ELF.h revision f8f87dcfceadd1b842d130303a7091ad7d7d67d0
1//===- ELF.h - ELF object file implementation -------------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file declares the ELFObjectFile template class. 11// 12//===----------------------------------------------------------------------===// 13 14#ifndef LLVM_OBJECT_ELF_H 15#define LLVM_OBJECT_ELF_H 16 17#include "llvm/ADT/DenseMap.h" 18#include "llvm/ADT/PointerIntPair.h" 19#include "llvm/ADT/SmallVector.h" 20#include "llvm/ADT/StringSwitch.h" 21#include "llvm/ADT/Triple.h" 22#include "llvm/Object/ObjectFile.h" 23#include "llvm/Support/Casting.h" 24#include "llvm/Support/ELF.h" 25#include "llvm/Support/Endian.h" 26#include "llvm/Support/ErrorHandling.h" 27#include "llvm/Support/MemoryBuffer.h" 28#include "llvm/Support/raw_ostream.h" 29#include <algorithm> 30#include <limits> 31#include <utility> 32 33namespace llvm { 34namespace object { 35 36using support::endianness; 37 38template<endianness target_endianness, std::size_t max_alignment, bool is64Bits> 39struct ELFType { 40 static const endianness TargetEndianness = target_endianness; 41 static const std::size_t MaxAlignment = max_alignment; 42 static const bool Is64Bits = is64Bits; 43}; 44 45template<typename T, int max_align> 46struct MaximumAlignment { 47 enum {value = AlignOf<T>::Alignment > max_align ? max_align 48 : AlignOf<T>::Alignment}; 49}; 50 51// Subclasses of ELFObjectFile may need this for template instantiation 52inline std::pair<unsigned char, unsigned char> 53getElfArchType(MemoryBuffer *Object) { 54 if (Object->getBufferSize() < ELF::EI_NIDENT) 55 return std::make_pair((uint8_t)ELF::ELFCLASSNONE,(uint8_t)ELF::ELFDATANONE); 56 return std::make_pair((uint8_t) Object->getBufferStart()[ELF::EI_CLASS], 57 (uint8_t) Object->getBufferStart()[ELF::EI_DATA]); 58} 59 60// Templates to choose Elf_Addr and Elf_Off depending on is64Bits. 61template<endianness target_endianness, std::size_t max_alignment> 62struct ELFDataTypeTypedefHelperCommon { 63 typedef support::detail::packed_endian_specific_integral 64 <uint16_t, target_endianness, 65 MaximumAlignment<uint16_t, max_alignment>::value> Elf_Half; 66 typedef support::detail::packed_endian_specific_integral 67 <uint32_t, target_endianness, 68 MaximumAlignment<uint32_t, max_alignment>::value> Elf_Word; 69 typedef support::detail::packed_endian_specific_integral 70 <int32_t, target_endianness, 71 MaximumAlignment<int32_t, max_alignment>::value> Elf_Sword; 72 typedef support::detail::packed_endian_specific_integral 73 <uint64_t, target_endianness, 74 MaximumAlignment<uint64_t, max_alignment>::value> Elf_Xword; 75 typedef support::detail::packed_endian_specific_integral 76 <int64_t, target_endianness, 77 MaximumAlignment<int64_t, max_alignment>::value> Elf_Sxword; 78}; 79 80template<class ELFT> 81struct ELFDataTypeTypedefHelper; 82 83/// ELF 32bit types. 84template<endianness TargetEndianness, std::size_t MaxAlign> 85struct ELFDataTypeTypedefHelper<ELFType<TargetEndianness, MaxAlign, false> > 86 : ELFDataTypeTypedefHelperCommon<TargetEndianness, MaxAlign> { 87 typedef uint32_t value_type; 88 typedef support::detail::packed_endian_specific_integral 89 <value_type, TargetEndianness, 90 MaximumAlignment<value_type, MaxAlign>::value> Elf_Addr; 91 typedef support::detail::packed_endian_specific_integral 92 <value_type, TargetEndianness, 93 MaximumAlignment<value_type, MaxAlign>::value> Elf_Off; 94}; 95 96/// ELF 64bit types. 97template<endianness TargetEndianness, std::size_t MaxAlign> 98struct ELFDataTypeTypedefHelper<ELFType<TargetEndianness, MaxAlign, true> > 99 : ELFDataTypeTypedefHelperCommon<TargetEndianness, MaxAlign> { 100 typedef uint64_t value_type; 101 typedef support::detail::packed_endian_specific_integral 102 <value_type, TargetEndianness, 103 MaximumAlignment<value_type, MaxAlign>::value> Elf_Addr; 104 typedef support::detail::packed_endian_specific_integral 105 <value_type, TargetEndianness, 106 MaximumAlignment<value_type, MaxAlign>::value> Elf_Off; 107}; 108 109// I really don't like doing this, but the alternative is copypasta. 110#define LLVM_ELF_IMPORT_TYPES(E, M, W) \ 111typedef typename ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Addr Elf_Addr; \ 112typedef typename ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Off Elf_Off; \ 113typedef typename ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Half Elf_Half; \ 114typedef typename ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Word Elf_Word; \ 115typedef typename \ 116 ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Sword Elf_Sword; \ 117typedef typename \ 118 ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Xword Elf_Xword; \ 119typedef typename \ 120 ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Sxword Elf_Sxword; 121 122#define LLVM_ELF_IMPORT_TYPES_ELFT(ELFT) \ 123 LLVM_ELF_IMPORT_TYPES(ELFT::TargetEndianness, ELFT::MaxAlignment, \ 124 ELFT::Is64Bits) 125 126// Section header. 127template<class ELFT> 128struct Elf_Shdr_Base; 129 130template<endianness TargetEndianness, std::size_t MaxAlign> 131struct Elf_Shdr_Base<ELFType<TargetEndianness, MaxAlign, false> > { 132 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false) 133 Elf_Word sh_name; // Section name (index into string table) 134 Elf_Word sh_type; // Section type (SHT_*) 135 Elf_Word sh_flags; // Section flags (SHF_*) 136 Elf_Addr sh_addr; // Address where section is to be loaded 137 Elf_Off sh_offset; // File offset of section data, in bytes 138 Elf_Word sh_size; // Size of section, in bytes 139 Elf_Word sh_link; // Section type-specific header table index link 140 Elf_Word sh_info; // Section type-specific extra information 141 Elf_Word sh_addralign;// Section address alignment 142 Elf_Word sh_entsize; // Size of records contained within the section 143}; 144 145template<endianness TargetEndianness, std::size_t MaxAlign> 146struct Elf_Shdr_Base<ELFType<TargetEndianness, MaxAlign, true> > { 147 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true) 148 Elf_Word sh_name; // Section name (index into string table) 149 Elf_Word sh_type; // Section type (SHT_*) 150 Elf_Xword sh_flags; // Section flags (SHF_*) 151 Elf_Addr sh_addr; // Address where section is to be loaded 152 Elf_Off sh_offset; // File offset of section data, in bytes 153 Elf_Xword sh_size; // Size of section, in bytes 154 Elf_Word sh_link; // Section type-specific header table index link 155 Elf_Word sh_info; // Section type-specific extra information 156 Elf_Xword sh_addralign;// Section address alignment 157 Elf_Xword sh_entsize; // Size of records contained within the section 158}; 159 160template<class ELFT> 161struct Elf_Shdr_Impl : Elf_Shdr_Base<ELFT> { 162 using Elf_Shdr_Base<ELFT>::sh_entsize; 163 using Elf_Shdr_Base<ELFT>::sh_size; 164 165 /// @brief Get the number of entities this section contains if it has any. 166 unsigned getEntityCount() const { 167 if (sh_entsize == 0) 168 return 0; 169 return sh_size / sh_entsize; 170 } 171}; 172 173template<class ELFT> 174struct Elf_Sym_Base; 175 176template<endianness TargetEndianness, std::size_t MaxAlign> 177struct Elf_Sym_Base<ELFType<TargetEndianness, MaxAlign, false> > { 178 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false) 179 Elf_Word st_name; // Symbol name (index into string table) 180 Elf_Addr st_value; // Value or address associated with the symbol 181 Elf_Word st_size; // Size of the symbol 182 unsigned char st_info; // Symbol's type and binding attributes 183 unsigned char st_other; // Must be zero; reserved 184 Elf_Half st_shndx; // Which section (header table index) it's defined in 185}; 186 187template<endianness TargetEndianness, std::size_t MaxAlign> 188struct Elf_Sym_Base<ELFType<TargetEndianness, MaxAlign, true> > { 189 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true) 190 Elf_Word st_name; // Symbol name (index into string table) 191 unsigned char st_info; // Symbol's type and binding attributes 192 unsigned char st_other; // Must be zero; reserved 193 Elf_Half st_shndx; // Which section (header table index) it's defined in 194 Elf_Addr st_value; // Value or address associated with the symbol 195 Elf_Xword st_size; // Size of the symbol 196}; 197 198template<class ELFT> 199struct Elf_Sym_Impl : Elf_Sym_Base<ELFT> { 200 using Elf_Sym_Base<ELFT>::st_info; 201 202 // These accessors and mutators correspond to the ELF32_ST_BIND, 203 // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification: 204 unsigned char getBinding() const { return st_info >> 4; } 205 unsigned char getType() const { return st_info & 0x0f; } 206 void setBinding(unsigned char b) { setBindingAndType(b, getType()); } 207 void setType(unsigned char t) { setBindingAndType(getBinding(), t); } 208 void setBindingAndType(unsigned char b, unsigned char t) { 209 st_info = (b << 4) + (t & 0x0f); 210 } 211}; 212 213/// Elf_Versym: This is the structure of entries in the SHT_GNU_versym section 214/// (.gnu.version). This structure is identical for ELF32 and ELF64. 215template<class ELFT> 216struct Elf_Versym_Impl { 217 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT) 218 Elf_Half vs_index; // Version index with flags (e.g. VERSYM_HIDDEN) 219}; 220 221template<class ELFT> 222struct Elf_Verdaux_Impl; 223 224/// Elf_Verdef: This is the structure of entries in the SHT_GNU_verdef section 225/// (.gnu.version_d). This structure is identical for ELF32 and ELF64. 226template<class ELFT> 227struct Elf_Verdef_Impl { 228 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT) 229 typedef Elf_Verdaux_Impl<ELFT> Elf_Verdaux; 230 Elf_Half vd_version; // Version of this structure (e.g. VER_DEF_CURRENT) 231 Elf_Half vd_flags; // Bitwise flags (VER_DEF_*) 232 Elf_Half vd_ndx; // Version index, used in .gnu.version entries 233 Elf_Half vd_cnt; // Number of Verdaux entries 234 Elf_Word vd_hash; // Hash of name 235 Elf_Word vd_aux; // Offset to the first Verdaux entry (in bytes) 236 Elf_Word vd_next; // Offset to the next Verdef entry (in bytes) 237 238 /// Get the first Verdaux entry for this Verdef. 239 const Elf_Verdaux *getAux() const { 240 return reinterpret_cast<const Elf_Verdaux*>((const char*)this + vd_aux); 241 } 242}; 243 244/// Elf_Verdaux: This is the structure of auxiliary data in the SHT_GNU_verdef 245/// section (.gnu.version_d). This structure is identical for ELF32 and ELF64. 246template<class ELFT> 247struct Elf_Verdaux_Impl { 248 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT) 249 Elf_Word vda_name; // Version name (offset in string table) 250 Elf_Word vda_next; // Offset to next Verdaux entry (in bytes) 251}; 252 253/// Elf_Verneed: This is the structure of entries in the SHT_GNU_verneed 254/// section (.gnu.version_r). This structure is identical for ELF32 and ELF64. 255template<class ELFT> 256struct Elf_Verneed_Impl { 257 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT) 258 Elf_Half vn_version; // Version of this structure (e.g. VER_NEED_CURRENT) 259 Elf_Half vn_cnt; // Number of associated Vernaux entries 260 Elf_Word vn_file; // Library name (string table offset) 261 Elf_Word vn_aux; // Offset to first Vernaux entry (in bytes) 262 Elf_Word vn_next; // Offset to next Verneed entry (in bytes) 263}; 264 265/// Elf_Vernaux: This is the structure of auxiliary data in SHT_GNU_verneed 266/// section (.gnu.version_r). This structure is identical for ELF32 and ELF64. 267template<class ELFT> 268struct Elf_Vernaux_Impl { 269 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT) 270 Elf_Word vna_hash; // Hash of dependency name 271 Elf_Half vna_flags; // Bitwise Flags (VER_FLAG_*) 272 Elf_Half vna_other; // Version index, used in .gnu.version entries 273 Elf_Word vna_name; // Dependency name 274 Elf_Word vna_next; // Offset to next Vernaux entry (in bytes) 275}; 276 277/// Elf_Dyn_Base: This structure matches the form of entries in the dynamic 278/// table section (.dynamic) look like. 279template<class ELFT> 280struct Elf_Dyn_Base; 281 282template<endianness TargetEndianness, std::size_t MaxAlign> 283struct Elf_Dyn_Base<ELFType<TargetEndianness, MaxAlign, false> > { 284 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false) 285 Elf_Sword d_tag; 286 union { 287 Elf_Word d_val; 288 Elf_Addr d_ptr; 289 } d_un; 290}; 291 292template<endianness TargetEndianness, std::size_t MaxAlign> 293struct Elf_Dyn_Base<ELFType<TargetEndianness, MaxAlign, true> > { 294 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true) 295 Elf_Sxword d_tag; 296 union { 297 Elf_Xword d_val; 298 Elf_Addr d_ptr; 299 } d_un; 300}; 301 302/// Elf_Dyn_Impl: This inherits from Elf_Dyn_Base, adding getters and setters. 303template<class ELFT> 304struct Elf_Dyn_Impl : Elf_Dyn_Base<ELFT> { 305 using Elf_Dyn_Base<ELFT>::d_tag; 306 using Elf_Dyn_Base<ELFT>::d_un; 307 int64_t getTag() const { return d_tag; } 308 uint64_t getVal() const { return d_un.d_val; } 309 uint64_t getPtr() const { return d_un.ptr; } 310}; 311 312// Elf_Rel: Elf Relocation 313template<class ELFT, bool isRela> 314struct Elf_Rel_Base; 315 316template<endianness TargetEndianness, std::size_t MaxAlign> 317struct Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, false>, false> { 318 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false) 319 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) 320 Elf_Word r_info; // Symbol table index and type of relocation to apply 321 322 uint32_t getRInfo(bool isMips64EL) const { 323 assert(!isMips64EL); 324 return r_info; 325 } 326 void setRInfo(uint32_t R) { 327 r_info = R; 328 } 329}; 330 331template<endianness TargetEndianness, std::size_t MaxAlign> 332struct Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, true>, false> { 333 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true) 334 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) 335 Elf_Xword r_info; // Symbol table index and type of relocation to apply 336 337 uint64_t getRInfo(bool isMips64EL) const { 338 uint64_t t = r_info; 339 if (!isMips64EL) 340 return t; 341 // Mips64 little endian has a "special" encoding of r_info. Instead of one 342 // 64 bit little endian number, it is a little endian 32 bit number followed 343 // by a 32 bit big endian number. 344 return (t << 32) | ((t >> 8) & 0xff000000) | ((t >> 24) & 0x00ff0000) | 345 ((t >> 40) & 0x0000ff00) | ((t >> 56) & 0x000000ff); 346 } 347 void setRInfo(uint64_t R) { 348 // FIXME: Add mips64el support. 349 r_info = R; 350 } 351}; 352 353template<endianness TargetEndianness, std::size_t MaxAlign> 354struct Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, false>, true> { 355 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false) 356 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) 357 Elf_Word r_info; // Symbol table index and type of relocation to apply 358 Elf_Sword r_addend; // Compute value for relocatable field by adding this 359 360 uint32_t getRInfo(bool isMips64EL) const { 361 assert(!isMips64EL); 362 return r_info; 363 } 364 void setRInfo(uint32_t R) { 365 r_info = R; 366 } 367}; 368 369template<endianness TargetEndianness, std::size_t MaxAlign> 370struct Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, true>, true> { 371 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true) 372 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) 373 Elf_Xword r_info; // Symbol table index and type of relocation to apply 374 Elf_Sxword r_addend; // Compute value for relocatable field by adding this. 375 376 uint64_t getRInfo(bool isMips64EL) const { 377 // Mips64 little endian has a "special" encoding of r_info. Instead of one 378 // 64 bit little endian number, it is a little endian 32 bit number followed 379 // by a 32 bit big endian number. 