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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.
This commit is contained in:
Ulrich Drepper
parent
4a99d1604d
commit
6cf26f4168
@ -1,5 +1,34 @@
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2003-01-28 Ulrich Drepper <drepper@redhat.com>
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2003-01-28 Ulrich Drepper <drepper@redhat.com>
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* Makefile (libpthread-routines): Remove lowlevelrwlock. Add
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pthread_rwlock_rdlock, pthread_rwlock_timedrdlock,
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pthread_rwlock_wrlock, pthread_rwlock_timedwrlock, and
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pthread_rwlock_unlock.
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* sysdeps/unix/sysv/linux/i386/i486/lowlevelrwlock.S: Removed
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* sysdeps/unix/sysv/linux/i386/i586/lowlevelrwlock.S: Removed
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* sysdeps/unix/sysv/linux/i386/i686/lowlevelrwlock.S: Removed
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* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S: New file.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S:
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New file.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S: New file.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S:
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New file.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S: New file.
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* sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_rdlock.S: New file.
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* sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedrdlock.S:
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New file.
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* sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_wrlock.S: New file.
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* sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedwrlock.S:
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New file.
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* sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_unlock.S: New file.
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* sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_rdlock.S: New file.
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* sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedrdlock.S:
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New file.
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* sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_wrlock.S: New file.
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* sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedwrlock.S:
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New file.
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* sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_unlock.S: New file.
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* Makefile (libpthread-routines): Remove lowlevelcond and
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* Makefile (libpthread-routines): Remove lowlevelcond and
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lowlevelsem. Add sem_wait, sem_trywait, sem_timedwait, sem_post,
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lowlevelsem. Add sem_wait, sem_trywait, sem_timedwait, sem_post,
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pthread_cond_wait, pthread_cond_timedwait, pthread_cond_signal,
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pthread_cond_wait, pthread_cond_timedwait, pthread_cond_signal,
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@ -58,7 +58,10 @@ libpthread-routines = init events version \
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pthread_mutexattr_setpshared \
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pthread_mutexattr_setpshared \
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pthread_mutexattr_gettype pthread_mutexattr_settype \
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pthread_mutexattr_gettype pthread_mutexattr_settype \
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pthread_rwlock_init pthread_rwlock_destroy \
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pthread_rwlock_init pthread_rwlock_destroy \
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pthread_rwlock_rdlock pthread_rwlock_timedrdlock \
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pthread_rwlock_wrlock pthread_rwlock_timedwrlock \
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pthread_rwlock_tryrdlock pthread_rwlock_trywrlock \
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pthread_rwlock_tryrdlock pthread_rwlock_trywrlock \
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pthread_rwlock_unlock \
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pthread_rwlockattr_init pthread_rwlockattr_destroy \
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pthread_rwlockattr_init pthread_rwlockattr_destroy \
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pthread_rwlockattr_getpshared \
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pthread_rwlockattr_getpshared \
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pthread_rwlockattr_setpshared \
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pthread_rwlockattr_setpshared \
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@ -96,7 +99,7 @@ libpthread-routines = init events version \
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cleanup cleanup_defer \
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cleanup cleanup_defer \
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pt-longjmp \
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pt-longjmp \
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cancellation \
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cancellation \
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lowlevellock lowlevelmutex lowlevelrwlock \
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lowlevellock lowlevelmutex \
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pt-vfork \
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pt-vfork \
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ptw-write ptw-read ptw-close ptw-fcntl ptw-accept \
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ptw-write ptw-read ptw-close ptw-fcntl ptw-accept \
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ptw-connect ptw-recv ptw-recvfrom ptw-recvmsg ptw-send \
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ptw-connect ptw-recv ptw-recvfrom ptw-recvmsg ptw-send \
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@ -1,668 +0,0 @@
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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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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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#ifdef UP
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# define LOCK
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#else
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# define LOCK lock
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#endif
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#define SYS_gettimeofday __NR_gettimeofday
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#define SYS_futex 240
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#define FUTEX_WAIT 0
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#define FUTEX_WAKE 1
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#define ETIMEDOUT 110
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#define cond_lock 0
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#define total_seq 4
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#define wakeup_seq 12
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#define woken_seq 20
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.text
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.align 16
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.type condvar_cleanup, @function
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condvar_cleanup:
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pushl %ebx
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movl 8(%esp), %ebx
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#if cond_lock != 0
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addl $cond_lock, %ebx
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#endif
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/* Get internal lock. */
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movl $1, %eax
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LOCK
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#if cond_lock == 0
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xaddl %eax, (%ebx)
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#else
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xaddl %eax, cond_lock(%ebx)
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#endif
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testl %eax, %eax
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je 1f
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#if cond_lock == 0
