projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| a2cecab6 WD |
1 | /* |
| 2 | * Copyright (c) 1995, 1996, 2001, 2002 | |
| 3 | * Erik Theisen. All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * 3. The name of the author may not be used to endorse or promote products | |
| 14 | * derived from this software without specific prior written permission | |
| 15 | * | |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
| 17 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
| 18 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
| 19 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 21 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 22 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 23 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 25 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 | */ | |
| 27 | ||
| 28 | /* | |
| 29 | * This is the ELF ABI header file | |
| 30 | * formerly known as "elf_abi.h". | |
| 31 | */ | |
| 32 | ||
| 33 | #ifndef _ELF_H | |
| 34 | #define _ELF_H | |
| 35 | ||
| 36 | #if defined(__BEOS__) || \ | |
| 37 | defined(__NetBSD__) || \ | |
| 38 | defined(__FreeBSD__) || \ | |
| 39 | defined(__sun__) || \ | |
| 40 | defined(__APPLE__) | |
| 41 | #include <inttypes.h> | |
| 42 | #elif defined(__linux__) && defined(USE_HOSTCC) | |
| 43 | #include <stdint.h> | |
| 44 | #endif | |
| 45 | ||
| 46 | #ifdef __CYGWIN__ | |
| 47 | #include <sys/types.h> | |
| 48 | typedef unsigned long int uint32_t; | |
| 49 | typedef unsigned short uint16_t; | |
| 50 | typedef unsigned char uint8_t; | |
| 51 | #endif /* __CYGWIN__ */ | |
| 52 | ||
| 53 | /* | |
| 54 | * This version doesn't work for 64-bit ABIs - Erik. | |
| 55 | */ | |
| 56 | ||
| 57 | /* | |
| 58 | * These typedefs need to be handled better. | |
| 59 | */ | |
| 60 | typedef uint32_t Elf32_Addr; /* Unsigned program address */ | |
| 61 | typedef uint32_t Elf32_Off; /* Unsigned file offset */ | |
| 62 | typedef int32_t Elf32_Sword; /* Signed large integer */ | |
| 63 | typedef uint32_t Elf32_Word; /* Unsigned large integer */ | |
| 64 | typedef uint16_t Elf32_Half; /* Unsigned medium integer */ | |
| 65 | ||
| 66 | /* e_ident[] identification indexes */ | |
| 67 | #define EI_MAG0 0 /* file ID */ | |
| 68 | #define EI_MAG1 1 /* file ID */ | |
| 69 | #define EI_MAG2 2 /* file ID */ | |
| 70 | #define EI_MAG3 3 /* file ID */ | |
| 71 | #define EI_CLASS 4 /* file class */ | |
| 72 | #define EI_DATA 5 /* data encoding */ | |
| 73 | #define EI_VERSION 6 /* ELF header version */ | |
| 74 | #define EI_OSABI 7 /* OS/ABI specific ELF extensions */ | |
| 75 | #define EI_ABIVERSION 8 /* ABI target version */ | |
| 76 | #define EI_PAD 9 /* start of pad bytes */ | |
| 77 | #define EI_NIDENT 16 /* Size of e_ident[] */ | |
| 78 | ||
| 79 | /* e_ident[] magic number */ | |
| 80 | #define ELFMAG0 0x7f /* e_ident[EI_MAG0] */ | |
| 81 | #define ELFMAG1 'E' /* e_ident[EI_MAG1] */ | |
| 82 | #define ELFMAG2 'L' /* e_ident[EI_MAG2] */ | |
| 83 | #define ELFMAG3 'F' /* e_ident[EI_MAG3] */ | |
| 84 | #define ELFMAG "\177ELF" /* magic */ | |
| 85 | #define SELFMAG 4 /* size of magic */ | |
| 86 | ||
| 87 | /* e_ident[] file class */ | |
| 88 | #define ELFCLASSNONE 0 /* invalid */ | |
| 89 | #define ELFCLASS32 1 /* 32-bit objs */ | |
| 90 | #define ELFCLASS64 2 /* 64-bit objs */ | |
| 91 | #define ELFCLASSNUM 3 /* number of classes */ | |
| 92 | ||
| 93 | /* e_ident[] data encoding */ | |
| 94 | #define ELFDATANONE 0 /* invalid */ | |
| 95 | #define ELFDATA2LSB 1 /* Little-Endian */ | |
| 96 | #define ELFDATA2MSB 2 /* Big-Endian */ | |
| 97 | #define ELFDATANUM 3 /* number of data encode defines */ | |
| 98 | ||
| 99 | /* e_ident[] OS/ABI specific ELF extensions */ | |
| 100 | #define ELFOSABI_NONE 0 /* No extension specified */ | |
| 101 | #define ELFOSABI_HPUX 1 /* Hewlett-Packard HP-UX */ | |
