elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright (C) 2006-2017 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_TI_PRU = 144,
 272   EM_AARCH64 = 183,
 273   EM_TILEGX = 191,
 274   // The Morph MT.
 275   EM_MT = 0x2530,
 276   // DLX.
 277   EM_DLX = 0x5aa5,
 278   // FRV.
 279   EM_FRV = 0x5441,
 280   // Infineon Technologies 16-bit microcontroller with C166-V2 core.
 281   EM_X16X = 0x4688,
 282   // Xstorym16
 283   EM_XSTORMY16 = 0xad45,
 284   // Renesas M32C
 285   EM_M32C = 0xfeb0,
 286   // Vitesse IQ2000
 287   EM_IQ2000 = 0xfeba,
 288   // NIOS
 289   EM_NIOS32 = 0xfebb
 290   // Old AVR objects used 0x1057 (EM_AVR is correct).
 291   // Old MSP430 objects used 0x1059 (EM_MSP430 is correct).
 292   // Old FR30 objects used 0x3330 (EM_FR30 is correct).
 293   // Old OpenRISC objects used 0x3426 and 0x8472 (EM_OR1K is correct).
 294   // Old D10V objects used 0x7650 (EM_D10V is correct).
 295   // Old D30V objects used 0x7676 (EM_D30V is correct).
 296   // Old IP2X objects used 0x8217 (EM_IP2K is correct).
 297   // Old PowerPC objects used 0x9025 (EM_PPC is correct).
 298   // Old Alpha objects used 0x9026 (EM_ALPHA is correct).
 299   // Old M32R objects used 0x9041 (EM_M32R is correct).
 300   // Old V850 objects used 0x9080 (EM_V850 is correct).
 301   // Old S/390 objects used 0xa390 (EM_S390 is correct).
 302   // Old Xtensa objects used 0xabc7 (EM_XTENSA is correct).
 303   // Old MN10300 objects used 0xbeef (EM_MN10300 is correct).
 304   // Old MN10200 objects used 0xdead (EM_MN10200 is correct).
 305 };
 306
 307 // A special value found in the Ehdr e_phnum field.
 308
 309 enum
 310 {
 311   // Number of program segments stored in sh_info field of first
 312   // section headre.
 313   PN_XNUM = 0xffff
 314 };
 315
 316 // Special section indices.
 317
 318 enum
 319 {
 320   SHN_UNDEF = 0,
 321   SHN_LORESERVE = 0xff00,
 322   SHN_LOPROC = 0xff00,
 323   SHN_HIPROC = 0xff1f,
 324   SHN_LOOS = 0xff20,
 325   SHN_HIOS = 0xff3f,
 326   SHN_ABS = 0xfff1,
 327   SHN_COMMON = 0xfff2,
 328   SHN_XINDEX = 0xffff,
 329   SHN_HIRESERVE = 0xffff,
 330
 331   // Provide for initial and final section ordering in conjunction
 332   // with the SHF_LINK_ORDER and SHF_ORDERED section flags.
 333   SHN_BEFORE = 0xff00,
 334   SHN_AFTER = 0xff01,
 335
 336   // x86_64 specific large common symbol.
 337   SHN_X86_64_LCOMMON = 0xff02
 338 };
 339
 340 // The valid values found in the Shdr sh_type field.
 341
 342 enum SHT
 343 {
 344   SHT_NULL = 0,
 345   SHT_PROGBITS = 1,
 346   SHT_SYMTAB = 2,
 347   SHT_STRTAB = 3,
 348   SHT_RELA = 4,
 349   SHT_HASH = 5,
 350   SHT_DYNAMIC = 6,
 351   SHT_NOTE = 7,
 352   SHT_NOBITS = 8,
 353   SHT_REL = 9,
 354   SHT_SHLIB = 10,
 355   SHT_DYNSYM = 11,
 356   SHT_INIT_ARRAY = 14,
 357   SHT_FINI_ARRAY = 15,
 358   SHT_PREINIT_ARRAY = 16,
 359   SHT_GROUP = 17,
 360   SHT_SYMTAB_SHNDX = 18,
 361   SHT_LOOS = 0x60000000,
 362   SHT_HIOS = 0x6fffffff,
 363   SHT_LOPROC = 0x70000000,
 364   SHT_HIPROC = 0x7fffffff,
 365   SHT_LOUSER = 0x80000000,
 366   SHT_HIUSER = 0xffffffff,
 367   // The remaining values are not in the standard.
 368   // Incremental build data.
 369   SHT_GNU_INCREMENTAL_INPUTS = 0x6fff4700,
 370   SHT_GNU_INCREMENTAL_SYMTAB = 0x6fff4701,
 371   SHT_GNU_INCREMENTAL_RELOCS = 0x6fff4702,
 372   SHT_GNU_INCREMENTAL_GOT_PLT = 0x6fff4703,
 373   // Object attributes.
 374   SHT_GNU_ATTRIBUTES = 0x6ffffff5,
 375   // GNU style dynamic hash table.
 376   SHT_GNU_HASH = 0x6ffffff6,
 377   // List of prelink dependencies.
 378   SHT_GNU_LIBLIST = 0x6ffffff7,
 379   // Versions defined by file.
 380   SHT_SUNW_verdef = 0x6ffffffd,
 381   SHT_GNU_verdef = 0x6ffffffd,
 382   // Versions needed by file.
 383   SHT_SUNW_verneed = 0x6ffffffe,
 384   SHT_GNU_verneed = 0x6ffffffe,
 385   // Symbol versions,
 386   SHT_SUNW_versym = 0x6fffffff,
 387   SHT_GNU_versym = 0x6fffffff,
 388
 389   SHT_SPARC_GOTDATA = 0x70000000,
 390
 391   // ARM-specific section types.
 392   // Exception Index table.
 393   SHT_ARM_EXIDX = 0x70000001,
 394   // BPABI DLL dynamic linking pre-emption map.
 395   SHT_ARM_PREEMPTMAP = 0x70000002,
 396   // Object file compatibility attributes.
 397   SHT_ARM_ATTRIBUTES = 0x70000003,
 398   // Support for debugging overlaid programs.
 399   SHT_ARM_DEBUGOVERLAY = 0x70000004,
 400   SHT_ARM_OVERLAYSECTION = 0x70000005,
 401
 402   // x86_64 unwind information.
 403   SHT_X86_64_UNWIND = 0x70000001,
 404
 405   // MIPS-specific section types.
 406   // Section contains register usage information.
 407   SHT_MIPS_REGINFO = 0x70000006,
 408   // Section contains miscellaneous options.
 409   SHT_MIPS_OPTIONS = 0x7000000d,
 410   // ABI related flags section.
 411   SHT_MIPS_ABIFLAGS = 0x7000002a,
 412
 413   // AARCH64-specific section type.
 414   SHT_AARCH64_ATTRIBUTES = 0x70000003,
 415
 416   // Link editor is to sort the entries in this section based on the
 417   // address specified in the associated symbol table entry.
 418   SHT_ORDERED = 0x7fffffff
 419 };
 420
 421 // The valid bit flags found in the Shdr sh_flags field.
