elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright 2006, 2007, 2008, 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   // Provide for initial and final section ordering in conjunction
 321   // with the SHF_LINK_ORDER and SHF_ORDERED section flags.
 322   SHN_BEFORE = 0xff00,
 323   SHN_AFTER = 0xff01,
 324 };
 325
 326 // The valid values found in the Shdr sh_type field.
 327
 328 enum SHT
 329 {
 330   SHT_NULL = 0,
 331   SHT_PROGBITS = 1,
 332   SHT_SYMTAB = 2,
 333   SHT_STRTAB = 3,
 334   SHT_RELA = 4,
 335   SHT_HASH = 5,
 336   SHT_DYNAMIC = 6,
 337   SHT_NOTE = 7,
 338   SHT_NOBITS = 8,
 339   SHT_REL = 9,
 340   SHT_SHLIB = 10,
 341   SHT_DYNSYM = 11,
 342   SHT_INIT_ARRAY = 14,
 343   SHT_FINI_ARRAY = 15,
 344   SHT_PREINIT_ARRAY = 16,
 345   SHT_GROUP = 17,
 346   SHT_SYMTAB_SHNDX = 18,
 347   SHT_LOOS = 0x60000000,
 348   SHT_HIOS = 0x6fffffff,
 349   SHT_LOPROC = 0x70000000,
 350   SHT_HIPROC = 0x7fffffff,
 351   SHT_LOUSER = 0x80000000,
 352   SHT_HIUSER = 0xffffffff,
 353   // The remaining values are not in the standard.
 354   // Object attributes.
 355   SHT_GNU_ATTRIBUTES = 0x6ffffff5,
 356   // GNU style dynamic hash table.
 357   SHT_GNU_HASH = 0x6ffffff6,
 358   // List of prelink dependencies.
 359   SHT_GNU_LIBLIST = 0x6ffffff7,
 360   // Versions defined by file.
 361   SHT_SUNW_verdef = 0x6ffffffd,
 362   SHT_GNU_verdef = 0x6ffffffd,
 363   // Versions needed by file.
 364   SHT_SUNW_verneed = 0x6ffffffe,
 365   SHT_GNU_verneed = 0x6ffffffe,
 366   // Symbol versions,
 367   SHT_SUNW_versym = 0x6fffffff,
 368   SHT_GNU_versym = 0x6fffffff,
 369
 370   SHT_SPARC_GOTDATA = 0x70000000,
 371
 372   // Link editor is to sort the entries in this section based on the
 373   // address specified in the associated symbol table entry.
 374   SHT_ORDERED = 0x7fffffff,
 375 };
 376
 377 // The valid bit flags found in the Shdr sh_flags field.
 378
 379 enum SHF
 380 {
 381   SHF_WRITE = 0x1,
 382   SHF_ALLOC = 0x2,
 383   SHF_EXECINSTR = 0x4,
 384   SHF_MERGE = 0x10,
 385   SHF_STRINGS = 0x20,
 386   SHF_INFO_LINK = 0x40,
 387   SHF_LINK_ORDER = 0x80,
 388   SHF_OS_NONCONFORMING = 0x100,
 389   SHF_GROUP = 0x200,
 390   SHF_TLS = 0x400,
 391   SHF_MASKOS = 0x0ff00000,
 392   SHF_MASKPROC = 0xf0000000,
 393
 394   // Indicates this section requires ordering in relation to
 395   // other sections of the same type.  Ordered sections are
 396   // combined within the section pointed to by the sh_link entry.
 397   // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
 398   // sorted section is to precede or follow, respectively, all
 399   // other sections in the set being ordered.
 400   SHF_ORDERED = 0x40000000,
 401   // This section is excluded from input to the link-edit of an
 402   // executable or shared object.  This flag is ignored if SHF_ALLOC
 403   // is also set, or if relocations exist against the section.
 404   SHF_EXCLUDE = 0x80000000,
 405 };
 406
 407 // Bit flags which appear in the first 32-bit word of the section data
 408 // of a SHT_GROUP section.
 409
 410 enum
 411 {
 412   GRP_COMDAT = 0x1,
 413   GRP_MASKOS = 0x0ff00000,
 414   GRP_MASKPROC = 0xf0000000
 415 };
 416
 417 // The valid values found in the Phdr p_type field.
 418
 419 enum PT
 420 {
 421   PT_NULL = 0,
 422   PT_LOAD = 1,
 423   PT_DYNAMIC = 2,
 424   PT_INTERP = 3,
 425   PT_NOTE = 4,
 426   PT_SHLIB = 5,
 427   PT_PHDR = 6,
 428   PT_TLS = 7,
 429   PT_LOOS = 0x60000000,
 430   PT_HIOS = 0x6fffffff,
 431   PT_LOPROC = 0x70000000,
 432   PT_HIPROC = 0x7fffffff,
 433   // The remaining values are not in the standard.
 434   // Frame unwind information.
 435   PT_GNU_EH_FRAME = 0x6474e550,
 436   PT_SUNW_EH_FRAME = 0x6474e550,
 437   // Stack flags.
