1 //===- ELFDumper.cpp - ELF-specific dumper --------------------------------===// 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 /// \file 11 /// \brief This file implements the ELF-specific dumper for llvm-readobj. 12 /// 13 //===----------------------------------------------------------------------===// 14 15 #include "ARMEHABIPrinter.h" 16 #include "Error.h" 17 #include "ObjDumper.h" 18 #include "StackMapPrinter.h" 19 #include "llvm-readobj.h" 20 #include "llvm/ADT/ArrayRef.h" 21 #include "llvm/ADT/Optional.h" 22 #include "llvm/ADT/PointerIntPair.h" 23 #include "llvm/ADT/SmallString.h" 24 #include "llvm/ADT/SmallVector.h" 25 #include "llvm/ADT/STLExtras.h" 26 #include "llvm/ADT/StringExtras.h" 27 #include "llvm/ADT/StringRef.h" 28 #include "llvm/ADT/Twine.h" 29 #include "llvm/BinaryFormat/ELF.h" 30 #include "llvm/Object/ELF.h" 31 #include "llvm/Object/ELFObjectFile.h" 32 #include "llvm/Object/ELFTypes.h" 33 #include "llvm/Object/Error.h" 34 #include "llvm/Object/ObjectFile.h" 35 #include "llvm/Object/StackMapParser.h" 36 #include "llvm/Support/ARMAttributeParser.h" 37 #include "llvm/Support/ARMBuildAttributes.h" 38 #include "llvm/Support/Casting.h" 39 #include "llvm/Support/Compiler.h" 40 #include "llvm/Support/Endian.h" 41 #include "llvm/Support/ErrorHandling.h" 42 #include "llvm/Support/Format.h" 43 #include "llvm/Support/FormattedStream.h" 44 #include "llvm/Support/MathExtras.h" 45 #include "llvm/Support/MipsABIFlags.h" 46 #include "llvm/Support/ScopedPrinter.h" 47 #include "llvm/Support/raw_ostream.h" 48 #include <algorithm> 49 #include <cinttypes> 50 #include <cstddef> 51 #include <cstdint> 52 #include <cstdlib> 53 #include <iterator> 54 #include <memory> 55 #include <string> 56 #include <system_error> 57 #include <vector> 58 59 using namespace llvm; 60 using namespace llvm::object; 61 using namespace ELF; 62 63 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \ 64 case ns::enum: return #enum; 65 66 #define ENUM_ENT(enum, altName) \ 67 { #enum, altName, ELF::enum } 68 69 #define ENUM_ENT_1(enum) \ 70 { #enum, #enum, ELF::enum } 71 72 #define LLVM_READOBJ_PHDR_ENUM(ns, enum) \ 73 case ns::enum: \ 74 return std::string(#enum).substr(3); 75 76 #define TYPEDEF_ELF_TYPES(ELFT) \ 77 using ELFO = ELFFile<ELFT>; \ 78 using Elf_Shdr = typename ELFO::Elf_Shdr; \ 79 using Elf_Sym = typename ELFO::Elf_Sym; \ 80 using Elf_Dyn = typename ELFO::Elf_Dyn; \ 81 using Elf_Dyn_Range = typename ELFO::Elf_Dyn_Range; \ 82 using Elf_Rel = typename ELFO::Elf_Rel; \ 83 using Elf_Rela = typename ELFO::Elf_Rela; \ 84 using Elf_Rel_Range = typename ELFO::Elf_Rel_Range; \ 85 using Elf_Rela_Range = typename ELFO::Elf_Rela_Range; \ 86 using Elf_Phdr = typename ELFO::Elf_Phdr; \ 87 using Elf_Half = typename ELFO::Elf_Half; \ 88 using Elf_Ehdr = typename ELFO::Elf_Ehdr; \ 89 using Elf_Word = typename ELFO::Elf_Word; \ 90 using Elf_Hash = typename ELFO::Elf_Hash; \ 91 using Elf_GnuHash = typename ELFO::Elf_GnuHash; \ 92 using Elf_Sym_Range = typename ELFO::Elf_Sym_Range; \ 93 using Elf_Versym = typename ELFO::Elf_Versym; \ 94 using Elf_Verneed = typename ELFO::Elf_Verneed; \ 95 using Elf_Vernaux = typename ELFO::Elf_Vernaux; \ 96 using Elf_Verdef = typename ELFO::Elf_Verdef; \ 97 using Elf_Verdaux = typename ELFO::Elf_Verdaux; \ 98 using uintX_t = typename ELFO::uintX_t; 99 100 namespace { 101 102 template <class ELFT> class DumpStyle; 103 104 /// Represents a contiguous uniform range in the file. We cannot just create a 105 /// range directly because when creating one of these from the .dynamic table 106 /// the size, entity size and virtual address are different entries in arbitrary 107 /// order (DT_REL, DT_RELSZ, DT_RELENT for example). 108 struct DynRegionInfo { 109 DynRegionInfo() = default; 110 DynRegionInfo(const void *A, uint64_t S, uint64_t ES) 111 : Addr(A), Size(S), EntSize(ES) {} 112 113 /// \brief Address in current address space. 114 const void *Addr = nullptr; 115 /// \brief Size in bytes of the region. 116 uint64_t Size = 0; 117 /// \brief Size of each entity in the region. 118 uint64_t EntSize = 0; 119 120 template <typename Type> ArrayRef<Type> getAsArrayRef() const { 121 const Type *Start = reinterpret_cast<const Type *>(Addr); 122 if (!Start) 123 return {Start, Start}; 124 if (EntSize != sizeof(Type) || Size % EntSize) 125 reportError("Invalid entity size"); 126 return {Start, Start + (Size / EntSize)}; 127 } 128 }; 129 130 template<typename ELFT> 131 class ELFDumper : public ObjDumper { 132 public: 133 ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer); 134 135 void printFileHeaders() override; 136 void printSections() override; 137 void printRelocations() override; 138 void printDynamicRelocations() override; 139 void printSymbols() override; 140 void printDynamicSymbols() override; 141 void printUnwindInfo() override; 142 143 void printDynamicTable() override; 144 void printNeededLibraries() override; 145 void printProgramHeaders() override; 146 void printHashTable() override; 147 void printGnuHashTable() override; 148 void printLoadName() override; 149 void printVersionInfo() override; 150 void printGroupSections() override; 151 152 void printAttributes() override; 153 void printMipsPLTGOT() override; 154 void printMipsABIFlags() override; 155 void printMipsReginfo() override; 156 void printMipsOptions() override; 157 158 void printAMDGPUCodeObjectMetadata() override; 159 160 void printStackMap() const override; 161 162 void printHashHistogram() override; 163 164 void printNotes() override; 165 166 private: 167 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle; 168 169 TYPEDEF_ELF_TYPES(ELFT) 170 171 DynRegionInfo checkDRI(DynRegionInfo DRI) { 172 if (DRI.Addr < Obj->base() || 173 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize()) 174 error(llvm::object::object_error::parse_failed); 175 return DRI; 176 } 177 178 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) { 179 return checkDRI({Obj->base() + P->p_offset, P->p_filesz, EntSize}); 180 } 181 182 DynRegionInfo createDRIFrom(const Elf_Shdr *S) { 183 return checkDRI({Obj->base() + S->sh_offset, S->sh_size, S->sh_entsize}); 184 } 185 186 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments); 187 188 void printValue(uint64_t Type, uint64_t Value); 189 190 StringRef getDynamicString(uint64_t Offset) const; 191 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb, 192 bool &IsDefault) const; 193 void LoadVersionMap() const; 194 void LoadVersionNeeds(const Elf_Shdr *ec) const; 195 void LoadVersionDefs(const Elf_Shdr *sec) const; 196 197 const ELFO *Obj; 198 DynRegionInfo DynRelRegion; 199 DynRegionInfo DynRelaRegion; 200 DynRegionInfo DynPLTRelRegion; 201 DynRegionInfo DynSymRegion; 202 DynRegionInfo DynamicTable; 203 StringRef DynamicStringTable; 204 StringRef SOName; 205 const Elf_Hash *HashTable = nullptr; 206 const Elf_GnuHash *GnuHashTable = nullptr; 207 const Elf_Shdr *DotSymtabSec = nullptr; 208 StringRef DynSymtabName; 209 ArrayRef<Elf_Word> ShndxTable; 210 211 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version 212 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r 213 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d 214 215 // Records for each version index the corresponding Verdef or Vernaux entry. 216 // This is filled the first time LoadVersionMap() is called. 217 class VersionMapEntry : public PointerIntPair<const void *, 1> { 218 public: 219 // If the integer is 0, this is an Elf_Verdef*. 220 // If the integer is 1, this is an Elf_Vernaux*. 221 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {} 222 VersionMapEntry(const Elf_Verdef *verdef) 223 : PointerIntPair<const void *, 1>(verdef, 0) {} 224 VersionMapEntry(const Elf_Vernaux *vernaux) 225 : PointerIntPair<const void *, 1>(vernaux, 1) {} 226 227 bool isNull() const { return getPointer() == nullptr; } 228 bool isVerdef() const { return !isNull() && getInt() == 0; } 229 bool isVernaux() const { return !isNull() && getInt() == 1; } 230 const Elf_Verdef *getVerdef() const { 231 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr; 232 } 233 const Elf_Vernaux *getVernaux() const { 234 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr; 235 } 236 }; 237 mutable SmallVector<VersionMapEntry, 16> VersionMap; 238 239 public: 240 Elf_Dyn_Range dynamic_table() const { 241 return DynamicTable.getAsArrayRef<Elf_Dyn>(); 242 } 243 244 Elf_Sym_Range dynamic_symbols() const { 245 return DynSymRegion.getAsArrayRef<Elf_Sym>(); 246 } 247 248 Elf_Rel_Range dyn_rels() const; 249 Elf_Rela_Range dyn_relas() const; 250 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable, 251 bool IsDynamic) const; 252 253 void printSymbolsHelper(bool IsDynamic) const; 254 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; } 255 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; } 256 StringRef getDynamicStringTable() const { return DynamicStringTable; } 257 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; } 258 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; } 259 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; } 260 const Elf_Hash *getHashTable() const { return HashTable; } 261 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; } 262 }; 263 264 template <class ELFT> 265 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const { 266 StringRef StrTable, SymtabName; 267 size_t Entries = 0; 268 Elf_Sym_Range Syms(nullptr, nullptr); 269 if (IsDynamic) { 270 StrTable = DynamicStringTable; 271 Syms = dynamic_symbols(); 272 SymtabName = DynSymtabName; 273 if (DynSymRegion.Addr) 274 Entries = DynSymRegion.Size / DynSymRegion.EntSize; 275 } else { 276 if (!DotSymtabSec) 277 return; 278 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 279 Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 280 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec)); 281 Entries = DotSymtabSec->getEntityCount(); 282 } 283 if (Syms.begin() == Syms.end()) 284 return; 285 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries); 286 for (const auto &Sym : Syms) 287 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic); 288 } 289 290 template <typename ELFT> class DumpStyle { 291 public: 292 using Elf_Shdr = typename ELFFile<ELFT>::Elf_Shdr; 293 using Elf_Sym = typename ELFFile<ELFT>::Elf_Sym; 294 295 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {} 296 virtual ~DumpStyle() = default; 297 298 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0; 299 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0; 300 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0; 301 virtual void printSections(const ELFFile<ELFT> *Obj) = 0; 302 virtual void printSymbols(const ELFFile<ELFT> *Obj) = 0; 303 virtual void printDynamicSymbols(const ELFFile<ELFT> *Obj) = 0; 304 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0; 305 virtual void printSymtabMessage(const ELFFile<ELFT> *obj, StringRef Name, 306 size_t Offset) {} 307 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol, 308 const Elf_Sym *FirstSym, StringRef StrTable, 309 bool IsDynamic) = 0; 310 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj) = 0; 311 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0; 312 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0; 313 const ELFDumper<ELFT> *dumper() const { return Dumper; } 314 315 private: 316 const ELFDumper<ELFT> *Dumper; 317 }; 318 319 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> { 320 formatted_raw_ostream OS; 321 322 public: 323 TYPEDEF_ELF_TYPES(ELFT) 324 325 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 326 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {} 327 328 void printFileHeaders(const ELFO *Obj) override; 329 void printGroupSections(const ELFFile<ELFT> *Obj) override; 330 void printRelocations(const ELFO *Obj) override; 331 void printSections(const ELFO *Obj) override; 332 void printSymbols(const ELFO *Obj) override; 333 void printDynamicSymbols(const ELFO *Obj) override; 334 void printDynamicRelocations(const ELFO *Obj) override; 335 void printSymtabMessage(const ELFO *Obj, StringRef Name, 336 size_t Offset) override; 337 void printProgramHeaders(const ELFO *Obj) override; 338 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 339 void printNotes(const ELFFile<ELFT> *Obj) override; 340 341 private: 342 struct Field { 343 StringRef Str; 344 unsigned Column; 345 346 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {} 347 Field(unsigned Col) : Str(""), Column(Col) {} 348 }; 349 350 template <typename T, typename TEnum> 351 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) { 352 for (const auto &EnumItem : EnumValues) 353 if (EnumItem.Value == Value) 354 return EnumItem.AltName; 355 return to_hexString(Value, false); 356 } 357 358 formatted_raw_ostream &printField(struct Field F) { 359 if (F.Column != 0) 360 OS.PadToColumn(F.Column); 361 OS << F.Str; 362 OS.flush(); 363 return OS; 364 } 365 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym, 366 StringRef StrTable, uint32_t Bucket); 367 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 368 const Elf_Rela &R, bool IsRela); 369 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 370 StringRef StrTable, bool IsDynamic) override; 371 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol, 372 const Elf_Sym *FirstSym); 373 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela); 374 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 375 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 376 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 377 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 378 }; 379 380 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> { 381 public: 382 TYPEDEF_ELF_TYPES(ELFT) 383 384 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 385 : DumpStyle<ELFT>(Dumper), W(W) {} 386 387 void printFileHeaders(const ELFO *Obj) override; 388 void printGroupSections(const ELFFile<ELFT> *Obj) override; 389 void printRelocations(const ELFO *Obj) override; 390 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj); 391 void printSections(const ELFO *Obj) override; 392 void printSymbols(const ELFO *Obj) override; 393 void printDynamicSymbols(const ELFO *Obj) override; 394 void printDynamicRelocations(const ELFO *Obj) override; 395 void printProgramHeaders(const ELFO *Obj) override; 396 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 397 void printNotes(const ELFFile<ELFT> *Obj) override; 398 399 private: 400 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab); 401 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel); 402 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 403 StringRef StrTable, bool IsDynamic) override; 404 405 ScopedPrinter &W; 406 }; 407 408 } // end anonymous namespace 409 410 namespace llvm { 411 412 template <class ELFT> 413 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj, 414 ScopedPrinter &Writer, 415 std::unique_ptr<ObjDumper> &Result) { 416 Result.reset(new ELFDumper<ELFT>(Obj, Writer)); 417 return readobj_error::success; 418 } 419 420 std::error_code createELFDumper(const object::ObjectFile *Obj, 421 ScopedPrinter &Writer, 422 std::unique_ptr<ObjDumper> &Result) { 423 // Little-endian 32-bit 424 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) 425 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 426 427 // Big-endian 32-bit 428 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) 429 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 430 431 // Little-endian 64-bit 432 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) 433 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 434 435 // Big-endian 64-bit 436 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) 437 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 438 439 return readobj_error::unsupported_obj_file_format; 440 } 441 442 } // end namespace llvm 443 444 // Iterate through the versions needed section, and place each Elf_Vernaux 445 // in the VersionMap according to its index. 446 template <class ELFT> 447 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const { 448 unsigned vn_size = sec->sh_size; // Size of section in bytes 449 unsigned vn_count = sec->sh_info; // Number of Verneed entries 450 const char *sec_start = (const char *)Obj->base() + sec->sh_offset; 451 const char *sec_end = sec_start + vn_size; 452 // The first Verneed entry is at the start of the section. 453 const char *p = sec_start; 454 for (unsigned i = 0; i < vn_count; i++) { 455 if (p + sizeof(Elf_Verneed) > sec_end) 456 report_fatal_error("Section ended unexpectedly while scanning " 457 "version needed records."); 458 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p); 459 if (vn->vn_version != ELF::VER_NEED_CURRENT) 460 report_fatal_error("Unexpected verneed version"); 461 // Iterate through the Vernaux entries 462 const char *paux = p + vn->vn_aux; 463 for (unsigned j = 0; j < vn->vn_cnt; j++) { 464 if (paux + sizeof(Elf_Vernaux) > sec_end) 465 report_fatal_error("Section ended unexpected while scanning auxiliary " 466 "version needed records."); 467 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux); 468 size_t index = vna->vna_other & ELF::VERSYM_VERSION; 469 if (index >= VersionMap.size()) 470 VersionMap.resize(index + 1); 471 VersionMap[index] = VersionMapEntry(vna); 472 paux += vna->vna_next; 473 } 474 p += vn->vn_next; 475 } 476 } 477 478 // Iterate through the version definitions, and place each Elf_Verdef 479 // in the VersionMap according to its index. 