elfcpp/elfcpp.h

   1 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
   2
   3 // This is the external interface for elfcpp.
   4
   5 #ifndef ELFCPP_H
   6 #define ELFCPP_H
   7
   8 #include "elfcpp_config.h"
   9
  10 #include <stdint.h>
  11
  12 namespace elfcpp
  13 {
  14
  15 // Basic ELF types.
  16
  17 // These types are always the same size.
  18
  19 typedef uint16_t Elf_Half;
  20 typedef uint32_t Elf_Word;
  21 typedef int32_t Elf_Sword;
  22 typedef uint64_t Elf_Xword;
  23 typedef int64_t Elf_Sxword;
  24
  25 // These types vary in size depending on the ELF file class.  The
  26 // template parameter should be 32 or 64.
  27
  28 template<int size>
  29 struct Elf_types;
  30
  31 template<>
  32 struct Elf_types<32>
  33 {
  34   typedef uint32_t Elf_Addr;
  35   typedef uint32_t Elf_Off;
  36   typedef uint32_t Elf_WXword;
  37 };
  38
  39 template<>
  40 struct Elf_types<64>
  41 {
  42   typedef uint64_t Elf_Addr;
  43   typedef uint64_t Elf_Off;
  44   typedef uint64_t Elf_WXword;
  45 };
  46
  47 // Offsets within the Ehdr e_ident field.
  48
  49 const int EI_MAG0 = 0;
  50 const int EI_MAG1 = 1;
  51 const int EI_MAG2 = 2;
  52 const int EI_MAG3 = 3;
  53 const int EI_CLASS = 4;
  54 const int EI_DATA = 5;
  55 const int EI_VERSION = 6;
  56 const int EI_OSABI = 7;
  57 const int EI_ABIVERSION = 8;
  58 const int EI_PAD = 9;
  59 const int EI_NIDENT = 16;
  60
  61 // The valid values found in Ehdr e_ident[EI_MAG0 through EI_MAG3].
  62
  63 const int ELFMAG0 = 0x7f;
  64 const int ELFMAG1 = 'E';
  65 const int ELFMAG2 = 'L';
  66 const int ELFMAG3 = 'F';
  67
  68 // The valid values found in Ehdr e_ident[EI_CLASS].
  69
  70 enum
  71 {
  72   ELFCLASSNONE = 0,
  73   ELFCLASS32 = 1,
  74   ELFCLASS64 = 2
  75 };
  76
  77 // The valid values found in Ehdr e_ident[EI_DATA].
  78
  79 enum
  80 {
  81   ELFDATANONE = 0,
  82   ELFDATA2LSB = 1,
  83   ELFDATA2MSB = 2
  84 };
  85
  86 // The valid values found in Ehdr e_ident[EI_VERSION] and e_version.
  87
  88 enum
  89 {
  90   EV_NONE = 0,
  91   EV_CURRENT = 1
  92 };
  93
  94 // The valid values found in Ehdr e_ident[EI_OSABI].
  95
  96 enum ELFOSABI
  97 {
  98   ELFOSABI_NONE = 0,
  99   ELFOSABI_HPUX = 1,
 100   ELFOSABI_NETBSD = 2,
 101   // ELFOSABI_LINUX is not listed in the ELF standard.
 102   ELFOSABI_LINUX = 3,
 103   // ELFOSABI_HURD is not listed in the ELF standard.
 104   ELFOSABI_HURD = 4,
 105   ELFOSABI_SOLARIS = 6,
 106   ELFOSABI_AIX = 7,
 107   ELFOSABI_IRIX = 8,
 108   ELFOSABI_FREEBSD = 9,
 109   ELFOSABI_TRU64 = 10,
 110   ELFOSABI_MODESTO = 11,
 111   ELFOSABI_OPENBSD = 12,
 112   ELFOSABI_OPENVMS = 13,
 113   ELFOSABI_NSK = 14,
 114   ELFOSABI_AROS = 15,
 115   // A GNU extension for the ARM.
 116   ELFOSABI_ARM = 97,
 117   // A GNU extension for the MSP.
