1 #ifndef _UAPI_LINUX_ELF_H 2 #define _UAPI_LINUX_ELF_H 3 4 #include <linux/types.h> 5 #include <linux/elf-em.h> 6 7 /* 32-bit ELF base types. */ 8 typedef __u32 Elf32_Addr; 9 typedef __u16 Elf32_Half; 10 typedef __u32 Elf32_Off; 11 typedef __s32 Elf32_Sword; 12 typedef __u32 Elf32_Word; 13 14 /* 64-bit ELF base types. */ 15 typedef __u64 Elf64_Addr; 16 typedef __u16 Elf64_Half; 17 typedef __s16 Elf64_SHalf; 18 typedef __u64 Elf64_Off; 19 typedef __s32 Elf64_Sword; 20 typedef __u32 Elf64_Word; 21 typedef __u64 Elf64_Xword; 22 typedef __s64 Elf64_Sxword; 23 24 /* These constants are for the segment types stored in the image headers */ 25 #define PT_NULL 0 26 #define PT_LOAD 1 27 #define PT_DYNAMIC 2 28 #define PT_INTERP 3 29 #define PT_NOTE 4 30 #define PT_SHLIB 5 31 #define PT_PHDR 6 32 #define PT_TLS 7 /* Thread local storage segment */ 33 #define PT_LOOS 0x60000000 /* OS-specific */ 34 #define PT_HIOS 0x6fffffff /* OS-specific */ 35 #define PT_LOPROC 0x70000000 36 #define PT_HIPROC 0x7fffffff 37 #define PT_GNU_EH_FRAME 0x6474e550 38 39 #define PT_GNU_STACK (PT_LOOS + 0x474e551) 40 41 /* 42 * Extended Numbering 43 * 44 * If the real number of program header table entries is larger than 45 * or equal to PN_XNUM(0xffff), it is set to sh_info field of the 46 * section header at index 0, and PN_XNUM is set to e_phnum 47 * field. Otherwise, the section header at index 0 is zero 48 * initialized, if it exists. 49 * 50 * Specifications are available in: 51 * 52 * - Oracle: Linker and Libraries. 53 * Part No: 817–1984–19, August 2011. 54 * http://docs.oracle.com/cd/E18752_01/pdf/817-1984.pdf 55 * 56 * - System V ABI AMD64 Architecture Processor Supplement 57 * Draft Version 0.99.4, 58 * January 13, 2010. 59 * http://www.cs.washington.edu/education/courses/cse351/12wi/supp-docs/abi.pdf 60 */ 61 #define PN_XNUM 0xffff 62 63 /* These constants define the different elf file types */ 64 #define ET_NONE 0 65 #define ET_REL 1 66 #define ET_EXEC 2 67 #define ET_DYN 3 68 #define ET_CORE 4 69 #define ET_LOPROC 0xff00 70 #define ET_HIPROC 0xffff 71 72 /* This is the info that is needed to parse the dynamic section of the file */ 73 #define DT_NULL 0 74 #define DT_NEEDED 1 75 #define DT_PLTRELSZ 2 76 #define DT_PLTGOT 3 77 #define DT_HASH 4 78 #define DT_STRTAB 5 79 #define DT_SYMTAB 6 80 #define DT_RELA 7 81 #define DT_RELASZ 8 82 #define DT_RELAENT 9 83 #define DT_STRSZ 10 84 #define DT_SYMENT 11 85 #define DT_INIT 12 86 #define DT_FINI 13 87 #define DT_SONAME 14 88 #define DT_RPATH 15 89 #define DT_SYMBOLIC 16 90 #define DT_REL 17 91 #define DT_RELSZ 18 92 #define DT_RELENT 19 93 #define DT_PLTREL 20 94 #define DT_DEBUG 21 95 #define DT_TEXTREL 22 96 #define DT_JMPREL 23 97 #define DT_ENCODING 32 98 #define OLD_DT_LOOS 0x60000000 99 #define DT_LOOS 0x6000000d 100 #define