380 uint64_t t = r_info; 381 if (!isMips64EL) 382 return t; 383 return (t << 32) | ((t >> 8) & 0xff000000) | ((t >> 24) & 0x00ff0000) | 384 ((t >> 40) & 0x0000ff00) | ((t >> 56) & 0x000000ff); 385 } 386 void setRInfo(uint64_t R) { 387 // FIXME: Add mips64el support. 388 r_info = R; 389 } 390}; 391 392template<class ELFT, bool isRela> 393struct Elf_Rel_Impl; 394 395template<endianness TargetEndianness, std::size_t MaxAlign, bool isRela> 396struct Elf_Rel_Impl<ELFType<TargetEndianness, MaxAlign, true>, isRela> 397 : Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, true>, isRela> { 398 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true) 399 400 // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE, 401 // and ELF64_R_INFO macros defined in the ELF specification: 402 uint32_t getSymbol(bool isMips64EL) const { 403 return (uint32_t) (this->getRInfo(isMips64EL) >> 32); 404 } 405 uint32_t getType(bool isMips64EL) const { 406 return (uint32_t) (this->getRInfo(isMips64EL) & 0xffffffffL); 407 } 408 void setSymbol(uint32_t s) { setSymbolAndType(s, getType()); } 409 void setType(uint32_t t) { setSymbolAndType(getSymbol(), t); } 410 void setSymbolAndType(uint32_t s, uint32_t t) { 411 this->setRInfo(((uint64_t)s << 32) + (t&0xffffffffL)); 412 } 413}; 414 415template<endianness TargetEndianness, std::size_t MaxAlign, bool isRela> 416struct Elf_Rel_Impl<ELFType<TargetEndianness, MaxAlign, false>, isRela> 417 : Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, false>, isRela> { 418 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false) 419 420 // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE, 421 // and ELF32_R_INFO macros defined in the ELF specification: 422 uint32_t getSymbol(bool isMips64EL) const { 423 return this->getRInfo(isMips64EL) >> 8; 424 } 425 unsigned char getType(bool isMips64EL) const { 426 return (unsigned char) (this->getRInfo(isMips64EL) & 0x0ff); 427 } 428 void setSymbol(uint32_t s) { setSymbolAndType(s, getType()); } 429 void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); } 430 void setSymbolAndType(uint32_t s, unsigned char t) { 431 this->setRInfo((s << 8) + t); 432 } 433}; 434 435template<class ELFT> 436struct Elf_Ehdr_Impl { 437 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT) 438 unsigned char e_ident[ELF::EI_NIDENT]; // ELF Identification bytes 439 Elf_Half e_type; // Type of file (see ET_*) 440 Elf_Half e_machine; // Required architecture for this file (see EM_*) 441 Elf_Word e_version; // Must be equal to 1 442 Elf_Addr e_entry; // Address to jump to in order to start program 443 Elf_Off e_phoff; // Program header table's file offset, in bytes 444 Elf_Off e_shoff; // Section header table's file offset, in bytes 445 Elf_Word e_flags; // Processor-specific flags 446 Elf_Half e_ehsize; // Size of ELF header, in bytes 447 Elf_Half e_phentsize;// Size of an entry in the program header table 448 Elf_Half e_phnum; // Number of entries in the program header table 449 Elf_Half e_shentsize;// Size of an entry in the section header table 450 Elf_Half e_shnum; // Number of entries in the section header table 451 Elf_Half e_shstrndx; // Section header table index of section name 452 // string table 453 bool checkMagic() const { 454 return (memcmp(e_ident, ELF::ElfMagic, strlen(ELF::ElfMagic))) == 0; 455 } 456 unsigned char getFileClass() const { return e_ident[ELF::EI_CLASS]; } 457 unsigned char getDataEncoding() const { return e_ident[ELF::EI_DATA]; } 458}; 459 460template<class ELFT> 461struct Elf_Phdr_Impl; 462 463template<endianness TargetEndianness, std::size_t MaxAlign> 464struct Elf_Phdr_Impl<ELFType<TargetEndianness, MaxAlign, false> > { 465 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false) 466 Elf_Word p_type; // Type of segment 467 Elf_Off p_offset; // FileOffset where segment is located, in bytes 468 Elf_Addr p_vaddr; // Virtual Address of beginning of segment 469 Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific) 470 Elf_Word p_filesz; // Num. of bytes in file image of segment (may be zero) 471 Elf_Word p_memsz; // Num. of bytes in mem image of segment (may be zero) 472 Elf_Word p_flags; // Segment flags 473 Elf_Word p_align; // Segment alignment constraint 474}; 475 476template<endianness TargetEndianness, std::size_t MaxAlign> 477struct Elf_Phdr_Impl<ELFType<TargetEndianness, MaxAlign, true> > { 478 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true) 479 Elf_Word p_type; // Type of segment 480 Elf_Word p_flags; // Segment flags 481 Elf_Off p_offset; // FileOffset where segment is located, in bytes 482 Elf_Addr p_vaddr; // Virtual Address of beginning of segment 483 Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific) 484 Elf_Xword p_filesz; // Num. of bytes in file image of segment (may be zero) 485 Elf_Xword p_memsz; // Num. of bytes in mem image of segment (may be zero) 486 Elf_Xword p_align; // Segment alignment constraint 487}; 488 489template<class ELFT> 490class ELFObjectFile : public ObjectFile { 491 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT) 492 493public: 494 /// \brief Iterate over constant sized entities. 495 template<class EntT> 496 class ELFEntityIterator { 497 public: 498 typedef ptrdiff_t difference_type; 499 typedef EntT value_type; 500 typedef std::random_access_iterator_tag iterator_category; 501 typedef value_type &reference; 502 typedef value_type *pointer; 503 504 /// \brief Default construct iterator. 505 ELFEntityIterator() : EntitySize(0), Current(0) {} 506 ELFEntityIterator(uint64_t EntSize, const char *Start) 507 : EntitySize(EntSize) 508 , Current(Start) {} 509 510 reference operator *() { 511 assert(Current && "Attempted to dereference an invalid iterator!"); 512 return *reinterpret_cast<pointer>(Current); 513 } 514 515 pointer operator ->() { 516 assert(Current && "Attempted to dereference an invalid iterator!"); 517 return reinterpret_cast<pointer>(Current); 518 } 519 520 bool operator ==(const ELFEntityIterator &Other) { 521 return Current == Other.Current; 522 } 523 524 bool operator !=(const ELFEntityIterator &Other) { 525 return !(*this == Other); 526 } 527 528 ELFEntityIterator &operator ++() { 529 assert(Current && "Attempted to increment an invalid iterator!"); 530 Current += EntitySize; 531 return *this; 532 } 533 534 ELFEntityIterator operator ++(int) { 535 ELFEntityIterator Tmp = *this; 536 ++*this; 537 return Tmp; 538 } 539 540 ELFEntityIterator &operator =(const ELFEntityIterator &Other) { 541 EntitySize = Other.EntitySize; 542 Current = Other.Current; 543 return *this; 544 } 545 546 difference_type operator -(const ELFEntityIterator &Other) const { 547 assert(EntitySize == Other.EntitySize && 548 "Subtracting iterators of different EntitiySize!"); 549 return (Current - Other.Current) / EntitySize; 550 } 551 552 const char *get() const { return Current; } 553 554 private: 555 uint64_t EntitySize; 556 const char *Current; 557 }; 558 559 typedef Elf_Ehdr_Impl<ELFT> Elf_Ehdr; 560 typedef Elf_Shdr_Impl<ELFT> Elf_Shdr; 561 typedef Elf_Sym_Impl<ELFT> Elf_Sym; 562 typedef Elf_Dyn_Impl<ELFT> Elf_Dyn; 563 typedef Elf_Phdr_Impl<ELFT> Elf_Phdr; 564 typedef Elf_Rel_Impl<ELFT, false> Elf_Rel; 565 typedef Elf_Rel_Impl<ELFT, true> Elf_Rela; 566 typedef Elf_Verdef_Impl<ELFT> Elf_Verdef; 567 typedef Elf_Verdaux_Impl<ELFT> Elf_Verdaux; 568 typedef Elf_Verneed_Impl<ELFT> Elf_Verneed; 569 typedef Elf_Vernaux_Impl<ELFT> Elf_Vernaux; 570 typedef Elf_Versym_Impl<ELFT> Elf_Versym; 571 typedef ELFEntityIterator<const Elf_Dyn> Elf_Dyn_iterator; 572 typedef ELFEntityIterator<const Elf_Sym> Elf_Sym_iterator; 573 typedef ELFEntityIterator<const Elf_Rela> Elf_Rela_Iter; 574 typedef ELFEntityIterator<const Elf_Rel> Elf_Rel_Iter; 575 576protected: 577 // This flag is used for classof, to distinguish ELFObjectFile from 578 // its subclass. If more subclasses will be created, this flag will 579 // have to become an enum. 580 bool isDyldELFObject; 581 582private: 583 const Elf_Ehdr *Header; 584 const Elf_Shdr *SectionHeaderTable; 585 const Elf_Shdr *dot_shstrtab_sec; // Section header string table. 586 const Elf_Shdr *dot_strtab_sec; // Symbol header string table. 587 const Elf_Shdr *dot_dynstr_sec; // Dynamic symbol string table. 588 589 int SymbolTableIndex; 590 int DynamicSymbolTableIndex; 591 DenseMap<const Elf_Sym*, ELF::Elf64_Word> ExtendedSymbolTable; 592 593 const Elf_Shdr *dot_dynamic_sec; // .dynamic 594 const Elf_Shdr *dot_gnu_version_sec; // .gnu.version 595 const Elf_Shdr *dot_gnu_version_r_sec; // .gnu.version_r 596 const Elf_Shdr *dot_gnu_version_d_sec; // .gnu.version_d 597 598 // Pointer to SONAME entry in dynamic string table 599 // This is set the first time getLoadName is called. 600 mutable const char *dt_soname; 601 602private: 603 uint64_t getROffset(DataRefImpl Rel) const; 604 605 // Records for each version index the corresponding Verdef or Vernaux entry. 606 // This is filled the first time LoadVersionMap() is called. 607 class VersionMapEntry : public PointerIntPair<const void*, 1> { 608 public: 609 // If the integer is 0, this is an Elf_Verdef*. 610 // If the integer is 1, this is an Elf_Vernaux*. 611 VersionMapEntry() : PointerIntPair<const void*, 1>(NULL, 0) { } 612 VersionMapEntry(const Elf_Verdef *verdef) 613 : PointerIntPair<const void*, 1>(verdef, 0) { } 614 VersionMapEntry(const Elf_Vernaux *vernaux) 615 : PointerIntPair<const void*, 1>(vernaux, 1) { } 616 bool isNull() const { return getPointer() == NULL; } 617 bool isVerdef() const { return !isNull() && getInt() == 0; } 618 bool isVernaux() const { return !isNull() && getInt() == 1; } 619 const Elf_Verdef *getVerdef() const { 620 return isVerdef() ? (const Elf_Verdef*)getPointer() : NULL; 621 } 622 const Elf_Vernaux *getVernaux() const { 623 return isVernaux() ? (const Elf_Vernaux*)getPointer() : NULL; 624 } 625 }; 626 mutable SmallVector<VersionMapEntry, 16> VersionMap; 627 void LoadVersionDefs(const Elf_Shdr *sec) const; 628 void LoadVersionNeeds(const Elf_Shdr *ec) const; 629 void LoadVersionMap() const; 630 631 /// @brief Get the relocation section that contains \a Rel. 632 const Elf_Shdr *getRelSection(DataRefImpl Rel) const { 633 return getSection(Rel.d.a); 634 } 635 636public: 637 bool isRelocationHasAddend(DataRefImpl Rel) const; 638 template<typename T> 639 const T *getEntry(uint32_t Section, uint32_t Entry) const; 640 template<typename T> 641 const T *getEntry(const Elf_Shdr *Section, uint32_t Entry) const; 642 const Elf_Shdr *getSection(DataRefImpl index) const; 643 const Elf_Shdr *getSection(uint32_t index) const; 644 const Elf_Rel *getRel(DataRefImpl Rel) const; 645 const Elf_Rela *getRela(DataRefImpl Rela) const; 646 const char *getString(uint32_t section, uint32_t offset) const; 647 const char *getString(const Elf_Shdr *section, uint32_t offset) const; 648 error_code getSymbolVersion(const Elf_Shdr *section, 649 const Elf_Sym *Symb, 650 StringRef &Version, 651 bool &IsDefault) const; 652 void VerifyStrTab(const Elf_Shdr *sh) const; 653 654protected: 655 const Elf_Sym *getSymbol(DataRefImpl Symb) const; // FIXME: Should be private? 656 void validateSymbol(DataRefImpl Symb) const; 657 StringRef getRelocationTypeName(uint32_t Type) const; 658 659public: 660 error_code getSymbolName(const Elf_Shdr *section, 661 const Elf_Sym *Symb, 662 StringRef &Res) const; 663 error_code getSectionName(const Elf_Shdr *section, 664 StringRef &Res) const; 665 const Elf_Dyn *getDyn(DataRefImpl DynData) const; 666 error_code getSymbolVersion(SymbolRef Symb, StringRef &Version, 667 bool &IsDefault) const; 668 uint64_t getSymbolIndex(const Elf_Sym *sym) const; 669 error_code getRelocationAddend(DataRefImpl Rel, int64_t &Res) const; 670protected: 671 virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const; 672 virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const; 673 virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const; 674 virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const; 675 virtual error_code getSymbolAlignment(DataRefImpl Symb, uint32_t &Res) const; 676 virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const; 677 virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const; 678 virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const; 679 virtual error_code getSymbolType(DataRefImpl Symb, 680 SymbolRef::Type &Res) const; 681 virtual error_code getSymbolSection(DataRefImpl Symb, 682 section_iterator &Res) const; 683 virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const; 684 685 virtual error_code getLibraryNext(DataRefImpl Data, LibraryRef &Result) const; 686 virtual error_code getLibraryPath(DataRefImpl Data, StringRef &Res) const; 687 688 virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const; 689 virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const; 690 virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const; 691 virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const; 692 virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const; 693 virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const; 694 virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const; 695 virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const; 696 virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const; 697 virtual error_code isSectionRequiredForExecution(DataRefImpl Sec, 698 bool &Res) const; 699 virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const; 700 virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const; 701 virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const; 702 virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb, 703 bool &Result) const; 704 virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const; 705 virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const; 706 virtual section_iterator getRelocatedSection(DataRefImpl Sec) const; 707 708 virtual error_code getRelocationNext(DataRefImpl Rel, 709 RelocationRef &Res) const; 710 virtual error_code getRelocationAddress(DataRefImpl Rel, 711 uint64_t &Res) const; 712 virtual error_code getRelocationOffset(DataRefImpl Rel, 713 uint64_t &Res) const; 714 virtual symbol_iterator getRelocationSymbol(DataRefImpl Rel) const; 715 virtual error_code getRelocationType(DataRefImpl Rel, 716 uint64_t &Res) const; 717 virtual error_code getRelocationTypeName(DataRefImpl Rel, 718 SmallVectorImpl<char> &Result) const; 719 virtual error_code getRelocationValueString(DataRefImpl Rel, 720 SmallVectorImpl<char> &Result) const; 721 722public: 723 ELFObjectFile(MemoryBuffer *Object, error_code &ec); 724 725 bool isMips64EL() const { 726 return Header->e_machine == ELF::EM_MIPS && 727 Header->getFileClass() == ELF::ELFCLASS64 && 728 Header->getDataEncoding() == ELF::ELFDATA2LSB; 729 } 730 731 virtual symbol_iterator begin_symbols() const; 732 virtual symbol_iterator end_symbols() const; 733 734 virtual symbol_iterator begin_dynamic_symbols() const; 735 virtual symbol_iterator end_dynamic_symbols() const; 736 737 virtual section_iterator begin_sections() const; 738 virtual section_iterator end_sections() const; 739 740 virtual library_iterator begin_libraries_needed() const; 741 virtual library_iterator end_libraries_needed() const; 742 743 const Elf_Shdr *getDynamicSymbolTableSectionHeader() const { 744 return getSection(DynamicSymbolTableIndex); 745 } 746 747 const Elf_Shdr *getDynamicStringTableSectionHeader() const { 748 return dot_dynstr_sec; 749 } 750 751 Elf_Dyn_iterator begin_dynamic_table() const; 752 /// \param NULLEnd use one past the first DT_NULL entry as the end instead of 753 /// the section size. 754 Elf_Dyn_iterator end_dynamic_table(bool NULLEnd = false) const; 755 756 Elf_Sym_iterator begin_elf_dynamic_symbols() const { 757 const Elf_Shdr *DynSymtab = getDynamicSymbolTableSectionHeader(); 758 if (DynSymtab) 759 return Elf_Sym_iterator(DynSymtab->sh_entsize, 760 (const char *)base() + DynSymtab->sh_offset); 761 return Elf_Sym_iterator(0, 0); 762 } 763 764 Elf_Sym_iterator end_elf_dynamic_symbols() const { 765 const Elf_Shdr *DynSymtab = getDynamicSymbolTableSectionHeader(); 766 if (DynSymtab) 767 return Elf_Sym_iterator(DynSymtab->sh_entsize, (const char *)base() + 768 DynSymtab->sh_offset + DynSymtab->sh_size); 769 return Elf_Sym_iterator(0, 0); 770 } 771 772 Elf_Rela_Iter beginELFRela(const Elf_Shdr *sec) const { 773 return Elf_Rela_Iter(sec->sh_entsize, 774 (const char *)(base() + sec->sh_offset)); 775 } 776 777 Elf_Rela_Iter endELFRela(const Elf_Shdr *sec) const { 778 return Elf_Rela_Iter(sec->sh_entsize, (const char *) 779 (base() + sec->sh_offset + sec->sh_size)); 780 } 781 782 Elf_Rel_Iter beginELFRel(const Elf_Shdr *sec) const { 783 return Elf_Rel_Iter(sec->sh_entsize, 784 (const char *)(base() + sec->sh_offset)); 785 } 786 787 Elf_Rel_Iter endELFRel(const Elf_Shdr *sec) const { 788 return Elf_Rel_Iter(sec->sh_entsize, (const char *) 789 (base() + sec->sh_offset + sec->sh_size)); 790 } 791 792 /// \brief Iterate over program header table. 