gdb/testsuite/gdb.threads/leader-exit.c

   1 /* Clean exit of the thread group leader should not break GDB.
   2
   3    Copyright 2007-2013 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 <assert.h>
  20 #include <unistd.h>
  21
  22 static volatile pthread_t main_thread;
  23
  24 static void *
  25 start (void *arg)
  26 {
  27   int i;
  28
  29   i = pthread_join (main_thread, NULL);
  30   assert (i == 0);
  31
  32   return arg;   /* break-here */
  33 }
  34
  35 int
  36 main (void)
  37 {
  38   pthread_t thread;
  39   int i;
  40
  41   main_thread = pthread_self ();
  42
  43   i = pthread_create (&thread, NULL, start, NULL);
  44   assert (i == 0);
  45
  46   pthread_exit (NULL);
  47   /* NOTREACHED */
  48   return 0;
  49 }