DT_HIOS 0x6ffff000 101 #define DT_VALRNGLO 0x6ffffd00 102 #define DT_VALRNGHI 0x6ffffdff 103 #define DT_ADDRRNGLO 0x6ffffe00 104 #define DT_ADDRRNGHI 0x6ffffeff 105 #define DT_VERSYM 0x6ffffff0 106 #define DT_RELACOUNT 0x6ffffff9 107 #define DT_RELCOUNT 0x6ffffffa 108 #define DT_FLAGS_1 0x6ffffffb 109 #define DT_VERDEF 0x6ffffffc 110 #define DT_VERDEFNUM 0x6ffffffd 111 #define DT_VERNEED 0x6ffffffe 112 #define DT_VERNEEDNUM 0x6fffffff 113 #define OLD_DT_HIOS 0x6fffffff 114 #define DT_LOPROC 0x70000000 115 #define DT_HIPROC 0x7fffffff 116 117 /* This info is needed when parsing the symbol table */ 118 #define STB_LOCAL 0 119 #define STB_GLOBAL 1 120 #define STB_WEAK 2 121 122 #define STT_NOTYPE 0 123 #define STT_OBJECT 1 124 #define STT_FUNC 2 125 #define STT_SECTION 3 126 #define STT_FILE 4 127 #define STT_COMMON 5 128 #define STT_TLS 6 129 130 #define ELF_ST_BIND(x) ((x) >> 4) 131 #define ELF_ST_TYPE(x) (((unsigned int) x) & 0xf) 132 #define ELF32_ST_BIND(x) ELF_ST_BIND(x) 133 #define ELF32_ST_TYPE(x) ELF_ST_TYPE(x) 134 #define ELF64_ST_BIND(x) ELF_ST_BIND(x) 135 #define ELF64_ST_TYPE(x) ELF_ST_TYPE(x) 136 137 typedef struct dynamic{ 138 Elf32_Sword d_tag; 139 union{ 140 Elf32_Sword d_val; 141 Elf32_Addr d_ptr; 142 } d_un; 143 } Elf32_Dyn; 144 145 typedef struct { 146 Elf64_Sxword d_tag; /* entry tag value */ 147 union { 148 Elf64_Xword d_val; 149 Elf64_Addr d_ptr; 150 } d_un; 151 } Elf64_Dyn; 152 153 /* The following are used with relocations */ 154 #define ELF32_R_SYM(x) ((x) >> 8) 155 #define ELF32_R_TYPE(x) ((x) & 0xff) 156 157 #define ELF64_R_SYM(i) ((i) >> 32) 158 #define ELF64_R_TYPE(i) ((i) & 0xffffffff) 159 160 typedef struct elf32_rel { 161 Elf32_Addr r_offset; 162 Elf32_Word r_info; 163 } Elf32_Rel; 164 165 typedef struct elf64_rel { 166 Elf64_Addr r_offset; /* Location at which to apply the action */ 167 Elf64_Xword r_info; /* index and type of relocation */ 168 } Elf64_Rel; 169 170 typedef struct elf32_rela{ 171 Elf32_Addr r_offset; 172 Elf32_Word r_info; 173 Elf32_Sword r_addend; 174 } Elf32_Rela; 175 176 typedef struct elf64_rela { 177 Elf64_Addr r_offset; /* Location at which to apply the action */ 178 Elf64_Xword r_info; /* index and type of relocation */ 179 Elf64_Sxword r_addend; /* Constant addend used to compute value */ 180 } Elf64_Rela; 181 182 typedef struct elf32_sym{ 183 Elf32_Word st_name; 184 Elf32_Addr st_value; 185 Elf32_Word st_size; 186 unsigned char st_info; 187 unsigned char st_other; 188 Elf32_Half st_shndx; 189 } Elf32_Sym; 190 191 typedef struct elf64_sym { 192 Elf64_Word st_name; /* Symbol name, index in string tbl */ 193 unsigned char st_info; /* Type and binding attributes */ 194 unsigned char st_other; /* No defined meaning, 0 */ 195 Elf64_Half st_shndx; /* Associated section index */ 196 Elf64_Addr