elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright (C) 2006-2014 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   // 6 used to be EM_486
 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
 410   // AARCH64-specific section type.
 411   SHT_AARCH64_ATTRIBUTES = 0x70000003,
 412
 413   // Link editor is to sort the entries in this section based on the
 414   // address specified in the associated symbol table entry.
 415   SHT_ORDERED = 0x7fffffff
 416 };
 417
 418 // The valid bit flags found in the Shdr sh_flags field.
 419
 420 enum SHF
 421 {
 422   SHF_WRITE = 0x1,
 423   SHF_ALLOC = 0x2,
 424   SHF_EXECINSTR = 0x4,
 425   SHF_MERGE = 0x10,
 426   SHF_STRINGS = 0x20,
 427   SHF_INFO_LINK = 0x40,
 428   SHF_LINK_ORDER = 0x80,
 429   SHF_OS_NONCONFORMING = 0x100,
 430   SHF_GROUP = 0x200,
 431   SHF_TLS = 0x400,
 432   SHF_MASKOS = 0x0ff00000,
 433   SHF_MASKPROC = 0xf0000000,
 434
 435   // Indicates this section requires ordering in relation to
 436   // other sections of the same type.  Ordered sections are
 437   // combined within the section pointed to by the sh_link entry.
 438   // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
 439   // sorted section is to precede or follow, respectively, all
 440   // other sections in the set being ordered.
 441   SHF_ORDERED = 0x40000000,
 442   // This section is excluded from input to the link-edit of an
 443   // executable or shared object.  This flag is ignored if SHF_ALLOC
 444   // is also set, or if relocations exist against the section.
 445   SHF_EXCLUDE = 0x80000000,
 446
 447   // Section with data that is GP relative addressable.
 448   SHF_MIPS_GPREL = 0x10000000,
 449
 450   // x86_64 specific large section.
 451   SHF_X86_64_LARGE = 0x10000000
 452 };
 453
 454 // Bit flags which appear in the first 32-bit word of the section data
 455 // of a SHT_GROUP section.
 456
 457 enum
 458 {
 459   GRP_COMDAT = 0x1,
 460   GRP_MASKOS = 0x0ff00000,
 461   GRP_MASKPROC = 0xf0000000
 462 };
 463
 464 // The valid values found in the Phdr p_type field.
 465
 466 enum PT
 467 {
 468   PT_NULL = 0,
 469   PT_LOAD = 1,
 470   PT_DYNAMIC = 2,
 471   PT_INTERP = 3,
 472   PT_NOTE = 4,
 473   PT_SHLIB = 5,
 474   PT_PHDR = 6,
 475   PT_TLS = 7,
 476   PT_LOOS = 0x60000000,
 477   PT_HIOS = 0x6fffffff,
 478   PT_LOPROC = 0x70000000,
 479   PT_HIPROC = 0x7fffffff,
 480   // The remaining values are not in the standard.
 481   // Frame unwind information.
 482   PT_GNU_EH_FRAME = 0x6474e550,
 483   PT_SUNW_EH_FRAME = 0x6474e550,
 484   // Stack flags.
 485   PT_GNU_STACK = 0x6474e551,
 486   // Read only after relocation.
 487   PT_GNU_RELRO = 0x6474e552,
 488   // Platform architecture compatibility information
 489   PT_ARM_ARCHEXT = 0x70000000,
 490   // Exception unwind tables
 491   PT_ARM_EXIDX = 0x70000001,
 492   // Register usage information.  Identifies one .reginfo section.
 493   PT_MIPS_REGINFO =0x70000000,
 494   // Runtime procedure table.
 495   PT_MIPS_RTPROC = 0x70000001,
 496   // .MIPS.options section.
 497   PT_MIPS_OPTIONS = 0x70000002,
 498   // Platform architecture compatibility information
 499   PT_AARCH64_ARCHEXT = 0x70000000,
 500   // Exception unwind tables
 501   PT_AARCH64_UNWIND = 0x70000001
 502 };
 503
 504 // The valid bit flags found in the Phdr p_flags field.
 505
 506 enum PF
 507 {
 508   PF_X = 0x1,
 509   PF_W = 0x2,
 510   PF_R = 0x4,
 511   PF_MASKOS = 0x0ff00000,
 512   PF_MASKPROC = 0xf0000000
 513 };
 514
 515 // Symbol binding from Sym st_info field.
 516
 517 enum STB
 518 {
 519   STB_LOCAL = 0,
 520   STB_GLOBAL = 1,
 521   STB_WEAK = 2,
 522   STB_LOOS = 10,
 523   STB_GNU_UNIQUE = 10,
 524   STB_HIOS = 12,
 525   STB_LOPROC = 13,
 526   STB_HIPROC = 15
 527 };
 528
 529 // Symbol types from Sym st_info field.
 530
 531 enum STT
 532 {
 533   STT_NOTYPE = 0,
 534   STT_OBJECT = 1,
 535   STT_FUNC = 2,
 536   STT_SECTION = 3,
 537   STT_FILE = 4,
 538   STT_COMMON = 5,
 539   STT_TLS = 6,
 540
 541   // GNU extension: symbol value points to a function which is called
 542   // at runtime to determine the final value of the symbol.
 543   STT_GNU_IFUNC = 10,
 544
 545   STT_LOOS = 10,
 546   STT_HIOS = 12,
 547   STT_LOPROC = 13,
 548   STT_HIPROC = 15,
 549
 550   // The section type that must be used for register symbols on
 551   // Sparc.  These symbols initialize a global register.
