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52302d4d LG |
1 | /** @file |
2 | Ported ELF include files from FreeBSD | |
3 | ||
4 | Copyright (c) 2009 - 2010, Apple, Inc. All rights reserved. | |
5 | All rights reserved. This program and the accompanying materials | |
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 | **/ | |
30fdf114 LG |
14 | /*- |
15 | * Copyright (c) 1996-1998 John D. Polstra. | |
16 | * All rights reserved. | |
17 | * | |
18 | * Redistribution and use in source and binary forms, with or without | |
19 | * modification, are permitted provided that the following conditions | |
20 | * are met: | |
21 | * 1. Redistributions of source code must retain the above copyright | |
22 | * notice, this list of conditions and the following disclaimer. | |
23 | * 2. Redistributions in binary form must reproduce the above copyright | |
24 | * notice, this list of conditions and the following disclaimer in the | |
25 | * documentation and/or other materials provided with the distribution. | |
26 | * | |
27 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
28 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
29 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
30 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
31 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
35 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
36 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
37 | * SUCH DAMAGE. | |
38 | * | |
39 | * $FreeBSD: src/sys/sys/elf64.h,v 1.10.14.2 2007/12/03 21:30:36 marius Exp $ | |
40 | */ | |
41 | ||
42 | #ifndef _SYS_ELF64_H_ | |
43 | #define _SYS_ELF64_H_ 1 | |
44 | ||
45 | ||
46 | /* | |
47 | * ELF definitions common to all 64-bit architectures. | |
48 | */ | |
49 | ||
50 | typedef UINT64 Elf64_Addr; | |
51 | typedef UINT16 Elf64_Half; | |
52 | typedef UINT64 Elf64_Off; | |
53 | typedef INT32 Elf64_Sword; | |
54 | typedef INT64 Elf64_Sxword; | |
55 | typedef UINT32 Elf64_Word; | |
56 | typedef UINT64 Elf64_Lword; | |
57 | typedef UINT64 Elf64_Xword; | |
58 | ||
59 | /* | |
60 | * Types of dynamic symbol hash table bucket and chain elements. | |
61 | * | |
62 | * This is inconsistent among 64 bit architectures, so a machine dependent | |
63 | * typedef is required. | |
64 | */ | |
65 | ||
66 | typedef Elf64_Word Elf64_Hashelt; | |
67 | ||
68 | /* Non-standard class-dependent datatype used for abstraction. */ | |
69 | typedef Elf64_Xword Elf64_Size; | |
70 | typedef Elf64_Sxword Elf64_Ssize; | |
71 | ||
72 | /* | |
73 | * ELF header. | |
74 | */ | |
75 | ||
76 | typedef struct { | |
77 | unsigned char e_ident[EI_NIDENT]; /* File identification. */ | |
78 | Elf64_Half e_type; /* File type. */ | |
79 | Elf64_Half e_machine; /* Machine architecture. */ | |
80 | Elf64_Word e_version; /* ELF format version. */ | |
81 | Elf64_Addr e_entry; /* Entry point. */ | |
82 | Elf64_Off e_phoff; /* Program header file offset. */ | |
83 | Elf64_Off e_shoff; /* Section header file offset. */ | |
84 | Elf64_Word e_flags; /* Architecture-specific flags. */ | |
85 | Elf64_Half e_ehsize; /* Size of ELF header in bytes. */ | |
86 | Elf64_Half e_phentsize; /* Size of program header entry. */ | |
