| /* This testcase is part of GDB, the GNU debugger. |
| |
| Copyright 2004-2021 Free Software Foundation, Inc. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| #include <signal.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| extern void |
| keeper (int sig) |
| { |
| } |
| |
| volatile long v1 = 0; |
| volatile long v2 = 0; |
| volatile long v3 = 0; |
| |
| extern long |
| bowler (void) |
| { |
| /* Try to read address zero. Do it in a slightly convoluted way so |
| that more than one instruction is used. */ |
| return *(char *) (v1 + v2 + v3); |
| } |
| |
| int |
| main () |
| { |
| static volatile int i; |
| |
| struct sigaction act; |
| memset (&act, 0, sizeof act); |
| act.sa_handler = keeper; |
| sigaction (SIGSEGV, &act, NULL); |
| sigaction (SIGBUS, &act, NULL); |
| |
| bowler (); |
| return 0; |
| } |