1 //===- ELFDumper.cpp - ELF-specific dumper --------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 /// 9 /// \file 10 /// This file implements the ELF-specific dumper for llvm-readobj. 11 /// 12 //===----------------------------------------------------------------------===// 13 14 #include "ARMEHABIPrinter.h" 15 #include "DwarfCFIEHPrinter.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/DenseMap.h" 22 #include "llvm/ADT/DenseSet.h" 23 #include "llvm/ADT/Optional.h" 24 #include "llvm/ADT/PointerIntPair.h" 25 #include "llvm/ADT/STLExtras.h" 26 #include "llvm/ADT/SmallString.h" 27 #include "llvm/ADT/SmallVector.h" 28 #include "llvm/ADT/StringExtras.h" 29 #include "llvm/ADT/StringRef.h" 30 #include "llvm/ADT/Twine.h" 31 #include "llvm/BinaryFormat/AMDGPUMetadataVerifier.h" 32 #include "llvm/BinaryFormat/ELF.h" 33 #include "llvm/Demangle/Demangle.h" 34 #include "llvm/Object/ELF.h" 35 #include "llvm/Object/ELFObjectFile.h" 36 #include "llvm/Object/ELFTypes.h" 37 #include "llvm/Object/Error.h" 38 #include "llvm/Object/ObjectFile.h" 39 #include "llvm/Object/StackMapParser.h" 40 #include "llvm/Support/AMDGPUMetadata.h" 41 #include "llvm/Support/ARMAttributeParser.h" 42 #include "llvm/Support/ARMBuildAttributes.h" 43 #include "llvm/Support/Casting.h" 44 #include "llvm/Support/Compiler.h" 45 #include "llvm/Support/Endian.h" 46 #include "llvm/Support/ErrorHandling.h" 47 #include "llvm/Support/Format.h" 48 #include "llvm/Support/FormatVariadic.h" 49 #include "llvm/Support/FormattedStream.h" 50 #include "llvm/Support/LEB128.h" 51 #include "llvm/Support/MathExtras.h" 52 #include "llvm/Support/MipsABIFlags.h" 53 #include "llvm/Support/ScopedPrinter.h" 54 #include "llvm/Support/raw_ostream.h" 55 #include <algorithm> 56 #include <cinttypes> 57 #include <cstddef> 58 #include <cstdint> 59 #include <cstdlib> 60 #include <iterator> 61 #include <memory> 62 #include <string> 63 #include <system_error> 64 #include <vector> 65 66 using namespace llvm; 67 using namespace llvm::object; 68 using namespace ELF; 69 70 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \ 71 case ns::enum: return #enum; 72 73 #define ENUM_ENT(enum, altName) \ 74 { #enum, altName, ELF::enum } 75 76 #define ENUM_ENT_1(enum) \ 77 { #enum, #enum, ELF::enum } 78 79 #define LLVM_READOBJ_PHDR_ENUM(ns, enum) \ 80 case ns::enum: \ 81 return std::string(#enum).substr(3); 82 83 #define TYPEDEF_ELF_TYPES(ELFT) \ 84 using ELFO = ELFFile<ELFT>; \ 85 using Elf_Addr = typename ELFT::Addr; \ 86 using Elf_Shdr = typename ELFT::Shdr; \ 87 using Elf_Sym = typename ELFT::Sym; \ 88 using Elf_Dyn = typename ELFT::Dyn; \ 89 using Elf_Dyn_Range = typename ELFT::DynRange; \ 90 using Elf_Rel = typename ELFT::Rel; \ 91 using Elf_Rela = typename ELFT::Rela; \ 92 using Elf_Relr = typename ELFT::Relr; \ 93 using Elf_Rel_Range = typename ELFT::RelRange; \ 94 using Elf_Rela_Range = typename ELFT::RelaRange; \ 95 using Elf_Relr_Range = typename ELFT::RelrRange; \ 96 using Elf_Phdr = typename ELFT::Phdr; \ 97 using Elf_Half = typename ELFT::Half; \ 98 using Elf_Ehdr = typename ELFT::Ehdr; \ 99 using Elf_Word = typename ELFT::Word; \ 100 using Elf_Hash = typename ELFT::Hash; \ 101 using Elf_GnuHash = typename ELFT::GnuHash; \ 102 using Elf_Note = typename ELFT::Note; \ 103 using Elf_Sym_Range = typename ELFT::SymRange; \ 104 using Elf_Versym = typename ELFT::Versym; \ 105 using Elf_Verneed = typename ELFT::Verneed; \ 106 using Elf_Vernaux = typename ELFT::Vernaux; \ 107 using Elf_Verdef = typename ELFT::Verdef; \ 108 using Elf_Verdaux = typename ELFT::Verdaux; \ 109 using Elf_CGProfile = typename ELFT::CGProfile; \ 110 using uintX_t = typename ELFT::uint; 111 112 namespace { 113 114 template <class ELFT> class DumpStyle; 115 116 /// Represents a contiguous uniform range in the file. We cannot just create a 117 /// range directly because when creating one of these from the .dynamic table 118 /// the size, entity size and virtual address are different entries in arbitrary 119 /// order (DT_REL, DT_RELSZ, DT_RELENT for example). 120 struct DynRegionInfo { 121 DynRegionInfo() = default; 122 DynRegionInfo(const void *A, uint64_t S, uint64_t ES) 123 : Addr(A), Size(S), EntSize(ES) {} 124 125 /// Address in current address space. 126 const void *Addr = nullptr; 127 /// Size in bytes of the region. 128 uint64_t Size = 0; 129 /// Size of each entity in the region. 130 uint64_t EntSize = 0; 131 132 template <typename Type> ArrayRef<Type> getAsArrayRef() const { 133 const Type *Start = reinterpret_cast<const Type *>(Addr); 134 if (!Start) 135 return {Start, Start}; 136 if (EntSize != sizeof(Type) || Size % EntSize) 137 reportError("Invalid entity size"); 138 return {Start, Start + (Size / EntSize)}; 139 } 140 }; 141 142 template<typename ELFT> 143 class ELFDumper : public ObjDumper { 144 public: 145 ELFDumper(const object::ELFObjectFile<ELFT> *ObjF, ScopedPrinter &Writer); 146 147 void printFileHeaders() override; 148 void printSectionHeaders() override; 149 void printRelocations() override; 150 void printDynamicRelocations() override; 151 void printSymbols(bool PrintSymbols, bool PrintDynamicSymbols) override; 152 void printHashSymbols() override; 153 void printUnwindInfo() override; 154 155 void printDynamicTable() override; 156 void printNeededLibraries() override; 157 void printProgramHeaders(bool PrintProgramHeaders, 158 cl::boolOrDefault PrintSectionMapping) override; 159 void printHashTable() override; 160 void printGnuHashTable() override; 161 void printLoadName() override; 162 void printVersionInfo() override; 163 void printGroupSections() override; 164 165 void printAttributes() override; 166 void printMipsPLTGOT() override; 167 void printMipsABIFlags() override; 168 void printMipsReginfo() override; 169 void printMipsOptions() override; 170 171 void printStackMap() const override; 172 173 void printHashHistogram() override; 174 175 void printCGProfile() override; 176 void printAddrsig() override; 177 178 void printNotes() override; 179 180 void printELFLinkerOptions() override; 181 182 private: 183 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle; 184 185 TYPEDEF_ELF_TYPES(ELFT) 186 187 DynRegionInfo checkDRI(DynRegionInfo DRI) { 188 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 189 if (DRI.Addr < Obj->base() || 190 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize()) 191 error(llvm::object::object_error::parse_failed); 192 return DRI; 193 } 194 195 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) { 196 return checkDRI({ObjF->getELFFile()->base() + P->p_offset, P->p_filesz, EntSize}); 197 } 198 199 DynRegionInfo createDRIFrom(const Elf_Shdr *S) { 200 return checkDRI({ObjF->getELFFile()->base() + S->sh_offset, S->sh_size, S->sh_entsize}); 201 } 202 203 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments); 204 205 void printValue(uint64_t Type, uint64_t Value); 206 207 StringRef getDynamicString(uint64_t Offset) const; 208 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb, 209 bool &IsDefault) const; 210 void LoadVersionMap() const; 211 void LoadVersionNeeds(const Elf_Shdr *ec) const; 212 void LoadVersionDefs(const Elf_Shdr *sec) const; 213 214 const object::ELFObjectFile<ELFT> *ObjF; 215 DynRegionInfo DynRelRegion; 216 DynRegionInfo DynRelaRegion; 217 DynRegionInfo DynRelrRegion; 218 DynRegionInfo DynPLTRelRegion; 219 DynRegionInfo DynSymRegion; 220 DynRegionInfo DynamicTable; 221 StringRef DynamicStringTable; 222 StringRef SOName; 223 const Elf_Hash *HashTable = nullptr; 224 const Elf_GnuHash *GnuHashTable = nullptr; 225 const Elf_Shdr *DotSymtabSec = nullptr; 226 const Elf_Shdr *DotCGProfileSec = nullptr; 227 const Elf_Shdr *DotAddrsigSec = nullptr; 228 StringRef DynSymtabName; 229 ArrayRef<Elf_Word> ShndxTable; 230 231 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version 232 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r 233 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d 234 235 // Records for each version index the corresponding Verdef or Vernaux entry. 236 // This is filled the first time LoadVersionMap() is called. 237 class VersionMapEntry : public PointerIntPair<const void *, 1> { 238 public: 239 // If the integer is 0, this is an Elf_Verdef*. 240 // If the integer is 1, this is an Elf_Vernaux*. 241 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {} 242 VersionMapEntry(const Elf_Verdef *verdef) 243 : PointerIntPair<const void *, 1>(verdef, 0) {} 244 VersionMapEntry(const Elf_Vernaux *vernaux) 245 : PointerIntPair<const void *, 1>(vernaux, 1) {} 246 247 bool isNull() const { return getPointer() == nullptr; } 248 bool isVerdef() const { return !isNull() && getInt() == 0; } 249 bool isVernaux() const { return !isNull() && getInt() == 1; } 250 const Elf_Verdef *getVerdef() const { 251 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr; 252 } 253 const Elf_Vernaux *getVernaux() const { 254 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr; 255 } 256 }; 257 mutable SmallVector<VersionMapEntry, 16> VersionMap; 258 259 public: 260 Elf_Dyn_Range dynamic_table() const { 261 return DynamicTable.getAsArrayRef<Elf_Dyn>(); 262 } 263 264 Elf_Sym_Range dynamic_symbols() const { 265 return DynSymRegion.getAsArrayRef<Elf_Sym>(); 266 } 267 268 Elf_Rel_Range dyn_rels() const; 269 Elf_Rela_Range dyn_relas() const; 270 Elf_Relr_Range dyn_relrs() const; 271 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable, 272 bool IsDynamic) const; 273 void getSectionNameIndex(const Elf_Sym *Symbol, const Elf_Sym *FirstSym, 274 StringRef &SectionName, 275 unsigned &SectionIndex) const; 276 std::string getStaticSymbolName(uint32_t Index) const; 277 278 void printSymbolsHelper(bool IsDynamic) const; 279 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; } 280 const Elf_Shdr *getDotCGProfileSec() const { return DotCGProfileSec; } 281 const Elf_Shdr *getDotAddrsigSec() const { return DotAddrsigSec; } 282 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; } 283 StringRef getDynamicStringTable() const { return DynamicStringTable; } 284 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; } 285 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; } 286 const DynRegionInfo &getDynRelrRegion() const { return DynRelrRegion; } 287 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; } 288 const Elf_Hash *getHashTable() const { return HashTable; } 289 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; } 290 }; 291 292 template <class ELFT> 293 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const { 294 StringRef StrTable, SymtabName; 295 size_t Entries = 0; 296 Elf_Sym_Range Syms(nullptr, nullptr); 297 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 298 if (IsDynamic) { 299 StrTable = DynamicStringTable; 300 Syms = dynamic_symbols(); 301 SymtabName = DynSymtabName; 302 if (DynSymRegion.Addr) 303 Entries = DynSymRegion.Size / DynSymRegion.EntSize; 304 } else { 305 if (!DotSymtabSec) 306 return; 307 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 308 Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 309 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec)); 310 Entries = DotSymtabSec->getEntityCount(); 311 } 312 if (Syms.begin() == Syms.end()) 313 return; 314 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries); 315 for (const auto &Sym : Syms) 316 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic); 317 } 318 319 template <class ELFT> class MipsGOTParser; 320 321 template <typename ELFT> class DumpStyle { 322 public: 323 using Elf_Shdr = typename ELFT::Shdr; 324 using Elf_Sym = typename ELFT::Sym; 325 326 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {} 327 virtual ~DumpStyle() = default; 328 329 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0; 330 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0; 331 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0; 332 virtual void printSectionHeaders(const ELFFile<ELFT> *Obj) = 0; 333 virtual void printSymbols(const ELFFile<ELFT> *Obj, bool PrintSymbols, 334 bool PrintDynamicSymbols) = 0; 335 virtual void printHashSymbols(const ELFFile<ELFT> *Obj) {} 336 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0; 337 virtual void printSymtabMessage(const ELFFile<ELFT> *Obj, StringRef Name, 338 size_t Offset) {} 339 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol, 340 const Elf_Sym *FirstSym, StringRef StrTable, 341 bool IsDynamic) = 0; 342 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj, 343 bool PrintProgramHeaders, 344 cl::boolOrDefault PrintSectionMapping) = 0; 345 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0; 346 virtual void printCGProfile(const ELFFile<ELFT> *Obj) = 0; 347 virtual void printAddrsig(const ELFFile<ELFT> *Obj) = 0; 348 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0; 349 virtual void printELFLinkerOptions(const ELFFile<ELFT> *Obj) = 0; 350 virtual void printMipsGOT(const MipsGOTParser<ELFT> &Parser) = 0; 351 virtual void printMipsPLT(const MipsGOTParser<ELFT> &Parser) = 0; 352 const ELFDumper<ELFT> *dumper() const { return Dumper; } 353 354 private: 355 const ELFDumper<ELFT> *Dumper; 356 }; 357 358 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> { 359 formatted_raw_ostream OS; 360 361 public: 362 TYPEDEF_ELF_TYPES(ELFT) 363 364 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 365 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {} 366 367 void printFileHeaders(const ELFO *Obj) override; 368 void printGroupSections(const ELFFile<ELFT> *Obj) override; 369 void printRelocations(const ELFO *Obj) override; 370 void printSectionHeaders(const ELFO *Obj) override; 371 void printSymbols(const ELFO *Obj, bool PrintSymbols, 372 bool PrintDynamicSymbols) override; 373 void printHashSymbols(const ELFO *Obj) override; 374 void printDynamicRelocations(const ELFO *Obj) override; 375 void printSymtabMessage(const ELFO *Obj, StringRef Name, 376 size_t Offset) override; 377 void printProgramHeaders(const ELFO *Obj, bool PrintProgramHeaders, 378 cl::boolOrDefault PrintSectionMapping) override; 379 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 380 void printCGProfile(const ELFFile<ELFT> *Obj) override; 381 void printAddrsig(const ELFFile<ELFT> *Obj) override; 382 void printNotes(const ELFFile<ELFT> *Obj) override; 383 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; 384 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; 385 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override; 386 387 private: 388 struct Field { 389 std::string Str; 390 unsigned Column; 391 392 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {} 393 Field(unsigned Col) : Column(Col) {} 394 }; 395 396 template <typename T, typename TEnum> 397 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) { 398 for (const auto &EnumItem : EnumValues) 399 if (EnumItem.Value == Value) 400 return EnumItem.AltName; 401 return to_hexString(Value, false); 402 } 403 404 template <typename T, typename TEnum> 405 std::string printFlags(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues, 406 TEnum EnumMask1 = {}, TEnum EnumMask2 = {}, 407 TEnum EnumMask3 = {}) { 408 std::string Str; 409 for (const auto &Flag : EnumValues) { 410 if (Flag.Value == 0) 411 continue; 412 413 TEnum EnumMask{}; 414 if (Flag.Value & EnumMask1) 415 EnumMask = EnumMask1; 416 else if (Flag.Value & EnumMask2) 417 EnumMask = EnumMask2; 418 else if (Flag.Value & EnumMask3) 419 EnumMask = EnumMask3; 420 bool IsEnum = (Flag.Value & EnumMask) != 0; 421 if ((!IsEnum && (Value & Flag.Value) == Flag.Value) || 422 (IsEnum && (Value & EnumMask) == Flag.Value)) { 423 if (!Str.empty()) 424 Str += ", "; 425 Str += Flag.AltName; 426 } 427 } 428 return Str; 429 } 430 431 formatted_raw_ostream &printField(struct Field F) { 432 if (F.Column != 0) 433 OS.PadToColumn(F.Column); 434 OS << F.Str; 435 OS.flush(); 436 return OS; 437 } 438 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym, 439 StringRef StrTable, uint32_t Bucket); 440 void printRelocHeader(unsigned SType); 441 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 442 const Elf_Rela &R, bool IsRela); 443 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 444 StringRef StrTable, bool IsDynamic) override; 445 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol, 446 const Elf_Sym *FirstSym); 447 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela); 448 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 449 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 450 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 451 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 452 void printProgramHeaders(const ELFO *Obj); 453 void printSectionMapping(const ELFO *Obj); 454 }; 455 456 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> { 457 public: 458 TYPEDEF_ELF_TYPES(ELFT) 459 460 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 461 : DumpStyle<ELFT>(Dumper), W(W) {} 462 463 void printFileHeaders(const ELFO *Obj) override; 464 void printGroupSections(const ELFFile<ELFT> *Obj) override; 465 void printRelocations(const ELFO *Obj) override; 466 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj); 467 void printSectionHeaders(const ELFO *Obj) override; 468 void printSymbols(const ELFO *Obj, bool PrintSymbols, 469 bool PrintDynamicSymbols) override; 470 void printDynamicRelocations(const ELFO *Obj) override; 471 void printProgramHeaders(const ELFO *Obj, bool PrintProgramHeaders, 472 cl::boolOrDefault PrintSectionMapping) override; 473 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 474 void printCGProfile(const ELFFile<ELFT> *Obj) override; 475 void printAddrsig(const ELFFile<ELFT> *Obj) override; 476 void printNotes(const ELFFile<ELFT> *Obj) override; 477 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; 478 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; 479 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override; 480 481 private: 482 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab); 483 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel); 484 void printSymbols(const ELFO *Obj); 485 void printDynamicSymbols(const ELFO *Obj); 486 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 487 StringRef StrTable, bool IsDynamic) override; 488 void printProgramHeaders(const ELFO *Obj); 489 void printSectionMapping(const ELFO *Obj) {} 490 491 ScopedPrinter &W; 492 }; 493 494 } // end anonymous namespace 495 496 namespace llvm { 497 498 template <class ELFT> 499 static std::error_code createELFDumper(const ELFObjectFile<ELFT> *Obj, 500 ScopedPrinter &Writer, 501 std::unique_ptr<ObjDumper> &Result) { 502 Result.reset(new ELFDumper<ELFT>(Obj, Writer)); 503 return readobj_error::success; 504 } 505 506 std::error_code createELFDumper(const object::ObjectFile *Obj, 507 ScopedPrinter &Writer, 508 std::unique_ptr<ObjDumper> &Result) { 509 // Little-endian 32-bit 510 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) 511 return createELFDumper(ELFObj, Writer, Result); 512 513 // Big-endian 32-bit 514 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) 515 return createELFDumper(ELFObj, Writer, Result); 516 517 // Little-endian 64-bit 518 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) 519 return createELFDumper(ELFObj, Writer, Result); 520 521 // Big-endian 64-bit 522 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) 523 return createELFDumper(ELFObj, Writer, Result); 524 525 return readobj_error::unsupported_obj_file_format; 526 } 527 528 } // end namespace llvm 529 530 // Iterate through the versions needed section, and place each Elf_Vernaux 531 // in the VersionMap according to its index. 532 template <class ELFT> 533 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const { 534 unsigned vn_size = sec->sh_size; // Size of section in bytes 535 unsigned vn_count = sec->sh_info; // Number of Verneed entries 536 const char *sec_start = (const char *)ObjF->getELFFile()->base() + sec->sh_offset; 537 const char *sec_end = sec_start + vn_size; 538 // The first Verneed entry is at the start of the section. 539 const char *p = sec_start; 540 for (unsigned i = 0; i < vn_count; i++) { 541 if (p + sizeof(Elf_Verneed) > sec_end) 542 report_fatal_error("Section ended unexpectedly while scanning " 543 "version needed records."); 544 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p); 545 if (vn->vn_version != ELF::VER_NEED_CURRENT) 546 report_fatal_error("Unexpected verneed version"); 547 // Iterate through the Vernaux entries 548 const char *paux = p + vn->vn_aux; 549 for (unsigned j = 0; j < vn->vn_cnt; j++) { 550 if (paux + sizeof(Elf_Vernaux) > sec_end) 551 report_fatal_error("Section ended unexpected while scanning auxiliary " 552 "version needed records."); 553 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux); 554 size_t index = vna->vna_other & ELF::VERSYM_VERSION; 555 if (index >= VersionMap.size()) 556 VersionMap.resize(index + 1); 557 VersionMap[index] = VersionMapEntry(vna); 558 paux += vna->vna_next; 559 } 560 p += vn->vn_next; 561 } 562 } 563 564 // Iterate through the version definitions, and place each Elf_Verdef 565 // in the VersionMap according to its index. 566 template <class ELFT> 567 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const { 568 unsigned vd_size = sec->sh_size; // Size of section in bytes 569 unsigned vd_count = sec->sh_info; // Number of Verdef entries 570 const char *sec_start = (const char *)ObjF->getELFFile()->base() + sec->sh_offset; 571 const char *sec_end = sec_start + vd_size; 572 // The first Verdef entry is at the start of the section. 