elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright 2006, 2007, Free Software Foundation, Inc.
   4 // Written by Ian Lance Taylor <iant@google.com>.
   5
   6 // This file is part of elfcpp.
   7
   8 // This program is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU Library General Public License
  10 // as published by the Free Software Foundation; either version 2, or
  11 // (at your option) any later version.
  12
  13 // In addition to the permissions in the GNU Library General Public
  14 // License, the Free Software Foundation gives you unlimited
  15 // permission to link the compiled version of this file into
  16 // combinations with other programs, and to distribute those
  17 // combinations without any restriction coming from the use of this
  18 // file.  (The Library Public License restrictions do apply in other
  19 // respects; for example, they cover modification of the file, and
  20 /// distribution when not linked into a combined executable.)
  21
  22 // This program is distributed in the hope that it will be useful, but
  23 // WITHOUT ANY WARRANTY; without even the implied warranty of
  24 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  25 // Library General Public License for more details.
  26
  27 // You should have received a copy of the GNU Library General Public
  28 // License along with this program; if not, write to the Free Software
  29 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  30 // 02110-1301, USA.
  31
  32 // This is the external interface for elfcpp.
  33
  34 #ifndef ELFCPP_H
  35 #define ELFCPP_H
  36
  37 #include "elfcpp_swap.h"
  38
  39 #include <stdint.h>
  40
  41 namespace elfcpp
  42 {
  43
  44 // Basic ELF types.
  45
  46 // These types are always the same size.
  47
  48 typedef uint16_t Elf_Half;
  49 typedef uint32_t Elf_Word;
  50 typedef int32_t Elf_Sword;
  51 typedef uint64_t Elf_Xword;
  52 typedef int64_t Elf_Sxword;
  53
  54 // These types vary in size depending on the ELF file class.  The
  55 // template parameter should be 32 or 64.
  56
  57 template<int size>
  58 struct Elf_types;
  59
  60 template<>
  61 struct Elf_types<32>
  62 {
  63   typedef uint32_t Elf_Addr;
  64   typedef uint32_t Elf_Off;
  65   typedef uint32_t Elf_WXword;
  66   typedef int32_t Elf_Swxword;
  67 };
  68
  69 template<>
  70 struct Elf_types<64>
  71 {
  72   typedef uint64_t Elf_Addr;
  73   typedef uint64_t Elf_Off;
  74   typedef uint64_t Elf_WXword;
  75   typedef int64_t Elf_Swxword;
  76 };
  77
  78 // Offsets within the Ehdr e_ident field.
  79
  80 const int EI_MAG0 = 0;
  81 const int EI_MAG1 = 1;
  82 const int EI_MAG2 = 2;
  83 const int EI_MAG3 = 3;
  84 const int EI_CLASS = 4;
  85 const int EI_DATA = 5;
  86 const int EI_VERSION = 6;
  87 const int EI_OSABI = 7;
  88 const int EI_ABIVERSION = 8;
  89 const int EI_PAD = 9;
  90 const int EI_NIDENT = 16;
  91
  92 // The valid values found in Ehdr e_ident[EI_MAG0 through EI_MAG3].
  93
  94 const int ELFMAG0 = 0x7f;
  95 const int ELFMAG1 = 'E';
  96 const int ELFMAG2 = 'L';
  97 const int ELFMAG3 = 'F';
  98
  99 // The valid values found in Ehdr e_ident[EI_CLASS].
 100
 101 enum
 102 {
 103   ELFCLASSNONE = 0,
 104   ELFCLASS32 = 1,
 105   ELFCLASS64 = 2
 106 };
 107
 108 // The valid values found in Ehdr e_ident[EI_DATA].
 109
 110 enum
 111 {
 112   ELFDATANONE = 0,
 113   ELFDATA2LSB = 1,
 114   ELFDATA2MSB = 2
 115 };
 116
 117 // The valid values found in Ehdr e_ident[EI_VERSION] and e_version.
 118
 119 enum
 120 {
 121   EV_NONE = 0,
 122   EV_CURRENT = 1
 123 };
 124
 125 // The valid values found in Ehdr e_ident[EI_OSABI].
 126
 127 enum ELFOSABI
 128 {
 129   ELFOSABI_NONE = 0,
 130   ELFOSABI_HPUX = 1,
 131   ELFOSABI_NETBSD = 2,
 132   // ELFOSABI_LINUX is not listed in the ELF standard.
 133   ELFOSABI_LINUX = 3,
 134   // ELFOSABI_HURD is not listed in the ELF standard.
 135   ELFOSABI_HURD = 4,
 136   ELFOSABI_SOLARIS = 6,
 137   ELFOSABI_AIX = 7,
 138   ELFOSABI_IRIX = 8,
 139   ELFOSABI_FREEBSD = 9,
 140   ELFOSABI_TRU64 = 10,
 141   ELFOSABI_MODESTO = 11,
 142   ELFOSABI_OPENBSD = 12,
 143   ELFOSABI_OPENVMS = 13,
 144   ELFOSABI_NSK = 14,
 145   ELFOSABI_AROS = 15,
 146   // A GNU extension for the ARM.
 147   ELFOSABI_ARM = 97,
 148   // A GNU extension for the MSP.
 149   ELFOSABI_STANDALONE = 255
 150 };
 151
 152 // The valid values found in the Ehdr e_type field.
 153
 154 enum ET
 155 {
 156   ET_NONE = 0,
 157   ET_REL = 1,
 158   ET_EXEC = 2,
 159   ET_DYN = 3,
 160   ET_CORE = 4,
 161   ET_LOOS = 0xfe00,
 162   ET_HIOS = 0xfeff,
 163   ET_LOPROC = 0xff00,
 164   ET_HIPROC = 0xffff
 165 };
 166
 167 // The valid values found in the Ehdr e_machine field.
 168
 169 enum EM
 170 {
 171   EM_NONE = 0,
 172   EM_M32 = 1,
 173   EM_SPARC = 2,
 174   EM_386 = 3,
 175   EM_68K = 4,
 176   EM_88K = 5,
 177   // 6 used to be EM_486
 178   EM_860 = 7,
 179   EM_MIPS = 8,
 180   EM_S370 = 9,
 181   EM_MIPS_RS3_LE = 10,
 182   // 11 was the old Sparc V9 ABI.
 183   // 12 through 14 are reserved.
 184   EM_PARISC = 15,
 185   // 16 is reserved.
 186   // Some old PowerPC object files use 17.
