1 | /* |
2 | * Copyright (c) 2000-2008 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_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. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | /* |
29 | * File: libkern/kernel_mach_header.h |
30 | * |
31 | * Definitions for accessing mach-o headers. |
32 | * |
33 | * NOTE: These functions work on Mach-O headers compatible with |
34 | * the currently running kernel, and cannot be used against mach |
35 | * headers other than that of the currently running kernel. |
36 | * |
37 | */ |
38 | |
39 | #ifndef _KERNEL_MACH_HEADER_ |
40 | #define |
41 | |
42 | #ifdef __cplusplus |
43 | extern "C" { |
44 | #endif |
45 | |
46 | #include <mach/mach_types.h> |
47 | #include <mach-o/loader.h> |
48 | #include <mach-o/nlist.h> |
49 | #include <mach-o/reloc.h> |
50 | |
51 | #if !KERNEL |
52 | #error this header for kernel use only |
53 | #endif |
54 | |
55 | #if defined(__LP64__) |
56 | |
57 | typedef struct mach_header_64 ; |
58 | typedef struct segment_command_64 kernel_segment_command_t; |
59 | typedef struct section_64 kernel_section_t; |
60 | typedef struct nlist_64 kernel_nlist_t; |
61 | |
62 | #define MH_MAGIC_KERNEL MH_MAGIC_64 |
63 | #define LC_SEGMENT_KERNEL LC_SEGMENT_64 |
64 | |
65 | #else |
66 | |
67 | typedef struct mach_header kernel_mach_header_t; |
68 | typedef struct segment_command kernel_segment_command_t; |
69 | typedef struct section kernel_section_t; |
70 | typedef struct nlist kernel_nlist_t; |
71 | |
72 | #define MH_MAGIC_KERNEL MH_MAGIC |
73 | #define LC_SEGMENT_KERNEL LC_SEGMENT |
74 | #define SECT_CONSTRUCTOR "__constructor" |
75 | #define SECT_DESTRUCTOR "__destructor" |
76 | |
77 | #endif |
78 | |
79 | #define SECT_MODINITFUNC "__mod_init_func" |
80 | #define SECT_MODTERMFUNC "__mod_term_func" |
81 | |
82 | extern kernel_mach_header_t ; |
83 | |
84 | vm_offset_t getlastaddr(void); |
85 | |
86 | kernel_segment_command_t *firstseg(void); |
87 | kernel_segment_command_t *(kernel_mach_header_t *); |
88 | kernel_segment_command_t *( |
89 | kernel_mach_header_t *, |
90 | kernel_segment_command_t *seg); |
91 | kernel_segment_command_t *getsegbyname(const char *seg_name); |
92 | kernel_segment_command_t *( |
93 | kernel_mach_header_t *, |
94 | const char *seg_name); |
95 | void *(kernel_mach_header_t *, const char *, unsigned long *); |
96 | kernel_section_t *getsectbyname(const char *seg_name, const char *sect_name); |
97 | kernel_section_t *( |
98 | kernel_mach_header_t *, |
99 | const char *seg_name, |
100 | const char *sect_name); |
101 | uint32_t ( |
102 | kernel_mach_header_t *mhp, |
103 | const char *segname, |
104 | const char *sectname); |
105 | void *(kernel_mach_header_t *, const char *, const char *, unsigned long *); |
106 | kernel_section_t *firstsect(kernel_segment_command_t *sgp); |
107 | kernel_section_t *nextsect(kernel_segment_command_t *sgp, kernel_section_t *sp); |
108 | void *getcommandfromheader(kernel_mach_header_t *, uint32_t); |
109 | void *(kernel_mach_header_t *, unsigned long *); |
110 | |
111 | #ifdef __cplusplus |
112 | } |
113 | #endif |
114 | |
115 | #endif /* _KERNEL_MACH_HEADER_ */ |
116 | |