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arc: hard-code CONFIG_SYS_GENERIC_BOARD into asm/config.h
[people/ms/u-boot.git] / include / elf.h
1 /*
2 * Copyright (c) 1995, 1996, 2001, 2002
3 * Erik Theisen. All rights reserved.
4 *
5 * SPDX-License-Identifier: BSD-3-Clause
6 */
7
8 /*
9 * This is the ELF ABI header file
10 * formerly known as "elf_abi.h".
11 */
12
13 #ifndef _ELF_H
14 #define _ELF_H
15
16 #include "compiler.h"
17
18 /*
19 * This version doesn't work for 64-bit ABIs - Erik.
20 */
21
22 /*
23 * These typedefs need to be handled better.
24 */
25 typedef uint32_t Elf32_Addr; /* Unsigned program address */
26 typedef uint32_t Elf32_Off; /* Unsigned file offset */
27 typedef int32_t Elf32_Sword; /* Signed large integer */
28 typedef uint32_t Elf32_Word; /* Unsigned large integer */
29 typedef uint16_t Elf32_Half; /* Unsigned medium integer */
30
31 /* e_ident[] identification indexes */
32 #define EI_MAG0 0 /* file ID */
33 #define EI_MAG1 1 /* file ID */
34 #define EI_MAG2 2 /* file ID */
35 #define EI_MAG3 3 /* file ID */
36 #define EI_CLASS 4 /* file class */
37 #define EI_DATA 5 /* data encoding */
38 #define EI_VERSION 6 /* ELF header version */
39 #define EI_OSABI 7 /* OS/ABI specific ELF extensions */
40 #define EI_ABIVERSION 8 /* ABI target version */
41 #define EI_PAD 9 /* start of pad bytes */
42 #define EI_NIDENT 16 /* Size of e_ident[] */
43
44 /* e_ident[] magic number */
45 #define ELFMAG0 0x7f /* e_ident[EI_MAG0] */
46 #define ELFMAG1 'E' /* e_ident[EI_MAG1] */
47 #define ELFMAG2 'L' /* e_ident[EI_MAG2] */
48 #define ELFMAG3 'F' /* e_ident[EI_MAG3] */
49 #define ELFMAG "\177ELF" /* magic */
50 #define SELFMAG 4 /* size of magic */
51
52 /* e_ident[] file class */
53 #define ELFCLASSNONE 0 /* invalid */
54 #define ELFCLASS32 1 /* 32-bit objs */
55 #define ELFCLASS64 2 /* 64-bit objs */
56 #define ELFCLASSNUM 3 /* number of classes */
57
58 /* e_ident[] data encoding */
59 #define ELFDATANONE 0 /* invalid */
60 #define ELFDATA2LSB 1 /* Little-Endian */
61 #define ELFDATA2MSB 2 /* Big-Endian */
62 #define ELFDATANUM 3 /* number of data encode defines */
63
64 /* e_ident[] OS/ABI specific ELF extensions */
65 #define ELFOSABI_NONE 0 /* No extension specified */
66 #define ELFOSABI_HPUX 1 /* Hewlett-Packard HP-UX */
67 #define ELFOSABI_NETBSD 2 /* NetBSD */
68 #define ELFOSABI_LINUX 3 /* Linux */
69 #define ELFOSABI_SOLARIS 6 /* Sun Solaris */
70 #define ELFOSABI_AIX 7 /* AIX */
71 #define ELFOSABI_IRIX 8 /* IRIX */
72 #define ELFOSABI_FREEBSD 9 /* FreeBSD */
73 #define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX */
74 #define ELFOSABI_MODESTO 11 /* Novell Modesto */
75 #define ELFOSABI_OPENBSD 12 /* OpenBSD */
76 /* 64-255 Architecture-specific value range */
77
78 /* e_ident[] ABI Version */
79 #define ELFABIVERSION 0
80
81 /* e_ident */
82 #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
83 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
84 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
85 (ehdr).e_ident[EI_MAG3] == ELFMAG3)
86
87 /* ELF Header */
88 typedef struct elfhdr{
89 unsigned char e_ident[EI_NIDENT]; /* ELF Identification */
90 Elf32_Half e_type; /* object file type */
91 Elf32_Half e_machine; /* machine */
92 Elf32_Word e_version; /* object file version */
93 Elf32_Addr e_entry; /* virtual entry point */
94 Elf32_Off e_phoff; /* program header table offset */
95 Elf32_Off e_shoff; /* section header table offset */
96 Elf32_Word e_flags; /* processor-specific flags */
97 Elf32_Half e_ehsize; /* ELF header size */
98 Elf32_Half e_phentsize; /* program header entry size */
99 Elf32_Half e_phnum; /* number of program header entries */
