elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // Copyright 2006, 2007, 2008, 2009, 2010 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   // 6 used to be EM_486
 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_OPENRISC = 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   // The Morph MT.
 272   EM_MT = 0x2530,
 273   // DLX.
 274   EM_DLX = 0x5aa5,
 275   // FRV.
 276   EM_FRV = 0x5441,
 277   // Infineon Technologies 16-bit microcontroller with C166-V2 core.
 278   EM_X16X = 0x4688,
 279   // Xstorym16
 280   EM_XSTORMY16 = 0xad45,
 281   // Renesas M32C
 282   EM_M32C = 0xfeb0,
 283   // Vitesse IQ2000
 284   EM_IQ2000 = 0xfeba,
 285   // NIOS
 286   EM_NIOS32 = 0xfebb
 287   // Old AVR objects used 0x1057 (EM_AVR is correct).
 288   // Old MSP430 objects used 0x1059 (EM_MSP430 is correct).
 289   // Old FR30 objects used 0x3330 (EM_FR30 is correct).
 290   // Old OpenRISC objects used 0x3426 and 0x8472 (EM_OPENRISC is correct).
 291   // Old D10V objects used 0x7650 (EM_D10V is correct).
 292   // Old D30V objects used 0x7676 (EM_D30V is correct).
 293   // Old IP2X objects used 0x8217 (EM_IP2K is correct).
 294   // Old PowerPC objects used 0x9025 (EM_PPC is correct).
 295   // Old Alpha objects used 0x9026 (EM_ALPHA is correct).
 296   // Old M32R objects used 0x9041 (EM_M32R is correct).
 297   // Old V850 objects used 0x9080 (EM_V850 is correct).
 298   // Old S/390 objects used 0xa390 (EM_S390 is correct).
 299   // Old Xtensa objects used 0xabc7 (EM_XTENSA is correct).
 300   // Old MN10300 objects used 0xbeef (EM_MN10300 is correct).
 301   // Old MN10200 objects used 0xdead (EM_MN10200 is correct).
 302 };
 303
 304 // A special value found in the Ehdr e_phnum field.
 305
 306 enum
 307 {
 308   // Number of program segments stored in sh_info field of first
 309   // section headre.
 310   PN_XNUM = 0xffff
 311 };
 312
 313 // Special section indices.
 314
 315 enum
 316 {
 317   SHN_UNDEF = 0,
 318   SHN_LORESERVE = 0xff00,
 319   SHN_LOPROC = 0xff00,
 320   SHN_HIPROC = 0xff1f,
 321   SHN_LOOS = 0xff20,
 322   SHN_HIOS = 0xff3f,
 323   SHN_ABS = 0xfff1,
 324   SHN_COMMON = 0xfff2,
 325   SHN_XINDEX = 0xffff,
 326   SHN_HIRESERVE = 0xffff,
 327
 328   // Provide for initial and final section ordering in conjunction
 329   // with the SHF_LINK_ORDER and SHF_ORDERED section flags.
 330   SHN_BEFORE = 0xff00,
 331   SHN_AFTER = 0xff01,
 332
 333   // x86_64 specific large common symbol.
 334   SHN_X86_64_LCOMMON = 0xff02
 335 };
 336
 337 // The valid values found in the Shdr sh_type field.
 338
 339 enum SHT
 340 {
 341   SHT_NULL = 0,
 342   SHT_PROGBITS = 1,
 343   SHT_SYMTAB = 2,
 344   SHT_STRTAB = 3,
 345   SHT_RELA = 4,
 346   SHT_HASH = 5,
 347   SHT_DYNAMIC = 6,
 348   SHT_NOTE = 7,
 349   SHT_NOBITS = 8,
 350   SHT_REL = 9,
 351   SHT_SHLIB = 10,
 352   SHT_DYNSYM = 11,
 353   SHT_INIT_ARRAY = 14,
 354   SHT_FINI_ARRAY = 15,
 355   SHT_PREINIT_ARRAY = 16,
 356   SHT_GROUP = 17,
 357   SHT_SYMTAB_SHNDX = 18,
 358   SHT_LOOS = 0x60000000,
 359   SHT_HIOS = 0x6fffffff,
 360   SHT_LOPROC = 0x70000000,
 361   SHT_HIPROC = 0x7fffffff,
 362   SHT_LOUSER = 0x80000000,
 363   SHT_HIUSER = 0xffffffff,
 364   // The remaining values are not in the standard.
 365   // Incremental build data.
 366   SHT_GNU_INCREMENTAL_INPUTS = 0x6fff4700,
 367   SHT_GNU_INCREMENTAL_SYMTAB = 0x6fff4701,
 368   SHT_GNU_INCREMENTAL_RELOCS = 0x6fff4702,
 369   SHT_GNU_INCREMENTAL_GOT_PLT = 0x6fff4703,
 370   // Object attributes.
 371   SHT_GNU_ATTRIBUTES = 0x6ffffff5,
 372   // GNU style dynamic hash table.
 373   SHT_GNU_HASH = 0x6ffffff6,
 374   // List of prelink dependencies.
 375   SHT_GNU_LIBLIST = 0x6ffffff7,
 376   // Versions defined by file.
 377   SHT_SUNW_verdef = 0x6ffffffd,
 378   SHT_GNU_verdef = 0x6ffffffd,
 379   // Versions needed by file.
 380   SHT_SUNW_verneed = 0x6ffffffe,
 381   SHT_GNU_verneed = 0x6ffffffe,
 382   // Symbol versions,
 383   SHT_SUNW_versym = 0x6fffffff,
 384   SHT_GNU_versym = 0x6fffffff,
 385
 386   SHT_SPARC_GOTDATA = 0x70000000,
 387
 388   // ARM-specific section types.
 389   // Exception Index table.
 390   SHT_ARM_EXIDX = 0x70000001,
 391   // BPABI DLL dynamic linking pre-emption map.
 392   SHT_ARM_PREEMPTMAP = 0x70000002,
 393   // Object file compatibility attributes.
 394   SHT_ARM_ATTRIBUTES = 0x70000003,
 395   // Support for debugging overlaid programs.
 396   SHT_ARM_DEBUGOVERLAY = 0x70000004,
 397   SHT_ARM_OVERLAYSECTION = 0x70000005,
 398
 399   // x86_64 unwind information.
 400   SHT_X86_64_UNWIND = 0x70000001,
 401
 402   // Link editor is to sort the entries in this section based on the
 403   // address specified in the associated symbol table entry.
 404   SHT_ORDERED = 0x7fffffff
 405 };
 406
 407 // The valid bit flags found in the Shdr sh_flags field.
 408
 409 enum SHF
 410 {
 411   SHF_WRITE = 0x1,
 412   SHF_ALLOC = 0x2,
 413   SHF_EXECINSTR = 0x4,
 414   SHF_MERGE = 0x10,
 415   SHF_STRINGS = 0x20,
 416   SHF_INFO_LINK = 0x40,
 417   SHF_LINK_ORDER = 0x80,
 418   SHF_OS_NONCONFORMING = 0x100,
 419   SHF_GROUP = 0x200,
 420   SHF_TLS = 0x400,
 421   SHF_MASKOS = 0x0ff00000,
 422   SHF_MASKPROC = 0xf0000000,
 423
 424   // Indicates this section requires ordering in relation to
 425   // other sections of the same type.  Ordered sections are
 426   // combined within the section pointed to by the sh_link entry.
