diff options
| author | Roland McGrath <roland@gnu.org> | 2005-07-03 04:40:34 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2005-07-03 04:40:34 +0000 |
| commit | 88e3fbcb5d6829f8980d6bb356b1c0cd7a38187b (patch) | |
| tree | 41b73f55c91439f87d82e5d32b9d8e46e82ce3c1 /linuxthreads | |
| parent | d19b1b4f2ff49e085b55e8564b52ca17b028e335 (diff) | |
| download | glibc-88e3fbcb5d6829f8980d6bb356b1c0cd7a38187b.tar.gz | |
linuxthreads, linuxthreads_db: Directories removed (preserved in ports repository).
Diffstat (limited to 'linuxthreads')
322 files changed, 0 insertions, 42308 deletions
diff --git a/linuxthreads/Banner b/linuxthreads/Banner deleted file mode 100644 index f0be105a5d..0000000000 --- a/linuxthreads/Banner +++ /dev/null @@ -1 +0,0 @@ -linuxthreads-0.10 by Xavier Leroy diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog deleted file mode 100644 index 79cb785a22..0000000000 --- a/linuxthreads/ChangeLog +++ /dev/null @@ -1,6587 +0,0 @@ -2005-06-14 Alan Modra <amodra@bigpond.net.au> - - * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h (PSEUDO): - Invoke CGOTSETUP and CGOTRESTORE. - (CGOTSETUP, CGOTRESTORE): Define. - (SINGLE_THREAD_P): Add variant for new PLT/GOT layout. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S (__vfork): Avoid - bl into the GOT when HAVE_ASM_PPC_REL16. - -2005-05-23 Roland McGrath <roland@redhat.com> - - * sysdeps/arm, sysdeps/unix/sysv/linux/arm: Subdirectories moved to - ports repository. - -2005-05-23 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h - [IS_IN_librt] (CENABLE, CDISABLE): Use JUMPTARGET instead of - __librt_*_asynccancel@local. - -2005-05-17 Alan Modra <amodra@bigpond.net.au> - - * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Delete - all occurrences of JUMPTARGET. Instead append @local to labels. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: Likewise. - -2005-05-19 Richard Henderson <rth@redhat.com> - - * sysdeps/ia64/pspinlock.c (__pthread_spin_lock): Use - __sync_val_compare_and_swap, not explicit _si variant. - (__pthread_spin_trylock): Likewise. - -2005-05-05 Daniel Jacobowitz <dan@codesourcery.com> - - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Remove explicit - .eh_frame section, use cfi_* directives. - -2005-04-27 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/getcpuclockid.c: Include spinlock.h. - Fix a typo in kernel-posix-cpy-timers.h include name, use <> instead - of "" includes. - (pthread_getcpuclockid): Fix 2 typos. - -2005-04-27 Roland McGrath <roland@redhat.com> - - * sysdeps/pthread/getcpuclockid.c (pthread_getcpuclockid) - [__NR_clock_getres]: Use kernel-supplied CPU clocks if available. - -2005-03-31 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Use - functionally equivalent, but shorter instructions. - -2005-03-28 Daniel Jacobowitz <dan@codesourcery.com> - - * sysdeps/mips/tls.h: New file. - * sysdeps/unix/sysv/linux/mips/vfork.S: New file. - -2005-03-21 GOTO Masanori <gotom@debian.or.jp> - - * linuxthreads/sysdeps/m68k/Makefile: Remove to delete - unneeded o-iterator thing. - -2005-02-21 H.J. Lu <hongjiu.lu@intel.com> - - * sysdeps/unix/sysv/linux/ia64/pt-initfini.c: Add local _init - and _fini labels. - -2005-03-05 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/Makefile (CFLAGS-pt-initfini.s): Unconditionally - use -mtune. - -2005-03-05 Roland McGrath <roland@redhat.com> - - * sysdeps/i386/Makefile (CFLAGS-pt-initfini.s): Use $(cc-mtune). - -2005-03-05 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/powerpc/tcb-offsets.sym (thread_offsetof): Rework for GCC 4. - -2005-02-09 Daniel Jacobowitz <dan@codesourcery.com> - - [BZ #740] - * descr.h (__pthread_find_self, thread_self): Mark as pure - instead of const. - -2005-02-07 Jakub Jelinek <jakub@redhat.com> - - [BZ #739] - * specific.c (pthread_key_delete): If pthread_create has not been - called yet, clear p_specific for the current thread. - * Makefile (tests): Add tst-tsd1. - * tst-tsd1.c: New test. - -2005-01-08 Andreas Jaeger <aj@suse.de> - - * pthread.c (init_one_static_tls): Adjust initialization of DTV - entry for static tls deallocation fix. - - * sysdeps/alpha/tls.h (dtv_t): Change pointer type to be struct which - also contains information whether the memory pointed to is static - TLS or not, include <stdbool.h>. - * sysdeps/i386/tls.h: Likewise. - * sysdeps/ia64/tls.h: Likewise. - * sysdeps/powerpc/tls.h: Likewise. - * sysdeps/s390/tls.h: Likewise. - * sysdeps/sh/tls.h: Likewise. - * sysdeps/sparc/tls.h: Likewise. - * sysdeps/x86_64/tls.h: Likewise. - -2004-12-21 Jakub Jelinek <jakub@redhat.com> - - * Makefile (tests): Add tst-align. - * tst-align.c: New test. - * sysdeps/i386/Makefile (CFLAGS-tst-align.c): Add - -mpreferred-stack-boundary=4. - -2004-12-12 Ulrich Drepper <drepper@redhat.com> - - * internals.h: Include <stdbool.h> to match includes used in nptl. - -2004-12-01 Jakub Jelinek <jakub@redhat.coM. - - * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_CPUTIME, - _POSIX_THREAD_CPUTIME): Define to 0. - * sysdeps/pthread/timer_create.c (timer_create): Remove unused code - handling CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID. - * sysdeps/pthread/timer_routines.c (__timer_signal_thread_pclk, - __timer_signal_thread_tclk): Remove. - (init_module): Remove their initialization. - (thread_cleanup): Remove their cleanup assertions. - * sysdeps/pthread/posix-timer.h (__timer_signal_thread_pclk, - __timer_signal_thread_tclk): Remove. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Removed. - * sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h: Removed. - * sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h: Removed. - * tst-clock1.c (do_test): Check for availability of CPU clock. - -2004-11-18 Daniel Jacobowitz <dan@codesourcery.com> - - * sysdeps/unix/sysv/linux/arm/sysdep-cancel.h: Update RETINSTR use. - * sysdeps/unix/sysv/linux/arm/vfork.S: Likewise. - -2004-12-02 Roland McGrath <roland@redhat.com> - - * Makefile (libpthread-nonshared): Variable removed. - ($(objpfx)libpthread_nonshared.a): Target removed. - ($(inst_libdir)/libpthread_nonshared.a): Likewise. - These are now handled by generic magic from - libpthread-static-only-routines being set. - -2004-11-27 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_PRIORITIZED_IO, - _POSIX2_CHAR_TERM, _POSIX_THREAD_PRIO_INHERIT, - _POSIX_THREAD_PRIO_PROTECT): Define. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - * sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h: Likewise. - * sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h: Likewise. - -2004-11-26 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_ADVISORY_INFO, - _POSIX_SPORADIC_SERVER, _POSIX_THREAD_SPORADIC_SERVER, _POSIX_TRACE, - _POSIX_TRACE_EVENT_FILTER, _POSIX_TRACE_INHERIT, _POSIX_TRACE_LOG, - _POSIX_TYPED_MEMORY_OBJECTS): Define. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - * sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h: Likewise. - * sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h: Likewise. - -2004-11-05 Maciej W. Rozycki <macro@mips.com> - - * sysdeps/mips/pspinlock.c: Include <sgidefs.h>. Use _ABIO32, - _ABIN32 and _ABI64 for ABI selection throughout. - * sysdeps/mips/pt-machine.h: Use _ABIO32, _ABIN32 and _ABI64 for - ABI selection throughout. - -2004-10-18 Roland McGrath <roland@redhat.com> - - [BZ #406] - * Makefile (linuxthreads-CPPFLAGS): New variable; - adds -DIS_IN_linuxthreads=1. - * sysdeps/i386/tls.h: Protect "useldt.h" with - [!IS_IN_linuxthreads && !DO_MODIFY_LDT]. - * sysdeps/i386/i686/pt-machine.h: Revert last change. - -2004-10-14 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/errno-loc.c: Don't undef #errno - if RTLD_PRIVATE_ERRNO. - -2004-10-05 Dwayne Grant McConnell <dgm69@us.ibm.com> - - * pthread.c: Mask restart signal during cancel signal handler. - -2004-10-05 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h (_POSIX_CPUTIME, - _POSIX_THREAD_CPUTIME): Define to 0. - -2004-10-04 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Set _POSIX_CPUTIME - and _POSIX_THREAD_CPUTIME to zero. - * sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h: Likewise. - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define - _POSIX_THREAD_PROCESS_SHARED and _POSIX_CLOCK_SELECTION as -1. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - * sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h: Likewise. - * sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h: Likewise. - -2004-09-25 Roland McGrath <roland@redhat.com> - - [BZ #406] - * sysdeps/i386/i686/pt-machine.h: Don't #include "../useldt.h" if - [_TLS_H], since sysdeps/i386/tls.h includes it after including us. - -2004-09-24 Roland McGrath <roland@redhat.com> - - [BZ #406] - * sysdeps/i386/tls.h: Move #include "useldt.h" outside - of [__ASSUME_LDT_WORKS > 0] test. - Reported by Carlos Velasco <carlos.velasco@newipnet.com>. - -2004-09-21 Roland McGrath <roland@redhat.com> - - * Versions: Add comment about linuxthreads' frozen ABI. - -2004-09-20 Ulrich Drepper <drepper@redhat.com> - - * Versions: Remove exports for pthread_set*id_np functions. - * sysdeps/pthread/pthread.h: Remove pthread_set*id_np prototypes - for now. - * Makefile: Don't build pthread_set*id code for now. - -2004-09-19 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/pthread.h: Declare pthread_setgid_np, - pthread_setuid_np, pthread_setegid_np, pthread_seteuid_np, - pthread_setregid_np, pthread_setreuid_np, pthread_setresgid_np, - and pthread_setresuid_np. - * pthread_setgid_np.c: New file. - * pthread_setuid_np.c: New file. - * pthread_setegid_np.c: New file. - * pthread_seteuid_np.c: New file. - * pthread_setregid_np.c: New file. - * pthread_setreuid_np.c: New file. - * pthread_setresgid_np.c: New file. - * pthread_setresuid_np.c: New file. - * Versions [libpthread, GLIBC_2.3.4]: Add pthread_setgid_np, - pthread_setuid_np, pthread_setegid_np, pthread_seteuid_np, - pthread_setregid_np, pthread_setreuid_np, pthread_setresgid_np, - and pthread_setresuid_np. - * Makefile (libpthread-routines): Add pthread_setuid, pthread_seteuid, - pthread_setreuid, pthread_setresuid, pthread_setgid, pthread_setegid, - pthread_setregid, and pthread_setresgid. - -2004-09-12 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/pthread.h: Make rwlock prototypes available also - for __USE_XOPEN2K. - * sysdeps/pthread/bits/pthreadtypes.h: Define rwlock types also - for __USE_XOPEN2K. [BZ #320] - -2004-09-04 Jakub Jelinek <jakub@redhat.com> - - * tst-cancel4.c (tf_waitid): Use WEXITED flag bit if available. - -2004-09-07 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/pthread.h (pthread_once): Remove __THROW since - the initialization function might throw. - -2004-08-30 Roland McGrath <roland@frob.com> - - * Makefile (libpthread-abi-frozen): New variable. - -2004-08-26 Roland McGrath <roland@redhat.com> - - * configure.in: New file. If nptl add-on is also selected, barf if - explicit and elide ourselves if implicit. - * configure: Now generated. - -2004-08-25 Richard Sandiford <rsandifo@redhat.com> - - * sysdeps/unix/sysv/linux/mips/sysdep-cancel.h (CENABLE, CDISABLE, - __local_multiple_threads): Fix definitions for IS_IN_librt. - * sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h: Likewise. - -2004-08-22 Andreas Schwab <schwab@suse.de> - - * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (PSEUDO) [IS_IN_librt]: - Save gp around CENABLE/CDISABLE calls. - -2004-08-15 Roland McGrath <roland@frob.com> - - * pthread_atfork.c: Update copyright terms including special exception - for these trivial files, which are statically linked into executables - that use dynamic linking for the significant library code. - -2004-08-09 Jakub Jelinek <jakub@redhat.com> - - * libc-tsd.c: Move resolv.h include before the #if. - (__res_maybe_init): New function. Add libc_hidden_def. - -2004-08-02 Ulrich Drepper <drepper@redhat.com> - - * linuxthreads.texi (Cleanup Handlers): Fix typo. - Reported by Bjoern Engelmann <bjengelmann@gmx.de>. - -2004-07-23 Jakub Jelinek <jakub@redhat.com> - - [BZ #284] - * sysdeps/pthread/pthread.h (pthread_getcpuclockid): Use __clockid_t - instead of clockid_t. - -2004-07-21 Roland McGrath <roland@redhat.com> - - * Makefile ($(objpfx)multidir.mk): Use $(make-target-directory). - -2004-07-02 Roland McGrath <roland@redhat.com> - - * configure: Don't exit. - -2004-07-20 Alexandre Oliva <aoliva@redhat.com> - - * sysdeps/mips/pt-machine.h: Use standard names for ABI macros, - include sgidefs.h. - * sysdeps/mips/atomicity.h: Likewise. - -2004-07-19 Alexandre Oliva <aoliva@redhat.com> - - * sysdeps/unix/sysv/linux/mips/Makefile (CFLAGS-pt-initfini.s): - Remove redundant override that missed -g0. - -2004-07-14 Kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h - (__local_multiple_threads): Define for librt. - (SINGLE_THREAD_P): Likewise. - -2004-07-07 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/getcpuclockid.c (pthread_getcpuclockid): Allow - using other thread's clock. - * ptclock_gettime.c (__pthread_clock_gettime): Likewise. - * ptclock_settime.c (__pthread_clock_settime): Likewise. - * internals.h (__pthread_clock_gettime, __pthread_clock_settime): - Remove prototypes. - Reported by Bernd Schmidt <bernds@redhat.com>. - * Makefile (librt-tests): Add tst-clock1. - * tst-clock1.c: New test. - - * sysdeps/x86_64/Versions: New file. - * sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h: New file. - * sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h: New file. - -2004-04-16 Andreas Schwab <schwab@suse.de> - - * sysdeps/ia64/tls.h (INIT_SYSINFO): Cast dl_sysinfo to void*. - -2004-07-05 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/s390/pspinlock.c (__pthread_spin_lock, - __pthread_spin_trylock): Use constraint "m" instead of "0" for - futex. - * sysdeps/ia64/pt-machine.h (__compare_and_swap, - __compare_and_swap_with_release_semantic, testandset): Use - constraint "m" instead of "0" for futex. - -2004-06-29 Kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (CENABLE): Fix - branch offset for a PLT entry. - (CDISABLE): Likewise. - -2004-05-31 Andreas Jaeger <aj@suse.de> - - * sysdeps/unix/sysv/linux/mips/Makefile (CFLAGS-pt-initfini.s): - Set to -fno-unit-at-a-time. - Patch by Dan Kegel <dank@kegel.com>. - -2004-05-04 Jakub Jelinek <jakub@redhat.com> - - * tst-stack1.c: Don't include mcheck.h. - (do_test): Make sure user defined stacks aren't reused, - don't free them at the end. [BZ #110] - -2004-05-02 Jakub Jelinek <jakub@redhat.com> - - * manager.c: Include not-cancel.h. - (__pthread_manager): Use read_not_cancel instead of __libc_read. - (pthread_start_thread, __pthread_manager_sighandler): Use - write_not_cancel instead of __libc_write. - (pthread_reap_children): Use waitpid_not_cancel instead of - __libc_waitpid. - * pthread.c: Include not-cancel.h. - (__pthread_initialize_minimal, __pthread_create_2_1, - pthread_onexit_process, __pthread_message): Use - write_not_cancel instead of __libc_write. - (__pthread_initialize_manager): Likewise. Use close_not_cancel - instead of __libc_close. - (__pthread_reset_main_thread): Use close_not_cancel instead of - __libc_close. - * join.c: Include not-cancel.h. - (__pthread_do_exit, pthread_join, pthread_detach): Use - write_not_cancel instead of __libc_write. - * semaphore.c: Include not-cancel.h. - (__new_sem_post): Use write_not_cancel instead of __libc_write. - * specific.c: Include not-cancel.h. - (pthread_key_delete): Use write_not_cancel instead of __libc_write. - -2004-05-01 Jakub Jelinek <jakub@redhat.com> - - * Versions (libc): Add __on_exit and __libc_sigaction. - -2004-04-28 Jakub Jelinek <jakub@redhat.com> - - * semaphore.c (sem_timedwait): Return -1 and set errno instead of - returning error number [BZ #133]. Patch by <rmhaddad@yahoo.com>. - -2004-04-22 SUGIOKA Toshinobu <sugioka@itonet.co.jp> - - * sysdeps/unix/sysv/linux/sh/vfork.S: Fix wrong function pointer - reference in PIC case. - -2004-04-20 Jakub Jelinek <jakub@redhat.com> - - * oldsemaphore.c (SEM_VALUE_MAX): Remove. - -2004-04-19 Kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (CENABLE): Define - for librt. Save the return value to a safe register. - (CDISABLE): Define for librt. Set the function argument correctly. - -2004-04-18 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h - (PSEUDO_CANCEL): Define. - (PSEUDO): Use it. - * sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (CENABLE, - CDISABLE): For librt, append @PLT. - -2004-04-17 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/x86_64/tls.h [!__ASSEMBLER__]: Include tcb-offsets.h. - - * sysdeps/pthread/timer_gettime.c (timer_gettime): For expired timer - return it_value { 0, 0 }. - * sysdeps/pthread/timer_create.c (timer_create): Handle SIGEV_NONE - like SIGEV_SIGNAL. - * sysdeps/pthread/timer_routines.c (thread_expire_timer): Remove - assertion for SIGEV_NONE. - (thread_attr_compare): Compare all attributes, not just a partial - subset. - - * sysdeps/unix/sysv/linux/mq_notify.c: Include stdlib.h. - -2004-04-17 Ulrich Drepper <drepper@redhat.com> - - * semaphore.h (SEM_VALUE_MAX): Just use a plain number. - -2004-04-16 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Fix last patch. - -2004-04-13 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/mq_notify.c: Shut up GCC warning. - -2004-04-12 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/mq_notify.c: New file. - - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h (CENABLE): Define - for librt. - (CDISABLE): Likewise. - -2004-04-08 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/bits/local_lim.h (MQ_PRIO_MAX): Define. - * sysdeps/unix/sysv/linux/alpha/bits/local_lim.h (MQ_PRIO_MAX): Define. - * sysdeps/unix/sysv/linux/ia64/bits/local_lim.h (MQ_PRIO_MAX): Define. - * sysdeps/unix/sysv/linux/sparc/bits/local_lim.h (MQ_PRIO_MAX): Define. - * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_MESSAGE_PASSING): - Define. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h - (_POSIX_MESSAGE_PASSING): Define. - -2004-04-10 Andreas Jaeger <aj@suse.de> - - * sysdeps/x86_64/pt-machine.h: Add used attribute to stack_pointer - to avoid warnings with GCC 3.5. - -2004-04-09 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/powerpc/tls.h (TLS_INIT_TP): Eliminate lvalue cast from - __thread_self assignment. - (THREAD_DTV): Replace __thread_register with __thread_self. - (INIT_THREAD_SELF): Eliminate lvalue cast from __thread_self - assignment. - -2004-04-08 Alexandre Oliva <aoliva@redhat.com> - - * signals.c (pthread_sigmask): Don't ever block or mask - __pthread_sig_debug. - -2004-03-11 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/powerpc/tls.h: Remove __powerpc64__ conditional. - -2004-03-23 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/ia64/pt-machine.h (BUSY_WAIT_NOP): Define. - * sysdeps/x86_64/pt-machine.h (BUSY_WAIT_NOP): Likewise. - -2004-03-12 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/bits/local_lim.h: Add HOST_NAME_MAX. - * sysdeps/unix/sysv/linux/alpha/bits/local_lim.h: Likewise. - * sysdeps/unix/sysv/linux/ia64/bits/local_lim.h: Likewise. - * sysdeps/unix/sysv/linux/sparc/bits/local_lim.h: Likewise. - -2004-03-08 Andreas Jaeger <aj@suse.de> - - * sysdeps/i386/tls.h (TLS_DO_MODIFY_LDT_KERNEL_CHECK): - dl_osversion is readonly. - -2004-03-07 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/tls.h (INIT_SYSINFO): _dl_sysinfo is now in - _rtlf_global_ro. - * sysdeps/ia64/tls.h (INIT_SYSINFO): Likewise. - -2004-02-20 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/unix/sysv/linux/powerpc/ptlongjmp.c [SHARED]: Code only - valid for SHARED case. Correct spelling of __vmx_longjmp. - - * sysdeps/powerpc/pspinlock.c: Move from here. - * sysdeps/powerpc/powerpc32/pspinlock.c: To here. - * sysdeps/powerpc/powerpc64/pspinlock.c: New file. - * sysdeps/powerpc/powerpc64/pt-machine.h: Define __compare_and_swap32 - and __compare_and_swap32_with_release_semantics. - -2004-02-20 Jakub Jelinek <jakub@redhat.com> - - * Makefile (generated): Remove tst-stack1.mtrace and tst-stack1-mem. - (tests): Remove $(objpfx)tst-stack1-mem. - (tst-stack1-ENV): Remove. - ($(objpfx)tst-stack1-mem): Remove. - - * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h - (__syscall_error_handler2): Call CDISABLE. - * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h - (__syscall_error_handler2): Call CDISABLE. - - * sysdeps/unix/sysv/linux/ia64/dl-sysdep.h (DL_ARGV_NOT_RELRO): Define. - -2004-02-10 Steven Munroe <sjmunroe@us.ibm.com> - - * Makefile (libpthread-routines): Add ptcleanup. - * ptlongjmp.c: Removed. - * ptcleanup.c: Copied __pthread_cleanup_upto to here. New file. - * sysdeps/pthread/ptlongjmp.c: Copied longjmp to here. New file. - * sysdeps/unix/sysv/linux/powerpc/Versions: New file. - Version longjmp, siglongjmp for GLIBC_2.3.4. - * sysdeps/unix/sysv/linux/powerpc/ptlongjmp.c: New File. - -2004-01-22 Andreas Jaeger <aj@suse.de> - - * spinlock.c (__pthread_lock): Fix contraint to avoid warning. - (__pthread_release): Likewise. - -2004-01-16 Richard Henderson <rth@redhat.com> - - * attr.c: Include ldsodefs.h. - (pthread_getattr_np): Don't declare __libc_stack_end. - -2004-01-09 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h - [!HAVE_TLS_SUPPORT]: Define SINGLE_THREAD_P using static - __lib*_multiple_threads. - * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h - [!HAVE_TLS_SUPPORT]: Likewise. - -2004-01-13 Roland McGrath <roland@redhat.com> - - * sysdeps/powerpc/tcb-offsets.sym: Put -- separator line before any - conditionals. - -2004-01-10 Andreas Jaeger <aj@suse.de> - - * sysdeps/unix/sysv/linux/x86_64/vfork.S: Add cfi directives. - -2004-01-01 Andreas Jaeger <aj@suse.de> - - * Makefile (generated): Add missing files. - -2003-12-31 Ulrich Drepper <drepper@redhat.com> - - * attr.c (pthread_getattr_np): Make sure stack info returned for - main thread does not overlap with any other VMA. - Patch by Jakub Jelinek. - -2003-12-29 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/ia64/tls.h: Include dl-sysdep.h. - (INIT_SYSINFO): Define. - (TLS_INIT_TP): Use it. - -2003-12-28 Carlos O'Donell <carlos@baldric.uwo.ca> - - * attr.c (pthread_getattr_np): Add _STACK_GROWS_UP case. - -2003-12-26 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/pthread.h (pthread_setcancelstate, - pthread_setcanceltype, pthread_cancel, pthread_testcancel): Remove - __THROW. - * semaphore.h (sem_wait, sem_timedwait): Likewise. - -2003-12-17 Jakub Jelinek <jakub@redhat.com> - - * manager.c (pthread_free): Call _dl_deallocate_tls even for - p_userstack threads. - * pthread.c (__pthread_initialize_manager): Call _dl_deallocate_tls - on error. - (pthread_onexit_process): Update comment. - * Makefile (tests): Add tst-stack1. Depend on $(objpfx)tst-stack1-mem. - (generated): Add tst-stack1.mtrace and tst-stack1-mem. - (tst-stack1-ENV): Set. - ($(objpfx)tst-stack1-mem): New. - * tst-stack1.c: New test. - -2003-12-16 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/powerpc/tcb-offsets.sym [!__powerpc64__]: Remove - conditional so MULTIPLE_THREADS_OFFSET is generated for both. - * sysdeps/powerpc/tls.h [!__powerpc64__]: Remove conditional - so TLS_MULTIPLE_THREADS_IN_TCB is generated for both. - * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: - Include tls.h. - -2003-12-04 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h - (SINGLE_THREAD_P): Test using thread local p_multiple_threads field. - -2003-12-10 David Mosberger <davidm@hpl.hp.com> - - * sysdeps/unix/sysv/linux/ia64/pt-initfini.c: Update copyright - message. Add include of <stddef.h>. - (INIT_NEW_WAY): New macro. - (INIT_OLD_WAY): Likewise. - (_init): Add unwind directives. Invoke - __pthread_initialize_minimal() via INIT_NEW_WAY or INIT_OLD_WAY, - respectively. - (_init_EPILOG_BEGINS): Add unwind-directives. Drop unused .regstk - directive. - (_fini): Add unwind directives. Drop unnecessary .align 16 - directive (bundles are always 16-byte aligned). - (_fini_EPILOG_BEGINS): Add unwind-directives. - -2003-11-19 David Mosberger <davidm@hpl.hp.com> - - * sysdeps/unix/sysv/linux/ia64/dl-sysdep.h: New file. - -2003-12-10 Andreas Jaeger <aj@suse.de> - Ruediger Oertel <ro@suse.de> - - * sysdeps/alpha/elf/pt-initfini.c (__asm__): Remove extra .prologue. - -2003-11-30 Andreas Jaeger <aj@suse.de> - - * Makefile (CFLAGS-pt-initfini.s): Add $(fno_unit_at_a_time). - * sysdeps/unix/sysv/linux/x86_64/Makefile (CFLAGS-pt-initfini.s): - Likewise. - -2003-11-04 Jakub Jelinek <jakub@redhat.com> - - * signals.c (__pthread_sigaction): Set __sighandler[sig].old before - __libc_sigaction if it has been one of the special values before. - -2003-10-06 Carlos O'Donell <carlos@baldric.uwo.ca> - - * pthread.c (__pthread_self_stack): _STACK_GROWS_UP case added. - (__pthread_find_self): Likewise. - * manager.c (thread_segment): _STACK_GROWS_UP case added. - -2003-10-10 Carlos O'Donell <carlos@baldric.uwo.ca> - - * linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h: New file. - -2003-10-10 Carlos O'Donell <carlos@baldric.uwo.ca> - - * sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h: New file. - -2003-10-07 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Backout 2003-10-02 - changes. - (SAVE_OLDTYPE_0): Fix a typo. - -2003-10-02 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h (DOCARGS_1): Use - correct offset. - -2003-10-02 Jakub Jelinek <jakub@redhat.com> - - * Makefile (tests): Add tst-cancel8. - * tst-cancel8.c: New test. - -2003-10-02 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Fix saving and - restoring of the old cancellation type. - -2003-09-10 Chris Demetriou <cgd@broadcom.com> - - * sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h: New file. - -2003-09-30 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/malloc-machine.h [!__libc_maybe_call2] (mutex_init, - mutex_lock, mutex_trylock, mutex_unlock): Remove. - -2003-09-27 Wolfram Gloger <wg@malloc.de> - - * sysdeps/pthread/malloc-machine.h: New file. - -2003-09-18 H.J. Lu <hongjiu.lu@intel.com> - - * attr.c (__pthread_attr_init_2_1): Double __guardsize size - if NEED_SEPARATE_REGISTER_STACK is defined. - -2003-09-22 Philip Blundell <philb@gnu.org> - - * forward.c: Add _pthread_cleanup_push, _pthread_cleanup_pop. - * sysdeps/pthread/pthread-functions.h (struct pthread_functions): - Likewise. - * pthread.c (__pthread_elements): Initialise these new elements. - * sysdeps/pthread/bits/libc-lock.h (__libc_cleanup_push): Use - __libc_maybe_call. - (__libc_cleanup_pop): Likewise. - -2003-09-22 Jakub Jelinek <jakub@redhat.com> - - * attr.c: Include stdlib.h. - -2003-09-18 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/pthread.h (pthread_getattr_np): Clarify usage. - - * tst-attr1.c: New test. - * Makefile (tests): Add tst-attr1. - -2003-09-17 Philip Blundell <philb@gnu.org> - - * sysdeps/unix/sysv/linux/arm/vfork.S: Branch to fork if - libpthread is loaded. Elide backwards compatibility code when not - required. - -2003-09-17 Jakub Jelinek <jakub@redhat.com> - - * descr.h (manager_thread): Rename to... - (__pthread_manager_threadp): ... this. - * pthread.c (manager_thread): Define to __pthread_manager_threadp. - (__pthread_manager_threadp): New variable. - * internals.h (__manager_thread): Define to - __pthread_manager_threadp if USE_TLS. - -2003-09-15 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/i386/Makefile (CFLAGS-cancel.c, CFLAGS-manager.c, - CFLAGS-pthread.c, CFLAGS-sighandler.c): Add - -mpreferred-stack-boundary=4. - -2003-09-16 Ulrich Drepper <drepper@redhat.com> - - * attr.c (pthread_getattr_np): Correctly fill in the stack-related - values for the initial thread. - -2003-09-17 Jakub Jelinek <jakub@redhat.com> - - * pthread.c (manager_thread): Remove static, add attribute_hidden. - (thread_self_stack): Rename to... - (__pthread_self_stack): ... this. Remove static. - (pthread_handle_sigcancel): Use check_thread_self (). - (pthread_handle_sigrestart): Likewise. - * sighandler.c (__pthread_sighandler, __pthread_sighandler_rt): - Likewise. - * descr.h (manager_thread): Declare. - * internals.h (__pthread_self_stack): New prototype. - (__manager_thread): Define. - (check_thread_self): New function. - -2003-09-15 Jakub Jelinek <jakub@redhat.com> - - * Makefile (CFLAGS-mutex.c): Add $(uses-callbacks). - (CFLAGS-sighandler.c): Change $(exceptions) into $(uses-callbacks). - -2003-09-12 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/s390/bits/typesizes.h: New. - (__SSIZE_T_TYPE): Define to __SWORD_TYPE for gcc 2.95.x and - __SLONGWORD_TYPE otherwise. - -2003-09-11 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/powerpc/powerpc64/pt-machine.h [MEMORY_BARRIER]: Use lwsync. - [READ_MEMORY_BARRIER]: Define. - [WRITE_MEMORY_BARRIER]: Define. - -2003-09-10 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/pthread-functions.h (struct pthread_functions): Move - ptr___pthread_cond_timedwait to the end of the structure to avoid - breaking Wine unnecessarily. - -2003-09-08 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/s390/bits/typesizes.h: Remove. - -2003-09-02 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/alpha/bits/local_lim.h: New file. - * sysdeps/unix/sysv/linux/alpha/Versions: New file. - * sysdeps/unix/sysv/linux/ia64/bits/local_lim.h: New file. - * sysdeps/unix/sysv/linux/ia64/Versions: New file. - * sysdeps/unix/sysv/linux/sparc/bits/local_lim.h: New file. - * sysdeps/unix/sysv/linux/sparc/Versions: New file. - * attr.c (__old_pthread_attr_setstacksize, - __old_pthread_attr_setstack): New functions. - (pthread_attr_setstacksize): If PTHREAD_STACK_MIN != 16384, export - as @@GLIBC_2.3.2 and also export compatibility @GLIBC_2.1. - (pthread_attr_setstack): If PTHREAD_STACK_MIN != 16384, export - as @@GLIBC_2.3.2 and also export compatibility @GLIBC_2.2. - * tststack.c: Include limits.h and sys/param.h. - (main): Set size to MAX (70 * 1024, PTHREAD_STACK_MIN). - - * barrier.c (__pthread_barrierattr_getpshared): Always - return PTHREAD_PROCESS_PRIVATE. - (pthread_barrierattr_setpshared): Return EINVAL if pshared - is neither PTHREAD_PROCESS_PRIVATE nor PTHREAD_PROCESS_SHARED. - -2003-09-02 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/i386/dl-sysdep.h - (DL_SYSINFO_IMPLEMENTATION): Add CFI and make sure the code ends - up in .text. - - * barrier.c (pthread_barrierattr_setpshared): We don't handle - inter-process barriers. - -2003-09-01 Jakub Jelinek <jakub@redhat.com> - - * Makefile (tests): Add tst-tls1. - (module-names): Add tst-tls1mod{,a,b,c,d,e,f}. - ($(objpfx)tst-tls1mod{,a,b,c,d,e,f}.so-no-z-defs): Set to yes. - ($(objpfx)tst-tls1): New. - ($(objpfx)tst-tls2.out): Likewise. - (tests): Depend on $(objpfx)tst-tls2.out. - * tst-tls1.c: New test. - * tst-tls1.h: New. - * tst-tls1mod.c: New. - * tst-tls1moda.c: New. - * tst-tls1modb.c: New. - * tst-tls1modc.c: New. - * tst-tls1modd.c: New. - * tst-tls1mode.c: New. - * tst-tls1modf.c: New. - * tst-tls2.sh: New test. - - * internals.h (__pthread_cond_timedwait): New prototype. - * sysdeps/pthread/pthread-functions.h (struct pthread_functions): Add - ptr___pthread_cond_timedwait. - * pthread.c (__pthread_functions): Initialize them. - * forward.c (pthread_cond_timedwait@GLIBC_2.0, - pthread_cond_timedwait@@GLIBC_2.3.2): New forwards. - * Versions (libc): Export pthread_cond_timedwait@GLIBC_2.0, - pthread_cond_timedwait@@GLIBC_2.3.2. - -2003-08-27 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/pthread.h: Don't mark pthread_exit, - pthread_join, pthread_cond_wait, and pthread_cond_timedwait with - __THROW to match NPTL. - -2003-08-13 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/Makefile [subdir=rt] (CPPFLAGS): Add - -DBROKEN_THREAD_SIGNALS. - -2003-08-11 Steven Munroe <sjmunroe@us.ibm.com> - - * manager.c (pthread_start_thread) [!(USE_TLS && HAVE___THREAD)]: - Correct spelling of per thread resolver state. - -2003-08-07 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/bits/libc-lock.h [_LIBC && SHARED] - (__rtld_lock_default_lock_recursive, - __rtld_lock_default_unlock_recursive): Define. - [_LIBC && SHARED] (__rtld_lock_lock_recursive, - __rtld_lock_unlock_recursive): Define using - GL(_dl_rtld_*lock_recursive). - * pthread.c (pthread_initialize): Initialize _dl_rtld_lock_recursive - and _dl_rtld_unlock_recursive. Lock GL(_dl_load_lock) the same - number of times as GL(_dl_load_lock) using non-mt implementation was - nested. - -2003-07-31 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/bits/typesizes.h (__SSIZE_T_TYPE): Define. - * sysdeps/unix/sysv/linux/alpha/bits/typesizes.h (__SSIZE_T_TYPE): - Likewise. - * sysdeps/unix/sysv/linux/sparc/bits/typesizes.h (__SSIZE_T_TYPE): - Likewise. - * sysdeps/unix/sysv/linux/s390/bits/typesizes.h: New file. - - * sysdeps/pthread/pthread.h (pthread_attr_setstackaddr, - pthread_attr_setstacksize): Change PTHREAD_STACK_SIZE to - PTHREAD_STACK_MIN in comments. - - * sysdeps/alpha/pt-machine.h (PT_EI): Add - __attribute__((always_inline)). - * sysdeps/arm/pt-machine.h (PT_EI): Likewise. - * sysdeps/cris/pt-machine.h (PT_EI): Likewise. - * sysdeps/hppa/pt-machine.h (PT_EI): Likewise. - * sysdeps/i386/i686/pt-machine.h (PT_EI): Likewise. - * sysdeps/i386/pt-machine.h (PT_EI): Likewise. - * sysdeps/ia64/pt-machine.h (PT_EI): Likewise. - * sysdeps/m68k/pt-machine.h (PT_EI): Likewise. - * sysdeps/mips/pt-machine.h (PT_EI): Likewise. - * sysdeps/powerpc/powerpc32/pt-machine.h (PT_EI): Likewise. - * sysdeps/powerpc/powerpc64/pt-machine.h (PT_EI): Likewise. - * sysdeps/s390/s390-32/pt-machine.h (PT_EI): Likewise. - * sysdeps/s390/s390-64/pt-machine.h (PT_EI): Likewise. - * sysdeps/sh/pt-machine.h (PT_EI): Likewise. - * sysdeps/sparc/sparc32/pt-machine.h (PT_EI): Likewise. - * sysdeps/sparc/sparc64/pt-machine.h (PT_EI): Likewise. - * sysdeps/x86_64/pt-machine.h (PT_EI): Likewise. - * spinlock.h (__pthread_set_own_extricate_if): Likewise. - * sysdeps/ia64/tls.h (TLS_INIT_TP): Cast tcbp to __typeof - (__thread_self). - * Examples/ex13.c (main): Change res type to void * to avoid - warnings. - * tst-cancel.c (cleanup, inner, tf1, tf2, tf3): Comment out. - -2003-07-30 Jakub Jelinek <jakub@redhat.com> - - * pthread.c (init_one_static_tls, __pthread_init_static_tls): New - functions. - (pthread_initialize): Initialize GL(dl_init_static_tls). - -2003-06-19 Daniel Jacobowitz <drow@mvista.com> - - * sysdeps/pthread/timer_create.c (timer_create): Call timer_delref - before __timer_dealloc. - * sysdeps/pthread/timer_routines.c (__timer_thread_find_matching): - Don't call list_unlink. - -2003-07-29 Roland McGrath <roland@redhat.com> - - * Makefile [$(build-shared) = yes] (tests): Depend on $(test-modules). - -2003-07-25 Roland McGrath <roland@redhat.com> - - * manager.c (pthread_start_thread): Fix typo in last change. - -2003-07-14 Guido Guenther <agx@sigxcpu.org> - - * sysdeps/unix/sysv/linux/mips/sysdep-cancel.h: Add IS_IN_librt, - use L() for local labels. - -2003-07-22 Jakub Jelinek <jakub@redhat.com> - - * descr.h (struct _pthread_descr_struct): Provide p_res member - even if USE_TLS && HAVE___THREAD. - * sysdeps/pthread/res-state.c (__res_state): Return __resp - if USE___THREAD. - * manager.c: Include resolv.h. - (pthread_start_thread): Initialize __resp. - * libc-tls-loc.c (__res_state): Return __resp. - * Makefile (tests): Add tst-_res1. - (modules-names, extra-objs, test-extras, test-modules): Add support - for test modules. - ($(objpfx)tst-_res1mod2.so): Depend on $(objpfx)tst-_res1mod1.so. - ($(objpfx)tst-_res1): Depend on $(objpfx)tst-_res1mod2.so and - -lpthread. - * tst-_res1.c: New test. - * tst-_res1mod1.c: New test. - * tst-_res1mod2.c: New test. - -2003-07-20 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/bits/libc-lock.h: Define __libc_cleanup_push and - __libc_cleanup_pop. - - * tst-cancel-wrappers.sh: lseek and llseek are no cancellation points. - -2003-07-14 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Fix typo - in test for compilation in libc. - -2003-07-04 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (PSEUDO): Use - different symbol for the cancellation syscall wrapper and - non-cancellation syscall wrapper. - (PSEUDO_END): Define. - -2003-07-05 Richard Henderson <rth@redhat.com> - - * sysdeps/alpha/elf/pt-initfini.c: Avoid .ent/.end. - -2003-06-20 Kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: Support cancellation - in librt. - -2003-06-21 Andreas Schwab <schwab@suse.de> - - * sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h: Support cancellation - in librt. - -2003-06-20 Richard Henderson <rth@redhat.com> - - * sysdeps/unix/sysv/linux/alpha/Makefile (libpthread-routines): - Remove ptw-osf_sigprocmask. - -2003-06-18 Jakub Jelinek <jakub@redhat.com> - - * internals.h (__librt_multiple_threads, __librt_enable_asynccancel, - __librt_disable_asynccancel): Declare. - (LIBC_CANCEL_ASYNC, LIBC_CANCEL_RESET, LIBC_CANCEL_HANDLED): Define - for IS_IN_librt. - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Support cancellation - in librt. - * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise. - * sysdeps/x86_64/tcb-offsets.sym: New file. - * sysdeps/x86_64/Makefile: New file. - * sysdeps/x86_64/tls.h (tcbhead_t): Add multiple_threads. - * Versions (libc): Export __librt_enable_asynccancel, - __librt_disable_asynccancel and __librt_multiple_threads as - GLIBC_PRIVATE. - * libc-cancellation.c (__librt_multiple_threads, - __librt_enable_asynccancel, __librt_disable_asynccancel): New aliases. - -2003-06-12 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h - (SINGLE_THREAD_P): Replace @ got notation with @toc. - -2003-06-11 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/powerpc/pspinlock.c (__pthread_spin_init): Fix - initializer [PR libc/5052]. - -2003-06-09 Andreas Schwab <schwab@suse.de> - - * Makefile: Move inclusion of ../Rules down after extra-objs is - fully known. - -2003-06-06 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/arm/sysdep-cancel.h: New sequences for - 5+ arg syscalls only needed for PIC. - Patch by Ralph Siemsen <ralphs@netwinder.org>. - -2003-06-05 Richard Henderson <rth@redhat.com> - - * sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h (PSEUDO): Use - and require CFI assembler directives. - * sysdeps/unix/sysv/linux/alpha/vfork.S: Likewise. - -2003-05-30 Andreas Jaeger <aj@suse.de> - - * sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h - (SAVESTK_0): Add CFI directives. - (SAVESTK_3): Likewise. - (SAVESTK_5): Likewise. - (RESTSTK_0): Likewise. - (RESTSTK_3): Likewise. - (RESTSTK_5): Likewise. - -2003-05-05 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/tls.h (TLS_DO_SET_THREAD_AREA): Add \n to error - messages. - -2003-05-04 Roland McGrath <roland@redhat.com> - - * Makefile ($(objpfx)../libc.so): New target. - -2003-04-26 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (__pthread_initialize_manager): Remove one last - p_multiple_threads call. - -2003-04-22 Jakub Jelinek <jakub@redhat.com> - - * pthread.c (__pthread_initialize_manager): Subtract - TLS_PRE_TCB_SIZE bytes from tcbp to get to descr. - * manager.c (pthread_handle_create): Subtract or add TLS_PRE_TCB_SIZE - instead of sizeof (pthread_descr). - (pthread_free): Add TLS_PRE_TCB_SIZE instead of sizeof (pthread_descr). - * sysdeps/powerpc/tls.h (TLS_INIT_TCB_SIZE, TLS_TCB_SIZE): Define to 0. - (TLS_INIT_TCB_ALIGN, TLS_TCB_ALIGN): Define to alignment of - pthread_descr. - (TLS_PRE_TCB_SIZE): Increase to cover tcbhead_t preceeded by pad - to TLS_TCB_ALIGN. - (INSTALL_DTV, GET_DTV, THREAD_DTV): tcbhead_t is immediately before - tcbp. - (TLS_INIT_TP, THREAD_SELF, INIT_THREAD_SELF): Don't add TLS_TCB_SIZE - unneccessarily. - (NO_TLS_OFFSET): Define. - -2003-04-22 Roland McGrath <roland@redhat.com> - - * Makeconfig (shared-thread-library): Reverse link order to work - around linker bug. - -2003-04-20 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/useldt.h (DO_SET_THREAD_AREA): Make sure the - compiler knows we use the ldt_entry variable and that the syscall - modifies the memory. - - * internals.h: Split pthread_functions definition into... - * sysdeps/pthread/pthread-functions.h: ...new file. - - * sysdeps/i386/useldt.h: Include <sysdep.h>. - -2003-04-13 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Rename macros to - match changes in NPTL sysdep-cancel.h. - -2003-04-11 Roland McGrath <roland@redhat.com> - - * Makefile (multidir): Don't set the variable here with $(shell ...). - ($(objpfx)multidir.mk): New target, generated makefile; include that. - (generated): Append it. - -2003-04-10 Jakub Jelinek <jakub@redhat.com> - - * Makefile (multidir, crti-objs, crtn-objs): New variables. - (generated-dirs): Add pathname component of multidir. - (omit-deps, extra-objs): Include $(multidir)/crt? as well. - ($(objpfx)libpthread.so): Depend on $(multidir)/crt?.o as well. - ($(objpfx)$(multidir), $(objpfx)$(multidir)/crti.o, - $(objpfx)$(multidir)/crtn.o): New. - * sysdeps/unix/sysv/linux/sparc/Makefile: Removed. - * sysdeps/unix/sysv/linux/x86_64/Makefile (LDFLAGS-pthread.so, - before-compile, generated): Don't generate and use specs. - ($(objpfx)specs): Remove. - -2003-04-11 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * sysdeps/s390/pspinlock.c (__pthread_spin_unlock): Fix asm contraints. - -2003-04-03 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/arm/sysdep-cancel.h (PSEUDO): Add - missing ; after ENTRY use [PR libc/4997]. - -2003-04-03 Jakub Jelinek <jakub@redhat.com> - - * pthread.c (pthread_initialize): Unblock __pthread_sig_cancel - in case the parent blocked it. - -2003-04-02 Jakub Jelinek <jakub@redhat.com> - - * Makefile (libpthread-routines): Add pthread_atfork. - (libpthread-static-only-routines): Add pthread_atfork. - -2003-04-01 Jakub Jelinek <jakub@redhat.com> - - * pthread.c (__pthread_wait_for_restart_signal): Use - __pthread_sigsuspend instead of sigsuspend. - * internals.h (__pthread_sigsuspend): New prototype. - * Makefile (libpthread-routines): Add pt-sigsuspend. - (tests): Add tst-cancel7. - * sysdeps/unix/sysv/linux/pt-sigsuspend.c: New file. - * sysdeps/unix/sysv/linux/alpha/pt-sigsuspend.S: New file. - * sysdeps/unix/sysv/linux/ia64/pt-sigsuspend.c: New file. - * sysdeps/unix/sysv/linux/s390/s390-64/pt-sigsuspend.c: New file. - * sysdeps/unix/sysv/linux/sparc/sparc64/pt-sigsuspend.c: New file. - * sysdeps/unix/sysv/linux/x86_64/pt-sigsuspend.c: New file. - * tst-cancel7.c: New test. - -2003-03-31 Alexandre Oliva <aoliva@redhat.com> - - * alloca_cutoff.c: Include internals.h. - * sysdeps/pthread/errno-loc.c: Include linuxthreads/internals.h. - * sysdeps/pthread/herrno-loc.c: Likewise. - * sysdeps/pthread/res-state.c: Likewise. - -2003-03-25 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/bits/typesizes.h: New file. - * sysdeps/unix/sysv/linux/alpha/bits/typesizes.h: New file. - * sysdeps/unix/sysv/linux/sparc/bits/typesizes.h: New file. - -2003-03-24 Daniel Jacobowitz <drow@mvista.com> - - * sysdeps/unix/sysv/linux/arm/sysdep-cancel.h - (DOARGS_5, DOARGS_6, DOARGS_7): Rewritten. - -2003-03-22 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/fork.c (__fork): Add libc_hidden_def. - -2003-03-21 Daniel Jacobowitz <drow@mvista.com> - - * sysdeps/unix/sysv/linux/arm/sysdep-cancel.h - (SINGLE_THREAD_P_PIC): Use "reg" instead of "lr". - -2003-03-21 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/i386/tls.h [__ASSUME_SET_THREAD_AREA_SYSCALL] - (TLS_SETUP_GS_SEGMENT): Fix a typo. - -2003-03-19 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/Makefile: Fix cut&paste error. - -2003-03-18 Roland McGrath <roland@redhat.com> - - * Versions (libpthread: GLIBC_2.2): Remove - pthread_barrierattr_getpshared, never really existed. - (libpthread: GLIBC_2.0): Move __pthread_initialize to ... - (libpthread: GLIBC_PRIVATE): ... here. - -2003-03-14 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/sparc/sparc64/Makefile: New file. - * sysdeps/unix/sysv/linux/sparc/Makefile ($(objpfx)specs): Use full - path for crt[in].o. - -2003-03-14 Alexandre Oliva <aoliva@redhat.com> - - * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Don't .set - mips2 on new abi. - * sysdeps/mips/pt-machine.h (__compare_and_swap): Likewise. - Handle 64-bit longs on n64. - -2003-03-07 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/ia64/pspinlock.c (__pthread_spin_lock, - __pthread_spin_trylock): Rewritten. - -2003-03-06 Ulrich Drepper <drepper@redhat.com> - - * tst-cancel4.c (tf_sleep): Lower sleep time a bit to not upset - recent kernels. - -2003-03-02 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/timer_create.c (timer_create): Return correct - error for CPU clocks. - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define - _POSIX_MONOTONIC_CLOCK. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - -2003-03-01 Roland McGrath <roland@redhat.com> - - * sysdeps/powerpc/powerpc64/pt-machine.h - (THREAD_GETMEM, THREAD_GETMEM_NC, THREAD_SETMEM, THREAD_SETMEM_NC): - New macros. - * sysdeps/powerpc/tls.h: Don't define those here. - - * sysdeps/powerpc/tls.h [! USE_TLS && !__powerpc64__]: Define - tcbhead_t with multiple_threads member. - [USE_TLS] (tcbhead_t): Define minimal one-word version. - [USE_TLS && !__powerpc64__] (TLS_MULTIPLE_THREADS_IN_TCB): Define. - * sysdeps/powerpc/tcb-offsets.sym [USE_TLS]: Use tls.h macros to - derive thread register offset of p_multiple_threads member. - - * descr.h (struct _pthread_descr_struct) [!USE_TLS || !TLS_DTV_AT_TP]: - Conditionalize p_header member on this. - [TLS_MULTIPLE_THREADS_IN_TCB]: Add p_multiple_threads alternatively. - * sysdeps/ia64/tls.h [USE_TLS] (TLS_MULTIPLE_THREADS_IN_TCB): Define. - * sysdeps/sh/tls.h: Likewise. - * sysdeps/ia64/tcb-offsets.sym [USE_TLS]: Use p_multiple_threads. - * sysdeps/sh/tcb-offsets.sym: Likewise. - * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h - (SINGLE_THREAD_P): Likewise. - * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h - (SINGLE_THREAD_P): Likewise. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h - (SINGLE_THREAD_P): Likewise. - * pthread.c (__pthread_initialize_manager): Likewise. - * manager.c (pthread_handle_create): Likewise. - - * sysdeps/powerpc/tls.h [HAVE_TLS_SUPPORT]: Define USE_TLS and all - related macros. - -2003-01-31 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S [SHARED]: - Conditionalize .toc section magic on this. - -2003-02-21 Roland McGrath <roland@redhat.com> - - * cancel.c (__pthread_perform_cleanup): Call __libc_thread_freeres - instead of __rpc_thread_destroy. - -2003-02-21 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S (__vfork): Call - __fork instead of branching to it if BROKEN_SPARC_WDISP22. - * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h (PSEUDO): - Fix typo. - * sysdeps/unix/sysv/linux/sparc/Makefile (specs): Add ./ prefix - to crti.o and crtn.o. - * sysdeps/unix/sysv/linux/x86_64/Makefile (specs): Likewise. - -2003-02-21 Roland McGrath <roland@redhat.com> - - * Makefile (install-lib-ldscripts): New variable. - -2003-02-20 Franz Sirl <Franz.Sirl-kernel@lauterbach.com> - - * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: Avoid short - interprocedure branches. - -2003-02-19 Ulrich Drepper <drepper@redhat.com> - - * specific.c (pthread_key_delete_helper): Don't use GETMEM, we - need the target thread's lock. - -2003-02-17 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/bits/local_lim.h: Define TTY_NAME_MAX - and LOGIN_NAME_MAX. - -2003-02-17 Kevin B. Hendricks <kevin.hendricks@sympatico.ca> - Franz Sirl <Franz.Sirl-kernel@lauterbach.com> - - * sysdeps/powerpc/Makefile: Handle tcb-offsets.sym. - * sysdeps/powerpc/tcb-offsets.sym: New file. - * sysdeps/powerpc/tls.h: New file. - * sysdeps/powerpc/powerpc32/pt-machine.h (FLOATING_STACKS): Define. - (ARCH_STACK_MAX_SIZE): Define. - (THREAD_SELF): Define. - (INIT_THREAD_SELF): Define. - (THREAD_GETMEM): Define. - (THREAD_GETMEM_NC): Define. - (THREAD_SETMEM): Define. - (THREAD_SETMEM_NC): Define. - (__thread_self): Declare. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Adjust - for thread register. - -2003-02-14 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S (__vfork): - Check pthread_create existance, not __pthread_fork. - -2003-02-12 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/Makefile: Define CFLAGS-confstr.c. - -2003-02-10 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/alpha/vfork.S (__vfork): Check - pthread_create existance, not __pthread_fork. - * sysdeps/unix/sysv/linux/i386/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/ia64/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/m68k/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S (__vfork): - Likewise. - * sysdeps/unix/sysv/linux/s390/s390-64/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/x86_64/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/sh/vfork.S (__vfork): Likewise. - Add .weak pthread_create. - * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S (__vfork): Fix a typo. - Check pthread_create existance, not __pthread_fork. - * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/s390/s390-32/vfork.S (__vfork): Branch to - __fork whenever libpthread.so is loaded. - -2003-02-09 Andreas Jaeger <aj@suse.de> - - * sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: - Rework: %r9 is destroyed by functions so don't use it as - temporary, align stack correctly, fix parameter for CDISABLE. - -2003-02-07 Kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/sh/Makefile: New file. - * sysdeps/sh/tcb-offsets.sym: Likewise. - * sysdeps/sh/tls.h: Don't include sysdep.h. Move include - of linuxthreads/descr.h after the definition of THREAD_SELF. - (tcbhead_t): Use IA64 type tcbhead_t for TLS case. - (TLS_TCB_SIZE): Set size of tcbhead_t. - (TLS_PRE_TCB_SIZE): Define. - (INSTALL_NEW_DTV): Set dtv of tcbhead_t structure instead of - a member of thread structure. - (THREAD_DTV): Likewise. - (TLS_INIT_TP_EXPENSIVE): Remove. - (TLS_INIT_TP): Set gbr register only. - (THREAD_SELF): New. - (INIT_THREAD_SELF): Likewise. - (NONTLS_INIT_TP): New. - * sysdeps/unix/sysv/linux/sh/pt-initfini.c (__fpscr_values): - Remove. - * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (PSEUDO): Add - SYSCALL_INST_PAD macro after DO_CALL. - (SINGLE_THREAD_P): Fix non-PIC and TLS case so to read the - correct variable. - * sysdeps/unix/sysv/linux/sh/vfork.S (__vfork): Branch to __fork - whenever libpthread.so is loaded. - -2003-02-08 Andreas Schwab <schwab@suse.de> - - * sysdeps/unix/sysv/linux/m68k/vfork.S: Branch to __fork whenever - libpthread.so is loaded. - -2003-02-07 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/i386/vfork.S: Make sure - __ASSUME_VFORK_SYSCALL is not defined if the kernel headers have - no __NR_vfork definition. - -2003-02-07 Jakub Jelinek <jakub@redhat.com> - - * tst-popen2.c: New test. - * Makefile (tests): Add tst-popen2. - * sysdeps/unix/sysv/linux/alpha/vfork.S (__vfork): Branch to __fork - whenever libpthread.so is loaded. - * sysdeps/unix/sysv/linux/i386/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/ia64/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/s390/s390-64/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S (__vfork): - Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/x86_64/vfork.S (__vfork): Likewise. - -2003-02-05 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/bits/libc-lock.h (__libc_once): Set control - variable for non-libpthread case to the same value the - pthread_once function would use. - -2003-02-03 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S (__vfork): If - BROKEN_SPARC_WDISP22, handle SHARED the same way as non-SHARED. - -2003-02-04 Andreas Jaeger <aj@suse.de> - - * sysdeps/unix/sysv/linux/hppa/pt-initfini.c: Do not use - multi-line strings. - -2003-01-30 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/s390/tls.h (TLS_INIT_TP): Return NULL, not 0. - -2003-01-30 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/alpha/tls.h (THREAD_GETMEM, THREAD_GETMEM_NC, - THREAD_SETMEM, THREAD_SETMEM_NC): Avoid warnings about unused self - variable. - * sysdeps/ia64/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, - THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. - * sysdeps/s390/s390-32/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, - THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. - * sysdeps/s390/s390-64/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, - THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. - * sysdeps/sh/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, - THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. - * sysdeps/sparc/sparc32/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, - THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. - * sysdeps/sparc/sparc64/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, - THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. - -2003-01-27 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * sysdeps/s390/s390-32/pt-machine.h (THREAD_SELF, INIT_THREAD_SELF): - Define TLS versions. - * sysdeps/s390/s390-64/pt-machine.h (THREAD_SELF, INIT_THREAD_SELF): - Likewise. - * sysdeps/s390/tls.h [HAVE_TLS_SUPPORT] (USE_TLS, TLS_INIT_TCB_SIZE, - TLS_INIT_TCB_ALIGN, TLS_TCB_SIZE, TLS_TCB_ALIGN, TLS_TCB_AT_TP, - INSTALL_DTV, INSTALL_NEW_DTV, GET_DTV, TLS_INIT_TP, THREAD_DTV): - Define. - * sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (PSEUDO): Use - branch with 32 bit offset. - * sysdeps/unix/sysv/linux/s390/s390-64/vfork.S: Likewise. - -2003-01-24 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/sparc/sparc32/pt-machine.h (__thread_self): Change to %g7, - as required by TLS ABI. - * sysdeps/sparc/sparc64/pt-machine.h (__thread_self): Likewise. - * sysdeps/sparc/tls.h [HAVE_TLS_SUPPORT] (USE_TLS, TLS_INIT_TCB_SIZE, - TLS_INIT_TCB_ALIGN, TLS_TCB_SIZE, TLS_TCB_ALIGN, TLS_TCB_AT_TP, - INSTALL_DTV, INSTALL_NEW_DTV, GET_DTV, TLS_INIT_TP, THREAD_DTV): - Define. - [HAVE_TLS_SUPPORT]: Include descr.h and sysdep.h. - * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Use %g7 - instead of %g6 for thread pointer. - * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: Likewise. - -2003-01-25 Guido Guenther <agx@sigxcpu.org> - - * sysdeps/unix/sysv/linux/mips/sysdep-cancel.h: New file. - * sysdeps/unix/sysv/linux/mips/Makefile: New file. - -2003-01-20 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * sysdeps/unix/sysv/linux/s390/s390-32/vfork.S: Avoid non pc relative - reference to __fork. - -2003-01-17 Richard Henderson <rth@redhat.com> - - * sysdeps/alpha/tls.h (tcbhead_t): Clarify second member. - (TLS_TCB_SIZE, TLS_TCB_ALIGN): Set for tcbhead_t. - (TLS_PRE_TCB_SIZE): New. - (TLS_INIT_TP, THREAD_SELF, INIT_THREAD_SELF): Update for - new ia64-style thread pointer layout. - (THREAD_GETMEM, THREAD_GETMEM_NC): New. - (THREAD_SETMEM, THREAD_SETMEM_NC): New. - * sysdeps/unix/sysv/linux/alpha/vfork.S: Don't tail-call to __fork - if !SHARED. - -2003-01-15 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/ia64/tls.h (tcbhead_t): Use the TLS ABI required layout - if USE_TLS only. - (NONTLS_INIT_TP): Revert last change. - * sysdeps/ia64/tcb-offsets.sym (MULTIPLE_THREADS_OFFSET): Define to - offsetof (tcbhead_t, multiple_threads) if USE_TLS not defined. - -2003-01-16 Jakub Jelinek <jakub@redhat.com> - - * pthread.c (_pthread_initialize_minimal): Use - GL(dl_tls_dtv_slotinfo_list) != NULL to check whether TLS has - been already initialized. - -2003-01-16 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/i386/tls.h (INIT_SYSINFO): Initialize head->sysinfo even - if not SHARED. - -2003-01-15 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/bits/libc-lock.h (__libc_lock_init, - __libc_lock_init_recursive): Initialize fields directly. - -2003-01-15 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/alpha/vfork.S (__vfork): Allow - __fork to be far away from __vfork ifndef SHARED. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S (__vfork): - Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S (__vfork): Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S (__vfork): Likewise. - Add a missing instruction. - * sysdeps/unix/sysv/linux/arm/vfork.S (__vfork): Conditionally - branch to __fork even if __NR_vfork is not defined. - -2003-01-14 Ulrich Drepper <drepper@redhat.com> - - * tst-cancel-wrappers.sh: Allow .__*_asynccancel functions names - as well. - -2003-01-14 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S: New file. - -2003-01-14 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/ia64/vfork.S (JUMPTARGET): Remove. - -2003-01-13 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c: Avoid - unterminated string literals. - * sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c: Likewise. - -2003-01-13 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h - (PSEUDO): Code reordering. Move CENABLE and CDISABLE literals from - PSEUDO_END to PSEUDO. - (PSEUDO_END): Remove. - (SINGLE_THREAD_P): Save an instruction. - * sysdeps/unix/sysv/linux/s390/s390-32/vfork.S (__vfork): Add missing - parameter to SINGLE_THREAD_P call. - * sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (PSEUDO): - Code reordering. - -2003-01-10 Andreas Schwab <schwab@suse.de> - - * sysdeps/unix/sysv/linux/m68k/vfork.S: New file. - -2003-01-10 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h (PSEUDO): Setup - backchain in pseudo_cancel. Minor code improvements. - * sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (PSEUDO): - Likewise. - -2003-01-10 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * sysdeps/unix/sysv/linux/s390/s390-32/vfork.S: New file. - * sysdeps/unix/sysv/linux/s390/s390-64/vfork.S: New file. - -2002-01-12 Franz Sirl <Franz.Sirl-kernel@lauterbach.com> - - * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: New file. - -2002-01-09 Richard Henderson <rth@redhat.com> - - * sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h: Assume only - ret follows pseudo, and thus avoid branch-to-branch in cancel - case. Use SYSCALL_ERROR_LABEL. - -2003-01-11 Philip Blundell <philb@gnu.org> - - * sysdeps/unix/sysv/linux/arm/vfork.S: New file. - * sysdeps/unix/sysv/linux/arm/sysdep-cancel.h (PSEUDO_RET): - Correctly unstack lr. - (UNDOARGS_5): Fix ordering of pushes and pops. - (SINGLE_THREAD_P_PIC): New. - (SINGLE_THREAD_P_INT): New. - (SINGLE_THREAD_P): Implement in terms of above. Restore lr if it - was stacked. - (PSEUDO): Use SINGLE_THREAD_P_INT. - -2003-01-11 Kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/unix/sysv/linux/sh/vfork.S: New file. - -2003-01-11 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/ia64/tls.h (tcbhead_t): Change into dtv_t *, void *. - [HAVE_TLS_SUPPORT] (USE_TLS, TLS_INIT_TCB_SIZE, TLS_INIT_TCB_ALIGN, - TLS_TCB_SIZE, TLS_PRE_TCB_SIZE, TLS_TCB_ALIGN, TLS_DTV_AT_TP, - INSTALL_DTV, INSTALL_NEW_DTV, GET_DTV, TLS_INIT_TP, THREAD_SELF, - INIT_THREAD_SELF): Define. - [HAVE_TLS_SUPPORT]: Include descr.h. - (NONTLS_INIT_TP): Point __thread_self at the end of dummy - struct _pthread_descr_struct. - * sysdeps/ia64/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, - THREAD_SETMEM, THREAD_SETMEM_NC): Define using THREAD_SELF, - not __thread_self. - * sysdeps/ia64/tcb-offsets.sym (MULTIPLE_THREADS_OFFSET): Adjust - computation. - * pthread.c (__pthread_initialize_minimal): Use tcbp, not self - for TCB pointer. - (__pthread_initialize_manager): Rename tcb to mgr. - Use tcbp for TCB pointer, if TLS_DTV_AT_TP set mgr to sizeof (struct - _pthread_descr) below tcbp, otherwise to tcbp. - * manager.c (pthread_handle_create): If TLS_DTV_AT_TP, set - new_thread to be below _dl_allocate_tls (). Adjust new_thread back - before freeing. Fix clone arguments if report_events and USE_TLS. - (pthread_free): Adjust th back before freeing. - -2003-01-10 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile: Moved to ... - * sysdeps/unix/sysv/linux/powerpc/Makefile: ...here. - * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: New File. - -2003-01-09 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/i386/vfork.S: New file. - * sysdeps/unix/sysv/linux/ia64/vfork.S: New file. - * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h - [__ASSEMBLER__] (SINGLE_THREAD_P): Remove trailing ;;. - * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: New file. - * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: New file. - * sysdeps/unix/sysv/linux/x86_64/vfork.S: New file. - * sysdeps/unix/sysv/linux/alpha/vfork.S: New file. - * tst-popen.c: New test. - * Makefile (tests): Add tst-popen. - -2003-01-06 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/sigwait.c (do_sigwait): Add - INTERNAL_SYSCALL_DECL, add err argument to INTERNAL_SYSCALL* macros. - -2003-01-06 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h (PSEUDO): Use - PSEUDO_PREPARE_ARGS. Fix branch condition after SINGLE_THREAD_P. - -2003-01-06 Philip Blundell <philb@gnu.org> - - * sysdeps/unix/sysv/linux/arm/sysdep-cancel.h: New file. - -2003-01-06 Jakub Jelinek <jakub@redhat.com> - - * internals.h (LIBC_CANCEL_HANDLED): Define. - * sysdeps/unix/sysv/linux/sigwait.c (LIBC_CANCEL_HANDLED): Add. - * signals.c (LIBC_CANCEL_HANDLED): Add. - * pt-system.c (LIBC_CANCEL_HANDLED): Add. - * tst-cancel-wrappers.sh: Remove all exceptions. - - * sysdeps/unix/sysv/linux/alpha/Makefile: New file. - -2003-01-05 Andreas Schwab <schwab@suse.de> - - * sysdeps/m68k/Makefile: New file, use -fPIC for nonshared - objects. - - * sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h (SINGLE_THREAD_P): - Fix for PIC. - (CENABLE): Likewise. - (CDISABLE): Likewise. - -2003-01-05 Ulrich Drepper <drepper@redhat.com> - - * tst-cancel-wrappers.sh: Invoke gawk not awk since we use GNU awk - features. Reported by Marijn Ros <marijn@mad.scientist.com>. - - * Makefile (libc.so-no-z-defs): Define to yes. - -2003-01-05 Kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/sh/tls.h: Include dl-sysdep.h and stdint.h. - (tcbhead_t): Add multiple_threads member. - (TLS_INIT_TP_EXPENSIVE): Define. - * sysdeps/unix/sysv/linux/sh/pt-initfini.c: Don't use multi-line - strings. Remove unused code. - * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: New file. - -2003-01-04 Franz Sirl <Franz.Sirl-kernel@lauterbach.com> - - * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: New file. - * sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile: New file. - -2003-01-04 Jakub Jelinek <jakub@redhat.com> - - * internals.h (LIBC_THREAD_GETMEM, LIBC_THREAD_SETMEM): Define - even if NOT_IN_libc is defined. - -2003-01-05 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h: New file. - * sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h: New file. - * sysdeps/s390/Makefile: New file. - * sysdeps/s390/tcb-offsets.sym: New file. - * sysdeps/s390/tls.h: New file. - -2003-01-03 Richard Henderson <rth@redhat.com> - - * sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h: New file. - -2003-01-03 Andreas Jaeger <aj@suse.de> - - * sysdeps/pthread/bits/libc-tsd.h: Declare weak_extern functions. - -2003-01-03 Jakub Jelinek <jakub@redhat.com> - - * Makefile ($(objpfx)libpthread.so): Depend on ld.so. - -2003-01-02 Ulrich Drepper <drepper@redhat.com> - - * tst-cancel-wrappers.sh: Exclude sigwait.c as well, it does not have - cancellation tests. - -2003-01-02 Jakub Jelinek <jakub@redhat.com> - - * internals.h (struct pthread_functions): Rename - ptr_pthread_cond_* fields to ptr___pthread_cond_*. - * pthread.c (pthread_functions): Adjust. - * forward.c: Export both pthread_cond_*@@GLIBC_2.3.2 and - pthread_cond_*@GLIBC_2.0 compatibility symbols. - * Versions [libc] (GLIBC_2.3.2): Export pthread_cond_broadcast, - pthread_cond_destroy, pthread_cond_init, pthread_cond_signal - and pthread_cond_wait. - - * sysdeps/pthread/bits/pthreadtypes.h (__pthread_cond_align_t): New - type. - (pthread_cond_t): Add __align member, shorten __padding. - * sysdeps/pthread/pthread.h (PHTREAD_COND_INITIALIZER): Initialize - __padding and __align too. - - * sysdeps/pthread/bits/libc-lock.h (__libc_maybe_call2): Add - __builtin_expect. - * sysdeps/pthread/sigaction.c: New file. - * sysdeps/unix/sysv/linux/raise.c: New file. - * sysdeps/unix/sysv/linux/sigwait.c: New file. - * sysdeps/unix/sysv/linux/fork.c (__pthread_fork): Protect - weak_extern with #ifndef SHARED. - * sysdeps/unix/sysv/linux/jmp-unwind.c (__pthread_cleanup_upto): - Likewise. - * signals.c (__sigaction): Renamed to... - (__pthread_sigaction): ... this. - (__sigaction): New strong alias, #ifdef SHARED only. - (sigaction): Protect with #ifdef SHARED. - (sigwait): Renamed to... - (__pthread_sigwait): ... this. - (sigwait): New strong alias, #ifdef SHARED only. - (raise): Renamed to... - (__pthread_raise): ... this. - (raise): New strong alias, #ifdef SHARED only. - * internals.h (__pthread_sigaction, __pthread_sigwait, - __pthread_raise): New prototypes. - (struct pthread_functions): Add ptr_pthread_sigaction, - ptr_pthread_sigwait, ptr_pthread_raise. - * pthread.c (pthread_functions): Renamed to... - (__pthread_functions): ... this. No longer static, no longer - SHARED only. Initialize ptr_pthread_sigaction, ptr_pthread_sigwait - and ptr_pthread_raise. - [SHARED] (ptr_pthread_functions): Change to &__pthread_functions. - * libc-cancellation.c (__pthread_thread_self): Remove weak_extern. - * ptfork.c (__fork, __vfork): Protect with #ifdef SHARED. - * ptlongjmp.c (siglongjmp, longjmp): Protect with #ifdef SHARED. - - * Makefile (tests, tests-static): Add tst-cancel-static. - * tst-cancel-static.c: New test. - -2003-01-02 Jakub Jelinek <jakub@redhat.com> - - * Makefile (CFLAGS-pthread_atfork.c): Add -DNOT_IN_libc. - -2003-01-02 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/bits/pthreadtypes.h (pthread_cond_t): Add padding. - * condvar.c: Add symbol versioning. The compatibility versions - are the same as the change in the interface does not effect this - implementation. - * Versions [libpthread]: Add definitions for new pthread_cond_* - interfaces for version GLIBC_2.3.2. - -2002-12-31 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/fork.h: Add libc_hidden_proto for - __register_atfork. - * sysdeps/unix/sysv/linux/register-atfork.c: Add libc_hidden_def - for __register_atfork. - -2002-12-31 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/i386/i686/pt-machine.h: Use __ASSEMBLER__ instead of - ASSEMBLER test macro. - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise. - * sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise. - - * sysdeps/pthread/errno-loc.c (__errno_location): Add - libc_hidden_def. - * sysdeps/pthread/herrno-loc.c (__h_errno_location): Likewise. - * sysdeps/pthread/res-state.c (__res_state): Likewise. - * sysdeps/unix/sysv/linux/allocrtsig.c (__libc_current_sigrtmin, - __libc_current_sigrtmax): Likewise. - * Versions [libc] (GLIBC_PRIVATE): Remove __libc_internal_tsd_get, - __libc_internal_tsd_set, __libc_internal_tsd_address, - __libc_alloca_cutoff. - [libpthread] (GLIBC_PRIVATE): Remove __libc_internal_tsd_get, - __libc_internal_tsd_set, __libc_internal_tsd_address. - - * sysdeps/pthread/list.h: Remove assert.h include. - * sysdeps/unix/sysv/linux/fork.c: Include <fork.h>, not "fork.h". - - * sysdeps/pthread/list.h: New file. - * sysdeps/unix/sysv/linux/jmp-unwind.c: New file. - * sysdeps/unix/sysv/linux/fork.c: New file. - * sysdeps/unix/sysv/linux/fork.h: New file. - * sysdeps/unix/sysv/linux/ia64/fork.h: New file. - * sysdeps/unix/sysv/linux/sparc/fork.h: New file. - * sysdeps/unix/sysv/linux/register-atfork.c: New file. - * sysdeps/unix/sysv/linux/unregister-atfork.c: New file. - * sysdeps/unix/sysv/linux/Makefile: New file. - * sysdeps/unix/sysv/linux/Versions: New file. - * ptlongjmp.c (pthread_cleanup_upto): Rename to... - (__pthread_cleanup_upto): ...this. Add targetframe argument, - use it instead of currentframe. No longer static. - (siglongjmp, longjmp): Remove pthread_cleanup_upto calls. - * internals.h (__pthread_cleanup_upto, __pthread_fork): New prototypes. - (struct pthread_functions): Add ptr_pthread_fork, - ptr_pthread_cleanup_upto. - * pthread.c (pthread_functions): Initialize ptr_pthread_fork and - ptr_pthread_cleanup_upto. - * ptfork.c: Include fork.h. - (struct handler_list, struct handler_list_block): Remove. - (pthread_atfork_lock, pthread_atfork_prepare, pthread_atfork_parent, - pthread_atfork_child): Remove. - (pthread_insert_list, __pthread_atfork, pthread_call_handlers): Remove. - (__pthread_fork): New function. - (__fork, __vfork): Call __libc_fork. - * Makefile (libpthread-routines): Add old_pthread_atfork. - (libpthread-nonshared): Add pthread_atfork. - (others): Depend on $(objpfx)libpthread_nonshared.a. - ($(objpfx)libpthread_nonshared.a): New rule. - (install): Depend on $(inst_libdir)/libpthread.so. - ($(inst_libdir)/libpthread.so, $(inst_libdir)/libpthread_nonshared.a): - New rules. - (tests): Depend on libpthread_nonshared.a too. - * old_pthread_atfork.c: New file. - * pthread_atfork.c: New file. - * Makeconfig (shared-thread-library): Include libpthread_nonshared.a - too. - -2002-12-30 Jakub Jelinek <jakub@redhat.com> - - * forward.c: Make all functions available by default again. It - caused too much trouble. - * internals.h (struct pthread_functions): Rename ptr_pthread_exit - and ptr_pthread_attr_init_2_* to ptr___pthread_exit and - ptr___pthread_attr_init_2_*. - * pthread.c (pthread_functions): Adjust. - -2002-12-28 Jakub Jelinek <jakub@redhat.com> - - * libc_pthread_init.c (__libc_pthread_init): Remove - MULTIPLE_THREADS_OFFSET check. - * sysdeps/i386/tls.h: Include tcb-offsets.h in assembler. - (SYSINFO_OFFSET): Remove. - * sysdeps/i386/Makefile [csu] (gen-as-const-headers): Add - tcb-offsets.sym. - * sysdeps/i386/tcb-offsets.sym: New file. - * sysdeps/pthread/tcb-offsets.h: New file. - * sysdeps/sparc/sparc32/tls.h: Removed. - * sysdeps/sparc/sparc64/tls.h: Move... - * sysdeps/sparc/tls.h: ...here. Include tcb-offsets.h in assembler. - * sysdeps/sparc/Makefile: New file. - * sysdeps/sparc/tcb-offsets.sym: New file. - * sysdeps/ia64/tls.h: Include tcb-offsets.h in assembler. - * sysdeps/ia64/Makefile: New file. - * sysdeps/ia64/tcb-offsets.sym: New file. - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h - (MULTIPLE_THREADS_OFFSET): Remove. - Replace defined MULTIPLE_THREADS_OFFSET - with defined FLOATING_STACKS && USE___THREAD. - * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h - (MULTIPLE_THREADS_OFFSET): Remove. - * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h - (MULTIPLE_THREADS_OFFSET): Remove. - * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h - (MULTIPLE_THREADS_OFFSET): Remove. - * pthread.c (__pthread_initialize_manager): Remove - MULTIPLE_THREADS_OFFSET cbeck. - - * tst-cancel-wrappers.sh: Add line continuations. - -2002-12-27 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/bits/libc-tsd.h: Include linuxthreads/descr.h - and bits/libc-lock.h. - (__libc_internal_tsd_get, __libc_internal_tsd_set, - __libc_internal_tsd_address): Remove. - (__pthread_internal_tsd_address, __pthread_internal_tsd_get, - __pthread_internal_tsd_set): New weak_externs. - (__libc_tsd_address, __libc_tsd_get, __libc_tsd_set): Define - using __libc_maybe_call2. - (__libc_tsd_key_t): Move to ... - * descr.h (__libc_tsd_key_t): ...here. - Remove bits/libc-tsd.h include. - * sysdeps/pthread/errno-loc.c: New file. - * sysdeps/pthread/herrno-loc.c: New file. - * sysdeps/pthread/res-state.c: New file. - * libc-cancellation.c (THREAD_GETMEM, THREAD_SETMEM): Remove. - (__libc_enable_asynccancel, __libc_disable_asynccancel): Use - thread_self unconditionally. Use LIBC_THREAD_[SG]ETMEM instead - of THREAD_[SG]ETMEM. - * specific.c (libc_internal_tsd_set): Renamed to... - __pthread_internal_tsd_set. Remove static. - (libc_internal_tsd_get): Renamed to... - __pthread_internal_tsd_get. Remove static. - (libc_internal_tsd_address): Renamed to... - __pthread_internal_tsd_address. Remove static. - (__libc_internal_tsd_set, __libc_internal_tsd_get, - __libc_internal_tsd_address, __libc_alloca_cutoff): Remove. - * internals.h [!NOT_IN_libc] (LIBC_THREAD_GETMEM, LIBC_THREAD_SETMEM): - Define. - (__pthread_internal_tsd_set, __pthread_internal_tsd_get, - __pthread_internal_tsd_address): New prototypes. - (struct pthread_functions): Add - ptr_pthread_internal_tsd_([sg]et|address) fields. - [!NOT_IN_libc && !FLOATING_STACKS] (thread_self): Define. - * pthread.c (pthread_functions) [!USE_TLS && !HAVE___THREAD]: - Initialize ptr_pthread_internal_tsd_([sg]et|address) fields. - * Versions (libpthread): Remove __libc_alloca_cutoff@GLIBC_PRIVATE. - * alloca_cutoff.c: New file. - * no-tsd.c: Removed. - * Makefile (routines): Remove no-tsd. Add alloca_cutoff. - * pt-system.c (system): Remove cancellation handling. - * tst-cancel-wrappers.sh: Allow pt-system.o* to not use the - cancellation routines. - - * sysdeps/i386/tls.h: Include dl-sysdep.h and stdint.h. - (tcbhead_t): Add sysinfo field. - (SYSINFO_OFFSET, INIT_SYSINFO): Define. - (TLS_INIT_TP): Use INIT_SYSINFO. - * sysdeps/unix/sysv/linux/i386/dl-sysdep.h: New file. - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h - (MULTIPLE_THREADS_OFFSET): Adjust. - * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h - (MULTIPLE_THREADS_OFFSET): Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h - (MULTIPLE_THREADS_OFFSET): Likewise. - * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h - (MULTIPLE_THREADS_OFFSET): Likewise. - * descr.h: Include stdint.h. - (struct _pthread_descr_struct): Add p_header.data.sysinfo field. - -2002-12-22 Jakub Jelinek <jakub@redhat.com> - - * libc_pthread_init.c: Include stdlib.h. - * sysdeps/i386/tls.h (tcbhead_t): Add multiple_threads member. - (TLS_INIT_TP_EXPENSIVE): Define. - * sysdeps/pthread/bits/libc-lock.h (__libc_maybe_call, - __libc_maybe_call2): In _LIBC check SHARED define. - * sysdeps/ia64/tls.h: New file. - * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h: New file. - * sysdeps/unix/sysv/linux/ia64/Makefile: New file. - * sysdeps/x86_64/tls.h (TLS_INIT_TP_EXPENSIVE): Define. - * sysdeps/sparc/sparc32/tls.h: New file. - * sysdeps/sparc/sparc64/tls.h: New file. - * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: New file. - * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: New file. - * Makefile (tests): Add tst-cancel[1-6]. - (tests-reverse): Add tst-cancel5. - Link libc.so before libpthread.so for tests-reverse. - * tst-cancel1.c: New file. - * tst-cancel2.c: New file. - * tst-cancel3.c: New file. - * tst-cancel4.c: New file. - * tst-cancel5.c: New file. - * tst-cancel6.c: New file. - -2002-12-27 Andreas Schwab <schwab@suse.de> - - * sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h: New file. - -2002-12-22 Roland McGrath <roland@redhat.com> - - * Makefile (omit-deps): Add $(unix-syscalls:%=ptw-%). - -2002-12-21 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (init_rtsigs): Remove incomplete __builtin_expect. - Reported by Art Hass <ahaas@airmail.net>. - -2002-12-19 Jakub Jelinek <jakub@redhat.com> - - * forward.c (pthread_attr_init_2_0, pthread_attr_init_2_1): - Use return 0 as 6th argument to FORWARD4. - -2002-12-18 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/i386/useldt.h (FLOATING_STACKS, ARCH_STACK_MAX_SIZE): Only - define if __ASSUME_LDT_WORKS > 0. - * libc-cancellation.c (THREAD_GETMEM, THREAD_SETMEM): Redefine to - struct member access if !FLOATING_STACKS. - * sysdeps/pthread/flockfile.c (flockfile): Change into weak alias. - -2002-12-18 Jakub Jelinek <jakub@redhat.com> - - * internals.h (__pthread_thread_self): New prototype. - (struct pthread_functions): Add ptr_pthread_thread_self field. - * pthread.c (pthread_functions): Initialize ptr_pthread_thread_self. - (__pthread_thread_self): New function. - * libc-cancellation.c (__pthread_thread_self): Add weak_extern. - (__libc_enable_asynccancel, __libc_disable_asynccancel): Don't - use thread_self() directly if not FLOATING_STACKS. - -2002-12-18 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/x86_64/pt-machine.h: Guard most of the header - with #ifndef __ASSEMBLER__. - * pthread.c (pthread_functions): Use SHLIB_COMPAT around - pthread_attr_init_2_0 use. - -2002-12-17 Jakub Jelinek <jakub@redhat.com> - - * wrapsyscall.c: Removed. - * weaks.c: Removed. - * Makefile (distribute): Add tst-cancel-wrappers.sh. - (routines): Remove weaks. Add forward, - libc_pthread_init, libc-cancellation. - (shared-only-routines): Remove weaks. Add forward. - (libpthread-routines): Remove wrapsyscall. - Add ptw-write, ptw-read, ptw-close, ptw-fcntl, ptw-accept, - ptw-connect, ptw-recv, ptw-recvfrom, ptw-recvmsg, ptw-send, - ptw-sendmsg, ptw-sendto, ptw-fsync, ptw-lseek, ptw-lseek64, - ptw-llseek, ptw-msync, ptw-nanosleep, ptw-open, ptw-open64, - ptw-pause, ptw-pread, ptw-pread64, ptw-pwrite, ptw-pwrite64, - ptw-tcdrain, ptw-wait, ptw-waitpid, pt-system, pt-allocrtsig. - (libpthread-shared-only-routines): Add pt-allocrtsig. - (tests): Depend on $(objpfx)tst-cancel-wrappers.out. - ($(objpfx)tst-cancel-wrappers.out): New rule. - * sysdeps/pthread/bits/libc-lock.h: Include linuxthreads/internals.h - if in libc. - (__libc_maybe_call): In libpthread.* don't check for existance - of the function. - (__libc_maybe_call2): Define. - (__libc_lock_init, __libc_lock_fini, __libc_lock_lock, - __libc_lock_trylock, __libc_lock_unlock): Use it. - * sysdeps/pthread/flockfile.c: New file. - * sysdeps/pthread/ftrylockfile.c: New file. - * sysdeps/pthread/funlockfile.c: New file. - * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: New file. - * sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: New file. - * sysdeps/unix/sysv/linux/allocrtsig.c: New file. - * libc-cancellation.c: New file. - * forward.c: New file. - * libc_pthread_init.c: New file. - * pt-system.c: New file. - * pthread.c: Remove locale.h. - (__pthread_manager_thread): Initialize multiple_threads. - (__pthread_multiple_threads): Declare. - (pthread_functions): New variable. - (__pthread_initialize_minimal): Remove __uselocale call. - Call __libc_pthread_init. - (__pthread_initialize_manager): Initialize __pthread_multiple_threads, - initial thread's multiple_threads and __libc_multiple_threads. - Check MULTIPLE_THREADS_OFFSET value. Initialize manager thread's - multiple_threads. - (pthread_setschedparam, pthread_getschedparam): Rename to __ - prefixed variants. Add strong_alias. - (current_rtmin, current_rtmax, __libc_current_sigrtmin, - __libc_current_sigrtmax, __libc_allocate_rtsig): Remove. - (init_rtsigs): Use __libc_current_sigrtmin_private. - (pthread_initialize): Only call init_rtsigs if - !__ASSUME_REALTIME_SIGNALS. - (__pthread_require_wrappers, __pthread_require_lockfile): Remove. - * internals.h (__pthread_attr_destroy, __pthread_attr_setdetachstate, - __pthread_attr_getdetachstate, __pthread_attr_setschedparam, - __pthread_attr_getschedparam, __pthread_attr_setschedpolicy, - __pthread_attr_getschedpolicy, __pthread_attr_setinheritsched, - __pthread_attr_getinheritsched, __pthread_attr_setscope, - __pthread_attr_getscope, __pthread_cond_init, - __pthread_cond_destroy, __pthread_cond_wait, - __pthread_cond_signal, __pthread_cond_broadcast, - __pthread_condattr_init, __pthread_condattr_destroy, - __pthread_equal, __pthread_getschedparam, - __pthread_setschedparam, __pthread_setcancelstate, - __pthread_setcanceltype, __pthread_enable_asynccancel, - __libc_enable_asynccancel, __libc_pthread_init): New prototype. - (__pthread_mutex_init, __pthread_mutex_destroy, - __pthread_mutex_lock, __pthread_mutex_unlock, - __pthread_mutex_trylock): Likewise. - Add hidden_proto. - (struct pthread_functions): New type. - (__libc_pthread_functions): New variable. - (LIBC_CANCEL_ASYNC, LIBC_CANCEL_RESET): Define. - * descr.h (struct _pthread_descr_struct): Add - p_header.data.multiple_threads field. - * manager.c (pthread_handle_create): Initialize multiple_threads. - * cancel.c (__pthread_enable_asynccancel, - __pthread_disable_asynccancel): New functions. - (__pthread_provide_wrappers): Remove. - (pthread_setcancelstate, pthread_setcanceltype): Rename to __ - prefixed variants. Add strong_alias. - * condvar.c (pthread_cond_init, pthread_cond_destroy, - pthread_cond_wait, pthread_cond_signal, pthread_cond_broadcast, - pthread_condattr_init, pthread_condattr_destroy): Likewise. - * join.c (pthread_exit): Likewise. - * attr.c (pthread_attr_destroy, pthread_attr_setdetachstate, - pthread_attr_getdetachstate, pthread_attr_setschedparam, - pthread_attr_getschedparam, pthread_attr_setschedpolicy, - pthread_attr_getschedpolicy, pthread_attr_setinheritsched, - pthread_attr_getinheritsched, pthread_attr_setscope, - pthread_attr_getscope): Likewise. - * mutex.c (__pthread_mutex_init, __pthread_mutex_destroy, - __pthread_mutex_lock, __pthread_mutex_unlock, - __pthread_mutex_trylock): Add hidden_def. - * Versions (libc): Add __libc_pthread_init, - __libc_current_sigrtmin_private, __libc_current_sigrtmax_private, - __libc_allocate_rtsig_private @@GLIBC_PRIVATE. - * lockfile.c: Remove some USE_IN_LIBIO guards. - (__pthread_provide_lockfile): Remove. - * pt-allocrtsig.c: New file. - * tst-cancel-wrappers.sh: New test. - -2002-12-15 Ulrich Drepper <drepper@redhat.com> - - * Versions [libpthread: GLIBC_2.3.2]: Remove creat, poll, pselect, - readv, select, sigpause, sigsuspend, sigwaitinfo, waitid, writev. - * wrapsyscall.c: Remove creat, poll, pselect, readv, select, - sigpause, sigsuspend, sigwaitinfo, waitid, and writev wrappers. - -2002-12-10 Ulrich Drepper <drepper@redhat.com> - - * wrapsyscall.c (CANCELABLE_SYSCALL): Don't define function as - weak. There is no reason for that. - (CANCELABLE_SYSCALL_VA): Likewise. - -2002-12-09 Ulrich Drepper <drepper@redhat.com> - - * wrapsyscall.c: Add wrappers for creat, poll, pselect, readv, select, - sigpause, __xpg_sigpause, sigsuspend, sigwaitinfo, waitid, and writev. - * Versions: Export creat, poll, pselect, readv, select, sigpause, - __xpg_sigpause, sigsuspend, sigwaitinfo, waitid, and writev from - libpthread in version GLIBC_2.3.2. - -2002-12-06 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/bits/libc-lock.h: Define __rtld_lock_* macros. - -2002-12-05 Roland McGrath <roland@redhat.com> - - * pthread.c (__pthread_initialize_minimal) - [USE_TLS && SHARED && !USE___THREAD]: Initialize TLS and set up the - TCB if the dynamic linker didn't do it at startup. - - * sysdeps/i386/tls.h (TLS_INIT_TP): Make it return zero or an error - string. - (TLS_DO_SET_THREAD_AREA, TLS_DO_MODIFY_LDT, TLS_SETUP_GS_SEGMENT): - Submacros updated. - * sysdeps/x86_64/tls.h (TLS_INIT_TP): Likewise. - * sysdeps/alpha/tls.h (TLS_INIT_TP): Likewise (always zero). - -2002-12-03 Roland McGrath <roland@redhat.com> - - * pthread.c (pthread_initialize) [SHARED]: Copy dl_error_tsd value - from dynamic linker internal cell to new libc cell. - -2002-11-28 Roland McGrath <roland@redhat.com> - - * tst-context.c: #define IS_IN_libpthread around #include <tls.h> - before other headers, so FLOATING_STACKS is not defined wrongly. - - * sysdeps/i386/tls.h [!IS_IN_libpthread]: Enable TLS support - even if [! FLOATING_STACKS]. - (TLS_DO_MODIFY_LDT_KERNEL_CHECK): New macro. - If not under [__ASSUME_LDT_WORKS > 0], then do a runtime check of - dl_osversion >= 2.3.99 and fatal if not. - (TLS_DO_MODIFY_LDT): Use it. - -2002-11-28 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define macros which - require it to 200112L. Remove _POSIX_POLL and _POSIX_SELECT. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - -2002-11-19 Ulrich Drepper <drepper@redhat.com> - - * Versions (libc: GLIBC_2.0): Remove names of functions which are - not defined in libc. - * Makefile (shared-only-routines): Add weaks. - * weaks.c: Remove functions which are not exported from libc.so. - -2002-11-14 Roland McGrath <roland@redhat.com> - - * libc-tsd.c: New file. - * Makefile (distribute): Add it. - (libc-link.so): New variable. - ($(objpfx)libpthread.so): Depend on that instead of libc.so file name. - (libc-ok-for-link): New variable. - [$(versioning) = yes]: Include $(common-objpfx)tls.make and define - libc-ok-for-link to $(use-thread). - [$(libc-ok-for-link) = no] - (libc-link.so): Set to $(objpfx)libc.so, not $(common-objpfx)libc.so. - ($(objpfx)libc_pic_lite.a,$(objpfx)libc_pic_lite.os, $(objpfx)libc.so): - New targets. - (generated): Append them. - (extra-objs): Append libc-tsd.os. - - * libc-tls-loc.c: New file. - * Makefile (libpthread-routines): Add it. - -2002-11-14 Andreas Schwab <schwab@suse.de> - - * sysdeps/unix/sysv/linux/ia64/pt-initfini.c: Fix unterminated - string. - -2002-11-13 Roland McGrath <roland@redhat.com> - - * Examples/ex6.c (main): Improve error reporting. - -2002-11-04 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/Makefile: Compile pthread.c and sighandler.c with - -fno-omit-frame-pointer. Patch by Andreas Steinmetz <ast@domdv.de>. - - * sysdeps/i386/useldt.h [PIC] (USETLS_LOAD_EBX): Use correct input - register number. - (DO_SET_THREAD_AREA): Mark asm output specifiers correctly. - -2002-10-22 Jakub Jelinek <jakub@redhat.com> - - * manager.c (pthread_start_thread): Call __uselocale even - if [! SHARED]. Patch by Leon Kanter <leon@geon.donetsk.ua>. - -2002-10-17 Roland McGrath <roland@redhat.com> - - * Makefile (unload): Don't link in libpthread.so. - ($(objpfx)unload.out): Do depend on it. - * unload.c (main): Improve error reporting. - -2002-10-09 Roland McGrath <roland@redhat.com> - - * sysdeps/pthread/bits/libc-lock.h (__libc_maybe_call): New macro. - Under [__PIC__], call the function via the pointer fetched for - comparison rather than a call by name that uses the PLT. - (__libc_lock_init, __libc_rwlock_init, __libc_lock_fini) - (__libc_rwlock_fini, __libc_lock_lock, __libc_rwlock_rdlock) - (__libc_rwlock_wrlock, __libc_lock_trylock, __libc_rwlock_tryrdlock) - (__libc_rwlock_trywrlock, __libc_lock_unlock, __libc_rwlock_unlock) - (__libc_key_create, __libc_getspecific, __libc_setspecific) - (__libc_atfork): Use it. - - * pthread.c [SHARED] (__libc_dl_error_tsd): New function. - (pthread_initialize) [SHARED]: Set _dl_error_catch_tsd to that. - * Versions (libc: GLIBC_PRIVATE): Add __libc_dl_error_tsd. - (ld: GLIBC_PRIVATE): Set removed. - -2002-10-11 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/execve.c: New file. - -2002-10-09 Jakub Jelinek <jakub@redhat.com> - - * no-tsd.c: Include stdlib.h. - -2002-10-07 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/allocalim.h: New file. - * descr.h (struct _pthread_descr_struct): Add p_alloca_cutoff - field. - * manager.c (__pthread_allocate_stack): Add out_stacksize argument. - Pass stack size to caller. - (pthread_handle_create): Set p_alloca_cutoff. - * pthread.c (__pthread_initial_thread): Use C99 designated - initializers. Set p_alloca_cutoff. - (__pthread_manager_thread): Likewise. - (__pthread_initialize_minimal) [USE_TLS]: Set p_alloca_cutoff - for initial thread. - (__pthread_init_max_stacksize): Possibly decrease p_alloca_cutoff - for initial thread. - (__pthread_initialize_manager) [USE_TLS]: Set p_alloca_cutoff - for manager thread. - * specific.c (__libc_alloca_cutoff): New function. - * no-tsd.c (__libc_alloca_cutoff): New function. - * Versions: Export __libc_alloca_cutoff@@GLIBC_PRIVATE from libc - and libpthread. - -2002-10-02 Kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/sh/pt-machine.h: Make C code ifndef'ed with __ASSEMBLER__. - * sysdeps/sh/tls.h: Likewise. - * sysdeps/unix/sysv/linux/sh/smp.h: New file. - -2002-09-29 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/tst-timer.c (main): Clear - SIGEV2.sigev_notify_attributes. - -2002-09-29 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/useldt.h (DO_SET_THREAD_AREA): Don't use - INLINE_SYSCALL for set_thread_area syscall. - -2002-09-28 Roland McGrath <roland@redhat.com> - - * pthread.c (__pthread_reset_main_thread) [FLOATING_STACKS]: - Don't call setrlimit, since we did no prior bogon we need to undo. - -2002-09-27 Roland McGrath <roland@redhat.com> - - * sysdeps/x86_64/tls.h [__ASSEMBLER__]: Don't include <pt-machine.h>. - -2002-09-24 Roland McGrath <roland@redhat.com> - - * sysdeps/x86_64/tls.h: New file. - -2002-09-23 Roland McGrath <roland@redhat.com> - - * Examples/ex13.c (dump_mut): int -> size_t for counter. - -2002-09-18 Bruno Haible <bruno@clisp.org> - - * Examples/ex10.c (thread): Fail if pthread_mutex_timedlock() returns - an unexpected error code. - - * internals.h (__pthread_message): Add const to first parameter type. - * pthread.c (__pthread_message): Likewise. - - * sysdeps/unix/sysv/linux/configure: Moved to ../sysdeps/pthread. - -2002-09-17 Roland McGrath <roland@redhat.com> - - * sysdeps/i386/tls.h (TLS_DO_MODIFY_LDT, TLS_DO_SET_THREAD_AREA): - Set the descriptor limit to the full 4GB, so %gs:OFFSET works for any - offset (positive or negative) relative to the thread struct. - * sysdeps/i386/useldt.h (DO_MODIFY_LDT, DO_SET_THREAD_AREA): Likewise. - -2002-09-12 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/sparc/sparc64/Makefile: Move... - * sysdeps/unix/sysv/linux/sparc/Makefile: ...here. - Replace /usr/lib/crt[in].o with crt[in].o too. - -2002-09-11 Steven Munroe <sjmunroe@us.ibm.com> - - * sysdeps/powerpc/powerpc64/pt-machine.h: New file. - -2002-09-04 Bruno Haible <bruno@clisp.org> - - * pthread.c: Include <sys/time.h>. - (is_smp_system): Move to sysdeps/unix/sysv/linux/smp.h. - * sysdeps/unix/sysv/linux/smp.h: New file, extracted from pthread.c. - * Makefile (distribute): Add smp.h to the list. - -2002-09-04 Bruno Haible <bruno@clisp.org> - - * sysdeps/alpha/pt-machine.h: Choose different include file location - on non-Linux platforms. - - * wrapsyscall.c (PROMOTE_INTEGRAL_TYPE): New macro. - (open, open64): Change va_arg argument type to the integral type to - which mode_t promotes. - - * sysdeps/pthread/tst-timer.c (main): Don't assume anything about - the structure of 'struct sigevent'. - - * errno.c (__errno_location, __h_errno_location, __res_state): - Use prototype function definitions. - -2002-07-29 Steven Munroe <sjmunroe@us.ibm.com> - - * shlib-versions: Set libpthread version to 2.3 for powerpc64. - * sysdeps/powerpc/pt-machine.h: moved to... - * sysdeps/powerpc/powerpc32/pt-machine.h: ...here - * sysdeps/powerpc/powerpc64/pt-machine.h: New file. - -2002-09-02 Roland McGrath <roland@redhat.com> - - * sysdeps/powerpc/Makefile (CFLAGS-pt-initfini.s): New variable. - -2002-09-01 Roland McGrath <roland@redhat.com> - - * sysdeps/pthread/bits/libc-tsd.h (enum __libc_tsd_key_t): Add new keys - CTYPE_B, CTYPE_TOLOWER, CTYPE_TOUPPER. - - * sysdeps/pthread/bits/libc-tsd.h (__libc_tsd_address): New macro. - (__libc_internal_tsd_address): Declare it. - * Versions (libc, ld, libpthread: GLIBC_PRIVATE): Add - __libc_internal_tsd_address. - * specific.c (libc_internal_tsd_address): New function. - (__libc_internal_tsd_address): New variable. - * no-tsd.c (__libc_internal_tsd_address): New variable. - -2002-08-31 Ulrich Drepper <drepper@redhat.com> - - * Makefile: Don't use rule for crt%.o, spell it out as rules for - crti.o and crtn.o. - -2002-08-30 Roland McGrath <roland@redhat.com> - - * Makefile (extra-objs, omit-deps): Add crtn. - ($(objpfx)libpthread.so): Depend on $(objpfx)crtn.o. - ($(objpfx)libpthread.so: +postinit): Append $(objpfx)crtn.o. - ($(objpfx)crtn.S): New target. - ($(objpfx)crt%.o): Pattern rule replaces crti.o target. - (generated): Add crtn.S. - - * sysdeps/unix/sysv/linux/x86_64/Makefile ($(objpfx)specs): Massage - crtn.o pathname too. - -2002-08-30 Jakub Jelinek <jakub@redhat.com> - - * pthread.c (__pthread_initialize_minimal): Call __uselocale even - if [! SHARED]. - -2002-08-30 Roland McGrath <roland@redhat.com> - - * tst-static-locale.c: New file. - * Makefile (tests, tests-static): Add it. - -2002-04-24 Steven Munroe <sjmunroe@us.ibm.com> - - * spinlock.c (__pthread_lock): Fix spurious wakeup - handling. Don't clear lowest bit of list pointer as sign the thread - is still on the wait list. Don't restart after spurious wakeup - with spinning to get the lock. - (__pthread_unlock): Take set lowest bit into account when handling - pointer to list elements. - Patch by Steve Munroe <sjmunroe@us.ibm.com>. - -2002-08-28 Roland McGrath <roland@redhat.com> - - * sysdeps/pthread/timer_routines.c (thread_func): Fix type in cast. - -2002-08-28 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/hppa/aio_cancel.c: New file. - * sysdeps/unix/sysv/linux/sparc/aio_cancel.c: New file. - * sysdeps/unix/sysv/linux/alpha/aio_cancel.c: New file. - -2002-08-28 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/timer_routines.c (thread_func): Change return - type to void and add casts in use to avoid warnings with all gcc - versions. - -2002-08-08 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/bits/local_lim.h (PTHREAD_THREADS_MAX): - Bump to 16384. - * manager.c (__pthread_handles): Remove. - * pthandles.c: New file. - * pthread.c (__pthread_initialize_minimal): Initialize - __pthread_handles[0] and __pthread_handles[1]. - * Makefile (libpthread-routines): Add pthandles (must be last). - -2002-08-26 Brian Youmans <3diff@gnu.org> - - * Examples/ex10.c: Corrected version number in Lesser GPL copying - permission notice from 2 to 2.1. - * Examples/ex11.c: Likewise. - * Examples/ex13.c: Likewise. - * Examples/ex8.c: Likewise. - * Examples/ex9.c: Likewise. - * barrier.c: Likewise. - * events.c: Likewise. - * lockfile.c: Likewise. - * no-tsd.c: Likewise. - * pt-machine.c: Likewise. - * ptclock_gettime.c: Likewise. - * ptclock_settime.c: Likewise. - * rwlock.c: Likewise. - * sysdeps/alpha/pspinlock.c: Likewise. - * sysdeps/alpha/pt-machine.h: Likewise. - * sysdeps/arm/pspinlock.c: Likewise. - * sysdeps/arm/pt-machine.h: Likewise. - * sysdeps/cris/pspinlock.c: Likewise. - * sysdeps/cris/pt-machine.h: Likewise. - * sysdeps/hppa/pspinlock.c: Likewise. - * sysdeps/hppa/pt-machine.h: Likewise. - * sysdeps/i386/i686/pt-machine.h: Likewise. - * sysdeps/i386/pspinlock.c: Likewise. - * sysdeps/i386/pt-machine.h: Likewise. - * sysdeps/i386/useldt.h: Likewise. - * sysdeps/ia64/pspinlock.c: Likewise. - * sysdeps/ia64/pt-machine.h: Likewise. - * sysdeps/m68k/pspinlock.c: Likewise. - * sysdeps/m68k/pt-machine.h: Likewise. - * sysdeps/mips/pspinlock.c: Likewise. - * sysdeps/mips/pt-machine.h: Likewise. - * sysdeps/powerpc/pspinlock.c: Likewise. - * sysdeps/powerpc/pt-machine.h: Likewise. - * sysdeps/pthread/bits/initspin.h: Likewise. - * sysdeps/pthread/bits/libc-lock.h: Likewise. - * sysdeps/pthread/bits/libc-tsd.h: Likewise. - * sysdeps/pthread/getcpuclockid.c: Likewise. - * sysdeps/pthread/posix-timer.h: Likewise. - * sysdeps/pthread/timer_create.c: Likewise. - * sysdeps/pthread/timer_delete.c: Likewise. - * sysdeps/pthread/timer_getoverr.c: Likewise. - * sysdeps/pthread/timer_gettime.c: Likewise. - * sysdeps/pthread/timer_routines.c: Likewise. - * sysdeps/pthread/timer_settime.c: Likewise. - * sysdeps/pthread/tst-timer.c: Likewise. - * sysdeps/s390/pspinlock.c: Likewise. - * sysdeps/s390/s390-32/pt-machine.h: Likewise. - * sysdeps/s390/s390-64/pt-machine.h: Likewise. - * sysdeps/sh/pspinlock.c: Likewise. - * sysdeps/sh/pt-machine.h: Likewise. - * sysdeps/sparc/sparc32/pspinlock.c: Likewise. - * sysdeps/sparc/sparc32/pt-machine.h: Likewise. - * sysdeps/sparc/sparc32/sparcv9/pspinlock.c: Likewise. - * sysdeps/sparc/sparc64/pspinlock.c: Likewise. - * sysdeps/sparc/sparc64/pt-machine.h: Likewise. - * sysdeps/unix/sysv/linux/bits/local_lim.h: Likewise. - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Likewise. - * sysdeps/unix/sysv/linux/bits/sigthread.h: Likewise. - * sysdeps/unix/sysv/linux/hppa/bits/initspin.h: Likewise. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - * tststack.c: Likewise. - * unload.c: Likewise. - * weaks.c: Likewise. - * wrapsyscall.c: Likewise. - - * sysdeps/pthread/pt-initfini.c: Changed copying - permission notice to Lesser GPL from Library GPL, including the - references in the special exception. - * sysdeps/unix/sysv/linux/hppa/pt-initfini.c: Likewise. - * sysdeps/unix/sysv/linux/ia64/pt-initfini.c: Likewise. - * sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c: - Likewise. - * sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c: - Likewise. - * sysdeps/unix/sysv/linux/sh/pt-initfini.c: Likewise. - -2002-08-26 Ulrich Drepper <drepper@redhat.com> - - * Examples/ex10.c (thread): tv_nsec == 1000000000 is already - overflow [PR libc/4244]. - -2002-08-25 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/timer_routines.c (thread_func): Make the - compiler happy by adding a return statement which will never be - reached. - - * tst-context.c (main): Cast to long before casting to pointer. - - * Examples/ex17.c (main): Use correct format string. - - * Examples/ex9.c (thread): Remove incorrect return statement. - -2002-08-23 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (__linuxthreads_version): New global constant. - -2002-08-23 Andreas Jaeger <aj@suse.de> - - * sysdeps/x86_64/pt-machine.h: Use %fs instead of %gs - as thread specific register. - (testandset): Fix inline asm. - (THREAD_GETMEM): Fix inline asm. - -2002-08-22 Roland McGrath <roland@redhat.com> - - * sysdeps/i386/useldt.h (INIT_THREAD_SELF): Remove [HAVE_TLS_SUPPORT] - conditional. - (INIT_THREAD_SELF): Pass second arg to DO_SET_THREAD_AREA. - (DO_SET_THREAD_AREA): Take second arg, pass to DO_SET_THREAD_AREA_REUSE - macro. That chooses whether to reuse %gs value or let kernel set it. - [USE_TLS] (DO_SET_THREAD_AREA_REUSE): New macro, always 1. - [!USE_TLS] (DO_SET_THREAD_AREA_REUSE): New macro, true if arg is - not constant 0. - -2002-08-21 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/tls.h (TLS_SETUP_GS_SEGMENT): Add new parameter - also to the third definition of this macro. - -2002-06-17 Andreas Jaeger <aj@suse.de> - - * sysdeps/unix/sysv/linux/x86_64/Makefile (CFLAGS-pt-initfini.s): - Set it. - -2002-08-20 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/useldt.h: Go back to using 16-bit instructions when - loading/reading segment registers. Some old hardware doesn't - handle the 32-bit instructions as expected. - * sysdeps/i386/tls.h: Likewise. - - * sysdeps/i386/tls.h (TLS_DO_SET_THREAD_AREA): Second parameter is - renamed to secondcall and use is negated. - (TLS_SETUP_GS_SEGMENT): Likewise. - (TLS_INIT_TP): Likewise. - * sysdeps/sh/tls.h (TLS_INIT_TP): Second parameter is renamed to - secondcall. - - * sysdeps/i386/tls.h: Use 32-bit operations when handling segment - registers. No need to mask upper 16 bits in this case. - * sysdeps/i386/useldt.h: Likewise. - (DO_SET_THREAD_AREA): We have to load %gs again even if the value - is the same since the GDT content changed. - - * sysdeps/i386/tls.h (TLS_INIT_TP): Add new parameter and pass it on - to TLS_SETUP_GS_SEGMENT. - (TLS_SETUP_GS_SEGMENT): Add new parameter and pass it on to - TLS_DO_SET_THREAD_AREA. - (TLS_DO_SET_THREAD_AREA): If new parameter is zero determine - entry number from %gs value. - * sysdeps/sh/tls.h (TLS_INIT_TP): Add new parameter and simply - ignore it. - - * manager.c (pthread_handle_create): Pass NULL to _dl_allocate_tls. - Pass true to _dl_deallocate_tls. - (pthread_free): Likewise. - * pthread.c (__pthread_initialize_manager): Likewise. - -2002-08-19 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/useldt.h (DO_SET_THREAD_AREA): Use correct shift when - computing index from %gs value. - -2002-08-16 Roland McGrath <roland@redhat.com> - - * sysdeps/i386/tls.h (TLS_DO_SET_THREAD_AREA): Calculate segment - register value from entry number properly. - - * sysdeps/i386/tls.h (TLS_DO_MODIFY_LDT): Rewrite asm to use %ebx - optimally conditional on [__PIC__]. - (TLS_DO_SET_THREAD_AREA): New macro, implement inline syscall - without touching errno, and use latest modify_ldt-like interface. - (TLS_SETUP_GS_SEGMENT): Use that instead of INLINE_SYSCALL. - * sysdeps/i386/useldt.h (DO_MODIFY_LDT): Set %gs in this macro. - (DO_SET_THREAD_AREA): New macro, uses current syscall interface with - existing %gs value as the segment to set. - (INIT_THREAD_SELF): Rewritten using those. Use set_thread_area only - under [HAVE_TLS_SUPPORT] so we can rely on the initialization done - by the first thread's early TLS setup. - -2002-08-15 Roland McGrath <roland@redhat.com> - - * sysdeps/i386/tls.h (TLS_INIT_TP): Use statement expression and - return a value as callers now expect. - -2002-08-11 Roland McGrath <roland@redhat.com> - - * pthread.c (__pthread_initialize_manager): Initialize - p_header.data.tcb field of manager thread's descriptor. - (__pthread_initialize_minimal): Don't initialize p_header.data.self - field, already done by TLS_INIT_TP. - - * manager.c (pthread_handle_create): Move p_header field initializers - together. - -2002-08-08 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/tls.h (TLS_DO_SET_THREAD_AREA): Removed. - -2002-08-07 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (__linuxthreads_initial_report_events): New variable. - (__pthread_initialize_manager): Use it to initialize p_report_events - of initial thread. - [TLS]: Store pointer to descriptor of manager in __pthread_handles. - -2002-08-07 Roland McGrath <roland@redhat.com> - - * sysdeps/i386/tls.h (TLS_DO_MODIFY_LDT): Add an extra argument with - an "m" constraint to the asm so the compiler knows LDT_ENTRY was used. - -2002-08-02 Roland McGrath <roland@redhat.com> - - * sysdeps/pthread/bits/libc-tsd.h (enum __libc_tsd_key_t): - Add _LIBC_TSD_KEY_LOCALE. - * manager.c (pthread_start_thread) [!(USE_TLS && HAVE___THREAD)]: - Call __uselocale to initialize our per-thread locale pointer to - the global one. - * pthread.c (__pthread_initialize_minimal): Likewise. - - * sysdeps/i386/tls.h (TLS_DO_SET_THREAD_AREA): Add missing \s. - -2002-08-02 Ulrich Drepper <drepper@redhat.com> - - * pthread.c: Declare _errno, _h_errno, and _res unless we use TLS - internally. - - * cancel.c (__pthread_perform_cleanup) [USE_TLS && HAVE___THREAD]: - Don't use p_libc_specific element in thread descriptor. - -2002-07-30 Roland McGrath <roland@redhat.com> - - * sysdeps/pthread/bits/libc-tsd.h: Include <tls.h>. - [USE_TLS && HAVE___THREAD]: Just include the sysdeps/generic file, - which does the right thing when __thread support is available. - * descr.h (struct _pthread_descr_struct) [USE_TLS && HAVE___THREAD]: - Omit `p_libc_specific', `p_errnop', `p_errno', `p_h_errnop', - `p_h_errno', `p_resp', and `p_res' members. - * pthread.c (__pthread_initialize_minimal) [USE_TLS && HAVE___THREAD]: - Don't initialize `p_errnop' and `p_h_errnop' members. - (__pthread_reset_main_thread): Likewise. - (__pthread_initialize_manager): Likewise. - * manager.c (__pthread_manager, pthread_handle_create): Likewise. - * pthread.c (pthread_initialize) [USE_TLS && HAVE___THREAD]: - Don't initialize `p_resp' member. - (__pthread_reset_main_thread): Likewise. - * manager.c (pthread_handle_create): Likewise. - * specific.c (libc_internal_tsd_set, libc_internal_tsd_get): - Conditionalize these on [!(USE_TLS && HAVE___THREAD)]. - * no-tsd.c: Conditionalize contents on [!(USE_TLS && HAVE___THREAD)]. - * errno.c [USE_TLS && HAVE___THREAD] - (__h_errno_location, __res_state): Don't define these at all. - - * sysdeps/i386/tls.h (INSTALL_DTV): Add parens around arguments! - (INSTALL_NEW_DTV, GET_DTV): Likewise. - * sysdeps/sh/tls.h (INSTALL_DTV, INSTALL_NEW_DTV, GET_DTV): Likewise. - - * weaks.c: Don't include <errno.h> here. - -2002-08-01 Roland McGrath <roland@redhat.com> - - * sysdeps/i386/tls.h (TLS_DO_MODIFY_LDT): New macro, broken out of - TLS_INIT_TP. - (TLS_DO_SET_THREAD_AREA): New macro, uses thread_set_area syscall. - (TLS_SETUP_GS_SEGMENT): New macro, try one or the other or both. - (TLS_INIT_TP): Use that. - -2002-08-02 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/i386/useldt.h (DO_MODIFY_LDT): Move from INIT_THREAD_SELF. - (INIT_THREAD_SELF): Use sys_thread_area syscall instead if available. - (FREE_THREAD): Avoid modify_ldt if using GDT. - * sysdeps/i386/pspinlock.c (__have_no_set_thread_area): New variable. - -2002-07-25 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/i386/tls.h: Use __ASSEMBLER__ test macro not ASSEMBLER. - * sysdeps/i386/pt-machine.h: Likewise. - * sysdeps/i386/useldt.h: Likewise. - -2002-07-22 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (__pthread_initialize_minimal): If !SHARED and TLS - call __libc_setup_tls first. - * Makefile: Actually create tst-signal.out file when running the test. - (tests): Add tststatic. - * Examples/tststatic.c: New file. - -2002-07-19 Ulrich Drepper <drepper@redhat.com> - - * errno.c (__errno_location): Don't define unless !USE_TLS - || !HAVE___THREAD. - * sysdeps/i386/pt-machine.c: Protect C code with #ifndef ASSEMBLER. - * sysdeps/i386/tls.h: Likewise. - * sysdeps/i386/useldt.h: Likewise. - * sysdeps/i386/i686/pt-machine.h: Likewise. - -2002-07-02 H.J. Lu <hjl@gnu.org> - - * sysdeps/mips/pspinlock.c: Don't include <sgidefs.h>. Always - use ll/sc. - * sysdeps/mips/pt-machine.h: Likewise. - -2002-07-14 Ulrich Drepper <drepper@redhat.com> - - * manager.c (pthread_handle_create): Initialize self-reference in - descriptor. - -2002-07-01 Jakub Jelinek <jakub@redhat.com> - - * Examples/ex9.c (main): Remove unused th variable. - -2002-07-10 Ulrich Drepper <drepper@redhat.com> - - * wrapsyscall.c: Add __nanosleep alias. - * Versions (GLIBC_2.2.6): Add __nanosleep. - * bug-sleep.c: New file. - * Makefile (tests): Add bug-sleep. - -2002-06-19 Steven Munroe <sjmunroe@vnet.ibm.com> - - * Examples/ex9.c (main): Use list of children and join them. - (thread): Do not call exit. - -2002-06-20 Ulrich Drepper <drepper@redhat.com> - - * spinlock.c (wait_node_alloc): We cannot use compare-and-exchange. - Unconditionally use the code using spinlock. Use __pthread_release - to free a spinlock. - (wait_node_free): Likewise. - (__pthread_acquire, __pthread_release): Unconditionally define. - -2002-06-07 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/ia64/pt-machine.h (MEMORY_BARRIER): Fix typo. - -2002-05-24 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/ia64/pt-machine.h (MEMORY_BARRIER): Use __sync_synchronize. - -2002-05-21 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/pthread.h (pthread_create): Rename first - parameter. - (pthread_cancel): Likewise. - * internals.h (__pthread_create_2_1): Likewise. - * sysdeps/unix/sysv/linux/bits/sigthread.h (pthread_kill): Likewise. - -2002-05-20 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/alpha/pt-machine.c (THREAD_SELF): Remove clobber. - Patch by Glen Nakamura <gen@flex.com>. - -2002-05-03 Ulrich Drepper <drepper@redhat.com> - - * signals.c: Move sighandler functions to... - * sighandler.c: ...here. New file. - * signals.c: Move signal handler related type definitions to... - * internals.h: ...here. Add prototypes for signal handlers. - * Makefile (libpthread-routines): Add sighandler. - (CFLAGS-sighandler.c): Add $(exceptions). - -2002-04-30 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/x86_64/Makefile: New file. - -2002-04-08 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/timer_getoverr.c: Return real overrun. - * sysdeps/pthread/posix-timer.h (struct timer_node): Add overrun_count. - * sysdeps/pthread/timer_routines.c (thread_func): Schedule next timeout - based on previous one and not on current time. Count overruns. - Patch by Eric F. Sorton <eric@cctcorp.com>. - - * sysdeps/unix/sysv/linux/bits/local_lim.h: Add DELAYTIMER_MAX. - -2002-04-08 kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/sh/pt-machine.h: Define _PT_MACHINE_H - if it isn't defined yet. - (FLOATING_STACKS, ARCH_STACK_MAX_SIZE): Defined. - (THREAD_GETMEM, THREAD_GETMEM_NC, THREAD_SETMEM, THREAD_SETMEM_NC): - Likewise. - * sysdeps/sh/tls.h: New file. - -2002-04-08 Jakub Jelinek <jakub@redhat.com> - - * manager.c (__pthread_manager_event): Use self instead of arg - for INIT_THREAD_SELF. - * sysdeps/i386/useldt.h (INIT_THREAD_SELF): Use sizeof (struct - _pthread_descr_struct) instead of sizeof (*descr). - -2002-04-05 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/ia64/pt-machine.h: Protect against multiple inclusion. - * sysdeps/alpha/pt-machine.h: Likewise. - * sysdeps/arm/pt-machine.h: Likewise. - * sysdeps/cris/pt-machine.h: Likewise. - * sysdeps/hppa/pt-machine.h: Likewise. - * sysdeps/m68k/pt-machine.h: Likewise. - * sysdeps/mips/pt-machine.h: Likewise. - * sysdeps/powerpc/pt-machine.h: Likewise. - * sysdeps/s390/s390-32/pt-machine.h: Likewise. - * sysdeps/s390/s390-64/pt-machine.h: Likewise. - * sysdeps/sh/pt-machine.h: Likewise. - * sysdeps/sparc/sparc32/pt-machine.h: Likewise. - * sysdeps/sparc/sparc64/pt-machine.h: Likewise. - * sysdeps/x86_64/pt-machine.h: Likewise. - -2002-04-05 Jakub Jelinek <jakub@redhat.com> - - * man/pthread_mutexattr_init.man (pthread_mutexattr_settype): Document - instead of pthread_mutexattr_setkind_np. - (pthread_mutexattr_gettype): Similarly. - * man/pthread_mutexattr_setkind_np.man: New. - * man/Makefile (SOURCES): Add pthread_mutexattr_setkind_np.man. - -2002-04-02 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/ia64/pt-machine.h (MEMORY_BARRIER): Define. - -2002-03-22 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/mips/pt-machine.h (MEMORY_BARRIER): Remove. - -2002-03-22 Ulrich Drepper <drepper@redhat.com> - - * internals.h (MEMORY_BARRIER): Define as asm with memory as clobber. - -2002-03-17 Andreas Jaeger <aj@suse.de> - - * sysdeps/i386/pt-machine.h: Add testandset and __compare_and_swap - prototpyes. - * sysdeps/alpha/pt-machine.h: Likewise. - * sysdeps/arm/pt-machine.h: Likewise. - * sysdeps/cris/pt-machine.h: Likewise. - * sysdeps/hppa/pt-machine.h: Likewise. - * sysdeps/i386/i686/pt-machine.h: Likewise. - * sysdeps/ia64/pt-machine.h: Likewise. - * sysdeps/m68k/pt-machine.h: Likewise. - * sysdeps/mips/pt-machine.h: Likewise. - * sysdeps/powerpc/pt-machine.h: Likewise. - * sysdeps/s390/s390-32/pt-machine.h: Likewise. - * sysdeps/s390/s390-64/pt-machine.h: Likewise. - * sysdeps/sh/pt-machine.h: Likewise. - * sysdeps/sparc/sparc32/pt-machine.h: Likewise. - * sysdeps/sparc/sparc64/pt-machine.h: Likewise. - * sysdeps/x86_64/pt-machine.h: Likewise. - - * internals.h: Move testandset and __compare_and_swap prototypes - to pt-machine.h. - -2002-03-03 Andreas Jaeger <aj@suse.de> - - * errno.c: Include resolv.h to avoid warning. - -2002-02-27 Ulrich Drepper <drepper@redhat.com> - - * pthread.c [USE_TLS] (thread_self_stack): Correct check for upper - stack limit. - -2002-02-23 Ulrich Drepper <drepper@redhat.com> - - * attr.c (pthread_getattr_np): Don't take thread descriptor size - into account if USE_TLS. - * manager.c (pthread_handle_create): Free TLS data structures if call - failed. Pass correct stack to clone if USE_TLS. - * sysdeps/i386/pt-machine.h: Handle multiple inclusion. - * sysdeps/i386/i686/pt-machine.h: Likewise. - * sysdeps/i386/tls.h: Unconditionally include <pt-machine.h>. - - * descr.h (struct _pthread_descr_struct): Update p_header for TLS. - Add p_stackaddr element #if USE_TLS. - * internals.c: Include <tls.h>. - * manager.c: Integrate creating and handling of thread descriptor - for TLS. - * pthread.c: Likewise. - * sysdeps/i386/tls.h (tcbhead_t): Add self pointer. - Include <linuxthreads/descr.h> only if TLS is really used. - (GET_DTV): New macro. - (TLS_INIT_TP): Initialize self pointer. - -2002-02-17 Andreas Schwab <schwab@suse.de> - - * signals.c (sigwait): Check for old sighandler being SIG_ERR, - not NULL. - -2002-02-12 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/tls.c (INSTALL_NEW_DTV): Define. - (INSTALL_DTV): Adjust for being passed pointer to element with length. - -2002-02-08 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/tls.h (TLS_INIT_TP): Also initialize %gs. - -2002-02-08 Richard Henderson <rth@redhat.com> - - * sysdeps/alpha/elf/pt-initfini.c: Use \n\ for multiline string. - -2002-02-08 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/tls.h: TLS cannot be supported with FLOATING_STACKS - after all. - -2002-02-07 H.J. Lu <hjl@gnu.org> - - * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Silence the - gcc warning. - (__pthread_spin_lock): Remove ".set noreorder". - * sysdeps/mips/pt-machine.h (__compare_and_swap): Liekwise. - -2002-02-05 H.J. Lu <hjl@gnu.org> - - * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Not use - branch likely. - * sysdeps/mips/pt-machine.h (testandset): Likewise. - (__compare_and_swap): Likewise. - -2002-02-07 Ulrich Drepper <drepper@redhat.com> - - * internals.h: Move declarations/definitions of - __pthread_initial_thread_bos, __pthread_initial_thread, - __pthread_manager_thread_bos, __pthread_manager_thread_tos, - __pthread_manager_thread, __pthread_nonstandard_stacks, STACK_SIZE, - CURRENT_STACK_FRAME, __pthread_find_self, and thread_self... - * descr.h: ...here. - * sysdeps/i386/tls.h: Add TLS definitions also for !FLOATING_STACKS. - Define THREAD_GETMEM accordingly. - -2002-02-06 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/tls.h: Include <stddef.h> for size_t. - - * sysdeps/i386/tls.h: Define THREAD_DTV. - -2002-02-04 Ulrich Drepper <drepper@redhat.com> - - * internals.h: Move thread descriptor definition... - * descr.h.: ...here. New file. - * sysdeps/i386/tls.h: New file. - -2002-02-01 H.J. Lu <hjl@gnu.org> - - * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Use a - different register in the delayed slot. Use branch likely. - - * sysdeps/mips/pt-machine.h (testandset): Call _test_and_set. - (__compare_and_swap): Return 0 only when failed to compare. Use - branch likely. - -2002-02-01 Jakub Jelinek <jakub@redhat.com> - - * Versions (__libc_internal_tsd_get, __libc_internal_tsd_set, - __pthread_kill_other_threads_np): Move to GLIBC_PRIVATE. - * sysdeps/i386/i586/Versions: Move all symbols to GLIBC_PRIVATE. - * sysdeps/i386/i686/Versions: Move all symbols to GLIBC_PRIVATE. - * sysdeps/sparc/sparc32/sparcv9/Versions: New file. - * sysdeps/sparc/sparc64/Versions: New file. - * sysdeps/ia64/Versions: Move all symbols to GLIBC_PRIVATE. - -2002-01-31 Ulrich Drepper <drepper@redhat.com> - - * pthread.c: _dl_cpuclock_offset is not any longer a global variable - in SHARED code, use GL(dl_cpuclock_offset). - -2002-01-28 Andreas Jaeger <aj@suse.de> - - * sysdeps/mips/pspinlock.c (__pthread_spin_init): Clear *LOCK to - 0. Patch by Machida Hiroyuki <machida@sm.sony.co.jp>. - -2002-01-16 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * sysdeps/s390/s390-32/pt-machine.h (MEMORY_BARRIER): Define. - (CURRENT_STACK_FRAME): Remove duplicate definition. - * sysdeps/s390/s390-64/pt-machine.h: Likewise. - -2002-01-14 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * Makefile (CFLAGS-tst-cancel.c): Add -fno-inline-functions to prevent - automatic inline. - -2002-01-12 Andreas Schwab <schwab@suse.de> - - * Makefile (test-srcs): Add tst-signal. - (tests): Run tst-signal. - (distribute): Add tst-signal.sh. - * tst-signal.c, tst-signal.sh: New files. - -2002-01-14 Andreas Jaeger <aj@suse.de> - - * sysdeps/x86_64/pt-machine.h (INIT_THREAD_SELF): Avoid warning. - -2002-01-11 Andreas Schwab <schwab@suse.de> - - * signals.c (sighandler): Initialize all elements to SIG_ERR. - (__sigaction): Don't use value from sighandler if it is SIG_ERR. - -2002-01-06 Richard Henderson <rth@redhat.com> - - * sysdeps/alpha/elf/pt-initfini.c: New file. - -2001-12-29 Andreas Jaeger <aj@suse.de> - - * Examples/ex9.c: Add noreturn attribute for thread. - * Examples/ex10.c: Likewise. - * Examples/ex13.c (thread_start): Likewise. - * Examples/ex15.c (worker): Likewise. - - * Examples/ex18.c: Include unistd.h for prototype of sleep. - -2001-12-14 Ulrich Drepper <drepper@redhat.com> - - * man/pthread_atfork.man: Adjust description of mutex handling - after fork for current implementation. - * linuxthreads.texi: Likewise [PR libc/2519]. - -2001-12-13 Andreas Schwab <schwab@suse.de> - - * specific.c (pthread_key_delete): Don't contact the thread - manager if no threads have been created yet. - -2001-12-12 NIIBE Yutaka <gniibe@m17n.org> - - * sysdeps/sh/pt-machine.h (INIT_THREAD_SELF): Added __volatile__ - qualifier to be safe. - -2001-11-30 Andreas Schwab <schwab@suse.de> - - * pthread.c (pthread_handle_sigcancel) [THREAD_SELF]: Double check - that self is the manager thread, and initialize the thread - register if not. - (thread_self_stack) [THREAD_SELF]: New function to find self via - stack pointer. - * manager.c (pthread_handle_create): Don't block cancel signal any - more. - -2001-11-29 Andreas Jaeger <aj@suse.de> - - * sysdeps/x86_64/pt-machine.h: Use %gs as thread specific register. - (THREAD_SELF): New. - (INIT_THREAD_SELF): New. - (THREAD_GETMEM): New. - (THREAD_GETMEM_NC): - (THREAD_SETMEM): New. - (THREAD_SETMEM_NC): New. - (FLOATING_STACKS): Define. - (ARCH_STACK_MAX_SIZE): Define. - -2001-11-28 Kaz Kylheku <kaz@ashi.footprints.net> - - Bugfix to pthread_key_delete. It was iterating over the thread - manager's linked list of threads, behind the thread manager's - back causing a race. The fix is to have the manager iterate over - the threads instead, using a new request type for doing so. - * internals.h (struct pthread_request): New manager request type - REQ_FOR_EACH_THREAD. - * manager.c (pthread_for_each_thread): New function. - (__pthread_manager): Handle new REQ_FOR_EACH_THREAD request. - * specific.c (struct pthread_key_delete_helper_args): New type. - (pthread_key_delete_helper): New static function. - (pthread_key_delete): Use the new thread manager - REQ_FOR_EACH_THREAD function to iterate over the threads and set - the delete key slot to a null value in each thread. - * Examples/ex18.c: New test. - * Makefile (tests): Add ex18. - -2001-11-22 Wolfram Gloger <wg@malloc.de> - - * pthread.c (pthread_onexit_process): Don't call free - after threads have been asynchronously terminated. - - * manager.c (pthread_handle_exit): Surround cancellation - of threads with __flockfilelist()/__funlockfilelist(). - -2001-11-26 Andreas Schwab <schwab@suse.de> - - * manager.c (pthread_handle_create): Start the child thread with - the cancel signal blocked, so that it does not handle it before - the thread register is set up. Save errno from failed clone call. - -2001-11-15 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/i686/Implies: Removed. - * sysdeps/i386/i686/Versions: New file. - -2001-10-31 Andreas Jaeger <aj@suse.de> - - * sysdeps/x86_64/Makefile: Remove, we do not need it anymore. - -2001-10-05 Kevin Buettner <kevinb@cygnus.com> - - * pthread.c (__linuxthread_pthread_sizeof_descr): Change name - to __linuxthreads_pthread_sizeof_descr to match name used by - symbol_list_arr[LINUXTHREADS_PTHREAD_SIZEOF_DESCR] in - linuxthreads_db/td_symbol_list.c. - -2001-09-22 Andreas Jaeger <aj@suse.de> - - * linuxthreads/tst-context.c: Avoid compile warning. - -2001-09-20 Andreas Jaeger <aj@suse.de> - - * shlib-versions: Add x86-64. - -2001-09-19 Andreas Jaeger <aj@suse.de> - - * sysdeps/x86_64/Makefile: New file. - * sysdeps/x86_64/pspinlock.c: New file. - * sysdeps/x86_64/pt-machine.h: New file. - -2001-09-12 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/timer_delete.c (timer_delete): Thread may be NULL - for SIGEV_NONE. - * sysdeps/pthread/timer_settime.c (timer_settime): Likewise. - -2001-09-11 Ulrich Drepper <drepper@redhat.com> - Wolfram Gloger <wg@malloc.de> - - * join.c: Protect all communications from and to manager with - TEMP_FAILURE_RETRY. - * manager.c: Likewise. - * pthread.c: Likewise. - * smeaphore.c: Likewise. - -2001-08-29 Ulrich Drepper <drepper@redhat.com> - - * spinlock.c (__pthread_lock): Top max_count value with - MAX_ADAPTIVE_SPIN_COUNT. - * internals.h (MAX_ADAPTIVE_SPIN_COUNT): Define if not already done. - - * sysdeps/i386/i686/pt-machine.h (BUSY_WAIT_NOP): New macro to - help P4. - -2001-08-27 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/bits/libc-lock.h (__libc_rwlock_t): Only define to - non-opaque type if __USE_UNIX98. - -2001-08-26 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/bits/libc-lock.h (__libc_lock_t): Define - non-opaque lock types also if _IO_MTSAFE_IO is defined. - -2001-08-23 Roland McGrath <roland@frob.com> - - * sysdeps/pthread/bits/libc-lock.h (__libc_cleanup_region_start): Take - new first argument, skip the cleanup handler if it's zero. - (_LIBC_LOCK_RECURSIVE_INITIALIZER): New macro. - (__libc_lock_define_initialized_recursive): Use it. - * sysdeps/pthread/bits/stdio-lock.h: File removed. - The sysdeps/generic file from the main tree now suffices. - -2001-08-22 Roland McGrath <roland@frob.com> - - * sysdeps/pthread/bits/stdio-lock.h: Include <bits/libc-lock.h> - instead of <pthread.h>. - (_IO_lock_t): Define this typedef using __libc_lock_define_recursive. - (_IO_lock_initializer): Add braces. - (_IO_lock_lock): Use __libc_lock_lock_recursive. - (_IO_lock_unlock): Use __libc_lock_unlock_recursive. - - * sysdeps/pthread/bits/libc-lock.h (__libc_lock_recursive_t): New type. - (__libc_lock_define_initialized_recursive): Use it. - (__libc_lock_init_recursive): Likewise. - (__libc_lock_fini_recursive): Likewise. - (__libc_lock_lock_recursive): Likewise. - (__libc_lock_trylock_recursive): Likewise. - (__libc_lock_unlock_recursive): Likewise. - (__libc_lock_define_recursive): New macro. - -2001-08-14 Jakub Jelinek <jakub@redhat.com> - - * lockfile.c (__pthread_provide_lockfile): New variable. - * pthread.c (__pthread_require_lockfile): New variable. - * cancel.c (__pthread_require_lockfile): New variable. - -2001-07-31 Ulrich Drepper <drepper@redhat.com> - - * tst-context.c (threadfct): Initialize context before calling - makecontext. - - * Examples/ex17.c: Make sure test thread is around long enough. - -2001-07-26 kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/sh/pt-machine.h (THREAD_SELF, INIT_THREAD_SELF): Defined. - -2001-07-24 Ulrich Drepper <drepper@redhat.com> - - * tst-context.c (main): Print explanation before bailing out - because context handling is not supported. - -2001-07-23 Ulrich Drepper <drepper@redhat.com> - - * Makefile (tests): Add tst-context. - * tst-context.c: New file. - - * sysdeps/pthread/bits/stdio-lock.h: Define - _IO_cleanup_region_start_noarg. - -2001-07-23 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/alpha/pt-machine.h (FLOATING_STACKS): Define. - (ARCH_STACK_MAX_SIZE): Define. - * sysdeps/sparc/sparc32/pt-machine.h: Likewise. - * sysdeps/sparc/sparc64/pt-machine.h: Likewise. - -2001-07-19 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/i386/useldt.h: Fix typo in ARCH_STACK_MAX_SIZE comment. - - * sysdeps/ia64/pt-machine.h (FLOATING_STACKS): Define. - (ARCH_STACK_MAX_SIZE): Define. - * manager.c (pthread_allocate_stack): Handle FLOATING_STACKS with - NEED_SEPARATE_REGISTER_STACK. - -2001-07-16 Andreas Schwab <schwab@suse.de> - - * Makefile (before-compile): Don't add $(objpfx)crti.o. - (omit-deps): Add crti. - ($(objpfx)libpthread.so): Depend on $(objpfx)crti.o, but make sure - it is filtered out of the link command. - -2001-07-16 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (pthread_initialize): For FLOATING_STACKS don't bother - to find the right value for __pthread_initial_thread_bos, it's not - used. If not FLOATING_STACKS first run - __pthread_init_max_stacksize. - -2001-06-16 H.J. Lu <hjl@gnu.org> - - * internals.h: Include <stackinfo.h>. - - * attr.c: Don't include <stackinfo.h> here. - * cancel.c: Likewise. - * manager.c: Likewise. - * pthread.c: Likewise. - * ptlongjmp.c: Likewise. - -2001-03-23 Matthew Wilcox <willy@ldl.fc.hp.com> - - * attr.c: Make _STACK_GROWS_UP work. - * internals.h: Likewise. - * manager.c: Likewise. - * pthread.c: Likewise. - -2001-06-15 H.J. Lu <hjl@gnu.org> - - * pthread.c (__pthread_reset_main_thread): Fix a typo. - -2001-02-02 John S. Marvin <jsm@udlkern.fc.hp.com> - - * semaphore.h: Use struct _pthread_fastlock as an element of - sem_t instead of an identical struct. - * rwlock.c: Remove casts. - * semaphore.c: Likewise. - -2001-04-30 Alan Modra <amodra@one.net.au> - - * sysdeps/unix/sysv/linux/hppa/pt-initfini.c: New. - -2001-05-25 Bruce Mitchener <bruce@cubik.org> - - * linuxthreads.texi: Spelling corrections. - -2001-05-25 Ulrich Drepper <drepper@redhat.com> - - * oldsemaphore.c (__old_sem_wait): Clear p_nextwaiting before - returning successfully. - Patch by Gene Cooperman <gene@ccs.neu.edu>. - -2001-05-24 Ulrich Drepper <drepper@redhat.com> - - * spinlock.c (__pthread_lock) [HAS_COMPARE_AND_SWAP]: Before doing any - serious work try once whether the lock is uncontested. - Remove duplicate reading of __status before loop. - Change suggested by Hans Boehm <hans_boehm@hp.com>. - - * spinlock.h (__pthread_trylock): Remove need for oldstatus variable. - (__pthread_alt_trylock): Likewise. - -2001-05-01 Kaz Kylheku <kaz@ashi.footprints.net> - - Memory barrier overhaul following line by line inspection. - * mutex.c (pthread_once): Missing memory barriers added. - * pthread.c (__pthread_wait_for_restart_signal, - __pthread_timedsuspend_new, __pthread_restart_new): Added - memory barriers ``just in case'' and for documentary value. - * spinlock.c (__pthread_release): New inline function for releasing - spinlock, to complement __pthread_acquire. Includes memory - barrier prior to assignment to spinlock, and __asm __volatile - dance to prevent reordering or optimization of the spinlock access. - * spinlock.c (__pthread_unlock, __pthread_alt_lock, - __pthread_alt_timedlock, __pthread_alt_unlock, - __pthread_compare_and_swap): Updated to use new __pthread_release - instead of updating spinlock directly. - * spinlock.c (__pthread_lock, __pthread_unlock, wait_node_alloc, - wait_node_free, wait_node_dequeue, __pthread_alt_lock, - __pthread_alt_timedlock, __pthread_alt_unlock, __pthread_acquire): - Memory barrier overhaul. Lots of missing memory barriers added, - a couple needless ones removed. - * spinlock.c (__pthread_compare_and_swap): testandset optimization - removed, just calls __pthread_acquire, which has the new read - barrier in it before its testandset. - -2001-05-20 Roland McGrath <roland@frob.com> - - * Makeconfig: New file, variables used to be in main libc Makeconfig. - -2001-05-09 Geoff Keating <geoffk@redhat.com> - - * sysdeps/powerpc/pt-machine.h - (HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS): Define. - (__compare_and_swap): Remove memory barriers. - (__compare_and_swap_with_release_semantics): New function. - -2001-04-24 Andreas Jaeger <aj@suse.de> - - * wrapsyscall.c: send* and recv* return ssize_t. - - * sysdeps/pthread/timer_getoverr.c (timer_getoverrun): Unlock the - mutex instead of double locking it. - Reported by Pierre Artaud <partaud@sodatec.com>. - -2001-04-23 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/getcpuclockid.c: Make function generic, test - using #ifdef whether the clock is available. - * sysdeps/unix/sysv/linux/i386/getcpuclockid.c: Removed. - - * sysdeps/ia64/Versions: New file. - - * sysdeps/unix/sysv/linux/ia64/pt-initfini.c (_init): We don't - have to call __gmon_start__ in the libpthread DSO. - * sysdeps/pthread/pt-initfini.c (_init): Likewise. - - * Makefile (libpthread-routines): Add ptclock_gettime and - ptclock_settime. - * internals.h: Don't use cpuclock-init.h definitions, use - hp-timing.h definitions. - * pthread.c: Likewise. - * manager.c: Likewise. - * ptclock_gettime.c: New file. - * ptclock_settime.c: New file. - * internals.h: Fix parameter type for __pthread_clock_gettime and - __pthread_clock_settime. - - * sysdeps/i386/i586/ptclock_gettime.c: Removed. - * sysdeps/i386/i586/ptclock_settime.c: Removed. - * sysdeps/i386/i586/Makefile: Removed. - -2001-04-22 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_ASYNCH_IO. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - -2001-04-21 Andreas Jaeger <aj@suse.de> - - * sysdeps/pthread/timer_routines.c (thread_func): Add noreturn - attribute, remove statements that will never be executed. - (thread_func): Remove mutex_unlock call since it's never executed. - (thread_func): Fix comment as suggested by Jakub Jelinek. - - * manager.c (__pthread_manager): Add noreturn - attribute. - (pthread_start_thread): Likewise, remove return statement. - (pthread_start_thread_event): Likewise. - Add noreturn attribute for pthread_handle_exit. - * weaks.c: Add noreturn attribute for pthread_exit. - - * internals.h: Add __pthread_clock_gettime and - __pthread_clock_settime prototypes. - -2001-04-21 Ulrich Drepper <drepper@redhat.com> - - * internals.h: Include <cpuclock-init.h>. - (struct _pthread_descr_struct): Add p_cpuclock_offset field if - CPUCLOCK_VARDEF is defined. - * pthread.c (__pthread_initialize_minimal): Initialize - p_cpuclock_offset field for main thread if CPUCLOCK_INIT is defined. - * manager.c (pthread_start_thread): Set p_cpuclock_offset field - for new thread to current CPU clock value. - - * sysdeps/i386/useldt.h: Extend all the macros to handle 8-byte values. - - * sysdeps/i386/i586/Makefile: New file. - * sysdeps/i386/i586/Versions: New file. - * sysdeps/i386/i586/ptclock_gettime.c: New file. - * sysdeps/i386/i586/ptclock_settime.c: New file. - * sysdeps/i386/i686/Implies: New file. - -2001-04-18 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/sparc/sparc64/Makefile: Put specs into - $generated, not $postclean-generated. - -2001-04-18 Andreas Jaeger <aj@suse.de> - - * Makefile (otherlibs): Added. - -2001-04-18 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/sparc/sparc64/Makefile: New file. - -2001-04-16 Ulrich Drepper <drepper@redhat.com> - - * signals.c (sigwait): NSIG is no signal number. Block all - signals while in signal handler for signals in SET. - Patch by Manfred Spraul <manfred@colorfullife.com>. - -2001-04-12 Ulrich Drepper <drepper@redhat.com> - - * tst-cancel.c: Disable most tests. Add new test where all - cleanup handlers must run. - * Makefile (tests): Add tst-cancel again. - - * cancel.c (__pthread_perform_cleanup): Correct condition for - leaving cleanup loop early. - - * sysdeps/i386/Makefile: Make sure gcc uses a frame pointer for - all the files which use CURRENT_STACK_FRAME. - * sysdeps/i386/pt-machine.h (CURRENT_STACK_FRAME): Define using - __builtin_frame_address. - * sysdeps/i386/i686/pt-machine.h: Likewise. - -2001-04-11 Ulrich Drepper <drepper@redhat.com> - - * Makefile (tests): Comment out tst-cancel for now. - - * tst-cancel.c (main): Cleanup 4 is supposed to run. Create - temporary file in object directory. - * Makefile: Don't allow inlining when compiling tst-cancel.c. - Pass $(objpfx) to tst-cancel. - -2001-04-11 David S. Miller <davem@redhat.com> - - * sysdeps/sparc/sparc32/pt-machine.h (stack_pointer): Advance - up closer to user local variables so that new cleanup heuristics work. - * sysdeps/sparc/sparc64/pt-machine.h (stack_pointer): Likewise. - -2001-04-11 Ulrich Drepper <drepper@redhat.com> - - * cancel.c (_pthread_cleanup_push): Catch invalid __prev buffer - and remove it. - (_pthread_cleanup_push_defer): Likewise. - - * tst-cancel.c (main): Fix loop printing cleanup output. - -2001-04-10 kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/sh/pspinlock.c (__pthread_spin_lock): Fix a reverse - test. - (__pthread_spin_trylock): Likewise. - * sysdeps/sh/pt-machine.h (testandset): Likewise. - -2001-04-10 Ulrich Drepper <drepper@redhat.com> - - * join.c (pthread_exit): Move code to new function __pthread_do_exit - which takes an extra parameter with the current frame pointer. - Call new function with CURRENT_STACK_FRAME. - (__pthread_do_exit): New function. Call __pthread_perform_cleanup - with the new parameter. - (pthread_join): Call __pthread_do_exit instead of pthread_exit. - * cancel.c (__pthread_perform_cleanup): Takes extra parameter. Use - this parameter as the initial value the cleanup handler records are - compared against. No active cleanup handler record must have an - address lower than the previous one and the initial record must be - above (below on PA) the frame address passed in. - (pthread_setcancelstate): Call __pthread_do_exit instead of - pthread_exit. - (pthread_setcanceltype): Likewise. - (pthread_testcancel): Likewise. - (_pthread_cleanup_pop_restore): Likewise. - * condvar.c (pthread_cond_wait): Likewise. - (pthread_cond_timedwait_relative): Likewise. - * manager.c (pthread_start_thread): Likewise. - * oldsemaphore.c (__old_sem_wait): Likewise. - * pthread.c (pthread_handle_sigcancel): Likewise. - * semaphore.c (__new_sem_wait): Likewise. - (sem_timedwait): Likewise. - * ptlongjmp.c (pthread_cleanup_upto): Also use current stack frame - to limit the cleanup handlers which get run. - * internals.h: Add prototype for __pthread_do_exit. Adjust prototype - for __pthread_perform_cleanup. - - * Makefile (tests): Add tst-cancel. - * tst-cancel.c: New file. - -2001-04-08 Hans-Peter Nilsson <hp@axis.com> - - * sysdeps/cris/pt-machine.h: New file. - * sysdeps/cris/pspinlock.c: New file. - -2001-04-09 Hans-Peter Nilsson <hp@axis.com> - - * shlib-versions: Add case for Linux on CRIS. - -2001-03-26 Ulrich Drepper <drepper@redhat.com> - - * attr.c (pthread_getattr_np): Correct computation of stack size - for machiens with register stack. - - * Examples/ex17.c (main): Correct detection of failed mmap call. - -2001-03-21 Jakub Jelinek <jakub@redhat.com> - - * pthread.c (__pthread_initialize_manager): Fix a typo. - -2001-03-21 Jakub Jelinek <jakub@redhat.com> - - * attr.c (__pthread_attr_setstack): Fix alignment check. - (pthread_getattr_np): __stackaddr is top of stack, not bottom. - * Makefile (tests): Add ex17 test. - * Examples/ex17.c: New test. - -2001-03-20 Ulrich Drepper <drepper@redhat.com> - - * Makefile: Define -D_RPC_THREAD_SAFE_ for cancel.c. - * cancel.c (__pthread_perform_cleanup): Call __rpc_thread_destroy. - * sysdeps/pthread/bits/libc-tsd.h: Define _LIBC_TSD_KEY_VARS. - -2001-03-18 Ulrich Drepper <drepper@redhat.com> - - * Makefile: When generating DSO link with libc_nonshared.a. - -2001-02-26 Jakub Jelinek <jakub@redhat.com> - - * signals.c (pthread_sighandler): Use CALL_SIGHANDLER. - -2001-02-23 Jakub Jelinek <jakub@redhat.com> - - * internals.h (__pthread_init_max_stacksize): New prototype. - * attr.c (__pthread_attr_setstacksize): Call - __pthread_init_max_stacksize if not yet initialized. - * pthread.c (__pthread_init_max_stacksize): New function. - (__pthread_initialize_manager): Call it. - Patch by <dtc@cmucl.cons.org>. - -2001-03-16 Ulrich Drepper <drepper@redhat.com> - - * attr.c (pthread_getattr_np): Fix __stacksize computation for IA-64. - -2001-03-13 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * shlib-versions: Add rule for Linux on 64 bit S/390. - * sysdeps/s390/s390-64/pt-machine.h: New file. - * sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c: New file. - -2001-03-13 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * sysdeps/s390/pt-machine.h: Move to... - * sysdeps/s390/s390-32/pt-machine.h: ...here. - Add defines for FLOATING_STACK and ARCH_STACK_MAX_SIZE. - -2001-03-15 Ulrich Drepper <drepper@redhat.com> - - * Versions [libpthread] (GLIBC_2.2.3): Add pthread_getattr_np. - * attr.c: Implement pthread_getattr_np. - * sysdeps/pthread/pthread.h: Add prototype for pthread_getattr_np. - * internals.h (struct _pthread_descr_struct): Add p_inheritsched. - * manager.c (pthread_handle_create): Initialize p_inheritsched. - -2001-03-09 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * sysdeps/unix/sysv/linux/s390/pt-initfini.c: Use 0x07 padding for - code alignment. - -2001-02-20 Hans Boehm <hans_boehm@hp.com> - - * manager.c (manager_mask): Removed static vesion. Now always local - to __pthread_manager(). - (manager_mask_all): Removed completely. - (__pthread_manager): Remove manager_mask_all initialization. - (pthread_handle_create): Remove code to set and reset signal mask - around __clone2() calls. - -2001-02-17 Jakub Jelinek <jakub@redhat.com> - - * spinlock.c (__pthread_lock): Force lock->__status to be read from - memory on every spin. - -2001-02-10 Andreas Jaeger <aj@suse.de> - - * Makefile (extra-objs): New. - -2001-02-09 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/pt-initfini.c (call_initialize_minimal): Add - __pthread_initialize_minimal prototype. - -2001-02-08 kaz Kojima <kkojima@rr.iij4u.or.jp> - - * sysdeps/unix/sysv/linux/sh/pt-initfini.c: New file. - -2001-02-06 Martin Schwidefsky <schwidefsky@de.ibm.com> - - * sysdeps/unix/sysv/linux/s390/pt-initfini.c: New file. - -2001-02-06 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/ia64/pt-initfini.c: First attempt to fix the - broken code. Patch by Jes Sorensen. - -2001-02-06 Andreas Jaeger <aj@suse.de> - - * sysdeps/pthread/pthread.h: Move __pthread_initialize from here - to... - * internals.h: ...here. - -2001-02-05 Jes Sorensen <jes@linuxcare.com> - - * sysdeps/unix/sysv/linux/ia64/pt-initfini.c: New file. - -2001-02-02 Ulrich Drepper <drepper@redhat.com> - - * Versions: Remove __pthread_initialize_minimal. - -2001-02-01 Ulrich Drepper <drepper@redhat.com> - - * Makefile: Add rules to build crti.o and make it being used in - building libpthread.so. - * sysdeps/i386/Makefile: New file. - * sysdeps/pthread/pt-initfini.c: New file. - - * pthread.c: Cleanups. - -2001-01-28 Andreas Jaeger <aj@suse.de> - - * oldsemaphore.c (__old_sem_init): Adjust for last change. - * sysdeps/pthread/bits/libc-lock.h: Likewise. - * spinlock.c: Likewise. - -2001-01-28 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/bits/initspin.h: Make all names namespace clean. - * sysdeps/unix/sysv/linux/hppa/bits/initspin.h: Likewise. - * manager.c: Adjust for namespace cleanup in bits/initspin.h. - * pthread.c: Likewise. - * spinlock.h: Likewise. - * sysdeps/pthread/pthread.h: Likewise. - -2001-01-26 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/bits/pthreadtypes.h: Define pthread_attr_t also - as struct __pthread_attr_s. - - * semaphore.h (sem_t): Cleanup namespace, rename status and - spinlock elements. - -2001-01-13 Jakub Jelinek <jakub@redhat.com> - - * pthread.c (pthread_onexit_process): Clear - __pthread_manager_thread_bos after freeing it. - * Makefile (tests): Add ex16. - * Examples/ex16.c: New file. - -2001-01-11 Jakub Jelinek <jakub@redhat.com> - - * Makefile (CFLAGS-pthread.c): Pass -DHAVE_Z_NODELETE if ld supports - -z nodelete. - * pthread.c (pthread_exit_process): Rename to... - (pthread_onexit_process): ...this. - (pthread_atexit_process, pthread_atexit_retcode): New. - (pthread_initialize): Call __cxa_atexit instead of __cxa_on_exit - and only if HAVE_Z_NODELETE is not defined. - (__pthread_initialize_manager): Register pthread_atexit_retcode - with __cxa_atexit. - -2001-01-11 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (pthread_initialize): Use __cxs_on_exit not __cxa_atexit. - -2001-01-11 Jakub Jelinek <jakub@redhat.com> - - * Makefile (tests): Add ex15. - * Examples/ex15.c: New test. - -2001-01-08 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (pthread_exit_process): Free memory allocated for - manager stack. - -2000-12-31 Ulrich Drepper <drepper@redhat.com> - - * manager.c (pthread_alloca_stack): Remove MAP_FIXED from mmap calls. - (pthread_free): Always unmap the stack. It's safe now that we don't - use MAP_FIXED to allocate stacks. - -2000-12-31 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/powerpc/pspinlock.c: Don't include pt-machine.h here. - - * manager.c (pthread_allocate_stack): Prepare for removal of MAP_FIXED. - -2000-11-15 Wolfram Gloger <wg@malloc.de> - - * manager.c (pthread_free): [!FLOATING_STACKS]: Only remap the - stack to PROT_NONE, don't unmap it, avoiding collisions with malloc. - -2000-12-27 Andreas Jaeger <aj@suse.de> - - * Examples/ex13.c: Make local functions static. - * ecmutex.c: Likewise. - * joinrace.c: Likewise. - * Examples/ex14.c: Likewise. - - * Examples/ex2.c: Make local functions static; reformat. - * Examples/ex1.c: Likewise. - * Examples/ex4.c: Likewise. - * Examples/ex5.c: Likewise. - * Examples/ex7.c: Likewise. - - * oldsemaphore.c: Add prototypes to shut up GCC. - * pt-machine.c: Likewise. - - * weaks.c: Add prototype for pthread_exit. - - * internals.h: Add some prototypes, format prototypes and add - missing externs. - Move __libc_waitpid prototype to include/sys/wait.h. - - * rwlock.c: Include <bits/libc-lock.h> for prototypes. - * mutex.c: Likewise. - * specific.c: Likewise. - * ptfork.c: Likewise. - - * lockfile.c: Include internals.h to get prototypes. - * events.c: Likewise. - * sysdeps/alpha/pspinlock.c: Likewise. - * sysdeps/arm/pspinlock.c: Likewise. - * sysdeps/hppa/pspinlock.c: Likewise. - * sysdeps/i386/pspinlock.c: Likewise. - * sysdeps/ia64/pspinlock.c: Likewise. - * sysdeps/m68k/pspinlock.c: Likewise. - * sysdeps/mips/pspinlock.c: Likewise. - * sysdeps/powerpc/pspinlock.c: Likewise. - * sysdeps/s390/pspinlock.c: Likewise. - * sysdeps/sh/pspinlock.c: Likewise. - * sysdeps/sparc/sparc32/pspinlock.c: Likewise. - * sysdeps/sparc/sparc32/sparcv9/pspinlock.c: Likewise. - * sysdeps/sparc/sparc64/pspinlock.c: Likewise. - -2000-12-27 Ulrich Drepper <drepper@redhat.com> - - * attr.c (__pthread_attr_setstack): Fix setting of __stackaddr element. - (__pthread_attr_getstack): Return correct address. - Add warnings for using pthread_attr_getstackaddr and - pthread_attr_setstackaddr. - -2000-12-26 Ulrich Drepper <drepper@redhat.com> - - * Examples/ex6.c (test_thread): Make static. - * Examples/ex12.c (test_thread): Make static and add noreturn - attribute. - -2000-12-18 Jes Sorensen <jes@linuxcare.com> - - * linuxthreads/sysdeps/ia64/pt-machine.h: __compare_and_swap - and compare_and_swap_with_release_semantics returns int not long. - -2000-12-17 Andreas Jaeger <aj@suse.de> - - * sysdeps/s390/pt-machine.h (testandset): Use long int as return - value. - * sysdeps/arm/pt-machine.h (testandset): Likewise. - * sysdeps/hppa/pt-machine.h (testandset): Likewise. - * sysdeps/m68k/pt-machine.h (testandset): Likewise. - * sysdeps/sh/pt-machine.h (testandset): Likewise. - * sysdeps/sparc/sparc32/pt-machine.h (testandset): Likewise. - * sysdeps/sparc/sparc64/pt-machine.h (testandset): Likewise. - -2000-12-17 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/pt-machine.h (testandset): Adjust for prototype change. - * sysdeps/i386/i686/pt-machine.h (testandset): Likewise. - -2000-12-17 Andreas Jaeger <aj@suse.de> - - * internals.h: Add prototypes for testandset and - __compare_and_swap to shut up gcc warnings. - -2000-12-06 Wolfram Gloger <wg@malloc.de> - - * join.c (pthread_detach): Allow case where the thread has already - terminated. - -2000-12-05 Andreas Jaeger <aj@suse.de> - - * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Don't set mips2. - * sysdeps/mips/pt-machine.h (testandset): Likewise. - (__compare_and_swap): Likewise. - Patches by Maciej W. Rozycki <macro@ds2.pg.gda.pl>. - -2000-11-20 Jakub Jelinek <jakub@redhat.com> - - * Examples/ex3.c (main): Cast int to long before casting to void *. - (search): Cast void * to long, not int. - * Examples/ex8.c (main, thread): Similarly. - * Examples/ex11.c (main): Similarly. - * Examples/ex14.c (worker, do_test): Similarly. - * ecmutex.c (worker, do_test): Similarly. - (nlocks): Cast to int. - -2000-11-08 Bruce Mitchener <bruce@cubik.org> - - * linuxthreads.texi: Add documentation for pthreads attributes - guardsize, stackaddr, stacksize, and stack. Fix typo in previous - patch. Document pthread_[sg]etconcurrency(). Mark - pthread_mutexattr_[sg]ettype() as POSIX rather than GNU. - -2000-11-07 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_MESSAGE_PASSING): - Don't define it. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - Reported by Christopher Yeoh <cyeoh@linuxcare.com.au>. - -2000-11-06 Ulrich Drepper <drepper@redhat.com> - - * cancel.c (pthread_cancel): Always set p_canceled, even if we are - not doing it right now. - Reported by Kaz Kylheku <kaz@ashi.footprints.net>. - -2000-10-30 Ulrich Drepper <drepper@redhat.com> - - * Examples/ex4.c (main): Don't use exit() to avoid warning with - broken compilers. - -2000-10-29 Ulrich Drepper <drepper@redhat.com> - - * attr.c (__pthread_attr_setguardsize): Don't round guardsize - here. Reported by Bruce Mitchener <bruce@cubik.org>. - - * linuxthreads.texi: Changes terminology to 'type' from 'kind' when - discussing mutexes. (As per the Unix98 name for the API.) - Changes documentation for pthread_mutexattr_setkind_np() and - pthread_mutexattr_getkind_np() over to the Unix98 APIs for the - same: pthread_mutexattr_settype() and pthread_mutexattr_gettype(). - Changes references to PTHREAD_MUTEXATTR_FAST_NP to - PTHREAD_MUTEXATTR_ADAPTIVE_NP. - Begins to introduce discussion of the ``timed'' mutex type. This - discussion is currently incomplete. - Patch by Bruce Mitchener <bruce@cubik.org>. - -2000-10-26 Kazumoto Kojima <kkojima@rr.iij4u.or.jp> - Yutaka Niibe <gniibe@chroot.org> - - * sysdeps/sh/pt-machine.h (testandset): Since the operand of TAS.B - has restrictions, use register. - -2000-10-23 Andreas Schwab <schwab@suse.de> - - * Examples/ex14.c (TIMEOUT): Override default timeout. - -2000-10-16 Ulrich Drepper <drepper@redhat.com> - - * specific.c: Protect tsd array modification in thread data - structures by getting the thread lock in pthread_key_delete and - __pthread_destroy_specifics. - Patch by Wolfram Gloger <Wolfram.Gloger@dent.med.uni-muenchen.de>. - -2000-10-12 Alan Modra <alan@linuxcare.com.au> - - * sysdeps/pthread/bits/initspin.h: New file. - * spinlock.h: Move LOCK_INITIALIZER definition to <bits/initspin.h>. - (__pthread_init_lock): Initialize lock with LT_SPINLOCK_INIT. - (__pthread_alt_init_lock): Likewise. - (__pthread_alt_trylock): Release lock with LT_SPINLOCK_INIT. - -2000-10-12 David Huggins-Daines <dhd@linuxcare.com> - - * oldsemaphore.c (__old_sem_init): Release lock with - LT_SPINLOCK_INIT, not zero. - * spinlock.c (__pthread_unlock): Likewise. - (__pthread_alt_lock): Likewise. - (__pthread_alt_timedlock): Likewise. - (__pthread_alt_unlock): Likewise. - * sysdeps/pthread/bits/libc-lock.h: Initialize locks with - LT_SPINLOCK_INIT if it is non-zero. Likewise for init-once flags. - * sysdeps/pthread/pthread.h: Include bits/initspin.h. Use - LT_SPINLOCK_INIT do initialize spinlocks not 0. - -2000-10-12 David Huggins-Daines <dhd@linuxcare.com> - - * shlib-versions: Add version definitions for hppa-linux. - -2000-10-12 Alan Modra <alan@linuxcare.com.au> - - * sysdeps/hppa/pspinlock.c: New file. - * sysdeps/hppa/pt-machine.h: New file. - * sysdeps/unix/sysv/linux/hppa/bits/initspin.h: New file. - -2000-10-05 Jakub Jelinek <jakub@redhat.com> - - * mutex.c (__pthread_mutex_destroy): Correct test of - busy mutex for mutexes using alternate fastlocks. - Patch by dtc@cmucl.cons.org. - -2000-09-28 Martin Schwidefsksy <schwidefsky@de.ibm.com> - - * sysdeps/s390/pt-machine.h: Make %a0 the thread register. - -2000-09-28 Ulrich Drepper <drepper@redhat.com> - - * mutex.c (__pthread_mutex_unlock): For PTHREAD_MUTEX_RECURSIVE_NP - test for owner first. - Patch by Kaz Kylheku <kaz@ashi.footprints.net>. - - * cancel.c (pthread_cancel): Don't do anything if cancelation is - disabled. - -2000-09-26 Ulrich Drepper <drepper@redhat.com> - - * spinlock.h (__pthread_set_own_extricate_if): Optimize a bit. - Patch by Kaz Kylheku <kaz@ashi.footprints.net>. - - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Remove - _POSIX_MONOTONIC_CLOCK. - - * spinlock.h (__pthread_set_own_extricate_if): Add back locking - and explain why. - -2000-09-20 Andreas Jaeger <aj@suse.de> - - * pthread.c [!