elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright (C) 2006-2023 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_ZSTD = 2,
 469   ELFCOMPRESS_LOOS = 0x60000000,
 470   ELFCOMPRESS_HIOS = 0x6fffffff,
 471   ELFCOMPRESS_LOPROC = 0x70000000,
 472   ELFCOMPRESS_HIPROC = 0x7fffffff,
 473 };
 474
 475 // Bit flags which appear in the first 32-bit word of the section data
 476 // of a SHT_GROUP section.
 477
 478 enum
 479 {
 480   GRP_COMDAT = 0x1,
 481   GRP_MASKOS = 0x0ff00000,
 482   GRP_MASKPROC = 0xf0000000
 483 };
 484
 485 // The valid values found in the Phdr p_type field.
 486
 487 enum PT
 488 {
 489   PT_NULL = 0,
 490   PT_LOAD = 1,
 491   PT_DYNAMIC = 2,
 492   PT_INTERP = 3,
 493   PT_NOTE = 4,
 494   PT_SHLIB = 5,
 495   PT_PHDR = 6,
 496   PT_TLS = 7,
 497   PT_LOOS = 0x60000000,
 498   PT_HIOS = 0x6fffffff,
 499   PT_LOPROC = 0x70000000,
 500   PT_HIPROC = 0x7fffffff,
 501   // The remaining values are not in the standard.
 502   // Frame unwind information.
 503   PT_GNU_EH_FRAME = 0x6474e550,
 504   PT_SUNW_EH_FRAME = 0x6474e550,
 505   // Stack flags.
 506   PT_GNU_STACK = 0x6474e551,
 507   // Read only after relocation.
 508   PT_GNU_RELRO = 0x6474e552,
 509   // Platform architecture compatibility information
 510   PT_ARM_ARCHEXT = 0x70000000,
 511   // Exception unwind tables
 512   PT_ARM_EXIDX = 0x70000001,
 513   // Register usage information.  Identifies one .reginfo section.
 514   PT_MIPS_REGINFO =0x70000000,
 515   // Runtime procedure table.
 516   PT_MIPS_RTPROC = 0x70000001,
 517   // .MIPS.options section.
 518   PT_MIPS_OPTIONS = 0x70000002,
 519   // .MIPS.abiflags section.
 520   PT_MIPS_ABIFLAGS = 0x70000003,
 521   // Platform architecture compatibility information
 522   PT_AARCH64_ARCHEXT = 0x70000000,
 523   // Exception unwind tables
 524   PT_AARCH64_UNWIND = 0x70000001,
 525   // 4k page table size
 526   PT_S390_PGSTE = 0x70000000,
 527 };
 528
 529 // The valid bit flags found in the Phdr p_flags field.
 530
 531 enum PF
 532 {
 533   PF_X = 0x1,
 534   PF_W = 0x2,
 535   PF_R = 0x4,
 536   PF_MASKOS = 0x0ff00000,
 537   PF_MASKPROC = 0xf0000000
 538 };
 539
 540 // Symbol binding from Sym st_info field.
 541
 542 enum STB
 543 {
 544   STB_LOCAL = 0,
 545   STB_GLOBAL = 1,
 546   STB_WEAK = 2,
 547   STB_LOOS = 10,
 548   STB_GNU_UNIQUE = 10,
 549   STB_HIOS = 12,
 550   STB_LOPROC = 13,
 551   STB_HIPROC = 15
 552 };
 553
 554 // Symbol types from Sym st_info field.
 555
 556 enum STT
 557 {
 558   STT_NOTYPE = 0,
 559   STT_OBJECT = 1,
 560   STT_FUNC = 2,
 561   STT_SECTION = 3,
 562   STT_FILE = 4,
 563   STT_COMMON = 5,
 564   STT_TLS = 6,
 565
 566   // GNU extension: symbol value points to a function which is called
 567   // at runtime to determine the final value of the symbol.
 568   STT_GNU_IFUNC = 10,
 569
 570   STT_LOOS = 10,
 571   STT_HIOS = 12,
 572   STT_LOPROC = 13,
 573   STT_HIPROC = 15,
 574
 575   // The section type that must be used for register symbols on
 576   // Sparc.  These symbols initialize a global register.
 577   STT_SPARC_REGISTER = 13,
 578
 579   // ARM: a THUMB function.  This is not defined in ARM ELF Specification but
 580   // used by the GNU tool-chain.
 581   STT_ARM_TFUNC = 13
 582 };
 583
 584 inline STB
 585 elf_st_bind(unsigned char info)
 586 {
 587   return static_cast<STB>(info >> 4);
 588 }
 589
 590 inline STT
 591 elf_st_type(unsigned char info)
 592 {
 593   return static_cast<STT>(info & 0xf);
 594 }
 595
 596 inline unsigned char
 597 elf_st_info(STB bind, STT type)
 598 {
 599   return ((static_cast<unsigned char>(bind) << 4)
 600           + (static_cast<unsigned char>(type) & 0xf));
 601 }
 602
 603 // Symbol visibility from Sym st_other field.
 604
 605 enum STV
 606 {
 607   STV_DEFAULT = 0,
 608   STV_INTERNAL = 1,
 609   STV_HIDDEN = 2,
 610   STV_PROTECTED = 3
 611 };
 612
 613 inline STV
 614 elf_st_visibility(unsigned char other)
 615 {
 616   return static_cast<STV>(other & 0x3);
 617 }
 618
 619 inline unsigned char
 620 elf_st_nonvis(unsigned char other)
 621 {
 622   return static_cast<STV>(other >> 2);
 623 }
 624
 625 inline unsigned char
 626 elf_st_other(STV vis, unsigned char nonvis)
 627 {
 628   return ((nonvis << 2)
 629           + (static_cast<unsigned char>(vis) & 3));
 630 }
 631
 632 // Reloc information from Rel/Rela r_info field.
 633
 634 template<int size>
 635 unsigned int
 636 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 637
 638 template<>
 639 inline unsigned int
 640 elf_r_sym<32>(Elf_Word v)
 641 {
 642   return v >> 8;
 643 }
 644
 645 template<>
 646 inline unsigned int
 647 elf_r_sym<64>(Elf_Xword v)
 648 {
 649   return v >> 32;
 650 }
 651
 652 template<int size>
 653 unsigned int
 654 elf_r_type(typename Elf_types<size>::Elf_WXword);
 655
 656 template<>
 657 inline unsigned int
 658 elf_r_type<32>(Elf_Word v)
 659 {
 660   return v & 0xff;
 661 }
 662
 663 template<>
 664 inline unsigned int
 665 elf_r_type<64>(Elf_Xword v)
 666 {
 667   return v & 0xffffffff;
 668 }
 669
 670 template<int size>
 671 typename Elf_types<size>::Elf_WXword
 672 elf_r_info(unsigned int s, unsigned int t);
 673
 674 template<>
 675 inline Elf_Word
 676 elf_r_info<32>(unsigned int s, unsigned int t)
 677 {
 678   return (s << 8) + (t & 0xff);
 679 }
 680
 681 template<>
 682 inline Elf_Xword
 683 elf_r_info<64>(unsigned int s, unsigned int t)
 684 {
 685   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 686 }
 687
 688 // Dynamic tags found in the PT_DYNAMIC segment.