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movl %ebx, %ecx
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#else
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leal cond_lock(%ebx), %ecx
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#endif
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call __lll_mutex_lock_wait
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1: addl $1, wakeup_seq(%ebx)
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adcl $0, wakeup_seq+4(%ebx)
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addl $1, woken_seq(%ebx)
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adcl $0, woken_seq+4(%ebx)
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LOCK
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decl (%ebx)
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je 2f
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#if cond_lock == 0
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movl %ebx, %eax
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#else
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leal cond_lock(%ebx), %eax
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#endif
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call __lll_mutex_unlock_wake
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2: popl %ebx
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ret
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.size condvar_cleanup, .-condvar_cleanup
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/* int pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex) */
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.globl __pthread_cond_wait
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.type __pthread_cond_wait, @function
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.align 16
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__pthread_cond_wait:
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pushl %edi
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pushl %esi
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pushl %ebx
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xorl %esi, %esi
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movl 16(%esp), %ebx
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#if cond_lock != 0
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addl $cond_lock, %ebx
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#endif
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/* Get internal lock. */
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movl $1, %eax
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LOCK
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#if cond_lock == 0
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xaddl %eax, (%ebx)
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#else
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xaddl %eax, cond_lock(%ebx)
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#endif
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testl %eax, %eax
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jne 1f
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/* Unlock the mutex. */
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2: pushl 20(%esp)
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call __pthread_mutex_unlock_internal
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addl $1, total_seq(%ebx)
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adcl $0, total_seq+4(%ebx)
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/* Install cancellation handler. */
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#ifdef PIC
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call __i686.get_pc_thunk.cx
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addl $_GLOBAL_OFFSET_TABLE_, %ecx
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leal condvar_cleanup@GOTOFF(%ecx), %eax
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#else
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leal condvar_cleanup, %eax
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#endif
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subl $24, %esp
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leal 12(%esp), %edx
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movl %ebx, 8(%esp)
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movl %eax, 4(%esp)
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movl %edx, (%esp)
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call __pthread_cleanup_push
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/* Get and store current wakeup_seq value. */
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movl wakeup_seq(%ebx), %edi
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movl wakeup_seq+4(%ebx), %edx
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movl %edi, 4(%esp)
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movl %edx, 8(%esp)
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/* Unlock. */
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8: LOCK
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#if cond_lock == 0
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decl (%ebx)
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#else
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decl cond_lock(%ebx)
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#endif
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jne 3f
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4: call __pthread_enable_asynccancel
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movl %eax, (%esp)
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movl %esi, %ecx /* movl $FUTEX_WAIT, %ecx */
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movl %edi, %edx
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addl $wakeup_seq-cond_lock, %ebx
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movl $SYS_futex, %eax
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ENTER_KERNEL
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subl $wakeup_seq-cond_lock, %ebx
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call __pthread_disable_asynccancel
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/* Lock. */
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movl $1, %eax
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LOCK
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#if cond_lock == 0
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xaddl %eax, (%ebx)
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#else
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xaddl %eax, cond_lock(%ebx)
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#endif
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testl %eax, %eax
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jne 5f
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6: movl woken_seq(%ebx), %eax
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movl woken_seq+4(%ebx), %ecx
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movl wakeup_seq(%ebx), %edi
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movl wakeup_seq+4(%ebx), %edx
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cmpl 8(%esp), %ecx
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ja 7f
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jb 8b
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cmpl 4(%esp), %eax
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jb 8b
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7: cmpl %ecx, %edx
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ja 9f
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jb 8b
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cmp %eax, %edi
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jna 8b
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9: addl $1, woken_seq(%ebx)
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adcl $0, woken_seq+4(%ebx)
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LOCK
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#if cond_lock == 0
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decl (%ebx)
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#else
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decl cond_lock(%ebx)
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#endif
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jne 10f
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/* Remove cancellation handler. */
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11: leal 12(%esp), %edx
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movl $0, 4(%esp)
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movl %edx, (%esp)
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call __pthread_cleanup_pop
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movl 48(%esp), %eax
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movl %eax, (%esp)
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call __pthread_mutex_lock_internal
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addl $28, %esp
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popl %ebx
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popl %esi
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popl %edi
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/* We return the result of the mutex_lock operation. */