 422
 423 enum SHF
 424 {
 425   SHF_WRITE = 0x1,
 426   SHF_ALLOC = 0x2,
 427   SHF_EXECINSTR = 0x4,
 428   SHF_MERGE = 0x10,
 429   SHF_STRINGS = 0x20,
 430   SHF_INFO_LINK = 0x40,
 431   SHF_LINK_ORDER = 0x80,
 432   SHF_OS_NONCONFORMING = 0x100,
 433   SHF_GROUP = 0x200,
 434   SHF_TLS = 0x400,
 435   SHF_COMPRESSED = 0x800,
 436   SHF_MASKOS = 0x0ff00000,
 437   SHF_MASKPROC = 0xf0000000,
 438
 439   // Indicates this section requires ordering in relation to
 440   // other sections of the same type.  Ordered sections are
 441   // combined within the section pointed to by the sh_link entry.
 442   // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
 443   // sorted section is to precede or follow, respectively, all
 444   // other sections in the set being ordered.
 445   SHF_ORDERED = 0x40000000,
 446   // This section is excluded from input to the link-edit of an
 447   // executable or shared object.  This flag is ignored if SHF_ALLOC
 448   // is also set, or if relocations exist against the section.
 449   SHF_EXCLUDE = 0x80000000,
 450
 451   // Section with data that is GP relative addressable.
 452   SHF_MIPS_GPREL = 0x10000000,
 453
 454   // x86_64 specific large section.
 455   SHF_X86_64_LARGE = 0x10000000
 456 };
 457
 458 // Values which appear in the first Elf_WXword of the section data
 459 // of a SHF_COMPRESSED section.
 460 enum
 461 {
 462   ELFCOMPRESS_ZLIB = 1,
 463   ELFCOMPRESS_LOOS = 0x60000000,
 464   ELFCOMPRESS_HIOS = 0x6fffffff,
 465   ELFCOMPRESS_LOPROC = 0x70000000,
 466   ELFCOMPRESS_HIPROC = 0x7fffffff,
 467 };
 468
 469 // Bit flags which appear in the first 32-bit word of the section data
 470 // of a SHT_GROUP section.
 471
 472 enum
 473 {
 474   GRP_COMDAT = 0x1,
 475   GRP_MASKOS = 0x0ff00000,
 476   GRP_MASKPROC = 0xf0000000
 477 };
 478
 479 // The valid values found in the Phdr p_type field.
 480
 481 enum PT
 482 {
 483   PT_NULL = 0,
 484   PT_LOAD = 1,
 485   PT_DYNAMIC = 2,
 486   PT_INTERP = 3,
 487   PT_NOTE = 4,
 488   PT_SHLIB = 5,
 489   PT_PHDR = 6,
 490   PT_TLS = 7,
 491   PT_LOOS = 0x60000000,
 492   PT_HIOS = 0x6fffffff,
 493   PT_LOPROC = 0x70000000,
 494   PT_HIPROC = 0x7fffffff,
 495   // The remaining values are not in the standard.
 496   // Frame unwind information.
 497   PT_GNU_EH_FRAME = 0x6474e550,
 498   PT_SUNW_EH_FRAME = 0x6474e550,
 499   // Stack flags.
 500   PT_GNU_STACK = 0x6474e551,
 501   // Read only after relocation.
 502   PT_GNU_RELRO = 0x6474e552,
 503   // Platform architecture compatibility information
 504   PT_ARM_ARCHEXT = 0x70000000,
 505   // Exception unwind tables
 506   PT_ARM_EXIDX = 0x70000001,
 507   // Register usage information.  Identifies one .reginfo section.
 508   PT_MIPS_REGINFO =0x70000000,
 509   // Runtime procedure table.
 510   PT_MIPS_RTPROC = 0x70000001,
 511   // .MIPS.options section.
 512   PT_MIPS_OPTIONS = 0x70000002,
 513   // .MIPS.abiflags section.
 514   PT_MIPS_ABIFLAGS = 0x70000003,
 515   // Platform architecture compatibility information
 516   PT_AARCH64_ARCHEXT = 0x70000000,
 517   // Exception unwind tables
 518   PT_AARCH64_UNWIND = 0x70000001,
 519   // 4k page table size
 520   PT_S390_PGSTE = 0x70000000,
 521 };
 522
 523 // The valid bit flags found in the Phdr p_flags field.
 524
 525 enum PF
 526 {
 527   PF_X = 0x1,
 528   PF_W = 0x2,
 529   PF_R = 0x4,
 530   PF_MASKOS = 0x0ff00000,
 531   PF_MASKPROC = 0xf0000000
 532 };
 533
 534 // Symbol binding from Sym st_info field.
 535
 536 enum STB
 537 {
 538   STB_LOCAL = 0,
 539   STB_GLOBAL = 1,
 540   STB_WEAK = 2,
 541   STB_LOOS = 10,
 542   STB_GNU_UNIQUE = 10,
 543   STB_HIOS = 12,
 544   STB_LOPROC = 13,
 545   STB_HIPROC = 15
 546 };
 547
 548 // Symbol types from Sym st_info field.
 549
 550 enum STT
 551 {
 552   STT_NOTYPE = 0,
 553   STT_OBJECT = 1,
 554   STT_FUNC = 2,
 555   STT_SECTION = 3,
 556   STT_FILE = 4,
 557   STT_COMMON = 5,
 558   STT_TLS = 6,
 559
 560   // GNU extension: symbol value points to a function which is called
 561   // at runtime to determine the final value of the symbol.
 562   STT_GNU_IFUNC = 10,
 563
 564   STT_LOOS = 10,
 565   STT_HIOS = 12,
 566   STT_LOPROC = 13,
 567   STT_HIPROC = 15,
 568
 569   // The section type that must be used for register symbols on
 570   // Sparc.  These symbols initialize a global register.
 571   STT_SPARC_REGISTER = 13,
 572
 573   // ARM: a THUMB function.  This is not defined in ARM ELF Specification but
 574   // used by the GNU tool-chain.
 575   STT_ARM_TFUNC = 13
 576 };
 577
 578 inline STB
 579 elf_st_bind(unsigned char info)
 580 {
 581   return static_cast<STB>(info >> 4);
 582 }
 583
 584 inline STT
 585 elf_st_type(unsigned char info)
 586 {
 587   return static_cast<STT>(info & 0xf);
 588 }
 589
 590 inline unsigned char
 591 elf_st_info(STB bind, STT type)
 592 {
 593   return ((static_cast<unsigned char>(bind) << 4)
 594           + (static_cast<unsigned char>(type) & 0xf));
 595 }
 596
 597 // Symbol visibility from Sym st_other field.
 598
 599 enum STV
 600 {
 601   STV_DEFAULT = 0,
 602   STV_INTERNAL = 1,
 603   STV_HIDDEN = 2,
 604   STV_PROTECTED = 3
 605 };
 606
 607 inline STV
 608 elf_st_visibility(unsigned char other)
 609 {
 610   return static_cast<STV>(other & 0x3);
 611 }
 612
 613 inline unsigned char
 614 elf_st_nonvis(unsigned char other)
 615 {
 616   return static_cast<STV>(other >> 2);
 617 }
 618
 619 inline unsigned char
 620 elf_st_other(STV vis, unsigned char nonvis)
 621 {
 622   return ((nonvis << 2)
 623           + (static_cast<unsigned char>(vis) & 3));
 624 }
 625
 626 // Reloc information from Rel/Rela r_info field.
