elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright (C) 2006-2016 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_GNU = 3,
 133   // ELFOSABI_LINUX is an alias for ELFOSABI_GNU.
 134   ELFOSABI_LINUX = 3,
 135   ELFOSABI_SOLARIS = 6,
 136   ELFOSABI_AIX = 7,
 137   ELFOSABI_IRIX = 8,
 138   ELFOSABI_FREEBSD = 9,
 139   ELFOSABI_TRU64 = 10,
 140   ELFOSABI_MODESTO = 11,
 141   ELFOSABI_OPENBSD = 12,
 142   ELFOSABI_OPENVMS = 13,
 143   ELFOSABI_NSK = 14,
 144   ELFOSABI_AROS = 15,
 145   // A GNU extension for the ARM.
 146   ELFOSABI_ARM = 97,
 147   // A GNU extension for the MSP.
 148   ELFOSABI_STANDALONE = 255
 149 };
 150
 151 // The valid values found in the Ehdr e_type field.
 152
 153 enum ET
 154 {
 155   ET_NONE = 0,
 156   ET_REL = 1,
 157   ET_EXEC = 2,
 158   ET_DYN = 3,
 159   ET_CORE = 4,
 160   ET_LOOS = 0xfe00,
 161   ET_HIOS = 0xfeff,
 162   ET_LOPROC = 0xff00,
 163   ET_HIPROC = 0xffff
 164 };
 165
 166 // The valid values found in the Ehdr e_machine field.
 167
 168 enum EM
 169 {
 170   EM_NONE = 0,
 171   EM_M32 = 1,
 172   EM_SPARC = 2,
 173   EM_386 = 3,
 174   EM_68K = 4,
 175   EM_88K = 5,
 176   EM_IAMCU = 6,
 177   EM_860 = 7,
 178   EM_MIPS = 8,
 179   EM_S370 = 9,
 180   EM_MIPS_RS3_LE = 10,
 181   // 11 was the old Sparc V9 ABI.
 182   // 12 through 14 are reserved.
 183   EM_PARISC = 15,
 184   // 16 is reserved.
 185   // Some old PowerPC object files use 17.
 186   EM_VPP500 = 17,
 187   EM_SPARC32PLUS = 18,
 188   EM_960 = 19,
 189   EM_PPC = 20,
 190   EM_PPC64 = 21,
 191   EM_S390 = 22,
 192   // 23 through 35 are served.
 193   EM_V800 = 36,
 194   EM_FR20 = 37,
 195   EM_RH32 = 38,
 196   EM_RCE = 39,
 197   EM_ARM = 40,
 198   EM_ALPHA = 41,
 199   EM_SH = 42,
 200   EM_SPARCV9 = 43,
 201   EM_TRICORE = 44,
 202   EM_ARC = 45,
 203   EM_H8_300 = 46,
 204   EM_H8_300H = 47,
 205   EM_H8S = 48,
 206   EM_H8_500 = 49,
 207   EM_IA_64 = 50,
 208   EM_MIPS_X = 51,
 209   EM_COLDFIRE = 52,
 210   EM_68HC12 = 53,
 211   EM_MMA = 54,
 212   EM_PCP = 55,
 213   EM_NCPU = 56,
 214   EM_NDR1 = 57,
 215   EM_STARCORE = 58,
 216   EM_ME16 = 59,
 217   EM_ST100 = 60,
 218   EM_TINYJ = 61,
 219   EM_X86_64 = 62,
 220   EM_PDSP = 63,
 221   EM_PDP10 = 64,
 222   EM_PDP11 = 65,
 223   EM_FX66 = 66,
 224   EM_ST9PLUS = 67,
 225   EM_ST7 = 68,
 226   EM_68HC16 = 69,
 227   EM_68HC11 = 70,
 228   EM_68HC08 = 71,
 229   EM_68HC05 = 72,
 230   EM_SVX = 73,
 231   EM_ST19 = 74,
 232   EM_VAX = 75,
 233   EM_CRIS = 76,
 234   EM_JAVELIN = 77,
 235   EM_FIREPATH = 78,
 236   EM_ZSP = 79,
 237   EM_MMIX = 80,
 238   EM_HUANY = 81,
 239   EM_PRISM = 82,
 240   EM_AVR = 83,
 241   EM_FR30 = 84,
 242   EM_D10V = 85,
 243   EM_D30V = 86,
 244   EM_V850 = 87,
 245   EM_M32R = 88,
 246   EM_MN10300 = 89,
 247   EM_MN10200 = 90,
 248   EM_PJ = 91,
 249   EM_OR1K = 92,
 250   EM_ARC_A5 = 93,
 251   EM_XTENSA = 94,
 252   EM_VIDEOCORE = 95,
 253   EM_TMM_GPP = 96,
 254   EM_NS32K = 97,
 255   EM_TPC = 98,
 256   // Some old picoJava object files use 99 (EM_PJ is correct).
 257   EM_SNP1K = 99,
 258   EM_ST200 = 100,
 259   EM_IP2K = 101,
 260   EM_MAX = 102,
 261   EM_CR = 103,
 262   EM_F2MC16 = 104,
 263   EM_MSP430 = 105,
 264   EM_BLACKFIN = 106,
 265   EM_SE_C33 = 107,
 266   EM_SEP = 108,
 267   EM_ARCA = 109,
 268   EM_UNICORE = 110,
 269   EM_ALTERA_NIOS2 = 113,
 270   EM_CRX = 114,
 271   EM_AARCH64 = 183,
 272   EM_TILEGX = 191,
 273   // The Morph MT.
 274   EM_MT = 0x2530,
 275   // DLX.
 276   EM_DLX = 0x5aa5,
 277   // FRV.
 278   EM_FRV = 0x5441,
 279   // Infineon Technologies 16-bit microcontroller with C166-V2 core.
 280   EM_X16X = 0x4688,
 281   // Xstorym16
 282   EM_XSTORMY16 = 0xad45,
 283   // Renesas M32C
 284   EM_M32C = 0xfeb0,
 285   // Vitesse IQ2000
 286   EM_IQ2000 = 0xfeba,
 287   // NIOS
 288   EM_NIOS32 = 0xfebb
 289   // Old AVR objects used 0x1057 (EM_AVR is correct).
 290   // Old MSP430 objects used 0x1059 (EM_MSP430 is correct).
 291   // Old FR30 objects used 0x3330 (EM_FR30 is correct).
 292   // Old OpenRISC objects used 0x3426 and 0x8472 (EM_OR1K is correct).
 293   // Old D10V objects used 0x7650 (EM_D10V is correct).
 294   // Old D30V objects used 0x7676 (EM_D30V is correct).
 295   // Old IP2X objects used 0x8217 (EM_IP2K is correct).
 296   // Old PowerPC objects used 0x9025 (EM_PPC is correct).
 297   // Old Alpha objects used 0x9026 (EM_ALPHA is correct).
 298   // Old M32R objects used 0x9041 (EM_M32R is correct).
 299   // Old V850 objects used 0x9080 (EM_V850 is correct).
 300   // Old S/390 objects used 0xa390 (EM_S390 is correct).
 301   // Old Xtensa objects used 0xabc7 (EM_XTENSA is correct).
 302   // Old MN10300 objects used 0xbeef (EM_MN10300 is correct).
 303   // Old MN10200 objects used 0xdead (EM_MN10200 is correct).
 304 };
 305
 306 // A special value found in the Ehdr e_phnum field.
 307
 308 enum
 309 {
 310   // Number of program segments stored in sh_info field of first
 311   // section headre.
 312   PN_XNUM = 0xffff
 313 };
 314
 315 // Special section indices.
 316
 317 enum
 318 {
 319   SHN_UNDEF = 0,
 320   SHN_LORESERVE = 0xff00,
 321   SHN_LOPROC = 0xff00,
 322   SHN_HIPROC = 0xff1f,
 323   SHN_LOOS = 0xff20,
 324   SHN_HIOS = 0xff3f,
 325   SHN_ABS = 0xfff1,
 326   SHN_COMMON = 0xfff2,
 327   SHN_XINDEX = 0xffff,
 328   SHN_HIRESERVE = 0xffff,
 329
 330   // Provide for initial and final section ordering in conjunction
 331   // with the SHF_LINK_ORDER and SHF_ORDERED section flags.
