libpthread_md.c revision 181044 
1/*
2 * Copyright (c) 2006 Marcel Moolenaar
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: head/lib/libthread_db/arch/powerpc/libpthread_md.c 181044 2008-07-31 05:25:52Z marcel $");
29
30#include <string.h>
31#include <sys/types.h>
32#include <proc_service.h>
33#include <thread_db.h>
34
35#include "libpthread_db.h"
36
37void
38pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
39{
40	mcontext_t *mc = &uc->uc_mcontext;
41
42	memcpy(mc->mc_frame, r, MIN(sizeof(mc->mc_frame), sizeof(*r)));
43}
44
45void
46pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
47{
48	const mcontext_t *mc = &uc->uc_mcontext;
49
50	memcpy(r, mc->mc_frame, MIN(sizeof(mc->mc_frame), sizeof(*r)));
51}
52
53void
54pt_fpreg_to_ucontext(const struct fpreg *r, ucontext_t *uc)
55{
56	mcontext_t *mc = &uc->uc_mcontext;
57
58	memcpy(mc->mc_fpreg, r, MIN(sizeof(mc->mc_fpreg), sizeof(*r)));
59	mc->mc_flags |= _MC_FP_VALID;
60}
61
62void
63pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
64{
65	const mcontext_t *mc = &uc->uc_mcontext;
66
67	if (mc->mc_flags & _MC_FP_VALID)
68		memcpy(r, mc->mc_fpreg, MIN(sizeof(mc->mc_fpreg), sizeof(*r)));
69	else
70		memset(r, 0, sizeof(*r));
71}
72
73void
74pt_md_init(void)
75{
76}
77
78int
79pt_reg_sstep(struct reg *reg, int step)
80{
81
82	/* XXX */
83	return (0);
84}
85