elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright 2006, 2007, 2008, 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_LINUX is not listed in the ELF standard.
 133   ELFOSABI_LINUX = 3,
 134   // ELFOSABI_HURD is not listed in the ELF standard.
 135   ELFOSABI_HURD = 4,
 136   ELFOSABI_SOLARIS = 6,
 137   ELFOSABI_AIX = 7,
 138   ELFOSABI_IRIX = 8,
 139   ELFOSABI_FREEBSD = 9,
 140   ELFOSABI_TRU64 = 10,
 141   ELFOSABI_MODESTO = 11,
 142   ELFOSABI_OPENBSD = 12,
 143   ELFOSABI_OPENVMS = 13,
 144   ELFOSABI_NSK = 14,
 145   ELFOSABI_AROS = 15,
 146   // A GNU extension for the ARM.
 147   ELFOSABI_ARM = 97,
 148   // A GNU extension for the MSP.
 149   ELFOSABI_STANDALONE = 255
 150 };
 151
 152 // The valid values found in the Ehdr e_type field.
 153
 154 enum ET
 155 {
 156   ET_NONE = 0,
 157   ET_REL = 1,
 158   ET_EXEC = 2,
 159   ET_DYN = 3,
 160   ET_CORE = 4,
 161   ET_LOOS = 0xfe00,
 162   ET_HIOS = 0xfeff,
 163   ET_LOPROC = 0xff00,
 164   ET_HIPROC = 0xffff
 165 };
 166
 167 // The valid values found in the Ehdr e_machine field.
 168
 169 enum EM
 170 {
 171   EM_NONE = 0,
 172   EM_M32 = 1,
 173   EM_SPARC = 2,
 174   EM_386 = 3,
 175   EM_68K = 4,
 176   EM_88K = 5,
 177   // 6 used to be EM_486
 178   EM_860 = 7,
 179   EM_MIPS = 8,
 180   EM_S370 = 9,
 181   EM_MIPS_RS3_LE = 10,
 182   // 11 was the old Sparc V9 ABI.
 183   // 12 through 14 are reserved.
 184   EM_PARISC = 15,
 185   // 16 is reserved.
 186   // Some old PowerPC object files use 17.
 187   EM_VPP500 = 17,
 188   EM_SPARC32PLUS = 18,
 189   EM_960 = 19,
 190   EM_PPC = 20,
 191   EM_PPC64 = 21,
 192   EM_S390 = 22,
 193   // 23 through 35 are served.
 194   EM_V800 = 36,
 195   EM_FR20 = 37,
 196   EM_RH32 = 38,
 197   EM_RCE = 39,
 198   EM_ARM = 40,
 199   EM_ALPHA = 41,
 200   EM_SH = 42,
 201   EM_SPARCV9 = 43,
 202   EM_TRICORE = 44,
 203   EM_ARC = 45,
 204   EM_H8_300 = 46,
 205   EM_H8_300H = 47,
 206   EM_H8S = 48,
 207   EM_H8_500 = 49,
 208   EM_IA_64 = 50,
 209   EM_MIPS_X = 51,
 210   EM_COLDFIRE = 52,
 211   EM_68HC12 = 53,
 212   EM_MMA = 54,
 213   EM_PCP = 55,
 214   EM_NCPU = 56,
 215   EM_NDR1 = 57,
 216   EM_STARCORE = 58,
 217   EM_ME16 = 59,
 218   EM_ST100 = 60,
 219   EM_TINYJ = 61,
 220   EM_X86_64 = 62,
 221   EM_PDSP = 63,
 222   EM_PDP10 = 64,
 223   EM_PDP11 = 65,
 224   EM_FX66 = 66,
 225   EM_ST9PLUS = 67,
 226   EM_ST7 = 68,
 227   EM_68HC16 = 69,
 228   EM_68HC11 = 70,
 229   EM_68HC08 = 71,
 230   EM_68HC05 = 72,
 231   EM_SVX = 73,
 232   EM_ST19 = 74,
 233   EM_VAX = 75,
 234   EM_CRIS = 76,
 235   EM_JAVELIN = 77,
 236   EM_FIREPATH = 78,
 237   EM_ZSP = 79,
 238   EM_MMIX = 80,
 239   EM_HUANY = 81,
 240   EM_PRISM = 82,
 241   EM_AVR = 83,
 242   EM_FR30 = 84,
 243   EM_D10V = 85,
 244   EM_D30V = 86,
 245   EM_V850 = 87,
 246   EM_M32R = 88,
 247   EM_MN10300 = 89,
 248   EM_MN10200 = 90,
 249   EM_PJ = 91,
 250   EM_OPENRISC = 92,
 251   EM_ARC_A5 = 93,
 252   EM_XTENSA = 94,
 253   EM_VIDEOCORE = 95,
 254   EM_TMM_GPP = 96,
 255   EM_NS32K = 97,
 256   EM_TPC = 98,
 257   // Some old picoJava object files use 99 (EM_PJ is correct).
 258   EM_SNP1K = 99,
 259   EM_ST200 = 100,
 260   EM_IP2K = 101,
 261   EM_MAX = 102,
 262   EM_CR = 103,
 263   EM_F2MC16 = 104,
 264   EM_MSP430 = 105,
 265   EM_BLACKFIN = 106,
 266   EM_SE_C33 = 107,
 267   EM_SEP = 108,
 268   EM_ARCA = 109,
 269   EM_UNICORE = 110,
 270   EM_ALTERA_NIOS2 = 113,
 271   EM_CRX = 114,
 272   // The Morph MT.
 273   EM_MT = 0x2530,
 274   // DLX.
 275   EM_DLX = 0x5aa5,
 276   // FRV.
 277   EM_FRV = 0x5441,
 278   // Infineon Technologies 16-bit microcontroller with C166-V2 core.
 279   EM_X16X = 0x4688,
 280   // Xstorym16
 281   EM_XSTORMY16 = 0xad45,
 282   // Renesas M32C
 283   EM_M32C = 0xfeb0,
 284   // Vitesse IQ2000
 285   EM_IQ2000 = 0xfeba,
 286   // NIOS
 287   EM_NIOS32 = 0xfebb
 288   // Old AVR objects used 0x1057 (EM_AVR is correct).