480 template <class ELFT> 481 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const { 482 unsigned vd_size = sec->sh_size; // Size of section in bytes 483 unsigned vd_count = sec->sh_info; // Number of Verdef entries 484 const char *sec_start = (const char *)Obj->base() + sec->sh_offset; 485 const char *sec_end = sec_start + vd_size; 486 // The first Verdef entry is at the start of the section. 487 const char *p = sec_start; 488 for (unsigned i = 0; i < vd_count; i++) { 489 if (p + sizeof(Elf_Verdef) > sec_end) 490 report_fatal_error("Section ended unexpectedly while scanning " 491 "version definitions."); 492 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p); 493 if (vd->vd_version != ELF::VER_DEF_CURRENT) 494 report_fatal_error("Unexpected verdef version"); 495 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION; 496 if (index >= VersionMap.size()) 497 VersionMap.resize(index + 1); 498 VersionMap[index] = VersionMapEntry(vd); 499 p += vd->vd_next; 500 } 501 } 502 503 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const { 504 // If there is no dynamic symtab or version table, there is nothing to do. 505 if (!DynSymRegion.Addr || !dot_gnu_version_sec) 506 return; 507 508 // Has the VersionMap already been loaded? 509 if (VersionMap.size() > 0) 510 return; 511 512 // The first two version indexes are reserved. 513 // Index 0 is LOCAL, index 1 is GLOBAL. 514 VersionMap.push_back(VersionMapEntry()); 515 VersionMap.push_back(VersionMapEntry()); 516 517 if (dot_gnu_version_d_sec) 518 LoadVersionDefs(dot_gnu_version_d_sec); 519 520 if (dot_gnu_version_r_sec) 521 LoadVersionNeeds(dot_gnu_version_r_sec); 522 } 523 524 template <typename ELFO, class ELFT> 525 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 526 const typename ELFO::Elf_Shdr *Sec, 527 ScopedPrinter &W) { 528 DictScope SS(W, "Version symbols"); 529 if (!Sec) 530 return; 531 StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 532 W.printNumber("Section Name", Name, Sec->sh_name); 533 W.printHex("Address", Sec->sh_addr); 534 W.printHex("Offset", Sec->sh_offset); 535 W.printNumber("Link", Sec->sh_link); 536 537 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset; 538 StringRef StrTable = Dumper->getDynamicStringTable(); 539 540 // Same number of entries in the dynamic symbol table (DT_SYMTAB). 541 ListScope Syms(W, "Symbols"); 542 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) { 543 DictScope S(W, "Symbol"); 544 std::string FullSymbolName = 545 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */); 546 W.printNumber("Version", *P); 547 W.printString("Name", FullSymbolName); 548 P += sizeof(typename ELFO::Elf_Half); 549 } 550 } 551 552 static const EnumEntry<unsigned> SymVersionFlags[] = { 553 {"Base", "BASE", VER_FLG_BASE}, 554 {"Weak", "WEAK", VER_FLG_WEAK}, 555 {"Info", "INFO", VER_FLG_INFO}}; 556 557 template <typename ELFO, class ELFT> 558 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper, 559 const ELFO *Obj, 560 const typename ELFO::Elf_Shdr *Sec, 561 ScopedPrinter &W) { 562 using VerDef = typename ELFO::Elf_Verdef; 563 using VerdAux = typename ELFO::Elf_Verdaux; 564 565 DictScope SD(W, "SHT_GNU_verdef"); 566 if (!Sec) 567 return; 568 569 // The number of entries in the section SHT_GNU_verdef 570 // is determined by DT_VERDEFNUM tag. 571 unsigned VerDefsNum = 0; 572 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) { 573 if (Dyn.d_tag == DT_VERDEFNUM) 574 VerDefsNum = Dyn.d_un.d_val; 575 } 576 const uint8_t *SecStartAddress = 577 (const uint8_t *)Obj->base() + Sec->sh_offset; 578 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size; 579 const uint8_t *P = SecStartAddress; 580 const typename ELFO::Elf_Shdr *StrTab = 581 unwrapOrError(Obj->getSection(Sec->sh_link)); 582 583 while (VerDefsNum--) { 584 if (P + sizeof(VerDef) > SecEndAddress) 585 report_fatal_error("invalid offset in the section"); 586 587 auto *VD = reinterpret_cast<const VerDef *>(P); 588 DictScope Def(W, "Definition"); 589 W.printNumber("Version", VD->vd_version); 590 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags)); 591 W.printNumber("Index", VD->vd_ndx); 592 W.printNumber("Hash", VD->vd_hash); 593 W.printString("Name", 594 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 595 VD->getAux()->vda_name))); 596 if (!VD->vd_cnt) 597 report_fatal_error("at least one definition string must exist"); 598 if (VD->vd_cnt > 2) 599 report_fatal_error("more than one predecessor is not expected"); 600 601 if (VD->vd_cnt == 2) { 602 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next; 603 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux); 604 W.printString("Predecessor", 605 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 606 Aux->vda_name))); 607 } 608 609 P += VD->vd_next; 610 } 611 } 612 613 template <typename ELFO, class ELFT> 614 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper, 615 const ELFO *Obj, 616 const typename ELFO::Elf_Shdr *Sec, 617 ScopedPrinter &W) { 618 using VerNeed = typename ELFO::Elf_Verneed; 619 using VernAux = typename ELFO::Elf_Vernaux; 620 621 DictScope SD(W, "SHT_GNU_verneed"); 622 if (!Sec) 623 return; 624 625 unsigned VerNeedNum = 0; 626 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) 627 if (Dyn.d_tag == DT_VERNEEDNUM) 628 VerNeedNum = Dyn.d_un.d_val; 629 630 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset; 631 const typename ELFO::Elf_Shdr *StrTab = 632 unwrapOrError(Obj->getSection(Sec->sh_link)); 633 634 const uint8_t *P = SecData; 635 for (unsigned I = 0; I < VerNeedNum; ++I) { 636 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P); 637 DictScope Entry(W, "Dependency"); 638 W.printNumber("Version", Need->vn_version); 639 W.printNumber("Count", Need->vn_cnt); 640 W.printString("FileName", 641 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 642 Need->vn_file))); 643 644 const uint8_t *PAux = P + Need->vn_aux; 645 for (unsigned J = 0; J < Need->vn_cnt; ++J) { 646 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux); 647 DictScope Entry(W, "Entry"); 648 W.printNumber("Hash", Aux->vna_hash); 649 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags)); 650 W.printNumber("Index", Aux->vna_other); 651 W.printString("Name", 652 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 653 Aux->vna_name))); 654 PAux += Aux->vna_next; 655 } 656 P += Need->vn_next; 657 } 658 } 659 660 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() { 661 // Dump version symbol section. 662 printVersionSymbolSection(this, Obj, dot_gnu_version_sec, W); 663 664 // Dump version definition section. 665 printVersionDefinitionSection(this, Obj, dot_gnu_version_d_sec, W); 666 667 // Dump version dependency section. 668 printVersionDependencySection(this, Obj, dot_gnu_version_r_sec, W); 669 } 670 671 template <typename ELFT> 672 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, 673 const Elf_Sym *symb, 674 bool &IsDefault) const { 675 // This is a dynamic symbol. Look in the GNU symbol version table. 676 if (!dot_gnu_version_sec) { 677 // No version table. 678 IsDefault = false; 679 return StringRef(""); 680 } 681 682 // Determine the position in the symbol table of this entry. 683 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) - 684 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) / 685 sizeof(Elf_Sym); 686 687 // Get the corresponding version index entry 688 const Elf_Versym *vs = unwrapOrError( 689 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index)); 690 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION; 691 692 // Special markers for unversioned symbols. 693 if (version_index == ELF::VER_NDX_LOCAL || 694 version_index == ELF::VER_NDX_GLOBAL) { 695 IsDefault = false; 696 return StringRef(""); 697 } 698 699 // Lookup this symbol in the version table 700 LoadVersionMap(); 701 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull()) 702 reportError("Invalid version entry"); 703 const VersionMapEntry &entry = VersionMap[version_index]; 704 705 // Get the version name string 706 size_t name_offset; 707 if (entry.isVerdef()) { 708 // The first Verdaux entry holds the name. 709 name_offset = entry.getVerdef()->getAux()->vda_name; 710 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN); 711 } else { 712 name_offset = entry.getVernaux()->vna_name; 713 IsDefault = false; 714 } 715 if (name_offset >= StrTab.size()) 716 reportError("Invalid string offset"); 717 return StringRef(StrTab.data() + name_offset); 718 } 719 720 template <typename ELFT> 721 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol, 722 StringRef StrTable, 723 bool IsDynamic) const { 724 StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable)); 725 if (!IsDynamic) 726 return SymbolName; 727 728 std::string FullSymbolName(SymbolName); 729 730 bool IsDefault; 731 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault); 732 FullSymbolName += (IsDefault ? "@@" : "@"); 733 FullSymbolName += Version; 734 return FullSymbolName; 735 } 736 737 template <typename ELFT> 738 static void 739 getSectionNameIndex(const ELFFile<ELFT> &Obj, const typename ELFT::Sym *Symbol, 740 const typename ELFT::Sym *FirstSym, 741 ArrayRef<typename ELFT::Word> ShndxTable, 742 StringRef &SectionName, unsigned &SectionIndex) { 743 SectionIndex = Symbol->st_shndx; 744 if (Symbol->isUndefined()) 745 SectionName = "Undefined"; 746 else if (Symbol->isProcessorSpecific()) 747 SectionName = "Processor Specific"; 748 else if (Symbol->isOSSpecific()) 749 SectionName = "Operating System Specific"; 750 else if (Symbol->isAbsolute()) 751 SectionName = "Absolute"; 752 else if (Symbol->isCommon()) 753 SectionName = "Common"; 754 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX) 755 SectionName = "Reserved"; 756 else { 757 if (SectionIndex == SHN_XINDEX) 758 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 759 Symbol, FirstSym, ShndxTable)); 760 const typename ELFT::Shdr *Sec = 761 unwrapOrError(Obj.getSection(SectionIndex)); 762 SectionName = unwrapOrError(Obj.getSectionName(Sec)); 763 } 764 } 765 766 template <class ELFO> 767 static const typename ELFO::Elf_Shdr * 768 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) { 769 for (const auto &Shdr : unwrapOrError(Obj->sections())) 770 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0) 771 return &Shdr; 772 return nullptr; 773 } 774 775 template <class ELFO> 776 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj, 777 StringRef Name) { 778 for (const auto &Shdr : unwrapOrError(Obj.sections())) { 779 if (Name == unwrapOrError(Obj.getSectionName(&Shdr))) 780 return &Shdr; 781 } 782 return nullptr; 783 } 784 785 static const EnumEntry<unsigned> ElfClass[] = { 786 {"None", "none", ELF::ELFCLASSNONE}, 787 {"32-bit", "ELF32", ELF::ELFCLASS32}, 788 {"64-bit", "ELF64", ELF::ELFCLASS64}, 789 }; 790 791 static const EnumEntry<unsigned> ElfDataEncoding[] = { 792 {"None", "none", ELF::ELFDATANONE}, 793 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB}, 794 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB}, 795 }; 796 797 static const EnumEntry<unsigned> ElfObjectFileType[] = { 798 {"None", "NONE (none)", ELF::ET_NONE}, 799 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL}, 800 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC}, 801 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN}, 802 {"Core", "CORE (Core file)", ELF::ET_CORE}, 803 }; 804 805 static const EnumEntry<unsigned> ElfOSABI[] = { 806 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE}, 807 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX}, 808 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD}, 809 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX}, 810 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD}, 811 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS}, 812 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX}, 813 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX}, 814 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD}, 815 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64}, 816 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO}, 817 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD}, 818 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS}, 819 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK}, 820 {"AROS", "AROS", ELF::ELFOSABI_AROS}, 821 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS}, 822 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI}, 823 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI}, 824 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX}, 825 {"ARM", "ARM", ELF::ELFOSABI_ARM}, 826 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE} 827 }; 828 829 static const EnumEntry<unsigned> ElfMachineType[] = { 830 ENUM_ENT(EM_NONE, "None"), 831 ENUM_ENT(EM_M32, "WE32100"), 832 ENUM_ENT(EM_SPARC, "Sparc"), 833 ENUM_ENT(EM_386, "Intel 80386"), 834 ENUM_ENT(EM_68K, "MC68000"), 835 ENUM_ENT(EM_88K, "MC88000"), 836 ENUM_ENT(EM_IAMCU, "EM_IAMCU"), 837 ENUM_ENT(EM_860, "Intel 80860"), 838 ENUM_ENT(EM_MIPS, "MIPS R3000"), 839 ENUM_ENT(EM_S370, "IBM System/370"), 840 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"), 841 ENUM_ENT(EM_PARISC, "HPPA"), 842 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"), 843 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"), 844 ENUM_ENT(EM_960, "Intel 80960"), 845 ENUM_ENT(EM_PPC, "PowerPC"), 846 ENUM_ENT(EM_PPC64, "PowerPC64"), 847 ENUM_ENT(EM_S390, "IBM S/390"), 848 ENUM_ENT(EM_SPU, "SPU"), 849 ENUM_ENT(EM_V800, "NEC V800 series"), 850 ENUM_ENT(EM_FR20, "Fujistsu FR20"), 851 ENUM_ENT(EM_RH32, "TRW RH-32"), 852 ENUM_ENT(EM_RCE, "Motorola RCE"), 853 ENUM_ENT(EM_ARM, "ARM"), 854 ENUM_ENT(EM_ALPHA, "EM_ALPHA"), 855 ENUM_ENT(EM_SH, "Hitachi SH"), 856 ENUM_ENT(EM_SPARCV9, "Sparc v9"), 857 ENUM_ENT(EM_TRICORE, "Siemens Tricore"), 858 ENUM_ENT(EM_ARC, "ARC"), 859 ENUM_ENT(EM_H8_300, "Hitachi H8/300"), 860 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"), 861 ENUM_ENT(EM_H8S, "Hitachi H8S"), 862 ENUM_ENT(EM_H8_500, "Hitachi H8/500"), 863 ENUM_ENT(EM_IA_64, "Intel IA-64"), 864 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"), 865 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"), 866 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"), 867 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"), 868 ENUM_ENT(EM_PCP, "Siemens PCP"), 869 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"), 870 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"), 871 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"), 872 ENUM_ENT(EM_ME16, "Toyota ME16 processor"), 873 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"), 874 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"), 875 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"), 876 ENUM_ENT(EM_PDSP, "Sony DSP processor"), 877 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"), 878 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"), 879 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"), 880 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"), 881 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"), 882 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"), 883 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"), 884 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"), 885 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"), 886 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"), 887 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"), 888 ENUM_ENT(EM_VAX, "Digital VAX"), 889 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"), 890 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"), 891 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"), 892 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"), 893 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"), 894 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"), 895 ENUM_ENT(EM_PRISM, "Vitesse Prism"), 896 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"), 897 ENUM_ENT(EM_FR30, "Fujitsu FR30"), 898 ENUM_ENT(EM_D10V, "Mitsubishi D10V"), 899 ENUM_ENT(EM_D30V, "Mitsubishi D30V"), 900 ENUM_ENT(EM_V850, "NEC v850"), 901 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"), 902 ENUM_ENT(EM_MN10300, "Matsushita MN10300"), 903 ENUM_ENT(EM_MN10200, "Matsushita MN10200"), 904 ENUM_ENT(EM_PJ, "picoJava"), 905 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"), 906 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"), 907 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"), 908 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"), 909 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"), 910 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"), 911 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"), 912 ENUM_ENT(EM_SNP1K, "EM_SNP1K"), 913 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"), 914 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"), 915 ENUM_ENT(EM_MAX, "MAX Processor"), 916 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"), 917 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"), 918 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"), 919 