diff options
Diffstat (limited to 'include/linux/elf.h')
-rw-r--r-- | include/linux/elf.h | 449 |
1 files changed, 449 insertions, 0 deletions
diff --git a/include/linux/elf.h b/include/linux/elf.h new file mode 100644 index 000000000000..f5b3ba5a317d --- /dev/null +++ b/include/linux/elf.h | |||
@@ -0,0 +1,449 @@ | |||
1 | #ifndef _LINUX_ELF_H | ||
2 | #define _LINUX_ELF_H | ||
3 | |||
4 | #include <linux/types.h> | ||
5 | #include <asm/elf.h> | ||
6 | |||
7 | #ifndef elf_read_implies_exec | ||
8 | /* Executables for which elf_read_implies_exec() returns TRUE will | ||
9 | have the READ_IMPLIES_EXEC personality flag set automatically. | ||
10 | Override in asm/elf.h as needed. */ | ||
11 | # define elf_read_implies_exec(ex, have_pt_gnu_stack) 0 | ||
12 | #endif | ||
13 | |||
14 | /* 32-bit ELF base types. */ | ||
15 | typedef __u32 Elf32_Addr; | ||
16 | typedef __u16 Elf32_Half; | ||
17 | typedef __u32 Elf32_Off; | ||
18 | typedef __s32 Elf32_Sword; | ||
19 | typedef __u32 Elf32_Word; | ||
20 | |||
21 | /* 64-bit ELF base types. */ | ||
22 | typedef __u64 Elf64_Addr; | ||
23 | typedef __u16 Elf64_Half; | ||
24 | typedef __s16 Elf64_SHalf; | ||
25 | typedef __u64 Elf64_Off; | ||
26 | typedef __s32 Elf64_Sword; | ||
27 | typedef __u32 Elf64_Word; | ||
28 | typedef __u64 Elf64_Xword; | ||
29 | typedef __s64 Elf64_Sxword; | ||
30 | |||
31 | /* These constants are for the segment types stored in the image headers */ | ||
32 | #define PT_NULL 0 | ||
33 | #define PT_LOAD 1 | ||
34 | #define PT_DYNAMIC 2 | ||
35 | #define PT_INTERP 3 | ||
36 | #define PT_NOTE 4 | ||
37 | #define PT_SHLIB 5 | ||
38 | #define PT_PHDR 6 | ||
39 | #define PT_TLS 7 /* Thread local storage segment */ | ||
40 | #define PT_LOOS 0x60000000 /* OS-specific */ | ||
41 | #define PT_HIOS 0x6fffffff /* OS-specific */ | ||
42 | #define PT_LOPROC 0x70000000 | ||
43 | #define PT_HIPROC 0x7fffffff | ||
44 | #define PT_GNU_EH_FRAME 0x6474e550 | ||
45 | |||
46 | #define PT_GNU_STACK (PT_LOOS + 0x474e551) | ||
47 | |||
48 | /* These constants define the different elf file types */ | ||
49 | #define ET_NONE 0 | ||
50 | #define ET_REL 1 | ||
51 | #define ET_EXEC 2 | ||
52 | #define ET_DYN 3 | ||
53 | #define ET_CORE 4 | ||
54 | #define ET_LOPROC 0xff00 | ||
55 | #define ET_HIPROC 0xffff | ||
56 | |||
57 | /* These constants define the various ELF target machines */ | ||
58 | #define EM_NONE 0 | ||
59 | #define EM_M32 1 | ||
60 | #define EM_SPARC 2 | ||
61 | #define EM_386 3 | ||
62 | #define EM_68K 4 | ||
63 | #define EM_88K 5 | ||
64 | #define EM_486 6 /* Perhaps disused */ | ||
65 | #define EM_860 7 | ||
66 | |||
67 | #define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */ | ||
68 | |||
69 | #define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */ | ||
70 | |||
71 | #define EM_PARISC 15 /* HPPA */ | ||
72 | |||
73 | #define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ | ||
74 | |||
75 | #define EM_PPC 20 /* PowerPC */ | ||
76 | #define EM_PPC64 21 /* PowerPC64 */ | ||
77 | |||
78 | #define EM_SH 42 /* SuperH */ | ||
79 | |||
80 | #define EM_SPARCV9 43 /* SPARC v9 64-bit */ | ||
81 | |||
82 | #define EM_IA_64 50 /* HP/Intel IA-64 */ | ||
83 | |||
84 | #define EM_X86_64 62 /* AMD x86-64 */ | ||
