elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012
   4 // Free Software Foundation, Inc.
   5 // Written by Ian Lance Taylor <iant@google.com>.
   6
   7 // This file is part of elfcpp.
   8
   9 // This program is free software; you can redistribute it and/or
  10 // modify it under the terms of the GNU Library General Public License
  11 // as published by the Free Software Foundation; either version 2, or
  12 // (at your option) any later version.
  13
  14 // In addition to the permissions in the GNU Library General Public
  15 // License, the Free Software Foundation gives you unlimited
  16 // permission to link the compiled version of this file into
  17 // combinations with other programs, and to distribute those
  18 // combinations without any restriction coming from the use of this
  19 // file.  (The Library Public License restrictions do apply in other
  20 // respects; for example, they cover modification of the file, and
  21 // distribution when not linked into a combined executable.)
  22
  23 // This program is distributed in the hope that it will be useful, but
  24 // WITHOUT ANY WARRANTY; without even the implied warranty of
  25 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  26 // Library General Public License for more details.
  27
  28 // You should have received a copy of the GNU Library General Public
  29 // License along with this program; if not, write to the Free Software
  30 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  31 // 02110-1301, USA.
  32
  33 // This is the external interface for elfcpp.
  34
  35 #ifndef ELFCPP_H
  36 #define ELFCPP_H
  37
  38 #include "elfcpp_swap.h"
  39
  40 #include <stdint.h>
  41
  42 namespace elfcpp
  43 {
  44
  45 // Basic ELF types.
  46
  47 // These types are always the same size.
  48
  49 typedef uint16_t Elf_Half;
  50 typedef uint32_t Elf_Word;
  51 typedef int32_t Elf_Sword;
  52 typedef uint64_t Elf_Xword;
  53 typedef int64_t Elf_Sxword;
  54
  55 // These types vary in size depending on the ELF file class.  The
  56 // template parameter should be 32 or 64.
  57
  58 template<int size>
  59 struct Elf_types;
  60
  61 template<>
  62 struct Elf_types<32>
  63 {
  64   typedef uint32_t Elf_Addr;
  65   typedef uint32_t Elf_Off;
  66   typedef uint32_t Elf_WXword;
  67   typedef int32_t Elf_Swxword;
  68 };
  69
  70 template<>
  71 struct Elf_types<64>
  72 {
  73   typedef uint64_t Elf_Addr;
  74   typedef uint64_t Elf_Off;
  75   typedef uint64_t Elf_WXword;
  76   typedef int64_t Elf_Swxword;
  77 };
  78
  79 // Offsets within the Ehdr e_ident field.
  80
  81 const int EI_MAG0 = 0;
  82 const int EI_MAG1 = 1;
  83 const int EI_MAG2 = 2;
  84 const int EI_MAG3 = 3;
  85 const int EI_CLASS = 4;
  86 const int EI_DATA = 5;
  87 const int EI_VERSION = 6;
  88 const int EI_OSABI = 7;
  89 const int EI_ABIVERSION = 8;
  90 const int EI_PAD = 9;
  91 const int EI_NIDENT = 16;
  92
  93 // The valid values found in Ehdr e_ident[EI_MAG0 through EI_MAG3].
  94
  95 const int ELFMAG0 = 0x7f;
  96 const int ELFMAG1 = 'E';
  97 const int ELFMAG2 = 'L';
  98 const int ELFMAG3 = 'F';
  99
 100 // The valid values found in Ehdr e_ident[EI_CLASS].
 101
 102 enum
 103 {
 104   ELFCLASSNONE = 0,
 105   ELFCLASS32 = 1,
 106   ELFCLASS64 = 2
 107 };
 108
 109 // The valid values found in Ehdr e_ident[EI_DATA].
 110
 111 enum
 112 {
 113   ELFDATANONE = 0,
 114   ELFDATA2LSB = 1,
 115   ELFDATA2MSB = 2
 116 };
 117
 118 // The valid values found in Ehdr e_ident[EI_VERSION] and e_version.
 119
 120 enum
 121 {
 122   EV_NONE = 0,
 123   EV_CURRENT = 1
 124 };
 125
 126 // The valid values found in Ehdr e_ident[EI_OSABI].
 127
 128 enum ELFOSABI
 129 {
 130   ELFOSABI_NONE = 0,
 131   ELFOSABI_HPUX = 1,
 132   ELFOSABI_NETBSD = 2,
 133   ELFOSABI_GNU = 3,
 134   // ELFOSABI_LINUX is an alias for ELFOSABI_GNU.
 135   ELFOSABI_LINUX = 3,
 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   EM_TILEGX = 191,
 273   // The Morph MT.
 274   EM_MT = 0x2530,
 275   // DLX.
 276   EM_DLX = 0x5aa5,
 277   // FRV.
 278   EM_FRV = 0x5441,
 279   // Infineon Technologies 16-bit microcontroller with C166-V2 core.
 280   EM_X16X = 0x4688,
 281   // Xstorym16
 282   EM_XSTORMY16 = 0xad45,
 283   // Renesas M32C
 284   EM_M32C = 0xfeb0,
 285   // Vitesse IQ2000
 286   EM_IQ2000 = 0xfeba,
 287   // NIOS
 288   EM_NIOS32 = 0xfebb
 289   // Old AVR objects used 0x1057 (EM_AVR is correct).
 290   // Old MSP430 objects used 0x1059 (EM_MSP430 is correct).
 291   // Old FR30 objects used 0x3330 (EM_FR30 is correct).
 292   // Old OpenRISC objects used 0x3426 and 0x8472 (EM_OPENRISC is correct).
 293   // Old D10V objects used 0x7650 (EM_D10V is correct).
 294   // Old D30V objects used 0x7676 (EM_D30V is correct).
 295   // Old IP2X objects used 0x8217 (EM_IP2K is correct).
 296   // Old PowerPC objects used 0x9025 (EM_PPC is correct).
 297   // Old Alpha objects used 0x9026 (EM_ALPHA is correct).
 298   // Old M32R objects used 0x9041 (EM_M32R is correct).
 299   // Old V850 objects used 0x9080 (EM_V850 is correct).
 300   // Old S/390 objects used 0xa390 (EM_S390 is correct).
 301   // Old Xtensa objects used 0xabc7 (EM_XTENSA is correct).
 302   // Old MN10300 objects used 0xbeef (EM_MN10300 is correct).
 303   // Old MN10200 objects used 0xdead (EM_MN10200 is correct).
 304 };
 305
 306 // A special value found in the Ehdr e_phnum field.
 307
 308 enum
 309 {
 310   // Number of program segments stored in sh_info field of first
 311   // section headre.
 312   PN_XNUM = 0xffff
 313 };
 314
 315 // Special section indices.
