elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright (C) 2006-2022 Free Software Foundation, Inc.
   4 // Written by Ian Lance Taylor <iant@google.com>.
   5
   6 // This file is part of elfcpp.
   7
   8 // This program is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU Library General Public License
  10 // as published by the Free Software Foundation; either version 2, or
  11 // (at your option) any later version.
  12
  13 // In addition to the permissions in the GNU Library General Public
  14 // License, the Free Software Foundation gives you unlimited
  15 // permission to link the compiled version of this file into
  16 // combinations with other programs, and to distribute those
  17 // combinations without any restriction coming from the use of this
  18 // file.  (The Library Public License restrictions do apply in other
  19 // respects; for example, they cover modification of the file, and
  20 // distribution when not linked into a combined executable.)
  21
  22 // This program is distributed in the hope that it will be useful, but
  23 // WITHOUT ANY WARRANTY; without even the implied warranty of
  24 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  25 // Library General Public License for more details.
  26
  27 // You should have received a copy of the GNU Library General Public
  28 // License along with this program; if not, write to the Free Software
  29 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  30 // 02110-1301, USA.
  31
  32 // This is the external interface for elfcpp.
  33
  34 #ifndef ELFCPP_H
  35 #define ELFCPP_H
  36
  37 #include "elfcpp_swap.h"
  38
  39 #include <stdint.h>
  40
  41 namespace elfcpp
  42 {
  43
  44 // Basic ELF types.
  45
  46 // These types are always the same size.
  47
  48 typedef uint16_t Elf_Half;
  49 typedef uint32_t Elf_Word;
  50 typedef int32_t Elf_Sword;
  51 typedef uint64_t Elf_Xword;
  52 typedef int64_t Elf_Sxword;
  53
  54 // These types vary in size depending on the ELF file class.  The
  55 // template parameter should be 32 or 64.
  56
  57 template<int size>
  58 struct Elf_types;
  59
  60 template<>
  61 struct Elf_types<32>
  62 {
  63   typedef uint32_t Elf_Addr;
  64   typedef uint32_t Elf_Off;
  65   typedef uint32_t Elf_WXword;
  66   typedef int32_t Elf_Swxword;
  67 };
  68
  69 template<>
  70 struct Elf_types<64>
  71 {
  72   typedef uint64_t Elf_Addr;
  73   typedef uint64_t Elf_Off;
  74   typedef uint64_t Elf_WXword;
  75   typedef int64_t Elf_Swxword;
  76 };
  77
  78 // Offsets within the Ehdr e_ident field.
  79
  80 const int EI_MAG0 = 0;
  81 const int EI_MAG1 = 1;
  82 const int EI_MAG2 = 2;
  83 const int EI_MAG3 = 3;
  84 const int EI_CLASS = 4;
  85 const int EI_DATA = 5;
  86 const int EI_VERSION = 6;
  87 const int EI_OSABI = 7;
  88 const int EI_ABIVERSION = 8;
  89 const int EI_PAD = 9;
  90 const int EI_NIDENT = 16;
  91
  92 // The valid values found in Ehdr e_ident[EI_MAG0 through EI_MAG3].
  93
  94 const int ELFMAG0 = 0x7f;
  95 const int ELFMAG1 = 'E';
  96 const int ELFMAG2 = 'L';
  97 const int ELFMAG3 = 'F';
  98
  99 // The valid values found in Ehdr e_ident[EI_CLASS].
 100
 101 enum
 102 {
 103   ELFCLASSNONE = 0,
 104   ELFCLASS32 = 1,
 105   ELFCLASS64 = 2
 106 };
 107
 108 // The valid values found in Ehdr e_ident[EI_DATA].
 109
 110 enum
 111 {
 112   ELFDATANONE = 0,
 113   ELFDATA2LSB = 1,
 114   ELFDATA2MSB = 2
 115 };
 116
 117 // The valid values found in Ehdr e_ident[EI_VERSION] and e_version.
 118
 119 enum
 120 {
 121   EV_NONE = 0,
 122   EV_CURRENT = 1
 123 };
 124
 125 // The valid values found in Ehdr e_ident[EI_OSABI].
 126
 127 enum ELFOSABI
 128 {
 129   ELFOSABI_NONE = 0,
 130   ELFOSABI_HPUX = 1,
 131   ELFOSABI_NETBSD = 2,
 132   ELFOSABI_GNU = 3,
 133   // ELFOSABI_LINUX is an alias for ELFOSABI_GNU.
 134   ELFOSABI_LINUX = 3,
 135   ELFOSABI_SOLARIS = 6,
 136   ELFOSABI_AIX = 7,
 137   ELFOSABI_IRIX = 8,
 138   ELFOSABI_FREEBSD = 9,
 139   ELFOSABI_TRU64 = 10,
 140   ELFOSABI_MODESTO = 11,
 141   ELFOSABI_OPENBSD = 12,
 142   ELFOSABI_OPENVMS = 13,
 143   ELFOSABI_NSK = 14,
 144   ELFOSABI_AROS = 15,
 145   // A GNU extension for the ARM.
 146   ELFOSABI_ARM = 97,
 147   // A GNU extension for the MSP.
 148   ELFOSABI_STANDALONE = 255
 149 };
 150
 151 // The valid values found in the Ehdr e_type field.
 152
 153 enum ET
 154 {
 155   ET_NONE = 0,
 156   ET_REL = 1,
 157   ET_EXEC = 2,
 158   ET_DYN = 3,
 159   ET_CORE = 4,
 160   ET_LOOS = 0xfe00,
 161   ET_HIOS = 0xfeff,
 162   ET_LOPROC = 0xff00,
 163   ET_HIPROC = 0xffff
 164 };
 165
 166 // The valid values found in the Ehdr e_machine field.
 167
 168 enum EM
 169 {
 170   EM_NONE = 0,
 171   EM_M32 = 1,
 172   EM_SPARC = 2,
 173   EM_386 = 3,
 174   EM_68K = 4,
 175   EM_88K = 5,
 176   EM_IAMCU = 6,
 177   EM_860 = 7,
 178   EM_MIPS = 8,
 179   EM_S370 = 9,
 180   EM_MIPS_RS3_LE = 10,
 181   // 11 was the old Sparc V9 ABI.
 182   // 12 through 14 are reserved.
 183   EM_PARISC = 15,
 184   // 16 is reserved.
 185   // Some old PowerPC object files use 17.
 186   EM_VPP500 = 17,
 187   EM_SPARC32PLUS = 18,
 188   EM_960 = 19,
 189   EM_PPC = 20,
 190   EM_PPC64 = 21,
 191   EM_S390 = 22,
 192   // 23 through 35 are served.
 193   EM_V800 = 36,
 194   EM_FR20 = 37,
 195   EM_RH32 = 38,
 196   EM_RCE = 39,
 197   EM_ARM = 40,
 198   EM_ALPHA = 41,
 199   EM_SH = 42,
 200   EM_SPARCV9 = 43,
 201   EM_TRICORE = 44,
 202   EM_ARC = 45,
 203   EM_H8_300 = 46,
 204   EM_H8_300H = 47,
 205   EM_H8S = 48,
 206   EM_H8_500 = 49,
 207   EM_IA_64 = 50,
 208   EM_MIPS_X = 51,
 209   EM_COLDFIRE = 52,
 210   EM_68HC12 = 53,
 211   EM_MMA = 54,
 212   EM_PCP = 55,
 213   EM_NCPU = 56,
 214   EM_NDR1 = 57,
 215   EM_STARCORE = 58,
 216   EM_ME16 = 59,
 217   EM_ST100 = 60,
 218   EM_TINYJ = 61,
 219   EM_X86_64 = 62,
 220   EM_PDSP = 63,
 221   EM_PDP10 = 64,
 222   EM_PDP11 = 65,
 223   EM_FX66 = 66,
 224   EM_ST9PLUS = 67,
 225   EM_ST7 = 68,
 226   EM_68HC16 = 69,
 227   EM_68HC11 = 70,
 228   EM_68HC08 = 71,
 229   EM_68HC05 = 72,
 230   EM_SVX = 73,
 231   EM_ST19 = 74,
 232   EM_VAX = 75,
 233   EM_CRIS = 76,
 234   EM_JAVELIN = 77,
 235   EM_FIREPATH = 78,
 236   EM_ZSP = 79,
 237   EM_MMIX = 80,
 238   EM_HUANY = 81,
 239   EM_PRISM = 82,
 240   EM_AVR = 83,
 241   EM_FR30 = 84,
 242   EM_D10V = 85,
 243   EM_D30V = 86,
 244   EM_V850 = 87,
 245   EM_M32R = 88,
 246   EM_MN10300 = 89,
 247   EM_MN10200 = 90,
 248   EM_PJ = 91,
 249   EM_OR1K = 92,
 250   EM_ARC_A5 = 93,
 251   EM_XTENSA = 94,
 252   EM_VIDEOCORE = 95,
 253   EM_TMM_GPP = 96,
 254   EM_NS32K = 97,
 255   EM_TPC = 98,
 256   // Some old picoJava object files use 99 (EM_PJ is correct).
