51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
/* Declarations for handling faults in the signal thread.
|
|
Copyright (C) 1994-2018 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 */
|