 332   SHN_BEFORE = 0xff00,
 333   SHN_AFTER = 0xff01,
 334
 335   // x86_64 specific large common symbol.
 336   SHN_X86_64_LCOMMON = 0xff02
 337 };
 338
 339 // The valid values found in the Shdr sh_type field.
 340
 341 enum SHT
 342 {
 343   SHT_NULL = 0,
 344   SHT_PROGBITS = 1,
 345   SHT_SYMTAB = 2,
 346   SHT_STRTAB = 3,
 347   SHT_RELA = 4,
 348   SHT_HASH = 5,
 349   SHT_DYNAMIC = 6,
 350   SHT_NOTE = 7,
 351   SHT_NOBITS = 8,
 352   SHT_REL = 9,
 353   SHT_SHLIB = 10,
 354   SHT_DYNSYM = 11,
 355   SHT_INIT_ARRAY = 14,
 356   SHT_FINI_ARRAY = 15,
 357   SHT_PREINIT_ARRAY = 16,
 358   SHT_GROUP = 17,
 359   SHT_SYMTAB_SHNDX = 18,
 360   SHT_LOOS = 0x60000000,
 361   SHT_HIOS = 0x6fffffff,
 362   SHT_LOPROC = 0x70000000,
 363   SHT_HIPROC = 0x7fffffff,
 364   SHT_LOUSER = 0x80000000,
 365   SHT_HIUSER = 0xffffffff,
 366   // The remaining values are not in the standard.
 367   // Incremental build data.
 368   SHT_GNU_INCREMENTAL_INPUTS = 0x6fff4700,
 369   SHT_GNU_INCREMENTAL_SYMTAB = 0x6fff4701,
 370   SHT_GNU_INCREMENTAL_RELOCS = 0x6fff4702,
 371   SHT_GNU_INCREMENTAL_GOT_PLT = 0x6fff4703,
 372   // Object attributes.
 373   SHT_GNU_ATTRIBUTES = 0x6ffffff5,
 374   // GNU style dynamic hash table.
 375   SHT_GNU_HASH = 0x6ffffff6,
 376   // List of prelink dependencies.
 377   SHT_GNU_LIBLIST = 0x6ffffff7,
 378   // Versions defined by file.
 379   SHT_SUNW_verdef = 0x6ffffffd,
 380   SHT_GNU_verdef = 0x6ffffffd,
 381   // Versions needed by file.
 382   SHT_SUNW_verneed = 0x6ffffffe,
 383   SHT_GNU_verneed = 0x6ffffffe,
 384   // Symbol versions,
 385   SHT_SUNW_versym = 0x6fffffff,
 386   SHT_GNU_versym = 0x6fffffff,
 387
 388   SHT_SPARC_GOTDATA = 0x70000000,
 389
 390   // ARM-specific section types.
 391   // Exception Index table.
 392   SHT_ARM_EXIDX = 0x70000001,
 393   // BPABI DLL dynamic linking pre-emption map.
 394   SHT_ARM_PREEMPTMAP = 0x70000002,
 395   // Object file compatibility attributes.
 396   SHT_ARM_ATTRIBUTES = 0x70000003,
 397   // Support for debugging overlaid programs.
 398   SHT_ARM_DEBUGOVERLAY = 0x70000004,
 399   SHT_ARM_OVERLAYSECTION = 0x70000005,
 400
 401   // x86_64 unwind information.
 402   SHT_X86_64_UNWIND = 0x70000001,
 403
 404   // MIPS-specific section types.
 405   // Section contains register usage information.
 406   SHT_MIPS_REGINFO = 0x70000006,
 407   // Section contains miscellaneous options.
 408   SHT_MIPS_OPTIONS = 0x7000000d,
 409   // ABI related flags section.
 410   SHT_MIPS_ABIFLAGS = 0x7000002a,
 411
 412   // AARCH64-specific section type.
 413   SHT_AARCH64_ATTRIBUTES = 0x70000003,
 414
 415   // Link editor is to sort the entries in this section based on the
 416   // address specified in the associated symbol table entry.
 417   SHT_ORDERED = 0x7fffffff
 418 };
 419
 420 // The valid bit flags found in the Shdr sh_flags field.
 421
 422 enum SHF
 423 {
 424   SHF_WRITE = 0x1,
 425   SHF_ALLOC = 0x2,
 426   SHF_EXECINSTR = 0x4,
 427   SHF_MERGE = 0x10,
 428   SHF_STRINGS = 0x20,
 429   SHF_INFO_LINK = 0x40,
 430   SHF_LINK_ORDER = 0x80,
 431   SHF_OS_NONCONFORMING = 0x100,
 432   SHF_GROUP = 0x200,
 433   SHF_TLS = 0x400,
 434   SHF_COMPRESSED = 0x800,
 435   SHF_MASKOS = 0x0ff00000,
 436   SHF_MASKPROC = 0xf0000000,
 437
 438   // Indicates this section requires ordering in relation to
 439   // other sections of the same type.  Ordered sections are
 440   // combined within the section pointed to by the sh_link entry.
 441   // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
 442   // sorted section is to precede or follow, respectively, all
 443   // other sections in the set being ordered.
 444   SHF_ORDERED = 0x40000000,
 445   // This section is excluded from input to the link-edit of an
 446   // executable or shared object.  This flag is ignored if SHF_ALLOC
 447   // is also set, or if relocations exist against the section.
 448   SHF_EXCLUDE = 0x80000000,
 449
 450   // Section with data that is GP relative addressable.
 451   SHF_MIPS_GPREL = 0x10000000,
 452
 453   // x86_64 specific large section.
 454   SHF_X86_64_LARGE = 0x10000000
 455 };
 456
 457 // Values which appear in the first Elf_WXword of the section data
 458 // of a SHF_COMPRESSED section.
 459 enum
 460 {
 461   ELFCOMPRESS_ZLIB = 1,
 462   ELFCOMPRESS_LOOS = 0x60000000,
 463   ELFCOMPRESS_HIOS = 0x6fffffff,
 464   ELFCOMPRESS_LOPROC = 0x70000000,
 465   ELFCOMPRESS_HIPROC = 0x7fffffff,
 466 };
 467
 468 // Bit flags which appear in the first 32-bit word of the section data
 469 // of a SHT_GROUP section.
 470
 471 enum
 472 {
 473   GRP_COMDAT = 0x1,
 474   GRP_MASKOS = 0x0ff00000,
 475   GRP_MASKPROC = 0xf0000000
 476 };
 477
 478 // The valid values found in the Phdr p_type field.
 479
 480 enum PT
 481 {
 482   PT_NULL = 0,
 483   PT_LOAD = 1,
 484   PT_DYNAMIC = 2,
 485   PT_INTERP = 3,
 486   PT_NOTE = 4,
 487   PT_SHLIB = 5,
 488   PT_PHDR = 6,
 489   PT_TLS = 7,
 490   PT_LOOS = 0x60000000,
 491   PT_HIOS = 0x6fffffff,
 492   PT_LOPROC = 0x70000000,
 493   PT_HIPROC = 0x7fffffff,
 494   // The remaining values are not in the standard.
 495   // Frame unwind information.
 496   PT_GNU_EH_FRAME = 0x6474e550,
 497   PT_SUNW_EH_FRAME = 0x6474e550,
 498   // Stack flags.
 499   PT_GNU_STACK = 0x6474e551,
 500   // Read only after relocation.
 501   PT_GNU_RELRO = 0x6474e552,
 502   // Platform architecture compatibility information
 503   PT_ARM_ARCHEXT = 0x70000000,
 504   // Exception unwind tables
 505   PT_ARM_EXIDX = 0x70000001,
 506   // Register usage information.  Identifies one .reginfo section.
