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