 316
 317 enum
 318 {
 319   SHN_UNDEF = 0,
 320   SHN_LORESERVE = 0xff00,
 321   SHN_LOPROC = 0xff00,
 322   SHN_HIPROC = 0xff1f,
 323   SHN_LOOS = 0xff20,
 324   SHN_HIOS = 0xff3f,
 325   SHN_ABS = 0xfff1,
 326   SHN_COMMON = 0xfff2,
 327   SHN_XINDEX = 0xffff,
 328   SHN_HIRESERVE = 0xffff,
 329
 330   // Provide for initial and final section ordering in conjunction
 331   // with the SHF_LINK_ORDER and SHF_ORDERED section flags.
 332   SHN_BEFORE = 0xff00,
 333   SHN_AFTER = 0xff01,
 334
 335   // x86_64 specific large common symbol.
 336   SHN_X86_64_LCOMMON = 0xff02
 337 };
 338
 339 // The valid values found in the Shdr sh_type field.
 340
 341 enum SHT
 342 {
 343   SHT_NULL = 0,
 344   SHT_PROGBITS = 1,
 345   SHT_SYMTAB = 2,
 346   SHT_STRTAB = 3,
 347   SHT_RELA = 4,
 348   SHT_HASH = 5,
 349   SHT_DYNAMIC = 6,
 350   SHT_NOTE = 7,
 351   SHT_NOBITS = 8,
 352   SHT_REL = 9,
 353   SHT_SHLIB = 10,
 354   SHT_DYNSYM = 11,
 355   SHT_INIT_ARRAY = 14,
 356   SHT_FINI_ARRAY = 15,
 357   SHT_PREINIT_ARRAY = 16,
 358   SHT_GROUP = 17,
 359   SHT_SYMTAB_SHNDX = 18,
 360   SHT_LOOS = 0x60000000,
 361   SHT_HIOS = 0x6fffffff,
 362   SHT_LOPROC = 0x70000000,
 363   SHT_HIPROC = 0x7fffffff,
 364   SHT_LOUSER = 0x80000000,
 365   SHT_HIUSER = 0xffffffff,
 366   // The remaining values are not in the standard.
 367   // Incremental build data.
 368   SHT_GNU_INCREMENTAL_INPUTS = 0x6fff4700,
 369   SHT_GNU_INCREMENTAL_SYMTAB = 0x6fff4701,
 370   SHT_GNU_INCREMENTAL_RELOCS = 0x6fff4702,
 371   SHT_GNU_INCREMENTAL_GOT_PLT = 0x6fff4703,
 372   // Object attributes.
 373   SHT_GNU_ATTRIBUTES = 0x6ffffff5,
 374   // GNU style dynamic hash table.
 375   SHT_GNU_HASH = 0x6ffffff6,
 376   // List of prelink dependencies.
 377   SHT_GNU_LIBLIST = 0x6ffffff7,
 378   // Versions defined by file.
 379   SHT_SUNW_verdef = 0x6ffffffd,
 380   SHT_GNU_verdef = 0x6ffffffd,
 381   // Versions needed by file.
 382   SHT_SUNW_verneed = 0x6ffffffe,
 383   SHT_GNU_verneed = 0x6ffffffe,
 384   // Symbol versions,
 385   SHT_SUNW_versym = 0x6fffffff,
 386   SHT_GNU_versym = 0x6fffffff,
 387
 388   SHT_SPARC_GOTDATA = 0x70000000,
 389
 390   // ARM-specific section types.
 391   // Exception Index table.
 392   SHT_ARM_EXIDX = 0x70000001,
 393   // BPABI DLL dynamic linking pre-emption map.
 394   SHT_ARM_PREEMPTMAP = 0x70000002,
 395   // Object file compatibility attributes.
 396   SHT_ARM_ATTRIBUTES = 0x70000003,
 397   // Support for debugging overlaid programs.
 398   SHT_ARM_DEBUGOVERLAY = 0x70000004,
 399   SHT_ARM_OVERLAYSECTION = 0x70000005,
 400
 401   // x86_64 unwind information.
 402   SHT_X86_64_UNWIND = 0x70000001,
 403
 404   //MIPS-specific section types.
 405   // Register info section
 406   SHT_MIPS_REGINFO = 0x70000006,
 407
 408   // Link editor is to sort the entries in this section based on the
 409   // address specified in the associated symbol table entry.
 410   SHT_ORDERED = 0x7fffffff
 411 };
 412
 413 // The valid bit flags found in the Shdr sh_flags field.
 414
 415 enum SHF
 416 {
 417   SHF_WRITE = 0x1,
 418   SHF_ALLOC = 0x2,
 419   SHF_EXECINSTR = 0x4,
 420   SHF_MERGE = 0x10,
 421   SHF_STRINGS = 0x20,
 422   SHF_INFO_LINK = 0x40,
 423   SHF_LINK_ORDER = 0x80,
 424   SHF_OS_NONCONFORMING = 0x100,
 425   SHF_GROUP = 0x200,
 426   SHF_TLS = 0x400,
 427   SHF_MASKOS = 0x0ff00000,
 428   SHF_MASKPROC = 0xf0000000,
 429
 430   // Indicates this section requires ordering in relation to
 431   // other sections of the same type.  Ordered sections are
 432   // combined within the section pointed to by the sh_link entry.
 433   // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
 434   // sorted section is to precede or follow, respectively, all
 435   // other sections in the set being ordered.
 436   SHF_ORDERED = 0x40000000,
 437   // This section is excluded from input to the link-edit of an
 438   // executable or shared object.  This flag is ignored if SHF_ALLOC
 439   // is also set, or if relocations exist against the section.
 440   SHF_EXCLUDE = 0x80000000,
 441
 442   // Section with data that is GP relative addressable.
 443   SHF_MIPS_GPREL = 0x10000000,
 444
 445   // x86_64 specific large section.
 446   SHF_X86_64_LARGE = 0x10000000
 447 };
 448
 449 // Bit flags which appear in the first 32-bit word of the section data
 450 // of a SHT_GROUP section.
 451
 452 enum
 453 {
 454   GRP_COMDAT = 0x1,
 455   GRP_MASKOS = 0x0ff00000,
 456   GRP_MASKPROC = 0xf0000000
 457 };
 458
 459 // The valid values found in the Phdr p_type field.
 460
 461 enum PT
 462 {
 463   PT_NULL = 0,
 464   PT_LOAD = 1,
 465   PT_DYNAMIC = 2,
 466   PT_INTERP = 3,
 467   PT_NOTE = 4,
 468   PT_SHLIB = 5,
 469   PT_PHDR = 6,
 470   PT_TLS = 7,
 471   PT_LOOS = 0x60000000,
 472   PT_HIOS = 0x6fffffff,
 473   PT_LOPROC = 0x70000000,
 474   PT_HIPROC = 0x7fffffff,
 475   // The remaining values are not in the standard.
 476   // Frame unwind information.
 477   PT_GNU_EH_FRAME = 0x6474e550,
 478   PT_SUNW_EH_FRAME = 0x6474e550,
 479   // Stack flags.
