1/*-
2 * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
3 * All rights reserved.
4 *
5 * Portions of this software were developed by SRI International and the
6 * University of Cambridge Computer Laboratory under DARPA/AFRL contract
7 * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
8 *
9 * Portions of this software were developed by the University of Cambridge
10 * Computer Laboratory as part of the CTSRD Project, with support from the
11 * UK Higher Education Innovation Fund (HEIF).
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <sys/cdefs.h>
36__FBSDID("$FreeBSD$");
37
38#include <sys/types.h>
39#include <string.h>
40#include <thread_db.h>
41
42#include "libpthread_db.h"
43
44void
45pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
46{
47	mcontext_t *mc;
48
49	mc = &uc->uc_mcontext;
50
51	memcpy(mc->mc_gpregs.gp_t, r->t, sizeof(mc->mc_gpregs.gp_t));
52	memcpy(mc->mc_gpregs.gp_s, r->s, sizeof(mc->mc_gpregs.gp_s));
53	memcpy(mc->mc_gpregs.gp_a, r->a, sizeof(mc->mc_gpregs.gp_a));
54	mc->mc_gpregs.gp_ra = r->ra;
55	mc->mc_gpregs.gp_sp = r->sp;
56	mc->mc_gpregs.gp_gp = r->gp;
57	mc->mc_gpregs.gp_tp = r->tp;
58	mc->mc_gpregs.gp_sepc = r->sepc;
59	mc->mc_gpregs.gp_sstatus = r->sstatus;
60}
61
62void
63pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
64{
65	const mcontext_t *mc;
66
67	mc = &uc->uc_mcontext;
68
69	memcpy(r->t, mc->mc_gpregs.gp_t, sizeof(mc->mc_gpregs.gp_t));
70	memcpy(r->s, mc->mc_gpregs.gp_s, sizeof(mc->mc_gpregs.gp_s));
71	memcpy(r->a, mc->mc_gpregs.gp_a, sizeof(mc->mc_gpregs.gp_a));
72	r->ra = mc->mc_gpregs.gp_ra;
73	r->sp = mc->mc_gpregs.gp_sp;
74	r->gp = mc->mc_gpregs.gp_gp;
75	r->tp = mc->mc_gpregs.gp_tp;
76	r->sepc = mc->mc_gpregs.gp_sepc;
77	r->sstatus = mc->mc_gpregs.gp_sstatus;
78}
79
80void
81pt_fpreg_to_ucontext(const struct fpreg *r __unused, ucontext_t *uc __unused)
82{
83
84	/* RISCVTODO */
85}
86
87void
88pt_ucontext_to_fpreg(const ucontext_t *uc __unused, struct fpreg *r __unused)
89{
90
91	/* RISCVTODO */
92}
93
94void
95pt_md_init(void)
96{
97}
98
99int
100pt_reg_sstep(struct reg *reg __unused, int step __unused)
101{
102
103	return (0);
104}
105