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don't discard SHT_((PRE)INIT|FINI)_ARRAY sections
[tinycc.git] / elf.h
blobebb9a8bd9616f3f034c134fe3150e6cbdf43e2e4
1 /* This file defines standard ELF types, structures, and macros.
2 Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ian Lance Taylor <ian@cygnus.com>.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
15
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 #ifndef _ELF_H
22 #define _ELF_H 1
23
24 #ifndef _WIN32
25 #include <inttypes.h>
26 #else
27 #ifndef __int8_t_defined
28 #define __int8_t_defined
29 typedef signed char int8_t;
30 typedef short int int16_t;
31 typedef int int32_t;
32 typedef long long int int64_t;
33 #endif
34
35 typedef unsigned char uint8_t;
36 typedef unsigned short int uint16_t;
37 typedef unsigned int uint32_t;
38 typedef unsigned long long int uint64_t;
39 #endif
40
41 /* Standard ELF types. */
42
43 /* Type for a 16-bit quantity. */
44 typedef uint16_t Elf32_Half;
45 typedef uint16_t Elf64_Half;
46
47 /* Types for signed and unsigned 32-bit quantities. */
48 typedef uint32_t Elf32_Word;
49 typedef int32_t Elf32_Sword;
50 typedef uint32_t Elf64_Word;
51 typedef int32_t Elf64_Sword;
52
53 /* Types for signed and unsigned 64-bit quantities. */
54 typedef uint64_t Elf32_Xword;
55 typedef int64_t Elf32_Sxword;
56 typedef uint64_t Elf64_Xword;
57 typedef int64_t Elf64_Sxword;
58
59 /* Type of addresses. */
60 typedef uint32_t Elf32_Addr;
61 typedef uint64_t Elf64_Addr;
62
63 /* Type of file offsets. */
64 typedef uint32_t Elf32_Off;
65 typedef uint64_t Elf64_Off;
66
67 /* Type for section indices, which are 16-bit quantities. */
68 typedef uint16_t Elf32_Section;
69 typedef uint16_t Elf64_Section;
70
71 /* Type of symbol indices. */
72 typedef uint32_t Elf32_Symndx;
73 typedef uint64_t Elf64_Symndx;
74
75
76 /* The ELF file header. This appears at the start of every ELF file. */
77
78 #define EI_NIDENT (16)
79
80 typedef struct
81 {
82 unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */
83 Elf32_Half e_type; /* Object file type */
84 Elf32_Half e_machine; /* Architecture */
85 Elf32_Word e_version; /* Object file version */
86 Elf32_Addr e_entry; /* Entry point virtual address */
87 Elf32_Off e_phoff; /* Program header table file offset */
88 Elf32_Off e_shoff; /* Section header table file offset */
89 Elf32_Word e_flags; /* Processor-specific flags */
90 Elf32_Half e_ehsize; /* ELF header size in bytes */
91 Elf32_Half e_phentsize; /* Program header table entry size */
92 Elf32_Half e_phnum; /* Program header table entry count */
93 Elf32_Half e_shentsize; /* Section header table entry size */
94 Elf32_Half e_shnum; /* Section header table entry count */
95 Elf32_Half e_shstrndx; /* Section header string table index */
96 } Elf32_Ehdr;
97
98 typedef struct
99 {
100 unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */
101 Elf64_Half e_type; /* Object file type */
102 Elf64_Half e_machine; /* Architecture */
103 Elf64_Word e_version; /* Object file version */
104 Elf64_Addr e_entry; /* Entry point virtual address */
105 Elf64_Off e_phoff; /* Program header table file offset */
106 Elf64_Off e_shoff; /* Section header table file offset */
107 Elf64_Word e_flags; /* Processor-specific flags */
108 Elf64_Half e_ehsize; /* ELF header size in bytes */
109 Elf64_Half e_phentsize; /* Program header table entry size */
110 Elf64_Half e_phnum; /* Program header table entry count */
111 Elf64_Half e_shentsize; /* Section header table entry size */
112 Elf64_Half e_shnum; /* Section header table entry count */
113 Elf64_Half e_shstrndx; /* Section header string table index */
114 } Elf64_Ehdr;
115
116 /* Fields in the e_ident array. The EI_* macros are indices into the
117 array. The macros under each EI_* macro are the values the byte
118 may have. */
119
120 #define EI_MAG0 0 /* File identification byte 0 index */
121 #define ELFMAG0 0x7f /* Magic number byte 0 */
122
123 #define EI_MAG1 1 /* File identification byte 1 index */
124 #define ELFMAG1 'E' /* Magic number byte 1 */
125
126 #define EI_MAG2 2 /* File identification byte 2 index */
127 #define ELFMAG2 'L' /* Magic number byte 2 */
128
129 #define EI_MAG3 3 /* File identification byte 3 index */
130 #define ELFMAG3 'F' /* Magic number byte 3 */
131
132 /* Conglomeration of the identification bytes, for easy testing as a word. */
133 #define ELFMAG "\177ELF"
134 #define SELFMAG 4
135
136 #define EI_CLASS 4 /* File class byte index */
137 #define ELFCLASSNONE 0 /* Invalid class */
138 #define ELFCLASS32 1 /* 32-bit objects */
139 #define ELFCLASS64 2 /* 64-bit objects */
140 #define ELFCLASSNUM 3
141
142 #define EI_DATA 5 /* Data encoding byte index */
143 #define ELFDATANONE 0 /* Invalid data encoding */
144 #define ELFDATA2LSB 1 /* 2's complement, little endian */
145 #define ELFDATA2MSB 2 /* 2's complement, big endian */
146 #define ELFDATANUM 3
147
148 #define EI_VERSION 6 /* File version byte index */
149 /* Value must be EV_CURRENT */
150
151 #define EI_OSABI 7 /* OS ABI identification */
152 #define ELFOSABI_SYSV 0 /* UNIX System V ABI */
153 #define ELFOSABI_HPUX 1 /* HP-UX */
154 #define ELFOSABI_FREEBSD 9 /* Free BSD */
155 #define ELFOSABI_ARM 97 /* ARM */
156 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
157
158 #define EI_ABIVERSION 8 /* ABI version */
159
160 #define EI_PAD 9 /* Byte index of padding bytes */
161
162 /* Legal values for e_type (object file type). */
163
164 #define ET_NONE 0 /* No file type */
165 #define ET_REL 1 /* Relocatable file */
166 #define ET_EXEC 2 /* Executable file */
167 #define ET_DYN 3 /* Shared object file */
168 #define ET_CORE 4 /* Core file */
169 #define ET_NUM 5 /* Number of defined types */
170 #define ET_LOPROC 0xff00 /* Processor-specific */
171 #define ET_HIPROC 0xffff /* Processor-specific */
172
173 /* Legal values for e_machine (architecture). */
174
175 #define EM_NONE 0 /* No machine */
176 #define EM_M32 1 /* AT&T WE 32100 */
177 #define EM_SPARC 2 /* SUN SPARC */
178 #define EM_386 3 /* Intel 80386 */
179 #define EM_68K 4 /* Motorola m68k family */
180 #define EM_88K 5 /* Motorola m88k family */
181 #define EM_486 6 /* Intel 80486 */
182 #define EM_860 7 /* Intel 80860 */
183 #define EM_MIPS 8 /* MIPS R3000 big-endian */
184 #define EM_S370 9 /* Amdahl */
185 #define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */
186 #define EM_RS6000 11 /* RS6000 */
187
188 #define EM_PARISC 15 /* HPPA */
189 #define EM_nCUBE 16 /* nCUBE */
190 #define EM_VPP500 17 /* Fujitsu VPP500 */
191 #define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
192 #define EM_960 19 /* Intel 80960 */
193 #define EM_PPC 20 /* PowerPC */
194
195 #define EM_V800 36 /* NEC V800 series */
196 #define EM_FR20 37 /* Fujitsu FR20 */
197 #define EM_RH32 38 /* TRW RH32 */
198 #define EM_RCE 39 /* Motorola RCE */
199 #define EM_ARM 40 /* ARM */
200 #define EM_FAKE_ALPHA 41 /* Digital Alpha */
201 #define EM_SH 42 /* Hitachi SH */
202 #define EM_SPARCV9 43 /* SPARC v9 64-bit */
203 #define EM_TRICORE 44 /* Siemens Tricore */
204 #define EM_ARC 45 /* Argonaut RISC Core */
205 #define EM_H8_300 46 /* Hitachi H8/300 */
206 #define EM_H8_300H 47 /* Hitachi H8/300H */
207 #define EM_H8S 48 /* Hitachi H8S */
208 #define EM_H8_500 49 /* Hitachi H8/500 */
209 #define EM_IA_64 50 /* Intel Merced */
210 #define EM_MIPS_X 51 /* Stanford MIPS-X */
211 #define EM_COLDFIRE 52 /* Motorola Coldfire */
212 #define EM_68HC12 53 /* Motorola M68HC12 */
213 #define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/
214 #define EM_PCP 55 /* Siemens PCP */
215 #define EM_NCPU 56 /* Sony nCPU embeeded RISC */
216 #define EM_NDR1 57 /* Denso NDR1 microprocessor */
217 #define EM_STARCORE 58 /* Motorola Start*Core processor */
218 #define EM_ME16 59 /* Toyota ME16 processor */
219 #define EM_ST100 60 /* STMicroelectronic ST100 processor */
