Update.

	* Makefile (libpthread-routines): Remove lowlevelrwlock.  Add
	pthread_rwlock_rdlock, pthread_rwlock_timedrdlock,
	pthread_rwlock_wrlock, pthread_rwlock_timedwrlock, and
	pthread_rwlock_unlock.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevelrwlock.S: Removed
	* sysdeps/unix/sysv/linux/i386/i586/lowlevelrwlock.S: Removed
	* sysdeps/unix/sysv/linux/i386/i686/lowlevelrwlock.S: Removed
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S: New file.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S:
	New file.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S: New file.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S:
	New file.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S: New file.
	* sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_rdlock.S: New file.
	* sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedrdlock.S:
	New file.
	* sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_wrlock.S: New file.
	* sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedwrlock.S:
	New file.
	* sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_unlock.S: New file.
	* sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_rdlock.S: New file.
	* sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedrdlock.S:
	New file.
	* sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_wrlock.S: New file.
	* sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedwrlock.S:
	New file.
	* sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_unlock.S: New file.

1 files changed, 112 insertions, 0 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
new file mode 100644
index 0000000000..829604662e
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
@@ -0,0 +1,112 @@
+/* Copyright (C) 2002, 2003 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 <lowlevelrwlock.h>
+
+
+#define SYS_futex		240
+#define FUTEX_WAIT		0
+#define FUTEX_WAKE		1
+
+#ifndef UP
+# define LOCK lock
+#else
+# define LOCK
+#endif
+
+
+	.text
+
+	.globl	__pthread_rwlock_unlock
+	.type	__pthread_rwlock_unlock,@function
+	.align	16
+__pthread_rwlock_unlock:
+	pushl	%ebx
+	pushl	%esi
+	pushl	%edi
+
+	xorl	%esi, %esi
+	xorl	%edx, %edx
+	movl	16(%esp), %edi
+
+	/* Get the lock.  */
+	movl	$1, %eax
+	LOCK
+#if MUTEX == 0
+	xaddl	%eax, (%edi)
+#else
+	xaddl	%eax, MUTEX(%edi)
+#endif
+	testl	%eax, %eax
+	jne	1f
+
+2:	cmpl	$0, WRITER(%edi)
+	jne	5f
+	decl	NR_READERS(%edi)
+	jnz	6f
+
+5:	movl	$0, WRITER(%edi)
+
+	movl	$0x7fffffff, %edx
+	leal	READERS_WAKEUP(%edi), %ebx
+	movl	$1, %ecx
+	leal	WRITERS_WAKEUP(%edi), %eax
+	cmpl	$0, WRITERS_QUEUED(%edi)
+#ifdef HAVE_CMOV
+	cmovnel	%ecx, %edx
+	cmovnel	%eax, %ebx
+#else
+	je	0f
+	movl	%ecx, %edx
+	movl	%eax, %ebx
+0:
+#endif
+	movl	$SYS_futex, %eax
+	ENTER_KERNEL
+
+6:	LOCK
+#if MUTEX == 0
+	decl	(%edi)
+#else
+	decl	MUTEX(%edi)
+#endif
+	jne	3f
+
+4:	xorl	%eax, %eax
+	popl	%edi
+	popl	%esi
+	popl	%ebx
+	ret
+
+1:	movl	%edi, %ecx
+	call	__lll_mutex_lock_wait
+	jmp	2b
+
+3:	movl	%edi, %eax
+	call	__lll_mutex_unlock_wake
+	jmp	4b
+
+	.size	__pthread_rwlock_unlock,.-__pthread_rwlock_unlock
+
+	.globl	pthread_rwlock_unlock
+pthread_rwlock_unlock = __pthread_rwlock_unlock
+
+	.globl	__pthread_rwlock_unlock_internal
+__pthread_rwlock_unlock_internal = __pthread_rwlock_unlock