Update.

2003-03-01  Ulrich Drepper  <drepper@redhat.com>

	* descr.h (struct pthread): Move tid field to the front now that
	it is often used.

	* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevelmutex.S
	(__lll_mutex_timedlock_wait): Remove.
	(__lll_mutex_unlock_wake): Don't save, load, and restore %esi.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevelmutex.S
	(__lll_mutex_unlock_wake): Don't save, load, and restore %esi.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
	(lll_unlock_wake_cb): Don't save and restore %esi.
	(__lll_unlock_wake): Add alignment.  Don't save, load, and restore
	%esi.
	(__lll_timedwait_tid): Add alignment.
	* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S
	(__lll_unlock_wake): Add alignment.  Don't save, load, and restore
	%esi.
	(__lll_timedwait_tid): Removed.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S
	(__pthread_cond_broadcast): Don't save, load, and restore %esi.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S
	(pthread_barrier_wait): Don't save, load, and restore %esi for
	last thread.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
	(__pthread_cond_signal): Don't save, load, and restore %esi.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
	(__pthread_rwlock_unlock): Don't save, load, and restore %esi.
	* sysdeps/unix/sysv/linux/i386/i486/sem_post.S (__new_sem_post):
	Don't save, load, and restore %esi.

9 files changed, 19 insertions, 197 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S
index 34840092ed..de0df72d78 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S
@@ -69,8 +69,8 @@ __lll_lock_wait:
 	.globl	__lll_unlock_wake
 	.type	__lll_unlock_wake,@function
 	.hidden	__lll_unlock_wake
+	.align	16
 __lll_unlock_wake:
-	pushl	%esi
 	pushl	%ebx
 	pushl	%ecx
 	pushl	%edx
@@ -78,80 +78,12 @@ __lll_unlock_wake:
 	movl	%eax, %ebx
 1:	movl	$FUTEX_WAKE, %ecx
 	movl	$1, %edx	/* Wake one thread.  */
-	xorl	%esi, %esi
-	movl	%edx, (%ebx)	/* Stores '$1'.  */
 	movl	$SYS_futex, %eax
+	movl	%edx, (%ebx)	/* Stores '$1'.  */
 	ENTER_KERNEL
 
 	popl	%edx
 	popl	%ecx
 	popl	%ebx
-	popl	%esi
 	ret
 	.size	__lll_unlock_wake,.-__lll_unlock_wake
-
-
-	.globl	__lll_timedwait_tid
-	.type	__lll_timedwait_tid,@function
-	.hidden	__lll_timedwait_tid
-__lll_timedwait_tid:
-	pushl	%edi
-	pushl	%esi
-	pushl	%ebx
-	pushl	%ebp
-
-	movl	%eax, %ebp
-	movl	%edx, %edi
-	subl	$8, %esp
-
-	/* Get current time.  */
-2:	movl	%esp, %ebx
-	xorl	%ecx, %ecx
-	movl	$SYS_gettimeofday, %eax
-	ENTER_KERNEL
-
-	/* Compute relative timeout.  */
-	movl	4(%esp), %eax
-	movl	$1000, %edx
-	mul	%edx		/* Milli seconds to nano seconds.  */
-	movl	(%edi), %ecx
-	movl	4(%edi), %edx
-	subl	(%esp), %ecx
-	subl	%eax, %edx
-	jns	5f
-	addl	$1000000000, %edx
-	decl	%ecx
-5:	testl	%ecx, %ecx
-	js	6f		/* Time is already up.  */
-
-	movl	%ecx, (%esp)	/* Store relative timeout.  */
-	movl	%edx, 4(%esp)
-
-	movl	(%ebp), %edx
-	testl	%edx, %edx
-	jz	4f
-
-	movl	%esp, %esi
-	xorl	%ecx, %ecx	/* movl $FUTEX_WAIT, %ecx */
-	movl	%ebp, %ebx
-	movl	$SYS_futex, %eax
-	ENTER_KERNEL
-
-	movl	%eax, %edx
-
-	cmpl	$0, (%ebx)
-	jne	1f
-4:	xorl	%eax, %eax
-
-3:	addl	$8, %esp
-	popl	%ebp
-	popl	%ebx
-	popl	%esi
-	popl	%edi
-	ret
-
-1:	cmpl	$-ETIMEDOUT, %edx
-	jne	2b
-6:	movl	$ETIMEDOUT, %eax
-	jmp	3b
-	.size	__lll_timedwait_tid,.-__lll_timedwait_tid
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevelmutex.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevelmutex.S
index ccae01b84a..d17d078374 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevelmutex.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevelmutex.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* 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.
 