220 #define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/
221 #define EM_X86_64 62 /* AMD x86-64 architecture */
222 #define EM_PDSP 63 /* Sony DSP Processor */
223 #define EM_FX66 66 /* Siemens FX66 microcontroller */
224 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */
225 #define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */
226 #define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */
227 #define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */
228 #define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */
229 #define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */
230 #define EM_SVX 73 /* Silicon Graphics SVx */
231 #define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */
232 #define EM_VAX 75 /* Digital VAX */
233 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */
234 #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */
235 #define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */
236 #define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */
237 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */
238 #define EM_HUANY 81 /* Harvard University machine-independent object files */
239 #define EM_PRISM 82 /* SiTera Prism */
240 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
241 #define EM_FR30 84 /* Fujitsu FR30 */
242 #define EM_D10V 85 /* Mitsubishi D10V */
243 #define EM_D30V 86 /* Mitsubishi D30V */
244 #define EM_V850 87 /* NEC v850 */
245 #define EM_M32R 88 /* Mitsubishi M32R */
246 #define EM_MN10300 89 /* Matsushita MN10300 */
247 #define EM_MN10200 90 /* Matsushita MN10200 */
248 #define EM_PJ 91 /* picoJava */
249 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
250 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */
251 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */
252 #define EM_NUM 95
253
254 /* If it is necessary to assign new unofficial EM_* values, please
255 pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the
256 chances of collision with official or non-GNU unofficial values. */
257
258 #define EM_ALPHA 0x9026
259 #define EM_C60 0x9c60
260
261 /* Legal values for e_version (version). */
262
263 #define EV_NONE 0 /* Invalid ELF version */
264 #define EV_CURRENT 1 /* Current version */
265 #define EV_NUM 2
266
267 /* Section header. */
268
269 typedef struct
270 {
271 Elf32_Word sh_name; /* Section name (string tbl index) */
272 Elf32_Word sh_type; /* Section type */
273 Elf32_Word sh_flags; /* Section flags */
274 Elf32_Addr sh_addr; /* Section virtual addr at execution */
275 Elf32_Off sh_offset; /* Section file offset */
276 Elf32_Word sh_size; /* Section size in bytes */
277 Elf32_Word sh_link; /* Link to another section */
278 Elf32_Word sh_info; /* Additional section information */
279 Elf32_Word sh_addralign; /* Section alignment */
280 Elf32_Word sh_entsize; /* Entry size if section holds table */
281 } Elf32_Shdr;
282
283 typedef struct
284 {
285 Elf64_Word sh_name; /* Section name (string tbl index) */
286 Elf64_Word sh_type; /* Section type */
287 Elf64_Xword sh_flags; /* Section flags */
288 Elf64_Addr sh_addr; /* Section virtual addr at execution */
289 Elf64_Off sh_offset; /* Section file offset */
290 Elf64_Xword sh_size; /* Section size in bytes */
291 Elf64_Word sh_link; /* Link to another section */
292 Elf64_Word sh_info; /* Additional section information */
293 Elf64_Xword sh_addralign; /* Section alignment */
294 Elf64_Xword sh_entsize; /* Entry size if section holds table */
295 } Elf64_Shdr;
296
297 /* Special section indices. */
298
299 #define SHN_UNDEF 0 /* Undefined section */
300 #define SHN_LORESERVE 0xff00 /* Start of reserved indices */
301 #define SHN_LOPROC 0xff00 /* Start of processor-specific */
302 #define SHN_HIPROC 0xff1f /* End of processor-specific */
303 #define SHN_ABS 0xfff1 /* Associated symbol is absolute */
304 #define SHN_COMMON 0xfff2 /* Associated symbol is common */
305 #define SHN_HIRESERVE 0xffff /* End of reserved indices */
306
307 /* Legal values for sh_type (section type). */
308
309 #define SHT_NULL 0 /* Section header table entry unused */
310 #define SHT_PROGBITS 1 /* Program data */
311 #define SHT_SYMTAB 2 /* Symbol table */
312 #define SHT_STRTAB 3 /* String table */
313 #define SHT_RELA 4 /* Relocation entries with addends */
314 #define SHT_HASH 5 /* Symbol hash table */
315 #define SHT_DYNAMIC 6 /* Dynamic linking information */
316 #define SHT_NOTE 7 /* Notes */
317 #define SHT_NOBITS 8 /* Program space with no data (bss) */
318 #define SHT_REL 9 /* Relocation entries, no addends */
319 #define SHT_SHLIB 10 /* Reserved */
320 #define SHT_DYNSYM 11 /* Dynamic linker symbol table */
321 #define SHT_INIT_ARRAY 14 /* Array of constructors */
322 #define SHT_FINI_ARRAY 15 /* Array of destructors */
323 #define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */
324 #define SHT_GROUP 17 /* Section group */
325 #define SHT_SYMTAB_SHNDX 18 /* Extended section indices */
326 #define SHT_NUM 19 /* Number of defined types. */
327 #define SHT_LOOS 0x60000000 /* Start OS-specific */
328 #define SHT_LOSUNW 0x6ffffffb /* Sun-specific low bound. */
329 #define SHT_SUNW_COMDAT 0x6ffffffb
330 #define SHT_SUNW_syminfo 0x6ffffffc
331 #define SHT_GNU_verdef 0x6ffffffd /* Version definition section. */
332 #define SHT_GNU_verneed 0x6ffffffe /* Version needs section. */
333 #define SHT_GNU_versym 0x6fffffff /* Version symbol table. */
334 #define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */
335 #define SHT_HIOS 0x6fffffff /* End OS-specific type */
336 #define SHT_LOPROC 0x70000000 /* Start of processor-specific */
337 #define SHT_ARM_EXIDX 0x70000001 /* Exception Index table */
338 #define SHT_ARM_PREEMPTMAP 0x70000002 /* dynamic linking pre-emption map */
339 #define SHT_ARM_ATTRIBUTES 0x70000003 /* Object file compatibility attrs */
340 #define SHT_HIPROC 0x7fffffff /* End of processor-specific */
341 #define SHT_LOUSER 0x80000000 /* Start of application-specific */
342 #define SHT_HIUSER 0x8fffffff /* End of application-specific */
343
344 /* Legal values for sh_flags (section flags). */
345
346 #define SHF_WRITE (1 << 0) /* Writable */
347 #define SHF_ALLOC (1 << 1) /* Occupies memory during execution */
348 #define SHF_EXECINSTR (1 << 2) /* Executable */
349 #define SHF_MASKPROC 0xf0000000 /* Processor-specific */
350
351 /* Symbol table entry. */
352
353 typedef struct
354 {
355 Elf32_Word st_name; /* Symbol name (string tbl index) */
356 Elf32_Addr st_value; /* Symbol value */
357 Elf32_Word st_size; /* Symbol size */
358 unsigned char st_info; /* Symbol type and binding */
359 unsigned char st_other; /* No defined meaning, 0 */
360 Elf32_Section st_shndx; /* Section index */
361 } Elf32_Sym;
362
363 typedef struct
364 {
365 Elf64_Word st_name; /* Symbol name (string tbl index) */
366 unsigned char st_info; /* Symbol type and binding */
367 unsigned char st_other; /* No defined meaning, 0 */
368 Elf64_Section st_shndx; /* Section index */
369 Elf64_Addr st_value; /* Symbol value */
370 Elf64_Xword st_size; /* Symbol size */
371 } Elf64_Sym;
372
373 /* The syminfo section if available contains additional information about
374 every dynamic symbol. */
375
376 typedef struct
377 {
378 Elf32_Half si_boundto; /* Direct bindings, symbol bound to */
379 Elf32_Half si_flags; /* Per symbol flags */
380 } Elf32_Syminfo;
381
382 typedef struct
383 {
384 Elf64_Half si_boundto; /* Direct bindings, symbol bound to */
385 Elf64_Half si_flags; /* Per symbol flags */
386 } Elf64_Syminfo;
387
388 /* Possible values for si_boundto. */
389 #define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */
390 #define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */
391 #define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */
392
393 /* Possible bitmasks for si_flags. */
394 #define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */
395 #define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */
396 #define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */
397 #define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy
398 loaded */
399 /* Syminfo version values. */
400 #define SYMINFO_NONE 0
401 #define SYMINFO_CURRENT 1
402 #define SYMINFO_NUM 2
403
404
405 /* Special section index. */
406
407 #define SHN_UNDEF 0 /* No section, undefined symbol. */
408
409 /* How to extract and insert information held in the st_info field. */
410
411 #define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4)
412 #define ELF32_ST_TYPE(val) ((val) & 0xf)
413 #define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
414
415 /* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */
416 #define ELF64_ST_BIND(val) ELF32_ST_BIND (val)
417 #define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val)
418 #define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type))
419
420 /* Legal values for ST_BIND subfield of st_info (symbol binding). */
421
422 #define STB_LOCAL 0 /* Local symbol */
423 #define STB_GLOBAL 1 /* Global symbol */
424 #define STB_WEAK 2 /* Weak symbol */
425 #define STB_NUM 3 /* Number of defined types. */
426 #define STB_LOOS 10 /* Start of OS-specific */
427 #define STB_HIOS 12 /* End of OS-specific */
428 #define STB_LOPROC 13 /* Start of processor-specific */
429 #define STB_HIPROC 15 /* End of processor-specific */
430
431 /* Legal values for ST_TYPE subfield of st_info (symbol type). */
432
433 #define STT_NOTYPE 0 /* Symbol type is unspecified */
434 #define STT_OBJECT 1 /* Symbol is a data object */
435 #define STT_FUNC 2 /* Symbol is a code object */
436 #define STT_SECTION 3 /* Symbol associated with a section */
437 #define STT_FILE 4 /* Symbol's name is file name */
438 #define STT_NUM 5 /* Number of defined types. */
439 #define STT_LOOS 11 /* Start of OS-specific */
440 #define STT_HIOS 12 /* End of OS-specific */
441 #define STT_LOPROC 13 /* Start of processor-specific */
442 #define STT_HIPROC 15 /* End of processor-specific */
443
444
445 /* Symbol table indices are found in the hash buckets and chain table
446 of a symbol hash table section. This special index value indicates
447 the end of a chain, meaning no further symbols are found in that bucket. */
448
449 #define STN_UNDEF 0 /* End of a chain. */
450
451
452 /* How to extract and insert information held in the st_other field. */
453
454 #define ELF32_ST_VISIBILITY(o) ((o) & 0x03)
455
456 /* For ELF64 the definitions are the same. */
457 #define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY (o)
458
459 /* Symbol visibility specification encoded in the st_other field. */
460 #define STV_DEFAULT 0 /* Default symbol visibility rules */
461 #define STV_INTERNAL 1 /* Processor specific hidden class */
462 #define STV_HIDDEN 2 /* Sym unavailable in other modules */
463 #define STV_PROTECTED 3 /* Not preemptible, not exported */
464
465
466 /* Relocation table entry without addend (in section of type SHT_REL). */
467
468 typedef struct
469 {
470 Elf32_Addr r_offset; /* Address */
471 Elf32_Word r_info; /* Relocation type and symbol index */
472 } Elf32_Rel;
473
474 /* I have seen two different definitions of the Elf64_Rel and
475 Elf64_Rela structures, so we'll leave them out until Novell (or
476 whoever) gets their act together. */
477 /* The following, at least, is used on Sparc v9, MIPS, and Alpha. */
478
479 typedef struct
480 {
481 Elf64_Addr r_offset; /* Address */
482 Elf64_Xword r_info; /* Relocation type and symbol index */
483 } Elf64_Rel;
484
485 /* Relocation table entry with addend (in section of type SHT_RELA). */
486
487 typedef struct
488 {
489 Elf32_Addr r_offset; /* Address */
490 Elf32_Word r_info; /* Relocation type and symbol index */
491 Elf32_Sword r_addend; /* Addend */
492 } Elf32_Rela;
493
494 typedef struct
495 {
496 Elf64_Addr r_offset; /* Address */
497 Elf64_Xword r_info; /* Relocation type and symbol index */
498 Elf64_Sxword r_addend; /* Addend */
499 } Elf64_Rela;
500
501 /* How to extract and insert information held in the r_info field. */
502
503 #define ELF32_R_SYM(val) ((val) >> 8)
504 #define ELF32_R_TYPE(val) ((val) & 0xff)
505 #define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff))
506
507 #define ELF64_R_SYM(i) ((i) >> 32)
508 #define ELF64_R_TYPE(i) ((i) & 0xffffffff)
509 #define ELF64_R_INFO(sym,type) ((((Elf64_Xword)(sym)) << 32) + (type))
510
511 /* Program segment header. */
512
513 typedef struct
514 {
515 Elf32_Word p_type; /* Segment type */
516 Elf32_Off p_offset; /* Segment file offset */
517 Elf32_Addr p_vaddr; /* Segment virtual address */
518 Elf32_Addr p_paddr; /* Segment physical address */
519 Elf32_Word p_filesz; /* Segment size in file */
520 Elf32_Word p_memsz; /* Segment size in memory */
521 Elf32_Word p_flags; /* Segment flags */
522 Elf32_Word p_align; /* Segment alignment */
523 } Elf32_Phdr;
524
525 typedef struct
526 {
527 Elf64_Word p_type; /* Segment type */
528 Elf64_Word p_flags; /* Segment flags */
529 Elf64_Off p_offset; /* Segment file offset */
530 Elf64_Addr p_vaddr; /* Segment virtual address */
531 Elf64_Addr p_paddr; /* Segment physical address */
532 Elf64_Xword p_filesz; /* Segment size in file */
533 Elf64_Xword p_memsz; /* Segment size in memory */
534 Elf64_Xword p_align; /* Segment alignment */
535 } Elf64_Phdr;
536
537 /* Legal values for p_type (segment type). */
538
539 #define PT_NULL 0 /* Program header table entry unused */
540 #define PT_LOAD 1 /* Loadable program segment */
541 #define PT_DYNAMIC 2 /* Dynamic linking information */
542 #define PT_INTERP 3 /* Program interpreter */
543 #define PT_NOTE 4 /* Auxiliary information */
544 #define PT_SHLIB 5 /* Reserved */
545 #define PT_PHDR 6 /* Entry for header table itself */
546 #define PT_NUM 7 /* Number of defined types. */
547 #define PT_LOOS 0x60000000 /* Start of OS-specific */
548 #define PT_HIOS 0x6fffffff /* End of OS-specific */
549 #define PT_LOPROC 0x70000000 /* Start of processor-specific */
550 #define PT_HIPROC 0x7fffffff /* End of processor-specific */
551
552 /* Legal values for p_flags (segment flags). */
553
554 #define PF_X (1 << 0) /* Segment is executable */
555 #define PF_W (1 << 1) /* Segment is writable */
556 #define PF_R (1 << 2) /* Segment is readable */
557 #define PF_MASKPROC 0xf0000000 /* Processor-specific */
558
559 /* Legal values for note segment descriptor types for core files. */
560
561 #define NT_PRSTATUS 1 /* Contains copy of prstatus struct */
562 #define NT_FPREGSET 2 /* Contains copy of fpregset struct */
563 #define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */
564 #define NT_PRXREG 4 /* Contains copy of prxregset struct */
565 #define NT_PLATFORM 5 /* String from sysinfo(SI_PLATFORM) */
566 #define NT_AUXV 6 /* Contains copy of auxv array */
567 #define NT_GWINDOWS 7 /* Contains copy of gwindows struct */
568 #define NT_PSTATUS 10 /* Contains copy of pstatus struct */
569 #define NT_PSINFO 13 /* Contains copy of psinfo struct */
570 #define NT_PRCRED 14 /* Contains copy of prcred struct */
571 #define NT_UTSNAME 15 /* Contains copy of utsname struct */
572 #define NT_LWPSTATUS 16 /* Contains copy of lwpstatus struct */
573 #define NT_LWPSINFO 17 /* Contains copy of lwpinfo struct */
574
575 /* Legal values for the note segment descriptor types for object files. */
576
577 #define NT_VERSION 1 /* Contains a version string. */
578
579
580 /* Dynamic section entry. */
581
582 typedef struct
583 {
584 Elf32_Sword d_tag; /* Dynamic entry type */
585 union
586 {
587 Elf32_Word d_val; /* Integer value */
588 Elf32_Addr d_ptr; /* Address value */
589 } d_un;
590 } Elf32_Dyn;
591
592 typedef struct
593 {
594 Elf64_Sxword d_tag; /* Dynamic entry type */
595 union
596 {
597 Elf64_Xword d_val; /* Integer value */
598 Elf64_Addr d_ptr; /* Address value */
599 } d_un;
600 } Elf64_Dyn;