573 const char *p = sec_start; 574 for (unsigned i = 0; i < vd_count; i++) { 575 if (p + sizeof(Elf_Verdef) > sec_end) 576 report_fatal_error("Section ended unexpectedly while scanning " 577 "version definitions."); 578 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p); 579 if (vd->vd_version != ELF::VER_DEF_CURRENT) 580 report_fatal_error("Unexpected verdef version"); 581 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION; 582 if (index >= VersionMap.size()) 583 VersionMap.resize(index + 1); 584 VersionMap[index] = VersionMapEntry(vd); 585 p += vd->vd_next; 586 } 587 } 588 589 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const { 590 // If there is no dynamic symtab or version table, there is nothing to do. 591 if (!DynSymRegion.Addr || !dot_gnu_version_sec) 592 return; 593 594 // Has the VersionMap already been loaded? 595 if (!VersionMap.empty()) 596 return; 597 598 // The first two version indexes are reserved. 599 // Index 0 is LOCAL, index 1 is GLOBAL. 600 VersionMap.push_back(VersionMapEntry()); 601 VersionMap.push_back(VersionMapEntry()); 602 603 if (dot_gnu_version_d_sec) 604 LoadVersionDefs(dot_gnu_version_d_sec); 605 606 if (dot_gnu_version_r_sec) 607 LoadVersionNeeds(dot_gnu_version_r_sec); 608 } 609 610 template <typename ELFO, class ELFT> 611 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 612 const typename ELFO::Elf_Shdr *Sec, 613 ScopedPrinter &W) { 614 DictScope SS(W, "Version symbols"); 615 if (!Sec) 616 return; 617 StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 618 W.printNumber("Section Name", Name, Sec->sh_name); 619 W.printHex("Address", Sec->sh_addr); 620 W.printHex("Offset", Sec->sh_offset); 621 W.printNumber("Link", Sec->sh_link); 622 623 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset; 624 StringRef StrTable = Dumper->getDynamicStringTable(); 625 626 // Same number of entries in the dynamic symbol table (DT_SYMTAB). 627 ListScope Syms(W, "Symbols"); 628 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) { 629 DictScope S(W, "Symbol"); 630 std::string FullSymbolName = 631 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */); 632 W.printNumber("Version", *P); 633 W.printString("Name", FullSymbolName); 634 P += sizeof(typename ELFO::Elf_Half); 635 } 636 } 637 638 static const EnumEntry<unsigned> SymVersionFlags[] = { 639 {"Base", "BASE", VER_FLG_BASE}, 640 {"Weak", "WEAK", VER_FLG_WEAK}, 641 {"Info", "INFO", VER_FLG_INFO}}; 642 643 template <typename ELFO, class ELFT> 644 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper, 645 const ELFO *Obj, 646 const typename ELFO::Elf_Shdr *Sec, 647 ScopedPrinter &W) { 648 using VerDef = typename ELFO::Elf_Verdef; 649 using VerdAux = typename ELFO::Elf_Verdaux; 650 651 DictScope SD(W, "SHT_GNU_verdef"); 652 if (!Sec) 653 return; 654 655 const uint8_t *SecStartAddress = 656 (const uint8_t *)Obj->base() + Sec->sh_offset; 657 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size; 658 const uint8_t *P = SecStartAddress; 659 const typename ELFO::Elf_Shdr *StrTab = 660 unwrapOrError(Obj->getSection(Sec->sh_link)); 661 662 unsigned VerDefsNum = Sec->sh_info; 663 while (VerDefsNum--) { 664 if (P + sizeof(VerDef) > SecEndAddress) 665 report_fatal_error("invalid offset in the section"); 666 667 auto *VD = reinterpret_cast<const VerDef *>(P); 668 DictScope Def(W, "Definition"); 669 W.printNumber("Version", VD->vd_version); 670 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags)); 671 W.printNumber("Index", VD->vd_ndx); 672 W.printNumber("Hash", VD->vd_hash); 673 W.printString("Name", 674 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 675 VD->getAux()->vda_name))); 676 if (!VD->vd_cnt) 677 report_fatal_error("at least one definition string must exist"); 678 if (VD->vd_cnt > 2) 679 report_fatal_error("more than one predecessor is not expected"); 680 681 if (VD->vd_cnt == 2) { 682 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next; 683 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux); 684 W.printString("Predecessor", 685 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 686 Aux->vda_name))); 687 } 688 689 P += VD->vd_next; 690 } 691 } 692 693 template <typename ELFO, class ELFT> 694 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper, 695 const ELFO *Obj, 696 const typename ELFO::Elf_Shdr *Sec, 697 ScopedPrinter &W) { 698 using VerNeed = typename ELFO::Elf_Verneed; 699 using VernAux = typename ELFO::Elf_Vernaux; 700 701 DictScope SD(W, "SHT_GNU_verneed"); 702 if (!Sec) 703 return; 704 705 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset; 706 const typename ELFO::Elf_Shdr *StrTab = 707 unwrapOrError(Obj->getSection(Sec->sh_link)); 708 709 const uint8_t *P = SecData; 710 unsigned VerNeedNum = Sec->sh_info; 711 for (unsigned I = 0; I < VerNeedNum; ++I) { 712 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P); 713 DictScope Entry(W, "Dependency"); 714 W.printNumber("Version", Need->vn_version); 715 W.printNumber("Count", Need->vn_cnt); 716 W.printString("FileName", 717 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 718 Need->vn_file))); 719 720 const uint8_t *PAux = P + Need->vn_aux; 721 for (unsigned J = 0; J < Need->vn_cnt; ++J) { 722 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux); 723 DictScope Entry(W, "Entry"); 724 W.printNumber("Hash", Aux->vna_hash); 725 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags)); 726 W.printNumber("Index", Aux->vna_other); 727 W.printString("Name", 728 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 729 Aux->vna_name))); 730 PAux += Aux->vna_next; 731 } 732 P += Need->vn_next; 733 } 734 } 735 736 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() { 737 // Dump version symbol section. 738 printVersionSymbolSection(this, ObjF->getELFFile(), dot_gnu_version_sec, W); 739 740 // Dump version definition section. 741 printVersionDefinitionSection(this, ObjF->getELFFile(), dot_gnu_version_d_sec, W); 742 743 // Dump version dependency section. 744 printVersionDependencySection(this, ObjF->getELFFile(), dot_gnu_version_r_sec, W); 745 } 746 747 template <typename ELFT> 748 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, 749 const Elf_Sym *symb, 750 bool &IsDefault) const { 751 // This is a dynamic symbol. Look in the GNU symbol version table. 752 if (!dot_gnu_version_sec) { 753 // No version table. 754 IsDefault = false; 755 return StringRef(""); 756 } 757 758 // Determine the position in the symbol table of this entry. 759 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) - 760 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) / 761 sizeof(Elf_Sym); 762 763 // Get the corresponding version index entry 764 const Elf_Versym *vs = unwrapOrError( 765 ObjF->getELFFile()->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index)); 766 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION; 767 768 // Special markers for unversioned symbols. 769 if (version_index == ELF::VER_NDX_LOCAL || 770 version_index == ELF::VER_NDX_GLOBAL) { 771 IsDefault = false; 772 return StringRef(""); 773 } 774 775 // Lookup this symbol in the version table 776 LoadVersionMap(); 777 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull()) 778 reportError("Invalid version entry"); 779 const VersionMapEntry &entry = VersionMap[version_index]; 780 781 // Get the version name string 782 size_t name_offset; 783 if (entry.isVerdef()) { 784 // The first Verdaux entry holds the name. 785 name_offset = entry.getVerdef()->getAux()->vda_name; 786 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN); 787 } else { 788 name_offset = entry.getVernaux()->vna_name; 789 IsDefault = false; 790 } 791 if (name_offset >= StrTab.size()) 792 reportError("Invalid string offset"); 793 return StringRef(StrTab.data() + name_offset); 794 } 795 796 static std::string maybeDemangle(StringRef Name) { 797 return opts::Demangle ? demangle(Name) : Name.str(); 798 } 799 800 template <typename ELFT> 801 std::string ELFDumper<ELFT>::getStaticSymbolName(uint32_t Index) const { 802 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 803 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 804 Elf_Sym_Range Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 805 if (Index >= Syms.size()) 806 reportError("Invalid symbol index"); 807 const Elf_Sym *Sym = &Syms[Index]; 808 return maybeDemangle(unwrapOrError(Sym->getName(StrTable))); 809 } 810 811 template <typename ELFT> 812 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol, 813 StringRef StrTable, 814 bool IsDynamic) const { 815 std::string SymbolName = 816 maybeDemangle(unwrapOrError(Symbol->getName(StrTable))); 817 if (!IsDynamic) 818 return SymbolName; 819 820 bool IsDefault; 821 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault); 822 if (!Version.empty()) { 823 SymbolName += (IsDefault ? "@@" : "@"); 824 SymbolName += Version; 825 } 826 return SymbolName; 827 } 828 829 template <typename ELFT> 830 void ELFDumper<ELFT>::getSectionNameIndex(const Elf_Sym *Symbol, 831 const Elf_Sym *FirstSym, 832 StringRef &SectionName, 833 unsigned &SectionIndex) const { 834 SectionIndex = Symbol->st_shndx; 835 if (Symbol->isUndefined()) 836 SectionName = "Undefined"; 837 else if (Symbol->isProcessorSpecific()) 838 SectionName = "Processor Specific"; 839 else if (Symbol->isOSSpecific()) 840 SectionName = "Operating System Specific"; 841 else if (Symbol->isAbsolute()) 842 SectionName = "Absolute"; 843 else if (Symbol->isCommon()) 844 SectionName = "Common"; 845 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX) 846 SectionName = "Reserved"; 847 else { 848 if (SectionIndex == SHN_XINDEX) 849 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 850 Symbol, FirstSym, ShndxTable)); 851 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 852 const typename ELFT::Shdr *Sec = 853 unwrapOrError(Obj->getSection(SectionIndex)); 854 SectionName = unwrapOrError(Obj->getSectionName(Sec)); 855 } 856 } 857 858 template <class ELFO> 859 static const typename ELFO::Elf_Shdr * 860 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) { 861 for (const auto &Shdr : unwrapOrError(Obj->sections())) 862 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0) 863 return &Shdr; 864 return nullptr; 865 } 866 867 template <class ELFO> 868 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj, 869 StringRef Name) { 870 for (const auto &Shdr : unwrapOrError(Obj.sections())) { 871 if (Name == unwrapOrError(Obj.getSectionName(&Shdr))) 872 return &Shdr; 873 } 874 return nullptr; 875 } 876 877 static const EnumEntry<unsigned> ElfClass[] = { 878 {"None", "none", ELF::ELFCLASSNONE}, 879 {"32-bit", "ELF32", ELF::ELFCLASS32}, 880 {"64-bit", "ELF64", ELF::ELFCLASS64}, 881 }; 882 883 static const EnumEntry<unsigned> ElfDataEncoding[] = { 884 {"None", "none", ELF::ELFDATANONE}, 885 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB}, 886 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB}, 887 }; 888 889 static const EnumEntry<unsigned> ElfObjectFileType[] = { 890 {"None", "NONE (none)", ELF::ET_NONE}, 891 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL}, 892 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC}, 893 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN}, 894 {"Core", "CORE (Core file)", ELF::ET_CORE}, 895 }; 896 897 static const EnumEntry<unsigned> ElfOSABI[] = { 898 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE}, 899 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX}, 900 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD}, 901 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX}, 902 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD}, 903 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS}, 904 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX}, 905 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX}, 906 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD}, 907 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64}, 908 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO}, 909 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD}, 910 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS}, 911 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK}, 912 {"AROS", "AROS", ELF::ELFOSABI_AROS}, 913 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS}, 914 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI}, 915 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE} 916 }; 917 918 static const EnumEntry<unsigned> AMDGPUElfOSABI[] = { 919 {"AMDGPU_HSA", "AMDGPU - HSA", ELF::ELFOSABI_AMDGPU_HSA}, 920 {"AMDGPU_PAL", "AMDGPU - PAL", ELF::ELFOSABI_AMDGPU_PAL}, 921 {"AMDGPU_MESA3D", "AMDGPU - MESA3D", ELF::ELFOSABI_AMDGPU_MESA3D} 922 }; 923 924 static const EnumEntry<unsigned> ARMElfOSABI[] = { 925 {"ARM", "ARM", ELF::ELFOSABI_ARM} 926 }; 927 928 static const EnumEntry<unsigned> C6000ElfOSABI[] = { 929 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI}, 930 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX} 931 }; 932 933 static const EnumEntry<unsigned> ElfMachineType[] = { 934 ENUM_ENT(EM_NONE, "None"), 935 ENUM_ENT(EM_M32, "WE32100"), 936 ENUM_ENT(EM_SPARC, "Sparc"), 937 ENUM_ENT(EM_386, "Intel 80386"), 938 ENUM_ENT(EM_68K, "MC68000"), 939 ENUM_ENT(EM_88K, "MC88000"), 940 ENUM_ENT(EM_IAMCU, "EM_IAMCU"), 941 ENUM_ENT(EM_860, "Intel 80860"), 942 ENUM_ENT(EM_MIPS, "MIPS R3000"), 943 ENUM_ENT(EM_S370, "IBM System/370"), 944 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"), 945 ENUM_ENT(EM_PARISC, "HPPA"), 946 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"), 947 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"), 948 ENUM_ENT(EM_960, "Intel 80960"), 949 ENUM_ENT(EM_PPC, "PowerPC"), 950 ENUM_ENT(EM_PPC64, "PowerPC64"), 951 ENUM_ENT(EM_S390, "IBM S/390"), 952 ENUM_ENT(EM_SPU, "SPU"), 953 ENUM_ENT(EM_V800, "NEC V800 series"), 954 ENUM_ENT(EM_FR20, "Fujistsu FR20"), 955 ENUM_ENT(EM_RH32, "TRW RH-32"), 956 ENUM_ENT(EM_RCE, "Motorola RCE"), 957 ENUM_ENT(EM_ARM, "ARM"), 958 ENUM_ENT(EM_ALPHA, "EM_ALPHA"), 959 ENUM_ENT(EM_SH, "Hitachi SH"), 960 ENUM_ENT(EM_SPARCV9, "Sparc v9"), 961 ENUM_ENT(EM_TRICORE, "Siemens Tricore"), 962 ENUM_ENT(EM_ARC, "ARC"), 963 ENUM_ENT(EM_H8_300, "Hitachi H8/300"), 964 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"), 965 ENUM_ENT(EM_H8S, "Hitachi H8S"), 966 ENUM_ENT(EM_H8_500, "Hitachi H8/500"), 967 ENUM_ENT(EM_IA_64, "Intel IA-64"), 968 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"), 969 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"), 970 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"), 971 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"), 972 ENUM_ENT(EM_PCP, "Siemens PCP"), 973 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"), 974 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"), 975 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"), 976 ENUM_ENT(EM_ME16, "Toyota ME16 processor"), 977 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"), 978 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"), 979 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"), 980 ENUM_ENT(EM_PDSP, "Sony DSP processor"), 981 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"), 982 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"), 983 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"), 984 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"), 985 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"), 986 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"), 987 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"), 988 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"), 989 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"), 990 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"), 991 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"), 992 ENUM_ENT(EM_VAX, "Digital VAX"), 993 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"), 994 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"), 995 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"), 996 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"), 997 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"), 998 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"), 999 ENUM_ENT(EM_PRISM, "Vitesse Prism"), 1000 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"), 1001 ENUM_ENT(EM_FR30, "Fujitsu FR30"), 1002 ENUM_ENT(EM_D10V, "Mitsubishi D10V"), 1003 ENUM_ENT(EM_D30V, "Mitsubishi D30V"), 1004 ENUM_ENT(EM_V850, "NEC v850"), 1005 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"), 1006 ENUM_ENT(EM_MN10300, "Matsushita MN10300"), 1007 ENUM_ENT(EM_MN10200, "Matsushita MN10200"), 1008 ENUM_ENT(EM_PJ, "picoJava"), 1009 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"), 1010 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"), 1011 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"), 1012 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"), 1013 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"), 1014 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"), 1015 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"), 1016 ENUM_ENT(EM_SNP1K, "EM_SNP1K"), 1017 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"), 1018 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"), 1019 ENUM_ENT(EM_MAX, "MAX Processor"), 1020 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"), 1021 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"), 1022 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"), 1023 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"), 1024 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"), 1025 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"), 1026 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"), 1027 ENUM_ENT(EM_UNICORE, "Unicore"), 1028 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"), 1029 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"), 1030 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"), 1031 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"), 1032 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"), 1033 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"), 1034 ENUM_ENT(EM_M16C, "Renesas M16C"), 1035 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"), 1036 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"), 1037 ENUM_ENT(EM_M32C, "Renesas M32C"), 1038 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"), 1039 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"), 1040 ENUM_ENT(EM_SHARC, "EM_SHARC"), 1041 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"), 1042 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"), 1043 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"), 1044 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"), 1045 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"), 1046 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"), 1047 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"), 1048 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"), 1049 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"), 1050 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"), 1051 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"), 1052 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"), 1053 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"), 1054 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"), 1055 ENUM_ENT(EM_8051, "Intel 8051 and variants"), 1056 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"), 1057 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"), 1058 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"), 1059 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"), 1060 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"), 1061 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"), 1062 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"), 1063 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"), 1064 ENUM_ENT(EM_RX, "Renesas RX"), 1065 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"), 1066 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"), 1067 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"), 1068 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"), 1069 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"), 1070 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"), 1071 ENUM_ENT(EM_L10M, "EM_L10M"), 1072 ENUM_ENT(EM_K10M, "EM_K10M"), 1073 ENUM_ENT(EM_AARCH64, "AArch64"), 1074 ENUM_ENT(EM_AVR32, "Atmel Corporation 32-bit microprocessor family"), 1075 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"), 1076 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"), 1077 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"), 1078 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"), 1079 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"), 1080 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"), 1081 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"), 1082 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"), 1083 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"), 1084 ENUM_ENT(EM_OPEN8, "EM_OPEN8"), 1085 ENUM_ENT(EM_RL78, "Renesas RL78"), 1086 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"), 1087 ENUM_ENT(EM_78KOR, "EM_78KOR"), 1088 ENUM_ENT(EM_56800EX, "EM_56800EX"), 1089 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"), 1090 ENUM_ENT(EM_RISCV, "RISC-V"), 1091 ENUM_ENT(EM_LANAI, "EM_LANAI"), 1092 ENUM_ENT(EM_BPF, "EM_BPF"), 1093 }; 1094 1095 static const EnumEntry<unsigned> ElfSymbolBindings[] = { 1096 {"Local", "LOCAL", ELF::STB_LOCAL}, 1097 {"Global", "GLOBAL", ELF::STB_GLOBAL}, 1098 {"Weak", "WEAK", ELF::STB_WEAK}, 1099 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}}; 1100 1101 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = { 1102 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT}, 1103 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL}, 1104 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN}, 1105 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}}; 