@@ -68,113 +68,24 @@ __lll_mutex_lock_wait:
 	.size	__lll_mutex_lock_wait,.-__lll_mutex_lock_wait
 
 
-	.globl	__lll_mutex_timedlock_wait
-	.type	__lll_mutex_timedlock_wait,@function
-	.hidden	__lll_mutex_timedlock_wait
-	.align	16
-__lll_mutex_timedlock_wait:
-	/* Check for a valid timeout value.  */
-	cmpl	$1000000000, 4(%edx)
-	jae	3f
-
-	pushl	%edi
-	pushl	%esi
-	pushl	%ebx
-	pushl	%ebp
-
-	/* Stack frame for the timespec and timeval structs.  */
-	subl	$8, %esp
-
-	movl	%ecx, %ebp
-	movl	%edx, %edi
-	leal	1(%eax), %esi
-
-	/* Get current time.  */
-1:
-	movl	%esp, %ebx
-	xorl	%ecx, %ecx
-	movl	$SYS_gettimeofday, %eax
-	ENTER_KERNEL
-
-	/* Compute relative timeout.  */
-	movl	4(%esp), %eax
-	movl	$1000, %edx
-	mul	%edx		/* Milli seconds to nano seconds.  */
-	movl	(%edi), %ecx
-	movl	4(%edi), %edx
-	subl	(%esp), %ecx
-	subl	%eax, %edx
-	jns	4f
-	addl	$1000000000, %edx
-	decl	%ecx
-4:	testl	%ecx, %ecx
-	js	5f		/* Time is already up.  */
-
-	/* Futex call.  */
-	movl	%ecx, (%esp)	/* Store relative timeout.  */
-	movl	%edx, 4(%esp)
-	movl	%esi, %edx
-	movl	%esp, %esi
-	xorl	%ecx, %ecx	/* movl $FUTEX_WAIT, %ecx */
-	movl	%ebp, %ebx
-	movl	$SYS_futex, %eax
-	ENTER_KERNEL
-
-	movl	$1, %esi
-#ifndef UP
-	cmpl	$0, %gs:MULTIPLE_THREADS_OFFSET
-	je,pt	0f
-	lock
-0:
-#endif
-	xaddl	%esi, (%ebx)
-	testl	%esi, %esi
-	jne	7f
-
-	movl	$2, (%ebx)
-	xorl	%eax, %eax
-
-6:	addl	$8, %esp
-	popl	%ebp
-	popl	%ebx
-	popl	%esi
-	popl	%edi
-	ret
-
-	/* Check whether the time expired.  */
-7:	cmpl	$-ETIMEDOUT, %eax
-	je	5f
-	jmp	1b
-
-3:	movl	$EINVAL, %eax
-	ret
-
-5:	movl	$ETIMEDOUT, %eax
-	jmp	6b
-	.size	__lll_mutex_timedlock_wait,.-__lll_mutex_timedlock_wait
-
-
 	.globl	__lll_mutex_unlock_wake
 	.type	__lll_mutex_unlock_wake,@function
 	.hidden	__lll_mutex_unlock_wake
 	.align	16
 __lll_mutex_unlock_wake:
-	pushl	%esi
 	pushl	%ebx
 	pushl	%ecx
 	pushl	%edx
 
-	movl	$FUTEX_WAKE, %ecx
 	movl	%eax, %ebx
-	xorl	%esi, %esi
-	movl	$0, (%ebx)
+	movl	$FUTEX_WAKE, %ecx
 	movl	$1, %edx	/* Wake one thread.  */
 	movl	$SYS_futex, %eax
+	movl	$0, (%ebx)
 	ENTER_KERNEL
 
 	popl	%edx
 	popl	%ecx
 	popl	%ebx
-	popl	%esi
 	ret
 	.size	__lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
index bdfc506fe0..a40526c740 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
@@ -71,7 +71,6 @@ __lll_lock_wait:
 	.hidden	lll_unlock_wake_cb
 	.align	16
 lll_unlock_wake_cb:
-	pushl	%esi
 	pushl	%ebx
 	pushl	%ecx
 	pushl	%edx
@@ -84,7 +83,6 @@ lll_unlock_wake_cb:
 	popl	%edx
 	popl	%ecx
 	popl	%ebx
-	popl	%esi
 	ret
 	.size	lll_unlock_wake_cb,.-lll_unlock_wake_cb
 