601
602 /* Legal values for d_tag (dynamic entry type). */
603
604 #define DT_NULL 0 /* Marks end of dynamic section */
605 #define DT_NEEDED 1 /* Name of needed library */
606 #define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */
607 #define DT_PLTGOT 3 /* Processor defined value */
608 #define DT_HASH 4 /* Address of symbol hash table */
609 #define DT_STRTAB 5 /* Address of string table */
610 #define DT_SYMTAB 6 /* Address of symbol table */
611 #define DT_RELA 7 /* Address of Rela relocs */
612 #define DT_RELASZ 8 /* Total size of Rela relocs */
613 #define DT_RELAENT 9 /* Size of one Rela reloc */
614 #define DT_STRSZ 10 /* Size of string table */
615 #define DT_SYMENT 11 /* Size of one symbol table entry */
616 #define DT_INIT 12 /* Address of init function */
617 #define DT_FINI 13 /* Address of termination function */
618 #define DT_SONAME 14 /* Name of shared object */
619 #define DT_RPATH 15 /* Library search path */
620 #define DT_SYMBOLIC 16 /* Start symbol search here */
621 #define DT_REL 17 /* Address of Rel relocs */
622 #define DT_RELSZ 18 /* Total size of Rel relocs */
623 #define DT_RELENT 19 /* Size of one Rel reloc */
624 #define DT_PLTREL 20 /* Type of reloc in PLT */
625 #define DT_DEBUG 21 /* For debugging; unspecified */
626 #define DT_TEXTREL 22 /* Reloc might modify .text */
627 #define DT_JMPREL 23 /* Address of PLT relocs */
628 #define DT_BIND_NOW 24 /* Process relocations of object */
629 #define DT_INIT_ARRAY 25 /* Array with addresses of init fct */
630 #define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */
631 #define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */
632 #define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */
633 #define DT_NUM 29 /* Number used */
634 #define DT_LOOS 0x60000000 /* Start of OS-specific */
635 #define DT_HIOS 0x6fffffff /* End of OS-specific */
636 #define DT_LOPROC 0x70000000 /* Start of processor-specific */
637 #define DT_HIPROC 0x7fffffff /* End of processor-specific */
638 #define DT_PROCNUM DT_MIPS_NUM /* Most used by any processor */
639
640 /* DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the
641 Dyn.d_un.d_val field of the Elf*_Dyn structure. This follows Sun's
642 approach. */
643 #define DT_VALRNGLO 0x6ffffd00
644 #define DT_POSFLAG_1 0x6ffffdfd /* Flags for DT_* entries, effecting
645 the following DT_* entry. */
646 #define DT_SYMINSZ 0x6ffffdfe /* Size of syminfo table (in bytes) */
647 #define DT_SYMINENT 0x6ffffdff /* Entry size of syminfo */
648 #define DT_VALRNGHI 0x6ffffdff
649
650 /* DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the
651 Dyn.d_un.d_ptr field of the Elf*_Dyn structure.
652
653 If any adjustment is made to the ELF object after it has been
654 built these entries will need to be adjusted. */
655 #define DT_ADDRRNGLO 0x6ffffe00
656 #define DT_SYMINFO 0x6ffffeff /* syminfo table */
657 #define DT_ADDRRNGHI 0x6ffffeff
658
659 /* The versioning entry types. The next are defined as part of the
660 GNU extension. */
661 #define DT_VERSYM 0x6ffffff0
662
663 /* These were chosen by Sun. */
664 #define DT_FLAGS_1 0x6ffffffb /* State flags, see DF_1_* below. */
665 #define DT_VERDEF 0x6ffffffc /* Address of version definition
666 table */
667 #define DT_VERDEFNUM 0x6ffffffd /* Number of version definitions */
668 #define DT_VERNEED 0x6ffffffe /* Address of table with needed
669 versions */
670 #define DT_VERNEEDNUM 0x6fffffff /* Number of needed versions */
671 #define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */
672 #define DT_VERSIONTAGNUM 16
673
674 /* Sun added these machine-independent extensions in the "processor-specific"
675 range. Be compatible. */
676 #define DT_AUXILIARY 0x7ffffffd /* Shared object to load before self */
677 #define DT_FILTER 0x7fffffff /* Shared object to get values from */
678 #define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1)
679 #define DT_EXTRANUM 3
680
681 /* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1
682 entry in the dynamic section. */
683 #define DF_1_NOW 0x00000001 /* Set RTLD_NOW for this object. */
684 #define DF_1_GLOBAL 0x00000002 /* Set RTLD_GLOBAL for this object. */
685 #define DF_1_GROUP 0x00000004 /* Set RTLD_GROUP for this object. */
686 #define DF_1_NODELETE 0x00000008 /* Set RTLD_NODELETE for this object.*/
687 #define DF_1_LOADFLTR 0x00000010 /* Trigger filtee loading at runtime.*/
688 #define DF_1_INITFIRST 0x00000020 /* Set RTLD_INITFIRST for this object*/
689 #define DF_1_NOOPEN 0x00000040 /* Set RTLD_NOOPEN for this object. */
690
691 /* Version definition sections. */
692
693 typedef struct
694 {
695 Elf32_Half vd_version; /* Version revision */
696 Elf32_Half vd_flags; /* Version information */
697 Elf32_Half vd_ndx; /* Version Index */
698 Elf32_Half vd_cnt; /* Number of associated aux entries */
699 Elf32_Word vd_hash; /* Version name hash value */
700 Elf32_Word vd_aux; /* Offset in bytes to verdaux array */
701 Elf32_Word vd_next; /* Offset in bytes to next verdef
702 entry */
703 } Elf32_Verdef;
704
705 typedef struct
706 {
707 Elf64_Half vd_version; /* Version revision */
708 Elf64_Half vd_flags; /* Version information */
709 Elf64_Half vd_ndx; /* Version Index */
710 Elf64_Half vd_cnt; /* Number of associated aux entries */
711 Elf64_Word vd_hash; /* Version name hash value */
712 Elf64_Word vd_aux; /* Offset in bytes to verdaux array */
713 Elf64_Word vd_next; /* Offset in bytes to next verdef
714 entry */
715 } Elf64_Verdef;
716
717
718 /* Legal values for vd_version (version revision). */
719 #define VER_DEF_NONE 0 /* No version */
720 #define VER_DEF_CURRENT 1 /* Current version */
721 #define VER_DEF_NUM 2 /* Given version number */
722
723 /* Legal values for vd_flags (version information flags). */
724 #define VER_FLG_BASE 0x1 /* Version definition of file itself */
725 #define VER_FLG_WEAK 0x2 /* Weak version identifier */
726
727 /* Auxialiary version information. */
728
729 typedef struct
730 {
731 Elf32_Word vda_name; /* Version or dependency names */
732 Elf32_Word vda_next; /* Offset in bytes to next verdaux
733 entry */
734 } Elf32_Verdaux;
735
736 typedef struct
737 {
738 Elf64_Word vda_name; /* Version or dependency names */
739 Elf64_Word vda_next; /* Offset in bytes to next verdaux
740 entry */
741 } Elf64_Verdaux;
742
743
744 /* Version dependency section. */
745
746 typedef struct
747 {
748 Elf32_Half vn_version; /* Version of structure */
749 Elf32_Half vn_cnt; /* Number of associated aux entries */
750 Elf32_Word vn_file; /* Offset of filename for this
751 dependency */
752 Elf32_Word vn_aux; /* Offset in bytes to vernaux array */
753 Elf32_Word vn_next; /* Offset in bytes to next verneed
754 entry */
755 } Elf32_Verneed;
756
757 typedef struct
758 {
759 Elf64_Half vn_version; /* Version of structure */
760 Elf64_Half vn_cnt; /* Number of associated aux entries */
761 Elf64_Word vn_file; /* Offset of filename for this
762 dependency */
763 Elf64_Word vn_aux; /* Offset in bytes to vernaux array */
764 Elf64_Word vn_next; /* Offset in bytes to next verneed
765 entry */
766 } Elf64_Verneed;
767
768
769 /* Legal values for vn_version (version revision). */
770 #define VER_NEED_NONE 0 /* No version */
771 #define VER_NEED_CURRENT 1 /* Current version */
772 #define VER_NEED_NUM 2 /* Given version number */
773
774 /* Auxiliary needed version information. */
775
776 typedef struct
777 {
778 Elf32_Word vna_hash; /* Hash value of dependency name */
779 Elf32_Half vna_flags; /* Dependency specific information */
780 Elf32_Half vna_other; /* Unused */
781 Elf32_Word vna_name; /* Dependency name string offset */
782 Elf32_Word vna_next; /* Offset in bytes to next vernaux
783 entry */
784 } Elf32_Vernaux;
785
786 typedef struct
787 {
788 Elf64_Word vna_hash; /* Hash value of dependency name */
789 Elf64_Half vna_flags; /* Dependency specific information */
790 Elf64_Half vna_other; /* Unused */
791 Elf64_Word vna_name; /* Dependency name string offset */
792 Elf64_Word vna_next; /* Offset in bytes to next vernaux
793 entry */
794 } Elf64_Vernaux;
795
796
797 /* Legal values for vna_flags. */
798 #define VER_FLG_WEAK 0x2 /* Weak version identifier */
799
800
801 /* Auxiliary vector. */
802
803 /* This vector is normally only used by the program interpreter. The
804 usual definition in an ABI supplement uses the name auxv_t. The
805 vector is not usually defined in a standard <elf.h> file, but it
806 can't hurt. We rename it to avoid conflicts. The sizes of these
807 types are an arrangement between the exec server and the program
808 interpreter, so we don't fully specify them here. */
809
810 typedef struct
811 {
812 int a_type; /* Entry type */
813 union
814 {
815 long int a_val; /* Integer value */
816 void *a_ptr; /* Pointer value */
817 void (*a_fcn) (void); /* Function pointer value */
818 } a_un;
819 } Elf32_auxv_t;
820
821 typedef struct
822 {
823 long int a_type; /* Entry type */
824 union
825 {
826 long int a_val; /* Integer value */
827 void *a_ptr; /* Pointer value */
828 void (*a_fcn) (void); /* Function pointer value */
829 } a_un;
830 } Elf64_auxv_t;
831
832 /* Legal values for a_type (entry type). */
833
834 #define AT_NULL 0 /* End of vector */
835 #define AT_IGNORE 1 /* Entry should be ignored */
836 #define AT_EXECFD 2 /* File descriptor of program */