85 | |||
86 | #define EM_S390 22 /* IBM S/390 */ | ||
87 | |||
88 | #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ | ||
89 | |||
90 | #define EM_V850 87 /* NEC v850 */ | ||
91 | |||
92 | #define EM_M32R 88 /* Renesas M32R */ | ||
93 | |||
94 | #define EM_H8_300 46 /* Renesas H8/300,300H,H8S */ | ||
95 | |||
96 | /* | ||
97 | * This is an interim value that we will use until the committee comes | ||
98 | * up with a final number. | ||
99 | */ | ||
100 | #define EM_ALPHA 0x9026 | ||
101 | |||
102 | /* Bogus old v850 magic number, used by old tools. */ | ||
103 | #define EM_CYGNUS_V850 0x9080 | ||
104 | |||
105 | /* Bogus old m32r magic number, used by old tools. */ | ||
106 | #define EM_CYGNUS_M32R 0x9041 | ||
107 | |||
108 | /* | ||
109 | * This is the old interim value for S/390 architecture | ||
110 | */ | ||
111 | #define EM_S390_OLD 0xA390 | ||
112 | |||
113 | #define EM_FRV 0x5441 /* Fujitsu FR-V */ | ||
114 | |||
115 | /* This is the info that is needed to parse the dynamic section of the file */ | ||
116 | #define DT_NULL 0 | ||
117 | #define DT_NEEDED 1 | ||
118 | #define DT_PLTRELSZ 2 | ||
119 | #define DT_PLTGOT 3 | ||
120 | #define DT_HASH 4 | ||
121 | #define DT_STRTAB 5 | ||
122 | #define DT_SYMTAB 6 | ||
123 | #define DT_RELA 7 | ||
124 | #define DT_RELASZ 8 | ||
125 | #define DT_RELAENT 9 | ||
126 | #define DT_STRSZ 10 | ||
127 | #define DT_SYMENT 11 | ||
128 | #define DT_INIT 12 | ||
129 | #define DT_FINI 13 | ||
130 | #define DT_SONAME 14 | ||
131 | #define DT_RPATH 15 | ||
132 | #define DT_SYMBOLIC 16 | ||
133 | #define DT_REL 17 | ||
134 | #define DT_RELSZ 18 | ||
135 | #define DT_RELENT 19 | ||
136 | #define DT_PLTREL 20 | ||
137 | #define DT_DEBUG 21 | ||
138 | #define DT_TEXTREL 22 | ||
139 | #define DT_JMPREL 23 | ||
140 | #define DT_LOPROC 0x70000000 | ||
141 | #define DT_HIPROC 0x7fffffff | ||
142 | |||
143 | /* This info is needed when parsing the symbol table */ | ||
144 | #define STB_LOCAL 0 | ||
145 | #define STB_GLOBAL 1 | ||
146 | #define STB_WEAK 2 | ||
147 | |||
148 | #define STT_NOTYPE 0 | ||
149 | #define STT_OBJECT 1 | ||
150 | #define STT_FUNC 2 | ||
151 | #define STT_SECTION 3 | ||
152 | #define STT_FILE 4 | ||
153 | |||
154 | #define ELF_ST_BIND(x) ((x) >> 4) | ||
155 | #define ELF_ST_TYPE(x) (((unsigned int) x) & 0xf) | ||
156 | #define ELF32_ST_BIND(x) ELF_ST_BIND(x) | ||
157 | #define ELF32_ST_TYPE(x) ELF_ST_TYPE(x) | ||
158 | #define ELF64_ST_BIND(x) ELF_ST_BIND(x) | ||
159 | #define ELF64_ST_TYPE(x) ELF_ST_TYPE(x) | ||
160 | |||
161 | /* Symbolic values for the entries in the auxiliary table | ||
162 | put on the initial stack */ | ||
163 | #define AT_NULL 0 /* end of vector */ | ||
164 | #define AT_IGNORE 1 /* entry should be ignored */ | ||
165 | #define AT_EXECFD 2 /* file descriptor of program */ | ||
166 | #define AT_PHDR 3 /* program headers for program */ | ||
167 | #define AT_PHENT 4 /* size of program header entry */ | ||
168 | #define AT_PHNUM 5 /* number of program headers */ | ||
169 | #define AT_PAGESZ 6 /* system page size */ | ||
170 | #define AT_BASE 7 /* base address of interpreter */ | ||
171 | #define AT_FLAGS 8 /* flags */ | ||
172 | #define AT_ENTRY 9 /* entry point of program */ | ||