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ret
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/* Initial locking failed. */
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1:
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#if cond_lock == 0
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movl %ebx, %ecx
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#else
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leal cond_lock(%ebx), %ecx
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#endif
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call __lll_mutex_lock_wait
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jmp 2b
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/* Unlock in loop requires waekup. */
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3:
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#if cond_lock == 0
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movl %ebx, %eax
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#else
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leal cond_lock(%ebx), %eax
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#endif
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call __lll_mutex_unlock_wake
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jmp 4b
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/* Locking in loop failed. */
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5:
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#if cond_lock == 0
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movl %ebx, %ecx
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#else
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leal cond_lock(%ebx), %ecx
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#endif
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call __lll_mutex_lock_wait
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jmp 6b
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/* Unlock after loop requires waekup. */
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10:
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#if cond_lock == 0
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movl %ebx, %eax
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#else
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leal cond_lock(%ebx), %eax
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#endif
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call __lll_mutex_unlock_wake
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jmp 11b
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.size __pthread_cond_wait, .-__pthread_cond_wait
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versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait,
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GLIBC_2_3_2)
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/* int pthread_cond_timedwait (pthread_cond_t *cond, pthread_mutex_t *mutex,
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const struct timespec *abstime) */
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.globl __pthread_cond_timedwait
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.type __pthread_cond_timedwait, @function
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.align 16
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__pthread_cond_timedwait:
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pushl %ebp
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pushl %edi
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pushl %esi
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pushl %ebx
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movl 20(%esp), %ebx
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|
||||||
movl 28(%esp), %ebp
|
|
||||||
#if cond_lock != 0
|
|
||||||
addl $cond_lock, %ebx
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/* Get internal lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if cond_lock == 0
|
|
||||||
xaddl %eax, (%ebx)
|
|
||||||
#else
|
|
||||||
xaddl %eax, cond_lock(%ebx)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 1f
|
|
||||||
|
|
||||||
/* Unlock the mutex. */
|
|
||||||
2: pushl 24(%esp)
|
|
||||||
call __pthread_mutex_unlock_internal
|
|
||||||
|
|
||||||
addl $1, total_seq(%ebx)
|
|
||||||
adcl $0, total_seq+4(%ebx)
|
|
||||||
|
|
||||||
/* Install cancellation handler. */
|
|
||||||
#ifdef PIC
|
|
||||||
call __i686.get_pc_thunk.cx
|
|
||||||
addl $_GLOBAL_OFFSET_TABLE_, %ecx
|
|
||||||
leal condvar_cleanup@GOTOFF(%ecx), %eax
|
|
||||||
#else
|
|
||||||
leal condvar_cleanup, %eax
|
|
||||||
#endif
|
|
||||||
subl $32, %esp
|
|
||||||
leal 16(%esp), %edx
|
|
||||||
movl %ebx, 8(%esp)
|
|
||||||
movl %eax, 4(%esp)
|
|
||||||
movl %edx, (%esp)
|
|
||||||
call __pthread_cleanup_push
|
|
||||||
|
|
||||||
/* Get and store current wakeup_seq value. */
|
|
||||||
movl wakeup_seq(%ebx), %edi
|
|
||||||
movl wakeup_seq+4(%ebx), %edx
|
|
||||||
movl %edi, 12(%esp)
|
|
||||||
movl %edx, 16(%esp)
|
|
||||||
|
|
||||||
/* Unlock. */
|
|
||||||
8: LOCK
|
|
||||||
#if cond_lock == 0
|
|
||||||
decl (%ebx)
|
|
||||||
#else
|
|
||||||
decl cond_lock(%ebx)
|
|
||||||
#endif
|
|
||||||
jne 3f
|
|
||||||
|
|
||||||
4: call __pthread_enable_asynccancel
|
|
||||||
movl %eax, (%esp)
|
|
||||||
|
|
||||||
/* Get the current time. */
|
|
||||||
movl %ebx, %edx
|
|
||||||
leal 4(%esp), %ebx
|
|
||||||
xorl %ecx, %ecx
|
|
||||||
movl $SYS_gettimeofday, %eax
|
|
||||||
ENTER_KERNEL
|
|
||||||
movl %edx, %ebx
|
|
||||||
|
|
||||||
/* Compute relative timeout. */
|
|
||||||
movl 8(%esp), %eax
|
|
||||||
movl $1000, %edx
|
|
||||||
mul %edx /* Milli seconds to nano seconds. */
|
|
||||||
movl (%ebp), %ecx
|
|
||||||
movl 4(%ebp), %edx
|
|
||||||
subl 4(%esp), %ecx
|
|
||||||
subl %eax, %edx
|
|
||||||
jns 12f
|
|
||||||
addl $1000000000, %edx
|
|
||||||
decl %ecx
|
|
||||||
12: testl %ecx, %ecx
|
|
||||||
js 13f
|
|
||||||
|
|
||||||
/* Store relative timeout. */
|
|
||||||
movl %ecx, 4(%esp)
|
|
||||||
movl %edx, 8(%esp)
|
|
||||||
leal 4(%esp), %esi
|
|
||||||
xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */
|
|
||||||
movl %edi, %edx
|
|
||||||
addl $wakeup_seq-cond_lock, %ebx
|
|
||||||
movl $SYS_futex, %eax
|
|
||||||
ENTER_KERNEL
|
|
||||||
subl $wakeup_seq-cond_lock, %ebx
|
|
||||||
movl %eax, %esi
|
|
||||||
|
|
||||||
call __pthread_disable_asynccancel
|
|
||||||
|
|
||||||
/* Lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if cond_lock == 0
|
|
||||||
xaddl %eax, (%ebx)
|
|
||||||
#else
|
|
||||||
xaddl %eax, cond_lock(%ebx)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 5f
|
|
||||||
|
|
||||||
6: movl woken_seq(%ebx), %eax
|
|
||||||
movl woken_seq+4(%ebx), %ecx
|
|
||||||
|
|
||||||
movl wakeup_seq(%ebx), %edi
|
|
||||||
movl wakeup_seq+4(%ebx), %edx
|
|
||||||
|
|
||||||
cmpl 16(%esp), %ecx
|
|
||||||
ja 7f
|
|
||||||
jb 15f
|
|
||||||
cmpl 12(%esp), %eax
|
|
||||||
jb 15f
|
|
||||||
|
|
||||||
7: cmpl %ecx, %edx
|
|
||||||
ja 9f
|
|
||||||
jb 15f
|
|
||||||
cmp %eax, %edi
|
|
||||||
ja 9f
|
|
||||||
|
|
||||||
15: cmpl $-ETIMEDOUT, %esi
|
|
||||||
jne 8b
|
|
||||||
|
|
||||||
13: addl $1, wakeup_seq(%ebx)
|
|
||||||
adcl $0, wakeup_seq+4(%ebx)
|
|
||||||
movl $ETIMEDOUT, %esi
|
|
||||||
jmp 14f
|
|
||||||
|
|
||||||
9: xorl %esi, %esi
|
|
||||||
14: addl $1, woken_seq(%ebx)
|
|
||||||
adcl $0, woken_seq+4(%ebx)
|
|
||||||
|
|
||||||
LOCK
|
|
||||||
#if cond_lock == 0
|
|
||||||
decl (%ebx)
|
|
||||||
#else
|
|
||||||
decl cond_lock(%ebx)
|
|
||||||
#endif
|
|
||||||
jne 10f
|
|
||||||
|
|
||||||
/* Remove cancellation handler. */
|
|
||||||
11: leal 20(%esp), %edx
|
|
||||||
movl $0, 4(%esp)
|
|
||||||
movl %edx, (%esp)
|
|
||||||
call __pthread_cleanup_pop
|
|
||||||
|
|
||||||
movl 60(%esp), %ecx
|
|
||||||
movl %ecx, (%esp)
|
|
||||||
call __pthread_mutex_lock_internal
|
|
||||||
addl $36, %esp
|
|
||||||
|
|
||||||
movl %esi, %eax
|
|
||||||
|
|
||||||
popl %ebx
|
|
||||||
popl %esi
|
|
||||||
popl %edi
|
|
||||||
popl %ebp
|
|
||||||
|
|
||||||
/* We return the result of the mutex_lock operation. */
|
|
||||||
ret
|
|
||||||
|
|
||||||
/* Initial locking failed. */
|
|
||||||
1:
|
|
||||||
#if cond_lock == 0
|
|
||||||
movl %ebx, %ecx
|
|
||||||
#else
|
|
||||||
leal cond_lock(%ebx), %ecx
|
|
||||||
#endif
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 2b
|
|
||||||
|
|
||||||
/* Unlock in loop requires waekup. */
|
|
||||||
3:
|
|
||||||
#if cond_lock == 0
|
|
||||||
movl %ebx, %eax
|
|
||||||
#else
|
|
||||||
leal cond_lock(%ebx), %eax
|
|
||||||
#endif
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 4b
|
|
||||||
|
|
||||||
/* Locking in loop failed. */
|
|
||||||
5:
|
|
||||||
#if cond_lock == 0
|
|
||||||
movl %ebx, %ecx
|
|
||||||
#else
|
|
||||||
leal cond_lock(%ebx), %ecx
|
|
||||||
#endif
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 6b
|
|
||||||
|
|
||||||
/* Unlock after loop requires waekup. */
|
|
||||||
10:
|
|
||||||
#if cond_lock == 0
|
|
||||||
movl %ebx, %eax
|
|
||||||
#else
|
|
||||||
leal cond_lock(%ebx), %eax
|
|
||||||
#endif
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 11b
|
|
||||||
.size __pthread_cond_timedwait, .-__pthread_cond_timedwait
|
|
||||||
versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait,
|
|
||||||
GLIBC_2_3_2)
|
|
||||||
|
|
||||||
|
|
||||||
/* int pthread_cond_signal (pthread_cond_t *cond) */
|
|
||||||
.globl __pthread_cond_signal
|
|
||||||
.type __pthread_cond_signal, @function
