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- /* This testcase is part of GDB, the GNU debugger.
- Copyright 2009-2022 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>
- #include <signal.h>
- unsigned int args[2];
- pthread_barrier_t barrier;
- pthread_t child_thread_2, child_thread_3;
- void
- sigusr1_handler (int signo)
- {
- }
- void
- callme (void)
- {
- }
- void *
- child_function_3 (void *arg)
- {
- int my_number = (long) arg;
- volatile int *myp = (int *) &args[my_number];
- pthread_barrier_wait (&barrier);
- while (*myp > 0)
- {
- (*myp) ++;
- callme (); /* set breakpoint thread 3 here */
- }
- pthread_exit (NULL);
- }
- void *
- child_function_2 (void *arg)
- {
- int my_number = (long) arg;
- volatile int *myp = (int *) &args[my_number];
- pthread_barrier_wait (&barrier);
- while (*myp > 0)
- {
- (*myp) ++;
- callme (); /* set breakpoint thread 2 here */
- }
- pthread_exit (NULL);
- }
- static int
- wait_threads (void)
- {
- return 1; /* in wait_threads */
- }
- int
- main ()
- {
- int res;
- long i;
- signal (SIGUSR1, sigusr1_handler);
- /* Call these early so that PLTs for these are resolved soon,
- instead of in the threads. RTLD_NOW should work as well. */
- usleep (0);
- pthread_barrier_init (&barrier, NULL, 1);
- pthread_barrier_wait (&barrier);
- pthread_barrier_init (&barrier, NULL, 2);
- i = 0;
- args[i] = 1;
- res = pthread_create (&child_thread_2,
- NULL, child_function_2, (void *) i);
- pthread_barrier_wait (&barrier);
- callme ();
- i = 1;
- args[i] = 1;
- res = pthread_create (&child_thread_3,
- NULL, child_function_3, (void *) i);
- pthread_barrier_wait (&barrier);
- wait_threads (); /* set wait-threads breakpoint here */
- pthread_join (child_thread_2, NULL);
- pthread_join (child_thread_3, NULL);
- exit(EXIT_SUCCESS);
- }
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