 689
 690 enum DT
 691 {
 692   DT_NULL = 0,
 693   DT_NEEDED = 1,
 694   DT_PLTRELSZ = 2,
 695   DT_PLTGOT = 3,
 696   DT_HASH = 4,
 697   DT_STRTAB = 5,
 698   DT_SYMTAB = 6,
 699   DT_RELA = 7,
 700   DT_RELASZ = 8,
 701   DT_RELAENT = 9,
 702   DT_STRSZ = 10,
 703   DT_SYMENT = 11,
 704   DT_INIT = 12,
 705   DT_FINI = 13,
 706   DT_SONAME = 14,
 707   DT_RPATH = 15,
 708   DT_SYMBOLIC = 16,
 709   DT_REL = 17,
 710   DT_RELSZ = 18,
 711   DT_RELENT = 19,
 712   DT_PLTREL = 20,
 713   DT_DEBUG = 21,
 714   DT_TEXTREL = 22,
 715   DT_JMPREL = 23,
 716   DT_BIND_NOW = 24,
 717   DT_INIT_ARRAY = 25,
 718   DT_FINI_ARRAY = 26,
 719   DT_INIT_ARRAYSZ = 27,
 720   DT_FINI_ARRAYSZ = 28,
 721   DT_RUNPATH = 29,
 722   DT_FLAGS = 30,
 723
 724   // This is used to mark a range of dynamic tags.  It is not really
 725   // a tag value.
 726   DT_ENCODING = 32,
 727
 728   DT_PREINIT_ARRAY = 32,
 729   DT_PREINIT_ARRAYSZ = 33,
 730   DT_LOOS = 0x6000000d,
 731   DT_HIOS = 0x6ffff000,
 732   DT_LOPROC = 0x70000000,
 733   DT_HIPROC = 0x7fffffff,
 734
 735   // The remaining values are extensions used by GNU or Solaris.
 736   DT_VALRNGLO = 0x6ffffd00,
 737   DT_GNU_FLAGS_1 = 0x6ffffdf4,
 738   DT_GNU_PRELINKED = 0x6ffffdf5,
 739   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 740   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 741   DT_CHECKSUM = 0x6ffffdf8,
 742   DT_PLTPADSZ = 0x6ffffdf9,
 743   DT_MOVEENT = 0x6ffffdfa,
 744   DT_MOVESZ = 0x6ffffdfb,
 745   DT_FEATURE = 0x6ffffdfc,
 746   DT_POSFLAG_1 = 0x6ffffdfd,
 747   DT_SYMINSZ = 0x6ffffdfe,
 748   DT_SYMINENT = 0x6ffffdff,
 749   DT_VALRNGHI = 0x6ffffdff,
 750
 751   DT_ADDRRNGLO = 0x6ffffe00,
 752   DT_GNU_HASH = 0x6ffffef5,
 753   DT_TLSDESC_PLT = 0x6ffffef6,
 754   DT_TLSDESC_GOT = 0x6ffffef7,
 755   DT_GNU_CONFLICT = 0x6ffffef8,
 756   DT_GNU_LIBLIST = 0x6ffffef9,
 757   DT_CONFIG = 0x6ffffefa,
 758   DT_DEPAUDIT = 0x6ffffefb,
 759   DT_AUDIT = 0x6ffffefc,
 760   DT_PLTPAD = 0x6ffffefd,
 761   DT_MOVETAB = 0x6ffffefe,
 762   DT_SYMINFO = 0x6ffffeff,
 763   DT_ADDRRNGHI = 0x6ffffeff,
 764
 765   DT_RELACOUNT = 0x6ffffff9,
 766   DT_RELCOUNT = 0x6ffffffa,
 767   DT_FLAGS_1 = 0x6ffffffb,
 768   DT_VERDEF = 0x6ffffffc,
 769   DT_VERDEFNUM = 0x6ffffffd,
 770   DT_VERNEED = 0x6ffffffe,
 771   DT_VERNEEDNUM = 0x6fffffff,
 772
 773   DT_VERSYM = 0x6ffffff0,
 774
 775   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 776   DT_PPC_GOT = 0x70000000,
 777
 778   // Specify whether various optimisations are possible.
 779   DT_PPC_OPT = 0x70000001,
 780
 781   // Specify the start of the .glink section.
 782   DT_PPC64_GLINK = 0x70000000,
 783
 784   // Specify the start and size of the .opd section.
 785   DT_PPC64_OPD = 0x70000001,
 786   DT_PPC64_OPDSZ = 0x70000002,
 787
 788   // Specify whether various optimisations are possible.
 789   DT_PPC64_OPT = 0x70000003,
 790
 791   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 792   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 793   // symbol in the symbol table.
 794   DT_SPARC_REGISTER = 0x70000001,
 795
 796   // MIPS specific dynamic array tags.
 797   // 32 bit version number for runtime linker interface.
 798   DT_MIPS_RLD_VERSION = 0x70000001,
 799   // Time stamp.
 800   DT_MIPS_TIME_STAMP = 0x70000002,
 801   // Checksum of external strings and common sizes.
 802   DT_MIPS_ICHECKSUM = 0x70000003,
 803   // Index of version string in string table.
 804   DT_MIPS_IVERSION = 0x70000004,
 805   // 32 bits of flags.
 806   DT_MIPS_FLAGS = 0x70000005,
 807   // Base address of the segment.
 808   DT_MIPS_BASE_ADDRESS = 0x70000006,
 809   // ???
 810   DT_MIPS_MSYM = 0x70000007,
 811   // Address of .conflict section.
 812   DT_MIPS_CONFLICT = 0x70000008,
 813   // Address of .liblist section.
 814   DT_MIPS_LIBLIST = 0x70000009,
 815   // Number of local global offset table entries.
 816   DT_MIPS_LOCAL_GOTNO = 0x7000000a,
 817   // Number of entries in the .conflict section.
 818   DT_MIPS_CONFLICTNO = 0x7000000b,
 819   // Number of entries in the .liblist section.
 820   DT_MIPS_LIBLISTNO = 0x70000010,
 821   // Number of entries in the .dynsym section.
 822   DT_MIPS_SYMTABNO = 0x70000011,
 823   // Index of first external dynamic symbol not referenced locally.