__ASSUME_REALTIME_SIGNALS]: Make inclusion of - "testrtsig.h" conditional. - -2000-09-11 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/pthread.h: Declare pthread_attr_getstack and - pthread_attr_setstack. - * Versions [libpthread] (GLIBC_2.2): Export pthread_attr_getstack and - pthread_attr_setstack. - * attr.c (pthread_attr_getstack, pthread_attr_setstack): New functions. - -2000-09-05 Ulrich Drepper <drepper@redhat.com> - - * Examples/ex14.c: New file. - * Makefile (tests): Add ex14. - - * mutex.c (__pthread_mutex_unlock): Correct test for already unlocked - mutex. Patch by dtc@cmucl.cons.org. - - * ecmutex.c: New file. - * Makefile (tests): Add ecmutex. - -2000-09-04 H.J. Lu <hjl@gnu.org> - - * attr.c (__pthread_attr_setguardsize): Use page_roundup - instead of roundup to round up to the page size. - -2000-09-03 Mark Kettenis <kettenis@gnu.org> - - * manager.c (pthread_exited): Correctly report event as TD_REAP - instead of TD_DEATH. Fix comments. - -2000-09-03 Ulrich Drepper <drepper@redhat.com> - - * spinlock.h (testandset): Add cast to avoid warning. - Patch by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>. - -2000-09-02 Andreas Jaeger <aj@suse.de> - - * sysdeps/pthread/timer_routines.c: Include stdlib.h for abort - prototype. - -2000-09-01 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/bits/stdio-lock.h (_IO_cleanup_region_start): - Fix typo in last patch (_mode -> _flags). - - * sysdeps/pthread/bits/stdio-lock.h (_IO_cleanup_region_start): - Provide definition which respects _IO_USER_LOCK flag. - -2000-08-30 Ulrich Drepper <drepper@redhat.com> - - * manager.c (pthread_allocate_stack): Clear descriptor only if not - mmaped. - -2000-08-25 Ulrich Drepper <drepper@redhat.com> - - * Makefile: Add rules to build and run unload. - * unload.c: New file. - - * pthread.c (pthread_exit_process): Move thread_self use inside `if'. - - * sysdeps/pthread/pthread.h - (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP): Defined. - (PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP: Defined. - -2000-08-24 Andreas Jaeger <aj@suse.de> - - * Examples/ex13.c: Include <string.h> for strerror prototype and - <stdlib.h> for abort prototype. - (pthr_cond_signal_mutex): Rewrite to silence GCC. - (thread_start): Remove unused variable err. - (main): Silence GCC warnings. - -2000-08-22 Andreas Jaeger <aj@suse.de> - - * Examples/ex13.c: New test by Kurt Garloff <garloff@suse.de>. - - * Makefile (tests): Add ex13. - -2000-08-20 Ulrich Drepper <drepper@redhat.com> - - * semaphore.h: Add restrict where required by AGd4. - * sysdeps/pthread/pthread.h: Likewise. - * sysdeps/pthread/unix/sysv/linux/bits/sigthread.h: Likewise. - -2000-08-15 Ulrich Drepper <drepper@redhat.com> - - * Makefile (tests): Add ex12. Add rule to build it. - * Examples/ex12.c: New file. - -2000-08-13 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_SEMAPHORES - even though the implementation is not quite complete (but it reports - it). Define _POSIX_MESSAGE_PASSING to -1. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - -2000-08-12 Andreas Jaeger <aj@suse.de> - - * sysdeps/mips/pt-machine.h (testandset): Add .set mips2 for - assembler. - (__compare_and_swap): Likewise. - * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Likewise. - -2000-08-10 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (__pthread_initial_thread): Initialize p_errnop and - p_h_errnop correctly and not to NULL. - -2000-08-05 Ulrich Drepper <drepper@redhat.com> - - * Banner: Bump version number to 0.9. - -2000-08-04 Ulrich Drepper <drepper@redhat.com> - - * Makefile (tests): Add tststack. Add rule to build the program. - * tststack.c: New file. - - * internals.h: Declare __pthread_max_stacksize. - * pthread.c (__pthread_max_stacksize): New variable. - (__pthread_initialize_manager): Determine __pthread_initialize_manager - value. - * manager.c (thread_segment): Return always NULL if FLOATING_STACKS. - (pthread_allocate_stack): Allow kernel to choose stack address if - FLOATING_STACKS. This also handles variable-sized stacks. - Always allocate stack and guardpage together. Use mprotect to - change guardpage access. - * sysdeps/i386/useldt.h: Define FLOATING_STACKS and - ARCH_STACK_MAX_SIZE. - - * attr.c (__pthread_attr_setstacksize): Also test value against - upper limit. - - * manager.c (__pthread_nonstandard_stacks): Define only if - THREAD_SELF is not defined. - (pthread_allocate_stack): Always initialize gardaddr to a correct - value. - (pthread_handle_create): Unmap thread with one call. - (pthread_free): Remove test for initial thread before removing stack. - Unmap stack with one call. - - * pthread.c (__pthread_initial_thread): Initialize p_userstack to - 1 to avoid removing the stack. - -2000-07-27 Jes Sorensen <jes@linuxcare.com> - - * sysdeps/ia64/pspinlock.c (__pthread_spin_lock): Add - load of spin lock to prime the cache before the atomic compare and - exchange operation (cmpxchg4). This avoids the spinning on the - cmpxchg4 instruction and reduces movement of the cache line back - and forth between the processors (explanation by Asis K. Mallick - from Intel). This basically makes the implementation operate the - same as the Linux kernel implementation. - - * shlib-versions: Use GLIBC_2_2 for Linux/ia64. - * sysdeps/ia64/pspinlock.c: New file. - -2000-08-03 Ulrich Drepper <drepper@redhat.com> - - * pthread.c: Move definition of __pthread_set_own_extricate_if... - * spinlock.h: ...here. Remove locking. - * internals.h: Remove __pthread_set_own_extricate_if prototype. - - * rwlock.c: Use THREAD_GETMEM And THREAD_SETMEM. - (rwlock_rd_extricate_func): Don't determine self, let - __pthread_lock do it. - (rwlock_wr_extricate_func): Likewise. - (rwlock_have_already): Optimize *pself handling a bit. - - * mutex.c: Use __builtin_expect. - * pthread.c: Likewise. - -2000-08-02 Andreas Jaeger <aj@suse.de> - - * sysdeps/s390/pspinlock.c: New file. - * sysdeps/s390/pt-machine.h: New file. - Patches by Martin Schwidefsky <schwidefsky@de.ibm.com>. - -2000-07-12 Maciej W. Rozycki <macro@ds2.pg.gda.pl> - - * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Implement for - R3K. - * sysdeps/mips/pt-machine.h (testandset): Likewise. - -2000-07-26 Andreas Jaeger <aj@suse.de> - - * pthread.c: Initialize p_sem_avail. - -2000-07-25 Ulrich Drepper <drepper@redhat.com> - - * internals.h (struct __pthread_descr_struct): Add p_sem_avail. - * semaphore.c: Handle spurious wakeups. - - * sysdeps/pthread/pthread.h: Add back PTHREAD_MUTX_FAST_NP as an alias - for PTHREAD_MUTEX_ADAPTIVE_NP for source code compatibility. - - * pthread.c (__pthread_set_own_extricate): Use THREAD_GETMEM. - (__pthread_wait_for_restart): Likewise. - - * condvar.c (pthread_cond_wait): Also check whether thread is - cancelable before aborting loop. - (pthread_cond_timedwait): Likewise. - - * signals.c (pthread_sighandler): Remove special code to restrore - %gs on x86. - (pthread_sighandler_t): Likewise. - -2000-07-25 Mark Kettenis <kettenis@gnu.org> - - * internals.h (__RES_PTHREAD_INTERNAL): Remove define. - * pthread.c: Include <resolv.h>. - (_res): Undefine. Add extern declaration. - -2000-07-24 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (__pthread_initial_thread): Update initializer. - (__pthread_manager_thread): Likewise. - (pthread_initialize): Move setrlimit call to... - (__pthread_initialize_manager): ...here. - (__pthread_reset_main_thread): Reset also soft limit on stack size. - - * condvar.c: Handle spurious wakeups. [PR libc/1749]. - * internals.h (struct _pthread_descr_struct): Add p_condvar_avail. - -2000-07-21 Ulrich Drepper <drepper@redhat.com> - - * spinlock.h: If IMPLEMENT_TAS_WITH_CAS is defined use - __compare_and_swap to define testandset. - * sysdeps/powerpc/pt-machine.h: Add volatile to asms. - Define IMPLEMENT_TAS_WITH_CAS. - -2000-07-20 Ulrich Drepper <drepper@redhat.com> - - * Makefile: Pass -z nodelete to linker for libpthread.so - generation if it understand this option. - -2000-07-18 Mark Kettenis <kettenis@gnu.org> - - * manager.c (pthread_handle_create): Remove initialization of - new_thread->p_res._sock. - -2000-07-19 Kaz Kylheku <kaz@ashi.footprints.net> - - Bugfixes to the variant of the code for machines with no compare - and swap. - - * spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Wait - node was not being properly enqueued, due to failing to update - the lock->__status field. - - * spinlock.c (__pthread_alt_timedlock): The oldstatus variable was - being set inappropriately, causing the suspend function to be called - with a null self pointer and crash. - -2000-07-18 Ulrich Drepper <drepper@redhat.com> - - * spinlock.h (__pthread_alt_trylock): Fix code used if no - compare&swap is available. - - * spinlock.h (__pthread_trylock): Use __compare_and_swap, not - compare_and_swap. - - * pthread.c (pthread_initialize): Don't use sysconf to determine - whether the machine has more than one processor. - - * spinlock.c (__pthread_alt_timedlock): Add back one of the - removed thread_self calls. - -2000-07-18 Kaz Kylheku <kaz@ashi.footprints.net> - - * spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Changed - __compare_and_swap to compare_and_swap in code which assumes - compare swap is available. - -2000-07-18 Kaz Kylheku <kaz@ashi.footprints.net> - - * spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Fixed - bug whereby thr field of waitnode structure would not be correctly - set unless a null self pointer is passed to the functions. - Eliminated redundant calls to thread_self(). - -2000-07-18 Jakub Jelinek <jakub@redhat.com> - - * pthread.c (__pthread_initialize_manager): Lock - __pthread_manager_thread.p_lock before calling clone. - -2000-05-05 H.J. Lu <hjl@gnu.org> - - * sysdeps/ia64/pt-machine.h (__compare_and_swap): Change it to - have acquire semantics. - (__compare_and_swap_with_release_semantics): New inline - function. - (HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS): New macro. - -2000-01-28 Hans Boehm <hboehm@exch.hpl.hp.com> - - * manager.c: Fix the problem with signals at startup. - Change the way that thread stacks are allocated on IA64. - Clean up some of the guard page allocation stuff. - -1999-12-19 H.J. Lu <hjl@gnu.org> - - * internals.h (page_roundup): New. - * attr.c (__pthread_attr_setguardsize); Use page_roundup - instead of roundup. - * manager.c (pthread_allocate_stack): Make sure guardaddr is - page aligned with page_roundup if NEED_SEPARATE_REGISTER_STACK - is define. - -1999-12-17 Hans Boehm <hboehm@exch.hpl.hp.com> - - * manager.c (pthread_allocate_stack): Unmap the stack top - if failed to map the stack bottom. - Fix the guard page. - (pthread_free): Fix the guard page. - - * pthread.c (pthread_initialize): Set rlimit correctly for - NEED_SEPARATE_REGISTER_STACK. - -1999-12-16 H.J. Lu <hjl@gnu.org> - - * pthread.c (__pthread_initialize_manager): Pass - __pthread_manager_thread_bos instead of - __pthread_manager_thread_tos to __clone2. - -1999-12-16 H.J. Lu <hjl@gnu.org> - - * manager.c (pthread_allocate_stack): Correct the calculation - of "new_thread_bottom". Remove MAP_GROWSDOWN from mmap for - stack bottom. - -1999-12-13 H.J. Lu <hjl@gnu.org> - - * sysdeps/ia64/pt-machine.h (__compare_and_swap): Added a stop - bit after setting ar.ccv. - -1999-12-12 H.J. Lu <hjl@gnu.org> - - * manager.c (pthread_allocate_stack): Make the starting - address of the stack bottom page aligned. FIXME: it may - need changes in other places. - (pthread_handle_create): Likewise. - -1999-12-11 Hans Boehm <hboehm@exch.hpl.hp.com> - - * manager.c (pthread_allocate_stack): Handle - NEED_SEPARATE_REGISTER_STACK. - (pthread_handle_create): Likewise. - * pthread.c (__pthread_initialize_manager): Likewise. - - * sysdeps/ia64/pt-machine.h: Use r13 for thread pointer. - -1999-12-02 H.J. Lu <hjl@gnu.org> - - * sysdeps/ia64/pt-machine.h: New. - -2000-07-13 Ulrich Drepper <drepper@redhat.com> - - * wrapsyscall.c: Mark non-__ protected names as weak. - PR libc/1466. - -2000-07-12 Bruno Haible <haible@clisp.cons.org> - - * Examples/ex8.c: Include <sys/wait.h>, not <wait.h>. - -2000-07-12 Ulrich Drepper <drepper@redhat.com> - - * spinlock.c: Fix code for TEST_FOR_COMPARE_AND_SWAP being defined. - Add tests also to new alternative spinlock implementation. - * spinlock.h: Likewise. - Patch by Kaz Kylheku <kaz@ashi.footprints.net>. - -2000-07-06 Ulrich Drepper <drepper@redhat.com> - - * Version: Export __sigaction. - * signals.c: Define __sigaction alias. Use __libc_sigaction instead - of __sigaction. - * pthread.c: Use __libc_sigaction instead of __sigaction. - - * condvar.c: Implement pthread_condattr_getpshared and - pthread_condattr_setpshared. - * mutex.c: Implement pthread_mutexattr_getpshared and - pthread_mutexattr_setpshared. - * Versions: Export new functions. - * sysdeps/pthread/pthread.h: Add prototypes for new functions. - - * rwlock.c (pthread_rwlockattr_init): Use PTHREAD_PROCESS_PRIVATE. - (pthread_rwlockattr_setpshared): Fail if PTHREAD_PROCESS_PRIVATE - is not selected. - -2000-07-04 Greg McGary <greg@mcgary.org> - - * sysdeps/pthread/bits/libc-lock.h: Remove BP_SYM from - pragmas. Include bp-sym.h only if _LIBC. - -2000-07-04 Ulrich Drepper <drepper@redhat.com> - - * spinlock.c (__pthread_unlock): Properly place write barrier. - Patch by Kaz Kylheku <kaz@ashi.footprints.net>. - -2000-07-03 Ulrich Drepper <drepper@redhat.com> - - * spinlock.c: Replace fast spinlocks by adaptive spinlocks which are - faster on SMP systems. No more emulation of compare&swap for adaptive - spinlocks. - * spinlock.h: Likewise. - * sysdeps/pthread/pthread.h: Shuffle PTHREAD_MUTEX_* values around. - Replace fast with adaptive mutex. - * mutex.c: Rewrite for replacement of fast by adaptive mutex. - * condvar.c: Likewise. - * pthread.c: Define and initialize __pthread_smp_kernel variable. - * internals.h: Declare __pthread_smp_kernel. - * sysdeps/pthread/bits/pthreadtypes.h: Update comment of - _pthread_fastlock structure. - Patch by Kaz Kylheku <kaz@ashi.footprints.net>. - - * pthread.c: Remove initialization to zero from global variables. - -2000-06-29 Jakub Jelinek <jakub@redhat.com> - - * shlib-versions: Make sparc64 GLIBC_2.2+ only. - -2000-06-28 Greg McGary <greg@mcgary.org> - - * weaks.c: Wrap BP_SYM () around weak extern declarations of - pthread functions that have pointers in their return+arg signatures. - -2000-06-27 Greg McGary <greg@mcgary.org> - - * sysdeps/pthread/bits/libc-lock.h: Wrap BP_SYM () around weak - extern declarations of pthread functions that have pointers in - their return+arg signatures. - -2000-06-26 Ulrich Drepper <drepper@redhat.com> - - * Makefile (tests): Add ex11. Add rules to build it. - * Examples/ex11.c: New file. - * rwlock.c: Fix complete braindamaged previous try to implement - timedout functions. - - * spinlock.c: Pretty print. - -2000-06-25 Ulrich Drepper <drepper@redhat.com> - - * Makefile (tests): Add ex10. Add rules to build it. - * Versions [GLIBC_2.2] (libpthread): Add pthread_mutex_timedlock, - pthread_rwlock_timedrdlock, and pthread_rwlock_timedwrlock. - * condvar.c (pthread_cond_wait): Allow mutex of kind - PTHREAD_MUTEX_TIMED_NP. - (pthread_cond_timedwait_relative): Likewise. - * mutex.c (__pthread_mutex_init): Default is PTHREAD_MUTEX_TIMED_NP. - (__pthread_mutex_trylock): Use __pthread_alt_trylock for - PTHREAD_MUTEX_ERRORCHECK_NP. Handle PTHREAD_MUTEX_TIMED_NP. - (__pthread_mutex_lock): Use __pthread_alt_lock for - PTHREAD_MUTEX_ERRORCHECK_NP. Handle PTHREAD_MUTEX_TIMED_NP. - (__pthread_mutex_timedlock): New function. - (__pthread_mutex_unlock): Use __pthread_alt_unlock for - PTHREAD_MUTEX_ERRORCHECK_NP. Handle PTHREAD_MUTEX_TIMED_NP. - (__pthread_mutexattr_init): Use PTHREAD_MUTEX_TIMED_NP. - (__pthread_mutexattr_settype): Allow PTHREAD_MUTEX_TIMED_NP. - * spinlock.c: Implement alternate fastlocks. - * spinlock.h: Add prototypes. - * Examples/ex10.c: New file. - * sysdeps/pthread/pthread.h: Add prototypes for new functions. - Patch by Kaz Kylheku <kaz@ashi.footprints.net>. - - * rwlock.c (__pthread_rwlock_rdlock): Optimize loop a bit. - (__pthread_rwlock_timedrdlock): New function. - (__pthread_rwlock_timedwrlock): New function. - Use laternate fastlock function everywhere. - -2000-06-21 Andreas Jaeger <aj@suse.de> - - * sysdeps/pthread/timer_routines.c: Include <string.h> for memset - prototype. - - * join.c: Include <stdlib.h> for exit prototype. - -2000-06-20 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/useldt.h: Include <stdlib.h>. - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_BARRIERS. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - - * Makefile (libpthread-routines): Add barrier. - (tests): Add ex9. Add rule to build ex9. - * Versions: Export barrier functions. - * barrier.c: New file. - * Examples/ex9.c: New file. - * sysdeps/pthread/pthread.h: Add barrier data types and declarations. - * sysdeps/pthread/bits/pthreadtypes.h: Likewise. - Patch by Kaz Kylheku <kaz@ashi.footprints.net>. - -2000-06-19 H.J. Lu <hjl@gnu.org> - - * spinlock.h (HAS_COMPARE_AND_SWAP): Defined if - HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS is defined. - (compare_and_swap_with_release_semantics): New. Default to - compare_and_swap if HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS - is not defined. - - * spinlock.c (__pthread_unlock): Call - compare_and_swap_with_release_semantics () instead of - compare_and_swap (). - -2000-06-19 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/timer_create.c: Use _set_errno instead of assigning - to errno directly. - * sysdeps/pthread/timer_delete.c: Likewise. - * sysdeps/pthread/timer_getoverr.c: Likewise. - * sysdeps/pthread/timer_gettime.c: Likewise. - * sysdeps/pthread/timer_settime.c: Likewise. - -2000-06-13 Kaz Kylheku <kaz@ashi.footprints.net> - - Timer nodes are now reference counted, and can be marked - as deleted. This allows for the safe release of the global mutex - in the middle without losing the timer being operated on. - - * sysdeps/pthread/posix-timer.h (struct timer_node): The inuse - member is now an enum with three values, so that an intermediate - state can be represented (deleted but not free for reuse yet). - New refcount member added. - * sysdeps/pthread/timer_routines.c: Likewise. - - * sysdeps/pthread/posix-timer.h (timer_addref, timer_delref, - timer_valid): New inline functions added. - - * sysdeps/pthread/timer_gettime.c (timer_gettime): Function - restructured, recursive deadlock bug fixed. - - * sysdeps/pthread/timer_gettime.c (timer_gettime): Uses new - timer_addref to ensure that timer won't be deleted while mutex is not - held. Also uses timer_invalid to perform validation of timer handle. - * sysdeps/pthread/timer_settime.c (timer_settime): Likewise. - * sysdeps/pthread/timer_getoverr.c (timer_getoverrun): Likewise. - -2000-06-14 Ulrich Drepper <drepper@redhat.com> - - * shlib-versions: Add entry for SH. - Patch by Kaz Kojima <kkojima@rr.iij4u.or.jp>. - -2000-06-13 Kaz Kylheku <kaz@ashi.footprints.net> - - A few optimizations. Got rid of unnecessary wakeups of timer threads, - tightened up some critical regions and micro-optimized some list - manipulation code. - - * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer): - Returns int value now to indicate whether timer was queued at head. - * sysdeps/pthread/posix-timer.h: Likewise. - * sysdeps/pthread/timer_settime.c (timer_settime): Takes advantage of - new return value from __timer_thread_queue_timer to avoid waking - up timer thread unnecessarily. - - * sysdeps/pthread/posix-timer.h (timer_id2ptr): No longer checks - inuse flag, because this requires mutex to be held. Callers updated - to do the check when they have the mutex. - * sysdeps/pthread/timer_getoverr.c: Add check for inuse here. - - * sysdeps/pthread/timer_settime.c (timer_settime): Tighter critical - regions: avoids making system calls while holding timer mutex, and - a few computations were moved outside of the mutex as well. - * sysdeps/pthread/timer_gettime.c (timer_gettime): Likewise. - - * sysdeps/pthread/posix-timer.h (list_unlink_ip): Function name changed - to list_unlink_ip, meaning idempotent. Pointer manipulation - changed to get better better code out of gcc. - * sysdeps/pthread/timer_routines.c (list_unlink): Non-idempotent - version of list_unlink added here. - * sysdeps/pthread/timer_delete.c: Use appropriate list unlink - function in all places: idempotent one for timers, non-idempotent - one for thread nodes. - * sysdeps/pthread/timer_settime: Likewise. - * sysdeps/pthread/timer_routines.c: Likewise. - -2000-06-13 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_TIMERS): Define. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - - * sysdeps/pthread/Makefile: Remove tests definition. - -2000-06-12 Kazumoto Kojima <kkojima@rr.iij4u.or.jp> - Yutaka Niibe <gniibe@chroot.org> - - * sysdeps/sh/pspinlock.c: New file. - * sysdeps/sh/pt-machine.h: New file. - -2000-06-12 Ulrich Drepper <drepper@redhat.com> - - * Makefile (tests): Add joinrace. - - * Examples/ex6.c: Test return value of pthread_join. - -2000-06-11 Geoff Keating <geoffk@cygnus.com> - - * sysdeps/powerpc/pspinlock.c (__pthread_spin_lock): Implement. - (__pthread_spin_trylock): Implement. - (__pthread_spin_unlock): Implement. - (__pthread_spin_init): Implement. - (__pthread_spin_destroy): Implement. - -2000-06-10 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/timer_routines.c (list_append): Little fix to - really append the entry. - -2000-06-10 Andreas Jaeger <aj@suse.de> - - * lockfile.c (__fresetlockfiles): Remove unused variable fp. - -2000-06-10 Kaz Kylheku <kaz@ashi.footprints.net> - - * sysdeps/pthread/timer_create.c: Thread matching now done on - clock type as well as thread attributes. - There are individual global signal-delivering threads for - different clock types. - * sysdeps/pthread/posix-timer.h: Likewise. - * sysdeps/pthread/timer_routines.c: Likewise. - - * sysdeps/pthread/timer_routines.c: Thread allocation and - deallocation function now remembers to put thread on active - list and remove from active list. - Thus now the feature of binding multiple timers - to a single thread actually works. - -2000-06-10 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (__pthread_create_2_1): Optimize a bit. - - * internals.h (invalid_handle): Also test for p_terminated != 0. - (nonexisting_handle): New function. Same as old invalid_handle. - * join.c (pthread_join): Use nonexisting_handle instead of - invalid_handle to test for acceptable thread handle. - * manager.c (pthread_handle_free): Likewise. - * joinrace.c: New file. - Reported by Permaine Cheung <pcheung@cygnus.com>. - -2000-06-08 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer): - Correct handling of matching variable. - - * sysdeps/pthread/tst-timer.c (main): Rewrite initializers to - avoid warnings. - - * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer): - Be prepared for empty timer list. - - * sysdeps/pthread/timer_create.c (timer_create): Correct names of - CPUTIME clock ID. Add support for thread clocks. - - * sysdeps/pthread/posix-timer.h (timer_ptr2id): Operands in - subtraction were switched. - - * sysdeps/pthread/timer_routines.c (init_module): Use - THREAD_MAXNODES threads. - - * sysdeps/pthread/posix-timer.h (struct timer_node): Add creator_pid. - * sysdeps/pthread/timer_create.c: Fill in creator_pid. - * sysdeps/pthread/timer_routines.c (thread_expire_timer): Send signal - with sigqueueinfo is this system call is available. - - * sysdeps/pthread/timer_create.c (timer_create): Allow - CLOCK_CPUTIME if _POSIX_CPUTIME is defined. - - * sysdeps/pthread/Makefile: New file. Add rules to build timer - functionality. - * sysdeps/unix/sysv/linux/bits/local_lim.h: Add TIMER_MAX. - -2000-06-04 Kaz Kylheku <kaz@ashi.footprints.net> - - * sysdeps/pthread/posix-timer.h: New file. - * sysdeps/pthread/timer_create.c: New file. - * sysdeps/pthread/timer_delete.c: New file. - * sysdeps/pthread/timer_getoverr.c: New file. - * sysdeps/pthread/timer_gettime.c: New file. - * sysdeps/pthread/timer_routines.c: New file. - * sysdeps/pthread/timer_settime.c: New file. - * sysdeps/pthread/tst-timer.c: New file. - -2000-06-08 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/bits/local_lim.h: Remove OPEN_MAX and - LINK_MAX definitions if necessary. - -2000-06-04 Kaz Kylheku <kaz@ashi.footprints.net> - - Added missing fork time handling of global libio lock. - - * lockfile.c (__fresetlockfiles): Now also resets the list lock, - not just the individual stream locks. Rewritten to use new - iterator interface provided by libio rather than accessing - global variable. - - * lockfile.c (__flockfilelist, _funlockfilelist): New functions - which lock and unlock the stream list using the new interface - provied by libio. - * internals.h: Likewise. - - * ptfork.c (__fork): Now calls __flockfilelist before fork, - and __funlockfilelist in the parent after the fork. - Child still calls __fresetlockfiles as before. - - * linuxthreads.texi: Now explains what happens to streams at - fork time. Also whole new section on forking and thread added. - Definition of pthread_atfork moved out of Miscellaneous Functions - to this new section. - -2000-06-04 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/sparc/sparc32/sparcv9/pspinlock.c (__pthread_spin_lock): - Add missing register. - * sysdeps/sparc/sparc64/pspinlock.c (__pthread_spin_lock): Likewise. - -2000-06-02 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/sparc/sparc32/pspinlock.c: Implement spinlocks. - * sysdeps/sparc/sparc32/sparcv9/pspinlock.c: New. - * sysdeps/sparc/sparc64/pspinlock.c: Implement spinlocks. - -2000-05-31 Andreas Jaeger <aj@suse.de> - - * sysdeps/mips/pspinlock.c: Implement spinlocks. - -2000-05-28 Ulrich Drepper <drepper@redhat.com> - - * spinlock.c (__pthread_lock): Remove ASSERT. - - * Makefile (tests): Add ex8. - * Examples/ex8.c: New file. - -2000-05-12 Kaz Kylheku <kaz@ashi.footprints.net> - - Bugfix: The pthread_atfork mechanism now takes care of its - own internal mutex at fork time. - - * ptfork.c (__fork): Revised so that the mutex is held across - the fork operation and while the handlers are called, and so that - the child resets the mutex. - - * linuxthreads.texi: Updated pthread_atfork documentation to make - it clear that fork and pthread_atfork can't be reentered from - atfork handlers, that pthread_atfork and fork are mutually atomic, - and that the handlers are inherited by the child process. - -2000-05-24 Ulrich Drepper <drepper@redhat.com> - - * Makefile (libpthread-routines): Add pspinlock. - * cancel.c: Rename __pthread_spin_unlock back to __pthread_unlock. - Use struct _pthread_fastlock instead of pthread_spinlock_t. - * condvar.c: Likewise. - * internals.h: Likewise. - * join.c: Likewise. - * manager.c: Likewise. - * mutex.c: Likewise. - * pthread.c: Likewise. - * rwlock.c: Likewise. - * semaphore.c: Likewise. - * signals.c: Likewise. - * spinlock.h: Likewise. - * spinlock.c: Likewise. Remove pthread_spin_lock functions. - * sysdeps/alpha/pspinlock.c: New file. - * sysdeps/arm/pspinlock.c: New file. - * sysdeps/i386/pspinlock.c: New file. - * sysdeps/m68k/pspinlock.c: New file. - * sysdeps/mips/pspinlock.c: New file. - * sysdeps/powerpc/pspinlock.c: New file. - * sysdeps/sparc/sparc32/pspinlock.c: New file. - * sysdeps/sparc/sparc64/pspinlock.c: New file. - * sysdeps/pthread/bits/pthreadtypes.h: Remove pthread_spinlock_t - back to _pthread_fastlock. Define new pthread_spinlock_t. - -2000-05-24 Andreas Jaeger <aj@suse.de> - - * sysdeps/i386/i686/pt-machine.h: Only use LDT on newer kernels. - -2000-05-21 Jakub Jelinek <jakub@redhat.com> - - * manager.c (pthread_handle_create): Initialize p_res._sock to -1. - -2000-05-13 Jakub Jelinek <jakub@redhat.com> - - * internals.h (__RES_PTHREAD_INTERNAL): Define. - -2000-05-06 Kaz Kylheku <kaz@ashi.footprints.net> - - * mutex.c (pthread_once): IN_PROGRESS state of pthread_once_t - object state is represented with additional bits which distinguish - whether that state was set up in the current process, or - in an ancestor process. If that state was set in an ancestor, - it means that a fork happened while thread was executing the init - function. In that case, the state is reset to NEVER. - * mutex.c (__pthread_once_fork_prepare): New function. - (__pthread_once_fork_child): Likewise - (__pthread_once_fork_parent): Likewise - (__pthread_reset_pthread_once): Removed. - * ptfork.c (__fork): Call new handlers in mutex.c. - * internals.h: Declarations of new mutex.c functions added. - Declaration of removed function deleted. - * linuxthreads.texi: Updated documentation about pthread_once - to clarify what happens under cancellation and forking. - -2000-05-06 Kaz Kylheku <kaz@ashi.footprints.net> - - * internals.h: New thread manager request type, REQ_KICK. - * join.c (pthread_exit): main thread now calls exit() instead - of _exit() in order to proper process cleanup. - * manager.c (__pthread_manager): Do not terminate manager - after unblocking main thread; wait for main thread's - REQ_PROCESS_EXIT request instead. - Also, added REQ_KICK case to handle new request; this just does - nothing. - * manager.c (pthread_exited): Do not terminate manager after - unblocking main thread. - * manager.c (__pthread_manager_sighandler): If the main thread - is waiting for all other threads to die, send a REQ_KICK into - the thread manager request pipe to get it to clean out the threads - and unblock the main thread as soon as possible. This fixes - the 2000 millisecond hang on shutdown bug. - * Examples/ex7.c: New file, tests shutdown behavior when all threads - including the main one call pthread_exit(), or implicitly do so. - * Makefile (tests): Add ex7. - -2000-05-05 Andreas Jaeger <aj@suse.de> - - * sysdeps/unix/sysv/linux/i386/getcpuclockid.c - (pthread_getcpuclockid): Correct test for ourselves. - -2000-05-05 Ulrich Drepper <drepper@redhat.com> - - * internals.h (struct _pthread_descr_struct): Reorganization. - Allocate room for 16 pointers at head of the structure for future - thread-local data handling. Move p_self member in this area. - * manager.c (pthread_handle_create): Adjust use of p_self. - * sysdeps/i386/useldt.h (THREAD_SELF): Likewise. - * pthread.c (__pthread_initial_thread): Adjust initialization. - (__pthread_manager_thread): Likewise. - -2000-04-29 Bruno Haible <haible@clisp.cons.org> - - * join.c (pthread_exit): Use THREAD_GETMEM_NC instead of THREAD_GETMEM - for eventmask larger than 1 word. - -2000-04-27 Ulrich Drepper <drepper@redhat.com> - - * Versions [libpthread] (GLIBC_2.2): Add __pthread_initialize_minimal. - * pthread.c (__pthread_initialize_minimal): New function. Perform - minimal initialization. - (pthread_initialize): Remove this code here. - * sysdeps/i386/i686/pt-machine.h: Include "../useldt.h" again. We - are working around the problem in glibc. - -2000-04-25 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/i386/i686/pt-machine.h: Do not use "../useldt.h" for - now. First gcc must be fixed (more concrete: libgcc). - -2000-04-24 Ulrich Drepper <drepper@redhat.com> - - * pthread.c: Remove special treatement for interrupt handlers on x86. - * manager.c (pthread_free): Use FREE_THREAD not FREE_THREAD_SELF. - * sysdeps/i386/useldt.h: Use "q" constraint instead of "r" where - necessary. - * sysdeps/i386/i686/pt-machine.h: Include "../useldt.h". - -2000-04-24 Mark Kettenis <kettenis@gnu.org> - - * join.c (pthread_exit): Set p_terminated after reporting the - termination event instead of before. - -2000-04-20 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/pthread/bits/libc-lock.h: Only declare __pthread_rwlock_* - if __USE_UNIX98. - -2000-04-18 Andreas Jaeger <aj@suse.de> - - * Versions: Use ld instead of ld.so. - -2000-04-18 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h (struct sigcontext): - Remove the typedef keyword. - -2000-04-18 Jakub Jelinek <jakub@redhat.com> - - * sysdeps/sparc/sparc64/pt-machine.h (MEMORY_BARRIER): Use membar, - not stbar. - (READ_MEMORY_BARRIER): Define. - * spinlock.c (__pthread_spin_unlock): Use READ_MEMORY_BARRIER, not - MEMORY_BARRIER. - * internals.h (READ_MEMORY_BARRIER): Define if not defined in sysdep - headers. - -2000-04-17 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/i386/getcpuclockid.c - (pthread_getcpuclockid): Don't compare thread_id with thread_self, - use thread_handle(). - -2000-04-16 Ulrich Drepper <drepper@redhat.com> - - * condvar.c (pthread_cond_timedwait_relative): Don't test for owner - if fast mutex is used. Don't initialize `already_canceled' twice. - Correctly test for return value of timedsuspend. - - * pthread.c: Correct long-time braino. We never set SA_SIGINFO and - therefore don't need the _rt versions of the signal handlers. - -2000-04-15 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (pthread_yield): New function. - * sysdeps/pthread/pthread.h (pthread_yield): Add prototype. - * Versions [libpthread] (GLIBC_2.2): Add pthread_yield. - * internals.h: Declare __pthread_yield. - - * pthread.c (pthread_initialize): Avoid a bit more code if - realtime signals are known to exist. - - * pthread.c: Is __ASSUME_REALTIME_SIGNALS then avoid generating code - to dynamically detect RT signals and avoid generating compatibility - functions with old kernel. - * restart.h (restart) [__ASSUME_REALTIME_SIGNALS]: Use - __pthread_restart_new directly. - (suspend) [__ASSUME_REALTIME_SIGNALS]: Use - __pthread_wait_for_restart_signal directly. - (timedsuspend) [__ASSUME_REALTIME_SIGNALS]: Use - __pthread_timedsuspend_new directly. - -2000-04-15 Ulrich Drepper <drepper@redhat.com> - - * condvar.c: Remove all the special code to handle cond_timedwait. - Use timedsuspend instead. - * internals.h: Declare __pthread_timedsuspend_old, - __pthread_timedsuspend_new, and __pthread_timedsuspend. - Remove declaration of __pthread_init_condvar. - * pthread.c: Define __pthread_timedsuspend variable. - (__pthread_timedsuspend_old): New function. Timed suspension - implementation for old Linux kernels. - (__pthread_timedsuspend_new): New function. Timed suspension - implementation for new Linux kernels. - * restart.h (timedsuspend): New function. Call appropriate - suspension function through __pthread_timedsuspend. - * semaphore.c (sem_timedwait): Use timedsuspend, don't duplicate - the code. - Patch by Kaz Kylheku <kaz@ashi.footprints.net>. - - * internals.h (WRITE_MEMORY_BARRIER): Define as MEMORY_BARRIER if - undefined. - * spinlock.c: Use WRITE_MEMORY_BARRIER instead of MEMORY_BARRIER - where possible. - * sysdeps/alpha/pt-machine.h: Define WRITE_MEMORY_BARRIER. - * sysdeps/sparc/sparc64/pt-machine.h: Likewise. - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add _POSIX_SPAWN. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - -2000-04-14 Andreas Jaeger <aj@suse.de> - - * weaks.c: Fix typo. - - * shlib-versions (mips.*-.*-linux.*): Support only GLIBC 2.0 and - 2.2 for linuxthreads. - -2000-04-13 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/i386/getcpuclockid.c - (pthread_getcpuclockid): Fix typo. - -2000-04-12 Ulrich Drepper <drepper@redhat.com> - - * Makefile (libpthread-routines): Add getcpuclockid. - * Versions [libpthread] (GLIBC_2.2): Add pthread_getcpuclockid. - * sysdeps/pthread/getcpuclockid.c: New file. - * sysdeps/unix/sysv/linux/i386/getcpuclockid.c: New file. - * sysdeps/pthread/pthread.h: Add prototype for pthread_getcpuclockid. - - * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_SPIN_LOCKS): - Defined. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. - - * sysdeps/pthread/pthread.h: Add prototypes for pthread_spin_init, - pthread_spin_destroy, pthread_spin_lock, pthread_spin_trylock, - and pthread_spin_unlock. - * sysdeps/pthread/bits/pthreadtypes.h: Change struct _pthread_fastlock - into pthread_spinlock_t. Change all uses. - * spinlock.c: Implement pthread_spin_lock. - Rename __pthread_unlock to __pthread_spin_unlock and define weak - alias for real name. - Define pthread_spin_trylock, pthread_spin_init, and - pthread_spin_destroy. - Change all uses of _pthread_fastlock to pthread_spinlock_t. - * spinlock.h: Rename __pthread_unlock to __pthread_spin_unlock. - Change all uses of _pthread_fastlock to pthread_spinlock_t. - * Versions [libpthread] (GLIBC_2.2): Add pthread_spin_init, - pthread_spin_destroy, pthread_spin_lock, pthread_spin_trylock, - and pthread_spin_unlock. - * cancel.c: Use __pthread_spin_unlock instead of __pthread_unlock. - Change all uses of _pthread_fastlock to pthread_spinlock_t. - * condvar.c: Likewise. - * internals.h: Likewise. - * join.c: Likewise. - * manager.c: Likewise. - * mutex.c: Likewise. - * pthread.c: Likewise. - * rwlock.c: Likewise. - * semaphore.c: Likewise. - * signals.c: Likewise. - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add various new POSIX - macros. - * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: New file. - -2000-04-11 Ulrich Drepper <drepper@redhat.com> - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add - _POSIX_SHARED_MEMORY_OBJECTS. - -2000-04-11 Andreas Jaeger <aj@suse.de> - - * sysdeps/mips/pt-machine.h (MEMORY_BARRIER): Define. - (__compare_and_swap): Mark as modifying memory. - -2000-04-11 Geoff Keating <geoffk@cygnus.com> - - * sysdeps/powerpc/pt-machine.h (MEMORY_BARRIER): Don't be - __volatile__. - (__compare_and_swap): Replace other 'sync' with MEMORY_BARRIER. - Don't have the 'asm' __volatile__. - -2000-04-11 Ulrich Drepper <drepper@redhat.com> - - * internals.h: Define MEMORY_BARRIER as empty if not defined already. - * spinlock.c (__pthread_lock): Add memory barriers. - (__pthread_unlock): Likewise. - * sysdeps/alpha/pt-machine.h (MEMORY_BARRIER): Define using mb - instruction. - (RELEASE): Not needed anymore. - (__compare_and_swap): Mark asm as modifying memory. - * sysdeps/powerpc/pt-machine.h (sync): Remove. Replace with definition - of MEMORY_BARRIER. - (__compare_and_swap): Use MEMORY_BARRIER instead of sync. - * sysdeps/sparc/sparc32/pt-machine.h (RELEASE): Not needed anymore. - (MEMORY_BARRIER): Define using stbar. - * sysdeps/sparc/sparc64/pt-machine.h (MEMORY_BARRIER): Define using - stbar. - (__compare_and_swap): Use MEMORY_BARRIER to ensure ordering. - Patch by Xavier Leroy <Xavier.Leroy@inria.fr> based on comments by - Mike Burrows <m3b@pa.dec.com>. - -2000-04-09 Ulrich Drepper <drepper@redhat.com> - - * signals.c (sigaction): Fix return value for the case SIG is one - of the signals the implementation uses. - Patch by Xavier.Leroy@inria.fr. - -2000-04-01 Andreas Jaeger <aj@suse.de> - - * attr.c: Use shlib-compat macros. - * oldsemaphore.c: Likewise. - * pthread.c: Likewise. - * weaks.c: Likewise. - -2000-03-26 Ulrich Drepper <drepper@redhat.com> - - * semaphore.c (sem_timedwait): New function. - Patch by Carl Mailloux <carlm@oricom.ca>. - * semaphore.h: Declare sem_timedwait. - * Versions [libpthread] (GLIBC_2.2): Add sem_timedwait. - -2000-03-26 Roland McGrath <roland@baalperazim.frob.com> - - * sysdeps/pthread/Makefile: File removed. - -2000-03-23 Ulrich Drepper <drepper@redhat.com> - - * mutex.c (__pthread_reset_pthread_once): Reset once_masterlock. - * internals.h (__pthread_reset_pthread_once): Add prototype. - * ptfork.c (__fork): Call __pthread_reset_pthread_once. - - * manager.c (pthread_handle_create): Store ID of new thread before - clone call. - -2000-03-21 Ulrich Drepper <drepper@redhat.com> - - * attr.c: Use new macros from shlib-compat.h to define versions. - * oldsemaphore.c: Likewise. - * semaphore.c: Likewise. - * weaks.c: Likewise. - - * pthread.c: Update for new SHLIB_COMPAT definition. - - * manager.c (__pthread_manager): Unmask debug signal. - - * pthread.c (pthread_initialize): Test for address of __dso_handle - being NULL, not value. Use __on_exit, not on_exit. - Patch by Andreas Jaeger <aj@suse.de>. - - * pthread.c: Use new macros from shlib-compat.h to define versions. - -2000-03-19 Ulrich Drepper <drepper@redhat.com> - - * pthread.c (pthread_initialize): Instead of on_exit use - __cxa_atexit if __dso_label is available to allow unloading the - libpthread shared library. - -2000-03-16 Ulrich Drepper <drepper@redhat.com> - - * condvar.c: Make tests for ownership of mutex less strict. - -2000-03-14 Ulrich Drepper <drepper@redhat.com> - - * condvar.c (pthread_cond_wait): Check whether mutex is owned by - current thread and return error if not. - (pthread_cond_timedwait_relative_old): Likewise. - (pthread_cond_timedwait_relative_new): Likewise. - - * mutex.c (__pthread_once): Handle cancelled init function correctly. - (pthread_once_cancelhandler): New function. - Patch by Kaz Kylheku <kaz@ashi.footprints.net>. - -2000-03-14 Andreas Jaeger <aj@suse.de> - - * pthread.c (pthread_handle_sigcancel_rt): GS has been renamed to - REG_GS. - (pthread_handle_sigrestart_rt): Likewise. - * signals.c (pthread_sighandler_rt): Likewise. - -2000-03-02 Andreas Jaeger <aj@suse.de> - - * sysdeps/pthread/bits/libc-lock.h: Fix typo. - Reported by Sean Chen <sean.chen@turbolinux.com>. - -2000-02-28 Andreas Jaeger <aj@suse.de> - - * rwlock.c: Fix typo. - -2000-02-27 Ulrich Drepper <drepper@redhat.com> - - * rwlock.c: Define __* variants of the functions and make old names - aliases. - * Versions [GLIBC_2.2]: Export the __pthread_rwlock_* functions. - * sysdeps/pthread/bits/libc-lock.h: Define __libc_rwlock_* macros. - -2000-02-25 Andreas Jaeger <aj@suse.de> - - * Versions: Export pread, __pread64, pread64, pwrite, __pwrite64, - pwrite64, lseek64, open64, and __open64 with version 2.2. - -2000-02-22 Ulrich Drepper <drepper@redhat.com> - - * semaphore.h (SEM_FAILED): Use 0 not NULL. - -2000-02-14 Ulrich Drepper <drepper@redhat.com> - - * condvar.c (pthread_cond_timedwait_relative_old): Tight loop with - nanosleep does not work either. Get absolute time inside the - loop. - (pthread_cond_timedwait_relative_new): Likewise. - Patch by Kaz Kylheku <kaz@ashi.footprints.net>. - -2000-02-13 Andreas Jaeger <aj@suse.de> - - * condvar.c (pthread_cond_timedwait_relative_new): Fix last patch. - (pthread_cond_timedwait_relative_old): Likewise. - -2000-02-13 Ulrich Drepper <drepper@redhat.com> - - * condvar.c (pthread_cond_timedwait_relative_old): Undo last patch - but keep the code around. A bug in the kernel prevent us from - using the code. - (pthread_cond_timedwait_relative_new): Likewise. - (PR libc/1597 and libc/1598). - -2000-02-01 Kaz Kylheku <kaz@ashi.footprints.net> - - * condvar.c (pthread_cond_timedwait_relative_old): Do tight - loop around nanosleep calls instead of around most of the function - (pthread_cond_timedwait_relative_new): Likewise. - body. Got rid of backwards goto and one local. - -2000-01-31 Ulrich Drepper <drepper@redhat.com> - - * condvar.c (pthread_cond_timedwait_relative_old): Recompute time - before every nanosleep call to account for time spent in the rest - of the function. - (pthread_cond_timedwait_relative_new): Likewise. - Patch by khendricks@ivey.uwo.ca (PR libc/1564). - -2000-01-29 Ulrich Drepper <drepper@redhat.com> - - * condvar.c (pthread_cond_timedwait_relative_old): Get remaining time - from nanosleep call so that in case we restart we only wait for the - remaining time. - (pthread_cond_timedwait_relative_new): Likewise. - Patch by khendricks@ivey.uwo.ca (PR libc/1561). - -2000-01-18 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (pthread_allocate_stack): Compute guard page address - correctly. Patch by HJ Lu. - - * sysdeps/pthread/pthread.h: Define - PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP. - -2000-01-16 Ulrich Drepper <drepper@cygnus.com> - - * rwlock.c (pthread_rwlock_unlock): Correct one more problem with - preference handling. - (pthread_rwlockattr_setkind_np): Allow - PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP. - Patches by Kaz Kylheku <kaz@ashi.footprints.net>. - -2000-01-12 Ulrich Drepper <drepper@cygnus.com> - - * internals.h (pthread_readlock_info): New structure. - (_pthread_descr_struct): Add p_readlock_list, p_readlock_free, and - p_untracked_readlock_count. - * pthread.c (__pthread_initial_thread, pthread_manager_thread): - Add initializers for new fields. - * manager.c (pthread_free): Free read/write lock lists. - * queue.h (queue_is_empty): New function. - * rwlock.c: Implement requirements about when readers should get - locks assigned. - * sysdeps/pthread/pthread.h - (PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP): New definition. - * sysdeps/pthread/bits/pthreadtypes.h (struct _pthread_rwlock_t): - Define this name as well. - Patches by Kaz Kylheku <kaz@ashi.footprints.net>. - -2000-01-05 Ulrich Drepper <drepper@cygnus.com> - - * pthread.c (__pthread_initial_thread, pthread_manager_thread): - Adjust initializers for struct _pthread_descr_struct change. - * internals.h (struct _pthread_descr_struct): Move new elements to - the end. - -2000-01-03 Kaz Kylheku <kaz@ashi.footprints.net> - - Redesigned how cancellation unblocks a thread from internal - cancellation points (sem_wait, pthread_join, - pthread_cond_{wait,timedwait}). - Cancellation won't eat a signal in any of these functions - (*required* by POSIX and Single Unix Spec!). - * condvar.c: Spontaneous wakeup on pthread_cond_timedwait won't eat a - simultaneous condition variable signal (not required by POSIX - or Single Unix Spec, but nice). - * spinlock.c: __pthread_lock queues back any received restarts - that don't belong to it instead of assuming ownership of lock - upon any restart; fastlock can no longer be acquired by two threads - simultaneously. - * restart.h: Restarts queue even on kernels that don't have - queued real time signals (2.0, early 2.1), thanks to atomic counter, - avoiding a rare race condition in pthread_cond_timedwait. - -1999-12-31 Andreas Jaeger <aj@suse.de> - - * internals.h: Remove duplicate prototype declarations. - - * weaks.c: Remove __THROW from prototypes since the file is not - compiled by a C++ compiler. - * internals.h: Likewise. - -1999-12-30 Andreas Jaeger <aj@suse.de> - - * sysdeps/pthread/pthread.h: Move internal functions to... - * sysdeps/pthread/bits/libc-lock.h: ...here. - -1999-12-29 Andreas Jaeger <aj@suse.de> - - * sysdeps/pthread/pthread.h: Fix typos, reformat comments. - -1999-12-28 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/alpha/pt-machine.h: Move stack_pointer definition to the - beginning. - - * manager.c (__pthread_start): Add one more cast to prevent - warning on 64bit machines. - -1999-12-21 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (pthread_handle_create): Set p_pid of new thread - before calling the callback function to report a new thread. - -1999-12-20 Andreas Jaeger <aj@suse.de> - - * pthread.c (pthread_initialize): Move getrlimit call after - setting of errno. - -1999-12-18 Ulrich Drepper <drepper@cygnus.com> - - * Versions: Export pread, __pread64, pread64, pwrite, __pwrite64, - pwrite64, lseek64, open64, and __open64. - * wrapsyscall.c: Define pread, __pread64, pread64, pwrite, __pwrite64, - pwrite64, lseek64, open64, and __open64. - - * manager.c (pthread_allocate_stack): Correct computation of - new_thread_bottom. Correct handling of stack size and when the - rlimit method to guard for stack growth is used. - * pthread.c (pthread_initialize): Stack limit must be STACK_SIZE - minus one pagesize (not two). - -1999-12-03 Andreas Jaeger <aj@suse.de> - - * Versions: Add __res_state with version GLIBC_2.2. - - * errno.c (__res_state): New function to return thread specific - resolver state. - - * pthread.c (pthread_initialize): Initialize p_resp. - (__pthread_reset_main_thread): Also set p_resp. - - * manager.c (pthread_handle_create): Initialize p_resp. - - * internals.h: Add thread specific resolver state. - Based on patches by Adam D. Bradley <artdodge@cs.bu.edu>. - -1999-12-01 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/i386/pt-machine.h: Move stack_pointer definition to the - beginning. - * sysdeps/i386/i686/pt-machine.h: Likewise. - Patches by Alan Modra <alan@SPRI.Levels.UniSA.Edu.Au>. - -1999-11-23 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (pthread_start_thread_event): Initialize p_pid already - here. - -1999-11-22 Ulrich Drepper <drepper@cygnus.com> - - * internals.h: Add prototype for __pthread_manager_event. - * manager.c (__pthread_manager_event): New function. - (pthread_start_thread_event): Correct computation of self. - Use INIT_THREAD_SELF. - * pthread.c (__pthread_manager_thread): Initialize p_lock. - (__pthread_initialize_manager): Respect event flags also for creation - of the manager thread. - -1999-11-08 Ulrich Drepper <drepper@cygnus.com> - - * pthread.c (__pthread_initialize_manager): Initialize - __pthread_manager_thread.p_tid. - -1999-11-02 Ulrich Drepper <drepper@cygnus.com> - - * internals.h: Declare __pthread_last_event. - * manager.c: Define __pthread_last_event. - (pthread_handle_create): Set __pthread_last_event. - (pthread_exited): Likewise. - * join.c (pthread_exit): Likewise. - - * Makefile (libpthread-routines): Add events. - * events.c: New file. - * internals.h: Protect against multiple inclusion. - Include thread_dbP.h header. - (struct _pthread_descr_struct): Add new fields p_report_events and - p_eventbuf. - Declare event reporting functions. - * join.c (pthread_exit): Signal event if this is wanted. - * manager.c (__pthread_threads_events): New variable. - (pthread_handle_create): Take new parameters with event information. - Signal TD_CREATE event if wanted. - (__pthread_manager): Adjust pthread_handle_create call. - (pthread_start_thread_event): New function. Block until manager is - finished and then call pthread_start_thread. - (pthread_exited): Signal TD_REAP event if wanted. - -1999-10-26 Ulrich Drepper <drepper@cygnus.com> - - * restart.h (suspend_with_cancellation): Rewrite as a macro. - - * condvar.c (pthread_cond_timedwait_relative): Don't mark as inline. - -1999-10-25 Andreas Jaeger <aj@suse.de> - - * internals.h: Remove K&R compatibility. - * no-tsd.c: Likewise. - * semaphore.h: Likewise. - * signals.c: Likewise. - * sysdeps/pthread/bits/libc-tsd.h: Likewise. - * sysdeps/unix/sysv/linux/bits/sigthread.h: Likewise. - * weaks.c: Likewise. - -1999-10-21 Xavier Leroy <Xavier.Leroy@inria.fr> - - * pthread.c: For i386, wrap pthread_handle_sigrestart and - pthread_handle_sigcancel with functions that restore %gs from the - signal context. For each signal handling function, two wrappers - are required, one for a non-RT signal and one for a RT signal. - * signal.c: For i386, add code to restore %gs from the signal - context in pthread_sighandler and pthread_sighandler_rt. - -1999-10-17 Ulrich Drepper <drepper@cygnus.com> - - * internals.h (PTHREAD_START_ARGS_INITIALIZER): Add cast. - -1999-10-14 Ulrich Drepper <drepper@cygnus.com> - - * pthread.c (__pthread_initial_thread): Pass argument to - PTHREAD_START_ARGS_INITIALIZER. - (__pthread_manager_thread): Likewise. - - * internals.h (PTHREAD_START_ARGS_INITIALIZER): Add parameter to - initialize function. - - * manager.c (pthread_handle_create): Remove p_startfct initialization. - - * internals.h (_pthread_descr_struct): We don't need p_startfct field. - -1999-10-12 Ulrich Drepper <drepper@cygnus.com> - - * internals.h: Correct return types for __libc_read and __libc_write. - -1999-10-09 Andreas Jaeger <aj@suse.de> - - * internals.h: Add __new_sem_post to get prototype in - manager.c; include semaphore.h for needed types. - -1999-10-08 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (__pthread_manager) [REQ_POST]: Use __new_sem_post - directly instead of calling sem_post which should not be necessary - but is faster and might help in some case to work around problems. - Patch by khendricks@ivey.uwo.ca [libc/1382]. - -1999-10-08 Andreas Schwab <schwab@suse.de> - - * sysdeps/pthread/Subdirs: New file. - * Implies: Removed. - -1999-10-07 Ulrich Drepper <drepper@cygnus.com> - - * Implies: New file. - * internals.h (struct _pthread_descr_struct): Add p_startfct. - * manager.c (pthread_handle_create): Initialize p_startfct. - * pthread.c: Define __linuxthread_pthread_sizeof_descr variable. - -1999-09-25 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (__linuxthreads_pthread_threads_max): New variable. - * specific.c (__linuxthreads_pthread_keys_max): New variable. - (__linuxthreads_pthread_key_2ndlevel_size): New variable. - - * condvar.c (pthread_cond_timedwait_relative): Never return with - EINTR. Patch by Andreas Schwab. - -1999-09-19 Ulrich Drepper <drepper@cygnus.com> - - * signals.c (sigaction): Correct last patch. Don't select - pthread_sighandler_rt based on the signal number but instead of - the SA_SIGINFO flag. - -1999-09-23 Ulrich Drepper <drepper@cygnus.com> - - * specific.c: Move definitions of struct pthread_key_struct and - destr_function to ... - * internals.h: ...here. - -1999-09-18 Ulrich Drepper <drepper@cygnus.com> - - * pthread.c (pthread_handle_sigrestart_rt): New function. Use - this instead of pthread_handle_sigrestart if the signal is an RT - signal. - - * signals.c: Handle passing through of sighandler arguments also - for real-time signals. - -1999-09-03 Andreas Schwab <schwab@suse.de> - - * ptfork.c (__fork): Renamed from fork and use __libc_fork. Add - fork as weak alias. - (__vfork): New function, alias vfork. - * Versions: Export __fork, vfork, and __vfork in libpthread. - -1999-08-23 Andreas Schwab <schwab@suse.de> - - * signals.c (pthread_sighandler): Add SIGCONTEXT_EXTRA_ARGS to - call to signal handler. - -1999-08-20 Ulrich Drepper <drepper@cygnus.com> - - * pthread.c (__pthread_reset_main_thread): Undo last change. - (__pthread_kill_other_threads_np): Reset signal handlers for the - signals we used in the thread implementation here. - -1999-08-19 Ulrich Drepper <drepper@cygnus.com> - - * pthread.c (__pthread_reset_main_thread): Reset signal handlers - for the signals we used in the thread implementation [PR libc/1234]. - - * Versions: Export __pthread_kill_other_threads_np from libpthread - for GLIBC_2.1.2. - - * signals.c: Pass sigcontext through wrapper to the user function. - -1999-08-01 Ulrich Drepper <drepper@cygnus.com> - - * Versions [ld.so] (GLIBC_2.0): Export __libc_internal_tsd_get and - __libc_internal_tsd_set. - -1999-07-29 Andreas Jaeger <aj@arthur.rhein-neckar.de> - - * manager.c: Remove inclusion of <linux/tasks.h> since it's not - needed anymore. - -1999-07-16 Andreas Jaeger <aj@arthur.rhein-neckar.de> - - * internals.h: Align _pthread_descr_struct to 32 bytes. - Reported by Tim Hockin <thockin@cobaltnet.com>, close PR - libc/1206. - -1999-07-09 Ulrich Drepper <drepper@cygnus.com> - - * oldsemaphore.c (sem_compare_and_swap): Fix use of compare and - swap function. - -1999-07-09 Cristian Gafton <gafton@redhat.com> - - * Makefile (libpthread-routines): Add oldsemaphore routine. - * Versions: Add sem_destroy, sem_getvalue, sem_init, sem_post, - sem_trywait, and sem_wait to GLIBC_2.1. - * oldsemaphore.c: New file. - * semaphore.c: Add default_symbol_versions for the changed functions. - (__new_sem_init): Rename from sem_init. - (__new_sem_post): Rename from sem_post. - (__new_sem_wait): Rename from sem_wait. - (__new_sem_trywait): Rename from sem_trywait. - (__new_sem_getvalue): Rename from sem_getvalue. - (__new_sem_destroy): Rename from sem_destroy. - -1999-06-23 Robey Pointer <robey@netscape.com> - - * internals.h: Added p_nextlock entry to separate queueing for a - lock from queueing for a CV (sometimes a thread queues on a lock - to serialize removing itself from a CV queue). - * pthread.c: Added p_nextlock to initializers. - * spinlock.c: Changed to use p_nextlock instead of p_nextwaiting. - -1999-07-09 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (pthread_handle_create): Free mmap region after stack - if clone failed. Patch by Kaz Kylheku <kaz@ashi.FootPrints.net>. - -1999-05-23 Andreas Jaeger <aj@arthur.rhein-neckar.de> - - * man/pthread_cond_init.man: Correct example. - Reported by Tomas Berndtsson <tomas@nocrew.org>. - - * linuxthreads.texi (Condition Variables): Likewise. - -1999-05-18 Jakub Jelinek <jj@ultra.linux.cz> - - * sysdeps/sparc/sparc64/pt-machine.h (__compare_and_swap): Use - casx not cas, also successful casx returns the old value in rd - and not the new value. - -1999-05-16 Xavier Leroy <Xavier.Leroy@inria.fr> - - * manager.c: If pthread_create() is given a NULL attribute - and the thread manager runs with a realtime policy, set the - scheduling policy of the newly created thread back to SCHED_OTHER. - * manager.c: If the PTHREAD_INHERIT_SCHED attribute is given, - initialize the schedpolicy field of new_thread->p_start_args - to that of the calling thread. - -1999-04-29 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/sparc/sparc64/pt-machine.h (__compare_and_swap): cas - instruction does not allow memory element to use offset. - -1999-04-28 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (pthread_allocate_stack): Optimize initialization of new - thread descriptor. - - * sysdeps/pthread/bits/libc-lock.h (__libc_lock_define_initialized): - Don't use initializer since it is all zeroes. - (__libc_once_define): Likewise. - -1999-04-16 Andreas Jaeger <aj@arthur.rhein-neckar.de> - - * sysdeps/arm/Implies: Removed since cmpxchg/no-cmpxchg - doesn't exist anymore. - * sysdeps/i386/Implies: Likewise. - * sysdeps/m68k/Implies: Likewise. - * sysdeps/mips/Implies: Likewise. - * sysdeps/powerpc/Implies: Likewise. - * sysdeps/sparc/sparc32/Implies: Likewise. - * sysdeps/sparc/sparc64/Implies: Likewise. - -1999-04-15 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/alpha/bits/semaphore.h: Removed. - * sysdeps/powerpc/bits/semaphore.h: Removed. - * sysdeps/pthread/cmpxchg/bits/semaphore.h: Removed. - * sysdeps/pthread/no-cmpxchg/bits/semaphore.h: Removed. - * Makefile (headers): Remove bits/semaphore.h. - - * semaphore.h: Define _pthread_descr if necessary. - Don't include limits.h. Define SEM_VALUE_MAX directly. - Define SEM_FAILED. - (sem_t): Protect element names with leading __. - Add declarations for sem_close, sem_open, and sem_unlink. - * semaphore.c: Adjust all functions for new element names. - Define sem_close, sem_open, and sem_unlink. - * Versions (libthread): Add sem_close, sem_open, and sem_unlink for - GLIBC_2.1.1. - * sysdeps/pthread/bits/pthreadtypes.h: Define _pthread_descr only if - necessary. - -1999-03-16 H.J. Lu <hjl@gnu.org> - - * specific.c (pthread_key_delete): Check th->p_terminated to see - if the thread is running. - - * Versions (__libc_internal_tsd_get, __libc_internal_tsd_set): - Added to GLIBC_2.0 for libc.so. - -1999-02-12 H.J. Lu <hjl@gnu.org> - - * Versions (__libc_current_sigrtmin, __libc_current_sigrtmax, - __libc_allocate_rtsig): Added to GLIBC_2.1. - - * internals.h (DEFAULT_SIG_RESTART): Removed. - (DEFAULT_SIG_CANCEL): Removed. - - * pthread.c (init_rtsigs, __libc_current_sigrtmin, - __libc_current_sigrtmax, __libc_allocate_rtsig): New functions. - (__pthread_sig_restart, __pthread_sig_cancel, - __pthread_sig_debug): Initialized. - (pthread_initialize): Call init_rtsigs () to initialize - real-time signals. - -1999-02-03 H.J. Lu <hjl@gnu.org> - - * manager.c (__pthread_manager): Do block __pthread_sig_debug. - Don't restart the thread which sent REQ_DEBUG. - (pthread_start_thread): Check if __pthread_sig_debug > 0 - before debugging. - - * pthread.c (__pthread_initialize_manager): Suspend ourself - after sending __pthread_sig_debug to gdb instead of - __pthread_sig_cancel. - -1999-01-24 H.J. Lu <hjl@gnu.org> - - * manager.c (__pthread_manager): Delete __pthread_sig_debug - from mask if __pthread_sig_debug > 0. - (pthread_handle_create): Increment __pthread_handles_num. - - * manager.c (pthread_handle_create): Don't pass CLONE_PTRACE to clone. - * pthread.c (__pthread_initialize_manager): Likewise. - - * pthread.c (pthread_initialize): Use __libc_allocate_rtsig (1) - instead of __libc_allocate_rtsig (2). - (__pthread_initialize_manager): Send __pthread_sig_debug to gdb - instead of __pthread_sig_cancel. - (pthread_handle_sigdebug): Fix comments. - -1999-01-21 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (pthread_allocate_stack): Set - __pthread_nonstandard_stacks if user-specified stack is used. - -1999-01-16 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add _LFS_ASYNCHRONOUS_IO, - _LFS_LARGEFILE, _LFS64_LARGEFILE, and _LFS64_STDIO from Unix98. - -1999-01-07 Xavier Leroy <Xavier.Leroy@inria.fr> - - * pthread.c: Use a third signal __pthread_sig_debug distinct - from __pthread_sig_cancel to notify gdb when a thread is - created - * manager.c: Likewise. - * internals.h: Likewise. - * signals.c: The implementation of sigwait(s) assumed that - all signals in s have signal handlers already attached. - This is not required by the standard, so make it work - also if some of the signals have no handlers. - -1999-01-05 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> - - * linuxthreads.texi: Remove pointers from first @node. Move old - @node spec inside comment. - -1998-12-31 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/pthread/bits/stdio-lock.h: Define _IO_lock_lock and - _IO_lock_unlock. - -1998-12-29 Ulrich Drepper <drepper@cygnus.com> - - * semaphore.c (sem_trywait): Don't forget to unlock the semaphore - lock. Patch by Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>. - -1998-12-21 Ulrich Drepper <drepper@cygnus.com> - - * manager.c: Threads now send __pthread_sig_cancel on termination. - Change clone call and signal masks. - * thread.c (pthread_handle_sigrestart): Remove special code for - manager. - (pthread_handle_sigcancel): In manager thread call - __pthread_manager_sighandler. - * sysdeps/i386/pt-machine.h (__compare_and_swap): Add memory clobber. - * sysdeps/i386/i686/pt-machine.h: Likewise. - Patches by Xavier Leroy. - -1998-12-14 Ulrich Drepper <drepper@cygnus.com> - - * spinlock.c (__pthread_unlock): Don't crash if called for an - untaken mutex. Reported by Ruslan V. Brushkoff <rus@Snif.Te.Net.UA>. - - * Examples/ex6.c: Unbuffer stdout and reduce sleep time to reduce - overall runtime. - -1998-12-13 Ulrich Drepper <drepper@cygnus.com> - - * Examples/ex3.c: Wait until all threads are started before - searching for the number to avoid race condition on very fast - systems. - -1998-12-08 Andreas Jaeger <aj@arthur.rhein-neckar.de> - - * sysdeps/pthread/pthread.h: Remove __pthread_setcanceltype - declaration since it's not needed. - - * sysdeps/pthread/pthread.h: Move internal functions to ... - * internals.h: ...here. - -1998-12-02 H.J. Lu <hjl@gnu.org> - - * pthread.c (__pthread_sig_restart): Initiliaze to 0 if - SIGRTMIN is defined. - (__pthread_sig_cancel): Likewise. - -1998-12-01 Andreas Jaeger <aj@arthur.rhein-neckar.de> - - * wrapsyscall.c: Include <sys/mman.h> for msync, - <stdlib.h> for system and <termios.h> for tcdrain prototype. - Correct msync declaration. - -1998-11-29 Roland McGrath <roland@baalperazim.frob.com> - - * sysdeps/pthread/bits/libc-tsd.h (__libc_tsd_define, __libc_tsd_get, - __libc_tsd_set): New macros for new interface. - * no-tsd.c: New file, provide uninitialized defns of - __libc_internal_tsd_get and __libc_internal_tsd_set. - * Makefile (routines): Add no-tsd. - -1998-10-12 Roland McGrath <roland@baalperazim.frob.com> - - * internals.h: Include <bits/libc-tsd.h>, not <bits/libc-lock.h>. - * sysdeps/pthread/bits/libc-lock.h (__libc_internal_tsd_get, - __libc_internal_tsd_set): Move decls to ... - * sysdeps/pthread/bits/libc-tsd.h: New file for __libc_internal_tsd_* - declarations. - - * sysdeps/pthread/bits/libc-lock.h (__libc_internal_tsd_get, - __libc_internal_tsd_set): Make these pointers to functions, not - functions; remove #pragma weak decls for them. - * specific.c (__libc_internal_tsd_get, __libc_internal_tsd_set): - Define static functions and initialized pointers to them. - -1998-11-18 Ulrich Drepper <drepper@cygnus.com> - - * Makefile (CFLAGS-mutex.c): Define as -D__NO_WEAK_PTHREAD_ALIASES. - (CFLAGS-specific.c): Likewise. - (CFLAGS-pthread.c): Likewise. - (CFLAGS-ptfork.c): Likewise. - (CFLAGS-cancel.c): Likewise. - * sysdeps/pthread/bits/libc-lock.h: Don't mark __pthread_* functions - as weak references if __NO_WEAK_PTHREAD_ALIASES is defined. - - * mutex.c (pthread_mutex_init): Define as strong symbol. - (pthread_mutex_destroy): Likewise. - (pthread_mutex_trylock): Likewise. - (pthread_mutex_lock): Likewise. - (pthread_mutex_unlock): Likewise. - (pthread_mutexattr_init): Likewise. - (pthread_mutexattr_destroy): Likewise. - (pthread_once): Likewise. - * ptfork.c (pthread_atfork): Likewise. - * specific.c (pthread_key_create): Likewise. - (pthread_setspecific): Likewise. - (pthread_getspecific): Likewise. - -1998-11-15 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> - - * linuxthreads.texi: Fix punctuation after xref. - -1998-11-10 H.J. Lu <hjl@gnu.org> - - * sysdeps/unix/sysv/linux/bits/local_lim.h: Undefine NR_OPEN - if it is defined in <linux/limits.h>. - -1998-10-29 14:28 Ulrich Drepper <drepper@cygnus.com> - - * spinlock.h (__pthread_trylock): Define inline. - (__pthread_lock): Add extra parameter to declaration. Declare - using internal_function. - (__pthread_unlock): Declare using internal_function. - * spinlock.c (__pthread_lock): Add new parameter. Use it instead - of local variable self. Avoid recomputing self. Define using - internal_function. - (__pthread_trylock): Remove. - (__pthread_unlock): Define using internal_function. - * cancel.c: Adjust for __pthread_lock interface change. Use already - computed self value is possible. - * condvar.c: Likewise. - * join.c: Likewise. - * manager.c: Likewise. - * mutex.c: Likewise. - * pthread.c: Likewise. - * rwlock.c: Likewise. - * semaphore.c: Likewise. - * signals.c: Likewise. - -1998-10-27 13:46 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/pthread/pthread.h (struct _pthread_cleanup_buffer): Prepend - __ to field names of the struct. - * sysdeps/pthread/bits/pthreadtypes.h (struct _pthread_fastlock): - Likewise. - (pthread_attr_t): Likewise. - (pthread_cond_t): Likewise. - (pthread_condattr_t): Likewise. - (pthread_mutex_t): Likewise. - (pthread_mutexattr_t): Likewise. - (pthread_rwlock_t): Likewise. - (pthread_rwlockattr_t): Likewise. - * attr.c: Adjust for pthread.h and pthreadtypes.h change. - * cancel.c: Likewise. - * condvar.c: Likewise. - * manager.c: Likewise. - * mutex.c: Likewise. - * pthread.c: Likewise. - * ptlongjmp.c: Likewise. - * rwlock.c: Likewise. - * spinlock.c: Likewise. - -1998-10-09 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/i386/pt-machine.h (get_eflags, set_eflags): Mark these - also with PT_EI. - - * sysdeps/i386/i686/pt-machine.h: Remove unused inline - definitions. - - * Makefile (libpthread-routines): Add pt-machine. - * pt-machine.c: New file. - * sysdeps/alpha/pt-machine.h: Define PT_EI as extern inline is not - yet defined. Use PT_EI in extern inline definitions. - * sysdeps/arm/pt-machine.h: Likewise. - * sysdeps/i386/pt-machine.h: Likewise. - * sysdeps/i386/i686/pt-machine.h: Likewise. - * sysdeps/m68k/pt-machine.h: Likewise. - * sysdeps/mips/pt-machine.h: Likewise. - * sysdeps/powerpc/pt-machine.h: Likewise. - * sysdeps/sparc/sparc32/pt-machine.h: Likewise. - * sysdeps/sparc/sparc64/pt-machine.h: Likewise. - -1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de> - - * semaphore.h: Include <sys/types.h> so that _pthread_descr - is declared. - -1998-09-15 David S. Miller <davem@pierdol.cobaltmicro.com> - - * sysdeps/sparc/sparc32/pt-machine.h (INIT_THREAD_SELF): Add nr - argument. - * sysdeps/sparc/sparc64/pt-machine.h (INIT_THREAD_SELF): Likewise. - -1998-09-12 14:24 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu> - - * sysdeps/unix/sysv/linux/bits/sigthread.h: Add multiple inclusion - guard. - -1998-09-02 11:08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * signals.c (sigaction): Check that sig is less than NSIG to avoid - array index overflow. - -1998-09-06 10:56 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/pthread/semaphore.h: New file. - -1998-09-06 09:08 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/pthread/bits/libc-lock.h (enum __libc_tsd_key_t): Add - _LIBC_TSD_KEY_DL_ERROR. - -1998-08-31 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/i386/i686/pt-machine.h (testandset): Add memory clobber. - * sysdeps/i386/pt-machine.h: Likewise. - Suggested by Roland McGrath. - -1998-08-28 13:58 Ulrich Drepper <drepper@cygnus.com> - - * internals.h: Also define THREAD_GETMEM_NC and THREAD_SETMEM_NC to - access thread data with non-constant offsets. - * specific.c: Use THREAD_GETMEM_NC and THREAD_SETMEM_NC where - necessary. - - * sysdeps/i386/useldt.h: Fix typo. Add THREAD_GETMEM_NC and - THREAD_SETMEM_NC definitions. - - * sysdeps/sparc/sparc32/pt-machine.h: Define THREAD_GETMEM_NC and - THREAD_SETMEM_NC. - * sysdeps/sparc/sparc64/pt-machine.h: Likewise. - -1998-08-26 15:46 Ulrich Drepper <drepper@cygnus.com> - - * internals.h: Define THREAD_GETMEM and THREAD_SETMEM to default if - not already defined. - (struct _pthread_descr_struct): Add p_self and p_nr field. - * manager.c (__pthread_handles): Define second element to point - to manager thread. - (__pthread_handles_num): Initialize to 2. - (__pthread_manager): Use INIT_THREAD_SELF with two arguments. - (pthread_start_thread): Likewise. - (pthread_handle_create): Start search for free slot at entry 2. - Initialize new fields p_self and p_nr. - Call __clone with CLONE_PTRACE if available. - (pthread_free): Call FREE_THREAD_SELF if available. - * pthread.c (__pthread_initial_thread): Initialize new fields. - (__pthread_manager_thread): Likewise. - (__pthread_initialize_manager): Call __clone with CLONE_PTRACE. - - * cancel.c: Use THREAD_GETMEM and THREAD_SETMEM to access the - elements of the thread descriptor. - * condvar.c: Likewise. - * errno.c: Likewise. - * join.c: Likewise. - * manager.c: Likewise. - * pthread.c: Likewise. - * ptlongjmp.c: Likewise. - * semaphore.c: Likewise. - * signals.c: Likewise. - * specific.c: Likewise. - * spinlock.c: Likewise. - - * sysdeps/alpha/pt-machine.h (INIT_THREAD_SELF): Add extra parameter. - - * sysdeps/i386/useldt.h: New file. - * sysdeps/i386/i686/pt-machine.h: Show how to use this file. - - * sysdeps/sparc/sparc32/pt-machine.h: Define THREAD_GETMEM and - THREAD_SETMEM using __thread_self. - * sysdeps/sparc/sparc64/pt-machine.h: Likewise. - -1998-08-24 Geoff Keating <geoffk@ozemail.com.au> - - * spinlock.c (__pthread_lock): Reset p_nextwaiting to NULL if it - turned out that we didn't need to queue after all. - -1998-08-22 Geoff Keating <geoffk@ozemail.com.au> - - * sysdeps/powerpc/pt-machine.h: Remove testandset, it's not used - and wastes space; correct types. - -1998-08-08 11:18 H.J. Lu <hjl@gnu.org> - - * signals.c (sigaction): Handle NULL argument. - -1998-08-04 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/unix/sysv/linux/bits/sigthread.h: Use __sigset_t instead - of sigset_t. - -1998-08-02 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * Makefile (linuxthreads-version): Extract correct number from - Banner. - -1998-07-29 Xavier Leroy <Xavier.Leroy@inria.fr> - - * Banner: Bump version number to 0.8 - * FAQ.html: Many updates, in particular w.r.t. debugging. - * manager.c: Support for non-default stacksize for - LinuxThreads-allocated stacks; - don't use guard pages for stacks with default size, rely on - rlimit(RLIMIT_STACK) instead (it's cheaper). - * attr.c: Likewise. - * cancel.c: Use __pthread_sig_cancel and __pthread_sig_restart - everywhere instead of PTHREAD_SIG_CANCEL and PTHREAD_SIG_RESTART. - * condvar.c: Likewise. - * internals.h: Likewise. - * restart.h: Likewise. - * signals.c: Likewise. - * pthread.c: Likewise; set rlimit(RLIMIT_STACK) as we need it. - -1998-07-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * weaks.c: Define pthread_mutexattr_[sg]ettype instead of - __pthread_mutexattr_[sg]ettype. Add more weak aliases. - * Versions: Put __pthread_mutexattr_settype under version - GLIBC_2.0. Don't export __pthread_mutexattr_setkind_np and - __pthread_mutexattr_gettype. - -1998-07-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * sysdeps/pthread/bits/libc-lock.h: Make - __pthread_mutexattr_settype weak. Don't make - __pthread_mutexattr_setkind_np weak. - -1998-07-16 10:52 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (pthread_handle_create): Check whether sched_setscheduler - call can succeed here. - - * mutex.c: Define __pthread_mutexattr_settype and make - __pthread_mutexattr_setkind_np an alias. - Likewise for __pthread_mutexattr_gettype. - -1998-07-15 11:00 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu> - - * attr.c (pthread_attr_setschedpolicy): Don't check whether caller - is root. - -1998-07-14 19:38 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/pthread/bits/libc-lock.h: Define __libc_cleanup_end. - -1998-07-11 Andreas Jaeger <aj@arthur.rhein-neckar.de> - - * Examples/ex6.c: Include <unistd.h> for usleep. - -1998-06-13 11:04 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * Examples/ex4.c (main): Use exit, not pthread_exit. - -1998-07-09 13:39 Ulrich Drepper <drepper@cygnus.com> - - * Versions: Add __pthread_mutexattr_gettype and - __pthread_mutexattr_settype. - * lockfile.c: Use __pthread_mutexattr_settype instead of - __pthread_mutexattr_setkind_np. - * mutex.c: Define __pthread_mutexattr_gettype and - __pthread_mutexattr_settype. - * weak.c: Likewise. - * sysdeps/pthread/pthread.h: Declare __pthread_mutexattr_gettype and - __pthread_mutexattr_settype. - * sysdeps/pthread/bits/libc-lock.h (__libc_lock_init_recursive): - Use __pthread_mutexattr_settype. - -1998-07-08 22:26 Ulrich Drepper <drepper@cygnus.com> - - * Versions: Add pthread_mutexattr_gettype, pthread_mutexattr_settype. - * mutex.c: Define weak alias pthread_mutexattr_gettype and - pthread_mutexattr_settype. - * sysdeps/pthread/pthread.h: Declare these functions. - Move pthread_sigmask and pthread_kill declaration in separate header. - * sysdeps/unix/sysv/linux/bits/sigthread.h: New file. - -1998-07-07 15:20 Ulrich Drepper <drepper@cygnus.com> - - * Makefile: Add rules to compile and run tests. - * Examples/ex1.c: Little changes to fix warnings. - * Examples/ex2.c: Likewise. - * Examples/ex3.c: Likewise. - * Examples/ex4.c: Likewise. - * Examples/ex5.c: Likewise. - * Examples/ex6.c: New file. - -1998-07-05 11:54 Ulrich Drepper <drepper@cygnus.com> - - * Versions: Add pthread_attr_init to GLIBC_2.1 version in libc. - -1998-07-01 Andreas Jaeger <aj@arthur.rhein-neckar.de> - - * attr.c: Include <string.h>. - -1998-06-30 11:47 Ulrich Drepper <drepper@cygnus.com> - - * attr.c: Include errno.h. Use memcpy to copy sched_param. - * internals.h: Include limits.h. - * manager.c: Use memcpy to copy sched_param. - * ptfork.c: Include errno.h. - * pthread.c: Likewise. - * semaphore.c: Likewise. - * specific.c: Likewise. - * spinlock.h: Likewise. - * sysdeps/pthread/pthread.h: Include only allowed headers. Move - type definition to ... - * sysdeps/pthread/bits/pthreadtypes.h: ...here. New file. - -1998-06-29 12:34 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/pthread/pthread.h: Use __PMT not __P for function pointers. - - * sysdeps/pthread/pthread.h: Define various PTHREAD_* symbols also - as macros as demanded in POSIX.1, Annex C. - -1998-06-29 12:29 Ulrich Drepper <drepper@cygnus.com> - - * internals.h (struct pthread_request): For free use pthread_t - instead of pthread_descr. - * join.c (pthread_join): Pass thread_id, not th to manager. - (pthread_detach): Likewise. - * manager.c (__pthread_manager): Except thread ID in FREE_REQ case. - (pthread_exited): Remove detached queue code. - (pthread_handle_free): Expect thread ID parameter and use it to - validate the thread decsriptor. Don't use detached queue. - Patches by Xavier Leroy. - -1998-06-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * libpthread.map: Export accept, longjmp, sigaction, siglongjmp, - _IO_flockfile, _IO_ftrylockfile, _IO_funlockfile, - __pthread_atfork, __pthread_key_create, __pthread_once. - * internals.h: Doc fix. - * pthread.c (__pthread_initialize): Define again. - -1998-06-26 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (pthread_exited): If thread is not detached put it on - special list. - (pthread_handle_free): If thread is not on list with living threads - search on list with detached threads. - - * sysdeps/pthread/pthread.h (PTHREAD_RWLOCK_INITIALIZER): Correct - for new definition of pthread_rwlock_t. - - * spinlock.c: Correct test whether to compile - __pthread_compare_and_swap or not. - -1998-06-25 19:27 Ulrich Drepper <drepper@cygnus.com> - - * attr.c: Finish user stack support. Change locking code to be safe - in situations with different priorities. - * cancel.c: Likewise. - * condvar.c: Likewise. - * internals.h: Likewise. - * join.c: Likewise. - * manager.c: Likewise. - * mutex.c: Likewise. - * pthread.c: Likewise. - * ptlongjmp.c: Likewise. - * queue.h: Likewise. - * rwlock.c: Likewise. - * semaphore.c: Likewise. - * semaphore.h: Likewise. - * signals.c: Likewise. - * spinlock.c: Likewise. - * spinlock.h: Likewise. - * sysdeps/pthread/pthread.h: Likewise. - Patches by Xavier Leroy. - - * sysdeps/i386/i686/pt-machine.h: New file. - -1998-06-25 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/pthread/pthread.h: Make [sg]et_stacksize and - [sg]et_stackaddr prototypes always available. - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define - _POSIX_THREAD_ATTR_STACKSIZE and _POSIX_THREAD_ATTR_STACKADDR. - -1998-06-24 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (pthread_free): Undo patch from 980430. - Reported by David Wragg <dpw@doc.ic.ac.uk>. - -1998-06-09 15:07 Ulrich Drepper <drepper@cygnus.com> - - * manager.c: Define __pthread_manager_adjust_prio and use it to - increase priority when needed. - * internals.h: Add prototype for __pthread_manager_adjust_prio. - * mutex.c: Optimize mutexes to wake up only one thread. - * pthread.c: Move PID of manager for global variable in structure - element. - Patches by Xavier Leroy. - -1998-06-07 13:47 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/pthread/bits/libc-lock.h: Optimize cleanup handlers a bit. - -1998-06-03 Andreas Jaeger <aj@arthur.rhein-neckar.de> - - * attr.c: Correct typo. - -1998-05-01 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (pthread_free): Unmap guard before the stack. - Patch by Matthias Urlichs. - -1998-04-30 Ulrich Drepper <drepper@cygnus.com> - - * manager.c (pthread_free): Detect already free child. - Patch by Xavier Leroy, reported by Matthias Urlichs. - -1998-04-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * Makefile (linuxthreads-version): Renamed back from - libpthread-version. - -1998-04-21 Ulrich Drepper <drepper@cygnus.com> - - * ptlongjmp.c: Add prototypes for __libc_siglongjmp and - __libc_longjmp. - -1998-04-20 14:55 Ulrich Drepper <drepper@cygnus.com> - - * Makefile (libpthread-routines): Add ptlongjmp and spinlock. - * internals.h: Add definitions for new spinlock implementation. - * ptlongjmp.c: New file. - * spinlock.c: New file. - * spinlock.h (acquire): Don't reschedule using __sched_yield, use - new function __pthread_acquire to prevent deadlocks with thread - with different priorities. - Patches by Xavier Leroy <Xavier.Leroy@inria.fr>. - -1998-03-16 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * manager.c (__pthread_manager): Reduce first argument to select - to include just the needed file descriptor. - -1998-03-17 00:06 Ulrich Drepper <drepper@cygnus.com> - - * manager.c: Fix last patch which caused core dumps. - - * pthread.c: Correctly handle missing SIGRTMIN. - -1998-03-15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * libpthread.map: Add __libc_internal_tsd_get and - __libc_internal_tsd_set. Add missing cancelable functions. Export - libc internal versions of the cancelable functions. - -1998-03-13 16:51 Ulrich Drepper <drepper@cygnus.com> - - * weaks.c: Define pthread_attr_init as GLIBC_2.0 and GLIBC_2.1. - -1998-03-13 00:46 Ulrich Drepper <drepper@cygnus.com> - - * attr.c: Implement pthread_attr_[gs]etguardsize, - pthread_attr_[gs]setstackaddr, pthread_attr_[gs]etstacksize. - Change pthread_attr_init to have two interfaces. - * internals.h (struct _pthread_descr_struct): Add new fields for - above functions. - * libpthread.map: Add names in GLIBC_2.1 section. - * manager.c (pthread_handle_create): Implement guardsize and - user stack. - (pthread_free): Likewise. - * pthread.c (pthread_create): Add new interface for changed - pthread_attr_t. - * sysdeps/pthread/pthread.h: Add prototypes for new functions. - * sysdeps/unix/sysv/linux/bits/local_lim.h: Add definition of - PTHREAD_STACK_MIN. - -1998-03-11 00:42 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de> - - * manager.c: Enable resetting of the thread scheduling policy - to SCHED_OTHER when the parent thread has a different one. - -1998-02-01 13:51 Ulrich Drepper <drepper@cygnus.com> - - * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define - _POSIX_ASYNCHRONOUS_IO. - - * sysdeps/pthread/pthread.h: Define bits for Unix98 variants of - mutexes. - * mutex.c: Implement new mutex types. - - * internals.h: Include <signal.h>. - - * libpthread.map: Add __erno_location and __h_errno_location. - - * errno.c: Return pointer to variable actually in use. This might - not be the one in the thread structure. - * internals.h (struct _pthread_descr_struct): Add new fields p_errnop - and p_h_errnop. - * manager.c (__pthread_manager): Set p_errnop and p_h_errnop member - of manager thread structure. - (pthread_handle_create): Set p_errnop and p_h_errnop members for new - thread. - * pthread.c: Adapt initializer for thread structures. - (__pthread_initial_thread): Set p_errnop and p_h_errnop member. - (__pthread_reset_main_thread): Reset p_errnop and p_h_errnop of - current thread to global variables. - -1998-01-31 17:27 Ulrich Drepper <drepper@cygnus.com> - - * rwlock.c: New file. - * Makefile (libpthread-routines): Add rwlock. - * sysdeps/pthread/pthread.h: Define data structures and declare - functions. - * libpthread.map: Add new functions. - -1997-12-18 13:50 Philip Blundell <pb@nexus.co.uk> - - * sysdeps/arm/pt-machine.h: New file; add ARM support. - * sysdeps/arm/Implies: likewise. - * README: Document it. - -1997-12-13 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * signals.c: Remove unneeded initializer for sigwaited, saving a - warning. - -1997-04-11 01:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * semaphore.c (sem_init): Set sem_spinlock only if available. - -1997-12-04 01:48 Ulrich Drepper <drepper@cygnus.com> - - * mutex.c: Implement PTHREAD_MUTEX_CHECKERROR. - * sysdeps/pthread/pthread.h: Define PTHREAD_MUTEX_CHECKERROR. - - * Makefile: Update from LinuxThreads 0.7. - * internals.h. Likewise. - * manager.c: Likewise. - * mutex.c: Likewise. - * pthread.c: Likewise. - * signals.c: Likewise. - * specific.c: Likewise. - * Examples/ex3.c: Likewise. - -1997-11-20 18:13 Ulrich Drepper <drepper@cygnus.com> - - * pthread.c (__pthread_reset_main_thread): Close pipe only if still - open. - -1997-10-29 05:38 Ulrich Drepper <drepper@cygnus.com> - - * wrapsyscall.c: Add socket functions which are also cancelation - points. - -1997-10-19 21:40 Wolfram Gloger <wg@wolfram.dent.med.uni-muenchen.de> - - * specific.c (__libc_internal_tsd_set, __libc_internal_tsd_get): - New functions for fast thread specific data within libc. - - * internals.h: Add new array p_libc_specific to struct - _pthread_descr_struct. - - * sysdeps/pthread/bits/libc-lock.h: Declare new functions. - -1997-10-13 05:39 Ulrich Drepper <drepper@cygnus.com> - - * semaphore.h: Add __BEGIN_DECLS/__END_DECLS. - Reported by Ralf Corsepius <corsepiu@faw.uni-ulm.de>. - -1997-08-29 03:05 Ulrich Drepper <drepper@cygnus.com> - - * internals.h (struct _pthread_descr_struct): Add definitions for - two-level specific key handling. - * manager.c (pthread_handle_create): Initialize specific memory array. - * specific.c: Implement two-level key handling. - * weaks.c: Don't provide dummy key handling. - * sysdeps/pthread/bits/libc-lock.h: Typedef __libc_lock_t (no #define). - Add definition of __libc_key_t. - * sysdeps/unix/sysv/linux/bits/local_lim.h: Define PTHREAD_KEYS_MAX - as 1024. - Add definition of _POSIX_THREAD_DESTRUCTOR_ITERATIONS and - PTHREAD_DESTRUCTOR_ITERATIONS. - - * manager.c (pthread_handle_create): Compare mmap result with - MAP_FAILED. - - * ptfork.c: Rename to __pthread_atfork and make old name a weak alias. - * sysdeps/pthread/bits/pthread.h: Add prototype for __pthread_atfork. - -1997-08-22 19:04 Richard Henderson <rth@cygnus.com> - - sysdeps/sparc -> sysdeps/sparc/sparc32 - sysdeps/sparc64 -> sysdeps/sparc/sparc64 - - * internals.h: Change definition of THREAD_SELF to be an expression, - not a statement that did a return. - * sysdeps/alpha/pt-machine.h (THREAD_SELF): Update accordingly. - * sysdeps/sparc/sparc32/pt-machine.h (THREAD_SELF, INIT_THREAD_SELF): - Follow Solaris and use a "system reserved" register (%g6) to hold - the thread descriptor. - * sysdeps/sparc/sparc64/pt-machine.h: Likewise. - -1997-08-03 00:09 Ulrich Drepper <drepper@cygnus.com> - - * mutex.c: Correct pthread_once. Patch by Xavier Leroy. - * sysdeps/pthread/pthread.h: Add prototype for __pthread_once. - * sysdeps/pthread/bits/pthread.h: Add macros for __libc_once. - - * semaphore.c: Include spinlock.h only when needed. - - * specific.c (__pthread_setsepcific, __pthread_getspecific): Reject - keys for entries not in use. - - * weaks.c: Implement key handling functions for real. - -1997-06-29 01:04 Richard Henderson <richard@gnu.ai.mit.edu> - - Initial sparc64-linux support: - * sysdeps/sparc64/Implies: New file. - * sysdeps/sparc64/pt-machine.h: Likewise. - -1997-06-29 00:48 Ulrich Drepper <drepper@cygnus.com> - - * semaphore.c: Include spinlock.h at correct place. - Patch by HJ Lu. - -1997-06-13 10:06 Richard Henderson <rth@tamu.edu> - - The Great Bit File Move: - * sysdeps/alpha/semaphorebits.h: -> .../bits/semaphore.h. - * sysdeps/powerpc/semaphorebits.h: Likewise. - * sysdeps/pthread/cmpxchg/semaphorebits.h: Likewise. - * sysdeps/pthread/no-cmpxchg/semaphorebits.h: Likewise. - * sysdeps/pthread/libc-lock.h: -> bits/ - * sysdeps/pthread/stdio-lock.h: Likewise. - * sysdeps/unix/sysv/linux/local_lim.h: Likewise. - * sysdeps/unix/sysv/linux/posix_opt.h: Likewise. - * semaphore.h: Likewise. - * sysdeps/pthread/pthread.h: Likewise. - - * lockfile.c: <foo.h> -> <bits/foo.h>. - * semaphore.h: Likewise. - - * Makefile: (headers): foo.h -> bits/foo.h. - * sysdeps/pthread/Makefile: Likewise. - -1997-04-11 01:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - * semaphore.c (sem_init): Set sem_spinlock only if available. - - * sysdeps/m68k/pt-machine.h (testandset, __compare_and_swap): Fix - asm constraints. - -1997-04-09 03:00 Ulrich Drepper <drepper@cygnus.com> - - Update from LinuxThreads 0.6. - - * attr.c (pthread_attr_getdetachstate): Use __sched_get_priority_max - and __sched_get_priority_min instead of names without `__'. - - * manager.c: Rewrite large parts to implement opaque pthread_t. - - * cancel.c: Adapt for opaque pthread_t type. - * condvar.c: Likewise. - * errno.c: Likewise. - * join.c: Likewise. - * mutex.c: Likewise. - * pthread.c: Likewise. - * signals.c: Likewise. - * specific.c: Likewise. - * restart.h: Likewise. - * queue.h: Likewise. - * Examples/ex3.c: Likewise. - * Examples/ex4.c: Likewise. - * sysdeps/pthread/pthread.h: Likewise. - - * pthread.c: Accumulate time for all threads in thread manager. - - * semaphore.c: Implement fallback implementation for architectures - sometimes missing compare-exchange operations. - - * cancel.c (pthread_cancel): Validate handle argument. - * join.c (pthread_join): Likewise. - (pthread_detach): Likewise. - * signals.c (pthread_kill): Likewise. - - * spinlock.h (acquire): Use __sched_yield not sched_yield. - - * queue.h (enqueue): Enqueue thread according to priority. - - * internals.c (struct pthread_start_args): New struct for passing - args to cloning function. - (struct _pthread): Rename to _pthread_descr_struct and adapt for - opaque pthread_t. - - * Examples/Makefile (clean): Pass -f option to rm. - - * sysdeps/i386/pt-machine.h: Add check for compare-exchange instruction - and define TEST_FOR_COMPARE_AND_SWAP. - * sysdeps/i386/i486/pt-machine.h: Removed. - - * sysdeps/unix/sysv/linux/local_lim.h (PTHREAD_THREADS_MAX): Increase - to 1024. - -1997-04-04 16:38 Ulrich Drepper <drepper@cygnus.com> - - * restart.h (suspend): Clear p_signal before suspending. - (suspend_with_cancellation): Likewise. - Patch by Xavier Leroy <Xavier.Leroy@inria.fr>. - - * weaks.c: Make __pthread_key_create return 1. - * sysdeps/pthread/libc-lock.h: Define __libc_key_create, - __libc_getspecific, __libc_setspecific, and __libc_key_t. - * sysdeps/pthread/stdio-lock.h: Don't care for implementation not - using libio. - -1997-03-19 15:13 Miguel de Icaza <miguel@nuclecu.unam.mx> - - * sysdeps/sparc/pt-machine (RELEASE): Fix. - -1997-03-01 07:55 Geoff Keating <geoffk@ozemail.com.au> - - * sysdeps/powerpc/Implies: Added. - * sysdeps/powerpc/pt-machine.h: Added. - * sysdeps/powerpc/semaphorebits.h: Added. - -1997-01-22 01:22 Ulrich Drepper <drepper@cygnus.com> - - * pthread.c (__pthread_initial_thread): Correct - initializer. - (__pthread_manager_thread): Likewise. - Reported by Andreas Jaeger. - -1997-01-18 22:15 Richard Henderson <rth@tamu.edu> - - Since sigset_t no longer fits in a register, we can't pass in the - thread's initial mask so easily. Take this opportunity to simplify - the clone implementation by only accepting a single void* argument. - - * manager.c (__pthread_manager): Put thread vitals in the thread - struct instead of as arguments through clone. - (pthread_start_thread): Look for them there. - * internals.h (struct _pthread): Add p_initial_fn, - p_initial_fn_arg, p_initial_mask. Fix __pthread_manager proto. - * pthread.c (pthread_initialize_manager): Revise clone invocation. diff --git a/linuxthreads/Changes b/linuxthreads/Changes deleted file mode 100644 index b213f36c57..0000000000 --- a/linuxthreads/Changes +++ /dev/null @@ -1,85 +0,0 @@ -Release 0.9: -- more ports (SH, IA-64, s390) -- many bug fixes -- timed sync object wait functions -- barrier implementation -- spinlocks implementation -- thread register on x86 -- variable stack size and position on some platforms - -Release 0.8: -(ehmm, forgot to update, don't know anymore) - -Release 0.7: -- Destructors for thread-specific data now conform to the POSIX semantics - (call destructors again if non-NULL TSD remains after a round of - destruction). -- Implemented thread-specific data as a sparse array, allows more TSD keys - and smaller thread descriptors (Ulrich Drepper). -- Added "error checking" mutexes. -- Protect against multiple sigwait() on the same signals. -- Simplified implementation of semaphores when compare_and_swap is - not available. -- Fixed bug in fork() where stdin was closed if fork() was called before - the first pthread_create(). -- Fixed bug in the gethostby*_r functions (bad result if null bytes - in addresses). -- Typos in manual pages corrected. -- First cut at a PowerPC port (not working yet, runs into problems - with gcc and with the C library). - -Release 0.6: -- Validation of thread identifiers: no more crashes when operating on - a thread that has exited (based on Pavel Krauz's ideas). -- Added fallback implementation of semaphores for the 386 and the - Sparc. -- Fixed a bug in signal handling causing false restarts of suspended - threads. -- Fixed a bug in realtime scheduling causing all threads to have - default scheduling on Ix86 with libc5. -- With realtime scheduling, unlocking a mutex now restarts the - highest priority thread waiting on the mutex, not the - first-suspended thread (Richard Neitzel). -- Timing a process now returns cumulative times for all threads, not - just times for the initial thread (suggested by Wolfram Gloger). -- Cleaned up name space (internal defs prefixed by __, weak aliases - for non-portable extensions). -- MIPS port (contributed by Ralf Baechle). - -Release 0.5: -- Signal-safe semaphores a la POSIX 1003.1b added. -- Locking bug in pthread_mutex_trylock over recursive mutexes fixed. -- Race conditions in thread cancellation fixed. -- Sparc port (contributed by Miguel de Icaza). -- Support for getpwnam_r and getpwuid_r. -- Added pthread_kill_other_threads_np to be used in conjunction with - exec*(). - -Release 0.4: -- Manual pages for all functions. -- Synchronization bug causing accumulation of zombie processes fixed. -- Race condition in pthread_cond_timedwait fixed. -- Recursive mutexes are back by popular demand. -- Partial support for realtime scheduling (initiated by Richard Neitzel). -- pthread.h cleaned up a lot: now C++ compatible, added missing "const" - qualifiers, added short documentation, put to GNU libc standards - for name space pollution (Ulrich Drepper). -- Motorola 68k port (contributed by Andreas Schwab). -- Interaction with fork(2) cleaned up a lot. - -Release 0.3: -- Thread creation and reclaimation now performed by a centralized - "thread manager" thread. -- Removed recursive mutexes to make regular mutexes more efficient. -- Now available as a shared library (contributed by Richard Henderson). -- Alpha port (contributed by Richard Henderson). -- Fixed many small discrepancies with Posix 1003.1c. -- Put under the LGPL instead of the GPL. - -Release 0.2: -- Reentrant libc functions (adapted from libc 5.3.9 by Peeter Joot) -- pthread_cond_wait did not reacquire the mutex correctly on return -- More efficient pthread_cond_broadcast - -Release 0.1: -- First public release diff --git a/linuxthreads/Examples/Makefile b/linuxthreads/Examples/Makefile deleted file mode 100644 index c68b3676a4..0000000000 --- a/linuxthreads/Examples/Makefile +++ /dev/null @@ -1,15 +0,0 @@ -CC=gcc -CFLAGS=-g -O -Wall -I.. -D_REENTRANT -LIBPTHREAD=../libpthread.a - -PROGS=ex1 ex2 ex3 ex4 ex5 proxy - -all: $(PROGS) - -.c: - $(CC) $(CFLAGS) -o $* $*.c $(LIBPTHREAD) - -$(PROGS): - -clean: - rm -f $(PROGS) diff --git a/linuxthreads/Examples/ex1.c b/linuxthreads/Examples/ex1.c deleted file mode 100644 index 29138cf761..0000000000 --- a/linuxthreads/Examples/ex1.c +++ /dev/null @@ -1,42 +0,0 @@ -/* Creates two threads, one printing 10000 "a"s, the other printing - 10000 "b"s. - Illustrates: thread creation, thread joining. */ - -#include <stddef.h> -#include <stdio.h> -#include <unistd.h> -#include "pthread.h" - -static void * -process (void *arg) -{ - int i; - fprintf (stderr, "Starting process %s\n", (char *) arg); - for (i = 0; i < 10000; i++) - { - write (1, (char *) arg, 1); - } - return NULL; -} - -int -main (void) -{ - int retcode; - pthread_t th_a, th_b; - void *retval; - - retcode = pthread_create (&th_a, NULL, process, (void *) "a"); - if (retcode != 0) - fprintf (stderr, "create a failed %d\n", retcode); - retcode = pthread_create (&th_b, NULL, process, (void *) "b"); - if (retcode != 0) - fprintf (stderr, "create b failed %d\n", retcode); - retcode = pthread_join (th_a, &retval); - if (retcode != 0) - fprintf (stderr, "join a failed %d\n", retcode); - retcode = pthread_join (th_b, &retval); - if (retcode != 0) - fprintf (stderr, "join b failed %d\n", retcode); - return 0; -} diff --git a/linuxthreads/Examples/ex10.c b/linuxthreads/Examples/ex10.c deleted file mode 100644 index f3ad517283..0000000000 --- a/linuxthreads/Examples/ex10.c +++ /dev/null @@ -1,108 +0,0 @@ -/* Tests for pthread_mutex_timedlock function. - Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>, 2000. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <error.h> -#include <stdio.h> -#include <stdlib.h> -#include <pthread.h> -#include <time.h> - -#define NUM_THREADS 10 -#define NUM_ITERS 50 -#define TIMEOUT_NS 100000000L - -static void *thread (void *) __attribute__ ((__noreturn__)); -static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; - -int -main (void) -{ - pthread_t th; - int i; - - for (i = 0; i < NUM_THREADS; i++) - { - if (pthread_create (&th, NULL, thread, NULL) != 0) - error (EXIT_FAILURE, 0, "cannot create thread"); - } - - (void) thread (NULL); - /* notreached */ - return 0; -} - - -static void * -thread (void *arg) -{ - int i; - pthread_t self = pthread_self (); - static int linecount; /* protected by flockfile(stdout) */ - - for (i = 0; i < NUM_ITERS; i++) - { - struct timespec ts; - - for (;;) - { - int err; - - clock_gettime (CLOCK_REALTIME, &ts); - - ts.tv_nsec += TIMEOUT_NS; - - if (ts.tv_nsec >= 1000000000L) { - ts.tv_sec++; - ts.tv_nsec -= 1000000000L; - } - - switch ((err = pthread_mutex_timedlock (&mutex, &ts))) - { - case 0: - flockfile (stdout); - printf ("%04d: thread %lu got mutex\n", ++linecount, - (unsigned long) self); - funlockfile (stdout); - break; - case ETIMEDOUT: - flockfile (stdout); - printf ("%04d: thread %lu timed out on mutex\n", ++linecount, - (unsigned long) self); - funlockfile (stdout); - continue; - default: - error (EXIT_FAILURE, err, "pthread_mutex_timedlock failure"); - } - break; - } - - ts.tv_sec = 0; - ts.tv_nsec = TIMEOUT_NS; - nanosleep (&ts, NULL); - - flockfile (stdout); - printf ("%04d: thread %lu releasing mutex\n", ++linecount, - (unsigned long) self); - funlockfile (stdout); - pthread_mutex_unlock (&mutex); - } - - pthread_exit (NULL); -} diff --git a/linuxthreads/Examples/ex11.c b/linuxthreads/Examples/ex11.c deleted file mode 100644 index abb5b5385a..0000000000 --- a/linuxthreads/Examples/ex11.c +++ /dev/null @@ -1,154 +0,0 @@ -/* Test program for timedout read/write lock functions. - Copyright (C) 2000 Free Software Foundation, Inc. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2000. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <error.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <time.h> -#include <unistd.h> - - -#define NWRITERS 15 -#define WRITETRIES 10 -#define NREADERS 15 -#define READTRIES 15 - -#define TIMEOUT 1000000 -#define DELAY 1000000 - -static pthread_rwlock_t lock = PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP; - - -static void * -writer_thread (void *nr) -{ - struct timespec ts; - struct timespec delay; - int n; - - ts.tv_sec = 0; - ts.tv_nsec = TIMEOUT; - - delay.tv_sec = 0; - delay.tv_nsec = DELAY; - - for (n = 0; n < WRITETRIES; ++n) - { - do - { - clock_gettime (CLOCK_REALTIME, &ts); - - ts.tv_nsec += 2 * TIMEOUT; - - printf ("writer thread %ld tries again\n", (long int) nr); - } - //while (pthread_rwlock_wrlock (&lock), 0); - while (pthread_rwlock_timedwrlock (&lock, &ts) == ETIMEDOUT); - - printf ("writer thread %ld succeeded\n", (long int) nr); - - nanosleep (&delay, NULL); - - pthread_rwlock_unlock (&lock); - - printf ("writer thread %ld released\n", (long int) nr); - } - - return NULL; -} - - -static void * -reader_thread (void *nr) -{ - struct timespec ts; - struct timespec delay; - int n; - - delay.tv_sec = 0; - delay.tv_nsec = DELAY; - - for (n = 0; n < READTRIES; ++n) - { - do - { - clock_gettime (CLOCK_REALTIME, &ts); - - ts.tv_nsec += TIMEOUT; - - printf ("reader thread %ld tries again\n", (long int) nr); - } - //while (pthread_rwlock_rdlock (&lock), 0); - while (pthread_rwlock_timedrdlock (&lock, &ts) == ETIMEDOUT); - - printf ("reader thread %ld succeeded\n", (long int) nr); - - nanosleep (&delay, NULL); - - pthread_rwlock_unlock (&lock); - - printf ("reader thread %ld released\n", (long int) nr); - } - - return NULL; -} - - -int -main (void) -{ - pthread_t thwr[NWRITERS]; - pthread_t thrd[NREADERS]; - int n; - void *res; - - /* Make standard error the same as standard output. */ - dup2 (1, 2); - - /* Make sure we see all message, even those on stdout. */ - setvbuf (stdout, NULL, _IONBF, 0); - - for (n = 0; n < NWRITERS; ++n) - { - int err = pthread_create (&thwr[n], NULL, writer_thread, - (void *) (long int) n); - - if (err != 0) - error (EXIT_FAILURE, err, "cannot create writer thread"); - } - - for (n = 0; n < NREADERS; ++n) - { - int err = pthread_create (&thrd[n], NULL, reader_thread, - (void *) (long int) n); - - if (err != 0) - error (EXIT_FAILURE, err, "cannot create reader thread"); - } - - /* Wait for all the threads. */ - for (n = 0; n < NWRITERS; ++n) - pthread_join (thwr[n], &res); - for (n = 0; n < NREADERS; ++n) - pthread_join (thrd[n], &res); - - return 0; -} diff --git a/linuxthreads/Examples/ex12.c b/linuxthreads/Examples/ex12.c deleted file mode 100644 index e986fec97f..0000000000 --- a/linuxthreads/Examples/ex12.c +++ /dev/null @@ -1,47 +0,0 @@ -/* Variant of ex6, but this time we use pthread_exit (). */ -#include <errno.h> -#include <stdio.h> -#include <string.h> -#include <pthread.h> -#include <unistd.h> - -static void * -__attribute__ ((noreturn)) -test_thread (void *v_param) -{ - pthread_exit (NULL); -} - -int -main (void) -{ - unsigned long count; - - setvbuf (stdout, NULL, _IONBF, 0); - - for (count = 0; count < 2000; ++count) - { - pthread_t thread; - int status; - - status = pthread_create (&thread, NULL, test_thread, NULL); - if (status != 0) - { - printf ("status = %d, count = %lu: %s\n", status, count, - strerror (errno)); - return 1; - } - else - { - printf ("count = %lu\n", count); - } - /* pthread_detach (thread); */ - if (pthread_join (thread, NULL) != 0) - { - printf ("join failed, count %lu\n", count); - return 2; - } - usleep (10); - } - return 0; -} diff --git a/linuxthreads/Examples/ex13.c b/linuxthreads/Examples/ex13.c deleted file mode 100644 index 14add6c773..0000000000 --- a/linuxthreads/Examples/ex13.c +++ /dev/null @@ -1,112 +0,0 @@ -/* Test for Pthreads/mutexes. - Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kurt Garloff <garloff@suse.de>, 2000. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -static void *thread_start (void *ptr) __attribute__ ((__noreturn__)); - - -struct thr_ctrl -{ - pthread_mutex_t mutex; - pthread_cond_t cond; - int retval; -}; - -static void -dump_mut (pthread_mutex_t * mut) -{ - size_t i; - for (i = 0; i < sizeof (*mut); i++) - printf (" %02x", *((unsigned char *) mut + i)); - printf ("\n"); -}; - -/* Helper, the opposite of pthread_cond_wait (cond, mut). */ -static void -pthr_cond_signal_mutex (pthread_cond_t * cond, pthread_mutex_t * mut) -{ - int err; - err = pthread_mutex_lock (mut); - if (err) - printf ("mutex_lock : %s\n", strerror (err)); - err = pthread_cond_signal (cond); - if (err) - printf ("cond_signal : %s\n", strerror (err)); - err = pthread_mutex_unlock (mut); - if (err) - printf ("mutex_unlock: %s\n", strerror (err)); -} - -static void * -thread_start (void *ptr) -{ - struct thr_ctrl *tc = ptr; - /* Do initialization. */ - /* ... */ - /* Signal that we are ready. */ - pthr_cond_signal_mutex (&tc->cond, &tc->mutex); - sleep (2); - pthr_cond_signal_mutex (&tc->cond, &tc->mutex); - tc->retval = 0; - pthread_exit (&tc->retval); -} - -int -main (void) -{ - struct thr_ctrl threadctrl; - pthread_t thread; - int err; - void *res = &threadctrl.retval; - pthread_mutexattr_t mutattr; - pthread_mutexattr_init (&mutattr); - pthread_mutex_init (&threadctrl.mutex, &mutattr); - pthread_cond_init (&threadctrl.cond, NULL); - err = pthread_mutex_lock (&threadctrl.mutex); - if (err) - printf ("mutex_lock : %s\n", strerror (err)); - dump_mut (&threadctrl.mutex); - pthread_create (&thread, NULL, thread_start, &threadctrl); - /* Wait until it's ready. */ - err = pthread_cond_wait (&threadctrl.cond, &threadctrl.mutex); - if (err) - printf ("cond_wait : %s\n", strerror (err)); - /* Now, we should have acquired the mutex again! */ - dump_mut (&threadctrl.mutex); - sleep (1); - dump_mut (&threadctrl.mutex); - err = pthread_cond_wait (&threadctrl.cond, &threadctrl.mutex); - if (err) - { - printf ("cond_wait : %s\n", strerror (err)); - printf ("ERROR\n"); - abort (); - }; - dump_mut (&threadctrl.mutex); - pthread_join (thread, &res); - printf ("OK\n"); - return 0; -} diff --git a/linuxthreads/Examples/ex14.c b/linuxthreads/Examples/ex14.c deleted file mode 100644 index 406e03f346..0000000000 --- a/linuxthreads/Examples/ex14.c +++ /dev/null @@ -1,133 +0,0 @@ -/* Test of POSIX barriers. */ - -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define NTHREADS 20 - -#define ROUNDS 20 - -static pthread_barrier_t barriers[NTHREADS]; - -static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; -static int counters[NTHREADS]; -static int serial[NTHREADS]; - -static void * -worker (void *arg) -{ - void *result = NULL; - int nr = (long int) arg; - int i; - - for (i = 0; i < ROUNDS; ++i) - { - int j; - int retval; - - if (nr == 0) - { - memset (counters, '\0', sizeof (counters)); - memset (serial, '\0', sizeof (serial)); - } - - retval = pthread_barrier_wait (&barriers[NTHREADS - 1]); - if (retval != 0 && retval != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("thread %d failed to wait for all the others\n", nr); - result = (void *) 1; - } - - for (j = nr; j < NTHREADS; ++j) - { - /* Increment the counter for this round. */ - pthread_mutex_lock (&lock); - ++counters[j]; - pthread_mutex_unlock (&lock); - - /* Wait for the rest. */ - retval = pthread_barrier_wait (&barriers[j]); - - /* Test the result. */ - if (nr == 0 && counters[j] != j + 1) - { - printf ("barrier in round %d released but count is %d\n", - j, counters[j]); - result = (void *) 1; - } - - if (retval != 0) - { - if (retval != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("thread %d in round %d has nonzero return value != PTHREAD_BARRIER_SERIAL_THREAD\n", - nr, j); - result = (void *) 1; - } - else - { - pthread_mutex_lock (&lock); - ++serial[j]; - pthread_mutex_unlock (&lock); - } - } - - /* Wait for the rest again. */ - retval = pthread_barrier_wait (&barriers[j]); - - /* Now we can check whether exactly one thread was serializing. */ - if (nr == 0 && serial[j] != 1) - { - printf ("not exactly one serial thread in round %d\n", j); - result = (void *) 1; - } - } - } - - return result; -} - - -#define TEST_FUNCTION do_test () -#define TIMEOUT 60 -static int -do_test (void) -{ - pthread_t threads[NTHREADS]; - int i; - void *res; - int result = 0; - - /* Initialized the barrier variables. */ - for (i = 0; i < NTHREADS; ++i) - if (pthread_barrier_init (&barriers[i], NULL, i + 1) != 0) - { - printf ("Failed to initialize barrier %d\n", i); - exit (1); - } - - /* Start the threads. */ - for (i = 0; i < NTHREADS; ++i) - if (pthread_create (&threads[i], NULL, worker, (void *) (long int) i) != 0) - { - printf ("Failed to start thread %d\n", i); - exit (1); - } - - /* And wait for them. */ - for (i = 0; i < NTHREADS; ++i) - if (pthread_join (threads[i], &res) != 0 || res != NULL) - { - printf ("thread %d returned a failure\n", i); - result = 1; - } - - if (result == 0) - puts ("all OK"); - - return result; -} - -#include "../test-skeleton.c" diff --git a/linuxthreads/Examples/ex15.c b/linuxthreads/Examples/ex15.c deleted file mode 100644 index e953b231d7..0000000000 --- a/linuxthreads/Examples/ex15.c +++ /dev/null @@ -1,58 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <pthread.h> -#include <unistd.h> - -static void *worker (void *dummy) __attribute__ ((__noreturn__)); - -static void * -worker (void *dummy) -{ - exit (26); -} - -#define TEST_FUNCTION do_test () -#define TIMEOUT 10 -static int -do_test (void) -{ - pthread_t th; - pid_t pid; - int status; - - switch ((pid = fork ())) - { - case -1: - puts ("Could not fork"); - exit (1); - case 0: - if (pthread_create(&th, NULL, worker, NULL) != 0) - { - puts ("Failed to start thread"); - exit (1); - } - for (;;); - exit (1); - default: - break; - } - - if (waitpid (pid, &status, 0) != pid) - { - puts ("waitpid failed"); - exit (1); - } - - if (!WIFEXITED (status) || WEXITSTATUS (status) != 26) - { - printf ("Wrong exit code %d\n", status); - exit (1); - } - - puts ("All OK"); - return 0; -} - -#include "../../test-skeleton.c" diff --git a/linuxthreads/Examples/ex16.c b/linuxthreads/Examples/ex16.c deleted file mode 100644 index 6509ae4515..0000000000 --- a/linuxthreads/Examples/ex16.c +++ /dev/null @@ -1,26 +0,0 @@ -/* Tst case by Jakub Jelinek <jakub@redhat.com>. */ -#include <stdlib.h> -#include <unistd.h> -#include <pthread.h> - -static void * -task (void *p) -{ - sleep (30); - return NULL; -} - -int -main (void) -{ - pthread_t t; - int status; - - status = pthread_create (&t, NULL, task, NULL); - if (status) - exit (status); - - status = pthread_detach (t); - pthread_kill_other_threads_np (); - return status; -} diff --git a/linuxthreads/Examples/ex17.c b/linuxthreads/Examples/ex17.c deleted file mode 100644 index 1bc09a5bda..0000000000 --- a/linuxthreads/Examples/ex17.c +++ /dev/null @@ -1,112 +0,0 @@ -#include <errno.h> -#include <stdio.h> -#include <string.h> -#include <pthread.h> -#include <unistd.h> -#include <limits.h> -#include <sys/mman.h> - -static pthread_mutex_t synch = PTHREAD_MUTEX_INITIALIZER; - -static void * -test_thread (void *v_param) -{ - pthread_mutex_lock (&synch); - return NULL; -} - -#define STACKSIZE 0x100000 - -int -main (void) -{ - pthread_t thread; - pthread_attr_t attr; - int status; - void *stack, *stack2; - size_t stacksize; - - pthread_attr_init (&attr); - stack = mmap (NULL, STACKSIZE, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - - if (stack == MAP_FAILED) - { - perror ("mmap failed"); - return 1; - } - - status = pthread_attr_setstack (&attr, stack, STACKSIZE); - if (status != 0) - { - printf ("pthread_attr_setstack failed: %s\n", strerror (status)); - return 1; - } - - status = pthread_attr_getstack (&attr, &stack2, &stacksize); - if (status != 0) - { - printf ("pthread_attr_getstack failed: %s\n", strerror (status)); - return 1; - } - - if (stack2 != stack || stacksize != STACKSIZE) - { - printf ("first pthread_attr_getstack returned different stack (%p,%zx)\n" - "than was set by setstack (%p,%x)\n", - stack2, stacksize, stack, STACKSIZE); - return 2; - } - - status = pthread_mutex_lock (&synch); - if (status != 0) - { - printf ("cannot get lock: %s\n", strerror (status)); - return 1; - } - - status = pthread_create (&thread, &attr, test_thread, NULL); - if (status != 0) - { - printf ("pthread_create failed: %s\n", strerror (status)); - return 1; - } - - status = pthread_getattr_np (thread, &attr); - if (status != 0) - { - printf ("pthread_getattr_np failed: %s\n", strerror (status)); - return 1; - } - - status = pthread_attr_getstack (&attr, &stack2, &stacksize); - if (status != 0) - { - printf ("pthread_attr_getstack failed: %s\n", strerror (status)); - return 1; - } - - if (stack2 != stack || stacksize != STACKSIZE) - { - printf ("second pthread_attr_getstack returned different stack (%p,%zx)\n" - "than was set by setstack (%p,%x)\n", - stack2, stacksize, stack, STACKSIZE); - return 3; - } - - status = pthread_mutex_unlock (&synch); - if (status != 0) - { - printf ("cannot release lock: %s\n", strerror (status)); - return 1; - } - - /* pthread_detach (thread); */ - if (pthread_join (thread, NULL) != 0) - { - printf ("join failed\n"); - return 1; - } - return 0; -} diff --git a/linuxthreads/Examples/ex18.c b/linuxthreads/Examples/ex18.c deleted file mode 100644 index 283396bede..0000000000 --- a/linuxthreads/Examples/ex18.c +++ /dev/null @@ -1,113 +0,0 @@ -/* - * Beat up the pthread_key_create and pthread_key_delete - * functions. - */ - -#if 0 -#define CHATTY -#endif - -#include <stdio.h> -#include <errno.h> -#include <stdlib.h> -#include <pthread.h> -#include <unistd.h> - -const int beatup_iterations = 10000; -const int num_threads = 30; -const int max_keys = 500; - -struct key_list { - struct key_list *next; - pthread_key_t key; -}; - -struct key_list *key_list; -pthread_mutex_t key_lock = PTHREAD_MUTEX_INITIALIZER; - -/* - * Create a new key and put it at the tail of a linked list. - * If the linked list grows to a certain length, delete a key from the - * head of * the list. - */ - -static void -beat_up(void) -{ - struct key_list *new = malloc(sizeof *new); - struct key_list **iter, *old_key = 0; - int key_count = 0; - - if (new == 0) { - fprintf(stderr, "malloc failed\n"); - abort(); - } - - new->next = 0; - - if (pthread_key_create(&new->key, 0) != 0) { - fprintf(stderr, "pthread_key_create failed\n"); - abort(); - } - - if (pthread_getspecific(new->key) != 0) { - fprintf(stderr, "new pthread_key_t resolves to non-null value\n"); - abort(); - } - - pthread_setspecific(new->key, (void *) 1); - -#ifdef CHATTY - printf("created key\n"); -#endif - - pthread_mutex_lock(&key_lock); - - for (iter = &key_list; *iter != 0; iter = &(*iter)->next) - key_count++; - - *iter = new; - - if (key_count > max_keys) { - old_key = key_list; - key_list = key_list->next; - } - - pthread_mutex_unlock(&key_lock); - - if (old_key != 0) { -#ifdef CHATTY - printf("deleting key\n"); -#endif - pthread_key_delete(old_key->key); - } -} - -static void * -thread(void *arg) -{ - int i; - for (i = 0; i < beatup_iterations; i++) - beat_up(); - return 0; -} - -int -main(void) -{ - int i; - pthread_attr_t detached_thread; - - pthread_attr_init(&detached_thread); - pthread_attr_setdetachstate(&detached_thread, PTHREAD_CREATE_DETACHED); - - for (i = 0; i < num_threads; i++) { - pthread_t thread_id; - while (pthread_create(&thread_id, &detached_thread, thread, 0) == EAGAIN) { - /* let some threads die, so system can breathe. :) */ - sleep(1); - } - } - - pthread_exit(0); -} diff --git a/linuxthreads/Examples/ex2.c b/linuxthreads/Examples/ex2.c deleted file mode 100644 index f2556a4206..0000000000 --- a/linuxthreads/Examples/ex2.c +++ /dev/null @@ -1,124 +0,0 @@ -/* The classic producer-consumer example. - Illustrates mutexes and conditions. - All integers between 0 and 9999 should be printed exactly twice, - once to the right of the arrow and once to the left. */ - -#include <stdio.h> -#include "pthread.h" - -#define BUFFER_SIZE 16 - -/* Circular buffer of integers. */ - -struct prodcons -{ - int buffer[BUFFER_SIZE]; /* the actual data */ - pthread_mutex_t lock; /* mutex ensuring exclusive access to buffer */ - int readpos, writepos; /* positions for reading and writing */ - pthread_cond_t notempty; /* signaled when buffer is not empty */ - pthread_cond_t notfull; /* signaled when buffer is not full */ -}; - -/* Initialize a buffer */ -static void -init (struct prodcons *b) -{ - pthread_mutex_init (&b->lock, NULL); - pthread_cond_init (&b->notempty, NULL); - pthread_cond_init (&b->notfull, NULL); - b->readpos = 0; - b->writepos = 0; -} - -/* Store an integer in the buffer */ -static void -put (struct prodcons *b, int data) -{ - pthread_mutex_lock (&b->lock); - /* Wait until buffer is not full */ - while ((b->writepos + 1) % BUFFER_SIZE == b->readpos) - { - pthread_cond_wait (&b->notfull, &b->lock); - /* pthread_cond_wait reacquired b->lock before returning */ - } - /* Write the data and advance write pointer */ - b->buffer[b->writepos] = data; - b->writepos++; - if (b->writepos >= BUFFER_SIZE) - b->writepos = 0; - /* Signal that the buffer is now not empty */ - pthread_cond_signal (&b->notempty); - pthread_mutex_unlock (&b->lock); -} - -/* Read and remove an integer from the buffer */ -static int -get (struct prodcons *b) -{ - int data; - pthread_mutex_lock (&b->lock); - /* Wait until buffer is not empty */ - while (b->writepos == b->readpos) - { - pthread_cond_wait (&b->notempty, &b->lock); - } - /* Read the data and advance read pointer */ - data = b->buffer[b->readpos]; - b->readpos++; - if (b->readpos >= BUFFER_SIZE) - b->readpos = 0; - /* Signal that the buffer is now not full */ - pthread_cond_signal (&b->notfull); - pthread_mutex_unlock (&b->lock); - return data; -} - -/* A test program: one thread inserts integers from 1 to 10000, - the other reads them and prints them. */ - -#define OVER (-1) - -struct prodcons buffer; - -static void * -producer (void *data) -{ - int n; - for (n = 0; n < 10000; n++) - { - printf ("%d --->\n", n); - put (&buffer, n); - } - put (&buffer, OVER); - return NULL; -} - -static void * -consumer (void *data) -{ - int d; - while (1) - { - d = get (&buffer); - if (d == OVER) - break; - printf ("---> %d\n", d); - } - return NULL; -} - -int -main (void) -{ - pthread_t th_a, th_b; - void *retval; - - init (&buffer); - /* Create the threads */ - pthread_create (&th_a, NULL, producer, 0); - pthread_create (&th_b, NULL, consumer, 0); - /* Wait until producer and consumer finish. */ - pthread_join (th_a, &retval); - pthread_join (th_b, &retval); - return 0; -} diff --git a/linuxthreads/Examples/ex3.c b/linuxthreads/Examples/ex3.c deleted file mode 100644 index b80b323a33..0000000000 --- a/linuxthreads/Examples/ex3.c +++ /dev/null @@ -1,152 +0,0 @@ -/* Multi-thread searching. - Illustrates: thread cancellation, cleanup handlers. */ - -#include <errno.h> -#include <stdio.h> -#include <unistd.h> -#include <stdlib.h> -#include <sys/types.h> -#include <pthread.h> - -/* Defines the number of searching threads */ -#define NUM_THREADS 5 - -/* Function prototypes */ -void *search(void *); -void print_it(void *); - -/* Global variables */ -pthread_t threads[NUM_THREADS]; -pthread_mutex_t lock; -int tries; -volatile int started; - -int main(int argc, char ** argv) -{ - int i; - int pid; - - /* create a number to search for */ - pid = getpid(); - printf("Searching for the number = %d...\n", pid); - - /* Initialize the mutex lock */ - pthread_mutex_init(&lock, NULL); - - /* Create the searching threads */ - for (started=0; started<NUM_THREADS; started++) - pthread_create(&threads[started], NULL, search, (void *) (long int) pid); - - /* Wait for (join) all the searching threads */ - for (i=0; i<NUM_THREADS; i++) - pthread_join(threads[i], NULL); - - printf("It took %d tries to find the number.\n", tries); - - /* Exit the program */ - return 0; -} - -/* This is the cleanup function that is called - when the threads are cancelled */ - -void print_it(void *arg) -{ - int *try = (int *) arg; - pthread_t tid; - - /* Get the calling thread's ID */ - tid = pthread_self(); - - /* Print where the thread was in its search when it was cancelled */ - printf("Thread %lx was canceled on its %d try.\n", tid, *try); -} - -/* This is the search routine that is executed in each thread */ - -void *search(void *arg) -{ - int num = (long int) arg; - int i, j, ntries; - pthread_t tid; - - /* get the calling thread ID */ - tid = pthread_self(); - - /* use the thread ID to set the seed for the random number generator */ - /* Since srand and rand are not thread-safe, serialize with lock */ - - /* Try to lock the mutex lock -- - if locked, check to see if the thread has been cancelled - if not locked then continue */ - while (pthread_mutex_trylock(&lock) == EBUSY) - pthread_testcancel(); - - srand((int)tid); - i = rand() & 0xFFFFFF; - pthread_mutex_unlock(&lock); - ntries = 0; - - /* Set the cancellation parameters -- - - Enable thread cancellation - - Defer the action of the cancellation */ - - pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); - pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL); - - while (started < NUM_THREADS) - sched_yield (); - - /* Push the cleanup routine (print_it) onto the thread - cleanup stack. This routine will be called when the - thread is cancelled. Also note that the pthread_cleanup_push - call must have a matching pthread_cleanup_pop call. The - push and pop calls MUST be at the same lexical level - within the code */ - - /* Pass address of `ntries' since the current value of `ntries' is not - the one we want to use in the cleanup function */ - - pthread_cleanup_push(print_it, (void *)&ntries); - - /* Loop forever */ - while (1) { - i = (i + 1) & 0xFFFFFF; - ntries++; - - /* Does the random number match the target number? */ - if (num == i) { - /* Try to lock the mutex lock -- - if locked, check to see if the thread has been cancelled - if not locked then continue */ - while (pthread_mutex_trylock(&lock) == EBUSY) - pthread_testcancel(); - - /* Set the global variable for the number of tries */ - tries = ntries; - printf("Thread %lx found the number!\n", tid); - - /* Cancel all the other threads */ - for (j=0; j<NUM_THREADS; j++) - if (threads[j] != tid) pthread_cancel(threads[j]); - - /* Break out of the while loop */ - break; - } - - /* Every 100 tries check to see if the thread has been cancelled. */ - if (ntries % 100 == 0) { - pthread_testcancel(); - } - } - - /* The only way we can get here is when the thread breaks out - of the while loop. In this case the thread that makes it here - has found the number we are looking for and does not need to run - the thread cleanup function. This is why the pthread_cleanup_pop - function is called with a 0 argument; this will pop the cleanup - function off the stack without executing it */ - - pthread_cleanup_pop(0); - return((void *)0); -} diff --git a/linuxthreads/Examples/ex4.c b/linuxthreads/Examples/ex4.c deleted file mode 100644 index 5c8b929e22..0000000000 --- a/linuxthreads/Examples/ex4.c +++ /dev/null @@ -1,115 +0,0 @@ -/* Making a library function that uses static variables thread-safe. - Illustrates: thread-specific data, pthread_once(). */ - -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <pthread.h> - -/* This is a typical example of a library function that uses - static variables to accumulate results between calls. - Here, it just returns the concatenation of all string arguments - that were given to it. */ - -#if 0 - -char * -str_accumulate (char *s) -{ - static char accu[1024] = { 0 }; - strcat (accu, s); - return accu; -} - -#endif - -/* Of course, this cannot be used in a multi-threaded program - because all threads store "accu" at the same location. - So, we'll use thread-specific data to have a different "accu" - for each thread. */ - -/* Key identifying the thread-specific data */ -static pthread_key_t str_key; -/* "Once" variable ensuring that the key for str_alloc will be allocated - exactly once. */ -static pthread_once_t str_alloc_key_once = PTHREAD_ONCE_INIT; - -/* Forward functions */ -static void str_alloc_key (void); -static void str_alloc_destroy_accu (void *accu); - -/* Thread-safe version of str_accumulate */ - -static char * -str_accumulate (const char *s) -{ - char *accu; - - /* Make sure the key is allocated */ - pthread_once (&str_alloc_key_once, str_alloc_key); - /* Get the thread-specific data associated with the key */ - accu = (char *) pthread_getspecific (str_key); - /* It's initially NULL, meaning that we must allocate the buffer first. */ - if (accu == NULL) - { - accu = malloc (1024); - if (accu == NULL) - return NULL; - accu[0] = 0; - /* Store the buffer pointer in the thread-specific data. */ - pthread_setspecific (str_key, (void *) accu); - printf ("Thread %lx: allocating buffer at %p\n", pthread_self (), accu); - } - /* Now we can use accu just as in the non thread-safe code. */ - strcat (accu, s); - return accu; -} - -/* Function to allocate the key for str_alloc thread-specific data. */ - -static void -str_alloc_key (void) -{ - pthread_key_create (&str_key, str_alloc_destroy_accu); - printf ("Thread %lx: allocated key %d\n", pthread_self (), str_key); -} - -/* Function to free the buffer when the thread exits. */ -/* Called only when the thread-specific data is not NULL. */ - -static void -str_alloc_destroy_accu (void *accu) -{ - printf ("Thread %lx: freeing buffer at %p\n", pthread_self (), accu); - free (accu); -} - -/* Test program */ - -static void * -process (void *arg) -{ - char *res; - res = str_accumulate ("Result of "); - res = str_accumulate ((char *) arg); - res = str_accumulate (" thread"); - printf ("Thread %lx: \"%s\"\n", pthread_self (), res); - return NULL; -} - -int -main (int argc, char **argv) -{ - char *res; - pthread_t th1, th2; - - res = str_accumulate ("Result of "); - pthread_create (&th1, NULL, process, (void *) "first"); - pthread_create (&th2, NULL, process, (void *) "second"); - res = str_accumulate ("initial thread"); - printf ("Thread %lx: \"%s\"\n", pthread_self (), res); - pthread_join (th1, NULL); - pthread_join (th2, NULL); - return 0; -} diff --git a/linuxthreads/Examples/ex5.c b/linuxthreads/Examples/ex5.c deleted file mode 100644 index d39d487603..0000000000 --- a/linuxthreads/Examples/ex5.c +++ /dev/null @@ -1,114 +0,0 @@ -/* The classic producer-consumer example, implemented with semaphores. - All integers between 0 and 9999 should be printed exactly twice, - once to the right of the arrow and once to the left. */ - -#include <stdio.h> -#include "pthread.h" -#include "semaphore.h" - -#define BUFFER_SIZE 16 - -/* Circular buffer of integers. */ - -struct prodcons -{ - int buffer[BUFFER_SIZE]; /* the actual data */ - int readpos, writepos; /* positions for reading and writing */ - sem_t sem_read; /* number of elements available for reading */ - sem_t sem_write; /* number of locations available for writing */ -}; - -/* Initialize a buffer */ - -static void -init (struct prodcons *b) -{ - sem_init (&b->sem_write, 0, BUFFER_SIZE - 1); - sem_init (&b->sem_read, 0, 0); - b->readpos = 0; - b->writepos = 0; -} - -/* Store an integer in the buffer */ - -static void -put (struct prodcons *b, int data) -{ - /* Wait until buffer is not full */ - sem_wait (&b->sem_write); - /* Write the data and advance write pointer */ - b->buffer[b->writepos] = data; - b->writepos++; - if (b->writepos >= BUFFER_SIZE) - b->writepos = 0; - /* Signal that the buffer contains one more element for reading */ - sem_post (&b->sem_read); -} - -/* Read and remove an integer from the buffer */ - -static int -get (struct prodcons *b) -{ - int data; - /* Wait until buffer is not empty */ - sem_wait (&b->sem_read); - /* Read the data and advance read pointer */ - data = b->buffer[b->readpos]; - b->readpos++; - if (b->readpos >= BUFFER_SIZE) - b->readpos = 0; - /* Signal that the buffer has now one more location for writing */ - sem_post (&b->sem_write); - return data; -} - -/* A test program: one thread inserts integers from 1 to 10000, - the other reads them and prints them. */ - -#define OVER (-1) - -struct prodcons buffer; - -static void * -producer (void *data) -{ - int n; - for (n = 0; n < 10000; n++) - { - printf ("%d --->\n", n); - put (&buffer, n); - } - put (&buffer, OVER); - return NULL; -} - -static void * -consumer (void *data) -{ - int d; - while (1) - { - d = get (&buffer); - if (d == OVER) - break; - printf ("---> %d\n", d); - } - return NULL; -} - -int -main (void) -{ - pthread_t th_a, th_b; - void *retval; - - init (&buffer); - /* Create the threads */ - pthread_create (&th_a, NULL, producer, 0); - pthread_create (&th_b, NULL, consumer, 0); - /* Wait until producer and consumer finish. */ - pthread_join (th_a, &retval); - pthread_join (th_b, &retval); - return 0; -} diff --git a/linuxthreads/Examples/ex6.c b/linuxthreads/Examples/ex6.c deleted file mode 100644 index 9a0266828b..0000000000 --- a/linuxthreads/Examples/ex6.c +++ /dev/null @@ -1,46 +0,0 @@ -#include <errno.h> -#include <stdio.h> -#include <string.h> -#include <pthread.h> -#include <unistd.h> - -static void * -test_thread (void *v_param) -{ - return NULL; -} - -int -main (void) -{ - unsigned long count; - - setvbuf (stdout, NULL, _IONBF, 0); - - for (count = 0; count < 2000; ++count) - { - pthread_t thread; - int status; - - status = pthread_create (&thread, NULL, test_thread, NULL); - if (status != 0) - { - printf ("status = %d, count = %lu: %s\n", status, count, - strerror (errno)); - return 1; - } - else - { - printf ("count = %lu\n", count); - } - /* pthread_detach (thread); */ - int err = pthread_join (thread, NULL); - if (err != 0) - { - printf ("join failed (%s), count %lu\n", strerror (err), count); - return 2; - } - usleep (10); - } - return 0; -} diff --git a/linuxthreads/Examples/ex7.c b/linuxthreads/Examples/ex7.c deleted file mode 100644 index d9db33c5cd..0000000000 --- a/linuxthreads/Examples/ex7.c +++ /dev/null @@ -1,45 +0,0 @@ -/* This is a test of the special shutdown that occurs - when all threads, including the main one, call - pthread_exit(). It demonstrates that atexit - handlers are properly called, and that the - output is properly flushed even when stdout is - redirected to a file, and therefore fully buffered. */ - -#include <stdio.h> -#include <stdlib.h> -#include <pthread.h> - -#define NTHREADS 20 /* number of threads */ - -static void * -thread (void *arg) -{ - printf ("thread terminating\n"); - return 0; -} - -static void -cleanup (void) -{ - printf ("atexit handler called\n"); -} - -int -main (void) -{ - int i; - - atexit (cleanup); - - for (i = 0; i < NTHREADS; i++) - { - pthread_t id; - if (pthread_create (&id, 0, thread, 0) != 0) - { - fprintf (stderr, "pthread_create failed\n"); - abort (); - } - } - - pthread_exit (0); -} diff --git a/linuxthreads/Examples/ex8.c b/linuxthreads/Examples/ex8.c deleted file mode 100644 index bda81b9c61..0000000000 --- a/linuxthreads/Examples/ex8.c +++ /dev/null @@ -1,101 +0,0 @@ -/* Tests for fork in multi-threaded environment. - Copyright (C) 2000 Free Software Foundation, Inc. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <error.h> -#include <stdlib.h> -#include <pthread.h> -#include <unistd.h> -#include <sys/wait.h> - -enum -{ - PREPARE_BIT = 1, - PARENT_BIT = 2, - CHILD_BIT = 4 -}; - -static int var; - -static void -prepare (void) -{ - var |= PREPARE_BIT; -} - -static void -parent (void) -{ - var |= PARENT_BIT; -} - -static void -child (void) -{ - var |= CHILD_BIT; -} - - -static void *thread (void *arg); - - -int -main (void) -{ - pthread_t th; - void *res; - - pthread_atfork (prepare, parent, child); - - if (pthread_create (&th, NULL, thread, NULL) != 0) - error (EXIT_FAILURE, 0, "cannot create thread"); - - pthread_join (th, &res); - - return (int) (long int) res; -} - - -static void * -thread (void *arg) -{ - int status; - pid_t pid; - - pid = fork (); - if (pid == 0) - { - /* We check whether the `prepare' and `child' function ran. */ - exit (var != (PREPARE_BIT | CHILD_BIT)); - } - else if (pid == (pid_t) -1) - error (EXIT_FAILURE, errno, "cannot fork"); - - if (waitpid (pid, &status, 0) != pid) - error (EXIT_FAILURE, errno, "wrong child"); - - if (WTERMSIG (status) != 0) - error (EXIT_FAILURE, 0, "Child terminated incorrectly"); - status = WEXITSTATUS (status); - - if (status == 0) - status = var != (PREPARE_BIT | PARENT_BIT); - - return (void *) (long int) status; -} diff --git a/linuxthreads/Examples/ex9.c b/linuxthreads/Examples/ex9.c deleted file mode 100644 index 3c8b8142e1..0000000000 --- a/linuxthreads/Examples/ex9.c +++ /dev/null @@ -1,98 +0,0 @@ -/* Tests for pthread_barrier_* functions. - Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>, 2000. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <error.h> -#include <stdio.h> -#include <stdlib.h> -#include <pthread.h> - -#define NUM_THREADS 10 -#define NUM_ITERS 500 - -static void *thread (void *) __attribute__ ((__noreturn__)); -static pthread_barrier_t barrier; - -int -main (void) -{ - pthread_t thread_list[NUM_THREADS]; - int i; - - if (pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1) != 0) - error (EXIT_FAILURE, 0, "cannot initialize barrier"); - - for (i = 0; i < NUM_THREADS; i++) - { - if (pthread_create (&thread_list[i], NULL, thread, NULL) != 0) - error (EXIT_FAILURE, 0, "cannot create thread"); - } - - (void) thread (NULL); - - for (i = 0; i < NUM_THREADS; i++) - { - pthread_join(thread_list[i], NULL); - } - - return 0; -} - - -static void * -thread (void *arg) -{ - int i; - pthread_t self = pthread_self (); - static pthread_t last_serial_thread; - static int linecount; /* protected by flockfile(stdout) */ - - for (i = 0; i < NUM_ITERS; i++) - { - switch (pthread_barrier_wait (&barrier)) - { - case 0: - flockfile (stdout); - printf ("%04d: non-serial thread %lu\n", ++linecount, - (unsigned long) self); - funlockfile (stdout); - break; - case PTHREAD_BARRIER_SERIAL_THREAD: - flockfile (stdout); - printf ("%04d: serial thread %lu\n", ++linecount, - (unsigned long) self); - funlockfile (stdout); - last_serial_thread = self; - break; - default: - /* Huh? */ - error (EXIT_FAILURE, 0, "unexpected return value from barrier wait"); - } - } - - if (pthread_equal (self, last_serial_thread)) - { - flockfile (stdout); - printf ("%04d: last serial thread %lu terminating process\n", - ++linecount, (unsigned long) self); - funlockfile (stdout); - } - - pthread_exit(NULL); -} diff --git a/linuxthreads/Examples/tststatic.c b/linuxthreads/Examples/tststatic.c deleted file mode 100644 index 421011a3c4..0000000000 --- a/linuxthreads/Examples/tststatic.c +++ /dev/null @@ -1 +0,0 @@ -#include "ex1.c" diff --git a/linuxthreads/FAQ.html b/linuxthreads/FAQ.html deleted file mode 100644 index 21be33ec4c..0000000000 --- a/linuxthreads/FAQ.html +++ /dev/null @@ -1,1039 +0,0 @@ -<HTML> -<HEAD> -<TITLE>LinuxThreads Frequently Asked Questions</TITLE> -</HEAD> -<BODY> -<H1 ALIGN=center>LinuxThreads Frequently Asked Questions <BR> - (with answers)</H1> -<H2 ALIGN=center>[For LinuxThreads version 0.8]</H2> - -<HR><P> - -<A HREF="#A">A. The big picture</A><BR> -<A HREF="#B">B. Getting more information</A><BR> -<A HREF="#C">C. Issues related to the C library</A><BR> -<A HREF="#D">D. Problems, weird behaviors, potential bugs</A><BR> -<A HREF="#E">E. Missing functions, wrong types, etc</A><BR> -<A HREF="#F">F. C++ issues</A><BR> -<A HREF="#G">G. Debugging LinuxThreads programs</A><BR> -<A HREF="#H">H. Compiling multithreaded code; errno madness</A><BR> -<A HREF="#I">I. X-Windows and other libraries</A><BR> -<A HREF="#J">J. Signals and threads</A><BR> -<A HREF="#K">K. Internals of LinuxThreads</A><P> - -<HR> -<P> - -<H2><A NAME="A">A. The big picture</A></H2> - -<H4><A NAME="A.1">A.1: What is LinuxThreads?</A></H4> - -LinuxThreads is a Linux library for multi-threaded programming. -It implements the Posix 1003.1c API (Application Programming -Interface) for threads. It runs on any Linux system with kernel 2.0.0 -or more recent, and a suitable C library (see section <A HREF="C">C</A>). -<P> - -<H4><A NAME="A.2">A.2: What are threads?</A></H4> - -A thread is a sequential flow of control through a program. -Multi-threaded programming is, thus, a form of parallel programming -where several threads of control are executing concurrently in the -program. All threads execute in the same memory space, and can -therefore work concurrently on shared data.<P> - -Multi-threaded programming differs from Unix-style multi-processing in -that all threads share the same memory space (and a few other system -resources, such as file descriptors), instead of running in their own -memory space as is the case with Unix processes.<P> - -Threads are useful for two reasons. First, they allow a program to -exploit multi-processor machines: the threads can run in parallel on -several processors, allowing a single program to divide its work -between several processors, thus running faster than a single-threaded -program, which runs on only one processor at a time. Second, some -programs are best expressed as several threads of control that -communicate together, rather than as one big monolithic sequential -program. Examples include server programs, overlapping asynchronous -I/O, and graphical user interfaces.<P> - -<H4><A NAME="A.3">A.3: What is POSIX 1003.1c?</A></H4> - -It's an API for multi-threaded programming standardized by IEEE as -part of the POSIX standards. Most Unix vendors have endorsed the -POSIX 1003.1c standard. Implementations of the 1003.1c API are -already available under Sun Solaris 2.5, Digital Unix 4.0, -Silicon Graphics IRIX 6, and should soon be available from other -vendors such as IBM and HP. More generally, the 1003.1c API is -replacing relatively quickly the proprietary threads library that were -developed previously under Unix, such as Mach cthreads, Solaris -threads, and IRIX sprocs. Thus, multithreaded programs using the -1003.1c API are likely to run unchanged on a wide variety of Unix -platforms.<P> - -<H4><A NAME="A.4">A.4: What is the status of LinuxThreads?</A></H4> - -LinuxThreads implements almost all of Posix 1003.1c, as well as a few -extensions. The only part of LinuxThreads that does not conform yet -to Posix is signal handling (see section <A HREF="#J">J</A>). Apart -from the signal stuff, all the Posix 1003.1c base functionality, -as well as a number of optional extensions, are provided and conform -to the standard (to the best of my knowledge). -The signal stuff is hard to get right, at least without special kernel -support, and while I'm definitely looking at ways to implement the -Posix behavior for signals, this might take a long time before it's -completed.<P> - -<H4><A NAME="A.5">A.5: How stable is LinuxThreads?</A></H4> - -The basic functionality (thread creation and termination, mutexes, -conditions, semaphores) is very stable. Several industrial-strength -programs, such as the AOL multithreaded Web server, use LinuxThreads -and seem quite happy about it. There used to be some rough edges in -the LinuxThreads / C library interface with libc 5, but glibc 2 -fixes all of those problems and is now the standard C library on major -Linux distributions (see section <A HREF="#C">C</A>). <P> - -<HR> -<P> - -<H2><A NAME="B">B. Getting more information</A></H2> - -<H4><A NAME="B.1">B.1: What are good books and other sources of -information on POSIX threads?</A></H4> - -The FAQ for comp.programming.threads lists several books: -<A HREF="http://www.serpentine.com/~bos/threads-faq/">http://www.serpentine.com/~bos/threads-faq/</A>.<P> - -There are also some online tutorials. Follow the links from the -LinuxThreads web page: -<A HREF="http://pauillac.inria.fr/~xleroy/linuxthreads">http://pauillac.inria.fr/~xleroy/linuxthreads</A>.<P> - -<H4><A NAME="B.2">B.2: I'd like to be informed of future developments on -LinuxThreads. Is there a mailing list for this purpose?</A></H4> - -I post LinuxThreads-related announcements on the newsgroup -<A HREF="news:comp.os.linux.announce">comp.os.linux.announce</A>, -and also on the mailing list -<code>linux-threads@magenet.com</code>. -You can subscribe to the latter by writing -<A HREF="mailto:majordomo@magenet.com">majordomo@magenet.com</A>.<P> - -<H4><A NAME="B.3">B.3: What are good places for discussing -LinuxThreads?</A></H4> - -For questions about programming with POSIX threads in general, use -the newsgroup -<A HREF="news:comp.programming.threads">comp.programming.threads</A>. -Be sure you read the -<A HREF="http://www.serpentine.com/~bos/threads-faq/">FAQ</A> -for this group before you post.<P> - -For Linux-specific questions, use -<A -HREF="news:comp.os.linux.development.apps">comp.os.linux.development.apps</A> -and <A -HREF="news:comp.os.linux.development.kernel">comp.os.linux.development.kernel</A>. -The latter is especially appropriate for questions relative to the -interface between the kernel and LinuxThreads.<P> - -<H4><A NAME="B.4">B.4: How should I report a possible bug in -LinuxThreads?</A></H4> - -If you're using glibc 2, the best way by far is to use the -<code>glibcbug</code> script to mail a bug report to the glibc -maintainers. <P> - -If you're using an older libc, or don't have the <code>glibcbug</code> -script on your machine, then e-mail me directly -(<code>Xavier.Leroy@inria.fr</code>). <P> - -In both cases, before sending the bug report, make sure that it is not -addressed already in this FAQ. Also, try to send a short program that -reproduces the weird behavior you observed. <P> - -<H4><A NAME="B.5">B.5: I'd like to read the POSIX 1003.1c standard. Is -it available online?</A></H4> - -Unfortunately, no. POSIX standards are copyrighted by IEEE, and -IEEE does not distribute them freely. You can buy paper copies from -IEEE, but the price is fairly high ($120 or so). If you disagree with -this policy and you're an IEEE member, be sure to let them know.<P> - -On the other hand, you probably don't want to read the standard. It's -very hard to read, written in standard-ese, and targeted to -implementors who already know threads inside-out. A good book on -POSIX threads provides the same information in a much more readable form. -I can personally recommend Dave Butenhof's book, <CITE>Programming -with POSIX threads</CITE> (Addison-Wesley). Butenhof was part of the -POSIX committee and also designed the Digital Unix implementations of -POSIX threads, and it shows.<P> - -Another good source of information is the X/Open Group Single Unix -specification which is available both -<A HREF="http://www.rdg.opengroup.org/onlinepubs/7908799/index.html">on-line</A> -and as a -<A HREF="http://www.UNIX-systems.org/gosolo2/">book and CD/ROM</A>. -That specification includes pretty much all the POSIX standards, -including 1003.1c, with some extensions and clarifications.<P> - -<HR> -<P> - -<H2><A NAME="C">C. Issues related to the C library</A></H2> - -<H4><A NAME="C.1">C.1: Which version of the C library should I use -with LinuxThreads?</A></H4> - -The best choice by far is glibc 2, a.k.a. libc 6. It offers very good -support for multi-threading, and LinuxThreads has been closely -integrated with glibc 2. The glibc 2 distribution contains the -sources of a specially adapted version of LinuxThreads.<P> - -glibc 2 comes preinstalled as the default C library on several Linux -distributions, such as RedHat 5 and up, and Debian 2. -Those distributions include the version of LinuxThreads matching -glibc 2.<P> - -<H4><A NAME="C.2">C.2: My system has libc 5 preinstalled, not glibc -2. Can I still use LinuxThreads?</H4> - -Yes, but you're likely to run into some problems, as libc 5 only -offers minimal support for threads and contains some bugs that affect -multithreaded programs. <P> - -The versions of libc 5 that work best with LinuxThreads are -libc 5.2.18 on the one hand, and libc 5.4.12 or later on the other hand. -Avoid 5.3.12 and 5.4.7: these have problems with the per-thread errno -variable. <P> - -<H4><A NAME="C.3">C.3: So, should I switch to glibc 2, or stay with a -recent libc 5?</A></H4> - -I'd recommend you switch to glibc 2. Even for single-threaded -programs, glibc 2 is more solid and more standard-conformant than libc -5. And the shortcomings of libc 5 almost preclude any serious -multi-threaded programming.<P> - -Switching an already installed -system from libc 5 to glibc 2 is not completely straightforward. -See the <A HREF="http://sunsite.unc.edu/LDP/HOWTO/Glibc2-HOWTO.html">Glibc2 -HOWTO</A> for more information. Much easier is (re-)installing a -Linux distribution based on glibc 2, such as RedHat 6.<P> - -<H4><A NAME="C.4">C.4: Where can I find glibc 2 and the version of -LinuxThreads that goes with it?</A></H4> - -On <code>prep.ai.mit.edu</code> and its many, many mirrors around the world. -See <A -HREF="http://www.gnu.org/order/ftp.html">http://www.gnu.org/order/ftp.html</A> -for a list of mirrors.<P> - -<H4><A NAME="C.5">C.5: Where can I find libc 5 and the version of -LinuxThreads that goes with it?</A></H4> - -For libc 5, see <A HREF="ftp://sunsite.unc.edu/pub/Linux/devel/GCC/"><code>ftp://sunsite.unc.edu/pub/Linux/devel/GCC/</code></A>.<P> - -For the libc 5 version of LinuxThreads, see -<A HREF="ftp://ftp.inria.fr/INRIA/Projects/cristal/Xavier.Leroy/linuxthreads/">ftp://ftp.inria.fr/INRIA/Projects/cristal/Xavier.Leroy/linuxthreads/</A>.<P> - -<H4><A NAME="C.6">C.6: How can I recompile the glibc 2 version of the -LinuxThreads sources?</A></H4> - -You must transfer the whole glibc sources, then drop the LinuxThreads -sources in the <code>linuxthreads/</code> subdirectory, then recompile -glibc as a whole. There are now too many inter-dependencies between -LinuxThreads and glibc 2 to allow separate re-compilation of LinuxThreads. -<P> - -<H4><A NAME="C.7">C.7: What is the correspondence between LinuxThreads -version numbers, libc version numbers, and RedHat version -numbers?</A></H4> - -Here is a summary. (Information on Linux distributions other than -RedHat are welcome.)