1106 1107 static const EnumEntry<unsigned> ElfSymbolTypes[] = { 1108 {"None", "NOTYPE", ELF::STT_NOTYPE}, 1109 {"Object", "OBJECT", ELF::STT_OBJECT}, 1110 {"Function", "FUNC", ELF::STT_FUNC}, 1111 {"Section", "SECTION", ELF::STT_SECTION}, 1112 {"File", "FILE", ELF::STT_FILE}, 1113 {"Common", "COMMON", ELF::STT_COMMON}, 1114 {"TLS", "TLS", ELF::STT_TLS}, 1115 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}}; 1116 1117 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = { 1118 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL } 1119 }; 1120 1121 static const char *getGroupType(uint32_t Flag) { 1122 if (Flag & ELF::GRP_COMDAT) 1123 return "COMDAT"; 1124 else 1125 return "(unknown)"; 1126 } 1127 1128 static const EnumEntry<unsigned> ElfSectionFlags[] = { 1129 ENUM_ENT(SHF_WRITE, "W"), 1130 ENUM_ENT(SHF_ALLOC, "A"), 1131 ENUM_ENT(SHF_EXCLUDE, "E"), 1132 ENUM_ENT(SHF_EXECINSTR, "X"), 1133 ENUM_ENT(SHF_MERGE, "M"), 1134 ENUM_ENT(SHF_STRINGS, "S"), 1135 ENUM_ENT(SHF_INFO_LINK, "I"), 1136 ENUM_ENT(SHF_LINK_ORDER, "L"), 1137 ENUM_ENT(SHF_OS_NONCONFORMING, "o"), 1138 ENUM_ENT(SHF_GROUP, "G"), 1139 ENUM_ENT(SHF_TLS, "T"), 1140 ENUM_ENT(SHF_MASKOS, "o"), 1141 ENUM_ENT(SHF_MASKPROC, "p"), 1142 ENUM_ENT_1(SHF_COMPRESSED), 1143 }; 1144 1145 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = { 1146 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION), 1147 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION) 1148 }; 1149 1150 static const EnumEntry<unsigned> ElfARMSectionFlags[] = { 1151 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE) 1152 }; 1153 1154 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = { 1155 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL) 1156 }; 1157 1158 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = { 1159 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES), 1160 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ), 1161 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ), 1162 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP), 1163 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ), 1164 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ), 1165 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ), 1166 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING ) 1167 }; 1168 1169 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = { 1170 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE) 1171 }; 1172 1173 static std::string getGNUFlags(uint64_t Flags) { 1174 std::string Str; 1175 for (auto Entry : ElfSectionFlags) { 1176 uint64_t Flag = Entry.Value & Flags; 1177 Flags &= ~Entry.Value; 1178 switch (Flag) { 1179 case ELF::SHF_WRITE: 1180 case ELF::SHF_ALLOC: 1181 case ELF::SHF_EXECINSTR: 1182 case ELF::SHF_MERGE: 1183 case ELF::SHF_STRINGS: 1184 case ELF::SHF_INFO_LINK: 1185 case ELF::SHF_LINK_ORDER: 1186 case ELF::SHF_OS_NONCONFORMING: 1187 case ELF::SHF_GROUP: 1188 case ELF::SHF_TLS: 1189 case ELF::SHF_EXCLUDE: 1190 Str += Entry.AltName; 1191 break; 1192 default: 1193 if (Flag & ELF::SHF_MASKOS) 1194 Str += "o"; 1195 else if (Flag & ELF::SHF_MASKPROC) 1196 Str += "p"; 1197 else if (Flag) 1198 Str += "x"; 1199 } 1200 } 1201 return Str; 1202 } 1203 1204 static const char *getElfSegmentType(unsigned Arch, unsigned Type) { 1205 // Check potentially overlapped processor-specific 1206 // program header type. 1207 switch (Arch) { 1208 case ELF::EM_ARM: 1209 switch (Type) { 1210 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX); 1211 } 1212 break; 1213 case ELF::EM_MIPS: 1214 case ELF::EM_MIPS_RS3_LE: 1215 switch (Type) { 1216 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO); 1217 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC); 1218 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS); 1219 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS); 1220 } 1221 break; 1222 } 1223 1224 switch (Type) { 1225 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL ); 1226 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD ); 1227 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC); 1228 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP ); 1229 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE ); 1230 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB ); 1231 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR ); 1232 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS ); 1233 1234 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME); 1235 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND); 1236 1237 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK); 1238 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO); 1239 1240 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE); 1241 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED); 1242 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA); 1243 1244 default: return ""; 1245 } 1246 } 1247 1248 static std::string getElfPtType(unsigned Arch, unsigned Type) { 1249 switch (Type) { 1250 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL) 1251 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD) 1252 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC) 1253 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP) 1254 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE) 1255 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB) 1256 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR) 1257 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS) 1258 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME) 1259 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND) 1260 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK) 1261 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO) 1262 default: 1263 // All machine specific PT_* types 1264 switch (Arch) { 1265 case ELF::EM_ARM: 1266 if (Type == ELF::PT_ARM_EXIDX) 1267 return "EXIDX"; 1268 break; 1269 case ELF::EM_MIPS: 1270 case ELF::EM_MIPS_RS3_LE: 1271 switch (Type) { 1272 case PT_MIPS_REGINFO: 1273 return "REGINFO"; 1274 case PT_MIPS_RTPROC: 1275 return "RTPROC"; 1276 case PT_MIPS_OPTIONS: 1277 return "OPTIONS"; 1278 case PT_MIPS_ABIFLAGS: 1279 return "ABIFLAGS"; 1280 } 1281 break; 1282 } 1283 } 1284 return std::string("<unknown>: ") + to_string(format_hex(Type, 1)); 1285 } 1286 1287 static const EnumEntry<unsigned> ElfSegmentFlags[] = { 1288 LLVM_READOBJ_ENUM_ENT(ELF, PF_X), 1289 LLVM_READOBJ_ENUM_ENT(ELF, PF_W), 1290 LLVM_READOBJ_ENUM_ENT(ELF, PF_R) 1291 }; 1292 1293 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = { 1294 ENUM_ENT(EF_MIPS_NOREORDER, "noreorder"), 1295 ENUM_ENT(EF_MIPS_PIC, "pic"), 1296 ENUM_ENT(EF_MIPS_CPIC, "cpic"), 1297 ENUM_ENT(EF_MIPS_ABI2, "abi2"), 1298 ENUM_ENT(EF_MIPS_32BITMODE, "32bitmode"), 1299 ENUM_ENT(EF_MIPS_FP64, "fp64"), 1300 ENUM_ENT(EF_MIPS_NAN2008, "nan2008"), 1301 ENUM_ENT(EF_MIPS_ABI_O32, "o32"), 1302 ENUM_ENT(EF_MIPS_ABI_O64, "o64"), 1303 ENUM_ENT(EF_MIPS_ABI_EABI32, "eabi32"), 1304 ENUM_ENT(EF_MIPS_ABI_EABI64, "eabi64"), 1305 ENUM_ENT(EF_MIPS_MACH_3900, "3900"), 1306 ENUM_ENT(EF_MIPS_MACH_4010, "4010"), 1307 ENUM_ENT(EF_MIPS_MACH_4100, "4100"), 1308 ENUM_ENT(EF_MIPS_MACH_4650, "4650"), 1309 ENUM_ENT(EF_MIPS_MACH_4120, "4120"), 1310 ENUM_ENT(EF_MIPS_MACH_4111, "4111"), 1311 ENUM_ENT(EF_MIPS_MACH_SB1, "sb1"), 1312 ENUM_ENT(EF_MIPS_MACH_OCTEON, "octeon"), 1313 ENUM_ENT(EF_MIPS_MACH_XLR, "xlr"), 1314 ENUM_ENT(EF_MIPS_MACH_OCTEON2, "octeon2"), 1315 ENUM_ENT(EF_MIPS_MACH_OCTEON3, "octeon3"), 1316 ENUM_ENT(EF_MIPS_MACH_5400, "5400"), 1317 ENUM_ENT(EF_MIPS_MACH_5900, "5900"), 1318 ENUM_ENT(EF_MIPS_MACH_5500, "5500"), 1319 ENUM_ENT(EF_MIPS_MACH_9000, "9000"), 1320 ENUM_ENT(EF_MIPS_MACH_LS2E, "loongson-2e"), 1321 ENUM_ENT(EF_MIPS_MACH_LS2F, "loongson-2f"), 1322 ENUM_ENT(EF_MIPS_MACH_LS3A, "loongson-3a"), 1323 ENUM_ENT(EF_MIPS_MICROMIPS, "micromips"), 1324 ENUM_ENT(EF_MIPS_ARCH_ASE_M16, "mips16"), 1325 ENUM_ENT(EF_MIPS_ARCH_ASE_MDMX, "mdmx"), 1326 ENUM_ENT(EF_MIPS_ARCH_1, "mips1"), 1327 ENUM_ENT(EF_MIPS_ARCH_2, "mips2"), 1328 ENUM_ENT(EF_MIPS_ARCH_3, "mips3"), 1329 ENUM_ENT(EF_MIPS_ARCH_4, "mips4"), 1330 ENUM_ENT(EF_MIPS_ARCH_5, "mips5"), 1331 ENUM_ENT(EF_MIPS_ARCH_32, "mips32"), 1332 ENUM_ENT(EF_MIPS_ARCH_64, "mips64"), 1333 ENUM_ENT(EF_MIPS_ARCH_32R2, "mips32r2"), 1334 ENUM_ENT(EF_MIPS_ARCH_64R2, "mips64r2"), 1335 ENUM_ENT(EF_MIPS_ARCH_32R6, "mips32r6"), 1336 ENUM_ENT(EF_MIPS_ARCH_64R6, "mips64r6") 1337 }; 1338 1339 static const EnumEntry<unsigned> ElfHeaderAMDGPUFlags[] = { 1340 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_NONE), 1341 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R600), 1342 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R630), 1343 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RS880), 1344 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV670), 1345 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV710), 1346 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV730), 1347 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV770), 1348 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CEDAR), 1349 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CYPRESS), 1350 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_JUNIPER), 1351 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_REDWOOD), 1352 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_SUMO), 1353 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_BARTS), 1354 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAICOS), 1355 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAYMAN), 1356 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_TURKS), 1357 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX600), 1358 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX601), 1359 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX700), 1360 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX701), 1361 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX702), 1362 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX703), 1363 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX704), 1364 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX801), 1365 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX802), 1366 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX803), 1367 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX810), 1368 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX900), 1369 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX902), 1370 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX904), 1371 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX906), 1372 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX909), 1373 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_XNACK), 1374 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_SRAM_ECC) 1375 }; 1376 1377 static const EnumEntry<unsigned> ElfHeaderRISCVFlags[] = { 1378 ENUM_ENT(EF_RISCV_RVC, "RVC"), 1379 ENUM_ENT(EF_RISCV_FLOAT_ABI_SINGLE, "single-float ABI"), 1380 ENUM_ENT(EF_RISCV_FLOAT_ABI_DOUBLE, "double-float ABI"), 1381 ENUM_ENT(EF_RISCV_FLOAT_ABI_QUAD, "quad-float ABI"), 1382 ENUM_ENT(EF_RISCV_RVE, "RVE") 1383 }; 1384 1385 static const EnumEntry<unsigned> ElfSymOtherFlags[] = { 1386 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL), 1387 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN), 1388 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED) 1389 }; 1390 1391 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = { 1392 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1393 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1394 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC), 1395 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS) 1396 }; 1397 1398 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = { 1399 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1400 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1401 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16) 1402 }; 1403 1404 static const char *getElfMipsOptionsOdkType(unsigned Odk) { 1405 switch (Odk) { 1406 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL); 1407 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO); 1408 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS); 1409 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD); 1410 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH); 1411 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL); 1412 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS); 1413 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND); 1414 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR); 1415 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP); 1416 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT); 1417 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE); 1418 default: 1419 return "Unknown"; 1420 } 1421 } 1422 1423 template <typename ELFT> 1424 ELFDumper<ELFT>::ELFDumper(const object::ELFObjectFile<ELFT> *ObjF, 1425 ScopedPrinter &Writer) 1426 : ObjDumper(Writer), ObjF(ObjF) { 1427 SmallVector<const Elf_Phdr *, 4> LoadSegments; 1428 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 1429 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 1430 if (Phdr.p_type == ELF::PT_DYNAMIC) { 1431 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn)); 1432 continue; 1433 } 1434 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0) 1435 continue; 1436 LoadSegments.push_back(&Phdr); 1437 } 1438 1439 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1440 switch (Sec.sh_type) { 1441 case ELF::SHT_SYMTAB: 1442 if (DotSymtabSec != nullptr) 1443 reportError("Multiple SHT_SYMTAB"); 1444 DotSymtabSec = &Sec; 1445 break; 1446 case ELF::SHT_DYNSYM: 1447 if (DynSymRegion.Size) 1448 reportError("Multiple SHT_DYNSYM"); 1449 DynSymRegion = createDRIFrom(&Sec); 1450 // This is only used (if Elf_Shdr present)for naming section in GNU style 1451 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec)); 1452 DynamicStringTable = unwrapOrError(Obj->getStringTableForSymtab(Sec)); 1453 break; 1454 case ELF::SHT_SYMTAB_SHNDX: 1455 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec)); 1456 break; 1457 case ELF::SHT_GNU_versym: 1458 if (dot_gnu_version_sec != nullptr) 1459 reportError("Multiple SHT_GNU_versym"); 1460 dot_gnu_version_sec = &Sec; 1461 break; 1462 case ELF::SHT_GNU_verdef: 1463 if (dot_gnu_version_d_sec != nullptr) 1464 reportError("Multiple SHT_GNU_verdef"); 1465 dot_gnu_version_d_sec = &Sec; 1466 break; 1467 case ELF::SHT_GNU_verneed: 1468 if (dot_gnu_version_r_sec != nullptr) 1469 reportError("Multiple SHT_GNU_verneed"); 1470 dot_gnu_version_r_sec = &Sec; 1471 break; 1472 case ELF::SHT_LLVM_CALL_GRAPH_PROFILE: 1473 if (DotCGProfileSec != nullptr) 1474 reportError("Multiple .llvm.call-graph-profile"); 1475 DotCGProfileSec = &Sec; 1476 break; 1477 case ELF::SHT_LLVM_ADDRSIG: 1478 if (DotAddrsigSec != nullptr) 1479 reportError("Multiple .llvm_addrsig"); 1480 DotAddrsigSec = &Sec; 1481 break; 1482 } 1483 } 1484 1485 parseDynamicTable(LoadSegments); 1486 1487 if (opts::Output == opts::GNU) 1488 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this)); 1489 else 1490 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this)); 1491 } 1492 1493 template <typename ELFT> 1494 void ELFDumper<ELFT>::parseDynamicTable( 1495 ArrayRef<const Elf_Phdr *> LoadSegments) { 1496 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * { 1497 auto MappedAddrOrError = ObjF->getELFFile()->toMappedAddr(VAddr); 1498 if (!MappedAddrOrError) 1499 report_fatal_error(MappedAddrOrError.takeError()); 1500 return MappedAddrOrError.get(); 1501 }; 1502 1503 uint64_t SONameOffset = 0; 1504 const char *StringTableBegin = nullptr; 1505 uint64_t StringTableSize = 0; 1506 for (const Elf_Dyn &Dyn : dynamic_table()) { 1507 switch (Dyn.d_tag) { 1508 case ELF::DT_HASH: 1509 HashTable = 1510 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr())); 1511 break; 1512 case ELF::DT_GNU_HASH: 1513 GnuHashTable = 1514 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr())); 1515 break; 1516 case ELF::DT_STRTAB: 1517 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr()); 1518 break; 1519 case ELF::DT_STRSZ: 1520 StringTableSize = Dyn.getVal(); 1521 break; 1522 case ELF::DT_SYMTAB: 1523 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr()); 1524 DynSymRegion.EntSize = sizeof(Elf_Sym); 1525 break; 1526 case ELF::DT_RELA: 1527 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr()); 1528 break; 1529 case ELF::DT_RELASZ: 1530 DynRelaRegion.Size = Dyn.getVal(); 1531 break; 1532 case ELF::DT_RELAENT: 1533 DynRelaRegion.EntSize = Dyn.getVal(); 1534 break; 1535 case ELF::DT_SONAME: 1536 SONameOffset = Dyn.getVal(); 1537 break; 1538 case ELF::DT_REL: 1539 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1540 break; 1541 case ELF::DT_RELSZ: 1542 DynRelRegion.Size = Dyn.getVal(); 1543 break; 1544 case ELF::DT_RELENT: 1545 DynRelRegion.EntSize = Dyn.getVal(); 1546 break; 1547 case ELF::DT_RELR: 1548 case ELF::DT_ANDROID_RELR: 1549 DynRelrRegion.Addr = toMappedAddr(Dyn.getPtr()); 1550 break; 1551 case ELF::DT_RELRSZ: 1552 case ELF::DT_ANDROID_RELRSZ: 1553 DynRelrRegion.Size = Dyn.getVal(); 1554 break; 1555 case ELF::DT_RELRENT: 1556 case ELF::DT_ANDROID_RELRENT: 1557 DynRelrRegion.EntSize = Dyn.getVal(); 1558 break; 1559 case ELF::DT_PLTREL: 1560 if (Dyn.getVal() == DT_REL) 1561 DynPLTRelRegion.EntSize = sizeof(Elf_Rel); 1562 else if (Dyn.getVal() == DT_RELA) 1563 DynPLTRelRegion.EntSize = sizeof(Elf_Rela); 1564 else 1565 reportError(Twine("unknown DT_PLTREL value of ") + 1566 Twine((uint64_t)Dyn.getVal())); 1567 break; 1568 case ELF::DT_JMPREL: 1569 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1570 break; 1571 case ELF::DT_PLTRELSZ: 1572 DynPLTRelRegion.Size = Dyn.getVal(); 1573 break; 1574 } 1575 } 1576 if (StringTableBegin) 1577 DynamicStringTable = StringRef(StringTableBegin, StringTableSize); 1578 if (SONameOffset) 1579 SOName = getDynamicString(SONameOffset); 1580 } 1581 1582 template <typename ELFT> 1583 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const { 1584 return DynRelRegion.getAsArrayRef<Elf_Rel>(); 1585 } 1586 1587 template <typename ELFT> 1588 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const { 1589 return DynRelaRegion.getAsArrayRef<Elf_Rela>(); 1590 } 1591 1592 template <typename ELFT> 1593 typename ELFDumper<ELFT>::Elf_Relr_Range ELFDumper<ELFT>::dyn_relrs() const { 1594 return DynRelrRegion.getAsArrayRef<Elf_Relr>(); 1595 } 1596 1597 template<class ELFT> 1598 void ELFDumper<ELFT>::printFileHeaders() { 1599 ELFDumperStyle->printFileHeaders(ObjF->getELFFile()); 1600 } 1601 1602 template<class ELFT> 1603 void ELFDumper<ELFT>::printSectionHeaders() { 1604 ELFDumperStyle->printSectionHeaders(ObjF->getELFFile()); 1605 } 1606 1607 template<class ELFT> 1608 void ELFDumper<ELFT>::printRelocations() { 1609 ELFDumperStyle->printRelocations(ObjF->getELFFile()); 1610 } 1611 1612 template <class ELFT> 1613 void ELFDumper<ELFT>::printProgramHeaders( 1614 bool PrintProgramHeaders, cl::boolOrDefault PrintSectionMapping) { 1615 ELFDumperStyle->printProgramHeaders(ObjF->getELFFile(), PrintProgramHeaders, 1616 PrintSectionMapping); 1617 } 1618 1619 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() { 1620 ELFDumperStyle->printDynamicRelocations(ObjF->getELFFile()); 1621 } 1622 1623 template <class ELFT> 1624 void ELFDumper<ELFT>::printSymbols(bool PrintSymbols, 1625 bool PrintDynamicSymbols) { 1626 ELFDumperStyle->printSymbols(ObjF->getELFFile(), PrintSymbols, 1627 PrintDynamicSymbols); 1628 } 1629 1630 template<class ELFT> 1631 void ELFDumper<ELFT>::printHashSymbols() { 1632 ELFDumperStyle->printHashSymbols(ObjF->getELFFile()); 1633 } 1634 1635 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() { 1636 ELFDumperStyle->printHashHistogram(ObjF->getELFFile()); 1637 } 1638 1639 template <class ELFT> void ELFDumper<ELFT>::printCGProfile() { 1640 ELFDumperStyle->printCGProfile(ObjF->getELFFile()); 1641 } 1642 1643 template <class ELFT> void ELFDumper<ELFT>::printNotes() { 1644 ELFDumperStyle->printNotes(ObjF->getELFFile()); 1645 } 1646 1647 template <class ELFT> void ELFDumper<ELFT>::printELFLinkerOptions() { 1648 ELFDumperStyle->printELFLinkerOptions(ObjF->getELFFile()); 1649 } 1650 1651 static const char *getTypeString(unsigned Arch, uint64_t Type) { 1652 #define DYNAMIC_TAG(n, v) 1653 switch (Arch) { 1654 case EM_HEXAGON: 1655 switch (Type) { 1656 #define HEXAGON_DYNAMIC_TAG(name, value) \ 1657 case DT_##name: \ 1658 return #name; 1659 #include "llvm/BinaryFormat/DynamicTags.def" 1660 #undef HEXAGON_DYNAMIC_TAG 1661 } 1662 break; 1663 1664 case EM_MIPS: 1665 switch (Type) { 1666 #define MIPS_DYNAMIC_TAG(name, value) \ 1667 case DT_##name: \ 1668 return #name; 1669 #include "llvm/BinaryFormat/DynamicTags.def" 1670 #undef MIPS_DYNAMIC_TAG 1671 } 1672 break; 1673 1674 case EM_PPC64: 1675 switch(Type) { 1676 #define PPC64_DYNAMIC_TAG(name, value) \ 1677 case DT_##name: \ 1678 return #name; 1679 #include "llvm/BinaryFormat/DynamicTags.def" 1680 #undef PPC64_DYNAMIC_TAG 1681 } 1682 break; 1683 } 1684 #undef DYNAMIC_TAG 1685 switch (Type) { 1686 // Now handle all dynamic tags except the architecture specific ones 1687 #define MIPS_DYNAMIC_TAG(name, value) 1688 #define HEXAGON_DYNAMIC_TAG(name, value) 1689 #define PPC64_DYNAMIC_TAG(name, value) 1690 // Also ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc. 1691 #define DYNAMIC_TAG_MARKER(name, value) 1692 #define DYNAMIC_TAG(name, value) \ 1693 case DT_##name: \ 1694 return #name; 1695 #include "llvm/BinaryFormat/DynamicTags.def" 1696 #undef DYNAMIC_TAG 1697 #undef MIPS_DYNAMIC_TAG 1698 #undef HEXAGON_DYNAMIC_TAG 1699 #undef PPC64_DYNAMIC_TAG 1700 #undef DYNAMIC_TAG_MARKER 1701 default: return "unknown"; 1702 } 1703 } 