 480   PT_GNU_STACK = 0x6474e551,
 481   // Read only after relocation.
 482   PT_GNU_RELRO = 0x6474e552,
 483   // Platform architecture compatibility information
 484   PT_ARM_ARCHEXT = 0x70000000,
 485   // Exception unwind tables
 486   PT_ARM_EXIDX = 0x70000001,
 487   // Register usage information.  Identifies one .reginfo section.
 488   PT_MIPS_REGINFO =0x70000000,
 489   // Runtime procedure table.
 490   PT_MIPS_RTPROC = 0x70000001,
 491   // .MIPS.options section.
 492   PT_MIPS_OPTIONS = 0x70000002
 493 };
 494
 495 // The valid bit flags found in the Phdr p_flags field.
 496
 497 enum PF
 498 {
 499   PF_X = 0x1,
 500   PF_W = 0x2,
 501   PF_R = 0x4,
 502   PF_MASKOS = 0x0ff00000,
 503   PF_MASKPROC = 0xf0000000
 504 };
 505
 506 // Symbol binding from Sym st_info field.
 507
 508 enum STB
 509 {
 510   STB_LOCAL = 0,
 511   STB_GLOBAL = 1,
 512   STB_WEAK = 2,
 513   STB_LOOS = 10,
 514   STB_GNU_UNIQUE = 10,
 515   STB_HIOS = 12,
 516   STB_LOPROC = 13,
 517   STB_HIPROC = 15
 518 };
 519
 520 // Symbol types from Sym st_info field.
 521
 522 enum STT
 523 {
 524   STT_NOTYPE = 0,
 525   STT_OBJECT = 1,
 526   STT_FUNC = 2,
 527   STT_SECTION = 3,
 528   STT_FILE = 4,
 529   STT_COMMON = 5,
 530   STT_TLS = 6,
 531
 532   // GNU extension: symbol value points to a function which is called
 533   // at runtime to determine the final value of the symbol.
 534   STT_GNU_IFUNC = 10,
 535
 536   STT_LOOS = 10,
 537   STT_HIOS = 12,
 538   STT_LOPROC = 13,
 539   STT_HIPROC = 15,
 540
 541   // The section type that must be used for register symbols on
 542   // Sparc.  These symbols initialize a global register.
 543   STT_SPARC_REGISTER = 13,
 544
 545   // ARM: a THUMB function.  This is not defined in ARM ELF Specification but
 546   // used by the GNU tool-chain.
 547   STT_ARM_TFUNC = 13
 548 };
 549
 550 inline STB
 551 elf_st_bind(unsigned char info)
 552 {
 553   return static_cast<STB>(info >> 4);
 554 }
 555
 556 inline STT
 557 elf_st_type(unsigned char info)
 558 {
 559   return static_cast<STT>(info & 0xf);
 560 }
 561
 562 inline unsigned char
 563 elf_st_info(STB bind, STT type)
 564 {
 565   return ((static_cast<unsigned char>(bind) << 4)
 566           + (static_cast<unsigned char>(type) & 0xf));
 567 }
 568
 569 // Symbol visibility from Sym st_other field.
 570
 571 enum STV
 572 {
 573   STV_DEFAULT = 0,
 574   STV_INTERNAL = 1,
 575   STV_HIDDEN = 2,
 576   STV_PROTECTED = 3
 577 };
 578
 579 inline STV
 580 elf_st_visibility(unsigned char other)
 581 {
 582   return static_cast<STV>(other & 0x3);
 583 }
 584
 585 inline unsigned char
 586 elf_st_nonvis(unsigned char other)
 587 {
 588   return static_cast<STV>(other >> 2);
 589 }
 590
 591 inline unsigned char
 592 elf_st_other(STV vis, unsigned char nonvis)
 593 {
 594   return ((nonvis << 2)
 595           + (static_cast<unsigned char>(vis) & 3));
 596 }
 597
 598 // Reloc information from Rel/Rela r_info field.
 599
 600 template<int size>
 601 unsigned int
 602 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 603
 604 template<>
 605 inline unsigned int
 606 elf_r_sym<32>(Elf_Word v)
 607 {
 608   return v >> 8;
 609 }
 610
 611 template<>
 612 inline unsigned int
 613 elf_r_sym<64>(Elf_Xword v)
 614 {
 615   return v >> 32;
 616 }
 617
 618 template<int size>
 619 unsigned int
 620 elf_r_type(typename Elf_types<size>::Elf_WXword);
 621
 622 template<>
 623 inline unsigned int
 624 elf_r_type<32>(Elf_Word v)
 625 {
 626   return v & 0xff;
 627 }
 628
 629 template<>
 630 inline unsigned int
 631 elf_r_type<64>(Elf_Xword v)
 632 {
 633   return v & 0xffffffff;
 634 }
 635
 636 template<int size>
 637 typename Elf_types<size>::Elf_WXword
 638 elf_r_info(unsigned int s, unsigned int t);
 639
 640 template<>
 641 inline Elf_Word
 642 elf_r_info<32>(unsigned int s, unsigned int t)
 643 {
 644   return (s << 8) + (t & 0xff);
 645 }
 646
 647 template<>
 648 inline Elf_Xword
 649 elf_r_info<64>(unsigned int s, unsigned int t)
 650 {
 651   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 652 }
 653
 654 // Dynamic tags found in the PT_DYNAMIC segment.
 655
 656 enum DT
 657 {
 658   DT_NULL = 0,
 659   DT_NEEDED = 1,
 660   DT_PLTRELSZ = 2,
 661   DT_PLTGOT = 3,
 662   DT_HASH = 4,
 663   DT_STRTAB = 5,
 664   DT_SYMTAB = 6,
 665   DT_RELA = 7,
 666   DT_RELASZ = 8,
 667   DT_RELAENT = 9,
 668   DT_STRSZ = 10,
 669   DT_SYMENT = 11,
 670   DT_INIT = 12,
 671   DT_FINI = 13,
 672   DT_SONAME = 14,
 673   DT_RPATH = 15,
 674   DT_SYMBOLIC = 16,
 675   DT_REL = 17,
 676   DT_RELSZ = 18,
 677   DT_RELENT = 19,
 678   DT_PLTREL = 20,
 679   DT_DEBUG = 21,
 680   DT_TEXTREL = 22,
 681   DT_JMPREL = 23,
 682   DT_BIND_NOW = 24,
 683   DT_INIT_ARRAY = 25,
 684   DT_FINI_ARRAY = 26,
 685   DT_INIT_ARRAYSZ = 27,
 686   DT_FINI_ARRAYSZ = 28,
 687   DT_RUNPATH = 29,
 688   DT_FLAGS = 30,
 689
 690   // This is used to mark a range of dynamic tags.  It is not really
 691   // a tag value.