793 typedef ELFEntityIterator<const Elf_Phdr> Elf_Phdr_Iter; 794 795 Elf_Phdr_Iter begin_program_headers() const { 796 return Elf_Phdr_Iter(Header->e_phentsize, 797 (const char*)base() + Header->e_phoff); 798 } 799 800 Elf_Phdr_Iter end_program_headers() const { 801 return Elf_Phdr_Iter(Header->e_phentsize, 802 (const char*)base() + 803 Header->e_phoff + 804 (Header->e_phnum * Header->e_phentsize)); 805 } 806 807 virtual uint8_t getBytesInAddress() const; 808 virtual StringRef getFileFormatName() const; 809 virtual StringRef getObjectType() const { return "ELF"; } 810 virtual unsigned getArch() const; 811 virtual StringRef getLoadName() const; 812 virtual error_code getSectionContents(const Elf_Shdr *sec, 813 StringRef &Res) const; 814 815 uint64_t getNumSections() const; 816 uint64_t getStringTableIndex() const; 817 ELF::Elf64_Word getSymbolTableIndex(const Elf_Sym *symb) const; 818 const Elf_Ehdr *getElfHeader() const; 819 const Elf_Shdr *getSection(const Elf_Sym *symb) const; 820 const Elf_Shdr *getElfSection(section_iterator &It) const; 821 const Elf_Sym *getElfSymbol(symbol_iterator &It) const; 822 const Elf_Sym *getElfSymbol(uint32_t index) const; 823 824 // Methods for type inquiry through isa, cast, and dyn_cast 825 bool isDyldType() const { return isDyldELFObject; } 826 static inline bool classof(const Binary *v) { 827 return v->getType() == getELFType(ELFT::TargetEndianness == support::little, 828 ELFT::Is64Bits); 829 } 830}; 831 832// Use an alignment of 2 for the typedefs since that is the worst case for 833// ELF files in archives. 834typedef ELFObjectFile<ELFType<support::little, 2, false> > ELF32LEObjectFile; 835typedef ELFObjectFile<ELFType<support::little, 2, true> > ELF64LEObjectFile; 836typedef ELFObjectFile<ELFType<support::big, 2, false> > ELF32BEObjectFile; 837typedef ELFObjectFile<ELFType<support::big, 2, true> > ELF64BEObjectFile; 838 839// Iterate through the version definitions, and place each Elf_Verdef 840// in the VersionMap according to its index. 841template<class ELFT> 842void ELFObjectFile<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const { 843 unsigned vd_size = sec->sh_size; // Size of section in bytes 844 unsigned vd_count = sec->sh_info; // Number of Verdef entries 845 const char *sec_start = (const char*)base() + sec->sh_offset; 846 const char *sec_end = sec_start + vd_size; 847 // The first Verdef entry is at the start of the section. 848 const char *p = sec_start; 849 for (unsigned i = 0; i < vd_count; i++) { 850 if (p + sizeof(Elf_Verdef) > sec_end) 851 report_fatal_error("Section ended unexpectedly while scanning " 852 "version definitions."); 853 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p); 854 if (vd->vd_version != ELF::VER_DEF_CURRENT) 855 report_fatal_error("Unexpected verdef version"); 856 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION; 857 if (index >= VersionMap.size()) 858 VersionMap.resize(index+1); 859 VersionMap[index] = VersionMapEntry(vd); 860 p += vd->vd_next; 861 } 862} 863 864// Iterate through the versions needed section, and place each Elf_Vernaux 865// in the VersionMap according to its index. 866template<class ELFT> 867void ELFObjectFile<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const { 868 unsigned vn_size = sec->sh_size; // Size of section in bytes 869 unsigned vn_count = sec->sh_info; // Number of Verneed entries 870 const char *sec_start = (const char*)base() + sec->sh_offset; 871 const char *sec_end = sec_start + vn_size; 872 // The first Verneed entry is at the start of the section. 873 const char *p = sec_start; 874 for (unsigned i = 0; i < vn_count; i++) { 875 if (p + sizeof(Elf_Verneed) > sec_end) 876 report_fatal_error("Section ended unexpectedly while scanning " 877 "version needed records."); 878 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p); 879 if (vn->vn_version != ELF::VER_NEED_CURRENT) 880 report_fatal_error("Unexpected verneed version"); 881 // Iterate through the Vernaux entries 882 const char *paux = p + vn->vn_aux; 883 for (unsigned j = 0; j < vn->vn_cnt; j++) { 884 if (paux + sizeof(Elf_Vernaux) > sec_end) 885 report_fatal_error("Section ended unexpected while scanning auxiliary " 886 "version needed records."); 887 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux); 888 size_t index = vna->vna_other & ELF::VERSYM_VERSION; 889 if (index >= VersionMap.size()) 890 VersionMap.resize(index+1); 891 VersionMap[index] = VersionMapEntry(vna); 892 paux += vna->vna_next; 893 } 894 p += vn->vn_next; 895 } 896} 897 898template<class ELFT> 899void ELFObjectFile<ELFT>::LoadVersionMap() const { 900 // If there is no dynamic symtab or version table, there is nothing to do. 901 if (getDynamicStringTableSectionHeader() == NULL || 902 dot_gnu_version_sec == NULL) 903 return; 904 905 // Has the VersionMap already been loaded? 906 if (VersionMap.size() > 0) 907 return; 908 909 // The first two version indexes are reserved. 910 // Index 0 is LOCAL, index 1 is GLOBAL. 911 VersionMap.push_back(VersionMapEntry()); 912 VersionMap.push_back(VersionMapEntry()); 913 914 if (dot_gnu_version_d_sec) 915 LoadVersionDefs(dot_gnu_version_d_sec); 916 917 if (dot_gnu_version_r_sec) 918 LoadVersionNeeds(dot_gnu_version_r_sec); 919} 920 921template<class ELFT> 922void ELFObjectFile<ELFT>::validateSymbol(DataRefImpl Symb) const { 923#ifndef NDEBUG 924 const Elf_Sym *symb = getSymbol(Symb); 925 const Elf_Shdr *SymbolTableSection = getSection(Symb.d.b); 926 // FIXME: We really need to do proper error handling in the case of an invalid 927 // input file. Because we don't use exceptions, I think we'll just pass 928 // an error object around. 929 if (!( symb 930 && SymbolTableSection 931 && symb >= (const Elf_Sym*)(base() 932 + SymbolTableSection->sh_offset) 933 && symb < (const Elf_Sym*)(base() 934 + SymbolTableSection->sh_offset 935 + SymbolTableSection->sh_size))) 936 // FIXME: Proper error handling. 937 report_fatal_error("Symb must point to a valid symbol!"); 938#endif 939} 940 941template<class ELFT> 942error_code ELFObjectFile<ELFT>::getSymbolNext(DataRefImpl Symb, 943 SymbolRef &Result) const { 944 validateSymbol(Symb); 945 ++Symb.d.a; 946 Result = SymbolRef(Symb, this); 947 return object_error::success; 948} 949 950template<class ELFT> 951error_code ELFObjectFile<ELFT>::getSymbolName(DataRefImpl Symb, 952 StringRef &Result) const { 953 validateSymbol(Symb); 954 const Elf_Sym *symb = getSymbol(Symb); 955 return getSymbolName(getSection(Symb.d.b), symb, Result); 956} 957 958template<class ELFT> 959error_code ELFObjectFile<ELFT>::getSymbolVersion(SymbolRef SymRef, 960 StringRef &Version, 961 bool &IsDefault) const { 962 DataRefImpl Symb = SymRef.getRawDataRefImpl(); 963 validateSymbol(Symb); 964 const Elf_Sym *symb = getSymbol(Symb); 965 return getSymbolVersion(getSection(Symb.d.b), symb, Version, IsDefault); 966} 967 968template<class ELFT> 969ELF::Elf64_Word ELFObjectFile<ELFT> 970 ::getSymbolTableIndex(const Elf_Sym *symb) const { 971 if (symb->st_shndx == ELF::SHN_XINDEX) 972 return ExtendedSymbolTable.lookup(symb); 973 return symb->st_shndx; 974} 975 976template<class ELFT> 977const typename ELFObjectFile<ELFT>::Elf_Shdr * 978ELFObjectFile<ELFT>::getSection(const Elf_Sym *symb) const { 979 if (symb->st_shndx == ELF::SHN_XINDEX) 980 return getSection(ExtendedSymbolTable.lookup(symb)); 981 if (symb->st_shndx >= ELF::SHN_LORESERVE) 982 return 0; 983 return getSection(symb->st_shndx); 984} 985 986template<class ELFT> 987const typename ELFObjectFile<ELFT>::Elf_Ehdr * 988ELFObjectFile<ELFT>::getElfHeader() const { 989 return Header; 990} 991 992template<class ELFT> 993const typename ELFObjectFile<ELFT>::Elf_Shdr * 994ELFObjectFile<ELFT>::getElfSection(section_iterator &It) const { 995 llvm::object::DataRefImpl ShdrRef = It->getRawDataRefImpl(); 996 return reinterpret_cast<const Elf_Shdr *>(ShdrRef.p); 997} 998 999template<class ELFT> 1000const typename ELFObjectFile<ELFT>::Elf_Sym * 1001ELFObjectFile<ELFT>::getElfSymbol(symbol_iterator &It) const { 1002 return getSymbol(It->getRawDataRefImpl()); 1003} 1004 1005template<class ELFT> 1006const typename ELFObjectFile<ELFT>::Elf_Sym * 1007ELFObjectFile<ELFT>::getElfSymbol(uint32_t index) const { 1008 DataRefImpl SymbolData; 1009 SymbolData.d.a = index; 1010 SymbolData.d.b = SymbolTableIndex; 1011 return getSymbol(SymbolData); 1012} 1013 1014template<class ELFT> 1015error_code ELFObjectFile<ELFT>::getSymbolFileOffset(DataRefImpl Symb, 1016 uint64_t &Result) const { 1017 validateSymbol(Symb); 1018 const Elf_Sym *symb = getSymbol(Symb); 1019 const Elf_Shdr *Section; 1020 switch (getSymbolTableIndex(symb)) { 1021 case ELF::SHN_COMMON: 1022 // Unintialized symbols have no offset in the object file 1023 case ELF::SHN_UNDEF: 1024 Result = UnknownAddressOrSize; 1025 return object_error::success; 1026 case ELF::SHN_ABS: 1027 Result = symb->st_value; 1028 return object_error::success; 1029 default: Section = getSection(symb); 1030 } 1031 1032 switch (symb->getType()) { 1033 case ELF::STT_SECTION: 1034 Result = Section ? Section->sh_offset : UnknownAddressOrSize; 1035 return object_error::success; 1036 case ELF::STT_FUNC: 1037 case ELF::STT_OBJECT: 1038 case ELF::STT_NOTYPE: 1039 Result = symb->st_value + 1040 (Section ? Section->sh_offset : 0); 1041 return object_error::success; 1042 default: 1043 Result = UnknownAddressOrSize; 1044 return object_error::success; 1045 } 1046} 1047 1048template<class ELFT> 1049error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb, 1050 uint64_t &Result) const { 1051 validateSymbol(Symb); 1052 const Elf_Sym *symb = getSymbol(Symb); 1053 const Elf_Shdr *Section; 1054 switch (getSymbolTableIndex(symb)) { 1055 case ELF::SHN_COMMON: 1056 case ELF::SHN_UNDEF: 1057 Result = UnknownAddressOrSize; 1058 return object_error::success; 1059 case ELF::SHN_ABS: 1060 Result = symb->st_value; 1061 return object_error::success; 1062 default: Section = getSection(symb); 1063 } 1064 1065 switch (symb->getType()) { 1066 case ELF::STT_SECTION: 1067 Result = Section ? Section->sh_addr : UnknownAddressOrSize; 1068 return object_error::success; 1069 case ELF::STT_FUNC: 1070 case ELF::STT_OBJECT: 1071 case ELF::STT_NOTYPE: 1072 bool IsRelocatable; 1073 switch(Header->e_type) { 1074 case ELF::ET_EXEC: 1075 case ELF::ET_DYN: 1076 IsRelocatable = false; 1077 break; 1078 default: 1079 IsRelocatable = true; 1080 } 1081 Result = symb->st_value; 1082 1083 // Clear the ARM/Thumb indicator flag. 1084 if (Header->e_machine == ELF::EM_ARM) 1085 Result &= ~1; 1086 1087 if (IsRelocatable && Section != 0) 1088 Result += Section->sh_addr; 1089 return object_error::success; 1090 default: 1091 Result = UnknownAddressOrSize; 1092 return object_error::success; 1093 } 1094} 1095 1096template<class ELFT> 1097error_code ELFObjectFile<ELFT>::getSymbolAlignment(DataRefImpl Symb, 1098 uint32_t &Res) const { 1099 uint32_t flags; 1100 getSymbolFlags(Symb, flags); 1101 if (flags & SymbolRef::SF_Common) { 1102 uint64_t Value; 1103 getSymbolValue(Symb, Value); 1104 Res = Value; 1105 } else { 1106 Res = 0; 1107 } 1108 return object_error::success; 1109} 1110 1111template<class ELFT> 1112error_code ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb, 1113 uint64_t &Result) const { 1114 validateSymbol(Symb); 1115 const Elf_Sym *symb = getSymbol(Symb); 1116 if (symb->st_size == 0) 1117 Result = UnknownAddressOrSize; 1118 Result = symb->st_size; 1119 return object_error::success; 1120} 1121 1122template<class ELFT> 1123error_code ELFObjectFile<ELFT>::getSymbolNMTypeChar(DataRefImpl Symb, 1124 char &Result) const { 1125 validateSymbol(Symb); 1126 const Elf_Sym *symb = getSymbol(Symb); 1127 const Elf_Shdr *Section = getSection(symb); 1128 1129 char ret = '?'; 1130 1131 if (Section) { 1132 switch (Section->sh_type) { 1133 case ELF::SHT_PROGBITS: 1134 case ELF::SHT_DYNAMIC: 1135 switch (Section->sh_flags) { 1136 case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR): 1137 ret = 't'; break; 1138 case (ELF::SHF_ALLOC | ELF::SHF_WRITE): 1139 ret = 'd'; break; 1140 case ELF::SHF_ALLOC: 1141 case (ELF::SHF_ALLOC | ELF::SHF_MERGE): 1142 case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS): 1143 ret = 'r'; break; 1144 } 1145 break; 1146 case ELF::SHT_NOBITS: ret = 'b'; 1147 } 1148 } 1149 1150 switch (getSymbolTableIndex(symb)) { 1151 case ELF::SHN_UNDEF: 1152 if (ret == '?') 