1/*-
2 * Copyright (c) 2001 Jake Burkholder.
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 * $FreeBSD$
27 */
28
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/reboot.h>
32#include <sys/cons.h>
33#include <sys/kdb.h>
34#include <sys/ktr.h>
35#include <sys/lock.h>
36#include <sys/pcpu.h>
37#include <sys/proc.h>
38#include <sys/smp.h>
39
40#include <machine/cpu.h>
41#include <machine/md_var.h>
42
43#include <vm/vm.h>
44#include <vm/pmap.h>
45
46#include <ddb/ddb.h>
47#include <ddb/db_access.h>
48#include <ddb/db_sym.h>
49#include <ddb/db_variables.h>
50
51#include <machine/atomic.h>
52#include <machine/setjmp.h>
53
54int
55db_read_bytes(vm_offset_t addr, size_t size, char *data)
56{
57	jmp_buf jb;
58	void *prev_jb;
59	char *src;
60	int ret;
61
62	prev_jb = kdb_jmpbuf(jb);
63	ret = setjmp(jb);
64	if (ret == 0) {
65		src = (char *)addr;
66		while (size-- > 0)
67			*data++ = *src++;
68	}
69	(void)kdb_jmpbuf(prev_jb);
70	return (ret);
71}
72
73int
74db_write_bytes(vm_offset_t addr, size_t size, char *data)
75{
76	jmp_buf jb;
77	void *prev_jb;
78	char *dst;
79	int ret;
80
81	prev_jb = kdb_jmpbuf(jb);
82	ret = setjmp(jb);
83	if (ret == 0) {
84		dst = (char *)addr;
85		while (size-- > 0)
86			*dst++ = *data++;
87	}
88	(void)kdb_jmpbuf(prev_jb);
89	return (ret);
90}
91
92void
93db_show_mdpcpu(struct pcpu *pc)
94{
95}
96