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
 872   DT_AUXILIARY = 0x7ffffffd,
 873   DT_USED = 0x7ffffffe,
 874   DT_FILTER = 0x7fffffff
 875 };
 876
 877 // Flags found in the DT_FLAGS dynamic element.
 878
 879 enum DF
 880 {
 881   DF_ORIGIN = 0x1,
 882   DF_SYMBOLIC = 0x2,
 883   DF_TEXTREL = 0x4,
 884   DF_BIND_NOW = 0x8,
 885   DF_STATIC_TLS = 0x10
 886 };
 887
 888 // Flags found in the DT_FLAGS_1 dynamic element.
 889
 890 enum DF_1
 891 {
 892   DF_1_NOW = 0x1,
 893   DF_1_GLOBAL = 0x2,
 894   DF_1_GROUP = 0x4,
 895   DF_1_NODELETE = 0x8,
 896   DF_1_LOADFLTR = 0x10,
 897   DF_1_INITFIRST = 0x20,
 898   DF_1_NOOPEN = 0x40,
 899   DF_1_ORIGIN = 0x80,
 900   DF_1_DIRECT = 0x100,
 901   DF_1_TRANS = 0x200,
 902   DF_1_INTERPOSE = 0x400,
 903   DF_1_NODEFLIB = 0x800,
 904   DF_1_NODUMP = 0x1000,
 905   DF_1_CONLFAT = 0x2000
 906 };
 907
 908 // Version numbers which appear in the vd_version field of a Verdef
 909 // structure.
 910
 911 const int VER_DEF_NONE = 0;
 912 const int VER_DEF_CURRENT = 1;
 913
 914 // Version numbers which appear in the vn_version field of a Verneed
 915 // structure.
 916
 917 const int VER_NEED_NONE = 0;
 918 const int VER_NEED_CURRENT = 1;
 919
 920 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 921 // Vernaux.
 922
 923 const int VER_FLG_BASE = 0x1;
 924 const int VER_FLG_WEAK = 0x2;
 925 const int VER_FLG_INFO = 0x4;
 926
 927 // Special constants found in the SHT_GNU_versym entries.
 928
 929 const int VER_NDX_LOCAL = 0;
 930 const int VER_NDX_GLOBAL = 1;
 931
 932 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 933 // the symbol is hidden and can only be seen when referenced using an
 934 // explicit version number.  This is a GNU extension.
 935
 936 const int VERSYM_HIDDEN = 0x8000;
 937
 938 // This is the mask for the rest of the data in a word read from a
 939 // SHT_GNU_versym section.
 940
 941 const int VERSYM_VERSION = 0x7fff;
 942
 943 // Note descriptor type codes for notes in a non-core file with an
 944 // empty name.
 945
 946 enum
 947 {
 948   // A version string.
 949   NT_VERSION = 1,
 950   // An architecture string.
 951   NT_ARCH = 2
 952 };
 953
 954 // Note descriptor type codes for notes in a non-core file with the
 955 // name "GNU".
 956
 957 enum
 958 {
 959   // The minimum ABI level.  This is used by the dynamic linker to
 960   // describe the minimal kernel version on which a shared library may
 961   // be used.  Th value should be four words.  Word 0 is an OS
 962   // descriptor (see below).  Word 1 is the major version of the ABI.
 963   // Word 2 is the minor version.  Word 3 is the subminor version.
 964   NT_GNU_ABI_TAG = 1,
 965   // Hardware capabilities information.  Word 0 is the number of
 966   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 967   // the descriptor is a series of entries, where each entry is a
 968   // single byte followed by a nul terminated string.  The byte gives
 969   // the bit number to test if enabled in the bitmask.
 970   NT_GNU_HWCAP = 2,
 971   // The build ID as set by the linker's --build-id option.  The
 972   // format of the descriptor depends on the build ID style.
 973   NT_GNU_BUILD_ID = 3,
 974   // The version of gold used to link.  Th descriptor is just a
 975   // string.