<P> - -<TABLE> -<TR><TD>LinuxThreads </TD> <TD>C library</TD> <TD>RedHat</TD></TR> -<TR><TD>0.7, 0.71 (for libc 5)</TD> <TD>libc 5.x</TD> <TD>RH 4.2</TD></TR> -<TR><TD>0.7, 0.71 (for glibc 2)</TD> <TD>glibc 2.0.x</TD> <TD>RH 5.x</TD></TR> -<TR><TD>0.8</TD> <TD>glibc 2.1.1</TD> <TD>RH 6.0</TD></TR> -<TR><TD>0.8</TD> <TD>glibc 2.1.2</TD> <TD>not yet released</TD></TR> -</TABLE> -<P> - -<HR> -<P> - -<H2><A NAME="D">D. Problems, weird behaviors, potential bugs</A></H2> - -<H4><A NAME="D.1">D.1: When I compile LinuxThreads, I run into problems in -file <code>libc_r/dirent.c</code></A></H4> - -You probably mean: -<PRE> - libc_r/dirent.c:94: structure has no member named `dd_lock' -</PRE> -I haven't actually seen this problem, but several users reported it. -My understanding is that something is wrong in the include files of -your Linux installation (<code>/usr/include/*</code>). Make sure -you're using a supported version of the libc 5 library. (See question <A -HREF="#C.2">C.2</A>).<P> - -<H4><A NAME="D.2">D.2: When I compile LinuxThreads, I run into problems with -<CODE>/usr/include/sched.h</CODE>: there are several occurrences of -<CODE>_p</CODE> that the C compiler does not understand</A></H4> - -Yes, <CODE>/usr/include/sched.h</CODE> that comes with libc 5.3.12 is broken. -Replace it with the <code>sched.h</code> file contained in the -LinuxThreads distribution. But really you should not be using libc -5.3.12 with LinuxThreads! (See question <A HREF="#C.2">C.1</A>.)<P> - -<H4><A NAME="D.3">D.3: My program does <CODE>fdopen()</CODE> on a file -descriptor opened on a pipe. When I link it with LinuxThreads, -<CODE>fdopen()</CODE> always returns NULL!</A></H4> - -You're using one of the buggy versions of libc (5.3.12, 5.4.7., etc). -See question <A HREF="#C.1">C.1</A> above.<P> - -<H4><A NAME="D.4">D.4: My program creates a lot of threads, and after -a while <CODE>pthread_create()</CODE> no longer returns!</A></H4> - -This is known bug in the version of LinuxThreads that comes with glibc -2.1.1. An upgrade to 2.1.2 is recommended. <P> - -<H4><A NAME="D.5">D.5: When I'm running a program that creates N -threads, <code>top</code> or <code>ps</code> -display N+2 processes that are running my program. What do all these -processes correspond to?</A></H4> - -Due to the general "one process per thread" model, there's one process -for the initial thread and N processes for the threads it created -using <CODE>pthread_create</CODE>. That leaves one process -unaccounted for. That extra process corresponds to the "thread -manager" thread, a thread created internally by LinuxThreads to handle -thread creation and thread termination. This extra thread is asleep -most of the time. - -<H4><A NAME="D.6">D.6: Scheduling seems to be very unfair when there -is strong contention on a mutex: instead of giving the mutex to each -thread in turn, it seems that it's almost always the same thread that -gets the mutex. Isn't this completely broken behavior?</A></H4> - -That behavior has mostly disappeared in recent releases of -LinuxThreads (version 0.8 and up). It was fairly common in older -releases, though. - -What happens in LinuxThreads 0.7 and before is the following: when a -thread unlocks a mutex, all other threads that were waiting on the -mutex are sent a signal which makes them runnable. However, the -kernel scheduler may or may not restart them immediately. If the -thread that unlocked the mutex tries to lock it again immediately -afterwards, it is likely that it will succeed, because the threads -haven't yet restarted. This results in an apparently very unfair -behavior, when the same thread repeatedly locks and unlocks the mutex, -while other threads can't lock the mutex.<P> - -In LinuxThreads 0.8 and up, <code>pthread_unlock</code> restarts only -one waiting thread, and pre-assign the mutex to that thread. Hence, -if the thread that unlocked the mutex tries to lock it again -immediately, it will block until other waiting threads have had a -chance to lock and unlock the mutex. This results in much fairer -scheduling.<P> - -Notice however that even the old "unfair" behavior is perfectly -acceptable with respect to the POSIX standard: for the default -scheduling policy, POSIX makes no guarantees of fairness, such as "the -thread waiting for the mutex for the longest time always acquires it -first". Properly written multithreaded code avoids that kind of heavy -contention on mutexes, and does not run into fairness problems. If -you need scheduling guarantees, you should consider using the -real-time scheduling policies <code>SCHED_RR</code> and -<code>SCHED_FIFO</code>, which have precisely defined scheduling -behaviors. <P> - -<H4><A NAME="D.7">D.7: I have a simple test program with two threads -that do nothing but <CODE>printf()</CODE> in tight loops, and from the -printout it seems that only one thread is running, the other doesn't -print anything!</A></H4> - -Again, this behavior is characteristic of old releases of LinuxThreads -(0.7 and before); more recent versions (0.8 and up) should not exhibit -this behavior.<P> - -The reason for this behavior is explained in -question <A HREF="#D.6">D.6</A> above: <CODE>printf()</CODE> performs -locking on <CODE>stdout</CODE>, and thus your two threads contend very -heavily for the mutex associated with <CODE>stdout</CODE>. But if you -do some real work between two calls to <CODE>printf()</CODE>, you'll -see that scheduling becomes much smoother.<P> - -<H4><A NAME="D.8">D.8: I've looked at <code><pthread.h></code> -and there seems to be a gross error in the <code>pthread_cleanup_push</code> -macro: it opens a block with <code>{</code> but does not close it! -Surely you forgot a <code>}</code> at the end of the macro, right? -</A></H4> - -Nope. That's the way it should be. The closing brace is provided by -the <code>pthread_cleanup_pop</code> macro. The POSIX standard -requires <code>pthread_cleanup_push</code> and -<code>pthread_cleanup_pop</code> to be used in matching pairs, at the -same level of brace nesting. This allows -<code>pthread_cleanup_push</code> to open a block in order to -stack-allocate some data structure, and -<code>pthread_cleanup_pop</code> to close that block. It's ugly, but -it's the standard way of implementing cleanup handlers.<P> - -<H4><A NAME="D.9">D.9: I tried to use real-time threads and my program -loops like crazy and freezes the whole machine!</A></H4> - -Versions of LinuxThreads prior to 0.8 are susceptible to ``livelocks'' -(one thread loops, consuming 100% of the CPU time) in conjunction with -real-time scheduling. Since real-time threads and processes have -higher priority than normal Linux processes, all other processes on -the machine, including the shell, the X server, etc, cannot run and -the machine appears frozen.<P> - -The problem is fixed in LinuxThreads 0.8.<P> - -<H4><A NAME="D.10">D.10: My application needs to create thousands of -threads, or maybe even more. Can I do this with -LinuxThreads?</A></H4> - -No. You're going to run into several hard limits: -<UL> -<LI>Each thread, from the kernel's standpoint, is one process. Stock -Linux kernels are limited to at most 512 processes for the super-user, -and half this number for regular users. This can be changed by -changing <code>NR_TASKS</code> in <code>include/linux/tasks.h</code> -and recompiling the kernel. On the x86 processors at least, -architectural constraints seem to limit <code>NR_TASKS</code> to 4090 -at most. -<LI>LinuxThreads contains a table of all active threads. This table -has room for 1024 threads at most. To increase this limit, you must -change <code>PTHREAD_THREADS_MAX</code> in the LinuxThreads sources -and recompile. -<LI>By default, each thread reserves 2M of virtual memory space for -its stack. This space is just reserved; actual memory is allocated -for the stack on demand. But still, on a 32-bit processor, the total -virtual memory space available for the stacks is on the order of 1G, -meaning that more than 500 threads will have a hard time fitting in. -You can overcome this limitation by moving to a 64-bit platform, or by -allocating smaller stacks yourself using the <code>setstackaddr</code> -attribute. -<LI>Finally, the Linux kernel contains many algorithms that run in -time proportional to the number of process table entries. Increasing -this number drastically will slow down the kernel operations -noticeably. -</UL> -(Other POSIX threads libraries have similar limitations, by the way.) -For all those reasons, you'd better restructure your application so -that it doesn't need more than, say, 100 threads. For instance, -in the case of a multithreaded server, instead of creating a new -thread for each connection, maintain a fixed-size pool of worker -threads that pick incoming connection requests from a queue.<P> - -<HR> -<P> - -<H2><A NAME="E">E. Missing functions, wrong types, etc</A></H2> - -<H4><A NAME="E.1">E.1: Where is <CODE>pthread_yield()</CODE> ? How -comes LinuxThreads does not implement it?</A></H4> - -Because it's not part of the (final) POSIX 1003.1c standard. -Several drafts of the standard contained <CODE>pthread_yield()</CODE>, -but then the POSIX guys discovered it was redundant with -<CODE>sched_yield()</CODE> and dropped it. So, just use -<CODE>sched_yield()</CODE> instead. - -<H4><A NAME="E.2">E.2: I've found some type errors in -<code><pthread.h></code>. -For instance, the second argument to <CODE>pthread_create()</CODE> -should be a <CODE>pthread_attr_t</CODE>, not a -<CODE>pthread_attr_t *</CODE>. Also, didn't you forget to declare -<CODE>pthread_attr_default</CODE>?</A></H4> - -No, I didn't. What you're describing is draft 4 of the POSIX -standard, which is used in OSF DCE threads. LinuxThreads conforms to the -final standard. Even though the functions have the same names as in -draft 4 and DCE, their calling conventions are slightly different. In -particular, attributes are passed by reference, not by value, and -default attributes are denoted by the NULL pointer. Since draft 4/DCE -will eventually disappear, you'd better port your program to use the -standard interface.<P> - -<H4><A NAME="E.3">E.3: I'm porting an application from Solaris and I -have to rename all thread functions from <code>thr_blah</code> to -<CODE>pthread_blah</CODE>. This is very annoying. Why did you change -all the function names?</A></H4> - -POSIX did it. The <code>thr_*</code> functions correspond to Solaris -threads, an older thread interface that you'll find only under -Solaris. The <CODE>pthread_*</CODE> functions correspond to POSIX -threads, an international standard available for many, many platforms. -Even Solaris 2.5 and later support the POSIX threads interface. So, -do yourself a favor and rewrite your code to use POSIX threads: this -way, it will run unchanged under Linux, Solaris, and quite a lot of -other platforms.<P> - -<H4><A NAME="E.4">E.4: How can I suspend and resume a thread from -another thread? Solaris has the <CODE>thr_suspend()</CODE> and -<CODE>thr_resume()</CODE> functions to do that; why don't you?</A></H4> - -The POSIX standard provides <B>no</B> mechanism by which a thread A can -suspend the execution of another thread B, without cooperation from B. -The only way to implement a suspend/restart mechanism is to have B -check periodically some global variable for a suspend request -and then suspend itself on a condition variable, which another thread -can signal later to restart B.<P> - -Notice that <CODE>thr_suspend()</CODE> is inherently dangerous and -prone to race conditions. For one thing, there is no control on where -the target thread stops: it can very well be stopped in the middle of -a critical section, while holding mutexes. Also, there is no -guarantee on when the target thread will actually stop. For these -reasons, you'd be much better off using mutexes and conditions -instead. The only situations that really require the ability to -suspend a thread are debuggers and some kind of garbage collectors.<P> - -If you really must suspend a thread in LinuxThreads, you can send it a -<CODE>SIGSTOP</CODE> signal with <CODE>pthread_kill</CODE>. Send -<CODE>SIGCONT</CODE> for restarting it. -Beware, this is specific to LinuxThreads and entirely non-portable. -Indeed, a truly conforming POSIX threads implementation will stop all -threads when one thread receives the <CODE>SIGSTOP</CODE> signal! -One day, LinuxThreads will implement that behavior, and the -non-portable hack with <CODE>SIGSTOP</CODE> won't work anymore.<P> - -<H4><A NAME="E.5">E.5: Does LinuxThreads implement -<CODE>pthread_attr_setstacksize()</CODE> and -<CODE>pthread_attr_setstackaddr()</CODE>?</A></H4> - -These optional functions are provided in recent versions of -LinuxThreads (0.8 and up). Earlier releases did not provide these -optional components of the POSIX standard.<P> - -Even if <CODE>pthread_attr_setstacksize()</CODE> and -<CODE>pthread_attr_setstackaddr()</CODE> are now provided, we still -recommend that you do not use them unless you really have strong -reasons for doing so. The default stack allocation strategy for -LinuxThreads is nearly optimal: stacks start small (4k) and -automatically grow on demand to a fairly large limit (2M). -Moreover, there is no portable way to estimate the stack requirements -of a thread, so setting the stack size yourself makes your program -less reliable and non-portable.<P> - -<H4><A NAME="E.6">E.6: LinuxThreads does not support the -<CODE>PTHREAD_SCOPE_PROCESS</CODE> value of the "contentionscope" -attribute. Why? </A></H4> - -With a "one-to-one" model, as in LinuxThreads (one kernel execution -context per thread), there is only one scheduler for all processes and -all threads on the system. So, there is no way to obtain the behavior of -<CODE>PTHREAD_SCOPE_PROCESS</CODE>. - -<H4><A NAME="E.7">E.7: LinuxThreads does not implement process-shared -mutexes, conditions, and semaphores. Why?</A></H4> - -This is another optional component of the POSIX standard. Portable -applications should test <CODE>_POSIX_THREAD_PROCESS_SHARED</CODE> -before using this facility. -<P> -The goal of this extension is to allow different processes (with -different address spaces) to synchronize through mutexes, conditions -or semaphores allocated in shared memory (either SVR4 shared memory -segments or <CODE>mmap()</CODE>ed files). -<P> -The reason why this does not work in LinuxThreads is that mutexes, -conditions, and semaphores are not self-contained: their waiting -queues contain pointers to linked lists of thread descriptors, and -these pointers are meaningful only in one address space. -<P> -Matt Messier and I spent a significant amount of time trying to design a -suitable mechanism for sharing waiting queues between processes. We -came up with several solutions that combined two of the following -three desirable features, but none that combines all three: -<UL> -<LI>allow sharing between processes having different UIDs -<LI>supports cancellation -<LI>supports <CODE>pthread_cond_timedwait</CODE> -</UL> -We concluded that kernel support is required to share mutexes, -conditions and semaphores between processes. That's one place where -Linus Torvalds's intuition that "all we need in the kernel is -<CODE>clone()</CODE>" fails. -<P> -Until suitable kernel support is available, you'd better use -traditional interprocess communications to synchronize different -processes: System V semaphores and message queues, or pipes, or sockets. -<P> - -<HR> -<P> - -<H2><A NAME="F">F. C++ issues</A></H2> - -<H4><A NAME="F.1">F.1: Are there C++ wrappers for LinuxThreads?</A></H4> - -Douglas Schmidt's ACE library contains, among a lot of other -things, C++ wrappers for LinuxThreads and quite a number of other -thread libraries. Check out -<A HREF="http://www.cs.wustl.edu/~schmidt/ACE.html">http://www.cs.wustl.edu/~schmidt/ACE.html</A><P> - -<H4><A NAME="F.2">F.2: I'm trying to use LinuxThreads from a C++ -program, and the compiler complains about the third argument to -<CODE>pthread_create()</CODE> !</A></H4> - -You're probably trying to pass a class member function or some -other C++ thing as third argument to <CODE>pthread_create()</CODE>. -Recall that <CODE>pthread_create()</CODE> is a C function, and it must -be passed a C function as third argument.<P> - -<H4><A NAME="F.3">F.3: I'm trying to use LinuxThreads in conjunction -with libg++, and I'm having all sorts of trouble.</A></H4> - ->From what I understand, thread support in libg++ is completely broken, -especially with respect to locking of iostreams. H.J.Lu wrote: -<BLOCKQUOTE> -If you want to use thread, I can only suggest egcs and glibc. You -can find egcs at -<A HREF="http://www.cygnus.com/egcs">http://www.cygnus.com/egcs</A>. -egcs has libsdtc++, which is MT safe under glibc 2. If you really -want to use the libg++, I have a libg++ add-on for egcs. -</BLOCKQUOTE> -<HR> -<P> - -<H2><A NAME="G">G. Debugging LinuxThreads programs</A></H2> - -<H4><A NAME="G.1">G.1: Can I debug LinuxThreads program using gdb?</A></H4> - -Yes, but not with the stock gdb 4.17. You need a specially patched -version of gdb 4.17 developed by Eric Paire and colleages at The Open -Group, Grenoble. The patches against gdb 4.17 are available at -<A HREF="http://www.gr.opengroup.org/java/jdk/linux/debug.htm"><code>http://www.gr.opengroup.org/java/jdk/linux/debug.htm</code></A>. -Precompiled binaries of the patched gdb are available in RedHat's RPM -format at <A -HREF="http://odin.appliedtheory.com/"><code>http://odin.appliedtheory.com/</code></A>.<P> - -Some Linux distributions provide an already-patched version of gdb; -others don't. For instance, the gdb in RedHat 5.2 is thread-aware, -but apparently not the one in RedHat 6.0. Just ask (politely) the -makers of your Linux distributions to please make sure that they apply -the correct patches to gdb.<P> - -<H4><A NAME="G.2">G.2: Does it work with post-mortem debugging?</A></H4> - -Not very well. Generally, the core file does not correspond to the -thread that crashed. The reason is that the kernel will not dump core -for a process that shares its memory with other processes, such as the -other threads of your program. So, the thread that crashes silently -disappears without generating a core file. Then, all other threads of -your program die on the same signal that killed the crashing thread. -(This is required behavior according to the POSIX standard.) The last -one that dies is no longer sharing its memory with anyone else, so the -kernel generates a core file for that thread. Unfortunately, that's -not the thread you are interested in. - -<H4><A NAME="G.3">G.3: Any other ways to debug multithreaded programs, then?</A></H4> - -Assertions and <CODE>printf()</CODE> are your best friends. Try to debug -sequential parts in a single-threaded program first. Then, put -<CODE>printf()</CODE> statements all over the place to get execution traces. -Also, check invariants often with the <CODE>assert()</CODE> macro. In truth, -there is no other effective way (save for a full formal proof of your -program) to track down concurrency bugs. Debuggers are not really -effective for subtle concurrency problems, because they disrupt -program execution too much.<P> - -<HR> -<P> - -<H2><A NAME="H">H. Compiling multithreaded code; errno madness</A></H2> - -<H4><A NAME="H.1">H.1: You say all multithreaded code must be compiled -with <CODE>_REENTRANT</CODE> defined. What difference does it make?</A></H4> - -It affects include files in three ways: -<UL> -<LI> The include files define prototypes for the reentrant variants of -some of the standard library functions, -e.g. <CODE>gethostbyname_r()</CODE> as a reentrant equivalent to -<CODE>gethostbyname()</CODE>.<P> - -<LI> If <CODE>_REENTRANT</CODE> is defined, some -<code><stdio.h></code> functions are no longer defined as macros, -e.g. <CODE>getc()</CODE> and <CODE>putc()</CODE>. In a multithreaded -program, stdio functions require additional locking, which the macros -don't perform, so we must call functions instead.<P> - -<LI> More importantly, <code><errno.h></code> redefines errno when -<CODE>_REENTRANT</CODE> is -defined, so that errno refers to the thread-specific errno location -rather than the global errno variable. This is achieved by the -following <code>#define</code> in <code><errno.h></code>: -<PRE> - #define errno (*(__errno_location())) -</PRE> -which causes each reference to errno to call the -<CODE>__errno_location()</CODE> function for obtaining the location -where error codes are stored. libc provides a default definition of -<CODE>__errno_location()</CODE> that always returns -<code>&errno</code> (the address of the global errno variable). Thus, -for programs not linked with LinuxThreads, defining -<CODE>_REENTRANT</CODE> makes no difference w.r.t. errno processing. -But LinuxThreads redefines <CODE>__errno_location()</CODE> to return a -location in the thread descriptor reserved for holding the current -value of errno for the calling thread. Thus, each thread operates on -a different errno location. -</UL> -<P> - -<H4><A NAME="H.2">H.2: Why is it so important that each thread has its -own errno variable? </A></H4> - -If all threads were to store error codes in the same, global errno -variable, then the value of errno after a system call or library -function returns would be unpredictable: between the time a system -call stores its error code in the global errno and your code inspects -errno to see which error occurred, another thread might have stored -another error code in the same errno location. <P> - -<H4><A NAME="H.3">H.3: What happens if I link LinuxThreads with code -not compiled with <CODE>-D_REENTRANT</CODE>?</A></H4> - -Lots of trouble. If the code uses <CODE>getc()</CODE> or -<CODE>putc()</CODE>, it will perform I/O without proper interlocking -of the stdio buffers; this can cause lost output, duplicate output, or -just crash other stdio functions. If the code consults errno, it will -get back the wrong error code. The following code fragment is a -typical example: -<PRE> - do { - r = read(fd, buf, n); - if (r == -1) { - if (errno == EINTR) /* an error we can handle */ - continue; - else { /* other errors are fatal */ - perror("read failed"); - exit(100); - } - } - } while (...); -</PRE> -Assume this code is not compiled with <CODE>-D_REENTRANT</CODE>, and -linked with LinuxThreads. At run-time, <CODE>read()</CODE> is -interrupted. Since the C library was compiled with -<CODE>-D_REENTRANT</CODE>, <CODE>read()</CODE> stores its error code -in the location pointed to by <CODE>__errno_location()</CODE>, which -is the thread-local errno variable. Then, the code above sees that -<CODE>read()</CODE> returns -1 and looks up errno. Since -<CODE>_REENTRANT</CODE> is not defined, the reference to errno -accesses the global errno variable, which is most likely 0. Hence the -code concludes that it cannot handle the error and stops.<P> - -<H4><A NAME="H.4">H.4: With LinuxThreads, I can no longer use the signals -<code>SIGUSR1</code> and <code>SIGUSR2</code> in my programs! Why? </A></H4> - -The short answer is: because the Linux kernel you're using does not -support realtime signals. <P> - -LinuxThreads needs two signals for its internal operation. -One is used to suspend and restart threads blocked on mutex, condition -or semaphore operations. The other is used for thread -cancellation.<P> - -On ``old'' kernels (2.0 and early 2.1 kernels), there are only 32 -signals available and the kernel reserves all of them but two: -<code>SIGUSR1</code> and <code>SIGUSR2</code>. So, LinuxThreads has -no choice but use those two signals.<P> - -On recent kernels (2.2 and up), more than 32 signals are provided in -the form of realtime signals. When run on one of those kernels, -LinuxThreads uses two reserved realtime signals for its internal -operation, thus leaving <code>SIGUSR1</code> and <code>SIGUSR2</code> -free for user code. (This works only with glibc, not with libc 5.) <P> - -<H4><A NAME="H.5">H.5: Is the stack of one thread visible from the -other threads? Can I pass a pointer into my stack to other threads? -</A></H4> - -Yes, you can -- if you're very careful. The stacks are indeed visible -from all threads in the system. Some non-POSIX thread libraries seem -to map the stacks for all threads at the same virtual addresses and -change the memory mapping when they switch from one thread to -another. But this is not the case for LinuxThreads, as it would make -context switching between threads more expensive, and at any rate -might not conform to the POSIX standard.<P> - -So, you can take the address of an "auto" variable and pass it to -other threads via shared data structures. However, you need to make -absolutely sure that the function doing this will not return as long -as other threads need to access this address. It's the usual mistake -of returning the address of an "auto" variable, only made much worse -because of concurrency. It's much, much safer to systematically -heap-allocate all shared data structures. <P> - -<HR> -<P> - -<H2><A NAME="I">I. X-Windows and other libraries</A></H2> - -<H4><A NAME="I.1">I.1: My program uses both Xlib and LinuxThreads. -It stops very early with an "Xlib: unknown 0 error" message. What -does this mean? </A></H4> - -That's a prime example of the errno problem described in question <A -HREF="#H.2">H.2</A>. The binaries for Xlib you're using have not been -compiled with <CODE>-D_REENTRANT</CODE>. It happens Xlib contains a -piece of code very much like the one in question <A -HREF="#H.2">H.2</A>. So, your Xlib fetches the error code from the -wrong errno location and concludes that an error it cannot handle -occurred.<P> - -<H4><A NAME="I.2">I.2: So, what can I do to build a multithreaded X -Windows client? </A></H4> - -The best solution is to use X libraries that have been compiled with -multithreading options set. Linux distributions that come with glibc -2 as the main C library generally provide thread-safe X libraries. -At least, that seems to be the case for RedHat 5 and later.<P> - -You can try to recompile yourself the X libraries with multithreading -options set. They contain optional support for multithreading; it's -just that the binaries provided by your Linux distribution were built -without this support. See the file <code>README.Xfree3.3</code> in -the LinuxThreads distribution for patches and info on how to compile -thread-safe X libraries from the Xfree3.3 distribution. The Xfree3.3 -sources are readily available in most Linux distributions, e.g. as a -source RPM for RedHat. Be warned, however, that X Windows is a huge -system, and recompiling even just the libraries takes a lot of time -and disk space.<P> - -Another, less involving solution is to call X functions only from the -main thread of your program. Even if all threads have their own errno -location, the main thread uses the global errno variable for its errno -location. Thus, code not compiled with <code>-D_REENTRANT</code> -still "sees" the right error values if it executes in the main thread -only. <P> - -<H4><A NAME="I.2">This is a lot of work. Don't you have precompiled -thread-safe X libraries that you could distribute?</A></H4> - -No, I don't. Sorry. But consider installing a Linux distribution -that comes with thread-safe X libraries, such as RedHat 6.<P> - -<H4><A NAME="I.3">I.3: Can I use library FOO in a multithreaded -program?</A></H4> - -Most libraries cannot be used "as is" in a multithreaded program. -For one thing, they are not necessarily thread-safe: calling -simultaneously two functions of the library from two threads might not -work, due to internal use of global variables and the like. Second, -the libraries must have been compiled with <CODE>-D_REENTRANT</CODE> to avoid -the errno problems explained in question <A HREF="#H.2">H.2</A>. -<P> - -<H4><A NAME="I.4">I.4: What if I make sure that only one thread calls -functions in these libraries?</A></H4> - -This avoids problems with the library not being thread-safe. But -you're still vulnerable to errno problems. At the very least, a -recompile of the library with <CODE>-D_REENTRANT</CODE> is needed. -<P> - -<H4><A NAME="I.5">I.5: What if I make sure that only the main thread -calls functions in these libraries?</A></H4> - -That might actually work. As explained in question <A HREF="#I.1">I.1</A>, -the main thread uses the global errno variable, and can therefore -execute code not compiled with <CODE>-D_REENTRANT</CODE>.<P> - -<H4><A NAME="I.6">I.6: SVGAlib doesn't work with LinuxThreads. Why? -</A></H4> - -Because both LinuxThreads and SVGAlib use the signals -<code>SIGUSR1</code> and <code>SIGUSR2</code>. See question <A -HREF="#H.4">H.4</A>. -<P> - - -<HR> -<P> - -<H2><A NAME="J">J. Signals and threads</A></H2> - -<H4><A NAME="J.1">J.1: When it comes to signals, what is shared -between threads and what isn't?</A></H4> - -Signal handlers are shared between all threads: when a thread calls -<CODE>sigaction()</CODE>, it sets how the signal is handled not only -for itself, but for all other threads in the program as well.<P> - -On the other hand, signal masks are per-thread: each thread chooses -which signals it blocks independently of others. At thread creation -time, the newly created thread inherits the signal mask of the thread -calling <CODE>pthread_create()</CODE>. But afterwards, the new thread -can modify its signal mask independently of its creator thread.<P> - -<H4><A NAME="J.2">J.2: When I send a <CODE>SIGKILL</CODE> to a -particular thread using <CODE>pthread_kill</CODE>, all my threads are -killed!</A></H4> - -That's how it should be. The POSIX standard mandates that all threads -should terminate when the process (i.e. the collection of all threads -running the program) receives a signal whose effect is to -terminate the process (such as <CODE>SIGKILL</CODE> or <CODE>SIGINT</CODE> -when no handler is installed on that signal). This behavior makes a -lot of sense: when you type "ctrl-C" at the keyboard, or when a thread -crashes on a division by zero or a segmentation fault, you really want -all threads to stop immediately, not just the one that caused the -segmentation violation or that got the <CODE>SIGINT</CODE> signal. -(This assumes default behavior for those signals; see question -<A HREF="#J.3">J.3</A> if you install handlers for those signals.)<P> - -If you're trying to terminate a thread without bringing the whole -process down, use <code>pthread_cancel()</code>.<P> - -<H4><A NAME="J.3">J.3: I've installed a handler on a signal. Which -thread executes the handler when the signal is received?</A></H4> - -If the signal is generated by a thread during its execution (e.g. a -thread executes a division by zero and thus generates a -<CODE>SIGFPE</CODE> signal), then the handler is executed by that -thread. This also applies to signals generated by -<CODE>raise()</CODE>.<P> - -If the signal is sent to a particular thread using -<CODE>pthread_kill()</CODE>, then that thread executes the handler.<P> - -If the signal is sent via <CODE>kill()</CODE> or the tty interface -(e.g. by pressing ctrl-C), then the POSIX specs say that the handler -is executed by any thread in the process that does not currently block -the signal. In other terms, POSIX considers that the signal is sent -to the process (the collection of all threads) as a whole, and any -thread that is not blocking this signal can then handle it.<P> - -The latter case is where LinuxThreads departs from the POSIX specs. -In LinuxThreads, there is no real notion of ``the process as a whole'': -in the kernel, each thread is really a distinct process with a -distinct PID, and signals sent to the PID of a thread can only be -handled by that thread. As long as no thread is blocking the signal, -the behavior conforms to the standard: one (unspecified) thread of the -program handles the signal. But if the thread to which PID the signal -is sent blocks the signal, and some other thread does not block the -signal, then LinuxThreads will simply queue in -that thread and execute the handler only when that thread unblocks -the signal, instead of executing the handler immediately in the other -thread that does not block the signal.<P> - -This is to be viewed as a LinuxThreads bug, but I currently don't see -any way to implement the POSIX behavior without kernel support.<P> - -<H4><A NAME="J.3">J.3: How shall I go about mixing signals and threads -in my program? </A></H4> - -The less you mix them, the better. Notice that all -<CODE>pthread_*</CODE> functions are not async-signal safe, meaning -that you should not call them from signal handlers. This -recommendation is not to be taken lightly: your program can deadlock -if you call a <CODE>pthread_*</CODE> function from a signal handler! -<P> - -The only sensible things you can do from a signal handler is set a -global flag, or call <CODE>sem_post</CODE> on a semaphore, to record -the delivery of the signal. The remainder of the program can then -either poll the global flag, or use <CODE>sem_wait()</CODE> and -<CODE>sem_trywait()</CODE> on the semaphore.<P> - -Another option is to do nothing in the signal handler, and dedicate -one thread (preferably the initial thread) to wait synchronously for -signals, using <CODE>sigwait()</CODE>, and send messages to the other -threads accordingly. - -<H4><A NAME="J.4">J.4: When one thread is blocked in -<CODE>sigwait()</CODE>, other threads no longer receive the signals -<CODE>sigwait()</CODE> is waiting for! What happens? </A></H4> - -It's an unfortunate consequence of how LinuxThreads implements -<CODE>sigwait()</CODE>. Basically, it installs signal handlers on all -signals waited for, in order to record which signal was received. -Since signal handlers are shared with the other threads, this -temporarily deactivates any signal handlers you might have previously -installed on these signals.<P> - -Though surprising, this behavior actually seems to conform to the -POSIX standard. According to POSIX, <CODE>sigwait()</CODE> is -guaranteed to work as expected only if all other threads in the -program block the signals waited for (otherwise, the signals could be -delivered to other threads than the one doing <CODE>sigwait()</CODE>, -which would make <CODE>sigwait()</CODE> useless). In this particular -case, the problem described in this question does not appear.<P> - -One day, <CODE>sigwait()</CODE> will be implemented in the kernel, -along with others POSIX 1003.1b extensions, and <CODE>sigwait()</CODE> -will have a more natural behavior (as well as better performances).<P> - -<HR> -<P> - -<H2><A NAME="K">K. Internals of LinuxThreads</A></H2> - -<H4><A NAME="K.1">K.1: What is the implementation model for -LinuxThreads?</A></H4> - -LinuxThreads follows the so-called "one-to-one" model: each thread is -actually a separate process in the kernel. The kernel scheduler takes -care of scheduling the threads, just like it schedules regular -processes. The threads are created with the Linux -<code>clone()</code> system call, which is a generalization of -<code>fork()</code> allowing the new process to share the memory -space, file descriptors, and signal handlers of the parent.<P> - -Advantages of the "one-to-one" model include: -<UL> -<LI> minimal overhead on CPU-intensive multiprocessing (with -about one thread per processor); -<LI> minimal overhead on I/O operations; -<LI> a simple and robust implementation (the kernel scheduler does -most of the hard work for us). -</UL> -The main disadvantage is more expensive context switches on mutex and -condition operations, which must go through the kernel. This is -mitigated by the fact that context switches in the Linux kernel are -pretty efficient.<P> - -<H4><A NAME="K.2">K.2: Have you considered other implementation -models?</A></H4> - -There are basically two other models. The "many-to-one" model -relies on a user-level scheduler that context-switches between the -threads entirely in user code; viewed from the kernel, there is only -one process running. This model is completely out of the question for -me, since it does not take advantage of multiprocessors, and require -unholy magic to handle blocking I/O operations properly. There are -several user-level thread libraries available for Linux, but I found -all of them deficient in functionality, performance, and/or robustness. -<P> - -The "many-to-many" model combines both kernel-level and user-level -scheduling: several kernel-level threads run concurrently, each -executing a user-level scheduler that selects between user threads. -Most commercial Unix systems (Solaris, Digital Unix, IRIX) implement -POSIX threads this way. This model combines the advantages of both -the "many-to-one" and the "one-to-one" model, and is attractive -because it avoids the worst-case behaviors of both models -- -especially on kernels where context switches are expensive, such as -Digital Unix. Unfortunately, it is pretty complex to implement, and -requires kernel support which Linux does not provide. Linus Torvalds -and other Linux kernel developers have always been pushing the -"one-to-one" model in the name of overall simplicity, and are doing a -pretty good job of making kernel-level context switches between -threads efficient. LinuxThreads is just following the general -direction they set.<P> - -<HR> -<ADDRESS>Xavier.Leroy@inria.fr</ADDRESS> -</BODY> -</HTML> diff --git a/linuxthreads/LICENSE b/linuxthreads/LICENSE deleted file mode 100644 index 7bcca60504..0000000000 --- a/linuxthreads/LICENSE +++ /dev/null @@ -1,501 +0,0 @@ -GNU LIBRARY GENERAL PUBLIC LICENSE -********************************** - - Version 2, June 1991 - - Copyright (C) 1991 Free Software Foundation, Inc. - 59 Temple Place -- Suite 330, Boston, MA 02111-1307, USA - - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - [This is the first released version of the library GPL. It is - numbered 2 because it goes with version 2 of the ordinary GPL.] - -Preamble -======== - - The licenses for most software are designed to take away your -freedom to share and change it. By contrast, the GNU General Public -Licenses are intended to guarantee your freedom to share and change -free software--to make sure the software is free for all its users. - - This license, the Library General Public License, applies to some -specially designated Free Software Foundation software, and to any -other libraries whose authors decide to use it. You can use it for -your libraries, too. - - When we speak of free software, we are referring to freedom, not -price. Our General Public Licenses are designed to make sure that you -have the freedom to distribute copies of free software (and charge for -this service if you wish), that you receive source code or can get it -if you want it, that you can change the software or use pieces of it in -new free programs; and that you know you can do these things. - - To protect your rights, we need to make restrictions that forbid -anyone to deny you these rights or to ask you to surrender the rights. -These restrictions translate to certain responsibilities for you if you -distribute copies of the library, or if you modify it. - - For example, if you distribute copies of the library, whether gratis -or for a fee, you must give the recipients all the rights that we gave -you. You must make sure that they, too, receive or can get the source -code. If you link a program with the library, you must provide -complete object files to the recipients so that they can relink them -with the library, after making changes to the library and recompiling -it. And you must show them these terms so they know their rights. - - Our method of protecting your rights has two steps: (1) copyright -the library, and (2) offer you this license which gives you legal -permission to copy, distribute and/or modify the library. - - Also, for each distributor's protection, we want to make certain -that everyone understands that there is no warranty for this free -library. If the library is modified by someone else and passed on, we -want its recipients to know that what they have is not the original -version, so that any problems introduced by others will not reflect on -the original authors' reputations. - - Finally, any free program is threatened constantly by software -patents. We wish to avoid the danger that companies distributing free -software will individually obtain patent licenses, thus in effect -transforming the program into proprietary software. To prevent this, -we have made it clear that any patent must be licensed for everyone's -free use or not licensed at all. - - Most GNU software, including some libraries, is covered by the -ordinary GNU General Public License, which was designed for utility -programs. This license, the GNU Library General Public License, -applies to certain designated libraries. This license is quite -different from the ordinary one; be sure to read it in full, and don't -assume that anything in it is the same as in the ordinary license. - - The reason we have a separate public license for some libraries is -that they blur the distinction we usually make between modifying or -adding to a program and simply using it. Linking a program with a -library, without changing the library, is in some sense simply using -the library, and is analogous to running a utility program or -application program. However, in a textual and legal sense, the linked -executable is a combined work, a derivative of the original library, -and the ordinary General Public License treats it as such. - - Because of this blurred distinction, using the ordinary General -Public License for libraries did not effectively promote software -sharing, because most developers did not use the libraries. We -concluded that weaker conditions might promote sharing better. - - However, unrestricted linking of non-free programs would deprive the -users of those programs of all benefit from the free status of the -libraries themselves. This Library General Public License is intended -to permit developers of non-free programs to use free libraries, while -preserving your freedom as a user of such programs to change the free -libraries that are incorporated in them. (We have not seen how to -achieve this as regards changes in header files, but we have achieved -it as regards changes in the actual functions of the Library.) The -hope is that this will lead to faster development of free libraries. - - The precise terms and conditions for copying, distribution and -modification follow. Pay close attention to the difference between a -"work based on the library" and a "work that uses the library". The -former contains code derived from the library, while the latter only -works together with the library. - - Note that it is possible for a library to be covered by the ordinary -General Public License rather than by this special one. - - TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION - - 0. This License Agreement applies to any software library which - contains a notice placed by the copyright holder or other - authorized party saying it may be distributed under the terms of - this Library General Public License (also called "this License"). - Each licensee is addressed as "you". - - A "library" means a collection of software functions and/or data - prepared so as to be conveniently linked with application programs - (which use some of those functions and data) to form executables. - - The "Library", below, refers to any such software library or work - which has been distributed under these terms. A "work based on the - Library" means either the Library or any derivative work under - copyright law: that is to say, a work containing the Library or a - portion of it, either verbatim or with modifications and/or - translated straightforwardly into another language. (Hereinafter, - translation is included without limitation in the term - "modification".) - - "Source code" for a work means the preferred form of the work for - making modifications to it. For a library, complete source code - means all the source code for all modules it contains, plus any - associated interface definition files, plus the scripts used to - control compilation and installation of the library. - - Activities other than copying, distribution and modification are - not covered by this License; they are outside its scope. The act - of running a program using the Library is not restricted, and - output from such a program is covered only if its contents - constitute a work based on the Library (independent of the use of - the Library in a tool for writing it). Whether that is true - depends on what the Library does and what the program that uses - the Library does. - - 1. You may copy and distribute verbatim copies of the Library's - complete source code as you receive it, in any medium, provided - that you conspicuously and appropriately publish on each copy an - appropriate copyright notice and disclaimer of warranty; keep - intact all the notices that refer to this License and to the - absence of any warranty; and distribute a copy of this License - along with the Library. - - You may charge a fee for the physical act of transferring a copy, - and you may at your option offer warranty protection in exchange - for a fee. - - 2. You may modify your copy or copies of the Library or any portion - of it, thus forming a work based on the Library, and copy and - distribute such modifications or work under the terms of Section 1 - above, provided that you also meet all of these conditions: - - a. The modified work must itself be a software library. - - b. You must cause the files modified to carry prominent notices - stating that you changed the files and the date of any change. - - c. You must cause the whole of the work to be licensed at no - charge to all third parties under the terms of this License. - - d. If a facility in the modified Library refers to a function or - a table of data to be supplied by an application program that - uses the facility, other than as an argument passed when the - facility is invoked, then you must make a good faith effort - to ensure that, in the event an application does not supply - such function or table, the facility still operates, and - performs whatever part of its purpose remains meaningful. - - (For example, a function in a library to compute square roots - has a purpose that is entirely well-defined independent of the - application. Therefore, Subsection 2d requires that any - application-supplied function or table used by this function - must be optional: if the application does not supply it, the - square root function must still compute square roots.) - - These requirements apply to the modified work as a whole. If - identifiable sections of that work are not derived from the - Library, and can be reasonably considered independent and separate - works in themselves, then this License, and its terms, do not - apply to those sections when you distribute them as separate - works. But when you distribute the same sections as part of a - whole which is a work based on the Library, the distribution of - the whole must be on the terms of this License, whose permissions - for other licensees extend to the entire whole, and thus to each - and every part regardless of who wrote it. - - Thus, it is not the intent of this section to claim rights or - contest your rights to work written entirely by you; rather, the - intent is to exercise the right to control the distribution of - derivative or collective works based on the Library. - - In addition, mere aggregation of another work not based on the - Library with the Library (or with a work based on the Library) on - a volume of a storage or distribution medium does not bring the - other work under the scope of this License. - - 3. You may opt to apply the terms of the ordinary GNU General Public - License instead of this License to a given copy of the Library. - To do this, you must alter all the notices that refer to this - License, so that they refer to the ordinary GNU General Public - License, version 2, instead of to this License. (If a newer - version than version 2 of the ordinary GNU General Public License - has appeared, then you can specify that version instead if you - wish.) Do not make any other change in these notices. - - Once this change is made in a given copy, it is irreversible for - that copy, so the ordinary GNU General Public License applies to - all subsequent copies and derivative works made from that copy. - - This option is useful when you wish to copy part of the code of - the Library into a program that is not a library. - - 4. You may copy and distribute the Library (or a portion or - derivative of it, under Section 2) in object code or executable - form under the terms of Sections 1 and 2 above provided that you - accompany it with the complete corresponding machine-readable - source code, which must be distributed under the terms of Sections - 1 and 2 above on a medium customarily used for software - interchange. - - If distribution of object code is made by offering access to copy - from a designated place, then offering equivalent access to copy - the source code from the same place satisfies the requirement to - distribute the source code, even though third parties are not - compelled to copy the source along with the object code. - - 5. A program that contains no derivative of any portion of the - Library, but is designed to work with the Library by being - compiled or linked with it, is called a "work that uses the - Library". Such a work, in isolation, is not a derivative work of - the Library, and therefore falls outside the scope of this License. - - However, linking a "work that uses the Library" with the Library - creates an executable that is a derivative of the Library (because - it contains portions of the Library), rather than a "work that - uses the library". The executable is therefore covered by this - License. Section 6 states terms for distribution of such - executables. - - When a "work that uses the Library" uses material from a header - file that is part of the Library, the object code for the work may - be a derivative work of the Library even though the source code is - not. Whether this is true is especially significant if the work - can be linked without the Library, or if the work is itself a - library. The threshold for this to be true is not precisely - defined by law. - - If such an object file uses only numerical parameters, data - structure layouts and accessors, and small macros and small inline - functions (ten lines or less in length), then the use of the object - file is unrestricted, regardless of whether it is legally a - derivative work. (Executables containing this object code plus - portions of the Library will still fall under Section 6.) - - Otherwise, if the work is a derivative of the Library, you may - distribute the object code for the work under the terms of Section - 6. Any executables containing that work also fall under Section 6, - whether or not they are linked directly with the Library itself. - - 6. As an exception to the Sections above, you may also compile or - link a "work that uses the Library" with the Library to produce a - work containing portions of the Library, and distribute that work - under terms of your choice, provided that the terms permit - modification of the work for the customer's own use and reverse - engineering for debugging such modifications. - - You must give prominent notice with each copy of the work that the - Library is used in it and that the Library and its use are covered - by this License. You must supply a copy of this License. If the - work during execution displays copyright notices, you must include - the copyright notice for the Library among them, as well as a - reference directing the user to the copy of this License. Also, - you must do one of these things: - - a. Accompany the work with the complete corresponding - machine-readable source code for the Library including - whatever changes were used in the work (which must be - distributed under Sections 1 and 2 above); and, if the work - is an executable linked with the Library, with the complete - machine-readable "work that uses the Library", as object code - and/or source code, so that the user can modify the Library - and then relink to produce a modified executable containing - the modified Library. (It is understood that the user who - changes the contents of definitions files in the Library will - not necessarily be able to recompile the application to use - the modified definitions.) - - b. Accompany the work with a written offer, valid for at least - three years, to give the same user the materials specified in - Subsection 6a, above, for a charge no more than the cost of - performing this distribution. - - c. If distribution of the work is made by offering access to copy - from a designated place, offer equivalent access to copy the - above specified materials from the same place. - - d. Verify that the user has already received a copy of these - materials or that you have already sent this user a copy. - - For an executable, the required form of the "work that uses the - Library" must include any data and utility programs needed for - reproducing the executable from it. However, as a special - exception, the source code distributed need not include anything - that is normally distributed (in either source or binary form) - with the major components (compiler, kernel, and so on) of the - operating system on which the executable runs, unless that - component itself accompanies the executable. - - It may happen that this requirement contradicts the license - restrictions of other proprietary libraries that do not normally - accompany the operating system. Such a contradiction means you - cannot use both them and the Library together in an executable - that you distribute. - - 7. You may place library facilities that are a work based on the - Library side-by-side in a single library together with other - library facilities not covered by this License, and distribute - such a combined library, provided that the separate distribution - of the work based on the Library and of the other library - facilities is otherwise permitted, and provided that you do these - two things: - - a. Accompany the combined library with a copy of the same work - based on the Library, uncombined with any other library - facilities. This must be distributed under the terms of the - Sections above. - - b. Give prominent notice with the combined library of the fact - that part of it is a work based on the Library, and explaining - where to find the accompanying uncombined form of the same - work. - - 8. You may not copy, modify, sublicense, link with, or distribute the - Library except as expressly provided under this License. Any - attempt otherwise to copy, modify, sublicense, link with, or - distribute the Library is void, and will automatically terminate - your rights under this License. However, parties who have - received copies, or rights, from you under this License will not - have their licenses terminated so long as such parties remain in - full compliance. - - 9. You are not required to accept this License, since you have not - signed it. However, nothing else grants you permission to modify - or distribute the Library or its derivative works. These actions - are prohibited by law if you do not accept this License. - Therefore, by modifying or distributing the Library (or any work - based on the Library), you indicate your acceptance of this - License to do so, and all its terms and conditions for copying, - distributing or modifying the Library or works based on it. - - 10. Each time you redistribute the Library (or any work based on the - Library), the recipient automatically receives a license from the - original licensor to copy, distribute, link with or modify the - Library subject to these terms and conditions. You may not impose - any further restrictions on the recipients' exercise of the rights - granted herein. You are not responsible for enforcing compliance - by third parties to this License. - - 11. If, as a consequence of a court judgment or allegation of patent - infringement or for any other reason (not limited to patent - issues), conditions are imposed on you (whether by court order, - agreement or otherwise) that contradict the conditions of this - License, they do not excuse you from the conditions of this - License. If you cannot distribute so as to satisfy simultaneously - your obligations under this License and any other pertinent - obligations, then as a consequence you may not distribute the - Library at all. For example, if a patent license would not permit - royalty-free redistribution of the Library by all those who - receive copies directly or indirectly through you, then the only - way you could satisfy both it and this License would be to refrain - entirely from distribution of the Library. - - If any portion of this section is held invalid or unenforceable - under any particular circumstance, the balance of the section is - intended to apply, and the section as a whole is intended to apply - in other circumstances. - - It is not the purpose of this section to induce you to infringe any - patents or other property right claims or to contest validity of - any such claims; this section has the sole purpose of protecting - the integrity of the free software distribution system which is - implemented by public license practices. Many people have made - generous contributions to the wide range of software distributed - through that system in reliance on consistent application of that - system; it is up to the author/donor to decide if he or she is - willing to distribute software through any other system and a - licensee cannot impose that choice. - - This section is intended to make thoroughly clear what is believed - to be a consequence of the rest of this License. - - 12. If the distribution and/or use of the Library is restricted in - certain countries either by patents or by copyrighted interfaces, - the original copyright holder who places the Library under this - License may add an explicit geographical distribution limitation - excluding those countries, so that distribution is permitted only - in or among countries not thus excluded. In such case, this - License incorporates the limitation as if written in the body of - this License. - - 13. The Free Software Foundation may publish revised and/or new - versions of the Library General Public License from time to time. - Such new versions will be similar in spirit to the present version, - but may differ in detail to address new problems or concerns. - - Each version is given a distinguishing version number. If the - Library specifies a version number of this License which applies - to it and "any later version", you have the option of following - the terms and conditions either of that version or of any later - version published by the Free Software Foundation. If the Library - does not specify a license version number, you may choose any - version ever published by the Free Software Foundation. - - 14. If you wish to incorporate parts of the Library into other free - programs whose distribution conditions are incompatible with these, - write to the author to ask for permission. For software which is - copyrighted by the Free Software Foundation, write to the Free - Software Foundation; we sometimes make exceptions for this. Our - decision will be guided by the two goals of preserving the free - status of all derivatives of our free software and of promoting - the sharing and reuse of software generally. - - NO WARRANTY - - 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO - WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE - LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT - HOLDERS AND/OR OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT - WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT - NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND - FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE - QUALITY AND PERFORMANCE OF THE LIBRARY IS WITH YOU. SHOULD THE - LIBRARY PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY - SERVICING, REPAIR OR CORRECTION. - - 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN - WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY - MODIFY AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE - LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, - INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR - INABILITY TO USE THE LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF - DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU - OR THIRD PARTIES OR A FAILURE OF THE LIBRARY TO OPERATE WITH ANY - OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN - ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. - - END OF TERMS AND CONDITIONS - -How to Apply These Terms to Your New Libraries -============================================== - - If you develop a new library, and you want it to be of the greatest -possible use to the public, we recommend making it free software that -everyone can redistribute and change. You can do so by permitting -redistribution under these terms (or, alternatively, under the terms of -the ordinary General Public License). - - To apply these terms, attach the following notices to the library. -It is safest to attach them to the start of each source file to most -effectively convey the exclusion of warranty; and each file should have -at least the "copyright" line and a pointer to where the full notice is -found. - - ONE LINE TO GIVE THE LIBRARY'S NAME AND AN IDEA OF WHAT IT DOES. - Copyright (C) YEAR NAME OF AUTHOR - - This library is free software; you can redistribute it and/or modify it - under the terms of the GNU Library General Public License as published - by the Free Software Foundation; either version 2 of the License, or (at - your option) any later version. - - This library is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, Inc., - 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. - - Also add information on how to contact you by electronic and paper -mail. - - You should also get your employer (if you work as a programmer) or -your school, if any, to sign a "copyright disclaimer" for the library, -if necessary. Here is a sample; alter the names: - - Yoyodyne, Inc., hereby disclaims all copyright interest in the library - `Frob' (a library for tweaking knobs) written by James Random Hacker. - - SIGNATURE OF TY COON, 1 April 1990 - Ty Coon, President of Vice - - That's all there is to it! - diff --git a/linuxthreads/Makeconfig b/linuxthreads/Makeconfig deleted file mode 100644 index 5470c22b97..0000000000 --- a/linuxthreads/Makeconfig +++ /dev/null @@ -1,11 +0,0 @@ -# Makeconfig fragment for linuxthreads add-on. -# This gets included at the end of the main glibc Makeconfig. - -have-thread-library = yes - -shared-thread-library = $(common-objpfx)linuxthreads/libpthread_nonshared.a \ - $(common-objpfx)linuxthreads/libpthread.so -static-thread-library = $(common-objpfx)linuxthreads/libpthread.a -bounded-thread-library = $(common-objpfx)linuxthreads/libpthread_b.a - -rpath-dirs += linuxthreads diff --git a/linuxthreads/Makefile b/linuxthreads/Makefile deleted file mode 100644 index 4dc890d57a..0000000000 --- a/linuxthreads/Makefile +++ /dev/null @@ -1,345 +0,0 @@ -# Copyright (C) 1996-2003, 2004, 2005 Free Software Foundation, Inc. -# This file is part of the GNU C Library. - -# The GNU C Library is free software; you can redistribute it and/or -# modify it under the terms of the GNU Lesser General Public -# License as published by the Free Software Foundation; either -# version 2.1 of the License, or (at your option) any later version. - -# The GNU C Library is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# Lesser General Public License for more details. - -# You should have received a copy of the GNU Lesser General Public -# License along with the GNU C Library; if not, write to the Free -# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA -# 02111-1307 USA. - -# -# Sub-makefile for linuxthreads portion of the library. -# -subdir := linuxthreads - -all: # Make this the default target; it will be defined in Rules. - -linuxthreads-version := $(shell sed -n 's/^.*$(subdir)-\([0-9.]*\).*$$/\1/p' \ - Banner) -libpthread-abi-frozen := GLIBC_2.3.2 - -headers := pthread.h semaphore.h -distribute := internals.h queue.h restart.h spinlock.h smp.h tst-signal.sh \ - tst-cancel-wrappers.sh libc-tsd.c - -routines := forward alloca_cutoff libc-cancellation libc_pthread_init -shared-only-routines = forward - -extra-libs := libpthread -extra-libs-others := $(extra-libs) -install-lib-ldscripts := libpthread.so - -libpthread-routines := attr cancel condvar join manager mutex ptfork \ - ptlongjmp pthread pt-sigsuspend signals specific errno \ - lockfile semaphore spinlock rwlock pt-machine \ - oldsemaphore events getcpuclockid pspinlock barrier \ - ptclock_gettime ptclock_settime sighandler \ - pthandles libc-tls-loc pt-allocrtsig \ - ptw-write ptw-read ptw-close ptw-fcntl ptw-accept \ - ptw-connect ptw-recv ptw-recvfrom ptw-recvmsg \ - ptw-send ptw-sendmsg ptw-sendto ptw-fsync ptw-lseek \ - ptw-lseek64 ptw-llseek ptw-msync ptw-nanosleep \ - ptw-open ptw-open64 ptw-pause ptw-pread ptw-pread64 \ - ptw-pwrite ptw-pwrite64 ptw-tcdrain ptw-wait \ - ptw-waitpid pt-system old_pthread_atfork pthread_atfork \ - ptcleanup -# pthread_setuid pthread_seteuid pthread_setreuid \ -# pthread_setresuid \ -# pthread_setgid pthread_setegid pthread_setregid \ -# pthread_setresgid - -# Don't generate deps for calls with no sources. See sysdeps/unix/Makefile. -omit-deps = $(unix-syscalls:%=ptw-%) - -libpthread-shared-only-routines = pt-allocrtsig -libpthread-static-only-routines = pthread_atfork - -linuxthreads-CPPFLAGS = -DIS_IN_linuxthreads=1 - -CFLAGS-pthread_atfork.c = -DNOT_IN_libc - -nodelete-yes = -Wl,--enable-new-dtags,-z,nodelete -initfirst-yes = -Wl,--enable-new-dtags,-z,initfirst -LDFLAGS-pthread.so = $(nodelete-$(have-z-nodelete)) \ - $(initfirst-$(have-z-initfirst)) - -vpath %.c Examples - -tst-cancel-ARGS = "$(objpfx)" -CFLAGS-tst-cancel.c = -fno-inline -fno-inline-functions - -include ../Makeconfig - -ifeq ($(build-shared),yes) - -# Set the `multidir' variable by grabbing the variable from the compiler. -# We do it once and save the result in a generated makefile. --include $(objpfx)multidir.mk -$(objpfx)multidir.mk: $(common-objpfx)config.make - $(make-target-directory) - dir=`$(CC) $(CFLAGS) $(CPPFLAGS) -print-multi-directory`; \ - echo "multidir := $$dir" > $@T - mv -f $@T $@ -generated += multidir.mk - -crti-objs := crti.o -crtn-objs := crtn.o -ifneq (,$(patsubst .,,$(multidir))) -generated-dirs := $(firstword $(subst /, , $(multidir))) -crti-objs += $(multidir)/crti.o -crtn-objs += $(multidir)/crtn.o -omit-deps += $(multidir)/crti $(multidir)/crtn -endif -extra-objs += $(crti-objs) $(crtn-objs) -omit-deps += crti crtn - -CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time) -endif - -librt-tests = ex10 ex11 tst-clock1 -tests = ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 $(librt-tests) ex12 ex13 joinrace \ - tststack $(tests-nodelete-$(have-z-nodelete)) ecmutex ex14 ex15 ex16 \ - ex17 ex18 tst-cancel tst-context bug-sleep \ - tst-cancel1 tst-cancel2 tst-cancel3 tst-cancel4 tst-cancel5 \ - tst-cancel6 tst-cancel7 tst-cancel8 tst-popen tst-popen2 tst-attr1 \ - tst-stack1 tst-align tst-tsd1 -test-srcs = tst-signal -# These tests are linked with libc before libpthread -tests-reverse += tst-cancel5 - -ifeq ($(build-static),yes) -tests += tststatic tst-static-locale tst-cancel-static -tests-static += tststatic tst-static-locale tst-cancel-static -endif - -ifeq (yes,$(build-shared)) -tests-nodelete-yes = unload -tests += tst-tls1 tst-_res1 -endif - -modules-names = tst-_res1mod1 tst-_res1mod2 \ - tst-tls1mod tst-tls1moda tst-tls1modb tst-tls1modc \ - tst-tls1modd tst-tls1mode tst-tls1modf -extra-objs += $(addsuffix .os,$(strip $(modules-names))) -generated += $(addsuffix .so,$(strip $(modules-names))) -test-extras += $(modules-names) -test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(modules-names))) - -tst-tls1mod.so-no-z-defs = yes -tst-tls1moda.so-no-z-defs = yes -tst-tls1modb.so-no-z-defs = yes -tst-tls1modc.so-no-z-defs = yes -tst-tls1modd.so-no-z-defs = yes -tst-tls1mode.so-no-z-defs = yes -tst-tls1modf.so-no-z-defs = yes - -$(test-modules): $(objpfx)%.so: $(objpfx)%.os $(common-objpfx)shlib.lds - $(build-module) - -ifeq ($(build-shared),yes) -# Build all the modules even when not actually running test programs. -tests: $(test-modules) -endif - -# What we install as libpthread.so for programs to link against is in fact a -# link script. It contains references for the various libraries we need. -# The libpthread.so object is not complete since some functions are only defined -# in libpthread_nonshared.a. -# We need to use absolute paths since otherwise local copies (if they exist) -# of the files are taken by the linker. -install: $(inst_libdir)/libpthread.so -$(inst_libdir)/libpthread.so: $(common-objpfx)format.lds \ - $(objpfx)libpthread.so$(libpthread.so-version) \ - $(inst_libdir)/$(patsubst %,$(libtype.oS),\ - $(libprefix)pthread) \ - $(+force) - (echo '/* GNU ld script';\ - echo ' Use the shared library, but some functions are only in';\ - echo ' the static library, so try that secondarily. */';\ - cat $<; \ - echo 'GROUP ( $(slibdir)/libpthread.so$(libpthread.so-version)' \ - '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)pthread)'\ - ')' \ - ) > $@.new - mv -f $@.new $@ - - -extra-B-pthread.so = -B$(common-objpfx)linuxthreads/ -$(objpfx)libpthread.so: $(addprefix $(objpfx),$(crti-objs) $(crtn-objs)) -$(objpfx)libpthread.so: +preinit += $(addprefix $(objpfx),$(crti-objs)) -$(objpfx)libpthread.so: +postinit += $(addprefix $(objpfx),$(crtn-objs)) - -znodelete-yes = -DHAVE_Z_NODELETE -CFLAGS-mutex.c += -D__NO_WEAK_PTHREAD_ALIASES -CFLAGS-specific.c += -D__NO_WEAK_PTHREAD_ALIASES -CFLAGS-pthread.c += -D__NO_WEAK_PTHREAD_ALIASES $(znodelete-$(have-z-nodelete)) -CFLAGS-ptfork.c += -D__NO_WEAK_PTHREAD_ALIASES -CFLAGS-cancel.c += -D__NO_WEAK_PTHREAD_ALIASES -D_RPC_THREAD_SAFE_ -CFLAGS-unload.c += -DPREFIX=\"$(objpfx)\" -CFLAGS-mutex.c += $(uses-callbacks) -CFLAGS-sighandler.c += $(uses-callbacks) - -ifeq (yes,$(versioning)) --include $(common-objpfx)tls.make -libc-ok-for-link = $(use-thread) -else -libc-ok-for-link = yes -endif - -ifeq (no,$(libc-ok-for-link)) -# These hacks are necessary to let us link against a libc.so that exports -# the symbols _errno, _h_errno, and _res. Those symbols are accessible -# in libc at runtime (dynamic linkable), but are not exported at link time -# so that applications cannot link against them. However, libpthread.so -# needs to link against them for its __errno_location et al functions to -# find the locations that libc's symbols resolve to. We cannot do this -# with aliases in libc.so(GLIBC_PRIVATE), because we need to refer to an -# executable's symbols when it defines them with copy relocs. -libc-link.so = $(objpfx)libc.so - -$(objpfx)libc_pic_lite.a: $(common-objpfx)libc_pic.a - cp $< $@T - $(AR) d $@T errno.os herrno.os res_libc.os - mv -f $@T $@ - -extra-objs += libc-tsd.os -$(objpfx)libc_pic_lite.os: $(objpfx)libc_pic_lite.a $(objpfx)libc-tsd.os - $(LINK.o) -nostdlib -nostartfiles -r -o $@ \ - $(LDFLAGS-c_pic.os) -Wl,-d -Wl,--whole-archive $^ - -# This trick leaves errno and h_errno undefined. -libc.so-no-z-defs = yes - -$(objpfx)libc.so: $(elfobjdir)/soinit.os \ - $(objpfx)libc_pic_lite.os \ - $(elfobjdir)/sofini.os \ - $(elfobjdir)/interp.os $(elfobjdir)/ld.so - $(build-shlib) - -generated += libc_pic_lite.a libc_pic_lite.os libc.so libc-tsd.os -else -libc-link.so = $(common-objpfx)libc.so -endif - -include ../Rules - -# Depend on libc.so so a DT_NEEDED is generated in the shared objects. -# This ensures they will load libc.so for needed symbols if loaded by -# a statically-linked program that hasn't already loaded it. -# Depend on ld.so too to get proper versions of ld.so symbols. -$(objpfx)libpthread.so: $(libc-link.so) $(common-objpfx)libc_nonshared.a \ - $(if $(filter yes,$(elf)), $(elfobjdir)/ld.so) - -# Make sure we link with the thread library. -ifeq ($(build-shared),yes) -$(addprefix $(objpfx), \ - $(filter-out $(tests-static) $(tests-reverse) unload, \ - $(tests) $(test-srcs))): $(objpfx)libpthread.so \ - $(objpfx)libpthread_nonshared.a -# $(objpfx)../libc.so is used instead of $(common-objpfx)libc.so, -# since otherwise libpthread.so comes before libc.so when linking. -$(addprefix $(objpfx), $(tests-reverse)): \ - $(objpfx)../libc.so $(objpfx)libpthread.so \ - $(objpfx)libpthread_nonshared.a -$(objpfx)../libc.so: $(common-objpfx)libc.so ; -$(addprefix $(objpfx),$(librt-tests)): $(common-objpfx)rt/librt.so -$(objpfx)unload: $(common-objpfx)dlfcn/libdl.so -$(objpfx)unload.out: $(objpfx)libpthread.so $(objpfx)libpthread_nonshared.a -else -$(addprefix $(objpfx),$(tests) $(test-srcs)): $(objpfx)libpthread.a -$(addprefix $(objpfx),$(librt-tests)): $(common-objpfx)rt/librt.a -endif -ifeq ($(build-bounded),yes) -$(tests:%=$(objpfx)%-bp): $(objpfx)libpthread_b.a -$(librt-tests:%=$(objpfx)%-bp): $(common-objpfx)rt/librt_b.a -endif - -ifeq ($(build-static),yes) -$(addprefix $(objpfx), $(tests-static)): $(objpfx)libpthread.a -endif - -ifeq ($(build-shared),yes) -vpath pt-initfini.c $(full_config_sysdirs) - -$(objpfx)pt-initfini.s: pt-initfini.c - $(compile.c) -S $(CFLAGS-pt-initfini.s) -finhibit-size-directive \ - $(patsubst -f%,-fno-%,$(exceptions)) -o $@ - -# We only have one kind of startup code files. Static binaries and -# shared libraries are build using the PIC version. -$(objpfx)crti.S: $(objpfx)pt-initfini.s - sed -n -e '1,/@HEADER_ENDS/p' \ - -e '/@_.*_PROLOG_BEGINS/,/@_.*_PROLOG_ENDS/p' \ - -e '/@TRAILER_BEGINS/,$$p' $< > $@ -$(objpfx)crtn.S: $(objpfx)pt-initfini.s - sed -n -e '1,/@HEADER_ENDS/p' \ - -e '/@_.*_EPILOG_BEGINS/,/@_.*_EPILOG_ENDS/p' \ - -e '/@TRAILER_BEGINS/,$$p' $< > $@ - -$(objpfx)defs.h: $(objpfx)pt-initfini.s - sed -n -e '/@TESTS_BEGIN/,/@TESTS_END/p' $< | \ - $(AWK) -f ../csu/defs.awk > $@ - -$(objpfx)crti.o: $(objpfx)crti.S $(objpfx)defs.h - $(compile.S) -g0 $(ASFLAGS-.os) -o $@ - -$(objpfx)crtn.o: $(objpfx)crtn.S $(objpfx)defs.h - $(compile.S) -g0 $(ASFLAGS-.os) -o $@ - -ifneq ($(multidir),.) -$(objpfx)$(multidir): - @mkdir -p $(objpfx)$(multidir) - -$(objpfx)$(multidir)/crti.o: $(objpfx)crti.o $(objpfx)$(multidir) - ln -f $< $@ - -$(objpfx)$(multidir)/crtn.o: $(objpfx)crtn.o $(objpfx)$(multidir) - ln -f $< $@ -endif - -generated += crti.S crtn.S defs.h pt-initfini.s libpthread_nonshared.a -endif - -ifeq (yes,$(build-static-nss)) -otherlibs += $(nssobjdir)/libnss_files.a $(resolvobjdir)/libnss_dns.a \ - $(resolvobjdir)/libresolv.a -endif - -ifeq (yes,$(build-shared)) -$(objpfx)tst-_res1mod2.so: $(objpfx)tst-_res1mod1.so -$(objpfx)tst-_res1: $(objpfx)tst-_res1mod2.so $(shared-thread-library) - -$(objpfx)tst-tls1: $(objpfx)tst-tls1mod.so $(shared-thread-library) - -tests: $(objpfx)tst-tls2.out -$(objpfx)tst-tls2.out: tst-tls2.sh $(objpfx)tst-tls1 \ - $(objpfx)tst-tls1moda.so $(objpfx)tst-tls1modb.so \ - $(objpfx)tst-tls1modc.so $(objpfx)tst-tls1modd.so \ - $(objpfx)tst-tls1mode.so $(objpfx)tst-tls1modf.so - $(SHELL) -e tst-tls2.sh $(common-objpfx) $(elf-objpfx) \ - $(rtld-installed-name) -generated += tst-tls2.out -endif - -ifeq (no,$(cross-compiling)) -ifeq (yes,$(build-shared)) -tests: $(objpfx)tst-signal.out $(objpfx)tst-cancel-wrappers.out -$(objpfx)tst-signal.out: tst-signal.sh $(objpfx)tst-signal - $(SHELL) -e $< $(common-objpfx) > $@ -$(objpfx)tst-cancel-wrappers.out: tst-cancel-wrappers.sh - $(SHELL) $< $(common-objpfx)/libc_pic.a \ - $(common-objpfx)/libc.a \ - $(objpfx)/libpthread_pic.a \ - $(objpfx)/libpthread.a > $@ -generated += tst-signal.out tst-cancel-wrappers.out -endif -endif diff --git a/linuxthreads/README b/linuxthreads/README deleted file mode 100644 index 955bd59e7a..0000000000 --- a/linuxthreads/README +++ /dev/null @@ -1,166 +0,0 @@ - Linuxthreads - POSIX 1003.1c kernel threads for Linux - - Copyright 1996, 1997 Xavier Leroy (Xavier.Leroy@inria.fr) - - -DESCRIPTION: - -This is release 0.7 (late beta) of LinuxThreads, a BiCapitalized -implementation of the Posix 1003.1c "pthread" interface for Linux. - -LinuxThreads provides kernel-level threads: each thread is a separate -Unix process, sharing its address space with the other threads through -the new system call clone(). Scheduling between threads is handled by -the kernel scheduler, just like scheduling between Unix processes. - - -REQUIREMENTS: - -- Linux version 2.0 and up (requires the new clone() system call - and the new realtime scheduler). - -- For Intel platforms: libc 5.2.18 or later is required. - 5.2.18 or 5.4.12 or later are recommended; - 5.3.12 and 5.4.7 have problems (see the FAQ.html file for more info). - -- Also supports glibc 2 (a.k.a. libc 6), which actually comes with - a specially-adapted version of this library. - -- Currently supports Intel, Alpha, Sparc, Motorola 68k, ARM and MIPS - platforms. - -- Multiprocessors are supported. - - -INSTALLATION: - -- Edit the Makefile, set the variables in the "Configuration" section. - -- Do "make". - -- Do "make install". - - -USING LINUXTHREADS: - - gcc -D_REENTRANT ... -lpthread - -A complete set of manual pages is included. Also see the subdirectory -Examples/ for some sample programs. - - -STATUS: - -- All functions in the Posix 1003.1c base interface implemented. - Also supports priority scheduling. - -- For users of libc 5 (H.J.Lu's libc), a number of C library functions - are reimplemented or wrapped to make them thread-safe, including: - * malloc functions - * stdio functions (define _REENTRANT before including <stdio.h>) - * per-thread errno variable (define _REENTRANT before including <errno.h>) - * directory reading functions (opendir(), etc) - * sleep() - * gmtime(), localtime() - - New library functions provided: - * flockfile(), funlockfile(), ftrylockfile() - * reentrant versions of network database functions (gethostbyname_r(), etc) - and password functions (getpwnam_r(), etc). - -- libc 6 (glibc 2) provides much better thread support than libc 5, - and comes with a specially-adapted version of LinuxThreads. - For serious multithreaded programming, you should consider switching - to glibc 2. It is available from ftp.gnu.org:/pub/gnu and its mirrors. - - -WARNING: - -Many existing libraries are not compatible with LinuxThreads, -either because they are not inherently thread-safe, or because they -have not been compiled with the -D_REENTRANT. For more info, see the -FAQ.html file in this directory. - -A prime example of the latter is Xlib. If you link it with -LinuxThreads, you'll probably get an "unknown 0 error" very -early. This is just a consequence of the Xlib binaries using the -global variable "errno" to fetch error codes, while LinuxThreads and -the C library use the per-thread "errno" location. - -See the file README.Xfree3.3 for info on how to compile the Xfree 3.3 -libraries to make them compatible with LinuxThreads. - - -KNOWN BUGS AND LIMITATIONS: - -- Threads share pretty much everything they should share according - to the standard: memory space, file descriptors, signal handlers, - current working directory, etc. One thing that they do not share - is their pid's and parent pid's. According to the standard, they - should have the same, but that's one thing we cannot achieve - in this implementation (until the CLONE_PID flag to clone() becomes - usable). - -- The current implementation uses the two signals SIGUSR1 and SIGUSR2, - so user-level code cannot employ them. Ideally, there should be two - signals reserved for this library. One signal is used for restarting - threads blocked on mutexes or conditions; the other is for thread - cancellation. - - *** This is not anymore true when the application runs on a kernel - newer than approximately 2.1.60. - -- The stacks for the threads are allocated high in the memory space, - below the stack of the initial process, and spaced 2M apart. - Stacks are allocated with the "grow on demand" flag, so they don't - use much virtual space initially (4k, currently), but can grow - up to 2M if needed. - - Reserving such a large address space for each thread means that, - on a 32-bit architecture, no more than about 1000 threads can - coexist (assuming a 2Gb address space for user processes), - but this is reasonable, since each thread uses up one entry in the - kernel's process table, which is usually limited to 512 processes. - - Another potential problem of the "grow on demand" scheme is that - nothing prevents the user from mmap'ing something in the 2M address - window reserved for a thread stack, possibly causing later extensions of - that stack to fail. Mapping at fixed addresses should be avoided - when using this library. - -- Signal handling does not fully conform to the Posix standard, - due to the fact that threads are here distinct processes that can be - sent signals individually, so there's no notion of sending a signal - to "the" process (the collection of all threads). - More precisely, here is a summary of the standard requirements - and how they are met by the implementation: - - 1- Synchronous signals (generated by the thread execution, e.g. SIGFPE) - are delivered to the thread that raised them. - (OK.) - - 2- A fatal asynchronous signal terminates all threads in the process. - (OK. The thread manager notices when a thread dies on a signal - and kills all other threads with the same signal.) - - 3- An asynchronous signal will be delivered to one of the threads - of the program which does not block the signal (it is unspecified - which). - (No, the signal is delivered to the thread it's been sent to, - based on the pid of the thread. If that thread is currently - blocking the signal, the signal remains pending.) - - 4- The signal will be delivered to at most one thread. - (OK, except for signals generated from the terminal or sent to - the process group, which will be delivered to all threads.) - -- The current implementation of the MIPS support assumes a MIPS ISA II - processor or better. These processors support atomic operations by - ll/sc instructions. Older R2000/R3000 series processors are not - supported yet; support for these will have higher overhead. - -- The current implementation of the ARM support assumes that the SWP - (atomic swap register with memory) instruction is available. This is - the case for all processors except for the ARM1 and ARM2. On StrongARM, - the SWP instruction does not bypass the cache, so multi-processor support - will be more troublesome. diff --git a/linuxthreads/README.Xfree3.2 b/linuxthreads/README.Xfree3.2 deleted file mode 100644 index ac08e15832..0000000000 --- a/linuxthreads/README.Xfree3.2 +++ /dev/null @@ -1,352 +0,0 @@ -This file describes how to make a threaded X11R6. - -You need the source-code of XFree-3.2. I used the sources of X11R6.1 -(files: xc-1.tar.gz xc-2.tar.gz xc-3.tar.gz) and the patches to -XFree-3.2 (files: README.X11.patch R6.1pl1-3.2.diff.gz cfont32.tgz). - -Untar the xc-?.tar.gz files in a directory called XF3.2 and apply -the XFree-3.2 patches as described in README.X11.patch or use the -whole XFree86 source. - -Now apply the thread patch with - -patch -p0 < XF3.2.xc.diff - -Go to the XF3.2/xc directory and make the whole thing: -nice make World >& world.log & -tail -f world.log - -Wait a few hours or interrupt the process after the shared libs -are made. The shared libs are: - -XF3.2/xc/lib/ICE/libICE.so.6.0* -XF3.2/xc/lib/PEX5/libPEX5.so.6.0* -XF3.2/xc/lib/SM/libSM.so.6.0* -XF3.2/xc/lib/X11/libX11.so.6.1* -XF3.2/xc/lib/XIE/libXIE.so.6.0* -XF3.2/xc/lib/XThrStub/libXThrStub.so.6.0* -XF3.2/xc/lib/Xaw/libXaw.so.6.1* -XF3.2/xc/lib/Xext/libXext.so.6.1* -XF3.2/xc/lib/Xi/libXi.so.6.0* -XF3.2/xc/lib/Xmu/libXmu.so.6.0* -XF3.2/xc/lib/Xt/libXt.so.6.0* -XF3.2/xc/lib/Xtst/libXtst.so.6.1* - -(The Program dga didn't compile, but I have not check out why.) - -Now you can copy the resulting libs - -cp XF3.2/xc/lib/*/*.so.?.? /usr/X11R6/lib/ - -and create some links - -cd /usr/X11R6/lib/ -ln -s libXThrStub.so.6.0 libXThrStub.so.6 -ln -s libXThrStub.so.6 libXThrStub.so - -or use make install (not tested, and needs new configuration). - -It is possible with the libXThrSub to compile X11 programs without linking -libpthread to them and not necessary to recompile already installed -unthreaded X11 programs, because libXThrSub keeps the dynamic linker quit. -On the other hand you can link libpthread to a X11 program to use threads. - -I used linux 2.0.23 and libc 5.4.7 . - -Hans-Helmut Bühmann hans@expmech.ing.tu-bs.de - ----------------------------------------------------------------------------- - -XF3.2.xc.diff: ------------------------------------------------------------------------------ -diff -u --recursive XF3.2.orig/xc/config/cf/linux.cf XF3.2/xc/config/cf/linux.cf ---- XF3.2.orig/xc/config/cf/linux.cf Sun Nov 10 17:05:30 1996 -+++ XF3.2/xc/config/cf/linux.cf Sun Nov 10 16:30:55 1996 -@@ -61,6 +61,14 @@ - #define HasSnprintf YES - #endif - -+#define HasPosixThreads YES -+#define ThreadedX YES -+#define BuildThreadStubLibrary YES -+#define NeedUIThrStubs YES -+#define HasThreadSafeAPI NO -+#define SystemMTDefines -D_REENTRANT -+#define ThreadsLibraries -lpthread -+ - #define AvoidNullMakeCommand YES - #define StripInstalledPrograms YES - #define CompressAllFonts YES -@@ -158,7 +166,7 @@ - #define LdPostLib /* Never needed */ - - #ifdef i386Architecture --#define OptimizedCDebugFlags DefaultGcc2i386Opt -m486 -+#define OptimizedCDebugFlags DefaultGcc2i386Opt -m486 -pipe - #define StandardDefines -Dlinux -D__i386__ -D_POSIX_SOURCE \ - -D_BSD_SOURCE -D_SVID_SOURCE -DX_LOCALE - #define XawI18nDefines -DUSE_XWCHAR_STRING -DUSE_XMBTOWC -diff -u --recursive XF3.2.orig/xc/config/cf/lnxLib.tmpl XF3.2/xc/config/cf/lnxLib.tmpl ---- XF3.2.orig/xc/config/cf/lnxLib.tmpl Sun Nov 10 17:05:30 1996 -+++ XF3.2/xc/config/cf/lnxLib.tmpl Sat Nov 9 14:52:39 1996 -@@ -19,7 +19,7 @@ - - #define CplusplusLibC - --#define SharedX11Reqs -+#define SharedX11Reqs -L$(BUILDLIBDIR) -lXThrStub - #define SharedOldXReqs $(LDPRELIB) $(XLIBONLY) - #define SharedXtReqs $(LDPRELIB) $(XLIBONLY) $(SMLIB) $(ICELIB) - #define SharedXawReqs $(LDPRELIB) $(XMULIB) $(XTOOLLIB) $(XLIB) -diff -u --recursive XF3.2.orig/xc/include/Xthreads.h XF3.2/xc/include/Xthreads.h ---- XF3.2.orig/xc/include/Xthreads.h Thu Dec 7 02:19:09 1995 -+++ XF3.2/xc/include/Xthreads.h Sat Nov 9 01:04:55 1996 -@@ -229,12 +229,12 @@ - #define xcondition_wait(c,m) pthread_cond_wait(c,m) - #define xcondition_signal(c) pthread_cond_signal(c) - #define xcondition_broadcast(c) pthread_cond_broadcast(c) --#ifdef _DECTHREADS_ -+#if defined(_DECTHREADS_) || defined(linux) - static xthread_t _X_no_thread_id; - #define xthread_have_id(id) !pthread_equal(id, _X_no_thread_id) - #define xthread_clear_id(id) id = _X_no_thread_id - #define xthread_equal(id1,id2) pthread_equal(id1, id2) --#endif /* _DECTHREADS_ */ -+#endif /* _DECTHREADS_ || linux */ - #if _CMA_VENDOR_ == _CMA__IBM - #ifdef DEBUG /* too much of a hack to enable normally */ - /* see also cma__obj_set_name() */ -diff -u --recursive XF3.2.orig/xc/lib/X11/util/makekeys.c XF3.2/xc/lib/X11/util/makekeys.c ---- XF3.2.orig/xc/lib/X11/util/makekeys.c Mon Apr 18 02:22:22 1994 -+++ XF3.2/xc/lib/X11/util/makekeys.c Sat Nov 9 00:44:14 1996 -@@ -73,7 +73,7 @@ - register char c; - int first; - int best_max_rehash; -- int best_z; -+ int best_z = 0; - int num_found; - KeySym val; - -diff -u --recursive XF3.2.orig/xc/lib/XThrStub/Imakefile XF3.2/xc/lib/XThrStub/Imakefile ---- XF3.2.orig/xc/lib/XThrStub/Imakefile Sun Nov 10 17:08:12 1996 -+++ XF3.2/xc/lib/XThrStub/Imakefile Sat Nov 9 19:04:51 1996 -@@ -25,7 +25,7 @@ - DEFINES = $(ALLOC_DEFINES) - INCLUDES = - SRCS = $(STUBSRCS) -- OBJS = $(STUBOBJS -+ OBJS = $(STUBOBJS) - LINTLIBS = $(LINTXLIB) - - #include <Library.tmpl> -diff -u --recursive XF3.2.orig/xc/lib/XThrStub/UIThrStubs.c XF3.2/xc/lib/XThrStub/UIThrStubs.c ---- XF3.2.orig/xc/lib/XThrStub/UIThrStubs.c Sun Nov 10 17:08:12 1996 -+++ XF3.2/xc/lib/XThrStub/UIThrStubs.c Sun Nov 10 15:14:55 1996 -@@ -37,16 +37,43 @@ - * specificies the thread library on the link line. - */ - -+#if defined(linux) -+#include <pthread.h> -+#else - #include <thread.h> - #include <synch.h> -+#endif - -+#if defined(linux) -+static pthread_t no_thread_id; -+#endif /* defined(linux) */ -+ -+#if defined(linux) -+#pragma weak pthread_self = _Xthr_self_stub_ -+pthread_t -+_Xthr_self_stub_() -+{ -+ return(no_thread_id); -+} -+#else /* defined(linux) */ - #pragma weak thr_self = _Xthr_self_stub_ - thread_t - _Xthr_self_stub_() - { - return((thread_t)0); - } -+#endif /* defined(linux) */ - -+#if defined(linux) -+#pragma weak pthread_mutex_init = _Xmutex_init_stub_ -+int -+_Xmutex_init_stub_(m, a) -+ pthread_mutex_t *m; -+ __const pthread_mutexattr_t *a; -+{ -+ return(0); -+} -+#else /* defined(linux) */ - #pragma weak mutex_init = _Xmutex_init_stub_ - int - _Xmutex_init_stub_(m, t, a) -@@ -56,7 +83,17 @@ - { - return(0); - } -+#endif /* defined(linux) */ - -+#if defined(linux) -+#pragma weak pthread_mutex_destroy = _Xmutex_destroy_stub_ -+int -+_Xmutex_destroy_stub_(m) -+ pthread_mutex_t *m; -+{ -+ return(0); -+} -+#else /* defined(linux) */ - #pragma weak mutex_destroy = _Xmutex_destroy_stub_ - int - _Xmutex_destroy_stub_(m) -@@ -64,7 +101,17 @@ - { - return(0); - } -+#endif /* defined(linux) */ - -+#if defined(linux) -+#pragma weak pthread_mutex_lock = _Xmutex_lock_stub_ -+int -+_Xmutex_lock_stub_(m) -+ pthread_mutex_t *m; -+{ -+ return(0); -+} -+#else /* defined(linux) */ - #pragma weak mutex_lock = _Xmutex_lock_stub_ - int - _Xmutex_lock_stub_(m) -@@ -72,7 +119,17 @@ - { - return(0); - } -+#endif /* defined(linux) */ - -+#if defined(linux) -+#pragma weak pthread_mutex_unlock = _Xmutex_unlock_stub_ -+int -+_Xmutex_unlock_stub_(m) -+ pthread_mutex_t *m; -+{ -+ return(0); -+} -+#else /* defined(linux) */ - #pragma weak mutex_unlock = _Xmutex_unlock_stub_ - int - _Xmutex_unlock_stub_(m) -@@ -80,7 +137,18 @@ - { - return(0); - } -+#endif /* defined(linux) */ - -+#if defined(linux) -+#pragma weak pthread_cond_init = _Xcond_init_stub_ -+int -+_Xcond_init_stub_(c, a) -+ pthread_cond_t *c; -+ __const pthread_condattr_t *a; -+{ -+ return(0); -+} -+#else /* defined(linux) */ - #pragma weak cond_init = _Xcond_init_stub_ - int - _Xcond_init_stub_(c, t, a) -@@ -90,7 +158,17 @@ - { - return(0); - } -+#endif /* defined(linux) */ - -+#if defined(linux) -+#pragma weak pthread_cond_destroy = _Xcond_destroy_stub_ -+int -+_Xcond_destroy_stub_(c) -+ pthread_cond_t *c; -+{ -+ return(0); -+} -+#else /* defined(linux) */ - #pragma weak cond_destroy = _Xcond_destroy_stub_ - int - _Xcond_destroy_stub_(c) -@@ -98,7 +176,18 @@ - { - return(0); - } -+#endif /* defined(linux) */ - -+#if defined(linux) -+#pragma weak pthread_cond_wait = _Xcond_wait_stub_ -+int -+_Xcond_wait_stub_(c,m) -+ pthread_cond_t *c; -+ pthread_mutex_t *m; -+{ -+ return(0); -+} -+#else /* defined(linux) */ - #pragma weak cond_wait = _Xcond_wait_stub_ - int - _Xcond_wait_stub_(c,m) -@@ -107,7 +196,17 @@ - { - return(0); - } -+#endif /* defined(linux) */ - -+#if defined(linux) -+#pragma weak pthread_cond_signal = _Xcond_signal_stub_ -+int -+_Xcond_signal_stub_(c) -+ pthread_cond_t *c; -+{ -+ return(0); -+} -+#else /* defined(linux) */ - #pragma weak cond_signal = _Xcond_signal_stub_ - int - _Xcond_signal_stub_(c) -@@ -115,7 +214,17 @@ - { - return(0); - } -+#endif /* defined(linux) */ - -+#if defined(linux) -+#pragma weak pthread_cond_broadcast = _Xcond_broadcast_stub_ -+int -+_Xcond_broadcast_stub_(c) -+ pthread_cond_t *c; -+{ -+ return(0); -+} -+#else /* defined(linux) */ - #pragma weak cond_broadcast = _Xcond_broadcast_stub_ - int - _Xcond_broadcast_stub_(c) -@@ -123,3 +232,15 @@ - { - return(0); - } -+#endif /* defined(linux) */ -+ -+#if defined(linux) -+#pragma weak pthread_equal = _Xthr_equal_stub_ -+int -+_Xthr_equal_stub_(t1, t2) -+ pthread_t t1; -+ pthread_t t2; -+{ -+ return(1); -+} -+#endif /* defined(linux) */ -------------------------------------------------------------------------- diff --git a/linuxthreads/Versions b/linuxthreads/Versions deleted file mode 100644 index 615a132e54..0000000000 --- a/linuxthreads/Versions +++ /dev/null @@ -1,188 +0,0 @@ -libc { - GLIBC_2.0 { - pthread_attr_destroy; pthread_attr_getdetachstate; - pthread_attr_getinheritsched; pthread_attr_getschedparam; - pthread_attr_getschedpolicy; pthread_attr_getscope; pthread_attr_init; - pthread_attr_setdetachstate; pthread_attr_setinheritsched; - pthread_attr_setschedparam; pthread_attr_setschedpolicy; - pthread_attr_setscope; pthread_cond_broadcast; pthread_cond_destroy; - pthread_cond_init; pthread_cond_signal; pthread_cond_wait; - pthread_cond_timedwait; - pthread_condattr_destroy; pthread_condattr_init; pthread_equal; - pthread_exit; pthread_getschedparam; pthread_mutex_destroy; - pthread_mutex_init; pthread_mutex_lock; pthread_mutex_unlock; - pthread_self; pthread_setcancelstate; pthread_setcanceltype; - pthread_setschedparam; - } - GLIBC_2.1 { - pthread_attr_init; - } - GLIBC_2.3.2 { - # Changed pthread_cond_t. - pthread_cond_init; pthread_cond_destroy; - pthread_cond_wait; pthread_cond_signal; - pthread_cond_broadcast; pthread_cond_timedwait; - } - GLIBC_PRIVATE { - # Internal libc interface to libpthread - __libc_dl_error_tsd; - - __libc_pthread_init; __libc_current_sigrtmin_private; - __libc_current_sigrtmax_private; __libc_allocate_rtsig_private; - - __libc_creat; __libc_poll; __libc_pselect; __libc_select; - __libc_sigpause; __libc_sigsuspend; __libc_sigwait; __libc_sigwaitinfo; - __libc_waitid; __libc___xpg_sigpause; __librt_enable_asynccancel; - __librt_disable_asynccancel; __librt_multiple_threads; - - __libc_sigaction; __on_exit; - } -} - -libpthread { - GLIBC_2.0 { - # Hidden entry point (through macros). - _pthread_cleanup_pop; _pthread_cleanup_pop_restore; _pthread_cleanup_push; - _pthread_cleanup_push_defer; - - # Overwritten libc functions. - accept; close; connect; fcntl; fork; fsync; longjmp; lseek; msync; - nanosleep; open; pause; raise; read; recv; recvfrom; recvmsg; send; - sendmsg; sendto; sigaction; siglongjmp; system; tcdrain; wait; - waitpid; write; - __close; __connect; __fcntl; __lseek; __open; __read; __send; __wait; - __write; - _IO_flockfile; _IO_ftrylockfile; _IO_funlockfile; - vfork; __fork; - - # POSIX.1c extensions to libc. - flockfile; funlockfile; ftrylockfile; - - # Non-standard POSIX1.x functions. - pthread_kill_other_threads_np; pthread_mutexattr_getkind_np; - pthread_mutexattr_setkind_np; - - # Real POSIX.1c functions. - pthread_atfork; pthread_attr_destroy; pthread_attr_getdetachstate; - pthread_attr_getinheritsched; pthread_attr_getschedparam; - pthread_attr_getschedpolicy; pthread_attr_getscope; pthread_attr_init; - pthread_attr_setdetachstate; pthread_attr_setinheritsched; - pthread_attr_setschedparam; pthread_attr_setschedpolicy; - pthread_attr_setscope; pthread_cancel; pthread_cond_broadcast; - pthread_cond_destroy; pthread_cond_init; pthread_cond_signal; - pthread_cond_timedwait; pthread_cond_wait; pthread_condattr_destroy; - pthread_condattr_init; pthread_create; pthread_detach; pthread_equal; - pthread_exit; pthread_getschedparam; pthread_getspecific; pthread_join; - pthread_key_create; pthread_key_delete; pthread_kill; - pthread_mutex_destroy; pthread_mutex_init; pthread_mutex_lock; - pthread_mutex_trylock; pthread_mutex_unlock; pthread_mutexattr_destroy; - pthread_mutexattr_init; pthread_once; pthread_self; pthread_setcancelstate; - pthread_setcanceltype; pthread_setschedparam; pthread_setspecific; - pthread_sigmask; pthread_testcancel; - - sem_destroy; sem_getvalue; sem_init; sem_post; sem_trywait; sem_wait; - sigwait; - - # Protected names for functions used in other shared objects. - __pthread_atfork; __pthread_getspecific; - __pthread_key_create; __pthread_mutex_destroy; __pthread_mutex_init; - __pthread_mutex_lock; __pthread_mutex_trylock; __pthread_mutex_unlock; - __pthread_mutexattr_destroy; __pthread_mutexattr_init; - __pthread_mutexattr_settype; __pthread_once; __pthread_setspecific; - - # The error functions. - __errno_location; __h_errno_location; - - # Must be preemptible - __sigaction; - } - GLIBC_2.1 { - # Functions with changed interface. - pthread_attr_init; pthread_create; - - # Unix98 extensions. - pthread_rwlock_init; pthread_rwlock_destroy; pthread_rwlock_rdlock; - pthread_rwlock_tryrdlock; pthread_rwlock_wrlock; pthread_rwlock_trywrlock; - pthread_rwlock_unlock; pthread_rwlockattr_init; pthread_rwlockattr_destroy; - pthread_rwlockattr_getpshared; pthread_rwlockattr_setpshared; - pthread_rwlockattr_getkind_np; pthread_rwlockattr_setkind_np; - - pthread_attr_getguardsize; pthread_attr_setguardsize; - pthread_attr_getstackaddr; pthread_attr_setstackaddr; - pthread_attr_getstacksize; pthread_attr_setstacksize; - - pthread_getconcurrency; pthread_setconcurrency; - - pthread_mutexattr_gettype; pthread_mutexattr_settype; - - sem_destroy; sem_getvalue; sem_init; sem_post; sem_trywait; sem_wait; - - # helper functions - __libc_current_sigrtmin; __libc_current_sigrtmax; - __libc_allocate_rtsig; - } - GLIBC_2.1.1 { - sem_close; sem_open; sem_unlink; - } - GLIBC_2.1.2 { - __vfork; - } - GLIBC_2.2 { - # For the cancelation wrappers. - pread; __pread64; pread64; pwrite; __pwrite64; pwrite64; lseek64; - open64; __open64; - - __res_state; - - # Names used internally. - __pthread_rwlock_init; __pthread_rwlock_destroy; __pthread_rwlock_rdlock; - __pthread_rwlock_tryrdlock; __pthread_rwlock_wrlock; - __pthread_rwlock_trywrlock; __pthread_rwlock_unlock; - - # No really implemented. - pthread_condattr_getpshared; pthread_condattr_setpshared; - pthread_mutexattr_getpshared; pthread_mutexattr_setpshared; - - # New functions from IEEE Std. 1003.1-200x. - sem_timedwait; - pthread_attr_getstack; pthread_attr_setstack; - pthread_spin_destroy; pthread_spin_init; pthread_spin_lock; - pthread_spin_trylock; pthread_spin_unlock; - pthread_getcpuclockid; - pthread_barrier_destroy; pthread_barrier_init; pthread_barrier_wait; - pthread_barrierattr_destroy; pthread_barrierattr_init; - pthread_barrierattr_setpshared; - pthread_mutex_timedlock; - pthread_rwlock_timedrdlock; pthread_rwlock_timedwrlock; - - # Extensions. - pthread_yield; - } - GLIBC_2.2.3 { - # Extensions. - pthread_getattr_np; - } - GLIBC_2.2.6 { - # Cancellation wrapper - __nanosleep; - } - GLIBC_2.3.2 { - # Changed pthread_cond_t. - pthread_cond_init; pthread_cond_destroy; - pthread_cond_wait; pthread_cond_timedwait; - pthread_cond_signal; pthread_cond_broadcast; - } - - # Hey you!! Yes, YOU! Do not add new symbols here! - # The linuxthreads libpthread ABI froze at GLIBC_2.3.2 and lacks - # numerous additions that NPTL's libpthread has. We can't go adding - # any new symbols here unless we support all the new symbols in NPTL, - # and we don't want to do that. Linuxthreads is only alive for - # compatibility with old binaries using old interfaces. - - GLIBC_PRIVATE { - # Internal libc interface to libpthread - __pthread_initialize; - __pthread_kill_other_threads_np; - } -} diff --git a/linuxthreads/alloca_cutoff.c b/linuxthreads/alloca_cutoff.c deleted file mode 100644 index ca064b3bb6..0000000000 --- a/linuxthreads/alloca_cutoff.c +++ /dev/null @@ -1,36 +0,0 @@ -/* Determine whether block of given size can be allocated on the stack or not. - Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <alloca.h> -#include <stdlib.h> -#include <sys/param.h> -#include "internals.h" -#include <sysdep-cancel.h> - -int -__libc_alloca_cutoff (size_t size) -{ - if (! SINGLE_THREAD_P) - { - pthread_descr self = thread_self (); - return size <= LIBC_THREAD_GETMEM (self, p_alloca_cutoff); - } - - return size <= __MAX_ALLOCA_CUTOFF; -} diff --git a/linuxthreads/attr.c b/linuxthreads/attr.c deleted file mode 100644 index 2adc7ccd7a..0000000000 --- a/linuxthreads/attr.c +++ /dev/null @@ -1,485 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Handling of thread attributes */ - -#include <errno.h> -#include <inttypes.h> -#include <stdio.h> -#include <stdio_ext.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <sys/param.h> -#include <sys/resource.h> -#include "pthread.h" -#include "internals.h" -#include <shlib-compat.h> -#include <ldsodefs.h> - - -int __pthread_attr_init_2_1(pthread_attr_t *attr) -{ - size_t ps = __getpagesize (); - - attr->__detachstate = PTHREAD_CREATE_JOINABLE; - attr->__schedpolicy = SCHED_OTHER; - attr->__schedparam.sched_priority = 0; - attr->__inheritsched = PTHREAD_EXPLICIT_SCHED; - attr->__scope = PTHREAD_SCOPE_SYSTEM; -#ifdef NEED_SEPARATE_REGISTER_STACK - attr->__guardsize = ps + ps; -#else - attr->__guardsize = ps; -#endif - attr->__stackaddr = NULL; - attr->__stackaddr_set = 0; - attr->__stacksize = STACK_SIZE - ps; - return 0; -} - -versioned_symbol (libpthread, __pthread_attr_init_2_1, pthread_attr_init, - GLIBC_2_1); - -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) -int __pthread_attr_init_2_0(pthread_attr_t *attr) -{ - attr->__detachstate = PTHREAD_CREATE_JOINABLE; - attr->__schedpolicy = SCHED_OTHER; - attr->__schedparam.sched_priority = 0; - attr->__inheritsched = PTHREAD_EXPLICIT_SCHED; - attr->__scope = PTHREAD_SCOPE_SYSTEM; - return 0; -} -compat_symbol (libpthread, __pthread_attr_init_2_0, pthread_attr_init, - GLIBC_2_0); -#endif - -int __pthread_attr_destroy(pthread_attr_t *attr) -{ - return 0; -} -strong_alias (__pthread_attr_destroy, pthread_attr_destroy); - -int __pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate) -{ - if (detachstate < PTHREAD_CREATE_JOINABLE || - detachstate > PTHREAD_CREATE_DETACHED) - return EINVAL; - attr->__detachstate = detachstate; - return 0; -} -strong_alias (__pthread_attr_setdetachstate, pthread_attr_setdetachstate); - -int __pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate) -{ - *detachstate = attr->__detachstate; - return 0; -} -strong_alias (__pthread_attr_getdetachstate, pthread_attr_getdetachstate); - -int __pthread_attr_setschedparam(pthread_attr_t *attr, - const struct sched_param *param) -{ - int max_prio = __sched_get_priority_max(attr->__schedpolicy); - int min_prio = __sched_get_priority_min(attr->__schedpolicy); - - if (param->sched_priority < min_prio || param->sched_priority > max_prio) - return EINVAL; - memcpy (&attr->__schedparam, param, sizeof (struct sched_param)); - return 0; -} -strong_alias (__pthread_attr_setschedparam, pthread_attr_setschedparam); - -int __pthread_attr_getschedparam(const pthread_attr_t *attr, - struct sched_param *param) -{ - memcpy (param, &attr->__schedparam, sizeof (struct sched_param)); - return 0; -} -strong_alias (__pthread_attr_getschedparam, pthread_attr_getschedparam); - -int __pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy) -{ - if (policy != SCHED_OTHER && policy != SCHED_FIFO && policy != SCHED_RR) - return EINVAL; - attr->__schedpolicy = policy; - return 0; -} -strong_alias (__pthread_attr_setschedpolicy, pthread_attr_setschedpolicy); - -int __pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy) -{ - *policy = attr->__schedpolicy; - return 0; -} -strong_alias (__pthread_attr_getschedpolicy, pthread_attr_getschedpolicy); - -int __pthread_attr_setinheritsched(pthread_attr_t *attr, int inherit) -{ - if (inherit != PTHREAD_INHERIT_SCHED && inherit != PTHREAD_EXPLICIT_SCHED) - return EINVAL; - attr->__inheritsched = inherit; - return 0; -} -strong_alias (__pthread_attr_setinheritsched, pthread_attr_setinheritsched); - -int __pthread_attr_getinheritsched(const pthread_attr_t *attr, int *inherit) -{ - *inherit = attr->__inheritsched; - return 0; -} -strong_alias (__pthread_attr_getinheritsched, pthread_attr_getinheritsched); - -int __pthread_attr_setscope(pthread_attr_t *attr, int scope) -{ - switch (scope) { - case PTHREAD_SCOPE_SYSTEM: - attr->__scope = scope; - return 0; - case PTHREAD_SCOPE_PROCESS: - return ENOTSUP; - default: - return EINVAL; - } -} -strong_alias (__pthread_attr_setscope, pthread_attr_setscope); - -int __pthread_attr_getscope(const pthread_attr_t *attr, int *scope) -{ - *scope = attr->__scope; - return 0; -} -strong_alias (__pthread_attr_getscope, pthread_attr_getscope); - -int __pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize) -{ - /* The guard size must not be larger than the stack itself */ - if (guardsize >= attr->__stacksize) return EINVAL; - - attr->__guardsize = guardsize; - - return 0; -} -weak_alias (__pthread_attr_setguardsize, pthread_attr_setguardsize) - -int __pthread_attr_getguardsize(const pthread_attr_t *attr, size_t *guardsize) -{ - *guardsize = attr->__guardsize; - return 0; -} -weak_alias (__pthread_attr_getguardsize, pthread_attr_getguardsize) - -int __pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr) -{ - attr->__stackaddr = stackaddr; - attr->__stackaddr_set = 1; - return 0; -} -weak_alias (__pthread_attr_setstackaddr, pthread_attr_setstackaddr) - -link_warning (pthread_attr_setstackaddr, - "the use of `pthread_attr_setstackaddr' is deprecated, use `pthread_attr_setstack'") - -int __pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr) -{ - /* XXX This function has a stupid definition. The standard specifies - no error value but what is if no stack address was set? We simply - return the value we have in the member. */ - *stackaddr = attr->__stackaddr; - return 0; -} -weak_alias (__pthread_attr_getstackaddr, pthread_attr_getstackaddr) - -link_warning (pthread_attr_getstackaddr, - "the use of `pthread_attr_getstackaddr' is deprecated, use `pthread_attr_getstack'") - - -int __pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize) -{ -#ifdef FLOATING_STACKS - /* We have to check against the maximum allowed stack size. This is no - problem if the manager is already started and we determined it. If - this hasn't happened, we have to find the limit outself. */ - if (__pthread_max_stacksize == 0) - __pthread_init_max_stacksize (); - - if (stacksize > __pthread_max_stacksize) - return EINVAL; -#else - /* We have a fixed size limit. */ - if (stacksize > STACK_SIZE) - return EINVAL; -#endif - - /* We don't accept value smaller than PTHREAD_STACK_MIN. */ - if (stacksize < PTHREAD_STACK_MIN) - return EINVAL; - - attr->__stacksize = stacksize; - return 0; -} - -#if PTHREAD_STACK_MIN == 16384 -weak_alias (__pthread_attr_setstacksize, pthread_attr_setstacksize) -#else -versioned_symbol (libpthread, __pthread_attr_setstacksize, - pthread_attr_setstacksize, GLIBC_2_3_3); - -# if SHLIB_COMPAT(libpthread, GLIBC_2_1, GLIBC_2_3_3) - -int __old_pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize) -{ -# ifdef FLOATING_STACKS - /* We have to check against the maximum allowed stack size. This is no - problem if the manager is already started and we determined it. If - this hasn't happened, we have to find the limit outself. */ - if (__pthread_max_stacksize == 0) - __pthread_init_max_stacksize (); - - if (stacksize > __pthread_max_stacksize) - return EINVAL; -# else - /* We have a fixed size limit. */ - if (stacksize > STACK_SIZE) - return EINVAL; -# endif - - /* We don't accept value smaller than old PTHREAD_STACK_MIN. */ - if (stacksize < 16384) - return EINVAL; - - attr->__stacksize = stacksize; - return 0; -} -compat_symbol (libpthread, __old_pthread_attr_setstacksize, - pthread_attr_setstacksize, GLIBC_2_1); -# endif -#endif - - -int __pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize) -{ - *stacksize = attr->__stacksize; - return 0; -} -weak_alias (__pthread_attr_getstacksize, pthread_attr_getstacksize) - -int __pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr, - size_t stacksize) -{ - int err; - - if ((((uintptr_t) stackaddr) - & (__alignof__ (struct _pthread_descr_struct) - 1)) != 0) - err = EINVAL; - else - err = __pthread_attr_setstacksize (attr, stacksize); - if (err == 0) - { -#ifndef _STACK_GROWS_UP - attr->__stackaddr = (char *) stackaddr + stacksize; -#else - attr->__stackaddr = stackaddr; -#endif - attr->__stackaddr_set = 1; - } - - return err; -} - -#if PTHREAD_STACK_MIN == 16384 -weak_alias (__pthread_attr_setstack, pthread_attr_setstack) -#else -versioned_symbol (libpthread, __pthread_attr_setstack, pthread_attr_setstack, - GLIBC_2_3_3); -# if SHLIB_COMPAT(libpthread, GLIBC_2_2, GLIBC_2_3_3) -int __old_pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr, - size_t stacksize) -{ - int err; - - if ((((uintptr_t) stackaddr) - & (__alignof__ (struct _pthread_descr_struct) - 1)) != 0) - err = EINVAL; - else - err = __old_pthread_attr_setstacksize (attr, stacksize); - if (err == 0) - { -# ifndef _STACK_GROWS_UP - attr->__stackaddr = (char *) stackaddr + stacksize; -# else - attr->__stackaddr = stackaddr; -# endif - attr->__stackaddr_set = 1; - } - - return err; -} - -compat_symbol (libpthread, __old_pthread_attr_setstack, pthread_attr_setstack, - GLIBC_2_2); - -# endif -#endif - -int __pthread_attr_getstack (const pthread_attr_t *attr, void **stackaddr, - size_t *stacksize) -{ - /* XXX This function has a stupid definition. The standard specifies - no error value but what is if no stack address was set? We simply - return the value we have in the member. */ -#ifndef _STACK_GROWS_UP - *stackaddr = (char *) attr->__stackaddr - attr->__stacksize; -#else - *stackaddr = attr->__stackaddr; -#endif - *stacksize = attr->__stacksize; - return 0; -} -weak_alias (__pthread_attr_getstack, pthread_attr_getstack) - -int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr) -{ - pthread_handle handle = thread_handle (thread); - pthread_descr descr; - int ret = 0; - - if (handle == NULL) - return ENOENT; - - descr = handle->h_descr; - - attr->__detachstate = (descr->p_detached - ? PTHREAD_CREATE_DETACHED - : PTHREAD_CREATE_JOINABLE); - - attr->__schedpolicy = __sched_getscheduler (descr->p_pid); - if (attr->__schedpolicy == -1) - return errno; - - if (__sched_getparam (descr->p_pid, - (struct sched_param *) &attr->__schedparam) != 0) - return errno; - - attr->__inheritsched = descr->p_inheritsched; - attr->__scope = PTHREAD_SCOPE_SYSTEM; - -#ifdef _STACK_GROWS_DOWN -# ifdef USE_TLS - attr->__stacksize = descr->p_stackaddr - (char *)descr->p_guardaddr - - descr->p_guardsize; -# else - attr->__stacksize = (char *)(descr + 1) - (char *)descr->p_guardaddr - - descr->p_guardsize; -# endif -#else -# ifdef USE_TLS - attr->__stacksize = (char *)descr->p_guardaddr - descr->p_stackaddr; -# else - attr->__stacksize = (char *)descr->p_guardaddr - (char *)descr; -# endif -#endif - attr->__guardsize = descr->p_guardsize; - attr->__stackaddr_set = descr->p_userstack; -#ifdef NEED_SEPARATE_REGISTER_STACK - if (descr->p_userstack == 0) - attr->__stacksize *= 2; - /* XXX This is awkward. The guard pages are in the middle of the - two stacks. We must count the guard size in the stack size since - otherwise the range of the stack area cannot be computed. */ - attr->__stacksize += attr->__guardsize; -#endif -#ifdef USE_TLS - attr->__stackaddr = descr->p_stackaddr; -#else -# ifndef _STACK_GROWS_UP - attr->__stackaddr = (char *)(descr + 1); -# else - attr->__stackaddr = (char *)descr; -# endif -#endif - -#ifdef USE_TLS - if (attr->__stackaddr == NULL) -#else - if (descr == &__pthread_initial_thread) -#endif - { - /* Stack size limit. */ - struct rlimit rl; - - /* The safest way to get the top of the stack is to read - /proc/self/maps and locate the line into which - __libc_stack_end falls. */ - FILE *fp = fopen ("/proc/self/maps", "rc"); - if (fp == NULL) - ret = errno; - /* We need the limit of the stack in any case. */ - else if (getrlimit (RLIMIT_STACK, &rl) != 0) - ret = errno; - else - { - /* We need no locking. */ - __fsetlocking (fp, FSETLOCKING_BYCALLER); - - /* Until we found an entry (which should always be the case) - mark the result as a failure. */ - ret = ENOENT; - - char *line = NULL; - size_t linelen = 0; - uintptr_t last_to = 0; - - while (! feof_unlocked (fp)) - { - if (__getdelim (&line, &linelen, '\n', fp) <= 0) - break; - - uintptr_t from; - uintptr_t to; - if (sscanf (line, "%" SCNxPTR "-%" SCNxPTR, &from, &to) != 2) - continue; - if (from <= (uintptr_t) __libc_stack_end - && (uintptr_t) __libc_stack_end < to) - { - /* Found the entry. Now we have the info we need. */ - attr->__stacksize = rl.rlim_cur; -#ifdef _STACK_GROWS_UP - /* Don't check to enforce a limit on the __stacksize */ - attr->__stackaddr = (void *) from; -#else - attr->__stackaddr = (void *) to; - - /* The limit might be too high. */ - if ((size_t) attr->__stacksize - > (size_t) attr->__stackaddr - last_to) - attr->__stacksize = (size_t) attr->__stackaddr - last_to; -#endif - - /* We succeed and no need to look further. */ - ret = 0; - break; - } - last_to = to; - } - - fclose (fp); - free (line); - } - } - - return 0; - -} diff --git a/linuxthreads/barrier.c b/linuxthreads/barrier.c deleted file mode 100644 index 37d997cfc1..0000000000 --- a/linuxthreads/barrier.c +++ /dev/null @@ -1,128 +0,0 @@ -/* POSIX barrier implementation for LinuxThreads. - Copyright (C) 2000, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>, 2000. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "queue.h" -#include "restart.h" - -int -pthread_barrier_wait(pthread_barrier_t *barrier) -{ - pthread_descr self = thread_self(); - pthread_descr temp_wake_queue, th; - int result = 0; - - __pthread_lock(&barrier->__ba_lock, self); - - /* If the required number of threads have achieved rendezvous... */ - if (barrier->__ba_present >= barrier->__ba_required - 1) - { - /* ... then this last caller shall be the serial thread */ - result = PTHREAD_BARRIER_SERIAL_THREAD; - /* Copy and clear wait queue and reset barrier. */ - temp_wake_queue = barrier->__ba_waiting; - barrier->__ba_waiting = NULL; - barrier->__ba_present = 0; - } - else - { - result = 0; - barrier->__ba_present++; - enqueue(&barrier->__ba_waiting, self); - } - - __pthread_unlock(&barrier->__ba_lock); - - if (result == 0) - { - /* Non-serial threads have to suspend */ - suspend(self); - /* We don't bother dealing with cancellation because the POSIX - spec for barriers doesn't mention that pthread_barrier_wait - is a cancellation point. */ - } - else - { - /* Serial thread wakes up all others. */ - while ((th = dequeue(&temp_wake_queue)) != NULL) - restart(th); - } - - return result; -} - -int -pthread_barrier_init(pthread_barrier_t *barrier, - const pthread_barrierattr_t *attr, - unsigned int count) -{ - if (count == 0) - return EINVAL; - - __pthread_init_lock(&barrier->__ba_lock); - barrier->__ba_required = count; - barrier->__ba_present = 0; - barrier->__ba_waiting = NULL; - return 0; -} - -int -pthread_barrier_destroy(pthread_barrier_t *barrier) -{ - if (barrier->__ba_waiting != NULL) return EBUSY; - return 0; -} - -int -pthread_barrierattr_init(pthread_barrierattr_t *attr) -{ - attr->__pshared = PTHREAD_PROCESS_PRIVATE; - return 0; -} - -int -pthread_barrierattr_destroy(pthread_barrierattr_t *attr) -{ - return 0; -} - -int -__pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr, - int *pshared) -{ - *pshared = PTHREAD_PROCESS_PRIVATE; - return 0; -} - -int -pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared) -{ - if (pshared != PTHREAD_PROCESS_PRIVATE && pshared != PTHREAD_PROCESS_SHARED) - return EINVAL; - - /* For now it is not possible to shared a conditional variable. */ - if (pshared != PTHREAD_PROCESS_PRIVATE) - return ENOSYS; - - return 0; -} diff --git a/linuxthreads/bug-sleep.c b/linuxthreads/bug-sleep.c deleted file mode 100644 index f29a6b73c0..0000000000 --- a/linuxthreads/bug-sleep.c +++ /dev/null @@ -1,34 +0,0 @@ -/* PR libc/4005 */ -#include <pthread.h> -#include <stdio.h> -#include <unistd.h> -#include <time.h> - -void * -run_thread (void *a) -{ - while (1) - { - sleep (10); - } - return 0; -} - -int -main (void) -{ - pthread_t thr; - void *result; - alarm (4); - printf ("Starting thread.\n"); - pthread_create (&thr, 0, run_thread, 0); - sleep (2); - printf ("Canceling thread.\n"); - pthread_cancel (thr); - pthread_join (thr, &result); - if (result == PTHREAD_CANCELED) - printf ("Thread canceled.\n"); - else - printf ("Thread exited.\n"); - return 0; -} diff --git a/linuxthreads/cancel.c b/linuxthreads/cancel.c deleted file mode 100644 index d8053ca899..0000000000 --- a/linuxthreads/cancel.c +++ /dev/null @@ -1,234 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Thread cancellation */ - -#include <errno.h> -#include <libc-internal.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "restart.h" - -#ifdef _STACK_GROWS_DOWN -# define FRAME_LEFT(frame, other) ((char *) frame >= (char *) other) -#elif _STACK_GROWS_UP -# define FRAME_LEFT(frame, other) ((char *) frame <= (char *) other) -#else -# error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP" -#endif - - -int __pthread_setcancelstate(int state, int * oldstate) -{ - pthread_descr self = thread_self(); - if (state < PTHREAD_CANCEL_ENABLE || state > PTHREAD_CANCEL_DISABLE) - return EINVAL; - if (oldstate != NULL) *oldstate = THREAD_GETMEM(self, p_cancelstate); - THREAD_SETMEM(self, p_cancelstate, state); - if (THREAD_GETMEM(self, p_canceled) && - THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE && - THREAD_GETMEM(self, p_canceltype) == PTHREAD_CANCEL_ASYNCHRONOUS) - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - return 0; -} -strong_alias (__pthread_setcancelstate, pthread_setcancelstate); - -int __pthread_setcanceltype(int type, int * oldtype) -{ - pthread_descr self = thread_self(); - if (type < PTHREAD_CANCEL_DEFERRED || type > PTHREAD_CANCEL_ASYNCHRONOUS) - return EINVAL; - if (oldtype != NULL) *oldtype = THREAD_GETMEM(self, p_canceltype); - THREAD_SETMEM(self, p_canceltype, type); - if (THREAD_GETMEM(self, p_canceled) && - THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE && - THREAD_GETMEM(self, p_canceltype) == PTHREAD_CANCEL_ASYNCHRONOUS) - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - return 0; -} -strong_alias (__pthread_setcanceltype, pthread_setcanceltype); - - -/* The next two functions are similar to pthread_setcanceltype() but - more specialized for the use in the cancelable functions like write(). - They do not need to check parameters etc. */ -int -attribute_hidden -__pthread_enable_asynccancel (void) -{ - pthread_descr self = thread_self(); - int oldtype = THREAD_GETMEM(self, p_canceltype); - THREAD_SETMEM(self, p_canceltype, PTHREAD_CANCEL_ASYNCHRONOUS); - if (__builtin_expect (THREAD_GETMEM(self, p_canceled), 0) && - THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE) - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - return oldtype; -} - -void -internal_function attribute_hidden -__pthread_disable_asynccancel (int oldtype) -{ - pthread_descr self = thread_self(); - THREAD_SETMEM(self, p_canceltype, oldtype); -} - - -int pthread_cancel(pthread_t thread) -{ - pthread_handle handle = thread_handle(thread); - int pid; - int dorestart = 0; - pthread_descr th; - pthread_extricate_if *pextricate; - int already_canceled; - - __pthread_lock(&handle->h_lock, NULL); - if (invalid_handle(handle, thread)) { - __pthread_unlock(&handle->h_lock); - return ESRCH; - } - - th = handle->h_descr; - - already_canceled = th->p_canceled; - th->p_canceled = 1; - - if (th->p_cancelstate == PTHREAD_CANCEL_DISABLE || already_canceled) { - __pthread_unlock(&handle->h_lock); - return 0; - } - - pextricate = th->p_extricate; - pid = th->p_pid; - - /* If the thread has registered an extrication interface, then - invoke the interface. If it returns 1, then we succeeded in - dequeuing the thread from whatever waiting object it was enqueued - with. In that case, it is our responsibility to wake it up. - And also to set the p_woken_by_cancel flag so the woken thread - can tell that it was woken by cancellation. */ - - if (pextricate != NULL) { - dorestart = pextricate->pu_extricate_func(pextricate->pu_object, th); - th->p_woken_by_cancel = dorestart; - } - - __pthread_unlock(&handle->h_lock); - - /* If the thread has suspended or is about to, then we unblock it by - issuing a restart, instead of a cancel signal. Otherwise we send - the cancel signal to unblock the thread from a cancellation point, - or to initiate asynchronous cancellation. The restart is needed so - we have proper accounting of restarts; suspend decrements the thread's - resume count, and restart() increments it. This also means that suspend's - handling of the cancel signal is obsolete. */ - - if (dorestart) - restart(th); - else - kill(pid, __pthread_sig_cancel); - - return 0; -} - -void pthread_testcancel(void) -{ - pthread_descr self = thread_self(); - if (THREAD_GETMEM(self, p_canceled) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE) - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); -} - -void _pthread_cleanup_push(struct _pthread_cleanup_buffer * buffer, - void (*routine)(void *), void * arg) -{ - pthread_descr self = thread_self(); - buffer->__routine = routine; - buffer->__arg = arg; - buffer->__prev = THREAD_GETMEM(self, p_cleanup); - if (buffer->__prev != NULL && FRAME_LEFT (buffer, buffer->__prev)) - buffer->__prev = NULL; - THREAD_SETMEM(self, p_cleanup, buffer); -} - -void _pthread_cleanup_pop(struct _pthread_cleanup_buffer * buffer, - int execute) -{ - pthread_descr self = thread_self(); - if (execute) buffer->__routine(buffer->__arg); - THREAD_SETMEM(self, p_cleanup, buffer->__prev); -} - -void _pthread_cleanup_push_defer(struct _pthread_cleanup_buffer * buffer, - void (*routine)(void *), void * arg) -{ - pthread_descr self = thread_self(); - buffer->__routine = routine; - buffer->__arg = arg; - buffer->__canceltype = THREAD_GETMEM(self, p_canceltype); - buffer->__prev = THREAD_GETMEM(self, p_cleanup); - if (buffer->__prev != NULL && FRAME_LEFT (buffer, buffer->__prev)) - buffer->__prev = NULL; - THREAD_SETMEM(self, p_canceltype, PTHREAD_CANCEL_DEFERRED); - THREAD_SETMEM(self, p_cleanup, buffer); -} - -void _pthread_cleanup_pop_restore(struct _pthread_cleanup_buffer * buffer, - int execute) -{ - pthread_descr self = thread_self(); - if (execute) buffer->__routine(buffer->__arg); - THREAD_SETMEM(self, p_cleanup, buffer->__prev); - THREAD_SETMEM(self, p_canceltype, buffer->__canceltype); - if (THREAD_GETMEM(self, p_canceled) && - THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE && - THREAD_GETMEM(self, p_canceltype) == PTHREAD_CANCEL_ASYNCHRONOUS) - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); -} - -void __pthread_perform_cleanup(char *currentframe) -{ - pthread_descr self = thread_self(); - struct _pthread_cleanup_buffer *c = THREAD_GETMEM(self, p_cleanup); - struct _pthread_cleanup_buffer *last; - - if (c != NULL) - while (FRAME_LEFT (currentframe, c)) - { - last = c; - c = c->__prev; - - if (c == NULL || FRAME_LEFT (last, c)) - { - c = NULL; - break; - } - } - - while (c != NULL) - { - c->__routine(c->__arg); - - last = c; - c = c->__prev; - - if (FRAME_LEFT (last, c)) - break; - } - - /* And the TSD which needs special help. */ - __libc_thread_freeres (); -} diff --git a/linuxthreads/condvar.c b/linuxthreads/condvar.c deleted file mode 100644 index 6ab95b88ae..0000000000 --- a/linuxthreads/condvar.c +++ /dev/null @@ -1,341 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* and Pavel Krauz (krauz@fsid.cvut.cz). */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Condition variables */ - -#include <errno.h> -#include <sched.h> -#include <stddef.h> -#include <sys/time.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "queue.h" -#include "restart.h" -#include <shlib-compat.h> - -int __pthread_cond_init(pthread_cond_t *cond, - const pthread_condattr_t *cond_attr) -{ - __pthread_init_lock(&cond->__c_lock); - cond->__c_waiting = NULL; - return 0; -} -versioned_symbol (libpthread, __pthread_cond_init, pthread_cond_init, - GLIBC_2_3_2); -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_init, __old_pthread_cond_init) -compat_symbol (libpthread, __old_pthread_cond_init, pthread_cond_init, - GLIBC_2_0); -#endif - -int __pthread_cond_destroy(pthread_cond_t *cond) -{ - if (cond->__c_waiting != NULL) return EBUSY; - return 0; -} -versioned_symbol (libpthread, __pthread_cond_destroy, pthread_cond_destroy, - GLIBC_2_3_2); -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_destroy, __old_pthread_cond_destroy) -compat_symbol (libpthread, __old_pthread_cond_destroy, pthread_cond_destroy, - GLIBC_2_0); -#endif - -/* Function called by pthread_cancel to remove the thread from - waiting on a condition variable queue. */ - -static int cond_extricate_func(void *obj, pthread_descr th) -{ - volatile pthread_descr self = thread_self(); - pthread_cond_t *cond = obj; - int did_remove = 0; - - __pthread_lock(&cond->__c_lock, self); - did_remove = remove_from_queue(&cond->__c_waiting, th); - __pthread_unlock(&cond->__c_lock); - - return did_remove; -} - -int __pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) -{ - volatile pthread_descr self = thread_self(); - pthread_extricate_if extr; - int already_canceled = 0; - int spurious_wakeup_count; - - /* Check whether the mutex is locked and owned by this thread. */ - if (mutex->__m_kind != PTHREAD_MUTEX_TIMED_NP - && mutex->__m_kind != PTHREAD_MUTEX_ADAPTIVE_NP - && mutex->__m_owner != self) - return EINVAL; - - /* Set up extrication interface */ - extr.pu_object = cond; - extr.pu_extricate_func = cond_extricate_func; - - /* Register extrication interface */ - THREAD_SETMEM(self, p_condvar_avail, 0); - __pthread_set_own_extricate_if(self, &extr); - - /* Atomically enqueue thread for waiting, but only if it is not - canceled. If the thread is canceled, then it will fall through the - suspend call below, and then call pthread_exit without - having to worry about whether it is still on the condition variable queue. - This depends on pthread_cancel setting p_canceled before calling the - extricate function. */ - - __pthread_lock(&cond->__c_lock, self); - if (!(THREAD_GETMEM(self, p_canceled) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE)) - enqueue(&cond->__c_waiting, self); - else - already_canceled = 1; - __pthread_unlock(&cond->__c_lock); - - if (already_canceled) { - __pthread_set_own_extricate_if(self, 0); - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - } - - pthread_mutex_unlock(mutex); - - spurious_wakeup_count = 0; - while (1) - { - suspend(self); - if (THREAD_GETMEM(self, p_condvar_avail) == 0 - && (THREAD_GETMEM(self, p_woken_by_cancel) == 0 - || THREAD_GETMEM(self, p_cancelstate) != PTHREAD_CANCEL_ENABLE)) - { - /* Count resumes that don't belong to us. */ - spurious_wakeup_count++; - continue; - } - break; - } - - __pthread_set_own_extricate_if(self, 0); - - /* Check for cancellation again, to provide correct cancellation - point behavior */ - - if (THREAD_GETMEM(self, p_woken_by_cancel) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE) { - THREAD_SETMEM(self, p_woken_by_cancel, 0); - pthread_mutex_lock(mutex); - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - } - - /* Put back any resumes we caught that don't belong to us. */ - while (spurious_wakeup_count--) - restart(self); - - pthread_mutex_lock(mutex); - return 0; -} -versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait, - GLIBC_2_3_2); -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_wait, __old_pthread_cond_wait) -compat_symbol (libpthread, __old_pthread_cond_wait, pthread_cond_wait, - GLIBC_2_0); -#endif - -static int -pthread_cond_timedwait_relative(pthread_cond_t *cond, - pthread_mutex_t *mutex, - const struct timespec * abstime) -{ - volatile pthread_descr self = thread_self(); - int already_canceled = 0; - pthread_extricate_if extr; - int spurious_wakeup_count; - - /* Check whether the mutex is locked and owned by this thread. */ - if (mutex->__m_kind != PTHREAD_MUTEX_TIMED_NP - && mutex->__m_kind != PTHREAD_MUTEX_ADAPTIVE_NP - && mutex->__m_owner != self) - return EINVAL; - - /* Set up extrication interface */ - extr.pu_object = cond; - extr.pu_extricate_func = cond_extricate_func; - - /* Register extrication interface */ - THREAD_SETMEM(self, p_condvar_avail, 0); - __pthread_set_own_extricate_if(self, &extr); - - /* Enqueue to wait on the condition and check for cancellation. */ - __pthread_lock(&cond->__c_lock, self); - if (!(THREAD_GETMEM(self, p_canceled) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE)) - enqueue(&cond->__c_waiting, self); - else - already_canceled = 1; - __pthread_unlock(&cond->__c_lock); - - if (already_canceled) { - __pthread_set_own_extricate_if(self, 0); - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - } - - pthread_mutex_unlock(mutex); - - spurious_wakeup_count = 0; - while (1) - { - if (!timedsuspend(self, abstime)) { - int was_on_queue; - - /* __pthread_lock will queue back any spurious restarts that - may happen to it. */ - - __pthread_lock(&cond->__c_lock, self); - was_on_queue = remove_from_queue(&cond->__c_waiting, self); - __pthread_unlock(&cond->__c_lock); - - if (was_on_queue) { - __pthread_set_own_extricate_if(self, 0); - pthread_mutex_lock(mutex); - return ETIMEDOUT; - } - - /* Eat the outstanding restart() from the signaller */ - suspend(self); - } - - if (THREAD_GETMEM(self, p_condvar_avail) == 0 - && (THREAD_GETMEM(self, p_woken_by_cancel) == 0 - || THREAD_GETMEM(self, p_cancelstate) != PTHREAD_CANCEL_ENABLE)) - { - /* Count resumes that don't belong to us. */ - spurious_wakeup_count++; - continue; - } - break; - } - - __pthread_set_own_extricate_if(self, 0); - - /* The remaining logic is the same as in other cancellable waits, - such as pthread_join sem_wait or pthread_cond wait. */ - - if (THREAD_GETMEM(self, p_woken_by_cancel) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE) { - THREAD_SETMEM(self, p_woken_by_cancel, 0); - pthread_mutex_lock(mutex); - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - } - - /* Put back any resumes we caught that don't belong to us. */ - while (spurious_wakeup_count--) - restart(self); - - pthread_mutex_lock(mutex); - return 0; -} - -int __pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, - const struct timespec * abstime) -{ - /* Indirect call through pointer! */ - return pthread_cond_timedwait_relative(cond, mutex, abstime); -} -versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, - GLIBC_2_3_2); -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_timedwait, __old_pthread_cond_timedwait) -compat_symbol (libpthread, __old_pthread_cond_timedwait, - pthread_cond_timedwait, GLIBC_2_0); -#endif - -int __pthread_cond_signal(pthread_cond_t *cond) -{ - pthread_descr th; - - __pthread_lock(&cond->__c_lock, NULL); - th = dequeue(&cond->__c_waiting); - __pthread_unlock(&cond->__c_lock); - if (th != NULL) { - th->p_condvar_avail = 1; - WRITE_MEMORY_BARRIER(); - restart(th); - } - return 0; -} -versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal, - GLIBC_2_3_2); -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_signal, __old_pthread_cond_signal) -compat_symbol (libpthread, __old_pthread_cond_signal, pthread_cond_signal, - GLIBC_2_0); -#endif - -int __pthread_cond_broadcast(pthread_cond_t *cond) -{ - pthread_descr tosignal, th; - - __pthread_lock(&cond->__c_lock, NULL); - /* Copy the current state of the waiting queue and empty it */ - tosignal = cond->__c_waiting; - cond->__c_waiting = NULL; - __pthread_unlock(&cond->__c_lock); - /* Now signal each process in the queue */ - while ((th = dequeue(&tosignal)) != NULL) { - th->p_condvar_avail = 1; - WRITE_MEMORY_BARRIER(); - restart(th); - } - return 0; -} -versioned_symbol (libpthread, __pthread_cond_broadcast, pthread_cond_broadcast, - GLIBC_2_3_2); -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_broadcast, __old_pthread_cond_broadcast) -compat_symbol (libpthread, __old_pthread_cond_broadcast, - pthread_cond_broadcast, GLIBC_2_0); -#endif - -int __pthread_condattr_init(pthread_condattr_t *attr) -{ - return 0; -} -strong_alias (__pthread_condattr_init, pthread_condattr_init) - -int __pthread_condattr_destroy(pthread_condattr_t *attr) -{ - return 0; -} -strong_alias (__pthread_condattr_destroy, pthread_condattr_destroy) - -int pthread_condattr_getpshared (const pthread_condattr_t *attr, int *pshared) -{ - *pshared = PTHREAD_PROCESS_PRIVATE; - return 0; -} - -int pthread_condattr_setpshared (pthread_condattr_t *attr, int pshared) -{ - if (pshared != PTHREAD_PROCESS_PRIVATE && pshared != PTHREAD_PROCESS_SHARED) - return EINVAL; - - /* For now it is not possible to shared a conditional variable. */ - if (pshared != PTHREAD_PROCESS_PRIVATE) - return ENOSYS; - - return 0; -} diff --git a/linuxthreads/configure b/linuxthreads/configure deleted file mode 100755 index 2624f9ec5a..0000000000 --- a/linuxthreads/configure +++ /dev/null @@ -1,17 +0,0 @@ -# This file is generated from configure.in by Autoconf. DO NOT EDIT! - -# LinuxThreads fragment for GNU C library configure mechanism. -# This is a shell script fragment sourced by the main configure script. - -for other in $add_ons; do - test $other = nptl || continue - if test $add_ons_automatic = yes; then - echo "$as_me:$LINENO: result: $libc_add_on disabled because $other add-on is also in use" >&5 -echo "${ECHO_T}$libc_add_on disabled because $other add-on is also in use" >&6 - libc_add_on= - else - { { echo "$as_me:$LINENO: error: cannot use both $libc_add_on and $other add-ons in one build" >&5 -echo "$as_me: error: cannot use both $libc_add_on and $other add-ons in one build" >&2;} - { (exit 1); exit 1; }; } - fi -done diff --git a/linuxthreads/configure.in b/linuxthreads/configure.in deleted file mode 100644 index 3f9904a411..0000000000 --- a/linuxthreads/configure.in +++ /dev/null @@ -1,14 +0,0 @@ -GLIBC_PROVIDES dnl See top-level configure.in. - -# LinuxThreads fragment for GNU C library configure mechanism. -# This is a shell script fragment sourced by the main configure script. - -for other in $add_ons; do - test $other = nptl || continue - if test $add_ons_automatic = yes; then - AC_MSG_RESULT($libc_add_on disabled because $other add-on is also in use) - libc_add_on= - else - AC_MSG_ERROR(cannot use both $libc_add_on and $other add-ons in one build) - fi -done diff --git a/linuxthreads/descr.h b/linuxthreads/descr.h deleted file mode 100644 index 2b1e49a0ba..0000000000 --- a/linuxthreads/descr.h +++ /dev/null @@ -1,267 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -#ifndef _DESCR_H -#define _DESCR_H 1 - -#define __need_res_state -#include <resolv.h> -#include <sched.h> -#include <setjmp.h> -#include <signal.h> -#include <stdint.h> -#include <sys/types.h> -#include <hp-timing.h> -#include <tls.h> - -/* Fast thread-specific data internal to libc. */ -enum __libc_tsd_key_t { _LIBC_TSD_KEY_MALLOC = 0, - _LIBC_TSD_KEY_DL_ERROR, - _LIBC_TSD_KEY_RPC_VARS, - _LIBC_TSD_KEY_LOCALE, - _LIBC_TSD_KEY_CTYPE_B, - _LIBC_TSD_KEY_CTYPE_TOLOWER, - _LIBC_TSD_KEY_CTYPE_TOUPPER, - _LIBC_TSD_KEY_N }; - -/* The type of thread descriptors */ -typedef struct _pthread_descr_struct *pthread_descr; - - -/* Some more includes. */ -#include <pt-machine.h> -#include <linuxthreads_db/thread_dbP.h> - - -/* Arguments passed to thread creation routine */ -struct pthread_start_args { - void *(*start_routine)(void *); /* function to run */ - void *arg; /* its argument */ - sigset_t mask; /* initial signal mask for thread */ - int schedpolicy; /* initial scheduling policy (if any) */ - struct sched_param schedparam; /* initial scheduling parameters (if any) */ -}; - - -/* Callback interface for removing the thread from waiting on an - object if it is cancelled while waiting or about to wait. - This hold a pointer to the object, and a pointer to a function - which ``extricates'' the thread from its enqueued state. - The function takes two arguments: pointer to the wait object, - and a pointer to the thread. It returns 1 if an extrication - actually occured, and hence the thread must also be signalled. - It returns 0 if the thread had already been extricated. */ -typedef struct _pthread_extricate_struct { - void *pu_object; - int (*pu_extricate_func)(void *, pthread_descr); -} pthread_extricate_if; - - -/* Atomic counter made possible by compare_and_swap */ -struct pthread_atomic { - long p_count; - int p_spinlock; -}; - - -/* Context info for read write locks. The pthread_rwlock_info structure - is information about a lock that has been read-locked by the thread - in whose list this structure appears. The pthread_rwlock_context - is embedded in the thread context and contains a pointer to the - head of the list of lock info structures, as well as a count of - read locks that are untracked, because no info structure could be - allocated for them. */ -struct _pthread_rwlock_t; -typedef struct _pthread_rwlock_info { - struct _pthread_rwlock_info *pr_next; - struct _pthread_rwlock_t *pr_lock; - int pr_lock_count; -} pthread_readlock_info; - - -/* We keep thread specific data in a special data structure, a two-level - array. The top-level array contains pointers to dynamically allocated - arrays of a certain number of data pointers. So we can implement a - sparse array. Each dynamic second-level array has - PTHREAD_KEY_2NDLEVEL_SIZE - entries. This value shouldn't be too large. */ -#define PTHREAD_KEY_2NDLEVEL_SIZE 32 - -/* We need to address PTHREAD_KEYS_MAX key with PTHREAD_KEY_2NDLEVEL_SIZE - keys in each subarray. */ -#define PTHREAD_KEY_1STLEVEL_SIZE \ - ((PTHREAD_KEYS_MAX + PTHREAD_KEY_2NDLEVEL_SIZE - 1) \ - / PTHREAD_KEY_2NDLEVEL_SIZE) - - -union dtv; - -struct _pthread_descr_struct -{ -#if !defined USE_TLS || !TLS_DTV_AT_TP - /* This overlaps tcbhead_t (see tls.h), as used for TLS without threads. */ - union - { - struct - { - void *tcb; /* Pointer to the TCB. This is not always - the address of this thread descriptor. */ - union dtv *dtvp; - pthread_descr self; /* Pointer to this structure */ - int multiple_threads; -# ifdef NEED_DL_SYSINFO - uintptr_t sysinfo; -# endif - } data; - void *__padding[16]; - } p_header; -# define p_multiple_threads p_header.data.multiple_threads -#elif TLS_MULTIPLE_THREADS_IN_TCB - int p_multiple_threads; -#endif - - pthread_descr p_nextlive, p_prevlive; - /* Double chaining of active threads */ - pthread_descr p_nextwaiting; /* Next element in the queue holding the thr */ - pthread_descr p_nextlock; /* can be on a queue and waiting on a lock */ - pthread_t p_tid; /* Thread identifier */ - int p_pid; /* PID of Unix process */ - int p_priority; /* Thread priority (== 0 if not realtime) */ - struct _pthread_fastlock * p_lock; /* Spinlock for synchronized accesses */ - int p_signal; /* last signal received */ - sigjmp_buf * p_signal_jmp; /* where to siglongjmp on a signal or NULL */ - sigjmp_buf * p_cancel_jmp; /* where to siglongjmp on a cancel or NULL */ - char p_terminated; /* true if terminated e.g. by pthread_exit */ - char p_detached; /* true if detached */ - char p_exited; /* true if the assoc. process terminated */ - void * p_retval; /* placeholder for return value */ - int p_retcode; /* placeholder for return code */ - pthread_descr p_joining; /* thread joining on that thread or NULL */ - struct _pthread_cleanup_buffer * p_cleanup; /* cleanup functions */ - char p_cancelstate; /* cancellation state */ - char p_canceltype; /* cancellation type (deferred/async) */ - char p_canceled; /* cancellation request pending */ - char * p_in_sighandler; /* stack address of sighandler, or NULL */ - char p_sigwaiting; /* true if a sigwait() is in progress */ - struct pthread_start_args p_start_args; /* arguments for thread creation */ - void ** p_specific[PTHREAD_KEY_1STLEVEL_SIZE]; /* thread-specific data */ -#if !(USE_TLS && HAVE___THREAD) - void * p_libc_specific[_LIBC_TSD_KEY_N]; /* thread-specific data for libc */ - int * p_errnop; /* pointer to used errno variable */ - int p_errno; /* error returned by last system call */ - int * p_h_errnop; /* pointer to used h_errno variable */ - int p_h_errno; /* error returned by last netdb function */ - struct __res_state *p_resp; /* Pointer to resolver state */ -#endif - struct __res_state p_res; /* per-thread resolver state */ - int p_userstack; /* nonzero if the user provided the stack */ - void *p_guardaddr; /* address of guard area or NULL */ - size_t p_guardsize; /* size of guard area */ - int p_nr; /* Index of descriptor in __pthread_handles */ - int p_report_events; /* Nonzero if events must be reported. */ - td_eventbuf_t p_eventbuf; /* Data for event. */ - struct pthread_atomic p_resume_count; /* number of times restart() was - called on thread */ - char p_woken_by_cancel; /* cancellation performed wakeup */ - char p_condvar_avail; /* flag if conditional variable became avail */ - char p_sem_avail; /* flag if semaphore became available */ - pthread_extricate_if *p_extricate; /* See above */ - pthread_readlock_info *p_readlock_list; /* List of readlock info structs */ - pthread_readlock_info *p_readlock_free; /* Free list of structs */ - int p_untracked_readlock_count; /* Readlocks not tracked by list */ - int p_inheritsched; /* copied from the thread attribute */ -#if HP_TIMING_AVAIL - hp_timing_t p_cpuclock_offset; /* Initial CPU clock for thread. */ -#endif -#ifdef USE_TLS - char *p_stackaddr; /* Stack address. */ -#endif - size_t p_alloca_cutoff; /* Maximum size which should be allocated - using alloca() instead of malloc(). */ - /* New elements must be added at the end. */ -} __attribute__ ((aligned(32))); /* We need to align the structure so that - doubles are aligned properly. This is 8 - bytes on MIPS and 16 bytes on MIPS64. - 32 bytes might give better cache - utilization. */ - - - -/* Limit between the stack of the initial thread (above) and the - stacks of other threads (below). Aligned on a STACK_SIZE boundary. - Initially 0, meaning that the current thread is (by definition) - the initial thread. */ - -extern char *__pthread_initial_thread_bos; - -/* Descriptor of the initial thread */ - -extern struct _pthread_descr_struct __pthread_initial_thread; - -/* Limits of the thread manager stack. */ - -extern char *__pthread_manager_thread_bos; -extern char *__pthread_manager_thread_tos; - -/* Descriptor of the manager thread */ - -extern struct _pthread_descr_struct __pthread_manager_thread; -extern pthread_descr __pthread_manager_threadp attribute_hidden; - -/* Indicate whether at least one thread has a user-defined stack (if 1), - or all threads have stacks supplied by LinuxThreads (if 0). */ - -extern int __pthread_nonstandard_stacks; - -/* The max size of the thread stack segments. If the default - THREAD_SELF implementation is used, this must be a power of two and - a multiple of PAGE_SIZE. */ -#ifndef STACK_SIZE -#define STACK_SIZE (2 * 1024 * 1024) -#endif - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#ifndef CURRENT_STACK_FRAME -#define CURRENT_STACK_FRAME ({ char __csf; &__csf; }) -#endif - -/* Recover thread descriptor for the current thread */ - -extern pthread_descr __pthread_find_self (void) __attribute__ ((pure)); - -static inline pthread_descr thread_self (void) __attribute__ ((pure)); -static inline pthread_descr thread_self (void) -{ -#ifdef THREAD_SELF - return THREAD_SELF; -#else - char *sp = CURRENT_STACK_FRAME; - if (sp >= __pthread_initial_thread_bos) - return &__pthread_initial_thread; - else if (sp >= __pthread_manager_thread_bos - && sp < __pthread_manager_thread_tos) - return &__pthread_manager_thread; - else if (__pthread_nonstandard_stacks) - return __pthread_find_self(); - else -#ifdef _STACK_GROWS_DOWN - return (pthread_descr)(((unsigned long)sp | (STACK_SIZE-1))+1) - 1; -#else - return (pthread_descr)((unsigned long)sp &~ (STACK_SIZE-1)); -#endif -#endif -} - -#endif /* descr.h */ diff --git a/linuxthreads/ecmutex.c b/linuxthreads/ecmutex.c deleted file mode 100644 index ce54ddf331..0000000000 --- a/linuxthreads/ecmutex.c +++ /dev/null @@ -1,157 +0,0 @@ -/* Test of the error checking mutex and incidently also barriers. */ - -#include <errno.