103 lines
4.2 KiB
C
103 lines
4.2 KiB
C
/* $NetBSD: signal.h,v 1.8 2003/01/18 07:10:33 thorpej Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1989, 1991 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)signal.h 7.16 (Berkeley) 3/17/91
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*/
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/* All bugs are subject to removal without further notice */
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#ifndef _VAX_SIGNAL_H_
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#define _VAX_SIGNAL_H_
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typedef int sig_atomic_t;
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
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!defined(_XOPEN_SOURCE)
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/*
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* Information pushed on stack when a signal is delivered.
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* This is used by the kernel to restore state following
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* execution of the signal handler. It is also made available
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* to the handler to allow it to restore state properly if
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* a non-standard exit is performed.
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*/
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#if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
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struct sigcontext13 {
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int sc_onstack; /* sigstack state to restore */
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int sc_mask; /* signal mask to restore (old style) */
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int sc_sp; /* sp to restore */
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int sc_fp; /* fp to restore */
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int sc_ap; /* ap to restore */
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int sc_pc; /* pc to restore */
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int sc_ps; /* psl to restore */
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};
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#endif /* __LIBC12_SOURCE__ || _KERNEL */
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struct sigcontext {
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int sc_onstack; /* sigstack state to restore */
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int __sc_mask13; /* signal mask to restore (old style) */
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int sc_sp; /* sp to restore */
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int sc_fp; /* fp to restore */
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int sc_ap; /* ap to restore */
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int sc_pc; /* pc to restore */
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int sc_ps; /* psl to restore */
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sigset_t sc_mask; /* signal mask to restore (new style) */
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};
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/*
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* The following macros are used to convert from a ucontext to sigcontext,
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* and vice-versa. This is for building a sigcontext to deliver to old-style
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* signal handlers, and converting back (in the event the handler modifies
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* the context).
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*/
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#define _MCONTEXT_TO_SIGCONTEXT(uc, sc) \
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do { \
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(sc)->sc_sp = (uc)->uc_mcontext.__gregs[_REG_SP]; \
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(sc)->sc_fp = (uc)->uc_mcontext.__gregs[_REG_FP]; \
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(sc)->sc_ap = (uc)->uc_mcontext.__gregs[_REG_AP]; \
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(sc)->sc_pc = (uc)->uc_mcontext.__gregs[_REG_PC]; \
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(sc)->sc_ps = (uc)->uc_mcontext.__gregs[_REG_PSL]; \
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} while (/*CONSTCOND*/0)
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#define _SIGCONTEXT_TO_MCONTEXT(sc, uc) \
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do { \
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(uc)->uc_mcontext.__gregs[_REG_SP] = (sc)->sc_sp; \
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(uc)->uc_mcontext.__gregs[_REG_FP] = (sc)->sc_fp; \
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(uc)->uc_mcontext.__gregs[_REG_AP] = (sc)->sc_ap; \
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(uc)->uc_mcontext.__gregs[_REG_PC] = (sc)->sc_pc; \
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(uc)->uc_mcontext.__gregs[_REG_PSL] = (sc)->sc_ps; \
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} while (/*CONSTCOND*/0)
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#endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
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#endif /* !_VAX_SIGNAL_H_ */
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