]>
Commit | Line | Data |
---|---|---|
52302d4d LG |
1 | /** @file |
2 | Ported ELF include files from FreeBSD | |
3 | ||
40d841f6 LG |
4 | Copyright (c) 2009 - 2010, Apple Inc. All rights reserved.<BR> |
5 | This program and the accompanying materials | |
52302d4d LG |
6 | are licensed and made available under the terms and conditions of the BSD License |
7 | which accompanies this distribution. The full text of the license may be found at | |
8 | http://opensource.org/licenses/bsd-license.php | |
9 | ||
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
12 | ||
13 | ||
14 | **/ | |
30fdf114 LG |
15 | /*- |
16 | * Copyright (c) 1996-1998 John D. Polstra. | |
17 | * All rights reserved. | |
18 | * | |
19 | * Redistribution and use in source and binary forms, with or without | |
20 | * modification, are permitted provided that the following conditions | |
21 | * are met: | |
22 | * 1. Redistributions of source code must retain the above copyright | |
23 | * notice, this list of conditions and the following disclaimer. | |
24 | * 2. Redistributions in binary form must reproduce the above copyright | |
25 | * notice, this list of conditions and the following disclaimer in the | |
26 | * documentation and/or other materials provided with the distribution. | |
27 | * | |
28 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
29 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
30 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
31 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
32 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
33 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
34 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
35 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
36 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
37 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
38 | * SUCH DAMAGE. | |
39 | * | |
40 | * $FreeBSD: src/sys/sys/elf32.h,v 1.8.14.2 2007/12/03 21:30:36 marius Exp $ | |
41 | */ | |
42 | ||
43 | #ifndef _SYS_ELF32_H_ | |
44 | #define _SYS_ELF32_H_ 1 | |
45 | ||
46 | ||
47 | /* | |
48 | * ELF definitions common to all 32-bit architectures. | |
49 | */ | |
50 | ||
51 | typedef UINT32 Elf32_Addr; | |
52 | typedef UINT16 Elf32_Half; | |
53 | typedef UINT32 Elf32_Off; | |
54 | typedef INT32 Elf32_Sword; | |
55 | typedef UINT32 Elf32_Word; | |
56 | typedef UINT64 Elf32_Lword; | |
57 | ||
58 | typedef Elf32_Word Elf32_Hashelt; | |
59 | ||
60 | /* Non-standard class-dependent datatype used for abstraction. */ | |
61 | typedef Elf32_Word Elf32_Size; | |
62 | typedef Elf32_Sword Elf32_Ssize; | |
63 | ||
64 | /* | |
65 | * ELF header. | |
66 | */ | |
67 | ||
68 | typedef struct { | |
69 | unsigned char e_ident[EI_NIDENT]; /* File identification. */ | |
70 | Elf32_Half e_type; /* File type. */ | |
71 | Elf32_Half e_machine; /* Machine architecture. */ | |
72 | Elf32_Word e_version; /* ELF format version. */ | |
73 | Elf32_Addr e_entry; /* Entry point. */ | |
74 | Elf32_Off e_phoff; /* Program header file offset. */ | |
75 | Elf32_Off e_shoff; /* Section header file offset. */ | |
76 | Elf32_Word e_flags; /* Architecture-specific flags. */ | |
