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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 <stdio.h>
- #include <string.h>
- #include <assert.h>
- static const char *image;
- static volatile pthread_t main_thread;
- static char *argv1 = "go away";
- static void *
- thread_execler (void *arg)
- {
- int i;
- i = pthread_join (main_thread, NULL);
- assert (i == 0);
- /* Exec ourselves again. */
- if (execl (image, image, argv1, NULL) == -1) /* break-here */
- {
- perror ("execl");
- abort ();
- }
- return NULL;
- }
- int
- main (int argc, char **argv)
- {
- pthread_t thread;
- int i;
- image = argv[0];
- /* Pass "inf" as argument to keep re-execing ad infinitum, which can
- be useful for manual testing. Passing any other argument exits
- immediately (and that's what the execl above does by
- default). */
- if (argc == 2 && strcmp (argv[1], "inf") == 0)
- argv1 = argv[1];
- else if (argc > 1)
- exit (0);
- main_thread = pthread_self ();
- i = pthread_create (&thread, NULL, thread_execler, NULL);
- assert (i == 0);
- pthread_exit (NULL);
- /* NOTREACHED */
- return 0;
- }
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