exec.h (3971d2cf5ef75ef2c378fa9da472d54285cbb959) exec.h (6cda32c0719e5810f8b3d4cea0790002d44f80a4)
1/*-
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. 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.
1/*-
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. 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.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)exec.h 8.1 (Berkeley) 6/11/93
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 * @(#)exec.h 8.1 (Berkeley) 6/11/93
30 * $FreeBSD$
31 */
32
34 */
35
33#ifndef _MACHINE_EXEC_H_
34#define _MACHINE_EXEC_H_
35
36/* Size of a page in an object file. */
36#define __LDPGSZ 4096
37
37#define __LDPGSZ 4096
38
38#endif /* !_MACHINE_EXEC_H_ */
39/* Valid magic number check. */
40#define N_BADMAG(ex) \
41 ((ex).a_magic != NMAGIC && (ex).a_magic != OMAGIC && \
42 (ex).a_magic != ZMAGIC)
43
44/* Address of the bottom of the text segment. */
45#define N_TXTADDR(X) 0
46
47/* Address of the bottom of the data segment. */
48#define N_DATADDR(ex) \
49 (N_TXTADDR(ex) + ((ex).a_magic == OMAGIC ? (ex).a_text \
50 : __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))
51
52/* Text segment offset. */
53#define N_TXTOFF(ex) \
54 ((ex).a_magic == ZMAGIC ? __LDPGSZ : sizeof(struct exec))
55
56/* Data segment offset. */
57#define N_DATOFF(ex) \
58 (N_TXTOFF(ex) + ((ex).a_magic != ZMAGIC ? (ex).a_text : \
59 __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))
60
61/* Symbol table offset. */
62#define N_SYMOFF(ex) \
63 (N_TXTOFF(ex) + (ex).a_text + (ex).a_data + (ex).a_trsize + \
64 (ex).a_drsize)
65
66/* String table offset. */
67#define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms)
68
69/* Description of the object file header (a.out format). */
70struct exec {
71#define OMAGIC 0407 /* old impure format */
72#define NMAGIC 0410 /* read-only text */
73#define ZMAGIC 0413 /* demand load format */
74 long a_magic; /* magic number */
75
76 u_long a_text; /* text segment size */
77 u_long a_data; /* initialized data size */
78 u_long a_bss; /* uninitialized data size */
79 u_long a_syms; /* symbol table size */
80 u_long a_entry; /* entry point */
81 u_long a_trsize; /* text relocation size */
82 u_long a_drsize; /* data relocation size */
83};