 257   EM_SNP1K = 99,
 258   EM_ST200 = 100,
 259   EM_IP2K = 101,
 260   EM_MAX = 102,
 261   EM_CR = 103,
 262   EM_F2MC16 = 104,
 263   EM_MSP430 = 105,
 264   EM_BLACKFIN = 106,
 265   EM_SE_C33 = 107,
 266   EM_SEP = 108,
 267   EM_ARCA = 109,
 268   EM_UNICORE = 110,
 269   EM_ALTERA_NIOS2 = 113,
 270   EM_CRX = 114,
 271   EM_TI_PRU = 144,
 272   EM_AARCH64 = 183,
 273   EM_TILEGX = 191,
 274   // The Morph MT.
 275   EM_MT = 0x2530,
 276   // DLX.
 277   EM_DLX = 0x5aa5,
 278   // FRV.
 279   EM_FRV = 0x5441,
 280   // Infineon Technologies 16-bit microcontroller with C166-V2 core.
 281   EM_X16X = 0x4688,
 282   // Xstorym16
 283   EM_XSTORMY16 = 0xad45,
 284   // Renesas M32C
 285   EM_M32C = 0xfeb0,
 286   // Vitesse IQ2000
 287   EM_IQ2000 = 0xfeba,
 288   // NIOS
 289   EM_NIOS32 = 0xfebb
 290   // Old AVR objects used 0x1057 (EM_AVR is correct).
 291   // Old MSP430 objects used 0x1059 (EM_MSP430 is correct).
 292   // Old FR30 objects used 0x3330 (EM_FR30 is correct).
 293   // Old OpenRISC objects used 0x3426 and 0x8472 (EM_OR1K is correct).
 294   // Old D10V objects used 0x7650 (EM_D10V is correct).
 295   // Old D30V objects used 0x7676 (EM_D30V is correct).
 296   // Old IP2X objects used 0x8217 (EM_IP2K is correct).
 297   // Old PowerPC objects used 0x9025 (EM_PPC is correct).
 298   // Old Alpha objects used 0x9026 (EM_ALPHA is correct).
 299   // Old M32R objects used 0x9041 (EM_M32R is correct).
 300   // Old V850 objects used 0x9080 (EM_V850 is correct).
 301   // Old S/390 objects used 0xa390 (EM_S390 is correct).
 302   // Old Xtensa objects used 0xabc7 (EM_XTENSA is correct).
 303   // Old MN10300 objects used 0xbeef (EM_MN10300 is correct).
 304   // Old MN10200 objects used 0xdead (EM_MN10200 is correct).
 305 };
 306
 307 // A special value found in the Ehdr e_phnum field.
 308
 309 enum
 310 {
 311   // Number of program segments stored in sh_info field of first
 312   // section headre.
 313   PN_XNUM = 0xffff
 314 };
 315
 316 // Special section indices.
 317
 318 enum
 319 {
 320   SHN_UNDEF = 0,
 321   SHN_LORESERVE = 0xff00,
 322   SHN_LOPROC = 0xff00,
 323   SHN_HIPROC = 0xff1f,
 324   SHN_LOOS = 0xff20,
 325   SHN_HIOS = 0xff3f,
 326   SHN_ABS = 0xfff1,
 327   SHN_COMMON = 0xfff2,
 328   SHN_XINDEX = 0xffff,
 329   SHN_HIRESERVE = 0xffff,
 330
 331   // Provide for initial and final section ordering in conjunction
 332   // with the SHF_LINK_ORDER and SHF_ORDERED section flags.
 333   SHN_BEFORE = 0xff00,
 334   SHN_AFTER = 0xff01,
 335
 336   // x86_64 specific large common symbol.
 337   SHN_X86_64_LCOMMON = 0xff02
 338 };
 339
 340 // The valid values found in the Shdr sh_type field.
 341
 342 enum SHT
 343 {
 344   SHT_NULL = 0,
 345   SHT_PROGBITS = 1,
 346   SHT_SYMTAB = 2,
 347   SHT_STRTAB = 3,
 348   SHT_RELA = 4,
 349   SHT_HASH = 5,
 350   SHT_DYNAMIC = 6,
 351   SHT_NOTE = 7,
 352   SHT_NOBITS = 8,
 353   SHT_REL = 9,
 354   SHT_SHLIB = 10,
 355   SHT_DYNSYM = 11,
 356   SHT_INIT_ARRAY = 14,
 357   SHT_FINI_ARRAY = 15,
 358   SHT_PREINIT_ARRAY = 16,
 359   SHT_GROUP = 17,
 360   SHT_SYMTAB_SHNDX = 18,
 361   SHT_LOOS = 0x60000000,
 362   SHT_HIOS = 0x6fffffff,
 363   SHT_LOPROC = 0x70000000,
 364   SHT_HIPROC = 0x7fffffff,
 365   SHT_LOUSER = 0x80000000,
 366   SHT_HIUSER = 0xffffffff,
 367   // The remaining values are not in the standard.
 368   // Incremental build data.
 369   SHT_GNU_INCREMENTAL_INPUTS = 0x6fff4700,
 370   SHT_GNU_INCREMENTAL_SYMTAB = 0x6fff4701,
 371   SHT_GNU_INCREMENTAL_RELOCS = 0x6fff4702,
 372   SHT_GNU_INCREMENTAL_GOT_PLT = 0x6fff4703,
 373   // Object attributes.
 374   SHT_GNU_ATTRIBUTES = 0x6ffffff5,
 375   // GNU style dynamic hash table.
 376   SHT_GNU_HASH = 0x6ffffff6,
 377   // List of prelink dependencies.
 378   SHT_GNU_LIBLIST = 0x6ffffff7,
 379   // Versions defined by file.
 380   SHT_SUNW_verdef = 0x6ffffffd,
 381   SHT_GNU_verdef = 0x6ffffffd,
 382   // Versions needed by file.
 383   SHT_SUNW_verneed = 0x6ffffffe,
 384   SHT_GNU_verneed = 0x6ffffffe,
 385   // Symbol versions,
 386   SHT_SUNW_versym = 0x6fffffff,
 387   SHT_GNU_versym = 0x6fffffff,
 388
 389   SHT_SPARC_GOTDATA = 0x70000000,
 390
 391   // ARM-specific section types.
 392   // Exception Index table.
 393   SHT_ARM_EXIDX = 0x70000001,
 394   // BPABI DLL dynamic linking pre-emption map.
 395   SHT_ARM_PREEMPTMAP = 0x70000002,
 396   // Object file compatibility attributes.
 397   SHT_ARM_ATTRIBUTES = 0x70000003,
 398   // Support for debugging overlaid programs.
 399   SHT_ARM_DEBUGOVERLAY = 0x70000004,
 400   SHT_ARM_OVERLAYSECTION = 0x70000005,
 401
 402   // x86_64 unwind information.
 403   SHT_X86_64_UNWIND = 0x70000001,
 404
 405   // MIPS-specific section types.
 406   // Section contains register usage information.
 407   SHT_MIPS_REGINFO = 0x70000006,
 408   // Section contains miscellaneous options.
 409   SHT_MIPS_OPTIONS = 0x7000000d,
 410   // ABI related flags section.
 411   SHT_MIPS_ABIFLAGS = 0x7000002a,
 412
 413   // AARCH64-specific section type.
 414   SHT_AARCH64_ATTRIBUTES = 0x70000003,
 415
 416   // CSKY-specific section types.
 417   // Object file compatibility attributes.
 418   SHT_CSKY_ATTRIBUTES = 0x70000001,
 419
 420   // Link editor is to sort the entries in this section based on the
 421   // address specified in the associated symbol table entry.
 422   SHT_ORDERED = 0x7fffffff
 423 };
 424
 425 // The valid bit flags found in the Shdr sh_flags field.
 426
 427 enum SHF
 428 {
 429   SHF_WRITE = 0x1,
 430   SHF_ALLOC = 0x2,
 431   SHF_EXECINSTR = 0x4,
 432   SHF_MERGE = 0x10,
 433   SHF_STRINGS = 0x20,
 434   SHF_INFO_LINK = 0x40,
 435   SHF_LINK_ORDER = 0x80,
 436   SHF_OS_NONCONFORMING = 0x100,
 437   SHF_GROUP = 0x200,
 438   SHF_TLS = 0x400,
 439   SHF_COMPRESSED = 0x800,
 440   SHF_MASKOS = 0x0ff00000,
 441   SHF_GNU_RETAIN = 0x200000,
 442   SHF_MASKPROC = 0xf0000000,
 443
 444   // Indicates this section requires ordering in relation to
 445   // other sections of the same type.  Ordered sections are
 446   // combined within the section pointed to by the sh_link entry.
 447   // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
 448   // sorted section is to precede or follow, respectively, all
 449   // other sections in the set being ordered.
 450   SHF_ORDERED = 0x40000000,
 451   // This section is excluded from input to the link-edit of an
 452   // executable or shared object.  This flag is ignored if SHF_ALLOC
 453   // is also set, or if relocations exist against the section.