1704 1705 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \ 1706 { #enum, prefix##_##enum } 1707 1708 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = { 1709 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN), 1710 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC), 1711 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL), 1712 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW), 1713 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS) 1714 }; 1715 1716 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = { 1717 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW), 1718 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL), 1719 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP), 1720 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE), 1721 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR), 1722 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST), 1723 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN), 1724 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN), 1725 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT), 1726 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS), 1727 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE), 1728 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB), 1729 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP), 1730 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT), 1731 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE), 1732 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE), 1733 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT), 1734 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF), 1735 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS), 1736 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR), 1737 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED), 1738 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC), 1739 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE), 1740 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT), 1741 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON) 1742 }; 1743 1744 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = { 1745 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE), 1746 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART), 1747 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT), 1748 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT), 1749 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE), 1750 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY), 1751 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT), 1752 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS), 1753 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT), 1754 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE), 1755 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD), 1756 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART), 1757 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED), 1758 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD), 1759 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF), 1760 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE) 1761 }; 1762 1763 #undef LLVM_READOBJ_DT_FLAG_ENT 1764 1765 template <typename T, typename TFlag> 1766 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) { 1767 using FlagEntry = EnumEntry<TFlag>; 1768 using FlagVector = SmallVector<FlagEntry, 10>; 1769 FlagVector SetFlags; 1770 1771 for (const auto &Flag : Flags) { 1772 if (Flag.Value == 0) 1773 continue; 1774 1775 if ((Value & Flag.Value) == Flag.Value) 1776 SetFlags.push_back(Flag); 1777 } 1778 1779 for (const auto &Flag : SetFlags) { 1780 OS << Flag.Name << " "; 1781 } 1782 } 1783 1784 template <class ELFT> 1785 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const { 1786 if (Value >= DynamicStringTable.size()) 1787 reportError("Invalid dynamic string table reference"); 1788 return StringRef(DynamicStringTable.data() + Value); 1789 } 1790 1791 static void printLibrary(raw_ostream &OS, const Twine &Tag, const Twine &Name) { 1792 OS << Tag << ": [" << Name << "]"; 1793 } 1794 1795 template <class ELFT> 1796 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { 1797 raw_ostream &OS = W.getOStream(); 1798 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64; 1799 switch (Type) { 1800 case DT_PLTREL: 1801 if (Value == DT_REL) { 1802 OS << "REL"; 1803 break; 1804 } else if (Value == DT_RELA) { 1805 OS << "RELA"; 1806 break; 1807 } 1808 LLVM_FALLTHROUGH; 1809 case DT_PLTGOT: 1810 case DT_HASH: 1811 case DT_STRTAB: 1812 case DT_SYMTAB: 1813 case DT_RELA: 1814 case DT_INIT: 1815 case DT_FINI: 1816 case DT_REL: 1817 case DT_JMPREL: 1818 case DT_INIT_ARRAY: 1819 case DT_FINI_ARRAY: 1820 case DT_PREINIT_ARRAY: 1821 case DT_DEBUG: 1822 case DT_VERDEF: 1823 case DT_VERNEED: 1824 case DT_VERSYM: 1825 case DT_GNU_HASH: 1826 case DT_NULL: 1827 case DT_MIPS_BASE_ADDRESS: 1828 case DT_MIPS_GOTSYM: 1829 case DT_MIPS_RLD_MAP: 1830 case DT_MIPS_RLD_MAP_REL: 1831 case DT_MIPS_PLTGOT: 1832 case DT_MIPS_OPTIONS: 1833 OS << format(ConvChar, Value); 1834 break; 1835 case DT_RELACOUNT: 1836 case DT_RELCOUNT: 1837 case DT_VERDEFNUM: 1838 case DT_VERNEEDNUM: 1839 case DT_MIPS_RLD_VERSION: 1840 case DT_MIPS_LOCAL_GOTNO: 1841 case DT_MIPS_SYMTABNO: 1842 case DT_MIPS_UNREFEXTNO: 1843 OS << Value; 1844 break; 1845 case DT_PLTRELSZ: 1846 case DT_RELASZ: 1847 case DT_RELAENT: 1848 case DT_STRSZ: 1849 case DT_SYMENT: 1850 case DT_RELSZ: 1851 case DT_RELENT: 1852 case DT_INIT_ARRAYSZ: 1853 case DT_FINI_ARRAYSZ: 1854 case DT_PREINIT_ARRAYSZ: 1855 case DT_ANDROID_RELSZ: 1856 case DT_ANDROID_RELASZ: 1857 OS << Value << " (bytes)"; 1858 break; 1859 case DT_NEEDED: 1860 printLibrary(OS, "Shared library", getDynamicString(Value)); 1861 break; 1862 case DT_SONAME: 1863 printLibrary(OS, "Library soname", getDynamicString(Value)); 1864 break; 1865 case DT_AUXILIARY: 1866 printLibrary(OS, "Auxiliary library", getDynamicString(Value)); 1867 break; 1868 case DT_FILTER: 1869 printLibrary(OS, "Filter library", getDynamicString(Value)); 1870 break; 1871 case DT_RPATH: 1872 case DT_RUNPATH: 1873 OS << getDynamicString(Value); 1874 break; 1875 case DT_MIPS_FLAGS: 1876 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS); 1877 break; 1878 case DT_FLAGS: 1879 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS); 1880 break; 1881 case DT_FLAGS_1: 1882 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS); 1883 break; 1884 default: 1885 OS << format(ConvChar, Value); 1886 break; 1887 } 1888 } 1889 1890 template<class ELFT> 1891 void ELFDumper<ELFT>::printUnwindInfo() { 1892 const unsigned Machine = ObjF->getELFFile()->getHeader()->e_machine; 1893 if (Machine == EM_386 || Machine == EM_X86_64) { 1894 DwarfCFIEH::PrinterContext<ELFT> Ctx(W, ObjF); 1895 return Ctx.printUnwindInformation(); 1896 } 1897 W.startLine() << "UnwindInfo not implemented.\n"; 1898 } 1899 1900 namespace { 1901 1902 template <> void ELFDumper<ELF32LE>::printUnwindInfo() { 1903 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile(); 1904 const unsigned Machine = Obj->getHeader()->e_machine; 1905 if (Machine == EM_ARM) { 1906 ARM::EHABI::PrinterContext<ELF32LE> Ctx(W, Obj, DotSymtabSec); 1907 return Ctx.PrintUnwindInformation(); 1908 } 1909 W.startLine() << "UnwindInfo not implemented.\n"; 1910 } 1911 1912 } // end anonymous namespace 1913 1914 template<class ELFT> 1915 void ELFDumper<ELFT>::printDynamicTable() { 1916 auto I = dynamic_table().begin(); 1917 auto E = dynamic_table().end(); 1918 1919 if (I == E) 1920 return; 1921 1922 --E; 1923 while (I != E && E->getTag() == ELF::DT_NULL) 1924 --E; 1925 if (E->getTag() != ELF::DT_NULL) 1926 ++E; 1927 ++E; 1928 1929 ptrdiff_t Total = std::distance(I, E); 1930 if (Total == 0) 1931 return; 1932 1933 raw_ostream &OS = W.getOStream(); 1934 W.startLine() << "DynamicSection [ (" << Total << " entries)\n"; 1935 1936 bool Is64 = ELFT::Is64Bits; 1937 1938 W.startLine() 1939 << " Tag" << (Is64 ? " " : " ") << "Type" 1940 << " " << "Name/Value\n"; 1941 while (I != E) { 1942 const Elf_Dyn &Entry = *I; 1943 uintX_t Tag = Entry.getTag(); 1944 ++I; 1945 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " " 1946 << format("%-21s", getTypeString(ObjF->getELFFile()->getHeader()->e_machine, Tag)); 1947 printValue(Tag, Entry.getVal()); 1948 OS << "\n"; 1949 } 1950 1951 W.startLine() << "]\n"; 1952 } 1953 1954 template<class ELFT> 1955 void ELFDumper<ELFT>::printNeededLibraries() { 1956 ListScope D(W, "NeededLibraries"); 1957 1958 using LibsTy = std::vector<StringRef>; 1959 LibsTy Libs; 1960 1961 for (const auto &Entry : dynamic_table()) 1962 if (Entry.d_tag == ELF::DT_NEEDED) 1963 Libs.push_back(getDynamicString(Entry.d_un.d_val)); 1964 1965 std::stable_sort(Libs.begin(), Libs.end()); 1966 1967 for (const auto &L : Libs) 1968 W.startLine() << L << "\n"; 1969 } 1970 1971 1972 template <typename ELFT> 1973 void ELFDumper<ELFT>::printHashTable() { 1974 DictScope D(W, "HashTable"); 1975 if (!HashTable) 1976 return; 1977 W.printNumber("Num Buckets", HashTable->nbucket); 1978 W.printNumber("Num Chains", HashTable->nchain); 1979 W.printList("Buckets", HashTable->buckets()); 1980 W.printList("Chains", HashTable->chains()); 1981 } 1982 1983 template <typename ELFT> 1984 void ELFDumper<ELFT>::printGnuHashTable() { 1985 DictScope D(W, "GnuHashTable"); 1986 if (!GnuHashTable) 1987 return; 1988 W.printNumber("Num Buckets", GnuHashTable->nbuckets); 1989 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx); 1990 W.printNumber("Num Mask Words", GnuHashTable->maskwords); 1991 W.printNumber("Shift Count", GnuHashTable->shift2); 1992 W.printHexList("Bloom Filter", GnuHashTable->filter()); 1993 W.printList("Buckets", GnuHashTable->buckets()); 1994 Elf_Sym_Range Syms = dynamic_symbols(); 1995 unsigned NumSyms = std::distance(Syms.begin(), Syms.end()); 1996 if (!NumSyms) 1997 reportError("No dynamic symbol section"); 1998 W.printHexList("Values", GnuHashTable->values(NumSyms)); 1999 } 2000 2001 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() { 2002 W.printString("LoadName", SOName); 2003 } 2004 2005 template <class ELFT> 2006 void ELFDumper<ELFT>::printAttributes() { 2007 W.startLine() << "Attributes not implemented.\n"; 2008 } 2009 2010 namespace { 2011 2012 template <> void ELFDumper<ELF32LE>::printAttributes() { 2013 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile(); 2014 if (Obj->getHeader()->e_machine != EM_ARM) { 2015 W.startLine() << "Attributes not implemented.\n"; 2016 return; 2017 } 2018 2019 DictScope BA(W, "BuildAttributes"); 2020 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2021 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES) 2022 continue; 2023 2024 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec)); 2025 if (Contents[0] != ARMBuildAttrs::Format_Version) { 2026 errs() << "unrecognised FormatVersion: 0x" 2027 << Twine::utohexstr(Contents[0]) << '\n'; 2028 continue; 2029 } 2030 2031 W.printHex("FormatVersion", Contents[0]); 2032 if (Contents.size() == 1) 2033 continue; 2034 2035 ARMAttributeParser(&W).Parse(Contents, true); 2036 } 2037 } 2038 2039 template <class ELFT> class MipsGOTParser { 2040 public: 2041 TYPEDEF_ELF_TYPES(ELFT) 2042 using Entry = typename ELFO::Elf_Addr; 2043 using Entries = ArrayRef<Entry>; 2044 2045 const bool IsStatic; 2046 const ELFO * const Obj; 2047 2048 MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, Elf_Sym_Range DynSyms); 2049 2050 bool hasGot() const { return !GotEntries.empty(); } 2051 bool hasPlt() const { return !PltEntries.empty(); } 2052 2053 uint64_t getGp() const; 2054 2055 const Entry *getGotLazyResolver() const; 2056 const Entry *getGotModulePointer() const; 2057 const Entry *getPltLazyResolver() const; 2058 const Entry *getPltModulePointer() const; 2059 2060 Entries getLocalEntries() const; 2061 Entries getGlobalEntries() const; 2062 Entries getOtherEntries() const; 2063 Entries getPltEntries() const; 2064 2065 uint64_t getGotAddress(const Entry * E) const; 2066 int64_t getGotOffset(const Entry * E) const; 2067 const Elf_Sym *getGotSym(const Entry *E) const; 2068 2069 uint64_t getPltAddress(const Entry * E) const; 2070 const Elf_Sym *getPltSym(const Entry *E) const; 2071 2072 StringRef getPltStrTable() const { return PltStrTable; } 2073 2074 private: 2075 const Elf_Shdr *GotSec; 2076 size_t LocalNum; 2077 size_t GlobalNum; 2078 2079 const Elf_Shdr *PltSec; 2080 const Elf_Shdr *PltRelSec; 2081 const Elf_Shdr *PltSymTable; 2082 Elf_Sym_Range GotDynSyms; 2083 StringRef PltStrTable; 2084 2085 Entries GotEntries; 2086 Entries PltEntries; 2087 }; 2088 2089 } // end anonymous namespace 2090 2091 template <class ELFT> 2092 MipsGOTParser<ELFT>::MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, 2093 Elf_Sym_Range DynSyms) 2094 : IsStatic(DynTable.empty()), Obj(Obj), GotSec(nullptr), LocalNum(0), 2095 GlobalNum(0), PltSec(nullptr), PltRelSec(nullptr), PltSymTable(nullptr) { 2096 // See "Global Offset Table" in Chapter 5 in the following document 2097 // for detailed GOT description. 2098 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf 2099 2100 // Find static GOT secton. 2101 if (IsStatic) { 2102 GotSec = findSectionByName(*Obj, ".got"); 2103 if (!GotSec) 2104 reportError("Cannot find .got section"); 2105 2106 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2107 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2108 Content.size() / sizeof(Entry)); 2109 LocalNum = GotEntries.size(); 2110 return; 2111 } 2112 2113 // Lookup dynamic table tags which define GOT/PLT layouts. 2114 Optional<uint64_t> DtPltGot; 2115 Optional<uint64_t> DtLocalGotNum; 2116 Optional<uint64_t> DtGotSym; 2117 Optional<uint64_t> DtMipsPltGot; 2118 Optional<uint64_t> DtJmpRel; 2119 for (const auto &Entry : DynTable) { 2120 switch (Entry.getTag()) { 2121 case ELF::DT_PLTGOT: 2122 DtPltGot = Entry.getVal(); 2123 break; 2124 case ELF::DT_MIPS_LOCAL_GOTNO: 2125 DtLocalGotNum = Entry.getVal(); 2126 break; 2127 case ELF::DT_MIPS_GOTSYM: 2128 DtGotSym = Entry.getVal(); 2129 break; 2130 case ELF::DT_MIPS_PLTGOT: 2131 DtMipsPltGot = Entry.getVal(); 2132 break; 2133 case ELF::DT_JMPREL: 2134 DtJmpRel = Entry.getVal(); 2135 break; 2136 } 2137 } 2138 2139 // Find dynamic GOT section. 2140 if (DtPltGot || DtLocalGotNum || DtGotSym) { 2141 if (!DtPltGot) 2142 report_fatal_error("Cannot find PLTGOT dynamic table tag."); 2143 if (!DtLocalGotNum) 2144 report_fatal_error("Cannot find MIPS_LOCAL_GOTNO dynamic table tag."); 2145 if (!DtGotSym) 2146 report_fatal_error("Cannot find MIPS_GOTSYM dynamic table tag."); 2147 2148 size_t DynSymTotal = DynSyms.size(); 2149 if (*DtGotSym > DynSymTotal) 2150 reportError("MIPS_GOTSYM exceeds a number of dynamic symbols"); 2151 2152 GotSec = findNotEmptySectionByAddress(Obj, *DtPltGot); 2153 if (!GotSec) 2154 reportError("There is no not empty GOT section at 0x" + 2155 Twine::utohexstr(*DtPltGot)); 2156 2157 LocalNum = *DtLocalGotNum; 2158 GlobalNum = DynSymTotal - *DtGotSym; 2159 2160 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2161 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2162 Content.size() / sizeof(Entry)); 2163 GotDynSyms = DynSyms.drop_front(*DtGotSym); 2164 } 2165 2166 // Find PLT section. 2167 if (DtMipsPltGot || DtJmpRel) { 2168 if (!DtMipsPltGot) 2169 report_fatal_error("Cannot find MIPS_PLTGOT dynamic table tag."); 2170 if (!DtJmpRel) 2171 report_fatal_error("Cannot find JMPREL dynamic table tag."); 2172 2173 PltSec = findNotEmptySectionByAddress(Obj, *DtMipsPltGot); 2174 if (!PltSec) 2175 report_fatal_error("There is no not empty PLTGOT section at 0x " + 2176 Twine::utohexstr(*DtMipsPltGot)); 2177 2178 PltRelSec = findNotEmptySectionByAddress(Obj, *DtJmpRel); 2179 if (!PltRelSec) 2180 report_fatal_error("There is no not empty RELPLT section at 0x" + 2181 Twine::utohexstr(*DtJmpRel)); 2182 2183 ArrayRef<uint8_t> PltContent = 2184 unwrapOrError(Obj->getSectionContents(PltSec)); 2185 PltEntries = Entries(reinterpret_cast<const Entry *>(PltContent.data()), 2186 PltContent.size() / sizeof(Entry)); 2187 2188 PltSymTable = unwrapOrError(Obj->getSection(PltRelSec->sh_link)); 2189 PltStrTable = unwrapOrError(Obj->getStringTableForSymtab(*PltSymTable)); 2190 } 2191 } 2192 2193 template <class ELFT> uint64_t MipsGOTParser<ELFT>::getGp() const { 2194 return GotSec->sh_addr + 0x7ff0; 2195 } 2196 2197 template <class ELFT> 2198 const typename MipsGOTParser<ELFT>::Entry * 2199 MipsGOTParser<ELFT>::getGotLazyResolver() const { 2200 return LocalNum > 0 ? &GotEntries[0] : nullptr; 2201 } 2202 2203 template <class ELFT> 2204 const typename MipsGOTParser<ELFT>::Entry * 2205 MipsGOTParser<ELFT>::getGotModulePointer() const { 2206 if (LocalNum < 2) 2207 return nullptr; 2208 const Entry &E = GotEntries[1]; 2209 if ((E >> (sizeof(Entry) * 8 - 1)) == 0) 2210 return nullptr; 2211 return &E; 2212 } 2213 2214 template <class ELFT> 2215 typename MipsGOTParser<ELFT>::Entries 2216 MipsGOTParser<ELFT>::getLocalEntries() const { 2217 size_t Skip = getGotModulePointer() ? 2 : 1; 2218 if (LocalNum - Skip <= 0) 2219 return Entries(); 2220 return GotEntries.slice(Skip, LocalNum - Skip); 2221 } 2222 2223 template <class ELFT> 2224 typename MipsGOTParser<ELFT>::Entries 2225 MipsGOTParser<ELFT>::getGlobalEntries() const { 2226 if (GlobalNum == 0) 2227 return Entries(); 2228 return GotEntries.slice(LocalNum, GlobalNum); 2229 } 2230 2231 template <class ELFT> 2232 typename MipsGOTParser<ELFT>::Entries 2233 MipsGOTParser<ELFT>::getOtherEntries() const { 2234 size_t OtherNum = GotEntries.size() - LocalNum - GlobalNum; 2235 if (OtherNum == 0) 2236 return Entries(); 2237 return GotEntries.slice(LocalNum + GlobalNum, OtherNum); 2238 } 2239 2240 template <class ELFT> 2241 uint64_t MipsGOTParser<ELFT>::getGotAddress(const Entry *E) const { 2242 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2243 return GotSec->sh_addr + Offset; 2244 } 2245 2246 template <class ELFT> 2247 int64_t MipsGOTParser<ELFT>::getGotOffset(const Entry *E) const { 2248 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2249 return Offset - 0x7ff0; 2250 } 2251 2252 template <class ELFT> 2253 const typename MipsGOTParser<ELFT>::Elf_Sym * 2254 MipsGOTParser<ELFT>::getGotSym(const Entry *E) const { 2255 int64_t Offset = std::distance(GotEntries.data(), E); 2256 return &GotDynSyms[Offset - LocalNum]; 2257 } 2258 2259 template <class ELFT> 2260 const typename MipsGOTParser<ELFT>::Entry * 2261 MipsGOTParser<ELFT>::getPltLazyResolver() const { 2262 return PltEntries.empty() ? nullptr : &PltEntries[0]; 2263 } 2264 2265 template <class ELFT> 2266 const typename MipsGOTParser<ELFT>::Entry * 2267 MipsGOTParser<ELFT>::getPltModulePointer() const { 2268 return PltEntries.size() < 2 ? nullptr : &PltEntries[1]; 2269 } 2270 2271 template <class ELFT> 2272 typename MipsGOTParser<ELFT>::Entries 2273 MipsGOTParser<ELFT>::getPltEntries() const { 2274 if (PltEntries.size() <= 2) 2275 return Entries(); 2276 return PltEntries.slice(2, PltEntries.size() - 2); 2277 } 2278 2279 template <class ELFT> 2280 uint64_t MipsGOTParser<ELFT>::getPltAddress(const Entry *E) const { 2281 int64_t Offset = std::distance(PltEntries.data(), E) * sizeof(Entry); 2282 return PltSec->sh_addr + Offset; 2283 } 2284 2285 template <class ELFT> 2286 const typename MipsGOTParser<ELFT>::Elf_Sym * 2287 MipsGOTParser<ELFT>::getPltSym(const Entry *E) const { 2288 int64_t Offset = std::distance(getPltEntries().data(), E); 2289 if (PltRelSec->sh_type == ELF::SHT_REL) { 2290 Elf_Rel_Range Rels = unwrapOrError(Obj->rels(PltRelSec)); 2291 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2292 } else { 2293 Elf_Rela_Range Rels = unwrapOrError(Obj->relas(PltRelSec)); 2294 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2295 } 2296 } 2297 2298 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() { 2299 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2300 if (Obj->getHeader()->e_machine != EM_MIPS) 2301 reportError("MIPS PLT GOT is available for MIPS targets only"); 2302 2303 MipsGOTParser<ELFT> Parser(Obj, dynamic_table(), dynamic_symbols()); 2304 if (Parser.hasGot()) 2305 ELFDumperStyle->printMipsGOT(Parser); 2306 if (Parser.hasPlt()) 2307 ELFDumperStyle->printMipsPLT(Parser); 2308 } 2309 2310 static const EnumEntry<unsigned> ElfMipsISAExtType[] = { 2311 {"None", Mips::AFL_EXT_NONE}, 2312 {"Broadcom SB-1", Mips::AFL_EXT_SB1}, 2313 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON}, 2314 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2}, 2315 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP}, 2316 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3}, 2317 {"LSI R4010", Mips::AFL_EXT_4010}, 2318 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E}, 2319 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F}, 2320 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A}, 2321 {"MIPS R4650", Mips::AFL_EXT_4650}, 2322 {"MIPS R5900", Mips::AFL_EXT_5900}, 2323 {"MIPS R10000", Mips::AFL_EXT_10000}, 2324 {"NEC VR4100", Mips::AFL_EXT_4100}, 2325 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111}, 2326 {"NEC VR4120", Mips::AFL_EXT_4120}, 2327 {"NEC VR5400", Mips::AFL_EXT_5400}, 2328 {"NEC VR5500", Mips::AFL_EXT_5500}, 2329 {"RMI Xlr", Mips::AFL_EXT_XLR}, 2330 {"Toshiba R3900", Mips::AFL_EXT_3900} 2331 }; 2332 2333 static const EnumEntry<unsigned> ElfMipsASEFlags[] = { 2334 {"DSP", Mips::AFL_ASE_DSP}, 2335 {"DSPR2", Mips::AFL_ASE_DSPR2}, 2336 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA}, 2337 {"MCU", Mips::AFL_ASE_MCU}, 2338 {"MDMX", Mips::AFL_ASE_MDMX}, 2339 {"MIPS-3D", Mips::AFL_ASE_MIPS3D}, 2340 {"MT", Mips::AFL_ASE_MT}, 2341 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS}, 2342 {"VZ", Mips::AFL_ASE_VIRT}, 2343 {"MSA", Mips::AFL_ASE_MSA}, 2344 {"MIPS16", Mips::AFL_ASE_MIPS16}, 2345 {"microMIPS", Mips::AFL_ASE_MICROMIPS}, 2346 {"XPA", Mips::AFL_ASE_XPA}, 2347 {"CRC", Mips::AFL_ASE_CRC}, 2348 {"GINV", Mips::AFL_ASE_GINV}, 2349 }; 2350 2351 static const EnumEntry<unsigned> ElfMipsFpABIType[] = { 2352 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY}, 2353 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE}, 2354 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE}, 2355 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT}, 2356 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)", 2357 Mips::Val_GNU_MIPS_ABI_FP_OLD_64}, 2358 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX}, 2359 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64}, 2360 {"Hard float compat (32-bit CPU, 64-bit FPU)", 2361 Mips::Val_GNU_MIPS_ABI_FP_64A} 2362 }; 2363 2364 static const EnumEntry<unsigned> ElfMipsFlags1[] { 2365 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG}, 2366 }; 2367 2368 static int getMipsRegisterSize(uint8_t Flag) { 2369 switch (Flag) { 2370 case Mips::AFL_REG_NONE: 2371 return 0; 2372 case Mips::AFL_REG_32: 2373 return 32; 2374 case Mips::AFL_REG_64: 2375 return 64; 2376 case Mips::AFL_REG_128: 2377 return 128; 2378 default: 2379 return -1; 2380 } 2381 } 2382 2383 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { 2384 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2385 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags"); 2386 if (!Shdr) { 2387 W.startLine() << "There is no .MIPS.abiflags section in the file.