100 Elf32_Half e_shentsize; /* section header entry size */
101 Elf32_Half e_shnum; /* number of section header entries */
102 Elf32_Half e_shstrndx; /* section header table's "section
103 header string table" entry offset */
104 } Elf32_Ehdr;
105
106 /* e_type */
107 #define ET_NONE 0 /* No file type */
108 #define ET_REL 1 /* relocatable file */
109 #define ET_EXEC 2 /* executable file */
110 #define ET_DYN 3 /* shared object file */
111 #define ET_CORE 4 /* core file */
112 #define ET_NUM 5 /* number of types */
113 #define ET_LOOS 0xfe00 /* reserved range for operating */
114 #define ET_HIOS 0xfeff /* system specific e_type */
115 #define ET_LOPROC 0xff00 /* reserved range for processor */
116 #define ET_HIPROC 0xffff /* specific e_type */
117
118 /* e_machine */
119 #define EM_NONE 0 /* No Machine */
120 #define EM_M32 1 /* AT&T WE 32100 */
121 #define EM_SPARC 2 /* SPARC */
122 #define EM_386 3 /* Intel 80386 */
123 #define EM_68K 4 /* Motorola 68000 */
124 #define EM_88K 5 /* Motorola 88000 */
125 #if 0
126 #define EM_486 6 /* RESERVED - was Intel 80486 */
127 #endif
128 #define EM_860 7 /* Intel 80860 */
129 #define EM_MIPS 8 /* MIPS R3000 Big-Endian only */
130 #define EM_S370 9 /* IBM System/370 Processor */
131 #define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */
132 #if 0
133 #define EM_SPARC64 11 /* RESERVED - was SPARC v9
134 64-bit unoffical */
135 #endif
136 /* RESERVED 11-14 for future use */
137 #define EM_PARISC 15 /* HPPA */
138 /* RESERVED 16 for future use */
139 #define EM_VPP500 17 /* Fujitsu VPP500 */
140 #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
141 #define EM_960 19 /* Intel 80960 */
142 #define EM_PPC 20 /* PowerPC */
143 #define EM_PPC64 21 /* 64-bit PowerPC */
144 #define EM_S390 22 /* IBM System/390 Processor */
145 /* RESERVED 23-35 for future use */
146 #define EM_V800 36 /* NEC V800 */
147 #define EM_FR20 37 /* Fujitsu FR20 */
148 #define EM_RH32 38 /* TRW RH-32 */
149 #define EM_RCE 39 /* Motorola RCE */
150 #define EM_ARM 40 /* Advanced Risc Machines ARM */
151 #define EM_ALPHA 41 /* Digital Alpha */
152 #define EM_SH 42 /* Hitachi SH */
153 #define EM_SPARCV9 43 /* SPARC Version 9 */
154 #define EM_TRICORE 44 /* Siemens TriCore embedded processor */
155 #define EM_ARC 45 /* Argonaut RISC Core */
156 #define EM_H8_300 46 /* Hitachi H8/300 */
157 #define EM_H8_300H 47 /* Hitachi H8/300H */
158 #define EM_H8S 48 /* Hitachi H8S */
159 #define EM_H8_500 49 /* Hitachi H8/500 */
160 #define EM_IA_64 50 /* Intel Merced */
161 #define EM_MIPS_X 51 /* Stanford MIPS-X */
162 #define EM_COLDFIRE 52 /* Motorola Coldfire */
163 #define EM_68HC12 53 /* Motorola M68HC12 */
164 #define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/
165 #define EM_PCP 55 /* Siemens PCP */
166 #define EM_NCPU 56 /* Sony nCPU embeeded RISC */
167 #define EM_NDR1 57 /* Denso NDR1 microprocessor */
168 #define EM_STARCORE 58 /* Motorola Start*Core processor */
169 #define EM_ME16 59 /* Toyota ME16 processor */
170 #define EM_ST100 60 /* STMicroelectronic ST100 processor */
171 #define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/
172 #define EM_X86_64 62 /* AMD x86-64 */
173 #define EM_PDSP 63 /* Sony DSP Processor */
174 /* RESERVED 64,65 for future use */
175 #define EM_FX66 66 /* Siemens FX66 microcontroller */
176 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */
177 #define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */
178 #define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */
179 #define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */
180 #define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */
181 #define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */
182 #define EM_SVX 73 /* Silicon Graphics SVx */
183 #define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */
184 #define EM_VAX 75 /* Digital VAX */
185 #define EM_CHRIS 76 /* Axis Communications embedded proc. */
186 #define EM_JAVELIN 77 /* Infineon Technologies emb. proc. */
187 #define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */
188 #define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */
189 #define EM_MMIX 80 /* Donald Knuth's edu 64-bit proc. */
190 #define EM_HUANY 81 /* Harvard University mach-indep objs */
191 #define EM_PRISM 82 /* SiTera Prism */
192 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
193 #define EM_FR30 84 /* Fujitsu FR30 */
194 #define EM_D10V 85 /* Mitsubishi DV10V */
195 #define EM_D30V 86 /* Mitsubishi DV30V */
196 #define EM_V850 87 /* NEC v850 */
197 #define EM_M32R 88 /* Mitsubishi M32R */
198 #define EM_MN10300 89 /* Matsushita MN10200 */
199 #define EM_MN10200 90 /* Matsushita MN10200 */
200 #define EM_PJ 91 /* picoJava */
201 #define EM_NUM 92 /* number of machine types */
202
203 /* Version */
204 #define EV_NONE 0 /* Invalid */
205 #define EV_CURRENT 1 /* Current */
206 #define EV_NUM 2 /* number of versions */
207
208 /* Section Header */
209 typedef struct {
210 Elf32_Word sh_name; /* name - index into section header
211 string table section */
212 Elf32_Word sh_type; /* type */
213 Elf32_Word sh_flags; /* flags */
214 Elf32_Addr sh_addr; /* address */
215 Elf32_Off sh_offset; /* file offset */
216 Elf32_Word sh_size; /* section size */
217 Elf32_Word sh_link; /* section header table index link */
218 Elf32_Word sh_info; /* extra information */
219 Elf32_Word sh_addralign; /* address alignment */
220 Elf32_Word sh_entsize; /* section entry size */
221 } Elf32_Shdr;
222
223 /* Special Section Indexes */
224 #define SHN_UNDEF 0 /* undefined */
225 #define SHN_LORESERVE 0xff00 /* lower bounds of reserved indexes */
226 #define SHN_LOPROC 0xff00 /* reserved range for processor */
227 #define SHN_HIPROC 0xff1f /* specific section indexes */
228 #define SHN_LOOS 0xff20 /* reserved range for operating */
229 #define SHN_HIOS 0xff3f /* specific semantics */
230 #define SHN_ABS 0xfff1 /* absolute value */
231 #define SHN_COMMON 0xfff2 /* common symbol */
232 #define SHN_XINDEX 0xffff /* Index is an extra table */
233 #define SHN_HIRESERVE 0xffff /* upper bounds of reserved indexes */
234
235 /* sh_type */
236 #define SHT_NULL 0 /* inactive */
237 #define SHT_PROGBITS 1 /* program defined information */
238 #define SHT_SYMTAB 2 /* symbol table section */
239 #define SHT_STRTAB 3 /* string table section */
240 #define SHT_RELA 4 /* relocation section with addends*/
241 #define SHT_HASH 5 /* symbol hash table section */
242 #define SHT_DYNAMIC 6 /* dynamic section */
243 #define SHT_NOTE 7 /* note section */
244 #define SHT_NOBITS 8 /* no space section */
245 #define SHT_REL 9 /* relation section without addends */
246 #define SHT_SHLIB 10 /* reserved - purpose unknown */
247 #define SHT_DYNSYM 11 /* dynamic symbol table section */
248 #define SHT_INIT_ARRAY 14 /* Array of constructors */
249 #define SHT_FINI_ARRAY 15 /* Array of destructors */
250 #define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */
251 #define SHT_GROUP 17 /* Section group */
252 #define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */
253 #define SHT_NUM 19 /* number of section types */
254 #define SHT_LOOS 0x60000000 /* Start OS-specific */
255 #define SHT_HIOS 0x6fffffff /* End OS-specific */
256 #define SHT_LOPROC 0x70000000 /* reserved range for processor */
