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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.
This commit is contained in:
Ulrich Drepper
parent
85c54a327d
commit
bd8bb78ba2
@ -1,3 +1,34 @@
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2003-03-01 Ulrich Drepper <drepper@redhat.com>
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* descr.h (struct pthread): Move tid field to the front now that
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it is often used.
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* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevelmutex.S
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(__lll_mutex_timedlock_wait): Remove.
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(__lll_mutex_unlock_wake): Don't save, load, and restore %esi.
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* sysdeps/unix/sysv/linux/i386/i486/lowlevelmutex.S
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(__lll_mutex_unlock_wake): Don't save, load, and restore %esi.
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* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
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(lll_unlock_wake_cb): Don't save and restore %esi.
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(__lll_unlock_wake): Add alignment. Don't save, load, and restore
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%esi.
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(__lll_timedwait_tid): Add alignment.
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* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S
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(__lll_unlock_wake): Add alignment. Don't save, load, and restore
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%esi.
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(__lll_timedwait_tid): Removed.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S
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(__pthread_cond_broadcast): Don't save, load, and restore %esi.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S
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(pthread_barrier_wait): Don't save, load, and restore %esi for
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last thread.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
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(__pthread_cond_signal): Don't save, load, and restore %esi.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
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(__pthread_rwlock_unlock): Don't save, load, and restore %esi.
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* sysdeps/unix/sysv/linux/i386/i486/sem_post.S (__new_sem_post):
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Don't save, load, and restore %esi.
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2003-02-27 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S:
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@ -76,6 +76,10 @@ struct pthread
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void *__padding[16];
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} header;
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/* Thread ID - which is also a 'is this thread descriptor (and
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therefore stack) used' flag. */
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pid_t tid;
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/* Two-level array for the thread-specific data. */
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struct pthread_key_data
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{
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@ -153,10 +157,6 @@ struct pthread
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sigjmp_buf cancelbuf;
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#define HAVE_CANCELBUF 1
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/* Thread ID - which is also a 'is this thread descriptor (and
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therefore stack) used' flag. */
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pid_t tid;
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/* Flags. Including those copied from the thread attribute. */
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int flags;
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@ -69,8 +69,8 @@ __lll_lock_wait:
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.globl __lll_unlock_wake
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.type __lll_unlock_wake,@function
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.hidden __lll_unlock_wake
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.align 16
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__lll_unlock_wake:
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pushl %esi
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pushl %ebx
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pushl %ecx
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pushl %edx
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@ -78,80 +78,12 @@ __lll_unlock_wake:
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movl %eax, %ebx
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1: movl $FUTEX_WAKE, %ecx
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movl $1, %edx /* Wake one thread. */
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xorl %esi, %esi
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movl %edx, (%ebx) /* Stores '$1'. */
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movl $SYS_futex, %eax
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movl %edx, (%ebx) /* Stores '$1'. */
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ENTER_KERNEL
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popl %edx
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popl %ecx
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popl %ebx
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popl %esi
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ret
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.size __lll_unlock_wake,.-__lll_unlock_wake
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.globl __lll_timedwait_tid
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.type __lll_timedwait_tid,@function
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.hidden __lll_timedwait_tid
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__lll_timedwait_tid:
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pushl %edi
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pushl %esi
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pushl %ebx
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pushl %ebp
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movl %eax, %ebp
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movl %edx, %edi
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subl $8, %esp
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/* Get current time. */
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2: movl %esp, %ebx
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xorl %ecx, %ecx
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movl $SYS_gettimeofday, %eax
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ENTER_KERNEL
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/* Compute relative timeout. */
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movl 4(%esp), %eax
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movl $1000, %edx
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mul %edx /* Milli seconds to nano seconds. */
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movl (%edi), %ecx
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movl 4(%edi), %edx
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subl (%esp), %ecx
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subl %eax, %edx
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jns 5f
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addl $1000000000, %edx
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decl %ecx
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5: testl %ecx, %ecx
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js 6f /* Time is already up. */
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movl %ecx, (%esp) /* Store relative timeout. */
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movl %edx, 4(%esp)
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movl (%ebp), %edx
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testl %edx, %edx
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jz 4f
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movl %esp, %esi
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xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */
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movl %ebp, %ebx
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movl $SYS_futex, %eax
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ENTER_KERNEL
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movl %eax, %edx
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cmpl $0, (%ebx)
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jne 1f
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4: xorl %eax, %eax
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3: addl $8, %esp
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popl %ebp
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popl %ebx
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popl %esi
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popl %edi
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ret
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1: cmpl $-ETIMEDOUT, %edx
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jne 2b
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6: movl $ETIMEDOUT, %eax
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jmp 3b
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.size __lll_timedwait_tid,.-__lll_timedwait_tid
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@ -1,4 +1,4 @@
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/* Copyright (C) 2002 Free Software Foundation, Inc.
