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/* Copyright (C) 2002-2013 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, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <shlib-compat.h>
#include <pthread-errnos.h>
#include <lowlevellock.h>
.text
.globl __new_sem_trywait
.type __new_sem_trywait,@function
.align 16
__new_sem_trywait:
movl 4(%esp), %ecx
movl (%ecx), %eax
2: testl %eax, %eax
jz 1f
leal -1(%eax), %edx
LOCK
cmpxchgl %edx, (%ecx)
jne 2b
xorl %eax, %eax
ret
1:
#ifdef PIC
SETUP_PIC_REG(cx)
#else
movl $3f, %ecx
3:
#endif
addl $_GLOBAL_OFFSET_TABLE_, %ecx
#ifdef NO_TLS_DIRECT_SEG_REFS
movl errno@gotntpoff(%ecx), %edx
addl %gs:0, %edx
movl $EAGAIN, (%edx)
#else
movl errno@gotntpoff(%ecx), %edx
movl $EAGAIN, %gs:(%edx)
#endif
orl $-1, %eax
ret
.size __new_sem_trywait,.-__new_sem_trywait
versioned_symbol(libpthread, __new_sem_trywait, sem_trywait, GLIBC_2_1)
#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
.global __old_sem_trywait
__old_sem_trywait = __new_sem_trywait
compat_symbol(libpthread, __old_sem_trywait, sem_trywait, GLIBC_2_0)
#endif
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