 438   PT_GNU_STACK = 0x6474e551,
 439   // Read only after relocation.
 440   PT_GNU_RELRO = 0x6474e552
 441 };
 442
 443 // The valid bit flags found in the Phdr p_flags field.
 444
 445 enum PF
 446 {
 447   PF_X = 0x1,
 448   PF_W = 0x2,
 449   PF_R = 0x4,
 450   PF_MASKOS = 0x0ff00000,
 451   PF_MASKPROC = 0xf0000000
 452 };
 453
 454 // Symbol binding from Sym st_info field.
 455
 456 enum STB
 457 {
 458   STB_LOCAL = 0,
 459   STB_GLOBAL = 1,
 460   STB_WEAK = 2,
 461   STB_LOOS = 10,
 462   STB_HIOS = 12,
 463   STB_LOPROC = 13,
 464   STB_HIPROC = 15
 465 };
 466
 467 // Symbol types from Sym st_info field.
 468
 469 enum STT
 470 {
 471   STT_NOTYPE = 0,
 472   STT_OBJECT = 1,
 473   STT_FUNC = 2,
 474   STT_SECTION = 3,
 475   STT_FILE = 4,
 476   STT_COMMON = 5,
 477   STT_TLS = 6,
 478   STT_LOOS = 10,
 479   STT_IFUNC = 10,
 480   STT_HIOS = 12,
 481   STT_LOPROC = 13,
 482   STT_HIPROC = 15,
 483
 484   // The section type that must be used for register symbols on
 485   // Sparc.  These symbols initialize a global register.
 486   STT_SPARC_REGISTER = 13,
 487 };
 488
 489 inline STB
 490 elf_st_bind(unsigned char info)
 491 {
 492   return static_cast<STB>(info >> 4);
 493 }
 494
 495 inline STT
 496 elf_st_type(unsigned char info)
 497 {
 498   return static_cast<STT>(info & 0xf);
 499 }
 500
 501 inline unsigned char
 502 elf_st_info(STB bind, STT type)
 503 {
 504   return ((static_cast<unsigned char>(bind) << 4)
 505           + (static_cast<unsigned char>(type) & 0xf));
 506 }
 507
 508 // Symbol visibility from Sym st_other field.
 509
 510 enum STV
 511 {
 512   STV_DEFAULT = 0,
 513   STV_INTERNAL = 1,
 514   STV_HIDDEN = 2,
 515   STV_PROTECTED = 3
 516 };
 517
 518 inline STV
 519 elf_st_visibility(unsigned char other)
 520 {
 521   return static_cast<STV>(other & 0x3);
 522 }
 523
 524 inline unsigned char
 525 elf_st_nonvis(unsigned char other)
 526 {
 527   return static_cast<STV>(other >> 2);
 528 }
 529
 530 inline unsigned char
 531 elf_st_other(STV vis, unsigned char nonvis)
 532 {
 533   return ((nonvis << 2)
 534           + (static_cast<unsigned char>(vis) & 3));
 535 }
 536
 537 // Reloc information from Rel/Rela r_info field.
 538
 539 template<int size>
 540 unsigned int
 541 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 542
 543 template<>
 544 inline unsigned int
 545 elf_r_sym<32>(Elf_Word v)
 546 {
 547   return v >> 8;
 548 }
 549
 550 template<>
 551 inline unsigned int
 552 elf_r_sym<64>(Elf_Xword v)
 553 {
 554   return v >> 32;
 555 }
 556
 557 template<int size>
 558 unsigned int
 559 elf_r_type(typename Elf_types<size>::Elf_WXword);
 560
 561 template<>
 562 inline unsigned int
 563 elf_r_type<32>(Elf_Word v)
 564 {
 565   return v & 0xff;
 566 }
 567
 568 template<>
 569 inline unsigned int
 570 elf_r_type<64>(Elf_Xword v)
 571 {
 572   return v & 0xffffffff;
 573 }
 574
 575 template<int size>
 576 typename Elf_types<size>::Elf_WXword
 577 elf_r_info(unsigned int s, unsigned int t);
 578
 579 template<>
 580 inline Elf_Word
 581 elf_r_info<32>(unsigned int s, unsigned int t)
 582 {
 583   return (s << 8) + (t & 0xff);
 584 }
 585
 586 template<>
 587 inline Elf_Xword
 588 elf_r_info<64>(unsigned int s, unsigned int t)
 589 {
 590   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 591 }
 592
 593 // Dynamic tags found in the PT_DYNAMIC segment.