 552   STT_SPARC_REGISTER = 13,
 553
 554   // ARM: a THUMB function.  This is not defined in ARM ELF Specification but
 555   // used by the GNU tool-chain.
 556   STT_ARM_TFUNC = 13
 557 };
 558
 559 inline STB
 560 elf_st_bind(unsigned char info)
 561 {
 562   return static_cast<STB>(info >> 4);
 563 }
 564
 565 inline STT
 566 elf_st_type(unsigned char info)
 567 {
 568   return static_cast<STT>(info & 0xf);
 569 }
 570
 571 inline unsigned char
 572 elf_st_info(STB bind, STT type)
 573 {
 574   return ((static_cast<unsigned char>(bind) << 4)
 575           + (static_cast<unsigned char>(type) & 0xf));
 576 }
 577
 578 // Symbol visibility from Sym st_other field.
 579
 580 enum STV
 581 {
 582   STV_DEFAULT = 0,
 583   STV_INTERNAL = 1,
 584   STV_HIDDEN = 2,
 585   STV_PROTECTED = 3
 586 };
 587
 588 inline STV
 589 elf_st_visibility(unsigned char other)
 590 {
 591   return static_cast<STV>(other & 0x3);
 592 }
 593
 594 inline unsigned char
 595 elf_st_nonvis(unsigned char other)
 596 {
 597   return static_cast<STV>(other >> 2);
 598 }
 599
 600 inline unsigned char
 601 elf_st_other(STV vis, unsigned char nonvis)
 602 {
 603   return ((nonvis << 2)
 604           + (static_cast<unsigned char>(vis) & 3));
 605 }
 606
 607 // Reloc information from Rel/Rela r_info field.
 608
 609 template<int size>
 610 unsigned int
 611 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 612
 613 template<>
 614 inline unsigned int
 615 elf_r_sym<32>(Elf_Word v)
 616 {
 617   return v >> 8;
 618 }
 619
 620 template<>
 621 inline unsigned int
 622 elf_r_sym<64>(Elf_Xword v)
 623 {
 624   return v >> 32;
 625 }
 626
 627 template<int size>
 628 unsigned int
 629 elf_r_type(typename Elf_types<size>::Elf_WXword);
 630
 631 template<>
 632 inline unsigned int
 633 elf_r_type<32>(Elf_Word v)
 634 {
 635   return v & 0xff;
 636 }
 637
 638 template<>
 639 inline unsigned int
 640 elf_r_type<64>(Elf_Xword v)
 641 {
 642   return v & 0xffffffff;
 643 }
 644
 645 template<int size>
 646 typename Elf_types<size>::Elf_WXword
 647 elf_r_info(unsigned int s, unsigned int t);
 648
 649 template<>
 650 inline Elf_Word
 651 elf_r_info<32>(unsigned int s, unsigned int t)
 652 {
 653   return (s << 8) + (t & 0xff);
 654 }
 655
 656 template<>
 657 inline Elf_Xword
 658 elf_r_info<64>(unsigned int s, unsigned int t)
 659 {
 660   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 661 }
 662
 663 // Dynamic tags found in the PT_DYNAMIC segment.
 664
 665 enum DT
 666 {
 667   DT_NULL = 0,
 668   DT_NEEDED = 1,
 669   DT_PLTRELSZ = 2,
 670   DT_PLTGOT = 3,
 671   DT_HASH = 4,
 672   DT_STRTAB = 5,
 673   DT_SYMTAB = 6,
 674   DT_RELA = 7,
 675   DT_RELASZ = 8,
 676   DT_RELAENT = 9,
 677   DT_STRSZ = 10,
 678   DT_SYMENT = 11,
 679   DT_INIT = 12,
 680   DT_FINI = 13,
 681   DT_SONAME = 14,
 682   DT_RPATH = 15,
 683   DT_SYMBOLIC = 16,
 684   DT_REL = 17,
 685   DT_RELSZ = 18,
 686   DT_RELENT = 19,
 687   DT_PLTREL = 20,
 688   DT_DEBUG = 21,
 689   DT_TEXTREL = 22,
 690   DT_JMPREL = 23,
 691   DT_BIND_NOW = 24,
 692   DT_INIT_ARRAY = 25,
 693   DT_FINI_ARRAY = 26,
 694   DT_INIT_ARRAYSZ = 27,
 695   DT_FINI_ARRAYSZ = 28,
 696   DT_RUNPATH = 29,
 697   DT_FLAGS = 30,
 698
 699   // This is used to mark a range of dynamic tags.  It is not really
 700   // a tag value.
 701   DT_ENCODING = 32,
 702
 703   DT_PREINIT_ARRAY = 32,
 704   DT_PREINIT_ARRAYSZ = 33,
 705   DT_LOOS = 0x6000000d,
 706   DT_HIOS = 0x6ffff000,
 707   DT_LOPROC = 0x70000000,
 708   DT_HIPROC = 0x7fffffff,
 709
 710   // The remaining values are extensions used by GNU or Solaris.
