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28f540f4 | 1 | /* This file defines standard ELF types, structures, and macros. |
a2e1b046 | 2 | Copyright (C) 1995, 1996 Free Software Foundation, Inc. |
28f540f4 RM |
3 | Contributed by Ian Lance Taylor (ian@cygnus.com). |
4 | ||
5 | This file is part of the GNU C Library. | |
6 | ||
7 | The GNU C Library is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU Library General Public License as | |
9 | published by the Free Software Foundation; either version 2 of the | |
10 | License, or (at your option) any later version. | |
11 | ||
12 | The GNU C Library is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Library General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Library General Public | |
18 | License along with the GNU C Library; see the file COPYING.LIB. If | |
19 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
20 | Cambridge, MA 02139, USA. */ | |
21 | ||
22 | #ifndef _ELF_H | |
23 | #define _ELF_H 1 | |
24 | ||
25 | ||
266180eb RM |
26 | /* Standard ELF types. Using __attribute__ mode ensures that GCC |
27 | will choose the right number of bits for these types. */ | |
28f540f4 | 28 | |
266180eb RM |
29 | /* Type for a 16-bit quantity. */ |
30 | typedef unsigned int Elf32_Half __attribute__ ((mode (HI))); | |
31 | typedef unsigned int Elf64_Half __attribute__ ((mode (HI))); | |
32 | ||
33 | /* Types for signed and unsigned 32-bit quantities. */ | |
34 | typedef unsigned int Elf32_Word __attribute__ ((mode (SI))); | |
35 | typedef int Elf32_Sword __attribute__ ((mode (SI))); | |
36 | typedef unsigned int Elf64_Word __attribute__ ((mode (SI))); | |
37 | typedef int Elf64_Sword __attribute__ ((mode (SI))); | |
38 | ||
39 | /* Types for signed and unsigned 64-bit quantities. */ | |
40 | typedef unsigned int Elf32_Xword __attribute__ ((mode (DI))); | |
41 | typedef int Elf32_Sxword __attribute__ ((mode (DI))); | |
42 | typedef unsigned int Elf64_Xword __attribute__ ((mode (DI))); | |
43 | typedef int Elf64_Sxword __attribute__ ((mode (DI))); | |
28f540f4 | 44 | |
266180eb | 45 | /* Type of addresses. */ |
28f540f4 | 46 | typedef unsigned int Elf32_Addr __attribute__ ((mode (SI))); |
266180eb RM |
47 | typedef unsigned int Elf64_Addr __attribute__ ((mode (DI))); |
48 | ||
49 | /* Type of file offsets. */ | |
28f540f4 | 50 | typedef unsigned int Elf32_Off __attribute__ ((mode (SI))); |
266180eb RM |
51 | typedef unsigned int Elf64_Off __attribute__ ((mode (DI))); |
52 | ||
53 | /* Type for section indices, which are 16-bit quantities. */ | |
54 | typedef unsigned int Elf32_Section __attribute__ ((mode (HI))); | |
55 | typedef unsigned int Elf64_Section __attribute__ ((mode (HI))); | |
56 | ||
8d6468d0 RM |
57 | /* Type of symbol indices. */ |
58 | typedef unsigned int Elf32_Symndx __attribute__ ((mode (SI))); | |
59 | typedef unsigned int Elf64_Symndx __attribute__ ((mode (DI))); | |
60 | ||
28f540f4 RM |
61 | |
62 | /* The ELF file header. This appears at the start of every ELF file. */ | |
63 | ||
64 | #define EI_NIDENT (16) | |
65 | ||
66 | typedef struct | |
67 | { | |
68 | unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ | |
69 | Elf32_Half e_type; /* Object file type */ | |
70 | Elf32_Half e_machine; /* Architecture */ | |
71 | Elf32_Word e_version; /* Object file version */ | |
72 | Elf32_Addr e_entry; /* Entry point virtual address */ | |
73 | Elf32_Off e_phoff; /* Program header table file offset */ | |
74 | Elf32_Off e_shoff; /* Section header table file offset */ | |
75 | Elf32_Word e_flags; /* Processor-specific flags */ | |
76 | Elf32_Half e_ehsize; /* ELF header size in bytes */ | |
77 | Elf32_Half e_phentsize; /* Program header table entry size */ | |
78 | Elf32_Half e_phnum; /* Program header table entry count */ | |
79 | Elf32_Half e_shentsize; /* Section header table entry size */ | |
80 | Elf32_Half e_shnum; /* Section header table entry count */ | |
81 | Elf32_Half e_shstrndx; /* Section header string table index */ | |
82 | } Elf32_Ehdr; | |
83 | ||
266180eb RM |
84 | typedef struct |
85 | { | |
86 | unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ | |
87 | Elf64_Half e_type; /* Object file type */ | |
88 | Elf64_Half e_machine; /* Architecture */ | |
89 | Elf64_Word e_version; /* Object file version */ | |
90 | Elf64_Addr e_entry; /* Entry point virtual address */ | |
91 | Elf64_Off e_phoff; /* Program header table file offset */ | |
92 | Elf64_Off e_shoff; /* Section header table file offset */ | |
93 | Elf64_Word e_flags; /* Processor-specific flags */ | |
94 | Elf64_Half e_ehsize; /* ELF header size in bytes */ | |
95 | Elf64_Half e_phentsize; /* Program header table entry size */ | |
