/* 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 <lowlevelrwlock.h>#include <kernel-features.h>	.text	.globl	__pthread_rwlock_unlock	.type	__pthread_rwlock_unlock,@function	.align	16__pthread_rwlock_unlock:	/* Get the lock.  */	movl	$1, %esi	xorl	%eax, %eax	LOCK#if MUTEX == 0	cmpxchgl %esi, (%rdi)#else	cmpxchgl %esi, MUTEX(%rdi)#endif	jnz	1f2:	cmpl	$0, WRITER(%rdi)	jne	5f	decl	NR_READERS(%rdi)	jnz	6f5:	movl	$0, WRITER(%rdi)	movl	$1, %edx	leaq	WRITERS_WAKEUP(%rdi), %r10	cmpl	$0, WRITERS_QUEUED(%rdi)	jne	0f	/* If also no readers waiting nothing to do.  */	cmpl	$0, READERS_QUEUED(%rdi)	je	6f	movl	$0x7fffffff, %edx	leaq	READERS_WAKEUP(%rdi), %r100:	incl	(%r10)	LOCK#if MUTEX == 0	decl	(%rdi)#else	decl	MUTEX(%rdi)#endif	jne	7f8:#ifdef __ASSUME_PRIVATE_FUTEX	movl	$FUTEX_PRIVATE_FLAG|FUTEX_WAKE, %esi	xorl	PSHARED(%rdi), %esi#else	movl	$FUTEX_WAKE, %esi	orl	PSHARED(%rdi), %esi	xorl	%fs:PRIVATE_FUTEX, %esi#endif	movl	$SYS_futex, %eax	movq	%r10, %rdi	syscall	xorl	%eax, %eax	retq	.align	166:	LOCK#if MUTEX == 0	decl	(%rdi)#else	decl	MUTEX(%rdi)#endif	jne	3f4:	xorl	%eax, %eax	retq1:	movl	PSHARED(%rdi), %esi#if MUTEX != 0	addq	$MUTEX, %rdi#endif	callq	__lll_lock_wait#if MUTEX != 0	subq	$MUTEX, %rdi#endif	jmp	2b3:	movl	PSHARED(%rdi), %esi#if MUTEX != 0	addq	$MUTEX, %rdi#endif	callq	__lll_unlock_wake	jmp	4b7:	movl	PSHARED(%rdi), %esi#if MUTEX != 0	addq	$MUTEX, %rdi#endif	callq	__lll_unlock_wake	jmp	8b	.size	__pthread_rwlock_unlock,.-__pthread_rwlock_unlock	.globl	pthread_rwlock_unlockpthread_rwlock_unlock = __pthread_rwlock_unlock	.globl	__pthread_rwlock_unlock_internal__pthread_rwlock_unlock_internal = __pthread_rwlock_unlock