95 lines
3.6 KiB
C
95 lines
3.6 KiB
C
/* $NetBSD: pthread_md.c,v 1.3 2003/03/08 08:03:37 lukem Exp $ */
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/*-
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* Copyright (c) 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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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 NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: pthread_md.c,v 1.3 2003/03/08 08:03:37 lukem Exp $");
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#define __PTHREAD_SIGNAL_PRIVATE
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#include <assert.h>
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#include "pthread.h"
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#include "pthread_int.h"
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/*
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* We only need this to know how much data to copy.
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*/
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static const int exframesize[] = {
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FMT0SIZE, /* type 0 - normal (68020/030/040/060) */
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FMT1SIZE, /* type 1 - throwaway (68020/030/040) */
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FMT2SIZE, /* type 2 - normal 6-word (68020/030/040/060) */
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FMT3SIZE, /* type 3 - FP post-instruction (68040/060) */
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FMT4SIZE, /* type 4 - access error/fp disabled (68060) */
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-1, -1, /* type 5-6 - undefined */
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FMT7SIZE, /* type 7 - access error (68040) */
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58, /* type 8 - bus fault (68010) */
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FMT9SIZE, /* type 9 - coprocessor mid-instruction (68020/030) */
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FMTASIZE, /* type A - short bus fault (68020/030) */
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FMTBSIZE, /* type B - long bus fault (68020/030) */
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-1, -1, -1, -1 /* type C-F - undefined */
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};
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#define _SIGSTATE_EXFRAMESIZE(fmt) exframesize[(fmt)]
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/*
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* m68k signal contexts are quite screwey, so we have to go through
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* a fair bit of effort to convert them.
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*/
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void
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pthread__ucontext_to_sigcontext(const sigset_t *mask, ucontext_t *uc,
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struct pthread__sigcontext *psc)
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{
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uc->uc_sigmask = *mask;
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_MCONTEXT_TO_SIGSTATE(uc, &psc->psc_state); /* must be first */
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_UCONTEXT_TO_SIGCONTEXT(uc, &psc->psc_context);
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psc->psc_context.sc_ap = (int) &psc->psc_state;
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}
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void
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pthread__sigcontext_to_ucontext(const struct pthread__sigcontext *psc,
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ucontext_t *uc)
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{
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_SIGSTATE_TO_MCONTEXT(&psc->psc_state, uc); /* must be first */
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_SIGCONTEXT_TO_UCONTEXT(&psc->psc_context, uc);
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uc->uc_flags &= ~_UC_SIGMASK;
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}
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