 594
 595 enum DT
 596 {
 597   DT_NULL = 0,
 598   DT_NEEDED = 1,
 599   DT_PLTRELSZ = 2,
 600   DT_PLTGOT = 3,
 601   DT_HASH = 4,
 602   DT_STRTAB = 5,
 603   DT_SYMTAB = 6,
 604   DT_RELA = 7,
 605   DT_RELASZ = 8,
 606   DT_RELAENT = 9,
 607   DT_STRSZ = 10,
 608   DT_SYMENT = 11,
 609   DT_INIT = 12,
 610   DT_FINI = 13,
 611   DT_SONAME = 14,
 612   DT_RPATH = 15,
 613   DT_SYMBOLIC = 16,
 614   DT_REL = 17,
 615   DT_RELSZ = 18,
 616   DT_RELENT = 19,
 617   DT_PLTREL = 20,
 618   DT_DEBUG = 21,
 619   DT_TEXTREL = 22,
 620   DT_JMPREL = 23,
 621   DT_BIND_NOW = 24,
 622   DT_INIT_ARRAY = 25,
 623   DT_FINI_ARRAY = 26,
 624   DT_INIT_ARRAYSZ = 27,
 625   DT_FINI_ARRAYSZ = 28,
 626   DT_RUNPATH = 29,
 627   DT_FLAGS = 30,
 628   DT_ENCODING = 32,
 629   DT_PREINIT_ARRAY = 33,
 630   DT_PREINIT_ARRAYSZ = 33,
 631   DT_LOOS = 0x6000000d,
 632   DT_HIOS = 0x6ffff000,
 633   DT_LOPROC = 0x70000000,
 634   DT_HIPROC = 0x7fffffff,
 635
 636   // The remaining values are extensions used by GNU or Solaris.
 637   DT_VALRNGLO = 0x6ffffd00,
 638   DT_GNU_PRELINKED = 0x6ffffdf5,
 639   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 640   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 641   DT_CHECKSUM = 0x6ffffdf8,
 642   DT_PLTPADSZ = 0x6ffffdf9,
 643   DT_MOVEENT = 0x6ffffdfa,
 644   DT_MOVESZ = 0x6ffffdfb,
 645   DT_FEATURE = 0x6ffffdfc,
 646   DT_POSFLAG_1 = 0x6ffffdfd,
 647   DT_SYMINSZ = 0x6ffffdfe,
 648   DT_SYMINENT = 0x6ffffdff,
 649   DT_VALRNGHI = 0x6ffffdff,
 650
 651   DT_ADDRRNGLO = 0x6ffffe00,
 652   DT_GNU_HASH = 0x6ffffef5,
 653   DT_TLSDESC_PLT = 0x6ffffef6,
 654   DT_TLSDESC_GOT = 0x6ffffef7,
 655   DT_GNU_CONFLICT = 0x6ffffef8,
 656   DT_GNU_LIBLIST = 0x6ffffef9,
 657   DT_CONFIG = 0x6ffffefa,
 658   DT_DEPAUDIT = 0x6ffffefb,
 659   DT_AUDIT = 0x6ffffefc,
 660   DT_PLTPAD = 0x6ffffefd,
 661   DT_MOVETAB = 0x6ffffefe,
 662   DT_SYMINFO = 0x6ffffeff,
 663   DT_ADDRRNGHI = 0x6ffffeff,
 664
 665   DT_RELACOUNT = 0x6ffffff9,
 666   DT_RELCOUNT = 0x6ffffffa,
 667   DT_FLAGS_1 = 0x6ffffffb,
 668   DT_VERDEF = 0x6ffffffc,
 669   DT_VERDEFNUM = 0x6ffffffd,
 670   DT_VERNEED = 0x6ffffffe,
 671   DT_VERNEEDNUM = 0x6fffffff,
 672
 673   DT_VERSYM = 0x6ffffff0,
 674
 675   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 676   DT_PPC_GOT = 0x70000000,
 677
 678   // Specify the start of the .glink section.
 679   DT_PPC64_GLINK = 0x70000000,
 680
 681   // Specify the start and size of the .opd section.
 682   DT_PPC64_OPD = 0x70000001,
 683   DT_PPC64_OPDSZ = 0x70000002,
 684
 685   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 686   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 687   // symbol in the symbol table.
 688   DT_SPARC_REGISTER = 0x70000001,
 689
 690   DT_AUXILIARY = 0x7ffffffd,
 691   DT_USED = 0x7ffffffe,
 692   DT_FILTER = 0x7fffffff
 693 };
 694
 695 // Flags found in the DT_FLAGS dynamic element.
 696
 697 enum DF
 698 {
 699   DF_ORIGIN = 0x1,
 700   DF_SYMBOLIC = 0x2,
 701   DF_TEXTREL = 0x4,
 702   DF_BIND_NOW = 0x8,
 703   DF_STATIC_TLS = 0x10
 704 };
 705
 706 // Flags found in the DT_FLAGS_1 dynamic element.
 707
 708 enum DF_1
 709 {
 710   DF_1_NOW = 0x1,
 711   DF_1_GLOBAL = 0x2,
 712   DF_1_GROUP = 0x4,
 713   DF_1_NODELETE = 0x8,
 714   DF_1_LOADFLTR = 0x10,
 715   DF_1_INITFIRST = 0x20,
 716   DF_1_NOOPEN = 0x40,
 717   DF_1_ORIGIN = 0x80,
 718   DF_1_DIRECT = 0x100,
 719   DF_1_TRANS = 0x200,
 720   DF_1_INTERPOSE = 0x400,
 721   DF_1_NODEFLIB = 0x800,
 722   DF_1_NODUMP = 0x1000,
 723   DF_1_CONLFAT = 0x2000,
 724 };
 725
 726 // Version numbers which appear in the vd_version field of a Verdef
 727 // structure.
