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 */ 25typedef uint32_t Elf32_Addr; /* Unsigned program address */ 26typedef uint32_t Elf32_Off; /* Unsigned file offset */ 27typedef int32_t Elf32_Sword; /* Signed large integer */ 28typedef uint32_t Elf32_Word; /* Unsigned large integer */ 29typedef uint16_t Elf32_Half; /* Unsigned medium integer */ 30 31/* 64-bit ELF base types. */ 32typedef uint64_t Elf64_Addr; 33typedef uint16_t Elf64_Half; 34typedef int16_t Elf64_SHalf; 35typedef uint64_t Elf64_Off; 36typedef int32_t Elf64_Sword; 37typedef uint32_t Elf64_Word; 38typedef uint64_t Elf64_Xword; 39typedef int64_t Elf64_Sxword; 40 41/* e_ident[] identification indexes */ 42#define EI_MAG0 0 /* file ID */ 43#define EI_MAG1 1 /* file ID */ 44#define EI_MAG2 2 /* file ID */ 45#define EI_MAG3 3 /* file ID */ 46#define EI_CLASS 4 /* file class */ 47#define EI_DATA 5 /* data encoding */ 48#define EI_VERSION 6 /* ELF header version */ 49#define EI_OSABI 7 /* OS/ABI specific ELF extensions */ 50#define EI_ABIVERSION 8 /* ABI target version */ 51#define EI_PAD 9 /* start of pad bytes */ 52#define EI_NIDENT 16 /* Size of e_ident[] */ 53 54/* e_ident[] magic number */ 55#define ELFMAG0 0x7f /* e_ident[EI_MAG0] */ 56#define ELFMAG1 'E' /* e_ident[EI_MAG1] */ 57#define ELFMAG2 'L' /* e_ident[EI_MAG2] */ 58#define ELFMAG3 'F' /* e_ident[EI_MAG3] */ 59#define ELFMAG "\177ELF" /* magic */ 60#define SELFMAG 4 /* size of magic */ 61 62/* e_ident[] file class */ 63#define ELFCLASSNONE 0 /* invalid */ 64#define ELFCLASS32 1 /* 32-bit objs */ 65#define ELFCLASS64 2 /* 64-bit objs */ 66#define ELFCLASSNUM 3 /* number of classes */ 67 68/* e_ident[] data encoding */ 69#define ELFDATANONE 0 /* invalid */ 70#define ELFDATA2LSB 1 /* Little-Endian */ 71#define ELFDATA2MSB 2 /* Big-Endian */ 72#define ELFDATANUM 3 /* number of data encode defines */ 73 74/* e_ident[] OS/ABI specific ELF extensions */ 75#define ELFOSABI_NONE 0 /* No extension specified */ 76#define ELFOSABI_HPUX 1 /* Hewlett-Packard HP-UX */ 77#define ELFOSABI_NETBSD 2 /* NetBSD */ 78#define ELFOSABI_LINUX 3 /* Linux */ 79#define ELFOSABI_SOLARIS 6 /* Sun Solaris */ 80#define ELFOSABI_AIX 7 /* AIX */ 81#define ELFOSABI_IRIX 8 /* IRIX */ 82#define ELFOSABI_FREEBSD 9 /* FreeBSD */ 83#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX */ 84#define ELFOSABI_MODESTO 11 /* Novell Modesto */ 85#define ELFOSABI_OPENBSD 12 /* OpenBSD */ 86/* 64-255 Architecture-specific value range */ 87 88/* e_ident[] ABI Version */ 89#define ELFABIVERSION 0 90 91/* e_ident */ 92#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \ 93 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \ 94 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \ 95 (ehdr).e_ident[EI_MAG3] == ELFMAG3) 96 97/* ELF Header */ 98typedef struct elfhdr{ 99 unsigned char e_ident[EI_NIDENT]; /* ELF Identification */ 100 Elf32_Half e_type; /* object file type */ 101 Elf32_Half e_machine; /* machine */ 102 Elf32_Word e_version; /* object file version */ 103 Elf32_Addr e_entry; /* virtual entry point */ 104 Elf32_Off e_phoff; /* program header table offset */ 105 Elf32_Off e_shoff; /* section header table offset */ 106 Elf32_Word e_flags; /* processor-specific flags */ 107 Elf32_Half e_ehsize; /* ELF header size */ 108 Elf32_Half e_phentsize; /* program header entry size */ 109 Elf32_Half e_phnum; /* number of program header entries */ 110 Elf32_Half e_shentsize; /* section header entry size */ 111 Elf32_Half e_shnum; /* number of section header entries */ 112 Elf32_Half