elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright 2006, 2007, Free Software Foundation, Inc.
   4 // Written by Ian Lance Taylor <iant@google.com>.
   5
   6 // This file is part of elfcpp.
   7
   8 // This program is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU Library General Public License
  10 // as published by the Free Software Foundation; either version 2, or
  11 // (at your option) any later version.
  12
  13 // In addition to the permissions in the GNU Library General Public
  14 // License, the Free Software Foundation gives you unlimited
  15 // permission to link the compiled version of this file into
  16 // combinations with other programs, and to distribute those
  17 // combinations without any restriction coming from the use of this
  18 // file.  (The Library Public License restrictions do apply in other
  19 // respects; for example, they cover modification of the file, and
  20 /// distribution when not linked into a combined executable.)
  21
  22 // This program is distributed in the hope that it will be useful, but
  23 // WITHOUT ANY WARRANTY; without even the implied warranty of
  24 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  25 // Library General Public License for more details.
  26
  27 // You should have received a copy of the GNU Library General Public
  28 // License along with this program; if not, write to the Free Software
  29 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  30 // 02110-1301, USA.
  31
  32 // This is the external interface for elfcpp.
  33
  34 #ifndef ELFCPP_H
  35 #define ELFCPP_H
  36
  37 #include "elfcpp_swap.h"
  38
  39 #include <stdint.h>
  40
  41 namespace elfcpp
  42 {
  43
  44 // Basic ELF types.
  45
  46 // These types are always the same size.
  47
  48 typedef uint16_t Elf_Half;
  49 typedef uint32_t Elf_Word;
  50 typedef int32_t Elf_Sword;
  51 typedef uint64_t Elf_Xword;
  52 typedef int64_t Elf_Sxword;
  53
  54 // These types vary in size depending on the ELF file class.  The
  55 // template parameter should be 32 or 64.
  56
  57 template<int size>
  58 struct Elf_types;
  59
  60 template<>
  61 struct Elf_types<32>
  62 {
  63   typedef uint32_t Elf_Addr;
  64   typedef uint32_t Elf_Off;
  65   typedef uint32_t Elf_WXword;
  66   typedef int32_t Elf_Swxword;
  67 };
  68
  69 template<>
  70 struct Elf_types<64>
  71 {
  72   typedef uint64_t Elf_Addr;
  73   typedef uint64_t Elf_Off;
  74   typedef uint64_t Elf_WXword;
  75   typedef int64_t Elf_Swxword;
  76 };
  77
  78 // Offsets within the Ehdr e_ident field.
  79
  80 const int EI_MAG0 = 0;
  81 const int EI_MAG1 = 1;
  82 const int EI_MAG2 = 2;
  83 const int EI_MAG3 = 3;
  84 const int EI_CLASS = 4;
  85 const int EI_DATA = 5;
  86 const int EI_VERSION = 6;
  87 const int EI_OSABI = 7;
  88 const int EI_ABIVERSION = 8;
  89 const int EI_PAD = 9;
  90 const int EI_NIDENT = 16;
  91
  92 // The valid values found in Ehdr e_ident[EI_MAG0 through EI_MAG3].
  93
  94 const int ELFMAG0 = 0x7f;
  95 const int ELFMAG1 = 'E';
  96 const int ELFMAG2 = 'L';
  97 const int ELFMAG3 = 'F';
  98
  99 // The valid values found in Ehdr e_ident[EI_CLASS].
 100
 101 enum
 102 {
 103   ELFCLASSNONE = 0,
 104   ELFCLASS32 = 1,
 105   ELFCLASS64 = 2
 106 };
 107
 108 // The valid values found in Ehdr e_ident[EI_DATA].
 109
 110 enum
 111 {
 112   ELFDATANONE = 0,
 113   ELFDATA2LSB = 1,
 114   ELFDATA2MSB = 2
 115 };
 116
 117 // The valid values found in Ehdr e_ident[EI_VERSION] and e_version.
 118
 119 enum
 120 {
 121   EV_NONE = 0,
 122   EV_CURRENT = 1
 123 };
 124
 125 // The valid values found in Ehdr e_ident[EI_OSABI].
 126
 127 enum ELFOSABI
 128 {
 129   ELFOSABI_NONE = 0,
 130   ELFOSABI_HPUX = 1,
 131   ELFOSABI_NETBSD = 2,
 132   // ELFOSABI_LINUX is not listed in the ELF standard.
 133   ELFOSABI_LINUX = 3,
 134   // ELFOSABI_HURD is not listed in the ELF standard.
 135   ELFOSABI_HURD = 4,
 136   ELFOSABI_SOLARIS = 6,
 137   ELFOSABI_AIX = 7,
 138   ELFOSABI_IRIX = 8,
 139   ELFOSABI_FREEBSD = 9,
 140   ELFOSABI_TRU64 = 10,
 141   ELFOSABI_MODESTO = 11,
 142   ELFOSABI_OPENBSD = 12,
 143   ELFOSABI_OPENVMS = 13,
 144   ELFOSABI_NSK = 14,
 145   ELFOSABI_AROS = 15,
 146   // A GNU extension for the ARM.
 147   ELFOSABI_ARM = 97,
 148   // A GNU extension for the MSP.
 149   ELFOSABI_STANDALONE = 255
 150 };
 151
 152 // The valid values found in the Ehdr e_type field.
 153
 154 enum ET
 155 {
 156   ET_NONE = 0,
 157   ET_REL = 1,
 158   ET_EXEC = 2,
 159   ET_DYN = 3,
 160   ET_CORE = 4,
 161   ET_LOOS = 0xfe00,
 162   ET_HIOS = 0xfeff,
 163   ET_LOPROC = 0xff00,
 164   ET_HIPROC = 0xffff
 165 };
 166
 167 // The valid values found in the Ehdr e_machine field.
 168
 169 enum EM
 170 {
 171   EM_NONE = 0,
 172   EM_M32 = 1,
 173   EM_SPARC = 2,
 174   EM_386 = 3,
 175   EM_68K = 4,
 176   EM_88K = 5,
 177   // 6 used to be EM_486
 178   EM_860 = 7,
 179   EM_MIPS = 8,
 180   EM_S370 = 9,
 181   EM_MIPS_RS3_LE = 10,
 182   // 11 was the old Sparc V9 ABI.
