step-over-trips-on-watchpoint.c revision 1.3 
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;
26volatile unsigned int watch_me;
27volatile unsigned int other;
28
29void *
30child_function (void *arg)
31{
32  pthread_barrier_wait (&barrier);
33
34  while (counter > 0)
35    {
36      counter++;
37
38      watch_me = 1; /* set breakpoint child here */
39      other = 1;
40      usleep (1);
41    }
42
43  pthread_exit (NULL);
44}
45
46static int
47wait_threads (void)
48{
49  return 1; /* in wait_threads */
50}
51
52int
53main ()
54{
55  int res;
56  long i;
57
58  pthread_barrier_init (&barrier, NULL, 2);
59
60  res = pthread_create (&child_thread, NULL, child_function, NULL);
61  pthread_barrier_wait (&barrier);
62  wait_threads (); /* set wait-thread breakpoint here */
63
64  pthread_join (child_thread, NULL);
65
66  exit (EXIT_SUCCESS);
67}
68