elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright 2006, 2007, 2008, 2009, 2010 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 // A special value found in the Ehdr e_phnum field.
 306
 307 enum
 308 {
 309   // Number of program segments stored in sh_info field of first
 310   // section headre.
 311   PN_XNUM = 0xffff
 312 };
 313
 314 // Special section indices.
 315
 316 enum
 317 {
 318   SHN_UNDEF = 0,
 319   SHN_LORESERVE = 0xff00,
 320   SHN_LOPROC = 0xff00,
 321   SHN_HIPROC = 0xff1f,
 322   SHN_LOOS = 0xff20,
 323   SHN_HIOS = 0xff3f,
 324   SHN_ABS = 0xfff1,
 325   SHN_COMMON = 0xfff2,
 326   SHN_XINDEX = 0xffff,
 327   SHN_HIRESERVE = 0xffff,
 328
 329   // Provide for initial and final section ordering in conjunction
 330   // with the SHF_LINK_ORDER and SHF_ORDERED section flags.
 331   SHN_BEFORE = 0xff00,
 332   SHN_AFTER = 0xff01,
 333
 334   // x86_64 specific large common symbol.
 335   SHN_X86_64_LCOMMON = 0xff02
 336 };
 337
 338 // The valid values found in the Shdr sh_type field.
 339
 340 enum SHT
 341 {
 342   SHT_NULL = 0,
 343   SHT_PROGBITS = 1,
 344   SHT_SYMTAB = 2,
 345   SHT_STRTAB = 3,
 346   SHT_RELA = 4,
 347   SHT_HASH = 5,
 348   SHT_DYNAMIC = 6,
 349   SHT_NOTE = 7,
 350   SHT_NOBITS = 8,
 351   SHT_REL = 9,
 352   SHT_SHLIB = 10,
 353   SHT_DYNSYM = 11,
 354   SHT_INIT_ARRAY = 14,
 355   SHT_FINI_ARRAY = 15,
 356   SHT_PREINIT_ARRAY = 16,
 357   SHT_GROUP = 17,
 358   SHT_SYMTAB_SHNDX = 18,
 359   SHT_LOOS = 0x60000000,
 360   SHT_HIOS = 0x6fffffff,
 361   SHT_LOPROC = 0x70000000,
 362   SHT_HIPROC = 0x7fffffff,
 363   SHT_LOUSER = 0x80000000,
 364   SHT_HIUSER = 0xffffffff,
 365   // The remaining values are not in the standard.
 366   // Incremental build data.
 367   SHT_GNU_INCREMENTAL_INPUTS = 0x6fff4700,
 368   // Object attributes.
 369   SHT_GNU_ATTRIBUTES = 0x6ffffff5,
 370   // GNU style dynamic hash table.
 371   SHT_GNU_HASH = 0x6ffffff6,
 372   // List of prelink dependencies.
 373   SHT_GNU_LIBLIST = 0x6ffffff7,
 374   // Versions defined by file.
 375   SHT_SUNW_verdef = 0x6ffffffd,
 376   SHT_GNU_verdef = 0x6ffffffd,
 377   // Versions needed by file.
 378   SHT_SUNW_verneed = 0x6ffffffe,
 379   SHT_GNU_verneed = 0x6ffffffe,
 380   // Symbol versions,
 381   SHT_SUNW_versym = 0x6fffffff,
 382   SHT_GNU_versym = 0x6fffffff,
 383
 384   SHT_SPARC_GOTDATA = 0x70000000,
 385
 386   // ARM-specific section types.
 387   // Exception Index table.
 388   SHT_ARM_EXIDX = 0x70000001,
 389   // BPABI DLL dynamic linking pre-emption map.
 390   SHT_ARM_PREEMPTMAP = 0x70000002,
 391   // Object file compatibility attributes.
 392   SHT_ARM_ATTRIBUTES = 0x70000003,
 393   // Support for debugging overlaid programs.
 394   SHT_ARM_DEBUGOVERLAY = 0x70000004,
 395   SHT_ARM_OVERLAYSECTION = 0x70000005,
 396
 397   // x86_64 unwind information.
 398   SHT_X86_64_UNWIND = 0x70000001,
 399
 400   // Link editor is to sort the entries in this section based on the
 401   // address specified in the associated symbol table entry.
 402   SHT_ORDERED = 0x7fffffff
 403 };
 404
 405 // The valid bit flags found in the Shdr sh_flags field.
 406
 407 enum SHF
 408 {
 409   SHF_WRITE = 0x1,
 410   SHF_ALLOC = 0x2,
 411   SHF_EXECINSTR = 0x4,
 412   SHF_MERGE = 0x10,
 413   SHF_STRINGS = 0x20,
 414   SHF_INFO_LINK = 0x40,
 415   SHF_LINK_ORDER = 0x80,
 416   SHF_OS_NONCONFORMING = 0x100,
 417   SHF_GROUP = 0x200,
 418   SHF_TLS = 0x400,
 419   SHF_MASKOS = 0x0ff00000,
 420   SHF_MASKPROC = 0xf0000000,
 421
 422   // Indicates this section requires ordering in relation to
 423   // other sections of the same type.  Ordered sections are
 424   // combined within the section pointed to by the sh_link entry.
 425   // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
 426   // sorted section is to precede or follow, respectively, all
 427   // other sections in the set being ordered.