 427   // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
 428   // sorted section is to precede or follow, respectively, all
 429   // other sections in the set being ordered.
 430   SHF_ORDERED = 0x40000000,
 431   // This section is excluded from input to the link-edit of an
 432   // executable or shared object.  This flag is ignored if SHF_ALLOC
 433   // is also set, or if relocations exist against the section.
 434   SHF_EXCLUDE = 0x80000000,
 435
 436   // x86_64 specific large section.
 437   SHF_X86_64_LARGE = 0x10000000
 438 };
 439
 440 // Bit flags which appear in the first 32-bit word of the section data
 441 // of a SHT_GROUP section.
 442
 443 enum
 444 {
 445   GRP_COMDAT = 0x1,
 446   GRP_MASKOS = 0x0ff00000,
 447   GRP_MASKPROC = 0xf0000000
 448 };
 449
 450 // The valid values found in the Phdr p_type field.
 451
 452 enum PT
 453 {
 454   PT_NULL = 0,
 455   PT_LOAD = 1,
 456   PT_DYNAMIC = 2,
 457   PT_INTERP = 3,
 458   PT_NOTE = 4,
 459   PT_SHLIB = 5,
 460   PT_PHDR = 6,
 461   PT_TLS = 7,
 462   PT_LOOS = 0x60000000,
 463   PT_HIOS = 0x6fffffff,
 464   PT_LOPROC = 0x70000000,
 465   PT_HIPROC = 0x7fffffff,
 466   // The remaining values are not in the standard.
 467   // Frame unwind information.
 468   PT_GNU_EH_FRAME = 0x6474e550,
 469   PT_SUNW_EH_FRAME = 0x6474e550,
 470   // Stack flags.
 471   PT_GNU_STACK = 0x6474e551,
 472   // Read only after relocation.
 473   PT_GNU_RELRO = 0x6474e552,
 474   // Platform architecture compatibility information
 475   PT_ARM_ARCHEXT = 0x70000000,
 476   // Exception unwind tables
 477   PT_ARM_EXIDX = 0x70000001
 478 };
 479
 480 // The valid bit flags found in the Phdr p_flags field.
 481
 482 enum PF
 483 {
 484   PF_X = 0x1,
 485   PF_W = 0x2,
 486   PF_R = 0x4,
 487   PF_MASKOS = 0x0ff00000,
 488   PF_MASKPROC = 0xf0000000
 489 };
 490
 491 // Symbol binding from Sym st_info field.
 492
 493 enum STB
 494 {
 495   STB_LOCAL = 0,
 496   STB_GLOBAL = 1,
 497   STB_WEAK = 2,
 498   STB_LOOS = 10,
 499   STB_GNU_UNIQUE = 10,
 500   STB_HIOS = 12,
 501   STB_LOPROC = 13,
 502   STB_HIPROC = 15
 503 };
 504
 505 // Symbol types from Sym st_info field.
 506
 507 enum STT
 508 {
 509   STT_NOTYPE = 0,
 510   STT_OBJECT = 1,
 511   STT_FUNC = 2,
 512   STT_SECTION = 3,
 513   STT_FILE = 4,
 514   STT_COMMON = 5,
 515   STT_TLS = 6,
 516   STT_LOOS = 10,
 517   STT_GNU_IFUNC = 10,
 518   STT_HIOS = 12,
 519   STT_LOPROC = 13,
 520   STT_HIPROC = 15,
 521
 522   // The section type that must be used for register symbols on
 523   // Sparc.  These symbols initialize a global register.
 524   STT_SPARC_REGISTER = 13,
 525
 526   // ARM: a THUMB function.  This is not defined in ARM ELF Specification but
 527   // used by the GNU tool-chain.
 528   STT_ARM_TFUNC = 13
 529 };
 530
 531 inline STB
 532 elf_st_bind(unsigned char info)
 533 {
 534   return static_cast<STB>(info >> 4);
 535 }
 536
 537 inline STT
 538 elf_st_type(unsigned char info)
 539 {
 540   return static_cast<STT>(info & 0xf);
 541 }
 542
 543 inline unsigned char
 544 elf_st_info(STB bind, STT type)
 545 {
 546   return ((static_cast<unsigned char>(bind) << 4)
 547           + (static_cast<unsigned char>(type) & 0xf));
 548 }
 549
 550 // Symbol visibility from Sym st_other field.
 551
 552 enum STV
 553 {
 554   STV_DEFAULT = 0,
 555   STV_INTERNAL = 1,
 556   STV_HIDDEN = 2,
 557   STV_PROTECTED = 3
 558 };
 559
 560 inline STV
 561 elf_st_visibility(unsigned char other)
 562 {
 563   return static_cast<STV>(other & 0x3);
 564 }
 565
 566 inline unsigned char
 567 elf_st_nonvis(unsigned char other)
 568 {
 569   return static_cast<STV>(other >> 2);
 570 }
 571
 572 inline unsigned char
 573 elf_st_other(STV vis, unsigned char nonvis)
 574 {
 575   return ((nonvis << 2)
 576           + (static_cast<unsigned char>(vis) & 3));
 577 }
 578
 579 // Reloc information from Rel/Rela r_info field.
 580
 581 template<int size>
 582 unsigned int
 583 elf_r_sym(typename Elf_types<size>::Elf_WXword);
 584
 585 template<>
 586 inline unsigned int
 587 elf_r_sym<32>(Elf_Word v)
 588 {
 589   return v >> 8;
 590 }
 591
 592 template<>
 593 inline unsigned int
 594 elf_r_sym<64>(Elf_Xword v)
 595 {
 596   return v >> 32;
 597 }
 598
 599 template<int size>
 600 unsigned int
 601 elf_r_type(typename Elf_types<size>::Elf_WXword);
 602
 603 template<>
 604 inline unsigned int
 605 elf_r_type<32>(Elf_Word v)
 606 {
 607   return v & 0xff;
 608 }
 609
 610 template<>
 611 inline unsigned int
 612 elf_r_type<64>(Elf_Xword v)
 613 {
 614   return v & 0xffffffff;
 615 }
 616
 617 template<int size>
 618 typename Elf_types<size>::Elf_WXword
 619 elf_r_info(unsigned int s, unsigned int t);
 620
 621 template<>
 622 inline Elf_Word
 623 elf_r_info<32>(unsigned int s, unsigned int t)
 624 {
 625   return (s << 8) + (t & 0xff);
 626 }
 627
 628 template<>
 629 inline Elf_Xword
 630 elf_r_info<64>(unsigned int s, unsigned int t)
 631 {
 632   return (static_cast<Elf_Xword>(s) << 32) + (t & 0xffffffff);
 633 }
 634
 635 // Dynamic tags found in the PT_DYNAMIC segment.