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"), 920 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"), 921 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"), 922 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"), 923 ENUM_ENT(EM_UNICORE, "Unicore"), 924 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"), 925 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"), 926 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"), 927 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"), 928 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"), 929 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"), 930 ENUM_ENT(EM_M16C, "Renesas M16C"), 931 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"), 932 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"), 933 ENUM_ENT(EM_M32C, "Renesas M32C"), 934 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"), 935 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"), 936 ENUM_ENT(EM_SHARC, "EM_SHARC"), 937 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"), 938 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"), 939 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"), 940 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"), 941 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"), 942 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"), 943 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"), 944 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"), 945 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"), 946 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"), 947 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"), 948 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"), 949 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"), 950 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"), 951 ENUM_ENT(EM_8051, "Intel 8051 and variants"), 952 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"), 953 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"), 954 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"), 955 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"), 956 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"), 957 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"), 958 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"), 959 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"), 960 ENUM_ENT(EM_RX, "Renesas RX"), 961 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"), 962 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"), 963 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"), 964 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"), 965 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"), 966 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"), 967 ENUM_ENT(EM_L10M, "EM_L10M"), 968 ENUM_ENT(EM_K10M, "EM_K10M"), 969 ENUM_ENT(EM_AARCH64, "AArch64"), 970 ENUM_ENT(EM_AVR32, "Atmel AVR 8-bit microcontroller"), 971 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"), 972 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"), 973 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"), 974 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"), 975 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"), 976 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"), 977 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"), 978 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"), 979 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"), 980 ENUM_ENT(EM_OPEN8, "EM_OPEN8"), 981 ENUM_ENT(EM_RL78, "Renesas RL78"), 982 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"), 983 ENUM_ENT(EM_78KOR, "EM_78KOR"), 984 ENUM_ENT(EM_56800EX, "EM_56800EX"), 985 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"), 986 ENUM_ENT(EM_RISCV, "RISC-V"), 987 ENUM_ENT(EM_WEBASSEMBLY, "EM_WEBASSEMBLY"), 988 ENUM_ENT(EM_LANAI, "EM_LANAI"), 989 ENUM_ENT(EM_BPF, "EM_BPF"), 990 }; 991 992 static const EnumEntry<unsigned> ElfSymbolBindings[] = { 993 {"Local", "LOCAL", ELF::STB_LOCAL}, 994 {"Global", "GLOBAL", ELF::STB_GLOBAL}, 995 {"Weak", "WEAK", ELF::STB_WEAK}, 996 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}}; 997 998 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = { 999 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT}, 1000 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL}, 1001 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN}, 1002 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}}; 1003 1004 static const EnumEntry<unsigned> ElfSymbolTypes[] = { 1005 {"None", "NOTYPE", ELF::STT_NOTYPE}, 1006 {"Object", "OBJECT", ELF::STT_OBJECT}, 1007 {"Function", "FUNC", ELF::STT_FUNC}, 1008 {"Section", "SECTION", ELF::STT_SECTION}, 1009 {"File", "FILE", ELF::STT_FILE}, 1010 {"Common", "COMMON", ELF::STT_COMMON}, 1011 {"TLS", "TLS", ELF::STT_TLS}, 1012 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}}; 1013 1014 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = { 1015 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL } 1016 }; 1017 1018 static const char *getGroupType(uint32_t Flag) { 1019 if (Flag & ELF::GRP_COMDAT) 1020 return "COMDAT"; 1021 else 1022 return "(unknown)"; 1023 } 1024 1025 static const EnumEntry<unsigned> ElfSectionFlags[] = { 1026 ENUM_ENT(SHF_WRITE, "W"), 1027 ENUM_ENT(SHF_ALLOC, "A"), 1028 ENUM_ENT(SHF_EXCLUDE, "E"), 1029 ENUM_ENT(SHF_EXECINSTR, "X"), 1030 ENUM_ENT(SHF_MERGE, "M"), 1031 ENUM_ENT(SHF_STRINGS, "S"), 1032 ENUM_ENT(SHF_INFO_LINK, "I"), 1033 ENUM_ENT(SHF_LINK_ORDER, "L"), 1034 ENUM_ENT(SHF_OS_NONCONFORMING, "o"), 1035 ENUM_ENT(SHF_GROUP, "G"), 1036 ENUM_ENT(SHF_TLS, "T"), 1037 ENUM_ENT(SHF_MASKOS, "o"), 1038 ENUM_ENT(SHF_MASKPROC, "p"), 1039 ENUM_ENT_1(SHF_COMPRESSED), 1040 }; 1041 1042 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = { 1043 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION), 1044 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION) 1045 }; 1046 1047 static const EnumEntry<unsigned> ElfARMSectionFlags[] = { 1048 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE) 1049 }; 1050 1051 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = { 1052 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL) 1053 }; 1054 1055 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = { 1056 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES), 1057 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ), 1058 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ), 1059 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP), 1060 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ), 1061 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ), 1062 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ), 1063 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING ) 1064 }; 1065 1066 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = { 1067 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE) 1068 }; 1069 1070 static std::string getGNUFlags(uint64_t Flags) { 1071 std::string Str; 1072 for (auto Entry : ElfSectionFlags) { 1073 uint64_t Flag = Entry.Value & Flags; 1074 Flags &= ~Entry.Value; 1075 switch (Flag) { 1076 case ELF::SHF_WRITE: 1077 case ELF::SHF_ALLOC: 1078 case ELF::SHF_EXECINSTR: 1079 case ELF::SHF_MERGE: 1080 case ELF::SHF_STRINGS: 1081 case ELF::SHF_INFO_LINK: 1082 case ELF::SHF_LINK_ORDER: 1083 case ELF::SHF_OS_NONCONFORMING: 1084 case ELF::SHF_GROUP: 1085 case ELF::SHF_TLS: 1086 case ELF::SHF_EXCLUDE: 1087 Str += Entry.AltName; 1088 break; 1089 default: 1090 if (Flag & ELF::SHF_MASKOS) 1091 Str += "o"; 1092 else if (Flag & ELF::SHF_MASKPROC) 1093 Str += "p"; 1094 else if (Flag) 1095 Str += "x"; 1096 } 1097 } 1098 return Str; 1099 } 1100 1101 static const char *getElfSegmentType(unsigned Arch, unsigned Type) { 1102 // Check potentially overlapped processor-specific 1103 // program header type. 1104 switch (Arch) { 1105 case ELF::EM_ARM: 1106 switch (Type) { 1107 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX); 1108 } 1109 case ELF::EM_MIPS: 1110 case ELF::EM_MIPS_RS3_LE: 1111 switch (Type) { 1112 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO); 1113 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC); 1114 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS); 1115 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS); 1116 } 1117 } 1118 1119 switch (Type) { 1120 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL ); 1121 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD ); 1122 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC); 1123 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP ); 1124 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE ); 1125 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB ); 1126 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR ); 1127 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS ); 1128 1129 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME); 1130 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND); 1131 1132 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK); 1133 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO); 1134 1135 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE); 1136 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED); 1137 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA); 1138 1139 default: return ""; 1140 } 1141 } 1142 1143 static std::string getElfPtType(unsigned Arch, unsigned Type) { 1144 switch (Type) { 1145 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL) 1146 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD) 1147 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC) 1148 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP) 1149 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE) 1150 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB) 1151 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR) 1152 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS) 1153 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME) 1154 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND) 1155 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK) 1156 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO) 1157 default: 1158 // All machine specific PT_* types 1159 switch (Arch) { 1160 case ELF::EM_ARM: 1161 if (Type == ELF::PT_ARM_EXIDX) 1162 return "EXIDX"; 1163 return ""; 1164 case ELF::EM_MIPS: 1165 case ELF::EM_MIPS_RS3_LE: 1166 switch (Type) { 1167 case PT_MIPS_REGINFO: 1168 return "REGINFO"; 1169 case PT_MIPS_RTPROC: 1170 return "RTPROC"; 1171 case PT_MIPS_OPTIONS: 1172 return "OPTIONS"; 1173 case PT_MIPS_ABIFLAGS: 1174 return "ABIFLAGS"; 1175 } 1176 return ""; 1177 } 1178 } 1179 return std::string("<unknown>: ") + to_string(format_hex(Type, 1)); 1180 } 1181 1182 static const EnumEntry<unsigned> ElfSegmentFlags[] = { 1183 LLVM_READOBJ_ENUM_ENT(ELF, PF_X), 1184 LLVM_READOBJ_ENUM_ENT(ELF, PF_W), 1185 LLVM_READOBJ_ENUM_ENT(ELF, PF_R) 1186 }; 1187 1188 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = { 1189 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER), 1190 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC), 1191 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC), 1192 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2), 1193 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE), 1194 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64), 1195 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008), 1196 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32), 1197 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64), 1198 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32), 1199 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64), 1200 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900), 1201 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010), 1202 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100), 1203 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650), 1204 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120), 1205 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111), 1206 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1), 1207 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON), 1208 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR), 1209 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2), 1210 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3), 1211 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400), 1212 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900), 1213 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500), 1214 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000), 1215 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E), 1216 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F), 1217 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A), 1218 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS), 1219 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16), 1220 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX), 1221 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1), 1222 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2), 1223 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3), 1224 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4), 1225 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5), 1226 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32), 1227 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64), 1228 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2), 1229 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2), 1230 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6), 1231 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6) 1232 }; 1233 1234 static const EnumEntry<unsigned> ElfSymOtherFlags[] = { 1235 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL), 1236 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN), 1237 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED) 1238 }; 1239 1240 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = { 1241 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1242 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1243 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC), 1244 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS) 1245 }; 1246 1247 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = { 1248 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1249 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1250 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16) 1251 }; 1252 1253 static const char *getElfMipsOptionsOdkType(unsigned Odk) { 1254 switch (Odk) { 1255 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL); 1256 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO); 1257 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS); 1258 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD); 1259 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH); 1260 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL); 1261 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS); 1262 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND); 1263 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR); 1264 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP); 1265 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT); 1266 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE); 1267 default: 1268 return "Unknown"; 1269 } 1270 } 1271 1272 template <typename ELFT> 1273 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer) 1274 : ObjDumper(Writer), Obj(Obj) { 1275 SmallVector<const Elf_Phdr *, 4> LoadSegments; 1276 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 1277 if (Phdr.p_type == ELF::PT_DYNAMIC) { 1278 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn)); 1279 continue; 1280 } 1281 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0) 1282 continue; 1283 LoadSegments.push_back(&Phdr); 1284 } 1285 1286 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1287 switch (Sec.sh_type) { 1288 case ELF::SHT_SYMTAB: 1289 if (DotSymtabSec != nullptr) 1290 reportError("Multilpe SHT_SYMTAB"); 1291 DotSymtabSec = &Sec; 1292 break; 1293 case ELF::SHT_DYNSYM: 1294 if (DynSymRegion.Size) 1295 reportError("Multilpe SHT_DYNSYM"); 1296 DynSymRegion = createDRIFrom(&Sec); 1297 // This is only used (if Elf_Shdr present)for naming section in GNU style 1298 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec)); 1299 break; 1300 case ELF::SHT_SYMTAB_SHNDX: 1301 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec)); 1302 break; 1303 case ELF::SHT_GNU_versym: 1304 if (dot_gnu_version_sec != nullptr) 1305 reportError("Multiple SHT_GNU_versym"); 1306 dot_gnu_version_sec = &Sec; 1307 break; 1308 case ELF::SHT_GNU_verdef: 1309 if (dot_gnu_version_d_sec != nullptr) 1310 reportError("Multiple SHT_GNU_verdef"); 1311 dot_gnu_version_d_sec = &Sec; 1312 break; 1313 case ELF::SHT_GNU_verneed: 1314 if (dot_gnu_version_r_sec != nullptr) 1315 reportError("Multilpe SHT_GNU_verneed"); 1316 dot_gnu_version_r_sec = &Sec; 1317 break; 1318 } 1319 } 1320 1321 parseDynamicTable(LoadSegments); 1322 1323 if (opts::Output == opts::GNU) 1324 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this)); 1325 else 1326 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this)); 1327 } 