96 | Elf64_Half e_phnum; /* Program header table entry count */ | |
97 | Elf64_Half e_shentsize; /* Section header table entry size */ | |
98 | Elf64_Half e_shnum; /* Section header table entry count */ | |
99 | Elf64_Half e_shstrndx; /* Section header string table index */ | |
100 | } Elf64_Ehdr; | |
101 | ||
28f540f4 RM |
102 | /* Fields in the e_ident array. The EI_* macros are indices into the |
103 | array. The macros under each EI_* macro are the values the byte | |
104 | may have. */ | |
105 | ||
106 | #define EI_MAG0 0 /* File identification byte 0 index */ | |
107 | #define ELFMAG0 0x7f /* Magic number byte 0 */ | |
108 | ||
109 | #define EI_MAG1 1 /* File identification byte 1 index */ | |
110 | #define ELFMAG1 'E' /* Magic number byte 1 */ | |
111 | ||
112 | #define EI_MAG2 2 /* File identification byte 2 index */ | |
113 | #define ELFMAG2 'L' /* Magic number byte 2 */ | |
114 | ||
115 | #define EI_MAG3 3 /* File identification byte 3 index */ | |
116 | #define ELFMAG3 'F' /* Magic number byte 3 */ | |
117 | ||
b7976c00 | 118 | /* Conglomeration of the identification bytes, for easy testing as a word. */ |
75598ca6 | 119 | #define ELFMAG "\177ELF" |
b7976c00 RM |
120 | #define SELFMAG 4 |
121 | ||
28f540f4 RM |
122 | #define EI_CLASS 4 /* File class byte index */ |
123 | #define ELFCLASSNONE 0 /* Invalid class */ | |
124 | #define ELFCLASS32 1 /* 32-bit objects */ | |
125 | #define ELFCLASS64 2 /* 64-bit objects */ | |
126 | ||
127 | #define EI_DATA 5 /* Data encoding byte index */ | |
128 | #define ELFDATANONE 0 /* Invalid data encoding */ | |
129 | #define ELFDATA2LSB 1 /* 2's complement, little endian */ | |
130 | #define ELFDATA2MSB 2 /* 2's complement, big endian */ | |
131 | ||
132 | #define EI_VERSION 6 /* File version byte index */ | |
133 | /* Value must be EV_CURRENT */ | |
134 | ||
135 | #define EI_PAD 7 /* Byte index of padding bytes */ | |
136 | ||
137 | /* Legal values for e_type (object file type). */ | |
138 | ||
139 | #define ET_NONE 0 /* No file type */ | |
140 | #define ET_REL 1 /* Relocatable file */ | |
141 | #define ET_EXEC 2 /* Executable file */ | |
142 | #define ET_DYN 3 /* Shared object file */ | |
143 | #define ET_CORE 4 /* Core file */ | |
787e4db9 | 144 | #define ET_NUM 5 /* Number of defined types. */ |
28f540f4 RM |
145 | #define ET_LOPROC 0xff00 /* Processor-specific */ |
146 | #define ET_HIPROC 0xffff /* Processor-specific */ | |
147 | ||
148 | /* Legal values for e_machine (architecture). */ | |
149 | ||
150 | #define EM_NONE 0 /* No machine */ | |
151 | #define EM_M32 1 /* AT&T WE 32100 */ | |
152 | #define EM_SPARC 2 /* SUN SPARC */ | |
153 | #define EM_386 3 /* Intel 80386 */ | |
154 | #define EM_68K 4 /* Motorola m68k family */ | |
155 | #define EM_88K 5 /* Motorola m88k family */ | |
156 | #define EM_486 6 /* Intel 80486 */ | |
157 | #define EM_860 7 /* Intel 80860 */ | |
158 | #define EM_MIPS 8 /* MIPS R3000 big-endian */ | |
9fd18b6c | 159 | #define EM_S370 9 /* Amdahl */ |
28f540f4 RM |
160 | #define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */ |
161 | ||
162 | #define EM_SPARC64 11 /* SPARC v9 (not official) 64-bit */ | |
163 | ||
164 | #define EM_PARISC 15 /* HPPA */ | |
0200214b | 165 | #define EM_PPC 20 /* PowerPC */ |
28f540f4 RM |
166 | |
167 | /* If it is necessary to assign new unofficial EM_* values, please | |
168 | pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the | |
169 | chances of collision with official or non-GNU unofficial values. */ | |
170 | ||
266180eb RM |
171 | #define EM_ALPHA 0x9026 |
172 | ||
28f540f4 RM |
173 | /* Legal values for e_version (version). */ |
174 | ||
175 | #define EV_NONE 0 /* Invalid ELF version */ | |
176 | #define EV_CURRENT 1 /* Current version */ | |
177 | ||
178 | /* Section header. */ | |
179 | ||
180 | typedef struct | |
181 | { | |
182 | Elf32_Word sh_name; /* Section name (string tbl index) */ | |
183 | Elf32_Word sh_type; /* Section type */ | |
184 | Elf32_Word sh_flags; /* Section flags */ | |
185 | Elf32_Addr sh_addr; /* Section virtual addr at execution */ | |
186 | Elf32_Off sh_offset; /* Section file offset */ | |
187 | Elf32_Word sh_size; /* Section size in bytes */ | |
188 | Elf32_Word sh_link; /* Link to another section */ | |
189 | Elf32_Word sh_info; /* Additional section information */ | |
190 | Elf32_Word sh_addralign; /* Section alignment */ | |
191 | Elf32_Word sh_entsize; /* Entry size if section holds table */ | |
192 | } Elf32_Shdr; | |
193 | ||
266180eb RM |
194 | typedef struct |
195 | { | |
196 | Elf64_Word sh_name; /* Section name (string tbl index) */ | |
197 | Elf64_Word sh_type; /* Section type */ | |