173 | #define AT_NOTELF 10 /* program is not ELF */ | ||
174 | #define AT_UID 11 /* real uid */ | ||
175 | #define AT_EUID 12 /* effective uid */ | ||
176 | #define AT_GID 13 /* real gid */ | ||
177 | #define AT_EGID 14 /* effective gid */ | ||
178 | #define AT_PLATFORM 15 /* string identifying CPU for optimizations */ | ||
179 | #define AT_HWCAP 16 /* arch dependent hints at CPU capabilities */ | ||
180 | #define AT_CLKTCK 17 /* frequency at which times() increments */ | ||
181 | |||
182 | #define AT_SECURE 23 /* secure mode boolean */ | ||
183 | |||
184 | typedef struct dynamic{ | ||
185 | Elf32_Sword d_tag; | ||
186 | union{ | ||
187 | Elf32_Sword d_val; | ||
188 | Elf32_Addr d_ptr; | ||
189 | } d_un; | ||
190 | } Elf32_Dyn; | ||
191 | |||
192 | typedef struct { | ||
193 | Elf64_Sxword d_tag; /* entry tag value */ | ||
194 | union { | ||
195 | Elf64_Xword d_val; | ||
196 | Elf64_Addr d_ptr; | ||
197 | } d_un; | ||
198 | } Elf64_Dyn; | ||
199 | |||
200 | /* The following are used with relocations */ | ||
201 | #define ELF32_R_SYM(x) ((x) >> 8) | ||
202 | #define ELF32_R_TYPE(x) ((x) & 0xff) | ||
203 | |||
204 | #define ELF64_R_SYM(i) ((i) >> 32) | ||
205 | #define ELF64_R_TYPE(i) ((i) & 0xffffffff) | ||
206 | |||
207 | typedef struct elf32_rel { | ||
208 | Elf32_Addr r_offset; | ||
209 | Elf32_Word r_info; | ||
210 | } Elf32_Rel; | ||
211 | |||
212 | typedef struct elf64_rel { | ||
213 | Elf64_Addr r_offset; /* Location at which to apply the action */ | ||
214 | Elf64_Xword r_info; /* index and type of relocation */ | ||
215 | } Elf64_Rel; | ||
216 | |||
217 | typedef struct elf32_rela{ | ||
218 | Elf32_Addr r_offset; | ||
219 | Elf32_Word r_info; | ||
220 | Elf32_Sword r_addend; | ||
221 | } Elf32_Rela; | ||
222 | |||
223 | typedef struct elf64_rela { | ||
224 | Elf64_Addr r_offset; /* Location at which to apply the action */ | ||
225 | Elf64_Xword r_info; /* index and type of relocation */ | ||
226 | Elf64_Sxword r_addend; /* Constant addend used to compute value */ | ||
227 | } Elf64_Rela; | ||
228 | |||
229 | typedef struct elf32_sym{ | ||
230 | Elf32_Word st_name; | ||
231 | Elf32_Addr st_value; | ||
232 | Elf32_Word st_size; | ||
233 | unsigned char st_info; | ||
234 | unsigned char st_other; | ||
235 | Elf32_Half st_shndx; | ||
236 | } Elf32_Sym; | ||
237 | |||
238 | typedef struct elf64_sym { | ||
239 | Elf64_Word st_name; /* Symbol name, index in string tbl */ | ||
240 | unsigned char st_info; /* Type and binding attributes */ | ||
241 | unsigned char st_other; /* No defined meaning, 0 */ | ||
242 | Elf64_Half st_shndx; /* Associated section index */ | ||
243 | Elf64_Addr st_value; /* Value of the symbol */ | ||
244 | Elf64_Xword st_size; /* Associated symbol size */ | ||
245 | } Elf64_Sym; | ||
246 | |||
247 | |||
248 | #define EI_NIDENT 16 | ||
249 | |||
250 | typedef struct elf32_hdr{ | ||
251 | unsigned char e_ident[EI_NIDENT]; | ||
252 | Elf32_Half e_type; | ||
253 | Elf32_Half e_machine; | ||
254 | Elf32_Word e_version; | ||
255 | Elf32_Addr e_entry; /* Entry point */ | ||
256 | Elf32_Off e_phoff; | ||
257 | Elf32_Off e_shoff; | ||
258 | Elf32_Word e_flags; | ||
259 | Elf32_Half e_ehsize; | ||
260 | Elf32_Half e_phentsize; | ||
261 | Elf32_Half e_phnum; | ||