 507   PT_MIPS_REGINFO =0x70000000,
 508   // Runtime procedure table.
 509   PT_MIPS_RTPROC = 0x70000001,
 510   // .MIPS.options section.
 511   PT_MIPS_OPTIONS = 0x70000002,
 512   // .MIPS.abiflags section.
 513   PT_MIPS_ABIFLAGS = 0x70000003,
 514   // Platform architecture compatibility information
 515   PT_AARCH64_ARCHEXT = 0x70000000,
 516   // Exception unwind tables
 517   PT_AARCH64_UNWIND = 0x70000001
 518 };
 519
 520 // The valid bit flags found in the Phdr p_flags field.
 521
 522 enum PF
 523 {
 524   PF_X = 0x1,
 525   PF_W = 0x2,
 526   PF_R = 0x4,
 527   PF_MASKOS = 0x0ff00000,
 528   PF_MASKPROC = 0xf0000000
 529 };
 530
 531 // Symbol binding from Sym st_info field.
 532
 533 enum STB
 534 {
 535   STB_LOCAL = 0,
 536   STB_GLOBAL = 1,
 537   STB_WEAK = 2,
 538   STB_LOOS = 10,
 539   STB_GNU_UNIQUE = 10,
 540   STB_HIOS = 12,
 541   STB_LOPROC = 13,
 542   STB_HIPROC = 15
 543 };
 544
 545 // Symbol types from Sym st_info field.
 546
 547 enum STT
 548 {
 549   STT_NOTYPE = 0,
 550   STT_OBJECT = 1,
 551   STT_FUNC = 2,
 552   STT_SECTION = 3,
 553   STT_FILE = 4,
 554   STT_COMMON = 5,
 555   STT_TLS = 6,
 556
 557   // GNU extension: symbol value points to a function which is called
 558   // at runtime to determine the final value of the symbol.
 559   STT_GNU_IFUNC = 10,
 560
 561   STT_LOOS = 10,
 562   STT_HIOS = 12,
 563   STT_LOPROC = 13,
 564   STT_HIPROC = 15,
 565
 566   // The section type that must be used for register symbols on
 567   // Sparc.  These symbols initialize a global register.
 568   STT_SPARC_REGISTER = 13,
 569
 570   // ARM: a THUMB function.  This is not defined in ARM ELF Specification but
 571   // used by the GNU tool-chain.
 572   STT_ARM_TFUNC = 13
 573 };
 574
 575 inline STB
 576 elf_st_bind(unsigned char info)
 577 {
 578   return static_cast<STB>(info >> 4);
 579 }
 580
 581 inline STT
 582 elf_st_type(unsigned char info)
 583 {
 584   return static_cast<STT>(info & 0xf);
 585 }
 586
 587 inline unsigned char
 588 elf_st_info(STB bind, STT type)
 589 {
 590   return ((static_cast<unsigned char>(bind) << 4)
 591           + (static_cast<unsigned char>(type) & 0xf));
 592 }
 593
 594 // Symbol visibility from Sym st_other field.
 595
 596 enum STV
 597 {
 598   STV_DEFAULT = 0,
 599   STV_INTERNAL = 1,
 600   STV_HIDDEN = 2,
 601   STV_PROTECTED = 3
 602 };
 603
 604 inline STV
 605 elf_st_visibility(unsigned char other)
 606 {
 607   return static_cast<STV>(other & 0x3);
 608 }
 609
 610 inline unsigned char
 611 elf_st_nonvis(unsigned char other)
 612 {
 613   return static_cast<STV>(other >> 2);
 614 }
 615
 616 inline unsigned char
 617 elf_st_other(STV vis, unsigned char nonvis)
 618 {
 619   return ((nonvis << 2)
 620           + (static_cast<unsigned char>(vis) & 3));
 621 }
 622
 623 // Reloc information from Rel/Rela r_info field.
 624
 625 template<int size>
 626 unsigned int
 627 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 628
 629 template<>
 630 inline unsigned int
 631 elf_r_sym<32>(Elf_Word v)
 632 {
 633   return v >> 8;
 634 }
 635
 636 template<>
 637 inline unsigned int
 638 elf_r_sym<64>(Elf_Xword v)
 639 {
 640   return v >> 32;
 641 }
 642
 643 template<int size>
 644 unsigned int
 645 elf_r_type(typename Elf_types<size>::Elf_WXword);
 646
 647 template<>
 648 inline unsigned int
 649 elf_r_type<32>(Elf_Word v)
 650 {
 651   return v & 0xff;
 652 }
 653
 654 template<>
 655 inline unsigned int
 656 elf_r_type<64>(Elf_Xword v)
 657 {
 658   return v & 0xffffffff;
 659 }
 660
 661 template<int size>
 662 typename Elf_types<size>::Elf_WXword
 663 elf_r_info(unsigned int s, unsigned int t);
 664
 665 template<>
 666 inline Elf_Word
 667 elf_r_info<32>(unsigned int s, unsigned int t)
 668 {
 669   return (s << 8) + (t & 0xff);
 670 }
 671
 672 template<>
 673 inline Elf_Xword
 674 elf_r_info<64>(unsigned int s, unsigned int t)
 675 {
 676   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 677 }
 678
 679 // Dynamic tags found in the PT_DYNAMIC segment.
 680
 681 enum DT
 682 {
 683   DT_NULL = 0,
 684   DT_NEEDED = 1,
 685   DT_PLTRELSZ = 2,
 686   DT_PLTGOT = 3,
 687   DT_HASH = 4,
 688   DT_STRTAB = 5,
 689   DT_SYMTAB = 6,
 690   DT_RELA = 7,
 691   DT_RELASZ = 8,
 692   DT_RELAENT = 9,
 693   DT_STRSZ = 10,
 694   DT_SYMENT = 11,
 695   DT_INIT = 12,
 696   DT_FINI = 13,
 697   DT_SONAME = 14,
 698   DT_RPATH = 15,
 699   DT_SYMBOLIC = 16,
 700   DT_REL = 17,
 701   DT_RELSZ = 18,
 702   DT_RELENT = 19,
 703   DT_PLTREL = 20,
 704   DT_DEBUG = 21,
 705   DT_TEXTREL = 22,
 706   DT_JMPREL = 23,
 707   DT_BIND_NOW = 24,
 708   DT_INIT_ARRAY = 25,
 709   DT_FINI_ARRAY = 26,
 710   DT_INIT_ARRAYSZ = 27,
 711   DT_FINI_ARRAYSZ = 28,
 712   DT_RUNPATH = 29,
 713   DT_FLAGS = 30,
 714
 715   // This is used to mark a range of dynamic tags.  It is not really
 716   // a tag value.
 717   DT_ENCODING = 32,
 718
 719   DT_PREINIT_ARRAY = 32,
 720   DT_PREINIT_ARRAYSZ = 33,
 721   DT_LOOS = 0x6000000d,
 722   DT_HIOS = 0x6ffff000,
 723   DT_LOPROC = 0x70000000,
 724   DT_HIPROC = 0x7fffffff,
 725
 726   // The remaining values are extensions used by GNU or Solaris.