|
|
||||||
.align 16
|
|
||||||
__pthread_cond_signal:
|
|
||||||
|
|
||||||
pushl %esi
|
|
||||||
pushl %ebx
|
|
||||||
#if cond_lock != 0
|
|
||||||
addl $cond_lock, %ebx
|
|
||||||
#endif
|
|
||||||
|
|
||||||
movl 12(%esp), %ebx
|
|
||||||
|
|
||||||
/* Get internal lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if cond_lock == 0
|
|
||||||
xaddl %eax, (%ebx)
|
|
||||||
#else
|
|
||||||
xaddl %eax, cond_lock(%ebx)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 1f
|
|
||||||
|
|
||||||
2: movl total_seq+4(%ebx), %eax
|
|
||||||
movl total_seq(%ebx), %ecx
|
|
||||||
cmpl wakeup_seq+4(%ebx), %eax
|
|
||||||
ja 3f
|
|
||||||
jb 4f
|
|
||||||
cmpl wakeup_seq(%ebx), %ecx
|
|
||||||
jbe 4f
|
|
||||||
|
|
||||||
/* Bump the wakeup number. */
|
|
||||||
3: addl $1, wakeup_seq(%ebx)
|
|
||||||
adcl $0, wakeup_seq+4(%ebx)
|
|
||||||
|
|
||||||
/* Wake up one thread. */
|
|
||||||
addl $wakeup_seq-cond_lock, %ebx
|
|
||||||
movl $FUTEX_WAKE, %ecx
|
|
||||||
xorl %esi, %esi
|
|
||||||
movl $SYS_futex, %eax
|
|
||||||
movl %ecx, %edx /* movl $1, %edx */
|
|
||||||
ENTER_KERNEL
|
|
||||||
|
|
||||||
subl $wakeup_seq-cond_lock, %ebx
|
|
||||||
|
|
||||||
/* Unlock. */
|
|
||||||
4: LOCK
|
|
||||||
#if cond_lock == 0
|
|
||||||
decl (%ebx)
|
|
||||||
#else
|
|
||||||
decl cond_lock(%ebx)
|
|
||||||
#endif
|
|
||||||
jne 5f
|
|
||||||
|
|
||||||
6: xorl %eax, %eax
|
|
||||||
popl %ebx
|
|
||||||
popl %esi
|
|
||||||
ret
|
|
||||||
|
|
||||||
/* Initial locking failed. */
|
|
||||||
1:
|
|
||||||
#if cond_lock == 0
|
|
||||||
movl %ebx, %ecx
|
|
||||||
#else
|
|
||||||
leal cond_lock(%ebx), %ecx
|
|
||||||
#endif
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 2b
|
|
||||||
|
|
||||||
/* Unlock in loop requires waekup. */
|
|
||||||
5:
|
|
||||||
#if cond_lock == 0
|
|
||||||
movl %ebx, %eax
|
|
||||||
#else
|
|
||||||
leal cond_lock(%ebx), %eax
|
|
||||||
#endif
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 6b
|
|
||||||
.size __pthread_cond_signal, .-__pthread_cond_signal
|
|
||||||
versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal,
|
|
||||||
GLIBC_2_3_2)
|
|
||||||
|
|
||||||
|
|
||||||
/* int pthread_cond_broadcast (pthread_cond_t *cond) */
|
|
||||||
.globl __pthread_cond_broadcast
|
|
||||||
.type __pthread_cond_broadcast, @function
|
|
||||||
.align 16
|
|
||||||
__pthread_cond_broadcast:
|
|
||||||
|
|
||||||
pushl %esi
|
|
||||||
pushl %ebx
|
|
||||||
|
|
||||||
movl 12(%esp), %ebx
|
|
||||||
#if cond_lock != 0
|
|
||||||
addl $cond_lock, %ebx
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/* Get internal lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if cond_lock == 0
|
|
||||||
xaddl %eax, (%ebx)
|
|
||||||
#else
|
|
||||||
xaddl %eax, cond_lock(%ebx)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 1f
|
|
||||||
|
|
||||||
2: movl total_seq+4(%ebx), %eax
|
|
||||||
movl total_seq(%ebx), %ecx
|
|
||||||
cmpl wakeup_seq+4(%ebx), %eax
|
|
||||||
ja 3f
|
|
||||||
jb 4f
|
|
||||||
cmpl wakeup_seq(%ebx), %ecx
|
|
||||||
jna 4f
|
|
||||||
|
|
||||||
/* Case all currently waiting threads to wake up. */
|
|
||||||
3: movl %ecx, wakeup_seq(%ebx)
|
|
||||||
movl %eax, wakeup_seq+4(%ebx)
|
|
||||||
|
|
||||||
/* Wake up all threads. */
|
|
||||||
addl $wakeup_seq-cond_lock, %ebx
|
|
||||||
movl $FUTEX_WAKE, %ecx
|
|
||||||
xorl %esi, %esi
|
|
||||||
movl $SYS_futex, %eax
|
|
||||||
movl $0x7fffffff, %edx
|
|
||||||
ENTER_KERNEL
|
|
||||||
|
|
||||||
subl $wakeup_seq-cond_lock, %ebx
|
|
||||||
|
|
||||||
/* Unlock. */
|
|
||||||
4: LOCK
|
|
||||||
#if cond_lock == 0
|
|
||||||
decl (%ebx)
|
|
||||||
#else
|
|
||||||
decl cond_lock(%ebx)
|
|
||||||
#endif
|
|
||||||
jne 5f
|
|
||||||
|
|
||||||
6: xorl %eax, %eax
|
|
||||||
popl %ebx
|
|
||||||
popl %esi
|
|
||||||
ret
|
|
||||||
|
|
||||||
/* Initial locking failed. */
|
|
||||||
1:
|
|
||||||
#if cond_lock == 0
|
|
||||||
movl %ebx, %ecx
|
|
||||||
#else
|
|
||||||
leal cond_lock(%ebx), %ecx
|
|
||||||
#endif
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 2b
|
|
||||||
|
|
||||||
/* Unlock in loop requires waekup. */
|
|
||||||
5:
|
|
||||||
#if cond_lock == 0
|
|
||||||
movl %ebx, %eax
|
|
||||||
#else
|
|
||||||
leal cond_lock(%ebx), %eax
|
|
||||||
#endif
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 6b
|
|
||||||
.size __pthread_cond_broadcast, .-__pthread_cond_broadcast
|
|
||||||
versioned_symbol (libpthread, __pthread_cond_broadcast, pthread_cond_broadcast,
|
|
||||||
GLIBC_2_3_2)
|
|
||||||
|
|
||||||
|
|
||||||
#ifdef PIC
|
|
||||||
.section .gnu.linkonce.t.__i686.get_pc_thunk.cx,"ax",@progbits
|
|
||||||
.globl __i686.get_pc_thunk.cx
|
|
||||||
.hidden __i686.get_pc_thunk.cx
|
|
||||||
.type __i686.get_pc_thunk.cx,@function
|
|
||||||
__i686.get_pc_thunk.cx:
|
|
||||||
movl (%esp), %ecx;
|
|
||||||
ret
|
|
||||||
.size __i686.get_pc_thunk.cx,.-__i686.get_pc_thunk.cx
|
|
||||||
#endif
|
|
||||||
@ -1,654 +0,0 @@
|
|||||||
/* 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>
|
|
||||||
|
|
||||||
.text
|
|
||||||
|
|
||||||
#define SYS_gettimeofday __NR_gettimeofday
|
|
||||||
#define SYS_futex 240
|
|
||||||
#define FUTEX_WAIT 0
|
|
||||||
#define FUTEX_WAKE 1
|
|
||||||
|
|
||||||
#define EAGAIN 11
|
|
||||||
#define EDEADLK 35
|
|
||||||
#define ETIMEDOUT 110
|
|
||||||
|
|
||||||
/* Offsets in the pthread_rwlock_t structure. */
|
|
||||||
#define MUTEX 0
|
|
||||||
#define NR_READERS 4
|
|
||||||
#define READERS_WAKEUP 8
|
|
||||||
#define WRITERS_WAKEUP 12
|
|
||||||
#define READERS_QUEUED 16
|
|
||||||
#define WRITERS_QUEUED 20
|
|
||||||
#define FLAGS 24
|
|
||||||
#define WRITER 28
|
|
||||||
|
|
||||||
#ifndef UP
|
|
||||||
# define LOCK lock
|
|
||||||
#else
|
|
||||||
# define LOCK
|
|
||||||
#endif
|
|
||||||
|
|
||||||
|
|
||||||
.globl __pthread_rwlock_rdlock
|
|
||||||
.type __pthread_rwlock_rdlock,@function
|
|
||||||
.align 16
|
|
||||||
__pthread_rwlock_rdlock:
|
|
||||||
pushl %esi
|
|
||||||
pushl %ebx
|
|
||||||
|
|
||||||
xorl %esi, %esi
|
|
||||||
xorl %edx, %edx
|
|
||||||
movl 12(%esp), %ebx
|
|
||||||
|
|
||||||
/* Get the lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
xaddl %eax, (%ebx)
|
|
||||||
#else
|
|
||||||
xaddl %eax, MUTEX(%ebx)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 1f
|
|
||||||
|
|
||||||
2: movl WRITER(%ebx), %eax
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 14f
|
|
||||||
cmp $0, WRITERS_QUEUED(%ebx)
|
|
||||||
je 5f
|
|
||||||
cmpl $0, FLAGS(%ebx)
|
|
||||||
je 5f
|
|
||||||
|
|
||||||
3: incl READERS_QUEUED(%ebx)
|
|
||||||
je 4f
|
|
||||||
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
decl (%ebx)
|
|
||||||
#else
|
|
||||||
decl MUTEX(%ebx)
|
|
||||||
#endif
|
|
||||||
jne 10f
|
|
||||||
|
|
||||||
11: addl $READERS_WAKEUP-MUTEX, %ebx
|
|
||||||
movl %esi, %ecx /* movl $FUTEX_WAIT, %ecx */
|
|
||||||
movl $SYS_futex, %eax
|
|
||||||
ENTER_KERNEL
|
|
||||||
|
|
||||||
subl $READERS_WAKEUP-MUTEX, %ebx
|
|
||||||
|
|
||||||
/* Reget the lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
xaddl %eax, (%ebx)
|
|
||||||
#else
|
|
||||||
xaddl %eax, MUTEX(%ebx)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 12f
|
|
||||||
|
|
||||||
13: decl READERS_QUEUED(%ebx)
|
|
||||||
jne 2b
|
|
||||||
movl $0, READERS_WAKEUP(%ebx)
|
|
||||||
jmp 2b
|
|
||||||
|
|
||||||
5: xorl %ecx, %ecx
|
|
||||||
incl NR_READERS(%ebx)
|
|
||||||
je 8f
|
|
||||||
9: LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
decl (%ebx)
|
|
||||||
#else
|
|
||||||
decl MUTEX(%ebx)
|
|
||||||
#endif
|
|
||||||
jne 6f
|
|
||||||
7:
|
|
||||||
|
|
||||||
movl %ecx, %eax
|
|
||||||
popl %ebx
|
|
||||||
popl %esi
|
|
||||||
ret
|
|
||||||
|
|
||||||
1: movl %ebx, %ecx
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 2b
|
|
||||||
|
|
||||||
14: cmpl %gs:8, %eax
|
|
||||||
jne 3b
|
|
||||||
/* Deadlock detected. */
|
|
||||||
movl $EDEADLK, %ecx
|
|
||||||
jmp 9b
|
|
||||||
|
|
||||||
6: movl %ebx, %eax
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 7b
|
|
||||||
|
|
||||||
/* Overflow. */
|
|
||||||
8: decl NR_READERS(%ebx)
|
|
||||||
movl $EAGAIN, %ecx
|
|
||||||
jmp 9b
|
|
||||||
|
|
||||||
/* Overflow. */
|
|
||||||
4: decl READERS_QUEUED(%ebx)
|
|
||||||
movl $EAGAIN, %ecx
|
|
||||||
jmp 9b
|
|
||||||
|
|
||||||
10: movl %ebx, %eax
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 11b
|
|
||||||
|
|
||||||
12: movl %ebx, %ecx
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 13b
|
|
||||||
.size __pthread_rwlock_rdlock,.-__pthread_rwlock_rdlock
|
|
||||||
|
|
||||||
.globl pthread_rwlock_rdlock
|
|
||||||
pthread_rwlock_rdlock = __pthread_rwlock_rdlock
|
|
||||||
|
|
||||||
.globl __pthread_rwlock_rdlock_internal
|
|
||||||
__pthread_rwlock_rdlock_internal = __pthread_rwlock_rdlock
|
|
||||||
|
|
||||||
|
|
||||||
.globl pthread_rwlock_timedrdlock
|
|
||||||
.type pthread_rwlock_timedrdlock,@function
|
|
||||||
.align 16
|
|
||||||
pthread_rwlock_timedrdlock:
|
|
||||||
pushl %esi
|
|
||||||
pushl %edi
|
|
||||||
pushl %ebx
|
|
||||||
pushl %ebp
|
|
||||||
subl $8, %esp
|
|
||||||
|
|
||||||
movl 28(%esp), %ebp
|
|
||||||
movl 32(%esp), %edi
|
|
||||||
|
|
||||||
/* Get the lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
xaddl %eax, (%ebp)
|
|
||||||
#else
|
|
||||||
xaddl %eax, MUTEX(%ebp)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 1f
|
|
||||||
|
|
||||||
2: movl WRITER(%ebp), %eax
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 14f
|
|
||||||
cmp $0, WRITERS_QUEUED(%ebp)
|
|