 118   ELFOSABI_STANDALONE = 255
 119 };
 120
 121 // The valid values found in the Ehdr e_type field.
 122
 123 enum ET
 124 {
 125   ET_NONE = 0,
 126   ET_REL = 1,
 127   ET_EXEC = 2,
 128   ET_DYN = 3,
 129   ET_CORE = 4,
 130   ET_LOOS = 0xfe00,
 131   ET_HIOS = 0xfeff,
 132   ET_LOPROC = 0xff00,
 133   ET_HIPROC = 0xffff
 134 };
 135
 136 // The valid values found in the Ehdr e_machine field.
 137
 138 enum EM
 139 {
 140   EM_NONE = 0,
 141   EM_M32 = 1,
 142   EM_SPARC = 2,
 143   EM_386 = 3,
 144   EM_68K = 4,
 145   EM_88K = 5,
 146   // 6 used to be EM_486
 147   EM_860 = 7,
 148   EM_MIPS = 8,
 149   EM_S370 = 9,
 150   EM_MIPS_RS3_LE = 10,
 151   // 11 was the old Sparc V9 ABI.
 152   // 12 through 14 are reserved.
 153   EM_PARISC = 15,
 154   // 16 is reserved.
 155   // Some old PowerPC object files use 17.
 156   EM_VPP500 = 17,
 157   EM_SPARC32PLUS = 18,
 158   EM_960 = 19,
 159   EM_PPC = 20,
 160   EM_PPC64 = 21,
 161   EM_S390 = 22,
 162   // 23 through 35 are served.
 163   EM_V800 = 36,
 164   EM_FR20 = 37,
 165   EM_RH32 = 38,
 166   EM_RCE = 39,
 167   EM_ARM = 40,
 168   EM_ALPHA = 41,
 169   EM_SH = 42,
 170   EM_SPARCV9 = 43,
 171   EM_TRICORE = 44,
 172   EM_ARC = 45,
 173   EM_H8_300 = 46,
 174   EM_H8_300H = 47,
 175   EM_H8S = 48,
 176   EM_H8_500 = 49,
 177   EM_IA_64 = 50,
 178   EM_MIPS_X = 51,
 179   EM_COLDFIRE = 52,
 180   EM_68HC12 = 53,
 181   EM_MMA = 54,
 182   EM_PCP = 55,
 183   EM_NCPU = 56,
 184   EM_NDR1 = 57,
 185   EM_STARCORE = 58,
 186   EM_ME16 = 59,
 187   EM_ST100 = 60,
 188   EM_TINYJ = 61,
 189   EM_X86_64 = 62,
 190   EM_PDSP = 63,
 191   EM_PDP10 = 64,
 192   EM_PDP11 = 65,
 193   EM_FX66 = 66,
 194   EM_ST9PLUS = 67,
 195   EM_ST7 = 68,
 196   EM_68HC16 = 69,
 197   EM_68HC11 = 70,
 198   EM_68HC08 = 71,
 199   EM_68HC05 = 72,
 200   EM_SVX = 73,
 201   EM_ST19 = 74,
 202   EM_VAX = 75,
 203   EM_CRIS = 76,
 204   EM_JAVELIN = 77,
 205   EM_FIREPATH = 78,
 206   EM_ZSP = 79,
 207   EM_MMIX = 80,
 208   EM_HUANY = 81,
 209   EM_PRISM = 82,
 210   EM_AVR = 83,
 211   EM_FR30 = 84,
 212   EM_D10V = 85,
 213   EM_D30V = 86,
 214   EM_V850 = 87,
 215   EM_M32R = 88,
 216   EM_MN10300 = 89,
 217   EM_MN10200 = 90,
 218   EM_PJ = 91,
 219   EM_OPENRISC = 92,
 220   EM_ARC_A5 = 93,
 221   EM_XTENSA = 94,
 222   EM_VIDEOCORE = 95,
 223   EM_TMM_GPP = 96,
 224   EM_NS32K = 97,
 225   EM_TPC = 98,
 226   // Some old picoJava object files use 99 (EM_PJ is correct).
