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45a83408 AC |
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 | ||
24 | extern void | |
25 | keeper (int sig) | |
26 | { | |
27 | } | |
28 | ||
29 | volatile long v1 = 0; | |
30 | volatile long v2 = 0; | |
31 | volatile long v3 = 0; | |
32 | ||
33 | extern long | |
34 | bowler (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 | ||
41 | int | |
42 | main () | |
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 | } |