 183   // 12 through 14 are reserved.
 184   EM_PARISC = 15,
 185   // 16 is reserved.
 186   // Some old PowerPC object files use 17.
 187   EM_VPP500 = 17,
 188   EM_SPARC32PLUS = 18,
 189   EM_960 = 19,
 190   EM_PPC = 20,
 191   EM_PPC64 = 21,
 192   EM_S390 = 22,
 193   // 23 through 35 are served.
 194   EM_V800 = 36,
 195   EM_FR20 = 37,
 196   EM_RH32 = 38,
 197   EM_RCE = 39,
 198   EM_ARM = 40,
 199   EM_ALPHA = 41,
 200   EM_SH = 42,
 201   EM_SPARCV9 = 43,
 202   EM_TRICORE = 44,
 203   EM_ARC = 45,
 204   EM_H8_300 = 46,
 205   EM_H8_300H = 47,
 206   EM_H8S = 48,
 207   EM_H8_500 = 49,
 208   EM_IA_64 = 50,
 209   EM_MIPS_X = 51,
 210   EM_COLDFIRE = 52,
 211   EM_68HC12 = 53,
 212   EM_MMA = 54,
 213   EM_PCP = 55,
 214   EM_NCPU = 56,
 215   EM_NDR1 = 57,
 216   EM_STARCORE = 58,
 217   EM_ME16 = 59,
 218   EM_ST100 = 60,
 219   EM_TINYJ = 61,
 220   EM_X86_64 = 62,
 221   EM_PDSP = 63,
 222   EM_PDP10 = 64,
 223   EM_PDP11 = 65,
 224   EM_FX66 = 66,
 225   EM_ST9PLUS = 67,
 226   EM_ST7 = 68,
 227   EM_68HC16 = 69,
 228   EM_68HC11 = 70,
 229   EM_68HC08 = 71,
 230   EM_68HC05 = 72,
 231   EM_SVX = 73,
 232   EM_ST19 = 74,
 233   EM_VAX = 75,
 234   EM_CRIS = 76,
 235   EM_JAVELIN = 77,
 236   EM_FIREPATH = 78,
 237   EM_ZSP = 79,
 238   EM_MMIX = 80,
 239   EM_HUANY = 81,
 240   EM_PRISM = 82,
 241   EM_AVR = 83,
 242   EM_FR30 = 84,
 243   EM_D10V = 85,
 244   EM_D30V = 86,
 245   EM_V850 = 87,
 246   EM_M32R = 88,
 247   EM_MN10300 = 89,
 248   EM_MN10200 = 90,
 249   EM_PJ = 91,
 250   EM_OPENRISC = 92,
 251   EM_ARC_A5 = 93,
 252   EM_XTENSA = 94,
 253   EM_VIDEOCORE = 95,
 254   EM_TMM_GPP = 96,
 255   EM_NS32K = 97,
 256   EM_TPC = 98,
 257   // Some old picoJava object files use 99 (EM_PJ is correct).
 258   EM_SNP1K = 99,
 259   EM_ST200 = 100,
 260   EM_IP2K = 101,
 261   EM_MAX = 102,
 262   EM_CR = 103,
 263   EM_F2MC16 = 104,
 264   EM_MSP430 = 105,
 265   EM_BLACKFIN = 106,
 266   EM_SE_C33 = 107,
 267   EM_SEP = 108,
 268   EM_ARCA = 109,
 269   EM_UNICORE = 110,
 270   EM_ALTERA_NIOS2 = 113,
 271   EM_CRX = 114,
 272   // The Morph MT.
 273   EM_MT = 0x2530,
 274   // DLX.
 275   EM_DLX = 0x5aa5,
 276   // FRV.
 277   EM_FRV = 0x5441,
 278   // Infineon Technologies 16-bit microcontroller with C166-V2 core.
 279   EM_X16X = 0x4688,
 280   // Xstorym16
 281   EM_XSTORMY16 = 0xad45,
 282   // Renesas M32C
 283   EM_M32C = 0xfeb0,
 284   // Vitesse IQ2000
 285   EM_IQ2000 = 0xfeba,
 286   // NIOS
 287   EM_NIOS32 = 0xfebb
 288   // Old AVR objects used 0x1057 (EM_AVR is correct).
 289   // Old MSP430 objects used 0x1059 (EM_MSP430 is correct).
 290   // Old FR30 objects used 0x3330 (EM_FR30 is correct).
 291   // Old OpenRISC objects used 0x3426 and 0x8472 (EM_OPENRISC is correct).
 292   // Old D10V objects used 0x7650 (EM_D10V is correct).
 293   // Old D30V objects used 0x7676 (EM_D30V is correct).
 294   // Old IP2X objects used 0x8217 (EM_IP2K is correct).
 295   // Old PowerPC objects used 0x9025 (EM_PPC is correct).
 296   // Old Alpha objects used 0x9026 (EM_ALPHA is correct).
 297   // Old M32R objects used 0x9041 (EM_M32R is correct).
 298   // Old V850 objects used 0x9080 (EM_V850 is correct).
 299   // Old S/390 objects used 0xa390 (EM_S390 is correct).
 300   // Old Xtensa objects used 0xabc7 (EM_XTENSA is correct).
 301   // Old MN10300 objects used 0xbeef (EM_MN10300 is correct).
 302   // Old MN10200 objects used 0xdead (EM_MN10200 is correct).
 303 };
 304
 305 // Special section indices.
 306
 307 enum
 308 {
 309   SHN_UNDEF = 0,
 310   SHN_LORESERVE = 0xff00,
 311   SHN_LOPROC = 0xff00,
 312   SHN_HIPROC = 0xff1f,
 313   SHN_LOOS = 0xff20,
 314   SHN_HIOS = 0xff3f,
 315   SHN_ABS = 0xfff1,
 316   SHN_COMMON = 0xfff2,
 317   SHN_XINDEX = 0xffff,
 318   SHN_HIRESERVE = 0xffff
 319 };
 320
 321 // The valid values found in the Shdr sh_type field.