1328 1329 template <typename ELFT> 1330 void ELFDumper<ELFT>::parseDynamicTable( 1331 ArrayRef<const Elf_Phdr *> LoadSegments) { 1332 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * { 1333 const Elf_Phdr *const *I = std::upper_bound( 1334 LoadSegments.begin(), LoadSegments.end(), VAddr, compareAddr<ELFT>); 1335 if (I == LoadSegments.begin()) 1336 report_fatal_error("Virtual address is not in any segment"); 1337 --I; 1338 const Elf_Phdr &Phdr = **I; 1339 uint64_t Delta = VAddr - Phdr.p_vaddr; 1340 if (Delta >= Phdr.p_filesz) 1341 report_fatal_error("Virtual address is not in any segment"); 1342 return Obj->base() + Phdr.p_offset + Delta; 1343 }; 1344 1345 uint64_t SONameOffset = 0; 1346 const char *StringTableBegin = nullptr; 1347 uint64_t StringTableSize = 0; 1348 for (const Elf_Dyn &Dyn : dynamic_table()) { 1349 switch (Dyn.d_tag) { 1350 case ELF::DT_HASH: 1351 HashTable = 1352 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr())); 1353 break; 1354 case ELF::DT_GNU_HASH: 1355 GnuHashTable = 1356 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr())); 1357 break; 1358 case ELF::DT_STRTAB: 1359 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr()); 1360 break; 1361 case ELF::DT_STRSZ: 1362 StringTableSize = Dyn.getVal(); 1363 break; 1364 case ELF::DT_SYMTAB: 1365 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr()); 1366 DynSymRegion.EntSize = sizeof(Elf_Sym); 1367 break; 1368 case ELF::DT_RELA: 1369 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr()); 1370 break; 1371 case ELF::DT_RELASZ: 1372 DynRelaRegion.Size = Dyn.getVal(); 1373 break; 1374 case ELF::DT_RELAENT: 1375 DynRelaRegion.EntSize = Dyn.getVal(); 1376 break; 1377 case ELF::DT_SONAME: 1378 SONameOffset = Dyn.getVal(); 1379 break; 1380 case ELF::DT_REL: 1381 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1382 break; 1383 case ELF::DT_RELSZ: 1384 DynRelRegion.Size = Dyn.getVal(); 1385 break; 1386 case ELF::DT_RELENT: 1387 DynRelRegion.EntSize = Dyn.getVal(); 1388 break; 1389 case ELF::DT_PLTREL: 1390 if (Dyn.getVal() == DT_REL) 1391 DynPLTRelRegion.EntSize = sizeof(Elf_Rel); 1392 else if (Dyn.getVal() == DT_RELA) 1393 DynPLTRelRegion.EntSize = sizeof(Elf_Rela); 1394 else 1395 reportError(Twine("unknown DT_PLTREL value of ") + 1396 Twine((uint64_t)Dyn.getVal())); 1397 break; 1398 case ELF::DT_JMPREL: 1399 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1400 break; 1401 case ELF::DT_PLTRELSZ: 1402 DynPLTRelRegion.Size = Dyn.getVal(); 1403 break; 1404 } 1405 } 1406 if (StringTableBegin) 1407 DynamicStringTable = StringRef(StringTableBegin, StringTableSize); 1408 if (SONameOffset) 1409 SOName = getDynamicString(SONameOffset); 1410 } 1411 1412 template <typename ELFT> 1413 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const { 1414 return DynRelRegion.getAsArrayRef<Elf_Rel>(); 1415 } 1416 1417 template <typename ELFT> 1418 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const { 1419 return DynRelaRegion.getAsArrayRef<Elf_Rela>(); 1420 } 1421 1422 template<class ELFT> 1423 void ELFDumper<ELFT>::printFileHeaders() { 1424 ELFDumperStyle->printFileHeaders(Obj); 1425 } 1426 1427 template<class ELFT> 1428 void ELFDumper<ELFT>::printSections() { 1429 ELFDumperStyle->printSections(Obj); 1430 } 1431 1432 template<class ELFT> 1433 void ELFDumper<ELFT>::printRelocations() { 1434 ELFDumperStyle->printRelocations(Obj); 1435 } 1436 1437 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() { 1438 ELFDumperStyle->printProgramHeaders(Obj); 1439 } 1440 1441 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() { 1442 ELFDumperStyle->printDynamicRelocations(Obj); 1443 } 1444 1445 template<class ELFT> 1446 void ELFDumper<ELFT>::printSymbols() { 1447 ELFDumperStyle->printSymbols(Obj); 1448 } 1449 1450 template<class ELFT> 1451 void ELFDumper<ELFT>::printDynamicSymbols() { 1452 ELFDumperStyle->printDynamicSymbols(Obj); 1453 } 1454 1455 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() { 1456 ELFDumperStyle->printHashHistogram(Obj); 1457 } 1458 1459 template <class ELFT> void ELFDumper<ELFT>::printNotes() { 1460 ELFDumperStyle->printNotes(Obj); 1461 } 1462 1463 #define LLVM_READOBJ_TYPE_CASE(name) \ 1464 case DT_##name: return #name 1465 1466 static const char *getTypeString(unsigned Arch, uint64_t Type) { 1467 switch (Arch) { 1468 case EM_HEXAGON: 1469 switch (Type) { 1470 LLVM_READOBJ_TYPE_CASE(HEXAGON_SYMSZ); 1471 LLVM_READOBJ_TYPE_CASE(HEXAGON_VER); 1472 LLVM_READOBJ_TYPE_CASE(HEXAGON_PLT); 1473 } 1474 case EM_MIPS: 1475 switch (Type) { 1476 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL); 1477 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION); 1478 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS); 1479 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS); 1480 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO); 1481 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO); 1482 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO); 1483 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM); 1484 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP); 1485 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT); 1486 LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS); 1487 } 1488 } 1489 switch (Type) { 1490 LLVM_READOBJ_TYPE_CASE(BIND_NOW); 1491 LLVM_READOBJ_TYPE_CASE(DEBUG); 1492 LLVM_READOBJ_TYPE_CASE(FINI); 1493 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY); 1494 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ); 1495 LLVM_READOBJ_TYPE_CASE(FLAGS); 1496 LLVM_READOBJ_TYPE_CASE(FLAGS_1); 1497 LLVM_READOBJ_TYPE_CASE(HASH); 1498 LLVM_READOBJ_TYPE_CASE(INIT); 1499 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY); 1500 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ); 1501 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY); 1502 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ); 1503 LLVM_READOBJ_TYPE_CASE(JMPREL); 1504 LLVM_READOBJ_TYPE_CASE(NEEDED); 1505 LLVM_READOBJ_TYPE_CASE(NULL); 1506 LLVM_READOBJ_TYPE_CASE(PLTGOT); 1507 LLVM_READOBJ_TYPE_CASE(PLTREL); 1508 LLVM_READOBJ_TYPE_CASE(PLTRELSZ); 1509 LLVM_READOBJ_TYPE_CASE(REL); 1510 LLVM_READOBJ_TYPE_CASE(RELA); 1511 LLVM_READOBJ_TYPE_CASE(RELENT); 1512 LLVM_READOBJ_TYPE_CASE(RELSZ); 1513 LLVM_READOBJ_TYPE_CASE(RELAENT); 1514 LLVM_READOBJ_TYPE_CASE(RELASZ); 1515 LLVM_READOBJ_TYPE_CASE(RPATH); 1516 LLVM_READOBJ_TYPE_CASE(RUNPATH); 1517 LLVM_READOBJ_TYPE_CASE(SONAME); 1518 LLVM_READOBJ_TYPE_CASE(STRSZ); 1519 LLVM_READOBJ_TYPE_CASE(STRTAB); 1520 LLVM_READOBJ_TYPE_CASE(SYMBOLIC); 1521 LLVM_READOBJ_TYPE_CASE(SYMENT); 1522 LLVM_READOBJ_TYPE_CASE(SYMTAB); 1523 LLVM_READOBJ_TYPE_CASE(TEXTREL); 1524 LLVM_READOBJ_TYPE_CASE(VERDEF); 1525 LLVM_READOBJ_TYPE_CASE(VERDEFNUM); 1526 LLVM_READOBJ_TYPE_CASE(VERNEED); 1527 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM); 1528 LLVM_READOBJ_TYPE_CASE(VERSYM); 1529 LLVM_READOBJ_TYPE_CASE(RELACOUNT); 1530 LLVM_READOBJ_TYPE_CASE(RELCOUNT); 1531 LLVM_READOBJ_TYPE_CASE(GNU_HASH); 1532 LLVM_READOBJ_TYPE_CASE(TLSDESC_PLT); 1533 LLVM_READOBJ_TYPE_CASE(TLSDESC_GOT); 1534 LLVM_READOBJ_TYPE_CASE(AUXILIARY); 1535 LLVM_READOBJ_TYPE_CASE(FILTER); 1536 default: return "unknown"; 1537 } 1538 } 1539 1540 #undef LLVM_READOBJ_TYPE_CASE 1541 1542 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \ 1543 { #enum, prefix##_##enum } 1544 1545 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = { 1546 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN), 1547 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC), 1548 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL), 1549 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW), 1550 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS) 1551 }; 1552 1553 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = { 1554 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW), 1555 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL), 1556 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP), 1557 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE), 1558 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR), 1559 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST), 1560 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN), 1561 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN), 1562 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT), 1563 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS), 1564 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE), 1565 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB), 1566 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP), 1567 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT), 1568 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE), 1569 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE), 1570 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT), 1571 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF), 1572 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS), 1573 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR), 1574 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED), 1575 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC), 1576 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE), 1577 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT), 1578 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON) 1579 }; 1580 1581 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = { 1582 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE), 1583 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART), 1584 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT), 1585 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT), 1586 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE), 1587 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY), 1588 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT), 1589 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS), 1590 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT), 1591 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE), 1592 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD), 1593 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART), 1594 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED), 1595 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD), 1596 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF), 1597 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE) 1598 }; 1599 1600 #undef LLVM_READOBJ_DT_FLAG_ENT 1601 1602 template <typename T, typename TFlag> 1603 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) { 1604 using FlagEntry = EnumEntry<TFlag>; 1605 using FlagVector = SmallVector<FlagEntry, 10>; 1606 FlagVector SetFlags; 1607 1608 for (const auto &Flag : Flags) { 1609 if (Flag.Value == 0) 1610 continue; 1611 1612 if ((Value & Flag.Value) == Flag.Value) 1613 SetFlags.push_back(Flag); 1614 } 1615 1616 for (const auto &Flag : SetFlags) { 1617 OS << Flag.Name << " "; 1618 } 1619 } 1620 1621 template <class ELFT> 1622 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const { 1623 if (Value >= DynamicStringTable.size()) 1624 reportError("Invalid dynamic string table reference"); 1625 return StringRef(DynamicStringTable.data() + Value); 1626 } 1627 1628 static void printLibrary(raw_ostream &OS, const Twine &Tag, const Twine &Name) { 1629 OS << Tag << ": [" << Name << "]"; 1630 } 1631 1632 template <class ELFT> 1633 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { 1634 raw_ostream &OS = W.getOStream(); 1635 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64; 1636 switch (Type) { 1637 case DT_PLTREL: 1638 if (Value == DT_REL) { 1639 OS << "REL"; 1640 break; 1641 } else if (Value == DT_RELA) { 1642 OS << "RELA"; 1643 break; 1644 } 1645 LLVM_FALLTHROUGH; 1646 case DT_PLTGOT: 1647 case DT_HASH: 1648 case DT_STRTAB: 1649 case DT_SYMTAB: 1650 case DT_RELA: 1651 case DT_INIT: 1652 case DT_FINI: 1653 case DT_REL: 1654 case DT_JMPREL: 1655 case DT_INIT_ARRAY: 1656 case DT_FINI_ARRAY: 1657 case DT_PREINIT_ARRAY: 1658 case DT_DEBUG: 1659 case DT_VERDEF: 1660 case DT_VERNEED: 1661 case DT_VERSYM: 1662 case DT_GNU_HASH: 1663 case DT_NULL: 1664 case DT_MIPS_BASE_ADDRESS: 1665 case DT_MIPS_GOTSYM: 1666 case DT_MIPS_RLD_MAP: 1667 case DT_MIPS_RLD_MAP_REL: 1668 case DT_MIPS_PLTGOT: 1669 case DT_MIPS_OPTIONS: 1670 OS << format(ConvChar, Value); 1671 break; 1672 case DT_RELACOUNT: 1673 case DT_RELCOUNT: 1674 case DT_VERDEFNUM: 1675 case DT_VERNEEDNUM: 1676 case DT_MIPS_RLD_VERSION: 1677 case DT_MIPS_LOCAL_GOTNO: 1678 case DT_MIPS_SYMTABNO: 1679 case DT_MIPS_UNREFEXTNO: 1680 OS << Value; 1681 break; 1682 case DT_PLTRELSZ: 1683 case DT_RELASZ: 1684 case DT_RELAENT: 1685 case DT_STRSZ: 1686 case DT_SYMENT: 1687 case DT_RELSZ: 1688 case DT_RELENT: 1689 case DT_INIT_ARRAYSZ: 1690 case DT_FINI_ARRAYSZ: 1691 case DT_PREINIT_ARRAYSZ: 1692 OS << Value << " (bytes)"; 1693 break; 1694 case DT_NEEDED: 1695 printLibrary(OS, "Shared library", getDynamicString(Value)); 1696 break; 1697 case DT_SONAME: 1698 printLibrary(OS, "Library soname", getDynamicString(Value)); 1699 break; 1700 case DT_AUXILIARY: 1701 printLibrary(OS, "Auxiliary library", getDynamicString(Value)); 1702 break; 1703 case DT_FILTER: 1704 printLibrary(OS, "Filter library", getDynamicString(Value)); 1705 break; 1706 case DT_RPATH: 1707 case DT_RUNPATH: 1708 OS << getDynamicString(Value); 1709 break; 1710 case DT_MIPS_FLAGS: 1711 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS); 1712 break; 1713 case DT_FLAGS: 1714 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS); 1715 break; 1716 case DT_FLAGS_1: 1717 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS); 1718 break; 1719 default: 1720 OS << format(ConvChar, Value); 1721 break; 1722 } 1723 } 1724 1725 template<class ELFT> 1726 void ELFDumper<ELFT>::printUnwindInfo() { 1727 W.startLine() << "UnwindInfo not implemented.\n"; 1728 } 1729 1730 namespace { 1731 1732 template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() { 1733 const unsigned Machine = Obj->getHeader()->e_machine; 1734 if (Machine == EM_ARM) { 1735 ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx( 1736 W, Obj, DotSymtabSec); 1737 return Ctx.PrintUnwindInformation(); 1738 } 1739 W.startLine() << "UnwindInfo not implemented.\n"; 1740 } 1741 1742 } // end anonymous namespace 1743 1744 template<class ELFT> 1745 void ELFDumper<ELFT>::printDynamicTable() { 1746 auto I = dynamic_table().begin(); 1747 auto E = dynamic_table().end(); 1748 1749 if (I == E) 1750 return; 1751 1752 --E; 1753 while (I != E && E->getTag() == ELF::DT_NULL) 1754 --E; 1755 if (E->getTag() != ELF::DT_NULL) 1756 ++E; 1757 ++E; 1758 1759 ptrdiff_t Total = std::distance(I, E); 1760 if (Total == 0) 1761 return; 1762 1763 raw_ostream &OS = W.getOStream(); 1764 W.startLine() << "DynamicSection [ (" << Total << " entries)\n"; 1765 1766 bool Is64 = ELFT::Is64Bits; 1767 1768 W.startLine() 1769 << " Tag" << (Is64 ? " " : " ") << "Type" 1770 << " " << "Name/Value\n"; 1771 while (I != E) { 1772 const Elf_Dyn &Entry = *I; 1773 uintX_t Tag = Entry.getTag(); 1774 ++I; 1775 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " " 1776 << format("%-21s", getTypeString(Obj->getHeader()->e_machine, Tag)); 1777 printValue(Tag, Entry.getVal()); 1778 OS << "\n"; 1779 } 1780 1781 W.startLine() << "]\n"; 1782 } 1783 1784 template<class ELFT> 1785 void ELFDumper<ELFT>::printNeededLibraries() { 1786 ListScope D(W, "NeededLibraries"); 1787 1788 using LibsTy = std::vector<StringRef>; 1789 LibsTy Libs; 1790 1791 for (const auto &Entry : dynamic_table()) 1792 if (Entry.d_tag == ELF::DT_NEEDED) 1793 Libs.push_back(getDynamicString(Entry.d_un.d_val)); 1794 1795 std::stable_sort(Libs.begin(), Libs.end()); 1796 1797 for (const auto &L : Libs) { 1798 outs() << " " << L << "\n"; 1799 } 1800 } 1801 1802 1803 template <typename ELFT> 1804 void ELFDumper<ELFT>::printHashTable() { 1805 DictScope D(W, "HashTable"); 1806 if (!HashTable) 1807 return; 1808 W.printNumber("Num Buckets", HashTable->nbucket); 1809 W.printNumber("Num Chains", HashTable->nchain); 1810 W.printList("Buckets", HashTable->buckets()); 1811 W.printList("Chains", HashTable->chains()); 1812 } 1813 1814 template <typename ELFT> 1815 void ELFDumper<ELFT>::printGnuHashTable() { 1816 DictScope D(W, "GnuHashTable"); 1817 if (!GnuHashTable) 1818 return; 1819 W.printNumber("Num Buckets", GnuHashTable->nbuckets); 1820 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx); 1821 W.printNumber("Num Mask Words", GnuHashTable->maskwords); 1822 W.printNumber("Shift Count", GnuHashTable->shift2); 1823 W.printHexList("Bloom Filter", GnuHashTable->filter()); 1824 W.printList("Buckets", GnuHashTable->buckets()); 1825 Elf_Sym_Range Syms = dynamic_symbols(); 1826 unsigned NumSyms = std::distance(Syms.begin(), Syms.end()); 1827 if (!NumSyms) 1828 reportError("No dynamic symbol section"); 1829 W.printHexList("Values", GnuHashTable->values(NumSyms)); 1830 } 1831 1832 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() { 1833 outs() << "LoadName: " << SOName << '\n'; 1834 } 1835 1836 template <class ELFT> 1837 void ELFDumper<ELFT>::printAttributes() { 1838 W.startLine() << "Attributes not implemented.\n"; 1839 } 1840 1841 namespace { 1842 1843 template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() { 1844 if (Obj->getHeader()->e_machine != EM_ARM) { 1845 W.startLine() << "Attributes not implemented.