gdb/testsuite/gdb.threads/vfork-multi-inferior.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 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 <unistd.h>
  19 #include <sys/wait.h>
  20 #include <assert.h>
  21
  22 static void
  23 should_break_here (void)
  24 {
  25 }
  26
  27 int
  28 main (void)
  29 {
  30   int i;
  31
  32   for (i = 0; i < NR_LOOPS; i++)
  33     {
  34       int pid = vfork ();
  35
  36       if (pid != 0)
  37         {
  38           /* Parent */
  39           int stat;
  40           int ret = waitpid (pid, &stat, 0);
  41           assert (ret == pid);
  42           assert (WIFEXITED (stat));
  43           assert (WEXITSTATUS (stat) == 12);
  44
  45           should_break_here ();
  46         }
  47       else
  48         {
  49           /* Child */
  50           _exit(12);
  51         }
  52     }
  53
  54   return 0;
  55 }