e_shstrndx; /* section header table's "section 113 header string table" entry offset */ 114} Elf32_Ehdr; 115 116/* e_type */ 117#define ET_NONE 0 /* No file type */ 118#define ET_REL 1 /* relocatable file */ 119#define ET_EXEC 2 /* executable file */ 120#define ET_DYN 3 /* shared object file */ 121#define ET_CORE 4 /* core file */ 122#define ET_NUM 5 /* number of types */ 123#define ET_LOOS 0xfe00 /* reserved range for operating */ 124#define ET_HIOS 0xfeff /* system specific e_type */ 125#define ET_LOPROC 0xff00 /* reserved range for processor */ 126#define ET_HIPROC 0xffff /* specific e_type */ 127 128/* e_machine */ 129#define EM_NONE 0 /* No Machine */ 130#define EM_M32 1 /* AT&T WE 32100 */ 131#define EM_SPARC 2 /* SPARC */ 132#define EM_386 3 /* Intel 80386 */ 133#define EM_68K 4 /* Motorola 68000 */ 134#define EM_88K 5 /* Motorola 88000 */ 135#if 0 136#define EM_486 6 /* RESERVED - was Intel 80486 */ 137#endif 138#define EM_860 7 /* Intel 80860 */ 139#define EM_MIPS 8 /* MIPS R3000 Big-Endian only */ 140#define EM_S370 9 /* IBM System/370 Processor */ 141#define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */ 142#if 0 143#define EM_SPARC64 11 /* RESERVED - was SPARC v9 144 64-bit unoffical */ 145#endif 146/* RESERVED 11-14 for future use */ 147#define EM_PARISC 15 /* HPPA */ 148/* RESERVED 16 for future use */ 149#define EM_VPP500 17 /* Fujitsu VPP500 */ 150#define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */ 151#define EM_960 19 /* Intel 80960 */ 152#define EM_PPC 20 /* PowerPC */ 153#define EM_PPC64 21 /* 64-bit PowerPC */ 154#define EM_S390 22 /* IBM System/390 Processor */ 155/* RESERVED 23-35 for future use */ 156#define EM_V800 36 /* NEC V800 */ 157#define EM_FR20 37 /* Fujitsu FR20 */ 158#define EM_RH32 38 /* TRW RH-32 */ 159#define EM_RCE 39 /* Motorola RCE */ 160#define EM_ARM 40 /* Advanced Risc Machines ARM */ 161#define EM_ALPHA 41 /* Digital Alpha */ 162#define EM_SH 42 /* Hitachi SH */ 163#define EM_SPARCV9 43 /* SPARC Version 9 */ 164#define EM_TRICORE 44 /* Siemens TriCore embedded processor */ 165#define EM_ARC 45 /* Argonaut RISC Core */ 166#define EM_H8_300 46 /* Hitachi H8/300 */ 167#define EM_H8_300H 47 /* Hitachi H8/300H */ 168#define EM_H8S 48 /* Hitachi H8S */ 169#define EM_H8_500 49 /* Hitachi H8/500 */ 170#define EM_IA_64 50 /* Intel Merced */ 171#define EM_MIPS_X 51 /* Stanford MIPS-X */ 172#define EM_COLDFIRE 52 /* Motorola Coldfire */ 173#define EM_68HC12 53 /* Motorola M68HC12 */ 174#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/ 175#define EM_PCP 55 /* Siemens PCP */ 176#define EM_NCPU 56 /* Sony nCPU embeeded RISC */ 177#define EM_NDR1 57 /* Denso NDR1 microprocessor */ 178#define EM_STARCORE 58 /* Motorola Start*Core processor */ 179#define EM_ME16 59 /* Toyota ME16 processor */ 180#define EM_ST100 60 /* STMicroelectronic ST100 processor */ 181#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/ 182#define EM_X86_64 62 /* AMD x86-64 */ 183#define EM_PDSP 63 /* Sony DSP Processor */ 184/* RESERVED 64,65 for future use */ 185#define EM_FX66 66 /* Siemens FX66 microcontroller */ 186#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */ 187#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */ 188#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */ 189#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */ 190#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */ 191#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */ 192#define EM_SVX 73 /* Silicon Graphics SVx */ 