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/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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@ -68,113 +68,24 @@ __lll_mutex_lock_wait:
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.size __lll_mutex_lock_wait,.-__lll_mutex_lock_wait
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.globl __lll_mutex_timedlock_wait
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.type __lll_mutex_timedlock_wait,@function
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.hidden __lll_mutex_timedlock_wait
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.align 16
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__lll_mutex_timedlock_wait:
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/* Check for a valid timeout value. */
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cmpl $1000000000, 4(%edx)
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jae 3f
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pushl %edi
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pushl %esi
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pushl %ebx
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pushl %ebp
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/* Stack frame for the timespec and timeval structs. */
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subl $8, %esp
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movl %ecx, %ebp
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movl %edx, %edi
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leal 1(%eax), %esi
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/* Get current time. */
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1:
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movl %esp, %ebx
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xorl %ecx, %ecx
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movl $SYS_gettimeofday, %eax
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ENTER_KERNEL
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/* Compute relative timeout. */
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movl 4(%esp), %eax
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movl $1000, %edx
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mul %edx /* Milli seconds to nano seconds. */
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movl (%edi), %ecx
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movl 4(%edi), %edx
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subl (%esp), %ecx
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subl %eax, %edx
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jns 4f
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addl $1000000000, %edx
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decl %ecx
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4: testl %ecx, %ecx
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js 5f /* Time is already up. */
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/* Futex call. */
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movl %ecx, (%esp) /* Store relative timeout. */
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movl %edx, 4(%esp)
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movl %esi, %edx
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movl %esp, %esi
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xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */
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movl %ebp, %ebx
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movl $SYS_futex, %eax
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ENTER_KERNEL
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movl $1, %esi
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#ifndef UP
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cmpl $0, %gs:MULTIPLE_THREADS_OFFSET
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je,pt 0f
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lock
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0:
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#endif
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xaddl %esi, (%ebx)
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testl %esi, %esi
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jne 7f
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movl $2, (%ebx)
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xorl %eax, %eax
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6: addl $8, %esp
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popl %ebp
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popl %ebx
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popl %esi
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popl %edi
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ret
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/* Check whether the time expired. */
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7: cmpl $-ETIMEDOUT, %eax
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je 5f
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jmp 1b
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3: movl $EINVAL, %eax
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ret
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5: movl $ETIMEDOUT, %eax
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jmp 6b
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.size __lll_mutex_timedlock_wait,.-__lll_mutex_timedlock_wait
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.globl __lll_mutex_unlock_wake
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.type __lll_mutex_unlock_wake,@function
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.hidden __lll_mutex_unlock_wake
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.align 16
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__lll_mutex_unlock_wake:
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pushl %esi
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pushl %ebx
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pushl %ecx
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pushl %edx
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movl $FUTEX_WAKE, %ecx
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movl %eax, %ebx
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xorl %esi, %esi
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movl $0, (%ebx)
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movl $FUTEX_WAKE, %ecx
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movl $1, %edx /* Wake one thread. */
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movl $SYS_futex, %eax
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movl $0, (%ebx)
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ENTER_KERNEL
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popl %edx
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popl %ecx
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popl %ebx
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popl %esi
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ret
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.size __lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake
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@ -71,7 +71,6 @@ __lll_lock_wait:
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.hidden lll_unlock_wake_cb
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.align 16
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lll_unlock_wake_cb:
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pushl %esi
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pushl %ebx
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pushl %ecx
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pushl %edx
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@ -84,7 +83,6 @@ lll_unlock_wake_cb:
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popl %edx
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popl %ecx
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popl %ebx
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popl %esi
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ret
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.size lll_unlock_wake_cb,.-lll_unlock_wake_cb
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@ -92,8 +90,8 @@ lll_unlock_wake_cb:
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.globl __lll_unlock_wake
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.type __lll_unlock_wake,@function
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.hidden __lll_unlock_wake
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.align 16
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__lll_unlock_wake:
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pushl %esi
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pushl %ebx
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pushl %ecx
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pushl %edx
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@ -101,7 +99,6 @@ __lll_unlock_wake:
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movl %eax, %ebx
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1: movl $FUTEX_WAKE, %ecx
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movl $1, %edx /* Wake one thread. */
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xorl %esi, %esi
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movl %edx, (%ebx) /* Stores '$1'. */
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movl $SYS_futex, %eax
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ENTER_KERNEL
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@ -109,7 +106,6 @@ __lll_unlock_wake:
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popl %edx
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popl %ecx
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popl %ebx
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popl %esi
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ret
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.size __lll_unlock_wake,.-__lll_unlock_wake
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@ -117,6 +113,7 @@ __lll_unlock_wake:
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.globl __lll_timedwait_tid
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.type __lll_timedwait_tid,@function
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.hidden __lll_timedwait_tid
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.align 16
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__lll_timedwait_tid:
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pushl %edi
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pushl %esi
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@ -1,4 +1,4 @@
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/* Copyright (C) 2002 Free Software Foundation, Inc.