 627
 628 template<int size>
 629 unsigned int
 630 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 631
 632 template<>
 633 inline unsigned int
 634 elf_r_sym<32>(Elf_Word v)
 635 {
 636   return v >> 8;
 637 }
 638
 639 template<>
 640 inline unsigned int
 641 elf_r_sym<64>(Elf_Xword v)
 642 {
 643   return v >> 32;
 644 }
 645
 646 template<int size>
 647 unsigned int
 648 elf_r_type(typename Elf_types<size>::Elf_WXword);
 649
 650 template<>
 651 inline unsigned int
 652 elf_r_type<32>(Elf_Word v)
 653 {
 654   return v & 0xff;
 655 }
 656
 657 template<>
 658 inline unsigned int
 659 elf_r_type<64>(Elf_Xword v)
 660 {
 661   return v & 0xffffffff;
 662 }
 663
 664 template<int size>
 665 typename Elf_types<size>::Elf_WXword
 666 elf_r_info(unsigned int s, unsigned int t);
 667
 668 template<>
 669 inline Elf_Word
 670 elf_r_info<32>(unsigned int s, unsigned int t)
 671 {
 672   return (s << 8) + (t & 0xff);
 673 }
 674
 675 template<>
 676 inline Elf_Xword
 677 elf_r_info<64>(unsigned int s, unsigned int t)
 678 {
 679   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 680 }
 681
 682 // Dynamic tags found in the PT_DYNAMIC segment.
 683
 684 enum DT
 685 {
 686   DT_NULL = 0,
 687   DT_NEEDED = 1,
 688   DT_PLTRELSZ = 2,
 689   DT_PLTGOT = 3,
 690   DT_HASH = 4,
 691   DT_STRTAB = 5,
 692   DT_SYMTAB = 6,
 693   DT_RELA = 7,
 694   DT_RELASZ = 8,
 695   DT_RELAENT = 9,
 696   DT_STRSZ = 10,
 697   DT_SYMENT = 11,
 698   DT_INIT = 12,
 699   DT_FINI = 13,
 700   DT_SONAME = 14,
 701   DT_RPATH = 15,
 702   DT_SYMBOLIC = 16,
 703   DT_REL = 17,
 704   DT_RELSZ = 18,
 705   DT_RELENT = 19,
 706   DT_PLTREL = 20,
 707   DT_DEBUG = 21,
 708   DT_TEXTREL = 22,
 709   DT_JMPREL = 23,
 710   DT_BIND_NOW = 24,
 711   DT_INIT_ARRAY = 25,
 712   DT_FINI_ARRAY = 26,
 713   DT_INIT_ARRAYSZ = 27,
 714   DT_FINI_ARRAYSZ = 28,
 715   DT_RUNPATH = 29,
 716   DT_FLAGS = 30,
 717
 718   // This is used to mark a range of dynamic tags.  It is not really
 719   // a tag value.
 720   DT_ENCODING = 32,
 721
 722   DT_PREINIT_ARRAY = 32,
 723   DT_PREINIT_ARRAYSZ = 33,
 724   DT_LOOS = 0x6000000d,
 725   DT_HIOS = 0x6ffff000,
 726   DT_LOPROC = 0x70000000,
 727   DT_HIPROC = 0x7fffffff,
 728
 729   // The remaining values are extensions used by GNU or Solaris.
 730   DT_VALRNGLO = 0x6ffffd00,
 731   DT_GNU_PRELINKED = 0x6ffffdf5,
 732   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 733   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 734   DT_CHECKSUM = 0x6ffffdf8,
 735   DT_PLTPADSZ = 0x6ffffdf9,
 736   DT_MOVEENT = 0x6ffffdfa,
 737   DT_MOVESZ = 0x6ffffdfb,
 738   DT_FEATURE = 0x6ffffdfc,
 739   DT_POSFLAG_1 = 0x6ffffdfd,
 740   DT_SYMINSZ = 0x6ffffdfe,
 741   DT_SYMINENT = 0x6ffffdff,
 742   DT_VALRNGHI = 0x6ffffdff,
 743
 744   DT_ADDRRNGLO = 0x6ffffe00,
 745   DT_GNU_HASH = 0x6ffffef5,
 746   DT_TLSDESC_PLT = 0x6ffffef6,
 747   DT_TLSDESC_GOT = 0x6ffffef7,
 748   DT_GNU_CONFLICT = 0x6ffffef8,
 749   DT_GNU_LIBLIST = 0x6ffffef9,
 750   DT_CONFIG = 0x6ffffefa,
 751   DT_DEPAUDIT = 0x6ffffefb,
 752   DT_AUDIT = 0x6ffffefc,
 753   DT_PLTPAD = 0x6ffffefd,
 754   DT_MOVETAB = 0x6ffffefe,
 755   DT_SYMINFO = 0x6ffffeff,
 756   DT_ADDRRNGHI = 0x6ffffeff,
 757
 758   DT_RELACOUNT = 0x6ffffff9,
 759   DT_RELCOUNT = 0x6ffffffa,
 760   DT_FLAGS_1 = 0x6ffffffb,
 761   DT_VERDEF = 0x6ffffffc,
 762   DT_VERDEFNUM = 0x6ffffffd,
 763   DT_VERNEED = 0x6ffffffe,
 764   DT_VERNEEDNUM = 0x6fffffff,
 765
 766   DT_VERSYM = 0x6ffffff0,
 767
 768   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 769   DT_PPC_GOT = 0x70000000,
 770
 771   // Specify the start of the .glink section.
 772   DT_PPC64_GLINK = 0x70000000,
 773
 774   // Specify the start and size of the .opd section.
 775   DT_PPC64_OPD = 0x70000001,
 776   DT_PPC64_OPDSZ = 0x70000002,
 777
 778   // Specify whether various optimisations are possible.
 779   DT_PPC64_OPT = 0x70000003,
 780
 781   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 782   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 783   // symbol in the symbol table.
 784   DT_SPARC_REGISTER = 0x70000001,
 785
 786   // MIPS specific dynamic array tags.
 787   // 32 bit version number for runtime linker interface.
 788   DT_MIPS_RLD_VERSION = 0x70000001,
 789   // Time stamp.
 790   DT_MIPS_TIME_STAMP = 0x70000002,
 791   // Checksum of external strings and common sizes.
 792   DT_MIPS_ICHECKSUM = 0x70000003,
 793   // Index of version string in string table.
 794   DT_MIPS_IVERSION = 0x70000004,
 795   // 32 bits of flags.
 796   DT_MIPS_FLAGS = 0x70000005,
 797   // Base address of the segment.
 798   DT_MIPS_BASE_ADDRESS = 0x70000006,
 799   // ???
 800   DT_MIPS_MSYM = 0x70000007,
 801   // Address of .conflict section.
 802   DT_MIPS_CONFLICT = 0x70000008,
 803   // Address of .liblist section.
 804   DT_MIPS_LIBLIST = 0x70000009,
 805   // Number of local global offset table entries.
 806   DT_MIPS_LOCAL_GOTNO = 0x7000000a,
 807   // Number of entries in the .conflict section.
 808   DT_MIPS_CONFLICTNO = 0x7000000b,
 809   // Number of entries in the .liblist section.
 810   DT_MIPS_LIBLISTNO = 0x70000010,
 811   // Number of entries in the .dynsym section.
 812   DT_MIPS_SYMTABNO = 0x70000011,
 813   // Index of first external dynamic symbol not referenced locally.
 814   DT_MIPS_UNREFEXTNO = 0x70000012,
 815   // Index of first dynamic symbol in global offset table.