837 #define AT_PHDR 3 /* Program headers for program */
838 #define AT_PHENT 4 /* Size of program header entry */
839 #define AT_PHNUM 5 /* Number of program headers */
840 #define AT_PAGESZ 6 /* System page size */
841 #define AT_BASE 7 /* Base address of interpreter */
842 #define AT_FLAGS 8 /* Flags */
843 #define AT_ENTRY 9 /* Entry point of program */
844 #define AT_NOTELF 10 /* Program is not ELF */
845 #define AT_UID 11 /* Real uid */
846 #define AT_EUID 12 /* Effective uid */
847 #define AT_GID 13 /* Real gid */
848 #define AT_EGID 14 /* Effective gid */
849
850 /* Some more special a_type values describing the hardware. */
851 #define AT_PLATFORM 15 /* String identifying platform. */
852 #define AT_HWCAP 16 /* Machine dependent hints about
853 processor capabilities. */
854
855 /* This entry gives some information about the FPU initialization
856 performed by the kernel. */
857 #define AT_FPUCW 17 /* Used FPU control word. */
858
859
860 /* Note section contents. Each entry in the note section begins with
861 a header of a fixed form. */
862
863 typedef struct
864 {
865 Elf32_Word n_namesz; /* Length of the note's name. */
866 Elf32_Word n_descsz; /* Length of the note's descriptor. */
867 Elf32_Word n_type; /* Type of the note. */
868 } Elf32_Nhdr;
869
870 typedef struct
871 {
872 Elf64_Word n_namesz; /* Length of the note's name. */
873 Elf64_Word n_descsz; /* Length of the note's descriptor. */
874 Elf64_Word n_type; /* Type of the note. */
875 } Elf64_Nhdr;
876
877 /* Known names of notes. */
878
879 /* Solaris entries in the note section have this name. */
880 #define ELF_NOTE_SOLARIS "SUNW Solaris"
881
882 /* Note entries for GNU systems have this name. */
883 #define ELF_NOTE_GNU "GNU"
884
885
886 /* Defined types of notes for Solaris. */
887
888 /* Value of descriptor (one word) is desired pagesize for the binary. */
889 #define ELF_NOTE_PAGESIZE_HINT 1
890
891
892 /* Defined note types for GNU systems. */
893
894 /* ABI information. The descriptor consists of words:
895 word 0: OS descriptor
896 word 1: major version of the ABI
897 word 2: minor version of the ABI
898 word 3: subminor version of the ABI
899 */
900 #define ELF_NOTE_ABI 1
901
902 /* Known OSes. These value can appear in word 0 of an ELF_NOTE_ABI
903 note section entry. */
904 #define ELF_NOTE_OS_LINUX 0
905 #define ELF_NOTE_OS_GNU 1
906 #define ELF_NOTE_OS_SOLARIS2 2
907
908
909 /* Motorola 68k specific definitions. */
910
911 /* m68k relocs. */
912
913 #define R_68K_NONE 0 /* No reloc */
914 #define R_68K_32 1 /* Direct 32 bit */
915 #define R_68K_16 2 /* Direct 16 bit */
916 #define R_68K_8 3 /* Direct 8 bit */
917 #define R_68K_PC32 4 /* PC relative 32 bit */
918 #define R_68K_PC16 5 /* PC relative 16 bit */
919 #define R_68K_PC8 6 /* PC relative 8 bit */
920 #define R_68K_GOT32 7 /* 32 bit PC relative GOT entry */
921 #define R_68K_GOT16 8 /* 16 bit PC relative GOT entry */
922 #define R_68K_GOT8 9 /* 8 bit PC relative GOT entry */
923 #define R_68K_GOT32O 10 /* 32 bit GOT offset */
924 #define R_68K_GOT16O 11 /* 16 bit GOT offset */
925 #define R_68K_GOT8O 12 /* 8 bit GOT offset */
926 #define R_68K_PLT32 13 /* 32 bit PC relative PLT address */
927 #define R_68K_PLT16 14 /* 16 bit PC relative PLT address */
928 #define R_68K_PLT8 15 /* 8 bit PC relative PLT address */
929 #define R_68K_PLT32O 16 /* 32 bit PLT offset */
930 #define R_68K_PLT16O 17 /* 16 bit PLT offset */
931 #define R_68K_PLT8O 18 /* 8 bit PLT offset */
932 #define R_68K_COPY 19 /* Copy symbol at runtime */
933 #define R_68K_GLOB_DAT 20 /* Create GOT entry */
934 #define R_68K_JMP_SLOT 21 /* Create PLT entry */
935 #define R_68K_RELATIVE 22 /* Adjust by program base */
936 /* Keep this the last entry. */
937 #define R_68K_NUM 23
938
939 /* Intel 80386 specific definitions. */
940
941 /* i386 relocs. */
942
943 #define R_386_NONE 0 /* No reloc */
944 #define R_386_32 1 /* Direct 32 bit */
945 #define R_386_PC32 2 /* PC relative 32 bit */
946 #define R_386_GOT32 3 /* 32 bit GOT entry */
947 #define R_386_PLT32 4 /* 32 bit PLT address */
948 #define R_386_COPY 5 /* Copy symbol at runtime */
949 #define R_386_GLOB_DAT 6 /* Create GOT entry */
950 #define R_386_JMP_SLOT 7 /* Create PLT entry */
951 #define R_386_RELATIVE 8 /* Adjust by program base */
952 #define R_386_GOTOFF 9 /* 32 bit offset to GOT */
953 #define R_386_GOTPC 10 /* 32 bit PC relative offset to GOT */
954 /* Keep this the last entry. */
955 #define R_386_NUM 11
956
957 /* TCC-specific 16-bit relocs. */
958 #define R_386_16 12 /* Direct 16 bit */
959 #define R_386_PC16 13 /* PC relative 16 bit */
960
961 /* SUN SPARC specific definitions. */
962
963 /* Values for Elf64_Ehdr.e_flags. */
964
965 #define EF_SPARCV9_MM 3
966 #define EF_SPARCV9_TSO 0
967 #define EF_SPARCV9_PSO 1
968 #define EF_SPARCV9_RMO 2
969 #define EF_SPARC_EXT_MASK 0xFFFF00
970 #define EF_SPARC_SUN_US1 0x000200
971 #define EF_SPARC_HAL_R1 0x000400
972
973 /* SPARC relocs. */
974
975 #define R_SPARC_NONE 0 /* No reloc */
976 #define R_SPARC_8 1 /* Direct 8 bit */
977 #define R_SPARC_16 2 /* Direct 16 bit */
978 #define R_SPARC_32 3 /* Direct 32 bit */
979 #define R_SPARC_DISP8 4 /* PC relative 8 bit */
980 #define R_SPARC_DISP16 5 /* PC relative 16 bit */
981 #define R_SPARC_DISP32 6 /* PC relative 32 bit */
982 #define R_SPARC_WDISP30 7 /* PC relative 30 bit shifted */
983 #define R_SPARC_WDISP22 8 /* PC relative 22 bit shifted */
984 #define R_SPARC_HI22 9 /* High 22 bit */
985 #define R_SPARC_22 10 /* Direct 22 bit */
986 #define R_SPARC_13 11 /* Direct 13 bit */
987 #define R_SPARC_LO10 12 /* Truncated 10 bit */
988 #define R_SPARC_GOT10 13 /* Truncated 10 bit GOT entry */
989 #define R_SPARC_GOT13 14 /* 13 bit GOT entry */
990 #define R_SPARC_GOT22 15 /* 22 bit GOT entry shifted */
991 #define R_SPARC_PC10 16 /* PC relative 10 bit truncated */
992 #define R_SPARC_PC22 17 /* PC relative 22 bit shifted */
993 #define R_SPARC_WPLT30 18 /* 30 bit PC relative PLT address */
994 #define R_SPARC_COPY 19 /* Copy symbol at runtime */
995 #define R_SPARC_GLOB_DAT 20 /* Create GOT entry */
996 #define R_SPARC_JMP_SLOT 21 /* Create PLT entry */
997 #define R_SPARC_RELATIVE 22 /* Adjust by program base */
998 #define R_SPARC_UA32 23 /* Direct 32 bit unaligned */
999
1000 /* Additional Sparc64 relocs. */
1001
1002 #define R_SPARC_PLT32 24 /* Direct 32 bit ref to PLT entry */
1003 #define R_SPARC_HIPLT22 25 /* High 22 bit PLT entry */
1004 #define R_SPARC_LOPLT10 26 /* Truncated 10 bit PLT entry */
1005 #define R_SPARC_PCPLT32 27 /* PC rel 32 bit ref to PLT entry */
1006 #define R_SPARC_PCPLT22 28 /* PC rel high 22 bit PLT entry */
1007 #define R_SPARC_PCPLT10 29 /* PC rel trunc 10 bit PLT entry */
1008 #define R_SPARC_10 30 /* Direct 10 bit */
1009 #define R_SPARC_11 31 /* Direct 11 bit */
1010 #define R_SPARC_64 32 /* Direct 64 bit */
1011 #define R_SPARC_OLO10 33 /* ?? */
1012 #define R_SPARC_HH22 34 /* Top 22 bits of direct 64 bit */
1013 #define R_SPARC_HM10 35 /* High middle 10 bits of ... */
1014 #define R_SPARC_LM22 36 /* Low middle 22 bits of ... */
1015 #define R_SPARC_PC_HH22 37 /* Top 22 bits of pc rel 64 bit */
1016 #define R_SPARC_PC_HM10 38 /* High middle 10 bit of ... */
1017 #define R_SPARC_PC_LM22 39 /* Low miggle 22 bits of ... */
1018 #define R_SPARC_WDISP16 40 /* PC relative 16 bit shifted */
1019 #define R_SPARC_WDISP19 41 /* PC relative 19 bit shifted */
1020 #define R_SPARC_7 43 /* Direct 7 bit */
1021 #define R_SPARC_5 44 /* Direct 5 bit */
1022 #define R_SPARC_6 45 /* Direct 6 bit */
1023 #define R_SPARC_DISP64 46 /* PC relative 64 bit */
1024 #define R_SPARC_PLT64 47 /* Direct 64 bit ref to PLT entry */
1025 #define R_SPARC_HIX22 48 /* High 22 bit complemented */
1026 #define R_SPARC_LOX10 49 /* Truncated 11 bit complemented */
1027 #define R_SPARC_H44 50 /* Direct high 12 of 44 bit */
1028 #define R_SPARC_M44 51 /* Direct mid 22 of 44 bit */
1029 #define R_SPARC_L44 52 /* Direct low 10 of 44 bit */
1030 #define R_SPARC_REGISTER 53 /* Global register usage */
1031 #define R_SPARC_UA64 54 /* Direct 64 bit unaligned */
1032 #define R_SPARC_UA16 55 /* Direct 16 bit unaligned */
1033 /* Keep this the last entry. */
1034 #define R_SPARC_NUM 56
1035
1036 /* AMD x86-64 relocations. */
1037 #define R_X86_64_NONE 0 /* No reloc */
1038 #define R_X86_64_64 1 /* Direct 64 bit */
1039 #define R_X86_64_PC32 2 /* PC relative 32 bit signed */
1040 #define R_X86_64_GOT32 3 /* 32 bit GOT entry */
1041 #define R_X86_64_PLT32 4 /* 32 bit PLT address */
1042 #define R_X86_64_COPY 5 /* Copy symbol at runtime */
1043 #define R_X86_64_GLOB_DAT 6 /* Create GOT entry */
1044 #define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */
1045 #define R_X86_64_RELATIVE 8 /* Adjust by program base */
1046 #define R_X86_64_GOTPCREL 9 /* 32 bit signed PC relative
1047 offset to GOT */
1048 #define R_X86_64_32 10 /* Direct 32 bit zero extended */
1049 #define R_X86_64_32S 11 /* Direct 32 bit sign extended */
1050 #define R_X86_64_16 12 /* Direct 16 bit zero extended */
1051 #define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */
1052 #define R_X86_64_8 14 /* Direct 8 bit sign extended */
1053 #define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */
1054 #define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */
1055 #define R_X86_64_DTPOFF64 17 /* Offset in module's TLS block */
1056 #define R_X86_64_TPOFF64 18 /* Offset in initial TLS block */
1057 #define R_X86_64_TLSGD 19 /* 32 bit signed PC relative offset
1058 to two GOT entries for GD symbol */
1059 #define R_X86_64_TLSLD 20 /* 32 bit signed PC relative offset
1060 to two GOT entries for LD symbol */
1061 #define R_X86_64_DTPOFF32 21 /* Offset in TLS block */
1062 #define R_X86_64_GOTTPOFF 22 /* 32 bit signed PC relative offset
1063 to GOT entry for IE symbol */
1064 #define R_X86_64_TPOFF32 23 /* Offset in initial TLS block */
1065
1066 #define R_X86_64_NUM 24
1067
1068 /* For Sparc64, legal values for d_tag of Elf64_Dyn. */
1069
1070 #define DT_SPARC_REGISTER 0x70000001
1071 #define DT_SPARC_NUM 2
1072
1073 /* Bits present in AT_HWCAP, primarily for Sparc32. */
1074
1075 #define HWCAP_SPARC_FLUSH 1 /* The cpu supports flush insn. */
1076 #define HWCAP_SPARC_STBAR 2
1077 #define HWCAP_SPARC_SWAP 4
1078 #define HWCAP_SPARC_MULDIV 8
1079 #define HWCAP_SPARC_V9 16 /* The cpu is v9, so v8plus is ok. */
1080
1081 /* MIPS R3000 specific definitions. */
1082
1083 /* Legal values for e_flags field of Elf32_Ehdr. */
1084
1085 #define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */
1086 #define EF_MIPS_PIC 2 /* Contains PIC code */
1087 #define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */
1088 #define EF_MIPS_XGOT 8
1089 #define EF_MIPS_64BIT_WHIRL 16
1090 #define EF_MIPS_ABI2 32
1091 #define EF_MIPS_ABI_ON32 64
1092 #define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */
1093
1094 /* Legal values for MIPS architecture level. */
1095
1096 #define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
1097 #define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
1098 #define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
1099 #define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
1100 #define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
1101
1102 /* The following are non-official names and should not be used. */
1103
1104 #define E_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
1105 #define E_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
1106 #define E_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
1107 #define E_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
1108 #define E_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
1109
1110 /* Special section indices. */
1111
1112 #define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */
1113 #define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */
1114 #define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */
1115 #define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */
1116 #define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */
1117
1118 /* Legal values for sh_type field of Elf32_Shdr. */
1119
1120 #define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */
1121 #define SHT_MIPS_MSYM 0x70000001
1122 #define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */
1123 #define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */
1124 #define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */
1125 #define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information*/
1126 #define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */
1127 #define SHT_MIPS_PACKAGE 0x70000007
1128 #define SHT_MIPS_PACKSYM 0x70000008
1129 #define SHT_MIPS_RELD 0x70000009
1130 #define SHT_MIPS_IFACE 0x7000000b
1131 #define SHT_MIPS_CONTENT 0x7000000c
1132 #define SHT_MIPS_OPTIONS 0x7000000d /* Miscellaneous options. */
1133 #define SHT_MIPS_SHDR 0x70000010
1134 #define SHT_MIPS_FDESC 0x70000011
1135 #define SHT_MIPS_EXTSYM 0x70000012
1136 #define SHT_MIPS_DENSE 0x70000013
1137 #define SHT_MIPS_PDESC 0x70000014
1138 #define SHT_MIPS_LOCSYM 0x70000015
1139 #define SHT_MIPS_AUXSYM 0x70000016
1140 #define SHT_MIPS_OPTSYM 0x70000017
1141 #define SHT_MIPS_LOCSTR 0x70000018
1142 #define SHT_MIPS_LINE 0x70000019
1143 #define SHT_MIPS_RFDESC 0x7000001a
1144 #define SHT_MIPS_DELTASYM 0x7000001b
1145 #define SHT_MIPS_DELTAINST 0x7000001c
1146 #define SHT_MIPS_DELTACLASS 0x7000001d
1147 #define SHT_MIPS_DWARF 0x7000001e /* DWARF debugging information. */
1148 #define SHT_MIPS_DELTADECL 0x7000001f
1149 #define SHT_MIPS_SYMBOL_LIB 0x70000020
1150 #define SHT_MIPS_EVENTS 0x70000021 /* Event section. */
1151 #define SHT_MIPS_TRANSLATE 0x70000022
1152 #define SHT_MIPS_PIXIE 0x70000023
1153 #define SHT_MIPS_XLATE 0x70000024
1154 #define SHT_MIPS_XLATE_DEBUG 0x70000025
1155 #define SHT_MIPS_WHIRL 0x70000026
1156 #define SHT_MIPS_EH_REGION 0x70000027
1157 #define SHT_MIPS_XLATE_OLD 0x70000028
1158 #define SHT_MIPS_PDR_EXCEPTION 0x70000029
1159
1160 /* Legal values for sh_flags field of Elf32_Shdr. */
1161
1162 #define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */
1163 #define SHF_MIPS_MERGE 0x20000000
1164 #define SHF_MIPS_ADDR 0x40000000
1165 #define SHF_MIPS_STRINGS 0x80000000
1166 #define SHF_MIPS_NOSTRIP 0x08000000
1167 #define SHF_MIPS_LOCAL 0x04000000
1168 #define SHF_MIPS_NAMES 0x02000000
1169 #define SHF_MIPS_NODUPE 0x01000000
1170
1171
1172 /* Symbol tables. */
1173
1174 /* MIPS specific values for `st_other'. */
1175 #define STO_MIPS_DEFAULT 0x0
1176 #define STO_MIPS_INTERNAL 0x1
1177 #define STO_MIPS_HIDDEN 0x2
1178 #define STO_MIPS_PROTECTED 0x3
1179 #define STO_MIPS_SC_ALIGN_UNUSED 0xff
1180
1181 /* MIPS specific values for `st_info'. */
1182 #define STB_MIPS_SPLIT_COMMON 13
1183
1184 /* Entries found in sections of type SHT_MIPS_GPTAB. */
1185
1186 typedef union
1187 {
1188 struct
1189 {
1190 Elf32_Word gt_current_g_value; /* -G value used for compilation */
1191 Elf32_Word gt_unused; /* Not used */
1192 } gt_header; /* First entry in section */
1193 struct
1194 {
1195 Elf32_Word gt_g_value; /* If this value were used for -G */
1196 Elf32_Word gt_bytes; /* This many bytes would be used */
1197 } gt_entry; /* Subsequent entries in section */
1198 } Elf32_gptab;
1199
1200 /* Entry found in sections of type SHT_MIPS_REGINFO. */
1201
1202 typedef struct
1203 {
1204 Elf32_Word ri_gprmask; /* General registers used */
1205 Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */
1206 Elf32_Sword ri_gp_value; /* $gp register value */
1207 } Elf32_RegInfo;
1208
1209 /* Entries found in sections of type SHT_MIPS_OPTIONS. */
1210
1211 typedef struct
1212 {
1213 unsigned char kind; /* Determines interpretation of the
1214 variable part of descriptor. */
1215 unsigned char size; /* Size of descriptor, including header. */
1216 Elf32_Section section; /* Section header index of section affected,
1217 0 for global options. */
1218 Elf32_Word info; /* Kind-specific information. */
1219 } Elf_Options;
1220
1221 /* Values for `kind' field in Elf_Options. */
1222
1223 #define ODK_NULL 0 /* Undefined. */
1224 #define ODK_REGINFO 1 /* Register usage information. */
1225 #define ODK_EXCEPTIONS 2 /* Exception processing options. */
1226 #define ODK_PAD 3 /* Section padding options. */
1227 #define ODK_HWPATCH 4 /* Hardware workarounds performed */
1228 #define ODK_FILL 5 /* record the fill value used by the linker. */
1229 #define ODK_TAGS 6 /* reserve space for desktop tools to write. */
1230 #define ODK_HWAND 7 /* HW workarounds. 'AND' bits when merging. */
1231 #define ODK_HWOR 8 /* HW workarounds. 'OR' bits when merging. */
1232
1233 /* Values for `info' in Elf_Options for ODK_EXCEPTIONS entries. */
1234
1235 #define OEX_FPU_MIN 0x1f /* FPE's which MUST be enabled. */
1236 #define OEX_FPU_MAX 0x1f00 /* FPE's which MAY be enabled. */
1237 #define OEX_PAGE0 0x10000 /* page zero must be mapped. */
1238 #define OEX_SMM 0x20000 /* Force sequential memory mode? */
1239 #define OEX_FPDBUG 0x40000 /* Force floating point debug mode? */
1240 #define OEX_PRECISEFP OEX_FPDBUG
1241 #define OEX_DISMISS 0x80000 /* Dismiss invalid address faults? */
1242
1243 #define OEX_FPU_INVAL 0x10
1244 #define OEX_FPU_DIV0 0x08
1245 #define OEX_FPU_OFLO 0x04
1246 #define OEX_FPU_UFLO 0x02
1247 #define OEX_FPU_INEX 0x01
1248
1249 /* Masks for `info' in Elf_Options for an ODK_HWPATCH entry. */
1250
1251 #define OHW_R4KEOP 0x1 /* R4000 end-of-page patch. */
1252 #define OHW_R8KPFETCH 0x2 /* may need R8000 prefetch patch. */
1253 #define OHW_R5KEOP 0x4 /* R5000 end-of-page patch. */
1254 #define OHW_R5KCVTL 0x8 /* R5000 cvt.[ds].l bug. clean=1. */
1255
1256 #define OPAD_PREFIX 0x1
1257 #define OPAD_POSTFIX 0x2
1258 #define OPAD_SYMBOL 0x4
1259
1260 /* Entry found in `.options' section. */
1261
1262 typedef struct
1263 {
1264 Elf32_Word hwp_flags1; /* Extra flags. */
1265 Elf32_Word hwp_flags2; /* Extra flags. */
1266 } Elf_Options_Hw;
1267
1268 /* Masks for `info' in ElfOptions for ODK_HWAND and ODK_HWOR entries. */
1269
1270 #define OHWA0_R4KEOP_CHECKED 0x00000001
1271 #define OHWA1_R4KEOP_CLEAN 0x00000002
1272
1273 /* MIPS relocs. */
1274
1275 #define R_MIPS_NONE 0 /* No reloc */
1276 #define R_MIPS_16 1 /* Direct 16 bit */
1277 #define R_MIPS_32 2 /* Direct 32 bit */
1278 #define R_MIPS_REL32 3 /* PC relative 32 bit */
1279 #define R_MIPS_26 4 /* Direct 26 bit shifted */
1280 #define R_MIPS_HI16 5 /* High 16 bit */
1281 #define R_MIPS_LO16 6 /* Low 16 bit */
1282 #define R_MIPS_GPREL16 7 /* GP relative 16 bit */
1283 #define R_MIPS_LITERAL 8 /* 16 bit literal entry */
