elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright (C) 2006-2017 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   // Link editor is to sort the entries in this section based on the
 417   // address specified in the associated symbol table entry.
 418   SHT_ORDERED = 0x7fffffff
 419 };
 420
 421 // The valid bit flags found in the Shdr sh_flags field.
 422
 423 enum SHF
 424 {
 425   SHF_WRITE = 0x1,
 426   SHF_ALLOC = 0x2,
 427   SHF_EXECINSTR = 0x4,
 428   SHF_MERGE = 0x10,
 429   SHF_STRINGS = 0x20,
 430   SHF_INFO_LINK = 0x40,
 431   SHF_LINK_ORDER = 0x80,
 432   SHF_OS_NONCONFORMING = 0x100,
 433   SHF_GROUP = 0x200,
 434   SHF_TLS = 0x400,
 435   SHF_COMPRESSED = 0x800,
 436   SHF_MASKOS = 0x0ff00000,
 437   SHF_MASKPROC = 0xf0000000,
 438
 439   // Indicates this section requires ordering in relation to
 440   // other sections of the same type.  Ordered sections are
 441   // combined within the section pointed to by the sh_link entry.
 442   // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
 443   // sorted section is to precede or follow, respectively, all
 444   // other sections in the set being ordered.
 445   SHF_ORDERED = 0x40000000,
 446   // This section is excluded from input to the link-edit of an
 447   // executable or shared object.  This flag is ignored if SHF_ALLOC
 448   // is also set, or if relocations exist against the section.
 449   SHF_EXCLUDE = 0x80000000,
 450
 451   // Section with data that is GP relative addressable.
 452   SHF_MIPS_GPREL = 0x10000000,
 453
 454   // x86_64 specific large section.
 455   SHF_X86_64_LARGE = 0x10000000
 456 };
 457
 458 // Values which appear in the first Elf_WXword of the section data
 459 // of a SHF_COMPRESSED section.
 460 enum
 461 {
 462   ELFCOMPRESS_ZLIB = 1,
 463   ELFCOMPRESS_LOOS = 0x60000000,
 464   ELFCOMPRESS_HIOS = 0x6fffffff,
 465   ELFCOMPRESS_LOPROC = 0x70000000,
 466   ELFCOMPRESS_HIPROC = 0x7fffffff,
 467 };
 468
 469 // Bit flags which appear in the first 32-bit word of the section data
 470 // of a SHT_GROUP section.
 471
 472 enum
 473 {
 474   GRP_COMDAT = 0x1,
 475   GRP_MASKOS = 0x0ff00000,
 476   GRP_MASKPROC = 0xf0000000
 477 };
 478
 479 // The valid values found in the Phdr p_type field.
 480
 481 enum PT
 482 {
 483   PT_NULL = 0,
 484   PT_LOAD = 1,
 485   PT_DYNAMIC = 2,
 486   PT_INTERP = 3,
 487   PT_NOTE = 4,
 488   PT_SHLIB = 5,
 489   PT_PHDR = 6,
 490   PT_TLS = 7,
 491   PT_LOOS = 0x60000000,
 492   PT_HIOS = 0x6fffffff,
 493   PT_LOPROC = 0x70000000,
 494   PT_HIPROC = 0x7fffffff,
 495   // The remaining values are not in the standard.
 496   // Frame unwind information.
 497   PT_GNU_EH_FRAME = 0x6474e550,
 498   PT_SUNW_EH_FRAME = 0x6474e550,
 499   // Stack flags.
 500   PT_GNU_STACK = 0x6474e551,
 501   // Read only after relocation.
 502   PT_GNU_RELRO = 0x6474e552,
 503   // Platform architecture compatibility information
 504   PT_ARM_ARCHEXT = 0x70000000,
 505   // Exception unwind tables
 506   PT_ARM_EXIDX = 0x70000001,
 507   // Register usage information.  Identifies one .reginfo section.
 508   PT_MIPS_REGINFO =0x70000000,
 509   // Runtime procedure table.
 510   PT_MIPS_RTPROC = 0x70000001,
 511   // .MIPS.options section.
 512   PT_MIPS_OPTIONS = 0x70000002,
 513   // .MIPS.abiflags section.
 514   PT_MIPS_ABIFLAGS = 0x70000003,
 515   // Platform architecture compatibility information
 516   PT_AARCH64_ARCHEXT = 0x70000000,
 517   // Exception unwind tables
 518   PT_AARCH64_UNWIND = 0x70000001,
 519   // 4k page table size
 520   PT_S390_PGSTE = 0x70000000,
 521 };
 522
 523 // The valid bit flags found in the Phdr p_flags field.
 524
 525 enum PF
 526 {
 527   PF_X = 0x1,
 528   PF_W = 0x2,
 529   PF_R = 0x4,
 530   PF_MASKOS = 0x0ff00000,
 531   PF_MASKPROC = 0xf0000000
 532 };
 533
 534 // Symbol binding from Sym st_info field.
 535
 536 enum STB
 537 {
 538   STB_LOCAL = 0,
 539   STB_GLOBAL = 1,
 540   STB_WEAK = 2,
 541   STB_LOOS = 10,
 542   STB_GNU_UNIQUE = 10,
 543   STB_HIOS = 12,
 544   STB_LOPROC = 13,
 545   STB_HIPROC = 15
 546 };
 547
 548 // Symbol types from Sym st_info field.
 549
 550 enum STT
 551 {
 552   STT_NOTYPE = 0,
 553   STT_OBJECT = 1,
 554   STT_FUNC = 2,
 555   STT_SECTION = 3,
 556   STT_FILE = 4,
 557   STT_COMMON = 5,
 558   STT_TLS = 6,
 559
 560   // GNU extension: symbol value points to a function which is called
 561   // at runtime to determine the final value of the symbol.
 562   STT_GNU_IFUNC = 10,
 563
 564   STT_LOOS = 10,
 565   STT_HIOS = 12,
 566   STT_LOPROC = 13,
 567   STT_HIPROC = 15,
 568
 569   // The section type that must be used for register symbols on
 570   // Sparc.  These symbols initialize a global register.
 571   STT_SPARC_REGISTER = 13,
 572
 573   // ARM: a THUMB function.  This is not defined in ARM ELF Specification but
 574   // used by the GNU tool-chain.