 692   DT_ENCODING = 32,
 693
 694   DT_PREINIT_ARRAY = 32,
 695   DT_PREINIT_ARRAYSZ = 33,
 696   DT_LOOS = 0x6000000d,
 697   DT_HIOS = 0x6ffff000,
 698   DT_LOPROC = 0x70000000,
 699   DT_HIPROC = 0x7fffffff,
 700
 701   // The remaining values are extensions used by GNU or Solaris.
 702   DT_VALRNGLO = 0x6ffffd00,
 703   DT_GNU_PRELINKED = 0x6ffffdf5,
 704   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 705   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 706   DT_CHECKSUM = 0x6ffffdf8,
 707   DT_PLTPADSZ = 0x6ffffdf9,
 708   DT_MOVEENT = 0x6ffffdfa,
 709   DT_MOVESZ = 0x6ffffdfb,
 710   DT_FEATURE = 0x6ffffdfc,
 711   DT_POSFLAG_1 = 0x6ffffdfd,
 712   DT_SYMINSZ = 0x6ffffdfe,
 713   DT_SYMINENT = 0x6ffffdff,
 714   DT_VALRNGHI = 0x6ffffdff,
 715
 716   DT_ADDRRNGLO = 0x6ffffe00,
 717   DT_GNU_HASH = 0x6ffffef5,
 718   DT_TLSDESC_PLT = 0x6ffffef6,
 719   DT_TLSDESC_GOT = 0x6ffffef7,
 720   DT_GNU_CONFLICT = 0x6ffffef8,
 721   DT_GNU_LIBLIST = 0x6ffffef9,
 722   DT_CONFIG = 0x6ffffefa,
 723   DT_DEPAUDIT = 0x6ffffefb,
 724   DT_AUDIT = 0x6ffffefc,
 725   DT_PLTPAD = 0x6ffffefd,
 726   DT_MOVETAB = 0x6ffffefe,
 727   DT_SYMINFO = 0x6ffffeff,
 728   DT_ADDRRNGHI = 0x6ffffeff,
 729
 730   DT_RELACOUNT = 0x6ffffff9,
 731   DT_RELCOUNT = 0x6ffffffa,
 732   DT_FLAGS_1 = 0x6ffffffb,
 733   DT_VERDEF = 0x6ffffffc,
 734   DT_VERDEFNUM = 0x6ffffffd,
 735   DT_VERNEED = 0x6ffffffe,
 736   DT_VERNEEDNUM = 0x6fffffff,
 737
 738   DT_VERSYM = 0x6ffffff0,
 739
 740   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 741   DT_PPC_GOT = 0x70000000,
 742
 743   // Specify the start of the .glink section.
 744   DT_PPC64_GLINK = 0x70000000,
 745
 746   // Specify the start and size of the .opd section.
 747   DT_PPC64_OPD = 0x70000001,
 748   DT_PPC64_OPDSZ = 0x70000002,
 749
 750   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 751   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 752   // symbol in the symbol table.
 753   DT_SPARC_REGISTER = 0x70000001,
 754
 755   // MIPS specific dynamic array tags.
 756   // 32 bit version number for runtime linker interface.
 757   DT_MIPS_RLD_VERSION = 0x70000001,
 758   // Time stamp.
 759   DT_MIPS_TIME_STAMP = 0x70000002,
 760   // Checksum of external strings and common sizes.
 761   DT_MIPS_ICHECKSUM = 0x70000003,
 762   // Index of version string in string table.
 763   DT_MIPS_IVERSION = 0x70000004,
 764   // 32 bits of flags.
 765   DT_MIPS_FLAGS = 0x70000005,
 766   // Base address of the segment.
 767   DT_MIPS_BASE_ADDRESS = 0x70000006,
 768   // ???
 769   DT_MIPS_MSYM = 0x70000007,
 770   // Address of .conflict section.
 771   DT_MIPS_CONFLICT = 0x70000008,
 772   // Address of .liblist section.
 773   DT_MIPS_LIBLIST = 0x70000009,
 774   // Number of local global offset table entries.
 775   DT_MIPS_LOCAL_GOTNO = 0x7000000a,
 776   // Number of entries in the .conflict section.
 777   DT_MIPS_CONFLICTNO = 0x7000000b,
 778   // Number of entries in the .liblist section.
 779   DT_MIPS_LIBLISTNO = 0x70000010,
 780   // Number of entries in the .dynsym section.
 781   DT_MIPS_SYMTABNO = 0x70000011,
 782   // Index of first external dynamic symbol not referenced locally.
 783   DT_MIPS_UNREFEXTNO = 0x70000012,
 784   // Index of first dynamic symbol in global offset table.
 785   DT_MIPS_GOTSYM = 0x70000013,
 786   // Number of page table entries in global offset table.
 787   DT_MIPS_HIPAGENO = 0x70000014,
 788   // Address of run time loader map, used for debugging.
 789   DT_MIPS_RLD_MAP = 0x70000016,
 790   // Delta C++ class definition.
 791   DT_MIPS_DELTA_CLASS = 0x70000017,
 792   // Number of entries in DT_MIPS_DELTA_CLASS.
 793   DT_MIPS_DELTA_CLASS_NO = 0x70000018,
 794   // Delta C++ class instances.
 795   DT_MIPS_DELTA_INSTANCE = 0x70000019,
 796   // Number of entries in DT_MIPS_DELTA_INSTANCE.
 797   DT_MIPS_DELTA_INSTANCE_NO = 0x7000001a,
 798   // Delta relocations.
 799   DT_MIPS_DELTA_RELOC = 0x7000001b,
 800   // Number of entries in DT_MIPS_DELTA_RELOC.
 801   DT_MIPS_DELTA_RELOC_NO = 0x7000001c,
 802   // Delta symbols that Delta relocations refer to.
 803   DT_MIPS_DELTA_SYM = 0x7000001d,
 804   // Number of entries in DT_MIPS_DELTA_SYM.
 805   DT_MIPS_DELTA_SYM_NO = 0x7000001e,
 806   // Delta symbols that hold class declarations.
 807   DT_MIPS_DELTA_CLASSSYM = 0x70000020,
 808   // Number of entries in DT_MIPS_DELTA_CLASSSYM.
 809   DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021,
 810   // Flags indicating information about C++ flavor.
 811   DT_MIPS_CXX_FLAGS = 0x70000022,
 812   // Pixie information (???).
 813   DT_MIPS_PIXIE_INIT = 0x70000023,
 814   // Address of .MIPS.symlib
 815   DT_MIPS_SYMBOL_LIB = 0x70000024,
 816   // The GOT index of the first PTE for a segment
 817   DT_MIPS_LOCALPAGE_GOTIDX = 0x70000025,
 818   // The GOT index of the first PTE for a local symbol
 819   DT_MIPS_LOCAL_GOTIDX = 0x70000026,
 820   // The GOT index of the first PTE for a hidden symbol
 821   DT_MIPS_HIDDEN_GOTIDX = 0x70000027,
 822   // The GOT index of the first PTE for a protected symbol
 823   DT_MIPS_PROTECTED_GOTIDX = 0x70000028,
 824   // Address of `.MIPS.options'.