 289   // Old MSP430 objects used 0x1059 (EM_MSP430 is correct).
 290   // Old FR30 objects used 0x3330 (EM_FR30 is correct).
 291   // Old OpenRISC objects used 0x3426 and 0x8472 (EM_OPENRISC is correct).
 292   // Old D10V objects used 0x7650 (EM_D10V is correct).
 293   // Old D30V objects used 0x7676 (EM_D30V is correct).
 294   // Old IP2X objects used 0x8217 (EM_IP2K is correct).
 295   // Old PowerPC objects used 0x9025 (EM_PPC is correct).
 296   // Old Alpha objects used 0x9026 (EM_ALPHA is correct).
 297   // Old M32R objects used 0x9041 (EM_M32R is correct).
 298   // Old V850 objects used 0x9080 (EM_V850 is correct).
 299   // Old S/390 objects used 0xa390 (EM_S390 is correct).
 300   // Old Xtensa objects used 0xabc7 (EM_XTENSA is correct).
 301   // Old MN10300 objects used 0xbeef (EM_MN10300 is correct).
 302   // Old MN10200 objects used 0xdead (EM_MN10200 is correct).
 303 };
 304
 305 // Special section indices.
 306
 307 enum
 308 {
 309   SHN_UNDEF = 0,
 310   SHN_LORESERVE = 0xff00,
 311   SHN_LOPROC = 0xff00,
 312   SHN_HIPROC = 0xff1f,
 313   SHN_LOOS = 0xff20,
 314   SHN_HIOS = 0xff3f,
 315   SHN_ABS = 0xfff1,
 316   SHN_COMMON = 0xfff2,
 317   SHN_XINDEX = 0xffff,
 318   SHN_HIRESERVE = 0xffff,
 319
 320   // Provide for initial and final section ordering in conjunction
 321   // with the SHF_LINK_ORDER and SHF_ORDERED section flags.
 322   SHN_BEFORE = 0xff00,
 323   SHN_AFTER = 0xff01,
 324 };
 325
 326 // The valid values found in the Shdr sh_type field.
 327
 328 enum SHT
 329 {
 330   SHT_NULL = 0,
 331   SHT_PROGBITS = 1,
 332   SHT_SYMTAB = 2,
 333   SHT_STRTAB = 3,
 334   SHT_RELA = 4,
 335   SHT_HASH = 5,
 336   SHT_DYNAMIC = 6,
 337   SHT_NOTE = 7,
 338   SHT_NOBITS = 8,
 339   SHT_REL = 9,
 340   SHT_SHLIB = 10,
 341   SHT_DYNSYM = 11,
 342   SHT_INIT_ARRAY = 14,
 343   SHT_FINI_ARRAY = 15,
 344   SHT_PREINIT_ARRAY = 16,
 345   SHT_GROUP = 17,
 346   SHT_SYMTAB_SHNDX = 18,
 347   SHT_LOOS = 0x60000000,
 348   SHT_HIOS = 0x6fffffff,
 349   SHT_LOPROC = 0x70000000,
 350   SHT_HIPROC = 0x7fffffff,
 351   SHT_LOUSER = 0x80000000,
 352   SHT_HIUSER = 0xffffffff,
 353   // The remaining values are not in the standard.
 354   // Incremental build data.
 355   SHT_GNU_INCREMENTAL_INPUTS = 0x6fff4700,
 356   // Object attributes.
 357   SHT_GNU_ATTRIBUTES = 0x6ffffff5,
 358   // GNU style dynamic hash table.
 359   SHT_GNU_HASH = 0x6ffffff6,
 360   // List of prelink dependencies.
 361   SHT_GNU_LIBLIST = 0x6ffffff7,
 362   // Versions defined by file.
 363   SHT_SUNW_verdef = 0x6ffffffd,
 364   SHT_GNU_verdef = 0x6ffffffd,
 365   // Versions needed by file.
 366   SHT_SUNW_verneed = 0x6ffffffe,
 367   SHT_GNU_verneed = 0x6ffffffe,
 368   // Symbol versions,
 369   SHT_SUNW_versym = 0x6fffffff,
 370   SHT_GNU_versym = 0x6fffffff,
 371
 372   SHT_SPARC_GOTDATA = 0x70000000,
 373
 374   // ARM-specific section types.
 375   // Exception Index table.
 376   SHT_ARM_EXIDX = 0x70000001,
 377   // BPABI DLL dynamic linking pre-emption map.
 378   SHT_ARM_PREEMPTMAP = 0x70000002,
 379   // Object file compatibility attributes.
 380   SHT_ARM_ATTRIBUTES = 0x70000003,
 381   // Support for debugging overlaid programs.
 382   SHT_ARM_DEBUGOVERLAY = 0x70000004,
 383   SHT_ARM_OVERLAYSECTION = 0x70000005,
 384
 385   // Link editor is to sort the entries in this section based on the
 386   // address specified in the associated symbol table entry.
 387   SHT_ORDERED = 0x7fffffff,
 388 };
 389
 390 // The valid bit flags found in the Shdr sh_flags field.
 391
 392 enum SHF
 393 {
 394   SHF_WRITE = 0x1,
 395   SHF_ALLOC = 0x2,
 396   SHF_EXECINSTR = 0x4,
 397   SHF_MERGE = 0x10,
 398   SHF_STRINGS = 0x20,
 399   SHF_INFO_LINK = 0x40,
 400   SHF_LINK_ORDER = 0x80,
 401   SHF_OS_NONCONFORMING = 0x100,
 402   SHF_GROUP = 0x200,
 403   SHF_TLS = 0x400,
 404   SHF_MASKOS = 0x0ff00000,
 405   SHF_MASKPROC = 0xf0000000,
 406
 407   // Indicates this section requires ordering in relation to
 408   // other sections of the same type.  Ordered sections are
 409   // combined within the section pointed to by the sh_link entry.
 410   // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
 411   // sorted section is to precede or follow, respectively, all
 412   // other sections in the set being ordered.