 711   DT_VALRNGLO = 0x6ffffd00,
 712   DT_GNU_PRELINKED = 0x6ffffdf5,
 713   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 714   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 715   DT_CHECKSUM = 0x6ffffdf8,
 716   DT_PLTPADSZ = 0x6ffffdf9,
 717   DT_MOVEENT = 0x6ffffdfa,
 718   DT_MOVESZ = 0x6ffffdfb,
 719   DT_FEATURE = 0x6ffffdfc,
 720   DT_POSFLAG_1 = 0x6ffffdfd,
 721   DT_SYMINSZ = 0x6ffffdfe,
 722   DT_SYMINENT = 0x6ffffdff,
 723   DT_VALRNGHI = 0x6ffffdff,
 724
 725   DT_ADDRRNGLO = 0x6ffffe00,
 726   DT_GNU_HASH = 0x6ffffef5,
 727   DT_TLSDESC_PLT = 0x6ffffef6,
 728   DT_TLSDESC_GOT = 0x6ffffef7,
 729   DT_GNU_CONFLICT = 0x6ffffef8,
 730   DT_GNU_LIBLIST = 0x6ffffef9,
 731   DT_CONFIG = 0x6ffffefa,
 732   DT_DEPAUDIT = 0x6ffffefb,
 733   DT_AUDIT = 0x6ffffefc,
 734   DT_PLTPAD = 0x6ffffefd,
 735   DT_MOVETAB = 0x6ffffefe,
 736   DT_SYMINFO = 0x6ffffeff,
 737   DT_ADDRRNGHI = 0x6ffffeff,
 738
 739   DT_RELACOUNT = 0x6ffffff9,
 740   DT_RELCOUNT = 0x6ffffffa,
 741   DT_FLAGS_1 = 0x6ffffffb,
 742   DT_VERDEF = 0x6ffffffc,
 743   DT_VERDEFNUM = 0x6ffffffd,
 744   DT_VERNEED = 0x6ffffffe,
 745   DT_VERNEEDNUM = 0x6fffffff,
 746
 747   DT_VERSYM = 0x6ffffff0,
 748
 749   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 750   DT_PPC_GOT = 0x70000000,
 751
 752   // Specify the start of the .glink section.
 753   DT_PPC64_GLINK = 0x70000000,
 754
 755   // Specify the start and size of the .opd section.
 756   DT_PPC64_OPD = 0x70000001,
 757   DT_PPC64_OPDSZ = 0x70000002,
 758
 759   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 760   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 761   // symbol in the symbol table.
 762   DT_SPARC_REGISTER = 0x70000001,
 763
 764   // MIPS specific dynamic array tags.
 765   // 32 bit version number for runtime linker interface.
 766   DT_MIPS_RLD_VERSION = 0x70000001,
 767   // Time stamp.
 768   DT_MIPS_TIME_STAMP = 0x70000002,
 769   // Checksum of external strings and common sizes.
 770   DT_MIPS_ICHECKSUM = 0x70000003,
 771   // Index of version string in string table.
 772   DT_MIPS_IVERSION = 0x70000004,
 773   // 32 bits of flags.
 774   DT_MIPS_FLAGS = 0x70000005,
 775   // Base address of the segment.
 776   DT_MIPS_BASE_ADDRESS = 0x70000006,
 777   // ???
 778   DT_MIPS_MSYM = 0x70000007,
 779   // Address of .conflict section.
 780   DT_MIPS_CONFLICT = 0x70000008,
 781   // Address of .liblist section.
 782   DT_MIPS_LIBLIST = 0x70000009,
 783   // Number of local global offset table entries.
 784   DT_MIPS_LOCAL_GOTNO = 0x7000000a,
 785   // Number of entries in the .conflict section.
 786   DT_MIPS_CONFLICTNO = 0x7000000b,
 787   // Number of entries in the .liblist section.
 788   DT_MIPS_LIBLISTNO = 0x70000010,
 789   // Number of entries in the .dynsym section.
 790   DT_MIPS_SYMTABNO = 0x70000011,
 791   // Index of first external dynamic symbol not referenced locally.
 792   DT_MIPS_UNREFEXTNO = 0x70000012,
 793   // Index of first dynamic symbol in global offset table.
 794   DT_MIPS_GOTSYM = 0x70000013,
 795   // Number of page table entries in global offset table.
 796   DT_MIPS_HIPAGENO = 0x70000014,
 797   // Address of run time loader map, used for debugging.
 798   DT_MIPS_RLD_MAP = 0x70000016,
 799   // Delta C++ class definition.
 800   DT_MIPS_DELTA_CLASS = 0x70000017,
 801   // Number of entries in DT_MIPS_DELTA_CLASS.
 802   DT_MIPS_DELTA_CLASS_NO = 0x70000018,
 803   // Delta C++ class instances.
 804   DT_MIPS_DELTA_INSTANCE = 0x70000019,
 805   // Number of entries in DT_MIPS_DELTA_INSTANCE.
 806   DT_MIPS_DELTA_INSTANCE_NO = 0x7000001a,
 807   // Delta relocations.
 808   DT_MIPS_DELTA_RELOC = 0x7000001b,
 809   // Number of entries in DT_MIPS_DELTA_RELOC.
 810   DT_MIPS_DELTA_RELOC_NO = 0x7000001c,
 811   // Delta symbols that Delta relocations refer to.
 812   DT_MIPS_DELTA_SYM = 0x7000001d,
 813   // Number of entries in DT_MIPS_DELTA_SYM.
 814   DT_MIPS_DELTA_SYM_NO = 0x7000001e,
 815   // Delta symbols that hold class declarations.
 816   DT_MIPS_DELTA_CLASSSYM = 0x70000020,
 817   // Number of entries in DT_MIPS_DELTA_CLASSSYM.
 818   DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021,
 819   // Flags indicating information about C++ flavor.
 820   DT_MIPS_CXX_FLAGS = 0x70000022,
 821   // Pixie information (???).