| 102 | #define ELFOSABI_NETBSD 2 /* NetBSD */ | |
| 103 | #define ELFOSABI_LINUX 3 /* Linux */ | |
| 104 | #define ELFOSABI_SOLARIS 6 /* Sun Solaris */ | |
| 105 | #define ELFOSABI_AIX 7 /* AIX */ | |
| 106 | #define ELFOSABI_IRIX 8 /* IRIX */ | |
| 107 | #define ELFOSABI_FREEBSD 9 /* FreeBSD */ | |
| 108 | #define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX */ | |
| 109 | #define ELFOSABI_MODESTO 11 /* Novell Modesto */ | |
| 110 | #define ELFOSABI_OPENBSD 12 /* OpenBSD */ | |
| 111 | /* 64-255 Architecture-specific value range */ | |
| 112 | ||
| 113 | /* e_ident[] ABI Version */ | |
| 114 | #define ELFABIVERSION 0 | |
| 115 | ||
| 116 | /* e_ident */ | |
| 117 | #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \ | |
| 118 | (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \ | |
| 119 | (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \ | |
| 120 | (ehdr).e_ident[EI_MAG3] == ELFMAG3) | |
| 121 | ||
| 122 | /* ELF Header */ | |
| 123 | typedef struct elfhdr{ | |
| 124 | unsigned char e_ident[EI_NIDENT]; /* ELF Identification */ | |
| 125 | Elf32_Half e_type; /* object file type */ | |
| 126 | Elf32_Half e_machine; /* machine */ | |
| 127 | Elf32_Word e_version; /* object file version */ | |
| 128 | Elf32_Addr e_entry; /* virtual entry point */ | |
| 129 | Elf32_Off e_phoff; /* program header table offset */ | |
| 130 | Elf32_Off e_shoff; /* section header table offset */ | |
| 131 | Elf32_Word e_flags; /* processor-specific flags */ | |
| 132 | Elf32_Half e_ehsize; /* ELF header size */ | |
| 133 | Elf32_Half e_phentsize; /* program header entry size */ | |
| 134 | Elf32_Half e_phnum; /* number of program header entries */ | |
| 135 | Elf32_Half e_shentsize; /* section header entry size */ | |
| 136 | Elf32_Half e_shnum; /* number of section header entries */ | |
| 137 | Elf32_Half e_shstrndx; /* section header table's "section | |
| 138 | header string table" entry offset */ | |
| 139 | } Elf32_Ehdr; | |
| 140 | ||
| 141 | /* e_type */ | |
| 142 | #define ET_NONE 0 /* No file type */ | |
| 143 | #define ET_REL 1 /* relocatable file */ | |
| 144 | #define ET_EXEC 2 /* executable file */ | |
| 145 | #define ET_DYN 3 /* shared object file */ | |
| 146 | #define ET_CORE 4 /* core file */ | |
| 147 | #define ET_NUM 5 /* number of types */ | |
| 148 | #define ET_LOOS 0xfe00 /* reserved range for operating */ | |
| 149 | #define ET_HIOS 0xfeff /* system specific e_type */ | |
| 150 | #define ET_LOPROC 0xff00 /* reserved range for processor */ | |
| 151 | #define ET_HIPROC 0xffff /* specific e_type */ | |
| 152 | ||
| 153 | /* e_machine */ | |
| 154 | #define EM_NONE 0 /* No Machine */ | |
| 155 | #define EM_M32 1 /* AT&T WE 32100 */ | |
| 156 | #define EM_SPARC 2 /* SPARC */ | |
| 157 | #define EM_386 3 /* Intel 80386 */ | |
| 158 | #define EM_68K 4 /* Motorola 68000 */ | |
| 159 | #define EM_88K 5 /* Motorola 88000 */ | |
| 160 | #if 0 | |
| 161 | #define EM_486 6 /* RESERVED - was Intel 80486 */ | |
| 162 | #endif | |
| 163 | #define EM_860 7 /* Intel 80860 */ | |
| 164 | #define EM_MIPS 8 /* MIPS R3000 Big-Endian only */ | |
| 165 | #define EM_S370 9 /* IBM System/370 Processor */ | |
| 166 | #define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */ | |
| 167 | #if 0 | |
| 168 | #define EM_SPARC64 11 /* RESERVED - was SPARC v9 | |
| 169 | 64-bit unoffical */ | |
| 170 | #endif | |
| 171 | /* RESERVED 11-14 for future use */ | |
| 172 | #define EM_PARISC 15 /* HPPA */ | |
| 173 | /* RESERVED 16 for future use */ | |
| 174 | #define EM_VPP500 17 /* Fujitsu VPP500 */ | |
| 175 | #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */ | |
| 176 | #define EM_960 19 /* Intel 80960 */ | |
| 177 | #define EM_PPC 20 /* PowerPC */ | |
| 178 | #define EM_PPC64 21 /* 64-bit PowerPC */ | |
| 179 | #define EM_S390 22 /* IBM System/390 Processor */ | |