@@ -92,8 +90,8 @@ lll_unlock_wake_cb:
 	.globl	__lll_unlock_wake
 	.type	__lll_unlock_wake,@function
 	.hidden	__lll_unlock_wake
+	.align	16
 __lll_unlock_wake:
-	pushl	%esi
 	pushl	%ebx
 	pushl	%ecx
 	pushl	%edx
@@ -101,7 +99,6 @@ __lll_unlock_wake:
 	movl	%eax, %ebx
 1:	movl	$FUTEX_WAKE, %ecx
 	movl	$1, %edx	/* Wake one thread.  */
-	xorl	%esi, %esi
 	movl	%edx, (%ebx)	/* Stores '$1'.  */
 	movl	$SYS_futex, %eax
 	ENTER_KERNEL
@@ -109,7 +106,6 @@ __lll_unlock_wake:
 	popl	%edx
 	popl	%ecx
 	popl	%ebx
-	popl	%esi
 	ret
 	.size	__lll_unlock_wake,.-__lll_unlock_wake
 
@@ -117,6 +113,7 @@ __lll_unlock_wake:
 	.globl	__lll_timedwait_tid
 	.type	__lll_timedwait_tid,@function
 	.hidden	__lll_timedwait_tid
+	.align	16
 __lll_timedwait_tid:
 	pushl	%edi
 	pushl	%esi
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelmutex.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelmutex.S
index e369c65592..3e6a71c1b4 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelmutex.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelmutex.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* 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.
 
@@ -155,14 +155,12 @@ __lll_mutex_timedlock_wait:
 	.hidden	__lll_mutex_unlock_wake
 	.align	16
 __lll_mutex_unlock_wake:
-	pushl	%esi
 	pushl	%ebx
 	pushl	%ecx
 	pushl	%edx
 
 	movl	$FUTEX_WAKE, %ecx
 	movl	%eax, %ebx
-	xorl	%esi, %esi
 	movl	$0, (%ebx)
 	movl	$1, %edx	/* Wake one thread.  */
 	movl	$SYS_futex, %eax
@@ -171,6 +169,5 @@ __lll_mutex_unlock_wake:
 	popl	%edx
 	popl	%ecx
 	popl	%ebx
-	popl	%esi
 	ret
 	.size	__lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S
index 8348f6e017..d36bc7e1b2 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S
@@ -41,11 +41,9 @@
 	.type	pthread_barrier_wait,@function
 	.align	16
 pthread_barrier_wait:
-	pushl	%esi
 	pushl	%ebx
 
-	movl	12(%esp), %ebx
-	xorl	%esi, %esi
+	movl	8(%esp), %ebx
 
 	/* Get the mutex.  */
 	orl	$-1, %eax
@@ -59,6 +57,8 @@ pthread_barrier_wait:
 	je	3f
 
 	/* There are more threads to come.  */
+	pushl	%esi
+
 #if CURR_EVENT == 0
 	movl	(%ebx), %edx
 #else
@@ -72,7 +72,8 @@ pthread_barrier_wait:
 
 	/* Wait for the remaining threads.  The call will return immediately
 	   if the CURR_EVENT memory has meanwhile been changed.  */
-7:	movl	%esi, %ecx		/* movl $FUTEX_WAIT, %ecx */
+7:	xorl	%ecx, %ecx		/* movl $FUTEX_WAIT, %ecx */
+	xorl	%esi, %esi
 8:	movl	$SYS_futex, %eax
 	ENTER_KERNEL
 
@@ -89,8 +90,8 @@ pthread_barrier_wait:
 	/* Note: %esi is still zero.  */
 	movl	%esi, %eax		/* != PTHREAD_BARRIER_SERIAL_THREAD */
 