 413   SHF_ORDERED = 0x40000000,
 414   // This section is excluded from input to the link-edit of an
 415   // executable or shared object.  This flag is ignored if SHF_ALLOC
 416   // is also set, or if relocations exist against the section.
 417   SHF_EXCLUDE = 0x80000000,
 418 };
 419
 420 // Bit flags which appear in the first 32-bit word of the section data
 421 // of a SHT_GROUP section.
 422
 423 enum
 424 {
 425   GRP_COMDAT = 0x1,
 426   GRP_MASKOS = 0x0ff00000,
 427   GRP_MASKPROC = 0xf0000000
 428 };
 429
 430 // The valid values found in the Phdr p_type field.
 431
 432 enum PT
 433 {
 434   PT_NULL = 0,
 435   PT_LOAD = 1,
 436   PT_DYNAMIC = 2,
 437   PT_INTERP = 3,
 438   PT_NOTE = 4,
 439   PT_SHLIB = 5,
 440   PT_PHDR = 6,
 441   PT_TLS = 7,
 442   PT_LOOS = 0x60000000,
 443   PT_HIOS = 0x6fffffff,
 444   PT_LOPROC = 0x70000000,
 445   PT_HIPROC = 0x7fffffff,
 446   // The remaining values are not in the standard.
 447   // Frame unwind information.
 448   PT_GNU_EH_FRAME = 0x6474e550,
 449   PT_SUNW_EH_FRAME = 0x6474e550,
 450   // Stack flags.
 451   PT_GNU_STACK = 0x6474e551,
 452   // Read only after relocation.
 453   PT_GNU_RELRO = 0x6474e552,
 454   // Platform architecture compatibility information
 455   PT_ARM_ARCHEXT = 0x70000000,
 456   // Exception unwind tables
 457   PT_ARM_EXIDX = 0x70000001
 458 };
 459
 460 // The valid bit flags found in the Phdr p_flags field.
 461
 462 enum PF
 463 {
 464   PF_X = 0x1,
 465   PF_W = 0x2,
 466   PF_R = 0x4,
 467   PF_MASKOS = 0x0ff00000,
 468   PF_MASKPROC = 0xf0000000
 469 };
 470
 471 // Symbol binding from Sym st_info field.
 472
 473 enum STB
 474 {
 475   STB_LOCAL = 0,
 476   STB_GLOBAL = 1,
 477   STB_WEAK = 2,
 478   STB_LOOS = 10,
 479   STB_HIOS = 12,
 480   STB_LOPROC = 13,
 481   STB_HIPROC = 15
 482 };
 483
 484 // Symbol types from Sym st_info field.
 485
 486 enum STT
 487 {
 488   STT_NOTYPE = 0,
 489   STT_OBJECT = 1,
 490   STT_FUNC = 2,
 491   STT_SECTION = 3,
 492   STT_FILE = 4,
 493   STT_COMMON = 5,
 494   STT_TLS = 6,
 495   STT_LOOS = 10,
 496   STT_GNU_IFUNC = 10,
 497   STT_HIOS = 12,
 498   STT_LOPROC = 13,
 499   STT_HIPROC = 15,
 500
 501   // The section type that must be used for register symbols on
 502   // Sparc.  These symbols initialize a global register.
 503   STT_SPARC_REGISTER = 13,
 504
 505   // ARM: a THUMB function.  This is not defined in ARM ELF Specification but
 506   // used by the GNU tool-chain.
 507   STT_ARM_TFUNC = 13,
 508 };
 509
 510 inline STB
 511 elf_st_bind(unsigned char info)
 512 {
 513   return static_cast<STB>(info >> 4);
 514 }
 515
 516 inline STT
 517 elf_st_type(unsigned char info)
 518 {
 519   return static_cast<STT>(info & 0xf);
 520 }
 521
 522 inline unsigned char
 523 elf_st_info(STB bind, STT type)
 524 {
 525   return ((static_cast<unsigned char>(bind) << 4)
 526           + (static_cast<unsigned char>(type) & 0xf));
 527 }
 528
 529 // Symbol visibility from Sym st_other field.
 530
 531 enum STV
 532 {
 533   STV_DEFAULT = 0,
 534   STV_INTERNAL = 1,
 535   STV_HIDDEN = 2,
 536   STV_PROTECTED = 3
 537 };
 538
 539 inline STV
 540 elf_st_visibility(unsigned char other)
 541 {
 542   return static_cast<STV>(other & 0x3);
 543 }
 544
 545 inline unsigned char
 546 elf_st_nonvis(unsigned char other)
 547 {
 548   return static_cast<STV>(other >> 2);
 549 }
 550
 551 inline unsigned char
 552 elf_st_other(STV vis, unsigned char nonvis)
 553 {
 554   return ((nonvis << 2)
 555           + (static_cast<unsigned char>(vis) & 3));
 556 }
 557
 558 // Reloc information from Rel/Rela r_info field.
 559
 560 template<int size>
 561 unsigned int
 562 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 563
 564 template<>
 565 inline unsigned int
 566 elf_r_sym<32>(Elf_Word v)
 567 {
 568   return v >> 8;
 569 }
 570
 571 template<>
 572 inline unsigned int
 573 elf_r_sym<64>(Elf_Xword v)
 574 {
 575   return v >> 32;
 576 }
 577
 578 template<int size>
 579 unsigned int
 580 elf_r_type(typename Elf_types<size>::Elf_WXword);
 581
 582 template<>
 583 inline unsigned int
 584 elf_r_type<32>(Elf_Word v)
 585 {
 586   return v & 0xff;
 587 }
 588
 589 template<>
 590 inline unsigned int
 591 elf_r_type<64>(Elf_Xword v)
 592 {
 593   return v & 0xffffffff;
 594 }
 595
 596 template<int size>
 597 typename Elf_types<size>::Elf_WXword
 598 elf_r_info(unsigned int s, unsigned int t);
 599
 600 template<>
 601 inline Elf_Word
 602 elf_r_info<32>(unsigned int s, unsigned int t)
 603 {
 604   return (s << 8) + (t & 0xff);
 605 }
 606
 607 template<>
 608 inline Elf_Xword
 609 elf_r_info<64>(unsigned int s, unsigned int t)
 610 {
 611   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 612 }
 613
 614 // Dynamic tags found in the PT_DYNAMIC segment.