 454   SHF_EXCLUDE = 0x80000000,
 455
 456   // Section with data that is GP relative addressable.
 457   SHF_MIPS_GPREL = 0x10000000,
 458
 459   // x86_64 specific large section.
 460   SHF_X86_64_LARGE = 0x10000000
 461 };
 462
 463 // Values which appear in the first Elf_WXword of the section data
 464 // of a SHF_COMPRESSED section.
 465 enum
 466 {
 467   ELFCOMPRESS_ZLIB = 1,
 468   ELFCOMPRESS_LOOS = 0x60000000,
 469   ELFCOMPRESS_HIOS = 0x6fffffff,
 470   ELFCOMPRESS_LOPROC = 0x70000000,
 471   ELFCOMPRESS_HIPROC = 0x7fffffff,
 472 };
 473
 474 // Bit flags which appear in the first 32-bit word of the section data
 475 // of a SHT_GROUP section.
 476
 477 enum
 478 {
 479   GRP_COMDAT = 0x1,
 480   GRP_MASKOS = 0x0ff00000,
 481   GRP_MASKPROC = 0xf0000000
 482 };
 483
 484 // The valid values found in the Phdr p_type field.
 485
 486 enum PT
 487 {
 488   PT_NULL = 0,
 489   PT_LOAD = 1,
 490   PT_DYNAMIC = 2,
 491   PT_INTERP = 3,
 492   PT_NOTE = 4,
 493   PT_SHLIB = 5,
 494   PT_PHDR = 6,
 495   PT_TLS = 7,
 496   PT_LOOS = 0x60000000,
 497   PT_HIOS = 0x6fffffff,
 498   PT_LOPROC = 0x70000000,
 499   PT_HIPROC = 0x7fffffff,
 500   // The remaining values are not in the standard.
 501   // Frame unwind information.
 502   PT_GNU_EH_FRAME = 0x6474e550,
 503   PT_SUNW_EH_FRAME = 0x6474e550,
 504   // Stack flags.
 505   PT_GNU_STACK = 0x6474e551,
 506   // Read only after relocation.
 507   PT_GNU_RELRO = 0x6474e552,
 508   // Platform architecture compatibility information
 509   PT_ARM_ARCHEXT = 0x70000000,
 510   // Exception unwind tables
 511   PT_ARM_EXIDX = 0x70000001,
 512   // Register usage information.  Identifies one .reginfo section.
 513   PT_MIPS_REGINFO =0x70000000,
 514   // Runtime procedure table.
 515   PT_MIPS_RTPROC = 0x70000001,
 516   // .MIPS.options section.
 517   PT_MIPS_OPTIONS = 0x70000002,
 518   // .MIPS.abiflags section.
 519   PT_MIPS_ABIFLAGS = 0x70000003,
 520   // Platform architecture compatibility information
 521   PT_AARCH64_ARCHEXT = 0x70000000,
 522   // Exception unwind tables
 523   PT_AARCH64_UNWIND = 0x70000001,
 524   // 4k page table size
 525   PT_S390_PGSTE = 0x70000000,
 526 };
 527
 528 // The valid bit flags found in the Phdr p_flags field.
 529
 530 enum PF
 531 {
 532   PF_X = 0x1,
 533   PF_W = 0x2,
 534   PF_R = 0x4,
 535   PF_MASKOS = 0x0ff00000,
 536   PF_MASKPROC = 0xf0000000
 537 };
 538
 539 // Symbol binding from Sym st_info field.
 540
 541 enum STB
 542 {
 543   STB_LOCAL = 0,
 544   STB_GLOBAL = 1,
 545   STB_WEAK = 2,
 546   STB_LOOS = 10,
 547   STB_GNU_UNIQUE = 10,
 548   STB_HIOS = 12,
 549   STB_LOPROC = 13,
 550   STB_HIPROC = 15
 551 };
 552
 553 // Symbol types from Sym st_info field.
 554
 555 enum STT
 556 {
 557   STT_NOTYPE = 0,
 558   STT_OBJECT = 1,
 559   STT_FUNC = 2,
 560   STT_SECTION = 3,
 561   STT_FILE = 4,
 562   STT_COMMON = 5,
 563   STT_TLS = 6,
 564
 565   // GNU extension: symbol value points to a function which is called
 566   // at runtime to determine the final value of the symbol.
 567   STT_GNU_IFUNC = 10,
 568
 569   STT_LOOS = 10,
 570   STT_HIOS = 12,
 571   STT_LOPROC = 13,
 572   STT_HIPROC = 15,
 573
 574   // The section type that must be used for register symbols on
 575   // Sparc.  These symbols initialize a global register.
 576   STT_SPARC_REGISTER = 13,
 577
 578   // ARM: a THUMB function.  This is not defined in ARM ELF Specification but
 579   // used by the GNU tool-chain.
 580   STT_ARM_TFUNC = 13
 581 };
 582
 583 inline STB
 584 elf_st_bind(unsigned char info)
 585 {
 586   return static_cast<STB>(info >> 4);
 587 }
 588
 589 inline STT
 590 elf_st_type(unsigned char info)
 591 {
 592   return static_cast<STT>(info & 0xf);
 593 }
 594
 595 inline unsigned char
 596 elf_st_info(STB bind, STT type)
 597 {
 598   return ((static_cast<unsigned char>(bind) << 4)
 599           + (static_cast<unsigned char>(type) & 0xf));
 600 }
 601
 602 // Symbol visibility from Sym st_other field.
 603
 604 enum STV
 605 {
 606   STV_DEFAULT = 0,
 607   STV_INTERNAL = 1,
 608   STV_HIDDEN = 2,
 609   STV_PROTECTED = 3
 610 };
 611
 612 inline STV
 613 elf_st_visibility(unsigned char other)
 614 {
 615   return static_cast<STV>(other & 0x3);
 616 }
 617
 618 inline unsigned char
 619 elf_st_nonvis(unsigned char other)
 620 {
 621   return static_cast<STV>(other >> 2);
 622 }
 623
 624 inline unsigned char
 625 elf_st_other(STV vis, unsigned char nonvis)
 626 {
 627   return ((nonvis << 2)
 628           + (static_cast<unsigned char>(vis) & 3));
 629 }
 630
 631 // Reloc information from Rel/Rela r_info field.
 632
 633 template<int size>
 634 unsigned int
 635 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 636
 637 template<>
 638 inline unsigned int
 639 elf_r_sym<32>(Elf_Word v)
 640 {
 641   return v >> 8;
 642 }
 643
 644 template<>
 645 inline unsigned int
 646 elf_r_sym<64>(Elf_Xword v)
 647 {
 648   return v >> 32;
 649 }
 650
 651 template<int size>
 652 unsigned int
 653 elf_r_type(typename Elf_types<size>::Elf_WXword);
 654
 655 template<>
 656 inline unsigned int
 657 elf_r_type<32>(Elf_Word v)
 658 {
 659   return v & 0xff;
 660 }
 661
 662 template<>
 663 inline unsigned int
 664 elf_r_type<64>(Elf_Xword v)
 665 {
 666   return v & 0xffffffff;
 667 }
 668
 669 template<int size>
 670 typename Elf_types<size>::Elf_WXword
 671 elf_r_info(unsigned int s, unsigned int t);
 672
 673 template<>
 674 inline Elf_Word
 675 elf_r_info<32>(unsigned int s, unsigned int t)
 676 {
 677   return (s << 8) + (t & 0xff);
 678 }
 679
 680 template<>
 681 inline Elf_Xword
 682 elf_r_info<64>(unsigned int s, unsigned int t)
 683 {
 684   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 685 }
 686
 687 // Dynamic tags found in the PT_DYNAMIC segment.
 688
 689 enum DT
 690 {
 691   DT_NULL = 0,
 692   DT_NEEDED = 1,
 693   DT_PLTRELSZ = 2,
 694   DT_PLTGOT = 3,
 695   DT_HASH = 4,
 696   DT_STRTAB = 5,
 697   DT_SYMTAB = 6,
 698   DT_RELA = 7,
 699   DT_RELASZ = 8,
 700   DT_RELAENT = 9,
 701   DT_STRSZ = 10,
 702   DT_SYMENT = 11,
 703   DT_INIT = 12,
 704   DT_FINI = 13,
 705   DT_SONAME = 14,
 706   DT_RPATH = 15,
 707   DT_SYMBOLIC = 16,
 708   DT_REL = 17,
 709   DT_RELSZ = 18,
 710   DT_RELENT = 19,
 711   DT_PLTREL = 20,
 712   DT_DEBUG = 21,
 713   DT_TEXTREL = 22,
 714   DT_JMPREL = 23,
 715   DT_BIND_NOW = 24,
 716   DT_INIT_ARRAY = 25,
 717   DT_FINI_ARRAY = 26,
 718   DT_INIT_ARRAYSZ = 27,
 719   DT_FINI_ARRAYSZ = 28,
 720   DT_RUNPATH = 29,
 721   DT_FLAGS = 30,
 722
 723   // This is used to mark a range of dynamic tags.  It is not really
 724   // a tag value.
