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 reinterpret_cast<const uint8_t *>(DRI.Addr) + DRI.Size > 191 Obj->base() + Obj->getBufSize()) 192 error(llvm::object::object_error::parse_failed); 193 return DRI; 194 } 195 196 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) { 197 return checkDRI({ObjF->getELFFile()->base() + P->p_offset, P->p_filesz, EntSize}); 198 } 199 200 DynRegionInfo createDRIFrom(const Elf_Shdr *S) { 201 return checkDRI({ObjF->getELFFile()->base() + S->sh_offset, S->sh_size, S->sh_entsize}); 202 } 203 204 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments); 205 206 void printValue(uint64_t Type, uint64_t Value); 207 208 StringRef getDynamicString(uint64_t Offset) const; 209 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb, 210 bool &IsDefault) const; 211 void LoadVersionMap() const; 212 void LoadVersionNeeds(const Elf_Shdr *ec) const; 213 void LoadVersionDefs(const Elf_Shdr *sec) const; 214 215 const object::ELFObjectFile<ELFT> *ObjF; 216 DynRegionInfo DynRelRegion; 217 DynRegionInfo DynRelaRegion; 218 DynRegionInfo DynRelrRegion; 219 DynRegionInfo DynPLTRelRegion; 220 DynRegionInfo DynSymRegion; 221 DynRegionInfo DynamicTable; 222 StringRef DynamicStringTable; 223 StringRef SOName; 224 const Elf_Hash *HashTable = nullptr; 225 const Elf_GnuHash *GnuHashTable = nullptr; 226 const Elf_Shdr *DotSymtabSec = nullptr; 227 const Elf_Shdr *DotCGProfileSec = nullptr; 228 const Elf_Shdr *DotAddrsigSec = nullptr; 229 StringRef DynSymtabName; 230 ArrayRef<Elf_Word> ShndxTable; 231 232 const Elf_Shdr *SymbolVersionSection = nullptr; // .gnu.version 233 const Elf_Shdr *SymbolVersionNeedSection = nullptr; // .gnu.version_r 234 const Elf_Shdr *SymbolVersionDefSection = nullptr; // .gnu.version_d 235 236 // Records for each version index the corresponding Verdef or Vernaux entry. 237 // This is filled the first time LoadVersionMap() is called. 238 class VersionMapEntry : public PointerIntPair<const void *, 1> { 239 public: 240 // If the integer is 0, this is an Elf_Verdef*. 241 // If the integer is 1, this is an Elf_Vernaux*. 242 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {} 243 VersionMapEntry(const Elf_Verdef *verdef) 244 : PointerIntPair<const void *, 1>(verdef, 0) {} 245 VersionMapEntry(const Elf_Vernaux *vernaux) 246 : PointerIntPair<const void *, 1>(vernaux, 1) {} 247 248 bool isNull() const { return getPointer() == nullptr; } 249 bool isVerdef() const { return !isNull() && getInt() == 0; } 250 bool isVernaux() const { return !isNull() && getInt() == 1; } 251 const Elf_Verdef *getVerdef() const { 252 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr; 253 } 254 const Elf_Vernaux *getVernaux() const { 255 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr; 256 } 257 }; 258 mutable SmallVector<VersionMapEntry, 16> VersionMap; 259 260 public: 261 Elf_Dyn_Range dynamic_table() const { 262 return DynamicTable.getAsArrayRef<Elf_Dyn>(); 263 } 264 265 Elf_Sym_Range dynamic_symbols() const { 266 return DynSymRegion.getAsArrayRef<Elf_Sym>(); 267 } 268 269 Elf_Rel_Range dyn_rels() const; 270 Elf_Rela_Range dyn_relas() const; 271 Elf_Relr_Range dyn_relrs() const; 272 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable, 273 bool IsDynamic) const; 274 void getSectionNameIndex(const Elf_Sym *Symbol, const Elf_Sym *FirstSym, 275 StringRef &SectionName, 276 unsigned &SectionIndex) const; 277 std::string getStaticSymbolName(uint32_t Index) const; 278 StringRef getSymbolVersionByIndex(StringRef StrTab, 279 uint32_t VersionSymbolIndex, 280 bool &IsDefault) const; 281 282 void printSymbolsHelper(bool IsDynamic) const; 283 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; } 284 const Elf_Shdr *getDotCGProfileSec() const { return DotCGProfileSec; } 285 const Elf_Shdr *getDotAddrsigSec() const { return DotAddrsigSec; } 286 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; } 287 StringRef getDynamicStringTable() const { return DynamicStringTable; } 288 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; } 289 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; } 290 const DynRegionInfo &getDynRelrRegion() const { return DynRelrRegion; } 291 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; } 292 const Elf_Hash *getHashTable() const { return HashTable; } 293 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; } 294 }; 295 296 template <class ELFT> 297 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const { 298 StringRef StrTable, SymtabName; 299 size_t Entries = 0; 300 Elf_Sym_Range Syms(nullptr, nullptr); 301 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 302 if (IsDynamic) { 303 StrTable = DynamicStringTable; 304 Syms = dynamic_symbols(); 305 SymtabName = DynSymtabName; 306 if (DynSymRegion.Addr) 307 Entries = DynSymRegion.Size / DynSymRegion.EntSize; 308 } else { 309 if (!DotSymtabSec) 310 return; 311 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 312 Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 313 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec)); 314 Entries = DotSymtabSec->getEntityCount(); 315 } 316 if (Syms.begin() == Syms.end()) 317 return; 318 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries); 319 for (const auto &Sym : Syms) 320 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic); 321 } 322 323 template <class ELFT> class MipsGOTParser; 324 325 template <typename ELFT> class DumpStyle { 326 public: 327 using Elf_Shdr = typename ELFT::Shdr; 328 using Elf_Sym = typename ELFT::Sym; 329 330 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {} 331 virtual ~DumpStyle() = default; 332 333 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0; 334 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0; 335 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0; 336 virtual void printSectionHeaders(const ELFFile<ELFT> *Obj) = 0; 337 virtual void printSymbols(const ELFFile<ELFT> *Obj, bool PrintSymbols, 338 bool PrintDynamicSymbols) = 0; 339 virtual void printHashSymbols(const ELFFile<ELFT> *Obj) {} 340 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0; 341 virtual void printSymtabMessage(const ELFFile<ELFT> *Obj, StringRef Name, 342 size_t Offset) {} 343 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol, 344 const Elf_Sym *FirstSym, StringRef StrTable, 345 bool IsDynamic) = 0; 346 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj, 347 bool PrintProgramHeaders, 348 cl::boolOrDefault PrintSectionMapping) = 0; 349 virtual void printVersionSymbolSection(const ELFFile<ELFT> *Obj, 350 const Elf_Shdr *Sec) = 0; 351 virtual void printVersionDefinitionSection(const ELFFile<ELFT> *Obj, 352 const Elf_Shdr *Sec) = 0; 353 virtual void printVersionDependencySection(const ELFFile<ELFT> *Obj, 354 const Elf_Shdr *Sec) = 0; 355 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0; 356 virtual void printCGProfile(const ELFFile<ELFT> *Obj) = 0; 357 virtual void printAddrsig(const ELFFile<ELFT> *Obj) = 0; 358 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0; 359 virtual void printELFLinkerOptions(const ELFFile<ELFT> *Obj) = 0; 360 virtual void printMipsGOT(const MipsGOTParser<ELFT> &Parser) = 0; 361 virtual void printMipsPLT(const MipsGOTParser<ELFT> &Parser) = 0; 362 const ELFDumper<ELFT> *dumper() const { return Dumper; } 363 364 private: 365 const ELFDumper<ELFT> *Dumper; 366 }; 367 368 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> { 369 formatted_raw_ostream OS; 370 371 public: 372 TYPEDEF_ELF_TYPES(ELFT) 373 374 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 375 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {} 376 377 void printFileHeaders(const ELFO *Obj) override; 378 void printGroupSections(const ELFFile<ELFT> *Obj) override; 379 void printRelocations(const ELFO *Obj) override; 380 void printSectionHeaders(const ELFO *Obj) override; 381 void printSymbols(const ELFO *Obj, bool PrintSymbols, 382 bool PrintDynamicSymbols) override; 383 void printHashSymbols(const ELFO *Obj) override; 384 void printDynamicRelocations(const ELFO *Obj) override; 385 void printSymtabMessage(const ELFO *Obj, StringRef Name, 386 size_t Offset) override; 387 void printProgramHeaders(const ELFO *Obj, bool PrintProgramHeaders, 388 cl::boolOrDefault PrintSectionMapping) override; 389 void printVersionSymbolSection(const ELFFile<ELFT> *Obj, 390 const Elf_Shdr *Sec) override; 391 void printVersionDefinitionSection(const ELFFile<ELFT> *Obj, 392 const Elf_Shdr *Sec) override; 393 void printVersionDependencySection(const ELFFile<ELFT> *Obj, 394 const Elf_Shdr *Sec) override; 395 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 396 void printCGProfile(const ELFFile<ELFT> *Obj) override; 397 void printAddrsig(const ELFFile<ELFT> *Obj) override; 398 void printNotes(const ELFFile<ELFT> *Obj) override; 399 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; 400 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; 401 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override; 402 403 private: 404 struct Field { 405 std::string Str; 406 unsigned Column; 407 408 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {} 409 Field(unsigned Col) : Column(Col) {} 410 }; 411 412 template <typename T, typename TEnum> 413 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) { 414 for (const auto &EnumItem : EnumValues) 415 if (EnumItem.Value == Value) 416 return EnumItem.AltName; 417 return to_hexString(Value, false); 418 } 419 420 template <typename T, typename TEnum> 421 std::string printFlags(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues, 422 TEnum EnumMask1 = {}, TEnum EnumMask2 = {}, 423 TEnum EnumMask3 = {}) { 424 std::string Str; 425 for (const auto &Flag : EnumValues) { 426 if (Flag.Value == 0) 427 continue; 428 429 TEnum EnumMask{}; 430 if (Flag.Value & EnumMask1) 431 EnumMask = EnumMask1; 432 else if (Flag.Value & EnumMask2) 433 EnumMask = EnumMask2; 434 else if (Flag.Value & EnumMask3) 435 EnumMask = EnumMask3; 436 bool IsEnum = (Flag.Value & EnumMask) != 0; 437 if ((!IsEnum && (Value & Flag.Value) == Flag.Value) || 438 (IsEnum && (Value & EnumMask) == Flag.Value)) { 439 if (!Str.empty()) 440 Str += ", "; 441 Str += Flag.AltName; 442 } 443 } 444 return Str; 445 } 446 447 formatted_raw_ostream &printField(struct Field F) { 448 if (F.Column != 0) 449 OS.PadToColumn(F.Column); 450 OS << F.Str; 451 OS.flush(); 452 return OS; 453 } 454 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym, 455 StringRef StrTable, uint32_t Bucket); 456 void printRelocHeader(unsigned SType); 457 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 458 const Elf_Rela &R, bool IsRela); 459 void printRelocation(const ELFO *Obj, const Elf_Sym *Sym, 460 StringRef SymbolName, const Elf_Rela &R, bool IsRela); 461 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 462 StringRef StrTable, bool IsDynamic) override; 