Changes in kernel/generic/include/lib/elf.h [c0699467:e16e2ba4] in mainline
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kernel/generic/include/lib/elf.h
rc0699467 re16e2ba4 36 36 #define KERN_ELF_H_ 37 37 38 #include <arch/elf.h> 38 39 #include <typedefs.h> 39 #include <abi/elf.h> 40 #include <arch/elf.h> 40 41 /** 42 * current ELF version 43 */ 44 #define EV_CURRENT 1 45 46 /** 47 * ELF types 48 */ 49 #define ET_NONE 0 /* No type */ 50 #define ET_REL 1 /* Relocatable file */ 51 #define ET_EXEC 2 /* Executable */ 52 #define ET_DYN 3 /* Shared object */ 53 #define ET_CORE 4 /* Core */ 54 #define ET_LOPROC 0xff00 /* Processor specific */ 55 #define ET_HIPROC 0xffff /* Processor specific */ 56 57 /** 58 * ELF machine types 59 */ 60 #define EM_NO 0 /* No machine */ 61 #define EM_SPARC 2 /* SPARC */ 62 #define EM_386 3 /* i386 */ 63 #define EM_MIPS 8 /* MIPS RS3000 */ 64 #define EM_MIPS_RS3_LE 10 /* MIPS RS3000 LE */ 65 #define EM_PPC 20 /* PPC32 */ 66 #define EM_PPC64 21 /* PPC64 */ 67 #define EM_ARM 40 /* ARM */ 68 #define EM_SPARCV9 43 /* SPARC64 */ 69 #define EM_IA_64 50 /* IA-64 */ 70 #define EM_X86_64 62 /* AMD64/EMT64 */ 71 72 /** 73 * ELF identification indexes 74 */ 75 #define EI_MAG0 0 76 #define EI_MAG1 1 77 #define EI_MAG2 2 78 #define EI_MAG3 3 79 #define EI_CLASS 4 /* File class */ 80 #define EI_DATA 5 /* Data encoding */ 81 #define EI_VERSION 6 /* File version */ 82 #define EI_OSABI 7 83 #define EI_ABIVERSION 8 84 #define EI_PAD 9 /* Start of padding bytes */ 85 #define EI_NIDENT 16 /* ELF identification table size */ 86 87 /** 88 * ELF magic number 89 */ 90 #define ELFMAG0 0x7f 91 #define ELFMAG1 'E' 92 #define ELFMAG2 'L' 93 #define ELFMAG3 'F' 94 95 /** 96 * ELF file classes 97 */ 98 #define ELFCLASSNONE 0 99 #define ELFCLASS32 1 100 #define ELFCLASS64 2 101 102 /** 103 * ELF data encoding types 104 */ 105 #define ELFDATANONE 0 106 #define ELFDATA2LSB 1 /* Least significant byte first (little endian) */ 107 #define ELFDATA2MSB 2 /* Most signigicant byte first (big endian) */ 108 109 /** 110 * ELF section types 111 */ 112 #define SHT_NULL 0 113 #define SHT_PROGBITS 1 114 #define SHT_SYMTAB 2 115 #define SHT_STRTAB 3 116 #define SHT_RELA 4 117 #define SHT_HASH 5 118 #define SHT_DYNAMIC 6 119 #define SHT_NOTE 7 120 #define SHT_NOBITS 8 121 #define SHT_REL 9 122 #define SHT_SHLIB 10 123 #define SHT_DYNSYM 11 124 #define SHT_LOOS 0x60000000 125 #define SHT_HIOS 0x6fffffff 126 #define SHT_LOPROC 0x70000000 127 #define SHT_HIPROC 0x7fffffff 128 #define SHT_LOUSER 0x80000000 129 #define SHT_HIUSER 0xffffffff 130 131 /** 132 * ELF section flags 133 */ 134 #define SHF_WRITE 0x1 135 #define SHF_ALLOC 0x2 136 #define SHF_EXECINSTR 0x4 137 #define SHF_TLS 0x400 138 #define SHF_MASKPROC 0xf0000000 139 140 /** Macros for decomposing elf_symbol.st_info into binging and type */ 141 #define ELF_ST_BIND(i) ((i) >> 4) 142 #define ELF_ST_TYPE(i) ((i) & 0x0f) 143 #define ELF_ST_INFO(b, t) (((b) << 4) + ((t) & 0x0f)) 144 145 /** 146 * Symbol binding 147 */ 148 #define STB_LOCAL 0 149 #define STB_GLOBAL 1 150 #define STB_WEAK 2 151 #define STB_LOPROC 13 152 #define STB_HIPROC 15 153 154 /** 155 * Symbol types 156 */ 157 #define STT_NOTYPE 0 158 #define STT_OBJECT 1 159 #define STT_FUNC 2 160 #define STT_SECTION 3 161 #define STT_FILE 4 162 #define STT_LOPROC 13 163 #define STT_HIPROC 15 164 165 /** 166 * Program segment types 167 */ 168 #define PT_NULL 0 169 #define PT_LOAD 1 170 #define PT_DYNAMIC 2 171 #define PT_INTERP 3 172 #define PT_NOTE 4 173 #define PT_SHLIB 5 174 #define PT_PHDR 6 175 #define PT_LOPROC 0x70000000 176 #define PT_HIPROC 0x7fffffff 177 178 /** 179 * Program segment attributes. 180 */ 181 #define PF_X 1 182 #define PF_W 2 183 #define PF_R 4 184 185 /** 186 * ELF data types 187 * 188 * These types are found to be identical in both 32-bit and 64-bit 189 * ELF object file specifications. They are the only types used 190 * in ELF header. 