 636
 637 enum DT
 638 {
 639   DT_NULL = 0,
 640   DT_NEEDED = 1,
 641   DT_PLTRELSZ = 2,
 642   DT_PLTGOT = 3,
 643   DT_HASH = 4,
 644   DT_STRTAB = 5,
 645   DT_SYMTAB = 6,
 646   DT_RELA = 7,
 647   DT_RELASZ = 8,
 648   DT_RELAENT = 9,
 649   DT_STRSZ = 10,
 650   DT_SYMENT = 11,
 651   DT_INIT = 12,
 652   DT_FINI = 13,
 653   DT_SONAME = 14,
 654   DT_RPATH = 15,
 655   DT_SYMBOLIC = 16,
 656   DT_REL = 17,
 657   DT_RELSZ = 18,
 658   DT_RELENT = 19,
 659   DT_PLTREL = 20,
 660   DT_DEBUG = 21,
 661   DT_TEXTREL = 22,
 662   DT_JMPREL = 23,
 663   DT_BIND_NOW = 24,
 664   DT_INIT_ARRAY = 25,
 665   DT_FINI_ARRAY = 26,
 666   DT_INIT_ARRAYSZ = 27,
 667   DT_FINI_ARRAYSZ = 28,
 668   DT_RUNPATH = 29,
 669   DT_FLAGS = 30,
 670
 671   // This is used to mark a range of dynamic tags.  It is not really
 672   // a tag value.
 673   DT_ENCODING = 32,
 674
 675   DT_PREINIT_ARRAY = 32,
 676   DT_PREINIT_ARRAYSZ = 33,
 677   DT_LOOS = 0x6000000d,
 678   DT_HIOS = 0x6ffff000,
 679   DT_LOPROC = 0x70000000,
 680   DT_HIPROC = 0x7fffffff,
 681
 682   // The remaining values are extensions used by GNU or Solaris.
 683   DT_VALRNGLO = 0x6ffffd00,
 684   DT_GNU_PRELINKED = 0x6ffffdf5,
 685   DT_GNU_CONFLICTSZ = 0x6ffffdf6,
 686   DT_GNU_LIBLISTSZ = 0x6ffffdf7,
 687   DT_CHECKSUM = 0x6ffffdf8,
 688   DT_PLTPADSZ = 0x6ffffdf9,
 689   DT_MOVEENT = 0x6ffffdfa,
 690   DT_MOVESZ = 0x6ffffdfb,
 691   DT_FEATURE = 0x6ffffdfc,
 692   DT_POSFLAG_1 = 0x6ffffdfd,
 693   DT_SYMINSZ = 0x6ffffdfe,
 694   DT_SYMINENT = 0x6ffffdff,
 695   DT_VALRNGHI = 0x6ffffdff,
 696
 697   DT_ADDRRNGLO = 0x6ffffe00,
 698   DT_GNU_HASH = 0x6ffffef5,
 699   DT_TLSDESC_PLT = 0x6ffffef6,
 700   DT_TLSDESC_GOT = 0x6ffffef7,
 701   DT_GNU_CONFLICT = 0x6ffffef8,
 702   DT_GNU_LIBLIST = 0x6ffffef9,
 703   DT_CONFIG = 0x6ffffefa,
 704   DT_DEPAUDIT = 0x6ffffefb,
 705   DT_AUDIT = 0x6ffffefc,
 706   DT_PLTPAD = 0x6ffffefd,
 707   DT_MOVETAB = 0x6ffffefe,
 708   DT_SYMINFO = 0x6ffffeff,
 709   DT_ADDRRNGHI = 0x6ffffeff,
 710
 711   DT_RELACOUNT = 0x6ffffff9,
 712   DT_RELCOUNT = 0x6ffffffa,
 713   DT_FLAGS_1 = 0x6ffffffb,
 714   DT_VERDEF = 0x6ffffffc,
 715   DT_VERDEFNUM = 0x6ffffffd,
 716   DT_VERNEED = 0x6ffffffe,
 717   DT_VERNEEDNUM = 0x6fffffff,
 718
 719   DT_VERSYM = 0x6ffffff0,
 720
 721   // Specify the value of _GLOBAL_OFFSET_TABLE_.
 722   DT_PPC_GOT = 0x70000000,
 723
 724   // Specify the start of the .glink section.
 725   DT_PPC64_GLINK = 0x70000000,
 726
 727   // Specify the start and size of the .opd section.
 728   DT_PPC64_OPD = 0x70000001,
 729   DT_PPC64_OPDSZ = 0x70000002,
 730
 731   // The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
 732   // symbol table.  One dynamic entry exists for every STT_SPARC_REGISTER
 733   // symbol in the symbol table.
 734   DT_SPARC_REGISTER = 0x70000001,
 735
 736   DT_AUXILIARY = 0x7ffffffd,
 737   DT_USED = 0x7ffffffe,
 738   DT_FILTER = 0x7fffffff
 739 };
 740
 741 // Flags found in the DT_FLAGS dynamic element.
 742
 743 enum DF
 744 {
 745   DF_ORIGIN = 0x1,
 746   DF_SYMBOLIC = 0x2,
 747   DF_TEXTREL = 0x4,
 748   DF_BIND_NOW = 0x8,
 749   DF_STATIC_TLS = 0x10
 750 };
 751
 752 // Flags found in the DT_FLAGS_1 dynamic element.
 753
 754 enum DF_1
 755 {
 756   DF_1_NOW = 0x1,
 757   DF_1_GLOBAL = 0x2,
 758   DF_1_GROUP = 0x4,
 759   DF_1_NODELETE = 0x8,
 760   DF_1_LOADFLTR = 0x10,
 761   DF_1_INITFIRST = 0x20,
 762   DF_1_NOOPEN = 0x40,
 763   DF_1_ORIGIN = 0x80,
 764   DF_1_DIRECT = 0x100,
 765   DF_1_TRANS = 0x200,
 766   DF_1_INTERPOSE = 0x400,
 767   DF_1_NODEFLIB = 0x800,
 768   DF_1_NODUMP = 0x1000,
 769   DF_1_CONLFAT = 0x2000
 770 };
 771
 772 // Version numbers which appear in the vd_version field of a Verdef
 773 // structure.
 774
 775 const int VER_DEF_NONE = 0;
 776 const int VER_DEF_CURRENT = 1;
 777
 778 // Version numbers which appear in the vn_version field of a Verneed
 779 // structure.
 780
 781 const int VER_NEED_NONE = 0;
 782 const int VER_NEED_CURRENT = 1;
 783
 784 // Bit flags which appear in vd_flags of Verdef and vna_flags of
 785 // Vernaux.
 786
 787 const int VER_FLG_BASE = 0x1;
 788 const int VER_FLG_WEAK = 0x2;
 789 const int VER_FLG_INFO = 0x4;
 790
 791 // Special constants found in the SHT_GNU_versym entries.
 792
 793 const int VER_NDX_LOCAL = 0;
 794 const int VER_NDX_GLOBAL = 1;
 795
 796 // A SHT_GNU_versym section holds 16-bit words.  This bit is set if
 797 // the symbol is hidden and can only be seen when referenced using an
 798 // explicit version number.  This is a GNU extension.