st_value; /* Value of the symbol */ 197 Elf64_Xword st_size; /* Associated symbol size */ 198 } Elf64_Sym; 199 200 201 #define EI_NIDENT 16 202 203 typedef struct elf32_hdr{ 204 unsigned char e_ident[EI_NIDENT]; 205 Elf32_Half e_type; 206 Elf32_Half e_machine; 207 Elf32_Word e_version; 208 Elf32_Addr e_entry; /* Entry point */ 209 Elf32_Off e_phoff; 210 Elf32_Off e_shoff; 211 Elf32_Word e_flags; 212 Elf32_Half e_ehsize; 213 Elf32_Half e_phentsize; 214 Elf32_Half e_phnum; 215 Elf32_Half e_shentsize; 216 Elf32_Half e_shnum; 217 Elf32_Half e_shstrndx; 218 } Elf32_Ehdr; 219 220 typedef struct elf64_hdr { 221 unsigned char e_ident[EI_NIDENT]; /* ELF "magic number" */ 222 Elf64_Half e_type; 223 Elf64_Half e_machine; 224 Elf64_Word e_version; 225 Elf64_Addr e_entry; /* Entry point virtual address */ 226 Elf64_Off e_phoff; /* Program header table file offset */ 227 Elf64_Off e_shoff; /* Section header table file offset */ 228 Elf64_Word e_flags; 229 Elf64_Half e_ehsize; 230 Elf64_Half e_phentsize; 231 Elf64_Half e_phnum; 232 Elf64_Half e_shentsize; 233 Elf64_Half e_shnum; 234 Elf64_Half e_shstrndx; 235 } Elf64_Ehdr; 236 237 /* These constants define the permissions on sections in the program 238 header, p_flags. */ 239 #define PF_R 0x4 240 #define PF_W 0x2 241 #define PF_X 0x1 242 243 typedef struct elf32_phdr{ 244 Elf32_Word p_type; 245 Elf32_Off p_offset; 246 Elf32_Addr p_vaddr; 247 Elf32_Addr p_paddr; 248 Elf32_Word p_filesz; 249 Elf32_Word p_memsz; 250 Elf32_Word p_flags; 251 Elf32_Word p_align; 252 } Elf32_Phdr; 253 254 typedef struct elf64_phdr { 255 Elf64_Word p_type; 256 Elf64_Word p_flags; 257 Elf64_Off p_offset; /* Segment file offset */ 258 Elf64_Addr p_vaddr; /* Segment virtual address */ 259 Elf64_Addr p_paddr; /* Segment physical address */ 260 Elf64_Xword p_filesz; /* Segment size in file */ 261 Elf64_Xword p_memsz; /* Segment size in memory */ 262 Elf64_Xword p_align; /* Segment alignment, file & memory */ 263 } Elf64_Phdr; 264 265 /* sh_type */ 266 #define SHT_NULL 0 267 #define SHT_PROGBITS 1 268 #define SHT_SYMTAB 2 269 #define SHT_STRTAB 3 270 #define SHT_RELA 4 271 #define SHT_HASH 5 272 #define SHT_DYNAMIC 6 273 #define SHT_NOTE 7 274 #define SHT_NOBITS 8 275 #define SHT_REL 9 276 #define SHT_SHLIB 10 277 #define SHT_DYNSYM 11 278 #define SHT_NUM 12 279 #define SHT_LOPROC 0x70000000 280 #define SHT_HIPROC 0x7fffffff 281 #define SHT_LOUSER 0x80000000 282 #define SHT_HIUSER 0xffffffff 283 284 /* sh_flags */ 285 #define SHF_WRITE 0x1 286 #define SHF_ALLOC 0x2 287 #define SHF_EXECINSTR 0x4 288 #define SHF_RELA_LIVEPATCH 0x00100000 289 #define SHF_RO_AFTER_INIT 0x00200000 290 #define SHF_MASKPROC 0xf0000000 291 292 /* special section indexes */ 293 #define SHN_UNDEF 0 294 #define SHN_LORESERVE 0xff00 295 #define SHN_LOPROC 0xff00 296 #define SHN_HIPROC 