191 */ 192 typedef uint64_t elf_xword; 193 typedef int64_t elf_sxword; 194 typedef uint32_t elf_word; 195 typedef int32_t elf_sword; 196 typedef uint16_t elf_half; 197 198 /** 199 * 32-bit ELF data types. 200 * 201 * These types are specific for 32-bit format. 202 */ 203 typedef uint32_t elf32_addr; 204 typedef uint32_t elf32_off; 205 206 /** 207 * 64-bit ELF data types. 208 * 209 * These types are specific for 64-bit format. 210 */ 211 typedef uint64_t elf64_addr; 212 typedef uint64_t elf64_off; 213 214 /** ELF header */ 215 struct elf32_header { 216 uint8_t e_ident[EI_NIDENT]; 217 elf_half e_type; 218 elf_half e_machine; 219 elf_word e_version; 220 elf32_addr e_entry; 221 elf32_off e_phoff; 222 elf32_off e_shoff; 223 elf_word e_flags; 224 elf_half e_ehsize; 225 elf_half e_phentsize; 226 elf_half e_phnum; 227 elf_half e_shentsize; 228 elf_half e_shnum; 229 elf_half e_shstrndx; 230 }; 231 struct elf64_header { 232 uint8_t e_ident[EI_NIDENT]; 233 elf_half e_type; 234 elf_half e_machine; 235 elf_word e_version; 236 elf64_addr e_entry; 237 elf64_off e_phoff; 238 elf64_off e_shoff; 239 elf_word e_flags; 240 elf_half e_ehsize; 241 elf_half e_phentsize; 242 elf_half e_phnum; 243 elf_half e_shentsize; 244 elf_half e_shnum; 245 elf_half e_shstrndx; 246 }; 247 248 /* 249 * ELF segment header. 250 * Segments headers are also known as program headers. 251 */ 252 struct elf32_segment_header { 253 elf_word p_type; 254 elf32_off p_offset; 255 elf32_addr p_vaddr; 256 elf32_addr p_paddr; 257 elf_word p_filesz; 258 elf_word p_memsz; 259 elf_word p_flags; 260 elf_word p_align; 261 }; 262 struct elf64_segment_header { 263 elf_word p_type; 264 elf_word p_flags; 265 elf64_off p_offset; 266 elf64_addr p_vaddr; 267 elf64_addr p_paddr; 268 elf_xword p_filesz; 269 elf_xword p_memsz; 270 elf_xword p_align; 271 }; 272 273 /* 274 * ELF section header 275 */ 276 struct elf32_section_header { 277 elf_word sh_name; 278 elf_word sh_type; 279 elf_word sh_flags; 280 elf32_addr sh_addr; 281 elf32_off sh_offset; 282 elf_word sh_size; 283 elf_word sh_link; 284 elf_word sh_info; 285 elf_word sh_addralign; 286 elf_word sh_entsize; 287 }; 288 struct elf64_section_header { 289 elf_word sh_name; 290 elf_word sh_type; 291 elf_xword sh_flags; 292 elf64_addr sh_addr; 293 elf64_off sh_offset; 294 elf_xword sh_size; 295 elf_word sh_link; 296 elf_word sh_info; 297 elf_xword sh_addralign; 298 elf_xword sh_entsize; 299 }; 300 301 /* 302 * ELF symbol table entry 303 */ 304 struct elf32_symbol { 305 elf_word st_name; 306 elf32_addr st_value; 307 elf_word st_size; 308 uint8_t st_info; 309 uint8_t st_other; 310 elf_half st_shndx; 311 }; 312 struct elf64_symbol { 313 elf_word st_name; 314 uint8_t st_info; 315 uint8_t st_other; 316 elf_half st_shndx; 317 elf64_addr st_value; 318 elf_xword st_size; 319 }; 320 321 /* 322 * ELF note segment entry 323 */ 324 struct elf32_note { 325 elf_word namesz; 326 elf_word descsz; 327 elf_word type; 328 }; 329 struct elf64_note { 330 elf_xword namesz; 331 elf_xword descsz; 332 elf_xword type; 333 }; 334 335 #ifdef __32_BITS__ 336 typedef struct elf32_header elf_header_t; 337 typedef struct elf32_segment_header elf_segment_header_t; 338 typedef struct elf32_section_header elf_section_header_t; 339 typedef struct elf32_symbol elf_symbol_t; 340 typedef struct elf32_note elf_note_t; 341 #endif 342 #ifdef __64_BITS__ 343 typedef struct elf64_header elf_header_t; 344 typedef struct elf64_segment_header elf_segment_header_t; 345 typedef struct elf64_section_header elf_section_header_t; 346 typedef struct elf64_symbol elf_symbol_t; 347 typedef struct elf64_note elf_note_t; 348 #endif 41 349 42 350 /** Interpreter string used to recognize the program loader */
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