386BSD 0.1 development
[unix-history] / usr / src / include / a.out.h
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1/*-
2 * Copyright (c) 1991 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)a.out.h 5.6 (Berkeley) 4/30/91
34 */
35
36#ifndef _AOUT_H_
37#define _AOUT_H_
38
39#include <sys/exec.h>
40
41#if defined(hp300) || defined(i386)
42#define __LDPGSZ 4096
43#endif
44#if defined(tahoe) || defined(vax)
45#define __LDPGSZ 1024
46#endif
47
48/* Valid magic number check. */
49#define N_BADMAG(ex) \
50 ((ex).a_magic != NMAGIC && (ex).a_magic != OMAGIC && \
51 (ex).a_magic != ZMAGIC)
52
53/* Address of the bottom of the text segment. */
54#define N_TXTADDR(X) 0
55
56/* Address of the bottom of the data segment. */
57#define N_DATADDR(ex) \
58 (N_TXTADDR(ex) + ((ex).a_magic == OMAGIC ? (ex).a_text \
59 : __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))
60
61/* Text segment offset. */
62#define N_TXTOFF(ex) \
63 ((ex).a_magic == ZMAGIC ? __LDPGSZ : sizeof(struct exec))
64
65/* Data segment offset. */
66#define N_DATOFF(ex) \
67 (N_TXTOFF(ex) + ((ex).a_magic != ZMAGIC ? (ex).a_text \
68 : __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))
69
70/* Symbol table offset. */
71#define N_SYMOFF(ex) \
72 (N_TXTOFF(ex) + (ex).a_text + (ex).a_data + (ex).a_trsize + \
73 (ex).a_drsize)
74
75/* String table offset. */
76#define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms)
77
78/* Relocation format. */
79struct relocation_info {
80 int r_address; /* offset in text or data segment */
81 unsigned int r_symbolnum : 24, /* ordinal number of add symbol */
82 r_pcrel : 1, /* 1 if value should be pc-relative */
83 r_length : 2, /* log base 2 of value's width */
84 r_extern : 1, /* 1 if need to add symbol to value */
85 : 4; /* reserved */
86};
87
88#define _AOUT_INCLUDE_
89#include <nlist.h>
90
91#endif /* !_AOUT_H_ */