198 | Elf64_Xword sh_flags; /* Section flags */ | |
199 | Elf64_Addr sh_addr; /* Section virtual addr at execution */ | |
200 | Elf64_Off sh_offset; /* Section file offset */ | |
201 | Elf64_Xword sh_size; /* Section size in bytes */ | |
202 | Elf64_Word sh_link; /* Link to another section */ | |
203 | Elf64_Word sh_info; /* Additional section information */ | |
204 | Elf64_Xword sh_addralign; /* Section alignment */ | |
205 | Elf64_Xword sh_entsize; /* Entry size if section holds table */ | |
206 | } Elf64_Shdr; | |
207 | ||
28f540f4 RM |
208 | /* Special section indices. */ |
209 | ||
210 | #define SHN_UNDEF 0 /* Undefined section */ | |
211 | #define SHN_LORESERVE 0xff00 /* Start of reserved indices */ | |
212 | #define SHN_LOPROC 0xff00 /* Start of processor-specific */ | |
213 | #define SHN_HIPROC 0xff1f /* End of processor-specific */ | |
214 | #define SHN_ABS 0xfff1 /* Associated symbol is absolute */ | |
215 | #define SHN_COMMON 0xfff2 /* Associated symbol is common */ | |
216 | #define SHN_HIRESERVE 0xffff /* End of reserved indices */ | |
217 | ||
218 | /* Legal values for sh_type (section type). */ | |
219 | ||
220 | #define SHT_NULL 0 /* Section header table entry unused */ | |
221 | #define SHT_PROGBITS 1 /* Program data */ | |
222 | #define SHT_SYMTAB 2 /* Symbol table */ | |
223 | #define SHT_STRTAB 3 /* String table */ | |
224 | #define SHT_RELA 4 /* Relocation entries with addends */ | |
225 | #define SHT_HASH 5 /* Symbol hash table */ | |
226 | #define SHT_DYNAMIC 6 /* Dynamic linking information */ | |
227 | #define SHT_NOTE 7 /* Notes */ | |
228 | #define SHT_NOBITS 8 /* Program space with no data (bss) */ | |
229 | #define SHT_REL 9 /* Relocation entries, no addends */ | |
230 | #define SHT_SHLIB 10 /* Reserved */ | |
231 | #define SHT_DYNSYM 11 /* Dynamic linker symbol table */ | |
787e4db9 | 232 | #define SHT_NUM 12 /* Number of defined types. */ |
28f540f4 RM |
233 | #define SHT_LOPROC 0x70000000 /* Start of processor-specific */ |
234 | #define SHT_HIPROC 0x7fffffff /* End of processor-specific */ | |
235 | #define SHT_LOUSER 0x80000000 /* Start of application-specific */ | |
236 | #define SHT_HIUSER 0x8fffffff /* End of application-specific */ | |
237 | ||
238 | /* Legal values for sh_flags (section flags). */ | |
239 | ||
240 | #define SHF_WRITE (1 << 0) /* Writable */ | |
241 | #define SHF_ALLOC (1 << 1) /* Occupies memory during execution */ | |
242 | #define SHF_EXECINSTR (1 << 2) /* Executable */ | |
243 | #define SHF_MASKPROC 0xf0000000 /* Processor-specific */ | |
244 | ||
245 | /* Symbol table entry. */ | |
246 | ||
247 | typedef struct | |
248 | { | |
249 | Elf32_Word st_name; /* Symbol name (string tbl index) */ | |
250 | Elf32_Addr st_value; /* Symbol value */ | |
251 | Elf32_Word st_size; /* Symbol size */ | |
252 | unsigned char st_info; /* Symbol type and binding */ | |
253 | unsigned char st_other; /* No defined meaning, 0 */ | |
266180eb | 254 | Elf32_Section st_shndx; /* Section index */ |
28f540f4 RM |
255 | } Elf32_Sym; |
256 | ||
266180eb RM |
257 | typedef struct |
258 | { | |
259 | Elf64_Word st_name; /* Symbol name (string tbl index) */ | |
260 | unsigned char st_info; /* Symbol type and binding */ | |
261 | unsigned char st_other; /* No defined meaning, 0 */ | |
262 | Elf64_Section st_shndx; /* Section index */ | |
263 | Elf64_Addr st_value; /* Symbol value */ | |
264 | Elf64_Xword st_size; /* Symbol size */ | |
265 | } Elf64_Sym; | |
266 | ||
b1f11361 | 267 | /* Special section index. */ |
28f540f4 | 268 | |
b1f11361 | 269 | #define SHN_UNDEF 0 /* No section, undefined symbol. */ |
28f540f4 RM |
270 | |
271 | /* How to extract and insert information held in the st_info field. */ | |
272 | ||
273 | #define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4) | |
274 | #define ELF32_ST_TYPE(val) ((val) & 0xf) | |
275 | #define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) | |
276 | ||
266180eb RM |
277 | /* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */ |
278 | #define ELF64_ST_BIND(val) ELF32_ST_BIND (val) | |
279 | #define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val) | |
280 | #define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type)) | |
281 | ||
28f540f4 RM |
282 | /* Legal values for ST_BIND subfield of st_info (symbol binding). */ |
283 | ||
284 | #define STB_LOCAL 0 /* Local symbol */ | |
285 | #define STB_GLOBAL 1 /* Global symbol */ | |
286 | #define STB_WEAK 2 /* Weak symbol */ | |
787e4db9 | 287 | #define STB_NUM 3 /* Number of defined types. */ |
28f540f4 RM |
288 | #define STB_LOPROC 13 /* Start of processor-specific */ |
289 | #define STB_HIPROC 15 /* End of processor-specific */ | |