 727   DT_VALRNGLO = 0x6ffffd00,
 728   DT_GNU_PRELINKED = 0x6ffffdf5,
 729   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 730   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 731   DT_CHECKSUM = 0x6ffffdf8,
 732   DT_PLTPADSZ = 0x6ffffdf9,
 733   DT_MOVEENT = 0x6ffffdfa,
 734   DT_MOVESZ = 0x6ffffdfb,
 735   DT_FEATURE = 0x6ffffdfc,
 736   DT_POSFLAG_1 = 0x6ffffdfd,
 737   DT_SYMINSZ = 0x6ffffdfe,
 738   DT_SYMINENT = 0x6ffffdff,
 739   DT_VALRNGHI = 0x6ffffdff,
 740
 741   DT_ADDRRNGLO = 0x6ffffe00,
 742   DT_GNU_HASH = 0x6ffffef5,
 743   DT_TLSDESC_PLT = 0x6ffffef6,
 744   DT_TLSDESC_GOT = 0x6ffffef7,
 745   DT_GNU_CONFLICT = 0x6ffffef8,
 746   DT_GNU_LIBLIST = 0x6ffffef9,
 747   DT_CONFIG = 0x6ffffefa,
 748   DT_DEPAUDIT = 0x6ffffefb,
 749   DT_AUDIT = 0x6ffffefc,
 750   DT_PLTPAD = 0x6ffffefd,
 751   DT_MOVETAB = 0x6ffffefe,
 752   DT_SYMINFO = 0x6ffffeff,
 753   DT_ADDRRNGHI = 0x6ffffeff,
 754
 755   DT_RELACOUNT = 0x6ffffff9,
 756   DT_RELCOUNT = 0x6ffffffa,
 757   DT_FLAGS_1 = 0x6ffffffb,
 758   DT_VERDEF = 0x6ffffffc,
 759   DT_VERDEFNUM = 0x6ffffffd,
 760   DT_VERNEED = 0x6ffffffe,
 761   DT_VERNEEDNUM = 0x6fffffff,
 762
 763   DT_VERSYM = 0x6ffffff0,
 764
 765   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 766   DT_PPC_GOT = 0x70000000,
 767
 768   // Specify the start of the .glink section.
 769   DT_PPC64_GLINK = 0x70000000,
 770
 771   // Specify the start and size of the .opd section.
 772   DT_PPC64_OPD = 0x70000001,
 773   DT_PPC64_OPDSZ = 0x70000002,
 774
 775   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 776   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 777   // symbol in the symbol table.
 778   DT_SPARC_REGISTER = 0x70000001,
 779
 780   // MIPS specific dynamic array tags.
 781   // 32 bit version number for runtime linker interface.
 782   DT_MIPS_RLD_VERSION = 0x70000001,
 783   // Time stamp.
 784   DT_MIPS_TIME_STAMP = 0x70000002,
 785   // Checksum of external strings and common sizes.
 786   DT_MIPS_ICHECKSUM = 0x70000003,
 787   // Index of version string in string table.
 788   DT_MIPS_IVERSION = 0x70000004,
 789   // 32 bits of flags.
 790   DT_MIPS_FLAGS = 0x70000005,
 791   // Base address of the segment.
 792   DT_MIPS_BASE_ADDRESS = 0x70000006,
 793   // ???
 794   DT_MIPS_MSYM = 0x70000007,
 795   // Address of .conflict section.
 796   DT_MIPS_CONFLICT = 0x70000008,
 797   // Address of .liblist section.
 798   DT_MIPS_LIBLIST = 0x70000009,
 799   // Number of local global offset table entries.
 800   DT_MIPS_LOCAL_GOTNO = 0x7000000a,
 801   // Number of entries in the .conflict section.
 802   DT_MIPS_CONFLICTNO = 0x7000000b,
 803   // Number of entries in the .liblist section.
 804   DT_MIPS_LIBLISTNO = 0x70000010,
 805   // Number of entries in the .dynsym section.
 806   DT_MIPS_SYMTABNO = 0x70000011,
 807   // Index of first external dynamic symbol not referenced locally.
 808   DT_MIPS_UNREFEXTNO = 0x70000012,
 809   // Index of first dynamic symbol in global offset table.
 810   DT_MIPS_GOTSYM = 0x70000013,
 811   // Number of page table entries in global offset table.
 812   DT_MIPS_HIPAGENO = 0x70000014,
 813   // Address of run time loader map, used for debugging.
 814   DT_MIPS_RLD_MAP = 0x70000016,
 815   // Delta C++ class definition.
 816   DT_MIPS_DELTA_CLASS = 0x70000017,
 817   // Number of entries in DT_MIPS_DELTA_CLASS.
 818   DT_MIPS_DELTA_CLASS_NO = 0x70000018,
 819   // Delta C++ class instances.
 820   DT_MIPS_DELTA_INSTANCE = 0x70000019,
 821   // Number of entries in DT_MIPS_DELTA_INSTANCE.
 822   DT_MIPS_DELTA_INSTANCE_NO = 0x7000001a,
 823   // Delta relocations.
 824   DT_MIPS_DELTA_RELOC = 0x7000001b,
 825   // Number of entries in DT_MIPS_DELTA_RELOC.
 826   DT_MIPS_DELTA_RELOC_NO = 0x7000001c,
 827   // Delta symbols that Delta relocations refer to.
 828   DT_MIPS_DELTA_SYM = 0x7000001d,
 829   // Number of entries in DT_MIPS_DELTA_SYM.
 830   DT_MIPS_DELTA_SYM_NO = 0x7000001e,
 831   // Delta symbols that hold class declarations.
 832   DT_MIPS_DELTA_CLASSSYM = 0x70000020,
 833   // Number of entries in DT_MIPS_DELTA_CLASSSYM.
 834   DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021,
 835   // Flags indicating information about C++ flavor.
 836   DT_MIPS_CXX_FLAGS = 0x70000022,
 837   // Pixie information (???).
 838   DT_MIPS_PIXIE_INIT = 0x70000023,
 839   // Address of .MIPS.symlib
 840   DT_MIPS_SYMBOL_LIB = 0x70000024,
 841   // The GOT index of the first PTE for a segment
 842   DT_MIPS_LOCALPAGE_GOTIDX = 0x70000025,
 843   // The GOT index of the first PTE for a local symbol
 844   DT_MIPS_LOCAL_GOTIDX = 0x70000026,
 845   // The GOT index of the first PTE for a hidden symbol
 846   DT_MIPS_HIDDEN_GOTIDX = 0x70000027,
 847   // The GOT index of the first PTE for a protected symbol
 848   DT_MIPS_PROTECTED_GOTIDX = 0x70000028,
 849   // Address of `.MIPS.options'.
 850   DT_MIPS_OPTIONS = 0x70000029,
 851   // Address of `.interface'.
 852   DT_MIPS_INTERFACE = 0x7000002a,
 853   // ???
 854   DT_MIPS_DYNSTR_ALIGN = 0x7000002b,
 855   // Size of the .interface section.
 856   DT_MIPS_INTERFACE_SIZE = 0x7000002c,
 857   // Size of rld_text_resolve function stored in the GOT.
 858   DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002d,
 859   // Default suffix of DSO to be added by rld on dlopen() calls.
 860   DT_MIPS_PERF_SUFFIX = 0x7000002e,
 861   // Size of compact relocation section (O32).
 862   DT_MIPS_COMPACT_SIZE = 0x7000002f,
 863   // GP value for auxiliary GOTs.
 864   DT_MIPS_GP_VALUE = 0x70000030,
 865   // Address of auxiliary .dynamic.
 866   DT_MIPS_AUX_DYNAMIC = 0x70000031,
 867   // Address of the base of the PLTGOT.
 868   DT_MIPS_PLTGOT = 0x70000032,
 869   // Points to the base of a writable PLT.
 870   DT_MIPS_RWPLT = 0x70000034,
 871   // Relative offset of run time loader map, used for debugging.
 872   DT_MIPS_RLD_MAP_REL = 0x70000035,
 873
 874   DT_AUXILIARY = 0x7ffffffd,
 875   DT_USED = 0x7ffffffe,
 876   DT_FILTER = 0x7fffffff
 877 };
 878
 879 // Flags found in the DT_FLAGS dynamic element.
 880
 881 enum DF
 882 {
 883   DF_ORIGIN = 0x1,
 884   DF_SYMBOLIC = 0x2,
 885   DF_TEXTREL = 0x4,
 886   DF_BIND_NOW = 0x8,
 887   DF_STATIC_TLS = 0x10
 888 };
 889
 890 // Flags found in the DT_FLAGS_1 dynamic element.
