gdb/testsuite/gdb.threads/thread-execl.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2009-2022 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #include <pthread.h>
  19 #include <unistd.h>
  20 #include <stdlib.h>
  21 #include <stdio.h>
  22
  23 static const char *image;
  24
  25 void *
  26 thread_execler (void *arg)
  27 {
  28   /* Exec ourselves again.  */
  29   if (execl (image, image, NULL) == -1)
  30     {
  31       perror ("execl");
  32       abort ();
  33     }
  34
  35   return NULL;
  36 }
  37
  38 int
  39 main (int argc, char **argv)
  40 {
  41   pthread_t thread;
  42
  43   image = argv[0];
  44
  45   pthread_create (&thread, NULL, thread_execler, NULL);
  46   pthread_join (thread, NULL);
  47
  48   return 0;
  49 }