| 180 | /* RESERVED 23-35 for future use */ | |
| 181 | #define EM_V800 36 /* NEC V800 */ | |
| 182 | #define EM_FR20 37 /* Fujitsu FR20 */ | |
| 183 | #define EM_RH32 38 /* TRW RH-32 */ | |
| 184 | #define EM_RCE 39 /* Motorola RCE */ | |
| 185 | #define EM_ARM 40 /* Advanced Risc Machines ARM */ | |
| 186 | #define EM_ALPHA 41 /* Digital Alpha */ | |
| 187 | #define EM_SH 42 /* Hitachi SH */ | |
| 188 | #define EM_SPARCV9 43 /* SPARC Version 9 */ | |
| 189 | #define EM_TRICORE 44 /* Siemens TriCore embedded processor */ | |
| 190 | #define EM_ARC 45 /* Argonaut RISC Core */ | |
| 191 | #define EM_H8_300 46 /* Hitachi H8/300 */ | |
| 192 | #define EM_H8_300H 47 /* Hitachi H8/300H */ | |
| 193 | #define EM_H8S 48 /* Hitachi H8S */ | |
| 194 | #define EM_H8_500 49 /* Hitachi H8/500 */ | |
| 195 | #define EM_IA_64 50 /* Intel Merced */ | |
| 196 | #define EM_MIPS_X 51 /* Stanford MIPS-X */ | |
| 197 | #define EM_COLDFIRE 52 /* Motorola Coldfire */ | |
| 198 | #define EM_68HC12 53 /* Motorola M68HC12 */ | |
| 199 | #define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/ | |
| 200 | #define EM_PCP 55 /* Siemens PCP */ | |
| 201 | #define EM_NCPU 56 /* Sony nCPU embeeded RISC */ | |
| 202 | #define EM_NDR1 57 /* Denso NDR1 microprocessor */ | |
| 203 | #define EM_STARCORE 58 /* Motorola Start*Core processor */ | |
| 204 | #define EM_ME16 59 /* Toyota ME16 processor */ | |
| 205 | #define EM_ST100 60 /* STMicroelectronic ST100 processor */ | |
| 206 | #define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/ | |
| 207 | #define EM_X86_64 62 /* AMD x86-64 */ | |
| 208 | #define EM_PDSP 63 /* Sony DSP Processor */ | |
| 209 | /* RESERVED 64,65 for future use */ | |
| 210 | #define EM_FX66 66 /* Siemens FX66 microcontroller */ | |
| 211 | #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */ | |
| 212 | #define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */ | |
| 213 | #define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */ | |
| 214 | #define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */ | |
| 215 | #define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */ | |
| 216 | #define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */ | |
| 217 | #define EM_SVX 73 /* Silicon Graphics SVx */ | |
| 218 | #define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */ | |
| 219 | #define EM_VAX 75 /* Digital VAX */ | |
| 220 | #define EM_CHRIS 76 /* Axis Communications embedded proc. */ | |
| 221 | #define EM_JAVELIN 77 /* Infineon Technologies emb. proc. */ | |
| 222 | #define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ | |
| 223 | #define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ | |
| 224 | #define EM_MMIX 80 /* Donald Knuth's edu 64-bit proc. */ | |
| 225 | #define EM_HUANY 81 /* Harvard University mach-indep objs */ | |
| 226 | #define EM_PRISM 82 /* SiTera Prism */ | |
| 227 | #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ | |
| 228 | #define EM_FR30 84 /* Fujitsu FR30 */ | |
| 229 | #define EM_D10V 85 /* Mitsubishi DV10V */ | |
| 230 | #define EM_D30V 86 /* Mitsubishi DV30V */ | |
| 231 | #define EM_V850 87 /* NEC v850 */ | |
| 232 | #define EM_M32R 88 /* Mitsubishi M32R */ | |
| 233 | #define EM_MN10300 89 /* Matsushita MN10200 */ | |
| 234 | #define EM_MN10200 90 /* Matsushita MN10200 */ | |
| 235 | #define EM_PJ 91 /* picoJava */ | |
| 236 | #define EM_NUM 92 /* number of machine types */ | |
| 237 | ||
| 238 | /* Version */ | |
| 239 | #define EV_NONE 0 /* Invalid */ | |
| 240 | #define EV_CURRENT 1 /* Current */ | |
| 241 | #define EV_NUM 2 /* number of versions */ | |
| 242 | ||
| 243 | /* Section Header */ | |
| 244 | typedef struct { | |
| 245 | Elf32_Word sh_name; /* name - index into section header | |
| 246 | string table section */ | |
| 247 | Elf32_Word sh_type; /* type */ | |