 891
 892 enum DF_1
 893 {
 894   DF_1_NOW = 0x1,
 895   DF_1_GLOBAL = 0x2,
 896   DF_1_GROUP = 0x4,
 897   DF_1_NODELETE = 0x8,
 898   DF_1_LOADFLTR = 0x10,
 899   DF_1_INITFIRST = 0x20,
 900   DF_1_NOOPEN = 0x40,
 901   DF_1_ORIGIN = 0x80,
 902   DF_1_DIRECT = 0x100,
 903   DF_1_TRANS = 0x200,
 904   DF_1_INTERPOSE = 0x400,
 905   DF_1_NODEFLIB = 0x800,
 906   DF_1_NODUMP = 0x1000,
 907   DF_1_CONLFAT = 0x2000
 908 };
 909
 910 // Version numbers which appear in the vd_version field of a Verdef
 911 // structure.
 912
 913 const int VER_DEF_NONE = 0;
 914 const int VER_DEF_CURRENT = 1;
 915
 916 // Version numbers which appear in the vn_version field of a Verneed
 917 // structure.
 918
 919 const int VER_NEED_NONE = 0;
 920 const int VER_NEED_CURRENT = 1;
 921
 922 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 923 // Vernaux.
 924
 925 const int VER_FLG_BASE = 0x1;
 926 const int VER_FLG_WEAK = 0x2;
 927 const int VER_FLG_INFO = 0x4;
 928
 929 // Special constants found in the SHT_GNU_versym entries.
 930
 931 const int VER_NDX_LOCAL = 0;
 932 const int VER_NDX_GLOBAL = 1;
 933
 934 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 935 // the symbol is hidden and can only be seen when referenced using an
 936 // explicit version number.  This is a GNU extension.
 937
 938 const int VERSYM_HIDDEN = 0x8000;
 939
 940 // This is the mask for the rest of the data in a word read from a
 941 // SHT_GNU_versym section.
 942
 943 const int VERSYM_VERSION = 0x7fff;
 944
 945 // Note descriptor type codes for notes in a non-core file with an
 946 // empty name.
 947
 948 enum
 949 {
 950   // A version string.
 951   NT_VERSION = 1,
 952   // An architecture string.
 953   NT_ARCH = 2
 954 };
 955
 956 // Note descriptor type codes for notes in a non-core file with the
 957 // name "GNU".
 958
 959 enum
 960 {
 961   // The minimum ABI level.  This is used by the dynamic linker to
 962   // describe the minimal kernel version on which a shared library may
 963   // be used.  Th value should be four words.  Word 0 is an OS
 964   // descriptor (see below).  Word 1 is the major version of the ABI.
 965   // Word 2 is the minor version.  Word 3 is the subminor version.
 966   NT_GNU_ABI_TAG = 1,
 967   // Hardware capabilities information.  Word 0 is the number of
 968   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 969   // the descriptor is a series of entries, where each entry is a
 970   // single byte followed by a nul terminated string.  The byte gives
 971   // the bit number to test if enabled in the bitmask.
 972   NT_GNU_HWCAP = 2,
 973   // The build ID as set by the linker's --build-id option.  The
 974   // format of the descriptor depends on the build ID style.
 975   NT_GNU_BUILD_ID = 3,
 976   // The version of gold used to link.  Th descriptor is just a
 977   // string.
 978   NT_GNU_GOLD_VERSION = 4
 979 };
 980
 981 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 982
 983 enum
 984 {
 985   ELF_NOTE_OS_LINUX = 0,
 986   ELF_NOTE_OS_GNU = 1,
 987   ELF_NOTE_OS_SOLARIS2 = 2,
 988   ELF_NOTE_OS_FREEBSD = 3,
 989   ELF_NOTE_OS_NETBSD = 4,
 990   ELF_NOTE_OS_SYLLABLE = 5
 991 };
 992
 993 } // End namespace elfcpp.
 994
 995 // Include internal details after defining the types.
 996 #include "elfcpp_internal.h"
 997
 998 namespace elfcpp
 999 {
1000
1001 // The offset of the ELF file header in the ELF file.
1002
1003 const int file_header_offset = 0;
1004
1005 // ELF structure sizes.
1006
1007 template<int size>
1008 struct Elf_sizes
1009 {
1010   // Size of ELF file header.
1011   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
1012   // Size of ELF segment header.
1013   static const int phdr_size = sizeof(internal::Phdr_data<size>);
1014   // Size of ELF section header.
1015   static const int shdr_size = sizeof(internal::Shdr_data<size>);
1016   // Size of ELF compression header.
1017   static const int chdr_size = sizeof(internal::Chdr_data<size>);
1018   // Size of ELF symbol table entry.
1019   static const int sym_size = sizeof(internal::Sym_data<size>);
1020   // Sizes of ELF reloc entries.
1021   static const int rel_size = sizeof(internal::Rel_data<size>);
1022   static const int rela_size = sizeof(internal::Rela_data<size>);
1023   // Size of ELF dynamic entry.
1024   static const int dyn_size = sizeof(internal::Dyn_data<size>);
1025   // Size of ELF version structures.
1026   static const int verdef_size = sizeof(internal::Verdef_data);
1027   static const int verdaux_size = sizeof(internal::Verdaux_data);
1028   static const int verneed_size = sizeof(internal::Verneed_data);
1029   static const int vernaux_size = sizeof(internal::Vernaux_data);
1030 };
1031
1032 // Accessor class for the ELF file header.
1033
1034 template<int size, bool big_endian>
1035 class Ehdr
1036 {
1037  public:
1038   Ehdr(const unsigned char* p)
1039     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
1040   { }
1041
1042   template<typename File>
1043   Ehdr(File* file, typename File::Location loc)
1044     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
1045            file->view(loc.file_offset, loc.data_size).data()))
1046   { }
1047
1048   const unsigned char*
1049   get_e_ident() const
1050   { return this->p_->e_ident; }
1051
1052   Elf_Half
1053   get_e_type() const
1054   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
1055
1056   Elf_Half
1057   get_e_machine() const
1058   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
1059
1060   Elf_Word
1061   get_e_version() const
1062   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
1063
1064   typename Elf_types<size>::Elf_Addr
1065   get_e_entry() const
1066   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
1067
1068   typename Elf_types<size>::Elf_Off
1069   get_e_phoff() const
1070   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
1071
1072   typename Elf_types<size>::Elf_Off
1073   get_e_shoff() const
1074   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
1075
1076   Elf_Word
1077   get_e_flags() const
1078   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
1079
1080   Elf_Half
1081   get_e_ehsize() const
1082   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
1083
1084   Elf_Half
1085   get_e_phentsize() const
1086   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
1087
1088   Elf_Half
1089   get_e_phnum() const
1090   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
1091
1092   Elf_Half
1093   get_e_shentsize() const
1094   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
1095
1096   Elf_Half
1097   get_e_shnum() const
1098   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
1099
1100   Elf_Half
1101   get_e_shstrndx() const
1102   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
1103
1104  private:
1105   const internal::Ehdr_data<size>* p_;
1106 };
1107
1108 // Write class for the ELF file header.
1109
1110 template<int size, bool big_endian>
1111 class Ehdr_write
1112 {
1113  public:
1114   Ehdr_write(unsigned char* p)
1115     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
1116   { }
1117
1118   void
1119   put_e_ident(const unsigned char v[EI_NIDENT]) const
1120   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
1121
1122   void
1123   put_e_type(Elf_Half v)
1124   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
1125
1126   void
1127   put_e_machine(Elf_Half v)
1128   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
1129
1130   void
1131   put_e_version(Elf_Word v)
1132   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
1133
1134   void
1135   put_e_entry(typename Elf_types<size>::Elf_Addr v)
1136   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
1137
1138   void
1139   put_e_phoff(typename Elf_types<size>::Elf_Off v)
1140   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
1141
1142   void
1143   put_e_shoff(typename Elf_types<size>::Elf_Off v)
1144   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
1145
1146   void
1147   put_e_flags(Elf_Word v)
1148   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
1149
1150   void
1151   put_e_ehsize(Elf_Half v)
1152   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
1153
1154   void
1155   put_e_phentsize(Elf_Half v)
1156   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
1157
1158   void
1159   put_e_phnum(Elf_Half v)
1160   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
1161
1162   void
1163   put_e_shentsize(Elf_Half v)
1164   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
1165
1166   void
1167   put_e_shnum(Elf_Half v)
1168   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
1169
1170   void
1171   put_e_shstrndx(Elf_Half v)
1172   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
1173
1174  private:
1175   internal::Ehdr_data<size>* p_;
1176 };
1177
1178 // Accessor class for an ELF section header.