1153 ret = 'U'; 1154 break; 1155 case ELF::SHN_ABS: ret = 'a'; break; 1156 case ELF::SHN_COMMON: ret = 'c'; break; 1157 } 1158 1159 switch (symb->getBinding()) { 1160 case ELF::STB_GLOBAL: ret = ::toupper(ret); break; 1161 case ELF::STB_WEAK: 1162 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF) 1163 ret = 'w'; 1164 else 1165 if (symb->getType() == ELF::STT_OBJECT) 1166 ret = 'V'; 1167 else 1168 ret = 'W'; 1169 } 1170 1171 if (ret == '?' && symb->getType() == ELF::STT_SECTION) { 1172 StringRef name; 1173 if (error_code ec = getSymbolName(Symb, name)) 1174 return ec; 1175 Result = StringSwitch<char>(name) 1176 .StartsWith(".debug", 'N') 1177 .StartsWith(".note", 'n') 1178 .Default('?'); 1179 return object_error::success; 1180 } 1181 1182 Result = ret; 1183 return object_error::success; 1184} 1185 1186template<class ELFT> 1187error_code ELFObjectFile<ELFT>::getSymbolType(DataRefImpl Symb, 1188 SymbolRef::Type &Result) const { 1189 validateSymbol(Symb); 1190 const Elf_Sym *symb = getSymbol(Symb); 1191 1192 switch (symb->getType()) { 1193 case ELF::STT_NOTYPE: 1194 Result = SymbolRef::ST_Unknown; 1195 break; 1196 case ELF::STT_SECTION: 1197 Result = SymbolRef::ST_Debug; 1198 break; 1199 case ELF::STT_FILE: 1200 Result = SymbolRef::ST_File; 1201 break; 1202 case ELF::STT_FUNC: 1203 Result = SymbolRef::ST_Function; 1204 break; 1205 case ELF::STT_OBJECT: 1206 case ELF::STT_COMMON: 1207 case ELF::STT_TLS: 1208 Result = SymbolRef::ST_Data; 1209 break; 1210 default: 1211 Result = SymbolRef::ST_Other; 1212 break; 1213 } 1214 return object_error::success; 1215} 1216 1217template<class ELFT> 1218error_code ELFObjectFile<ELFT>::getSymbolFlags(DataRefImpl Symb, 1219 uint32_t &Result) const { 1220 validateSymbol(Symb); 1221 const Elf_Sym *symb = getSymbol(Symb); 1222 1223 Result = SymbolRef::SF_None; 1224 1225 if (symb->getBinding() != ELF::STB_LOCAL) 1226 Result |= SymbolRef::SF_Global; 1227 1228 if (symb->getBinding() == ELF::STB_WEAK) 1229 Result |= SymbolRef::SF_Weak; 1230 1231 if (symb->st_shndx == ELF::SHN_ABS) 1232 Result |= SymbolRef::SF_Absolute; 1233 1234 if (symb->getType() == ELF::STT_FILE || 1235 symb->getType() == ELF::STT_SECTION) 1236 Result |= SymbolRef::SF_FormatSpecific; 1237 1238 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF) 1239 Result |= SymbolRef::SF_Undefined; 1240 1241 if (symb->getType() == ELF::STT_COMMON || 1242 getSymbolTableIndex(symb) == ELF::SHN_COMMON) 1243 Result |= SymbolRef::SF_Common; 1244 1245 if (symb->getType() == ELF::STT_TLS) 1246 Result |= SymbolRef::SF_ThreadLocal; 1247 1248 return object_error::success; 1249} 1250 1251template<class ELFT> 1252error_code ELFObjectFile<ELFT>::getSymbolSection(DataRefImpl Symb, 1253 section_iterator &Res) const { 1254 validateSymbol(Symb); 1255 const Elf_Sym *symb = getSymbol(Symb); 1256 const Elf_Shdr *sec = getSection(symb); 1257 if (!sec) 1258 Res = end_sections(); 1259 else { 1260 DataRefImpl Sec; 1261 Sec.p = reinterpret_cast<intptr_t>(sec); 1262 Res = section_iterator(SectionRef(Sec, this)); 1263 } 1264 return object_error::success; 1265} 1266 1267template<class ELFT> 1268error_code ELFObjectFile<ELFT>::getSymbolValue(DataRefImpl Symb, 1269 uint64_t &Val) const { 1270 validateSymbol(Symb); 1271 const Elf_Sym *symb = getSymbol(Symb); 1272 Val = symb->st_value; 1273 return object_error::success; 1274} 1275 1276template<class ELFT> 1277error_code ELFObjectFile<ELFT>::getSectionNext(DataRefImpl Sec, 1278 SectionRef &Result) const { 1279 const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p); 1280 sec += Header->e_shentsize; 1281 Sec.p = reinterpret_cast<intptr_t>(sec); 1282 Result = SectionRef(Sec, this); 1283 return object_error::success; 1284} 1285 1286template<class ELFT> 1287error_code ELFObjectFile<ELFT>::getSectionName(DataRefImpl Sec, 1288 StringRef &Result) const { 1289 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1290 Result = StringRef(getString(dot_shstrtab_sec, sec->sh_name)); 1291 return object_error::success; 1292} 1293 1294template<class ELFT> 1295error_code ELFObjectFile<ELFT>::getSectionAddress(DataRefImpl Sec, 1296 uint64_t &Result) const { 1297 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1298 Result = sec->sh_addr; 1299 return object_error::success; 1300} 1301 1302template<class ELFT> 1303error_code ELFObjectFile<ELFT>::getSectionSize(DataRefImpl Sec, 1304 uint64_t &Result) const { 1305 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1306 Result = sec->sh_size; 1307 return object_error::success; 1308} 1309 1310template<class ELFT> 1311error_code ELFObjectFile<ELFT>::getSectionContents(DataRefImpl Sec, 1312 StringRef &Result) const { 1313 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1314 const char *start = (const char*)base() + sec->sh_offset; 1315 Result = StringRef(start, sec->sh_size); 1316 return object_error::success; 1317} 1318 1319template<class ELFT> 1320error_code ELFObjectFile<ELFT>::getSectionContents(const Elf_Shdr *Sec, 1321 StringRef &Result) const { 1322 const char *start = (const char*)base() + Sec->sh_offset; 1323 Result = StringRef(start, Sec->sh_size); 1324 return object_error::success; 1325} 1326 1327template<class ELFT> 1328error_code ELFObjectFile<ELFT>::getSectionAlignment(DataRefImpl Sec, 1329 uint64_t &Result) const { 1330 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1331 Result = sec->sh_addralign; 1332 return object_error::success; 1333} 1334 1335template<class ELFT> 1336error_code ELFObjectFile<ELFT>::isSectionText(DataRefImpl Sec, 1337 bool &Result) const { 1338 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1339 if (sec->sh_flags & ELF::SHF_EXECINSTR) 1340 Result = true; 1341 else 1342 Result = false; 1343 return object_error::success; 1344} 1345 1346template<class ELFT> 1347error_code ELFObjectFile<ELFT>::isSectionData(DataRefImpl Sec, 1348 bool &Result) const { 1349 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1350 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE) 1351 && sec->sh_type == ELF::SHT_PROGBITS) 1352 Result = true; 1353 else 1354 Result = false; 1355 return object_error::success; 1356} 1357 1358template<class ELFT> 1359error_code ELFObjectFile<ELFT>::isSectionBSS(DataRefImpl Sec, 1360 bool &Result) const { 1361 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1362 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE) 1363 && sec->sh_type == ELF::SHT_NOBITS) 1364 Result = true; 1365 else 1366 Result = false; 1367 return object_error::success; 1368} 1369 1370template<class ELFT> 1371error_code ELFObjectFile<ELFT>::isSectionRequiredForExecution( 1372 DataRefImpl Sec, bool &Result) const { 1373 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1374 if (sec->sh_flags & ELF::SHF_ALLOC) 1375 Result = true; 1376 else 1377 Result = false; 1378 return object_error::success; 1379} 1380 1381template<class ELFT> 1382error_code ELFObjectFile<ELFT>::isSectionVirtual(DataRefImpl Sec, 1383 bool &Result) const { 1384 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1385 if (sec->sh_type == ELF::SHT_NOBITS) 1386 Result = true; 1387 else 1388 Result = false; 1389 return object_error::success; 1390} 1391 1392template<class ELFT> 1393error_code ELFObjectFile<ELFT>::isSectionZeroInit(DataRefImpl Sec, 1394 bool &Result) const { 1395 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1396 // For ELF, all zero-init sections are virtual (that is, they occupy no space 1397 // in the object image) and vice versa. 1398 Result = sec->sh_type == ELF::SHT_NOBITS; 1399 return object_error::success; 1400} 1401 1402template<class ELFT> 1403error_code ELFObjectFile<ELFT>::isSectionReadOnlyData(DataRefImpl Sec, 1404 bool &Result) const { 1405 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1406 if (sec->sh_flags & ELF::SHF_WRITE || sec->sh_flags & ELF::SHF_EXECINSTR) 1407 Result = false; 1408 else 1409 Result = true; 1410 return object_error::success; 1411} 1412 1413template<class ELFT> 1414error_code ELFObjectFile<ELFT>::sectionContainsSymbol(DataRefImpl Sec, 1415 DataRefImpl Symb, 1416 bool &Result) const { 1417 validateSymbol(Symb); 1418 1419 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1420 const Elf_Sym *symb = getSymbol(Symb); 1421 1422 unsigned shndx = symb->st_shndx; 1423 bool Reserved = shndx >= ELF::SHN_LORESERVE 1424 && shndx <= ELF::SHN_HIRESERVE; 1425 1426 Result = !Reserved && (sec == getSection(symb->st_shndx)); 1427 return object_error::success; 1428} 1429 1430template<class ELFT> 1431relocation_iterator 1432ELFObjectFile<ELFT>::getSectionRelBegin(DataRefImpl Sec) const { 1433 DataRefImpl RelData; 1434 uintptr_t SHT = reinterpret_cast<uintptr_t>(SectionHeaderTable); 1435 RelData.d.a = (Sec.p - SHT) / Header->e_shentsize; 1436 RelData.d.b = 0; 1437 return relocation_iterator(RelocationRef(RelData, this)); 1438} 1439 1440template<class ELFT> 1441relocation_iterator 1442ELFObjectFile<ELFT>::getSectionRelEnd(DataRefImpl Sec) const { 1443 DataRefImpl RelData; 1444 uintptr_t SHT = reinterpret_cast<uintptr_t>(SectionHeaderTable); 1445 const Elf_Shdr *S = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1446 RelData.d.a = (Sec.p - SHT) / Header->e_shentsize; 1447 if (S->sh_type != ELF::SHT_RELA && S->sh_type != ELF::SHT_REL) 1448 RelData.d.b = 0; 1449 else 1450 RelData.d.b = S->sh_size / S->sh_entsize; 1451 1452 return relocation_iterator(RelocationRef(RelData, this)); 1453} 1454 1455template <class ELFT> 1456section_iterator 1457ELFObjectFile<ELFT>::getRelocatedSection(DataRefImpl Sec) const { 1458 if (Header->e_type != ELF::ET_REL) 1459 return end_sections(); 1460 1461 const Elf_Shdr *S = reinterpret_cast<const Elf_Shdr *>(Sec.p); 1462 unsigned sh_type = S->sh_type; 1463 if (sh_type != ELF::SHT_RELA && sh_type != ELF::SHT_REL) 1464 return end_sections(); 1465 1466 assert(S->sh_info != 0); 1467 const Elf_Shdr *R = getSection(S->sh_info); 1468 DataRefImpl D; 1469 D.p = reinterpret_cast<uintptr_t>(R); 1470 return section_iterator(SectionRef(D, this)); 1471} 1472 1473// Relocations 1474template<class ELFT> 1475error_code ELFObjectFile<ELFT>::getRelocationNext(DataRefImpl Rel, 1476 RelocationRef &Result) const { 1477 ++Rel.d.b; 1478 Result = RelocationRef(Rel, this); 1479 return object_error::success; 1480} 1481 1482template <class ELFT> 1483symbol_iterator 1484ELFObjectFile<ELFT>::getRelocationSymbol(DataRefImpl Rel) const { 1485 uint32_t symbolIdx; 1486 const Elf_Shdr *sec = getRelSection(Rel); 1487 switch (sec->sh_type) { 1488 default : 1489 report_fatal_error("Invalid section type in Rel!"); 1490 case ELF::SHT_REL : { 1491 symbolIdx = getRel(Rel)->getSymbol(isMips64EL()); 1492 break; 1493 } 1494 case ELF::SHT_RELA : { 1495 symbolIdx = getRela(Rel)->getSymbol(isMips64EL()); 1496 break; 1497 } 1498 } 1499 if (!symbolIdx) 1500 return end_symbols(); 1501 1502 DataRefImpl SymbolData; 1503 SymbolData.d.a = symbolIdx; 1504 SymbolData.d.b = sec->sh_link; 1505 return symbol_iterator(SymbolRef(SymbolData, this)); 1506} 1507 1508template<class ELFT> 1509error_code ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel, 1510 uint64_t &Result) const { 1511 assert((Header->e_type == ELF::ET_EXEC || Header->e_type == ELF::ET_DYN) && 1512 "Only executable and shared objects files have addresses"); 1513 Result = getROffset(Rel); 1514 return object_error::success; 1515} 1516 1517template<class ELFT> 1518error_code ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel, 1519 uint64_t &Result) const { 1520 assert(Header->e_type == ELF::ET_REL && 1521 "Only relocatable object files have relocation offsets"); 1522 Result = getROffset(Rel); 1523 return object_error::success; 1524} 1525 1526template<class ELFT> 1527uint64_t ELFObjectFile<ELFT>::getROffset(DataRefImpl Rel) const { 1528 const Elf_Shdr *sec = getRelSection(Rel); 1529 switch (sec->sh_type) { 1530 default: 1531 report_fatal_error("Invalid section type in Rel!"); 1532 case ELF::SHT_REL: 1533 return getRel(Rel)->r_offset; 1534 case ELF::SHT_RELA: 1535 return getRela(Rel)->r_offset; 1536 } 1537} 1538 1539template<class ELFT> 1540error_code ELFObjectFile<ELFT>::getRelocationType(DataRefImpl Rel, 1541 uint64_t &Result) const { 1542 const Elf_Shdr *sec = getRelSection(Rel); 1543 switch (sec->sh_type) { 1544 default : 1545 report_fatal_error("Invalid section type in Rel!"); 1546 case ELF::SHT_REL : { 1547 Result = getRel(Rel)->getType(isMips64EL()); 1548 break; 1549 } 1550 case ELF::SHT_RELA : { 1551 Result = getRela(Rel)->getType(isMips64EL()); 1552 break; 1553 } 1554 } 1555 return object_error::success; 1556} 1557 1558#define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \ 1559 case ELF::enum: Res = #enum; break; 1560 1561template<class ELFT> 1562StringRef ELFObjectFile<ELFT>::getRelocationTypeName(uint32_t Type) const { 1563 StringRef Res = "Unknown"; 1564 switch (Header->e_machine) { 1565 case ELF::EM_X86_64: 1566 switch (Type) { 1567 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE); 1568 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64); 1569 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32); 1570 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32); 1571 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32); 1572 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY); 1573 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT); 1574 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT); 1575 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE); 1576 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL); 1577 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32); 1578 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S); 1579 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16); 1580 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16); 1581 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8); 1582 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8); 1583 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64); 1584 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64); 1585 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64); 1586 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD); 1587 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD); 1588 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32); 1589 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF); 1590 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32); 1591 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64); 1592 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64); 1593 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32); 1594 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT64); 1595 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL64); 1596 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC64); 1597 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPLT64); 1598 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLTOFF64); 1599 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32); 1600 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64); 1601 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC); 1602 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL); 1603 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC); 1604 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_IRELATIVE); 1605 default: break; 1606 } 1607 break; 1608 case ELF::EM_386: 1609 switch (Type) { 1610 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE); 1611 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32); 1612 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32); 1613 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32); 1614 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32); 1615 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY); 1616 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT); 1617 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT); 1618 