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authorUlrich Drepper <drepper@redhat.com>2003-02-27 10:32:38 +0000
committerUlrich Drepper <drepper@redhat.com>2003-02-27 10:32:38 +0000
commitd2637c70532ba49bf41b25c6aaf1b5d2b09d4aed (patch)
tree055a8b0bf4eb4462552352fbe52793c09f82fdcf /nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
parente361e438a115275fdd56eb25a52b798127adae76 (diff)
Update.
2003-02-24 David Mosberger <davidm@hpl.hp.com> * sysdeps/unix/sysv/linux/ia64/sysdep.S (__syscall_error): Fix unwind info.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S26
1 files changed, 25 insertions, 1 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
index bb5f8d1bc8..7dd97ba49e 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
@@ -76,10 +76,25 @@ __pthread_rwlock_unlock:
leal READERS_WAKEUP(%edi), %ebx
0: incl (%ebx)
- xorl %esi, %esi
+ LOCK
+#if MUTEX == 0
+ decl (%edi)
+#else
+ decl MUTEX(%edi)
+#endif
+ jne 7f
+
+8: xorl %esi, %esi
movl $SYS_futex, %eax
ENTER_KERNEL
+ xorl %eax, %eax
+ popl %edi
+ popl %esi
+ popl %ebx
+ ret
+
+ .align 16
6: LOCK
#if MUTEX == 0
decl (%edi)
@@ -112,6 +127,15 @@ __pthread_rwlock_unlock:
call __lll_mutex_unlock_wake
jmp 4b
+7:
+#if MUTEX == 0
+ movl %edi, %eax
+#else
+ leal MUTEX(%edx), %eax
+#endif
+ call __lll_mutex_unlock_wake
+ jmp 8b
+
.size __pthread_rwlock_unlock,.-__pthread_rwlock_unlock
.globl pthread_rwlock_unlock