 575   STT_ARM_TFUNC = 13
 576 };
 577
 578 inline STB
 579 elf_st_bind(unsigned char info)
 580 {
 581   return static_cast<STB>(info >> 4);
 582 }
 583
 584 inline STT
 585 elf_st_type(unsigned char info)
 586 {
 587   return static_cast<STT>(info & 0xf);
 588 }
 589
 590 inline unsigned char
 591 elf_st_info(STB bind, STT type)
 592 {
 593   return ((static_cast<unsigned char>(bind) << 4)
 594           + (static_cast<unsigned char>(type) & 0xf));
 595 }
 596
 597 // Symbol visibility from Sym st_other field.
 598
 599 enum STV
 600 {
 601   STV_DEFAULT = 0,
 602   STV_INTERNAL = 1,
 603   STV_HIDDEN = 2,
 604   STV_PROTECTED = 3
 605 };
 606
 607 inline STV
 608 elf_st_visibility(unsigned char other)
 609 {
 610   return static_cast<STV>(other & 0x3);
 611 }
 612
 613 inline unsigned char
 614 elf_st_nonvis(unsigned char other)
 615 {
 616   return static_cast<STV>(other >> 2);
 617 }
 618
 619 inline unsigned char
 620 elf_st_other(STV vis, unsigned char nonvis)
 621 {
 622   return ((nonvis << 2)
 623           + (static_cast<unsigned char>(vis) & 3));
 624 }
 625
 626 // Reloc information from Rel/Rela r_info field.
 627
 628 template<int size>
 629 unsigned int
 630 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 631
 632 template<>
 633 inline unsigned int
 634 elf_r_sym<32>(Elf_Word v)
 635 {
 636   return v >> 8;
 637 }
 638
 639 template<>
 640 inline unsigned int
 641 elf_r_sym<64>(Elf_Xword v)
 642 {
 643   return v >> 32;
 644 }
 645
 646 template<int size>
 647 unsigned int
 648 elf_r_type(typename Elf_types<size>::Elf_WXword);
 649
 650 template<>
 651 inline unsigned int
 652 elf_r_type<32>(Elf_Word v)
 653 {
 654   return v & 0xff;
 655 }
 656
 657 template<>
 658 inline unsigned int
 659 elf_r_type<64>(Elf_Xword v)
 660 {
 661   return v & 0xffffffff;
 662 }
 663
 664 template<int size>
 665 typename Elf_types<size>::Elf_WXword
 666 elf_r_info(unsigned int s, unsigned int t);
 667
 668 template<>
 669 inline Elf_Word
 670 elf_r_info<32>(unsigned int s, unsigned int t)
 671 {
 672   return (s << 8) + (t & 0xff);
 673 }
 674
 675 template<>
 676 inline Elf_Xword
 677 elf_r_info<64>(unsigned int s, unsigned int t)
 678 {
 679   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 680 }
 681
 682 // Dynamic tags found in the PT_DYNAMIC segment.
 683
 684 enum DT
 685 {
 686   DT_NULL = 0,
 687   DT_NEEDED = 1,
 688   DT_PLTRELSZ = 2,
 689   DT_PLTGOT = 3,
 690   DT_HASH = 4,
 691   DT_STRTAB = 5,
 692   DT_SYMTAB = 6,
 693   DT_RELA = 7,
 694   DT_RELASZ = 8,
 695   DT_RELAENT = 9,
 696   DT_STRSZ = 10,
 697   DT_SYMENT = 11,
 698   DT_INIT = 12,
 699   DT_FINI = 13,
 700   DT_SONAME = 14,
 701   DT_RPATH = 15,
 702   DT_SYMBOLIC = 16,
 703   DT_REL = 17,
 704   DT_RELSZ = 18,
 705   DT_RELENT = 19,
 706   DT_PLTREL = 20,
 707   DT_DEBUG = 21,
 708   DT_TEXTREL = 22,
 709   DT_JMPREL = 23,
 710   DT_BIND_NOW = 24,
 711   DT_INIT_ARRAY = 25,
 712   DT_FINI_ARRAY = 26,
 713   DT_INIT_ARRAYSZ = 27,
 714   DT_FINI_ARRAYSZ = 28,
 715   DT_RUNPATH = 29,
 716   DT_FLAGS = 30,
 717
 718   // This is used to mark a range of dynamic tags.  It is not really
 719   // a tag value.
 720   DT_ENCODING = 32,
 721
 722   DT_PREINIT_ARRAY = 32,
 723   DT_PREINIT_ARRAYSZ = 33,
 724   DT_LOOS = 0x6000000d,
 725   DT_HIOS = 0x6ffff000,
 726   DT_LOPROC = 0x70000000,
 727   DT_HIPROC = 0x7fffffff,
 728
 729   // The remaining values are extensions used by GNU or Solaris.
 730   DT_VALRNGLO = 0x6ffffd00,
 731   DT_GNU_PRELINKED = 0x6ffffdf5,
 732   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 733   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 734   DT_CHECKSUM = 0x6ffffdf8,
 735   DT_PLTPADSZ = 0x6ffffdf9,
 736   DT_MOVEENT = 0x6ffffdfa,
 737   DT_MOVESZ = 0x6ffffdfb,
 738   DT_FEATURE = 0x6ffffdfc,
 739   DT_POSFLAG_1 = 0x6ffffdfd,
 740   DT_SYMINSZ = 0x6ffffdfe,
 741   DT_SYMINENT = 0x6ffffdff,
 742   DT_VALRNGHI = 0x6ffffdff,
 743
 744   DT_ADDRRNGLO = 0x6ffffe00,
 745   DT_GNU_HASH = 0x6ffffef5,
 746   DT_TLSDESC_PLT = 0x6ffffef6,
 747   DT_TLSDESC_GOT = 0x6ffffef7,
 748   DT_GNU_CONFLICT = 0x6ffffef8,
 749   DT_GNU_LIBLIST = 0x6ffffef9,
 750   DT_CONFIG = 0x6ffffefa,
 751   DT_DEPAUDIT = 0x6ffffefb,
 752   DT_AUDIT = 0x6ffffefc,
 753   DT_PLTPAD = 0x6ffffefd,
 754   DT_MOVETAB = 0x6ffffefe,
 755   DT_SYMINFO = 0x6ffffeff,
 756   DT_ADDRRNGHI = 0x6ffffeff,
 757
 758   DT_RELACOUNT = 0x6ffffff9,
 759   DT_RELCOUNT = 0x6ffffffa,
 760   DT_FLAGS_1 = 0x6ffffffb,
 761   DT_VERDEF = 0x6ffffffc,
 762   DT_VERDEFNUM = 0x6ffffffd,
 763   DT_VERNEED = 0x6ffffffe,
 764   DT_VERNEEDNUM = 0x6fffffff,
 765
 766   DT_VERSYM = 0x6ffffff0,
 767
 768   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 769   DT_PPC_GOT = 0x70000000,
 770
 771   // Specify the start of the .glink section.