 976   NT_GNU_GOLD_VERSION = 4
 977 };
 978
 979 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 980
 981 enum
 982 {
 983   ELF_NOTE_OS_LINUX = 0,
 984   ELF_NOTE_OS_GNU = 1,
 985   ELF_NOTE_OS_SOLARIS2 = 2,
 986   ELF_NOTE_OS_FREEBSD = 3,
 987   ELF_NOTE_OS_NETBSD = 4,
 988   ELF_NOTE_OS_SYLLABLE = 5
 989 };
 990
 991 } // End namespace elfcpp.
 992
 993 // Include internal details after defining the types.
 994 #include "elfcpp_internal.h"
 995
 996 namespace elfcpp
 997 {
 998
 999 // The offset of the ELF file header in the ELF file.
1000
1001 const int file_header_offset = 0;
1002
1003 // ELF structure sizes.
1004
1005 template<int size>
1006 struct Elf_sizes
1007 {
1008   // Size of ELF file header.
1009   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
1010   // Size of ELF segment header.
1011   static const int phdr_size = sizeof(internal::Phdr_data<size>);
1012   // Size of ELF section header.
1013   static const int shdr_size = sizeof(internal::Shdr_data<size>);
1014   // Size of ELF compression header.
1015   static const int chdr_size = sizeof(internal::Chdr_data<size>);
1016   // Size of ELF symbol table entry.
1017   static const int sym_size = sizeof(internal::Sym_data<size>);
1018   // Sizes of ELF reloc entries.
1019   static const int rel_size = sizeof(internal::Rel_data<size>);
1020   static const int rela_size = sizeof(internal::Rela_data<size>);
1021   // Size of ELF dynamic entry.
1022   static const int dyn_size = sizeof(internal::Dyn_data<size>);
1023   // Size of ELF version structures.
1024   static const int verdef_size = sizeof(internal::Verdef_data);
1025   static const int verdaux_size = sizeof(internal::Verdaux_data);
1026   static const int verneed_size = sizeof(internal::Verneed_data);
1027   static const int vernaux_size = sizeof(internal::Vernaux_data);
1028 };
1029
1030 // Accessor class for the ELF file header.
1031
1032 template<int size, bool big_endian>
1033 class Ehdr
1034 {
1035  public:
1036   Ehdr(const unsigned char* p)
1037     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
1038   { }
1039
1040   template<typename File>
1041   Ehdr(File* file, typename File::Location loc)
1042     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
1043            file->view(loc.file_offset, loc.data_size).data()))
1044   { }
1045
1046   const unsigned char*
1047   get_e_ident() const
1048   { return this->p_->e_ident; }
1049
1050   Elf_Half
1051   get_e_type() const
1052   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
1053
1054   Elf_Half
1055   get_e_machine() const
1056   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
1057
1058   Elf_Word
1059   get_e_version() const
1060   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
1061
1062   typename Elf_types<size>::Elf_Addr
1063   get_e_entry() const
1064   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
1065
1066   typename Elf_types<size>::Elf_Off
1067   get_e_phoff() const
1068   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
1069
1070   typename Elf_types<size>::Elf_Off
1071   get_e_shoff() const
1072   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
1073
1074   Elf_Word
1075   get_e_flags() const
1076   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
1077
1078   Elf_Half
1079   get_e_ehsize() const
1080   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
1081
1082   Elf_Half
1083   get_e_phentsize() const
1084   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
1085
1086   Elf_Half
1087   get_e_phnum() const
1088   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
1089
1090   Elf_Half
1091   get_e_shentsize() const
1092   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
1093
1094   Elf_Half
1095   get_e_shnum() const
1096   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
1097
1098   Elf_Half
1099   get_e_shstrndx() const
1100   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
1101
1102  private:
1103   const internal::Ehdr_data<size>* p_;
1104 };
1105
1106 // Write class for the ELF file header.