463 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol, 464 const Elf_Sym *FirstSym); 465 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela); 466 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 467 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 468 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 469 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 470 void printProgramHeaders(const ELFO *Obj); 471 void printSectionMapping(const ELFO *Obj); 472 }; 473 474 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> { 475 public: 476 TYPEDEF_ELF_TYPES(ELFT) 477 478 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 479 : DumpStyle<ELFT>(Dumper), W(W) {} 480 481 void printFileHeaders(const ELFO *Obj) override; 482 void printGroupSections(const ELFFile<ELFT> *Obj) override; 483 void printRelocations(const ELFO *Obj) override; 484 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj); 485 void printSectionHeaders(const ELFO *Obj) override; 486 void printSymbols(const ELFO *Obj, bool PrintSymbols, 487 bool PrintDynamicSymbols) override; 488 void printDynamicRelocations(const ELFO *Obj) override; 489 void printProgramHeaders(const ELFO *Obj, bool PrintProgramHeaders, 490 cl::boolOrDefault PrintSectionMapping) override; 491 void printVersionSymbolSection(const ELFFile<ELFT> *Obj, 492 const Elf_Shdr *Sec) override; 493 void printVersionDefinitionSection(const ELFFile<ELFT> *Obj, 494 const Elf_Shdr *Sec) override; 495 void printVersionDependencySection(const ELFFile<ELFT> *Obj, 496 const Elf_Shdr *Sec) override; 497 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 498 void printCGProfile(const ELFFile<ELFT> *Obj) override; 499 void printAddrsig(const ELFFile<ELFT> *Obj) override; 500 void printNotes(const ELFFile<ELFT> *Obj) override; 501 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; 502 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; 503 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override; 504 505 private: 506 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab); 507 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel); 508 void printSymbols(const ELFO *Obj); 509 void printDynamicSymbols(const ELFO *Obj); 510 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 511 StringRef StrTable, bool IsDynamic) override; 512 void printProgramHeaders(const ELFO *Obj); 513 void printSectionMapping(const ELFO *Obj) {} 514 515 ScopedPrinter &W; 516 }; 517 518 } // end anonymous namespace 519 520 namespace llvm { 521 522 template <class ELFT> 523 static std::error_code createELFDumper(const ELFObjectFile<ELFT> *Obj, 524 ScopedPrinter &Writer, 525 std::unique_ptr<ObjDumper> &Result) { 526 Result.reset(new ELFDumper<ELFT>(Obj, Writer)); 527 return readobj_error::success; 528 } 529 530 std::error_code createELFDumper(const object::ObjectFile *Obj, 531 ScopedPrinter &Writer, 532 std::unique_ptr<ObjDumper> &Result) { 533 // Little-endian 32-bit 534 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) 535 return createELFDumper(ELFObj, Writer, Result); 536 537 // Big-endian 32-bit 538 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) 539 return createELFDumper(ELFObj, Writer, Result); 540 541 // Little-endian 64-bit 542 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) 543 return createELFDumper(ELFObj, Writer, Result); 544 545 // Big-endian 64-bit 546 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) 547 return createELFDumper(ELFObj, Writer, Result); 548 549 return readobj_error::unsupported_obj_file_format; 550 } 551 552 } // end namespace llvm 553 554 // Iterate through the versions needed section, and place each Elf_Vernaux 555 // in the VersionMap according to its index. 556 template <class ELFT> 557 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *Sec) const { 558 unsigned VerneedSize = Sec->sh_size; // Size of section in bytes 559 unsigned VerneedEntries = Sec->sh_info; // Number of Verneed entries 560 const uint8_t *VerneedStart = reinterpret_cast<const uint8_t *>( 561 ObjF->getELFFile()->base() + Sec->sh_offset); 562 const uint8_t *VerneedEnd = VerneedStart + VerneedSize; 563 // The first Verneed entry is at the start of the section. 564 const uint8_t *VerneedBuf = VerneedStart; 565 for (unsigned VerneedIndex = 0; VerneedIndex < VerneedEntries; 566 ++VerneedIndex) { 567 if (VerneedBuf + sizeof(Elf_Verneed) > VerneedEnd) 568 report_fatal_error("Section ended unexpectedly while scanning " 569 "version needed records."); 570 const Elf_Verneed *Verneed = 571 reinterpret_cast<const Elf_Verneed *>(VerneedBuf); 572 if (Verneed->vn_version != ELF::VER_NEED_CURRENT) 573 report_fatal_error("Unexpected verneed version"); 574 // Iterate through the Vernaux entries 575 const uint8_t *VernauxBuf = VerneedBuf + Verneed->vn_aux; 576 for (unsigned VernauxIndex = 0; VernauxIndex < Verneed->vn_cnt; 577 ++VernauxIndex) { 578 if (VernauxBuf + sizeof(Elf_Vernaux) > VerneedEnd) 579 report_fatal_error("Section ended unexpected while scanning auxiliary " 580 "version needed records."); 581 const Elf_Vernaux *Vernaux = 582 reinterpret_cast<const Elf_Vernaux *>(VernauxBuf); 583 size_t Index = Vernaux->vna_other & ELF::VERSYM_VERSION; 584 if (Index >= VersionMap.size()) 585 VersionMap.resize(Index + 1); 586 VersionMap[Index] = VersionMapEntry(Vernaux); 587 VernauxBuf += Vernaux->vna_next; 588 } 589 VerneedBuf += Verneed->vn_next; 590 } 591 } 592 593 // Iterate through the version definitions, and place each Elf_Verdef 594 // in the VersionMap according to its index. 595 template <class ELFT> 596 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *Sec) const { 597 unsigned VerdefSize = Sec->sh_size; // Size of section in bytes 598 unsigned VerdefEntries = Sec->sh_info; // Number of Verdef entries 599 const uint8_t *VerdefStart = reinterpret_cast<const uint8_t *>( 600 ObjF->getELFFile()->base() + Sec->sh_offset); 601 const uint8_t *VerdefEnd = VerdefStart + VerdefSize; 602 // The first Verdef entry is at the start of the section. 603 const uint8_t *VerdefBuf = VerdefStart; 604 for (unsigned VerdefIndex = 0; VerdefIndex < VerdefEntries; ++VerdefIndex) { 605 if (VerdefBuf + sizeof(Elf_Verdef) > VerdefEnd) 606 report_fatal_error("Section ended unexpectedly while scanning " 607 "version definitions."); 608 const Elf_Verdef *Verdef = reinterpret_cast<const Elf_Verdef *>(VerdefBuf); 609 if (Verdef->vd_version != ELF::VER_DEF_CURRENT) 610 report_fatal_error("Unexpected verdef version"); 611 size_t Index = Verdef->vd_ndx & ELF::VERSYM_VERSION; 612 if (Index >= VersionMap.size()) 613 VersionMap.resize(Index + 1); 614 VersionMap[Index] = VersionMapEntry(Verdef); 615 VerdefBuf += Verdef->vd_next; 616 } 617 } 618 619 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const { 620 // If there is no dynamic symtab or version table, there is nothing to do. 621 if (!DynSymRegion.Addr || !SymbolVersionSection) 622 return; 623 624 // Has the VersionMap already been loaded? 625 if (!VersionMap.empty()) 626 return; 627 628 // The first two version indexes are reserved. 629 // Index 0 is LOCAL, index 1 is GLOBAL. 630 VersionMap.push_back(VersionMapEntry()); 631 VersionMap.push_back(VersionMapEntry()); 632 633 if (SymbolVersionDefSection) 634 LoadVersionDefs(SymbolVersionDefSection); 635 636 if (SymbolVersionNeedSection) 637 LoadVersionNeeds(SymbolVersionNeedSection); 638 } 639 640 template <typename ELFT> 641 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, 642 const Elf_Sym *Sym, 643 bool &IsDefault) const { 644 // This is a dynamic symbol. Look in the GNU symbol version table. 645 if (!SymbolVersionSection) { 646 // No version table. 647 IsDefault = false; 648 return ""; 649 } 650 651 // Determine the position in the symbol table of this entry. 652 size_t EntryIndex = (reinterpret_cast<uintptr_t>(Sym) - 653 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) / 654 sizeof(Elf_Sym); 655 656 // Get the corresponding version index entry. 657 const Elf_Versym *Versym = 658 unwrapOrError(ObjF->getELFFile()->template getEntry<Elf_Versym>( 659 SymbolVersionSection, EntryIndex)); 660 return this->getSymbolVersionByIndex(StrTab, Versym->vs_index, IsDefault); 661 } 662 663 static std::string maybeDemangle(StringRef Name) { 664 return opts::Demangle ? demangle(Name) : Name.str(); 665 } 666 667 template <typename ELFT> 668 std::string ELFDumper<ELFT>::getStaticSymbolName(uint32_t Index) const { 669 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 670 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 671 Elf_Sym_Range Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 672 if (Index >= Syms.size()) 673 reportError("Invalid symbol index"); 674 const Elf_Sym *Sym = &Syms[Index]; 675 return maybeDemangle(unwrapOrError(Sym->getName(StrTable))); 676 } 677 678 template <typename ELFT> 679 StringRef ELFDumper<ELFT>::getSymbolVersionByIndex( 680 StringRef StrTab, uint32_t SymbolVersionIndex, bool &IsDefault) const { 681 size_t VersionIndex = SymbolVersionIndex & VERSYM_VERSION; 682 683 // Special markers for unversioned symbols. 684 if (VersionIndex == VER_NDX_LOCAL || 685 VersionIndex == VER_NDX_GLOBAL) { 686 IsDefault = false; 687 return ""; 688 } 689 690 // Lookup this symbol in the version table. 691 LoadVersionMap(); 692 if (VersionIndex >= VersionMap.size() || VersionMap[VersionIndex].isNull()) 693 reportError("Invalid version entry"); 694 const VersionMapEntry &Entry = VersionMap[VersionIndex]; 695 696 // Get the version name string. 697 size_t NameOffset; 698 if (Entry.isVerdef()) { 699 // The first Verdaux entry holds the name. 700 NameOffset = Entry.getVerdef()->getAux()->vda_name; 701 IsDefault = !