 615
 616 enum DT
 617 {
 618   DT_NULL = 0,
 619   DT_NEEDED = 1,
 620   DT_PLTRELSZ = 2,
 621   DT_PLTGOT = 3,
 622   DT_HASH = 4,
 623   DT_STRTAB = 5,
 624   DT_SYMTAB = 6,
 625   DT_RELA = 7,
 626   DT_RELASZ = 8,
 627   DT_RELAENT = 9,
 628   DT_STRSZ = 10,
 629   DT_SYMENT = 11,
 630   DT_INIT = 12,
 631   DT_FINI = 13,
 632   DT_SONAME = 14,
 633   DT_RPATH = 15,
 634   DT_SYMBOLIC = 16,
 635   DT_REL = 17,
 636   DT_RELSZ = 18,
 637   DT_RELENT = 19,
 638   DT_PLTREL = 20,
 639   DT_DEBUG = 21,
 640   DT_TEXTREL = 22,
 641   DT_JMPREL = 23,
 642   DT_BIND_NOW = 24,
 643   DT_INIT_ARRAY = 25,
 644   DT_FINI_ARRAY = 26,
 645   DT_INIT_ARRAYSZ = 27,
 646   DT_FINI_ARRAYSZ = 28,
 647   DT_RUNPATH = 29,
 648   DT_FLAGS = 30,
 649   DT_ENCODING = 32,
 650   DT_PREINIT_ARRAY = 33,
 651   DT_PREINIT_ARRAYSZ = 33,
 652   DT_LOOS = 0x6000000d,
 653   DT_HIOS = 0x6ffff000,
 654   DT_LOPROC = 0x70000000,
 655   DT_HIPROC = 0x7fffffff,
 656
 657   // The remaining values are extensions used by GNU or Solaris.
 658   DT_VALRNGLO = 0x6ffffd00,
 659   DT_GNU_PRELINKED = 0x6ffffdf5,
 660   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 661   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 662   DT_CHECKSUM = 0x6ffffdf8,
 663   DT_PLTPADSZ = 0x6ffffdf9,
 664   DT_MOVEENT = 0x6ffffdfa,
 665   DT_MOVESZ = 0x6ffffdfb,
 666   DT_FEATURE = 0x6ffffdfc,
 667   DT_POSFLAG_1 = 0x6ffffdfd,
 668   DT_SYMINSZ = 0x6ffffdfe,
 669   DT_SYMINENT = 0x6ffffdff,
 670   DT_VALRNGHI = 0x6ffffdff,
 671
 672   DT_ADDRRNGLO = 0x6ffffe00,
 673   DT_GNU_HASH = 0x6ffffef5,
 674   DT_TLSDESC_PLT = 0x6ffffef6,
 675   DT_TLSDESC_GOT = 0x6ffffef7,
 676   DT_GNU_CONFLICT = 0x6ffffef8,
 677   DT_GNU_LIBLIST = 0x6ffffef9,
 678   DT_CONFIG = 0x6ffffefa,
 679   DT_DEPAUDIT = 0x6ffffefb,
 680   DT_AUDIT = 0x6ffffefc,
 681   DT_PLTPAD = 0x6ffffefd,
 682   DT_MOVETAB = 0x6ffffefe,
 683   DT_SYMINFO = 0x6ffffeff,
 684   DT_ADDRRNGHI = 0x6ffffeff,
 685
 686   DT_RELACOUNT = 0x6ffffff9,
 687   DT_RELCOUNT = 0x6ffffffa,
 688   DT_FLAGS_1 = 0x6ffffffb,
 689   DT_VERDEF = 0x6ffffffc,
 690   DT_VERDEFNUM = 0x6ffffffd,
 691   DT_VERNEED = 0x6ffffffe,
 692   DT_VERNEEDNUM = 0x6fffffff,
 693
 694   DT_VERSYM = 0x6ffffff0,
 695
 696   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 697   DT_PPC_GOT = 0x70000000,
 698
 699   // Specify the start of the .glink section.
 700   DT_PPC64_GLINK = 0x70000000,
 701
 702   // Specify the start and size of the .opd section.
 703   DT_PPC64_OPD = 0x70000001,
 704   DT_PPC64_OPDSZ = 0x70000002,
 705
 706   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 707   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 708   // symbol in the symbol table.
 709   DT_SPARC_REGISTER = 0x70000001,
 710
 711   DT_AUXILIARY = 0x7ffffffd,
 712   DT_USED = 0x7ffffffe,
 713   DT_FILTER = 0x7fffffff
 714 };
 715
 716 // Flags found in the DT_FLAGS dynamic element.
 717
 718 enum DF
 719 {
 720   DF_ORIGIN = 0x1,
 721   DF_SYMBOLIC = 0x2,
 722   DF_TEXTREL = 0x4,
 723   DF_BIND_NOW = 0x8,
 724   DF_STATIC_TLS = 0x10
 725 };
 726
 727 // Flags found in the DT_FLAGS_1 dynamic element.
 728
 729 enum DF_1
 730 {
 731   DF_1_NOW = 0x1,
 732   DF_1_GLOBAL = 0x2,
 733   DF_1_GROUP = 0x4,
 734   DF_1_NODELETE = 0x8,
 735   DF_1_LOADFLTR = 0x10,
 736   DF_1_INITFIRST = 0x20,
 737   DF_1_NOOPEN = 0x40,
 738   DF_1_ORIGIN = 0x80,
 739   DF_1_DIRECT = 0x100,
 740   DF_1_TRANS = 0x200,
 741   DF_1_INTERPOSE = 0x400,
 742   DF_1_NODEFLIB = 0x800,
 743   DF_1_NODUMP = 0x1000,
 744   DF_1_CONLFAT = 0x2000,
 745 };
 746
 747 // Version numbers which appear in the vd_version field of a Verdef
 748 // structure.
 749
 750 const int VER_DEF_NONE = 0;
 751 const int VER_DEF_CURRENT = 1;
 752
 753 // Version numbers which appear in the vn_version field of a Verneed
 754 // structure.
