111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
/*-
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* Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
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* All rights reserved.
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*
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* Portions of this software were developed by SRI International and the
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* University of Cambridge Computer Laboratory under DARPA/AFRL contract
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* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
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*
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* Portions of this software were developed by the University of Cambridge
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* Computer Laboratory as part of the CTSRD Project, with support from the
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* UK Higher Education Innovation Fund (HEIF).
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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#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 "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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mcontext_t *mc;
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mc = &uc->uc_mcontext;
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memcpy(mc->mc_gpregs.gp_t, r->t, sizeof(mc->mc_gpregs.gp_t));
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memcpy(mc->mc_gpregs.gp_s, r->s, sizeof(mc->mc_gpregs.gp_s));
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memcpy(mc->mc_gpregs.gp_a, r->a, sizeof(mc->mc_gpregs.gp_a));
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mc->mc_gpregs.gp_ra = r->ra;
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mc->mc_gpregs.gp_sp = r->sp;
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mc->mc_gpregs.gp_gp = r->gp;
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mc->mc_gpregs.gp_tp = r->tp;
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mc->mc_gpregs.gp_sepc = r->sepc;
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mc->mc_gpregs.gp_sstatus = r->sstatus;
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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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const mcontext_t *mc;
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mc = &uc->uc_mcontext;
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memcpy(r->t, mc->mc_gpregs.gp_t, sizeof(mc->mc_gpregs.gp_t));
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memcpy(r->s, mc->mc_gpregs.gp_s, sizeof(mc->mc_gpregs.gp_s));
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memcpy(r->a, mc->mc_gpregs.gp_a, sizeof(mc->mc_gpregs.gp_a));
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r->ra = mc->mc_gpregs.gp_ra;
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r->sp = mc->mc_gpregs.gp_sp;
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r->gp = mc->mc_gpregs.gp_gp;
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r->tp = mc->mc_gpregs.gp_tp;
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r->sepc = mc->mc_gpregs.gp_sepc;
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r->sstatus = mc->mc_gpregs.gp_sstatus;
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}
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void
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pt_fpreg_to_ucontext(const struct fpreg *r __unused, ucontext_t *uc __unused)
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{
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mcontext_t *mc = &uc->uc_mcontext;
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memcpy(&mc->mc_fpregs, r, sizeof(*r));
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mc->mc_flags |= _MC_FP_VALID;
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}
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void
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pt_ucontext_to_fpreg(const ucontext_t *uc __unused, struct fpreg *r __unused)
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{
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const mcontext_t *mc = &uc->uc_mcontext;
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if (mc->mc_flags & _MC_FP_VALID)
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memcpy(r, &mc->mc_fpregs, sizeof(*r));
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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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