 772   DT_PPC64_GLINK = 0x70000000,
 773
 774   // Specify the start and size of the .opd section.
 775   DT_PPC64_OPD = 0x70000001,
 776   DT_PPC64_OPDSZ = 0x70000002,
 777
 778   // Specify whether various optimisations are possible.
 779   DT_PPC64_OPT = 0x70000003,
 780
 781   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 782   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 783   // symbol in the symbol table.
 784   DT_SPARC_REGISTER = 0x70000001,
 785
 786   // MIPS specific dynamic array tags.
 787   // 32 bit version number for runtime linker interface.
 788   DT_MIPS_RLD_VERSION = 0x70000001,
 789   // Time stamp.
 790   DT_MIPS_TIME_STAMP = 0x70000002,
 791   // Checksum of external strings and common sizes.
 792   DT_MIPS_ICHECKSUM = 0x70000003,
 793   // Index of version string in string table.
 794   DT_MIPS_IVERSION = 0x70000004,
 795   // 32 bits of flags.
 796   DT_MIPS_FLAGS = 0x70000005,
 797   // Base address of the segment.
 798   DT_MIPS_BASE_ADDRESS = 0x70000006,
 799   // ???
 800   DT_MIPS_MSYM = 0x70000007,
 801   // Address of .conflict section.
 802   DT_MIPS_CONFLICT = 0x70000008,
 803   // Address of .liblist section.
 804   DT_MIPS_LIBLIST = 0x70000009,
 805   // Number of local global offset table entries.
 806   DT_MIPS_LOCAL_GOTNO = 0x7000000a,
 807   // Number of entries in the .conflict section.
 808   DT_MIPS_CONFLICTNO = 0x7000000b,
 809   // Number of entries in the .liblist section.
 810   DT_MIPS_LIBLISTNO = 0x70000010,
 811   // Number of entries in the .dynsym section.
 812   DT_MIPS_SYMTABNO = 0x70000011,
 813   // Index of first external dynamic symbol not referenced locally.
 814   DT_MIPS_UNREFEXTNO = 0x70000012,
 815   // Index of first dynamic symbol in global offset table.
 816   DT_MIPS_GOTSYM = 0x70000013,
 817   // Number of page table entries in global offset table.
 818   DT_MIPS_HIPAGENO = 0x70000014,
 819   // Address of run time loader map, used for debugging.
 820   DT_MIPS_RLD_MAP = 0x70000016,
 821   // Delta C++ class definition.
 822   DT_MIPS_DELTA_CLASS = 0x70000017,
 823   // Number of entries in DT_MIPS_DELTA_CLASS.
 824   DT_MIPS_DELTA_CLASS_NO = 0x70000018,
 825   // Delta C++ class instances.
 826   DT_MIPS_DELTA_INSTANCE = 0x70000019,
 827   // Number of entries in DT_MIPS_DELTA_INSTANCE.
 828   DT_MIPS_DELTA_INSTANCE_NO = 0x7000001a,
 829   // Delta relocations.
 830   DT_MIPS_DELTA_RELOC = 0x7000001b,
 831   // Number of entries in DT_MIPS_DELTA_RELOC.
 832   DT_MIPS_DELTA_RELOC_NO = 0x7000001c,
 833   // Delta symbols that Delta relocations refer to.
 834   DT_MIPS_DELTA_SYM = 0x7000001d,
 835   // Number of entries in DT_MIPS_DELTA_SYM.
 836   DT_MIPS_DELTA_SYM_NO = 0x7000001e,
 837   // Delta symbols that hold class declarations.
 838   DT_MIPS_DELTA_CLASSSYM = 0x70000020,
 839   // Number of entries in DT_MIPS_DELTA_CLASSSYM.
 840   DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021,
 841   // Flags indicating information about C++ flavor.
 842   DT_MIPS_CXX_FLAGS = 0x70000022,
 843   // Pixie information (???).
 844   DT_MIPS_PIXIE_INIT = 0x70000023,
 845   // Address of .MIPS.symlib
 846   DT_MIPS_SYMBOL_LIB = 0x70000024,
 847   // The GOT index of the first PTE for a segment
 848   DT_MIPS_LOCALPAGE_GOTIDX = 0x70000025,
 849   // The GOT index of the first PTE for a local symbol
 850   DT_MIPS_LOCAL_GOTIDX = 0x70000026,
 851   // The GOT index of the first PTE for a hidden symbol
 852   DT_MIPS_HIDDEN_GOTIDX = 0x70000027,
 853   // The GOT index of the first PTE for a protected symbol
 854   DT_MIPS_PROTECTED_GOTIDX = 0x70000028,
 855   // Address of `.MIPS.options'.
 856   DT_MIPS_OPTIONS = 0x70000029,
 857   // Address of `.interface'.
 858   DT_MIPS_INTERFACE = 0x7000002a,
 859   // ???
 860   DT_MIPS_DYNSTR_ALIGN = 0x7000002b,
 861   // Size of the .interface section.
 862   DT_MIPS_INTERFACE_SIZE = 0x7000002c,
 863   // Size of rld_text_resolve function stored in the GOT.
 864   DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002d,
 865   // Default suffix of DSO to be added by rld on dlopen() calls.
 866   DT_MIPS_PERF_SUFFIX = 0x7000002e,
 867   // Size of compact relocation section (O32).
 868   DT_MIPS_COMPACT_SIZE = 0x7000002f,
 869   // GP value for auxiliary GOTs.
 870   DT_MIPS_GP_VALUE = 0x70000030,
 871   // Address of auxiliary .dynamic.
 872   DT_MIPS_AUX_DYNAMIC = 0x70000031,
 873   // Address of the base of the PLTGOT.
 874   DT_MIPS_PLTGOT = 0x70000032,
 875   // Points to the base of a writable PLT.
 876   DT_MIPS_RWPLT = 0x70000034,
 877   // Relative offset of run time loader map, used for debugging.
 878   DT_MIPS_RLD_MAP_REL = 0x70000035,
 879
 880   DT_AUXILIARY = 0x7ffffffd,
 881   DT_USED = 0x7ffffffe,
 882   DT_FILTER = 0x7fffffff
 883 };
 884
 885 // Flags found in the DT_FLAGS dynamic element.
