1/* This testcase is part of GDB, the GNU debugger.
2
3   Copyright 2011-2023 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
20static void
21marker () {}
22
23int
24main (void)
25{
26  int pid;
27
28  pid = vfork ();
29  if (pid == -1)
30    {
31      return 1;
32    }
33  else if (pid != 0)
34    {
35    }
36  else
37    {
38      _exit (0);
39    }
40
41  pid = vfork ();
42  if (pid == -1)
43    {
44      return 1;
45    }
46  else if (pid != 0)
47    {
48    }
49  else
50    {
51      _exit (0);
52    }
53
54  pid = vfork ();
55  if (pid == -1)
56    {
57      return 1;
58    }
59  else if (pid != 0)
60    {
61    }
62  else
63    {
64      _exit (0);
65    }
66
67  marker ();
68  return 0;
69
70}
71