 728
 729 const int VER_DEF_NONE = 0;
 730 const int VER_DEF_CURRENT = 1;
 731
 732 // Version numbers which appear in the vn_version field of a Verneed
 733 // structure.
 734
 735 const int VER_NEED_NONE = 0;
 736 const int VER_NEED_CURRENT = 1;
 737
 738 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 739 // Vernaux.
 740
 741 const int VER_FLG_BASE = 0x1;
 742 const int VER_FLG_WEAK = 0x2;
 743
 744 // Special constants found in the SHT_GNU_versym entries.
 745
 746 const int VER_NDX_LOCAL = 0;
 747 const int VER_NDX_GLOBAL = 1;
 748
 749 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 750 // the symbol is hidden and can only be seen when referenced using an
 751 // explicit version number.  This is a GNU extension.
 752
 753 const int VERSYM_HIDDEN = 0x8000;
 754
 755 // This is the mask for the rest of the data in a word read from a
 756 // SHT_GNU_versym section.
 757
 758 const int VERSYM_VERSION = 0x7fff;
 759
 760 // Note descriptor type codes for notes in a non-core file with an
 761 // empty name.
 762
 763 enum
 764 {
 765   // A version string.
 766   NT_VERSION = 1,
 767   // An architecture string.
 768   NT_ARCH = 2
 769 };
 770
 771 // Note descriptor type codes for notes in a non-core file with the
 772 // name "GNU".
 773
 774 enum
 775 {
 776   // The minimum ABI level.  This is used by the dynamic linker to
 777   // describe the minimal kernel version on which a shared library may
 778   // be used.  Th value should be four words.  Word 0 is an OS
 779   // descriptor (see below).  Word 1 is the major version of the ABI.
 780   // Word 2 is the minor version.  Word 3 is the subminor version.
 781   NT_GNU_ABI_TAG = 1,
 782   // Hardware capabilities information.  Word 0 is the number of
 783   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 784   // the descriptor is a series of entries, where each entry is a
 785   // single byte followed by a nul terminated string.  The byte gives
 786   // the bit number to test if enabled in the bitmask.
 787   NT_GNU_HWCAP = 2,
 788   // The build ID as set by the linker's --build-id option.  The
 789   // format of the descriptor depends on the build ID style.
 790   NT_GNU_BUILD_ID = 3,
 791   // The version of gold used to link.  Th descriptor is just a
 792   // string.
 793   NT_GNU_GOLD_VERSION = 4
 794 };
 795
 796 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 797
 798 enum
 799 {
 800   ELF_NOTE_OS_LINUX = 0,
 801   ELF_NOTE_OS_GNU = 1,
 802   ELF_NOTE_OS_SOLARIS2 = 2,
 803   ELF_NOTE_OS_FREEBSD = 3,
 804   ELF_NOTE_OS_NETBSD = 4,
 805   ELF_NOTE_OS_SYLLABLE = 5
 806 };
 807
 808 } // End namespace elfcpp.
 809
 810 // Include internal details after defining the types.
 811 #include "elfcpp_internal.h"
 812
 813 namespace elfcpp
 814 {
 815
 816 // The offset of the ELF file header in the ELF file.
 817
 818 const int file_header_offset = 0;
 819
 820 // ELF structure sizes.
 821
 822 template<int size>
 823 struct Elf_sizes
 824 {
 825   // Size of ELF file header.
 826   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
 827   // Size of ELF segment header.
 828   static const int phdr_size = sizeof(internal::Phdr_data<size>);
 829   // Size of ELF section header.
 830   static const int shdr_size = sizeof(internal::Shdr_data<size>);
 831   // Size of ELF symbol table entry.
 832   static const int sym_size = sizeof(internal::Sym_data<size>);
 833   // Sizes of ELF reloc entries.
 834   static const int rel_size = sizeof(internal::Rel_data<size>);
 835   static const int rela_size = sizeof(internal::Rela_data<size>);
 836   // Size of ELF dynamic entry.
 837   static const int dyn_size = sizeof(internal::Dyn_data<size>);
 838   // Size of ELF version structures.
 839   static const int verdef_size = sizeof(internal::Verdef_data);
 840   static const int verdaux_size = sizeof(internal::Verdaux_data);
 841   static const int verneed_size = sizeof(internal::Verneed_data);
 842   static const int vernaux_size = sizeof(internal::Vernaux_data);
 843 };
 844
 845 // Accessor class for the ELF file header.