 187   EM_VPP500 = 17,
 188   EM_SPARC32PLUS = 18,
 189   EM_960 = 19,
 190   EM_PPC = 20,
 191   EM_PPC64 = 21,
 192   EM_S390 = 22,
 193   // 23 through 35 are served.
 194   EM_V800 = 36,
 195   EM_FR20 = 37,
 196   EM_RH32 = 38,
 197   EM_RCE = 39,
 198   EM_ARM = 40,
 199   EM_ALPHA = 41,
 200   EM_SH = 42,
 201   EM_SPARCV9 = 43,
 202   EM_TRICORE = 44,
 203   EM_ARC = 45,
 204   EM_H8_300 = 46,
 205   EM_H8_300H = 47,
 206   EM_H8S = 48,
 207   EM_H8_500 = 49,
 208   EM_IA_64 = 50,
 209   EM_MIPS_X = 51,
 210   EM_COLDFIRE = 52,
 211   EM_68HC12 = 53,
 212   EM_MMA = 54,
 213   EM_PCP = 55,
 214   EM_NCPU = 56,
 215   EM_NDR1 = 57,
 216   EM_STARCORE = 58,
 217   EM_ME16 = 59,
 218   EM_ST100 = 60,
 219   EM_TINYJ = 61,
 220   EM_X86_64 = 62,
 221   EM_PDSP = 63,
 222   EM_PDP10 = 64,
 223   EM_PDP11 = 65,
 224   EM_FX66 = 66,
 225   EM_ST9PLUS = 67,
 226   EM_ST7 = 68,
 227   EM_68HC16 = 69,
 228   EM_68HC11 = 70,
 229   EM_68HC08 = 71,
 230   EM_68HC05 = 72,
 231   EM_SVX = 73,
 232   EM_ST19 = 74,
 233   EM_VAX = 75,
 234   EM_CRIS = 76,
 235   EM_JAVELIN = 77,
 236   EM_FIREPATH = 78,
 237   EM_ZSP = 79,
 238   EM_MMIX = 80,
 239   EM_HUANY = 81,
 240   EM_PRISM = 82,
 241   EM_AVR = 83,
 242   EM_FR30 = 84,
 243   EM_D10V = 85,
 244   EM_D30V = 86,
 245   EM_V850 = 87,
 246   EM_M32R = 88,
 247   EM_MN10300 = 89,
 248   EM_MN10200 = 90,
 249   EM_PJ = 91,
 250   EM_OPENRISC = 92,
 251   EM_ARC_A5 = 93,
 252   EM_XTENSA = 94,
 253   EM_VIDEOCORE = 95,
 254   EM_TMM_GPP = 96,
 255   EM_NS32K = 97,
 256   EM_TPC = 98,
 257   // Some old picoJava object files use 99 (EM_PJ is correct).
 258   EM_SNP1K = 99,
 259   EM_ST200 = 100,
 260   EM_IP2K = 101,
 261   EM_MAX = 102,
 262   EM_CR = 103,
 263   EM_F2MC16 = 104,
 264   EM_MSP430 = 105,
 265   EM_BLACKFIN = 106,
 266   EM_SE_C33 = 107,
 267   EM_SEP = 108,
 268   EM_ARCA = 109,
 269   EM_UNICORE = 110,
 270   EM_ALTERA_NIOS2 = 113,
 271   EM_CRX = 114,
 272   // The Morph MT.
 273   EM_MT = 0x2530,
 274   // DLX.
 275   EM_DLX = 0x5aa5,
 276   // FRV.
 277   EM_FRV = 0x5441,
 278   // Infineon Technologies 16-bit microcontroller with C166-V2 core.
 279   EM_X16X = 0x4688,
 280   // Xstorym16
 281   EM_XSTORMY16 = 0xad45,
 282   // Renesas M32C
 283   EM_M32C = 0xfeb0,
 284   // Vitesse IQ2000
 285   EM_IQ2000 = 0xfeba,
 286   // NIOS
 287   EM_NIOS32 = 0xfebb
 288   // Old AVR objects used 0x1057 (EM_AVR is correct).
 289   // Old MSP430 objects used 0x1059 (EM_MSP430 is correct).
 290   // Old FR30 objects used 0x3330 (EM_FR30 is correct).
 291   // Old OpenRISC objects used 0x3426 and 0x8472 (EM_OPENRISC is correct).
 292   // Old D10V objects used 0x7650 (EM_D10V is correct).
 293   // Old D30V objects used 0x7676 (EM_D30V is correct).
 294   // Old IP2X objects used 0x8217 (EM_IP2K is correct).
 295   // Old PowerPC objects used 0x9025 (EM_PPC is correct).
 296   // Old Alpha objects used 0x9026 (EM_ALPHA is correct).
 297   // Old M32R objects used 0x9041 (EM_M32R is correct).
 298   // Old V850 objects used 0x9080 (EM_V850 is correct).
 299   // Old S/390 objects used 0xa390 (EM_S390 is correct).
 300   // Old Xtensa objects used 0xabc7 (EM_XTENSA is correct).
 301   // Old MN10300 objects used 0xbeef (EM_MN10300 is correct).
 302   // Old MN10200 objects used 0xdead (EM_MN10200 is correct).
 303 };
 304
 305 // Special section indices.
 306
 307 enum
 308 {
 309   SHN_UNDEF = 0,
 310   SHN_LORESERVE = 0xff00,
 311   SHN_LOPROC = 0xff00,
 312   SHN_HIPROC = 0xff1f,
 313   SHN_LOOS = 0xff20,
 314   SHN_HIOS = 0xff3f,
 315   SHN_ABS = 0xfff1,
 316   SHN_COMMON = 0xfff2,
 317   SHN_XINDEX = 0xffff,
 318   SHN_HIRESERVE = 0xffff,
 319
 320   // Provide for initial and final section ordering in conjunction
 321   // with the SHF_LINK_ORDER and SHF_ORDERED section flags.
 322   SHN_BEFORE = 0xff00,
 323   SHN_AFTER = 0xff01,
 324 };
 325
 326 // The valid values found in the Shdr sh_type field.