1179
1180 template<int size, bool big_endian>
1181 class Shdr
1182 {
1183  public:
1184   Shdr(const unsigned char* p)
1185     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
1186   { }
1187
1188   template<typename File>
1189   Shdr(File* file, typename File::Location loc)
1190     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1191            file->view(loc.file_offset, loc.data_size).data()))
1192   { }
1193
1194   Elf_Word
1195   get_sh_name() const
1196   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1197
1198   Elf_Word
1199   get_sh_type() const
1200   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1201
1202   typename Elf_types<size>::Elf_WXword
1203   get_sh_flags() const
1204   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1205
1206   typename Elf_types<size>::Elf_Addr
1207   get_sh_addr() const
1208   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1209
1210   typename Elf_types<size>::Elf_Off
1211   get_sh_offset() const
1212   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1213
1214   typename Elf_types<size>::Elf_WXword
1215   get_sh_size() const
1216   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1217
1218   Elf_Word
1219   get_sh_link() const
1220   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1221
1222   Elf_Word
1223   get_sh_info() const
1224   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1225
1226   typename Elf_types<size>::Elf_WXword
1227   get_sh_addralign() const
1228   { return
1229       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1230
1231   typename Elf_types<size>::Elf_WXword
1232   get_sh_entsize() const
1233   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1234
1235  private:
1236   const internal::Shdr_data<size>* p_;
1237 };
1238
1239 // Write class for an ELF section header.
1240
1241 template<int size, bool big_endian>
1242 class Shdr_write
1243 {
1244  public:
1245   Shdr_write(unsigned char* p)
1246     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1247   { }
1248
1249   void
1250   put_sh_name(Elf_Word v)
1251   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1252
1253   void
1254   put_sh_type(Elf_Word v)
1255   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1256
1257   void
1258   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1259   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1260
1261   void
1262   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1263   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1264
1265   void
1266   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1267   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1268
1269   void
1270   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1271   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1272
1273   void
1274   put_sh_link(Elf_Word v)
1275   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1276
1277   void
1278   put_sh_info(Elf_Word v)
1279   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1280
1281   void
1282   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1283   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1284
1285   void
1286   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1287   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1288
1289  private:
1290   internal::Shdr_data<size>* p_;
1291 };
1292
1293 // Accessor class for an ELF compression header.
1294
1295 template<int size, bool big_endian>
1296 class Chdr
1297 {
1298  public:
1299   Chdr(const unsigned char* p)
1300     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(p))
1301   { }
1302
1303   template<typename File>
1304   Chdr(File* file, typename File::Location loc)
1305     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(
1306            file->view(loc.file_offset, loc.data_size).data()))
1307   { }
1308
1309   Elf_Word
1310   get_ch_type() const
1311   { return Convert<size, big_endian>::convert_host(this->p_->ch_type); }
1312
1313   typename Elf_types<size>::Elf_WXword
1314   get_ch_size() const
1315   { return Convert<size, big_endian>::convert_host(this->p_->ch_size); }
1316
1317   typename Elf_types<size>::Elf_WXword
1318   get_ch_addralign() const
1319   { return
1320       Convert<size, big_endian>::convert_host(this->p_->ch_addralign); }
1321
1322  private:
1323   const internal::Chdr_data<size>* p_;
1324 };
1325
1326 // Write class for an ELF compression header.
1327
1328 template<int size, bool big_endian>
1329 class Chdr_write
1330 {
1331  public:
1332   Chdr_write(unsigned char* p)
1333     : p_(reinterpret_cast<internal::Chdr_data<size>*>(p))
1334   { }
1335
1336   void
1337   put_ch_type(typename Elf_types<size>::Elf_WXword v)
1338   { this->p_->ch_type = Convert<size, big_endian>::convert_host(v); }
1339
1340   void
1341   put_ch_size(typename Elf_types<size>::Elf_WXword v)
1342   { this->p_->ch_size = Convert<size, big_endian>::convert_host(v); }
1343
1344   void
1345   put_ch_addralign(typename Elf_types<size>::Elf_WXword v)
1346   { this->p_->ch_addralign = Convert<size, big_endian>::convert_host(v); }
1347
1348  private:
1349   internal::Chdr_data<size>* p_;
1350 };
1351
1352 // Accessor class for an ELF segment header.
1353
1354 template<int size, bool big_endian>
1355 class Phdr
1356 {
1357  public:
1358   Phdr(const unsigned char* p)
1359     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1360   { }
1361
1362   template<typename File>
1363   Phdr(File* file, typename File::Location loc)
1364     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1365            file->view(loc.file_offset, loc.data_size).data()))
1366   { }
1367
1368   Elf_Word
1369   get_p_type() const
1370   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1371
1372   typename Elf_types<size>::Elf_Off
1373   get_p_offset() const
1374   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1375
1376   typename Elf_types<size>::Elf_Addr
1377   get_p_vaddr() const
1378   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1379
1380   typename Elf_types<size>::Elf_Addr
1381   get_p_paddr() const
1382   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1383
1384   typename Elf_types<size>::Elf_WXword
1385   get_p_filesz() const
1386   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1387
1388   typename Elf_types<size>::Elf_WXword
1389   get_p_memsz() const
1390   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1391
1392   Elf_Word
1393   get_p_flags() const
1394   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1395
1396   typename Elf_types<size>::Elf_WXword
1397   get_p_align() const
1398   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1399
1400  private:
1401   const internal::Phdr_data<size>* p_;
1402 };
1403
1404 // Write class for an ELF segment header.
1405
1406 template<int size, bool big_endian>
1407 class Phdr_write
1408 {
1409  public:
1410   Phdr_write(unsigned char* p)
1411     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1412   { }
1413
1414   void
1415   put_p_type(Elf_Word v)
1416   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1417
1418   void
1419   put_p_offset(typename Elf_types<size>::Elf_Off v)
1420   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1421
1422   void
1423   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1424   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1425
1426   void
1427   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1428   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1429
1430   void
1431   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1432   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1433
1434   void
1435   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1436   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1437
1438   void
1439   put_p_flags(Elf_Word v)
1440   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1441
1442   void
1443   put_p_align(typename Elf_types<size>::Elf_WXword v)
1444   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1445
1446  private:
1447   internal::Phdr_data<size>* p_;
1448 };
1449
1450 // Accessor class for an ELF symbol table entry.
1451
1452 template<int size, bool big_endian>
1453 class Sym
1454 {
1455  public:
1456   Sym(const unsigned char* p)
1457     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1458   { }
1459
1460   template<typename File>
1461   Sym(File* file, typename File::Location loc)
1462     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1463            file->view(loc.file_offset, loc.data_size).data()))
1464   { }
1465
1466   Elf_Word
1467   get_st_name() const
1468   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1469
1470   typename Elf_types<size>::Elf_Addr
1471   get_st_value() const
1472   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1473
1474   typename Elf_types<size>::Elf_WXword
1475   get_st_size() const
1476   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1477
1478   unsigned char
1479   get_st_info() const
1480   { return this->p_->st_info; }
1481
1482   STB
1483   get_st_bind() const
1484   { return elf_st_bind(this->get_st_info()); }
1485
1486   STT
1487   get_st_type() const
1488   { return elf_st_type(this->get_st_info()); }
1489
1490   unsigned char
1491   get_st_other() const
1492   { return this->p_->st_other; }
1493
1494   STV
1495   get_st_visibility() const
1496   { return elf_st_visibility(this->get_st_other()); }
1497
1498   unsigned char
1499   get_st_nonvis() const
1500   { return elf_st_nonvis(this->get_st_other()); }
1501
1502   Elf_Half
1503   get_st_shndx() const
1504   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1505
1506  private:
1507   const internal::Sym_data<size>* p_;
1508 };
1509
1510 // Writer class for an ELF symbol table entry.