 822   DT_MIPS_PIXIE_INIT = 0x70000023,
 823   // Address of .MIPS.symlib
 824   DT_MIPS_SYMBOL_LIB = 0x70000024,
 825   // The GOT index of the first PTE for a segment
 826   DT_MIPS_LOCALPAGE_GOTIDX = 0x70000025,
 827   // The GOT index of the first PTE for a local symbol
 828   DT_MIPS_LOCAL_GOTIDX = 0x70000026,
 829   // The GOT index of the first PTE for a hidden symbol
 830   DT_MIPS_HIDDEN_GOTIDX = 0x70000027,
 831   // The GOT index of the first PTE for a protected symbol
 832   DT_MIPS_PROTECTED_GOTIDX = 0x70000028,
 833   // Address of `.MIPS.options'.
 834   DT_MIPS_OPTIONS = 0x70000029,
 835   // Address of `.interface'.
 836   DT_MIPS_INTERFACE = 0x7000002a,
 837   // ???
 838   DT_MIPS_DYNSTR_ALIGN = 0x7000002b,
 839   // Size of the .interface section.
 840   DT_MIPS_INTERFACE_SIZE = 0x7000002c,
 841   // Size of rld_text_resolve function stored in the GOT.
 842   DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002d,
 843   // Default suffix of DSO to be added by rld on dlopen() calls.
 844   DT_MIPS_PERF_SUFFIX = 0x7000002e,
 845   // Size of compact relocation section (O32).
 846   DT_MIPS_COMPACT_SIZE = 0x7000002f,
 847   // GP value for auxiliary GOTs.
 848   DT_MIPS_GP_VALUE = 0x70000030,
 849   // Address of auxiliary .dynamic.
 850   DT_MIPS_AUX_DYNAMIC = 0x70000031,
 851   // Address of the base of the PLTGOT.
 852   DT_MIPS_PLTGOT = 0x70000032,
 853   // Points to the base of a writable PLT.
 854   DT_MIPS_RWPLT = 0x70000034,
 855
 856   DT_AUXILIARY = 0x7ffffffd,
 857   DT_USED = 0x7ffffffe,
 858   DT_FILTER = 0x7fffffff
 859 };
 860
 861 // Flags found in the DT_FLAGS dynamic element.
 862
 863 enum DF
 864 {
 865   DF_ORIGIN = 0x1,
 866   DF_SYMBOLIC = 0x2,
 867   DF_TEXTREL = 0x4,
 868   DF_BIND_NOW = 0x8,
 869   DF_STATIC_TLS = 0x10
 870 };
 871
 872 // Flags found in the DT_FLAGS_1 dynamic element.
 873
 874 enum DF_1
 875 {
 876   DF_1_NOW = 0x1,
 877   DF_1_GLOBAL = 0x2,
 878   DF_1_GROUP = 0x4,
 879   DF_1_NODELETE = 0x8,
 880   DF_1_LOADFLTR = 0x10,
 881   DF_1_INITFIRST = 0x20,
 882   DF_1_NOOPEN = 0x40,
 883   DF_1_ORIGIN = 0x80,
 884   DF_1_DIRECT = 0x100,
 885   DF_1_TRANS = 0x200,
 886   DF_1_INTERPOSE = 0x400,
 887   DF_1_NODEFLIB = 0x800,
 888   DF_1_NODUMP = 0x1000,
 889   DF_1_CONLFAT = 0x2000
 890 };
 891
 892 // Version numbers which appear in the vd_version field of a Verdef
 893 // structure.
 894
 895 const int VER_DEF_NONE = 0;
 896 const int VER_DEF_CURRENT = 1;
 897
 898 // Version numbers which appear in the vn_version field of a Verneed
 899 // structure.
 900
 901 const int VER_NEED_NONE = 0;
 902 const int VER_NEED_CURRENT = 1;
 903
 904 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 905 // Vernaux.
 906
 907 const int VER_FLG_BASE = 0x1;
 908 const int VER_FLG_WEAK = 0x2;
 909 const int VER_FLG_INFO = 0x4;
 910
 911 // Special constants found in the SHT_GNU_versym entries.
 912
 913 const int VER_NDX_LOCAL = 0;
 914 const int VER_NDX_GLOBAL = 1;
 915
 916 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 917 // the symbol is hidden and can only be seen when referenced using an
 918 // explicit version number.  This is a GNU extension.
 919
 920 const int VERSYM_HIDDEN = 0x8000;
 921
 922 // This is the mask for the rest of the data in a word read from a
 923 // SHT_GNU_versym section.
 924
 925 const int VERSYM_VERSION = 0x7fff;
 926
 927 // Note descriptor type codes for notes in a non-core file with an
 928 // empty name.
 929
 930 enum
 931 {
 932   // A version string.
 933   NT_VERSION = 1,
 934   // An architecture string.
 935   NT_ARCH = 2
 936 };
 937
 938 // Note descriptor type codes for notes in a non-core file with the
 939 // name "GNU".
 940
 941 enum
 942 {
 943   // The minimum ABI level.  This is used by the dynamic linker to
 944   // describe the minimal kernel version on which a shared library may
 945   // be used.  Th value should be four words.  Word 0 is an OS
 946   // descriptor (see below).  Word 1 is the major version of the ABI.
 947   // Word 2 is the minor version.  Word 3 is the subminor version.
 948   NT_GNU_ABI_TAG = 1,
 949   // Hardware capabilities information.  Word 0 is the number of
 950   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 951   // the descriptor is a series of entries, where each entry is a
 952   // single byte followed by a nul terminated string.  The byte gives
 953   // the bit number to test if enabled in the bitmask.
 954   NT_GNU_HWCAP = 2,
 955   // The build ID as set by the linker's --build-id option.  The
 956   // format of the descriptor depends on the build ID style.
 957   NT_GNU_BUILD_ID = 3,
 958   // The version of gold used to link.  Th descriptor is just a
 959   // string.