 227   EM_SNP1K = 99,
 228   EM_ST200 = 100,
 229   EM_IP2K = 101,
 230   EM_MAX = 102,
 231   EM_CR = 103,
 232   EM_F2MC16 = 104,
 233   EM_MSP430 = 105,
 234   EM_BLACKFIN = 106,
 235   EM_SE_C33 = 107,
 236   EM_SEP = 108,
 237   EM_ARCA = 109,
 238   EM_UNICORE = 110,
 239   EM_ALTERA_NIOS2 = 113,
 240   EM_CRX = 114,
 241   // The Morph MT.
 242   EM_MT = 0x2530,
 243   // DLX.
 244   EM_DLX = 0x5aa5,
 245   // FRV.
 246   EM_FRV = 0x5441,
 247   // Infineon Technologies 16-bit microcontroller with C166-V2 core.
 248   EM_X16X = 0x4688,
 249   // Xstorym16
 250   EM_XSTORMY16 = 0xad45,
 251   // Renesas M32C
 252   EM_M32C = 0xfeb0,
 253   // Vitesse IQ2000
 254   EM_IQ2000 = 0xfeba,
 255   // NIOS
 256   EM_NIOS32 = 0xfebb
 257   // Old AVR objects used 0x1057 (EM_AVR is correct).
 258   // Old MSP430 objects used 0x1059 (EM_MSP430 is correct).
 259   // Old FR30 objects used 0x3330 (EM_FR30 is correct).
 260   // Old OpenRISC objects used 0x3426 and 0x8472 (EM_OPENRISC is correct).
 261   // Old D10V objects used 0x7650 (EM_D10V is correct).
 262   // Old D30V objects used 0x7676 (EM_D30V is correct).
 263   // Old IP2X objects used 0x8217 (EM_IP2K is correct).
 264   // Old PowerPC objects used 0x9025 (EM_PPC is correct).
 265   // Old Alpha objects used 0x9026 (EM_ALPHA is correct).
 266   // Old M32R objects used 0x9041 (EM_M32R is correct).
 267   // Old V850 objects used 0x9080 (EM_V850 is correct).
 268   // Old S/390 objects used 0xa390 (EM_S390 is correct).
 269   // Old Xtensa objects used 0xabc7 (EM_XTENSA is correct).
 270   // Old MN10300 objects used 0xbeef (EM_MN10300 is correct).
 271   // Old MN10200 objects used 0xdead (EM_MN10200 is correct).
 272 };
 273
 274 // Special section indices.
 275
 276 enum
 277 {
 278   SHN_UNDEF = 0,
 279   SHN_LORESERVE = 0xff00,
 280   SHN_LOPROC = 0xff00,
 281   SHN_HIPROC = 0xff1f,
 282   SHN_LOOS = 0xff20,
 283   SHN_HIOS = 0xff3f,
 284   SHN_ABS = 0xfff1,
 285   SHN_COMMON = 0xfff2,
 286   SHN_XINDEX = 0xffff,
 287   SHN_HIRESERVE = 0xffff
 288 };
 289
 290 // The valid values found in the Shdr sh_type field.
 291
 292 enum SHT
 293 {
 294   SHT_NULL = 0,
 295   SHT_PROGBITS = 1,
 296   SHT_SYMTAB = 2,
 297   SHT_STRTAB = 3,
 298   SHT_RELA = 4,
 299   SHT_HASH = 5,
 300   SHT_DYNAMIC = 6,
 301   SHT_NOTE = 7,
 302   SHT_NOBITS = 8,
 303   SHT_REL = 9,
 304   SHT_SHLIB = 10,
 305   SHT_DYNSYM = 11,
 306   SHT_INIT_ARRAY = 14,
 307   SHT_FINI_ARRAY = 15,
 308   SHT_PREINIT_ARRAY = 16,
 309   SHT_GROUP = 17,
 310   SHT_SYMTAB_SHNDX = 18,
 311   SHT_LOOS = 0x60000000,
 312   SHT_HIOS = 0x6fffffff,
 313   SHT_LOPROC = 0x70000000,
 314   SHT_HIPROC = 0x7fffffff,
 315   SHT_LOUSER = 0x80000000,
 316   SHT_HIUSER = 0xffffffff,
 317   // The remaining values are not in the standard.