 816   DT_MIPS_GOTSYM = 0x70000013,
 817   // Number of page table entries in global offset table.
 818   DT_MIPS_HIPAGENO = 0x70000014,
 819   // Address of run time loader map, used for debugging.
 820   DT_MIPS_RLD_MAP = 0x70000016,
 821   // Delta C++ class definition.
 822   DT_MIPS_DELTA_CLASS = 0x70000017,
 823   // Number of entries in DT_MIPS_DELTA_CLASS.
 824   DT_MIPS_DELTA_CLASS_NO = 0x70000018,
 825   // Delta C++ class instances.
 826   DT_MIPS_DELTA_INSTANCE = 0x70000019,
 827   // Number of entries in DT_MIPS_DELTA_INSTANCE.
 828   DT_MIPS_DELTA_INSTANCE_NO = 0x7000001a,
 829   // Delta relocations.
 830   DT_MIPS_DELTA_RELOC = 0x7000001b,
 831   // Number of entries in DT_MIPS_DELTA_RELOC.
 832   DT_MIPS_DELTA_RELOC_NO = 0x7000001c,
 833   // Delta symbols that Delta relocations refer to.
 834   DT_MIPS_DELTA_SYM = 0x7000001d,
 835   // Number of entries in DT_MIPS_DELTA_SYM.
 836   DT_MIPS_DELTA_SYM_NO = 0x7000001e,
 837   // Delta symbols that hold class declarations.
 838   DT_MIPS_DELTA_CLASSSYM = 0x70000020,
 839   // Number of entries in DT_MIPS_DELTA_CLASSSYM.
 840   DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021,
 841   // Flags indicating information about C++ flavor.
 842   DT_MIPS_CXX_FLAGS = 0x70000022,
 843   // Pixie information (???).
 844   DT_MIPS_PIXIE_INIT = 0x70000023,
 845   // Address of .MIPS.symlib
 846   DT_MIPS_SYMBOL_LIB = 0x70000024,
 847   // The GOT index of the first PTE for a segment
 848   DT_MIPS_LOCALPAGE_GOTIDX = 0x70000025,
 849   // The GOT index of the first PTE for a local symbol
 850   DT_MIPS_LOCAL_GOTIDX = 0x70000026,
 851   // The GOT index of the first PTE for a hidden symbol
 852   DT_MIPS_HIDDEN_GOTIDX = 0x70000027,
 853   // The GOT index of the first PTE for a protected symbol
 854   DT_MIPS_PROTECTED_GOTIDX = 0x70000028,
 855   // Address of `.MIPS.options'.
 856   DT_MIPS_OPTIONS = 0x70000029,
 857   // Address of `.interface'.
 858   DT_MIPS_INTERFACE = 0x7000002a,
 859   // ???
 860   DT_MIPS_DYNSTR_ALIGN = 0x7000002b,
 861   // Size of the .interface section.
 862   DT_MIPS_INTERFACE_SIZE = 0x7000002c,
 863   // Size of rld_text_resolve function stored in the GOT.
 864   DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002d,
 865   // Default suffix of DSO to be added by rld on dlopen() calls.
 866   DT_MIPS_PERF_SUFFIX = 0x7000002e,
 867   // Size of compact relocation section (O32).
 868   DT_MIPS_COMPACT_SIZE = 0x7000002f,
 869   // GP value for auxiliary GOTs.
 870   DT_MIPS_GP_VALUE = 0x70000030,
 871   // Address of auxiliary .dynamic.
 872   DT_MIPS_AUX_DYNAMIC = 0x70000031,
 873   // Address of the base of the PLTGOT.
 874   DT_MIPS_PLTGOT = 0x70000032,
 875   // Points to the base of a writable PLT.
 876   DT_MIPS_RWPLT = 0x70000034,
 877   // Relative offset of run time loader map, used for debugging.
 878   DT_MIPS_RLD_MAP_REL = 0x70000035,
 879
 880   DT_AUXILIARY = 0x7ffffffd,
 881   DT_USED = 0x7ffffffe,
 882   DT_FILTER = 0x7fffffff
 883 };
 884
 885 // Flags found in the DT_FLAGS dynamic element.
 886
 887 enum DF
 888 {
 889   DF_ORIGIN = 0x1,
 890   DF_SYMBOLIC = 0x2,
 891   DF_TEXTREL = 0x4,
 892   DF_BIND_NOW = 0x8,
 893   DF_STATIC_TLS = 0x10
 894 };
 895
 896 // Flags found in the DT_FLAGS_1 dynamic element.
 897
 898 enum DF_1
 899 {
 900   DF_1_NOW = 0x1,
 901   DF_1_GLOBAL = 0x2,
 902   DF_1_GROUP = 0x4,
 903   DF_1_NODELETE = 0x8,
 904   DF_1_LOADFLTR = 0x10,
 905   DF_1_INITFIRST = 0x20,
 906   DF_1_NOOPEN = 0x40,
 907   DF_1_ORIGIN = 0x80,
 908   DF_1_DIRECT = 0x100,
 909   DF_1_TRANS = 0x200,
 910   DF_1_INTERPOSE = 0x400,
 911   DF_1_NODEFLIB = 0x800,
 912   DF_1_NODUMP = 0x1000,
 913   DF_1_CONLFAT = 0x2000
 914 };
 915
 916 // Version numbers which appear in the vd_version field of a Verdef
 917 // structure.
 918
 919 const int VER_DEF_NONE = 0;
 920 const int VER_DEF_CURRENT = 1;
 921
 922 // Version numbers which appear in the vn_version field of a Verneed
 923 // structure.
 924
 925 const int VER_NEED_NONE = 0;
 926 const int VER_NEED_CURRENT = 1;
 927
 928 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 929 // Vernaux.
 930
 931 const int VER_FLG_BASE = 0x1;
 932 const int VER_FLG_WEAK = 0x2;
 933 const int VER_FLG_INFO = 0x4;
 934
 935 // Special constants found in the SHT_GNU_versym entries.
 936
 937 const int VER_NDX_LOCAL = 0;
 938 const int VER_NDX_GLOBAL = 1;
 939
 940 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 941 // the symbol is hidden and can only be seen when referenced using an
 942 // explicit version number.  This is a GNU extension.
 943
 944 const int VERSYM_HIDDEN = 0x8000;
 945
 946 // This is the mask for the rest of the data in a word read from a
 947 // SHT_GNU_versym section.
 948
 949 const int VERSYM_VERSION = 0x7fff;
 950
 951 // Note descriptor type codes for notes in a non-core file with an
 952 // empty name.
 953
 954 enum
 955 {
 956   // A version string.
 957   NT_VERSION = 1,
 958   // An architecture string.
 959   NT_ARCH = 2
 960 };
 961
 962 // Note descriptor type codes for notes in a non-core file with the
 963 // name "GNU".
 964
 965 enum
 966 {
 967   // The minimum ABI level.  This is used by the dynamic linker to
 968   // describe the minimal kernel version on which a shared library may
 969   // be used.  Th value should be four words.  Word 0 is an OS
 970   // descriptor (see below).  Word 1 is the major version of the ABI.
 971   // Word 2 is the minor version.  Word 3 is the subminor version.
 972   NT_GNU_ABI_TAG = 1,
 973   // Hardware capabilities information.  Word 0 is the number of
 974   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 975   // the descriptor is a series of entries, where each entry is a
 976   // single byte followed by a nul terminated string.  The byte gives
 977   // the bit number to test if enabled in the bitmask.