1511
1512 template<int size, bool big_endian>
1513 class Sym_write
1514 {
1515  public:
1516   Sym_write(unsigned char* p)
1517     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1518   { }
1519
1520   void
1521   put_st_name(Elf_Word v)
1522   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1523
1524   void
1525   put_st_value(typename Elf_types<size>::Elf_Addr v)
1526   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1527
1528   void
1529   put_st_size(typename Elf_types<size>::Elf_WXword v)
1530   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1531
1532   void
1533   put_st_info(unsigned char v)
1534   { this->p_->st_info = v; }
1535
1536   void
1537   put_st_info(STB bind, STT type)
1538   { this->p_->st_info = elf_st_info(bind, type); }
1539
1540   void
1541   put_st_other(unsigned char v)
1542   { this->p_->st_other = v; }
1543
1544   void
1545   put_st_other(STV vis, unsigned char nonvis)
1546   { this->p_->st_other = elf_st_other(vis, nonvis); }
1547
1548   void
1549   put_st_shndx(Elf_Half v)
1550   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1551
1552   Sym<size, big_endian>
1553   sym()
1554   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1555
1556  private:
1557   internal::Sym_data<size>* p_;
1558 };
1559
1560 // Accessor classes for an ELF REL relocation entry.
1561
1562 template<int size, bool big_endian>
1563 class Rel
1564 {
1565  public:
1566   Rel(const unsigned char* p)
1567     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1568   { }
1569
1570   template<typename File>
1571   Rel(File* file, typename File::Location loc)
1572     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1573            file->view(loc.file_offset, loc.data_size).data()))
1574   { }
1575
1576   typename Elf_types<size>::Elf_Addr
1577   get_r_offset() const
1578   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1579
1580   typename Elf_types<size>::Elf_WXword
1581   get_r_info() const
1582   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1583
1584  private:
1585   const internal::Rel_data<size>* p_;
1586 };
1587
1588 // Writer class for an ELF Rel relocation.
1589
1590 template<int size, bool big_endian>
1591 class Rel_write
1592 {
1593  public:
1594   Rel_write(unsigned char* p)
1595     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1596   { }
1597
1598   void
1599   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1600   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1601
1602   void
1603   put_r_info(typename Elf_types<size>::Elf_WXword v)
1604   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1605
1606  private:
1607   internal::Rel_data<size>* p_;
1608 };
1609
1610 // Accessor class for an ELF Rela relocation.
1611
1612 template<int size, bool big_endian>
1613 class Rela
1614 {
1615  public:
1616   Rela(const unsigned char* p)
1617     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1618   { }
1619
1620   template<typename File>
1621   Rela(File* file, typename File::Location loc)
1622     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1623            file->view(loc.file_offset, loc.data_size).data()))
1624   { }
1625
1626   typename Elf_types<size>::Elf_Addr
1627   get_r_offset() const
1628   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1629
1630   typename Elf_types<size>::Elf_WXword
1631   get_r_info() const
1632   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1633
1634   typename Elf_types<size>::Elf_Swxword
1635   get_r_addend() const
1636   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1637
1638  private:
1639   const internal::Rela_data<size>* p_;
1640 };
1641
1642 // Writer class for an ELF Rela relocation.
1643
1644 template<int size, bool big_endian>
1645 class Rela_write
1646 {
1647  public:
1648   Rela_write(unsigned char* p)
1649     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1650   { }
1651
1652   void
1653   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1654   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1655
1656   void
1657   put_r_info(typename Elf_types<size>::Elf_WXword v)
1658   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1659
1660   void
1661   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1662   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1663
1664  private:
1665   internal::Rela_data<size>* p_;
1666 };
1667
1668 // MIPS-64 has a non-standard relocation layout.
1669
1670 template<bool big_endian>
1671 class Mips64_rel
1672 {
1673  public:
1674   Mips64_rel(const unsigned char* p)
1675     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(p))
1676   { }
1677
1678   template<typename File>
1679   Mips64_rel(File* file, typename File::Location loc)
1680     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(
1681            file->view(loc.file_offset, loc.data_size).data()))
1682   { }
1683
1684   typename Elf_types<64>::Elf_Addr
1685   get_r_offset() const
1686   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1687
1688   Elf_Word
1689   get_r_sym() const
1690   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1691
1692   unsigned char
1693   get_r_ssym() const
1694   { return this->p_->r_ssym; }
1695
1696   unsigned char
1697   get_r_type() const
1698   { return this->p_->r_type; }
1699
1700   unsigned char
1701   get_r_type2() const
1702   { return this->p_->r_type2; }
1703
1704   unsigned char
1705   get_r_type3() const
1706   { return this->p_->r_type3; }
1707
1708  private:
1709   const internal::Mips64_rel_data* p_;
1710 };
1711
1712 template<bool big_endian>
1713 class Mips64_rel_write
1714 {
1715  public:
1716   Mips64_rel_write(unsigned char* p)
1717     : p_(reinterpret_cast<internal::Mips64_rel_data*>(p))
1718   { }
1719
1720   void
1721   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1722   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1723
1724   void
1725   put_r_sym(Elf_Word v)
1726   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1727
1728   void
1729   put_r_ssym(unsigned char v)
1730   { this->p_->r_ssym = v; }
1731
1732   void
1733   put_r_type(unsigned char v)
1734   { this->p_->r_type = v; }
1735
1736   void
1737   put_r_type2(unsigned char v)
1738   { this->p_->r_type2 = v; }
1739
1740   void
1741   put_r_type3(unsigned char v)
1742   { this->p_->r_type3 = v; }
1743
1744  private:
1745   internal::Mips64_rel_data* p_;
1746 };
1747
1748 template<bool big_endian>
1749 class Mips64_rela
1750 {
1751  public:
1752   Mips64_rela(const unsigned char* p)
1753     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(p))
1754   { }
1755
1756   template<typename File>
1757   Mips64_rela(File* file, typename File::Location loc)
1758     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(
1759            file->view(loc.file_offset, loc.data_size).data()))
1760   { }
1761
1762   typename Elf_types<64>::Elf_Addr
1763   get_r_offset() const
1764   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1765
1766   Elf_Word
1767   get_r_sym() const
1768   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1769
1770   unsigned char
1771   get_r_ssym() const
1772   { return this->p_->r_ssym; }
1773
1774   unsigned char
1775   get_r_type() const
1776   { return this->p_->r_type; }
1777
1778   unsigned char
1779   get_r_type2() const
1780   { return this->p_->r_type2; }
1781
1782   unsigned char
1783   get_r_type3() const
1784   { return this->p_->r_type3; }
1785
1786   typename Elf_types<64>::Elf_Swxword
1787   get_r_addend() const
1788   { return Convert<64, big_endian>::convert_host(this->p_->r_addend); }
1789
1790  private:
1791   const internal::Mips64_rela_data* p_;
1792 };
1793
1794 template<bool big_endian>
1795 class Mips64_rela_write
1796 {
1797  public:
1798   Mips64_rela_write(unsigned char* p)
1799     : p_(reinterpret_cast<internal::Mips64_rela_data*>(p))
1800   { }
1801
1802   void
1803   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1804   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1805
1806   void
1807   put_r_sym(Elf_Word v)
1808   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1809
1810   void
1811   put_r_ssym(unsigned char v)
1812   { this->p_->r_ssym = v; }
1813
1814   void
1815   put_r_type(unsigned char v)
1816   { this->p_->r_type = v; }
1817
1818   void
1819   put_r_type2(unsigned char v)
1820   { this->p_->r_type2 = v; }
1821
1822   void
1823   put_r_type3(unsigned char v)
1824   { this->p_->r_type3 = v; }
1825
1826   void
1827   put_r_addend(typename Elf_types<64>::Elf_Swxword v)
1828   { this->p_->r_addend = Convert<64, big_endian>::convert_host(v); }
1829
1830  private:
1831   internal::Mips64_rela_data* p_;
1832 };
1833
1834 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1835 // PT_DYNAMIC segment.