1107
1108 template<int size, bool big_endian>
1109 class Ehdr_write
1110 {
1111  public:
1112   Ehdr_write(unsigned char* p)
1113     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
1114   { }
1115
1116   void
1117   put_e_ident(const unsigned char v[EI_NIDENT]) const
1118   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
1119
1120   void
1121   put_e_type(Elf_Half v)
1122   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
1123
1124   void
1125   put_e_machine(Elf_Half v)
1126   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
1127
1128   void
1129   put_e_version(Elf_Word v)
1130   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
1131
1132   void
1133   put_e_entry(typename Elf_types<size>::Elf_Addr v)
1134   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
1135
1136   void
1137   put_e_phoff(typename Elf_types<size>::Elf_Off v)
1138   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
1139
1140   void
1141   put_e_shoff(typename Elf_types<size>::Elf_Off v)
1142   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
1143
1144   void
1145   put_e_flags(Elf_Word v)
1146   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
1147
1148   void
1149   put_e_ehsize(Elf_Half v)
1150   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
1151
1152   void
1153   put_e_phentsize(Elf_Half v)
1154   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
1155
1156   void
1157   put_e_phnum(Elf_Half v)
1158   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
1159
1160   void
1161   put_e_shentsize(Elf_Half v)
1162   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
1163
1164   void
1165   put_e_shnum(Elf_Half v)
1166   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
1167
1168   void
1169   put_e_shstrndx(Elf_Half v)
1170   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
1171
1172  private:
1173   internal::Ehdr_data<size>* p_;
1174 };
1175
1176 // Accessor class for an ELF section header.
1177
1178 template<int size, bool big_endian>
1179 class Shdr
1180 {
1181  public:
1182   Shdr(const unsigned char* p)
1183     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
1184   { }
1185
1186   template<typename File>
1187   Shdr(File* file, typename File::Location loc)
1188     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1189            file->view(loc.file_offset, loc.data_size).data()))
1190   { }
1191
1192   Elf_Word
1193   get_sh_name() const
1194   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1195
1196   Elf_Word
1197   get_sh_type() const
1198   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1199
1200   typename Elf_types<size>::Elf_WXword
1201   get_sh_flags() const
1202   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1203
1204   typename Elf_types<size>::Elf_Addr
1205   get_sh_addr() const
1206   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1207
1208   typename Elf_types<size>::Elf_Off
1209   get_sh_offset() const
1210   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1211
1212   typename Elf_types<size>::Elf_WXword
1213   get_sh_size() const
1214   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1215
1216   Elf_Word
1217   get_sh_link() const
1218   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1219
1220   Elf_Word
1221   get_sh_info() const
1222   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1223
1224   typename Elf_types<size>::Elf_WXword
1225   get_sh_addralign() const
1226   { return
1227       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1228
1229   typename Elf_types<size>::Elf_WXword
1230   get_sh_entsize() const
1231   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1232
1233  private:
1234   const internal::Shdr_data<size>* p_;
1235 };
1236
1237 // Write class for an ELF section header.
1238
1239 template<int size, bool big_endian>
1240 class Shdr_write
1241 {
1242  public:
1243   Shdr_write(unsigned char* p)
1244     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1245   { }
1246
1247   void
1248   put_sh_name(Elf_Word v)
1249   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1250
1251   void
1252   put_sh_type(Elf_Word v)
1253   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1254
1255   void
1256   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1257   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1258
1259   void
1260   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1261   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1262
1263   void
1264   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1265   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1266
1267   void
1268   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1269   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1270
1271   void
1272   put_sh_link(Elf_Word v)
1273   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1274
1275   void
1276   put_sh_info(Elf_Word v)
1277   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1278
1279   void
1280   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1281   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1282
1283   void
1284   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1285   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1286
1287  private:
1288   internal::Shdr_data<size>* p_;
1289 };
1290
1291 // Accessor class for an ELF compression header.
1292
1293 template<int size, bool big_endian>
1294 class Chdr
1295 {
1296  public:
1297   Chdr(const unsigned char* p)
1298     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(p))
1299   { }
1300
1301   template<typename File>
1302   Chdr(File* file, typename File::Location loc)
1303     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(
1304            file->view(loc.file_offset, loc.data_size).data()))
1305   { }
1306
1307   Elf_Word
1308   get_ch_type() const
1309   { return Convert<size, big_endian>::convert_host(this->p_->ch_type); }
1310
1311   typename Elf_types<size>::Elf_WXword
1312   get_ch_size() const
1313   { return Convert<size, big_endian>::convert_host(this->p_->ch_size); }
1314
1315   typename Elf_types<size>::Elf_WXword
1316   get_ch_addralign() const
1317   { return
1318       Convert<size, big_endian>::convert_host(this->p_->ch_addralign); }
1319
1320  private:
1321   const internal::Chdr_data<size>* p_;
1322 };
1323
1324 // Write class for an ELF compression header.