193#define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */ 194#define EM_VAX 75 /* Digital VAX */ 195#define EM_CHRIS 76 /* Axis Communications embedded proc. */ 196#define EM_JAVELIN 77 /* Infineon Technologies emb. proc. */ 197#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ 198#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ 199#define EM_MMIX 80 /* Donald Knuth's edu 64-bit proc. */ 200#define EM_HUANY 81 /* Harvard University mach-indep objs */ 201#define EM_PRISM 82 /* SiTera Prism */ 202#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ 203#define EM_FR30 84 /* Fujitsu FR30 */ 204#define EM_D10V 85 /* Mitsubishi DV10V */ 205#define EM_D30V 86 /* Mitsubishi DV30V */ 206#define EM_V850 87 /* NEC v850 */ 207#define EM_M32R 88 /* Mitsubishi M32R */ 208#define EM_MN10300 89 /* Matsushita MN10200 */ 209#define EM_MN10200 90 /* Matsushita MN10200 */ 210#define EM_PJ 91 /* picoJava */ 211#define EM_NUM 92 /* number of machine types */ 212 213/* Version */ 214#define EV_NONE 0 /* Invalid */ 215#define EV_CURRENT 1 /* Current */ 216#define EV_NUM 2 /* number of versions */ 217 218/* Section Header */ 219typedef struct { 220 Elf32_Word sh_name; /* name - index into section header 221 string table section */ 222 Elf32_Word sh_type; /* type */ 223 Elf32_Word sh_flags; /* flags */ 224 Elf32_Addr sh_addr; /* address */ 225 Elf32_Off sh_offset; /* file offset */ 226 Elf32_Word sh_size; /* section size */ 227 Elf32_Word sh_link; /* section header table index link */ 228 Elf32_Word sh_info; /* extra information */ 229 Elf32_Word sh_addralign; /* address alignment */ 230 Elf32_Word sh_entsize; /* section entry size */ 231} Elf32_Shdr; 232 233/* Special Section Indexes */ 234#define SHN_UNDEF 0 /* undefined */ 235#define SHN_LORESERVE 0xff00 /* lower bounds of reserved indexes */ 236#define SHN_LOPROC 0xff00 /* reserved range for processor */ 237#define SHN_HIPROC 0xff1f /* specific section indexes */ 238#define SHN_LOOS 0xff20 /* reserved range for operating */ 239#define SHN_HIOS 0xff3f /* specific semantics */ 240#define SHN_ABS 0xfff1 /* absolute value */ 241#define SHN_COMMON 0xfff2 /* common symbol */ 242#define SHN_XINDEX 0xffff /* Index is an extra table */ 243#define SHN_HIRESERVE 0xffff /* upper bounds of reserved indexes */ 244 245/* sh_type */ 246#define SHT_NULL 0 /* inactive */ 247#define SHT_PROGBITS 1 /* program defined information */ 248#define SHT_SYMTAB 2 /* symbol table section */ 249#define SHT_STRTAB 3 /* string table section */ 250#define SHT_RELA 4 /* relocation section with addends*/ 251#define SHT_HASH 5 /* symbol hash table section */ 252#define SHT_DYNAMIC 6 /* dynamic section */ 253#define SHT_NOTE 7 /* note section */ 254#define SHT_NOBITS 8 /* no space section */ 255#define SHT_REL 9 /* relation section without addends */ 256#define SHT_SHLIB 10 /* reserved - purpose unknown */ 257#define SHT_DYNSYM 11 /* dynamic symbol table section */ 258#define SHT_INIT_ARRAY 14 /* Array of constructors */ 259#define SHT_FINI_ARRAY 15 /* Array of destructors */ 260#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */ 261#define SHT_GROUP 17 /* Section group */ 262#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */ 263#define SHT_NUM 19 /* number of section types */ 264#define SHT_LOOS 0x60000000 /* Start OS-specific */ 265#define SHT_HIOS 0x6fffffff /* End OS-specific */ 266#define SHT_LOPROC 0x70000000 /* reserved range for processor */ 267#define SHT_HIPROC 0x7fffffff /* specific section header types */ 268#define SHT_LOUSER 0x80000000 /* reserved range for