 322
 323 enum SHT
 324 {
 325   SHT_NULL = 0,
 326   SHT_PROGBITS = 1,
 327   SHT_SYMTAB = 2,
 328   SHT_STRTAB = 3,
 329   SHT_RELA = 4,
 330   SHT_HASH = 5,
 331   SHT_DYNAMIC = 6,
 332   SHT_NOTE = 7,
 333   SHT_NOBITS = 8,
 334   SHT_REL = 9,
 335   SHT_SHLIB = 10,
 336   SHT_DYNSYM = 11,
 337   SHT_INIT_ARRAY = 14,
 338   SHT_FINI_ARRAY = 15,
 339   SHT_PREINIT_ARRAY = 16,
 340   SHT_GROUP = 17,
 341   SHT_SYMTAB_SHNDX = 18,
 342   SHT_LOOS = 0x60000000,
 343   SHT_HIOS = 0x6fffffff,
 344   SHT_LOPROC = 0x70000000,
 345   SHT_HIPROC = 0x7fffffff,
 346   SHT_LOUSER = 0x80000000,
 347   SHT_HIUSER = 0xffffffff,
 348   // The remaining values are not in the standard.
 349   // Object attributes.
 350   SHT_GNU_ATTRIBUTES = 0x6ffffff5,
 351   // GNU style dynamic hash table.
 352   SHT_GNU_HASH = 0x6ffffff6,
 353   // List of prelink dependencies.
 354   SHT_GNU_LIBLIST = 0x6ffffff7,
 355   // Versions defined by file.
 356   SHT_SUNW_verdef = 0x6ffffffd,
 357   SHT_GNU_verdef = 0x6ffffffd,
 358   // Versions needed by file.
 359   SHT_SUNW_verneed = 0x6ffffffe,
 360   SHT_GNU_verneed = 0x6ffffffe,
 361   // Symbol versions,
 362   SHT_SUNW_versym = 0x6fffffff,
 363   SHT_GNU_versym = 0x6fffffff,
 364 };
 365
 366 // The valid bit flags found in the Shdr sh_flags field.
 367
 368 enum SHF
 369 {
 370   SHF_WRITE = 0x1,
 371   SHF_ALLOC = 0x2,
 372   SHF_EXECINSTR = 0x4,
 373   SHF_MERGE = 0x10,
 374   SHF_STRINGS = 0x20,
 375   SHF_INFO_LINK = 0x40,
 376   SHF_LINK_ORDER = 0x80,
 377   SHF_OS_NONCONFORMING = 0x100,
 378   SHF_GROUP = 0x200,
 379   SHF_TLS = 0x400,
 380   SHF_MASKOS = 0x0ff00000,
 381   SHF_MASKPROC = 0xf0000000
 382 };
 383
 384 // Bit flags which appear in the first 32-bit word of the section data
 385 // of a SHT_GROUP section.
 386
 387 enum
 388 {
 389   GRP_COMDAT = 0x1,
 390   GRP_MASKOS = 0x0ff00000,
 391   GRP_MASKPROC = 0xf0000000
 392 };
 393
 394 // The valid values found in the Phdr p_type field.
 395
 396 enum PT
 397 {
 398   PT_NULL = 0,
 399   PT_LOAD = 1,
 400   PT_DYNAMIC = 2,
 401   PT_INTERP = 3,
 402   PT_NOTE = 4,
 403   PT_SHLIB = 5,
 404   PT_PHDR = 6,
 405   PT_TLS = 7,
 406   PT_LOOS = 0x60000000,
 407   PT_HIOS = 0x6fffffff,
 408   PT_LOPROC = 0x70000000,
 409   PT_HIPROC = 0x7fffffff,
 410   // The remaining values are not in the standard.
 411   // Frame unwind information.
 412   PT_GNU_EH_FRAME = 0x6474e550,
 413   PT_SUNW_EH_FRAME = 0x6474e550,
 414   // Stack flags.
 415   PT_GNU_STACK = 0x6474e551,
 416   // Read only after relocation.
 417   PT_GNU_RELRO = 0x6474e552
 418 };
 419
 420 // The valid bit flags found in the Phdr p_flags field.
 421
 422 enum PF
 423 {
 424   PF_X = 0x1,
 425   PF_W = 0x2,
 426   PF_R = 0x4,
 427   PF_MASKOS = 0x0ff00000,
 428   PF_MASKPROC = 0xf0000000
 429 };
 430
 431 // Symbol binding from Sym st_info field.
 432
 433 enum STB
 434 {
 435   STB_LOCAL = 0,
 436   STB_GLOBAL = 1,
 437   STB_WEAK = 2,
 438   STB_LOOS = 10,
 439   STB_HIOS = 12,
 440   STB_LOPROC = 13,
 441   STB_HIPROC = 15
 442 };
 443
 444 // Symbol types from Sym st_info field.
 445
 446 enum STT
 447 {
 448   STT_NOTYPE = 0,
 449   STT_OBJECT = 1,
 450   STT_FUNC = 2,
 451   STT_SECTION = 3,
 452   STT_FILE = 4,
 453   STT_COMMON = 5,
 454   STT_TLS = 6,
 455   STT_LOOS = 10,
 456   STT_HIOS = 12,
 457   STT_LOPROC = 13,
 458   STT_HIPROC = 15
 459 };
 460
 461 inline STB
 462 elf_st_bind(unsigned char info)
 463 {
 464   return static_cast<STB>(info >> 4);
 465 }
 466
 467 inline STT
 468 elf_st_type(unsigned char info)
 469 {
 470   return static_cast<STT>(info & 0xf);
 471 }
 472
 473 inline unsigned char
 474 elf_st_info(STB bind, STT type)
 475 {
 476   return ((static_cast<unsigned char>(bind) << 4)
 477           + (static_cast<unsigned char>(type) & 0xf));
 478 }
 479
 480 // Symbol visibility from Sym st_other field.
 481
 482 enum STV
 483 {
 484   STV_DEFAULT = 0,
 485   STV_INTERNAL = 1,
 486   STV_HIDDEN = 2,
 487   STV_PROTECTED = 3
 488 };
 489
 490 inline STV
 491 elf_st_visibility(unsigned char other)
 492 {
 493   return static_cast<STV>(other & 0x3);
 494 }
 495
 496 inline unsigned char
 497 elf_st_nonvis(unsigned char other)
 498 {
 499   return static_cast<STV>(other >> 2);
 500 }
 501
 502 inline unsigned char
 503 elf_st_other(STV vis, unsigned char nonvis)
 504 {
 505   return ((nonvis << 2)
 506           + (static_cast<unsigned char>(vis) & 3));
 507 }
 508
 509 // Reloc information from Rel/Rela r_info field.