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> - - -static pthread_mutex_t locks[] = -{ - PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP, - PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP, - PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP, - PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP, - PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP -}; -#define nlocks ((int) (sizeof (locks) / sizeof (locks[0]))) - -static pthread_barrier_t barrier; -#define SYNC pthread_barrier_wait (&barrier) - -#define NTHREADS nlocks - -#define ROUNDS 20 - - -static void * -worker (void *arg) -{ - /* We are locking the and unlocked the locks and check the errors. - Since we are using the error-checking variant the implementation - should report them. */ - int nr = (long int) arg; - int i; - void *result = NULL; - int retval; - - for (i = 0; i < ROUNDS; ++i) - { - /* Skip the rounds which would make other == own. */ - if (i % nlocks == 0) - continue; - - /* Get the "own" mutex. */ - if (pthread_mutex_trylock (&locks[nr]) != 0) - { - printf ("thread %d failed getting own mutex\n", nr); - result = (void *) 1; - } - - /* Try locking "own" mutex again. */ - retval = pthread_mutex_lock (&locks[nr]); - if (retval != EDEADLK) - { - printf ("thread %d failed getting own mutex\n", nr); - result = (void *) 1; - } - - /* Try to get a different semaphore. */ - SYNC; - retval = pthread_mutex_trylock (&locks[(nr + i) % nlocks]); - if (retval != EBUSY) - { - printf ("thread %d didn't deadlock on getting %d's lock\n", - nr, (nr + i) % nlocks); - result = (void *) 1; - } - - /* Try unlocking other's lock. */ - retval = pthread_mutex_unlock (&locks[(nr + i) % nlocks]); - if (retval != EPERM) - { - printf ("thread %d managed releasing mutex %d\n", - nr, (nr + i) % nlocks); - result = (void *) 1; - } - - /* All lock one mutex now. */ - SYNC; - retval = pthread_mutex_lock (&locks[i % nlocks]); - if (nr == (i % nlocks)) - { - if (retval != EDEADLK) - { - printf ("thread %d didn't deadlock on getting %d's lock\n", - nr, (nr + i) % nlocks); - result = (void *) 1; - } - if (pthread_mutex_unlock (&locks[i % nlocks]) != 0) - { - printf ("thread %d failed releasing own mutex\n", nr); - result = (void *) 1; - } - } - else - { - if (retval != 0) - { - printf ("thread %d failed acquiring mutex %d\n", - nr, i % nlocks); - result = (void *) 1; - } - else if (pthread_mutex_unlock (&locks[i % nlocks]) != 0) - { - printf ("thread %d failed releasing mutex %d\n", - nr, i % nlocks); - result = (void *) 1; - } - } - - /* Unlock the own lock. */ - SYNC; - if (nr != (i % nlocks) && pthread_mutex_unlock (&locks[nr]) != 0) - { - printf ("thread %d failed releasing own mutex\n", nr); - result = (void *) 1; - } - - /* Try unlocking again. */ - retval = pthread_mutex_unlock (&locks[nr]); - if (retval == 0) - { - printf ("thread %d managed releasing own mutex twice\n", nr); - result = (void *) 1; - } - } - - return result; -} - - -#define TEST_FUNCTION do_test () -static int -do_test (void) -{ - pthread_t threads[NTHREADS]; - int i; - void *res; - int result = 0; - - pthread_barrier_init (&barrier, NULL, NTHREADS); - - for (i = 0; i < NTHREADS; ++i) - if (pthread_create (&threads[i], NULL, worker, (void *) (long int) i) != 0) - { - printf ("failed to create thread %d: %m\n", i); - exit (1); - } - - for (i = 0; i < NTHREADS; ++i) - if (pthread_join (threads[i], &res) != 0 || res != NULL) - result = 1; - - return result; -} - -#include "../test-skeleton.c" diff --git a/linuxthreads/errno.c b/linuxthreads/errno.c deleted file mode 100644 index 5c0e8767a1..0000000000 --- a/linuxthreads/errno.c +++ /dev/null @@ -1,47 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Define the location of errno for the remainder of the C library */ - -#include <errno.h> -#include <netdb.h> -#include <resolv.h> -#include <tls.h> -#include "pthread.h" -#include "internals.h" - -#if !USE_TLS || !HAVE___THREAD -/* The definition in libc is sufficient if we use TLS. */ -int * -__errno_location (void) -{ - pthread_descr self = thread_self(); - return THREAD_GETMEM (self, p_errnop); -} - -int * -__h_errno_location (void) -{ - pthread_descr self = thread_self(); - return THREAD_GETMEM (self, p_h_errnop); -} - -/* Return thread specific resolver state. */ -struct __res_state * -__res_state (void) -{ - pthread_descr self = thread_self(); - return THREAD_GETMEM (self, p_resp); -} -#endif diff --git a/linuxthreads/events.c b/linuxthreads/events.c deleted file mode 100644 index b4ca3846e8..0000000000 --- a/linuxthreads/events.c +++ /dev/null @@ -1,37 +0,0 @@ -/* Event functions used while debugging. - Copyright (C) 1999, 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* The functions contained here do nothing, they just return. */ - -#include "internals.h" - -void -__linuxthreads_create_event (void) -{ -} - -void -__linuxthreads_death_event (void) -{ -} - -void -__linuxthreads_reap_event (void) -{ -} diff --git a/linuxthreads/forward.c b/linuxthreads/forward.c deleted file mode 100644 index b2a36d7d60..0000000000 --- a/linuxthreads/forward.c +++ /dev/null @@ -1,179 +0,0 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <dlfcn.h> -#include "internals.h" -#include <stdlib.h> - -#include <shlib-compat.h> - - -/* Pointers to the libc functions. */ -struct pthread_functions __libc_pthread_functions attribute_hidden; - - -# define FORWARD2(name, rettype, decl, params, defaction) \ -rettype \ -name decl \ -{ \ - if (__libc_pthread_functions.ptr_##name == NULL) \ - defaction; \ - \ - return __libc_pthread_functions.ptr_##name params; \ -} - -# define FORWARD(name, decl, params, defretval) \ - FORWARD2 (name, int, decl, params, return defretval) - -FORWARD (pthread_attr_destroy, (pthread_attr_t *attr), (attr), 0) - -#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_1) -FORWARD (__pthread_attr_init_2_0, (pthread_attr_t *attr), (attr), 0) -compat_symbol (libc, __pthread_attr_init_2_0, pthread_attr_init, GLIBC_2_0); -#endif - -FORWARD (__pthread_attr_init_2_1, (pthread_attr_t *attr), (attr), 0) -versioned_symbol (libc, __pthread_attr_init_2_1, pthread_attr_init, GLIBC_2_1); - -FORWARD (pthread_attr_getdetachstate, - (const pthread_attr_t *attr, int *detachstate), (attr, detachstate), - 0) -FORWARD (pthread_attr_setdetachstate, (pthread_attr_t *attr, int detachstate), - (attr, detachstate), 0) - -FORWARD (pthread_attr_getinheritsched, - (const pthread_attr_t *attr, int *inherit), (attr, inherit), 0) -FORWARD (pthread_attr_setinheritsched, (pthread_attr_t *attr, int inherit), - (attr, inherit), 0) - -FORWARD (pthread_attr_getschedparam, - (const pthread_attr_t *attr, struct sched_param *param), - (attr, param), 0) -FORWARD (pthread_attr_setschedparam, - (pthread_attr_t *attr, const struct sched_param *param), - (attr, param), 0) - -FORWARD (pthread_attr_getschedpolicy, - (const pthread_attr_t *attr, int *policy), (attr, policy), 0) -FORWARD (pthread_attr_setschedpolicy, (pthread_attr_t *attr, int policy), - (attr, policy), 0) - -FORWARD (pthread_attr_getscope, - (const pthread_attr_t *attr, int *scope), (attr, scope), 0) -FORWARD (pthread_attr_setscope, (pthread_attr_t *attr, int scope), - (attr, scope), 0) - - -FORWARD (pthread_condattr_destroy, (pthread_condattr_t *attr), (attr), 0) -FORWARD (pthread_condattr_init, (pthread_condattr_t *attr), (attr), 0) - - -FORWARD (__pthread_cond_broadcast, (pthread_cond_t *cond), (cond), 0) -#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_broadcast, __pthread_cond_broadcast_2_0) -compat_symbol (libc, __pthread_cond_broadcast_2_0, pthread_cond_broadcast, - GLIBC_2_0); -#endif -versioned_symbol (libc, __pthread_cond_broadcast, pthread_cond_broadcast, - GLIBC_2_3_2); - -FORWARD (__pthread_cond_destroy, (pthread_cond_t *cond), (cond), 0) -#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_destroy, __pthread_cond_destroy_2_0) -compat_symbol (libc, __pthread_cond_destroy_2_0, pthread_cond_destroy, - GLIBC_2_0); -#endif -versioned_symbol (libc, __pthread_cond_destroy, pthread_cond_destroy, - GLIBC_2_3_2); - -FORWARD (__pthread_cond_init, - (pthread_cond_t *cond, const pthread_condattr_t *cond_attr), - (cond, cond_attr), 0) -#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_init, __pthread_cond_init_2_0) -compat_symbol (libc, __pthread_cond_init_2_0, pthread_cond_init, GLIBC_2_0); -#endif -versioned_symbol (libc, __pthread_cond_init, pthread_cond_init, GLIBC_2_3_2); - -FORWARD (__pthread_cond_signal, (pthread_cond_t *cond), (cond), 0) -#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_signal, __pthread_cond_signal_2_0) -compat_symbol (libc, __pthread_cond_signal_2_0, pthread_cond_signal, - GLIBC_2_0); -#endif -versioned_symbol (libc, __pthread_cond_signal, pthread_cond_signal, - GLIBC_2_3_2); - -FORWARD (__pthread_cond_wait, (pthread_cond_t *cond, pthread_mutex_t *mutex), - (cond, mutex), 0) -#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_wait, __pthread_cond_wait_2_0) -compat_symbol (libc, __pthread_cond_wait_2_0, pthread_cond_wait, GLIBC_2_0); -#endif -versioned_symbol (libc, __pthread_cond_wait, pthread_cond_wait, GLIBC_2_3_2); - -FORWARD (__pthread_cond_timedwait, - (pthread_cond_t *cond, pthread_mutex_t *mutex, - const struct timespec *abstime), (cond, mutex, abstime), 0) -#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2) -strong_alias (__pthread_cond_timedwait, __pthread_cond_timedwait_2_0) -compat_symbol (libc, __pthread_cond_timedwait_2_0, pthread_cond_timedwait, GLIBC_2_0); -#endif -versioned_symbol (libc, __pthread_cond_timedwait, pthread_cond_timedwait, GLIBC_2_3_2); - - -FORWARD (pthread_equal, (pthread_t thread1, pthread_t thread2), - (thread1, thread2), 1) - - -/* Use an alias to avoid warning, as pthread_exit is declared noreturn. */ -FORWARD2 (__pthread_exit, void, (void *retval), (retval), exit (EXIT_SUCCESS)) -strong_alias (__pthread_exit, pthread_exit); - - -FORWARD (pthread_getschedparam, - (pthread_t target_thread, int *policy, struct sched_param *param), - (target_thread, policy, param), 0) -FORWARD (pthread_setschedparam, - (pthread_t target_thread, int policy, - const struct sched_param *param), (target_thread, policy, param), 0) - - -FORWARD (pthread_mutex_destroy, (pthread_mutex_t *mutex), (mutex), 0) - -FORWARD (pthread_mutex_init, - (pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr), - (mutex, mutexattr), 0) - -FORWARD (pthread_mutex_lock, (pthread_mutex_t *mutex), (mutex), 0) - -FORWARD (pthread_mutex_unlock, (pthread_mutex_t *mutex), (mutex), 0) - - -FORWARD2 (pthread_self, pthread_t, (void), (), return 0) - - -FORWARD (pthread_setcancelstate, (int state, int *oldstate), (state, oldstate), - 0) - -FORWARD (pthread_setcanceltype, (int type, int *oldtype), (type, oldtype), 0) - -FORWARD2 (_pthread_cleanup_push, void, (struct _pthread_cleanup_buffer * buffer, void (*routine)(void *), void * arg), (buffer, routine, arg), return) - -FORWARD2 (_pthread_cleanup_pop, void, (struct _pthread_cleanup_buffer * buffer, int execute), (buffer, execute), return) diff --git a/linuxthreads/internals.h b/linuxthreads/internals.h deleted file mode 100644 index 605021766c..0000000000 --- a/linuxthreads/internals.h +++ /dev/null @@ -1,550 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -#ifndef _INTERNALS_H -#define _INTERNALS_H 1 - -/* Internal data structures */ - -/* Includes */ - -#include <limits.h> -#include <signal.h> -#include <stdbool.h> -#include <unistd.h> -#include <stackinfo.h> -#include <sigcontextinfo.h> - -#include <tls.h> -#include "descr.h" - -#include "semaphore.h" -#include <pthread-functions.h> - -#ifndef THREAD_GETMEM -# define THREAD_GETMEM(descr, member) descr->member -#endif -#ifndef THREAD_GETMEM_NC -# define THREAD_GETMEM_NC(descr, member) descr->member -#endif -#ifndef THREAD_SETMEM -# define THREAD_SETMEM(descr, member, value) descr->member = (value) -#endif -#ifndef THREAD_SETMEM_NC -# define THREAD_SETMEM_NC(descr, member, value) descr->member = (value) -#endif - -#if !defined NOT_IN_libc && defined FLOATING_STACKS -# define LIBC_THREAD_GETMEM(descr, member) THREAD_GETMEM (descr, member) -# define LIBC_THREAD_SETMEM(descr, member, value) \ - THREAD_SETMEM (descr, member, value) -#else -# define LIBC_THREAD_GETMEM(descr, member) descr->member -# define LIBC_THREAD_SETMEM(descr, member, value) descr->member = (value) -#endif - -typedef void (*destr_function)(void *); - -struct pthread_key_struct { - int in_use; /* already allocated? */ - destr_function destr; /* destruction routine */ -}; - - -#define PTHREAD_START_ARGS_INITIALIZER(fct) \ - { (void *(*) (void *)) fct, NULL, {{0, }}, 0, { 0 } } - - -/* The type of thread handles. */ - -typedef struct pthread_handle_struct * pthread_handle; - -struct pthread_handle_struct { - struct _pthread_fastlock h_lock; /* Fast lock for sychronized access */ - pthread_descr h_descr; /* Thread descriptor or NULL if invalid */ - char * h_bottom; /* Lowest address in the stack thread */ -}; - -/* The type of messages sent to the thread manager thread */ - -struct pthread_request { - pthread_descr req_thread; /* Thread doing the request */ - enum { /* Request kind */ - REQ_CREATE, REQ_FREE, REQ_PROCESS_EXIT, REQ_MAIN_THREAD_EXIT, - REQ_POST, REQ_DEBUG, REQ_KICK, REQ_FOR_EACH_THREAD - } req_kind; - union { /* Arguments for request */ - struct { /* For REQ_CREATE: */ - const pthread_attr_t * attr; /* thread attributes */ - void * (*fn)(void *); /* start function */ - void * arg; /* argument to start function */ - sigset_t mask; /* signal mask */ - } create; - struct { /* For REQ_FREE: */ - pthread_t thread_id; /* identifier of thread to free */ - } free; - struct { /* For REQ_PROCESS_EXIT: */ - int code; /* exit status */ - } exit; - void * post; /* For REQ_POST: the semaphore */ - struct { /* For REQ_FOR_EACH_THREAD: callback */ - void (*fn)(void *, pthread_descr); - void *arg; - } for_each; - } req_args; -}; - - - -typedef void (*arch_sighandler_t) (int, SIGCONTEXT); -union sighandler -{ - arch_sighandler_t old; - void (*rt) (int, struct siginfo *, struct ucontext *); -}; -extern union sighandler __sighandler[NSIG]; - - -/* Signals used for suspend/restart and for cancellation notification. */ - -extern int __pthread_sig_restart; -extern int __pthread_sig_cancel; - -/* Signal used for interfacing with gdb */ - -extern int __pthread_sig_debug; - -/* Global array of thread handles, used for validating a thread id - and retrieving the corresponding thread descriptor. Also used for - mapping the available stack segments. */ - -extern struct pthread_handle_struct __pthread_handles[PTHREAD_THREADS_MAX]; - -/* Descriptor of the main thread */ - -extern pthread_descr __pthread_main_thread; - -/* File descriptor for sending requests to the thread manager. - Initially -1, meaning that __pthread_initialize_manager must be called. */ - -extern int __pthread_manager_request; - -/* Other end of the pipe for sending requests to the thread manager. */ - -extern int __pthread_manager_reader; - -#ifdef FLOATING_STACKS -/* Maximum stack size. */ -extern size_t __pthread_max_stacksize; -#endif - -/* Pending request for a process-wide exit */ - -extern int __pthread_exit_requested, __pthread_exit_code; - -/* Set to 1 by gdb if we're debugging */ - -extern volatile int __pthread_threads_debug; - -/* Globally enabled events. */ -extern volatile td_thr_events_t __pthread_threads_events; - -/* Pointer to descriptor of thread with last event. */ -extern volatile pthread_descr __pthread_last_event; - -/* Flag which tells whether we are executing on SMP kernel. */ -extern int __pthread_smp_kernel; - -/* Return the handle corresponding to a thread id */ - -static inline pthread_handle thread_handle(pthread_t id) -{ - return &__pthread_handles[id % PTHREAD_THREADS_MAX]; -} - -/* Validate a thread handle. Must have acquired h->h_spinlock before. */ - -static inline int invalid_handle(pthread_handle h, pthread_t id) -{ - return h->h_descr == NULL || h->h_descr->p_tid != id || h->h_descr->p_terminated; -} - -static inline int nonexisting_handle(pthread_handle h, pthread_t id) -{ - return h->h_descr == NULL || h->h_descr->p_tid != id; -} - -/* Fill in defaults left unspecified by pt-machine.h. */ - -/* We round up a value with page size. */ -#ifndef page_roundup -#define page_roundup(v,p) ((((size_t) (v)) + (p) - 1) & ~((p) - 1)) -#endif - -/* The page size we can get from the system. This should likely not be - changed by the machine file but, you never know. */ -#ifndef PAGE_SIZE -#define PAGE_SIZE (sysconf (_SC_PAGE_SIZE)) -#endif - -/* The initial size of the thread stack. Must be a multiple of PAGE_SIZE. */ -#ifndef INITIAL_STACK_SIZE -#define INITIAL_STACK_SIZE (4 * PAGE_SIZE) -#endif - -/* Size of the thread manager stack. The "- 32" avoids wasting space - with some malloc() implementations. */ -#ifndef THREAD_MANAGER_STACK_SIZE -#define THREAD_MANAGER_STACK_SIZE (2 * PAGE_SIZE - 32) -#endif - -/* The base of the "array" of thread stacks. The array will grow down from - here. Defaults to the calculated bottom of the initial application - stack. */ -#ifndef THREAD_STACK_START_ADDRESS -#define THREAD_STACK_START_ADDRESS __pthread_initial_thread_bos -#endif - -/* If MEMORY_BARRIER isn't defined in pt-machine.h, assume the - architecture doesn't need a memory barrier instruction (e.g. Intel - x86). Still we need the compiler to respect the barrier and emit - all outstanding operations which modify memory. Some architectures - distinguish between full, read and write barriers. */ - -#ifndef MEMORY_BARRIER -#define MEMORY_BARRIER() asm ("" : : : "memory") -#endif -#ifndef READ_MEMORY_BARRIER -#define READ_MEMORY_BARRIER() MEMORY_BARRIER() -#endif -#ifndef WRITE_MEMORY_BARRIER -#define WRITE_MEMORY_BARRIER() MEMORY_BARRIER() -#endif - -/* Max number of times we must spin on a spinlock calling sched_yield(). - After MAX_SPIN_COUNT iterations, we put the calling thread to sleep. */ - -#ifndef MAX_SPIN_COUNT -#define MAX_SPIN_COUNT 50 -#endif - -/* Max number of times the spinlock in the adaptive mutex implementation - spins actively on SMP systems. */ - -#ifndef MAX_ADAPTIVE_SPIN_COUNT -#define MAX_ADAPTIVE_SPIN_COUNT 100 -#endif - -/* Duration of sleep (in nanoseconds) when we can't acquire a spinlock - after MAX_SPIN_COUNT iterations of sched_yield(). - With the 2.0 and 2.1 kernels, this MUST BE > 2ms. - (Otherwise the kernel does busy-waiting for realtime threads, - giving other threads no chance to run.) */ - -#ifndef SPIN_SLEEP_DURATION -#define SPIN_SLEEP_DURATION 2000001 -#endif - -/* Defined and used in libc.so. */ -extern int __libc_multiple_threads attribute_hidden; -extern int __librt_multiple_threads; - -/* Debugging */ - -#ifdef DEBUG -#include <assert.h> -#define ASSERT assert -#define MSG __pthread_message -#else -#define ASSERT(x) -#define MSG(msg,arg...) -#endif - -/* Internal global functions */ - -extern void __pthread_do_exit (void *retval, char *currentframe) - __attribute__ ((__noreturn__)); -extern void __pthread_destroy_specifics (void); -extern void __pthread_perform_cleanup (char *currentframe); -extern void __pthread_init_max_stacksize (void); -extern int __pthread_initialize_manager (void); -extern void __pthread_message (const char * fmt, ...); -extern int __pthread_manager (void *reqfd); -extern int __pthread_manager_event (void *reqfd); -extern void __pthread_manager_sighandler (int sig); -extern void __pthread_reset_main_thread (void); -extern void __pthread_once_fork_prepare (void); -extern void __pthread_once_fork_parent (void); -extern void __pthread_once_fork_child (void); -extern void __flockfilelist (void); -extern void __funlockfilelist (void); -extern void __fresetlockfiles (void); -extern void __pthread_manager_adjust_prio (int thread_prio); -extern void __pthread_initialize_minimal (void); - -extern int __pthread_attr_setguardsize (pthread_attr_t *__attr, - size_t __guardsize); -extern int __pthread_attr_getguardsize (const pthread_attr_t *__attr, - size_t *__guardsize); -extern int __pthread_attr_setstackaddr (pthread_attr_t *__attr, - void *__stackaddr); -extern int __pthread_attr_getstackaddr (const pthread_attr_t *__attr, - void **__stackaddr); -extern int __pthread_attr_setstacksize (pthread_attr_t *__attr, - size_t __stacksize); -extern int __pthread_attr_getstacksize (const pthread_attr_t *__attr, - size_t *__stacksize); -extern int __pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr, - size_t __stacksize); -extern int __pthread_attr_getstack (const pthread_attr_t *__attr, void **__stackaddr, - size_t *__stacksize); -extern int __pthread_attr_destroy (pthread_attr_t *attr); -extern int __pthread_attr_setdetachstate (pthread_attr_t *attr, - int detachstate); -extern int __pthread_attr_getdetachstate (const pthread_attr_t *attr, - int *detachstate); -extern int __pthread_attr_setschedparam (pthread_attr_t *attr, - const struct sched_param *param); -extern int __pthread_attr_getschedparam (const pthread_attr_t *attr, - struct sched_param *param); -extern int __pthread_attr_setschedpolicy (pthread_attr_t *attr, int policy); -extern int __pthread_attr_getschedpolicy (const pthread_attr_t *attr, - int *policy); -extern int __pthread_attr_setinheritsched (pthread_attr_t *attr, int inherit); -extern int __pthread_attr_getinheritsched (const pthread_attr_t *attr, - int *inherit); -extern int __pthread_attr_setscope (pthread_attr_t *attr, int scope); -extern int __pthread_attr_getscope (const pthread_attr_t *attr, int *scope); - -extern int __pthread_getconcurrency (void); -extern int __pthread_setconcurrency (int __level); -extern int __pthread_mutex_timedlock (pthread_mutex_t *__mutex, - const struct timespec *__abstime); -extern int __pthread_mutexattr_getpshared (const pthread_mutexattr_t *__attr, - int *__pshared); -extern int __pthread_mutexattr_setpshared (pthread_mutexattr_t *__attr, - int __pshared); -extern int __pthread_mutexattr_gettype (const pthread_mutexattr_t *__attr, - int *__kind); -extern void __pthread_kill_other_threads_np (void); -extern int __pthread_mutex_init (pthread_mutex_t *__mutex, - __const pthread_mutexattr_t *__mutex_attr); -extern int __pthread_mutex_destroy (pthread_mutex_t *__mutex); -extern int __pthread_mutex_lock (pthread_mutex_t *__mutex); -extern int __pthread_mutex_trylock (pthread_mutex_t *__mutex); -extern int __pthread_mutex_unlock (pthread_mutex_t *__mutex); -#if defined NOT_IN_libc && defined IS_IN_libpthread -hidden_proto (__pthread_mutex_init) -hidden_proto (__pthread_mutex_destroy) -hidden_proto (__pthread_mutex_lock) -hidden_proto (__pthread_mutex_trylock) -hidden_proto (__pthread_mutex_unlock) -#endif -extern int __pthread_cond_init (pthread_cond_t *cond, - const pthread_condattr_t *cond_attr); -extern int __pthread_cond_destroy (pthread_cond_t *cond); -extern int __pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex); -extern int __pthread_cond_timedwait (pthread_cond_t *cond, - pthread_mutex_t *mutex, - const struct timespec *abstime); -extern int __pthread_cond_signal (pthread_cond_t *cond); -extern int __pthread_cond_broadcast (pthread_cond_t *cond); -extern int __pthread_condattr_init (pthread_condattr_t *attr); -extern int __pthread_condattr_destroy (pthread_condattr_t *attr); -extern pthread_t __pthread_self (void); -extern pthread_descr __pthread_thread_self (void); -extern pthread_descr __pthread_self_stack (void) attribute_hidden; -extern int __pthread_equal (pthread_t thread1, pthread_t thread2); -extern void __pthread_exit (void *retval); -extern int __pthread_getschedparam (pthread_t thread, int *policy, - struct sched_param *param); -extern int __pthread_setschedparam (pthread_t thread, int policy, - const struct sched_param *param); -extern int __pthread_setcancelstate (int state, int * oldstate); -extern int __pthread_setcanceltype (int type, int * oldtype); - -extern void __pthread_restart_old(pthread_descr th); -extern void __pthread_suspend_old(pthread_descr self); -extern int __pthread_timedsuspend_old(pthread_descr self, const struct timespec *abs); - -extern void __pthread_restart_new(pthread_descr th); -extern void __pthread_suspend_new(pthread_descr self); -extern int __pthread_timedsuspend_new(pthread_descr self, const struct timespec *abs); - -extern void __pthread_wait_for_restart_signal(pthread_descr self); - -extern void __pthread_sigsuspend (const sigset_t *mask) attribute_hidden; - -extern int __pthread_yield (void); - -extern int __pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock, - __const struct timespec *__restrict - __abstime); -extern int __pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock, - __const struct timespec *__restrict - __abstime); -extern int __pthread_rwlockattr_destroy (pthread_rwlockattr_t *__attr); - -extern int __pthread_barrierattr_getpshared (__const pthread_barrierattr_t * - __restrict __attr, - int *__restrict __pshared); - -extern int __pthread_spin_lock (pthread_spinlock_t *__lock); -extern int __pthread_spin_trylock (pthread_spinlock_t *__lock); -extern int __pthread_spin_unlock (pthread_spinlock_t *__lock); -extern int __pthread_spin_init (pthread_spinlock_t *__lock, int __pshared); -extern int __pthread_spin_destroy (pthread_spinlock_t *__lock); - -/* Global pointers to old or new suspend functions */ - -extern void (*__pthread_restart)(pthread_descr); -extern void (*__pthread_suspend)(pthread_descr); -extern int (*__pthread_timedsuspend)(pthread_descr, const struct timespec *); - -/* Prototypes for the function without cancelation support when the - normal version has it. */ -extern int __libc_close (int fd); -extern int __libc_nanosleep (const struct timespec *requested_time, - struct timespec *remaining); -/* Prototypes for some of the new semaphore functions. */ -extern int __new_sem_post (sem_t * sem); -extern int __new_sem_init (sem_t *__sem, int __pshared, unsigned int __value); -extern int __new_sem_wait (sem_t *__sem); -extern int __new_sem_trywait (sem_t *__sem); -extern int __new_sem_getvalue (sem_t *__restrict __sem, int *__restrict __sval); -extern int __new_sem_destroy (sem_t *__sem); - -/* Prototypes for compatibility functions. */ -extern int __pthread_attr_init_2_1 (pthread_attr_t *__attr); -extern int __pthread_attr_init_2_0 (pthread_attr_t *__attr); -extern int __pthread_create_2_1 (pthread_t *__restrict __threadp, - const pthread_attr_t *__attr, - void *(*__start_routine) (void *), - void *__restrict __arg); -extern int __pthread_create_2_0 (pthread_t *__restrict thread, - const pthread_attr_t *__attr, - void *(*__start_routine) (void *), - void *__restrict arg); - -/* The functions called the signal events. */ -extern void __linuxthreads_create_event (void); -extern void __linuxthreads_death_event (void); -extern void __linuxthreads_reap_event (void); - -/* This function is called to initialize the pthread library. */ -extern void __pthread_initialize (void); - -/* TSD. */ -extern int __pthread_internal_tsd_set (int key, const void * pointer); -extern void * __pthread_internal_tsd_get (int key); -extern void ** __attribute__ ((__const__)) - __pthread_internal_tsd_address (int key); - -/* Sighandler wrappers. */ -extern void __pthread_sighandler(int signo, SIGCONTEXT ctx); -extern void __pthread_sighandler_rt(int signo, struct siginfo *si, - struct ucontext *uc); -extern void __pthread_null_sighandler(int sig); -extern int __pthread_sigaction (int sig, const struct sigaction *act, - struct sigaction *oact); -extern int __pthread_sigwait (const sigset_t *set, int *sig); -extern int __pthread_raise (int sig); - -/* Cancellation. */ -extern int __pthread_enable_asynccancel (void) attribute_hidden; -extern void __pthread_disable_asynccancel (int oldtype) - internal_function attribute_hidden; - -/* The two functions are in libc.so and not exported. */ -extern int __libc_enable_asynccancel (void) attribute_hidden; -extern void __libc_disable_asynccancel (int oldtype) - internal_function attribute_hidden; - -/* The two functions are in libc.so and are exported. */ -extern int __librt_enable_asynccancel (void); -extern void __librt_disable_asynccancel (int oldtype) internal_function; - -extern void __pthread_cleanup_upto (__jmp_buf target, - char *targetframe) attribute_hidden; -extern pid_t __pthread_fork (struct fork_block *b) attribute_hidden; - -#if !defined NOT_IN_libc -# define LIBC_CANCEL_ASYNC() \ - __libc_enable_asynccancel () -# define LIBC_CANCEL_RESET(oldtype) \ - __libc_disable_asynccancel (oldtype) -# define LIBC_CANCEL_HANDLED() \ - __asm (".globl " __SYMBOL_PREFIX "__libc_enable_asynccancel"); \ - __asm (".globl " __SYMBOL_PREFIX "__libc_disable_asynccancel") -#elif defined IS_IN_libpthread -# define LIBC_CANCEL_ASYNC() \ - __pthread_enable_asynccancel () -# define LIBC_CANCEL_RESET(oldtype) \ - __pthread_disable_asynccancel (oldtype) -# define LIBC_CANCEL_HANDLED() \ - __asm (".globl " __SYMBOL_PREFIX "__pthread_enable_asynccancel"); \ - __asm (".globl " __SYMBOL_PREFIX "__pthread_disable_asynccancel") -#elif defined IS_IN_librt -# define LIBC_CANCEL_ASYNC() \ - __librt_enable_asynccancel () -# define LIBC_CANCEL_RESET(oldtype) \ - __librt_disable_asynccancel (oldtype) -# define LIBC_CANCEL_HANDLED() \ - __asm (".globl " __SYMBOL_PREFIX "__librt_enable_asynccancel"); \ - __asm (".globl " __SYMBOL_PREFIX "__librt_disable_asynccancel") -#else -# define LIBC_CANCEL_ASYNC() 0 /* Just a dummy value. */ -# define LIBC_CANCEL_RESET(val) ((void)(val)) /* Nothing, but evaluate it. */ -# define LIBC_CANCEL_HANDLED() /* Nothing. */ -#endif - -extern int * __libc_pthread_init (const struct pthread_functions *functions); - -#if !defined NOT_IN_libc && !defined FLOATING_STACKS -# ifdef SHARED -# define thread_self() \ - (*__libc_pthread_functions.ptr_pthread_thread_self) () -# else -weak_extern (__pthread_thread_self) -# define thread_self() __pthread_thread_self () -# endif -#endif - -#ifndef USE_TLS -# define __manager_thread (&__pthread_manager_thread) -#else -# define __manager_thread __pthread_manager_threadp -#endif - -extern inline __attribute__((always_inline)) pthread_descr -check_thread_self (void) -{ - pthread_descr self = thread_self (); -#if defined THREAD_SELF && defined INIT_THREAD_SELF - if (self == __manager_thread) - { - /* A new thread might get a cancel signal before it is fully - initialized, so that the thread register might still point to the - manager thread. Double check that this is really the manager - thread. */ - self = __pthread_self_stack(); - if (self != __manager_thread) - /* Oops, thread_self() isn't working yet.. */ - INIT_THREAD_SELF(self, self->p_nr); - } -#endif - return self; -} - -#endif /* internals.h */ diff --git a/linuxthreads/join.c b/linuxthreads/join.c deleted file mode 100644 index 148f222319..0000000000 --- a/linuxthreads/join.c +++ /dev/null @@ -1,220 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Thread termination and joining */ - -#include <errno.h> -#include <sched.h> -#include <stdlib.h> -#include <unistd.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "restart.h" -#include <not-cancel.h> - -void __pthread_exit(void * retval) -{ - __pthread_do_exit (retval, CURRENT_STACK_FRAME); -} -strong_alias (__pthread_exit, pthread_exit); - -void __pthread_do_exit(void *retval, char *currentframe) -{ - pthread_descr self = thread_self(); - pthread_descr joining; - struct pthread_request request; - - /* Reset the cancellation flag to avoid looping if the cleanup handlers - contain cancellation points */ - THREAD_SETMEM(self, p_canceled, 0); - /* Call cleanup functions and destroy the thread-specific data */ - __pthread_perform_cleanup(currentframe); - __pthread_destroy_specifics(); - /* Store return value */ - __pthread_lock(THREAD_GETMEM(self, p_lock), self); - THREAD_SETMEM(self, p_retval, retval); - /* See whether we have to signal the death. */ - if (THREAD_GETMEM(self, p_report_events)) - { - /* See whether TD_DEATH is in any of the mask. */ - int idx = __td_eventword (TD_DEATH); - uint32_t mask = __td_eventmask (TD_DEATH); - - if ((mask & (__pthread_threads_events.event_bits[idx] - | THREAD_GETMEM_NC(self, - p_eventbuf.eventmask.event_bits[idx]))) - != 0) - { - /* Yep, we have to signal the death. */ - THREAD_SETMEM(self, p_eventbuf.eventnum, TD_DEATH); - THREAD_SETMEM(self, p_eventbuf.eventdata, self); - __pthread_last_event = self; - - /* Now call the function to signal the event. */ - __linuxthreads_death_event(); - } - } - /* Say that we've terminated */ - THREAD_SETMEM(self, p_terminated, 1); - /* See if someone is joining on us */ - joining = THREAD_GETMEM(self, p_joining); - __pthread_unlock(THREAD_GETMEM(self, p_lock)); - /* Restart joining thread if any */ - if (joining != NULL) restart(joining); - /* If this is the initial thread, block until all threads have terminated. - If another thread calls exit, we'll be terminated from our signal - handler. */ - if (self == __pthread_main_thread && __pthread_manager_request >= 0) { - request.req_thread = self; - request.req_kind = REQ_MAIN_THREAD_EXIT; - TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request, - (char *)&request, sizeof(request))); - suspend(self); - /* Main thread flushes stdio streams and runs atexit functions. - It also calls a handler within LinuxThreads which sends a process exit - request to the thread manager. */ - exit(0); - } - /* Threads other than the main one terminate without flushing stdio streams - or running atexit functions. */ - _exit(0); -} - -/* Function called by pthread_cancel to remove the thread from - waiting on a condition variable queue. */ - -static int join_extricate_func(void *obj, pthread_descr th) -{ - volatile pthread_descr self = thread_self(); - pthread_handle handle = obj; - pthread_descr jo; - int did_remove = 0; - - __pthread_lock(&handle->h_lock, self); - jo = handle->h_descr; - did_remove = jo->p_joining != NULL; - jo->p_joining = NULL; - __pthread_unlock(&handle->h_lock); - - return did_remove; -} - -int pthread_join(pthread_t thread_id, void ** thread_return) -{ - volatile pthread_descr self = thread_self(); - struct pthread_request request; - pthread_handle handle = thread_handle(thread_id); - pthread_descr th; - pthread_extricate_if extr; - int already_canceled = 0; - - /* Set up extrication interface */ - extr.pu_object = handle; - extr.pu_extricate_func = join_extricate_func; - - __pthread_lock(&handle->h_lock, self); - if (nonexisting_handle(handle, thread_id)) { - __pthread_unlock(&handle->h_lock); - return ESRCH; - } - th = handle->h_descr; - if (th == self) { - __pthread_unlock(&handle->h_lock); - return EDEADLK; - } - /* If detached or already joined, error */ - if (th->p_detached || th->p_joining != NULL) { - __pthread_unlock(&handle->h_lock); - return EINVAL; - } - /* If not terminated yet, suspend ourselves. */ - if (! th->p_terminated) { - /* Register extrication interface */ - __pthread_set_own_extricate_if(self, &extr); - if (!(THREAD_GETMEM(self, p_canceled) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE)) - th->p_joining = self; - else - already_canceled = 1; - __pthread_unlock(&handle->h_lock); - - if (already_canceled) { - __pthread_set_own_extricate_if(self, 0); - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - } - - suspend(self); - /* Deregister extrication interface */ - __pthread_set_own_extricate_if(self, 0); - - /* This is a cancellation point */ - if (THREAD_GETMEM(self, p_woken_by_cancel) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE) { - THREAD_SETMEM(self, p_woken_by_cancel, 0); - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - } - __pthread_lock(&handle->h_lock, self); - } - /* Get return value */ - if (thread_return != NULL) *thread_return = th->p_retval; - __pthread_unlock(&handle->h_lock); - /* Send notification to thread manager */ - if (__pthread_manager_request >= 0) { - request.req_thread = self; - request.req_kind = REQ_FREE; - request.req_args.free.thread_id = thread_id; - TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request, - (char *) &request, sizeof(request))); - } - return 0; -} - -int pthread_detach(pthread_t thread_id) -{ - int terminated; - struct pthread_request request; - pthread_handle handle = thread_handle(thread_id); - pthread_descr th; - - __pthread_lock(&handle->h_lock, NULL); - if (nonexisting_handle(handle, thread_id)) { - __pthread_unlock(&handle->h_lock); - return ESRCH; - } - th = handle->h_descr; - /* If already detached, error */ - if (th->p_detached) { - __pthread_unlock(&handle->h_lock); - return EINVAL; - } - /* If already joining, don't do anything. */ - if (th->p_joining != NULL) { - __pthread_unlock(&handle->h_lock); - return 0; - } - /* Mark as detached */ - th->p_detached = 1; - terminated = th->p_terminated; - __pthread_unlock(&handle->h_lock); - /* If already terminated, notify thread manager to reclaim resources */ - if (terminated && __pthread_manager_request >= 0) { - request.req_thread = thread_self(); - request.req_kind = REQ_FREE; - request.req_args.free.thread_id = thread_id; - TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request, - (char *) &request, sizeof(request))); - } - return 0; -} diff --git a/linuxthreads/joinrace.c b/linuxthreads/joinrace.c deleted file mode 100644 index 8e1064c984..0000000000 --- a/linuxthreads/joinrace.c +++ /dev/null @@ -1,48 +0,0 @@ -/* Test case by Permaine Cheung <pcheung@cygnus.com>. */ - -#include <errno.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> - -static void * -sub1 (void *arg) -{ - /* Nothing. */ - return NULL; -} - -int -main (void) -{ - int istatus; - int policy; - int cnt; - pthread_t thread1; - struct sched_param spresult1, sp1; - - for (cnt = 0; cnt < 100; ++cnt) - { - printf ("Round %d\n", cnt); - - pthread_create (&thread1, NULL, &sub1, NULL); - pthread_join (thread1, NULL); - - istatus = pthread_getschedparam (thread1, &policy, &spresult1); - if (istatus != ESRCH) - { - printf ("pthread_getschedparam returns: %d\n", istatus); - return 1; - } - - sp1.sched_priority = 0; - istatus = pthread_setschedparam (thread1, SCHED_OTHER, &sp1); - if (istatus != ESRCH) - { - printf ("pthread_setschedparam returns: %d\n", istatus); - return 2; - } - } - - return 0; -} diff --git a/linuxthreads/libc-cancellation.c b/linuxthreads/libc-cancellation.c deleted file mode 100644 index c28920feb3..0000000000 --- a/linuxthreads/libc-cancellation.c +++ /dev/null @@ -1,64 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <rpc/rpc.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "restart.h" -#include <bits/libc-lock.h> - -#if !defined NOT_IN_libc - -# ifndef SHARED -weak_extern (__pthread_do_exit) -# endif - -int __libc_multiple_threads attribute_hidden __attribute__((nocommon)); -strong_alias (__libc_multiple_threads, __librt_multiple_threads); - -/* The next two functions are similar to pthread_setcanceltype() but - more specialized for the use in the cancelable functions like write(). - They do not need to check parameters etc. */ -int -attribute_hidden -__libc_enable_asynccancel (void) -{ - pthread_descr self = thread_self(); - int oldtype = LIBC_THREAD_GETMEM(self, p_canceltype); - LIBC_THREAD_SETMEM(self, p_canceltype, PTHREAD_CANCEL_ASYNCHRONOUS); - if (__builtin_expect (LIBC_THREAD_GETMEM(self, p_canceled), 0) && - LIBC_THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE) - __libc_maybe_call2 (pthread_do_exit, - (PTHREAD_CANCELED, CURRENT_STACK_FRAME), 0); - return oldtype; -} -strong_alias (__libc_enable_asynccancel, __librt_enable_asynccancel) - -void -internal_function attribute_hidden -__libc_disable_asynccancel (int oldtype) -{ - pthread_descr self = thread_self(); - LIBC_THREAD_SETMEM(self, p_canceltype, oldtype); -} -strong_alias (__libc_disable_asynccancel, __librt_disable_asynccancel) - -#endif diff --git a/linuxthreads/libc-tls-loc.c b/linuxthreads/libc-tls-loc.c deleted file mode 100644 index a0a4b1b07d..0000000000 --- a/linuxthreads/libc-tls-loc.c +++ /dev/null @@ -1,49 +0,0 @@ -/* Special definitions for libc's own exposed thread-specific variables. - Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <tls.h> - -#if USE___THREAD -# include <errno.h> -# include <netdb.h> -# include <resolv.h> - -/* These functions have identical definitions in libc. But the versioned - dependencies in executables bind them to libpthread.so definitions, - so we must have some here. */ - -int * -__errno_location (void) -{ - return &errno; -} - -int * -__h_errno_location (void) -{ - return &h_errno; -} - -struct __res_state * -__res_state (void) -{ - return __resp; -} - -#endif diff --git a/linuxthreads/libc-tsd.c b/linuxthreads/libc-tsd.c deleted file mode 100644 index 353ffb380a..0000000000 --- a/linuxthreads/libc-tsd.c +++ /dev/null @@ -1,41 +0,0 @@ -/* Special hack used to build link-time libc.so object for linking libpthread. - Copyright (C) 2002, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <tls.h> -#include <resolv.h> - -#if ! USE___THREAD - -/* Special hack used to build link-time libc.so object for linking libpthread. - See Makefile comments near libc_pic_lite.os rule for what this is for. */ - -# undef _res - -int _errno; -int _h_errno; -struct __res_state _res; - -#endif - -int -__res_maybe_init (res_state resp, int preinit) -{ - return -1; -} -libc_hidden_def (__res_maybe_init) diff --git a/linuxthreads/libc_pthread_init.c b/linuxthreads/libc_pthread_init.c deleted file mode 100644 index 99213a2ff0..0000000000 --- a/linuxthreads/libc_pthread_init.c +++ /dev/null @@ -1,46 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <locale.h> -#include <stdlib.h> -#include <string.h> -#include <tls.h> -#include "internals.h" -#include <sysdep-cancel.h> - -int * -__libc_pthread_init (functions) - const struct pthread_functions *functions; -{ -#ifdef SHARED - /* We copy the content of the variable pointed to by the FUNCTIONS - parameter to one in libc.so since this means access to the array - can be done with one memory access instead of two. */ - memcpy (&__libc_pthread_functions, functions, - sizeof (__libc_pthread_functions)); -#endif - -#if !(USE_TLS && HAVE___THREAD) - /* Initialize thread-locale current locale to point to the global one. - With __thread support, the variable's initializer takes care of this. */ - __uselocale (LC_GLOBAL_LOCALE); -#endif - - return &__libc_multiple_threads; -} diff --git a/linuxthreads/linuxthreads.texi b/linuxthreads/linuxthreads.texi deleted file mode 100644 index 795fb70977..0000000000 --- a/linuxthreads/linuxthreads.texi +++ /dev/null @@ -1,1627 +0,0 @@ -@node POSIX Threads -@c @node POSIX Threads, , Top, Top -@chapter POSIX Threads -@c %MENU% The standard threads library - -@c This chapter needs more work bigtime. -zw - -This chapter describes the pthreads (POSIX threads) library. This -library provides support functions for multithreaded programs: thread -primitives, synchronization objects, and so forth. It also implements -POSIX 1003.1b semaphores (not to be confused with System V semaphores). - -The threads operations (@samp{pthread_*}) do not use @var{errno}. -Instead they return an error code directly. The semaphore operations do -use @var{errno}. - -@menu -* Basic Thread Operations:: Creating, terminating, and waiting for threads. -* Thread Attributes:: Tuning thread scheduling. -* Cancellation:: Stopping a thread before it's done. -* Cleanup Handlers:: Deallocating resources when a thread is - canceled. -* Mutexes:: One way to synchronize threads. -* Condition Variables:: Another way. -* POSIX Semaphores:: And a third way. -* Thread-Specific Data:: Variables with different values in - different threads. -* Threads and Signal Handling:: Why you should avoid mixing the two, and - how to do it if you must. -* Threads and Fork:: Interactions between threads and the - @code{fork} function. -* Streams and Fork:: Interactions between stdio streams and - @code{fork}. -* Miscellaneous Thread Functions:: A grab bag of utility routines. -@end menu - -@node Basic Thread Operations -@section Basic Thread Operations - -These functions are the thread equivalents of @code{fork}, @code{exit}, -and @code{wait}. - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_create (pthread_t * @var{thread}, pthread_attr_t * @var{attr}, void * (*@var{start_routine})(void *), void * @var{arg}) -@code{pthread_create} creates a new thread of control that executes -concurrently with the calling thread. The new thread calls the -function @var{start_routine}, passing it @var{arg} as first argument. The -new thread terminates either explicitly, by calling @code{pthread_exit}, -or implicitly, by returning from the @var{start_routine} function. The -latter case is equivalent to calling @code{pthread_exit} with the result -returned by @var{start_routine} as exit code. - -The @var{attr} argument specifies thread attributes to be applied to the -new thread. @xref{Thread Attributes}, for details. The @var{attr} -argument can also be @code{NULL}, in which case default attributes are -used: the created thread is joinable (not detached) and has an ordinary -(not realtime) scheduling policy. - -On success, the identifier of the newly created thread is stored in the -location pointed by the @var{thread} argument, and a 0 is returned. On -error, a non-zero error code is returned. - -This function may return the following errors: -@table @code -@item EAGAIN -Not enough system resources to create a process for the new thread, -or more than @code{PTHREAD_THREADS_MAX} threads are already active. -@end table -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun void pthread_exit (void *@var{retval}) -@code{pthread_exit} terminates the execution of the calling thread. All -cleanup handlers (@pxref{Cleanup Handlers}) that have been set for the -calling thread with @code{pthread_cleanup_push} are executed in reverse -order (the most recently pushed handler is executed first). Finalization -functions for thread-specific data are then called for all keys that -have non-@code{NULL} values associated with them in the calling thread -(@pxref{Thread-Specific Data}). Finally, execution of the calling -thread is stopped. - -The @var{retval} argument is the return value of the thread. It can be -retrieved from another thread using @code{pthread_join}. - -The @code{pthread_exit} function never returns. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_cancel (pthread_t @var{thread}) - -@code{pthread_cancel} sends a cancellation request to the thread denoted -by the @var{thread} argument. If there is no such thread, -@code{pthread_cancel} fails and returns @code{ESRCH}. Otherwise it -returns 0. @xref{Cancellation}, for details. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_join (pthread_t @var{th}, void **thread_@var{return}) -@code{pthread_join} suspends the execution of the calling thread until -the thread identified by @var{th} terminates, either by calling -@code{pthread_exit} or by being canceled. - -If @var{thread_return} is not @code{NULL}, the return value of @var{th} -is stored in the location pointed to by @var{thread_return}. The return -value of @var{th} is either the argument it gave to @code{pthread_exit}, -or @code{PTHREAD_CANCELED} if @var{th} was canceled. - -The joined thread @code{th} must be in the joinable state: it must not -have been detached using @code{pthread_detach} or the -@code{PTHREAD_CREATE_DETACHED} attribute to @code{pthread_create}. - -When a joinable thread terminates, its memory resources (thread -descriptor and stack) are not deallocated until another thread performs -@code{pthread_join} on it. Therefore, @code{pthread_join} must be called -once for each joinable thread created to avoid memory leaks. - -At most one thread can wait for the termination of a given -thread. Calling @code{pthread_join} on a thread @var{th} on which -another thread is already waiting for termination returns an error. - -@code{pthread_join} is a cancellation point. If a thread is canceled -while suspended in @code{pthread_join}, the thread execution resumes -immediately and the cancellation is executed without waiting for the -@var{th} thread to terminate. If cancellation occurs during -@code{pthread_join}, the @var{th} thread remains not joined. - -On success, the return value of @var{th} is stored in the location -pointed to by @var{thread_return}, and 0 is returned. On error, one of -the following values is returned: -@table @code -@item ESRCH -No thread could be found corresponding to that specified by @var{th}. -@item EINVAL -The @var{th} thread has been detached, or another thread is already -waiting on termination of @var{th}. -@item EDEADLK -The @var{th} argument refers to the calling thread. -@end table -@end deftypefun - -@node Thread Attributes -@section Thread Attributes - -@comment pthread.h -@comment POSIX - -Threads have a number of attributes that may be set at creation time. -This is done by filling a thread attribute object @var{attr} of type -@code{pthread_attr_t}, then passing it as second argument to -@code{pthread_create}. Passing @code{NULL} is equivalent to passing a -thread attribute object with all attributes set to their default values. - -Attribute objects are consulted only when creating a new thread. The -same attribute object can be used for creating several threads. -Modifying an attribute object after a call to @code{pthread_create} does -not change the attributes of the thread previously created. - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_attr_init (pthread_attr_t *@var{attr}) -@code{pthread_attr_init} initializes the thread attribute object -@var{attr} and fills it with default values for the attributes. (The -default values are listed below for each attribute.) - -Each attribute @var{attrname} (see below for a list of all attributes) -can be individually set using the function -@code{pthread_attr_set@var{attrname}} and retrieved using the function -@code{pthread_attr_get@var{attrname}}. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_attr_destroy (pthread_attr_t *@var{attr}) -@code{pthread_attr_destroy} destroys the attribute object pointed to by -@var{attr} releasing any resources associated with it. @var{attr} is -left in an undefined state, and you must not use it again in a call to -any pthreads function until it has been reinitialized. -@end deftypefun - -@findex pthread_attr_setdetachstate -@findex pthread_attr_setguardsize -@findex pthread_attr_setinheritsched -@findex pthread_attr_setschedparam -@findex pthread_attr_setschedpolicy -@findex pthread_attr_setscope -@findex pthread_attr_setstack -@findex pthread_attr_setstackaddr -@findex pthread_attr_setstacksize -@comment pthread.h -@comment POSIX -@deftypefun int pthread_attr_setattr (pthread_attr_t *@var{obj}, int @var{value}) -Set attribute @var{attr} to @var{value} in the attribute object pointed -to by @var{obj}. See below for a list of possible attributes and the -values they can take. - -On success, these functions return 0. If @var{value} is not meaningful -for the @var{attr} being modified, they will return the error code -@code{EINVAL}. Some of the functions have other failure modes; see -below. -@end deftypefun - -@findex pthread_attr_getdetachstate -@findex pthread_attr_getguardsize -@findex pthread_attr_getinheritsched -@findex pthread_attr_getschedparam -@findex pthread_attr_getschedpolicy -@findex pthread_attr_getscope -@findex pthread_attr_getstack -@findex pthread_attr_getstackaddr -@findex pthread_attr_getstacksize -@comment pthread.h -@comment POSIX -@deftypefun int pthread_attr_getattr (const pthread_attr_t *@var{obj}, int *@var{value}) -Store the current setting of @var{attr} in @var{obj} into the variable -pointed to by @var{value}. - -These functions always return 0. -@end deftypefun - -The following thread attributes are supported: -@table @samp -@item detachstate -Choose whether the thread is created in the joinable state (value -@code{PTHREAD_CREATE_JOINABLE}) or in the detached state -(@code{PTHREAD_CREATE_DETACHED}). The default is -@code{PTHREAD_CREATE_JOINABLE}. - -In the joinable state, another thread can synchronize on the thread -termination and recover its termination code using @code{pthread_join}, -but some of the thread resources are kept allocated after the thread -terminates, and reclaimed only when another thread performs -@code{pthread_join} on that thread. - -In the detached state, the thread resources are immediately freed when -it terminates, but @code{pthread_join} cannot be used to synchronize on -the thread termination. - -A thread created in the joinable state can later be put in the detached -thread using @code{pthread_detach}. - -@item schedpolicy -Select the scheduling policy for the thread: one of @code{SCHED_OTHER} -(regular, non-realtime scheduling), @code{SCHED_RR} (realtime, -round-robin) or @code{SCHED_FIFO} (realtime, first-in first-out). -The default is @code{SCHED_OTHER}. -@c Not doc'd in our manual: FIXME. -@c See @code{sched_setpolicy} for more information on scheduling policies. - -The realtime scheduling policies @code{SCHED_RR} and @code{SCHED_FIFO} -are available only to processes with superuser privileges. -@code{pthread_attr_setschedparam} will fail and return @code{ENOTSUP} if -you try to set a realtime policy when you are unprivileged. - -The scheduling policy of a thread can be changed after creation with -@code{pthread_setschedparam}. - -@item schedparam -Change the scheduling parameter (the scheduling priority) -for the thread. The default is 0. - -This attribute is not significant if the scheduling policy is -@code{SCHED_OTHER}; it only matters for the realtime policies -@code{SCHED_RR} and @code{SCHED_FIFO}. - -The scheduling priority of a thread can be changed after creation with -@code{pthread_setschedparam}. - -@item inheritsched -Choose whether the scheduling policy and scheduling parameter for the -newly created thread are determined by the values of the -@var{schedpolicy} and @var{schedparam} attributes (value -@code{PTHREAD_EXPLICIT_SCHED}) or are inherited from the parent thread -(value @code{PTHREAD_INHERIT_SCHED}). The default is -@code{PTHREAD_EXPLICIT_SCHED}. - -@item scope -Choose the scheduling contention scope for the created thread. The -default is @code{PTHREAD_SCOPE_SYSTEM}, meaning that the threads contend -for CPU time with all processes running on the machine. In particular, -thread priorities are interpreted relative to the priorities of all -other processes on the machine. The other possibility, -@code{PTHREAD_SCOPE_PROCESS}, means that scheduling contention occurs -only between the threads of the running process: thread priorities are -interpreted relative to the priorities of the other threads of the -process, regardless of the priorities of other processes. - -@code{PTHREAD_SCOPE_PROCESS} is not supported in LinuxThreads. If you -try to set the scope to this value, @code{pthread_attr_setscope} will -fail and return @code{ENOTSUP}. - -@item stackaddr -Provide an address for an application managed stack. The size of the -stack must be at least @code{PTHREAD_STACK_MIN}. - -@item stacksize -Change the size of the stack created for the thread. The value defines -the minimum stack size, in bytes. - -If the value exceeds the system's maximum stack size, or is smaller -than @code{PTHREAD_STACK_MIN}, @code{pthread_attr_setstacksize} will -fail and return @code{EINVAL}. - -@item stack -Provide both the address and size of an application managed stack to -use for the new thread. The base of the memory area is @var{stackaddr} -with the size of the memory area, @var{stacksize}, measured in bytes. - -If the value of @var{stacksize} is less than @code{PTHREAD_STACK_MIN}, -or greater than the system's maximum stack size, or if the value of -@var{stackaddr} lacks the proper alignment, @code{pthread_attr_setstack} -will fail and return @code{EINVAL}. - -@item guardsize -Change the minimum size in bytes of the guard area for the thread's -stack. The default size is a single page. If this value is set, it -will be rounded up to the nearest page size. If the value is set to 0, -a guard area will not be created for this thread. The space allocated -for the guard area is used to catch stack overflow. Therefore, when -allocating large structures on the stack, a larger guard area may be -required to catch a stack overflow. - -If the caller is managing their own stacks (if the @code{stackaddr} -attribute has been set), then the @code{guardsize} attribute is ignored. - -If the value exceeds the @code{stacksize}, @code{pthread_atrr_setguardsize} -will fail and return @code{EINVAL}. -@end table - -@node Cancellation -@section Cancellation - -Cancellation is the mechanism by which a thread can terminate the -execution of another thread. More precisely, a thread can send a -cancellation request to another thread. Depending on its settings, the -target thread can then either ignore the request, honor it immediately, -or defer it till it reaches a cancellation point. When threads are -first created by @code{pthread_create}, they always defer cancellation -requests. - -When a thread eventually honors a cancellation request, it behaves as if -@code{pthread_exit(PTHREAD_CANCELED)} was called. All cleanup handlers -are executed in reverse order, finalization functions for -thread-specific data are called, and finally the thread stops executing. -If the canceled thread was joinable, the return value -@code{PTHREAD_CANCELED} is provided to whichever thread calls -@var{pthread_join} on it. See @code{pthread_exit} for more information. - -Cancellation points are the points where the thread checks for pending -cancellation requests and performs them. The POSIX threads functions -@code{pthread_join}, @code{pthread_cond_wait}, -@code{pthread_cond_timedwait}, @code{pthread_testcancel}, -@code{sem_wait}, and @code{sigwait} are cancellation points. In -addition, these system calls are cancellation points: - -@multitable @columnfractions .33 .33 .33 -@item @t{accept} @tab @t{open} @tab @t{sendmsg} -@item @t{close} @tab @t{pause} @tab @t{sendto} -@item @t{connect} @tab @t{read} @tab @t{system} -@item @t{fcntl} @tab @t{recv} @tab @t{tcdrain} -@item @t{fsync} @tab @t{recvfrom} @tab @t{wait} -@item @t{lseek} @tab @t{recvmsg} @tab @t{waitpid} -@item @t{msync} @tab @t{send} @tab @t{write} -@item @t{nanosleep} -@end multitable - -@noindent -All library functions that call these functions (such as -@code{printf}) are also cancellation points. - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_setcancelstate (int @var{state}, int *@var{oldstate}) -@code{pthread_setcancelstate} changes the cancellation state for the -calling thread -- that is, whether cancellation requests are ignored or -not. The @var{state} argument is the new cancellation state: either -@code{PTHREAD_CANCEL_ENABLE} to enable cancellation, or -@code{PTHREAD_CANCEL_DISABLE} to disable cancellation (cancellation -requests are ignored). - -If @var{oldstate} is not @code{NULL}, the previous cancellation state is -stored in the location pointed to by @var{oldstate}, and can thus be -restored later by another call to @code{pthread_setcancelstate}. - -If the @var{state} argument is not @code{PTHREAD_CANCEL_ENABLE} or -@code{PTHREAD_CANCEL_DISABLE}, @code{pthread_setcancelstate} fails and -returns @code{EINVAL}. Otherwise it returns 0. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_setcanceltype (int @var{type}, int *@var{oldtype}) -@code{pthread_setcanceltype} changes the type of responses to -cancellation requests for the calling thread: asynchronous (immediate) -or deferred. The @var{type} argument is the new cancellation type: -either @code{PTHREAD_CANCEL_ASYNCHRONOUS} to cancel the calling thread -as soon as the cancellation request is received, or -@code{PTHREAD_CANCEL_DEFERRED} to keep the cancellation request pending -until the next cancellation point. If @var{oldtype} is not @code{NULL}, -the previous cancellation state is stored in the location pointed to by -@var{oldtype}, and can thus be restored later by another call to -@code{pthread_setcanceltype}. - -If the @var{type} argument is not @code{PTHREAD_CANCEL_DEFERRED} or -@code{PTHREAD_CANCEL_ASYNCHRONOUS}, @code{pthread_setcanceltype} fails -and returns @code{EINVAL}. Otherwise it returns 0. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun void pthread_testcancel (@var{void}) -@code{pthread_testcancel} does nothing except testing for pending -cancellation and executing it. Its purpose is to introduce explicit -checks for cancellation in long sequences of code that do not call -cancellation point functions otherwise. -@end deftypefun - -@node Cleanup Handlers -@section Cleanup Handlers - -Cleanup handlers are functions that get called when a thread terminates, -either by calling @code{pthread_exit} or because of -cancellation. Cleanup handlers are installed and removed following a -stack-like discipline. - -The purpose of cleanup handlers is to free the resources that a thread -may hold at the time it terminates. In particular, if a thread exits or -is canceled while it owns a locked mutex, the mutex will remain locked -forever and prevent other threads from executing normally. The best way -to avoid this is, just before locking the mutex, to install a cleanup -handler whose effect is to unlock the mutex. Cleanup handlers can be -used similarly to free blocks allocated with @code{malloc} or close file -descriptors on thread termination. - -Here is how to lock a mutex @var{mut} in such a way that it will be -unlocked if the thread is canceled while @var{mut} is locked: - -@smallexample -pthread_cleanup_push(pthread_mutex_unlock, (void *) &mut); -pthread_mutex_lock(&mut); -/* do some work */ -pthread_mutex_unlock(&mut); -pthread_cleanup_pop(0); -@end smallexample - -Equivalently, the last two lines can be replaced by - -@smallexample -pthread_cleanup_pop(1); -@end smallexample - -Notice that the code above is safe only in deferred cancellation mode -(see @code{pthread_setcanceltype}). In asynchronous cancellation mode, a -cancellation can occur between @code{pthread_cleanup_push} and -@code{pthread_mutex_lock}, or between @code{pthread_mutex_unlock} and -@code{pthread_cleanup_pop}, resulting in both cases in the thread trying -to unlock a mutex not locked by the current thread. This is the main -reason why asynchronous cancellation is difficult to use. - -If the code above must also work in asynchronous cancellation mode, -then it must switch to deferred mode for locking and unlocking the -mutex: - -@smallexample -pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, &oldtype); -pthread_cleanup_push(pthread_mutex_unlock, (void *) &mut); -pthread_mutex_lock(&mut); -/* do some work */ -pthread_cleanup_pop(1); -pthread_setcanceltype(oldtype, NULL); -@end smallexample - -The code above can be rewritten in a more compact and efficient way, -using the non-portable functions @code{pthread_cleanup_push_defer_np} -and @code{pthread_cleanup_pop_restore_np}: - -@smallexample -pthread_cleanup_push_defer_np(pthread_mutex_unlock, (void *) &mut); -pthread_mutex_lock(&mut); -/* do some work */ -pthread_cleanup_pop_restore_np(1); -@end smallexample - -@comment pthread.h -@comment POSIX -@deftypefun void pthread_cleanup_push (void (*@var{routine}) (void *), void *@var{arg}) - -@code{pthread_cleanup_push} installs the @var{routine} function with -argument @var{arg} as a cleanup handler. From this point on to the -matching @code{pthread_cleanup_pop}, the function @var{routine} will be -called with arguments @var{arg} when the thread terminates, either -through @code{pthread_exit} or by cancellation. If several cleanup -handlers are active at that point, they are called in LIFO order: the -most recently installed handler is called first. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun void pthread_cleanup_pop (int @var{execute}) -@code{pthread_cleanup_pop} removes the most recently installed cleanup -handler. If the @var{execute} argument is not 0, it also executes the -handler, by calling the @var{routine} function with arguments -@var{arg}. If the @var{execute} argument is 0, the handler is only -removed but not executed. -@end deftypefun - -Matching pairs of @code{pthread_cleanup_push} and -@code{pthread_cleanup_pop} must occur in the same function, at the same -level of block nesting. Actually, @code{pthread_cleanup_push} and -@code{pthread_cleanup_pop} are macros, and the expansion of -@code{pthread_cleanup_push} introduces an open brace @code{@{} with the -matching closing brace @code{@}} being introduced by the expansion of the -matching @code{pthread_cleanup_pop}. - -@comment pthread.h -@comment GNU -@deftypefun void pthread_cleanup_push_defer_np (void (*@var{routine}) (void *), void *@var{arg}) -@code{pthread_cleanup_push_defer_np} is a non-portable extension that -combines @code{pthread_cleanup_push} and @code{pthread_setcanceltype}. -It pushes a cleanup handler just as @code{pthread_cleanup_push} does, -but also saves the current cancellation type and sets it to deferred -cancellation. This ensures that the cleanup mechanism is effective even -if the thread was initially in asynchronous cancellation mode. -@end deftypefun - -@comment pthread.h -@comment GNU -@deftypefun void pthread_cleanup_pop_restore_np (int @var{execute}) -@code{pthread_cleanup_pop_restore_np} pops a cleanup handler introduced -by @code{pthread_cleanup_push_defer_np}, and restores the cancellation -type to its value at the time @code{pthread_cleanup_push_defer_np} was -called. -@end deftypefun - -@code{pthread_cleanup_push_defer_np} and -@code{pthread_cleanup_pop_restore_np} must occur in matching pairs, at -the same level of block nesting. - -The sequence - -@smallexample -pthread_cleanup_push_defer_np(routine, arg); -... -pthread_cleanup_pop_restore_np(execute); -@end smallexample - -@noindent -is functionally equivalent to (but more compact and efficient than) - -@smallexample -@{ - int oldtype; - pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, &oldtype); - pthread_cleanup_push(routine, arg); - ... - pthread_cleanup_pop(execute); - pthread_setcanceltype(oldtype, NULL); -@} -@end smallexample - - -@node Mutexes -@section Mutexes - -A mutex is a MUTual EXclusion device, and is useful for protecting -shared data structures from concurrent modifications, and implementing -critical sections and monitors. - -A mutex has two possible states: unlocked (not owned by any thread), -and locked (owned by one thread). A mutex can never be owned by two -different threads simultaneously. A thread attempting to lock a mutex -that is already locked by another thread is suspended until the owning -thread unlocks the mutex first. - -None of the mutex functions is a cancellation point, not even -@code{pthread_mutex_lock}, in spite of the fact that it can suspend a -thread for arbitrary durations. This way, the status of mutexes at -cancellation points is predictable, allowing cancellation handlers to -unlock precisely those mutexes that need to be unlocked before the -thread stops executing. Consequently, threads using deferred -cancellation should never hold a mutex for extended periods of time. - -It is not safe to call mutex functions from a signal handler. In -particular, calling @code{pthread_mutex_lock} or -@code{pthread_mutex_unlock} from a signal handler may deadlock the -calling thread. - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_mutex_init (pthread_mutex_t *@var{mutex}, const pthread_mutexattr_t *@var{mutexattr}) - -@code{pthread_mutex_init} initializes the mutex object pointed to by -@var{mutex} according to the mutex attributes specified in @var{mutexattr}. -If @var{mutexattr} is @code{NULL}, default attributes are used instead. - -The LinuxThreads implementation supports only one mutex attribute, -the @var{mutex type}, which is either ``fast'', ``recursive'', or -``error checking''. The type of a mutex determines whether -it can be locked again by a thread that already owns it. -The default type is ``fast''. - -Variables of type @code{pthread_mutex_t} can also be initialized -statically, using the constants @code{PTHREAD_MUTEX_INITIALIZER} (for -timed mutexes), @code{PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP} (for -recursive mutexes), @code{PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP} -(for fast mutexes(, and @code{PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP} -(for error checking mutexes). - -@code{pthread_mutex_init} always returns 0. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_mutex_lock (pthread_mutex_t *mutex)) -@code{pthread_mutex_lock} locks the given mutex. If the mutex is -currently unlocked, it becomes locked and owned by the calling thread, -and @code{pthread_mutex_lock} returns immediately. If the mutex is -already locked by another thread, @code{pthread_mutex_lock} suspends the -calling thread until the mutex is unlocked. - -If the mutex is already locked by the calling thread, the behavior of -@code{pthread_mutex_lock} depends on the type of the mutex. If the mutex -is of the ``fast'' type, the calling thread is suspended. It will -remain suspended forever, because no other thread can unlock the mutex. -If the mutex is of the ``error checking'' type, @code{pthread_mutex_lock} -returns immediately with the error code @code{EDEADLK}. If the mutex is -of the ``recursive'' type, @code{pthread_mutex_lock} succeeds and -returns immediately, recording the number of times the calling thread -has locked the mutex. An equal number of @code{pthread_mutex_unlock} -operations must be performed before the mutex returns to the unlocked -state. -@c This doesn't discuss PTHREAD_MUTEX_TIMED_NP mutex attributes. FIXME -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_mutex_trylock (pthread_mutex_t *@var{mutex}) -@code{pthread_mutex_trylock} behaves identically to -@code{pthread_mutex_lock}, except that it does not block the calling -thread if the mutex is already locked by another thread (or by the -calling thread in the case of a ``fast'' mutex). Instead, -@code{pthread_mutex_trylock} returns immediately with the error code -@code{EBUSY}. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_mutex_timedlock (pthread_mutex_t *@var{mutex}, const struct timespec *@var{abstime}) -The @code{pthread_mutex_timedlock} is similar to the -@code{pthread_mutex_lock} function but instead of blocking for in -indefinite time if the mutex is locked by another thread, it returns -when the time specified in @var{abstime} is reached. - -This function can only be used on standard (``timed'') and ``error -checking'' mutexes. It behaves just like @code{pthread_mutex_lock} for -all other types. - -If the mutex is successfully locked, the function returns zero. If the -time specified in @var{abstime} is reached without the mutex being locked, -@code{ETIMEDOUT} is returned. - -This function was introduced in the POSIX.1d revision of the POSIX standard. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_mutex_unlock (pthread_mutex_t *@var{mutex}) -@code{pthread_mutex_unlock} unlocks the given mutex. The mutex is -assumed to be locked and owned by the calling thread on entrance to -@code{pthread_mutex_unlock}. If the mutex is of the ``fast'' type, -@code{pthread_mutex_unlock} always returns it to the unlocked state. If -it is of the ``recursive'' type, it decrements the locking count of the -mutex (number of @code{pthread_mutex_lock} operations performed on it by -the calling thread), and only when this count reaches zero is the mutex -actually unlocked. - -On ``error checking'' mutexes, @code{pthread_mutex_unlock} actually -checks at run-time that the mutex is locked on entrance, and that it was -locked by the same thread that is now calling -@code{pthread_mutex_unlock}. If these conditions are not met, -@code{pthread_mutex_unlock} returns @code{EPERM}, and the mutex remains -unchanged. ``Fast'' and ``recursive'' mutexes perform no such checks, -thus allowing a locked mutex to be unlocked by a thread other than its -owner. This is non-portable behavior and must not be relied upon. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_mutex_destroy (pthread_mutex_t *@var{mutex}) -@code{pthread_mutex_destroy} destroys a mutex object, freeing the -resources it might hold. The mutex must be unlocked on entrance. In the -LinuxThreads implementation, no resources are associated with mutex -objects, thus @code{pthread_mutex_destroy} actually does nothing except -checking that the mutex is unlocked. - -If the mutex is locked by some thread, @code{pthread_mutex_destroy} -returns @code{EBUSY}. Otherwise it returns 0. -@end deftypefun - -If any of the above functions (except @code{pthread_mutex_init}) -is applied to an uninitialized mutex, they will simply return -@code{EINVAL} and do nothing. - -A shared global variable @var{x} can be protected by a mutex as follows: - -@smallexample -int x; -pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER; -@end smallexample - -All accesses and modifications to @var{x} should be bracketed by calls to -@code{pthread_mutex_lock} and @code{pthread_mutex_unlock} as follows: - -@smallexample -pthread_mutex_lock(&mut); -/* operate on x */ -pthread_mutex_unlock(&mut); -@end smallexample - -Mutex attributes can be specified at mutex creation time, by passing a -mutex attribute object as second argument to @code{pthread_mutex_init}. -Passing @code{NULL} is equivalent to passing a mutex attribute object -with all attributes set to their default values. - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_mutexattr_init (pthread_mutexattr_t *@var{attr}) -@code{pthread_mutexattr_init} initializes the mutex attribute object -@var{attr} and fills it with default values for the attributes. - -This function always returns 0. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_mutexattr_destroy (pthread_mutexattr_t *@var{attr}) -@code{pthread_mutexattr_destroy} destroys a mutex attribute object, -which must not be reused until it is -reinitialized. @code{pthread_mutexattr_destroy} does nothing in the -LinuxThreads implementation. - -This function always returns 0. -@end deftypefun - -LinuxThreads supports only one mutex attribute: the mutex type, which is -either @code{PTHREAD_MUTEX_ADAPTIVE_NP} for ``fast'' mutexes, -@code{PTHREAD_MUTEX_RECURSIVE_NP} for ``recursive'' mutexes, -@code{PTHREAD_MUTEX_TIMED_NP} for ``timed'' mutexes, or -@code{PTHREAD_MUTEX_ERRORCHECK_NP} for ``error checking'' mutexes. As -the @code{NP} suffix indicates, this is a non-portable extension to the -POSIX standard and should not be employed in portable programs. - -The mutex type determines what happens if a thread attempts to lock a -mutex it already owns with @code{pthread_mutex_lock}. If the mutex is of -the ``fast'' type, @code{pthread_mutex_lock} simply suspends the calling -thread forever. If the mutex is of the ``error checking'' type, -@code{pthread_mutex_lock} returns immediately with the error code -@code{EDEADLK}. If the mutex is of the ``recursive'' type, the call to -@code{pthread_mutex_lock} returns immediately with a success return -code. The number of times the thread owning the mutex has locked it is -recorded in the mutex. The owning thread must call -@code{pthread_mutex_unlock} the same number of times before the mutex -returns to the unlocked state. - -The default mutex type is ``timed'', that is, @code{PTHREAD_MUTEX_TIMED_NP}. -@c This doesn't describe how a ``timed'' mutex behaves. FIXME - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_mutexattr_settype (pthread_mutexattr_t *@var{attr}, int @var{type}) -@code{pthread_mutexattr_settype} sets the mutex type attribute in -@var{attr} to the value specified by @var{type}. - -If @var{type} is not @code{PTHREAD_MUTEX_ADAPTIVE_NP}, -@code{PTHREAD_MUTEX_RECURSIVE_NP}, @code{PTHREAD_MUTEX_TIMED_NP}, or -@code{PTHREAD_MUTEX_ERRORCHECK_NP}, this function will return -@code{EINVAL} and leave @var{attr} unchanged. - -The standard Unix98 identifiers @code{PTHREAD_MUTEX_DEFAULT}, -@code{PTHREAD_MUTEX_NORMAL}, @code{PTHREAD_MUTEX_RECURSIVE}, -and @code{PTHREAD_MUTEX_ERRORCHECK} are also permitted. - -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_mutexattr_gettype (const pthread_mutexattr_t *@var{attr}, int *@var{type}) -@code{pthread_mutexattr_gettype} retrieves the current value of the -mutex type attribute in @var{attr} and stores it in the location pointed -to by @var{type}. - -This function always returns 0. -@end deftypefun - -@node Condition Variables -@section Condition Variables - -A condition (short for ``condition variable'') is a synchronization -device that allows threads to suspend execution until some predicate on -shared data is satisfied. The basic operations on conditions are: signal -the condition (when the predicate becomes true), and wait for the -condition, suspending the thread execution until another thread signals -the condition. - -A condition variable must always be associated with a mutex, to avoid -the race condition where a thread prepares to wait on a condition -variable and another thread signals the condition just before the first -thread actually waits on it. - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_cond_init (pthread_cond_t *@var{cond}, pthread_condattr_t *cond_@var{attr}) - -@code{pthread_cond_init} initializes the condition variable @var{cond}, -using the condition attributes specified in @var{cond_attr}, or default -attributes if @var{cond_attr} is @code{NULL}. The LinuxThreads -implementation supports no attributes for conditions, hence the -@var{cond_attr} parameter is actually ignored. - -Variables of type @code{pthread_cond_t} can also be initialized -statically, using the constant @code{PTHREAD_COND_INITIALIZER}. - -This function always returns 0. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_cond_signal (pthread_cond_t *@var{cond}) -@code{pthread_cond_signal} restarts one of the threads that are waiting -on the condition variable @var{cond}. If no threads are waiting on -@var{cond}, nothing happens. If several threads are waiting on -@var{cond}, exactly one is restarted, but it is not specified which. - -This function always returns 0. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_cond_broadcast (pthread_cond_t *@var{cond}) -@code{pthread_cond_broadcast} restarts all the threads that are waiting -on the condition variable @var{cond}. Nothing happens if no threads are -waiting on @var{cond}. - -This function always returns 0. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_cond_wait (pthread_cond_t *@var{cond}, pthread_mutex_t *@var{mutex}) -@code{pthread_cond_wait} atomically unlocks the @var{mutex} (as per -@code{pthread_unlock_mutex}) and waits for the condition variable -@var{cond} to be signaled. The thread execution is suspended and does -not consume any CPU time until the condition variable is signaled. The -@var{mutex} must be locked by the calling thread on entrance to -@code{pthread_cond_wait}. Before returning to the calling thread, -@code{pthread_cond_wait} re-acquires @var{mutex} (as per -@code{pthread_lock_mutex}). - -Unlocking the mutex and suspending on the condition variable is done -atomically. Thus, if all threads always acquire the mutex before -signaling the condition, this guarantees that the condition cannot be -signaled (and thus ignored) between the time a thread locks the mutex -and the time it waits on the condition variable. - -This function always returns 0. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_cond_timedwait (pthread_cond_t *@var{cond}, pthread_mutex_t *@var{mutex}, const struct timespec *@var{abstime}) -@code{pthread_cond_timedwait} atomically unlocks @var{mutex} and waits -on @var{cond}, as @code{pthread_cond_wait} does, but it also bounds the -duration of the wait. If @var{cond} has not been signaled before time -@var{abstime}, the mutex @var{mutex} is re-acquired and -@code{pthread_cond_timedwait} returns the error code @code{ETIMEDOUT}. -The wait can also be interrupted by a signal; in that case -@code{pthread_cond_timedwait} returns @code{EINTR}. - -The @var{abstime} parameter specifies an absolute time, with the same -origin as @code{time} and @code{gettimeofday}: an @var{abstime} of 0 -corresponds to 00:00:00 GMT, January 1, 1970. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_cond_destroy (pthread_cond_t *@var{cond}) -@code{pthread_cond_destroy} destroys the condition variable @var{cond}, -freeing the resources it might hold. If any threads are waiting on the -condition variable, @code{pthread_cond_destroy} leaves @var{cond} -untouched and returns @code{EBUSY}. Otherwise it returns 0, and -@var{cond} must not be used again until it is reinitialized. - -In the LinuxThreads implementation, no resources are associated with -condition variables, so @code{pthread_cond_destroy} actually does -nothing. -@end deftypefun - -@code{pthread_cond_wait} and @code{pthread_cond_timedwait} are -cancellation points. If a thread is canceled while suspended in one of -these functions, the thread immediately resumes execution, relocks the -mutex specified by @var{mutex}, and finally executes the cancellation. -Consequently, cleanup handlers are assured that @var{mutex} is locked -when they are called. - -It is not safe to call the condition variable functions from a signal -handler. In particular, calling @code{pthread_cond_signal} or -@code{pthread_cond_broadcast} from a signal handler may deadlock the -calling thread. - -Consider two shared variables @var{x} and @var{y}, protected by the -mutex @var{mut}, and a condition variable @var{cond} that is to be -signaled whenever @var{x} becomes greater than @var{y}. - -@smallexample -int x,y; -pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER; -pthread_cond_t cond = PTHREAD_COND_INITIALIZER; -@end smallexample - -Waiting until @var{x} is greater than @var{y} is performed as follows: - -@smallexample -pthread_mutex_lock(&mut); -while (x <= y) @{ - pthread_cond_wait(&cond, &mut); -@} -/* operate on x and y */ -pthread_mutex_unlock(&mut); -@end smallexample - -Modifications on @var{x} and @var{y} that may cause @var{x} to become greater than -@var{y} should signal the condition if needed: - -@smallexample -pthread_mutex_lock(&mut); -/* modify x and y */ -if (x > y) pthread_cond_broadcast(&cond); -pthread_mutex_unlock(&mut); -@end smallexample - -If it can be proved that at most one waiting thread needs to be waken -up (for instance, if there are only two threads communicating through -@var{x} and @var{y}), @code{pthread_cond_signal} can be used as a slightly more -efficient alternative to @code{pthread_cond_broadcast}. In doubt, use -@code{pthread_cond_broadcast}. - -To wait for @var{x} to becomes greater than @var{y} with a timeout of 5 -seconds, do: - -@smallexample -struct timeval now; -struct timespec timeout; -int retcode; - -pthread_mutex_lock(&mut); -gettimeofday(&now); -timeout.tv_sec = now.tv_sec + 5; -timeout.tv_nsec = now.tv_usec * 1000; -retcode = 0; -while (x <= y && retcode != ETIMEDOUT) @{ - retcode = pthread_cond_timedwait(&cond, &mut, &timeout); -@} -if (retcode == ETIMEDOUT) @{ - /* timeout occurred */ -@} else @{ - /* operate on x and y */ -@} -pthread_mutex_unlock(&mut); -@end smallexample - -Condition attributes can be specified at condition creation time, by -passing a condition attribute object as second argument to -@code{pthread_cond_init}. Passing @code{NULL} is equivalent to passing -a condition attribute object with all attributes set to their default -values. - -The LinuxThreads implementation supports no attributes for -conditions. The functions on condition attributes are included only for -compliance with the POSIX standard. - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_condattr_init (pthread_condattr_t *@var{attr}) -@deftypefunx int pthread_condattr_destroy (pthread_condattr_t *@var{attr}) -@code{pthread_condattr_init} initializes the condition attribute object -@var{attr} and fills it with default values for the attributes. -@code{pthread_condattr_destroy} destroys the condition attribute object -@var{attr}. - -Both functions do nothing in the LinuxThreads implementation. - -@code{pthread_condattr_init} and @code{pthread_condattr_destroy} always -return 0. -@end deftypefun - -@node POSIX Semaphores -@section POSIX Semaphores - -@vindex SEM_VALUE_MAX -Semaphores are counters for resources shared between threads. The -basic operations on semaphores are: increment the counter atomically, -and wait until the counter is non-null and decrement it atomically. - -Semaphores have a maximum value past which they cannot be incremented. -The macro @code{SEM_VALUE_MAX} is defined to be this maximum value. In -the GNU C library, @code{SEM_VALUE_MAX} is equal to @code{INT_MAX} -(@pxref{Range of Type}), but it may be much smaller on other systems. - -The pthreads library implements POSIX 1003.1b semaphores. These should -not be confused with System V semaphores (@code{ipc}, @code{semctl} and -@code{semop}). -@c !!! SysV IPC is not doc'd at all in our manual - -All the semaphore functions and macros are defined in @file{semaphore.h}. - -@comment semaphore.h -@comment POSIX -@deftypefun int sem_init (sem_t *@var{sem}, int @var{pshared}, unsigned int @var{value}) -@code{sem_init} initializes the semaphore object pointed to by -@var{sem}. The count associated with the semaphore is set initially to -@var{value}. The @var{pshared} argument indicates whether the semaphore -is local to the current process (@var{pshared} is zero) or is to be -shared between several processes (@var{pshared} is not zero). - -On success @code{sem_init} returns 0. On failure it returns -1 and sets -@var{errno} to one of the following values: - -@table @code -@item EINVAL -@var{value} exceeds the maximal counter value @code{SEM_VALUE_MAX} - -@item ENOSYS -@var{pshared} is not zero. LinuxThreads currently does not support -process-shared semaphores. (This will eventually change.) -@end table -@end deftypefun - -@comment semaphore.h -@comment POSIX -@deftypefun int sem_destroy (sem_t * @var{sem}) -@code{sem_destroy} destroys a semaphore object, freeing the resources it -might hold. If any threads are waiting on the semaphore when -@code{sem_destroy} is called, it fails and sets @var{errno} to -@code{EBUSY}. - -In the LinuxThreads implementation, no resources are associated with -semaphore objects, thus @code{sem_destroy} actually does nothing except -checking that no thread is waiting on the semaphore. This will change -when process-shared semaphores are implemented. -@end deftypefun - -@comment semaphore.h -@comment POSIX -@deftypefun int sem_wait (sem_t * @var{sem}) -@code{sem_wait} suspends the calling thread until the semaphore pointed -to by @var{sem} has non-zero count. It then atomically decreases the -semaphore count. - -@code{sem_wait} is a cancellation point. It always returns 0. -@end deftypefun - -@comment semaphore.h -@comment POSIX -@deftypefun int sem_trywait (sem_t * @var{sem}) -@code{sem_trywait} is a non-blocking variant of @code{sem_wait}. If the -semaphore pointed to by @var{sem} has non-zero count, the count is -atomically decreased and @code{sem_trywait} immediately returns 0. If -the semaphore count is zero, @code{sem_trywait} immediately returns -1 -and sets errno to @code{EAGAIN}. -@end deftypefun - -@comment semaphore.h -@comment POSIX -@deftypefun int sem_post (sem_t * @var{sem}) -@code{sem_post} atomically increases the count of the semaphore pointed to -by @var{sem}. This function never blocks. - -@c !!! This para appears not to agree with the code. -On processors supporting atomic compare-and-swap (Intel 486, Pentium and -later, Alpha, PowerPC, MIPS II, Motorola 68k, Ultrasparc), the -@code{sem_post} function is can safely be called from signal handlers. -This is the only thread synchronization function provided by POSIX -threads that is async-signal safe. On the Intel 386 and earlier Sparc -chips, the current LinuxThreads implementation of @code{sem_post} is not -async-signal safe, because the hardware does not support the required -atomic operations. - -@code{sem_post} always succeeds and returns 0, unless the semaphore -count would exceed @code{SEM_VALUE_MAX} after being incremented. In -that case @code{sem_post} returns -1 and sets @var{errno} to -@code{EINVAL}. The semaphore count is left unchanged. -@end deftypefun - -@comment semaphore.h -@comment POSIX -@deftypefun int sem_getvalue (sem_t * @var{sem}, int * @var{sval}) -@code{sem_getvalue} stores in the location pointed to by @var{sval} the -current count of the semaphore @var{sem}. It always returns 0. -@end deftypefun - -@node Thread-Specific Data -@section Thread-Specific Data - -Programs often need global or static variables that have different -values in different threads. Since threads share one memory space, this -cannot be achieved with regular variables. Thread-specific data is the -POSIX threads answer to this need. - -Each thread possesses a private memory block, the thread-specific data -area, or TSD area for short. This area is indexed by TSD keys. The TSD -area associates values of type @code{void *} to TSD keys. TSD keys are -common to all threads, but the value associated with a given TSD key can -be different in each thread. - -For concreteness, the TSD areas can be viewed as arrays of @code{void *} -pointers, TSD keys as integer indices into these arrays, and the value -of a TSD key as the value of the corresponding array element in the -calling thread. - -When a thread is created, its TSD area initially associates @code{NULL} -with all keys. - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_key_create (pthread_key_t *@var{key}, void (*destr_function) (void *)) -@code{pthread_key_create} allocates a new TSD key. The key is stored in -the location pointed to by @var{key}. There is a limit of -@code{PTHREAD_KEYS_MAX} on the number of keys allocated at a given -time. The value initially associated with the returned key is -@code{NULL} in all currently executing threads. - -The @var{destr_function} argument, if not @code{NULL}, specifies a -destructor function associated with the key. When a thread terminates -via @code{pthread_exit} or by cancellation, @var{destr_function} is -called on the value associated with the key in that thread. The -@var{destr_function} is not called if a key is deleted with -@code{pthread_key_delete} or a value is changed with -@code{pthread_setspecific}. The order in which destructor functions are -called at thread termination time is unspecified. - -Before the destructor function is called, the @code{NULL} value is -associated with the key in the current thread. A destructor function -might, however, re-associate non-@code{NULL} values to that key or some -other key. To deal with this, if after all the destructors have been -called for all non-@code{NULL} values, there are still some -non-@code{NULL} values with associated destructors, then the process is -repeated. The LinuxThreads implementation stops the process after -@code{PTHREAD_DESTRUCTOR_ITERATIONS} iterations, even if some -non-@code{NULL} values with associated descriptors remain. Other -implementations may loop indefinitely. - -@code{pthread_key_create} returns 0 unless @code{PTHREAD_KEYS_MAX} keys -have already been allocated, in which case it fails and returns -@code{EAGAIN}. -@end deftypefun - - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_key_delete (pthread_key_t @var{key}) -@code{pthread_key_delete} deallocates a TSD key. It does not check -whether non-@code{NULL} values are associated with that key in the -currently executing threads, nor call the destructor function associated -with the key. - -If there is no such key @var{key}, it returns @code{EINVAL}. Otherwise -it returns 0. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_setspecific (pthread_key_t @var{key}, const void *@var{pointer}) -@code{pthread_setspecific} changes the value associated with @var{key} -in the calling thread, storing the given @var{pointer} instead. - -If there is no such key @var{key}, it returns @code{EINVAL}. Otherwise -it returns 0. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun {void *} pthread_getspecific (pthread_key_t @var{key}) -@code{pthread_getspecific} returns the value currently associated with -@var{key} in the calling thread. - -If there is no such key @var{key}, it returns @code{NULL}. -@end deftypefun - -The following code fragment allocates a thread-specific array of 100 -characters, with automatic reclaimation at thread exit: - -@smallexample -/* Key for the thread-specific buffer */ -static pthread_key_t buffer_key; - -/* Once-only initialisation of the key */ -static pthread_once_t buffer_key_once = PTHREAD_ONCE_INIT; - -/* Allocate the thread-specific buffer */ -void buffer_alloc(void) -@{ - pthread_once(&buffer_key_once, buffer_key_alloc); - pthread_setspecific(buffer_key, malloc(100)); -@} - -/* Return the thread-specific buffer */ -char * get_buffer(void) -@{ - return (char *) pthread_getspecific(buffer_key); -@} - -/* Allocate the key */ -static void buffer_key_alloc() -@{ - pthread_key_create(&buffer_key, buffer_destroy); -@} - -/* Free the thread-specific buffer */ -static void buffer_destroy(void * buf) -@{ - free(buf); -@} -@end smallexample - -@node Threads and Signal Handling -@section Threads and Signal Handling - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_sigmask (int @var{how}, const sigset_t *@var{newmask}, sigset_t *@var{oldmask}) -@code{pthread_sigmask} changes the signal mask for the calling thread as -described by the @var{how} and @var{newmask} arguments. If @var{oldmask} -is not @code{NULL}, the previous signal mask is stored in the location -pointed to by @var{oldmask}. - -The meaning of the @var{how} and @var{newmask} arguments is the same as -for @code{sigprocmask}. If @var{how} is @code{SIG_SETMASK}, the signal -mask is set to @var{newmask}. If @var{how} is @code{SIG_BLOCK}, the -signals specified to @var{newmask} are added to the current signal mask. -If @var{how} is @code{SIG_UNBLOCK}, the signals specified to -@var{newmask} are removed from the current signal mask. - -Recall that signal masks are set on a per-thread basis, but signal -actions and signal handlers, as set with @code{sigaction}, are shared -between all threads. - -The @code{pthread_sigmask} function returns 0 on success, and one of the -following error codes on error: -@table @code -@item EINVAL -@var{how} is not one of @code{SIG_SETMASK}, @code{SIG_BLOCK}, or @code{SIG_UNBLOCK} - -@item EFAULT -@var{newmask} or @var{oldmask} point to invalid addresses -@end table -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_kill (pthread_t @var{thread}, int @var{signo}) -@code{pthread_kill} sends signal number @var{signo} to the thread -@var{thread}. The signal is delivered and handled as described in -@ref{Signal Handling}. - -@code{pthread_kill} returns 0 on success, one of the following error codes -on error: -@table @code -@item EINVAL -@var{signo} is not a valid signal number - -@item ESRCH -The thread @var{thread} does not exist (e.g. it has already terminated) -@end table -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int sigwait (const sigset_t *@var{set}, int *@var{sig}) -@code{sigwait} suspends the calling thread until one of the signals in -@var{set} is delivered to the calling thread. It then stores the number -of the signal received in the location pointed to by @var{sig} and -returns. The signals in @var{set} must be blocked and not ignored on -entrance to @code{sigwait}. If the delivered signal has a signal handler -function attached, that function is @emph{not} called. - -@code{sigwait} is a cancellation point. It always returns 0. -@end deftypefun - -For @code{sigwait} to work reliably, the signals being waited for must be -blocked in all threads, not only in the calling thread, since -otherwise the POSIX semantics for signal delivery do not guarantee -that it's the thread doing the @code{sigwait} that will receive the signal. -The best way to achieve this is block those signals before any threads -are created, and never unblock them in the program other than by -calling @code{sigwait}. - -Signal handling in LinuxThreads departs significantly from the POSIX -standard. According to the standard, ``asynchronous'' (external) signals -are addressed to the whole process (the collection of all threads), -which then delivers them to one particular thread. The thread that -actually receives the signal is any thread that does not currently block -the signal. - -In LinuxThreads, each thread is actually a kernel process with its own -PID, so external signals are always directed to one particular thread. -If, for instance, another thread is blocked in @code{sigwait} on that -signal, it will not be restarted. - -The LinuxThreads implementation of @code{sigwait} installs dummy signal -handlers for the signals in @var{set} for the duration of the -wait. Since signal handlers are shared between all threads, other -threads must not attach their own signal handlers to these signals, or -alternatively they should all block these signals (which is recommended -anyway). - -@node Threads and Fork -@section Threads and Fork - -It's not intuitively obvious what should happen when a multi-threaded POSIX -process calls @code{fork}. Not only are the semantics tricky, but you may -need to write code that does the right thing at fork time even if that code -doesn't use the @code{fork} function. Moreover, you need to be aware of -interaction between @code{fork} and some library features like -@code{pthread_once} and stdio streams. - -When @code{fork} is called by one of the threads of a process, it creates a new -process which is copy of the calling process. Effectively, in addition to -copying certain system objects, the function takes a snapshot of the memory -areas of the parent process, and creates identical areas in the child. -To make matters more complicated, with threads it's possible for two or more -threads to concurrently call fork to create two or more child processes. - -The child process has a copy of the address space of the parent, but it does -not inherit any of its threads. Execution of the child process is carried out -by a new thread which returns from @code{fork} function with a return value of -zero; it is the only thread in the child process. Because threads are not -inherited across fork, issues arise. At the time of the call to @code{fork}, -threads in the parent process other than the one calling @code{fork} may have -been executing critical regions of code. As a result, the child process may -get a copy of objects that are not in a well-defined state. This potential -problem affects all components of the program. - -Any program component which will continue being used in a child process must -correctly handle its state during @code{fork}. For this purpose, the POSIX -interface provides the special function @code{pthread_atfork} for installing -pointers to handler functions which are called from within @code{fork}. - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_atfork (void (*@var{prepare})(void), void (*@var{parent})(void), void (*@var{child})(void)) - -@code{pthread_atfork} registers handler functions to be called just -before and just after a new process is created with @code{fork}. The -@var{prepare} handler will be called from the parent process, just -before the new process is created. The @var{parent} handler will be -called from the parent process, just before @code{fork} returns. The -@var{child} handler will be called from the child process, just before -@code{fork} returns. - -@code{pthread_atfork} returns 0 on success and a non-zero error code on -error. - -One or more of the three handlers @var{prepare}, @var{parent} and -@var{child} can be given as @code{NULL}, meaning that no handler needs -to be called at the corresponding point. - -@code{pthread_atfork} can be called several times to install several -sets of handlers. At @code{fork} time, the @var{prepare} handlers are -called in LIFO order (last added with @code{pthread_atfork}, first -called before @code{fork}), while the @var{parent} and @var{child} -handlers are called in FIFO order (first added, first called). - -If there is insufficient memory available to register the handlers, -@code{pthread_atfork} fails and returns @code{ENOMEM}. Otherwise it -returns 0. - -The functions @code{fork} and @code{pthread_atfork} must not be regarded as -reentrant from the context of the handlers. That is to say, if a -@code{pthread_atfork} handler invoked from within @code{fork} calls -@code{pthread_atfork} or @code{fork}, the behavior is undefined. - -Registering a triplet of handlers is an atomic operation with respect to fork. -If new handlers are registered at about the same time as a fork occurs, either -all three handlers will be called, or none of them will be called. - -The handlers are inherited by the child process, and there is no -way to remove them, short of using @code{exec} to load a new -pocess image. - -@end deftypefun - -To understand the purpose of @code{pthread_atfork}, recall that -@code{fork} duplicates the whole memory space, including mutexes in -their current locking state, but only the calling thread: other threads -are not running in the child process. The mutexes are not usable after -the @code{fork} and must be initialized with @code{pthread_mutex_init} -in the child process. This is a limitation of the current -implementation and might or might not be present in future versions. - -To avoid this, install handlers with @code{pthread_atfork} as follows: have the -@var{prepare} handler lock the mutexes (in locking order), and the -@var{parent} handler unlock the mutexes. The @var{child} handler should reset -the mutexes using @code{pthread_mutex_init}, as well as any other -synchronization objects such as condition variables. - -Locking the global mutexes before the fork ensures that all other threads are -locked out of the critical regions of code protected by those mutexes. Thus -when @code{fork} takes a snapshot of the parent's address space, that snapshot -will copy valid, stable data. Resetting the synchronization objects in the -child process will ensure they are properly cleansed of any artifacts from the -threading subsystem of the parent process. For example, a mutex may inherit -a wait queue of threads waiting for the lock; this wait queue makes no sense -in the child process. Initializing the mutex takes care of this. - -@node Streams and Fork -@section Streams and Fork - -The GNU standard I/O library has an internal mutex which guards the internal -linked list of all standard C FILE objects. This mutex is properly taken care -of during @code{fork} so that the child receives an intact copy of the list. -This allows the @code{fopen} function, and related stream-creating functions, -to work correctly in the child process, since these functions need to insert -into the list. - -However, the individual stream locks are not completely taken care of. Thus -unless the multithreaded application takes special precautions in its use of -@code{fork}, the child process might not be able to safely use the streams that -it inherited from the parent. In general, for any given open stream in the -parent that is to be used by the child process, the application must ensure -that that stream is not in use by another thread when @code{fork} is called. -Otherwise an inconsistent copy of the stream object be produced. An easy way to -ensure this is to use @code{flockfile} to lock the stream prior to calling -@code{fork} and then unlock it with @code{funlockfile} inside the parent -process, provided that the parent's threads properly honor these locks. -Nothing special needs to be done in the child process, since the library -internally resets all stream locks. - -Note that the stream locks are not shared between the parent and child. -For example, even if you ensure that, say, the stream @code{stdout} is properly -treated and can be safely used in the child, the stream locks do not provide -an exclusion mechanism between the parent and child. If both processes write -to @code{stdout}, strangely interleaved output may result regardless of -the explicit use of @code{flockfile} or implicit locks. - -Also note that these provisions are a GNU extension; other systems might not -provide any way for streams to be used in the child of a multithreaded process. -POSIX requires that such a child process confines itself to calling only -asynchronous safe functions, which excludes much of the library, including -standard I/O. - -@node Miscellaneous Thread Functions -@section Miscellaneous Thread Functions - -@comment pthread.h -@comment POSIX -@deftypefun {pthread_t} pthread_self (@var{void}) -@code{pthread_self} returns the thread identifier for the calling thread. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_equal (pthread_t thread1, pthread_t thread2) -@code{pthread_equal} determines if two thread identifiers refer to the same -thread. - -A non-zero value is returned if @var{thread1} and @var{thread2} refer to -the same thread. Otherwise, 0 is returned. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_detach (pthread_t @var{th}) -@code{pthread_detach} puts the thread @var{th} in the detached -state. This guarantees that the memory resources consumed by @var{th} -will be freed immediately when @var{th} terminates. However, this -prevents other threads from synchronizing on the termination of @var{th} -using @code{pthread_join}. - -A thread can be created initially in the detached state, using the -@code{detachstate} attribute to @code{pthread_create}. In contrast, -@code{pthread_detach} applies to threads created in the joinable state, -and which need to be put in the detached state later. - -After @code{pthread_detach} completes, subsequent attempts to perform -@code{pthread_join} on @var{th} will fail. If another thread is already -joining the thread @var{th} at the time @code{pthread_detach} is called, -@code{pthread_detach} does nothing and leaves @var{th} in the joinable -state. - -On success, 0 is returned. On error, one of the following codes is -returned: -@table @code -@item ESRCH -No thread could be found corresponding to that specified by @var{th} -@item EINVAL -The thread @var{th} is already in the detached state -@end table -@end deftypefun - -@comment pthread.h -@comment GNU -@deftypefun void pthread_kill_other_threads_np (@var{void}) -@code{pthread_kill_other_threads_np} is a non-portable LinuxThreads extension. -It causes all threads in the program to terminate immediately, except -the calling thread which proceeds normally. It is intended to be -called just before a thread calls one of the @code{exec} functions, -e.g. @code{execve}. - -Termination of the other threads is not performed through -@code{pthread_cancel} and completely bypasses the cancellation -mechanism. Hence, the current settings for cancellation state and -cancellation type are ignored, and the cleanup handlers are not -executed in the terminated threads. - -According to POSIX 1003.1c, a successful @code{exec*} in one of the -threads should automatically terminate all other threads in the program. -This behavior is not yet implemented in LinuxThreads. Calling -@code{pthread_kill_other_threads_np} before @code{exec*} achieves much -of the same behavior, except that if @code{exec*} ultimately fails, then -all other threads are already killed. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_once (pthread_once_t *once_@var{control}, void (*@var{init_routine}) (void)) - -The purpose of @code{pthread_once} is to ensure that a piece of -initialization code is executed at most once. The @var{once_control} -argument points to a static or extern variable statically initialized -to @code{PTHREAD_ONCE_INIT}. - -The first time @code{pthread_once} is called with a given -@var{once_control} argument, it calls @var{init_routine} with no -argument and changes the value of the @var{once_control} variable to -record that initialization has been performed. Subsequent calls to -@code{pthread_once} with the same @code{once_control} argument do -nothing. - -If a thread is cancelled while executing @var{init_routine} -the state of the @var{once_control} variable is reset so that -a future call to @code{pthread_once} will call the routine again. - -If the process forks while one or more threads are executing -@code{pthread_once} initialization routines, the states of their respective -@var{once_control} variables will appear to be reset in the child process so -that if the child calls @code{pthread_once}, the routines will be executed. - -@code{pthread_once} always returns 0. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_setschedparam (pthread_t target_@var{thread}, int @var{policy}, const struct sched_param *@var{param}) - -@code{pthread_setschedparam} sets the scheduling parameters for the -thread @var{target_thread} as indicated by @var{policy} and -@var{param}. @var{policy} can be either @code{SCHED_OTHER} (regular, -non-realtime scheduling), @code{SCHED_RR} (realtime, round-robin) or -@code{SCHED_FIFO} (realtime, first-in first-out). @var{param} specifies -the scheduling priority for the two realtime policies. See -@code{sched_setpolicy} for more information on scheduling policies. - -The realtime scheduling policies @code{SCHED_RR} and @code{SCHED_FIFO} -are available only to processes with superuser privileges. - -On success, @code{pthread_setschedparam} returns 0. On error it returns -one of the following codes: -@table @code -@item EINVAL -@var{policy} is not one of @code{SCHED_OTHER}, @code{SCHED_RR}, -@code{SCHED_FIFO}, or the priority value specified by @var{param} is not -valid for the specified policy - -@item EPERM -Realtime scheduling was requested but the calling process does not have -sufficient privileges. - -@item ESRCH -The @var{target_thread} is invalid or has already terminated - -@item EFAULT -@var{param} points outside the process memory space -@end table -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_getschedparam (pthread_t target_@var{thread}, int *@var{policy}, struct sched_param *@var{param}) - -@code{pthread_getschedparam} retrieves the scheduling policy and -scheduling parameters for the thread @var{target_thread} and stores them -in the locations pointed to by @var{policy} and @var{param}, -respectively. - -@code{pthread_getschedparam} returns 0 on success, or one of the -following error codes on failure: -@table @code -@item ESRCH -The @var{target_thread} is invalid or has already terminated. - -@item EFAULT -@var{policy} or @var{param} point outside the process memory space. - -@end table -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_setconcurrency (int @var{level}) -@code{pthread_setconcurrency} is unused in LinuxThreads due to the lack -of a mapping of user threads to kernel threads. It exists for source -compatibility. It does store the value @var{level} so that it can be -returned by a subsequent call to @code{pthread_getconcurrency}. It takes -no other action however. -@end deftypefun - -@comment pthread.h -@comment POSIX -@deftypefun int pthread_getconcurrency () -@code{pthread_getconcurrency} is unused in LinuxThreads due to the lack -of a mapping of user threads to kernel threads. It exists for source -compatibility. However, it will return the value that was set by the -last call to @code{pthread_setconcurrency}. -@end deftypefun diff --git a/linuxthreads/lockfile.c b/linuxthreads/lockfile.c deleted file mode 100644 index 34055e4115..0000000000 --- a/linuxthreads/lockfile.c +++ /dev/null @@ -1,82 +0,0 @@ -/* lockfile - Handle locking and unlocking of stream. - Copyright (C) 1996, 1998, 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <bits/libc-lock.h> -#include <stdio.h> -#include <pthread.h> -#include "internals.h" -#include "../libio/libioP.h" - -void -__flockfile (FILE *stream) -{ - __pthread_mutex_lock (stream->_lock); -} -#undef _IO_flockfile -strong_alias (__flockfile, _IO_flockfile) -weak_alias (__flockfile, flockfile); - - -void -__funlockfile (FILE *stream) -{ - __pthread_mutex_unlock (stream->_lock); -} -#undef _IO_funlockfile -strong_alias (__funlockfile, _IO_funlockfile) -weak_alias (__funlockfile, funlockfile); - - -int -__ftrylockfile (FILE *stream) -{ - return __pthread_mutex_trylock (stream->_lock); -} -strong_alias (__ftrylockfile, _IO_ftrylockfile) -weak_alias (__ftrylockfile, ftrylockfile); - -void -__flockfilelist(void) -{ - _IO_list_lock(); -} - -void -__funlockfilelist(void) -{ - _IO_list_unlock(); -} - -void -__fresetlockfiles (void) -{ - _IO_ITER i; - - pthread_mutexattr_t attr; - - __pthread_mutexattr_init (&attr); - __pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE_NP); - - for (i = _IO_iter_begin(); i != _IO_iter_end(); i = _IO_iter_next(i)) - __pthread_mutex_init (_IO_iter_file(i)->_lock, &attr); - - __pthread_mutexattr_destroy (&attr); - - _IO_list_resetlock(); -} diff --git a/linuxthreads/man/Makefile b/linuxthreads/man/Makefile deleted file mode 100644 index 4afd2ee15d..0000000000 --- a/linuxthreads/man/Makefile +++ /dev/null @@ -1,31 +0,0 @@ -SOURCES=pthread_atfork.man pthread_attr_init.man pthread_cancel.man \ - pthread_cleanup_push.man pthread_cond_init.man \ - pthread_condattr_init.man pthread_create.man pthread_detach.man \ - pthread_equal.man pthread_exit.man pthread_join.man \ - pthread_key_create.man pthread_mutex_init.man \ - pthread_mutexattr_init.man pthread_once.man pthread_self.man \ - pthread_setschedparam.man pthread_sigmask.man sem_init.man \ - pthread_kill_other_threads_np.man pthread_mutexattr_setkind_np.man - -MANPAGES=$(SOURCES:.man=.3thr) - -PREPRO=perl troffprepro - -MANDIR=/usr/man/man3 - -all: $(MANPAGES) - -.SUFFIXES: .man .3thr - -.man.3thr: - $(PREPRO) $*.man $*.3thr - -$(MANPAGES): troffprepro - -clean: - rm -f *.3thr - rm -f *~ - -install: - install *.3thr $(MANDIR) - @echo "*** Remember to run /usr/sbin/makewhatis `dirname $(MANDIR)` at some point" diff --git a/linuxthreads/man/pthread_atfork.man b/linuxthreads/man/pthread_atfork.man deleted file mode 100644 index b682bed3ac..0000000000 --- a/linuxthreads/man/pthread_atfork.man +++ /dev/null @@ -1,53 +0,0 @@ -.TH PTHREAD_ATFORK 3 LinuxThreads - -.SH NAME -pthread_atfork \- register handlers to be called at fork(2) time - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void)); - -.SH DESCRIPTION - -!pthread_atfork! registers handler functions to be called just before -and just after a new process is created with !fork!(2). The |prepare| -handler will be called from the parent process, just before the new -process is created. The |parent| handler will be called from the parent -process, just before !fork!(2) returns. The |child| handler will be -called from the child process, just before !fork!(2) returns. - -One or several of the three handlers |prepare|, |parent| and |child| -can be given as !NULL!, meaning that no handler needs to be called at -the corresponding point. - -!pthread_atfork! can be called several times to install several sets -of handlers. At !fork!(2) time, the |prepare| handlers are called in -LIFO order (last added with !pthread_atfork!, first called before !fork!), -while the |parent| and |child| handlers are called in FIFO order -(first added, first called). - -To understand the purpose of !pthread_atfork!, recall that !fork!(2) -duplicates the whole memory space, including mutexes in their current -locking state, but only the calling thread: other threads are not -running in the child process. The mutexes are not usable after the -!fork! and must be initialized with |pthread_mutex_init| in the child -process. This is a limitation of the current implementation and might -or might not be present in future versions. - -.SH "RETURN VALUE" - -!pthread_atfork! returns 0 on success and a non-zero error code on error. - -.SH ERRORS -.TP -!ENOMEM! -insufficient memory available to register the handlers. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!fork!(2), -!pthread_mutex_lock!(3), -!pthread_mutex_unlock!(3). diff --git a/linuxthreads/man/pthread_attr_init.man b/linuxthreads/man/pthread_attr_init.man deleted file mode 100644 index bd5a169242..0000000000 --- a/linuxthreads/man/pthread_attr_init.man +++ /dev/null @@ -1,221 +0,0 @@ -.TH PTHREAD_ATTR_INIT 3 LinuxThreads - -.XREF pthread_attr_destroy -.XREF pthread_attr_setdetachstate -.XREF pthread_attr_getdetachstate -.XREF pthread_attr_setschedparam -.XREF pthread_attr_getschedparam -.XREF pthread_attr_setschedpolicy -.XREF pthread_attr_getschedpolicy -.XREF pthread_attr_setinheritsched -.XREF pthread_attr_getinheritsched -.XREF pthread_attr_setscope -.XREF pthread_attr_getscope - -.SH NAME -pthread_attr_init, pthread_attr_destroy, pthread_attr_setdetachstate, pthread_attr_getdetachstate, pthread_attr_setschedparam, pthread_attr_getschedparam, pthread_attr_setschedpolicy, pthread_attr_getschedpolicy, pthread_attr_setinheritsched, pthread_attr_getinheritsched, pthread_attr_setscope, pthread_attr_getscope \- thread creation attributes - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_attr_init(pthread_attr_t *attr); - -int pthread_attr_destroy(pthread_attr_t *attr); - -int pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate); - -int pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate); - -int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy); - -int pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy); - -int pthread_attr_setschedparam(pthread_attr_t *attr, const struct sched_param *param); - -int pthread_attr_getschedparam(const pthread_attr_t *attr, struct sched_param *param); - -int pthread_attr_setinheritsched(pthread_attr_t *attr, int inherit); - -int pthread_attr_getinheritsched(const pthread_attr_t *attr, int *inherit); - -int pthread_attr_setscope(pthread_attr_t *attr, int scope); - -int pthread_attr_getscope(const pthread_attr_t *attr, int *scope); - -.SH DESCRIPTION - -Setting attributes for threads is achieved by filling a -thread attribute object |attr| of type !pthread_attr_t!, then passing it as -second argument to !pthread_create!(3). Passing !NULL! is equivalent to -passing a thread attribute object with all attributes set to their -default values. - -!pthread_attr_init! initializes the thread attribute object |attr| and -fills it with default values for the attributes. (The default values -are listed below for each attribute.) - -Each attribute |attrname| (see below for a list of all attributes) can -be individually set using the function !pthread_attr_set!|attrname| -and retrieved using the function !pthread_attr_get!|attrname|. - -!pthread_attr_destroy! destroys a thread attribute object, which -must not be reused until it is reinitialized. !pthread_attr_destroy! -does nothing in the LinuxThreads implementation. - -Attribute objects are consulted only when creating a new thread. The -same attribute object can be used for creating several -threads. Modifying an attribute object after a call to -!pthread_create! does not change the attributes of the thread -previously created. - -The following thread attributes are supported: - -.SS detachstate - -Control whether the thread is created in the joinable state (value -!PTHREAD_CREATE_JOINABLE!) or in the detached state -(!PTHREAD_CREATE_DETACHED!). - -Default value: !PTHREAD_CREATE_JOINABLE!. - -In the joinable state, another thread can synchronize on the thread -termination and recover its termination code using !pthread_join!(3), -but some of the thread resources are kept allocated after the thread -terminates, and reclaimed only when another thread performs -!pthread_join!(3) on that thread. - -In the detached state, the thread resources are immediately freed when -it terminates, but !pthread_join!(3) cannot be used to synchronize on -the thread termination. - -A thread created in the joinable state can later be put in the -detached thread using !pthread_detach!(3). - -.SS schedpolicy - -Select the scheduling policy for the thread: one of -!SCHED_OTHER! (regular, non-realtime scheduling), -!SCHED_RR! (realtime, round-robin) or -!SCHED_FIFO! (realtime, first-in first-out). See -!sched_setpolicy!(2) for more information on scheduling policies. - -Default value: !SCHED_OTHER!. - -The realtime scheduling policies !SCHED_RR! and !SCHED_FIFO! are -available only to processes with superuser privileges. - -The scheduling policy of a thread can be changed after creation with -!pthread_setschedparam!(3). - -.SS schedparam - -Contain the scheduling parameters (essentially, the scheduling -priority) for the thread. See !sched_setparam!(2) for more information -on scheduling parameters. - -Default value: priority is 0. - -This attribute is not significant if the scheduling policy is !SCHED_OTHER!; -it only matters for the realtime policies !SCHED_RR! and !SCHED_FIFO!. - -The scheduling priority of a thread can be changed after creation with -!pthread_setschedparam!(3). - -.SS inheritsched - -Indicate whether the scheduling policy and scheduling parameters for -the newly created thread are determined by the values of the -|schedpolicy| and |schedparam| attributes (value -!PTHREAD_EXPLICIT_SCHED!) or are inherited from the parent thread -(value !PTHREAD_INHERIT_SCHED!). - -Default value: !PTHREAD_EXPLICIT_SCHED!. - -.SS scope - -Define the scheduling contention scope for the created thread. The -only value supported in the LinuxThreads implementation is -!PTHREAD_SCOPE_SYSTEM!, meaning that the threads contend for CPU time -with all processes running on the machine. In particular, thread -priorities are interpreted relative to the priorities of all other -processes on the machine. The other value specified by the standard, -!PTHREAD_SCOPE_PROCESS!, means that scheduling contention occurs only -between the threads of the running process: thread priorities are -interpreted relative to the priorities of the other threads of the -process, regardless of the priorities of other processes. -!PTHREAD_SCOPE_PROCESS! is not supported in LinuxThreads. - -Default value: !PTHREAD_SCOPE_SYSTEM!. - -.SH "RETURN VALUE" - -All functions return 0 on success and a non-zero error code on error. -On success, the !pthread_attr_get!|attrname| functions also store the -current value of the attribute |attrname| in the location pointed to -by their second argument. - -.SH ERRORS - -The !pthread_attr_setdetachstate! function returns the following error -codes on error: -.RS -.TP -!EINVAL! -the specified |detachstate| is not one of !PTHREAD_CREATE_JOINABLE! or -!PTHREAD_CREATE_DETACHED!. -.RE - -The !pthread_attr_setschedparam! function returns the following error -codes on error: -.RS -.TP -!EINVAL! -the priority specified in |param| is outside the range of allowed -priorities for the scheduling policy currently in |attr| -(1 to 99 for !SCHED_FIFO! and !SCHED_RR!; 0 for !SCHED_OTHER!). -.RE - -The !pthread_attr_setschedpolicy! function returns the following error -codes on error: -.RS -.TP -!EINVAL! -the specified |policy| is not one of !SCHED_OTHER!, !SCHED_FIFO!, or -!SCHED_RR!. - -.TP -!ENOTSUP! -|policy| is !SCHED_FIFO! or !SCHED_RR!, and the effective user of the -calling process is not super-user. -.RE - -The !pthread_attr_setinheritsched! function returns the following error -codes on error: -.RS -.TP -!EINVAL! -the specified |inherit| is not one of !PTHREAD_INHERIT_SCHED! or -!PTHREAD_EXPLICIT_SCHED!. -.RE - -The !pthread_attr_setscope! function returns the following error -codes on error: -.RS -.TP -!EINVAL! -the specified |scope| is not one of !PTHREAD_SCOPE_SYSTEM! or -!PTHREAD_SCOPE_PROCESS!. - -.TP -!ENOTSUP! -the specified |scope| is !PTHREAD_SCOPE_PROCESS! (not supported). -.RE - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_create!(3), -!pthread_join!(3), -!pthread_detach!(3), -!pthread_setschedparam!(3). diff --git a/linuxthreads/man/pthread_cancel.man b/linuxthreads/man/pthread_cancel.man deleted file mode 100644 index 202d5c9b26..0000000000 --- a/linuxthreads/man/pthread_cancel.man +++ /dev/null @@ -1,155 +0,0 @@ -.TH PTHREAD_CANCEL 3 LinuxThreads - -.XREF pthread_setcancelstate -.XREF pthread_setcanceltype -.XREF pthread_testcancel - -.SH NAME -pthread_cancel, pthread_setcancelstate, pthread_setcanceltype, pthread_testcancel \- thread cancellation - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_cancel(pthread_t thread); - -int pthread_setcancelstate(int state, int *oldstate); - -int pthread_setcanceltype(int type, int *oldtype); - -void pthread_testcancel(void); - -.SH DESCRIPTION - -Cancellation is the mechanism by which a thread can terminate the -execution of another thread. More precisely, a thread can send a -cancellation request to another thread. Depending on its settings, the -target thread can then either ignore the request, honor it -immediately, or defer it till it reaches a cancellation point. - -When a thread eventually honors a cancellation request, it performs as -if !pthread_exit(PTHREAD_CANCELED)! has been called at that point: -all cleanup handlers are executed in reverse order, finalization -functions for thread-specific data are called, and finally the thread -stops executing with the return value !PTHREAD_CANCELED!. See -!pthread_exit!(3) for more information. - -!pthread_cancel! sends a cancellation request to the thread denoted -by the |thread| argument. - -!pthread_setcancelstate! changes the cancellation state for the -calling thread -- that is, whether cancellation requests are ignored -or not. The |state| argument is the new cancellation state: either -!PTHREAD_CANCEL_ENABLE! to enable cancellation, or -!PTHREAD_CANCEL_DISABLE! to disable cancellation (cancellation -requests are ignored). If |oldstate| is not !NULL!, the previous -cancellation state is stored in the location pointed to by |oldstate|, -and can thus be restored later by another call to -!pthread_setcancelstate!. - -!pthread_setcanceltype! changes the type of responses to cancellation -requests for the calling thread: asynchronous (immediate) or deferred. -The |type| argument is the new cancellation type: either -!PTHREAD_CANCEL_ASYNCHRONOUS! to cancel the calling thread as soon as -the cancellation request is received, or !PTHREAD_CANCEL_DEFERRED! to -keep the cancellation request pending until the next cancellation -point. If |oldtype| is not !NULL!, the previous -cancellation state is stored in the location pointed to by |oldtype|, -and can thus be restored later by another call to -!pthread_setcanceltype!. - -Threads are always created by !pthread_create!(3) with cancellation -enabled and deferred. That is, the initial cancellation state is -!PTHREAD_CANCEL_ENABLE! and the initial type is -!PTHREAD_CANCEL_DEFERRED!. - -Cancellation points are those points in the program execution where a -test for pending cancellation requests is performed and cancellation -is executed if positive. The following POSIX threads functions -are cancellation points: - -!pthread_join!(3) -.br -!pthread_cond_wait!(3) -.br -!pthread_cond_timedwait!(3) -.br -!pthread_testcancel!(3) -.br -!sem_wait!(3) -.br -!sigwait!(3) - -All other POSIX threads functions are guaranteed not to be -cancellation points. That is, they never perform cancellation in -deferred cancellation mode. - -!pthread_testcancel! does nothing except testing for pending -cancellation and executing it. Its purpose is to introduce explicit -checks for cancellation in long sequences of code that do not call -cancellation point functions otherwise. - -.SH "RETURN VALUE" - -!pthread_cancel!, !pthread_setcancelstate! and -!pthread_setcanceltype! return 0 on success and a non-zero error code -on error. - -.SH ERRORS -!pthread_cancel! returns the following error code on error: -.RS -.TP -!ESRCH! -no thread could be found corresponding to that specified by the |thread| ID. -.RE - -!pthread_setcancelstate! returns the following error code on error: -.RS -.TP -!EINVAL! -the |state| argument is not !PTHREAD_CANCEL_ENABLE! nor -!PTHREAD_CANCEL_DISABLE! -.RE - -!pthread_setcanceltype! returns the following error code on error: -.RS -.TP -!EINVAL! -the |type| argument is not !PTHREAD_CANCEL_DEFERRED! nor -!PTHREAD_CANCEL_ASYNCHRONOUS! -.RE - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_exit!(3), -!pthread_cleanup_push!(3), -!pthread_cleanup_pop!(3). - -.SH BUGS - -POSIX specifies that a number of system calls (basically, all -system calls that may block, such as !read!(2), !write!(2), !wait!(2), -etc.) and library functions that may call these system calls (e.g. -!fprintf!(3)) are cancellation points. LinuxThreads is not yet -integrated enough with the C library to implement this, and thus none -of the C library functions is a cancellation point. - -For system calls at least, there is a workaround. Cancellation -requests are transmitted to the target thread by sending it a -signal. That signal will interrupt all blocking system calls, causing -them to return immediately with the !EINTR! error. So, checking for -cancellation during a !read! system call, for instance, can be -achieved as follows: - -.RS -.ft 3 -.nf -.sp -pthread_testcancel(); -retcode = read(fd, buffer, length); -pthread_testcancel(); -.ft -.LP -.RE -.fi diff --git a/linuxthreads/man/pthread_cleanup_push.man b/linuxthreads/man/pthread_cleanup_push.man deleted file mode 100644 index 1591431c9c..0000000000 --- a/linuxthreads/man/pthread_cleanup_push.man +++ /dev/null @@ -1,194 +0,0 @@ -.TH PTHREAD_CLEANUP 3 LinuxThreads - -.XREF pthread_cleanup_pop -.XREF pthread_cleanup_push_defer_np -.XREF pthread_cleanup_pop_restore_np - -.SH NAME -pthread_cleanup_push, pthread_cleanup_pop, pthread_cleanup_push_defer_np, pthread_cleanup_pop_restore_np \- install and remove cleanup handlers - -.SH SYNOPSIS -#include <pthread.h> - -void pthread_cleanup_push(void (*routine) (void *), void *arg); - -void pthread_cleanup_pop(int execute); - -void pthread_cleanup_push_defer_np(void (*routine) (void *), void *arg); - -void pthread_cleanup_pop_restore_np(int execute); - -.SH DESCRIPTION - -Cleanup handlers are functions that get called when a thread -terminates, either by calling !pthread_exit!(3) or because of -cancellation. Cleanup handlers are installed and removed following a -stack-like discipline. - -The purpose of cleanup handlers is to free the resources that a thread -may hold at the time it terminates. In particular, if a thread -exits or is cancelled while it owns a locked mutex, the mutex will -remain locked forever and prevent other threads from executing -normally. The best way to avoid this is, just before locking the -mutex, to install a cleanup handler whose effect is to unlock the -mutex. Cleanup handlers can be used similarly to free blocks allocated -with !malloc!(3) or close file descriptors on thread termination. - -!pthread_cleanup_push! installs the |routine| function with argument -|arg| as a cleanup handler. From this point on to the matching -!pthread_cleanup_pop!, the function |routine| will be called with -arguments |arg| when the thread terminates, either through !pthread_exit!(3) -or by cancellation. If several cleanup handlers are active at that -point, they are called in LIFO order: the most recently installed -handler is called first. - -!pthread_cleanup_pop! removes the most recently installed cleanup -handler. If the |execute| argument is not 0, it also executes the -handler, by calling the |routine| function with arguments |arg|. If -the |execute| argument is 0, the handler is only removed but not -executed. - -Matching pairs of !pthread_cleanup_push! and !pthread_cleanup_pop! -must occur in the same function, at the same level of block nesting. -Actually, !pthread_cleanup_push! and !pthread_cleanup_pop! are macros, -and the expansion of !pthread_cleanup_push! introduces an open brace !{! -with the matching closing brace !}! being introduced by the expansion -of the matching !pthread_cleanup_pop!. - -!pthread_cleanup_push_defer_np! is a non-portable extension that -combines !pthread_cleanup_push! and !pthread_setcanceltype!(3). -It pushes a cleanup handler just as !pthread_cleanup_push! does, but -also saves the current cancellation type and sets it to deferred -cancellation. This ensures that the cleanup mechanism is effective -even if the thread was initially in asynchronous cancellation mode. - -!pthread_cleanup_pop_restore_np! pops a cleanup handler introduced by -!pthread_cleanup_push_defer_np!, and restores the cancellation type to -its value at the time !pthread_cleanup_push_defer_np! was called. - -!pthread_cleanup_push_defer_np! and !pthread_cleanup_pop_restore_np! -must occur in matching pairs, at the same level of block nesting. - -The following sequence - -.RS -.ft 3 -.nf -.sp -pthread_cleanup_push_defer_np(routine, arg); -... -pthread_cleanup_pop_defer_np(execute); -.ft -.LP -.RE -.fi - -is functionally equivalent to (but more compact and more efficient than) - -.RS -.ft 3 -.nf -.sp -{ int oldtype; - pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, &oldtype); - pthread_cleanup_push(routine, arg); - ... - pthread_cleanup_pop(execute); - pthread_setcanceltype(oldtype, NULL); -} -.ft -.LP -.RE -.fi - -.SH "RETURN VALUE" - -None. - -.SH ERRORS - -None. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_exit!(3), -!pthread_cancel!(3), -!pthread_setcanceltype!(3). - -.SH EXAMPLE - -Here is how to lock a mutex |mut| in such a way that it will be -unlocked if the thread is canceled while |mut| is locked: - -.RS -.ft 3 -.nf -.sp -pthread_cleanup_push(pthread_mutex_unlock, (void *) &mut); -pthread_mutex_lock(&mut); -/* do some work */ -pthread_mutex_unlock(&mut); -pthread_cleanup_pop(0); -.ft -.LP -.RE -.fi - -Equivalently, the last two lines can be replaced by - -.RS -.ft 3 -.nf -.sp -pthread_cleanup_pop(1); -.ft -.LP -.RE -.fi - -Notice that the code above is safe only in deferred cancellation mode -(see !pthread_setcanceltype!(3)). In asynchronous cancellation mode, -a cancellation can occur between !pthread_cleanup_push! and -!pthread_mutex_lock!, or between !pthread_mutex_unlock! and -!pthread_cleanup_pop!, resulting in both cases in the thread trying to -unlock a mutex not locked by the current thread. This is the main -reason why asynchronous cancellation is difficult to use. - -If the code above must also work in asynchronous cancellation mode, -then it must switch to deferred mode for locking and unlocking the -mutex: - -.RS -.ft 3 -.nf -.sp -pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, &oldtype); -pthread_cleanup_push(pthread_mutex_unlock, (void *) &mut); -pthread_mutex_lock(&mut); -/* do some work */ -pthread_cleanup_pop(1); -pthread_setcanceltype(oldtype, NULL); -.ft -.LP -.RE -.fi - -The code above can be rewritten in a more compact and more -efficient way, using the non-portable functions -!pthread_cleanup_push_defer_np! and !pthread_cleanup_pop_restore_np!: - -.RS -.ft 3 -.nf -.sp -pthread_cleanup_push_restore_np(pthread_mutex_unlock, (void *) &mut); -pthread_mutex_lock(&mut); -/* do some work */ -pthread_cleanup_pop_restore_np(1); -.ft -.LP -.RE -.fi - diff --git a/linuxthreads/man/pthread_cond_init.man b/linuxthreads/man/pthread_cond_init.man deleted file mode 100644 index 4913062fd2..0000000000 --- a/linuxthreads/man/pthread_cond_init.man +++ /dev/null @@ -1,234 +0,0 @@ -.TH PTHREAD_COND 3 LinuxThreads - -.XREF pthread_cond_signal -.XREF pthread_cond_broadcast -.XREF pthread_cond_wait -.XREF pthread_cond_timedwait -.XREF pthread_cond_destroy - -.SH NAME -pthread_cond_init, pthread_cond_destroy, pthread_cond_signal, pthread_cond_broadcast, pthread_cond_wait, pthread_cond_timedwait \- operations on conditions - -.SH SYNOPSIS -#include <pthread.h> - -pthread_cond_t cond = PTHREAD_COND_INITIALIZER; - -int pthread_cond_init(pthread_cond_t *cond, pthread_condattr_t *cond_attr); - -int pthread_cond_signal(pthread_cond_t *cond); - -int pthread_cond_broadcast(pthread_cond_t *cond); - -int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex); - -int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, const struct timespec *abstime); - -int pthread_cond_destroy(pthread_cond_t *cond); - -.SH DESCRIPTION - -A condition (short for ``condition variable'') is a synchronization -device that allows threads to suspend execution and relinquish the -processors until some predicate on shared data is satisfied. The basic -operations on conditions are: signal the condition (when the -predicate becomes true), and wait for the condition, suspending the -thread execution until another thread signals the condition. - -A condition variable must always be associated with a mutex, to avoid -the race condition where a thread prepares to wait on a condition -variable and another thread signals the condition just before the -first thread actually waits on it. - -!pthread_cond_init! initializes the condition variable |cond|, using the -condition attributes specified in |cond_attr|, or default attributes -if |cond_attr| is !NULL!. The LinuxThreads implementation supports no -attributes for conditions, hence the |cond_attr| parameter is actually -ignored. - -Variables of type !pthread_cond_t! can also be initialized -statically, using the constant !PTHREAD_COND_INITIALIZER!. - -!pthread_cond_signal! restarts one of the threads that are waiting on -the condition variable |cond|. If no threads are waiting on |cond|, -nothing happens. If several threads are waiting on |cond|, exactly one -is restarted, but it is not specified which. - -!pthread_cond_broadcast! restarts all the threads that are waiting on -the condition variable |cond|. Nothing happens if no threads are -waiting on |cond|. - -!pthread_cond_wait! atomically unlocks the |mutex| (as per -!pthread_unlock_mutex!) and waits for the condition variable |cond| to -be signaled. The thread execution is suspended and does not consume -any CPU time until the condition variable is signaled. The |mutex| -must be locked by the calling thread on entrance to -!pthread_cond_wait!. Before returning to the calling thread, -!pthread_cond_wait! re-acquires |mutex| (as per !pthread_lock_mutex!). - -Unlocking the mutex and suspending on the condition variable is done -atomically. Thus, if all threads always acquire the mutex before -signaling the condition, this guarantees that the condition cannot be -signaled (and thus ignored) between the time a thread locks the mutex -and the time it waits on the condition variable. - -!pthread_cond_timedwait! atomically unlocks |mutex| and waits on -|cond|, as !pthread_cond_wait! does, but it also bounds the duration -of the wait. If |cond| has not been signaled within the amount of time -specified by |abstime|, the mutex |mutex| is re-acquired and -!pthread_cond_timedwait! returns the error !ETIMEDOUT!. -The |abstime| parameter specifies an absolute time, with the same -origin as !time!(2) and !gettimeofday!(2): an |abstime| of 0 -corresponds to 00:00:00 GMT, January 1, 1970. - -!pthread_cond_destroy! destroys a condition variable, freeing the -resources it might hold. No threads must be waiting on the condition -variable on entrance to !pthread_cond_destroy!. In the LinuxThreads -implementation, no resources are associated with condition variables, -thus !pthread_cond_destroy! actually does nothing except checking that -the condition has no waiting threads. - -.SH CANCELLATION - -!pthread_cond_wait! and !pthread_cond_timedwait! are cancellation -points. If a thread is cancelled while suspended in one of these -functions, the thread immediately resumes execution, then locks again -the |mutex| argument to !pthread_cond_wait! and -!pthread_cond_timedwait!, and finally executes the cancellation. -Consequently, cleanup handlers are assured that |mutex| is locked when -they are called. - -.SH "ASYNC-SIGNAL SAFETY" - -The condition functions are not async-signal safe, and should not be -called from a signal handler. In particular, calling -!pthread_cond_signal! or !pthread_cond_broadcast! from a signal -handler may deadlock the calling thread. - -.SH "RETURN VALUE" - -All condition variable functions return 0 on success and a non-zero -error code on error. - -.SH ERRORS - -!pthread_cond_init!, !pthread_cond_signal!, !pthread_cond_broadcast!, -and !pthread_cond_wait! never return an error code. - -The !pthread_cond_timedwait! function returns the following error codes -on error: -.RS -.TP -!ETIMEDOUT! -the condition variable was not signaled until the timeout specified by -|abstime| - -.TP -!EINTR! -!pthread_cond_timedwait! was interrupted by a signal -.RE - -The !pthread_cond_destroy! function returns the following error code -on error: -.RS -.TP -!EBUSY! -some threads are currently waiting on |cond|. -.RE - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_condattr_init!(3), -!pthread_mutex_lock!(3), -!pthread_mutex_unlock!(3), -!gettimeofday!(2), -!nanosleep!(2). - -.SH EXAMPLE - -Consider two shared variables |x| and |y|, protected by the mutex |mut|, -and a condition variable |cond| that is to be signaled whenever |x| -becomes greater than |y|. - -.RS -.ft 3 -.nf -.sp -int x,y; -pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER; -pthread_cond_t cond = PTHREAD_COND_INITIALIZER; -.ft -.LP -.RE -.fi - -Waiting until |x| is greater than |y| is performed as follows: - -.RS -.ft 3 -.nf -.sp -pthread_mutex_lock(&mut); -while (x <= y) { - pthread_cond_wait(&cond, &mut); -} -/* operate on x and y */ -pthread_mutex_unlock(&mut); -.ft -.LP -.RE -.fi - -Modifications on |x| and |y| that may cause |x| to become greater than -|y| should signal the condition if needed: - -.RS -.ft 3 -.nf -.sp -pthread_mutex_lock(&mut); -/* modify x and y */ -if (x > y) pthread_cond_broadcast(&cond); -pthread_mutex_unlock(&mut); -.ft -.LP -.RE -.fi - -If it can be proved that at most one waiting thread needs to be waken -up (for instance, if there are only two threads communicating through -|x| and |y|), !pthread_cond_signal! can be used as a slightly more -efficient alternative to !pthread_cond_broadcast!. In doubt, use -!pthread_cond_broadcast!. - -To wait for |x| to becomes greater than |y| with a timeout of 5 -seconds, do: - -.RS -.ft 3 -.nf -.sp -struct timeval now; -struct timespec timeout; -int retcode; - -pthread_mutex_lock(&mut); -gettimeofday(&now); -timeout.tv_sec = now.tv_sec + 5; -timeout.tv_nsec = now.tv_usec * 1000; -retcode = 0; -while (x <= y && retcode != ETIMEDOUT) { - retcode = pthread_cond_timedwait(&cond, &mut, &timeout); -} -if (retcode == ETIMEDOUT) { - /* timeout occurred */ -} else { - /* operate on x and y */ -} -pthread_mutex_unlock(&mut); -.ft -.LP -.RE -.fi diff --git a/linuxthreads/man/pthread_condattr_init.man b/linuxthreads/man/pthread_condattr_init.man deleted file mode 100644 index f491cbedbe..0000000000 --- a/linuxthreads/man/pthread_condattr_init.man +++ /dev/null @@ -1,39 +0,0 @@ -.TH PTHREAD_CONDATTR 3 LinuxThreads - -.XREF pthread_condattr_destroy - -.SH NAME -pthread_condattr_init, pthread_condattr_destroy \- condition creation attributes - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_condattr_init(pthread_condattr_t *attr); - -int pthread_condattr_destroy(pthread_condattr_t *attr); - -.SH DESCRIPTION - -Condition attributes can be specified at condition creation time, by passing a -condition attribute object as second argument to !pthread_cond_init!(3). -Passing !NULL! is equivalent to passing a condition attribute object with -all attributes set to their default values. - -The LinuxThreads implementation supports no attributes for -conditions. The functions on condition attributes are included only -for compliance with the POSIX standard. - -!pthread_condattr_init! initializes the condition attribute object -|attr| and fills it with default values for the attributes. -!pthread_condattr_destroy! destroys a condition attribute object, -which must not be reused until it is reinitialized. Both functions do -nothing in the LinuxThreads implementation. - -.SH "RETURN VALUE" -!pthread_condattr_init! and !pthread_condattr_destroy! always return 0. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_cond_init!(3). diff --git a/linuxthreads/man/pthread_create.man b/linuxthreads/man/pthread_create.man deleted file mode 100644 index a94004767a..0000000000 --- a/linuxthreads/man/pthread_create.man +++ /dev/null @@ -1,46 +0,0 @@ -.TH PTHREAD_CREATE 3 LinuxThreads - -.SH NAME -pthread_create \- create a new thread - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_create(pthread_t * thread, pthread_attr_t * attr, void * (*start_routine)(void *), void * arg); - -.SH DESCRIPTION -!pthread_create! creates a new thread of control that executes -concurrently with the calling thread. The new thread applies the -function |start_routine| passing it |arg| as first argument. The new -thread terminates either explicitly, by calling !pthread_exit!(3), -or implicitly, by returning from the |start_routine| function. The -latter case is equivalent to calling !pthread_exit!(3) with the result -returned by |start_routine| as exit code. - -The |attr| argument specifies thread attributes to be applied to the -new thread. See !pthread_attr_init!(3) for a complete list of thread -attributes. The |attr| argument can also be !NULL!, in which case -default attributes are used: the created thread is joinable (not -detached) and has default (non real-time) scheduling policy. - -.SH "RETURN VALUE" -On success, the identifier of the newly created thread is stored in -the location pointed by the |thread| argument, and a 0 is returned. On -error, a non-zero error code is returned. - -.SH ERRORS -.TP -!EAGAIN! -not enough system resources to create a process for the new thread. -.TP -!EAGAIN! -more than !PTHREAD_THREADS_MAX! threads are already active. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_exit!(3), -!pthread_join!(3), -!pthread_detach!(3), -!pthread_attr_init!(3). diff --git a/linuxthreads/man/pthread_detach.man b/linuxthreads/man/pthread_detach.man deleted file mode 100644 index 7b43f45faa..0000000000 --- a/linuxthreads/man/pthread_detach.man +++ /dev/null @@ -1,44 +0,0 @@ -.TH PTHREAD_DETACH 3 LinuxThreads - -.SH NAME -pthread_detach \- put a running thread in the detached state - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_detach(pthread_t th); - -.SH DESCRIPTION -!pthread_detach! put the thread |th| in the detached state. This -guarantees that the memory resources consumed by |th| will be freed -immediately when |th| terminates. However, this prevents other threads -from synchronizing on the termination of |th| using !pthread_join!. - -A thread can be created initially in the detached state, using the -!detachstate! attribute to !pthread_create!(3). In contrast, -!pthread_detach! applies to threads created in the joinable state, and -which need to be put in the detached state later. - -After !pthread_detach! completes, subsequent attempts to perform -!pthread_join! on |th| will fail. If another thread is already joining -the thread |th| at the time !pthread_detach! is called, -!pthread_detach! does nothing and leaves |th| in the joinable state. - -.SH "RETURN VALUE" -On success, 0 is returned. On error, a non-zero error code is returned. - -.SH ERRORS -.TP -!ESRCH! -No thread could be found corresponding to that specified by |th| -.TP -!EINVAL! -the thread |th| is already in the detached state - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_create!(3), -!pthread_join!(3), -!pthread_attr_setdetachstate!(3).