application */ 269#define SHT_HIUSER 0xffffffff /* specific indexes */ 270 271/* Section names */ 272#define ELF_BSS ".bss" /* uninitialized data */ 273#define ELF_COMMENT ".comment" /* version control information */ 274#define ELF_DATA ".data" /* initialized data */ 275#define ELF_DATA1 ".data1" /* initialized data */ 276#define ELF_DEBUG ".debug" /* debug */ 277#define ELF_DYNAMIC ".dynamic" /* dynamic linking information */ 278#define ELF_DYNSTR ".dynstr" /* dynamic string table */ 279#define ELF_DYNSYM ".dynsym" /* dynamic symbol table */ 280#define ELF_FINI ".fini" /* termination code */ 281#define ELF_FINI_ARRAY ".fini_array" /* Array of destructors */ 282#define ELF_GOT ".got" /* global offset table */ 283#define ELF_HASH ".hash" /* symbol hash table */ 284#define ELF_INIT ".init" /* initialization code */ 285#define ELF_INIT_ARRAY ".init_array" /* Array of constuctors */ 286#define ELF_INTERP ".interp" /* Pathname of program interpreter */ 287#define ELF_LINE ".line" /* Symbolic line numnber information */ 288#define ELF_NOTE ".note" /* Contains note section */ 289#define ELF_PLT ".plt" /* Procedure linkage table */ 290#define ELF_PREINIT_ARRAY ".preinit_array" /* Array of pre-constructors */ 291#define ELF_REL_DATA ".rel.data" /* relocation data */ 292#define ELF_REL_FINI ".rel.fini" /* relocation termination code */ 293#define ELF_REL_INIT ".rel.init" /* relocation initialization code */ 294#define ELF_REL_DYN ".rel.dyn" /* relocaltion dynamic link info */ 295#define ELF_REL_RODATA ".rel.rodata" /* relocation read-only data */ 296#define ELF_REL_TEXT ".rel.text" /* relocation code */ 297#define ELF_RODATA ".rodata" /* read-only data */ 298#define ELF_RODATA1 ".rodata1" /* read-only data */ 299#define ELF_SHSTRTAB ".shstrtab" /* section header string table */ 300#define ELF_STRTAB ".strtab" /* string table */ 301#define ELF_SYMTAB ".symtab" /* symbol table */ 302#define ELF_SYMTAB_SHNDX ".symtab_shndx"/* symbol table section index */ 303#define ELF_TBSS ".tbss" /* thread local uninit data */ 304#define ELF_TDATA ".tdata" /* thread local init data */ 305#define ELF_TDATA1 ".tdata1" /* thread local init data */ 306#define ELF_TEXT ".text" /* code */ 307 308/* Section Attribute Flags - sh_flags */ 309#define SHF_WRITE 0x1 /* Writable */ 310#define SHF_ALLOC 0x2 /* occupies memory */ 311#define SHF_EXECINSTR 0x4 /* executable */ 312#define SHF_MERGE 0x10 /* Might be merged */ 313#define SHF_STRINGS 0x20 /* Contains NULL terminated strings */ 314#define SHF_INFO_LINK 0x40 /* sh_info contains SHT index */ 315#define SHF_LINK_ORDER 0x80 /* Preserve order after combining*/ 316#define SHF_OS_NONCONFORMING 0x100 /* Non-standard OS specific handling */ 317#define SHF_GROUP 0x200 /* Member of section group */ 318#define SHF_TLS 0x400 /* Thread local storage */ 319#define SHF_MASKOS 0x0ff00000 /* OS specific */ 320#define SHF_MASKPROC 0xf0000000 /* reserved bits for processor */ 321 /* specific section attributes */ 322 323/* Section Group Flags */ 324#define GRP_COMDAT 0x1 /* COMDAT group */ 325#define GRP_MASKOS 0x0ff00000 /* Mask OS specific flags */ 326#define GRP_MASKPROC 0xf0000000 /* Mask processor specific flags */ 327 328/* Symbol Table Entry */ 329typedef struct elf32_sym { 330 Elf32_Word st_name; /* name - index into string table */ 331 Elf32_Addr st_value; /* symbol value */ 332 Elf32_Word st_size; /* symbol size */ 333 unsigned char st_info; /* type and binding */ 334 unsigned char st_other; /* 0 - no defined meaning */ 335 Elf32_Half st_shndx; /* section header index */ 336} Elf32_Sym; 337 338/* Symbol table index */ 339#define STN_UNDEF 0 /* undefined */ 340 341/* Extract symbol info - st_info */ 342#define ELF32_ST_BIND(x) ((x) >> 4) 343#define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf) 344#define ELF32_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf)) 345#define ELF32_ST_VISIBILITY(x) ((x) & 0x3) 346 347/* Symbol Binding - ELF32_ST_BIND - st_info */ 348#define STB_LOCAL 0 /* Local symbol */ 349#define STB_GLOBAL 1 /* Global symbol */ 350#define STB_WEAK 2 /* like global - lower precedence */ 351#define STB_NUM 3 /* number of symbol bindings */ 352#define STB_LOOS 10 /* reserved range for operating */ 353#define STB_HIOS 12 /* system specific symbol bindings */ 354#define STB_LOPROC 13 /* reserved range for processor */ 355#define STB_HIPROC 15 /* specific symbol bindings */ 356 357/* Symbol type - ELF32_ST_TYPE - st_info */ 358#define STT_NOTYPE 0 /* not specified */ 359#define STT_OBJECT 1 /* data object */ 360#define STT_FUNC 2 /* function */ 361#define STT_SECTION 3 /* section */ 362#define STT_FILE 4 /* file */ 363#define STT_NUM 5 /* number of symbol types */ 364#define STT_TLS 6 /* Thread local storage symbol */ 365#define STT_LOOS 10 /* reserved range for operating */ 366#define STT_HIOS 12 /* system specific symbol types */ 367#define STT_LOPROC 13 /* reserved range for processor */ 368#define STT_HIPROC 15 /* specific symbol types */ 369 370/* Symbol visibility - ELF32_ST_VISIBILITY - st_other */ 371#define STV_DEFAULT 0 /* Normal visibility rules */ 372#define STV_INTERNAL 1 /* Processor specific hidden class */ 373#define STV_HIDDEN 2 /* Symbol unavailable in other mods */ 374#define STV_PROTECTED 3 /* Not preemptible, not exported */ 375 376 377/* Relocation entry with implicit addend */ 378typedef struct 379{ 380 Elf32_Addr r_offset; /* offset of relocation */ 381 Elf32_Word r_info; /* symbol table index and type */ 382} Elf32_Rel; 383 384/* Relocation entry with explicit addend */ 385typedef struct 386{ 387 Elf32_Addr r_offset; /* offset of relocation */ 388 Elf32_Word r_info; /* symbol table index and type */ 389 Elf32_Sword r_addend; 390} Elf32_Rela; 391 392typedef struct { 393 Elf64_Addr r_offset; /* Location at which to apply the action */ 394 Elf64_Xword r_info; /* index and type of relocation */ 395} Elf64_Rel; 396 397/* Extract relocation info - r_info */ 398#define ELF32_R_SYM(i) ((i) >> 8) 399#define ELF32_R_TYPE(i) ((unsigned char) (i)) 400#define ELF32_R_INFO(s,t) (((s) << 8) + (unsigned char)(t)) 401 402/* Program Header */ 403typedef struct { 404 Elf32_Word p_type; /* segment type */ 405 Elf32_Off p_offset; /* segment offset */ 406 Elf32_Addr p_vaddr; /* virtual address of segment */ 407 Elf32_Addr p_paddr; /* physical address - ignored? */ 408 Elf32_Word p_filesz; /* number of bytes in file for seg. */ 409 Elf32_Word p_memsz; /* number of bytes in mem. for seg. */ 410 Elf32_Word p_flags; /* flags */ 411 Elf32_Word p_align; /* memory alignment */ 412} Elf32_Phdr; 413 414/* Segment types - p_type */ 415#define PT_NULL 0 /* unused */ 416#define PT_LOAD 1 /* loadable segment */ 417#define PT_DYNAMIC 2 /* dynamic linking section */ 418#define PT_INTERP 3 /* the RTLD */ 419#define PT_NOTE 4 /* auxiliary information */ 420#define PT_SHLIB 5 /* reserved - purpose undefined */ 421#define PT_PHDR 6 /* program header */ 422#define PT_TLS 7 /* Thread local storage template */ 423#define PT_NUM 8 /* Number of segment types */ 424#define PT_LOOS 0x60000000 /* reserved range for operating */ 