290 | ||
291 | /* Legal values for ST_TYPE subfield of st_info (symbol type). */ | |
292 | ||
293 | #define STT_NOTYPE 0 /* Symbol type is unspecified */ | |
294 | #define STT_OBJECT 1 /* Symbol is a data object */ | |
295 | #define STT_FUNC 2 /* Symbol is a code object */ | |
296 | #define STT_SECTION 3 /* Symbol associated with a section */ | |
297 | #define STT_FILE 4 /* Symbol's name is file name */ | |
787e4db9 | 298 | #define STT_NUM 5 /* Number of defined types. */ |
28f540f4 RM |
299 | #define STT_LOPROC 13 /* Start of processor-specific */ |
300 | #define STT_HIPROC 15 /* End of processor-specific */ | |
301 | ||
b1f11361 RM |
302 | |
303 | /* Symbol table indices are found in the hash buckets and chain table | |
304 | of a symbol hash table section. This special index value indicates | |
305 | the end of a chain, meaning no further symbols are found in that bucket. */ | |
306 | ||
307 | #define STN_UNDEF 0 /* End of a chain. */ | |
308 | ||
309 | ||
28f540f4 RM |
310 | /* Relocation table entry without addend (in section of type SHT_REL). */ |
311 | ||
312 | typedef struct | |
313 | { | |
314 | Elf32_Addr r_offset; /* Address */ | |
315 | Elf32_Word r_info; /* Relocation type and symbol index */ | |
316 | } Elf32_Rel; | |
317 | ||
266180eb RM |
318 | /* I have seen two different definitions of the Elf64_Rel and |
319 | Elf64_Rela structures, so we'll leave them out until Novell (or | |
320 | whoever) gets their act together. */ | |
321 | /* The following, at least, is used on Sparc v9, MIPS, and Alpha. */ | |
322 | ||
323 | typedef struct | |
324 | { | |
325 | Elf64_Addr r_offset; /* Address */ | |
326 | Elf64_Xword r_info; /* Relocation type and symbol index */ | |
327 | } Elf64_Rel; | |
328 | ||
28f540f4 RM |
329 | /* Relocation table entry with addend (in section of type SHT_RELA). */ |
330 | ||
331 | typedef struct | |
332 | { | |
333 | Elf32_Addr r_offset; /* Address */ | |
334 | Elf32_Word r_info; /* Relocation type and symbol index */ | |
335 | Elf32_Sword r_addend; /* Addend */ | |
336 | } Elf32_Rela; | |
337 | ||
266180eb RM |
338 | typedef struct |
339 | { | |
340 | Elf64_Addr r_offset; /* Address */ | |
341 | Elf64_Xword r_info; /* Relocation type and symbol index */ | |
342 | Elf64_Sxword r_addend; /* Addend */ | |
343 | } Elf64_Rela; | |
344 | ||
28f540f4 RM |
345 | /* How to extract and insert information held in the r_info field. */ |
346 | ||
347 | #define ELF32_R_SYM(val) ((val) >> 8) | |
348 | #define ELF32_R_TYPE(val) ((val) & 0xff) | |
349 | #define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff)) | |
350 | ||
0200214b RM |
351 | #define ELF64_R_SYM(i) ((i) >> 32) |
352 | #define ELF64_R_TYPE(i) ((i) & 0xffffffff) | |
353 | #define ELF64_R_INFO(sym,type) (((sym) << 32) + (type)) | |
354 | ||
28f540f4 RM |
355 | /* Program segment header. */ |
356 | ||
266180eb RM |
357 | typedef struct |
358 | { | |
28f540f4 RM |
359 | Elf32_Word p_type; /* Segment type */ |
360 | Elf32_Off p_offset; /* Segment file offset */ | |
361 | Elf32_Addr p_vaddr; /* Segment virtual address */ | |
362 | Elf32_Addr p_paddr; /* Segment physical address */ | |
363 | Elf32_Word p_filesz; /* Segment size in file */ | |
364 | Elf32_Word p_memsz; /* Segment size in memory */ | |
365 | Elf32_Word p_flags; /* Segment flags */ | |
366 | Elf32_Word p_align; /* Segment alignment */ | |
367 | } Elf32_Phdr; | |
368 | ||
266180eb RM |
369 | typedef struct |
370 | { | |
371 | Elf64_Word p_type; /* Segment type */ | |
372 | Elf64_Word p_flags; /* Segment flags */ | |
373 | Elf64_Off p_offset; /* Segment file offset */ | |
374 | Elf64_Addr p_vaddr; /* Segment virtual address */ | |
375 | Elf64_Addr p_paddr; /* Segment physical address */ | |
376 | Elf64_Xword p_filesz; /* Segment size in file */ | |
377 | Elf64_Xword p_memsz; /* Segment size in memory */ | |
378 | Elf64_Xword p_align; /* Segment alignment */ | |
379 | } Elf64_Phdr; | |
380 | ||
28f540f4 RM |
381 | /* Legal values for p_type (segment type). */ |
382 | ||
383 | #define PT_NULL 0 /* Program header table entry unused */ | |
384 | #define PT_LOAD 1 /* Loadable program segment */ | |
385 | #define PT_DYNAMIC 2 /* Dynamic linking information */ | |
386 | #define PT_INTERP 3 /* Program interpreter */ | |
387 | #define PT_NOTE 4 /* Auxiliary information */ | |
388 | #define PT_SHLIB 5 /* Reserved */ | |
389 | #define PT_PHDR 6 /* Entry for header table itself */ | |
787e4db9 | 390 | #define PT_NUM 7 /* Number of defined types. */ |
28f540f4 RM |
391 | #define PT_LOPROC 0x70000000 /* Start of processor-specific */ |
392 | #define PT_HIPROC 0x7fffffff /* End of processor-specific */ | |
393 | ||