\ No newline at end of file diff --git a/linuxthreads/man/pthread_equal.man b/linuxthreads/man/pthread_equal.man deleted file mode 100644 index 1a0396515a..0000000000 --- a/linuxthreads/man/pthread_equal.man +++ /dev/null @@ -1,23 +0,0 @@ -.TH PTHREAD_EQUAL 3 LinuxThreads - -.SH NAME -pthread_equal \- compare two thread identifiers - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_equal(pthread_t thread1, pthread_t thread2); - -.SH DESCRIPTION -!pthread_equal! determines if two thread identifiers refer to the same -thread. - -.SH "RETURN VALUE" -A non-zero value is returned if |thread1| and |thread2| refer to the -same thread. Otherwise, 0 is returned. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_self!(3). diff --git a/linuxthreads/man/pthread_exit.man b/linuxthreads/man/pthread_exit.man deleted file mode 100644 index 54751e9d05..0000000000 --- a/linuxthreads/man/pthread_exit.man +++ /dev/null @@ -1,32 +0,0 @@ -.TH PTHREAD_EXIT 3 LinuxThreads - -.SH NAME -pthread_exit \- terminate the calling thread - -.SH SYNOPSIS -#include <pthread.h> - -void pthread_exit(void *retval); - -.SH DESCRIPTION -!pthread_exit! terminates the execution of the calling thread. -All cleanup handlers that have been set for the calling thread with -!pthread_cleanup_push!(3) are executed in reverse order (the most -recently pushed handler is executed first). Finalization functions for -thread-specific data are then called for all keys that have non-!NULL! -values associated with them in the calling thread (see -!pthread_key_create!(3)). Finally, execution of the calling thread is -stopped. - -The |retval| argument is the return value of the thread. It can be -consulted from another thread using !pthread_join!(3). - -.SH "RETURN VALUE" -The !pthread_exit! function never returns. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_create!(3), -!pthread_join!(3). diff --git a/linuxthreads/man/pthread_join.man b/linuxthreads/man/pthread_join.man deleted file mode 100644 index d587093841..0000000000 --- a/linuxthreads/man/pthread_join.man +++ /dev/null @@ -1,70 +0,0 @@ -.TH PTHREAD_JOIN 3 LinuxThreads - -.SH NAME -pthread_join \- wait for termination of another thread - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_join(pthread_t th, void **thread_return); - -.SH DESCRIPTION -!pthread_join! suspends the execution of the calling thread until the -thread identified by |th| terminates, either by calling !pthread_exit!(3) -or by being cancelled. - -If |thread_return| is not !NULL!, the return value of |th| is stored -in the location pointed to by |thread_return|. The return value of -|th| is either the argument it gave to !pthread_exit!(3), or -!PTHREAD_CANCELED! if |th| was cancelled. - -The joined thread !th! must be in the joinable state: it must not have -been detached using !pthread_detach!(3) or the -!PTHREAD_CREATE_DETACHED! attribute to !pthread_create!(3). - -When a joinable thread terminates, its memory resources (thread -descriptor and stack) are not deallocated until another thread -performs !pthread_join! on it. Therefore, !pthread_join! must be -called once for each joinable thread created to avoid memory leaks. - -At most one thread can wait for the termination of a given -thread. Calling !pthread_join! on a thread |th| on which another -thread is already waiting for termination returns an error. - -.SH CANCELLATION - -!pthread_join! is a cancellation point. If a thread is canceled while -suspended in !pthread_join!, the thread execution resumes immediately -and the cancellation is executed without waiting for the |th| thread -to terminate. If cancellation occurs during !pthread_join!, the |th| -thread remains not joined. - -.SH "RETURN VALUE" -On success, the return value of |th| is stored in the location pointed -to by |thread_return|, and 0 is returned. On error, a non-zero error -code is returned. - -.SH ERRORS -.TP -!ESRCH! -No thread could be found corresponding to that specified by |th|. -.TP -!EINVAL! -The |th| thread has been detached. -.TP -!EINVAL! -Another thread is already waiting on termination of |th|. -.TP -!EDEADLK! -The |th| argument refers to the calling thread. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_exit!(3), -!pthread_detach!(3), -!pthread_create!(3), -!pthread_attr_setdetachstate!(3), -!pthread_cleanup_push!(3), -!pthread_key_create!(3). diff --git a/linuxthreads/man/pthread_key_create.man b/linuxthreads/man/pthread_key_create.man deleted file mode 100644 index 6823e304c9..0000000000 --- a/linuxthreads/man/pthread_key_create.man +++ /dev/null @@ -1,151 +0,0 @@ -.TH PTHREAD_SPECIFIC 3 LinuxThreads - -.SH NAME -pthread_key_create, pthread_key_delete, pthread_setspecific, pthread_getspecific \- management of thread-specific data - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_key_create(pthread_key_t *key, void (*destr_function) (void *)); - -int pthread_key_delete(pthread_key_t key); - -int pthread_setspecific(pthread_key_t key, const void *pointer); - -void * pthread_getspecific(pthread_key_t key); - -.SH DESCRIPTION - -Programs often need global or static variables that have different -values in different threads. Since threads share one memory space, -this cannot be achieved with regular variables. Thread-specific data -is the POSIX threads answer to this need. - -Each thread possesses a private memory block, the thread-specific data -area, or TSD area for short. This area is indexed by TSD keys. The TSD -area associates values of type !void *! to TSD keys. TSD keys are -common to all threads, but the value associated with a given TSD key -can be different in each thread. - -For concreteness, the TSD areas can be viewed as arrays of !void *! -pointers, TSD keys as integer indices into these arrays, and the value -of a TSD key as the value of the corresponding array element in the -calling thread. - -When a thread is created, its TSD area initially associates !NULL! -with all keys. - -!pthread_key_create! allocates a new TSD key. The key is stored in the -location pointed to by |key|. There is a limit of !PTHREAD_KEYS_MAX! -on the number of keys allocated at a given time. The value initially -associated with the returned key is !NULL! in all currently executing -threads. - -The |destr_function| argument, if not !NULL!, specifies a destructor -function associated with the key. When a thread terminates via -!pthread_exit! or by cancellation, |destr_function| is called with -arguments the value associated with the key in that thread. The -|destr_function| is not called if that value is !NULL!. The order in -which destructor functions are called at thread termination time is -unspecified. - -Before the destructor function is called, the !NULL! value is -associated with the key in the current thread. A destructor function -might, however, re-associate non-!NULL! values to that key or some -other key. To deal with this, if after all the destructors have been -called for all non-!NULL! values, there are still some non-!NULL! -values with associated destructors, then the process is repeated. The -LinuxThreads implementation stops the process after -!PTHREAD_DESTRUCTOR_ITERATIONS! iterations, even if some non-!NULL! -values with associated descriptors remain. Other implementations may -loop indefinitely. - -!pthread_key_delete! deallocates a TSD key. It does not check whether -non-!NULL! values are associated with that key in the currently -executing threads, nor call the destructor function associated with -the key. - -!pthread_setspecific! changes the value associated with |key| in the -calling thread, storing the given |pointer| instead. - -!pthread_getspecific! returns the value currently associated with -|key| in the calling thread. - -.SH "RETURN VALUE" - -!pthread_key_create!, !pthread_key_delete!, and !pthread_setspecific! -return 0 on success and a non-zero error code on failure. If -successful, !pthread_key_create! stores the newly allocated key in the -location pointed to by its |key| argument. - -!pthread_getspecific! returns the value associated with |key| on -success, and !NULL! on error. - -.SH ERRORS -!pthread_key_create! returns the following error code on error: -.RS -.TP -!EAGAIN! -!PTHREAD_KEYS_MAX! keys are already allocated -.RE - -!pthread_key_delete! and !pthread_setspecific! return the following -error code on error: -.RS -.TP -!EINVAL! -|key| is not a valid, allocated TSD key -.RE - -!pthread_getspecific! returns !NULL! if |key| is not a valid, -allocated TSD key. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -pthread_create(3), pthread_exit(3), pthread_testcancel(3). - -.SH EXAMPLE - -The following code fragment allocates a thread-specific array of 100 -characters, with automatic reclaimation at thread exit: - -.RS -.ft 3 -.nf -.sp -/* Key for the thread-specific buffer */ -static pthread_key_t buffer_key; - -/* Once-only initialisation of the key */ -static pthread_once_t buffer_key_once = PTHREAD_ONCE_INIT; - -/* Allocate the thread-specific buffer */ -void buffer_alloc(void) -{ - pthread_once(&buffer_key_once, buffer_key_alloc); - pthread_setspecific(buffer_key, malloc(100)); -} - -/* Return the thread-specific buffer */ -char * get_buffer(void) -{ - return (char *) pthread_getspecific(buffer_key); -} - -/* Allocate the key */ -static void buffer_key_alloc() -{ - pthread_key_create(&buffer_key, buffer_destroy); -} - -/* Free the thread-specific buffer */ -static void buffer_destroy(void * buf) -{ - free(buf); -} -.ft -.LP -.RE -.fi diff --git a/linuxthreads/man/pthread_kill_other_threads_np.man b/linuxthreads/man/pthread_kill_other_threads_np.man deleted file mode 100644 index 0de42d52d5..0000000000 --- a/linuxthreads/man/pthread_kill_other_threads_np.man +++ /dev/null @@ -1,40 +0,0 @@ -.TH PTHREAD_KILL_OTHER_THREADS_NP 3 LinuxThreads - -.SH NAME -pthread_kill_other_threads_np \- terminate all threads in program except calling thread - -.SH SYNOPSIS -#include <pthread.h> - -void pthread_kill_other_threads_np(void); - -.SH DESCRIPTION -!pthread_kill_other_threads_np! is a non-portable LinuxThreads extension. -It causes all threads in the program to terminate immediately, except -the calling thread which proceeds normally. It is intended to be -called just before a thread calls one of the !exec! functions, -e.g. !execve!(2). - -Termination of the other threads is not performed through -!pthread_cancel!(3) and completely bypasses the cancellation -mechanism. Hence, the current settings for cancellation state and -cancellation type are ignored, and the cleanup handlers are not -executed in the terminated threads. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!execve!(2), -!pthread_setcancelstate!(3), -!pthread_setcanceltype!(3), -!pthread_cancel!(3). - -.SH BUGS - -According to POSIX 1003.1c, a successful !exec*! in one of the threads -should terminate automatically all other threads in the program. -This behavior is not yet implemented in LinuxThreads. -Calling !pthread_kill_other_threads_np! before !exec*! achieves much -of the same behavior, except that if !exec*! ultimately fails, then -all other threads are already killed. diff --git a/linuxthreads/man/pthread_mutex_init.man b/linuxthreads/man/pthread_mutex_init.man deleted file mode 100644 index 643b007aec..0000000000 --- a/linuxthreads/man/pthread_mutex_init.man +++ /dev/null @@ -1,213 +0,0 @@ -.TH PTHREAD_MUTEX 3 LinuxThreads - -.XREF pthread_mutex_lock -.XREF pthread_mutex_unlock -.XREF pthread_mutex_trylock -.XREF pthread_mutex_destroy - -.SH NAME -pthread_mutex_init, pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_unlock, pthread_mutex_destroy \- operations on mutexes - -.SH SYNOPSIS -#include <pthread.h> - -pthread_mutex_t fastmutex = PTHREAD_MUTEX_INITIALIZER; - -pthread_mutex_t recmutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP; - -pthread_mutex_t errchkmutex = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP; - -int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr); - -int pthread_mutex_lock(pthread_mutex_t *mutex); - -int pthread_mutex_trylock(pthread_mutex_t *mutex); - -int pthread_mutex_unlock(pthread_mutex_t *mutex); - -int pthread_mutex_destroy(pthread_mutex_t *mutex); - -.SH DESCRIPTION -A mutex is a MUTual EXclusion device, and is useful for protecting -shared data structures from concurrent modifications, and implementing -critical sections and monitors. - -A mutex has two possible states: unlocked (not owned by any thread), -and locked (owned by one thread). A mutex can never be owned by two -different threads simultaneously. A thread attempting to lock a mutex -that is already locked by another thread is suspended until the owning -thread unlocks the mutex first. - -!pthread_mutex_init! initializes the mutex object pointed to by -|mutex| according to the mutex attributes specified in |mutexattr|. -If |mutexattr| is !NULL!, default attributes are used instead. - -The LinuxThreads implementation supports only one mutex attributes, -the |mutex kind|, which is either ``fast'', ``recursive'', or -``error checking''. The kind of a mutex determines whether -it can be locked again by a thread that already owns it. -The default kind is ``fast''. See !pthread_mutexattr_init!(3) for more -information on mutex attributes. - -Variables of type !pthread_mutex_t! can also be initialized -statically, using the constants !PTHREAD_MUTEX_INITIALIZER! (for fast -mutexes), !PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP! (for recursive -mutexes), and !PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP! (for error checking -mutexes). - -!pthread_mutex_lock! locks the given mutex. If the mutex is currently -unlocked, it becomes locked and owned by the calling thread, and -!pthread_mutex_lock! returns immediately. If the mutex is already -locked by another thread, !pthread_mutex_lock! suspends the calling -thread until the mutex is unlocked. - -If the mutex is already locked by the calling thread, the behavior of -!pthread_mutex_lock! depends on the kind of the mutex. If the mutex is -of the ``fast'' kind, the calling thread is suspended until the mutex -is unlocked, thus effectively causing the calling thread to -deadlock. If the mutex is of the ``error checking'' kind, -!pthread_mutex_lock! returns immediately with the error code !EDEADLK!. -If the mutex is of the ``recursive'' kind, !pthread_mutex_lock! -succeeds and returns immediately, recording the number of times the -calling thread has locked the mutex. An equal number of -!pthread_mutex_unlock! operations must be performed before the mutex -returns to the unlocked state. - -!pthread_mutex_trylock! behaves identically to !pthread_mutex_lock!, -except that it does not block the calling thread if the mutex is -already locked by another thread (or by the calling thread in the case -of a ``fast'' mutex). Instead, !pthread_mutex_trylock! returns -immediately with the error code !EBUSY!. - -!pthread_mutex_unlock! unlocks the given mutex. The mutex is assumed -to be locked and owned by the calling thread on entrance to -!pthread_mutex_unlock!. If the mutex is of the ``fast'' kind, -!pthread_mutex_unlock! always returns it to the unlocked state. If it -is of the ``recursive'' kind, it decrements the locking count of the -mutex (number of !pthread_mutex_lock! operations performed on it by -the calling thread), and only when this count reaches zero is the -mutex actually unlocked. - -On ``error checking'' mutexes, !pthread_mutex_unlock! actually checks -at run-time that the mutex is locked on entrance, and that it was -locked by the same thread that is now calling !pthread_mutex_unlock!. -If these conditions are not met, an error code is returned and the -mutex remains unchanged. ``Fast'' and ``recursive'' mutexes perform -no such checks, thus allowing a locked mutex to be unlocked by a -thread other than its owner. This is non-portable behavior and must -not be relied upon. - -!pthread_mutex_destroy! destroys a mutex object, freeing the resources -it might hold. The mutex must be unlocked on entrance. In the -LinuxThreads implementation, no resources are associated with mutex -objects, thus !pthread_mutex_destroy! actually does nothing except -checking that the mutex is unlocked. - -.SH CANCELLATION - -None of the mutex functions is a cancellation point, not even -!pthread_mutex_lock!, in spite of the fact that it can suspend a -thread for arbitrary durations. This way, the status of mutexes at -cancellation points is predictable, allowing cancellation handlers to -unlock precisely those mutexes that need to be unlocked before the -thread stops executing. Consequently, threads using deferred -cancellation should never hold a mutex for extended periods of time. - -.SH "ASYNC-SIGNAL SAFETY" - -The mutex functions are not async-signal safe. What this means is that -they should not be called from a signal handler. In particular, -calling !pthread_mutex_lock! or !pthread_mutex_unlock! from a signal -handler may deadlock the calling thread. - -.SH "RETURN VALUE" - -!pthread_mutex_init! always returns 0. The other mutex functions -return 0 on success and a non-zero error code on error. - -.SH ERRORS - -The !pthread_mutex_lock! function returns the following error code -on error: -.RS -.TP -!EINVAL! -the mutex has not been properly initialized. - -.TP -!EDEADLK! -the mutex is already locked by the calling thread -(``error checking'' mutexes only). -.RE - -The !pthread_mutex_trylock! function returns the following error codes -on error: -.RS -.TP -!EBUSY! -the mutex could not be acquired because it was currently locked. - -.TP -!EINVAL! -the mutex has not been properly initialized. -.RE - -The !pthread_mutex_unlock! function returns the following error code -on error: -.RS -.TP -!EINVAL! -the mutex has not been properly initialized. - -.TP -!EPERM! -the calling thread does not own the mutex (``error checking'' mutexes only). -.RE - -The !pthread_mutex_destroy! function returns the following error code -on error: -.RS -.TP -!EBUSY! -the mutex is currently locked. -.RE - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_mutexattr_init!(3), -!pthread_mutexattr_setkind_np!(3), -!pthread_cancel!(3). - -.SH EXAMPLE - -A shared global variable |x| can be protected by a mutex as follows: - -.RS -.ft 3 -.nf -.sp -int x; -pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER; -.ft -.LP -.RE -.fi - -All accesses and modifications to |x| should be bracketed by calls to -!pthread_mutex_lock! and !pthread_mutex_unlock! as follows: - -.RS -.ft 3 -.nf -.sp -pthread_mutex_lock(&mut); -/* operate on x */ -pthread_mutex_unlock(&mut); -.ft -.LP -.RE -.fi - - diff --git a/linuxthreads/man/pthread_mutexattr_init.man b/linuxthreads/man/pthread_mutexattr_init.man deleted file mode 100644 index b838948904..0000000000 --- a/linuxthreads/man/pthread_mutexattr_init.man +++ /dev/null @@ -1,84 +0,0 @@ -.TH PTHREAD_MUTEXATTR 3 LinuxThreads - -.XREF pthread_mutexattr_destroy -.XREF pthread_mutexattr_settype -.XREF pthread_mutexattr_gettype - -.SH NAME -pthread_mutexattr_init, pthread_mutexattr_destroy, pthread_mutexattr_settype, pthread_mutexattr_gettype \- mutex creation attributes - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_mutexattr_init(pthread_mutexattr_t *attr); - -int pthread_mutexattr_destroy(pthread_mutexattr_t *attr); - -int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int kind); - -int pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *kind); - -.SH DESCRIPTION - -Mutex attributes can be specified at mutex creation time, by passing a -mutex attribute object as second argument to !pthread_mutex_init!(3). -Passing !NULL! is equivalent to passing a mutex attribute object with -all attributes set to their default values. - -!pthread_mutexattr_init! initializes the mutex attribute object |attr| -and fills it with default values for the attributes. - -!pthread_mutexattr_destroy! destroys a mutex attribute object, which -must not be reused until it is reinitialized. !pthread_mutexattr_destroy! -does nothing in the LinuxThreads implementation. - -LinuxThreads supports only one mutex attribute: the mutex kind, which -is either !PTHREAD_MUTEX_FAST_NP! for ``fast'' mutexes, -!PTHREAD_MUTEX_RECURSIVE_NP! for ``recursive'' mutexes, -or !PTHREAD_MUTEX_ERRORCHECK_NP! for ``error checking'' mutexes. -As the !NP! suffix indicates, this is a non-portable extension to the -POSIX standard and should not be employed in portable programs. - -The mutex kind determines what happens if a thread attempts to lock a -mutex it already owns with !pthread_mutex_lock!(3). If the mutex is of -the ``fast'' kind, !pthread_mutex_lock!(3) simply suspends the calling -thread forever. If the mutex is of the ``error checking'' kind, -!pthread_mutex_lock!(3) returns immediately with the error code -!EDEADLK!. If the mutex is of the ``recursive'' kind, the call to -!pthread_mutex_lock!(3) returns immediately with a success return -code. The number of times the thread owning the mutex has locked it is -recorded in the mutex. The owning thread must call -!pthread_mutex_unlock!(3) the same number of times before the mutex -returns to the unlocked state. - -The default mutex kind is ``fast'', that is, !PTHREAD_MUTEX_FAST_NP!. - -!pthread_mutexattr_settype! sets the mutex kind attribute in |attr| -to the value specified by |kind|. - -!pthread_mutexattr_gettype! retrieves the current value of the -mutex kind attribute in |attr| and stores it in the location pointed -to by |kind|. - -.SH "RETURN VALUE" -!pthread_mutexattr_init!, !pthread_mutexattr_destroy! and -!pthread_mutexattr_gettype! always return 0. - -!pthread_mutexattr_settype! returns 0 on success and a non-zero -error code on error. - -.SH ERRORS - -On error, !pthread_mutexattr_settype! returns the following error code: -.TP -!EINVAL! -|kind| is neither !PTHREAD_MUTEX_FAST_NP! nor !PTHREAD_MUTEX_RECURSIVE_NP! -nor !PTHREAD_MUTEX_ERRORCHECK_NP! - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_mutex_init!(3), -!pthread_mutex_lock!(3), -!pthread_mutex_unlock!(3). diff --git a/linuxthreads/man/pthread_mutexattr_setkind_np.man b/linuxthreads/man/pthread_mutexattr_setkind_np.man deleted file mode 100644 index e10f47d0e5..0000000000 --- a/linuxthreads/man/pthread_mutexattr_setkind_np.man +++ /dev/null @@ -1,39 +0,0 @@ -.TH PTHREAD_MUTEXATTR_SETKIND_NP 3 LinuxThreads - -.XREF pthread_mutexattr_getkind_np - -.SH NAME -pthread_mutexattr_setkind_np, pthread_mutexattr_getkind_np \- deprecated mutex creation attributes - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind); - -int pthread_mutexattr_getkind_np(const pthread_mutexattr_t *attr, int *kind); - -.SH DESCRIPTION - -These functions are deprecated, use !pthread_mutexattr_settype!(3) -and !pthread_mutexattr_gettype!(3) instead. - -.SH "RETURN VALUE" -!pthread_mutexattr_getkind_np! always returns 0. - -!pthread_mutexattr_setkind_np! returns 0 on success and a non-zero -error code on error. - -.SH ERRORS - -On error, !pthread_mutexattr_setkind_np! returns the following error code: -.TP -!EINVAL! -|kind| is neither !PTHREAD_MUTEX_FAST_NP! nor !PTHREAD_MUTEX_RECURSIVE_NP! -nor !PTHREAD_MUTEX_ERRORCHECK_NP! - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_mutexattr_settype!(3), -!pthread_mutexattr_gettype!(3). diff --git a/linuxthreads/man/pthread_once.man b/linuxthreads/man/pthread_once.man deleted file mode 100644 index e9d117b656..0000000000 --- a/linuxthreads/man/pthread_once.man +++ /dev/null @@ -1,34 +0,0 @@ -.TH PTHREAD_ONCE 3 LinuxThreads - -.SH NAME -pthread_once \- once-only initialization - -.SH SYNOPSIS -#include <pthread.h> - -pthread_once_t once_control = PTHREAD_ONCE_INIT; - -int pthread_once(pthread_once_t *once_control, void (*init_routine) (void)); - -.SH DESCRIPTION - -The purpose of !pthread_once! is to ensure that a piece of -initialization code is executed at most once. The |once_control| -argument points to a static or extern variable statically initialized -to !PTHREAD_ONCE_INIT!. - -The first time !pthread_once! is called with a given |once_control| -argument, it calls |init_routine| with no argument and changes the -value of the |once_control| variable to record that initialization has -been performed. Subsequent calls to !pthread_once! with the same -!once_control! argument do nothing. - -.SH "RETURN VALUE" -!pthread_once! always returns 0. - -.SH ERRORS -None. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - diff --git a/linuxthreads/man/pthread_self.man b/linuxthreads/man/pthread_self.man deleted file mode 100644 index 3aa4a0021e..0000000000 --- a/linuxthreads/man/pthread_self.man +++ /dev/null @@ -1,23 +0,0 @@ -.TH PTHREAD_SELF 3 LinuxThreads - -.SH NAME -pthread_self \- return identifier of current thread - -.SH SYNOPSIS -#include <pthread.h> - -pthread_t pthread_self(void); - -.SH DESCRIPTION -!pthread_self! return the thread identifier for the calling thread. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_equal!(3), -!pthread_join!(3), -!pthread_detach!(3), -!pthread_setschedparam!(3), -!pthread_getschedparam!(3). - diff --git a/linuxthreads/man/pthread_setschedparam.man b/linuxthreads/man/pthread_setschedparam.man deleted file mode 100644 index 3992927837..0000000000 --- a/linuxthreads/man/pthread_setschedparam.man +++ /dev/null @@ -1,79 +0,0 @@ -.TH PTHREAD_SETSCHEDPARAM 3 LinuxThreads - -.XREF pthread_getschedparam - -.SH NAME -pthread_setschedparam, pthread_getschedparam \- control thread scheduling parameters - -.SH SYNOPSIS -#include <pthread.h> - -int pthread_setschedparam(pthread_t target_thread, int policy, const struct sched_param *param); - -int pthread_getschedparam(pthread_t target_thread, int *policy, struct sched_param *param); - -.SH DESCRIPTION - -!pthread_setschedparam! sets the scheduling parameters for the thread -|target_thread| as indicated by |policy| and |param|. |policy| can be -either !SCHED_OTHER! (regular, non-realtime scheduling), !SCHED_RR! -(realtime, round-robin) or !SCHED_FIFO! (realtime, first-in -first-out). |param| specifies the scheduling priority for the two -realtime policies. See !sched_setpolicy!(2) for more information on -scheduling policies. - -The realtime scheduling policies !SCHED_RR! and !SCHED_FIFO! are -available only to processes with superuser privileges. - -!pthread_getschedparam! retrieves the scheduling policy and scheduling -parameters for the thread |target_thread| and store them in the -locations pointed to by |policy| and |param|, respectively. - -.SH "RETURN VALUE" -!pthread_setschedparam! and !pthread_getschedparam! return 0 on -success and a non-zero error code on error. - -.SH ERRORS -On error, !pthread_setschedparam! returns the following error codes: -.RS -.TP -!EINVAL! -|policy| is not one of !SCHED_OTHER!, !SCHED_RR!, !SCHED_FIFO! - -.TP -!EINVAL! -the priority value specified by |param| is not valid for the specified policy - -.TP -!EPERM! -the calling process does not have superuser permissions - -.TP -!ESRCH! -the |target_thread| is invalid or has already terminated - -.TP -!EFAULT! -|param| points outside the process memory space -.RE - -On error, !pthread_getschedparam! returns the following error codes: -.RS -.TP -!ESRCH! -the |target_thread| is invalid or has already terminated - -.TP -!EFAULT! -|policy| or |param| point outside the process memory space -.RE - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!sched_setscheduler!(2), -!sched_getscheduler!(2), -!sched_getparam!(2), -!pthread_attr_setschedpolicy!(3), -!pthread_attr_setschedparam!(3). diff --git a/linuxthreads/man/pthread_sigmask.man b/linuxthreads/man/pthread_sigmask.man deleted file mode 100644 index 784161da2b..0000000000 --- a/linuxthreads/man/pthread_sigmask.man +++ /dev/null @@ -1,123 +0,0 @@ -.TH PTHREAD_SIGNAL 3 LinuxThreads - -.XREF pthread_kill -.XREF sigwait - -.SH NAME -pthread_sigmask, pthread_kill, sigwait \- handling of signals in threads - -.SH SYNOPSIS -#include <pthread.h> -.br -#include <signal.h> - -int pthread_sigmask(int how, const sigset_t *newmask, sigset_t *oldmask); - -int pthread_kill(pthread_t thread, int signo); - -int sigwait(const sigset_t *set, int *sig); - -.SH DESCRIPTION - -!pthread_sigmask! changes the signal mask for the calling thread as -described by the |how| and |newmask| arguments. If |oldmask| is not -!NULL!, the previous signal mask is stored in the location pointed to -by |oldmask|. - -The meaning of the |how| and |newmask| arguments is the same as for -!sigprocmask!(2). If |how| is !SIG_SETMASK!, the signal mask is set to -|newmask|. If |how| is !SIG_BLOCK!, the signals specified to |newmask| -are added to the current signal mask. If |how| is !SIG_UNBLOCK!, the -signals specified to |newmask| are removed from the current signal -mask. - -Recall that signal masks are set on a per-thread basis, but signal -actions and signal handlers, as set with !sigaction!(2), are shared -between all threads. - -!pthread_kill! send signal number |signo| to the thread -|thread|. The signal is delivered and handled as described in -!kill!(2). - -!sigwait! suspends the calling thread until one of the signals -in |set| is delivered to the calling thread. It then stores the number -of the signal received in the location pointed to by |sig| and -returns. The signals in |set| must be blocked and not ignored on -entrance to !sigwait!. If the delivered signal has a signal handler -function attached, that function is |not| called. - -.SH CANCELLATION - -!sigwait! is a cancellation point. - -.SH "RETURN VALUE" - -On success, 0 is returned. On failure, a non-zero error code is returned. - -.SH ERRORS - -The !pthread_sigmask! function returns the following error codes -on error: -.RS -.TP -!EINVAL! -|how| is not one of !SIG_SETMASK!, !SIG_BLOCK!, or !SIG_UNBLOCK! - -.TP -!EFAULT! -|newmask| or |oldmask| point to invalid addresses -.RE - -The !pthread_kill! function returns the following error codes -on error: -.RS -.TP -!EINVAL! -|signo| is not a valid signal number - -.TP -!ESRCH! -the thread |thread| does not exist (e.g. it has already terminated) -.RE - -The !sigwait! function never returns an error. - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!sigprocmask!(2), -!kill!(2), -!sigaction!(2), -!sigsuspend!(2). - -.SH NOTES - -For !sigwait! to work reliably, the signals being waited for must be -blocked in all threads, not only in the calling thread, since -otherwise the POSIX semantics for signal delivery do not guarantee -that it's the thread doing the !sigwait! that will receive the signal. -The best way to achieve this is block those signals before any threads -are created, and never unblock them in the program other than by -calling !sigwait!. - -.SH BUGS - -Signal handling in LinuxThreads departs significantly from the POSIX -standard. According to the standard, ``asynchronous'' (external) -signals are addressed to the whole process (the collection of all -threads), which then delivers them to one particular thread. The -thread that actually receives the signal is any thread that does -not currently block the signal. - -In LinuxThreads, each thread is actually a kernel process with its own -PID, so external signals are always directed to one particular thread. -If, for instance, another thread is blocked in !sigwait! on that -signal, it will not be restarted. - -The LinuxThreads implementation of !sigwait! installs dummy signal -handlers for the signals in |set| for the duration of the wait. Since -signal handlers are shared between all threads, other threads must not -attach their own signal handlers to these signals, or alternatively -they should all block these signals (which is recommended anyway -- -see the Notes section). diff --git a/linuxthreads/man/sem_init.man b/linuxthreads/man/sem_init.man deleted file mode 100644 index e3a1a63e36..0000000000 --- a/linuxthreads/man/sem_init.man +++ /dev/null @@ -1,132 +0,0 @@ -.TH SEMAPHORES 3 LinuxThreads - -.XREF sem_wait -.XREF sem_trywait -.XREF sem_post -.XREF sem_getvalue -.XREF sem_destroy - -.SH NAME -sem_init, sem_wait, sem_trywait, sem_post, sem_getvalue, sem_destroy \- operations on semaphores - -.SH SYNOPSIS -#include <semaphore.h> - -int sem_init(sem_t *sem, int pshared, unsigned int value); - -int sem_wait(sem_t * sem); - -int sem_trywait(sem_t * sem); - -int sem_post(sem_t * sem); - -int sem_getvalue(sem_t * sem, int * sval); - -int sem_destroy(sem_t * sem); - -.SH DESCRIPTION -This manual page documents POSIX 1003.1b semaphores, not to be -confused with SystemV semaphores as described in !ipc!(5), !semctl!(2) -and !semop!(2). - -Semaphores are counters for resources shared between threads. The -basic operations on semaphores are: increment the counter atomically, -and wait until the counter is non-null and decrement it atomically. - -!sem_init! initializes the semaphore object pointed to by |sem|. The -count associated with the semaphore is set initially to |value|. The -|pshared| argument indicates whether the semaphore is local to the -current process (|pshared| is zero) or is to be shared between several -processes (|pshared| is not zero). LinuxThreads currently does not -support process-shared semaphores, thus !sem_init! always returns with -error !ENOSYS! if |pshared| is not zero. - -!sem_wait! suspends the calling thread until the semaphore pointed to -by |sem| has non-zero count. It then atomically decreases the -semaphore count. - -!sem_trywait! is a non-blocking variant of !sem_wait!. If the -semaphore pointed to by |sem| has non-zero count, the count is -atomically decreased and !sem_trywait! immediately returns 0. -If the semaphore count is zero, !sem_trywait! immediately returns with -error !EAGAIN!. - -!sem_post! atomically increases the count of the semaphore pointed to -by |sem|. This function never blocks and can safely be used in -asynchronous signal handlers. - -!sem_getvalue! stores in the location pointed to by |sval| the current -count of the semaphore |sem|. - -!sem_destroy! destroys a semaphore object, freeing the resources it -might hold. No threads should be waiting on the semaphore at the time -!sem_destroy! is called. In the LinuxThreads implementation, no -resources are associated with semaphore objects, thus !sem_destroy! -actually does nothing except checking that no thread is waiting on the -semaphore. - -.SH CANCELLATION - -!sem_wait! is a cancellation point. - -.SH "ASYNC-SIGNAL SAFETY" - -On processors supporting atomic compare-and-swap (Intel 486, Pentium -and later, Alpha, PowerPC, MIPS II, Motorola 68k), the !sem_post! -function is async-signal safe and can therefore be -called from signal handlers. This is the only thread synchronization -function provided by POSIX threads that is async-signal safe. - -On the Intel 386 and the Sparc, the current LinuxThreads -implementation of !sem_post! is not async-signal safe by lack of the -required atomic operations. - -.SH "RETURN VALUE" - -The !sem_wait! and !sem_getvalue! functions always return 0. -All other semaphore functions return 0 on success and -1 on error, in -addition to writing an error code in !errno!. - -.SH ERRORS - -The !sem_init! function sets !errno! to the following codes on error: -.RS -.TP -!EINVAL! -|value| exceeds the maximal counter value !SEM_VALUE_MAX! -.TP -!ENOSYS! -|pshared| is not zero -.RE - -The !sem_trywait! function sets !errno! to the following error code on error: -.RS -.TP -!EAGAIN! -the semaphore count is currently 0 -.RE - -The !sem_post! function sets !errno! to the following error code on error: -.RS -.TP -!ERANGE! -after incrementation, the semaphore value would exceed !SEM_VALUE_MAX! -(the semaphore count is left unchanged in this case) -.RE - -The !sem_destroy! function sets !errno! to the following error code on error: -.RS -.TP -!EBUSY! -some threads are currently blocked waiting on the semaphore. -.RE - -.SH AUTHOR -Xavier Leroy <Xavier.Leroy@inria.fr> - -.SH "SEE ALSO" -!pthread_mutex_init!(3), -!pthread_cond_init!(3), -!pthread_cancel!(3), -!ipc!(5). - diff --git a/linuxthreads/man/troffprepro b/linuxthreads/man/troffprepro deleted file mode 100755 index ba564fefbe..0000000000 --- a/linuxthreads/man/troffprepro +++ /dev/null @@ -1,68 +0,0 @@ -#!/usr/local/bin/perl - -$insynopsis = 0; - -open(INPUT, $ARGV[0]) || die("cannot open $ARGV[0]"); -open(OUTPUT, "> $ARGV[1]") || die("cannot create $ARGV[1]"); - -select(OUTPUT); - -line: -while(<INPUT>) { - if (/^\.XREF (.*)$/) { - $xref = $1; - $_ = $ARGV[1]; - m/^.*\.(([1-8]).*)$/; - $suffix = $1; - $extension = $2; - open(XREF, "> $xref.$suffix"); - print XREF ".so man$extension/$ARGV[1]\n"; - close(XREF); - next line; - } - if (/^\.SH/) { - $insynopsis = /SYNOPSIS/; - print $_; - next; - } - if ($insynopsis) { - if (/^#/) { - print ".B ", $_; - } - elsif (/^[a-z]/) { - chop; -# if (m/^([a-zA-Z][a-zA-Z0-9_]*\s+[a-zA-Z][a-zA-Z0-9_]*)\(/) { -# print ".B \"", $1, "\"\n"; -# $_ = '(' . $'; -# } -# s/([a-zA-Z][a-zA-Z0-9_]*)(\s*[,()=])/" \1 "\2/g; - s/([ *])([a-zA-Z][a-zA-Z0-9_]*)(\s*[,)=])/\1" \2 "\3/g; - print ".BI \"", $_, "\"\n"; - } - else { - print $_; - } - next; - } - chop; - s/!([^!]+)!\|([^|]+)\|([^\s]*)\s*/\n.BI "\1" "\2\3"\n/g; - s/([!|])([^!|]+)\1([^\s]*)\s*/do subst($1,$2,$3)/eg; - s/^\n+//; - s/\n+$//; - s/\n\n+/\n/g; - print $_, "\n"; -} - -close(INPUT); -close(OUTPUT); - -sub subst { - local ($a, $b, $c) = @_; - if ($c) { - "\n" . ($a eq "!" ? ".BR " : ".IR ") . "\"$b\" $c\n" - } else { - "\n" . ($a eq "!" ? ".B " : ".I ") . "\"$b\"\n" - } -} - - diff --git a/linuxthreads/manager.c b/linuxthreads/manager.c deleted file mode 100644 index f21a6def6f..0000000000 --- a/linuxthreads/manager.c +++ /dev/null @@ -1,1112 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* The "thread manager" thread: manages creation and termination of threads */ - -#include <assert.h> -#include <errno.h> -#include <sched.h> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <sys/poll.h> /* for poll */ -#include <sys/mman.h> /* for mmap */ -#include <sys/param.h> -#include <sys/time.h> -#include <sys/wait.h> /* for waitpid macros */ -#include <locale.h> /* for __uselocale */ -#include <resolv.h> /* for __resp */ - -#include <ldsodefs.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "restart.h" -#include "semaphore.h" -#include <not-cancel.h> - -/* For debugging purposes put the maximum number of threads in a variable. */ -const int __linuxthreads_pthread_threads_max = PTHREAD_THREADS_MAX; - -#ifndef THREAD_SELF -/* Indicate whether at least one thread has a user-defined stack (if 1), - or if all threads have stacks supplied by LinuxThreads (if 0). */ -int __pthread_nonstandard_stacks; -#endif - -/* Number of active entries in __pthread_handles (used by gdb) */ -volatile int __pthread_handles_num = 2; - -/* Whether to use debugger additional actions for thread creation - (set to 1 by gdb) */ -volatile int __pthread_threads_debug; - -/* Globally enabled events. */ -volatile td_thr_events_t __pthread_threads_events; - -/* Pointer to thread descriptor with last event. */ -volatile pthread_descr __pthread_last_event; - -static pthread_descr manager_thread; - -/* Mapping from stack segment to thread descriptor. */ -/* Stack segment numbers are also indices into the __pthread_handles array. */ -/* Stack segment number 0 is reserved for the initial thread. */ - -#if FLOATING_STACKS -# define thread_segment(seq) NULL -#else -static inline pthread_descr thread_segment(int seg) -{ -# ifdef _STACK_GROWS_UP - return (pthread_descr)(THREAD_STACK_START_ADDRESS + (seg - 1) * STACK_SIZE) - + 1; -# else - return (pthread_descr)(THREAD_STACK_START_ADDRESS - (seg - 1) * STACK_SIZE) - - 1; -# endif -} -#endif - -/* Flag set in signal handler to record child termination */ - -static volatile int terminated_children; - -/* Flag set when the initial thread is blocked on pthread_exit waiting - for all other threads to terminate */ - -static int main_thread_exiting; - -/* Counter used to generate unique thread identifier. - Thread identifier is pthread_threads_counter + segment. */ - -static pthread_t pthread_threads_counter; - -/* Forward declarations */ - -static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr, - void * (*start_routine)(void *), void *arg, - sigset_t *mask, int father_pid, - int report_events, - td_thr_events_t *event_maskp); -static void pthread_handle_free(pthread_t th_id); -static void pthread_handle_exit(pthread_descr issuing_thread, int exitcode) - __attribute__ ((noreturn)); -static void pthread_reap_children(void); -static void pthread_kill_all_threads(int sig, int main_thread_also); -static void pthread_for_each_thread(void *arg, - void (*fn)(void *, pthread_descr)); - -/* The server thread managing requests for thread creation and termination */ - -int -__attribute__ ((noreturn)) -__pthread_manager(void *arg) -{ - pthread_descr self = manager_thread = arg; - int reqfd = __pthread_manager_reader; - struct pollfd ufd; - sigset_t manager_mask; - int n; - struct pthread_request request; - - /* If we have special thread_self processing, initialize it. */ -#ifdef INIT_THREAD_SELF - INIT_THREAD_SELF(self, 1); -#endif -#if !(USE_TLS && HAVE___THREAD) - /* Set the error variable. */ - self->p_errnop = &self->p_errno; - self->p_h_errnop = &self->p_h_errno; -#endif - /* Block all signals except __pthread_sig_cancel and SIGTRAP */ - sigfillset(&manager_mask); - sigdelset(&manager_mask, __pthread_sig_cancel); /* for thread termination */ - sigdelset(&manager_mask, SIGTRAP); /* for debugging purposes */ - if (__pthread_threads_debug && __pthread_sig_debug > 0) - sigdelset(&manager_mask, __pthread_sig_debug); - sigprocmask(SIG_SETMASK, &manager_mask, NULL); - /* Raise our priority to match that of main thread */ - __pthread_manager_adjust_prio(__pthread_main_thread->p_priority); - /* Synchronize debugging of the thread manager */ - n = TEMP_FAILURE_RETRY(read_not_cancel(reqfd, (char *)&request, - sizeof(request))); - ASSERT(n == sizeof(request) && request.req_kind == REQ_DEBUG); - ufd.fd = reqfd; - ufd.events = POLLIN; - /* Enter server loop */ - while(1) { - n = __poll(&ufd, 1, 2000); - - /* Check for termination of the main thread */ - if (getppid() == 1) { - pthread_kill_all_threads(SIGKILL, 0); - _exit(0); - } - /* Check for dead children */ - if (terminated_children) { - terminated_children = 0; - pthread_reap_children(); - } - /* Read and execute request */ - if (n == 1 && (ufd.revents & POLLIN)) { - n = TEMP_FAILURE_RETRY(read_not_cancel(reqfd, (char *)&request, - sizeof(request))); -#ifdef DEBUG - if (n < 0) { - char d[64]; - write(STDERR_FILENO, d, snprintf(d, sizeof(d), "*** read err %m\n")); - } else if (n != sizeof(request)) { - write(STDERR_FILENO, "*** short read in manager\n", 26); - } -#endif - - switch(request.req_kind) { - case REQ_CREATE: - request.req_thread->p_retcode = - pthread_handle_create((pthread_t *) &request.req_thread->p_retval, - request.req_args.create.attr, - request.req_args.create.fn, - request.req_args.create.arg, - &request.req_args.create.mask, - request.req_thread->p_pid, - request.req_thread->p_report_events, - &request.req_thread->p_eventbuf.eventmask); - restart(request.req_thread); - break; - case REQ_FREE: - pthread_handle_free(request.req_args.free.thread_id); - break; - case REQ_PROCESS_EXIT: - pthread_handle_exit(request.req_thread, - request.req_args.exit.code); - /* NOTREACHED */ - break; - case REQ_MAIN_THREAD_EXIT: - main_thread_exiting = 1; - /* Reap children in case all other threads died and the signal handler - went off before we set main_thread_exiting to 1, and therefore did - not do REQ_KICK. */ - pthread_reap_children(); - - if (__pthread_main_thread->p_nextlive == __pthread_main_thread) { - restart(__pthread_main_thread); - /* The main thread will now call exit() which will trigger an - __on_exit handler, which in turn will send REQ_PROCESS_EXIT - to the thread manager. In case you are wondering how the - manager terminates from its loop here. */ - } - break; - case REQ_POST: - __new_sem_post(request.req_args.post); - break; - case REQ_DEBUG: - /* Make gdb aware of new thread and gdb will restart the - new thread when it is ready to handle the new thread. */ - if (__pthread_threads_debug && __pthread_sig_debug > 0) - raise(__pthread_sig_debug); - break; - case REQ_KICK: - /* This is just a prod to get the manager to reap some - threads right away, avoiding a potential delay at shutdown. */ - break; - case REQ_FOR_EACH_THREAD: - pthread_for_each_thread(request.req_args.for_each.arg, - request.req_args.for_each.fn); - restart(request.req_thread); - break; - } - } - } -} - -int __pthread_manager_event(void *arg) -{ - pthread_descr self = arg; - /* If we have special thread_self processing, initialize it. */ -#ifdef INIT_THREAD_SELF - INIT_THREAD_SELF(self, 1); -#endif - - /* Get the lock the manager will free once all is correctly set up. */ - __pthread_lock (THREAD_GETMEM(self, p_lock), NULL); - /* Free it immediately. */ - __pthread_unlock (THREAD_GETMEM(self, p_lock)); - - return __pthread_manager(arg); -} - -/* Process creation */ - -static int -__attribute__ ((noreturn)) -pthread_start_thread(void *arg) -{ - pthread_descr self = (pthread_descr) arg; - struct pthread_request request; - void * outcome; -#if HP_TIMING_AVAIL - hp_timing_t tmpclock; -#endif - /* Initialize special thread_self processing, if any. */ -#ifdef INIT_THREAD_SELF - INIT_THREAD_SELF(self, self->p_nr); -#endif -#if HP_TIMING_AVAIL - HP_TIMING_NOW (tmpclock); - THREAD_SETMEM (self, p_cpuclock_offset, tmpclock); -#endif - /* Make sure our pid field is initialized, just in case we get there - before our father has initialized it. */ - THREAD_SETMEM(self, p_pid, __getpid()); - /* Initial signal mask is that of the creating thread. (Otherwise, - we'd just inherit the mask of the thread manager.) */ - sigprocmask(SIG_SETMASK, &self->p_start_args.mask, NULL); - /* Set the scheduling policy and priority for the new thread, if needed */ - if (THREAD_GETMEM(self, p_start_args.schedpolicy) >= 0) - /* Explicit scheduling attributes were provided: apply them */ - __sched_setscheduler(THREAD_GETMEM(self, p_pid), - THREAD_GETMEM(self, p_start_args.schedpolicy), - &self->p_start_args.schedparam); - else if (manager_thread->p_priority > 0) - /* Default scheduling required, but thread manager runs in realtime - scheduling: switch new thread to SCHED_OTHER policy */ - { - struct sched_param default_params; - default_params.sched_priority = 0; - __sched_setscheduler(THREAD_GETMEM(self, p_pid), - SCHED_OTHER, &default_params); - } -#if !(USE_TLS && HAVE___THREAD) - /* Initialize thread-locale current locale to point to the global one. - With __thread support, the variable's initializer takes care of this. */ - __uselocale (LC_GLOBAL_LOCALE); -#else - /* Initialize __resp. */ - __resp = &self->p_res; -#endif - /* Make gdb aware of new thread */ - if (__pthread_threads_debug && __pthread_sig_debug > 0) { - request.req_thread = self; - request.req_kind = REQ_DEBUG; - TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request, - (char *) &request, sizeof(request))); - suspend(self); - } - /* Run the thread code */ - outcome = self->p_start_args.start_routine(THREAD_GETMEM(self, - p_start_args.arg)); - /* Exit with the given return value */ - __pthread_do_exit(outcome, CURRENT_STACK_FRAME); -} - -static int -__attribute__ ((noreturn)) -pthread_start_thread_event(void *arg) -{ - pthread_descr self = (pthread_descr) arg; - -#ifdef INIT_THREAD_SELF - INIT_THREAD_SELF(self, self->p_nr); -#endif - /* Make sure our pid field is initialized, just in case we get there - before our father has initialized it. */ - THREAD_SETMEM(self, p_pid, __getpid()); - /* Get the lock the manager will free once all is correctly set up. */ - __pthread_lock (THREAD_GETMEM(self, p_lock), NULL); - /* Free it immediately. */ - __pthread_unlock (THREAD_GETMEM(self, p_lock)); - - /* Continue with the real function. */ - pthread_start_thread (arg); -} - -#if defined USE_TLS && !FLOATING_STACKS -# error "TLS can only work with floating stacks" -#endif - -static int pthread_allocate_stack(const pthread_attr_t *attr, - pthread_descr default_new_thread, - int pagesize, - char ** out_new_thread, - char ** out_new_thread_bottom, - char ** out_guardaddr, - size_t * out_guardsize, - size_t * out_stacksize) -{ - pthread_descr new_thread; - char * new_thread_bottom; - char * guardaddr; - size_t stacksize, guardsize; - -#ifdef USE_TLS - /* TLS cannot work with fixed thread descriptor addresses. */ - assert (default_new_thread == NULL); -#endif - - if (attr != NULL && attr->__stackaddr_set) - { -#ifdef _STACK_GROWS_UP - /* The user provided a stack. */ -# ifdef USE_TLS - /* This value is not needed. */ - new_thread = (pthread_descr) attr->__stackaddr; - new_thread_bottom = (char *) new_thread; -# else - new_thread = (pthread_descr) attr->__stackaddr; - new_thread_bottom = (char *) (new_thread + 1); -# endif - guardaddr = attr->__stackaddr + attr->__stacksize; - guardsize = 0; -#else - /* The user provided a stack. For now we interpret the supplied - address as 1 + the highest addr. in the stack segment. If a - separate register stack is needed, we place it at the low end - of the segment, relying on the associated stacksize to - determine the low end of the segment. This differs from many - (but not all) other pthreads implementations. The intent is - that on machines with a single stack growing toward higher - addresses, stackaddr would be the lowest address in the stack - segment, so that it is consistently close to the initial sp - value. */ -# ifdef USE_TLS - new_thread = (pthread_descr) attr->__stackaddr; -# else - new_thread = - (pthread_descr) ((long)(attr->__stackaddr) & -sizeof(void *)) - 1; -# endif - new_thread_bottom = (char *) attr->__stackaddr - attr->__stacksize; - guardaddr = new_thread_bottom; - guardsize = 0; -#endif -#ifndef THREAD_SELF - __pthread_nonstandard_stacks = 1; -#endif -#ifndef USE_TLS - /* Clear the thread data structure. */ - memset (new_thread, '\0', sizeof (*new_thread)); -#endif - stacksize = attr->__stacksize; - } - else - { -#ifdef NEED_SEPARATE_REGISTER_STACK - const size_t granularity = 2 * pagesize; - /* Try to make stacksize/2 a multiple of pagesize */ -#else - const size_t granularity = pagesize; -#endif - void *map_addr; - - /* Allocate space for stack and thread descriptor at default address */ -#if FLOATING_STACKS - if (attr != NULL) - { - guardsize = page_roundup (attr->__guardsize, granularity); - stacksize = __pthread_max_stacksize - guardsize; - stacksize = MIN (stacksize, - page_roundup (attr->__stacksize, granularity)); - } - else - { - guardsize = granularity; - stacksize = __pthread_max_stacksize - guardsize; - } - - map_addr = mmap(NULL, stacksize + guardsize, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - if (map_addr == MAP_FAILED) - /* No more memory available. */ - return -1; - -# ifdef NEED_SEPARATE_REGISTER_STACK - guardaddr = map_addr + stacksize / 2; - if (guardsize > 0) - mprotect (guardaddr, guardsize, PROT_NONE); - - new_thread_bottom = (char *) map_addr; -# ifdef USE_TLS - new_thread = ((pthread_descr) (new_thread_bottom + stacksize - + guardsize)); -# else - new_thread = ((pthread_descr) (new_thread_bottom + stacksize - + guardsize)) - 1; -# endif -# elif _STACK_GROWS_DOWN - guardaddr = map_addr; - if (guardsize > 0) - mprotect (guardaddr, guardsize, PROT_NONE); - - new_thread_bottom = (char *) map_addr + guardsize; -# ifdef USE_TLS - new_thread = ((pthread_descr) (new_thread_bottom + stacksize)); -# else - new_thread = ((pthread_descr) (new_thread_bottom + stacksize)) - 1; -# endif -# elif _STACK_GROWS_UP - guardaddr = map_addr + stacksize; - if (guardsize > 0) - mprotect (guardaddr, guardsize, PROT_NONE); - - new_thread = (pthread_descr) map_addr; -# ifdef USE_TLS - new_thread_bottom = (char *) new_thread; -# else - new_thread_bottom = (char *) (new_thread + 1); -# endif -# else -# error You must define a stack direction -# endif /* Stack direction */ -#else /* !FLOATING_STACKS */ - void *res_addr; - - if (attr != NULL) - { - guardsize = page_roundup (attr->__guardsize, granularity); - stacksize = STACK_SIZE - guardsize; - stacksize = MIN (stacksize, - page_roundup (attr->__stacksize, granularity)); - } - else - { - guardsize = granularity; - stacksize = STACK_SIZE - granularity; - } - -# ifdef NEED_SEPARATE_REGISTER_STACK - new_thread = default_new_thread; - new_thread_bottom = (char *) (new_thread + 1) - stacksize - guardsize; - /* Includes guard area, unlike the normal case. Use the bottom - end of the segment as backing store for the register stack. - Needed on IA64. In this case, we also map the entire stack at - once. According to David Mosberger, that's cheaper. It also - avoids the risk of intermittent failures due to other mappings - in the same region. The cost is that we might be able to map - slightly fewer stacks. */ - - /* First the main stack: */ - map_addr = (caddr_t)((char *)(new_thread + 1) - stacksize / 2); - res_addr = mmap(map_addr, stacksize / 2, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - if (res_addr != map_addr) - { - /* Bad luck, this segment is already mapped. */ - if (res_addr != MAP_FAILED) - munmap(res_addr, stacksize / 2); - return -1; - } - /* Then the register stack: */ - map_addr = (caddr_t)new_thread_bottom; - res_addr = mmap(map_addr, stacksize/2, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - if (res_addr != map_addr) - { - if (res_addr != MAP_FAILED) - munmap(res_addr, stacksize / 2); - munmap((caddr_t)((char *)(new_thread + 1) - stacksize/2), - stacksize/2); - return -1; - } - - guardaddr = new_thread_bottom + stacksize/2; - /* We leave the guard area in the middle unmapped. */ -# else /* !NEED_SEPARATE_REGISTER_STACK */ -# ifdef _STACK_GROWS_DOWN - new_thread = default_new_thread; - new_thread_bottom = (char *) (new_thread + 1) - stacksize; - map_addr = new_thread_bottom - guardsize; - res_addr = mmap(map_addr, stacksize + guardsize, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - if (res_addr != map_addr) - { - /* Bad luck, this segment is already mapped. */ - if (res_addr != MAP_FAILED) - munmap (res_addr, stacksize + guardsize); - return -1; - } - - /* We manage to get a stack. Protect the guard area pages if - necessary. */ - guardaddr = map_addr; - if (guardsize > 0) - mprotect (guardaddr, guardsize, PROT_NONE); -# else - /* The thread description goes at the bottom of this area, and - * the stack starts directly above it. - */ - new_thread = (pthread_descr)((unsigned long)default_new_thread &~ (STACK_SIZE - 1)); - map_addr = mmap(new_thread, stacksize + guardsize, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - if (map_addr == MAP_FAILED) - return -1; - - new_thread_bottom = map_addr + sizeof(*new_thread); - guardaddr = map_addr + stacksize; - if (guardsize > 0) - mprotect (guardaddr, guardsize, PROT_NONE); - -# endif /* stack direction */ -# endif /* !NEED_SEPARATE_REGISTER_STACK */ -#endif /* !FLOATING_STACKS */ - } - *out_new_thread = (char *) new_thread; - *out_new_thread_bottom = new_thread_bottom; - *out_guardaddr = guardaddr; - *out_guardsize = guardsize; -#ifdef NEED_SEPARATE_REGISTER_STACK - *out_stacksize = stacksize / 2; -#else - *out_stacksize = stacksize; -#endif - return 0; -} - -static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr, - void * (*start_routine)(void *), void *arg, - sigset_t * mask, int father_pid, - int report_events, - td_thr_events_t *event_maskp) -{ - size_t sseg; - int pid; - pthread_descr new_thread; - char *stack_addr; - char * new_thread_bottom; - pthread_t new_thread_id; - char *guardaddr = NULL; - size_t guardsize = 0, stksize = 0; - int pagesize = __getpagesize(); - int saved_errno = 0; - -#ifdef USE_TLS - new_thread = _dl_allocate_tls (NULL); - if (new_thread == NULL) - return EAGAIN; -# if TLS_DTV_AT_TP - /* pthread_descr is below TP. */ - new_thread = (pthread_descr) ((char *) new_thread - TLS_PRE_TCB_SIZE); -# endif -#else - /* Prevent warnings. */ - new_thread = NULL; -#endif - - /* First check whether we have to change the policy and if yes, whether - we can do this. Normally this should be done by examining the - return value of the __sched_setscheduler call in pthread_start_thread - but this is hard to implement. FIXME */ - if (attr != NULL && attr->__schedpolicy != SCHED_OTHER && geteuid () != 0) - return EPERM; - /* Find a free segment for the thread, and allocate a stack if needed */ - for (sseg = 2; ; sseg++) - { - if (sseg >= PTHREAD_THREADS_MAX) - { -#ifdef USE_TLS -# if TLS_DTV_AT_TP - new_thread = (pthread_descr) ((char *) new_thread + TLS_PRE_TCB_SIZE); -# endif - _dl_deallocate_tls (new_thread, true); -#endif - return EAGAIN; - } - if (__pthread_handles[sseg].h_descr != NULL) - continue; - if (pthread_allocate_stack(attr, thread_segment(sseg), - pagesize, &stack_addr, &new_thread_bottom, - &guardaddr, &guardsize, &stksize) == 0) - { -#ifdef USE_TLS - new_thread->p_stackaddr = stack_addr; -#else - new_thread = (pthread_descr) stack_addr; -#endif - break; - } - } - __pthread_handles_num++; - /* Allocate new thread identifier */ - pthread_threads_counter += PTHREAD_THREADS_MAX; - new_thread_id = sseg + pthread_threads_counter; - /* Initialize the thread descriptor. Elements which have to be - initialized to zero already have this value. */ -#if !defined USE_TLS || !TLS_DTV_AT_TP - new_thread->p_header.data.tcb = new_thread; - new_thread->p_header.data.self = new_thread; -#endif -#if TLS_MULTIPLE_THREADS_IN_TCB || !defined USE_TLS || !TLS_DTV_AT_TP - new_thread->p_multiple_threads = 1; -#endif - new_thread->p_tid = new_thread_id; - new_thread->p_lock = &(__pthread_handles[sseg].h_lock); - new_thread->p_cancelstate = PTHREAD_CANCEL_ENABLE; - new_thread->p_canceltype = PTHREAD_CANCEL_DEFERRED; -#if !(USE_TLS && HAVE___THREAD) - new_thread->p_errnop = &new_thread->p_errno; - new_thread->p_h_errnop = &new_thread->p_h_errno; - new_thread->p_resp = &new_thread->p_res; -#endif - new_thread->p_guardaddr = guardaddr; - new_thread->p_guardsize = guardsize; - new_thread->p_nr = sseg; - new_thread->p_inheritsched = attr ? attr->__inheritsched : 0; - new_thread->p_alloca_cutoff = stksize / 4 > __MAX_ALLOCA_CUTOFF - ? __MAX_ALLOCA_CUTOFF : stksize / 4; - /* Initialize the thread handle */ - __pthread_init_lock(&__pthread_handles[sseg].h_lock); - __pthread_handles[sseg].h_descr = new_thread; - __pthread_handles[sseg].h_bottom = new_thread_bottom; - /* Determine scheduling parameters for the thread */ - new_thread->p_start_args.schedpolicy = -1; - if (attr != NULL) { - new_thread->p_detached = attr->__detachstate; - new_thread->p_userstack = attr->__stackaddr_set; - - switch(attr->__inheritsched) { - case PTHREAD_EXPLICIT_SCHED: - new_thread->p_start_args.schedpolicy = attr->__schedpolicy; - memcpy (&new_thread->p_start_args.schedparam, &attr->__schedparam, - sizeof (struct sched_param)); - break; - case PTHREAD_INHERIT_SCHED: - new_thread->p_start_args.schedpolicy = __sched_getscheduler(father_pid); - __sched_getparam(father_pid, &new_thread->p_start_args.schedparam); - break; - } - new_thread->p_priority = - new_thread->p_start_args.schedparam.sched_priority; - } - /* Finish setting up arguments to pthread_start_thread */ - new_thread->p_start_args.start_routine = start_routine; - new_thread->p_start_args.arg = arg; - new_thread->p_start_args.mask = *mask; - /* Make the new thread ID available already now. If any of the later - functions fail we return an error value and the caller must not use - the stored thread ID. */ - *thread = new_thread_id; - /* Raise priority of thread manager if needed */ - __pthread_manager_adjust_prio(new_thread->p_priority); - /* Do the cloning. We have to use two different functions depending - on whether we are debugging or not. */ - pid = 0; /* Note that the thread never can have PID zero. */ - if (report_events) - { - /* See whether the TD_CREATE event bit is set in any of the - masks. */ - int idx = __td_eventword (TD_CREATE); - uint32_t mask = __td_eventmask (TD_CREATE); - - if ((mask & (__pthread_threads_events.event_bits[idx] - | event_maskp->event_bits[idx])) != 0) - { - /* Lock the mutex the child will use now so that it will stop. */ - __pthread_lock(new_thread->p_lock, NULL); - - /* We have to report this event. */ -#ifdef NEED_SEPARATE_REGISTER_STACK - /* Perhaps this version should be used on all platforms. But - this requires that __clone2 be uniformly supported - everywhere. - - And there is some argument for changing the __clone2 - interface to pass sp and bsp instead, making it more IA64 - specific, but allowing stacks to grow outward from each - other, to get less paging and fewer mmaps. */ - pid = __clone2(pthread_start_thread_event, - (void **)new_thread_bottom, - (char *)stack_addr - new_thread_bottom, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | - __pthread_sig_cancel, new_thread); -#elif _STACK_GROWS_UP - pid = __clone(pthread_start_thread_event, (void *) new_thread_bottom, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | - __pthread_sig_cancel, new_thread); -#else - pid = __clone(pthread_start_thread_event, stack_addr, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | - __pthread_sig_cancel, new_thread); -#endif - saved_errno = errno; - if (pid != -1) - { - /* Now fill in the information about the new thread in - the newly created thread's data structure. We cannot let - the new thread do this since we don't know whether it was - already scheduled when we send the event. */ - new_thread->p_eventbuf.eventdata = new_thread; - new_thread->p_eventbuf.eventnum = TD_CREATE; - __pthread_last_event = new_thread; - - /* We have to set the PID here since the callback function - in the debug library will need it and we cannot guarantee - the child got scheduled before the debugger. */ - new_thread->p_pid = pid; - - /* Now call the function which signals the event. */ - __linuxthreads_create_event (); - - /* Now restart the thread. */ - __pthread_unlock(new_thread->p_lock); - } - } - } - if (pid == 0) - { -#ifdef NEED_SEPARATE_REGISTER_STACK - pid = __clone2(pthread_start_thread, - (void **)new_thread_bottom, - (char *)stack_addr - new_thread_bottom, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | - __pthread_sig_cancel, new_thread); -#elif _STACK_GROWS_UP - pid = __clone(pthread_start_thread, (void *) new_thread_bottom, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | - __pthread_sig_cancel, new_thread); -#else - pid = __clone(pthread_start_thread, stack_addr, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND | - __pthread_sig_cancel, new_thread); -#endif /* !NEED_SEPARATE_REGISTER_STACK */ - saved_errno = errno; - } - /* Check if cloning succeeded */ - if (pid == -1) { - /* Free the stack if we allocated it */ - if (attr == NULL || !attr->__stackaddr_set) - { -#ifdef NEED_SEPARATE_REGISTER_STACK - size_t stacksize = ((char *)(new_thread->p_guardaddr) - - new_thread_bottom); - munmap((caddr_t)new_thread_bottom, - 2 * stacksize + new_thread->p_guardsize); -#elif _STACK_GROWS_UP -# ifdef USE_TLS - size_t stacksize = guardaddr - stack_addr; - munmap(stack_addr, stacksize + guardsize); -# else - size_t stacksize = guardaddr - (char *)new_thread; - munmap(new_thread, stacksize + guardsize); -# endif -#else -# ifdef USE_TLS - size_t stacksize = stack_addr - new_thread_bottom; -# else - size_t stacksize = (char *)(new_thread+1) - new_thread_bottom; -# endif - munmap(new_thread_bottom - guardsize, guardsize + stacksize); -#endif - } -#ifdef USE_TLS -# if TLS_DTV_AT_TP - new_thread = (pthread_descr) ((char *) new_thread + TLS_PRE_TCB_SIZE); -# endif - _dl_deallocate_tls (new_thread, true); -#endif - __pthread_handles[sseg].h_descr = NULL; - __pthread_handles[sseg].h_bottom = NULL; - __pthread_handles_num--; - return saved_errno; - } - /* Insert new thread in doubly linked list of active threads */ - new_thread->p_prevlive = __pthread_main_thread; - new_thread->p_nextlive = __pthread_main_thread->p_nextlive; - __pthread_main_thread->p_nextlive->p_prevlive = new_thread; - __pthread_main_thread->p_nextlive = new_thread; - /* Set pid field of the new thread, in case we get there before the - child starts. */ - new_thread->p_pid = pid; - return 0; -} - - -/* Try to free the resources of a thread when requested by pthread_join - or pthread_detach on a terminated thread. */ - -static void pthread_free(pthread_descr th) -{ - pthread_handle handle; - pthread_readlock_info *iter, *next; - - ASSERT(th->p_exited); - /* Make the handle invalid */ - handle = thread_handle(th->p_tid); - __pthread_lock(&handle->h_lock, NULL); - handle->h_descr = NULL; - handle->h_bottom = (char *)(-1L); - __pthread_unlock(&handle->h_lock); -#ifdef FREE_THREAD - FREE_THREAD(th, th->p_nr); -#endif - /* One fewer threads in __pthread_handles */ - __pthread_handles_num--; - - /* Destroy read lock list, and list of free read lock structures. - If the former is not empty, it means the thread exited while - holding read locks! */ - - for (iter = th->p_readlock_list; iter != NULL; iter = next) - { - next = iter->pr_next; - free(iter); - } - - for (iter = th->p_readlock_free; iter != NULL; iter = next) - { - next = iter->pr_next; - free(iter); - } - - /* If initial thread, nothing to free */ - if (!th->p_userstack) - { - size_t guardsize = th->p_guardsize; - /* Free the stack and thread descriptor area */ - char *guardaddr = th->p_guardaddr; -#ifdef _STACK_GROWS_UP -# ifdef USE_TLS - size_t stacksize = guardaddr - th->p_stackaddr; -# else - size_t stacksize = guardaddr - (char *)th; -# endif - guardaddr = (char *)th; -#else - /* Guardaddr is always set, even if guardsize is 0. This allows - us to compute everything else. */ -# ifdef USE_TLS - size_t stacksize = th->p_stackaddr - guardaddr - guardsize; -# else - size_t stacksize = (char *)(th+1) - guardaddr - guardsize; -# endif -# ifdef NEED_SEPARATE_REGISTER_STACK - /* Take account of the register stack, which is below guardaddr. */ - guardaddr -= stacksize; - stacksize *= 2; -# endif -#endif - /* Unmap the stack. */ - munmap(guardaddr, stacksize + guardsize); - - } - -#ifdef USE_TLS -# if TLS_DTV_AT_TP - th = (pthread_descr) ((char *) th + TLS_PRE_TCB_SIZE); -# endif - _dl_deallocate_tls (th, true); -#endif -} - -/* Handle threads that have exited */ - -static void pthread_exited(pid_t pid) -{ - pthread_descr th; - int detached; - /* Find thread with that pid */ - for (th = __pthread_main_thread->p_nextlive; - th != __pthread_main_thread; - th = th->p_nextlive) { - if (th->p_pid == pid) { - /* Remove thread from list of active threads */ - th->p_nextlive->p_prevlive = th->p_prevlive; - th->p_prevlive->p_nextlive = th->p_nextlive; - /* Mark thread as exited, and if detached, free its resources */ - __pthread_lock(th->p_lock, NULL); - th->p_exited = 1; - /* If we have to signal this event do it now. */ - if (th->p_report_events) - { - /* See whether TD_REAP is in any of the mask. */ - int idx = __td_eventword (TD_REAP); - uint32_t mask = __td_eventmask (TD_REAP); - - if ((mask & (__pthread_threads_events.event_bits[idx] - | th->p_eventbuf.eventmask.event_bits[idx])) != 0) - { - /* Yep, we have to signal the reapage. */ - th->p_eventbuf.eventnum = TD_REAP; - th->p_eventbuf.eventdata = th; - __pthread_last_event = th; - - /* Now call the function to signal the event. */ - __linuxthreads_reap_event(); - } - } - detached = th->p_detached; - __pthread_unlock(th->p_lock); - if (detached) - pthread_free(th); - break; - } - } - /* If all threads have exited and the main thread is pending on a - pthread_exit, wake up the main thread and terminate ourselves. */ - if (main_thread_exiting && - __pthread_main_thread->p_nextlive == __pthread_main_thread) { - restart(__pthread_main_thread); - /* Same logic as REQ_MAIN_THREAD_EXIT. */ - } -} - -static void pthread_reap_children(void) -{ - pid_t pid; - int status; - - while ((pid = waitpid_not_cancel(-1, &status, WNOHANG | __WCLONE)) > 0) { - pthread_exited(pid); - if (WIFSIGNALED(status)) { - /* If a thread died due to a signal, send the same signal to - all other threads, including the main thread. */ - pthread_kill_all_threads(WTERMSIG(status), 1); - _exit(0); - } - } -} - -/* Try to free the resources of a thread when requested by pthread_join - or pthread_detach on a terminated thread. */ - -static void pthread_handle_free(pthread_t th_id) -{ - pthread_handle handle = thread_handle(th_id); - pthread_descr th; - - __pthread_lock(&handle->h_lock, NULL); - if (nonexisting_handle(handle, th_id)) { - /* pthread_reap_children has deallocated the thread already, - nothing needs to be done */ - __pthread_unlock(&handle->h_lock); - return; - } - th = handle->h_descr; - if (th->p_exited) { - __pthread_unlock(&handle->h_lock); - pthread_free(th); - } else { - /* The Unix process of the thread is still running. - Mark the thread as detached so that the thread manager will - deallocate its resources when the Unix process exits. */ - th->p_detached = 1; - __pthread_unlock(&handle->h_lock); - } -} - -/* Send a signal to all running threads */ - -static void pthread_kill_all_threads(int sig, int main_thread_also) -{ - pthread_descr th; - for (th = __pthread_main_thread->p_nextlive; - th != __pthread_main_thread; - th = th->p_nextlive) { - kill(th->p_pid, sig); - } - if (main_thread_also) { - kill(__pthread_main_thread->p_pid, sig); - } -} - -static void pthread_for_each_thread(void *arg, - void (*fn)(void *, pthread_descr)) -{ - pthread_descr th; - - for (th = __pthread_main_thread->p_nextlive; - th != __pthread_main_thread; - th = th->p_nextlive) { - fn(arg, th); - } - - fn(arg, __pthread_main_thread); -} - -/* Process-wide exit() */ - -static void pthread_handle_exit(pthread_descr issuing_thread, int exitcode) -{ - pthread_descr th; - __pthread_exit_requested = 1; - __pthread_exit_code = exitcode; - /* A forced asynchronous cancellation follows. Make sure we won't - get stuck later in the main thread with a system lock being held - by one of the cancelled threads. Ideally one would use the same - code as in pthread_atfork(), but we can't distinguish system and - user handlers there. */ - __flockfilelist(); - /* Send the CANCEL signal to all running threads, including the main - thread, but excluding the thread from which the exit request originated - (that thread must complete the exit, e.g. calling atexit functions - and flushing stdio buffers). */ - for (th = issuing_thread->p_nextlive; - th != issuing_thread; - th = th->p_nextlive) { - kill(th->p_pid, __pthread_sig_cancel); - } - /* Now, wait for all these threads, so that they don't become zombies - and their times are properly added to the thread manager's times. */ - for (th = issuing_thread->p_nextlive; - th != issuing_thread; - th = th->p_nextlive) { - waitpid(th->p_pid, NULL, __WCLONE); - } - __fresetlockfiles(); - restart(issuing_thread); - _exit(0); -} - -/* Handler for __pthread_sig_cancel in thread manager thread */ - -void __pthread_manager_sighandler(int sig) -{ - int kick_manager = terminated_children == 0 && main_thread_exiting; - terminated_children = 1; - - /* If the main thread is terminating, kick the thread manager loop - each time some threads terminate. This eliminates a two second - shutdown delay caused by the thread manager sleeping in the - call to __poll(). Instead, the thread manager is kicked into - action, reaps the outstanding threads and resumes the main thread - so that it can complete the shutdown. */ - - if (kick_manager) { - struct pthread_request request; - request.req_thread = 0; - request.req_kind = REQ_KICK; - TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request, - (char *) &request, sizeof(request))); - } -} - -/* Adjust priority of thread manager so that it always run at a priority - higher than all threads */ - -void __pthread_manager_adjust_prio(int thread_prio) -{ - struct sched_param param; - - if (thread_prio <= manager_thread->p_priority) return; - param.sched_priority = - thread_prio < __sched_get_priority_max(SCHED_FIFO) - ? thread_prio + 1 : thread_prio; - __sched_setscheduler(manager_thread->p_pid, SCHED_FIFO, ¶m); - manager_thread->p_priority = thread_prio; -} diff --git a/linuxthreads/mutex.c b/linuxthreads/mutex.c deleted file mode 100644 index d5f7a335cc..0000000000 --- a/linuxthreads/mutex.c +++ /dev/null @@ -1,362 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Mutexes */ - -#include <bits/libc-lock.h> -#include <errno.h> -#include <sched.h> -#include <stddef.h> -#include <limits.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "queue.h" -#include "restart.h" - -int __pthread_mutex_init(pthread_mutex_t * mutex, - const pthread_mutexattr_t * mutex_attr) -{ - __pthread_init_lock(&mutex->__m_lock); - mutex->__m_kind = - mutex_attr == NULL ? PTHREAD_MUTEX_TIMED_NP : mutex_attr->__mutexkind; - mutex->__m_count = 0; - mutex->__m_owner = NULL; - return 0; -} -strong_alias (__pthread_mutex_init, pthread_mutex_init) -hidden_def (__pthread_mutex_init) - -int __pthread_mutex_destroy(pthread_mutex_t * mutex) -{ - switch (mutex->__m_kind) { - case PTHREAD_MUTEX_ADAPTIVE_NP: - case PTHREAD_MUTEX_RECURSIVE_NP: - if ((mutex->__m_lock.__status & 1) != 0) - return EBUSY; - return 0; - case PTHREAD_MUTEX_ERRORCHECK_NP: - case PTHREAD_MUTEX_TIMED_NP: - if (mutex->__m_lock.__status != 0) - return EBUSY; - return 0; - default: - return EINVAL; - } -} -strong_alias (__pthread_mutex_destroy, pthread_mutex_destroy) -hidden_def (__pthread_mutex_destroy) - -int __pthread_mutex_trylock(pthread_mutex_t * mutex) -{ - pthread_descr self; - int retcode; - - switch(mutex->__m_kind) { - case PTHREAD_MUTEX_ADAPTIVE_NP: - retcode = __pthread_trylock(&mutex->__m_lock); - return retcode; - case PTHREAD_MUTEX_RECURSIVE_NP: - self = thread_self(); - if (mutex->__m_owner == self) { - mutex->__m_count++; - return 0; - } - retcode = __pthread_trylock(&mutex->__m_lock); - if (retcode == 0) { - mutex->__m_owner = self; - mutex->__m_count = 0; - } - return retcode; - case PTHREAD_MUTEX_ERRORCHECK_NP: - retcode = __pthread_alt_trylock(&mutex->__m_lock); - if (retcode == 0) { - mutex->__m_owner = thread_self(); - } - return retcode; - case PTHREAD_MUTEX_TIMED_NP: - retcode = __pthread_alt_trylock(&mutex->__m_lock); - return retcode; - default: - return EINVAL; - } -} -strong_alias (__pthread_mutex_trylock, pthread_mutex_trylock) -hidden_def (__pthread_mutex_trylock) - -int __pthread_mutex_lock(pthread_mutex_t * mutex) -{ - pthread_descr self; - - switch(mutex->__m_kind) { - case PTHREAD_MUTEX_ADAPTIVE_NP: - __pthread_lock(&mutex->__m_lock, NULL); - return 0; - case PTHREAD_MUTEX_RECURSIVE_NP: - self = thread_self(); - if (mutex->__m_owner == self) { - mutex->__m_count++; - return 0; - } - __pthread_lock(&mutex->__m_lock, self); - mutex->__m_owner = self; - mutex->__m_count = 0; - return 0; - case PTHREAD_MUTEX_ERRORCHECK_NP: - self = thread_self(); - if (mutex->__m_owner == self) return EDEADLK; - __pthread_alt_lock(&mutex->__m_lock, self); - mutex->__m_owner = self; - return 0; - case PTHREAD_MUTEX_TIMED_NP: - __pthread_alt_lock(&mutex->__m_lock, NULL); - return 0; - default: - return EINVAL; - } -} -strong_alias (__pthread_mutex_lock, pthread_mutex_lock) -hidden_def (__pthread_mutex_lock) - -int __pthread_mutex_timedlock (pthread_mutex_t *mutex, - const struct timespec *abstime) -{ - pthread_descr self; - int res; - - if (__builtin_expect (abstime->tv_nsec, 0) < 0 - || __builtin_expect (abstime->tv_nsec, 0) >= 1000000000) - return EINVAL; - - switch(mutex->__m_kind) { - case PTHREAD_MUTEX_ADAPTIVE_NP: - __pthread_lock(&mutex->__m_lock, NULL); - return 0; - case PTHREAD_MUTEX_RECURSIVE_NP: - self = thread_self(); - if (mutex->__m_owner == self) { - mutex->__m_count++; - return 0; - } - __pthread_lock(&mutex->__m_lock, self); - mutex->__m_owner = self; - mutex->__m_count = 0; - return 0; - case PTHREAD_MUTEX_ERRORCHECK_NP: - self = thread_self(); - if (mutex->__m_owner == self) return EDEADLK; - res = __pthread_alt_timedlock(&mutex->__m_lock, self, abstime); - if (res != 0) - { - mutex->__m_owner = self; - return 0; - } - return ETIMEDOUT; - case PTHREAD_MUTEX_TIMED_NP: - /* Only this type supports timed out lock. */ - return (__pthread_alt_timedlock(&mutex->__m_lock, NULL, abstime) - ? 0 : ETIMEDOUT); - default: - return EINVAL; - } -} -strong_alias (__pthread_mutex_timedlock, pthread_mutex_timedlock) - -int __pthread_mutex_unlock(pthread_mutex_t * mutex) -{ - switch (mutex->__m_kind) { - case PTHREAD_MUTEX_ADAPTIVE_NP: - __pthread_unlock(&mutex->__m_lock); - return 0; - case PTHREAD_MUTEX_RECURSIVE_NP: - if (mutex->__m_owner != thread_self()) - return EPERM; - if (mutex->__m_count > 0) { - mutex->__m_count--; - return 0; - } - mutex->__m_owner = NULL; - __pthread_unlock(&mutex->__m_lock); - return 0; - case PTHREAD_MUTEX_ERRORCHECK_NP: - if (mutex->__m_owner != thread_self() || mutex->__m_lock.__status == 0) - return EPERM; - mutex->__m_owner = NULL; - __pthread_alt_unlock(&mutex->__m_lock); - return 0; - case PTHREAD_MUTEX_TIMED_NP: - __pthread_alt_unlock(&mutex->__m_lock); - return 0; - default: - return EINVAL; - } -} -strong_alias (__pthread_mutex_unlock, pthread_mutex_unlock) -hidden_def (__pthread_mutex_unlock) - -int __pthread_mutexattr_init(pthread_mutexattr_t *attr) -{ - attr->__mutexkind = PTHREAD_MUTEX_TIMED_NP; - return 0; -} -strong_alias (__pthread_mutexattr_init, pthread_mutexattr_init) - -int __pthread_mutexattr_destroy(pthread_mutexattr_t *attr) -{ - return 0; -} -strong_alias (__pthread_mutexattr_destroy, pthread_mutexattr_destroy) - -int __pthread_mutexattr_settype(pthread_mutexattr_t *attr, int kind) -{ - if (kind != PTHREAD_MUTEX_ADAPTIVE_NP - && kind != PTHREAD_MUTEX_RECURSIVE_NP - && kind != PTHREAD_MUTEX_ERRORCHECK_NP - && kind != PTHREAD_MUTEX_TIMED_NP) - return EINVAL; - attr->__mutexkind = kind; - return 0; -} -weak_alias (__pthread_mutexattr_settype, pthread_mutexattr_settype) -strong_alias ( __pthread_mutexattr_settype, __pthread_mutexattr_setkind_np) -weak_alias (__pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np) - -int __pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *kind) -{ - *kind = attr->__mutexkind; - return 0; -} -weak_alias (__pthread_mutexattr_gettype, pthread_mutexattr_gettype) -strong_alias (__pthread_mutexattr_gettype, __pthread_mutexattr_getkind_np) -weak_alias (__pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np) - -int __pthread_mutexattr_getpshared (const pthread_mutexattr_t *attr, - int *pshared) -{ - *pshared = PTHREAD_PROCESS_PRIVATE; - return 0; -} -weak_alias (__pthread_mutexattr_getpshared, pthread_mutexattr_getpshared) - -int __pthread_mutexattr_setpshared (pthread_mutexattr_t *attr, int pshared) -{ - if (pshared != PTHREAD_PROCESS_PRIVATE && pshared != PTHREAD_PROCESS_SHARED) - return EINVAL; - - /* For now it is not possible to shared a conditional variable. */ - if (pshared != PTHREAD_PROCESS_PRIVATE) - return ENOSYS; - - return 0; -} -weak_alias (__pthread_mutexattr_setpshared, pthread_mutexattr_setpshared) - -/* Once-only execution */ - -static pthread_mutex_t once_masterlock = PTHREAD_MUTEX_INITIALIZER; -static pthread_cond_t once_finished = PTHREAD_COND_INITIALIZER; -static int fork_generation = 0; /* Child process increments this after fork. */ - -enum { NEVER = 0, IN_PROGRESS = 1, DONE = 2 }; - -/* If a thread is canceled while calling the init_routine out of - pthread once, this handler will reset the once_control variable - to the NEVER state. */ - -static void pthread_once_cancelhandler(void *arg) -{ - pthread_once_t *once_control = arg; - - pthread_mutex_lock(&once_masterlock); - *once_control = NEVER; - pthread_mutex_unlock(&once_masterlock); - pthread_cond_broadcast(&once_finished); -} - -int __pthread_once(pthread_once_t * once_control, void (*init_routine)(void)) -{ - /* flag for doing the condition broadcast outside of mutex */ - int state_changed; - - /* Test without locking first for speed */ - if (*once_control == DONE) { - READ_MEMORY_BARRIER(); - return 0; - } - /* Lock and test again */ - - state_changed = 0; - - pthread_mutex_lock(&once_masterlock); - - /* If this object was left in an IN_PROGRESS state in a parent - process (indicated by stale generation field), reset it to NEVER. */ - if ((*once_control & 3) == IN_PROGRESS && (*once_control & ~3) != fork_generation) - *once_control = NEVER; - - /* If init_routine is being called from another routine, wait until - it completes. */ - while ((*once_control & 3) == IN_PROGRESS) { - pthread_cond_wait(&once_finished, &once_masterlock); - } - /* Here *once_control is stable and either NEVER or DONE. */ - if (*once_control == NEVER) { - *once_control = IN_PROGRESS | fork_generation; - pthread_mutex_unlock(&once_masterlock); - pthread_cleanup_push(pthread_once_cancelhandler, once_control); - init_routine(); - pthread_cleanup_pop(0); - pthread_mutex_lock(&once_masterlock); - WRITE_MEMORY_BARRIER(); - *once_control = DONE; - state_changed = 1; - } - pthread_mutex_unlock(&once_masterlock); - - if (state_changed) - pthread_cond_broadcast(&once_finished); - - return 0; -} -strong_alias (__pthread_once, pthread_once) - -/* - * Handle the state of the pthread_once mechanism across forks. The - * once_masterlock is acquired in the parent process prior to a fork to ensure - * that no thread is in the critical region protected by the lock. After the - * fork, the lock is released. In the child, the lock and the condition - * variable are simply reset. The child also increments its generation - * counter which lets pthread_once calls detect stale IN_PROGRESS states - * and reset them back to NEVER. - */ - -void __pthread_once_fork_prepare(void) -{ - pthread_mutex_lock(&once_masterlock); -} - -void __pthread_once_fork_parent(void) -{ - pthread_mutex_unlock(&once_masterlock); -} - -void __pthread_once_fork_child(void) -{ - pthread_mutex_init(&once_masterlock, NULL); - pthread_cond_init(&once_finished, NULL); - if (fork_generation <= INT_MAX - 4) - fork_generation += 4; /* leave least significant two bits zero */ - else - fork_generation = 0; -} diff --git a/linuxthreads/old_pthread_atfork.c b/linuxthreads/old_pthread_atfork.c deleted file mode 100644 index 768e6876c4..0000000000 --- a/linuxthreads/old_pthread_atfork.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <shlib-compat.h> - -#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_3) -# define __pthread_atfork __dyn_pthread_atfork -# include "pthread_atfork.c" -# undef __pthread_atfork -compat_symbol (libpthread, __dyn_pthread_atfork, pthread_atfork, GLIBC_2_0); -#endif diff --git a/linuxthreads/oldsemaphore.c b/linuxthreads/oldsemaphore.c deleted file mode 100644 index d35683b98b..0000000000 --- a/linuxthreads/oldsemaphore.c +++ /dev/null @@ -1,241 +0,0 @@ -/* - * This file contains the old semaphore code that we need to - * preserve for glibc-2.0 backwards compatibility. Port to glibc 2.1 - * done by Cristian Gafton. - */ - -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Semaphores a la POSIX 1003.1b */ -#include <shlib-compat.h> -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) - -#include <errno.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "restart.h" -#include "queue.h" - -typedef struct { - long int sem_status; - int sem_spinlock; -} old_sem_t; - -extern int __old_sem_init (old_sem_t *__sem, int __pshared, unsigned int __value); -extern int __old_sem_wait (old_sem_t *__sem); -extern int __old_sem_trywait (old_sem_t *__sem); -extern int __old_sem_post (old_sem_t *__sem); -extern int __old_sem_getvalue (old_sem_t *__sem, int *__sval); -extern int __old_sem_destroy (old_sem_t *__sem); - -static inline int sem_compare_and_swap(old_sem_t *sem, long oldval, long newval) -{ - return compare_and_swap(&sem->sem_status, oldval, newval, &sem->sem_spinlock); -} - -/* The state of a semaphore is represented by a long int encoding - either the semaphore count if >= 0 and no thread is waiting on it, - or the head of the list of threads waiting for the semaphore. - To distinguish the two cases, we encode the semaphore count N - as 2N+1, so that it has the lowest bit set. - - A sequence of sem_wait operations on a semaphore initialized to N - result in the following successive states: - 2N+1, 2N-1, ..., 3, 1, &first_waiting_thread, &second_waiting_thread, ... -*/ - -static void sem_restart_list(pthread_descr waiting); - -int __old_sem_init(old_sem_t *sem, int pshared, unsigned int value) -{ - if (value > SEM_VALUE_MAX) { - errno = EINVAL; - return -1; - } - if (pshared) { - errno = ENOSYS; - return -1; - } - sem->sem_spinlock = __LT_SPINLOCK_INIT; - sem->sem_status = ((long)value << 1) + 1; - return 0; -} - -/* Function called by pthread_cancel to remove the thread from - waiting inside __old_sem_wait. Here we simply unconditionally - indicate that the thread is to be woken, by returning 1. */ - -static int old_sem_extricate_func(void *obj, pthread_descr th) -{ - return 1; -} - -int __old_sem_wait(old_sem_t * sem) -{ - long oldstatus, newstatus; - volatile pthread_descr self = thread_self(); - pthread_descr * th; - pthread_extricate_if extr; - - /* Set up extrication interface */ - extr.pu_object = 0; - extr.pu_extricate_func = old_sem_extricate_func; - - while (1) { - /* Register extrication interface */ - __pthread_set_own_extricate_if(self, &extr); - do { - oldstatus = sem->sem_status; - if ((oldstatus & 1) && (oldstatus != 1)) - newstatus = oldstatus - 2; - else { - newstatus = (long) self; - self->p_nextwaiting = (pthread_descr) oldstatus; - } - } - while (! sem_compare_and_swap(sem, oldstatus, newstatus)); - if (newstatus & 1) { - /* We got the semaphore. */ - __pthread_set_own_extricate_if(self, 0); - self->p_nextwaiting = NULL; - return 0; - } - /* Wait for sem_post or cancellation */ - suspend(self); - __pthread_set_own_extricate_if(self, 0); - - /* This is a cancellation point */ - if (self->p_canceled && self->p_cancelstate == PTHREAD_CANCEL_ENABLE) { - /* Remove ourselves from the waiting list if we're still on it */ - /* First check if we're at the head of the list. */ - do { - oldstatus = sem->sem_status; - if (oldstatus != (long) self) break; - newstatus = (long) self->p_nextwaiting; - } - while (! sem_compare_and_swap(sem, oldstatus, newstatus)); - /* Now, check if we're somewhere in the list. - There's a race condition with sem_post here, but it does not matter: - the net result is that at the time pthread_exit is called, - self is no longer reachable from sem->sem_status. */ - if (oldstatus != (long) self && (oldstatus & 1) == 0) { - for (th = &(((pthread_descr) oldstatus)->p_nextwaiting); - *th != NULL && *th != (pthread_descr) 1; - th = &((*th)->p_nextwaiting)) { - if (*th == self) { - *th = self->p_nextwaiting; - break; - } - } - } - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - } - } -} - -int __old_sem_trywait(old_sem_t * sem) -{ - long oldstatus, newstatus; - - do { - oldstatus = sem->sem_status; - if ((oldstatus & 1) == 0 || (oldstatus == 1)) { - errno = EAGAIN; - return -1; - } - newstatus = oldstatus - 2; - } - while (! sem_compare_and_swap(sem, oldstatus, newstatus)); - return 0; -} - -int __old_sem_post(old_sem_t * sem) -{ - long oldstatus, newstatus; - - do { - oldstatus = sem->sem_status; - if ((oldstatus & 1) == 0) - newstatus = 3; - else { - if (oldstatus >= SEM_VALUE_MAX) { - /* Overflow */ - errno = ERANGE; - return -1; - } - newstatus = oldstatus + 2; - } - } - while (! sem_compare_and_swap(sem, oldstatus, newstatus)); - if ((oldstatus & 1) == 0) - sem_restart_list((pthread_descr) oldstatus); - return 0; -} - -int __old_sem_getvalue(old_sem_t * sem, int * sval) -{ - long status = sem->sem_status; - if (status & 1) - *sval = (int)((unsigned long) status >> 1); - else - *sval = 0; - return 0; -} - -int __old_sem_destroy(old_sem_t * sem) -{ - if ((sem->sem_status & 1) == 0) { - errno = EBUSY; - return -1; - } - return 0; -} - -/* Auxiliary function for restarting all threads on a waiting list, - in priority order. */ - -static void sem_restart_list(pthread_descr waiting) -{ - pthread_descr th, towake, *p; - - /* Sort list of waiting threads by decreasing priority (insertion sort) */ - towake = NULL; - while (waiting != (pthread_descr) 1) { - th = waiting; - waiting = waiting->p_nextwaiting; - p = &towake; - while (*p != NULL && th->p_priority < (*p)->p_priority) - p = &((*p)->p_nextwaiting); - th->p_nextwaiting = *p; - *p = th; - } - /* Wake up threads in priority order */ - while (towake != NULL) { - th = towake; - towake = towake->p_nextwaiting; - th->p_nextwaiting = NULL; - restart(th); - } -} - -compat_symbol (libpthread, __old_sem_init, sem_init, GLIBC_2_0); -compat_symbol (libpthread, __old_sem_wait, sem_wait, GLIBC_2_0); -compat_symbol (libpthread, __old_sem_trywait, sem_trywait, GLIBC_2_0); -compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0); -compat_symbol (libpthread, __old_sem_getvalue, sem_getvalue, GLIBC_2_0); -compat_symbol (libpthread, __old_sem_destroy, sem_destroy, GLIBC_2_0); - -#endif diff --git a/linuxthreads/pt-allocrtsig.c b/linuxthreads/pt-allocrtsig.c deleted file mode 100644 index 3598dbb49f..0000000000 --- a/linuxthreads/pt-allocrtsig.c +++ /dev/null @@ -1,50 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <signal.h> - - -/* These are defined in libc. We want to have only one definition - so we "forward" the calls. */ -extern int __libc_current_sigrtmin_private (void); -extern int __libc_current_sigrtmax_private (void); -extern int __libc_allocate_rtsig_private (int high); - - -/* We reserve __SIGRTMIN for use as the cancelation signal. This - signal is used internally. */ -int -__libc_current_sigrtmin (void) -{ - return __libc_current_sigrtmin_private (); -} - - -int -__libc_current_sigrtmax (void) -{ - return __libc_current_sigrtmax_private (); -} - - -int -__libc_allocate_rtsig (int high) -{ - return __libc_allocate_rtsig_private (high); -} diff --git a/linuxthreads/pt-machine.c b/linuxthreads/pt-machine.c deleted file mode 100644 index 5cd477ce97..0000000000 --- a/linuxthreads/pt-machine.c +++ /dev/null @@ -1,25 +0,0 @@ -/* "Instantiation of machine-dependent pthreads inline functions. - Copyright (C) 1998 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#define PT_EI - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -#include <pt-machine.h> diff --git a/linuxthreads/pt-system.c b/linuxthreads/pt-system.c deleted file mode 100644 index c3ed676f51..0000000000 --- a/linuxthreads/pt-system.c +++ /dev/null @@ -1,32 +0,0 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <stdlib.h> -#include <sysdep-cancel.h> - - -int -system (const char *line) -{ - return __libc_system (line); -} - -/* __libc_system in libc.so handles cancellation. */ -LIBC_CANCEL_HANDLED (); diff --git a/linuxthreads/ptcleanup.c b/linuxthreads/ptcleanup.c deleted file mode 100644 index 9fde2555b1..0000000000 --- a/linuxthreads/ptcleanup.c +++ /dev/null @@ -1,52 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1998, 2004 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Redefine siglongjmp and longjmp so that they interact correctly - with cleanup handlers */ - -#include <setjmp.h> -#include "pthread.h" -#include "internals.h" - -void __pthread_cleanup_upto (__jmp_buf target, char *targetframe) -{ - pthread_descr self = thread_self(); - struct _pthread_cleanup_buffer * c; - - for (c = THREAD_GETMEM(self, p_cleanup); - c != NULL && _JMPBUF_UNWINDS(target, c); - c = c->__prev) - { -#if _STACK_GROWS_DOWN - if ((char *) c <= targetframe) - { - c = NULL; - break; - } -#elif _STACK_GROWS_UP - if ((char *) c >= targetframe) - { - c = NULL; - break; - } -#else -# error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP" -#endif - c->__routine(c->__arg); - } - THREAD_SETMEM(self, p_cleanup, c); - if (THREAD_GETMEM(self, p_in_sighandler) - && _JMPBUF_UNWINDS(target, THREAD_GETMEM(self, p_in_sighandler))) - THREAD_SETMEM(self, p_in_sighandler, NULL); -} diff --git a/linuxthreads/ptclock_gettime.c b/linuxthreads/ptclock_gettime.c deleted file mode 100644 index 755f83d101..0000000000 --- a/linuxthreads/ptclock_gettime.c +++ /dev/null @@ -1,69 +0,0 @@ -/* Copyright (C) 2001, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <time.h> -#include <libc-internal.h> -#include "internals.h" -#include "spinlock.h" - - -#if HP_TIMING_AVAIL -int -__pthread_clock_gettime (clockid_t clock_id, hp_timing_t freq, - struct timespec *tp) -{ - hp_timing_t tsc, cpuclock_offset; - pthread_descr self = thread_self (); - pthread_t thread = ((unsigned int) clock_id) >> CLOCK_IDFIELD_SIZE; - const unsigned int mask = ~0U >> CLOCK_IDFIELD_SIZE; - - if (thread == 0 || (THREAD_GETMEM (self, p_tid) & mask) == thread) - cpuclock_offset = THREAD_GETMEM (self, p_cpuclock_offset); - else - { - pthread_descr th; - pthread_handle handle = thread_handle (thread); - __pthread_lock (&handle->h_lock, NULL); - th = handle->h_descr; - if (th == NULL || (th->p_tid & mask) != thread || th->p_terminated) - { - __pthread_unlock (&handle->h_lock); - __set_errno (EINVAL); - return -1; - } - cpuclock_offset = th->p_cpuclock_offset; - __pthread_unlock (&handle->h_lock); - } - - /* Get the current counter. */ - HP_TIMING_NOW (tsc); - - /* Compute the offset since the start time of the process. */ - tsc -= cpuclock_offset; - - /* Compute the seconds. */ - tp->tv_sec = tsc / freq; - - /* And the nanoseconds. This computation should be stable until - we get machines with about 16GHz frequency. */ - tp->tv_nsec = ((tsc % freq) * 1000000000ull) / freq; - - return 0; -} -#endif diff --git a/linuxthreads/ptclock_settime.c b/linuxthreads/ptclock_settime.c deleted file mode 100644 index a4f218c771..0000000000 --- a/linuxthreads/ptclock_settime.c +++ /dev/null @@ -1,55 +0,0 @@ -/* Copyright (C) 2001, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <time.h> -#include <libc-internal.h> -#include "internals.h" -#include "spinlock.h" - - -#if HP_TIMING_AVAIL -int -__pthread_clock_settime (clockid_t clock_id, hp_timing_t offset) -{ - pthread_descr self = thread_self (); - pthread_t thread = ((unsigned int) clock_id) >> CLOCK_IDFIELD_SIZE; - const unsigned int mask = ~0U >> CLOCK_IDFIELD_SIZE; - - if (thread == 0 || (THREAD_GETMEM (self, p_tid) & mask) == thread) - /* Our own clock. */ - THREAD_SETMEM (self, p_cpuclock_offset, offset); - else - { - pthread_descr th; - pthread_handle handle = thread_handle (thread); - __pthread_lock (&handle->h_lock, NULL); - th = handle->h_descr; - if (th == NULL || (th->p_tid & mask) != thread || th->p_terminated) - { - __pthread_unlock (&handle->h_lock); - __set_errno (EINVAL); - return -1; - } - th->p_cpuclock_offset = offset; - __pthread_unlock (&handle->h_lock); - } - - return 0; -} -#endif diff --git a/linuxthreads/ptfork.c b/linuxthreads/ptfork.c deleted file mode 100644 index 9cdbb54361..0000000000 --- a/linuxthreads/ptfork.c +++ /dev/null @@ -1,93 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* The "atfork" stuff */ - -#include <errno.h> -#include <stddef.h> -#include <stdlib.h> -#include <unistd.h> -#include "pthread.h" -#include "internals.h" -#include <bits/libc-lock.h> -#include "fork.h" - -extern int __libc_fork (void); - -pid_t __pthread_fork (struct fork_block *b) -{ - pid_t pid; - list_t *runp; - - __libc_lock_lock (b->lock); - - /* Run all the registered preparation handlers. In reverse order. */ - list_for_each_prev (runp, &b->prepare_list) - { - struct fork_handler *curp; - curp = list_entry (runp, struct fork_handler, list); - curp->handler (); - } - - __pthread_once_fork_prepare(); - __flockfilelist(); - - pid = ARCH_FORK (); - - if (pid == 0) { - __pthread_reset_main_thread(); - - __fresetlockfiles(); - __pthread_once_fork_child(); - - /* Run the handlers registered for the child. */ - list_for_each (runp, &b->child_list) - { - struct fork_handler *curp; - curp = list_entry (runp, struct fork_handler, list); - curp->handler (); - } - - __libc_lock_init (b->lock); - } else { - __funlockfilelist(); - __pthread_once_fork_parent(); - - /* Run the handlers registered for the parent. */ - list_for_each (runp, &b->parent_list) - { - struct fork_handler *curp; - curp = list_entry (runp, struct fork_handler, list); - curp->handler (); - } - - __libc_lock_unlock (b->lock); - } - - return pid; -} - -#ifdef SHARED -pid_t __fork (void) -{ - return __libc_fork (); -} -weak_alias (__fork, fork); - -pid_t __vfork(void) -{ - return __libc_fork (); -} -weak_alias (__vfork, vfork); -#endif diff --git a/linuxthreads/pthandles.c b/linuxthreads/pthandles.c deleted file mode 100644 index 4d2ac1940d..0000000000 --- a/linuxthreads/pthandles.c +++ /dev/null @@ -1,6 +0,0 @@ -#include <ldsodefs.h> -#include "pthread.h" -#include "internals.h" - -/* Array of active threads. Entry 0 is reserved for the initial thread. */ -struct pthread_handle_struct __pthread_handles[PTHREAD_THREADS_MAX]; diff --git a/linuxthreads/pthread.c b/linuxthreads/pthread.c deleted file mode 100644 index 39863f2b54..0000000000 --- a/linuxthreads/pthread.c +++ /dev/null @@ -1,1408 +0,0 @@ - -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Thread creation, initialization, and basic low-level routines */ - -#include <errno.h> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <fcntl.h> -#include <sys/wait.h> -#include <sys/resource.h> -#include <sys/time.h> -#include <shlib-compat.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "restart.h" -#include "smp.h" -#include <ldsodefs.h> -#include <tls.h> -#include <version.h> -#include <not-cancel.h> - -/* Sanity check. */ -#if !defined __SIGRTMIN || (__SIGRTMAX - __SIGRTMIN) < 3 -# error "This must not happen" -#endif - -#if !(USE_TLS && HAVE___THREAD) -/* These variables are used by the setup code. */ -extern int _errno; -extern int _h_errno; - -/* We need the global/static resolver state here. */ -# include <resolv.h> -# undef _res - -extern struct __res_state _res; -#endif - -#ifdef USE_TLS - -/* We need only a few variables. */ -#define manager_thread __pthread_manager_threadp -pthread_descr __pthread_manager_threadp attribute_hidden; - -#else - -/* Descriptor of the initial thread */ - -struct _pthread_descr_struct __pthread_initial_thread = { - .p_header.data.self = &__pthread_initial_thread, - .p_nextlive = &__pthread_initial_thread, - .p_prevlive = &__pthread_initial_thread, - .p_tid = PTHREAD_THREADS_MAX, - .p_lock = &__pthread_handles[0].h_lock, - .p_start_args = PTHREAD_START_ARGS_INITIALIZER(NULL), -#if !(USE_TLS && HAVE___THREAD) - .p_errnop = &_errno, - .p_h_errnop = &_h_errno, - .p_resp = &_res, -#endif - .p_userstack = 1, - .p_resume_count = __ATOMIC_INITIALIZER, - .p_alloca_cutoff = __MAX_ALLOCA_CUTOFF -}; - -/* Descriptor of the manager thread; none of this is used but the error - variables, the p_pid and p_priority fields, - and the address for identification. */ - -#define manager_thread (&__pthread_manager_thread) -struct _pthread_descr_struct __pthread_manager_thread = { - .p_header.data.self = &__pthread_manager_thread, - .p_header.data.multiple_threads = 1, - .p_lock = &__pthread_handles[1].h_lock, - .p_start_args = PTHREAD_START_ARGS_INITIALIZER(__pthread_manager), -#if !(USE_TLS && HAVE___THREAD) - .p_errnop = &__pthread_manager_thread.p_errno, -#endif - .p_nr = 1, - .p_resume_count = __ATOMIC_INITIALIZER, - .p_alloca_cutoff = PTHREAD_STACK_MIN / 4 -}; -#endif - -/* Pointer to the main thread (the father of the thread manager thread) */ -/* Originally, this is the initial thread, but this changes after fork() */ - -#ifdef USE_TLS -pthread_descr __pthread_main_thread; -#else -pthread_descr __pthread_main_thread = &__pthread_initial_thread; -#endif - -/* Limit between the stack of the initial thread (above) and the - stacks of other threads (below). Aligned on a STACK_SIZE boundary. */ - -char *__pthread_initial_thread_bos; - -/* File descriptor for sending requests to the thread manager. */ -/* Initially -1, meaning that the thread manager is not running. */ - -int __pthread_manager_request = -1; - -int __pthread_multiple_threads attribute_hidden; - -/* Other end of the pipe for sending requests to the thread manager. */ - -int __pthread_manager_reader; - -/* Limits of the thread manager stack */ - -char *__pthread_manager_thread_bos; -char *__pthread_manager_thread_tos; - -/* For process-wide exit() */ - -int __pthread_exit_requested; -int __pthread_exit_code; - -/* Maximum stack size. */ -size_t __pthread_max_stacksize; - -/* Nozero if the machine has more than one processor. */ -int __pthread_smp_kernel; - - -#if !__ASSUME_REALTIME_SIGNALS -/* Pointers that select new or old suspend/resume functions - based on availability of rt signals. */ - -void (*__pthread_restart)(pthread_descr) = __pthread_restart_old; -void (*__pthread_suspend)(pthread_descr) = __pthread_suspend_old; -int (*__pthread_timedsuspend)(pthread_descr, const struct timespec *) = __pthread_timedsuspend_old; -#endif /* __ASSUME_REALTIME_SIGNALS */ - -/* Communicate relevant LinuxThreads constants to gdb */ - -const int __pthread_threads_max = PTHREAD_THREADS_MAX; -const int __pthread_sizeof_handle = sizeof(struct pthread_handle_struct); -const int __pthread_offsetof_descr = offsetof(struct pthread_handle_struct, - h_descr); -const int __pthread_offsetof_pid = offsetof(struct _pthread_descr_struct, - p_pid); -const int __linuxthreads_pthread_sizeof_descr - = sizeof(struct _pthread_descr_struct); - -const int __linuxthreads_initial_report_events; - -const char __linuxthreads_version[] = VERSION; - -/* Forward declarations */ - -static void pthread_onexit_process(int retcode, void *arg); -#ifndef HAVE_Z_NODELETE -static void pthread_atexit_process(void *arg, int retcode); -static void pthread_atexit_retcode(void *arg, int retcode); -#endif -static void pthread_handle_sigcancel(int sig); -static void pthread_handle_sigrestart(int sig); -static void pthread_handle_sigdebug(int sig); - -/* Signal numbers used for the communication. - In these variables we keep track of the used variables. If the - platform does not support any real-time signals we will define the - values to some unreasonable value which will signal failing of all - the functions below. */ -int __pthread_sig_restart = __SIGRTMIN; -int __pthread_sig_cancel = __SIGRTMIN + 1; -int __pthread_sig_debug = __SIGRTMIN + 2; - -extern int __libc_current_sigrtmin_private (void); - -#if !__ASSUME_REALTIME_SIGNALS -static int rtsigs_initialized; - -static void -init_rtsigs (void) -{ - if (rtsigs_initialized) - return; - - if (__libc_current_sigrtmin_private () == -1) - { - __pthread_sig_restart = SIGUSR1; - __pthread_sig_cancel = SIGUSR2; - __pthread_sig_debug = 0; - } - else - { - __pthread_restart = __pthread_restart_new; - __pthread_suspend = __pthread_wait_for_restart_signal; - __pthread_timedsuspend = __pthread_timedsuspend_new; - } - - rtsigs_initialized = 1; -} -#endif - - -/* Initialize the pthread library. - Initialization is split in two functions: - - a constructor function that blocks the __pthread_sig_restart signal - (must do this very early, since the program could capture the signal - mask with e.g. sigsetjmp before creating the first thread); - - a regular function called from pthread_create when needed. */ - -static void pthread_initialize(void) __attribute__((constructor)); - -#ifndef HAVE_Z_NODELETE -extern void *__dso_handle __attribute__ ((weak)); -#endif - - -#if defined USE_TLS && !defined SHARED -extern void __libc_setup_tls (size_t tcbsize, size_t tcbalign); -#endif - -struct pthread_functions __pthread_functions = - { -#if !(USE_TLS && HAVE___THREAD) - .ptr_pthread_internal_tsd_set = __pthread_internal_tsd_set, - .ptr_pthread_internal_tsd_get = __pthread_internal_tsd_get, - .ptr_pthread_internal_tsd_address = __pthread_internal_tsd_address, -#endif - .ptr_pthread_fork = __pthread_fork, - .ptr_pthread_attr_destroy = __pthread_attr_destroy, -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) - .ptr___pthread_attr_init_2_0 = __pthread_attr_init_2_0, -#endif - .ptr___pthread_attr_init_2_1 = __pthread_attr_init_2_1, - .ptr_pthread_attr_getdetachstate = __pthread_attr_getdetachstate, - .ptr_pthread_attr_setdetachstate = __pthread_attr_setdetachstate, - .ptr_pthread_attr_getinheritsched = __pthread_attr_getinheritsched, - .ptr_pthread_attr_setinheritsched = __pthread_attr_setinheritsched, - .ptr_pthread_attr_getschedparam = __pthread_attr_getschedparam, - .ptr_pthread_attr_setschedparam = __pthread_attr_setschedparam, - .ptr_pthread_attr_getschedpolicy = __pthread_attr_getschedpolicy, - .ptr_pthread_attr_setschedpolicy = __pthread_attr_setschedpolicy, - .ptr_pthread_attr_getscope = __pthread_attr_getscope, - .ptr_pthread_attr_setscope = __pthread_attr_setscope, - .ptr_pthread_condattr_destroy = __pthread_condattr_destroy, - .ptr_pthread_condattr_init = __pthread_condattr_init, - .ptr___pthread_cond_broadcast = __pthread_cond_broadcast, - .ptr___pthread_cond_destroy = __pthread_cond_destroy, - .ptr___pthread_cond_init = __pthread_cond_init, - .ptr___pthread_cond_signal = __pthread_cond_signal, - .ptr___pthread_cond_wait = __pthread_cond_wait, - .ptr___pthread_cond_timedwait = __pthread_cond_timedwait, - .ptr_pthread_equal = __pthread_equal, - .ptr___pthread_exit = __pthread_exit, - .ptr_pthread_getschedparam = __pthread_getschedparam, - .ptr_pthread_setschedparam = __pthread_setschedparam, - .ptr_pthread_mutex_destroy = __pthread_mutex_destroy, - .ptr_pthread_mutex_init = __pthread_mutex_init, - .ptr_pthread_mutex_lock = __pthread_mutex_lock, - .ptr_pthread_mutex_trylock = __pthread_mutex_trylock, - .ptr_pthread_mutex_unlock = __pthread_mutex_unlock, - .ptr_pthread_self = __pthread_self, - .ptr_pthread_setcancelstate = __pthread_setcancelstate, - .ptr_pthread_setcanceltype = __pthread_setcanceltype, - .ptr_pthread_do_exit = __pthread_do_exit, - .ptr_pthread_thread_self = __pthread_thread_self, - .ptr_pthread_cleanup_upto = __pthread_cleanup_upto, - .ptr_pthread_sigaction = __pthread_sigaction, - .ptr_pthread_sigwait = __pthread_sigwait, - .ptr_pthread_raise = __pthread_raise, - .ptr__pthread_cleanup_push = _pthread_cleanup_push, - .ptr__pthread_cleanup_pop = _pthread_cleanup_pop - }; -#ifdef SHARED -# define ptr_pthread_functions &__pthread_functions -#else -# define ptr_pthread_functions NULL -#endif - -static int *__libc_multiple_threads_ptr; - -/* Do some minimal initialization which has to be done during the - startup of the C library. */ -void -__pthread_initialize_minimal(void) -{ -#ifdef USE_TLS - pthread_descr self; - - /* First of all init __pthread_handles[0] and [1] if needed. */ -# if __LT_SPINLOCK_INIT != 0 - __pthread_handles[0].h_lock = __LOCK_INITIALIZER; - __pthread_handles[1].h_lock = __LOCK_INITIALIZER; -# endif -# ifndef SHARED - /* Unlike in the dynamically linked case the dynamic linker has not - taken care of initializing the TLS data structures. */ - __libc_setup_tls (TLS_TCB_SIZE, TLS_TCB_ALIGN); -# elif !USE___THREAD - if (__builtin_expect (GL(dl_tls_dtv_slotinfo_list) == NULL, 0)) - { - tcbhead_t *tcbp; - - /* There is no actual TLS being used, so the thread register - was not initialized in the dynamic linker. */ - - /* We need to install special hooks so that the malloc and memalign - calls in _dl_tls_setup and _dl_allocate_tls won't cause full - malloc initialization that will try to set up its thread state. */ - - extern void __libc_malloc_pthread_startup (bool first_time); - __libc_malloc_pthread_startup (true); - - if (__builtin_expect (_dl_tls_setup (), 0) - || __builtin_expect ((tcbp = _dl_allocate_tls (NULL)) == NULL, 0)) - { - static const char msg[] = "\ -cannot allocate TLS data structures for initial thread\n"; - TEMP_FAILURE_RETRY (write_not_cancel (STDERR_FILENO, - msg, sizeof msg - 1)); - abort (); - } - const char *lossage = TLS_INIT_TP (tcbp, 0); - if (__builtin_expect (lossage != NULL, 0)) - { - static const char msg[] = "cannot set up thread-local storage: "; - const char nl = '\n'; - TEMP_FAILURE_RETRY (write_not_cancel (STDERR_FILENO, - msg, sizeof msg - 1)); - TEMP_FAILURE_RETRY (write_not_cancel (STDERR_FILENO, - lossage, strlen (lossage))); - TEMP_FAILURE_RETRY (write_not_cancel (STDERR_FILENO, &nl, 1)); - } - - /* Though it was allocated with libc's malloc, that was done without - the user's __malloc_hook installed. A later realloc that uses - the hooks might not work with that block from the plain malloc. - So we record this block as unfreeable just as the dynamic linker - does when it allocates the DTV before the libc malloc exists. */ - GL(dl_initial_dtv) = GET_DTV (tcbp); - - __libc_malloc_pthread_startup (false); - } -# endif - - self = THREAD_SELF; - - /* The memory for the thread descriptor was allocated elsewhere as - part of the TLS allocation. We have to initialize the data - structure by hand. This initialization must mirror the struct - definition above. */ - self->p_nextlive = self->p_prevlive = self; - self->p_tid = PTHREAD_THREADS_MAX; - self->p_lock = &__pthread_handles[0].h_lock; -# ifndef HAVE___THREAD - self->p_errnop = &_errno; - self->p_h_errnop = &_h_errno; -# endif - /* self->p_start_args need not be initialized, it's all zero. */ - self->p_userstack = 1; -# if __LT_SPINLOCK_INIT != 0 - self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER; -# endif - self->p_alloca_cutoff = __MAX_ALLOCA_CUTOFF; - - /* Another variable which points to the thread descriptor. */ - __pthread_main_thread = self; - - /* And fill in the pointer the the thread __pthread_handles array. */ - __pthread_handles[0].h_descr = self; - -#else /* USE_TLS */ - - /* First of all init __pthread_handles[0] and [1]. */ -# if __LT_SPINLOCK_INIT != 0 - __pthread_handles[0].h_lock = __LOCK_INITIALIZER; - __pthread_handles[1].h_lock = __LOCK_INITIALIZER; -# endif - __pthread_handles[0].h_descr = &__pthread_initial_thread; - __pthread_handles[1].h_descr = &__pthread_manager_thread; - - /* If we have special thread_self processing, initialize that for the - main thread now. */ -# ifdef INIT_THREAD_SELF - INIT_THREAD_SELF(&__pthread_initial_thread, 0); -# endif -#endif - -#if HP_TIMING_AVAIL -# ifdef USE_TLS - self->p_cpuclock_offset = GL(dl_cpuclock_offset); -# else - __pthread_initial_thread.p_cpuclock_offset = GL(dl_cpuclock_offset); -# endif -#endif - - __libc_multiple_threads_ptr = __libc_pthread_init (ptr_pthread_functions); -} - - -void -__pthread_init_max_stacksize(void) -{ - struct rlimit limit; - size_t max_stack; - - getrlimit(RLIMIT_STACK, &limit); -#ifdef FLOATING_STACKS - if (limit.rlim_cur == RLIM_INFINITY) - limit.rlim_cur = ARCH_STACK_MAX_SIZE; -# ifdef NEED_SEPARATE_REGISTER_STACK - max_stack = limit.rlim_cur / 2; -# else - max_stack = limit.rlim_cur; -# endif -#else - /* Play with the stack size limit to make sure that no stack ever grows - beyond STACK_SIZE minus one page (to act as a guard page). */ -# ifdef NEED_SEPARATE_REGISTER_STACK - /* STACK_SIZE bytes hold both the main stack and register backing - store. The rlimit value applies to each individually. */ - max_stack = STACK_SIZE/2 - __getpagesize (); -# else - max_stack = STACK_SIZE - __getpagesize(); -# endif - if (limit.rlim_cur > max_stack) { - limit.rlim_cur = max_stack; - setrlimit(RLIMIT_STACK, &limit); - } -#endif - __pthread_max_stacksize = max_stack; - if (max_stack / 4 < __MAX_ALLOCA_CUTOFF) - { -#ifdef USE_TLS - pthread_descr self = THREAD_SELF; - self->p_alloca_cutoff = max_stack / 4; -#else - __pthread_initial_thread.p_alloca_cutoff = max_stack / 4; -#endif - } -} - -#ifdef SHARED -# if USE___THREAD -/* When using __thread for this, we do it in libc so as not - to give libpthread its own TLS segment just for this. */ -extern void **__libc_dl_error_tsd (void) __attribute__ ((const)); -# else -static void ** __attribute__ ((const)) -__libc_dl_error_tsd (void) -{ - return &thread_self ()->p_libc_specific[_LIBC_TSD_KEY_DL_ERROR]; -} -# endif -#endif - -#ifdef USE_TLS -static inline void __attribute__((always_inline)) -init_one_static_tls (pthread_descr descr, struct link_map *map) -{ -# if TLS_TCB_AT_TP - dtv_t *dtv = GET_DTV (descr); - void *dest = (char *) descr - map->l_tls_offset; -# elif TLS_DTV_AT_TP - dtv_t *dtv = GET_DTV ((pthread_descr) ((char *) descr + TLS_PRE_TCB_SIZE)); - void *dest = (char *) descr + map->l_tls_offset + TLS_PRE_TCB_SIZE; -# else -# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined" -# endif - - /* Fill in the DTV slot so that a later LD/GD access will find it. */ - dtv[map->l_tls_modid].pointer.val = dest; - dtv[map->l_tls_modid].pointer.is_static = true; - - /* Initialize the memory. */ - memset (__mempcpy (dest, map->l_tls_initimage, map->l_tls_initimage_size), - '\0', map->l_tls_blocksize - map->l_tls_initimage_size); -} - -static void -__pthread_init_static_tls (struct link_map *map) -{ - size_t i; - - for (i = 0; i < PTHREAD_THREADS_MAX; ++i) - if (__pthread_handles[i].h_descr != NULL && i != 1) - { - __pthread_lock (&__pthread_handles[i].h_lock, NULL); - if (__pthread_handles[i].h_descr != NULL) - init_one_static_tls (__pthread_handles[i].h_descr, map); - __pthread_unlock (&__pthread_handles[i].h_lock); - } -} -#endif - -static void pthread_initialize(void) -{ - struct sigaction sa; - sigset_t mask; - - /* If already done (e.g. by a constructor called earlier!), bail out */ - if (__pthread_initial_thread_bos != NULL) return; -#ifdef TEST_FOR_COMPARE_AND_SWAP - /* Test if compare-and-swap is available */ - __pthread_has_cas = compare_and_swap_is_available(); -#endif -#ifdef FLOATING_STACKS - /* We don't need to know the bottom of the stack. Give the pointer some - value to signal that initialization happened. */ - __pthread_initial_thread_bos = (void *) -1l; -#else - /* Determine stack size limits . */ - __pthread_init_max_stacksize (); -# ifdef _STACK_GROWS_UP - /* The initial thread already has all the stack it needs */ - __pthread_initial_thread_bos = (char *) - ((long)CURRENT_STACK_FRAME &~ (STACK_SIZE - 1)); -# else - /* For the initial stack, reserve at least STACK_SIZE bytes of stack - below the current stack address, and align that on a - STACK_SIZE boundary. */ - __pthread_initial_thread_bos = - (char *)(((long)CURRENT_STACK_FRAME - 2 * STACK_SIZE) & ~(STACK_SIZE - 1)); -# endif -#endif -#ifdef USE_TLS - /* Update the descriptor for the initial thread. */ - THREAD_SETMEM (((pthread_descr) NULL), p_pid, __getpid()); -# ifndef HAVE___THREAD - /* Likewise for the resolver state _res. */ - THREAD_SETMEM (((pthread_descr) NULL), p_resp, &_res); -# endif -#else - /* Update the descriptor for the initial thread. */ - __pthread_initial_thread.p_pid = __getpid(); - /* Likewise for the resolver state _res. */ - __pthread_initial_thread.p_resp = &_res; -#endif -#if !__ASSUME_REALTIME_SIGNALS - /* Initialize real-time signals. */ - init_rtsigs (); -#endif - /* Setup signal handlers for the initial thread. - Since signal handlers are shared between threads, these settings - will be inherited by all other threads. */ - sa.sa_handler = pthread_handle_sigrestart; - sigemptyset(&sa.sa_mask); - sa.sa_flags = 0; - __libc_sigaction(__pthread_sig_restart, &sa, NULL); - sa.sa_handler = pthread_handle_sigcancel; - sigaddset(&sa.sa_mask, __pthread_sig_restart); - // sa.sa_flags = 0; - __libc_sigaction(__pthread_sig_cancel, &sa, NULL); - if (__pthread_sig_debug > 0) { - sa.sa_handler = pthread_handle_sigdebug; - sigemptyset(&sa.sa_mask); - // sa.sa_flags = 0; - __libc_sigaction(__pthread_sig_debug, &sa, NULL); - } - /* Initially, block __pthread_sig_restart. Will be unblocked on demand. */ - sigemptyset(&mask); - sigaddset(&mask, __pthread_sig_restart); - sigprocmask(SIG_BLOCK, &mask, NULL); - /* And unblock __pthread_sig_cancel if it has been blocked. */ - sigdelset(&mask, __pthread_sig_restart); - sigaddset(&mask, __pthread_sig_cancel); - sigprocmask(SIG_UNBLOCK, &mask, NULL); - /* Register an exit function to kill all other threads. */ - /* Do it early so that user-registered atexit functions are called - before pthread_*exit_process. */ -#ifndef HAVE_Z_NODELETE - if (__builtin_expect (&__dso_handle != NULL, 1)) - __cxa_atexit ((void (*) (void *)) pthread_atexit_process, NULL, - __dso_handle); - else -#endif - __on_exit (pthread_onexit_process, NULL); - /* How many processors. */ - __pthread_smp_kernel = is_smp_system (); - -#ifdef SHARED - /* Transfer the old value from the dynamic linker's internal location. */ - *__libc_dl_error_tsd () = *(*GL(dl_error_catch_tsd)) (); - GL(dl_error_catch_tsd) = &__libc_dl_error_tsd; - - /* Make __rtld_lock_{,un}lock_recursive use pthread_mutex_{,un}lock, - keep the lock count from the ld.so implementation. */ - GL(dl_rtld_lock_recursive) = (void *) __pthread_mutex_lock; - GL(dl_rtld_unlock_recursive) = (void *) __pthread_mutex_unlock; - unsigned int rtld_lock_count = GL(dl_load_lock).mutex.__m_count; - GL(dl_load_lock).mutex.__m_count = 0; - while (rtld_lock_count-- > 0) - __pthread_mutex_lock (&GL(dl_load_lock).mutex); -#endif - -#ifdef USE_TLS - GL(dl_init_static_tls) = &__pthread_init_static_tls; -#endif -} - -void __pthread_initialize(void) -{ - pthread_initialize(); -} - -int __pthread_initialize_manager(void) -{ - int manager_pipe[2]; - int pid; - struct pthread_request request; - int report_events; - pthread_descr mgr; -#ifdef USE_TLS - tcbhead_t *tcbp; -#endif - - __pthread_multiple_threads = 1; -#if TLS_MULTIPLE_THREADS_IN_TCB || !defined USE_TLS || !TLS_DTV_AT_TP - __pthread_main_thread->p_multiple_threads = 1; -#endif - *__libc_multiple_threads_ptr = 1; - -#ifndef HAVE_Z_NODELETE - if (__builtin_expect (&__dso_handle != NULL, 1)) - __cxa_atexit ((void (*) (void *)) pthread_atexit_retcode, NULL, - __dso_handle); -#endif - - if (__pthread_max_stacksize == 0) - __pthread_init_max_stacksize (); - /* If basic initialization not done yet (e.g. we're called from a - constructor run before our constructor), do it now */ - if (__pthread_initial_thread_bos == NULL) pthread_initialize(); - /* Setup stack for thread manager */ - __pthread_manager_thread_bos = malloc(THREAD_MANAGER_STACK_SIZE); - if (__pthread_manager_thread_bos == NULL) return -1; - __pthread_manager_thread_tos = - __pthread_manager_thread_bos + THREAD_MANAGER_STACK_SIZE; - /* Setup pipe to communicate with thread manager */ - if (pipe(manager_pipe) == -1) { - free(__pthread_manager_thread_bos); - return -1; - } - -#ifdef USE_TLS - /* Allocate memory for the thread descriptor and the dtv. */ - tcbp = _dl_allocate_tls (NULL); - if (tcbp == NULL) { - free(__pthread_manager_thread_bos); - close_not_cancel(manager_pipe[0]); - close_not_cancel(manager_pipe[1]); - return -1; - } - -# if TLS_TCB_AT_TP - mgr = (pthread_descr) tcbp; -# elif TLS_DTV_AT_TP - /* pthread_descr is located right below tcbhead_t which _dl_allocate_tls - returns. */ - mgr = (pthread_descr) ((char *) tcbp - TLS_PRE_TCB_SIZE); -# endif - __pthread_handles[1].h_descr = manager_thread = mgr; - - /* Initialize the descriptor. */ -#if !defined USE_TLS || !TLS_DTV_AT_TP - mgr->p_header.data.tcb = tcbp; - mgr->p_header.data.self = mgr; - mgr->p_header.data.multiple_threads = 1; -#elif TLS_MULTIPLE_THREADS_IN_TCB - mgr->p_multiple_threads = 1; -#endif - mgr->p_lock = &__pthread_handles[1].h_lock; -# ifndef HAVE___THREAD - mgr->p_errnop = &mgr->p_errno; -# endif - mgr->p_start_args = (struct pthread_start_args) PTHREAD_START_ARGS_INITIALIZER(__pthread_manager); - mgr->p_nr = 1; -# if __LT_SPINLOCK_INIT != 0 - self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER; -# endif - mgr->p_alloca_cutoff = PTHREAD_STACK_MIN / 4; -#else - mgr = &__pthread_manager_thread; -#endif - - __pthread_manager_request = manager_pipe[1]; /* writing end */ - __pthread_manager_reader = manager_pipe[0]; /* reading end */ - - /* Start the thread manager */ - pid = 0; -#ifdef USE_TLS - if (__linuxthreads_initial_report_events != 0) - THREAD_SETMEM (((pthread_descr) NULL), p_report_events, - __linuxthreads_initial_report_events); - report_events = THREAD_GETMEM (((pthread_descr) NULL), p_report_events); -#else - if (__linuxthreads_initial_report_events != 0) - __pthread_initial_thread.p_report_events - = __linuxthreads_initial_report_events; - report_events = __pthread_initial_thread.p_report_events; -#endif - if (__builtin_expect (report_events, 0)) - { - /* It's a bit more complicated. We have to report the creation of - the manager thread. */ - int idx = __td_eventword (TD_CREATE); - uint32_t mask = __td_eventmask (TD_CREATE); - uint32_t event_bits; - -#ifdef USE_TLS - event_bits = THREAD_GETMEM_NC (((pthread_descr) NULL), - p_eventbuf.eventmask.event_bits[idx]); -#else - event_bits = __pthread_initial_thread.p_eventbuf.eventmask.event_bits[idx]; -#endif - - if ((mask & (__pthread_threads_events.event_bits[idx] | event_bits)) - != 0) - { - __pthread_lock(mgr->p_lock, NULL); - -#ifdef NEED_SEPARATE_REGISTER_STACK - pid = __clone2(__pthread_manager_event, - (void **) __pthread_manager_thread_bos, - THREAD_MANAGER_STACK_SIZE, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, - mgr); -#elif _STACK_GROWS_UP - pid = __clone(__pthread_manager_event, - (void **) __pthread_manager_thread_bos, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, - mgr); -#else - pid = __clone(__pthread_manager_event, - (void **) __pthread_manager_thread_tos, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, - mgr); -#endif - - if (pid != -1) - { - /* Now fill in the information about the new thread in - the newly created thread's data structure. We cannot let - the new thread do this since we don't know whether it was - already scheduled when we send the event. */ - mgr->p_eventbuf.eventdata = mgr; - mgr->p_eventbuf.eventnum = TD_CREATE; - __pthread_last_event = mgr; - mgr->p_tid = 2* PTHREAD_THREADS_MAX + 1; - mgr->p_pid = pid; - - /* Now call the function which signals the event. */ - __linuxthreads_create_event (); - } - - /* Now restart the thread. */ - __pthread_unlock(mgr->p_lock); - } - } - - if (__builtin_expect (pid, 0) == 0) - { -#ifdef NEED_SEPARATE_REGISTER_STACK - pid = __clone2(__pthread_manager, (void **) __pthread_manager_thread_bos, - THREAD_MANAGER_STACK_SIZE, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, mgr); -#elif _STACK_GROWS_UP - pid = __clone(__pthread_manager, (void **) __pthread_manager_thread_bos, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, mgr); -#else - pid = __clone(__pthread_manager, (void **) __pthread_manager_thread_tos, - CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, mgr); -#endif - } - if (__builtin_expect (pid, 0) == -1) { -#ifdef USE_TLS - _dl_deallocate_tls (tcbp, true); -#endif - free(__pthread_manager_thread_bos); - close_not_cancel(manager_pipe[0]); - close_not_cancel(manager_pipe[1]); - return -1; - } - mgr->p_tid = 2* PTHREAD_THREADS_MAX + 1; - mgr->p_pid = pid; - /* Make gdb aware of new thread manager */ - if (__builtin_expect (__pthread_threads_debug, 0) && __pthread_sig_debug > 0) - { - raise(__pthread_sig_debug); - /* We suspend ourself and gdb will wake us up when it is - ready to handle us. */ - __pthread_wait_for_restart_signal(thread_self()); - } - /* Synchronize debugging of the thread manager */ - request.req_kind = REQ_DEBUG; - TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request, - (char *) &request, sizeof(request))); - return 0; -} - -/* Thread creation */ - -int __pthread_create_2_1(pthread_t *thread, const pthread_attr_t *attr, - void * (*start_routine)(void *), void *arg) -{ - pthread_descr self = thread_self(); - struct pthread_request request; - int retval; - if (__builtin_expect (__pthread_manager_request, 0) < 0) { - if (__pthread_initialize_manager() < 0) return EAGAIN; - } - request.req_thread = self; - request.req_kind = REQ_CREATE; - request.req_args.create.attr = attr; - request.req_args.create.fn = start_routine; - request.req_args.create.arg = arg; - sigprocmask(SIG_SETMASK, (const sigset_t *) NULL, - &request.req_args.create.mask); - TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request, - (char *) &request, sizeof(request))); - suspend(self); - retval = THREAD_GETMEM(self, p_retcode); - if (__builtin_expect (retval, 0) == 0) - *thread = (pthread_t) THREAD_GETMEM(self, p_retval); - return retval; -} - -versioned_symbol (libpthread, __pthread_create_2_1, pthread_create, GLIBC_2_1); - -#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1) - -int __pthread_create_2_0(pthread_t *thread, const pthread_attr_t *attr, - void * (*start_routine)(void *), void *arg) -{ - /* The ATTR attribute is not really of type `pthread_attr_t *'. It has - the old size and access to the new members might crash the program. - We convert the struct now. */ - pthread_attr_t new_attr; - - if (attr != NULL) - { - size_t ps = __getpagesize (); - - memcpy (&new_attr, attr, - (size_t) &(((pthread_attr_t*)NULL)->__guardsize)); - new_attr.__guardsize = ps; - new_attr.__stackaddr_set = 0; - new_attr.__stackaddr = NULL; - new_attr.__stacksize = STACK_SIZE - ps; - attr = &new_attr; - } - return __pthread_create_2_1 (thread, attr, start_routine, arg); -} -compat_symbol (libpthread, __pthread_create_2_0, pthread_create, GLIBC_2_0); -#endif - -/* Simple operations on thread identifiers */ - -pthread_descr __pthread_thread_self(void) -{ - return thread_self(); -} - -pthread_t __pthread_self(void) -{ - pthread_descr self = thread_self(); - return THREAD_GETMEM(self, p_tid); -} -strong_alias (__pthread_self, pthread_self); - -int __pthread_equal(pthread_t thread1, pthread_t thread2) -{ - return thread1 == thread2; -} -strong_alias (__pthread_equal, pthread_equal); - -/* Helper function for thread_self in the case of user-provided stacks */ - -#ifndef THREAD_SELF - -pthread_descr __pthread_find_self(void) -{ - char * sp = CURRENT_STACK_FRAME; - pthread_handle h; - - /* __pthread_handles[0] is the initial thread, __pthread_handles[1] is - the manager threads handled specially in thread_self(), so start at 2 */ - h = __pthread_handles + 2; -# ifdef _STACK_GROWS_UP - while (! (sp >= (char *) h->h_descr && sp < h->h_descr->p_guardaddr)) h++; -# else - while (! (sp <= (char *) h->h_descr && sp >= h->h_bottom)) h++; -# endif - return h->h_descr; -} - -#else - -pthread_descr __pthread_self_stack(void) -{ - char *sp = CURRENT_STACK_FRAME; - pthread_handle h; - - if (sp >= __pthread_manager_thread_bos && sp < __pthread_manager_thread_tos) - return manager_thread; - h = __pthread_handles + 2; -# ifdef USE_TLS -# ifdef _STACK_GROWS_UP - while (h->h_descr == NULL - || ! (sp >= h->h_descr->p_stackaddr && sp < h->h_descr->p_guardaddr)) - h++; -# else - while (h->h_descr == NULL - || ! (sp <= (char *) h->h_descr->p_stackaddr && sp >= h->h_bottom)) - h++; -# endif -# else -# ifdef _STACK_GROWS_UP - while (! (sp >= (char *) h->h_descr && sp < h->h_descr->p_guardaddr)) - h++; -# else - while (! (sp <= (char *) h->h_descr && sp >= h->h_bottom)) - h++; -# endif -# endif - return h->h_descr; -} - -#endif - -/* Thread scheduling */ - -int __pthread_setschedparam(pthread_t thread, int policy, - const struct sched_param *param) -{ - pthread_handle handle = thread_handle(thread); - pthread_descr th; - - __pthread_lock(&handle->h_lock, NULL); - if (__builtin_expect (invalid_handle(handle, thread), 0)) { - __pthread_unlock(&handle->h_lock); - return ESRCH; - } - th = handle->h_descr; - if (__builtin_expect (__sched_setscheduler(th->p_pid, policy, param) == -1, - 0)) { - __pthread_unlock(&handle->h_lock); - return errno; - } - th->p_priority = policy == SCHED_OTHER ? 0 : param->sched_priority; - __pthread_unlock(&handle->h_lock); - if (__pthread_manager_request >= 0) - __pthread_manager_adjust_prio(th->p_priority); - return 0; -} -strong_alias (__pthread_setschedparam, pthread_setschedparam); - -int __pthread_getschedparam(pthread_t thread, int *policy, - struct sched_param *param) -{ - pthread_handle handle = thread_handle(thread); - int pid, pol; - - __pthread_lock(&handle->h_lock, NULL); - if (__builtin_expect (invalid_handle(handle, thread), 0)) { - __pthread_unlock(&handle->h_lock); - return ESRCH; - } - pid = handle->h_descr->p_pid; - __pthread_unlock(&handle->h_lock); - pol = __sched_getscheduler(pid); - if (__builtin_expect (pol, 0) == -1) return errno; - if (__sched_getparam(pid, param) == -1) return errno; - *policy = pol; - return 0; -} -strong_alias (__pthread_getschedparam, pthread_getschedparam); - -int __pthread_yield (void) -{ - /* For now this is equivalent with the POSIX call. */ - return sched_yield (); -} -weak_alias (__pthread_yield, pthread_yield) - -/* Process-wide exit() request */ - -static void pthread_onexit_process(int retcode, void *arg) -{ - if (__builtin_expect (__pthread_manager_request, 0) >= 0) { - struct pthread_request request; - pthread_descr self = thread_self(); - - request.req_thread = self; - request.req_kind = REQ_PROCESS_EXIT; - request.req_args.exit.code = retcode; - TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request, - (char *) &request, sizeof(request))); - suspend(self); - /* Main thread should accumulate times for thread manager and its - children, so that timings for main thread account for all threads. */ - if (self == __pthread_main_thread) - { -#ifdef USE_TLS - waitpid(manager_thread->p_pid, NULL, __WCLONE); -#else - waitpid(__pthread_manager_thread.p_pid, NULL, __WCLONE); -#endif - /* Since all threads have been asynchronously terminated - (possibly holding locks), free cannot be used any more. - For mtrace, we'd like to print something though. */ - /* #ifdef USE_TLS - tcbhead_t *tcbp = (tcbhead_t *) manager_thread; - # if TLS_DTV_AT_TP - tcbp = (tcbhead_t) ((char *) tcbp + TLS_PRE_TCB_SIZE); - # endif - _dl_deallocate_tls (tcbp, true); - #endif - free (__pthread_manager_thread_bos); */ - __pthread_manager_thread_bos = __pthread_manager_thread_tos = NULL; - } - } -} - -#ifndef HAVE_Z_NODELETE -static int __pthread_atexit_retcode; - -static void pthread_atexit_process(void *arg, int retcode) -{ - pthread_onexit_process (retcode ?: __pthread_atexit_retcode, arg); -} - -static void pthread_atexit_retcode(void *arg, int retcode) -{ - __pthread_atexit_retcode = retcode; -} -#endif - -/* The handler for the RESTART signal just records the signal received - in the thread descriptor, and optionally performs a siglongjmp - (for pthread_cond_timedwait). */ - -static void pthread_handle_sigrestart(int sig) -{ - pthread_descr self = check_thread_self(); - THREAD_SETMEM(self, p_signal, sig); - if (THREAD_GETMEM(self, p_signal_jmp) != NULL) - siglongjmp(*THREAD_GETMEM(self, p_signal_jmp), 1); -} - -/* The handler for the CANCEL signal checks for cancellation - (in asynchronous mode), for process-wide exit and exec requests. - For the thread manager thread, redirect the signal to - __pthread_manager_sighandler. */ - -static void pthread_handle_sigcancel(int sig) -{ - pthread_descr self = check_thread_self(); - sigjmp_buf * jmpbuf; - - if (self == manager_thread) - { - __pthread_manager_sighandler(sig); - return; - } - if (__builtin_expect (__pthread_exit_requested, 0)) { - /* Main thread should accumulate times for thread manager and its - children, so that timings for main thread account for all threads. */ - if (self == __pthread_main_thread) { -#ifdef USE_TLS - waitpid(manager_thread->p_pid, NULL, __WCLONE); -#else - waitpid(__pthread_manager_thread.p_pid, NULL, __WCLONE); -#endif - } - _exit(__pthread_exit_code); - } - if (__builtin_expect (THREAD_GETMEM(self, p_canceled), 0) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE) { - if (THREAD_GETMEM(self, p_canceltype) == PTHREAD_CANCEL_ASYNCHRONOUS) - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - jmpbuf = THREAD_GETMEM(self, p_cancel_jmp); - if (jmpbuf != NULL) { - THREAD_SETMEM(self, p_cancel_jmp, NULL); - siglongjmp(*jmpbuf, 1); - } - } -} - -/* Handler for the DEBUG signal. - The debugging strategy is as follows: - On reception of a REQ_DEBUG request (sent by new threads created to - the thread manager under debugging mode), the thread manager throws - __pthread_sig_debug to itself. The debugger (if active) intercepts - this signal, takes into account new threads and continue execution - of the thread manager by propagating the signal because it doesn't - know what it is specifically done for. In the current implementation, - the thread manager simply discards it. */ - -static void pthread_handle_sigdebug(int sig) -{ - /* Nothing */ -} - -/* Reset the state of the thread machinery after a fork(). - Close the pipe used for requests and set the main thread to the forked - thread. - Notice that we can't free the stack segments, as the forked thread - may hold pointers into them. */ - -void __pthread_reset_main_thread(void) -{ - pthread_descr self = thread_self(); - - if (__pthread_manager_request != -1) { - /* Free the thread manager stack */ - free(__pthread_manager_thread_bos); - __pthread_manager_thread_bos = __pthread_manager_thread_tos = NULL; - /* Close the two ends of the pipe */ - close_not_cancel(__pthread_manager_request); - close_not_cancel(__pthread_manager_reader); - __pthread_manager_request = __pthread_manager_reader = -1; - } - - /* Update the pid of the main thread */ - THREAD_SETMEM(self, p_pid, __getpid()); - /* Make the forked thread the main thread */ - __pthread_main_thread = self; - THREAD_SETMEM(self, p_nextlive, self); - THREAD_SETMEM(self, p_prevlive, self); -#if !(USE_TLS && HAVE___THREAD) - /* Now this thread modifies the global variables. */ - THREAD_SETMEM(self, p_errnop, &_errno); - THREAD_SETMEM(self, p_h_errnop, &_h_errno); - THREAD_SETMEM(self, p_resp, &_res); -#endif - -#ifndef FLOATING_STACKS - /* This is to undo the setrlimit call in __pthread_init_max_stacksize. - XXX This can be wrong if the user set the limit during the run. */ - { - struct rlimit limit; - if (getrlimit (RLIMIT_STACK, &limit) == 0 - && limit.rlim_cur != limit.rlim_max) - { - limit.rlim_cur = limit.rlim_max; - setrlimit(RLIMIT_STACK, &limit); - } - } -#endif -} - -/* Process-wide exec() request */ - -void __pthread_kill_other_threads_np(void) -{ - struct sigaction sa; - /* Terminate all other threads and thread manager */ - pthread_onexit_process(0, NULL); - /* Make current thread the main thread in case the calling thread - changes its mind, does not exec(), and creates new threads instead. */ - __pthread_reset_main_thread(); - - /* Reset the signal handlers behaviour for the signals the - implementation uses since this would be passed to the new - process. */ - sigemptyset(&sa.sa_mask); - sa.sa_flags = 0; - sa.sa_handler = SIG_DFL; - __libc_sigaction(__pthread_sig_restart, &sa, NULL); - __libc_sigaction(__pthread_sig_cancel, &sa, NULL); - if (__pthread_sig_debug > 0) - __libc_sigaction(__pthread_sig_debug, &sa, NULL); -} -weak_alias (__pthread_kill_other_threads_np, pthread_kill_other_threads_np) - -/* Concurrency symbol level. */ -static int current_level; - -int __pthread_setconcurrency(int level) -{ - /* We don't do anything unless we have found a useful interpretation. */ - current_level = level; - return 0; -} -weak_alias (__pthread_setconcurrency, pthread_setconcurrency) - -int __pthread_getconcurrency(void) -{ - return current_level; -} -weak_alias (__pthread_getconcurrency, pthread_getconcurrency) - -/* Primitives for controlling thread execution */ - -void __pthread_wait_for_restart_signal(pthread_descr self) -{ - sigset_t mask; - - sigprocmask(SIG_SETMASK, NULL, &mask); /* Get current signal mask */ - sigdelset(&mask, __pthread_sig_restart); /* Unblock the restart signal */ - THREAD_SETMEM(self, p_signal, 0); - do { - __pthread_sigsuspend(&mask); /* Wait for signal. Must not be a - cancellation point. */ - } while (THREAD_GETMEM(self, p_signal) !=__pthread_sig_restart); - - READ_MEMORY_BARRIER(); /* See comment in __pthread_restart_new */ -} - -#if !__ASSUME_REALTIME_SIGNALS -/* The _old variants are for 2.0 and early 2.1 kernels which don't have RT - signals. - On these kernels, we use SIGUSR1 and SIGUSR2 for restart and cancellation. - Since the restart signal does not queue, we use an atomic counter to create - queuing semantics. This is needed to resolve a rare race condition in - pthread_cond_timedwait_relative. */ - -void __pthread_restart_old(pthread_descr th) -{ - if (atomic_increment(&th->p_resume_count) == -1) - kill(th->p_pid, __pthread_sig_restart); -} - -void __pthread_suspend_old(pthread_descr self) -{ - if (atomic_decrement(&self->p_resume_count) <= 0) - __pthread_wait_for_restart_signal(self); -} - -int -__pthread_timedsuspend_old(pthread_descr self, const struct timespec *abstime) -{ - sigset_t unblock, initial_mask; - int was_signalled = 0; - sigjmp_buf jmpbuf; - - if (atomic_decrement(&self->p_resume_count) == 0) { - /* Set up a longjmp handler for the restart signal, unblock - the signal and sleep. */ - - if (sigsetjmp(jmpbuf, 1) == 0) { - THREAD_SETMEM(self, p_signal_jmp, &jmpbuf); - THREAD_SETMEM(self, p_signal, 0); - /* Unblock the restart signal */ - sigemptyset(&unblock); - sigaddset(&unblock, __pthread_sig_restart); - sigprocmask(SIG_UNBLOCK, &unblock, &initial_mask); - - while (1) { - struct timeval now; - struct timespec reltime; - - /* Compute a time offset relative to now. */ - __gettimeofday (&now, NULL); - reltime.tv_nsec = abstime->tv_nsec - now.tv_usec * 1000; - reltime.tv_sec = abstime->tv_sec - now.tv_sec; - if (reltime.tv_nsec < 0) { - reltime.tv_nsec += 1000000000; - reltime.tv_sec -= 1; - } - - /* Sleep for the required duration. If woken by a signal, - resume waiting as required by Single Unix Specification. */ - if (reltime.tv_sec < 0 || __libc_nanosleep(&reltime, NULL) == 0) - break; - } - - /* Block the restart signal again */ - sigprocmask(SIG_SETMASK, &initial_mask, NULL); - was_signalled = 0; - } else { - was_signalled = 1; - } - THREAD_SETMEM(self, p_signal_jmp, NULL); - } - - /* Now was_signalled is true if we exited the above code - due to the delivery of a restart signal. In that case, - we know we have been dequeued and resumed and that the - resume count is balanced. Otherwise, there are some - cases to consider. First, try to bump up the resume count - back to zero. If it goes to 1, it means restart() was - invoked on this thread. The signal must be consumed - and the count bumped down and everything is cool. We - can return a 1 to the caller. - Otherwise, no restart was delivered yet, so a potential - race exists; we return a 0 to the caller which must deal - with this race in an appropriate way; for example by - atomically removing the thread from consideration for a - wakeup---if such a thing fails, it means a restart is - being delivered. */ - - if (!was_signalled) { - if (atomic_increment(&self->p_resume_count) != -1) { - __pthread_wait_for_restart_signal(self); - atomic_decrement(&self->p_resume_count); /* should be zero now! */ - /* woke spontaneously and consumed restart signal */ - return 1; - } - /* woke spontaneously but did not consume restart---caller must resolve */ - return 0; - } - /* woken due to restart signal */ - return 1; -} -#endif /* __ASSUME_REALTIME_SIGNALS */ - -void __pthread_restart_new(pthread_descr th) -{ - /* The barrier is proabably not needed, in which case it still documents - our assumptions. The intent is to commit previous writes to shared - memory so the woken thread will have a consistent view. Complementary - read barriers are present to the suspend functions. */ - WRITE_MEMORY_BARRIER(); - kill(th->p_pid, __pthread_sig_restart); -} - -/* There is no __pthread_suspend_new because it would just - be a wasteful wrapper for __pthread_wait_for_restart_signal */ - -int -__pthread_timedsuspend_new(pthread_descr self, const struct timespec *abstime) -{ - sigset_t unblock, initial_mask; - int was_signalled = 0; - sigjmp_buf jmpbuf; - - if (sigsetjmp(jmpbuf, 1) == 0) { - THREAD_SETMEM(self, p_signal_jmp, &jmpbuf); - THREAD_SETMEM(self, p_signal, 0); - /* Unblock the restart signal */ - sigemptyset(&unblock); - sigaddset(&unblock, __pthread_sig_restart); - sigprocmask(SIG_UNBLOCK, &unblock, &initial_mask); - - while (1) { - struct timeval now; - struct timespec reltime; - - /* Compute a time offset relative to now. */ - __gettimeofday (&now, NULL); - reltime.tv_nsec = abstime->tv_nsec - now.tv_usec * 1000; - reltime.tv_sec = abstime->tv_sec - now.tv_sec; - if (reltime.tv_nsec < 0) { - reltime.tv_nsec += 1000000000; - reltime.tv_sec -= 1; - } - - /* Sleep for the required duration. If woken by a signal, - resume waiting as required by Single Unix Specification. */ - if (reltime.tv_sec < 0 || __libc_nanosleep(&reltime, NULL) == 0) - break; - } - - /* Block the restart signal again */ - sigprocmask(SIG_SETMASK, &initial_mask, NULL); - was_signalled = 0; - } else { - was_signalled = 1; - } - THREAD_SETMEM(self, p_signal_jmp, NULL); - - /* Now was_signalled is true if we exited the above code - due to the delivery of a restart signal. In that case, - everything is cool. We have been removed from whatever - we were waiting on by the other thread, and consumed its signal. - - Otherwise we this thread woke up spontaneously, or due to a signal other - than restart. This is an ambiguous case that must be resolved by - the caller; the thread is still eligible for a restart wakeup - so there is a race. */ - - READ_MEMORY_BARRIER(); /* See comment in __pthread_restart_new */ - return was_signalled; -} - - -/* Debugging aid */ - -#ifdef DEBUG -#include <stdarg.h> - -void __pthread_message(const char * fmt, ...) -{ - char buffer[1024]; - va_list args; - sprintf(buffer, "%05d : ", __getpid()); - va_start(args, fmt); - vsnprintf(buffer + 8, sizeof(buffer) - 8, fmt, args); - va_end(args); - TEMP_FAILURE_RETRY(write_not_cancel(2, buffer, strlen(buffer))); -} - -#endif diff --git a/linuxthreads/pthread_atfork.c b/linuxthreads/pthread_atfork.c deleted file mode 100644 index 2464acb6b2..0000000000 --- a/linuxthreads/pthread_atfork.c +++ /dev/null @@ -1,63 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The GNU Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - Note that people who make modified versions of this file are not - obligated to grant this special exception for their modified - versions; it is their choice whether to do so. The GNU Lesser - General Public License gives permission to release a modified - version without this exception; this exception also makes it - possible to release a modified version which carries forward this - exception. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include "internals.h" -#include <fork.h> - -/* This is defined by newer gcc version unique for each module. */ -extern void *__dso_handle __attribute__ ((__weak__)); - - -/* Hide the symbol so that no definition but the one locally in the - executable or DSO is used. */ -int -#ifndef __pthread_atfork -/* Don't mark the compatibility function as hidden. */ -attribute_hidden -#endif -__pthread_atfork (prepare, parent, child) - void (*prepare) (void); - void (*parent) (void); - void (*child) (void); -{ - return __register_atfork (prepare, parent, child, - &__dso_handle == NULL ? NULL : __dso_handle); -} -#ifndef __pthread_atfork -extern int pthread_atfork (void (*prepare) (void), void (*parent) (void), - void (*child) (void)) attribute_hidden; -strong_alias (__pthread_atfork, pthread_atfork) -#endif diff --git a/linuxthreads/pthread_setegid.c b/linuxthreads/pthread_setegid.c deleted file mode 100644 index 9e16828fa5..0000000000 --- a/linuxthreads/pthread_setegid.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <unistd.h> - - -int -pthread_setegid_np (gid_t gid) -{ - return setegid (gid); -} diff --git a/linuxthreads/pthread_seteuid.c b/linuxthreads/pthread_seteuid.c deleted file mode 100644 index 9d29d81118..0000000000 --- a/linuxthreads/pthread_seteuid.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <unistd.h> - - -int -pthread_seteuid_np (uid_t uid) -{ - return seteuid (uid); -} diff --git a/linuxthreads/pthread_setgid.c b/linuxthreads/pthread_setgid.c deleted file mode 100644 index db37dd1465..0000000000 --- a/linuxthreads/pthread_setgid.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <unistd.h> - - -int -pthread_setgid_np (gid_t gid) -{ - return setgid (gid); -} diff --git a/linuxthreads/pthread_setregid.c b/linuxthreads/pthread_setregid.c deleted file mode 100644 index bd75154c50..0000000000 --- a/linuxthreads/pthread_setregid.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <unistd.h> - - -int -pthread_setregid_np (gid_t rgid, gid_t egid) -{ - return setregid (rgid, egid); -} diff --git a/linuxthreads/pthread_setresgid.c b/linuxthreads/pthread_setresgid.c deleted file mode 100644 index b5702804ee..0000000000 --- a/linuxthreads/pthread_setresgid.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <unistd.h> - - -int -pthread_setresgid_np (gid_t rgid, gid_t egid, gid_t sgid) -{ - return setresgid (rgid, egid, sgid); -} diff --git a/linuxthreads/pthread_setresuid.c b/linuxthreads/pthread_setresuid.c deleted file mode 100644 index ceb724deaf..0000000000 --- a/linuxthreads/pthread_setresuid.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <unistd.h> - - -int -pthread_setresuid_np (uid_t ruid, uid_t euid, uid_t suid) -{ - return setresuid (ruid, euid, suid); -} diff --git a/linuxthreads/pthread_setreuid.c b/linuxthreads/pthread_setreuid.c deleted file mode 100644 index ae8933ece5..0000000000 --- a/linuxthreads/pthread_setreuid.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <unistd.h> - - -int -pthread_setreuid_np (uid_t ruid, uid_t euid) -{ - return setreuid (ruid, euid); -} diff --git a/linuxthreads/pthread_setuid.c b/linuxthreads/pthread_setuid.c deleted file mode 100644 index f82ccc1a2f..0000000000 --- a/linuxthreads/pthread_setuid.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <unistd.h> - - -int -pthread_setuid_np (uid_t uid) -{ - return setuid (uid); -} diff --git a/linuxthreads/queue.h b/linuxthreads/queue.h deleted file mode 100644 index 28bd75531c..0000000000 --- a/linuxthreads/queue.h +++ /dev/null @@ -1,61 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Waiting queues */ - -/* Waiting queues are represented by lists of thread descriptors - linked through their p_nextwaiting field. The lists are kept - sorted by decreasing priority, and then decreasing waiting time. */ - -static inline void enqueue(pthread_descr * q, pthread_descr th) -{ - int prio = th->p_priority; - ASSERT(th->p_nextwaiting == NULL); - for (; *q != NULL; q = &((*q)->p_nextwaiting)) { - if (prio > (*q)->p_priority) { - th->p_nextwaiting = *q; - *q = th; - return; - } - } - *q = th; -} - -static inline pthread_descr dequeue(pthread_descr * q) -{ - pthread_descr th; - th = *q; - if (th != NULL) { - *q = th->p_nextwaiting; - th->p_nextwaiting = NULL; - } - return th; -} - -static inline int remove_from_queue(pthread_descr * q, pthread_descr th) -{ - for (; *q != NULL; q = &((*q)->p_nextwaiting)) { - if (*q == th) { - *q = th->p_nextwaiting; - th->p_nextwaiting = NULL; - return 1; - } - } - return 0; -} - -static inline int queue_is_empty(pthread_descr * q) -{ - return *q == NULL; -} diff --git a/linuxthreads/restart.h b/linuxthreads/restart.h deleted file mode 100644 index 24d9fab748..0000000000 --- a/linuxthreads/restart.h +++ /dev/null @@ -1,49 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -#include <signal.h> -#include <kernel-features.h> - -/* Primitives for controlling thread execution */ - -static inline void restart(pthread_descr th) -{ - /* See pthread.c */ -#if __ASSUME_REALTIME_SIGNALS - __pthread_restart_new(th); -#else - __pthread_restart(th); -#endif -} - -static inline void suspend(pthread_descr self) -{ - /* See pthread.c */ -#if __ASSUME_REALTIME_SIGNALS - __pthread_wait_for_restart_signal(self); -#else - __pthread_suspend(self); -#endif -} - -static inline int timedsuspend(pthread_descr self, - const struct timespec *abstime) -{ - /* See pthread.c */ -#if __ASSUME_REALTIME_SIGNALS - return __pthread_timedsuspend_new(self, abstime); -#else - return __pthread_timedsuspend(self, abstime); -#endif -} diff --git a/linuxthreads/rwlock.c b/linuxthreads/rwlock.c deleted file mode 100644 index f565f18706..0000000000 --- a/linuxthreads/rwlock.c +++ /dev/null @@ -1,658 +0,0 @@ -/* Read-write lock implementation. - Copyright (C) 1998, 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Xavier Leroy <Xavier.Leroy@inria.fr> - and Ulrich Drepper <drepper@cygnus.com>, 1998. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <bits/libc-lock.h> -#include <errno.h> -#include <pthread.h> -#include <stdlib.h> -#include "internals.h" -#include "queue.h" -#include "spinlock.h" -#include "restart.h" - -/* Function called by pthread_cancel to remove the thread from - waiting inside pthread_rwlock_timedrdlock or pthread_rwlock_timedwrlock. */ - -static int rwlock_rd_extricate_func(void *obj, pthread_descr th) -{ - pthread_rwlock_t *rwlock = obj; - int did_remove = 0; - - __pthread_lock(&rwlock->__rw_lock, NULL); - did_remove = remove_from_queue(&rwlock->__rw_read_waiting, th); - __pthread_unlock(&rwlock->__rw_lock); - - return did_remove; -} - -static int rwlock_wr_extricate_func(void *obj, pthread_descr th) -{ - pthread_rwlock_t *rwlock = obj; - int did_remove = 0; - - __pthread_lock(&rwlock->__rw_lock, NULL); - did_remove = remove_from_queue(&rwlock->__rw_write_waiting, th); - __pthread_unlock(&rwlock->__rw_lock); - - return did_remove; -} - -/* - * Check whether the calling thread already owns one or more read locks on the - * specified lock. If so, return a pointer to the read lock info structure - * corresponding to that lock. - */ - -static pthread_readlock_info * -rwlock_is_in_list(pthread_descr self, pthread_rwlock_t *rwlock) -{ - pthread_readlock_info *info; - - for (info = THREAD_GETMEM (self, p_readlock_list); info != NULL; - info = info->pr_next) - { - if (info->pr_lock == rwlock) - return info; - } - - return NULL; -} - -/* - * Add a new lock to the thread's list of locks for which it has a read lock. - * A new info node must be allocated for this, which is taken from the thread's - * free list, or by calling malloc. If malloc fails, a null pointer is - * returned. Otherwise the lock info structure is initialized and pushed - * onto the thread's list. - */ - -static pthread_readlock_info * -rwlock_add_to_list(pthread_descr self, pthread_rwlock_t *rwlock) -{ - pthread_readlock_info *info = THREAD_GETMEM (self, p_readlock_free); - - if (info != NULL) - THREAD_SETMEM (self, p_readlock_free, info->pr_next); - else - info = malloc(sizeof *info); - - if (info == NULL) - return NULL; - - info->pr_lock_count = 1; - info->pr_lock = rwlock; - info->pr_next = THREAD_GETMEM (self, p_readlock_list); - THREAD_SETMEM (self, p_readlock_list, info); - - return info; -} - -/* - * If the thread owns a read lock over the given pthread_rwlock_t, - * and this read lock is tracked in the thread's lock list, - * this function returns a pointer to the info node in that list. - * It also decrements the lock count within that node, and if - * it reaches zero, it removes the node from the list. - * If nothing is found, it returns a null pointer. - */ - -static pthread_readlock_info * -rwlock_remove_from_list(pthread_descr self, pthread_rwlock_t *rwlock) -{ - pthread_readlock_info **pinfo; - - for (pinfo = &self->p_readlock_list; *pinfo != NULL; pinfo = &(*pinfo)->pr_next) - { - if ((*pinfo)->pr_lock == rwlock) - { - pthread_readlock_info *info = *pinfo; - if (--info->pr_lock_count == 0) - *pinfo = info->pr_next; - return info; - } - } - - return NULL; -} - -/* - * This function checks whether the conditions are right to place a read lock. - * It returns 1 if so, otherwise zero. The rwlock's internal lock must be - * locked upon entry. - */ - -static int -rwlock_can_rdlock(pthread_rwlock_t *rwlock, int have_lock_already) -{ - /* Can't readlock; it is write locked. */ - if (rwlock->__rw_writer != NULL) - return 0; - - /* Lock prefers readers; get it. */ - if (rwlock->__rw_kind == PTHREAD_RWLOCK_PREFER_READER_NP) - return 1; - - /* Lock prefers writers, but none are waiting. */ - if (queue_is_empty(&rwlock->__rw_write_waiting)) - return 1; - - /* Writers are waiting, but this thread already has a read lock */ - if (have_lock_already) - return 1; - - /* Writers are waiting, and this is a new lock */ - return 0; -} - -/* - * This function helps support brain-damaged recursive read locking - * semantics required by Unix 98, while maintaining write priority. - * This basically determines whether this thread already holds a read lock - * already. It returns 1 if so, otherwise it returns 0. - * - * If the thread has any ``untracked read locks'' then it just assumes - * that this lock is among them, just to be safe, and returns 1. - * - * Also, if it finds the thread's lock in the list, it sets the pointer - * referenced by pexisting to refer to the list entry. - * - * If the thread has no untracked locks, and the lock is not found - * in its list, then it is added to the list. If this fails, - * then *pout_of_mem is set to 1. - */ - -static int -rwlock_have_already(pthread_descr *pself, pthread_rwlock_t *rwlock, - pthread_readlock_info **pexisting, int *pout_of_mem) -{ - pthread_readlock_info *existing = NULL; - int out_of_mem = 0, have_lock_already = 0; - pthread_descr self = *pself; - - if (rwlock->__rw_kind == PTHREAD_RWLOCK_PREFER_WRITER_NP) - { - if (!self) - *pself = self = thread_self(); - - existing = rwlock_is_in_list(self, rwlock); - - if (existing != NULL - || THREAD_GETMEM (self, p_untracked_readlock_count) > 0) - have_lock_already = 1; - else - { - existing = rwlock_add_to_list(self, rwlock); - if (existing == NULL) - out_of_mem = 1; - } - } - - *pout_of_mem = out_of_mem; - *pexisting = existing; - - return have_lock_already; -} - -int -__pthread_rwlock_init (pthread_rwlock_t *rwlock, - const pthread_rwlockattr_t *attr) -{ - __pthread_init_lock(&rwlock->__rw_lock); - rwlock->__rw_readers = 0; - rwlock->__rw_writer = NULL; - rwlock->__rw_read_waiting = NULL; - rwlock->__rw_write_waiting = NULL; - - if (attr == NULL) - { - rwlock->__rw_kind = PTHREAD_RWLOCK_DEFAULT_NP; - rwlock->__rw_pshared = PTHREAD_PROCESS_PRIVATE; - } - else - { - rwlock->__rw_kind = attr->__lockkind; - rwlock->__rw_pshared = attr->__pshared; - } - - return 0; -} -strong_alias (__pthread_rwlock_init, pthread_rwlock_init) - - -int -__pthread_rwlock_destroy (pthread_rwlock_t *rwlock) -{ - int readers; - _pthread_descr writer; - - __pthread_lock (&rwlock->__rw_lock, NULL); - readers = rwlock->__rw_readers; - writer = rwlock->__rw_writer; - __pthread_unlock (&rwlock->__rw_lock); - - if (readers > 0 || writer != NULL) - return EBUSY; - - return 0; -} -strong_alias (__pthread_rwlock_destroy, pthread_rwlock_destroy) - -int -__pthread_rwlock_rdlock (pthread_rwlock_t *rwlock) -{ - pthread_descr self = NULL; - pthread_readlock_info *existing; - int out_of_mem, have_lock_already; - - have_lock_already = rwlock_have_already(&self, rwlock, - &existing, &out_of_mem); - - if (self == NULL) - self = thread_self (); - - for (;;) - { - __pthread_lock (&rwlock->__rw_lock, self); - - if (rwlock_can_rdlock(rwlock, have_lock_already)) - break; - - enqueue (&rwlock->__rw_read_waiting, self); - __pthread_unlock (&rwlock->__rw_lock); - suspend (self); /* This is not a cancellation point */ - } - - ++rwlock->__rw_readers; - __pthread_unlock (&rwlock->__rw_lock); - - if (have_lock_already || out_of_mem) - { - if (existing != NULL) - ++existing->pr_lock_count; - else - ++self->p_untracked_readlock_count; - } - - return 0; -} -strong_alias (__pthread_rwlock_rdlock, pthread_rwlock_rdlock) - -int -__pthread_rwlock_timedrdlock (pthread_rwlock_t *rwlock, - const struct timespec *abstime) -{ - pthread_descr self = NULL; - pthread_readlock_info *existing; - int out_of_mem, have_lock_already; - pthread_extricate_if extr; - - if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) - return EINVAL; - - have_lock_already = rwlock_have_already(&self, rwlock, - &existing, &out_of_mem); - - if (self == NULL) - self = thread_self (); - - /* Set up extrication interface */ - extr.pu_object = rwlock; - extr.pu_extricate_func = rwlock_rd_extricate_func; - - /* Register extrication interface */ - __pthread_set_own_extricate_if (self, &extr); - - for (;;) - { - __pthread_lock (&rwlock->__rw_lock, self); - - if (rwlock_can_rdlock(rwlock, have_lock_already)) - break; - - enqueue (&rwlock->__rw_read_waiting, self); - __pthread_unlock (&rwlock->__rw_lock); - /* This is not a cancellation point */ - if (timedsuspend (self, abstime) == 0) - { - int was_on_queue; - - __pthread_lock (&rwlock->__rw_lock, self); - was_on_queue = remove_from_queue (&rwlock->__rw_read_waiting, self); - __pthread_unlock (&rwlock->__rw_lock); - - if (was_on_queue) - { - __pthread_set_own_extricate_if (self, 0); - return ETIMEDOUT; - } - - /* Eat the outstanding restart() from the signaller */ - suspend (self); - } - } - - __pthread_set_own_extricate_if (self, 0); - - ++rwlock->__rw_readers; - __pthread_unlock (&rwlock->__rw_lock); - - if (have_lock_already || out_of_mem) - { - if (existing != NULL) - ++existing->pr_lock_count; - else - ++self->p_untracked_readlock_count; - } - - return 0; -} -strong_alias (__pthread_rwlock_timedrdlock, pthread_rwlock_timedrdlock) - -int -__pthread_rwlock_tryrdlock (pthread_rwlock_t *rwlock) -{ - pthread_descr self = thread_self(); - pthread_readlock_info *existing; - int out_of_mem, have_lock_already; - int retval = EBUSY; - - have_lock_already = rwlock_have_already(&self, rwlock, - &existing, &out_of_mem); - - __pthread_lock (&rwlock->__rw_lock, self); - - /* 0 is passed to here instead of have_lock_already. - This is to meet Single Unix Spec requirements: - if writers are waiting, pthread_rwlock_tryrdlock - does not acquire a read lock, even if the caller has - one or more read locks already. */ - - if (rwlock_can_rdlock(rwlock, 0)) - { - ++rwlock->__rw_readers; - retval = 0; - } - - __pthread_unlock (&rwlock->__rw_lock); - - if (retval == 0) - { - if (have_lock_already || out_of_mem) - { - if (existing != NULL) - ++existing->pr_lock_count; - else - ++self->p_untracked_readlock_count; - } - } - - return retval; -} -strong_alias (__pthread_rwlock_tryrdlock, pthread_rwlock_tryrdlock) - - -int -__pthread_rwlock_wrlock (pthread_rwlock_t *rwlock) -{ - pthread_descr self = thread_self (); - - while(1) - { - __pthread_lock (&rwlock->__rw_lock, self); - if (rwlock->__rw_readers == 0 && rwlock->__rw_writer == NULL) - { - rwlock->__rw_writer = self; - __pthread_unlock (&rwlock->__rw_lock); - return 0; - } - - /* Suspend ourselves, then try again */ - enqueue (&rwlock->__rw_write_waiting, self); - __pthread_unlock (&rwlock->__rw_lock); - suspend (self); /* This is not a cancellation point */ - } -} -strong_alias (__pthread_rwlock_wrlock, pthread_rwlock_wrlock) - - -int -__pthread_rwlock_timedwrlock (pthread_rwlock_t *rwlock, - const struct timespec *abstime) -{ - pthread_descr self; - pthread_extricate_if extr; - - if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) - return EINVAL; - - self = thread_self (); - - /* Set up extrication interface */ - extr.pu_object = rwlock; - extr.pu_extricate_func = rwlock_wr_extricate_func; - - /* Register extrication interface */ - __pthread_set_own_extricate_if (self, &extr); - - while(1) - { - __pthread_lock (&rwlock->__rw_lock, self); - - if (rwlock->__rw_readers == 0 && rwlock->__rw_writer == NULL) - { - rwlock->__rw_writer = self; - __pthread_set_own_extricate_if (self, 0); - __pthread_unlock (&rwlock->__rw_lock); - return 0; - } - - /* Suspend ourselves, then try again */ - enqueue (&rwlock->__rw_write_waiting, self); - __pthread_unlock (&rwlock->__rw_lock); - /* This is not a cancellation point */ - if (timedsuspend (self, abstime) == 0) - { - int was_on_queue; - - __pthread_lock (&rwlock->__rw_lock, self); - was_on_queue = remove_from_queue (&rwlock->__rw_write_waiting, self); - __pthread_unlock (&rwlock->__rw_lock); - - if (was_on_queue) - { - __pthread_set_own_extricate_if (self, 0); - return ETIMEDOUT; - } - - /* Eat the outstanding restart() from the signaller */ - suspend (self); - } - } -} -strong_alias (__pthread_rwlock_timedwrlock, pthread_rwlock_timedwrlock) - - -int -__pthread_rwlock_trywrlock (pthread_rwlock_t *rwlock) -{ - int result = EBUSY; - - __pthread_lock (&rwlock->__rw_lock, NULL); - if (rwlock->__rw_readers == 0 && rwlock->__rw_writer == NULL) - { - rwlock->__rw_writer = thread_self (); - result = 0; - } - __pthread_unlock (&rwlock->__rw_lock); - - return result; -} -strong_alias (__pthread_rwlock_trywrlock, pthread_rwlock_trywrlock) - - -int -__pthread_rwlock_unlock (pthread_rwlock_t *rwlock) -{ - pthread_descr torestart; - pthread_descr th; - - __pthread_lock (&rwlock->__rw_lock, NULL); - if (rwlock->__rw_writer != NULL) - { - /* Unlocking a write lock. */ - if (rwlock->__rw_writer != thread_self ()) - { - __pthread_unlock (&rwlock->__rw_lock); - return EPERM; - } - rwlock->__rw_writer = NULL; - - if ((rwlock->__rw_kind == PTHREAD_RWLOCK_PREFER_READER_NP - && !queue_is_empty(&rwlock->__rw_read_waiting)) - || (th = dequeue(&rwlock->__rw_write_waiting)) == NULL) - { - /* Restart all waiting readers. */ - torestart = rwlock->__rw_read_waiting; - rwlock->__rw_read_waiting = NULL; - __pthread_unlock (&rwlock->__rw_lock); - while ((th = dequeue (&torestart)) != NULL) - restart (th); - } - else - { - /* Restart one waiting writer. */ - __pthread_unlock (&rwlock->__rw_lock); - restart (th); - } - } - else - { - /* Unlocking a read lock. */ - if (rwlock->__rw_readers == 0) - { - __pthread_unlock (&rwlock->__rw_lock); - return EPERM; - } - - --rwlock->__rw_readers; - if (rwlock->__rw_readers == 0) - /* Restart one waiting writer, if any. */ - th = dequeue (&rwlock->__rw_write_waiting); - else - th = NULL; - - __pthread_unlock (&rwlock->__rw_lock); - if (th != NULL) - restart (th); - - /* Recursive lock fixup */ - - if (rwlock->__rw_kind == PTHREAD_RWLOCK_PREFER_WRITER_NP) - { - pthread_descr self = thread_self(); - pthread_readlock_info *victim = rwlock_remove_from_list(self, rwlock); - - if (victim != NULL) - { - if (victim->pr_lock_count == 0) - { - victim->pr_next = THREAD_GETMEM (self, p_readlock_free); - THREAD_SETMEM (self, p_readlock_free, victim); - } - } - else - { - int val = THREAD_GETMEM (self, p_untracked_readlock_count); - if (val > 0) - THREAD_SETMEM (self, p_untracked_readlock_count, val - 1); - } - } - } - - return 0; -} -strong_alias (__pthread_rwlock_unlock, pthread_rwlock_unlock) - - - -int -pthread_rwlockattr_init (pthread_rwlockattr_t *attr) -{ - attr->__lockkind = 0; - attr->__pshared = PTHREAD_PROCESS_PRIVATE; - - return 0; -} - - -int -__pthread_rwlockattr_destroy (pthread_rwlockattr_t *attr) -{ - return 0; -} -strong_alias (__pthread_rwlockattr_destroy, pthread_rwlockattr_destroy) - - -int -pthread_rwlockattr_getpshared (const pthread_rwlockattr_t *attr, int *pshared) -{ - *pshared = attr->__pshared; - return 0; -} - - -int -pthread_rwlockattr_setpshared (pthread_rwlockattr_t *attr, int pshared) -{ - if (pshared != PTHREAD_PROCESS_PRIVATE && pshared != PTHREAD_PROCESS_SHARED) - return EINVAL; - - /* For now it is not possible to shared a conditional variable. */ - if (pshared != PTHREAD_PROCESS_PRIVATE) - return ENOSYS; - - attr->__pshared = pshared; - - return 0; -} - - -int -pthread_rwlockattr_getkind_np (const pthread_rwlockattr_t *attr, int *pref) -{ - *pref = attr->__lockkind; - return 0; -} - - -int -pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *attr, int pref) -{ - if (pref != PTHREAD_RWLOCK_PREFER_READER_NP - && pref != PTHREAD_RWLOCK_PREFER_WRITER_NP - && pref != PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP - && pref != PTHREAD_RWLOCK_DEFAULT_NP) - return EINVAL; - - attr->__lockkind = pref; - - return 0; -} diff --git a/linuxthreads/semaphore.c b/linuxthreads/semaphore.c deleted file mode 100644 index 017539e176..0000000000 --- a/linuxthreads/semaphore.c +++ /dev/null @@ -1,307 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Semaphores a la POSIX 1003.1b */ - -#include <errno.h> -#include "pthread.h" -#include "semaphore.h" -#include "internals.h" -#include "spinlock.h" -#include "restart.h" -#include "queue.h" -#include <shlib-compat.h> -#include <not-cancel.h> - -int __new_sem_init(sem_t *sem, int pshared, unsigned int value) -{ - if (value > SEM_VALUE_MAX) { - errno = EINVAL; - return -1; - } - if (pshared) { - errno = ENOSYS; - return -1; - } - __pthread_init_lock(&sem->__sem_lock); - sem->__sem_value = value; - sem->__sem_waiting = NULL; - return 0; -} - -/* Function called by pthread_cancel to remove the thread from - waiting inside __new_sem_wait. */ - -static int new_sem_extricate_func(void *obj, pthread_descr th) -{ - volatile pthread_descr self = thread_self(); - sem_t *sem = obj; - int did_remove = 0; - - __pthread_lock(&sem->__sem_lock, self); - did_remove = remove_from_queue(&sem->__sem_waiting, th); - __pthread_unlock(&sem->__sem_lock); - - return did_remove; -} - -int __new_sem_wait(sem_t * sem) -{ - volatile pthread_descr self = thread_self(); - pthread_extricate_if extr; - int already_canceled = 0; - int spurious_wakeup_count; - - /* Set up extrication interface */ - extr.pu_object = sem; - extr.pu_extricate_func = new_sem_extricate_func; - - __pthread_lock(&sem->__sem_lock, self); - if (sem->__sem_value > 0) { - sem->__sem_value--; - __pthread_unlock(&sem->__sem_lock); - return 0; - } - /* Register extrication interface */ - THREAD_SETMEM(self, p_sem_avail, 0); - __pthread_set_own_extricate_if(self, &extr); - /* Enqueue only if not already cancelled. */ - if (!