262 | Elf32_Half e_shentsize; | ||
263 | Elf32_Half e_shnum; | ||
264 | Elf32_Half e_shstrndx; | ||
265 | } Elf32_Ehdr; | ||
266 | |||
267 | typedef struct elf64_hdr { | ||
268 | unsigned char e_ident[16]; /* ELF "magic number" */ | ||
269 | Elf64_Half e_type; | ||
270 | Elf64_Half e_machine; | ||
271 | Elf64_Word e_version; | ||
272 | Elf64_Addr e_entry; /* Entry point virtual address */ | ||
273 | Elf64_Off e_phoff; /* Program header table file offset */ | ||
274 | Elf64_Off e_shoff; /* Section header table file offset */ | ||
275 | Elf64_Word e_flags; | ||
276 | Elf64_Half e_ehsize; | ||
277 | Elf64_Half e_phentsize; | ||
278 | Elf64_Half e_phnum; | ||
279 | Elf64_Half e_shentsize; | ||
280 | Elf64_Half e_shnum; | ||
281 | Elf64_Half e_shstrndx; | ||
282 | } Elf64_Ehdr; | ||
283 | |||
284 | /* These constants define the permissions on sections in the program | ||
285 | header, p_flags. */ | ||
286 | #define PF_R 0x4 | ||
287 | #define PF_W 0x2 | ||
288 | #define PF_X 0x1 | ||
289 | |||
290 | typedef struct elf32_phdr{ | ||
291 | Elf32_Word p_type; | ||
292 | Elf32_Off p_offset; | ||
293 | Elf32_Addr p_vaddr; | ||
294 | Elf32_Addr p_paddr; | ||
295 | Elf32_Word p_filesz; | ||
296 | Elf32_Word p_memsz; | ||
297 | Elf32_Word p_flags; | ||
298 | Elf32_Word p_align; | ||
299 | } Elf32_Phdr; | ||
300 | |||
301 | typedef struct elf64_phdr { | ||
302 | Elf64_Word p_type; | ||
303 | Elf64_Word p_flags; | ||
304 | Elf64_Off p_offset; /* Segment file offset */ | ||
305 | Elf64_Addr p_vaddr; /* Segment virtual address */ | ||
306 | Elf64_Addr p_paddr; /* Segment physical address */ | ||
307 | Elf64_Xword p_filesz; /* Segment size in file */ | ||
308 | Elf64_Xword p_memsz; /* Segment size in memory */ | ||
309 | Elf64_Xword p_align; /* Segment alignment, file & memory */ | ||
310 | } Elf64_Phdr; | ||
311 | |||
312 | /* sh_type */ | ||
313 | #define SHT_NULL 0 | ||
314 | #define SHT_PROGBITS 1 | ||
315 | #define SHT_SYMTAB 2 | ||
316 | #define SHT_STRTAB 3 | ||
317 | #define SHT_RELA 4 | ||
318 | #define SHT_HASH 5 | ||
319 | #define SHT_DYNAMIC 6 | ||
320 | #define SHT_NOTE 7 | ||
321 | #define SHT_NOBITS 8 | ||
322 | #define SHT_REL 9 | ||
323 | #define SHT_SHLIB 10 | ||
324 | #define SHT_DYNSYM 11 | ||
325 | #define SHT_NUM 12 | ||
326 | #define SHT_LOPROC 0x70000000 | ||
327 | #define SHT_HIPROC 0x7fffffff | ||
328 | #define SHT_LOUSER 0x80000000 | ||
329 | #define SHT_HIUSER 0xffffffff | ||
330 | |||
331 | /* sh_flags */ | ||
332 | #define SHF_WRITE 0x1 | ||
333 | #define SHF_ALLOC 0x2 | ||
334 | #define SHF_EXECINSTR 0x4 | ||
335 | #define SHF_MASKPROC 0xf0000000 | ||
336 | |||
337 | /* special section indexes */ | ||
338 | #define SHN_UNDEF 0 | ||
339 | #define SHN_LORESERVE 0xff00 | ||
340 | #define SHN_LOPROC 0xff00 | ||
341 | #define SHN_HIPROC 0xff1f | ||
342 | #define SHN_ABS 0xfff1 | ||
343 | #define SHN_COMMON 0xfff2 | ||
344 | #define SHN_HIRESERVE 0xffff | ||
345 | |||
346 | typedef struct { | ||
347 | Elf32_Word sh_name; | ||
348 | Elf32_Word sh_type; | ||
349 | Elf32_Word sh_flags; | ||
350 | Elf32_Addr sh_addr; | ||
351 | Elf32_Off sh_offset; | ||
352 | Elf32_Word sh_size; | ||
353 | Elf32_Word sh_link; | ||
354 | Elf32_Word sh_info; | ||
355 | Elf32_Word sh_addralign; | ||