 846
 847 template<int size, bool big_endian>
 848 class Ehdr
 849 {
 850  public:
 851   Ehdr(const unsigned char* p)
 852     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
 853   { }
 854
 855   template<typename File>
 856   Ehdr(File* file, typename File::Location loc)
 857     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
 858            file->view(loc.file_offset, loc.data_size).data()))
 859   { }
 860
 861   const unsigned char*
 862   get_e_ident() const
 863   { return this->p_->e_ident; }
 864
 865   Elf_Half
 866   get_e_type() const
 867   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
 868
 869   Elf_Half
 870   get_e_machine() const
 871   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
 872
 873   Elf_Word
 874   get_e_version() const
 875   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
 876
 877   typename Elf_types<size>::Elf_Addr
 878   get_e_entry() const
 879   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
 880
 881   typename Elf_types<size>::Elf_Off
 882   get_e_phoff() const
 883   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
 884
 885   typename Elf_types<size>::Elf_Off
 886   get_e_shoff() const
 887   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
 888
 889   Elf_Word
 890   get_e_flags() const
 891   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
 892
 893   Elf_Half
 894   get_e_ehsize() const
 895   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
 896
 897   Elf_Half
 898   get_e_phentsize() const
 899   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
 900
 901   Elf_Half
 902   get_e_phnum() const
 903   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
 904
 905   Elf_Half
 906   get_e_shentsize() const
 907   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
 908
 909   Elf_Half
 910   get_e_shnum() const
 911   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
 912
 913   Elf_Half
 914   get_e_shstrndx() const
 915   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
 916
 917  private:
 918   const internal::Ehdr_data<size>* p_;
 919 };
 920
 921 // Write class for the ELF file header.
 922
 923 template<int size, bool big_endian>
 924 class Ehdr_write
 925 {
 926  public:
 927   Ehdr_write(unsigned char* p)
 928     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
 929   { }
 930
 931   void
 932   put_e_ident(const unsigned char v[EI_NIDENT]) const
 933   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
 934
 935   void
 936   put_e_type(Elf_Half v)
 937   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
 938
 939   void
 940   put_e_machine(Elf_Half v)
 941   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
 942
 943   void
 944   put_e_version(Elf_Word v)
 945   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
 946
 947   void
 948   put_e_entry(typename Elf_types<size>::Elf_Addr v)
 949   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
 950
 951   void
 952   put_e_phoff(typename Elf_types<size>::Elf_Off v)
 953   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
 954
 955   void
 956   put_e_shoff(typename Elf_types<size>::Elf_Off v)
 957   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
 958
 959   void
 960   put_e_flags(Elf_Word v)
 961   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
 962
 963   void
 964   put_e_ehsize(Elf_Half v)
 965   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
 966
 967   void
 968   put_e_phentsize(Elf_Half v)
 969   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
 970
 971   void
 972   put_e_phnum(Elf_Half v)
 973   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
 974
 975   void
 976   put_e_shentsize(Elf_Half v)
 977   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
 978
 979   void
 980   put_e_shnum(Elf_Half v)
 981   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
 982
 983   void
 984   put_e_shstrndx(Elf_Half v)
 985   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
 986
 987  private:
 988   internal::Ehdr_data<size>* p_;
 989 };
 990
 991 // Accessor class for an ELF section header.
 992
 993 template<int size, bool big_endian>
 994 class Shdr
 995 {
 996  public:
 997   Shdr(const unsigned char* p)
 998     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
 999   { }
1000
1001   template<typename File>
1002   Shdr(File* file, typename File::Location loc)
1003     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1004            file->view(loc.file_offset, loc.data_size).data()))
1005   { }
1006
1007   Elf_Word
1008   get_sh_name() const
1009   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1010
1011   Elf_Word
1012   get_sh_type() const
1013   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1014
1015   typename Elf_types<size>::Elf_WXword
1016   get_sh_flags() const
1017   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1018
1019   typename Elf_types<size>::Elf_Addr
1020   get_sh_addr() const
1021   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1022
1023   typename Elf_types<size>::Elf_Off
1024   get_sh_offset() const
1025   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1026
1027   typename Elf_types<size>::Elf_WXword
1028   get_sh_size() const
1029   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1030
1031   Elf_Word
1032   get_sh_link() const
1033   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1034
1035   Elf_Word
1036   get_sh_info() const
1037   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1038
1039   typename Elf_types<size>::Elf_WXword
1040   get_sh_addralign() const
1041   { return
1042       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1043
1044   typename Elf_types<size>::Elf_WXword
1045   get_sh_entsize() const
1046   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1047
1048  private:
1049   const internal::Shdr_data<size>* p_;
1050 };
1051
1052 // Write class for an ELF section header.
1053
1054 template<int size, bool big_endian>
1055 class Shdr_write
1056 {
1057  public:
1058   Shdr_write(unsigned char* p)
1059     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1060   { }
1061
1062   void
1063   put_sh_name(Elf_Word v)
1064   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1065
1066   void
1067   put_sh_type(Elf_Word v)
1068   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1069
1070   void
1071   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1072   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1073
1074   void
1075   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1076   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1077
1078   void
1079   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1080   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1081
1082   void
1083   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1084   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1085
1086   void
1087   put_sh_link(Elf_Word v)
1088   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1089
1090   void
1091   put_sh_info(Elf_Word v)
1092   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1093
1094   void
1095   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1096   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1097
1098   void
1099   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1100   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1101
1102  private:
1103   internal::Shdr_data<size>* p_;
1104 };
1105
1106 // Accessor class for an ELF segment header.