 327
 328 enum SHT
 329 {
 330   SHT_NULL = 0,
 331   SHT_PROGBITS = 1,
 332   SHT_SYMTAB = 2,
 333   SHT_STRTAB = 3,
 334   SHT_RELA = 4,
 335   SHT_HASH = 5,
 336   SHT_DYNAMIC = 6,
 337   SHT_NOTE = 7,
 338   SHT_NOBITS = 8,
 339   SHT_REL = 9,
 340   SHT_SHLIB = 10,
 341   SHT_DYNSYM = 11,
 342   SHT_INIT_ARRAY = 14,
 343   SHT_FINI_ARRAY = 15,
 344   SHT_PREINIT_ARRAY = 16,
 345   SHT_GROUP = 17,
 346   SHT_SYMTAB_SHNDX = 18,
 347   SHT_LOOS = 0x60000000,
 348   SHT_HIOS = 0x6fffffff,
 349   SHT_LOPROC = 0x70000000,
 350   SHT_HIPROC = 0x7fffffff,
 351   SHT_LOUSER = 0x80000000,
 352   SHT_HIUSER = 0xffffffff,
 353   // The remaining values are not in the standard.
 354   // Object attributes.
 355   SHT_GNU_ATTRIBUTES = 0x6ffffff5,
 356   // GNU style dynamic hash table.
 357   SHT_GNU_HASH = 0x6ffffff6,
 358   // List of prelink dependencies.
 359   SHT_GNU_LIBLIST = 0x6ffffff7,
 360   // Versions defined by file.
 361   SHT_SUNW_verdef = 0x6ffffffd,
 362   SHT_GNU_verdef = 0x6ffffffd,
 363   // Versions needed by file.
 364   SHT_SUNW_verneed = 0x6ffffffe,
 365   SHT_GNU_verneed = 0x6ffffffe,
 366   // Symbol versions,
 367   SHT_SUNW_versym = 0x6fffffff,
 368   SHT_GNU_versym = 0x6fffffff,
 369
 370   SHT_SPARC_GOTDATA = 0x70000000,
 371
 372   // Link editor is to sort the entries in this section based on the
 373   // address specified in the associated symbol table entry.
 374   SHT_ORDERED = 0x7fffffff,
 375 };
 376
 377 // The valid bit flags found in the Shdr sh_flags field.
 378
 379 enum SHF
 380 {
 381   SHF_WRITE = 0x1,
 382   SHF_ALLOC = 0x2,
 383   SHF_EXECINSTR = 0x4,
 384   SHF_MERGE = 0x10,
 385   SHF_STRINGS = 0x20,
 386   SHF_INFO_LINK = 0x40,
 387   SHF_LINK_ORDER = 0x80,
 388   SHF_OS_NONCONFORMING = 0x100,
 389   SHF_GROUP = 0x200,
 390   SHF_TLS = 0x400,
 391   SHF_MASKOS = 0x0ff00000,
 392   SHF_MASKPROC = 0xf0000000,
 393
 394   // Indicates this section requires ordering in relation to
 395   // other sections of the same type.  Ordered sections are
 396   // combined within the section pointed to by the sh_link entry.
 397   // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
 398   // sorted section is to precede or follow, respectively, all
 399   // other sections in the set being ordered.
 400   SHF_ORDERED = 0x40000000,
 401   // This section is excluded from input to the link-edit of an
 402   // executable or shared object.  This flag is ignored if SHF_ALLOC
 403   // is also set, or if relocations exist against the section.
 404   SHF_EXCLUDE = 0x80000000,
 405 };
 406
 407 // Bit flags which appear in the first 32-bit word of the section data
 408 // of a SHT_GROUP section.
 409
 410 enum
 411 {
 412   GRP_COMDAT = 0x1,
 413   GRP_MASKOS = 0x0ff00000,
 414   GRP_MASKPROC = 0xf0000000
 415 };
 416
 417 // The valid values found in the Phdr p_type field.
 418
 419 enum PT
 420 {
 421   PT_NULL = 0,
 422   PT_LOAD = 1,
 423   PT_DYNAMIC = 2,
 424   PT_INTERP = 3,
 425   PT_NOTE = 4,
 426   PT_SHLIB = 5,
 427   PT_PHDR = 6,
 428   PT_TLS = 7,
 429   PT_LOOS = 0x60000000,
 430   PT_HIOS = 0x6fffffff,
 431   PT_LOPROC = 0x70000000,
 432   PT_HIPROC = 0x7fffffff,
 433   // The remaining values are not in the standard.
 434   // Frame unwind information.
 435   PT_GNU_EH_FRAME = 0x6474e550,
 436   PT_SUNW_EH_FRAME = 0x6474e550,
 437   // Stack flags.
 438   PT_GNU_STACK = 0x6474e551,
 439   // Read only after relocation.
 440   PT_GNU_RELRO = 0x6474e552
 441 };
 442
 443 // The valid bit flags found in the Phdr p_flags field.
 444
 445 enum PF
 446 {
 447   PF_X = 0x1,
 448   PF_W = 0x2,
 449   PF_R = 0x4,
 450   PF_MASKOS = 0x0ff00000,
 451   PF_MASKPROC = 0xf0000000
 452 };
 453
 454 // Symbol binding from Sym st_info field.
 455
 456 enum STB
 457 {
 458   STB_LOCAL = 0,
 459   STB_GLOBAL = 1,
 460   STB_WEAK = 2,
 461   STB_LOOS = 10,
 462   STB_HIOS = 12,
 463   STB_LOPROC = 13,
 464   STB_HIPROC = 15
 465 };
 466
 467 // Symbol types from Sym st_info field.
 468
 469 enum STT
 470 {
 471   STT_NOTYPE = 0,
 472   STT_OBJECT = 1,
 473   STT_FUNC = 2,
 474   STT_SECTION = 3,
 475   STT_FILE = 4,
 476   STT_COMMON = 5,
 477   STT_TLS = 6,
 478   STT_LOOS = 10,
 479   STT_HIOS = 12,
 480   STT_LOPROC = 13,
 481   STT_HIPROC = 15,
 482
 483   // The section type that must be used for register symbols on
 484   // Sparc.  These symbols initialize a global register.
 485   STT_SPARC_REGISTER = 13,
 486 };
 487
 488 inline STB
 489 elf_st_bind(unsigned char info)
 490 {
 491   return static_cast<STB>(info >> 4);
 492 }
 493
 494 inline STT
 495 elf_st_type(unsigned char info)
 496 {
 497   return static_cast<STT>(info & 0xf);
 498 }
 499
 500 inline unsigned char
 501 elf_st_info(STB bind, STT type)
 502 {
 503   return ((static_cast<unsigned char>(bind) << 4)
 504           + (static_cast<unsigned char>(type) & 0xf));
 505 }
 506
 507 // Symbol visibility from Sym st_other field.
