gdb/testsuite/gdb.multi/watchpoint-multi-exit.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2016-2023 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 <stdlib.h>
  20 #include <sys/types.h>
  21 #include <sys/wait.h>
  22
  23 /* GDB sets watchpoint here.  */
  24 static volatile int __attribute__ ((used)) globalvar;
  25
  26 /* Whether it's expected that the child exits with a signal, vs
  27    exiting normally.  GDB sets this.  */
  28 static volatile int expect_signaled;
  29
  30 static void
  31 marker (void)
  32 {
  33 }
  34
  35 static void
  36 child_function (void)
  37 {
  38 }
  39
  40 int
  41 main (void)
  42 {
  43   pid_t child;
  44
  45   child = fork ();
  46   if (child == -1)
  47     exit (1);
  48   else if (child != 0)
  49     {
  50       int status, ret;
  51
  52       ret = waitpid (child, &status, 0);
  53       if (ret == -1)
  54         exit (2);
  55       else if (expect_signaled && !WIFSIGNALED (status))
  56         exit (3);
  57       else if (!expect_signaled && !WIFEXITED (status))
  58         exit (4);
  59       else
  60         marker ();
  61     }
  62   else
  63     child_function ();
  64
  65   exit (0);
  66 }