257 #define SHT_HIPROC 0x7fffffff /* specific section header types */
258 #define SHT_LOUSER 0x80000000 /* reserved range for application */
259 #define SHT_HIUSER 0xffffffff /* specific indexes */
260
261 /* Section names */
262 #define ELF_BSS ".bss" /* uninitialized data */
263 #define ELF_COMMENT ".comment" /* version control information */
264 #define ELF_DATA ".data" /* initialized data */
265 #define ELF_DATA1 ".data1" /* initialized data */
266 #define ELF_DEBUG ".debug" /* debug */
267 #define ELF_DYNAMIC ".dynamic" /* dynamic linking information */
268 #define ELF_DYNSTR ".dynstr" /* dynamic string table */
269 #define ELF_DYNSYM ".dynsym" /* dynamic symbol table */
270 #define ELF_FINI ".fini" /* termination code */
271 #define ELF_FINI_ARRAY ".fini_array" /* Array of destructors */
272 #define ELF_GOT ".got" /* global offset table */
273 #define ELF_HASH ".hash" /* symbol hash table */
274 #define ELF_INIT ".init" /* initialization code */
275 #define ELF_INIT_ARRAY ".init_array" /* Array of constuctors */
276 #define ELF_INTERP ".interp" /* Pathname of program interpreter */
277 #define ELF_LINE ".line" /* Symbolic line numnber information */
278 #define ELF_NOTE ".note" /* Contains note section */
279 #define ELF_PLT ".plt" /* Procedure linkage table */
280 #define ELF_PREINIT_ARRAY ".preinit_array" /* Array of pre-constructors */
281 #define ELF_REL_DATA ".rel.data" /* relocation data */
282 #define ELF_REL_FINI ".rel.fini" /* relocation termination code */
283 #define ELF_REL_INIT ".rel.init" /* relocation initialization code */
284 #define ELF_REL_DYN ".rel.dyn" /* relocaltion dynamic link info */
285 #define ELF_REL_RODATA ".rel.rodata" /* relocation read-only data */
286 #define ELF_REL_TEXT ".rel.text" /* relocation code */
287 #define ELF_RODATA ".rodata" /* read-only data */
288 #define ELF_RODATA1 ".rodata1" /* read-only data */
289 #define ELF_SHSTRTAB ".shstrtab" /* section header string table */
290 #define ELF_STRTAB ".strtab" /* string table */
291 #define ELF_SYMTAB ".symtab" /* symbol table */
292 #define ELF_SYMTAB_SHNDX ".symtab_shndx"/* symbol table section index */
293 #define ELF_TBSS ".tbss" /* thread local uninit data */
294 #define ELF_TDATA ".tdata" /* thread local init data */
295 #define ELF_TDATA1 ".tdata1" /* thread local init data */
296 #define ELF_TEXT ".text" /* code */
297
298 /* Section Attribute Flags - sh_flags */
299 #define SHF_WRITE 0x1 /* Writable */
300 #define SHF_ALLOC 0x2 /* occupies memory */
301 #define SHF_EXECINSTR 0x4 /* executable */
302 #define SHF_MERGE 0x10 /* Might be merged */
303 #define SHF_STRINGS 0x20 /* Contains NULL terminated strings */
304 #define SHF_INFO_LINK 0x40 /* sh_info contains SHT index */
305 #define SHF_LINK_ORDER 0x80 /* Preserve order after combining*/
306 #define SHF_OS_NONCONFORMING 0x100 /* Non-standard OS specific handling */
307 #define SHF_GROUP 0x200 /* Member of section group */
308 #define SHF_TLS 0x400 /* Thread local storage */
309 #define SHF_MASKOS 0x0ff00000 /* OS specific */
310 #define SHF_MASKPROC 0xf0000000 /* reserved bits for processor */
311 /* specific section attributes */
312
313 /* Section Group Flags */
314 #define GRP_COMDAT 0x1 /* COMDAT group */
315 #define GRP_MASKOS 0x0ff00000 /* Mask OS specific flags */
316 #define GRP_MASKPROC 0xf0000000 /* Mask processor specific flags */
317
318 /* Symbol Table Entry */
319 typedef struct elf32_sym {
320 Elf32_Word st_name; /* name - index into string table */
321 Elf32_Addr st_value; /* symbol value */
322 Elf32_Word st_size; /* symbol size */
323 unsigned char st_info; /* type and binding */
324 unsigned char st_other; /* 0 - no defined meaning */