 725   DT_ENCODING = 32,
 726
 727   DT_PREINIT_ARRAY = 32,
 728   DT_PREINIT_ARRAYSZ = 33,
 729   DT_LOOS = 0x6000000d,
 730   DT_HIOS = 0x6ffff000,
 731   DT_LOPROC = 0x70000000,
 732   DT_HIPROC = 0x7fffffff,
 733
 734   // The remaining values are extensions used by GNU or Solaris.
 735   DT_VALRNGLO = 0x6ffffd00,
 736   DT_GNU_FLAGS_1 = 0x6ffffdf4,
 737   DT_GNU_PRELINKED = 0x6ffffdf5,
 738   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 739   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 740   DT_CHECKSUM = 0x6ffffdf8,
 741   DT_PLTPADSZ = 0x6ffffdf9,
 742   DT_MOVEENT = 0x6ffffdfa,
 743   DT_MOVESZ = 0x6ffffdfb,
 744   DT_FEATURE = 0x6ffffdfc,
 745   DT_POSFLAG_1 = 0x6ffffdfd,
 746   DT_SYMINSZ = 0x6ffffdfe,
 747   DT_SYMINENT = 0x6ffffdff,
 748   DT_VALRNGHI = 0x6ffffdff,
 749
 750   DT_ADDRRNGLO = 0x6ffffe00,
 751   DT_GNU_HASH = 0x6ffffef5,
 752   DT_TLSDESC_PLT = 0x6ffffef6,
 753   DT_TLSDESC_GOT = 0x6ffffef7,
 754   DT_GNU_CONFLICT = 0x6ffffef8,
 755   DT_GNU_LIBLIST = 0x6ffffef9,
 756   DT_CONFIG = 0x6ffffefa,
 757   DT_DEPAUDIT = 0x6ffffefb,
 758   DT_AUDIT = 0x6ffffefc,
 759   DT_PLTPAD = 0x6ffffefd,
 760   DT_MOVETAB = 0x6ffffefe,
 761   DT_SYMINFO = 0x6ffffeff,
 762   DT_ADDRRNGHI = 0x6ffffeff,
 763
 764   DT_RELACOUNT = 0x6ffffff9,
 765   DT_RELCOUNT = 0x6ffffffa,
 766   DT_FLAGS_1 = 0x6ffffffb,
 767   DT_VERDEF = 0x6ffffffc,
 768   DT_VERDEFNUM = 0x6ffffffd,
 769   DT_VERNEED = 0x6ffffffe,
 770   DT_VERNEEDNUM = 0x6fffffff,
 771
 772   DT_VERSYM = 0x6ffffff0,
 773
 774   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 775   DT_PPC_GOT = 0x70000000,
 776
 777   // Specify whether various optimisations are possible.
 778   DT_PPC_OPT = 0x70000001,
 779
 780   // Specify the start of the .glink section.
 781   DT_PPC64_GLINK = 0x70000000,
 782
 783   // Specify the start and size of the .opd section.
 784   DT_PPC64_OPD = 0x70000001,
 785   DT_PPC64_OPDSZ = 0x70000002,
 786
 787   // Specify whether various optimisations are possible.
 788   DT_PPC64_OPT = 0x70000003,
 789
 790   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 791   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 792   // symbol in the symbol table.
 793   DT_SPARC_REGISTER = 0x70000001,
 794
 795   // MIPS specific dynamic array tags.
 796   // 32 bit version number for runtime linker interface.
 797   DT_MIPS_RLD_VERSION = 0x70000001,
 798   // Time stamp.
 799   DT_MIPS_TIME_STAMP = 0x70000002,
 800   // Checksum of external strings and common sizes.
 801   DT_MIPS_ICHECKSUM = 0x70000003,
 802   // Index of version string in string table.
 803   DT_MIPS_IVERSION = 0x70000004,
 804   // 32 bits of flags.
 805   DT_MIPS_FLAGS = 0x70000005,
 806   // Base address of the segment.
 807   DT_MIPS_BASE_ADDRESS = 0x70000006,
 808   // ???
 809   DT_MIPS_MSYM = 0x70000007,
 810   // Address of .conflict section.
 811   DT_MIPS_CONFLICT = 0x70000008,
 812   // Address of .liblist section.
 813   DT_MIPS_LIBLIST = 0x70000009,
 814   // Number of local global offset table entries.
 815   DT_MIPS_LOCAL_GOTNO = 0x7000000a,
 816   // Number of entries in the .conflict section.
 817   DT_MIPS_CONFLICTNO = 0x7000000b,
 818   // Number of entries in the .liblist section.
 819   DT_MIPS_LIBLISTNO = 0x70000010,
 820   // Number of entries in the .dynsym section.
 821   DT_MIPS_SYMTABNO = 0x70000011,
 822   // Index of first external dynamic symbol not referenced locally.
 823   DT_MIPS_UNREFEXTNO = 0x70000012,
 824   // Index of first dynamic symbol in global offset table.
 825   DT_MIPS_GOTSYM = 0x70000013,
 826   // Number of page table entries in global offset table.
 827   DT_MIPS_HIPAGENO = 0x70000014,
 828   // Address of run time loader map, used for debugging.
 829   DT_MIPS_RLD_MAP = 0x70000016,
 830   // Delta C++ class definition.
 831   DT_MIPS_DELTA_CLASS = 0x70000017,
 832   // Number of entries in DT_MIPS_DELTA_CLASS.
 833   DT_MIPS_DELTA_CLASS_NO = 0x70000018,
 834   // Delta C++ class instances.
 835   DT_MIPS_DELTA_INSTANCE = 0x70000019,
 836   // Number of entries in DT_MIPS_DELTA_INSTANCE.
 837   DT_MIPS_DELTA_INSTANCE_NO = 0x7000001a,
 838   // Delta relocations.
 839   DT_MIPS_DELTA_RELOC = 0x7000001b,
 840   // Number of entries in DT_MIPS_DELTA_RELOC.
 841   DT_MIPS_DELTA_RELOC_NO = 0x7000001c,
 842   // Delta symbols that Delta relocations refer to.
 843   DT_MIPS_DELTA_SYM = 0x7000001d,
 844   // Number of entries in DT_MIPS_DELTA_SYM.
 845   DT_MIPS_DELTA_SYM_NO = 0x7000001e,
 846   // Delta symbols that hold class declarations.
 847   DT_MIPS_DELTA_CLASSSYM = 0x70000020,
 848   // Number of entries in DT_MIPS_DELTA_CLASSSYM.
 849   DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021,
 850   // Flags indicating information about C++ flavor.
 851   DT_MIPS_CXX_FLAGS = 0x70000022,
 852   // Pixie information (???).
 853   DT_MIPS_PIXIE_INIT = 0x70000023,
 854   // Address of .MIPS.symlib
 855   DT_MIPS_SYMBOL_LIB = 0x70000024,
 856   // The GOT index of the first PTE for a segment
 857   DT_MIPS_LOCALPAGE_GOTIDX = 0x70000025,
 858   // The GOT index of the first PTE for a local symbol
 859   DT_MIPS_LOCAL_GOTIDX = 0x70000026,
 860   // The GOT index of the first PTE for a hidden symbol
 861   DT_MIPS_HIDDEN_GOTIDX = 0x70000027,
 862   // The GOT index of the first PTE for a protected symbol
 863   DT_MIPS_PROTECTED_GOTIDX = 0x70000028,
 864   // Address of `.MIPS.options'.
 865   DT_MIPS_OPTIONS = 0x70000029,
 866   // Address of `.interface'.
 867   DT_MIPS_INTERFACE = 0x7000002a,
 868   // ???
 869   DT_MIPS_DYNSTR_ALIGN = 0x7000002b,
 870   // Size of the .interface section.
 871   DT_MIPS_INTERFACE_SIZE = 0x7000002c,
 872   // Size of rld_text_resolve function stored in the GOT.
 873   DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002d,
 874   // Default suffix of DSO to be added by rld on dlopen() calls.
 875   DT_MIPS_PERF_SUFFIX = 0x7000002e,
 876   // Size of compact relocation section (O32).
 877   DT_MIPS_COMPACT_SIZE = 0x7000002f,
 878   // GP value for auxiliary GOTs.
 879   DT_MIPS_GP_VALUE = 0x70000030,
 880   // Address of auxiliary .dynamic.
 881   DT_MIPS_AUX_DYNAMIC = 0x70000031,
 882   // Address of the base of the PLTGOT.
 883   DT_MIPS_PLTGOT = 0x70000032,
 884   // Points to the base of a writable PLT.
 885   DT_MIPS_RWPLT = 0x70000034,
 886   // Relative offset of run time loader map, used for debugging.
 887   DT_MIPS_RLD_MAP_REL = 0x70000035,
 888
 889   DT_AUXILIARY = 0x7ffffffd,
 890   DT_USED = 0x7ffffffe,
 891   DT_FILTER = 0x7fffffff
 892 };
 893
 894 // Flags found in the DT_FLAGS dynamic element.