 318   // List of prelink dependencies.
 319   SHT_GNU_LIBLIST = 0x6ffffff7,
 320   // Versions defined by file.
 321   SHT_SUNW_verdef = 0x6ffffffd,
 322   SHT_GNU_verdef = 0x6ffffffd,
 323   // Versions needed by file.
 324   SHT_SUNW_verneed = 0x6ffffffe,
 325   SHT_GNU_verneed = 0x6ffffffe,
 326   // Symbol versions,
 327   SHT_SUNW_versym = 0x6fffffff,
 328   SHT_GNU_versym = 0x6fffffff,
 329 };
 330
 331 // The valid bit flags found in the Shdr sh_flags field.
 332
 333 enum SHF
 334 {
 335   SHF_WRITE = 0x1,
 336   SHF_ALLOC = 0x2,
 337   SHF_EXECINSTR = 0x4,
 338   SHF_MERGE = 0x10,
 339   SHF_STRINGS = 0x20,
 340   SHF_INFO_LINK = 0x40,
 341   SHF_LINK_ORDER = 0x80,
 342   SHF_OS_NONCONFORMING = 0x100,
 343   SHF_GROUP = 0x200,
 344   SHF_TLS = 0x400,
 345   SHF_MASKOS = 0x0ff00000,
 346   SHF_MASKPROC = 0xf0000000
 347 };
 348
 349 // Bit flags which appear in the first 32-bit word of the section data
 350 // of a SHT_GROUP section.
 351
 352 enum
 353 {
 354   GRP_COMDAT = 0x1,
 355   GRP_MASKOS = 0x0ff00000,
 356   GRP_MASKPROC = 0xf0000000
 357 };
 358
 359 // The valid values found in the Phdr p_type field.
 360
 361 enum PT
 362 {
 363   PT_NULL = 0,
 364   PT_LOAD = 1,
 365   PT_DYNAMIC = 2,
 366   PT_INTERP = 3,
 367   PT_NOTE = 4,
 368   PT_SHLIB = 5,
 369   PT_PHDR = 6,
 370   PT_TLS = 7,
 371   PT_LOOS = 0x60000000,
 372   PT_HIOS = 0x6fffffff,
 373   PT_LOPROC = 0x70000000,
 374   PT_HIPROC = 0x7fffffff,
 375   // The remaining values are not in the standard.
 376   // Frame unwind information.
 377   PT_GNU_EH_FRAME = 0x6474e550,
 378   PT_SUNW_EH_FRAME = 0x6474e550,
 379   // Stack flags.
 380   PT_GNU_STACK = 0x6474e551,
 381   // Read only after relocation.
 382   PT_GNU_RELRO = 0x6474e552
 383 };
 384
 385 // The valid bit flags found in the Phdr p_flags field.
 386
 387 enum PF
 388 {
 389   PF_X = 0x1,
 390   PF_W = 0x2,
 391   PF_R = 0x4,
 392   PF_MASKOS = 0x0ff00000,
 393   PF_MASKPROC = 0xf0000000
 394 };
 395
 396 // Symbol binding from Sym st_info field.
 397
 398 enum STB
 399 {
 400   STB_LOCAL = 0,
 401   STB_GLOBAL = 1,
 402   STB_WEAK = 2,
 403   STB_LOOS = 10,
 404   STB_HIOS = 12,
 405   STB_LOPROC = 13,
 406   STB_HIPROC = 15
 407 };
 408
 409 // Symbol types from Sym st_info field.
