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