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gbeauche |
1.1 |
/* |
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* sigsegv.h - SIGSEGV signals support |
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* |
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* Derived from Bruno Haible's work on his SIGSEGV library for clisp |
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* <http://clisp.sourceforge.net/> |
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* |
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gbeauche |
1.11 |
* Basilisk II (C) 1997-2008 Christian Bauer |
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gbeauche |
1.1 |
* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#ifndef SIGSEGV_H |
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#define SIGSEGV_H |
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gbeauche |
1.10 |
#define SIGSEGV_MAJOR_VERSION 1 |
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#define SIGSEGV_MINOR_VERSION 0 |
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#define SIGSEGV_MICRO_VERSION 0 |
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#define SIGSEGV_CHECK_VERSION(MAJOR, MINOR, MICRO) \ |
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(SIGSEGV_MAJOR_VERSION > (MAJOR) || \ |
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(SIGSEGV_MAJOR_VERSION == (MAJOR) && SIGSEGV_MINOR_VERSION > (MINOR)) || \ |
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(SIGSEGV_MAJOR_VERSION == (MAJOR) && SIGSEGV_MINOR_VERSION == (MINOR) && SIGSEGV_MICRO_VERSION >= (MICRO))) |
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gbeauche |
1.1 |
// Address type |
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gbeauche |
1.10 |
typedef char *sigsegv_address_t; |
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// SIGSEGV handler argument (forward declaration) |
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struct sigsegv_info_t; |
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gbeauche |
1.1 |
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gbeauche |
1.6 |
// SIGSEGV handler return state |
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enum sigsegv_return_t { |
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SIGSEGV_RETURN_SUCCESS, |
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SIGSEGV_RETURN_FAILURE, |
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gbeauche |
1.12 |
SIGSEGV_RETURN_SKIP_INSTRUCTION |
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gbeauche |
1.6 |
}; |
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gbeauche |
1.1 |
// Type of a SIGSEGV handler. Returns boolean expressing successful operation |
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gbeauche |
1.10 |
typedef sigsegv_return_t (*sigsegv_fault_handler_t)(sigsegv_info_t *sip); |
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gbeauche |
1.4 |
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// Type of a SIGSEGV state dump function |
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gbeauche |
1.10 |
typedef void (*sigsegv_state_dumper_t)(sigsegv_info_t *sip); |
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gbeauche |
1.1 |
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// Install a SIGSEGV handler. Returns boolean expressing success |
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gbeauche |
1.4 |
extern bool sigsegv_install_handler(sigsegv_fault_handler_t handler); |
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gbeauche |
1.1 |
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// Remove the user SIGSEGV handler, revert to default behavior |
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extern void sigsegv_uninstall_handler(void); |
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gbeauche |
1.3 |
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// Set callback function when we cannot handle the fault |
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gbeauche |
1.4 |
extern void sigsegv_set_dump_state(sigsegv_state_dumper_t handler); |
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gbeauche |
1.3 |
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gbeauche |
1.10 |
// Return the address of the invalid memory reference |
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extern sigsegv_address_t sigsegv_get_fault_address(sigsegv_info_t *sip); |
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// Return the address of the instruction that caused the fault, or |
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// SIGSEGV_INVALID_ADDRESS if we could not retrieve this information |
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extern sigsegv_address_t sigsegv_get_fault_instruction_address(sigsegv_info_t *sip); |
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gbeauche |
1.1 |
// Define an address that is bound to be invalid for a program counter |
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gbeauche |
1.10 |
const sigsegv_address_t SIGSEGV_INVALID_ADDRESS = (sigsegv_address_t)(-1UL); |
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gbeauche |
1.1 |
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#endif /* SIGSEGV_H */ |
