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   // List of prelink dependencies.
 350   SHT_GNU_LIBLIST = 0x6ffffff7,
 351   // Versions defined by file.
 352   SHT_SUNW_verdef = 0x6ffffffd,
 353   SHT_GNU_verdef = 0x6ffffffd,
 354   // Versions needed by file.
 355   SHT_SUNW_verneed = 0x6ffffffe,
 356   SHT_GNU_verneed = 0x6ffffffe,
 357   // Symbol versions,
 358   SHT_SUNW_versym = 0x6fffffff,
 359   SHT_GNU_versym = 0x6fffffff,
 360 };
 361
 362 // The valid bit flags found in the Shdr sh_flags field.
 363
 364 enum SHF
 365 {
 366   SHF_WRITE = 0x1,
 367   SHF_ALLOC = 0x2,
 368   SHF_EXECINSTR = 0x4,
 369   SHF_MERGE = 0x10,
 370   SHF_STRINGS = 0x20,
 371   SHF_INFO_LINK = 0x40,
 372   SHF_LINK_ORDER = 0x80,
 373   SHF_OS_NONCONFORMING = 0x100,
 374   SHF_GROUP = 0x200,
 375   SHF_TLS = 0x400,
 376   SHF_MASKOS = 0x0ff00000,
 377   SHF_MASKPROC = 0xf0000000
 378 };
 379
 380 // Bit flags which appear in the first 32-bit word of the section data
 381 // of a SHT_GROUP section.
 382
 383 enum
 384 {
 385   GRP_COMDAT = 0x1,
 386   GRP_MASKOS = 0x0ff00000,
 387   GRP_MASKPROC = 0xf0000000
 388 };
 389
 390 // The valid values found in the Phdr p_type field.
 391
 392 enum PT
 393 {
 394   PT_NULL = 0,
 395   PT_LOAD = 1,
 396   PT_DYNAMIC = 2,
 397   PT_INTERP = 3,
 398   PT_NOTE = 4,
 399   PT_SHLIB = 5,
 400   PT_PHDR = 6,
 401   PT_TLS = 7,
 402   PT_LOOS = 0x60000000,
 403   PT_HIOS = 0x6fffffff,
 404   PT_LOPROC = 0x70000000,
 405   PT_HIPROC = 0x7fffffff,
 406   // The remaining values are not in the standard.
 407   // Frame unwind information.
 408   PT_GNU_EH_FRAME = 0x6474e550,
 409   PT_SUNW_EH_FRAME = 0x6474e550,
 410   // Stack flags.
 411   PT_GNU_STACK = 0x6474e551,
 412   // Read only after relocation.
 413   PT_GNU_RELRO = 0x6474e552
 414 };
 415
 416 // The valid bit flags found in the Phdr p_flags field.
 417
 418 enum PF
 419 {
 420   PF_X = 0x1,
 421   PF_W = 0x2,
 422   PF_R = 0x4,
 423   PF_MASKOS = 0x0ff00000,
 424   PF_MASKPROC = 0xf0000000
 425 };
 426
 427 // Symbol binding from Sym st_info field.
 428
 429 enum STB
 430 {
 431   STB_LOCAL = 0,
 432   STB_GLOBAL = 1,
 433   STB_WEAK = 2,
 434   STB_LOOS = 10,
 435   STB_HIOS = 12,
 436   STB_LOPROC = 13,
 437   STB_HIPROC = 15
 438 };
 439
 440 // Symbol types from Sym st_info field.
 441
 442 enum STT
 443 {
 444   STT_NOTYPE = 0,
 445   STT_OBJECT = 1,
 446   STT_FUNC = 2,
 447   STT_SECTION = 3,
 448   STT_FILE = 4,
 449   STT_COMMON = 5,
 450   STT_TLS = 6,
 451   STT_LOOS = 10,
 452   STT_HIOS = 12,
 453   STT_LOPROC = 13,
 454   STT_HIPROC = 15
 455 };
 456
 457 inline STB
 458 elf_st_bind(unsigned char info)
 459 {
 460   return static_cast<STB>(info >> 4);
 461 }
 462
 463 inline STT
 464 elf_st_type(unsigned char info)
 465 {
 466   return static_cast<STT>(info & 0xf);
 467 }
 468
 469 inline unsigned char
 470 elf_st_info(STB bind, STT type)
 471 {
 472   return ((static_cast<unsigned char>(bind) << 4)
 473           + (static_cast<unsigned char>(type) & 0xf));
 474 }
 475
 476 // Symbol visibility from Sym st_other field.