 886
 887 enum DF
 888 {
 889   DF_ORIGIN = 0x1,
 890   DF_SYMBOLIC = 0x2,
 891   DF_TEXTREL = 0x4,
 892   DF_BIND_NOW = 0x8,
 893   DF_STATIC_TLS = 0x10
 894 };
 895
 896 // Flags found in the DT_FLAGS_1 dynamic element.
 897
 898 enum DF_1
 899 {
 900   DF_1_NOW = 0x1,
 901   DF_1_GLOBAL = 0x2,
 902   DF_1_GROUP = 0x4,
 903   DF_1_NODELETE = 0x8,
 904   DF_1_LOADFLTR = 0x10,
 905   DF_1_INITFIRST = 0x20,
 906   DF_1_NOOPEN = 0x40,
 907   DF_1_ORIGIN = 0x80,
 908   DF_1_DIRECT = 0x100,
 909   DF_1_TRANS = 0x200,
 910   DF_1_INTERPOSE = 0x400,
 911   DF_1_NODEFLIB = 0x800,
 912   DF_1_NODUMP = 0x1000,
 913   DF_1_CONLFAT = 0x2000
 914 };
 915
 916 // Version numbers which appear in the vd_version field of a Verdef
 917 // structure.
 918
 919 const int VER_DEF_NONE = 0;
 920 const int VER_DEF_CURRENT = 1;
 921
 922 // Version numbers which appear in the vn_version field of a Verneed
 923 // structure.
 924
 925 const int VER_NEED_NONE = 0;
 926 const int VER_NEED_CURRENT = 1;
 927
 928 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 929 // Vernaux.
 930
 931 const int VER_FLG_BASE = 0x1;
 932 const int VER_FLG_WEAK = 0x2;
 933 const int VER_FLG_INFO = 0x4;
 934
 935 // Special constants found in the SHT_GNU_versym entries.
 936
 937 const int VER_NDX_LOCAL = 0;
 938 const int VER_NDX_GLOBAL = 1;
 939
 940 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 941 // the symbol is hidden and can only be seen when referenced using an
 942 // explicit version number.  This is a GNU extension.
 943
 944 const int VERSYM_HIDDEN = 0x8000;
 945
 946 // This is the mask for the rest of the data in a word read from a
 947 // SHT_GNU_versym section.
 948
 949 const int VERSYM_VERSION = 0x7fff;
 950
 951 // Note descriptor type codes for notes in a non-core file with an
 952 // empty name.
 953
 954 enum
 955 {
 956   // A version string.
 957   NT_VERSION = 1,
 958   // An architecture string.
 959   NT_ARCH = 2
 960 };
 961
 962 // Note descriptor type codes for notes in a non-core file with the
 963 // name "GNU".
 964
 965 enum
 966 {
 967   // The minimum ABI level.  This is used by the dynamic linker to
 968   // describe the minimal kernel version on which a shared library may
 969   // be used.  Th value should be four words.  Word 0 is an OS
 970   // descriptor (see below).  Word 1 is the major version of the ABI.
 971   // Word 2 is the minor version.  Word 3 is the subminor version.
 972   NT_GNU_ABI_TAG = 1,
 973   // Hardware capabilities information.  Word 0 is the number of
 974   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 975   // the descriptor is a series of entries, where each entry is a
 976   // single byte followed by a nul terminated string.  The byte gives
 977   // the bit number to test if enabled in the bitmask.
 978   NT_GNU_HWCAP = 2,
 979   // The build ID as set by the linker's --build-id option.  The
 980   // format of the descriptor depends on the build ID style.
 981   NT_GNU_BUILD_ID = 3,
 982   // The version of gold used to link.  Th descriptor is just a
 983   // string.
 984   NT_GNU_GOLD_VERSION = 4
 985 };
 986
 987 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 988
 989 enum
 990 {
 991   ELF_NOTE_OS_LINUX = 0,
 992   ELF_NOTE_OS_GNU = 1,
 993   ELF_NOTE_OS_SOLARIS2 = 2,
 994   ELF_NOTE_OS_FREEBSD = 3,
 995   ELF_NOTE_OS_NETBSD = 4,
 996   ELF_NOTE_OS_SYLLABLE = 5
 997 };
 998
 999 } // End namespace elfcpp.
1000
1001 // Include internal details after defining the types.
1002 #include "elfcpp_internal.h"
1003
1004 namespace elfcpp
1005 {
1006
1007 // The offset of the ELF file header in the ELF file.
1008
1009 const int file_header_offset = 0;
1010
1011 // ELF structure sizes.
1012
1013 template<int size>
1014 struct Elf_sizes
1015 {
1016   // Size of ELF file header.
1017   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
1018   // Size of ELF segment header.
1019   static const int phdr_size = sizeof(internal::Phdr_data<size>);
1020   // Size of ELF section header.
1021   static const int shdr_size = sizeof(internal::Shdr_data<size>);
1022   // Size of ELF compression header.
1023   static const int chdr_size = sizeof(internal::Chdr_data<size>);
1024   // Size of ELF symbol table entry.
1025   static const int sym_size = sizeof(internal::Sym_data<size>);
1026   // Sizes of ELF reloc entries.
1027   static const int rel_size = sizeof(internal::Rel_data<size>);
1028   static const int rela_size = sizeof(internal::Rela_data<size>);
1029   // Size of ELF dynamic entry.
1030   static const int dyn_size = sizeof(internal::Dyn_data<size>);
1031   // Size of ELF version structures.
1032   static const int verdef_size = sizeof(internal::Verdef_data);
1033   static const int verdaux_size = sizeof(internal::Verdaux_data);
1034   static const int verneed_size = sizeof(internal::Verneed_data);
1035   static const int vernaux_size = sizeof(internal::Vernaux_data);
1036 };
1037
1038 // Accessor class for the ELF file header.