 510
 511 template<int size>
 512 unsigned int
 513 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 514
 515 template<>
 516 inline unsigned int
 517 elf_r_sym<32>(Elf_Word v)
 518 {
 519   return v >> 8;
 520 }
 521
 522 template<>
 523 inline unsigned int
 524 elf_r_sym<64>(Elf_Xword v)
 525 {
 526   return v >> 32;
 527 }
 528
 529 template<int size>
 530 unsigned int
 531 elf_r_type(typename Elf_types<size>::Elf_WXword);
 532
 533 template<>
 534 inline unsigned int
 535 elf_r_type<32>(Elf_Word v)
 536 {
 537   return v & 0xff;
 538 }
 539
 540 template<>
 541 inline unsigned int
 542 elf_r_type<64>(Elf_Xword v)
 543 {
 544   return v & 0xffffffff;
 545 }
 546
 547 template<int size>
 548 typename Elf_types<size>::Elf_WXword
 549 elf_r_info(unsigned int s, unsigned int t);
 550
 551 template<>
 552 inline Elf_Word
 553 elf_r_info<32>(unsigned int s, unsigned int t)
 554 {
 555   return (s << 8) + (t & 0xff);
 556 }
 557
 558 template<>
 559 inline Elf_Xword
 560 elf_r_info<64>(unsigned int s, unsigned int t)
 561 {
 562   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 563 }
 564
 565 // Dynamic tags found in the PT_DYNAMIC segment.
 566
 567 enum DT
 568 {
 569   DT_NULL = 0,
 570   DT_NEEDED = 1,
 571   DT_PLTRELSZ = 2,
 572   DT_PLTGOT = 3,
 573   DT_HASH = 4,
 574   DT_STRTAB = 5,
 575   DT_SYMTAB = 6,
 576   DT_RELA = 7,
 577   DT_RELASZ = 8,
 578   DT_RELAENT = 9,
 579   DT_STRSZ = 10,
 580   DT_SYMENT = 11,
 581   DT_INIT = 12,
 582   DT_FINI = 13,
 583   DT_SONAME = 14,
 584   DT_RPATH = 15,
 585   DT_SYMBOLIC = 16,
 586   DT_REL = 17,
 587   DT_RELSZ = 18,
 588   DT_RELENT = 19,
 589   DT_PLTREL = 20,
 590   DT_DEBUG = 21,
 591   DT_TEXTREL = 22,
 592   DT_JMPREL = 23,
 593   DT_BIND_NOW = 24,
 594   DT_INIT_ARRAY = 25,
 595   DT_FINI_ARRAY = 26,
 596   DT_INIT_ARRAYSZ = 27,
 597   DT_FINI_ARRAYSZ = 28,
 598   DT_RUNPATH = 29,
 599   DT_FLAGS = 30,
 600   DT_ENCODING = 32,
 601   DT_PREINIT_ARRAY = 33,
 602   DT_PREINIT_ARRAYSZ = 33,
 603   DT_LOOS = 0x6000000d,
 604   DT_HIOS = 0x6ffff000,
 605   DT_LOPROC = 0x70000000,
 606   DT_HIPROC = 0x7fffffff,
 607
 608   // The remaining values are extensions used by GNU or Solaris.
 609   DT_VALRNGLO = 0x6ffffd00,
 610   DT_GNU_PRELINKED = 0x6ffffdf5,
 611   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 612   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 613   DT_CHECKSUM = 0x6ffffdf8,
 614   DT_PLTPADSZ = 0x6ffffdf9,
 615   DT_MOVEENT = 0x6ffffdfa,
 616   DT_MOVESZ = 0x6ffffdfb,
 617   DT_FEATURE = 0x6ffffdfc,
 618   DT_POSFLAG_1 = 0x6ffffdfd,
 619   DT_SYMINSZ = 0x6ffffdfe,
 620   DT_SYMINENT = 0x6ffffdff,
 621   DT_VALRNGHI = 0x6ffffdff,
 622
 623   DT_ADDRRNGLO = 0x6ffffe00,
 624   DT_GNU_HASH = 0x6ffffef5,
 625   DT_TLSDESC_PLT = 0x6ffffef6,
 626   DT_TLSDESC_GOT = 0x6ffffef7,
 627   DT_GNU_CONFLICT = 0x6ffffef8,
 628   DT_GNU_LIBLIST = 0x6ffffef9,
 629   DT_CONFIG = 0x6ffffefa,
 630   DT_DEPAUDIT = 0x6ffffefb,
 631   DT_AUDIT = 0x6ffffefc,
 632   DT_PLTPAD = 0x6ffffefd,
 633   DT_MOVETAB = 0x6ffffefe,
 634   DT_SYMINFO = 0x6ffffeff,
 635   DT_ADDRRNGHI = 0x6ffffeff,
 636
 637   DT_RELACOUNT = 0x6ffffff9,
 638   DT_RELCOUNT = 0x6ffffffa,
 639   DT_FLAGS_1 = 0x6ffffffb,
 640   DT_VERDEF = 0x6ffffffc,
 641   DT_VERDEFNUM = 0x6ffffffd,
 642   DT_VERNEED = 0x6ffffffe,
 643   DT_VERNEEDNUM = 0x6fffffff,
 644
 645   DT_VERSYM = 0x6ffffff0,
 646
 647   DT_AUXILIARY = 0x7ffffffd,
 648   DT_USED = 0x7ffffffe,
 649   DT_FILTER = 0x7fffffff
 650 };
 651
 652 // Flags found in the DT_FLAGS dynamic element.
 653
 654 enum DF
 655 {
 656   DF_ORIGIN = 0x1,
 657   DF_SYMBOLIC = 0x2,
 658   DF_TEXTREL = 0x4,
 659   DF_BIND_NOW = 0x8,
 660   DF_STATIC_TLS = 0x10
 661 };
 662
 663 // Version numbers which appear in the vd_version field of a Verdef
 664 // structure.