(SymbolVersionIndex & VERSYM_HIDDEN); 702 } else { 703 NameOffset = Entry.getVernaux()->vna_name; 704 IsDefault = false; 705 } 706 if (NameOffset >= StrTab.size()) 707 reportError("Invalid string offset"); 708 return StrTab.data() + NameOffset; 709 } 710 711 template <typename ELFT> 712 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol, 713 StringRef StrTable, 714 bool IsDynamic) const { 715 std::string SymbolName = 716 maybeDemangle(unwrapOrError(Symbol->getName(StrTable))); 717 718 if (SymbolName.empty() && Symbol->getType() == ELF::STT_SECTION) { 719 unsigned SectionIndex; 720 StringRef SectionName; 721 Elf_Sym_Range Syms = 722 unwrapOrError(ObjF->getELFFile()->symbols(DotSymtabSec)); 723 getSectionNameIndex(Symbol, Syms.begin(), SectionName, SectionIndex); 724 return SectionName; 725 } 726 727 if (!IsDynamic) 728 return SymbolName; 729 730 bool IsDefault; 731 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault); 732 if (!Version.empty()) { 733 SymbolName += (IsDefault ? "@@" : "@"); 734 SymbolName += Version; 735 } 736 return SymbolName; 737 } 738 739 template <typename ELFT> 740 void ELFDumper<ELFT>::getSectionNameIndex(const Elf_Sym *Symbol, 741 const Elf_Sym *FirstSym, 742 StringRef &SectionName, 743 unsigned &SectionIndex) const { 744 SectionIndex = Symbol->st_shndx; 745 if (Symbol->isUndefined()) 746 SectionName = "Undefined"; 747 else if (Symbol->isProcessorSpecific()) 748 SectionName = "Processor Specific"; 749 else if (Symbol->isOSSpecific()) 750 SectionName = "Operating System Specific"; 751 else if (Symbol->isAbsolute()) 752 SectionName = "Absolute"; 753 else if (Symbol->isCommon()) 754 SectionName = "Common"; 755 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX) 756 SectionName = "Reserved"; 757 else { 758 if (SectionIndex == SHN_XINDEX) 759 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 760 Symbol, FirstSym, ShndxTable)); 761 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 762 const typename ELFT::Shdr *Sec = 763 unwrapOrError(Obj->getSection(SectionIndex)); 764 SectionName = unwrapOrError(Obj->getSectionName(Sec)); 765 } 766 } 767 768 template <class ELFO> 769 static const typename ELFO::Elf_Shdr * 770 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) { 771 for (const auto &Shdr : unwrapOrError(Obj->sections())) 772 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0) 773 return &Shdr; 774 return nullptr; 775 } 776 777 template <class ELFO> 778 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj, 779 StringRef Name) { 780 for (const auto &Shdr : unwrapOrError(Obj.sections())) { 781 if (Name == unwrapOrError(Obj.getSectionName(&Shdr))) 782 return &Shdr; 783 } 784 return nullptr; 785 } 786 787 static const EnumEntry<unsigned> ElfClass[] = { 788 {"None", "none", ELF::ELFCLASSNONE}, 789 {"32-bit", "ELF32", ELF::ELFCLASS32}, 790 {"64-bit", "ELF64", ELF::ELFCLASS64}, 791 }; 792 793 static const EnumEntry<unsigned> ElfDataEncoding[] = { 794 {"None", "none", ELF::ELFDATANONE}, 795 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB}, 796 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB}, 797 }; 798 799 static const EnumEntry<unsigned> ElfObjectFileType[] = { 800 {"None", "NONE (none)", ELF::ET_NONE}, 801 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL}, 802 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC}, 803 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN}, 804 {"Core", "CORE (Core file)", ELF::ET_CORE}, 805 }; 806 807 static const EnumEntry<unsigned> ElfOSABI[] = { 808 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE}, 809 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX}, 810 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD}, 811 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX}, 812 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD}, 813 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS}, 814 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX}, 815 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX}, 816 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD}, 817 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64}, 818 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO}, 819 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD}, 820 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS}, 821 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK}, 822 {"AROS", "AROS", ELF::ELFOSABI_AROS}, 823 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS}, 824 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI}, 825 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE} 826 }; 827 828 static const EnumEntry<unsigned> SymVersionFlags[] = { 829 {"Base", "BASE", VER_FLG_BASE}, 830 {"Weak", "WEAK", VER_FLG_WEAK}, 831 {"Info", "INFO", VER_FLG_INFO}}; 832 833 static const EnumEntry<unsigned> AMDGPUElfOSABI[] = { 834 {"AMDGPU_HSA", "AMDGPU - HSA", ELF::ELFOSABI_AMDGPU_HSA}, 835 {"AMDGPU_PAL", "AMDGPU - PAL", ELF::ELFOSABI_AMDGPU_PAL}, 836 {"AMDGPU_MESA3D", "AMDGPU - MESA3D", ELF::ELFOSABI_AMDGPU_MESA3D} 837 }; 838 839 static const EnumEntry<unsigned> ARMElfOSABI[] = { 840 {"ARM", "ARM", ELF::ELFOSABI_ARM} 841 }; 842 843 static const EnumEntry<unsigned> C6000ElfOSABI[] = { 844 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI}, 845 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX} 846 }; 847 848 static const EnumEntry<unsigned> ElfMachineType[] = { 849 ENUM_ENT(EM_NONE, "None"), 850 ENUM_ENT(EM_M32, "WE32100"), 851 ENUM_ENT(EM_SPARC, "Sparc"), 852 ENUM_ENT(EM_386, "Intel 80386"), 853 ENUM_ENT(EM_68K, "MC68000"), 854 ENUM_ENT(EM_88K, "MC88000"), 855 ENUM_ENT(EM_IAMCU, "EM_IAMCU"), 856 ENUM_ENT(EM_860, "Intel 80860"), 857 ENUM_ENT(EM_MIPS, "MIPS R3000"), 858 ENUM_ENT(EM_S370, "IBM System/370"), 859 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"), 860 ENUM_ENT(EM_PARISC, "HPPA"), 861 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"), 862 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"), 863 ENUM_ENT(EM_960, "Intel 80960"), 864 ENUM_ENT(EM_PPC, "PowerPC"), 865 ENUM_ENT(EM_PPC64, "PowerPC64"), 866 ENUM_ENT(EM_S390, "IBM S/390"), 867 ENUM_ENT(EM_SPU, "SPU"), 868 ENUM_ENT(EM_V800, "NEC V800 series"), 869 ENUM_ENT(EM_FR20, "Fujistsu FR20"), 870 ENUM_ENT(EM_RH32, "TRW RH-32"), 871 ENUM_ENT(EM_RCE, "Motorola RCE"), 872 ENUM_ENT(EM_ARM, "ARM"), 873 ENUM_ENT(EM_ALPHA, "EM_ALPHA"), 874 ENUM_ENT(EM_SH, "Hitachi SH"), 875 ENUM_ENT(EM_SPARCV9, "Sparc v9"), 876 ENUM_ENT(EM_TRICORE, "Siemens Tricore"), 877 ENUM_ENT(EM_ARC, "ARC"), 878 ENUM_ENT(EM_H8_300, "Hitachi H8/300"), 879 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"), 880 ENUM_ENT(EM_H8S, "Hitachi H8S"), 881 ENUM_ENT(EM_H8_500, "Hitachi H8/500"), 882 ENUM_ENT(EM_IA_64, "Intel IA-64"), 883 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"), 884 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"), 885 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"), 886 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"), 887 ENUM_ENT(EM_PCP, "Siemens PCP"), 888 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"), 889 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"), 890 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"), 891 ENUM_ENT(EM_ME16, "Toyota ME16 processor"), 892 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"), 893 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"), 894 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"), 895 ENUM_ENT(EM_PDSP, "Sony DSP processor"), 896 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"), 897 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"), 898 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"), 899 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"), 900 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"), 901 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"), 902 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"), 903 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"), 904 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"), 905 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"), 906 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"), 907 ENUM_ENT(EM_VAX, "Digital VAX"), 908 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"), 909 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"), 910 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"), 911 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"), 912 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"), 913 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"), 914 ENUM_ENT(EM_PRISM, "Vitesse Prism"), 915 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"), 916 ENUM_ENT(EM_FR30, "Fujitsu FR30"), 917 ENUM_ENT(EM_D10V, "Mitsubishi D10V"), 918 ENUM_ENT(EM_D30V, "Mitsubishi D30V"), 919 ENUM_ENT(EM_V850, "NEC v850"), 920 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"), 921 ENUM_ENT(EM_MN10300, "Matsushita MN10300"), 922 ENUM_ENT(EM_MN10200, "Matsushita MN10200"), 923 ENUM_ENT(EM_PJ, "picoJava"), 924 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"), 925 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"), 926 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"), 927 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"), 928 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"), 929 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"), 930 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"), 931 ENUM_ENT(EM_SNP1K, "EM_SNP1K"), 932 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"), 933 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"), 934 ENUM_ENT(EM_MAX, "MAX Processor"), 935 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"), 936 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"), 937 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"), 938 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"), 939 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"), 940 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"), 941 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"), 942 ENUM_ENT(EM_UNICORE, "Unicore"), 943 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"), 944 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"), 945 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"), 946 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"), 947 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"), 948 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"), 949 ENUM_ENT(EM_M16C, "Renesas M16C"), 950 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"), 951 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"), 952 ENUM_ENT(EM_M32C, "Renesas M32C"), 953 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"), 954 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"), 955 ENUM_ENT(EM_SHARC, "EM_SHARC"), 956 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"), 957 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"), 958 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"), 959 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"), 960 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"), 961 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"), 962 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"), 963 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"), 964 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"), 965 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"), 966 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"), 967 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"), 968 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"), 969 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"), 970 ENUM_ENT(EM_8051, "Intel 8051 and variants"), 971 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"), 972 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"), 973 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"), 974 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"), 975 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"), 976 