(THREAD_GETMEM(self, p_canceled) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE)) - enqueue(&sem->__sem_waiting, self); - else - already_canceled = 1; - __pthread_unlock(&sem->__sem_lock); - - if (already_canceled) { - __pthread_set_own_extricate_if(self, 0); - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - } - - /* Wait for sem_post or cancellation, or fall through if already canceled */ - spurious_wakeup_count = 0; - while (1) - { - suspend(self); - if (THREAD_GETMEM(self, p_sem_avail) == 0 - && (THREAD_GETMEM(self, p_woken_by_cancel) == 0 - || THREAD_GETMEM(self, p_cancelstate) != PTHREAD_CANCEL_ENABLE)) - { - /* Count resumes that don't belong to us. */ - spurious_wakeup_count++; - continue; - } - break; - } - __pthread_set_own_extricate_if(self, 0); - - /* Terminate only if the wakeup came from cancellation. */ - /* Otherwise ignore cancellation because we got the semaphore. */ - - if (THREAD_GETMEM(self, p_woken_by_cancel) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE) { - THREAD_SETMEM(self, p_woken_by_cancel, 0); - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - } - /* We got the semaphore */ - return 0; -} - -int __new_sem_trywait(sem_t * sem) -{ - int retval; - - __pthread_lock(&sem->__sem_lock, NULL); - if (sem->__sem_value == 0) { - errno = EAGAIN; - retval = -1; - } else { - sem->__sem_value--; - retval = 0; - } - __pthread_unlock(&sem->__sem_lock); - return retval; -} - -int __new_sem_post(sem_t * sem) -{ - pthread_descr self = thread_self(); - pthread_descr th; - struct pthread_request request; - - if (THREAD_GETMEM(self, p_in_sighandler) == NULL) { - __pthread_lock(&sem->__sem_lock, self); - if (sem->__sem_waiting == NULL) { - if (sem->__sem_value >= SEM_VALUE_MAX) { - /* Overflow */ - errno = ERANGE; - __pthread_unlock(&sem->__sem_lock); - return -1; - } - sem->__sem_value++; - __pthread_unlock(&sem->__sem_lock); - } else { - th = dequeue(&sem->__sem_waiting); - __pthread_unlock(&sem->__sem_lock); - th->p_sem_avail = 1; - WRITE_MEMORY_BARRIER(); - restart(th); - } - } else { - /* If we're in signal handler, delegate post operation to - the thread manager. */ - if (__pthread_manager_request < 0) { - if (__pthread_initialize_manager() < 0) { - errno = EAGAIN; - return -1; - } - } - request.req_kind = REQ_POST; - request.req_args.post = sem; - TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request, - (char *) &request, sizeof(request))); - } - return 0; -} - -int __new_sem_getvalue(sem_t * sem, int * sval) -{ - *sval = sem->__sem_value; - return 0; -} - -int __new_sem_destroy(sem_t * sem) -{ - if (sem->__sem_waiting != NULL) { - __set_errno (EBUSY); - return -1; - } - return 0; -} - -sem_t *sem_open(const char *name, int oflag, ...) -{ - __set_errno (ENOSYS); - return SEM_FAILED; -} - -int sem_close(sem_t *sem) -{ - __set_errno (ENOSYS); - return -1; -} - -int sem_unlink(const char *name) -{ - __set_errno (ENOSYS); - return -1; -} - -int sem_timedwait(sem_t *sem, const struct timespec *abstime) -{ - pthread_descr self = thread_self(); - pthread_extricate_if extr; - int already_canceled = 0; - int spurious_wakeup_count; - - __pthread_lock(&sem->__sem_lock, self); - if (sem->__sem_value > 0) { - --sem->__sem_value; - __pthread_unlock(&sem->__sem_lock); - return 0; - } - - if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) { - /* The standard requires that if the function would block and the - time value is illegal, the function returns with an error. */ - __pthread_unlock(&sem->__sem_lock); - __set_errno (EINVAL); - return -1; - } - - /* Set up extrication interface */ - extr.pu_object = sem; - extr.pu_extricate_func = new_sem_extricate_func; - - /* Register extrication interface */ - THREAD_SETMEM(self, p_sem_avail, 0); - __pthread_set_own_extricate_if(self, &extr); - /* Enqueue only if not already cancelled. */ - if (!(THREAD_GETMEM(self, p_canceled) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE)) - enqueue(&sem->__sem_waiting, self); - else - already_canceled = 1; - __pthread_unlock(&sem->__sem_lock); - - if (already_canceled) { - __pthread_set_own_extricate_if(self, 0); - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - } - - spurious_wakeup_count = 0; - while (1) - { - if (timedsuspend(self, abstime) == 0) { - int was_on_queue; - - /* __pthread_lock will queue back any spurious restarts that - may happen to it. */ - - __pthread_lock(&sem->__sem_lock, self); - was_on_queue = remove_from_queue(&sem->__sem_waiting, self); - __pthread_unlock(&sem->__sem_lock); - - if (was_on_queue) { - __pthread_set_own_extricate_if(self, 0); - __set_errno (ETIMEDOUT); - return -1; - } - - /* Eat the outstanding restart() from the signaller */ - suspend(self); - } - - if (THREAD_GETMEM(self, p_sem_avail) == 0 - && (THREAD_GETMEM(self, p_woken_by_cancel) == 0 - || THREAD_GETMEM(self, p_cancelstate) != PTHREAD_CANCEL_ENABLE)) - { - /* Count resumes that don't belong to us. */ - spurious_wakeup_count++; - continue; - } - break; - } - - __pthread_set_own_extricate_if(self, 0); - - /* Terminate only if the wakeup came from cancellation. */ - /* Otherwise ignore cancellation because we got the semaphore. */ - - if (THREAD_GETMEM(self, p_woken_by_cancel) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE) { - THREAD_SETMEM(self, p_woken_by_cancel, 0); - __pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME); - } - /* We got the semaphore */ - return 0; -} - - -versioned_symbol (libpthread, __new_sem_init, sem_init, GLIBC_2_1); -versioned_symbol (libpthread, __new_sem_wait, sem_wait, GLIBC_2_1); -versioned_symbol (libpthread, __new_sem_trywait, sem_trywait, GLIBC_2_1); -versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1); -versioned_symbol (libpthread, __new_sem_getvalue, sem_getvalue, GLIBC_2_1); -versioned_symbol (libpthread, __new_sem_destroy, sem_destroy, GLIBC_2_1); diff --git a/linuxthreads/semaphore.h b/linuxthreads/semaphore.h deleted file mode 100644 index 8407007d0b..0000000000 --- a/linuxthreads/semaphore.h +++ /dev/null @@ -1,87 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -#ifndef _SEMAPHORE_H -#define _SEMAPHORE_H 1 - -#include <features.h> -#include <sys/types.h> -#ifdef __USE_XOPEN2K -# define __need_timespec -# include <time.h> -#endif - -#ifndef _PTHREAD_DESCR_DEFINED -/* Thread descriptors. Needed for `sem_t' definition. */ -typedef struct _pthread_descr_struct *_pthread_descr; -# define _PTHREAD_DESCR_DEFINED -#endif - -/* System specific semaphore definition. */ -typedef struct -{ - struct _pthread_fastlock __sem_lock; - int __sem_value; - _pthread_descr __sem_waiting; -} sem_t; - - - -/* Value returned if `sem_open' failed. */ -#define SEM_FAILED ((sem_t *) 0) - -/* Maximum value the semaphore can have. */ -#define SEM_VALUE_MAX (2147483647) - - -__BEGIN_DECLS - -/* Initialize semaphore object SEM to VALUE. If PSHARED then share it - with other processes. */ -extern int sem_init (sem_t *__sem, int __pshared, unsigned int __value) __THROW; - -/* Free resources associated with semaphore object SEM. */ -extern int sem_destroy (sem_t *__sem) __THROW; - -/* Open a named semaphore NAME with open flaot OFLAG. */ -extern sem_t *sem_open (__const char *__name, int __oflag, ...) __THROW; - -/* Close descriptor for named semaphore SEM. */ -extern int sem_close (sem_t *__sem) __THROW; - -/* Remove named semaphore NAME. */ -extern int sem_unlink (__const char *__name) __THROW; - -/* Wait for SEM being posted. */ -extern int sem_wait (sem_t *__sem); - -#ifdef __USE_XOPEN2K -/* Similar to `sem_wait' but wait only until ABSTIME. */ -extern int sem_timedwait (sem_t *__restrict __sem, - __const struct timespec *__restrict __abstime); -#endif - -/* Test whether SEM is posted. */ -extern int sem_trywait (sem_t *__sem) __THROW; - -/* Post SEM. */ -extern int sem_post (sem_t *__sem) __THROW; - -/* Get current value of SEM and store it in *SVAL. */ -extern int sem_getvalue (sem_t *__restrict __sem, int *__restrict __sval) - __THROW; - -__END_DECLS - -#endif /* semaphore.h */ diff --git a/linuxthreads/shlib-versions b/linuxthreads/shlib-versions deleted file mode 100644 index 58488ce65c..0000000000 --- a/linuxthreads/shlib-versions +++ /dev/null @@ -1,11 +0,0 @@ -# Xavier Leroy's Linux clone based thread library. -mips.*-.*-linux.* libpthread=0 GLIBC_2.0 GLIBC_2.2 -sparc64-.*-linux.* libpthread=0 GLIBC_2.2 -sh.*-.*-linux.* libpthread=0 GLIBC_2.2 -ia64.*-.*-linux.* libpthread=0 GLIBC_2.2 -hppa.*-.*-linux.* libpthread=0 GLIBC_2.2 -s390x-.*-linux.* libpthread=0 GLIBC_2.2 -cris-.*-linux.* libpthread=0 GLIBC_2.2 -x86_64-.*-linux.* libpthread=0 GLIBC_2.2.5 -powerpc64-.*-linux.* libpthread=0 GLIBC_2.3 -.*-.*-linux.* libpthread=0 diff --git a/linuxthreads/sighandler.c b/linuxthreads/sighandler.c deleted file mode 100644 index 9dd3e228f6..0000000000 --- a/linuxthreads/sighandler.c +++ /dev/null @@ -1,71 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Signal handlers */ - -#include "internals.h" - - -/* The wrapper around user-provided signal handlers */ -void __pthread_sighandler(int signo, SIGCONTEXT ctx) -{ - pthread_descr self; - char * in_sighandler; - self = check_thread_self(); - - /* If we're in a sigwait operation, just record the signal received - and return without calling the user's handler */ - if (THREAD_GETMEM(self, p_sigwaiting)) { - THREAD_SETMEM(self, p_sigwaiting, 0); - THREAD_SETMEM(self, p_signal, signo); - return; - } - /* Record that we're in a signal handler and call the user's - handler function */ - in_sighandler = THREAD_GETMEM(self, p_in_sighandler); - if (in_sighandler == NULL) - THREAD_SETMEM(self, p_in_sighandler, CURRENT_STACK_FRAME); - CALL_SIGHANDLER(__sighandler[signo].old, signo, ctx); - if (in_sighandler == NULL) - THREAD_SETMEM(self, p_in_sighandler, NULL); -} - -/* The same, this time for real-time signals. */ -void __pthread_sighandler_rt(int signo, struct siginfo *si, - struct ucontext *uc) -{ - pthread_descr self; - char * in_sighandler; - self = check_thread_self(); - - /* If we're in a sigwait operation, just record the signal received - and return without calling the user's handler */ - if (THREAD_GETMEM(self, p_sigwaiting)) { - THREAD_SETMEM(self, p_sigwaiting, 0); - THREAD_SETMEM(self, p_signal, signo); - return; - } - /* Record that we're in a signal handler and call the user's - handler function */ - in_sighandler = THREAD_GETMEM(self, p_in_sighandler); - if (in_sighandler == NULL) - THREAD_SETMEM(self, p_in_sighandler, CURRENT_STACK_FRAME); - __sighandler[signo].rt(signo, si, uc); - if (in_sighandler == NULL) - THREAD_SETMEM(self, p_in_sighandler, NULL); -} - - -/* A signal handler that does nothing */ -void __pthread_null_sighandler(int sig) { } diff --git a/linuxthreads/signals.c b/linuxthreads/signals.c deleted file mode 100644 index 50f55995a3..0000000000 --- a/linuxthreads/signals.c +++ /dev/null @@ -1,213 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Handling of signals */ - -#include <errno.h> -#include <signal.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include <ucontext.h> - - -int pthread_sigmask(int how, const sigset_t * newmask, sigset_t * oldmask) -{ - sigset_t mask; - - if (newmask != NULL) { - mask = *newmask; - /* Don't allow __pthread_sig_restart to be unmasked. - Don't allow __pthread_sig_cancel to be masked. */ - switch(how) { - case SIG_SETMASK: - sigaddset(&mask, __pthread_sig_restart); - sigdelset(&mask, __pthread_sig_cancel); - if (__pthread_sig_debug > 0) - sigdelset(&mask, __pthread_sig_debug); - break; - case SIG_BLOCK: - sigdelset(&mask, __pthread_sig_cancel); - if (__pthread_sig_debug > 0) - sigdelset(&mask, __pthread_sig_debug); - break; - case SIG_UNBLOCK: - sigdelset(&mask, __pthread_sig_restart); - break; - } - newmask = &mask; - } - if (sigprocmask(how, newmask, oldmask) == -1) - return errno; - else - return 0; -} - -int pthread_kill(pthread_t thread, int signo) -{ - pthread_handle handle = thread_handle(thread); - int pid; - - __pthread_lock(&handle->h_lock, NULL); - if (invalid_handle(handle, thread)) { - __pthread_unlock(&handle->h_lock); - return ESRCH; - } - pid = handle->h_descr->p_pid; - __pthread_unlock(&handle->h_lock); - if (kill(pid, signo) == -1) - return errno; - else - return 0; -} - -union sighandler __sighandler[NSIG] = - { [1 ... NSIG - 1] = { (arch_sighandler_t) SIG_ERR } }; - -/* The wrapper around sigaction. Install our own signal handler - around the signal. */ -int __pthread_sigaction(int sig, const struct sigaction * act, - struct sigaction * oact) -{ - struct sigaction newact; - struct sigaction *newactp; - __sighandler_t old = SIG_DFL; - - if (sig == __pthread_sig_restart || - sig == __pthread_sig_cancel || - (sig == __pthread_sig_debug && __pthread_sig_debug > 0)) - { - __set_errno (EINVAL); - return -1; - } - if (sig > 0 && sig < NSIG) - old = (__sighandler_t) __sighandler[sig].old; - if (act) - { - newact = *act; - if (act->sa_handler != SIG_IGN && act->sa_handler != SIG_DFL - && sig > 0 && sig < NSIG) - { - if (act->sa_flags & SA_SIGINFO) - newact.sa_handler = (__sighandler_t) __pthread_sighandler_rt; - else - newact.sa_handler = (__sighandler_t) __pthread_sighandler; - if (old == SIG_IGN || old == SIG_DFL || old == SIG_ERR) - __sighandler[sig].old = (arch_sighandler_t) act->sa_handler; - } - newactp = &newact; - } - else - newactp = NULL; - if (__libc_sigaction(sig, newactp, oact) == -1) - { - if (act) - __sighandler[sig].old = (arch_sighandler_t) old; - return -1; - } - if (sig > 0 && sig < NSIG) - { - if (oact != NULL - /* We may have inherited SIG_IGN from the parent, so return the - kernel's idea of the signal handler the first time - through. */ - && old != SIG_ERR) - oact->sa_handler = old; - if (act) - /* For the assignment it does not matter whether it's a normal - or real-time signal. */ - __sighandler[sig].old = (arch_sighandler_t) act->sa_handler; - } - return 0; -} -#ifdef SHARED -strong_alias(__pthread_sigaction, __sigaction) -strong_alias(__pthread_sigaction, sigaction) -#endif - -/* sigwait -- synchronously wait for a signal */ -int __pthread_sigwait(const sigset_t * set, int * sig) -{ - volatile pthread_descr self = thread_self(); - sigset_t mask; - int s; - sigjmp_buf jmpbuf; - struct sigaction sa; - - /* Get ready to block all signals except those in set - and the cancellation signal. - Also check that handlers are installed on all signals in set, - and if not, install our dummy handler. This is conformant to - POSIX: "The effect of sigwait() on the signal actions for the - signals in set is unspecified." */ - sigfillset(&mask); - sigdelset(&mask, __pthread_sig_cancel); - for (s = 1; s < NSIG; s++) { - if (sigismember(set, s) && - s != __pthread_sig_restart && - s != __pthread_sig_cancel && - s != __pthread_sig_debug) { - sigdelset(&mask, s); - if (__sighandler[s].old == (arch_sighandler_t) SIG_ERR || - __sighandler[s].old == (arch_sighandler_t) SIG_DFL || - __sighandler[s].old == (arch_sighandler_t) SIG_IGN) { - sa.sa_handler = __pthread_null_sighandler; - sigfillset(&sa.sa_mask); - sa.sa_flags = 0; - sigaction(s, &sa, NULL); - } - } - } - /* Test for cancellation */ - if (sigsetjmp(jmpbuf, 1) == 0) { - THREAD_SETMEM(self, p_cancel_jmp, &jmpbuf); - if (! (THREAD_GETMEM(self, p_canceled) - && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE)) { - /* Reset the signal count */ - THREAD_SETMEM(self, p_signal, 0); - /* Say we're in sigwait */ - THREAD_SETMEM(self, p_sigwaiting, 1); - /* Unblock the signals and wait for them */ - sigsuspend(&mask); - } - } - THREAD_SETMEM(self, p_cancel_jmp, NULL); - /* The signals are now reblocked. Check for cancellation */ - pthread_testcancel(); - /* We should have self->p_signal != 0 and equal to the signal received */ - *sig = THREAD_GETMEM(self, p_signal); - return 0; -} -#ifdef SHARED -strong_alias (__pthread_sigwait, sigwait) -#endif - -/* Redefine raise() to send signal to calling thread only, - as per POSIX 1003.1c */ -int __pthread_raise (int sig) -{ - int retcode = pthread_kill(pthread_self(), sig); - if (retcode == 0) - return 0; - else { - errno = retcode; - return -1; - } -} -#ifdef SHARED -strong_alias (__pthread_raise, raise) -#endif - -/* This files handles cancellation internally. */ -LIBC_CANCEL_HANDLED (); diff --git a/linuxthreads/specific.c b/linuxthreads/specific.c deleted file mode 100644 index 92eec3d99a..0000000000 --- a/linuxthreads/specific.c +++ /dev/null @@ -1,241 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Thread-specific data */ - -#include <errno.h> -#include <stddef.h> -#include <stdlib.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "restart.h" -#include <bits/libc-lock.h> -#include <not-cancel.h> - -/* Table of keys. */ - -static struct pthread_key_struct pthread_keys[PTHREAD_KEYS_MAX] = - { { 0, NULL } }; - -/* For debugging purposes put the maximum number of keys in a variable. */ -const int __linuxthreads_pthread_keys_max = PTHREAD_KEYS_MAX; -const int __linuxthreads_pthread_key_2ndlevel_size = PTHREAD_KEY_2NDLEVEL_SIZE; - -/* Mutex to protect access to pthread_keys */ - -static pthread_mutex_t pthread_keys_mutex = PTHREAD_MUTEX_INITIALIZER; - -/* Create a new key */ - -int __pthread_key_create(pthread_key_t * key, destr_function destr) -{ - int i; - - pthread_mutex_lock(&pthread_keys_mutex); - for (i = 0; i < PTHREAD_KEYS_MAX; i++) { - if (! pthread_keys[i].in_use) { - /* Mark key in use */ - pthread_keys[i].in_use = 1; - pthread_keys[i].destr = destr; - pthread_mutex_unlock(&pthread_keys_mutex); - *key = i; - return 0; - } - } - pthread_mutex_unlock(&pthread_keys_mutex); - return EAGAIN; -} -strong_alias (__pthread_key_create, pthread_key_create) - -/* Reset deleted key's value to NULL in each live thread. - * NOTE: this executes in the context of the thread manager! */ - -struct pthread_key_delete_helper_args { - /* Damn, we need lexical closures in C! ;) */ - unsigned int idx1st, idx2nd; - pthread_descr self; -}; - -static void pthread_key_delete_helper(void *arg, pthread_descr th) -{ - struct pthread_key_delete_helper_args *args = arg; - unsigned int idx1st = args->idx1st; - unsigned int idx2nd = args->idx2nd; - pthread_descr self = args->self; - - if (self == 0) - self = args->self = thread_self(); - - if (!th->p_terminated) { - /* pthread_exit() may try to free th->p_specific[idx1st] concurrently. */ - __pthread_lock(th->p_lock, self); - if (th->p_specific[idx1st] != NULL) - th->p_specific[idx1st][idx2nd] = NULL; - __pthread_unlock(th->p_lock); - } -} - -/* Delete a key */ -int pthread_key_delete(pthread_key_t key) -{ - pthread_descr self = thread_self(); - - pthread_mutex_lock(&pthread_keys_mutex); - if (key >= PTHREAD_KEYS_MAX || !pthread_keys[key].in_use) { - pthread_mutex_unlock(&pthread_keys_mutex); - return EINVAL; - } - pthread_keys[key].in_use = 0; - pthread_keys[key].destr = NULL; - - /* Set the value of the key to NULL in all running threads, so - that if the key is reallocated later by pthread_key_create, its - associated values will be NULL in all threads. - - If no threads have been created yet, clear it just in the - current thread. */ - - struct pthread_key_delete_helper_args args; - args.idx1st = key / PTHREAD_KEY_2NDLEVEL_SIZE; - args.idx2nd = key % PTHREAD_KEY_2NDLEVEL_SIZE; - if (__pthread_manager_request != -1) - { - struct pthread_request request; - - args.self = 0; - - request.req_thread = self; - request.req_kind = REQ_FOR_EACH_THREAD; - request.req_args.for_each.arg = &args; - request.req_args.for_each.fn = pthread_key_delete_helper; - - TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request, - (char *) &request, sizeof(request))); - suspend(self); - } - else - { - if (self->p_specific[args.idx1st] != NULL) - self->p_specific[args.idx1st][args.idx2nd] = NULL; - } - - pthread_mutex_unlock(&pthread_keys_mutex); - return 0; -} - -/* Set the value of a key */ - -int __pthread_setspecific(pthread_key_t key, const void * pointer) -{ - pthread_descr self = thread_self(); - unsigned int idx1st, idx2nd; - - if (key >= PTHREAD_KEYS_MAX || !pthread_keys[key].in_use) - return EINVAL; - idx1st = key / PTHREAD_KEY_2NDLEVEL_SIZE; - idx2nd = key % PTHREAD_KEY_2NDLEVEL_SIZE; - if (THREAD_GETMEM_NC(self, p_specific[idx1st]) == NULL) { - void *newp = calloc(PTHREAD_KEY_2NDLEVEL_SIZE, sizeof (void *)); - if (newp == NULL) - return ENOMEM; - THREAD_SETMEM_NC(self, p_specific[idx1st], newp); - } - THREAD_GETMEM_NC(self, p_specific[idx1st])[idx2nd] = (void *) pointer; - return 0; -} -strong_alias (__pthread_setspecific, pthread_setspecific) - -/* Get the value of a key */ - -void * __pthread_getspecific(pthread_key_t key) -{ - pthread_descr self = thread_self(); - unsigned int idx1st, idx2nd; - - if (key >= PTHREAD_KEYS_MAX) - return NULL; - idx1st = key / PTHREAD_KEY_2NDLEVEL_SIZE; - idx2nd = key % PTHREAD_KEY_2NDLEVEL_SIZE; - if (THREAD_GETMEM_NC(self, p_specific[idx1st]) == NULL - || !pthread_keys[key].in_use) - return NULL; - return THREAD_GETMEM_NC(self, p_specific[idx1st])[idx2nd]; -} -strong_alias (__pthread_getspecific, pthread_getspecific) - -/* Call the destruction routines on all keys */ - -void __pthread_destroy_specifics() -{ - pthread_descr self = thread_self(); - int i, j, round, found_nonzero; - destr_function destr; - void * data; - - for (round = 0, found_nonzero = 1; - found_nonzero && round < PTHREAD_DESTRUCTOR_ITERATIONS; - round++) { - found_nonzero = 0; - for (i = 0; i < PTHREAD_KEY_1STLEVEL_SIZE; i++) - if (THREAD_GETMEM_NC(self, p_specific[i]) != NULL) - for (j = 0; j < PTHREAD_KEY_2NDLEVEL_SIZE; j++) { - destr = pthread_keys[i * PTHREAD_KEY_2NDLEVEL_SIZE + j].destr; - data = THREAD_GETMEM_NC(self, p_specific[i])[j]; - if (destr != NULL && data != NULL) { - THREAD_GETMEM_NC(self, p_specific[i])[j] = NULL; - destr(data); - found_nonzero = 1; - } - } - } - __pthread_lock(THREAD_GETMEM(self, p_lock), self); - for (i = 0; i < PTHREAD_KEY_1STLEVEL_SIZE; i++) { - if (THREAD_GETMEM_NC(self, p_specific[i]) != NULL) { - free(THREAD_GETMEM_NC(self, p_specific[i])); - THREAD_SETMEM_NC(self, p_specific[i], NULL); - } - } - __pthread_unlock(THREAD_GETMEM(self, p_lock)); -} - -#if !(USE_TLS && HAVE___THREAD) - -/* Thread-specific data for libc. */ - -int -__pthread_internal_tsd_set (int key, const void * pointer) -{ - pthread_descr self = thread_self(); - - THREAD_SETMEM_NC(self, p_libc_specific[key], (void *) pointer); - return 0; -} - -void * -__pthread_internal_tsd_get (int key) -{ - pthread_descr self = thread_self(); - - return THREAD_GETMEM_NC(self, p_libc_specific[key]); -} - -void ** __attribute__ ((__const__)) -__pthread_internal_tsd_address (int key) -{ - pthread_descr self = thread_self(); - return &self->p_libc_specific[key]; -} - -#endif diff --git a/linuxthreads/spinlock.c b/linuxthreads/spinlock.c deleted file mode 100644 index 08fff082ef..0000000000 --- a/linuxthreads/spinlock.c +++ /dev/null @@ -1,720 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1998 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Internal locks */ - -#include <errno.h> -#include <sched.h> -#include <time.h> -#include <stdlib.h> -#include <limits.h> -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "restart.h" - -static void __pthread_acquire(int * spinlock); - -static inline void __pthread_release(int * spinlock) -{ - WRITE_MEMORY_BARRIER(); - *spinlock = __LT_SPINLOCK_INIT; - __asm __volatile ("" : "=m" (*spinlock) : "m" (*spinlock)); -} - - -/* The status field of a spinlock is a pointer whose least significant - bit is a locked flag. - - Thus the field values have the following meanings: - - status == 0: spinlock is free - status == 1: spinlock is taken; no thread is waiting on it - - (status & 1) == 1: spinlock is taken and (status & ~1L) is a - pointer to the first waiting thread; other - waiting threads are linked via the p_nextlock - field. - (status & 1) == 0: same as above, but spinlock is not taken. - - The waiting list is not sorted by priority order. - Actually, we always insert at top of list (sole insertion mode - that can be performed without locking). - For __pthread_unlock, we perform a linear search in the list - to find the highest-priority, oldest waiting thread. - This is safe because there are no concurrent __pthread_unlock - operations -- only the thread that locked the mutex can unlock it. */ - - -void internal_function __pthread_lock(struct _pthread_fastlock * lock, - pthread_descr self) -{ -#if defined HAS_COMPARE_AND_SWAP - long oldstatus, newstatus; - int successful_seizure, spurious_wakeup_count; - int spin_count; -#endif - -#if defined TEST_FOR_COMPARE_AND_SWAP - if (!__pthread_has_cas) -#endif -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - { - __pthread_acquire(&lock->__spinlock); - return; - } -#endif - -#if defined HAS_COMPARE_AND_SWAP - /* First try it without preparation. Maybe it's a completely - uncontested lock. */ - if (lock->__status == 0 && __compare_and_swap (&lock->__status, 0, 1)) - return; - - spurious_wakeup_count = 0; - spin_count = 0; - - /* On SMP, try spinning to get the lock. */ - - if (__pthread_smp_kernel) { - int max_count = lock->__spinlock * 2 + 10; - - if (max_count > MAX_ADAPTIVE_SPIN_COUNT) - max_count = MAX_ADAPTIVE_SPIN_COUNT; - - for (spin_count = 0; spin_count < max_count; spin_count++) { - if (((oldstatus = lock->__status) & 1) == 0) { - if(__compare_and_swap(&lock->__status, oldstatus, oldstatus | 1)) - { - if (spin_count) - lock->__spinlock += (spin_count - lock->__spinlock) / 8; - READ_MEMORY_BARRIER(); - return; - } - } -#ifdef BUSY_WAIT_NOP - BUSY_WAIT_NOP; -#endif - __asm __volatile ("" : "=m" (lock->__status) : "m" (lock->__status)); - } - - lock->__spinlock += (spin_count - lock->__spinlock) / 8; - } - -again: - - /* No luck, try once more or suspend. */ - - do { - oldstatus = lock->__status; - successful_seizure = 0; - - if ((oldstatus & 1) == 0) { - newstatus = oldstatus | 1; - successful_seizure = 1; - } else { - if (self == NULL) - self = thread_self(); - newstatus = (long) self | 1; - } - - if (self != NULL) { - THREAD_SETMEM(self, p_nextlock, (pthread_descr) (oldstatus)); - /* Make sure the store in p_nextlock completes before performing - the compare-and-swap */ - MEMORY_BARRIER(); - } - } while(! __compare_and_swap(&lock->__status, oldstatus, newstatus)); - - /* Suspend with guard against spurious wakeup. - This can happen in pthread_cond_timedwait_relative, when the thread - wakes up due to timeout and is still on the condvar queue, and then - locks the queue to remove itself. At that point it may still be on the - queue, and may be resumed by a condition signal. */ - - if (!successful_seizure) { - for (;;) { - suspend(self); - if (self->p_nextlock != NULL) { - /* Count resumes that don't belong to us. */ - spurious_wakeup_count++; - continue; - } - break; - } - goto again; - } - - /* Put back any resumes we caught that don't belong to us. */ - while (spurious_wakeup_count--) - restart(self); - - READ_MEMORY_BARRIER(); -#endif -} - -int __pthread_unlock(struct _pthread_fastlock * lock) -{ -#if defined HAS_COMPARE_AND_SWAP - long oldstatus; - pthread_descr thr, * ptr, * maxptr; - int maxprio; -#endif - -#if defined TEST_FOR_COMPARE_AND_SWAP - if (!__pthread_has_cas) -#endif -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - { - __pthread_release(&lock->__spinlock); - return 0; - } -#endif - -#if defined HAS_COMPARE_AND_SWAP - WRITE_MEMORY_BARRIER(); - -again: - while ((oldstatus = lock->__status) == 1) { - if (__compare_and_swap_with_release_semantics(&lock->__status, - oldstatus, 0)) - return 0; - } - - /* Find thread in waiting queue with maximal priority */ - ptr = (pthread_descr *) &lock->__status; - thr = (pthread_descr) (oldstatus & ~1L); - maxprio = 0; - maxptr = ptr; - - /* Before we iterate over the wait queue, we need to execute - a read barrier, otherwise we may read stale contents of nodes that may - just have been inserted by other processors. One read barrier is enough to - ensure we have a stable list; we don't need one for each pointer chase - through the list, because we are the owner of the lock; other threads - can only add nodes at the front; if a front node is consistent, - the ones behind it must also be. */ - - READ_MEMORY_BARRIER(); - - while (thr != 0) { - if (thr->p_priority >= maxprio) { - maxptr = ptr; - maxprio = thr->p_priority; - } - ptr = &(thr->p_nextlock); - thr = (pthread_descr)((long)(thr->p_nextlock) & ~1L); - } - - /* Remove max prio thread from waiting list. */ - if (maxptr == (pthread_descr *) &lock->__status) { - /* If max prio thread is at head, remove it with compare-and-swap - to guard against concurrent lock operation. This removal - also has the side effect of marking the lock as released - because the new status comes from thr->p_nextlock whose - least significant bit is clear. */ - thr = (pthread_descr) (oldstatus & ~1L); - if (! __compare_and_swap_with_release_semantics - (&lock->__status, oldstatus, (long)(thr->p_nextlock) & ~1L)) - goto again; - } else { - /* No risk of concurrent access, remove max prio thread normally. - But in this case we must also flip the least significant bit - of the status to mark the lock as released. */ - thr = (pthread_descr)((long)*maxptr & ~1L); - *maxptr = thr->p_nextlock; - - /* Ensure deletion from linked list completes before we - release the lock. */ - WRITE_MEMORY_BARRIER(); - - do { - oldstatus = lock->__status; - } while (!__compare_and_swap_with_release_semantics(&lock->__status, - oldstatus, oldstatus & ~1L)); - } - - /* Wake up the selected waiting thread. Woken thread can check - its own p_nextlock field for NULL to detect that it has been removed. No - barrier is needed here, since restart() and suspend() take - care of memory synchronization. */ - - thr->p_nextlock = NULL; - restart(thr); - - return 0; -#endif -} - -/* - * Alternate fastlocks do not queue threads directly. Instead, they queue - * these wait queue node structures. When a timed wait wakes up due to - * a timeout, it can leave its wait node in the queue (because there - * is no safe way to remove from the quue). Some other thread will - * deallocate the abandoned node. - */ - - -struct wait_node { - struct wait_node *next; /* Next node in null terminated linked list */ - pthread_descr thr; /* The thread waiting with this node */ - int abandoned; /* Atomic flag */ -}; - -static long wait_node_free_list; -static int wait_node_free_list_spinlock; - -/* Allocate a new node from the head of the free list using an atomic - operation, or else using malloc if that list is empty. A fundamental - assumption here is that we can safely access wait_node_free_list->next. - That's because we never free nodes once we allocate them, so a pointer to a - node remains valid indefinitely. */ - -static struct wait_node *wait_node_alloc(void) -{ - struct wait_node *new_node = 0; - - __pthread_acquire(&wait_node_free_list_spinlock); - if (wait_node_free_list != 0) { - new_node = (struct wait_node *) wait_node_free_list; - wait_node_free_list = (long) new_node->next; - } - WRITE_MEMORY_BARRIER(); - __pthread_release(&wait_node_free_list_spinlock); - - if (new_node == 0) - return malloc(sizeof *wait_node_alloc()); - - return new_node; -} - -/* Return a node to the head of the free list using an atomic - operation. */ - -static void wait_node_free(struct wait_node *wn) -{ - __pthread_acquire(&wait_node_free_list_spinlock); - wn->next = (struct wait_node *) wait_node_free_list; - wait_node_free_list = (long) wn; - WRITE_MEMORY_BARRIER(); - __pthread_release(&wait_node_free_list_spinlock); - return; -} - -#if defined HAS_COMPARE_AND_SWAP - -/* Remove a wait node from the specified queue. It is assumed - that the removal takes place concurrently with only atomic insertions at the - head of the queue. */ - -static void wait_node_dequeue(struct wait_node **pp_head, - struct wait_node **pp_node, - struct wait_node *p_node) -{ - /* If the node is being deleted from the head of the - list, it must be deleted using atomic compare-and-swap. - Otherwise it can be deleted in the straightforward way. */ - - if (pp_node == pp_head) { - /* We don't need a read barrier between these next two loads, - because it is assumed that the caller has already ensured - the stability of *p_node with respect to p_node. */ - - long oldvalue = (long) p_node; - long newvalue = (long) p_node->next; - - if (__compare_and_swap((long *) pp_node, oldvalue, newvalue)) - return; - - /* Oops! Compare and swap failed, which means the node is - no longer first. We delete it using the ordinary method. But we don't - know the identity of the node which now holds the pointer to the node - being deleted, so we must search from the beginning. */ - - for (pp_node = pp_head; p_node != *pp_node; ) { - pp_node = &(*pp_node)->next; - READ_MEMORY_BARRIER(); /* Stabilize *pp_node for next iteration. */ - } - } - - *pp_node = p_node->next; - return; -} - -#endif - -void __pthread_alt_lock(struct _pthread_fastlock * lock, - pthread_descr self) -{ -#if defined HAS_COMPARE_AND_SWAP - long oldstatus, newstatus; -#endif - struct wait_node wait_node; - -#if defined TEST_FOR_COMPARE_AND_SWAP - if (!__pthread_has_cas) -#endif -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - { - int suspend_needed = 0; - __pthread_acquire(&lock->__spinlock); - - if (lock->__status == 0) - lock->__status = 1; - else { - if (self == NULL) - self = thread_self(); - - wait_node.abandoned = 0; - wait_node.next = (struct wait_node *) lock->__status; - wait_node.thr = self; - lock->__status = (long) &wait_node; - suspend_needed = 1; - } - - __pthread_release(&lock->__spinlock); - - if (suspend_needed) - suspend (self); - return; - } -#endif - -#if defined HAS_COMPARE_AND_SWAP - do { - oldstatus = lock->__status; - if (oldstatus == 0) { - newstatus = 1; - } else { - if (self == NULL) - self = thread_self(); - wait_node.thr = self; - newstatus = (long) &wait_node; - } - wait_node.abandoned = 0; - wait_node.next = (struct wait_node *) oldstatus; - /* Make sure the store in wait_node.next completes before performing - the compare-and-swap */ - MEMORY_BARRIER(); - } while(! __compare_and_swap(&lock->__status, oldstatus, newstatus)); - - /* Suspend. Note that unlike in __pthread_lock, we don't worry - here about spurious wakeup. That's because this lock is not - used in situations where that can happen; the restart can - only come from the previous lock owner. */ - - if (oldstatus != 0) - suspend(self); - - READ_MEMORY_BARRIER(); -#endif -} - -/* Timed-out lock operation; returns 0 to indicate timeout. */ - -int __pthread_alt_timedlock(struct _pthread_fastlock * lock, - pthread_descr self, const struct timespec *abstime) -{ - long oldstatus = 0; -#if defined HAS_COMPARE_AND_SWAP - long newstatus; -#endif - struct wait_node *p_wait_node = wait_node_alloc(); - - /* Out of memory, just give up and do ordinary lock. */ - if (p_wait_node == 0) { - __pthread_alt_lock(lock, self); - return 1; - } - -#if defined TEST_FOR_COMPARE_AND_SWAP - if (!__pthread_has_cas) -#endif -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - { - __pthread_acquire(&lock->__spinlock); - - if (lock->__status == 0) - lock->__status = 1; - else { - if (self == NULL) - self = thread_self(); - - p_wait_node->abandoned = 0; - p_wait_node->next = (struct wait_node *) lock->__status; - p_wait_node->thr = self; - lock->__status = (long) p_wait_node; - oldstatus = 1; /* force suspend */ - } - - __pthread_release(&lock->__spinlock); - goto suspend; - } -#endif - -#if defined HAS_COMPARE_AND_SWAP - do { - oldstatus = lock->__status; - if (oldstatus == 0) { - newstatus = 1; - } else { - if (self == NULL) - self = thread_self(); - p_wait_node->thr = self; - newstatus = (long) p_wait_node; - } - p_wait_node->abandoned = 0; - p_wait_node->next = (struct wait_node *) oldstatus; - /* Make sure the store in wait_node.next completes before performing - the compare-and-swap */ - MEMORY_BARRIER(); - } while(! __compare_and_swap(&lock->__status, oldstatus, newstatus)); -#endif - -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - suspend: -#endif - - /* If we did not get the lock, do a timed suspend. If we wake up due - to a timeout, then there is a race; the old lock owner may try - to remove us from the queue. This race is resolved by us and the owner - doing an atomic testandset() to change the state of the wait node from 0 - to 1. If we succeed, then it's a timeout and we abandon the node in the - queue. If we fail, it means the owner gave us the lock. */ - - if (oldstatus != 0) { - if (timedsuspend(self, abstime) == 0) { - if (!testandset(&p_wait_node->abandoned)) - return 0; /* Timeout! */ - - /* Eat oustanding resume from owner, otherwise wait_node_free() below - will race with owner's wait_node_dequeue(). */ - suspend(self); - } - } - - wait_node_free(p_wait_node); - - READ_MEMORY_BARRIER(); - - return 1; /* Got the lock! */ -} - -void __pthread_alt_unlock(struct _pthread_fastlock *lock) -{ - struct wait_node *p_node, **pp_node, *p_max_prio, **pp_max_prio; - struct wait_node ** const pp_head = (struct wait_node **) &lock->__status; - int maxprio; - - WRITE_MEMORY_BARRIER(); - -#if defined TEST_FOR_COMPARE_AND_SWAP - if (!__pthread_has_cas) -#endif -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - { - __pthread_acquire(&lock->__spinlock); - } -#endif - - while (1) { - - /* If no threads are waiting for this lock, try to just - atomically release it. */ -#if defined TEST_FOR_COMPARE_AND_SWAP - if (!__pthread_has_cas) -#endif -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - { - if (lock->__status == 0 || lock->__status == 1) { - lock->__status = 0; - break; - } - } -#endif - -#if defined TEST_FOR_COMPARE_AND_SWAP - else -#endif - -#if defined HAS_COMPARE_AND_SWAP - { - long oldstatus = lock->__status; - if (oldstatus == 0 || oldstatus == 1) { - if (__compare_and_swap_with_release_semantics (&lock->__status, oldstatus, 0)) - break; - else - continue; - } - } -#endif - - /* Process the entire queue of wait nodes. Remove all abandoned - wait nodes and put them into the global free queue, and - remember the one unabandoned node which refers to the thread - having the highest priority. */ - - pp_max_prio = pp_node = pp_head; - p_max_prio = p_node = *pp_head; - maxprio = INT_MIN; - - READ_MEMORY_BARRIER(); /* Prevent access to stale data through p_node */ - - while (p_node != (struct wait_node *) 1) { - int prio; - - if (p_node->abandoned) { - /* Remove abandoned node. */ -#if defined TEST_FOR_COMPARE_AND_SWAP - if (!__pthread_has_cas) -#endif -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - *pp_node = p_node->next; -#endif -#if defined TEST_FOR_COMPARE_AND_SWAP - else -#endif -#if defined HAS_COMPARE_AND_SWAP - wait_node_dequeue(pp_head, pp_node, p_node); -#endif - wait_node_free(p_node); - /* Note that the next assignment may take us to the beginning - of the queue, to newly inserted nodes, if pp_node == pp_head. - In that case we need a memory barrier to stabilize the first of - these new nodes. */ - p_node = *pp_node; - if (pp_node == pp_head) - READ_MEMORY_BARRIER(); /* No stale reads through p_node */ - continue; - } else if ((prio = p_node->thr->p_priority) >= maxprio) { - /* Otherwise remember it if its thread has a higher or equal priority - compared to that of any node seen thus far. */ - maxprio = prio; - pp_max_prio = pp_node; - p_max_prio = p_node; - } - - /* This canno6 jump backward in the list, so no further read - barrier is needed. */ - pp_node = &p_node->next; - p_node = *pp_node; - } - - /* If all threads abandoned, go back to top */ - if (maxprio == INT_MIN) - continue; - - ASSERT (p_max_prio != (struct wait_node *) 1); - - /* Now we want to to remove the max priority thread's wait node from - the list. Before we can do this, we must atomically try to change the - node's abandon state from zero to nonzero. If we succeed, that means we - have the node that we will wake up. If we failed, then it means the - thread timed out and abandoned the node in which case we repeat the - whole unlock operation. */ - - if (!testandset(&p_max_prio->abandoned)) { -#if defined TEST_FOR_COMPARE_AND_SWAP - if (!__pthread_has_cas) -#endif -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - *pp_max_prio = p_max_prio->next; -#endif -#if defined TEST_FOR_COMPARE_AND_SWAP - else -#endif -#if defined HAS_COMPARE_AND_SWAP - wait_node_dequeue(pp_head, pp_max_prio, p_max_prio); -#endif - restart(p_max_prio->thr); - break; - } - } - -#if defined TEST_FOR_COMPARE_AND_SWAP - if (!__pthread_has_cas) -#endif -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - { - __pthread_release(&lock->__spinlock); - } -#endif -} - - -/* Compare-and-swap emulation with a spinlock */ - -#ifdef TEST_FOR_COMPARE_AND_SWAP -int __pthread_has_cas = 0; -#endif - -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - -int __pthread_compare_and_swap(long * ptr, long oldval, long newval, - int * spinlock) -{ - int res; - - __pthread_acquire(spinlock); - - if (*ptr == oldval) { - *ptr = newval; res = 1; - } else { - res = 0; - } - - __pthread_release(spinlock); - - return res; -} - -#endif - -/* The retry strategy is as follows: - - We test and set the spinlock MAX_SPIN_COUNT times, calling - sched_yield() each time. This gives ample opportunity for other - threads with priority >= our priority to make progress and - release the spinlock. - - If a thread with priority < our priority owns the spinlock, - calling sched_yield() repeatedly is useless, since we're preventing - the owning thread from making progress and releasing the spinlock. - So, after MAX_SPIN_LOCK attemps, we suspend the calling thread - using nanosleep(). This again should give time to the owning thread - for releasing the spinlock. - Notice that the nanosleep() interval must not be too small, - since the kernel does busy-waiting for short intervals in a realtime - process (!). The smallest duration that guarantees thread - suspension is currently 2ms. - - When nanosleep() returns, we try again, doing MAX_SPIN_COUNT - sched_yield(), then sleeping again if needed. */ - -static void __pthread_acquire(int * spinlock) -{ - int cnt = 0; - struct timespec tm; - - READ_MEMORY_BARRIER(); - - while (testandset(spinlock)) { - if (cnt < MAX_SPIN_COUNT) { - sched_yield(); - cnt++; - } else { - tm.tv_sec = 0; - tm.tv_nsec = SPIN_SLEEP_DURATION; - nanosleep(&tm, NULL); - cnt = 0; - } - } -} diff --git a/linuxthreads/spinlock.h b/linuxthreads/spinlock.h deleted file mode 100644 index ff96fc3360..0000000000 --- a/linuxthreads/spinlock.h +++ /dev/null @@ -1,218 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1998 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -#include <bits/initspin.h> - - -/* There are 2 compare and swap synchronization primitives with - different semantics: - - 1. compare_and_swap, which has acquire semantics (i.e. it - completes befor subsequent writes.) - 2. compare_and_swap_with_release_semantics, which has release - semantics (it completes after previous writes.) - - For those platforms on which they are the same. HAS_COMPARE_AND_SWAP - should be defined. For those platforms on which they are different, - HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS has to be defined. */ - -#ifndef HAS_COMPARE_AND_SWAP -#ifdef HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS -#define HAS_COMPARE_AND_SWAP -#endif -#endif - -#if defined(TEST_FOR_COMPARE_AND_SWAP) - -extern int __pthread_has_cas; -extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval, - int * spinlock); - -static inline int compare_and_swap(long * ptr, long oldval, long newval, - int * spinlock) -{ - if (__builtin_expect (__pthread_has_cas, 1)) - return __compare_and_swap(ptr, oldval, newval); - else - return __pthread_compare_and_swap(ptr, oldval, newval, spinlock); -} - -#elif defined(HAS_COMPARE_AND_SWAP) - -#ifdef IMPLEMENT_TAS_WITH_CAS -#define testandset(p) !__compare_and_swap((long int *) p, 0, 1) -#endif - -#ifdef HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS - -static inline int -compare_and_swap_with_release_semantics (long * ptr, long oldval, - long newval, int * spinlock) -{ - return __compare_and_swap_with_release_semantics (ptr, oldval, - newval); -} - -#endif - -static inline int compare_and_swap(long * ptr, long oldval, long newval, - int * spinlock) -{ - return __compare_and_swap(ptr, oldval, newval); -} - -#else - -extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval, - int * spinlock); - -static inline int compare_and_swap(long * ptr, long oldval, long newval, - int * spinlock) -{ - return __pthread_compare_and_swap(ptr, oldval, newval, spinlock); -} - -#endif - -#ifndef HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS -#define compare_and_swap_with_release_semantics compare_and_swap -#define __compare_and_swap_with_release_semantics __compare_and_swap -#endif - -/* Internal locks */ - -extern void internal_function __pthread_lock(struct _pthread_fastlock * lock, - pthread_descr self); -extern int __pthread_unlock(struct _pthread_fastlock *lock); - -static inline void __pthread_init_lock(struct _pthread_fastlock * lock) -{ - lock->__status = 0; - lock->__spinlock = __LT_SPINLOCK_INIT; -} - -static inline int __pthread_trylock (struct _pthread_fastlock * lock) -{ -#if defined TEST_FOR_COMPARE_AND_SWAP - if (!__pthread_has_cas) -#endif -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - { - return (testandset(&lock->__spinlock) ? EBUSY : 0); - } -#endif - -#if defined HAS_COMPARE_AND_SWAP - do { - if (lock->__status != 0) return EBUSY; - } while(! __compare_and_swap(&lock->__status, 0, 1)); - return 0; -#endif -} - -/* Variation of internal lock used for pthread_mutex_t, supporting - timed-out waits. Warning: do not mix these operations with the above ones - over the same lock object! */ - -extern void __pthread_alt_lock(struct _pthread_fastlock * lock, - pthread_descr self); - -extern int __pthread_alt_timedlock(struct _pthread_fastlock * lock, - pthread_descr self, const struct timespec *abstime); - -extern void __pthread_alt_unlock(struct _pthread_fastlock *lock); - -static inline void __pthread_alt_init_lock(struct _pthread_fastlock * lock) -{ - lock->__status = 0; - lock->__spinlock = __LT_SPINLOCK_INIT; -} - -static inline int __pthread_alt_trylock (struct _pthread_fastlock * lock) -{ -#if defined TEST_FOR_COMPARE_AND_SWAP - if (!__pthread_has_cas) -#endif -#if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP - { - int res = EBUSY; - - if (testandset(&lock->__spinlock) == 0) - { - if (lock->__status == 0) - { - lock->__status = 1; - WRITE_MEMORY_BARRIER(); - res = 0; - } - lock->__spinlock = __LT_SPINLOCK_INIT; - } - return res; - } -#endif - -#if defined HAS_COMPARE_AND_SWAP - do { - if (lock->__status != 0) return EBUSY; - } while(! compare_and_swap(&lock->__status, 0, 1, &lock->__spinlock)); - return 0; -#endif -} - -/* Operations on pthread_atomic, which is defined in internals.h */ - -static inline long atomic_increment(struct pthread_atomic *pa) -{ - long oldval; - - do { - oldval = pa->p_count; - } while (!compare_and_swap(&pa->p_count, oldval, oldval + 1, &pa->p_spinlock)); - - return oldval; -} - - -static inline long atomic_decrement(struct pthread_atomic *pa) -{ - long oldval; - - do { - oldval = pa->p_count; - } while (!compare_and_swap(&pa->p_count, oldval, oldval - 1, &pa->p_spinlock)); - - return oldval; -} - - -static inline __attribute__((always_inline)) void -__pthread_set_own_extricate_if (pthread_descr self, pthread_extricate_if *peif) -{ - /* Only store a non-null peif if the thread has cancellation enabled. - Otherwise pthread_cancel will unconditionally call the extricate handler, - and restart the thread giving rise to forbidden spurious wakeups. */ - if (peif == NULL - || THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE) - { - /* If we are removing the extricate interface, we need to synchronize - against pthread_cancel so that it does not continue with a pointer - to a deallocated pthread_extricate_if struct! The thread lock - is (ab)used for this synchronization purpose. */ - if (peif == NULL) - __pthread_lock (THREAD_GETMEM(self, p_lock), self); - THREAD_SETMEM(self, p_extricate, peif); - if (peif == NULL) - __pthread_unlock (THREAD_GETMEM(self, p_lock)); - } -} diff --git a/linuxthreads/sysdeps/alpha/elf/pt-initfini.c b/linuxthreads/sysdeps/alpha/elf/pt-initfini.c deleted file mode 100644 index ee25582101..0000000000 --- a/linuxthreads/sysdeps/alpha/elf/pt-initfini.c +++ /dev/null @@ -1,90 +0,0 @@ -/* Special .init and .fini section support for Alpha. Linuxthreads version. - Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* This file is compiled into assembly code which is then munged by a sed - script into two files: crti.s and crtn.s. - - * crti.s puts a function prologue at the beginning of the .init and .fini - sections and defines global symbols for those addresses, so they can be - called as functions. - - * crtn.s puts the corresponding function epilogues in the .init and .fini - sections. - - This differs from what would be generated by the generic code in that - we save and restore the GP within the function. In order for linker - relaxation to work, the value in the GP register on exit from a function - must be valid for the function entry point. Normally, a function is - contained within one object file and this is not an issue, provided - that the function reloads the gp after making any function calls. - However, _init and _fini are constructed from pieces of many object - files, all of which may have different GP values. So we must reload - the GP value from crti.o in crtn.o. */ - -__asm__ (" \n\ -#include \"defs.h\" \n\ - \n\ -/*@HEADER_ENDS*/ \n\ - \n\ -/*@_init_PROLOG_BEGINS*/ \n\ - .section .init, \"ax\", @progbits \n\ - .globl _init \n\ - .type _init,@function \n\ - .usepv _init,std \n\ -_init: \n\ - ldgp $29, 0($27) \n\ - subq $30, 16, $30 \n\ - stq $26, 0($30) \n\ - stq $29, 8($30) \n\ - jsr $26, __pthread_initialize_minimal \n\ - ldq $29, 8($30) \n\ - .align 3 \n\ -/*@_init_PROLOG_ENDS*/ \n\ - \n\ -/*@_init_EPILOG_BEGINS*/ \n\ - .section .init, \"ax\", @progbits \n\ - ldq $26, 0($30) \n\ - ldq $29, 8($30) \n\ - addq $30, 16, $30 \n\ - ret \n\ -/*@_init_EPILOG_ENDS*/ \n\ - \n\ -/*@_fini_PROLOG_BEGINS*/ \n\ - .section .fini, \"ax\", @progbits \n\ - .globl _fini \n\ - .type _fini,@function \n\ - .usepv _fini,std \n\ -_fini: \n\ - ldgp $29, 0($27) \n\ - subq $30, 16, $30 \n\ - stq $26, 0($30) \n\ - stq $29, 8($30) \n\ - .align 3 \n\ -/*@_fini_PROLOG_ENDS*/ \n\ - \n\ -/*@_fini_EPILOG_BEGINS*/ \n\ - .section .fini, \"ax\", @progbits \n\ - ldq $26, 0($30) \n\ - ldq $29, 8($30) \n\ - addq $30, 16, $30 \n\ - ret \n\ -/*@_fini_EPILOG_ENDS*/ \n\ - \n\ -/*@TRAILER_BEGINS*/ \n\ -"); diff --git a/linuxthreads/sysdeps/alpha/pspinlock.c b/linuxthreads/sysdeps/alpha/pspinlock.c deleted file mode 100644 index 79b7836293..0000000000 --- a/linuxthreads/sysdeps/alpha/pspinlock.c +++ /dev/null @@ -1,110 +0,0 @@ -/* POSIX spinlock implementation. Alpha version. - Copyright (C) 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - - -/* This implementation is similar to the one used in the Linux kernel. - But the kernel is byte instructions for the memory access. This is - faster but unusable here. The problem is that only 128 - threads/processes could use the spinlock at the same time. If (by - a design error in the program) a thread/process would hold the - spinlock for a time long enough to accumulate 128 waiting - processes, the next one will find a positive value in the spinlock - and assume it is unlocked. We cannot accept that. */ - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - unsigned int tmp; - asm volatile - ("1: ldl_l %0,%1\n" - " blbs %0,2f\n" - " or %0,1,%0\n" - " stl_c %0,%1\n" - " beq %0,2f\n" - " mb\n" - ".subsection 2\n" - "2: ldl %0,%1\n" - " blbs %0,2b\n" - " br 1b\n" - ".previous" - : "=r" (tmp), "=m" (lock) - : "m" (lock)); - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - unsigned long int oldval; - unsigned long int temp; - - asm volatile - ("1: ldl_l %0,%1\n" - " and %0,%3,%2\n" - " bne %2,2f\n" - " xor %0,%3,%0\n" - " stl_c %0,%1\n" - " beq %0,3f\n" - " mb\n" - "2:\n" - ".subsection 2\n" - "3: br 1b\n" - ".previous" - : "=&r" (temp), "=m" (*lock), "=&r" (oldval) - : "Ir" (1UL), "m" (*lock)); - - return oldval == 0 ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - asm volatile ("mb"); - return *lock = 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/alpha/pt-machine.h b/linuxthreads/sysdeps/alpha/pt-machine.h deleted file mode 100644 index 853ac6f04a..0000000000 --- a/linuxthreads/sysdeps/alpha/pt-machine.h +++ /dev/null @@ -1,128 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - Alpha version. - Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson <rth@tamu.edu>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -#ifdef __linux__ -# include <asm/pal.h> -#else -# include <machine/pal.h> -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char *stack_pointer __asm__("$30"); - - -/* Memory barrier; default is to do nothing */ -#define MEMORY_BARRIER() __asm__ __volatile__("mb" : : : "memory") -/* Write barrier. */ -#define WRITE_MEMORY_BARRIER() __asm__ __volatile__("wmb" : : : "memory") - - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - long int ret, temp; - - __asm__ __volatile__( - "/* Inline spinlock test & set */\n" - "1:\t" - "ldl_l %0,%3\n\t" - "bne %0,2f\n\t" - "or $31,1,%1\n\t" - "stl_c %1,%2\n\t" - "beq %1,1b\n" - "2:\tmb\n" - "/* End spinlock test & set */" - : "=&r"(ret), "=&r"(temp), "=m"(*spinlock) - : "m"(*spinlock) - : "memory"); - - return ret; -} - - -/* Begin allocating thread stacks at this address. Default is to allocate - them just below the initial program stack. */ -#define THREAD_STACK_START_ADDRESS 0x40000000000 - - -/* Return the thread descriptor for the current thread. */ -#define THREAD_SELF \ -({ \ - register pthread_descr __self __asm__("$0"); \ - __asm__ ("call_pal %1" : "=r"(__self) : "i"(PAL_rduniq)); \ - __self; \ -}) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) \ -{ \ - register pthread_descr __self __asm__("$16") = (descr); \ - __asm__ __volatile__ ("call_pal %1" : : "r"(__self), "i"(PAL_wruniq)); \ -} - - -/* Compare-and-swap for semaphores. */ - -#define HAS_COMPARE_AND_SWAP -PT_EI int -__compare_and_swap (long int *p, long int oldval, long int newval) -{ - long int ret; - - __asm__ __volatile__ ( - "/* Inline compare & swap */\n" - "1:\t" - "ldq_l %0,%4\n\t" - "cmpeq %0,%2,%0\n\t" - "beq %0,2f\n\t" - "mov %3,%0\n\t" - "stq_c %0,%1\n\t" - "beq %0,1b\n\t" - "2:\tmb\n" - "/* End compare & swap */" - : "=&r"(ret), "=m"(*p) - : "r"(oldval), "r"(newval), "m"(*p) - : "memory"); - - return ret; -} - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 32*1024*1024 - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/alpha/tls.h b/linuxthreads/sysdeps/alpha/tls.h deleted file mode 100644 index 3eb9438ce7..0000000000 --- a/linuxthreads/sysdeps/alpha/tls.h +++ /dev/null @@ -1,134 +0,0 @@ -/* Definitions for thread-local data handling. linuxthreads/Alpha version. - Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _TLS_H -#define _TLS_H - -#ifndef __ASSEMBLER__ - -# include <pt-machine.h> -# include <stdbool.h> -# include <stddef.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - struct - { - void *val; - bool is_static; - } pointer; -} dtv_t; - - -typedef struct -{ - dtv_t *dtv; - - /* Reserved for the thread implementation. Unused in LinuxThreads. */ - void *private; -} tcbhead_t; -#endif - - -#ifdef HAVE_TLS_SUPPORT - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -# ifndef __ASSEMBLER__ -/* Get system call information. */ -# include <sysdep.h> - -/* This is the size of the initial TCB. */ -# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) - -/* This is the size of the TCB. */ -# define TLS_TCB_SIZE sizeof (tcbhead_t) - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (tcbhead_t) - -/* This is the size we need before TCB. */ -# define TLS_PRE_TCB_SIZE sizeof (struct _pthread_descr_struct) - -/* The DTV is allocated at the TP; the TCB is placed elsewhere. */ -# define TLS_DTV_AT_TP 1 - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(TCBP, DTVP) \ - (((tcbhead_t *) (TCBP))->dtv = (DTVP) + 1) - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(DTV) \ - (((tcbhead_t *)__builtin_thread_pointer ())->dtv = (DTV)) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(TCBP) \ - (((tcbhead_t *) (TCBP))->dtv) - -/* Code to initially initialize the thread pointer. This might need - special attention since 'errno' is not yet available and if the - operation can cause a failure 'errno' must not be touched. */ -# define TLS_INIT_TP(TCBP, SECONDCALL) \ - (__builtin_set_thread_pointer (TCBP), 0) - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - (((tcbhead_t *)__builtin_thread_pointer ())->dtv) - -/* Return the thread descriptor for the current thread. */ -# undef THREAD_SELF -# define THREAD_SELF \ - ((pthread_descr)__builtin_thread_pointer () - 1) - -# undef INIT_THREAD_SELF -# define INIT_THREAD_SELF(DESCR, NR) \ - __builtin_set_thread_pointer ((struct _pthread_descr_struct *)(DESCR) + 1) - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -/* ??? Generic bits of LinuxThreads may call these macros with - DESCR set to NULL. We are expected to be able to reference - the "current" value. - - In our case, we'd really prefer to use DESCR, since lots of - PAL_code calls would be expensive. We can only trust that - the compiler does its job and unifies the multiple - __builtin_thread_pointer instances. */ - -#define THREAD_GETMEM(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_GETMEM_NC(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_SETMEM(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) -#define THREAD_SETMEM_NC(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) - -# endif /* HAVE_TLS_SUPPORT */ -#endif /* __ASSEMBLER__ */ - -#endif /* tls.h */ diff --git a/linuxthreads/sysdeps/cris/pspinlock.c b/linuxthreads/sysdeps/cris/pspinlock.c deleted file mode 100644 index 402e838c00..0000000000 --- a/linuxthreads/sysdeps/cris/pspinlock.c +++ /dev/null @@ -1,72 +0,0 @@ -/* POSIX spinlock implementation. CRIS version. - Copyright (C) 2000, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - -/* FIXME: These are just dummies. I don't know why or if they're needed; - configury should default to these definitions. We just follow the - crowd here. */ - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - while (testandset (lock) != 0) - ; - - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - return testandset (lock) != 0 ? EBUSY : 0; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - return *lock = 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - return *lock = 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/cris/pt-machine.h b/linuxthreads/sysdeps/cris/pt-machine.h deleted file mode 100644 index 431da7101d..0000000000 --- a/linuxthreads/sysdeps/cris/pt-machine.h +++ /dev/null @@ -1,58 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - CRIS version. - Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -PT_EI long int -testandset (int *spinlock) -{ - register unsigned long int ret; - - /* Note the use of a dummy output of *spinlock to expose the write. The - memory barrier is to stop *other* writes being moved past this code. */ - __asm__ __volatile__("clearf\n" - "0:\n\t" - "movu.b [%2],%0\n\t" - "ax\n\t" - "move.b %3,[%2]\n\t" - "bwf 0b\n\t" - "clearf" - : "=&r" (ret), "=m" (*spinlock) - : "r" (spinlock), "r" ((int) 1) - : "memory"); - return ret; -} - - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. - I don't trust register variables, so let's do this the safe way. */ -#define CURRENT_STACK_FRAME \ - ({ char *sp; __asm__ ("move.d $sp,%0" : "=rm" (sp)); sp; }) - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/hppa/pspinlock.c b/linuxthreads/sysdeps/hppa/pspinlock.c deleted file mode 100644 index 7f481fa4b6..0000000000 --- a/linuxthreads/sysdeps/hppa/pspinlock.c +++ /dev/null @@ -1,81 +0,0 @@ -/* POSIX spinlock implementation. hppa version. - Copyright (C) 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - unsigned int val; - - do - asm volatile ("ldcw %1,%0" - : "=r" (val), "=m" (*lock) - : "m" (*lock)); - while (!val); - - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - unsigned int val; - - asm volatile ("ldcw %1,%0" - : "=r" (val), "=m" (*lock) - : "m" (*lock)); - - return val ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - *lock = 1; - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 1; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/hppa/pt-machine.h b/linuxthreads/sysdeps/hppa/pt-machine.h deleted file mode 100644 index abc25c4ca4..0000000000 --- a/linuxthreads/sysdeps/hppa/pt-machine.h +++ /dev/null @@ -1,62 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - hppa version. - Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson <rth@tamu.edu>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#include <bits/initspin.h> - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("%r30"); - - -/* The hppa only has one atomic read and modify memory operation, - load and clear, so hppa spinlocks must use zero to signify that - someone is holding the lock. */ - -#define xstr(s) str(s) -#define str(s) #s -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - int ret; - - __asm__ __volatile__( - "ldcw 0(%2),%0" - : "=r"(ret), "=m"(*spinlock) - : "r"(spinlock)); - - return ret == 0; -} -#undef str -#undef xstr - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/i386/Makefile b/linuxthreads/sysdeps/i386/Makefile deleted file mode 100644 index d920e059a2..0000000000 --- a/linuxthreads/sysdeps/i386/Makefile +++ /dev/null @@ -1,23 +0,0 @@ -ifeq ($(subdir),linuxthreads) -# On i686 we must avoid generating the trampoline functions generated -# to get the GOT pointer. -CFLAGS-pt-initfini.s += -march=i386 -mtune=i386 - -# Most files must not be compiled without frame pointer since we need -# the frame base address which is stored in %ebp unless the frame pointer -# is optimized out. -CFLAGS-cancel.c += -fno-omit-frame-pointer -mpreferred-stack-boundary=4 -CFLAGS-condvar.c += -fno-omit-frame-pointer -CFLAGS-join.c += -fno-omit-frame-pointer -CFLAGS-manager.c += -fno-omit-frame-pointer -mpreferred-stack-boundary=4 -CFLAGS-oldsemaphore.c += -fno-omit-frame-pointer -CFLAGS-pthread.c += -fno-omit-frame-pointer -mpreferred-stack-boundary=4 -CFLAGS-ptlongjmp.c += -fno-omit-frame-pointer -CFLAGS-semaphore.c += -fno-omit-frame-pointer -CFLAGS-sighandler.c += -fno-omit-frame-pointer -mpreferred-stack-boundary=4 -CFLAGS-tst-align.c += -mpreferred-stack-boundary=4 -endif - -ifeq ($(subdir),csu) -gen-as-const-headers += tcb-offsets.sym -endif diff --git a/linuxthreads/sysdeps/i386/i586/Versions b/linuxthreads/sysdeps/i386/i586/Versions deleted file mode 100644 index 32da57080d..0000000000 --- a/linuxthreads/sysdeps/i386/i586/Versions +++ /dev/null @@ -1,5 +0,0 @@ -libpthread { - GLIBC_PRIVATE { - __pthread_clock_gettime; __pthread_clock_settime; - } -} diff --git a/linuxthreads/sysdeps/i386/i686/Versions b/linuxthreads/sysdeps/i386/i686/Versions deleted file mode 100644 index 32da57080d..0000000000 --- a/linuxthreads/sysdeps/i386/i686/Versions +++ /dev/null @@ -1,5 +0,0 @@ -libpthread { - GLIBC_PRIVATE { - __pthread_clock_gettime; __pthread_clock_settime; - } -} diff --git a/linuxthreads/sysdeps/i386/i686/pt-machine.h b/linuxthreads/sysdeps/i386/i686/pt-machine.h deleted file mode 100644 index 1c75bf9807..0000000000 --- a/linuxthreads/sysdeps/i386/i686/pt-machine.h +++ /dev/null @@ -1,79 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - i686 version. - Copyright (C) 1996-2001, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson <rth@tamu.edu>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif -#include "kernel-features.h" - -#ifndef __ASSEMBLER__ -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME __builtin_frame_address (0) - - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - long int ret; - - __asm__ __volatile__ ( - "xchgl %0, %1" - : "=r" (ret), "=m" (*spinlock) - : "0" (1), "m" (*spinlock) - : "memory"); - - return ret; -} - - -/* Compare-and-swap for semaphores. It's always available on i686. */ -#define HAS_COMPARE_AND_SWAP - -PT_EI int -__compare_and_swap (long int *p, long int oldval, long int newval) -{ - char ret; - long int readval; - - __asm__ __volatile__ ("lock; cmpxchgl %3, %1; sete %0" - : "=q" (ret), "=m" (*p), "=a" (readval) - : "r" (newval), "m" (*p), "a" (oldval) - : "memory"); - return ret; -} -#endif - -#if __ASSUME_LDT_WORKS > 0 -#include "../useldt.h" -#endif - -/* The P4 and above really want some help to prevent overheating. */ -#define BUSY_WAIT_NOP __asm__ ("rep; nop") - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/i386/pspinlock.c b/linuxthreads/sysdeps/i386/pspinlock.c deleted file mode 100644 index 6a70093957..0000000000 --- a/linuxthreads/sysdeps/i386/pspinlock.c +++ /dev/null @@ -1,103 +0,0 @@ -/* POSIX spinlock implementation. x86 version. - Copyright (C) 2000, 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" -#include "kernel-features.h" - - -/* This implementation is similar to the one used in the Linux kernel. - But the kernel is byte instructions for the memory access. This is - faster but unusable here. The problem is that only 128 - threads/processes could use the spinlock at the same time. If (by - a design error in the program) a thread/process would hold the - spinlock for a time long enough to accumulate 128 waiting - processes, the next one will find a positive value in the spinlock - and assume it is unlocked. We cannot accept that. */ - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - asm volatile - ("\n" - "1:\n\t" - "lock; decl %0\n\t" - "js 2f\n\t" - ".section .text.spinlock,\"ax\"\n" - "2:\n\t" - "cmpl $0,%0\n\t" - "rep; nop\n\t" - "jle 2b\n\t" - "jmp 1b\n\t" - ".previous" - : "=m" (*lock)); - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - int oldval; - - asm volatile - ("xchgl %0,%1" - : "=r" (oldval), "=m" (*lock) - : "0" (0)); - return oldval > 0 ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - asm volatile - ("movl $1,%0" - : "=m" (*lock)); - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 1; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) - -#ifndef __ASSUME_SET_THREAD_AREA_SYSCALL -int __have_no_set_thread_area; -#endif diff --git a/linuxthreads/sysdeps/i386/pt-machine.h b/linuxthreads/sysdeps/i386/pt-machine.h deleted file mode 100644 index 0df096d152..0000000000 --- a/linuxthreads/sysdeps/i386/pt-machine.h +++ /dev/null @@ -1,108 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - i386 version. - Copyright (C) 1996-2001, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson <rth@tamu.edu>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef __ASSEMBLER__ -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME __builtin_frame_address (0) - - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - long int ret; - - __asm__ __volatile__( - "xchgl %0, %1" - : "=r"(ret), "=m"(*spinlock) - : "0"(1), "m"(*spinlock) - : "memory"); - - return ret; -} - - -/* Compare-and-swap for semaphores. - Available on the 486 and above, but not on the 386. - We test dynamically whether it's available or not. */ - -#define HAS_COMPARE_AND_SWAP -#define TEST_FOR_COMPARE_AND_SWAP - -PT_EI int -__compare_and_swap (long int *p, long int oldval, long int newval) -{ - char ret; - long int readval; - - __asm__ __volatile__ ("lock; cmpxchgl %3, %1; sete %0" - : "=q" (ret), "=m" (*p), "=a" (readval) - : "r" (newval), "m" (*p), "a" (oldval) - : "memory"); - return ret; -} - - -PT_EI int -get_eflags (void) -{ - int res; - __asm__ __volatile__ ("pushfl; popl %0" : "=r" (res) : ); - return res; -} - - -PT_EI void -set_eflags (int newflags) -{ - __asm__ __volatile__ ("pushl %0; popfl" : : "r" (newflags) : "cc"); -} - - -PT_EI int -compare_and_swap_is_available (void) -{ - int oldflags = get_eflags (); - int changed; - /* Flip AC bit in EFLAGS. */ - set_eflags (oldflags ^ 0x40000); - /* See if bit changed. */ - changed = (get_eflags () ^ oldflags) & 0x40000; - /* Restore EFLAGS. */ - set_eflags (oldflags); - /* If the AC flag did not change, it's a 386 and it lacks cmpxchg. - Otherwise, it's a 486 or above and it has cmpxchg. */ - return changed != 0; -} -#endif /* __ASSEMBLER__ */ - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/i386/tcb-offsets.sym b/linuxthreads/sysdeps/i386/tcb-offsets.sym deleted file mode 100644 index 69a5018d88..0000000000 --- a/linuxthreads/sysdeps/i386/tcb-offsets.sym +++ /dev/null @@ -1,7 +0,0 @@ -#include <sysdep.h> -#include <tls.h> - -MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads) -#ifdef NEED_DL_SYSINFO -SYSINFO_OFFSET offsetof (tcbhead_t, sysinfo) -#endif diff --git a/linuxthreads/sysdeps/i386/tls.h b/linuxthreads/sysdeps/i386/tls.h deleted file mode 100644 index 002bcd3d14..0000000000 --- a/linuxthreads/sysdeps/i386/tls.h +++ /dev/null @@ -1,230 +0,0 @@ -/* Definition for thread-local data handling. linuxthreads/i386 version. - Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _TLS_H -#define _TLS_H - -# include <dl-sysdep.h> -# include <pt-machine.h> - -#ifndef __ASSEMBLER__ -# include <stdbool.h> -# include <stddef.h> -# include <stdint.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - struct - { - void *val; - bool is_static; - } pointer; -} dtv_t; - - -typedef struct -{ - void *tcb; /* Pointer to the TCB. Not necessary the - thread descriptor used by libpthread. */ - dtv_t *dtv; - void *self; /* Pointer to the thread descriptor. */ - int multiple_threads; -#ifdef NEED_DL_SYSINFO - uintptr_t sysinfo; -#endif -} tcbhead_t; - -#else /* __ASSEMBLER__ */ -# include <tcb-offsets.h> -#endif - -/* We can support TLS only if the floating-stack support is available. - However, we want to compile in the support and test at runtime whether - the running kernel can support it or not. To avoid bothering with the - TLS support code at all, use configure --without-tls. - - We need USE_TLS to be consistently defined, for ldsodefs.h conditionals. - But some of the code below can cause problems in building libpthread - (e.g. useldt.h will defined FLOATING_STACKS when it shouldn't). */ - -#if defined HAVE_TLS_SUPPORT \ - && (defined FLOATING_STACKS || !defined IS_IN_libpthread) - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -# ifndef __ASSEMBLER__ -/* Get system call information. */ -# include <sysdep.h> - - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -/* This is the size of the initial TCB. */ -# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) - -/* This is the size of the TCB. */ -# define TLS_TCB_SIZE sizeof (struct _pthread_descr_struct) - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* The TCB can have any size and the memory following the address the - thread pointer points to is unspecified. Allocate the TCB there. */ -# define TLS_TCB_AT_TP 1 - - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(descr, dtvp) \ - ((tcbhead_t *) (descr))->dtv = (dtvp) + 1 - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(dtv) \ - ({ struct _pthread_descr_struct *__descr; \ - THREAD_SETMEM (__descr, p_header.data.dtvp, (dtv)); }) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(descr) \ - (((tcbhead_t *) (descr))->dtv) - -# ifdef __PIC__ -# define TLS_EBX_ARG "r" -# define TLS_LOAD_EBX "xchgl %3, %%ebx\n\t" -# else -# define TLS_EBX_ARG "b" -# define TLS_LOAD_EBX -# endif - -# if !defined IS_IN_linuxthreads && !defined DO_MODIFY_LDT -# include "useldt.h" /* For the structure. */ -# endif -# if __ASSUME_LDT_WORKS > 0 -# define TLS_DO_MODIFY_LDT_KERNEL_CHECK(doit) (doit) /* Nothing to check. */ -# else -# define TLS_DO_MODIFY_LDT_KERNEL_CHECK(doit) \ - (__builtin_expect (GLRO(dl_osversion) < 131939, 0) \ - ? "kernel too old for thread-local storage support\n" \ - : (doit)) -# endif - -# define TLS_DO_MODIFY_LDT(descr, nr) \ -TLS_DO_MODIFY_LDT_KERNEL_CHECK( \ -({ \ - struct modify_ldt_ldt_s ldt_entry = \ - { nr, (unsigned long int) (descr), 0xfffff /* 4GB in pages */, \ - 1, 0, 0, 1, 0, 1, 0 }; \ - int result; \ - asm volatile (TLS_LOAD_EBX \ - "int $0x80\n\t" \ - TLS_LOAD_EBX \ - : "=a" (result) \ - : "0" (__NR_modify_ldt), \ - /* The extra argument with the "m" constraint is necessary \ - to let the compiler know that we are accessing LDT_ENTRY \ - here. */ \ - "m" (ldt_entry), TLS_EBX_ARG (1), "c" (&ldt_entry), \ - "d" (sizeof (ldt_entry))); \ - __builtin_expect (result, 0) == 0 \ - ? ({ asm ("movw %w0, %%gs" : : "q" ((nr) * 8 + 7)); NULL; }) \ - : "cannot set up LDT for thread-local storage\n"; \ -})) - -# define TLS_DO_SET_THREAD_AREA(descr, secondcall) \ -({ \ - struct modify_ldt_ldt_s ldt_entry = \ - { -1, (unsigned long int) (descr), 0xfffff /* 4GB in pages */, \ - 1, 0, 0, 1, 0, 1, 0 }; \ - int result; \ - if (secondcall) \ - ldt_entry.entry_number = ({ int _gs; \ - asm ("movw %%gs, %w0" : "=q" (_gs)); \ - (_gs & 0xffff) >> 3; }); \ - asm volatile (TLS_LOAD_EBX \ - "int $0x80\n\t" \ - TLS_LOAD_EBX \ - : "=a" (result), "=m" (ldt_entry.entry_number) \ - : "0" (__NR_set_thread_area), \ - /* The extra argument with the "m" constraint is necessary \ - to let the compiler know that we are accessing LDT_ENTRY \ - here. */ \ - TLS_EBX_ARG (&ldt_entry), "m" (ldt_entry)); \ - if (__builtin_expect (result, 0) == 0) \ - asm ("movw %w0, %%gs" : : "q" (ldt_entry.entry_number * 8 + 3)); \ - result; \ -}) - -# ifdef __ASSUME_SET_THREAD_AREA_SYSCALL -# define TLS_SETUP_GS_SEGMENT(descr, secondcall) \ - (TLS_DO_SET_THREAD_AREA (descr, secondcall) \ - ? "set_thread_area failed when setting up thread-local storage\n" : NULL) -# elif defined __NR_set_thread_area -# define TLS_SETUP_GS_SEGMENT(descr, secondcall) \ - (TLS_DO_SET_THREAD_AREA (descr, secondcall) \ - ? TLS_DO_MODIFY_LDT (descr, 0) : NULL) -# else -# define TLS_SETUP_GS_SEGMENT(descr, secondcall) \ - TLS_DO_MODIFY_LDT ((descr), 0) -# endif - -#if defined NEED_DL_SYSINFO -# define INIT_SYSINFO \ - head->sysinfo = GLRO(dl_sysinfo) -#else -# define INIT_SYSINFO -#endif - -/* Code to initially initialize the thread pointer. This might need - special attention since 'errno' is not yet available and if the - operation can cause a failure 'errno' must not be touched. - - The value of this macro is null if successful, or an error string. */ -# define TLS_INIT_TP(descr, secondcall) \ - ({ \ - void *_descr = (descr); \ - tcbhead_t *head = _descr; \ - \ - head->tcb = _descr; \ - /* For now the thread descriptor is at the same address. */ \ - head->self = _descr; \ - \ - INIT_SYSINFO; \ - TLS_SETUP_GS_SEGMENT (_descr, secondcall); \ - }) - -/* Indicate that dynamic linker shouldn't try to initialize TLS even - when no PT_TLS segments are found in the program and libraries - it is linked against. */ -# define TLS_INIT_TP_EXPENSIVE 1 - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - ({ struct _pthread_descr_struct *__descr; \ - THREAD_GETMEM (__descr, p_header.data.dtvp); }) - -# endif /* HAVE_TLS_SUPPORT && (FLOATING_STACKS || !IS_IN_libpthread) */ -#endif /* __ASSEMBLER__ */ - -#endif /* tls.h */ diff --git a/linuxthreads/sysdeps/i386/useldt.h b/linuxthreads/sysdeps/i386/useldt.h deleted file mode 100644 index 4ac82f1ab0..0000000000 --- a/linuxthreads/sysdeps/i386/useldt.h +++ /dev/null @@ -1,314 +0,0 @@ -/* Special definitions for ix86 machine using segment register based - thread descriptor. - Copyright (C) 1998, 2000, 2001, 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef __ASSEMBLER__ -#include <stddef.h> /* For offsetof. */ -#include <stdlib.h> /* For abort(). */ -#include <sysdep.h> - - -/* We don't want to include the kernel header. So duplicate the - information. */ - -/* Structure passed on `modify_ldt' call. */ -struct modify_ldt_ldt_s -{ - unsigned int entry_number; - unsigned long int base_addr; - unsigned int limit; - unsigned int seg_32bit:1; - unsigned int contents:2; - unsigned int read_exec_only:1; - unsigned int limit_in_pages:1; - unsigned int seg_not_present:1; - unsigned int useable:1; - unsigned int empty:25; -}; - -/* System call to set LDT entry. */ -extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t); - - -/* Return the thread descriptor for the current thread. - - The contained asm must *not* be marked volatile since otherwise - assignments like - pthread_descr self = thread_self(); - do not get optimized away. */ -#define THREAD_SELF \ -({ \ - register pthread_descr __self; \ - __asm__ ("movl %%gs:%c1,%0" : "=r" (__self) \ - : "i" (offsetof (struct _pthread_descr_struct, \ - p_header.data.self))); \ - __self; \ -}) - - -/* Initialize the thread-unique value. Two possible ways to do it. */ - -#define DO_MODIFY_LDT(descr, nr) \ -({ \ - struct modify_ldt_ldt_s ldt_entry = \ - { nr, (unsigned long int) (descr), 0xfffff /* 4GB in pages */, \ - 1, 0, 0, 1, 0, 1, 0 }; \ - if (__modify_ldt (1, &ldt_entry, sizeof (ldt_entry)) != 0) \ - abort (); \ - asm ("movw %w0, %%gs" : : "q" (nr * 8 + 7)); \ -}) - -#ifdef __PIC__ -# define USETLS_EBX_ARG "r" -# define USETLS_LOAD_EBX "xchgl %1, %%ebx\n\t" -#else -# define USETLS_EBX_ARG "b" -# define USETLS_LOAD_EBX -#endif - -/* When using the new set_thread_area call, we don't need to change %gs - because we inherited the value set up in the main thread by TLS setup. - We need to extract that value and set up the same segment in this - thread. */ -#if USE_TLS -# define DO_SET_THREAD_AREA_REUSE(nr) 1 -#else -/* Without TLS, we do the initialization of the main thread, where NR == 0. */ -# define DO_SET_THREAD_AREA_REUSE(nr) (!__builtin_constant_p (nr) || (nr)) -#endif -#define DO_SET_THREAD_AREA(descr, nr) \ -({ \ - int __gs; \ - if (DO_SET_THREAD_AREA_REUSE (nr)) \ - { \ - asm ("movw %%gs, %w0" : "=q" (__gs)); \ - struct modify_ldt_ldt_s ldt_entry = \ - { (__gs & 0xffff) >> 3, \ - (unsigned long int) (descr), 0xfffff /* 4GB in pages */, \ - 1, 0, 0, 1, 0, 1, 0 }; \ - \ - int __result; \ - __asm (USETLS_LOAD_EBX \ - "movl %2, %%eax\n\t" \ - "int $0x80\n\t" \ - USETLS_LOAD_EBX \ - : "=&a" (__result) \ - : USETLS_EBX_ARG (&ldt_entry), "i" (__NR_set_thread_area), \ - "m" (ldt_entry) \ - : "memory"); \ - if (__result == 0) \ - asm ("movw %w0, %%gs" :: "q" (__gs)); \ - else \ - __gs = -1; \ - } \ - else \ - { \ - struct modify_ldt_ldt_s ldt_entry = \ - { -1, \ - (unsigned long int) (descr), 0xfffff /* 4GB in pages */, \ - 1, 0, 0, 1, 0, 1, 0 }; \ - int __result; \ - __asm (USETLS_LOAD_EBX \ - "movl %2, %%eax\n\t" \ - "int $0x80\n\t" \ - USETLS_LOAD_EBX \ - : "=&a" (__result) \ - : USETLS_EBX_ARG (&ldt_entry), "i" (__NR_set_thread_area), \ - "m" (ldt_entry) \ - : "memory"); \ - if (__result == 0) \ - { \ - __gs = (ldt_entry.entry_number << 3) + 3; \ - asm ("movw %w0, %%gs" : : "q" (__gs)); \ - } \ - else \ - __gs = -1; \ - } \ - __gs; \ -}) - -#if defined __ASSUME_SET_THREAD_AREA_SYSCALL -# define INIT_THREAD_SELF(descr, nr) DO_SET_THREAD_AREA (descr, nr) -#elif defined __NR_set_thread_area -# define INIT_THREAD_SELF(descr, nr) \ -({ \ - if (__builtin_expect (__have_no_set_thread_area, 0) \ - || (DO_SET_THREAD_AREA (descr, DO_SET_THREAD_AREA_REUSE (nr)) == -1 \ - && (__have_no_set_thread_area = 1))) \ - DO_MODIFY_LDT (descr, nr); \ -}) -/* Defined in pspinlock.c. */ -extern int __have_no_set_thread_area; -#else -# define INIT_THREAD_SELF(descr, nr) DO_MODIFY_LDT (descr, nr) -#endif - -/* Free resources associated with thread descriptor. */ -#ifdef __ASSUME_SET_THREAD_AREA_SYSCALL -#define FREE_THREAD(descr, nr) do { } while (0) -#elif defined __NR_set_thread_area -#define FREE_THREAD(descr, nr) \ -{ \ - int __gs; \ - __asm__ __volatile__ ("movw %%gs, %w0" : "=q" (__gs)); \ - if (__builtin_expect (__gs & 4, 0)) \ - { \ - struct modify_ldt_ldt_s ldt_entry = \ - { nr, 0, 0, 0, 0, 1, 0, 1, 0, 0 }; \ - __modify_ldt (1, &ldt_entry, sizeof (ldt_entry)); \ - } \ -} -#else -#define FREE_THREAD(descr, nr) \ -{ \ - struct modify_ldt_ldt_s ldt_entry = \ - { nr, 0, 0, 0, 0, 1, 0, 1, 0, 0 }; \ - __modify_ldt (1, &ldt_entry, sizeof (ldt_entry)); \ -} -#endif - -/* Read member of the thread descriptor directly. */ -#define THREAD_GETMEM(descr, member) \ -({ \ - __typeof__ (descr->member) __value; \ - if (sizeof (__value) == 1) \ - __asm__ __volatile__ ("movb %%gs:%P2,%b0" \ - : "=q" (__value) \ - : "0" (0), \ - "i" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else if (sizeof (__value) == 4) \ - __asm__ __volatile__ ("movl %%gs:%P1,%0" \ - : "=r" (__value) \ - : "i" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else \ - { \ - if (sizeof (__value) != 8) \ - /* There should not be any value with a size other than 1, 4 or 8. */\ - abort (); \ - \ - __asm__ __volatile__ ("movl %%gs:%P1,%%eax\n\t" \ - "movl %%gs:%P2,%%edx" \ - : "=A" (__value) \ - : "i" (offsetof (struct _pthread_descr_struct, \ - member)), \ - "i" (offsetof (struct _pthread_descr_struct, \ - member) + 4)); \ - } \ - __value; \ -}) - -/* Same as THREAD_GETMEM, but the member offset can be non-constant. */ -#define THREAD_GETMEM_NC(descr, member) \ -({ \ - __typeof__ (descr->member) __value; \ - if (sizeof (__value) == 1) \ - __asm__ __volatile__ ("movb %%gs:(%2),%b0" \ - : "=q" (__value) \ - : "0" (0), \ - "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else if (sizeof (__value) == 4) \ - __asm__ __volatile__ ("movl %%gs:(%1),%0" \ - : "=r" (__value) \ - : "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else \ - { \ - if (sizeof (__value) != 8) \ - /* There should not be any value with a size other than 1, 4 or 8. */\ - abort (); \ - \ - __asm__ __volatile__ ("movl %%gs:(%1),%%eax\n\t" \ - "movl %%gs:4(%1),%%edx" \ - : "=&A" (__value) \ - : "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - } \ - __value; \ -}) - -/* Same as THREAD_SETMEM, but the member offset can be non-constant. */ -#define THREAD_SETMEM(descr, member, value) \ -({ \ - __typeof__ (descr->member) __value = (value); \ - if (sizeof (__value) == 1) \ - __asm__ __volatile__ ("movb %0,%%gs:%P1" : \ - : "q" (__value), \ - "i" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else if (sizeof (__value) == 4) \ - __asm__ __volatile__ ("movl %0,%%gs:%P1" : \ - : "r" (__value), \ - "i" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else \ - { \ - if (sizeof (__value) != 8) \ - /* There should not be any value with a size other than 1, 4 or 8. */\ - abort (); \ - \ - __asm__ __volatile__ ("movl %%eax,%%gs:%P1\n\n" \ - "movl %%edx,%%gs:%P2" : \ - : "A" (__value), \ - "i" (offsetof (struct _pthread_descr_struct, \ - member)), \ - "i" (offsetof (struct _pthread_descr_struct, \ - member) + 4)); \ - } \ -}) - -/* Set member of the thread descriptor directly. */ -#define THREAD_SETMEM_NC(descr, member, value) \ -({ \ - __typeof__ (descr->member) __value = (value); \ - if (sizeof (__value) == 1) \ - __asm__ __volatile__ ("movb %0,%%gs:(%1)" : \ - : "q" (__value), \ - "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else if (sizeof (__value) == 4) \ - __asm__ __volatile__ ("movl %0,%%gs:(%1)" : \ - : "r" (__value), \ - "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else \ - { \ - if (sizeof (__value) != 8) \ - /* There should not be any value with a size other than 1, 4 or 8. */\ - abort (); \ - \ - __asm__ __volatile__ ("movl %%eax,%%gs:(%1)\n\t" \ - "movl %%edx,%%gs:4(%1)" : \ - : "A" (__value), \ - "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - } \ -}) -#endif - -#if __ASSUME_LDT_WORKS > 0 -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 8*1024*1024 -#endif diff --git a/linuxthreads/sysdeps/ia64/Makefile b/linuxthreads/sysdeps/ia64/Makefile deleted file mode 100644 index 81bddf688c..0000000000 --- a/linuxthreads/sysdeps/ia64/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -ifeq ($(subdir),csu) -gen-as-const-headers += tcb-offsets.sym -endif diff --git a/linuxthreads/sysdeps/ia64/Versions b/linuxthreads/sysdeps/ia64/Versions deleted file mode 100644 index 32da57080d..0000000000 --- a/linuxthreads/sysdeps/ia64/Versions +++ /dev/null @@ -1,5 +0,0 @@ -libpthread { - GLIBC_PRIVATE { - __pthread_clock_gettime; __pthread_clock_settime; - } -} diff --git a/linuxthreads/sysdeps/ia64/pspinlock.c b/linuxthreads/sysdeps/ia64/pspinlock.c deleted file mode 100644 index d61aa3f434..0000000000 --- a/linuxthreads/sysdeps/ia64/pspinlock.c +++ /dev/null @@ -1,79 +0,0 @@ -/* POSIX spinlock implementation. ia64 version. - Copyright (C) 2000, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jes Sorensen <jes@linuxcare.com> - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" -#include <ia64intrin.h> - -/* This implementation is inspired by the implementation used in the - Linux kernel. */ - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - int *p = (int *) lock; - - while (__builtin_expect (__sync_val_compare_and_swap (p, 0, 1), 0)) - { - /* Spin without using the atomic instruction. */ - do - __asm __volatile ("" : : : "memory"); - while (*p); - } - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - return __sync_val_compare_and_swap ((int *) lock, 0, 1) == 0 ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - return *lock = 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - return *lock = 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/ia64/pt-machine.h b/linuxthreads/sysdeps/ia64/pt-machine.h deleted file mode 100644 index 6c5dfe93bb..0000000000 --- a/linuxthreads/sysdeps/ia64/pt-machine.h +++ /dev/null @@ -1,133 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - IA-64 version. - Copyright (C) 1999, 2000, 2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#include <ia64intrin.h> - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* Make sure gcc doesn't try to be clever and move things around on - us. We need to use _exactly_ the address the user gave us, not some - alias that contains the same information. */ -#define __atomic_fool_gcc(x) (*(volatile struct { int a[100]; } *)x) - -#ifndef ELF_MACHINE_NAME - -#define NEED_SEPARATE_REGISTER_STACK - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 32*1024*1024 - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. - r12 (sp) is the stack pointer. */ -#define CURRENT_STACK_FRAME stack_pointer -register char *stack_pointer __asm__ ("sp"); - - -/* Register r13 (tp) is reserved by the ABI as "thread pointer". */ -struct _pthread_descr_struct; -register struct _pthread_descr_struct *__thread_self __asm__("r13"); - -/* Return the thread descriptor for the current thread. */ -#define THREAD_SELF __thread_self - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr)) - - -/* Access to data in the thread descriptor is easy. */ -#define THREAD_GETMEM(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_GETMEM_NC(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_SETMEM(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) -#define THREAD_SETMEM_NC(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) - - -/* Memory barrier */ -#define MEMORY_BARRIER() __sync_synchronize () - - -#define HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS - -PT_EI int -__compare_and_swap (long int *p, long int oldval, long int newval) -{ - long int readval; - - __asm__ __volatile__ - ("mov ar.ccv=%4;;\n\t" - "cmpxchg8.acq %0=%1,%2,ar.ccv" - : "=r" (readval), "=m" (__atomic_fool_gcc (p)) - : "r"(newval), "m" (__atomic_fool_gcc (p)), "r" (oldval) - : "memory"); - return readval == oldval; -} - -PT_EI int -__compare_and_swap_with_release_semantics (long int *p, - long int oldval, - long int newval) -{ - long int readval; - - __asm__ __volatile__ - ("mov ar.ccv=%4;;\n\t" - "cmpxchg8.rel %0=%1,%2,ar.ccv" - : "=r" (readval), "=m" (__atomic_fool_gcc (p)) - : "r"(newval), "m" (__atomic_fool_gcc (p)), "r" (oldval) - : "memory"); - return readval == oldval; -} - -#endif /* ELF_MACHINE_NAME */ - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - long int ret; - - __asm__ __volatile__( - "xchg4 %0=%1,%2" - : "=r"(ret), "=m"(__atomic_fool_gcc (spinlock)) - : "r"(1), "m"(__atomic_fool_gcc (spinlock)) - : "memory"); - - return ret; -} - -/* Indicate that we are looping. */ -#define BUSY_WAIT_NOP __asm__ ("hint @pause") - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/ia64/tcb-offsets.sym b/linuxthreads/sysdeps/ia64/tcb-offsets.sym deleted file mode 100644 index f7793f7665..0000000000 --- a/linuxthreads/sysdeps/ia64/tcb-offsets.sym +++ /dev/null @@ -1,9 +0,0 @@ -#include <sysdep.h> -#include <tls.h> - --- -#ifdef USE_TLS -MULTIPLE_THREADS_OFFSET offsetof (struct _pthread_descr_struct, p_multiple_threads) - sizeof (struct _pthread_descr_struct) -#else -MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads) -#endif diff --git a/linuxthreads/sysdeps/ia64/tls.h b/linuxthreads/sysdeps/ia64/tls.h deleted file mode 100644 index c97000e446..0000000000 --- a/linuxthreads/sysdeps/ia64/tls.h +++ /dev/null @@ -1,146 +0,0 @@ -/* Definitions for thread-local data handling. linuxthreads/IA-64 version. - Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _TLS_H -#define _TLS_H - -#ifndef __ASSEMBLER__ - -# include <dl-sysdep.h> -# include <pt-machine.h> -# include <stdbool.h> -# include <stddef.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - struct - { - void *val; - bool is_static; - } pointer; -} dtv_t; - -#else /* __ASSEMBLER__ */ -# include <tcb-offsets.h> -#endif /* __ASSEMBLER__ */ - -#ifdef HAVE_TLS_SUPPORT - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -# ifndef __ASSEMBLER__ - -typedef struct -{ - dtv_t *dtv; - void *private; -} tcbhead_t; - -/* This is the size of the initial TCB. */ -# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) - -/* This is the size of the TCB. */ -# define TLS_TCB_SIZE sizeof (tcbhead_t) - -/* This is the size we need before TCB. */ -# define TLS_PRE_TCB_SIZE sizeof (struct _pthread_descr_struct) - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* The DTV is allocated at the TP; the TCB is placed elsewhere. */ -# define TLS_DTV_AT_TP 1 - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(tcbp, dtvp) \ - ((tcbhead_t *) (tcbp))->dtv = (dtvp) + 1 - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(DTV) \ - (((tcbhead_t *)__thread_self)->dtv = (DTV)) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(tcbp) \ - (((tcbhead_t *) (tcbp))->dtv) - -#if defined NEED_DL_SYSINFO -# define INIT_SYSINFO \ - (((tcbhead_t *) __thread_self)->private = (void *) GLRO(dl_sysinfo)) -#else -# define INIT_SYSINFO 0 -#endif - -/* Code to initially initialize the thread pointer. This might need - special attention since 'errno' is not yet available and if the - operation can cause a failure 'errno' must not be touched. */ -# define TLS_INIT_TP(tcbp, secondcall) \ - (__thread_self = (__typeof (__thread_self)) (tcbp), INIT_SYSINFO, NULL) - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - (((tcbhead_t *)__thread_self)->dtv) - -/* Return the thread descriptor for the current thread. */ -# undef THREAD_SELF -# define THREAD_SELF (__thread_self - 1) - -# undef INIT_THREAD_SELF -# define INIT_THREAD_SELF(descr, nr) \ - (__thread_self = (struct _pthread_descr_struct *)(descr) + 1) - -# define TLS_MULTIPLE_THREADS_IN_TCB 1 - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -# endif - -#else - -# ifndef __ASSEMBLER__ - -typedef struct -{ - void *tcb; - dtv_t *dtv; - void *self; - int multiple_threads; -} tcbhead_t; - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -# define NONTLS_INIT_TP \ - do { \ - static const tcbhead_t nontls_init_tp = { .multiple_threads = 0 }; \ - __thread_self = (__typeof (__thread_self)) &nontls_init_tp; \ - } while (0) - -#endif - -#endif /* USE_TLS */ - -#endif /* tls.h */ diff --git a/linuxthreads/sysdeps/m68k/pspinlock.c b/linuxthreads/sysdeps/m68k/pspinlock.c deleted file mode 100644 index 30b9b9e8b9..0000000000 --- a/linuxthreads/sysdeps/m68k/pspinlock.c +++ /dev/null @@ -1,82 +0,0 @@ -/* POSIX spinlock implementation. M68k version. - Copyright (C) 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - unsigned int val; - - do - asm volatile ("tas %1; sne %0" - : "=dm" (val), "=m" (*lock) - : "m" (*lock) - : "cc"); - while (val); - - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - unsigned int val; - - asm volatile ("tas %1; sne %0" - : "=dm" (val), "=m" (*lock) - : "m" (*lock) - : "cc"); - - return val ? EBUSY : 0; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - return *lock = 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - return *lock = 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/m68k/pt-machine.h b/linuxthreads/sysdeps/m68k/pt-machine.h deleted file mode 100644 index ad524d6d2e..0000000000 --- a/linuxthreads/sysdeps/m68k/pt-machine.h +++ /dev/null @@ -1,69 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - m68k version. - Copyright (C) 1996, 1998, 2000, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson <rth@tamu.edu>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, write to the Free Software Foundation, Inc., - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - char ret; - - __asm__ __volatile__("tas %1; sne %0" - : "=dm"(ret), "=m"(*spinlock) - : "m"(*spinlock) - : "cc"); - - return ret; -} - - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("%sp"); - - -/* Compare-and-swap for semaphores. */ - -#define HAS_COMPARE_AND_SWAP -PT_EI int -__compare_and_swap (long int *p, long int oldval, long int newval) -{ - char ret; - long int readval; - - __asm__ __volatile__ ("casl %2, %3, %1; seq %0" - : "=dm" (ret), "=m" (*p), "=d" (readval) - : "d" (newval), "m" (*p), "2" (oldval)); - - return ret; -} - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/mips/pspinlock.c b/linuxthreads/sysdeps/mips/pspinlock.c deleted file mode 100644 index 350aa7553c..0000000000 --- a/linuxthreads/sysdeps/mips/pspinlock.c +++ /dev/null @@ -1,98 +0,0 @@ -/* POSIX spinlock implementation. MIPS version. - Copyright (C) 2000, 2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include <sgidefs.h> -#include <sys/tas.h> -#include "internals.h" - -#include <sgidefs.h> - -/* This implementation is similar to the one used in the Linux kernel. */ -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - unsigned int tmp1, tmp2; - - asm volatile - ("\t\t\t# spin_lock\n" - "1:\n\t" - ".set push\n\t" -#if _MIPS_SIM == _ABIO32 - ".set mips2\n\t" -#endif - "ll %1,%3\n\t" - "li %2,1\n\t" - "bnez %1,1b\n\t" - "sc %2,%0\n\t" - ".set pop\n\t" - "beqz %2,1b" - : "=m" (*lock), "=&r" (tmp1), "=&r" (tmp2) - : "m" (*lock) - : "memory"); - - return 0; -} - -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - /* To be done. */ - return 0; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - asm volatile - ("\t\t\t# spin_unlock\n\t" - "sw $0,%0" - : "=m" (*lock) - : - : "memory"); - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/mips/pt-machine.h b/linuxthreads/sysdeps/mips/pt-machine.h deleted file mode 100644 index 96f7a7f8c6..0000000000 --- a/linuxthreads/sysdeps/mips/pt-machine.h +++ /dev/null @@ -1,92 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - - Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ralf Baechle <ralf@gnu.org>. - Based on the Alpha version by Richard Henderson <rth@tamu.edu>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, write to the Free Software Foundation, Inc., - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#include <sgidefs.h> -#include <sys/tas.h> - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - - -/* Spinlock implementation; required. */ - -PT_EI long int -testandset (int *spinlock) -{ - return _test_and_set (spinlock, 1); -} - - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("$29"); - - -/* Compare-and-swap for semaphores. */ - -#define HAS_COMPARE_AND_SWAP -PT_EI int -__compare_and_swap (long int *p, long int oldval, long int newval) -{ - long int ret, temp; - - __asm__ __volatile__ - ("/* Inline compare & swap */\n" - "1:\n\t" - ".set push\n\t" -#if _MIPS_SIM == _ABIO32 - ".set mips2\n\t" -#endif -#if _MIPS_SIM == _ABI64 - "lld %1,%5\n\t" -#else - "ll %1,%5\n\t" -#endif - "move %0,$0\n\t" - "bne %1,%3,2f\n\t" - "move %0,%4\n\t" -#if _MIPS_SIM == _ABI64 - "scd %0,%2\n\t" -#else - "sc %0,%2\n\t" -#endif - ".set pop\n\t" - "beqz %0,1b\n" - "2:\n\t" - "/* End compare & swap */" - : "=&r" (ret), "=&r" (temp), "=m" (*p) - : "r" (oldval), "r" (newval), "m" (*p) - : "memory"); - - return ret; -} - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/mips/tls.h b/linuxthreads/sysdeps/mips/tls.h deleted file mode 100644 index be4478db43..0000000000 --- a/linuxthreads/sysdeps/mips/tls.h +++ /dev/null @@ -1,170 +0,0 @@ -/* Definitions for thread-local data handling. linuxthreads/MIPS version. - Copyright (C) 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _TLS_H -#define _TLS_H - -#ifndef __ASSEMBLER__ - -# include <stdbool.h> -# include <pt-machine.h> -# include <stddef.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - struct - { - void *val; - bool is_static; - } pointer; -} dtv_t; - -# define READ_THREAD_POINTER() \ - ({ void *__result; \ - asm volatile (".set\tpush\n\t.set\tmips32r2\n\t" \ - "rdhwr\t%0, $29\n\t.set\tpop" : "=v" (__result)); \ - __result; }) - -#else /* __ASSEMBLER__ */ -# include <tcb-offsets.h> - -/* Note: rd must be $v1 to be ABI-conformant. */ -# define READ_THREAD_POINTER(rd) \ - .set push; \ - .set mips32r2; \ - rdhwr rd, $29; \ - .set pop -#endif /* __ASSEMBLER__ */ - -/* LinuxThreads can only use TLS if both floating stacks (in the MIPS case, - that means support for "rdhwr") and support from the tools are available. - - We have to define USE_TLS consistently, or ldsodefs.h will lay out types - differently between an NPTL build and a LinuxThreads build. It can be set - for libc.so and not libpthread.so, but only if we provide appropriate padding - in the _pthread_descr_struct. - - Currently nothing defines FLOATING_STACKS. We could assume this based on - kernel version once the TLS patches are available in kernel.org, but - it hardly seems worth it. Use NPTL if you can. - - To avoid bothering with the TLS support code at all, use configure - --without-tls. */ - -#if defined HAVE_TLS_SUPPORT \ - && (defined FLOATING_STACKS || !defined IS_IN_libpthread) - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -/* Include padding in _pthread_descr_struct so that libc can find p_errno, - if libpthread will only include the padding because of the !IS_IN_libpthread - check. */ -#ifndef FLOATING_STACKS -# define INCLUDE_TLS_PADDING 1 -#endif - -# ifndef __ASSEMBLER__ - -/* This layout is actually wholly private and not affected by the ABI. - Nor does it overlap the pthread data structure, so we need nothing - extra here at all. */ -typedef struct -{ - dtv_t *dtv; - void *private; -} tcbhead_t; - -/* This is the size of the initial TCB. */ -# define TLS_INIT_TCB_SIZE 0 - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* This is the size of the TCB. */ -# define TLS_TCB_SIZE 0 - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* This is the size we need before TCB. */ -# define TLS_PRE_TCB_SIZE \ - (sizeof (struct _pthread_descr_struct) \ - + ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1))) - -/* The thread pointer (in hardware register $29) points to the end of - the TCB + 0x7000, as for PowerPC. The pthread_descr structure is - immediately in front of the TCB. */ -#define TLS_TCB_OFFSET 0x7000 - -/* The DTV is allocated at the TP; the TCB is placed elsewhere. */ -/* This is not really true for powerpc64. We are following alpha - where the DTV pointer is first doubleword in the TCB. */ -# define TLS_DTV_AT_TP 1 - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(TCBP, DTVP) \ - (((tcbhead_t *) (TCBP))[-1].dtv = (DTVP) + 1) - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(DTV) (THREAD_DTV() = (DTV)) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(TCBP) (((tcbhead_t *) (TCBP))[-1].dtv) - -/* Code to initially initialize the thread pointer. This might need - special attention since 'errno' is not yet available and if the - operation can cause a failure 'errno' must not be touched. */ -# define TLS_INIT_TP(tcbp, secondcall) \ - ({ INTERNAL_SYSCALL_DECL (err); \ - long result_var; \ - result_var = INTERNAL_SYSCALL (set_thread_area, err, 1, \ - (char *) (tcbp) + TLS_TCB_OFFSET); \ - INTERNAL_SYSCALL_ERROR_P (result_var, err) \ - ? "unknown error" : NULL; }) - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - (((tcbhead_t *) (READ_THREAD_POINTER () - TLS_TCB_OFFSET))[-1].dtv) - -/* Return the thread descriptor for the current thread. */ -# undef THREAD_SELF -# define THREAD_SELF \ - ((pthread_descr) (READ_THREAD_POINTER () \ - - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)) - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -/* l_tls_offset == 0 is perfectly valid on MIPS, so we have to use some - different value to mean unset l_tls_offset. */ -# define NO_TLS_OFFSET -1 - -/* Initializing the thread pointer requires a syscall which may not be - available, so don't do it if we don't need to. */ -# define TLS_INIT_TP_EXPENSIVE 1 - -# endif /* __ASSEMBLER__ */ - -#endif /* HAVE_TLS_SUPPORT */ - -#endif /* tls.h */ diff --git a/linuxthreads/sysdeps/powerpc/Makefile b/linuxthreads/sysdeps/powerpc/Makefile deleted file mode 100644 index 33e4aceb5b..0000000000 --- a/linuxthreads/sysdeps/powerpc/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -ifeq ($(subdir):$(elf),linuxthreads:yes) -# See CFLAGS-initfini.s above; this is the same code. -CFLAGS-pt-initfini.s = -g0 -fpic -O1 -endif -ifeq ($(subdir),csu) -gen-as-const-headers += tcb-offsets.sym -endif diff --git a/linuxthreads/sysdeps/powerpc/powerpc32/pspinlock.c b/linuxthreads/sysdeps/powerpc/powerpc32/pspinlock.c deleted file mode 100644 index 15fd545c14..0000000000 --- a/linuxthreads/sysdeps/powerpc/powerpc32/pspinlock.c +++ /dev/null @@ -1,70 +0,0 @@ -/* POSIX spinlock implementation. PowerPC version. - Copyright (C) 2000, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - while (! __compare_and_swap ((long int *)lock, 0, 1)) - ; - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - return __compare_and_swap ((long int *)lock, 0, 1) ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - MEMORY_BARRIER (); - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/powerpc/powerpc32/pt-machine.h b/linuxthreads/sysdeps/powerpc/powerpc32/pt-machine.h deleted file mode 100644 index 8363d16d08..0000000000 --- a/linuxthreads/sysdeps/powerpc/powerpc32/pt-machine.h +++ /dev/null @@ -1,120 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - powerpc version. - Copyright (C) 1996, 1997, 1998, 2000, 2001, 2002, 2003 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, write to the Free Software Foundation, Inc., - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* These routines are from Appendix G of the 'PowerPC 601 RISC Microprocessor - User's Manual', by IBM and Motorola. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* For multiprocessor systems, we want to ensure all memory accesses - are completed before we reset a lock. On other systems, we still - need to make sure that the compiler has flushed everything to memory. */ -#define MEMORY_BARRIER() __asm__ __volatile__ ("sync" : : : "memory") - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 8*1024*1024 - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("r1"); - -/* Register r2 (tp) is reserved by the ABI as "thread pointer". */ -struct _pthread_descr_struct; -register struct _pthread_descr_struct *__thread_self __asm__("r2"); - -/* Return the thread descriptor for the current thread. */ -#define THREAD_SELF __thread_self - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr)) - -/* Access to data in the thread descriptor is easy. */ -#define THREAD_GETMEM(descr, member) \ - ((void) (descr), THREAD_SELF->member) -#define THREAD_GETMEM_NC(descr, member) \ - ((void) (descr), THREAD_SELF->member) -#define THREAD_SETMEM(descr, member, value) \ - ((void) (descr), THREAD_SELF->member = (value)) -#define THREAD_SETMEM_NC(descr, member, value) \ - ((void) (descr), THREAD_SELF->member = (value)) - -/* Compare-and-swap for semaphores. */ -/* note that test-and-set(x) is the same as !compare-and-swap(x, 0, 1) */ - -#define HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS -#define IMPLEMENT_TAS_WITH_CAS - -PT_EI int -__compare_and_swap (long int *p, long int oldval, long int newval) -{ - int ret; - - __asm__ __volatile__ ( - "0: lwarx %0,0,%1 ;" - " xor. %0,%3,%0;" - " bne 1f;" - " stwcx. %2,0,%1;" - " bne- 0b;" - "1: " - : "=&r"(ret) - : "r"(p), "r"(newval), "r"(oldval) - : "cr0", "memory"); - /* This version of __compare_and_swap is to be used when acquiring - a lock, so we don't need to worry about whether other memory - operations have completed, but we do need to be sure that any loads - after this point really occur after we have acquired the lock. */ - __asm__ __volatile__ ("isync" : : : "memory"); - return ret == 0; -} - -PT_EI int -__compare_and_swap_with_release_semantics (long int *p, - long int oldval, long int newval) -{ - int ret; - - MEMORY_BARRIER (); - __asm__ __volatile__ ( - "0: lwarx %0,0,%1 ;" - " xor. %0,%3,%0;" - " bne 1f;" - " stwcx. %2,0,%1;" - " bne- 0b;" - "1: " - : "=&r"(ret) - : "r"(p), "r"(newval), "r"(oldval) - : "cr0", "memory"); - return ret == 0; -} - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/powerpc/powerpc64/pspinlock.c b/linuxthreads/sysdeps/powerpc/powerpc64/pspinlock.c deleted file mode 100644 index 19161c6e10..0000000000 --- a/linuxthreads/sysdeps/powerpc/powerpc64/pspinlock.c +++ /dev/null @@ -1,70 +0,0 @@ -/* POSIX spinlock implementation. PowerPC version. - Copyright (C) 2000, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - while (! __compare_and_swap32 ((int *)lock, 0, 1)) - ; - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - return __compare_and_swap32 ((int *)lock, 0, 1) ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - MEMORY_BARRIER (); - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/powerpc/powerpc64/pt-machine.h b/linuxthreads/sysdeps/powerpc/powerpc64/pt-machine.h deleted file mode 100644 index 562e69fa18..0000000000 --- a/linuxthreads/sysdeps/powerpc/powerpc64/pt-machine.h +++ /dev/null @@ -1,185 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - powerpc version. - Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, write to the Free Software Foundation, Inc., - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* These routines are from Appendix G of the 'PowerPC 601 RISC Microprocessor - User's Manual', by IBM and Motorola. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); -extern int __compare_and_swap32 (int *p, int oldval, int newval); - -/* For multiprocessor systems, we want to ensure all memory accesses - are completed before we reset a lock. On other systems, we still - need to make sure that the compiler has flushed everything to memory. */ -#define MEMORY_BARRIER() __asm__ __volatile__ ("lwsync" : : : "memory") -#define READ_MEMORY_BARRIER() __asm__ __volatile__ ("lwsync" : : : "memory") -#define WRITE_MEMORY_BARRIER() __asm__ __volatile__ ("eieio" : : : "memory") - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 16*1024*1024 - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("r1"); - -/* Register r13 (tp) is reserved by the ABI as "thread pointer". */ -struct _pthread_descr_struct; -register struct _pthread_descr_struct *__thread_self __asm__("r13"); - -/* Return the thread descriptor for the current thread. */ -#define THREAD_SELF __thread_self - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr)) - -/* Access to data in the thread descriptor is easy. */ -#define THREAD_GETMEM(descr, member) \ - ((void) (descr), THREAD_SELF->member) -#define THREAD_GETMEM_NC(descr, member) \ - ((void) (descr), THREAD_SELF->member) -#define THREAD_SETMEM(descr, member, value) \ - ((void) (descr), THREAD_SELF->member = (value)) -#define THREAD_SETMEM_NC(descr, member, value) \ - ((void) (descr), THREAD_SELF->member = (value)) - -/* Compare-and-swap for semaphores. */ -/* note that test-and-set(x) is the same as !compare-and-swap(x, 0, 1) */ - -#define HAS_COMPARE_AND_SWAP -#define HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS - -PT_EI int -__compare_and_swap (long int *p, long int oldval, long int newval) -{ - long int ret; - - __asm__ __volatile__ ( - "0: ldarx %0,0,%1 ;" - " xor. %0,%3,%0;" - " bne 1f;" - " stdcx. %2,0,%1;" - " bne- 0b;" - "1: " - : "=&r"(ret) - : "r"(p), "r"(newval), "r"(oldval) - : "cr0", "memory"); - /* This version of __compare_and_swap is to be used when acquiring - a lock, so we don't need to worry about whether other memory - operations have completed, but we do need to be sure that any loads - after this point really occur after we have acquired the lock. */ - __asm__ __volatile__ ("isync" : : : "memory"); - return (int)(ret == 0); -} - -PT_EI int -__compare_and_swap_with_release_semantics (long int *p, - long int oldval, long int newval) -{ - long int ret; - - MEMORY_BARRIER (); - __asm__ __volatile__ ( - "0: ldarx %0,0,%1 ;" - " xor. %0,%3,%0;" - " bne 1f;" - " stdcx. %2,0,%1;" - " bne- 0b;" - "1: " - : "=&r"(ret) - : "r"(p), "r"(newval), "r"(oldval) - : "cr0", "memory"); - return (int)(ret == 0); -} - -PT_EI int -__compare_and_swap32 (int *p, int oldval, int newval) -{ - int ret; - - __asm__ __volatile__ ( - "0: lwarx %0,0,%1 ;" - " xor. %0,%3,%0;" - " bne 1f;" - " stwcx. %2,0,%1;" - " bne- 0b;" - "1: " - : "=&r"(ret) - : "r"(p), "r"(newval), "r"(oldval) - : "cr0", "memory"); - /* This version of __compare_and_swap is to be used when acquiring - a lock, so we don't need to worry about whether other memory - operations have completed, but we do need to be sure that any loads - after this point really occur after we have acquired the lock. */ - __asm__ __volatile__ ("isync" : : : "memory"); - return (int)(ret == 0); -} - -PT_EI int -__compare_and_swap32_with_release_semantics (long int *p, - long int oldval, long int newval) -{ - long int ret; - - MEMORY_BARRIER (); - __asm__ __volatile__ ( - "0: lwarx %0,0,%1 ;" - " xor. %0,%3,%0;" - " bne 1f;" - " stwcx. %2,0,%1;" - " bne- 0b;" - "1: " - : "=&r"(ret) - : "r"(p), "r"(newval), "r"(oldval) - : "cr0", "memory"); - return (int)(ret == 0); -} - -PT_EI long int -testandset (int *p) -{ - long int ret, val = 1; - - MEMORY_BARRIER (); - __asm__ __volatile__ ( - "0: lwarx %0,0,%1 ;" - " cmpwi 0,%0,0;" - " bne 1f;" - " stwcx. %2,0,%1;" - " bne- 0b;" - "1: " - : "=&r"(ret) - : "r"(p), "r" (val) - : "cr0", "memory"); - MEMORY_BARRIER (); - return ret != 0; -} - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/powerpc/tcb-offsets.sym b/linuxthreads/sysdeps/powerpc/tcb-offsets.sym deleted file mode 100644 index 7c5cca01ea..0000000000 --- a/linuxthreads/sysdeps/powerpc/tcb-offsets.sym +++ /dev/null @@ -1,19 +0,0 @@ -#include <sysdep.h> -#include <tls.h> - --- This line separates the #include lines from conditionals. - -# ifdef USE_TLS - --- Abuse tls.h macros to derive offsets relative to the thread register. -# undef __thread_register -# define __thread_register ((void *) 0) -# define thread_offsetof(mem) ((ptrdiff_t) THREAD_SELF + offsetof (struct _pthread_descr_struct, p_##mem)) - -# else - -# define thread_offsetof(mem) offsetof (tcbhead_t, mem) - -# endif - -MULTIPLE_THREADS_OFFSET thread_offsetof (multiple_threads) diff --git a/linuxthreads/sysdeps/powerpc/tls.h b/linuxthreads/sysdeps/powerpc/tls.h deleted file mode 100644 index 1ae0b60ff1..0000000000 --- a/linuxthreads/sysdeps/powerpc/tls.h +++ /dev/null @@ -1,165 +0,0 @@ -/* Definitions for thread-local data handling. linuxthreads/PPC version. - Copyright (C) 2003, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _TLS_H -#define _TLS_H - -#ifndef __ASSEMBLER__ - -# include <pt-machine.h> -# include <stdbool.h> -# include <stddef.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - struct - { - void *val; - bool is_static; - } pointer; -} dtv_t; - -#else /* __ASSEMBLER__ */ -# include <tcb-offsets.h> -#endif /* __ASSEMBLER__ */ - -#ifdef HAVE_TLS_SUPPORT - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -# ifndef __ASSEMBLER__ - -/* This layout is actually wholly private and not affected by the ABI. - Nor does it overlap the pthread data structure, so we need nothing - extra here at all. */ -typedef struct -{ - dtv_t *dtv; -} tcbhead_t; - -/* This is the size of the initial TCB. */ -# define TLS_INIT_TCB_SIZE 0 - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* This is the size of the TCB. */ -# define TLS_TCB_SIZE 0 - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* This is the size we need before TCB. */ -# define TLS_PRE_TCB_SIZE \ - (sizeof (struct _pthread_descr_struct) \ - + ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1))) - -/* The following assumes that TP (R2 or R13) is points to the end of the - TCB + 0x7000 (per the ABI). This implies that TCB address is - TP - 0x7000. As we define TLS_DTV_AT_TP we can - assume that the pthread_descr is allocated immediately ahead of the - TCB. This implies that the pthread_descr address is - TP - (TLS_PRE_TCB_SIZE + 0x7000). */ -#define TLS_TCB_OFFSET 0x7000 - -/* The DTV is allocated at the TP; the TCB is placed elsewhere. */ -/* This is not really true for powerpc64. We are following alpha - where the DTV pointer is first doubleword in the TCB. */ -# define TLS_DTV_AT_TP 1 - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(TCBP, DTVP) \ - (((tcbhead_t *) (TCBP))[-1].dtv = (DTVP) + 1) - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(DTV) (THREAD_DTV() = (DTV)) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(TCBP) (((tcbhead_t *) (TCBP))[-1].dtv) - -/* We still need this define so that tcb-offsets.sym can override it and - use THREAD_SELF to generate MULTIPLE_THREADS_OFFSET. */ -# define __thread_register ((void *) __thread_self) - -/* Code to initially initialize the thread pointer. This might need - special attention since 'errno' is not yet available and if the - operation can cause a failure 'errno' must not be touched. - - The global register variable is declared in pt-machine.h with the - wrong type, so we need some extra casts to get the desired result. - This avoids a lvalue cast that gcc-3.4 does not like. */ -# define TLS_INIT_TP(TCBP, SECONDCALL) \ - (__thread_self = (struct _pthread_descr_struct *) \ - ((void *) (TCBP) + TLS_TCB_OFFSET), NULL) - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - (((tcbhead_t *) ((void *) __thread_self - TLS_TCB_OFFSET))[-1].dtv) - -/* Return the thread descriptor for the current thread. */ -# undef THREAD_SELF -# define THREAD_SELF \ - ((pthread_descr) (__thread_register \ - - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)) - -# undef INIT_THREAD_SELF -# define INIT_THREAD_SELF(DESCR, NR) \ - (__thread_self = (struct _pthread_descr_struct *)((void *) (DESCR) \ - + TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE)) - -/* Make sure we have the p_multiple_threads member in the thread structure. - See below. */ -# define TLS_MULTIPLE_THREADS_IN_TCB 1 - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -/* l_tls_offset == 0 is perfectly valid on PPC, so we have to use some - different value to mean unset l_tls_offset. */ -# define NO_TLS_OFFSET -1 - -# endif /* __ASSEMBLER__ */ - -#elif !defined __ASSEMBLER__ - -/* This overlaps the start of the pthread_descr. System calls - and such use this to find the multiple_threads flag and need - to use the same offset relative to the thread register in both - single-threaded and multi-threaded code. */ -typedef struct -{ - void *tcb; /* Never used. */ - dtv_t *dtv; /* Never used. */ - void *self; /* Used only if multithreaded, and rarely. */ - int multiple_threads; /* Only this member is really used. */ -} tcbhead_t; - -#define NONTLS_INIT_TP \ - do { \ - static const tcbhead_t nontls_init_tp = { .multiple_threads = 0 }; \ - __thread_self = (__typeof (__thread_self)) &nontls_init_tp; \ - } while (0) - -#endif /* HAVE_TLS_SUPPORT */ - -#endif /* tls.h */ diff --git a/linuxthreads/sysdeps/pthread/Makefile b/linuxthreads/sysdeps/pthread/Makefile deleted file mode 100644 index f73f40e9d9..0000000000 --- a/linuxthreads/sysdeps/pthread/Makefile +++ /dev/null @@ -1,14 +0,0 @@ -ifeq ($(subdir),rt) -librt-sysdep_routines += timer_routines -CPPFLAGS += -DBROKEN_THREAD_SIGNALS - -ifeq (yes,$(build-shared)) -$(objpfx)tst-timer: $(objpfx)librt.so $(shared-thread-library) -else -$(objpfx)tst-timer: $(objpfx)librt.a $(static-thread-library) -endif -endif - -ifeq ($(subdir),posix) -CFLAGS-confstr.c += -DLIBPTHREAD_VERSION="\"$(shell sed 's/\(.*\) by .*/\1/' ../linuxthreads/Banner)\"" -endif diff --git a/linuxthreads/sysdeps/pthread/Subdirs b/linuxthreads/sysdeps/pthread/Subdirs deleted file mode 100644 index 2c56497842..0000000000 --- a/linuxthreads/sysdeps/pthread/Subdirs +++ /dev/null @@ -1 +0,0 @@ -linuxthreads_db diff --git a/linuxthreads/sysdeps/pthread/bits/initspin.h b/linuxthreads/sysdeps/pthread/bits/initspin.h deleted file mode 100644 index a19ec077e8..0000000000 --- a/linuxthreads/sysdeps/pthread/bits/initspin.h +++ /dev/null @@ -1,28 +0,0 @@ -/* Generic definitions for spinlock initializers. - Copyright (C) 2000, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* Initial value of a spinlock. Most platforms should use zero, - unless they only implement a "test and clear" operation instead of - the usual "test and set". */ -#define __LT_SPINLOCK_INIT 0 - -/* Macros for lock initializers, using the above definition. */ -#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT } -#define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT } -#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT } diff --git a/linuxthreads/sysdeps/pthread/bits/libc-lock.h b/linuxthreads/sysdeps/pthread/bits/libc-lock.h deleted file mode 100644 index 7e22166862..0000000000 --- a/linuxthreads/sysdeps/pthread/bits/libc-lock.h +++ /dev/null @@ -1,413 +0,0 @@ -/* libc-internal interface for mutex locks. LinuxThreads version. - Copyright (C) 1996,1997,1998,1999,2000,2001,2002,2003 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _BITS_LIBC_LOCK_H -#define _BITS_LIBC_LOCK_H 1 - -#include <pthread.h> - -#if defined _LIBC && !defined NOT_IN_libc -#include <linuxthreads/internals.h> -#endif - -/* Mutex type. */ -#if defined(_LIBC) || defined(_IO_MTSAFE_IO) -typedef pthread_mutex_t __libc_lock_t; -typedef struct { pthread_mutex_t mutex; } __libc_lock_recursive_t; -# ifdef __USE_UNIX98 -typedef pthread_rwlock_t __libc_rwlock_t; -# else -typedef struct __libc_rwlock_opaque__ __libc_rwlock_t; -# endif -typedef __libc_lock_recursive_t __rtld_lock_recursive_t; -#else -typedef struct __libc_lock_opaque__ __libc_lock_t; -typedef struct __libc_lock_recursive_opaque__ __libc_lock_recursive_t; -typedef struct __libc_rwlock_opaque__ __libc_rwlock_t; -#endif - -/* Type for key to thread-specific data. */ -typedef pthread_key_t __libc_key_t; - -/* Define a lock variable NAME with storage class CLASS. The lock must be - initialized with __libc_lock_init before it can be used (or define it - with __libc_lock_define_initialized, below). Use `extern' for CLASS to - declare a lock defined in another module. In public structure - definitions you must use a pointer to the lock structure (i.e., NAME - begins with a `*'), because its storage size will not be known outside - of libc. */ -#define __libc_lock_define(CLASS,NAME) \ - CLASS __libc_lock_t NAME; -#define __libc_rwlock_define(CLASS,NAME) \ - CLASS __libc_rwlock_t NAME; -#define __libc_lock_define_recursive(CLASS,NAME) \ - CLASS __libc_lock_recursive_t NAME; -#define __rtld_lock_define_recursive(CLASS,NAME) \ - CLASS __rtld_lock_recursive_t NAME; - -/* Define an initialized lock variable NAME with storage class CLASS. - - For the C library we take a deeper look at the initializer. For - this implementation all fields are initialized to zero. Therefore - we don't initialize the variable which allows putting it into the - BSS section. (Except on PA-RISC and other odd architectures, where - initialized locks must be set to one due to the lack of normal - atomic operations.) */ - -#if __LT_SPINLOCK_INIT == 0 -# define __libc_lock_define_initialized(CLASS,NAME) \ - CLASS __libc_lock_t NAME; -#else -# define __libc_lock_define_initialized(CLASS,NAME) \ - CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER; -#endif - -#define __libc_rwlock_define_initialized(CLASS,NAME) \ - CLASS __libc_rwlock_t NAME = PTHREAD_RWLOCK_INITIALIZER; - -/* Define an initialized recursive lock variable NAME with storage - class CLASS. */ -#define __libc_lock_define_initialized_recursive(CLASS,NAME) \ - CLASS __libc_lock_recursive_t NAME = _LIBC_LOCK_RECURSIVE_INITIALIZER; -#define _LIBC_LOCK_RECURSIVE_INITIALIZER \ - {PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP} - -#define __rtld_lock_define_initialized_recursive(CLASS,NAME) \ - CLASS __rtld_lock_recursive_t NAME = _RTLD_LOCK_RECURSIVE_INITIALIZER; -#define _RTLD_LOCK_RECURSIVE_INITIALIZER \ - {PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP} - -#if defined _LIBC && defined IS_IN_libpthread -# define __libc_maybe_call(FUNC, ARGS, ELSE) FUNC ARGS -#else -# if defined __PIC__ || (defined _LIBC && defined SHARED) -# define __libc_maybe_call(FUNC, ARGS, ELSE) \ - (__extension__ ({ __typeof (FUNC) *_fn = (FUNC); \ - _fn != NULL ? (*_fn) ARGS : ELSE; })) -# else -# define __libc_maybe_call(FUNC, ARGS, ELSE) \ - (FUNC != NULL ? FUNC ARGS : ELSE) -# endif -#endif -#if defined _LIBC && !defined NOT_IN_libc && defined SHARED -# define __libc_maybe_call2(FUNC, ARGS, ELSE) \ - ({__builtin_expect (__libc_pthread_functions.ptr_##FUNC != NULL, 0) \ - ? __libc_pthread_functions.ptr_##FUNC ARGS : ELSE; }) -#else -# define __libc_maybe_call2(FUNC, ARGS, ELSE) __libc_maybe_call (__##FUNC, ARGS, ELSE) -#endif - -/* Initialize the named lock variable, leaving it in a consistent, unlocked - state. */ -#if defined _LIBC && !defined NOT_IN_libc && defined SHARED -#define __libc_lock_init(NAME) \ - ({ \ - (NAME).__m_count = 0; \ - (NAME).__m_owner = NULL; \ - (NAME).__m_kind = PTHREAD_MUTEX_TIMED_NP; \ - (NAME).__m_lock.__status = 0; \ - (NAME).__m_lock.__spinlock = __LT_SPINLOCK_INIT; \ - 0; }) -#else -#define __libc_lock_init(NAME) \ - (__libc_maybe_call2 (pthread_mutex_init, (&(NAME), NULL), 0)) -#endif -#define __libc_rwlock_init(NAME) \ - (__libc_maybe_call (__pthread_rwlock_init, (&(NAME), NULL), 0)); - -/* Same as last but this time we initialize a recursive mutex. */ -#if defined _LIBC && !defined NOT_IN_libc && defined SHARED -#define __libc_lock_init_recursive(NAME) \ - ({ \ - (NAME).mutex.__m_count = 0; \ - (NAME).mutex.__m_owner = NULL; \ - (NAME).mutex.__m_kind = PTHREAD_MUTEX_RECURSIVE_NP; \ - (NAME).mutex.__m_lock.__status = 0; \ - (NAME).mutex.__m_lock.__spinlock = __LT_SPINLOCK_INIT; \ - 0; }) -#else -#define __libc_lock_init_recursive(NAME) \ - do { \ - if (__pthread_mutex_init != NULL) \ - { \ - pthread_mutexattr_t __attr; \ - __pthread_mutexattr_init (&__attr); \ - __pthread_mutexattr_settype (&__attr, PTHREAD_MUTEX_RECURSIVE_NP); \ - __pthread_mutex_init (&(NAME).mutex, &__attr); \ - __pthread_mutexattr_destroy (&__attr); \ - } \ - } while (0); -#endif -#define __rtld_lock_init_recursive(NAME) \ - __libc_lock_init_recursive (NAME) - -/* Finalize the named lock variable, which must be locked. It cannot be - used again until __libc_lock_init is called again on it. This must be - called on a lock variable before the containing storage is reused. */ -#define __libc_lock_fini(NAME) \ - (__libc_maybe_call2 (pthread_mutex_destroy, (&(NAME)), 0)); -#define __libc_rwlock_fini(NAME) \ - (__libc_maybe_call (__pthread_rwlock_destroy, (&(NAME)), 0)); - -/* Finalize recursive named lock. */ -#define __libc_lock_fini_recursive(NAME) __libc_lock_fini ((NAME).mutex) -#define __rtld_lock_fini_recursive(NAME) __libc_lock_fini_recursive (NAME) - -/* Lock the named lock variable. */ -#define __libc_lock_lock(NAME) \ - (__libc_maybe_call2 (pthread_mutex_lock, (&(NAME)), 0)); -#define __libc_rwlock_rdlock(NAME) \ - (__libc_maybe_call (__pthread_rwlock_rdlock, (&(NAME)), 0)); -#define __libc_rwlock_wrlock(NAME) \ - (__libc_maybe_call (__pthread_rwlock_wrlock, (&(NAME)), 0)); - -/* Lock the recursive named lock variable. */ -#define __libc_lock_lock_recursive(NAME) __libc_lock_lock ((NAME).mutex) - -/* Try to lock the named lock variable. */ -#define __libc_lock_trylock(NAME) \ - (__libc_maybe_call2 (pthread_mutex_trylock, (&(NAME)), 0)) -#define __libc_rwlock_tryrdlock(NAME) \ - (__libc_maybe_call (__pthread_rwlock_tryrdlock, (&(NAME)), 0)) -#define __libc_rwlock_trywrlock(NAME) \ - (__libc_maybe_call (__pthread_rwlock_trywrlock, (&(NAME)), 0)) - -/* Try to lock the recursive named lock variable. */ -#define __libc_lock_trylock_recursive(NAME) __libc_lock_trylock ((NAME).mutex) -#define __rtld_lock_trylock_recursive(NAME) \ - __libc_lock_trylock_recursive (NAME) - -/* Unlock the named lock variable. */ -#define __libc_lock_unlock(NAME) \ - (__libc_maybe_call2 (pthread_mutex_unlock, (&(NAME)), 0)); -#define __libc_rwlock_unlock(NAME) \ - (__libc_maybe_call (__pthread_rwlock_unlock, (&(NAME)), 0)); - -/* Unlock the recursive named lock variable. */ -#define __libc_lock_unlock_recursive(NAME) __libc_lock_unlock ((NAME).mutex) - -#if defined _LIBC && defined SHARED -# define __rtld_lock_default_lock_recursive(lock) \ - ++((pthread_mutex_t *)(lock))->__m_count; - -# define __rtld_lock_default_unlock_recursive(lock) \ - --((pthread_mutex_t *)(lock))->__m_count; - -# define __rtld_lock_lock_recursive(NAME) \ - GL(dl_rtld_lock_recursive) (&(NAME).mutex) - -# define __rtld_lock_unlock_recursive(NAME) \ - GL(dl_rtld_unlock_recursive) (&(NAME).mutex) -#else -#define __rtld_lock_lock_recursive(NAME) __libc_lock_lock_recursive (NAME) -#define __rtld_lock_unlock_recursive(NAME) __libc_lock_unlock_recursive (NAME) -#endif - -/* Define once control variable. */ -#if PTHREAD_ONCE_INIT == 0 -/* Special case for static variables where we can avoid the initialization - if it is zero. */ -# define __libc_once_define(CLASS, NAME) \ - CLASS pthread_once_t NAME -#else -# define __libc_once_define(CLASS, NAME) \ - CLASS pthread_once_t NAME = PTHREAD_ONCE_INIT -#endif - -/* Call handler iff the first call. */ -#define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \ - do { \ - if (__pthread_once != NULL) \ - __pthread_once (&(ONCE_CONTROL), (INIT_FUNCTION)); \ - else if ((ONCE_CONTROL) == PTHREAD_ONCE_INIT) { \ - INIT_FUNCTION (); \ - (ONCE_CONTROL) = 2; \ - } \ - } while (0) - - -/* Start critical region with cleanup. */ -#define __libc_cleanup_region_start(DOIT, FCT, ARG) \ - { struct _pthread_cleanup_buffer _buffer; \ - int _avail = (DOIT) && _pthread_cleanup_push_defer != NULL; \ - if (_avail) { \ - _pthread_cleanup_push_defer (&_buffer, (FCT), (ARG)); \ - } - -/* End critical region with cleanup. */ -#define __libc_cleanup_region_end(DOIT) \ - if (_avail) { \ - _pthread_cleanup_pop_restore (&_buffer, (DOIT)); \ - } \ - } - -/* Sometimes we have to exit the block in the middle. */ -#define __libc_cleanup_end(DOIT) \ - if (_avail) { \ - _pthread_cleanup_pop_restore (&_buffer, (DOIT)); \ - } - -#define __libc_cleanup_push(fct, arg) \ - { struct _pthread_cleanup_buffer _buffer; \ - __libc_maybe_call (_pthread_cleanup_push, (&_buffer, (fct), (arg)), 0) - -#define __libc_cleanup_pop(execute) \ - __libc_maybe_call (_pthread_cleanup_pop, (&_buffer, execute), 0); \ - } - -/* Create thread-specific key. */ -#define __libc_key_create(KEY, DESTRUCTOR) \ - (__libc_maybe_call (__pthread_key_create, (KEY, DESTRUCTOR), 1)) - -/* Get thread-specific data. */ -#define __libc_getspecific(KEY) \ - (__libc_maybe_call (__pthread_getspecific, (KEY), NULL)) - -/* Set thread-specific data. */ -#define __libc_setspecific(KEY, VALUE) \ - (__libc_maybe_call (__pthread_setspecific, (KEY, VALUE), 0)) - - -/* Register handlers to execute before and after `fork'. */ -#define __libc_atfork(PREPARE, PARENT, CHILD) \ - (__libc_maybe_call (__pthread_atfork, (PREPARE, PARENT, CHILD), 0)) - -/* Functions that are used by this file and are internal to the GNU C - library. */ - -extern int __pthread_mutex_init (pthread_mutex_t *__mutex, - __const pthread_mutexattr_t *__mutex_attr); - -extern int __pthread_mutex_destroy (pthread_mutex_t *__mutex); - -extern int __pthread_mutex_trylock (pthread_mutex_t *__mutex); - -extern int __pthread_mutex_lock (pthread_mutex_t *__mutex); - -extern int __pthread_mutex_unlock (pthread_mutex_t *__mutex); - -extern int __pthread_mutexattr_init (pthread_mutexattr_t *__attr); - -extern int __pthread_mutexattr_destroy (pthread_mutexattr_t *__attr); - -extern int __pthread_mutexattr_settype (pthread_mutexattr_t *__attr, - int __kind); - -#ifdef __USE_UNIX98 -extern int __pthread_rwlock_init (pthread_rwlock_t *__rwlock, - __const pthread_rwlockattr_t *__attr); - -extern int __pthread_rwlock_destroy (pthread_rwlock_t *__rwlock); - -extern int __pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock); - -extern int __pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock); - -extern int __pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock); - -extern int __pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock); - -extern int __pthread_rwlock_unlock (pthread_rwlock_t *__rwlock); -#endif - -extern int __pthread_key_create (pthread_key_t *__key, - void (*__destr_function) (void *)); - -extern int __pthread_setspecific (pthread_key_t __key, - __const void *__pointer); - -extern void *__pthread_getspecific (pthread_key_t __key); - -extern int __pthread_once (pthread_once_t *__once_control, - void (*__init_routine) (void)); - -extern int __pthread_atfork (void (*__prepare) (void), - void (*__parent) (void), - void (*__child) (void)); - - - -/* Make the pthread functions weak so that we can elide them from - single-threaded processes. */ -#ifndef __NO_WEAK_PTHREAD_ALIASES -# ifdef weak_extern -# if _LIBC -# include <bp-sym.h> -# else -# define BP_SYM (sym) sym -# endif -weak_extern (BP_SYM (__pthread_mutex_init)) -weak_extern (BP_SYM (__pthread_mutex_destroy)) -weak_extern (BP_SYM (__pthread_mutex_lock)) -weak_extern (BP_SYM (__pthread_mutex_trylock)) -weak_extern (BP_SYM (__pthread_mutex_unlock)) -weak_extern (BP_SYM (__pthread_mutexattr_init)) -weak_extern (BP_SYM (__pthread_mutexattr_destroy)) -weak_extern (BP_SYM (__pthread_mutexattr_settype)) -weak_extern (BP_SYM (__pthread_rwlock_init)) -weak_extern (BP_SYM (__pthread_rwlock_destroy)) -weak_extern (BP_SYM (__pthread_rwlock_rdlock)) -weak_extern (BP_SYM (__pthread_rwlock_tryrdlock)) -weak_extern (BP_SYM (__pthread_rwlock_wrlock)) -weak_extern (BP_SYM (__pthread_rwlock_trywrlock)) -weak_extern (BP_SYM (__pthread_rwlock_unlock)) -weak_extern (BP_SYM (__pthread_key_create)) -weak_extern (BP_SYM (__pthread_setspecific)) -weak_extern (BP_SYM (__pthread_getspecific)) -weak_extern (BP_SYM (__pthread_once)) -weak_extern (__pthread_initialize) -weak_extern (__pthread_atfork) -weak_extern (BP_SYM (_pthread_cleanup_push)) -weak_extern (BP_SYM (_pthread_cleanup_pop)) -weak_extern (BP_SYM (_pthread_cleanup_push_defer)) -weak_extern (BP_SYM (_pthread_cleanup_pop_restore)) -# else -# pragma weak __pthread_mutex_init -# pragma weak __pthread_mutex_destroy -# pragma weak __pthread_mutex_lock -# pragma weak __pthread_mutex_trylock -# pragma weak __pthread_mutex_unlock -# pragma weak __pthread_mutexattr_init -# pragma weak __pthread_mutexattr_destroy -# pragma weak __pthread_mutexattr_settype -# pragma weak __pthread_rwlock_destroy -# pragma weak __pthread_rwlock_rdlock -# pragma weak __pthread_rwlock_tryrdlock -# pragma weak __pthread_rwlock_wrlock -# pragma weak __pthread_rwlock_trywrlock -# pragma weak __pthread_rwlock_unlock -# pragma weak __pthread_key_create -# pragma weak __pthread_setspecific -# pragma weak __pthread_getspecific -# pragma weak __pthread_once -# pragma weak __pthread_initialize -# pragma weak __pthread_atfork -# pragma weak _pthread_cleanup_push_defer -# pragma weak _pthread_cleanup_pop_restore -# pragma weak _pthread_cleanup_push -# pragma weak _pthread_cleanup_pop -# endif -#endif - -/* We need portable names for some functions. E.g., when they are - used as argument to __libc_cleanup_region_start. */ -#define __libc_mutex_unlock __pthread_mutex_unlock - -#endif /* bits/libc-lock.h */ diff --git a/linuxthreads/sysdeps/pthread/bits/libc-tsd.h b/linuxthreads/sysdeps/pthread/bits/libc-tsd.h deleted file mode 100644 index fa6eb4be28..0000000000 --- a/linuxthreads/sysdeps/pthread/bits/libc-tsd.h +++ /dev/null @@ -1,59 +0,0 @@ -/* libc-internal interface for thread-specific data. LinuxThreads version. - Copyright (C) 1997-2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _BITS_LIBC_TSD_H -#define _BITS_LIBC_TSD_H 1 - -#include <linuxthreads/descr.h> -#include <tls.h> - -#if USE_TLS && HAVE___THREAD - -/* When __thread works, the generic definition is what we want. */ -# include <sysdeps/generic/bits/libc-tsd.h> - -#else - -# include <bits/libc-lock.h> - -# ifndef SHARED -extern void ** __pthread_internal_tsd_address (int); -extern void *__pthread_internal_tsd_get (int); -extern int __pthread_internal_tsd_set (int, const void *); - -weak_extern (__pthread_internal_tsd_address) -weak_extern (__pthread_internal_tsd_get) -weak_extern (__pthread_internal_tsd_set) -# endif - -#define __libc_tsd_define(CLASS, KEY) CLASS void *__libc_tsd_##KEY##_data; -#define __libc_tsd_address(KEY) \ - __libc_maybe_call2 (pthread_internal_tsd_address, \ - (_LIBC_TSD_KEY_##KEY), &__libc_tsd_##KEY##_data) -#define __libc_tsd_get(KEY) \ - __libc_maybe_call2 (pthread_internal_tsd_get, \ - (_LIBC_TSD_KEY_##KEY), __libc_tsd_##KEY##_data) -#define __libc_tsd_set(KEY, VALUE) \ - __libc_maybe_call2 (pthread_internal_tsd_set, \ - (_LIBC_TSD_KEY_##KEY, (VALUE)), \ - (__libc_tsd_##KEY##_data = (VALUE), 0)) - -#endif - -#endif /* bits/libc-tsd.h */ diff --git a/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h b/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h deleted file mode 100644 index d1daef07aa..0000000000 --- a/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h +++ /dev/null @@ -1,152 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -#if !defined _BITS_TYPES_H && !defined _PTHREAD_H -# error "Never include <bits/pthreadtypes.h> directly; use <sys/types.h> instead." -#endif - -#ifndef _BITS_PTHREADTYPES_H -#define _BITS_PTHREADTYPES_H 1 - -#define __need_schedparam -#include <bits/sched.h> - -/* Fast locks (not abstract because mutexes and conditions aren't abstract). */ -struct _pthread_fastlock -{ - long int __status; /* "Free" or "taken" or head of waiting list */ - int __spinlock; /* Used by compare_and_swap emulation. Also, - adaptive SMP lock stores spin count here. */ -}; - -#ifndef _PTHREAD_DESCR_DEFINED -/* Thread descriptors */ -typedef struct _pthread_descr_struct *_pthread_descr; -# define _PTHREAD_DESCR_DEFINED -#endif - - -/* Attributes for threads. */ -typedef struct __pthread_attr_s -{ - int __detachstate; - int __schedpolicy; - struct __sched_param __schedparam; - int __inheritsched; - int __scope; - size_t __guardsize; - int __stackaddr_set; - void *__stackaddr; - size_t __stacksize; -} pthread_attr_t; - - -/* Conditions (not abstract because of PTHREAD_COND_INITIALIZER */ - -#ifdef __GLIBC_HAVE_LONG_LONG -__extension__ typedef long long __pthread_cond_align_t; -#else -typedef long __pthread_cond_align_t; -#endif - -typedef struct -{ - struct _pthread_fastlock __c_lock; /* Protect against concurrent access */ - _pthread_descr __c_waiting; /* Threads waiting on this condition */ - char __padding[48 - sizeof (struct _pthread_fastlock) - - sizeof (_pthread_descr) - sizeof (__pthread_cond_align_t)]; - __pthread_cond_align_t __align; -} pthread_cond_t; - - -/* Attribute for conditionally variables. */ -typedef struct -{ - int __dummy; -} pthread_condattr_t; - -/* Keys for thread-specific data */ -typedef unsigned int pthread_key_t; - - -/* Mutexes (not abstract because of PTHREAD_MUTEX_INITIALIZER). */ -/* (The layout is unnatural to maintain binary compatibility - with earlier releases of LinuxThreads.) */ -typedef struct -{ - int __m_reserved; /* Reserved for future use */ - int __m_count; /* Depth of recursive locking */ - _pthread_descr __m_owner; /* Owner thread (if recursive or errcheck) */ - int __m_kind; /* Mutex kind: fast, recursive or errcheck */ - struct _pthread_fastlock __m_lock; /* Underlying fast lock */ -} pthread_mutex_t; - - -/* Attribute for mutex. */ -typedef struct -{ - int __mutexkind; -} pthread_mutexattr_t; - - -/* Once-only execution */ -typedef int pthread_once_t; - - -#if defined __USE_UNIX98 || defined __USE_XOPEN2K -/* Read-write locks. */ -typedef struct _pthread_rwlock_t -{ - struct _pthread_fastlock __rw_lock; /* Lock to guarantee mutual exclusion */ - int __rw_readers; /* Number of readers */ - _pthread_descr __rw_writer; /* Identity of writer, or NULL if none */ - _pthread_descr __rw_read_waiting; /* Threads waiting for reading */ - _pthread_descr __rw_write_waiting; /* Threads waiting for writing */ - int __rw_kind; /* Reader/Writer preference selection */ - int __rw_pshared; /* Shared between processes or not */ -} pthread_rwlock_t; - - -/* Attribute for read-write locks. */ -typedef struct -{ - int __lockkind; - int __pshared; -} pthread_rwlockattr_t; -#endif - -#ifdef __USE_XOPEN2K -/* POSIX spinlock data type. */ -typedef volatile int pthread_spinlock_t; - -/* POSIX barrier. */ -typedef struct { - struct _pthread_fastlock __ba_lock; /* Lock to guarantee mutual exclusion */ - int __ba_required; /* Threads needed for completion */ - int __ba_present; /* Threads waiting */ - _pthread_descr __ba_waiting; /* Queue of waiting threads */ -} pthread_barrier_t; - -/* barrier attribute */ -typedef struct { - int __pshared; -} pthread_barrierattr_t; - -#endif - - -/* Thread identifiers */ -typedef unsigned long int pthread_t; - -#endif /* bits/pthreadtypes.h */ diff --git a/linuxthreads/sysdeps/pthread/bits/typesizes.h b/linuxthreads/sysdeps/pthread/bits/typesizes.h deleted file mode 100644 index 45264ac9cf..0000000000 --- a/linuxthreads/sysdeps/pthread/bits/typesizes.h +++ /dev/null @@ -1,66 +0,0 @@ -/* bits/typesizes.h -- underlying types for *_t. Generic version. - Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _BITS_TYPES_H -# error "Never include <bits/typesizes.h> directly; use <sys/types.h> instead." -#endif - -#ifndef _BITS_TYPESIZES_H -#define _BITS_TYPESIZES_H 1 - -/* See <bits/types.h> for the meaning of these macros. This file exists so - that <bits/types.h> need not vary across different GNU platforms. */ - -#define __DEV_T_TYPE __UQUAD_TYPE -#define __UID_T_TYPE __U32_TYPE -#define __GID_T_TYPE __U32_TYPE -#define __INO_T_TYPE __ULONGWORD_TYPE -#define __INO64_T_TYPE __UQUAD_TYPE -#define __MODE_T_TYPE __U32_TYPE -#define __NLINK_T_TYPE __UWORD_TYPE -#define __OFF_T_TYPE __SLONGWORD_TYPE -#define __OFF64_T_TYPE __SQUAD_TYPE -#define __PID_T_TYPE __S32_TYPE -#define __RLIM_T_TYPE __ULONGWORD_TYPE -#define __RLIM64_T_TYPE __UQUAD_TYPE -#define __BLKCNT_T_TYPE __SLONGWORD_TYPE -#define __BLKCNT64_T_TYPE __SQUAD_TYPE -#define __FSBLKCNT_T_TYPE __ULONGWORD_TYPE -#define __FSBLKCNT64_T_TYPE __UQUAD_TYPE -#define __FSFILCNT_T_TYPE __ULONGWORD_TYPE -#define __FSFILCNT64_T_TYPE __UQUAD_TYPE -#define __ID_T_TYPE __U32_TYPE -#define __CLOCK_T_TYPE __SLONGWORD_TYPE -#define __TIME_T_TYPE __SLONGWORD_TYPE -#define __USECONDS_T_TYPE __U32_TYPE -#define __SUSECONDS_T_TYPE __SLONGWORD_TYPE -#define __DADDR_T_TYPE __S32_TYPE -#define __SWBLK_T_TYPE __SLONGWORD_TYPE -#define __KEY_T_TYPE __S32_TYPE -#define __CLOCKID_T_TYPE __S32_TYPE -#define __TIMER_T_TYPE __S32_TYPE -#define __BLKSIZE_T_TYPE __SLONGWORD_TYPE -#define __FSID_T_TYPE struct { int __val[2]; } -#define __SSIZE_T_TYPE __SWORD_TYPE - -/* Number of descriptors that can fit in an `fd_set'. */ -#define __FD_SETSIZE 1024 - - -#endif /* bits/typesizes.h */ diff --git a/linuxthreads/sysdeps/pthread/errno-loc.c b/linuxthreads/sysdeps/pthread/errno-loc.c deleted file mode 100644 index 0a8f0f9076..0000000000 --- a/linuxthreads/sysdeps/pthread/errno-loc.c +++ /dev/null @@ -1,46 +0,0 @@ -/* MT support function to get address of `errno' variable, linuxthreads - version. - Copyright (C) 1996, 1998, 2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <tls.h> -#include <linuxthreads/internals.h> -#include <sysdep-cancel.h> - -#if ! USE___THREAD && !RTLD_PRIVATE_ERRNO -#undef errno -extern int errno; -#endif - -int * -#if ! USE___THREAD -weak_const_function -#endif -__errno_location (void) -{ -#if ! USE___THREAD && !defined NOT_IN_libc - if (! SINGLE_THREAD_P) - { - pthread_descr self = thread_self(); - return LIBC_THREAD_GETMEM (self, p_errnop); - } -#endif - return &errno; -} -libc_hidden_def (__errno_location) diff --git a/linuxthreads/sysdeps/pthread/flockfile.c b/linuxthreads/sysdeps/pthread/flockfile.c deleted file mode 100644 index 918cb84f61..0000000000 --- a/linuxthreads/sysdeps/pthread/flockfile.c +++ /dev/null @@ -1,33 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <stdio.h> -#include <libio.h> -#include <bits/stdio-lock.h> - - -void -__flockfile (stream) - FILE *stream; -{ - _IO_lock_lock (*stream->_lock); -} -strong_alias (__flockfile, _IO_flockfile) -weak_alias (__flockfile, flockfile) diff --git a/linuxthreads/sysdeps/pthread/ftrylockfile.c b/linuxthreads/sysdeps/pthread/ftrylockfile.c deleted file mode 100644 index 21c1ea01ed..0000000000 --- a/linuxthreads/sysdeps/pthread/ftrylockfile.c +++ /dev/null @@ -1,33 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <pthread.h> -#include <stdio.h> -#include <bits/stdio-lock.h> - - -int -__ftrylockfile (stream) - FILE *stream; -{ - return _IO_lock_trylock (*stream->_lock); -} -strong_alias (__ftrylockfile, _IO_ftrylockfile) -weak_alias (__ftrylockfile, ftrylockfile) diff --git a/linuxthreads/sysdeps/pthread/funlockfile.c b/linuxthreads/sysdeps/pthread/funlockfile.c deleted file mode 100644 index f941fc9851..0000000000 --- a/linuxthreads/sysdeps/pthread/funlockfile.c +++ /dev/null @@ -1,33 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <stdio.h> -#include <libio.h> -#include <bits/stdio-lock.h> - - -void -__funlockfile (stream) - FILE *stream; -{ - _IO_lock_unlock (*stream->_lock); -} -strong_alias (__funlockfile, _IO_funlockfile) -weak_alias (__funlockfile, funlockfile) diff --git a/linuxthreads/sysdeps/pthread/getcpuclockid.c b/linuxthreads/sysdeps/pthread/getcpuclockid.c deleted file mode 100644 index 1c64e6c2be..0000000000 --- a/linuxthreads/sysdeps/pthread/getcpuclockid.c +++ /dev/null @@ -1,117 +0,0 @@ -/* pthread_getcpuclockid -- Get POSIX clockid_t for a pthread_t. Linux version - Copyright (C) 2000, 2001, 2004, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include <sys/time.h> -#include <time.h> -#include <internals.h> -#include <spinlock.h> -#include <kernel-features.h> -#include <kernel-posix-cpu-timers.h> - - -#if !(__ASSUME_POSIX_CPU_TIMERS > 0) -int __libc_missing_posix_cpu_timers attribute_hidden; -#endif -#if !(__ASSUME_POSIX_TIMERS > 0) -int __libc_missing_posix_timers attribute_hidden; -#endif - -int -pthread_getcpuclockid (pthread_t thread_id, clockid_t *clock_id) -{ -#ifdef __NR_clock_getres - pthread_handle handle = thread_handle(thread_id); - int pid; - - __pthread_lock (&handle->h_lock, NULL); - if (nonexisting_handle (handle, thread_id)) - { - __pthread_unlock (&handle->h_lock); - return ESRCH; - } - pid = handle->h_descr->p_pid; - __pthread_unlock (&handle->h_lock); - - /* The clockid_t value is a simple computation from the PID. - But we do a clock_getres call to validate it if we aren't - yet sure we have the kernel support. */ - - const clockid_t pidclock = MAKE_PROCESS_CPUCLOCK (pid, CPUCLOCK_SCHED); - -# if !(__ASSUME_POSIX_CPU_TIMERS > 0) -# if !(__ASSUME_POSIX_TIMERS > 0) - if (__libc_missing_posix_timers && !__libc_missing_posix_cpu_timers) - __libc_missing_posix_cpu_timers = 1; -# endif - if (!__libc_missing_posix_cpu_timers) - { - INTERNAL_SYSCALL_DECL (err); - int r = INTERNAL_SYSCALL (clock_getres, err, 2, pidclock, NULL); - if (!INTERNAL_SYSCALL_ERROR_P (r, err)) -# endif - { - *clock_id = pidclock; - return 0; - } - -# if !(__ASSUME_POSIX_CPU_TIMERS > 0) -# if !(__ASSUME_POSIX_TIMERS > 0) - if (INTERNAL_SYSCALL_ERRNO (r, err) == ENOSYS) - { - /* The kernel doesn't support these calls at all. */ - __libc_missing_posix_timers = 1; - __libc_missing_posix_cpu_timers = 1; - } - else -# endif - if (INTERNAL_SYSCALL_ERRNO (r, err) == EINVAL) - { - /* The kernel doesn't support these clocks at all. */ - __libc_missing_posix_cpu_timers = 1; - } - else - return INTERNAL_SYSCALL_ERRNO (r, err); - } -# endif -#endif - -#ifdef CLOCK_THREAD_CPUTIME_ID - /* We need to store the thread ID in the CLOCKID variable together - with a number identifying the clock. We reserve the low 3 bits - for the clock ID and the rest for the thread ID. This is - problematic if the thread ID is too large. But 29 bits should be - fine. - - If some day more clock IDs are needed the ID part can be - enlarged. The IDs are entirely internal. */ - if (2 * PTHREAD_THREADS_MAX - >= 1 << (8 * sizeof (*clock_id) - CLOCK_IDFIELD_SIZE)) - return ERANGE; - - /* Store the number. */ - *clock_id = CLOCK_THREAD_CPUTIME_ID | (thread_id << CLOCK_IDFIELD_SIZE); - - return 0; -#else - /* We don't have a timer for that. */ - return ENOENT; -#endif -} diff --git a/linuxthreads/sysdeps/pthread/herrno-loc.c b/linuxthreads/sysdeps/pthread/herrno-loc.c deleted file mode 100644 index fbc5576166..0000000000 --- a/linuxthreads/sysdeps/pthread/herrno-loc.c +++ /dev/null @@ -1,43 +0,0 @@ -/* Copyright (C) 1996, 97, 98, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <netdb.h> -#include <tls.h> -#include <linuxthreads/internals.h> -#include <sysdep-cancel.h> - -#if ! USE___THREAD -# undef h_errno -extern int h_errno; -#endif - -/* When threaded, h_errno may be a per-thread variable. */ -int * -weak_const_function -__h_errno_location (void) -{ -#if ! USE___THREAD - if (! SINGLE_THREAD_P) - { - pthread_descr self = thread_self(); - return LIBC_THREAD_GETMEM (self, p_h_errnop); - } -#endif - return &h_errno; -} -libc_hidden_def (__h_errno_location) diff --git a/linuxthreads/sysdeps/pthread/list.h b/linuxthreads/sysdeps/pthread/list.h deleted file mode 100644 index 43186a2d51..0000000000 --- a/linuxthreads/sysdeps/pthread/list.h +++ /dev/null @@ -1,114 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _LIST_H -#define _LIST_H 1 - -/* The definitions of this file are adopted from those which can be - found in the Linux kernel headers to enable people familiar with - the latter find their way in these sources as well. */ - - -/* Basic type for the double-link list. */ -typedef struct list_head -{ - struct list_head *next; - struct list_head *prev; -} list_t; - - -/* Define a variable with the head and tail of the list. */ -#define LIST_HEAD(name) \ - list_t name = { &(name), &(name) } - -/* Initialize a new list head. */ -#define INIT_LIST_HEAD(ptr) \ - (ptr)->next = (ptr)->prev = (ptr) - - -/* Add new element at the head of the list. */ -static inline void -list_add (list_t *newp, list_t *head) -{ - head->next->prev = newp; - newp->next = head->next; - newp->prev = head; - head->next = newp; -} - - -/* Add new element at the tail of the list. */ -static inline void -list_add_tail (list_t *newp, list_t *head) -{ - head->prev->next = newp; - newp->next = head; - newp->prev = head->prev; - head->prev = newp; -} - - -/* Remove element from list. */ -static inline void -list_del (list_t *elem) -{ - elem->next->prev = elem->prev; - elem->prev->next = elem->next; -} - - -/* Join two lists. */ -static inline void -list_splice (list_t *add, list_t *head) -{ - /* Do nothing if the list which gets added is empty. */ - if (add != add->next) - { - add->next->prev = head; - add->prev->next = head->next; - head->next->prev = add->prev; - head->next = add->next; - } -} - - -/* Get typed element from list at a given position. */ -#define list_entry(ptr, type, member) \ - ((type *) ((char *) (ptr) - (unsigned long) (&((type *) 0)->member))) - - - -/* Iterate forward over the elements of the list. */ -#define list_for_each(pos, head) \ - for (pos = (head)->next; pos != (head); pos = pos->next) - - -/* Iterate forward over the elements of the list. */ -#define list_for_each_prev(pos, head) \ - for (pos = (head)->prev; pos != (head); pos = pos->prev) - - -/* Iterate backwards over the elements list. The list elements can be - removed from the list while doing this. */ -#define list_for_each_prev_safe(pos, p, head) \ - for (pos = (head)->prev, p = pos->prev; \ - pos != (head); \ - pos = p, p = pos->prev) - -#endif /* list.h */ diff --git a/linuxthreads/sysdeps/pthread/malloc-machine.h b/linuxthreads/sysdeps/pthread/malloc-machine.h deleted file mode 100644 index 5191f8c779..0000000000 --- a/linuxthreads/sysdeps/pthread/malloc-machine.h +++ /dev/null @@ -1,67 +0,0 @@ -/* Basic platform-independent macro definitions for mutexes, - thread-specific data and parameters for malloc. - Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _MALLOC_MACHINE_H -#define _MALLOC_MACHINE_H - -#undef thread_atfork_static - -#include <atomic.h> -#include <bits/libc-lock.h> - -__libc_lock_define (typedef, mutex_t) - -#define mutex_init(m) \ - __libc_maybe_call2 (pthread_mutex_init, (m, NULL), (*(int *)(m) = 0)) -#define mutex_lock(m) \ - __libc_maybe_call2 (pthread_mutex_lock, (m), ((*(int *)(m) = 1), 0)) -#define mutex_trylock(m) \ - __libc_maybe_call2 (pthread_mutex_trylock, (m), \ - (*(int *)(m) ? 