 428   SHF_ORDERED = 0x40000000,
 429   // This section is excluded from input to the link-edit of an
 430   // executable or shared object.  This flag is ignored if SHF_ALLOC
 431   // is also set, or if relocations exist against the section.
 432   SHF_EXCLUDE = 0x80000000,
 433
 434   // x86_64 specific large section.
 435   SHF_X86_64_LARGE = 0x10000000
 436 };
 437
 438 // Bit flags which appear in the first 32-bit word of the section data
 439 // of a SHT_GROUP section.
 440
 441 enum
 442 {
 443   GRP_COMDAT = 0x1,
 444   GRP_MASKOS = 0x0ff00000,
 445   GRP_MASKPROC = 0xf0000000
 446 };
 447
 448 // The valid values found in the Phdr p_type field.
 449
 450 enum PT
 451 {
 452   PT_NULL = 0,
 453   PT_LOAD = 1,
 454   PT_DYNAMIC = 2,
 455   PT_INTERP = 3,
 456   PT_NOTE = 4,
 457   PT_SHLIB = 5,
 458   PT_PHDR = 6,
 459   PT_TLS = 7,
 460   PT_LOOS = 0x60000000,
 461   PT_HIOS = 0x6fffffff,
 462   PT_LOPROC = 0x70000000,
 463   PT_HIPROC = 0x7fffffff,
 464   // The remaining values are not in the standard.
 465   // Frame unwind information.
 466   PT_GNU_EH_FRAME = 0x6474e550,
 467   PT_SUNW_EH_FRAME = 0x6474e550,
 468   // Stack flags.
 469   PT_GNU_STACK = 0x6474e551,
 470   // Read only after relocation.
 471   PT_GNU_RELRO = 0x6474e552,
 472   // Platform architecture compatibility information
 473   PT_ARM_ARCHEXT = 0x70000000,
 474   // Exception unwind tables
 475   PT_ARM_EXIDX = 0x70000001
 476 };
 477
 478 // The valid bit flags found in the Phdr p_flags field.
 479
 480 enum PF
 481 {
 482   PF_X = 0x1,
 483   PF_W = 0x2,
 484   PF_R = 0x4,
 485   PF_MASKOS = 0x0ff00000,
 486   PF_MASKPROC = 0xf0000000
 487 };
 488
 489 // Symbol binding from Sym st_info field.
 490
 491 enum STB
 492 {
 493   STB_LOCAL = 0,
 494   STB_GLOBAL = 1,
 495   STB_WEAK = 2,
 496   STB_LOOS = 10,
 497   STB_GNU_UNIQUE = 10,
 498   STB_HIOS = 12,
 499   STB_LOPROC = 13,
 500   STB_HIPROC = 15
 501 };
 502
 503 // Symbol types from Sym st_info field.
 504
 505 enum STT
 506 {
 507   STT_NOTYPE = 0,
 508   STT_OBJECT = 1,
 509   STT_FUNC = 2,
 510   STT_SECTION = 3,
 511   STT_FILE = 4,
 512   STT_COMMON = 5,
 513   STT_TLS = 6,
 514   STT_LOOS = 10,
 515   STT_GNU_IFUNC = 10,
 516   STT_HIOS = 12,
 517   STT_LOPROC = 13,
 518   STT_HIPROC = 15,
 519
 520   // The section type that must be used for register symbols on
 521   // Sparc.  These symbols initialize a global register.
 522   STT_SPARC_REGISTER = 13,
 523
 524   // ARM: a THUMB function.  This is not defined in ARM ELF Specification but
 525   // used by the GNU tool-chain.
 526   STT_ARM_TFUNC = 13
 527 };
 528
 529 inline STB
 530 elf_st_bind(unsigned char info)
 531 {
 532   return static_cast<STB>(info >> 4);
 533 }
 534
 535 inline STT
 536 elf_st_type(unsigned char info)
 537 {
 538   return static_cast<STT>(info & 0xf);
 539 }
 540
 541 inline unsigned char
 542 elf_st_info(STB bind, STT type)
 543 {
 544   return ((static_cast<unsigned char>(bind) << 4)
 545           + (static_cast<unsigned char>(type) & 0xf));
 546 }
 547
 548 // Symbol visibility from Sym st_other field.
 549
 550 enum STV
 551 {
 552   STV_DEFAULT = 0,
 553   STV_INTERNAL = 1,
 554   STV_HIDDEN = 2,
 555   STV_PROTECTED = 3
 556 };
 557
 558 inline STV
 559 elf_st_visibility(unsigned char other)
 560 {
 561   return static_cast<STV>(other & 0x3);
 562 }
 563
 564 inline unsigned char
 565 elf_st_nonvis(unsigned char other)
 566 {
 567   return static_cast<STV>(other >> 2);
 568 }
 569
 570 inline unsigned char
 571 elf_st_other(STV vis, unsigned char nonvis)
 572 {
 573   return ((nonvis << 2)
 574           + (static_cast<unsigned char>(vis) & 3));
 575 }
 576
 577 // Reloc information from Rel/Rela r_info field.