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE); 1619 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF); 1620 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC); 1621 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT); 1622 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF); 1623 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE); 1624 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE); 1625 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE); 1626 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD); 1627 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM); 1628 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16); 1629 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16); 1630 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8); 1631 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8); 1632 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32); 1633 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH); 1634 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL); 1635 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP); 1636 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32); 1637 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH); 1638 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL); 1639 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP); 1640 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32); 1641 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32); 1642 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32); 1643 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32); 1644 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32); 1645 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32); 1646 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC); 1647 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL); 1648 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC); 1649 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE); 1650 default: break; 1651 } 1652 break; 1653 case ELF::EM_MIPS: 1654 switch (Type) { 1655 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_NONE); 1656 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_16); 1657 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_32); 1658 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_REL32); 1659 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_26); 1660 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HI16); 1661 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_LO16); 1662 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GPREL16); 1663 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_LITERAL); 1664 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT16); 1665 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PC16); 1666 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL16); 1667 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GPREL32); 1668 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SHIFT5); 1669 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SHIFT6); 1670 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_64); 1671 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_DISP); 1672 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_PAGE); 1673 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_OFST); 1674 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_HI16); 1675 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_LO16); 1676 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SUB); 1677 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_INSERT_A); 1678 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_INSERT_B); 1679 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_DELETE); 1680 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HIGHER); 1681 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HIGHEST); 1682 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL_HI16); 1683 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL_LO16); 1684 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SCN_DISP); 1685 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_REL16); 1686 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_ADD_IMMEDIATE); 1687 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PJUMP); 1688 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_RELGOT); 1689 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_JALR); 1690 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPMOD32); 1691 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL32); 1692 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPMOD64); 1693 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL64); 1694 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_GD); 1695 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_LDM); 1696 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL_HI16); 1697 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL_LO16); 1698 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_GOTTPREL); 1699 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL32); 1700 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL64); 1701 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_HI16); 1702 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_LO16); 1703 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GLOB_DAT); 1704 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_COPY); 1705 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_JUMP_SLOT); 1706 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_NUM); 1707 default: break; 1708 } 1709 break; 1710 case ELF::EM_AARCH64: 1711 switch (Type) { 1712 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_NONE); 1713 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS64); 1714 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS32); 1715 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS16); 1716 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL64); 1717 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL32); 1718 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL16); 1719 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G0); 1720 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G0_NC); 1721 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G1); 1722 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G1_NC); 1723 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G2); 1724 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G2_NC); 1725 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G3); 1726 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G0); 1727 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G1); 1728 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G2); 1729 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LD_PREL_LO19); 1730 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_PREL_LO21); 1731 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_PREL_PG_HI21); 1732 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADD_ABS_LO12_NC); 1733 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST8_ABS_LO12_NC); 1734 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TSTBR14); 1735 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_CONDBR19); 1736 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_JUMP26); 1737 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_CALL26); 1738 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST16_ABS_LO12_NC); 1739 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST32_ABS_LO12_NC); 1740 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST64_ABS_LO12_NC); 1741 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST128_ABS_LO12_NC); 1742 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_GOT_PAGE); 1743 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LD64_GOT_LO12_NC); 1744 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G2); 1745 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G1); 1746 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC); 1747 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G0); 1748 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC); 1749 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_HI12); 1750 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_LO12); 1751 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC); 1752 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST8_DTPREL_LO12); 1753 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC); 1754 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST16_DTPREL_LO12); 1755 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC); 1756 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST32_DTPREL_LO12); 1757 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC); 1758 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST64_DTPREL_LO12); 1759 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC); 1760 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_MOVW_GOTTPREL_G1); 1761 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC); 1762 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21); 1763 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC); 1764 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_LD_GOTTPREL_PREL19); 1765 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G2); 1766 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G1); 1767 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G1_NC); 1768 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G0); 1769 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G0_NC); 1770 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_HI12); 1771 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_LO12); 1772 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_LO12_NC); 1773 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST8_TPREL_LO12); 1774 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC); 1775 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST16_TPREL_LO12); 1776 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC); 1777 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST32_TPREL_LO12); 1778 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC); 1779 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST64_TPREL_LO12); 1780 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC); 1781 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_ADR_PAGE); 1782 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_LD64_LO12_NC); 1783 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_ADD_LO12_NC); 1784 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_CALL); 1785 default: break; 1786 } 1787 break; 1788 case ELF::EM_ARM: 1789 switch (Type) { 1790 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_NONE); 1791 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PC24); 1792 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32); 1793 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32); 1794 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G0); 1795 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS16); 1796 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS12); 1797 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ABS5); 1798 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS8); 1799 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL32); 1800 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_CALL); 1801 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC8); 1802 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BREL_ADJ); 1803 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESC); 1804 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_SWI8); 1805 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_XPC25); 1806 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_XPC22); 1807 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPMOD32); 1808 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPOFF32); 1809 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_TPOFF32); 1810 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_COPY); 1811 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GLOB_DAT); 1812 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP_SLOT); 1813 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_RELATIVE); 1814 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF32); 1815 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_PREL); 1816 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL); 1817 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32); 1818 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_CALL); 1819 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP24); 1820 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP24); 1821 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_ABS); 1822 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_7_0); 1823 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_15_8); 1824 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_23_15); 1825 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SBREL_11_0_NC); 1826 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_19_12_NC); 1827 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_27_20_CK); 1828 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET1); 1829 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL31); 1830 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_V4BX); 1831 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET2); 1832 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PREL31); 1833 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_ABS_NC); 1834 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_ABS); 1835 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_PREL_NC); 1836 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_PREL); 1837 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_ABS_NC); 1838 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_ABS); 1839 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_PREL_NC); 1840 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_PREL); 1841 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP19); 1842 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP6); 1843 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ALU_PREL_11_0); 1844 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC12); 1845 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32_NOI); 1846 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32_NOI); 1847 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0_NC); 1848 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0); 1849 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1_NC); 1850 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1); 1851 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G2); 1852 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G1); 1853 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G2); 1854 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G0); 1855 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G1); 1856 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G2); 1857 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G0); 1858 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G1); 1859 