1 : ((*(int *)(m) = 1), 0))) -#define mutex_unlock(m) \ - __libc_maybe_call2 (pthread_mutex_unlock, (m), (*(int *)(m) = 0)) - -/* This is defined by newer gcc version unique for each module. */ -extern void *__dso_handle __attribute__ ((__weak__)); - -#include <fork.h> - -#ifdef SHARED -# define thread_atfork(prepare, parent, child) \ - __register_atfork (prepare, parent, child, __dso_handle) -#else -# define thread_atfork(prepare, parent, child) \ - __register_atfork (prepare, parent, child, \ - &__dso_handle == NULL ? NULL : __dso_handle) -#endif - -/* thread specific data for glibc */ - -#include <bits/libc-tsd.h> - -typedef int tsd_key_t[1]; /* no key data structure, libc magic does it */ -__libc_tsd_define (static, MALLOC) /* declaration/common definition */ -#define tsd_key_create(key, destr) ((void) (key)) -#define tsd_setspecific(key, data) __libc_tsd_set (MALLOC, (data)) -#define tsd_getspecific(key, vptr) ((vptr) = __libc_tsd_get (MALLOC)) - -#include <sysdeps/generic/malloc-machine.h> - -#endif /* !defined(_MALLOC_MACHINE_H) */ diff --git a/linuxthreads/sysdeps/pthread/posix-timer.h b/linuxthreads/sysdeps/pthread/posix-timer.h deleted file mode 100644 index 1b0a2b65e4..0000000000 --- a/linuxthreads/sysdeps/pthread/posix-timer.h +++ /dev/null @@ -1,204 +0,0 @@ -/* Definitions for POSIX timer implementation on top of LinuxThreads. - Copyright (C) 2000, 2002, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <limits.h> -#include <signal.h> - -/* Double linked list. */ -struct list_links -{ - struct list_links *next; - struct list_links *prev; -}; - - -/* Forward declaration. */ -struct timer_node; - - -/* Definitions for an internal thread of the POSIX timer implementation. */ -struct thread_node -{ - struct list_links links; - pthread_attr_t attr; - pthread_t id; - unsigned int exists; - struct list_links timer_queue; - pthread_cond_t cond; - struct timer_node *current_timer; - pthread_t captured; - clockid_t clock_id; -}; - - -/* Internal representation of a timer. */ -struct timer_node -{ - struct list_links links; - struct sigevent event; - clockid_t clock; - struct itimerspec value; - struct timespec expirytime; - pthread_attr_t attr; - unsigned int abstime; - unsigned int armed; - enum { - TIMER_FREE, TIMER_INUSE, TIMER_DELETED - } inuse; - struct thread_node *thread; - pid_t creator_pid; - int refcount; - int overrun_count; -}; - - -/* Static array with the structures for all the timers. */ -extern struct timer_node __timer_array[TIMER_MAX]; - -/* Global lock to protect operation on the lists. */ -extern pthread_mutex_t __timer_mutex; - -/* Variable to protext initialization. */ -extern pthread_once_t __timer_init_once_control; - -/* Nonzero if initialization of timer implementation failed. */ -extern int __timer_init_failed; - -/* Nodes for the threads used to deliver signals. */ -/* A distinct thread is used for each clock type. */ - -extern struct thread_node __timer_signal_thread_rclk; - - -/* Return pointer to timer structure corresponding to ID. */ -static inline struct timer_node * -timer_id2ptr (timer_t timerid) -{ - if (timerid >= 0 && timerid < TIMER_MAX) - return &__timer_array[timerid]; - - return NULL; -} - -/* Return ID of TIMER. */ -static inline int -timer_ptr2id (struct timer_node *timer) -{ - return timer - __timer_array; -} - -/* Check whether timer is valid; global mutex must be held. */ -static inline int -timer_valid (struct timer_node *timer) -{ - return timer && timer->inuse == TIMER_INUSE; -} - -/* Timer refcount functions; need global mutex. */ -extern void __timer_dealloc (struct timer_node *timer); - -static inline void -timer_addref (struct timer_node *timer) -{ - timer->refcount++; -} - -static inline void -timer_delref (struct timer_node *timer) -{ - if (--timer->refcount == 0) - __timer_dealloc (timer); -} - -/* Timespec helper routines. */ -static inline int -timespec_compare (const struct timespec *left, const struct timespec *right) -{ - if (left->tv_sec < right->tv_sec) - return -1; - if (left->tv_sec > right->tv_sec) - return 1; - - if (left->tv_nsec < right->tv_nsec) - return -1; - if (left->tv_nsec > right->tv_nsec) - return 1; - - return 0; -} - -static inline void -timespec_add (struct timespec *sum, const struct timespec *left, - const struct timespec *right) -{ - sum->tv_sec = left->tv_sec + right->tv_sec; - sum->tv_nsec = left->tv_nsec + right->tv_nsec; - - if (sum->tv_nsec >= 1000000000) - { - ++sum->tv_sec; - sum->tv_nsec -= 1000000000; - } -} - -static inline void -timespec_sub (struct timespec *diff, const struct timespec *left, - const struct timespec *right) -{ - diff->tv_sec = left->tv_sec - right->tv_sec; - diff->tv_nsec = left->tv_nsec - right->tv_nsec; - - if (diff->tv_nsec < 0) - { - --diff->tv_sec; - diff->tv_nsec += 1000000000; - } -} - - -/* We need one of the list functions in the other modules. */ -static inline void -list_unlink_ip (struct list_links *list) -{ - struct list_links *lnext = list->next, *lprev = list->prev; - - lnext->prev = lprev; - lprev->next = lnext; - - /* The suffix ip means idempotent; list_unlink_ip can be called - * two or more times on the same node. - */ - - list->next = list; - list->prev = list; -} - - -/* Functions in the helper file. */ -extern void __timer_mutex_cancel_handler (void *arg); -extern void __timer_init_once (void); -extern struct timer_node *__timer_alloc (void); -extern int __timer_thread_start (struct thread_node *thread); -extern struct thread_node *__timer_thread_find_matching (const pthread_attr_t *desired_attr, clockid_t); -extern struct thread_node *__timer_thread_alloc (const pthread_attr_t *desired_attr, clockid_t); -extern void __timer_thread_dealloc (struct thread_node *thread); -extern int __timer_thread_queue_timer (struct thread_node *thread, - struct timer_node *insert); -extern void __timer_thread_wakeup (struct thread_node *thread); diff --git a/linuxthreads/sysdeps/pthread/pt-initfini.c b/linuxthreads/sysdeps/pthread/pt-initfini.c deleted file mode 100644 index 1ccac2f6ef..0000000000 --- a/linuxthreads/sysdeps/pthread/pt-initfini.c +++ /dev/null @@ -1,124 +0,0 @@ -/* Special .init and .fini section support. Linuxthread version. - Copyright (C) 1995, 1996, 1997, 2000, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it - and/or modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - The GNU C Library is distributed in the hope that it will be - useful, but WITHOUT ANY WARRANTY; without even the implied warranty - of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* This file is compiled into assembly code which is then munged by a sed - script into two files: crti.s and crtn.s. - - * crti.s puts a function prologue at the beginning of the - .init and .fini sections and defines global symbols for - those addresses, so they can be called as functions. - - * crtn.s puts the corresponding function epilogues - in the .init and .fini sections. */ - -#include <stdlib.h> - -/* We use embedded asm for .section unconditionally, as this makes it - easier to insert the necessary directives into crtn.S. */ -#define SECTION(x) asm (".section " x ) - -/* Embed an #include to pull in the alignment and .end directives. */ -asm ("\n#include \"defs.h\""); - -/* The initial common code ends here. */ -asm ("\n/*@HEADER_ENDS*/"); - -/* To determine whether we need .end and .align: */ -asm ("\n/*@TESTS_BEGIN*/"); -extern void dummy (void (*foo) (void)); -void -dummy (void (*foo) (void)) -{ - if (foo) - (*foo) (); -} -asm ("\n/*@TESTS_END*/"); - -/* The beginning of _init: */ -asm ("\n/*@_init_PROLOG_BEGINS*/"); - -static void -call_initialize_minimal (void) -{ - extern void __pthread_initialize_minimal (void); - - __pthread_initialize_minimal (); -} - -SECTION (".init"); -extern void _init (void); -void -_init (void) -{ - /* The very first thing we must do is to set up the registers. */ - call_initialize_minimal (); - - asm ("ALIGN"); - asm("END_INIT"); - /* Now the epilog. */ - asm ("\n/*@_init_PROLOG_ENDS*/"); - asm ("\n/*@_init_EPILOG_BEGINS*/"); - SECTION(".init"); -} -asm ("END_INIT"); - -/* End of the _init epilog, beginning of the _fini prolog. */ -asm ("\n/*@_init_EPILOG_ENDS*/"); -asm ("\n/*@_fini_PROLOG_BEGINS*/"); - -SECTION (".fini"); -extern void _fini (void); -void -_fini (void) -{ - - /* End of the _fini prolog. */ - asm ("ALIGN"); - asm ("END_FINI"); - asm ("\n/*@_fini_PROLOG_ENDS*/"); - - { - /* Let GCC know that _fini is not a leaf function by having a dummy - function call here. We arrange for this call to be omitted from - either crt file. */ - extern void i_am_not_a_leaf (void); - i_am_not_a_leaf (); - } - - /* Beginning of the _fini epilog. */ - asm ("\n/*@_fini_EPILOG_BEGINS*/"); - SECTION (".fini"); -} -asm ("END_FINI"); - -/* End of the _fini epilog. Any further generated assembly (e.g. .ident) - is shared between both crt files. */ -asm ("\n/*@_fini_EPILOG_ENDS*/"); -asm ("\n/*@TRAILER_BEGINS*/"); - -/* End of file. */ diff --git a/linuxthreads/sysdeps/pthread/pthread-functions.h b/linuxthreads/sysdeps/pthread/pthread-functions.h deleted file mode 100644 index 43a328ae9c..0000000000 --- a/linuxthreads/sysdeps/pthread/pthread-functions.h +++ /dev/null @@ -1,96 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _PTHREAD_FUNCTIONS_H -#define _PTHREAD_FUNCTIONS_H 1 - -#include <pthread.h> -#include <setjmp.h> -#include <linuxthreads/descr.h> - -struct fork_block; - -/* Data type shared with libc. The libc uses it to pass on calls to - the thread functions. Wine pokes directly into this structure, - so if possible avoid breaking it and append new hooks to the end. */ -struct pthread_functions -{ - pid_t (*ptr_pthread_fork) (struct fork_block *); - int (*ptr_pthread_attr_destroy) (pthread_attr_t *); - int (*ptr___pthread_attr_init_2_0) (pthread_attr_t *); - int (*ptr___pthread_attr_init_2_1) (pthread_attr_t *); - int (*ptr_pthread_attr_getdetachstate) (const pthread_attr_t *, int *); - int (*ptr_pthread_attr_setdetachstate) (pthread_attr_t *, int); - int (*ptr_pthread_attr_getinheritsched) (const pthread_attr_t *, int *); - int (*ptr_pthread_attr_setinheritsched) (pthread_attr_t *, int); - int (*ptr_pthread_attr_getschedparam) (const pthread_attr_t *, - struct sched_param *); - int (*ptr_pthread_attr_setschedparam) (pthread_attr_t *, - const struct sched_param *); - int (*ptr_pthread_attr_getschedpolicy) (const pthread_attr_t *, int *); - int (*ptr_pthread_attr_setschedpolicy) (pthread_attr_t *, int); - int (*ptr_pthread_attr_getscope) (const pthread_attr_t *, int *); - int (*ptr_pthread_attr_setscope) (pthread_attr_t *, int); - int (*ptr_pthread_condattr_destroy) (pthread_condattr_t *); - int (*ptr_pthread_condattr_init) (pthread_condattr_t *); - int (*ptr___pthread_cond_broadcast) (pthread_cond_t *); - int (*ptr___pthread_cond_destroy) (pthread_cond_t *); - int (*ptr___pthread_cond_init) (pthread_cond_t *, - const pthread_condattr_t *); - int (*ptr___pthread_cond_signal) (pthread_cond_t *); - int (*ptr___pthread_cond_wait) (pthread_cond_t *, pthread_mutex_t *); - int (*ptr_pthread_equal) (pthread_t, pthread_t); - void (*ptr___pthread_exit) (void *); - int (*ptr_pthread_getschedparam) (pthread_t, int *, struct sched_param *); - int (*ptr_pthread_setschedparam) (pthread_t, int, - const struct sched_param *); - int (*ptr_pthread_mutex_destroy) (pthread_mutex_t *); - int (*ptr_pthread_mutex_init) (pthread_mutex_t *, - const pthread_mutexattr_t *); - int (*ptr_pthread_mutex_lock) (pthread_mutex_t *); - int (*ptr_pthread_mutex_trylock) (pthread_mutex_t *); - int (*ptr_pthread_mutex_unlock) (pthread_mutex_t *); - pthread_t (*ptr_pthread_self) (void); - int (*ptr_pthread_setcancelstate) (int, int *); - int (*ptr_pthread_setcanceltype) (int, int *); - void (*ptr_pthread_do_exit) (void *retval, char *currentframe); - void (*ptr_pthread_cleanup_upto) (__jmp_buf target, - char *targetframe); - pthread_descr (*ptr_pthread_thread_self) (void); - int (*ptr_pthread_internal_tsd_set) (int key, const void *pointer); - void * (*ptr_pthread_internal_tsd_get) (int key); - void ** __attribute__ ((__const__)) - (*ptr_pthread_internal_tsd_address) (int key); - int (*ptr_pthread_sigaction) (int sig, const struct sigaction * act, - struct sigaction *oact); - int (*ptr_pthread_sigwait) (const sigset_t *set, int *sig); - int (*ptr_pthread_raise) (int sig); - int (*ptr___pthread_cond_timedwait) (pthread_cond_t *, pthread_mutex_t *, - const struct timespec *); - void (*ptr__pthread_cleanup_push) (struct _pthread_cleanup_buffer * buffer, - void (*routine)(void *), void * arg); - - void (*ptr__pthread_cleanup_pop) (struct _pthread_cleanup_buffer * buffer, - int execute); -}; - -/* Variable in libc.so. */ -extern struct pthread_functions __libc_pthread_functions attribute_hidden; - -#endif /* pthread-functions.h */ diff --git a/linuxthreads/sysdeps/pthread/pthread.h b/linuxthreads/sysdeps/pthread/pthread.h deleted file mode 100644 index 86c7ff7391..0000000000 --- a/linuxthreads/sysdeps/pthread/pthread.h +++ /dev/null @@ -1,686 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -#ifndef _PTHREAD_H -#define _PTHREAD_H 1 - -#include <features.h> - -#include <sched.h> -#include <time.h> - -#define __need_sigset_t -#include <signal.h> -#include <bits/pthreadtypes.h> -#include <bits/initspin.h> - - -__BEGIN_DECLS - -/* Initializers. */ - -#define PTHREAD_MUTEX_INITIALIZER \ - {0, 0, 0, PTHREAD_MUTEX_TIMED_NP, __LOCK_INITIALIZER} -#ifdef __USE_GNU -# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \ - {0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, __LOCK_INITIALIZER} -# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \ - {0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, __LOCK_INITIALIZER} -# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \ - {0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, __LOCK_INITIALIZER} -#endif - -#define PTHREAD_COND_INITIALIZER {__LOCK_INITIALIZER, 0, "", 0} - -#if defined __USE_UNIX98 || defined __USE_XOPEN2K -# define PTHREAD_RWLOCK_INITIALIZER \ - { __LOCK_INITIALIZER, 0, NULL, NULL, NULL, \ - PTHREAD_RWLOCK_DEFAULT_NP, PTHREAD_PROCESS_PRIVATE } -#endif -#ifdef __USE_GNU -# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ - { __LOCK_INITIALIZER, 0, NULL, NULL, NULL, \ - PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, PTHREAD_PROCESS_PRIVATE } -#endif - -/* Values for attributes. */ - -enum -{ - PTHREAD_CREATE_JOINABLE, -#define PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_JOINABLE - PTHREAD_CREATE_DETACHED -#define PTHREAD_CREATE_DETACHED PTHREAD_CREATE_DETACHED -}; - -enum -{ - PTHREAD_INHERIT_SCHED, -#define PTHREAD_INHERIT_SCHED PTHREAD_INHERIT_SCHED - PTHREAD_EXPLICIT_SCHED -#define PTHREAD_EXPLICIT_SCHED PTHREAD_EXPLICIT_SCHED -}; - -enum -{ - PTHREAD_SCOPE_SYSTEM, -#define PTHREAD_SCOPE_SYSTEM PTHREAD_SCOPE_SYSTEM - PTHREAD_SCOPE_PROCESS -#define PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_PROCESS -}; - -enum -{ - PTHREAD_MUTEX_TIMED_NP, - PTHREAD_MUTEX_RECURSIVE_NP, - PTHREAD_MUTEX_ERRORCHECK_NP, - PTHREAD_MUTEX_ADAPTIVE_NP -#ifdef __USE_UNIX98 - , - PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_TIMED_NP, - PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP, - PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP, - PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL -#endif -#ifdef __USE_GNU - /* For compatibility. */ - , PTHREAD_MUTEX_FAST_NP = PTHREAD_MUTEX_ADAPTIVE_NP -#endif -}; - -enum -{ - PTHREAD_PROCESS_PRIVATE, -#define PTHREAD_PROCESS_PRIVATE PTHREAD_PROCESS_PRIVATE - PTHREAD_PROCESS_SHARED -#define PTHREAD_PROCESS_SHARED PTHREAD_PROCESS_SHARED -}; - -#if defined __USE_UNIX98 || defined __USE_XOPEN2K -enum -{ - PTHREAD_RWLOCK_PREFER_READER_NP, - PTHREAD_RWLOCK_PREFER_WRITER_NP, - PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, - PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_WRITER_NP -}; -#endif /* Unix98 */ - -#define PTHREAD_ONCE_INIT 0 - -/* Special constants */ - -#ifdef __USE_XOPEN2K -/* -1 is distinct from 0 and all errno constants */ -# define PTHREAD_BARRIER_SERIAL_THREAD -1 -#endif - -/* Cleanup buffers */ - -struct _pthread_cleanup_buffer -{ - void (*__routine) (void *); /* Function to call. */ - void *__arg; /* Its argument. */ - int __canceltype; /* Saved cancellation type. */ - struct _pthread_cleanup_buffer *__prev; /* Chaining of cleanup functions. */ -}; - -/* Cancellation */ - -enum -{ - PTHREAD_CANCEL_ENABLE, -#define PTHREAD_CANCEL_ENABLE PTHREAD_CANCEL_ENABLE - PTHREAD_CANCEL_DISABLE -#define PTHREAD_CANCEL_DISABLE PTHREAD_CANCEL_DISABLE -}; -enum -{ - PTHREAD_CANCEL_DEFERRED, -#define PTHREAD_CANCEL_DEFERRED PTHREAD_CANCEL_DEFERRED - PTHREAD_CANCEL_ASYNCHRONOUS -#define PTHREAD_CANCEL_ASYNCHRONOUS PTHREAD_CANCEL_ASYNCHRONOUS -}; -#define PTHREAD_CANCELED ((void *) -1) - - -/* Function for handling threads. */ - -/* Create a thread with given attributes ATTR (or default attributes - if ATTR is NULL), and call function START_ROUTINE with given - arguments ARG. */ -extern int pthread_create (pthread_t *__restrict __threadp, - __const pthread_attr_t *__restrict __attr, - void *(*__start_routine) (void *), - void *__restrict __arg) __THROW; - -/* Obtain the identifier of the current thread. */ -extern pthread_t pthread_self (void) __THROW; - -/* Compare two thread identifiers. */ -extern int pthread_equal (pthread_t __thread1, pthread_t __thread2) __THROW; - -/* Terminate calling thread. */ -extern void pthread_exit (void *__retval) __attribute__ ((__noreturn__)); - -/* Make calling thread wait for termination of the thread TH. The - exit status of the thread is stored in *THREAD_RETURN, if THREAD_RETURN - is not NULL. */ -extern int pthread_join (pthread_t __th, void **__thread_return); - -/* Indicate that the thread TH is never to be joined with PTHREAD_JOIN. - The resources of TH will therefore be freed immediately when it - terminates, instead of waiting for another thread to perform PTHREAD_JOIN - on it. */ -extern int pthread_detach (pthread_t __th) __THROW; - - -/* Functions for handling attributes. */ - -/* Initialize thread attribute *ATTR with default attributes - (detachstate is PTHREAD_JOINABLE, scheduling policy is SCHED_OTHER, - no user-provided stack). */ -extern int pthread_attr_init (pthread_attr_t *__attr) __THROW; - -/* Destroy thread attribute *ATTR. */ -extern int pthread_attr_destroy (pthread_attr_t *__attr) __THROW; - -/* Set the `detachstate' attribute in *ATTR according to DETACHSTATE. */ -extern int pthread_attr_setdetachstate (pthread_attr_t *__attr, - int __detachstate) __THROW; - -/* Return in *DETACHSTATE the `detachstate' attribute in *ATTR. */ -extern int pthread_attr_getdetachstate (__const pthread_attr_t *__attr, - int *__detachstate) __THROW; - -/* Set scheduling parameters (priority, etc) in *ATTR according to PARAM. */ -extern int pthread_attr_setschedparam (pthread_attr_t *__restrict __attr, - __const struct sched_param *__restrict - __param) __THROW; - -/* Return in *PARAM the scheduling parameters of *ATTR. */ -extern int pthread_attr_getschedparam (__const pthread_attr_t *__restrict - __attr, - struct sched_param *__restrict __param) - __THROW; - -/* Set scheduling policy in *ATTR according to POLICY. */ -extern int pthread_attr_setschedpolicy (pthread_attr_t *__attr, int __policy) - __THROW; - -/* Return in *POLICY the scheduling policy of *ATTR. */ -extern int pthread_attr_getschedpolicy (__const pthread_attr_t *__restrict - __attr, int *__restrict __policy) - __THROW; - -/* Set scheduling inheritance mode in *ATTR according to INHERIT. */ -extern int pthread_attr_setinheritsched (pthread_attr_t *__attr, - int __inherit) __THROW; - -/* Return in *INHERIT the scheduling inheritance mode of *ATTR. */ -extern int pthread_attr_getinheritsched (__const pthread_attr_t *__restrict - __attr, int *__restrict __inherit) - __THROW; - -/* Set scheduling contention scope in *ATTR according to SCOPE. */ -extern int pthread_attr_setscope (pthread_attr_t *__attr, int __scope) - __THROW; - -/* Return in *SCOPE the scheduling contention scope of *ATTR. */ -extern int pthread_attr_getscope (__const pthread_attr_t *__restrict __attr, - int *__restrict __scope) __THROW; - -#ifdef __USE_UNIX98 -/* Set the size of the guard area at the bottom of the thread. */ -extern int pthread_attr_setguardsize (pthread_attr_t *__attr, - size_t __guardsize) __THROW; - -/* Get the size of the guard area at the bottom of the thread. */ -extern int pthread_attr_getguardsize (__const pthread_attr_t *__restrict - __attr, size_t *__restrict __guardsize) - __THROW; -#endif - -/* Set the starting address of the stack of the thread to be created. - Depending on whether the stack grows up or down the value must either - be higher or lower than all the address in the memory block. The - minimal size of the block must be PTHREAD_STACK_MIN. */ -extern int pthread_attr_setstackaddr (pthread_attr_t *__attr, - void *__stackaddr) __THROW; - -/* Return the previously set address for the stack. */ -extern int pthread_attr_getstackaddr (__const pthread_attr_t *__restrict - __attr, void **__restrict __stackaddr) - __THROW; - -#ifdef __USE_XOPEN2K -/* The following two interfaces are intended to replace the last two. They - require setting the address as well as the size since only setting the - address will make the implementation on some architectures impossible. */ -extern int pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr, - size_t __stacksize) __THROW; - -/* Return the previously set address for the stack. */ -extern int pthread_attr_getstack (__const pthread_attr_t *__restrict __attr, - void **__restrict __stackaddr, - size_t *__restrict __stacksize) __THROW; -#endif - -/* Add information about the minimum stack size needed for the thread - to be started. This size must never be less than PTHREAD_STACK_MIN - and must also not exceed the system limits. */ -extern int pthread_attr_setstacksize (pthread_attr_t *__attr, - size_t __stacksize) __THROW; - -/* Return the currently used minimal stack size. */ -extern int pthread_attr_getstacksize (__const pthread_attr_t *__restrict - __attr, size_t *__restrict __stacksize) - __THROW; - -#ifdef __USE_GNU -/* Initialize thread attribute *ATTR with attributes corresponding to the - already running thread TH. It shall be called on unitialized ATTR - and destroyed with pthread_attr_destroy when no longer needed. */ -extern int pthread_getattr_np (pthread_t __th, pthread_attr_t *__attr) __THROW; -#endif - -/* Functions for scheduling control. */ - -/* Set the scheduling parameters for TARGET_THREAD according to POLICY - and *PARAM. */ -extern int pthread_setschedparam (pthread_t __target_thread, int __policy, - __const struct sched_param *__param) - __THROW; - -/* Return in *POLICY and *PARAM the scheduling parameters for TARGET_THREAD. */ -extern int pthread_getschedparam (pthread_t __target_thread, - int *__restrict __policy, - struct sched_param *__restrict __param) - __THROW; - -#ifdef __USE_UNIX98 -/* Determine level of concurrency. */ -extern int pthread_getconcurrency (void) __THROW; - -/* Set new concurrency level to LEVEL. */ -extern int pthread_setconcurrency (int __level) __THROW; -#endif - -#ifdef __USE_GNU -/* Yield the processor to another thread or process. - This function is similar to the POSIX `sched_yield' function but - might be differently implemented in the case of a m-on-n thread - implementation. */ -extern int pthread_yield (void) __THROW; -#endif - -/* Functions for mutex handling. */ - -/* Initialize MUTEX using attributes in *MUTEX_ATTR, or use the - default values if later is NULL. */ -extern int pthread_mutex_init (pthread_mutex_t *__restrict __mutex, - __const pthread_mutexattr_t *__restrict - __mutex_attr) __THROW; - -/* Destroy MUTEX. */ -extern int pthread_mutex_destroy (pthread_mutex_t *__mutex) __THROW; - -/* Try to lock MUTEX. */ -extern int pthread_mutex_trylock (pthread_mutex_t *__mutex) __THROW; - -/* Wait until lock for MUTEX becomes available and lock it. */ -extern int pthread_mutex_lock (pthread_mutex_t *__mutex) __THROW; - -#ifdef __USE_XOPEN2K -/* Wait until lock becomes available, or specified time passes. */ -extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex, - __const struct timespec *__restrict - __abstime) __THROW; -#endif - -/* Unlock MUTEX. */ -extern int pthread_mutex_unlock (pthread_mutex_t *__mutex) __THROW; - - -/* Functions for handling mutex attributes. */ - -/* Initialize mutex attribute object ATTR with default attributes - (kind is PTHREAD_MUTEX_TIMED_NP). */ -extern int pthread_mutexattr_init (pthread_mutexattr_t *__attr) __THROW; - -/* Destroy mutex attribute object ATTR. */ -extern int pthread_mutexattr_destroy (pthread_mutexattr_t *__attr) __THROW; - -/* Get the process-shared flag of the mutex attribute ATTR. */ -extern int pthread_mutexattr_getpshared (__const pthread_mutexattr_t * - __restrict __attr, - int *__restrict __pshared) __THROW; - -/* Set the process-shared flag of the mutex attribute ATTR. */ -extern int pthread_mutexattr_setpshared (pthread_mutexattr_t *__attr, - int __pshared) __THROW; - -#ifdef __USE_UNIX98 -/* Set the mutex kind attribute in *ATTR to KIND (either PTHREAD_MUTEX_NORMAL, - PTHREAD_MUTEX_RECURSIVE, PTHREAD_MUTEX_ERRORCHECK, or - PTHREAD_MUTEX_DEFAULT). */ -extern int pthread_mutexattr_settype (pthread_mutexattr_t *__attr, int __kind) - __THROW; - -/* Return in *KIND the mutex kind attribute in *ATTR. */ -extern int pthread_mutexattr_gettype (__const pthread_mutexattr_t *__restrict - __attr, int *__restrict __kind) __THROW; -#endif - - -/* Functions for handling conditional variables. */ - -/* Initialize condition variable COND using attributes ATTR, or use - the default values if later is NULL. */ -extern int pthread_cond_init (pthread_cond_t *__restrict __cond, - __const pthread_condattr_t *__restrict - __cond_attr) __THROW; - -/* Destroy condition variable COND. */ -extern int pthread_cond_destroy (pthread_cond_t *__cond) __THROW; - -/* Wake up one thread waiting for condition variable COND. */ -extern int pthread_cond_signal (pthread_cond_t *__cond) __THROW; - -/* Wake up all threads waiting for condition variables COND. */ -extern int pthread_cond_broadcast (pthread_cond_t *__cond) __THROW; - -/* Wait for condition variable COND to be signaled or broadcast. - MUTEX is assumed to be locked before. */ -extern int pthread_cond_wait (pthread_cond_t *__restrict __cond, - pthread_mutex_t *__restrict __mutex); - -/* Wait for condition variable COND to be signaled or broadcast until - ABSTIME. MUTEX is assumed to be locked before. ABSTIME is an - absolute time specification; zero is the beginning of the epoch - (00:00:00 GMT, January 1, 1970). */ -extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond, - pthread_mutex_t *__restrict __mutex, - __const struct timespec *__restrict - __abstime); - -/* Functions for handling condition variable attributes. */ - -/* Initialize condition variable attribute ATTR. */ -extern int pthread_condattr_init (pthread_condattr_t *__attr) __THROW; - -/* Destroy condition variable attribute ATTR. */ -extern int pthread_condattr_destroy (pthread_condattr_t *__attr) __THROW; - -/* Get the process-shared flag of the condition variable attribute ATTR. */ -extern int pthread_condattr_getpshared (__const pthread_condattr_t * - __restrict __attr, - int *__restrict __pshared) __THROW; - -/* Set the process-shared flag of the condition variable attribute ATTR. */ -extern int pthread_condattr_setpshared (pthread_condattr_t *__attr, - int __pshared) __THROW; - - -#if defined __USE_UNIX98 || defined __USE_XOPEN2K -/* Functions for handling read-write locks. */ - -/* Initialize read-write lock RWLOCK using attributes ATTR, or use - the default values if later is NULL. */ -extern int pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock, - __const pthread_rwlockattr_t *__restrict - __attr) __THROW; - -/* Destroy read-write lock RWLOCK. */ -extern int pthread_rwlock_destroy (pthread_rwlock_t *__rwlock) __THROW; - -/* Acquire read lock for RWLOCK. */ -extern int pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock) __THROW; - -/* Try to acquire read lock for RWLOCK. */ -extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock) __THROW; - -# ifdef __USE_XOPEN2K -/* Try to acquire read lock for RWLOCK or return after specfied time. */ -extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock, - __const struct timespec *__restrict - __abstime) __THROW; -# endif - -/* Acquire write lock for RWLOCK. */ -extern int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock) __THROW; - -/* Try to acquire write lock for RWLOCK. */ -extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock) __THROW; - -# ifdef __USE_XOPEN2K -/* Try to acquire write lock for RWLOCK or return after specfied time. */ -extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock, - __const struct timespec *__restrict - __abstime) __THROW; -# endif - -/* Unlock RWLOCK. */ -extern int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock) __THROW; - - -/* Functions for handling read-write lock attributes. */ - -/* Initialize attribute object ATTR with default values. */ -extern int pthread_rwlockattr_init (pthread_rwlockattr_t *__attr) __THROW; - -/* Destroy attribute object ATTR. */ -extern int pthread_rwlockattr_destroy (pthread_rwlockattr_t *__attr) __THROW; - -/* Return current setting of process-shared attribute of ATTR in PSHARED. */ -extern int pthread_rwlockattr_getpshared (__const pthread_rwlockattr_t * - __restrict __attr, - int *__restrict __pshared) __THROW; - -/* Set process-shared attribute of ATTR to PSHARED. */ -extern int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *__attr, - int __pshared) __THROW; - -/* Return current setting of reader/writer preference. */ -extern int pthread_rwlockattr_getkind_np (__const pthread_rwlockattr_t *__attr, - int *__pref) __THROW; - -/* Set reader/write preference. */ -extern int pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *__attr, - int __pref) __THROW; -#endif - -#ifdef __USE_XOPEN2K -/* The IEEE Std. 1003.1j-2000 introduces functions to implement - spinlocks. */ - -/* Initialize the spinlock LOCK. If PSHARED is nonzero the spinlock can - be shared between different processes. */ -extern int pthread_spin_init (pthread_spinlock_t *__lock, int __pshared) - __THROW; - -/* Destroy the spinlock LOCK. */ -extern int pthread_spin_destroy (pthread_spinlock_t *__lock) __THROW; - -/* Wait until spinlock LOCK is retrieved. */ -extern int pthread_spin_lock (pthread_spinlock_t *__lock) __THROW; - -/* Try to lock spinlock LOCK. */ -extern int pthread_spin_trylock (pthread_spinlock_t *__lock) __THROW; - -/* Release spinlock LOCK. */ -extern int pthread_spin_unlock (pthread_spinlock_t *__lock) __THROW; - - -/* Barriers are a also a new feature in 1003.1j-2000. */ - -extern int pthread_barrier_init (pthread_barrier_t *__restrict __barrier, - __const pthread_barrierattr_t *__restrict - __attr, unsigned int __count) __THROW; - -extern int pthread_barrier_destroy (pthread_barrier_t *__barrier) __THROW; - -extern int pthread_barrierattr_init (pthread_barrierattr_t *__attr) __THROW; - -extern int pthread_barrierattr_destroy (pthread_barrierattr_t *__attr) __THROW; - -extern int pthread_barrierattr_getpshared (__const pthread_barrierattr_t * - __restrict __attr, - int *__restrict __pshared) __THROW; - -extern int pthread_barrierattr_setpshared (pthread_barrierattr_t *__attr, - int __pshared) __THROW; - -extern int pthread_barrier_wait (pthread_barrier_t *__barrier) __THROW; -#endif - - -/* Functions for handling thread-specific data. */ - -/* Create a key value identifying a location in the thread-specific - data area. Each thread maintains a distinct thread-specific data - area. DESTR_FUNCTION, if non-NULL, is called with the value - associated to that key when the key is destroyed. - DESTR_FUNCTION is not called if the value associated is NULL when - the key is destroyed. */ -extern int pthread_key_create (pthread_key_t *__key, - void (*__destr_function) (void *)) __THROW; - -/* Destroy KEY. */ -extern int pthread_key_delete (pthread_key_t __key) __THROW; - -/* Store POINTER in the thread-specific data slot identified by KEY. */ -extern int pthread_setspecific (pthread_key_t __key, - __const void *__pointer) __THROW; - -/* Return current value of the thread-specific data slot identified by KEY. */ -extern void *pthread_getspecific (pthread_key_t __key) __THROW; - - -/* Functions for handling initialization. */ - -/* Guarantee that the initialization function INIT_ROUTINE will be called - only once, even if pthread_once is executed several times with the - same ONCE_CONTROL argument. ONCE_CONTROL must point to a static or - extern variable initialized to PTHREAD_ONCE_INIT. - - The initialization functions might throw exception which is why - this function is not marked with __THROW. */ -extern int pthread_once (pthread_once_t *__once_control, - void (*__init_routine) (void)); - - -/* Functions for handling cancellation. */ - -/* Set cancelability state of current thread to STATE, returning old - state in *OLDSTATE if OLDSTATE is not NULL. */ -extern int pthread_setcancelstate (int __state, int *__oldstate); - -/* Set cancellation state of current thread to TYPE, returning the old - type in *OLDTYPE if OLDTYPE is not NULL. */ -extern int pthread_setcanceltype (int __type, int *__oldtype); - -/* Cancel THREAD immediately or at the next possibility. */ -extern int pthread_cancel (pthread_t __cancelthread); - -/* Test for pending cancellation for the current thread and terminate - the thread as per pthread_exit(PTHREAD_CANCELED) if it has been - cancelled. */ -extern void pthread_testcancel (void); - - -/* Install a cleanup handler: ROUTINE will be called with arguments ARG - when the thread is cancelled or calls pthread_exit. ROUTINE will also - be called with arguments ARG when the matching pthread_cleanup_pop - is executed with non-zero EXECUTE argument. - pthread_cleanup_push and pthread_cleanup_pop are macros and must always - be used in matching pairs at the same nesting level of braces. */ - -#define pthread_cleanup_push(routine,arg) \ - { struct _pthread_cleanup_buffer _buffer; \ - _pthread_cleanup_push (&_buffer, (routine), (arg)); - -extern void _pthread_cleanup_push (struct _pthread_cleanup_buffer *__buffer, - void (*__routine) (void *), - void *__arg) __THROW; - -/* Remove a cleanup handler installed by the matching pthread_cleanup_push. - If EXECUTE is non-zero, the handler function is called. */ - -#define pthread_cleanup_pop(execute) \ - _pthread_cleanup_pop (&_buffer, (execute)); } - -extern void _pthread_cleanup_pop (struct _pthread_cleanup_buffer *__buffer, - int __execute) __THROW; - -/* Install a cleanup handler as pthread_cleanup_push does, but also - saves the current cancellation type and set it to deferred cancellation. */ - -#ifdef __USE_GNU -# define pthread_cleanup_push_defer_np(routine,arg) \ - { struct _pthread_cleanup_buffer _buffer; \ - _pthread_cleanup_push_defer (&_buffer, (routine), (arg)); - -extern void _pthread_cleanup_push_defer (struct _pthread_cleanup_buffer *__buffer, - void (*__routine) (void *), - void *__arg) __THROW; - -/* Remove a cleanup handler as pthread_cleanup_pop does, but also - restores the cancellation type that was in effect when the matching - pthread_cleanup_push_defer was called. */ - -# define pthread_cleanup_pop_restore_np(execute) \ - _pthread_cleanup_pop_restore (&_buffer, (execute)); } - -extern void _pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer *__buffer, - int __execute) __THROW; -#endif - - -#ifdef __USE_XOPEN2K -/* Get ID of CPU-time clock for thread THREAD_ID. */ -extern int pthread_getcpuclockid (pthread_t __thread_id, - __clockid_t *__clock_id) __THROW; -#endif - - -/* Functions for handling signals. */ -#include <bits/sigthread.h> - - -/* Functions for handling process creation and process execution. */ - -/* Install handlers to be called when a new process is created with FORK. - The PREPARE handler is called in the parent process just before performing - FORK. The PARENT handler is called in the parent process just after FORK. - The CHILD handler is called in the child process. Each of the three - handlers can be NULL, meaning that no handler needs to be called at that - point. - PTHREAD_ATFORK can be called several times, in which case the PREPARE - handlers are called in LIFO order (last added with PTHREAD_ATFORK, - first called before FORK), and the PARENT and CHILD handlers are called - in FIFO (first added, first called). */ - -extern int pthread_atfork (void (*__prepare) (void), - void (*__parent) (void), - void (*__child) (void)) __THROW; - -/* Terminate all threads in the program except the calling process. - Should be called just before invoking one of the exec*() functions. */ - -extern void pthread_kill_other_threads_np (void) __THROW; - -__END_DECLS - -#endif /* pthread.h */ diff --git a/linuxthreads/sysdeps/pthread/ptlongjmp.c b/linuxthreads/sysdeps/pthread/ptlongjmp.c deleted file mode 100644 index a2a56b8d9c..0000000000 --- a/linuxthreads/sysdeps/pthread/ptlongjmp.c +++ /dev/null @@ -1,39 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1998 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Redefine siglongjmp and longjmp so that they interact correctly - with cleanup handlers */ - -#include <setjmp.h> -#include "pthread.h" -#include "internals.h" - -/* These functions are not declared anywhere since they shouldn't be - used at another place but here. */ -extern void __libc_siglongjmp (sigjmp_buf env, int val) - __attribute__ ((noreturn)); -extern void __libc_longjmp (sigjmp_buf env, int val) - __attribute__ ((noreturn)); - -#ifdef SHARED -void siglongjmp (sigjmp_buf env, int val) -{ - __libc_siglongjmp (env, val); -} - -void longjmp (jmp_buf env, int val) -{ - __libc_longjmp (env, val); -} -#endif diff --git a/linuxthreads/sysdeps/pthread/res-state.c b/linuxthreads/sysdeps/pthread/res-state.c deleted file mode 100644 index 016e20b4ef..0000000000 --- a/linuxthreads/sysdeps/pthread/res-state.c +++ /dev/null @@ -1,47 +0,0 @@ -/* Copyright (C) 1996, 97, 98, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <resolv.h> -#include <tls.h> -#include <linuxthreads/internals.h> -#include <sysdep-cancel.h> - -#if ! USE___THREAD -# undef _res -extern struct __res_state _res; -#endif - -/* When threaded, _res may be a per-thread variable. */ -struct __res_state * -#if ! USE___THREAD -weak_const_function -#endif -__res_state (void) -{ -#if ! USE___THREAD - if (! SINGLE_THREAD_P) - { - pthread_descr self = thread_self(); - return LIBC_THREAD_GETMEM (self, p_resp); - } - return &_res; -#else - return __resp; -#endif -} -libc_hidden_def (__res_state) diff --git a/linuxthreads/sysdeps/pthread/semaphore.h b/linuxthreads/sysdeps/pthread/semaphore.h deleted file mode 100644 index 8793768a8e..0000000000 --- a/linuxthreads/sysdeps/pthread/semaphore.h +++ /dev/null @@ -1 +0,0 @@ -#include <linuxthreads/semaphore.h> diff --git a/linuxthreads/sysdeps/pthread/sigaction.c b/linuxthreads/sysdeps/pthread/sigaction.c deleted file mode 100644 index f4e20790d9..0000000000 --- a/linuxthreads/sysdeps/pthread/sigaction.c +++ /dev/null @@ -1,55 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* This is tricky. GCC doesn't like #include_next in the primary - source file and even if it did, the first #include_next is this - exact file anyway. */ -#ifndef LIBC_SIGACTION - -# include <bits/libc-lock.h> - -# define LIBC_SIGACTION 1 - -# include <linuxthreads/sysdeps/pthread/sigaction.c> - -# ifndef NOT_IN_libc -# ifndef SHARED -weak_extern (__pthread_sigaction) -# endif - -int -__sigaction (sig, act, oact) - int sig; - const struct sigaction *act; - struct sigaction *oact; -{ - return __libc_maybe_call2 (pthread_sigaction, (sig, act, oact), - __libc_sigaction (sig, act, oact)); -} -# else -weak_alias (__libc_sigaction, __sigaction) -# endif -libc_hidden_weak (__sigaction) -weak_alias (__sigaction, sigaction) - -#else - -# include_next <sigaction.c> - -#endif /* LIBC_SIGACTION */ diff --git a/linuxthreads/sysdeps/pthread/tcb-offsets.h b/linuxthreads/sysdeps/pthread/tcb-offsets.h deleted file mode 100644 index 3fe13702ea..0000000000 --- a/linuxthreads/sysdeps/pthread/tcb-offsets.h +++ /dev/null @@ -1 +0,0 @@ -/* This is overridden by generated tcb-offsets.h on arches which need it. */ diff --git a/linuxthreads/sysdeps/pthread/timer_create.c b/linuxthreads/sysdeps/pthread/timer_create.c deleted file mode 100644 index 7f7e886c83..0000000000 --- a/linuxthreads/sysdeps/pthread/timer_create.c +++ /dev/null @@ -1,170 +0,0 @@ -/* Copyright (C) 2000, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <signal.h> -#include <pthread.h> -#include <time.h> -#include <unistd.h> - -#include "posix-timer.h" - - -/* Create new per-process timer using CLOCK. */ -int -timer_create (clock_id, evp, timerid) - clockid_t clock_id; - struct sigevent *evp; - timer_t *timerid; -{ - int retval = -1; - struct timer_node *newtimer = NULL; - struct thread_node *thread = NULL; - - if (0 -#ifdef _POSIX_CPUTIME - || clock_id == CLOCK_PROCESS_CPUTIME_ID -#endif -#ifdef _POSIX_THREAD_CPUTIME - || clock_id == CLOCK_THREAD_CPUTIME_ID -#endif - ) - { - /* We don't allow timers for CPU clocks. At least not in the - moment. */ - __set_errno (ENOTSUP); - return -1; - } - - if (clock_id != CLOCK_REALTIME) - { - __set_errno (EINVAL); - return -1; - } - - pthread_once (&__timer_init_once_control, __timer_init_once); - - if (__timer_init_failed) - { - __set_errno (ENOMEM); - return -1; - } - - pthread_mutex_lock (&__timer_mutex); - - newtimer = __timer_alloc (); - if (__builtin_expect (newtimer == NULL, 0)) - { - __set_errno (EAGAIN); - goto unlock_bail; - } - - if (evp != NULL) - newtimer->event = *evp; - else - { - newtimer->event.sigev_notify = SIGEV_SIGNAL; - newtimer->event.sigev_signo = SIGALRM; - newtimer->event.sigev_value.sival_int = timer_ptr2id (newtimer); - newtimer->event.sigev_notify_function = 0; - } - - newtimer->event.sigev_notify_attributes = &newtimer->attr; - newtimer->creator_pid = getpid (); - - switch (__builtin_expect (newtimer->event.sigev_notify, SIGEV_SIGNAL)) - { - case SIGEV_NONE: - case SIGEV_SIGNAL: - /* We have a global thread for delivering timed signals. - If it is not running, try to start it up. */ - thread = &__timer_signal_thread_rclk; - if (! thread->exists) - { - if (__builtin_expect (__timer_thread_start (thread), - 1) < 0) - { - __set_errno (EAGAIN); - goto unlock_bail; - } - } - break; - - case SIGEV_THREAD: - /* Copy over thread attributes or set up default ones. */ - if (evp->sigev_notify_attributes) - newtimer->attr = *(pthread_attr_t *) evp->sigev_notify_attributes; - else - pthread_attr_init (&newtimer->attr); - - /* Ensure thread attributes call for deatched thread. */ - pthread_attr_setdetachstate (&newtimer->attr, PTHREAD_CREATE_DETACHED); - - /* Try to find existing thread having the right attributes. */ - thread = __timer_thread_find_matching (&newtimer->attr, clock_id); - - /* If no existing thread has these attributes, try to allocate one. */ - if (thread == NULL) - thread = __timer_thread_alloc (&newtimer->attr, clock_id); - - /* Out of luck; no threads are available. */ - if (__builtin_expect (thread == NULL, 0)) - { - __set_errno (EAGAIN); - goto unlock_bail; - } - - /* If the thread is not running already, try to start it. */ - if (! thread->exists - && __builtin_expect (! __timer_thread_start (thread), 0)) - { - __set_errno (EAGAIN); - goto unlock_bail; - } - break; - - default: - __set_errno (EINVAL); - goto unlock_bail; - } - - newtimer->clock = clock_id; - newtimer->abstime = 0; - newtimer->armed = 0; - newtimer->thread = thread; - - *timerid = timer_ptr2id (newtimer); - retval = 0; - - if (__builtin_expect (retval, 0) == -1) - { - unlock_bail: - if (thread != NULL) - __timer_thread_dealloc (thread); - if (newtimer != NULL) - { - timer_delref (newtimer); - __timer_dealloc (newtimer); - } - } - - pthread_mutex_unlock (&__timer_mutex); - - return retval; -} diff --git a/linuxthreads/sysdeps/pthread/timer_delete.c b/linuxthreads/sysdeps/pthread/timer_delete.c deleted file mode 100644 index 48ba1f2726..0000000000 --- a/linuxthreads/sysdeps/pthread/timer_delete.c +++ /dev/null @@ -1,70 +0,0 @@ -/* Copyright (C) 2000, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <assert.h> -#include <errno.h> -#include <pthread.h> -#include <time.h> - -#include "posix-timer.h" - - -/* Delete timer TIMERID. */ -int -timer_delete (timerid) - timer_t timerid; -{ - struct timer_node *timer; - int retval = -1; - - pthread_mutex_lock (&__timer_mutex); - - timer = timer_id2ptr (timerid); - if (! timer_valid (timer)) - /* Invalid timer ID or the timer is not in use. */ - __set_errno (EINVAL); - else - { - if (timer->armed && timer->thread != NULL) - { - struct thread_node *thread = timer->thread; - assert (thread != NULL); - - /* If thread is cancelled while waiting for handler to terminate, - the mutex is unlocked and timer_delete is aborted. */ - pthread_cleanup_push (__timer_mutex_cancel_handler, &__timer_mutex); - - /* If timer is currently being serviced, wait for it to finish. */ - while (thread->current_timer == timer) - pthread_cond_wait (&thread->cond, &__timer_mutex); - - pthread_cleanup_pop (0); - } - - /* Remove timer from whatever queue it may be on and deallocate it. */ - timer->inuse = TIMER_DELETED; - list_unlink_ip (&timer->links); - timer_delref (timer); - retval = 0; - } - - pthread_mutex_unlock (&__timer_mutex); - - return retval; -} diff --git a/linuxthreads/sysdeps/pthread/timer_getoverr.c b/linuxthreads/sysdeps/pthread/timer_getoverr.c deleted file mode 100644 index f3e22215b2..0000000000 --- a/linuxthreads/sysdeps/pthread/timer_getoverr.c +++ /dev/null @@ -1,45 +0,0 @@ -/* Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include <time.h> - -#include "posix-timer.h" - - -/* Get expiration overrun for timer TIMERID. */ -int -timer_getoverrun (timerid) - timer_t timerid; -{ - struct timer_node *timer; - int retval = -1; - - pthread_mutex_lock (&__timer_mutex); - - if (! timer_valid (timer = timer_id2ptr (timerid))) - __set_errno (EINVAL); - else - retval = timer->overrun_count; - - pthread_mutex_unlock (&__timer_mutex); - - return retval; -} diff --git a/linuxthreads/sysdeps/pthread/timer_gettime.c b/linuxthreads/sysdeps/pthread/timer_gettime.c deleted file mode 100644 index 723a61632f..0000000000 --- a/linuxthreads/sysdeps/pthread/timer_gettime.c +++ /dev/null @@ -1,77 +0,0 @@ -/* Copyright (C) 2000, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include <time.h> - -#include "posix-timer.h" - - -/* Get current value of timer TIMERID and store it in VLAUE. */ -int -timer_gettime (timerid, value) - timer_t timerid; - struct itimerspec *value; -{ - struct timer_node *timer; - struct timespec now, expiry; - int retval = -1, armed = 0, valid; - clock_t clock = 0; - - pthread_mutex_lock (&__timer_mutex); - - timer = timer_id2ptr (timerid); - valid = timer_valid (timer); - - if (valid) { - armed = timer->armed; - expiry = timer->expirytime; - clock = timer->clock; - value->it_interval = timer->value.it_interval; - } - - pthread_mutex_unlock (&__timer_mutex); - - if (valid) - { - if (armed) - { - clock_gettime (clock, &now); - if (timespec_compare (&now, &expiry) < 0) - timespec_sub (&value->it_value, &expiry, &now); - else - { - value->it_value.tv_sec = 0; - value->it_value.tv_nsec = 0; - } - } - else - { - value->it_value.tv_sec = 0; - value->it_value.tv_nsec = 0; - } - - retval = 0; - } - else - __set_errno (EINVAL); - - return retval; -} diff --git a/linuxthreads/sysdeps/pthread/timer_routines.c b/linuxthreads/sysdeps/pthread/timer_routines.c deleted file mode 100644 index 3877b86fbb..0000000000 --- a/linuxthreads/sysdeps/pthread/timer_routines.c +++ /dev/null @@ -1,573 +0,0 @@ -/* Helper code for POSIX timer implementation on LinuxThreads. - Copyright (C) 2000, 2001, 2002, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <assert.h> -#include <errno.h> -#include <pthread.h> -#include <stddef.h> -#include <stdlib.h> -#include <string.h> -#include <sysdep.h> -#include <time.h> -#include <unistd.h> -#include <sys/syscall.h> - -#include "posix-timer.h" - - -/* Number of threads used. */ -#define THREAD_MAXNODES 16 - -/* Array containing the descriptors for the used threads. */ -static struct thread_node thread_array[THREAD_MAXNODES]; - -/* Static array with the structures for all the timers. */ -struct timer_node __timer_array[TIMER_MAX]; - -/* Global lock to protect operation on the lists. */ -pthread_mutex_t __timer_mutex = PTHREAD_MUTEX_INITIALIZER; - -/* Variable to protext initialization. */ -pthread_once_t __timer_init_once_control = PTHREAD_ONCE_INIT; - -/* Nonzero if initialization of timer implementation failed. */ -int __timer_init_failed; - -/* Node for the thread used to deliver signals. */ -struct thread_node __timer_signal_thread_rclk; - -/* Lists to keep free and used timers and threads. */ -struct list_links timer_free_list; -struct list_links thread_free_list; -struct list_links thread_active_list; - - -#ifdef __NR_rt_sigqueueinfo -extern int __syscall_rt_sigqueueinfo (int, int, siginfo_t *); -#endif - - -/* List handling functions. */ -static inline void -list_init (struct list_links *list) -{ - list->next = list->prev = list; -} - -static inline void -list_append (struct list_links *list, struct list_links *newp) -{ - newp->prev = list->prev; - newp->next = list; - list->prev->next = newp; - list->prev = newp; -} - -static inline void -list_insbefore (struct list_links *list, struct list_links *newp) -{ - list_append (list, newp); -} - -/* - * Like list_unlink_ip, except that calling it on a node that - * is already unlinked is disastrous rather than a noop. - */ - -static inline void -list_unlink (struct list_links *list) -{ - struct list_links *lnext = list->next, *lprev = list->prev; - - lnext->prev = lprev; - lprev->next = lnext; -} - -static inline struct list_links * -list_first (struct list_links *list) -{ - return list->next; -} - -static inline struct list_links * -list_null (struct list_links *list) -{ - return list; -} - -static inline struct list_links * -list_next (struct list_links *list) -{ - return list->next; -} - -static inline int -list_isempty (struct list_links *list) -{ - return list->next == list; -} - - -/* Functions build on top of the list functions. */ -static inline struct thread_node * -thread_links2ptr (struct list_links *list) -{ - return (struct thread_node *) ((char *) list - - offsetof (struct thread_node, links)); -} - -static inline struct timer_node * -timer_links2ptr (struct list_links *list) -{ - return (struct timer_node *) ((char *) list - - offsetof (struct timer_node, links)); -} - - -/* Initialize a newly allocated thread structure. */ -static void -thread_init (struct thread_node *thread, const pthread_attr_t *attr, clockid_t clock_id) -{ - if (attr != NULL) - thread->attr = *attr; - else - { - pthread_attr_init (&thread->attr); - pthread_attr_setdetachstate (&thread->attr, PTHREAD_CREATE_DETACHED); - } - - thread->exists = 0; - list_init (&thread->timer_queue); - pthread_cond_init (&thread->cond, 0); - thread->current_timer = 0; - thread->captured = pthread_self (); - thread->clock_id = clock_id; -} - - -/* Initialize the global lists, and acquire global resources. Error - reporting is done by storing a non-zero value to the global variable - timer_init_failed. */ -static void -init_module (void) -{ - int i; - - list_init (&timer_free_list); - list_init (&thread_free_list); - list_init (&thread_active_list); - - for (i = 0; i < TIMER_MAX; ++i) - { - list_append (&timer_free_list, &__timer_array[i].links); - __timer_array[i].inuse = TIMER_FREE; - } - - for (i = 0; i < THREAD_MAXNODES; ++i) - list_append (&thread_free_list, &thread_array[i].links); - - thread_init (&__timer_signal_thread_rclk, 0, CLOCK_REALTIME); -} - - -/* This is a handler executed in a child process after a fork() - occurs. It reinitializes the module, resetting all of the data - structures to their initial state. The mutex is initialized in - case it was locked in the parent process. */ -static void -reinit_after_fork (void) -{ - init_module (); - pthread_mutex_init (&__timer_mutex, 0); -} - - -/* Called once form pthread_once in timer_init. This initializes the - module and ensures that reinit_after_fork will be executed in any - child process. */ -void -__timer_init_once (void) -{ - init_module (); - pthread_atfork (0, 0, reinit_after_fork); -} - - -/* Deinitialize a thread that is about to be deallocated. */ -static void -thread_deinit (struct thread_node *thread) -{ - assert (list_isempty (&thread->timer_queue)); - pthread_cond_destroy (&thread->cond); -} - - -/* Allocate a thread structure from the global free list. Global - mutex lock must be held by caller. The thread is moved to - the active list. */ -struct thread_node * -__timer_thread_alloc (const pthread_attr_t *desired_attr, clockid_t clock_id) -{ - struct list_links *node = list_first (&thread_free_list); - - if (node != list_null (&thread_free_list)) - { - struct thread_node *thread = thread_links2ptr (node); - list_unlink (node); - thread_init (thread, desired_attr, clock_id); - list_append (&thread_active_list, node); - return thread; - } - - return 0; -} - - -/* Return a thread structure to the global free list. Global lock - must be held by caller. */ -void -__timer_thread_dealloc (struct thread_node *thread) -{ - thread_deinit (thread); - list_unlink (&thread->links); - list_append (&thread_free_list, &thread->links); -} - - -/* Each of our threads which terminates executes this cleanup - handler. We never terminate threads ourselves; if a thread gets here - it means that the evil application has killed it. If the thread has - timers, these require servicing and so we must hire a replacement - thread right away. We must also unblock another thread that may - have been waiting for this thread to finish servicing a timer (see - timer_delete()). */ - -static void -thread_cleanup (void *val) -{ - if (val != NULL) - { - struct thread_node *thread = val; - - /* How did the signal thread get killed? */ - assert (thread != &__timer_signal_thread_rclk); - - pthread_mutex_lock (&__timer_mutex); - - thread->exists = 0; - - /* We are no longer processing a timer event. */ - thread->current_timer = 0; - - if (list_isempty (&thread->timer_queue)) - __timer_thread_dealloc (thread); - else - (void) __timer_thread_start (thread); - - pthread_mutex_unlock (&__timer_mutex); - - /* Unblock potentially blocked timer_delete(). */ - pthread_cond_broadcast (&thread->cond); - } -} - - -/* Handle a timer which is supposed to go off now. */ -static void -thread_expire_timer (struct thread_node *self, struct timer_node *timer) -{ - self->current_timer = timer; /* Lets timer_delete know timer is running. */ - - pthread_mutex_unlock (&__timer_mutex); - - switch (__builtin_expect (timer->event.sigev_notify, SIGEV_SIGNAL)) - { - case SIGEV_NONE: - break; - - case SIGEV_SIGNAL: -#ifdef __NR_rt_sigqueueinfo - { - siginfo_t info; - - /* First, clear the siginfo_t structure, so that we don't pass our - stack content to other tasks. */ - memset (&info, 0, sizeof (siginfo_t)); - /* We must pass the information about the data in a siginfo_t - value. */ - info.si_signo = timer->event.sigev_signo; - info.si_code = SI_TIMER; - info.si_pid = timer->creator_pid; - info.si_uid = getuid (); - info.si_value = timer->event.sigev_value; - - INLINE_SYSCALL (rt_sigqueueinfo, 3, info.si_pid, info.si_signo, &info); - } -#else - if (pthread_kill (self->captured, timer->event.sigev_signo) != 0) - { - if (pthread_kill (self->id, timer->event.sigev_signo) != 0) - abort (); - } -#endif - break; - - case SIGEV_THREAD: - timer->event.sigev_notify_function (timer->event.sigev_value); - break; - - default: - assert (! "unknown event"); - break; - } - - pthread_mutex_lock (&__timer_mutex); - - self->current_timer = 0; - - pthread_cond_broadcast (&self->cond); -} - - -/* Thread function; executed by each timer thread. The job of this - function is to wait on the thread's timer queue and expire the - timers in chronological order as close to their scheduled time as - possible. */ -static void -__attribute__ ((noreturn)) -thread_func (void *arg) -{ - struct thread_node *self = arg; - - /* Register cleanup handler, in case rogue application terminates - this thread. (This cannot happen to __timer_signal_thread, which - doesn't invoke application callbacks). */ - - pthread_cleanup_push (thread_cleanup, self); - - pthread_mutex_lock (&__timer_mutex); - - while (1) - { - struct list_links *first; - struct timer_node *timer = NULL; - - /* While the timer queue is not empty, inspect the first node. */ - first = list_first (&self->timer_queue); - if (first != list_null (&self->timer_queue)) - { - struct timespec now; - - timer = timer_links2ptr (first); - - /* This assumes that the elements of the list of one thread - are all for the same clock. */ - clock_gettime (timer->clock, &now); - - while (1) - { - /* If the timer is due or overdue, remove it from the queue. - If it's a periodic timer, re-compute its new time and - requeue it. Either way, perform the timer expiry. */ - if (timespec_compare (&now, &timer->expirytime) < 0) - break; - - list_unlink_ip (first); - - if (__builtin_expect (timer->value.it_interval.tv_sec, 0) != 0 - || timer->value.it_interval.tv_nsec != 0) - { - timer->overrun_count = 0; - timespec_add (&timer->expirytime, &timer->expirytime, - &timer->value.it_interval); - while (timespec_compare (&timer->expirytime, &now) < 0) - { - timespec_add (&timer->expirytime, &timer->expirytime, - &timer->value.it_interval); - if (timer->overrun_count < DELAYTIMER_MAX) - ++timer->overrun_count; - } - __timer_thread_queue_timer (self, timer); - } - - thread_expire_timer (self, timer); - - first = list_first (&self->timer_queue); - if (first == list_null (&self->timer_queue)) - break; - - timer = timer_links2ptr (first); - } - } - - /* If the queue is not empty, wait until the expiry time of the - first node. Otherwise wait indefinitely. Insertions at the - head of the queue must wake up the thread by broadcasting - this condition variable. */ - if (timer != NULL) - pthread_cond_timedwait (&self->cond, &__timer_mutex, - &timer->expirytime); - else - pthread_cond_wait (&self->cond, &__timer_mutex); - } - /* This macro will never be executed since the while loop loops - forever - but we have to add it for proper nesting. */ - pthread_cleanup_pop (1); -} - - -/* Enqueue a timer in wakeup order in the thread's timer queue. - Returns 1 if the timer was inserted at the head of the queue, - causing the queue's next wakeup time to change. */ - -int -__timer_thread_queue_timer (struct thread_node *thread, - struct timer_node *insert) -{ - struct list_links *iter; - int athead = 1; - - for (iter = list_first (&thread->timer_queue); - iter != list_null (&thread->timer_queue); - iter = list_next (iter)) - { - struct timer_node *timer = timer_links2ptr (iter); - - if (timespec_compare (&insert->expirytime, &timer->expirytime) < 0) - break; - athead = 0; - } - - list_insbefore (iter, &insert->links); - return athead; -} - - -/* Start a thread and associate it with the given thread node. Global - lock must be held by caller. */ -int -__timer_thread_start (struct thread_node *thread) -{ - int retval = 1; - - assert (!thread->exists); - thread->exists = 1; - - if (pthread_create (&thread->id, &thread->attr, - (void *(*) (void *)) thread_func, thread) != 0) - { - thread->exists = 0; - retval = -1; - } - - return retval; -} - - -void -__timer_thread_wakeup (struct thread_node *thread) -{ - pthread_cond_broadcast (&thread->cond); -} - - -/* Compare two pthread_attr_t thread attributes for exact equality. - Returns 1 if they are equal, otherwise zero if they are not equal or - contain illegal values. This version is LinuxThreads-specific for - performance reason. One could use the access functions to get the - values of all the fields of the attribute structure. */ -static int -thread_attr_compare (const pthread_attr_t *left, const pthread_attr_t *right) -{ - return (left->__detachstate == right->__detachstate - && left->__schedpolicy == right->__schedpolicy - && left->__guardsize == right->__guardsize - && (left->__schedparam.sched_priority - == right->__schedparam.sched_priority) - && left->__inheritsched == right->__inheritsched - && left->__scope == right->__scope - && left->__stacksize == right->__stacksize - && left->__stackaddr_set == right->__stackaddr_set - && (left->__stackaddr_set - || left->__stackaddr == right->__stackaddr)); -} - - -/* Search the list of active threads and find one which has matching - attributes. Global mutex lock must be held by caller. */ -struct thread_node * -__timer_thread_find_matching (const pthread_attr_t *desired_attr, - clockid_t desired_clock_id) -{ - struct list_links *iter = list_first (&thread_active_list); - - while (iter != list_null (&thread_active_list)) - { - struct thread_node *candidate = thread_links2ptr (iter); - - if (thread_attr_compare (desired_attr, &candidate->attr) - && desired_clock_id == candidate->clock_id) - return candidate; - - iter = list_next (iter); - } - - return NULL; -} - - -/* Grab a free timer structure from the global free list. The global - lock must be held by the caller. */ -struct timer_node * -__timer_alloc (void) -{ - struct list_links *node = list_first (&timer_free_list); - - if (node != list_null (&timer_free_list)) - { - struct timer_node *timer = timer_links2ptr (node); - list_unlink_ip (node); - timer->inuse = TIMER_INUSE; - timer->refcount = 1; - return timer; - } - - return NULL; -} - - -/* Return a timer structure to the global free list. The global lock - must be held by the caller. */ -void -__timer_dealloc (struct timer_node *timer) -{ - assert (timer->refcount == 0); - timer->thread = NULL; /* Break association between timer and thread. */ - timer->inuse = TIMER_FREE; - list_append (&timer_free_list, &timer->links); -} - - -/* Thread cancellation handler which unlocks a mutex. */ -void -__timer_mutex_cancel_handler (void *arg) -{ - pthread_mutex_unlock (arg); -} diff --git a/linuxthreads/sysdeps/pthread/timer_settime.c b/linuxthreads/sysdeps/pthread/timer_settime.c deleted file mode 100644 index 592b5271ba..0000000000 --- a/linuxthreads/sysdeps/pthread/timer_settime.c +++ /dev/null @@ -1,137 +0,0 @@ -/* Copyright (C) 2000, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include <time.h> - -#include "posix-timer.h" - - -/* Set timer TIMERID to VALUE, returning old value in OVLAUE. */ -int -timer_settime (timerid, flags, value, ovalue) - timer_t timerid; - int flags; - const struct itimerspec *value; - struct itimerspec *ovalue; -{ - struct timer_node *timer; - struct thread_node *thread = NULL; - struct timespec now; - int have_now = 0, need_wakeup = 0; - int retval = -1; - - timer = timer_id2ptr (timerid); - if (timer == NULL) - { - __set_errno (EINVAL); - goto bail; - } - - if (value->it_interval.tv_nsec < 0 - || value->it_interval.tv_nsec >= 1000000000 - || value->it_value.tv_nsec < 0 - || value->it_value.tv_nsec >= 1000000000) - { - __set_errno (EINVAL); - goto bail; - } - - /* Will need to know current time since this is a relative timer; - might as well make the system call outside of the lock now! */ - - if ((flags & TIMER_ABSTIME) == 0) - { - clock_gettime (timer->clock, &now); - have_now = 1; - } - - pthread_mutex_lock (&__timer_mutex); - timer_addref (timer); - - /* One final check of timer validity; this one is possible only - until we have the mutex, because it accesses the inuse flag. */ - - if (! timer_valid(timer)) - { - __set_errno (EINVAL); - goto unlock_bail; - } - - if (ovalue != NULL) - { - ovalue->it_interval = timer->value.it_interval; - - if (timer->armed) - { - if (! have_now) - { - pthread_mutex_unlock (&__timer_mutex); - clock_gettime (timer->clock, &now); - have_now = 1; - pthread_mutex_lock (&__timer_mutex); - timer_addref (timer); - } - - timespec_sub (&ovalue->it_value, &timer->expirytime, &now); - } - else - { - ovalue->it_value.tv_sec = 0; - ovalue->it_value.tv_nsec = 0; - } - } - - timer->value = *value; - - list_unlink_ip (&timer->links); - timer->armed = 0; - - thread = timer->thread; - - /* A value of { 0, 0 } causes the timer to be stopped. */ - if (value->it_value.tv_sec != 0 - || __builtin_expect (value->it_value.tv_nsec != 0, 1)) - { - if ((flags & TIMER_ABSTIME) != 0) - /* The user specified the expiration time. */ - timer->expirytime = value->it_value; - else - timespec_add (&timer->expirytime, &now, &value->it_value); - - /* Only need to wake up the thread if timer is inserted - at the head of the queue. */ - if (thread != NULL) - need_wakeup = __timer_thread_queue_timer (thread, timer); - timer->armed = 1; - } - - retval = 0; - -unlock_bail: - timer_delref (timer); - pthread_mutex_unlock (&__timer_mutex); - -bail: - if (thread != NULL && need_wakeup) - __timer_thread_wakeup (thread); - - return retval; -} diff --git a/linuxthreads/sysdeps/pthread/tst-timer.c b/linuxthreads/sysdeps/pthread/tst-timer.c deleted file mode 100644 index 7417bcd5f0..0000000000 --- a/linuxthreads/sysdeps/pthread/tst-timer.c +++ /dev/null @@ -1,114 +0,0 @@ -/* Tests for POSIX timer implementation. - Copyright (C) 2000, 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <signal.h> -#include <stdio.h> -#include <time.h> -#include <unistd.h> - - -static void -notify_func (union sigval sigval) -{ - puts ("notify_func"); -} - - -static void -signal_func (int sig) -{ - static const char text[] = "signal_func\n"; - signal (sig, signal_func); - write (STDOUT_FILENO, text, sizeof text - 1); -} - -static void -intr_sleep (int sec) -{ - struct timespec ts; - - ts.tv_sec = sec; - ts.tv_nsec = 0; - - while (nanosleep (&ts, &ts) == -1 && errno == EINTR) - ; -} - -#define ZSIGALRM 14 - - -int -main (void) -{ - struct timespec ts; - timer_t timer_sig, timer_thr1, timer_thr2; - int retval; - struct sigevent sigev1 = - { - .sigev_notify = SIGEV_SIGNAL, - .sigev_signo = ZSIGALRM - }; - struct sigevent sigev2; - struct itimerspec itimer1 = { { 0, 200000000 }, { 0, 200000000 } }; - struct itimerspec itimer2 = { { 0, 100000000 }, { 0, 500000000 } }; - struct itimerspec itimer3 = { { 0, 150000000 }, { 0, 300000000 } }; - struct itimerspec old; - - retval = clock_gettime (CLOCK_REALTIME, &ts); - - sigev2.sigev_notify = SIGEV_THREAD; - sigev2.sigev_notify_function = notify_func; - sigev2.sigev_notify_attributes = NULL; - - setvbuf (stdout, 0, _IOLBF, 0); - - printf ("clock_gettime returned %d, timespec = { %ld, %ld }\n", - retval, ts.tv_sec, ts.tv_nsec); - - retval = clock_getres (CLOCK_REALTIME, &ts); - - printf ("clock_getres returned %d, timespec = { %ld, %ld }\n", - retval, ts.tv_sec, ts.tv_nsec); - - timer_create (CLOCK_REALTIME, &sigev1, &timer_sig); - timer_create (CLOCK_REALTIME, &sigev2, &timer_thr1); - timer_create (CLOCK_REALTIME, &sigev2, &timer_thr2); - - timer_settime (timer_thr1, 0, &itimer2, &old); - timer_settime (timer_thr2, 0, &itimer3, &old); - - signal (ZSIGALRM, signal_func); - - timer_settime (timer_sig, 0, &itimer1, &old); - - timer_delete (-1); - - intr_sleep (3); - - timer_delete (timer_sig); - timer_delete (timer_thr1); - - intr_sleep (3); - - timer_delete (timer_thr2); - - return 0; -} diff --git a/linuxthreads/sysdeps/s390/Makefile b/linuxthreads/sysdeps/s390/Makefile deleted file mode 100644 index 2885c968b3..0000000000 --- a/linuxthreads/sysdeps/s390/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -ifeq ($(subdir),csu) -gen-as-const-headers += tcb-offsets.sym -endif -ifeq ($(subdir),linuxthreads) -libpthread-routines += ptw-sysdep -endif diff --git a/linuxthreads/sysdeps/s390/pspinlock.c b/linuxthreads/sysdeps/s390/pspinlock.c deleted file mode 100644 index f963f35371..0000000000 --- a/linuxthreads/sysdeps/s390/pspinlock.c +++ /dev/null @@ -1,91 +0,0 @@ -/* POSIX spinlock implementation. S/390 version. - Copyright (C) 2000, 2004 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - -/* This implementation is similar to the one used in the Linux kernel. - But the kernel is byte instructions for the memory access. This is - faster but unusable here. The problem is that only 128 - threads/processes could use the spinlock at the same time. If (by - a design error in the program) a thread/process would hold the - spinlock for a time long enough to accumulate 128 waiting - processes, the next one will find a positive value in the spinlock - and assume it is unlocked. We cannot accept that. */ - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - asm volatile(" basr 1,0\n" - "0: slr 0,0\n" - " cs 0,1,%1\n" - " jl 0b\n" - : "=m" (*lock) - : "m" (*lock) : "0", "1", "cc" ); - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - int oldval; - - asm volatile(" slr %1,%1\n" - " basr 1,0\n" - "0: cs %1,1,%0" - : "=m" (*lock), "=&d" (oldval) - : "m" (*lock) : "1", "cc" ); - return oldval == 0 ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - asm volatile(" xc 0(4,%0),0(%0)\n" - " bcr 15,0" - : : "a" (lock) : "memory" ); - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/s390/s390-32/pt-machine.h b/linuxthreads/sysdeps/s390/s390-32/pt-machine.h deleted file mode 100644 index 398332965f..0000000000 --- a/linuxthreads/sysdeps/s390/s390-32/pt-machine.h +++ /dev/null @@ -1,120 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - S390 version. - Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* For multiprocessor systems, we want to ensure all memory accesses - are completed before we reset a lock. On other systems, we still - need to make sure that the compiler has flushed everything to memory. */ -#define MEMORY_BARRIER() __asm__ __volatile__ ("bcr 15,0" : : : "memory") - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - int ret; - - __asm__ __volatile__( - " la 1,%1\n" - " lhi 0,1\n" - " l %0,%1\n" - "0: cs %0,0,0(1)\n" - " jl 0b" - : "=&d" (ret), "+m" (*spinlock) - : : "0", "1", "cc"); - - return ret; -} - - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("15"); - -#ifdef USE_TLS -/* Return the thread descriptor for the current thread. */ -# define THREAD_SELF ((pthread_descr) __builtin_thread_pointer ()) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) __builtin_set_thread_pointer (descr) -#else -/* Return the thread descriptor for the current thread. - S/390 registers uses access register 0 as "thread register". */ -#define THREAD_SELF ({ \ - register pthread_descr __self; \ - __asm__ ("ear %0,%%a0" : "=d" (__self) ); \ - __self; \ -}) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) ({ \ - __asm__ ("sar %%a0,%0" : : "d" (descr) ); \ -}) -#endif - -/* Access to data in the thread descriptor is easy. */ -#define THREAD_GETMEM(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_GETMEM_NC(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_SETMEM(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) -#define THREAD_SETMEM_NC(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 8*1024*1024 - -/* Compare-and-swap for semaphores. */ - -#define HAS_COMPARE_AND_SWAP - -PT_EI int -__compare_and_swap(long int *p, long int oldval, long int newval) -{ - int retval; - - __asm__ __volatile__( - " la 1,%1\n" - " lr 0,%2\n" - " cs 0,%3,0(1)\n" - " ipm %0\n" - " srl %0,28\n" - "0:" - : "=&d" (retval), "+m" (*p) - : "d" (oldval) , "d" (newval) - : "cc", "0", "1" ); - return retval == 0; -} - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/s390/s390-64/pt-machine.h b/linuxthreads/sysdeps/s390/s390-64/pt-machine.h deleted file mode 100644 index 49f8ae2b9a..0000000000 --- a/linuxthreads/sysdeps/s390/s390-64/pt-machine.h +++ /dev/null @@ -1,125 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - 64 bit S/390 version. - Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* For multiprocessor systems, we want to ensure all memory accesses - are completed before we reset a lock. On other systems, we still - need to make sure that the compiler has flushed everything to memory. */ -#define MEMORY_BARRIER() __asm__ __volatile__ ("bcr 15,0" : : : "memory") - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - int ret; - - __asm__ __volatile__( - " la 1,%1\n" - " lhi 0,1\n" - " l %0,%1\n" - "0: cs %0,0,0(1)\n" - " jl 0b" - : "=&d" (ret), "+m" (*spinlock) - : : "0", "1", "cc"); - - return ret; -} - - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("15"); - -#ifdef USE_TLS -/* Return the thread descriptor for the current thread. */ -# define THREAD_SELF ((pthread_descr) __builtin_thread_pointer ()) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) __builtin_set_thread_pointer (descr) -#else -/* Return the thread descriptor for the current thread. - 64 bit S/390 uses access register 0 and 1 as "thread register". */ -#define THREAD_SELF ({ \ - register pthread_descr __self; \ - __asm__ (" ear %0,%%a0\n" \ - " sllg %0,%0,32\n" \ - " ear %0,%%a1\n" \ - : "=d" (__self) ); \ - __self; \ -}) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) ({ \ - __asm__ (" sar %%a1,%0\n" \ - " srlg 0,%0,32\n" \ - " sar %%a0,0\n" \ - : : "d" (descr) : "0" ); \ -}) -#endif - -/* Access to data in the thread descriptor is easy. */ -#define THREAD_GETMEM(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_GETMEM_NC(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_SETMEM(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) -#define THREAD_SETMEM_NC(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 8*1024*1024 - -/* Compare-and-swap for semaphores. */ - -#define HAS_COMPARE_AND_SWAP - -PT_EI int -__compare_and_swap(long int *p, long int oldval, long int newval) -{ - int retval; - - __asm__ __volatile__( - " lgr 0,%2\n" - " csg 0,%3,%1\n" - " ipm %0\n" - " srl %0,28\n" - "0:" - : "=&d" (retval), "+m" (*p) - : "d" (oldval) , "d" (newval) - : "cc", "0"); - return retval == 0; -} - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/s390/tcb-offsets.sym b/linuxthreads/sysdeps/s390/tcb-offsets.sym deleted file mode 100644 index aee6be2570..0000000000 --- a/linuxthreads/sysdeps/s390/tcb-offsets.sym +++ /dev/null @@ -1,4 +0,0 @@ -#include <sysdep.h> -#include <tls.h> - -MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads) diff --git a/linuxthreads/sysdeps/s390/tls.h b/linuxthreads/sysdeps/s390/tls.h deleted file mode 100644 index f750f2d6f7..0000000000 --- a/linuxthreads/sysdeps/s390/tls.h +++ /dev/null @@ -1,145 +0,0 @@ -/* Definitions for thread-local data handling. linuxthreads/s390 version. - Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _TLS_H -#define _TLS_H - -#ifndef __ASSEMBLER__ - -# include <pt-machine.h> -# include <stdbool.h> -# include <stddef.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - struct - { - void *val; - bool is_static; - } pointer; -} dtv_t; - -typedef struct -{ - void *tcb; /* Pointer to the TCB. Not necessary the - thread descriptor used by libpthread. */ - dtv_t *dtv; - void *self; /* Pointer to the thread descriptor. */ - int multiple_threads; -} tcbhead_t; - -#else /* __ASSEMBLER__ */ -# include <tcb-offsets.h> -#endif /* __ASSEMBLER__ */ - -/* TLS is always supported if the tools support it. There are no - kernel dependencies. To avoid bothering with the TLS support code - at all, use configure --without-tls. - - We need USE_TLS to be consistently defined, for ldsodefs.h - conditionals. */ - -#ifdef HAVE_TLS_SUPPORT - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -# ifndef __ASSEMBLER__ -/* Get system call information. */ -# include <sysdep.h> - - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -/* This is the size of the initial TCB. */ -# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) - -/* This is the size of the TCB. */ -# define TLS_TCB_SIZE sizeof (struct _pthread_descr_struct) - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* The TCB can have any size and the memory following the address the - thread pointer points to is unspecified. Allocate the TCB there. */ -# define TLS_TCB_AT_TP 1 - - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(descr, dtvp) \ - ((tcbhead_t *) (descr))->dtv = (dtvp) + 1 - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(dtv) \ - (((tcbhead_t *) __builtin_thread_pointer ())->dtv = (dtv)) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(descr) \ - (((tcbhead_t *) (descr))->dtv) - -/* Code to initially initialize the thread pointer. This might need - special attention since 'errno' is not yet available and if the - operation can cause a failure 'errno' must not be touched. - - The value of this macro is null if successful, or an error string. */ -# define TLS_INIT_TP(descr, secondcall) \ - ({ \ - void *_descr = (descr); \ - tcbhead_t *head = _descr; \ - \ - head->tcb = _descr; \ - /* For now the thread descriptor is at the same address. */ \ - head->self = _descr; \ - \ - __builtin_set_thread_pointer (_descr); \ - NULL; \ - }) - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - (((tcbhead_t *) __builtin_thread_pointer ())->dtv) - -# endif /* __ASSEMBLER__ */ - -#else /* HAVE_TLS_SUPPORT && (FLOATING_STACKS || !IS_IN_libpthread) */ - -# ifndef __ASSEMBLER__ - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -# define NONTLS_INIT_TP \ - do { \ - static const tcbhead_t nontls_init_tp \ - = { .multiple_threads = 0 }; \ - INIT_THREAD_SELF (&nontls_init_tp, 0); \ - } while (0) - -# endif /* __ASSEMBLER__ */ - -#endif /* HAVE_TLS_SUPPORT && (FLOATING_STACKS || !IS_IN_libpthread) */ - -#endif /* tls.h */ diff --git a/linuxthreads/sysdeps/sh/Makefile b/linuxthreads/sysdeps/sh/Makefile deleted file mode 100644 index 81bddf688c..0000000000 --- a/linuxthreads/sysdeps/sh/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -ifeq ($(subdir),csu) -gen-as-const-headers += tcb-offsets.sym -endif diff --git a/linuxthreads/sysdeps/sh/pspinlock.c b/linuxthreads/sysdeps/sh/pspinlock.c deleted file mode 100644 index 2dec849d3c..0000000000 --- a/linuxthreads/sysdeps/sh/pspinlock.c +++ /dev/null @@ -1,80 +0,0 @@ -/* POSIX spinlock implementation. SH version. - Copyright (C) 2000, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - unsigned int val; - - do - asm volatile ("tas.b @%1; movt %0" - : "=r" (val) - : "r" (lock) - : "memory"); - while (val == 0); - - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - unsigned int val; - - asm volatile ("tas.b @%1; movt %0" - : "=r" (val) - : "r" (lock) - : "memory"); - return val ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - return *lock = 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - return *lock = 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/sh/pt-machine.h b/linuxthreads/sysdeps/sh/pt-machine.h deleted file mode 100644 index 02545e6b45..0000000000 --- a/linuxthreads/sysdeps/sh/pt-machine.h +++ /dev/null @@ -1,81 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - SuperH version. - Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Niibe Yutaka <gniibe@m17n.org>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef __ASSEMBLER__ -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - int ret; - - __asm__ __volatile__( - "tas.b @%1\n\t" - "movt %0" - : "=r" (ret) - : "r" (spinlock) - : "memory", "cc"); - - return (ret == 0); -} - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 32*1024*1024 - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("r15"); - -/* Return the thread descriptor for the current thread. */ -struct _pthread_descr_struct; -#define THREAD_SELF \ - ({ struct _pthread_descr_struct *self; \ - __asm__("stc gbr,%0" : "=r" (self)); self;}) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) \ - ({ __asm__ __volatile__("ldc %0,gbr" : : "r" (descr));}) - -/* Access to data in the thread descriptor is easy. */ -#define THREAD_GETMEM(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_GETMEM_NC(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_SETMEM(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) -#define THREAD_SETMEM_NC(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) -#endif /* __ASSEMBLER__ */ - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/sh/tcb-offsets.sym b/linuxthreads/sysdeps/sh/tcb-offsets.sym deleted file mode 100644 index 328eb05738..0000000000 --- a/linuxthreads/sysdeps/sh/tcb-offsets.sym +++ /dev/null @@ -1,10 +0,0 @@ -#include <sysdep.h> -#include <tls.h> - --- -#ifdef USE_TLS -MULTIPLE_THREADS_OFFSET offsetof (struct _pthread_descr_struct, p_multiple_threads) -TLS_PRE_TCB_SIZE sizeof (struct _pthread_descr_struct) -#else -MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads) -#endif diff --git a/linuxthreads/sysdeps/sh/tls.h b/linuxthreads/sysdeps/sh/tls.h deleted file mode 100644 index 699eeb6227..0000000000 --- a/linuxthreads/sysdeps/sh/tls.h +++ /dev/null @@ -1,153 +0,0 @@ -/* Definition for thread-local data handling. linuxthreads/SH version. - Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _TLS_H -#define _TLS_H - -# include <dl-sysdep.h> -# include <pt-machine.h> - -#ifndef __ASSEMBLER__ -# include <stdbool.h> -# include <stddef.h> -# include <stdint.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - struct - { - void *val; - bool is_static; - } pointer; -} dtv_t; - -#else /* __ASSEMBLER__ */ -# include <tcb-offsets.h> -#endif /* __ASSEMBLER__ */ - - -/* We can support TLS only if the floating-stack support is available. */ -#if defined HAVE_TLS_SUPPORT \ - && (defined FLOATING_STACKS || !defined IS_IN_libpthread) - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -# ifndef __ASSEMBLER__ - -typedef struct -{ - dtv_t *dtv; - void *private; -} tcbhead_t; - -/* This is the size of the initial TCB. */ -# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) - -/* This is the size of the TCB. */ -# define TLS_TCB_SIZE sizeof (tcbhead_t) - -/* This is the size we need before TCB. */ -# define TLS_PRE_TCB_SIZE sizeof (struct _pthread_descr_struct) - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* The TLS blocks start right after the TCB. */ -# define TLS_DTV_AT_TP 1 - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(tcbp, dtvp) \ - ((tcbhead_t *) (tcbp))->dtv = dtvp + 1 - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(dtv) \ - ({ tcbhead_t *__tcbp; \ - __asm __volatile ("stc gbr,%0" : "=r" (__tcbp)); \ - __tcbp->dtv = (dtv);}) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(tcbp) \ - (((tcbhead_t *) (tcbp))->dtv) - -/* Code to initially initialize the thread pointer. This might need - special attention since 'errno' is not yet available and if the - operation can cause a failure 'errno' must not be touched. */ -# define TLS_INIT_TP(tcbp, secondcall) \ - ({ __asm __volatile ("ldc %0,gbr" : : "r" (tcbp)); 0; }) - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - ({ tcbhead_t *__tcbp; \ - __asm __volatile ("stc gbr,%0" : "=r" (__tcbp)); \ - __tcbp->dtv;}) - -/* Return the thread descriptor for the current thread. */ -# undef THREAD_SELF -# define THREAD_SELF \ - ({ struct _pthread_descr_struct *__self; \ - __asm ("stc gbr,%0" : "=r" (__self)); \ - __self - 1;}) - -# undef INIT_THREAD_SELF -# define INIT_THREAD_SELF(descr, nr) \ - ({ struct _pthread_descr_struct *__self = (void *) descr; \ - __asm __volatile ("ldc %0,gbr" : : "r" (__self + 1)); \ - 0; }) - -# define TLS_MULTIPLE_THREADS_IN_TCB 1 - -/* Get the thread descriptor definition. This must be after the - the definition of THREAD_SELF for TLS. */ -# include <linuxthreads/descr.h> - -# endif /* __ASSEMBLER__ */ - -#else - -# ifndef __ASSEMBLER__ - -typedef struct -{ - void *tcb; - dtv_t *dtv; - void *self; - int multiple_threads; -} tcbhead_t; - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -# define NONTLS_INIT_TP \ - do { \ - static const tcbhead_t nontls_init_tp = { .multiple_threads = 0 }; \ - __asm __volatile ("ldc %0,gbr" : : "r" (&nontls_init_tp)); \ - } while (0) - -# endif /* __ASSEMBLER__ */ - -#endif /* HAVE_TLS_SUPPORT && (FLOATING_STACKS || !IS_IN_libpthread) */ - -#endif /* tls.h */ diff --git a/linuxthreads/sysdeps/sparc/Makefile b/linuxthreads/sysdeps/sparc/Makefile deleted file mode 100644 index 81bddf688c..0000000000 --- a/linuxthreads/sysdeps/sparc/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -ifeq ($(subdir),csu) -gen-as-const-headers += tcb-offsets.sym -endif diff --git a/linuxthreads/sysdeps/sparc/sparc32/pspinlock.c b/linuxthreads/sysdeps/sparc/sparc32/pspinlock.c deleted file mode 100644 index a67dbf901e..0000000000 --- a/linuxthreads/sysdeps/sparc/sparc32/pspinlock.c +++ /dev/null @@ -1,88 +0,0 @@ -/* POSIX spinlock implementation. SPARC32 version. - Copyright (C) 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - -/* This implementation is similar to the one used in the Linux kernel. */ -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - asm volatile - ("1: ldstub [%0], %%g2\n" - " orcc %%g2, 0x0, %%g0\n" - " bne,a 2f\n" - " ldub [%0], %%g2\n" - ".subsection 2\n" - "2: orcc %%g2, 0x0, %%g0\n" - " bne,a 2b\n" - " ldub [%0], %%g2\n" - " b,a 1b\n" - ".previous" - : /* no outputs */ - : "r" (lock) - : "g2", "memory", "cc"); - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - int result; - asm volatile - ("ldstub [%1], %0" - : "=r" (result) - : "r" (lock) - : "memory"); - return result == 0 ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h b/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h deleted file mode 100644 index 322a52051f..0000000000 --- a/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h +++ /dev/null @@ -1,83 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - sparc version. - Copyright (C) 1996-1998, 2000-2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson <rth@tamu.edu>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - int ret; - - __asm__ __volatile__("ldstub %1,%0" - : "=r"(ret), "=m"(*spinlock) - : "m"(*spinlock)); - - return ret; -} - - -/* Memory barrier; default is to do nothing */ -#define MEMORY_BARRIER() __asm__ __volatile__("stbar" : : : "memory") - - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME (stack_pointer + (2 * 64)) -register char *stack_pointer __asm__("%sp"); - - -/* Registers %g6 and %g7 are reserved by the ABI for "system use". - %g7 is specified in the TLS ABI as thread pointer -- we do the same. */ -struct _pthread_descr_struct; -register struct _pthread_descr_struct *__thread_self __asm__("%g7"); - -/* Return the thread descriptor for the current thread. */ -#define THREAD_SELF __thread_self - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr)) - -/* Access to data in the thread descriptor is easy. */ -#define THREAD_GETMEM(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_GETMEM_NC(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_SETMEM(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) -#define THREAD_SETMEM_NC(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 8*1024*1024 - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/sparc/sparc32/sparcv9/Versions b/linuxthreads/sysdeps/sparc/sparc32/sparcv9/Versions deleted file mode 100644 index 32da57080d..0000000000 --- a/linuxthreads/sysdeps/sparc/sparc32/sparcv9/Versions +++ /dev/null @@ -1,5 +0,0 @@ -libpthread { - GLIBC_PRIVATE { - __pthread_clock_gettime; __pthread_clock_settime; - } -} diff --git a/linuxthreads/sysdeps/sparc/sparc32/sparcv9/pspinlock.c b/linuxthreads/sysdeps/sparc/sparc32/sparcv9/pspinlock.c deleted file mode 100644 index 04f588bed5..0000000000 --- a/linuxthreads/sysdeps/sparc/sparc32/sparcv9/pspinlock.c +++ /dev/null @@ -1,94 +0,0 @@ -/* POSIX spinlock implementation. SPARC v9 version. - Copyright (C) 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - - -/* This implementation is similar to the one used in the Linux kernel. */ -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - asm volatile - ("1: ldstub [%0], %%g2\n" - " brnz,pn %%g2, 2f\n" - " membar #StoreLoad | #StoreStore\n" - ".subsection 2\n" - "2: ldub [%0], %%g2\n" - " brnz,pt %%g2, 2b\n" - " membar #LoadLoad\n" - " b,a,pt %%xcc, 1b\n" - ".previous" - : /* no outputs */ - : "r" (lock) - : "g2", "memory"); - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - int result; - asm volatile - ("ldstub [%1], %0\n" - "membar #StoreLoad | #StoreStore" - : "=r" (result) - : "r" (lock) - : "memory"); - return result == 0 ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - asm volatile - ("membar #StoreStore | #LoadStore\n" - "stb %%g0, [%0]" - : - : "r" (lock) - : "memory"); - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/sparc/sparc64/Versions b/linuxthreads/sysdeps/sparc/sparc64/Versions deleted file mode 100644 index 32da57080d..0000000000 --- a/linuxthreads/sysdeps/sparc/sparc64/Versions +++ /dev/null @@ -1,5 +0,0 @@ -libpthread { - GLIBC_PRIVATE { - __pthread_clock_gettime; __pthread_clock_settime; - } -} diff --git a/linuxthreads/sysdeps/sparc/sparc64/pspinlock.c b/linuxthreads/sysdeps/sparc/sparc64/pspinlock.c deleted file mode 100644 index 92b84f5108..0000000000 --- a/linuxthreads/sysdeps/sparc/sparc64/pspinlock.c +++ /dev/null @@ -1,93 +0,0 @@ -/* POSIX spinlock implementation. SPARC64 version. - Copyright (C) 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - -/* This implementation is similar to the one used in the Linux kernel. */ -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - asm volatile - ("1: ldstub [%0], %%g5\n" - " brnz,pn %%g5, 2f\n" - " membar #StoreLoad | #StoreStore\n" - ".subsection 2\n" - "2: ldub [%0], %%g5\n" - " brnz,pt %%g5, 2b\n" - " membar #LoadLoad\n" - " b,a,pt %%xcc, 1b\n" - ".previous" - : /* no outputs */ - : "r" (lock) - : "g5", "memory"); - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - int result; - asm volatile - ("ldstub [%1], %0\n" - "membar #StoreLoad | #StoreStore" - : "=r" (result) - : "r" (lock) - : "memory"); - return result == 0 ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - asm volatile - ("membar #StoreStore | #LoadStore\n" - "stb %%g0, [%0]" - : - : "r" (lock) - : "memory"); - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h b/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h deleted file mode 100644 index f65c13be1b..0000000000 --- a/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h +++ /dev/null @@ -1,105 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - Sparc v9 version. - Copyright (C) 1997-2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson <rth@tamu.edu>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, write to the Free Software Foundation, Inc., - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - int ret; - - __asm__ __volatile__("ldstub %1,%0" - : "=r" (ret), "=m" (*spinlock) : "m" (*spinlock)); - - return ret; -} - - -/* Memory barrier; default is to do nothing */ -#define MEMORY_BARRIER() \ - __asm__ __volatile__("membar #LoadLoad | #LoadStore | #StoreLoad | #StoreStore" : : : "memory") -/* Read barrier. */ -#define READ_MEMORY_BARRIER() \ - __asm__ __volatile__("membar #LoadLoad | #LoadStore" : : : "memory") -/* Write barrier. */ -#define WRITE_MEMORY_BARRIER() \ - __asm__ __volatile__("membar #StoreLoad | #StoreStore" : : : "memory") - - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME (stack_pointer + (2 * 128)) -register char *stack_pointer __asm__ ("%sp"); - - -/* Registers %g6 and %g7 are reserved by the ABI for "system use". The - TLS ABI specifies %g7 as the thread pointer. */ -struct _pthread_descr_struct; -register struct _pthread_descr_struct *__thread_self __asm__ ("%g7"); - -/* Return the thread descriptor for the current thread. */ -#define THREAD_SELF __thread_self - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr)) - - -/* Compare-and-swap for semaphores. */ - -#define HAS_COMPARE_AND_SWAP -PT_EI int -__compare_and_swap (long int *p, long int oldval, long int newval) -{ - long int readval; - - __asm__ __volatile__ ("casx [%4], %2, %0" - : "=r"(readval), "=m"(*p) - : "r"(oldval), "m"(*p), "r"(p), "0"(newval)); - MEMORY_BARRIER(); - return readval == oldval; -} - -/* Access to data in the thread descriptor is easy. */ -#define THREAD_GETMEM(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_GETMEM_NC(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_SETMEM(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) -#define THREAD_SETMEM_NC(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 32*1024*1024 - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/sparc/tcb-offsets.sym b/linuxthreads/sysdeps/sparc/tcb-offsets.sym deleted file mode 100644 index aee6be2570..0000000000 --- a/linuxthreads/sysdeps/sparc/tcb-offsets.sym +++ /dev/null @@ -1,4 +0,0 @@ -#include <sysdep.h> -#include <tls.h> - -MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads) diff --git a/linuxthreads/sysdeps/sparc/tls.h b/linuxthreads/sysdeps/sparc/tls.h deleted file mode 100644 index 2df97d61e4..0000000000 --- a/linuxthreads/sysdeps/sparc/tls.h +++ /dev/null @@ -1,115 +0,0 @@ -/* Definitions for thread-local data handling. linuxthreads/sparc version. - Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _TLS_H -#define _TLS_H - -#ifndef __ASSEMBLER__ - -# include <pt-machine.h> -# include <stdbool.h> -# include <stddef.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - struct - { - void *val; - bool is_static; - } pointer; -} dtv_t; - -typedef struct -{ - void *tcb; /* Pointer to the TCB. Not necessary the - thread descriptor used by libpthread. */ - dtv_t *dtv; - void *self; /* Pointer to the thread descriptor. */ - int multiple_threads; -} tcbhead_t; - -#else /* __ASSEMBLER__ */ -# include <tcb-offsets.h> -#endif /* __ASSEMBLER__ */ - -#ifdef HAVE_TLS_SUPPORT - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -# ifndef __ASSEMBLER__ -/* Get system call information. */ -# include <sysdep.h> - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -/* This is the size of the initial TCB. */ -# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) - -/* This is the size of the TCB. */ -# define TLS_TCB_SIZE sizeof (struct _pthread_descr_struct) - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* The TCB can have any size and the memory following the address the - thread pointer points to is unspecified. Allocate the TCB there. */ -# define TLS_TCB_AT_TP 1 - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(descr, dtvp) \ - ((tcbhead_t *) (descr))->dtv = (dtvp) + 1 - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(DTV) \ - (((tcbhead_t *) __thread_self)->dtv = (DTV)) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(descr) \ - (((tcbhead_t *) (descr))->dtv) - -/* Code to initially initialize the thread pointer. */ -# define TLS_INIT_TP(descr, secondcall) \ - (__thread_self = (__typeof (__thread_self)) (descr), NULL) - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - (((tcbhead_t *) __thread_self)->dtv) - -# endif - -#else - -# define NONTLS_INIT_TP \ - do { \ - static const tcbhead_t nontls_init_tp \ - = { .multiple_threads = 0 }; \ - __thread_self = (__typeof (__thread_self)) &nontls_init_tp; \ - } while (0) - -#endif /* USE_TLS */ - -#endif /* tls.h */ diff --git a/linuxthreads/sysdeps/unix/sysv/linux/Implies b/linuxthreads/sysdeps/unix/sysv/linux/Implies deleted file mode 100644 index f1b3e8939c..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/Implies +++ /dev/null @@ -1 +0,0 @@ -pthread diff --git a/linuxthreads/sysdeps/unix/sysv/linux/Makefile b/linuxthreads/sysdeps/unix/sysv/linux/Makefile deleted file mode 100644 index 38c6cbc1af..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -ifeq ($(subdir),linuxthreads) -sysdep_routines += register-atfork unregister-atfork -endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/Versions b/linuxthreads/sysdeps/unix/sysv/linux/Versions deleted file mode 100644 index 6cd3dbe372..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/Versions +++ /dev/null @@ -1,5 +0,0 @@ -libc { - GLIBC_2.3.2 { - __register_atfork; - } -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/allocalim.h b/linuxthreads/sysdeps/unix/sysv/linux/allocalim.h deleted file mode 100644 index f62f7d6e9f..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/allocalim.h +++ /dev/null @@ -1,26 +0,0 @@ -/* Determine whether block of given size can be allocated on the stack or not. - Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <limits.h> - -extern inline int __libc_use_alloca (size_t size) -{ - return (__builtin_expect (size <= PTHREAD_STACK_MIN / 4, 1) - || __libc_alloca_cutoff (size)); -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/allocrtsig.c b/linuxthreads/sysdeps/unix/sysv/linux/allocrtsig.c deleted file mode 100644 index af1581a4c3..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/allocrtsig.c +++ /dev/null @@ -1,87 +0,0 @@ -/* Handle real-time signal allocation. - Copyright (C) 1997,98,99,2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <signal.h> - -/* Sanity check. */ -#if !defined __SIGRTMIN || (__SIGRTMAX - __SIGRTMIN) < 3 -# error "This must not happen" -#endif - -static int current_rtmin; -static int current_rtmax; - -static int initialized; - -#include <testrtsig.h> - -static void -init (void) -{ - if (!kernel_has_rtsig ()) - { - current_rtmin = -1; - current_rtmax = -1; - } - else - { - current_rtmin = __SIGRTMIN + 3; - current_rtmax = __SIGRTMAX; - } - initialized = 1; -} - -/* Return number of available real-time signal with highest priority. */ -int -__libc_current_sigrtmin (void) -{ - if (!initialized) - init (); - return current_rtmin; -} -strong_alias (__libc_current_sigrtmin, __libc_current_sigrtmin_private); -libc_hidden_def (__libc_current_sigrtmin) - -/* Return number of available real-time signal with lowest priority. */ -int -__libc_current_sigrtmax (void) -{ - if (!initialized) - init (); - return current_rtmax; -} -strong_alias (__libc_current_sigrtmax, __libc_current_sigrtmax_private); -libc_hidden_def (__libc_current_sigrtmax) - -/* Allocate real-time signal with highest/lowest available - priority. Please note that we don't use a lock since we assume - this function to be called at program start. */ -int -__libc_allocate_rtsig (int high) -{ - if (!initialized) - init (); - if (current_rtmin == -1 || current_rtmin > current_rtmax) - /* We don't have anymore signal available. */ - return -1; - - return high ? current_rtmin++ : current_rtmax--; -} -strong_alias (__libc_allocate_rtsig, __libc_allocate_rtsig_private); diff --git a/linuxthreads/sysdeps/unix/sysv/linux/alpha/Makefile b/linuxthreads/sysdeps/unix/sysv/linux/alpha/Makefile deleted file mode 100644 index e03aee99fc..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/alpha/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -ifeq ($(subdir),linuxthreads) -libpthread-routines += ptw-sysdep ptw-sigblock ptw-sigprocmask -endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/alpha/Versions b/linuxthreads/sysdeps/unix/sysv/linux/alpha/Versions deleted file mode 100644 index d102772482..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/alpha/Versions +++ /dev/null @@ -1,6 +0,0 @@ -libpthread { - GLIBC_2.3.3 { - # Changed PTHREAD_STACK_MIN. - pthread_attr_setstack; pthread_attr_setstacksize; - } -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/alpha/aio_cancel.c b/linuxthreads/sysdeps/unix/sysv/linux/alpha/aio_cancel.c deleted file mode 100644 index 0d6da82919..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/alpha/aio_cancel.c +++ /dev/null @@ -1,33 +0,0 @@ -#include <shlib-compat.h> - -#define aio_cancel64 XXX -#include <aio.h> -#undef aio_cancel64 -#include <errno.h> - -extern __typeof (aio_cancel) __new_aio_cancel; -extern __typeof (aio_cancel) __old_aio_cancel; - -#define aio_cancel __new_aio_cancel - -#include <sysdeps/pthread/aio_cancel.c> - -#undef aio_cancel -strong_alias (__new_aio_cancel, __new_aio_cancel64); -versioned_symbol (librt, __new_aio_cancel, aio_cancel, GLIBC_2_3); -versioned_symbol (librt, __new_aio_cancel64, aio_cancel64, GLIBC_2_3); - -#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_3) - -#undef ECANCELED -#define aio_cancel __old_aio_cancel -#define ECANCELED 125 - -#include <sysdeps/pthread/aio_cancel.c> - -#undef aio_cancel -strong_alias (__old_aio_cancel, __old_aio_cancel64); -compat_symbol (librt, __old_aio_cancel, aio_cancel, GLIBC_2_1); -compat_symbol (librt, __old_aio_cancel64, aio_cancel64, GLIBC_2_1); - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h b/linuxthreads/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h deleted file mode 100644 index 96893c59da..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h +++ /dev/null @@ -1,92 +0,0 @@ -/* Minimum guaranteed maximum values for system limits. Linux/Alpha version. - Copyright (C) 1993-1998,2000,2002,2003,2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* The kernel header pollutes the namespace with the NR_OPEN symbol - and defines LINK_MAX although filesystems have different maxima. A - similar thing is true for OPEN_MAX: the limit can be changed at - runtime and therefore the macro must not be defined. Remove this - after including the header if necessary. */ -#ifndef NR_OPEN -# define __undef_NR_OPEN -#endif -#ifndef LINK_MAX -# define __undef_LINK_MAX -#endif -#ifndef OPEN_MAX -# define __undef_OPEN_MAX -#endif - -/* The kernel sources contain a file with all the needed information. */ -#include <linux/limits.h> - -/* Have to remove NR_OPEN? */ -#ifdef __undef_NR_OPEN -# undef NR_OPEN -# undef __undef_NR_OPEN -#endif -/* Have to remove LINK_MAX? */ -#ifdef __undef_LINK_MAX -# undef LINK_MAX -# undef __undef_LINK_MAX -#endif -/* Have to remove OPEN_MAX? */ -#ifdef __undef_OPEN_MAX -# undef OPEN_MAX -# undef __undef_OPEN_MAX -#endif - -/* The number of data keys per process. */ -#define _POSIX_THREAD_KEYS_MAX 128 -/* This is the value this implementation supports. */ -#define PTHREAD_KEYS_MAX 1024 - -/* Controlling the iterations of destructors for thread-specific data. */ -#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 -/* Number of iterations this implementation does. */ -#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS - -/* The number of threads per process. */ -#define _POSIX_THREAD_THREADS_MAX 64 -/* This is the value this implementation supports. */ -#define PTHREAD_THREADS_MAX 16384 - -/* Maximum amount by which a process can descrease its asynchronous I/O - priority level. */ -#define AIO_PRIO_DELTA_MAX 20 - -/* Minimum size for a thread. We are free to choose a reasonable value. */ -#define PTHREAD_STACK_MIN 24576 - -/* Maximum number of POSIX timers available. */ -#define TIMER_MAX 256 - -/* Maximum number of timer expiration overruns. */ -#define DELAYTIMER_MAX 2147483647 - -/* Maximum tty name length. */ -#define TTY_NAME_MAX 32 - -/* Maximum login name length. This is arbitrary. */ -#define LOGIN_NAME_MAX 256 - -/* Maximum host name length. */ -#define HOST_NAME_MAX 64 - -/* Maximum message queue priority level. */ -#define MQ_PRIO_MAX 32768 diff --git a/linuxthreads/sysdeps/unix/sysv/linux/alpha/bits/typesizes.h b/linuxthreads/sysdeps/unix/sysv/linux/alpha/bits/typesizes.h deleted file mode 100644 index a2724885e2..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/alpha/bits/typesizes.h +++ /dev/null @@ -1,66 +0,0 @@ -/* bits/typesizes.h -- underlying types for *_t. Linux/Alpha version. - Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _BITS_TYPES_H -# error "Never include <bits/typesizes.h> directly; use <sys/types.h> instead." -#endif - -#ifndef _BITS_TYPESIZES_H -#define _BITS_TYPESIZES_H 1 - -/* See <bits/types.h> for the meaning of these macros. This file exists so - that <bits/types.h> need not vary across different GNU platforms. */ - -#define __DEV_T_TYPE __U64_TYPE -#define __UID_T_TYPE __U32_TYPE -#define __GID_T_TYPE __U32_TYPE -#define __INO_T_TYPE __U32_TYPE -#define __INO64_T_TYPE __U64_TYPE -#define __MODE_T_TYPE __U32_TYPE -#define __NLINK_T_TYPE __U32_TYPE -#define __OFF_T_TYPE __SLONGWORD_TYPE -#define __OFF64_T_TYPE __S64_TYPE -#define __PID_T_TYPE __S32_TYPE -#define __RLIM_T_TYPE __ULONGWORD_TYPE -#define __RLIM64_T_TYPE __U64_TYPE -#define __BLKCNT_T_TYPE __U32_TYPE -#define __BLKCNT64_T_TYPE __U64_TYPE -#define __FSBLKCNT_T_TYPE __S32_TYPE -#define __FSBLKCNT64_T_TYPE __S64_TYPE -#define __FSFILCNT_T_TYPE __U32_TYPE -#define __FSFILCNT64_T_TYPE __U64_TYPE -#define __ID_T_TYPE __U32_TYPE -#define __CLOCK_T_TYPE __SLONGWORD_TYPE -#define __TIME_T_TYPE __SLONGWORD_TYPE -#define __USECONDS_T_TYPE __U32_TYPE -#define __SUSECONDS_T_TYPE __S64_TYPE -#define __DADDR_T_TYPE __S32_TYPE -#define __SWBLK_T_TYPE __SLONGWORD_TYPE -#define __KEY_T_TYPE __S32_TYPE -#define __CLOCKID_T_TYPE __S32_TYPE -#define __TIMER_T_TYPE __S32_TYPE -#define __BLKSIZE_T_TYPE __U32_TYPE -#define __FSID_T_TYPE struct { int __val[2]; } -#define __SSIZE_T_TYPE __SWORD_TYPE - -/* Number of descriptors that can fit in an `fd_set'. */ -#define __FD_SETSIZE 1024 - - -#endif /* bits/typesizes.h */ diff --git a/linuxthreads/sysdeps/unix/sysv/linux/alpha/pt-sigsuspend.S b/linuxthreads/sysdeps/unix/sysv/linux/alpha/pt-sigsuspend.S deleted file mode 100644 index 91e5c86782..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/alpha/pt-sigsuspend.S +++ /dev/null @@ -1,28 +0,0 @@ -/* Internal sigsuspend system call for LinuxThreads. Alpha version. - Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> - -#undef PSEUDO_PREPARE_ARGS -#define PSEUDO_PREPARE_ARGS ldq a0, 0(a0); - - .hidden __pthread_sigsuspend -PSEUDO_NOERRNO(__pthread_sigsuspend, sigsuspend, 1) - ret -PSEUDO_END_NOERRNO(__pthread_sigsuspend) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h deleted file mode 100644 index 9ea779e0d5..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h +++ /dev/null @@ -1,146 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread - -# ifdef PROF -# define PSEUDO_PROF \ - .set noat; \ - lda AT, _mcount; \ - jsr AT, (AT), _mcount; \ - .set at -# else -# define PSEUDO_PROF -# endif - -/* ??? Assumes that nothing comes between PSEUDO and PSEUDO_END - besides "ret". */ - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .globl name; \ - .align 4; \ - .type name, @function; \ - .usepv name, std; \ - cfi_startproc; \ -__LABEL(name) \ - ldgp gp, 0(pv); \ - PSEUDO_PROF; \ - PSEUDO_PREPARE_ARGS \ - SINGLE_THREAD_P(t0); \ - bne t0, $pseudo_cancel; \ - lda v0, SYS_ify(syscall_name); \ - call_pal PAL_callsys; \ - bne a3, SYSCALL_ERROR_LABEL; \ -__LABEL($pseudo_ret) \ - .subsection 2; \ -__LABEL($pseudo_cancel) \ - subq sp, 64, sp; \ - cfi_def_cfa_offset(64); \ - stq ra, 0(sp); \ - cfi_offset(ra, -64); \ - SAVE_ARGS_##args; \ - CENABLE; \ - LOAD_ARGS_##args; \ - lda v0, SYS_ify(syscall_name); \ - call_pal PAL_callsys; \ - stq v0, 8(sp); \ - bne a3, $multi_error; \ - CDISABLE; \ - ldq ra, 0(sp); \ - ldq v0, 8(sp); \ - addq sp, 64, sp; \ - cfi_remember_state; \ - cfi_restore(ra); \ - cfi_def_cfa_offset(0); \ - ret; \ - cfi_restore_state; \ -__LABEL($multi_error) \ - CDISABLE; \ - ldq ra, 0(sp); \ - ldq v0, 8(sp); \ - addq sp, 64, sp; \ - cfi_restore(ra); \ - cfi_def_cfa_offset(0); \ -__LABEL($syscall_error) \ - SYSCALL_ERROR_HANDLER; \ - .previous - -# undef PSEUDO_END -# define PSEUDO_END(sym) \ - .subsection 2; \ - cfi_endproc; \ - .size sym, .-sym - -# define SAVE_ARGS_0 /* Nothing. */ -# define SAVE_ARGS_1 SAVE_ARGS_0; stq a0, 8(sp) -# define SAVE_ARGS_2 SAVE_ARGS_1; stq a1, 16(sp) -# define SAVE_ARGS_3 SAVE_ARGS_2; stq a2, 24(sp) -# define SAVE_ARGS_4 SAVE_ARGS_3; stq a3, 32(sp) -# define SAVE_ARGS_5 SAVE_ARGS_4; stq a4, 40(sp) -# define SAVE_ARGS_6 SAVE_ARGS_5; stq a5, 48(sp) - -# define LOAD_ARGS_0 /* Nothing. */ -# define LOAD_ARGS_1 LOAD_ARGS_0; ldq a0, 8(sp) -# define LOAD_ARGS_2 LOAD_ARGS_1; ldq a1, 16(sp) -# define LOAD_ARGS_3 LOAD_ARGS_2; ldq a2, 24(sp) -# define LOAD_ARGS_4 LOAD_ARGS_3; ldq a3, 32(sp) -# define LOAD_ARGS_5 LOAD_ARGS_4; ldq a4, 40(sp) -# define LOAD_ARGS_6 LOAD_ARGS_5; ldq a5, 48(sp) - -# ifdef IS_IN_libpthread -# define __local_enable_asynccancel __pthread_enable_asynccancel -# define __local_disable_asynccancel __pthread_disable_asynccancel -# define __local_multiple_threads __pthread_multiple_threads -# else -# define __local_enable_asynccancel __libc_enable_asynccancel -# define __local_disable_asynccancel __libc_disable_asynccancel -# define __local_multiple_threads __libc_multiple_threads -# endif - -# ifdef PIC -# define CENABLE bsr ra, __local_enable_asynccancel !samegp -# define CDISABLE bsr ra, __local_disable_asynccancel !samegp -# else -# define CENABLE jsr ra, __local_enable_asynccancel; ldgp ra, 0(gp) -# define CDISABLE jsr ra, __local_disable_asynccancel; ldgp ra, 0(gp) -# endif - -# ifndef __ASSEMBLER__ -extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P \ - __builtin_expect (__local_multiple_threads == 0, 1) -# elif defined(PIC) -# define SINGLE_THREAD_P(reg) ldl reg, __local_multiple_threads(gp) !gprel -# else -# define SINGLE_THREAD_P(reg) \ - ldah reg, __local_multiple_threads(gp) !gprelhigh; \ - ldl reg, __local_multiple_threads(reg) !gprellow -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/alpha/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/alpha/vfork.S deleted file mode 100644 index cfaae10606..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/alpha/vfork.S +++ /dev/null @@ -1,70 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - - -#include <sysdep-cancel.h> - - .align 4 - .globl __vfork - .type __vfork, @function - .usepv __vfork, std - cfi_startproc -__vfork: - ldgp gp, 0(pv) - PSEUDO_PROF - -#ifdef SHARED - ldq t0, __libc_pthread_functions(gp) !gprel - bne t0, HIDDEN_JUMPTARGET (__fork) !samegp -#else - .weak pthread_create - ldq t0, pthread_create(gp) !literal - bne t0, $do_fork -#endif - - lda v0, SYS_ify(vfork) - call_pal PAL_callsys - bne a3, SYSCALL_ERROR_LABEL - ret - -#ifndef SHARED - /* Can't tail-call due to possible mismatch between GP in - fork and vfork object files. */ -$do_fork: - subq sp, 16, sp - cfi_adjust_cfa_offset(16) - stq ra, 0(sp) - cfi_offset(ra, -16) - jsr ra, HIDDEN_JUMPTARGET (__fork) - ldgp gp, 0(ra) - ldq ra, 0(sp) - addq sp, 16, sp - cfi_restore(ra) - cfi_adjust_cfa_offset(-16) - ret - -$syscall_error: - SYSCALL_ERROR_HANDLER -#endif - - cfi_endproc - .size __vfork, .-__vfork - -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h b/linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h deleted file mode 100644 index ed6c3c589b..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h +++ /dev/null @@ -1,92 +0,0 @@ -/* Minimum guaranteed maximum values for system limits. Linux version. - Copyright (C) 1993-1998,2000,2002,2003,2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* The kernel header pollutes the namespace with the NR_OPEN symbol - and defines LINK_MAX although filesystems have different maxima. A - similar thing is true for OPEN_MAX: the limit can be changed at - runtime and therefore the macro must not be defined. Remove this - after including the header if necessary. */ -#ifndef NR_OPEN -# define __undef_NR_OPEN -#endif -#ifndef LINK_MAX -# define __undef_LINK_MAX -#endif -#ifndef OPEN_MAX -# define __undef_OPEN_MAX -#endif - -/* The kernel sources contain a file with all the needed information. */ -#include <linux/limits.h> - -/* Have to remove NR_OPEN? */ -#ifdef __undef_NR_OPEN -# undef NR_OPEN -# undef __undef_NR_OPEN -#endif -/* Have to remove LINK_MAX? */ -#ifdef __undef_LINK_MAX -# undef LINK_MAX -# undef __undef_LINK_MAX -#endif -/* Have to remove OPEN_MAX? */ -#ifdef __undef_OPEN_MAX -# undef OPEN_MAX -# undef __undef_OPEN_MAX -#endif - -/* The number of data keys per process. */ -#define _POSIX_THREAD_KEYS_MAX 128 -/* This is the value this implementation supports. */ -#define PTHREAD_KEYS_MAX 1024 - -/* Controlling the iterations of destructors for thread-specific data. */ -#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 -/* Number of iterations this implementation does. */ -#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS - -/* The number of threads per process. */ -#define _POSIX_THREAD_THREADS_MAX 64 -/* This is the value this implementation supports. */ -#define PTHREAD_THREADS_MAX 16384 - -/* Maximum amount by which a process can descrease its asynchronous I/O - priority level. */ -#define AIO_PRIO_DELTA_MAX 20 - -/* Minimum size for a thread. We are free to choose a reasonable value. */ -#define PTHREAD_STACK_MIN 16384 - -/* Maximum number of POSIX timers available. */ -#define TIMER_MAX 256 - -/* Maximum number of timer expiration overruns. */ -#define DELAYTIMER_MAX 2147483647 - -/* Maximum tty name length. */ -#define TTY_NAME_MAX 32 - -/* Maximum login name length. This is arbitrary. */ -#define LOGIN_NAME_MAX 256 - -/* Maximum host name length. */ -#define HOST_NAME_MAX 64 - -/* Maximum message queue priority level. */ -#define MQ_PRIO_MAX 32768 diff --git a/linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h b/linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h deleted file mode 100644 index 71b7e74649..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h +++ /dev/null @@ -1,181 +0,0 @@ -/* Define POSIX options for Linux. - Copyright (C) 1996-2001, 2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _POSIX_OPT_H -#define _POSIX_OPT_H 1 - -/* Job control is supported. */ -#define _POSIX_JOB_CONTROL 1 - -/* Processes have a saved set-user-ID and a saved set-group-ID. */ -#define _POSIX_SAVED_IDS 1 - -/* Priority scheduling is supported. */ -#define _POSIX_PRIORITY_SCHEDULING 200112L - -/* Synchronizing file data is supported. */ -#define _POSIX_SYNCHRONIZED_IO 200112L - -/* The fsync function is present. */ -#define _POSIX_FSYNC 200112L - -/* Mapping of files to memory is supported. */ -#define _POSIX_MAPPED_FILES 200112L - -/* Locking of all memory is supported. */ -#define _POSIX_MEMLOCK 200112L - -/* Locking of ranges of memory is supported. */ -#define _POSIX_MEMLOCK_RANGE 200112L - -/* Setting of memory protections is supported. */ -#define _POSIX_MEMORY_PROTECTION 200112L - -/* Only root can change owner of file. */ -#define _POSIX_CHOWN_RESTRICTED 1 - -/* `c_cc' member of 'struct termios' structure can be disabled by - using the value _POSIX_VDISABLE. */ -#define _POSIX_VDISABLE '\0' - -/* Filenames are not silently truncated. */ -#define _POSIX_NO_TRUNC 1 - -/* X/Open realtime support is available. */ -#define _XOPEN_REALTIME 1 - -/* X/Open realtime thread support is available. */ -#define _XOPEN_REALTIME_THREADS 1 - -/* XPG4.2 shared memory is supported. */ -#define _XOPEN_SHM 1 - -/* Tell we have POSIX threads. */ -#define _POSIX_THREADS 200112L - -/* We have the reentrant functions described in POSIX. */ -#define _POSIX_REENTRANT_FUNCTIONS 1 -#define _POSIX_THREAD_SAFE_FUNCTIONS 200112L - -/* We provide priority scheduling for threads. */ -#define _POSIX_THREAD_PRIORITY_SCHEDULING 200112L - -/* We support user-defined stack sizes. */ -#define _POSIX_THREAD_ATTR_STACKSIZE 200112L - -/* We support user-defined stacks. */ -#define _POSIX_THREAD_ATTR_STACKADDR 200112L - -/* We support POSIX.1b semaphores, but only the non-shared form for now. */ -#define _POSIX_SEMAPHORES 200112L - -/* Real-time signals are supported. */ -#define _POSIX_REALTIME_SIGNALS 200112L - -/* We support asynchronous I/O. */ -#define _POSIX_ASYNCHRONOUS_IO 200112L -#define _POSIX_ASYNC_IO 1 -/* Alternative name for Unix98. */ -#define _LFS_ASYNCHRONOUS_IO 1 -/* Support for prioritization is also available. */ -#define _POSIX_PRIORITIZED_IO 200112L - -/* The LFS support in asynchronous I/O is also available. */ -#define _LFS64_ASYNCHRONOUS_IO 1 - -/* The rest of the LFS is also available. */ -#define _LFS_LARGEFILE 1 -#define _LFS64_LARGEFILE 1 -#define _LFS64_STDIO 1 - -/* POSIX shared memory objects are implemented. */ -#define _POSIX_SHARED_MEMORY_OBJECTS 200112L - -/* CPU-time clocks support needs to be checked at runtime. */ -#define _POSIX_CPUTIME 0 - -/* Clock support in threads must be also checked at runtime. */ -#define _POSIX_THREAD_CPUTIME 0 - -/* GNU libc provides regular expression handling. */ -#define _POSIX_REGEXP 1 - -/* Reader/Writer locks are available. */ -#define _POSIX_READER_WRITER_LOCKS 200112L - -/* We have a POSIX shell. */ -#define _POSIX_SHELL 1 - -/* We support the Timeouts option. */ -#define _POSIX_TIMEOUTS 200112L - -/* We support spinlocks. */ -#define _POSIX_SPIN_LOCKS 200112L - -/* The `spawn' function family is supported. */ -#define _POSIX_SPAWN 200112L - -/* We have POSIX timers. */ -#define _POSIX_TIMERS 200112L - -/* The barrier functions are available. */ -#define _POSIX_BARRIERS 200112L - -/* POSIX message queues are available. */ -#define _POSIX_MESSAGE_PASSING 200112L - -/* Thread process-shared synchronization is not supported. */ -#define _POSIX_THREAD_PROCESS_SHARED -1 - -/* The monotonic clock might be available. */ -#define _POSIX_MONOTONIC_CLOCK 0 - -/* The clock selection interfaces are not available. */ -#define _POSIX_CLOCK_SELECTION -1 - -/* Advisory information interfaces are available. */ -#define _POSIX_ADVISORY_INFO 200112L - -/* IPv6 support is available. */ -#define _POSIX_IPV6 200112L - -/* Raw socket support is available. */ -#define _POSIX_RAW_SOCKETS 200112L - -/* We have at least one terminal. */ -#define _POSIX2_CHAR_TERM 200112L - -/* Neither process nor thread sporadic server interfaces is available. */ -#define _POSIX_SPORADIC_SERVER -1 -#define _POSIX_THREAD_SPORADIC_SERVER -1 - -/* trace.h is not available. */ -#define _POSIX_TRACE -1 -#define _POSIX_TRACE_EVENT_FILTER -1 -#define _POSIX_TRACE_INHERIT -1 -#define _POSIX_TRACE_LOG -1 - -/* Typed memory objects are not available. */ -#define _POSIX_TYPED_MEMORY_OBJECTS -1 - -/* No support for priority inheritance or protection. */ -#define _POSIX_THREAD_PRIO_INHERIT -1 -#define _POSIX_THREAD_PRIO_PROTECT -1 - -#endif /* posix_opt.h */ diff --git a/linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h b/linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h deleted file mode 100644 index 960bde18a9..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h +++ /dev/null @@ -1,38 +0,0 @@ -/* Signal handling function for threaded programs. - Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _BITS_SIGTHREAD_H -#define _BITS_SIGTHREAD_H 1 - -#if !defined _SIGNAL_H && !defined _PTHREAD_H -# error "Never include this file directly. Use <pthread.h> instead" -#endif - -/* Functions for handling signals. */ - -/* Modify the signal mask for the calling thread. The arguments have - the same meaning as for sigprocmask(2). */ -extern int pthread_sigmask (int __how, - __const __sigset_t *__restrict __newmask, - __sigset_t *__restrict __oldmask)__THROW; - -/* Send signal SIGNO to the given thread. */ -extern int pthread_kill (pthread_t __threadid, int __signo) __THROW; - -#endif /* bits/sigthread.h */ diff --git a/linuxthreads/sysdeps/unix/sysv/linux/execve.c b/linuxthreads/sysdeps/unix/sysv/linux/execve.c deleted file mode 100644 index 9fa912b90d..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/execve.c +++ /dev/null @@ -1,73 +0,0 @@ -/* Copyright (C) 1999, 2000, 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <unistd.h> - -#include <sysdep.h> -#include <alloca.h> -#include <sys/syscall.h> -#include <bp-checks.h> - -extern int __syscall_execve (const char *__unbounded file, - char *__unbounded const *__unbounded argv, - char *__unbounded const *__unbounded envp); -extern void __pthread_kill_other_threads_np (void); -weak_extern (__pthread_kill_other_threads_np) - - -int -__execve (file, argv, envp) - const char *file; - char *const argv[]; - char *const envp[]; -{ - /* If this is a threaded application kill all other threads. */ - if (__pthread_kill_other_threads_np) - __pthread_kill_other_threads_np (); -#if __BOUNDED_POINTERS__ - { - char *const *v; - int i; - char *__unbounded *__unbounded ubp_argv; - char *__unbounded *__unbounded ubp_envp; - char *__unbounded *__unbounded ubp_v; - - for (v = argv; *v; v++) - ; - i = v - argv + 1; - ubp_argv = (char *__unbounded *__unbounded) alloca (sizeof (*ubp_argv) * i); - for (v = argv, ubp_v = ubp_argv; --i; v++, ubp_v++) - *ubp_v = CHECK_STRING (*v); - *ubp_v = 0; - - for (v = envp; *v; v++) - ; - i = v - envp + 1; - ubp_envp = (char *__unbounded *__unbounded) alloca (sizeof (*ubp_envp) * i); - for (v = envp, ubp_v = ubp_envp; --i; v++, ubp_v++) - *ubp_v = CHECK_STRING (*v); - *ubp_v = 0; - - return INLINE_SYSCALL (execve, 3, CHECK_STRING (file), ubp_argv, ubp_envp); - } -#else - return INLINE_SYSCALL (execve, 3, file, argv, envp); -#endif -} -weak_alias (__execve, execve) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/fork.c b/linuxthreads/sysdeps/unix/sysv/linux/fork.c deleted file mode 100644 index 00eb787093..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/fork.c +++ /dev/null @@ -1,43 +0,0 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <fork.h> -#include <bits/libc-lock.h> - -#ifndef SHARED -weak_extern (__pthread_fork); -#endif - -struct fork_block __fork_block = -{ - .lock = PTHREAD_MUTEX_INITIALIZER, - .prepare_list = { &__fork_block.prepare_list, &__fork_block.prepare_list }, - .parent_list = { &__fork_block.parent_list, &__fork_block.parent_list }, - .child_list = { &__fork_block.child_list, &__fork_block.child_list } -}; - -pid_t -__libc_fork (void) -{ - return __libc_maybe_call2 (pthread_fork, (&__fork_block), ARCH_FORK ()); -} -weak_alias (__libc_fork, __fork) -libc_hidden_def (__fork) -weak_alias (__libc_fork, fork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/fork.h b/linuxthreads/sysdeps/unix/sysv/linux/fork.h deleted file mode 100644 index 76708e3e39..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/fork.h +++ /dev/null @@ -1,60 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <list.h> -#include <bits/libc-lock.h> -#include <sysdep.h> - -struct fork_block -{ - /* Lock to protect handling of fork handlers. */ - __libc_lock_define (, lock); - - /* Lists of registered fork handlers. */ - list_t prepare_list; - list_t parent_list; - list_t child_list; -}; - -extern struct fork_block __fork_block attribute_hidden; - -/* Elements of the fork handler lists. */ -struct fork_handler -{ - list_t list; - void (*handler) (void); - void *dso_handle; -}; - - -/* Function to call to unregister fork handlers. */ -extern void __unregister_atfork (void *dso_handle) attribute_hidden; -#define UNREGISTER_ATFORK(dso_handle) __unregister_atfork (dso_handle) - - -/* C library side function to register new fork handlers. */ -extern int __register_atfork (void (*__prepare) (void), - void (*__parent) (void), - void (*__child) (void), - void *dso_handle); -libc_hidden_proto (__register_atfork) - -#ifndef ARCH_FORK -# define ARCH_FORK() INLINE_SYSCALL (fork, 0) -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/hppa/aio_cancel.c b/linuxthreads/sysdeps/unix/sysv/linux/hppa/aio_cancel.c deleted file mode 100644 index 0d6da82919..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/hppa/aio_cancel.c +++ /dev/null @@ -1,33 +0,0 @@ -#include <shlib-compat.h> - -#define aio_cancel64 XXX -#include <aio.h> -#undef aio_cancel64 -#include <errno.h> - -extern __typeof (aio_cancel) __new_aio_cancel; -extern __typeof (aio_cancel) __old_aio_cancel; - -#define aio_cancel __new_aio_cancel - -#include <sysdeps/pthread/aio_cancel.c> - -#undef aio_cancel -strong_alias (__new_aio_cancel, __new_aio_cancel64); -versioned_symbol (librt, __new_aio_cancel, aio_cancel, GLIBC_2_3); -versioned_symbol (librt, __new_aio_cancel64, aio_cancel64, GLIBC_2_3); - -#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_3) - -#undef ECANCELED -#define aio_cancel __old_aio_cancel -#define ECANCELED 125 - -#include <sysdeps/pthread/aio_cancel.c> - -#undef aio_cancel -strong_alias (__old_aio_cancel, __old_aio_cancel64); -compat_symbol (librt, __old_aio_cancel, aio_cancel, GLIBC_2_1); -compat_symbol (librt, __old_aio_cancel64, aio_cancel64, GLIBC_2_1); - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h b/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h deleted file mode 100644 index 9b13400286..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h +++ /dev/null @@ -1,27 +0,0 @@ -/* PA-RISC specific definitions for spinlock initializers. - Copyright (C) 2000, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* Initial value of a spinlock. PA-RISC only implements atomic load - and clear so this must be non-zero. */ -#define __LT_SPINLOCK_INIT 1 - -/* Macros for lock initializers, using the above definition. */ -#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT } -#define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT } -#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT } diff --git a/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h b/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h deleted file mode 100644 index 817cf59222..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h +++ /dev/null @@ -1,73 +0,0 @@ -/* HP-PARISC macro definitions for mutexes, thread-specific data - and parameters for malloc. - Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _MALLOC_MACHINE_H -#define _MALLOC_MACHINE_H - -#undef thread_atfork_static - -#include <atomic.h> -#include <bits/libc-lock.h> - -__libc_lock_define (typedef, mutex_t) - -/* Since our lock structure does not tolerate being initialized to zero, we must - modify the standard function calls made by malloc */ -# define mutex_init(m) \ - __libc_maybe_call (__pthread_mutex_init, (m, NULL), \ - (((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT),(*(int *)(m))) ) -# define mutex_lock(m) \ - __libc_maybe_call (__pthread_mutex_lock, (m), \ - (__load_and_clear(&((m)->__m_lock.__spinlock)), 0)) -# define mutex_trylock(m) \ - __libc_maybe_call (__pthread_mutex_trylock, (m), \ - (*(int *)(m) ? 1 : (__load_and_clear(&((m)->__m_lock.__spinlock)), 0))) -# define mutex_unlock(m) \ - __libc_maybe_call (__pthread_mutex_unlock, (m), \ - (((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT), (*(int *)(m))) ) - -/* This is defined by newer gcc version unique for each module. */ -extern void *__dso_handle __attribute__ ((__weak__)); - -#include <fork.h> - -#ifdef SHARED -# define thread_atfork(prepare, parent, child) \ - __register_atfork (prepare, parent, child, __dso_handle) -#else -# define thread_atfork(prepare, parent, child) \ - __register_atfork (prepare, parent, child, \ - &__dso_handle == NULL ? NULL : __dso_handle) -#endif - -/* thread specific data for glibc */ - -#include <bits/libc-tsd.h> - -typedef int tsd_key_t[1]; /* no key data structure, libc magic does it */ -__libc_tsd_define (static, MALLOC) /* declaration/common definition */ -#define tsd_key_create(key, destr) ((void) (key)) -#define tsd_setspecific(key, data) __libc_tsd_set (MALLOC, (data)) -#define tsd_getspecific(key, vptr) ((vptr) = __libc_tsd_get (MALLOC)) - -#include <sysdeps/generic/malloc-machine.h> - -#endif /* !defined(_MALLOC_MACHINE_H) */ diff --git a/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c b/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c deleted file mode 100644 index 27f850cf8f..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c +++ /dev/null @@ -1,109 +0,0 @@ -/* Special .init and .fini section support for HPPA. Linuxthreads version. - Copyright (C) 2001, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it - and/or modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - The GNU C Library is distributed in the hope that it will be - useful, but WITHOUT ANY WARRANTY; without even the implied warranty - of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* This file is compiled into assembly code which is then munged by a sed - script into two files: crti.s and crtn.s. - - * crti.s puts a function prologue at the beginning of the - .init and .fini sections and defines global symbols for - those addresses, so they can be called as functions. - - * crtn.s puts the corresponding function epilogues - in the .init and .fini sections. */ - -/* If we use the standard C version, the linkage table pointer won't - be properly preserved due to the splitting up of function prologues - and epilogues. Therefore we write these in assembly to make sure - they do the right thing. */ - -__asm__ ( -"#include \"defs.h\"\n" -"\n" -"/*@HEADER_ENDS*/\n" -"\n" -"/*@_init_PROLOG_BEGINS*/\n" -" .section .init\n" -" .align 4\n" -" .globl _init\n" -" .type _init,@function\n" -"_init:\n" -" stw %rp,-20(%sp)\n" -" stwm %r4,64(%sp)\n" -" stw %r19,-32(%sp)\n" -" bl __pthread_initialize_minimal,%rp\n" -" copy %r19,%r4 /* delay slot */\n" -" copy %r4,%r19\n" -"/*@_init_PROLOG_ENDS*/\n" -"\n" -"/*@_init_EPILOG_BEGINS*/\n" -"/* Here is the tail end of _init. */\n" -" .section .init\n" -" ldw -84(%sp),%rp\n" -" copy %r4,%r19\n" -" bv %r0(%rp)\n" -"_end_init:\n" -" ldwm -64(%sp),%r4\n" -"\n" -"/* Our very own unwind info, because the assembler can't handle\n" -" functions split into two or more pieces. */\n" -" .section .PARISC.unwind,\"a\",@progbits\n" -" .extern _init\n" -" .word _init, _end_init\n" -" .byte 0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n" -"\n" -"/*@_init_EPILOG_ENDS*/\n" -"\n" -"/*@_fini_PROLOG_BEGINS*/\n" -" .section .fini\n" -" .align 4\n" -" .globl _fini\n" -" .type _fini,@function\n" -"_fini:\n" -" stw %rp,-20(%sp)\n" -" stwm %r4,64(%sp)\n" -" stw %r19,-32(%sp)\n" -" copy %r19,%r4\n" -"/*@_fini_PROLOG_ENDS*/\n" -"\n" -"/*@_fini_EPILOG_BEGINS*/\n" -" .section .fini\n" -" ldw -84(%sp),%rp\n" -" copy %r4,%r19\n" -" bv %r0(%rp)\n" -"_end_fini:\n" -" ldwm -64(%sp),%r4\n" -"\n" -" .section .PARISC.unwind,\"a\",@progbits\n" -" .extern _fini\n" -" .word _fini, _end_fini\n" -" .byte 0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n" -"\n" -"/*@_fini_EPILOG_ENDS*/\n" -"\n" -"/*@TRAILER_BEGINS*/\n" -); diff --git a/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h deleted file mode 100644 index 134977e074..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h +++ /dev/null @@ -1,189 +0,0 @@ -/* cancellable system calls for Linux/HPPA. - Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# ifndef NO_ERROR -# define NO_ERROR -0x1000 -# endif - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - ENTRY (name) \ - SINGLE_THREAD_P ASM_LINE_SEP \ - cmpib,<> 0,%ret0,Lpseudo_cancel ASM_LINE_SEP \ - nop ASM_LINE_SEP \ - DO_CALL(syscall_name, args) ASM_LINE_SEP \ - /* DONE! */ ASM_LINE_SEP \ - bv 0(2) ASM_LINE_SEP \ - nop ASM_LINE_SEP \ - Lpseudo_cancel: ASM_LINE_SEP \ - /* store return ptr */ ASM_LINE_SEP \ - stw %rp, -20(%sr0,%sp) ASM_LINE_SEP \ - /* save syscall args */ ASM_LINE_SEP \ - PUSHARGS_##args /* MACRO */ ASM_LINE_SEP \ - STW_PIC ASM_LINE_SEP \ - CENABLE /* FUNC CALL */ ASM_LINE_SEP \ - ldo 64(%sp), %sp ASM_LINE_SEP \ - ldo -64(%sp), %sp ASM_LINE_SEP \ - LDW_PIC ASM_LINE_SEP \ - /* restore syscall args */ ASM_LINE_SEP \ - POPARGS_##args ASM_LINE_SEP \ - /* save r4 in arg0 stack slot */ ASM_LINE_SEP \ - stw %r4, -36(%sr0,%sp) ASM_LINE_SEP \ - /* save mask from cenable */ ASM_LINE_SEP \ - copy %ret0, %r4 ASM_LINE_SEP \ - ble 0x100(%sr2,%r0) ASM_LINE_SEP \ - ldi SYS_ify (syscall_name), %r20 ASM_LINE_SEP \ - LDW_PIC ASM_LINE_SEP \ - /* pass mask as arg0 to cdisable */ ASM_LINE_SEP \ - copy %r4, %r26 ASM_LINE_SEP \ - copy %ret0, %r4 ASM_LINE_SEP \ - CDISABLE ASM_LINE_SEP \ - ldo 64(%sp), %sp ASM_LINE_SEP \ - ldo -64(%sp), %sp ASM_LINE_SEP \ - LDW_PIC ASM_LINE_SEP \ - /* compare error */ ASM_LINE_SEP \ - ldi NO_ERROR,%r1 ASM_LINE_SEP \ - /* branch if no error */ ASM_LINE_SEP \ - cmpb,>>=,n %r1,%r4,Lpre_end ASM_LINE_SEP \ - nop ASM_LINE_SEP \ - SYSCALL_ERROR_HANDLER ASM_LINE_SEP \ - ldo 64(%sp), %sp ASM_LINE_SEP \ - ldo -64(%sp), %sp ASM_LINE_SEP \ - /* No need to LDW_PIC */ ASM_LINE_SEP \ - /* make syscall res value positive */ ASM_LINE_SEP \ - sub %r0, %r4, %r4 ASM_LINE_SEP \ - /* store into errno location */ ASM_LINE_SEP \ - stw %r4, 0(%sr0,%ret0) ASM_LINE_SEP \ - /* return -1 */ ASM_LINE_SEP \ - ldo -1(%r0), %ret0 ASM_LINE_SEP \ - Lpre_end: ASM_LINE_SEP \ - ldw -20(%sr0,%sp), %rp ASM_LINE_SEP \ - /* No need to LDW_PIC */ ASM_LINE_SEP \ - ldw -36(%sr0,%sp), %r4 ASM_LINE_SEP - -/* Save arguments into our frame */ -# define PUSHARGS_0 /* nothing to do */ -# define PUSHARGS_1 PUSHARGS_0 stw %r26, -36(%sr0,%sp) ASM_LINE_SEP -# define PUSHARGS_2 PUSHARGS_1 stw %r25, -40(%sr0,%sp) ASM_LINE_SEP -# define PUSHARGS_3 PUSHARGS_2 stw %r24, -44(%sr0,%sp) ASM_LINE_SEP -# define PUSHARGS_4 PUSHARGS_3 stw %r23, -48(%sr0,%sp) ASM_LINE_SEP -# define PUSHARGS_5 PUSHARGS_4 /* Args are on the stack... */ -# define PUSHARGS_6 PUSHARGS_5 - -/* Bring them back from the stack */ -# define POPARGS_0 /* nothing to do */ -# define POPARGS_1 POPARGS_0 ldw -36(%sr0,%sp), %r26 ASM_LINE_SEP -# define POPARGS_2 POPARGS_1 ldw -40(%sr0,%sp), %r25 ASM_LINE_SEP -# define POPARGS_3 POPARGS_2 ldw -44(%sr0,%sp), %r24 ASM_LINE_SEP -# define POPARGS_4 POPARGS_3 ldw -48(%sr0,%sp), %r23 ASM_LINE_SEP -# define POPARGS_5 POPARGS_4 ldw -52(%sr0,%sp), %r22 ASM_LINE_SEP -# define POPARGS_6 POPARGS_5 ldw -54(%sr0,%sp), %r21 ASM_LINE_SEP - -# ifdef IS_IN_libpthread -# ifdef PIC -# define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \ - bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \ - bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP -# else -# define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \ - bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \ - bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP -# endif -# elif !defined NOT_IN_libc -# ifdef PIC -# define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \ - bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __libc_disable_asynccancel,code ASM_LINE_SEP \ - bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP -# else -# define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \ - bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __libc_disable_asynccancel,code ASM_LINE_SEP \ - bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP -# endif -# else -# ifdef PIC -# define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \ - bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \ - bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP -# else -# define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \ - bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \ - bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP -# endif -# endif - -/* p_header.multiple_threads is +12 from the pthread_descr struct start, - We could have called __get_cr27() but we really want less overhead */ -# define MULTIPLE_THREADS_OFFSET 0xC - -/* cr27 has been initialized to 0x0 by kernel */ -# define NO_THREAD_CR27 0x0 - -# ifdef IS_IN_libpthread -# define __local_multiple_threads __pthread_multiple_threads -# elif !defined NOT_IN_libc -# define __local_multiple_threads __libc_multiple_threads -# else -# define __local_multiple_threads __librt_multiple_threads -# endif - -# ifndef __ASSEMBLER__ - extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# else -/* This ALT version requires newer kernel support */ -# define SINGLE_THREAD_P_MFCTL \ - mfctl %cr27, %ret0 ASM_LINE_SEP \ - cmpib,= NO_THREAD_CR27,%ret0,Lstp ASM_LINE_SEP \ - nop ASM_LINE_SEP \ - ldw MULTIPLE_THREADS_OFFSET(%sr0,%ret0),%ret0 ASM_LINE_SEP \ - Lstp: ASM_LINE_SEP -# ifdef PIC -/* Slower version uses GOT to get value of __local_multiple_threads */ -# define SINGLE_THREAD_P \ - addil LT%__local_multiple_threads, %r19 ASM_LINE_SEP \ - ldw RT%__local_multiple_threads(%sr0,%r1), %ret0 ASM_LINE_SEP \ - ldw 0(%sr0,%ret0), %ret0 ASM_LINE_SEP -# else - /* Slow non-pic version using DP */ -# define SINGLE_THREAD_P \ - addil LR%__local_multiple_threads-$global$,%r27 ASM_LINE_SEP \ - ldw RR%__local_multiple_threads-$global$(%sr0,%r1),%ret0 ASM_LINE_SEP -# endif -# endif -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif -/* !defined NOT_IN_libc || defined IS_IN_libpthread */ diff --git a/linuxthreads/sysdeps/unix/sysv/linux/i386/dl-sysdep.h b/linuxthreads/sysdeps/unix/sysv/linux/i386/dl-sysdep.h deleted file mode 100644 index 5355310ccd..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/i386/dl-sysdep.h +++ /dev/null @@ -1,64 +0,0 @@ -/* System-specific settings for dynamic linker code. IA-32 version. - Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _DL_SYSDEP_H -#define _DL_SYSDEP_H 1 - -/* This macro must be defined to either 0 or 1. - - If 1, then an errno global variable hidden in ld.so will work right with - all the errno-using libc code compiled for ld.so, and there is never a - need to share the errno location with libc. This is appropriate only if - all the libc functions that ld.so uses are called without PLT and always - get the versions linked into ld.so rather than the libc ones. */ - -#ifdef IS_IN_rtld -# define RTLD_PRIVATE_ERRNO 1 -#else -# define RTLD_PRIVATE_ERRNO 0 -#endif - -/* Traditionally system calls have been made using int $0x80. A - second method was introduced which, if possible, will use the - sysenter/syscall instructions. To signal the presence and where to - find the code the kernel passes an AT_SYSINFO value in the - auxiliary vector to the application. - sysenter/syscall is not useful on i386 through i586, but the dynamic - linker and dl code in libc.a has to be able to load i686 compiled - libraries. */ -#define NEED_DL_SYSINFO 1 -#undef USE_DL_SYSINFO - -#if defined NEED_DL_SYSINFO && !defined __ASSEMBLER__ -extern void _dl_sysinfo_int80 (void) attribute_hidden; -# define DL_SYSINFO_DEFAULT (uintptr_t) _dl_sysinfo_int80 -# define DL_SYSINFO_IMPLEMENTATION \ - asm (".text\n\t" \ - ".type _dl_sysinfo_int80,@function\n\t" \ - ".hidden _dl_sysinfo_int80\n" \ - CFI_STARTPROC "\n" \ - "_dl_sysinfo_int80:\n\t" \ - "int $0x80;\n\t" \ - "ret;\n\t" \ - CFI_ENDPROC "\n" \ - ".size _dl_sysinfo_int80,.-_dl_sysinfo_int80\n\t" \ - ".previous"); -#endif - -#endif /* dl-sysdep.h */ diff --git a/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h deleted file mode 100644 index c8be0fdd39..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h +++ /dev/null @@ -1,188 +0,0 @@ -/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#include <tls.h> -#include <pt-machine.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (name) \ - SINGLE_THREAD_P; \ - jne L(pseudo_cancel); \ - DO_CALL (syscall_name, args); \ - cmpl $-4095, %eax; \ - jae SYSCALL_ERROR_LABEL; \ - ret; \ - L(pseudo_cancel): \ - CENABLE \ - SAVE_OLDTYPE_##args \ - PUSHCARGS_##args \ - DOCARGS_##args \ - movl $SYS_ify (syscall_name), %eax; \ - int $0x80 \ - POPCARGS_##args; \ - POPSTATE_##args \ - cmpl $-4095, %eax; \ - jae SYSCALL_ERROR_LABEL; \ - L(pseudo_end): - -# define SAVE_OLDTYPE_0 movl %eax, %ecx; -# define SAVE_OLDTYPE_1 SAVE_OLDTYPE_0 -# define SAVE_OLDTYPE_2 pushl %eax; cfi_adjust_cfa_offset (4); -# define SAVE_OLDTYPE_3 SAVE_OLDTYPE_2 -# define SAVE_OLDTYPE_4 SAVE_OLDTYPE_2 -# define SAVE_OLDTYPE_5 SAVE_OLDTYPE_2 - -# define PUSHCARGS_0 /* No arguments to push. */ -# define DOCARGS_0 /* No arguments to frob. */ -# define POPCARGS_0 /* No arguments to pop. */ -# define _PUSHCARGS_0 /* No arguments to push. */ -# define _POPCARGS_0 /* No arguments to pop. */ - -# define PUSHCARGS_1 movl %ebx, %edx; cfi_register (ebx, edx); PUSHCARGS_0 -# define DOCARGS_1 _DOARGS_1 (4) -# define POPCARGS_1 POPCARGS_0; movl %edx, %ebx; cfi_restore (ebx); -# define _PUSHCARGS_1 pushl %ebx; cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (ebx, 0); _PUSHCARGS_0 -# define _POPCARGS_1 _POPCARGS_0; popl %ebx; \ - cfi_adjust_cfa_offset (-4); cfi_restore (ebx); - -# define PUSHCARGS_2 PUSHCARGS_1 -# define DOCARGS_2 _DOARGS_2 (12) -# define POPCARGS_2 POPCARGS_1 -# define _PUSHCARGS_2 _PUSHCARGS_1 -# define _POPCARGS_2 _POPCARGS_1 - -# define PUSHCARGS_3 _PUSHCARGS_2 -# define DOCARGS_3 _DOARGS_3 (20) -# define POPCARGS_3 _POPCARGS_3 -# define _PUSHCARGS_3 _PUSHCARGS_2 -# define _POPCARGS_3 _POPCARGS_2 - -# define PUSHCARGS_4 _PUSHCARGS_4 -# define DOCARGS_4 _DOARGS_4 (28) -# define POPCARGS_4 _POPCARGS_4 -# define _PUSHCARGS_4 pushl %esi; cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (esi, 0); _PUSHCARGS_3 -# define _POPCARGS_4 _POPCARGS_3; popl %esi; \ - cfi_adjust_cfa_offset (-4); cfi_restore (esi); - -# define PUSHCARGS_5 _PUSHCARGS_5 -# define DOCARGS_5 _DOARGS_5 (36) -# define POPCARGS_5 _POPCARGS_5 -# define _PUSHCARGS_5 pushl %edi; cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (edi, 0); _PUSHCARGS_4 -# define _POPCARGS_5 _POPCARGS_4; popl %edi; \ - cfi_adjust_cfa_offset (-4); cfi_restore (edi); - -# ifdef IS_IN_libpthread -# define CENABLE call __pthread_enable_asynccancel; -# define CDISABLE call __pthread_disable_asynccancel -# elif defined IS_IN_librt -# ifdef PIC -# define CENABLE pushl %ebx; \ - call __i686.get_pc_thunk.bx; \ - addl $_GLOBAL_OFFSET_TABLE_, %ebx; \ - call __librt_enable_asynccancel@PLT; \ - popl %ebx; -# define CDISABLE pushl %ebx; \ - call __i686.get_pc_thunk.bx; \ - addl $_GLOBAL_OFFSET_TABLE_, %ebx; \ - call __librt_disable_asynccancel@PLT; \ - popl %ebx; -# else -# define CENABLE call __librt_enable_asynccancel; -# define CDISABLE call __librt_disable_asynccancel -# endif -# else -# define CENABLE call __libc_enable_asynccancel; -# define CDISABLE call __libc_disable_asynccancel -# endif -# define POPSTATE_0 \ - pushl %eax; cfi_adjust_cfa_offset (4); movl %ecx, %eax; \ - CDISABLE; popl %eax; cfi_adjust_cfa_offset (-4); -# define POPSTATE_1 POPSTATE_0 -# define POPSTATE_2 xchgl (%esp), %eax; CDISABLE; popl %eax; \ - cfi_adjust_cfa_offset (-4); -# define POPSTATE_3 POPSTATE_2 -# define POPSTATE_4 POPSTATE_3 -# define POPSTATE_5 POPSTATE_4 - -#if !defined NOT_IN_libc -# define __local_multiple_threads __libc_multiple_threads -#elif defined IS_IN_libpthread -# define __local_multiple_threads __pthread_multiple_threads -#else -# define __local_multiple_threads __librt_multiple_threads -#endif - -# ifndef __ASSEMBLER__ -# if defined FLOATING_STACKS && USE___THREAD && defined PIC -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - p_header.data.multiple_threads) == 0, 1) -# else -extern int __local_multiple_threads -# if !defined NOT_IN_libc || defined IS_IN_libpthread - attribute_hidden; -# else - ; -# endif -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# endif -# else -# if !defined PIC -# define SINGLE_THREAD_P cmpl $0, __local_multiple_threads -# elif defined FLOATING_STACKS && USE___THREAD -# define SINGLE_THREAD_P cmpl $0, %gs:MULTIPLE_THREADS_OFFSET -# else -# if !defined NOT_IN_libc || defined IS_IN_libpthread -# define __SINGLE_THREAD_CMP cmpl $0, __local_multiple_threads@GOTOFF(%ecx) -# else -# define __SINGLE_THREAD_CMP \ - movl __local_multiple_threads@GOT(%ecx), %ecx;\ - cmpl $0, (%ecx) -# endif -# if !defined HAVE_HIDDEN || !USE___THREAD -# define SINGLE_THREAD_P \ - SETUP_PIC_REG (cx); \ - addl $_GLOBAL_OFFSET_TABLE_, %ecx; \ - __SINGLE_THREAD_CMP -# else -# define SINGLE_THREAD_P \ - call __i686.get_pc_thunk.cx; \ - addl $_GLOBAL_OFFSET_TABLE_, %ecx; \ - __SINGLE_THREAD_CMP -# endif -# endif -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S deleted file mode 100644 index c7a120d239..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S +++ /dev/null @@ -1,95 +0,0 @@ -/* Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Andreas Schwab <schwab@gnu.org>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <kernel-features.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - -#ifdef __NR_vfork - -# ifdef SHARED -# if !defined HAVE_HIDDEN || !USE___THREAD - SETUP_PIC_REG (cx) -# else - call __i686.get_pc_thunk.cx -# endif - addl $_GLOBAL_OFFSET_TABLE_, %ecx - cmpl $0, __libc_pthread_functions@GOTOFF(%ecx) -# else - .weak pthread_create - movl $pthread_create, %eax - testl %eax, %eax -# endif - jne HIDDEN_JUMPTARGET (__fork) - - /* Pop the return PC value into ECX. */ - popl %ecx - - /* Stuff the syscall number in EAX and enter into the kernel. */ - movl $SYS_ify (vfork), %eax - int $0x80 - - /* Jump to the return PC. Don't jump directly since this - disturbs the branch target cache. Instead push the return - address back on the stack. */ - pushl %ecx - - cmpl $-4095, %eax - /* Branch forward if it failed. */ -# ifdef __ASSUME_VFORK_SYSCALL - jae SYSCALL_ERROR_LABEL -.Lpseudo_end: -# else - jae .Lerror -# endif - - ret - -# ifndef __ASSUME_VFORK_SYSCALL -.Lerror: - /* Check if vfork syscall is known at all. */ - cmpl $-ENOSYS, %eax - jne SYSCALL_ERROR_LABEL -# endif -#endif - -#ifndef __ASSUME_VFORK_SYSCALL - /* If we don't have vfork, fork is close enough. */ - - movl $SYS_ify (fork), %eax - int $0x80 - cmpl $-4095, %eax - jae SYSCALL_ERROR_LABEL -.Lpseudo_end: - ret -#elif !defined __NR_vfork -# error "__NR_vfork not available and __ASSUME_VFORK_SYSCALL defined" -#endif -PSEUDO_END (__vfork) -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/ia64/Makefile b/linuxthreads/sysdeps/unix/sysv/linux/ia64/Makefile deleted file mode 100644 index e03aee99fc..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/ia64/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -ifeq ($(subdir),linuxthreads) -libpthread-routines += ptw-sysdep ptw-sigblock ptw-sigprocmask -endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/ia64/Versions b/linuxthreads/sysdeps/unix/sysv/linux/ia64/Versions deleted file mode 100644 index d102772482..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/ia64/Versions +++ /dev/null @@ -1,6 +0,0 @@ -libpthread { - GLIBC_2.3.3 { - # Changed PTHREAD_STACK_MIN. - pthread_attr_setstack; pthread_attr_setstacksize; - } -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h b/linuxthreads/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h deleted file mode 100644 index 629b1f89c1..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h +++ /dev/null @@ -1,92 +0,0 @@ -/* Minimum guaranteed maximum values for system limits. Linux/Alpha version. - Copyright (C) 1993-1998,2000,2002,2003,2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* The kernel header pollutes the namespace with the NR_OPEN symbol - and defines LINK_MAX although filesystems have different maxima. A - similar thing is true for OPEN_MAX: the limit can be changed at - runtime and therefore the macro must not be defined. Remove this - after including the header if necessary. */ -#ifndef NR_OPEN -# define __undef_NR_OPEN -#endif -#ifndef LINK_MAX -# define __undef_LINK_MAX -#endif -#ifndef OPEN_MAX -# define __undef_OPEN_MAX -#endif - -/* The kernel sources contain a file with all the needed information. */ -#include <linux/limits.h> - -/* Have to remove NR_OPEN? */ -#ifdef __undef_NR_OPEN -# undef NR_OPEN -# undef __undef_NR_OPEN -#endif -/* Have to remove LINK_MAX? */ -#ifdef __undef_LINK_MAX -# undef LINK_MAX -# undef __undef_LINK_MAX -#endif -/* Have to remove OPEN_MAX? */ -#ifdef __undef_OPEN_MAX -# undef OPEN_MAX -# undef __undef_OPEN_MAX -#endif - -/* The number of data keys per process. */ -#define _POSIX_THREAD_KEYS_MAX 128 -/* This is the value this implementation supports. */ -#define PTHREAD_KEYS_MAX 1024 - -/* Controlling the iterations of destructors for thread-specific data. */ -#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 -/* Number of iterations this implementation does. */ -#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS - -/* The number of threads per process. */ -#define _POSIX_THREAD_THREADS_MAX 64 -/* This is the value this implementation supports. */ -#define PTHREAD_THREADS_MAX 16384 - -/* Maximum amount by which a process can descrease its asynchronous I/O - priority level. */ -#define AIO_PRIO_DELTA_MAX 20 - -/* Minimum size for a thread. We are free to choose a reasonable value. */ -#define PTHREAD_STACK_MIN 196608 - -/* Maximum number of POSIX timers available. */ -#define TIMER_MAX 256 - -/* Maximum number of timer expiration overruns. */ -#define DELAYTIMER_MAX 2147483647 - -/* Maximum tty name length. */ -#define TTY_NAME_MAX 32 - -/* Maximum login name length. This is arbitrary. */ -#define LOGIN_NAME_MAX 256 - -/* Maximum host name length. */ -#define HOST_NAME_MAX 64 - -/* Maximum message queue priority level. */ -#define MQ_PRIO_MAX 32768 diff --git a/linuxthreads/sysdeps/unix/sysv/linux/ia64/dl-sysdep.h b/linuxthreads/sysdeps/unix/sysv/linux/ia64/dl-sysdep.h deleted file mode 100644 index 27d5fdfbf5..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/ia64/dl-sysdep.h +++ /dev/null @@ -1,49 +0,0 @@ -/* System-specific settings for dynamic linker code. IA-64 version. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _DL_SYSDEP_H -#define _DL_SYSDEP_H 1 - -#define NEED_DL_SYSINFO 1 -#undef USE_DL_SYSINFO - -#if defined NEED_DL_SYSINFO && !defined __ASSEMBLER__ -/* Don't declare this as a function---we want it's entry-point, not - it's function descriptor... */ -extern int _dl_sysinfo_break attribute_hidden; -# define DL_SYSINFO_DEFAULT ((uintptr_t) &_dl_sysinfo_break) -# define DL_SYSINFO_IMPLEMENTATION \ - asm (".text\n\t" \ - ".hidden _dl_sysinfo_break\n\t" \ - ".proc _dl_sysinfo_break\n\t" \ - "_dl_sysinfo_break:\n\t" \ - ".prologue\n\t" \ - ".altrp b6\n\t" \ - ".body\n\t" \ - "break 0x100000;\n\t" \ - "br.ret.sptk.many b6;\n\t" \ - ".endp _dl_sysinfo_break" \ - ".previous"); -#endif - -/* _dl_argv cannot be attribute_relro, because _dl_start_user - might write into it after _dl_start returns. */ -#define DL_ARGV_NOT_RELRO 1 - -#endif /* dl-sysdep.h */ diff --git a/linuxthreads/sysdeps/unix/sysv/linux/ia64/fork.h b/linuxthreads/sysdeps/unix/sysv/linux/ia64/fork.h deleted file mode 100644 index 30a0cc1918..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/ia64/fork.h +++ /dev/null @@ -1,25 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <signal.h> -#include <sysdep.h> - -#define ARCH_FORK() INLINE_SYSCALL (clone, 2, SIGCHLD, 0) - -#include_next <fork.h> diff --git a/linuxthreads/sysdeps/unix/sysv/linux/ia64/pt-initfini.c b/linuxthreads/sysdeps/unix/sysv/linux/ia64/pt-initfini.c deleted file mode 100644 index af8a63c163..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/ia64/pt-initfini.c +++ /dev/null @@ -1,142 +0,0 @@ -/* Special .init and .fini section support for ia64. LinuxThreads version. - Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it - and/or modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - The GNU C Library is distributed in the hope that it will be - useful, but WITHOUT ANY WARRANTY; without even the implied warranty - of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* This file is compiled into assembly code which is then munged by a sed - script into two files: crti.s and crtn.s. - - * crti.s puts a function prologue at the beginning of the - .init and .fini sections and defines global symbols for - those addresses, so they can be called as functions. - - * crtn.s puts the corresponding function epilogues - in the .init and .fini sections. */ - -#include <stddef.h> - -#ifdef HAVE_INITFINI_ARRAY - -# define INIT_NEW_WAY \ - ".xdata8 \".init_array\", @fptr(__pthread_initialize_minimal)\n" -# define INIT_OLD_WAY "" -#else -# define INIT_NEW_WAY "" -# define INIT_OLD_WAY \ - "\n\ - st8 [r12] = gp, -16\n\ - br.call.sptk.many b0 = __pthread_initialize_minimal# ;;\n\ - ;;\n\ - adds r12 = 16, r12\n\ - ;;\n\ - ld8 gp = [r12]\n\ - ;;\n" -#endif - -__asm__ ("\n\ -\n\ -#include \"defs.h\"\n\ -\n\ -/*@HEADER_ENDS*/\n\ -\n\ -/*@_init_PROLOG_BEGINS*/\n" - INIT_NEW_WAY - ".section .init\n\ - .align 16\n\ - .global _init#\n\ - .proc _init#\n\ -_init:\n\ - .prologue\n\ - .save ar.pfs, r34\n\ - alloc r34 = ar.pfs, 0, 3, 0, 0\n\ - .vframe r32\n\ - mov r32 = r12\n\ - .save rp, r33\n\ - mov r33 = b0\n\ - .body\n\ - adds r12 = -16, r12\n\ - ;;\n" - INIT_OLD_WAY - ".endp _init#\n\ -\n\ -/*@_init_PROLOG_ENDS*/\n\ -\n\ -/*@_init_EPILOG_BEGINS*/\n\ - .section .init\n\ - .proc _init#\n\ -_init:\n\ - .prologue\n\ - .save ar.pfs, r34\n\ - .vframe r32\n\ - .save rp, r33\n\ - .body\n\ - mov r12 = r32\n\ - mov ar.pfs = r34\n\ - mov b0 = r33\n\ - br.ret.sptk.many b0\n\ - .endp _init#\n\ -/*@_init_EPILOG_ENDS*/\n\ -\n\ -/*@_fini_PROLOG_BEGINS*/\n\ - .section .fini\n\ - .align 16\n\ - .global _fini#\n\ - .proc _fini#\n\ -_fini:\n\ - .prologue\n\ - .save ar.pfs, r34\n\ - alloc r34 = ar.pfs, 0, 3, 0, 0\n\ - .vframe r32\n\ - mov r32 = r12\n\ - .save rp, r33\n\ - mov r33 = b0\n\ - .body\n\ - adds r12 = -16, r12\n\ - ;;\n\ - .endp _fini#\n\ -\n\ -/*@_fini_PROLOG_ENDS*/\n\ -\n\ -/*@_fini_EPILOG_BEGINS*/\n\ - .section .fini\n\ - .proc _fini#\n\ -_fini:\n\ - .prologue\n\ - .save ar.pfs, r34\n\ - .vframe r32\n\ - .save rp, r33\n\ - .body\n\ - mov r12 = r32\n\ - mov ar.pfs = r34\n\ - mov b0 = r33\n\ - br.ret.sptk.many b0\n\ - .endp _fini#\n\ -\n\ -/*@_fini_EPILOG_ENDS*/\n\ -\n\ -/*@TRAILER_BEGINS*/\n\ - .weak __gmon_start__#\n\ -"); diff --git a/linuxthreads/sysdeps/unix/sysv/linux/ia64/pt-sigsuspend.c b/linuxthreads/sysdeps/unix/sysv/linux/ia64/pt-sigsuspend.c deleted file mode 100644 index 0b96e3d5bd..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/ia64/pt-sigsuspend.c +++ /dev/null @@ -1,33 +0,0 @@ -/* Internal sigsuspend system call for LinuxThreads. IA64 version. - Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <signal.h> -#include <unistd.h> - -#include <sysdep.h> -#include <sys/syscall.h> -#include <linuxthreads/internals.h> - -void -__pthread_sigsuspend (const sigset_t *set) -{ - INTERNAL_SYSCALL_DECL (err); - INTERNAL_SYSCALL (rt_sigsuspend, err, 2, set, _NSIG / 8); -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h deleted file mode 100644 index dd9637d2b5..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h +++ /dev/null @@ -1,144 +0,0 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# ifdef IS_IN_librt -# define PSEUDO_NLOCAL 6 -# define PSEUDO_SAVE_GP mov loc5 = gp -# define PSEUDO_RESTORE_GP mov gp = loc5 -# define PSEUDO_SAVE_GP_1 -# define PSEUDO_RESTORE_GP_1 mov gp = loc5 -# else -# define PSEUDO_NLOCAL 5 -# define PSEUDO_SAVE_GP -# define PSEUDO_RESTORE_GP -# define PSEUDO_SAVE_GP_1 mov loc4 = gp;; -# define PSEUDO_RESTORE_GP_1 mov gp = loc4 -# endif - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ -.text; \ -ENTRY (name) \ - adds r14 = MULTIPLE_THREADS_OFFSET, r13;; \ - ld4 r14 = [r14]; \ - mov r15 = SYS_ify(syscall_name);; \ - cmp4.ne p6, p7 = 0, r14; \ -(p6) br.cond.spnt .Lpseudo_cancel;; \ - break __BREAK_SYSCALL;; \ - cmp.eq p6,p0=-1,r10; \ -(p6) br.cond.spnt.few __syscall_error; \ - ret;; \ - .endp name; \ - .proc __GC_##name; \ - .globl __GC_##name; \ - .hidden __GC_##name; \ -__GC_##name: \ -.Lpseudo_cancel: \ - .prologue; \ - .regstk args, PSEUDO_NLOCAL, args, 0; \ - .save ar.pfs, loc0; \ - alloc loc0 = ar.pfs, args, PSEUDO_NLOCAL, args, 0; \ - .save rp, loc1; \ - mov loc1 = rp; \ - PSEUDO_SAVE_GP;; \ - .body; \ - CENABLE;; \ - PSEUDO_RESTORE_GP; \ - mov loc2 = r8; \ - COPY_ARGS_##args \ - mov r15 = SYS_ify(syscall_name); \ - break __BREAK_SYSCALL;; \ - mov loc3 = r8; \ - mov loc4 = r10; \ - mov out0 = loc2; \ - CDISABLE;; \ - PSEUDO_RESTORE_GP; \ - cmp.eq p6,p0=-1,loc4; \ -(p6) br.cond.spnt.few __syscall_error_##args; \ - mov r8 = loc3; \ - mov rp = loc1; \ - mov ar.pfs = loc0; \ -.Lpseudo_end: \ - ret; \ - .endp __GC_##name; \ -.section .gnu.linkonce.t.