 824   DT_MIPS_UNREFEXTNO = 0x70000012,
 825   // Index of first dynamic symbol in global offset table.
 826   DT_MIPS_GOTSYM = 0x70000013,
 827   // Number of page table entries in global offset table.
 828   DT_MIPS_HIPAGENO = 0x70000014,
 829   // Address of run time loader map, used for debugging.
 830   DT_MIPS_RLD_MAP = 0x70000016,
 831   // Delta C++ class definition.
 832   DT_MIPS_DELTA_CLASS = 0x70000017,
 833   // Number of entries in DT_MIPS_DELTA_CLASS.
 834   DT_MIPS_DELTA_CLASS_NO = 0x70000018,
 835   // Delta C++ class instances.
 836   DT_MIPS_DELTA_INSTANCE = 0x70000019,
 837   // Number of entries in DT_MIPS_DELTA_INSTANCE.
 838   DT_MIPS_DELTA_INSTANCE_NO = 0x7000001a,
 839   // Delta relocations.
 840   DT_MIPS_DELTA_RELOC = 0x7000001b,
 841   // Number of entries in DT_MIPS_DELTA_RELOC.
 842   DT_MIPS_DELTA_RELOC_NO = 0x7000001c,
 843   // Delta symbols that Delta relocations refer to.
 844   DT_MIPS_DELTA_SYM = 0x7000001d,
 845   // Number of entries in DT_MIPS_DELTA_SYM.
 846   DT_MIPS_DELTA_SYM_NO = 0x7000001e,
 847   // Delta symbols that hold class declarations.
 848   DT_MIPS_DELTA_CLASSSYM = 0x70000020,
 849   // Number of entries in DT_MIPS_DELTA_CLASSSYM.
 850   DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021,
 851   // Flags indicating information about C++ flavor.
 852   DT_MIPS_CXX_FLAGS = 0x70000022,
 853   // Pixie information (???).
 854   DT_MIPS_PIXIE_INIT = 0x70000023,
 855   // Address of .MIPS.symlib
 856   DT_MIPS_SYMBOL_LIB = 0x70000024,
 857   // The GOT index of the first PTE for a segment
 858   DT_MIPS_LOCALPAGE_GOTIDX = 0x70000025,
 859   // The GOT index of the first PTE for a local symbol
 860   DT_MIPS_LOCAL_GOTIDX = 0x70000026,
 861   // The GOT index of the first PTE for a hidden symbol
 862   DT_MIPS_HIDDEN_GOTIDX = 0x70000027,
 863   // The GOT index of the first PTE for a protected symbol
 864   DT_MIPS_PROTECTED_GOTIDX = 0x70000028,
 865   // Address of `.MIPS.options'.
 866   DT_MIPS_OPTIONS = 0x70000029,
 867   // Address of `.interface'.
 868   DT_MIPS_INTERFACE = 0x7000002a,
 869   // ???
 870   DT_MIPS_DYNSTR_ALIGN = 0x7000002b,
 871   // Size of the .interface section.
 872   DT_MIPS_INTERFACE_SIZE = 0x7000002c,
 873   // Size of rld_text_resolve function stored in the GOT.
 874   DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002d,
 875   // Default suffix of DSO to be added by rld on dlopen() calls.
 876   DT_MIPS_PERF_SUFFIX = 0x7000002e,
 877   // Size of compact relocation section (O32).
 878   DT_MIPS_COMPACT_SIZE = 0x7000002f,
 879   // GP value for auxiliary GOTs.
 880   DT_MIPS_GP_VALUE = 0x70000030,
 881   // Address of auxiliary .dynamic.
 882   DT_MIPS_AUX_DYNAMIC = 0x70000031,
 883   // Address of the base of the PLTGOT.
 884   DT_MIPS_PLTGOT = 0x70000032,
 885   // Points to the base of a writable PLT.
 886   DT_MIPS_RWPLT = 0x70000034,
 887   // Relative offset of run time loader map, used for debugging.
 888   DT_MIPS_RLD_MAP_REL = 0x70000035,
 889
 890   DT_AUXILIARY = 0x7ffffffd,
 891   DT_USED = 0x7ffffffe,
 892   DT_FILTER = 0x7fffffff
 893 };
 894
 895 // Flags found in the DT_FLAGS dynamic element.
 896
 897 enum DF
 898 {
 899   DF_ORIGIN = 0x1,
 900   DF_SYMBOLIC = 0x2,
 901   DF_TEXTREL = 0x4,
 902   DF_BIND_NOW = 0x8,
 903   DF_STATIC_TLS = 0x10
 904 };
 905
 906 // Flags found in the DT_FLAGS_1 dynamic element.
 907
 908 enum DF_1
 909 {
 910   DF_1_NOW = 0x1,
 911   DF_1_GLOBAL = 0x2,
 912   DF_1_GROUP = 0x4,
 913   DF_1_NODELETE = 0x8,
 914   DF_1_LOADFLTR = 0x10,
 915   DF_1_INITFIRST = 0x20,
 916   DF_1_NOOPEN = 0x40,
 917   DF_1_ORIGIN = 0x80,
 918   DF_1_DIRECT = 0x100,
 919   DF_1_TRANS = 0x200,
 920   DF_1_INTERPOSE = 0x400,
 921   DF_1_NODEFLIB = 0x800,
 922   DF_1_NODUMP = 0x1000,
 923   DF_1_CONLFAT = 0x2000,
 924   DF_1_PIE = 0x08000000
 925 };
 926
 927 // Flags found in the DT_GNU_FLAGS_1 dynamic element.
 928 enum DF_GNU_1
 929 {
 930   DF_GNU_1_UNIQUE = 0x1,
 931 };
 932
 933 // Version numbers which appear in the vd_version field of a Verdef
 934 // structure.
 935
 936 const int VER_DEF_NONE = 0;
 937 const int VER_DEF_CURRENT = 1;
 938
 939 // Version numbers which appear in the vn_version field of a Verneed
 940 // structure.
 941
 942 const int VER_NEED_NONE = 0;
 943 const int VER_NEED_CURRENT = 1;
 944
 945 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 946 // Vernaux.
 947
 948 const int VER_FLG_BASE = 0x1;
 949 const int VER_FLG_WEAK = 0x2;
 950 const int VER_FLG_INFO = 0x4;
 951
 952 // Special constants found in the SHT_GNU_versym entries.
 953
 954 const int VER_NDX_LOCAL = 0;
 955 const int VER_NDX_GLOBAL = 1;
 956
 957 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 958 // the symbol is hidden and can only be seen when referenced using an
 959 // explicit version number.  This is a GNU extension.
 960
 961 const int VERSYM_HIDDEN = 0x8000;
 962
 963 // This is the mask for the rest of the data in a word read from a
 964 // SHT_GNU_versym section.
