src/Unix/sigsegv.h

/*
 *  sigsegv.h - SIGSEGV signals support
 *
 *  Derived from Bruno Haible's work on his SIGSEGV library for clisp
 *  <http://clisp.sourceforge.net/>
 *
 *  Basilisk II (C) 1997-2002 Christian Bauer
 *
 *  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
 */

#ifndef SIGSEGV_H
#define SIGSEGV_H

// Address type
typedef char * sigsegv_address_t;

// Type of a SIGSEGV handler. Returns boolean expressing successful operation
typedef bool (*sigsegv_fault_handler_t)(sigsegv_address_t fault_address, sigsegv_address_t instruction_address);

// Type of a SIGSEGV state dump function
typedef void (*sigsegv_state_dumper_t)(sigsegv_address_t fault_address, sigsegv_address_t instruction_address);

// Install a SIGSEGV handler. Returns boolean expressing success
extern bool sigsegv_install_handler(sigsegv_fault_handler_t handler);

// Remove the user SIGSEGV handler, revert to default behavior
extern void sigsegv_uninstall_handler(void);

// Set SIGSEGV ignore state
extern void sigsegv_set_ignore_state(bool ignore_fault);

// Set callback function when we cannot handle the fault
extern void sigsegv_set_dump_state(sigsegv_state_dumper_t handler);

// Define an address that is bound to be invalid for a program counter
const sigsegv_address_t SIGSEGV_INVALID_PC = (sigsegv_address_t)(-1);

#endif /* SIGSEGV_H */
Revision:	1.4
Committed:	2002-05-16T15:48:06Z (22 years, 6 months ago) by gbeauche
Content type:	text/plain
Branch:	MAIN
CVS Tags:	nigel-build-12, nigel-build-13
Changes since 1.3:	+6 -3 lines
Log Message:	- video_vosh.h (Screen_fault_handler): Move unrecoverable fault case to... - main_unix.cpp (sigsegv_dump_state): ... Here. - sigsegv.h (sigsegv_fault_handler_t): Rename from sigsegv_handler_t. - sigsegv.h (sigsegv_state_dumper_t): New.
#	Content
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	* Basilisk II (C) 1997-2002 Christian Bauer
8	*
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_fault_handler_t)(sigsegv_address_t fault_address, sigsegv_address_t instruction_address);
32
33	// Type of a SIGSEGV state dump function
34	typedef void (*sigsegv_state_dumper_t)(sigsegv_address_t fault_address, sigsegv_address_t instruction_address);
35
36	// Install a SIGSEGV handler. Returns boolean expressing success
37	extern bool sigsegv_install_handler(sigsegv_fault_handler_t handler);
38
39	// Remove the user SIGSEGV handler, revert to default behavior
40	extern void sigsegv_uninstall_handler(void);
41
42	// Set SIGSEGV ignore state
43	extern void sigsegv_set_ignore_state(bool ignore_fault);
44
45	// Set callback function when we cannot handle the fault
46	extern void sigsegv_set_dump_state(sigsegv_state_dumper_t handler);
47
48	// Define an address that is bound to be invalid for a program counter
49	const sigsegv_address_t SIGSEGV_INVALID_PC = (sigsegv_address_t)(-1);
50
51	#endif /* SIGSEGV_H */