/* This testcase is part of GDB, the GNU debugger. Copyright 2009, 2010, 2011 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 . */ #include #include #include #include static const char *image; static char *argv1 = "go away"; static void * thread_execler (void *arg) { /* 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); i = pthread_create (&thread, NULL, thread_execler, NULL); assert (i == 0); pthread_join (thread, NULL); return 0; }