 755
 756 const int VER_NEED_NONE = 0;
 757 const int VER_NEED_CURRENT = 1;
 758
 759 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 760 // Vernaux.
 761
 762 const int VER_FLG_BASE = 0x1;
 763 const int VER_FLG_WEAK = 0x2;
 764
 765 // Special constants found in the SHT_GNU_versym entries.
 766
 767 const int VER_NDX_LOCAL = 0;
 768 const int VER_NDX_GLOBAL = 1;
 769
 770 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 771 // the symbol is hidden and can only be seen when referenced using an
 772 // explicit version number.  This is a GNU extension.
 773
 774 const int VERSYM_HIDDEN = 0x8000;
 775
 776 // This is the mask for the rest of the data in a word read from a
 777 // SHT_GNU_versym section.
 778
 779 const int VERSYM_VERSION = 0x7fff;
 780
 781 // Note descriptor type codes for notes in a non-core file with an
 782 // empty name.
 783
 784 enum
 785 {
 786   // A version string.
 787   NT_VERSION = 1,
 788   // An architecture string.
 789   NT_ARCH = 2
 790 };
 791
 792 // Note descriptor type codes for notes in a non-core file with the
 793 // name "GNU".
 794
 795 enum
 796 {
 797   // The minimum ABI level.  This is used by the dynamic linker to
 798   // describe the minimal kernel version on which a shared library may
 799   // be used.  Th value should be four words.  Word 0 is an OS
 800   // descriptor (see below).  Word 1 is the major version of the ABI.
 801   // Word 2 is the minor version.  Word 3 is the subminor version.
 802   NT_GNU_ABI_TAG = 1,
 803   // Hardware capabilities information.  Word 0 is the number of
 804   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 805   // the descriptor is a series of entries, where each entry is a
 806   // single byte followed by a nul terminated string.  The byte gives
 807   // the bit number to test if enabled in the bitmask.
 808   NT_GNU_HWCAP = 2,
 809   // The build ID as set by the linker's --build-id option.  The
 810   // format of the descriptor depends on the build ID style.
 811   NT_GNU_BUILD_ID = 3,
 812   // The version of gold used to link.  Th descriptor is just a
 813   // string.
 814   NT_GNU_GOLD_VERSION = 4
 815 };
 816
 817 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 818
 819 enum
 820 {
 821   ELF_NOTE_OS_LINUX = 0,
 822   ELF_NOTE_OS_GNU = 1,
 823   ELF_NOTE_OS_SOLARIS2 = 2,
 824   ELF_NOTE_OS_FREEBSD = 3,
 825   ELF_NOTE_OS_NETBSD = 4,
 826   ELF_NOTE_OS_SYLLABLE = 5
 827 };
 828
 829 } // End namespace elfcpp.
 830
 831 // Include internal details after defining the types.
 832 #include "elfcpp_internal.h"
 833
 834 namespace elfcpp
 835 {
 836
 837 // The offset of the ELF file header in the ELF file.
 838
 839 const int file_header_offset = 0;
 840
 841 // ELF structure sizes.
 842
 843 template<int size>
 844 struct Elf_sizes
 845 {
 846   // Size of ELF file header.
 847   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
 848   // Size of ELF segment header.
 849   static const int phdr_size = sizeof(internal::Phdr_data<size>);
 850   // Size of ELF section header.
 851   static const int shdr_size = sizeof(internal::Shdr_data<size>);
 852   // Size of ELF symbol table entry.
 853   static const int sym_size = sizeof(internal::Sym_data<size>);
 854   // Sizes of ELF reloc entries.
 855   static const int rel_size = sizeof(internal::Rel_data<size>);
 856   static const int rela_size = sizeof(internal::Rela_data<size>);
 857   // Size of ELF dynamic entry.
 858   static const int dyn_size = sizeof(internal::Dyn_data<size>);
 859   // Size of ELF version structures.
 860   static const int verdef_size = sizeof(internal::Verdef_data);
 861   static const int verdaux_size = sizeof(internal::Verdaux_data);
 862   static const int verneed_size = sizeof(internal::Verneed_data);
 863   static const int vernaux_size = sizeof(internal::Vernaux_data);
 864 };
 865
 866 // Accessor class for the ELF file header.
 867
 868 template<int size, bool big_endian>
 869 class Ehdr
 870 {
 871  public:
 872   Ehdr(const unsigned char* p)
 873     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
 874   { }
 875
 876   template<typename File>
 877   Ehdr(File* file, typename File::Location loc)
 878     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
 879            file->view(loc.file_offset, loc.data_size).data()))
 880   { }
 881
 882   const unsigned char*
 883   get_e_ident() const
 884   { return this->p_->e_ident; }
 885
 886   Elf_Half
 887   get_e_type() const
 888   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
 889
 890   Elf_Half
 891   get_e_machine() const
 892   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
 893
 894   Elf_Word
 895   get_e_version() const
 896   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
 897
 898   typename Elf_types<size>::Elf_Addr
 899   get_e_entry() const
 900   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
 901
 902   typename Elf_types<size>::Elf_Off
 903   get_e_phoff() const
 904   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
 905
 906   typename Elf_types<size>::Elf_Off
 907   get_e_shoff() const
 908   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
 909
 910   Elf_Word
 911   get_e_flags() const
 912   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
 913
 914   Elf_Half
 915   get_e_ehsize() const
 916   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
 917
 918   Elf_Half
 919   get_e_phentsize() const
 920   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
 921
 922   Elf_Half
 923   get_e_phnum() const
 924   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
 925
 926   Elf_Half
 927   get_e_shentsize() const
 928   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
 929
 930   Elf_Half
 931   get_e_shnum() const
 932   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
 933
 934   Elf_Half
 935   get_e_shstrndx() const
 936   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
 937
 938  private:
 939   const internal::Ehdr_data<size>* p_;
 940 };
 941
 942 // Write class for the ELF file header.