 578
 579 template<int size>
 580 unsigned int
 581 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 582
 583 template<>
 584 inline unsigned int
 585 elf_r_sym<32>(Elf_Word v)
 586 {
 587   return v >> 8;
 588 }
 589
 590 template<>
 591 inline unsigned int
 592 elf_r_sym<64>(Elf_Xword v)
 593 {
 594   return v >> 32;
 595 }
 596
 597 template<int size>
 598 unsigned int
 599 elf_r_type(typename Elf_types<size>::Elf_WXword);
 600
 601 template<>
 602 inline unsigned int
 603 elf_r_type<32>(Elf_Word v)
 604 {
 605   return v & 0xff;
 606 }
 607
 608 template<>
 609 inline unsigned int
 610 elf_r_type<64>(Elf_Xword v)
 611 {
 612   return v & 0xffffffff;
 613 }
 614
 615 template<int size>
 616 typename Elf_types<size>::Elf_WXword
 617 elf_r_info(unsigned int s, unsigned int t);
 618
 619 template<>
 620 inline Elf_Word
 621 elf_r_info<32>(unsigned int s, unsigned int t)
 622 {
 623   return (s << 8) + (t & 0xff);
 624 }
 625
 626 template<>
 627 inline Elf_Xword
 628 elf_r_info<64>(unsigned int s, unsigned int t)
 629 {
 630   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 631 }
 632
 633 // Dynamic tags found in the PT_DYNAMIC segment.
 634
 635 enum DT
 636 {
 637   DT_NULL = 0,
 638   DT_NEEDED = 1,
 639   DT_PLTRELSZ = 2,
 640   DT_PLTGOT = 3,
 641   DT_HASH = 4,
 642   DT_STRTAB = 5,
 643   DT_SYMTAB = 6,
 644   DT_RELA = 7,
 645   DT_RELASZ = 8,
 646   DT_RELAENT = 9,
 647   DT_STRSZ = 10,
 648   DT_SYMENT = 11,
 649   DT_INIT = 12,
 650   DT_FINI = 13,
 651   DT_SONAME = 14,
 652   DT_RPATH = 15,
 653   DT_SYMBOLIC = 16,
 654   DT_REL = 17,
 655   DT_RELSZ = 18,
 656   DT_RELENT = 19,
 657   DT_PLTREL = 20,
 658   DT_DEBUG = 21,
 659   DT_TEXTREL = 22,
 660   DT_JMPREL = 23,
 661   DT_BIND_NOW = 24,
 662   DT_INIT_ARRAY = 25,
 663   DT_FINI_ARRAY = 26,
 664   DT_INIT_ARRAYSZ = 27,
 665   DT_FINI_ARRAYSZ = 28,
 666   DT_RUNPATH = 29,
 667   DT_FLAGS = 30,
 668
 669   // This is used to mark a range of dynamic tags.  It is not really
 670   // a tag value.
 671   DT_ENCODING = 32,
 672
 673   DT_PREINIT_ARRAY = 32,
 674   DT_PREINIT_ARRAYSZ = 33,
 675   DT_LOOS = 0x6000000d,
 676   DT_HIOS = 0x6ffff000,
 677   DT_LOPROC = 0x70000000,
 678   DT_HIPROC = 0x7fffffff,
 679
 680   // The remaining values are extensions used by GNU or Solaris.
 681   DT_VALRNGLO = 0x6ffffd00,
 682   DT_GNU_PRELINKED = 0x6ffffdf5,
 683   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 684   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 685   DT_CHECKSUM = 0x6ffffdf8,
 686   DT_PLTPADSZ = 0x6ffffdf9,
 687   DT_MOVEENT = 0x6ffffdfa,
 688   DT_MOVESZ = 0x6ffffdfb,
 689   DT_FEATURE = 0x6ffffdfc,
 690   DT_POSFLAG_1 = 0x6ffffdfd,
 691   DT_SYMINSZ = 0x6ffffdfe,
 692   DT_SYMINENT = 0x6ffffdff,
 693   DT_VALRNGHI = 0x6ffffdff,
 694
 695   DT_ADDRRNGLO = 0x6ffffe00,
 696   DT_GNU_HASH = 0x6ffffef5,
 697   DT_TLSDESC_PLT = 0x6ffffef6,
 698   DT_TLSDESC_GOT = 0x6ffffef7,
 699   DT_GNU_CONFLICT = 0x6ffffef8,
 700   DT_GNU_LIBLIST = 0x6ffffef9,
 701   DT_CONFIG = 0x6ffffefa,
 702   DT_DEPAUDIT = 0x6ffffefb,
 703   DT_AUDIT = 0x6ffffefc,
 704   DT_PLTPAD = 0x6ffffefd,
 705   DT_MOVETAB = 0x6ffffefe,
 706   DT_SYMINFO = 0x6ffffeff,
 707   DT_ADDRRNGHI = 0x6ffffeff,
 708
 709   DT_RELACOUNT = 0x6ffffff9,
 710   DT_RELCOUNT = 0x6ffffffa,
 711   DT_FLAGS_1 = 0x6ffffffb,
 712   DT_VERDEF = 0x6ffffffc,
 713   DT_VERDEFNUM = 0x6ffffffd,
 714   DT_VERNEED = 0x6ffffffe,
 715   DT_VERNEEDNUM = 0x6fffffff,
 716
 717   DT_VERSYM = 0x6ffffff0,
 718
 719   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 720   DT_PPC_GOT = 0x70000000,
 721
 722   // Specify the start of the .glink section.
 723   DT_PPC64_GLINK = 0x70000000,
 724
 725   // Specify the start and size of the .opd section.