 825   DT_MIPS_OPTIONS = 0x70000029,
 826   // Address of `.interface'.
 827   DT_MIPS_INTERFACE = 0x7000002a,
 828   // ???
 829   DT_MIPS_DYNSTR_ALIGN = 0x7000002b,
 830   // Size of the .interface section.
 831   DT_MIPS_INTERFACE_SIZE = 0x7000002c,
 832   // Size of rld_text_resolve function stored in the GOT.
 833   DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002d,
 834   // Default suffix of DSO to be added by rld on dlopen() calls.
 835   DT_MIPS_PERF_SUFFIX = 0x7000002e,
 836   // Size of compact relocation section (O32).
 837   DT_MIPS_COMPACT_SIZE = 0x7000002f,
 838   // GP value for auxiliary GOTs.
 839   DT_MIPS_GP_VALUE = 0x70000030,
 840   // Address of auxiliary .dynamic.
 841   DT_MIPS_AUX_DYNAMIC = 0x70000031,
 842   // Address of the base of the PLTGOT.
 843   DT_MIPS_PLTGOT = 0x70000032,
 844   // Points to the base of a writable PLT.
 845   DT_MIPS_RWPLT = 0x70000034,
 846
 847   DT_AUXILIARY = 0x7ffffffd,
 848   DT_USED = 0x7ffffffe,
 849   DT_FILTER = 0x7fffffff
 850 };
 851
 852 // Flags found in the DT_FLAGS dynamic element.
 853
 854 enum DF
 855 {
 856   DF_ORIGIN = 0x1,
 857   DF_SYMBOLIC = 0x2,
 858   DF_TEXTREL = 0x4,
 859   DF_BIND_NOW = 0x8,
 860   DF_STATIC_TLS = 0x10
 861 };
 862
 863 // Flags found in the DT_FLAGS_1 dynamic element.
 864
 865 enum DF_1
 866 {
 867   DF_1_NOW = 0x1,
 868   DF_1_GLOBAL = 0x2,
 869   DF_1_GROUP = 0x4,
 870   DF_1_NODELETE = 0x8,
 871   DF_1_LOADFLTR = 0x10,
 872   DF_1_INITFIRST = 0x20,
 873   DF_1_NOOPEN = 0x40,
 874   DF_1_ORIGIN = 0x80,
 875   DF_1_DIRECT = 0x100,
 876   DF_1_TRANS = 0x200,
 877   DF_1_INTERPOSE = 0x400,
 878   DF_1_NODEFLIB = 0x800,
 879   DF_1_NODUMP = 0x1000,
 880   DF_1_CONLFAT = 0x2000
 881 };
 882
 883 // Version numbers which appear in the vd_version field of a Verdef
 884 // structure.
 885
 886 const int VER_DEF_NONE = 0;
 887 const int VER_DEF_CURRENT = 1;
 888
 889 // Version numbers which appear in the vn_version field of a Verneed
 890 // structure.
 891
 892 const int VER_NEED_NONE = 0;
 893 const int VER_NEED_CURRENT = 1;
 894
 895 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 896 // Vernaux.
 897
 898 const int VER_FLG_BASE = 0x1;
 899 const int VER_FLG_WEAK = 0x2;
 900 const int VER_FLG_INFO = 0x4;
 901
 902 // Special constants found in the SHT_GNU_versym entries.
 903
 904 const int VER_NDX_LOCAL = 0;
 905 const int VER_NDX_GLOBAL = 1;
 906
 907 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 908 // the symbol is hidden and can only be seen when referenced using an
 909 // explicit version number.  This is a GNU extension.
 910
 911 const int VERSYM_HIDDEN = 0x8000;
 912
 913 // This is the mask for the rest of the data in a word read from a
 914 // SHT_GNU_versym section.
 915
 916 const int VERSYM_VERSION = 0x7fff;
 917
 918 // Note descriptor type codes for notes in a non-core file with an
 919 // empty name.
 920
 921 enum
 922 {
 923   // A version string.
 924   NT_VERSION = 1,
 925   // An architecture string.
 926   NT_ARCH = 2
 927 };
 928
 929 // Note descriptor type codes for notes in a non-core file with the
 930 // name "GNU".
 931
 932 enum
 933 {
 934   // The minimum ABI level.  This is used by the dynamic linker to
 935   // describe the minimal kernel version on which a shared library may
 936   // be used.  Th value should be four words.  Word 0 is an OS
 937   // descriptor (see below).  Word 1 is the major version of the ABI.
 938   // Word 2 is the minor version.  Word 3 is the subminor version.
 939   NT_GNU_ABI_TAG = 1,
 940   // Hardware capabilities information.  Word 0 is the number of
 941   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 942   // the descriptor is a series of entries, where each entry is a
 943   // single byte followed by a nul terminated string.  The byte gives
 944   // the bit number to test if enabled in the bitmask.
 945   NT_GNU_HWCAP = 2,
 946   // The build ID as set by the linker's --build-id option.  The
 947   // format of the descriptor depends on the build ID style.
 948   NT_GNU_BUILD_ID = 3,
 949   // The version of gold used to link.  Th descriptor is just a
 950   // string.
 951   NT_GNU_GOLD_VERSION = 4
 952 };
 953
 954 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 955
 956 enum
 957 {
 958   ELF_NOTE_OS_LINUX = 0,
 959   ELF_NOTE_OS_GNU = 1,
 960   ELF_NOTE_OS_SOLARIS2 = 2,
 961   ELF_NOTE_OS_FREEBSD = 3,
 962   ELF_NOTE_OS_NETBSD = 4,
 963   ELF_NOTE_OS_SYLLABLE = 5
 964 };
 965
 966 } // End namespace elfcpp.
 967
 968 // Include internal details after defining the types.
 969 #include "elfcpp_internal.h"
 970
 971 namespace elfcpp
 972 {
 973
 974 // The offset of the ELF file header in the ELF file.
 975
 976 const int file_header_offset = 0;
 977
 978 // ELF structure sizes.
 979
 980 template<int size>
 981 struct Elf_sizes
 982 {
 983   // Size of ELF file header.
 984   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
 985   // Size of ELF segment header.
 986   static const int phdr_size = sizeof(internal::Phdr_data<size>);
 987   // Size of ELF section header.
 988   static const int shdr_size = sizeof(internal::Shdr_data<size>);
 989   // Size of ELF symbol table entry.
 990   static const int sym_size = sizeof(internal::Sym_data<size>);
 991   // Sizes of ELF reloc entries.
 992   static const int rel_size = sizeof(internal::Rel_data<size>);
 993   static const int rela_size = sizeof(internal::Rela_data<size>);
 994   // Size of ELF dynamic entry.
 995   static const int dyn_size = sizeof(internal::Dyn_data<size>);
 996   // Size of ELF version structures.