1107
1108 template<int size, bool big_endian>
1109 class Phdr
1110 {
1111  public:
1112   Phdr(const unsigned char* p)
1113     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1114   { }
1115
1116   template<typename File>
1117   Phdr(File* file, typename File::Location loc)
1118     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1119            file->view(loc.file_offset, loc.data_size).data()))
1120   { }
1121
1122   Elf_Word
1123   get_p_type() const
1124   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1125
1126   typename Elf_types<size>::Elf_Off
1127   get_p_offset() const
1128   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1129
1130   typename Elf_types<size>::Elf_Addr
1131   get_p_vaddr() const
1132   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1133
1134   typename Elf_types<size>::Elf_Addr
1135   get_p_paddr() const
1136   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1137
1138   typename Elf_types<size>::Elf_WXword
1139   get_p_filesz() const
1140   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1141
1142   typename Elf_types<size>::Elf_WXword
1143   get_p_memsz() const
1144   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1145
1146   Elf_Word
1147   get_p_flags() const
1148   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1149
1150   typename Elf_types<size>::Elf_WXword
1151   get_p_align() const
1152   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1153
1154  private:
1155   const internal::Phdr_data<size>* p_;
1156 };
1157
1158 // Write class for an ELF segment header.
1159
1160 template<int size, bool big_endian>
1161 class Phdr_write
1162 {
1163  public:
1164   Phdr_write(unsigned char* p)
1165     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1166   { }
1167
1168   void
1169   put_p_type(Elf_Word v)
1170   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1171
1172   void
1173   put_p_offset(typename Elf_types<size>::Elf_Off v)
1174   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1175
1176   void
1177   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1178   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1179
1180   void
1181   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1182   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1183
1184   void
1185   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1186   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1187
1188   void
1189   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1190   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1191
1192   void
1193   put_p_flags(Elf_Word v)
1194   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1195
1196   void
1197   put_p_align(typename Elf_types<size>::Elf_WXword v)
1198   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1199
1200  private:
1201   internal::Phdr_data<size>* p_;
1202 };
1203
1204 // Accessor class for an ELF symbol table entry.
1205
1206 template<int size, bool big_endian>
1207 class Sym
1208 {
1209  public:
1210   Sym(const unsigned char* p)
1211     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1212   { }
1213
1214   template<typename File>
1215   Sym(File* file, typename File::Location loc)
1216     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1217            file->view(loc.file_offset, loc.data_size).data()))
1218   { }
1219
1220   Elf_Word
1221   get_st_name() const
1222   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1223
1224   typename Elf_types<size>::Elf_Addr
1225   get_st_value() const
1226   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1227
1228   typename Elf_types<size>::Elf_WXword
1229   get_st_size() const
1230   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1231
1232   unsigned char
1233   get_st_info() const
1234   { return this->p_->st_info; }
1235
1236   STB
1237   get_st_bind() const
1238   { return elf_st_bind(this->get_st_info()); }
1239
1240   STT
1241   get_st_type() const
1242   { return elf_st_type(this->get_st_info()); }
1243
1244   unsigned char
1245   get_st_other() const
1246   { return this->p_->st_other; }
1247
1248   STV
1249   get_st_visibility() const
1250   { return elf_st_visibility(this->get_st_other()); }
1251
1252   unsigned char
1253   get_st_nonvis() const
1254   { return elf_st_nonvis(this->get_st_other()); }
1255
1256   Elf_Half
1257   get_st_shndx() const
1258   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1259
1260  private:
1261   const internal::Sym_data<size>* p_;
1262 };
1263
1264 // Writer class for an ELF symbol table entry.
1265
1266 template<int size, bool big_endian>
1267 class Sym_write
1268 {
1269  public:
1270   Sym_write(unsigned char* p)
1271     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1272   { }
1273
1274   void
1275   put_st_name(Elf_Word v)
1276   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1277
1278   void
1279   put_st_value(typename Elf_types<size>::Elf_Addr v)
1280   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1281
1282   void
1283   put_st_size(typename Elf_types<size>::Elf_WXword v)
1284   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1285
1286   void
1287   put_st_info(unsigned char v)
1288   { this->p_->st_info = v; }
1289
1290   void
1291   put_st_info(STB bind, STT type)
1292   { this->p_->st_info = elf_st_info(bind, type); }
1293
1294   void
1295   put_st_other(unsigned char v)
1296   { this->p_->st_other = v; }
1297
1298   void
1299   put_st_other(STV vis, unsigned char nonvis)
1300   { this->p_->st_other = elf_st_other(vis, nonvis); }
1301
1302   void
1303   put_st_shndx(Elf_Half v)
1304   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1305
1306   Sym<size, big_endian>
1307   sym()
1308   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1309
1310  private:
1311   internal::Sym_data<size>* p_;
1312 };
1313
1314 // Accessor classes for an ELF REL relocation entry.