\n"; 2388 return; 2389 } 2390 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2391 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) { 2392 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n"; 2393 return; 2394 } 2395 2396 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data()); 2397 2398 raw_ostream &OS = W.getOStream(); 2399 DictScope GS(W, "MIPS ABI Flags"); 2400 2401 W.printNumber("Version", Flags->version); 2402 W.startLine() << "ISA: "; 2403 if (Flags->isa_rev <= 1) 2404 OS << format("MIPS%u", Flags->isa_level); 2405 else 2406 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev); 2407 OS << "\n"; 2408 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType)); 2409 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags)); 2410 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType)); 2411 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size)); 2412 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size)); 2413 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size)); 2414 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1)); 2415 W.printHex("Flags 2", Flags->flags2); 2416 } 2417 2418 template <class ELFT> 2419 static void printMipsReginfoData(ScopedPrinter &W, 2420 const Elf_Mips_RegInfo<ELFT> &Reginfo) { 2421 W.printHex("GP", Reginfo.ri_gp_value); 2422 W.printHex("General Mask", Reginfo.ri_gprmask); 2423 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]); 2424 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]); 2425 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]); 2426 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]); 2427 } 2428 2429 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() { 2430 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2431 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo"); 2432 if (!Shdr) { 2433 W.startLine() << "There is no .reginfo section in the file.\n"; 2434 return; 2435 } 2436 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2437 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) { 2438 W.startLine() << "The .reginfo section has a wrong size.\n"; 2439 return; 2440 } 2441 2442 DictScope GS(W, "MIPS RegInfo"); 2443 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data()); 2444 printMipsReginfoData(W, *Reginfo); 2445 } 2446 2447 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() { 2448 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2449 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options"); 2450 if (!Shdr) { 2451 W.startLine() << "There is no .MIPS.options section in the file.\n"; 2452 return; 2453 } 2454 2455 DictScope GS(W, "MIPS Options"); 2456 2457 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2458 while (!Sec.empty()) { 2459 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) { 2460 W.startLine() << "The .MIPS.options section has a wrong size.\n"; 2461 return; 2462 } 2463 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data()); 2464 DictScope GS(W, getElfMipsOptionsOdkType(O->kind)); 2465 switch (O->kind) { 2466 case ODK_REGINFO: 2467 printMipsReginfoData(W, O->getRegInfo()); 2468 break; 2469 default: 2470 W.startLine() << "Unsupported MIPS options tag.\n"; 2471 break; 2472 } 2473 Sec = Sec.slice(O->size); 2474 } 2475 } 2476 2477 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const { 2478 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2479 const Elf_Shdr *StackMapSection = nullptr; 2480 for (const auto &Sec : unwrapOrError(Obj->sections())) { 2481 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2482 if (Name == ".llvm_stackmaps") { 2483 StackMapSection = &Sec; 2484 break; 2485 } 2486 } 2487 2488 if (!StackMapSection) 2489 return; 2490 2491 ArrayRef<uint8_t> StackMapContentsArray = 2492 unwrapOrError(Obj->getSectionContents(StackMapSection)); 2493 2494 prettyPrintStackMap( 2495 W, StackMapV2Parser<ELFT::TargetEndianness>(StackMapContentsArray)); 2496 } 2497 2498 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() { 2499 ELFDumperStyle->printGroupSections(ObjF->getELFFile()); 2500 } 2501 2502 template <class ELFT> void ELFDumper<ELFT>::printAddrsig() { 2503 ELFDumperStyle->printAddrsig(ObjF->getELFFile()); 2504 } 2505 2506 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1, 2507 StringRef Str2) { 2508 OS.PadToColumn(2u); 2509 OS << Str1; 2510 OS.PadToColumn(37u); 2511 OS << Str2 << "\n"; 2512 OS.flush(); 2513 } 2514 2515 template <class ELFT> 2516 static std::string getSectionHeadersNumString(const ELFFile<ELFT> *Obj) { 2517 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2518 if (ElfHeader->e_shnum != 0) 2519 return to_string(ElfHeader->e_shnum); 2520 2521 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2522 if (Arr.empty()) 2523 return "0"; 2524 return "0 (" + to_string(Arr[0].sh_size) + ")"; 2525 } 2526 2527 template <class ELFT> 2528 static std::string getSectionHeaderTableIndexString(const ELFFile<ELFT> *Obj) { 2529 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2530 if (ElfHeader->e_shstrndx != SHN_XINDEX) 2531 return to_string(ElfHeader->e_shstrndx); 2532 2533 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2534 if (Arr.empty()) 2535 return "65535 (corrupt: out of range)"; 2536 return to_string(ElfHeader->e_shstrndx) + " (" + to_string(Arr[0].sh_link) + ")"; 2537 } 2538 2539 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 2540 const Elf_Ehdr *e = Obj->getHeader(); 2541 OS << "ELF Header:\n"; 2542 OS << " Magic: "; 2543 std::string Str; 2544 for (int i = 0; i < ELF::EI_NIDENT; i++) 2545 OS << format(" %02x", static_cast<int>(e->e_ident[i])); 2546 OS << "\n"; 2547 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 2548 printFields(OS, "Class:", Str); 2549 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding)); 2550 printFields(OS, "Data:", Str); 2551 OS.PadToColumn(2u); 2552 OS << "Version:"; 2553 OS.PadToColumn(37u); 2554 OS << to_hexString(e->e_ident[ELF::EI_VERSION]); 2555 if (e->e_version == ELF::EV_CURRENT) 2556 OS << " (current)"; 2557 OS << "\n"; 2558 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI)); 2559 printFields(OS, "OS/ABI:", Str); 2560 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]); 2561 printFields(OS, "ABI Version:", Str); 2562 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType)); 2563 printFields(OS, "Type:", Str); 2564 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType)); 2565 printFields(OS, "Machine:", Str); 2566 Str = "0x" + to_hexString(e->e_version); 2567 printFields(OS, "Version:", Str); 2568 Str = "0x" + to_hexString(e->e_entry); 2569 printFields(OS, "Entry point address:", Str); 2570 Str = to_string(e->e_phoff) + " (bytes into file)"; 2571 printFields(OS, "Start of program headers:", Str); 2572 Str = to_string(e->e_shoff) + " (bytes into file)"; 2573 printFields(OS, "Start of section headers:", Str); 2574 std::string ElfFlags; 2575 if (e->e_machine == EM_MIPS) 2576 ElfFlags = 2577 printFlags(e->e_flags, makeArrayRef(ElfHeaderMipsFlags), 2578 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 2579 unsigned(ELF::EF_MIPS_MACH)); 2580 else if (e->e_machine == EM_RISCV) 2581 ElfFlags = printFlags(e->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); 2582 Str = "0x" + to_hexString(e->e_flags); 2583 if (!ElfFlags.empty()) 2584 Str = Str + ", " + ElfFlags; 2585 printFields(OS, "Flags:", Str); 2586 Str = to_string(e->e_ehsize) + " (bytes)"; 2587 printFields(OS, "Size of this header:", Str); 2588 Str = to_string(e->e_phentsize) + " (bytes)"; 2589 printFields(OS, "Size of program headers:", Str); 2590 Str = to_string(e->e_phnum); 2591 printFields(OS, "Number of program headers:", Str); 2592 Str = to_string(e->e_shentsize) + " (bytes)"; 2593 printFields(OS, "Size of section headers:", Str); 2594 Str = getSectionHeadersNumString(Obj); 2595 printFields(OS, "Number of section headers:", Str); 2596 Str = getSectionHeaderTableIndexString(Obj); 2597 printFields(OS, "Section header string table index:", Str); 2598 } 2599 2600 namespace { 2601 struct GroupMember { 2602 StringRef Name; 2603 uint64_t Index; 2604 }; 2605 2606 struct GroupSection { 2607 StringRef Name; 2608 std::string Signature; 2609 uint64_t ShName; 2610 uint64_t Index; 2611 uint32_t Link; 2612 uint32_t Info; 2613 uint32_t Type; 2614 std::vector<GroupMember> Members; 2615 }; 2616 2617 template <class ELFT> 2618 std::vector<GroupSection> getGroups(const ELFFile<ELFT> *Obj) { 2619 using Elf_Shdr = typename ELFT::Shdr; 2620 using Elf_Sym = typename ELFT::Sym; 2621 using Elf_Word = typename ELFT::Word; 2622 2623 std::vector<GroupSection> Ret; 2624 uint64_t I = 0; 2625 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2626 ++I; 2627 if (Sec.sh_type != ELF::SHT_GROUP) 2628 continue; 2629 2630 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2631 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 2632 const Elf_Sym *Sym = 2633 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 2634 auto Data = 2635 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 2636 2637 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2638 StringRef Signature = StrTable.data() + Sym->st_name; 2639 Ret.push_back({Name, 2640 maybeDemangle(Signature), 2641 Sec.sh_name, 2642 I - 1, 2643 Sec.sh_link, 2644 Sec.sh_info, 2645 Data[0], 2646 {}}); 2647 2648 std::vector<GroupMember> &GM = Ret.back().Members; 2649 for (uint32_t Ndx : Data.slice(1)) { 2650 auto Sec = unwrapOrError(Obj->getSection(Ndx)); 2651 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 2652 GM.push_back({Name, Ndx}); 2653 } 2654 } 2655 return Ret; 2656 } 2657 2658 DenseMap<uint64_t, const GroupSection *> 2659 mapSectionsToGroups(ArrayRef<GroupSection> Groups) { 2660 DenseMap<uint64_t, const GroupSection *> Ret; 2661 for (const GroupSection &G : Groups) 2662 for (const GroupMember &GM : G.Members) 2663 Ret.insert({GM.Index, &G}); 2664 return Ret; 2665 } 2666 2667 } // namespace 2668 2669 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) { 2670 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 2671 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 2672 for (const GroupSection &G : V) { 2673 OS << "\n" 2674 << getGroupType(G.Type) << " group section [" 2675 << format_decimal(G.Index, 5) << "] `" << G.Name << "' [" << G.Signature 2676 << "] contains " << G.Members.size() << " sections:\n" 2677 << " [Index] Name\n"; 2678 for (const GroupMember &GM : G.Members) { 2679 const GroupSection *MainGroup = Map[GM.Index]; 2680 if (MainGroup != &G) { 2681 OS.flush(); 2682 errs() << "Error: section [" << format_decimal(GM.Index, 5) 2683 << "] in group section [" << format_decimal(G.Index, 5) 2684 << "] already in group section [" 2685 << format_decimal(MainGroup->Index, 5) << "]"; 2686 errs().flush(); 2687 continue; 2688 } 2689 OS << " [" << format_decimal(GM.Index, 5) << "] " << GM.Name << "\n"; 2690 } 2691 } 2692 2693 if (V.empty()) 2694 OS << "There are no section groups in this file.\n"; 2695 } 2696 2697 template <class ELFT> 2698 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 2699 const Elf_Rela &R, bool IsRela) { 2700 // First two fields are bit width dependent. The rest of them are after are 2701 // fixed width. 2702 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 2703 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 2704 SmallString<32> RelocName; 2705 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 2706 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab)); 2707 std::string TargetName; 2708 if (Sym && Sym->getType() == ELF::STT_SECTION) { 2709 const Elf_Shdr *Sec = unwrapOrError( 2710 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 2711 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 2712 } else if (Sym) { 2713 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 2714 TargetName = maybeDemangle(unwrapOrError(Sym->getName(StrTable))); 2715 } 2716 2717 unsigned Width = ELFT::Is64Bits ? 16 : 8; 2718 Fields[0].Str = to_string(format_hex_no_prefix(R.r_offset, Width)); 2719 Fields[1].Str = to_string(format_hex_no_prefix(R.r_info, Width)); 2720 Fields[2].Str = RelocName.str(); 2721 if (Sym) 2722 Fields[3].Str = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 2723 Fields[4].Str = TargetName; 2724 for (auto &F : Fields) 2725 printField(F); 2726 2727 std::string Addend; 2728 if (Sym && IsRela) { 2729 if (R.r_addend < 0) 2730 Addend = " - "; 2731 else 2732 Addend = " + "; 2733 } 2734 2735 if (IsRela) 2736 Addend += to_hexString(std::abs(R.r_addend), false); 2737 OS << Addend << "\n"; 2738 } 2739 2740 template <class ELFT> void GNUStyle<ELFT>::printRelocHeader(unsigned SType) { 2741 bool IsRela = SType == ELF::SHT_RELA || SType == ELF::SHT_ANDROID_RELA; 2742 bool IsRelr = SType == ELF::SHT_RELR || SType == ELF::SHT_ANDROID_RELR; 2743 if (ELFT::Is64Bits) 2744 OS << " "; 2745 else 2746 OS << " "; 2747 if (IsRelr && opts::RawRelr) 2748 OS << "Data "; 2749 else 2750 OS << "Offset"; 2751 if (ELFT::Is64Bits) 2752 OS << " Info Type" 2753 << " Symbol's Value Symbol's Name"; 2754 else 2755 OS << " Info Type Sym. Value Symbol's Name"; 2756 if (IsRela) 2757 OS << " + Addend"; 2758 OS << "\n"; 2759 } 2760 2761 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) { 2762 bool HasRelocSections = false; 2763 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2764 if (Sec.sh_type != ELF::SHT_REL && 2765 Sec.sh_type != ELF::SHT_RELA && 2766 Sec.sh_type != ELF::SHT_RELR && 2767 Sec.sh_type != ELF::SHT_ANDROID_REL && 2768 Sec.sh_type != ELF::SHT_ANDROID_RELA && 2769 Sec.sh_type != ELF::SHT_ANDROID_RELR) 2770 continue; 2771 HasRelocSections = true; 2772 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2773 unsigned Entries = Sec.getEntityCount(); 2774 std::vector<Elf_Rela> AndroidRelas; 2775 if (Sec.sh_type == ELF::SHT_ANDROID_REL || 2776 Sec.sh_type == ELF::SHT_ANDROID_RELA) { 2777 // Android's packed relocation section needs to be unpacked first 2778 // to get the actual number of entries. 2779 AndroidRelas = unwrapOrError(Obj->android_relas(&Sec)); 2780 Entries = AndroidRelas.size(); 2781 } 2782 std::vector<Elf_Rela> RelrRelas; 2783 if (!opts::RawRelr && (Sec.sh_type == ELF::SHT_RELR || 2784 Sec.sh_type == ELF::SHT_ANDROID_RELR)) { 2785 // .relr.dyn relative relocation section needs to be unpacked first 2786 // to get the actual number of entries. 2787 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(&Sec)); 2788 RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 2789 Entries = RelrRelas.size(); 2790 } 2791 uintX_t Offset = Sec.sh_offset; 2792 OS << "\nRelocation section '" << Name << "' at offset 0x" 2793 << to_hexString(Offset, false) << " contains " << Entries 2794 << " entries:\n"; 2795 printRelocHeader(Sec.sh_type); 2796 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2797 switch (Sec.sh_type) { 2798 case ELF::SHT_REL: 2799 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) { 2800 Elf_Rela Rela; 2801 Rela.r_offset = R.r_offset; 2802 Rela.r_info = R.r_info; 2803 Rela.r_addend = 0; 2804 printRelocation(Obj, SymTab, Rela, false); 2805 } 2806 break; 2807 case ELF::SHT_RELA: 2808 for (const auto &R : unwrapOrError(Obj->relas(&Sec))) 2809 printRelocation(Obj, SymTab, R, true); 2810 break; 2811 case ELF::SHT_RELR: 2812 case ELF::SHT_ANDROID_RELR: 2813 if (opts::RawRelr) 2814 for (const auto &R : unwrapOrError(Obj->relrs(&Sec))) 2815 OS << to_string(format_hex_no_prefix(R, ELFT::Is64Bits ? 16 : 8)) 2816 << "\n"; 2817 else 2818 for (const auto &R : RelrRelas) 2819 printRelocation(Obj, SymTab, R, false); 2820 break; 2821 case ELF::SHT_ANDROID_REL: 2822 case ELF::SHT_ANDROID_RELA: 2823 for (const auto &R : AndroidRelas) 2824 printRelocation(Obj, SymTab, R, Sec.sh_type == ELF::SHT_ANDROID_RELA); 2825 break; 2826 } 2827 } 2828 if (!HasRelocSections) 2829 OS << "\nThere are no relocations in this file.\n"; 2830 } 2831 2832 std::string getSectionTypeString(unsigned Arch, unsigned Type) { 2833 using namespace ELF; 2834 2835 switch (Arch) { 2836 case EM_ARM: 2837 switch (Type) { 2838 case SHT_ARM_EXIDX: 2839 return "ARM_EXIDX"; 2840 case SHT_ARM_PREEMPTMAP: 2841 return "ARM_PREEMPTMAP"; 2842 case SHT_ARM_ATTRIBUTES: 2843 return "ARM_ATTRIBUTES"; 2844 case SHT_ARM_DEBUGOVERLAY: 2845 return "ARM_DEBUGOVERLAY"; 2846 case SHT_ARM_OVERLAYSECTION: 2847 return "ARM_OVERLAYSECTION"; 2848 } 2849 break; 2850 case EM_X86_64: 2851 switch (Type) { 2852 case SHT_X86_64_UNWIND: 2853 return "X86_64_UNWIND"; 2854 } 2855 break; 2856 case EM_MIPS: 2857 case EM_MIPS_RS3_LE: 2858 switch (Type) { 2859 case SHT_MIPS_REGINFO: 2860 return "MIPS_REGINFO"; 2861 case SHT_MIPS_OPTIONS: 2862 return "MIPS_OPTIONS"; 2863 case SHT_MIPS_DWARF: 2864 return "MIPS_DWARF"; 2865 case SHT_MIPS_ABIFLAGS: 2866 return "MIPS_ABIFLAGS"; 2867 } 2868 break; 2869 } 2870 switch (Type) { 2871 case SHT_NULL: 2872 return "NULL"; 2873 case SHT_PROGBITS: 2874 return "PROGBITS"; 2875 case SHT_SYMTAB: 2876 return "SYMTAB"; 2877 case SHT_STRTAB: 2878 return "STRTAB"; 2879 case SHT_RELA: 2880 return "RELA"; 2881 case SHT_HASH: 2882 return "HASH"; 2883 case SHT_DYNAMIC: 2884 return "DYNAMIC"; 2885 case SHT_NOTE: 2886 return "NOTE"; 2887 case SHT_NOBITS: 2888 return "NOBITS"; 2889 case SHT_REL: 2890 return "REL"; 2891 case SHT_SHLIB: 2892 return "SHLIB"; 2893 case SHT_DYNSYM: 2894 return "DYNSYM"; 2895 case SHT_INIT_ARRAY: 2896 return "INIT_ARRAY"; 2897 case SHT_FINI_ARRAY: 2898 return "FINI_ARRAY"; 2899 case SHT_PREINIT_ARRAY: 2900 return "PREINIT_ARRAY"; 2901 case SHT_GROUP: 2902 return "GROUP"; 2903 case SHT_SYMTAB_SHNDX: 2904 return "SYMTAB SECTION INDICES"; 2905 case SHT_RELR: 2906 case SHT_ANDROID_RELR: 2907 return "RELR"; 2908 case SHT_LLVM_ODRTAB: 2909 return "LLVM_ODRTAB"; 2910 case SHT_LLVM_LINKER_OPTIONS: 2911 return "LLVM_LINKER_OPTIONS"; 2912 case SHT_LLVM_CALL_GRAPH_PROFILE: 2913 return "LLVM_CALL_GRAPH_PROFILE"; 2914 case SHT_LLVM_ADDRSIG: 2915 return "LLVM_ADDRSIG"; 2916 // FIXME: Parse processor specific GNU attributes 2917 case SHT_GNU_ATTRIBUTES: 2918 return "ATTRIBUTES"; 2919 case SHT_GNU_HASH: 2920 return "GNU_HASH"; 2921 case SHT_GNU_verdef: 2922 return "VERDEF"; 2923 case SHT_GNU_verneed: 2924 return "VERNEED"; 2925 case SHT_GNU_versym: 2926 return "VERSYM"; 2927 default: 2928 return ""; 2929 } 2930 return ""; 2931 } 2932 2933 template <class ELFT> 2934 void GNUStyle<ELFT>::printSectionHeaders(const ELFO *Obj) { 2935 unsigned Bias = ELFT::Is64Bits ? 0 : 8; 2936 ArrayRef<Elf_Shdr> Sections = unwrapOrError(Obj->sections()); 2937 OS << "There are " << to_string(Sections.size()) 2938 << " section headers, starting at offset " 2939 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n"; 2940 OS << "Section Headers:\n"; 2941 Field Fields[11] = { 2942 {"[Nr]", 2}, {"Name", 7}, {"Type", 25}, 2943 {"Address", 41}, {"Off", 58 - Bias}, {"Size", 65 - Bias}, 2944 {"ES", 72 - Bias}, {"Flg", 75 - Bias}, {"Lk", 79 - Bias}, 2945 {"Inf", 82 - Bias}, {"Al", 86 - Bias}}; 2946 for (auto &F : Fields) 2947 printField(F); 2948 OS << "\n"; 2949 2950 size_t SectionIndex = 0; 2951 for (const Elf_Shdr &Sec : Sections) { 2952 Fields[0].Str = to_string(SectionIndex); 2953 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec)); 2954 Fields[2].Str = 2955 getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type); 2956 Fields[3].Str = 2957 to_string(format_hex_no_prefix(Sec.sh_addr, ELFT::Is64Bits ? 