| /* This testcase is part of GDB, the GNU debugger. |
| |
| Copyright 1996, 1999, 2003 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 2 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, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| #include <signal.h> |
| #include <setjmp.h> |
| #include <stdlib.h> |
| |
| enum tests { |
| code_entry_point, code_descriptor, data_pointer |
| }; |
| |
| static volatile enum tests test; |
| |
| /* Some basic types and zero buffers. */ |
| |
| typedef long data_t; |
| typedef long code_t (void); |
| static volatile data_t *data[10]; |
| static volatile code_t *code[10]; |
| |
| sigjmp_buf env; |
| |
| extern void |
| keeper (int sig) |
| { |
| siglongjmp (env, 0); |
| } |
| |
| extern long |
| bowler (void) |
| { |
| switch (test) |
| { |
| case data_pointer: |
| return *data[0]; |
| case code_entry_point: |
| return code[0] (); |
| case code_descriptor: |
| return ((code_t *) &code) (); |
| } |
| } |
| |
| int |
| main () |
| { |
| static volatile int i; |
| |
| struct sigaction act; |
| memset (&act, 0, sizeof act); |
| act.sa_handler = keeper; |
| sigaction (SIGSEGV, &act, NULL); |
| |
| for (i = 0; i < 10; i++) |
| { |
| sigsetjmp (env, 1); |
| bowler (); |
| } |
| } |