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1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
b811d2c2 | 3 | Copyright 2004-2020 Free Software Foundation, Inc. |
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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 | |
a9762ec7 | 7 | the Free Software Foundation; either version 3 of the License, or |
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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. | |
a9762ec7 | 14 | |
45a83408 | 15 | You should have received a copy of the GNU General Public License |
a9762ec7 | 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
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17 | |
18 | #include <signal.h> | |
19 | #include <stdlib.h> | |
20 | #include <string.h> | |
21 | ||
22 | extern void | |
23 | keeper (int sig) | |
24 | { | |
25 | } | |
26 | ||
27 | volatile long v1 = 0; | |
28 | volatile long v2 = 0; | |
29 | volatile long v3 = 0; | |
30 | ||
31 | extern long | |
32 | bowler (void) | |
33 | { | |
34 | /* Try to read address zero. Do it in a slightly convoluted way so | |
35 | that more than one instruction is used. */ | |
36 | return *(char *) (v1 + v2 + v3); | |
37 | } | |
38 | ||
39 | int | |
40 | main () | |
41 | { | |
42 | static volatile int i; | |
43 | ||
44 | struct sigaction act; | |
45 | memset (&act, 0, sizeof act); | |
46 | act.sa_handler = keeper; | |
47 | sigaction (SIGSEGV, &act, NULL); | |
aacd552b | 48 | sigaction (SIGBUS, &act, NULL); |
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49 | |
50 | bowler (); | |
51 | return 0; | |
52 | } |