16 : 8)); 2958 Fields[4].Str = to_string(format_hex_no_prefix(Sec.sh_offset, 6)); 2959 Fields[5].Str = to_string(format_hex_no_prefix(Sec.sh_size, 6)); 2960 Fields[6].Str = to_string(format_hex_no_prefix(Sec.sh_entsize, 2)); 2961 Fields[7].Str = getGNUFlags(Sec.sh_flags); 2962 Fields[8].Str = to_string(Sec.sh_link); 2963 Fields[9].Str = to_string(Sec.sh_info); 2964 Fields[10].Str = to_string(Sec.sh_addralign); 2965 2966 OS.PadToColumn(Fields[0].Column); 2967 OS << "[" << right_justify(Fields[0].Str, 2) << "]"; 2968 for (int i = 1; i < 7; i++) 2969 printField(Fields[i]); 2970 OS.PadToColumn(Fields[7].Column); 2971 OS << right_justify(Fields[7].Str, 3); 2972 OS.PadToColumn(Fields[8].Column); 2973 OS << right_justify(Fields[8].Str, 2); 2974 OS.PadToColumn(Fields[9].Column); 2975 OS << right_justify(Fields[9].Str, 3); 2976 OS.PadToColumn(Fields[10].Column); 2977 OS << right_justify(Fields[10].Str, 2); 2978 OS << "\n"; 2979 ++SectionIndex; 2980 } 2981 OS << "Key to Flags:\n" 2982 << " W (write), A (alloc), X (execute), M (merge), S (strings), l " 2983 "(large)\n" 2984 << " I (info), L (link order), G (group), T (TLS), E (exclude),\ 2985 x (unknown)\n" 2986 << " O (extra OS processing required) o (OS specific),\ 2987 p (processor specific)\n"; 2988 } 2989 2990 template <class ELFT> 2991 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name, 2992 size_t Entries) { 2993 if (!Name.empty()) 2994 OS << "\nSymbol table '" << Name << "' contains " << Entries 2995 << " entries:\n"; 2996 else 2997 OS << "\n Symbol table for image:\n"; 2998 2999 if (ELFT::Is64Bits) 3000 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 3001 else 3002 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 3003 } 3004 3005 template <class ELFT> 3006 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj, 3007 const Elf_Sym *Symbol, 3008 const Elf_Sym *FirstSym) { 3009 unsigned SectionIndex = Symbol->st_shndx; 3010 switch (SectionIndex) { 3011 case ELF::SHN_UNDEF: 3012 return "UND"; 3013 case ELF::SHN_ABS: 3014 return "ABS"; 3015 case ELF::SHN_COMMON: 3016 return "COM"; 3017 case ELF::SHN_XINDEX: 3018 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 3019 Symbol, FirstSym, this->dumper()->getShndxTable())); 3020 LLVM_FALLTHROUGH; 3021 default: 3022 // Find if: 3023 // Processor specific 3024 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC) 3025 return std::string("PRC[0x") + 3026 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 3027 // OS specific 3028 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS) 3029 return std::string("OS[0x") + 3030 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 3031 // Architecture reserved: 3032 if (SectionIndex >= ELF::SHN_LORESERVE && 3033 SectionIndex <= ELF::SHN_HIRESERVE) 3034 return std::string("RSV[0x") + 3035 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 3036 // A normal section with an index 3037 return to_string(format_decimal(SectionIndex, 3)); 3038 } 3039 } 3040 3041 template <class ELFT> 3042 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 3043 const Elf_Sym *FirstSym, StringRef StrTable, 3044 bool IsDynamic) { 3045 static int Idx = 0; 3046 static bool Dynamic = true; 3047 3048 // If this function was called with a different value from IsDynamic 3049 // from last call, happens when we move from dynamic to static symbol 3050 // table, "Num" field should be reset. 3051 if (!Dynamic != !IsDynamic) { 3052 Idx = 0; 3053 Dynamic = false; 3054 } 3055 3056 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3057 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias, 3058 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias}; 3059 Fields[0].Str = to_string(format_decimal(Idx++, 6)) + ":"; 3060 Fields[1].Str = to_string( 3061 format_hex_no_prefix(Symbol->st_value, ELFT::Is64Bits ? 16 : 8)); 3062 Fields[2].Str = to_string(format_decimal(Symbol->st_size, 5)); 3063 3064 unsigned char SymbolType = Symbol->getType(); 3065 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3066 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3067 Fields[3].Str = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3068 else 3069 Fields[3].Str = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3070 3071 Fields[4].Str = 3072 printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3073 Fields[5].Str = 3074 printEnum(Symbol->getVisibility(), makeArrayRef(ElfSymbolVisibilities)); 3075 Fields[6].Str = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3076 Fields[7].Str = 3077 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 3078 for (auto &Entry : Fields) 3079 printField(Entry); 3080 OS << "\n"; 3081 } 3082 3083 template <class ELFT> 3084 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, 3085 uint32_t Sym, StringRef StrTable, 3086 uint32_t Bucket) { 3087 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3088 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias, 3089 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias}; 3090 Fields[0].Str = to_string(format_decimal(Sym, 5)); 3091 Fields[1].Str = to_string(format_decimal(Bucket, 3)) + ":"; 3092 3093 const auto Symbol = FirstSym + Sym; 3094 Fields[2].Str = to_string( 3095 format_hex_no_prefix(Symbol->st_value, ELFT::Is64Bits ? 18 : 8)); 3096 Fields[3].Str = to_string(format_decimal(Symbol->st_size, 5)); 3097 3098 unsigned char SymbolType = Symbol->getType(); 3099 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3100 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3101 Fields[4].Str = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3102 else 3103 Fields[4].Str = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3104 3105 Fields[5].Str = 3106 printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3107 Fields[6].Str = 3108 printEnum(Symbol->getVisibility(), makeArrayRef(ElfSymbolVisibilities)); 3109 Fields[7].Str = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3110 Fields[8].Str = this->dumper()->getFullSymbolName(Symbol, StrTable, true); 3111 3112 for (auto &Entry : Fields) 3113 printField(Entry); 3114 OS << "\n"; 3115 } 3116 3117 template <class ELFT> 3118 void GNUStyle<ELFT>::printSymbols(const ELFO *Obj, bool PrintSymbols, 3119 bool PrintDynamicSymbols) { 3120 if (!PrintSymbols && !PrintDynamicSymbols) 3121 return; 3122 // GNU readelf prints both the .dynsym and .symtab with --symbols. 3123 this->dumper()->printSymbolsHelper(true); 3124 if (PrintSymbols) 3125 this->dumper()->printSymbolsHelper(false); 3126 } 3127 3128 template <class ELFT> void GNUStyle<ELFT>::printHashSymbols(const ELFO *Obj) { 3129 if (this->dumper()->getDynamicStringTable().empty()) 3130 return; 3131 auto StringTable = this->dumper()->getDynamicStringTable(); 3132 auto DynSyms = this->dumper()->dynamic_symbols(); 3133 3134 // Try printing .hash 3135 if (auto SysVHash = this->dumper()->getHashTable()) { 3136 OS << "\n Symbol table of .hash for image:\n"; 3137 if (ELFT::Is64Bits) 3138 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3139 else 3140 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3141 OS << "\n"; 3142 3143 auto Buckets = SysVHash->buckets(); 3144 auto Chains = SysVHash->chains(); 3145 for (uint32_t Buc = 0; Buc < SysVHash->nbucket; Buc++) { 3146 if (Buckets[Buc] == ELF::STN_UNDEF) 3147 continue; 3148 for (uint32_t Ch = Buckets[Buc]; Ch < SysVHash->nchain; Ch = Chains[Ch]) { 3149 if (Ch == ELF::STN_UNDEF) 3150 break; 3151 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc); 3152 } 3153 } 3154 } 3155 3156 // Try printing .gnu.hash 3157 if (auto GnuHash = this->dumper()->getGnuHashTable()) { 3158 OS << "\n Symbol table of .gnu.hash for image:\n"; 3159 if (ELFT::Is64Bits) 3160 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3161 else 3162 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3163 OS << "\n"; 3164 auto Buckets = GnuHash->buckets(); 3165 for (uint32_t Buc = 0; Buc < GnuHash->nbuckets; Buc++) { 3166 if (Buckets[Buc] == ELF::STN_UNDEF) 3167 continue; 3168 uint32_t Index = Buckets[Buc]; 3169 uint32_t GnuHashable = Index - GnuHash->symndx; 3170 // Print whole chain 3171 while (true) { 3172 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc); 3173 // Chain ends at symbol with stopper bit 3174 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1) 3175 break; 3176 } 3177 } 3178 } 3179 } 3180 3181 static inline std::string printPhdrFlags(unsigned Flag) { 3182 std::string Str; 3183 Str = (Flag & PF_R) ? "R" : " "; 3184 Str += (Flag & PF_W) ? "W" : " "; 3185 Str += (Flag & PF_X) ? "E" : " "; 3186 return Str; 3187 } 3188 3189 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO 3190 // PT_TLS must only have SHF_TLS sections 3191 template <class ELFT> 3192 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr, 3193 const Elf_Shdr &Sec) { 3194 return (((Sec.sh_flags & ELF::SHF_TLS) && 3195 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) || 3196 (Phdr.p_type == ELF::PT_GNU_RELRO))) || 3197 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS)); 3198 } 3199 3200 // Non-SHT_NOBITS must have its offset inside the segment 3201 // Only non-zero section can be at end of segment 3202 template <class ELFT> 3203 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3204 if (Sec.sh_type == ELF::SHT_NOBITS) 3205 return true; 3206 bool IsSpecial = 3207 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3208 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3209 auto SectionSize = 3210 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3211 if (Sec.sh_offset >= Phdr.p_offset) 3212 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset) 3213 /*only non-zero sized sections at end*/ && 3214 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz)); 3215 return false; 3216 } 3217 3218 // SHF_ALLOC must have VMA inside segment 3219 // Only non-zero section can be at end of segment 3220 template <class ELFT> 3221 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3222 if (!(Sec.sh_flags & ELF::SHF_ALLOC)) 3223 return true; 3224 bool IsSpecial = 3225 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3226 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3227 auto SectionSize = 3228 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3229 if (Sec.sh_addr >= Phdr.p_vaddr) 3230 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) && 3231 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz)); 3232 return false; 3233 } 3234 3235 // No section with zero size must be at start or end of PT_DYNAMIC 3236 template <class ELFT> 3237 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3238 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0) 3239 return true; 3240 // Is section within the phdr both based on offset and VMA ? 3241 return ((Sec.sh_type == ELF::SHT_NOBITS) || 3242 (Sec.sh_offset > Phdr.p_offset && 3243 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) && 3244 (!(Sec.sh_flags & ELF::SHF_ALLOC) || 3245 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz)); 3246 } 3247 3248 template <class ELFT> 3249 void GNUStyle<ELFT>::printProgramHeaders( 3250 const ELFO *Obj, bool PrintProgramHeaders, 3251 cl::boolOrDefault PrintSectionMapping) { 3252 if (PrintProgramHeaders) 3253 printProgramHeaders(Obj); 3254 3255 // Display the section mapping along with the program headers, unless 3256 // -section-mapping is explicitly set to false. 3257 if (PrintSectionMapping != cl::BOU_FALSE) 3258 printSectionMapping(Obj); 3259 } 3260 3261 template <class ELFT> 3262 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3263 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3264 const Elf_Ehdr *Header = Obj->getHeader(); 3265 Field Fields[8] = {2, 17, 26, 37 + Bias, 3266 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias}; 3267 OS << "\nElf file type is " 3268 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n" 3269 << "Entry point " << format_hex(Header->e_entry, 3) << "\n" 3270 << "There are " << Header->e_phnum << " program headers," 3271 << " starting at offset " << Header->e_phoff << "\n\n" 3272 << "Program Headers:\n"; 3273 if (ELFT::Is64Bits) 3274 OS << " Type Offset VirtAddr PhysAddr " 3275 << " FileSiz MemSiz Flg Align\n"; 3276 else 3277 OS << " Type Offset VirtAddr PhysAddr FileSiz " 3278 << "MemSiz Flg Align\n"; 3279 3280 unsigned Width = ELFT::Is64Bits ? 18 : 10; 3281 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7; 3282 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) { 3283 Fields[0].Str = getElfPtType(Header->e_machine, Phdr.p_type); 3284 Fields[1].Str = to_string(format_hex(Phdr.p_offset, 8)); 3285 Fields[2].Str = to_string(format_hex(Phdr.p_vaddr, Width)); 3286 Fields[3].Str = to_string(format_hex(Phdr.p_paddr, Width)); 3287 Fields[4].Str = to_string(format_hex(Phdr.p_filesz, SizeWidth)); 3288 Fields[5].Str = to_string(format_hex(Phdr.p_memsz, SizeWidth)); 3289 Fields[6].Str = printPhdrFlags(Phdr.p_flags); 3290 Fields[7].Str = to_string(format_hex(Phdr.p_align, 1)); 3291 for (auto Field : Fields) 3292 printField(Field); 3293 if (Phdr.p_type == ELF::PT_INTERP) { 3294 OS << "\n [Requesting program interpreter: "; 3295 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]"; 3296 } 3297 OS << "\n"; 3298 } 3299 } 3300 3301 template <class ELFT> 3302 void GNUStyle<ELFT>::printSectionMapping(const ELFO *Obj) { 3303 OS << "\n Section to Segment mapping:\n Segment Sections...\n"; 3304 DenseSet<const Elf_Shdr *> BelongsToSegment; 3305 int Phnum = 0; 3306 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3307 std::string Sections; 3308 OS << format(" %2.2d ", Phnum++); 3309 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3310 // Check if each section is in a segment and then print mapping. 3311 // readelf additionally makes sure it does not print zero sized sections 3312 // at end of segments and for PT_DYNAMIC both start and end of section 3313 // .tbss must only be shown in PT_TLS section. 3314 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) && 3315 ((Sec.sh_flags & ELF::SHF_TLS) != 0) && 3316 Phdr.p_type != ELF::PT_TLS; 3317 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) && 3318 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) && 3319 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) { 3320 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " "; 3321 BelongsToSegment.insert(&Sec); 3322 } 3323 } 3324 OS << Sections << "\n"; 3325 OS.flush(); 3326 } 3327 3328 // Display sections that do not belong to a segment. 3329 std::string Sections; 3330 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3331 if (BelongsToSegment.find(&Sec) == BelongsToSegment.end()) 3332 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + ' '; 3333 } 3334 if (!Sections.empty()) { 3335 OS << " None " << Sections << '\n'; 3336 OS.flush(); 3337 } 3338 } 3339 3340 template <class ELFT> 3341 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R, 3342 bool IsRela) { 3343 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3344 // First two fields are bit width dependent. The rest of them are after are 3345 // fixed width. 3346 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 3347 3348 unsigned Width = ELFT::Is64Bits ? 16 : 8; 3349 Fields[0].Str = to_string(format_hex_no_prefix(R.r_offset, Width)); 3350 Fields[1].Str = to_string(format_hex_no_prefix(R.r_info, Width)); 3351 3352 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL()); 3353 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3354 SmallString<32> RelocName; 3355 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 3356 Fields[2].Str = RelocName.c_str(); 3357 3358 std::string SymbolName = maybeDemangle( 3359 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()))); 3360 3361 if (!SymbolName.empty() || Sym->getValue() != 0) 3362 Fields[3].Str = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 3363 3364 Fields[4].Str = SymbolName; 3365 for (auto &Field : Fields) 3366 printField(Field); 3367 3368 int64_t RelAddend = R.r_addend; 3369 std::string Addend; 3370 if (!SymbolName.empty() && IsRela) { 3371 if (R.r_addend < 0) 3372 Addend = " - "; 3373 else 3374 Addend = " + "; 3375 } 3376 3377 if (IsRela) 3378 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1)); 3379 OS << Addend << "\n"; 3380 } 3381 3382 template <class ELFT> 3383 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3384 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3385 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3386 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 3387 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3388 if (DynRelaRegion.Size > 0) { 3389 OS << "\n'RELA' relocation section at offset " 3390 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) - 3391 Obj->base(), 3392 1) << " contains " << DynRelaRegion.Size << " bytes:\n"; 3393 printRelocHeader(ELF::SHT_RELA); 3394 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3395 printDynamicRelocation(Obj, Rela, true); 3396 } 3397 if (DynRelRegion.Size > 0) { 3398 OS << "\n'REL' relocation section at offset " 3399 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) - 3400 Obj->base(), 3401 1) << " contains " << DynRelRegion.Size << " bytes:\n"; 3402 printRelocHeader(ELF::SHT_REL); 3403 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3404 Elf_Rela Rela; 3405 Rela.r_offset = Rel.r_offset; 3406 Rela.r_info = Rel.r_info; 3407 Rela.r_addend = 0; 3408 printDynamicRelocation(Obj, Rela, false); 3409 } 3410 } 3411 if (DynRelrRegion.Size > 0) { 3412 OS << "\n'RELR' relocation section at offset " 3413 << format_hex(reinterpret_cast<const uint8_t *>(DynRelrRegion.Addr) - 3414 Obj->base(), 3415 1) << " contains " << DynRelrRegion.Size << " bytes:\n"; 3416 printRelocHeader(ELF::SHT_REL); 3417 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 3418 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 3419 for (const Elf_Rela &Rela : RelrRelas) { 3420 printDynamicRelocation(Obj, Rela, false); 3421 } 3422 } 3423 if (DynPLTRelRegion.Size) { 3424 OS << "\n'PLT' relocation section at offset " 3425 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) - 3426 Obj->base(), 3427 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n"; 3428 } 3429 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) { 3430 printRelocHeader(ELF::SHT_RELA); 3431 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3432 printDynamicRelocation(Obj, Rela, true); 3433 } else { 3434 printRelocHeader(ELF::SHT_REL); 3435 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3436 Elf_Rela Rela; 3437 Rela.r_offset = Rel.r_offset; 3438 Rela.r_info = Rel.r_info; 3439 Rela.r_addend = 0; 3440 printDynamicRelocation(Obj, Rela, false); 3441 } 3442 } 3443 } 3444 3445 // Hash histogram shows statistics of how efficient the hash was for the 3446 // dynamic symbol table. The table shows number of hash buckets for different 3447 // lengths of chains as absolute number and percentage of the total buckets. 3448 // Additionally cumulative coverage of symbols for each set of buckets. 3449 template <class ELFT> 3450 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3451 // Print histogram for .hash section 3452 if (const Elf_Hash *HashTable = this->dumper()->getHashTable()) { 3453 size_t NBucket = HashTable->nbucket; 3454 size_t NChain = HashTable->nchain; 3455 ArrayRef<Elf_Word> Buckets = HashTable->buckets(); 3456 ArrayRef<Elf_Word> Chains = HashTable->chains(); 3457 size_t TotalSyms = 0; 3458 // If hash table is correct, we have at least chains with 0 length 3459 size_t MaxChain = 1; 3460 size_t CumulativeNonZero = 0; 3461 3462 if (NChain == 0 || NBucket == 0) 3463 return; 3464 3465 std::vector<size_t> ChainLen(NBucket, 0); 3466 // Go over all buckets and and note chain lengths of each bucket (total 3467 // unique chain lengths). 