diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2003-09-22 04:41:12 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-09-22 04:41:12 +0000 |
| commit | 3a226d33012ec69a480ddb58940f2aaa3e24f059 (patch) | |
| tree | 7f689de76474cebc1b46441eb6765f04995fad9c /nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S | |
| parent | 71451de2f1245b21ce3ba407068c453a866c03d6 (diff) | |
| download | glibc-3a226d33012ec69a480ddb58940f2aaa3e24f059.tar.gz glibc-3a226d33012ec69a480ddb58940f2aaa3e24f059.tar.xz glibc-3a226d33012ec69a480ddb58940f2aaa3e24f059.zip | |
Update.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/lowlevelmutex.S: Removed. * sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S: Adjust for new mutex implementation. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S: Likewise * sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S: Likewise. Don't use requeue. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S: Likewise.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S | 31 |
1 files changed, 6 insertions, 25 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S index d62310148d..92eadfc433 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S @@ -47,14 +47,14 @@ __pthread_cond_signal: /* Get internal lock. */ movq %rdi, %r8 movl $1, %esi + xorl %eax, %eax LOCK #if cond_lock == 0 - xaddl %esi, (%rdi) + cmpxchgl %esi, (%rdi) #else - xaddl %esi, cond_lock(%rdi) + cmpxchgl %esi, cond_lock(%rdi) #endif - testl %esi, %esi - jne 1f + jnz 1f 2: addq $wakeup_seq, %rdi movq total_seq(%r8), %rcx @@ -65,21 +65,11 @@ __pthread_cond_signal: addq $1, (%rdi) /* Wake up one thread. */ - movq $FUTEX_REQUEUE, %rsi + movq $FUTEX_WAKE, %rsi movq $SYS_futex, %rax - xorq %rdx, %rdx - movq $1, %r10 + movq $1, %rdx syscall -#ifndef __ASSUME_FUTEX_REQUEUE - cmpq $-EINVAL, %rax - je 7f -#endif - - /* If we moved a thread we in any case have to make the syscall. */ - testq %rax, %rax - jne 5f - /* Unlock. */ 4: LOCK #if cond_lock == 0 @@ -112,15 +102,6 @@ __pthread_cond_signal: #endif callq __lll_mutex_unlock_wake jmp 6b - -#ifndef __ASSUME_FUTEX_REQUEUE -7: /* The futex requeue functionality is not available. */ - movq $1, %rdx - movq $FUTEX_WAKE, %rsi - movq $SYS_futex, %rax - syscall - jmp 4b -#endif .size __pthread_cond_signal, .-__pthread_cond_signal versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal, GLIBC_2_3_2) |