 508
 509 enum STV
 510 {
 511   STV_DEFAULT = 0,
 512   STV_INTERNAL = 1,
 513   STV_HIDDEN = 2,
 514   STV_PROTECTED = 3
 515 };
 516
 517 inline STV
 518 elf_st_visibility(unsigned char other)
 519 {
 520   return static_cast<STV>(other & 0x3);
 521 }
 522
 523 inline unsigned char
 524 elf_st_nonvis(unsigned char other)
 525 {
 526   return static_cast<STV>(other >> 2);
 527 }
 528
 529 inline unsigned char
 530 elf_st_other(STV vis, unsigned char nonvis)
 531 {
 532   return ((nonvis << 2)
 533           + (static_cast<unsigned char>(vis) & 3));
 534 }
 535
 536 // Reloc information from Rel/Rela r_info field.
 537
 538 template<int size>
 539 unsigned int
 540 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 541
 542 template<>
 543 inline unsigned int
 544 elf_r_sym<32>(Elf_Word v)
 545 {
 546   return v >> 8;
 547 }
 548
 549 template<>
 550 inline unsigned int
 551 elf_r_sym<64>(Elf_Xword v)
 552 {
 553   return v >> 32;
 554 }
 555
 556 template<int size>
 557 unsigned int
 558 elf_r_type(typename Elf_types<size>::Elf_WXword);
 559
 560 template<>
 561 inline unsigned int
 562 elf_r_type<32>(Elf_Word v)
 563 {
 564   return v & 0xff;
 565 }
 566
 567 template<>
 568 inline unsigned int
 569 elf_r_type<64>(Elf_Xword v)
 570 {
 571   return v & 0xffffffff;
 572 }
 573
 574 template<int size>
 575 typename Elf_types<size>::Elf_WXword
 576 elf_r_info(unsigned int s, unsigned int t);
 577
 578 template<>
 579 inline Elf_Word
 580 elf_r_info<32>(unsigned int s, unsigned int t)
 581 {
 582   return (s << 8) + (t & 0xff);
 583 }
 584
 585 template<>
 586 inline Elf_Xword
 587 elf_r_info<64>(unsigned int s, unsigned int t)
 588 {
 589   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 590 }
 591
 592 // Dynamic tags found in the PT_DYNAMIC segment.
 593
 594 enum DT
 595 {
 596   DT_NULL = 0,
 597   DT_NEEDED = 1,
 598   DT_PLTRELSZ = 2,
 599   DT_PLTGOT = 3,
 600   DT_HASH = 4,
 601   DT_STRTAB = 5,
 602   DT_SYMTAB = 6,
 603   DT_RELA = 7,
 604   DT_RELASZ = 8,
 605   DT_RELAENT = 9,
 606   DT_STRSZ = 10,
 607   DT_SYMENT = 11,
 608   DT_INIT = 12,
 609   DT_FINI = 13,
 610   DT_SONAME = 14,
 611   DT_RPATH = 15,
 612   DT_SYMBOLIC = 16,
 613   DT_REL = 17,
 614   DT_RELSZ = 18,
 615   DT_RELENT = 19,
 616   DT_PLTREL = 20,
 617   DT_DEBUG = 21,
 618   DT_TEXTREL = 22,
 619   DT_JMPREL = 23,
 620   DT_BIND_NOW = 24,
 621   DT_INIT_ARRAY = 25,
 622   DT_FINI_ARRAY = 26,
 623   DT_INIT_ARRAYSZ = 27,
 624   DT_FINI_ARRAYSZ = 28,
 625   DT_RUNPATH = 29,
 626   DT_FLAGS = 30,
 627   DT_ENCODING = 32,
 628   DT_PREINIT_ARRAY = 33,
 629   DT_PREINIT_ARRAYSZ = 33,
 630   DT_LOOS = 0x6000000d,
 631   DT_HIOS = 0x6ffff000,
 632   DT_LOPROC = 0x70000000,
 633   DT_HIPROC = 0x7fffffff,
 634
 635   // The remaining values are extensions used by GNU or Solaris.
 636   DT_VALRNGLO = 0x6ffffd00,
 637   DT_GNU_PRELINKED = 0x6ffffdf5,
 638   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 639   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 640   DT_CHECKSUM = 0x6ffffdf8,
 641   DT_PLTPADSZ = 0x6ffffdf9,
 642   DT_MOVEENT = 0x6ffffdfa,
 643   DT_MOVESZ = 0x6ffffdfb,
 644   DT_FEATURE = 0x6ffffdfc,
 645   DT_POSFLAG_1 = 0x6ffffdfd,
 646   DT_SYMINSZ = 0x6ffffdfe,
 647   DT_SYMINENT = 0x6ffffdff,
 648   DT_VALRNGHI = 0x6ffffdff,
 649
 650   DT_ADDRRNGLO = 0x6ffffe00,
 651   DT_GNU_HASH = 0x6ffffef5,
 652   DT_TLSDESC_PLT = 0x6ffffef6,
 653   DT_TLSDESC_GOT = 0x6ffffef7,
 654   DT_GNU_CONFLICT = 0x6ffffef8,
 655   DT_GNU_LIBLIST = 0x6ffffef9,
 656   DT_CONFIG = 0x6ffffefa,
 657   DT_DEPAUDIT = 0x6ffffefb,
 658   DT_AUDIT = 0x6ffffefc,
 659   DT_PLTPAD = 0x6ffffefd,
 660   DT_MOVETAB = 0x6ffffefe,
 661   DT_SYMINFO = 0x6ffffeff,
 662   DT_ADDRRNGHI = 0x6ffffeff,
 663
 664   DT_RELACOUNT = 0x6ffffff9,
 665   DT_RELCOUNT = 0x6ffffffa,
 666   DT_FLAGS_1 = 0x6ffffffb,
 667   DT_VERDEF = 0x6ffffffc,
 668   DT_VERDEFNUM = 0x6ffffffd,
 669   DT_VERNEED = 0x6ffffffe,
 670   DT_VERNEEDNUM = 0x6fffffff,
 671
 672   DT_VERSYM = 0x6ffffff0,
 673
 674   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 675   DT_PPC_GOT = 0x70000000,
 676
 677   // Specify the start of the .glink section.
 678   DT_PPC64_GLINK = 0x70000000,
 679
 680   // Specify the start and size of the .opd section.
 681   DT_PPC64_OPD = 0x70000001,
 682   DT_PPC64_OPDSZ = 0x70000002,
 683
 684   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 685   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 686   // symbol in the symbol table.
 687   DT_SPARC_REGISTER = 0x70000001,
 688
 689   DT_AUXILIARY = 0x7ffffffd,
 690   DT_USED = 0x7ffffffe,
 691   DT_FILTER = 0x7fffffff
 692 };
 693
 694 // Flags found in the DT_FLAGS dynamic element.