| 248 | Elf32_Word sh_flags; /* flags */ | |
| 249 | Elf32_Addr sh_addr; /* address */ | |
| 250 | Elf32_Off sh_offset; /* file offset */ | |
| 251 | Elf32_Word sh_size; /* section size */ | |
| 252 | Elf32_Word sh_link; /* section header table index link */ | |
| 253 | Elf32_Word sh_info; /* extra information */ | |
| 254 | Elf32_Word sh_addralign; /* address alignment */ | |
| 255 | Elf32_Word sh_entsize; /* section entry size */ | |
| 256 | } Elf32_Shdr; | |
| 257 | ||
| 258 | /* Special Section Indexes */ | |
| 259 | #define SHN_UNDEF 0 /* undefined */ | |
| 260 | #define SHN_LORESERVE 0xff00 /* lower bounds of reserved indexes */ | |
| 261 | #define SHN_LOPROC 0xff00 /* reserved range for processor */ | |
| 262 | #define SHN_HIPROC 0xff1f /* specific section indexes */ | |
| 263 | #define SHN_LOOS 0xff20 /* reserved range for operating */ | |
| 264 | #define SHN_HIOS 0xff3f /* specific semantics */ | |
| 265 | #define SHN_ABS 0xfff1 /* absolute value */ | |
| 266 | #define SHN_COMMON 0xfff2 /* common symbol */ | |
| 267 | #define SHN_XINDEX 0xffff /* Index is an extra table */ | |
| 268 | #define SHN_HIRESERVE 0xffff /* upper bounds of reserved indexes */ | |
| 269 | ||
| 270 | /* sh_type */ | |
| 271 | #define SHT_NULL 0 /* inactive */ | |
| 272 | #define SHT_PROGBITS 1 /* program defined information */ | |
| 273 | #define SHT_SYMTAB 2 /* symbol table section */ | |
| 274 | #define SHT_STRTAB 3 /* string table section */ | |
| 275 | #define SHT_RELA 4 /* relocation section with addends*/ | |
| 276 | #define SHT_HASH 5 /* symbol hash table section */ | |
| 277 | #define SHT_DYNAMIC 6 /* dynamic section */ | |
| 278 | #define SHT_NOTE 7 /* note section */ | |
| 279 | #define SHT_NOBITS 8 /* no space section */ | |
| 280 | #define SHT_REL 9 /* relation section without addends */ | |
| 281 | #define SHT_SHLIB 10 /* reserved - purpose unknown */ | |
| 282 | #define SHT_DYNSYM 11 /* dynamic symbol table section */ | |
| 283 | #define SHT_INIT_ARRAY 14 /* Array of constructors */ | |
| 284 | #define SHT_FINI_ARRAY 15 /* Array of destructors */ | |
| 285 | #define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */ | |
| 286 | #define SHT_GROUP 17 /* Section group */ | |
| 287 | #define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */ | |
| 288 | #define SHT_NUM 19 /* number of section types */ | |
| 289 | #define SHT_LOOS 0x60000000 /* Start OS-specific */ | |
| 290 | #define SHT_HIOS 0x6fffffff /* End OS-specific */ | |
| 291 | #define SHT_LOPROC 0x70000000 /* reserved range for processor */ | |
| 292 | #define SHT_HIPROC 0x7fffffff /* specific section header types */ | |
| 293 | #define SHT_LOUSER 0x80000000 /* reserved range for application */ | |
| 294 | #define SHT_HIUSER 0xffffffff /* specific indexes */ | |
| 295 | ||
| 296 | /* Section names */ | |
| 297 | #define ELF_BSS ".bss" /* uninitialized data */ | |
| 298 | #define ELF_COMMENT ".comment" /* version control information */ | |
| 299 | #define ELF_DATA ".data" /* initialized data */ | |
| 300 | #define ELF_DATA1 ".data1" /* initialized data */ | |
| 301 | #define ELF_DEBUG ".debug" /* debug */ | |
| 302 | #define ELF_DYNAMIC ".dynamic" /* dynamic linking information */ | |
| 303 | #define ELF_DYNSTR ".dynstr" /* dynamic string table */ | |
| 304 | #define ELF_DYNSYM ".dynsym" /* dynamic symbol table */ | |
| 305 | #define ELF_FINI ".fini" /* termination code */ | |
| 306 | #define ELF_FINI_ARRAY ".fini_array" /* Array of destructors */ | |
| 307 | #define ELF_GOT ".got" /* global offset table */ | |
| 308 | #define ELF_HASH ".hash" /* symbol hash table */ | |
| 309 | #define ELF_INIT ".init" /* initialization code */ | |
| 310 | #define ELF_INIT_ARRAY ".init_array" /* Array of constuctors */ | |
| 311 | #define ELF_INTERP ".interp" /* Pathname of program interpreter */ | |
| 312 | #define ELF_LINE ".line" /* Symbolic line numnber information */ | |