 895
 896 enum DF
 897 {
 898   DF_ORIGIN = 0x1,
 899   DF_SYMBOLIC = 0x2,
 900   DF_TEXTREL = 0x4,
 901   DF_BIND_NOW = 0x8,
 902   DF_STATIC_TLS = 0x10
 903 };
 904
 905 // Flags found in the DT_FLAGS_1 dynamic element.
 906
 907 enum DF_1
 908 {
 909   DF_1_NOW = 0x1,
 910   DF_1_GLOBAL = 0x2,
 911   DF_1_GROUP = 0x4,
 912   DF_1_NODELETE = 0x8,
 913   DF_1_LOADFLTR = 0x10,
 914   DF_1_INITFIRST = 0x20,
 915   DF_1_NOOPEN = 0x40,
 916   DF_1_ORIGIN = 0x80,
 917   DF_1_DIRECT = 0x100,
 918   DF_1_TRANS = 0x200,
 919   DF_1_INTERPOSE = 0x400,
 920   DF_1_NODEFLIB = 0x800,
 921   DF_1_NODUMP = 0x1000,
 922   DF_1_CONLFAT = 0x2000,
 923   DF_1_PIE = 0x08000000
 924 };
 925
 926 // Flags found in the DT_GNU_FLAGS_1 dynamic element.
 927 enum DF_GNU_1
 928 {
 929   DF_GNU_1_UNIQUE = 0x1,
 930 };
 931
 932 // Version numbers which appear in the vd_version field of a Verdef
 933 // structure.
 934
 935 const int VER_DEF_NONE = 0;
 936 const int VER_DEF_CURRENT = 1;
 937
 938 // Version numbers which appear in the vn_version field of a Verneed
 939 // structure.
 940
 941 const int VER_NEED_NONE = 0;
 942 const int VER_NEED_CURRENT = 1;
 943
 944 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 945 // Vernaux.
 946
 947 const int VER_FLG_BASE = 0x1;
 948 const int VER_FLG_WEAK = 0x2;
 949 const int VER_FLG_INFO = 0x4;
 950
 951 // Special constants found in the SHT_GNU_versym entries.
 952
 953 const int VER_NDX_LOCAL = 0;
 954 const int VER_NDX_GLOBAL = 1;
 955
 956 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 957 // the symbol is hidden and can only be seen when referenced using an
 958 // explicit version number.  This is a GNU extension.
 959
 960 const int VERSYM_HIDDEN = 0x8000;
 961
 962 // This is the mask for the rest of the data in a word read from a
 963 // SHT_GNU_versym section.
 964
 965 const int VERSYM_VERSION = 0x7fff;
 966
 967 // Note descriptor type codes for notes in a non-core file with an
 968 // empty name.
 969
 970 enum
 971 {
 972   // A version string.
 973   NT_VERSION = 1,
 974   // An architecture string.
 975   NT_ARCH = 2
 976 };
 977
 978 // Note descriptor type codes for notes in a non-core file with the
 979 // name "GNU".
 980
 981 enum
 982 {
 983   // The minimum ABI level.  This is used by the dynamic linker to
 984   // describe the minimal kernel version on which a shared library may
 985   // be used.  Th value should be four words.  Word 0 is an OS
 986   // descriptor (see below).  Word 1 is the major version of the ABI.
 987   // Word 2 is the minor version.  Word 3 is the subminor version.
 988   NT_GNU_ABI_TAG = 1,
 989   // Hardware capabilities information.  Word 0 is the number of
 990   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 991   // the descriptor is a series of entries, where each entry is a
 992   // single byte followed by a nul terminated string.  The byte gives
 993   // the bit number to test if enabled in the bitmask.
 994   NT_GNU_HWCAP = 2,
 995   // The build ID as set by the linker's --build-id option.  The
 996   // format of the descriptor depends on the build ID style.
 997   NT_GNU_BUILD_ID = 3,
 998   // The version of gold used to link.  Th descriptor is just a
 999   // string.
1000   NT_GNU_GOLD_VERSION = 4,
1001   // Program property note, as described in "Linux Extensions to the gABI".
1002   NT_GNU_PROPERTY_TYPE_0 = 5
1003 };
1004
1005 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
1006
1007 enum
1008 {
1009   ELF_NOTE_OS_LINUX = 0,
1010   ELF_NOTE_OS_GNU = 1,
1011   ELF_NOTE_OS_SOLARIS2 = 2,
1012   ELF_NOTE_OS_FREEBSD = 3,
1013   ELF_NOTE_OS_NETBSD = 4,
1014   ELF_NOTE_OS_SYLLABLE = 5
1015 };
1016
1017 // Program property types for NT_GNU_PROPERTY_TYPE_0.
1018
1019 enum
1020 {
1021   GNU_PROPERTY_STACK_SIZE = 1,
1022   GNU_PROPERTY_NO_COPY_ON_PROTECTED = 2,
1023   GNU_PROPERTY_LOPROC = 0xc0000000,
1024   GNU_PROPERTY_X86_COMPAT_ISA_1_USED = 0xc0000000,
1025   GNU_PROPERTY_X86_COMPAT_ISA_1_NEEDED = 0xc0000001,
1026   GNU_PROPERTY_X86_UINT32_AND_LO = 0xc0000002,
1027   GNU_PROPERTY_X86_UINT32_AND_HI = 0xc0007fff,
1028   GNU_PROPERTY_X86_UINT32_OR_LO = 0xc0008000,
1029   GNU_PROPERTY_X86_UINT32_OR_HI = 0xc000ffff,
1030   GNU_PROPERTY_X86_UINT32_OR_AND_LO = 0xc0010000,
1031   GNU_PROPERTY_X86_UINT32_OR_AND_HI = 0xc0017fff,
1032   GNU_PROPERTY_X86_COMPAT_2_ISA_1_NEEDED = GNU_PROPERTY_X86_UINT32_OR_LO + 0,
1033   GNU_PROPERTY_X86_COMPAT_2_ISA_1_USED = GNU_PROPERTY_X86_UINT32_OR_AND_LO + 0,
1034   GNU_PROPERTY_X86_FEATURE_1_AND = GNU_PROPERTY_X86_UINT32_AND_LO + 0,
1035   GNU_PROPERTY_X86_ISA_1_NEEDED = GNU_PROPERTY_X86_UINT32_OR_LO + 2,
1036   GNU_PROPERTY_X86_FEATURE_2_NEEDED = GNU_PROPERTY_X86_UINT32_OR_LO + 1,
1037   GNU_PROPERTY_X86_ISA_1_USED = GNU_PROPERTY_X86_UINT32_OR_AND_LO + 2,
1038   GNU_PROPERTY_X86_FEATURE_2_USED = GNU_PROPERTY_X86_UINT32_OR_AND_LO + 1,
1039   GNU_PROPERTY_HIPROC = 0xdfffffff,
1040   GNU_PROPERTY_LOUSER = 0xe0000000,
1041   GNU_PROPERTY_HIUSER = 0xffffffff
1042 };
1043
1044 } // End namespace elfcpp.
1045
1046 // Include internal details after defining the types.
1047 #include "elfcpp_internal.h"
1048
1049 namespace elfcpp
1050 {
1051
1052 // The offset of the ELF file header in the ELF file.
1053
1054 const int file_header_offset = 0;
1055
1056 // ELF structure sizes.
1057
1058 template<int size>
1059 struct Elf_sizes
1060 {
1061   // Size of ELF file header.
1062   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
1063   // Size of ELF segment header.
1064   static const int phdr_size = sizeof(internal::Phdr_data<size>);
1065   // Size of ELF section header.
1066   static const int shdr_size = sizeof(internal::Shdr_data<size>);
1067   // Size of ELF compression header.
1068   static const int chdr_size = sizeof(internal::Chdr_data<size>);
1069   // Size of ELF symbol table entry.
1070   static const int sym_size = sizeof(internal::Sym_data<size>);
1071   // Sizes of ELF reloc entries.
1072   static const int rel_size = sizeof(internal::Rel_data<size>);
1073   static const int rela_size = sizeof(internal::Rela_data<size>);
1074   // Size of ELF dynamic entry.
1075   static const int dyn_size = sizeof(internal::Dyn_data<size>);
1076   // Size of ELF version structures.
1077   static const int verdef_size = sizeof(internal::Verdef_data);
1078   static const int verdaux_size = sizeof(internal::Verdaux_data);
1079   static const int verneed_size = sizeof(internal::Verneed_data);
1080   static const int vernaux_size = sizeof(internal::Vernaux_data);
1081 };
1082
1083 // Accessor class for the ELF file header.