1039
1040 template<int size, bool big_endian>
1041 class Ehdr
1042 {
1043  public:
1044   Ehdr(const unsigned char* p)
1045     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
1046   { }
1047
1048   template<typename File>
1049   Ehdr(File* file, typename File::Location loc)
1050     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
1051            file->view(loc.file_offset, loc.data_size).data()))
1052   { }
1053
1054   const unsigned char*
1055   get_e_ident() const
1056   { return this->p_->e_ident; }
1057
1058   Elf_Half
1059   get_e_type() const
1060   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
1061
1062   Elf_Half
1063   get_e_machine() const
1064   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
1065
1066   Elf_Word
1067   get_e_version() const
1068   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
1069
1070   typename Elf_types<size>::Elf_Addr
1071   get_e_entry() const
1072   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
1073
1074   typename Elf_types<size>::Elf_Off
1075   get_e_phoff() const
1076   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
1077
1078   typename Elf_types<size>::Elf_Off
1079   get_e_shoff() const
1080   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
1081
1082   Elf_Word
1083   get_e_flags() const
1084   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
1085
1086   Elf_Half
1087   get_e_ehsize() const
1088   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
1089
1090   Elf_Half
1091   get_e_phentsize() const
1092   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
1093
1094   Elf_Half
1095   get_e_phnum() const
1096   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
1097
1098   Elf_Half
1099   get_e_shentsize() const
1100   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
1101
1102   Elf_Half
1103   get_e_shnum() const
1104   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
1105
1106   Elf_Half
1107   get_e_shstrndx() const
1108   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
1109
1110  private:
1111   const internal::Ehdr_data<size>* p_;
1112 };
1113
1114 // Write class for the ELF file header.
1115
1116 template<int size, bool big_endian>
1117 class Ehdr_write
1118 {
1119  public:
1120   Ehdr_write(unsigned char* p)
1121     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
1122   { }
1123
1124   void
1125   put_e_ident(const unsigned char v[EI_NIDENT]) const
1126   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
1127
1128   void
1129   put_e_type(Elf_Half v)
1130   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
1131
1132   void
1133   put_e_machine(Elf_Half v)
1134   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
1135
1136   void
1137   put_e_version(Elf_Word v)
1138   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
1139
1140   void
1141   put_e_entry(typename Elf_types<size>::Elf_Addr v)
1142   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
1143
1144   void
1145   put_e_phoff(typename Elf_types<size>::Elf_Off v)
1146   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
1147
1148   void
1149   put_e_shoff(typename Elf_types<size>::Elf_Off v)
1150   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
1151
1152   void
1153   put_e_flags(Elf_Word v)
1154   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
1155
1156   void
1157   put_e_ehsize(Elf_Half v)
1158   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
1159
1160   void
1161   put_e_phentsize(Elf_Half v)
1162   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
1163
1164   void
1165   put_e_phnum(Elf_Half v)
1166   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
1167
1168   void
1169   put_e_shentsize(Elf_Half v)
1170   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
1171
1172   void
1173   put_e_shnum(Elf_Half v)
1174   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
1175
1176   void
1177   put_e_shstrndx(Elf_Half v)
1178   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
1179
1180  private:
1181   internal::Ehdr_data<size>* p_;
1182 };
1183
1184 // Accessor class for an ELF section header.
1185
1186 template<int size, bool big_endian>
1187 class Shdr
1188 {
1189  public:
1190   Shdr(const unsigned char* p)
1191     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
1192   { }
1193
1194   template<typename File>
1195   Shdr(File* file, typename File::Location loc)
1196     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1197            file->view(loc.file_offset, loc.data_size).data()))
1198   { }
1199
1200   Elf_Word
1201   get_sh_name() const
1202   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1203
1204   Elf_Word
1205   get_sh_type() const
1206   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1207
1208   typename Elf_types<size>::Elf_WXword
1209   get_sh_flags() const
1210   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1211
1212   typename Elf_types<size>::Elf_Addr
1213   get_sh_addr() const
1214   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1215
1216   typename Elf_types<size>::Elf_Off
1217   get_sh_offset() const
1218   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1219
1220   typename Elf_types<size>::Elf_WXword
1221   get_sh_size() const
1222   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1223
1224   Elf_Word
1225   get_sh_link() const
1226   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1227
1228   Elf_Word
1229   get_sh_info() const
1230   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1231
1232   typename Elf_types<size>::Elf_WXword
1233   get_sh_addralign() const
1234   { return
1235       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1236
1237   typename Elf_types<size>::Elf_WXword
1238   get_sh_entsize() const
1239   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1240
1241  private:
1242   const internal::Shdr_data<size>* p_;
1243 };
1244
1245 // Write class for an ELF section header.
1246
1247 template<int size, bool big_endian>
1248 class Shdr_write
1249 {
1250  public:
1251   Shdr_write(unsigned char* p)
1252     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1253   { }
1254
1255   void
1256   put_sh_name(Elf_Word v)
1257   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1258
1259   void
1260   put_sh_type(Elf_Word v)
1261   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1262
1263   void
1264   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1265   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1266
1267   void
1268   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1269   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1270
1271   void
1272   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1273   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1274
1275   void
1276   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1277   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1278
1279   void
1280   put_sh_link(Elf_Word v)
1281   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1282
1283   void
1284   put_sh_info(Elf_Word v)
1285   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1286
1287   void
1288   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1289   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1290
1291   void
1292   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1293   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1294
1295  private:
1296   internal::Shdr_data<size>* p_;
1297 };
1298
1299 // Accessor class for an ELF compression header.
1300
1301 template<int size, bool big_endian>
1302 class Chdr
1303 {
1304  public:
1305   Chdr(const unsigned char* p)
1306     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(p))
1307   { }
1308
1309   template<typename File>
1310   Chdr(File* file, typename File::Location loc)
1311     : p_(reinterpret_cast<const internal::Chdr_data<size>*>(
1312            file->view(loc.file_offset, loc.data_size).data()))
1313   { }
1314
1315   Elf_Word
1316   get_ch_type() const
1317   { return Convert<size, big_endian>::convert_host(this->p_->ch_type); }
1318
1319   typename Elf_types<size>::Elf_WXword
1320   get_ch_size() const
1321   { return Convert<size, big_endian>::convert_host(this->p_->ch_size); }
1322
1323   typename Elf_types<size>::Elf_WXword
1324   get_ch_addralign() const
1325   { return
1326       Convert<size, big_endian>::convert_host(this->p_->ch_addralign); }
1327
1328  private:
1329   const internal::Chdr_data<size>* p_;
1330 };
1331
1332 // Write class for an ELF compression header.
1333
1334 template<int size, bool big_endian>
1335 class Chdr_write
1336 {
1337  public:
1338   Chdr_write(unsigned char* p)
1339     : p_(reinterpret_cast<internal::Chdr_data<size>*>(p))
1340   { }
1341
1342   void
1343   put_ch_type(typename Elf_types<size>::Elf_WXword v)
1344   { this->p_->ch_type = Convert<size, big_endian>::convert_host(v); }
1345
1346   void
1347   put_ch_size(typename Elf_types<size>::Elf_WXword v)
1348   { this->p_->ch_size = Convert<size, big_endian>::convert_host(v); }
1349
1350   void
1351   put_ch_addralign(typename Elf_types<size>::Elf_WXword v)
1352   { this->p_->ch_addralign = Convert<size, big_endian>::convert_host(v); }
1353
1354  private:
1355   internal::Chdr_data<size>* p_;
1356 };
1357
1358 // Accessor class for an ELF segment header.