 799
 800 const int VERSYM_HIDDEN = 0x8000;
 801
 802 // This is the mask for the rest of the data in a word read from a
 803 // SHT_GNU_versym section.
 804
 805 const int VERSYM_VERSION = 0x7fff;
 806
 807 // Note descriptor type codes for notes in a non-core file with an
 808 // empty name.
 809
 810 enum
 811 {
 812   // A version string.
 813   NT_VERSION = 1,
 814   // An architecture string.
 815   NT_ARCH = 2
 816 };
 817
 818 // Note descriptor type codes for notes in a non-core file with the
 819 // name "GNU".
 820
 821 enum
 822 {
 823   // The minimum ABI level.  This is used by the dynamic linker to
 824   // describe the minimal kernel version on which a shared library may
 825   // be used.  Th value should be four words.  Word 0 is an OS
 826   // descriptor (see below).  Word 1 is the major version of the ABI.
 827   // Word 2 is the minor version.  Word 3 is the subminor version.
 828   NT_GNU_ABI_TAG = 1,
 829   // Hardware capabilities information.  Word 0 is the number of
 830   // entries.  Word 1 is a bitmask of enabled entries.  The rest of
 831   // the descriptor is a series of entries, where each entry is a
 832   // single byte followed by a nul terminated string.  The byte gives
 833   // the bit number to test if enabled in the bitmask.
 834   NT_GNU_HWCAP = 2,
 835   // The build ID as set by the linker's --build-id option.  The
 836   // format of the descriptor depends on the build ID style.
 837   NT_GNU_BUILD_ID = 3,
 838   // The version of gold used to link.  Th descriptor is just a
 839   // string.
 840   NT_GNU_GOLD_VERSION = 4
 841 };
 842
 843 // The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
 844
 845 enum
 846 {
 847   ELF_NOTE_OS_LINUX = 0,
 848   ELF_NOTE_OS_GNU = 1,
 849   ELF_NOTE_OS_SOLARIS2 = 2,
 850   ELF_NOTE_OS_FREEBSD = 3,
 851   ELF_NOTE_OS_NETBSD = 4,
 852   ELF_NOTE_OS_SYLLABLE = 5
 853 };
 854
 855 } // End namespace elfcpp.
 856
 857 // Include internal details after defining the types.
 858 #include "elfcpp_internal.h"
 859
 860 namespace elfcpp
 861 {
 862
 863 // The offset of the ELF file header in the ELF file.
 864
 865 const int file_header_offset = 0;
 866
 867 // ELF structure sizes.
 868
 869 template<int size>
 870 struct Elf_sizes
 871 {
 872   // Size of ELF file header.
 873   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
 874   // Size of ELF segment header.
 875   static const int phdr_size = sizeof(internal::Phdr_data<size>);
 876   // Size of ELF section header.
 877   static const int shdr_size = sizeof(internal::Shdr_data<size>);
 878   // Size of ELF symbol table entry.
 879   static const int sym_size = sizeof(internal::Sym_data<size>);
 880   // Sizes of ELF reloc entries.
 881   static const int rel_size = sizeof(internal::Rel_data<size>);
 882   static const int rela_size = sizeof(internal::Rela_data<size>);
 883   // Size of ELF dynamic entry.
 884   static const int dyn_size = sizeof(internal::Dyn_data<size>);
 885   // Size of ELF version structures.
 886   static const int verdef_size = sizeof(internal::Verdef_data);
 887   static const int verdaux_size = sizeof(internal::Verdaux_data);
 888   static const int verneed_size = sizeof(internal::Verneed_data);
 889   static const int vernaux_size = sizeof(internal::Vernaux_data);
 890 };
 891
 892 // Accessor class for the ELF file header.
 893
 894 template<int size, bool big_endian>
 895 class Ehdr
 896 {
 897  public:
 898   Ehdr(const unsigned char* p)
 899     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
 900   { }
 901
 902   template<typename File>
 903   Ehdr(File* file, typename File::Location loc)
 904     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(
 905            file->view(loc.file_offset, loc.data_size).data()))
 906   { }
 907
 908   const unsigned char*
 909   get_e_ident() const
 910   { return this->p_->e_ident; }
 911
 912   Elf_Half
 913   get_e_type() const
 914   { return Convert<16, big_endian>::convert_host(this->p_->e_type); }
 915
 916   Elf_Half
 917   get_e_machine() const
 918   { return Convert<16, big_endian>::convert_host(this->p_->e_machine); }
 919
 920   Elf_Word
 921   get_e_version() const
 922   { return Convert<32, big_endian>::convert_host(this->p_->e_version); }
 923
 924   typename Elf_types<size>::Elf_Addr
 925   get_e_entry() const
 926   { return Convert<size, big_endian>::convert_host(this->p_->e_entry); }
 927
 928   typename Elf_types<size>::Elf_Off
 929   get_e_phoff() const
 930   { return Convert<size, big_endian>::convert_host(this->p_->e_phoff); }
 931
 932   typename Elf_types<size>::Elf_Off
 933   get_e_shoff() const
 934   { return Convert<size, big_endian>::convert_host(this->p_->e_shoff); }
 935
 936   Elf_Word
 937   get_e_flags() const
 938   { return Convert<32, big_endian>::convert_host(this->p_->e_flags); }
 939
 940   Elf_Half
 941   get_e_ehsize() const
 942   { return Convert<16, big_endian>::convert_host(this->p_->e_ehsize); }
 943
 944   Elf_Half
 945   get_e_phentsize() const
 946   { return Convert<16, big_endian>::convert_host(this->p_->e_phentsize); }
 947
 948   Elf_Half
 949   get_e_phnum() const
 950   { return Convert<16, big_endian>::convert_host(this->p_->e_phnum); }
 951
 952   Elf_Half
 953   get_e_shentsize() const
 954   { return Convert<16, big_endian>::convert_host(this->p_->e_shentsize); }
 955
 956   Elf_Half
 957   get_e_shnum() const
 958   { return Convert<16, big_endian>::convert_host(this->p_->e_shnum); }
 959
 960   Elf_Half
 961   get_e_shstrndx() const
 962   { return Convert<16, big_endian>::convert_host(this->p_->e_shstrndx); }
 963
 964  private:
 965   const internal::Ehdr_data<size>* p_;
 966 };
 967
 968 // Write class for the ELF file header.
