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- /* This testcase is part of GDB, the GNU debugger.
- Copyright 2014-2022 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;
- void *
- child_function (void *arg)
- {
- pthread_barrier_wait (&barrier);
- while (counter > 0)
- {
- counter++;
- asm (" nop"); /* set breakpoint child here */
- asm (" nop"); /* set breakpoint after step-over here */
- 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 breakpoint 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);
- }
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