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"), 977 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"), 978 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"), 979 ENUM_ENT(EM_RX, "Renesas RX"), 980 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"), 981 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"), 982 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"), 983 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"), 984 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"), 985 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"), 986 ENUM_ENT(EM_L10M, "EM_L10M"), 987 ENUM_ENT(EM_K10M, "EM_K10M"), 988 ENUM_ENT(EM_AARCH64, "AArch64"), 989 ENUM_ENT(EM_AVR32, "Atmel Corporation 32-bit microprocessor family"), 990 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"), 991 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"), 992 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"), 993 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"), 994 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"), 995 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"), 996 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"), 997 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"), 998 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"), 999 ENUM_ENT(EM_OPEN8, "EM_OPEN8"), 1000 ENUM_ENT(EM_RL78, "Renesas RL78"), 1001 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"), 1002 ENUM_ENT(EM_78KOR, "EM_78KOR"), 1003 ENUM_ENT(EM_56800EX, "EM_56800EX"), 1004 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"), 1005 ENUM_ENT(EM_RISCV, "RISC-V"), 1006 ENUM_ENT(EM_LANAI, "EM_LANAI"), 1007 ENUM_ENT(EM_BPF, "EM_BPF"), 1008 }; 1009 1010 static const EnumEntry<unsigned> ElfSymbolBindings[] = { 1011 {"Local", "LOCAL", ELF::STB_LOCAL}, 1012 {"Global", "GLOBAL", ELF::STB_GLOBAL}, 1013 {"Weak", "WEAK", ELF::STB_WEAK}, 1014 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}}; 1015 1016 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = { 1017 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT}, 1018 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL}, 1019 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN}, 1020 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}}; 1021 1022 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = { 1023 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL } 1024 }; 1025 1026 static const char *getGroupType(uint32_t Flag) { 1027 if (Flag & ELF::GRP_COMDAT) 1028 return "COMDAT"; 1029 else 1030 return "(unknown)"; 1031 } 1032 1033 static const EnumEntry<unsigned> ElfSectionFlags[] = { 1034 ENUM_ENT(SHF_WRITE, "W"), 1035 ENUM_ENT(SHF_ALLOC, "A"), 1036 ENUM_ENT(SHF_EXCLUDE, "E"), 1037 ENUM_ENT(SHF_EXECINSTR, "X"), 1038 ENUM_ENT(SHF_MERGE, "M"), 1039 ENUM_ENT(SHF_STRINGS, "S"), 1040 ENUM_ENT(SHF_INFO_LINK, "I"), 1041 ENUM_ENT(SHF_LINK_ORDER, "L"), 1042 ENUM_ENT(SHF_OS_NONCONFORMING, "o"), 1043 ENUM_ENT(SHF_GROUP, "G"), 1044 ENUM_ENT(SHF_TLS, "T"), 1045 ENUM_ENT(SHF_MASKOS, "o"), 1046 ENUM_ENT(SHF_MASKPROC, "p"), 1047 ENUM_ENT_1(SHF_COMPRESSED), 1048 }; 1049 1050 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = { 1051 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION), 1052 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION) 1053 }; 1054 1055 static const EnumEntry<unsigned> ElfARMSectionFlags[] = { 1056 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE) 1057 }; 1058 1059 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = { 1060 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL) 1061 }; 1062 1063 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = { 1064 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES), 1065 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ), 1066 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ), 1067 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP), 1068 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ), 1069 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ), 1070 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ), 1071 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING ) 1072 }; 1073 1074 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = { 1075 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE) 1076 }; 1077 1078 static std::string getGNUFlags(uint64_t Flags) { 1079 std::string Str; 1080 for (auto Entry : ElfSectionFlags) { 1081 uint64_t Flag = Entry.Value & Flags; 1082 Flags &= ~Entry.Value; 1083 switch (Flag) { 1084 case ELF::SHF_WRITE: 1085 case ELF::SHF_ALLOC: 1086 case ELF::SHF_EXECINSTR: 1087 case ELF::SHF_MERGE: 1088 case ELF::SHF_STRINGS: 1089 case ELF::SHF_INFO_LINK: 1090 case ELF::SHF_LINK_ORDER: 1091 case ELF::SHF_OS_NONCONFORMING: 1092 case ELF::SHF_GROUP: 1093 case ELF::SHF_TLS: 1094 case ELF::SHF_EXCLUDE: 1095 Str += Entry.AltName; 1096 break; 1097 default: 1098 if (Flag & ELF::SHF_MASKOS) 1099 Str += "o"; 1100 else if (Flag & ELF::SHF_MASKPROC) 1101 Str += "p"; 1102 else if (Flag) 1103 Str += "x"; 1104 } 1105 } 1106 return Str; 1107 } 1108 1109 static const char *getElfSegmentType(unsigned Arch, unsigned Type) { 1110 // Check potentially overlapped processor-specific 1111 // program header type. 1112 switch (Arch) { 1113 case ELF::EM_ARM: 1114 switch (Type) { 1115 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX); 1116 } 1117 break; 1118 case ELF::EM_MIPS: 1119 case ELF::EM_MIPS_RS3_LE: 1120 switch (Type) { 1121 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO); 1122 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC); 1123 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS); 1124 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS); 1125 } 1126 break; 1127 } 1128 1129 switch (Type) { 1130 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL ); 1131 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD ); 1132 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC); 1133 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP ); 1134 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE ); 1135 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB ); 1136 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR ); 1137 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS ); 1138 1139 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME); 1140 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND); 1141 1142 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK); 1143 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO); 1144 1145 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE); 1146 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED); 1147 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA); 1148 1149 default: return ""; 1150 } 1151 } 1152 1153 static std::string getElfPtType(unsigned Arch, unsigned Type) { 1154 switch (Type) { 1155 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL) 1156 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD) 1157 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC) 1158 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP) 1159 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE) 1160 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB) 1161 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR) 1162 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS) 1163 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME) 1164 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND) 1165 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK) 1166 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO) 1167 default: 1168 // All machine specific PT_* types 1169 switch (Arch) { 1170 case ELF::EM_ARM: 1171 if (Type == ELF::PT_ARM_EXIDX) 1172 return "EXIDX"; 1173 break; 1174 case ELF::EM_MIPS: 1175 case ELF::EM_MIPS_RS3_LE: 1176 switch (Type) { 1177 case PT_MIPS_REGINFO: 1178 return "REGINFO"; 1179 case PT_MIPS_RTPROC: 1180 return "RTPROC"; 1181 case PT_MIPS_OPTIONS: 1182 return "OPTIONS"; 1183 case PT_MIPS_ABIFLAGS: 1184 return "ABIFLAGS"; 1185 } 1186 break; 1187 } 1188 } 1189 return std::string("<unknown>: ") + to_string(format_hex(Type, 1)); 1190 } 1191 1192 static const EnumEntry<unsigned> ElfSegmentFlags[] = { 1193 LLVM_READOBJ_ENUM_ENT(ELF, PF_X), 1194 LLVM_READOBJ_ENUM_ENT(ELF, PF_W), 1195 LLVM_READOBJ_ENUM_ENT(ELF, PF_R) 1196 }; 1197 1198 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = { 1199 ENUM_ENT(EF_MIPS_NOREORDER, "noreorder"), 1200 ENUM_ENT(EF_MIPS_PIC, "pic"), 1201 ENUM_ENT(EF_MIPS_CPIC, "cpic"), 1202 ENUM_ENT(EF_MIPS_ABI2, "abi2"), 1203 ENUM_ENT(EF_MIPS_32BITMODE, "32bitmode"), 1204 ENUM_ENT(EF_MIPS_FP64, "fp64"), 1205 ENUM_ENT(EF_MIPS_NAN2008, "nan2008"), 1206 ENUM_ENT(EF_MIPS_ABI_O32, "o32"), 1207 ENUM_ENT(EF_MIPS_ABI_O64, "o64"), 1208 ENUM_ENT(EF_MIPS_ABI_EABI32, "eabi32"), 1209 ENUM_ENT(EF_MIPS_ABI_EABI64, "eabi64"), 1210 ENUM_ENT(EF_MIPS_MACH_3900, "3900"), 1211 ENUM_ENT(EF_MIPS_MACH_4010, "4010"), 1212 ENUM_ENT(EF_MIPS_MACH_4100, "4100"), 1213 ENUM_ENT(EF_MIPS_MACH_4650, "4650"), 1214 ENUM_ENT(EF_MIPS_MACH_4120, "4120"), 1215 ENUM_ENT(EF_MIPS_MACH_4111, "4111"), 1216 ENUM_ENT(EF_MIPS_MACH_SB1, "sb1"), 1217 ENUM_ENT(EF_MIPS_MACH_OCTEON, "octeon"), 1218 ENUM_ENT(EF_MIPS_MACH_XLR, "xlr"), 1219 ENUM_ENT(EF_MIPS_MACH_OCTEON2, "octeon2"), 1220 ENUM_ENT(EF_MIPS_MACH_OCTEON3, "octeon3"), 1221 ENUM_ENT(EF_MIPS_MACH_5400, "5400"), 1222 ENUM_ENT(EF_MIPS_MACH_5900, "5900"), 1223 ENUM_ENT(EF_MIPS_MACH_5500, "5500"), 1224 ENUM_ENT(EF_MIPS_MACH_9000, "9000"), 1225 ENUM_ENT(EF_MIPS_MACH_LS2E, "loongson-2e"), 1226 ENUM_ENT(EF_MIPS_MACH_LS2F, "loongson-2f"), 1227 ENUM_ENT(EF_MIPS_MACH_LS3A, "loongson-3a"), 1228 ENUM_ENT(EF_MIPS_MICROMIPS, "micromips"), 1229 ENUM_ENT(EF_MIPS_ARCH_ASE_M16, "mips16"), 1230 ENUM_ENT(EF_MIPS_ARCH_ASE_MDMX, "mdmx"), 1231 ENUM_ENT(EF_MIPS_ARCH_1, "mips1"), 1232 ENUM_ENT(EF_MIPS_ARCH_2, "mips2"), 1233 ENUM_ENT(EF_MIPS_ARCH_3, "mips3"), 1234 ENUM_ENT(EF_MIPS_ARCH_4, "mips4"), 1235 ENUM_ENT(EF_MIPS_ARCH_5, "mips5"), 1236 ENUM_ENT(EF_MIPS_ARCH_32, "mips32"), 1237 ENUM_ENT(EF_MIPS_ARCH_64, "mips64"), 1238 ENUM_ENT(EF_MIPS_ARCH_32R2, "mips32r2"), 1239 ENUM_ENT(EF_MIPS_ARCH_64R2, "mips64r2"), 1240 ENUM_ENT(EF_MIPS_ARCH_32R6, "mips32r6"), 1241 ENUM_ENT(EF_MIPS_ARCH_64R6, "mips64r6") 1242 }; 1243 1244 static const EnumEntry<unsigned> ElfHeaderAMDGPUFlags[] = { 1245 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_NONE), 1246 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R600), 1247 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R630), 1248 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RS880), 1249 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV670), 1250 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV710), 1251 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV730), 1252 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV770), 1253 