 978   NT_GNU_HWCAP = 2,
 979   // The build ID as set by the linker's --build-id option.  The
 980   // format of the descriptor depends on the build ID style.
 981   NT_GNU_BUILD_ID = 3,
 982   // The version of gold used to link.  Th descriptor is just a
 983   // string.
 984   NT_GNU_GOLD_VERSION = 4
 985 };
 986
 987 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 988
 989 enum
 990 {
 991   ELF_NOTE_OS_LINUX = 0,
 992   ELF_NOTE_OS_GNU = 1,
 993   ELF_NOTE_OS_SOLARIS2 = 2,
 994   ELF_NOTE_OS_FREEBSD = 3,
 995   ELF_NOTE_OS_NETBSD = 4,
 996   ELF_NOTE_OS_SYLLABLE = 5
 997 };
 998
 999 } // End namespace elfcpp.
1000
1001 // Include internal details after defining the types.
1002 #include "elfcpp_internal.h"
1003
1004 namespace elfcpp
1005 {
1006
1007 // The offset of the ELF file header in the ELF file.
1008
1009 const int file_header_offset = 0;
1010
1011 // ELF structure sizes.
1012
1013 template<int size>
1014 struct Elf_sizes
1015 {
1016   // Size of ELF file header.
1017   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
1018   // Size of ELF segment header.
1019   static const int phdr_size = sizeof(internal::Phdr_data<size>);
1020   // Size of ELF section header.
1021   static const int shdr_size = sizeof(internal::Shdr_data<size>);
1022   // Size of ELF compression header.
1023   static const int chdr_size = sizeof(internal::Chdr_data<size>);
1024   // Size of ELF symbol table entry.
1025   static const int sym_size = sizeof(internal::Sym_data<size>);
1026   // Sizes of ELF reloc entries.
1027   static const int rel_size = sizeof(internal::Rel_data<size>);
1028   static const int rela_size = sizeof(internal::Rela_data<size>);
1029   // Size of ELF dynamic entry.
1030   static const int dyn_size = sizeof(internal::Dyn_data<size>);
1031   // Size of ELF version structures.
1032   static const int verdef_size = sizeof(internal::Verdef_data);
1033   static const int verdaux_size = sizeof(internal::Verdaux_data);
1034   static const int verneed_size = sizeof(internal::Verneed_data);
1035   static const int vernaux_size = sizeof(internal::Vernaux_data);
1036 };
1037
1038 // Accessor class for the ELF file header.
1039
1040 template<int size, bool big_endian>
1041 class Ehdr
1042 {
1043  public:
1044   Ehdr(const unsigned char* p)
1045     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
1046   { }
1047
1048   template<typename File>
1049   Ehdr(File* file, typename File::Location loc)
1050     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
1051            file->view(loc.file_offset, loc.data_size).data()))
1052   { }
1053
1054   const unsigned char*
1055   get_e_ident() const
1056   { return this->p_->e_ident; }
1057
1058   Elf_Half
1059   get_e_type() const
1060   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
1061
1062   Elf_Half
1063   get_e_machine() const
1064   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
1065
1066   Elf_Word
1067   get_e_version() const
1068   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
1069
1070   typename Elf_types<size>::Elf_Addr
1071   get_e_entry() const
1072   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
1073
1074   typename Elf_types<size>::Elf_Off
1075   get_e_phoff() const
1076   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
1077
1078   typename Elf_types<size>::Elf_Off
1079   get_e_shoff() const
1080   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
1081
1082   Elf_Word
1083   get_e_flags() const
1084   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
1085
1086   Elf_Half
1087   get_e_ehsize() const
1088   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
1089
1090   Elf_Half
1091   get_e_phentsize() const
1092   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
1093
1094   Elf_Half
1095   get_e_phnum() const
1096   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
1097
1098   Elf_Half
1099   get_e_shentsize() const
1100   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
1101
1102   Elf_Half
1103   get_e_shnum() const
1104   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
1105
1106   Elf_Half
1107   get_e_shstrndx() const
1108   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
1109
1110  private:
1111   const internal::Ehdr_data<size>* p_;
1112 };
1113
1114 // Write class for the ELF file header.
1115
1116 template<int size, bool big_endian>
1117 class Ehdr_write
1118 {
1119  public:
1120   Ehdr_write(unsigned char* p)
1121     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
1122   { }
1123
1124   void
1125   put_e_ident(const unsigned char v[EI_NIDENT]) const
1126   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
1127
1128   void
1129   put_e_type(Elf_Half v)
1130   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
1131
1132   void
1133   put_e_machine(Elf_Half v)
1134   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
1135
1136   void
1137   put_e_version(Elf_Word v)
1138   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
1139
1140   void
1141   put_e_entry(typename Elf_types<size>::Elf_Addr v)
1142   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
1143
1144   void
1145   put_e_phoff(typename Elf_types<size>::Elf_Off v)
1146   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
1147
1148   void
1149   put_e_shoff(typename Elf_types<size>::Elf_Off v)
1150   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
1151
1152   void
1153   put_e_flags(Elf_Word v)
1154   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
1155
1156   void
1157   put_e_ehsize(Elf_Half v)
1158   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
1159
1160   void
1161   put_e_phentsize(Elf_Half v)
1162   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
1163
1164   void
1165   put_e_phnum(Elf_Half v)
1166   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
1167
1168   void
1169   put_e_shentsize(Elf_Half v)
1170   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
1171
1172   void
1173   put_e_shnum(Elf_Half v)
1174   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
1175
1176   void
1177   put_e_shstrndx(Elf_Half v)
1178   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
1179
1180  private:
1181   internal::Ehdr_data<size>* p_;
1182 };
1183
1184 // Accessor class for an ELF section header.
1185
1186 template<int size, bool big_endian>
1187 class Shdr
1188 {
1189  public:
1190   Shdr(const unsigned char* p)
1191     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
1192   { }
1193
1194   template<typename File>
1195   Shdr(File* file, typename File::Location loc)
1196     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1197            file->view(loc.file_offset, loc.data_size).data()))
1198   { }
1199
1200   Elf_Word
1201   get_sh_name() const
1202   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1203
1204   Elf_Word
1205   get_sh_type() const
1206   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1207
1208   typename Elf_types<size>::Elf_WXword
1209   get_sh_flags() const
1210   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1211
1212   typename Elf_types<size>::Elf_Addr
1213   get_sh_addr() const
1214   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1215
1216   typename Elf_types<size>::Elf_Off
1217   get_sh_offset() const
1218   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1219
1220   typename Elf_types<size>::Elf_WXword
1221   get_sh_size() const
1222   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1223
1224   Elf_Word
1225   get_sh_link() const
1226   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1227
1228   Elf_Word
1229   get_sh_info() const
1230   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1231
1232   typename Elf_types<size>::Elf_WXword
1233   get_sh_addralign() const
1234   { return
1235       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1236
1237   typename Elf_types<size>::Elf_WXword
1238   get_sh_entsize() const
1239   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1240
1241  private:
1242   const internal::Shdr_data<size>* p_;
1243 };
1244
1245 // Write class for an ELF section header.
