| /* Test program for non-stop debugging. |
| Copyright 1996-2016 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| 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 <stdio.h> |
| #include <stdlib.h> |
| #include <pthread.h> |
| #include <unistd.h> |
| |
| int exit_first_thread = 0; |
| |
| void break_at_me (int id, int i) |
| { |
| } |
| |
| void * |
| worker (void *arg) |
| { |
| int id = *(int *)arg; |
| int i = 0; |
| |
| /* When gdb is running, it sets hidden breakpoints in the thread |
| library. The signals caused by these hidden breakpoints can |
| cause system calls such as 'sleep' to return early. Pay attention |
| to the return value from 'sleep' to get the full sleep. */ |
| for (;;++i) |
| { |
| int unslept = 1; |
| while (unslept > 0) |
| unslept = sleep (unslept); |
| |
| if (exit_first_thread && id == 0) |
| return NULL; |
| |
| break_at_me (id, i); |
| } |
| } |
| |
| pthread_t |
| create_thread (int id) |
| { |
| pthread_t tid; |
| /* This memory will be leaked, we don't care for a test. */ |
| int *id2 = malloc (sizeof (int)); |
| *id2 = id; |
| |
| if (pthread_create (&tid, NULL, worker, (void *) id2)) |
| { |
| perror ("pthread_create 1"); |
| exit (1); |
| } |
| return tid; |
| } |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| pthread_t tid; |
| create_thread (0); |
| sleep (1); |
| tid = create_thread (1); |
| pthread_join (tid, NULL); |
| |
| return 0; |
| } |
| |