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root/cebix/BasiliskII/src/Unix/sigsegv.h
Revision: 1.3
Committed: 2002-05-12T11:10:50Z (22 years, 2 months ago) by gbeauche
Content type: text/plain
Branch: MAIN
Changes since 1.2: +6 -0 lines
Log Message:
Implement the "ignoresegv" feature from SheepShaver. This is Unix-specific
so far. Target platform is currently Linux/x86.

File Contents

# User Rev Content
1 gbeauche 1.1 /*
2     * sigsegv.h - SIGSEGV signals support
3     *
4     * Derived from Bruno Haible's work on his SIGSEGV library for clisp
5     * <http://clisp.sourceforge.net/>
6     *
7 cebix 1.2 * Basilisk II (C) 1997-2002 Christian Bauer
8 gbeauche 1.1 *
9     * This program is free software; you can redistribute it and/or modify
10     * it under the terms of the GNU General Public License as published by
11     * the Free Software Foundation; either version 2 of the License, or
12     * (at your option) any later version.
13     *
14     * This program is distributed in the hope that it will be useful,
15     * but WITHOUT ANY WARRANTY; without even the implied warranty of
16     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17     * GNU General Public License for more details.
18     *
19     * You should have received a copy of the GNU General Public License
20     * along with this program; if not, write to the Free Software
21     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22     */
23    
24     #ifndef SIGSEGV_H
25     #define SIGSEGV_H
26    
27     // Address type
28     typedef char * sigsegv_address_t;
29    
30     // Type of a SIGSEGV handler. Returns boolean expressing successful operation
31     typedef bool (*sigsegv_handler_t)(sigsegv_address_t fault_address, sigsegv_address_t instruction_address);
32    
33     // Install a SIGSEGV handler. Returns boolean expressing success
34     extern bool sigsegv_install_handler(sigsegv_handler_t handler);
35    
36     // Remove the user SIGSEGV handler, revert to default behavior
37     extern void sigsegv_uninstall_handler(void);
38    
39 gbeauche 1.3 // Set SIGSEGV ignore state
40     extern void sigsegv_set_ignore_state(bool ignore_fault);
41    
42     // Set callback function when we cannot handle the fault
43     extern void sigsegv_set_dump_state(sigsegv_handler_t handler);
44    
45 gbeauche 1.1 // Define an address that is bound to be invalid for a program counter
46     const sigsegv_address_t SIGSEGV_INVALID_PC = (sigsegv_address_t)(-1);
47    
48     #endif /* SIGSEGV_H */