binutils-gdb/gdb/testsuite/gdb.btrace/multi-thread-step.c

54 lines
1.3 KiB
C

/* This testcase is part of GDB, the GNU debugger.
Copyright 2013-2015 Free Software Foundation, Inc.
Contributed by Intel Corp. <markus.t.metzger@intel.com>
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>
static pthread_barrier_t barrier;
static int global;
static void *
test (void *arg)
{
pthread_barrier_wait (&barrier);
global = 42; /* bp.1 */
pthread_barrier_wait (&barrier);
global = 42; /* bp.2 */
return arg;
}
int
main (void)
{
pthread_t th;
pthread_barrier_init (&barrier, NULL, 2);
pthread_create (&th, NULL, test, NULL);
test (NULL);
pthread_join (th, NULL);
pthread_barrier_destroy (&barrier);
return 0; /* bp.3 */
}