1836
1837 template<int size, bool big_endian>
1838 class Dyn
1839 {
1840  public:
1841   Dyn(const unsigned char* p)
1842     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1843   { }
1844
1845   template<typename File>
1846   Dyn(File* file, typename File::Location loc)
1847     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1848            file->view(loc.file_offset, loc.data_size).data()))
1849   { }
1850
1851   typename Elf_types<size>::Elf_Swxword
1852   get_d_tag() const
1853   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1854
1855   typename Elf_types<size>::Elf_WXword
1856   get_d_val() const
1857   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1858
1859   typename Elf_types<size>::Elf_Addr
1860   get_d_ptr() const
1861   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1862
1863  private:
1864   const internal::Dyn_data<size>* p_;
1865 };
1866
1867 // Write class for an entry in the SHT_DYNAMIC section.
1868
1869 template<int size, bool big_endian>
1870 class Dyn_write
1871 {
1872  public:
1873   Dyn_write(unsigned char* p)
1874     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1875   { }
1876
1877   void
1878   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1879   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1880
1881   void
1882   put_d_val(typename Elf_types<size>::Elf_WXword v)
1883   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1884
1885   void
1886   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1887   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1888
1889  private:
1890   internal::Dyn_data<size>* p_;
1891 };
1892
1893 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1894
1895 template<int size, bool big_endian>
1896 class Verdef
1897 {
1898  public:
1899   Verdef(const unsigned char* p)
1900     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1901   { }
1902
1903   template<typename File>
1904   Verdef(File* file, typename File::Location loc)
1905     : p_(reinterpret_cast<const internal::Verdef_data*>(
1906            file->view(loc.file_offset, loc.data_size).data()))
1907   { }
1908
1909   Elf_Half
1910   get_vd_version() const
1911   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1912
1913   Elf_Half
1914   get_vd_flags() const
1915   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1916
1917   Elf_Half
1918   get_vd_ndx() const
1919   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1920
1921   Elf_Half
1922   get_vd_cnt() const
1923   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1924
1925   Elf_Word
1926   get_vd_hash() const
1927   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1928
1929   Elf_Word
1930   get_vd_aux() const
1931   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1932
1933   Elf_Word
1934   get_vd_next() const
1935   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1936
1937  private:
1938   const internal::Verdef_data* p_;
1939 };
1940
1941 template<int size, bool big_endian>
1942 class Verdef_write
1943 {
1944  public:
1945   Verdef_write(unsigned char* p)
1946     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1947   { }
1948
1949   void
1950   set_vd_version(Elf_Half v)
1951   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1952
1953   void
1954   set_vd_flags(Elf_Half v)
1955   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1956
1957   void
1958   set_vd_ndx(Elf_Half v)
1959   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1960
1961   void
1962   set_vd_cnt(Elf_Half v)
1963   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1964
1965   void
1966   set_vd_hash(Elf_Word v)
1967   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1968
1969   void
1970   set_vd_aux(Elf_Word v)
1971   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1972
1973   void
1974   set_vd_next(Elf_Word v)
1975   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1976
1977  private:
1978   internal::Verdef_data* p_;
1979 };
1980
1981 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1982 // section.
1983
1984 template<int size, bool big_endian>
1985 class Verdaux
1986 {
1987  public:
1988   Verdaux(const unsigned char* p)
1989     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1990   { }
1991
1992   template<typename File>
1993   Verdaux(File* file, typename File::Location loc)
1994     : p_(reinterpret_cast<const internal::Verdaux_data*>(
1995            file->view(loc.file_offset, loc.data_size).data()))
1996   { }
1997
1998   Elf_Word
1999   get_vda_name() const
2000   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
2001
2002   Elf_Word
2003   get_vda_next() const
2004   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
2005
2006  private:
2007   const internal::Verdaux_data* p_;
2008 };
2009
2010 template<int size, bool big_endian>
2011 class Verdaux_write
2012 {
2013  public:
2014   Verdaux_write(unsigned char* p)
2015     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
2016   { }
2017
2018   void
2019   set_vda_name(Elf_Word v)
2020   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
2021
2022   void
2023   set_vda_next(Elf_Word v)
2024   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
2025
2026  private:
2027   internal::Verdaux_data* p_;
2028 };
2029
2030 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
2031
2032 template<int size, bool big_endian>
2033 class Verneed
2034 {
2035  public:
2036   Verneed(const unsigned char* p)
2037     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
2038   { }
2039
2040   template<typename File>
2041   Verneed(File* file, typename File::Location loc)
2042     : p_(reinterpret_cast<const internal::Verneed_data*>(
2043            file->view(loc.file_offset, loc.data_size).data()))
2044   { }
2045
2046   Elf_Half
2047   get_vn_version() const
2048   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
2049
2050   Elf_Half
2051   get_vn_cnt() const
2052   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
2053
2054   Elf_Word
2055   get_vn_file() const
2056   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
2057
2058   Elf_Word
2059   get_vn_aux() const
2060   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
2061
2062   Elf_Word
2063   get_vn_next() const
2064   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
2065
2066  private:
2067   const internal::Verneed_data* p_;
2068 };
2069
2070 template<int size, bool big_endian>
2071 class Verneed_write
2072 {
2073  public:
2074   Verneed_write(unsigned char* p)
2075     : p_(reinterpret_cast<internal::Verneed_data*>(p))
2076   { }
2077
2078   void
2079   set_vn_version(Elf_Half v)
2080   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
2081
2082   void
2083   set_vn_cnt(Elf_Half v)
2084   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
2085
2086   void
2087   set_vn_file(Elf_Word v)
2088   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
2089
2090   void
2091   set_vn_aux(Elf_Word v)
2092   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
2093
2094   void
2095   set_vn_next(Elf_Word v)
2096   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
2097
2098  private:
2099   internal::Verneed_data* p_;
2100 };
2101
2102 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
2103 // section.
2104
2105 template<int size, bool big_endian>
2106 class Vernaux
2107 {
2108  public:
2109   Vernaux(const unsigned char* p)
2110     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
2111   { }
2112
2113   template<typename File>
2114   Vernaux(File* file, typename File::Location loc)
2115     : p_(reinterpret_cast<const internal::Vernaux_data*>(
2116            file->view(loc.file_offset, loc.data_size).data()))
2117   { }
2118
2119   Elf_Word
2120   get_vna_hash() const
2121   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
2122
2123   Elf_Half
2124   get_vna_flags() const
2125   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
2126
2127   Elf_Half
2128   get_vna_other() const
2129   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
2130
2131   Elf_Word
2132   get_vna_name() const
2133   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
2134
2135   Elf_Word
2136   get_vna_next() const
2137   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
2138
2139  private:
2140   const internal::Vernaux_data* p_;
2141 };
2142
2143 template<int size, bool big_endian>
2144 class Vernaux_write
2145 {
2146  public:
2147   Vernaux_write(unsigned char* p)
2148     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
2149   { }
2150
2151   void
2152   set_vna_hash(Elf_Word v)
2153   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
2154
2155   void
2156   set_vna_flags(Elf_Half v)
2157   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
2158
2159   void
2160   set_vna_other(Elf_Half v)
2161   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
2162
2163   void
2164   set_vna_name(Elf_Word v)
2165   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
2166
2167   void
2168   set_vna_next(Elf_Word v)
2169   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
2170
2171  private:
2172   internal::Vernaux_data* p_;
2173 };
2174
2175 } // End namespace elfcpp.
2176
2177 #endif // !defined(ELFPCP_H)