1084
1085 template<int size, bool big_endian>
1086 class Ehdr
1087 {
1088  public:
1089   Ehdr(const unsigned char* p)
1090     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
1091   { }
1092
1093   template<typename File>
1094   Ehdr(File* file, typename File::Location loc)
1095     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
1096            file->view(loc.file_offset, loc.data_size).data()))
1097   { }
1098
1099   const unsigned char*
1100   get_e_ident() const
1101   { return this->p_->e_ident; }
1102
1103   unsigned char
1104   get_ei_osabi() const
1105   { return this->p_->e_ident[EI_OSABI]; }
1106
1107   unsigned char
1108   get_ei_abiversion() const
1109   { return this->p_->e_ident[EI_ABIVERSION]; }
1110
1111   Elf_Half
1112   get_e_type() const
1113   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
1114
1115   Elf_Half
1116   get_e_machine() const
1117   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
1118
1119   Elf_Word
1120   get_e_version() const
1121   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
1122
1123   typename Elf_types<size>::Elf_Addr
1124   get_e_entry() const
1125   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
1126
1127   typename Elf_types<size>::Elf_Off
1128   get_e_phoff() const
1129   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
1130
1131   typename Elf_types<size>::Elf_Off
1132   get_e_shoff() const
1133   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
1134
1135   Elf_Word
1136   get_e_flags() const
1137   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
1138
1139   Elf_Half
1140   get_e_ehsize() const
1141   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
1142
1143   Elf_Half
1144   get_e_phentsize() const
1145   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
1146
1147   Elf_Half
1148   get_e_phnum() const
1149   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
1150
1151   Elf_Half
1152   get_e_shentsize() const
1153   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
1154
1155   Elf_Half
1156   get_e_shnum() const
1157   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
1158
1159   Elf_Half
1160   get_e_shstrndx() const
1161   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
1162
1163  private:
1164   const internal::Ehdr_data<size>* p_;
1165 };
1166
1167 // Write class for the ELF file header.
1168
1169 template<int size, bool big_endian>
1170 class Ehdr_write
1171 {
1172  public:
1173   Ehdr_write(unsigned char* p)
1174     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
1175   { }
1176
1177   void
1178   put_e_ident(const unsigned char v[EI_NIDENT]) const
1179   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
1180
1181   void
1182   put_e_type(Elf_Half v)
1183   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
1184
1185   void
1186   put_e_machine(Elf_Half v)
1187   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
1188
1189   void
1190   put_e_version(Elf_Word v)
1191   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
1192
1193   void
1194   put_e_entry(typename Elf_types<size>::Elf_Addr v)
1195   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
1196
1197   void
1198   put_e_phoff(typename Elf_types<size>::Elf_Off v)
1199   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
1200
1201   void
1202   put_e_shoff(typename Elf_types<size>::Elf_Off v)
1203   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
1204
1205   void
1206   put_e_flags(Elf_Word v)
1207   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
1208
1209   void
1210   put_e_ehsize(Elf_Half v)
1211   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
1212
1213   void
1214   put_e_phentsize(Elf_Half v)
1215   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
1216
1217   void
1218   put_e_phnum(Elf_Half v)
1219   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
1220
1221   void
1222   put_e_shentsize(Elf_Half v)
1223   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
1224
1225   void
1226   put_e_shnum(Elf_Half v)
1227   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
1228
1229   void
1230   put_e_shstrndx(Elf_Half v)
1231   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
1232
1233  private:
1234   internal::Ehdr_data<size>* p_;
1235 };
1236
1237 // Accessor class for an ELF section header.
1238
1239 template<int size, bool big_endian>
1240 class Shdr
1241 {
1242  public:
1243   Shdr(const unsigned char* p)
1244     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
1245   { }
1246
1247   template<typename File>
1248   Shdr(File* file, typename File::Location loc)
1249     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1250            file->view(loc.file_offset, loc.data_size).data()))
1251   { }
1252
1253   Elf_Word
1254   get_sh_name() const
1255   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1256
1257   Elf_Word
1258   get_sh_type() const
1259   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1260
1261   typename Elf_types<size>::Elf_WXword
1262   get_sh_flags() const
1263   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1264
1265   typename Elf_types<size>::Elf_Addr
1266   get_sh_addr() const
1267   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1268
1269   typename Elf_types<size>::Elf_Off
1270   get_sh_offset() const
1271   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1272
1273   typename Elf_types<size>::Elf_WXword
1274   get_sh_size() const
1275   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1276
1277   Elf_Word
1278   get_sh_link() const
1279   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1280
1281   Elf_Word
1282   get_sh_info() const
1283   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1284
1285   typename Elf_types<size>::Elf_WXword
1286   get_sh_addralign() const
1287   { return
1288       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1289
1290   typename Elf_types<size>::Elf_WXword
1291   get_sh_entsize() const
1292   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1293
1294  private:
1295   const internal::Shdr_data<size>* p_;
1296 };
1297
1298 // Write class for an ELF section header.
1299
1300 template<int size, bool big_endian>
1301 class Shdr_write
1302 {
1303  public:
1304   Shdr_write(unsigned char* p)
1305     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1306   { }
1307
1308   void
1309   put_sh_name(Elf_Word v)
1310   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1311
1312   void
1313   put_sh_type(Elf_Word v)
1314   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1315
1316   void
1317   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1318   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1319
1320   void
1321   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1322   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1323
1324   void
1325   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1326   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1327
1328   void
1329   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1330   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1331
1332   void
1333   put_sh_link(Elf_Word v)
1334   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1335
1336   void
1337   put_sh_info(Elf_Word v)
1338   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1339
1340   void
1341   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1342   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1343
1344   void
1345   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1346   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1347
1348  private:
1349   internal::Shdr_data<size>* p_;
1350 };
1351
1352 // Accessor class for an ELF compression header.
1353
1354 template<int size, bool big_endian>
1355 class Chdr
1356 {
1357  public:
1358   Chdr(const unsigned char* p)
1359     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(p))
1360   { }
1361
1362   template<typename File>
1363   Chdr(File* file, typename File::Location loc)
1364     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(
1365            file->view(loc.file_offset, loc.data_size).data()))
1366   { }
1367
1368   Elf_Word
1369   get_ch_type() const
1370   { return Convert<size, big_endian>::convert_host(this->p_->ch_type); }
1371
1372   typename Elf_types<size>::Elf_WXword
1373   get_ch_size() const
1374   { return Convert<size, big_endian>::convert_host(this->p_->ch_size); }
1375
1376   typename Elf_types<size>::Elf_WXword
1377   get_ch_addralign() const
1378   { return
1379       Convert<size, big_endian>::convert_host(this->p_->ch_addralign); }
1380
1381  private:
1382   const internal::Chdr_data<size>* p_;
1383 };
1384
1385 // Write class for an ELF compression header.
1386
1387 template<int size, bool big_endian>
1388 class Chdr_write
1389 {
1390  public:
1391   Chdr_write(unsigned char* p)
1392     : p_(reinterpret_cast<internal::Chdr_data<size>*>(p))
1393   { }
1394
1395   void
1396   put_ch_type(typename Elf_types<size>::Elf_WXword v)
1397   { this->p_->ch_type = Convert<size, big_endian>::convert_host(v); }
1398
1399   void
1400   put_ch_size(typename Elf_types<size>::Elf_WXword v)
1401   { this->p_->ch_size = Convert<size, big_endian>::convert_host(v); }
1402
1403   void
1404   put_ch_addralign(typename Elf_types<size>::Elf_WXword v)
1405   { this->p_->ch_addralign = Convert<size, big_endian>::convert_host(v); }
1406
1407   void
1408   put_ch_reserved(Elf_Word);
1409
1410  private:
1411   internal::Chdr_data<size>* p_;
1412 };
1413
1414 template<>
1415 inline void
1416 elfcpp::Chdr_write<64, true>::put_ch_reserved(Elf_Word v)
1417 {
1418   this->p_->ch_reserved = v;
1419 }
1420
1421 template<>
1422 inline void
1423 elfcpp::Chdr_write<64, false>::put_ch_reserved(Elf_Word v)
1424 {
1425   this->p_->ch_reserved = v;
1426 }
1427
1428 // Accessor class for an ELF segment header.
1429
1430 template<int size, bool big_endian>
1431 class Phdr
1432 {
1433  public:
1434   Phdr(const unsigned char* p)
1435     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1436   { }
1437
1438   template<typename File>
1439   Phdr(File* file, typename File::Location loc)
1440     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1441            file->view(loc.file_offset, loc.data_size).data()))
1442   { }
1443
1444   Elf_Word
1445   get_p_type() const
1446   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1447
1448   typename Elf_types<size>::Elf_Off
1449   get_p_offset() const
1450   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1451
1452   typename Elf_types<size>::Elf_Addr
1453   get_p_vaddr() const
1454   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1455
1456   typename Elf_types<size>::Elf_Addr
1457   get_p_paddr() const
1458   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1459
1460   typename Elf_types<size>::Elf_WXword
1461   get_p_filesz() const
1462   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1463
1464   typename Elf_types<size>::Elf_WXword
1465   get_p_memsz() const
1466   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1467
1468   Elf_Word
1469   get_p_flags() const
1470   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1471
1472   typename Elf_types<size>::Elf_WXword
1473   get_p_align() const
1474   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1475
1476  private:
1477   const internal::Phdr_data<size>* p_;
1478 };
1479
1480 // Write class for an ELF segment header.