 665
 666 const int VER_DEF_NONE = 0;
 667 const int VER_DEF_CURRENT = 1;
 668
 669 // Version numbers which appear in the vn_version field of a Verneed
 670 // structure.
 671
 672 const int VER_NEED_NONE = 0;
 673 const int VER_NEED_CURRENT = 1;
 674
 675 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 676 // Vernaux.
 677
 678 const int VER_FLG_BASE = 0x1;
 679 const int VER_FLG_WEAK = 0x2;
 680
 681 // Special constants found in the SHT_GNU_versym entries.
 682
 683 const int VER_NDX_LOCAL = 0;
 684 const int VER_NDX_GLOBAL = 1;
 685
 686 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 687 // the symbol is hidden and can only be seen when referenced using an
 688 // explicit version number.  This is a GNU extension.
 689
 690 const int VERSYM_HIDDEN = 0x8000;
 691
 692 // This is the mask for the rest of the data in a word read from a
 693 // SHT_GNU_versym section.
 694
 695 const int VERSYM_VERSION = 0x7fff;
 696
 697 // Note descriptor type codes for notes in a non-core file with an
 698 // empty name.
 699
 700 enum
 701 {
 702   // A version string.
 703   NT_VERSION = 1,
 704   // An architecture string.
 705   NT_ARCH = 2
 706 };
 707
 708 // Note descriptor type codes for notes in a non-core file with the
 709 // name "GNU".
 710
 711 enum
 712 {
 713   // The minimum ABI level.  This is used by the dynamic linker to
 714   // describe the minimal kernel version on which a shared library may
 715   // be used.  Th value should be four words.  Word 0 is an OS
 716   // descriptor (see below).  Word 1 is the major version of the ABI.
 717   // Word 2 is the minor version.  Word 3 is the subminor version.
 718   NT_GNU_ABI_TAG = 1,
 719   // Hardware capabilities information.  Word 0 is the number of
 720   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 721   // the descriptor is a series of entries, where each entry is a
 722   // single byte followed by a nul terminated string.  The byte gives
 723   // the bit number to test if enabled in the bitmask.
 724   NT_GNU_HWCAP = 2,
 725   // The build ID as set by the linker's --build-id option.  The
 726   // format of the descriptor depends on the build ID style.
 727   NT_GNU_BUILD_ID = 3,
 728   // The version of gold used to link.  Th descriptor is just a
 729   // string.
 730   NT_GNU_GOLD_VERSION = 4
 731 };
 732
 733 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 734
 735 enum
 736 {
 737   ELF_NOTE_OS_LINUX = 0,
 738   ELF_NOTE_OS_GNU = 1,
 739   ELF_NOTE_OS_SOLARIS2 = 2,
 740   ELF_NOTE_OS_FREEBSD = 3,
 741   ELF_NOTE_OS_NETBSD = 4,
 742   ELF_NOTE_OS_SYLLABLE = 5
 743 };
 744
 745 } // End namespace elfcpp.
 746
 747 // Include internal details after defining the types.
 748 #include "elfcpp_internal.h"
 749
 750 namespace elfcpp
 751 {
 752
 753 // The offset of the ELF file header in the ELF file.
 754
 755 const int file_header_offset = 0;
 756
 757 // ELF structure sizes.
 758
 759 template<int size>
 760 struct Elf_sizes
 761 {
 762   // Size of ELF file header.
 763   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
 764   // Size of ELF segment header.
 765   static const int phdr_size = sizeof(internal::Phdr_data<size>);
 766   // Size of ELF section header.
 767   static const int shdr_size = sizeof(internal::Shdr_data<size>);
 768   // Size of ELF symbol table entry.
 769   static const int sym_size = sizeof(internal::Sym_data<size>);
 770   // Sizes of ELF reloc entries.
 771   static const int rel_size = sizeof(internal::Rel_data<size>);
 772   static const int rela_size = sizeof(internal::Rela_data<size>);
 773   // Size of ELF dynamic entry.
 774   static const int dyn_size = sizeof(internal::Dyn_data<size>);
 775   // Size of ELF version structures.
 776   static const int verdef_size = sizeof(internal::Verdef_data);
 777   static const int verdaux_size = sizeof(internal::Verdaux_data);
 778   static const int verneed_size = sizeof(internal::Verneed_data);
 779   static const int vernaux_size = sizeof(internal::Vernaux_data);
 780 };
 781
 782 // Accessor class for the ELF file header.
 783
 784 template<int size, bool big_endian>
 785 class Ehdr
 786 {
 787  public:
 788   Ehdr(const unsigned char* p)
 789     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
 790   { }
 791
 792   template<typename File>
 793   Ehdr(File* file, typename File::Location loc)
 794     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
 795            file->view(loc.file_offset, loc.data_size).data()))
 796   { }
 797
 798   const unsigned char*
 799   get_e_ident() const
 800   { return this->p_->e_ident; }
 801
 802   Elf_Half
 803   get_e_type() const
 804   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
 805
 806   Elf_Half
 807   get_e_machine() const
 808   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
 809
 810   Elf_Word
 811   get_e_version() const
 812   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
 813
 814   typename Elf_types<size>::Elf_Addr
 815   get_e_entry() const
 816   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
 817
 818   typename Elf_types<size>::Elf_Off
 819   get_e_phoff() const
 820   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
 821
 822   typename Elf_types<size>::Elf_Off
 823   get_e_shoff() const
 824   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
 825
 826   Elf_Word
 827   get_e_flags() const
 828   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
 829
 830   Elf_Half
 831   get_e_ehsize() const
 832   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
 833
 834   Elf_Half
 835   get_e_phentsize() const
 836   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
 837
 838   Elf_Half
 839   get_e_phnum() const
 840   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
 841
 842   Elf_Half
 843   get_e_shentsize() const
 844   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
 845
 846   Elf_Half
 847   get_e_shnum() const
 848   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
 849
 850   Elf_Half
 851   get_e_shstrndx() const
 852   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
 853
 854  private:
 855   const internal::Ehdr_data<size>* p_;
 856 };
 857
 858 // Write class for the ELF file header.
