81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/* Test program for non-stop debugging.
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Copyright 1996-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <unistd.h>
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int exit_first_thread = 0;
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void break_at_me (int id, int i)
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{
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}
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void *
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worker (void *arg)
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{
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int id = *(int *)arg;
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int i = 0;
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/* When gdb is running, it sets hidden breakpoints in the thread
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library. The signals caused by these hidden breakpoints can
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cause system calls such as 'sleep' to return early. Pay attention
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to the return value from 'sleep' to get the full sleep. */
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for (;;++i)
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{
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int unslept = 1;
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while (unslept > 0)
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unslept = sleep (unslept);
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if (exit_first_thread && id == 0)
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return NULL;
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break_at_me (id, i);
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}
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}
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pthread_t
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create_thread (int id)
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{
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pthread_t tid;
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/* This memory will be leaked, we don't care for a test. */
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int *id2 = malloc (sizeof (int));
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*id2 = id;
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if (pthread_create (&tid, NULL, worker, (void *) id2))
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{
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perror ("pthread_create 1");
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exit (1);
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}
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return tid;
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}
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int
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main (int argc, char *argv[])
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{
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pthread_t tid;
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create_thread (0);
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sleep (1);
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tid = create_thread (1);
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pthread_join (tid, NULL);
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return 0;
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}
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