 695
 696 enum DF
 697 {
 698   DF_ORIGIN = 0x1,
 699   DF_SYMBOLIC = 0x2,
 700   DF_TEXTREL = 0x4,
 701   DF_BIND_NOW = 0x8,
 702   DF_STATIC_TLS = 0x10
 703 };
 704
 705 // Flags found in the DT_FLAGS_1 dynamic element.
 706
 707 enum DF_1
 708 {
 709   DF_1_NOW = 0x1,
 710   DF_1_GLOBAL = 0x2,
 711   DF_1_GROUP = 0x4,
 712   DF_1_NODELETE = 0x8,
 713   DF_1_LOADFLTR = 0x10,
 714   DF_1_INITFIRST = 0x20,
 715   DF_1_NOOPEN = 0x40,
 716   DF_1_ORIGIN = 0x80,
 717   DF_1_DIRECT = 0x100,
 718   DF_1_TRANS = 0x200,
 719   DF_1_INTERPOSE = 0x400,
 720   DF_1_NODEFLIB = 0x800,
 721   DF_1_NODUMP = 0x1000,
 722   DF_1_CONLFAT = 0x2000,
 723 };
 724
 725 // Version numbers which appear in the vd_version field of a Verdef
 726 // structure.
 727
 728 const int VER_DEF_NONE = 0;
 729 const int VER_DEF_CURRENT = 1;
 730
 731 // Version numbers which appear in the vn_version field of a Verneed
 732 // structure.
 733
 734 const int VER_NEED_NONE = 0;
 735 const int VER_NEED_CURRENT = 1;
 736
 737 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 738 // Vernaux.
 739
 740 const int VER_FLG_BASE = 0x1;
 741 const int VER_FLG_WEAK = 0x2;
 742
 743 // Special constants found in the SHT_GNU_versym entries.
 744
 745 const int VER_NDX_LOCAL = 0;
 746 const int VER_NDX_GLOBAL = 1;
 747
 748 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 749 // the symbol is hidden and can only be seen when referenced using an
 750 // explicit version number.  This is a GNU extension.
 751
 752 const int VERSYM_HIDDEN = 0x8000;
 753
 754 // This is the mask for the rest of the data in a word read from a
 755 // SHT_GNU_versym section.
 756
 757 const int VERSYM_VERSION = 0x7fff;
 758
 759 // Note descriptor type codes for notes in a non-core file with an
 760 // empty name.
 761
 762 enum
 763 {
 764   // A version string.
 765   NT_VERSION = 1,
 766   // An architecture string.
 767   NT_ARCH = 2
 768 };
 769
 770 // Note descriptor type codes for notes in a non-core file with the
 771 // name "GNU".
 772
 773 enum
 774 {
 775   // The minimum ABI level.  This is used by the dynamic linker to
 776   // describe the minimal kernel version on which a shared library may
 777   // be used.  Th value should be four words.  Word 0 is an OS
 778   // descriptor (see below).  Word 1 is the major version of the ABI.
 779   // Word 2 is the minor version.  Word 3 is the subminor version.
 780   NT_GNU_ABI_TAG = 1,
 781   // Hardware capabilities information.  Word 0 is the number of
 782   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 783   // the descriptor is a series of entries, where each entry is a
 784   // single byte followed by a nul terminated string.  The byte gives
 785   // the bit number to test if enabled in the bitmask.
 786   NT_GNU_HWCAP = 2,
 787   // The build ID as set by the linker's --build-id option.  The
 788   // format of the descriptor depends on the build ID style.
 789   NT_GNU_BUILD_ID = 3,
 790   // The version of gold used to link.  Th descriptor is just a
 791   // string.
 792   NT_GNU_GOLD_VERSION = 4
 793 };
 794
 795 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 796
 797 enum
 798 {
 799   ELF_NOTE_OS_LINUX = 0,
 800   ELF_NOTE_OS_GNU = 1,
 801   ELF_NOTE_OS_SOLARIS2 = 2,
 802   ELF_NOTE_OS_FREEBSD = 3,
 803   ELF_NOTE_OS_NETBSD = 4,
 804   ELF_NOTE_OS_SYLLABLE = 5
 805 };
 806
 807 } // End namespace elfcpp.
 808
 809 // Include internal details after defining the types.
 810 #include "elfcpp_internal.h"
 811
 812 namespace elfcpp
 813 {
 814
 815 // The offset of the ELF file header in the ELF file.
 816
 817 const int file_header_offset = 0;
 818
 819 // ELF structure sizes.
 820
 821 template<int size>
 822 struct Elf_sizes
 823 {
 824   // Size of ELF file header.
 825   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
 826   // Size of ELF segment header.
 827   static const int phdr_size = sizeof(internal::Phdr_data<size>);
 828   // Size of ELF section header.
 829   static const int shdr_size = sizeof(internal::Shdr_data<size>);
 830   // Size of ELF symbol table entry.
 831   static const int sym_size = sizeof(internal::Sym_data<size>);
 832   // Sizes of ELF reloc entries.
 833   static const int rel_size = sizeof(internal::Rel_data<size>);
 834   static const int rela_size = sizeof(internal::Rela_data<size>);
 835   // Size of ELF dynamic entry.
 836   static const int dyn_size = sizeof(internal::Dyn_data<size>);
 837   // Size of ELF version structures.
 838   static const int verdef_size = sizeof(internal::Verdef_data);
 839   static const int verdaux_size = sizeof(internal::Verdaux_data);
 840   static const int verneed_size = sizeof(internal::Verneed_data);
 841   static const int vernaux_size = sizeof(internal::Vernaux_data);
 842 };
 843
 844 // Accessor class for the ELF file header.