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G2); 1860 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0_NC); 1861 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0); 1862 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1_NC); 1863 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1); 1864 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G2); 1865 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G0); 1866 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G1); 1867 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G2); 1868 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G0); 1869 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G1); 1870 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G2); 1871 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G0); 1872 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G1); 1873 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G2); 1874 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL_NC); 1875 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_BREL); 1876 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL); 1877 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL_NC); 1878 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_BREL); 1879 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL); 1880 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GOTDESC); 1881 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_CALL); 1882 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESCSEQ); 1883 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_CALL); 1884 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32_ABS); 1885 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_ABS); 1886 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_PREL); 1887 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL12); 1888 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF12); 1889 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTRELAX); 1890 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTENTRY); 1891 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTINHERIT); 1892 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP11); 1893 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP8); 1894 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GD32); 1895 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDM32); 1896 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO32); 1897 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE32); 1898 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE32); 1899 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO12); 1900 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE12); 1901 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE12GP); 1902 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_0); 1903 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_1); 1904 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_2); 1905 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_3); 1906 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_4); 1907 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_5); 1908 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_6); 1909 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_7); 1910 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_8); 1911 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_9); 1912 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_10); 1913 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_11); 1914 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_12); 1915 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_13); 1916 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_14); 1917 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_15); 1918 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ME_TOO); 1919 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ16); 1920 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ32); 1921 default: break; 1922 } 1923 break; 1924 case ELF::EM_HEXAGON: 1925 switch (Type) { 1926 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_NONE); 1927 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL); 1928 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL); 1929 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL); 1930 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_LO16); 1931 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HI16); 1932 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32); 1933 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16); 1934 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8); 1935 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_0); 1936 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_1); 1937 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_2); 1938 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_3); 1939 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HL16); 1940 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL); 1941 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL); 1942 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B32_PCREL_X); 1943 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_6_X); 1944 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL_X); 1945 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL_X); 1946 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL_X); 1947 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL_X); 1948 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL_X); 1949 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16_X); 1950 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_12_X); 1951 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_11_X); 1952 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_10_X); 1953 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_9_X); 1954 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8_X); 1955 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_7_X); 1956 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_X); 1957 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_PCREL); 1958 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_COPY); 1959 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GLOB_DAT); 1960 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_JMP_SLOT); 1961 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_RELATIVE); 1962 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_PLT_B22_PCREL); 1963 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_LO16); 1964 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_HI16); 1965 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32); 1966 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_LO16); 1967 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_HI16); 1968 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32); 1969 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16); 1970 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPMOD_32); 1971 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_LO16); 1972 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_HI16); 1973 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32); 1974 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16); 1975 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_PLT_B22_PCREL); 1976 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_LO16); 1977 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_HI16); 1978 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32); 1979 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16); 1980 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_LO16); 1981 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_HI16); 1982 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32); 1983 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_LO16); 1984 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_HI16); 1985 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32); 1986 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16); 1987 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_LO16); 1988 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_HI16); 1989 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32); 1990 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16); 1991 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_PCREL_X); 1992 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32_6_X); 1993 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_16_X); 1994 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_11_X); 1995 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32_6_X); 1996 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16_X); 1997 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_11_X); 1998 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32_6_X); 1999 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16_X); 2000 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_11_X); 2001 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32_6_X); 2002 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16_X); 2003 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_11_X); 2004 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32_6_X); 2005 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_16_X); 2006 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32_6_X); 2007 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16_X); 2008 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_11_X); 2009 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32_6_X); 2010 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16_X); 2011 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_11_X); 2012 default: break; 2013 } 2014 break; 2015 case ELF::EM_PPC: 2016 switch (Type) { 2017 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_NONE); 2018 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR32); 2019 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR24); 2020 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16); 2021 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_LO); 2022 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_HI); 2023 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_HA); 2024 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14); 2025 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14_BRTAKEN); 2026 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14_BRNTAKEN); 2027 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL24); 2028 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14); 2029 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14_BRTAKEN); 2030 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14_BRNTAKEN); 2031 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL32); 2032 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_TPREL16_LO); 2033 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_TPREL16_HA); 2034 default: break; 2035 } 2036 break; 2037 case ELF::EM_PPC64: 2038 switch (Type) { 2039 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_NONE); 2040 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR32); 2041 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR24); 2042 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16); 2043 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_LO); 2044 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HI); 2045 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HA); 2046 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14); 2047 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14_BRTAKEN); 2048 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14_BRNTAKEN); 2049 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL24); 2050 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14); 2051 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14_BRTAKEN); 2052 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14_BRNTAKEN); 2053 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL32); 2054 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR64); 2055 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HIGHER); 2056 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HIGHEST); 2057 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL64); 2058 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16); 2059 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_LO); 2060 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_HI); 2061 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_HA); 2062 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC); 2063 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_DS); 2064 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_LO_DS); 2065 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_DS); 2066 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_LO_DS); 2067 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLS); 2068 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TPREL16_LO); 2069 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TPREL16_HA); 2070 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_DTPREL16_LO); 2071 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_DTPREL16_HA); 2072 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSGD16_LO); 2073 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSGD16_HA); 2074 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSLD16_LO); 2075 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSLD16_HA); 2076 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TPREL16_LO_DS); 2077 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TPREL16_HA); 2078 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLSGD); 2079 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLSLD); 2080 default: break; 2081 } 2082 break; 2083 case ELF::EM_S390: 2084 switch (Type) { 2085 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_NONE); 2086 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_8); 2087 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_12); 2088 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_16); 2089 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_32); 2090 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC32); 2091 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT12); 2092 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT32); 2093 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT32); 2094 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_COPY); 2095 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GLOB_DAT); 2096 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_JMP_SLOT); 2097 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_RELATIVE); 2098 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF); 2099 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPC); 2100 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT16); 2101 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC16); 2102 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC16DBL); 2103 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT16DBL); 2104 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC32DBL); 2105 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT32DBL); 2106 