elfcpp/elfcpp.h

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