 410
 411 enum STT
 412 {
 413   STT_NOTYPE = 0,
 414   STT_OBJECT = 1,
 415   STT_FUNC = 2,
 416   STT_SECTION = 3,
 417   STT_FILE = 4,
 418   STT_COMMON = 5,
 419   STT_TLS = 6,
 420   STT_LOOS = 10,
 421   STT_HIOS = 12,
 422   STT_LOPROC = 13,
 423   STT_HIPROC = 15
 424 };
 425
 426 inline STB
 427 elf_st_bind(unsigned char info)
 428 {
 429   return static_cast<STB>(info >> 4);
 430 }
 431
 432 inline STT
 433 elf_st_type(unsigned char info)
 434 {
 435   return static_cast<STT>(info & 0xf);
 436 }
 437
 438 inline unsigned char
 439 elf_st_info(STB bind, STT type)
 440 {
 441   return ((static_cast<unsigned char>(bind) << 4)
 442           + (static_cast<unsigned char>(type) & 0xf));
 443 }
 444
 445 // Symbol visibility from Sym st_other field.
 446
 447 enum STV
 448 {
 449   STV_DEFAULT = 0,
 450   STV_INTERNAL = 1,
 451   STV_HIDDEN = 2,
 452   STV_PROTECTED = 3
 453 };
 454
 455 inline STV
 456 elf_st_visibility(unsigned char other)
 457 {
 458   return static_cast<STV>(other & 0x3);
 459 }
 460
 461 inline unsigned char
 462 elf_st_nonvis(unsigned char other)
 463 {
 464   return static_cast<STV>(other >> 2);
 465 }
 466
 467 inline unsigned char
 468 elf_st_other(STV vis, unsigned char nonvis)
 469 {
 470   return ((nonvis << 2)
 471           + (static_cast<unsigned char>(vis) & 3));
 472 }
 473
 474 } // End namespace elfcpp.
 475
 476 // Include internal details after defining the types.
 477 #include "elfcpp_internal.h"
 478
 479 namespace elfcpp
 480 {
 481
 482 // The offset of the ELF file header in the ELF file.
 483
 484 const int file_header_offset = 0;
 485
 486 // ELF structure sizes.
 487
 488 template<int size>
 489 struct Elf_sizes
 490 {
 491   // Size of ELF file header.
 492   static const int ehdr_size = sizeof(internal::Ehdr_data<size>);
 493   // Size of ELF section header.
 494   static const int shdr_size = sizeof(internal::Shdr_data<size>);
 495   // Size of ELF symbol table entry.
 496   static const int sym_size = sizeof(internal::Sym_data<size>);
 497 };
 498
 499 // Given the address of an Elf_Word, return the value.
 500
 501 template<bool big_endian>
 502 inline Elf_Word
 503 read_elf_word(const Elf_Word* p)
 504 {
 505   return internal::convert_word<big_endian>(*p);
 506 }
 507
 508 // Accessor class for the ELF file header.
 509
 510 template<int size, bool big_endian>
 511 class Ehdr
 512 {
 513  public:
 514   Ehdr(const unsigned char* p)
 515     : p_(reinterpret_cast<const internal::Ehdr_data<size>*>(p))
 516   { }
 517
 518   const unsigned char*
 519   get_e_ident() const
 520   { return this->p_->e_ident; }
 521
 522   Elf_Half
 523   get_e_type() const
 524   { return internal::convert_half<big_endian>(this->p_->e_type); }
 525
 526   Elf_Half
 527   get_e_machine() const
 528   { return internal::convert_half<big_endian>(this->p_->e_machine); }
 529
 530   Elf_Word
 531   get_e_version() const
 532   { return internal::convert_word<big_endian>(this->p_->e_version); }
 533
 534   typename Elf_types<size>::Elf_Addr
 535   get_e_entry() const
 536   { return internal::convert_addr<size, big_endian>(this->p_->e_entry); }
 537
 538   typename Elf_types<size>::Elf_Off
 539   get_e_phoff() const
 540   { return internal::convert_off<size, big_endian>(this->p_->e_phoff); }
 541
 542   typename Elf_types<size>::Elf_Off
 543   get_e_shoff() const
 544   { return internal::convert_off<size, big_endian>(this->p_->e_shoff); }
 545
 546   Elf_Word
 547   get_e_flags() const
 548   { return internal::convert_word<big_endian>(this->p_->e_flags); }
 549
 550   Elf_Half
 551   get_e_ehsize() const
 552   { return internal::convert_half<big_endian>(this->p_->e_ehsize); }
 553
 554   Elf_Half
 555   get_e_phentsize() const
 556   { return internal::convert_half<big_endian>(this->p_->e_phentsize); }
 557
 558   Elf_Half
 559   get_e_phnum() const
 560   { return internal::convert_half<big_endian>(this->p_->e_phnum); }
 561
 562   Elf_Half
 563   get_e_shentsize() const
 564   { return internal::convert_half<big_endian>(this->p_->e_shentsize); }
 565
 566   Elf_Half
 567   get_e_shnum() const
 568   { return internal::convert_half<big_endian>(this->p_->e_shnum); }
 569
 570   Elf_Half
 571   get_e_shstrndx() const
 572   { return internal::convert_half<big_endian>(this->p_->e_shstrndx); }
 573
 574  private:
 575   const internal::Ehdr_data<size>* p_;
 576 };
 577
 578 // Accessor class for an ELF section header.