1315
1316 template<int size, bool big_endian>
1317 class Rel
1318 {
1319  public:
1320   Rel(const unsigned char* p)
1321     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1322   { }
1323
1324   template<typename File>
1325   Rel(File* file, typename File::Location loc)
1326     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1327            file->view(loc.file_offset, loc.data_size).data()))
1328   { }
1329
1330   typename Elf_types<size>::Elf_Addr
1331   get_r_offset() const
1332   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1333
1334   typename Elf_types<size>::Elf_WXword
1335   get_r_info() const
1336   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1337
1338  private:
1339   const internal::Rel_data<size>* p_;
1340 };
1341
1342 // Writer class for an ELF Rel relocation.
1343
1344 template<int size, bool big_endian>
1345 class Rel_write
1346 {
1347  public:
1348   Rel_write(unsigned char* p)
1349     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1350   { }
1351
1352   void
1353   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1354   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1355
1356   void
1357   put_r_info(typename Elf_types<size>::Elf_WXword v)
1358   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1359
1360  private:
1361   internal::Rel_data<size>* p_;
1362 };
1363
1364 // Accessor class for an ELF Rela relocation.
1365
1366 template<int size, bool big_endian>
1367 class Rela
1368 {
1369  public:
1370   Rela(const unsigned char* p)
1371     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1372   { }
1373
1374   template<typename File>
1375   Rela(File* file, typename File::Location loc)
1376     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1377            file->view(loc.file_offset, loc.data_size).data()))
1378   { }
1379
1380   typename Elf_types<size>::Elf_Addr
1381   get_r_offset() const
1382   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1383
1384   typename Elf_types<size>::Elf_WXword
1385   get_r_info() const
1386   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1387
1388   typename Elf_types<size>::Elf_Swxword
1389   get_r_addend() const
1390   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1391
1392  private:
1393   const internal::Rela_data<size>* p_;
1394 };
1395
1396 // Writer class for an ELF Rela relocation.
1397
1398 template<int size, bool big_endian>
1399 class Rela_write
1400 {
1401  public:
1402   Rela_write(unsigned char* p)
1403     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1404   { }
1405
1406   void
1407   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1408   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1409
1410   void
1411   put_r_info(typename Elf_types<size>::Elf_WXword v)
1412   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1413
1414   void
1415   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1416   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1417
1418  private:
1419   internal::Rela_data<size>* p_;
1420 };
1421
1422 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1423 // PT_DYNAMIC segment.
1424
1425 template<int size, bool big_endian>
1426 class Dyn
1427 {
1428  public:
1429   Dyn(const unsigned char* p)
1430     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1431   { }
1432
1433   template<typename File>
1434   Dyn(File* file, typename File::Location loc)
1435     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1436            file->view(loc.file_offset, loc.data_size).data()))
1437   { }
1438
1439   typename Elf_types<size>::Elf_Swxword
1440   get_d_tag() const
1441   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1442
1443   typename Elf_types<size>::Elf_WXword
1444   get_d_val() const
1445   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1446
1447   typename Elf_types<size>::Elf_Addr
1448   get_d_ptr() const
1449   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1450
1451  private:
1452   const internal::Dyn_data<size>* p_;
1453 };
1454
1455 // Write class for an entry in the SHT_DYNAMIC section.
1456
1457 template<int size, bool big_endian>
1458 class Dyn_write
1459 {
1460  public:
1461   Dyn_write(unsigned char* p)
1462     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1463   { }
1464
1465   void
1466   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1467   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1468
1469   void
1470   put_d_val(typename Elf_types<size>::Elf_WXword v)
1471   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1472
1473   void
1474   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1475   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1476
1477  private:
1478   internal::Dyn_data<size>* p_;
1479 };
1480
1481 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1482
1483 template<int size, bool big_endian>
1484 class Verdef
1485 {
1486  public:
1487   Verdef(const unsigned char* p)
1488     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1489   { }
1490
1491   template<typename File>
1492   Verdef(File* file, typename File::Location loc)
1493     : p_(reinterpret_cast<const internal::Verdef_data*>(
1494            file->view(loc.file_offset, loc.data_size).data()))
1495   { }
1496
1497   Elf_Half
1498   get_vd_version() const
1499   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1500
1501   Elf_Half
1502   get_vd_flags() const
1503   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1504
1505   Elf_Half
1506   get_vd_ndx() const
1507   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1508
1509   Elf_Half
1510   get_vd_cnt() const
1511   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1512
1513   Elf_Word
1514   get_vd_hash() const
1515   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1516
1517   Elf_Word
1518   get_vd_aux() const
1519   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1520
1521   Elf_Word
1522   get_vd_next() const
1523   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1524
1525  private:
1526   const internal::Verdef_data* p_;
1527 };
1528
1529 template<int size, bool big_endian>
1530 class Verdef_write
1531 {
1532  public:
1533   Verdef_write(unsigned char* p)
1534     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1535   { }
1536
1537   void
1538   set_vd_version(Elf_Half v)
1539   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1540
1541   void
1542   set_vd_flags(Elf_Half v)
1543   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1544
1545   void
1546   set_vd_ndx(Elf_Half v)
1547   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1548
1549   void
1550   set_vd_cnt(Elf_Half v)
1551   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1552
1553   void
1554   set_vd_hash(Elf_Word v)
1555   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1556
1557   void
1558   set_vd_aux(Elf_Word v)
1559   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1560
1561   void
1562   set_vd_next(Elf_Word v)
1563   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1564
1565  private:
1566   internal::Verdef_data* p_;
1567 };
1568
1569 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1570 // section.