1325
1326 template<int size, bool big_endian>
1327 class Chdr_write
1328 {
1329  public:
1330   Chdr_write(unsigned char* p)
1331     : p_(reinterpret_cast<internal::Chdr_data<size>*>(p))
1332   { }
1333
1334   void
1335   put_ch_type(typename Elf_types<size>::Elf_WXword v)
1336   { this->p_->ch_type = Convert<size, big_endian>::convert_host(v); }
1337
1338   void
1339   put_ch_size(typename Elf_types<size>::Elf_WXword v)
1340   { this->p_->ch_size = Convert<size, big_endian>::convert_host(v); }
1341
1342   void
1343   put_ch_addralign(typename Elf_types<size>::Elf_WXword v)
1344   { this->p_->ch_addralign = Convert<size, big_endian>::convert_host(v); }
1345
1346  private:
1347   internal::Chdr_data<size>* p_;
1348 };
1349
1350 // Accessor class for an ELF segment header.
1351
1352 template<int size, bool big_endian>
1353 class Phdr
1354 {
1355  public:
1356   Phdr(const unsigned char* p)
1357     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1358   { }
1359
1360   template<typename File>
1361   Phdr(File* file, typename File::Location loc)
1362     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1363            file->view(loc.file_offset, loc.data_size).data()))
1364   { }
1365
1366   Elf_Word
1367   get_p_type() const
1368   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1369
1370   typename Elf_types<size>::Elf_Off
1371   get_p_offset() const
1372   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1373
1374   typename Elf_types<size>::Elf_Addr
1375   get_p_vaddr() const
1376   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1377
1378   typename Elf_types<size>::Elf_Addr
1379   get_p_paddr() const
1380   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1381
1382   typename Elf_types<size>::Elf_WXword
1383   get_p_filesz() const
1384   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1385
1386   typename Elf_types<size>::Elf_WXword
1387   get_p_memsz() const
1388   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1389
1390   Elf_Word
1391   get_p_flags() const
1392   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1393
1394   typename Elf_types<size>::Elf_WXword
1395   get_p_align() const
1396   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1397
1398  private:
1399   const internal::Phdr_data<size>* p_;
1400 };
1401
1402 // Write class for an ELF segment header.
1403
1404 template<int size, bool big_endian>
1405 class Phdr_write
1406 {
1407  public:
1408   Phdr_write(unsigned char* p)
1409     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1410   { }
1411
1412   void
1413   put_p_type(Elf_Word v)
1414   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1415
1416   void
1417   put_p_offset(typename Elf_types<size>::Elf_Off v)
1418   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1419
1420   void
1421   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1422   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1423
1424   void
1425   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1426   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1427
1428   void
1429   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1430   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1431
1432   void
1433   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1434   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1435
1436   void
1437   put_p_flags(Elf_Word v)
1438   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1439
1440   void
1441   put_p_align(typename Elf_types<size>::Elf_WXword v)
1442   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1443
1444  private:
1445   internal::Phdr_data<size>* p_;
1446 };
1447
1448 // Accessor class for an ELF symbol table entry.
