91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/*
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* Copyright (c) 2004 Marcel Moolenaar
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* Copyright (c) 2011 Marius Strobl <marius@FreeBSD.org>
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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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*
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <string.h>
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#include <thread_db.h>
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#include <ucontext.h>
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#include <machine/fsr.h>
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#include "libpthread_db.h"
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void
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pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
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{
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memcpy(&uc->uc_mcontext, r, MIN(sizeof(uc->uc_mcontext), sizeof(*r)));
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}
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void
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pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
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{
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memcpy(r, &uc->uc_mcontext, MIN(sizeof(uc->uc_mcontext), sizeof(*r)));
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}
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void
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pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc)
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{
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mcontext_t *mc = &uc->uc_mcontext;
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memcpy(mc->mc_fp, r->fr_regs, MIN(sizeof(mc->mc_fp),
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sizeof(r->fr_regs)));
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mc->mc_fsr = r->fr_fsr;
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mc->mc_gsr = r->fr_gsr;
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mc->mc_fprs |= FPRS_FEF;
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}
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void
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pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
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{
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const mcontext_t *mc = &uc->uc_mcontext;
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if ((mc->mc_fprs & FPRS_FEF) != 0) {
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memcpy(r->fr_regs, mc->mc_fp, MIN(sizeof(mc->mc_fp),
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sizeof(r->fr_regs)));
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r->fr_fsr = mc->mc_fsr;
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r->fr_gsr = mc->mc_gsr;
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} else
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memset(r, 0, sizeof(*r));
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}
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void
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pt_md_init(void)
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{
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}
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int
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pt_reg_sstep(struct reg *reg __unused, int step __unused)
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{
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return (0);
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}
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