 969
 970 template<int size, bool big_endian>
 971 class Ehdr_write
 972 {
 973  public:
 974   Ehdr_write(unsigned char* p)
 975     : p_(reinterpret_cast<internal::Ehdr_data<size>*>(p))
 976   { }
 977
 978   void
 979   put_e_ident(const unsigned char v[EI_NIDENT]) const
 980   { memcpy(this->p_->e_ident, v, EI_NIDENT); }
 981
 982   void
 983   put_e_type(Elf_Half v)
 984   { this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
 985
 986   void
 987   put_e_machine(Elf_Half v)
 988   { this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
 989
 990   void
 991   put_e_version(Elf_Word v)
 992   { this->p_->e_version = Convert<32, big_endian>::convert_host(v); }
 993
 994   void
 995   put_e_entry(typename Elf_types<size>::Elf_Addr v)
 996   { this->p_->e_entry = Convert<size, big_endian>::convert_host(v); }
 997
 998   void
 999   put_e_phoff(typename Elf_types<size>::Elf_Off v)
1000   { this->p_->e_phoff = Convert<size, big_endian>::convert_host(v); }
1001
1002   void
1003   put_e_shoff(typename Elf_types<size>::Elf_Off v)
1004   { this->p_->e_shoff = Convert<size, big_endian>::convert_host(v); }
1005
1006   void
1007   put_e_flags(Elf_Word v)
1008   { this->p_->e_flags = Convert<32, big_endian>::convert_host(v); }
1009
1010   void
1011   put_e_ehsize(Elf_Half v)
1012   { this->p_->e_ehsize = Convert<16, big_endian>::convert_host(v); }
1013
1014   void
1015   put_e_phentsize(Elf_Half v)
1016   { this->p_->e_phentsize = Convert<16, big_endian>::convert_host(v); }
1017
1018   void
1019   put_e_phnum(Elf_Half v)
1020   { this->p_->e_phnum = Convert<16, big_endian>::convert_host(v); }
1021
1022   void
1023   put_e_shentsize(Elf_Half v)
1024   { this->p_->e_shentsize = Convert<16, big_endian>::convert_host(v); }
1025
1026   void
1027   put_e_shnum(Elf_Half v)
1028   { this->p_->e_shnum = Convert<16, big_endian>::convert_host(v); }
1029
1030   void
1031   put_e_shstrndx(Elf_Half v)
1032   { this->p_->e_shstrndx = Convert<16, big_endian>::convert_host(v); }
1033
1034  private:
1035   internal::Ehdr_data<size>* p_;
1036 };
1037
1038 // Accessor class for an ELF section header.
1039
1040 template<int size, bool big_endian>
1041 class Shdr
1042 {
1043  public:
1044   Shdr(const unsigned char* p)
1045     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
1046   { }
1047
1048   template<typename File>
1049   Shdr(File* file, typename File::Location loc)
1050     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(
1051            file->view(loc.file_offset, loc.data_size).data()))
1052   { }
1053
1054   Elf_Word
1055   get_sh_name() const
1056   { return Convert<32, big_endian>::convert_host(this->p_->sh_name); }
1057
1058   Elf_Word
1059   get_sh_type() const
1060   { return Convert<32, big_endian>::convert_host(this->p_->sh_type); }
1061
1062   typename Elf_types<size>::Elf_WXword
1063   get_sh_flags() const
1064   { return Convert<size, big_endian>::convert_host(this->p_->sh_flags); }
1065
1066   typename Elf_types<size>::Elf_Addr
1067   get_sh_addr() const
1068   { return Convert<size, big_endian>::convert_host(this->p_->sh_addr); }
1069
1070   typename Elf_types<size>::Elf_Off
1071   get_sh_offset() const
1072   { return Convert<size, big_endian>::convert_host(this->p_->sh_offset); }
1073
1074   typename Elf_types<size>::Elf_WXword
1075   get_sh_size() const
1076   { return Convert<size, big_endian>::convert_host(this->p_->sh_size); }
1077
1078   Elf_Word
1079   get_sh_link() const
1080   { return Convert<32, big_endian>::convert_host(this->p_->sh_link); }
1081
1082   Elf_Word
1083   get_sh_info() const
1084   { return Convert<32, big_endian>::convert_host(this->p_->sh_info); }
1085
1086   typename Elf_types<size>::Elf_WXword
1087   get_sh_addralign() const
1088   { return
1089       Convert<size, big_endian>::convert_host(this->p_->sh_addralign); }
1090
1091   typename Elf_types<size>::Elf_WXword
1092   get_sh_entsize() const
1093   { return Convert<size, big_endian>::convert_host(this->p_->sh_entsize); }
1094
1095  private:
1096   const internal::Shdr_data<size>* p_;
1097 };
1098
1099 // Write class for an ELF section header.
1100
1101 template<int size, bool big_endian>
1102 class Shdr_write
1103 {
1104  public:
1105   Shdr_write(unsigned char* p)
1106     : p_(reinterpret_cast<internal::Shdr_data<size>*>(p))
1107   { }
1108
1109   void
1110   put_sh_name(Elf_Word v)
1111   { this->p_->sh_name = Convert<32, big_endian>::convert_host(v); }
1112
1113   void
1114   put_sh_type(Elf_Word v)
1115   { this->p_->sh_type = Convert<32, big_endian>::convert_host(v); }
1116
1117   void
1118   put_sh_flags(typename Elf_types<size>::Elf_WXword v)
1119   { this->p_->sh_flags = Convert<size, big_endian>::convert_host(v); }
1120
1121   void
1122   put_sh_addr(typename Elf_types<size>::Elf_Addr v)
1123   { this->p_->sh_addr = Convert<size, big_endian>::convert_host(v); }
1124
1125   void
1126   put_sh_offset(typename Elf_types<size>::Elf_Off v)
1127   { this->p_->sh_offset = Convert<size, big_endian>::convert_host(v); }
1128
1129   void
1130   put_sh_size(typename Elf_types<size>::Elf_WXword v)
1131   { this->p_->sh_size = Convert<size, big_endian>::convert_host(v); }
1132
1133   void
1134   put_sh_link(Elf_Word v)
1135   { this->p_->sh_link = Convert<32, big_endian>::convert_host(v); }
1136
1137   void
1138   put_sh_info(Elf_Word v)
1139   { this->p_->sh_info = Convert<32, big_endian>::convert_host(v); }
1140
1141   void
1142   put_sh_addralign(typename Elf_types<size>::Elf_WXword v)
1143   { this->p_->sh_addralign = Convert<size, big_endian>::convert_host(v); }
1144
1145   void
1146   put_sh_entsize(typename Elf_types<size>::Elf_WXword v)
1147   { this->p_->sh_entsize = Convert<size, big_endian>::convert_host(v); }
1148
1149  private:
1150   internal::Shdr_data<size>* p_;
1151 };
1152
1153 // Accessor class for an ELF segment header.
1154
1155 template<int size, bool big_endian>
1156 class Phdr
1157 {
1158  public:
1159   Phdr(const unsigned char* p)
1160     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
1161   { }
1162
1163   template<typename File>
1164   Phdr(File* file, typename File::Location loc)
1165     : p_(reinterpret_cast<internal::Phdr_data<size>*>(
1166            file->view(loc.file_offset, loc.data_size).data()))
1167   { }
1168
1169   Elf_Word
1170   get_p_type() const
1171   { return Convert<32, big_endian>::convert_host(this->p_->p_type); }
1172
1173   typename Elf_types<size>::Elf_Off
1174   get_p_offset() const
1175   { return Convert<size, big_endian>::convert_host(this->p_->p_offset); }
1176
1177   typename Elf_types<size>::Elf_Addr
1178   get_p_vaddr() const
1179   { return Convert<size, big_endian>::convert_host(this->p_->p_vaddr); }
1180
1181   typename Elf_types<size>::Elf_Addr
1182   get_p_paddr() const
1183   { return Convert<size, big_endian>::convert_host(this->p_->p_paddr); }
1184
1185   typename Elf_types<size>::Elf_WXword
1186   get_p_filesz() const
1187   { return Convert<size, big_endian>::convert_host(this->p_->p_filesz); }
1188
1189   typename Elf_types<size>::Elf_WXword
1190   get_p_memsz() const
1191   { return Convert<size, big_endian>::convert_host(this->p_->p_memsz); }
1192
1193   Elf_Word
1194   get_p_flags() const
1195   { return Convert<32, big_endian>::convert_host(this->p_->p_flags); }
1196
1197   typename Elf_types<size>::Elf_WXword
1198   get_p_align() const
1199   { return Convert<size, big_endian>::convert_host(this->p_->p_align); }
1200
1201  private:
1202   const internal::Phdr_data<size>* p_;
1203 };
1204
1205 // Write class for an ELF segment header.