1246
1247 template<int size, bool big_endian>
1248 class Shdr_write
1249 {
1250  public:
1251   Shdr_write(unsigned char* p)
1252     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1253   { }
1254
1255   void
1256   put_sh_name(Elf_Word v)
1257   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1258
1259   void
1260   put_sh_type(Elf_Word v)
1261   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1262
1263   void
1264   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1265   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1266
1267   void
1268   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1269   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1270
1271   void
1272   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1273   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1274
1275   void
1276   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1277   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1278
1279   void
1280   put_sh_link(Elf_Word v)
1281   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1282
1283   void
1284   put_sh_info(Elf_Word v)
1285   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1286
1287   void
1288   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1289   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1290
1291   void
1292   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1293   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1294
1295  private:
1296   internal::Shdr_data<size>* p_;
1297 };
1298
1299 // Accessor class for an ELF compression header.
1300
1301 template<int size, bool big_endian>
1302 class Chdr
1303 {
1304  public:
1305   Chdr(const unsigned char* p)
1306     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(p))
1307   { }
1308
1309   template<typename File>
1310   Chdr(File* file, typename File::Location loc)
1311     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(
1312            file->view(loc.file_offset, loc.data_size).data()))
1313   { }
1314
1315   Elf_Word
1316   get_ch_type() const
1317   { return Convert<size, big_endian>::convert_host(this->p_->ch_type); }
1318
1319   typename Elf_types<size>::Elf_WXword
1320   get_ch_size() const
1321   { return Convert<size, big_endian>::convert_host(this->p_->ch_size); }
1322
1323   typename Elf_types<size>::Elf_WXword
1324   get_ch_addralign() const
1325   { return
1326       Convert<size, big_endian>::convert_host(this->p_->ch_addralign); }
1327
1328  private:
1329   const internal::Chdr_data<size>* p_;
1330 };
1331
1332 // Write class for an ELF compression header.
1333
1334 template<int size, bool big_endian>
1335 class Chdr_write
1336 {
1337  public:
1338   Chdr_write(unsigned char* p)
1339     : p_(reinterpret_cast<internal::Chdr_data<size>*>(p))
1340   { }
1341
1342   void
1343   put_ch_type(typename Elf_types<size>::Elf_WXword v)
1344   { this->p_->ch_type = Convert<size, big_endian>::convert_host(v); }
1345
1346   void
1347   put_ch_size(typename Elf_types<size>::Elf_WXword v)
1348   { this->p_->ch_size = Convert<size, big_endian>::convert_host(v); }
1349
1350   void
1351   put_ch_addralign(typename Elf_types<size>::Elf_WXword v)
1352   { this->p_->ch_addralign = Convert<size, big_endian>::convert_host(v); }
1353
1354   void
1355   put_ch_reserved(Elf_Word);
1356
1357  private:
1358   internal::Chdr_data<size>* p_;
1359 };
1360
1361 template<>
1362 inline void
1363 elfcpp::Chdr_write<64, true>::put_ch_reserved(Elf_Word v)
1364 {
1365   this->p_->ch_reserved = v;
1366 }
1367
1368 template<>
1369 inline void
1370 elfcpp::Chdr_write<64, false>::put_ch_reserved(Elf_Word v)
1371 {
1372   this->p_->ch_reserved = v;
1373 }
1374
1375 // Accessor class for an ELF segment header.
1376
1377 template<int size, bool big_endian>
1378 class Phdr
1379 {
1380  public:
1381   Phdr(const unsigned char* p)
1382     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1383   { }
1384
1385   template<typename File>
1386   Phdr(File* file, typename File::Location loc)
1387     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1388            file->view(loc.file_offset, loc.data_size).data()))
1389   { }
1390
1391   Elf_Word
1392   get_p_type() const
1393   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1394
1395   typename Elf_types<size>::Elf_Off
1396   get_p_offset() const
1397   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1398
1399   typename Elf_types<size>::Elf_Addr
1400   get_p_vaddr() const
1401   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1402
1403   typename Elf_types<size>::Elf_Addr
1404   get_p_paddr() const
1405   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1406
1407   typename Elf_types<size>::Elf_WXword
1408   get_p_filesz() const
1409   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1410
1411   typename Elf_types<size>::Elf_WXword
1412   get_p_memsz() const
1413   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1414
1415   Elf_Word
1416   get_p_flags() const
1417   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1418
1419   typename Elf_types<size>::Elf_WXword
1420   get_p_align() const
1421   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1422
1423  private:
1424   const internal::Phdr_data<size>* p_;
1425 };
1426
1427 // Write class for an ELF segment header.
1428
1429 template<int size, bool big_endian>
1430 class Phdr_write
1431 {
1432  public:
1433   Phdr_write(unsigned char* p)
1434     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1435   { }
1436
1437   void
1438   put_p_type(Elf_Word v)
1439   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1440
1441   void
1442   put_p_offset(typename Elf_types<size>::Elf_Off v)
1443   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1444
1445   void
1446   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1447   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1448
1449   void
1450   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1451   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1452
1453   void
1454   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1455   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1456
1457   void
1458   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1459   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1460
1461   void
1462   put_p_flags(Elf_Word v)
1463   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1464
1465   void
1466   put_p_align(typename Elf_types<size>::Elf_WXword v)
1467   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1468
1469  private:
1470   internal::Phdr_data<size>* p_;
1471 };
1472
1473 // Accessor class for an ELF symbol table entry.
1474
1475 template<int size, bool big_endian>
1476 class Sym
1477 {
1478  public:
1479   Sym(const unsigned char* p)
1480     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1481   { }
1482
1483   template<typename File>
1484   Sym(File* file, typename File::Location loc)
1485     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1486            file->view(loc.file_offset, loc.data_size).data()))
1487   { }
1488
1489   Elf_Word
1490   get_st_name() const
1491   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1492
1493   typename Elf_types<size>::Elf_Addr
1494   get_st_value() const
1495   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1496
1497   typename Elf_types<size>::Elf_WXword
1498   get_st_size() const
1499   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1500
1501   unsigned char
1502   get_st_info() const
1503   { return this->p_->st_info; }
1504
1505   STB
1506   get_st_bind() const
1507   { return elf_st_bind(this->get_st_info()); }
1508
1509   STT
1510   get_st_type() const
1511   { return elf_st_type(this->get_st_info()); }
1512
1513   unsigned char
1514   get_st_other() const
1515   { return this->p_->st_other; }
1516
1517   STV
1518   get_st_visibility() const
1519   { return elf_st_visibility(this->get_st_other()); }
1520
1521   unsigned char
1522   get_st_nonvis() const
1523   { return elf_st_nonvis(this->get_st_other()); }
1524
1525   Elf_Half
1526   get_st_shndx() const
1527   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1528
1529  private:
1530   const internal::Sym_data<size>* p_;
1531 };
1532
1533 // Writer class for an ELF symbol table entry.
1534
1535 template<int size, bool big_endian>
1536 class Sym_write
1537 {
1538  public:
1539   Sym_write(unsigned char* p)
1540     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1541   { }
1542
1543   void
1544   put_st_name(Elf_Word v)
1545   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1546
1547   void
1548   put_st_value(typename Elf_types<size>::Elf_Addr v)
1549   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1550
1551   void
1552   put_st_size(typename Elf_types<size>::Elf_WXword v)
1553   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1554
1555   void
1556   put_st_info(unsigned char v)
1557   { this->p_->st_info = v; }
1558
1559   void
1560   put_st_info(STB bind, STT type)
1561   { this->p_->st_info = elf_st_info(bind, type); }
1562
1563   void
1564   put_st_other(unsigned char v)
1565   { this->p_->st_other = v; }
1566
1567   void
1568   put_st_other(STV vis, unsigned char nonvis)
1569   { this->p_->st_other = elf_st_other(vis, nonvis); }
1570
1571   void
1572   put_st_shndx(Elf_Half v)
1573   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1574
1575   Sym<size, big_endian>
1576   sym()
1577   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1578
1579  private:
1580   internal::Sym_data<size>* p_;
1581 };
1582
1583 // Accessor classes for an ELF REL relocation entry.