3468 for (size_t B = 0; B < NBucket; B++) { 3469 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C]) 3470 if (MaxChain <= ++ChainLen[B]) 3471 MaxChain++; 3472 TotalSyms += ChainLen[B]; 3473 } 3474 3475 if (!TotalSyms) 3476 return; 3477 3478 std::vector<size_t> Count(MaxChain, 0) ; 3479 // Count how long is the chain for each bucket 3480 for (size_t B = 0; B < NBucket; B++) 3481 ++Count[ChainLen[B]]; 3482 // Print Number of buckets with each chain lengths and their cumulative 3483 // coverage of the symbols 3484 OS << "Histogram for bucket list length (total of " << NBucket 3485 << " buckets)\n" 3486 << " Length Number % of total Coverage\n"; 3487 for (size_t I = 0; I < MaxChain; I++) { 3488 CumulativeNonZero += Count[I] * I; 3489 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3490 (Count[I] * 100.0) / NBucket, 3491 (CumulativeNonZero * 100.0) / TotalSyms); 3492 } 3493 } 3494 3495 // Print histogram for .gnu.hash section 3496 if (const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable()) { 3497 size_t NBucket = GnuHashTable->nbuckets; 3498 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets(); 3499 unsigned NumSyms = this->dumper()->dynamic_symbols().size(); 3500 if (!NumSyms) 3501 return; 3502 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms); 3503 size_t Symndx = GnuHashTable->symndx; 3504 size_t TotalSyms = 0; 3505 size_t MaxChain = 1; 3506 size_t CumulativeNonZero = 0; 3507 3508 if (Chains.empty() || NBucket == 0) 3509 return; 3510 3511 std::vector<size_t> ChainLen(NBucket, 0); 3512 3513 for (size_t B = 0; B < NBucket; B++) { 3514 if (!Buckets[B]) 3515 continue; 3516 size_t Len = 1; 3517 for (size_t C = Buckets[B] - Symndx; 3518 C < Chains.size() && (Chains[C] & 1) == 0; C++) 3519 if (MaxChain < ++Len) 3520 MaxChain++; 3521 ChainLen[B] = Len; 3522 TotalSyms += Len; 3523 } 3524 MaxChain++; 3525 3526 if (!TotalSyms) 3527 return; 3528 3529 std::vector<size_t> Count(MaxChain, 0) ; 3530 for (size_t B = 0; B < NBucket; B++) 3531 ++Count[ChainLen[B]]; 3532 // Print Number of buckets with each chain lengths and their cumulative 3533 // coverage of the symbols 3534 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket 3535 << " buckets)\n" 3536 << " Length Number % of total Coverage\n"; 3537 for (size_t I = 0; I <MaxChain; I++) { 3538 CumulativeNonZero += Count[I] * I; 3539 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3540 (Count[I] * 100.0) / NBucket, 3541 (CumulativeNonZero * 100.0) / TotalSyms); 3542 } 3543 } 3544 } 3545 3546 template <class ELFT> 3547 void GNUStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 3548 OS << "GNUStyle::printCGProfile not implemented\n"; 3549 } 3550 3551 template <class ELFT> 3552 void GNUStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 3553 OS << "GNUStyle::printAddrsig not implemented\n"; 3554 } 3555 3556 static std::string getGNUNoteTypeName(const uint32_t NT) { 3557 static const struct { 3558 uint32_t ID; 3559 const char *Name; 3560 } Notes[] = { 3561 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"}, 3562 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"}, 3563 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"}, 3564 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"}, 3565 {ELF::NT_GNU_PROPERTY_TYPE_0, "NT_GNU_PROPERTY_TYPE_0 (property note)"}, 3566 }; 3567 3568 for (const auto &Note : Notes) 3569 if (Note.ID == NT) 3570 return std::string(Note.Name); 3571 3572 std::string string; 3573 raw_string_ostream OS(string); 3574 OS << format("Unknown note type (0x%08x)", NT); 3575 return OS.str(); 3576 } 3577 3578 static std::string getFreeBSDNoteTypeName(const uint32_t NT) { 3579 static const struct { 3580 uint32_t ID; 3581 const char *Name; 3582 } Notes[] = { 3583 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"}, 3584 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"}, 3585 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"}, 3586 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"}, 3587 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"}, 3588 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"}, 3589 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"}, 3590 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"}, 3591 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS, 3592 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"}, 3593 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"}, 3594 }; 3595 3596 for (const auto &Note : Notes) 3597 if (Note.ID == NT) 3598 return std::string(Note.Name); 3599 3600 std::string string; 3601 raw_string_ostream OS(string); 3602 OS << format("Unknown note type (0x%08x)", NT); 3603 return OS.str(); 3604 } 3605 3606 static std::string getAMDNoteTypeName(const uint32_t NT) { 3607 static const struct { 3608 uint32_t ID; 3609 const char *Name; 3610 } Notes[] = { 3611 {ELF::NT_AMD_AMDGPU_HSA_METADATA, 3612 "NT_AMD_AMDGPU_HSA_METADATA (HSA Metadata)"}, 3613 {ELF::NT_AMD_AMDGPU_ISA, 3614 "NT_AMD_AMDGPU_ISA (ISA Version)"}, 3615 {ELF::NT_AMD_AMDGPU_PAL_METADATA, 3616 "NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)"} 3617 }; 3618 3619 for (const auto &Note : Notes) 3620 if (Note.ID == NT) 3621 return std::string(Note.Name); 3622 3623 std::string string; 3624 raw_string_ostream OS(string); 3625 OS << format("Unknown note type (0x%08x)", NT); 3626 return OS.str(); 3627 } 3628 3629 static std::string getAMDGPUNoteTypeName(const uint32_t NT) { 3630 if (NT == ELF::NT_AMDGPU_METADATA) 3631 return std::string("NT_AMDGPU_METADATA (AMDGPU Metadata)"); 3632 3633 std::string string; 3634 raw_string_ostream OS(string); 3635 OS << format("Unknown note type (0x%08x)", NT); 3636 return OS.str(); 3637 } 3638 3639 template <typename ELFT> 3640 static std::string getGNUProperty(uint32_t Type, uint32_t DataSize, 3641 ArrayRef<uint8_t> Data) { 3642 std::string str; 3643 raw_string_ostream OS(str); 3644 uint32_t PrData; 3645 auto DumpBit = [&](uint32_t Flag, StringRef Name) { 3646 if (PrData & Flag) { 3647 PrData &= ~Flag; 3648 OS << Name; 3649 if (PrData) 3650 OS << ", "; 3651 } 3652 }; 3653 3654 switch (Type) { 3655 default: 3656 OS << format("<application-specific type 0x%x>", Type); 3657 return OS.str(); 3658 case GNU_PROPERTY_STACK_SIZE: { 3659 OS << "stack size: "; 3660 if (DataSize == sizeof(typename ELFT::uint)) 3661 OS << formatv("{0:x}", 3662 (uint64_t)(*(const typename ELFT::Addr *)Data.data())); 3663 else 3664 OS << format("<corrupt length: 0x%x>", DataSize); 3665 return OS.str(); 3666 } 3667 case GNU_PROPERTY_NO_COPY_ON_PROTECTED: 3668 OS << "no copy on protected"; 3669 if (DataSize) 3670 OS << format(" <corrupt length: 0x%x>", DataSize); 3671 return OS.str(); 3672 case GNU_PROPERTY_X86_FEATURE_1_AND: 3673 OS << "x86 feature: "; 3674 if (DataSize != 4) { 3675 OS << format("<corrupt length: 0x%x>", DataSize); 3676 return OS.str(); 3677 } 3678 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data()); 3679 if (PrData == 0) { 3680 OS << "<None>"; 3681 return OS.str(); 3682 } 3683 DumpBit(GNU_PROPERTY_X86_FEATURE_1_IBT, "IBT"); 3684 DumpBit(GNU_PROPERTY_X86_FEATURE_1_SHSTK, "SHSTK"); 3685 if (PrData) 3686 OS << format("<unknown flags: 0x%x>", PrData); 3687 return OS.str(); 3688 case GNU_PROPERTY_X86_ISA_1_NEEDED: 3689 case GNU_PROPERTY_X86_ISA_1_USED: 3690 OS << "x86 ISA " 3691 << (Type == GNU_PROPERTY_X86_ISA_1_NEEDED ? "needed: " : "used: "); 3692 if (DataSize != 4) { 3693 OS << format("<corrupt length: 0x%x>", DataSize); 3694 return OS.str(); 3695 } 3696 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data()); 3697 if (PrData == 0) { 3698 OS << "<None>"; 3699 return OS.str(); 3700 } 3701 DumpBit(GNU_PROPERTY_X86_ISA_1_CMOV, "CMOV"); 3702 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE, "SSE"); 3703 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE2, "SSE2"); 3704 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE3, "SSE3"); 3705 DumpBit(GNU_PROPERTY_X86_ISA_1_SSSE3, "SSSE3"); 3706 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_1, "SSE4_1"); 3707 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_2, "SSE4_2"); 3708 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX, "AVX"); 3709 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX2, "AVX2"); 3710 DumpBit(GNU_PROPERTY_X86_ISA_1_FMA, "FMA"); 3711 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512F, "AVX512F"); 3712 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512CD, "AVX512CD"); 3713 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512ER, "AVX512ER"); 3714 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512PF, "AVX512PF"); 3715 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512VL, "AVX512VL"); 3716 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512DQ, "AVX512DQ"); 3717 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512BW, "AVX512BW"); 3718 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS, "AVX512_4FMAPS"); 3719 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW, "AVX512_4VNNIW"); 3720 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_BITALG, "AVX512_BITALG"); 3721 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_IFMA, "AVX512_IFMA"); 3722 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI, "AVX512_VBMI"); 3723 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2, "AVX512_VBMI2"); 3724 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VNNI, "AVX512_VNNI"); 3725 if (PrData) 3726 OS << format("<unknown flags: 0x%x>", PrData); 3727 return OS.str(); 3728 break; 3729 case GNU_PROPERTY_X86_FEATURE_2_NEEDED: 3730 case GNU_PROPERTY_X86_FEATURE_2_USED: 3731 OS << "x86 feature " 3732 << (Type == GNU_PROPERTY_X86_FEATURE_2_NEEDED ? "needed: " : "used: "); 3733 if (DataSize != 4) { 3734 OS << format("<corrupt length: 0x%x>", DataSize); 3735 return OS.str(); 3736 } 3737 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data()); 3738 if (PrData == 0) { 3739 OS << "<None>"; 3740 return OS.str(); 3741 } 3742 DumpBit(GNU_PROPERTY_X86_FEATURE_2_X86, "x86"); 3743 DumpBit(GNU_PROPERTY_X86_FEATURE_2_X87, "x87"); 3744 DumpBit(GNU_PROPERTY_X86_FEATURE_2_MMX, "MMX"); 3745 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XMM, "XMM"); 3746 DumpBit(GNU_PROPERTY_X86_FEATURE_2_YMM, "YMM"); 3747 DumpBit(GNU_PROPERTY_X86_FEATURE_2_ZMM, "ZMM"); 3748 DumpBit(GNU_PROPERTY_X86_FEATURE_2_FXSR, "FXSR"); 3749 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVE, "XSAVE"); 3750 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT, "XSAVEOPT"); 3751 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVEC, "XSAVEC"); 3752 if (PrData) 3753 OS << format("<unknown flags: 0x%x>", PrData); 3754 return OS.str(); 3755 } 3756 } 3757 3758 template <typename ELFT> 3759 static SmallVector<std::string, 4> 3760 getGNUPropertyList(ArrayRef<uint8_t> Arr) { 3761 using Elf_Word = typename ELFT::Word; 3762 3763 SmallVector<std::string, 4> Properties; 3764 while (Arr.size() >= 8) { 3765 uint32_t Type = *reinterpret_cast<const Elf_Word *>(Arr.data()); 3766 uint32_t DataSize = *reinterpret_cast<const Elf_Word *>(Arr.data() + 4); 3767 Arr = Arr.drop_front(8); 3768 3769 // Take padding size into account if present. 3770 uint64_t PaddedSize = alignTo(DataSize, sizeof(typename ELFT::uint)); 3771 std::string str; 3772 raw_string_ostream OS(str); 3773 if (Arr.size() < PaddedSize) { 3774 OS << format("<corrupt type (0x%x) datasz: 0x%x>", Type, DataSize); 3775 Properties.push_back(OS.str()); 3776 break; 3777 } 3778 Properties.push_back( 3779 getGNUProperty<ELFT>(Type, DataSize, Arr.take_front(PaddedSize))); 3780 Arr = Arr.drop_front(PaddedSize); 3781 } 3782 3783 if (!Arr.empty()) 3784 Properties.push_back("<corrupted GNU_PROPERTY_TYPE_0>"); 3785 3786 return Properties; 3787 } 3788 3789 struct GNUAbiTag { 3790 std::string OSName; 3791 std::string ABI; 3792 bool IsValid; 3793 }; 3794 3795 template <typename ELFT> 3796 static GNUAbiTag getGNUAbiTag(ArrayRef<uint8_t> Desc) { 3797 typedef typename ELFT::Word Elf_Word; 3798 3799 ArrayRef<Elf_Word> Words(reinterpret_cast<const Elf_Word*>(Desc.begin()), 3800 reinterpret_cast<const Elf_Word*>(Desc.end())); 3801 3802 if (Words.size() < 4) 3803 return {"", "", /*IsValid=*/false}; 3804 3805 static const char *OSNames[] = { 3806 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl", 3807 }; 3808 StringRef OSName = "Unknown"; 3809 if (Words[0] < array_lengthof(OSNames)) 3810 OSName = OSNames[Words[0]]; 3811 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3]; 3812 std::string str; 3813 raw_string_ostream ABI(str); 3814 ABI << Major << "." << Minor << "." << Patch; 3815 return {OSName, ABI.str(), /*IsValid=*/true}; 3816 } 3817 3818 static std::string getGNUBuildId(ArrayRef<uint8_t> Desc) { 3819 std::string str; 3820 raw_string_ostream OS(str); 3821 for (const auto &B : Desc) 3822 OS << format_hex_no_prefix(B, 2); 3823 return OS.str(); 3824 } 3825 3826 static StringRef getGNUGoldVersion(ArrayRef<uint8_t> Desc) { 3827 return StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size()); 3828 } 3829 3830 template <typename ELFT> 3831 static void printGNUNote(raw_ostream &OS, uint32_t NoteType, 3832 ArrayRef<uint8_t> Desc) { 3833 switch (NoteType) { 3834 default: 3835 return; 3836 case ELF::NT_GNU_ABI_TAG: { 3837 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc); 3838 if (!AbiTag.IsValid) 3839 OS << " <corrupt GNU_ABI_TAG>"; 3840 else 3841 OS << " OS: " << AbiTag.OSName << ", ABI: " << AbiTag.ABI; 3842 break; 3843 } 3844 case ELF::NT_GNU_BUILD_ID: { 3845 OS << " Build ID: " << getGNUBuildId(Desc); 3846 break; 3847 } 3848 case ELF::NT_GNU_GOLD_VERSION: 3849 OS << " Version: " << getGNUGoldVersion(Desc); 3850 break; 3851 case ELF::NT_GNU_PROPERTY_TYPE_0: 3852 OS << " Properties:"; 3853 for (const auto &Property : getGNUPropertyList<ELFT>(Desc)) 3854 OS << " " << Property << "\n"; 3855 break; 3856 } 3857 OS << '\n'; 3858 } 3859 3860 struct AMDNote { 3861 std::string Type; 3862 std::string Value; 3863 }; 3864 3865 template <typename ELFT> 3866 static AMDNote getAMDNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) { 3867 switch (NoteType) { 3868 default: 3869 return {"", ""}; 3870 case ELF::NT_AMD_AMDGPU_HSA_METADATA: 3871 return {"HSA Metadata", 3872 std::string(reinterpret_cast<const char *>(Desc.data()), 3873 Desc.size())}; 3874 case ELF::NT_AMD_AMDGPU_ISA: 3875 return {"ISA Version", 3876 std::string(reinterpret_cast<const char *>(Desc.data()), 3877 Desc.size())}; 3878 case ELF::NT_AMD_AMDGPU_PAL_METADATA: 3879 const uint32_t *PALMetadataBegin = 3880 reinterpret_cast<const uint32_t *>(Desc.data()); 3881 const uint32_t *PALMetadataEnd = PALMetadataBegin + Desc.size(); 3882 std::vector<uint32_t> PALMetadata(PALMetadataBegin, PALMetadataEnd); 3883 std::string PALMetadataString; 3884 auto Error = AMDGPU::PALMD::toString(PALMetadata, PALMetadataString); 3885 if (Error) { 3886 return {"PAL Metadata", "Invalid"}; 3887 } 3888 return {"PAL Metadata", PALMetadataString}; 3889 } 3890 } 3891 3892 struct AMDGPUNote { 3893 std::string Type; 3894 std::string Value; 3895 }; 3896 3897 template <typename ELFT> 3898 static AMDGPUNote getAMDGPUNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) { 3899 switch (NoteType) { 3900 default: 3901 return {"", ""}; 3902 case ELF::NT_AMDGPU_METADATA: 3903 auto MsgPackString = 3904 StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size()); 3905 msgpack::Reader MsgPackReader(MsgPackString); 3906 auto OptMsgPackNodeOrErr = msgpack::Node::read(MsgPackReader); 3907 if (errorToBool(OptMsgPackNodeOrErr.takeError())) 3908 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; 3909 auto &OptMsgPackNode = *OptMsgPackNodeOrErr; 3910 if (!OptMsgPackNode) 3911 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; 3912 auto &MsgPackNode = *OptMsgPackNode; 3913 3914 AMDGPU::HSAMD::V3::MetadataVerifier Verifier(true); 3915 if (!Verifier.verify(*MsgPackNode)) 3916 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; 3917 3918 std::string HSAMetadataString; 3919 raw_string_ostream StrOS(HSAMetadataString); 3920 yaml::Output YOut(StrOS); 3921 YOut << MsgPackNode; 3922 3923 return {"AMDGPU Metadata", StrOS.str()}; 3924 } 3925 } 3926 3927 template <class ELFT> 3928 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3929 auto PrintHeader = [&](const typename ELFT::Off Offset, 3930 const typename ELFT::Addr Size) { 3931 OS << "Displaying notes found at file offset " << format_hex(Offset, 10) 3932 << " with length " << format_hex(Size, 10) << ":\n" 3933 << " Owner Data size\tDescription\n"; 3934 }; 3935 3936 auto ProcessNote = [&](const Elf_Note &Note) { 3937 StringRef Name = Note.getName(); 3938 ArrayRef<uint8_t> Descriptor = Note.getDesc(); 3939 Elf_Word Type = Note.getType(); 3940 3941 OS << " " << Name << std::string(22 - Name.size(), ' ') 3942 << format_hex(Descriptor.size(), 10) << '\t'; 3943 3944 if (Name == "GNU") { 3945 OS << getGNUNoteTypeName(Type) << '\n'; 3946 printGNUNote<ELFT>(OS, Type, Descriptor); 3947 } else if (Name == "FreeBSD") { 3948 OS << getFreeBSDNoteTypeName(Type) << '\n'; 3949 } else if (Name == "AMD") { 3950 OS << getAMDNoteTypeName(Type) << '\n'; 3951 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor); 3952 if (!N.Type.empty()) 3953 OS << " " << N.Type << ":\n " << N.Value << '\n'; 3954 } else if (Name == "AMDGPU") { 3955 OS << getAMDGPUNoteTypeName(Type) << '\n'; 3956 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor); 3957 if (!N.Type.empty()) 3958 OS << " " << N.Type << ":\n " << N.Value << '\n'; 3959 } else { 3960 OS << "Unknown note type: (" << format_hex(Type, 10) << ')'; 3961 } 3962 OS << '\n'; 3963 }; 3964 3965 if (Obj->getHeader()->e_type == ELF::ET_CORE) { 3966 for (const auto &P : unwrapOrError(Obj->program_headers())) { 3967 if (P.p_type != PT_NOTE) 3968 continue; 3969 PrintHeader(P.p_offset, P.p_filesz); 3970 Error Err = Error::success(); 3971 for (const auto &Note : Obj->notes(P, Err)) 3972 ProcessNote(Note); 3973 if (Err) 3974 error(std::move(Err)); 3975 } 3976 } else { 3977 for (const auto &S : unwrapOrError(Obj->sections())) { 3978 if (S.sh_type != SHT_NOTE) 3979 continue; 3980 PrintHeader(S.sh_offset, S.sh_size); 3981 Error Err = Error::success(); 3982 for (const auto &Note : Obj->notes(S, Err)) 3983 ProcessNote(Note); 3984 if (Err) 3985 error(std::move(Err)); 3986 } 3987 } 3988 } 3989 3990 template <class ELFT> 3991 void GNUStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 3992 OS << "printELFLinkerOptions not implemented!\n"; 3993 } 3994 3995 template <class ELFT> 3996 void GNUStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 3997 size_t Bias = ELFT::Is64Bits ? 8 : 0; 3998 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 3999 OS.PadToColumn(2); 4000 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 4001 OS.PadToColumn(11 + Bias); 4002 OS << format_decimal(Parser.getGotOffset(E), 6) << "(gp)"; 4003 OS.PadToColumn(22 + Bias); 4004 OS << format_hex_no_prefix(*E, 8 + Bias); 4005 OS.PadToColumn(31 + 2 * Bias); 4006 OS << Purpose << "\n"; 4007 }; 4008 4009 OS << (Parser.IsStatic ? "Static GOT:\n" : "Primary GOT:\n"); 4010 OS << " Canonical gp value: " 4011 << format_hex_no_prefix(Parser.getGp(), 8 + Bias) << "\n\n"; 4012 4013 OS << " Reserved entries:\n"; 4014 OS << " Address Access Initial Purpose\n"; 4015 PrintEntry(Parser.getGotLazyResolver(), "Lazy resolver"); 4016 if (Parser.getGotModulePointer()) 4017 PrintEntry(Parser.getGotModulePointer(), "Module pointer (GNU extension)"); 4018 4019 if (!Parser.getLocalEntries().empty()) { 4020 OS << "\n"; 4021 OS << " Local entries:\n"; 4022 OS << " Address Access Initial\n"; 4023 for (auto &E : Parser.getLocalEntries()) 4024 PrintEntry(&E, ""); 4025 } 4026 4027 if (Parser.IsStatic) 4028 return; 4029 4030 if (!Parser.getGlobalEntries().empty()) { 4031 OS << "\n"; 4032 OS << " Global entries:\n"; 4033 OS << " Address Access Initial Sym.Val. Type Ndx Name\n"; 4034 for (auto &E : Parser.getGlobalEntries()) { 4035 const Elf_Sym *Sym = Parser.getGotSym(&E); 4036 std::string SymName = this->dumper()->getFullSymbolName( 4037 Sym, this->dumper()->getDynamicStringTable(), false); 4038 4039 OS.PadToColumn(2); 4040 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 4041 OS.PadToColumn(11 + Bias); 4042 OS << to_string(format_decimal(Parser.getGotOffset(&E), 6)) + "(gp)"; 4043 OS.PadToColumn(22 + Bias); 4044 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 4045 OS.PadToColumn(31 + 2 * Bias); 4046 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 4047 OS.PadToColumn(40 + 3 * Bias); 4048 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4049 OS.PadToColumn(48 + 3 * Bias); 4050 OS << getSymbolSectionNdx(Parser.Obj, Sym, 4051 this->dumper()->dynamic_symbols().begin()); 4052 OS.PadToColumn(52 + 3 * Bias); 4053 OS << SymName << "\n"; 4054 } 4055 } 4056 4057 if (!Parser.getOtherEntries().empty()) 4058 OS << "\n Number of TLS and multi-GOT entries " 4059 << Parser.getOtherEntries().size() << "\n"; 4060 } 4061 4062 template <class ELFT> 4063 void GNUStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 4064 size_t Bias = ELFT::Is64Bits ? 8 : 0; 4065 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 4066 OS.PadToColumn(2); 4067 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 4068 OS.PadToColumn(11 + Bias); 4069 OS << format_hex_no_prefix(*E, 8 + Bias); 4070 OS.PadToColumn(20 + 2 * Bias); 4071 OS << Purpose << "\n"; 4072 }; 4073 4074 OS << "PLT GOT:\n\n"; 4075 4076 OS << " Reserved entries:\n"; 4077 OS << " Address Initial Purpose\n"; 4078 PrintEntry(Parser.getPltLazyResolver(), "PLT lazy resolver"); 4079 if (Parser.getPltModulePointer()) 4080 PrintEntry(Parser.getGotModulePointer(), "Module pointer"); 4081 4082 if (!Parser.getPltEntries().empty()) { 4083 OS << "\n"; 4084 OS << " Entries:\n"; 4085 OS << " Address Initial Sym.Val. Type Ndx Name\n"; 4086 for (auto &E : Parser.getPltEntries()) { 4087 const Elf_Sym *Sym = Parser.getPltSym(&E); 4088 std::string SymName = this->dumper()->getFullSymbolName( 4089 Sym, this->dumper()->getDynamicStringTable(), false); 4090 4091 OS.PadToColumn(2); 4092 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 4093 OS.PadToColumn(11 + Bias); 4094 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 4095 OS.PadToColumn(20 + 2 * Bias); 4096 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 4097 OS.PadToColumn(29 + 3 * Bias); 4098 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4099 OS.PadToColumn(37 + 3 * Bias); 4100 OS << getSymbolSectionNdx(Parser.Obj, Sym, 4101 this->dumper()->dynamic_symbols().begin()); 4102 OS.PadToColumn(41 + 3 * Bias); 4103 OS << SymName << "\n"; 4104 } 4105 } 4106 } 4107 4108 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 4109 const Elf_Ehdr *E = Obj->getHeader(); 4110 { 4111 DictScope D(W, "ElfHeader"); 4112 { 4113 DictScope D(W, "Ident"); 4114 W.printBinary("Magic", makeArrayRef(E->e_ident).slice(ELF::EI_MAG0, 4)); 4115 W.printEnum("Class", E->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 4116 W.printEnum("DataEncoding", E->e_ident[ELF::EI_DATA], 4117 makeArrayRef(ElfDataEncoding)); 4118 W.printNumber("FileVersion", E->e_ident[ELF::EI_VERSION]); 4119 4120 auto OSABI = makeArrayRef(ElfOSABI); 4121 if (E->e_ident[ELF::EI_OSABI] >= ELF::ELFOSABI_FIRST_ARCH && 4122 E->e_ident[ELF::EI_OSABI] <= ELF::ELFOSABI_LAST_ARCH) { 4123 switch (E->e_machine) { 4124 case ELF::EM_AMDGPU: 4125 OSABI = makeArrayRef(AMDGPUElfOSABI); 4126 break; 4127 case ELF::EM_ARM: 4128 OSABI = makeArrayRef(ARMElfOSABI); 4129 break; 4130 case ELF::EM_TI_C6000: 4131 OSABI = makeArrayRef(C6000ElfOSABI); 4132 break; 4133 } 4134 } 4135 W.printEnum("OS/ABI", E->e_ident[ELF::EI_OSABI], OSABI); 4136 W.printNumber("ABIVersion", E->e_ident[ELF::EI_ABIVERSION]); 4137 W.printBinary("Unused", makeArrayRef(E->e_ident).slice(ELF::EI_PAD)); 4138 } 4139 4140 W.printEnum("Type", E->e_type, makeArrayRef(ElfObjectFileType)); 4141 W.printEnum("Machine", E->e_machine, makeArrayRef(ElfMachineType)); 4142 W.printNumber("Version", E->e_version); 4143 W.printHex("Entry", E->e_entry); 4144 W.printHex("ProgramHeaderOffset", E->e_phoff); 4145 W.printHex("SectionHeaderOffset", E->e_shoff); 4146 if (E->e_machine == EM_MIPS) 4147 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderMipsFlags), 4148 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 4149 unsigned(ELF::EF_MIPS_MACH)); 4150 else if (E->e_machine == EM_AMDGPU) 4151 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderAMDGPUFlags), 4152 unsigned(ELF::EF_AMDGPU_MACH)); 4153 else if (E->e_machine == EM_RISCV) 4154 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); 4155 else 4156 W.printFlags("Flags", E->e_flags); 4157 W.printNumber("HeaderSize", E->e_ehsize); 4158 W.printNumber("ProgramHeaderEntrySize", E->e_phentsize); 4159 W.printNumber("ProgramHeaderCount", E->e_phnum); 4160 W.printNumber("SectionHeaderEntrySize", E->e_shentsize); 4161 W.printString("SectionHeaderCount", getSectionHeadersNumString(Obj)); 4162 W.printString("StringTableSectionIndex", getSectionHeaderTableIndexString(Obj)); 4163 } 4164 } 4165 4166 template <class ELFT> 4167 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) { 4168 DictScope Lists(W, "Groups"); 4169 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 4170 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 4171 for (const GroupSection &G : V) { 4172 DictScope D(W, "Group"); 4173 W.printNumber("Name", G.Name, G.ShName); 4174 W.printNumber("Index", G.Index); 4175 W.printNumber("Link", G.Link); 4176 W.printNumber("Info", G.Info); 4177 W.printHex("Type", getGroupType(G.Type), G.Type); 4178 W.startLine() << "Signature: " << G.Signature << "\n"; 4179 4180 ListScope L(W, "Section(s) in group"); 4181 for (const GroupMember &GM : G.Members) { 4182 const GroupSection *MainGroup = Map[GM.Index]; 4183 if (MainGroup != &G) { 4184 W.flush(); 4185 errs() << "Error: " << GM.Name << " (" << GM.Index 4186 << ") in a group " + G.Name + " (" << G.Index 4187 << ") is already in a group " + MainGroup->Name + " (" 4188 << MainGroup->Index << ")\n"; 4189 errs().flush(); 4190 continue; 4191 } 4192 W.startLine() << GM.Name << " (" << GM.Index << ")\n"; 4193 } 4194 } 4195 4196 if (V.empty()) 4197 W.startLine() << "There are no group sections in the file.