 726   DT_PPC64_OPD = 0x70000001,
 727   DT_PPC64_OPDSZ = 0x70000002,
 728
 729   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 730   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 731   // symbol in the symbol table.
 732   DT_SPARC_REGISTER = 0x70000001,
 733
 734   DT_AUXILIARY = 0x7ffffffd,
 735   DT_USED = 0x7ffffffe,
 736   DT_FILTER = 0x7fffffff
 737 };
 738
 739 // Flags found in the DT_FLAGS dynamic element.
 740
 741 enum DF
 742 {
 743   DF_ORIGIN = 0x1,
 744   DF_SYMBOLIC = 0x2,
 745   DF_TEXTREL = 0x4,
 746   DF_BIND_NOW = 0x8,
 747   DF_STATIC_TLS = 0x10
 748 };
 749
 750 // Flags found in the DT_FLAGS_1 dynamic element.
 751
 752 enum DF_1
 753 {
 754   DF_1_NOW = 0x1,
 755   DF_1_GLOBAL = 0x2,
 756   DF_1_GROUP = 0x4,
 757   DF_1_NODELETE = 0x8,
 758   DF_1_LOADFLTR = 0x10,
 759   DF_1_INITFIRST = 0x20,
 760   DF_1_NOOPEN = 0x40,
 761   DF_1_ORIGIN = 0x80,
 762   DF_1_DIRECT = 0x100,
 763   DF_1_TRANS = 0x200,
 764   DF_1_INTERPOSE = 0x400,
 765   DF_1_NODEFLIB = 0x800,
 766   DF_1_NODUMP = 0x1000,
 767   DF_1_CONLFAT = 0x2000
 768 };
 769
 770 // Version numbers which appear in the vd_version field of a Verdef
 771 // structure.
 772
 773 const int VER_DEF_NONE = 0;
 774 const int VER_DEF_CURRENT = 1;
 775
 776 // Version numbers which appear in the vn_version field of a Verneed
 777 // structure.
 778
 779 const int VER_NEED_NONE = 0;
 780 const int VER_NEED_CURRENT = 1;
 781
 782 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 783 // Vernaux.
 784
 785 const int VER_FLG_BASE = 0x1;
 786 const int VER_FLG_WEAK = 0x2;
 787 const int VER_FLG_INFO = 0x4;
 788
 789 // Special constants found in the SHT_GNU_versym entries.
 790
 791 const int VER_NDX_LOCAL = 0;
 792 const int VER_NDX_GLOBAL = 1;
 793
 794 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 795 // the symbol is hidden and can only be seen when referenced using an
 796 // explicit version number.  This is a GNU extension.
 797
 798 const int VERSYM_HIDDEN = 0x8000;
 799
 800 // This is the mask for the rest of the data in a word read from a
 801 // SHT_GNU_versym section.
 802
 803 const int VERSYM_VERSION = 0x7fff;
 804
 805 // Note descriptor type codes for notes in a non-core file with an
 806 // empty name.
 807
 808 enum
 809 {
 810   // A version string.
 811   NT_VERSION = 1,
 812   // An architecture string.
 813   NT_ARCH = 2
 814 };
 815
 816 // Note descriptor type codes for notes in a non-core file with the
 817 // name "GNU".
 818
 819 enum
 820 {
 821   // The minimum ABI level.  This is used by the dynamic linker to
 822   // describe the minimal kernel version on which a shared library may
 823   // be used.  Th value should be four words.  Word 0 is an OS
 824   // descriptor (see below).  Word 1 is the major version of the ABI.
 825   // Word 2 is the minor version.  Word 3 is the subminor version.
 826   NT_GNU_ABI_TAG = 1,
 827   // Hardware capabilities information.  Word 0 is the number of
 828   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 829   // the descriptor is a series of entries, where each entry is a
 830   // single byte followed by a nul terminated string.  The byte gives
 831   // the bit number to test if enabled in the bitmask.
 832   NT_GNU_HWCAP = 2,
 833   // The build ID as set by the linker's --build-id option.  The
 834   // format of the descriptor depends on the build ID style.
 835   NT_GNU_BUILD_ID = 3,
 836   // The version of gold used to link.  Th descriptor is just a
 837   // string.
 838   NT_GNU_GOLD_VERSION = 4
 839 };
 840
 841 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 842
 843 enum
 844 {
 845   ELF_NOTE_OS_LINUX = 0,
 846   ELF_NOTE_OS_GNU = 1,
 847   ELF_NOTE_OS_SOLARIS2 = 2,
 848   ELF_NOTE_OS_FREEBSD = 3,
 849   ELF_NOTE_OS_NETBSD = 4,
 850   ELF_NOTE_OS_SYLLABLE = 5
 851 };
 852
 853 } // End namespace elfcpp.
 854
 855 // Include internal details after defining the types.
 856 #include "elfcpp_internal.h"
 857
 858 namespace elfcpp
 859 {
 860
 861 // The offset of the ELF file header in the ELF file.
 862
 863 const int file_header_offset = 0;
 864
 865 // ELF structure sizes.
 866
 867 template<int size>
 868 struct Elf_sizes
 869 {
 870   // Size of ELF file header.
 871   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
 872   // Size of ELF segment header.
 873   static const int phdr_size = sizeof(internal::Phdr_data<size>);
 874   // Size of ELF section header.