 965
 966 const int VERSYM_VERSION = 0x7fff;
 967
 968 // Note descriptor type codes for notes in a non-core file with an
 969 // empty name.
 970
 971 enum
 972 {
 973   // A version string.
 974   NT_VERSION = 1,
 975   // An architecture string.
 976   NT_ARCH = 2
 977 };
 978
 979 // Note descriptor type codes for notes in a non-core file with the
 980 // name "GNU".
 981
 982 enum
 983 {
 984   // The minimum ABI level.  This is used by the dynamic linker to
 985   // describe the minimal kernel version on which a shared library may
 986   // be used.  Th value should be four words.  Word 0 is an OS
 987   // descriptor (see below).  Word 1 is the major version of the ABI.
 988   // Word 2 is the minor version.  Word 3 is the subminor version.
 989   NT_GNU_ABI_TAG = 1,
 990   // Hardware capabilities information.  Word 0 is the number of
 991   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 992   // the descriptor is a series of entries, where each entry is a
 993   // single byte followed by a nul terminated string.  The byte gives
 994   // the bit number to test if enabled in the bitmask.
 995   NT_GNU_HWCAP = 2,
 996   // The build ID as set by the linker's --build-id option.  The
 997   // format of the descriptor depends on the build ID style.
 998   NT_GNU_BUILD_ID = 3,
 999   // The version of gold used to link.  Th descriptor is just a
1000   // string.
1001   NT_GNU_GOLD_VERSION = 4,
1002   // Program property note, as described in "Linux Extensions to the gABI".
1003   NT_GNU_PROPERTY_TYPE_0 = 5,
1004   // FDO .note.package notes as defined on https://systemd.io/ELF_PACKAGE_METADATA/
1005   FDO_PACKAGING_METADATA = 0xcafe1a7e
1006 };
1007
1008 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
1009
1010 enum
1011 {
1012   ELF_NOTE_OS_LINUX = 0,
1013   ELF_NOTE_OS_GNU = 1,
1014   ELF_NOTE_OS_SOLARIS2 = 2,
1015   ELF_NOTE_OS_FREEBSD = 3,
1016   ELF_NOTE_OS_NETBSD = 4,
1017   ELF_NOTE_OS_SYLLABLE = 5
1018 };
1019
1020 // Program property types for NT_GNU_PROPERTY_TYPE_0.
1021
1022 enum
1023 {
1024   GNU_PROPERTY_STACK_SIZE = 1,
1025   GNU_PROPERTY_NO_COPY_ON_PROTECTED = 2,
1026   GNU_PROPERTY_LOPROC = 0xc0000000,
1027   GNU_PROPERTY_X86_COMPAT_ISA_1_USED = 0xc0000000,
1028   GNU_PROPERTY_X86_COMPAT_ISA_1_NEEDED = 0xc0000001,
1029   GNU_PROPERTY_X86_UINT32_AND_LO = 0xc0000002,
1030   GNU_PROPERTY_X86_UINT32_AND_HI = 0xc0007fff,
1031   GNU_PROPERTY_X86_UINT32_OR_LO = 0xc0008000,
1032   GNU_PROPERTY_X86_UINT32_OR_HI = 0xc000ffff,
1033   GNU_PROPERTY_X86_UINT32_OR_AND_LO = 0xc0010000,
1034   GNU_PROPERTY_X86_UINT32_OR_AND_HI = 0xc0017fff,
1035   GNU_PROPERTY_X86_COMPAT_2_ISA_1_NEEDED = GNU_PROPERTY_X86_UINT32_OR_LO + 0,
1036   GNU_PROPERTY_X86_COMPAT_2_ISA_1_USED = GNU_PROPERTY_X86_UINT32_OR_AND_LO + 0,
1037   GNU_PROPERTY_X86_FEATURE_1_AND = GNU_PROPERTY_X86_UINT32_AND_LO + 0,
1038   GNU_PROPERTY_X86_ISA_1_NEEDED = GNU_PROPERTY_X86_UINT32_OR_LO + 2,
1039   GNU_PROPERTY_X86_FEATURE_2_NEEDED = GNU_PROPERTY_X86_UINT32_OR_LO + 1,
1040   GNU_PROPERTY_X86_ISA_1_USED = GNU_PROPERTY_X86_UINT32_OR_AND_LO + 2,
1041   GNU_PROPERTY_X86_FEATURE_2_USED = GNU_PROPERTY_X86_UINT32_OR_AND_LO + 1,
1042   GNU_PROPERTY_HIPROC = 0xdfffffff,
1043   GNU_PROPERTY_LOUSER = 0xe0000000,
1044   GNU_PROPERTY_HIUSER = 0xffffffff
1045 };
1046
1047 } // End namespace elfcpp.
1048
1049 // Include internal details after defining the types.
1050 #include "elfcpp_internal.h"
1051
1052 namespace elfcpp
1053 {
1054
1055 // The offset of the ELF file header in the ELF file.
1056
1057 const int file_header_offset = 0;
1058
1059 // ELF structure sizes.
1060
1061 template<int size>
1062 struct Elf_sizes
1063 {
1064   // Size of ELF file header.
1065   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
1066   // Size of ELF segment header.
1067   static const int phdr_size = sizeof(internal::Phdr_data<size>);
1068   // Size of ELF section header.
1069   static const int shdr_size = sizeof(internal::Shdr_data<size>);
1070   // Size of ELF compression header.
1071   static const int chdr_size = sizeof(internal::Chdr_data<size>);
1072   // Size of ELF symbol table entry.
1073   static const int sym_size = sizeof(internal::Sym_data<size>);
1074   // Sizes of ELF reloc entries.
1075   static const int rel_size = sizeof(internal::Rel_data<size>);
1076   static const int rela_size = sizeof(internal::Rela_data<size>);
1077   // Size of ELF dynamic entry.
1078   static const int dyn_size = sizeof(internal::Dyn_data<size>);
1079   // Size of ELF version structures.
1080   static const int verdef_size = sizeof(internal::Verdef_data);
1081   static const int verdaux_size = sizeof(internal::Verdaux_data);
1082   static const int verneed_size = sizeof(internal::Verneed_data);
1083   static const int vernaux_size = sizeof(internal::Vernaux_data);
1084 };
1085
1086 // Accessor class for the ELF file header.