1359
1360 template<int size, bool big_endian>
1361 class Phdr
1362 {
1363  public:
1364   Phdr(const unsigned char* p)
1365     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1366   { }
1367
1368   template<typename File>
1369   Phdr(File* file, typename File::Location loc)
1370     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1371            file->view(loc.file_offset, loc.data_size).data()))
1372   { }
1373
1374   Elf_Word
1375   get_p_type() const
1376   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1377
1378   typename Elf_types<size>::Elf_Off
1379   get_p_offset() const
1380   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1381
1382   typename Elf_types<size>::Elf_Addr
1383   get_p_vaddr() const
1384   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1385
1386   typename Elf_types<size>::Elf_Addr
1387   get_p_paddr() const
1388   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1389
1390   typename Elf_types<size>::Elf_WXword
1391   get_p_filesz() const
1392   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1393
1394   typename Elf_types<size>::Elf_WXword
1395   get_p_memsz() const
1396   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1397
1398   Elf_Word
1399   get_p_flags() const
1400   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1401
1402   typename Elf_types<size>::Elf_WXword
1403   get_p_align() const
1404   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1405
1406  private:
1407   const internal::Phdr_data<size>* p_;
1408 };
1409
1410 // Write class for an ELF segment header.
1411
1412 template<int size, bool big_endian>
1413 class Phdr_write
1414 {
1415  public:
1416   Phdr_write(unsigned char* p)
1417     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1418   { }
1419
1420   void
1421   put_p_type(Elf_Word v)
1422   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1423
1424   void
1425   put_p_offset(typename Elf_types<size>::Elf_Off v)
1426   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1427
1428   void
1429   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1430   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1431
1432   void
1433   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1434   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1435
1436   void
1437   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1438   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1439
1440   void
1441   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1442   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1443
1444   void
1445   put_p_flags(Elf_Word v)
1446   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1447
1448   void
1449   put_p_align(typename Elf_types<size>::Elf_WXword v)
1450   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1451
1452  private:
1453   internal::Phdr_data<size>* p_;
1454 };
1455
1456 // Accessor class for an ELF symbol table entry.
1457
1458 template<int size, bool big_endian>
1459 class Sym
1460 {
1461  public:
1462   Sym(const unsigned char* p)
1463     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1464   { }
1465
1466   template<typename File>
1467   Sym(File* file, typename File::Location loc)
1468     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1469            file->view(loc.file_offset, loc.data_size).data()))
1470   { }
1471
1472   Elf_Word
1473   get_st_name() const
1474   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1475
1476   typename Elf_types<size>::Elf_Addr
1477   get_st_value() const
1478   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1479
1480   typename Elf_types<size>::Elf_WXword
1481   get_st_size() const
1482   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1483
1484   unsigned char
1485   get_st_info() const
1486   { return this->p_->st_info; }
1487
1488   STB
1489   get_st_bind() const
1490   { return elf_st_bind(this->get_st_info()); }
1491
1492   STT
1493   get_st_type() const
1494   { return elf_st_type(this->get_st_info()); }
1495
1496   unsigned char
1497   get_st_other() const
1498   { return this->p_->st_other; }
1499
1500   STV
1501   get_st_visibility() const
1502   { return elf_st_visibility(this->get_st_other()); }
1503
1504   unsigned char
1505   get_st_nonvis() const
1506   { return elf_st_nonvis(this->get_st_other()); }
1507
1508   Elf_Half
1509   get_st_shndx() const
1510   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1511
1512  private:
1513   const internal::Sym_data<size>* p_;
1514 };
1515
1516 // Writer class for an ELF symbol table entry.
1517
1518 template<int size, bool big_endian>
1519 class Sym_write
1520 {
1521  public:
1522   Sym_write(unsigned char* p)
1523     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1524   { }
1525
1526   void
1527   put_st_name(Elf_Word v)
1528   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1529
1530   void
1531   put_st_value(typename Elf_types<size>::Elf_Addr v)
1532   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1533
1534   void
1535   put_st_size(typename Elf_types<size>::Elf_WXword v)
1536   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1537
1538   void
1539   put_st_info(unsigned char v)
1540   { this->p_->st_info = v; }
1541
1542   void
1543   put_st_info(STB bind, STT type)
1544   { this->p_->st_info = elf_st_info(bind, type); }
1545
1546   void
1547   put_st_other(unsigned char v)
1548   { this->p_->st_other = v; }
1549
1550   void
1551   put_st_other(STV vis, unsigned char nonvis)
1552   { this->p_->st_other = elf_st_other(vis, nonvis); }
1553
1554   void
1555   put_st_shndx(Elf_Half v)
1556   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1557
1558   Sym<size, big_endian>
1559   sym()
1560   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1561
1562  private:
1563   internal::Sym_data<size>* p_;
1564 };
1565
1566 // Accessor classes for an ELF REL relocation entry.
1567
1568 template<int size, bool big_endian>
1569 class Rel
1570 {
1571  public:
1572   Rel(const unsigned char* p)
1573     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1574   { }
1575
1576   template<typename File>
1577   Rel(File* file, typename File::Location loc)
1578     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1579            file->view(loc.file_offset, loc.data_size).data()))
1580   { }
1581
1582   typename Elf_types<size>::Elf_Addr
1583   get_r_offset() const
1584   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1585
1586   typename Elf_types<size>::Elf_WXword
1587   get_r_info() const
1588   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1589
1590  private:
1591   const internal::Rel_data<size>* p_;
1592 };
1593
1594 // Writer class for an ELF Rel relocation.
1595
1596 template<int size, bool big_endian>
1597 class Rel_write
1598 {
1599  public:
1600   Rel_write(unsigned char* p)
1601     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1602   { }
1603
1604   void
1605   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1606   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1607
1608   void
1609   put_r_info(typename Elf_types<size>::Elf_WXword v)
1610   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1611
1612  private:
1613   internal::Rel_data<size>* p_;
1614 };
1615
1616 // Accessor class for an ELF Rela relocation.