 859
 860 template<int size, bool big_endian>
 861 class Ehdr_write
 862 {
 863  public:
 864   Ehdr_write(unsigned char* p)
 865     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
 866   { }
 867
 868   void
 869   put_e_ident(const unsigned char v[EI_NIDENT]) const
 870   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
 871
 872   void
 873   put_e_type(Elf_Half v)
 874   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
 875
 876   void
 877   put_e_machine(Elf_Half v)
 878   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
 879
 880   void
 881   put_e_version(Elf_Word v)
 882   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
 883
 884   void
 885   put_e_entry(typename Elf_types<size>::Elf_Addr v)
 886   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
 887
 888   void
 889   put_e_phoff(typename Elf_types<size>::Elf_Off v)
 890   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
 891
 892   void
 893   put_e_shoff(typename Elf_types<size>::Elf_Off v)
 894   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
 895
 896   void
 897   put_e_flags(Elf_Word v)
 898   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
 899
 900   void
 901   put_e_ehsize(Elf_Half v)
 902   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
 903
 904   void
 905   put_e_phentsize(Elf_Half v)
 906   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
 907
 908   void
 909   put_e_phnum(Elf_Half v)
 910   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
 911
 912   void
 913   put_e_shentsize(Elf_Half v)
 914   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
 915
 916   void
 917   put_e_shnum(Elf_Half v)
 918   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
 919
 920   void
 921   put_e_shstrndx(Elf_Half v)
 922   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
 923
 924  private:
 925   internal::Ehdr_data<size>* p_;
 926 };
 927
 928 // Accessor class for an ELF section header.
 929
 930 template<int size, bool big_endian>
 931 class Shdr
 932 {
 933  public:
 934   Shdr(const unsigned char* p)
 935     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
 936   { }
 937
 938   template<typename File>
 939   Shdr(File* file, typename File::Location loc)
 940     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
 941            file->view(loc.file_offset, loc.data_size).data()))
 942   { }
 943
 944   Elf_Word
 945   get_sh_name() const
 946   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
 947
 948   Elf_Word
 949   get_sh_type() const
 950   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
 951
 952   typename Elf_types<size>::Elf_WXword
 953   get_sh_flags() const
 954   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
 955
 956   typename Elf_types<size>::Elf_Addr
 957   get_sh_addr() const
 958   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
 959
 960   typename Elf_types<size>::Elf_Off
 961   get_sh_offset() const
 962   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
 963
 964   typename Elf_types<size>::Elf_WXword
 965   get_sh_size() const
 966   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
 967
 968   Elf_Word
 969   get_sh_link() const
 970   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
 971
 972   Elf_Word
 973   get_sh_info() const
 974   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
 975
 976   typename Elf_types<size>::Elf_WXword
 977   get_sh_addralign() const
 978   { return
 979       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
 980
 981   typename Elf_types<size>::Elf_WXword
 982   get_sh_entsize() const
 983   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
 984
 985  private:
 986   const internal::Shdr_data<size>* p_;
 987 };
 988
 989 // Write class for an ELF section header.
 990
 991 template<int size, bool big_endian>
 992 class Shdr_write
 993 {
 994  public:
 995   Shdr_write(unsigned char* p)
 996     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
 997   { }
 998
 999   void
1000   put_sh_name(Elf_Word v)
1001   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1002
1003   void
1004   put_sh_type(Elf_Word v)
1005   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1006
1007   void
1008   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1009   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1010
1011   void
1012   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1013   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1014
1015   void
1016   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1017   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1018
1019   void
1020   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1021   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1022
1023   void
1024   put_sh_link(Elf_Word v)
1025   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1026
1027   void
1028   put_sh_info(Elf_Word v)
1029   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1030
1031   void
1032   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1033   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1034
1035   void
1036   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1037   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1038
1039  private:
1040   internal::Shdr_data<size>* p_;
1041 };
1042
1043 // Accessor class for an ELF segment header.
1044
1045 template<int size, bool big_endian>
1046 class Phdr
1047 {
1048  public:
1049   Phdr(const unsigned char* p)
1050     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1051   { }
1052
1053   template<typename File>
1054   Phdr(File* file, typename File::Location loc)
1055     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1056            file->view(loc.file_offset, loc.data_size).data()))
1057   { }
1058
1059   Elf_Word
1060   get_p_type() const
1061   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1062
1063   typename Elf_types<size>::Elf_Off
1064   get_p_offset() const
1065   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1066
1067   typename Elf_types<size>::Elf_Addr
1068   get_p_vaddr() const
1069   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1070
1071   typename Elf_types<size>::Elf_Addr
1072   get_p_paddr() const
1073   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1074
1075   typename Elf_types<size>::Elf_WXword
1076   get_p_filesz() const
1077   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1078
1079   typename Elf_types<size>::Elf_WXword
1080   get_p_memsz() const
1081   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1082
1083   Elf_Word
1084   get_p_flags() const
1085   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1086
1087   typename Elf_types<size>::Elf_WXword
1088   get_p_align() const
1089   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1090
1091  private:
1092   const internal::Phdr_data<size>* p_;
1093 };
1094
1095 // Write class for an ELF segment header.
1096
1097 template<int size, bool big_endian>
1098 class Phdr_write
1099 {
1100  public:
1101   Phdr_write(unsigned char* p)
1102     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1103   { }
1104
1105   void
1106   put_p_type(Elf_Word v)
1107   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1108
1109   void
1110   put_p_offset(typename Elf_types<size>::Elf_Off v)
1111   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1112
1113   void
1114   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1115   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1116
1117   void
1118   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1119   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1120
1121   void
1122   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1123   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1124
1125   void
1126   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1127   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1128
1129   void
1130   put_p_flags(Elf_Word v)
1131   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1132
1133   void
1134   put_p_align(typename Elf_types<size>::Elf_WXword v)
1135   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1136
1137  private:
1138   internal::Phdr_data<size>* p_;
1139 };
1140
1141 // Accessor class for an ELF symbol table entry.
