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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/* $OpenBSD: mopa.out.c,v 1.16 2017/01/21 08:33:51 krw Exp $ */
/*
* mopa.out - Convert a Unix format kernel into something that
* can be transferred via MOP.
*
* This code was written while referring to the NetBSD/vax boot
* loader. Therefore anything that can be booted by the Vax
* should be convertable with this program.
*
* If necessary, the a.out header is stripped, and the program
* segments are padded out. The BSS segment is zero filled.
* A header is prepended that looks like an IHD header. In
* particular the Unix machine ID is placed where mopd expects
* the image type to be (offset is IHD_W_ALIAS). If the machine
* ID could be mistaken for a DEC image type, then the conversion
* is aborted. The original a.out header is copied into the front
* of the header so that once we have detected the Unix machine
* ID we can haul the load address and the xfer address out.
*/
/*
* Copyright (c) 1996 Lloyd Parkes. 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 Lloyd Parkes.
* 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 "os.h"
#include "common/common.h"
#include "common/mopdef.h"
#include "common/file.h"
#if defined(__OpenBSD__)
#include <sys/exec.h>
#endif
#if defined(__FreeBSD__)
#include <sys/imgact_aout.h>
#endif
#if defined(__bsdi__)
#include <a.out.h>
#define NOAOUT
#endif
#if !defined(MID_VAX)
#define MID_VAX 140
#endif
#ifndef NOELF
#if defined(__NetBSD__) || defined(__OpenBSD__)
#include <sys/exec_elf.h>
#else
#define NOELF
#endif
#endif
#ifndef NOELF
#if !defined(_LP64)
#define NOELF64
#endif
#endif
u_char header[512]; /* The MOP header we generate is 1 block. */
#if !defined(NOAOUT)
struct exec ex, ex_swap;
#endif
int
main (int argc, char **argv)
{
FILE *out; /* A FILE because that is easier. */
int i, j;
struct dllist dl;
short image_type;
#ifdef NOAOUT
fprintf(stderr, "%s: has no function in OS/BSD\n", argv[0]);
return(1);
#endif
if (argc != 3) {
fprintf (stderr, "usage: %s infile outfile\n", argv[0]);
return (1);
}
dl.ldfd = open (argv[1], O_RDONLY);
if (dl.ldfd == -1)
err(2, "open `%s'", argv[1]);
if (GetFileInfo(&dl, 0) == -1)
errx(3, "`%s' is an unknown file type", argv[1]);
switch (dl.image_type) {
case IMAGE_TYPE_MOP:
errx(3, "`%s' is already a MOP image", argv[1]);
break;
#ifndef NOELF
case IMAGE_TYPE_ELF32:
if (dl.e_machine != EM_VAX)
printf("WARNING: `%s' is not a VAX image "
"(machine=%d)\n", argv[1], dl.e_machine);
for (i = 0, j = 0; j < dl.e_nsec; j++)
i += dl.e_sections[j].s_fsize + dl.e_sections[j].s_pad;
image_type = IHD_C_NATIVE;
break;
#endif
#if !defined(NOELF) && !defined(NOELF64)
case IMAGE_TYPE_ELF64:
if (dl.e_machine != EM_ALPHA && dl.e_machine != EM_ALPHA_EXP)
printf("WARNING: `%s' is not an ALPHA image "
"(machine=%d)\n", argv[1], dl.e_machine);
for (i = 0, j = 0; j < dl.e_nsec; j++)
i += dl.e_sections[j].s_fsize + dl.e_sections[j].s_pad;
image_type = IHD_C_ALPHA;
break;
#endif
#ifndef NOAOUT
case IMAGE_TYPE_AOUT:
if (dl.a_mid != MID_VAX)
printf("WARNING: `%s' is not a VAX image (mid=%d)\n",
argv[1], dl.a_mid);
i = dl.a_text + dl.a_text_fill + dl.a_data + dl.a_data_fill +
dl.a_bss + dl.a_bss_fill;
image_type = IHD_C_NATIVE;
break;
#endif
default:
errx(3, "Image type `%s' not supported",
FileTypeName(dl.image_type));
}
dl.nloadaddr = dl.loadaddr;
dl.lseek = lseek(dl.ldfd,0L,SEEK_CUR);
dl.a_lseek = 0;
dl.count = 0;
dl.dl_bsz = 512;
switch (image_type) {
default:
case IHD_C_NATIVE:
/* Offset to ISD section. */
mopFilePutLX(header, IHD_W_SIZE, 0xd4, 2);
/* Offset to 1st section.*/
mopFilePutLX(header, IHD_W_ACTIVOFF, 0x30, 2);
/* It's a VAX image.*/
mopFilePutLX(header, IHD_W_ALIAS, IHD_C_NATIVE, 2);
/* Only one header block. */
mopFilePutLX(header, IHD_B_HDRBLKCNT, 1, 1);
/* Xfer Addr */
mopFilePutLX(header, 0x30 + IHA_L_TFRADR1, dl.xferaddr, 4);
/* load Addr */
mopFilePutLX(header, 0xd4 + ISD_V_VPN, dl.loadaddr / 512, 2);
/* Imagesize in blks.*/
i = (i + 1) / 512;
mopFilePutLX(header, 0xd4 + ISD_W_PAGCNT, i, 2);
break;
case IHD_C_ALPHA:
/* Offset to ISD section. */
mopFilePutLX(header, EIHD_L_ISDOFF, 0xd4, 4);
/* It's an alpha image.*/
mopFilePutLX(header, IHD_W_ALIAS, IHD_C_ALPHA, 2);
/* Only one header block. */
mopFilePutLX(header, EIHD_L_HDRBLKCNT, 1, 4);
/* Imagesize in bytes.*/
mopFilePutLX(header, 0xd4 + EISD_L_SECSIZE, i, 4);
break;
}
out = fopen (argv[2], "w");
if (!out)
err(2, "writing `%s'", argv[2]);
/* Now we do the actual work. Write MOP-image header */
fwrite (header, sizeof (header), 1, out);
switch (dl.image_type) {
case IMAGE_TYPE_MOP:
abort();
case IMAGE_TYPE_ELF32:
#ifdef NOELF
abort();
#else
fprintf(stderr, "copying ");
for (j = 0; j < dl.e_nsec; j++)
fprintf(stderr, "%s%u+%u", j == 0 ? "" : "+",
dl.e_sections[j].s_fsize,
dl.e_sections[j].s_pad);
fprintf(stderr, "->0x%x\n", dl.xferaddr);
#endif
break;
case IMAGE_TYPE_AOUT:
#ifdef NOAOUT
abort();
#else
fprintf(stderr, "copying %u+%u+%u->0x%x\n", dl.a_text,
dl.a_data, dl.a_bss, dl.xferaddr);
#endif
break;
default:
break;
}
while ((i = mopFileRead(&dl,header)) > 0) {
(void)fwrite(header, i, 1, out);
}
fclose (out);
exit(0);
}
|