||||||
je 5f
|
|
||||||
cmpl $0, FLAGS(%ebp)
|
|
||||||
je 5f
|
|
||||||
|
|
||||||
3: incl READERS_QUEUED(%ebp)
|
|
||||||
je 4f
|
|
||||||
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
decl (%ebp)
|
|
||||||
#else
|
|
||||||
decl MUTEX(%ebp)
|
|
||||||
#endif
|
|
||||||
jne 10f
|
|
||||||
|
|
||||||
/* Get current time. */
|
|
||||||
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 15f
|
|
||||||
addl $1000000000, %edx
|
|
||||||
decl %ecx
|
|
||||||
15: testl %ecx, %ecx
|
|
||||||
js 16f /* Time is already up. */
|
|
||||||
|
|
||||||
/* Futex call. */
|
|
||||||
movl %ecx, (%esp) /* Store relative timeout. */
|
|
||||||
movl %edx, 4(%esp)
|
|
||||||
xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */
|
|
||||||
movl %esp, %esi
|
|
||||||
movl %ecx, %edx
|
|
||||||
leal READERS_WAKEUP(%ebp), %ebx
|
|
||||||
movl $SYS_futex, %eax
|
|
||||||
ENTER_KERNEL
|
|
||||||
movl %eax, %edx
|
|
||||||
17:
|
|
||||||
|
|
||||||
/* Reget the lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
xaddl %eax, (%ebp)
|
|
||||||
#else
|
|
||||||
xaddl %eax, MUTEX(%ebp)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 12f
|
|
||||||
|
|
||||||
13: cmpl $-ETIMEDOUT, %ecx
|
|
||||||
je 18f
|
|
||||||
decl READERS_QUEUED(%ebp)
|
|
||||||
jne 2b
|
|
||||||
movl $0, READERS_WAKEUP(%ebp)
|
|
||||||
jmp 2b
|
|
||||||
|
|
||||||
|
|
||||||
5: xorl %ecx, %ecx
|
|
||||||
incl NR_READERS(%ebp)
|
|
||||||
je 8f
|
|
||||||
9: LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
decl (%ebp)
|
|
||||||
#else
|
|
||||||
decl MUTEX(%ebp)
|
|
||||||
#endif
|
|
||||||
jne 6f
|
|
||||||
|
|
||||||
7: movl %ecx, %eax
|
|
||||||
|
|
||||||
addl $8, %esp
|
|
||||||
popl %ebp
|
|
||||||
popl %ebx
|
|
||||||
popl %edi
|
|
||||||
popl %esi
|
|
||||||
ret
|
|
||||||
|
|
||||||
1: movl %ebp, %ecx
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 2b
|
|
||||||
|
|
||||||
14: cmpl %gs:8, %eax
|
|
||||||
jne 3b
|
|
||||||
movl $EDEADLK, %ecx
|
|
||||||
jmp 9b
|
|
||||||
|
|
||||||
6: movl %ebp, %eax
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 7b
|
|
||||||
|
|
||||||
/* Overflow. */
|
|
||||||
8: decl NR_READERS(%ebp)
|
|
||||||
movl $EAGAIN, %ecx
|
|
||||||
jmp 9b
|
|
||||||
|
|
||||||
/* Overflow. */
|
|
||||||
4: decl READERS_QUEUED(%ebp)
|
|
||||||
movl $EAGAIN, %ecx
|
|
||||||
jmp 9b
|
|
||||||
|
|
||||||
10: movl %ebp, %eax
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 11b
|
|
||||||
|
|
||||||
12: movl %ebx, %ecx
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 13b
|
|
||||||
|
|
||||||
16: movl $-ETIMEDOUT, %ecx
|
|
||||||
jmp 17b
|
|
||||||
|
|
||||||
18: movl $ETIMEDOUT, %ecx
|
|
||||||
jmp 9b
|
|
||||||
.size pthread_rwlock_timedrdlock,.-pthread_rwlock_timedrdlock
|
|
||||||
|
|
||||||
|
|
||||||
.globl __pthread_rwlock_wrlock
|
|
||||||
.type __pthread_rwlock_wrlock,@function
|
|
||||||
.align 16
|
|
||||||
__pthread_rwlock_wrlock:
|
|
||||||
pushl %esi
|
|
||||||
pushl %ebx
|
|
||||||
|
|
||||||
xorl %esi, %esi
|
|
||||||
xorl %edx, %edx
|
|
||||||
movl 12(%esp), %ebx
|
|
||||||
|
|
||||||
/* Get the lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
xaddl %eax, (%ebx)
|
|
||||||
#else
|
|
||||||
xaddl %eax, MUTEX(%ebx)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 1f
|
|
||||||
|
|
||||||
2: movl WRITER(%ebx), %eax
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 14f
|
|
||||||
cmp $0, NR_READERS(%ebx)
|
|
||||||
je 5f
|
|
||||||
|
|
||||||
3: incl WRITERS_QUEUED(%ebx)
|
|
||||||
je 4f
|
|
||||||
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
decl (%ebx)
|
|
||||||
#else
|
|
||||||
decl MUTEX(%ebx)
|
|
||||||
#endif
|
|
||||||
jne 10f
|
|
||||||
|
|
||||||
11: addl $WRITERS_WAKEUP-MUTEX, %ebx
|
|
||||||
movl %esi, %ecx /* movl $FUTEX_WAIT, %ecx */
|
|
||||||
movl $SYS_futex, %eax
|
|
||||||
ENTER_KERNEL
|
|
||||||
|
|
||||||
subl $WRITERS_WAKEUP-MUTEX, %ebx
|
|
||||||
|
|
||||||
/* Reget the lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
xaddl %eax, (%ebx)
|
|
||||||
#else
|
|
||||||
xaddl %eax, MUTEX(%ebx)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 12f
|
|
||||||
|
|
||||||
13: decl WRITERS_QUEUED(%ebx)
|
|
||||||
movl $0, WRITERS_WAKEUP(%ebx)
|
|
||||||
jmp 2b
|
|
||||||
|
|
||||||
5: xorl %ecx, %ecx
|
|
||||||
movl %gs:8, %eax
|
|
||||||
movl %eax, WRITER(%ebx)
|
|
||||||
9: LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
decl (%ebx)
|
|
||||||
#else
|
|
||||||
decl MUTEX(%ebx)
|
|
||||||
#endif
|
|
||||||
jne 6f
|
|
||||||
7:
|
|
||||||
|
|
||||||
movl %ecx, %eax
|
|
||||||
popl %ebx
|
|
||||||
popl %esi
|
|
||||||
ret
|
|
||||||
|
|
||||||
1: movl %ebx, %ecx
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 2b
|
|
||||||
|
|
||||||
14: cmpl %gs:8, %eax
|
|
||||||
jne 3b
|
|
||||||
movl $EDEADLK, %ecx
|
|
||||||
jmp 9b
|
|
||||||
|
|
||||||
6: movl %ebx, %eax
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 7b
|
|
||||||
|
|
||||||
4: decl WRITERS_QUEUED(%ebx)
|
|
||||||
movl $EAGAIN, %ecx
|
|
||||||
jmp 9b
|
|
||||||
|
|
||||||
10: movl %ebx, %eax
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 11b
|
|
||||||
|
|
||||||
12: movl %ebx, %ecx
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 13b
|
|
||||||
.size __pthread_rwlock_wrlock,.-__pthread_rwlock_wrlock
|
|
||||||
|
|
||||||
.globl pthread_rwlock_wrlock
|
|
||||||
pthread_rwlock_wrlock = __pthread_rwlock_wrlock
|
|
||||||
|
|
||||||
.globl __pthread_rwlock_wrlock_internal
|
|
||||||
__pthread_rwlock_wrlock_internal = __pthread_rwlock_wrlock
|
|
||||||
|
|
||||||
|
|
||||||
.globl pthread_rwlock_timedwrlock
|
|
||||||
.type pthread_rwlock_timedwrlock,@function
|
|
||||||
.align 16
|
|
||||||
pthread_rwlock_timedwrlock:
|
|
||||||
pushl %esi
|
|
||||||
pushl %edi
|
|
||||||
pushl %ebx
|
|
||||||
pushl %ebp
|
|
||||||
subl $8, %esp
|
|
||||||
|
|
||||||
movl 28(%esp), %ebp
|
|
||||||
movl 32(%esp), %edi
|
|
||||||
|
|
||||||
/* Get the lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
xaddl %eax, (%ebp)
|
|
||||||
#else
|
|
||||||
xaddl %eax, MUTEX(%ebp)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 1f
|
|
||||||
|
|
||||||
2: movl WRITER(%ebp), %eax
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 14f
|
|
||||||
cmp $0, NR_READERS(%ebp)
|
|
||||||
je 5f
|
|
||||||
|
|
||||||
3: incl WRITERS_QUEUED(%ebp)
|
|
||||||
je 4f
|
|
||||||
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
decl (%ebp)
|
|
||||||
#else
|
|
||||||
decl MUTEX(%ebp)
|
|
||||||
#endif
|
|
||||||
jne 10f
|
|
||||||
|
|
||||||
/* Get current time. */
|
|
||||||
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 15f
|
|
||||||
addl $1000000000, %edx
|
|
||||||
decl %ecx
|
|
||||||
15: testl %ecx, %ecx
|
|
||||||
js 16f /* Time is already up. */
|
|
||||||
|
|
||||||
/* Futex call. */
|
|
||||||
movl %ecx, (%esp) /* Store relative timeout. */
|
|
||||||
movl %edx, 4(%esp)
|
|
||||||
xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */
|
|
||||||
movl %esp, %esi
|
|
||||||
movl %ecx, %edx
|
|
||||||
leal WRITERS_WAKEUP(%ebp), %ebx
|
|
||||||
movl $SYS_futex, %eax
|
|
||||||
ENTER_KERNEL
|
|
||||||
movl %eax, %edx
|
|
||||||
17:
|
|
||||||
|
|
||||||
/* Reget the lock. */
|
|
||||||
movl $1, %eax
|
|
||||||
LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
xaddl %eax, (%ebp)
|
|
||||||
#else
|
|
||||||
xaddl %eax, MUTEX(%ebp)
|
|
||||||
#endif
|
|
||||||
testl %eax, %eax
|
|
||||||
jne 12f
|
|
||||||
|
|
||||||
13: cmpl $-ETIMEDOUT, %ecx
|
|
||||||
je 18f
|
|
||||||
decl WRITERS_QUEUED(%ebp)
|
|
||||||
movl $0, WRITERS_WAKEUP(%ebp)
|
|
||||||
jmp 2b
|
|
||||||
|
|
||||||
|
|
||||||
5: xorl %ecx, %ecx
|
|
||||||
movl %gs:8, %eax
|
|
||||||
movl %eax, WRITER(%ebp)
|
|
||||||
9: LOCK
|
|
||||||
#if MUTEX == 0
|
|
||||||
decl (%ebp)
|
|
||||||
#else
|
|
||||||
decl MUTEX(%ebp)
|
|
||||||
#endif
|
|
||||||
jne 6f
|
|
||||||
|
|
||||||
7: movl %ecx, %eax
|
|
||||||
|
|
||||||
addl $8, %esp
|
|
||||||
popl %ebp
|
|
||||||
popl %ebx
|
|
||||||
popl %edi
|
|
||||||
popl %esi
|
|
||||||
ret
|
|
||||||
|
|
||||||
1: movl %ebp, %ecx
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 2b
|
|
||||||
|
|
||||||
14: cmpl %gs:8, %eax
|
|
||||||
jne 3b
|
|
||||||
movl $EDEADLK, %ecx
|
|
||||||
jmp 9b
|
|
||||||
|
|
||||||
6: movl %ebp, %eax
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 7b
|
|
||||||
|
|
||||||
/* Overflow. */
|
|
||||||
4: decl WRITERS_QUEUED(%ebp)
|
|
||||||
movl $EAGAIN, %ecx
|
|
||||||
jmp 9b
|
|
||||||
|
|
||||||
10: movl %ebp, %eax
|
|
||||||
call __lll_mutex_unlock_wake
|
|
||||||
jmp 11b
|
|
||||||
|
|
||||||
12: movl %ebx, %ecx
|
|
||||||
call __lll_mutex_lock_wait
|
|
||||||
jmp 13b
|
|
||||||
|
|
||||||
16: movl $-ETIMEDOUT, %ecx
|
|
||||||
jmp 17b
|
|
||||||
|
|
||||||
18: movl $ETIMEDOUT, %ecx
|
|
||||||
jmp 9b
|
|
||||||
.size pthread_rwlock_timedwrlock,.-pthread_rwlock_timedwrlock
|
|
||||||
|
|
||||||
.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
|
|
||||||
@ -1,334 +0,0 @@
|
|||||||
/* 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 <shlib-compat.h>
|
|
||||||
|
|
||||||
.text
|
|
||||||
|
|
||||||
#ifndef UP
|
|
||||||
# define LOCK lock
|
|
||||||
#else
|
|
||||||
# define
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#define SYS_gettimeofday __NR_gettimeofday
|
|
||||||
#define SYS_futex 240
|
|
||||||
#define FUTEX_WAKE 1
|
|
||||||
|
|
||||||
#define EINTR 4
|
|
||||||
#define EAGAIN 11
|
|
||||||
#define EWOULDBLOCK EAGAIN
|
|
||||||
#define EINVAL 22
|
|
||||||
#define ETIMEDOUT 110
|
|
||||||
|
|
||||||
|
|
||||||