 845
 846 template<int size, bool big_endian>
 847 class Ehdr
 848 {
 849  public:
 850   Ehdr(const unsigned char* p)
 851     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
 852   { }
 853
 854   template<typename File>
 855   Ehdr(File* file, typename File::Location loc)
 856     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
 857            file->view(loc.file_offset, loc.data_size).data()))
 858   { }
 859
 860   const unsigned char*
 861   get_e_ident() const
 862   { return this->p_->e_ident; }
 863
 864   Elf_Half
 865   get_e_type() const
 866   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
 867
 868   Elf_Half
 869   get_e_machine() const
 870   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
 871
 872   Elf_Word
 873   get_e_version() const
 874   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
 875
 876   typename Elf_types<size>::Elf_Addr
 877   get_e_entry() const
 878   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
 879
 880   typename Elf_types<size>::Elf_Off
 881   get_e_phoff() const
 882   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
 883
 884   typename Elf_types<size>::Elf_Off
 885   get_e_shoff() const
 886   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
 887
 888   Elf_Word
 889   get_e_flags() const
 890   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
 891
 892   Elf_Half
 893   get_e_ehsize() const
 894   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
 895
 896   Elf_Half
 897   get_e_phentsize() const
 898   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
 899
 900   Elf_Half
 901   get_e_phnum() const
 902   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
 903
 904   Elf_Half
 905   get_e_shentsize() const
 906   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
 907
 908   Elf_Half
 909   get_e_shnum() const
 910   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
 911
 912   Elf_Half
 913   get_e_shstrndx() const
 914   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
 915
 916  private:
 917   const internal::Ehdr_data<size>* p_;
 918 };
 919
 920 // Write class for the ELF file header.
 921
 922 template<int size, bool big_endian>
 923 class Ehdr_write
 924 {
 925  public:
 926   Ehdr_write(unsigned char* p)
 927     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
 928   { }
 929
 930   void
 931   put_e_ident(const unsigned char v[EI_NIDENT]) const
 932   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
 933
 934   void
 935   put_e_type(Elf_Half v)
 936   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
 937
 938   void
 939   put_e_machine(Elf_Half v)
 940   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
 941
 942   void
 943   put_e_version(Elf_Word v)
 944   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
 945
 946   void
 947   put_e_entry(typename Elf_types<size>::Elf_Addr v)
 948   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
 949
 950   void
 951   put_e_phoff(typename Elf_types<size>::Elf_Off v)
 952   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
 953
 954   void
 955   put_e_shoff(typename Elf_types<size>::Elf_Off v)
 956   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
 957
 958   void
 959   put_e_flags(Elf_Word v)
 960   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
 961
 962   void
 963   put_e_ehsize(Elf_Half v)
 964   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
 965
 966   void
 967   put_e_phentsize(Elf_Half v)
 968   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
 969
 970   void
 971   put_e_phnum(Elf_Half v)
 972   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
 973
 974   void
 975   put_e_shentsize(Elf_Half v)
 976   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
 977
 978   void
 979   put_e_shnum(Elf_Half v)
 980   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
 981
 982   void
 983   put_e_shstrndx(Elf_Half v)
 984   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
 985
 986  private:
 987   internal::Ehdr_data<size>* p_;
 988 };
 989
 990 // Accessor class for an ELF section header.
 991
 992 template<int size, bool big_endian>
 993 class Shdr
 994 {
 995  public:
 996   Shdr(const unsigned char* p)
 997     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
 998   { }
 999
1000   template<typename File>
1001   Shdr(File* file, typename File::Location loc)
1002     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1003            file->view(loc.file_offset, loc.data_size).data()))
1004   { }
1005
1006   Elf_Word
1007   get_sh_name() const
1008   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1009
1010   Elf_Word
1011   get_sh_type() const
1012   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1013
1014   typename Elf_types<size>::Elf_WXword
1015   get_sh_flags() const
1016   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1017
1018   typename Elf_types<size>::Elf_Addr
1019   get_sh_addr() const
1020   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1021
1022   typename Elf_types<size>::Elf_Off
1023   get_sh_offset() const
1024   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1025
1026   typename Elf_types<size>::Elf_WXword
1027   get_sh_size() const
1028   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1029
1030   Elf_Word
1031   get_sh_link() const
1032   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1033
1034   Elf_Word
1035   get_sh_info() const
1036   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1037
1038   typename Elf_types<size>::Elf_WXword
1039   get_sh_addralign() const
1040   { return
1041       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1042
1043   typename Elf_types<size>::Elf_WXword
1044   get_sh_entsize() const
1045   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1046
1047  private:
1048   const internal::Shdr_data<size>* p_;
1049 };
1050
1051 // Write class for an ELF section header.
1052
1053 template<int size, bool big_endian>
1054 class Shdr_write
1055 {
1056  public:
1057   Shdr_write(unsigned char* p)
1058     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1059   { }
1060
1061   void
1062   put_sh_name(Elf_Word v)
1063   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1064
1065   void
1066   put_sh_type(Elf_Word v)
1067   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1068
1069   void
1070   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1071   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1072
1073   void
1074   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1075   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1076
1077   void
1078   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1079   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1080
1081   void
1082   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1083   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1084
1085   void
1086   put_sh_link(Elf_Word v)
1087   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1088
1089   void
1090   put_sh_info(Elf_Word v)
1091   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1092
1093   void
1094   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1095   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1096
1097   void
1098   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1099   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1100
1101  private:
1102   internal::Shdr_data<size>* p_;
1103 };
1104
1105 // Accessor class for an ELF segment header.
1106
1107 template<int size, bool big_endian>
1108 class Phdr
1109 {
1110  public:
1111   Phdr(const unsigned char* p)
1112     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1113   { }
1114
1115   template<typename File>
1116   Phdr(File* file, typename File::Location loc)
1117     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1118            file->view(loc.file_offset, loc.data_size).data()))
1119   { }
1120
1121   Elf_Word
1122   get_p_type() const
1123   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1124
1125   typename Elf_types<size>::Elf_Off
1126   get_p_offset() const
1127   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1128
1129   typename Elf_types<size>::Elf_Addr
1130   get_p_vaddr() const
1131   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1132
1133   typename Elf_types<size>::Elf_Addr
1134   get_p_paddr() const
1135   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1136
1137   typename Elf_types<size>::Elf_WXword
1138   get_p_filesz() const
1139   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1140
1141   typename Elf_types<size>::Elf_WXword
1142   get_p_memsz() const
1143   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1144
1145   Elf_Word
1146   get_p_flags() const
1147   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1148
1149   typename Elf_types<size>::Elf_WXword
1150   get_p_align() const
1151   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1152
1153  private:
1154   const internal::Phdr_data<size>* p_;
1155 };
1156
1157 // Write class for an ELF segment header.
1158
1159 template<int size, bool big_endian>
1160 class Phdr_write
1161 {
1162  public:
1163   Phdr_write(unsigned char* p)
1164     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1165   { }
1166
1167   void
1168   put_p_type(Elf_Word v)
1169   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1170
1171   void
1172   put_p_offset(typename Elf_types<size>::Elf_Off v)
1173   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1174
1175   void
1176   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1177   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1178
1179   void
1180   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1181   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1182
1183   void
1184   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1185   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1186
1187   void
1188   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1189   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1190
1191   void
1192   put_p_flags(Elf_Word v)
1193   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1194
1195   void
1196   put_p_align(typename Elf_types<size>::Elf_WXword v)
1197   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1198
1199  private:
1200   internal::Phdr_data<size>* p_;
1201 };
1202
1203 // Accessor class for an ELF symbol table entry.