 960   NT_GNU_GOLD_VERSION = 4
 961 };
 962
 963 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 964
 965 enum
 966 {
 967   ELF_NOTE_OS_LINUX = 0,
 968   ELF_NOTE_OS_GNU = 1,
 969   ELF_NOTE_OS_SOLARIS2 = 2,
 970   ELF_NOTE_OS_FREEBSD = 3,
 971   ELF_NOTE_OS_NETBSD = 4,
 972   ELF_NOTE_OS_SYLLABLE = 5
 973 };
 974
 975 } // End namespace elfcpp.
 976
 977 // Include internal details after defining the types.
 978 #include "elfcpp_internal.h"
 979
 980 namespace elfcpp
 981 {
 982
 983 // The offset of the ELF file header in the ELF file.
 984
 985 const int file_header_offset = 0;
 986
 987 // ELF structure sizes.
 988
 989 template<int size>
 990 struct Elf_sizes
 991 {
 992   // Size of ELF file header.
 993   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
 994   // Size of ELF segment header.
 995   static const int phdr_size = sizeof(internal::Phdr_data<size>);
 996   // Size of ELF section header.
 997   static const int shdr_size = sizeof(internal::Shdr_data<size>);
 998   // Size of ELF symbol table entry.
 999   static const int sym_size = sizeof(internal::Sym_data<size>);
1000   // Sizes of ELF reloc entries.
1001   static const int rel_size = sizeof(internal::Rel_data<size>);
1002   static const int rela_size = sizeof(internal::Rela_data<size>);
1003   // Size of ELF dynamic entry.
1004   static const int dyn_size = sizeof(internal::Dyn_data<size>);
1005   // Size of ELF version structures.
1006   static const int verdef_size = sizeof(internal::Verdef_data);
1007   static const int verdaux_size = sizeof(internal::Verdaux_data);
1008   static const int verneed_size = sizeof(internal::Verneed_data);
1009   static const int vernaux_size = sizeof(internal::Vernaux_data);
1010 };
1011
1012 // Accessor class for the ELF file header.
1013
1014 template<int size, bool big_endian>
1015 class Ehdr
1016 {
1017  public:
1018   Ehdr(const unsigned char* p)
1019     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
1020   { }
1021
1022   template<typename File>
1023   Ehdr(File* file, typename File::Location loc)
1024     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
1025            file->view(loc.file_offset, loc.data_size).data()))
1026   { }
1027
1028   const unsigned char*
1029   get_e_ident() const
1030   { return this->p_->e_ident; }
1031
1032   Elf_Half
1033   get_e_type() const
1034   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
1035
1036   Elf_Half
1037   get_e_machine() const
1038   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
1039
1040   Elf_Word
1041   get_e_version() const
1042   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
1043
1044   typename Elf_types<size>::Elf_Addr
1045   get_e_entry() const
1046   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
1047
1048   typename Elf_types<size>::Elf_Off
1049   get_e_phoff() const
1050   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
1051
1052   typename Elf_types<size>::Elf_Off
1053   get_e_shoff() const
1054   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
1055
1056   Elf_Word
1057   get_e_flags() const
1058   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
1059
1060   Elf_Half
1061   get_e_ehsize() const
1062   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
1063
1064   Elf_Half
1065   get_e_phentsize() const
1066   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
1067
1068   Elf_Half
1069   get_e_phnum() const
1070   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
1071
1072   Elf_Half
1073   get_e_shentsize() const
1074   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
1075
1076   Elf_Half
1077   get_e_shnum() const
1078   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
1079
1080   Elf_Half
1081   get_e_shstrndx() const
1082   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
1083
1084  private:
1085   const internal::Ehdr_data<size>* p_;
1086 };
1087
1088 // Write class for the ELF file header.
1089
1090 template<int size, bool big_endian>
1091 class Ehdr_write
1092 {
1093  public:
1094   Ehdr_write(unsigned char* p)
1095     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
1096   { }
1097
1098   void
1099   put_e_ident(const unsigned char v[EI_NIDENT]) const
1100   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
1101
1102   void
1103   put_e_type(Elf_Half v)
1104   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
1105
1106   void
1107   put_e_machine(Elf_Half v)
1108   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
1109
1110   void
1111   put_e_version(Elf_Word v)
1112   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
1113
1114   void
1115   put_e_entry(typename Elf_types<size>::Elf_Addr v)
1116   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
1117
1118   void
1119   put_e_phoff(typename Elf_types<size>::Elf_Off v)
1120   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
1121
1122   void
1123   put_e_shoff(typename Elf_types<size>::Elf_Off v)
1124   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
1125
1126   void
1127   put_e_flags(Elf_Word v)
1128   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
1129
1130   void
1131   put_e_ehsize(Elf_Half v)
1132   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
1133
1134   void
1135   put_e_phentsize(Elf_Half v)
1136   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
1137
1138   void
1139   put_e_phnum(Elf_Half v)
1140   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
1141
1142   void
1143   put_e_shentsize(Elf_Half v)
1144   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
1145
1146   void
1147   put_e_shnum(Elf_Half v)
1148   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
1149
1150   void
1151   put_e_shstrndx(Elf_Half v)
1152   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
1153
1154  private:
1155   internal::Ehdr_data<size>* p_;
1156 };
1157
1158 // Accessor class for an ELF section header.