77 | Elf32_Half e_ehsize; /* Size of ELF header in bytes. */ | |
78 | Elf32_Half e_phentsize; /* Size of program header entry. */ | |
79 | Elf32_Half e_phnum; /* Number of program header entries. */ | |
80 | Elf32_Half e_shentsize; /* Size of section header entry. */ | |
81 | Elf32_Half e_shnum; /* Number of section header entries. */ | |
82 | Elf32_Half e_shstrndx; /* Section name strings section. */ | |
83 | } Elf32_Ehdr; | |
84 | ||
85 | /* | |
86 | * Section header. | |
87 | */ | |
88 | ||
89 | typedef struct { | |
90 | Elf32_Word sh_name; /* Section name (index into the | |
91 | section header string table). */ | |
92 | Elf32_Word sh_type; /* Section type. */ | |
93 | Elf32_Word sh_flags; /* Section flags. */ | |
94 | Elf32_Addr sh_addr; /* Address in memory image. */ | |
95 | Elf32_Off sh_offset; /* Offset in file. */ | |
96 | Elf32_Word sh_size; /* Size in bytes. */ | |
97 | Elf32_Word sh_link; /* Index of a related section. */ | |
98 | Elf32_Word sh_info; /* Depends on section type. */ | |
99 | Elf32_Word sh_addralign; /* Alignment in bytes. */ | |
100 | Elf32_Word sh_entsize; /* Size of each entry in section. */ | |
101 | } Elf32_Shdr; | |
102 | ||
103 | /* | |
104 | * Program header. | |
105 | */ | |
106 | ||
107 | typedef struct { | |
108 | Elf32_Word p_type; /* Entry type. */ | |
109 | Elf32_Off p_offset; /* File offset of contents. */ | |
110 | Elf32_Addr p_vaddr; /* Virtual address in memory image. */ | |
111 | Elf32_Addr p_paddr; /* Physical address (not used). */ | |
112 | Elf32_Word p_filesz; /* Size of contents in file. */ | |
113 | Elf32_Word p_memsz; /* Size of contents in memory. */ | |
114 | Elf32_Word p_flags; /* Access permission flags. */ | |
115 | Elf32_Word p_align; /* Alignment in memory and file. */ | |
116 | } Elf32_Phdr; | |
117 | ||
118 | /* | |
119 | * Dynamic structure. The ".dynamic" section contains an array of them. | |
120 | */ | |
121 | ||
122 | typedef struct { | |
123 | Elf32_Sword d_tag; /* Entry type. */ | |
124 | union { | |
125 | Elf32_Word d_val; /* Integer value. */ | |
126 | Elf32_Addr d_ptr; /* Address value. */ | |
127 | } d_un; | |
128 | } Elf32_Dyn; | |
129 | ||
130 | /* | |
131 | * Relocation entries. | |
132 | */ | |
133 | ||
134 | /* Relocations that don't need an addend field. */ | |
135 | typedef struct { | |
136 | Elf32_Addr r_offset; /* Location to be relocated. */ | |
137 | Elf32_Word r_info; /* Relocation type and symbol index. */ | |
138 | } Elf32_Rel; | |
139 | ||
140 | /* Relocations that need an addend field. */ | |
141 | typedef struct { | |
142 | Elf32_Addr r_offset; /* Location to be relocated. */ | |
143 | Elf32_Word r_info; /* Relocation type and symbol index. */ | |
144 | Elf32_Sword r_addend; /* Addend. */ | |
145 | } Elf32_Rela; | |
146 | ||
147 | /* Macros for accessing the fields of r_info. */ | |
148 | #define ELF32_R_SYM(info) ((info) >> 8) | |
149 | #define ELF32_R_TYPE(info) ((unsigned char)(info)) | |
150 | ||
151 | /* Macro for constructing r_info from field values. */ | |
152 | #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) | |
153 | ||
154 | /* | |
155 | * Note entry header | |
156 | */ | |
157 | typedef Elf_Note Elf32_Nhdr; | |
158 | ||
159 | /* | |
160 | * Move entry | |
