1/* This testcase is part of GDB, the GNU debugger.
2
3   Copyright 2018-2020 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 <stdio.h>
19#include <sys/types.h>
20#include <unistd.h>
21
22/* This is set to 1 by the debugger post attach to continue to the
23 watchpoint trigger.  */
24volatile int should_continue = 0;
25/* The variable to place a watchpoint on.  */
26volatile int watched_variable = 0;
27
28int
29main (void)
30{
31  unsigned int counter = 1;
32  int mypid = getpid ();
33
34  /* Wait for the debugger to attach, but not indefinitely so this
35     test program is not left hanging around.  */
36  for (counter = 0; !should_continue && counter < 100; counter++)
37    sleep (1);			/* pidacquired */
38
39  /* Trigger a watchpoint.  */
40  watched_variable = 4;
41  printf ("My variable is %d\n", watched_variable);
42  return 0;
43}
44