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Source at commit 1445 created 12 years 11 months ago. By jrcs, Revert "Print the multiboot_magic" Only used for debugging purpose | |
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1 | /*␊ |
2 | * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.␊ |
3 | *␊ |
4 | * @APPLE_LICENSE_HEADER_START@␊ |
5 | * ␊ |
6 | * This file contains Original Code and/or Modifications of Original Code␊ |
7 | * as defined in and that are subject to the Apple Public Source License␊ |
8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
9 | * compliance with the License. Please obtain a copy of the License at␊ |
10 | * http://www.opensource.apple.com/apsl/ and read it before using this␊ |
11 | * file.␊ |
12 | * ␊ |
13 | * The Original Code and all software distributed under the License are␊ |
14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
18 | * Please see the License for the specific language governing rights and␊ |
19 | * limitations under the License.␊ |
20 | * ␊ |
21 | * @APPLE_LICENSE_HEADER_END@␊ |
22 | */␊ |
23 | ␊ |
24 | #ifndef _MACHO_LDSYMS_H_␊ |
25 | #define _MACHO_LDSYMS_H_␊ |
26 | ␊ |
27 | #include <mach-o/loader.h>␊ |
28 | ␊ |
29 | /*␊ |
30 | * This file describes the link editor defined symbols. The semantics of a␊ |
31 | * link editor symbol is that it is defined by the link editor only if it is␊ |
32 | * referenced and it is an error for the user to define them (see the man page␊ |
33 | * ld(1)). The standard UNIX link editor symbols: __end, __etext and __edata␊ |
34 | * are not not supported by the Apple Mach-O link editor. These symbols are␊ |
35 | * really not meaningful in a Mach-O object file and the link editor symbols␊ |
36 | * that are supported (described here) replace them. In the case of the␊ |
37 | * standard UNIX link editor symbols the program can use the symbol␊ |
38 | * __mh_execute_header and walk the load commands of it's program to determine␊ |
39 | * the ending (or beginning) of any section or segment in the program. Note␊ |
40 | * that the compiler prepends an underbar to all external symbol names coded␊ |
41 | * in a high level language. Thus in 'C' names are coded without an underbar␊ |
42 | * and symbol names in the symbol table have an underbar. There are two cpp␊ |
43 | * macros for each link editor defined name in this file. The macro with a␊ |
44 | * leading underbar is the symbol name and the one without is the name as␊ |
45 | * coded in 'C'.␊ |
46 | */␊ |
47 | ␊ |
48 | /*␊ |
49 | * The value of the link editor defined symbol _MH_EXECUTE_SYM is the address␊ |
50 | * of the mach header in a Mach-O executable file type. It does not appear in␊ |
51 | * any file type other than a MH_EXECUTE file type. The type of the symbol is␊ |
52 | * absolute as the header is not part of any section.␊ |
53 | */␊ |
54 | #define _MH_EXECUTE_SYM␉"__mh_execute_header"␊ |
55 | #define MH_EXECUTE_SYM␉"_mh_execute_header"␊ |
56 | extern const struct␊ |
57 | #ifdef __LP64__␊ |
58 | mach_header_64␊ |
59 | #else␊ |
60 | mach_header␊ |
61 | #endif␊ |
62 | _mh_execute_header;␊ |
63 | ␊ |
64 | /*␊ |
65 | * The value of the link editor defined symbol _MH_BUNDLE_SYM is the address␊ |
66 | * of the mach header in a Mach-O bundle file type. It does not appear in␊ |
67 | * any file type other than a MH_BUNDLE file type. The type of the symbol is␊ |
68 | * an N_SECT symbol even thought the header is not part of any section. This␊ |
69 | * symbol is private to the code in the bundle it is a part of.␊ |
70 | */␊ |
71 | #define _MH_BUNDLE_SYM␉"__mh_bundle_header"␊ |
72 | #define MH_BUNDLE_SYM␉"_mh_bundle_header"␊ |
73 | extern const struct␊ |
74 | #ifdef __LP64__␊ |
75 | mach_header_64␊ |
76 | #else␊ |
77 | mach_header␊ |
78 | #endif␊ |
79 | _mh_bundle_header;␊ |
80 | ␊ |
81 | /*␊ |
82 | * The value of the link editor defined symbol _MH_DYLIB_SYM is the address␊ |
83 | * of the mach header in a Mach-O dylib file type. It does not appear in␊ |
84 | * any file type other than a MH_DYLIB file type. The type of the symbol is␊ |
85 | * an N_SECT symbol even thought the header is not part of any section. This␊ |
86 | * symbol is private to the code in the library it is a part of.␊ |
87 | */␊ |
88 | #define _MH_DYLIB_SYM␉"__mh_dylib_header"␊ |
89 | #define MH_DYLIB_SYM␉"_mh_dylib_header"␊ |
90 | extern const struct␊ |
91 | #ifdef __LP64__␊ |
92 | mach_header_64␊ |
93 | #else␊ |
94 | mach_header␊ |
95 | #endif␊ |
96 | _mh_dylib_header;␊ |
97 | ␊ |
98 | /*␊ |
99 | * The value of the link editor defined symbol _MH_DYLINKER_SYM is the address␊ |
100 | * of the mach header in a Mach-O dylinker file type. It does not appear in␊ |
101 | * any file type other than a MH_DYLINKER file type. The type of the symbol is␊ |
102 | * an N_SECT symbol even thought the header is not part of any section. This␊ |
103 | * symbol is private to the code in the dynamic linker it is a part of.␊ |
104 | */␊ |
105 | #define _MH_DYLINKER_SYM␉"__mh_dylinker_header"␊ |
106 | #define MH_DYLINKER_SYM␉␉"_mh_dylinker_header"␊ |
107 | extern const struct␊ |
108 | #ifdef __LP64__␊ |
109 | mach_header_64␊ |
110 | #else␊ |
111 | mach_header␊ |
112 | #endif␊ |
113 | _mh_dylinker_header;␊ |
114 | ␊ |
115 | /*␊ |
116 | * For the MH_PRELOAD file type the headers are not loaded as part of any␊ |
117 | * segment so the link editor defines symbols defined for the beginning␊ |
118 | * and ending of each segment and each section in each segment. The names for␊ |
119 | * the symbols for a segment's beginning and end will have the form:␊ |
120 | * __SEGNAME__begin and __SEGNAME__end where __SEGNAME is the name of the␊ |
121 | * segment. The names for the symbols for a section's beginning and end will␊ |
122 | * have the form: __SEGNAME__sectname__begin and __SEGNAME__sectname__end␊ |
123 | * where __sectname is the name of the section and __SEGNAME is the segment it␊ |
124 | * is in.␊ |
125 | * ␊ |
126 | * The above symbols' types are those of the section they are referring to.␊ |
127 | * This is true even for symbols who's values are end's of a section and␊ |
128 | * that value is next address after that section and not really in that␊ |
129 | * section. This results in these symbols having types referring to sections␊ |
130 | * who's values are not in that section.␊ |
131 | */␊ |
132 | ␊ |
133 | #endif /* _MACHO_LDSYMS_H_ */␊ |
134 |