 477
 478 enum STV
 479 {
 480   STV_DEFAULT = 0,
 481   STV_INTERNAL = 1,
 482   STV_HIDDEN = 2,
 483   STV_PROTECTED = 3
 484 };
 485
 486 inline STV
 487 elf_st_visibility(unsigned char other)
 488 {
 489   return static_cast<STV>(other & 0x3);
 490 }
 491
 492 inline unsigned char
 493 elf_st_nonvis(unsigned char other)
 494 {
 495   return static_cast<STV>(other >> 2);
 496 }
 497
 498 inline unsigned char
 499 elf_st_other(STV vis, unsigned char nonvis)
 500 {
 501   return ((nonvis << 2)
 502           + (static_cast<unsigned char>(vis) & 3));
 503 }
 504
 505 // Reloc information from Rel/Rela r_info field.
 506
 507 template<int size>
 508 unsigned int
 509 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 510
 511 template<>
 512 inline unsigned int
 513 elf_r_sym<32>(Elf_Word v)
 514 {
 515   return v >> 8;
 516 }
 517
 518 template<>
 519 inline unsigned int
 520 elf_r_sym<64>(Elf_Xword v)
 521 {
 522   return v >> 32;
 523 }
 524
 525 template<int size>
 526 unsigned int
 527 elf_r_type(typename Elf_types<size>::Elf_WXword);
 528
 529 template<>
 530 inline unsigned int
 531 elf_r_type<32>(Elf_Word v)
 532 {
 533   return v & 0xff;
 534 }
 535
 536 template<>
 537 inline unsigned int
 538 elf_r_type<64>(Elf_Xword v)
 539 {
 540   return v & 0xffffffff;
 541 }
 542
 543 template<int size>
 544 typename Elf_types<size>::Elf_WXword
 545 elf_r_info(unsigned int s, unsigned int t);
 546
 547 template<>
 548 inline Elf_Word
 549 elf_r_info<32>(unsigned int s, unsigned int t)
 550 {
 551   return (s << 8) + (t & 0xff);
 552 }
 553
 554 template<>
 555 inline Elf_Xword
 556 elf_r_info<64>(unsigned int s, unsigned int t)
 557 {
 558   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 559 }
 560
 561 // Dynamic tags found in the PT_DYNAMIC segment.
 562
 563 enum DT
 564 {
 565   DT_NULL = 0,
 566   DT_NEEDED = 1,
 567   DT_PLTRELSZ = 2,
 568   DT_PLTGOT = 3,
 569   DT_HASH = 4,
 570   DT_STRTAB = 5,
 571   DT_SYMTAB = 6,
 572   DT_RELA = 7,
 573   DT_RELASZ = 8,
 574   DT_RELAENT = 9,
 575   DT_STRSZ = 10,
 576   DT_SYMENT = 11,
 577   DT_INIT = 12,
 578   DT_FINI = 13,
 579   DT_SONAME = 14,
 580   DT_RPATH = 15,
 581   DT_SYMBOLIC = 16,
 582   DT_REL = 17,
 583   DT_RELSZ = 18,
 584   DT_RELENT = 19,
 585   DT_PLTREL = 20,
 586   DT_DEBUG = 21,
 587   DT_TEXTREL = 22,
 588   DT_JMPREL = 23,
 589   DT_BIND_NOW = 24,
 590   DT_INIT_ARRAY = 25,
 591   DT_FINI_ARRAY = 26,
 592   DT_INIT_ARRAYSZ = 27,
 593   DT_FINI_ARRAYSZ = 28,
 594   DT_RUNPATH = 29,
 595   DT_FLAGS = 30,
 596   DT_ENCODING = 32,
 597   DT_PREINIT_ARRAY = 33,
 598   DT_PREINIT_ARRAYSZ = 33,
 599   DT_LOOS = 0x6000000d,
 600   DT_HIOS = 0x6ffff000,
 601   DT_LOPROC = 0x70000000,
 602   DT_HIPROC = 0x7fffffff,
 603
 604   // The remaining values are extensions used by GNU or Solaris.