394 | /* Legal values for p_flags (segment flags). */ | |
395 | ||
396 | #define PF_X (1 << 0) /* Segment is executable */ | |
397 | #define PF_W (1 << 1) /* Segment is writable */ | |
398 | #define PF_R (1 << 2) /* Segment is readable */ | |
399 | #define PF_MASKPROC 0xf0000000 /* Processor-specific */ | |
400 | ||
0200214b RM |
401 | /* Legal values for note segment descriptor types for core files. */ |
402 | ||
403 | #define NT_PRSTATUS 1 /* Contains copy of prstatus struct */ | |
404 | #define NT_FPREGSET 2 /* Contains copy of fpregset struct */ | |
405 | #define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */ | |
406 | ||
407 | /* Legal values for the note segment descriptor types for object files. */ | |
408 | ||
409 | #define NT_VERSION 1 /* Contains a version string. */ | |
410 | ||
411 | ||
28f540f4 RM |
412 | /* Dynamic section entry. */ |
413 | ||
414 | typedef struct | |
415 | { | |
416 | Elf32_Sword d_tag; /* Dynamic entry type */ | |
417 | union | |
418 | { | |
419 | Elf32_Word d_val; /* Integer value */ | |
420 | Elf32_Addr d_ptr; /* Address value */ | |
421 | } d_un; | |
422 | } Elf32_Dyn; | |
423 | ||
266180eb RM |
424 | typedef struct |
425 | { | |
426 | Elf64_Sxword d_tag; /* Dynamic entry type */ | |
427 | union | |
428 | { | |
429 | Elf64_Xword d_val; /* Integer value */ | |
430 | Elf64_Addr d_ptr; /* Address value */ | |
431 | } d_un; | |
432 | } Elf64_Dyn; | |
433 | ||
28f540f4 RM |
434 | /* Legal values for d_tag (dynamic entry type). */ |
435 | ||
436 | #define DT_NULL 0 /* Marks end of dynamic section */ | |
437 | #define DT_NEEDED 1 /* Name of needed library */ | |
438 | #define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */ | |
439 | #define DT_PLTGOT 3 /* Processor defined value */ | |
440 | #define DT_HASH 4 /* Address of symbol hash table */ | |
441 | #define DT_STRTAB 5 /* Address of string table */ | |
442 | #define DT_SYMTAB 6 /* Address of symbol table */ | |
443 | #define DT_RELA 7 /* Address of Rela relocs */ | |
444 | #define DT_RELASZ 8 /* Total size of Rela relocs */ | |
445 | #define DT_RELAENT 9 /* Size of one Rela reloc */ | |
446 | #define DT_STRSZ 10 /* Size of string table */ | |
447 | #define DT_SYMENT 11 /* Size of one symbol table entry */ | |
448 | #define DT_INIT 12 /* Address of init function */ | |
449 | #define DT_FINI 13 /* Address of termination function */ | |
450 | #define DT_SONAME 14 /* Name of shared object */ | |
451 | #define DT_RPATH 15 /* Library search path */ | |
452 | #define DT_SYMBOLIC 16 /* Start symbol search here */ | |
453 | #define DT_REL 17 /* Address of Rel relocs */ | |
454 | #define DT_RELSZ 18 /* Total size of Rel relocs */ | |
455 | #define DT_RELENT 19 /* Size of one Rel reloc */ | |
456 | #define DT_PLTREL 20 /* Type of reloc in PLT */ | |
457 | #define DT_DEBUG 21 /* For debugging; unspecified */ | |
458 | #define DT_TEXTREL 22 /* Reloc might modify .text */ | |
459 | #define DT_JMPREL 23 /* Address of PLT relocs */ | |
a2e1b046 | 460 | #define DT_NUM 24 /* Number used */ |
28f540f4 RM |
461 | #define DT_LOPROC 0x70000000 /* Start of processor-specific */ |
462 | #define DT_HIPROC 0x7fffffff /* End of processor-specific */ | |
a2e1b046 | 463 | #define DT_PROCNUM DT_MIPS_NUM /* Most used by any processor */ |
28f540f4 | 464 | |
28f540f4 RM |
465 | /* Auxiliary vector. */ |
466 | ||
467 | /* This vector is normally only used by the program interpreter. The | |
468 | usual definition in an ABI supplement uses the name auxv_t. The | |
469 | vector is not usually defined in a standard <elf.h> file, but it | |
470 | can't hurt. We rename it to avoid conflicts. The sizes of these | |
471 | types are an arrangement between the exec server and the program | |
472 | interpreter, so we don't fully specify them here. */ | |
473 | ||
474 | typedef struct | |
475 | { | |
6025c399 | 476 | int a_type; /* Entry type */ |
28f540f4 RM |
477 | union |
478 | { | |
6025c399 RM |
479 | long int a_val; /* Integer value */ |
480 | void *a_ptr; /* Pointer value */ | |
481 | void (*a_fcn) (void); /* Function pointer value */ | |
28f540f4 RM |
482 | } a_un; |
483 | } Elf32_auxv_t; | |
484 | ||
266180eb RM |
485 | typedef struct |
486 | { | |
487 | long int a_type; /* Entry type */ | |
488 | union | |
489 | { | |
490 | long int a_val; /* Integer value */ | |
491 | void *a_ptr; /* Pointer value */ | |
492 | void (*a_fcn) (void); /* Function pointer value */ | |
493 | } a_un; | |
494 | } Elf64_auxv_t; | |
495 | ||
28f540f4 RM |
496 | /* Legal values for a_type (entry type). */ |
497 | ||
498 | #define AT_NULL 0 /* End of vector */ | |
499 | #define AT_IGNORE 1 /* Entry should be ignored */ | |
