gdb/testsuite/gdb.threads/fork-child-threads.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2008-2021 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 void *
  23 start (void *arg)
  24 {
  25   assert (0);
  26   return arg;
  27 }
  28
  29 int main(void)
  30 {
  31   pthread_t thread;
  32   int i;
  33
  34   switch (fork ())
  35     {
  36     case -1:
  37       assert (0);
  38     default:
  39       break;
  40     case 0:
  41       i = pthread_create (&thread, NULL, start, NULL);
  42       assert (i == 0);
  43       i = pthread_join (thread, NULL);
  44       assert (i == 0);
  45
  46       assert (0);
  47     }
  48
  49   return 0;
  50 }