.globl __new_sem_wait
|
|
||||||
.type __new_sem_wait,@function
|
|
||||||
.align 16
|
|
||||||
__new_sem_wait:
|
|
||||||
pushl %ebx
|
|
||||||
pushl %esi
|
|
||||||
|
|
||||||
movl 12(%esp), %ebx
|
|
||||||
|
|
||||||
3: movl (%ebx), %eax
|
|
||||||
2: testl %eax, %eax
|
|
||||||
je,pn 1f
|
|
||||||
|
|
||||||
leal -1(%eax), %edx
|
|
||||||
LOCK
|
|
||||||
cmpxchgl %edx, (%ebx)
|
|
||||||
jne,pn 2b
|
|
||||||
xorl %eax, %eax
|
|
||||||
|
|
||||||
popl %esi
|
|
||||||
popl %ebx
|
|
||||||
ret
|
|
||||||
|
|
||||||
1: xorl %esi, %esi
|
|
||||||
movl $SYS_futex, %eax
|
|
||||||
movl %esi, %ecx
|
|
||||||
movl %esi, %edx
|
|
||||||
ENTER_KERNEL
|
|
||||||
|
|
||||||
testl %eax, %eax
|
|
||||||
je 3b
|
|
||||||
cmpl $-EWOULDBLOCK, %eax
|
|
||||||
je 3b
|
|
||||||
negl %eax
|
|
||||||
#ifdef PIC
|
|
||||||
call __i686.get_pc_thunk.bx
|
|
||||||
#else
|
|
||||||
movl $4f, %ebx
|
|
||||||
4:
|
|
||||||
#endif
|
|
||||||
addl $_GLOBAL_OFFSET_TABLE_, %ebx
|
|
||||||
#if USE___THREAD
|
|
||||||
movl %gs:0, %edx
|
|
||||||
subl errno@gottpoff(%ebx), %edx
|
|
||||||
movl %eax, (%edx)
|
|
||||||
#else
|
|
||||||
movl %eax, %edx
|
|
||||||
call __errno_location@plt
|
|
||||||
movl %edx, (%eax)
|
|
||||||
#endif
|
|
||||||
orl $-1, %eax
|
|
||||||
popl %esi
|
|
||||||
popl %ebx
|
|
||||||
ret
|
|
||||||
.size __new_sem_wait,.-__new_sem_wait
|
|
||||||
.symver __new_sem_wait, sem_wait@@GLIBC_2.1
|
|
||||||
#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
|
|
||||||
.global __old_sem_wait
|
|
||||||
__old_sem_wait = __new_sem_wait
|
|
||||||
.symver __old_sem_wait, sem_wait@GLIBC_2.0
|
|
||||||
#endif
|
|
||||||
|
|
||||||
|
|
||||||
.globl __new_sem_trywait
|
|
||||||
.type __new_sem_trywait,@function
|
|
||||||
.align 16
|
|
||||||
__new_sem_trywait:
|
|
||||||
movl 4(%esp), %ecx
|
|
||||||
|
|
||||||
movl (%ecx), %eax
|
|
||||||
2: testl %eax, %eax
|
|
||||||
jz 1f
|
|
||||||
|
|
||||||
leal -1(%eax), %edx
|
|
||||||
LOCK
|
|
||||||
cmpxchgl %edx, (%ecx)
|
|
||||||
jne,pn 2b
|
|
||||||
xorl %eax, %eax
|
|
||||||
ret
|
|
||||||
|
|
||||||
1:
|
|
||||||
#ifdef PIC
|
|
||||||
call __i686.get_pc_thunk.cx
|
|
||||||
#else
|
|
||||||
movl $3f, %ecx
|
|
||||||
3:
|
|
||||||
#endif
|
|
||||||
addl $_GLOBAL_OFFSET_TABLE_, %ecx
|
|
||||||
#if USE___THREAD
|
|
||||||
movl %gs:0, %edx
|
|
||||||
subl errno@gottpoff(%ecx), %edx
|
|
||||||
movl $EAGAIN, (%edx)
|
|
||||||
#else
|
|
||||||
call __errno_location@plt
|
|
||||||
movl $EAGAIN, (%eax)
|
|
||||||
#endif
|
|
||||||
orl $-1, %eax
|
|
||||||
ret
|
|
||||||
.size __new_sem_trywait,.-__new_sem_trywait
|
|
||||||
.symver __new_sem_trywait, sem_trywait@@GLIBC_2.1
|
|
||||||
#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
|
|
||||||
.global __old_sem_trywait
|
|
||||||
__old_sem_trywait = __new_sem_trywait
|
|
||||||
.symver __old_sem_trywait, sem_trywait@GLIBC_2.0
|
|
||||||
#endif
|
|
||||||
|
|
||||||
|
|
||||||
.globl sem_timedwait
|
|
||||||
.type sem_timedwait,@function
|
|
||||||
.align 16
|
|
||||||
sem_timedwait:
|
|
||||||
movl 4(%esp), %ecx
|
|
||||||
|
|
||||||
movl (%ecx), %eax
|
|
||||||
2: testl %eax, %eax
|
|
||||||
je,pn 1f
|
|
||||||
|
|
||||||
leal -1(%eax), %edx
|
|
||||||
LOCK
|
|
||||||
cmpxchgl %edx, (%ecx)
|
|
||||||
jne,pn 2b
|
|
||||||
|
|
||||||
xorl %eax, %eax
|
|
||||||
ret
|
|
||||||
|
|
||||||
/* Check whether the timeout value is valid. */
|
|
||||||
1: pushl %esi
|
|
||||||
pushl %edi
|
|
||||||
pushl %ebx
|
|
||||||
subl $8, %esp
|
|
||||||
|
|
||||||
movl %esp, %esi
|
|
||||||
movl 28(%esp), %edi
|
|
||||||
|
|
||||||
/* Check for invalid nanosecond field. */
|
|
||||||
cmpl $1000000000, 4(%edi)
|
|
||||||
movl $EINVAL, %eax
|
|
||||||
jae 6f
|
|
||||||
|
|
||||||
7: xorl %ecx, %ecx
|
|
||||||
movl %esp, %ebx
|
|
||||||
movl %ecx, %edx
|
|
||||||
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
|
|
||||||
movl $ETIMEDOUT, %eax
|
|
||||||
js 6f /* Time is already up. */
|
|
||||||
|
|
||||||
movl %ecx, (%esp) /* Store relative timeout. */
|
|
||||||
movl %edx, 4(%esp)
|
|
||||||
movl 24(%esp), %ebx
|
|
||||||
xorl %ecx, %ecx
|
|
||||||
movl $SYS_futex, %eax
|
|
||||||
xorl %edx, %edx
|
|
||||||
ENTER_KERNEL
|
|
||||||
|
|
||||||
testl %eax, %eax
|
|
||||||
je,pt 9f
|
|
||||||
cmpl $-EWOULDBLOCK, %eax
|
|
||||||
jne 3f
|
|
||||||
|
|
||||||
9: movl (%ebx), %eax
|
|
||||||
8: testl %eax, %eax
|
|
||||||
je 7b
|
|
||||||
|
|
||||||
leal -1(%eax), %ecx
|
|
||||||
LOCK
|
|
||||||
cmpxchgl %ecx, (%ebx)
|
|
||||||
jne,pn 8b
|
|
||||||
|
|
||||||
addl $8, %esp
|
|
||||||
xorl %eax, %eax
|
|
||||||
popl %ebx
|
|
||||||
popl %edi
|
|
||||||
popl %esi
|
|
||||||
ret
|
|
||||||
|
|
||||||
3: negl %eax
|
|
||||||
6:
|
|
||||||
#ifdef PIC
|
|
||||||
call __i686.get_pc_thunk.bx
|
|
||||||
#else
|
|
||||||
movl $4f, %ebx
|
|
||||||
4:
|
|
||||||
#endif
|
|
||||||
addl $_GLOBAL_OFFSET_TABLE_, %ebx
|
|
||||||
#if USE___THREAD
|
|
||||||
movl %gs:0, %edx
|
|
||||||
subl errno@gottpoff(%ebx), %edx
|
|
||||||
movl %eax, (%edx)
|
|
||||||
#else
|
|
||||||
movl %eax, %edx
|
|
||||||
call __errno_location@plt
|
|
||||||
movl %edx, (%eax)
|
|
||||||
#endif
|
|
||||||
|
|
||||||
addl $8, %esp
|
|
||||||
orl $-1, %eax
|
|
||||||
popl %ebx
|
|
||||||
popl %edi
|
|
||||||
popl %esi
|
|
||||||
ret
|
|
||||||
.size sem_timedwait,.-sem_timedwait
|
|
||||||
|
|
||||||
|
|
||||||
.globl __new_sem_post
|
|
||||||
.type __new_sem_post,@function
|
|
||||||
.align 16
|
|
||||||
__new_sem_post:
|
|
||||||
pushl %esi
|
|
||||||
pushl %ebx
|
|
||||||
|
|
||||||
movl 12(%esp), %ebx
|
|
||||||
movl $1, %edx
|
|
||||||
LOCK
|
|
||||||
xaddl %edx, (%ebx)
|
|
||||||
|
|
||||||
xorl %esi, %esi
|
|
||||||
movl $SYS_futex, %eax
|
|
||||||
movl $FUTEX_WAKE, %ecx
|
|
||||||
incl %edx
|
|
||||||
ENTER_KERNEL
|
|
||||||
|
|
||||||
testl %eax, %eax
|
|
||||||
js 1f
|
|
||||||
|
|
||||||
xorl %eax, %eax
|
|
||||||
popl %ebx
|
|
||||||
popl %esi
|
|
||||||
ret
|
|
||||||
|
|
||||||
1:
|
|
||||||
#ifdef PIC
|
|
||||||
call __i686.get_pc_thunk.bx
|
|
||||||
#else
|
|
||||||
movl $4f, %ebx
|
|
||||||
4:
|
|
||||||
#endif
|
|
||||||
addl $_GLOBAL_OFFSET_TABLE_, %ebx
|
|
||||||
#if USE___THREAD
|
|
||||||
movl %gs:0, %edx
|
|
||||||
subl errno@gottpoff(%ebx), %edx
|
|
||||||
movl $EINVAL, (%edx)
|
|
||||||
#else
|
|
||||||
call __errno_location@plt
|
|
||||||
movl $EAGAIN, (%eax)
|
|
||||||
#endif
|
|
||||||
|
|
||||||
orl $-1, %eax
|
|
||||||
popl %ebx
|
|
||||||
popl %esi
|
|
||||||
ret
|
|
||||||
.size __new_sem_post,.-__new_sem_post
|
|
||||||
.symver __new_sem_post, sem_post@@GLIBC_2.1
|
|
||||||
#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
|
|
||||||
.global __old_sem_post
|
|
||||||
__old_sem_post = __new_sem_post
|
|
||||||
.symver __old_sem_post, sem_post@GLIBC_2.0
|
|
||||||
#endif
|
|
||||||
|
|
||||||
|
|
||||||
#ifdef PIC
|
|
||||||
.section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
|
|
||||||
.globl __i686.get_pc_thunk.bx
|
|
||||||
.hidden __i686.get_pc_thunk.bx
|
|
||||||
.type __i686.get_pc_thunk.bx,@function
|
|
||||||
__i686.get_pc_thunk.bx:
|
|
||||||
movl (%esp), %ebx;
|
|
||||||
ret
|
|
||||||
.size __i686.get_pc_thunk.bx,.-__i686.get_pc_thunk.bx
|
|
||||||
|
|
||||||
|
|
||||||
.section .gnu.linkonce.t.__i686.get_pc_thunk.cx,"ax",@progbits
|
|
||||||
.globl __i686.get_pc_thunk.cx
|
|
||||||
.hidden __i686.get_pc_thunk.cx
|
|
||||||
.type __i686.get_pc_thunk.cx,@function
|
|
||||||
__i686.get_pc_thunk.cx:
|
|
||||||
movl (%esp), %ecx;
|
|
||||||
ret
|
|
||||||
.size __i686.get_pc_thunk.cx,.-__i686.get_pc_thunk.cx
|
|
||||||
#endif
|
|
||||||
158
nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
Normal file
158
nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
Normal file
@ -0,0 +1,158 @@
|
|||||||
|
/* 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
|
||||||
|
|
||||||
|
#define EAGAIN 11
|
||||||
|
#define EDEADLK 35
|
||||||
|
|
||||||
|
#ifndef UP
|
||||||
|
# define LOCK lock
|
||||||
|
#else
|
||||||
|
# define LOCK
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
.text
|
||||||
|
|
||||||
|
.globl __pthread_rwlock_rdlock
|
||||||
|
.type __pthread_rwlock_rdlock,@function
|
||||||
|
.align 16
|
||||||
|
__pthread_rwlock_rdlock:
|
||||||
|
pushl %esi
|
||||||
|
pushl %ebx
|
||||||
|
|
||||||
|
xorl %esi, %esi
|
||||||
|
xorl %edx, %edx
|
||||||
|
movl 12(%esp), %ebx
|
||||||
|
|
||||||
|
/* Get the lock. */
|
||||||
|
movl $1, %eax
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
xaddl %eax, (%ebx)
|
||||||
|
#else
|
||||||
|
xaddl %eax, MUTEX(%ebx)
|
||||||
|
#endif
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 1f
|
||||||
|
|
||||||
|
2: movl WRITER(%ebx), %eax
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 14f
|
||||||
|
cmp $0, WRITERS_QUEUED(%ebx)
|
||||||
|
je 5f
|
||||||
|
cmpl $0, FLAGS(%ebx)
|
||||||
|
je 5f
|
||||||
|
|
||||||
|
3: incl READERS_QUEUED(%ebx)
|
||||||
|
je 4f
|
||||||
|
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
decl (%ebx)
|
||||||
|
#else
|
||||||
|
decl MUTEX(%ebx)
|
||||||
|
#endif
|
||||||
|
jne 10f
|
||||||
|
|
||||||
|
11: addl $READERS_WAKEUP-MUTEX, %ebx
|
||||||
|
movl %esi, %ecx /* movl $FUTEX_WAIT, %ecx */
|
||||||
|
movl $SYS_futex, %eax
|
||||||
|
ENTER_KERNEL
|
||||||
|
|
||||||
|
subl $READERS_WAKEUP-MUTEX, %ebx
|
||||||
|
|
||||||
|
/* Reget the lock. */
|
||||||
|
movl $1, %eax
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
xaddl %eax, (%ebx)
|
||||||
|
#else
|
||||||
|
xaddl %eax, MUTEX(%ebx)
|
||||||
|
#endif
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 12f