1087
1088 template<int size, bool big_endian>
1089 class Ehdr
1090 {
1091  public:
1092   Ehdr(const unsigned char* p)
1093     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
1094   { }
1095
1096   template<typename File>
1097   Ehdr(File* file, typename File::Location loc)
1098     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
1099            file->view(loc.file_offset, loc.data_size).data()))
1100   { }
1101
1102   const unsigned char*
1103   get_e_ident() const
1104   { return this->p_->e_ident; }
1105
1106   unsigned char
1107   get_ei_osabi() const
1108   { return this->p_->e_ident[EI_OSABI]; }
1109
1110   unsigned char
1111   get_ei_abiversion() const
1112   { return this->p_->e_ident[EI_ABIVERSION]; }
1113
1114   Elf_Half
1115   get_e_type() const
1116   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
1117
1118   Elf_Half
1119   get_e_machine() const
1120   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
1121
1122   Elf_Word
1123   get_e_version() const
1124   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
1125
1126   typename Elf_types<size>::Elf_Addr
1127   get_e_entry() const
1128   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
1129
1130   typename Elf_types<size>::Elf_Off
1131   get_e_phoff() const
1132   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
1133
1134   typename Elf_types<size>::Elf_Off
1135   get_e_shoff() const
1136   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
1137
1138   Elf_Word
1139   get_e_flags() const
1140   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
1141
1142   Elf_Half
1143   get_e_ehsize() const
1144   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
1145
1146   Elf_Half
1147   get_e_phentsize() const
1148   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
1149
1150   Elf_Half
1151   get_e_phnum() const
1152   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
1153
1154   Elf_Half
1155   get_e_shentsize() const
1156   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
1157
1158   Elf_Half
1159   get_e_shnum() const
1160   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
1161
1162   Elf_Half
1163   get_e_shstrndx() const
1164   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
1165
1166  private:
1167   const internal::Ehdr_data<size>* p_;
1168 };
1169
1170 // Write class for the ELF file header.
1171
1172 template<int size, bool big_endian>
1173 class Ehdr_write
1174 {
1175  public:
1176   Ehdr_write(unsigned char* p)
1177     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
1178   { }
1179
1180   void
1181   put_e_ident(const unsigned char v[EI_NIDENT]) const
1182   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
1183
1184   void
1185   put_e_type(Elf_Half v)
1186   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
1187
1188   void
1189   put_e_machine(Elf_Half v)
1190   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
1191
1192   void
1193   put_e_version(Elf_Word v)
1194   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
1195
1196   void
1197   put_e_entry(typename Elf_types<size>::Elf_Addr v)
1198   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
1199
1200   void
1201   put_e_phoff(typename Elf_types<size>::Elf_Off v)
1202   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
1203
1204   void
1205   put_e_shoff(typename Elf_types<size>::Elf_Off v)
1206   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
1207
1208   void
1209   put_e_flags(Elf_Word v)
1210   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
1211
1212   void
1213   put_e_ehsize(Elf_Half v)
1214   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
1215
1216   void
1217   put_e_phentsize(Elf_Half v)
1218   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
1219
1220   void
1221   put_e_phnum(Elf_Half v)
1222   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
1223
1224   void
1225   put_e_shentsize(Elf_Half v)
1226   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
1227
1228   void
1229   put_e_shnum(Elf_Half v)
1230   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
1231
1232   void
1233   put_e_shstrndx(Elf_Half v)
1234   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
1235
1236  private:
1237   internal::Ehdr_data<size>* p_;
1238 };
1239
1240 // Accessor class for an ELF section header.
1241
1242 template<int size, bool big_endian>
1243 class Shdr
1244 {
1245  public:
1246   Shdr(const unsigned char* p)
1247     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
1248   { }
1249
1250   template<typename File>
1251   Shdr(File* file, typename File::Location loc)
1252     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1253            file->view(loc.file_offset, loc.data_size).data()))
1254   { }
1255
1256   Elf_Word
1257   get_sh_name() const
1258   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1259
1260   Elf_Word
1261   get_sh_type() const
1262   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1263
1264   typename Elf_types<size>::Elf_WXword
1265   get_sh_flags() const
1266   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1267
1268   typename Elf_types<size>::Elf_Addr
1269   get_sh_addr() const
1270   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1271
1272   typename Elf_types<size>::Elf_Off
1273   get_sh_offset() const
1274   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1275
1276   typename Elf_types<size>::Elf_WXword
1277   get_sh_size() const
1278   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1279
1280   Elf_Word
1281   get_sh_link() const
1282   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1283
1284   Elf_Word
1285   get_sh_info() const
1286   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1287
1288   typename Elf_types<size>::Elf_WXword
1289   get_sh_addralign() const
1290   { return
1291       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1292
1293   typename Elf_types<size>::Elf_WXword
1294   get_sh_entsize() const
1295   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1296
1297  private:
1298   const internal::Shdr_data<size>* p_;
1299 };
1300
1301 // Write class for an ELF section header.
1302
1303 template<int size, bool big_endian>
1304 class Shdr_write
1305 {
1306  public:
1307   Shdr_write(unsigned char* p)
1308     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1309   { }
1310
1311   void
1312   put_sh_name(Elf_Word v)
1313   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1314
1315   void
1316   put_sh_type(Elf_Word v)
1317   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1318
1319   void
1320   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1321   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1322
1323   void
1324   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1325   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1326
1327   void
1328   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1329   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1330
1331   void
1332   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1333   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1334
1335   void
1336   put_sh_link(Elf_Word v)
1337   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1338
1339   void
1340   put_sh_info(Elf_Word v)
1341   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1342
1343   void
1344   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1345   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1346
1347   void
1348   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1349   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1350
1351  private:
1352   internal::Shdr_data<size>* p_;
1353 };
1354
1355 // Accessor class for an ELF compression header.
1356
1357 template<int size, bool big_endian>
1358 class Chdr
1359 {
1360  public:
1361   Chdr(const unsigned char* p)
1362     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(p))
1363   { }
1364
1365   template<typename File>
1366   Chdr(File* file, typename File::Location loc)
1367     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(
1368            file->view(loc.file_offset, loc.data_size).data()))
1369   { }
1370
1371   Elf_Word
1372   get_ch_type() const
1373   { return Convert<size, big_endian>::convert_host(this->p_->ch_type); }
1374
1375   typename Elf_types<size>::Elf_WXword
1376   get_ch_size() const
1377   { return Convert<size, big_endian>::convert_host(this->p_->ch_size); }
1378
1379   typename Elf_types<size>::Elf_WXword
1380   get_ch_addralign() const
1381   { return
1382       Convert<size, big_endian>::convert_host(this->p_->ch_addralign); }
1383
1384  private:
1385   const internal::Chdr_data<size>* p_;
1386 };
1387
1388 // Write class for an ELF compression header.
