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2012-12-27Add sparc implementation of lll_futex_timed_wait_bitsetDavid S. Miller1-0/+13
nptl/ * sysdeps/unix/sysv/linux/sparc/lowlevellock.h (lll_futex_timed_wait_bitset): New macro.
2012-12-27[s390] Replace lll_futex_* assembly code with INTERNAL_SYSCALLSiddhesh Poyarekar1-74/+31
2012-12-08Fix some build warnings on s390xSiddhesh Poyarekar1-2/+2
2012-12-04Remove unused variable from powerpc sem_post.c.Joseph Myers1-2/+2
2012-11-26Cast to __intptr_t before casting pointer to int64H.J. Lu2-4/+6
2012-11-21Remove unused variable from sem_post.c.Joseph Myers1-1/+1
2012-11-05[S390,PPC] Implement FUTEX_WAIT_BITSET for timedwait functionsSiddhesh Poyarekar3-1/+48
Since the FUTEX_WAIT operation takes a relative timeout, the pthread_cond_timedwait and other timed function implementations have to get a relative timeout from the absolute timeout parameter it gets before it makes the futex syscall. This value is then converted back into an absolute timeout within the kernel. This is a waste and has hence been improved upon by a FUTEX_WAIT_BITSET operation (OR'd with FUTEX_CLOCK_REALTIME to make the kernel use the realtime clock instead of the default monotonic clock). This was implemented only in the x86 and sh assembly code and not in the C code. This patch implements support for FUTEX_WAIT_BITSET whenever available (since linux-2.6.29) for s390 and powerpc.
2012-11-03Fix coding style in sparc lowlevellock.hDavid S. Miller1-2/+2
nptl/ * sysdeps/unix/sysv/linux/sparc/lowlevellock.h (BUSY_WAIT_NOP): Add missing spaces. (__cpu_relax): Likewise.
2012-11-02Compile x86 rtld with -mno-sse -mno-mmxH.J. Lu1-2/+9
2012-10-28Define a BUSY_WAIT_NOP for sparc.David S. Miller5-0/+76
nptl/ * sysdeps/unix/sysv/linux/sparc/lowlevellock.h (BUSY_WAIT_NOP): Define when we have v9 instructions available. * sysdeps/unix/sysv/linux/sparc/sparc64/cpu_relax.S: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/cpu_relax.S: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/Makefile: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/Makefile: Add cpu_relax to libpthread-routines.
2012-10-16Adjust mutex lock in condvar_cleanup if we got it from requeue_piSiddhesh Poyarekar4-4/+17
This completes the fix to bz #14652.
2012-10-10Fix formatting in nptl/sysdeps/pthread/pthread.h.Carlos O'Donell1-2/+2
The macro pthread_cleanup_push_defer_np in pthread.h has a misaligned line continuation marker. This marker was previously aligned, but recent changes have moved it out of alignment. This change realigns the marker. This also reduces the diff against the hppa version of pthread.h where the marker is aligned.
2012-10-10Take lock in pthread_cond_wait cleanup handler only when neededSiddhesh Poyarekar5-8/+65
[BZ #14652] When a thread waiting in pthread_cond_wait with a PI mutex is cancelled after it has returned successfully from the futex syscall but just before async cancellation is disabled, it enters its cancellation handler with the mutex held and simply calling a mutex_lock again will result in a deadlock. Hence, it is necessary to see if the thread owns the lock and try to lock it only if it doesn't.
2012-10-09Add missing magic to GLIBC_PROVIDES.Roland McGrath2-202/+0
2012-10-05Correct libthreadb register access for 64-bit sparc.David S. Miller1-2/+2
[BZ #14568] * sysdeps/sparc/tls.h (DB_THREAD_SELF_INCLUDE): Delete. (DB_THREAD_SELF): Use constants for the register offsets. Correct the case of a 64-bit debugger with a 32-bit inferior.
2012-10-05Unlock mutex before going back to waiting for PI mutexesSiddhesh Poyarekar4-171/+156
[BZ #14417] A futex call with FUTEX_WAIT_REQUEUE_PI returns with the mutex locked on success. If such a successful thread is pipped to the cond_lock by another spuriously woken waiter, it could be sent back to wait on the futex with the mutex lock held, thus causing a deadlock. So it is necessary that the thread relinquishes the mutex before going back to sleep.