1159
1160 template<int size, bool big_endian>
1161 class Shdr
1162 {
1163  public:
1164   Shdr(const unsigned char* p)
1165     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
1166   { }
1167
1168   template<typename File>
1169   Shdr(File* file, typename File::Location loc)
1170     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1171            file->view(loc.file_offset, loc.data_size).data()))
1172   { }
1173
1174   Elf_Word
1175   get_sh_name() const
1176   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1177
1178   Elf_Word
1179   get_sh_type() const
1180   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1181
1182   typename Elf_types<size>::Elf_WXword
1183   get_sh_flags() const
1184   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1185
1186   typename Elf_types<size>::Elf_Addr
1187   get_sh_addr() const
1188   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1189
1190   typename Elf_types<size>::Elf_Off
1191   get_sh_offset() const
1192   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1193
1194   typename Elf_types<size>::Elf_WXword
1195   get_sh_size() const
1196   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1197
1198   Elf_Word
1199   get_sh_link() const
1200   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1201
1202   Elf_Word
1203   get_sh_info() const
1204   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1205
1206   typename Elf_types<size>::Elf_WXword
1207   get_sh_addralign() const
1208   { return
1209       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1210
1211   typename Elf_types<size>::Elf_WXword
1212   get_sh_entsize() const
1213   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1214
1215  private:
1216   const internal::Shdr_data<size>* p_;
1217 };
1218
1219 // Write class for an ELF section header.
1220
1221 template<int size, bool big_endian>
1222 class Shdr_write
1223 {
1224  public:
1225   Shdr_write(unsigned char* p)
1226     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1227   { }
1228
1229   void
1230   put_sh_name(Elf_Word v)
1231   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1232
1233   void
1234   put_sh_type(Elf_Word v)
1235   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1236
1237   void
1238   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1239   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1240
1241   void
1242   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1243   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1244
1245   void
1246   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1247   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1248
1249   void
1250   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1251   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1252
1253   void
1254   put_sh_link(Elf_Word v)
1255   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1256
1257   void
1258   put_sh_info(Elf_Word v)
1259   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1260
1261   void
1262   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1263   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1264
1265   void
1266   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1267   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1268
1269  private:
1270   internal::Shdr_data<size>* p_;
1271 };
1272
1273 // Accessor class for an ELF segment header.
1274
1275 template<int size, bool big_endian>
1276 class Phdr
1277 {
1278  public:
1279   Phdr(const unsigned char* p)
1280     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1281   { }
1282
1283   template<typename File>
1284   Phdr(File* file, typename File::Location loc)
1285     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1286            file->view(loc.file_offset, loc.data_size).data()))
1287   { }
1288
1289   Elf_Word
1290   get_p_type() const
1291   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1292
1293   typename Elf_types<size>::Elf_Off
1294   get_p_offset() const
1295   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1296
1297   typename Elf_types<size>::Elf_Addr
1298   get_p_vaddr() const
1299   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1300
1301   typename Elf_types<size>::Elf_Addr
1302   get_p_paddr() const
1303   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1304
1305   typename Elf_types<size>::Elf_WXword
1306   get_p_filesz() const
1307   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1308
1309   typename Elf_types<size>::Elf_WXword
1310   get_p_memsz() const
1311   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1312
1313   Elf_Word
1314   get_p_flags() const
1315   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1316
1317   typename Elf_types<size>::Elf_WXword
1318   get_p_align() const
1319   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1320
1321  private:
1322   const internal::Phdr_data<size>* p_;
1323 };
1324
1325 // Write class for an ELF segment header.
1326
1327 template<int size, bool big_endian>
1328 class Phdr_write
1329 {
1330  public:
1331   Phdr_write(unsigned char* p)
1332     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1333   { }
1334
1335   void
1336   put_p_type(Elf_Word v)
1337   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1338
1339   void
1340   put_p_offset(typename Elf_types<size>::Elf_Off v)
1341   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1342
1343   void
1344   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1345   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1346
1347   void
1348   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1349   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1350
1351   void
1352   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1353   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1354
1355   void
1356   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1357   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1358
1359   void
1360   put_p_flags(Elf_Word v)
1361   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1362
1363   void
1364   put_p_align(typename Elf_types<size>::Elf_WXword v)
1365   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1366
1367  private:
1368   internal::Phdr_data<size>* p_;
1369 };
1370
1371 // Accessor class for an ELF symbol table entry.
1372
1373 template<int size, bool big_endian>
1374 class Sym
1375 {
1376  public:
1377   Sym(const unsigned char* p)
1378     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1379   { }
1380
1381   template<typename File>
1382   Sym(File* file, typename File::Location loc)
1383     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1384            file->view(loc.file_offset, loc.data_size).data()))
1385   { }
1386
1387   Elf_Word
1388   get_st_name() const
1389   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1390
1391   typename Elf_types<size>::Elf_Addr
1392   get_st_value() const
1393   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1394
1395   typename Elf_types<size>::Elf_WXword
1396   get_st_size() const
1397   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1398
1399   unsigned char
1400   get_st_info() const
1401   { return this->p_->st_info; }
1402
1403   STB
1404   get_st_bind() const
1405   { return elf_st_bind(this->get_st_info()); }
1406
1407   STT
1408   get_st_type() const
1409   { return elf_st_type(this->get_st_info()); }
1410
1411   unsigned char
1412   get_st_other() const
1413   { return this->p_->st_other; }
1414
1415   STV
1416   get_st_visibility() const
1417   { return elf_st_visibility(this->get_st_other()); }
1418
1419   unsigned char
1420   get_st_nonvis() const
1421   { return elf_st_nonvis(this->get_st_other()); }
1422
1423   Elf_Half
1424   get_st_shndx() const
1425   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1426
1427  private:
1428   const internal::Sym_data<size>* p_;
1429 };
1430
1431 // Writer class for an ELF symbol table entry.