 875   static const int shdr_size = sizeof(internal::Shdr_data<size>);
 876   // Size of ELF symbol table entry.
 877   static const int sym_size = sizeof(internal::Sym_data<size>);
 878   // Sizes of ELF reloc entries.
 879   static const int rel_size = sizeof(internal::Rel_data<size>);
 880   static const int rela_size = sizeof(internal::Rela_data<size>);
 881   // Size of ELF dynamic entry.
 882   static const int dyn_size = sizeof(internal::Dyn_data<size>);
 883   // Size of ELF version structures.
 884   static const int verdef_size = sizeof(internal::Verdef_data);
 885   static const int verdaux_size = sizeof(internal::Verdaux_data);
 886   static const int verneed_size = sizeof(internal::Verneed_data);
 887   static const int vernaux_size = sizeof(internal::Vernaux_data);
 888 };
 889
 890 // Accessor class for the ELF file header.
 891
 892 template<int size, bool big_endian>
 893 class Ehdr
 894 {
 895  public:
 896   Ehdr(const unsigned char* p)
 897     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
 898   { }
 899
 900   template<typename File>
 901   Ehdr(File* file, typename File::Location loc)
 902     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
 903            file->view(loc.file_offset, loc.data_size).data()))
 904   { }
 905
 906   const unsigned char*
 907   get_e_ident() const
 908   { return this->p_->e_ident; }
 909
 910   Elf_Half
 911   get_e_type() const
 912   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
 913
 914   Elf_Half
 915   get_e_machine() const
 916   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
 917
 918   Elf_Word
 919   get_e_version() const
 920   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
 921
 922   typename Elf_types<size>::Elf_Addr
 923   get_e_entry() const
 924   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
 925
 926   typename Elf_types<size>::Elf_Off
 927   get_e_phoff() const
 928   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
 929
 930   typename Elf_types<size>::Elf_Off
 931   get_e_shoff() const
 932   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
 933
 934   Elf_Word
 935   get_e_flags() const
 936   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
 937
 938   Elf_Half
 939   get_e_ehsize() const
 940   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
 941
 942   Elf_Half
 943   get_e_phentsize() const
 944   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
 945
 946   Elf_Half
 947   get_e_phnum() const
 948   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
 949
 950   Elf_Half
 951   get_e_shentsize() const
 952   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
 953
 954   Elf_Half
 955   get_e_shnum() const
 956   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
 957
 958   Elf_Half
 959   get_e_shstrndx() const
 960   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
 961
 962  private:
 963   const internal::Ehdr_data<size>* p_;
 964 };
 965
 966 // Write class for the ELF file header.
 967
 968 template<int size, bool big_endian>
 969 class Ehdr_write
 970 {
 971  public:
 972   Ehdr_write(unsigned char* p)
 973     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
 974   { }
 975
 976   void
 977   put_e_ident(const unsigned char v[EI_NIDENT]) const
 978   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
 979
 980   void
 981   put_e_type(Elf_Half v)
 982   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
 983
 984   void
 985   put_e_machine(Elf_Half v)
 986   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
 987
 988   void
 989   put_e_version(Elf_Word v)
 990   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
 991
 992   void
 993   put_e_entry(typename Elf_types<size>::Elf_Addr v)
 994   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
 995
 996   void
 997   put_e_phoff(typename Elf_types<size>::Elf_Off v)
 998   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
 999
1000   void
1001   put_e_shoff(typename Elf_types<size>::Elf_Off v)
1002   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
1003
1004   void
1005   put_e_flags(Elf_Word v)
1006   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
1007
1008   void
1009   put_e_ehsize(Elf_Half v)
1010   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
1011
1012   void
1013   put_e_phentsize(Elf_Half v)
1014   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
1015
1016   void
1017   put_e_phnum(Elf_Half v)
1018   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
1019
1020   void
1021   put_e_shentsize(Elf_Half v)
1022   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
1023
1024   void
1025   put_e_shnum(Elf_Half v)
1026   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
1027
1028   void
1029   put_e_shstrndx(Elf_Half v)
1030   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
1031
1032  private:
1033   internal::Ehdr_data<size>* p_;
1034 };
1035
1036 // Accessor class for an ELF section header.
1037
1038 template<int size, bool big_endian>
1039 class Shdr
1040 {
1041  public:
1042   Shdr(const unsigned char* p)
1043     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
1044   { }
1045
1046   template<typename File>
1047   Shdr(File* file, typename File::Location loc)
1048     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1049            file->view(loc.file_offset, loc.data_size).data()))
1050   { }
1051
1052   Elf_Word
1053   get_sh_name() const
1054   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1055
1056   Elf_Word
1057   get_sh_type() const
1058   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1059
1060   typename Elf_types<size>::Elf_WXword
1061   get_sh_flags() const
1062   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1063
1064   typename Elf_types<size>::Elf_Addr
1065   get_sh_addr() const
1066   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1067
1068   typename Elf_types<size>::Elf_Off
1069   get_sh_offset() const
1070   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1071
1072   typename Elf_types<size>::Elf_WXword
1073   get_sh_size() const
1074   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1075
1076   Elf_Word
1077   get_sh_link() const
1078   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1079
1080   Elf_Word
1081   get_sh_info() const
1082   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1083
1084   typename Elf_types<size>::Elf_WXword
1085   get_sh_addralign() const
1086   { return
1087       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1088
1089   typename Elf_types<size>::Elf_WXword
1090   get_sh_entsize() const
1091   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1092
1093  private:
1094   const internal::Shdr_data<size>* p_;
1095 };
1096
1097 // Write class for an ELF section header.
