kvm_sh3.c revision 1.6 
1/*	$NetBSD: kvm_sh3.c,v 1.6 2003/08/07 16:44:39 agc Exp $	*/
2
3/*-
4 * Copyright (c) 1989, 1992, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software developed by the Computer Systems
8 * Engineering group at Lawrence Berkeley Laboratory under DARPA contract
9 * BG 91-66 and contributed to Berkeley.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include <sys/cdefs.h>
37#if defined(LIBC_SCCS) && !defined(lint)
38#if 0
39static char sccsid[] = "@(#)kvm_hp300.c	8.1 (Berkeley) 6/4/93";
40#else
41__RCSID("$NetBSD: kvm_sh3.c,v 1.6 2003/08/07 16:44:39 agc Exp $");
42#endif
43#endif /* LIBC_SCCS and not lint */
44
45/*
46 * SH3 machine dependent routines for kvm.
47 */
48
49#include <sys/param.h>
50#include <sys/user.h>
51#include <sys/proc.h>
52#include <sys/stat.h>
53#include <sys/kcore.h>
54#include <stdlib.h>
55#include <unistd.h>
56#include <nlist.h>
57#include <kvm.h>
58
59#include <uvm/uvm_extern.h>
60
61#include <limits.h>
62#include <db.h>
63
64#include "kvm_private.h"
65
66#include <machine/pte.h>
67#include <machine/vmparam.h>
68
69#ifndef btop
70#define	btop(x)		(((unsigned)(x)) >> PGSHIFT)	/* XXX */
71#define	ptob(x)		((caddr_t)((x) << PGSHIFT))	/* XXX */
72#endif
73
74void
75_kvm_freevtop(kd)
76	kvm_t *kd;
77{
78
79	/* Not actually used for anything right now, but safe. */
80	if (kd->vmst != 0)
81		free(kd->vmst);
82}
83
84/*ARGSUSED*/
85int
86_kvm_initvtop(kd)
87	kvm_t *kd;
88{
89
90	return (0);
91}
92
93/*
94 * Translate a kernel virtual address to a physical address.
95 */
96int
97_kvm_kvatop(kd, va, pa)
98	kvm_t *kd;
99	u_long va;
100	u_long *pa;
101{
102	_kvm_err(kd, 0, "vatop not yet implemented!");
103	return 0;
104}
105
106/*
107 * Translate a physical address to a file-offset in the crash dump.
108 */
109off_t
110_kvm_pa2off(kd, pa)
111	kvm_t *kd;
112	u_long pa;
113{
114	_kvm_err(kd, 0, "pa2off not yet implemented!");
115	return 0;
116}
117
118/*
119 * Machine-dependent initialization for ALL open kvm descriptors,
120 * not just those for a kernel crash dump.  Some architectures
121 * have to deal with these NOT being constants!  (i.e. m68k)
122 */
123int
124_kvm_mdopen(kd)
125	kvm_t	*kd;
126{
127
128	kd->usrstack = USRSTACK;
129	kd->min_uva = VM_MIN_ADDRESS;
130	kd->max_uva = VM_MAXUSER_ADDRESS;
131
132	return (0);
133}
134