1449
1450 template<int size, bool big_endian>
1451 class Sym
1452 {
1453  public:
1454   Sym(const unsigned char* p)
1455     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1456   { }
1457
1458   template<typename File>
1459   Sym(File* file, typename File::Location loc)
1460     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1461            file->view(loc.file_offset, loc.data_size).data()))
1462   { }
1463
1464   Elf_Word
1465   get_st_name() const
1466   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1467
1468   typename Elf_types<size>::Elf_Addr
1469   get_st_value() const
1470   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1471
1472   typename Elf_types<size>::Elf_WXword
1473   get_st_size() const
1474   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1475
1476   unsigned char
1477   get_st_info() const
1478   { return this->p_->st_info; }
1479
1480   STB
1481   get_st_bind() const
1482   { return elf_st_bind(this->get_st_info()); }
1483
1484   STT
1485   get_st_type() const
1486   { return elf_st_type(this->get_st_info()); }
1487
1488   unsigned char
1489   get_st_other() const
1490   { return this->p_->st_other; }
1491
1492   STV
1493   get_st_visibility() const
1494   { return elf_st_visibility(this->get_st_other()); }
1495
1496   unsigned char
1497   get_st_nonvis() const
1498   { return elf_st_nonvis(this->get_st_other()); }
1499
1500   Elf_Half
1501   get_st_shndx() const
1502   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1503
1504  private:
1505   const internal::Sym_data<size>* p_;
1506 };
1507
1508 // Writer class for an ELF symbol table entry.
1509
1510 template<int size, bool big_endian>
1511 class Sym_write
1512 {
1513  public:
1514   Sym_write(unsigned char* p)
1515     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1516   { }
1517
1518   void
1519   put_st_name(Elf_Word v)
1520   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1521
1522   void
1523   put_st_value(typename Elf_types<size>::Elf_Addr v)
1524   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1525
1526   void
1527   put_st_size(typename Elf_types<size>::Elf_WXword v)
1528   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1529
1530   void
1531   put_st_info(unsigned char v)
1532   { this->p_->st_info = v; }
1533
1534   void
1535   put_st_info(STB bind, STT type)
1536   { this->p_->st_info = elf_st_info(bind, type); }
1537
1538   void
1539   put_st_other(unsigned char v)
1540   { this->p_->st_other = v; }
1541
1542   void
1543   put_st_other(STV vis, unsigned char nonvis)
1544   { this->p_->st_other = elf_st_other(vis, nonvis); }
1545
1546   void
1547   put_st_shndx(Elf_Half v)
1548   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1549
1550   Sym<size, big_endian>
1551   sym()
1552   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1553
1554  private:
1555   internal::Sym_data<size>* p_;
1556 };
1557
1558 // Accessor classes for an ELF REL relocation entry.
1559
1560 template<int size, bool big_endian>
1561 class Rel
1562 {
1563  public:
1564   Rel(const unsigned char* p)
1565     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1566   { }
1567
1568   template<typename File>
1569   Rel(File* file, typename File::Location loc)
1570     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1571            file->view(loc.file_offset, loc.data_size).data()))
1572   { }
1573
1574   typename Elf_types<size>::Elf_Addr
1575   get_r_offset() const
1576   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1577
1578   typename Elf_types<size>::Elf_WXword
1579   get_r_info() const
1580   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1581
1582  private:
1583   const internal::Rel_data<size>* p_;
1584 };
1585
1586 // Writer class for an ELF Rel relocation.
1587
1588 template<int size, bool big_endian>
1589 class Rel_write
1590 {
1591  public:
1592   Rel_write(unsigned char* p)
1593     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1594   { }
1595
1596   void
1597   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1598   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1599
1600   void
1601   put_r_info(typename Elf_types<size>::Elf_WXword v)
1602   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1603
1604  private:
1605   internal::Rel_data<size>* p_;
1606 };
1607
1608 // Accessor class for an ELF Rela relocation.
1609
1610 template<int size, bool big_endian>
1611 class Rela
1612 {
1613  public:
1614   Rela(const unsigned char* p)
1615     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1616   { }
1617
1618   template<typename File>
1619   Rela(File* file, typename File::Location loc)
1620     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1621            file->view(loc.file_offset, loc.data_size).data()))
1622   { }
1623
1624   typename Elf_types<size>::Elf_Addr
1625   get_r_offset() const
1626   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1627
1628   typename Elf_types<size>::Elf_WXword
1629   get_r_info() const
1630   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1631
1632   typename Elf_types<size>::Elf_Swxword
1633   get_r_addend() const
1634   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1635
1636  private:
1637   const internal::Rela_data<size>* p_;
1638 };
1639
1640 // Writer class for an ELF Rela relocation.
