diff options
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 | 18 |
1 files changed, 12 insertions, 6 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 709fcf4ca8..d62310148d 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 @@ -45,17 +45,18 @@ __pthread_cond_signal: /* Get internal lock. */ + movq %rdi, %r8 movl $1, %esi LOCK #if cond_lock == 0 - xaddl %esi, (%r8) + xaddl %esi, (%rdi) #else - xaddl %esi, cond_lock(%r8) + xaddl %esi, cond_lock(%rdi) #endif testl %esi, %esi jne 1f -2: leaq wakeup_seq(%r8), %rdi +2: addq $wakeup_seq, %rdi movq total_seq(%r8), %rcx cmpq (%rdi), %rcx jbe 4f @@ -64,7 +65,7 @@ __pthread_cond_signal: addq $1, (%rdi) /* Wake up one thread. */ - movq $FUTEX_WAKE, %rsi + movq $FUTEX_REQUEUE, %rsi movq $SYS_futex, %rax xorq %rdx, %rdx movq $1, %r10 @@ -81,7 +82,11 @@ __pthread_cond_signal: /* Unlock. */ 4: LOCK +#if cond_lock == 0 + decl (%r8) +#else decl cond_lock(%r8) +#endif jne 5f 6: xorl %eax, %eax @@ -98,7 +103,7 @@ __pthread_cond_signal: #endif jmp 2b - /* Unlock in loop requires waekup. */ + /* Unlock in loop requires wakeup. */ 5: #if cond_lock != 0 addq $cond_lock-wakeup_seq, %rdi @@ -111,10 +116,11 @@ __pthread_cond_signal: #ifndef __ASSUME_FUTEX_REQUEUE 7: /* The futex requeue functionality is not available. */ movq $1, %rdx - movq $FUTEX_WAKE, %esi + 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) |