1204
1205 template<int size, bool big_endian>
1206 class Sym
1207 {
1208  public:
1209   Sym(const unsigned char* p)
1210     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1211   { }
1212
1213   template<typename File>
1214   Sym(File* file, typename File::Location loc)
1215     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1216            file->view(loc.file_offset, loc.data_size).data()))
1217   { }
1218
1219   Elf_Word
1220   get_st_name() const
1221   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1222
1223   typename Elf_types<size>::Elf_Addr
1224   get_st_value() const
1225   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1226
1227   typename Elf_types<size>::Elf_WXword
1228   get_st_size() const
1229   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1230
1231   unsigned char
1232   get_st_info() const
1233   { return this->p_->st_info; }
1234
1235   STB
1236   get_st_bind() const
1237   { return elf_st_bind(this->get_st_info()); }
1238
1239   STT
1240   get_st_type() const
1241   { return elf_st_type(this->get_st_info()); }
1242
1243   unsigned char
1244   get_st_other() const
1245   { return this->p_->st_other; }
1246
1247   STV
1248   get_st_visibility() const
1249   { return elf_st_visibility(this->get_st_other()); }
1250
1251   unsigned char
1252   get_st_nonvis() const
1253   { return elf_st_nonvis(this->get_st_other()); }
1254
1255   Elf_Half
1256   get_st_shndx() const
1257   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1258
1259  private:
1260   const internal::Sym_data<size>* p_;
1261 };
1262
1263 // Writer class for an ELF symbol table entry.
1264
1265 template<int size, bool big_endian>
1266 class Sym_write
1267 {
1268  public:
1269   Sym_write(unsigned char* p)
1270     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1271   { }
1272
1273   void
1274   put_st_name(Elf_Word v)
1275   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1276
1277   void
1278   put_st_value(typename Elf_types<size>::Elf_Addr v)
1279   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1280
1281   void
1282   put_st_size(typename Elf_types<size>::Elf_WXword v)
1283   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1284
1285   void
1286   put_st_info(unsigned char v)
1287   { this->p_->st_info = v; }
1288
1289   void
1290   put_st_info(STB bind, STT type)
1291   { this->p_->st_info = elf_st_info(bind, type); }
1292
1293   void
1294   put_st_other(unsigned char v)
1295   { this->p_->st_other = v; }
1296
1297   void
1298   put_st_other(STV vis, unsigned char nonvis)
1299   { this->p_->st_other = elf_st_other(vis, nonvis); }
1300
1301   void
1302   put_st_shndx(Elf_Half v)
1303   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1304
1305   Sym<size, big_endian>
1306   sym()
1307   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1308
1309  private:
1310   internal::Sym_data<size>* p_;
1311 };
1312
1313 // Accessor classes for an ELF REL relocation entry.
1314
1315 template<int size, bool big_endian>
1316 class Rel
1317 {
1318  public:
1319   Rel(const unsigned char* p)
1320     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1321   { }
1322
1323   template<typename File>
1324   Rel(File* file, typename File::Location loc)
1325     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1326            file->view(loc.file_offset, loc.data_size).data()))
1327   { }
1328
1329   typename Elf_types<size>::Elf_Addr
1330   get_r_offset() const
1331   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1332
1333   typename Elf_types<size>::Elf_WXword
1334   get_r_info() const
1335   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1336
1337  private:
1338   const internal::Rel_data<size>* p_;
1339 };
1340
1341 // Writer class for an ELF Rel relocation.
1342
1343 template<int size, bool big_endian>
1344 class Rel_write
1345 {
1346  public:
1347   Rel_write(unsigned char* p)
1348     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1349   { }
1350
1351   void
1352   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1353   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1354
1355   void
1356   put_r_info(typename Elf_types<size>::Elf_WXword v)
1357   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1358
1359  private:
1360   internal::Rel_data<size>* p_;
1361 };
1362
1363 // Accessor class for an ELF Rela relocation.
1364
1365 template<int size, bool big_endian>
1366 class Rela
1367 {
1368  public:
1369   Rela(const unsigned char* p)
1370     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1371   { }
1372
1373   template<typename File>
1374   Rela(File* file, typename File::Location loc)
1375     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1376            file->view(loc.file_offset, loc.data_size).data()))
1377   { }
1378
1379   typename Elf_types<size>::Elf_Addr
1380   get_r_offset() const
1381   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1382
1383   typename Elf_types<size>::Elf_WXword
1384   get_r_info() const
1385   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1386
1387   typename Elf_types<size>::Elf_Swxword
1388   get_r_addend() const
1389   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1390
1391  private:
1392   const internal::Rela_data<size>* p_;
1393 };
1394
1395 // Writer class for an ELF Rela relocation.
1396
1397 template<int size, bool big_endian>
1398 class Rela_write
1399 {
1400  public:
1401   Rela_write(unsigned char* p)
1402     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1403   { }
1404
1405   void
1406   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1407   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1408
1409   void
1410   put_r_info(typename Elf_types<size>::Elf_WXword v)
1411   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1412
1413   void
1414   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1415   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1416
1417  private:
1418   internal::Rela_data<size>* p_;
1419 };
1420
1421 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1422 // PT_DYNAMIC segment.
1423
1424 template<int size, bool big_endian>
1425 class Dyn
1426 {
1427  public:
1428   Dyn(const unsigned char* p)
1429     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1430   { }
1431
1432   template<typename File>
1433   Dyn(File* file, typename File::Location loc)
1434     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1435            file->view(loc.file_offset, loc.data_size).data()))
1436   { }
1437
1438   typename Elf_types<size>::Elf_Swxword
1439   get_d_tag() const
1440   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1441
1442   typename Elf_types<size>::Elf_WXword
1443   get_d_val() const
1444   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1445
1446   typename Elf_types<size>::Elf_Addr
1447   get_d_ptr() const
1448   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1449
1450  private:
1451   const internal::Dyn_data<size>* p_;
1452 };
1453
1454 // Write class for an entry in the SHT_DYNAMIC section.