1617
1618 template<int size, bool big_endian>
1619 class Rela
1620 {
1621  public:
1622   Rela(const unsigned char* p)
1623     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1624   { }
1625
1626   template<typename File>
1627   Rela(File* file, typename File::Location loc)
1628     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1629            file->view(loc.file_offset, loc.data_size).data()))
1630   { }
1631
1632   typename Elf_types<size>::Elf_Addr
1633   get_r_offset() const
1634   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1635
1636   typename Elf_types<size>::Elf_WXword
1637   get_r_info() const
1638   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1639
1640   typename Elf_types<size>::Elf_Swxword
1641   get_r_addend() const
1642   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1643
1644  private:
1645   const internal::Rela_data<size>* p_;
1646 };
1647
1648 // Writer class for an ELF Rela relocation.
1649
1650 template<int size, bool big_endian>
1651 class Rela_write
1652 {
1653  public:
1654   Rela_write(unsigned char* p)
1655     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1656   { }
1657
1658   void
1659   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1660   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1661
1662   void
1663   put_r_info(typename Elf_types<size>::Elf_WXword v)
1664   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1665
1666   void
1667   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1668   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1669
1670  private:
1671   internal::Rela_data<size>* p_;
1672 };
1673
1674 // MIPS-64 has a non-standard relocation layout.
1675
1676 template<bool big_endian>
1677 class Mips64_rel
1678 {
1679  public:
1680   Mips64_rel(const unsigned char* p)
1681     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(p))
1682   { }
1683
1684   template<typename File>
1685   Mips64_rel(File* file, typename File::Location loc)
1686     : p_(reinterpret_cast<const internal::Mips64_rel_data*>(
1687            file->view(loc.file_offset, loc.data_size).data()))
1688   { }
1689
1690   typename Elf_types<64>::Elf_Addr
1691   get_r_offset() const
1692   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1693
1694   Elf_Word
1695   get_r_sym() const
1696   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1697
1698   unsigned char
1699   get_r_ssym() const
1700   { return this->p_->r_ssym; }
1701
1702   unsigned char
1703   get_r_type() const
1704   { return this->p_->r_type; }
1705
1706   unsigned char
1707   get_r_type2() const
1708   { return this->p_->r_type2; }
1709
1710   unsigned char
1711   get_r_type3() const
1712   { return this->p_->r_type3; }
1713
1714  private:
1715   const internal::Mips64_rel_data* p_;
1716 };
1717
1718 template<bool big_endian>
1719 class Mips64_rel_write
1720 {
1721  public:
1722   Mips64_rel_write(unsigned char* p)
1723     : p_(reinterpret_cast<internal::Mips64_rel_data*>(p))
1724   { }
1725
1726   void
1727   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1728   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1729
1730   void
1731   put_r_sym(Elf_Word v)
1732   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1733
1734   void
1735   put_r_ssym(unsigned char v)
1736   { this->p_->r_ssym = v; }
1737
1738   void
1739   put_r_type(unsigned char v)
1740   { this->p_->r_type = v; }
1741
1742   void
1743   put_r_type2(unsigned char v)
1744   { this->p_->r_type2 = v; }
1745
1746   void
1747   put_r_type3(unsigned char v)
1748   { this->p_->r_type3 = v; }
1749
1750  private:
1751   internal::Mips64_rel_data* p_;
1752 };
1753
1754 template<bool big_endian>
1755 class Mips64_rela
1756 {
1757  public:
1758   Mips64_rela(const unsigned char* p)
1759     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(p))
1760   { }
1761
1762   template<typename File>
1763   Mips64_rela(File* file, typename File::Location loc)
1764     : p_(reinterpret_cast<const internal::Mips64_rela_data*>(
1765            file->view(loc.file_offset, loc.data_size).data()))
1766   { }
1767
1768   typename Elf_types<64>::Elf_Addr
1769   get_r_offset() const
1770   { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
1771
1772   Elf_Word
1773   get_r_sym() const
1774   { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
1775
1776   unsigned char
1777   get_r_ssym() const
1778   { return this->p_->r_ssym; }
1779
1780   unsigned char
1781   get_r_type() const
1782   { return this->p_->r_type; }
1783
1784   unsigned char
1785   get_r_type2() const
1786   { return this->p_->r_type2; }
1787
1788   unsigned char
1789   get_r_type3() const
1790   { return this->p_->r_type3; }
1791
1792   typename Elf_types<64>::Elf_Swxword
1793   get_r_addend() const
1794   { return Convert<64, big_endian>::convert_host(this->p_->r_addend); }
1795
1796  private:
1797   const internal::Mips64_rela_data* p_;
1798 };
1799
1800 template<bool big_endian>
1801 class Mips64_rela_write
1802 {
1803  public:
1804   Mips64_rela_write(unsigned char* p)
1805     : p_(reinterpret_cast<internal::Mips64_rela_data*>(p))
1806   { }
1807
1808   void
1809   put_r_offset(typename Elf_types<64>::Elf_Addr v)
1810   { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
1811
1812   void
1813   put_r_sym(Elf_Word v)
1814   { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
1815
1816   void
1817   put_r_ssym(unsigned char v)
1818   { this->p_->r_ssym = v; }
1819
1820   void
1821   put_r_type(unsigned char v)
1822   { this->p_->r_type = v; }
1823
1824   void
1825   put_r_type2(unsigned char v)
1826   { this->p_->r_type2 = v; }
1827
1828   void
1829   put_r_type3(unsigned char v)
1830   { this->p_->r_type3 = v; }
1831
1832   void
1833   put_r_addend(typename Elf_types<64>::Elf_Swxword v)
1834   { this->p_->r_addend = Convert<64, big_endian>::convert_host(v); }
1835
1836  private:
1837   internal::Mips64_rela_data* p_;
1838 };
1839
1840 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1841 // PT_DYNAMIC segment.
1842
1843 template<int size, bool big_endian>
1844 class Dyn
1845 {
1846  public:
1847   Dyn(const unsigned char* p)
1848     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1849   { }
1850
1851   template<typename File>
1852   Dyn(File* file, typename File::Location loc)
1853     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1854            file->view(loc.file_offset, loc.data_size).data()))
1855   { }
1856
1857   typename Elf_types<size>::Elf_Swxword
1858   get_d_tag() const
1859   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1860
1861   typename Elf_types<size>::Elf_WXword
1862   get_d_val() const
1863   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1864
1865   typename Elf_types<size>::Elf_Addr
1866   get_d_ptr() const
1867   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1868
1869  private:
1870   const internal::Dyn_data<size>* p_;
1871 };
1872
1873 // Write class for an entry in the SHT_DYNAMIC section.