1206
1207 template<int size, bool big_endian>
1208 class Phdr_write
1209 {
1210  public:
1211   Phdr_write(unsigned char* p)
1212     : p_(reinterpret_cast<internal::Phdr_data<size>*>(p))
1213   { }
1214
1215   void
1216   put_p_type(Elf_Word v)
1217   { this->p_->p_type = Convert<32, big_endian>::convert_host(v); }
1218
1219   void
1220   put_p_offset(typename Elf_types<size>::Elf_Off v)
1221   { this->p_->p_offset = Convert<size, big_endian>::convert_host(v); }
1222
1223   void
1224   put_p_vaddr(typename Elf_types<size>::Elf_Addr v)
1225   { this->p_->p_vaddr = Convert<size, big_endian>::convert_host(v); }
1226
1227   void
1228   put_p_paddr(typename Elf_types<size>::Elf_Addr v)
1229   { this->p_->p_paddr = Convert<size, big_endian>::convert_host(v); }
1230
1231   void
1232   put_p_filesz(typename Elf_types<size>::Elf_WXword v)
1233   { this->p_->p_filesz = Convert<size, big_endian>::convert_host(v); }
1234
1235   void
1236   put_p_memsz(typename Elf_types<size>::Elf_WXword v)
1237   { this->p_->p_memsz = Convert<size, big_endian>::convert_host(v); }
1238
1239   void
1240   put_p_flags(Elf_Word v)
1241   { this->p_->p_flags = Convert<32, big_endian>::convert_host(v); }
1242
1243   void
1244   put_p_align(typename Elf_types<size>::Elf_WXword v)
1245   { this->p_->p_align = Convert<size, big_endian>::convert_host(v); }
1246
1247  private:
1248   internal::Phdr_data<size>* p_;
1249 };
1250
1251 // Accessor class for an ELF symbol table entry.
1252
1253 template<int size, bool big_endian>
1254 class Sym
1255 {
1256  public:
1257   Sym(const unsigned char* p)
1258     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
1259   { }
1260
1261   template<typename File>
1262   Sym(File* file, typename File::Location loc)
1263     : p_(reinterpret_cast<const internal::Sym_data<size>*>(
1264            file->view(loc.file_offset, loc.data_size).data()))
1265   { }
1266
1267   Elf_Word
1268   get_st_name() const
1269   { return Convert<32, big_endian>::convert_host(this->p_->st_name); }
1270
1271   typename Elf_types<size>::Elf_Addr
1272   get_st_value() const
1273   { return Convert<size, big_endian>::convert_host(this->p_->st_value); }
1274
1275   typename Elf_types<size>::Elf_WXword
1276   get_st_size() const
1277   { return Convert<size, big_endian>::convert_host(this->p_->st_size); }
1278
1279   unsigned char
1280   get_st_info() const
1281   { return this->p_->st_info; }
1282
1283   STB
1284   get_st_bind() const
1285   { return elf_st_bind(this->get_st_info()); }
1286
1287   STT
1288   get_st_type() const
1289   { return elf_st_type(this->get_st_info()); }
1290
1291   unsigned char
1292   get_st_other() const
1293   { return this->p_->st_other; }
1294
1295   STV
1296   get_st_visibility() const
1297   { return elf_st_visibility(this->get_st_other()); }
1298
1299   unsigned char
1300   get_st_nonvis() const
1301   { return elf_st_nonvis(this->get_st_other()); }
1302
1303   Elf_Half
1304   get_st_shndx() const
1305   { return Convert<16, big_endian>::convert_host(this->p_->st_shndx); }
1306
1307  private:
1308   const internal::Sym_data<size>* p_;
1309 };
1310
1311 // Writer class for an ELF symbol table entry.
1312
1313 template<int size, bool big_endian>
1314 class Sym_write
1315 {
1316  public:
1317   Sym_write(unsigned char* p)
1318     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
1319   { }
1320
1321   void
1322   put_st_name(Elf_Word v)
1323   { this->p_->st_name = Convert<32, big_endian>::convert_host(v); }
1324
1325   void
1326   put_st_value(typename Elf_types<size>::Elf_Addr v)
1327   { this->p_->st_value = Convert<size, big_endian>::convert_host(v); }
1328
1329   void
1330   put_st_size(typename Elf_types<size>::Elf_WXword v)
1331   { this->p_->st_size = Convert<size, big_endian>::convert_host(v); }
1332
1333   void
1334   put_st_info(unsigned char v)
1335   { this->p_->st_info = v; }
1336
1337   void
1338   put_st_info(STB bind, STT type)
1339   { this->p_->st_info = elf_st_info(bind, type); }
1340
1341   void
1342   put_st_other(unsigned char v)
1343   { this->p_->st_other = v; }
1344
1345   void
1346   put_st_other(STV vis, unsigned char nonvis)
1347   { this->p_->st_other = elf_st_other(vis, nonvis); }
1348
1349   void
1350   put_st_shndx(Elf_Half v)
1351   { this->p_->st_shndx = Convert<16, big_endian>::convert_host(v); }
1352
1353   Sym<size, big_endian>
1354   sym()
1355   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
1356
1357  private:
1358   internal::Sym_data<size>* p_;
1359 };
1360
1361 // Accessor classes for an ELF REL relocation entry.
1362
1363 template<int size, bool big_endian>
1364 class Rel
1365 {
1366  public:
1367   Rel(const unsigned char* p)
1368     : p_(reinterpret_cast<const internal::Rel_data<size>*>(p))
1369   { }
1370
1371   template<typename File>
1372   Rel(File* file, typename File::Location loc)
1373     : p_(reinterpret_cast<const internal::Rel_data<size>*>(
1374            file->view(loc.file_offset, loc.data_size).data()))
1375   { }
1376
1377   typename Elf_types<size>::Elf_Addr
1378   get_r_offset() const
1379   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1380
1381   typename Elf_types<size>::Elf_WXword
1382   get_r_info() const
1383   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1384
1385  private:
1386   const internal::Rel_data<size>* p_;
1387 };
1388
1389 // Writer class for an ELF Rel relocation.