0xff1f 297 #define SHN_LIVEPATCH 0xff20 298 #define SHN_ABS 0xfff1 299 #define SHN_COMMON 0xfff2 300 #define SHN_HIRESERVE 0xffff 301 302 typedef struct elf32_shdr { 303 Elf32_Word sh_name; 304 Elf32_Word sh_type; 305 Elf32_Word sh_flags; 306 Elf32_Addr sh_addr; 307 Elf32_Off sh_offset; 308 Elf32_Word sh_size; 309 Elf32_Word sh_link; 310 Elf32_Word sh_info; 311 Elf32_Word sh_addralign; 312 Elf32_Word sh_entsize; 313 } Elf32_Shdr; 314 315 typedef struct elf64_shdr { 316 Elf64_Word sh_name; /* Section name, index in string tbl */ 317 Elf64_Word sh_type; /* Type of section */ 318 Elf64_Xword sh_flags; /* Miscellaneous section attributes */ 319 Elf64_Addr sh_addr; /* Section virtual addr at execution */ 320 Elf64_Off sh_offset; /* Section file offset */ 321 Elf64_Xword sh_size; /* Size of section in bytes */ 322 Elf64_Word sh_link; /* Index of another section */ 323 Elf64_Word sh_info; /* Additional section information */ 324 Elf64_Xword sh_addralign; /* Section alignment */ 325 Elf64_Xword sh_entsize; /* Entry size if section holds table */ 326 } Elf64_Shdr; 327 328 #define EI_MAG0 0 /* e_ident[] indexes */ 329 #define EI_MAG1 1 330 #define EI_MAG2 2 331 #define EI_MAG3 3 332 #define EI_CLASS 4 333 #define EI_DATA 5 334 #define EI_VERSION 6 335 #define EI_OSABI 7 336 #define EI_PAD 8 337 338 #define ELFMAG0 0x7f /* EI_MAG */ 339 #define ELFMAG1 'E' 340 #define ELFMAG2 'L' 341 #define ELFMAG3 'F' 342 #define ELFMAG "\177ELF" 343 #define SELFMAG 4 344 345 #define ELFCLASSNONE 0 /* EI_CLASS */ 346 #define ELFCLASS32 1 347 #define ELFCLASS64 2 348 #define ELFCLASSNUM 3 349 350 #define ELFDATANONE 0 /* e_ident[EI_DATA] */ 351 #define ELFDATA2LSB 1 352 #define ELFDATA2MSB 2 353 354 #define EV_NONE 0 /* e_version, EI_VERSION */ 355 #define EV_CURRENT 1 356 #define EV_NUM 2 357 358 #define ELFOSABI_NONE 0 359 #define ELFOSABI_LINUX 3 360 361 #ifndef ELF_OSABI 362 #define ELF_OSABI ELFOSABI_NONE 363 #endif 364 365 /* 366 * Notes used in ET_CORE. Architectures export some of the arch register sets 367 * using the corresponding note types via the PTRACE_GETREGSET and 368 * PTRACE_SETREGSET requests. 369 */ 370 #define NT_PRSTATUS 1 371 #define NT_PRFPREG 2 372 #define NT_PRPSINFO 3 373 #define NT_TASKSTRUCT 4 374 #define NT_AUXV 6 375 /* 376 * Note to userspace developers: size of NT_SIGINFO note may increase 377 * in the future to accomodate more fields, don't assume it is fixed! 