 579
 580 template<int size, bool big_endian>
 581 class Shdr
 582 {
 583  public:
 584   Shdr(const unsigned char* p)
 585     : p_(reinterpret_cast<const internal::Shdr_data<size>*>(p))
 586   { }
 587
 588   Elf_Word
 589   get_sh_name() const
 590   { return internal::convert_word<big_endian>(this->p_->sh_name); }
 591
 592   Elf_Word
 593   get_sh_type() const
 594   { return internal::convert_word<big_endian>(this->p_->sh_type); }
 595
 596   typename Elf_types<size>::Elf_WXword
 597   get_sh_flags() const
 598   { return internal::convert_wxword<size, big_endian>(this->p_->sh_flags); }
 599
 600   typename Elf_types<size>::Elf_Addr
 601   get_sh_addr() const
 602   { return internal::convert_addr<size, big_endian>(this->p_->sh_addr); }
 603
 604   typename Elf_types<size>::Elf_Off
 605   get_sh_offset() const
 606   { return internal::convert_off<size, big_endian>(this->p_->sh_offset); }
 607
 608   typename Elf_types<size>::Elf_WXword
 609   get_sh_size() const
 610   { return internal::convert_wxword<size, big_endian>(this->p_->sh_size); }
 611
 612   Elf_Word
 613   get_sh_link() const
 614   { return internal::convert_word<big_endian>(this->p_->sh_link); }
 615
 616   Elf_Word
 617   get_sh_info() const
 618   { return internal::convert_word<big_endian>(this->p_->sh_info); }
 619
 620   typename Elf_types<size>::Elf_WXword
 621   get_sh_addralign() const
 622   { return
 623       internal::convert_wxword<size, big_endian>(this->p_->sh_addralign); }
 624
 625   typename Elf_types<size>::Elf_WXword
 626   get_sh_entsize() const
 627   { return internal::convert_wxword<size, big_endian>(this->p_->sh_entsize); }
 628
 629  private:
 630   const internal::Shdr_data<size>* p_;
 631 };
 632
 633 // Accessor class for an ELF segment header.
 634
 635 template<int size, bool big_endian>
 636 class Phdr
 637 {
 638  public:
 639   Phdr(const unsigned char* p)
 640     : p_(reinterpret_cast<const internal::Phdr_data<size>*>(p))
 641   { }
 642
 643   Elf_Word
 644   get_p_type() const
 645   { return internal::convert_word<big_endian>(this->p_->p_type); }
 646
 647   typename Elf_types<size>::Elf_Off
 648   get_p_offset() const
 649   { return internal::convert_off<size, big_endian>(this->p_->p_offset); }
 650
 651   typename Elf_types<size>::Elf_Addr
 652   get_p_vaddr() const
 653   { return internal::convert_addr<size, big_endian>(this->p_->p_vaddr); }
 654
 655   typename Elf_types<size>::Elf_Addr
 656   get_p_paddr() const
 657   { return internal::convert_addr<size, big_endian>(this->p_->p_paddr); }
 658
 659   typename Elf_types<size>::Elf_WXword
 660   get_p_filesz() const
 661   { return internal::convert_wxword<size, big_endian>(this->p_->p_filesz); }
 662
 663   typename Elf_types<size>::Elf_WXword
 664   get_p_memsz() const
 665   { return internal::convert_wxword<size, big_endian>(this->p_->p_memsz); }
 666
 667   Elf_Word
 668   get_p_flags() const
 669   { return internal::convert_word<big_endian>(this->p_->p_flags); }
 670
 671   typename Elf_types<size>::Elf_WXword
 672   get_p_align() const
 673   { return internal::convert_wxword<size, big_endian>(this->p_->p_align); }
 674
 675  private:
 676   const internal::Phdr_data<size>* p_;
 677 };
 678
 679 // Accessor class for an ELF symbol table entry.