\n"; 1846 return; 1847 } 1848 1849 DictScope BA(W, "BuildAttributes"); 1850 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1851 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES) 1852 continue; 1853 1854 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec)); 1855 if (Contents[0] != ARMBuildAttrs::Format_Version) { 1856 errs() << "unrecognised FormatVersion: 0x" << utohexstr(Contents[0]) 1857 << '\n'; 1858 continue; 1859 } 1860 1861 W.printHex("FormatVersion", Contents[0]); 1862 if (Contents.size() == 1) 1863 continue; 1864 1865 ARMAttributeParser(&W).Parse(Contents, true); 1866 } 1867 } 1868 1869 template <class ELFT> class MipsGOTParser { 1870 public: 1871 TYPEDEF_ELF_TYPES(ELFT) 1872 using GOTEntry = typename ELFO::Elf_Addr; 1873 1874 MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 1875 Elf_Dyn_Range DynTable, ScopedPrinter &W); 1876 1877 void parseGOT(); 1878 void parsePLT(); 1879 1880 private: 1881 ELFDumper<ELFT> *Dumper; 1882 const ELFO *Obj; 1883 ScopedPrinter &W; 1884 Optional<uint64_t> DtPltGot; 1885 Optional<uint64_t> DtLocalGotNum; 1886 Optional<uint64_t> DtGotSym; 1887 Optional<uint64_t> DtMipsPltGot; 1888 Optional<uint64_t> DtJmpRel; 1889 1890 std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const; 1891 const GOTEntry *makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum); 1892 1893 void printGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt, 1894 const GOTEntry *It); 1895 void printGlobalGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt, 1896 const GOTEntry *It, const Elf_Sym *Sym, 1897 StringRef StrTable, bool IsDynamic); 1898 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt, 1899 const GOTEntry *It, StringRef Purpose); 1900 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt, 1901 const GOTEntry *It, StringRef StrTable, 1902 const Elf_Sym *Sym); 1903 }; 1904 1905 } // end anonymous namespace 1906 1907 template <class ELFT> 1908 MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 1909 Elf_Dyn_Range DynTable, ScopedPrinter &W) 1910 : Dumper(Dumper), Obj(Obj), W(W) { 1911 for (const auto &Entry : DynTable) { 1912 switch (Entry.getTag()) { 1913 case ELF::DT_PLTGOT: 1914 DtPltGot = Entry.getVal(); 1915 break; 1916 case ELF::DT_MIPS_LOCAL_GOTNO: 1917 DtLocalGotNum = Entry.getVal(); 1918 break; 1919 case ELF::DT_MIPS_GOTSYM: 1920 DtGotSym = Entry.getVal(); 1921 break; 1922 case ELF::DT_MIPS_PLTGOT: 1923 DtMipsPltGot = Entry.getVal(); 1924 break; 1925 case ELF::DT_JMPREL: 1926 DtJmpRel = Entry.getVal(); 1927 break; 1928 } 1929 } 1930 } 1931 1932 template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() { 1933 // See "Global Offset Table" in Chapter 5 in the following document 1934 // for detailed GOT description. 1935 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf 1936 if (!DtPltGot) { 1937 W.startLine() << "Cannot find PLTGOT dynamic table tag.\n"; 1938 return; 1939 } 1940 if (!DtLocalGotNum) { 1941 W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n"; 1942 return; 1943 } 1944 if (!DtGotSym) { 1945 W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n"; 1946 return; 1947 } 1948 1949 StringRef StrTable = Dumper->getDynamicStringTable(); 1950 const Elf_Sym *DynSymBegin = Dumper->dynamic_symbols().begin(); 1951 const Elf_Sym *DynSymEnd = Dumper->dynamic_symbols().end(); 1952 std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd)); 1953 1954 if (*DtGotSym > DynSymTotal) 1955 report_fatal_error("MIPS_GOTSYM exceeds a number of dynamic symbols"); 1956 1957 std::size_t GlobalGotNum = DynSymTotal - *DtGotSym; 1958 1959 if (*DtLocalGotNum + GlobalGotNum == 0) { 1960 W.startLine() << "GOT is empty.\n"; 1961 return; 1962 } 1963 1964 const Elf_Shdr *GOTShdr = findNotEmptySectionByAddress(Obj, *DtPltGot); 1965 if (!GOTShdr) 1966 report_fatal_error("There is no not empty GOT section at 0x" + 1967 Twine::utohexstr(*DtPltGot)); 1968 1969 ArrayRef<uint8_t> GOT = unwrapOrError(Obj->getSectionContents(GOTShdr)); 1970 1971 if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(GOT)) 1972 report_fatal_error("Number of GOT entries exceeds the size of GOT section"); 1973 1974 const GOTEntry *GotBegin = makeGOTIter(GOT, 0); 1975 const GOTEntry *GotLocalEnd = makeGOTIter(GOT, *DtLocalGotNum); 1976 const GOTEntry *It = GotBegin; 1977 1978 DictScope GS(W, "Primary GOT"); 1979 1980 W.printHex("Canonical gp value", GOTShdr->sh_addr + 0x7ff0); 1981 { 1982 ListScope RS(W, "Reserved entries"); 1983 1984 { 1985 DictScope D(W, "Entry"); 1986 printGotEntry(GOTShdr->sh_addr, GotBegin, It++); 1987 W.printString("Purpose", StringRef("Lazy resolver")); 1988 } 1989 1990 if (It != GotLocalEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) { 1991 DictScope D(W, "Entry"); 1992 printGotEntry(GOTShdr->sh_addr, GotBegin, It++); 1993 W.printString("Purpose", StringRef("Module pointer (GNU extension)")); 1994 } 1995 } 1996 { 1997 ListScope LS(W, "Local entries"); 1998 for (; It != GotLocalEnd; ++It) { 1999 DictScope D(W, "Entry"); 2000 printGotEntry(GOTShdr->sh_addr, GotBegin, It); 2001 } 2002 } 2003 { 2004 ListScope GS(W, "Global entries"); 2005 2006 const GOTEntry *GotGlobalEnd = 2007 makeGOTIter(GOT, *DtLocalGotNum + GlobalGotNum); 2008 const Elf_Sym *GotDynSym = DynSymBegin + *DtGotSym; 2009 for (; It != GotGlobalEnd; ++It) { 2010 DictScope D(W, "Entry"); 2011 printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++, StrTable, 2012 true); 2013 } 2014 } 2015 2016 std::size_t SpecGotNum = getGOTTotal(GOT) - *DtLocalGotNum - GlobalGotNum; 2017 W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum)); 2018 } 2019 2020 template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() { 2021 if (!DtMipsPltGot) { 2022 W.startLine() << "Cannot find MIPS_PLTGOT dynamic table tag.\n"; 2023 return; 2024 } 2025 if (!DtJmpRel) { 2026 W.startLine() << "Cannot find JMPREL dynamic table tag.\n"; 2027 return; 2028 } 2029 2030 const Elf_Shdr *PLTShdr = findNotEmptySectionByAddress(Obj, *DtMipsPltGot); 2031 if (!PLTShdr) 2032 report_fatal_error("There is no not empty PLTGOT section at 0x " + 2033 Twine::utohexstr(*DtMipsPltGot)); 2034 ArrayRef<uint8_t> PLT = unwrapOrError(Obj->getSectionContents(PLTShdr)); 2035 2036 const Elf_Shdr *PLTRelShdr = findNotEmptySectionByAddress(Obj, *DtJmpRel); 2037 if (!PLTRelShdr) 2038 report_fatal_error("There is no not empty RELPLT section at 0x" + 2039 Twine::utohexstr(*DtJmpRel)); 2040 const Elf_Shdr *SymTable = 2041 unwrapOrError(Obj->getSection(PLTRelShdr->sh_link)); 2042 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTable)); 2043 2044 const GOTEntry *PLTBegin = makeGOTIter(PLT, 0); 2045 const GOTEntry *PLTEnd = makeGOTIter(PLT, getGOTTotal(PLT)); 2046 const GOTEntry *It = PLTBegin; 2047 2048 DictScope GS(W, "PLT GOT"); 2049 { 2050 ListScope RS(W, "Reserved entries"); 2051 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "PLT lazy resolver"); 2052 if (It != PLTEnd) 2053 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "Module pointer"); 2054 } 2055 { 2056 ListScope GS(W, "Entries"); 2057 2058 switch (PLTRelShdr->sh_type) { 2059 case ELF::SHT_REL: 2060 for (const Elf_Rel &Rel : unwrapOrError(Obj->rels(PLTRelShdr))) { 2061 const Elf_Sym *Sym = 2062 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable)); 2063 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym); 2064 if (++It == PLTEnd) 2065 break; 2066 } 2067 break; 2068 case ELF::SHT_RELA: 2069 for (const Elf_Rela &Rel : unwrapOrError(Obj->relas(PLTRelShdr))) { 2070 const Elf_Sym *Sym = 2071 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable)); 2072 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym); 2073 if (++It == PLTEnd) 2074 break; 2075 } 2076 break; 2077 } 2078 } 2079 } 2080 2081 template <class ELFT> 2082 std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const { 2083 return GOT.size() / sizeof(GOTEntry); 2084 } 2085 2086 template <class ELFT> 2087 const typename MipsGOTParser<ELFT>::GOTEntry * 2088 MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) { 2089 const char *Data = reinterpret_cast<const char *>(GOT.data()); 2090 return reinterpret_cast<const GOTEntry *>(Data + EntryNum * sizeof(GOTEntry)); 2091 } 2092 2093 template <class ELFT> 2094 void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr, 2095 const GOTEntry *BeginIt, 2096 const GOTEntry *It) { 2097 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry); 2098 W.printHex("Address", GotAddr + Offset); 2099 W.printNumber("Access", Offset - 0x7ff0); 2100 W.printHex("Initial", *It); 2101 } 2102 2103 template <class ELFT> 2104 void MipsGOTParser<ELFT>::printGlobalGotEntry( 2105 uint64_t GotAddr, const GOTEntry *BeginIt, const GOTEntry *It, 2106 const Elf_Sym *Sym, StringRef StrTable, bool IsDynamic) { 2107 printGotEntry(GotAddr, BeginIt, It); 2108 2109 W.printHex("Value", Sym->st_value); 2110 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 2111 2112 unsigned SectionIndex = 0; 2113 StringRef SectionName; 2114 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(), 2115 Dumper->getShndxTable(), SectionName, SectionIndex); 2116 W.printHex("Section", SectionName, SectionIndex); 2117 2118 std::string FullSymbolName = 2119 Dumper->getFullSymbolName(Sym, StrTable, IsDynamic); 2120 W.printNumber("Name", FullSymbolName, Sym->st_name); 2121 } 2122 2123 template <class ELFT> 2124 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr, 2125 const GOTEntry *BeginIt, 2126 const GOTEntry *It, StringRef Purpose) { 2127 DictScope D(W, "Entry"); 2128 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry); 2129 W.printHex("Address", PLTAddr + Offset); 2130 W.printHex("Initial", *It); 2131 W.printString("Purpose", Purpose); 2132 } 2133 2134 template <class ELFT> 2135 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr, 2136 const GOTEntry *BeginIt, 2137 const GOTEntry *It, StringRef StrTable, 2138 const Elf_Sym *Sym) { 2139 DictScope D(W, "Entry"); 2140 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry); 2141 W.printHex("Address", PLTAddr + Offset); 2142 W.printHex("Initial", *It); 2143 W.printHex("Value", Sym->st_value); 2144 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 2145 2146 unsigned SectionIndex = 0; 2147 StringRef SectionName; 2148 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(), 2149 Dumper->getShndxTable(), SectionName, SectionIndex); 2150 W.printHex("Section", SectionName, SectionIndex); 2151 2152 std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true); 2153 W.printNumber("Name", FullSymbolName, Sym->st_name); 2154 } 2155 2156 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() { 2157 if (Obj->getHeader()->e_machine != EM_MIPS) { 2158 W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n"; 2159 return; 2160 } 2161 2162 MipsGOTParser<ELFT> GOTParser(this, Obj, dynamic_table(), W); 2163 GOTParser.parseGOT(); 2164 GOTParser.parsePLT(); 2165 } 2166 2167 static const EnumEntry<unsigned> ElfMipsISAExtType[] = { 2168 {"None", Mips::AFL_EXT_NONE}, 2169 {"Broadcom SB-1", Mips::AFL_EXT_SB1}, 2170 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON}, 2171 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2}, 2172 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP}, 2173 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3}, 2174 {"LSI R4010", Mips::AFL_EXT_4010}, 2175 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E}, 2176 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F}, 2177 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A}, 2178 {"MIPS R4650", Mips::AFL_EXT_4650}, 2179 {"MIPS R5900", Mips::AFL_EXT_5900}, 2180 {"MIPS R10000", Mips::AFL_EXT_10000}, 2181 {"NEC VR4100", Mips::AFL_EXT_4100}, 2182 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111}, 2183 {"NEC VR4120", Mips::AFL_EXT_4120}, 2184 {"NEC VR5400", Mips::AFL_EXT_5400}, 2185 {"NEC VR5500", Mips::AFL_EXT_5500}, 2186 {"RMI Xlr", Mips::AFL_EXT_XLR}, 2187 {"Toshiba R3900", Mips::AFL_EXT_3900} 2188 }; 2189 2190 static const EnumEntry<unsigned> ElfMipsASEFlags[] = { 2191 {"DSP", Mips::AFL_ASE_DSP}, 2192 {"DSPR2", Mips::AFL_ASE_DSPR2}, 2193 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA}, 2194 {"MCU", Mips::AFL_ASE_MCU}, 2195 {"MDMX", Mips::AFL_ASE_MDMX}, 2196 {"MIPS-3D", Mips::AFL_ASE_MIPS3D}, 2197 {"MT", Mips::AFL_ASE_MT}, 2198 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS}, 2199 {"VZ", Mips::AFL_ASE_VIRT}, 2200 {"MSA", Mips::AFL_ASE_MSA}, 2201 {"MIPS16", Mips::AFL_ASE_MIPS16}, 2202 {"microMIPS", Mips::AFL_ASE_MICROMIPS}, 2203 {"XPA", Mips::AFL_ASE_XPA} 2204 }; 2205 2206 static const EnumEntry<unsigned> ElfMipsFpABIType[] = { 2207 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY}, 2208 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE}, 2209 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE}, 2210 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT}, 2211 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)", 2212 Mips::Val_GNU_MIPS_ABI_FP_OLD_64}, 2213 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX}, 2214 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64}, 2215 {"Hard float compat (32-bit CPU, 64-bit FPU)", 2216 Mips::Val_GNU_MIPS_ABI_FP_64A} 2217 }; 2218 2219 static const EnumEntry<unsigned> ElfMipsFlags1[] { 2220 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG}, 2221 }; 2222 2223 static int getMipsRegisterSize(uint8_t Flag) { 2224 switch (Flag) { 2225 case Mips::AFL_REG_NONE: 2226 return 0; 2227 case Mips::AFL_REG_32: 2228 return 32; 2229 case Mips::AFL_REG_64: 2230 return 64; 2231 case Mips::AFL_REG_128: 2232 return 128; 2233 default: 2234 return -1; 2235 } 2236 } 2237 2238 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { 2239 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags"); 2240 if (!Shdr) { 2241 W.startLine() << "There is no .MIPS.abiflags section in the file.\n"; 2242 return; 2243 } 2244 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2245 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) { 2246 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n"; 2247 return; 2248 } 2249 2250 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data()); 2251 2252 raw_ostream &OS = W.getOStream(); 2253 DictScope GS(W, "MIPS ABI Flags"); 2254 2255 W.printNumber("Version", Flags->version); 2256 W.startLine() << "ISA: "; 2257 if (Flags->isa_rev <= 1) 2258 OS << format("MIPS%u", Flags->isa_level); 2259 else 2260 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev); 2261 OS << "\n"; 2262 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType)); 2263 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags)); 2264 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType)); 2265 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size)); 2266 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size)); 2267 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size)); 2268 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1)); 2269 W.printHex("Flags 2", Flags->flags2); 2270 } 2271 2272 template <class ELFT> 2273 static void printMipsReginfoData(ScopedPrinter &W, 2274 const Elf_Mips_RegInfo<ELFT> &Reginfo) { 2275 W.printHex("GP", Reginfo.ri_gp_value); 2276 W.printHex("General Mask", Reginfo.ri_gprmask); 2277 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]); 2278 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]); 2279 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]); 2280 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]); 2281 } 2282 2283 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() { 2284 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo"); 2285 if (!Shdr) { 2286 W.startLine() << "There is no .reginfo section in the file.\n"; 2287 return; 2288 } 2289 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2290 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) { 2291 W.startLine() << "The .reginfo section has a wrong size.\n"; 2292 return; 2293 } 2294 2295 DictScope GS(W, "MIPS RegInfo"); 2296 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data()); 2297 printMipsReginfoData(W, *Reginfo); 2298 } 2299 2300 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() { 2301 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options"); 2302 if (!Shdr) { 2303 W.startLine() << "There is no .MIPS.options section in the file.\n"; 2304 return; 2305 } 2306 2307 DictScope GS(W, "MIPS Options"); 2308 2309 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2310 while (!Sec.empty()) { 2311 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) { 2312 W.startLine() << "The .MIPS.options section has a wrong size.\n"; 2313 return; 2314 } 2315 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data()); 2316 DictScope GS(W, getElfMipsOptionsOdkType(O->kind)); 2317 switch (O->kind) { 2318 case ODK_REGINFO: 2319 printMipsReginfoData(W, O->getRegInfo()); 2320 break; 2321 default: 2322 W.startLine() << "Unsupported MIPS options tag.\n"; 2323 break; 2324 } 2325 Sec = Sec.slice(O->size); 2326 } 2327 } 2328 2329 template <class ELFT> void ELFDumper<ELFT>::printAMDGPUCodeObjectMetadata() { 2330 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".note"); 2331 if (!Shdr) { 2332 W.startLine() << "There is no .note section in the file.