| 313 | #define ELF_NOTE ".note" /* Contains note section */ | |
| 314 | #define ELF_PLT ".plt" /* Procedure linkage table */ | |
| 315 | #define ELF_PREINIT_ARRAY ".preinit_array" /* Array of pre-constructors */ | |
| 316 | #define ELF_REL_DATA ".rel.data" /* relocation data */ | |
| 317 | #define ELF_REL_FINI ".rel.fini" /* relocation termination code */ | |
| 318 | #define ELF_REL_INIT ".rel.init" /* relocation initialization code */ | |
| 319 | #define ELF_REL_DYN ".rel.dyn" /* relocaltion dynamic link info */ | |
| 320 | #define ELF_REL_RODATA ".rel.rodata" /* relocation read-only data */ | |
| 321 | #define ELF_REL_TEXT ".rel.text" /* relocation code */ | |
| 322 | #define ELF_RODATA ".rodata" /* read-only data */ | |
| 323 | #define ELF_RODATA1 ".rodata1" /* read-only data */ | |
| 324 | #define ELF_SHSTRTAB ".shstrtab" /* section header string table */ | |
| 325 | #define ELF_STRTAB ".strtab" /* string table */ | |
| 326 | #define ELF_SYMTAB ".symtab" /* symbol table */ | |
| 327 | #define ELF_SYMTAB_SHNDX ".symtab_shndx"/* symbol table section index */ | |
| 328 | #define ELF_TBSS ".tbss" /* thread local uninit data */ | |
| 329 | #define ELF_TDATA ".tdata" /* thread local init data */ | |
| 330 | #define ELF_TDATA1 ".tdata1" /* thread local init data */ | |
| 331 | #define ELF_TEXT ".text" /* code */ | |
| 332 | ||
| 333 | /* Section Attribute Flags - sh_flags */ | |
| 334 | #define SHF_WRITE 0x1 /* Writable */ | |
| 335 | #define SHF_ALLOC 0x2 /* occupies memory */ | |
| 336 | #define SHF_EXECINSTR 0x4 /* executable */ | |
| 337 | #define SHF_MERGE 0x10 /* Might be merged */ | |
| 338 | #define SHF_STRINGS 0x20 /* Contains NULL terminated strings */ | |
| 339 | #define SHF_INFO_LINK 0x40 /* sh_info contains SHT index */ | |
| 340 | #define SHF_LINK_ORDER 0x80 /* Preserve order after combining*/ | |
| 341 | #define SHF_OS_NONCONFORMING 0x100 /* Non-standard OS specific handling */ | |
| 342 | #define SHF_GROUP 0x200 /* Member of section group */ | |
| 343 | #define SHF_TLS 0x400 /* Thread local storage */ | |
| 344 | #define SHF_MASKOS 0x0ff00000 /* OS specific */ | |
| 345 | #define SHF_MASKPROC 0xf0000000 /* reserved bits for processor */ | |
| 346 | /* specific section attributes */ | |
| 347 | ||
| 348 | /* Section Group Flags */ | |
| 349 | #define GRP_COMDAT 0x1 /* COMDAT group */ | |
| 350 | #define GRP_MASKOS 0x0ff00000 /* Mask OS specific flags */ | |
| 351 | #define GRP_MASKPROC 0xf0000000 /* Mask processor specific flags */ | |
| 352 | ||
| 353 | /* Symbol Table Entry */ | |
| 354 | typedef struct elf32_sym { | |
| 355 | Elf32_Word st_name; /* name - index into string table */ | |
| 356 | Elf32_Addr st_value; /* symbol value */ | |
| 357 | Elf32_Word st_size; /* symbol size */ | |
| 358 | unsigned char st_info; /* type and binding */ | |
| 359 | unsigned char st_other; /* 0 - no defined meaning */ | |
| 360 | Elf32_Half st_shndx; /* section header index */ | |
| 361 | } Elf32_Sym; | |
| 362 | ||
| 363 | /* Symbol table index */ | |
| 364 | #define STN_UNDEF 0 /* undefined */ | |
| 365 | ||
| 366 | /* Extract symbol info - st_info */ | |
| 367 | #define ELF32_ST_BIND(x) ((x) >> 4) | |
| 368 | #define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf) | |
| 369 | #define ELF32_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf)) | |
| 370 | #define ELF32_ST_VISIBILITY(x) ((x) & 0x3) | |
| 371 | ||
| 372 | /* Symbol Binding - ELF32_ST_BIND - st_info */ | |
| 373 | #define STB_LOCAL 0 /* Local symbol */ | |
| 374 | #define STB_GLOBAL 1 /* Global symbol */ | |
| 375 | #define STB_WEAK 2 /* like global - lower precedence */ | |
| 376 | #define STB_NUM 3 /* number of symbol bindings */ | |
| 377 | #define STB_LOOS 10 /* reserved range for operating */ | |
| 378 | #define STB_HIOS 12 /* system specific symbol bindings */ | |