1284 #define R_MIPS_GOT16 9 /* 16 bit GOT entry */
1285 #define R_MIPS_PC16 10 /* PC relative 16 bit */
1286 #define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */
1287 #define R_MIPS_GPREL32 12 /* GP relative 32 bit */
1288
1289 #define R_MIPS_SHIFT5 16
1290 #define R_MIPS_SHIFT6 17
1291 #define R_MIPS_64 18
1292 #define R_MIPS_GOT_DISP 19
1293 #define R_MIPS_GOT_PAGE 20
1294 #define R_MIPS_GOT_OFST 21
1295 #define R_MIPS_GOT_HI16 22
1296 #define R_MIPS_GOT_LO16 23
1297 #define R_MIPS_SUB 24
1298 #define R_MIPS_INSERT_A 25
1299 #define R_MIPS_INSERT_B 26
1300 #define R_MIPS_DELETE 27
1301 #define R_MIPS_HIGHER 28
1302 #define R_MIPS_HIGHEST 29
1303 #define R_MIPS_CALL_HI16 30
1304 #define R_MIPS_CALL_LO16 31
1305 #define R_MIPS_SCN_DISP 32
1306 #define R_MIPS_REL16 33
1307 #define R_MIPS_ADD_IMMEDIATE 34
1308 #define R_MIPS_PJUMP 35
1309 #define R_MIPS_RELGOT 36
1310 #define R_MIPS_JALR 37
1311 /* Keep this the last entry. */
1312 #define R_MIPS_NUM 38
1313
1314 /* Legal values for p_type field of Elf32_Phdr. */
1315
1316 #define PT_MIPS_REGINFO 0x70000000 /* Register usage information */
1317 #define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */
1318 #define PT_MIPS_OPTIONS 0x70000002
1319
1320 /* Special program header types. */
1321
1322 #define PF_MIPS_LOCAL 0x10000000
1323
1324 /* Legal values for d_tag field of Elf32_Dyn. */
1325
1326 #define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime linker interface version */
1327 #define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */
1328 #define DT_MIPS_ICHECKSUM 0x70000003 /* Checksum */
1329 #define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */
1330 #define DT_MIPS_FLAGS 0x70000005 /* Flags */
1331 #define DT_MIPS_BASE_ADDRESS 0x70000006 /* Base address */
1332 #define DT_MIPS_MSYM 0x70000007
1333 #define DT_MIPS_CONFLICT 0x70000008 /* Address of CONFLICT section */
1334 #define DT_MIPS_LIBLIST 0x70000009 /* Address of LIBLIST section */
1335 #define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local GOT entries */
1336 #define DT_MIPS_CONFLICTNO 0x7000000b /* Number of CONFLICT entries */
1337 #define DT_MIPS_LIBLISTNO 0x70000010 /* Number of LIBLIST entries */
1338 #define DT_MIPS_SYMTABNO 0x70000011 /* Number of DYNSYM entries */
1339 #define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */
1340 #define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in DYNSYM */
1341 #define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */
1342 #define DT_MIPS_RLD_MAP 0x70000016 /* Address of run time loader map. */
1343 #define DT_MIPS_DELTA_CLASS 0x70000017 /* Delta C++ class definition. */
1344 #define DT_MIPS_DELTA_CLASS_NO 0x70000018 /* Number of entries in
1345 DT_MIPS_DELTA_CLASS. */
1346 #define DT_MIPS_DELTA_INSTANCE 0x70000019 /* Delta C++ class instances. */
1347 #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a /* Number of entries in
1348 DT_MIPS_DELTA_INSTANCE. */
1349 #define DT_MIPS_DELTA_RELOC 0x7000001b /* Delta relocations. */
1350 #define DT_MIPS_DELTA_RELOC_NO 0x7000001c /* Number of entries in
1351 DT_MIPS_DELTA_RELOC. */
1352 #define DT_MIPS_DELTA_SYM 0x7000001d /* Delta symbols that Delta
1353 relocations refer to. */
1354 #define DT_MIPS_DELTA_SYM_NO 0x7000001e /* Number of entries in
1355 DT_MIPS_DELTA_SYM. */
1356 #define DT_MIPS_DELTA_CLASSSYM 0x70000020 /* Delta symbols that hold the
1357 class declaration. */
1358 #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 /* Number of entries in
1359 DT_MIPS_DELTA_CLASSSYM. */
1360 #define DT_MIPS_CXX_FLAGS 0x70000022 /* Flags indicating for C++ flavor. */
1361 #define DT_MIPS_PIXIE_INIT 0x70000023
1362 #define DT_MIPS_SYMBOL_LIB 0x70000024
1363 #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025
1364 #define DT_MIPS_LOCAL_GOTIDX 0x70000026
1365 #define DT_MIPS_HIDDEN_GOTIDX 0x70000027
1366 #define DT_MIPS_PROTECTED_GOTIDX 0x70000028
1367 #define DT_MIPS_OPTIONS 0x70000029 /* Address of .options. */
1368 #define DT_MIPS_INTERFACE 0x7000002a /* Address of .interface. */
1369 #define DT_MIPS_DYNSTR_ALIGN 0x7000002b
1370 #define DT_MIPS_INTERFACE_SIZE 0x7000002c /* Size of the .interface section. */
1371 #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d /* Address of rld_text_rsolve
1372 function stored in GOT. */
1373 #define DT_MIPS_PERF_SUFFIX 0x7000002e /* Default suffix of dso to be added
1374 by rld on dlopen() calls. */
1375 #define DT_MIPS_COMPACT_SIZE 0x7000002f /* (O32)Size of compact rel section. */
1376 #define DT_MIPS_GP_VALUE 0x70000030 /* GP value for aux GOTs. */
1377 #define DT_MIPS_AUX_DYNAMIC 0x70000031 /* Address of aux .dynamic. */
1378 #define DT_MIPS_NUM 0x32
1379
1380 /* Legal values for DT_MIPS_FLAGS Elf32_Dyn entry. */
1381
1382 #define RHF_NONE 0 /* No flags */
1383 #define RHF_QUICKSTART (1 << 0) /* Use quickstart */
1384 #define RHF_NOTPOT (1 << 1) /* Hash size not power of 2 */
1385 #define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) /* Ignore LD_LIBRARY_PATH */
1386 #define RHF_NO_MOVE (1 << 3)
1387 #define RHF_SGI_ONLY (1 << 4)
1388 #define RHF_GUARANTEE_INIT (1 << 5)
1389 #define RHF_DELTA_C_PLUS_PLUS (1 << 6)
1390 #define RHF_GUARANTEE_START_INIT (1 << 7)
1391 #define RHF_PIXIE (1 << 8)
1392 #define RHF_DEFAULT_DELAY_LOAD (1 << 9)
1393 #define RHF_REQUICKSTART (1 << 10)
1394 #define RHF_REQUICKSTARTED (1 << 11)
1395 #define RHF_CORD (1 << 12)
1396 #define RHF_NO_UNRES_UNDEF (1 << 13)
1397 #define RHF_RLD_ORDER_SAFE (1 << 14)
1398
1399 /* Entries found in sections of type SHT_MIPS_LIBLIST. */
1400
1401 typedef struct
1402 {
1403 Elf32_Word l_name; /* Name (string table index) */
1404 Elf32_Word l_time_stamp; /* Timestamp */
1405 Elf32_Word l_checksum; /* Checksum */
1406 Elf32_Word l_version; /* Interface version */
1407 Elf32_Word l_flags; /* Flags */
1408 } Elf32_Lib;
1409
1410 typedef struct
1411 {
1412 Elf64_Word l_name; /* Name (string table index) */
1413 Elf64_Word l_time_stamp; /* Timestamp */
1414 Elf64_Word l_checksum; /* Checksum */
1415 Elf64_Word l_version; /* Interface version */
1416 Elf64_Word l_flags; /* Flags */
1417 } Elf64_Lib;
1418
1419
1420 /* Legal values for l_flags. */
1421
1422 #define LL_NONE 0
1423 #define LL_EXACT_MATCH (1 << 0) /* Require exact match */
1424 #define LL_IGNORE_INT_VER (1 << 1) /* Ignore interface version */
1425 #define LL_REQUIRE_MINOR (1 << 2)
1426 #define LL_EXPORTS (1 << 3)
1427 #define LL_DELAY_LOAD (1 << 4)
1428 #define LL_DELTA (1 << 5)
1429
1430 /* Entries found in sections of type SHT_MIPS_CONFLICT. */
1431
1432 typedef Elf32_Addr Elf32_Conflict;
1433
1434
1435 /* HPPA specific definitions. */
1436
1437 /* Legal values for e_flags field of Elf32_Ehdr. */
1438
1439 #define EF_PARISC_TRAPNL 1 /* Trap nil pointer dereference. */
1440 #define EF_PARISC_EXT 2 /* Program uses arch. extensions. */
1441 #define EF_PARISC_ARCH 0xffff0000 /* Architecture version. */
1442 /* Defined values are:
1443 0x020b PA-RISC 1.0 big-endian
1444 0x0210 PA-RISC 1.1 big-endian
1445 0x028b PA-RISC 1.0 little-endian
1446 0x0290 PA-RISC 1.1 little-endian
1447 */
1448
1449 /* Legal values for sh_type field of Elf32_Shdr. */
1450
1451 #define SHT_PARISC_GOT 0x70000000 /* GOT for external data. */
1452 #define SHT_PARISC_ARCH 0x70000001 /* Architecture extensions. */
1453 #define SHT_PARISC_GLOBAL 0x70000002 /* Definition of $global$. */
1454 #define SHT_PARISC_MILLI 0x70000003 /* Millicode routines. */
1455 #define SHT_PARISC_UNWIND 0x70000004 /* Unwind information. */
1456 #define SHT_PARISC_PLT 0x70000005 /* Procedure linkage table. */
1457 #define SHT_PARISC_SDATA 0x70000006 /* Short initialized data. */
1458 #define SHT_PARISC_SBSS 0x70000007 /* Short uninitialized data. */
1459 #define SHT_PARISC_SYMEXTN 0x70000008 /* Argument/relocation info. */
1460 #define SHT_PARISC_STUBS 0x70000009 /* Linker stubs. */
1461
1462 /* Legal values for sh_flags field of Elf32_Shdr. */
1463
1464 #define SHF_PARISC_GLOBAL 0x10000000 /* Section defines dp. */
1465 #define SHF_PARISC_SHORT 0x20000000 /* Section with short addressing. */
1466
1467 /* Legal values for ST_TYPE subfield of st_info (symbol type). */
1468
1469 #define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */
1470
1471 /* HPPA relocs. */
1472
1473 #define R_PARISC_NONE 0 /* No reloc. */
1474 #define R_PARISC_DIR32 1 /* Direct 32-bit reference. */
1475 #define R_PARISC_DIR21L 2 /* Left 21 bits of eff. address. */
1476 #define R_PARISC_DIR17R 3 /* Right 17 bits of eff. address. */
1477 #define R_PARISC_DIR14R 4 /* Right 14 bits of eff. address. */
1478 #define R_PARISC_PCREL21L 5 /* PC-relative, left 21 bits. */
1479 #define R_PARISC_PCREL14R 6 /* PC-relative, right 14 bits. */
1480 #define R_PARISC_PCREL17C 7 /* Conditional PC-relative, ignore
1481 if displacement > 17bits. */
1482 #define R_PARISC_PCREL17F 8 /* Conditional PC-relative, must
1483 fit in 17bits. */
1484 #define R_PARISC_DPREL21L 9 /* DP-relative, left 21 bits. */
1485 #define R_PARISC_DPREL14R 10 /* DP-relative, right 14 bits. */
1486 #define R_PARISC_DPREL14F 11 /* DP-relative, must bit in 14 bits. */
1487 #define R_PARISC_DLTREL21L 12 /* DLT-relative, left 21 bits. */
1488 #define R_PARISC_DLTREL14R 13 /* DLT-relative, right 14 bits. */
1489 #define R_PARISC_DLTREL14F 14 /* DLT-relative, must fit in 14 bits.*/
1490 #define R_PARISC_DLTIND21L 15 /* DLT-relative indirect, left