\n"; 2333 return; 2334 } 2335 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2336 2337 const uint32_t CodeObjectMetadataNoteType = 10; 2338 for (auto I = reinterpret_cast<const Elf_Word *>(&Sec[0]), 2339 E = I + Sec.size()/4; I != E;) { 2340 uint32_t NameSZ = I[0]; 2341 uint32_t DescSZ = I[1]; 2342 uint32_t Type = I[2]; 2343 I += 3; 2344 2345 StringRef Name; 2346 if (NameSZ) { 2347 Name = StringRef(reinterpret_cast<const char *>(I), NameSZ - 1); 2348 I += alignTo<4>(NameSZ)/4; 2349 } 2350 2351 if (Name == "AMD" && Type == CodeObjectMetadataNoteType) { 2352 StringRef Desc(reinterpret_cast<const char *>(I), DescSZ); 2353 W.printString(Desc); 2354 } 2355 I += alignTo<4>(DescSZ)/4; 2356 } 2357 } 2358 2359 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const { 2360 const Elf_Shdr *StackMapSection = nullptr; 2361 for (const auto &Sec : unwrapOrError(Obj->sections())) { 2362 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2363 if (Name == ".llvm_stackmaps") { 2364 StackMapSection = &Sec; 2365 break; 2366 } 2367 } 2368 2369 if (!StackMapSection) 2370 return; 2371 2372 StringRef StackMapContents; 2373 ArrayRef<uint8_t> StackMapContentsArray = 2374 unwrapOrError(Obj->getSectionContents(StackMapSection)); 2375 2376 prettyPrintStackMap(outs(), StackMapV2Parser<ELFT::TargetEndianness>( 2377 StackMapContentsArray)); 2378 } 2379 2380 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() { 2381 ELFDumperStyle->printGroupSections(Obj); 2382 } 2383 2384 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1, 2385 StringRef Str2) { 2386 OS.PadToColumn(2u); 2387 OS << Str1; 2388 OS.PadToColumn(37u); 2389 OS << Str2 << "\n"; 2390 OS.flush(); 2391 } 2392 2393 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 2394 const Elf_Ehdr *e = Obj->getHeader(); 2395 OS << "ELF Header:\n"; 2396 OS << " Magic: "; 2397 std::string Str; 2398 for (int i = 0; i < ELF::EI_NIDENT; i++) 2399 OS << format(" %02x", static_cast<int>(e->e_ident[i])); 2400 OS << "\n"; 2401 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 2402 printFields(OS, "Class:", Str); 2403 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding)); 2404 printFields(OS, "Data:", Str); 2405 OS.PadToColumn(2u); 2406 OS << "Version:"; 2407 OS.PadToColumn(37u); 2408 OS << to_hexString(e->e_ident[ELF::EI_VERSION]); 2409 if (e->e_version == ELF::EV_CURRENT) 2410 OS << " (current)"; 2411 OS << "\n"; 2412 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI)); 2413 printFields(OS, "OS/ABI:", Str); 2414 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]); 2415 printFields(OS, "ABI Version:", Str); 2416 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType)); 2417 printFields(OS, "Type:", Str); 2418 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType)); 2419 printFields(OS, "Machine:", Str); 2420 Str = "0x" + to_hexString(e->e_version); 2421 printFields(OS, "Version:", Str); 2422 Str = "0x" + to_hexString(e->e_entry); 2423 printFields(OS, "Entry point address:", Str); 2424 Str = to_string(e->e_phoff) + " (bytes into file)"; 2425 printFields(OS, "Start of program headers:", Str); 2426 Str = to_string(e->e_shoff) + " (bytes into file)"; 2427 printFields(OS, "Start of section headers:", Str); 2428 Str = "0x" + to_hexString(e->e_flags); 2429 printFields(OS, "Flags:", Str); 2430 Str = to_string(e->e_ehsize) + " (bytes)"; 2431 printFields(OS, "Size of this header:", Str); 2432 Str = to_string(e->e_phentsize) + " (bytes)"; 2433 printFields(OS, "Size of program headers:", Str); 2434 Str = to_string(e->e_phnum); 2435 printFields(OS, "Number of program headers:", Str); 2436 Str = to_string(e->e_shentsize) + " (bytes)"; 2437 printFields(OS, "Size of section headers:", Str); 2438 Str = to_string(e->e_shnum); 2439 printFields(OS, "Number of section headers:", Str); 2440 Str = to_string(e->e_shstrndx); 2441 printFields(OS, "Section header string table index:", Str); 2442 } 2443 2444 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) { 2445 uint32_t SectionIndex = 0; 2446 bool HasGroups = false; 2447 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2448 if (Sec.sh_type == ELF::SHT_GROUP) { 2449 HasGroups = true; 2450 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2451 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 2452 const Elf_Sym *Signature = 2453 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 2454 ArrayRef<Elf_Word> Data = unwrapOrError( 2455 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 2456 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2457 OS << "\n" << getGroupType(Data[0]) << " group section [" 2458 << format_decimal(SectionIndex, 5) << "] `" << Name << "' [" 2459 << StrTable.data() + Signature->st_name << "] contains " 2460 << (Data.size() - 1) << " sections:\n" 2461 << " [Index] Name\n"; 2462 for (auto &Ndx : Data.slice(1)) { 2463 auto Sec = unwrapOrError(Obj->getSection(Ndx)); 2464 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 2465 OS << " [" << format_decimal(Ndx, 5) << "] " << Name 2466 << "\n"; 2467 } 2468 } 2469 ++SectionIndex; 2470 } 2471 if (!HasGroups) 2472 OS << "There are no section groups in this file.\n"; 2473 } 2474 2475 template <class ELFT> 2476 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 2477 const Elf_Rela &R, bool IsRela) { 2478 std::string Offset, Info, Addend, Value; 2479 SmallString<32> RelocName; 2480 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 2481 StringRef TargetName; 2482 const Elf_Sym *Sym = nullptr; 2483 unsigned Width = ELFT::Is64Bits ? 16 : 8; 2484 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 2485 2486 // First two fields are bit width dependent. The rest of them are after are 2487 // fixed width. 2488 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 2489 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 2490 Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab)); 2491 if (Sym && Sym->getType() == ELF::STT_SECTION) { 2492 const Elf_Shdr *Sec = unwrapOrError( 2493 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 2494 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 2495 } else if (Sym) { 2496 TargetName = unwrapOrError(Sym->getName(StrTable)); 2497 } 2498 2499 if (Sym && IsRela) { 2500 if (R.r_addend < 0) 2501 Addend = " - "; 2502 else 2503 Addend = " + "; 2504 } 2505 2506 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 2507 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 2508 2509 int64_t RelAddend = R.r_addend; 2510 if (IsRela) 2511 Addend += to_hexString(std::abs(RelAddend), false); 2512 2513 if (Sym) 2514 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 2515 2516 Fields[0].Str = Offset; 2517 Fields[1].Str = Info; 2518 Fields[2].Str = RelocName; 2519 Fields[3].Str = Value; 2520 Fields[4].Str = TargetName; 2521 for (auto &field : Fields) 2522 printField(field); 2523 OS << Addend; 2524 OS << "\n"; 2525 } 2526 2527 static inline void printRelocHeader(raw_ostream &OS, bool Is64, bool IsRela) { 2528 if (Is64) 2529 OS << " Offset Info Type" 2530 << " Symbol's Value Symbol's Name"; 2531 else 2532 OS << " Offset Info Type Sym. Value " 2533 << "Symbol's Name"; 2534 if (IsRela) 2535 OS << (IsRela ? " + Addend" : ""); 2536 OS << "\n"; 2537 } 2538 2539 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) { 2540 bool HasRelocSections = false; 2541 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2542 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA) 2543 continue; 2544 HasRelocSections = true; 2545 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2546 unsigned Entries = Sec.getEntityCount(); 2547 uintX_t Offset = Sec.sh_offset; 2548 OS << "\nRelocation section '" << Name << "' at offset 0x" 2549 << to_hexString(Offset, false) << " contains " << Entries 2550 << " entries:\n"; 2551 printRelocHeader(OS, ELFT::Is64Bits, (Sec.sh_type == ELF::SHT_RELA)); 2552 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2553 if (Sec.sh_type == ELF::SHT_REL) { 2554 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) { 2555 Elf_Rela Rela; 2556 Rela.r_offset = R.r_offset; 2557 Rela.r_info = R.r_info; 2558 Rela.r_addend = 0; 2559 printRelocation(Obj, SymTab, Rela, false); 2560 } 2561 } else { 2562 for (const auto &R : unwrapOrError(Obj->relas(&Sec))) 2563 printRelocation(Obj, SymTab, R, true); 2564 } 2565 } 2566 if (!HasRelocSections) 2567 OS << "\nThere are no relocations in this file.\n"; 2568 } 2569 2570 std::string getSectionTypeString(unsigned Arch, unsigned Type) { 2571 using namespace ELF; 2572 2573 switch (Arch) { 2574 case EM_ARM: 2575 switch (Type) { 2576 case SHT_ARM_EXIDX: 2577 return "ARM_EXIDX"; 2578 case SHT_ARM_PREEMPTMAP: 2579 return "ARM_PREEMPTMAP"; 2580 case SHT_ARM_ATTRIBUTES: 2581 return "ARM_ATTRIBUTES"; 2582 case SHT_ARM_DEBUGOVERLAY: 2583 return "ARM_DEBUGOVERLAY"; 2584 case SHT_ARM_OVERLAYSECTION: 2585 return "ARM_OVERLAYSECTION"; 2586 } 2587 case EM_X86_64: 2588 switch (Type) { 2589 case SHT_X86_64_UNWIND: 2590 return "X86_64_UNWIND"; 2591 } 2592 case EM_MIPS: 2593 case EM_MIPS_RS3_LE: 2594 switch (Type) { 2595 case SHT_MIPS_REGINFO: 2596 return "MIPS_REGINFO"; 2597 case SHT_MIPS_OPTIONS: 2598 return "MIPS_OPTIONS"; 2599 case SHT_MIPS_ABIFLAGS: 2600 return "MIPS_ABIFLAGS"; 2601 case SHT_MIPS_DWARF: 2602 return "SHT_MIPS_DWARF"; 2603 } 2604 } 2605 switch (Type) { 2606 case SHT_NULL: 2607 return "NULL"; 2608 case SHT_PROGBITS: 2609 return "PROGBITS"; 2610 case SHT_SYMTAB: 2611 return "SYMTAB"; 2612 case SHT_STRTAB: 2613 return "STRTAB"; 2614 case SHT_RELA: 2615 return "RELA"; 2616 case SHT_HASH: 2617 return "HASH"; 2618 case SHT_DYNAMIC: 2619 return "DYNAMIC"; 2620 case SHT_NOTE: 2621 return "NOTE"; 2622 case SHT_NOBITS: 2623 return "NOBITS"; 2624 case SHT_REL: 2625 return "REL"; 2626 case SHT_SHLIB: 2627 return "SHLIB"; 2628 case SHT_DYNSYM: 2629 return "DYNSYM"; 2630 case SHT_INIT_ARRAY: 2631 return "INIT_ARRAY"; 2632 case SHT_FINI_ARRAY: 2633 return "FINI_ARRAY"; 2634 case SHT_PREINIT_ARRAY: 2635 return "PREINIT_ARRAY"; 2636 case SHT_GROUP: 2637 return "GROUP"; 2638 case SHT_SYMTAB_SHNDX: 2639 return "SYMTAB SECTION INDICES"; 2640 case SHT_LLVM_ODRTAB: 2641 return "LLVM_ODRTAB"; 2642 // FIXME: Parse processor specific GNU attributes 2643 case SHT_GNU_ATTRIBUTES: 2644 return "ATTRIBUTES"; 2645 case SHT_GNU_HASH: 2646 return "GNU_HASH"; 2647 case SHT_GNU_verdef: 2648 return "VERDEF"; 2649 case SHT_GNU_verneed: 2650 return "VERNEED"; 2651 case SHT_GNU_versym: 2652 return "VERSYM"; 2653 default: 2654 return ""; 2655 } 2656 return ""; 2657 } 2658 2659 template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) { 2660 size_t SectionIndex = 0; 2661 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize, 2662 Alignment; 2663 unsigned Bias; 2664 unsigned Width; 2665 2666 if (ELFT::Is64Bits) { 2667 Bias = 0; 2668 Width = 16; 2669 } else { 2670 Bias = 8; 2671 Width = 8; 2672 } 2673 OS << "There are " << to_string(Obj->getHeader()->e_shnum) 2674 << " section headers, starting at offset " 2675 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n"; 2676 OS << "Section Headers:\n"; 2677 Field Fields[11] = {{"[Nr]", 2}, 2678 {"Name", 7}, 2679 {"Type", 25}, 2680 {"Address", 41}, 2681 {"Off", 58 - Bias}, 2682 {"Size", 65 - Bias}, 2683 {"ES", 72 - Bias}, 2684 {"Flg", 75 - Bias}, 2685 {"Lk", 79 - Bias}, 2686 {"Inf", 82 - Bias}, 2687 {"Al", 86 - Bias}}; 2688 for (auto &f : Fields) 2689 printField(f); 2690 OS << "\n"; 2691 2692 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2693 Number = to_string(SectionIndex); 2694 Fields[0].Str = Number; 2695 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec)); 2696 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type); 2697 Fields[2].Str = Type; 2698 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width)); 2699 Fields[3].Str = Address; 2700 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6)); 2701 Fields[4].Str = Offset; 2702 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6)); 2703 Fields[5].Str = Size; 2704 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2)); 2705 Fields[6].Str = EntrySize; 2706 Flags = getGNUFlags(Sec.sh_flags); 2707 Fields[7].Str = Flags; 2708 Link = to_string(Sec.sh_link); 2709 Fields[8].Str = Link; 2710 Info = to_string(Sec.sh_info); 2711 Fields[9].Str = Info; 2712 Alignment = to_string(Sec.sh_addralign); 2713 Fields[10].Str = Alignment; 2714 OS.PadToColumn(Fields[0].Column); 2715 OS << "[" << right_justify(Fields[0].Str, 2) << "]"; 2716 for (int i = 1; i < 7; i++) 2717 printField(Fields[i]); 2718 OS.PadToColumn(Fields[7].Column); 2719 OS << right_justify(Fields[7].Str, 3); 2720 OS.PadToColumn(Fields[8].Column); 2721 OS << right_justify(Fields[8].Str, 2); 2722 OS.PadToColumn(Fields[9].Column); 2723 OS << right_justify(Fields[9].Str, 3); 2724 OS.PadToColumn(Fields[10].Column); 2725 OS << right_justify(Fields[10].Str, 2); 2726 OS << "\n"; 2727 ++SectionIndex; 2728 } 2729 OS << "Key to Flags:\n" 2730 << " W (write), A (alloc), X (execute), M (merge), S (strings), l " 2731 "(large)\n" 2732 << " I (info), L (link order), G (group), T (TLS), E (exclude),\ 2733 x (unknown)\n" 2734 << " O (extra OS processing required) o (OS specific),\ 2735 p (processor specific)\n"; 2736 } 2737 2738 template <class ELFT> 2739 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name, 2740 size_t Entries) { 2741 if (!Name.empty()) 2742 OS << "\nSymbol table '" << Name << "' contains " << Entries 2743 << " entries:\n"; 2744 else 2745 OS << "\n Symbol table for image:\n"; 2746 2747 if (ELFT::Is64Bits) 2748 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2749 else 2750 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2751 } 2752 2753 template <class ELFT> 2754 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj, 2755 const Elf_Sym *Symbol, 2756 const Elf_Sym *FirstSym) { 2757 unsigned SectionIndex = Symbol->st_shndx; 2758 switch (SectionIndex) { 2759 case ELF::SHN_UNDEF: 2760 return "UND"; 2761 case ELF::SHN_ABS: 2762 return "ABS"; 2763 case ELF::SHN_COMMON: 2764 return "COM"; 2765 case ELF::SHN_XINDEX: 2766 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 2767 Symbol, FirstSym, this->dumper()->getShndxTable())); 2768 LLVM_FALLTHROUGH; 2769 default: 2770 // Find if: 2771 // Processor specific 2772 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC) 2773 return std::string("PRC[0x") + 2774 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2775 // OS specific 2776 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS) 2777 return std::string("OS[0x") + 2778 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2779 // Architecture reserved: 2780 if (SectionIndex >= ELF::SHN_LORESERVE && 2781 SectionIndex <= ELF::SHN_HIRESERVE) 2782 return std::string("RSV[0x") + 2783 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2784 // A normal section with an index 2785 return to_string(format_decimal(SectionIndex, 3)); 2786 } 2787 } 2788 2789 template <class ELFT> 2790 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 2791 const Elf_Sym *FirstSym, StringRef StrTable, 2792 bool IsDynamic) { 2793 static int Idx = 0; 2794 static bool Dynamic = true; 2795 size_t Width; 2796 2797 // If this function was called with a different value from IsDynamic 2798 // from last call, happens when we move from dynamic to static symbol 2799 // table, "Num" field should be reset. 