1874
1875 template<int size, bool big_endian>
1876 class Dyn_write
1877 {
1878  public:
1879   Dyn_write(unsigned char* p)
1880     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1881   { }
1882
1883   void
1884   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1885   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1886
1887   void
1888   put_d_val(typename Elf_types<size>::Elf_WXword v)
1889   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1890
1891   void
1892   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1893   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1894
1895  private:
1896   internal::Dyn_data<size>* p_;
1897 };
1898
1899 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1900
1901 template<int size, bool big_endian>
1902 class Verdef
1903 {
1904  public:
1905   Verdef(const unsigned char* p)
1906     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1907   { }
1908
1909   template<typename File>
1910   Verdef(File* file, typename File::Location loc)
1911     : p_(reinterpret_cast<const internal::Verdef_data*>(
1912            file->view(loc.file_offset, loc.data_size).data()))
1913   { }
1914
1915   Elf_Half
1916   get_vd_version() const
1917   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1918
1919   Elf_Half
1920   get_vd_flags() const
1921   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1922
1923   Elf_Half
1924   get_vd_ndx() const
1925   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1926
1927   Elf_Half
1928   get_vd_cnt() const
1929   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1930
1931   Elf_Word
1932   get_vd_hash() const
1933   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1934
1935   Elf_Word
1936   get_vd_aux() const
1937   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1938
1939   Elf_Word
1940   get_vd_next() const
1941   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1942
1943  private:
1944   const internal::Verdef_data* p_;
1945 };
1946
1947 template<int size, bool big_endian>
1948 class Verdef_write
1949 {
1950  public:
1951   Verdef_write(unsigned char* p)
1952     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1953   { }
1954
1955   void
1956   set_vd_version(Elf_Half v)
1957   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1958
1959   void
1960   set_vd_flags(Elf_Half v)
1961   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1962
1963   void
1964   set_vd_ndx(Elf_Half v)
1965   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1966
1967   void
1968   set_vd_cnt(Elf_Half v)
1969   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1970
1971   void
1972   set_vd_hash(Elf_Word v)
1973   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1974
1975   void
1976   set_vd_aux(Elf_Word v)
1977   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1978
1979   void
1980   set_vd_next(Elf_Word v)
1981   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1982
1983  private:
1984   internal::Verdef_data* p_;
1985 };
1986
1987 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1988 // section.
1989
1990 template<int size, bool big_endian>
1991 class Verdaux
1992 {
1993  public:
1994   Verdaux(const unsigned char* p)
1995     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1996   { }
1997
1998   template<typename File>
1999   Verdaux(File* file, typename File::Location loc)
2000     : p_(reinterpret_cast<const internal::Verdaux_data*>(
2001            file->view(loc.file_offset, loc.data_size).data()))
2002   { }
2003
2004   Elf_Word
2005   get_vda_name() const
2006   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
2007
2008   Elf_Word
2009   get_vda_next() const
2010   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
2011
2012  private:
2013   const internal::Verdaux_data* p_;
2014 };
2015
2016 template<int size, bool big_endian>
2017 class Verdaux_write
2018 {
2019  public:
2020   Verdaux_write(unsigned char* p)
2021     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
2022   { }
2023
2024   void
2025   set_vda_name(Elf_Word v)
2026   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
2027
2028   void
2029   set_vda_next(Elf_Word v)
2030   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
2031
2032  private:
2033   internal::Verdaux_data* p_;
2034 };
2035
2036 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
2037
2038 template<int size, bool big_endian>
2039 class Verneed
2040 {
2041  public:
2042   Verneed(const unsigned char* p)
2043     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
2044   { }
2045
2046   template<typename File>
2047   Verneed(File* file, typename File::Location loc)
2048     : p_(reinterpret_cast<const internal::Verneed_data*>(
2049            file->view(loc.file_offset, loc.data_size).data()))
2050   { }
2051
2052   Elf_Half
2053   get_vn_version() const
2054   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
2055
2056   Elf_Half
2057   get_vn_cnt() const
2058   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
2059
2060   Elf_Word
2061   get_vn_file() const
2062   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
2063
2064   Elf_Word
2065   get_vn_aux() const
2066   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
2067
2068   Elf_Word
2069   get_vn_next() const
2070   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
2071
2072  private:
2073   const internal::Verneed_data* p_;
2074 };
2075
2076 template<int size, bool big_endian>
2077 class Verneed_write
2078 {
2079  public:
2080   Verneed_write(unsigned char* p)
2081     : p_(reinterpret_cast<internal::Verneed_data*>(p))
2082   { }
2083
2084   void
2085   set_vn_version(Elf_Half v)
2086   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
2087
2088   void
2089   set_vn_cnt(Elf_Half v)
2090   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
2091
2092   void
2093   set_vn_file(Elf_Word v)
2094   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
2095
2096   void
2097   set_vn_aux(Elf_Word v)
2098   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
2099
2100   void
2101   set_vn_next(Elf_Word v)
2102   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
2103
2104  private:
2105   internal::Verneed_data* p_;
2106 };
2107
2108 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
2109 // section.
2110
2111 template<int size, bool big_endian>
2112 class Vernaux
2113 {
2114  public:
2115   Vernaux(const unsigned char* p)
2116     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
2117   { }
2118
2119   template<typename File>
2120   Vernaux(File* file, typename File::Location loc)
2121     : p_(reinterpret_cast<const internal::Vernaux_data*>(
2122            file->view(loc.file_offset, loc.data_size).data()))
2123   { }
2124
2125   Elf_Word
2126   get_vna_hash() const
2127   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
2128
2129   Elf_Half
2130   get_vna_flags() const
2131   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
2132
2133   Elf_Half
2134   get_vna_other() const
2135   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
2136
2137   Elf_Word
2138   get_vna_name() const
2139   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
2140
2141   Elf_Word
2142   get_vna_next() const
2143   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
2144
2145  private:
2146   const internal::Vernaux_data* p_;
2147 };
2148
2149 template<int size, bool big_endian>
2150 class Vernaux_write
2151 {
2152  public:
2153   Vernaux_write(unsigned char* p)
2154     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
2155   { }
2156
2157   void
2158   set_vna_hash(Elf_Word v)
2159   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
2160
2161   void
2162   set_vna_flags(Elf_Half v)
2163   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
2164
2165   void
2166   set_vna_other(Elf_Half v)
2167   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
2168
2169   void
2170   set_vna_name(Elf_Word v)
2171   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
2172
2173   void
2174   set_vna_next(Elf_Word v)
2175   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
2176
2177  private:
2178   internal::Vernaux_data* p_;
2179 };
2180
2181 } // End namespace elfcpp.
2182
2183 #endif // !defined(ELFPCP_H)