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/* |
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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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* Basilisk II (C) 1997-2004 Christian Bauer |
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* |
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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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|
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#ifndef SIGSEGV_H |
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#define SIGSEGV_H |
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|
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// Address type |
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typedef char * sigsegv_address_t; |
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|
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// Transfer type (intended to be used a mask for sigsegv_*_ignore_range()) |
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enum sigsegv_transfer_type_t { |
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SIGSEGV_TRANSFER_UNKNOWN = 0, |
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SIGSEGV_TRANSFER_LOAD = 1, |
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SIGSEGV_TRANSFER_STORE = 2, |
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}; |
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|
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// 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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SIGSEGV_RETURN_SKIP_INSTRUCTION, |
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}; |
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|
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// Type of a SIGSEGV handler. Returns boolean expressing successful operation |
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typedef sigsegv_return_t (*sigsegv_fault_handler_t)(sigsegv_address_t fault_address, sigsegv_address_t instruction_address); |
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|
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// Type of a SIGSEGV state dump function |
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typedef void (*sigsegv_state_dumper_t)(sigsegv_address_t fault_address, sigsegv_address_t instruction_address); |
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|
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// Install a SIGSEGV handler. Returns boolean expressing success |
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extern bool sigsegv_install_handler(sigsegv_fault_handler_t handler); |
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|
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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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|
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// Set callback function when we cannot handle the fault |
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extern void sigsegv_set_dump_state(sigsegv_state_dumper_t handler); |
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|
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// Define an address that is bound to be invalid for a program counter |
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const sigsegv_address_t SIGSEGV_INVALID_PC = (sigsegv_address_t)(-1); |
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|
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#endif /* SIGSEGV_H */ |
