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glibc/hurd/hurdfault.h
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/* Declarations for handling faults in the signal thread. | |
Copyright (C) 1994-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library 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 | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#ifndef _HURD_FAULT_H | |
#define _HURD_FAULT_H | |
#include <hurd/sigpreempt.h> | |
#include <setjmp.h> | |
/* Call this before code that might fault in the signal thread; SIGNO is | |
the signal expected to possibly arrive. This behaves like setjmp: it | |
returns zero the first time, and returns again nonzero if the signal | |
does arrive. */ | |
#define _hurdsig_catch_fault(sigset, firstcode, lastcode) \ | |
(_hurdsig_fault_preemptor.signals = (sigset), \ | |
_hurdsig_fault_preemptor.first = (long int) (firstcode), \ | |
_hurdsig_fault_preemptor.last = (long int) (lastcode), \ | |
setjmp (_hurdsig_fault_env)) | |
/* Call this at the end of a section protected by _hurdsig_catch_fault. */ | |
#define _hurdsig_end_catch_fault() \ | |
(_hurdsig_fault_preemptor.signals = 0) | |
extern jmp_buf _hurdsig_fault_env; | |
extern struct hurd_signal_preemptor _hurdsig_fault_preemptor; | |
#define _hurdsig_catch_memory_fault(object) \ | |
_hurdsig_catch_fault (sigmask (SIGSEGV) | sigmask (SIGBUS), \ | |
(object), (object) + 1) | |
#endif /* hurdfault.h */ |