500 | #define AT_EXECFD 2 /* File descriptor of program */ | |
501 | #define AT_PHDR 3 /* Program headers for program */ | |
502 | #define AT_PHENT 4 /* Size of program header entry */ | |
503 | #define AT_PHNUM 5 /* Number of program headers */ | |
504 | #define AT_PAGESZ 6 /* System page size */ | |
505 | #define AT_BASE 7 /* Base address of interpreter */ | |
506 | #define AT_FLAGS 8 /* Flags */ | |
507 | #define AT_ENTRY 9 /* Entry point of program */ | |
508 | #define AT_NOTELF 10 /* Program is not ELF */ | |
509 | #define AT_UID 11 /* Real uid */ | |
510 | #define AT_EUID 12 /* Effective uid */ | |
60478656 | 511 | #define AT_GID 13 /* Real gid */ |
28f540f4 RM |
512 | #define AT_EGID 14 /* Effective gid */ |
513 | ||
01f3e03b RM |
514 | /* Motorola 68k specific definitions. */ |
515 | ||
516 | /* m68k relocs. */ | |
517 | ||
518 | #define R_68K_NONE 0 /* No reloc */ | |
519 | #define R_68K_32 1 /* Direct 32 bit */ | |
520 | #define R_68K_16 2 /* Direct 16 bit */ | |
521 | #define R_68K_8 3 /* Direct 8 bit */ | |
522 | #define R_68K_PC32 4 /* PC relative 32 bit */ | |
523 | #define R_68K_PC16 5 /* PC relative 16 bit */ | |
524 | #define R_68K_PC8 6 /* PC relative 8 bit */ | |
525 | #define R_68K_GOT32 7 /* 32 bit PC relative GOT entry */ | |
526 | #define R_68K_GOT16 8 /* 16 bit PC relative GOT entry */ | |
527 | #define R_68K_GOT8 9 /* 8 bit PC relative GOT entry */ | |
528 | #define R_68K_GOT32O 10 /* 32 bit GOT offset */ | |
529 | #define R_68K_GOT16O 11 /* 16 bit GOT offset */ | |
530 | #define R_68K_GOT8O 12 /* 8 bit GOT offset */ | |
531 | #define R_68K_PLT32 13 /* 32 bit PC relative PLT address */ | |
532 | #define R_68K_PLT16 14 /* 16 bit PC relative PLT address */ | |
533 | #define R_68K_PLT8 15 /* 8 bit PC relative PLT address */ | |
534 | #define R_68K_PLT32O 16 /* 32 bit PLT offset */ | |
535 | #define R_68K_PLT16O 17 /* 16 bit PLT offset */ | |
536 | #define R_68K_PLT8O 18 /* 8 bit PLT offset */ | |
537 | #define R_68K_COPY 19 /* Copy symbol at runtime */ | |
538 | #define R_68K_GLOB_DAT 20 /* Create GOT entry */ | |
539 | #define R_68K_JMP_SLOT 21 /* Create PLT entry */ | |
540 | #define R_68K_RELATIVE 22 /* Adjust by program base */ | |
541 | ||
28f540f4 RM |
542 | /* Intel 80386 specific definitions. */ |
543 | ||
544 | /* i386 relocs. */ | |
545 | ||
546 | #define R_386_NONE 0 /* No reloc */ | |
547 | #define R_386_32 1 /* Direct 32 bit */ | |
548 | #define R_386_PC32 2 /* PC relative 32 bit */ | |
549 | #define R_386_GOT32 3 /* 32 bit GOT entry */ | |
550 | #define R_386_PLT32 4 /* 32 bit PLT address */ | |
551 | #define R_386_COPY 5 /* Copy symbol at runtime */ | |
552 | #define R_386_GLOB_DAT 6 /* Create GOT entry */ | |
553 | #define R_386_JMP_SLOT 7 /* Create PLT entry */ | |
554 | #define R_386_RELATIVE 8 /* Adjust by program base */ | |
555 | #define R_386_GOTOFF 9 /* 32 bit offset to GOT */ | |
556 | #define R_386_GOTPC 10 /* 32 bit PC relative offset to GOT */ | |
557 | ||
558 | /* SUN SPARC specific definitions. */ | |
559 | ||
560 | /* SPARC relocs. */ | |
561 | ||
562 | #define R_SPARC_NONE 0 /* No reloc */ | |
563 | #define R_SPARC_8 1 /* Direct 8 bit */ | |
564 | #define R_SPARC_16 2 /* Direct 16 bit */ | |
565 | #define R_SPARC_32 3 /* Direct 32 bit */ | |
566 | #define R_SPARC_DISP8 4 /* PC relative 8 bit */ | |
567 | #define R_SPARC_DISP16 5 /* PC relative 16 bit */ | |
568 | #define R_SPARC_DISP32 6 /* PC relative 32 bit */ | |
569 | #define R_SPARC_WDISP30 7 /* PC relative 30 bit shifted */ | |
570 | #define R_SPARC_WDISP22 8 /* PC relative 22 bit shifted */ | |
571 | #define R_SPARC_HI22 9 /* High 22 bit */ | |
572 | #define R_SPARC_22 10 /* Direct 22 bit */ | |
573 | #define R_SPARC_13 11 /* Direct 13 bit */ | |
574 | #define R_SPARC_LO10 12 /* Truncated 10 bit */ | |
575 | #define R_SPARC_GOT10 13 /* Truncated 10 bit GOT entry */ | |
576 | #define R_SPARC_GOT13 14 /* 13 bit GOT entry */ | |
577 | #define R_SPARC_GOT22 15 /* 22 bit GOT entry shifted */ | |
578 | #define R_SPARC_PC10 16 /* PC relative 10 bit truncated */ | |
579 | #define R_SPARC_PC22 17 /* PC relative 22 bit shifted */ | |
580 | #define R_SPARC_WPLT30 18 /* 30 bit PC relative PLT address */ | |
581 | #define R_SPARC_COPY 19 /* Copy symbol at runtime */ | |
582 | #define R_SPARC_GLOB_DAT 20 /* Create GOT entry */ | |
583 | #define R_SPARC_JMP_SLOT 21 /* Create PLT entry */ | |
584 | #define R_SPARC_RELATIVE 22 /* Adjust by program base */ | |
585 | #define R_SPARC_UA32 23 /* Direct 32 bit unaligned */ | |
586 | ||
587 | /* MIPS R3000 specific definitions. */ | |
588 | ||
589 | /* Legal values for e_flags field of Elf32_Ehdr. */ | |
590 | ||