1389
1390 template<int size, bool big_endian>
1391 class Chdr_write
1392 {
1393  public:
1394   Chdr_write(unsigned char* p)
1395     : p_(reinterpret_cast<internal::Chdr_data<size>*>(p))
1396   { }
1397
1398   void
1399   put_ch_type(typename Elf_types<size>::Elf_WXword v)
1400   { this->p_->ch_type = Convert<size, big_endian>::convert_host(v); }
1401
1402   void
1403   put_ch_size(typename Elf_types<size>::Elf_WXword v)
1404   { this->p_->ch_size = Convert<size, big_endian>::convert_host(v); }
1405
1406   void
1407   put_ch_addralign(typename Elf_types<size>::Elf_WXword v)
1408   { this->p_->ch_addralign = Convert<size, big_endian>::convert_host(v); }
1409
1410   void
1411   put_ch_reserved(Elf_Word);
1412
1413  private:
1414   internal::Chdr_data<size>* p_;
1415 };
1416
1417 template<>
1418 inline void
1419 elfcpp::Chdr_write<64, true>::put_ch_reserved(Elf_Word v)
1420 {
1421   this->p_->ch_reserved = v;
1422 }
1423
1424 template<>
1425 inline void
1426 elfcpp::Chdr_write<64, false>::put_ch_reserved(Elf_Word v)
1427 {
1428   this->p_->ch_reserved = v;
1429 }
1430
1431 // Accessor class for an ELF segment header.
1432
1433 template<int size, bool big_endian>
1434 class Phdr
1435 {
1436  public:
1437   Phdr(const unsigned char* p)
1438     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1439   { }
1440
1441   template<typename File>
1442   Phdr(File* file, typename File::Location loc)
1443     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1444            file->view(loc.file_offset, loc.data_size).data()))
1445   { }
1446
1447   Elf_Word
1448   get_p_type() const
1449   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1450
1451   typename Elf_types<size>::Elf_Off
1452   get_p_offset() const
1453   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1454
1455   typename Elf_types<size>::Elf_Addr
1456   get_p_vaddr() const
1457   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1458
1459   typename Elf_types<size>::Elf_Addr
1460   get_p_paddr() const
1461   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1462
1463   typename Elf_types<size>::Elf_WXword
1464   get_p_filesz() const
1465   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1466
1467   typename Elf_types<size>::Elf_WXword
1468   get_p_memsz() const
1469   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1470
1471   Elf_Word
1472   get_p_flags() const
1473   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1474
1475   typename Elf_types<size>::Elf_WXword
1476   get_p_align() const
1477   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1478
1479  private:
1480   const internal::Phdr_data<size>* p_;
1481 };
1482
1483 // Write class for an ELF segment header.
1484
1485 template<int size, bool big_endian>
1486 class Phdr_write
1487 {
1488  public:
1489   Phdr_write(unsigned char* p)
1490     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1491   { }
1492
1493   void
1494   put_p_type(Elf_Word v)
1495   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1496
1497   void
1498   put_p_offset(typename Elf_types<size>::Elf_Off v)
1499   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1500
1501   void
1502   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1503   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1504
1505   void
1506   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1507   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1508
1509   void
1510   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1511   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1512
1513   void
1514   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1515   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1516
1517   void
1518   put_p_flags(Elf_Word v)
1519   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1520
1521   void
1522   put_p_align(typename Elf_types<size>::Elf_WXword v)
1523   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1524
1525  private:
1526   internal::Phdr_data<size>* p_;
1527 };
1528
1529 // Accessor class for an ELF symbol table entry.
1530
1531 template<int size, bool big_endian>
1532 class Sym
1533 {
1534  public:
1535   Sym(const unsigned char* p)
1536     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1537   { }
1538
1539   template<typename File>
1540   Sym(File* file, typename File::Location loc)
1541     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1542            file->view(loc.file_offset, loc.data_size).data()))
1543   { }
1544
1545   Elf_Word
1546   get_st_name() const
1547   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1548
1549   typename Elf_types<size>::Elf_Addr
1550   get_st_value() const
1551   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1552
1553   typename Elf_types<size>::Elf_WXword
1554   get_st_size() const
1555   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1556
1557   unsigned char
1558   get_st_info() const
1559   { return this->p_->st_info; }
1560
1561   STB
1562   get_st_bind() const
1563   { return elf_st_bind(this->get_st_info()); }
1564
1565   STT
1566   get_st_type() const
1567   { return elf_st_type(this->get_st_info()); }
1568
1569   unsigned char
1570   get_st_other() const
1571   { return this->p_->st_other; }
1572
1573   STV
1574   get_st_visibility() const
1575   { return elf_st_visibility(this->get_st_other()); }
1576
1577   unsigned char
1578   get_st_nonvis() const
1579   { return elf_st_nonvis(this->get_st_other()); }
1580
1581   Elf_Half
1582   get_st_shndx() const
1583   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1584
1585  private:
1586   const internal::Sym_data<size>* p_;
1587 };
1588
1589 // Writer class for an ELF symbol table entry.
1590
1591 template<int size, bool big_endian>
1592 class Sym_write
1593 {
1594  public:
1595   Sym_write(unsigned char* p)
1596     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1597   { }
1598
1599   void
1600   put_st_name(Elf_Word v)
1601   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1602
1603   void
1604   put_st_value(typename Elf_types<size>::Elf_Addr v)
1605   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1606
1607   void
1608   put_st_size(typename Elf_types<size>::Elf_WXword v)
1609   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1610
1611   void
1612   put_st_info(unsigned char v)
1613   { this->p_->st_info = v; }
1614
1615   void
1616   put_st_info(STB bind, STT type)
1617   { this->p_->st_info = elf_st_info(bind, type); }
1618
1619   void
1620   put_st_other(unsigned char v)
1621   { this->p_->st_other = v; }
1622
1623   void
1624   put_st_other(STV vis, unsigned char nonvis)
1625   { this->p_->st_other = elf_st_other(vis, nonvis); }
1626
1627   void
1628   put_st_shndx(Elf_Half v)
1629   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1630
1631   Sym<size, big_endian>
1632   sym()
1633   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1634
1635  private:
1636   internal::Sym_data<size>* p_;
1637 };
1638
1639 // Accessor classes for an ELF REL relocation entry.
1640
1641 template<int size, bool big_endian>
1642 class Rel
1643 {
1644  public:
1645   Rel(const unsigned char* p)
1646     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1647   { }
1648
1649   template<typename File>
1650   Rel(File* file, typename File::Location loc)
1651     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1652            file->view(loc.file_offset, loc.data_size).data()))
1653   { }
1654
1655   typename Elf_types<size>::Elf_Addr
1656   get_r_offset() const
1657   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1658
1659   typename Elf_types<size>::Elf_WXword
1660   get_r_info() const
1661   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1662
1663  private:
1664   const internal::Rel_data<size>* p_;
1665 };
1666
1667 // Writer class for an ELF Rel relocation.
