step-over-lands-on-breakpoint.c revision 1.1 
1/* This testcase is part of GDB, the GNU debugger.
2
3   Copyright 2014-2015 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18#include <pthread.h>
19#include <unistd.h>
20#include <stdlib.h>
21
22pthread_barrier_t barrier;
23pthread_t child_thread;
24
25volatile unsigned int counter = 1;
26
27void *
28child_function (void *arg)
29{
30  pthread_barrier_wait (&barrier);
31
32  while (counter > 0)
33    {
34      counter++;
35
36      asm ("	nop"); /* set breakpoint child here */
37      asm ("	nop"); /* set breakpoint after step-over here */
38      usleep (1);
39    }
40
41  pthread_exit (NULL);
42}
43
44static int
45wait_threads (void)
46{
47  return 1; /* in wait_threads */
48}
49
50int
51main ()
52{
53  int res;
54  long i;
55
56  pthread_barrier_init (&barrier, NULL, 2);
57
58  res = pthread_create (&child_thread, NULL, child_function, NULL);
59  pthread_barrier_wait (&barrier);
60  wait_threads (); /* set wait-thread breakpoint here */
61
62  pthread_join (child_thread, NULL);
63
64  exit (EXIT_SUCCESS);
65}
66