binutils-gdb/gdb/testsuite/gdb.threads/step-over-trips-on-watchpoint.c
Joel Brobecker 61baf725ec update copyright year range in GDB files
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.

gdb/ChangeLog:

        Update copyright year range in all GDB files.
2017-01-01 10:52:34 +04:00

70 lines
1.8 KiB
C

/* This testcase is part of GDB, the GNU debugger.
Copyright 2014-2017 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <unistd.h>
#include <stdlib.h>
pthread_barrier_t barrier;
pthread_t child_thread;
volatile unsigned int counter = 1;
volatile unsigned int watch_me;
volatile unsigned int other;
void *
child_function (void *arg)
{
pthread_barrier_wait (&barrier);
while (counter > 0)
{
counter++;
watch_me = 1; /* set breakpoint child here */
other = 1;
usleep (1);
}
pthread_exit (NULL);
}
int
main ()
{
int res;
long i;
alarm (300);
pthread_barrier_init (&barrier, NULL, 2);
res = pthread_create (&child_thread, NULL, child_function, NULL);
pthread_barrier_wait (&barrier);
/* Use an infinite loop with no function calls so that "step" over
this line never finishes before the watchpoint in the other
thread triggers. That can happen if the step-over of thread 2 is
done with displaced stepping on a target that is always in
non-stop mode, as in that case GDB runs both threads
simultaneously. */
while (1); /* set wait-thread breakpoint here */
pthread_join (child_thread, NULL);
exit (EXIT_SUCCESS);
}