/* Copyright (C) 2002, 2003, 2005, 2007 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 <sysdep.h>#include <lowlevellock.h>#include <shlib-compat.h>#include <pthread-errnos.h>	.text	.globl	sem_trywait	.type	sem_trywait,@function	.align	16sem_trywait:	movl	(%rdi), %eax2:	testl	%eax, %eax	jz	1f	leal	-1(%rax), %edx	LOCK	cmpxchgl %edx, (%rdi)	jne	2b	xorl	%eax, %eax	retq1:#if USE___THREAD	movq	errno@gottpoff(%rip), %rdx	movl	$EAGAIN, %fs:(%rdx)#else	callq	__errno_location@plt	movl	$EAGAIN, (%rax)#endif	orl	$-1, %eax	retq	.size	sem_trywait,.-sem_trywait