591 | #define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */ | |
592 | #define EF_MIPS_PIC 2 /* Contains PIC code */ | |
593 | #define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */ | |
594 | #define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */ | |
595 | ||
0200214b RM |
596 | /* Legal values for MIPS architecture level. */ |
597 | ||
598 | #define E_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ | |
599 | #define E_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ | |
600 | #define E_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ | |
601 | ||
28f540f4 RM |
602 | /* Special section indices. */ |
603 | ||
604 | #define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */ | |
76060ec0 RM |
605 | #define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */ |
606 | #define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */ | |
28f540f4 RM |
607 | #define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */ |
608 | #define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */ | |
609 | ||
610 | /* Legal values for sh_type field of Elf32_Shdr. */ | |
611 | ||
612 | #define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */ | |
613 | #define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */ | |
614 | #define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */ | |
615 | #define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */ | |
616 | #define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information */ | |
617 | #define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */ | |
0200214b RM |
618 | #define SHT_MIPS_OPTIONS 0x7000000d /* Miscellaneous options. */ |
619 | #define SHT_MIPS_DWARF 0x7000001e /* DWARF debugging information. */ | |
620 | #define SHT_MIPS_EVENTS 0x70000021 /* Event section. */ | |
28f540f4 RM |
621 | |
622 | /* Legal values for sh_flags field of Elf32_Shdr. */ | |
623 | ||
624 | #define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */ | |
625 | ||
626 | /* Entries found in sections of type SHT_MIPS_GPTAB. */ | |
627 | ||
628 | typedef union | |
629 | { | |
630 | struct | |
631 | { | |
632 | Elf32_Word gt_current_g_value; /* -G value used for compilation */ | |
633 | Elf32_Word gt_unused; /* Not used */ | |
634 | } gt_header; /* First entry in section */ | |
635 | struct | |
636 | { | |
637 | Elf32_Word gt_g_value; /* If this value were used for -G */ | |
638 | Elf32_Word gt_bytes; /* This many bytes would be used */ | |
639 | } gt_entry; /* Subsequent entries in section */ | |
640 | } Elf32_gptab; | |
641 | ||
642 | /* Entry found in sections of type SHT_MIPS_REGINFO. */ | |
643 | ||
644 | typedef struct | |
645 | { | |
646 | Elf32_Word ri_gprmask; /* General registers used */ | |
647 | Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */ | |
648 | Elf32_Sword ri_gp_value; /* $gp register value */ | |
649 | } Elf32_RegInfo; | |
650 | ||
651 | /* MIPS relocs. */ | |
652 | ||
653 | #define R_MIPS_NONE 0 /* No reloc */ | |
654 | #define R_MIPS_16 1 /* Direct 16 bit */ | |
655 | #define R_MIPS_32 2 /* Direct 32 bit */ | |
656 | #define R_MIPS_REL32 3 /* PC relative 32 bit */ | |
657 | #define R_MIPS_26 4 /* Direct 26 bit shifted */ | |
658 | #define R_MIPS_HI16 5 /* High 16 bit */ | |
659 | #define R_MIPS_LO16 6 /* Low 16 bit */ | |
660 | #define R_MIPS_GPREL16 7 /* GP relative 16 bit */ | |
661 | #define R_MIPS_LITERAL 8 /* 16 bit literal entry */ | |
662 | #define R_MIPS_GOT16 9 /* 16 bit GOT entry */ | |
663 | #define R_MIPS_PC16 10 /* PC relative 16 bit */ | |
664 | #define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */ | |
665 | #define R_MIPS_GPREL32 12 /* GP relative 32 bit */ | |
666 | ||
667 | /* Legal values for p_type field of Elf32_Phdr. */ | |
668 | ||
273d56ce | 669 | #define PT_MIPS_REGINFO 0x70000000 /* Register usage information */ |
28f540f4 RM |
670 | |
671 | /* Legal values for d_tag field of Elf32_Dyn. */ | |
672 | ||
673 | #define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime linker interface version */ | |
674 | #define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */ | |
675 | #define DT_MIPS_ICHECKSUM 0x70000003 /* Checksum */ | |
676 | #define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */ | |
677 | #define DT_MIPS_FLAGS 0x70000005 /* Flags */ | |
678 | #define DT_MIPS_BASE_ADDRESS 0x70000006 /* Base address */ | |
679 | #define DT_MIPS_CONFLICT 0x70000008 /* Address of CONFLICT section */ | |
680 | #define DT_MIPS_LIBLIST 0x70000009 /* Address of LIBLIST section */ | |
681 | #define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local GOT entries */ | |
682 | #define DT_MIPS_CONFLICTNO 0x7000000b /* Number of CONFLICT entries */ | |