 680
 681 template<int size, bool big_endian>
 682 class Sym
 683 {
 684  public:
 685   Sym(const unsigned char* p)
 686     : p_(reinterpret_cast<const internal::Sym_data<size>*>(p))
 687   { }
 688
 689   Elf_Word
 690   get_st_name() const
 691   { return internal::convert_word<big_endian>(this->p_->st_name); }
 692
 693   typename Elf_types<size>::Elf_Addr
 694   get_st_value() const
 695   { return internal::convert_addr<size, big_endian>(this->p_->st_value); }
 696
 697   typename Elf_types<size>::Elf_WXword
 698   get_st_size() const
 699   { return internal::convert_wxword<size, big_endian>(this->p_->st_size); }
 700
 701   unsigned char
 702   get_st_info() const
 703   { return this->p_->st_info; }
 704
 705   STB
 706   get_st_bind() const
 707   { return elf_st_bind(this->get_st_info()); }
 708
 709   STT
 710   get_st_type() const
 711   { return elf_st_type(this->get_st_info()); }
 712
 713   unsigned char
 714   get_st_other() const
 715   { return this->p_->st_other; }
 716
 717   STV
 718   get_st_visibility() const
 719   { return elf_st_visibility(this->get_st_other()); }
 720
 721   unsigned char
 722   get_st_nonvis() const
 723   { return elf_st_nonvis(this->get_st_other()); }
 724
 725   Elf_Half
 726   get_st_shndx() const
 727   { return internal::convert_half<big_endian>(this->p_->st_shndx); }
 728
 729  private:
 730   const internal::Sym_data<size>* p_;
 731 };
 732
 733 // Writer class for an ELF symbol table entry.
 734
 735 template<int size, bool big_endian>
 736 class Sym_write
 737 {
 738  public:
 739   Sym_write(unsigned char* p)
 740     : p_(reinterpret_cast<internal::Sym_data<size>*>(p))
 741   { }
 742
 743   void
 744   put_st_name(Elf_Word v)
 745   { this->p_->st_name = internal::convert_word<big_endian>(v); }
 746
 747   void
 748   put_st_value(typename Elf_types<size>::Elf_Addr v)
 749   { this->p_->st_value = internal::convert_addr<size, big_endian>(v); }
 750
 751   void
 752   put_st_size(typename Elf_types<size>::Elf_WXword v)
 753   { this->p_->st_size = internal::convert_wxword<size, big_endian>(v); }
 754
 755   void
 756   put_st_info(unsigned char v)
 757   { this->p_->st_info = v; }
 758
 759   void
 760   put_st_info(STB bind, STT type)
 761   { this->p_->st_info = elf_st_info(bind, type); }
 762
 763   void
 764   put_st_other(unsigned char v)
 765   { this->p_->st_other = v; }
 766
 767   void
 768   put_st_other(STV vis, unsigned char nonvis)
 769   { this->p_->st_other = elf_st_other(vis, nonvis); }
 770
 771   void
 772   put_st_shndx(Elf_Half v)
 773   { this->p_->st_shndx = internal::convert_half<big_endian>(v); }
 774
 775   Sym<size, big_endian>
 776   sym()
 777   { return Sym<size, big_endian>(reinterpret_cast<unsigned char*>(this->p_)); }
 778
 779  private:
 780   internal::Sym_data<size>* p_;
 781 };
 782
 783 } // End namespace elfcpp.
 784
 785 #endif // !defined(ELFPCP_H)