1455
1456 template<int size, bool big_endian>
1457 class Dyn_write
1458 {
1459  public:
1460   Dyn_write(unsigned char* p)
1461     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1462   { }
1463
1464   void
1465   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1466   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1467
1468   void
1469   put_d_val(typename Elf_types<size>::Elf_WXword v)
1470   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1471
1472   void
1473   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1474   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1475
1476  private:
1477   internal::Dyn_data<size>* p_;
1478 };
1479
1480 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1481
1482 template<int size, bool big_endian>
1483 class Verdef
1484 {
1485  public:
1486   Verdef(const unsigned char* p)
1487     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1488   { }
1489
1490   template<typename File>
1491   Verdef(File* file, typename File::Location loc)
1492     : p_(reinterpret_cast<const internal::Verdef_data*>(
1493            file->view(loc.file_offset, loc.data_size).data()))
1494   { }
1495
1496   Elf_Half
1497   get_vd_version() const
1498   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1499
1500   Elf_Half
1501   get_vd_flags() const
1502   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1503
1504   Elf_Half
1505   get_vd_ndx() const
1506   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1507
1508   Elf_Half
1509   get_vd_cnt() const
1510   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1511
1512   Elf_Word
1513   get_vd_hash() const
1514   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1515
1516   Elf_Word
1517   get_vd_aux() const
1518   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1519
1520   Elf_Word
1521   get_vd_next() const
1522   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1523
1524  private:
1525   const internal::Verdef_data* p_;
1526 };
1527
1528 template<int size, bool big_endian>
1529 class Verdef_write
1530 {
1531  public:
1532   Verdef_write(unsigned char* p)
1533     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1534   { }
1535
1536   void
1537   set_vd_version(Elf_Half v)
1538   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1539
1540   void
1541   set_vd_flags(Elf_Half v)
1542   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1543
1544   void
1545   set_vd_ndx(Elf_Half v)
1546   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1547
1548   void
1549   set_vd_cnt(Elf_Half v)
1550   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1551
1552   void
1553   set_vd_hash(Elf_Word v)
1554   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1555
1556   void
1557   set_vd_aux(Elf_Word v)
1558   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1559
1560   void
1561   set_vd_next(Elf_Word v)
1562   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1563
1564  private:
1565   internal::Verdef_data* p_;
1566 };
1567
1568 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1569 // section.
1570
1571 template<int size, bool big_endian>
1572 class Verdaux
1573 {
1574  public:
1575   Verdaux(const unsigned char* p)
1576     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1577   { }
1578
1579   template<typename File>
1580   Verdaux(File* file, typename File::Location loc)
1581     : p_(reinterpret_cast<const internal::Verdaux_data*>(
1582            file->view(loc.file_offset, loc.data_size).data()))
1583   { }
1584
1585   Elf_Word
1586   get_vda_name() const
1587   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
1588
1589   Elf_Word
1590   get_vda_next() const
1591   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
1592
1593  private:
1594   const internal::Verdaux_data* p_;
1595 };
1596
1597 template<int size, bool big_endian>
1598 class Verdaux_write
1599 {
1600  public:
1601   Verdaux_write(unsigned char* p)
1602     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
1603   { }
1604
1605   void
1606   set_vda_name(Elf_Word v)
1607   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
1608
1609   void
1610   set_vda_next(Elf_Word v)
1611   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
1612
1613  private:
1614   internal::Verdaux_data* p_;
1615 };
1616
1617 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
1618
1619 template<int size, bool big_endian>
1620 class Verneed
1621 {
1622  public:
1623   Verneed(const unsigned char* p)
1624     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
1625   { }
1626
1627   template<typename File>
1628   Verneed(File* file, typename File::Location loc)
1629     : p_(reinterpret_cast<const internal::Verneed_data*>(
1630            file->view(loc.file_offset, loc.data_size).data()))
1631   { }
1632
1633   Elf_Half
1634   get_vn_version() const
1635   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
1636
1637   Elf_Half
1638   get_vn_cnt() const
1639   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
1640
1641   Elf_Word
1642   get_vn_file() const
1643   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
1644
1645   Elf_Word
1646   get_vn_aux() const
1647   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
1648
1649   Elf_Word
1650   get_vn_next() const
1651   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
1652
1653  private:
1654   const internal::Verneed_data* p_;
1655 };
1656
1657 template<int size, bool big_endian>
1658 class Verneed_write
1659 {
1660  public:
1661   Verneed_write(unsigned char* p)
1662     : p_(reinterpret_cast<internal::Verneed_data*>(p))
1663   { }
1664
1665   void
1666   set_vn_version(Elf_Half v)
1667   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
1668
1669   void
1670   set_vn_cnt(Elf_Half v)
1671   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
1672
1673   void
1674   set_vn_file(Elf_Word v)
1675   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
1676
1677   void
1678   set_vn_aux(Elf_Word v)
1679   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
1680
1681   void
1682   set_vn_next(Elf_Word v)
1683   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
1684
1685  private:
1686   internal::Verneed_data* p_;
1687 };
1688
1689 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
1690 // section.
1691
1692 template<int size, bool big_endian>
1693 class Vernaux
1694 {
1695  public:
1696   Vernaux(const unsigned char* p)
1697     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
1698   { }
1699
1700   template<typename File>
1701   Vernaux(File* file, typename File::Location loc)
1702     : p_(reinterpret_cast<const internal::Vernaux_data*>(
1703            file->view(loc.file_offset, loc.data_size).data()))
1704   { }
1705
1706   Elf_Word
1707   get_vna_hash() const
1708   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
1709
1710   Elf_Half
1711   get_vna_flags() const
1712   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
1713
1714   Elf_Half
1715   get_vna_other() const
1716   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
1717
1718   Elf_Word
1719   get_vna_name() const
1720   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
1721
1722   Elf_Word
1723   get_vna_next() const
1724   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
1725
1726  private:
1727   const internal::Vernaux_data* p_;
1728 };
1729
1730 template<int size, bool big_endian>
1731 class Vernaux_write
1732 {
1733  public:
1734   Vernaux_write(unsigned char* p)
1735     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
1736   { }
1737
1738   void
1739   set_vna_hash(Elf_Word v)
1740   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
1741
1742   void
1743   set_vna_flags(Elf_Half v)
1744   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
1745
1746   void
1747   set_vna_other(Elf_Half v)
1748   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
1749
1750   void
1751   set_vna_name(Elf_Word v)
1752   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
1753
1754   void
1755   set_vna_next(Elf_Word v)
1756   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
1757
1758  private:
1759   internal::Vernaux_data* p_;
1760 };
1761
1762 } // End namespace elfcpp.
1763
1764 #endif // !defined(ELFPCP_H)