1641
1642 template<int size, bool big_endian>
1643 class Rela_write
1644 {
1645  public:
1646   Rela_write(unsigned char* p)
1647     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1648   { }
1649
1650   void
1651   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1652   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1653
1654   void
1655   put_r_info(typename Elf_types<size>::Elf_WXword v)
1656   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1657
1658   void
1659   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1660   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1661
1662  private:
1663   internal::Rela_data<size>* p_;
1664 };
1665
1666 // MIPS-64 has a non-standard relocation layout.
1667
1668 template<bool big_endian>
1669 class Mips64_rel
1670 {
1671  public:
1672   Mips64_rel(const unsigned char* p)
1673     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(p))
1674   { }
1675
1676   template<typename File>
1677   Mips64_rel(File* file, typename File::Location loc)
1678     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(
1679            file->view(loc.file_offset, loc.data_size).data()))
1680   { }
1681
1682   typename Elf_types<64>::Elf_Addr
1683   get_r_offset() const
1684   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1685
1686   Elf_Word
1687   get_r_sym() const
1688   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1689
1690   unsigned char
1691   get_r_ssym() const
1692   { return this->p_->r_ssym; }
1693
1694   unsigned char
1695   get_r_type() const
1696   { return this->p_->r_type; }
1697
1698   unsigned char
1699   get_r_type2() const
1700   { return this->p_->r_type2; }
1701
1702   unsigned char
1703   get_r_type3() const
1704   { return this->p_->r_type3; }
1705
1706  private:
1707   const internal::Mips64_rel_data* p_;
1708 };
1709
1710 template<bool big_endian>
1711 class Mips64_rel_write
1712 {
1713  public:
1714   Mips64_rel_write(unsigned char* p)
1715     : p_(reinterpret_cast<internal::Mips64_rel_data*>(p))
1716   { }
1717
1718   void
1719   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1720   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1721
1722   void
1723   put_r_sym(Elf_Word v)
1724   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1725
1726   void
1727   put_r_ssym(unsigned char v)
1728   { this->p_->r_ssym = v; }
1729
1730   void
1731   put_r_type(unsigned char v)
1732   { this->p_->r_type = v; }
1733
1734   void
1735   put_r_type2(unsigned char v)
1736   { this->p_->r_type2 = v; }
1737
1738   void
1739   put_r_type3(unsigned char v)
1740   { this->p_->r_type3 = v; }
1741
1742  private:
1743   internal::Mips64_rel_data* p_;
1744 };
1745
1746 template<bool big_endian>
1747 class Mips64_rela
1748 {
1749  public:
1750   Mips64_rela(const unsigned char* p)
1751     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(p))
1752   { }
1753
1754   template<typename File>
1755   Mips64_rela(File* file, typename File::Location loc)
1756     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(
1757            file->view(loc.file_offset, loc.data_size).data()))
1758   { }
1759
1760   typename Elf_types<64>::Elf_Addr
1761   get_r_offset() const
1762   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1763
1764   Elf_Word
1765   get_r_sym() const
1766   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1767
1768   unsigned char
1769   get_r_ssym() const
1770   { return this->p_->r_ssym; }
1771
1772   unsigned char
1773   get_r_type() const
1774   { return this->p_->r_type; }
1775
1776   unsigned char
1777   get_r_type2() const
1778   { return this->p_->r_type2; }
1779
1780   unsigned char
1781   get_r_type3() const
1782   { return this->p_->r_type3; }
1783
1784   typename Elf_types<64>::Elf_Swxword
1785   get_r_addend() const
1786   { return Convert<64, big_endian>::convert_host(this->p_->r_addend); }
1787
1788  private:
1789   const internal::Mips64_rela_data* p_;
1790 };
1791
1792 template<bool big_endian>
1793 class Mips64_rela_write
1794 {
1795  public:
1796   Mips64_rela_write(unsigned char* p)
1797     : p_(reinterpret_cast<internal::Mips64_rela_data*>(p))
1798   { }
1799
1800   void
1801   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1802   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1803
1804   void
1805   put_r_sym(Elf_Word v)
1806   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1807
1808   void
1809   put_r_ssym(unsigned char v)
1810   { this->p_->r_ssym = v; }
1811
1812   void
1813   put_r_type(unsigned char v)
1814   { this->p_->r_type = v; }
1815
1816   void
1817   put_r_type2(unsigned char v)
1818   { this->p_->r_type2 = v; }
1819
1820   void
1821   put_r_type3(unsigned char v)
1822   { this->p_->r_type3 = v; }
1823
1824   void
1825   put_r_addend(typename Elf_types<64>::Elf_Swxword v)
1826   { this->p_->r_addend = Convert<64, big_endian>::convert_host(v); }
1827
1828  private:
1829   internal::Mips64_rela_data* p_;
1830 };
1831
1832 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1833 // PT_DYNAMIC segment.