1481
1482 template<int size, bool big_endian>
1483 class Phdr_write
1484 {
1485  public:
1486   Phdr_write(unsigned char* p)
1487     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1488   { }
1489
1490   void
1491   put_p_type(Elf_Word v)
1492   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1493
1494   void
1495   put_p_offset(typename Elf_types<size>::Elf_Off v)
1496   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1497
1498   void
1499   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1500   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1501
1502   void
1503   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1504   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1505
1506   void
1507   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1508   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1509
1510   void
1511   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1512   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1513
1514   void
1515   put_p_flags(Elf_Word v)
1516   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1517
1518   void
1519   put_p_align(typename Elf_types<size>::Elf_WXword v)
1520   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1521
1522  private:
1523   internal::Phdr_data<size>* p_;
1524 };
1525
1526 // Accessor class for an ELF symbol table entry.
1527
1528 template<int size, bool big_endian>
1529 class Sym
1530 {
1531  public:
1532   Sym(const unsigned char* p)
1533     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1534   { }
1535
1536   template<typename File>
1537   Sym(File* file, typename File::Location loc)
1538     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1539            file->view(loc.file_offset, loc.data_size).data()))
1540   { }
1541
1542   Elf_Word
1543   get_st_name() const
1544   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1545
1546   typename Elf_types<size>::Elf_Addr
1547   get_st_value() const
1548   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1549
1550   typename Elf_types<size>::Elf_WXword
1551   get_st_size() const
1552   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1553
1554   unsigned char
1555   get_st_info() const
1556   { return this->p_->st_info; }
1557
1558   STB
1559   get_st_bind() const
1560   { return elf_st_bind(this->get_st_info()); }
1561
1562   STT
1563   get_st_type() const
1564   { return elf_st_type(this->get_st_info()); }
1565
1566   unsigned char
1567   get_st_other() const
1568   { return this->p_->st_other; }
1569
1570   STV
1571   get_st_visibility() const
1572   { return elf_st_visibility(this->get_st_other()); }
1573
1574   unsigned char
1575   get_st_nonvis() const
1576   { return elf_st_nonvis(this->get_st_other()); }
1577
1578   Elf_Half
1579   get_st_shndx() const
1580   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1581
1582  private:
1583   const internal::Sym_data<size>* p_;
1584 };
1585
1586 // Writer class for an ELF symbol table entry.
1587
1588 template<int size, bool big_endian>
1589 class Sym_write
1590 {
1591  public:
1592   Sym_write(unsigned char* p)
1593     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1594   { }
1595
1596   void
1597   put_st_name(Elf_Word v)
1598   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1599
1600   void
1601   put_st_value(typename Elf_types<size>::Elf_Addr v)
1602   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1603
1604   void
1605   put_st_size(typename Elf_types<size>::Elf_WXword v)
1606   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1607
1608   void
1609   put_st_info(unsigned char v)
1610   { this->p_->st_info = v; }
1611
1612   void
1613   put_st_info(STB bind, STT type)
1614   { this->p_->st_info = elf_st_info(bind, type); }
1615
1616   void
1617   put_st_other(unsigned char v)
1618   { this->p_->st_other = v; }
1619
1620   void
1621   put_st_other(STV vis, unsigned char nonvis)
1622   { this->p_->st_other = elf_st_other(vis, nonvis); }
1623
1624   void
1625   put_st_shndx(Elf_Half v)
1626   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1627
1628   Sym<size, big_endian>
1629   sym()
1630   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1631
1632  private:
1633   internal::Sym_data<size>* p_;
1634 };
1635
1636 // Accessor classes for an ELF REL relocation entry.
1637
1638 template<int size, bool big_endian>
1639 class Rel
1640 {
1641  public:
1642   Rel(const unsigned char* p)
1643     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1644   { }
1645
1646   template<typename File>
1647   Rel(File* file, typename File::Location loc)
1648     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1649            file->view(loc.file_offset, loc.data_size).data()))
1650   { }
1651
1652   typename Elf_types<size>::Elf_Addr
1653   get_r_offset() const
1654   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1655
1656   typename Elf_types<size>::Elf_WXword
1657   get_r_info() const
1658   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1659
1660  private:
1661   const internal::Rel_data<size>* p_;
1662 };
1663
1664 // Writer class for an ELF Rel relocation.
1665
1666 template<int size, bool big_endian>
1667 class Rel_write
1668 {
1669  public:
1670   Rel_write(unsigned char* p)
1671     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1672   { }
1673
1674   void
1675   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1676   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1677
1678   void
1679   put_r_info(typename Elf_types<size>::Elf_WXword v)
1680   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1681
1682  private:
1683   internal::Rel_data<size>* p_;
1684 };
1685
1686 // Accessor class for an ELF Rela relocation.
1687
1688 template<int size, bool big_endian>
1689 class Rela
1690 {
1691  public:
1692   Rela(const unsigned char* p)
1693     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1694   { }
1695
1696   template<typename File>
1697   Rela(File* file, typename File::Location loc)
1698     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1699            file->view(loc.file_offset, loc.data_size).data()))
1700   { }
1701
1702   typename Elf_types<size>::Elf_Addr
1703   get_r_offset() const
1704   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1705
1706   typename Elf_types<size>::Elf_WXword
1707   get_r_info() const
1708   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1709
1710   typename Elf_types<size>::Elf_Swxword
1711   get_r_addend() const
1712   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1713
1714  private:
1715   const internal::Rela_data<size>* p_;
1716 };
1717
1718 // Writer class for an ELF Rela relocation.
1719
1720 template<int size, bool big_endian>
1721 class Rela_write
1722 {
1723  public:
1724   Rela_write(unsigned char* p)
1725     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1726   { }
1727
1728   void
1729   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1730   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1731
1732   void
1733   put_r_info(typename Elf_types<size>::Elf_WXword v)
1734   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1735
1736   void
1737   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1738   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1739
1740  private:
1741   internal::Rela_data<size>* p_;
1742 };
1743
1744 // MIPS-64 has a non-standard relocation layout.
1745
1746 template<bool big_endian>
1747 class Mips64_rel
1748 {
1749  public:
1750   Mips64_rel(const unsigned char* p)
1751     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(p))
1752   { }
1753
1754   template<typename File>
1755   Mips64_rel(File* file, typename File::Location loc)
1756     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(
1757            file->view(loc.file_offset, loc.data_size).data()))
1758   { }
1759
1760   typename Elf_types<64>::Elf_Addr
1761   get_r_offset() const
1762   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1763
1764   Elf_Word
1765   get_r_sym() const
1766   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1767
1768   unsigned char
1769   get_r_ssym() const
1770   { return this->p_->r_ssym; }
1771
1772   unsigned char
1773   get_r_type() const
1774   { return this->p_->r_type; }
1775
1776   unsigned char
1777   get_r_type2() const
1778   { return this->p_->r_type2; }
1779
1780   unsigned char
1781   get_r_type3() const
1782   { return this->p_->r_type3; }
1783
1784  private:
1785   const internal::Mips64_rel_data* p_;
1786 };
1787
1788 template<bool big_endian>
1789 class Mips64_rel_write
1790 {
1791  public:
1792   Mips64_rel_write(unsigned char* p)
1793     : p_(reinterpret_cast<internal::Mips64_rel_data*>(p))
1794   { }
1795
1796   void
1797   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1798   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1799
1800   void
1801   put_r_sym(Elf_Word v)
1802   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1803
1804   void
1805   put_r_ssym(unsigned char v)
1806   { this->p_->r_ssym = v; }
1807
1808   void
1809   put_r_type(unsigned char v)
1810   { this->p_->r_type = v; }
1811
1812   void
1813   put_r_type2(unsigned char v)
1814   { this->p_->r_type2 = v; }
1815
1816   void
1817   put_r_type3(unsigned char v)
1818   { this->p_->r_type3 = v; }
1819
1820  private:
1821   internal::Mips64_rel_data* p_;
1822 };
1823
1824 template<bool big_endian>
1825 class Mips64_rela
1826 {
1827  public:
1828   Mips64_rela(const unsigned char* p)
1829     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(p))
1830   { }
1831
1832   template<typename File>
1833   Mips64_rela(File* file, typename File::Location loc)
1834     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(
1835            file->view(loc.file_offset, loc.data_size).data()))
1836   { }
1837
1838   typename Elf_types<64>::Elf_Addr
1839   get_r_offset() const
1840   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1841
1842   Elf_Word
1843   get_r_sym() const
1844   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1845
1846   unsigned char
1847   get_r_ssym() const
1848   { return this->p_->r_ssym; }
1849
1850   unsigned char
1851   get_r_type() const
1852   { return this->p_->r_type; }
1853
1854   unsigned char
1855   get_r_type2() const
1856   { return this->p_->r_type2; }
1857
1858   unsigned char
1859   get_r_type3() const
1860   { return this->p_->r_type3; }
1861
1862   typename Elf_types<64>::Elf_Swxword
1863   get_r_addend() const
1864   { return Convert<64, big_endian>::convert_host(this->p_->r_addend); }
1865
1866  private:
1867   const internal::Mips64_rela_data* p_;
1868 };
1869
1870 template<bool big_endian>
1871 class Mips64_rela_write
1872 {
1873  public:
1874   Mips64_rela_write(unsigned char* p)
1875     : p_(reinterpret_cast<internal::Mips64_rela_data*>(p))
1876   { }
1877
1878   void
1879   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1880   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1881
1882   void
1883   put_r_sym(Elf_Word v)
1884   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1885
1886   void
1887   put_r_ssym(unsigned char v)
1888   { this->p_->r_ssym = v; }
1889
1890   void
1891   put_r_type(unsigned char v)
1892   { this->p_->r_type = v; }
1893
1894   void
1895   put_r_type2(unsigned char v)
1896   { this->p_->r_type2 = v; }
1897
1898   void
1899   put_r_type3(unsigned char v)
1900   { this->p_->r_type3 = v; }
1901
1902   void
1903   put_r_addend(typename Elf_types<64>::Elf_Swxword v)
1904   { this->p_->r_addend = Convert<64, big_endian>::convert_host(v); }
1905
1906  private:
1907   internal::Mips64_rela_data* p_;
1908 };
1909
1910 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1911 // PT_DYNAMIC segment.
