diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S index 1680b3d859..db0428f527 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S @@ -53,12 +53,13 @@ __pthread_cond_wait: movl 16(%esp), %ebx /* Get internal lock. */ - movl $1, %eax + movl $1, %edx + xorl %eax, %eax LOCK #if cond_lock == 0 - xaddl %eax, (%ebx) + cmpxchgl %edx, (%ebx) #else - xaddl %eax, cond_lock(%ebx) + cmpxchgl %edx, cond_lock(%ebx) #endif testl %eax, %eax jne 1f @@ -114,12 +115,13 @@ __pthread_cond_wait: .LcleanupEND: /* Lock. */ - movl $1, %eax + movl $1, %edx + xorl %eax, %eax LOCK #if cond_lock == 0 - xaddl %eax, (%ebx) + cmpxchgl %edx, (%ebx) #else - xaddl %eax, cond_lock(%ebx) + cmpxchgl %edx, cond_lock(%ebx) #endif testl %eax, %eax jne 5f @@ -246,12 +248,13 @@ __condvar_w_cleanup: movl %eax, %esi /* Get internal lock. */ - movl $1, %eax + movl $1, %edx + xorl %eax, %eax LOCK #if cond_lock == 0 - xaddl %eax, (%ebx) + cmpxchgl %edx, (%ebx) #else - xaddl %eax, cond_lock(%ebx) + cmpxchgl %edx, cond_lock(%ebx) #endif testl %eax, %eax je 1f @@ -270,7 +273,11 @@ __condvar_w_cleanup: adcl $0, woken_seq+4(%ebx) LOCK +#if cond_lock == 0 + subl $1, (%ebx) +#else subl $1, cond_lock(%ebx) +#endif je 2f #if cond_lock == 0 |