1668
1669 template<int size, bool big_endian>
1670 class Rel_write
1671 {
1672  public:
1673   Rel_write(unsigned char* p)
1674     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1675   { }
1676
1677   void
1678   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1679   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1680
1681   void
1682   put_r_info(typename Elf_types<size>::Elf_WXword v)
1683   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1684
1685  private:
1686   internal::Rel_data<size>* p_;
1687 };
1688
1689 // Accessor class for an ELF Rela relocation.
1690
1691 template<int size, bool big_endian>
1692 class Rela
1693 {
1694  public:
1695   Rela(const unsigned char* p)
1696     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1697   { }
1698
1699   template<typename File>
1700   Rela(File* file, typename File::Location loc)
1701     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1702            file->view(loc.file_offset, loc.data_size).data()))
1703   { }
1704
1705   typename Elf_types<size>::Elf_Addr
1706   get_r_offset() const
1707   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1708
1709   typename Elf_types<size>::Elf_WXword
1710   get_r_info() const
1711   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1712
1713   typename Elf_types<size>::Elf_Swxword
1714   get_r_addend() const
1715   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1716
1717  private:
1718   const internal::Rela_data<size>* p_;
1719 };
1720
1721 // Writer class for an ELF Rela relocation.
1722
1723 template<int size, bool big_endian>
1724 class Rela_write
1725 {
1726  public:
1727   Rela_write(unsigned char* p)
1728     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1729   { }
1730
1731   void
1732   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1733   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1734
1735   void
1736   put_r_info(typename Elf_types<size>::Elf_WXword v)
1737   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1738
1739   void
1740   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1741   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1742
1743  private:
1744   internal::Rela_data<size>* p_;
1745 };
1746
1747 // MIPS-64 has a non-standard relocation layout.
1748
1749 template<bool big_endian>
1750 class Mips64_rel
1751 {
1752  public:
1753   Mips64_rel(const unsigned char* p)
1754     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(p))
1755   { }
1756
1757   template<typename File>
1758   Mips64_rel(File* file, typename File::Location loc)
1759     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(
1760            file->view(loc.file_offset, loc.data_size).data()))
1761   { }
1762
1763   typename Elf_types<64>::Elf_Addr
1764   get_r_offset() const
1765   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1766
1767   Elf_Word
1768   get_r_sym() const
1769   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1770
1771   unsigned char
1772   get_r_ssym() const
1773   { return this->p_->r_ssym; }
1774
1775   unsigned char
1776   get_r_type() const
1777   { return this->p_->r_type; }
1778
1779   unsigned char
1780   get_r_type2() const
1781   { return this->p_->r_type2; }
1782
1783   unsigned char
1784   get_r_type3() const
1785   { return this->p_->r_type3; }
1786
1787  private:
1788   const internal::Mips64_rel_data* p_;
1789 };
1790
1791 template<bool big_endian>
1792 class Mips64_rel_write
1793 {
1794  public:
1795   Mips64_rel_write(unsigned char* p)
1796     : p_(reinterpret_cast<internal::Mips64_rel_data*>(p))
1797   { }
1798
1799   void
1800   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1801   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1802
1803   void
1804   put_r_sym(Elf_Word v)
1805   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1806
1807   void
1808   put_r_ssym(unsigned char v)
1809   { this->p_->r_ssym = v; }
1810
1811   void
1812   put_r_type(unsigned char v)
1813   { this->p_->r_type = v; }
1814
1815   void
1816   put_r_type2(unsigned char v)
1817   { this->p_->r_type2 = v; }
1818
1819   void
1820   put_r_type3(unsigned char v)
1821   { this->p_->r_type3 = v; }
1822
1823  private:
1824   internal::Mips64_rel_data* p_;
1825 };
1826
1827 template<bool big_endian>
1828 class Mips64_rela
1829 {
1830  public:
1831   Mips64_rela(const unsigned char* p)
1832     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(p))
1833   { }
1834
1835   template<typename File>
1836   Mips64_rela(File* file, typename File::Location loc)
1837     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(
1838            file->view(loc.file_offset, loc.data_size).data()))
1839   { }
1840
1841   typename Elf_types<64>::Elf_Addr
1842   get_r_offset() const
1843   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1844
1845   Elf_Word
1846   get_r_sym() const
1847   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1848
1849   unsigned char
1850   get_r_ssym() const
1851   { return this->p_->r_ssym; }
1852
1853   unsigned char
1854   get_r_type() const
1855   { return this->p_->r_type; }
1856
1857   unsigned char
1858   get_r_type2() const
1859   { return this->p_->r_type2; }
1860
1861   unsigned char
1862   get_r_type3() const
1863   { return this->p_->r_type3; }
1864
1865   typename Elf_types<64>::Elf_Swxword
1866   get_r_addend() const
1867   { return Convert<64, big_endian>::convert_host(this->p_->r_addend); }
1868
1869  private:
1870   const internal::Mips64_rela_data* p_;
1871 };
1872
1873 template<bool big_endian>
1874 class Mips64_rela_write
1875 {
1876  public:
1877   Mips64_rela_write(unsigned char* p)
1878     : p_(reinterpret_cast<internal::Mips64_rela_data*>(p))
1879   { }
1880
1881   void
1882   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1883   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1884
1885   void
1886   put_r_sym(Elf_Word v)
1887   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1888
1889   void
1890   put_r_ssym(unsigned char v)
1891   { this->p_->r_ssym = v; }
1892
1893   void
1894   put_r_type(unsigned char v)
1895   { this->p_->r_type = v; }
1896
1897   void
1898   put_r_type2(unsigned char v)
1899   { this->p_->r_type2 = v; }
1900
1901   void
1902   put_r_type3(unsigned char v)
1903   { this->p_->r_type3 = v; }
1904
1905   void
1906   put_r_addend(typename Elf_types<64>::Elf_Swxword v)
1907   { this->p_->r_addend = Convert<64, big_endian>::convert_host(v); }
1908
1909  private:
1910   internal::Mips64_rela_data* p_;
1911 };
1912
1913 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1914 // PT_DYNAMIC segment.
1915
1916 template<int size, bool big_endian>
1917 class Dyn
1918 {
1919  public:
1920   Dyn(const unsigned char* p)
1921     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1922   { }
1923
1924   template<typename File>
1925   Dyn(File* file, typename File::Location loc)
1926     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1927            file->view(loc.file_offset, loc.data_size).data()))
1928   { }
1929
1930   typename Elf_types<size>::Elf_Swxword
1931   get_d_tag() const
1932   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1933
1934   typename Elf_types<size>::Elf_WXword
1935   get_d_val() const
1936   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1937
1938   typename Elf_types<size>::Elf_Addr
1939   get_d_ptr() const
1940   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1941
1942  private:
1943   const internal::Dyn_data<size>* p_;
1944 };
1945
1946 // Write class for an entry in the SHT_DYNAMIC section.