 997   static const int verdef_size = sizeof(internal::Verdef_data);
 998   static const int verdaux_size = sizeof(internal::Verdaux_data);
 999   static const int verneed_size = sizeof(internal::Verneed_data);
1000   static const int vernaux_size = sizeof(internal::Vernaux_data);
1001 };
1002
1003 // Accessor class for the ELF file header.
1004
1005 template<int size, bool big_endian>
1006 class Ehdr
1007 {
1008  public:
1009   Ehdr(const unsigned char* p)
1010     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
1011   { }
1012
1013   template<typename File>
1014   Ehdr(File* file, typename File::Location loc)
1015     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
1016            file->view(loc.file_offset, loc.data_size).data()))
1017   { }
1018
1019   const unsigned char*
1020   get_e_ident() const
1021   { return this->p_->e_ident; }
1022
1023   Elf_Half
1024   get_e_type() const
1025   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
1026
1027   Elf_Half
1028   get_e_machine() const
1029   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
1030
1031   Elf_Word
1032   get_e_version() const
1033   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
1034
1035   typename Elf_types<size>::Elf_Addr
1036   get_e_entry() const
1037   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
1038
1039   typename Elf_types<size>::Elf_Off
1040   get_e_phoff() const
1041   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
1042
1043   typename Elf_types<size>::Elf_Off
1044   get_e_shoff() const
1045   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
1046
1047   Elf_Word
1048   get_e_flags() const
1049   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
1050
1051   Elf_Half
1052   get_e_ehsize() const
1053   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
1054
1055   Elf_Half
1056   get_e_phentsize() const
1057   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
1058
1059   Elf_Half
1060   get_e_phnum() const
1061   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
1062
1063   Elf_Half
1064   get_e_shentsize() const
1065   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
1066
1067   Elf_Half
1068   get_e_shnum() const
1069   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
1070
1071   Elf_Half
1072   get_e_shstrndx() const
1073   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
1074
1075  private:
1076   const internal::Ehdr_data<size>* p_;
1077 };
1078
1079 // Write class for the ELF file header.
1080
1081 template<int size, bool big_endian>
1082 class Ehdr_write
1083 {
1084  public:
1085   Ehdr_write(unsigned char* p)
1086     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
1087   { }
1088
1089   void
1090   put_e_ident(const unsigned char v[EI_NIDENT]) const
1091   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
1092
1093   void
1094   put_e_type(Elf_Half v)
1095   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
1096
1097   void
1098   put_e_machine(Elf_Half v)
1099   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
1100
1101   void
1102   put_e_version(Elf_Word v)
1103   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
1104
1105   void
1106   put_e_entry(typename Elf_types<size>::Elf_Addr v)
1107   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
1108
1109   void
1110   put_e_phoff(typename Elf_types<size>::Elf_Off v)
1111   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
1112
1113   void
1114   put_e_shoff(typename Elf_types<size>::Elf_Off v)
1115   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
1116
1117   void
1118   put_e_flags(Elf_Word v)
1119   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
1120
1121   void
1122   put_e_ehsize(Elf_Half v)
1123   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
1124
1125   void
1126   put_e_phentsize(Elf_Half v)
1127   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
1128
1129   void
1130   put_e_phnum(Elf_Half v)
1131   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
1132
1133   void
1134   put_e_shentsize(Elf_Half v)
1135   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
1136
1137   void
1138   put_e_shnum(Elf_Half v)
1139   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
1140
1141   void
1142   put_e_shstrndx(Elf_Half v)
1143   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
1144
1145  private:
1146   internal::Ehdr_data<size>* p_;
1147 };
1148
1149 // Accessor class for an ELF section header.
1150
1151 template<int size, bool big_endian>
1152 class Shdr
1153 {
1154  public:
1155   Shdr(const unsigned char* p)
1156     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
1157   { }
1158
1159   template<typename File>
1160   Shdr(File* file, typename File::Location loc)
1161     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1162            file->view(loc.file_offset, loc.data_size).data()))
1163   { }
1164
1165   Elf_Word
1166   get_sh_name() const
1167   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1168
1169   Elf_Word
1170   get_sh_type() const
1171   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1172
1173   typename Elf_types<size>::Elf_WXword
1174   get_sh_flags() const
1175   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1176
1177   typename Elf_types<size>::Elf_Addr
1178   get_sh_addr() const
1179   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1180
1181   typename Elf_types<size>::Elf_Off
1182   get_sh_offset() const
1183   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1184
1185   typename Elf_types<size>::Elf_WXword
1186   get_sh_size() const
1187   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1188
1189   Elf_Word
1190   get_sh_link() const
1191   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1192
1193   Elf_Word
1194   get_sh_info() const
1195   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1196
1197   typename Elf_types<size>::Elf_WXword
1198   get_sh_addralign() const
1199   { return
1200       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1201
1202   typename Elf_types<size>::Elf_WXword
1203   get_sh_entsize() const
1204   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1205
1206  private:
1207   const internal::Shdr_data<size>* p_;
1208 };
1209
1210 // Write class for an ELF section header.
1211
1212 template<int size, bool big_endian>
1213 class Shdr_write
1214 {
1215  public:
1216   Shdr_write(unsigned char* p)
1217     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1218   { }
1219
1220   void
1221   put_sh_name(Elf_Word v)
1222   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1223
1224   void
1225   put_sh_type(Elf_Word v)
1226   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1227
1228   void
1229   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1230   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1231
1232   void
1233   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1234   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1235
1236   void
1237   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1238   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1239
1240   void
1241   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1242   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1243
1244   void
1245   put_sh_link(Elf_Word v)
1246   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1247
1248   void
1249   put_sh_info(Elf_Word v)
1250   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1251
1252   void
1253   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1254   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1255
1256   void
1257   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1258   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1259
1260  private:
1261   internal::Shdr_data<size>* p_;
1262 };
1263
1264 // Accessor class for an ELF segment header.
1265
1266 template<int size, bool big_endian>
1267 class Phdr
1268 {
1269  public:
1270   Phdr(const unsigned char* p)
1271     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1272   { }
1273
1274   template<typename File>
1275   Phdr(File* file, typename File::Location loc)
1276     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1277            file->view(loc.file_offset, loc.data_size).data()))
1278   { }
1279
1280   Elf_Word
1281   get_p_type() const
1282   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1283
1284   typename Elf_types<size>::Elf_Off
1285   get_p_offset() const
1286   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1287
1288   typename Elf_types<size>::Elf_Addr
1289   get_p_vaddr() const
1290   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1291
1292   typename Elf_types<size>::Elf_Addr
1293   get_p_paddr() const
1294   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1295
1296   typename Elf_types<size>::Elf_WXword
1297   get_p_filesz() const
1298   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1299
1300   typename Elf_types<size>::Elf_WXword
1301   get_p_memsz() const
1302   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1303
1304   Elf_Word
1305   get_p_flags() const
1306   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1307
1308   typename Elf_types<size>::Elf_WXword
1309   get_p_align() const
1310   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1311
1312  private:
1313   const internal::Phdr_data<size>* p_;
1314 };
1315
1316 // Write class for an ELF segment header.