1432
1433 template<int size, bool big_endian>
1434 class Sym_write
1435 {
1436  public:
1437   Sym_write(unsigned char* p)
1438     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1439   { }
1440
1441   void
1442   put_st_name(Elf_Word v)
1443   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1444
1445   void
1446   put_st_value(typename Elf_types<size>::Elf_Addr v)
1447   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1448
1449   void
1450   put_st_size(typename Elf_types<size>::Elf_WXword v)
1451   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1452
1453   void
1454   put_st_info(unsigned char v)
1455   { this->p_->st_info = v; }
1456
1457   void
1458   put_st_info(STB bind, STT type)
1459   { this->p_->st_info = elf_st_info(bind, type); }
1460
1461   void
1462   put_st_other(unsigned char v)
1463   { this->p_->st_other = v; }
1464
1465   void
1466   put_st_other(STV vis, unsigned char nonvis)
1467   { this->p_->st_other = elf_st_other(vis, nonvis); }
1468
1469   void
1470   put_st_shndx(Elf_Half v)
1471   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1472
1473   Sym<size, big_endian>
1474   sym()
1475   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1476
1477  private:
1478   internal::Sym_data<size>* p_;
1479 };
1480
1481 // Accessor classes for an ELF REL relocation entry.
1482
1483 template<int size, bool big_endian>
1484 class Rel
1485 {
1486  public:
1487   Rel(const unsigned char* p)
1488     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1489   { }
1490
1491   template<typename File>
1492   Rel(File* file, typename File::Location loc)
1493     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1494            file->view(loc.file_offset, loc.data_size).data()))
1495   { }
1496
1497   typename Elf_types<size>::Elf_Addr
1498   get_r_offset() const
1499   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1500
1501   typename Elf_types<size>::Elf_WXword
1502   get_r_info() const
1503   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1504
1505  private:
1506   const internal::Rel_data<size>* p_;
1507 };
1508
1509 // Writer class for an ELF Rel relocation.
1510
1511 template<int size, bool big_endian>
1512 class Rel_write
1513 {
1514  public:
1515   Rel_write(unsigned char* p)
1516     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1517   { }
1518
1519   void
1520   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1521   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1522
1523   void
1524   put_r_info(typename Elf_types<size>::Elf_WXword v)
1525   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1526
1527  private:
1528   internal::Rel_data<size>* p_;
1529 };
1530
1531 // Accessor class for an ELF Rela relocation.
1532
1533 template<int size, bool big_endian>
1534 class Rela
1535 {
1536  public:
1537   Rela(const unsigned char* p)
1538     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1539   { }
1540
1541   template<typename File>
1542   Rela(File* file, typename File::Location loc)
1543     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1544            file->view(loc.file_offset, loc.data_size).data()))
1545   { }
1546
1547   typename Elf_types<size>::Elf_Addr
1548   get_r_offset() const
1549   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1550
1551   typename Elf_types<size>::Elf_WXword
1552   get_r_info() const
1553   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1554
1555   typename Elf_types<size>::Elf_Swxword
1556   get_r_addend() const
1557   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1558
1559  private:
1560   const internal::Rela_data<size>* p_;
1561 };
1562
1563 // Writer class for an ELF Rela relocation.
1564
1565 template<int size, bool big_endian>
1566 class Rela_write
1567 {
1568  public:
1569   Rela_write(unsigned char* p)
1570     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1571   { }
1572
1573   void
1574   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1575   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1576
1577   void
1578   put_r_info(typename Elf_types<size>::Elf_WXword v)
1579   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1580
1581   void
1582   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1583   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1584
1585  private:
1586   internal::Rela_data<size>* p_;
1587 };
1588
1589 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1590 // PT_DYNAMIC segment.
1591
1592 template<int size, bool big_endian>
1593 class Dyn
1594 {
1595  public:
1596   Dyn(const unsigned char* p)
1597     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1598   { }
1599
1600   template<typename File>
1601   Dyn(File* file, typename File::Location loc)
1602     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1603            file->view(loc.file_offset, loc.data_size).data()))
1604   { }
1605
1606   typename Elf_types<size>::Elf_Swxword
1607   get_d_tag() const
1608   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1609
1610   typename Elf_types<size>::Elf_WXword
1611   get_d_val() const
1612   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1613
1614   typename Elf_types<size>::Elf_Addr
1615   get_d_ptr() const
1616   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1617
1618  private:
1619   const internal::Dyn_data<size>* p_;
1620 };
1621
1622 // Write class for an entry in the SHT_DYNAMIC section.