 605   DT_VALRNGLO = 0x6ffffd00,
 606   DT_GNU_PRELINKED = 0x6ffffdf5,
 607   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 608   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 609   DT_CHECKSUM = 0x6ffffdf8,
 610   DT_PLTPADSZ = 0x6ffffdf9,
 611   DT_MOVEENT = 0x6ffffdfa,
 612   DT_MOVESZ = 0x6ffffdfb,
 613   DT_FEATURE = 0x6ffffdfc,
 614   DT_POSFLAG_1 = 0x6ffffdfd,
 615   DT_SYMINSZ = 0x6ffffdfe,
 616   DT_SYMINENT = 0x6ffffdff,
 617   DT_VALRNGHI = 0x6ffffdff,
 618
 619   DT_ADDRRNGLO = 0x6ffffe00,
 620   DT_GNU_HASH = 0x6ffffef5,
 621   DT_TLSDESC_PLT = 0x6ffffef6,
 622   DT_TLSDESC_GOT = 0x6ffffef7,
 623   DT_GNU_CONFLICT = 0x6ffffef8,
 624   DT_GNU_LIBLIST = 0x6ffffef9,
 625   DT_CONFIG = 0x6ffffefa,
 626   DT_DEPAUDIT = 0x6ffffefb,
 627   DT_AUDIT = 0x6ffffefc,
 628   DT_PLTPAD = 0x6ffffefd,
 629   DT_MOVETAB = 0x6ffffefe,
 630   DT_SYMINFO = 0x6ffffeff,
 631   DT_ADDRRNGHI = 0x6ffffeff,
 632
 633   DT_RELACOUNT = 0x6ffffff9,
 634   DT_RELCOUNT = 0x6ffffffa,
 635   DT_FLAGS_1 = 0x6ffffffb,
 636   DT_VERDEF = 0x6ffffffc,
 637   DT_VERDEFNUM = 0x6ffffffd,
 638   DT_VERNEED = 0x6ffffffe,
 639   DT_VERNEEDNUM = 0x6fffffff,
 640
 641   DT_VERSYM = 0x6ffffff0,
 642
 643   DT_AUXILIARY = 0x7ffffffd,
 644   DT_USED = 0x7ffffffe,
 645   DT_FILTER = 0x7fffffff
 646 };
 647
 648 // Flags found in the DT_FLAGS dynamic element.
 649
 650 enum DF
 651 {
 652   DF_ORIGIN = 0x1,
 653   DF_SYMBOLIC = 0x2,
 654   DF_TEXTREL = 0x4,
 655   DF_BIND_NOW = 0x8,
 656   DF_STATIC_TLS = 0x10
 657 };
 658
 659 // Version numbers which appear in the vd_version field of a Verdef
 660 // structure.
 661
 662 const int VER_DEF_NONE = 0;
 663 const int VER_DEF_CURRENT = 1;
 664
 665 // Version numbers which appear in the vn_version field of a Verneed
 666 // structure.
 667
 668 const int VER_NEED_NONE = 0;
 669 const int VER_NEED_CURRENT = 1;
 670
 671 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 672 // Vernaux.
 673
 674 const int VER_FLG_BASE = 0x1;
 675 const int VER_FLG_WEAK = 0x2;
 676
 677 // Special constants found in the SHT_GNU_versym entries.
 678
 679 const int VER_NDX_LOCAL = 0;
 680 const int VER_NDX_GLOBAL = 1;
 681
 682 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 683 // the symbol is hidden and can only be seen when referenced using an
 684 // explicit version number.  This is a GNU extension.
 685
 686 const int VERSYM_HIDDEN = 0x8000;
 687
 688 // This is the mask for the rest of the data in a word read from a
 689 // SHT_GNU_versym section.
 690
 691 const int VERSYM_VERSION = 0x7fff;
 692
 693 } // End namespace elfcpp.
 694
 695 // Include internal details after defining the types.
 696 #include "elfcpp_internal.h"
 697
 698 namespace elfcpp
 699 {
 700
 701 // The offset of the ELF file header in the ELF file.
 702
 703 const int file_header_offset = 0;
 704
 705 // ELF structure sizes.
 706
 707 template<int size>
 708 struct Elf_sizes
 709 {
 710   // Size of ELF file header.
 711   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
 712   // Size of ELF segment header.
 713   static const int phdr_size = sizeof(internal::Phdr_data<size>);
 714   // Size of ELF section header.
