libpthread_md.c revision 317005 
1/*
2 * Copyright (c) 2007 Olivier Houchard
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: stable/11/lib/libthread_db/arch/arm/libpthread_md.c 317005 2017-04-16 07:33:47Z mmel $");
29
30#include <sys/types.h>
31#include <string.h>
32#include <thread_db.h>
33
34#include "libpthread_db.h"
35
36void
37pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
38{
39	mcontext_t *mc = &uc->uc_mcontext;
40	__greg_t *gr = mc->__gregs;
41
42	gr[_REG_R0] = r->r[0];
43	gr[_REG_R1] = r->r[1];
44	gr[_REG_R2] = r->r[2];
45	gr[_REG_R3] = r->r[3];
46	gr[_REG_R4] = r->r[4];
47	gr[_REG_R5] = r->r[5];
48	gr[_REG_R6] = r->r[6];
49	gr[_REG_R7] = r->r[7];
50	gr[_REG_R8] = r->r[8];
51	gr[_REG_R9] = r->r[9];
52	gr[_REG_R10] = r->r[10];
53	gr[_REG_R11] = r->r[11];
54	gr[_REG_R12] = r->r[12];
55	gr[_REG_SP] = r->r_sp;
56	gr[_REG_LR] = r->r_lr;
57	gr[_REG_PC] = r->r_pc;
58	gr[_REG_CPSR] = r->r_cpsr;
59}
60
61void
62pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
63{
64	const mcontext_t *mc = &uc->uc_mcontext;
65
66	const __greg_t *gr = mc->__gregs;
67
68	r->r[0] = gr[_REG_R0];
69	r->r[1] = gr[_REG_R1];
70	r->r[2] = gr[_REG_R2];
71	r->r[3] = gr[_REG_R3];
72	r->r[4] = gr[_REG_R4];
73	r->r[5] = gr[_REG_R5];
74	r->r[6] = gr[_REG_R6];
75	r->r[7] = gr[_REG_R7];
76	r->r[8] = gr[_REG_R8];
77	r->r[9] = gr[_REG_R9];
78	r->r[10] = gr[_REG_R10];
79	r->r[11] = gr[_REG_R11];
80	r->r[12] = gr[_REG_R12];
81	r->r_sp = gr[_REG_SP];
82	r->r_lr = gr[_REG_LR];
83	r->r_pc = gr[_REG_PC];
84	r->r_cpsr = gr[_REG_CPSR];
85}
86
87void
88pt_fpreg_to_ucontext(const struct fpreg *r __unused, ucontext_t *uc)
89{
90	mcontext_t *mc = &uc->uc_mcontext;
91
92	/* XXX */
93	mc->mc_vfp_size = 0;
94	mc->mc_vfp_ptr = NULL;
95	memset(mc->mc_spare, 0, sizeof(mc->mc_spare));
96}
97
98void
99pt_ucontext_to_fpreg(const ucontext_t *uc __unused, struct fpreg *r)
100{
101
102	/* XXX */
103	memset(r, 0, sizeof(*r));
104}
105
106void
107pt_md_init(void)
108{
109}
110
111int
112pt_reg_sstep(struct reg *reg __unused, int step __unused)
113{
114
115	/* XXX */
116	return (0);
117}
118