2007-05-15 08:49:29 +02:00
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/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
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2003-01-29 00:52:31 +01:00
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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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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#include <shlib-compat.h>
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2003-03-12 11:28:07 +01:00
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#include <pthread-errnos.h>
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2003-01-29 00:52:31 +01:00
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#ifndef UP
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# define LOCK lock
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#else
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# define
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#endif
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#define SYS_futex 240
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#define FUTEX_WAKE 1
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.text
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.globl __new_sem_post
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.type __new_sem_post,@function
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.align 16
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__new_sem_post:
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pushl %ebx
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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.
2003-03-01 10:45:23 +01:00
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movl 8(%esp), %ebx
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2003-01-29 00:52:31 +01:00
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movl $1, %edx
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LOCK
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xaddl %edx, (%ebx)
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movl $SYS_futex, %eax
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movl $FUTEX_WAKE, %ecx
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2007-05-15 08:49:29 +02:00
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addl $1, %edx
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2003-01-29 00:52:31 +01:00
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ENTER_KERNEL
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testl %eax, %eax
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js 1f
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xorl %eax, %eax
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popl %ebx
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ret
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1:
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#ifdef PIC
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call __i686.get_pc_thunk.bx
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#else
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movl $4f, %ebx
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4:
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#endif
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addl $_GLOBAL_OFFSET_TABLE_, %ebx
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#if USE___THREAD
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2005-01-26 21:02:05 +01:00
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# ifdef NO_TLS_DIRECT_SEG_REFS
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movl errno@gotntpoff(%ebx), %edx
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addl %gs:0, %edx
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2003-01-29 00:52:31 +01:00
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movl $EINVAL, (%edx)
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2005-01-26 21:02:05 +01:00
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# else
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movl errno@gotntpoff(%ebx), %edx
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movl $EINVAL, %gs:(%edx)
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# endif
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2003-01-29 00:52:31 +01:00
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#else
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call __errno_location@plt
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2003-03-11 07:52:08 +01:00
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movl $EINVAL, (%eax)
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2003-01-29 00:52:31 +01:00
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#endif
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orl $-1, %eax
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popl %ebx
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ret
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.size __new_sem_post,.-__new_sem_post
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2003-03-13 02:06:30 +01:00
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versioned_symbol(libpthread, __new_sem_post, sem_post, GLIBC_2_1)
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2003-01-29 00:52:31 +01:00
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#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
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.global __old_sem_post
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__old_sem_post = __new_sem_post
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2003-03-13 02:06:30 +01:00
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compat_symbol(libpthread, __old_sem_post, sem_post, GLIBC_2_0)
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2003-01-29 00:52:31 +01:00
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#endif
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#ifdef PIC
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.section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
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.globl __i686.get_pc_thunk.bx
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.hidden __i686.get_pc_thunk.bx
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.type __i686.get_pc_thunk.bx,@function
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__i686.get_pc_thunk.bx:
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movl (%esp), %ebx;
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ret
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.size __i686.get_pc_thunk.bx,.-__i686.get_pc_thunk.bx
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#endif
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