1623
1624 template<int size, bool big_endian>
1625 class Dyn_write
1626 {
1627  public:
1628   Dyn_write(unsigned char* p)
1629     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1630   { }
1631
1632   void
1633   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1634   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1635
1636   void
1637   put_d_val(typename Elf_types<size>::Elf_WXword v)
1638   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1639
1640   void
1641   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1642   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1643
1644  private:
1645   internal::Dyn_data<size>* p_;
1646 };
1647
1648 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1649
1650 template<int size, bool big_endian>
1651 class Verdef
1652 {
1653  public:
1654   Verdef(const unsigned char* p)
1655     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1656   { }
1657
1658   template<typename File>
1659   Verdef(File* file, typename File::Location loc)
1660     : p_(reinterpret_cast<const internal::Verdef_data*>(
1661            file->view(loc.file_offset, loc.data_size).data()))
1662   { }
1663
1664   Elf_Half
1665   get_vd_version() const
1666   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1667
1668   Elf_Half
1669   get_vd_flags() const
1670   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1671
1672   Elf_Half
1673   get_vd_ndx() const
1674   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1675
1676   Elf_Half
1677   get_vd_cnt() const
1678   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1679
1680   Elf_Word
1681   get_vd_hash() const
1682   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1683
1684   Elf_Word
1685   get_vd_aux() const
1686   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1687
1688   Elf_Word
1689   get_vd_next() const
1690   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1691
1692  private:
1693   const internal::Verdef_data* p_;
1694 };
1695
1696 template<int size, bool big_endian>
1697 class Verdef_write
1698 {
1699  public:
1700   Verdef_write(unsigned char* p)
1701     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1702   { }
1703
1704   void
1705   set_vd_version(Elf_Half v)
1706   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1707
1708   void
1709   set_vd_flags(Elf_Half v)
1710   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1711
1712   void
1713   set_vd_ndx(Elf_Half v)
1714   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1715
1716   void
1717   set_vd_cnt(Elf_Half v)
1718   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1719
1720   void
1721   set_vd_hash(Elf_Word v)
1722   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1723
1724   void
1725   set_vd_aux(Elf_Word v)
1726   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1727
1728   void
1729   set_vd_next(Elf_Word v)
1730   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1731
1732  private:
1733   internal::Verdef_data* p_;
1734 };
1735
1736 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1737 // section.
1738
1739 template<int size, bool big_endian>
1740 class Verdaux
1741 {
1742  public:
1743   Verdaux(const unsigned char* p)
1744     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1745   { }
1746
1747   template<typename File>
1748   Verdaux(File* file, typename File::Location loc)
1749     : p_(reinterpret_cast<const internal::Verdaux_data*>(
1750            file->view(loc.file_offset, loc.data_size).data()))
1751   { }
1752
1753   Elf_Word
1754   get_vda_name() const
1755   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
1756
1757   Elf_Word
1758   get_vda_next() const
1759   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
1760
1761  private:
1762   const internal::Verdaux_data* p_;
1763 };
1764
1765 template<int size, bool big_endian>
1766 class Verdaux_write
1767 {
1768  public:
1769   Verdaux_write(unsigned char* p)
1770     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
1771   { }
1772
1773   void
1774   set_vda_name(Elf_Word v)
1775   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
1776
1777   void
1778   set_vda_next(Elf_Word v)
1779   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
1780
1781  private:
1782   internal::Verdaux_data* p_;
1783 };
1784
1785 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
1786
1787 template<int size, bool big_endian>
1788 class Verneed
1789 {
1790  public:
1791   Verneed(const unsigned char* p)
1792     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
1793   { }
1794
1795   template<typename File>
1796   Verneed(File* file, typename File::Location loc)
1797     : p_(reinterpret_cast<const internal::Verneed_data*>(
1798            file->view(loc.file_offset, loc.data_size).data()))
1799   { }
1800
1801   Elf_Half
1802   get_vn_version() const
1803   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
1804
1805   Elf_Half
1806   get_vn_cnt() const
1807   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
1808
1809   Elf_Word
1810   get_vn_file() const
1811   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
1812
1813   Elf_Word
1814   get_vn_aux() const
1815   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
1816
1817   Elf_Word
1818   get_vn_next() const
1819   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
1820
1821  private:
1822   const internal::Verneed_data* p_;
1823 };
1824
1825 template<int size, bool big_endian>
1826 class Verneed_write
1827 {
1828  public:
1829   Verneed_write(unsigned char* p)
1830     : p_(reinterpret_cast<internal::Verneed_data*>(p))
1831   { }
1832
1833   void
1834   set_vn_version(Elf_Half v)
1835   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
1836
1837   void
1838   set_vn_cnt(Elf_Half v)
1839   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
1840
1841   void
1842   set_vn_file(Elf_Word v)
1843   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
1844
1845   void
1846   set_vn_aux(Elf_Word v)
1847   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
1848
1849   void
1850   set_vn_next(Elf_Word v)
1851   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
1852
1853  private:
1854   internal::Verneed_data* p_;
1855 };
1856
1857 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
1858 // section.
1859
1860 template<int size, bool big_endian>
1861 class Vernaux
1862 {
1863  public:
1864   Vernaux(const unsigned char* p)
1865     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
1866   { }
1867
1868   template<typename File>
1869   Vernaux(File* file, typename File::Location loc)
1870     : p_(reinterpret_cast<const internal::Vernaux_data*>(
1871            file->view(loc.file_offset, loc.data_size).data()))
1872   { }
1873
1874   Elf_Word
1875   get_vna_hash() const
1876   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
1877
1878   Elf_Half
1879   get_vna_flags() const
1880   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
1881
1882   Elf_Half
1883   get_vna_other() const
1884   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
1885
1886   Elf_Word
1887   get_vna_name() const
1888   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
1889
1890   Elf_Word
1891   get_vna_next() const
1892   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
1893
1894  private:
1895   const internal::Vernaux_data* p_;
1896 };
1897
1898 template<int size, bool big_endian>
1899 class Vernaux_write
1900 {
1901  public:
1902   Vernaux_write(unsigned char* p)
1903     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
1904   { }
1905
1906   void
1907   set_vna_hash(Elf_Word v)
1908   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
1909
1910   void
1911   set_vna_flags(Elf_Half v)
1912   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
1913
1914   void
1915   set_vna_other(Elf_Half v)
1916   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
1917
1918   void
1919   set_vna_name(Elf_Word v)
1920   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
1921
1922   void
1923   set_vna_next(Elf_Word v)
1924   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
1925
1926  private:
1927   internal::Vernaux_data* p_;
1928 };
1929
1930 } // End namespace elfcpp.
1931
1932 #endif // !defined(ELFPCP_H)