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CEDAR), 1254 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CYPRESS), 1255 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_JUNIPER), 1256 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_REDWOOD), 1257 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_SUMO), 1258 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_BARTS), 1259 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAICOS), 1260 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAYMAN), 1261 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_TURKS), 1262 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX600), 1263 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX601), 1264 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX700), 1265 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX701), 1266 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX702), 1267 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX703), 1268 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX704), 1269 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX801), 1270 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX802), 1271 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX803), 1272 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX810), 1273 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX900), 1274 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX902), 1275 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX904), 1276 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX906), 1277 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX909), 1278 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX1010), 1279 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_XNACK), 1280 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_SRAM_ECC) 1281 }; 1282 1283 static const EnumEntry<unsigned> ElfHeaderRISCVFlags[] = { 1284 ENUM_ENT(EF_RISCV_RVC, "RVC"), 1285 ENUM_ENT(EF_RISCV_FLOAT_ABI_SINGLE, "single-float ABI"), 1286 ENUM_ENT(EF_RISCV_FLOAT_ABI_DOUBLE, "double-float ABI"), 1287 ENUM_ENT(EF_RISCV_FLOAT_ABI_QUAD, "quad-float ABI"), 1288 ENUM_ENT(EF_RISCV_RVE, "RVE") 1289 }; 1290 1291 static const EnumEntry<unsigned> ElfSymOtherFlags[] = { 1292 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL), 1293 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN), 1294 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED) 1295 }; 1296 1297 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = { 1298 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1299 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1300 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC), 1301 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS) 1302 }; 1303 1304 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = { 1305 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1306 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1307 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16) 1308 }; 1309 1310 static const char *getElfMipsOptionsOdkType(unsigned Odk) { 1311 switch (Odk) { 1312 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL); 1313 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO); 1314 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS); 1315 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD); 1316 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH); 1317 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL); 1318 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS); 1319 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND); 1320 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR); 1321 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP); 1322 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT); 1323 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE); 1324 default: 1325 return "Unknown"; 1326 } 1327 } 1328 1329 template <typename ELFT> 1330 ELFDumper<ELFT>::ELFDumper(const object::ELFObjectFile<ELFT> *ObjF, 1331 ScopedPrinter &Writer) 1332 : ObjDumper(Writer), ObjF(ObjF) { 1333 SmallVector<const Elf_Phdr *, 4> LoadSegments; 1334 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 1335 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 1336 if (Phdr.p_type == ELF::PT_DYNAMIC) { 1337 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn)); 1338 continue; 1339 } 1340 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0) 1341 continue; 1342 LoadSegments.push_back(&Phdr); 1343 } 1344 1345 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1346 switch (Sec.sh_type) { 1347 case ELF::SHT_SYMTAB: 1348 if (DotSymtabSec != nullptr) 1349 reportError("Multiple SHT_SYMTAB"); 1350 DotSymtabSec = &Sec; 1351 break; 1352 case ELF::SHT_DYNSYM: 1353 if (DynSymRegion.Size) 1354 reportError("Multiple SHT_DYNSYM"); 1355 DynSymRegion = createDRIFrom(&Sec); 1356 // This is only used (if Elf_Shdr present)for naming section in GNU style 1357 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec)); 1358 DynamicStringTable = unwrapOrError(Obj->getStringTableForSymtab(Sec)); 1359 break; 1360 case ELF::SHT_SYMTAB_SHNDX: 1361 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec)); 1362 break; 1363 case ELF::SHT_GNU_versym: 1364 if (SymbolVersionSection != nullptr) 1365 reportError("Multiple SHT_GNU_versym"); 1366 SymbolVersionSection = &Sec; 1367 break; 1368 case ELF::SHT_GNU_verdef: 1369 if (SymbolVersionDefSection != nullptr) 1370 reportError("Multiple SHT_GNU_verdef"); 1371 SymbolVersionDefSection = &Sec; 1372 break; 1373 case ELF::SHT_GNU_verneed: 1374 if (SymbolVersionNeedSection != nullptr) 1375 reportError("Multiple SHT_GNU_verneed"); 1376 SymbolVersionNeedSection = &Sec; 1377 break; 1378 case ELF::SHT_LLVM_CALL_GRAPH_PROFILE: 1379 if (DotCGProfileSec != nullptr) 1380 reportError("Multiple .llvm.call-graph-profile"); 1381 DotCGProfileSec = &Sec; 1382 break; 1383 case ELF::SHT_LLVM_ADDRSIG: 1384 if (DotAddrsigSec != nullptr) 1385 reportError("Multiple .llvm_addrsig"); 1386 DotAddrsigSec = &Sec; 1387 break; 1388 } 1389 } 1390 1391 parseDynamicTable(LoadSegments); 1392 1393 if (opts::Output == opts::GNU) 1394 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this)); 1395 else 1396 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this)); 1397 } 1398 1399 template <typename ELFT> 1400 void ELFDumper<ELFT>::parseDynamicTable( 1401 ArrayRef<const Elf_Phdr *> LoadSegments) { 1402 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * { 1403 auto MappedAddrOrError = ObjF->getELFFile()->toMappedAddr(VAddr); 1404 if (!MappedAddrOrError) 1405 report_fatal_error(MappedAddrOrError.takeError()); 1406 return MappedAddrOrError.get(); 1407 }; 1408 1409 uint64_t SONameOffset = 0; 1410 const char *StringTableBegin = nullptr; 1411 uint64_t StringTableSize = 0; 1412 for (const Elf_Dyn &Dyn : dynamic_table()) { 1413 switch (Dyn.d_tag) { 1414 case ELF::DT_HASH: 1415 HashTable = 1416 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr())); 1417 break; 1418 case ELF::DT_GNU_HASH: 1419 GnuHashTable = 1420 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr())); 1421 break; 1422 case ELF::DT_STRTAB: 1423 StringTableBegin = 1424 reinterpret_cast<const char *>(toMappedAddr(Dyn.getPtr())); 1425 break; 1426 case ELF::DT_STRSZ: 1427 StringTableSize = Dyn.getVal(); 1428 break; 1429 case ELF::DT_SYMTAB: 1430 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr()); 1431 DynSymRegion.EntSize = sizeof(Elf_Sym); 1432 break; 1433 case ELF::DT_RELA: 1434 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr()); 1435 break; 1436 case ELF::DT_RELASZ: 1437 DynRelaRegion.Size = Dyn.getVal(); 1438 break; 1439 case ELF::DT_RELAENT: 1440 DynRelaRegion.EntSize = Dyn.getVal(); 1441 break; 1442 case ELF::DT_SONAME: 1443 SONameOffset = Dyn.getVal(); 1444 break; 1445 case ELF::DT_REL: 1446 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1447 break; 1448 case ELF::DT_RELSZ: 1449 DynRelRegion.Size = Dyn.getVal(); 1450 break; 1451 case ELF::DT_RELENT: 1452 DynRelRegion.EntSize = Dyn.getVal(); 1453 break; 1454 case ELF::DT_RELR: 1455 case ELF::DT_ANDROID_RELR: 1456 DynRelrRegion.Addr = toMappedAddr(Dyn.getPtr()); 1457 break; 1458 case ELF::DT_RELRSZ: 1459 case ELF::DT_ANDROID_RELRSZ: 1460 DynRelrRegion.Size = Dyn.getVal(); 1461 break; 1462 case ELF::DT_RELRENT: 1463 case ELF::DT_ANDROID_RELRENT: 1464 DynRelrRegion.EntSize = Dyn.getVal(); 1465 break; 1466 case ELF::DT_PLTREL: 1467 if (Dyn.getVal() == DT_REL) 1468 DynPLTRelRegion.EntSize = sizeof(Elf_Rel); 1469 else if (Dyn.getVal() == DT_RELA) 1470 DynPLTRelRegion.EntSize = sizeof(Elf_Rela); 1471 else 1472 reportError(Twine("unknown DT_PLTREL value of ") + 1473 Twine((uint64_t)Dyn.getVal())); 1474 break; 1475 case ELF::DT_JMPREL: 1476 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1477 break; 1478 case ELF::DT_PLTRELSZ: 1479 DynPLTRelRegion.Size = Dyn.getVal(); 1480 break; 1481 } 1482 } 1483 if (StringTableBegin) 1484 DynamicStringTable = StringRef(StringTableBegin, StringTableSize); 1485 if (SONameOffset) 1486 SOName = getDynamicString(SONameOffset); 1487 } 1488 1489 template <typename ELFT> 1490 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const { 1491 return DynRelRegion.getAsArrayRef<Elf_Rel>(); 1492 } 1493 1494 template <typename ELFT> 1495 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const { 1496 return DynRelaRegion.getAsArrayRef<Elf_Rela>(); 1497 } 1498 1499 template <typename ELFT> 1500 typename ELFDumper<ELFT>::Elf_Relr_Range ELFDumper<ELFT>::dyn_relrs() const { 1501 return DynRelrRegion.getAsArrayRef<Elf_Relr>(); 1502 } 1503 1504 template <class ELFT> 1505 void ELFDumper<ELFT>::printFileHeaders() { 1506 ELFDumperStyle->printFileHeaders(ObjF->getELFFile()); 1507 } 1508 1509 template <class ELFT> 1510 void ELFDumper<ELFT>::printSectionHeaders() { 1511 ELFDumperStyle->printSectionHeaders(ObjF->getELFFile()); 1512 } 1513 1514 template <class ELFT> 1515 void ELFDumper<ELFT>::printRelocations() { 1516 ELFDumperStyle->printRelocations(ObjF->getELFFile()); 1517 } 1518 1519 template <class ELFT> 1520 void ELFDumper<ELFT>::printProgramHeaders( 1521 bool PrintProgramHeaders, cl::boolOrDefault PrintSectionMapping) { 1522 ELFDumperStyle->printProgramHeaders(ObjF->getELFFile(), PrintProgramHeaders, 1523 PrintSectionMapping); 1524 } 1525 1526 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() { 1527 // Dump version symbol section. 1528 ELFDumperStyle->printVersionSymbolSection(ObjF->getELFFile(), 1529 SymbolVersionSection); 1530 1531 // Dump version definition section. 1532 ELFDumperStyle->printVersionDefinitionSection(ObjF->getELFFile(), 1533 SymbolVersionDefSection); 1534 1535 // Dump version dependency section. 