1834
1835 template<int size, bool big_endian>
1836 class Dyn
1837 {
1838  public:
1839   Dyn(const unsigned char* p)
1840     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1841   { }
1842
1843   template<typename File>
1844   Dyn(File* file, typename File::Location loc)
1845     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1846            file->view(loc.file_offset, loc.data_size).data()))
1847   { }
1848
1849   typename Elf_types<size>::Elf_Swxword
1850   get_d_tag() const
1851   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1852
1853   typename Elf_types<size>::Elf_WXword
1854   get_d_val() const
1855   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1856
1857   typename Elf_types<size>::Elf_Addr
1858   get_d_ptr() const
1859   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1860
1861  private:
1862   const internal::Dyn_data<size>* p_;
1863 };
1864
1865 // Write class for an entry in the SHT_DYNAMIC section.
1866
1867 template<int size, bool big_endian>
1868 class Dyn_write
1869 {
1870  public:
1871   Dyn_write(unsigned char* p)
1872     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1873   { }
1874
1875   void
1876   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1877   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1878
1879   void
1880   put_d_val(typename Elf_types<size>::Elf_WXword v)
1881   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1882
1883   void
1884   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1885   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1886
1887  private:
1888   internal::Dyn_data<size>* p_;
1889 };
1890
1891 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1892
1893 template<int size, bool big_endian>
1894 class Verdef
1895 {
1896  public:
1897   Verdef(const unsigned char* p)
1898     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1899   { }
1900
1901   template<typename File>
1902   Verdef(File* file, typename File::Location loc)
1903     : p_(reinterpret_cast<const internal::Verdef_data*>(
1904            file->view(loc.file_offset, loc.data_size).data()))
1905   { }
1906
1907   Elf_Half
1908   get_vd_version() const
1909   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1910
1911   Elf_Half
1912   get_vd_flags() const
1913   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1914
1915   Elf_Half
1916   get_vd_ndx() const
1917   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1918
1919   Elf_Half
1920   get_vd_cnt() const
1921   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1922
1923   Elf_Word
1924   get_vd_hash() const
1925   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1926
1927   Elf_Word
1928   get_vd_aux() const
1929   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1930
1931   Elf_Word
1932   get_vd_next() const
1933   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1934
1935  private:
1936   const internal::Verdef_data* p_;
1937 };
1938
1939 template<int size, bool big_endian>
1940 class Verdef_write
1941 {
1942  public:
1943   Verdef_write(unsigned char* p)
1944     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1945   { }
1946
1947   void
1948   set_vd_version(Elf_Half v)
1949   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1950
1951   void
1952   set_vd_flags(Elf_Half v)
1953   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1954
1955   void
1956   set_vd_ndx(Elf_Half v)
1957   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1958
1959   void
1960   set_vd_cnt(Elf_Half v)
1961   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1962
1963   void
1964   set_vd_hash(Elf_Word v)
1965   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1966
1967   void
1968   set_vd_aux(Elf_Word v)
1969   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1970
1971   void
1972   set_vd_next(Elf_Word v)
1973   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1974
1975  private:
1976   internal::Verdef_data* p_;
1977 };
1978
1979 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1980 // section.