 715   static const int shdr_size = sizeof(internal::Shdr_data<size>);
 716   // Size of ELF symbol table entry.
 717   static const int sym_size = sizeof(internal::Sym_data<size>);
 718   // Sizes of ELF reloc entries.
 719   static const int rel_size = sizeof(internal::Rel_data<size>);
 720   static const int rela_size = sizeof(internal::Rela_data<size>);
 721   // Size of ELF dynamic entry.
 722   static const int dyn_size = sizeof(internal::Dyn_data<size>);
 723   // Size of ELF version structures.
 724   static const int verdef_size = sizeof(internal::Verdef_data);
 725   static const int verdaux_size = sizeof(internal::Verdaux_data);
 726   static const int verneed_size = sizeof(internal::Verneed_data);
 727   static const int vernaux_size = sizeof(internal::Vernaux_data);
 728 };
 729
 730 // Accessor class for the ELF file header.
 731
 732 template<int size, bool big_endian>
 733 class Ehdr
 734 {
 735  public:
 736   Ehdr(const unsigned char* p)
 737     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
 738   { }
 739
 740   template<typename File>
 741   Ehdr(File* file, typename File::Location loc)
 742     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
 743            file->view(loc.file_offset, loc.data_size).data()))
 744   { }
 745
 746   const unsigned char*
 747   get_e_ident() const
 748   { return this->p_->e_ident; }
 749
 750   Elf_Half
 751   get_e_type() const
 752   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
 753
 754   Elf_Half
 755   get_e_machine() const
 756   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
 757
 758   Elf_Word
 759   get_e_version() const
 760   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
 761
 762   typename Elf_types<size>::Elf_Addr
 763   get_e_entry() const
 764   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
 765
 766   typename Elf_types<size>::Elf_Off
 767   get_e_phoff() const
 768   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
 769
 770   typename Elf_types<size>::Elf_Off
 771   get_e_shoff() const
 772   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
 773
 774   Elf_Word
 775   get_e_flags() const
 776   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
 777
 778   Elf_Half
 779   get_e_ehsize() const
 780   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
 781
 782   Elf_Half
 783   get_e_phentsize() const
 784   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
 785
 786   Elf_Half
 787   get_e_phnum() const
 788   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
 789
 790   Elf_Half
 791   get_e_shentsize() const
 792   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
 793
 794   Elf_Half
 795   get_e_shnum() const
 796   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
 797
 798   Elf_Half
 799   get_e_shstrndx() const
 800   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
 801
 802  private:
 803   const internal::Ehdr_data<size>* p_;
 804 };
 805
 806 // Write class for the ELF file header.
 807
 808 template<int size, bool big_endian>
 809 class Ehdr_write
 810 {
 811  public:
 812   Ehdr_write(unsigned char* p)
 813     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
 814   { }
 815
 816   void
 817   put_e_ident(const unsigned char v[EI_NIDENT]) const
 818   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
 819
 820   void
 821   put_e_type(Elf_Half v)
 822   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
 823
 824   void
 825   put_e_machine(Elf_Half v)
 826   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
 827
 828   void
 829   put_e_version(Elf_Word v)
 830   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
 831
 832   void
 833   put_e_entry(typename Elf_types<size>::Elf_Addr v)
 834   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
 835
 836   void
 837   put_e_phoff(typename Elf_types<size>::Elf_Off v)
 838   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
 839
 840   void
 841   put_e_shoff(typename Elf_types<size>::Elf_Off v)
 842   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
 843
 844   void
 845   put_e_flags(Elf_Word v)
 846   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
 847
 848   void
 849   put_e_ehsize(Elf_Half v)
 850   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
 851
 852   void
 853   put_e_phentsize(Elf_Half v)
 854   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
 855
 856   void
 857   put_e_phnum(Elf_Half v)
 858   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
 859
 860   void
 861   put_e_shentsize(Elf_Half v)
 862   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
 863
 864   void
 865   put_e_shnum(Elf_Half v)
 866   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
 867
 868   void
 869   put_e_shstrndx(Elf_Half v)
 870   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
 871
 872  private:
 873   internal::Ehdr_data<size>* p_;
 874 };
 875
 876 // Accessor class for an ELF section header.