2800 if (!Dynamic != !IsDynamic) { 2801 Idx = 0; 2802 Dynamic = false; 2803 } 2804 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section; 2805 unsigned Bias = 0; 2806 if (ELFT::Is64Bits) { 2807 Bias = 8; 2808 Width = 16; 2809 } else { 2810 Bias = 0; 2811 Width = 8; 2812 } 2813 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias, 2814 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias}; 2815 Num = to_string(format_decimal(Idx++, 6)) + ":"; 2816 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 2817 Size = to_string(format_decimal(Symbol->st_size, 5)); 2818 unsigned char SymbolType = Symbol->getType(); 2819 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 2820 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 2821 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 2822 else 2823 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 2824 unsigned Vis = Symbol->getVisibility(); 2825 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 2826 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 2827 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 2828 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 2829 Fields[0].Str = Num; 2830 Fields[1].Str = Value; 2831 Fields[2].Str = Size; 2832 Fields[3].Str = Type; 2833 Fields[4].Str = Binding; 2834 Fields[5].Str = Visibility; 2835 Fields[6].Str = Section; 2836 Fields[7].Str = Name; 2837 for (auto &Entry : Fields) 2838 printField(Entry); 2839 OS << "\n"; 2840 } 2841 template <class ELFT> 2842 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, 2843 uint32_t Sym, StringRef StrTable, 2844 uint32_t Bucket) { 2845 std::string Num, Buc, Name, Value, Size, Binding, Type, Visibility, Section; 2846 unsigned Width, Bias = 0; 2847 if (ELFT::Is64Bits) { 2848 Bias = 8; 2849 Width = 16; 2850 } else { 2851 Bias = 0; 2852 Width = 8; 2853 } 2854 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias, 2855 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias}; 2856 Num = to_string(format_decimal(Sym, 5)); 2857 Buc = to_string(format_decimal(Bucket, 3)) + ":"; 2858 2859 const auto Symbol = FirstSym + Sym; 2860 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 2861 Size = to_string(format_decimal(Symbol->st_size, 5)); 2862 unsigned char SymbolType = Symbol->getType(); 2863 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 2864 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 2865 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 2866 else 2867 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 2868 unsigned Vis = Symbol->getVisibility(); 2869 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 2870 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 2871 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 2872 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, true); 2873 Fields[0].Str = Num; 2874 Fields[1].Str = Buc; 2875 Fields[2].Str = Value; 2876 Fields[3].Str = Size; 2877 Fields[4].Str = Type; 2878 Fields[5].Str = Binding; 2879 Fields[6].Str = Visibility; 2880 Fields[7].Str = Section; 2881 Fields[8].Str = Name; 2882 for (auto &Entry : Fields) 2883 printField(Entry); 2884 OS << "\n"; 2885 } 2886 2887 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) { 2888 if (opts::DynamicSymbols) 2889 return; 2890 this->dumper()->printSymbolsHelper(true); 2891 this->dumper()->printSymbolsHelper(false); 2892 } 2893 2894 template <class ELFT> 2895 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 2896 if (this->dumper()->getDynamicStringTable().empty()) 2897 return; 2898 auto StringTable = this->dumper()->getDynamicStringTable(); 2899 auto DynSyms = this->dumper()->dynamic_symbols(); 2900 auto GnuHash = this->dumper()->getGnuHashTable(); 2901 auto SysVHash = this->dumper()->getHashTable(); 2902 2903 // If no hash or .gnu.hash found, try using symbol table 2904 if (GnuHash == nullptr && SysVHash == nullptr) 2905 this->dumper()->printSymbolsHelper(true); 2906 2907 // Try printing .hash 2908 if (this->dumper()->getHashTable()) { 2909 OS << "\n Symbol table of .hash for image:\n"; 2910 if (ELFT::Is64Bits) 2911 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2912 else 2913 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2914 OS << "\n"; 2915 2916 uint32_t NBuckets = SysVHash->nbucket; 2917 uint32_t NChains = SysVHash->nchain; 2918 auto Buckets = SysVHash->buckets(); 2919 auto Chains = SysVHash->chains(); 2920 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 2921 if (Buckets[Buc] == ELF::STN_UNDEF) 2922 continue; 2923 for (uint32_t Ch = Buckets[Buc]; Ch < NChains; Ch = Chains[Ch]) { 2924 if (Ch == ELF::STN_UNDEF) 2925 break; 2926 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc); 2927 } 2928 } 2929 } 2930 2931 // Try printing .gnu.hash 2932 if (GnuHash) { 2933 OS << "\n Symbol table of .gnu.hash for image:\n"; 2934 if (ELFT::Is64Bits) 2935 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2936 else 2937 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2938 OS << "\n"; 2939 uint32_t NBuckets = GnuHash->nbuckets; 2940 auto Buckets = GnuHash->buckets(); 2941 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 2942 if (Buckets[Buc] == ELF::STN_UNDEF) 2943 continue; 2944 uint32_t Index = Buckets[Buc]; 2945 uint32_t GnuHashable = Index - GnuHash->symndx; 2946 // Print whole chain 2947 while (true) { 2948 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc); 2949 // Chain ends at symbol with stopper bit 2950 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1) 2951 break; 2952 } 2953 } 2954 } 2955 } 2956 2957 static inline std::string printPhdrFlags(unsigned Flag) { 2958 std::string Str; 2959 Str = (Flag & PF_R) ? "R" : " "; 2960 Str += (Flag & PF_W) ? "W" : " "; 2961 Str += (Flag & PF_X) ? "E" : " "; 2962 return Str; 2963 } 2964 2965 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO 2966 // PT_TLS must only have SHF_TLS sections 2967 template <class ELFT> 2968 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr, 2969 const Elf_Shdr &Sec) { 2970 return (((Sec.sh_flags & ELF::SHF_TLS) && 2971 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) || 2972 (Phdr.p_type == ELF::PT_GNU_RELRO))) || 2973 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS)); 2974 } 2975 2976 // Non-SHT_NOBITS must have its offset inside the segment 2977 // Only non-zero section can be at end of segment 2978 template <class ELFT> 2979 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 2980 if (Sec.sh_type == ELF::SHT_NOBITS) 2981 return true; 2982 bool IsSpecial = 2983 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 2984 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 2985 auto SectionSize = 2986 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 2987 if (Sec.sh_offset >= Phdr.p_offset) 2988 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset) 2989 /*only non-zero sized sections at end*/ && 2990 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz)); 2991 return false; 2992 } 2993 2994 // SHF_ALLOC must have VMA inside segment 2995 // Only non-zero section can be at end of segment 2996 template <class ELFT> 2997 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 2998 if (!(Sec.sh_flags & ELF::SHF_ALLOC)) 2999 return true; 3000 bool IsSpecial = 3001 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3002 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3003 auto SectionSize = 3004 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3005 if (Sec.sh_addr >= Phdr.p_vaddr) 3006 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) && 3007 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz)); 3008 return false; 3009 } 3010 3011 // No section with zero size must be at start or end of PT_DYNAMIC 3012 template <class ELFT> 3013 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3014 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0) 3015 return true; 3016 // Is section within the phdr both based on offset and VMA ? 3017 return ((Sec.sh_type == ELF::SHT_NOBITS) || 3018 (Sec.sh_offset > Phdr.p_offset && 3019 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) && 3020 (!(Sec.sh_flags & ELF::SHF_ALLOC) || 3021 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz)); 3022 } 3023 3024 template <class ELFT> 3025 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3026 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3027 unsigned Width = ELFT::Is64Bits ? 18 : 10; 3028 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7; 3029 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align; 3030 3031 const Elf_Ehdr *Header = Obj->getHeader(); 3032 Field Fields[8] = {2, 17, 26, 37 + Bias, 3033 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias}; 3034 OS << "\nElf file type is " 3035 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n" 3036 << "Entry point " << format_hex(Header->e_entry, 3) << "\n" 3037 << "There are " << Header->e_phnum << " program headers," 3038 << " starting at offset " << Header->e_phoff << "\n\n" 3039 << "Program Headers:\n"; 3040 if (ELFT::Is64Bits) 3041 OS << " Type Offset VirtAddr PhysAddr " 3042 << " FileSiz MemSiz Flg Align\n"; 3043 else 3044 OS << " Type Offset VirtAddr PhysAddr FileSiz " 3045 << "MemSiz Flg Align\n"; 3046 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) { 3047 Type = getElfPtType(Header->e_machine, Phdr.p_type); 3048 Offset = to_string(format_hex(Phdr.p_offset, 8)); 3049 VMA = to_string(format_hex(Phdr.p_vaddr, Width)); 3050 LMA = to_string(format_hex(Phdr.p_paddr, Width)); 3051 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth)); 3052 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth)); 3053 Flag = printPhdrFlags(Phdr.p_flags); 3054 Align = to_string(format_hex(Phdr.p_align, 1)); 3055 Fields[0].Str = Type; 3056 Fields[1].Str = Offset; 3057 Fields[2].Str = VMA; 3058 Fields[3].Str = LMA; 3059 Fields[4].Str = FileSz; 3060 Fields[5].Str = MemSz; 3061 Fields[6].Str = Flag; 3062 Fields[7].Str = Align; 3063 for (auto Field : Fields) 3064 printField(Field); 3065 if (Phdr.p_type == ELF::PT_INTERP) { 3066 OS << "\n [Requesting program interpreter: "; 3067 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]"; 3068 } 3069 OS << "\n"; 3070 } 3071 OS << "\n Section to Segment mapping:\n Segment Sections...\n"; 3072 int Phnum = 0; 3073 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3074 std::string Sections; 3075 OS << format(" %2.2d ", Phnum++); 3076 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3077 // Check if each section is in a segment and then print mapping. 3078 // readelf additionally makes sure it does not print zero sized sections 3079 // at end of segments and for PT_DYNAMIC both start and end of section 3080 // .tbss must only be shown in PT_TLS section. 3081 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) && 3082 ((Sec.sh_flags & ELF::SHF_TLS) != 0) && 3083 Phdr.p_type != ELF::PT_TLS; 3084 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) && 3085 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) && 3086 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) 3087 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " "; 3088 } 3089 OS << Sections << "\n"; 3090 OS.flush(); 3091 } 3092 } 3093 3094 template <class ELFT> 3095 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R, 3096 bool IsRela) { 3097 SmallString<32> RelocName; 3098 StringRef SymbolName; 3099 unsigned Width = ELFT::Is64Bits ? 16 : 8; 3100 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3101 // First two fields are bit width dependent. The rest of them are after are 3102 // fixed width. 3103 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 3104 3105 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL()); 3106 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3107 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 3108 SymbolName = 3109 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 3110 std::string Addend, Info, Offset, Value; 3111 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 3112 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 3113 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 3114 int64_t RelAddend = R.r_addend; 3115 if (!SymbolName.empty() && IsRela) { 3116 if (R.r_addend < 0) 3117 Addend = " - "; 3118 else 3119 Addend = " + "; 3120 } 3121 3122 if (SymbolName.empty() && Sym->getValue() == 0) 3123 Value = ""; 3124 3125 if (IsRela) 3126 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1)); 3127 3128 3129 Fields[0].Str = Offset; 3130 Fields[1].Str = Info; 3131 Fields[2].Str = RelocName.c_str(); 3132 Fields[3].Str = Value; 3133 Fields[4].Str = SymbolName; 3134 for (auto &Field : Fields) 3135 printField(Field); 3136 OS << Addend; 3137 OS << "\n"; 3138 } 3139 3140 template <class ELFT> 3141 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3142 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3143 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3144 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3145 if (DynRelaRegion.Size > 0) { 3146 OS << "\n'RELA' relocation section at offset " 3147 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) - 3148 Obj->base(), 3149 1) << " contains " << DynRelaRegion.Size << " bytes:\n"; 3150 printRelocHeader(OS, ELFT::Is64Bits, true); 3151 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3152 printDynamicRelocation(Obj, Rela, true); 3153 } 3154 if (DynRelRegion.Size > 0) { 3155 OS << "\n'REL' relocation section at offset " 3156 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) - 3157 Obj->base(), 3158 1) << " contains " << DynRelRegion.Size << " bytes:\n"; 3159 printRelocHeader(OS, ELFT::Is64Bits, false); 3160 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3161 Elf_Rela Rela; 3162 Rela.r_offset = Rel.r_offset; 3163 Rela.r_info = Rel.r_info; 3164 Rela.r_addend = 0; 3165 printDynamicRelocation(Obj, Rela, false); 3166 } 3167 } 3168 if (DynPLTRelRegion.Size) { 3169 OS << "\n'PLT' relocation section at offset " 3170 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) - 3171 Obj->base(), 3172 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n"; 3173 } 3174 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) { 3175 printRelocHeader(OS, ELFT::Is64Bits, true); 3176 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3177 printDynamicRelocation(Obj, Rela, true); 3178 } else { 3179 printRelocHeader(OS, ELFT::Is64Bits, false); 3180 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3181 Elf_Rela Rela; 3182 Rela.r_offset = Rel.r_offset; 3183 Rela.r_info = Rel.r_info; 3184 Rela.r_addend = 0; 3185 printDynamicRelocation(Obj, Rela, false); 3186 } 3187 } 3188 } 3189 3190 // Hash histogram shows statistics of how efficient the hash was for the 3191 // dynamic symbol table. The table shows number of hash buckets for different 3192 // lengths of chains as absolute number and percentage of the total buckets. 3193 // Additionally cumulative coverage of symbols for each set of buckets. 3194 template <class ELFT> 3195 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3196 3197 const Elf_Hash *HashTable = this->dumper()->getHashTable(); 3198 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable(); 3199 3200 // Print histogram for .hash section 3201 if (HashTable) { 3202 size_t NBucket = HashTable->nbucket; 3203 size_t NChain = HashTable->nchain; 3204 ArrayRef<Elf_Word> Buckets = HashTable->buckets(); 3205 ArrayRef<Elf_Word> Chains = HashTable->chains(); 3206 size_t TotalSyms = 0; 3207 // If hash table is correct, we have at least chains with 0 length 3208 size_t MaxChain = 1; 3209 size_t CumulativeNonZero = 0; 3210 3211 if (NChain == 0 || NBucket == 0) 3212 return; 3213 3214 std::vector<size_t> ChainLen(NBucket, 0); 3215 // Go over all buckets and and note chain lengths of each bucket (total 3216 // unique chain lengths). 3217 for (size_t B = 0; B < NBucket; B++) { 3218 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C]) 3219 if (MaxChain <= ++ChainLen[B]) 3220 MaxChain++; 3221 TotalSyms += ChainLen[B]; 3222 } 3223 3224 if (!TotalSyms) 3225 return; 3226 3227 std::vector<size_t> Count(MaxChain, 0) ; 3228 // Count how long is the chain for each bucket 3229 for (size_t B = 0; B < NBucket; B++) 3230 ++Count[ChainLen[B]]; 3231 // Print Number of buckets with each chain lengths and their cumulative 3232 // coverage of the symbols 3233 OS << "Histogram for bucket list length (total of " << NBucket 3234 << " buckets)\n" 3235 << " Length Number % of total Coverage\n"; 3236 for (size_t I = 0; I < MaxChain; I++) { 3237 CumulativeNonZero += Count[I] * I; 3238 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3239 (Count[I] * 100.0) / NBucket, 3240 (CumulativeNonZero * 100.0) / TotalSyms); 3241 } 3242 } 3243 3244 // Print histogram for .gnu.hash section 3245 if (GnuHashTable) { 3246 size_t NBucket = GnuHashTable->nbuckets; 3247 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets(); 3248 unsigned NumSyms = this->dumper()->dynamic_symbols().size(); 3249 if (!NumSyms) 3250 return; 3251 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms); 3252 size_t Symndx = GnuHashTable->symndx; 3253 size_t TotalSyms = 0; 3254 size_t MaxChain = 1; 3255 size_t CumulativeNonZero = 0; 3256 3257 if (Chains.empty() || NBucket == 0) 3258 return; 3259 3260 std::vector<size_t> ChainLen(NBucket, 0); 3261 3262 for (size_t B = 0; B < NBucket; B++) { 3263 if (!Buckets[B]) 3264 continue; 3265 size_t Len = 1; 3266 for (size_t C = Buckets[B] - Symndx; 3267 C < Chains.size() && (Chains[C] & 1) == 0; C++) 3268 if (MaxChain < ++Len) 3269 MaxChain++; 3270 ChainLen[B] = Len; 3271 TotalSyms += Len; 3272 } 3273 MaxChain++; 3274 3275 if (!TotalSyms) 3276 return; 3277 3278 std::vector<size_t> Count(MaxChain, 0) ; 3279 for (size_t B = 0; B < NBucket; B++) 3280 ++Count[ChainLen[B]]; 3281 // Print Number of buckets with each chain lengths and their cumulative 3282 // coverage of the symbols 3283 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket 3284 << " buckets)\n" 3285 << " Length Number % of total Coverage\n"; 3286 for (size_t I = 0; I <MaxChain; I++) { 3287 CumulativeNonZero += Count[I] * I; 3288 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3289 (Count[I] * 100.0) / NBucket, 3290 (CumulativeNonZero * 100.0) / TotalSyms); 3291 } 3292 } 3293 } 3294 3295 static std::string getGNUNoteTypeName(const uint32_t NT) { 3296 static const struct { 3297 uint32_t ID; 3298 const char *Name; 3299 } Notes[] = { 3300 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"}, 3301 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"}, 3302 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"}, 3303 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"}, 3304 }; 3305 3306 for (const auto &Note : Notes) 3307 if (Note.ID == NT) 3308 return std::string(Note.Name); 3309 3310 std::string string; 3311 raw_string_ostream OS(string); 3312 OS << format("Unknown note type (0x%08x)", NT); 3313 return string; 3314 } 3315 3316 static std::string getFreeBSDNoteTypeName(const uint32_t NT) { 3317 static const struct { 3318 uint32_t ID; 3319 const char *Name; 3320 } Notes[] = { 3321 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"}, 3322 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"}, 3323 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"}, 3324 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"}, 3325 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"}, 3326 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"}, 3327 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"}, 3328 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"}, 3329 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS, 3330 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"}, 3331 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"}, 3332 }; 3333 3334 for (const auto &Note : Notes) 3335 if (Note.ID == NT) 3336 return std::string(Note.Name); 3337 3338 std::string string; 3339 raw_string_ostream OS(string); 3340 OS << format("Unknown note type (0x%08x)", NT); 3341 return string; 3342 } 3343 3344 template <typename ELFT> 3345 static void printGNUNote(raw_ostream &OS, uint32_t NoteType, 3346 ArrayRef<typename ELFFile<ELFT>::Elf_Word> Words, 3347 size_t Size) { 3348 switch (NoteType) { 3349 default: 3350 return; 3351 case ELF::NT_GNU_ABI_TAG: { 3352 static const char *OSNames[] = { 3353 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl", 3354 }; 3355 3356 StringRef OSName = "Unknown"; 3357 if (Words[0] < array_lengthof(OSNames)) 3358 OSName = OSNames[Words[0]]; 3359 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3]; 3360 3361 if (Words.size() < 4) 3362 OS << " <corrupt GNU_ABI_TAG>"; 3363 else 3364 OS << " OS: " << OSName << ", ABI: " << Major << "." << Minor << "." 