1491 21 bits. */
1492 #define R_PARISC_DLTIND14R 16 /* DLT-relative indirect, right
1493 14 bits. */
1494 #define R_PARISC_DLTIND14F 17 /* DLT-relative indirect, must fit
1495 int 14 bits. */
1496 #define R_PARISC_PLABEL32 18 /* Direct 32-bit reference to proc. */
1497
1498 /* Alpha specific definitions. */
1499
1500 /* Legal values for e_flags field of Elf64_Ehdr. */
1501
1502 #define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */
1503 #define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */
1504
1505 /* Legal values for sh_type field of Elf64_Shdr. */
1506
1507 /* These two are primerily concerned with ECOFF debugging info. */
1508 #define SHT_ALPHA_DEBUG 0x70000001
1509 #define SHT_ALPHA_REGINFO 0x70000002
1510
1511 /* Legal values for sh_flags field of Elf64_Shdr. */
1512
1513 #define SHF_ALPHA_GPREL 0x10000000
1514
1515 /* Legal values for st_other field of Elf64_Sym. */
1516 #define STO_ALPHA_NOPV 0x80 /* No PV required. */
1517 #define STO_ALPHA_STD_GPLOAD 0x88 /* PV only used for initial ldgp. */
1518
1519 /* Alpha relocs. */
1520
1521 #define R_ALPHA_NONE 0 /* No reloc */
1522 #define R_ALPHA_REFLONG 1 /* Direct 32 bit */
1523 #define R_ALPHA_REFQUAD 2 /* Direct 64 bit */
1524 #define R_ALPHA_GPREL32 3 /* GP relative 32 bit */
1525 #define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */
1526 #define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */
1527 #define R_ALPHA_GPDISP 6 /* Add displacement to GP */
1528 #define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */
1529 #define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */
1530 #define R_ALPHA_SREL16 9 /* PC relative 16 bit */
1531 #define R_ALPHA_SREL32 10 /* PC relative 32 bit */
1532 #define R_ALPHA_SREL64 11 /* PC relative 64 bit */
1533 #define R_ALPHA_OP_PUSH 12 /* OP stack push */
1534 #define R_ALPHA_OP_STORE 13 /* OP stack pop and store */
1535 #define R_ALPHA_OP_PSUB 14 /* OP stack subtract */
1536 #define R_ALPHA_OP_PRSHIFT 15 /* OP stack right shift */
1537 #define R_ALPHA_GPVALUE 16
1538 #define R_ALPHA_GPRELHIGH 17
1539 #define R_ALPHA_GPRELLOW 18
1540 #define R_ALPHA_IMMED_GP_16 19
1541 #define R_ALPHA_IMMED_GP_HI32 20
1542 #define R_ALPHA_IMMED_SCN_HI32 21
1543 #define R_ALPHA_IMMED_BR_HI32 22
1544 #define R_ALPHA_IMMED_LO32 23
1545 #define R_ALPHA_COPY 24 /* Copy symbol at runtime */
1546 #define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */
1547 #define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */
1548 #define R_ALPHA_RELATIVE 27 /* Adjust by program base */
1549 /* Keep this the last entry. */
1550 #define R_ALPHA_NUM 28
1551
1552
1553 /* PowerPC specific declarations */
1554
1555 /* PowerPC relocations defined by the ABIs */
1556 #define R_PPC_NONE 0
1557 #define R_PPC_ADDR32 1 /* 32bit absolute address */
1558 #define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */
1559 #define R_PPC_ADDR16 3 /* 16bit absolute address */
1560 #define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */
1561 #define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */
1562 #define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */
1563 #define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */
1564 #define R_PPC_ADDR14_BRTAKEN 8
1565 #define R_PPC_ADDR14_BRNTAKEN 9
1566 #define R_PPC_REL24 10 /* PC relative 26 bit */
1567 #define R_PPC_REL14 11 /* PC relative 16 bit */
1568 #define R_PPC_REL14_BRTAKEN 12
1569 #define R_PPC_REL14_BRNTAKEN 13
1570 #define R_PPC_GOT16 14
1571 #define R_PPC_GOT16_LO 15
1572 #define R_PPC_GOT16_HI 16
1573 #define R_PPC_GOT16_HA 17
1574 #define R_PPC_PLTREL24 18
1575 #define R_PPC_COPY 19
1576 #define R_PPC_GLOB_DAT 20
1577 #define R_PPC_JMP_SLOT 21
1578 #define R_PPC_RELATIVE 22
1579 #define R_PPC_LOCAL24PC 23
1580 #define R_PPC_UADDR32 24
1581 #define R_PPC_UADDR16 25
1582 #define R_PPC_REL32 26
1583 #define R_PPC_PLT32 27
1584 #define R_PPC_PLTREL32 28
1585 #define R_PPC_PLT16_LO 29
1586 #define R_PPC_PLT16_HI 30
1587 #define R_PPC_PLT16_HA 31
1588 #define R_PPC_SDAREL16 32
1589 #define R_PPC_SECTOFF 33
1590 #define R_PPC_SECTOFF_LO 34
1591 #define R_PPC_SECTOFF_HI 35
1592 #define R_PPC_SECTOFF_HA 36
1593 /* Keep this the last entry. */
1594 #define R_PPC_NUM 37
1595
1596 /* The remaining relocs are from the Embedded ELF ABI, and are not
1597 in the SVR4 ELF ABI. */
1598 #define R_PPC_EMB_NADDR32 101
1599 #define R_PPC_EMB_NADDR16 102
1600 #define R_PPC_EMB_NADDR16_LO 103
1601 #define R_PPC_EMB_NADDR16_HI 104
1602 #define R_PPC_EMB_NADDR16_HA 105
1603 #define R_PPC_EMB_SDAI16 106
1604 #define R_PPC_EMB_SDA2I16 107
1605 #define R_PPC_EMB_SDA2REL 108
1606 #define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */
1607 #define R_PPC_EMB_MRKREF 110
1608 #define R_PPC_EMB_RELSEC16 111
1609 #define R_PPC_EMB_RELST_LO 112
1610 #define R_PPC_EMB_RELST_HI 113
1611 #define R_PPC_EMB_RELST_HA 114
1612 #define R_PPC_EMB_BIT_FLD 115
1613 #define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */
1614
1615 /* Diab tool relocations. */
1616 #define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */
1617 #define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */
1618 #define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */
1619 #define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */
1620 #define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */
1621 #define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */
1622
1623 /* This is a phony reloc to handle any old fashioned TOC16 references
1624 that may still be in object files. */
1625 #define R_PPC_TOC16 255
1626
1627
1628 /* ARM specific declarations */
1629
1630 /* Processor specific flags for the ELF header e_flags field. */
1631 #define EF_ARM_RELEXEC 0x01
1632 #define EF_ARM_HASENTRY 0x02
1633 #define EF_ARM_INTERWORK 0x04
1634 #define EF_ARM_APCS_26 0x08
1635 #define EF_ARM_APCS_FLOAT 0x10
1636 #define EF_ARM_PIC 0x20
1637 #define EF_ALIGN8 0x40 /* 8-bit structure alignment is in use */
1638 #define EF_NEW_ABI 0x80
1639 #define EF_OLD_ABI 0x100
1640
1641 /* Additional symbol types for Thumb */
1642 #define STT_ARM_TFUNC 0xd
1643
1644 /* ARM-specific values for sh_flags */
1645 #define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */
1646 #define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined
1647 in the input to a link step */
1648
1649 /* ARM-specific program header flags */
1650 #define PF_ARM_SB 0x10000000 /* Segment contains the location
1651 addressed by the static base */
1652
1653 /* ARM relocs. */
1654 #define R_ARM_NONE 0 /* No reloc */
1655 #define R_ARM_PC24 1 /* PC relative 26 bit branch */
1656 #define R_ARM_ABS32 2 /* Direct 32 bit */
1657 #define R_ARM_REL32 3 /* PC relative 32 bit */
1658 #define R_ARM_PC13 4
1659 #define R_ARM_ABS16 5 /* Direct 16 bit */
1660 #define R_ARM_ABS12 6 /* Direct 12 bit */
1661 #define R_ARM_THM_ABS5 7
1662 #define R_ARM_ABS8 8 /* Direct 8 bit */
1663 #define R_ARM_SBREL32 9
1664 #define R_ARM_THM_PC22 10
1665 #define R_ARM_THM_PC8 11
1666 #define R_ARM_AMP_VCALL9 12
1667 #define R_ARM_SWI24 13
1668 #define R_ARM_THM_SWI8 14
1669 #define R_ARM_XPC25 15
1670 #define R_ARM_THM_XPC22 16
1671 #define R_ARM_COPY 20 /* Copy symbol at runtime */
1672 #define R_ARM_GLOB_DAT 21 /* Create GOT entry */
1673 #define R_ARM_JUMP_SLOT 22 /* Create PLT entry */
1674 #define R_ARM_RELATIVE 23 /* Adjust by program base */
1675 #define R_ARM_GOTOFF32 24 /* 32 bit offset to GOT */
1676 #define R_ARM_BASE_PREL 25 /* 32 bit PC relative offset to GOT */
1677 #define R_ARM_GOT_BREL 26 /* 32 bit GOT entry */
1678 #define R_ARM_PLT32 27 /* 32 bit PLT address */
1679 #define R_ARM_CALL 28
1680 #define R_ARM_JUMP24 29
1681 #define R_ARM_V4BX 40
1682 #define R_ARM_PREL31 42
1683 #define R_ARM_GNU_VTENTRY 100
1684 #define R_ARM_GNU_VTINHERIT 101
1685 #define R_ARM_THM_PC11 102 /* thumb unconditional branch */
1686 #define R_ARM_THM_PC9 103 /* thumb conditional branch */
1687 #define R_ARM_RXPC25 249
1688 #define R_ARM_RSBREL32 250
1689 #define R_ARM_THM_RPC22 251
1690 #define R_ARM_RREL32 252
1691 #define R_ARM_RABS22 253
1692 #define R_ARM_RPC24 254
1693 #define R_ARM_RBASE 255
1694 /* Keep this the last entry. */
1695 #define R_ARM_NUM 256
1696
1697 /* TMS320C67xx specific declarations */
1698 /* XXX: no ELF standard yet */
1699
1700 /* TMS320C67xx relocs. */
1701 #define R_C60_32 1
1702 #define R_C60_GOT32 3 /* 32 bit GOT entry */
1703 #define R_C60_PLT32 4 /* 32 bit PLT address */
1704 #define R_C60_COPY 5 /* Copy symbol at runtime */
1705 #define R_C60_GLOB_DAT 6 /* Create GOT entry */
1706 #define R_C60_JMP_SLOT 7 /* Create PLT entry */
1707 #define R_C60_RELATIVE 8 /* Adjust by program base */
1708 #define R_C60_GOTOFF 9 /* 32 bit offset to GOT */
1709 #define R_C60_GOTPC 10 /* 32 bit PC relative offset to GOT */
1710
1711 #define R_C60HI16 0x55 // high 16 bit MVKH embedded
1712 #define R_C60LO16 0x54 // low 16 bit MVKL embedded
1713
1714 #ifdef TCC_TARGET_X86_64
1715 #define TCC_ELFCLASS ELFCLASS64
1716 #define ElfW(type) Elf##64##_##type
1717 #define ELFW(type) ELF##64##_##type
1718 #else
1719 #define TCC_ELFCLASS ELFCLASS32
1720 #define ElfW(type) Elf##32##_##type
1721 #define ELFW(type) ELF##32##_##type
1722 #endif
1723
1724 #endif /* elf.h */
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