 877
 878 template<int size, bool big_endian>
 879 class Shdr
 880 {
 881  public:
 882   Shdr(const unsigned char* p)
 883     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
 884   { }
 885
 886   template<typename File>
 887   Shdr(File* file, typename File::Location loc)
 888     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
 889            file->view(loc.file_offset, loc.data_size).data()))
 890   { }
 891
 892   Elf_Word
 893   get_sh_name() const
 894   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
 895
 896   Elf_Word
 897   get_sh_type() const
 898   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
 899
 900   typename Elf_types<size>::Elf_WXword
 901   get_sh_flags() const
 902   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
 903
 904   typename Elf_types<size>::Elf_Addr
 905   get_sh_addr() const
 906   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
 907
 908   typename Elf_types<size>::Elf_Off
 909   get_sh_offset() const
 910   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
 911
 912   typename Elf_types<size>::Elf_WXword
 913   get_sh_size() const
 914   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
 915
 916   Elf_Word
 917   get_sh_link() const
 918   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
 919
 920   Elf_Word
 921   get_sh_info() const
 922   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
 923
 924   typename Elf_types<size>::Elf_WXword
 925   get_sh_addralign() const
 926   { return
 927       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
 928
 929   typename Elf_types<size>::Elf_WXword
 930   get_sh_entsize() const
 931   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
 932
 933  private:
 934   const internal::Shdr_data<size>* p_;
 935 };
 936
 937 // Write class for an ELF section header.
 938
 939 template<int size, bool big_endian>
 940 class Shdr_write
 941 {
 942  public:
 943   Shdr_write(unsigned char* p)
 944     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
 945   { }
 946
 947   void
 948   put_sh_name(Elf_Word v)
 949   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
 950
 951   void
 952   put_sh_type(Elf_Word v)
 953   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
 954
 955   void
 956   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
 957   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
 958
 959   void
 960   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
 961   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
 962
 963   void
 964   put_sh_offset(typename Elf_types<size>::Elf_Off v)
 965   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
 966
 967   void
 968   put_sh_size(typename Elf_types<size>::Elf_WXword v)
 969   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
 970
 971   void
 972   put_sh_link(Elf_Word v)
 973   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
 974
 975   void
 976   put_sh_info(Elf_Word v)
 977   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
 978
 979   void
 980   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
 981   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
 982
 983   void
 984   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
 985   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
 986
 987  private:
 988   internal::Shdr_data<size>* p_;
 989 };
 990
 991 // Accessor class for an ELF segment header.
 992
 993 template<int size, bool big_endian>
 994 class Phdr
 995 {
 996  public:
 997   Phdr(const unsigned char* p)
 998     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
 999   { }
1000
1001   template<typename File>
1002   Phdr(File* file, typename File::Location loc)
1003     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1004            file->view(loc.file_offset, loc.data_size).data()))
1005   { }
1006
1007   Elf_Word
1008   get_p_type() const
1009   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1010
1011   typename Elf_types<size>::Elf_Off
1012   get_p_offset() const
1013   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1014
1015   typename Elf_types<size>::Elf_Addr
1016   get_p_vaddr() const
1017   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1018
1019   typename Elf_types<size>::Elf_Addr
1020   get_p_paddr() const
1021   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1022
1023   typename Elf_types<size>::Elf_WXword
1024   get_p_filesz() const
1025   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1026
1027   typename Elf_types<size>::Elf_WXword
1028   get_p_memsz() const
1029   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1030
1031   Elf_Word
1032   get_p_flags() const
1033   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1034
1035   typename Elf_types<size>::Elf_WXword
1036   get_p_align() const
1037   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1038
1039  private:
1040   const internal::Phdr_data<size>* p_;
1041 };
1042
1043 // Write class for an ELF segment header.
1044
1045 template<int size, bool big_endian>
1046 class Phdr_write
1047 {
1048  public:
1049   Phdr_write(unsigned char* p)
1050     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1051   { }
1052
1053   void
1054   put_p_type(Elf_Word v)
1055   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1056
1057   void
1058   put_p_offset(typename Elf_types<size>::Elf_Off v)
1059   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1060
1061   void
1062   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1063   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1064
1065   void
1066   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1067   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1068
1069   void
1070   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1071   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1072
1073   void
1074   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1075   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1076
1077   void
1078   put_p_flags(Elf_Word v)
1079   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1080
1081   void
1082   put_p_align(typename Elf_types<size>::Elf_WXword v)
1083   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1084
1085  private:
1086   internal::Phdr_data<size>* p_;
1087 };
1088
1089 // Accessor class for an ELF symbol table entry.