1390
1391 template<int size, bool big_endian>
1392 class Rel_write
1393 {
1394  public:
1395   Rel_write(unsigned char* p)
1396     : p_(reinterpret_cast<internal::Rel_data<size>*>(p))
1397   { }
1398
1399   void
1400   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1401   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1402
1403   void
1404   put_r_info(typename Elf_types<size>::Elf_WXword v)
1405   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1406
1407  private:
1408   internal::Rel_data<size>* p_;
1409 };
1410
1411 // Accessor class for an ELF Rela relocation.
1412
1413 template<int size, bool big_endian>
1414 class Rela
1415 {
1416  public:
1417   Rela(const unsigned char* p)
1418     : p_(reinterpret_cast<const internal::Rela_data<size>*>(p))
1419   { }
1420
1421   template<typename File>
1422   Rela(File* file, typename File::Location loc)
1423     : p_(reinterpret_cast<const internal::Rela_data<size>*>(
1424            file->view(loc.file_offset, loc.data_size).data()))
1425   { }
1426
1427   typename Elf_types<size>::Elf_Addr
1428   get_r_offset() const
1429   { return Convert<size, big_endian>::convert_host(this->p_->r_offset); }
1430
1431   typename Elf_types<size>::Elf_WXword
1432   get_r_info() const
1433   { return Convert<size, big_endian>::convert_host(this->p_->r_info); }
1434
1435   typename Elf_types<size>::Elf_Swxword
1436   get_r_addend() const
1437   { return Convert<size, big_endian>::convert_host(this->p_->r_addend); }
1438
1439  private:
1440   const internal::Rela_data<size>* p_;
1441 };
1442
1443 // Writer class for an ELF Rela relocation.
1444
1445 template<int size, bool big_endian>
1446 class Rela_write
1447 {
1448  public:
1449   Rela_write(unsigned char* p)
1450     : p_(reinterpret_cast<internal::Rela_data<size>*>(p))
1451   { }
1452
1453   void
1454   put_r_offset(typename Elf_types<size>::Elf_Addr v)
1455   { this->p_->r_offset = Convert<size, big_endian>::convert_host(v); }
1456
1457   void
1458   put_r_info(typename Elf_types<size>::Elf_WXword v)
1459   { this->p_->r_info = Convert<size, big_endian>::convert_host(v); }
1460
1461   void
1462   put_r_addend(typename Elf_types<size>::Elf_Swxword v)
1463   { this->p_->r_addend = Convert<size, big_endian>::convert_host(v); }
1464
1465  private:
1466   internal::Rela_data<size>* p_;
1467 };
1468
1469 // Accessor classes for entries in the ELF SHT_DYNAMIC section aka
1470 // PT_DYNAMIC segment.
1471
1472 template<int size, bool big_endian>
1473 class Dyn
1474 {
1475  public:
1476   Dyn(const unsigned char* p)
1477     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(p))
1478   { }
1479
1480   template<typename File>
1481   Dyn(File* file, typename File::Location loc)
1482     : p_(reinterpret_cast<const internal::Dyn_data<size>*>(
1483            file->view(loc.file_offset, loc.data_size).data()))
1484   { }
1485
1486   typename Elf_types<size>::Elf_Swxword
1487   get_d_tag() const
1488   { return Convert<size, big_endian>::convert_host(this->p_->d_tag); }
1489
1490   typename Elf_types<size>::Elf_WXword
1491   get_d_val() const
1492   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1493
1494   typename Elf_types<size>::Elf_Addr
1495   get_d_ptr() const
1496   { return Convert<size, big_endian>::convert_host(this->p_->d_val); }
1497
1498  private:
1499   const internal::Dyn_data<size>* p_;
1500 };
1501
1502 // Write class for an entry in the SHT_DYNAMIC section.
1503
1504 template<int size, bool big_endian>
1505 class Dyn_write
1506 {
1507  public:
1508   Dyn_write(unsigned char* p)
1509     : p_(reinterpret_cast<internal::Dyn_data<size>*>(p))
1510   { }
1511
1512   void
1513   put_d_tag(typename Elf_types<size>::Elf_Swxword v)
1514   { this->p_->d_tag = Convert<size, big_endian>::convert_host(v); }
1515
1516   void
1517   put_d_val(typename Elf_types<size>::Elf_WXword v)
1518   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1519
1520   void
1521   put_d_ptr(typename Elf_types<size>::Elf_Addr v)
1522   { this->p_->d_val = Convert<size, big_endian>::convert_host(v); }
1523
1524  private:
1525   internal::Dyn_data<size>* p_;
1526 };
1527
1528 // Accessor classes for entries in the ELF SHT_GNU_verdef section.
1529
1530 template<int size, bool big_endian>
1531 class Verdef
1532 {
1533  public:
1534   Verdef(const unsigned char* p)
1535     : p_(reinterpret_cast<const internal::Verdef_data*>(p))
1536   { }
1537
1538   template<typename File>
1539   Verdef(File* file, typename File::Location loc)
1540     : p_(reinterpret_cast<const internal::Verdef_data*>(
1541            file->view(loc.file_offset, loc.data_size).data()))
1542   { }
1543
1544   Elf_Half
1545   get_vd_version() const
1546   { return Convert<16, big_endian>::convert_host(this->p_->vd_version); }
1547
1548   Elf_Half
1549   get_vd_flags() const
1550   { return Convert<16, big_endian>::convert_host(this->p_->vd_flags); }
1551
1552   Elf_Half
1553   get_vd_ndx() const
1554   { return Convert<16, big_endian>::convert_host(this->p_->vd_ndx); }
1555
1556   Elf_Half
1557   get_vd_cnt() const
1558   { return Convert<16, big_endian>::convert_host(this->p_->vd_cnt); }
1559
1560   Elf_Word
1561   get_vd_hash() const
1562   { return Convert<32, big_endian>::convert_host(this->p_->vd_hash); }
1563
1564   Elf_Word
1565   get_vd_aux() const
1566   { return Convert<32, big_endian>::convert_host(this->p_->vd_aux); }
1567
1568   Elf_Word
1569   get_vd_next() const
1570   { return Convert<32, big_endian>::convert_host(this->p_->vd_next); }
1571
1572  private:
1573   const internal::Verdef_data* p_;
1574 };
1575
1576 template<int size, bool big_endian>
1577 class Verdef_write
1578 {
1579  public:
1580   Verdef_write(unsigned char* p)
1581     : p_(reinterpret_cast<internal::Verdef_data*>(p))
1582   { }
1583
1584   void
1585   set_vd_version(Elf_Half v)
1586   { this->p_->vd_version = Convert<16, big_endian>::convert_host(v); }
1587
1588   void
1589   set_vd_flags(Elf_Half v)
1590   { this->p_->vd_flags = Convert<16, big_endian>::convert_host(v); }
1591
1592   void
1593   set_vd_ndx(Elf_Half v)
1594   { this->p_->vd_ndx = Convert<16, big_endian>::convert_host(v); }
1595
1596   void
1597   set_vd_cnt(Elf_Half v)
1598   { this->p_->vd_cnt = Convert<16, big_endian>::convert_host(v); }
1599
1600   void
1601   set_vd_hash(Elf_Word v)
1602   { this->p_->vd_hash = Convert<32, big_endian>::convert_host(v); }
1603
1604   void
1605   set_vd_aux(Elf_Word v)
1606   { this->p_->vd_aux = Convert<32, big_endian>::convert_host(v); }
1607
1608   void
1609   set_vd_next(Elf_Word v)
1610   { this->p_->vd_next = Convert<32, big_endian>::convert_host(v); }
1611
1612  private:
1613   internal::Verdef_data* p_;
1614 };
1615
1616 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verdef
1617 // section.