1981
1982 template<int size, bool big_endian>
1983 class Verdaux
1984 {
1985  public:
1986   Verdaux(const unsigned char* p)
1987     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1988   { }
1989
1990   template<typename File>
1991   Verdaux(File* file, typename File::Location loc)
1992     : p_(reinterpret_cast<const internal::Verdaux_data*>(
1993            file->view(loc.file_offset, loc.data_size).data()))
1994   { }
1995
1996   Elf_Word
1997   get_vda_name() const
1998   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
1999
2000   Elf_Word
2001   get_vda_next() const
2002   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
2003
2004  private:
2005   const internal::Verdaux_data* p_;
2006 };
2007
2008 template<int size, bool big_endian>
2009 class Verdaux_write
2010 {
2011  public:
2012   Verdaux_write(unsigned char* p)
2013     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
2014   { }
2015
2016   void
2017   set_vda_name(Elf_Word v)
2018   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
2019
2020   void
2021   set_vda_next(Elf_Word v)
2022   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
2023
2024  private:
2025   internal::Verdaux_data* p_;
2026 };
2027
2028 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
2029
2030 template<int size, bool big_endian>
2031 class Verneed
2032 {
2033  public:
2034   Verneed(const unsigned char* p)
2035     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
2036   { }
2037
2038   template<typename File>
2039   Verneed(File* file, typename File::Location loc)
2040     : p_(reinterpret_cast<const internal::Verneed_data*>(
2041            file->view(loc.file_offset, loc.data_size).data()))
2042   { }
2043
2044   Elf_Half
2045   get_vn_version() const
2046   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
2047
2048   Elf_Half
2049   get_vn_cnt() const
2050   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
2051
2052   Elf_Word
2053   get_vn_file() const
2054   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
2055
2056   Elf_Word
2057   get_vn_aux() const
2058   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
2059
2060   Elf_Word
2061   get_vn_next() const
2062   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
2063
2064  private:
2065   const internal::Verneed_data* p_;
2066 };
2067
2068 template<int size, bool big_endian>
2069 class Verneed_write
2070 {
2071  public:
2072   Verneed_write(unsigned char* p)
2073     : p_(reinterpret_cast<internal::Verneed_data*>(p))
2074   { }
2075
2076   void
2077   set_vn_version(Elf_Half v)
2078   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
2079
2080   void
2081   set_vn_cnt(Elf_Half v)
2082   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
2083
2084   void
2085   set_vn_file(Elf_Word v)
2086   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
2087
2088   void
2089   set_vn_aux(Elf_Word v)
2090   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
2091
2092   void
2093   set_vn_next(Elf_Word v)
2094   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
2095
2096  private:
2097   internal::Verneed_data* p_;
2098 };
2099
2100 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
2101 // section.
2102
2103 template<int size, bool big_endian>
2104 class Vernaux
2105 {
2106  public:
2107   Vernaux(const unsigned char* p)
2108     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
2109   { }
2110
2111   template<typename File>
2112   Vernaux(File* file, typename File::Location loc)
2113     : p_(reinterpret_cast<const internal::Vernaux_data*>(
2114            file->view(loc.file_offset, loc.data_size).data()))
2115   { }
2116
2117   Elf_Word
2118   get_vna_hash() const
2119   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
2120
2121   Elf_Half
2122   get_vna_flags() const
2123   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
2124
2125   Elf_Half
2126   get_vna_other() const
2127   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
2128
2129   Elf_Word
2130   get_vna_name() const
2131   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
2132
2133   Elf_Word
2134   get_vna_next() const
2135   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
2136
2137  private:
2138   const internal::Vernaux_data* p_;
2139 };
2140
2141 template<int size, bool big_endian>
2142 class Vernaux_write
2143 {
2144  public:
2145   Vernaux_write(unsigned char* p)
2146     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
2147   { }
2148
2149   void
2150   set_vna_hash(Elf_Word v)
2151   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
2152
2153   void
2154   set_vna_flags(Elf_Half v)
2155   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
2156
2157   void
2158   set_vna_other(Elf_Half v)
2159   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
2160
2161   void
2162   set_vna_name(Elf_Word v)
2163   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
2164
2165   void
2166   set_vna_next(Elf_Word v)
2167   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
2168
2169  private:
2170   internal::Vernaux_data* p_;
2171 };
2172
2173 } // End namespace elfcpp.
2174
2175 #endif // !defined(ELFPCP_H)