1090
1091 template<int size, bool big_endian>
1092 class Sym
1093 {
1094  public:
1095   Sym(const unsigned char* p)
1096     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1097   { }
1098
1099   template<typename File>
1100   Sym(File* file, typename File::Location loc)
1101     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1102            file->view(loc.file_offset, loc.data_size).data()))
1103   { }
1104
1105   Elf_Word
1106   get_st_name() const
1107   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1108
1109   typename Elf_types<size>::Elf_Addr
1110   get_st_value() const
1111   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1112
1113   typename Elf_types<size>::Elf_WXword
1114   get_st_size() const
1115   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1116
1117   unsigned char
1118   get_st_info() const
1119   { return this->p_->st_info; }
1120
1121   STB
1122   get_st_bind() const
1123   { return elf_st_bind(this->get_st_info()); }
1124
1125   STT
1126   get_st_type() const
1127   { return elf_st_type(this->get_st_info()); }
1128
1129   unsigned char
1130   get_st_other() const
1131   { return this->p_->st_other; }
1132
1133   STV
1134   get_st_visibility() const
1135   { return elf_st_visibility(this->get_st_other()); }
1136
1137   unsigned char
1138   get_st_nonvis() const
1139   { return elf_st_nonvis(this->get_st_other()); }
1140
1141   Elf_Half
1142   get_st_shndx() const
1143   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1144
1145  private:
1146   const internal::Sym_data<size>* p_;
1147 };
1148
1149 // Writer class for an ELF symbol table entry.
1150
1151 template<int size, bool big_endian>
1152 class Sym_write
1153 {
1154  public:
1155   Sym_write(unsigned char* p)
1156     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1157   { }
1158
1159   void
1160   put_st_name(Elf_Word v)
1161   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1162
1163   void
1164   put_st_value(typename Elf_types<size>::Elf_Addr v)
1165   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1166
1167   void
1168   put_st_size(typename Elf_types<size>::Elf_WXword v)
1169   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1170
1171   void
1172   put_st_info(unsigned char v)
1173   { this->p_->st_info = v; }
1174
1175   void
1176   put_st_info(STB bind, STT type)
1177   { this->p_->st_info = elf_st_info(bind, type); }
1178
1179   void
1180   put_st_other(unsigned char v)
1181   { this->p_->st_other = v; }
1182
1183   void
1184   put_st_other(STV vis, unsigned char nonvis)
1185   { this->p_->st_other = elf_st_other(vis, nonvis); }
1186
1187   void
1188   put_st_shndx(Elf_Half v)
1189   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1190
1191   Sym<size, big_endian>
1192   sym()
1193   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1194
1195  private:
1196   internal::Sym_data<size>* p_;
1197 };
1198
1199 // Accessor classes for an ELF REL relocation entry.
1200
1201 template<int size, bool big_endian>
1202 class Rel
1203 {
1204  public:
1205   Rel(const unsigned char* p)
1206     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1207   { }
1208
1209   template<typename File>
1210   Rel(File* file, typename File::Location loc)
1211     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1212            file->view(loc.file_offset, loc.data_size).data()))
1213   { }
1214
1215   typename Elf_types<size>::Elf_Addr
1216   get_r_offset() const
1217   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1218
1219   typename Elf_types<size>::Elf_WXword
1220   get_r_info() const
1221   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1222
1223  private:
1224   const internal::Rel_data<size>* p_;
1225 };
1226
1227 // Writer class for an ELF Rel relocation.
1228
1229 template<int size, bool big_endian>
1230 class Rel_write
1231 {
1232  public:
1233   Rel_write(unsigned char* p)
1234     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1235   { }
1236
1237   void
1238   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1239   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1240
1241   void
1242   put_r_info(typename Elf_types<size>::Elf_WXword v)
1243   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1244
1245  private:
1246   internal::Rel_data<size>* p_;
1247 };
1248
1249 // Accessor class for an ELF Rela relocation.
