1 | /* |
2 | * Copyright (c) 2000-2007 Apple Inc. All rights reserved. |
3 | */ |
4 | /*- |
5 | * Copyright (c) 1992, 1993 |
6 | * The Regents of the University of California. All rights reserved. |
7 | * |
8 | * Redistribution and use in source and binary forms, with or without |
9 | * modification, are permitted provided that the following conditions |
10 | * are met: |
11 | * 1. Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
16 | * 3. All advertising materials mentioning features or use of this software |
17 | * must display the following acknowledgement: |
18 | * This product includes software developed by the University of |
19 | * California, Berkeley and its contributors. |
20 | * 4. Neither the name of the University nor the names of its contributors |
21 | * may be used to endorse or promote products derived from this software |
22 | * without specific prior written permission. |
23 | * |
24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
34 | * SUCH DAMAGE. |
35 | * |
36 | * @(#)exec.h 8.1 (Berkeley) 6/11/93 |
37 | */ |
38 | |
39 | #ifndef _BSD_ARM_EXEC_H_ |
40 | #define _BSD_ARM_EXEC_H_ |
41 | |
42 | |
43 | #ifdef BSD_KERNEL_PRIVATE |
44 | /* Size of a page in an object file. */ |
45 | #define __LDPGSZ 4096 |
46 | |
47 | /* Valid magic number check. */ |
48 | #define N_BADMAG(ex) \ |
49 | ((ex).a_magic != NMAGIC && (ex).a_magic != OMAGIC && \ |
50 | (ex).a_magic != ZMAGIC) |
51 | |
52 | /* Address of the bottom of the text segment. */ |
53 | #define N_TXTADDR(X) 0 |
54 | |
55 | /* Address of the bottom of the data segment. */ |
56 | #define N_DATADDR(ex) \ |
57 | (N_TXTADDR(ex) + ((ex).a_magic == OMAGIC ? (ex).a_text \ |
58 | : __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1)))) |
59 | |
60 | /* Text segment offset. */ |
61 | #define N_TXTOFF(ex) \ |
62 | ((ex).a_magic == ZMAGIC ? __LDPGSZ : sizeof(struct exec)) |
63 | |
64 | /* Data segment offset. */ |
65 | #define N_DATOFF(ex) \ |
66 | (N_TXTOFF(ex) + ((ex).a_magic != ZMAGIC ? (ex).a_text : \ |
67 | __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1)))) |
68 | |
69 | /* Symbol table offset. */ |
70 | #define N_SYMOFF(ex) \ |
71 | (N_TXTOFF(ex) + (ex).a_text + (ex).a_data + (ex).a_trsize + \ |
72 | (ex).a_drsize) |
73 | |
74 | /* String table offset. */ |
75 | #define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms) |
76 | |
77 | /* Description of the object file header (a.out format). */ |
78 | struct exec { |
79 | #define OMAGIC 0407 /* old impure format */ |
80 | #define NMAGIC 0410 /* read-only text */ |
81 | #define ZMAGIC 0413 /* demand load format */ |
82 | #define QMAGIC 0314 /* demand load format. Header in text. */ |
83 | unsigned int a_magic; /* magic number */ |
84 | |
85 | unsigned int a_text; /* text segment size */ |
86 | unsigned int a_data; /* initialized data size */ |
87 | unsigned int a_bss; /* uninitialized data size */ |
88 | unsigned int a_syms; /* symbol table size */ |
89 | unsigned int a_entry; /* entry point */ |
90 | unsigned int a_trsize; /* text relocation size */ |
91 | unsigned int a_drsize; /* data relocation size */ |
92 | }; |
93 | |
94 | #endif /* BSD_KERNEL_PRIVATE */ |
95 | |
96 | #endif /* _BSD_ARM_EXEC_H_ */ |
97 | |