1947
1948 template<int size, bool big_endian>
1949 class Dyn_write
1950 {
1951  public:
1952   Dyn_write(unsigned char* p)
1953     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1954   { }
1955
1956   void
1957   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1958   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1959
1960   void
1961   put_d_val(typename Elf_types<size>::Elf_WXword v)
1962   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1963
1964   void
1965   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1966   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1967
1968  private:
1969   internal::Dyn_data<size>* p_;
1970 };
1971
1972 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1973
1974 template<int size, bool big_endian>
1975 class Verdef
1976 {
1977  public:
1978   Verdef(const unsigned char* p)
1979     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1980   { }
1981
1982   template<typename File>
1983   Verdef(File* file, typename File::Location loc)
1984     : p_(reinterpret_cast<const internal::Verdef_data*>(
1985            file->view(loc.file_offset, loc.data_size).data()))
1986   { }
1987
1988   Elf_Half
1989   get_vd_version() const
1990   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1991
1992   Elf_Half
1993   get_vd_flags() const
1994   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1995
1996   Elf_Half
1997   get_vd_ndx() const
1998   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1999
2000   Elf_Half
2001   get_vd_cnt() const
2002   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
2003
2004   Elf_Word
2005   get_vd_hash() const
2006   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
2007
2008   Elf_Word
2009   get_vd_aux() const
2010   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
2011
2012   Elf_Word
2013   get_vd_next() const
2014   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
2015
2016  private:
2017   const internal::Verdef_data* p_;
2018 };
2019
2020 template<int size, bool big_endian>
2021 class Verdef_write
2022 {
2023  public:
2024   Verdef_write(unsigned char* p)
2025     : p_(reinterpret_cast<internal::Verdef_data*>(p))
2026   { }
2027
2028   void
2029   set_vd_version(Elf_Half v)
2030   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
2031
2032   void
2033   set_vd_flags(Elf_Half v)
2034   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
2035
2036   void
2037   set_vd_ndx(Elf_Half v)
2038   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
2039
2040   void
2041   set_vd_cnt(Elf_Half v)
2042   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
2043
2044   void
2045   set_vd_hash(Elf_Word v)
2046   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
2047
2048   void
2049   set_vd_aux(Elf_Word v)
2050   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
2051
2052   void
2053   set_vd_next(Elf_Word v)
2054   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
2055
2056  private:
2057   internal::Verdef_data* p_;
2058 };
2059
2060 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
2061 // section.
2062
2063 template<int size, bool big_endian>
2064 class Verdaux
2065 {
2066  public:
2067   Verdaux(const unsigned char* p)
2068     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
2069   { }
2070
2071   template<typename File>
2072   Verdaux(File* file, typename File::Location loc)
2073     : p_(reinterpret_cast<const internal::Verdaux_data*>(
2074            file->view(loc.file_offset, loc.data_size).data()))
2075   { }
2076
2077   Elf_Word
2078   get_vda_name() const
2079   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
2080
2081   Elf_Word
2082   get_vda_next() const
2083   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
2084
2085  private:
2086   const internal::Verdaux_data* p_;
2087 };
2088
2089 template<int size, bool big_endian>
2090 class Verdaux_write
2091 {
2092  public:
2093   Verdaux_write(unsigned char* p)
2094     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
2095   { }
2096
2097   void
2098   set_vda_name(Elf_Word v)
2099   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
2100
2101   void
2102   set_vda_next(Elf_Word v)
2103   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
2104
2105  private:
2106   internal::Verdaux_data* p_;
2107 };
2108
2109 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
2110
2111 template<int size, bool big_endian>
2112 class Verneed
2113 {
2114  public:
2115   Verneed(const unsigned char* p)
2116     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
2117   { }
2118
2119   template<typename File>
2120   Verneed(File* file, typename File::Location loc)
2121     : p_(reinterpret_cast<const internal::Verneed_data*>(
2122            file->view(loc.file_offset, loc.data_size).data()))
2123   { }
2124
2125   Elf_Half
2126   get_vn_version() const
2127   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
2128
2129   Elf_Half
2130   get_vn_cnt() const
2131   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
2132
2133   Elf_Word
2134   get_vn_file() const
2135   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
2136
2137   Elf_Word
2138   get_vn_aux() const
2139   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
2140
2141   Elf_Word
2142   get_vn_next() const
2143   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
2144
2145  private:
2146   const internal::Verneed_data* p_;
2147 };
2148
2149 template<int size, bool big_endian>
2150 class Verneed_write
2151 {
2152  public:
2153   Verneed_write(unsigned char* p)
2154     : p_(reinterpret_cast<internal::Verneed_data*>(p))
2155   { }
2156
2157   void
2158   set_vn_version(Elf_Half v)
2159   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
2160
2161   void
2162   set_vn_cnt(Elf_Half v)
2163   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
2164
2165   void
2166   set_vn_file(Elf_Word v)
2167   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
2168
2169   void
2170   set_vn_aux(Elf_Word v)
2171   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
2172
2173   void
2174   set_vn_next(Elf_Word v)
2175   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
2176
2177  private:
2178   internal::Verneed_data* p_;
2179 };
2180
2181 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
2182 // section.
2183
2184 template<int size, bool big_endian>
2185 class Vernaux
2186 {
2187  public:
2188   Vernaux(const unsigned char* p)
2189     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
2190   { }
2191
2192   template<typename File>
2193   Vernaux(File* file, typename File::Location loc)
2194     : p_(reinterpret_cast<const internal::Vernaux_data*>(
2195            file->view(loc.file_offset, loc.data_size).data()))
2196   { }
2197
2198   Elf_Word
2199   get_vna_hash() const
2200   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
2201
2202   Elf_Half
2203   get_vna_flags() const
2204   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
2205
2206   Elf_Half
2207   get_vna_other() const
2208   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
2209
2210   Elf_Word
2211   get_vna_name() const
2212   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
2213
2214   Elf_Word
2215   get_vna_next() const
2216   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
2217
2218  private:
2219   const internal::Vernaux_data* p_;
2220 };
2221
2222 template<int size, bool big_endian>
2223 class Vernaux_write
2224 {
2225  public:
2226   Vernaux_write(unsigned char* p)
2227     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
2228   { }
2229
2230   void
2231   set_vna_hash(Elf_Word v)
2232   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
2233
2234   void
2235   set_vna_flags(Elf_Half v)
2236   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
2237
2238   void
2239   set_vna_other(Elf_Half v)
2240   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
2241
2242   void
2243   set_vna_name(Elf_Word v)
2244   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
2245
2246   void
2247   set_vna_next(Elf_Word v)
2248   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
2249
2250  private:
2251   internal::Vernaux_data* p_;
2252 };
2253
2254 } // End namespace elfcpp.
2255
2256 #endif // !defined(ELFPCP_H)