1/* This testcase is part of GDB, the GNU debugger.
2
3   Copyright 2004 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 2 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, write to the Free Software
17   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
18   02111-1307, USA.  */
19
20#include <signal.h>
21#include <stdlib.h>
22#include <string.h>
23
24extern void
25keeper (int sig)
26{
27}
28
29volatile long v1 = 0;
30volatile long v2 = 0;
31volatile long v3 = 0;
32
33extern long
34bowler (void)
35{
36  /* Try to read address zero.  Do it in a slightly convoluted way so
37     that more than one instruction is used.  */
38  return *(char *) (v1 + v2 + v3);
39}
40
41int
42main ()
43{
44  static volatile int i;
45
46  struct sigaction act;
47  memset (&act, 0, sizeof act);
48  act.sa_handler = keeper;
49  sigaction (SIGSEGV, &act, NULL);
50
51  bowler ();
52  return 0;
53}
54