|
||||||
|
|
||||||
|
13: decl READERS_QUEUED(%ebx)
|
||||||
|
jne 2b
|
||||||
|
movl $0, READERS_WAKEUP(%ebx)
|
||||||
|
jmp 2b
|
||||||
|
|
||||||
|
5: xorl %ecx, %ecx
|
||||||
|
incl NR_READERS(%ebx)
|
||||||
|
je 8f
|
||||||
|
9: LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
decl (%ebx)
|
||||||
|
#else
|
||||||
|
decl MUTEX(%ebx)
|
||||||
|
#endif
|
||||||
|
jne 6f
|
||||||
|
7:
|
||||||
|
|
||||||
|
movl %ecx, %eax
|
||||||
|
popl %ebx
|
||||||
|
popl %esi
|
||||||
|
ret
|
||||||
|
|
||||||
|
1: movl %ebx, %ecx
|
||||||
|
call __lll_mutex_lock_wait
|
||||||
|
jmp 2b
|
||||||
|
|
||||||
|
14: cmpl %gs:8, %eax
|
||||||
|
jne 3b
|
||||||
|
/* Deadlock detected. */
|
||||||
|
movl $EDEADLK, %ecx
|
||||||
|
jmp 9b
|
||||||
|
|
||||||
|
6: movl %ebx, %eax
|
||||||
|
call __lll_mutex_unlock_wake
|
||||||
|
jmp 7b
|
||||||
|
|
||||||
|
/* Overflow. */
|
||||||
|
8: decl NR_READERS(%ebx)
|
||||||
|
movl $EAGAIN, %ecx
|
||||||
|
jmp 9b
|
||||||
|
|
||||||
|
/* Overflow. */
|
||||||
|
4: decl READERS_QUEUED(%ebx)
|
||||||
|
movl $EAGAIN, %ecx
|
||||||
|
jmp 9b
|
||||||
|
|
||||||
|
10: movl %ebx, %eax
|
||||||
|
call __lll_mutex_unlock_wake
|
||||||
|
jmp 11b
|
||||||
|
|
||||||
|
12: movl %ebx, %ecx
|
||||||
|
call __lll_mutex_lock_wait
|
||||||
|
jmp 13b
|
||||||
|
.size __pthread_rwlock_rdlock,.-__pthread_rwlock_rdlock
|
||||||
|
|
||||||
|
.globl pthread_rwlock_rdlock
|
||||||
|
pthread_rwlock_rdlock = __pthread_rwlock_rdlock
|
||||||
|
|
||||||
|
.globl __pthread_rwlock_rdlock_internal
|
||||||
|
__pthread_rwlock_rdlock_internal = __pthread_rwlock_rdlock
|
||||||
@ -0,0 +1,192 @@
|
|||||||
|
/* 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_gettimeofday __NR_gettimeofday
|
||||||
|
#define SYS_futex 240
|
||||||
|
#define FUTEX_WAIT 0
|
||||||
|
#define FUTEX_WAKE 1
|
||||||
|
|
||||||
|
#define EAGAIN 11
|
||||||
|
#define EDEADLK 35
|
||||||
|
#define ETIMEDOUT 110
|
||||||
|
|
||||||
|
#ifndef UP
|
||||||
|
# define LOCK lock
|
||||||
|
#else
|
||||||
|
# define LOCK
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
.text
|
||||||
|
|
||||||
|
.globl pthread_rwlock_timedrdlock
|
||||||
|
.type pthread_rwlock_timedrdlock,@function
|
||||||
|
.align 16
|
||||||
|
pthread_rwlock_timedrdlock:
|
||||||
|
pushl %esi
|
||||||
|
pushl %edi
|
||||||
|
pushl %ebx
|
||||||
|
pushl %ebp
|
||||||
|
subl $8, %esp
|
||||||
|
|
||||||
|
movl 28(%esp), %ebp
|
||||||
|
movl 32(%esp), %edi
|
||||||
|
|
||||||
|
/* Get the lock. */
|
||||||
|
movl $1, %eax
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
xaddl %eax, (%ebp)
|
||||||
|
#else
|
||||||
|
xaddl %eax, MUTEX(%ebp)
|
||||||
|
#endif
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 1f
|
||||||
|
|
||||||
|
2: movl WRITER(%ebp), %eax
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 14f
|
||||||
|
cmp $0, WRITERS_QUEUED(%ebp)
|
||||||
|
je 5f
|
||||||
|
cmpl $0, FLAGS(%ebp)
|
||||||
|
je 5f
|
||||||
|
|
||||||
|
3: incl READERS_QUEUED(%ebp)
|
||||||
|
je 4f
|
||||||
|
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
decl (%ebp)
|
||||||
|
#else
|
||||||
|
decl MUTEX(%ebp)
|
||||||
|
#endif
|
||||||
|
jne 10f
|
||||||
|
|
||||||
|
/* Get current time. */
|
||||||
|
11: 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 15f
|
||||||
|
addl $1000000000, %edx
|
||||||
|
decl %ecx
|
||||||
|
15: testl %ecx, %ecx
|
||||||
|
js 16f /* Time is already up. */
|
||||||
|
|
||||||
|
/* Futex call. */
|
||||||
|
movl %ecx, (%esp) /* Store relative timeout. */
|
||||||
|
movl %edx, 4(%esp)
|
||||||
|
xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */
|
||||||
|
movl %esp, %esi
|
||||||
|
movl %ecx, %edx
|
||||||
|
leal READERS_WAKEUP(%ebp), %ebx
|
||||||
|
movl $SYS_futex, %eax
|
||||||
|
ENTER_KERNEL
|
||||||
|
movl %eax, %edx
|
||||||
|
17:
|
||||||
|
|
||||||
|
/* Reget the lock. */
|
||||||
|
movl $1, %eax
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
xaddl %eax, (%ebp)
|
||||||
|
#else
|
||||||
|
xaddl %eax, MUTEX(%ebp)
|
||||||
|
#endif
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 12f
|
||||||
|
|
||||||
|
13: cmpl $-ETIMEDOUT, %ecx
|
||||||
|
je 18f
|
||||||
|
decl READERS_QUEUED(%ebp)
|
||||||
|
jne 2b
|
||||||
|
movl $0, READERS_WAKEUP(%ebp)
|
||||||
|
jmp 2b
|
||||||
|
|
||||||
|
|
||||||
|
5: xorl %ecx, %ecx
|
||||||
|
incl NR_READERS(%ebp)
|
||||||
|
je 8f
|
||||||
|
9: LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
decl (%ebp)
|
||||||
|
#else
|
||||||
|
decl MUTEX(%ebp)
|
||||||
|
#endif
|
||||||
|
jne 6f
|
||||||
|
|
||||||
|
7: movl %ecx, %eax
|
||||||
|
|
||||||
|
addl $8, %esp
|
||||||
|
popl %ebp
|
||||||
|
popl %ebx
|
||||||
|
popl %edi
|
||||||
|
popl %esi
|
||||||
|
ret
|
||||||
|
|
||||||
|
1: movl %ebp, %ecx
|
||||||
|
call __lll_mutex_lock_wait
|
||||||
|
jmp 2b
|
||||||
|
|
||||||
|
14: cmpl %gs:8, %eax
|
||||||
|
jne 3b
|
||||||
|
movl $EDEADLK, %ecx
|
||||||
|
jmp 9b
|
||||||
|
|
||||||
|
6: movl %ebp, %eax
|
||||||
|
call __lll_mutex_unlock_wake
|
||||||
|
jmp 7b
|
||||||
|
|
||||||
|
/* Overflow. */
|
||||||
|
8: decl NR_READERS(%ebp)
|
||||||
|
movl $EAGAIN, %ecx
|
||||||
|
jmp 9b
|
||||||
|
|
||||||
|
/* Overflow. */
|
||||||
|
4: decl READERS_QUEUED(%ebp)
|
||||||
|
movl $EAGAIN, %ecx
|
||||||
|
jmp 9b
|
||||||
|
|
||||||
|
10: movl %ebp, %eax
|
||||||
|
call __lll_mutex_unlock_wake
|
||||||
|
jmp 11b
|
||||||
|
|
||||||
|
12: movl %ebx, %ecx
|
||||||
|
call __lll_mutex_lock_wait
|
||||||
|
jmp 13b
|
||||||
|
|
||||||
|
16: movl $-ETIMEDOUT, %ecx
|
||||||
|
jmp 17b
|
||||||
|
|
||||||
|
18: movl $ETIMEDOUT, %ecx
|
||||||
|
jmp 9b
|
||||||
|
.size pthread_rwlock_timedrdlock,.-pthread_rwlock_timedrdlock
|
||||||
@ -0,0 +1,184 @@
|
|||||||
|
/* 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_gettimeofday __NR_gettimeofday
|
||||||
|
#define SYS_futex 240
|
||||||
|
#define FUTEX_WAIT 0
|
||||||
|
#define FUTEX_WAKE 1
|
||||||
|
|
||||||
|
#define EAGAIN 11
|
||||||
|
#define EDEADLK 35
|
||||||
|
#define ETIMEDOUT 110
|
||||||
|
|
||||||
|
#ifndef UP
|
||||||
|
# define LOCK lock
|
||||||
|
#else
|
||||||
|
# define LOCK
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
.text
|
||||||
|
|
||||||
|
.globl pthread_rwlock_timedwrlock
|
||||||
|
.type pthread_rwlock_timedwrlock,@function
|
||||||
|
.align 16
|
||||||
|
pthread_rwlock_timedwrlock:
|
||||||
|
pushl %esi
|
||||||
|
pushl %edi
|
||||||
|
pushl %ebx
|
||||||
|
pushl %ebp
|
||||||
|
subl $8, %esp
|
||||||
|
|
||||||
|
movl 28(%esp), %ebp
|
||||||
|
movl 32(%esp), %edi
|
||||||
|
|
||||||
|
/* Get the lock. */
|
||||||
|
movl $1, %eax
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
xaddl %eax, (%ebp)
|
||||||
|
#else
|
||||||
|
xaddl %eax, MUTEX(%ebp)
|
||||||
|
#endif
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 1f
|
||||||
|
|
||||||
|
2: movl WRITER(%ebp), %eax
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 14f
|
||||||
|
cmp $0, NR_READERS(%ebp)
|
||||||
|
je 5f
|
||||||
|
|
||||||
|
3: incl WRITERS_QUEUED(%ebp)
|
||||||
|
je 4f
|
||||||
|
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
decl (%ebp)
|
||||||
|
#else
|
||||||
|
decl MUTEX(%ebp)
|
||||||
|
#endif
|
||||||
|
jne 10f
|
||||||
|
|
||||||
|
/* Get current time. */
|
||||||
|
11: 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 15f
|
||||||
|
addl $1000000000, %edx
|
||||||
|
decl %ecx
|
||||||
|
15: testl %ecx, %ecx
|
||||||
|
js 16f /* Time is already up. */
|
||||||
|
|
||||||
|
/* Futex call. */
|
||||||
|
movl %ecx, (%esp) /* Store relative timeout. */
|
||||||
|
movl %edx, 4(%esp)
|
||||||
|
xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */
|
||||||
|
movl %esp, %esi
|
||||||
|
movl %ecx, %edx
|
||||||
|
leal WRITERS_WAKEUP(%ebp), %ebx
|
||||||
|
movl $SYS_futex, %eax
|
||||||
|
ENTER_KERNEL
|
||||||
|
movl %eax, %edx
|
||||||
|
17:
|
||||||
|
|
||||||
|
/* Reget the lock. */
|
||||||
|
movl $1, %eax
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
xaddl %eax, (%ebp)
|
||||||
|
#else
|
||||||
|
xaddl %eax, MUTEX(%ebp)
|
||||||
|
#endif
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 12f
|
||||||
|
|
||||||
|
13: cmpl $-ETIMEDOUT, %ecx
|
||||||
|
je 18f
|
||||||
|
decl WRITERS_QUEUED(%ebp)
|
||||||
|
movl $0, WRITERS_WAKEUP(%ebp)
|
||||||
|
jmp 2b
|
||||||
|
|
||||||
|
|
||||||
|
5: xorl %ecx, %ecx
|
||||||
|
movl %gs:8, %eax
|
||||||
|
movl %eax, WRITER(%ebp)
|
||||||
|
9: LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
decl (%ebp)
|
||||||
|
#else
|
||||||
|
decl MUTEX(%ebp)
|
||||||
|
#endif
|
||||||
|
jne 6f
|
||||||
|
|
||||||
|
7: movl %ecx, %eax
|
||||||
|
|
||||||
|
addl $8, %esp
|
||||||
|
popl %ebp
|
||||||
|
popl %ebx
|
||||||
|
popl %edi
|
||||||
|
popl %esi
|
||||||
|
ret
|
||||||
|
|
||||||
|
1: movl %ebp, %ecx
|
||||||
|
call __lll_mutex_lock_wait
|
||||||
|
jmp 2b
|
||||||
|
|
||||||
|
14: cmpl %gs:8, %eax
|
||||||
|
jne 3b
|
||||||
|
movl $EDEADLK, %ecx
|
||||||
|
jmp 9b
|
||||||
|
|
||||||
|
6: movl %ebp, %eax
|
||||||
|
call __lll_mutex_unlock_wake
|
||||||
|
jmp 7b
|
||||||
|
|
||||||
|
/* Overflow. */
|
||||||
|
4: decl WRITERS_QUEUED(%ebp)
|
||||||
|
movl $EAGAIN, %ecx
|
||||||
|
jmp 9b
|
||||||
|
|
||||||
|
10: movl %ebp, %eax
|
||||||
|
call __lll_mutex_unlock_wake
|
||||||
|
jmp 11b
|
||||||
|
|
||||||
|
12: movl %ebx, %ecx
|
||||||
|
call __lll_mutex_lock_wait
|
||||||
|
jmp 13b
|
||||||
|
|
||||||
|
16: movl $-ETIMEDOUT, %ecx
|
||||||
|
jmp 17b
|
||||||
|
|
||||||
|
18: movl $ETIMEDOUT, %ecx
|
||||||
|
jmp 9b
|
||||||
|