 943
 944 template<int size, bool big_endian>
 945 class Ehdr_write
 946 {
 947  public:
 948   Ehdr_write(unsigned char* p)
 949     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
 950   { }
 951
 952   void
 953   put_e_ident(const unsigned char v[EI_NIDENT]) const
 954   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
 955
 956   void
 957   put_e_type(Elf_Half v)
 958   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
 959
 960   void
 961   put_e_machine(Elf_Half v)
 962   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
 963
 964   void
 965   put_e_version(Elf_Word v)
 966   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
 967
 968   void
 969   put_e_entry(typename Elf_types<size>::Elf_Addr v)
 970   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
 971
 972   void
 973   put_e_phoff(typename Elf_types<size>::Elf_Off v)
 974   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
 975
 976   void
 977   put_e_shoff(typename Elf_types<size>::Elf_Off v)
 978   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
 979
 980   void
 981   put_e_flags(Elf_Word v)
 982   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
 983
 984   void
 985   put_e_ehsize(Elf_Half v)
 986   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
 987
 988   void
 989   put_e_phentsize(Elf_Half v)
 990   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
 991
 992   void
 993   put_e_phnum(Elf_Half v)
 994   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
 995
 996   void
 997   put_e_shentsize(Elf_Half v)
 998   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
 999
1000   void
1001   put_e_shnum(Elf_Half v)
1002   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
1003
1004   void
1005   put_e_shstrndx(Elf_Half v)
1006   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
1007
1008  private:
1009   internal::Ehdr_data<size>* p_;
1010 };
1011
1012 // Accessor class for an ELF section header.
1013
1014 template<int size, bool big_endian>
1015 class Shdr
1016 {
1017  public:
1018   Shdr(const unsigned char* p)
1019     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
1020   { }
1021
1022   template<typename File>
1023   Shdr(File* file, typename File::Location loc)
1024     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1025            file->view(loc.file_offset, loc.data_size).data()))
1026   { }
1027
1028   Elf_Word
1029   get_sh_name() const
1030   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1031
1032   Elf_Word
1033   get_sh_type() const
1034   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1035
1036   typename Elf_types<size>::Elf_WXword
1037   get_sh_flags() const
1038   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1039
1040   typename Elf_types<size>::Elf_Addr
1041   get_sh_addr() const
1042   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1043
1044   typename Elf_types<size>::Elf_Off
1045   get_sh_offset() const
1046   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1047
1048   typename Elf_types<size>::Elf_WXword
1049   get_sh_size() const
1050   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1051
1052   Elf_Word
1053   get_sh_link() const
1054   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1055
1056   Elf_Word
1057   get_sh_info() const
1058   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1059
1060   typename Elf_types<size>::Elf_WXword
1061   get_sh_addralign() const
1062   { return
1063       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1064
1065   typename Elf_types<size>::Elf_WXword
1066   get_sh_entsize() const
1067   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1068
1069  private:
1070   const internal::Shdr_data<size>* p_;
1071 };
1072
1073 // Write class for an ELF section header.
1074
1075 template<int size, bool big_endian>
1076 class Shdr_write
1077 {
1078  public:
1079   Shdr_write(unsigned char* p)
1080     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1081   { }
1082
1083   void
1084   put_sh_name(Elf_Word v)
1085   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1086
1087   void
1088   put_sh_type(Elf_Word v)
1089   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1090
1091   void
1092   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1093   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1094
1095   void
1096   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1097   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1098
1099   void
1100   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1101   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1102
1103   void
1104   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1105   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1106
1107   void
1108   put_sh_link(Elf_Word v)
1109   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1110
1111   void
1112   put_sh_info(Elf_Word v)
1113   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1114
1115   void
1116   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1117   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1118
1119   void
1120   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1121   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1122
1123  private:
1124   internal::Shdr_data<size>* p_;
1125 };
1126
1127 // Accessor class for an ELF segment header.
1128
1129 template<int size, bool big_endian>
1130 class Phdr
1131 {
1132  public:
1133   Phdr(const unsigned char* p)
1134     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1135   { }
1136
1137   template<typename File>
1138   Phdr(File* file, typename File::Location loc)
1139     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1140            file->view(loc.file_offset, loc.data_size).data()))
1141   { }
1142
1143   Elf_Word
1144   get_p_type() const
1145   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1146
1147   typename Elf_types<size>::Elf_Off
1148   get_p_offset() const
1149   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1150
1151   typename Elf_types<size>::Elf_Addr
1152   get_p_vaddr() const
1153   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1154
1155   typename Elf_types<size>::Elf_Addr
1156   get_p_paddr() const
1157   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1158
1159   typename Elf_types<size>::Elf_WXword
1160   get_p_filesz() const
1161   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1162
1163   typename Elf_types<size>::Elf_WXword
1164   get_p_memsz() const
1165   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1166
1167   Elf_Word
1168   get_p_flags() const
1169   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1170
1171   typename Elf_types<size>::Elf_WXword
1172   get_p_align() const
1173   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1174
1175  private:
1176   const internal::Phdr_data<size>* p_;
1177 };
1178
1179 // Write class for an ELF segment header.
1180
1181 template<int size, bool big_endian>
1182 class Phdr_write
1183 {
1184  public:
1185   Phdr_write(unsigned char* p)
1186     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1187   { }
1188
1189   void
1190   put_p_type(Elf_Word v)
1191   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1192
1193   void
1194   put_p_offset(typename Elf_types<size>::Elf_Off v)
1195   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1196
1197   void
1198   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1199   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1200
1201   void
1202   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1203   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1204
1205   void
1206   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1207   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1208
1209   void
1210   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1211   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1212
1213   void
1214   put_p_flags(Elf_Word v)
1215   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1216
1217   void
1218   put_p_align(typename Elf_types<size>::Elf_WXword v)
1219   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1220
1221  private:
1222   internal::Phdr_data<size>* p_;
1223 };
1224
1225 // Accessor class for an ELF symbol table entry.