__syscall_error_##args, "ax"; \ - .align 32; \ - .proc __syscall_error_##args; \ - .global __syscall_error_##args; \ - .hidden __syscall_error_##args; \ - .size __syscall_error_##args, 64; \ -__syscall_error_##args: \ - .prologue; \ - .regstk args, PSEUDO_NLOCAL, args, 0; \ - .save ar.pfs, loc0; \ - .save rp, loc1; \ - .body; \ - PSEUDO_SAVE_GP_1; \ - br.call.sptk.many b0 = __errno_location;; \ - st4 [r8] = loc3; \ - PSEUDO_RESTORE_GP_1; \ - mov rp = loc1; \ - mov r8 = -1; \ - mov ar.pfs = loc0 - -#undef PSEUDO_END -#define PSEUDO_END(name) .endp - -# ifdef IS_IN_libpthread -# define CENABLE br.call.sptk.many b0 = __pthread_enable_asynccancel -# define CDISABLE br.call.sptk.many b0 = __pthread_disable_asynccancel -# elif !defined NOT_IN_libc -# define CENABLE br.call.sptk.many b0 = __libc_enable_asynccancel -# define CDISABLE br.call.sptk.many b0 = __libc_disable_asynccancel -# else -# define CENABLE br.call.sptk.many b0 = __librt_enable_asynccancel -# define CDISABLE br.call.sptk.many b0 = __librt_disable_asynccancel -# endif - -#define COPY_ARGS_0 /* Nothing */ -#define COPY_ARGS_1 COPY_ARGS_0 mov out0 = in0; -#define COPY_ARGS_2 COPY_ARGS_1 mov out1 = in1; -#define COPY_ARGS_3 COPY_ARGS_2 mov out2 = in2; -#define COPY_ARGS_4 COPY_ARGS_3 mov out3 = in3; -#define COPY_ARGS_5 COPY_ARGS_4 mov out4 = in4; -#define COPY_ARGS_6 COPY_ARGS_5 mov out5 = in5; -#define COPY_ARGS_7 COPY_ARGS_6 mov out6 = in6; - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, p_multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - adds r14 = MULTIPLE_THREADS_OFFSET, r13 ;; ld4 r14 = [r14] ;; cmp4.ne p6, p7 = 0, r14 -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/ia64/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/ia64/vfork.S deleted file mode 100644 index 54acedad4c..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/ia64/vfork.S +++ /dev/null @@ -1,54 +0,0 @@ -/* Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - - -#include <sysdep-cancel.h> -#define _SIGNAL_H -#include <bits/signum.h> - -/* The following are defined in linux/sched.h, which unfortunately */ -/* is not safe for inclusion in an assembly file. */ -#define CLONE_VM 0x00000100 /* set if VM shared between processes */ -#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */ - -/* pid_t vfork(void); */ -/* Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0) */ - -ENTRY(__vfork) -#ifdef SHARED - addl r14 = @gprel(__libc_pthread_functions#), gp;; -#else - .weak pthread_create - addl r14 = @ltoff(@fptr(pthread_create#)), gp;; -#endif - ld8 r14 = [r14];; - cmp.ne p6, p7 = 0, r14 -(p6) br.cond.spnt.few HIDDEN_JUMPTARGET (__fork);; - alloc r2=ar.pfs,0,0,2,0 - mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD - mov out1=0 /* Standard sp value. */ - ;; - DO_CALL (SYS_ify (clone)) - cmp.eq p6,p0=-1,r10 - ;; -(p6) br.cond.spnt.few __syscall_error - ret -PSEUDO_END(__vfork) -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/jmp-unwind.c b/linuxthreads/sysdeps/unix/sysv/linux/jmp-unwind.c deleted file mode 100644 index 4b90315707..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/jmp-unwind.c +++ /dev/null @@ -1,34 +0,0 @@ -/* _longjmp_unwind -- Clean up stack frames unwound by longjmp. - Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <setjmp.h> -#include <stddef.h> -#include <bits/libc-lock.h> - -#ifndef SHARED -weak_extern (__pthread_cleanup_upto); -#endif - -void -_longjmp_unwind (jmp_buf env, int val) -{ - __libc_maybe_call2 (pthread_cleanup_upto, - (env->__jmpbuf, __builtin_frame_address (0)), - (void) 0); -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h deleted file mode 100644 index bb798e40d6..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h +++ /dev/null @@ -1,129 +0,0 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Andreas Schwab <schwab@suse.de>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (name) \ - SINGLE_THREAD_P; \ - jne .Lpseudo_cancel; \ - DO_CALL (syscall_name, args); \ - cmp.l &-4095, %d0; \ - jcc SYSCALL_ERROR_LABEL; \ - rts; \ - .Lpseudo_cancel: \ - CENABLE; \ - DOCARGS_##args \ - move.l %d0, -(%sp); \ - move.l &SYS_ify (syscall_name), %d0; \ - trap &0; \ - move.l %d0, %d2; \ - CDISABLE; \ - addq.l &4, %sp; \ - move.l %d2, %d0; \ - UNDOCARGS_##args \ - cmp.l &-4095, %d0; \ - jcc SYSCALL_ERROR_LABEL - -# define DOCARGS_0 move.l %d2, -(%sp); -# define _DOCARGS_0(n) -# define UNDOCARGS_0 move.l (%sp)+, %d2; - -# define DOCARGS_1 _DOCARGS_1 (4); DOCARGS_0 -# define _DOCARGS_1(n) move.l n(%sp), %d1; _DOARGS_0 (n) -# define UNDOCARGS_1 UNDOCARGS_0 - -# define DOCARGS_2 _DOCARGS_2 (8) -# define _DOCARGS_2(n) move.l %d2, -(%sp); move.l n+4(%sp), %d2; \ - _DOCARGS_1 (n) -# define UNDOCARGS_2 UNDOCARGS_1 - -# define DOCARGS_3 _DOCARGS_3 (12) -# define _DOCARGS_3(n) move.l %d3, -(%sp); move.l n+4(%sp), %d3; \ - _DOCARGS_2 (n) -# define UNDOCARGS_3 UNDOCARGS_2; move.l (%sp)+, %d3; - -# define DOCARGS_4 _DOCARGS_4 (16) -# define _DOCARGS_4(n) move.l %d4, -(%sp); move.l n+4(%sp), %d4; \ - _DOCARGS_3 (n) -# define UNDOCARGS_4 UNDOCARGS_3; move.l (%sp)+, %d4; - -# define DOCARGS_5 _DOCARGS_5 (20) -# define _DOCARGS_5(n) move.l %d5, -(%sp); move.l n+4(%sp), %d5; \ - _DOCARGS_4 (n) -# define UNDOCARGS_5 UNDOCARGS_4; move.l (%sp)+, %d5; - -# ifdef IS_IN_libpthread -# ifdef PIC -# define CENABLE jbsr __pthread_enable_asynccancel@PLTPC -# define CDISABLE jbsr __pthread_disable_asynccancel@PLTPC -# else -# define CENABLE jbsr __pthread_enable_asynccancel -# define CDISABLE jbsr __pthread_disable_asynccancel -# endif -# elif !defined NOT_IN_libc -# ifdef PIC -# define CENABLE jbsr __libc_enable_asynccancel@PLTPC -# define CDISABLE jbsr __libc_disable_asynccancel@PLTPC -# else -# define CENABLE jbsr __libc_enable_asynccancel -# define CDISABLE jbsr __libc_disable_asynccancel -# endif -# else -# ifdef PIC -# define CENABLE jbsr __librt_enable_asynccancel@PLTPC -# define CDISABLE jbsr __librt_disable_asynccancel@PLTPC -# else -# define CENABLE jbsr __librt_enable_asynccancel -# define CDISABLE jbsr __librt_disable_asynccancel -# endif -# endif - -# if !defined NOT_IN_libc -# define __local_multiple_threads __libc_multiple_threads -# elif defined IS_IN_libpthread -# define __local_multiple_threads __pthread_multiple_threads -# else -# define __local_multiple_threads __librt_multiple_threads -# endif - -# ifndef __ASSEMBLER__ -extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# else -# if !defined PIC -# define SINGLE_THREAD_P tst.l __local_multiple_threads -# else -# define SINGLE_THREAD_P tst.l (__local_multiple_threads, %pc) -# endif -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/m68k/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/m68k/vfork.S deleted file mode 100644 index 49b8a3c0ac..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/m68k/vfork.S +++ /dev/null @@ -1,84 +0,0 @@ -/* Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Andreas Schwab <schwab@gnu.org>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <kernel-features.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - -#ifdef SHARED - tstl (__libc_pthread_functions@GOTPC, %pc) -#else - .weak pthread_create - movel #pthread_create, %d0 -#endif - jbne HIDDEN_JUMPTARGET (__fork) - -#ifdef __NR_vfork - - /* Pop the return PC value into A0. */ - movel %sp@+, %a0 - - /* Stuff the syscall number in D0 and trap into the kernel. */ - movel #SYS_ify (vfork), %d0 - trap #0 - tstl %d0 - jmi .Lerror /* Branch forward if it failed. */ - - /* Jump to the return PC. */ - jmp %a0@ - -.Lerror: - /* Push back the return PC. */ - movel %a0,%sp@- - -# ifdef __ASSUME_VFORK_SYSCALL -# ifndef PIC - jbra SYSCALL_ERROR_LABEL -# endif -# else - /* Check if vfork syscall is known at all. */ - movel #-ENOSYS,%d1 - cmpl %d0,%d1 - jne SYSCALL_ERROR_LABEL - -# endif -#endif - -#ifndef __ASSUME_VFORK_SYSCALL - /* If we don't have vfork, fork is close enough. */ - - movel #SYS_ify (fork), %d0 - trap #0 - tstl %d0 - jmi SYSCALL_ERROR_LABEL - rts -#endif - -PSEUDO_END (__vfork) -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/mips/Makefile b/linuxthreads/sysdeps/unix/sysv/linux/mips/Makefile deleted file mode 100644 index 56eeecc789..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/mips/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -# pull in __syscall_error routine -libpthread-routines += sysdep - diff --git a/linuxthreads/sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h deleted file mode 100644 index fc51774252..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h +++ /dev/null @@ -1,144 +0,0 @@ -/* system call stubs with cancellation handling. Linux/MIPS version. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Chris Demetriou of Broadcom Corporation, - based on work by Guido Guenther <agx@sigxcpu.org>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif -#include <sys/asm.h> - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -#ifdef __PIC__ -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .align 2; \ - 99: \ - PTR_LA t9,__syscall_error; \ - /* manual cpreturn. */ \ - REG_L gp, STKOFF_GP(sp); \ - RESTORESTK ; \ - jr t9; \ - ENTRY (name) \ - SAVESTK ; \ - .cpsetup t9, STKOFF_GP, name ; \ - .set reorder; \ - SINGLE_THREAD_P(t0); \ - bne zero, t0, L(pseudo_cancel); \ - .set noreorder; \ - li v0, SYS_ify(syscall_name); \ - syscall; \ - .set reorder; \ - bne a3, zero, SYSCALL_ERROR_LABEL; \ - /* manual cpreturn. */ \ - REG_L gp, STKOFF_GP(sp); \ - RESTORESTK ; \ - ret; \ - L(pseudo_cancel): \ - REG_S ra, STKOFF_RA(sp); \ - PUSHARGS_##args; /* save syscall args */ \ - CENABLE; \ - REG_S v0, STKOFF_SVMSK(sp); /* save mask */ \ - POPARGS_##args; /* restore syscall args */ \ - .set noreorder; \ - li v0, SYS_ify (syscall_name); \ - syscall; \ - .set reorder; \ - REG_S v0, STKOFF_SC_V0(sp); /* save syscall result */ \ - REG_S a3, STKOFF_SC_ERR(sp); /* save syscall error flag */ \ - REG_L a0, STKOFF_SVMSK(sp); /* pass mask as arg1 */ \ - CDISABLE; \ - REG_L a3, STKOFF_SC_ERR(sp); /* restore syscall error flag */ \ - REG_L ra, STKOFF_RA(sp); /* restore return address */ \ - REG_L v0, STKOFF_SC_V0(sp); /* restore syscall result */ \ - bne a3, zero, SYSCALL_ERROR_LABEL; \ - /* manual cpreturn. */ \ - REG_L gp, STKOFF_GP(sp); \ - RESTORESTK ; \ - L(pseudo_end): -#endif - -# define PUSHARGS_0 /* nothing to do */ -# define PUSHARGS_1 PUSHARGS_0 REG_S a0, STKOFF_A0(sp); -# define PUSHARGS_2 PUSHARGS_1 REG_S a1, STKOFF_A1(sp); -# define PUSHARGS_3 PUSHARGS_2 REG_S a2, STKOFF_A2(sp); -# define PUSHARGS_4 PUSHARGS_3 REG_S a3, STKOFF_A3(sp); -# define PUSHARGS_5 PUSHARGS_4 REG_S a4, STKOFF_A4(sp); -# define PUSHARGS_6 PUSHARGS_5 REG_S a5, STKOFF_A5(sp); - -# define POPARGS_0 /* nothing to do */ -# define POPARGS_1 POPARGS_0 REG_L a0, STKOFF_A0(sp); -# define POPARGS_2 POPARGS_1 REG_L a1, STKOFF_A1(sp); -# define POPARGS_3 POPARGS_2 REG_L a2, STKOFF_A2(sp); -# define POPARGS_4 POPARGS_3 REG_L a3, STKOFF_A3(sp); -# define POPARGS_5 POPARGS_4 REG_L a4, STKOFF_A4(sp); -# define POPARGS_6 POPARGS_5 REG_L a5, STKOFF_A5(sp); - -/* Save an even number of slots. Should be 0 if an even number of slots - are used below, or SZREG if an odd number are used. */ -# define STK_PAD SZREG - -/* Place values that we are more likely to use later in this sequence, i.e. - closer to the SP at function entry. If you do that, the are more - likely to already be in your d-cache. */ -# define STKOFF_A5 (STK_PAD) -# define STKOFF_A4 (STKOFF_A5 + SZREG) -# define STKOFF_A3 (STKOFF_A4 + SZREG) -# define STKOFF_A2 (STKOFF_A3 + SZREG) /* MT and more args. */ -# define STKOFF_A1 (STKOFF_A2 + SZREG) /* MT and 2 args. */ -# define STKOFF_A0 (STKOFF_A1 + SZREG) /* MT and 1 arg. */ -# define STKOFF_RA (STKOFF_A0 + SZREG) /* Used if MT. */ -# define STKOFF_SC_V0 (STKOFF_RA + SZREG) /* Used if MT. */ -# define STKOFF_SC_ERR (STKOFF_SC_V0 + SZREG) /* Used if MT. */ -# define STKOFF_SVMSK (STKOFF_SC_ERR + SZREG) /* Used if MT. */ -# define STKOFF_GP (STKOFF_SVMSK + SZREG) /* Always used. */ - -# define STKSPACE (STKOFF_GP + SZREG) -# define SAVESTK PTR_SUBU sp, STKSPACE -# define RESTORESTK PTR_ADDU sp, STKSPACE - -# ifdef IS_IN_libpthread -# define CENABLE PTR_LA t9, __pthread_enable_asynccancel; jalr t9; -# define CDISABLE PTR_LA t9, __pthread_disable_asynccancel; jalr t9; -# define __local_multiple_threads __pthread_multiple_threads -# elif defined IS_IN_librt -# define CENABLE PTR_LA t9, __librt_enable_asynccancel; jalr t9; -# define CDISABLE PTR_LA t9, __librt_disable_asynccancel; jalr t9; -# define __local_multiple_threads __librt_multiple_threads -# else -# define CENABLE PTR_LA t9, __libc_enable_asynccancel; jalr t9; -# define CDISABLE PTR_LA t9, __libc_disable_asynccancel; jalr t9; -# define __local_multiple_threads __libc_multiple_threads -# endif - -# ifndef __ASSEMBLER__ -extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P(reg) lw reg, __local_multiple_threads -#endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/mips/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/mips/sysdep-cancel.h deleted file mode 100644 index 1fff782397..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/mips/sysdep-cancel.h +++ /dev/null @@ -1,143 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Guido Guenther <agx@sigxcpu.org>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -#ifdef __PIC__ -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .align 2; \ - 99: la t9,__syscall_error; \ - jr t9; \ - ENTRY (name) \ - .set noreorder; \ - .cpload t9; \ - .set reorder; \ - SINGLE_THREAD_P(t0); \ - bne zero, t0, L(pseudo_cancel); \ - .set noreorder; \ - li v0, SYS_ify(syscall_name); \ - syscall; \ - .set reorder; \ - bne a3, zero, SYSCALL_ERROR_LABEL; \ - ret; \ - L(pseudo_cancel): \ - SAVESTK_##args; \ - sw ra, 28(sp); \ - sw gp, 32(sp); \ - PUSHARGS_##args; /* save syscall args */ \ - CENABLE; \ - lw gp, 32(sp); \ - sw v0, 44(sp); /* save mask */ \ - POPARGS_##args; /* restore syscall args */ \ - .set noreorder; \ - li v0, SYS_ify (syscall_name); \ - syscall; \ - .set reorder; \ - sw v0, 36(sp); /* save syscall result */ \ - sw a3, 40(sp); /* save syscall error flag */ \ - lw a0, 44(sp); /* pass mask as arg1 */ \ - CDISABLE; \ - lw gp, 32(sp); \ - lw v0, 36(sp); /* restore syscall result */ \ - lw a3, 40(sp); /* restore syscall error flag */ \ - lw ra, 28(sp); /* restore return address */ \ - RESTORESTK; \ - bne a3, zero, SYSCALL_ERROR_LABEL; \ - L(pseudo_end): -#endif - -# define PUSHARGS_0 /* nothing to do */ -# define PUSHARGS_1 PUSHARGS_0 sw a0, 0(sp); -# define PUSHARGS_2 PUSHARGS_1 sw a1, 4(sp); -# define PUSHARGS_3 PUSHARGS_2 sw a2, 8(sp); -# define PUSHARGS_4 PUSHARGS_3 sw a3, 12(sp); -# define PUSHARGS_5 PUSHARGS_4 /* handeld by SAVESTK_## */ -# define PUSHARGS_6 PUSHARGS_5 -# define PUSHARGS_7 PUSHARGS_6 - -# define POPARGS_0 /* nothing to do */ -# define POPARGS_1 POPARGS_0 lw a0, 0(sp); -# define POPARGS_2 POPARGS_1 lw a1, 4(sp); -# define POPARGS_3 POPARGS_2 lw a2, 8(sp); -# define POPARGS_4 POPARGS_3 lw a3, 12(sp); -# define POPARGS_5 POPARGS_4 /* args already in new stackframe */ -# define POPARGS_6 POPARGS_5 -# define POPARGS_7 POPARGS_6 - - -# define STKSPACE 48 -# define SAVESTK_0 subu sp, STKSPACE -# define SAVESTK_1 SAVESTK_0 -# define SAVESTK_2 SAVESTK_1 -# define SAVESTK_3 SAVESTK_2 -# define SAVESTK_4 SAVESTK_3 -# define SAVESTK_5 lw t0, 16(sp); \ - subu sp, STKSPACE; \ - sw t0, 16(sp) - -# define SAVESTK_6 lw t0, 16(sp); \ - lw t1, 20(sp); \ - subu sp, STKSPACE; \ - sw t0, 16(sp); \ - sw t1, 20(sp) - -# define SAVESTK_7 lw t0, 16(sp); \ - lw t1, 20(sp); \ - lw t2, 24(sp); \ - subu sp, STKSPACE; \ - sw t0, 16(sp); \ - sw t1, 20(sp); \ - sw t2, 24(sp) - -# define RESTORESTK addu sp, STKSPACE - - -# ifdef IS_IN_libpthread -# define CENABLE la t9, __pthread_enable_asynccancel; jalr t9; -# define CDISABLE la t9, __pthread_disable_asynccancel; jalr t9; -# define __local_multiple_threads __pthread_multiple_threads -# elif defined IS_IN_librt -# define CENABLE la t9, __librt_enable_asynccancel; jalr t9; -# define CDISABLE la t9, __librt_disable_asynccancel; jalr t9; -# define __local_multiple_threads __librt_multiple_threads -# else -# define CENABLE la t9, __libc_enable_asynccancel; jalr t9; -# define CDISABLE la t9, __libc_disable_asynccancel; jalr t9; -# define __local_multiple_threads __libc_multiple_threads -# endif - -# ifndef __ASSEMBLER__ -extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P(reg) lw reg, __local_multiple_threads -#endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/mips/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/mips/vfork.S deleted file mode 100644 index 7bbab5c59c..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/mips/vfork.S +++ /dev/null @@ -1,104 +0,0 @@ -/* Copyright (C) 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* vfork() is just a special case of clone(). */ - -#include <sys/asm.h> -#include <sysdep.h> -#include <asm/unistd.h> - -/* int vfork() */ - - .text -LOCALSZ= 1 -FRAMESZ= (((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK -GPOFF= FRAMESZ-(1*SZREG) -NESTED(__vfork,FRAMESZ,sp) -#ifdef __PIC__ - SETUP_GP -#endif - PTR_SUBU sp, FRAMESZ - SETUP_GP64 (a5, __vfork) -#ifdef __PIC__ - SAVE_GP (GPOFF) -#endif -#ifdef PROF -# if (_MIPS_SIM != _ABIO32) - PTR_S a5, GPOFF(sp) -# endif - .set noat - move $1, ra -# if (_MIPS_SIM == _ABIO32) - subu sp,sp,8 -# endif - jal _mcount - .set at -# if (_MIPS_SIM != _ABIO32) - PTR_L a5, GPOFF(sp) -# endif -#endif - - /* If libpthread is loaded, we need to call fork instead. */ -#ifdef SHARED - PTR_L a0, __libc_pthread_functions -#else - .weak pthread_create - PTR_LA a0, pthread_create -#endif - - PTR_ADDU sp, FRAMESZ - - bnez a0, L(call_fork) - - li a0, 0x4112 /* CLONE_VM | CLONE_VFORK | SIGCHLD */ - move a1, sp - - /* Do the system call */ - li v0,__NR_clone - syscall - - bnez a3,L(error) - - /* Successful return from the parent or child. */ - RESTORE_GP64 - ret - - /* Something bad happened -- no child created. */ -L(error): -#ifdef __PIC__ - PTR_LA t9, __syscall_error - RESTORE_GP64 - jr t9 -#else - RESTORE_GP64 - j __syscall_error -#endif - -L(call_fork): -#ifdef __PIC__ - PTR_LA t9, fork - RESTORE_GP64 - jr t9 -#else - RESTORE_GP64 - j fork -#endif - END(__vfork) - -libc_hidden_def(__vfork) -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/mq_notify.c b/linuxthreads/sysdeps/unix/sysv/linux/mq_notify.c deleted file mode 100644 index e9c2b6e79a..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/mq_notify.c +++ /dev/null @@ -1,287 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contribute by Ulrich Drepper <drepper@redhat.com>, 2004. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <assert.h> -#include <errno.h> -#include <fcntl.h> -#include <mqueue.h> -#include <pthread.h> -#include <signal.h> -#include <stdlib.h> -#include <string.h> -#include <sysdep.h> -#include <unistd.h> -#include <sys/socket.h> -#include <not-cancel.h> - - -#ifdef __NR_mq_notify - -/* Defined in the kernel headers: */ -#define NOTIFY_COOKIE_LEN 32 /* Length of the cookie used. */ -#define NOTIFY_WOKENUP 1 /* Code for notifcation. */ -#define NOTIFY_REMOVED 2 /* Code for closed message queue - of de-notifcation. */ - - -/* Data structure for the queued notification requests. */ -union notify_data -{ - struct - { - void (*fct) (union sigval); /* The function to run. */ - union sigval param; /* The parameter to pass. */ - pthread_attr_t *attr; /* Attributes to create the thread with. */ - /* NB: on 64-bit machines the struct as a size of 24 bytes. Which means - byte 31 can still be used for returning the status. */ - }; - char raw[NOTIFY_COOKIE_LEN]; -}; - - -/* Keep track of the initialization. */ -static pthread_once_t once = PTHREAD_ONCE_INIT; - - -/* The netlink socket. */ -static int netlink_socket = -1; - - -/* Barrier used to make sure data passed to the new thread is not - resused by the parent. */ -static pthread_barrier_t notify_barrier; - - -/* Modify the signal mask. We move this into a separate function so - that the stack space needed for sigset_t is not deducted from what - the thread can use. */ -static int -__attribute__ ((noinline)) -change_sigmask (int how, sigset_t *oss) -{ - sigset_t ss; - sigfillset (&ss); - return pthread_sigmask (how, &ss, oss); -} - - -/* The function used for the notification. */ -static void * -notification_function (void *arg) -{ - /* Copy the function and parameter so that the parent thread can go - on with its life. */ - volatile union notify_data *data = (volatile union notify_data *) arg; - void (*fct) (union sigval) = data->fct; - union sigval param = data->param; - - /* Let the parent go. */ - (void) pthread_barrier_wait (¬ify_barrier); - - /* Make the thread detached. */ - (void) pthread_detach (pthread_self ()); - - /* The parent thread has all signals blocked. This is probably a - bit surprising for this thread. So we unblock all of them. */ - (void) change_sigmask (SIG_UNBLOCK, NULL); - - /* Now run the user code. */ - fct (param); - - /* And we are done. */ - return NULL; -} - - -/* Helper thread. */ -static void * -helper_thread (void *arg) -{ - while (1) - { - union notify_data data; - - ssize_t n = recv (netlink_socket, &data, sizeof (data), - MSG_NOSIGNAL | MSG_WAITALL); - if (n < NOTIFY_COOKIE_LEN) - continue; - - if (data.raw[NOTIFY_COOKIE_LEN - 1] == NOTIFY_WOKENUP) - { - /* Just create the thread as instructed. There is no way to - report a problem with creating a thread. */ - pthread_t th; - if (__builtin_expect (pthread_create (&th, data.attr, - notification_function, &data) - == 0, 0)) - /* Since we passed a pointer to DATA to the new thread we have - to wait until it is done with it. */ - (void) pthread_barrier_wait (¬ify_barrier); - } - else if (data.raw[NOTIFY_COOKIE_LEN - 1] == NOTIFY_REMOVED) - /* The only state we keep is the copy of the thread attributes. */ - free (data.attr); - } - return NULL; -} - - -static void -reset_once (void) -{ - once = PTHREAD_ONCE_INIT; -} - - -static void -init_mq_netlink (void) -{ - /* This code might be called a second time after fork(). The file - descriptor is inherited from the parent. */ - if (netlink_socket == -1) - { - /* Just a normal netlink socket, not bound. */ - netlink_socket = socket (AF_NETLINK, SOCK_RAW, 0); - /* No need to do more if we have no socket. */ - if (netlink_socket == -1) - return; - - /* Make sure the descriptor is closed on exec. */ - if (fcntl (netlink_socket, F_SETFD, FD_CLOEXEC) != 0) - goto errout; - } - - int err = 1; - - /* Initialize the barrier. */ - if (__builtin_expect (pthread_barrier_init (¬ify_barrier, NULL, 2) == 0, - 0)) - { - /* Create the helper thread. */ - pthread_attr_t attr; - (void) pthread_attr_init (&attr); - (void) pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); - /* We do not need much stack space, the bare minimum will be enough. */ - (void) pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN); - - /* Temporarily block all signals so that the newly created - thread inherits the mask. */ - sigset_t oss; - int have_no_oss = change_sigmask (SIG_BLOCK, &oss); - - pthread_t th; - err = pthread_create (&th, &attr, helper_thread, NULL); - - /* Reset the signal mask. */ - if (!have_no_oss) - pthread_sigmask (SIG_SETMASK, &oss, NULL); - - (void) pthread_attr_destroy (&attr); - - if (err == 0) - { - static int added_atfork; - - if (added_atfork == 0 - && pthread_atfork (NULL, NULL, reset_once) != 0) - { - /* The child thread will call recv() which is a - cancellation point. */ - (void) pthread_cancel (th); - err = 1; - } - else - added_atfork = 1; - } - } - - if (err != 0) - { - errout: - close_not_cancel_no_status (netlink_socket); - netlink_socket = -1; - } -} - - -/* Register notification upon message arrival to an empty message queue - MQDES. */ -int -mq_notify (mqd_t mqdes, const struct sigevent *notification) -{ - /* Make sure the type is correctly defined. */ - assert (sizeof (union notify_data) == NOTIFY_COOKIE_LEN); - - /* Special treatment needed for SIGEV_THREAD. */ - if (notification == NULL || notification->sigev_notify != SIGEV_THREAD) - return INLINE_SYSCALL (mq_notify, 2, mqdes, notification); - - /* The kernel cannot directly start threads. This will have to be - done at userlevel. Since we cannot start threads from signal - handlers we have to create a dedicated thread which waits for - notifications for arriving messages and creates threads in - response. */ - - /* Initialize only once. */ - pthread_once (&once, init_mq_netlink); - - /* If we cannot create the netlink socket we cannot provide - SIGEV_THREAD support. */ - if (__builtin_expect (netlink_socket == -1, 0)) - { - __set_errno (ENOSYS); - return -1; - } - - /* Create the cookie. It will hold almost all the state. */ - union notify_data data; - memset (&data, '\0', sizeof (data)); - data.fct = notification->sigev_notify_function; - data.param = notification->sigev_value; - - if (notification->sigev_notify_attributes != NULL) - { - /* The thread attribute has to be allocated separately. */ - data.attr = (pthread_attr_t *) malloc (sizeof (pthread_attr_t)); - if (data.attr == NULL) - return -1; - - memcpy (data.attr, notification->sigev_notify_attributes, - sizeof (pthread_attr_t)); - } - - /* Construct the new request. */ - struct sigevent se; - se.sigev_notify = SIGEV_THREAD; - se.sigev_signo = netlink_socket; - se.sigev_value.sival_ptr = &data; - - /* Tell the kernel. */ - int retval = INLINE_SYSCALL (mq_notify, 2, mqdes, &se); - - /* If it failed, free the allocated memory. */ - if (__builtin_expect (retval != 0, 0)) - free (data.attr); - - return retval; -} - -#else -# include <sysdeps/generic/mq_notify.c> -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/Makefile b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/Makefile deleted file mode 100644 index e98c9bd866..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/Makefile +++ /dev/null @@ -1,2 +0,0 @@ -# pull in __syscall_error routine -libpthread-routines += sysdep diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/Versions b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/Versions deleted file mode 100644 index 326307c30c..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/Versions +++ /dev/null @@ -1,5 +0,0 @@ -libpthread { - GLIBC_2.3.4 { - longjmp; siglongjmp; - } -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h deleted file mode 100644 index 865da8e8ca..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h +++ /dev/null @@ -1,159 +0,0 @@ -/* Copyright (C) 2003, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .section ".text"; \ - ENTRY (name) \ - SINGLE_THREAD_P; \ - bne- .Lpseudo_cancel; \ - DO_CALL (SYS_ify (syscall_name)); \ - PSEUDO_RET; \ - .Lpseudo_cancel: \ - stwu 1,-48(1); \ - mflr 9; \ - stw 9,52(1); \ - CGOTSETUP; \ - DOCARGS_##args; /* save syscall args around CENABLE. */ \ - CENABLE; \ - stw 3,16(1); /* store CENABLE return value (MASK). */ \ - UNDOCARGS_##args; /* restore syscall args. */ \ - DO_CALL (SYS_ify (syscall_name)); \ - mfcr 0; /* save CR/R3 around CDISABLE. */ \ - stw 3,8(1); \ - stw 0,12(1); \ - lwz 3,16(1); /* pass MASK to CDISABLE. */ \ - CDISABLE; \ - lwz 4,52(1); \ - lwz 0,12(1); /* restore CR/R3. */ \ - lwz 3,8(1); \ - CGOTRESTORE; \ - mtlr 4; \ - mtcr 0; \ - addi 1,1,48; - -# define DOCARGS_0 -# define UNDOCARGS_0 - -# define DOCARGS_1 stw 3,20(1); DOCARGS_0 -# define UNDOCARGS_1 lwz 3,20(1); UNDOCARGS_0 - -# define DOCARGS_2 stw 4,24(1); DOCARGS_1 -# define UNDOCARGS_2 lwz 4,24(1); UNDOCARGS_1 - -# define DOCARGS_3 stw 5,28(1); DOCARGS_2 -# define UNDOCARGS_3 lwz 5,28(1); UNDOCARGS_2 - -# define DOCARGS_4 stw 6,32(1); DOCARGS_3 -# define UNDOCARGS_4 lwz 6,32(1); UNDOCARGS_3 - -# define DOCARGS_5 stw 7,36(1); DOCARGS_4 -# define UNDOCARGS_5 lwz 7,36(1); UNDOCARGS_4 - -# define DOCARGS_6 stw 8,40(1); DOCARGS_5 -# define UNDOCARGS_6 lwz 8,40(1); UNDOCARGS_5 - -# define CGOTSETUP -# define CGOTRESTORE - -# ifdef IS_IN_libpthread -# define CENABLE bl __pthread_enable_asynccancel@local -# define CDISABLE bl __pthread_disable_asynccancel@local -# elif !defined NOT_IN_libc -# define CENABLE bl __libc_enable_asynccancel@local -# define CDISABLE bl __libc_disable_asynccancel@local -# else -# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel) -# if defined HAVE_AS_REL16 && defined PIC -# undef CGOTSETUP -# define CGOTSETUP \ - bcl 20,31,1f; \ - 1: stw 30,44(1); \ - mflr 30; \ - addis 30,30,_GLOBAL_OFFSET_TABLE-1b@ha; \ - addi 30,30,_GLOBAL_OFFSET_TABLE-1b@l -# undef CGOTRESTORE -# define CGOTRESTORE \ - lwz 30,44(1) -# endif -# endif - -# ifdef HAVE_TLS_SUPPORT -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, p_multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - lwz 10,MULTIPLE_THREADS_OFFSET(2); \ - cmpwi 10,0 -# endif -# else -# if !defined NOT_IN_libc -# define __local_multiple_threads __libc_multiple_threads -# else -# define __local_multiple_threads __librt_multiple_threads -# endif -# ifndef __ASSEMBLER__ -extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# else -# if !defined PIC -# define SINGLE_THREAD_P \ - lis 10,__local_multiple_threads@ha; \ - lwz 10,__local_multiple_threads@l(10); \ - cmpwi 10,0 -# else -# ifdef HAVE_ASM_PPC_REL16 -# define SINGLE_THREAD_P \ - mflr 9; \ - bcl 20,31,1f; \ -1:mflr 10; \ - addis 10,10,__local_multiple_threads-1b@ha; \ - lwz 10,__local_multiple_threads-1b@l(10); \ - mtlr 9; \ - cmpwi 10,0 -# else -# define SINGLE_THREAD_P \ - mflr 9; \ - bl _GLOBAL_OFFSET_TABLE_@local-4; \ - mflr 10; \ - mtlr 9; \ - lwz 10,__local_multiple_threads@got(10); \ - lwz 10,0(10); \ - cmpwi 10,0 -# endif -# endif -# endif -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S deleted file mode 100644 index 724d4cc541..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S +++ /dev/null @@ -1,86 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <kernel-features.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - -#ifdef __NR_vfork -# ifdef SHARED - mflr 9 -# ifdef HAVE_ASM_PPC_REL16 - bcl 20,31,1f -1: mflr 10 - addis 10,10,__libc_pthread_functions-1b@ha - lwz 10,__libc_pthread_functions-1b@l(10) - mtlr 9 -# else - bl _GLOBAL_OFFSET_TABLE_@local-4 - mflr 10 - mtlr 9 - lwz 10,__libc_pthread_functions@got(10) - lwz 10,0(10) -# endif -# else - .weak pthread_create - lis 10,pthread_create@ha - la 10,pthread_create@l(10) -# endif - - cmpwi 10,0 - bne- .Lhidden_fork - - DO_CALL (SYS_ify (vfork)); - -# ifdef __ASSUME_VFORK_SYSCALL - PSEUDO_RET -# else - bnslr+ - /* Check if vfork syscall is known at all. */ - cmpwi r3,ENOSYS - bne- .Lsyscall_error - -# endif - -.Lhidden_fork: - b HIDDEN_JUMPTARGET(__fork) - -#endif - -#ifndef __ASSUME_VFORK_SYSCALL - /* If we don't have vfork, fork is close enough. */ - - DO_CALL (SYS_ify (fork)); - bnslr+ - -.Lsyscall_error: - b __syscall_error@local -#endif - -PSEUDO_END (__vfork) -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h deleted file mode 100644 index 0c74676766..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h +++ /dev/null @@ -1,127 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .section ".text"; \ - ENTRY (name) \ - SINGLE_THREAD_P; \ - bne- .Lpseudo_cancel; \ - DO_CALL (SYS_ify (syscall_name)); \ - PSEUDO_RET; \ - .Lpseudo_cancel: \ - stdu 1,-128(1); \ - mflr 9; \ - std 9,128+16(1); \ - DOCARGS_##args; /* save syscall args around CENABLE. */ \ - CENABLE; \ - std 3,72(1); /* store CENABLE return value (MASK). */ \ - UNDOCARGS_##args; /* restore syscall args. */ \ - DO_CALL (SYS_ify (syscall_name)); \ - mfcr 0; /* save CR/R3 around CDISABLE. */ \ - std 3,64(1); \ - std 0,8(1); \ - ld 3,72(1); /* pass MASK to CDISABLE. */ \ - CDISABLE; \ - ld 9,128+16(1); \ - ld 0,8(1); /* restore CR/R3. */ \ - ld 3,64(1); \ - mtlr 9; \ - mtcr 0; \ - addi 1,1,128; - -# define DOCARGS_0 -# define UNDOCARGS_0 - -# define DOCARGS_1 std 3,80(1); DOCARGS_0 -# define UNDOCARGS_1 ld 3,80(1); UNDOCARGS_0 - -# define DOCARGS_2 std 4,88(1); DOCARGS_1 -# define UNDOCARGS_2 ld 4,88(1); UNDOCARGS_1 - -# define DOCARGS_3 std 5,96(1); DOCARGS_2 -# define UNDOCARGS_3 ld 5,96(1); UNDOCARGS_2 - -# define DOCARGS_4 std 6,104(1); DOCARGS_3 -# define UNDOCARGS_4 ld 6,104(1); UNDOCARGS_3 - -# define DOCARGS_5 std 7,112(1); DOCARGS_4 -# define UNDOCARGS_5 ld 7,112(1); UNDOCARGS_4 - -# define DOCARGS_6 std 8,120(1); DOCARGS_5 -# define UNDOCARGS_6 ld 8,120(1); UNDOCARGS_5 - -# ifdef IS_IN_libpthread -# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel) -# define __local_multiple_threads __pthread_multiple_threads -# elif !defined NOT_IN_libc -# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel) -# define __local_multiple_threads __libc_multiple_threads -# else -# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel); nop -# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel); nop -# define __local_multiple_threads __librt_multiple_threads -# endif - -# ifdef HAVE_TLS_SUPPORT -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, p_multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - lwz 10,MULTIPLE_THREADS_OFFSET(13); \ - cmpwi 10,0 -# endif -# else /* !HAVE_TLS_SUPPORT */ -# ifndef __ASSEMBLER__ -extern int __local_multiple_threads -# if !defined NOT_IN_libc || defined IS_IN_libpthread - attribute_hidden; -# else - ; -# endif -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P \ - .section ".toc","aw"; \ -.LC__local_multiple_threads:; \ - .tc __local_multiple_threads[TC],__local_multiple_threads; \ - .previous; \ - ld 10,.LC__local_multiple_threads@toc(2); \ - lwz 10,0(10); \ - cmpwi 10,0 -# endif -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S deleted file mode 100644 index b408e31b7b..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S +++ /dev/null @@ -1,91 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <kernel-features.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -#ifdef SHARED - .section ".toc","aw" -.LC0: - .tc __libc_pthread_functions[TC],__libc_pthread_functions - .section ".text" - .align 2 -#endif - -ENTRY (__vfork) - -#ifdef __NR_vfork - -# ifdef SHARED - ld 10,.LC0@toc(2) - ld 10,0(10) - cmpwi 10,0 - bne- HIDDEN_JUMPTARGET(__fork) -# else - .weak pthread_create - lis 10,pthread_create@highest - ori 10,10,pthread_create@higher - sldi 10,10,32 - oris 10,10,pthread_create@h - ori 10,10,pthread_create@l - cmpwi 10,0 - bne- .Lhidden_fork -# endif - - DO_CALL (SYS_ify (vfork)); - -# ifdef __ASSUME_VFORK_SYSCALL - PSEUDO_RET -# else - bnslr+ - /* Check if vfork syscall is known at all. */ - cmpdi r3,ENOSYS -# ifdef SHARED - bne JUMPTARGET(__syscall_error) -# else - bne- .Lsyscall_error -# endif - -# endif -#endif - -#ifndef __ASSUME_VFORK_SYSCALL - /* If we don't have vfork, fork is close enough. */ - - DO_CALL (SYS_ify (fork)); - PSEUDO_RET -#endif - -# ifndef SHARED -.Lhidden_fork: - b HIDDEN_JUMPTARGET(__fork) -.Lsyscall_error: - b JUMPTARGET(__syscall_error) -# endif - -PSEUDO_END (__vfork) -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/ptlongjmp.c b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/ptlongjmp.c deleted file mode 100644 index 177256c7fb..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/ptlongjmp.c +++ /dev/null @@ -1,70 +0,0 @@ -/* Linuxthreads - a simple clone()-based implementation of Posix */ -/* threads for Linux. */ -/* Copyright (C) 1998 Xavier Leroy (Xavier.Leroy@inria.fr) */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU Library General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU Library General Public License for more details. */ - -/* Redefine siglongjmp and longjmp so that they interact correctly - with cleanup handlers */ -/* Derived from linuxthreads/ptlongjmp.c & added AltiVec/VMX versioning. */ -#include "pthread.h" -#include <setjmp.h> -#include <bits/wordsize.h> -#include <shlib-compat.h> -#if defined SHARED -# if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_3_4) - -/* These functions are not declared anywhere since they shouldn't be - used at another place but here. */ -extern void __novmx__libc_siglongjmp (sigjmp_buf env, int val) - __attribute__ ((noreturn)); -extern void __novmx__libc_longjmp (sigjmp_buf env, int val) - __attribute__ ((noreturn)); - - -void __novmx_siglongjmp (sigjmp_buf env, int val) -{ - __novmx__libc_siglongjmp (env, val); -} - -void __novmx_longjmp (jmp_buf env, int val) -{ - __novmx__libc_longjmp (env, val); -} - -# if __WORDSIZE == 64 -symbol_version (__novmx_longjmp,longjmp,GLIBC_2.3); -symbol_version (__novmx_siglongjmp,siglongjmp,GLIBC_2.3); -# else -symbol_version (__novmx_longjmp,longjmp,GLIBC_2.0); -symbol_version (__novmx_siglongjmp,siglongjmp,GLIBC_2.0); -# endif -# endif /* SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_3_4) ) */ - -/* These functions are not declared anywhere since they shouldn't be - used at another place but here. */ -extern void __vmx__libc_siglongjmp (sigjmp_buf env, int val) - __attribute__ ((noreturn)); -extern void __vmx__libc_longjmp (sigjmp_buf env, int val) - __attribute__ ((noreturn)); - -void __vmx_siglongjmp (sigjmp_buf env, int val) -{ - __vmx__libc_siglongjmp (env, val); -} - -void __vmx_longjmp (jmp_buf env, int val) -{ - __vmx__libc_longjmp (env, val); -} -default_symbol_version (__vmx_longjmp,longjmp,GLIBC_2.3.4); -default_symbol_version (__vmx_siglongjmp,siglongjmp,GLIBC_2.3.4); -#endif /* SHARED */ diff --git a/linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c b/linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c deleted file mode 100644 index 5528c55ca5..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c +++ /dev/null @@ -1,56 +0,0 @@ -/* Internal sigsuspend system call for LinuxThreads. Generic Linux version. - Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <signal.h> -#include <unistd.h> - -#include <sysdep.h> -#include <sys/syscall.h> -#include <linuxthreads/internals.h> - -#include "kernel-features.h" - -void -__pthread_sigsuspend (const sigset_t *set) -{ - INTERNAL_SYSCALL_DECL (err); -#if !__ASSUME_REALTIME_SIGNALS - static int __pthread_missing_rt_sigs; - -# ifdef __NR_rt_sigsuspend - /* First try the RT signals. */ - if (!__pthread_missing_rt_sigs) - { - /* XXX The size argument hopefully will have to be changed to the - real size of the user-level sigset_t. */ - int r; - r = INTERNAL_SYSCALL (rt_sigsuspend, err, 2, set, _NSIG / 8); - if (INTERNAL_SYSCALL_ERRNO (r, err) != ENOSYS) - return; - - __pthread_missing_rt_sigs = 1; - } -# endif - - INTERNAL_SYSCALL (sigsuspend, err, 3, 0, 0, set->__val[0]); -#else - INTERNAL_SYSCALL (rt_sigsuspend, err, 2, set, _NSIG / 8); -#endif -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/raise.c b/linuxthreads/sysdeps/unix/sysv/linux/raise.c deleted file mode 100644 index 9dad2b2697..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/raise.c +++ /dev/null @@ -1,36 +0,0 @@ -/* Copyright (C) 1991, 1996, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <signal.h> -#include <unistd.h> -#include <bits/libc-lock.h> - -#ifndef SHARED -weak_extern (__pthread_raise) -#endif - -/* Raise the signal SIG. */ -int -raise (sig) - int sig; -{ - return __libc_maybe_call2 (pthread_raise, (sig), - __kill (__getpid (), sig)); -} -libc_hidden_def (raise) -weak_alias (raise, gsignal) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/register-atfork.c b/linuxthreads/sysdeps/unix/sysv/linux/register-atfork.c deleted file mode 100644 index e4490e73e9..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/register-atfork.c +++ /dev/null @@ -1,88 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <stdlib.h> -#include "fork.h" - - -int -__register_atfork (prepare, parent, child, dso_handle) - void (*prepare) (void); - void (*parent) (void); - void (*child) (void); - void *dso_handle; -{ - struct fork_handler *new_prepare = NULL; - struct fork_handler *new_parent = NULL; - struct fork_handler *new_child = NULL; - - if (prepare != NULL) - { - new_prepare = (struct fork_handler *) malloc (sizeof (*new_prepare)); - if (new_prepare == NULL) - goto out1; - - new_prepare->handler = prepare; - new_prepare->dso_handle = dso_handle; - } - - if (parent != NULL) - { - new_parent = (struct fork_handler *) malloc (sizeof (*new_parent)); - if (new_parent == NULL) - goto out2; - - new_parent->handler = parent; - new_parent->dso_handle = dso_handle; - } - - if (child != NULL) - { - new_child = (struct fork_handler *) malloc (sizeof (*new_child)); - if (new_child == NULL) - { - free (new_parent); - out2: - free (new_prepare); - out1: - return errno; - } - - new_child->handler = child; - new_child->dso_handle = dso_handle; - } - - /* Get the lock to not conflict with running forks. */ - __libc_lock_lock (__fork_block.lock); - - /* Now that we have all the handlers allocate enqueue them. */ - if (new_prepare != NULL) - list_add_tail (&new_prepare->list, &__fork_block.prepare_list); - if (new_parent != NULL) - list_add_tail (&new_parent->list, &__fork_block.parent_list); - if (new_child != NULL) - list_add_tail (&new_child->list, &__fork_block.child_list); - - /* Release the lock. */ - __libc_lock_unlock (__fork_block.lock); - - return 0; -} -libc_hidden_def (__register_atfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/s390/bits/typesizes.h b/linuxthreads/sysdeps/unix/sysv/linux/s390/bits/typesizes.h deleted file mode 100644 index bee7639f06..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/s390/bits/typesizes.h +++ /dev/null @@ -1,72 +0,0 @@ -/* bits/typesizes.h -- underlying types for *_t. Linux/s390 version. - Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _BITS_TYPES_H -# error "Never include <bits/typesizes.h> directly; use <sys/types.h> instead." -#endif - -#ifndef _BITS_TYPESIZES_H -#define _BITS_TYPESIZES_H 1 - -/* See <bits/types.h> for the meaning of these macros. This file exists so - that <bits/types.h> need not vary across different GNU platforms. */ - -#define __DEV_T_TYPE __UQUAD_TYPE -#define __UID_T_TYPE __U32_TYPE -#define __GID_T_TYPE __U32_TYPE -#define __INO_T_TYPE __ULONGWORD_TYPE -#define __INO64_T_TYPE __UQUAD_TYPE -#define __MODE_T_TYPE __U32_TYPE -#define __NLINK_T_TYPE __UWORD_TYPE -#define __OFF_T_TYPE __SLONGWORD_TYPE -#define __OFF64_T_TYPE __SQUAD_TYPE -#define __PID_T_TYPE __S32_TYPE -#define __RLIM_T_TYPE __ULONGWORD_TYPE -#define __RLIM64_T_TYPE __UQUAD_TYPE -#define __BLKCNT_T_TYPE __SLONGWORD_TYPE -#define __BLKCNT64_T_TYPE __SQUAD_TYPE -#define __FSBLKCNT_T_TYPE __ULONGWORD_TYPE -#define __FSBLKCNT64_T_TYPE __UQUAD_TYPE -#define __FSFILCNT_T_TYPE __ULONGWORD_TYPE -#define __FSFILCNT64_T_TYPE __UQUAD_TYPE -#define __ID_T_TYPE __U32_TYPE -#define __CLOCK_T_TYPE __SLONGWORD_TYPE -#define __TIME_T_TYPE __SLONGWORD_TYPE -#define __USECONDS_T_TYPE __U32_TYPE -#define __SUSECONDS_T_TYPE __SLONGWORD_TYPE -#define __DADDR_T_TYPE __S32_TYPE -#define __SWBLK_T_TYPE __SLONGWORD_TYPE -#define __KEY_T_TYPE __S32_TYPE -#define __CLOCKID_T_TYPE __S32_TYPE -#define __TIMER_T_TYPE __S32_TYPE -#define __BLKSIZE_T_TYPE __SLONGWORD_TYPE -#define __FSID_T_TYPE struct { int __val[2]; } -#if defined __GNUC__ && __GNUC__ <= 2 -/* Compatibility with g++ 2.95.x. */ -#define __SSIZE_T_TYPE __SWORD_TYPE -#else -/* size_t is unsigned long int on s390 -m31. */ -#define __SSIZE_T_TYPE __SLONGWORD_TYPE -#endif - -/* Number of descriptors that can fit in an `fd_set'. */ -#define __FD_SETSIZE 1024 - - -#endif /* bits/typesizes.h */ diff --git a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c b/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c deleted file mode 100644 index b7d901c4c6..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c +++ /dev/null @@ -1,154 +0,0 @@ -/* Special .init and .fini section support for S/390. - Copyright (C) 2000, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it - and/or modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - The GNU C Library is distributed in the hope that it will be - useful, but WITHOUT ANY WARRANTY; without even the implied warranty - of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* This file is compiled into assembly code which is then munged by a sed - script into two files: crti.s and crtn.s. - - * crti.s puts a function prologue at the beginning of the - .init and .fini sections and defines global symbols for - those addresses, so they can be called as functions. - - * crtn.s puts the corresponding function epilogues - in the .init and .fini sections. */ - -__asm__ ("\ -\n\ -#include \"defs.h\"\n\ -\n\ -/*@HEADER_ENDS*/\n\ -\n\ -/*@TESTS_BEGIN*/\n\ -\n\ -/*@TESTS_END*/\n\ -\n\ -/*@_init_PROLOG_BEGINS*/\n\ -\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ -.globl _init\n\ - .type _init,@function\n\ -_init:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 36\n\ - STM 6,15,24(15)\n\ - BRAS 13,.LTN1_0\n\ -.LT1_0:\n\ -.LC13:\n\ - .long __pthread_initialize_minimal@PLT-.LT1_0\n\ -.LC14:\n\ - .long __gmon_start__@GOT\n\ -.LC15:\n\ - .long _GLOBAL_OFFSET_TABLE_-.LT1_0\n\ -.LTN1_0:\n\ - LR 1,15\n\ - AHI 15,-96\n\ - ST 1,0(15)\n\ - L 12,.LC15-.LT1_0(13)\n\ - AR 12,13\n\ - L 1,.LC13-.LT1_0(13)\n\ - LA 1,0(1,13)\n\ - BASR 14,1\n\ - L 1,.LC14-.LT1_0(13)\n\ - L 1,0(1,12)\n\ - LTR 1,1\n\ - JE .L22\n\ - BASR 14,1\n\ -.L22:\n\ -#APP\n\ - .align 4,0x07\n\ - END_INIT\n\ -\n\ -/*@_init_PROLOG_ENDS*/\n\ -\n\ -/*@_init_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ - L 4,152(15)\n\ - LM 6,15,120(15)\n\ - BR 4\n\ -#APP\n\ - END_INIT\n\ -\n\ -/*@_init_EPILOG_ENDS*/\n\ -\n\ -/*@_fini_PROLOG_BEGINS*/\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ -.globl _fini\n\ - .type _fini,@function\n\ -_fini:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 30\n\ - STM 6,15,24(15)\n\ - BRAS 13,.LTN2_0\n\ -.LT2_0:\n\ -.LC17:\n\ - .long _GLOBAL_OFFSET_TABLE_-.LT2_0\n\ -.LTN2_0:\n\ - LR 1,15\n\ - AHI 15,-96\n\ - ST 1,0(15)\n\ - L 12,.LC17-.LT2_0(13)\n\ - AR 12,13\n\ -#APP\n\ - .align 4,0x07\n\ - END_FINI\n\ -\n\ -/*@_fini_PROLOG_ENDS*/\n\ -\n\ -/*@_fini_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ - L 4,152(15)\n\ - LM 6,15,120(15)\n\ - BR 4\n\ -#APP\n\ - END_FINI\n\ -\n\ -/*@_fini_EPILOG_ENDS*/\n\ -\n\ -/*@TRAILER_BEGINS*/\ -"); diff --git a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h deleted file mode 100644 index 06f7aed7dc..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h +++ /dev/null @@ -1,137 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# if !defined NOT_IN_libc || defined IS_IN_libpthread - -# define PSEUDO_CANCEL(name, syscall_name, args) \ -L(pseudo_cancel): \ - STM_##args \ - stm %r12,%r15,48(%r15); \ - lr %r14,%r15; \ - ahi %r15,-96; \ - st %r14,0(%r15); \ - basr %r13,0; \ -0: l %r1,1f-0b(%r13); \ - bas %r14,0(%r1,%r13); \ - lr %r0,%r2; \ - LM_##args \ - DO_CALL(syscall_name, args); \ - l %r1,2f-0b(%r13); \ - lr %r12,%r2; \ - lr %r2,%r0; \ - bas %r14,0(%r1,%r13); \ - lr %r2,%r12; \ - lm %r12,%r15,48+96(%r15); \ - j L(pseudo_check); \ -1: .long CENABLE-0b; \ -2: .long CDISABLE-0b; - -# else /* !libc.so && !libpthread.so */ - -# define PSEUDO_CANCEL(name, syscall_name, args) \ -L(pseudo_cancel): \ - STM_##args \ - stm %r11,%r15,44(%r15); \ - lr %r14,%r15; \ - ahi %r15,-96; \ - st %r14,0(%r15); \ - basr %r13,0; \ -0: l %r12,3f-0b(%r13); \ - l %r1,1f-0b(%r13); \ - la %r12,0(%r12,%r13); \ - bas %r14,0(%r1,%r13); \ - lr %r0,%r2; \ - LM_##args \ - DO_CALL(syscall_name, args); \ - l %r1,2f-0b(%r13); \ - lr %r11,%r2; \ - lr %r2,%r0; \ - bas %r14,0(%r1,%r13); \ - lr %r2,%r11; \ - lm %r11,%r15,44+96(%r15); \ - j L(pseudo_check); \ -1: .long CENABLE@PLT-0b; \ -2: .long CDISABLE@PLT-0b; \ -3: .long _GLOBAL_OFFSET_TABLE_-0b; - -# endif - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -PSEUDO_CANCEL(name, syscall_name, args) \ -ENTRY(name) \ - SINGLE_THREAD_P(%r1) \ - jne L(pseudo_cancel); \ - DO_CALL(syscall_name, args); \ -L(pseudo_check): \ - lhi %r4,-4095; \ - clr %r2,%r4; \ - jnl SYSCALL_ERROR_LABEL; \ -L(pseudo_end): - -# ifdef IS_IN_libpthread -# define CENABLE __pthread_enable_asynccancel -# define CDISABLE __pthread_disable_asynccancel -# elif !defined NOT_IN_libc -# define CENABLE __libc_enable_asynccancel -# define CDISABLE __libc_disable_asynccancel -# else -# define CENABLE __librt_enable_asynccancel -# define CDISABLE __librt_disable_asynccancel -# endif - -#define STM_0 /* Nothing */ -#define STM_1 st %r2,8(%r15); -#define STM_2 stm %r2,%r3,8(%r15); -#define STM_3 stm %r2,%r4,8(%r15); -#define STM_4 stm %r2,%r5,8(%r15); -#define STM_5 stm %r2,%r5,8(%r15); - -#define LM_0 /* Nothing */ -#define LM_1 l %r2,8+96(%r15); -#define LM_2 lm %r2,%r3,8+96(%r15); -#define LM_3 lm %r2,%r4,8+96(%r15); -#define LM_4 lm %r2,%r5,8+96(%r15); -#define LM_5 lm %r2,%r5,8+96(%r15); - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - p_header.data.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - ear reg,%a0; \ - icm reg,15,MULTIPLE_THREADS_OFFSET(reg); -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S deleted file mode 100644 index 6dfeca86d4..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S +++ /dev/null @@ -1,69 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com> - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - basr %r1,0 -0: -#ifdef SHARED - al %r1,4f-0b(%r1) - l %r1,0(%r1) - ltr %r1,%r1 -#else - icm %r1,15,4f-0b(%r1) -#endif - jne 1f - - /* Do vfork system call. */ - svc SYS_ify (vfork) - - /* Check for error. */ - lhi %r4,-4095 - clr %r2,%r4 - jnl SYSCALL_ERROR_LABEL - - /* Normal return. */ - br %r14 -1: - basr %r1,0 -2: - al %r1,3f-2b(%r1) - br %r1 -3: - .long HIDDEN_JUMPTARGET(__fork)-2b -4: -#ifdef SHARED - .long __libc_pthread_functions-0b -#else - .weak pthread_create - .long pthread_create -#endif -PSEUDO_END(__vfork) - -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c b/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c deleted file mode 100644 index 540443e6a3..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c +++ /dev/null @@ -1,137 +0,0 @@ -/* Special .init and .fini section support for 64 bit S/390. - Copyright (C) 2001 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it - and/or modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - The GNU C Library is distributed in the hope that it will be - useful, but WITHOUT ANY WARRANTY; without even the implied warranty - of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* This file is compiled into assembly code which is then munged by a sed - script into two files: crti.s and crtn.s. - - * crti.s puts a function prologue at the beginning of the - .init and .fini sections and defines global symbols for - those addresses, so they can be called as functions. - - * crtn.s puts the corresponding function epilogues - in the .init and .fini sections. */ - -__asm__ ("\ -\n\ -#include \"defs.h\"\n\ -\n\ -/*@HEADER_ENDS*/\n\ -\n\ -/*@TESTS_BEGIN*/\n\ -\n\ -/*@TESTS_END*/\n\ -\n\ -/*@_init_PROLOG_BEGINS*/\n\ -\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ -.globl _init\n\ - .type _init,@function\n\ -_init:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 36\n\ - STMG 6,15,48(15)\n\ - LGR 1,15\n\ - AGHI 15,-160\n\ - STG 1,0(15)\n\ - LARL 12,_GLOBAL_OFFSET_TABLE_\n\ - BRASL 14,__pthread_initialize_minimal@PLT\n\ - LARL 1,__gmon_start__@GOTENT\n\ - LG 1,0(1)\n\ - LTGR 1,1\n\ - JE .L22\n\ - BASR 14,1\n\ -.L22:\n\ -#APP\n\ - .align 4,0x07\n\ - END_INIT\n\ -\n\ -/*@_init_PROLOG_ENDS*/\n\ -\n\ -/*@_init_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ - LG 4,272(15)\n\ - LMG 6,15,208(15)\n\ - BR 4\n\ -#APP\n\ - END_INIT\n\ -\n\ -/*@_init_EPILOG_ENDS*/\n\ -\n\ -/*@_fini_PROLOG_BEGINS*/\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ -.globl _fini\n\ - .type _fini,@function\n\ -_fini:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 30\n\ - STMG 6,15,48(15)\n\ - LGR 1,15\n\ - AGHI 15,-160\n\ - STG 1,0(15)\n\ - LARL 12,_GLOBAL_OFFSET_TABLE_\n\ -#APP\n\ - .align 4,0x07\n\ - END_FINI\n\ -\n\ -/*@_fini_PROLOG_ENDS*/\n\ -\n\ -/*@_fini_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ - LG 4,272(15)\n\ - LMG 6,15,208(15)\n\ - BR 4\n\ -#APP\n\ - END_FINI\n\ -\n\ -/*@_fini_EPILOG_ENDS*/\n\ -\n\ -/*@TRAILER_BEGINS*/\n\ - "); diff --git a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-sigsuspend.c b/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-sigsuspend.c deleted file mode 100644 index d57283ad23..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-sigsuspend.c +++ /dev/null @@ -1 +0,0 @@ -#include "../../ia64/pt-sigsuspend.c" diff --git a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h deleted file mode 100644 index f71ef3f689..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h +++ /dev/null @@ -1,116 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -L(pseudo_cancel): \ - STM_##args \ - stmg %r13,%r15,104(%r15); \ - lgr %r14,%r15; \ - aghi %r15,-160; \ - stg %r14,0(%r15); \ - brasl %r14,CENABLE; \ - lgr %r0,%r2; \ - LM_##args \ - DO_CALL(syscall_name, args); \ - lgr %r13,%r2; \ - lgr %r2,%r0; \ - brasl %r14,CDISABLE; \ - lgr %r2,%r13; \ - lmg %r13,%r15,104+160(%r15); \ - j L(pseudo_check); \ -ENTRY(name) \ - SINGLE_THREAD_P \ - jne L(pseudo_cancel); \ - DO_CALL(syscall_name, args); \ -L(pseudo_check): \ - lghi %r4,-4095; \ - clgr %r2,%r4; \ - jgnl SYSCALL_ERROR_LABEL; \ -L(pseudo_end): - -# ifdef IS_IN_libpthread -# define CENABLE __pthread_enable_asynccancel -# define CDISABLE __pthread_disable_asynccancel -# define __local_multiple_threads __pthread_multiple_threads -# elif !defined NOT_IN_libc -# define CENABLE __libc_enable_asynccancel -# define CDISABLE __libc_disable_asynccancel -# define __local_multiple_threads __libc_multiple_threads -# else -# define CENABLE __librt_enable_asynccancel@PLT -# define CDISABLE __librt_disable_asynccancel@PLT -# endif - -#define STM_0 /* Nothing */ -#define STM_1 stg %r2,16(%r15); -#define STM_2 stmg %r2,%r3,16(%r15); -#define STM_3 stmg %r2,%r4,16(%r15); -#define STM_4 stmg %r2,%r5,16(%r15); -#define STM_5 stmg %r2,%r5,16(%r15); - -#define LM_0 /* Nothing */ -#define LM_1 lg %r2,16+160(%r15); -#define LM_2 lmg %r2,%r3,16+160(%r15); -#define LM_3 lmg %r2,%r4,16+160(%r15); -#define LM_4 lmg %r2,%r5,16+160(%r15); -#define LM_5 lmg %r2,%r5,16+160(%r15); - -# if !defined NOT_IN_libc || defined IS_IN_libpthread -# ifndef __ASSEMBLER__ -extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P \ - __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P \ - larl %r1,__local_multiple_threads; \ - icm %r0,15,0(%r1); -# endif - -# else - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - p_header.data.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - ear %r1,%a0; \ - sllg %r1,%r1,32; \ - ear %r1,%a1; \ - icm %r1,15,MULTIPLE_THREADS_OFFSET(%r1); -# endif - -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S deleted file mode 100644 index 199f0017ff..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S +++ /dev/null @@ -1,54 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com> - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) -#ifdef SHARED - larl %r1,__libc_pthread_functions - lg %r1,0(%r1) -#else - .weak pthread_create - larl %r1,pthread_create -#endif - ltgr %r1,%r1 - jgne HIDDEN_JUMPTARGET(__fork) - - /* Do vfork system call. */ - svc SYS_ify (vfork) - - /* Check for error. */ - lghi %r4,-4095 - clgr %r2,%r4 - jgnl SYSCALL_ERROR_LABEL - - /* Normal return. */ - br %r14 -PSEUDO_END(__vfork) - -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sh/pt-initfini.c b/linuxthreads/sysdeps/unix/sysv/linux/sh/pt-initfini.c deleted file mode 100644 index 1cdb98f0f7..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sh/pt-initfini.c +++ /dev/null @@ -1,143 +0,0 @@ -/* Special .init and .fini section support for SH. Linuxthread version. - Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it - and/or modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - The GNU C Library is distributed in the hope that it will be - useful, but WITHOUT ANY WARRANTY; without even the implied warranty - of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* This file is compiled into assembly code which is then munged by a sed - script into two files: crti.s and crtn.s. - - * crti.s puts a function prologue at the beginning of the - .init and .fini sections and defines global symbols for - those addresses, so they can be called as functions. - - * crtn.s puts the corresponding function epilogues - in the .init and .fini sections. */ - -__asm__ ("\n\ -\n\ -#include \"defs.h\"\n\ -\n\ -/*@HEADER_ENDS*/\n\ -\n\ -/*@TESTS_BEGIN*/\n\ -\n\ -/*@TESTS_END*/\n\ -\n\ -/*@_init_PROLOG_BEGINS*/\n\ - .section .init\n\ - .align 5\n\ - .global _init\n\ - .type _init,@function\n\ -_init:\n\ - mov.l r12,@-r15\n\ - mov.l r14,@-r15\n\ - sts.l pr,@-r15\n\ - mova .L22,r0\n\ - mov.l .L22,r12\n\ - add r0,r12\n\ - mova .L24,r0\n\ - mov.l .L24,r1\n\ - add r0,r1\n\ - jsr @r1\n\ - nop\n\ - mova .L23,r0\n\ - mov.l .L23,r1\n\ - add r0,r1\n\ - jsr @r1\n\ - mov r15,r14\n\ - bra 1f\n\ - nop\n\ - .align 2\n\ -.L22:\n\ - .long _GLOBAL_OFFSET_TABLE_\n\ -.L23:\n\ - .long __gmon_start__@PLT\n\ -.L24:\n\ - .long __pthread_initialize_minimal@PLT\n\ -1:\n\ - ALIGN\n\ - END_INIT\n\ -\n\ -/*@_init_PROLOG_ENDS*/\n\ -\n\ -/*@_init_EPILOG_BEGINS*/\n\ - .section .init\n\ - mov r14,r15\n\ - lds.l @r15+,pr\n\ - mov.l @r15+,r14\n\ - rts \n\ - mov.l @r15+,r12\n\ - END_INIT\n\ - .section .text\n\ - .align 5\n\ - .weak __gmon_start__\n\ - .type __gmon_start__,@function\n\ -__gmon_start__:\n\ - mov.l r14,@-r15\n\ - mov r15,r14\n\ - mov r14,r15\n\ - rts \n\ - mov.l @r15+,r14\n\ - \n\ -/*@_init_EPILOG_ENDS*/\n\ -\n\ -/*@_fini_PROLOG_BEGINS*/\n\ - .section .fini\n\ - .align 5\n\ - .global _fini\n\ - .type _fini,@function\n\ -_fini:\n\ - mov.l r12,@-r15\n\ - mov.l r14,@-r15\n\ - sts.l pr,@-r15\n\ - mova .L27,r0\n\ - mov.l .L27,r12\n\ - add r0,r12\n\ - mov r15,r14\n\ - ALIGN\n\ - END_FINI\n\ - bra 1f\n\ - nop\n\ - .align 2\n\ -.L27:\n\ - .long _GLOBAL_OFFSET_TABLE_\n\ -1:\n\ -/*@_fini_PROLOG_ENDS*/\n\ -\n\ -/*@_fini_EPILOG_BEGINS*/\n\ - .section .fini\n\ - mov r14,r15\n\ - lds.l @r15+,pr\n\ - mov.l @r15+,r14\n\ - rts \n\ - mov.l @r15+,r12\n\ -\n\ - END_FINI\n\ - \n\ -/*@_fini_EPILOG_ENDS*/\n\ -\n\ -/*@TRAILER_BEGINS*/\n\ -"); diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sh/smp.h b/linuxthreads/sysdeps/unix/sysv/linux/sh/smp.h deleted file mode 100644 index 2c0cbe99ac..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sh/smp.h +++ /dev/null @@ -1,24 +0,0 @@ -/* Determine whether the host has multiple processors. SH version. - Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -static inline int -is_smp_system (void) -{ - return 0; -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h deleted file mode 100644 index 03c6fedbfe..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h +++ /dev/null @@ -1,227 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#include <tls.h> -#include <pt-machine.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# define _IMM12 #-12 -# define _IMM16 #-16 -# define _IMP16 #16 -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (name); \ - SINGLE_THREAD_P; \ - bf .Lpseudo_cancel; \ - DO_CALL (syscall_name, args); \ - mov r0,r1; \ - mov _IMM12,r2; \ - shad r2,r1; \ - not r1,r1; \ - tst r1,r1; \ - bt .Lsyscall_error; \ - bra .Lpseudo_end; \ - nop; \ - .Lpseudo_cancel: \ - sts.l pr,@-r15; \ - add _IMM16,r15; \ - SAVE_ARGS_##args; \ - CENABLE; \ - LOAD_ARGS_##args; \ - add _IMP16,r15; \ - lds.l @r15+,pr; \ - DO_CALL(syscall_name, args); \ - SYSCALL_INST_PAD; \ - sts.l pr,@-r15; \ - mov.l r0,@-r15; \ - CDISABLE; \ - mov.l @r15+,r0; \ - lds.l @r15+,pr; \ - mov r0,r1; \ - mov _IMM12,r2; \ - shad r2,r1; \ - not r1,r1; \ - tst r1,r1; \ - bf .Lpseudo_end; \ - .Lsyscall_error: \ - SYSCALL_ERROR_HANDLER; \ - .Lpseudo_end: - -# undef PSEUDO_END -# define PSEUDO_END(sym) \ - END (sym) - -# define SAVE_ARGS_0 /* Nothing. */ -# define SAVE_ARGS_1 SAVE_ARGS_0; mov.l r4,@(0,r15) -# define SAVE_ARGS_2 SAVE_ARGS_1; mov.l r5,@(4,r15) -# define SAVE_ARGS_3 SAVE_ARGS_2; mov.l r6,@(8,r15) -# define SAVE_ARGS_4 SAVE_ARGS_3; mov.l r7,@(12,r15) -# define SAVE_ARGS_5 SAVE_ARGS_4 -# define SAVE_ARGS_6 SAVE_ARGS_5 - -# define LOAD_ARGS_0 /* Nothing. */ -# define LOAD_ARGS_1 LOAD_ARGS_0; mov.l @(0,r15),r4 -# define LOAD_ARGS_2 LOAD_ARGS_1; mov.l @(4,r15),r5 -# define LOAD_ARGS_3 LOAD_ARGS_2; mov.l @(8,r15),r6 -# define LOAD_ARGS_4 LOAD_ARGS_3; mov.l @(12,r15),r7 -# define LOAD_ARGS_5 LOAD_ARGS_4 -# define LOAD_ARGS_6 LOAD_ARGS_5 - -# ifdef IS_IN_libpthread -# define __local_enable_asynccancel __pthread_enable_asynccancel -# define __local_disable_asynccancel __pthread_disable_asynccancel -# define __local_multiple_threads __pthread_multiple_threads -# elif !defined NOT_IN_libc -# define __local_enable_asynccancel __libc_enable_asynccancel -# define __local_disable_asynccancel __libc_disable_asynccancel -# define __local_multiple_threads __libc_multiple_threads -# else -# define __local_enable_asynccancel __librt_enable_asynccancel -# define __local_disable_asynccancel __librt_disable_asynccancel -# define __local_multiple_threads __librt_multiple_threads -# endif - -# if defined IS_IN_librt && defined PIC -# define CENABLE \ - mov.l r12,@-r15; \ - mov.l 1f,r12; \ - mova 1f,r0; \ - add r0,r12; \ - mov.l 2f,r0; \ - bsrf r0; \ - nop; \ - 0: bra 3f; \ - mov r0,r2; \ - .align 2; \ - 1: .long _GLOBAL_OFFSET_TABLE_; \ - 2: .long __local_enable_asynccancel@PLT - (0b-.); \ - 3: mov.l @r15+,r12 - -# define CDISABLE \ - mov.l r12,@-r15; \ - mov.l 1f,r12; \ - mova 1f,r0; \ - add r0,r12; \ - mov.l 2f,r0; \ - bsrf r0; \ - mov r2,r4; \ - 0: bra 3f; \ - nop; \ - .align 2; \ - 1: .long _GLOBAL_OFFSET_TABLE_; \ - 2: .long __local_disable_asynccancel@PLT - (0b-.); \ - 3: mov.l @r15+,r12 -# else -# define CENABLE \ - mov.l 1f,r0; \ - bsrf r0; \ - nop; \ - 0: bra 2f; \ - mov r0,r2; \ - .align 2; \ - 1: .long __local_enable_asynccancel - 0b; \ - 2: - -# define CDISABLE \ - mov.l 1f,r0; \ - bsrf r0; \ - mov r2,r4; \ - 0: bra 2f; \ - nop; \ - .align 2; \ - 1: .long __local_disable_asynccancel - 0b; \ - 2: -# endif - -# ifndef __ASSEMBLER__ -# if defined FLOATING_STACKS && USE___THREAD && defined PIC -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, p_multiple_threads) == 0, 1) -# else -extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# endif -# else -# if !defined PIC -# define SINGLE_THREAD_P \ - mov.l 1f,r0; \ - mov.l @r0,r0; \ - bra 2f; \ - tst r0,r0; \ - .align 2; \ - 1: .long __local_multiple_threads; \ - 2: -# elif defined FLOATING_STACKS && USE___THREAD -# define SINGLE_THREAD_P \ - stc gbr,r0; \ - mov.w 0f,r1; \ - sub r1,r0; \ - mov.l @(MULTIPLE_THREADS_OFFSET,r0),r0; \ - bra 1f; \ - tst r0,r0; \ - 0: .word TLS_PRE_TCB_SIZE; \ - 1: - -# else -# if !defined NOT_IN_libc || defined IS_IN_libpthread -# define SINGLE_THREAD_P \ - mov r12,r2; \ - mov.l 0f,r12; \ - mova 0f,r0; \ - add r0,r12; \ - mov.l 1f,r0; \ - mov.l @(r0,r12),r0; \ - mov r2,r12; \ - bra 2f; \ - tst r0,r0; \ - .align 2; \ - 0: .long _GLOBAL_OFFSET_TABLE_; \ - 1: .long __local_multiple_threads@GOTOFF; \ - 2: -# else -# define SINGLE_THREAD_P \ - mov r12,r2; \ - mov.l 0f,r12; \ - mova 0f,r0; \ - add r0,r12; \ - mov.l 1f,r0; \ - mov.l @(r0,r12),r0; \ - mov.l @r0,r0; \ - mov r2,r12; \ - bra 2f; \ - tst r0,r0; \ - .align 2; \ - 0: .long _GLOBAL_OFFSET_TABLE_; \ - 1: .long __local_multiple_threads@GOT; \ - 2: -# endif -# endif -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sh/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/sh/vfork.S deleted file mode 100644 index f230c01226..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sh/vfork.S +++ /dev/null @@ -1,77 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) -#ifdef SHARED - mov.l .Lgot, r1 - mova .Lgot, r0 - add r0, r1 - mov.l .Lpthread_func, r0 - mov.l @(r0,r1), r0 -#else - mov.l .Lpthread_create, r0 -#endif - tst r0, r0 - bf .Lhidden_fork - - mov.w .L1, r3 - trapa #0x10 - mov r0, r1 - mov #-12, r2 - shad r2, r1 - not r1, r1 // r1=0 means r0 = -1 to -4095 - tst r1, r1 // i.e. error in linux - bf .Lpseudo_end - SYSCALL_ERROR_HANDLER -.Lpseudo_end: - rts - nop -.L1: .word __NR_vfork - .align 2 -#ifdef SHARED -.Lgot: - .long _GLOBAL_OFFSET_TABLE_ -.Lpthread_func: - .long __libc_pthread_functions@GOTOFF -#else -.Lpthread_create: - .weak pthread_create - .long pthread_create -#endif - -.Lhidden_fork: - mov.l .L2, r1 - braf r1 - nop -1: - .align 2 -.L2: .long HIDDEN_JUMPTARGET(__fork)-1b - -PSEUDO_END (__vfork) -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sigwait.c b/linuxthreads/sysdeps/unix/sysv/linux/sigwait.c deleted file mode 100644 index fdec09455a..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sigwait.c +++ /dev/null @@ -1,88 +0,0 @@ -/* Copyright (C) 1997, 1998, 2000, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <signal.h> -#define __need_NULL -#include <stddef.h> - -#include <sysdep-cancel.h> -#include <sys/syscall.h> -#include <bp-checks.h> -#include <bits/libc-lock.h> - -extern int __syscall_rt_sigtimedwait (const sigset_t *__unbounded, siginfo_t *__unbounded, - const struct timespec *__unbounded, size_t); - - -/* Return any pending signal or wait for one for the given time. */ -static inline int -do_sigwait (const sigset_t *set, int *sig) -{ - int ret; - - /* XXX The size argument hopefully will have to be changed to the - real size of the user-level sigset_t. */ -#ifdef INTERNAL_SYSCALL - INTERNAL_SYSCALL_DECL (err); - ret = INTERNAL_SYSCALL (rt_sigtimedwait, err, 4, CHECK_SIGSET (set), - NULL, NULL, _NSIG / 8); - if (! INTERNAL_SYSCALL_ERROR_P (ret, err)) - { - *sig = ret; - ret = 0; - } - else - ret = INTERNAL_SYSCALL_ERRNO (ret, err); -#else - ret = INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set), - NULL, NULL, _NSIG / 8); - if (ret != -1) - { - *sig = ret; - ret = 0; - } - else - ret = errno; -#endif - - return ret; -} - -#ifndef SHARED -weak_extern (__pthread_sigwait) -#endif - -int -__sigwait (set, sig) - const sigset_t *set; - int *sig; -{ -#ifndef NOT_IN_libc - return __libc_maybe_call2 (pthread_sigwait, (set, sig), - do_sigwait (set, sig)); -#else - return do_sigwait (set, sig); -#endif -} -libc_hidden_def (__sigwait) -weak_alias (__sigwait, sigwait) -strong_alias (__sigwait, __libc_sigwait) - -/* Cancellation is handled in __pthread_sigwait. */ -LIBC_CANCEL_HANDLED (); diff --git a/linuxthreads/sysdeps/unix/sysv/linux/smp.h b/linuxthreads/sysdeps/unix/sysv/linux/smp.h deleted file mode 100644 index 81289294b4..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/smp.h +++ /dev/null @@ -1,48 +0,0 @@ -/* Determine whether the host has multiple processors. Linux version. - Copyright (C) 1996, 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <sys/sysctl.h> - -/* Test whether the machine has more than one processor. This is not the - best test but good enough. More complicated tests would require `malloc' - which is not available at that time. */ -static inline int -is_smp_system (void) -{ - static const int sysctl_args[] = { CTL_KERN, KERN_VERSION }; - char buf[512]; - size_t reslen = sizeof (buf); - - /* Try reading the number using `sysctl' first. */ - if (__sysctl ((int *) sysctl_args, - sizeof (sysctl_args) / sizeof (sysctl_args[0]), - buf, &reslen, NULL, 0) < 0) - { - /* This was not successful. Now try reading the /proc filesystem. */ - int fd = __open ("/proc/sys/kernel/version", O_RDONLY); - if (__builtin_expect (fd, 0) == -1 - || (reslen = __read (fd, buf, sizeof (buf))) <= 0) - /* This also didn't work. We give up and say it's a UP machine. */ - buf[0] = '\0'; - - __close (fd); - } - - return strstr (buf, "SMP") != NULL; -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/Versions b/linuxthreads/sysdeps/unix/sysv/linux/sparc/Versions deleted file mode 100644 index d102772482..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/Versions +++ /dev/null @@ -1,6 +0,0 @@ -libpthread { - GLIBC_2.3.3 { - # Changed PTHREAD_STACK_MIN. - pthread_attr_setstack; pthread_attr_setstacksize; - } -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/aio_cancel.c b/linuxthreads/sysdeps/unix/sysv/linux/sparc/aio_cancel.c deleted file mode 100644 index 0d6da82919..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/aio_cancel.c +++ /dev/null @@ -1,33 +0,0 @@ -#include <shlib-compat.h> - -#define aio_cancel64 XXX -#include <aio.h> -#undef aio_cancel64 -#include <errno.h> - -extern __typeof (aio_cancel) __new_aio_cancel; -extern __typeof (aio_cancel) __old_aio_cancel; - -#define aio_cancel __new_aio_cancel - -#include <sysdeps/pthread/aio_cancel.c> - -#undef aio_cancel -strong_alias (__new_aio_cancel, __new_aio_cancel64); -versioned_symbol (librt, __new_aio_cancel, aio_cancel, GLIBC_2_3); -versioned_symbol (librt, __new_aio_cancel64, aio_cancel64, GLIBC_2_3); - -#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_3) - -#undef ECANCELED -#define aio_cancel __old_aio_cancel -#define ECANCELED 125 - -#include <sysdeps/pthread/aio_cancel.c> - -#undef aio_cancel -strong_alias (__old_aio_cancel, __old_aio_cancel64); -compat_symbol (librt, __old_aio_cancel, aio_cancel, GLIBC_2_1); -compat_symbol (librt, __old_aio_cancel64, aio_cancel64, GLIBC_2_1); - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h b/linuxthreads/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h deleted file mode 100644 index 27ffa668f4..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h +++ /dev/null @@ -1,92 +0,0 @@ -/* Minimum guaranteed maximum values for system limits. Linux/SPARC version. - Copyright (C) 1993-1998,2000,2002,2003,2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* The kernel header pollutes the namespace with the NR_OPEN symbol - and defines LINK_MAX although filesystems have different maxima. A - similar thing is true for OPEN_MAX: the limit can be changed at - runtime and therefore the macro must not be defined. Remove this - after including the header if necessary. */ -#ifndef NR_OPEN -# define __undef_NR_OPEN -#endif -#ifndef LINK_MAX -# define __undef_LINK_MAX -#endif -#ifndef OPEN_MAX -# define __undef_OPEN_MAX -#endif - -/* The kernel sources contain a file with all the needed information. */ -#include <linux/limits.h> - -/* Have to remove NR_OPEN? */ -#ifdef __undef_NR_OPEN -# undef NR_OPEN -# undef __undef_NR_OPEN -#endif -/* Have to remove LINK_MAX? */ -#ifdef __undef_LINK_MAX -# undef LINK_MAX -# undef __undef_LINK_MAX -#endif -/* Have to remove OPEN_MAX? */ -#ifdef __undef_OPEN_MAX -# undef OPEN_MAX -# undef __undef_OPEN_MAX -#endif - -/* The number of data keys per process. */ -#define _POSIX_THREAD_KEYS_MAX 128 -/* This is the value this implementation supports. */ -#define PTHREAD_KEYS_MAX 1024 - -/* Controlling the iterations of destructors for thread-specific data. */ -#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 -/* Number of iterations this implementation does. */ -#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS - -/* The number of threads per process. */ -#define _POSIX_THREAD_THREADS_MAX 64 -/* This is the value this implementation supports. */ -#define PTHREAD_THREADS_MAX 16384 - -/* Maximum amount by which a process can descrease its asynchronous I/O - priority level. */ -#define AIO_PRIO_DELTA_MAX 20 - -/* Minimum size for a thread. We are free to choose a reasonable value. */ -#define PTHREAD_STACK_MIN 24576 - -/* Maximum number of POSIX timers available. */ -#define TIMER_MAX 256 - -/* Maximum number of timer expiration overruns. */ -#define DELAYTIMER_MAX 2147483647 - -/* Maximum tty name length. */ -#define TTY_NAME_MAX 32 - -/* Maximum login name length. This is arbitrary. */ -#define LOGIN_NAME_MAX 256 - -/* Maximum host name length. */ -#define HOST_NAME_MAX 64 - -/* Maximum message queue priority level. */ -#define MQ_PRIO_MAX 32768 diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/bits/typesizes.h b/linuxthreads/sysdeps/unix/sysv/linux/sparc/bits/typesizes.h deleted file mode 100644 index 7e4253789c..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/bits/typesizes.h +++ /dev/null @@ -1,66 +0,0 @@ -/* bits/typesizes.h -- underlying types for *_t. Linux/SPARC version. - Copyright (C) 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _BITS_TYPES_H -# error "Never include <bits/typesizes.h> directly; use <sys/types.h> instead." -#endif - -#ifndef _BITS_TYPESIZES_H -#define _BITS_TYPESIZES_H 1 - -/* See <bits/types.h> for the meaning of these macros. This file exists so - that <bits/types.h> need not vary across different GNU platforms. */ - -#define __DEV_T_TYPE __UQUAD_TYPE -#define __UID_T_TYPE __U32_TYPE -#define __GID_T_TYPE __U32_TYPE -#define __INO_T_TYPE __ULONGWORD_TYPE -#define __INO64_T_TYPE __UQUAD_TYPE -#define __MODE_T_TYPE __U32_TYPE -#define __NLINK_T_TYPE __U32_TYPE -#define __OFF_T_TYPE __SLONGWORD_TYPE -#define __OFF64_T_TYPE __SQUAD_TYPE -#define __PID_T_TYPE __S32_TYPE -#define __RLIM_T_TYPE __ULONGWORD_TYPE -#define __RLIM64_T_TYPE __UQUAD_TYPE -#define __BLKCNT_T_TYPE __SLONGWORD_TYPE -#define __BLKCNT64_T_TYPE __SQUAD_TYPE -#define __FSBLKCNT_T_TYPE __ULONGWORD_TYPE -#define __FSBLKCNT64_T_TYPE __UQUAD_TYPE -#define __FSFILCNT_T_TYPE __ULONGWORD_TYPE -#define __FSFILCNT64_T_TYPE __UQUAD_TYPE -#define __ID_T_TYPE __U32_TYPE -#define __CLOCK_T_TYPE __SLONGWORD_TYPE -#define __TIME_T_TYPE __SLONGWORD_TYPE -#define __USECONDS_T_TYPE __U32_TYPE -#define __SUSECONDS_T_TYPE __S32_TYPE -#define __DADDR_T_TYPE __S32_TYPE -#define __SWBLK_T_TYPE __SLONGWORD_TYPE -#define __KEY_T_TYPE __S32_TYPE -#define __CLOCKID_T_TYPE __S32_TYPE -#define __TIMER_T_TYPE __S32_TYPE -#define __BLKSIZE_T_TYPE __SLONGWORD_TYPE -#define __FSID_T_TYPE struct { int __val[2]; } -#define __SSIZE_T_TYPE __SWORD_TYPE - -/* Number of descriptors that can fit in an `fd_set'. */ -#define __FD_SETSIZE 1024 - - -#endif /* bits/typesizes.h */ diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/fork.h b/linuxthreads/sysdeps/unix/sysv/linux/sparc/fork.h deleted file mode 100644 index 793cb1d5f9..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/fork.h +++ /dev/null @@ -1,34 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> - -#define ARCH_FORK() \ -({ \ - register long __o0 __asm__ ("o0"); \ - register long __o1 __asm__ ("o1"); \ - register long __g1 __asm__ ("g1") = __NR_fork; \ - __asm __volatile (__SYSCALL_STRING \ - : "=r" (__g1), "=r" (__o0), "=r" (__o1) \ - : "0" (__g1) \ - : __SYSCALL_CLOBBERS); \ - __o0 == -1 ? __o0 : (__o0 & (__o1 - 1)); \ -}) - -#include_next <fork.h> diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h deleted file mode 100644 index dd3f52a989..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h +++ /dev/null @@ -1,102 +0,0 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -ENTRY(name) \ - ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1; \ - cmp %g1, 0; \ - bne 1f; \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x10; \ - bcs __syscall_error_handler; \ - nop; \ - .subsection 2; \ -1: save %sp, -96, %sp; \ - CENABLE; \ - nop; \ - mov %o0, %l0; \ - COPY_ARGS_##args \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x10; \ - bcs __syscall_error_handler2; \ - mov %o0, %l1; \ - CDISABLE; \ - mov %l0, %o0; \ - jmpl %i7 + 8, %g0; \ - restore %g0, %l1, %o0; \ - .previous; \ - SYSCALL_ERROR_HANDLER \ - SYSCALL_ERROR_HANDLER2 - -#define SYSCALL_ERROR_HANDLER2 \ -SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler2) \ - .global __errno_location; \ - .type __errno_location,@function; \ - CDISABLE; \ - mov %l0, %o0; \ - call __errno_location; \ - nop; \ - st %l1, [%o0]; \ - jmpl %i7 + 8, %g0; \ - restore %g0, -1, %o0; \ - .previous; - -# ifdef IS_IN_libpthread -# define CENABLE call __pthread_enable_asynccancel -# define CDISABLE call __pthread_disable_asynccancel -# elif !defined NOT_IN_libc -# define CENABLE call __libc_enable_asynccancel -# define CDISABLE call __libc_disable_asynccancel -# else -# define CENABLE call __librt_enable_asynccancel -# define CDISABLE call __librt_disable_asynccancel -# endif - -#define COPY_ARGS_0 /* Nothing */ -#define COPY_ARGS_1 COPY_ARGS_0 mov %i0, %o0; -#define COPY_ARGS_2 COPY_ARGS_1 mov %i1, %o1; -#define COPY_ARGS_3 COPY_ARGS_2 mov %i2, %o2; -#define COPY_ARGS_4 COPY_ARGS_3 mov %i3, %o3; -#define COPY_ARGS_5 COPY_ARGS_4 mov %i4, %o4; -#define COPY_ARGS_6 COPY_ARGS_5 mov %i5, %o5; - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - p_header.data.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1 -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S deleted file mode 100644 index 132da67a14..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S +++ /dev/null @@ -1,65 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep-cancel.h> - - .text -#ifdef SHARED -.LLGETPC0: - retl - add %o7, %o0, %o0 -#endif -ENTRY(__vfork) -#ifdef SHARED - mov %o7, %o1 - sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %o0 - call .LLGETPC0 - add %o0, %lo(_GLOBAL_OFFSET_TABLE_+4), %o0 - sethi %hi(__libc_pthread_functions), %o2 - mov %o1, %o7 - or %o2, %lo(__libc_pthread_functions), %o2 - ld [%o0 + %o2], %o2 - ld [%o2], %o2 - cmp %o2, 0 -#else - .weak pthread_create - sethi %hi(pthread_create), %o0 - orcc %o0, %lo(pthread_create), %o0 -#endif -#if defined SHARED && !defined BROKEN_SPARC_WDISP22 - bne HIDDEN_JUMPTARGET(__fork) -#else - bne 1f -#endif - mov __NR_vfork, %g1 - ta 0x10 - bcs __syscall_error_handler - nop - sub %o1, 1, %o1 - retl - and %o0, %o1, %o0 -#if !defined SHARED || defined BROKEN_SPARC_WDISP22 -1: mov %o7, %g1 - call HIDDEN_JUMPTARGET(__fork) - mov %g1, %o7 -#endif - SYSCALL_ERROR_HANDLER -PSEUDO_END (__vfork) -libc_hidden_def (__vfork) -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/Makefile b/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/Makefile deleted file mode 100644 index 90203051ae..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# glibc makefile fragment for linuxthreads on sparc/sparc64. - -ifeq ($(subdir),linuxthreads) -libpthread-routines += ptw-sigprocmask -endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/pt-sigsuspend.c b/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/pt-sigsuspend.c deleted file mode 100644 index d57283ad23..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/pt-sigsuspend.c +++ /dev/null @@ -1 +0,0 @@ -#include "../../ia64/pt-sigsuspend.c" diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h deleted file mode 100644 index 80834292e5..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h +++ /dev/null @@ -1,101 +0,0 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -ENTRY(name) \ - ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1; \ - brnz,pn %g1, 1f; \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x6d; \ - bcs,pn %xcc, __syscall_error_handler; \ - nop; \ - .subsection 2; \ -1: save %sp, -192, %sp; \ - CENABLE; \ - nop; \ - mov %o0, %l0; \ - COPY_ARGS_##args \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x6d; \ - bcs,pn %xcc, __syscall_error_handler2; \ - mov %o0, %l1; \ - CDISABLE; \ - mov %l0, %o0; \ - jmpl %i7 + 8, %g0; \ - restore %g0, %l1, %o0; \ - .previous; \ - SYSCALL_ERROR_HANDLER \ - SYSCALL_ERROR_HANDLER2 - -#define SYSCALL_ERROR_HANDLER2 \ -SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler2) \ - .global __errno_location; \ - .type __errno_location,@function; \ - CDISABLE; \ - mov %l0, %o0; \ - call __errno_location; \ - nop; \ - st %l1, [%o0]; \ - jmpl %i7 + 8, %g0; \ - restore %g0, -1, %o0; \ - .previous; - -# ifdef IS_IN_libpthread -# define CENABLE call __pthread_enable_asynccancel -# define CDISABLE call __pthread_disable_asynccancel -# elif !defined NOT_IN_libc -# define CENABLE call __libc_enable_asynccancel -# define CDISABLE call __libc_disable_asynccancel -# else -# define CENABLE call __librt_enable_asynccancel -# define CDISABLE call __librt_disable_asynccancel -# endif - -#define COPY_ARGS_0 /* Nothing */ -#define COPY_ARGS_1 COPY_ARGS_0 mov %i0, %o0; -#define COPY_ARGS_2 COPY_ARGS_1 mov %i1, %o1; -#define COPY_ARGS_3 COPY_ARGS_2 mov %i2, %o2; -#define COPY_ARGS_4 COPY_ARGS_3 mov %i3, %o3; -#define COPY_ARGS_5 COPY_ARGS_4 mov %i4, %o4; -#define COPY_ARGS_6 COPY_ARGS_5 mov %i5, %o5; - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - p_header.data.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1 -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S deleted file mode 100644 index 8a6d2771e8..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S +++ /dev/null @@ -1,64 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep-cancel.h> - -#ifdef SHARED -.LLGETPC0: - retl - add %o7, %o0, %o0 -#endif -ENTRY(__vfork) -#ifdef SHARED - mov %o7, %o1 - sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %o0 - call .LLGETPC0 - add %o0, %lo(_GLOBAL_OFFSET_TABLE_+4), %o0 - sethi %hi(__libc_pthread_functions), %o2 - mov %o1, %o7 - or %o2, %lo(__libc_pthread_functions), %o2 - ldx [%o0 + %o2], %o2 - ldx [%o2], %o0 -#else - .weak pthread_create - sethi %hi(pthread_create), %o0 - or %o0, %lo(pthread_create), %o0 -#endif -#if defined SHARED && !defined BROKEN_SPARC_WDISP22 - cmp %o0, 0 - bne HIDDEN_JUMPTARGET(__fork) -#else - brnz,pn %o0, 1f -#endif - mov __NR_vfork, %g1 - ta 0x6d - bcs,pn %xcc, __syscall_error_handler - nop - sub %o1, 1, %o1 - retl - and %o0, %o1, %o0 -#if !defined SHARED || defined BROKEN_SPARC_WDISP22 -1: mov %o7, %g1 - call HIDDEN_JUMPTARGET(__fork) - mov %g1, %o7 -#endif - SYSCALL_ERROR_HANDLER -PSEUDO_END (__vfork) -libc_hidden_def (__vfork) -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/unregister-atfork.c b/linuxthreads/sysdeps/unix/sysv/linux/unregister-atfork.c deleted file mode 100644 index dad273fdf5..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/unregister-atfork.c +++ /dev/null @@ -1,49 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <stdlib.h> -#include "fork.h" - - -void -__unregister_atfork (dso_handle) - void *dso_handle; -{ - /* Get the lock to not conflict with running forks. */ - __libc_lock_lock (__fork_block.lock); - - list_t *runp; - list_t *prevp; - - list_for_each_prev_safe (runp, prevp, &__fork_block.prepare_list) - if (list_entry (runp, struct fork_handler, list)->dso_handle == dso_handle) - list_del (runp); - - list_for_each_prev_safe (runp, prevp, &__fork_block.parent_list) - if (list_entry (runp, struct fork_handler, list)->dso_handle == dso_handle) - list_del (runp); - - list_for_each_prev_safe (runp, prevp, &__fork_block.child_list) - if (list_entry (runp, struct fork_handler, list)->dso_handle == dso_handle) - list_del (runp); - - /* Release the lock. */ - __libc_lock_unlock (__fork_block.lock); -} diff --git a/linuxthreads/sysdeps/unix/sysv/linux/x86_64/Makefile b/linuxthreads/sysdeps/unix/sysv/linux/x86_64/Makefile deleted file mode 100644 index b5e5d5d480..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/x86_64/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -ifeq ($(subdir),linuxthreads) -CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions \ - -fno-asynchronous-unwind-tables $(fno-unit-at-a-time) -endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/x86_64/pt-sigsuspend.c b/linuxthreads/sysdeps/unix/sysv/linux/x86_64/pt-sigsuspend.c deleted file mode 100644 index 3a0c2afc0f..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/x86_64/pt-sigsuspend.c +++ /dev/null @@ -1 +0,0 @@ -#include "../ia64/pt-sigsuspend.c" diff --git a/linuxthreads/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h deleted file mode 100644 index e82e6dfdd8..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h +++ /dev/null @@ -1,132 +0,0 @@ -/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> -#include <tls.h> -#include <pt-machine.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (name) \ - SINGLE_THREAD_P; \ - jne L(pseudo_cancel); \ - DO_CALL (syscall_name, args); \ - cmpq $-4095, %rax; \ - jae SYSCALL_ERROR_LABEL; \ - ret; \ - L(pseudo_cancel): \ - /* Save registers that might get destroyed. */ \ - SAVESTK_##args \ - PUSHARGS_##args \ - CENABLE \ - /* Restore registers. */ \ - POPARGS_##args \ - /* The return value from CENABLE is argument for CDISABLE. */ \ - movq %rax, (%rsp); \ - movl $SYS_ify (syscall_name), %eax; \ - syscall; \ - movq (%rsp), %rdi; \ - /* Save %rax since it's the error code from the syscall. */ \ - movq %rax, 8(%rsp); \ - CDISABLE \ - movq 8(%rsp), %rax; \ - RESTSTK_##args \ - cmpq $-4095, %rax; \ - jae SYSCALL_ERROR_LABEL; \ - L(pseudo_end): - -# define PUSHARGS_0 /* Nothing. */ -# define PUSHARGS_1 PUSHARGS_0 movq %rdi, 8(%rsp); -# define PUSHARGS_2 PUSHARGS_1 movq %rsi, 16(%rsp); -# define PUSHARGS_3 PUSHARGS_2 movq %rdx, 24(%rsp); -# define PUSHARGS_4 PUSHARGS_3 movq %rcx, 32(%rsp); -# define PUSHARGS_5 PUSHARGS_4 movq %r8, 40(%rsp); -# define PUSHARGS_6 PUSHARGS_5 movq %r9, 48(%rsp); - -# define POPARGS_0 /* Nothing. */ -# define POPARGS_1 POPARGS_0 movq 8(%rsp), %rdi; -# define POPARGS_2 POPARGS_1 movq 16(%rsp), %rsi; -# define POPARGS_3 POPARGS_2 movq 24(%rsp), %rdx; -# define POPARGS_4 POPARGS_3 movq 32(%rsp), %r10; -# define POPARGS_5 POPARGS_4 movq 40(%rsp), %r8; -# define POPARGS_6 POPARGS_5 movq 48(%rsp), %r9; - -/* We always have to align the stack before calling a function. */ -# define SAVESTK_0 subq $24, %rsp;cfi_adjust_cfa_offset(24); -# define SAVESTK_1 SAVESTK_0 -# define SAVESTK_2 SAVESTK_1 -# define SAVESTK_3 subq $40, %rsp;cfi_adjust_cfa_offset(40); -# define SAVESTK_4 SAVESTK_3 -# define SAVESTK_5 subq $56, %rsp;cfi_adjust_cfa_offset(56); -# define SAVESTK_6 SAVESTK_5 - -# define RESTSTK_0 addq $24,%rsp;cfi_adjust_cfa_offset(-24); -# define RESTSTK_1 RESTSTK_0 -# define RESTSTK_2 RESTSTK_1 -# define RESTSTK_3 addq $40, %rsp;cfi_adjust_cfa_offset(-40); -# define RESTSTK_4 RESTSTK_3 -# define RESTSTK_5 addq $56, %rsp;cfi_adjust_cfa_offset(-56); -# define RESTSTK_6 RESTSTK_5 - -# ifdef IS_IN_libpthread -# define CENABLE call __pthread_enable_asynccancel; -# define CDISABLE call __pthread_disable_asynccancel; -# define __local_multiple_threads __pthread_multiple_threads -# elif !defined NOT_IN_libc -# define CENABLE call __libc_enable_asynccancel; -# define CDISABLE call __libc_disable_asynccancel; -# define __local_multiple_threads __libc_multiple_threads -# else -# define CENABLE call __librt_enable_asynccancel@plt; -# define CDISABLE call __librt_disable_asynccancel@plt; -# endif - -# if defined IS_IN_libpthread || !defined NOT_IN_libc -# ifndef __ASSEMBLER__ -extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P \ - __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P cmpl $0, __local_multiple_threads(%rip) -# endif - -# else - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - p_header.data.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P cmpl $0, %fs:MULTIPLE_THREADS_OFFSET -# endif - -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S deleted file mode 100644 index 25d1d3f96a..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S +++ /dev/null @@ -1,62 +0,0 @@ -/* Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - -#ifdef SHARED - cmpq $0, __libc_pthread_functions(%rip) -#else - .weak pthread_create - movq $pthread_create, %rax - testq %rax, %rax -#endif - jne HIDDEN_JUMPTARGET (__fork) - - /* Pop the return PC value into RDI. We need a register that - is preserved by the syscall and that we're allowed to destroy. */ - popq %rdi - cfi_adjust_cfa_offset(-8) - - /* Stuff the syscall number in RAX and enter into the kernel. */ - movl $SYS_ify (vfork), %eax - syscall - - /* Push back the return PC. */ - pushq %rdi - cfi_adjust_cfa_offset(8) - - cmpl $-4095, %eax - jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */ - - /* Normal return. */ -.Lpseudo_end: - ret - -PSEUDO_END (__vfork) -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/x86_64/Makefile b/linuxthreads/sysdeps/x86_64/Makefile deleted file mode 100644 index 81bddf688c..0000000000 --- a/linuxthreads/sysdeps/x86_64/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -ifeq ($(subdir),csu) -gen-as-const-headers += tcb-offsets.sym -endif diff --git a/linuxthreads/sysdeps/x86_64/Versions b/linuxthreads/sysdeps/x86_64/Versions deleted file mode 100644 index 32da57080d..0000000000 --- a/linuxthreads/sysdeps/x86_64/Versions +++ /dev/null @@ -1,5 +0,0 @@ -libpthread { - GLIBC_PRIVATE { - __pthread_clock_gettime; __pthread_clock_settime; - } -} diff --git a/linuxthreads/sysdeps/x86_64/pspinlock.c b/linuxthreads/sysdeps/x86_64/pspinlock.c deleted file mode 100644 index e1b2a66841..0000000000 --- a/linuxthreads/sysdeps/x86_64/pspinlock.c +++ /dev/null @@ -1,97 +0,0 @@ -/* POSIX spinlock implementation. x86-64 version. - Copyright (C) 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - -/* This implementation is similar to the one used in the Linux kernel. - But the kernel is byte instructions for the memory access. This is - faster but unusable here. The problem is that only 128 - threads/processes could use the spinlock at the same time. If (by - a design error in the program) a thread/process would hold the - spinlock for a time long enough to accumulate 128 waiting - processes, the next one will find a positive value in the spinlock - and assume it is unlocked. We cannot accept that. */ - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - asm volatile - ("\n" - "1:\n\t" - "lock; decl %0\n\t" - "js 2f\n\t" - ".section .text.spinlock,\"ax\"\n" - "2:\n\t" - "cmpl $0,%0\n\t" - "rep; nop\n\t" - "jle 2b\n\t" - "jmp 1b\n\t" - ".previous" - : "=m" (*lock)); - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - int oldval; - - asm volatile - ("xchgl %0,%1" - : "=r" (oldval), "=m" (*lock) - : "0" (0)); - return oldval > 0 ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - asm volatile - ("movl $1,%0" - : "=m" (*lock)); - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 1; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/x86_64/pt-machine.h b/linuxthreads/sysdeps/x86_64/pt-machine.h deleted file mode 100644 index df187a7c03..0000000000 --- a/linuxthreads/sysdeps/x86_64/pt-machine.h +++ /dev/null @@ -1,225 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - x86-64 version. - Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef __ASSEMBLER__ -# include <stddef.h> /* For offsetof. */ -# include <stdlib.h> /* For abort(). */ -# include <asm/prctl.h> - - -# ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -# endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -# define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("%rsp") __attribute_used__; - - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - long int ret; - - __asm__ __volatile__ ( - "xchgl %k0, %1" - : "=r"(ret), "=m"(*spinlock) - : "0"(1), "m"(*spinlock) - : "memory"); - - return ret; -} - - -/* Compare-and-swap for semaphores. */ -# define HAS_COMPARE_AND_SWAP - -PT_EI int -__compare_and_swap (long int *p, long int oldval, long int newval) -{ - char ret; - long int readval; - - __asm__ __volatile__ ("lock; cmpxchgq %3, %1; sete %0" - : "=q" (ret), "=m" (*p), "=a" (readval) - : "r" (newval), "m" (*p), "a" (oldval) - : "memory"); - return ret; -} - -/* Return the thread descriptor for the current thread. - - The contained asm must *not* be marked volatile since otherwise - assignments like - pthread_descr self = thread_self(); - do not get optimized away. */ -# define THREAD_SELF \ -({ \ - register pthread_descr __self; \ - __asm__ ("movq %%fs:%c1,%0" : "=r" (__self) \ - : "i" (offsetof (struct _pthread_descr_struct, \ - p_header.data.self))); \ - __self; \ -}) - -/* Prototype for the system call. */ -extern int __arch_prctl (int __code, unsigned long __addr); - -/* Initialize the thread-unique value. */ -# define INIT_THREAD_SELF(descr, nr) \ -{ \ - if (__arch_prctl (ARCH_SET_FS, (unsigned long)descr) != 0) \ - abort (); \ -} - -/* Read member of the thread descriptor directly. */ -# define THREAD_GETMEM(descr, member) \ -({ \ - __typeof__ (descr->member) __value; \ - if (sizeof (__value) == 1) \ - __asm__ __volatile__ ("movb %%fs:%P2,%b0" \ - : "=q" (__value) \ - : "0" (0), \ - "i" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else if (sizeof (__value) == 4) \ - __asm__ __volatile__ ("movl %%fs:%P2,%k0" \ - : "=r" (__value) \ - : "0" (0), \ - "i" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else \ - { \ - if (sizeof (__value) != 8) \ - /* There should not be any value with a size other than 1, 4 or 8. */\ - abort (); \ - \ - __asm__ __volatile__ ("movq %%fs:%P1,%0" \ - : "=r" (__value) \ - : "i" (offsetof (struct _pthread_descr_struct, \ - member))); \ - } \ - __value; \ -}) - -/* Same as THREAD_GETMEM, but the member offset can be non-constant. */ -# define THREAD_GETMEM_NC(descr, member) \ -({ \ - __typeof__ (descr->member) __value; \ - if (sizeof (__value) == 1) \ - __asm__ __volatile__ ("movb %%fs:(%2),%b0" \ - : "=q" (__value) \ - : "0" (0), \ - "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else if (sizeof (__value) == 4) \ - __asm__ __volatile__ ("movl %%fs:(%2),%k0" \ - : "=r" (__value) \ - : "0" (0), \ - "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else \ - { \ - if (sizeof (__value) != 8) \ - /* There should not be any value with a size other than 1, 4 or 8. */\ - abort (); \ - \ - __asm__ __volatile__ ("movq %%fs:(%1),%0" \ - : "=r" (__value) \ - : "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - } \ - __value; \ -}) - -/* Set member of the thread descriptor directly. */ -# define THREAD_SETMEM(descr, member, value) \ -({ \ - __typeof__ (descr->member) __value = (value); \ - if (sizeof (__value) == 1) \ - __asm__ __volatile__ ("movb %0,%%fs:%P1" : \ - : "q" (__value), \ - "i" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else if (sizeof (__value) == 4) \ - __asm__ __volatile__ ("movl %k0,%%fs:%P1" : \ - : "r" (__value), \ - "i" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else \ - { \ - if (sizeof (__value) != 8) \ - /* There should not be any value with a size other than 1, 4 or 8. */\ - abort (); \ - \ - __asm__ __volatile__ ("movq %0,%%fs:%P1" : \ - : "r" (__value), \ - "i" (offsetof (struct _pthread_descr_struct, \ - member))); \ - } \ -}) - -/* Same as THREAD_SETMEM, but the member offset can be non-constant. */ -# define THREAD_SETMEM_NC(descr, member, value) \ -({ \ - __typeof__ (descr->member) __value = (value); \ - if (sizeof (__value) == 1) \ - __asm__ __volatile__ ("movb %0,%%fs:(%1)" : \ - : "q" (__value), \ - "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else if (sizeof (__value) == 4) \ - __asm__ __volatile__ ("movl %k0,%%fs:(%1)" : \ - : "r" (__value), \ - "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - else \ - { \ - if (sizeof (__value) != 8) \ - /* There should not be any value with a size other than 1, 4 or 8. */\ - abort (); \ - \ - __asm__ __volatile__ ("movq %0,%%fs:(%1)" : \ - : "r" (__value), \ - "r" (offsetof (struct _pthread_descr_struct, \ - member))); \ - } \ -}) - -#endif /* !__ASSEMBLER__ */ - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 32*1024*1024 - -/* The ia32e really want some help to prevent overheating. */ -#define BUSY_WAIT_NOP __asm__ ("rep; nop") - -#endif /* pt-machine.h */ diff --git a/linuxthreads/sysdeps/x86_64/tcb-offsets.sym b/linuxthreads/sysdeps/x86_64/tcb-offsets.sym deleted file mode 100644 index aee6be2570..0000000000 --- a/linuxthreads/sysdeps/x86_64/tcb-offsets.sym +++ /dev/null @@ -1,4 +0,0 @@ -#include <sysdep.h> -#include <tls.h> - -MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads) diff --git a/linuxthreads/sysdeps/x86_64/tls.h b/linuxthreads/sysdeps/x86_64/tls.h deleted file mode 100644 index d67275c10c..0000000000 --- a/linuxthreads/sysdeps/x86_64/tls.h +++ /dev/null @@ -1,134 +0,0 @@ -/* Definitions for thread-local data handling. linuxthreads/x86-64 version. - Copyright (C) 2002, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _TLS_H -#define _TLS_H - -#ifndef __ASSEMBLER__ - -# include <pt-machine.h> -# include <stdbool.h> -# include <stddef.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - struct - { - void *val; - bool is_static; - } pointer; -} dtv_t; - - -typedef struct -{ - void *tcb; /* Pointer to the TCB. Not necessary the - thread descriptor used by libpthread. */ - dtv_t *dtv; - void *self; /* Pointer to the thread descriptor. */ - int multiple_threads; -} tcbhead_t; - -#else /* __ASSEMBLER__ */ -# include <tcb-offsets.h> -#endif - - -#ifdef HAVE_TLS_SUPPORT - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -# ifndef __ASSEMBLER__ -/* Get system call information. */ -# include <sysdep.h> - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -/* This is the size of the initial TCB. */ -# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) - -/* This is the size of the TCB. */ -# define TLS_TCB_SIZE sizeof (struct _pthread_descr_struct) - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* The TCB can have any size and the memory following the address the - thread pointer points to is unspecified. Allocate the TCB there. */ -# define TLS_TCB_AT_TP 1 - - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(descr, dtvp) \ - ((tcbhead_t *) (descr))->dtv = (dtvp) + 1 - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(dtv) \ - ({ struct _pthread_descr_struct *__descr; \ - THREAD_SETMEM (__descr, p_header.data.dtvp, (dtv)); }) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(descr) \ - (((tcbhead_t *) (descr))->dtv) - -/* Code to initially initialize the thread pointer. This might need - special attention since 'errno' is not yet available and if the - operation can cause a failure 'errno' must not be touched. */ -# define TLS_INIT_TP(descr, secondcall) \ - ({ \ - void *_descr = (descr); \ - tcbhead_t *head = _descr; \ - long int _result; \ - \ - head->tcb = _descr; \ - /* For now the thread descriptor is at the same address. */ \ - head->self = _descr; \ - \ - asm volatile ("syscall" \ - : "=a" (_result) \ - : "0" ((unsigned long int) __NR_arch_prctl), \ - "D" ((unsigned long int) ARCH_SET_FS), \ - "S" (_descr) \ - : "memory", "cc", "r11", "cx"); \ - \ - _result ? "cannot set %fs base address for thread-local storage" : 0; \ - }) - -/* Indicate that dynamic linker shouldn't try to initialize TLS even - when no PT_TLS segments are found in the program and libraries - it is linked against. */ -# define TLS_INIT_TP_EXPENSIVE 1 - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - ({ struct _pthread_descr_struct *__descr; \ - THREAD_GETMEM (__descr, p_header.data.dtvp); }) - -# endif /* HAVE_TLS_SUPPORT */ -#endif /* __ASSEMBLER__ */ - -#endif /* tls.h */ diff --git a/linuxthreads/tst-_res1.c b/linuxthreads/tst-_res1.c deleted file mode 100644 index 651e3cc40d..0000000000 --- a/linuxthreads/tst-_res1.c +++ /dev/null @@ -1,69 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* Test whether _res in glibc 2.1.x and earlier (before __res_state() - was introduced) works. Portable programs should never do the - dirty things below. */ - -#include <pthread.h> -#include <resolv.h> -#include <stdlib.h> -#include <stdio.h> - -void *tf (void *resp) -{ - if (resp == &_res || resp == __res_state ()) - abort (); - _res.retry = 24; - return NULL; -} - -void do_test (struct __res_state *resp) -{ - if (resp != &_res || resp != __res_state ()) - abort (); - if (_res.retry != 12) - abort (); -} - -int main (void) -{ -#undef _res - extern struct __res_state _res; - pthread_t th; - - _res.retry = 12; - if (pthread_create (&th, NULL, tf, &_res) != 0) - { - puts ("create failed"); - exit (1); - } - - do_test (&_res); - - if (pthread_join (th, NULL) != 0) - { - puts ("join failed"); - exit (1); - } - - do_test (&_res); - - exit (0); -} diff --git a/linuxthreads/tst-_res1mod1.c b/linuxthreads/tst-_res1mod1.c deleted file mode 100644 index 73b190e6ba..0000000000 --- a/linuxthreads/tst-_res1mod1.c +++ /dev/null @@ -1,23 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <resolv.h> -#undef _res - -struct __res_state _res; diff --git a/linuxthreads/tst-_res1mod2.c b/linuxthreads/tst-_res1mod2.c deleted file mode 100644 index d2a3509c6d..0000000000 --- a/linuxthreads/tst-_res1mod2.c +++ /dev/null @@ -1 +0,0 @@ -/* Nothing. */ diff --git a/linuxthreads/tst-align.c b/linuxthreads/tst-align.c deleted file mode 100644 index 2de9d7a107..0000000000 --- a/linuxthreads/tst-align.c +++ /dev/null @@ -1,71 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <stdbool.h> -#include <stdint.h> -#include <stdio.h> -#include <tst-stack-align.h> - -static void * -tf (void *arg) -{ - bool ok = true; - - puts ("in thread"); - - if (TEST_STACK_ALIGN ()) - ok = false; - - return ok ? NULL : (void *) -1l; -} - -static int -do_test (void) -{ - bool ok = true; - - puts ("in main"); - - if (TEST_STACK_ALIGN ()) - ok = false; - - pthread_t th; - if (pthread_create (&th, NULL, tf, NULL) != 0) - { - puts ("create failed"); - return 1; - } - - void *res; - if (pthread_join (th, &res) != 0) - { - puts ("join failed"); - return 1; - } - - if (res != NULL) - ok = false; - - return ok ? 0 : 1; -} - - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-attr1.c b/linuxthreads/tst-attr1.c deleted file mode 100644 index 7960cf930a..0000000000 --- a/linuxthreads/tst-attr1.c +++ /dev/null @@ -1,358 +0,0 @@ -/* pthread_getattr_np test. - Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <error.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include <stackinfo.h> - -static void * -tf (void *arg) -{ - pthread_attr_t a, *ap, a2; - int err; - void *result = NULL; - - if (arg == NULL) - { - ap = &a2; - err = pthread_attr_init (ap); - if (err) - { - error (0, err, "pthread_attr_init failed"); - return tf; - } - } - else - ap = (pthread_attr_t *) arg; - - err = pthread_getattr_np (pthread_self (), &a); - if (err) - { - error (0, err, "pthread_getattr_np failed"); - result = tf; - } - - int detachstate1, detachstate2; - err = pthread_attr_getdetachstate (&a, &detachstate1); - if (err) - { - error (0, err, "pthread_attr_getdetachstate failed"); - result = tf; - } - else - { - err = pthread_attr_getdetachstate (ap, &detachstate2); - if (err) - { - error (0, err, "pthread_attr_getdetachstate failed"); - result = tf; - } - else if (detachstate1 != detachstate2) - { - error (0, 0, "detachstate differs %d != %d", - detachstate1, detachstate2); - result = tf; - } - } - - void *stackaddr; - size_t stacksize; - err = pthread_attr_getstack (&a, &stackaddr, &stacksize); - if (err) - { - error (0, err, "pthread_attr_getstack failed"); - result = tf; - } - else if ((void *) &a < stackaddr - || (void *) &a >= stackaddr + stacksize) - { - error (0, 0, "pthread_attr_getstack returned range does not cover thread's stack"); - result = tf; - } - else - printf ("thread stack %p-%p (0x%zx)\n", stackaddr, stackaddr + stacksize, - stacksize); - - size_t guardsize1, guardsize2; - err = pthread_attr_getguardsize (&a, &guardsize1); - if (err) - { - error (0, err, "pthread_attr_getguardsize failed"); - result = tf; - } - else - { - err = pthread_attr_getguardsize (ap, &guardsize2); - if (err) - { - error (0, err, "pthread_attr_getguardsize failed"); - result = tf; - } - else if (guardsize1 != guardsize2) - { - error (0, 0, "guardsize differs %zd != %zd", - guardsize1, guardsize2); - result = tf; - } - else - printf ("thread guardsize %zd\n", guardsize1); - } - - int scope1, scope2; - err = pthread_attr_getscope (&a, &scope1); - if (err) - { - error (0, err, "pthread_attr_getscope failed"); - result = tf; - } - else - { - err = pthread_attr_getscope (ap, &scope2); - if (err) - { - error (0, err, "pthread_attr_getscope failed"); - result = tf; - } - else if (scope1 != scope2) - { - error (0, 0, "scope differs %d != %d", - scope1, scope2); - result = tf; - } - } - - err = pthread_attr_destroy (&a); - if (err) - { - error (0, err, "pthread_attr_destroy failed"); - result = tf; - } - - if (ap == &a2) - { - err = pthread_attr_destroy (ap); - if (err) - { - error (0, err, "pthread_attr_destroy failed"); - result = tf; - } - } - - return result; -} - - -static int -do_test (void) -{ - int result = 0; - pthread_attr_t a; - - int err = pthread_attr_init (&a); - if (err) - { - error (0, err, "pthread_attr_init failed"); - result = 1; - } - - err = pthread_attr_destroy (&a); - if (err) - { - error (0, err, "pthread_attr_destroy failed"); - result = 1; - } - - err = pthread_getattr_np (pthread_self (), &a); - if (err) - { - error (0, err, "pthread_getattr_np failed"); - result = 1; - } - - int detachstate; - err = pthread_attr_getdetachstate (&a, &detachstate); - if (err) - { - error (0, err, "pthread_attr_getdetachstate failed"); - result = 1; - } - else if (detachstate != PTHREAD_CREATE_JOINABLE) - { - error (0, 0, "initial thread not joinable"); - result = 1; - } - - void *stackaddr; - size_t stacksize; - err = pthread_attr_getstack (&a, &stackaddr, &stacksize); - if (err) - { - error (0, err, "pthread_attr_getstack failed"); - result = 1; - } - else if ((void *) &a < stackaddr - || (void *) &a >= stackaddr + stacksize) - { - error (0, 0, "pthread_attr_getstack returned range does not cover main's stack"); - result = 1; - } - else - printf ("initial thread stack %p-%p (0x%zx)\n", stackaddr, - stackaddr + stacksize, stacksize); - - size_t guardsize; - err = pthread_attr_getguardsize (&a, &guardsize); - if (err) - { - error (0, err, "pthread_attr_getguardsize failed"); - result = 1; - } - else if (guardsize != 0) - { - error (0, 0, "pthread_attr_getguardsize returned %zd != 0", - guardsize); - result = 1; - } - - int scope; - err = pthread_attr_getscope (&a, &scope); - if (err) - { - error (0, err, "pthread_attr_getscope failed"); - result = 1; - } - else if (scope != PTHREAD_SCOPE_SYSTEM) - { - error (0, 0, "pthread_attr_getscope returned %d != PTHREAD_SCOPE_SYSTEM", - scope); - result = 1; - } - - int inheritsched; - err = pthread_attr_getinheritsched (&a, &inheritsched); - if (err) - { - error (0, err, "pthread_attr_getinheritsched failed"); - result = 1; - } - else if (inheritsched != PTHREAD_INHERIT_SCHED) - { - error (0, 0, "pthread_attr_getinheritsched returned %d != PTHREAD_INHERIT_SCHED", - inheritsched); - result = 1; - } - - err = pthread_attr_destroy (&a); - if (err) - { - error (0, err, "pthread_attr_destroy failed"); - result = 1; - } - - pthread_t th; - err = pthread_create (&th, NULL, tf, NULL); - if (err) - { - error (0, err, "pthread_create #1 failed"); - result = 1; - } - else - { - void *ret; - err = pthread_join (th, &ret); - if (err) - { - error (0, err, "pthread_join #1 failed"); - result = 1; - } - else if (ret != NULL) - result = 1; - } - - err = pthread_attr_init (&a); - if (err) - { - error (0, err, "pthread_attr_init failed"); - result = 1; - } - - err = pthread_create (&th, &a, tf, &a); - if (err) - { - error (0, err, "pthread_create #2 failed"); - result = 1; - } - else - { - void *ret; - err = pthread_join (th, &ret); - if (err) - { - error (0, err, "pthread_join #2 failed"); - result = 1; - } - else if (ret != NULL) - result = 1; - } - - err = pthread_attr_setguardsize (&a, 16 * sysconf (_SC_PAGESIZE)); - if (err) - { - error (0, err, "pthread_attr_setguardsize failed"); - result = 1; - } - - err = pthread_create (&th, &a, tf, &a); - if (err) - { - error (0, err, "pthread_create #3 failed"); - result = 1; - } - else - { - void *ret; - err = pthread_join (th, &ret); - if (err) - { - error (0, err, "pthread_join #3 failed"); - result = 1; - } - else if (ret != NULL) - result = 1; - } - - err = pthread_attr_destroy (&a); - if (err) - { - error (0, err, "pthread_attr_destroy failed"); - result = 1; - } - - return result; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-cancel-static.c b/linuxthreads/tst-cancel-static.c deleted file mode 100644 index 1c879eba8b..0000000000 --- a/linuxthreads/tst-cancel-static.c +++ /dev/null @@ -1 +0,0 @@ -#include "tst-cancel4.c" diff --git a/linuxthreads/tst-cancel-wrappers.sh b/linuxthreads/tst-cancel-wrappers.sh deleted file mode 100644 index d6f16d1ed2..0000000000 --- a/linuxthreads/tst-cancel-wrappers.sh +++ /dev/null @@ -1,92 +0,0 @@ -#! /bin/sh -# Test whether all cancelable functions are cancelable. -# Copyright (C) 2002, 2003 Free Software Foundation, Inc. -# This file is part of the GNU C Library. -# Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. - -# The GNU C Library is free software; you can redistribute it and/or -# modify it under the terms of the GNU Lesser General Public -# License as published by the Free Software Foundation; either -# version 2.1 of the License, or (at your option) any later version. - -# The GNU C Library is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# Lesser General Public License for more details. - -# You should have received a copy of the GNU Lesser General Public -# License along with the GNU C Library; if not, write to the Free -# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA -# 02111-1307 USA. - -while [ $# -gt 0 ]; do - ( nm -P $1; echo 'end[end]:' ) | gawk ' BEGIN { -C["accept"]=1 -C["close"]=1 -C["connect"]=1 -C["creat"]=1 -C["fcntl"]=1 -C["fsync"]=1 -C["msgrcv"]=1 -C["msgsnd"]=1 -C["msync"]=1 -C["nanosleep"]=1 -C["open"]=1 -C["open64"]=1 -C["pause"]=1 -C["poll"]=1 -C["pread"]=1 -C["pread64"]=1 -C["pselect"]=1 -C["pwrite"]=1 -C["pwrite64"]=1 -C["read"]=1 -C["readv"]=1 -C["recv"]=1 -C["recvfrom"]=1 -C["recvmsg"]=1 -C["select"]=1 -C["send"]=1 -C["sendmsg"]=1 -C["sendto"]=1 -C["sigpause"]=1 -C["sigsuspend"]=1 -C["sigwait"]=1 -C["sigwaitinfo"]=1 -C["system"]=1 -C["tcdrain"]=1 -C["wait"]=1 -C["waitid"]=1 -C["waitpid"]=1 -C["write"]=1 -C["writev"]=1 -C["__xpg_sigpause"]=1 -} -/:$/ { - if (seen) - { - if (!seen_enable || !seen_disable) - { - printf "in '$1'(%s) %s'\''s cancellation missing\n", object, seen - ret = 1 - } - } - seen="" - seen_enable="" - seen_disable="" - object=gensub(/^.*\[(.*)\]:$/,"\\1","",$0) - next -} -{ - if (C[$1] && $2 ~ /^[TW]$/) - seen=$1 - else if ($1 ~ /^([.]|)__(libc|pthread)_enable_asynccancel$/ && $2 == "U") - seen_enable=1 - else if ($1 ~ /^([.]|)__(libc|pthread)_disable_asynccancel$/ && $2 == "U") - seen_disable=1 -} -END { - exit ret -}' || exit - shift -done diff --git a/linuxthreads/tst-cancel.c b/linuxthreads/tst-cancel.c deleted file mode 100644 index 59c6f1f511..0000000000 --- a/linuxthreads/tst-cancel.c +++ /dev/null @@ -1,214 +0,0 @@ -/* Tests for cancelation handling. */ - -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <sys/stat.h> - -int fd; - -pthread_barrier_t bar; - - -#ifdef NOT_YET -static void -cleanup (void *arg) -{ - int nr = (int) (long int) arg; - char s[30]; - char *cp = stpcpy (s, "cleanup "); - *cp++ = '0' + nr; - *cp++ = '\n'; - __libc_lseek (fd, 0, SEEK_END); - __libc_write (fd, s, cp - s); -} - - -static void * -t1 (void *arg) -{ - pthread_cleanup_push (cleanup, (void *) (long int) 1); - return NULL; - pthread_cleanup_pop (0); -} - - -static void -inner (int a) -{ - pthread_cleanup_push (cleanup, (void *) (long int) a); - if (a) - return; - pthread_cleanup_pop (0); -} - - -static void * -t2 (void *arg) -{ - pthread_cleanup_push (cleanup, (void *) (long int) 2); - inner ((int) (long int) arg); - return NULL; - pthread_cleanup_pop (0); -} -#endif - -/* This does not work yet. */ -volatile int cleanupokcnt; - -static void -cleanupok (void *arg) -{ - ++cleanupokcnt; -} - -#ifdef NOT_YET -static void * -t3 (void *arg) -{ - pthread_cleanup_push (cleanupok, (void *) (long int) 4); - inner ((int) (long int) arg); - pthread_exit (NULL); - pthread_cleanup_pop (0); -} -#endif - -static void -innerok (int a) -{ - pthread_cleanup_push (cleanupok, (void *) (long int) a); - pthread_exit (NULL); - pthread_cleanup_pop (0); -} - - -static void * -t4 (void *arg) -{ - pthread_cleanup_push (cleanupok, (void *) (long int) 6); - innerok ((int) (long int) arg); - pthread_cleanup_pop (0); - return NULL; -} - - -int -main (int argc, char *argv[]) -{ - pthread_t td; - int err; - char *tmp; - const char *prefix; - const char template[] = "thtstXXXXXX"; - struct stat64 st; - int result = 0; - - prefix = argc > 1 ? argv[1] : ""; - tmp = (char *) alloca (strlen (prefix) + sizeof template); - strcpy (stpcpy (tmp, prefix), template); - - fd = mkstemp (tmp); - if (fd == -1) - { - printf ("cannot create temporary file: %m"); - exit (1); - } - unlink (tmp); - - err = pthread_barrier_init (&bar, NULL, 2); - if (err != 0 ) - { - printf ("cannot create barrier: %s\n", strerror (err)); - exit (1); - } - -#ifdef NOT_YET - err = pthread_create (&td, NULL, t1, NULL); - if (err != 0) - { - printf ("cannot create thread t1: %s\n", strerror (err)); - exit (1); - } - - err = pthread_join (td, NULL); - if (err != 0) - { - printf ("cannot join thread: %s\n", strerror (err)); - exit (1); - } - - err = pthread_create (&td, NULL, t2, (void *) 3); - if (err != 0) - { - printf ("cannot create thread t2: %s\n", strerror (err)); - exit (1); - } - - err = pthread_join (td, NULL); - if (err != 0) - { - printf ("cannot join thread: %s\n", strerror (err)); - exit (1); - } - - err = pthread_create (&td, NULL, t3, (void *) 5); - if (err != 0) - { - printf ("cannot create thread t3: %s\n", strerror (err)); - exit (1); - } - - err = pthread_join (td, NULL); - if (err != 0) - { - printf ("cannot join thread: %s\n", strerror (err)); - exit (1); - } -#endif - - err = pthread_create (&td, NULL, t4, (void *) 7); - if (err != 0) - { - printf ("cannot create thread t4: %s\n", strerror (err)); - exit (1); - } - - err = pthread_join (td, NULL); - if (err != 0) - { - printf ("cannot join thread: %s\n", strerror (err)); - exit (1); - } - - if (fstat64 (fd, &st) < 0) - { - printf ("cannot stat temporary file: %m\n"); - result = 1; - } - else if (st.st_size != 0) - { - char buf[512]; - puts ("some cleanup handlers ran:"); - fflush (stdout); - __lseek (fd, 0, SEEK_SET); - while (1) - { - ssize_t n = read (fd, buf, sizeof buf); - if (n <= 0) - break; - write (STDOUT_FILENO, buf, n); - } - result = 1; - } - - // if (cleanupokcnt != 3) will be three once t3 runs - if (cleanupokcnt != 2) - { - printf ("cleanupokcnt = %d\n", cleanupokcnt); - result = 1; - } - - return result; -} diff --git a/linuxthreads/tst-cancel1.c b/linuxthreads/tst-cancel1.c deleted file mode 100644 index 99a8339f0c..0000000000 --- a/linuxthreads/tst-cancel1.c +++ /dev/null @@ -1,150 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - - -static pthread_mutex_t m1 = PTHREAD_MUTEX_INITIALIZER; -static pthread_mutex_t m2 = PTHREAD_MUTEX_INITIALIZER; - -static int cntr; - - -static void -cleanup (void *arg) -{ - if (arg != (void *) 42l) - cntr = 42; - else - cntr = 1; -} - - -static void * -tf (void *arg) -{ - int err; - - pthread_cleanup_push (cleanup, (void *) 42l); - - err = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, NULL); - if (err != 0) - { - printf ("setcanceltype failed: %s\n", strerror (err)); - exit (1); - } - - err = pthread_mutex_unlock (&m2); - if (err != 0) - { - printf ("child: mutex_unlock failed: %s\n", strerror (err)); - exit (1); - } - - err = pthread_mutex_lock (&m1); - if (err != 0) - { - printf ("child: 1st mutex_lock failed: %s\n", strerror (err)); - exit (1); - } - - /* We should never come here. */ - - pthread_cleanup_pop (0); - - return NULL; -} - - -static int -do_test (void) -{ - int err; - pthread_t th; - int result = 0; - void *retval; - - /* Get the mutexes. */ - err = pthread_mutex_lock (&m1); - if (err != 0) - { - printf ("parent: 1st mutex_lock failed: %s\n", strerror (err)); - return 1; - } - err = pthread_mutex_lock (&m2); - if (err != 0) - { - printf ("parent: 2nd mutex_lock failed: %s\n", strerror (err)); - return 1; - } - - err = pthread_create (&th, NULL, tf, NULL); - if (err != 0) - { - printf ("create failed: %s\n", strerror (err)); - return 1; - } - - err = pthread_mutex_lock (&m2); - if (err != 0) - { - printf ("parent: 3rd mutex_lock failed: %s\n", strerror (err)); - return 1; - } - - err = pthread_cancel (th); - if (err != 0) - { - printf ("cancel failed: %s\n", strerror (err)); - return 1; - } - - err = pthread_join (th, &retval); - if (err != 0) - { - printf ("join failed: %s\n", strerror (err)); - return 1; - } - - if (retval != PTHREAD_CANCELED) - { - printf ("wrong return value: %p\n", retval); - result = 1; - } - - if (cntr == 42) - { - puts ("cleanup handler called with wrong argument"); - result = 1; - } - else if (cntr != 1) - { - puts ("cleanup handling not called"); - result = 1; - } - - return result; -} - - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-cancel2.c b/linuxthreads/tst-cancel2.c deleted file mode 100644 index 6d80f8ae5e..0000000000 --- a/linuxthreads/tst-cancel2.c +++ /dev/null @@ -1,100 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <signal.h> -#include <stdio.h> -#include <unistd.h> - - -static int fd[2]; - - -static void * -tf (void *arg) -{ - /* The buffer size must be larger than the pipe size so that the - write blocks. */ - char buf[100000]; - - if (write (fd[1], buf, sizeof (buf)) == sizeof (buf)) - { - puts ("write succeeded"); - return (void *) 1l; - } - - return (void *) 42l; -} - - -static int -do_test (void) -{ - pthread_t th; - void *r; - struct sigaction sa; - - sa.sa_handler = SIG_IGN; - sigemptyset (&sa.sa_mask); - sa.sa_flags = 0; - - if (sigaction (SIGPIPE, &sa, NULL) != 0) - { - puts ("sigaction failed"); - return 1; - } - - if (pipe (fd) != 0) - { - puts ("pipe failed"); - return 1; - } - - if (pthread_create (&th, NULL, tf, NULL) != 0) - { - puts ("create failed"); - return 1; - } - - if (pthread_cancel (th) != 0) - { - puts ("cancel failed"); - return 1; - } - - /* This will cause the write in the child to return. */ - close (fd[0]); - - if (pthread_join (th, &r) != 0) - { - puts ("join failed"); - return 1; - } - - if (r != PTHREAD_CANCELED) - { - printf ("result is wrong: expected %p, got %p\n", PTHREAD_CANCELED, r); - return 1; - } - - return 0; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-cancel3.c b/linuxthreads/tst-cancel3.c deleted file mode 100644 index 86c482bcc1..0000000000 --- a/linuxthreads/tst-cancel3.c +++ /dev/null @@ -1,98 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <signal.h> -#include <stdio.h> -#include <unistd.h> - - -static int fd[2]; - - -static void * -tf (void *arg) -{ - char buf[100]; - - if (read (fd[0], buf, sizeof (buf)) == sizeof (buf)) - { - puts ("read succeeded"); - return (void *) 1l; - } - - return NULL; -} - - -static int -do_test (void) -{ - pthread_t th; - void *r; - struct sigaction sa; - - sa.sa_handler = SIG_IGN; - sigemptyset (&sa.sa_mask); - sa.sa_flags = 0; - - if (sigaction (SIGPIPE, &sa, NULL) != 0) - { - puts ("sigaction failed"); - return 1; - } - - if (pipe (fd) != 0) - { - puts ("pipe failed"); - return 1; - } - - if (pthread_create (&th, NULL, tf, NULL) != 0) - { - puts ("create failed"); - return 1; - } - - if (pthread_cancel (th) != 0) - { - puts ("cancel failed"); - return 1; - } - - /* This will cause the read in the child to return. */ - close (fd[0]); - - if (pthread_join (th, &r) != 0) - { - puts ("join failed"); - return 1; - } - - if (r != PTHREAD_CANCELED) - { - puts ("result is wrong"); - return 1; - } - - return 0; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-cancel4.c b/linuxthreads/tst-cancel4.c deleted file mode 100644 index 03f6bfe056..0000000000 --- a/linuxthreads/tst-cancel4.c +++ /dev/null @@ -1,469 +0,0 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* NOTE: this tests functionality beyond POSIX. POSIX does not allow - exit to be called more than once. */ - -#include <errno.h> -#include <limits.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <sys/poll.h> -#include <sys/select.h> -#include <sys/uio.h> -#include <sys/wait.h> - -/* The following interfaces are defined to be cancellation points but - tests are not yet implemented: - - accept() aio_suspend() clock_nanosleep() - close() connect() creat() - fcntl() fsync() getmsg() - getpmsg() lockf() mq_receive() - mq_send() mq_timedreceive() mq_timedsend() - msgrcv() msgsnd() msync() - open() pause() - pread() pthread_cond_timedwait() - pthread_cond_wait() pthread_join() pthread_testcancel() - putmsg() putpmsg() pwrite() - recv() - recvfrom() recvmsg() - sem_timedwait() sem_wait() send() - sendmsg() sendto() sigpause() - sigsuspend() sigtimedwait() sigwait() - sigwaitinfo() system() - tcdrain() - - Since STREAMS are not supported in the standard Linux kernel there - is no need to test the STREAMS related functions. -*/ - -/* Pipe descriptors. */ -static int fds[2]; - -/* Often used barrier for two threads. */ -static pthread_barrier_t b2; - - -static void * -tf_read (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - char buf[100]; - ssize_t s = read (fds[0], buf, sizeof (buf)); - - printf ("%s: read returns with %zd\n", __FUNCTION__, s); - - exit (1); -} - - -static void * -tf_readv (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - char buf[100]; - struct iovec iov[1] = { [0] = { .iov_base = buf, .iov_len = sizeof (buf) } }; - ssize_t s = readv (fds[0], iov, 1); - - printf ("%s: readv returns with %zd\n", __FUNCTION__, s); - - exit (1); -} - - -static void * -tf_write (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - char buf[100000]; - memset (buf, '\0', sizeof (buf)); - ssize_t s = write (fds[1], buf, sizeof (buf)); - - printf ("%s: write returns with %zd\n", __FUNCTION__, s); - - exit (1); -} - - -static void * -tf_writev (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - char buf[100000]; - memset (buf, '\0', sizeof (buf)); - struct iovec iov[1] = { [0] = { .iov_base = buf, .iov_len = sizeof (buf) } }; - ssize_t s = writev (fds[1], iov, 1); - - printf ("%s: writev returns with %zd\n", __FUNCTION__, s); - - exit (1); -} - - -static void * -tf_sleep (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - sleep (1000000); - - printf ("%s: sleep returns\n", __FUNCTION__); - - exit (1); -} - - -static void * -tf_usleep (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - usleep ((useconds_t) ULONG_MAX); - - printf ("%s: usleep returns\n", __FUNCTION__); - - exit (1); -} - - -static void * -tf_nanosleep (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - struct timespec ts = { .tv_sec = 10000000, .tv_nsec = 0 }; - while (nanosleep (&ts, &ts) != 0) - continue; - - printf ("%s: nanosleep returns\n", __FUNCTION__); - - exit (1); -} - - -static void * -tf_select (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - fd_set rfs; - FD_ZERO (&rfs); - FD_SET (fds[0], &rfs); - - int s = select (fds[0] + 1, &rfs, NULL, NULL, NULL); - - printf ("%s: select returns with %d (%s)\n", __FUNCTION__, s, - strerror (errno)); - - exit (1); -} - - -static void * -tf_pselect (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - fd_set rfs; - FD_ZERO (&rfs); - FD_SET (fds[0], &rfs); - - int s = pselect (fds[0] + 1, &rfs, NULL, NULL, NULL, NULL); - - printf ("%s: pselect returns with %d (%s)\n", __FUNCTION__, s, - strerror (errno)); - - exit (1); -} - - -static void * -tf_poll (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - struct pollfd rfs[1] = { [0] = { .fd = fds[0], .events = POLLIN } }; - - int s = poll (rfs, 1, -1); - - printf ("%s: poll returns with %d (%s)\n", __FUNCTION__, s, - strerror (errno)); - - exit (1); -} - - -static void * -tf_wait (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - pid_t pid = fork (); - if (pid == -1) - { - puts ("fork failed"); - exit (1); - } - - if (pid == 0) - { - /* Make the program disappear after a while. */ - sleep (10); - exit (0); - } - - int s = wait (NULL); - - printf ("%s: wait returns with %d (%s)\n", __FUNCTION__, s, - strerror (errno)); - - exit (1); -} - - -static void * -tf_waitpid (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - pid_t pid = fork (); - if (pid == -1) - { - puts ("fork failed"); - exit (1); - } - - if (pid == 0) - { - /* Make the program disappear after a while. */ - sleep (10); - exit (0); - } - - int s = waitpid (-1, NULL, 0); - - printf ("%s: waitpid returns with %d (%s)\n", __FUNCTION__, s, - strerror (errno)); - - exit (1); -} - - -static void * -tf_waitid (void *arg) -{ - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - pid_t pid = fork (); - if (pid == -1) - { - puts ("fork failed"); - exit (1); - } - - if (pid == 0) - { - /* Make the program disappear after a while. */ - sleep (10); - exit (0); - } - -#ifndef WEXITED -# define WEXITED 0 -#endif - siginfo_t si; - int s = waitid (P_PID, pid, &si, WEXITED); - - printf ("%s: waitid returns with %d (%s)\n", __FUNCTION__, s, - strerror (errno)); - - exit (1); -} - - -static struct -{ - void *(*tf) (void *); - int nb; -} tests[] = -{ - { tf_read, 2 }, - { tf_readv, 2 }, - { tf_select, 2 }, - { tf_pselect, 2 }, - { tf_poll, 2 }, - { tf_write, 2 }, - { tf_writev, 2}, - { tf_sleep, 2 }, - { tf_usleep, 2 }, - { tf_nanosleep, 2 }, - { tf_wait, 2 }, - { tf_waitid, 2 }, - { tf_waitpid, 2 }, -}; -#define ntest_tf (sizeof (tests) / sizeof (tests[0])) - - -static int -do_test (void) -{ - if (pipe (fds) != 0) - { - puts ("pipe failed"); - exit (1); - } - - int cnt; - for (cnt = 0; cnt < ntest_tf; ++cnt) - { - printf ("round %d\n", cnt); - - if (pthread_barrier_init (&b2, NULL, tests[cnt].nb) != 0) - { - puts ("b2 init failed"); - exit (1); - } - - pthread_t th; - if (pthread_create (&th, NULL, tests[cnt].tf, NULL) != 0) - { - printf ("create for round %d test failed\n", cnt); - exit (1); - } - - puts ("barrier waits"); - - int r = pthread_barrier_wait (&b2); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - puts ("nanosleep delay"); - - struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 }; - while (nanosleep (&ts, &ts) != 0) - continue; - - if (pthread_cancel (th) != 0) - { - printf ("cancel in round %d failed\n", cnt); - exit (1); - } - - void *status; - if (pthread_join (th, &status) != 0) - { - printf ("join in round %d failed\n", cnt); - exit (1); - } - if (status != PTHREAD_CANCELED) - { - printf ("thread in round %d not canceled\n", cnt); - exit (1); - } - printf ("test %d successful\n", cnt); - - if (pthread_barrier_destroy (&b2) != 0) - { - puts ("barrier_destroy failed"); - exit (1); - } - } - - return 0; -} - -#define TIMEOUT 60 -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-cancel5.c b/linuxthreads/tst-cancel5.c deleted file mode 100644 index 1c879eba8b..0000000000 --- a/linuxthreads/tst-cancel5.c +++ /dev/null @@ -1 +0,0 @@ -#include "tst-cancel4.c" diff --git a/linuxthreads/tst-cancel6.c b/linuxthreads/tst-cancel6.c deleted file mode 100644 index 94de85830b..0000000000 --- a/linuxthreads/tst-cancel6.c +++ /dev/null @@ -1,79 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> - - -static void * -tf (void *arg) -{ - char buf[100]; - fgets (buf, sizeof (buf), arg); - /* This call should never return. */ - return NULL; -} - - -static int -do_test (void) -{ - int fd[2]; - if (pipe (fd) != 0) - { - puts ("pipe failed"); - return 1; - } - - FILE *fp = fdopen (fd[0], "r"); - if (fp == NULL) - { - puts ("fdopen failed"); - return 1; - } - - pthread_t th; - if (pthread_create (&th, NULL, tf, fp) != 0) - { - puts ("pthread_create failed"); - return 1; - } - - sleep (1); - - if (pthread_cancel (th) != 0) - { - puts ("pthread_cancel failed"); - return 1; - } - - void *r; - if (pthread_join (th, &r) != 0) - { - puts ("pthread_join failed"); - return 1; - } - - return r != PTHREAD_CANCELED; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-cancel7.c b/linuxthreads/tst-cancel7.c deleted file mode 100644 index 11298eae26..0000000000 --- a/linuxthreads/tst-cancel7.c +++ /dev/null @@ -1,111 +0,0 @@ -/* Test for pthread cancellation of mutex blocks. - Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> - -pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; -pthread_barrier_t b; -int value = 0; - -static void * -tf (void *arg) -{ - int r = pthread_barrier_wait (&b); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - pthread_mutex_lock (&lock); - ++value; - pthread_testcancel (); - ++value; - pthread_mutex_unlock (&lock); - return NULL; -} - - -static int -do_test (void) -{ - pthread_mutex_lock (&lock); - - if (pthread_barrier_init (&b, NULL, 2) != 0) - { - puts ("barrier init failed"); - return 1; - } - - pthread_t th; - if (pthread_create (&th, NULL, tf, NULL) != 0) - { - puts ("pthread_create failed"); - return 1; - } - - int r = pthread_barrier_wait (&b); - if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) - { - printf ("%s: barrier_wait failed\n", __FUNCTION__); - exit (1); - } - - if (pthread_cancel (th) != 0) - { - puts ("pthread_cancel failed"); - return 1; - } - - pthread_mutex_unlock (&lock); - - void *status; - if (pthread_join (th, &status) != 0) - { - puts ("join failed"); - return 1; - } - - if (status != PTHREAD_CANCELED) - { - puts ("thread not canceled"); - return 1; - } - - if (value == 0) - { - puts ("thread cancelled in the pthread_mutex_lock call"); - return 1; - } - - if (value != 1) - { - puts ("thread not cancelled in pthread_testcancel call"); - return 1; - } - - return 0; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-cancel8.c b/linuxthreads/tst-cancel8.c deleted file mode 100644 index 478d104fb3..0000000000 --- a/linuxthreads/tst-cancel8.c +++ /dev/null @@ -1,287 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <error.h> -#include <fcntl.h> -#include <pthread.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/select.h> -#include <sys/time.h> -#include <unistd.h> - -static void * -tf (void *arg) -{ - return NULL; -} - -static void -handler (int sig) -{ -} - -static void __attribute__ ((noinline)) -clobber_lots_of_regs (void) -{ -#define X1(n) long r##n = 10##n; __asm __volatile ("" : "+r" (r##n)); -#define X2(n) X1(n##0) X1(n##1) X1(n##2) X1(n##3) X1(n##4) -#define X3(n) X2(n##0) X2(n##1) X2(n##2) X2(n##3) X2(n##4) - X3(0) X3(1) X3(2) X3(3) X3(4) -#undef X1 -#define X1(n) __asm __volatile ("" : : "r" (r##n)); - X3(0) X3(1) X3(2) X3(3) X3(4) -#undef X1 -#undef X2 -#undef X3 -} - -static int -do_test (void) -{ - pthread_t th; - int old, rc; - int ret = 0; - int fd[2]; - - rc = pipe (fd); - if (rc < 0) - error (EXIT_FAILURE, errno, "couldn't create pipe"); - - rc = pthread_create (&th, NULL, tf, NULL); - if (rc) - error (EXIT_FAILURE, rc, "couldn't create thread"); - - rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old); - if (rc) - { - error (0, rc, "1st pthread_setcanceltype failed"); - ret = 1; - } - if (old != PTHREAD_CANCEL_DEFERRED && old != PTHREAD_CANCEL_ASYNCHRONOUS) - { - error (0, 0, "1st pthread_setcanceltype returned invalid value %d", - old); - ret = 1; - } - - clobber_lots_of_regs (); - close (fd[0]); - - rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old); - if (rc) - { - error (0, rc, "pthread_setcanceltype after close failed"); - ret = 1; - } - if (old != PTHREAD_CANCEL_DEFERRED) - { - error (0, 0, "pthread_setcanceltype after close returned invalid value %d", - old); - ret = 1; - } - - clobber_lots_of_regs (); - close (fd[1]); - - rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old); - if (rc) - { - error (0, rc, "pthread_setcanceltype after 2nd close failed"); - ret = 1; - } - if (old != PTHREAD_CANCEL_ASYNCHRONOUS) - { - error (0, 0, "pthread_setcanceltype after 2nd close returned invalid value %d", - old); - ret = 1; - } - - struct sigaction sa = { .sa_handler = handler, .sa_flags = 0 }; - sigemptyset (&sa.sa_mask); - sigaction (SIGALRM, &sa, NULL); - - struct itimerval it; - it.it_value.tv_sec = 1; - it.it_value.tv_usec = 0; - it.it_interval = it.it_value; - setitimer (ITIMER_REAL, &it, NULL); - - clobber_lots_of_regs (); - pause (); - - memset (&it, 0, sizeof (it)); - setitimer (ITIMER_REAL, &it, NULL); - - rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old); - if (rc) - { - error (0, rc, "pthread_setcanceltype after pause failed"); - ret = 1; - } - if (old != PTHREAD_CANCEL_DEFERRED) - { - error (0, 0, "pthread_setcanceltype after pause returned invalid value %d", - old); - ret = 1; - } - - it.it_value.tv_sec = 1; - it.it_value.tv_usec = 0; - it.it_interval = it.it_value; - setitimer (ITIMER_REAL, &it, NULL); - - clobber_lots_of_regs (); - pause (); - - memset (&it, 0, sizeof (it)); - setitimer (ITIMER_REAL, &it, NULL); - - rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old); - if (rc) - { - error (0, rc, "pthread_setcanceltype after 2nd pause failed"); - ret = 1; - } - if (old != PTHREAD_CANCEL_ASYNCHRONOUS) - { - error (0, 0, "pthread_setcanceltype after 2nd pause returned invalid value %d", - old); - ret = 1; - } - - char fname[] = "/tmp/tst-lt-cancel8-dir-XXXXXX\0foo/bar"; - char *enddir = strchr (fname, '\0'); - if (mkdtemp (fname) == NULL) - { - error (0, errno, "mkdtemp failed"); - ret = 1; - } - *enddir = '/'; - - clobber_lots_of_regs (); - creat (fname, 0400); - - rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old); - if (rc) - { - error (0, rc, "pthread_setcanceltype after creat failed"); - ret = 1; - } - if (old != PTHREAD_CANCEL_DEFERRED) - { - error (0, 0, "pthread_setcanceltype after creat returned invalid value %d", - old); - ret = 1; - } - - clobber_lots_of_regs (); - creat (fname, 0400); - - rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old); - if (rc) - { - error (0, rc, "pthread_setcanceltype after 2nd creat failed"); - ret = 1; - } - if (old != PTHREAD_CANCEL_ASYNCHRONOUS) - { - error (0, 0, "pthread_setcanceltype after 2nd creat returned invalid value %d", - old); - ret = 1; - } - - clobber_lots_of_regs (); - open (fname, O_CREAT, 0400); - - rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old); - if (rc) - { - error (0, rc, "pthread_setcanceltype after open failed"); - ret = 1; - } - if (old != PTHREAD_CANCEL_DEFERRED) - { - error (0, 0, "pthread_setcanceltype after open returned invalid value %d", - old); - ret = 1; - } - - clobber_lots_of_regs (); - open (fname, O_CREAT, 0400); - - rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old); - if (rc) - { - error (0, rc, "pthread_setcanceltype after 2nd open failed"); - ret = 1; - } - if (old != PTHREAD_CANCEL_ASYNCHRONOUS) - { - error (0, 0, "pthread_setcanceltype after 2nd open returned invalid value %d", - old); - ret = 1; - } - - *enddir = '\0'; - rmdir (fname); - - clobber_lots_of_regs (); - select (-1, NULL, NULL, NULL, NULL); - - rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old); - if (rc) - { - error (0, rc, "pthread_setcanceltype after select failed"); - ret = 1; - } - if (old != PTHREAD_CANCEL_DEFERRED) - { - error (0, 0, "pthread_setcanceltype after select returned invalid value %d", - old); - ret = 1; - } - - clobber_lots_of_regs (); - select (-1, NULL, NULL, NULL, NULL); - - rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old); - if (rc) - { - error (0, rc, "pthread_setcanceltype after 2nd select failed"); - ret = 1; - } - if (old != PTHREAD_CANCEL_ASYNCHRONOUS) - { - error (0, 0, "pthread_setcanceltype after 2nd select returned invalid value %d", - old); - ret = 1; - } - - pthread_join (th, NULL); - - return ret; -} - -#define TIMEOUT 20 -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-clock1.c b/linuxthreads/tst-clock1.c deleted file mode 100644 index bca40956e2..0000000000 --- a/linuxthreads/tst-clock1.c +++ /dev/null @@ -1,202 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <time.h> -#include <unistd.h> - - -#if defined _POSIX_THREAD_CPUTIME && _POSIX_THREAD_CPUTIME >= 0 -static pthread_barrier_t b2; -static pthread_barrier_t bN; - - -static void * -tf (void *arg) -{ - int e = pthread_barrier_wait (&b2); - if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) - { - puts ("barrier_wait failed"); - exit (1); - } - - e = pthread_barrier_wait (&bN); - if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) - { - puts ("barrier_wait failed"); - exit (1); - } - - return NULL; -} -#endif - - -int -do_test (void) -{ -#if defined _POSIX_THREAD_CPUTIME && _POSIX_THREAD_CPUTIME >= 0 -# define N 10 - -# if _POSIX_THREAD_CPUTIME == 0 - if (sysconf (_SC_THREAD_CPUTIME) < 0) - { - puts ("_POSIX_THREAD_CPUTIME option not available"); - return 0; - } -# endif - - if (pthread_barrier_init (&b2, NULL, 2) != 0 - || pthread_barrier_init (&bN, NULL, N + 1) != 0) - { - puts ("barrier_init failed"); - return 1; - } - - struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 }; - TEMP_FAILURE_RETRY (nanosleep (&ts, &ts)); - - pthread_t th[N + 1]; - clockid_t cl[N + 1]; -# ifndef CLOCK_THREAD_CPUTIME_ID - if (pthread_getcpuclockid (pthread_self (), &cl[0]) != 0) - { - puts ("own pthread_getcpuclockid failed"); - return 1; - } -# else - cl[0] = CLOCK_THREAD_CPUTIME_ID; -# endif - - pthread_attr_t at; - - if (pthread_attr_init (&at) != 0) - { - puts ("attr_init failed"); - return 1; - } - - if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0) - { - puts ("attr_setstacksize failed"); - return 1; - } - - int i; - int e; - for (i = 0; i < N; ++i) - { - if (pthread_create (&th[i], &at, tf, NULL) != 0) - { - puts ("create failed"); - return 1; - } - - e = pthread_barrier_wait (&b2); - if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) - { - puts ("barrier_wait failed"); - return 1; - } - - ts.tv_sec = 0; - ts.tv_nsec = 100000000; - TEMP_FAILURE_RETRY (nanosleep (&ts, &ts)); - - if (pthread_getcpuclockid (th[i], &cl[i + 1]) != 0) - { - puts ("pthread_getcpuclockid failed"); - return 1; - } - } - - if (pthread_attr_destroy (&at) != 0) - { - puts ("attr_destroy failed"); - return 1; - } - - struct timespec t[N + 1]; - for (i = 0; i < N + 1; ++i) - if (clock_gettime (cl[i], &t[i]) != 0) - { - printf ("clock_gettime round %d failed\n", i); - return 1; - } - - for (i = 0; i < N; ++i) - { - struct timespec diff; - - diff.tv_sec = t[i].tv_sec - t[i + 1].tv_sec; - diff.tv_nsec = t[i].tv_nsec - t[i + 1].tv_nsec; - if (diff.tv_nsec < 0) - { - diff.tv_nsec += 1000000000; - --diff.tv_sec; - } - - if (diff.tv_sec < 0 || (diff.tv_sec == 0 && diff.tv_nsec < 100000000)) - { - printf ("\ -difference between thread %d and %d too small (%ld.%09ld)\n", - i, i + 1, (long int) diff.tv_sec, (long int) diff.tv_nsec); - return 1; - } - - printf ("diff %d->%d: %ld.%09ld\n", - i, i + 1, (long int) diff.tv_sec, (long int) diff.tv_nsec); - } - - ts.tv_sec = 0; - ts.tv_nsec = 0; - for (i = 0; i < N + 1; ++i) - if (clock_settime (cl[i], &ts) != 0) - { - printf ("clock_settime(%d) round %d failed\n", cl[i], i); - return 1; - } - - for (i = 0; i < N + 1; ++i) - { - if (clock_gettime (cl[i], &ts) != 0) - { - puts ("clock_gettime failed"); - return 1; - } - - if (ts.tv_sec > t[i].tv_sec - || (ts.tv_sec == t[i].tv_sec && ts.tv_nsec > t[i].tv_nsec)) - { - puts ("clock_settime didn't reset clock"); - return 1; - } - } -#endif - - return 0; -} - - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-context.c b/linuxthreads/tst-context.c deleted file mode 100644 index 2938a9f7fa..0000000000 --- a/linuxthreads/tst-context.c +++ /dev/null @@ -1,116 +0,0 @@ -/* Ack, a hack! We need to get the proper definition, or lack thereof, - for FLOATING_STACKS. But when !IS_IN_libpthread, this can get defined - incidentally by <tls.h>. So kludge around it. */ - -#define IS_IN_libpthread -#include <tls.h> -#undef IS_IN_libpthread -#undef USE___THREAD - -#include <errno.h> -#include <error.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <ucontext.h> - - -#define N 4 - -#ifdef FLOATING_STACKS -static char stacks[N][8192]; -static ucontext_t ctx[N][2]; -static volatile int failures; - -static void -fct (long int n) -{ - /* Just to use the thread local descriptor. */ - printf ("%ld: in %s now\n", n, __FUNCTION__); - errno = 0; -} - -static void * -threadfct (void *arg) -{ - int n = (int) (long int) arg; - - if (getcontext (&ctx[n][1]) != 0) - { - printf ("%d: cannot get context: %m\n", n); - exit (1); - } - - printf ("%d: %s: before makecontext\n", n, __FUNCTION__); - - ctx[n][1].uc_stack.ss_sp = stacks[n]; - ctx[n][1].uc_stack.ss_size = 8192; - ctx[n][1].uc_link = &ctx[n][0]; - makecontext (&ctx[n][1], (void (*) (void)) fct, 1, (long int) n); - - printf ("%d: %s: before swapcontext\n", n, __FUNCTION__); - - if (swapcontext (&ctx[n][0], &ctx[n][1]) != 0) - { - ++failures; - printf ("%d: %s: swapcontext failed\n", n, __FUNCTION__); - } - else - printf ("%d: back in %s\n", n, __FUNCTION__); - - return NULL; -} -#endif - - -#ifdef FLOATING_STACKS -static volatile int global; -#endif - -int -main (void) -{ -#ifndef FLOATING_STACKS - puts ("not supported"); - return 0; -#else - int n; - pthread_t th[N]; - ucontext_t mctx; - - puts ("making contexts"); - if (getcontext (&mctx) != 0) - { - if (errno == ENOSYS) - { - puts ("context handling not supported"); - exit (0); - } - - printf ("%s: getcontext: %m\n", __FUNCTION__); - exit (1); - } - - /* Play some tricks with this context. */ - if (++global == 1) - if (setcontext (&mctx) != 0) - { - printf ("%s: setcontext: %m\n", __FUNCTION__); - exit (1); - } - if (global != 2) - { - printf ("%s: 'global' not incremented twice\n", __FUNCTION__); - exit (1); - } - - for (n = 0; n < N; ++n) - if (pthread_create (&th[n], NULL, threadfct, (void *) (long int) n) != 0) - error (EXIT_FAILURE, errno, "cannot create all threads"); - - for (n = 0; n < N; ++n) - pthread_join (th[n], NULL); - - return failures; -#endif -} diff --git a/linuxthreads/tst-popen.c b/linuxthreads/tst-popen.c deleted file mode 100644 index f76a6e79e5..0000000000 --- a/linuxthreads/tst-popen.c +++ /dev/null @@ -1,37 +0,0 @@ -#include <errno.h> -#include <error.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -static void * -dummy (void *x) -{ - return NULL; -} - -static char buf[sizeof "something\n"]; - -static int -do_test (void) -{ - FILE *f; - pthread_t p; - - pthread_create (&p, NULL, dummy, NULL); - f = popen ("echo something", "r"); - if (f == NULL) - error (EXIT_FAILURE, errno, "popen failed"); - if (fgets (buf, sizeof (buf), f) == NULL) - error (EXIT_FAILURE, 0, "fgets failed"); - if (strcmp (buf, "something\n")) - error (EXIT_FAILURE, 0, "read wrong data"); - if (pclose (f)) - error (EXIT_FAILURE, errno, "pclose returned non-zero"); - exit (0); -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-popen2.c b/linuxthreads/tst-popen2.c deleted file mode 100644 index 3ff69acd52..0000000000 --- a/linuxthreads/tst-popen2.c +++ /dev/null @@ -1,41 +0,0 @@ -#include <errno.h> -#include <error.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -static void * -dummy (void *x) -{ - return NULL; -} - -static char buf[sizeof "something\n"]; - -static int -do_test (void) -{ - FILE *f; - pthread_t p; - int err; - - f = popen ("echo something", "r"); - if (f == NULL) - error (EXIT_FAILURE, errno, "popen failed"); - if (fgets (buf, sizeof (buf), f) == NULL) - error (EXIT_FAILURE, 0, "fgets failed"); - if (strcmp (buf, "something\n")) - error (EXIT_FAILURE, 0, "read wrong data"); - if (pclose (f)) - error (EXIT_FAILURE, errno, "pclose returned non-zero"); - if ((err = pthread_create (&p, NULL, dummy, NULL))) - error (EXIT_FAILURE, err, "pthread_create failed"); - if ((err = pthread_join (p, NULL))) - error (EXIT_FAILURE, err, "pthread_join failed"); - exit (0); -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-signal.c b/linuxthreads/tst-signal.c deleted file mode 100644 index 5eb0170c6c..0000000000 --- a/linuxthreads/tst-signal.c +++ /dev/null @@ -1,64 +0,0 @@ -/* Test sigaction wrapper. */ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Andreas Schwab <schwab@suse.de>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <stdio.h> -#include <stdlib.h> -#include <signal.h> - -int -main (int argc, char *argv[]) -{ - struct sigaction old_sa, new_sa; - - if (sigaction (SIGHUP, NULL, &old_sa) < 0) - { - printf ("cannot get signal action for SIGHUP: %m\n"); - exit (1); - } - - if (old_sa.sa_handler != SIG_IGN) - { - printf ("SIGHUP action should be SIG_IGN, is %p\n", - (void *) old_sa.sa_handler); - exit (1); - } - - new_sa.sa_handler = SIG_DFL; - if (sigaction (SIGHUP, &new_sa, NULL) < 0) - { - printf ("cannot set signal action for SIGHUP: %m\n"); - exit (1); - } - - if (sigaction (SIGHUP, NULL, &old_sa) < 0) - { - printf ("cannot get signal action for SIGHUP: %m\n"); - exit (1); - } - - if (old_sa.sa_handler != SIG_DFL) - { - printf ("SIGHUP action should be SIG_DFL, is %p\n", - (void *) old_sa.sa_handler); - exit (1); - } - - return 0; -} diff --git a/linuxthreads/tst-signal.sh b/linuxthreads/tst-signal.sh deleted file mode 100644 index fb58193822..0000000000 --- a/linuxthreads/tst-signal.sh +++ /dev/null @@ -1,28 +0,0 @@ -#! /bin/sh -# Testing the sigaction wrapper. -# Copyright (C) 2002 Free Software Foundation, Inc. -# This file is part of the GNU C Library. -# - -# The GNU C Library is free software; you can redistribute it and/or -# modify it under the terms of the GNU Lesser General Public -# License as published by the Free Software Foundation; either -# version 2.1 of the License, or (at your option) any later version. - -# The GNU C Library is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# Lesser General Public License for more details. - -# You should have received a copy of the GNU Lesser General Public -# License along with the GNU C Library; if not, write to the Free -# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA -# 02111-1307 USA. - -common_objpfx=$1; shift - -# set up to ignore SIGHUP -trap '' 1 - -exec ${common_objpfx}elf/ld.so --library-path $common_objpfx:${common_objpfx}linuxthreads \ - ${common_objpfx}linuxthreads/tst-signal diff --git a/linuxthreads/tst-stack1.c b/linuxthreads/tst-stack1.c deleted file mode 100644 index 057bfa3f9f..0000000000 --- a/linuxthreads/tst-stack1.c +++ /dev/null @@ -1,97 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* Test pthread_create/pthread_join with user defined stacks. */ - -#include <limits.h> -#include <pthread.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -static int seen; - -static void * -tf (void *p) -{ - ++seen; - return NULL; -} - -#define N 16 - -static int -do_test (void) -{ - void *stack; - int res = posix_memalign (&stack, getpagesize (), N * 4 * PTHREAD_STACK_MIN); - if (res) - { - printf ("malloc failed %s\n", strerror (res)); - return 1; - } - - pthread_attr_t attr; - pthread_attr_init (&attr); - - int result = 0; - for (int i = 0; i < N; ++i) - { - res = pthread_attr_setstack (&attr, stack + i * 4 * PTHREAD_STACK_MIN, - 4 * PTHREAD_STACK_MIN); - if (res) - { - printf ("pthread_attr_setstack failed %d\n", res); - result = 1; - continue; - } - - /* Create the thread. */ - pthread_t th; - res = pthread_create (&th, &attr, tf, NULL); - if (res) - { - printf ("pthread_create failed %d\n", res); - result = 1; - } - else - { - res = pthread_join (th, NULL); - if (res) - { - printf ("pthread_join failed %d\n", res); - result = 1; - } - } - } - - pthread_attr_destroy (&attr); - - if (seen != N) - { - printf ("seen %d != %d\n", seen, N); - result = 1; - } - - return result; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-static-locale.c b/linuxthreads/tst-static-locale.c deleted file mode 100644 index 3c88e729ba..0000000000 --- a/linuxthreads/tst-static-locale.c +++ /dev/null @@ -1,13 +0,0 @@ -/* Test that the thread-local locale works right in the main thread - when statically linked. */ - -#include "../locale/tst-C-locale.c" - -#include <pthread.h> - -/* This is never called, just here to get pthreads linked in. */ -void -useless (void) -{ - pthread_create (0, 0, 0, 0); -} diff --git a/linuxthreads/tst-tls1.c b/linuxthreads/tst-tls1.c deleted file mode 100644 index 3638b75455..0000000000 --- a/linuxthreads/tst-tls1.c +++ /dev/null @@ -1,91 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* Check alignment, overlapping and layout of TLS variables. */ -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <pthread.h> -#include <sys/param.h> - -#include "tst-tls1.h" - -#ifdef TLS_REGISTER - -struct tls_obj tls_registry[64]; - -static int -tls_addr_cmp (const void *a, const void *b) -{ - if (((struct tls_obj *)a)->addr < ((struct tls_obj *)b)->addr) - return -1; - if (((struct tls_obj *)a)->addr > ((struct tls_obj *)b)->addr) - return 1; - return 0; -} - -static int -do_test (void) -{ - size_t cnt, i; - int res = 0; - uintptr_t min_addr = ~(uintptr_t) 0, max_addr = 0; - - for (cnt = 0; tls_registry[cnt].name; ++cnt); - - qsort (tls_registry, cnt, sizeof (struct tls_obj), tls_addr_cmp); - - for (i = 0; i < cnt; ++i) - { - printf ("%s = %p, size %zd, align %zd", - tls_registry[i].name, (void *) tls_registry[i].addr, - tls_registry[i].size, tls_registry[i].align); - if (tls_registry[i].addr & (tls_registry[i].align - 1)) - { - fputs (", WRONG ALIGNMENT", stdout); - res = 1; - } - if (i > 0 - && (tls_registry[i - 1].addr + tls_registry[i - 1].size - > tls_registry[i].addr)) - { - fputs (", ADDRESS OVERLAP", stdout); - res = 1; - } - puts (""); - min_addr = MIN (tls_registry[i].addr, min_addr); - max_addr = MAX (tls_registry[i].addr + tls_registry[i].size, - max_addr); - } - - if (cnt > 1) - printf ("Initial TLS used block size %zd\n", - (size_t) (max_addr - min_addr)); - return res; -} - -#define TEST_FUNCTION do_test () - -#else - -#define TEST_FUNCTION 0 - -#endif - -#include "../test-skeleton.c" diff --git a/linuxthreads/tst-tls1.h b/linuxthreads/tst-tls1.h deleted file mode 100644 index b7c14eb82c..0000000000 --- a/linuxthreads/tst-tls1.h +++ /dev/null @@ -1,28 +0,0 @@ -#include <stdint.h> -#include <stdlib.h> -#include <tls.h> - -#if USE_TLS && HAVE___THREAD - -struct tls_obj -{ - const char *name; - uintptr_t addr; - size_t size; - size_t align; -}; -extern struct tls_obj tls_registry[]; - -#define TLS_REGISTER(x) \ -static void __attribute__((constructor)) \ -tls_register_##x (void) \ -{ \ - size_t i; \ - for (i = 0; tls_registry[i].name; ++i); \ - tls_registry[i].name = #x; \ - tls_registry[i].addr = (uintptr_t) &x; \ - tls_registry[i].size = sizeof (x); \ - tls_registry[i].align = __alignof__ (x); \ -} - -#endif diff --git a/linuxthreads/tst-tls1mod.c b/linuxthreads/tst-tls1mod.c deleted file mode 100644 index a93d2cb9e6..0000000000 --- a/linuxthreads/tst-tls1mod.c +++ /dev/null @@ -1,6 +0,0 @@ -#include <tst-tls1.h> - -#ifdef TLS_REGISTER -/* Ensure tls_registry is exported from the binary. */ -void *tst_tls1mod attribute_hidden = tls_registry; -#endif diff --git a/linuxthreads/tst-tls1moda.c b/linuxthreads/tst-tls1moda.c deleted file mode 100644 index a652ef981f..0000000000 --- a/linuxthreads/tst-tls1moda.c +++ /dev/null @@ -1,6 +0,0 @@ -#include <tst-tls1.h> - -#ifdef TLS_REGISTER -static __thread char a [32] __attribute__ ((aligned (64))); -TLS_REGISTER (a) -#endif diff --git a/linuxthreads/tst-tls1modb.c b/linuxthreads/tst-tls1modb.c deleted file mode 100644 index be8c95b486..0000000000 --- a/linuxthreads/tst-tls1modb.c +++ /dev/null @@ -1,6 +0,0 @@ -#include <tst-tls1.h> - -#ifdef TLS_REGISTER -static __thread int b; -TLS_REGISTER (b) -#endif diff --git a/linuxthreads/tst-tls1modc.c b/linuxthreads/tst-tls1modc.c deleted file mode 100644 index e1094bf7aa..0000000000 --- a/linuxthreads/tst-tls1modc.c +++ /dev/null @@ -1,6 +0,0 @@ -#include <tst-tls1.h> - -#ifdef TLS_REGISTER -static __thread int c; -TLS_REGISTER (c) -#endif diff --git a/linuxthreads/tst-tls1modd.c b/linuxthreads/tst-tls1modd.c deleted file mode 100644 index cd68e0c26a..0000000000 --- a/linuxthreads/tst-tls1modd.c +++ /dev/null @@ -1,6 +0,0 @@ -#include <tst-tls1.h> - -#ifdef TLS_REGISTER -static __thread int d; -TLS_REGISTER (d) -#endif diff --git a/linuxthreads/tst-tls1mode.c b/linuxthreads/tst-tls1mode.c deleted file mode 100644 index 845d31a4e4..0000000000 --- a/linuxthreads/tst-tls1mode.c +++ /dev/null @@ -1,8 +0,0 @@ -#include <tst-tls1.h> - -#ifdef TLS_REGISTER -static __thread int e1 = 24; -static __thread char e2 [32] __attribute__ ((aligned (64))); -TLS_REGISTER (e1) -TLS_REGISTER (e2) -#endif diff --git a/linuxthreads/tst-tls1modf.c b/linuxthreads/tst-tls1modf.c deleted file mode 100644 index a292e56c57..0000000000 --- a/linuxthreads/tst-tls1modf.c +++ /dev/null @@ -1,9 +0,0 @@ -#include <tst-tls1.h> - -#ifdef TLS_REGISTER -char tst_tls1modf[60] attribute_hidden = { 26 }; -static __thread int f1 = 24; -static __thread char f2 [32] __attribute__ ((aligned (64))); -TLS_REGISTER (f1) -TLS_REGISTER (f2) -#endif diff --git a/linuxthreads/tst-tls2.sh b/linuxthreads/tst-tls2.sh deleted file mode 100644 index 0d13963d5e..0000000000 --- a/linuxthreads/tst-tls2.sh +++ /dev/null @@ -1,53 +0,0 @@ -#!/bin/sh - -common_objpfx=$1; shift -elf_objpfx=$1; shift -rtld_installed_name=$1; shift -logfile=$common_objpfx/linuxthreads/tst-tls2.out - -# We have to find libc and linuxthreads -library_path=${common_objpfx}:${common_objpfx}linuxthreads -tst_tls1="${elf_objpfx}${rtld_installed_name} --library-path ${library_path} \ - ${common_objpfx}/linuxthreads/tst-tls1" - -LC_ALL=C -export LC_ALL -LANG=C -export LANG - -> $logfile -fail=0 - -for aligned in a e f; do - echo "preload tst-tls1mod{$aligned,b,c,d}.so" >> $logfile - echo "===============" >> $logfile - LD_PRELOAD=`echo ${common_objpfx}linuxthreads/tst-tls1mod{$aligned,b,c,d}.so \ - | sed 's/:$//;s/: /:/g'` ${tst_tls1} >> $logfile || fail=1 - echo >> $logfile - - echo "preload tst-tls1mod{b,$aligned,c,d}.so" >> $logfile - echo "===============" >> $logfile - LD_PRELOAD=`echo ${common_objpfx}linuxthreads/tst-tls1mod{b,$aligned,c,d}.so \ - | sed 's/:$//;s/: /:/g'` ${tst_tls1} >> $logfile || fail=1 - echo >> $logfile - - echo "preload tst-tls1mod{b,c,d,$aligned}.so" >> $logfile - echo "===============" >> $logfile - LD_PRELOAD=`echo ${common_objpfx}linuxthreads/tst-tls1mod{b,c,d,$aligned}.so \ - | sed 's/:$//;s/: /:/g'` ${tst_tls1} >> $logfile || fail=1 - echo >> $logfile -done - -echo "preload tst-tls1mod{d,a,b,c,e}" >> $logfile -echo "===============" >> $logfile -LD_PRELOAD=`echo ${common_objpfx}linuxthreads/tst-tls1mod{d,a,b,c,e}.so \ - | sed 's/:$//;s/: /:/g'` ${tst_tls1} >> $logfile || fail=1 -echo >> $logfile - -echo "preload tst-tls1mod{d,a,b,e,f}" >> $logfile -echo "===============" >> $logfile -LD_PRELOAD=`echo ${common_objpfx}linuxthreads/tst-tls1mod{d,a,b,e,f}.so \ - | sed 's/:$//;s/: /:/g'` ${tst_tls1} >> $logfile || fail=1 -echo >> $logfile - -exit $fail diff --git a/linuxthreads/tst-tsd1.c b/linuxthreads/tst-tsd1.c deleted file mode 100644 index ba7973f1c4..0000000000 --- a/linuxthreads/tst-tsd1.c +++ /dev/null @@ -1,118 +0,0 @@ -/* Copyright (C) 2002, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <pthread.h> -#include <stdio.h> -#include <string.h> - - -static int -do_test (void) -{ - pthread_key_t key1; - pthread_key_t key2; - void *value; - int result = 0; - int err; - - err = pthread_key_create (&key1, NULL); - if (err != 0) - { - printf ("1st key_create failed: %s\n", strerror (err)); - return 1; - } - - /* Initial value must be NULL. */ - value = pthread_getspecific (key1); - if (value != NULL) - { - puts ("1st getspecific != NULL"); - result = 1; - } - - err = pthread_setspecific (key1, (void *) -2l); - if (err != 0) - { - printf ("1st setspecific failed: %s\n", strerror (err)); - return 1; - } - - value = pthread_getspecific (key1); - if (value == NULL) - { - puts ("2nd getspecific == NULL\n"); - result = 1; - } - else if (value != (void *) -2l) - { - puts ("2nd getspecific != -2l\n"); - result = 1; - } - - err = pthread_setspecific (key1, (void *) -3l); - if (err != 0) - { - printf ("2nd setspecific failed: %s\n", strerror (err)); - return 1; - } - - value = pthread_getspecific (key1); - if (value == NULL) - { - puts ("3rd getspecific == NULL\n"); - result = 1; - } - else if (value != (void *) -3l) - { - puts ("3rd getspecific != -2l\n"); - result = 1; - } - - err = pthread_key_delete (key1); - if (err != 0) - { - printf ("key_delete failed: %s\n", strerror (err)); - result = 1; - } - - - err = pthread_key_create (&key2, NULL); - if (err != 0) - { - printf ("2nd key_create failed: %s\n", strerror (err)); - return 1; - } - - if (key1 != key2) - puts ("key1 != key2; no more tests performed"); - else - { - value = pthread_getspecific (key2); - if (value != NULL) - { - puts ("4th getspecific != NULL"); - result = 1; - } - } - - return result; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" diff --git a/linuxthreads/tststack.c b/linuxthreads/tststack.c deleted file mode 100644 index 02b15cb8bc..0000000000 --- a/linuxthreads/tststack.c +++ /dev/null @@ -1,74 +0,0 @@ -/* Tests for variable stack size handling. - Copyright (C) 2000, 2003 Free Software Foundation, Inc. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2000. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <pthread.h> -#include <stdio.h> -#include <unistd.h> -#include <limits.h> -#include <sys/param.h> - -static void *f1 (void *); -static void *f2 (void *); - -int -main (void) -{ - pthread_attr_t attr; - pthread_t th1 = 0; - pthread_t th2 = 0; - void *res1; - void *res2; - - pthread_attr_init (&attr); - if (pthread_attr_setstacksize (&attr, MAX (70*1024, PTHREAD_STACK_MIN)) != 0) - { - puts ("invalid stack size"); - return 1; - } - - pthread_create (&th1, NULL, f1, NULL); - pthread_create (&th2, &attr, f2, NULL); - - pthread_join (th1, &res1); - pthread_join (th2, &res2); - - printf ("res1 = %p\n", res1); - printf ("res2 = %p\n", res2); - - return res1 != (void *) 1 || res2 != (void *) 2; -} - -static void * -f1 (void *parm) -{ - printf ("This is `%s'\n", __FUNCTION__); - fflush (stdout); - - return (void *) 1; -} - -static void * -f2 (void *parm) -{ - printf ("This is `%s'\n", __FUNCTION__); - fflush (stdout); - sleep (1); - - return (void *) 2; -} diff --git a/linuxthreads/unload.c b/linuxthreads/unload.c deleted file mode 100644 index 234d27f904..0000000000 --- a/linuxthreads/unload.c +++ /dev/null @@ -1,45 +0,0 @@ -/* Tests for non-unloading of libpthread. - Copyright (C) 2000, 2002 Free Software Foundation, Inc. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2000. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <dlfcn.h> -#include <stdio.h> -#include <stdlib.h> -#include <gnu/lib-names.h> - -int -main (void) -{ - void *p = dlopen (PREFIX LIBPTHREAD_SO, RTLD_LAZY); - - if (p == NULL) - { - printf ("failed to load %s: %s\n", LIBPTHREAD_SO, dlerror ()); - exit (1); - } - - if (dlclose (p) != 0) - { - printf ("dlclose (%s) failed: %s\n", LIBPTHREAD_SO, dlerror ()); - exit (1); - } - - puts ("seems to work"); - - exit (0); -} |