1098
1099 template<int size, bool big_endian>
1100 class Shdr_write
1101 {
1102  public:
1103   Shdr_write(unsigned char* p)
1104     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1105   { }
1106
1107   void
1108   put_sh_name(Elf_Word v)
1109   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1110
1111   void
1112   put_sh_type(Elf_Word v)
1113   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1114
1115   void
1116   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1117   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1118
1119   void
1120   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1121   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1122
1123   void
1124   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1125   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1126
1127   void
1128   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1129   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1130
1131   void
1132   put_sh_link(Elf_Word v)
1133   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1134
1135   void
1136   put_sh_info(Elf_Word v)
1137   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1138
1139   void
1140   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1141   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1142
1143   void
1144   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1145   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1146
1147  private:
1148   internal::Shdr_data<size>* p_;
1149 };
1150
1151 // Accessor class for an ELF segment header.
1152
1153 template<int size, bool big_endian>
1154 class Phdr
1155 {
1156  public:
1157   Phdr(const unsigned char* p)
1158     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1159   { }
1160
1161   template<typename File>
1162   Phdr(File* file, typename File::Location loc)
1163     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1164            file->view(loc.file_offset, loc.data_size).data()))
1165   { }
1166
1167   Elf_Word
1168   get_p_type() const
1169   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1170
1171   typename Elf_types<size>::Elf_Off
1172   get_p_offset() const
1173   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1174
1175   typename Elf_types<size>::Elf_Addr
1176   get_p_vaddr() const
1177   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1178
1179   typename Elf_types<size>::Elf_Addr
1180   get_p_paddr() const
1181   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1182
1183   typename Elf_types<size>::Elf_WXword
1184   get_p_filesz() const
1185   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1186
1187   typename Elf_types<size>::Elf_WXword
1188   get_p_memsz() const
1189   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1190
1191   Elf_Word
1192   get_p_flags() const
1193   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1194
1195   typename Elf_types<size>::Elf_WXword
1196   get_p_align() const
1197   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1198
1199  private:
1200   const internal::Phdr_data<size>* p_;
1201 };
1202
1203 // Write class for an ELF segment header.
1204
1205 template<int size, bool big_endian>
1206 class Phdr_write
1207 {
1208  public:
1209   Phdr_write(unsigned char* p)
1210     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1211   { }
1212
1213   void
1214   put_p_type(Elf_Word v)
1215   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1216
1217   void
1218   put_p_offset(typename Elf_types<size>::Elf_Off v)
1219   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1220
1221   void
1222   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1223   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1224
1225   void
1226   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1227   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1228
1229   void
1230   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1231   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1232
1233   void
1234   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1235   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1236
1237   void
1238   put_p_flags(Elf_Word v)
1239   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1240
1241   void
1242   put_p_align(typename Elf_types<size>::Elf_WXword v)
1243   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1244
1245  private:
1246   internal::Phdr_data<size>* p_;
1247 };
1248
1249 // Accessor class for an ELF symbol table entry.
1250
1251 template<int size, bool big_endian>
1252 class Sym
1253 {
1254  public:
1255   Sym(const unsigned char* p)
1256     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1257   { }
1258
1259   template<typename File>
1260   Sym(File* file, typename File::Location loc)
1261     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1262            file->view(loc.file_offset, loc.data_size).data()))
1263   { }
1264
1265   Elf_Word
1266   get_st_name() const
1267   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1268
1269   typename Elf_types<size>::Elf_Addr
1270   get_st_value() const
1271   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1272
1273   typename Elf_types<size>::Elf_WXword
1274   get_st_size() const
1275   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1276
1277   unsigned char
1278   get_st_info() const
1279   { return this->p_->st_info; }
1280
1281   STB
1282   get_st_bind() const
1283   { return elf_st_bind(this->get_st_info()); }
1284
1285   STT
1286   get_st_type() const
1287   { return elf_st_type(this->get_st_info()); }
1288
1289   unsigned char
1290   get_st_other() const
1291   { return this->p_->st_other; }
1292
1293   STV
1294   get_st_visibility() const
1295   { return elf_st_visibility(this->get_st_other()); }
1296
1297   unsigned char
1298   get_st_nonvis() const
1299   { return elf_st_nonvis(this->get_st_other()); }
1300
1301   Elf_Half
1302   get_st_shndx() const
1303   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1304
1305  private:
1306   const internal::Sym_data<size>* p_;
1307 };
1308
1309 // Writer class for an ELF symbol table entry.