1226
1227 template<int size, bool big_endian>
1228 class Sym
1229 {
1230  public:
1231   Sym(const unsigned char* p)
1232     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1233   { }
1234
1235   template<typename File>
1236   Sym(File* file, typename File::Location loc)
1237     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1238            file->view(loc.file_offset, loc.data_size).data()))
1239   { }
1240
1241   Elf_Word
1242   get_st_name() const
1243   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1244
1245   typename Elf_types<size>::Elf_Addr
1246   get_st_value() const
1247   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1248
1249   typename Elf_types<size>::Elf_WXword
1250   get_st_size() const
1251   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1252
1253   unsigned char
1254   get_st_info() const
1255   { return this->p_->st_info; }
1256
1257   STB
1258   get_st_bind() const
1259   { return elf_st_bind(this->get_st_info()); }
1260
1261   STT
1262   get_st_type() const
1263   { return elf_st_type(this->get_st_info()); }
1264
1265   unsigned char
1266   get_st_other() const
1267   { return this->p_->st_other; }
1268
1269   STV
1270   get_st_visibility() const
1271   { return elf_st_visibility(this->get_st_other()); }
1272
1273   unsigned char
1274   get_st_nonvis() const
1275   { return elf_st_nonvis(this->get_st_other()); }
1276
1277   Elf_Half
1278   get_st_shndx() const
1279   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1280
1281  private:
1282   const internal::Sym_data<size>* p_;
1283 };
1284
1285 // Writer class for an ELF symbol table entry.
1286
1287 template<int size, bool big_endian>
1288 class Sym_write
1289 {
1290  public:
1291   Sym_write(unsigned char* p)
1292     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1293   { }
1294
1295   void
1296   put_st_name(Elf_Word v)
1297   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1298
1299   void
1300   put_st_value(typename Elf_types<size>::Elf_Addr v)
1301   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1302
1303   void
1304   put_st_size(typename Elf_types<size>::Elf_WXword v)
1305   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1306
1307   void
1308   put_st_info(unsigned char v)
1309   { this->p_->st_info = v; }
1310
1311   void
1312   put_st_info(STB bind, STT type)
1313   { this->p_->st_info = elf_st_info(bind, type); }
1314
1315   void
1316   put_st_other(unsigned char v)
1317   { this->p_->st_other = v; }
1318
1319   void
1320   put_st_other(STV vis, unsigned char nonvis)
1321   { this->p_->st_other = elf_st_other(vis, nonvis); }
1322
1323   void
1324   put_st_shndx(Elf_Half v)
1325   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1326
1327   Sym<size, big_endian>
1328   sym()
1329   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1330
1331  private:
1332   internal::Sym_data<size>* p_;
1333 };
1334
1335 // Accessor classes for an ELF REL relocation entry.
1336
1337 template<int size, bool big_endian>
1338 class Rel
1339 {
1340  public:
1341   Rel(const unsigned char* p)
1342     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1343   { }
1344
1345   template<typename File>
1346   Rel(File* file, typename File::Location loc)
1347     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1348            file->view(loc.file_offset, loc.data_size).data()))
1349   { }
1350
1351   typename Elf_types<size>::Elf_Addr
1352   get_r_offset() const
1353   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1354
1355   typename Elf_types<size>::Elf_WXword
1356   get_r_info() const
1357   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1358
1359  private:
1360   const internal::Rel_data<size>* p_;
1361 };
1362
1363 // Writer class for an ELF Rel relocation.
1364
1365 template<int size, bool big_endian>
1366 class Rel_write
1367 {
1368  public:
1369   Rel_write(unsigned char* p)
1370     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1371   { }
1372
1373   void
1374   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1375   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1376
1377   void
1378   put_r_info(typename Elf_types<size>::Elf_WXword v)
1379   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1380
1381  private:
1382   internal::Rel_data<size>* p_;
1383 };
1384
1385 // Accessor class for an ELF Rela relocation.
1386
1387 template<int size, bool big_endian>
1388 class Rela
1389 {
1390  public:
1391   Rela(const unsigned char* p)
1392     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1393   { }
1394
1395   template<typename File>
1396   Rela(File* file, typename File::Location loc)
1397     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1398            file->view(loc.file_offset, loc.data_size).data()))
1399   { }
1400
1401   typename Elf_types<size>::Elf_Addr
1402   get_r_offset() const
1403   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1404
1405   typename Elf_types<size>::Elf_WXword
1406   get_r_info() const
1407   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1408
1409   typename Elf_types<size>::Elf_Swxword
1410   get_r_addend() const
1411   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1412
1413  private:
1414   const internal::Rela_data<size>* p_;
1415 };
1416
1417 // Writer class for an ELF Rela relocation.
1418
1419 template<int size, bool big_endian>
1420 class Rela_write
1421 {
1422  public:
1423   Rela_write(unsigned char* p)
1424     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1425   { }
1426
1427   void
1428   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1429   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1430
1431   void
1432   put_r_info(typename Elf_types<size>::Elf_WXword v)
1433   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1434
1435   void
1436   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1437   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1438
1439  private:
1440   internal::Rela_data<size>* p_;
1441 };
1442
1443 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1444 // PT_DYNAMIC segment.
1445
1446 template<int size, bool big_endian>
1447 class Dyn
1448 {
1449  public:
1450   Dyn(const unsigned char* p)
1451     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1452   { }
1453
1454   template<typename File>
1455   Dyn(File* file, typename File::Location loc)
1456     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1457            file->view(loc.file_offset, loc.data_size).data()))
1458   { }
1459
1460   typename Elf_types<size>::Elf_Swxword
1461   get_d_tag() const
1462   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1463
1464   typename Elf_types<size>::Elf_WXword
1465   get_d_val() const
1466   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1467
1468   typename Elf_types<size>::Elf_Addr
1469   get_d_ptr() const
1470   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1471
1472  private:
1473   const internal::Dyn_data<size>* p_;
1474 };
1475
1476 // Write class for an entry in the SHT_DYNAMIC section.