1584
1585 template<int size, bool big_endian>
1586 class Rel
1587 {
1588  public:
1589   Rel(const unsigned char* p)
1590     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1591   { }
1592
1593   template<typename File>
1594   Rel(File* file, typename File::Location loc)
1595     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1596            file->view(loc.file_offset, loc.data_size).data()))
1597   { }
1598
1599   typename Elf_types<size>::Elf_Addr
1600   get_r_offset() const
1601   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1602
1603   typename Elf_types<size>::Elf_WXword
1604   get_r_info() const
1605   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1606
1607  private:
1608   const internal::Rel_data<size>* p_;
1609 };
1610
1611 // Writer class for an ELF Rel relocation.
1612
1613 template<int size, bool big_endian>
1614 class Rel_write
1615 {
1616  public:
1617   Rel_write(unsigned char* p)
1618     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1619   { }
1620
1621   void
1622   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1623   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1624
1625   void
1626   put_r_info(typename Elf_types<size>::Elf_WXword v)
1627   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1628
1629  private:
1630   internal::Rel_data<size>* p_;
1631 };
1632
1633 // Accessor class for an ELF Rela relocation.
1634
1635 template<int size, bool big_endian>
1636 class Rela
1637 {
1638  public:
1639   Rela(const unsigned char* p)
1640     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1641   { }
1642
1643   template<typename File>
1644   Rela(File* file, typename File::Location loc)
1645     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1646            file->view(loc.file_offset, loc.data_size).data()))
1647   { }
1648
1649   typename Elf_types<size>::Elf_Addr
1650   get_r_offset() const
1651   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1652
1653   typename Elf_types<size>::Elf_WXword
1654   get_r_info() const
1655   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1656
1657   typename Elf_types<size>::Elf_Swxword
1658   get_r_addend() const
1659   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1660
1661  private:
1662   const internal::Rela_data<size>* p_;
1663 };
1664
1665 // Writer class for an ELF Rela relocation.
1666
1667 template<int size, bool big_endian>
1668 class Rela_write
1669 {
1670  public:
1671   Rela_write(unsigned char* p)
1672     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1673   { }
1674
1675   void
1676   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1677   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1678
1679   void
1680   put_r_info(typename Elf_types<size>::Elf_WXword v)
1681   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1682
1683   void
1684   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1685   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1686
1687  private:
1688   internal::Rela_data<size>* p_;
1689 };
1690
1691 // MIPS-64 has a non-standard relocation layout.
1692
1693 template<bool big_endian>
1694 class Mips64_rel
1695 {
1696  public:
1697   Mips64_rel(const unsigned char* p)
1698     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(p))
1699   { }
1700
1701   template<typename File>
1702   Mips64_rel(File* file, typename File::Location loc)
1703     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(
1704            file->view(loc.file_offset, loc.data_size).data()))
1705   { }
1706
1707   typename Elf_types<64>::Elf_Addr
1708   get_r_offset() const
1709   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1710
1711   Elf_Word
1712   get_r_sym() const
1713   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1714
1715   unsigned char
1716   get_r_ssym() const
1717   { return this->p_->r_ssym; }
1718
1719   unsigned char
1720   get_r_type() const
1721   { return this->p_->r_type; }
1722
1723   unsigned char
1724   get_r_type2() const
1725   { return this->p_->r_type2; }
1726
1727   unsigned char
1728   get_r_type3() const
1729   { return this->p_->r_type3; }
1730
1731  private:
1732   const internal::Mips64_rel_data* p_;
1733 };
1734
1735 template<bool big_endian>
1736 class Mips64_rel_write
1737 {
1738  public:
1739   Mips64_rel_write(unsigned char* p)
1740     : p_(reinterpret_cast<internal::Mips64_rel_data*>(p))
1741   { }
1742
1743   void
1744   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1745   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1746
1747   void
1748   put_r_sym(Elf_Word v)
1749   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1750
1751   void
1752   put_r_ssym(unsigned char v)
1753   { this->p_->r_ssym = v; }
1754
1755   void
1756   put_r_type(unsigned char v)
1757   { this->p_->r_type = v; }
1758
1759   void
1760   put_r_type2(unsigned char v)
1761   { this->p_->r_type2 = v; }
1762
1763   void
1764   put_r_type3(unsigned char v)
1765   { this->p_->r_type3 = v; }
1766
1767  private:
1768   internal::Mips64_rel_data* p_;
1769 };
1770
1771 template<bool big_endian>
1772 class Mips64_rela
1773 {
1774  public:
1775   Mips64_rela(const unsigned char* p)
1776     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(p))
1777   { }
1778
1779   template<typename File>
1780   Mips64_rela(File* file, typename File::Location loc)
1781     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(
1782            file->view(loc.file_offset, loc.data_size).data()))
1783   { }
1784
1785   typename Elf_types<64>::Elf_Addr
1786   get_r_offset() const
1787   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1788
1789   Elf_Word
1790   get_r_sym() const
1791   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1792
1793   unsigned char
1794   get_r_ssym() const
1795   { return this->p_->r_ssym; }
1796
1797   unsigned char
1798   get_r_type() const
1799   { return this->p_->r_type; }
1800
1801   unsigned char
1802   get_r_type2() const
1803   { return this->p_->r_type2; }
1804
1805   unsigned char
1806   get_r_type3() const
1807   { return this->p_->r_type3; }
1808
1809   typename Elf_types<64>::Elf_Swxword
1810   get_r_addend() const
1811   { return Convert<64, big_endian>::convert_host(this->p_->r_addend); }
1812
1813  private:
1814   const internal::Mips64_rela_data* p_;
1815 };
1816
1817 template<bool big_endian>
1818 class Mips64_rela_write
1819 {
1820  public:
1821   Mips64_rela_write(unsigned char* p)
1822     : p_(reinterpret_cast<internal::Mips64_rela_data*>(p))
1823   { }
1824
1825   void
1826   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1827   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1828
1829   void
1830   put_r_sym(Elf_Word v)
1831   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1832
1833   void
1834   put_r_ssym(unsigned char v)
1835   { this->p_->r_ssym = v; }
1836
1837   void
1838   put_r_type(unsigned char v)
1839   { this->p_->r_type = v; }
1840
1841   void
1842   put_r_type2(unsigned char v)
1843   { this->p_->r_type2 = v; }
1844
1845   void
1846   put_r_type3(unsigned char v)
1847   { this->p_->r_type3 = v; }
1848
1849   void
1850   put_r_addend(typename Elf_types<64>::Elf_Swxword v)
1851   { this->p_->r_addend = Convert<64, big_endian>::convert_host(v); }
1852
1853  private:
1854   internal::Mips64_rela_data* p_;
1855 };
1856
1857 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1858 // PT_DYNAMIC segment.