| 379 | #define STB_LOPROC 13 /* reserved range for processor */ | |
| 380 | #define STB_HIPROC 15 /* specific symbol bindings */ | |
| 381 | ||
| 382 | /* Symbol type - ELF32_ST_TYPE - st_info */ | |
| 383 | #define STT_NOTYPE 0 /* not specified */ | |
| 384 | #define STT_OBJECT 1 /* data object */ | |
| 385 | #define STT_FUNC 2 /* function */ | |
| 386 | #define STT_SECTION 3 /* section */ | |
| 387 | #define STT_FILE 4 /* file */ | |
| 388 | #define STT_NUM 5 /* number of symbol types */ | |
| 389 | #define STT_TLS 6 /* Thread local storage symbol */ | |
| 390 | #define STT_LOOS 10 /* reserved range for operating */ | |
| 391 | #define STT_HIOS 12 /* system specific symbol types */ | |
| 392 | #define STT_LOPROC 13 /* reserved range for processor */ | |
| 393 | #define STT_HIPROC 15 /* specific symbol types */ | |
| 394 | ||
| 395 | /* Symbol visibility - ELF32_ST_VISIBILITY - st_other */ | |
| 396 | #define STV_DEFAULT 0 /* Normal visibility rules */ | |
| 397 | #define STV_INTERNAL 1 /* Processor specific hidden class */ | |
| 398 | #define STV_HIDDEN 2 /* Symbol unavailable in other mods */ | |
| 399 | #define STV_PROTECTED 3 /* Not preemptible, not exported */ | |
| 400 | ||
| 401 | ||
| 402 | /* Relocation entry with implicit addend */ | |
| 403 | typedef struct | |
| 404 | { | |
| 405 | Elf32_Addr r_offset; /* offset of relocation */ | |
| 406 | Elf32_Word r_info; /* symbol table index and type */ | |
| 407 | } Elf32_Rel; | |
| 408 | ||
| 409 | /* Relocation entry with explicit addend */ | |
| 410 | typedef struct | |
| 411 | { | |
| 412 | Elf32_Addr r_offset; /* offset of relocation */ | |
| 413 | Elf32_Word r_info; /* symbol table index and type */ | |
| 414 | Elf32_Sword r_addend; | |
| 415 | } Elf32_Rela; | |
| 416 | ||
| 417 | /* Extract relocation info - r_info */ | |
| 418 | #define ELF32_R_SYM(i) ((i) >> 8) | |
| 419 | #define ELF32_R_TYPE(i) ((unsigned char) (i)) | |
| 420 | #define ELF32_R_INFO(s,t) (((s) << 8) + (unsigned char)(t)) | |
| 421 | ||
| 422 | /* Program Header */ | |
| 423 | typedef struct { | |
| 424 | Elf32_Word p_type; /* segment type */ | |
| 425 | Elf32_Off p_offset; /* segment offset */ | |
| 426 | Elf32_Addr p_vaddr; /* virtual address of segment */ | |
| 427 | Elf32_Addr p_paddr; /* physical address - ignored? */ | |
| 428 | Elf32_Word p_filesz; /* number of bytes in file for seg. */ | |
| 429 | Elf32_Word p_memsz; /* number of bytes in mem. for seg. */ | |
| 430 | Elf32_Word p_flags; /* flags */ | |
| 431 | Elf32_Word p_align; /* memory alignment */ | |
| 432 | } Elf32_Phdr; | |
| 433 | ||
| 434 | /* Segment types - p_type */ | |
| 435 | #define PT_NULL 0 /* unused */ | |
| 436 | #define PT_LOAD 1 /* loadable segment */ | |
| 437 | #define PT_DYNAMIC 2 /* dynamic linking section */ | |
| 438 | #define PT_INTERP 3 /* the RTLD */ | |
| 439 | #define PT_NOTE 4 /* auxiliary information */ | |
| 440 | #define PT_SHLIB 5 /* reserved - purpose undefined */ | |
| 441 | #define PT_PHDR 6 /* program header */ | |
| 442 | #define PT_TLS 7 /* Thread local storage template */ | |
| 443 | #define PT_NUM 8 /* Number of segment types */ | |
| 444 | #define PT_LOOS 0x60000000 /* reserved range for operating */ | |
| 445 | #define PT_HIOS 0x6fffffff /* system specific segment types */ | |
| 446 | #define PT_LOPROC 0x70000000 /* reserved range for processor */ | |
| 447 | #define PT_HIPROC 0x7fffffff /* specific segment types */ | |
| 448 | ||
| 449 | /* Segment flags - p_flags */ | |
| 450 | #define PF_X 0x1 /* Executable */ | |
| 451 | #define PF_W 0x2 /* Writable */ | |
| 452 | #define PF_R 0x4 /* Readable */ | |
| 453 | #define PF_MASKOS 0x0ff00000 /* OS specific segment flags */ | |
| 454 | #define PF_MASKPROC 0xf0000000 /* reserved bits for processor */ | |
| 455 | /* specific segment flags */ | |
| 456 | /* Dynamic structure */ | |