1310
1311 template<int size, bool big_endian>
1312 class Sym_write
1313 {
1314  public:
1315   Sym_write(unsigned char* p)
1316     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1317   { }
1318
1319   void
1320   put_st_name(Elf_Word v)
1321   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1322
1323   void
1324   put_st_value(typename Elf_types<size>::Elf_Addr v)
1325   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1326
1327   void
1328   put_st_size(typename Elf_types<size>::Elf_WXword v)
1329   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1330
1331   void
1332   put_st_info(unsigned char v)
1333   { this->p_->st_info = v; }
1334
1335   void
1336   put_st_info(STB bind, STT type)
1337   { this->p_->st_info = elf_st_info(bind, type); }
1338
1339   void
1340   put_st_other(unsigned char v)
1341   { this->p_->st_other = v; }
1342
1343   void
1344   put_st_other(STV vis, unsigned char nonvis)
1345   { this->p_->st_other = elf_st_other(vis, nonvis); }
1346
1347   void
1348   put_st_shndx(Elf_Half v)
1349   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1350
1351   Sym<size, big_endian>
1352   sym()
1353   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1354
1355  private:
1356   internal::Sym_data<size>* p_;
1357 };
1358
1359 // Accessor classes for an ELF REL relocation entry.
1360
1361 template<int size, bool big_endian>
1362 class Rel
1363 {
1364  public:
1365   Rel(const unsigned char* p)
1366     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1367   { }
1368
1369   template<typename File>
1370   Rel(File* file, typename File::Location loc)
1371     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1372            file->view(loc.file_offset, loc.data_size).data()))
1373   { }
1374
1375   typename Elf_types<size>::Elf_Addr
1376   get_r_offset() const
1377   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1378
1379   typename Elf_types<size>::Elf_WXword
1380   get_r_info() const
1381   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1382
1383  private:
1384   const internal::Rel_data<size>* p_;
1385 };
1386
1387 // Writer class for an ELF Rel relocation.
1388
1389 template<int size, bool big_endian>
1390 class Rel_write
1391 {
1392  public:
1393   Rel_write(unsigned char* p)
1394     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1395   { }
1396
1397   void
1398   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1399   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1400
1401   void
1402   put_r_info(typename Elf_types<size>::Elf_WXword v)
1403   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1404
1405  private:
1406   internal::Rel_data<size>* p_;
1407 };
1408
1409 // Accessor class for an ELF Rela relocation.
1410
1411 template<int size, bool big_endian>
1412 class Rela
1413 {
1414  public:
1415   Rela(const unsigned char* p)
1416     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1417   { }
1418
1419   template<typename File>
1420   Rela(File* file, typename File::Location loc)
1421     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1422            file->view(loc.file_offset, loc.data_size).data()))
1423   { }
1424
1425   typename Elf_types<size>::Elf_Addr
1426   get_r_offset() const
1427   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1428
1429   typename Elf_types<size>::Elf_WXword
1430   get_r_info() const
1431   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1432
1433   typename Elf_types<size>::Elf_Swxword
1434   get_r_addend() const
1435   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1436
1437  private:
1438   const internal::Rela_data<size>* p_;
1439 };
1440
1441 // Writer class for an ELF Rela relocation.
1442
1443 template<int size, bool big_endian>
1444 class Rela_write
1445 {
1446  public:
1447   Rela_write(unsigned char* p)
1448     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1449   { }
1450
1451   void
1452   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1453   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1454
1455   void
1456   put_r_info(typename Elf_types<size>::Elf_WXword v)
1457   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1458
1459   void
1460   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1461   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1462
1463  private:
1464   internal::Rela_data<size>* p_;
1465 };
1466
1467 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1468 // PT_DYNAMIC segment.
1469
1470 template<int size, bool big_endian>
1471 class Dyn
1472 {
1473  public:
1474   Dyn(const unsigned char* p)
1475     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1476   { }
1477
1478   template<typename File>
1479   Dyn(File* file, typename File::Location loc)
1480     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1481            file->view(loc.file_offset, loc.data_size).data()))
1482   { }
1483
1484   typename Elf_types<size>::Elf_Swxword
1485   get_d_tag() const
1486   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1487
1488   typename Elf_types<size>::Elf_WXword
1489   get_d_val() const
1490   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1491
1492   typename Elf_types<size>::Elf_Addr
1493   get_d_ptr() const
1494   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1495
1496  private:
1497   const internal::Dyn_data<size>* p_;
1498 };
1499
1500 // Write class for an entry in the SHT_DYNAMIC section.
1501
1502 template<int size, bool big_endian>
1503 class Dyn_write
1504 {
1505  public:
1506   Dyn_write(unsigned char* p)
1507     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1508   { }
1509
1510   void
1511   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1512   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1513
1514   void
1515   put_d_val(typename Elf_types<size>::Elf_WXword v)
1516   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1517
1518   void
1519   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1520   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1521
1522  private:
1523   internal::Dyn_data<size>* p_;
1524 };
1525
1526 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1527
1528 template<int size, bool big_endian>
1529 class Verdef
1530 {
1531  public:
1532   Verdef(const unsigned char* p)
1533     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1534   { }
1535
1536   template<typename File>
1537   Verdef(File* file, typename File::Location loc)
1538     : p_(reinterpret_cast<const internal::Verdef_data*>(
1539            file->view(loc.file_offset, loc.data_size).data()))
1540   { }
1541
1542   Elf_Half
1543   get_vd_version() const
1544   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1545
1546   Elf_Half
1547   get_vd_flags() const
1548   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1549
1550   Elf_Half
1551   get_vd_ndx() const
1552   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1553
1554   Elf_Half
1555   get_vd_cnt() const
1556   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1557
1558   Elf_Word
1559   get_vd_hash() const
1560   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1561
1562   Elf_Word
1563   get_vd_aux() const
1564   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1565
1566   Elf_Word
1567   get_vd_next() const
1568   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1569
1570  private:
1571   const internal::Verdef_data* p_;
1572 };
1573
1574 template<int size, bool big_endian>
1575 class Verdef_write
1576 {
1577  public:
1578   Verdef_write(unsigned char* p)
1579     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1580   { }
1581
1582   void
1583   set_vd_version(Elf_Half v)
1584   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1585
1586   void
1587   set_vd_flags(Elf_Half v)
1588   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1589
1590   void
1591   set_vd_ndx(Elf_Half v)
1592   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1593
1594   void
1595   set_vd_cnt(Elf_Half v)
1596   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1597
1598   void
1599   set_vd_hash(Elf_Word v)
1600   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1601
1602   void
1603   set_vd_aux(Elf_Word v)
1604   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1605
1606   void
1607   set_vd_next(Elf_Word v)
1608   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1609
1610  private:
1611   internal::Verdef_data* p_;
1612 };
1613
1614 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1615 // section.