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/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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@ -155,14 +155,12 @@ __lll_mutex_timedlock_wait:
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.hidden __lll_mutex_unlock_wake
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.align 16
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__lll_mutex_unlock_wake:
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pushl %esi
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pushl %ebx
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pushl %ecx
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pushl %edx
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movl $FUTEX_WAKE, %ecx
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movl %eax, %ebx
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xorl %esi, %esi
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movl $0, (%ebx)
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movl $1, %edx /* Wake one thread. */
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movl $SYS_futex, %eax
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@ -171,6 +169,5 @@ __lll_mutex_unlock_wake:
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popl %edx
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popl %ecx
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popl %ebx
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popl %esi
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ret
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.size __lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake
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@ -41,11 +41,9 @@
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.type pthread_barrier_wait,@function
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.align 16
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pthread_barrier_wait:
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pushl %esi
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pushl %ebx
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movl 12(%esp), %ebx
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xorl %esi, %esi
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movl 8(%esp), %ebx
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/* Get the mutex. */
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orl $-1, %eax
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@ -59,6 +57,8 @@ pthread_barrier_wait:
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je 3f
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/* There are more threads to come. */
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pushl %esi
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#if CURR_EVENT == 0
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movl (%ebx), %edx
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#else
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@ -72,7 +72,8 @@ pthread_barrier_wait:
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/* Wait for the remaining threads. The call will return immediately
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if the CURR_EVENT memory has meanwhile been changed. */
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7: movl %esi, %ecx /* movl $FUTEX_WAIT, %ecx */
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7: xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */
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xorl %esi, %esi
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8: movl $SYS_futex, %eax
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ENTER_KERNEL
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@ -89,8 +90,8 @@ pthread_barrier_wait:
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/* Note: %esi is still zero. */
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movl %esi, %eax /* != PTHREAD_BARRIER_SERIAL_THREAD */
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popl %ebx
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popl %esi
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popl %ebx
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ret
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/* The necessary number of threads arrived. */
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@ -119,7 +120,6 @@ pthread_barrier_wait:
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5: orl $-1, %eax /* == PTHREAD_BARRIER_SERIAL_THREAD */
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popl %ebx
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popl %esi
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ret
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1: leal MUTEX(%ebx), %ecx
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@ -40,10 +40,9 @@
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.align 16
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__pthread_cond_broadcast:
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pushl %esi
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pushl %ebx
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movl 12(%esp), %ebx
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movl 8(%esp), %ebx
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/* Get internal lock. */
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movl $1, %eax
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@ -77,14 +76,12 @@ __pthread_cond_broadcast:
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/* Wake up all threads. */
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8: movl $FUTEX_WAKE, %ecx
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xorl %esi, %esi
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movl $SYS_futex, %eax
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movl $0x7fffffff, %edx
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ENTER_KERNEL
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xorl %eax, %eax
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popl %ebx
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popl %esi
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ret
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.align 16
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@ -95,7 +92,6 @@ __pthread_cond_broadcast:
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6: xorl %eax, %eax
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popl %ebx
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popl %esi
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ret
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||||
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||||
/* Initial locking failed. */
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||||
|
||||
@ -40,10 +40,9 @@
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.align 16
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__pthread_cond_signal:
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pushl %esi
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pushl %ebx
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|
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movl 12(%esp), %ebx
|
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movl 8(%esp), %ebx
|
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|
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/* Get internal lock. */
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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. */
|
||||
|
||||
@ -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
|
||||
|
||||
|
||||
@ -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
|
||||
|
||||
Loading…
Reference in New Issue
Block a user