1250
1251 template<int size, bool big_endian>
1252 class Rela
1253 {
1254  public:
1255   Rela(const unsigned char* p)
1256     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1257   { }
1258
1259   template<typename File>
1260   Rela(File* file, typename File::Location loc)
1261     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1262            file->view(loc.file_offset, loc.data_size).data()))
1263   { }
1264
1265   typename Elf_types<size>::Elf_Addr
1266   get_r_offset() const
1267   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1268
1269   typename Elf_types<size>::Elf_WXword
1270   get_r_info() const
1271   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1272
1273   typename Elf_types<size>::Elf_Swxword
1274   get_r_addend() const
1275   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1276
1277  private:
1278   const internal::Rela_data<size>* p_;
1279 };
1280
1281 // Writer class for an ELF Rela relocation.
1282
1283 template<int size, bool big_endian>
1284 class Rela_write
1285 {
1286  public:
1287   Rela_write(unsigned char* p)
1288     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1289   { }
1290
1291   void
1292   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1293   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1294
1295   void
1296   put_r_info(typename Elf_types<size>::Elf_WXword v)
1297   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1298
1299   void
1300   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1301   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1302
1303  private:
1304   internal::Rela_data<size>* p_;
1305 };
1306
1307 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1308 // PT_DYNAMIC segment.
1309
1310 template<int size, bool big_endian>
1311 class Dyn
1312 {
1313  public:
1314   Dyn(const unsigned char* p)
1315     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1316   { }
1317
1318   template<typename File>
1319   Dyn(File* file, typename File::Location loc)
1320     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1321            file->view(loc.file_offset, loc.data_size).data()))
1322   { }
1323
1324   typename Elf_types<size>::Elf_Swxword
1325   get_d_tag() const
1326   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1327
1328   typename Elf_types<size>::Elf_WXword
1329   get_d_val() const
1330   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1331
1332   typename Elf_types<size>::Elf_Addr
1333   get_d_ptr() const
1334   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1335
1336  private:
1337   const internal::Dyn_data<size>* p_;
1338 };
1339
1340 // Write class for an entry in the SHT_DYNAMIC section.
1341
1342 template<int size, bool big_endian>
1343 class Dyn_write
1344 {
1345  public:
1346   Dyn_write(unsigned char* p)
1347     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1348   { }
1349
1350   void
1351   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1352   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1353
1354   void
1355   put_d_val(typename Elf_types<size>::Elf_WXword v)
1356   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1357
1358   void
1359   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1360   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1361
1362  private:
1363   internal::Dyn_data<size>* p_;
1364 };
1365
1366 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1367
1368 template<int size, bool big_endian>
1369 class Verdef
1370 {
1371  public:
1372   Verdef(const unsigned char* p)
1373     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1374   { }
1375
1376   template<typename File>
1377   Verdef(File* file, typename File::Location loc)
1378     : p_(reinterpret_cast<const internal::Verdef_data*>(
1379            file->view(loc.file_offset, loc.data_size).data()))
1380   { }
1381
1382   Elf_Half
1383   get_vd_version() const
1384   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1385
1386   Elf_Half
1387   get_vd_flags() const
1388   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1389
1390   Elf_Half
1391   get_vd_ndx() const
1392   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1393
1394   Elf_Half
1395   get_vd_cnt() const
1396   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1397
1398   Elf_Word
1399   get_vd_hash() const
1400   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1401
1402   Elf_Word
1403   get_vd_aux() const
1404   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1405
1406   Elf_Word
1407   get_vd_next() const
1408   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1409
1410  private:
1411   const internal::Verdef_data* p_;
1412 };
1413
1414 template<int size, bool big_endian>
1415 class Verdef_write
1416 {
1417  public:
1418   Verdef_write(unsigned char* p)
1419     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1420   { }
1421
1422   void
1423   set_vd_version(Elf_Half v)
1424   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1425
1426   void
1427   set_vd_flags(Elf_Half v)
1428   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1429
1430   void
1431   set_vd_ndx(Elf_Half v)
1432   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1433
1434   void
1435   set_vd_cnt(Elf_Half v)
1436   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1437
1438   void
1439   set_vd_hash(Elf_Word v)
1440   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1441
1442   void
1443   set_vd_aux(Elf_Word v)
1444   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1445
1446   void
1447   set_vd_next(Elf_Word v)
1448   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1449
1450  private:
1451   internal::Verdef_data* p_;
1452 };
1453
1454 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1455 // section.