87 | Elf64_Half e_phnum; /* Number of program header entries. */ | |
88 | Elf64_Half e_shentsize; /* Size of section header entry. */ | |
89 | Elf64_Half e_shnum; /* Number of section header entries. */ | |
90 | Elf64_Half e_shstrndx; /* Section name strings section. */ | |
91 | } Elf64_Ehdr; | |
92 | ||
93 | /* | |
94 | * Section header. | |
95 | */ | |
96 | ||
97 | typedef struct { | |
98 | Elf64_Word sh_name; /* Section name (index into the | |
99 | section header string table). */ | |
100 | Elf64_Word sh_type; /* Section type. */ | |
101 | Elf64_Xword sh_flags; /* Section flags. */ | |
102 | Elf64_Addr sh_addr; /* Address in memory image. */ | |
103 | Elf64_Off sh_offset; /* Offset in file. */ | |
104 | Elf64_Xword sh_size; /* Size in bytes. */ | |
105 | Elf64_Word sh_link; /* Index of a related section. */ | |
106 | Elf64_Word sh_info; /* Depends on section type. */ | |
107 | Elf64_Xword sh_addralign; /* Alignment in bytes. */ | |
108 | Elf64_Xword sh_entsize; /* Size of each entry in section. */ | |
109 | } Elf64_Shdr; | |
110 | ||
111 | /* | |
112 | * Program header. | |
113 | */ | |
114 | ||
115 | typedef struct { | |
116 | Elf64_Word p_type; /* Entry type. */ | |
117 | Elf64_Word p_flags; /* Access permission flags. */ | |
118 | Elf64_Off p_offset; /* File offset of contents. */ | |
119 | Elf64_Addr p_vaddr; /* Virtual address in memory image. */ | |
120 | Elf64_Addr p_paddr; /* Physical address (not used). */ | |
121 | Elf64_Xword p_filesz; /* Size of contents in file. */ | |
122 | Elf64_Xword p_memsz; /* Size of contents in memory. */ | |
123 | Elf64_Xword p_align; /* Alignment in memory and file. */ | |
124 | } Elf64_Phdr; | |
125 | ||
126 | /* | |
127 | * Dynamic structure. The ".dynamic" section contains an array of them. | |
128 | */ | |
129 | ||
130 | typedef struct { | |
131 | Elf64_Sxword d_tag; /* Entry type. */ | |
132 | union { | |
133 | Elf64_Xword d_val; /* Integer value. */ | |
134 | Elf64_Addr d_ptr; /* Address value. */ | |
135 | } d_un; | |
136 | } Elf64_Dyn; | |
137 | ||
138 | /* | |
139 | * Relocation entries. | |
140 | */ | |
141 | ||
142 | /* Relocations that don't need an addend field. */ | |
143 | typedef struct { | |
144 | Elf64_Addr r_offset; /* Location to be relocated. */ | |
145 | Elf64_Xword r_info; /* Relocation type and symbol index. */ | |
146 | } Elf64_Rel; | |
147 | ||
148 | /* Relocations that need an addend field. */ | |
149 | typedef struct { | |
150 | Elf64_Addr r_offset; /* Location to be relocated. */ | |
151 | Elf64_Xword r_info; /* Relocation type and symbol index. */ | |
152 | Elf64_Sxword r_addend; /* Addend. */ | |
153 | } Elf64_Rela; | |
154 | ||
155 | /* Macros for accessing the fields of r_info. */ | |
156 | #define ELF64_R_SYM(info) ((info) >> 32) | |
157 | #define ELF64_R_TYPE(info) ((info) & 0xffffffffL) | |
158 | ||
159 | /* Macro for constructing r_info from field values. */ | |
160 | #define ELF64_R_INFO(sym, type) (((sym) << 32) + ((type) & 0xffffffffL)) | |
161 | ||
162 | #define ELF64_R_TYPE_DATA(info) (((Elf64_Xword)(info)<<32)>>40) | |
163 | #define ELF64_R_TYPE_ID(info) (((Elf64_Xword)(info)<<56)>>56) | |
