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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
/* $OpenBSD: exec.c,v 1.3 2002/02/16 21:28:01 millert Exp $ */
/*
* Copyright (c) 1999 Mats O Jansson. All rights reserved.
*
* 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 Mats O Jansson.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <err.h>
#include <sys/types.h>
#include <stdio.h>
#ifndef LINT
static char rcsid[] = "$OpenBSD: exec.c,v 1.3 2002/02/16 21:28:01 millert Exp $";
#endif
#ifdef AOUT_SUPPORT
int aout_check(char *);
void aout_loadkernel(char *);
void aout_savekernel(char *);
caddr_t aout_adjust(caddr_t);
caddr_t aout_readjust(caddr_t);
#endif
#ifdef ECOFF_SUPPORT
int ecoff_check(char *);
void ecoff_loadkernel(char *);
void ecoff_savekernel(char *);
caddr_t ecoff_adjust(caddr_t);
caddr_t ecoff_readjust(caddr_t);
#endif
#ifdef ELF_SUPPORT
int elf_check(char *);
void elf_loadkernel(char *);
void elf_savekernel(char *);
caddr_t elf_adjust(caddr_t);
caddr_t elf_readjust(caddr_t);
#endif
#define DO_AOUT 0
#define DO_ECOFF 1
#define DO_ELF 2
int current_exec = -1;
caddr_t
adjust(x)
caddr_t x;
{
switch (current_exec) {
#ifdef AOUT_SUPPORT
case DO_AOUT:
return(aout_adjust(x));
break;
#endif
#ifdef ECOFF_SUPPORT
case DO_ECOFF:
return(ecoff_adjust(x));
break;
#endif
#ifdef ELF_SUPPORT
case DO_ELF:
return(elf_adjust(x));
break;
#endif
default:
errx(1, "no supported exec type");
}
}
caddr_t
readjust(x)
caddr_t x;
{
switch (current_exec) {
#ifdef AOUT_SUPPORT
case DO_AOUT:
return(aout_readjust(x));
break;
#endif
#ifdef ECOFF_SUPPORT
case DO_ECOFF:
return(ecoff_readjust(x));
break;
#endif
#ifdef ELF_SUPPORT
case DO_ELF:
return(elf_readjust(x));
break;
#endif
default:
errx(1, "no supported exec type");
}
}
void
loadkernel(file)
char *file;
{
current_exec = -1;
#ifdef AOUT_SUPPORT
if (aout_check(file)) {
current_exec = DO_AOUT;
}
#endif
#ifdef ECOFF_SUPPORT
if (ecoff_check(file)) {
current_exec = DO_ECOFF;
}
#endif
#ifdef ELF_SUPPORT
if (elf_check(file)) {
current_exec = DO_ELF;
}
#endif
switch (current_exec) {
#ifdef AOUT_SUPPORT
case DO_AOUT:
aout_loadkernel(file);
break;
#endif
#ifdef ECOFF_SUPPORT
case DO_ECOFF:
ecoff_loadkernel(file);
break;
#endif
#ifdef ELF_SUPPORT
case DO_ELF:
elf_loadkernel(file);
break;
#endif
default:
errx(1, "no supported exec type");
}
}
void
savekernel(outfile)
char *outfile;
{
switch (current_exec) {
#ifdef AOUT_SUPPORT
case DO_AOUT:
aout_savekernel(outfile);
break;
#endif
#ifdef ECOFF_SUPPORT
case DO_ECOFF:
ecoff_savekernel(outfile);
break;
#endif
#ifdef ELF_SUPPORT
case DO_ELF:
elf_savekernel(outfile);
break;
#endif
default:
errx(1, "no supported exec type");
}
}
|
