1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/* $NetBSD: kvm_vax.c,v 1.2 1995/04/25 15:41:11 ragge Exp $ */
/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software developed by the Computer Systems
* Engineering group at Lawrence Berkeley Laboratory under DARPA contract
* BG 91-66 and contributed to Berkeley.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* VAX machine dependent routines for kvm. Hopefully, the forthcoming
* vm code will one day obsolete this module. Furthermore, I hope it
* gets here soon, because this basically is an error stub! (sorry)
* This code may not work anyway.
*/
#include <sys/param.h>
#include <sys/user.h>
#include <sys/proc.h>
#include <sys/stat.h>
#include <unistd.h>
#include <nlist.h>
#include <kvm.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <limits.h>
#include <db.h>
#include "kvm_private.h"
struct vmstate {
u_long end;
};
void
_kvm_freevtop(kd)
kvm_t *kd;
{
if (kd->vmst != 0)
free(kd->vmst);
}
int
_kvm_initvtop(kd)
kvm_t *kd;
{
register int i;
register int off;
register struct vmstate *vm;
struct stat st;
struct nlist nlist[2];
vm = (struct vmstate *)_kvm_malloc(kd, sizeof(*vm));
if (vm == 0)
return (-1);
kd->vmst = vm;
if (fstat(kd->pmfd, &st) < 0)
return (-1);
/* Get end of kernel address */
nlist[0].n_name = "_end";
nlist[1].n_name = 0;
if (kvm_nlist(kd, nlist) != 0) {
_kvm_err(kd, kd->program, "pmap_stod: no such symbol");
return (-1);
}
vm->end = (u_long)nlist[0].n_value;
return (0);
}
#define VA_OFF(va) (va & (NBPG - 1))
/*
* Translate a kernel virtual address to a physical address using the
* mapping information in kd->vm. Returns the result in pa, and returns
* the number of bytes that are contiguously available from this
* physical address. This routine is used only for crashdumps.
*/
int
_kvm_kvatop(kd, va, pa)
kvm_t *kd;
u_long va;
u_long *pa;
{
register int end;
if (va < KERNBASE) {
_kvm_err(kd, 0, "invalid address (%x<%x)", va, KERNBASE);
return (0);
}
end = kd->vmst->end;
if (va >= end) {
_kvm_err(kd, 0, "invalid address (%x>=%x)", va, end);
return (0);
}
*pa = (va - KERNBASE);
return (end - va);
}
|