1536 ELFDumperStyle->printVersionDependencySection(ObjF->getELFFile(), 1537 SymbolVersionNeedSection); 1538 } 1539 1540 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() { 1541 ELFDumperStyle->printDynamicRelocations(ObjF->getELFFile()); 1542 } 1543 1544 template <class ELFT> 1545 void ELFDumper<ELFT>::printSymbols(bool PrintSymbols, 1546 bool PrintDynamicSymbols) { 1547 ELFDumperStyle->printSymbols(ObjF->getELFFile(), PrintSymbols, 1548 PrintDynamicSymbols); 1549 } 1550 1551 template <class ELFT> 1552 void ELFDumper<ELFT>::printHashSymbols() { 1553 ELFDumperStyle->printHashSymbols(ObjF->getELFFile()); 1554 } 1555 1556 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() { 1557 ELFDumperStyle->printHashHistogram(ObjF->getELFFile()); 1558 } 1559 1560 template <class ELFT> void ELFDumper<ELFT>::printCGProfile() { 1561 ELFDumperStyle->printCGProfile(ObjF->getELFFile()); 1562 } 1563 1564 template <class ELFT> void ELFDumper<ELFT>::printNotes() { 1565 ELFDumperStyle->printNotes(ObjF->getELFFile()); 1566 } 1567 1568 template <class ELFT> void ELFDumper<ELFT>::printELFLinkerOptions() { 1569 ELFDumperStyle->printELFLinkerOptions(ObjF->getELFFile()); 1570 } 1571 1572 static const char *getTypeString(unsigned Arch, uint64_t Type) { 1573 #define DYNAMIC_TAG(n, v) 1574 switch (Arch) { 1575 case EM_HEXAGON: 1576 switch (Type) { 1577 #define HEXAGON_DYNAMIC_TAG(name, value) \ 1578 case DT_##name: \ 1579 return #name; 1580 #include "llvm/BinaryFormat/DynamicTags.def" 1581 #undef HEXAGON_DYNAMIC_TAG 1582 } 1583 break; 1584 1585 case EM_MIPS: 1586 switch (Type) { 1587 #define MIPS_DYNAMIC_TAG(name, value) \ 1588 case DT_##name: \ 1589 return #name; 1590 #include "llvm/BinaryFormat/DynamicTags.def" 1591 #undef MIPS_DYNAMIC_TAG 1592 } 1593 break; 1594 1595 case EM_PPC64: 1596 switch(Type) { 1597 #define PPC64_DYNAMIC_TAG(name, value) \ 1598 case DT_##name: \ 1599 return #name; 1600 #include "llvm/BinaryFormat/DynamicTags.def" 1601 #undef PPC64_DYNAMIC_TAG 1602 } 1603 break; 1604 } 1605 #undef DYNAMIC_TAG 1606 switch (Type) { 1607 // Now handle all dynamic tags except the architecture specific ones 1608 #define MIPS_DYNAMIC_TAG(name, value) 1609 #define HEXAGON_DYNAMIC_TAG(name, value) 1610 #define PPC64_DYNAMIC_TAG(name, value) 1611 // Also ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc. 1612 #define DYNAMIC_TAG_MARKER(name, value) 1613 #define DYNAMIC_TAG(name, value) \ 1614 case DT_##name: \ 1615 return #name; 1616 #include "llvm/BinaryFormat/DynamicTags.def" 1617 #undef DYNAMIC_TAG 1618 #undef MIPS_DYNAMIC_TAG 1619 #undef HEXAGON_DYNAMIC_TAG 1620 #undef PPC64_DYNAMIC_TAG 1621 #undef DYNAMIC_TAG_MARKER 1622 default: return "unknown"; 1623 } 1624 } 1625 1626 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \ 1627 { #enum, prefix##_##enum } 1628 1629 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = { 1630 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN), 1631 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC), 1632 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL), 1633 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW), 1634 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS) 1635 }; 1636 1637 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = { 1638 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW), 1639 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL), 1640 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP), 1641 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE), 1642 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR), 1643 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST), 1644 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN), 1645 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN), 1646 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT), 1647 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS), 1648 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE), 1649 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB), 1650 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP), 1651 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT), 1652 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE), 1653 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE), 1654 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELPND), 1655 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT), 1656 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF), 1657 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS), 1658 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR), 1659 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED), 1660 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC), 1661 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE), 1662 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT), 1663 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON) 1664 }; 1665 1666 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = { 1667 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE), 1668 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART), 1669 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT), 1670 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT), 1671 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE), 1672 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY), 1673 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT), 1674 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS), 1675 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT), 1676 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE), 1677 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD), 1678 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART), 1679 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED), 1680 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD), 1681 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF), 1682 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE) 1683 }; 1684 1685 #undef LLVM_READOBJ_DT_FLAG_ENT 1686 1687 template <typename T, typename TFlag> 1688 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) { 1689 using FlagEntry = EnumEntry<TFlag>; 1690 using FlagVector = SmallVector<FlagEntry, 10>; 1691 FlagVector SetFlags; 1692 1693 for (const auto &Flag : Flags) { 1694 if (Flag.Value == 0) 1695 continue; 1696 1697 if ((Value & Flag.Value) == Flag.Value) 1698 SetFlags.push_back(Flag); 1699 } 1700 1701 for (const auto &Flag : SetFlags) { 1702 OS << Flag.Name << " "; 1703 } 1704 } 1705 1706 template <class ELFT> 1707 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const { 1708 if (Value >= DynamicStringTable.size()) 1709 reportError("Invalid dynamic string table reference"); 1710 return StringRef(DynamicStringTable.data() + Value); 1711 } 1712 1713 static void printLibrary(raw_ostream &OS, const Twine &Tag, const Twine &Name) { 1714 OS << Tag << ": [" << Name << "]"; 1715 } 1716 1717 template <class ELFT> 1718 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { 1719 raw_ostream &OS = W.getOStream(); 1720 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64; 1721 switch (Type) { 1722 case DT_PLTREL: 1723 if (Value == DT_REL) { 1724 OS << "REL"; 1725 break; 1726 } else if (Value == DT_RELA) { 1727 OS << "RELA"; 1728 break; 1729 } 1730 LLVM_FALLTHROUGH; 1731 case DT_PLTGOT: 1732 case DT_HASH: 1733 case DT_STRTAB: 1734 case DT_SYMTAB: 1735 case DT_RELA: 1736 case DT_INIT: 1737 case DT_FINI: 1738 case DT_REL: 1739 case DT_JMPREL: 1740 case DT_INIT_ARRAY: 1741 case DT_FINI_ARRAY: 1742 case DT_PREINIT_ARRAY: 1743 case DT_DEBUG: 1744 case DT_VERDEF: 1745 case DT_VERNEED: 1746 case DT_VERSYM: 1747 case DT_GNU_HASH: 1748 case DT_NULL: 1749 case DT_MIPS_BASE_ADDRESS: 1750 case DT_MIPS_GOTSYM: 1751 case DT_MIPS_RLD_MAP: 1752 case DT_MIPS_RLD_MAP_REL: 1753 case DT_MIPS_PLTGOT: 1754 case DT_MIPS_OPTIONS: 1755 OS << format(ConvChar, Value); 1756 break; 1757 case DT_RELACOUNT: 1758 case DT_RELCOUNT: 1759 case DT_VERDEFNUM: 1760 case DT_VERNEEDNUM: 1761 case DT_MIPS_RLD_VERSION: 1762 case DT_MIPS_LOCAL_GOTNO: 1763 case DT_MIPS_SYMTABNO: 1764 case DT_MIPS_UNREFEXTNO: 1765 OS << Value; 1766 break; 1767 case DT_PLTRELSZ: 1768 case DT_RELASZ: 1769 case DT_RELAENT: 1770 case DT_STRSZ: 1771 case DT_SYMENT: 1772 case DT_RELSZ: 1773 case DT_RELENT: 1774 case DT_INIT_ARRAYSZ: 1775 case DT_FINI_ARRAYSZ: 1776 case DT_PREINIT_ARRAYSZ: 1777 case DT_ANDROID_RELSZ: 1778 case DT_ANDROID_RELASZ: 1779 OS << Value << " (bytes)"; 1780 break; 1781 case DT_NEEDED: 1782 printLibrary(OS, "Shared library", getDynamicString(Value)); 1783 break; 1784 case DT_SONAME: 1785 printLibrary(OS, "Library soname", getDynamicString(Value)); 1786 break; 1787 case DT_AUXILIARY: 1788 printLibrary(OS, "Auxiliary library", getDynamicString(Value)); 1789 break; 1790 case DT_USED: 1791 printLibrary(OS, "Not needed object", getDynamicString(Value)); 1792 break; 1793 case DT_FILTER: 1794 printLibrary(OS, "Filter library", getDynamicString(Value)); 1795 break; 1796 case DT_RPATH: 1797 case DT_RUNPATH: 1798 OS << getDynamicString(Value); 1799 break; 1800 case DT_MIPS_FLAGS: 1801 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS); 1802 break; 1803 case DT_FLAGS: 1804 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS); 1805 break; 1806 case DT_FLAGS_1: 1807 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS); 1808 break; 1809 default: 1810 OS << format(ConvChar, Value); 1811 break; 1812 } 1813 } 1814 1815 template <class ELFT> 1816 void ELFDumper<ELFT>::printUnwindInfo() { 1817 DwarfCFIEH::PrinterContext<ELFT> Ctx(W, ObjF); 1818 Ctx.printUnwindInformation(); 1819 } 1820 1821 namespace { 1822 1823 template <> void ELFDumper<ELF32LE>::printUnwindInfo() { 1824 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile(); 1825 const unsigned Machine = Obj->getHeader()->e_machine; 1826 if (Machine == EM_ARM) { 1827 ARM::EHABI::PrinterContext<ELF32LE> Ctx(W, Obj, DotSymtabSec); 1828 Ctx.PrintUnwindInformation(); 1829 } 1830 DwarfCFIEH::PrinterContext<ELF32LE> Ctx(W, ObjF); 1831 Ctx.printUnwindInformation(); 1832 } 1833 1834 } // end anonymous namespace 1835 1836 template <class ELFT> 1837 void ELFDumper<ELFT>::printDynamicTable() { 1838 // A valid .dynamic section contains an array of entries terminated with 1839 // a DT_NULL entry. However, sometimes the section content may continue 1840 // past the DT_NULL entry, so to dump the section correctly, we first find 1841 // the end of the entries by iterating over them. 1842 size_t Size = 0; 1843 Elf_Dyn_Range DynTableEntries = dynamic_table(); 1844 for (; Size < DynTableEntries.size();) 1845 if (DynTableEntries[Size++].getTag() == DT_NULL) 1846 break; 1847 1848 if (!Size) 1849 return; 1850 1851 raw_ostream &OS = W.getOStream(); 1852 W.startLine() << "DynamicSection [ (" << Size << " entries)\n"; 1853 1854 bool Is64 = ELFT::Is64Bits; 1855 W.startLine() 1856 << " Tag" << (Is64 ? " " : " ") << "Type" 1857 << " " << "Name/Value\n"; 1858 for (size_t I = 0; I < Size; ++I) { 1859 const Elf_Dyn &Entry = DynTableEntries[I]; 