1456
1457 template<int size, bool big_endian>
1458 class Verdaux
1459 {
1460  public:
1461   Verdaux(const unsigned char* p)
1462     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1463   { }
1464
1465   template<typename File>
1466   Verdaux(File* file, typename File::Location loc)
1467     : p_(reinterpret_cast<const internal::Verdaux_data*>(
1468            file->view(loc.file_offset, loc.data_size).data()))
1469   { }
1470
1471   Elf_Word
1472   get_vda_name() const
1473   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
1474
1475   Elf_Word
1476   get_vda_next() const
1477   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
1478
1479  private:
1480   const internal::Verdaux_data* p_;
1481 };
1482
1483 template<int size, bool big_endian>
1484 class Verdaux_write
1485 {
1486  public:
1487   Verdaux_write(unsigned char* p)
1488     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
1489   { }
1490
1491   void
1492   set_vda_name(Elf_Word v)
1493   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
1494
1495   void
1496   set_vda_next(Elf_Word v)
1497   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
1498
1499  private:
1500   internal::Verdaux_data* p_;
1501 };
1502
1503 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
1504
1505 template<int size, bool big_endian>
1506 class Verneed
1507 {
1508  public:
1509   Verneed(const unsigned char* p)
1510     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
1511   { }
1512
1513   template<typename File>
1514   Verneed(File* file, typename File::Location loc)
1515     : p_(reinterpret_cast<const internal::Verneed_data*>(
1516            file->view(loc.file_offset, loc.data_size).data()))
1517   { }
1518
1519   Elf_Half
1520   get_vn_version() const
1521   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
1522
1523   Elf_Half
1524   get_vn_cnt() const
1525   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
1526
1527   Elf_Word
1528   get_vn_file() const
1529   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
1530
1531   Elf_Word
1532   get_vn_aux() const
1533   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
1534
1535   Elf_Word
1536   get_vn_next() const
1537   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
1538
1539  private:
1540   const internal::Verneed_data* p_;
1541 };
1542
1543 template<int size, bool big_endian>
1544 class Verneed_write
1545 {
1546  public:
1547   Verneed_write(unsigned char* p)
1548     : p_(reinterpret_cast<internal::Verneed_data*>(p))
1549   { }
1550
1551   void
1552   set_vn_version(Elf_Half v)
1553   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
1554
1555   void
1556   set_vn_cnt(Elf_Half v)
1557   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
1558
1559   void
1560   set_vn_file(Elf_Word v)
1561   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
1562
1563   void
1564   set_vn_aux(Elf_Word v)
1565   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
1566
1567   void
1568   set_vn_next(Elf_Word v)
1569   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
1570
1571  private:
1572   internal::Verneed_data* p_;
1573 };
1574
1575 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
1576 // section.
1577
1578 template<int size, bool big_endian>
1579 class Vernaux
1580 {
1581  public:
1582   Vernaux(const unsigned char* p)
1583     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
1584   { }
1585
1586   template<typename File>
1587   Vernaux(File* file, typename File::Location loc)
1588     : p_(reinterpret_cast<const internal::Vernaux_data*>(
1589            file->view(loc.file_offset, loc.data_size).data()))
1590   { }
1591
1592   Elf_Word
1593   get_vna_hash() const
1594   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
1595
1596   Elf_Half
1597   get_vna_flags() const
1598   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
1599
1600   Elf_Half
1601   get_vna_other() const
1602   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
1603
1604   Elf_Word
1605   get_vna_name() const
1606   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
1607
1608   Elf_Word
1609   get_vna_next() const
1610   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
1611
1612  private:
1613   const internal::Vernaux_data* p_;
1614 };
1615
1616 template<int size, bool big_endian>
1617 class Vernaux_write
1618 {
1619  public:
1620   Vernaux_write(unsigned char* p)
1621     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
1622   { }
1623
1624   void
1625   set_vna_hash(Elf_Word v)
1626   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
1627
1628   void
1629   set_vna_flags(Elf_Half v)
1630   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
1631
1632   void
1633   set_vna_other(Elf_Half v)
1634   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
1635
1636   void
1637   set_vna_name(Elf_Word v)
1638   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
1639
1640   void
1641   set_vna_next(Elf_Word v)
1642   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
1643
1644  private:
1645   internal::Vernaux_data* p_;
1646 };
1647
1648 } // End namespace elfcpp.
1649
1650 #endif // !defined(ELFPCP_H)