1618
1619 template<int size, bool big_endian>
1620 class Verdaux
1621 {
1622  public:
1623   Verdaux(const unsigned char* p)
1624     : p_(reinterpret_cast<const internal::Verdaux_data*>(p))
1625   { }
1626
1627   template<typename File>
1628   Verdaux(File* file, typename File::Location loc)
1629     : p_(reinterpret_cast<const internal::Verdaux_data*>(
1630            file->view(loc.file_offset, loc.data_size).data()))
1631   { }
1632
1633   Elf_Word
1634   get_vda_name() const
1635   { return Convert<32, big_endian>::convert_host(this->p_->vda_name); }
1636
1637   Elf_Word
1638   get_vda_next() const
1639   { return Convert<32, big_endian>::convert_host(this->p_->vda_next); }
1640
1641  private:
1642   const internal::Verdaux_data* p_;
1643 };
1644
1645 template<int size, bool big_endian>
1646 class Verdaux_write
1647 {
1648  public:
1649   Verdaux_write(unsigned char* p)
1650     : p_(reinterpret_cast<internal::Verdaux_data*>(p))
1651   { }
1652
1653   void
1654   set_vda_name(Elf_Word v)
1655   { this->p_->vda_name = Convert<32, big_endian>::convert_host(v); }
1656
1657   void
1658   set_vda_next(Elf_Word v)
1659   { this->p_->vda_next = Convert<32, big_endian>::convert_host(v); }
1660
1661  private:
1662   internal::Verdaux_data* p_;
1663 };
1664
1665 // Accessor classes for entries in the ELF SHT_GNU_verneed section.
1666
1667 template<int size, bool big_endian>
1668 class Verneed
1669 {
1670  public:
1671   Verneed(const unsigned char* p)
1672     : p_(reinterpret_cast<const internal::Verneed_data*>(p))
1673   { }
1674
1675   template<typename File>
1676   Verneed(File* file, typename File::Location loc)
1677     : p_(reinterpret_cast<const internal::Verneed_data*>(
1678            file->view(loc.file_offset, loc.data_size).data()))
1679   { }
1680
1681   Elf_Half
1682   get_vn_version() const
1683   { return Convert<16, big_endian>::convert_host(this->p_->vn_version); }
1684
1685   Elf_Half
1686   get_vn_cnt() const
1687   { return Convert<16, big_endian>::convert_host(this->p_->vn_cnt); }
1688
1689   Elf_Word
1690   get_vn_file() const
1691   { return Convert<32, big_endian>::convert_host(this->p_->vn_file); }
1692
1693   Elf_Word
1694   get_vn_aux() const
1695   { return Convert<32, big_endian>::convert_host(this->p_->vn_aux); }
1696
1697   Elf_Word
1698   get_vn_next() const
1699   { return Convert<32, big_endian>::convert_host(this->p_->vn_next); }
1700
1701  private:
1702   const internal::Verneed_data* p_;
1703 };
1704
1705 template<int size, bool big_endian>
1706 class Verneed_write
1707 {
1708  public:
1709   Verneed_write(unsigned char* p)
1710     : p_(reinterpret_cast<internal::Verneed_data*>(p))
1711   { }
1712
1713   void
1714   set_vn_version(Elf_Half v)
1715   { this->p_->vn_version = Convert<16, big_endian>::convert_host(v); }
1716
1717   void
1718   set_vn_cnt(Elf_Half v)
1719   { this->p_->vn_cnt = Convert<16, big_endian>::convert_host(v); }
1720
1721   void
1722   set_vn_file(Elf_Word v)
1723   { this->p_->vn_file = Convert<32, big_endian>::convert_host(v); }
1724
1725   void
1726   set_vn_aux(Elf_Word v)
1727   { this->p_->vn_aux = Convert<32, big_endian>::convert_host(v); }
1728
1729   void
1730   set_vn_next(Elf_Word v)
1731   { this->p_->vn_next = Convert<32, big_endian>::convert_host(v); }
1732
1733  private:
1734   internal::Verneed_data* p_;
1735 };
1736
1737 // Accessor classes for auxiliary entries in the ELF SHT_GNU_verneed
1738 // section.
1739
1740 template<int size, bool big_endian>
1741 class Vernaux
1742 {
1743  public:
1744   Vernaux(const unsigned char* p)
1745     : p_(reinterpret_cast<const internal::Vernaux_data*>(p))
1746   { }
1747
1748   template<typename File>
1749   Vernaux(File* file, typename File::Location loc)
1750     : p_(reinterpret_cast<const internal::Vernaux_data*>(
1751            file->view(loc.file_offset, loc.data_size).data()))
1752   { }
1753
1754   Elf_Word
1755   get_vna_hash() const
1756   { return Convert<32, big_endian>::convert_host(this->p_->vna_hash); }
1757
1758   Elf_Half
1759   get_vna_flags() const
1760   { return Convert<16, big_endian>::convert_host(this->p_->vna_flags); }
1761
1762   Elf_Half
1763   get_vna_other() const
1764   { return Convert<16, big_endian>::convert_host(this->p_->vna_other); }
1765
1766   Elf_Word
1767   get_vna_name() const
1768   { return Convert<32, big_endian>::convert_host(this->p_->vna_name); }
1769
1770   Elf_Word
1771   get_vna_next() const
1772   { return Convert<32, big_endian>::convert_host(this->p_->vna_next); }
1773
1774  private:
1775   const internal::Vernaux_data* p_;
1776 };
1777
1778 template<int size, bool big_endian>
1779 class Vernaux_write
1780 {
1781  public:
1782   Vernaux_write(unsigned char* p)
1783     : p_(reinterpret_cast<internal::Vernaux_data*>(p))
1784   { }
1785
1786   void
1787   set_vna_hash(Elf_Word v)
1788   { this->p_->vna_hash = Convert<32, big_endian>::convert_host(v); }
1789
1790   void
1791   set_vna_flags(Elf_Half v)
1792   { this->p_->vna_flags = Convert<16, big_endian>::convert_host(v); }
1793
1794   void
1795   set_vna_other(Elf_Half v)
1796   { this->p_->vna_other = Convert<16, big_endian>::convert_host(v); }
1797
1798   void
1799   set_vna_name(Elf_Word v)
1800   { this->p_->vna_name = Convert<32, big_endian>::convert_host(v); }
1801
1802   void
1803   set_vna_next(Elf_Word v)
1804   { this->p_->vna_next = Convert<32, big_endian>::convert_host(v); }
1805
1806  private:
1807   internal::Vernaux_data* p_;
1808 };
1809
1810 } // End namespace elfcpp.
1811
1812 #endif // !defined(ELFPCP_H)