683 | #define DT_MIPS_LIBLISTNO 0x70000010 /* Number of LIBLIST entries */ | |
684 | #define DT_MIPS_SYMTABNO 0x70000011 /* Number of DYNSYM entries */ | |
685 | #define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */ | |
686 | #define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in DYNSYM */ | |
687 | #define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */ | |
0200214b RM |
688 | #define DT_MIPS_RLD_MAP 0x70000016 /* Address of run time loader map. */ |
689 | #define DT_MIPS_NUM 0x17 | |
28f540f4 RM |
690 | |
691 | /* Legal values for DT_MIPS_FLAG Elf32_Dyn entry. */ | |
692 | ||
693 | #define RHF_NONE 0 /* No flags */ | |
694 | #define RHF_QUICKSTART (1 << 0) /* Use quickstart */ | |
695 | #define RHF_NOTPOT (1 << 1) /* Hash size not power of 2 */ | |
696 | #define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) /* Ignore LD_LIBRARY_PATH */ | |
697 | ||
698 | /* Entries found in sections of type SHT_MIPS_LIBLIST. */ | |
699 | ||
700 | typedef struct | |
701 | { | |
702 | Elf32_Word l_name; /* Name (string table index) */ | |
703 | Elf32_Word l_time_stamp; /* Timestamp */ | |
704 | Elf32_Word l_checksum; /* Checksum */ | |
705 | Elf32_Word l_version; /* Interface version */ | |
706 | Elf32_Word l_flags; /* Flags */ | |
707 | } Elf32_Lib; | |
708 | ||
709 | /* Legal values for l_flags. */ | |
710 | ||
711 | #define LL_EXACT_MATCH (1 << 0) /* Require exact match */ | |
712 | #define LL_IGNORE_INT_VER (1 << 1) /* Ignore interface version */ | |
713 | ||
714 | /* Entries found in sections of type SHT_MIPS_CONFLICT. */ | |
715 | ||
716 | typedef Elf32_Addr Elf32_Conflict; | |
717 | ||
718 | ||
0200214b RM |
719 | /* HPPA specific definitions. */ |
720 | ||
721 | /* Legal values for sh_type field of Elf32_Shdr. */ | |
722 | ||
723 | #define SHT_PARISC_GOT 0x70000000 /* GOT for external data. */ | |
724 | #define SHT_PARISC_ARCH 0x70000001 /* Architecture extensions. */ | |
725 | #define SHT_PARISC_GLOBAL 0x70000002 /* Definition of $global$. */ | |
726 | #define SHT_PARISC_MILLI 0x70000003 /* Millicode routines. */ | |
727 | #define SHT_PARISC_UNWIND 0x70000004 /* Unwind information. */ | |
728 | #define SHT_PARISC_PLT 0x70000005 /* Procedure linkage table. */ | |
729 | #define SHT_PARISC_SDATA 0x70000006 /* Short initialized data. */ | |
730 | #define SHT_PARISC_SBSS 0x70000007 /* Short uninitialized data. */ | |
731 | #define SHT_PARISC_SYMEXTN 0x70000008 /* Argument/relocation info. */ | |
732 | #define SHT_PARISC_STUBS 0x70000009 /* Linker stubs. */ | |
733 | ||
734 | /* Legal values for sh_flags field of Elf32_Shdr. */ | |
735 | ||
736 | #define SHF_PARISC_SHORT 0x20000000 /* Section with short addressing. */ | |
737 | ||
738 | /* Legal values for ST_TYPE subfield of st_info (symbol type). */ | |
739 | ||
740 | #define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */ | |
741 | ||
742 | ||
266180eb RM |
743 | /* Alpha specific declarations. */ |
744 | ||
745 | /* Alpha relocs. */ | |
746 | ||
747 | #define R_ALPHA_NONE 0 /* No reloc */ | |
748 | #define R_ALPHA_REFLONG 1 /* Direct 32 bit */ | |
749 | #define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ | |
750 | #define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ | |
751 | #define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ | |
752 | #define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ | |
753 | #define R_ALPHA_GPDISP 6 /* Add displacement to GP */ | |
754 | #define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ | |
755 | #define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ | |
756 | #define R_ALPHA_SREL16 9 /* PC relative 16 bit */ | |
757 | #define R_ALPHA_SREL32 10 /* PC relative 32 bit */ | |
758 | #define R_ALPHA_SREL64 11 /* PC relative 64 bit */ | |
759 | #define R_ALPHA_OP_PUSH 12 /* OP stack push */ | |
760 | #define R_ALPHA_OP_STORE 13 /* OP stack pop and store */ | |
761 | #define R_ALPHA_OP_PSUB 14 /* OP stack subtract */ | |
762 | #define R_ALPHA_OP_PRSHIFT 15 /* OP stack right shift */ | |
763 | #define R_ALPHA_GPVALUE 16 | |
764 | #define R_ALPHA_GPRELHIGH 17 | |
765 | #define R_ALPHA_GPRELLOW 18 | |
766 | #define R_ALPHA_IMMED_GP_16 19 | |
767 | #define R_ALPHA_IMMED_GP_HI32 20 | |
768 | #define R_ALPHA_IMMED_SCN_HI32 21 | |
769 | #define R_ALPHA_IMMED_BR_HI32 22 | |
770 | #define R_ALPHA_IMMED_LO32 23 | |
771 | #define R_ALPHA_COPY 24 /* Copy symbol at runtime */ | |
772 | #define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ | |
773 | #define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ | |
774 | #define R_ALPHA_RELATIVE 27 /* Adjust by program base */ | |
775 | ||
776 | ||
28f540f4 | 777 | #endif /* elf.h */ |