1317
1318 template<int size, bool big_endian>
1319 class Phdr_write
1320 {
1321  public:
1322   Phdr_write(unsigned char* p)
1323     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1324   { }
1325
1326   void
1327   put_p_type(Elf_Word v)
1328   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1329
1330   void
1331   put_p_offset(typename Elf_types<size>::Elf_Off v)
1332   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1333
1334   void
1335   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1336   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1337
1338   void
1339   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1340   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1341
1342   void
1343   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1344   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1345
1346   void
1347   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1348   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1349
1350   void
1351   put_p_flags(Elf_Word v)
1352   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1353
1354   void
1355   put_p_align(typename Elf_types<size>::Elf_WXword v)
1356   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1357
1358  private:
1359   internal::Phdr_data<size>* p_;
1360 };
1361
1362 // Accessor class for an ELF symbol table entry.
1363
1364 template<int size, bool big_endian>
1365 class Sym
1366 {
1367  public:
1368   Sym(const unsigned char* p)
1369     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1370   { }
1371
1372   template<typename File>
1373   Sym(File* file, typename File::Location loc)
1374     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1375            file->view(loc.file_offset, loc.data_size).data()))
1376   { }
1377
1378   Elf_Word
1379   get_st_name() const
1380   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1381
1382   typename Elf_types<size>::Elf_Addr
1383   get_st_value() const
1384   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1385
1386   typename Elf_types<size>::Elf_WXword
1387   get_st_size() const
1388   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1389
1390   unsigned char
1391   get_st_info() const
1392   { return this->p_->st_info; }
1393
1394   STB
1395   get_st_bind() const
1396   { return elf_st_bind(this->get_st_info()); }
1397
1398   STT
1399   get_st_type() const
1400   { return elf_st_type(this->get_st_info()); }
1401
1402   unsigned char
1403   get_st_other() const
1404   { return this->p_->st_other; }
1405
1406   STV
1407   get_st_visibility() const
1408   { return elf_st_visibility(this->get_st_other()); }
1409
1410   unsigned char
1411   get_st_nonvis() const
1412   { return elf_st_nonvis(this->get_st_other()); }
1413
1414   Elf_Half
1415   get_st_shndx() const
1416   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1417
1418  private:
1419   const internal::Sym_data<size>* p_;
1420 };
1421
1422 // Writer class for an ELF symbol table entry.
1423
1424 template<int size, bool big_endian>
1425 class Sym_write
1426 {
1427  public:
1428   Sym_write(unsigned char* p)
1429     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1430   { }
1431
1432   void
1433   put_st_name(Elf_Word v)
1434   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1435
1436   void
1437   put_st_value(typename Elf_types<size>::Elf_Addr v)
1438   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1439
1440   void
1441   put_st_size(typename Elf_types<size>::Elf_WXword v)
1442   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1443
1444   void
1445   put_st_info(unsigned char v)
1446   { this->p_->st_info = v; }
1447
1448   void
1449   put_st_info(STB bind, STT type)
1450   { this->p_->st_info = elf_st_info(bind, type); }
1451
1452   void
1453   put_st_other(unsigned char v)
1454   { this->p_->st_other = v; }
1455
1456   void
1457   put_st_other(STV vis, unsigned char nonvis)
1458   { this->p_->st_other = elf_st_other(vis, nonvis); }
1459
1460   void
1461   put_st_shndx(Elf_Half v)
1462   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1463
1464   Sym<size, big_endian>
1465   sym()
1466   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1467
1468  private:
1469   internal::Sym_data<size>* p_;
1470 };
1471
1472 // Accessor classes for an ELF REL relocation entry.
1473
1474 template<int size, bool big_endian>
1475 class Rel
1476 {
1477  public:
1478   Rel(const unsigned char* p)
1479     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1480   { }
1481
1482   template<typename File>
1483   Rel(File* file, typename File::Location loc)
1484     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1485            file->view(loc.file_offset, loc.data_size).data()))
1486   { }
1487
1488   typename Elf_types<size>::Elf_Addr
1489   get_r_offset() const
1490   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1491
1492   typename Elf_types<size>::Elf_WXword
1493   get_r_info() const
1494   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1495
1496  private:
1497   const internal::Rel_data<size>* p_;
1498 };
1499
1500 // Writer class for an ELF Rel relocation.
1501
1502 template<int size, bool big_endian>
1503 class Rel_write
1504 {
1505  public:
1506   Rel_write(unsigned char* p)
1507     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1508   { }
1509
1510   void
1511   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1512   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1513
1514   void
1515   put_r_info(typename Elf_types<size>::Elf_WXword v)
1516   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1517
1518  private:
1519   internal::Rel_data<size>* p_;
1520 };
1521
1522 // Accessor class for an ELF Rela relocation.
1523
1524 template<int size, bool big_endian>
1525 class Rela
1526 {
1527  public:
1528   Rela(const unsigned char* p)
1529     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1530   { }
1531
1532   template<typename File>
1533   Rela(File* file, typename File::Location loc)
1534     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1535            file->view(loc.file_offset, loc.data_size).data()))
1536   { }
1537
1538   typename Elf_types<size>::Elf_Addr
1539   get_r_offset() const
1540   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1541
1542   typename Elf_types<size>::Elf_WXword
1543   get_r_info() const
1544   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1545
1546   typename Elf_types<size>::Elf_Swxword
1547   get_r_addend() const
1548   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1549
1550  private:
1551   const internal::Rela_data<size>* p_;
1552 };
1553
1554 // Writer class for an ELF Rela relocation.
1555
1556 template<int size, bool big_endian>
1557 class Rela_write
1558 {
1559  public:
1560   Rela_write(unsigned char* p)
1561     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1562   { }
1563
1564   void
1565   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1566   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1567
1568   void
1569   put_r_info(typename Elf_types<size>::Elf_WXword v)
1570   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1571
1572   void
1573   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1574   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1575
1576  private:
1577   internal::Rela_data<size>* p_;
1578 };
1579
1580 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1581 // PT_DYNAMIC segment.
1582
1583 template<int size, bool big_endian>
1584 class Dyn
1585 {
1586  public:
1587   Dyn(const unsigned char* p)
1588     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1589   { }
1590
1591   template<typename File>
1592   Dyn(File* file, typename File::Location loc)
1593     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1594            file->view(loc.file_offset, loc.data_size).data()))
1595   { }
1596
1597   typename Elf_types<size>::Elf_Swxword
1598   get_d_tag() const
1599   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1600
1601   typename Elf_types<size>::Elf_WXword
1602   get_d_val() const
1603   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1604
1605   typename Elf_types<size>::Elf_Addr
1606   get_d_ptr() const
1607   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1608
1609  private:
1610   const internal::Dyn_data<size>* p_;
1611 };
1612
1613 // Write class for an entry in the SHT_DYNAMIC section.