.size pthread_rwlock_timedwrlock,.-pthread_rwlock_timedwrlock
|
||||||
112
nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
Normal file
112
nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
Normal file
@ -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
|
||||||
148
nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
Normal file
148
nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
Normal file
@ -0,0 +1,148 @@
|
|||||||
|
/* 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
|
||||||
|
|
||||||
|
#define EAGAIN 11
|
||||||
|
#define EDEADLK 35
|
||||||
|
|
||||||
|
#ifndef UP
|
||||||
|
# define LOCK lock
|
||||||
|
#else
|
||||||
|
# define LOCK
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
.text
|
||||||
|
|
||||||
|
.globl __pthread_rwlock_wrlock
|
||||||
|
.type __pthread_rwlock_wrlock,@function
|
||||||
|
.align 16
|
||||||
|
__pthread_rwlock_wrlock:
|
||||||
|
pushl %esi
|
||||||
|
pushl %ebx
|
||||||
|
|
||||||
|
xorl %esi, %esi
|
||||||
|
xorl %edx, %edx
|
||||||
|
movl 12(%esp), %ebx
|
||||||
|
|
||||||
|
/* Get the lock. */
|
||||||
|
movl $1, %eax
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
xaddl %eax, (%ebx)
|
||||||
|
#else
|
||||||
|
xaddl %eax, MUTEX(%ebx)
|
||||||
|
#endif
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 1f
|
||||||
|
|
||||||
|
2: movl WRITER(%ebx), %eax
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 14f
|
||||||
|
cmp $0, NR_READERS(%ebx)
|
||||||
|
je 5f
|
||||||
|
|
||||||
|
3: incl WRITERS_QUEUED(%ebx)
|
||||||
|
je 4f
|
||||||
|
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
decl (%ebx)
|
||||||
|
#else
|
||||||
|
decl MUTEX(%ebx)
|
||||||
|
#endif
|
||||||
|
jne 10f
|
||||||
|
|
||||||
|
11: addl $WRITERS_WAKEUP-MUTEX, %ebx
|
||||||
|
movl %esi, %ecx /* movl $FUTEX_WAIT, %ecx */
|
||||||
|
movl $SYS_futex, %eax
|
||||||
|
ENTER_KERNEL
|
||||||
|
|
||||||
|
subl $WRITERS_WAKEUP-MUTEX, %ebx
|
||||||
|
|
||||||
|
/* Reget the lock. */
|
||||||
|
movl $1, %eax
|
||||||
|
LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
xaddl %eax, (%ebx)
|
||||||
|
#else
|
||||||
|
xaddl %eax, MUTEX(%ebx)
|
||||||
|
#endif
|
||||||
|
testl %eax, %eax
|
||||||
|
jne 12f
|
||||||
|
|
||||||
|
13: decl WRITERS_QUEUED(%ebx)
|
||||||
|
movl $0, WRITERS_WAKEUP(%ebx)
|
||||||
|
jmp 2b
|
||||||
|
|
||||||
|
5: xorl %ecx, %ecx
|
||||||
|
movl %gs:8, %eax
|
||||||
|
movl %eax, WRITER(%ebx)
|
||||||
|
9: LOCK
|
||||||
|
#if MUTEX == 0
|
||||||
|
decl (%ebx)
|
||||||
|
#else
|
||||||
|
decl MUTEX(%ebx)
|
||||||
|
#endif
|
||||||
|
jne 6f
|
||||||
|
7:
|
||||||
|
|
||||||
|
movl %ecx, %eax
|
||||||
|
popl %ebx
|
||||||
|
popl %esi
|
||||||
|
ret
|
||||||
|
|
||||||
|
1: movl %ebx, %ecx
|
||||||
|
call __lll_mutex_lock_wait
|
||||||
|
jmp 2b
|
||||||
|
|
||||||
|
14: cmpl %gs:8, %eax
|
||||||
|
jne 3b
|
||||||
|
movl $EDEADLK, %ecx
|
||||||
|
jmp 9b
|
||||||
|
|
||||||
|
6: movl %ebx, %eax
|
||||||
|
call __lll_mutex_unlock_wake
|
||||||
|
jmp 7b
|
||||||
|
|
||||||
|
4: decl WRITERS_QUEUED(%ebx)
|
||||||
|
movl $EAGAIN, %ecx
|
||||||
|
jmp 9b
|
||||||
|
|
||||||
|
10: movl %ebx, %eax
|
||||||
|
call __lll_mutex_unlock_wake
|
||||||
|
jmp 11b
|
||||||
|
|
||||||
|
12: movl %ebx, %ecx
|
||||||
|
call __lll_mutex_lock_wait
|
||||||
|
jmp 13b
|
||||||
|
.size __pthread_rwlock_wrlock,.-__pthread_rwlock_wrlock
|
||||||
|
|
||||||
|
.globl pthread_rwlock_wrlock
|
||||||
|
pthread_rwlock_wrlock = __pthread_rwlock_wrlock
|
||||||
|
|
||||||
|
.globl __pthread_rwlock_wrlock_internal
|
||||||
|
__pthread_rwlock_wrlock_internal = __pthread_rwlock_wrlock
|
||||||
@ -1,6 +1,6 @@
|
|||||||
/* Copyright (C) 2002 Free Software Foundation, Inc.
|
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
||||||
This file is part of the GNU C Library.
|
This file is part of the GNU C Library.
|
||||||
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
The GNU C Library is free software; you can redistribute it and/or
|
||||||
modify it under the terms of the GNU Lesser General Public
|
modify it under the terms of the GNU Lesser General Public
|
||||||
@ -17,4 +17,4 @@
|
|||||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||||
02111-1307 USA. */
|
02111-1307 USA. */
|
||||||
|
|
||||||
#include "../i486/lowlevelrwlock.S"
|
#include "../i486/pthread_rwlock_rdlock.S"
|
||||||
@ -0,0 +1,20 @@
|
|||||||
|
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
||||||
|
This file is part of the GNU C Library.
|
||||||
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
||||||
|
|
||||||
|
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 "../i486/pthread_rwlock_timedrdlock.S"
|
||||||
@ -0,0 +1,20 @@
|
|||||||
|
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
||||||
|
This file is part of the GNU C Library.
|
||||||
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
||||||
|
|
||||||
|
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 "../i486/pthread_rwlock_timedwrlock.S"
|
||||||
@ -1,6 +1,6 @@
|
|||||||
/* Copyright (C) 2002 Free Software Foundation, Inc.
|
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
||||||
This file is part of the GNU C Library.
|
This file is part of the GNU C Library.
|
||||||
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
The GNU C Library is free software; you can redistribute it and/or
|
||||||
modify it under the terms of the GNU Lesser General Public
|
modify it under the terms of the GNU Lesser General Public
|
||||||
@ -17,4 +17,4 @@
|
|||||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||||
02111-1307 USA. */
|
02111-1307 USA. */
|
||||||
|
|
||||||
#include "../i486/lowlevelsem.S"
|
#include "../i486/pthread_rwlock_unlock.S"
|
||||||
@ -1,6 +1,6 @@
|
|||||||
/* Copyright (C) 2002 Free Software Foundation, Inc.
|
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
||||||
This file is part of the GNU C Library.
|
This file is part of the GNU C Library.
|
||||||
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
The GNU C Library is free software; you can redistribute it and/or
|
||||||
modify it under the terms of the GNU Lesser General Public
|
modify it under the terms of the GNU Lesser General Public
|
||||||
@ -17,4 +17,4 @@
|
|||||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||||
02111-1307 USA. */
|
02111-1307 USA. */
|
||||||
|
|
||||||
#include "../i486/lowlevelcond.S"
|
#include "../i486/pthread_rwlock_wrlock.S"
|
||||||
@ -1,20 +0,0 @@
|
|||||||
/* Copyright (C) 2002 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 "../i486/lowlevelsem.S"
|
|
||||||
@ -1,6 +1,6 @@
|
|||||||
/* Copyright (C) 2002 Free Software Foundation, Inc.
|
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
||||||
This file is part of the GNU C Library.
|
This file is part of the GNU C Library.
|
||||||
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
The GNU C Library is free software; you can redistribute it and/or
|
||||||
modify it under the terms of the GNU Lesser General Public
|
modify it under the terms of the GNU Lesser General Public
|
||||||
@ -17,4 +17,4 @@
|
|||||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||||
02111-1307 USA. */
|
02111-1307 USA. */
|
||||||
|
|
||||||
#include "../i486/lowlevelcond.S"
|
#include "../i486/pthread_rwlock_rdlock.S"
|
||||||
@ -0,0 +1,20 @@
|
|||||||
|
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
||||||
|
This file is part of the GNU C Library.
|
||||||
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
||||||
|
|
||||||
|
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 "../i486/pthread_rwlock_timedrdlock.S"
|
||||||
@ -0,0 +1,20 @@
|
|||||||
|
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
||||||
|
This file is part of the GNU C Library.
|
||||||
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
||||||
|
|
||||||
|
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 "../i486/pthread_rwlock_timedwrlock.S"
|
||||||
@ -1,6 +1,6 @@
|
|||||||
/* Copyright (C) 2002 Free Software Foundation, Inc.
|
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
||||||
This file is part of the GNU C Library.
|
This file is part of the GNU C Library.
|
||||||
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
The GNU C Library is free software; you can redistribute it and/or
|
||||||
modify it under the terms of the GNU Lesser General Public
|
modify it under the terms of the GNU Lesser General Public
|
||||||
@ -18,4 +18,4 @@
|
|||||||
02111-1307 USA. */
|
02111-1307 USA. */
|
||||||
|
|
||||||
#define HAVE_CMOV 1
|
#define HAVE_CMOV 1
|
||||||
#include "../i486/lowlevelrwlock.S"
|
#include "../i486/pthread_rwlock_unlock.S"
|
||||||
@ -0,0 +1,20 @@
|
|||||||
|
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
||||||
|
This file is part of the GNU C Library.
|
||||||
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
||||||
|
|
||||||
|
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 "../i486/pthread_rwlock_wrlock.S"
|
||||||
28
nptl/sysdeps/unix/sysv/linux/i386/lowlevelrwlock.h
Normal file
28
nptl/sysdeps/unix/sysv/linux/i386/lowlevelrwlock.h
Normal file
@ -0,0 +1,28 @@
|
|||||||
|
/* 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. */
|
||||||
|
|
||||||
|
/* Offsets in the pthread_rwlock_t structure. */
|
||||||
|
#define MUTEX 0
|
||||||
|
#define NR_READERS 4
|
||||||
|
#define READERS_WAKEUP 8
|
||||||
|
#define WRITERS_WAKEUP 12
|
||||||
|
#define READERS_QUEUED 16
|
||||||
|
#define WRITERS_QUEUED 20
|
||||||
|
#define FLAGS 24
|
||||||
|
#define WRITER 28
|
||||||
Loading…
Reference in New Issue
Block a user