325 Elf32_Half st_shndx; /* section header index */
326 } Elf32_Sym;
327
328 /* Symbol table index */
329 #define STN_UNDEF 0 /* undefined */
330
331 /* Extract symbol info - st_info */
332 #define ELF32_ST_BIND(x) ((x) >> 4)
333 #define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf)
334 #define ELF32_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
335 #define ELF32_ST_VISIBILITY(x) ((x) & 0x3)
336
337 /* Symbol Binding - ELF32_ST_BIND - st_info */
338 #define STB_LOCAL 0 /* Local symbol */
339 #define STB_GLOBAL 1 /* Global symbol */
340 #define STB_WEAK 2 /* like global - lower precedence */
341 #define STB_NUM 3 /* number of symbol bindings */
342 #define STB_LOOS 10 /* reserved range for operating */
343 #define STB_HIOS 12 /* system specific symbol bindings */
344 #define STB_LOPROC 13 /* reserved range for processor */
345 #define STB_HIPROC 15 /* specific symbol bindings */
346
347 /* Symbol type - ELF32_ST_TYPE - st_info */
348 #define STT_NOTYPE 0 /* not specified */
349 #define STT_OBJECT 1 /* data object */
350 #define STT_FUNC 2 /* function */
351 #define STT_SECTION 3 /* section */
352 #define STT_FILE 4 /* file */
353 #define STT_NUM 5 /* number of symbol types */
354 #define STT_TLS 6 /* Thread local storage symbol */
355 #define STT_LOOS 10 /* reserved range for operating */
356 #define STT_HIOS 12 /* system specific symbol types */
357 #define STT_LOPROC 13 /* reserved range for processor */
358 #define STT_HIPROC 15 /* specific symbol types */
359
360 /* Symbol visibility - ELF32_ST_VISIBILITY - st_other */
361 #define STV_DEFAULT 0 /* Normal visibility rules */
362 #define STV_INTERNAL 1 /* Processor specific hidden class */
363 #define STV_HIDDEN 2 /* Symbol unavailable in other mods */
364 #define STV_PROTECTED 3 /* Not preemptible, not exported */
365
366
367 /* Relocation entry with implicit addend */
368 typedef struct
369 {
370 Elf32_Addr r_offset; /* offset of relocation */
371 Elf32_Word r_info; /* symbol table index and type */
372 } Elf32_Rel;
373
374 /* Relocation entry with explicit addend */
375 typedef struct
376 {
377 Elf32_Addr r_offset; /* offset of relocation */
378 Elf32_Word r_info; /* symbol table index and type */
379 Elf32_Sword r_addend;
380 } Elf32_Rela;
381
382 /* Extract relocation info - r_info */
383 #define ELF32_R_SYM(i) ((i) >> 8)
384 #define ELF32_R_TYPE(i) ((unsigned char) (i))
385 #define ELF32_R_INFO(s,t) (((s) << 8) + (unsigned char)(t))
386
387 /* Program Header */
388 typedef struct {
389 Elf32_Word p_type; /* segment type */
390 Elf32_Off p_offset; /* segment offset */
391 Elf32_Addr p_vaddr; /* virtual address of segment */
392 Elf32_Addr p_paddr; /* physical address - ignored? */
393 Elf32_Word p_filesz; /* number of bytes in file for seg. */
394 Elf32_Word p_memsz; /* number of bytes in mem. for seg. */
395 Elf32_Word p_flags; /* flags */
396 Elf32_Word p_align; /* memory alignment */
397 } Elf32_Phdr;
398
399 /* Segment types - p_type */
400 #define PT_NULL 0 /* unused */
401 #define PT_LOAD 1 /* loadable segment */
402 #define PT_DYNAMIC 2 /* dynamic linking section */
403 #define PT_INTERP 3 /* the RTLD */
404 #define PT_NOTE 4 /* auxiliary information */
405 #define PT_SHLIB 5 /* reserved - purpose undefined */
406 #define PT_PHDR 6 /* program header */
407 #define PT_TLS 7 /* Thread local storage template */
408 #define PT_NUM 8 /* Number of segment types */
409 #define PT_LOOS 0x60000000 /* reserved range for operating */
410 #define PT_HIOS 0x6fffffff /* system specific segment types */
411 #define PT_LOPROC 0x70000000 /* reserved range for processor */
412 #define PT_HIPROC 0x7fffffff /* specific segment types */
413