1859
1860 template<int size, bool big_endian>
1861 class Dyn
1862 {
1863  public:
1864   Dyn(const unsigned char* p)
1865     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1866   { }
1867
1868   template<typename File>
1869   Dyn(File* file, typename File::Location loc)
1870     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1871            file->view(loc.file_offset, loc.data_size).data()))
1872   { }
1873
1874   typename Elf_types<size>::Elf_Swxword
1875   get_d_tag() const
1876   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1877
1878   typename Elf_types<size>::Elf_WXword
1879   get_d_val() const
1880   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1881
1882   typename Elf_types<size>::Elf_Addr
1883   get_d_ptr() const
1884   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1885
1886  private:
1887   const internal::Dyn_data<size>* p_;
1888 };
1889
1890 // Write class for an entry in the SHT_DYNAMIC section.
1891
1892 template<int size, bool big_endian>
1893 class Dyn_write
1894 {
1895  public:
1896   Dyn_write(unsigned char* p)
1897     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1898   { }
1899
1900   void
1901   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1902   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1903
1904   void
1905   put_d_val(typename Elf_types<size>::Elf_WXword v)
1906   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1907
1908   void
1909   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1910   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1911
1912  private:
1913   internal::Dyn_data<size>* p_;
1914 };
1915
1916 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1917
1918 template<int size, bool big_endian>
1919 class Verdef
1920 {
1921  public:
1922   Verdef(const unsigned char* p)
1923     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1924   { }
1925
1926   template<typename File>
1927   Verdef(File* file, typename File::Location loc)
1928     : p_(reinterpret_cast<const internal::Verdef_data*>(
1929            file->view(loc.file_offset, loc.data_size).data()))
1930   { }
1931
1932   Elf_Half
1933   get_vd_version() const
1934   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1935
1936   Elf_Half
1937   get_vd_flags() const
1938   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1939
1940   Elf_Half
1941   get_vd_ndx() const
1942   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1943
1944   Elf_Half
1945   get_vd_cnt() const
1946   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1947
1948   Elf_Word
1949   get_vd_hash() const
1950   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1951
1952   Elf_Word
1953   get_vd_aux() const
1954   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1955
1956   Elf_Word
1957   get_vd_next() const
1958   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1959
1960  private:
1961   const internal::Verdef_data* p_;
1962 };
1963
1964 template<int size, bool big_endian>
1965 class Verdef_write
1966 {
1967  public:
1968   Verdef_write(unsigned char* p)
1969     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1970   { }
1971
1972   void
1973   set_vd_version(Elf_Half v)
1974   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1975
1976   void
1977   set_vd_flags(Elf_Half v)
1978   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1979
1980   void
1981   set_vd_ndx(Elf_Half v)
1982   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1983
1984   void
1985   set_vd_cnt(Elf_Half v)
1986   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1987
1988   void
1989   set_vd_hash(Elf_Word v)
1990   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1991
1992   void
1993   set_vd_aux(Elf_Word v)
1994   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1995
1996   void
1997   set_vd_next(Elf_Word v)
1998   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1999
2000  private:
2001   internal::Verdef_data* p_;
2002 };
2003
2004 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
2005 // section.
2006
2007 template<int size, bool big_endian>
2008 class Verdaux
2009 {
2010  public:
2011   Verdaux(const unsigned char* p)
2012     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
2013   { }
2014
2015   template<typename File>
2016   Verdaux(File* file, typename File::Location loc)
2017     : p_(reinterpret_cast<const internal::Verdaux_data*>(
2018            file->view(loc.file_offset, loc.data_size).data()))
2019   { }
2020
2021   Elf_Word
2022   get_vda_name() const
2023   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
2024
2025   Elf_Word
2026   get_vda_next() const
2027   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
2028
2029  private:
2030   const internal::Verdaux_data* p_;
2031 };
2032
2033 template<int size, bool big_endian>
2034 class Verdaux_write
2035 {
2036  public:
2037   Verdaux_write(unsigned char* p)
2038     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
2039   { }
2040
2041   void
2042   set_vda_name(Elf_Word v)
2043   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
2044
2045   void
2046   set_vda_next(Elf_Word v)
2047   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
2048
2049  private:
2050   internal::Verdaux_data* p_;
2051 };
2052
2053 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
2054
2055 template<int size, bool big_endian>
2056 class Verneed
2057 {
2058  public:
2059   Verneed(const unsigned char* p)
2060     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
2061   { }
2062
2063   template<typename File>
2064   Verneed(File* file, typename File::Location loc)
2065     : p_(reinterpret_cast<const internal::Verneed_data*>(
2066            file->view(loc.file_offset, loc.data_size).data()))
2067   { }
2068
2069   Elf_Half
2070   get_vn_version() const
2071   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
2072
2073   Elf_Half
2074   get_vn_cnt() const
2075   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
2076
2077   Elf_Word
2078   get_vn_file() const
2079   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
2080
2081   Elf_Word
2082   get_vn_aux() const
2083   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
2084
2085   Elf_Word
2086   get_vn_next() const
2087   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
2088
2089  private:
2090   const internal::Verneed_data* p_;
2091 };
2092
2093 template<int size, bool big_endian>
2094 class Verneed_write
2095 {
2096  public:
2097   Verneed_write(unsigned char* p)
2098     : p_(reinterpret_cast<internal::Verneed_data*>(p))
2099   { }
2100
2101   void
2102   set_vn_version(Elf_Half v)
2103   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
2104
2105   void
2106   set_vn_cnt(Elf_Half v)
2107   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
2108
2109   void
2110   set_vn_file(Elf_Word v)
2111   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
2112
2113   void
2114   set_vn_aux(Elf_Word v)
2115   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
2116
2117   void
2118   set_vn_next(Elf_Word v)
2119   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
2120
2121  private:
2122   internal::Verneed_data* p_;
2123 };
2124
2125 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
2126 // section.
2127
2128 template<int size, bool big_endian>
2129 class Vernaux
2130 {
2131  public:
2132   Vernaux(const unsigned char* p)
2133     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
2134   { }
2135
2136   template<typename File>
2137   Vernaux(File* file, typename File::Location loc)
2138     : p_(reinterpret_cast<const internal::Vernaux_data*>(
2139            file->view(loc.file_offset, loc.data_size).data()))
2140   { }
2141
2142   Elf_Word
2143   get_vna_hash() const
2144   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
2145
2146   Elf_Half
2147   get_vna_flags() const
2148   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
2149
2150   Elf_Half
2151   get_vna_other() const
2152   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
2153
2154   Elf_Word
2155   get_vna_name() const
2156   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
2157
2158   Elf_Word
2159   get_vna_next() const
2160   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
2161
2162  private:
2163   const internal::Vernaux_data* p_;
2164 };
2165
2166 template<int size, bool big_endian>
2167 class Vernaux_write
2168 {
2169  public:
2170   Vernaux_write(unsigned char* p)
2171     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
2172   { }
2173
2174   void
2175   set_vna_hash(Elf_Word v)
2176   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
2177
2178   void
2179   set_vna_flags(Elf_Half v)
2180   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
2181
2182   void
2183   set_vna_other(Elf_Half v)
2184   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
2185
2186   void
2187   set_vna_name(Elf_Word v)
2188   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
2189
2190   void
2191   set_vna_next(Elf_Word v)
2192   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
2193
2194  private:
2195   internal::Vernaux_data* p_;
2196 };
2197
2198 } // End namespace elfcpp.
2199
2200 #endif // !defined(ELFPCP_H)