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
|
/* BFD back-end for NetBSD/386 a.out-ish binaries.
Copyright (C) 1990, 1991, 1992 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define BYTES_IN_WORD 4
#define ARCH 32
/* ZMAGIC files never have the header in the text. */
#define N_HEADER_IN_TEXT(x) 0
/* ZMAGIC files start at address 0. This does not apply to QMAGIC. */
#define TEXT_START_ADDR 0
#define PAGE_SIZE 4096
#define SEGMENT_SIZE PAGE_SIZE
#define DEFAULT_ARCH bfd_arch_i386
#define MACHTYPE_OK(mtype) ((mtype) == M_386 || (mtype) == M_I386 || (mtype) == M_UNKNOWN)
#define MY(OP) CAT(netbsd386_,OP)
/* This needs to start with a.out so GDB knows it is an a.out variant. */
#define TARGETNAME "a.out-netbsd-386"
#define N_MAGIC(ex) \
( (((ex).a_info)&0xffff0000) ? (ntohl(((ex).a_info))&0xffff) : ((ex).a_info))
#define N_MACHTYPE(ex) \
( (((ex).a_info)&0xffff0000) ? ((ntohl(((ex).a_info))>>16)&0x03ff) : 0 )
# define N_FLAGS(ex) \
( (((ex).a_info)&0xffff0000) ? ((ntohl(((ex).a_info))>>26)&0x3f) : 0 )
#define N_SET_INFO(ex, mag,mid,flag) \
( (ex).a_info = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
(((mag)&0xffff)) ) )
#define N_SET_MAGIC(exec,magic) \
((exec).a_info = (((exec).a_info & ~0xffff) | ((magic) & 0xffff)))
#define N_SET_MACHTYPE(exec,machtype) \
((exec).a_info = \
(((exec).a_info & ~(0x3ff<<16)) | (((machtype)&0xff) << 16)))
#define N_SET_FLAGS(exec, flags) \
((exec).a_info = ((exec).a_info & 0xffff) | (flags & 0xffff))
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libaout.h"
#define N_GETMAGIC2(ex) \
( (((ex).a_info)&0xffff0000) ? (ntohl(((ex).a_info))&0xffff) : \
(((ex).a_info) | 0x10000) )
#define N_TXTADDR(ex) (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : 4096)
#define N_TXTOFF(ex) \
( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? 4096 : EXEC_BYTES_SIZE ))
#define N_ALIGN(ex,x) \
(N_MAGIC(ex) == ZMAGIC || N_MAGIC(ex) == QMAGIC ? \
((x) + 4096 - 1) & ~(4096 - 1) : (x))
#define N_DATADDR(ex) \
N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text)
/* Data segment offset. */
#define N_DATOFF(ex) \
N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
/* #define N_BADMAG(x) n_badmag(N_MAGIC(x)) */
#define NO_SWAP_MAGIC /* magic number already in correct endian format */
#include "aout-target.h"
#if 0
int
n_badmag(x)
unsigned long x; {
union {
unsigned long l;
unsigned char c[sizeof(unsigned long)];
} l;
unsigned char temp;
printf ("x = %o, OMAGIC = %o, NMAGIC = %o, ZMAGIC = %o, QMAGIC = %o\n",
x, OMAGIC, NMAGIC, ZMAGIC, QMAGIC);
l.l = x;
temp = l.c[0];
l.c[0] = l.c[3];
l.c[3] = temp;
temp = l.c[2];
l.c[2] = l.c[1];
l.c[1] = temp;
printf ("\tbyte-swapped(x) = %o\n", l.l);
return (x != OMAGIC
&& x != NMAGIC
&& x != ZMAGIC
&& x != QMAGIC);
}
#endif
|