356 | Elf32_Word sh_entsize; | ||
357 | } Elf32_Shdr; | ||
358 | |||
359 | typedef struct elf64_shdr { | ||
360 | Elf64_Word sh_name; /* Section name, index in string tbl */ | ||
361 | Elf64_Word sh_type; /* Type of section */ | ||
362 | Elf64_Xword sh_flags; /* Miscellaneous section attributes */ | ||
363 | Elf64_Addr sh_addr; /* Section virtual addr at execution */ | ||
364 | Elf64_Off sh_offset; /* Section file offset */ | ||
365 | Elf64_Xword sh_size; /* Size of section in bytes */ | ||
366 | Elf64_Word sh_link; /* Index of another section */ | ||
367 | Elf64_Word sh_info; /* Additional section information */ | ||
368 | Elf64_Xword sh_addralign; /* Section alignment */ | ||
369 | Elf64_Xword sh_entsize; /* Entry size if section holds table */ | ||
370 | } Elf64_Shdr; | ||
371 | |||
372 | #define EI_MAG0 0 /* e_ident[] indexes */ | ||
373 | #define EI_MAG1 1 | ||
374 | #define EI_MAG2 2 | ||
375 | #define EI_MAG3 3 | ||
376 | #define EI_CLASS 4 | ||
377 | #define EI_DATA 5 | ||
378 | #define EI_VERSION 6 | ||
379 | #define EI_OSABI 7 | ||
380 | #define EI_PAD 8 | ||
381 | |||
382 | #define ELFMAG0 0x7f /* EI_MAG */ | ||
383 | #define ELFMAG1 'E' | ||
384 | #define ELFMAG2 'L' | ||
385 | #define ELFMAG3 'F' | ||
386 | #define ELFMAG "\177ELF" | ||
387 | #define SELFMAG 4 | ||
388 | |||
389 | #define ELFCLASSNONE 0 /* EI_CLASS */ | ||
390 | #define ELFCLASS32 1 | ||
391 | #define ELFCLASS64 2 | ||
392 | #define ELFCLASSNUM 3 | ||
393 | |||
394 | #define ELFDATANONE 0 /* e_ident[EI_DATA] */ | ||
395 | #define ELFDATA2LSB 1 | ||
396 | #define ELFDATA2MSB 2 | ||
397 | |||
398 | #define EV_NONE 0 /* e_version, EI_VERSION */ | ||
399 | #define EV_CURRENT 1 | ||
400 | #define EV_NUM 2 | ||
401 | |||
402 | #define ELFOSABI_NONE 0 | ||
403 | #define ELFOSABI_LINUX 3 | ||
404 | |||
405 | #ifndef ELF_OSABI | ||
406 | #define ELF_OSABI ELFOSABI_NONE | ||
407 | #endif | ||
408 | |||
409 | /* Notes used in ET_CORE */ | ||
410 | #define NT_PRSTATUS 1 | ||
411 | #define NT_PRFPREG 2 | ||
412 | #define NT_PRPSINFO 3 | ||
413 | #define NT_TASKSTRUCT 4 | ||
414 | #define NT_AUXV 6 | ||
415 | #define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */ | ||
416 | |||
417 | |||
418 | /* Note header in a PT_NOTE section */ | ||
419 | typedef struct elf32_note { | ||
420 | Elf32_Word n_namesz; /* Name size */ | ||
421 | Elf32_Word n_descsz; /* Content size */ | ||
422 | Elf32_Word n_type; /* Content type */ | ||
423 | } Elf32_Nhdr; | ||
424 | |||
425 | /* Note header in a PT_NOTE section */ | ||
426 | typedef struct elf64_note { | ||
427 | Elf64_Word n_namesz; /* Name size */ | ||
428 | Elf64_Word n_descsz; /* Content size */ | ||
429 | Elf64_Word n_type; /* Content type */ | ||
430 | } Elf64_Nhdr; | ||
431 | |||
432 | #if ELF_CLASS == ELFCLASS32 | ||
433 | |||
434 | extern Elf32_Dyn _DYNAMIC []; | ||
435 | #define elfhdr elf32_hdr | ||
436 | #define elf_phdr elf32_phdr | ||
437 | #define elf_note elf32_note | ||
438 | |||
439 | #else | ||
440 | |||
441 | extern Elf64_Dyn _DYNAMIC []; | ||
442 | #define elfhdr elf64_hdr | ||
443 | #define elf_phdr elf64_phdr | ||
444 | #define elf_note elf64_note | ||
445 | |||
446 | #endif | ||
447 | |||
448 | |||
449 | #endif /* _LINUX_ELF_H */ | ||