1477
1478 template<int size, bool big_endian>
1479 class Dyn_write
1480 {
1481  public:
1482   Dyn_write(unsigned char* p)
1483     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1484   { }
1485
1486   void
1487   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1488   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1489
1490   void
1491   put_d_val(typename Elf_types<size>::Elf_WXword v)
1492   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1493
1494   void
1495   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1496   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1497
1498  private:
1499   internal::Dyn_data<size>* p_;
1500 };
1501
1502 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1503
1504 template<int size, bool big_endian>
1505 class Verdef
1506 {
1507  public:
1508   Verdef(const unsigned char* p)
1509     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1510   { }
1511
1512   template<typename File>
1513   Verdef(File* file, typename File::Location loc)
1514     : p_(reinterpret_cast<const internal::Verdef_data*>(
1515            file->view(loc.file_offset, loc.data_size).data()))
1516   { }
1517
1518   Elf_Half
1519   get_vd_version() const
1520   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1521
1522   Elf_Half
1523   get_vd_flags() const
1524   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1525
1526   Elf_Half
1527   get_vd_ndx() const
1528   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1529
1530   Elf_Half
1531   get_vd_cnt() const
1532   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1533
1534   Elf_Word
1535   get_vd_hash() const
1536   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1537
1538   Elf_Word
1539   get_vd_aux() const
1540   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1541
1542   Elf_Word
1543   get_vd_next() const
1544   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1545
1546  private:
1547   const internal::Verdef_data* p_;
1548 };
1549
1550 template<int size, bool big_endian>
1551 class Verdef_write
1552 {
1553  public:
1554   Verdef_write(unsigned char* p)
1555     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1556   { }
1557
1558   void
1559   set_vd_version(Elf_Half v)
1560   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1561
1562   void
1563   set_vd_flags(Elf_Half v)
1564   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1565
1566   void
1567   set_vd_ndx(Elf_Half v)
1568   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1569
1570   void
1571   set_vd_cnt(Elf_Half v)
1572   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1573
1574   void
1575   set_vd_hash(Elf_Word v)
1576   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1577
1578   void
1579   set_vd_aux(Elf_Word v)
1580   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1581
1582   void
1583   set_vd_next(Elf_Word v)
1584   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1585
1586  private:
1587   internal::Verdef_data* p_;
1588 };
1589
1590 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1591 // section.
1592
1593 template<int size, bool big_endian>
1594 class Verdaux
1595 {
1596  public:
1597   Verdaux(const unsigned char* p)
1598     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1599   { }
1600
1601   template<typename File>
1602   Verdaux(File* file, typename File::Location loc)
1603     : p_(reinterpret_cast<const internal::Verdaux_data*>(
1604            file->view(loc.file_offset, loc.data_size).data()))
1605   { }
1606
1607   Elf_Word
1608   get_vda_name() const
1609   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
1610
1611   Elf_Word
1612   get_vda_next() const
1613   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
1614
1615  private:
1616   const internal::Verdaux_data* p_;
1617 };
1618
1619 template<int size, bool big_endian>
1620 class Verdaux_write
1621 {
1622  public:
1623   Verdaux_write(unsigned char* p)
1624     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
1625   { }
1626
1627   void
1628   set_vda_name(Elf_Word v)
1629   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
1630
1631   void
1632   set_vda_next(Elf_Word v)
1633   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
1634
1635  private:
1636   internal::Verdaux_data* p_;
1637 };
1638
1639 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
1640
1641 template<int size, bool big_endian>
1642 class Verneed
1643 {
1644  public:
1645   Verneed(const unsigned char* p)
1646     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
1647   { }
1648
1649   template<typename File>
1650   Verneed(File* file, typename File::Location loc)
1651     : p_(reinterpret_cast<const internal::Verneed_data*>(
1652            file->view(loc.file_offset, loc.data_size).data()))
1653   { }
1654
1655   Elf_Half
1656   get_vn_version() const
1657   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
1658
1659   Elf_Half
1660   get_vn_cnt() const
1661   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
1662
1663   Elf_Word
1664   get_vn_file() const
1665   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
1666
1667   Elf_Word
1668   get_vn_aux() const
1669   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
1670
1671   Elf_Word
1672   get_vn_next() const
1673   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
1674
1675  private:
1676   const internal::Verneed_data* p_;
1677 };
1678
1679 template<int size, bool big_endian>
1680 class Verneed_write
1681 {
1682  public:
1683   Verneed_write(unsigned char* p)
1684     : p_(reinterpret_cast<internal::Verneed_data*>(p))
1685   { }
1686
1687   void
1688   set_vn_version(Elf_Half v)
1689   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
1690
1691   void
1692   set_vn_cnt(Elf_Half v)
1693   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
1694
1695   void
1696   set_vn_file(Elf_Word v)
1697   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
1698
1699   void
1700   set_vn_aux(Elf_Word v)
1701   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
1702
1703   void
1704   set_vn_next(Elf_Word v)
1705   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
1706
1707  private:
1708   internal::Verneed_data* p_;
1709 };
1710
1711 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
1712 // section.
1713
1714 template<int size, bool big_endian>
1715 class Vernaux
1716 {
1717  public:
1718   Vernaux(const unsigned char* p)
1719     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
1720   { }
1721
1722   template<typename File>
1723   Vernaux(File* file, typename File::Location loc)
1724     : p_(reinterpret_cast<const internal::Vernaux_data*>(
1725            file->view(loc.file_offset, loc.data_size).data()))
1726   { }
1727
1728   Elf_Word
1729   get_vna_hash() const
1730   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
1731
1732   Elf_Half
1733   get_vna_flags() const
1734   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
1735
1736   Elf_Half
1737   get_vna_other() const
1738   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
1739
1740   Elf_Word
1741   get_vna_name() const
1742   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
1743
1744   Elf_Word
1745   get_vna_next() const
1746   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
1747
1748  private:
1749   const internal::Vernaux_data* p_;
1750 };
1751
1752 template<int size, bool big_endian>
1753 class Vernaux_write
1754 {
1755  public:
1756   Vernaux_write(unsigned char* p)
1757     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
1758   { }
1759
1760   void
1761   set_vna_hash(Elf_Word v)
1762   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
1763
1764   void
1765   set_vna_flags(Elf_Half v)
1766   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
1767
1768   void
1769   set_vna_other(Elf_Half v)
1770   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
1771
1772   void
1773   set_vna_name(Elf_Word v)
1774   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
1775
1776   void
1777   set_vna_next(Elf_Word v)
1778   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
1779
1780  private:
1781   internal::Vernaux_data* p_;
1782 };
1783
1784 } // End namespace elfcpp.
1785
1786 #endif // !defined(ELFPCP_H)