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPCDBL); 2107 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_64); 2108 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC64); 2109 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT64); 2110 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT64); 2111 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTENT); 2112 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF16); 2113 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF64); 2114 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT12); 2115 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT16); 2116 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT32); 2117 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT64); 2118 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLTENT); 2119 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF16); 2120 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF32); 2121 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF64); 2122 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LOAD); 2123 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GDCALL); 2124 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDCALL); 2125 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GD32); 2126 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GD64); 2127 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE12); 2128 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE32); 2129 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE64); 2130 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDM32); 2131 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDM64); 2132 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IE32); 2133 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IE64); 2134 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IEENT); 2135 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LE32); 2136 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LE64); 2137 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDO32); 2138 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDO64); 2139 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_DTPMOD); 2140 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_DTPOFF); 2141 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_TPOFF); 2142 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_20); 2143 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT20); 2144 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT20); 2145 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE20); 2146 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_IRELATIVE); 2147 default: break; 2148 } 2149 break; 2150 default: break; 2151 } 2152 return Res; 2153} 2154 2155#undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME 2156 2157template<class ELFT> 2158error_code ELFObjectFile<ELFT>::getRelocationTypeName( 2159 DataRefImpl Rel, SmallVectorImpl<char> &Result) const { 2160 const Elf_Shdr *sec = getRelSection(Rel); 2161 uint32_t type; 2162 switch (sec->sh_type) { 2163 default : 2164 return object_error::parse_failed; 2165 case ELF::SHT_REL : { 2166 type = getRel(Rel)->getType(isMips64EL()); 2167 break; 2168 } 2169 case ELF::SHT_RELA : { 2170 type = getRela(Rel)->getType(isMips64EL()); 2171 break; 2172 } 2173 } 2174 2175 if (!isMips64EL()) { 2176 StringRef Name = getRelocationTypeName(type); 2177 Result.append(Name.begin(), Name.end()); 2178 } else { 2179 uint8_t Type1 = (type >> 0) & 0xFF; 2180 uint8_t Type2 = (type >> 8) & 0xFF; 2181 uint8_t Type3 = (type >> 16) & 0xFF; 2182 2183 // Concat all three relocation type names. 2184 StringRef Name = getRelocationTypeName(Type1); 2185 Result.append(Name.begin(), Name.end()); 2186 2187 Name = getRelocationTypeName(Type2); 2188 Result.append(1, '/'); 2189 Result.append(Name.begin(), Name.end()); 2190 2191 Name = getRelocationTypeName(Type3); 2192 Result.append(1, '/'); 2193 Result.append(Name.begin(), Name.end()); 2194 } 2195 2196 return object_error::success; 2197} 2198 2199template<class ELFT> 2200error_code ELFObjectFile<ELFT>::getRelocationAddend( 2201 DataRefImpl Rel, int64_t &Result) const { 2202 const Elf_Shdr *sec = getRelSection(Rel); 2203 switch (sec->sh_type) { 2204 default : 2205 report_fatal_error("Invalid section type in Rel!"); 2206 case ELF::SHT_REL : { 2207 Result = 0; 2208 return object_error::success; 2209 } 2210 case ELF::SHT_RELA : { 2211 Result = getRela(Rel)->r_addend; 2212 return object_error::success; 2213 } 2214 } 2215} 2216 2217template<class ELFT> 2218error_code ELFObjectFile<ELFT>::getRelocationValueString( 2219 DataRefImpl Rel, SmallVectorImpl<char> &Result) const { 2220 const Elf_Shdr *sec = getRelSection(Rel); 2221 uint8_t type; 2222 StringRef res; 2223 int64_t addend = 0; 2224 uint16_t symbol_index = 0; 2225 switch (sec->sh_type) { 2226 default: 2227 return object_error::parse_failed; 2228 case ELF::SHT_REL: { 2229 type = getRel(Rel)->getType(isMips64EL()); 2230 symbol_index = getRel(Rel)->getSymbol(isMips64EL()); 2231 // TODO: Read implicit addend from section data. 2232 break; 2233 } 2234 case ELF::SHT_RELA: { 2235 type = getRela(Rel)->getType(isMips64EL()); 2236 symbol_index = getRela(Rel)->getSymbol(isMips64EL()); 2237 addend = getRela(Rel)->r_addend; 2238 break; 2239 } 2240 } 2241 const Elf_Sym *symb = getEntry<Elf_Sym>(sec->sh_link, symbol_index); 2242 StringRef symname; 2243 if (error_code ec = getSymbolName(getSection(sec->sh_link), symb, symname)) 2244 return ec; 2245 switch (Header->e_machine) { 2246 case ELF::EM_X86_64: 2247 switch (type) { 2248 case ELF::R_X86_64_PC8: 2249 case ELF::R_X86_64_PC16: 2250 case ELF::R_X86_64_PC32: { 2251 std::string fmtbuf; 2252 raw_string_ostream fmt(fmtbuf); 2253 fmt << symname << (addend < 0 ? "" : "+") << addend << "-P"; 2254 fmt.flush(); 2255 Result.append(fmtbuf.begin(), fmtbuf.end()); 2256 } 2257 break; 2258 case ELF::R_X86_64_8: 2259 case ELF::R_X86_64_16: 2260 case ELF::R_X86_64_32: 2261 case ELF::R_X86_64_32S: 2262 case ELF::R_X86_64_64: { 2263 std::string fmtbuf; 2264 raw_string_ostream fmt(fmtbuf); 2265 fmt << symname << (addend < 0 ? "" : "+") << addend; 2266 fmt.flush(); 2267 Result.append(fmtbuf.begin(), fmtbuf.end()); 2268 } 2269 break; 2270 default: 2271 res = "Unknown"; 2272 } 2273 break; 2274 case ELF::EM_AARCH64: { 2275 std::string fmtbuf; 2276 raw_string_ostream fmt(fmtbuf); 2277 fmt << symname; 2278 if (addend != 0) 2279 fmt << (addend < 0 ? "" : "+") << addend; 2280 fmt.flush(); 2281 Result.append(fmtbuf.begin(), fmtbuf.end()); 2282 break; 2283 } 2284 case ELF::EM_ARM: 2285 case ELF::EM_HEXAGON: 2286 res = symname; 2287 break; 2288 default: 2289 res = "Unknown"; 2290 } 2291 if (Result.empty()) 2292 Result.append(res.begin(), res.end()); 2293 return object_error::success; 2294} 2295 2296// Verify that the last byte in the string table in a null. 2297template<class ELFT> 2298void ELFObjectFile<ELFT>::VerifyStrTab(const Elf_Shdr *sh) const { 2299 const char *strtab = (const char*)base() + sh->sh_offset; 2300 if (strtab[sh->sh_size - 1] != 0) 2301 // FIXME: Proper error handling. 2302 report_fatal_error("String table must end with a null terminator!"); 2303} 2304 2305template<class ELFT> 2306ELFObjectFile<ELFT>::ELFObjectFile(MemoryBuffer *Object, error_code &ec) 2307 : ObjectFile(getELFType( 2308 static_cast<endianness>(ELFT::TargetEndianness) == support::little, 2309 ELFT::Is64Bits), 2310 Object) 2311 , isDyldELFObject(false) 2312 , SectionHeaderTable(0) 2313 , dot_shstrtab_sec(0) 2314 , dot_strtab_sec(0) 2315 , dot_dynstr_sec(0) 2316 , dot_dynamic_sec(0) 2317 , dot_gnu_version_sec(0) 2318 , dot_gnu_version_r_sec(0) 2319 , dot_gnu_version_d_sec(0) 2320 , dt_soname(0) 2321 { 2322 2323 const uint64_t FileSize = Data->getBufferSize(); 2324 2325 if (sizeof(Elf_Ehdr) > FileSize) 2326 // FIXME: Proper error handling. 2327 report_fatal_error("File too short!"); 2328 2329 Header = reinterpret_cast<const Elf_Ehdr *>(base()); 2330 2331 if (Header->e_shoff == 0) 2332 return; 2333 2334 const uint64_t SectionTableOffset = Header->e_shoff; 2335 2336 if (SectionTableOffset + sizeof(Elf_Shdr) > FileSize) 2337 // FIXME: Proper error handling. 2338 report_fatal_error("Section header table goes past end of file!"); 2339 2340 // The getNumSections() call below depends on SectionHeaderTable being set. 2341 SectionHeaderTable = 2342 reinterpret_cast<const Elf_Shdr *>(base() + SectionTableOffset); 2343 const uint64_t SectionTableSize = getNumSections() * Header->e_shentsize; 2344 2345 if (SectionTableOffset + SectionTableSize > FileSize) 2346 // FIXME: Proper error handling. 2347 report_fatal_error("Section table goes past end of file!"); 2348 2349 // To find the symbol tables we walk the section table to find SHT_SYMTAB. 2350 const Elf_Shdr* SymbolTableSectionHeaderIndex = 0; 2351 const Elf_Shdr* sh = SectionHeaderTable; 2352 2353 SymbolTableIndex = -1; 2354 DynamicSymbolTableIndex = -1; 2355 2356 for (uint64_t i = 0, e = getNumSections(); i != e; ++i) { 2357 switch (sh->sh_type) { 2358 case ELF::SHT_SYMTAB_SHNDX: { 2359 if (SymbolTableSectionHeaderIndex) 2360 // FIXME: Proper error handling. 2361 report_fatal_error("More than one .symtab_shndx!"); 2362 SymbolTableSectionHeaderIndex = sh; 2363 break; 2364 } 2365 case ELF::SHT_SYMTAB: { 2366 if (SymbolTableIndex != -1) 2367 report_fatal_error("More than one SHT_SYMTAB!"); 2368 SymbolTableIndex = i; 2369 break; 2370 } 2371 case ELF::SHT_DYNSYM: { 2372 if (DynamicSymbolTableIndex != -1) 2373 // FIXME: Proper error handling. 2374 report_fatal_error("More than one SHT_DYNSYM!"); 2375 DynamicSymbolTableIndex = i; 2376 break; 2377 } 2378 case ELF::SHT_REL: 2379 case ELF::SHT_RELA: 2380 break; 2381 case ELF::SHT_DYNAMIC: { 2382 if (dot_dynamic_sec != NULL) 2383 // FIXME: Proper error handling. 2384 report_fatal_error("More than one .dynamic!"); 2385 dot_dynamic_sec = sh; 2386 break; 2387 } 2388 case ELF::SHT_GNU_versym: { 2389 if (dot_gnu_version_sec != NULL) 2390 // FIXME: Proper error handling. 2391 report_fatal_error("More than one .gnu.version section!"); 2392 dot_gnu_version_sec = sh; 2393 break; 2394 } 2395 case ELF::SHT_GNU_verdef: { 2396 if (dot_gnu_version_d_sec != NULL) 2397 // FIXME: Proper error handling. 2398 report_fatal_error("More than one .gnu.version_d section!"); 2399 dot_gnu_version_d_sec = sh; 2400 break; 2401 } 2402 case ELF::SHT_GNU_verneed: { 2403 if (dot_gnu_version_r_sec != NULL) 2404 // FIXME: Proper error handling. 2405 report_fatal_error("More than one .gnu.version_r section!"); 2406 dot_gnu_version_r_sec = sh; 2407 break; 2408 } 2409 } 2410 ++sh; 2411 } 2412 2413 // Get string table sections. 2414 dot_shstrtab_sec = getSection(getStringTableIndex()); 2415 if (dot_shstrtab_sec) { 2416 // Verify that the last byte in the string table in a null. 2417 VerifyStrTab(dot_shstrtab_sec); 2418 } 2419 2420 // Merge this into the above loop. 2421 for (const char *i = reinterpret_cast<const char *>(SectionHeaderTable), 2422 *e = i + getNumSections() * Header->e_shentsize; 2423 i != e; i += Header->e_shentsize) { 2424 const Elf_Shdr *sh = reinterpret_cast<const Elf_Shdr*>(i); 2425 if (sh->sh_type == ELF::SHT_STRTAB) { 2426 StringRef SectionName(getString(dot_shstrtab_sec, sh->sh_name)); 2427 if (SectionName == ".strtab") { 2428 if (dot_strtab_sec != 0) 2429 // FIXME: Proper error handling. 2430 report_fatal_error("Already found section named .strtab!"); 2431 dot_strtab_sec = sh; 2432 VerifyStrTab(dot_strtab_sec); 2433 } else if (SectionName == ".dynstr") { 2434 if (dot_dynstr_sec != 0) 2435 // FIXME: Proper error handling. 2436 report_fatal_error("Already found section named .dynstr!"); 2437 dot_dynstr_sec = sh; 2438 VerifyStrTab(dot_dynstr_sec); 2439 } 2440 } 2441 } 2442 2443 // Build symbol name side-mapping if there is one. 2444 if (SymbolTableSectionHeaderIndex) { 2445 const Elf_Word *ShndxTable = reinterpret_cast<const Elf_Word*>(base() + 2446 SymbolTableSectionHeaderIndex->sh_offset); 2447 error_code ec; 2448 for (symbol_iterator si = begin_symbols(), 2449 se = end_symbols(); si != se; si.increment(ec)) { 2450 if (ec) 2451 report_fatal_error("Fewer extended symbol table entries than symbols!"); 2452 if (*ShndxTable != ELF::SHN_UNDEF) 2453 ExtendedSymbolTable[getSymbol(si->getRawDataRefImpl())] = *ShndxTable; 2454 ++ShndxTable; 2455 } 2456 } 2457} 2458 2459// Get the symbol table index in the symtab section given a symbol 2460template<class ELFT> 2461uint64_t ELFObjectFile<ELFT>::getSymbolIndex(const Elf_Sym *Sym) const { 2462 const Elf_Shdr *SymTab = getSection(SymbolTableIndex); 2463 uintptr_t SymLoc = uintptr_t(Sym); 2464 uintptr_t SymTabLoc = uintptr_t(base() + SymTab->sh_offset); 2465 assert(SymLoc > SymTabLoc && "Symbol not in symbol table!"); 2466 uint64_t SymOffset = SymLoc - SymTabLoc; 2467 assert(SymOffset % SymTab->sh_entsize == 0 && 2468 "Symbol not multiple of symbol size!"); 2469 return SymOffset / SymTab->sh_entsize; 2470} 2471 2472template<class ELFT> 2473symbol_iterator ELFObjectFile<ELFT>::begin_symbols() const { 2474 DataRefImpl SymbolData; 2475 if (SymbolTableIndex == -1) { 2476 SymbolData.d.a = 0; 2477 SymbolData.d.b = 0; 2478 } else { 2479 SymbolData.d.a = 0; 2480 SymbolData.d.b = SymbolTableIndex; 2481 } 2482 return symbol_iterator(SymbolRef(SymbolData, this)); 2483} 2484 2485template<class ELFT> 2486symbol_iterator ELFObjectFile<ELFT>::end_symbols() const { 2487 DataRefImpl SymbolData; 2488 if (SymbolTableIndex == -1) { 2489 SymbolData.d.a = 0; 2490 SymbolData.d.b = 0; 2491 } else { 2492 const Elf_Shdr *SymbolTableSection = getSection(SymbolTableIndex); 2493 SymbolData.d.a = SymbolTableSection->getEntityCount(); 2494 SymbolData.d.b = SymbolTableIndex; 2495 } 2496 return symbol_iterator(SymbolRef(SymbolData, this)); 2497} 2498 2499template<class ELFT> 2500symbol_iterator ELFObjectFile<ELFT>::begin_dynamic_symbols() const { 2501 DataRefImpl SymbolData; 2502 if (DynamicSymbolTableIndex == -1) { 2503 SymbolData.d.a = 0; 2504 SymbolData.d.b = 0; 2505 } else { 2506 SymbolData.d.a = 0; 2507 SymbolData.d.b = DynamicSymbolTableIndex; 2508 } 2509 return symbol_iterator(SymbolRef(SymbolData, this)); 2510} 2511 2512template<class ELFT> 2513symbol_iterator ELFObjectFile<ELFT>::end_dynamic_symbols() const { 2514 DataRefImpl SymbolData; 2515 if (DynamicSymbolTableIndex == -1) { 2516 SymbolData.d.a = 0; 2517 SymbolData.d.b = 0; 2518 } else { 2519 const Elf_Shdr *SymbolTableSection = getSection(DynamicSymbolTableIndex); 2520 SymbolData.d.a = SymbolTableSection->getEntityCount(); 2521 SymbolData.d.b = DynamicSymbolTableIndex; 2522 } 2523 return symbol_iterator(SymbolRef(SymbolData, this)); 2524} 2525 2526template<class ELFT> 2527section_iterator ELFObjectFile<ELFT>::begin_sections() const { 2528 DataRefImpl ret; 2529 ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff); 2530 return section_iterator(SectionRef(ret, this)); 2531} 2532 2533template<class ELFT> 2534section_iterator ELFObjectFile<ELFT>::end_sections() const { 2535 DataRefImpl ret; 2536 ret.p = reinterpret_cast<intptr_t>(base() 2537 + Header->e_shoff 2538 + (Header->e_shentsize*getNumSections())); 2539 return section_iterator(SectionRef(ret, this)); 2540} 2541 2542template<class ELFT> 2543typename ELFObjectFile<ELFT>::Elf_Dyn_iterator 2544ELFObjectFile<ELFT>::begin_dynamic_table() const { 2545 if (dot_dynamic_sec) 2546 return Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize, 2547 (const char *)base() + dot_dynamic_sec->sh_offset); 2548 return Elf_Dyn_iterator(0, 0); 2549} 2550 2551template<class ELFT> 2552typename ELFObjectFile<ELFT>::Elf_Dyn_iterator 2553ELFObjectFile<ELFT>::end_dynamic_table(bool NULLEnd) const { 2554 if (dot_dynamic_sec) { 2555 Elf_Dyn_iterator Ret(dot_dynamic_sec->sh_entsize, 2556 (const char *)base() + dot_dynamic_sec->sh_offset + 2557 dot_dynamic_sec->sh_size); 2558 2559 if (NULLEnd) { 2560 Elf_Dyn_iterator Start = begin_dynamic_table(); 2561 while (Start != Ret && Start->getTag() != ELF::DT_NULL) 2562 ++Start; 2563 2564 // Include the DT_NULL. 2565 if (Start != Ret) 2566 ++Start; 2567 Ret = Start; 2568 } 2569 return Ret; 2570 } 2571 return Elf_Dyn_iterator(0, 0); 2572} 2573 2574template<class ELFT> 2575StringRef ELFObjectFile<ELFT>::getLoadName() const { 2576 if (!dt_soname) { 2577 // Find the DT_SONAME entry 2578 Elf_Dyn_iterator it = begin_dynamic_table(); 2579 Elf_Dyn_iterator ie = end_dynamic_table(); 2580 while (it != ie && it->getTag() != ELF::DT_SONAME) 2581 ++it; 2582 2583 if (it != ie) { 2584 if (dot_dynstr_sec == NULL) 2585 report_fatal_error("Dynamic string table is missing"); 2586 dt_soname = getString(dot_dynstr_sec, it->getVal()); 2587 } else { 2588 dt_soname = ""; 2589 } 2590 } 2591 return dt_soname; 2592} 2593 2594template<class ELFT> 2595library_iterator ELFObjectFile<ELFT>::begin_libraries_needed() const { 2596 // Find the first DT_NEEDED entry 2597 Elf_Dyn_iterator i = begin_dynamic_table(); 2598 Elf_Dyn_iterator e = end_dynamic_table(); 2599 while (i != e && i->getTag() != ELF::DT_NEEDED) 2600 ++i; 2601 2602 DataRefImpl DRI; 2603 DRI.p = reinterpret_cast<uintptr_t>(i.get()); 2604 return library_iterator(LibraryRef(DRI, this)); 2605} 2606 2607template<class ELFT> 2608error_code ELFObjectFile<ELFT>::getLibraryNext(DataRefImpl Data, 2609 LibraryRef &Result) const { 2610 // Use the same DataRefImpl format as DynRef. 