414 /* Segment flags - p_flags */
415 #define PF_X 0x1 /* Executable */
416 #define PF_W 0x2 /* Writable */
417 #define PF_R 0x4 /* Readable */
418 #define PF_MASKOS 0x0ff00000 /* OS specific segment flags */
419 #define PF_MASKPROC 0xf0000000 /* reserved bits for processor */
420 /* specific segment flags */
421 /* Dynamic structure */
422 typedef struct
423 {
424 Elf32_Sword d_tag; /* controls meaning of d_val */
425 union
426 {
427 Elf32_Word d_val; /* Multiple meanings - see d_tag */
428 Elf32_Addr d_ptr; /* program virtual address */
429 } d_un;
430 } Elf32_Dyn;
431
432 extern Elf32_Dyn _DYNAMIC[];
433
434 /* Dynamic Array Tags - d_tag */
435 #define DT_NULL 0 /* marks end of _DYNAMIC array */
436 #define DT_NEEDED 1 /* string table offset of needed lib */
437 #define DT_PLTRELSZ 2 /* size of relocation entries in PLT */
438 #define DT_PLTGOT 3 /* address PLT/GOT */
439 #define DT_HASH 4 /* address of symbol hash table */
440 #define DT_STRTAB 5 /* address of string table */
441 #define DT_SYMTAB 6 /* address of symbol table */
442 #define DT_RELA 7 /* address of relocation table */
443 #define DT_RELASZ 8 /* size of relocation table */
444 #define DT_RELAENT 9 /* size of relocation entry */
445 #define DT_STRSZ 10 /* size of string table */
446 #define DT_SYMENT 11 /* size of symbol table entry */
447 #define DT_INIT 12 /* address of initialization func. */
448 #define DT_FINI 13 /* address of termination function */
449 #define DT_SONAME 14 /* string table offset of shared obj */
450 #define DT_RPATH 15 /* string table offset of library
451 search path */
452 #define DT_SYMBOLIC 16 /* start sym search in shared obj. */
453 #define DT_REL 17 /* address of rel. tbl. w addends */
454 #define DT_RELSZ 18 /* size of DT_REL relocation table */
455 #define DT_RELENT 19 /* size of DT_REL relocation entry */
456 #define DT_PLTREL 20 /* PLT referenced relocation entry */
457 #define DT_DEBUG 21 /* bugger */
458 #define DT_TEXTREL 22 /* Allow rel. mod. to unwritable seg */
459 #define DT_JMPREL 23 /* add. of PLT's relocation entries */
460 #define DT_BIND_NOW 24 /* Process relocations of object */
461 #define DT_INIT_ARRAY 25 /* Array with addresses of init fct */
462 #define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */
463 #define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */
464 #define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */
465 #define DT_RUNPATH 29 /* Library search path */
466 #define DT_FLAGS 30 /* Flags for the object being loaded */
467 #define DT_ENCODING 32 /* Start of encoded range */
468 #define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/
469 #define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */
470 #define DT_NUM 34 /* Number used. */
471 #define DT_LOOS 0x60000000 /* reserved range for OS */
472 #define DT_HIOS 0x6fffffff /* specific dynamic array tags */
473 #define DT_LOPROC 0x70000000 /* reserved range for processor */
474 #define DT_HIPROC 0x7fffffff /* specific dynamic array tags */
475
476 /* Dynamic Tag Flags - d_un.d_val */
477 #define DF_ORIGIN 0x01 /* Object may use DF_ORIGIN */
478 #define DF_SYMBOLIC 0x02 /* Symbol resolutions starts here */
479 #define DF_TEXTREL 0x04 /* Object contains text relocations */
480 #define DF_BIND_NOW 0x08 /* No lazy binding for this object */
481 #define DF_STATIC_TLS 0x10 /* Static thread local storage */
482
483 /* Standard ELF hashing function */
484 unsigned long elf_hash(const unsigned char *name);
485
486 #define ELF_TARG_VER 1 /* The ver for which this code is intended */
487
488 /*
489 * XXX - PowerPC defines really don't belong in here,
490 * but we'll put them in for simplicity.