425#define PT_HIOS 0x6fffffff /* system specific segment types */ 426#define PT_LOPROC 0x70000000 /* reserved range for processor */ 427#define PT_HIPROC 0x7fffffff /* specific segment types */ 428 429/* Segment flags - p_flags */ 430#define PF_X 0x1 /* Executable */ 431#define PF_W 0x2 /* Writable */ 432#define PF_R 0x4 /* Readable */ 433#define PF_MASKOS 0x0ff00000 /* OS specific segment flags */ 434#define PF_MASKPROC 0xf0000000 /* reserved bits for processor */ 435 /* specific segment flags */ 436/* Dynamic structure */ 437typedef struct 438{ 439 Elf32_Sword d_tag; /* controls meaning of d_val */ 440 union 441 { 442 Elf32_Word d_val; /* Multiple meanings - see d_tag */ 443 Elf32_Addr d_ptr; /* program virtual address */ 444 } d_un; 445} Elf32_Dyn; 446 447extern Elf32_Dyn _DYNAMIC[]; 448 449typedef struct { 450 Elf64_Sxword d_tag; /* entry tag value */ 451 union { 452 Elf64_Xword d_val; 453 Elf64_Addr d_ptr; 454 } d_un; 455} Elf64_Dyn; 456 457#define ELF64_R_SYM(i) ((i) >> 32) 458#define ELF64_R_TYPE(i) ((i) & 0xffffffff) 459 460/* Dynamic Array Tags - d_tag */ 461#define DT_NULL 0 /* marks end of _DYNAMIC array */ 462#define DT_NEEDED 1 /* string table offset of needed lib */ 463#define DT_PLTRELSZ 2 /* size of relocation entries in PLT */ 464#define DT_PLTGOT 3 /* address PLT/GOT */ 465#define DT_HASH 4 /* address of symbol hash table */ 466#define DT_STRTAB 5 /* address of string table */ 467#define DT_SYMTAB 6 /* address of symbol table */ 468#define DT_RELA 7 /* address of relocation table */ 469#define DT_RELASZ 8 /* size of relocation table */ 470#define DT_RELAENT 9 /* size of relocation entry */ 471#define DT_STRSZ 10 /* size of string table */ 472#define DT_SYMENT 11 /* size of symbol table entry */ 473#define DT_INIT 12 /* address of initialization func. */ 474#define DT_FINI 13 /* address of termination function */ 475#define DT_SONAME 14 /* string table offset of shared obj */ 476#define DT_RPATH 15 /* string table offset of library 477 search path */ 478#define DT_SYMBOLIC 16 /* start sym search in shared obj. */ 479#define DT_REL 17 /* address of rel. tbl. w addends */ 480#define DT_RELSZ 18 /* size of DT_REL relocation table */ 481#define DT_RELENT 19 /* size of DT_REL relocation entry */ 482#define DT_PLTREL 20 /* PLT referenced relocation entry */ 483#define DT_DEBUG 21 /* bugger */ 484#define DT_TEXTREL 22 /* Allow rel. mod. to unwritable seg */ 485#define DT_JMPREL 23 /* add. of PLT's relocation entries */ 486#define DT_BIND_NOW 24 /* Process relocations of object */ 487#define DT_INIT_ARRAY 25 /* Array with addresses of init fct */ 488#define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */ 489#define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */ 490#define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */ 491#define DT_RUNPATH 29 /* Library search path */ 492#define DT_FLAGS 30 /* Flags for the object being loaded */ 493#define DT_ENCODING 32 /* Start of encoded range */ 494#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/ 495#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */ 496#define DT_NUM 34 /* Number used. */ 497#define DT_LOOS 0x60000000 /* reserved range for OS */ 498#define DT_HIOS 0x6fffffff /* specific dynamic array tags */ 499#define DT_LOPROC 0x70000000 /* reserved range for processor */ 500#define DT_HIPROC 0x7fffffff /* specific dynamic array tags */ 501 502/* Dynamic Tag Flags - d_un.d_val */ 503#define DF_ORIGIN 0x01 /* Object may use DF_ORIGIN */ 504#define DF_SYMBOLIC 0x02 /* Symbol resolutions starts here */ 505#define DF_TEXTREL 0x04 /* Object contains text relocations */ 506#define DF_BIND_NOW 0x08 /* No lazy binding for this object */ 507#define DF_STATIC_TLS 0x10 /* Static thread local storage */ 508 509/* Standard ELF hashing function */ 510unsigned long elf_hash(const unsigned char *name); 511 512#define ELF_TARG_VER 1 /* The ver for which this code is intended */ 513 514/* 515 * XXX - PowerPC defines really don't belong in here, 516 * but we'll put them in for simplicity. 