| 457 | typedef struct | |
| 458 | { | |
| 459 | Elf32_Sword d_tag; /* controls meaning of d_val */ | |
| 460 | union | |
| 461 | { | |
| 462 | Elf32_Word d_val; /* Multiple meanings - see d_tag */ | |
| 463 | Elf32_Addr d_ptr; /* program virtual address */ | |
| 464 | } d_un; | |
| 465 | } Elf32_Dyn; | |
| 466 | ||
| 467 | extern Elf32_Dyn _DYNAMIC[]; | |
| 468 | ||
| 469 | /* Dynamic Array Tags - d_tag */ | |
| 470 | #define DT_NULL 0 /* marks end of _DYNAMIC array */ | |
| 471 | #define DT_NEEDED 1 /* string table offset of needed lib */ | |
| 472 | #define DT_PLTRELSZ 2 /* size of relocation entries in PLT */ | |
| 473 | #define DT_PLTGOT 3 /* address PLT/GOT */ | |
| 474 | #define DT_HASH 4 /* address of symbol hash table */ | |
| 475 | #define DT_STRTAB 5 /* address of string table */ | |
| 476 | #define DT_SYMTAB 6 /* address of symbol table */ | |
| 477 | #define DT_RELA 7 /* address of relocation table */ | |
| 478 | #define DT_RELASZ 8 /* size of relocation table */ | |
| 479 | #define DT_RELAENT 9 /* size of relocation entry */ | |
| 480 | #define DT_STRSZ 10 /* size of string table */ | |
| 481 | #define DT_SYMENT 11 /* size of symbol table entry */ | |
| 482 | #define DT_INIT 12 /* address of initialization func. */ | |
| 483 | #define DT_FINI 13 /* address of termination function */ | |
| 484 | #define DT_SONAME 14 /* string table offset of shared obj */ | |
| 485 | #define DT_RPATH 15 /* string table offset of library | |
| 486 | search path */ | |
| 487 | #define DT_SYMBOLIC 16 /* start sym search in shared obj. */ | |
| 488 | #define DT_REL 17 /* address of rel. tbl. w addends */ | |
| 489 | #define DT_RELSZ 18 /* size of DT_REL relocation table */ | |
| 490 | #define DT_RELENT 19 /* size of DT_REL relocation entry */ | |
| 491 | #define DT_PLTREL 20 /* PLT referenced relocation entry */ | |
| 492 | #define DT_DEBUG 21 /* bugger */ | |
| 493 | #define DT_TEXTREL 22 /* Allow rel. mod. to unwritable seg */ | |
| 494 | #define DT_JMPREL 23 /* add. of PLT's relocation entries */ | |
| 495 | #define DT_BIND_NOW 24 /* Process relocations of object */ | |
| 496 | #define DT_INIT_ARRAY 25 /* Array with addresses of init fct */ | |
| 497 | #define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */ | |
| 498 | #define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */ | |
| 499 | #define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */ | |
| 500 | #define DT_RUNPATH 29 /* Library search path */ | |
| 501 | #define DT_FLAGS 30 /* Flags for the object being loaded */ | |
| 502 | #define DT_ENCODING 32 /* Start of encoded range */ | |
| 503 | #define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/ | |
| 504 | #define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */ | |
| 505 | #define DT_NUM 34 /* Number used. */ | |
| 506 | #define DT_LOOS 0x60000000 /* reserved range for OS */ | |
| 507 | #define DT_HIOS 0x6fffffff /* specific dynamic array tags */ | |
| 508 | #define DT_LOPROC 0x70000000 /* reserved range for processor */ | |
| 509 | #define DT_HIPROC 0x7fffffff /* specific dynamic array tags */ | |
| 510 | ||
| 511 | /* Dynamic Tag Flags - d_un.d_val */ | |
| 512 | #define DF_ORIGIN 0x01 /* Object may use DF_ORIGIN */ | |
| 513 | #define DF_SYMBOLIC 0x02 /* Symbol resolutions starts here */ | |
| 514 | #define DF_TEXTREL 0x04 /* Object contains text relocations */ | |
| 515 | #define DF_BIND_NOW 0x08 /* No lazy binding for this object */ | |
| 516 | #define DF_STATIC_TLS 0x10 /* Static thread local storage */ | |
| 517 | ||
| 518 | /* Standard ELF hashing function */ | |
| 519 | unsigned long elf_hash(const unsigned char *name); | |
| 520 | ||
| 521 | #define ELF_TARG_VER 1 /* The ver for which this code is intended */ | |
| 522 | ||
| 523 | /* | |
| 524 | * XXX - PowerPC defines really don't belong in here, | |
| 525 | * but we'll put them in for simplicity. | |