1912
1913 template<int size, bool big_endian>
1914 class Dyn
1915 {
1916  public:
1917   Dyn(const unsigned char* p)
1918     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1919   { }
1920
1921   template<typename File>
1922   Dyn(File* file, typename File::Location loc)
1923     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1924            file->view(loc.file_offset, loc.data_size).data()))
1925   { }
1926
1927   typename Elf_types<size>::Elf_Swxword
1928   get_d_tag() const
1929   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1930
1931   typename Elf_types<size>::Elf_WXword
1932   get_d_val() const
1933   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1934
1935   typename Elf_types<size>::Elf_Addr
1936   get_d_ptr() const
1937   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1938
1939  private:
1940   const internal::Dyn_data<size>* p_;
1941 };
1942
1943 // Write class for an entry in the SHT_DYNAMIC section.
1944
1945 template<int size, bool big_endian>
1946 class Dyn_write
1947 {
1948  public:
1949   Dyn_write(unsigned char* p)
1950     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1951   { }
1952
1953   void
1954   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1955   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1956
1957   void
1958   put_d_val(typename Elf_types<size>::Elf_WXword v)
1959   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1960
1961   void
1962   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1963   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1964
1965  private:
1966   internal::Dyn_data<size>* p_;
1967 };
1968
1969 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1970
1971 template<int size, bool big_endian>
1972 class Verdef
1973 {
1974  public:
1975   Verdef(const unsigned char* p)
1976     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1977   { }
1978
1979   template<typename File>
1980   Verdef(File* file, typename File::Location loc)
1981     : p_(reinterpret_cast<const internal::Verdef_data*>(
1982            file->view(loc.file_offset, loc.data_size).data()))
1983   { }
1984
1985   Elf_Half
1986   get_vd_version() const
1987   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1988
1989   Elf_Half
1990   get_vd_flags() const
1991   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1992
1993   Elf_Half
1994   get_vd_ndx() const
1995   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1996
1997   Elf_Half
1998   get_vd_cnt() const
1999   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
2000
2001   Elf_Word
2002   get_vd_hash() const
2003   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
2004
2005   Elf_Word
2006   get_vd_aux() const
2007   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
2008
2009   Elf_Word
2010   get_vd_next() const
2011   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
2012
2013  private:
2014   const internal::Verdef_data* p_;
2015 };
2016
2017 template<int size, bool big_endian>
2018 class Verdef_write
2019 {
2020  public:
2021   Verdef_write(unsigned char* p)
2022     : p_(reinterpret_cast<internal::Verdef_data*>(p))
2023   { }
2024
2025   void
2026   set_vd_version(Elf_Half v)
2027   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
2028
2029   void
2030   set_vd_flags(Elf_Half v)
2031   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
2032
2033   void
2034   set_vd_ndx(Elf_Half v)
2035   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
2036
2037   void
2038   set_vd_cnt(Elf_Half v)
2039   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
2040
2041   void
2042   set_vd_hash(Elf_Word v)
2043   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
2044
2045   void
2046   set_vd_aux(Elf_Word v)
2047   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
2048
2049   void
2050   set_vd_next(Elf_Word v)
2051   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
2052
2053  private:
2054   internal::Verdef_data* p_;
2055 };
2056
2057 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
2058 // section.
2059
2060 template<int size, bool big_endian>
2061 class Verdaux
2062 {
2063  public:
2064   Verdaux(const unsigned char* p)
2065     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
2066   { }
2067
2068   template<typename File>
2069   Verdaux(File* file, typename File::Location loc)
2070     : p_(reinterpret_cast<const internal::Verdaux_data*>(
2071            file->view(loc.file_offset, loc.data_size).data()))
2072   { }
2073
2074   Elf_Word
2075   get_vda_name() const
2076   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
2077
2078   Elf_Word
2079   get_vda_next() const
2080   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
2081
2082  private:
2083   const internal::Verdaux_data* p_;
2084 };
2085
2086 template<int size, bool big_endian>
2087 class Verdaux_write
2088 {
2089  public:
2090   Verdaux_write(unsigned char* p)
2091     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
2092   { }
2093
2094   void
2095   set_vda_name(Elf_Word v)
2096   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
2097
2098   void
2099   set_vda_next(Elf_Word v)
2100   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
2101
2102  private:
2103   internal::Verdaux_data* p_;
2104 };
2105
2106 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
2107
2108 template<int size, bool big_endian>
2109 class Verneed
2110 {
2111  public:
2112   Verneed(const unsigned char* p)
2113     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
2114   { }
2115
2116   template<typename File>
2117   Verneed(File* file, typename File::Location loc)
2118     : p_(reinterpret_cast<const internal::Verneed_data*>(
2119            file->view(loc.file_offset, loc.data_size).data()))
2120   { }
2121
2122   Elf_Half
2123   get_vn_version() const
2124   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
2125
2126   Elf_Half
2127   get_vn_cnt() const
2128   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
2129
2130   Elf_Word
2131   get_vn_file() const
2132   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
2133
2134   Elf_Word
2135   get_vn_aux() const
2136   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
2137
2138   Elf_Word
2139   get_vn_next() const
2140   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
2141
2142  private:
2143   const internal::Verneed_data* p_;
2144 };
2145
2146 template<int size, bool big_endian>
2147 class Verneed_write
2148 {
2149  public:
2150   Verneed_write(unsigned char* p)
2151     : p_(reinterpret_cast<internal::Verneed_data*>(p))
2152   { }
2153
2154   void
2155   set_vn_version(Elf_Half v)
2156   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
2157
2158   void
2159   set_vn_cnt(Elf_Half v)
2160   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
2161
2162   void
2163   set_vn_file(Elf_Word v)
2164   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
2165
2166   void
2167   set_vn_aux(Elf_Word v)
2168   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
2169
2170   void
2171   set_vn_next(Elf_Word v)
2172   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
2173
2174  private:
2175   internal::Verneed_data* p_;
2176 };
2177
2178 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
2179 // section.
2180
2181 template<int size, bool big_endian>
2182 class Vernaux
2183 {
2184  public:
2185   Vernaux(const unsigned char* p)
2186     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
2187   { }
2188
2189   template<typename File>
2190   Vernaux(File* file, typename File::Location loc)
2191     : p_(reinterpret_cast<const internal::Vernaux_data*>(
2192            file->view(loc.file_offset, loc.data_size).data()))
2193   { }
2194
2195   Elf_Word
2196   get_vna_hash() const
2197   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
2198
2199   Elf_Half
2200   get_vna_flags() const
2201   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
2202
2203   Elf_Half
2204   get_vna_other() const
2205   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
2206
2207   Elf_Word
2208   get_vna_name() const
2209   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
2210
2211   Elf_Word
2212   get_vna_next() const
2213   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
2214
2215  private:
2216   const internal::Vernaux_data* p_;
2217 };
2218
2219 template<int size, bool big_endian>
2220 class Vernaux_write
2221 {
2222  public:
2223   Vernaux_write(unsigned char* p)
2224     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
2225   { }
2226
2227   void
2228   set_vna_hash(Elf_Word v)
2229   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
2230
2231   void
2232   set_vna_flags(Elf_Half v)
2233   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
2234
2235   void
2236   set_vna_other(Elf_Half v)
2237   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
2238
2239   void
2240   set_vna_name(Elf_Word v)
2241   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
2242
2243   void
2244   set_vna_next(Elf_Word v)
2245   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
2246
2247  private:
2248   internal::Vernaux_data* p_;
2249 };
2250
2251 } // End namespace elfcpp.
2252
2253 #endif // !defined(ELFPCP_H)