517 */ 518 519/* Values for Elf32/64_Ehdr.e_flags. */ 520#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */ 521 522/* Cygnus local bits below */ 523#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/ 524#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib 525 flag */ 526 527/* PowerPC relocations defined by the ABIs */ 528#define R_PPC_NONE 0 529#define R_PPC_ADDR32 1 /* 32bit absolute address */ 530#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */ 531#define R_PPC_ADDR16 3 /* 16bit absolute address */ 532#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */ 533#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */ 534#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */ 535#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */ 536#define R_PPC_ADDR14_BRTAKEN 8 537#define R_PPC_ADDR14_BRNTAKEN 9 538#define R_PPC_REL24 10 /* PC relative 26 bit */ 539#define R_PPC_REL14 11 /* PC relative 16 bit */ 540#define R_PPC_REL14_BRTAKEN 12 541#define R_PPC_REL14_BRNTAKEN 13 542#define R_PPC_GOT16 14 543#define R_PPC_GOT16_LO 15 544#define R_PPC_GOT16_HI 16 545#define R_PPC_GOT16_HA 17 546#define R_PPC_PLTREL24 18 547#define R_PPC_COPY 19 548#define R_PPC_GLOB_DAT 20 549#define R_PPC_JMP_SLOT 21 550#define R_PPC_RELATIVE 22 551#define R_PPC_LOCAL24PC 23 552#define R_PPC_UADDR32 24 553#define R_PPC_UADDR16 25 554#define R_PPC_REL32 26 555#define R_PPC_PLT32 27 556#define R_PPC_PLTREL32 28 557#define R_PPC_PLT16_LO 29 558#define R_PPC_PLT16_HI 30 559#define R_PPC_PLT16_HA 31 560#define R_PPC_SDAREL16 32 561#define R_PPC_SECTOFF 33 562#define R_PPC_SECTOFF_LO 34 563#define R_PPC_SECTOFF_HI 35 564#define R_PPC_SECTOFF_HA 36 565/* Keep this the last entry. */ 566#define R_PPC_NUM 37 567 568/* The remaining relocs are from the Embedded ELF ABI, and are not 569 in the SVR4 ELF ABI. */ 570#define R_PPC_EMB_NADDR32 101 571#define R_PPC_EMB_NADDR16 102 572#define R_PPC_EMB_NADDR16_LO 103 573#define R_PPC_EMB_NADDR16_HI 104 574#define R_PPC_EMB_NADDR16_HA 105 575#define R_PPC_EMB_SDAI16 106 576#define R_PPC_EMB_SDA2I16 107 577#define R_PPC_EMB_SDA2REL 108 578#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */ 579#define R_PPC_EMB_MRKREF 110 580#define R_PPC_EMB_RELSEC16 111 581#define R_PPC_EMB_RELST_LO 112 582#define R_PPC_EMB_RELST_HI 113 583#define R_PPC_EMB_RELST_HA 114 584#define R_PPC_EMB_BIT_FLD 115 585#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */ 586 587/* Diab tool relocations. */ 588#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */ 589#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */ 590#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */ 591#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */ 592#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */ 593#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */ 594 595/* This is a phony reloc to handle any old fashioned TOC16 references 596 that may still be in object files. */ 597#define R_PPC_TOC16 255 598 599int valid_elf_image(unsigned long addr); 600 601#endif /* _ELF_H */ 602