| 526 | */ | |
| 527 | ||
| 528 | /* Values for Elf32/64_Ehdr.e_flags. */ | |
| 529 | #define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */ | |
| 530 | ||
| 531 | /* Cygnus local bits below */ | |
| 532 | #define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/ | |
| 533 | #define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib | |
| 534 | flag */ | |
| 535 | ||
| 536 | /* PowerPC relocations defined by the ABIs */ | |
| 537 | #define R_PPC_NONE 0 | |
| 538 | #define R_PPC_ADDR32 1 /* 32bit absolute address */ | |
| 539 | #define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */ | |
| 540 | #define R_PPC_ADDR16 3 /* 16bit absolute address */ | |
| 541 | #define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */ | |
| 542 | #define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */ | |
| 543 | #define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */ | |
| 544 | #define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */ | |
| 545 | #define R_PPC_ADDR14_BRTAKEN 8 | |
| 546 | #define R_PPC_ADDR14_BRNTAKEN 9 | |
| 547 | #define R_PPC_REL24 10 /* PC relative 26 bit */ | |
| 548 | #define R_PPC_REL14 11 /* PC relative 16 bit */ | |
| 549 | #define R_PPC_REL14_BRTAKEN 12 | |
| 550 | #define R_PPC_REL14_BRNTAKEN 13 | |
| 551 | #define R_PPC_GOT16 14 | |
| 552 | #define R_PPC_GOT16_LO 15 | |
| 553 | #define R_PPC_GOT16_HI 16 | |
| 554 | #define R_PPC_GOT16_HA 17 | |
| 555 | #define R_PPC_PLTREL24 18 | |
| 556 | #define R_PPC_COPY 19 | |
| 557 | #define R_PPC_GLOB_DAT 20 | |
| 558 | #define R_PPC_JMP_SLOT 21 | |
| 559 | #define R_PPC_RELATIVE 22 | |
| 560 | #define R_PPC_LOCAL24PC 23 | |
| 561 | #define R_PPC_UADDR32 24 | |
| 562 | #define R_PPC_UADDR16 25 | |
| 563 | #define R_PPC_REL32 26 | |
| 564 | #define R_PPC_PLT32 27 | |
| 565 | #define R_PPC_PLTREL32 28 | |
| 566 | #define R_PPC_PLT16_LO 29 | |
| 567 | #define R_PPC_PLT16_HI 30 | |
| 568 | #define R_PPC_PLT16_HA 31 | |
| 569 | #define R_PPC_SDAREL16 32 | |
| 570 | #define R_PPC_SECTOFF 33 | |
| 571 | #define R_PPC_SECTOFF_LO 34 | |
| 572 | #define R_PPC_SECTOFF_HI 35 | |
| 573 | #define R_PPC_SECTOFF_HA 36 | |
| 574 | /* Keep this the last entry. */ | |
| 575 | #define R_PPC_NUM 37 | |
| 576 | ||
| 577 | /* The remaining relocs are from the Embedded ELF ABI, and are not | |
| 578 | in the SVR4 ELF ABI. */ | |
| 579 | #define R_PPC_EMB_NADDR32 101 | |
| 580 | #define R_PPC_EMB_NADDR16 102 | |
| 581 | #define R_PPC_EMB_NADDR16_LO 103 | |
| 582 | #define R_PPC_EMB_NADDR16_HI 104 | |
| 583 | #define R_PPC_EMB_NADDR16_HA 105 | |
| 584 | #define R_PPC_EMB_SDAI16 106 | |
| 585 | #define R_PPC_EMB_SDA2I16 107 | |
| 586 | #define R_PPC_EMB_SDA2REL 108 | |
| 587 | #define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */ | |
| 588 | #define R_PPC_EMB_MRKREF 110 | |
| 589 | #define R_PPC_EMB_RELSEC16 111 | |
| 590 | #define R_PPC_EMB_RELST_LO 112 | |
| 591 | #define R_PPC_EMB_RELST_HI 113 | |
| 592 | #define R_PPC_EMB_RELST_HA 114 | |
| 593 | #define R_PPC_EMB_BIT_FLD 115 | |
| 594 | #define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */ | |
| 595 | ||
| 596 | /* Diab tool relocations. */ | |
| 597 | #define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */ | |
| 598 | #define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */ | |
| 599 | #define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */ | |
| 600 | #define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */ | |
| 601 | #define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */ | |
| 602 | #define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */ | |
| 603 | ||
| 604 | /* This is a phony reloc to handle any old fashioned TOC16 references | |
| 605 | that may still be in object files. */ | |
| 606 | #define R_PPC_TOC16 255 | |
| 607 | ||
| 608 | #endif /* _ELF_H */ | |
| 609 |