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| author | Ulrich Drepper <drepper@redhat.com> | 2003-09-21 07:40:24 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-09-21 07:40:24 +0000 |
| commit | 71451de2f1245b21ce3ba407068c453a866c03d6 (patch) | |
| tree | 6646149e32cd4e762f758fa4796a62aab0ea8adf /nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S | |
| parent | 56a4aa9886dc1145f8feac66b66216a44cb092c1 (diff) | |
| download | glibc-71451de2f1245b21ce3ba407068c453a866c03d6.tar.gz glibc-71451de2f1245b21ce3ba407068c453a866c03d6.tar.xz glibc-71451de2f1245b21ce3ba407068c453a866c03d6.zip | |
Update.
2003-09-21 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/i386/lowlevellock.h: Completely revamp the locking macros. No distinction between normal and mutex locking anymore. * sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Rewrite mutex locking. Merge bits from lowlevelmutex.S we still need. * sysdeps/unix/sysv/linux/i386/i486/lowlevelmutex.S: Removed. * Makefile (routines): Remove libc-lowlevelmutex. (libpthread-rountines): Remove lowlevelmutex. * pthread_barrier_wait.S: Adjust for new mutex implementation. * pthread_cond_broadcast.S: Likewise. * pthread_cond_timedwait.S: Likewise. * pthread_cond_wait.S: Likewise. * pthread_rwlock_rdlock.S: Likewise. * pthread_rwlock_timedrdlock.S: Likewise. * pthread_rwlock_timedwrlock.S: Likewise. * pthread_rwlock_unlock.S: Likewise. * pthread_rwlock_wrlock.S: Likewise. * pthread_cond_signal.S: Likewise. Don't use requeue.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S index 7d9aa93ebb..409c046b7b 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S @@ -50,12 +50,13 @@ pthread_rwlock_timedrdlock: movl 32(%esp), %edi /* Get the lock. */ - movl $1, %eax + movl $1, %edx + xorl %eax, %eax LOCK #if MUTEX == 0 - xaddl %eax, (%ebp) + cmpxchgl %edx, (%ebp) #else - xaddl %eax, MUTEX(%ebp) + cmpxchgl %edx, MUTEX(%ebp) #endif testl %eax, %eax jne 1f @@ -114,22 +115,23 @@ pthread_rwlock_timedrdlock: leal READERS_WAKEUP(%ebp), %ebx movl $SYS_futex, %eax ENTER_KERNEL - movl %eax, %edx + movl %eax, %ecx 17: /* Reget the lock. */ - movl $1, %eax + movl $1, %edx + xorl %eax, %eax LOCK #if MUTEX == 0 - xaddl %eax, (%ebp) + cmpxchgl %edx, (%ebp) #else - xaddl %eax, MUTEX(%ebp) + cmpxchgl %edx, MUTEX(%ebp) #endif testl %eax, %eax jne 12f 13: subl $1, READERS_QUEUED(%ebp) - cmpl $-ETIMEDOUT, %edx + cmpl $-ETIMEDOUT, %ecx jne 2b 18: movl $ETIMEDOUT, %ecx @@ -207,7 +209,7 @@ pthread_rwlock_timedrdlock: call __lll_mutex_lock_wait jmp 13b -16: movl $-ETIMEDOUT, %edx +16: movl $-ETIMEDOUT, %ecx jmp 17b 19: movl $EINVAL, %ecx |