1860 uintX_t Tag = Entry.getTag(); 1861 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " " 1862 << format("%-21s", getTypeString(ObjF->getELFFile()->getHeader()->e_machine, Tag)); 1863 printValue(Tag, Entry.getVal()); 1864 OS << "\n"; 1865 } 1866 1867 W.startLine() << "]\n"; 1868 } 1869 1870 template <class ELFT> 1871 void ELFDumper<ELFT>::printNeededLibraries() { 1872 ListScope D(W, "NeededLibraries"); 1873 1874 using LibsTy = std::vector<StringRef>; 1875 LibsTy Libs; 1876 1877 for (const auto &Entry : dynamic_table()) 1878 if (Entry.d_tag == ELF::DT_NEEDED) 1879 Libs.push_back(getDynamicString(Entry.d_un.d_val)); 1880 1881 llvm::stable_sort(Libs); 1882 1883 for (const auto &L : Libs) 1884 W.startLine() << L << "\n"; 1885 } 1886 1887 1888 template <typename ELFT> 1889 void ELFDumper<ELFT>::printHashTable() { 1890 DictScope D(W, "HashTable"); 1891 if (!HashTable) 1892 return; 1893 W.printNumber("Num Buckets", HashTable->nbucket); 1894 W.printNumber("Num Chains", HashTable->nchain); 1895 W.printList("Buckets", HashTable->buckets()); 1896 W.printList("Chains", HashTable->chains()); 1897 } 1898 1899 template <typename ELFT> 1900 void ELFDumper<ELFT>::printGnuHashTable() { 1901 DictScope D(W, "GnuHashTable"); 1902 if (!GnuHashTable) 1903 return; 1904 W.printNumber("Num Buckets", GnuHashTable->nbuckets); 1905 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx); 1906 W.printNumber("Num Mask Words", GnuHashTable->maskwords); 1907 W.printNumber("Shift Count", GnuHashTable->shift2); 1908 W.printHexList("Bloom Filter", GnuHashTable->filter()); 1909 W.printList("Buckets", GnuHashTable->buckets()); 1910 Elf_Sym_Range Syms = dynamic_symbols(); 1911 unsigned NumSyms = std::distance(Syms.begin(), Syms.end()); 1912 if (!NumSyms) 1913 reportError("No dynamic symbol section"); 1914 W.printHexList("Values", GnuHashTable->values(NumSyms)); 1915 } 1916 1917 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() { 1918 W.printString("LoadName", SOName); 1919 } 1920 1921 template <class ELFT> 1922 void ELFDumper<ELFT>::printAttributes() { 1923 W.startLine() << "Attributes not implemented.\n"; 1924 } 1925 1926 namespace { 1927 1928 template <> void ELFDumper<ELF32LE>::printAttributes() { 1929 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile(); 1930 if (Obj->getHeader()->e_machine != EM_ARM) { 1931 W.startLine() << "Attributes not implemented.\n"; 1932 return; 1933 } 1934 1935 DictScope BA(W, "BuildAttributes"); 1936 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1937 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES) 1938 continue; 1939 1940 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec)); 1941 if (Contents[0] != ARMBuildAttrs::Format_Version) { 1942 errs() << "unrecognised FormatVersion: 0x" 1943 << Twine::utohexstr(Contents[0]) << '\n'; 1944 continue; 1945 } 1946 1947 W.printHex("FormatVersion", Contents[0]); 1948 if (Contents.size() == 1) 1949 continue; 1950 1951 ARMAttributeParser(&W).Parse(Contents, true); 1952 } 1953 } 1954 1955 template <class ELFT> class MipsGOTParser { 1956 public: 1957 TYPEDEF_ELF_TYPES(ELFT) 1958 using Entry = typename ELFO::Elf_Addr; 1959 using Entries = ArrayRef<Entry>; 1960 1961 const bool IsStatic; 1962 const ELFO * const Obj; 1963 1964 MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, Elf_Sym_Range DynSyms); 1965 1966 bool hasGot() const { return !GotEntries.empty(); } 1967 bool hasPlt() const { return !PltEntries.empty(); } 1968 1969 uint64_t getGp() const; 1970 1971 const Entry *getGotLazyResolver() const; 1972 const Entry *getGotModulePointer() const; 1973 const Entry *getPltLazyResolver() const; 1974 const Entry *getPltModulePointer() const; 1975 1976 Entries getLocalEntries() const; 1977 Entries getGlobalEntries() const; 1978 Entries getOtherEntries() const; 1979 Entries getPltEntries() const; 1980 1981 uint64_t getGotAddress(const Entry * E) const; 1982 int64_t getGotOffset(const Entry * E) const; 1983 const Elf_Sym *getGotSym(const Entry *E) const; 1984 1985 uint64_t getPltAddress(const Entry * E) const; 1986 const Elf_Sym *getPltSym(const Entry *E) const; 1987 1988 StringRef getPltStrTable() const { return PltStrTable; } 1989 1990 private: 1991 const Elf_Shdr *GotSec; 1992 size_t LocalNum; 1993 size_t GlobalNum; 1994 1995 const Elf_Shdr *PltSec; 1996 const Elf_Shdr *PltRelSec; 1997 const Elf_Shdr *PltSymTable; 1998 Elf_Sym_Range GotDynSyms; 1999 StringRef PltStrTable; 2000 2001 Entries GotEntries; 2002 Entries PltEntries; 2003 }; 2004 2005 } // end anonymous namespace 2006 2007 template <class ELFT> 2008 MipsGOTParser<ELFT>::MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, 2009 Elf_Sym_Range DynSyms) 2010 : IsStatic(DynTable.empty()), Obj(Obj), GotSec(nullptr), LocalNum(0), 2011 GlobalNum(0), PltSec(nullptr), PltRelSec(nullptr), PltSymTable(nullptr) { 2012 // See "Global Offset Table" in Chapter 5 in the following document 2013 // for detailed GOT description. 2014 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf 2015 2016 // Find static GOT secton. 2017 if (IsStatic) { 2018 GotSec = findSectionByName(*Obj, ".got"); 2019 if (!GotSec) 2020 reportError("Cannot find .got section"); 2021 2022 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2023 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2024 Content.size() / sizeof(Entry)); 2025 LocalNum = GotEntries.size(); 2026 return; 2027 } 2028 2029 // Lookup dynamic table tags which define GOT/PLT layouts. 2030 Optional<uint64_t> DtPltGot; 2031 Optional<uint64_t> DtLocalGotNum; 2032 Optional<uint64_t> DtGotSym; 2033 Optional<uint64_t> DtMipsPltGot; 2034 Optional<uint64_t> DtJmpRel; 2035 for (const auto &Entry : DynTable) { 2036 switch (Entry.getTag()) { 2037 case ELF::DT_PLTGOT: 2038 DtPltGot = Entry.getVal(); 2039 break; 2040 case ELF::DT_MIPS_LOCAL_GOTNO: 2041 DtLocalGotNum = Entry.getVal(); 2042 break; 2043 case ELF::DT_MIPS_GOTSYM: 2044 DtGotSym = Entry.getVal(); 2045 break; 2046 case ELF::DT_MIPS_PLTGOT: 2047 DtMipsPltGot = Entry.getVal(); 2048 break; 2049 case ELF::DT_JMPREL: 2050 DtJmpRel = Entry.getVal(); 2051 break; 2052 } 2053 } 2054 2055 // Find dynamic GOT section. 2056 if (DtPltGot || DtLocalGotNum || DtGotSym) { 2057 if (!DtPltGot) 2058 report_fatal_error("Cannot find PLTGOT dynamic table tag."); 2059 if (!DtLocalGotNum) 2060 report_fatal_error("Cannot find MIPS_LOCAL_GOTNO dynamic table tag."); 2061 if (!DtGotSym) 2062 report_fatal_error("Cannot find MIPS_GOTSYM dynamic table tag."); 2063 2064 size_t DynSymTotal = DynSyms.size(); 2065 if (*DtGotSym > DynSymTotal) 2066 reportError("MIPS_GOTSYM exceeds a number of dynamic symbols"); 2067 2068 GotSec = findNotEmptySectionByAddress(Obj, *DtPltGot); 2069 if (!GotSec) 2070 reportError("There is no not empty GOT section at 0x" + 2071 Twine::utohexstr(*DtPltGot)); 2072 2073 LocalNum = *DtLocalGotNum; 2074 GlobalNum = DynSymTotal - *DtGotSym; 2075 2076 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2077 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2078 Content.size() / sizeof(Entry)); 2079 GotDynSyms = DynSyms.drop_front(*DtGotSym); 2080 } 2081 2082 // Find PLT section. 2083 if (DtMipsPltGot || DtJmpRel) { 2084 if (!DtMipsPltGot) 2085 report_fatal_error("Cannot find MIPS_PLTGOT dynamic table tag."); 2086 if (!DtJmpRel) 2087 report_fatal_error("Cannot find JMPREL dynamic table tag."); 2088 2089 PltSec = findNotEmptySectionByAddress(Obj, *DtMipsPltGot); 2090 if (!PltSec) 2091 report_fatal_error("There is no not empty PLTGOT section at 0x " + 2092 Twine::utohexstr(*DtMipsPltGot)); 2093 2094 PltRelSec = findNotEmptySectionByAddress(Obj, *DtJmpRel); 2095 if (!PltRelSec) 2096 report_fatal_error("There is no not empty RELPLT section at 0x" + 2097 Twine::utohexstr(*DtJmpRel)); 2098 2099 ArrayRef<uint8_t> PltContent = 2100 unwrapOrError(Obj->getSectionContents(PltSec)); 2101 PltEntries = Entries(reinterpret_cast<const Entry *>(PltContent.data()), 2102 PltContent.size() / sizeof(Entry)); 2103 2104 PltSymTable = unwrapOrError(Obj->getSection(PltRelSec->sh_link)); 2105 PltStrTable = unwrapOrError(Obj->getStringTableForSymtab(*PltSymTable)); 2106 } 2107 } 2108 2109 template <class ELFT> uint64_t MipsGOTParser<ELFT>::getGp() const { 2110 return GotSec->sh_addr + 0x7ff0; 2111 } 2112 2113 template <class ELFT> 2114 const typename MipsGOTParser<ELFT>::Entry * 2115 MipsGOTParser<ELFT>::getGotLazyResolver() const { 2116 return LocalNum > 0 ? &GotEntries[0] : nullptr; 2117 } 2118 2119 template <class ELFT> 2120 const typename MipsGOTParser<ELFT>::Entry * 2121 MipsGOTParser<ELFT>::getGotModulePointer() const { 2122 if (LocalNum < 2) 2123 return nullptr; 2124 const Entry &E = GotEntries[1]; 2125 if ((E >> (sizeof(Entry) * 8 - 1)) == 0) 2126 return nullptr; 2127 return &E; 2128 } 2129 2130 template <class ELFT> 2131 typename MipsGOTParser<ELFT>::Entries 2132 MipsGOTParser<ELFT>::getLocalEntries() const { 2133 size_t Skip = getGotModulePointer() ? 2 : 1; 2134 if (LocalNum - Skip <= 0) 2135 return Entries(); 2136 return GotEntries.slice(Skip, LocalNum - Skip); 2137 } 2138 2139 template <class ELFT> 2140 typename MipsGOTParser<ELFT>::Entries 2141 MipsGOTParser<ELFT>::getGlobalEntries() const { 2142 if (GlobalNum == 0) 2143 return Entries(); 2144 return GotEntries.slice(LocalNum, GlobalNum); 2145 } 2146 2147 template <class ELFT> 2148 typename MipsGOTParser<ELFT>::Entries 2149 MipsGOTParser<ELFT>::getOtherEntries() const { 2150 size_t OtherNum = GotEntries.size() - LocalNum - GlobalNum; 2151 if (OtherNum == 0) 2152 return Entries(); 2153 return GotEntries.slice(LocalNum + GlobalNum, OtherNum); 2154 } 2155 2156 template <class ELFT> 2157 uint64_t MipsGOTParser<ELFT>::getGotAddress(const Entry *E) const { 2158 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2159 return GotSec->sh_addr + Offset; 2160 } 2161 2162 template <class ELFT> 2163 int64_t MipsGOTParser<ELFT>::getGotOffset(const Entry *E) const { 2164 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2165 return Offset - 0x7ff0; 2166 } 2167 2168 template <class ELFT> 2169 const typename MipsGOTParser<ELFT>::Elf_Sym * 2170 MipsGOTParser<ELFT>::getGotSym(const Entry *E) const { 2171 int64_t Offset = std::distance(GotEntries.data(), E); 2172 return &GotDynSyms[Offset - LocalNum]; 2173 } 2174 2175 template <class ELFT> 2176 const typename MipsGOTParser<ELFT>::Entry * 2177 MipsGOTParser<ELFT>::getPltLazyResolver() const { 2178 return PltEntries.empty() ? nullptr : &PltEntries[0]; 2179 } 2180 2181 template <class ELFT> 2182 const typename MipsGOTParser<ELFT>::Entry * 2183 MipsGOTParser<ELFT>::getPltModulePointer() const { 2184 return PltEntries.size() < 2 ? nullptr : &PltEntries[1]; 2185 } 2186 2187 template <class ELFT> 2188 typename MipsGOTParser<ELFT>::Entries 2189 MipsGOTParser<ELFT>::getPltEntries() const { 2190 if (PltEntries.size() <= 2) 2191 return Entries(); 2192 return