1616
1617 template<int size, bool big_endian>
1618 class Verdaux
1619 {
1620  public:
1621   Verdaux(const unsigned char* p)
1622     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1623   { }
1624
1625   template<typename File>
1626   Verdaux(File* file, typename File::Location loc)
1627     : p_(reinterpret_cast<const internal::Verdaux_data*>(
1628            file->view(loc.file_offset, loc.data_size).data()))
1629   { }
1630
1631   Elf_Word
1632   get_vda_name() const
1633   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
1634
1635   Elf_Word
1636   get_vda_next() const
1637   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
1638
1639  private:
1640   const internal::Verdaux_data* p_;
1641 };
1642
1643 template<int size, bool big_endian>
1644 class Verdaux_write
1645 {
1646  public:
1647   Verdaux_write(unsigned char* p)
1648     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
1649   { }
1650
1651   void
1652   set_vda_name(Elf_Word v)
1653   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
1654
1655   void
1656   set_vda_next(Elf_Word v)
1657   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
1658
1659  private:
1660   internal::Verdaux_data* p_;
1661 };
1662
1663 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
1664
1665 template<int size, bool big_endian>
1666 class Verneed
1667 {
1668  public:
1669   Verneed(const unsigned char* p)
1670     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
1671   { }
1672
1673   template<typename File>
1674   Verneed(File* file, typename File::Location loc)
1675     : p_(reinterpret_cast<const internal::Verneed_data*>(
1676            file->view(loc.file_offset, loc.data_size).data()))
1677   { }
1678
1679   Elf_Half
1680   get_vn_version() const
1681   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
1682
1683   Elf_Half
1684   get_vn_cnt() const
1685   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
1686
1687   Elf_Word
1688   get_vn_file() const
1689   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
1690
1691   Elf_Word
1692   get_vn_aux() const
1693   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
1694
1695   Elf_Word
1696   get_vn_next() const
1697   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
1698
1699  private:
1700   const internal::Verneed_data* p_;
1701 };
1702
1703 template<int size, bool big_endian>
1704 class Verneed_write
1705 {
1706  public:
1707   Verneed_write(unsigned char* p)
1708     : p_(reinterpret_cast<internal::Verneed_data*>(p))
1709   { }
1710
1711   void
1712   set_vn_version(Elf_Half v)
1713   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
1714
1715   void
1716   set_vn_cnt(Elf_Half v)
1717   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
1718
1719   void
1720   set_vn_file(Elf_Word v)
1721   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
1722
1723   void
1724   set_vn_aux(Elf_Word v)
1725   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
1726
1727   void
1728   set_vn_next(Elf_Word v)
1729   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
1730
1731  private:
1732   internal::Verneed_data* p_;
1733 };
1734
1735 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
1736 // section.
1737
1738 template<int size, bool big_endian>
1739 class Vernaux
1740 {
1741  public:
1742   Vernaux(const unsigned char* p)
1743     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
1744   { }
1745
1746   template<typename File>
1747   Vernaux(File* file, typename File::Location loc)
1748     : p_(reinterpret_cast<const internal::Vernaux_data*>(
1749            file->view(loc.file_offset, loc.data_size).data()))
1750   { }
1751
1752   Elf_Word
1753   get_vna_hash() const
1754   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
1755
1756   Elf_Half
1757   get_vna_flags() const
1758   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
1759
1760   Elf_Half
1761   get_vna_other() const
1762   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
1763
1764   Elf_Word
1765   get_vna_name() const
1766   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
1767
1768   Elf_Word
1769   get_vna_next() const
1770   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
1771
1772  private:
1773   const internal::Vernaux_data* p_;
1774 };
1775
1776 template<int size, bool big_endian>
1777 class Vernaux_write
1778 {
1779  public:
1780   Vernaux_write(unsigned char* p)
1781     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
1782   { }
1783
1784   void
1785   set_vna_hash(Elf_Word v)
1786   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
1787
1788   void
1789   set_vna_flags(Elf_Half v)
1790   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
1791
1792   void
1793   set_vna_other(Elf_Half v)
1794   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
1795
1796   void
1797   set_vna_name(Elf_Word v)
1798   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
1799
1800   void
1801   set_vna_next(Elf_Word v)
1802   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
1803
1804  private:
1805   internal::Vernaux_data* p_;
1806 };
1807
1808 } // End namespace elfcpp.
1809
1810 #endif // !defined(ELFPCP_H)