1*11efff7fSkettenis /* This testcase is part of GDB, the GNU debugger.
2*11efff7fSkettenis
3*11efff7fSkettenis Copyright 2004 Free Software Foundation, Inc.
4*11efff7fSkettenis
5*11efff7fSkettenis This program is free software; you can redistribute it and/or modify
6*11efff7fSkettenis it under the terms of the GNU General Public License as published by
7*11efff7fSkettenis the Free Software Foundation; either version 2 of the License, or
8*11efff7fSkettenis (at your option) any later version.
9*11efff7fSkettenis
10*11efff7fSkettenis This program is distributed in the hope that it will be useful,
11*11efff7fSkettenis but WITHOUT ANY WARRANTY; without even the implied warranty of
12*11efff7fSkettenis MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13*11efff7fSkettenis GNU General Public License for more details.
14*11efff7fSkettenis
15*11efff7fSkettenis You should have received a copy of the GNU General Public License
16*11efff7fSkettenis along with this program; if not, write to the Free Software
17*11efff7fSkettenis Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
18*11efff7fSkettenis 02111-1307, USA. */
19*11efff7fSkettenis
20*11efff7fSkettenis #include <signal.h>
21*11efff7fSkettenis #include <stdlib.h>
22*11efff7fSkettenis #include <string.h>
23*11efff7fSkettenis
24*11efff7fSkettenis extern void
keeper(int sig)25*11efff7fSkettenis keeper (int sig)
26*11efff7fSkettenis {
27*11efff7fSkettenis }
28*11efff7fSkettenis
29*11efff7fSkettenis volatile long v1 = 0;
30*11efff7fSkettenis volatile long v2 = 0;
31*11efff7fSkettenis volatile long v3 = 0;
32*11efff7fSkettenis
33*11efff7fSkettenis extern long
bowler(void)34*11efff7fSkettenis bowler (void)
35*11efff7fSkettenis {
36*11efff7fSkettenis /* Try to read address zero. Do it in a slightly convoluted way so
37*11efff7fSkettenis that more than one instruction is used. */
38*11efff7fSkettenis return *(char *) (v1 + v2 + v3);
39*11efff7fSkettenis }
40*11efff7fSkettenis
41*11efff7fSkettenis int
main()42*11efff7fSkettenis main ()
43*11efff7fSkettenis {
44*11efff7fSkettenis static volatile int i;
45*11efff7fSkettenis
46*11efff7fSkettenis struct sigaction act;
47*11efff7fSkettenis memset (&act, 0, sizeof act);
48*11efff7fSkettenis act.sa_handler = keeper;
49*11efff7fSkettenis sigaction (SIGSEGV, &act, NULL);
50*11efff7fSkettenis
51*11efff7fSkettenis bowler ();
52*11efff7fSkettenis return 0;
53*11efff7fSkettenis }
54