2611 Elf_Dyn_iterator i = Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize, 2612 reinterpret_cast<const char *>(Data.p)); 2613 Elf_Dyn_iterator e = end_dynamic_table(); 2614 2615 // Skip the current dynamic table entry and find the next DT_NEEDED entry. 2616 do 2617 ++i; 2618 while (i != e && i->getTag() != ELF::DT_NEEDED); 2619 2620 DataRefImpl DRI; 2621 DRI.p = reinterpret_cast<uintptr_t>(i.get()); 2622 Result = LibraryRef(DRI, this); 2623 return object_error::success; 2624} 2625 2626template<class ELFT> 2627error_code ELFObjectFile<ELFT>::getLibraryPath(DataRefImpl Data, 2628 StringRef &Res) const { 2629 Elf_Dyn_iterator i = Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize, 2630 reinterpret_cast<const char *>(Data.p)); 2631 if (i == end_dynamic_table()) 2632 report_fatal_error("getLibraryPath() called on iterator end"); 2633 2634 if (i->getTag() != ELF::DT_NEEDED) 2635 report_fatal_error("Invalid library_iterator"); 2636 2637 // This uses .dynstr to lookup the name of the DT_NEEDED entry. 2638 // THis works as long as DT_STRTAB == .dynstr. This is true most of 2639 // the time, but the specification allows exceptions. 2640 // TODO: This should really use DT_STRTAB instead. Doing this requires 2641 // reading the program headers. 2642 if (dot_dynstr_sec == NULL) 2643 report_fatal_error("Dynamic string table is missing"); 2644 Res = getString(dot_dynstr_sec, i->getVal()); 2645 return object_error::success; 2646} 2647 2648template<class ELFT> 2649library_iterator ELFObjectFile<ELFT>::end_libraries_needed() const { 2650 Elf_Dyn_iterator e = end_dynamic_table(); 2651 DataRefImpl DRI; 2652 DRI.p = reinterpret_cast<uintptr_t>(e.get()); 2653 return library_iterator(LibraryRef(DRI, this)); 2654} 2655 2656template<class ELFT> 2657uint8_t ELFObjectFile<ELFT>::getBytesInAddress() const { 2658 return ELFT::Is64Bits ? 8 : 4; 2659} 2660 2661template<class ELFT> 2662StringRef ELFObjectFile<ELFT>::getFileFormatName() const { 2663 switch(Header->e_ident[ELF::EI_CLASS]) { 2664 case ELF::ELFCLASS32: 2665 switch(Header->e_machine) { 2666 case ELF::EM_386: 2667 return "ELF32-i386"; 2668 case ELF::EM_X86_64: 2669 return "ELF32-x86-64"; 2670 case ELF::EM_ARM: 2671 return "ELF32-arm"; 2672 case ELF::EM_HEXAGON: 2673 return "ELF32-hexagon"; 2674 case ELF::EM_MIPS: 2675 return "ELF32-mips"; 2676 case ELF::EM_PPC: 2677 return "ELF32-ppc"; 2678 default: 2679 return "ELF32-unknown"; 2680 } 2681 case ELF::ELFCLASS64: 2682 switch(Header->e_machine) { 2683 case ELF::EM_386: 2684 return "ELF64-i386"; 2685 case ELF::EM_X86_64: 2686 return "ELF64-x86-64"; 2687 case ELF::EM_AARCH64: 2688 return "ELF64-aarch64"; 2689 case ELF::EM_PPC64: 2690 return "ELF64-ppc64"; 2691 case ELF::EM_S390: 2692 return "ELF64-s390"; 2693 default: 2694 return "ELF64-unknown"; 2695 } 2696 default: 2697 // FIXME: Proper error handling. 2698 report_fatal_error("Invalid ELFCLASS!"); 2699 } 2700} 2701 2702template<class ELFT> 2703unsigned ELFObjectFile<ELFT>::getArch() const { 2704 switch(Header->e_machine) { 2705 case ELF::EM_386: 2706 return Triple::x86; 2707 case ELF::EM_X86_64: 2708 return Triple::x86_64; 2709 case ELF::EM_AARCH64: 2710 return Triple::aarch64; 2711 case ELF::EM_ARM: 2712 return Triple::arm; 2713 case ELF::EM_HEXAGON: 2714 return Triple::hexagon; 2715 case ELF::EM_MIPS: 2716 return (ELFT::TargetEndianness == support::little) ? 2717 Triple::mipsel : Triple::mips; 2718 case ELF::EM_PPC64: 2719 return Triple::ppc64; 2720 case ELF::EM_S390: 2721 return Triple::systemz; 2722 default: 2723 return Triple::UnknownArch; 2724 } 2725} 2726 2727template<class ELFT> 2728uint64_t ELFObjectFile<ELFT>::getNumSections() const { 2729 assert(Header && "Header not initialized!"); 2730 if (Header->e_shnum == ELF::SHN_UNDEF) { 2731 assert(SectionHeaderTable && "SectionHeaderTable not initialized!"); 2732 return SectionHeaderTable->sh_size; 2733 } 2734 return Header->e_shnum; 2735} 2736 2737template<class ELFT> 2738uint64_t 2739ELFObjectFile<ELFT>::getStringTableIndex() const { 2740 if (Header->e_shnum == ELF::SHN_UNDEF) { 2741 if (Header->e_shstrndx == ELF::SHN_HIRESERVE) 2742 return SectionHeaderTable->sh_link; 2743 if (Header->e_shstrndx >= getNumSections()) 2744 return 0; 2745 } 2746 return Header->e_shstrndx; 2747} 2748 2749template<class ELFT> 2750template<typename T> 2751inline const T * 2752ELFObjectFile<ELFT>::getEntry(uint32_t Section, uint32_t Entry) const { 2753 return getEntry<T>(getSection(Section), Entry); 2754} 2755 2756template<class ELFT> 2757template<typename T> 2758inline const T * 2759ELFObjectFile<ELFT>::getEntry(const Elf_Shdr * Section, uint32_t Entry) const { 2760 return reinterpret_cast<const T *>( 2761 base() 2762 + Section->sh_offset 2763 + (Entry * Section->sh_entsize)); 2764} 2765 2766template<class ELFT> 2767const typename ELFObjectFile<ELFT>::Elf_Sym * 2768ELFObjectFile<ELFT>::getSymbol(DataRefImpl Symb) const { 2769 return getEntry<Elf_Sym>(Symb.d.b, Symb.d.a); 2770} 2771 2772template<class ELFT> 2773const typename ELFObjectFile<ELFT>::Elf_Rel * 2774ELFObjectFile<ELFT>::getRel(DataRefImpl Rel) const { 2775 return getEntry<Elf_Rel>(Rel.d.a, Rel.d.b); 2776} 2777 2778template<class ELFT> 2779const typename ELFObjectFile<ELFT>::Elf_Rela * 2780ELFObjectFile<ELFT>::getRela(DataRefImpl Rela) const { 2781 return getEntry<Elf_Rela>(Rela.d.a, Rela.d.b); 2782} 2783 2784template<class ELFT> 2785const typename ELFObjectFile<ELFT>::Elf_Shdr * 2786ELFObjectFile<ELFT>::getSection(DataRefImpl Symb) const { 2787 const Elf_Shdr *sec = getSection(Symb.d.b); 2788 if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM) 2789 // FIXME: Proper error handling. 2790 report_fatal_error("Invalid symbol table section!"); 2791 return sec; 2792} 2793 2794template<class ELFT> 2795const typename ELFObjectFile<ELFT>::Elf_Shdr * 2796ELFObjectFile<ELFT>::getSection(uint32_t index) const { 2797 if (index == 0) 2798 return 0; 2799 if (!SectionHeaderTable || index >= getNumSections()) 2800 // FIXME: Proper error handling. 2801 report_fatal_error("Invalid section index!"); 2802 2803 return reinterpret_cast<const Elf_Shdr *>( 2804 reinterpret_cast<const char *>(SectionHeaderTable) 2805 + (index * Header->e_shentsize)); 2806} 2807 2808template<class ELFT> 2809const char *ELFObjectFile<ELFT>::getString(uint32_t section, 2810 ELF::Elf32_Word offset) const { 2811 return getString(getSection(section), offset); 2812} 2813 2814template<class ELFT> 2815const char *ELFObjectFile<ELFT>::getString(const Elf_Shdr *section, 2816 ELF::Elf32_Word offset) const { 2817 assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!"); 2818 if (offset >= section->sh_size) 2819 // FIXME: Proper error handling. 2820 report_fatal_error("Symbol name offset outside of string table!"); 2821 return (const char *)base() + section->sh_offset + offset; 2822} 2823 2824template<class ELFT> 2825error_code ELFObjectFile<ELFT>::getSymbolName(const Elf_Shdr *section, 2826 const Elf_Sym *symb, 2827 StringRef &Result) const { 2828 if (symb->st_name == 0) { 2829 const Elf_Shdr *section = getSection(symb); 2830 if (!section) 2831 Result = ""; 2832 else 2833 Result = getString(dot_shstrtab_sec, section->sh_name); 2834 return object_error::success; 2835 } 2836 2837 if (DynamicSymbolTableIndex != -1 && 2838 section == getSection(DynamicSymbolTableIndex)) { 2839 // Symbol is in .dynsym, use .dynstr string table 2840 Result = getString(dot_dynstr_sec, symb->st_name); 2841 } else { 2842 // Use the default symbol table name section. 2843 Result = getString(dot_strtab_sec, symb->st_name); 2844 } 2845 return object_error::success; 2846} 2847 2848template<class ELFT> 2849error_code ELFObjectFile<ELFT>::getSectionName(const Elf_Shdr *section, 2850 StringRef &Result) const { 2851 Result = StringRef(getString(dot_shstrtab_sec, section->sh_name)); 2852 return object_error::success; 2853} 2854 2855template<class ELFT> 2856error_code ELFObjectFile<ELFT>::getSymbolVersion(const Elf_Shdr *section, 2857 const Elf_Sym *symb, 2858 StringRef &Version, 2859 bool &IsDefault) const { 2860 // Handle non-dynamic symbols. 2861 if (section != getSection(DynamicSymbolTableIndex)) { 2862 // Non-dynamic symbols can have versions in their names 2863 // A name of the form 'foo@V1' indicates version 'V1', non-default. 2864 // A name of the form 'foo@@V2' indicates version 'V2', default version. 2865 StringRef Name; 2866 error_code ec = getSymbolName(section, symb, Name); 2867 if (ec != object_error::success) 2868 return ec; 2869 size_t atpos = Name.find('@'); 2870 if (atpos == StringRef::npos) { 2871 Version = ""; 2872 IsDefault = false; 2873 return object_error::success; 2874 } 2875 ++atpos; 2876 if (atpos < Name.size() && Name[atpos] == '@') { 2877 IsDefault = true; 2878 ++atpos; 2879 } else { 2880 IsDefault = false; 2881 } 2882 Version = Name.substr(atpos); 2883 return object_error::success; 2884 } 2885 2886 // This is a dynamic symbol. Look in the GNU symbol version table. 2887 if (dot_gnu_version_sec == NULL) { 2888 // No version table. 2889 Version = ""; 2890 IsDefault = false; 2891 return object_error::success; 2892 } 2893 2894 // Determine the position in the symbol table of this entry. 2895 const char *sec_start = (const char*)base() + section->sh_offset; 2896 size_t entry_index = ((const char*)symb - sec_start)/section->sh_entsize; 2897 2898 // Get the corresponding version index entry 2899 const Elf_Versym *vs = getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index); 2900 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION; 2901 2902 // Special markers for unversioned symbols. 2903 if (version_index == ELF::VER_NDX_LOCAL || 2904 version_index == ELF::VER_NDX_GLOBAL) { 2905 Version = ""; 2906 IsDefault = false; 2907 return object_error::success; 2908 } 2909 2910 // Lookup this symbol in the version table 2911 LoadVersionMap(); 2912 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull()) 2913 report_fatal_error("Symbol has version index without corresponding " 2914 "define or reference entry"); 2915 const VersionMapEntry &entry = VersionMap[version_index]; 2916 2917 // Get the version name string 2918 size_t name_offset; 2919 if (entry.isVerdef()) { 2920 // The first Verdaux entry holds the name. 2921 name_offset = entry.getVerdef()->getAux()->vda_name; 2922 } else { 2923 name_offset = entry.getVernaux()->vna_name; 2924 } 2925 Version = getString(dot_dynstr_sec, name_offset); 2926 2927 // Set IsDefault 2928 if (entry.isVerdef()) { 2929 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN); 2930 } else { 2931 IsDefault = false; 2932 } 2933 2934 return object_error::success; 2935} 2936 2937/// FIXME: Maybe we should have a base ElfObjectFile that is not a template 2938/// and make these member functions? 2939static inline error_code getELFRelocationAddend(const RelocationRef R, 2940 int64_t &Addend) { 2941 const ObjectFile *Obj = R.getObjectFile(); 2942 DataRefImpl DRI = R.getRawDataRefImpl(); 2943 // Little-endian 32-bit 2944 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) 2945 return ELFObj->getRelocationAddend(DRI, Addend); 2946 2947 // Big-endian 32-bit 2948 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) 2949 return ELFObj->getRelocationAddend(DRI, Addend); 2950 2951 // Little-endian 64-bit 2952 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) 2953 return ELFObj->getRelocationAddend(DRI, Addend); 2954 2955 // Big-endian 64-bit 2956 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) 2957 return ELFObj->getRelocationAddend(DRI, Addend); 2958 2959 llvm_unreachable("Object passed to getELFRelocationAddend() is not ELF"); 2960} 2961 2962/// This is a generic interface for retrieving GNU symbol version 2963/// information from an ELFObjectFile. 2964static inline error_code GetELFSymbolVersion(const ObjectFile *Obj, 2965 const SymbolRef &Sym, 2966 StringRef &Version, 2967 bool &IsDefault) { 2968 // Little-endian 32-bit 2969 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) 2970 return ELFObj->getSymbolVersion(Sym, Version, IsDefault); 2971 2972 // Big-endian 32-bit 2973 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) 2974 return ELFObj->getSymbolVersion(Sym, Version, IsDefault); 2975 2976 // Little-endian 64-bit 2977 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) 2978 return ELFObj->getSymbolVersion(Sym, Version, IsDefault); 2979 2980 // Big-endian 64-bit 2981 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) 2982 return ELFObj->getSymbolVersion(Sym, Version, IsDefault); 2983 2984 llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF"); 2985} 2986 2987/// This function returns the hash value for a symbol in the .dynsym section 2988/// Name of the API remains consistent as specified in the libelf 2989/// REF : http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#hash 2990static inline unsigned elf_hash(StringRef &symbolName) { 2991 unsigned h = 0, g; 2992 for (unsigned i = 0, j = symbolName.size(); i < j; i++) { 2993 h = (h << 4) + symbolName[i]; 2994 g = h & 0xf0000000L; 2995 if (g != 0) 2996 h ^= g >> 24; 2997 h &= ~g; 2998 } 2999 return h; 3000} 3001 3002} 3003} 3004 3005#endif 3006