3365 << Patch; 3366 break; 3367 } 3368 case ELF::NT_GNU_BUILD_ID: { 3369 OS << " Build ID: "; 3370 ArrayRef<uint8_t> ID(reinterpret_cast<const uint8_t *>(Words.data()), Size); 3371 for (const auto &B : ID) 3372 OS << format_hex_no_prefix(B, 2); 3373 break; 3374 } 3375 case ELF::NT_GNU_GOLD_VERSION: 3376 OS << " Version: " 3377 << StringRef(reinterpret_cast<const char *>(Words.data()), Size); 3378 break; 3379 } 3380 3381 OS << '\n'; 3382 } 3383 3384 template <class ELFT> 3385 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3386 const Elf_Ehdr *e = Obj->getHeader(); 3387 bool IsCore = e->e_type == ELF::ET_CORE; 3388 3389 auto process = [&](const typename ELFFile<ELFT>::Elf_Off Offset, 3390 const typename ELFFile<ELFT>::Elf_Addr Size) { 3391 if (Size <= 0) 3392 return; 3393 3394 const auto *P = static_cast<const uint8_t *>(Obj->base() + Offset); 3395 const auto *E = P + Size; 3396 3397 OS << "Displaying notes found at file offset " << format_hex(Offset, 10) 3398 << " with length " << format_hex(Size, 10) << ":\n" 3399 << " Owner Data size\tDescription\n"; 3400 3401 while (P < E) { 3402 const Elf_Word *Words = reinterpret_cast<const Elf_Word *>(&P[0]); 3403 3404 uint32_t NameSize = Words[0]; 3405 uint32_t DescriptorSize = Words[1]; 3406 uint32_t Type = Words[2]; 3407 3408 ArrayRef<Elf_Word> Descriptor(&Words[3 + (alignTo<4>(NameSize) / 4)], 3409 alignTo<4>(DescriptorSize) / 4); 3410 3411 StringRef Name; 3412 if (NameSize) 3413 Name = 3414 StringRef(reinterpret_cast<const char *>(&Words[3]), NameSize - 1); 3415 3416 OS << " " << Name << std::string(22 - NameSize, ' ') 3417 << format_hex(DescriptorSize, 10) << '\t'; 3418 3419 if (Name == "GNU") { 3420 OS << getGNUNoteTypeName(Type) << '\n'; 3421 printGNUNote<ELFT>(OS, Type, Descriptor, DescriptorSize); 3422 } else if (Name == "FreeBSD") { 3423 OS << getFreeBSDNoteTypeName(Type) << '\n'; 3424 } else { 3425 OS << "Unknown note type: (" << format_hex(Type, 10) << ')'; 3426 } 3427 OS << '\n'; 3428 3429 P = P + 3 * sizeof(Elf_Word) + alignTo<4>(NameSize) + 3430 alignTo<4>(DescriptorSize); 3431 } 3432 }; 3433 3434 if (IsCore) { 3435 for (const auto &P : unwrapOrError(Obj->program_headers())) 3436 if (P.p_type == PT_NOTE) 3437 process(P.p_offset, P.p_filesz); 3438 } else { 3439 for (const auto &S : unwrapOrError(Obj->sections())) 3440 if (S.sh_type == SHT_NOTE) 3441 process(S.sh_offset, S.sh_size); 3442 } 3443 } 3444 3445 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 3446 const Elf_Ehdr *e = Obj->getHeader(); 3447 { 3448 DictScope D(W, "ElfHeader"); 3449 { 3450 DictScope D(W, "Ident"); 3451 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4)); 3452 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 3453 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA], 3454 makeArrayRef(ElfDataEncoding)); 3455 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]); 3456 3457 // Handle architecture specific OS/ABI values. 3458 if (e->e_machine == ELF::EM_AMDGPU && 3459 e->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA) 3460 W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA); 3461 else 3462 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI], 3463 makeArrayRef(ElfOSABI)); 3464 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]); 3465 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD)); 3466 } 3467 3468 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType)); 3469 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType)); 3470 W.printNumber("Version", e->e_version); 3471 W.printHex("Entry", e->e_entry); 3472 W.printHex("ProgramHeaderOffset", e->e_phoff); 3473 W.printHex("SectionHeaderOffset", e->e_shoff); 3474 if (e->e_machine == EM_MIPS) 3475 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags), 3476 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 3477 unsigned(ELF::EF_MIPS_MACH)); 3478 else 3479 W.printFlags("Flags", e->e_flags); 3480 W.printNumber("HeaderSize", e->e_ehsize); 3481 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize); 3482 W.printNumber("ProgramHeaderCount", e->e_phnum); 3483 W.printNumber("SectionHeaderEntrySize", e->e_shentsize); 3484 W.printNumber("SectionHeaderCount", e->e_shnum); 3485 W.printNumber("StringTableSectionIndex", e->e_shstrndx); 3486 } 3487 } 3488 3489 template <class ELFT> 3490 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) { 3491 DictScope Lists(W, "Groups"); 3492 uint32_t SectionIndex = 0; 3493 bool HasGroups = false; 3494 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3495 if (Sec.sh_type == ELF::SHT_GROUP) { 3496 HasGroups = true; 3497 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 3498 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 3499 const Elf_Sym *Sym = 3500 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 3501 auto Data = unwrapOrError( 3502 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 3503 DictScope D(W, "Group"); 3504 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 3505 W.printNumber("Name", Name, Sec.sh_name); 3506 W.printNumber("Index", SectionIndex); 3507 W.printHex("Type", getGroupType(Data[0]), Data[0]); 3508 W.startLine() << "Signature: " << StrTable.data() + Sym->st_name << "\n"; 3509 { 3510 ListScope L(W, "Section(s) in group"); 3511 size_t Member = 1; 3512 while (Member < Data.size()) { 3513 auto Sec = unwrapOrError(Obj->getSection(Data[Member])); 3514 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 3515 W.startLine() << Name << " (" << Data[Member++] << ")\n"; 3516 } 3517 } 3518 } 3519 ++SectionIndex; 3520 } 3521 if (!HasGroups) 3522 W.startLine() << "There are no group sections in the file.\n"; 3523 } 3524 3525 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) { 3526 ListScope D(W, "Relocations"); 3527 3528 int SectionNumber = -1; 3529 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3530 ++SectionNumber; 3531 3532 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA) 3533 continue; 3534 3535 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 3536 3537 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; 3538 W.indent(); 3539 3540 printRelocations(&Sec, Obj); 3541 3542 W.unindent(); 3543 W.startLine() << "}\n"; 3544 } 3545 } 3546 3547 template <class ELFT> 3548 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) { 3549 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 3550 3551 switch (Sec->sh_type) { 3552 case ELF::SHT_REL: 3553 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) { 3554 Elf_Rela Rela; 3555 Rela.r_offset = R.r_offset; 3556 Rela.r_info = R.r_info; 3557 Rela.r_addend = 0; 3558 printRelocation(Obj, Rela, SymTab); 3559 } 3560 break; 3561 case ELF::SHT_RELA: 3562 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec))) 3563 printRelocation(Obj, R, SymTab); 3564 break; 3565 } 3566 } 3567 3568 template <class ELFT> 3569 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel, 3570 const Elf_Shdr *SymTab) { 3571 SmallString<32> RelocName; 3572 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 3573 StringRef TargetName; 3574 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab)); 3575 if (Sym && Sym->getType() == ELF::STT_SECTION) { 3576 const Elf_Shdr *Sec = unwrapOrError( 3577 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 3578 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 3579 } else if (Sym) { 3580 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 3581 TargetName = unwrapOrError(Sym->getName(StrTable)); 3582 } 3583 3584 if (opts::ExpandRelocs) { 3585 DictScope Group(W, "Relocation"); 3586 W.printHex("Offset", Rel.r_offset); 3587 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 3588 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-", 3589 Rel.getSymbol(Obj->isMips64EL())); 3590 W.printHex("Addend", Rel.r_addend); 3591 } else { 3592 raw_ostream &OS = W.startLine(); 3593 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 3594 << (!TargetName.empty() ? TargetName : "-") << " " 3595 << W.hex(Rel.r_addend) << "\n"; 3596 } 3597 } 3598 3599 template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) { 3600 ListScope SectionsD(W, "Sections"); 3601 3602 int SectionIndex = -1; 3603 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3604 ++SectionIndex; 3605 3606 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 3607 3608 DictScope SectionD(W, "Section"); 3609 W.printNumber("Index", SectionIndex); 3610 W.printNumber("Name", Name, Sec.sh_name); 3611 W.printHex( 3612 "Type", 3613 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type), 3614 Sec.sh_type); 3615 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags), 3616 std::end(ElfSectionFlags)); 3617 switch (Obj->getHeader()->e_machine) { 3618 case EM_ARM: 3619 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags), 3620 std::end(ElfARMSectionFlags)); 3621 break; 3622 case EM_HEXAGON: 3623 SectionFlags.insert(SectionFlags.end(), 3624 std::begin(ElfHexagonSectionFlags), 3625 std::end(ElfHexagonSectionFlags)); 3626 break; 3627 case EM_MIPS: 3628 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags), 3629 std::end(ElfMipsSectionFlags)); 3630 break; 3631 case EM_X86_64: 3632 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags), 3633 std::end(ElfX86_64SectionFlags)); 3634 break; 3635 case EM_XCORE: 3636 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags), 3637 std::end(ElfXCoreSectionFlags)); 3638 break; 3639 default: 3640 // Nothing to do. 3641 break; 3642 } 3643 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags)); 3644 W.printHex("Address", Sec.sh_addr); 3645 W.printHex("Offset", Sec.sh_offset); 3646 W.printNumber("Size", Sec.sh_size); 3647 W.printNumber("Link", Sec.sh_link); 3648 W.printNumber("Info", Sec.sh_info); 3649 W.printNumber("AddressAlignment", Sec.sh_addralign); 3650 W.printNumber("EntrySize", Sec.sh_entsize); 3651 3652 if (opts::SectionRelocations) { 3653 ListScope D(W, "Relocations"); 3654 printRelocations(&Sec, Obj); 3655 } 3656 3657 if (opts::SectionSymbols) { 3658 ListScope D(W, "Symbols"); 3659 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec(); 3660 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 3661 3662 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) { 3663 const Elf_Shdr *SymSec = unwrapOrError( 3664 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable())); 3665 if (SymSec == &Sec) 3666 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(), 3667 StrTable, false); 3668 } 3669 } 3670 3671 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) { 3672 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec)); 3673 W.printBinaryBlock("SectionData", 3674 StringRef((const char *)Data.data(), Data.size())); 3675 } 3676 } 3677 } 3678 3679 template <class ELFT> 3680 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 3681 const Elf_Sym *First, StringRef StrTable, 3682 bool IsDynamic) { 3683 unsigned SectionIndex = 0; 3684 StringRef SectionName; 3685 getSectionNameIndex(*Obj, Symbol, First, this->dumper()->getShndxTable(), 3686 SectionName, SectionIndex); 3687 std::string FullSymbolName = 3688 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 3689 unsigned char SymbolType = Symbol->getType(); 3690 3691 DictScope D(W, "Symbol"); 3692 W.printNumber("Name", FullSymbolName, Symbol->st_name); 3693 W.printHex("Value", Symbol->st_value); 3694 W.printNumber("Size", Symbol->st_size); 3695 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3696 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3697 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3698 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3699 else 3700 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes)); 3701 if (Symbol->st_other == 0) 3702 // Usually st_other flag is zero. Do not pollute the output 3703 // by flags enumeration in that case. 3704 W.printNumber("Other", 0); 3705 else { 3706 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags), 3707 std::end(ElfSymOtherFlags)); 3708 if (Obj->getHeader()->e_machine == EM_MIPS) { 3709 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16 3710 // flag overlapped with other ST_MIPS_xxx flags. So consider both 3711 // cases separately. 3712 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16) 3713 SymOtherFlags.insert(SymOtherFlags.end(), 3714 std::begin(ElfMips16SymOtherFlags), 3715 std::end(ElfMips16SymOtherFlags)); 3716 else 3717 SymOtherFlags.insert(SymOtherFlags.end(), 3718 std::begin(ElfMipsSymOtherFlags), 3719 std::end(ElfMipsSymOtherFlags)); 3720 } 3721 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u); 3722 } 3723 W.printHex("Section", SectionName, SectionIndex); 3724 } 3725 3726 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) { 3727 ListScope Group(W, "Symbols"); 3728 this->dumper()->printSymbolsHelper(false); 3729 } 3730 3731 template <class ELFT> 3732 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 3733 ListScope Group(W, "DynamicSymbols"); 3734 this->dumper()->printSymbolsHelper(true); 3735 } 3736 3737 template <class ELFT> 3738 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3739 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3740 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3741 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3742 if (DynRelRegion.Size && DynRelaRegion.Size) 3743 report_fatal_error("There are both REL and RELA dynamic relocations"); 3744 W.startLine() << "Dynamic Relocations {\n"; 3745 W.indent(); 3746 if (DynRelaRegion.Size > 0) 3747 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3748 printDynamicRelocation(Obj, Rela); 3749 else 3750 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3751 Elf_Rela Rela; 3752 Rela.r_offset = Rel.r_offset; 3753 Rela.r_info = Rel.r_info; 3754 Rela.r_addend = 0; 3755 printDynamicRelocation(Obj, Rela); 3756 } 3757 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) 3758 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3759 printDynamicRelocation(Obj, Rela); 3760 else 3761 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3762 Elf_Rela Rela; 3763 Rela.r_offset = Rel.r_offset; 3764 Rela.r_info = Rel.r_info; 3765 Rela.r_addend = 0; 3766 printDynamicRelocation(Obj, Rela); 3767 } 3768 W.unindent(); 3769 W.startLine() << "}\n"; 3770 } 3771 3772 template <class ELFT> 3773 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) { 3774 SmallString<32> RelocName; 3775 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 3776 StringRef SymbolName; 3777 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL()); 3778 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3779 SymbolName = 3780 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 3781 if (opts::ExpandRelocs) { 3782 DictScope Group(W, "Relocation"); 3783 W.printHex("Offset", Rel.r_offset); 3784 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 3785 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-"); 3786 W.printHex("Addend", Rel.r_addend); 3787 } else { 3788 raw_ostream &OS = W.startLine(); 3789 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 3790 << (!SymbolName.empty() ? SymbolName : "-") << " " 3791 << W.hex(Rel.r_addend) << "\n"; 3792 } 3793 } 3794 3795 template <class ELFT> 3796 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3797 ListScope L(W, "ProgramHeaders"); 3798 3799 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3800 DictScope P(W, "ProgramHeader"); 3801 W.printHex("Type", 3802 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type), 3803 Phdr.p_type); 3804 W.printHex("Offset", Phdr.p_offset); 3805 W.printHex("VirtualAddress", Phdr.p_vaddr); 3806 W.printHex("PhysicalAddress", Phdr.p_paddr); 3807 W.printNumber("FileSize", Phdr.p_filesz); 3808 W.printNumber("MemSize", Phdr.p_memsz); 3809 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags)); 3810 W.printNumber("Alignment", Phdr.p_align); 3811 } 3812 } 3813 3814 template <class ELFT> 3815 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3816 W.startLine() << "Hash Histogram not implemented!\n"; 3817 } 3818 3819 template <class ELFT> 3820 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3821 W.startLine() << "printNotes not implemented!\n"; 3822 } 3823