\n"; 4198 } 4199 4200 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) { 4201 ListScope D(W, "Relocations"); 4202 4203 int SectionNumber = -1; 4204 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4205 ++SectionNumber; 4206 4207 if (Sec.sh_type != ELF::SHT_REL && 4208 Sec.sh_type != ELF::SHT_RELA && 4209 Sec.sh_type != ELF::SHT_RELR && 4210 Sec.sh_type != ELF::SHT_ANDROID_REL && 4211 Sec.sh_type != ELF::SHT_ANDROID_RELA && 4212 Sec.sh_type != ELF::SHT_ANDROID_RELR) 4213 continue; 4214 4215 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4216 4217 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; 4218 W.indent(); 4219 4220 printRelocations(&Sec, Obj); 4221 4222 W.unindent(); 4223 W.startLine() << "}\n"; 4224 } 4225 } 4226 4227 template <class ELFT> 4228 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) { 4229 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 4230 4231 switch (Sec->sh_type) { 4232 case ELF::SHT_REL: 4233 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) { 4234 Elf_Rela Rela; 4235 Rela.r_offset = R.r_offset; 4236 Rela.r_info = R.r_info; 4237 Rela.r_addend = 0; 4238 printRelocation(Obj, Rela, SymTab); 4239 } 4240 break; 4241 case ELF::SHT_RELA: 4242 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec))) 4243 printRelocation(Obj, R, SymTab); 4244 break; 4245 case ELF::SHT_RELR: 4246 case ELF::SHT_ANDROID_RELR: { 4247 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(Sec)); 4248 if (opts::RawRelr) { 4249 for (const Elf_Relr &R : Relrs) 4250 W.startLine() << W.hex(R) << "\n"; 4251 } else { 4252 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4253 for (const Elf_Rela &R : RelrRelas) 4254 printRelocation(Obj, R, SymTab); 4255 } 4256 break; 4257 } 4258 case ELF::SHT_ANDROID_REL: 4259 case ELF::SHT_ANDROID_RELA: 4260 for (const Elf_Rela &R : unwrapOrError(Obj->android_relas(Sec))) 4261 printRelocation(Obj, R, SymTab); 4262 break; 4263 } 4264 } 4265 4266 template <class ELFT> 4267 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel, 4268 const Elf_Shdr *SymTab) { 4269 SmallString<32> RelocName; 4270 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4271 std::string TargetName; 4272 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab)); 4273 if (Sym && Sym->getType() == ELF::STT_SECTION) { 4274 const Elf_Shdr *Sec = unwrapOrError( 4275 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 4276 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 4277 } else if (Sym) { 4278 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 4279 TargetName = maybeDemangle(unwrapOrError(Sym->getName(StrTable))); 4280 } 4281 4282 if (opts::ExpandRelocs) { 4283 DictScope Group(W, "Relocation"); 4284 W.printHex("Offset", Rel.r_offset); 4285 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4286 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-", 4287 Rel.getSymbol(Obj->isMips64EL())); 4288 W.printHex("Addend", Rel.r_addend); 4289 } else { 4290 raw_ostream &OS = W.startLine(); 4291 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4292 << (!TargetName.empty() ? TargetName : "-") << " " 4293 << W.hex(Rel.r_addend) << "\n"; 4294 } 4295 } 4296 4297 template <class ELFT> 4298 void LLVMStyle<ELFT>::printSectionHeaders(const ELFO *Obj) { 4299 ListScope SectionsD(W, "Sections"); 4300 4301 int SectionIndex = -1; 4302 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4303 ++SectionIndex; 4304 4305 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4306 4307 DictScope SectionD(W, "Section"); 4308 W.printNumber("Index", SectionIndex); 4309 W.printNumber("Name", Name, Sec.sh_name); 4310 W.printHex( 4311 "Type", 4312 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type), 4313 Sec.sh_type); 4314 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags), 4315 std::end(ElfSectionFlags)); 4316 switch (Obj->getHeader()->e_machine) { 4317 case EM_ARM: 4318 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags), 4319 std::end(ElfARMSectionFlags)); 4320 break; 4321 case EM_HEXAGON: 4322 SectionFlags.insert(SectionFlags.end(), 4323 std::begin(ElfHexagonSectionFlags), 4324 std::end(ElfHexagonSectionFlags)); 4325 break; 4326 case EM_MIPS: 4327 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags), 4328 std::end(ElfMipsSectionFlags)); 4329 break; 4330 case EM_X86_64: 4331 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags), 4332 std::end(ElfX86_64SectionFlags)); 4333 break; 4334 case EM_XCORE: 4335 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags), 4336 std::end(ElfXCoreSectionFlags)); 4337 break; 4338 default: 4339 // Nothing to do. 4340 break; 4341 } 4342 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags)); 4343 W.printHex("Address", Sec.sh_addr); 4344 W.printHex("Offset", Sec.sh_offset); 4345 W.printNumber("Size", Sec.sh_size); 4346 W.printNumber("Link", Sec.sh_link); 4347 W.printNumber("Info", Sec.sh_info); 4348 W.printNumber("AddressAlignment", Sec.sh_addralign); 4349 W.printNumber("EntrySize", Sec.sh_entsize); 4350 4351 if (opts::SectionRelocations) { 4352 ListScope D(W, "Relocations"); 4353 printRelocations(&Sec, Obj); 4354 } 4355 4356 if (opts::SectionSymbols) { 4357 ListScope D(W, "Symbols"); 4358 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec(); 4359 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 4360 4361 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) { 4362 const Elf_Shdr *SymSec = unwrapOrError( 4363 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable())); 4364 if (SymSec == &Sec) 4365 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(), 4366 StrTable, false); 4367 } 4368 } 4369 4370 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) { 4371 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec)); 4372 W.printBinaryBlock("SectionData", 4373 StringRef((const char *)Data.data(), Data.size())); 4374 } 4375 } 4376 } 4377 4378 template <class ELFT> 4379 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 4380 const Elf_Sym *First, StringRef StrTable, 4381 bool IsDynamic) { 4382 unsigned SectionIndex = 0; 4383 StringRef SectionName; 4384 this->dumper()->getSectionNameIndex(Symbol, First, SectionName, SectionIndex); 4385 std::string FullSymbolName = 4386 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 4387 unsigned char SymbolType = Symbol->getType(); 4388 4389 DictScope D(W, "Symbol"); 4390 W.printNumber("Name", FullSymbolName, Symbol->st_name); 4391 W.printHex("Value", Symbol->st_value); 4392 W.printNumber("Size", Symbol->st_size); 4393 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 4394 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 4395 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 4396 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 4397 else 4398 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes)); 4399 if (Symbol->st_other == 0) 4400 // Usually st_other flag is zero. Do not pollute the output 4401 // by flags enumeration in that case. 4402 W.printNumber("Other", 0); 4403 else { 4404 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags), 4405 std::end(ElfSymOtherFlags)); 4406 if (Obj->getHeader()->e_machine == EM_MIPS) { 4407 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16 4408 // flag overlapped with other ST_MIPS_xxx flags. So consider both 4409 // cases separately. 4410 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16) 4411 SymOtherFlags.insert(SymOtherFlags.end(), 4412 std::begin(ElfMips16SymOtherFlags), 4413 std::end(ElfMips16SymOtherFlags)); 4414 else 4415 SymOtherFlags.insert(SymOtherFlags.end(), 4416 std::begin(ElfMipsSymOtherFlags), 4417 std::end(ElfMipsSymOtherFlags)); 4418 } 4419 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u); 4420 } 4421 W.printHex("Section", SectionName, SectionIndex); 4422 } 4423 4424 template <class ELFT> 4425 void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj, bool PrintSymbols, 4426 bool PrintDynamicSymbols) { 4427 if (PrintSymbols) 4428 printSymbols(Obj); 4429 if (PrintDynamicSymbols) 4430 printDynamicSymbols(Obj); 4431 } 4432 4433 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) { 4434 ListScope Group(W, "Symbols"); 4435 this->dumper()->printSymbolsHelper(false); 4436 } 4437 4438 template <class ELFT> 4439 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 4440 ListScope Group(W, "DynamicSymbols"); 4441 this->dumper()->printSymbolsHelper(true); 4442 } 4443 4444 template <class ELFT> 4445 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 4446 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 4447 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 4448 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 4449 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 4450 if (DynRelRegion.Size && DynRelaRegion.Size) 4451 report_fatal_error("There are both REL and RELA dynamic relocations"); 4452 W.startLine() << "Dynamic Relocations {\n"; 4453 W.indent(); 4454 if (DynRelaRegion.Size > 0) 4455 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 4456 printDynamicRelocation(Obj, Rela); 4457 else 4458 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 4459 Elf_Rela Rela; 4460 Rela.r_offset = Rel.r_offset; 4461 Rela.r_info = Rel.r_info; 4462 Rela.r_addend = 0; 4463 printDynamicRelocation(Obj, Rela); 4464 } 4465 if (DynRelrRegion.Size > 0) { 4466 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 4467 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4468 for (const Elf_Rela &Rela : RelrRelas) 4469 printDynamicRelocation(Obj, Rela); 4470 } 4471 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) 4472 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 4473 printDynamicRelocation(Obj, Rela); 4474 else 4475 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 4476 Elf_Rela Rela; 4477 Rela.r_offset = Rel.r_offset; 4478 Rela.r_info = Rel.r_info; 4479 Rela.r_addend = 0; 4480 printDynamicRelocation(Obj, Rela); 4481 } 4482 W.unindent(); 4483 W.startLine() << "}\n"; 4484 } 4485 4486 template <class ELFT> 4487 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) { 4488 SmallString<32> RelocName; 4489 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4490 std::string SymbolName; 4491 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL()); 4492 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 4493 SymbolName = maybeDemangle( 4494 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()))); 4495 if (opts::ExpandRelocs) { 4496 DictScope Group(W, "Relocation"); 4497 W.printHex("Offset", Rel.r_offset); 4498 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4499 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-"); 4500 W.printHex("Addend", Rel.r_addend); 4501 } else { 4502 raw_ostream &OS = W.startLine(); 4503 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4504 << (!SymbolName.empty() ? SymbolName : "-") << " " 4505 << W.hex(Rel.r_addend) << "\n"; 4506 } 4507 } 4508 4509 template <class ELFT> 4510 void LLVMStyle<ELFT>::printProgramHeaders( 4511 const ELFO *Obj, bool PrintProgramHeaders, 4512 cl::boolOrDefault PrintSectionMapping) { 4513 if (PrintProgramHeaders) 4514 printProgramHeaders(Obj); 4515 if (PrintSectionMapping == cl::BOU_TRUE) 4516 printSectionMapping(Obj); 4517 } 4518 4519 template <class ELFT> 4520 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 4521 ListScope L(W, "ProgramHeaders"); 4522 4523 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 4524 DictScope P(W, "ProgramHeader"); 4525 W.printHex("Type", 4526 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type), 4527 Phdr.p_type); 4528 W.printHex("Offset", Phdr.p_offset); 4529 W.printHex("VirtualAddress", Phdr.p_vaddr); 4530 W.printHex("PhysicalAddress", Phdr.p_paddr); 4531 W.printNumber("FileSize", Phdr.p_filesz); 4532 W.printNumber("MemSize", Phdr.p_memsz); 4533 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags)); 4534 W.printNumber("Alignment", Phdr.p_align); 4535 } 4536 } 4537 4538 template <class ELFT> 4539 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 4540 W.startLine() << "Hash Histogram not implemented!\n"; 4541 } 4542 4543 template <class ELFT> 4544 void LLVMStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 4545 ListScope L(W, "CGProfile"); 4546 if (!this->dumper()->getDotCGProfileSec()) 4547 return; 4548 auto CGProfile = 4549 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_CGProfile>( 4550 this->dumper()->getDotCGProfileSec())); 4551 for (const Elf_CGProfile &CGPE : CGProfile) { 4552 DictScope D(W, "CGProfileEntry"); 4553 W.printNumber("From", this->dumper()->getStaticSymbolName(CGPE.cgp_from), 4554 CGPE.cgp_from); 4555 W.printNumber("To", this->dumper()->getStaticSymbolName(CGPE.cgp_to), 4556 CGPE.cgp_to); 4557 W.printNumber("Weight", CGPE.cgp_weight); 4558 } 4559 } 4560 4561 template <class ELFT> 4562 void LLVMStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 4563 ListScope L(W, "Addrsig"); 4564 if (!this->dumper()->getDotAddrsigSec()) 4565 return; 4566 ArrayRef<uint8_t> Contents = unwrapOrError( 4567 Obj->getSectionContents(this->dumper()->getDotAddrsigSec())); 4568 const uint8_t *Cur = Contents.begin(); 4569 const uint8_t *End = Contents.end(); 4570 while (Cur != End) { 4571 unsigned Size; 4572 const char *Err; 4573 uint64_t SymIndex = decodeULEB128(Cur, &Size, End, &Err); 4574 if (Err) 4575 reportError(Err); 4576 W.printNumber("Sym", this->dumper()->getStaticSymbolName(SymIndex), 4577 SymIndex); 4578 Cur += Size; 4579 } 4580 } 4581 4582 template <typename ELFT> 4583 static void printGNUNoteLLVMStyle(uint32_t NoteType, 4584 ArrayRef<uint8_t> Desc, 4585 ScopedPrinter &W) { 4586 switch (NoteType) { 4587 default: 4588 return; 4589 case ELF::NT_GNU_ABI_TAG: { 4590 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc); 4591 if (!AbiTag.IsValid) { 4592 W.printString("ABI", "<corrupt GNU_ABI_TAG>"); 4593 } else { 4594 W.printString("OS", AbiTag.OSName); 4595 W.printString("ABI", AbiTag.ABI); 4596 } 4597 break; 4598 } 4599 case ELF::NT_GNU_BUILD_ID: { 4600 W.printString("Build ID", getGNUBuildId(Desc)); 4601 break; 4602 } 4603 case ELF::NT_GNU_GOLD_VERSION: 4604 W.printString("Version", getGNUGoldVersion(Desc)); 4605 break; 4606 case ELF::NT_GNU_PROPERTY_TYPE_0: 4607 ListScope D(W, "Property"); 4608 for (const auto &Property : getGNUPropertyList<ELFT>(Desc)) 4609 W.printString(Property); 4610 break; 4611 } 4612 } 4613 4614 template <class ELFT> 4615 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 4616 ListScope L(W, "Notes"); 4617 4618 auto PrintHeader = [&](const typename ELFT::Off Offset, 4619 const typename ELFT::Addr Size) { 4620 W.printHex("Offset", Offset); 4621 W.printHex("Size", Size); 4622 }; 4623 4624 auto ProcessNote = [&](const Elf_Note &Note) { 4625 DictScope D2(W, "Note"); 4626 StringRef Name = Note.getName(); 4627 ArrayRef<uint8_t> Descriptor = Note.getDesc(); 4628 Elf_Word Type = Note.getType(); 4629 4630 W.printString("Owner", Name); 4631 W.printHex("Data size", Descriptor.size()); 4632 if (Name == "GNU") { 4633 W.printString("Type", getGNUNoteTypeName(Type)); 4634 printGNUNoteLLVMStyle<ELFT>(Type, Descriptor, W); 4635 } else if (Name == "FreeBSD") { 4636 W.printString("Type", getFreeBSDNoteTypeName(Type)); 4637 } else if (Name == "AMD") { 4638 W.printString("Type", getAMDNoteTypeName(Type)); 4639 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor); 4640 if (!N.Type.empty()) 4641 W.printString(N.Type, N.Value); 4642 } else if (Name == "AMDGPU") { 4643 W.printString("Type", getAMDGPUNoteTypeName(Type)); 4644 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor); 4645 if (!N.Type.empty()) 4646 W.printString(N.Type, N.Value); 4647 } else { 4648 W.getOStream() << "Unknown note type: (" << format_hex(Type, 10) << ')'; 4649 } 4650 }; 4651 4652 if (Obj->getHeader()->e_type == ELF::ET_CORE) { 4653 for (const auto &P : unwrapOrError(Obj->program_headers())) { 4654 if (P.p_type != PT_NOTE) 4655 continue; 4656 DictScope D(W, "NoteSection"); 4657 PrintHeader(P.p_offset, P.p_filesz); 4658 Error Err = Error::success(); 4659 for (const auto &Note : Obj->notes(P, Err)) 4660 ProcessNote(Note); 4661 if (Err) 4662 error(std::move(Err)); 4663 } 4664 } else { 4665 for (const auto &S : unwrapOrError(Obj->sections())) { 4666 if (S.sh_type != SHT_NOTE) 4667 continue; 4668 DictScope D(W, "NoteSection"); 4669 PrintHeader(S.sh_offset, S.sh_size); 4670 Error Err = Error::success(); 4671 for (const auto &Note : Obj->notes(S, Err)) 4672 ProcessNote(Note); 4673 if (Err) 4674 error(std::move(Err)); 4675 } 4676 } 4677 } 4678 4679 template <class ELFT> 4680 void LLVMStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 4681 ListScope L(W, "LinkerOptions"); 4682 4683 for (const Elf_Shdr &Shdr : unwrapOrError(Obj->sections())) { 4684 if (Shdr.sh_type != ELF::SHT_LLVM_LINKER_OPTIONS) 4685 continue; 4686 4687 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Shdr)); 4688 for (const uint8_t *P = Contents.begin(), *E = Contents.end(); P < E; ) { 4689 StringRef Key = StringRef(reinterpret_cast<const char *>(P)); 4690 StringRef Value = 4691 StringRef(reinterpret_cast<const char *>(P) + Key.size() + 1); 4692 4693 W.printString(Key, Value); 4694 4695 P = P + Key.size() + Value.size() + 2; 4696 } 4697 } 4698 } 4699 4700 template <class ELFT> 4701 void LLVMStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 4702 auto PrintEntry = [&](const Elf_Addr *E) { 4703 W.printHex("Address", Parser.getGotAddress(E)); 4704 W.printNumber("Access", Parser.getGotOffset(E)); 4705 W.printHex("Initial", *E); 4706 }; 4707 4708 DictScope GS(W, Parser.IsStatic ? "Static GOT" : "Primary GOT"); 4709 4710 W.printHex("Canonical gp value", Parser.getGp()); 4711 { 4712 ListScope RS(W, "Reserved entries"); 4713 { 4714 DictScope D(W, "Entry"); 4715 PrintEntry(Parser.getGotLazyResolver()); 4716 W.printString("Purpose", StringRef("Lazy resolver")); 4717 } 4718 4719 if (Parser.getGotModulePointer()) { 4720 DictScope D(W, "Entry"); 4721 PrintEntry(Parser.getGotModulePointer()); 4722 W.printString("Purpose", StringRef("Module pointer (GNU extension)")); 4723 } 4724 } 4725 { 4726 ListScope LS(W, "Local entries"); 4727 for (auto &E : Parser.getLocalEntries()) { 4728 DictScope D(W, "Entry"); 4729 PrintEntry(&E); 4730 } 4731 } 4732 4733 if (Parser.IsStatic) 4734 return; 4735 4736 { 4737 ListScope GS(W, "Global entries"); 4738 for (auto &E : Parser.getGlobalEntries()) { 4739 DictScope D(W, "Entry"); 4740 4741 PrintEntry(&E); 4742 4743 const Elf_Sym *Sym = Parser.getGotSym(&E); 4744 W.printHex("Value", Sym->st_value); 4745 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4746 4747 unsigned SectionIndex = 0; 4748 StringRef SectionName; 4749 this->dumper()->getSectionNameIndex( 4750 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4751 SectionIndex); 4752 W.printHex("Section", SectionName, SectionIndex); 4753 4754 std::string SymName = this->dumper()->getFullSymbolName( 4755 Sym, this->dumper()->getDynamicStringTable(), true); 4756 W.printNumber("Name", SymName, Sym->st_name); 4757 } 4758 } 4759 4760 W.printNumber("Number of TLS and multi-GOT entries", 4761 uint64_t(Parser.getOtherEntries().size())); 4762 } 4763 4764 template <class ELFT> 4765 void LLVMStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 4766 auto PrintEntry = [&](const Elf_Addr *E) { 4767 W.printHex("Address", Parser.getPltAddress(E)); 4768 W.printHex("Initial", *E); 4769 }; 4770 4771 DictScope GS(W, "PLT GOT"); 4772 4773 { 4774 ListScope RS(W, "Reserved entries"); 4775 { 4776 DictScope D(W, "Entry"); 4777 PrintEntry(Parser.getPltLazyResolver()); 4778 W.printString("Purpose", StringRef("PLT lazy resolver")); 4779 } 4780 4781 if (auto E = Parser.getPltModulePointer()) { 4782 DictScope D(W, "Entry"); 4783 PrintEntry(E); 4784 W.printString("Purpose", StringRef("Module pointer")); 4785 } 4786 } 4787 { 4788 ListScope LS(W, "Entries"); 4789 for (auto &E : Parser.getPltEntries()) { 4790 DictScope D(W, "Entry"); 4791 PrintEntry(&E); 4792 4793 const Elf_Sym *Sym = Parser.getPltSym(&E); 4794 W.printHex("Value", Sym->st_value); 4795 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4796 4797 unsigned SectionIndex = 0; 4798 StringRef SectionName; 4799 this->dumper()->getSectionNameIndex( 4800 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4801 SectionIndex); 4802 W.printHex("Section", SectionName, SectionIndex); 4803 4804 std::string SymName = 4805 this->dumper()->getFullSymbolName(Sym, Parser.getPltStrTable(), true); 4806 W.printNumber("Name", SymName, Sym->st_name); 4807 } 4808 } 4809 } 4810