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- /* This testcase is part of GDB, the GNU debugger.
- Copyright 2016-2022 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>
- #define NUM_THREADS 20
- const int num_threads = NUM_THREADS;
- static pthread_t child_thread[NUM_THREADS];
- static pthread_barrier_t threads_started_barrier;
- volatile int always_zero;
- volatile unsigned int dummy;
- static void
- infinite_loop (void)
- {
- while (1)
- {
- dummy++; /* set breakpoint here */
- }
- }
- static void *
- child_function (void *arg)
- {
- pthread_barrier_wait (&threads_started_barrier);
- infinite_loop ();
- return NULL;
- }
- void
- all_started (void)
- {
- }
- int
- main (void)
- {
- int res;
- int i;
- alarm (300);
- pthread_barrier_init (&threads_started_barrier, NULL, NUM_THREADS + 1);
- for (i = 0; i < NUM_THREADS; i++)
- {
- res = pthread_create (&child_thread[i], NULL, child_function, NULL);
- }
- /* Wait until all threads have been scheduled. */
- pthread_barrier_wait (&threads_started_barrier);
- all_started ();
- infinite_loop ();
- }
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