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author | Ulrich Drepper <drepper@redhat.com> | 2004-12-22 20:10:10 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2004-12-22 20:10:10 +0000 |
commit | a334319f6530564d22e775935d9c91663623a1b4 (patch) | |
tree | b5877475619e4c938e98757d518bb1e9cbead751 /linuxthreads/sysdeps/unix/sysv/linux/ia64/vfork.S | |
parent | 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff) | |
download | glibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz |
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'linuxthreads/sysdeps/unix/sysv/linux/ia64/vfork.S')
-rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/ia64/vfork.S | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/ia64/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/ia64/vfork.S new file mode 100644 index 0000000000..54acedad4c --- /dev/null +++ b/linuxthreads/sysdeps/unix/sysv/linux/ia64/vfork.S @@ -0,0 +1,54 @@ +/* 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) |