| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 |
- /* Declarations for handling faults in the signal thread.
- Copyright (C) 1994-2019 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 */
|
