| /* This testcase is part of GDB, the GNU debugger. |
| |
| Copyright 2002, 2003, 2004, 2007, 2008 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/>. |
| |
| This file is based on schedlock.c. */ |
| |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <pthread.h> |
| |
| int THREADS = 10; |
| unsigned int *args; |
| volatile int done = 0; |
| |
| void * |
| thread_function (void *arg) |
| { |
| int my_number = (long) arg; |
| volatile int *myp = (volatile int *) &args[my_number]; |
| |
| /* Don't run forever. Run just short of it :) */ |
| while (*myp > 0 && !done) |
| { |
| (*myp)++; /* set breakpoint here */ |
| } |
| |
| if (done) |
| usleep (100); /* Some time to make sure we don't mask any bad |
| SIGTRAP handling. */ |
| |
| pthread_exit (NULL); |
| } |
| |
| int |
| main (int argc, char **argv) |
| { |
| int res; |
| pthread_t *threads; |
| void *thread_result; |
| long i = 0; |
| |
| threads = malloc (THREADS * sizeof (pthread_t)); |
| args = malloc (THREADS * sizeof (unsigned int)); |
| |
| for (i = 0; i < THREADS; i++) |
| { |
| args[i] = 1; /* Init value. */ |
| res = pthread_create (&threads[i], |
| NULL, |
| thread_function, |
| (void *) i); |
| } |
| |
| for (i = 0; i < THREADS; i++) |
| pthread_join (threads[i], &thread_result); |
| |
| exit(EXIT_SUCCESS); |
| } |