1142
1143 template<int size, bool big_endian>
1144 class Sym
1145 {
1146  public:
1147   Sym(const unsigned char* p)
1148     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1149   { }
1150
1151   template<typename File>
1152   Sym(File* file, typename File::Location loc)
1153     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1154            file->view(loc.file_offset, loc.data_size).data()))
1155   { }
1156
1157   Elf_Word
1158   get_st_name() const
1159   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1160
1161   typename Elf_types<size>::Elf_Addr
1162   get_st_value() const
1163   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1164
1165   typename Elf_types<size>::Elf_WXword
1166   get_st_size() const
1167   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1168
1169   unsigned char
1170   get_st_info() const
1171   { return this->p_->st_info; }
1172
1173   STB
1174   get_st_bind() const
1175   { return elf_st_bind(this->get_st_info()); }
1176
1177   STT
1178   get_st_type() const
1179   { return elf_st_type(this->get_st_info()); }
1180
1181   unsigned char
1182   get_st_other() const
1183   { return this->p_->st_other; }
1184
1185   STV
1186   get_st_visibility() const
1187   { return elf_st_visibility(this->get_st_other()); }
1188
1189   unsigned char
1190   get_st_nonvis() const
1191   { return elf_st_nonvis(this->get_st_other()); }
1192
1193   Elf_Half
1194   get_st_shndx() const
1195   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1196
1197  private:
1198   const internal::Sym_data<size>* p_;
1199 };
1200
1201 // Writer class for an ELF symbol table entry.
1202
1203 template<int size, bool big_endian>
1204 class Sym_write
1205 {
1206  public:
1207   Sym_write(unsigned char* p)
1208     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1209   { }
1210
1211   void
1212   put_st_name(Elf_Word v)
1213   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1214
1215   void
1216   put_st_value(typename Elf_types<size>::Elf_Addr v)
1217   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1218
1219   void
1220   put_st_size(typename Elf_types<size>::Elf_WXword v)
1221   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1222
1223   void
1224   put_st_info(unsigned char v)
1225   { this->p_->st_info = v; }
1226
1227   void
1228   put_st_info(STB bind, STT type)
1229   { this->p_->st_info = elf_st_info(bind, type); }
1230
1231   void
1232   put_st_other(unsigned char v)
1233   { this->p_->st_other = v; }
1234
1235   void
1236   put_st_other(STV vis, unsigned char nonvis)
1237   { this->p_->st_other = elf_st_other(vis, nonvis); }
1238
1239   void
1240   put_st_shndx(Elf_Half v)
1241   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1242
1243   Sym<size, big_endian>
1244   sym()
1245   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1246
1247  private:
1248   internal::Sym_data<size>* p_;
1249 };
1250
1251 // Accessor classes for an ELF REL relocation entry.
1252
1253 template<int size, bool big_endian>
1254 class Rel
1255 {
1256  public:
1257   Rel(const unsigned char* p)
1258     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1259   { }
1260
1261   template<typename File>
1262   Rel(File* file, typename File::Location loc)
1263     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1264            file->view(loc.file_offset, loc.data_size).data()))
1265   { }
1266
1267   typename Elf_types<size>::Elf_Addr
1268   get_r_offset() const
1269   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1270
1271   typename Elf_types<size>::Elf_WXword
1272   get_r_info() const
1273   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1274
1275  private:
1276   const internal::Rel_data<size>* p_;
1277 };
1278
1279 // Writer class for an ELF Rel relocation.
1280
1281 template<int size, bool big_endian>
1282 class Rel_write
1283 {
1284  public:
1285   Rel_write(unsigned char* p)
1286     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1287   { }
1288
1289   void
1290   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1291   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1292
1293   void
1294   put_r_info(typename Elf_types<size>::Elf_WXword v)
1295   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1296
1297  private:
1298   internal::Rel_data<size>* p_;
1299 };
1300
1301 // Accessor class for an ELF Rela relocation.
1302
1303 template<int size, bool big_endian>
1304 class Rela
1305 {
1306  public:
1307   Rela(const unsigned char* p)
1308     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1309   { }
1310
1311   template<typename File>
1312   Rela(File* file, typename File::Location loc)
1313     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1314            file->view(loc.file_offset, loc.data_size).data()))
1315   { }
1316
1317   typename Elf_types<size>::Elf_Addr
1318   get_r_offset() const
1319   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1320
1321   typename Elf_types<size>::Elf_WXword
1322   get_r_info() const
1323   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1324
1325   typename Elf_types<size>::Elf_Swxword
1326   get_r_addend() const
1327   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1328
1329  private:
1330   const internal::Rela_data<size>* p_;
1331 };
1332
1333 // Writer class for an ELF Rela relocation.
1334
1335 template<int size, bool big_endian>
1336 class Rela_write
1337 {
1338  public:
1339   Rela_write(unsigned char* p)
1340     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1341   { }
1342
1343   void
1344   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1345   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1346
1347   void
1348   put_r_info(typename Elf_types<size>::Elf_WXword v)
1349   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1350
1351   void
1352   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1353   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1354
1355  private:
1356   internal::Rela_data<size>* p_;
1357 };
1358
1359 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1360 // PT_DYNAMIC segment.
1361
1362 template<int size, bool big_endian>
1363 class Dyn
1364 {
1365  public:
1366   Dyn(const unsigned char* p)
1367     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1368   { }
1369
1370   template<typename File>
1371   Dyn(File* file, typename File::Location loc)
1372     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1373            file->view(loc.file_offset, loc.data_size).data()))
1374   { }
1375
1376   typename Elf_types<size>::Elf_Swxword
1377   get_d_tag() const
1378   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1379
1380   typename Elf_types<size>::Elf_WXword
1381   get_d_val() const
1382   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1383
1384   typename Elf_types<size>::Elf_Addr
1385   get_d_ptr() const
1386   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1387
1388  private:
1389   const internal::Dyn_data<size>* p_;
1390 };
1391
1392 // Write class for an entry in the SHT_DYNAMIC section.