1571
1572 template<int size, bool big_endian>
1573 class Verdaux
1574 {
1575  public:
1576   Verdaux(const unsigned char* p)
1577     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1578   { }
1579
1580   template<typename File>
1581   Verdaux(File* file, typename File::Location loc)
1582     : p_(reinterpret_cast<const internal::Verdaux_data*>(
1583            file->view(loc.file_offset, loc.data_size).data()))
1584   { }
1585
1586   Elf_Word
1587   get_vda_name() const
1588   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
1589
1590   Elf_Word
1591   get_vda_next() const
1592   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
1593
1594  private:
1595   const internal::Verdaux_data* p_;
1596 };
1597
1598 template<int size, bool big_endian>
1599 class Verdaux_write
1600 {
1601  public:
1602   Verdaux_write(unsigned char* p)
1603     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
1604   { }
1605
1606   void
1607   set_vda_name(Elf_Word v)
1608   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
1609
1610   void
1611   set_vda_next(Elf_Word v)
1612   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
1613
1614  private:
1615   internal::Verdaux_data* p_;
1616 };
1617
1618 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
1619
1620 template<int size, bool big_endian>
1621 class Verneed
1622 {
1623  public:
1624   Verneed(const unsigned char* p)
1625     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
1626   { }
1627
1628   template<typename File>
1629   Verneed(File* file, typename File::Location loc)
1630     : p_(reinterpret_cast<const internal::Verneed_data*>(
1631            file->view(loc.file_offset, loc.data_size).data()))
1632   { }
1633
1634   Elf_Half
1635   get_vn_version() const
1636   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
1637
1638   Elf_Half
1639   get_vn_cnt() const
1640   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
1641
1642   Elf_Word
1643   get_vn_file() const
1644   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
1645
1646   Elf_Word
1647   get_vn_aux() const
1648   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
1649
1650   Elf_Word
1651   get_vn_next() const
1652   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
1653
1654  private:
1655   const internal::Verneed_data* p_;
1656 };
1657
1658 template<int size, bool big_endian>
1659 class Verneed_write
1660 {
1661  public:
1662   Verneed_write(unsigned char* p)
1663     : p_(reinterpret_cast<internal::Verneed_data*>(p))
1664   { }
1665
1666   void
1667   set_vn_version(Elf_Half v)
1668   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
1669
1670   void
1671   set_vn_cnt(Elf_Half v)
1672   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
1673
1674   void
1675   set_vn_file(Elf_Word v)
1676   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
1677
1678   void
1679   set_vn_aux(Elf_Word v)
1680   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
1681
1682   void
1683   set_vn_next(Elf_Word v)
1684   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
1685
1686  private:
1687   internal::Verneed_data* p_;
1688 };
1689
1690 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
1691 // section.
1692
1693 template<int size, bool big_endian>
1694 class Vernaux
1695 {
1696  public:
1697   Vernaux(const unsigned char* p)
1698     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
1699   { }
1700
1701   template<typename File>
1702   Vernaux(File* file, typename File::Location loc)
1703     : p_(reinterpret_cast<const internal::Vernaux_data*>(
1704            file->view(loc.file_offset, loc.data_size).data()))
1705   { }
1706
1707   Elf_Word
1708   get_vna_hash() const
1709   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
1710
1711   Elf_Half
1712   get_vna_flags() const
1713   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
1714
1715   Elf_Half
1716   get_vna_other() const
1717   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
1718
1719   Elf_Word
1720   get_vna_name() const
1721   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
1722
1723   Elf_Word
1724   get_vna_next() const
1725   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
1726
1727  private:
1728   const internal::Vernaux_data* p_;
1729 };
1730
1731 template<int size, bool big_endian>
1732 class Vernaux_write
1733 {
1734  public:
1735   Vernaux_write(unsigned char* p)
1736     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
1737   { }
1738
1739   void
1740   set_vna_hash(Elf_Word v)
1741   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
1742
1743   void
1744   set_vna_flags(Elf_Half v)
1745   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
1746
1747   void
1748   set_vna_other(Elf_Half v)
1749   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
1750
1751   void
1752   set_vna_name(Elf_Word v)
1753   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
1754
1755   void
1756   set_vna_next(Elf_Word v)
1757   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
1758
1759  private:
1760   internal::Vernaux_data* p_;
1761 };
1762
1763 } // End namespace elfcpp.
1764
1765 #endif // !defined(ELFPCP_H)