-	popl	%ebx
 	popl	%esi
+	popl	%ebx
 	ret
 
 	/* The necessary number of threads arrived.  */
@@ -119,7 +120,6 @@ pthread_barrier_wait:
 5:	orl	$-1, %eax		/* == PTHREAD_BARRIER_SERIAL_THREAD */
 
 	popl	%ebx
-	popl	%esi
 	ret
 
 1:	leal	MUTEX(%ebx), %ecx
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S
index 34bf95af15..49fe9d761b 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S
@@ -40,10 +40,9 @@
 	.align	16
 __pthread_cond_broadcast:
 
-	pushl	%esi
 	pushl	%ebx
 
-	movl	12(%esp), %ebx
+	movl	8(%esp), %ebx
 
 	/* Get internal lock.  */
 	movl	$1, %eax
@@ -77,14 +76,12 @@ __pthread_cond_broadcast:
 
 	/* Wake up all threads.  */
 8:	movl	$FUTEX_WAKE, %ecx
-	xorl	%esi, %esi
 	movl	$SYS_futex, %eax
 	movl	$0x7fffffff, %edx
 	ENTER_KERNEL
 
 	xorl	%eax, %eax
 	popl	%ebx
-	popl	%esi
 	ret
 
 	.align	16
@@ -95,7 +92,6 @@ __pthread_cond_broadcast:
 
 6:	xorl	%eax, %eax
 	popl	%ebx
-	popl	%esi
 	ret
 
 	/* Initial locking failed.  */
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
index 404bb4ff85..807d2f5015 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
@@ -40,10 +40,9 @@
 	.align	16
 __pthread_cond_signal:
 
-	pushl	%esi
 	pushl	%ebx
 
-	movl	12(%esp), %ebx
+	movl	8(%esp), %ebx
 
 	/* Get internal lock.  */
 	movl	$1, %eax
@@ -71,7 +70,6 @@ __pthread_cond_signal:
 
 	/* Wake up one thread.  */
 	movl	$FUTEX_WAKE, %ecx
-	xorl	%esi, %esi
 	movl	$SYS_futex, %eax
 	movl	%ecx, %edx	/* movl $1, %edx */
 	ENTER_KERNEL
@@ -83,7 +81,6 @@ __pthread_cond_signal:
 
 6:	xorl	%eax, %eax
 	popl	%ebx
-	popl	%esi
 	ret
 
 	/* Initial locking failed.  */
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
index 7dd97ba49e..c51c148c55 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
@@ -39,10 +39,9 @@
 	.align	16
 __pthread_rwlock_unlock:
 	pushl	%ebx
-	pushl	%esi
 	pushl	%edi
 
-	movl	16(%esp), %edi
+	movl	12(%esp), %edi
 
 	/* Get the lock.  */
 	movl	$1, %eax
@@ -84,13 +83,11 @@ __pthread_rwlock_unlock:
 #endif
 	jne	7f
 
-8:	xorl	%esi, %esi
-	movl	$SYS_futex, %eax
+8:	movl	$SYS_futex, %eax
 	ENTER_KERNEL
 
 	xorl	%eax, %eax
 	popl	%edi
-	popl	%esi
 	popl	%ebx
 	ret
 
@@ -105,7 +102,6 @@ __pthread_rwlock_unlock:
 
 4:	xorl	%eax, %eax
 	popl	%edi
-	popl	%esi
 	popl	%ebx
 	ret
 
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S
index 8704b79091..23f33059cc 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S
@@ -39,15 +39,13 @@
 	.type	__new_sem_post,@function
 	.align	16
 __new_sem_post:
-	pushl	%esi
 	pushl	%ebx
 
-	movl	12(%esp), %ebx
+	movl	8(%esp), %ebx
 	movl	$1, %edx
 	LOCK
 	xaddl	%edx, (%ebx)
 
-	xorl	%esi, %esi
 	movl	$SYS_futex, %eax
 	movl	$FUTEX_WAKE, %ecx
 	incl	%edx
@@ -58,7 +56,6 @@ __new_sem_post:
 
 	xorl	%eax, %eax
 	popl	%ebx
-	popl	%esi
 	ret
 
 1:
@@ -80,7 +77,6 @@ __new_sem_post:
 
 	orl	$-1, %eax
 	popl	%ebx
-	popl	%esi
 	ret
 	.size	__new_sem_post,.-__new_sem_post
 	.symver	__new_sem_post, sem_post@@GLIBC_2.1