2012-10-02Update copyright yearsH.J. Lu1-1/+1
2012-10-02Fix clone flag name in comment to CLONE_CHILD_CLEARTID.Siddhesh Poyarekar6-6/+6
2012-10-01Fix exception table for i386 pthread_cond_waitSiddhesh Poyarekar2-2/+22
[BZ #14477] Add an additional entry in the exception table to jump to __condvar_w_cleanup2 instead of __condvar_w_cleanup for PI mutexes when %ebx contains the address of the futex instead of the condition variable.
2012-09-25Fix bugs in powerpc pthread_once.Alan Modra1-5/+16
Ref gcc.gnu.org/bugzilla/show_bug.cgi?id=52839#c10 Release barriers are needed to ensure that any memory written by init_routine is seen by other threads before *once_control changes. In the case of clear_once_control we need to flush any partially written state.
2012-09-24Add "()" when casting to uint64_t for 64-bit storeH.J. Lu1-2/+2
2012-09-19Cast to uint64_t for 64-bit storeH.J. Lu1-2/+2
2012-09-14 [BZ #14583]Jeff Law1-1/+1
* sysdeps/pthread/pthread.h: Fix prototype of __sigsetjmp.
2012-09-13Remove unused __rtld_lock_init_recursive macroH.J. Lu1-12/+0
2012-09-01Remove __ASSUME_POSIX_CPU_TIMERS.Joseph Myers1-51/+2
2012-08-31Fix sem_post race (bug 14532).Joseph Myers1-2/+2
2012-08-17Make libio compile without _IO_MTSAFE_IO.Roland McGrath1-2/+2
2012-08-16Remove __ASSUME_POSIX_TIMERS.Joseph Myers10-523/+203
2012-08-15Optimize __libc_lock_lock and __libc_lock_trylock for MIPS.Maxim Kuvyrkov1-2/+8
2012-08-08Remove __ASSUME_TGKILL.Joseph Myers4-44/+3
2012-08-07Remove some pre-2.6.16 Linux kernel conditionals.Joseph Myers1-8/+1
2012-07-25Remove unused pseudo_end labelAndreas Schwab3-8/+5
2012-06-23SH: __lll_robust_timedlock_wait: Simplify CFI directives.Thomas Schwinge1-6/+4
2012-06-07Fix build on non-v9 sparc32.Carlos Sánchez de La Lama1-1/+1
nptl/ [BZ #14205] * sysdeps/sparc/sparc32/pthread_spin_lock.S: Do not use v9 branches.
2012-06-04Wrap __builtin_expect in pthread.hSiddhesh Poyarekar1-2/+2
[BZ #14188] This fixes compilation of programs using pthread_cleanup_push built with non-gcc compilers and older gcc compilers.
2012-05-30Use x86-64 bits/pthreadtypes.h/semaphore.h for i386/x86-64H.J. Lu6-211/+2
2012-05-30Remove use of INTDEF/INTUSE in nptlAndreas Schwab15-70/+35
2012-05-28SH: Add CFI directives.Chung-Lin Tang1-5/+6
2012-05-28SH: Add CFI directives.Chung-Lin Tang16-27/+350
2012-05-25i386 port of the pthread SystemTap probesRayson Ho8-12/+33
2012-05-25Add systemtap static probe points in generic and x86_64 pthread code.Roland McGrath8-27/+49
2012-05-17Fix warnings on Linux/i686Andreas Jaeger1-4/+2
Fixes: ../sysdeps/i386/dl-machine.h:336:30: warning: unused variable ‘refsym’ [-Wunused-variable] rtld.c:1435:3: warning: implicit declaration of function ‘_dl_discover_osversion’ [-Wimplicit-function-declaration]
2012-05-15Use R*_LP to load pointer and operate on stackH.J. Lu1-31/+32
2012-05-15Use LP_OP(cmp) and RCX_LP on dep_mutex pointerH.J. Lu1-4/+4
2012-05-15Use LP_OP(op), LP_SIZE and ASM_ADDR in sem_wait.SH.J. Lu1-6/+6
2012-05-15se LP_OP(op), LP_SIZE and ASM_ADDR in sem_timedwait.SH.J. Lu1-9/+9
2012-05-15Use LP_OP(cmp) on NWAITERSH.J. Lu1-1/+1
2012-05-15Use LP_SIZE and ASM_ADDR in pthread_once.SH.J. Lu1-3/+3
2012-05-15Use LP_OP(cmp), R*_LP, LP_SIZE and ASM_ADDRH.J. Lu1-20/+20
2012-05-15Use LP_OP(cmp), R*_LP, LP_SIZE and ASM_ADDRH.J. Lu1-24/+24
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