gdb_out_bad.txt

$ gdb condwait_test

<snip LICENSE>

(gdb) set environment LD_PRELOAD ./condwait_wrap.so
(gdb) b condwait_test.c:17
Breakpoint 1 at 0x400864: file condwait_test.c, line 17.
(gdb) r
Starting program: condwait_test 
[Thread debugging using libthread_db enabled]
[New Thread 0x7ffff7dd3910 (LWP 603)]
[Switching to Thread 0x7ffff7dd3910 (LWP 603)]

Breakpoint 1, thr_start (data=0x0) at condwait_test.c:17
17			pthread_cond_wait(&cond, &mut);
(gdb) s
pthread_cond_wait (cond=0x600d80, mutex=0x600dc0) at condwait_wrap.c:24
24		printf("Calling func condwait with cond: %p, mutex: %p...",
(gdb) n
26		fflush(stdout);
(gdb) n
Calling func condwait with cond: 0x600d80, mutex: 0x600dc0...27		ret = condwait_internal(cond, mutex);
(gdb) s
__pthread_cond_wait_2_0 (cond=0x600d80, mutex=0x600dc0) at old_pthread_cond_wait.c:32
32	{
Current language:  auto; currently minimal
(gdb) bt
#0  __pthread_cond_wait_2_0 (cond=0x600d80, mutex=0x600dc0) at old_pthread_cond_wait.c:32
#1  0x00007ffff7dfb777 in pthread_cond_wait (cond=0x600d80, mutex=0x600dc0) at condwait_wrap.c:27
#2  0x0000000000400873 in thr_start (data=0x0) at condwait_test.c:17
#3  0x0000003cf900686a in start_thread (arg=<value optimized out>) at pthread_create.c:297
#4  0x0000003cf84de39d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()
gdb) n
33	  if (cond->cond == NULL)
(gdb) n
32	{
(gdb) n
33	  if (cond->cond == NULL)
(gdb) 
38	      newcond = (pthread_cond_t *) calloc (sizeof (pthread_cond_t), 1);
(gdb) 
39	      if (newcond == NULL)
(gdb) 
38	      newcond = (pthread_cond_t *) calloc (sizeof (pthread_cond_t), 1);
(gdb) 
39	      if (newcond == NULL)
(gdb) 
50	      if (atomic_compare_and_exchange_bool_acq (&cond->cond, newcond, NULL))
(gdb) 
52		free (newcond);
(gdb) print *cond
$1 = {cond = 0x7ffff00008c0}
(gdb) 
55	  return __pthread_cond_wait (cond->cond, mutex);
(gdb) s
56	}
(gdb) 
__pthread_cond_wait_2_0 (cond=<value optimized out>, mutex=<value optimized out>)
    at old_pthread_cond_wait.c:55
55	  return __pthread_cond_wait (cond->cond, mutex);
(gdb) print /x $rdi
$2 = 0x7ffff00008c0
(gdb) s
pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:155
155		pushq	%r12
Current language:  auto; currently asm
(gdb) bt
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:155
#1  0x00007ffff7dfb777 in pthread_cond_wait (cond=0x600d80, mutex=0x600dc0) at condwait_wrap.c:27
#2  0x0000000000400873 in thr_start (data=0x0) at condwait_test.c:17
#3  0x0000003cf900686a in start_thread (arg=<value optimized out>) at pthread_create.c:297
#4  0x0000003cf84de39d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()