=> 0xb76ce33d <pthread_mutex_lock+29>:	mov    0xc(%esi),%edi
   0xb76ce340 <pthread_mutex_lock+32>:	mov    %edi,%ecx
   0xb76ce342 <pthread_mutex_lock+34>:	mov    %edi,%eax
   0xb76ce344 <pthread_mutex_lock+36>:	and    $0x7f,%ecx
   0xb76ce347 <pthread_mutex_lock+39>:	and    $0x7c,%eax
   0xb76ce34a <pthread_mutex_lock+42>:	jne    0xb76ce391 <pthread_mutex_lock+113>
   0xb76ce34c <pthread_mutex_lock+44>:	mov    %gs:0x68,%edx
   0xb76ce353 <pthread_mutex_lock+51>:	test   %ecx,%ecx
   0xb76ce355 <pthread_mutex_lock+53>:	mov    %edx,-0x10(%ebp)
   0xb76ce358 <pthread_mutex_lock+56>:	jne    0xb76ce3ce <pthread_mutex_lock+174>
   0xb76ce35a <pthread_mutex_lock+58>:	and    $0x80,%edi
   0xb76ce360 <pthread_mutex_lock+64>:	mov    $0x1,%ecx
   0xb76ce365 <pthread_mutex_lock+69>:	xor    %eax,%eax
   0xb76ce367 <pthread_mutex_lock+71>:	lock cmpxchg %ecx,(%esi)
   0xb76ce36b <pthread_mutex_lock+75>:	jne    0xb76ce542 <_L_lock_791>
   0xb76ce371 <pthread_mutex_lock+81>:	mov    0x8(%esi),%eax