491 */
492
493 /* Values for Elf32/64_Ehdr.e_flags. */
494 #define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */
495
496 /* Cygnus local bits below */
497 #define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/
498 #define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib
499 flag */
500
501 /* PowerPC relocations defined by the ABIs */
502 #define R_PPC_NONE 0
503 #define R_PPC_ADDR32 1 /* 32bit absolute address */
504 #define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */
505 #define R_PPC_ADDR16 3 /* 16bit absolute address */
506 #define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */
507 #define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */
508 #define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */
509 #define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */
510 #define R_PPC_ADDR14_BRTAKEN 8
511 #define R_PPC_ADDR14_BRNTAKEN 9
512 #define R_PPC_REL24 10 /* PC relative 26 bit */
513 #define R_PPC_REL14 11 /* PC relative 16 bit */
514 #define R_PPC_REL14_BRTAKEN 12
515 #define R_PPC_REL14_BRNTAKEN 13
516 #define R_PPC_GOT16 14
517 #define R_PPC_GOT16_LO 15
518 #define R_PPC_GOT16_HI 16
519 #define R_PPC_GOT16_HA 17
520 #define R_PPC_PLTREL24 18
521 #define R_PPC_COPY 19
522 #define R_PPC_GLOB_DAT 20
523 #define R_PPC_JMP_SLOT 21
524 #define R_PPC_RELATIVE 22
525 #define R_PPC_LOCAL24PC 23
526 #define R_PPC_UADDR32 24
527 #define R_PPC_UADDR16 25
528 #define R_PPC_REL32 26
529 #define R_PPC_PLT32 27
530 #define R_PPC_PLTREL32 28
531 #define R_PPC_PLT16_LO 29
532 #define R_PPC_PLT16_HI 30
533 #define R_PPC_PLT16_HA 31
534 #define R_PPC_SDAREL16 32
535 #define R_PPC_SECTOFF 33
536 #define R_PPC_SECTOFF_LO 34
537 #define R_PPC_SECTOFF_HI 35
538 #define R_PPC_SECTOFF_HA 36
539 /* Keep this the last entry. */
540 #define R_PPC_NUM 37
541
542 /* The remaining relocs are from the Embedded ELF ABI, and are not
543 in the SVR4 ELF ABI. */
544 #define R_PPC_EMB_NADDR32 101
545 #define R_PPC_EMB_NADDR16 102
546 #define R_PPC_EMB_NADDR16_LO 103
547 #define R_PPC_EMB_NADDR16_HI 104
548 #define R_PPC_EMB_NADDR16_HA 105
549 #define R_PPC_EMB_SDAI16 106
550 #define R_PPC_EMB_SDA2I16 107
551 #define R_PPC_EMB_SDA2REL 108
552 #define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */
553 #define R_PPC_EMB_MRKREF 110
554 #define R_PPC_EMB_RELSEC16 111
555 #define R_PPC_EMB_RELST_LO 112
556 #define R_PPC_EMB_RELST_HI 113
557 #define R_PPC_EMB_RELST_HA 114
558 #define R_PPC_EMB_BIT_FLD 115
559 #define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */
560
561 /* Diab tool relocations. */
562 #define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */
563 #define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */
564 #define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */
565 #define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */
566 #define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */
567 #define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */
568
569 /* This is a phony reloc to handle any old fashioned TOC16 references
570 that may still be in object files. */
571 #define R_PPC_TOC16 255
572
573 int valid_elf_image(unsigned long addr);
574
575 #endif /* _ELF_H */
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