1393
1394 template<int size, bool big_endian>
1395 class Dyn_write
1396 {
1397  public:
1398   Dyn_write(unsigned char* p)
1399     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1400   { }
1401
1402   void
1403   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1404   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1405
1406   void
1407   put_d_val(typename Elf_types<size>::Elf_WXword v)
1408   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1409
1410   void
1411   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1412   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1413
1414  private:
1415   internal::Dyn_data<size>* p_;
1416 };
1417
1418 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1419
1420 template<int size, bool big_endian>
1421 class Verdef
1422 {
1423  public:
1424   Verdef(const unsigned char* p)
1425     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1426   { }
1427
1428   template<typename File>
1429   Verdef(File* file, typename File::Location loc)
1430     : p_(reinterpret_cast<const internal::Verdef_data*>(
1431            file->view(loc.file_offset, loc.data_size).data()))
1432   { }
1433
1434   Elf_Half
1435   get_vd_version() const
1436   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1437
1438   Elf_Half
1439   get_vd_flags() const
1440   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1441
1442   Elf_Half
1443   get_vd_ndx() const
1444   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1445
1446   Elf_Half
1447   get_vd_cnt() const
1448   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1449
1450   Elf_Word
1451   get_vd_hash() const
1452   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1453
1454   Elf_Word
1455   get_vd_aux() const
1456   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1457
1458   Elf_Word
1459   get_vd_next() const
1460   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1461
1462  private:
1463   const internal::Verdef_data* p_;
1464 };
1465
1466 template<int size, bool big_endian>
1467 class Verdef_write
1468 {
1469  public:
1470   Verdef_write(unsigned char* p)
1471     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1472   { }
1473
1474   void
1475   set_vd_version(Elf_Half v)
1476   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1477
1478   void
1479   set_vd_flags(Elf_Half v)
1480   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1481
1482   void
1483   set_vd_ndx(Elf_Half v)
1484   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1485
1486   void
1487   set_vd_cnt(Elf_Half v)
1488   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1489
1490   void
1491   set_vd_hash(Elf_Word v)
1492   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1493
1494   void
1495   set_vd_aux(Elf_Word v)
1496   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1497
1498   void
1499   set_vd_next(Elf_Word v)
1500   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1501
1502  private:
1503   internal::Verdef_data* p_;
1504 };
1505
1506 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1507 // section.
1508
1509 template<int size, bool big_endian>
1510 class Verdaux
1511 {
1512  public:
1513   Verdaux(const unsigned char* p)
1514     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1515   { }
1516
1517   template<typename File>
1518   Verdaux(File* file, typename File::Location loc)
1519     : p_(reinterpret_cast<const internal::Verdaux_data*>(
1520            file->view(loc.file_offset, loc.data_size).data()))
1521   { }
1522
1523   Elf_Word
1524   get_vda_name() const
1525   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
1526
1527   Elf_Word
1528   get_vda_next() const
1529   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
1530
1531  private:
1532   const internal::Verdaux_data* p_;
1533 };
1534
1535 template<int size, bool big_endian>
1536 class Verdaux_write
1537 {
1538  public:
1539   Verdaux_write(unsigned char* p)
1540     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
1541   { }
1542
1543   void
1544   set_vda_name(Elf_Word v)
1545   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
1546
1547   void
1548   set_vda_next(Elf_Word v)
1549   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
1550
1551  private:
1552   internal::Verdaux_data* p_;
1553 };
1554
1555 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
1556
1557 template<int size, bool big_endian>
1558 class Verneed
1559 {
1560  public:
1561   Verneed(const unsigned char* p)
1562     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
1563   { }
1564
1565   template<typename File>
1566   Verneed(File* file, typename File::Location loc)
1567     : p_(reinterpret_cast<const internal::Verneed_data*>(
1568            file->view(loc.file_offset, loc.data_size).data()))
1569   { }
1570
1571   Elf_Half
1572   get_vn_version() const
1573   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
1574
1575   Elf_Half
1576   get_vn_cnt() const
1577   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
1578
1579   Elf_Word
1580   get_vn_file() const
1581   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
1582
1583   Elf_Word
1584   get_vn_aux() const
1585   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
1586
1587   Elf_Word
1588   get_vn_next() const
1589   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
1590
1591  private:
1592   const internal::Verneed_data* p_;
1593 };
1594
1595 template<int size, bool big_endian>
1596 class Verneed_write
1597 {
1598  public:
1599   Verneed_write(unsigned char* p)
1600     : p_(reinterpret_cast<internal::Verneed_data*>(p))
1601   { }
1602
1603   void
1604   set_vn_version(Elf_Half v)
1605   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
1606
1607   void
1608   set_vn_cnt(Elf_Half v)
1609   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
1610
1611   void
1612   set_vn_file(Elf_Word v)
1613   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
1614
1615   void
1616   set_vn_aux(Elf_Word v)
1617   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
1618
1619   void
1620   set_vn_next(Elf_Word v)
1621   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
1622
1623  private:
1624   internal::Verneed_data* p_;
1625 };
1626
1627 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
1628 // section.
1629
1630 template<int size, bool big_endian>
1631 class Vernaux
1632 {
1633  public:
1634   Vernaux(const unsigned char* p)
1635     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
1636   { }
1637
1638   template<typename File>
1639   Vernaux(File* file, typename File::Location loc)
1640     : p_(reinterpret_cast<const internal::Vernaux_data*>(
1641            file->view(loc.file_offset, loc.data_size).data()))
1642   { }
1643
1644   Elf_Word
1645   get_vna_hash() const
1646   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
1647
1648   Elf_Half
1649   get_vna_flags() const
1650   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
1651
1652   Elf_Half
1653   get_vna_other() const
1654   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
1655
1656   Elf_Word
1657   get_vna_name() const
1658   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
1659
1660   Elf_Word
1661   get_vna_next() const
1662   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
1663
1664  private:
1665   const internal::Vernaux_data* p_;
1666 };
1667
1668 template<int size, bool big_endian>
1669 class Vernaux_write
1670 {
1671  public:
1672   Vernaux_write(unsigned char* p)
1673     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
1674   { }
1675
1676   void
1677   set_vna_hash(Elf_Word v)
1678   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
1679
1680   void
1681   set_vna_flags(Elf_Half v)
1682   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
1683
1684   void
1685   set_vna_other(Elf_Half v)
1686   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
1687
1688   void
1689   set_vna_name(Elf_Word v)
1690   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
1691
1692   void
1693   set_vna_next(Elf_Word v)
1694   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
1695
1696  private:
1697   internal::Vernaux_data* p_;
1698 };
1699
1700 } // End namespace elfcpp.
1701
1702 #endif // !defined(ELFPCP_H)