378 */ 379 #define NT_SIGINFO 0x53494749 380 #define NT_FILE 0x46494c45 381 #define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */ 382 #define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */ 383 #define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */ 384 #define NT_PPC_VSX 0x102 /* PowerPC VSX registers */ 385 #define NT_PPC_TAR 0x103 /* Target Address Register */ 386 #define NT_PPC_PPR 0x104 /* Program Priority Register */ 387 #define NT_PPC_DSCR 0x105 /* Data Stream Control Register */ 388 #define NT_PPC_EBB 0x106 /* Event Based Branch Registers */ 389 #define NT_PPC_PMU 0x107 /* Performance Monitor Registers */ 390 #define NT_PPC_TM_CGPR 0x108 /* TM checkpointed GPR Registers */ 391 #define NT_PPC_TM_CFPR 0x109 /* TM checkpointed FPR Registers */ 392 #define NT_PPC_TM_CVMX 0x10a /* TM checkpointed VMX Registers */ 393 #define NT_PPC_TM_CVSX 0x10b /* TM checkpointed VSX Registers */ 394 #define NT_PPC_TM_SPR 0x10c /* TM Special Purpose Registers */ 395 #define NT_PPC_TM_CTAR 0x10d /* TM checkpointed Target Address Register */ 396 #define NT_PPC_TM_CPPR 0x10e /* TM checkpointed Program Priority Register */ 397 #define NT_PPC_TM_CDSCR 0x10f /* TM checkpointed Data Stream Control Register */ 398 #define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */ 399 #define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */ 400 #define NT_X86_XSTATE 0x202 /* x86 extended state using xsave */ 401 #define NT_S390_HIGH_GPRS 0x300 /* s390 upper register halves */ 402 #define NT_S390_TIMER 0x301 /* s390 timer register */ 403 #define NT_S390_TODCMP 0x302 /* s390 TOD clock comparator register */ 404 #define NT_S390_TODPREG 0x303 /* s390 TOD programmable register */ 405 #define NT_S390_CTRS 0x304 /* s390 control registers */ 406 #define NT_S390_PREFIX 0x305 /* s390 prefix register */ 407 #define NT_S390_LAST_BREAK 0x306 /* s390 breaking event address */ 408 #define NT_S390_SYSTEM_CALL 0x307 /* s390 system call restart data */ 409 #define NT_S390_TDB 0x308 /* s390 transaction diagnostic block */ 410 #define NT_S390_VXRS_LOW 0x309 /* s390 vector registers 0-15 upper half */ 411 #define NT_S390_VXRS_HIGH 0x30a /* s390 vector registers 16-31 */ 412 #define NT_ARM_VFP 0x400 /* ARM VFP/NEON registers */ 413 #define NT_ARM_TLS 0x401 /* ARM TLS register */ 414 #define NT_ARM_HW_BREAK 0x402 /* ARM hardware breakpoint registers */ 415 #define NT_ARM_HW_WATCH 0x403 /* ARM hardware watchpoint registers */ 416 #define NT_ARM_SYSTEM_CALL 0x404 /* ARM system call number */ 417 #define NT_METAG_CBUF 0x500 /* Metag catch buffer registers */ 418 #define NT_METAG_RPIPE 0x501 /* Metag read pipeline state */ 419 #define NT_METAG_TLS 0x502 /* Metag TLS pointer */ 420 421 422 /* Note header in a PT_NOTE section */ 423 typedef struct elf32_note { 424 Elf32_Word n_namesz; /* Name size */ 425 Elf32_Word n_descsz; /* Content size */ 426 Elf32_Word n_type; /* Content type */ 427 } Elf32_Nhdr; 428 429 /* Note header in a PT_NOTE section */ 430 typedef struct elf64_note { 431 Elf64_Word n_namesz; /* Name size */ 432 Elf64_Word n_descsz; /* Content size */ 433 Elf64_Word n_type; /* Content type */ 434 } Elf64_Nhdr; 435 436 #endif /* _UAPI_LINUX_ELF_H */ 437