1614
1615 template<int size, bool big_endian>
1616 class Dyn_write
1617 {
1618  public:
1619   Dyn_write(unsigned char* p)
1620     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1621   { }
1622
1623   void
1624   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1625   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1626
1627   void
1628   put_d_val(typename Elf_types<size>::Elf_WXword v)
1629   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1630
1631   void
1632   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1633   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1634
1635  private:
1636   internal::Dyn_data<size>* p_;
1637 };
1638
1639 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1640
1641 template<int size, bool big_endian>
1642 class Verdef
1643 {
1644  public:
1645   Verdef(const unsigned char* p)
1646     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1647   { }
1648
1649   template<typename File>
1650   Verdef(File* file, typename File::Location loc)
1651     : p_(reinterpret_cast<const internal::Verdef_data*>(
1652            file->view(loc.file_offset, loc.data_size).data()))
1653   { }
1654
1655   Elf_Half
1656   get_vd_version() const
1657   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1658
1659   Elf_Half
1660   get_vd_flags() const
1661   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1662
1663   Elf_Half
1664   get_vd_ndx() const
1665   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1666
1667   Elf_Half
1668   get_vd_cnt() const
1669   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1670
1671   Elf_Word
1672   get_vd_hash() const
1673   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1674
1675   Elf_Word
1676   get_vd_aux() const
1677   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1678
1679   Elf_Word
1680   get_vd_next() const
1681   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1682
1683  private:
1684   const internal::Verdef_data* p_;
1685 };
1686
1687 template<int size, bool big_endian>
1688 class Verdef_write
1689 {
1690  public:
1691   Verdef_write(unsigned char* p)
1692     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1693   { }
1694
1695   void
1696   set_vd_version(Elf_Half v)
1697   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1698
1699   void
1700   set_vd_flags(Elf_Half v)
1701   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1702
1703   void
1704   set_vd_ndx(Elf_Half v)
1705   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1706
1707   void
1708   set_vd_cnt(Elf_Half v)
1709   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1710
1711   void
1712   set_vd_hash(Elf_Word v)
1713   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1714
1715   void
1716   set_vd_aux(Elf_Word v)
1717   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1718
1719   void
1720   set_vd_next(Elf_Word v)
1721   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1722
1723  private:
1724   internal::Verdef_data* p_;
1725 };
1726
1727 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1728 // section.
1729
1730 template<int size, bool big_endian>
1731 class Verdaux
1732 {
1733  public:
1734   Verdaux(const unsigned char* p)
1735     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1736   { }
1737
1738   template<typename File>
1739   Verdaux(File* file, typename File::Location loc)
1740     : p_(reinterpret_cast<const internal::Verdaux_data*>(
1741            file->view(loc.file_offset, loc.data_size).data()))
1742   { }
1743
1744   Elf_Word
1745   get_vda_name() const
1746   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
1747
1748   Elf_Word
1749   get_vda_next() const
1750   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
1751
1752  private:
1753   const internal::Verdaux_data* p_;
1754 };
1755
1756 template<int size, bool big_endian>
1757 class Verdaux_write
1758 {
1759  public:
1760   Verdaux_write(unsigned char* p)
1761     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
1762   { }
1763
1764   void
1765   set_vda_name(Elf_Word v)
1766   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
1767
1768   void
1769   set_vda_next(Elf_Word v)
1770   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
1771
1772  private:
1773   internal::Verdaux_data* p_;
1774 };
1775
1776 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
1777
1778 template<int size, bool big_endian>
1779 class Verneed
1780 {
1781  public:
1782   Verneed(const unsigned char* p)
1783     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
1784   { }
1785
1786   template<typename File>
1787   Verneed(File* file, typename File::Location loc)
1788     : p_(reinterpret_cast<const internal::Verneed_data*>(
1789            file->view(loc.file_offset, loc.data_size).data()))
1790   { }
1791
1792   Elf_Half
1793   get_vn_version() const
1794   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
1795
1796   Elf_Half
1797   get_vn_cnt() const
1798   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
1799
1800   Elf_Word
1801   get_vn_file() const
1802   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
1803
1804   Elf_Word
1805   get_vn_aux() const
1806   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
1807
1808   Elf_Word
1809   get_vn_next() const
1810   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
1811
1812  private:
1813   const internal::Verneed_data* p_;
1814 };
1815
1816 template<int size, bool big_endian>
1817 class Verneed_write
1818 {
1819  public:
1820   Verneed_write(unsigned char* p)
1821     : p_(reinterpret_cast<internal::Verneed_data*>(p))
1822   { }
1823
1824   void
1825   set_vn_version(Elf_Half v)
1826   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
1827
1828   void
1829   set_vn_cnt(Elf_Half v)
1830   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
1831
1832   void
1833   set_vn_file(Elf_Word v)
1834   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
1835
1836   void
1837   set_vn_aux(Elf_Word v)
1838   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
1839
1840   void
1841   set_vn_next(Elf_Word v)
1842   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
1843
1844  private:
1845   internal::Verneed_data* p_;
1846 };
1847
1848 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
1849 // section.
1850
1851 template<int size, bool big_endian>
1852 class Vernaux
1853 {
1854  public:
1855   Vernaux(const unsigned char* p)
1856     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
1857   { }
1858
1859   template<typename File>
1860   Vernaux(File* file, typename File::Location loc)
1861     : p_(reinterpret_cast<const internal::Vernaux_data*>(
1862            file->view(loc.file_offset, loc.data_size).data()))
1863   { }
1864
1865   Elf_Word
1866   get_vna_hash() const
1867   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
1868
1869   Elf_Half
1870   get_vna_flags() const
1871   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
1872
1873   Elf_Half
1874   get_vna_other() const
1875   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
1876
1877   Elf_Word
1878   get_vna_name() const
1879   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
1880
1881   Elf_Word
1882   get_vna_next() const
1883   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
1884
1885  private:
1886   const internal::Vernaux_data* p_;
1887 };
1888
1889 template<int size, bool big_endian>
1890 class Vernaux_write
1891 {
1892  public:
1893   Vernaux_write(unsigned char* p)
1894     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
1895   { }
1896
1897   void
1898   set_vna_hash(Elf_Word v)
1899   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
1900
1901   void
1902   set_vna_flags(Elf_Half v)
1903   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
1904
1905   void
1906   set_vna_other(Elf_Half v)
1907   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
1908
1909   void
1910   set_vna_name(Elf_Word v)
1911   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
1912
1913   void
1914   set_vna_next(Elf_Word v)
1915   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
1916
1917  private:
1918   internal::Vernaux_data* p_;
1919 };
1920
1921 } // End namespace elfcpp.
1922
1923 #endif // !defined(ELFPCP_H)