164 | #define ELF64_R_TYPE_INFO(data, type) \ | |
165 | (((Elf64_Xword)(data)<<8)+(Elf64_Xword)(type)) | |
166 | ||
167 | /* | |
168 | * Note entry header | |
169 | */ | |
170 | typedef Elf_Note Elf64_Nhdr; | |
171 | ||
172 | /* | |
173 | * Move entry | |
174 | */ | |
175 | typedef struct { | |
176 | Elf64_Lword m_value; /* symbol value */ | |
177 | Elf64_Xword m_info; /* size + index */ | |
178 | Elf64_Xword m_poffset; /* symbol offset */ | |
179 | Elf64_Half m_repeat; /* repeat count */ | |
180 | Elf64_Half m_stride; /* stride info */ | |
181 | } Elf64_Move; | |
182 | ||
183 | #define ELF64_M_SYM(info) ((info)>>8) | |
184 | #define ELF64_M_SIZE(info) ((unsigned char)(info)) | |
185 | #define ELF64_M_INFO(sym, size) (((sym)<<8)+(unsigned char)(size)) | |
186 | ||
187 | /* | |
188 | * Hardware/Software capabilities entry | |
189 | */ | |
190 | typedef struct { | |
191 | Elf64_Xword c_tag; /* how to interpret value */ | |
192 | union { | |
193 | Elf64_Xword c_val; | |
194 | Elf64_Addr c_ptr; | |
195 | } c_un; | |
196 | } Elf64_Cap; | |
197 | ||
198 | /* | |
199 | * Symbol table entries. | |
200 | */ | |
201 | ||
202 | typedef struct { | |
203 | Elf64_Word st_name; /* String table index of name. */ | |
204 | unsigned char st_info; /* Type and binding information. */ | |
205 | unsigned char st_other; /* Reserved (not used). */ | |
206 | Elf64_Half st_shndx; /* Section index of symbol. */ | |
207 | Elf64_Addr st_value; /* Symbol value. */ | |
208 | Elf64_Xword st_size; /* Size of associated object. */ | |
209 | } Elf64_Sym; | |
210 | ||
211 | /* Macros for accessing the fields of st_info. */ | |
212 | #define ELF64_ST_BIND(info) ((info) >> 4) | |
213 | #define ELF64_ST_TYPE(info) ((info) & 0xf) | |
214 | ||
215 | /* Macro for constructing st_info from field values. */ | |
216 | #define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) | |
217 | ||
218 | /* Macro for accessing the fields of st_other. */ | |
219 | #define ELF64_ST_VISIBILITY(oth) ((oth) & 0x3) | |
220 | ||
221 | /* Structures used by Sun & GNU-style symbol versioning. */ | |
222 | typedef struct { | |
223 | Elf64_Half vd_version; | |
224 | Elf64_Half vd_flags; | |
225 | Elf64_Half vd_ndx; | |
226 | Elf64_Half vd_cnt; | |
227 | Elf64_Word vd_hash; | |
228 | Elf64_Word vd_aux; | |
229 | Elf64_Word vd_next; | |
230 | } Elf64_Verdef; | |
231 | ||
232 | typedef struct { | |
233 | Elf64_Word vda_name; | |
234 | Elf64_Word vda_next; | |
235 | } Elf64_Verdaux; | |
236 | ||
237 | typedef struct { | |
238 | Elf64_Half vn_version; | |
239 | Elf64_Half vn_cnt; | |
240 | Elf64_Word vn_file; | |
241 | Elf64_Word vn_aux; | |
242 | Elf64_Word vn_next; | |
243 | } Elf64_Verneed; | |
244 | ||
245 | typedef struct { | |
246 | Elf64_Word vna_hash; | |
247 | Elf64_Half vna_flags; | |
248 | Elf64_Half vna_other; | |
249 | Elf64_Word vna_name; | |
250 | Elf64_Word vna_next; | |
251 | } Elf64_Vernaux; | |
252 | ||
253 | typedef Elf64_Half Elf64_Versym; | |
254 | ||
255 | typedef struct { | |
256 | Elf64_Half si_boundto; /* direct bindings - symbol bound to */ | |
257 | Elf64_Half si_flags; /* per symbol flags */ | |
258 | } Elf64_Syminfo; | |
259 | ||
260 | #endif /* !_SYS_ELF64_H_ */ |