161 | */ | |
162 | typedef struct { | |
163 | Elf32_Lword m_value; /* symbol value */ | |
164 | Elf32_Word m_info; /* size + index */ | |
165 | Elf32_Word m_poffset; /* symbol offset */ | |
166 | Elf32_Half m_repeat; /* repeat count */ | |
167 | Elf32_Half m_stride; /* stride info */ | |
168 | } Elf32_Move; | |
169 | ||
170 | /* | |
171 | * The macros compose and decompose values for Move.r_info | |
172 | * | |
173 | * sym = ELF32_M_SYM(M.m_info) | |
174 | * size = ELF32_M_SIZE(M.m_info) | |
175 | * M.m_info = ELF32_M_INFO(sym, size) | |
176 | */ | |
177 | #define ELF32_M_SYM(info) ((info)>>8) | |
178 | #define ELF32_M_SIZE(info) ((unsigned char)(info)) | |
179 | #define ELF32_M_INFO(sym, size) (((sym)<<8)+(unsigned char)(size)) | |
180 | ||
181 | /* | |
182 | * Hardware/Software capabilities entry | |
183 | */ | |
184 | typedef struct { | |
185 | Elf32_Word c_tag; /* how to interpret value */ | |
186 | union { | |
187 | Elf32_Word c_val; | |
188 | Elf32_Addr c_ptr; | |
189 | } c_un; | |
190 | } Elf32_Cap; | |
191 | ||
192 | /* | |
193 | * Symbol table entries. | |
194 | */ | |
195 | ||
196 | typedef struct { | |
197 | Elf32_Word st_name; /* String table index of name. */ | |
198 | Elf32_Addr st_value; /* Symbol value. */ | |
199 | Elf32_Word st_size; /* Size of associated object. */ | |
200 | unsigned char st_info; /* Type and binding information. */ | |
201 | unsigned char st_other; /* Reserved (not used). */ | |
202 | Elf32_Half st_shndx; /* Section index of symbol. */ | |
203 | } Elf32_Sym; | |
204 | ||
205 | /* Macros for accessing the fields of st_info. */ | |
206 | #define ELF32_ST_BIND(info) ((info) >> 4) | |
207 | #define ELF32_ST_TYPE(info) ((info) & 0xf) | |
208 | ||
209 | /* Macro for constructing st_info from field values. */ | |
210 | #define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) | |
211 | ||
212 | /* Macro for accessing the fields of st_other. */ | |
213 | #define ELF32_ST_VISIBILITY(oth) ((oth) & 0x3) | |
214 | ||
215 | /* Structures used by Sun & GNU symbol versioning. */ | |
216 | typedef struct | |
217 | { | |
218 | Elf32_Half vd_version; | |
219 | Elf32_Half vd_flags; | |
220 | Elf32_Half vd_ndx; | |
221 | Elf32_Half vd_cnt; | |
222 | Elf32_Word vd_hash; | |
223 | Elf32_Word vd_aux; | |
224 | Elf32_Word vd_next; | |
225 | } Elf32_Verdef; | |
226 | ||
227 | typedef struct | |
228 | { | |
229 | Elf32_Word vda_name; | |
230 | Elf32_Word vda_next; | |
231 | } Elf32_Verdaux; | |
232 | ||
233 | typedef struct | |
234 | { | |
235 | Elf32_Half vn_version; | |
236 | Elf32_Half vn_cnt; | |
237 | Elf32_Word vn_file; | |
238 | Elf32_Word vn_aux; | |
239 | Elf32_Word vn_next; | |
240 | } Elf32_Verneed; | |
241 | ||
242 | typedef struct | |
243 | { | |
244 | Elf32_Word vna_hash; | |
245 | Elf32_Half vna_flags; | |
246 | Elf32_Half vna_other; | |
247 | Elf32_Word vna_name; | |
248 | Elf32_Word vna_next; | |
249 | } Elf32_Vernaux; | |
250 | ||
251 | typedef Elf32_Half Elf32_Versym; | |
252 | ||
253 | typedef struct { | |
254 | Elf32_Half si_boundto; /* direct bindings - symbol bound to */ | |
255 | Elf32_Half si_flags; /* per symbol flags */ | |
256 | } Elf32_Syminfo; | |
257 | ||
258 | #endif /* !_SYS_ELF32_H_ */ |