kvm_sh3.c revision 1.10 
1/*	$NetBSD: kvm_sh3.c,v 1.10 2022/01/10 19:51:30 christos 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 1.10 2022/01/10 19:51:30 christos 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/proc.h>
51#include <sys/stat.h>
52#include <sys/kcore.h>
53#include <sys/types.h>
54
55#include <stdlib.h>
56#include <unistd.h>
57#include <nlist.h>
58#include <kvm.h>
59
60#include <uvm/uvm_extern.h>
61
62#include <limits.h>
63#include <db.h>
64
65#include "kvm_private.h"
66
67#include <machine/pte.h>
68#include <machine/vmparam.h>
69
70#ifndef btop
71#define	btop(x)		(((unsigned)(x)) >> PGSHIFT)	/* XXX */
72#define	ptob(x)		((caddr_t)((x) << PGSHIFT))	/* XXX */
73#endif
74
75void
76_kvm_freevtop(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(kvm_t *kd)
87{
88
89	return (0);
90}
91
92/*
93 * Translate a kernel virtual address to a physical address.
94 */
95int
96_kvm_kvatop(kvm_t *kd, vaddr_t va, paddr_t *pa)
97{
98	_kvm_err(kd, 0, "vatop not yet implemented!");
99	return 0;
100}
101
102/*
103 * Translate a physical address to a file-offset in the crash dump.
104 */
105off_t
106_kvm_pa2off(kvm_t *kd, paddr_t pa)
107{
108	_kvm_err(kd, 0, "pa2off not yet implemented!");
109	return 0;
110}
111
112/*
113 * Machine-dependent initialization for ALL open kvm descriptors,
114 * not just those for a kernel crash dump.  Some architectures
115 * have to deal with these NOT being constants!  (i.e. m68k)
116 */
117int
118_kvm_mdopen(kvm_t *kd)
119{
120
121	kd->min_uva = VM_MIN_ADDRESS;
122	kd->max_uva = VM_MAXUSER_ADDRESS;
123
124	return (0);
125}
126