PltEntries.slice(2, PltEntries.size() - 2); 2193 } 2194 2195 template <class ELFT> 2196 uint64_t MipsGOTParser<ELFT>::getPltAddress(const Entry *E) const { 2197 int64_t Offset = std::distance(PltEntries.data(), E) * sizeof(Entry); 2198 return PltSec->sh_addr + Offset; 2199 } 2200 2201 template <class ELFT> 2202 const typename MipsGOTParser<ELFT>::Elf_Sym * 2203 MipsGOTParser<ELFT>::getPltSym(const Entry *E) const { 2204 int64_t Offset = std::distance(getPltEntries().data(), E); 2205 if (PltRelSec->sh_type == ELF::SHT_REL) { 2206 Elf_Rel_Range Rels = unwrapOrError(Obj->rels(PltRelSec)); 2207 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2208 } else { 2209 Elf_Rela_Range Rels = unwrapOrError(Obj->relas(PltRelSec)); 2210 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2211 } 2212 } 2213 2214 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() { 2215 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2216 if (Obj->getHeader()->e_machine != EM_MIPS) 2217 reportError("MIPS PLT GOT is available for MIPS targets only"); 2218 2219 MipsGOTParser<ELFT> Parser(Obj, dynamic_table(), dynamic_symbols()); 2220 if (Parser.hasGot()) 2221 ELFDumperStyle->printMipsGOT(Parser); 2222 if (Parser.hasPlt()) 2223 ELFDumperStyle->printMipsPLT(Parser); 2224 } 2225 2226 static const EnumEntry<unsigned> ElfMipsISAExtType[] = { 2227 {"None", Mips::AFL_EXT_NONE}, 2228 {"Broadcom SB-1", Mips::AFL_EXT_SB1}, 2229 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON}, 2230 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2}, 2231 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP}, 2232 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3}, 2233 {"LSI R4010", Mips::AFL_EXT_4010}, 2234 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E}, 2235 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F}, 2236 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A}, 2237 {"MIPS R4650", Mips::AFL_EXT_4650}, 2238 {"MIPS R5900", Mips::AFL_EXT_5900}, 2239 {"MIPS R10000", Mips::AFL_EXT_10000}, 2240 {"NEC VR4100", Mips::AFL_EXT_4100}, 2241 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111}, 2242 {"NEC VR4120", Mips::AFL_EXT_4120}, 2243 {"NEC VR5400", Mips::AFL_EXT_5400}, 2244 {"NEC VR5500", Mips::AFL_EXT_5500}, 2245 {"RMI Xlr", Mips::AFL_EXT_XLR}, 2246 {"Toshiba R3900", Mips::AFL_EXT_3900} 2247 }; 2248 2249 static const EnumEntry<unsigned> ElfMipsASEFlags[] = { 2250 {"DSP", Mips::AFL_ASE_DSP}, 2251 {"DSPR2", Mips::AFL_ASE_DSPR2}, 2252 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA}, 2253 {"MCU", Mips::AFL_ASE_MCU}, 2254 {"MDMX", Mips::AFL_ASE_MDMX}, 2255 {"MIPS-3D", Mips::AFL_ASE_MIPS3D}, 2256 {"MT", Mips::AFL_ASE_MT}, 2257 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS}, 2258 {"VZ", Mips::AFL_ASE_VIRT}, 2259 {"MSA", Mips::AFL_ASE_MSA}, 2260 {"MIPS16", Mips::AFL_ASE_MIPS16}, 2261 {"microMIPS", Mips::AFL_ASE_MICROMIPS}, 2262 {"XPA", Mips::AFL_ASE_XPA}, 2263 {"CRC", Mips::AFL_ASE_CRC}, 2264 {"GINV", Mips::AFL_ASE_GINV}, 2265 }; 2266 2267 static const EnumEntry<unsigned> ElfMipsFpABIType[] = { 2268 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY}, 2269 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE}, 2270 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE}, 2271 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT}, 2272 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)", 2273 Mips::Val_GNU_MIPS_ABI_FP_OLD_64}, 2274 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX}, 2275 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64}, 2276 {"Hard float compat (32-bit CPU, 64-bit FPU)", 2277 Mips::Val_GNU_MIPS_ABI_FP_64A} 2278 }; 2279 2280 static const EnumEntry<unsigned> ElfMipsFlags1[] { 2281 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG}, 2282 }; 2283 2284 static int getMipsRegisterSize(uint8_t Flag) { 2285 switch (Flag) { 2286 case Mips::AFL_REG_NONE: 2287 return 0; 2288 case Mips::AFL_REG_32: 2289 return 32; 2290 case Mips::AFL_REG_64: 2291 return 64; 2292 case Mips::AFL_REG_128: 2293 return 128; 2294 default: 2295 return -1; 2296 } 2297 } 2298 2299 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { 2300 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2301 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags"); 2302 if (!Shdr) { 2303 W.startLine() << "There is no .MIPS.abiflags section in the file.\n"; 2304 return; 2305 } 2306 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2307 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) { 2308 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n"; 2309 return; 2310 } 2311 2312 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data()); 2313 2314 raw_ostream &OS = W.getOStream(); 2315 DictScope GS(W, "MIPS ABI Flags"); 2316 2317 W.printNumber("Version", Flags->version); 2318 W.startLine() << "ISA: "; 2319 if (Flags->isa_rev <= 1) 2320 OS << format("MIPS%u", Flags->isa_level); 2321 else 2322 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev); 2323 OS << "\n"; 2324 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType)); 2325 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags)); 2326 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType)); 2327 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size)); 2328 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size)); 2329 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size)); 2330 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1)); 2331 W.printHex("Flags 2", Flags->flags2); 2332 } 2333 2334 template <class ELFT> 2335 static void printMipsReginfoData(ScopedPrinter &W, 2336 const Elf_Mips_RegInfo<ELFT> &Reginfo) { 2337 W.printHex("GP", Reginfo.ri_gp_value); 2338 W.printHex("General Mask", Reginfo.ri_gprmask); 2339 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]); 2340 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]); 2341 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]); 2342 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]); 2343 } 2344 2345 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() { 2346 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2347 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo"); 2348 if (!Shdr) { 2349 W.startLine() << "There is no .reginfo section in the file.\n"; 2350 return; 2351 } 2352 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2353 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) { 2354 W.startLine() << "The .reginfo section has a wrong size.\n"; 2355 return; 2356 } 2357 2358 DictScope GS(W, "MIPS RegInfo"); 2359 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data()); 2360 printMipsReginfoData(W, *Reginfo); 2361 } 2362 2363 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() { 2364 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2365 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options"); 2366 if (!Shdr) { 2367 W.startLine() << "There is no .MIPS.options section in the file.\n"; 2368 return; 2369 } 2370 2371 DictScope GS(W, "MIPS Options"); 2372 2373 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2374 while (!Sec.empty()) { 2375 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) { 2376 W.startLine() << "The .MIPS.options section has a wrong size.\n"; 2377 return; 2378 } 2379 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data()); 2380 DictScope GS(W, getElfMipsOptionsOdkType(O->kind)); 2381 switch (O->kind) { 2382 case ODK_REGINFO: 2383 printMipsReginfoData(W, O->getRegInfo()); 2384 break; 2385 default: 2386 W.startLine() << "Unsupported MIPS options tag.\n"; 2387 break; 2388 } 2389 Sec = Sec.slice(O->size); 2390 } 2391 } 2392 2393 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const { 2394 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2395 const Elf_Shdr *StackMapSection = nullptr; 2396 for (const auto &Sec : unwrapOrError(Obj->sections())) { 2397 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2398 if (Name == ".llvm_stackmaps") { 2399 StackMapSection = &Sec; 2400 break; 2401 } 2402 } 2403 2404 if (!StackMapSection) 2405 return; 2406 2407 ArrayRef<uint8_t> StackMapContentsArray = 2408 unwrapOrError(Obj->getSectionContents(StackMapSection)); 2409 2410 prettyPrintStackMap( 2411 W, StackMapParser<ELFT::TargetEndianness>(StackMapContentsArray)); 2412 } 2413 2414 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() { 2415 ELFDumperStyle->printGroupSections(ObjF->getELFFile()); 2416 } 2417 2418 template <class ELFT> void ELFDumper<ELFT>::printAddrsig() { 2419 ELFDumperStyle->printAddrsig(ObjF->getELFFile()); 2420 } 2421 2422 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1, 2423 StringRef Str2) { 2424 OS.PadToColumn(2u); 2425 OS << Str1; 2426 OS.PadToColumn(37u); 2427 OS << Str2 << "\n"; 2428 OS.flush(); 2429 } 2430 2431 template <class ELFT> 2432 static std::string getSectionHeadersNumString(const ELFFile<ELFT> *Obj) { 2433 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2434 if (ElfHeader->e_shnum != 0) 2435 return to_string(ElfHeader->e_shnum); 2436 2437 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2438 if (Arr.empty()) 2439 return "0"; 2440 return "0 (" + to_string(Arr[0].sh_size) + ")"; 2441 } 2442 2443 template <class ELFT> 2444 static std::string getSectionHeaderTableIndexString(const ELFFile<ELFT> *Obj) { 2445 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2446 if (ElfHeader->e_shstrndx != SHN_XINDEX) 2447 return to_string(ElfHeader->e_shstrndx); 2448 2449 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2450 if (Arr.empty()) 2451 return "65535 (corrupt: out of range)"; 2452 return to_string(ElfHeader->e_shstrndx) + " (" + to_string(Arr[0].sh_link) + ")"; 2453 } 2454 2455 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 2456 const Elf_Ehdr *e = Obj->getHeader(); 2457 OS << "ELF Header:\n"; 2458 OS << " Magic: "; 2459 std::string Str; 2460 for (int i = 0; i < ELF::EI_NIDENT; i++) 2461 OS << format(" %02x", static_cast<int>(e->e_ident[i])); 2462 OS << "\n"; 2463 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 2464 printFields(OS, "Class:", Str); 2465 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding)); 2466 printFields(OS, "Data:", Str); 2467 OS.PadToColumn(2u); 2468 OS << "Version:"; 2469 OS.PadToColumn(37u); 2470 OS << to_hexString(e->e_ident[ELF::EI_VERSION]); 2471 if (e->e_version == ELF::EV_CURRENT) 2472 OS << " (current)"; 2473 OS << "\n"; 2474 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI)); 2475 printFields(OS, "OS/ABI:", Str); 2476 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]); 2477 printFields(OS, "ABI Version:", Str); 2478 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType)); 2479 printFields(OS, "Type:", Str); 2480 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType)); 2481 printFields(OS, "Machine:", Str); 2482 Str = "0x" + to_hexString(e->e_version); 2483 printFields(OS, "Version:", Str); 2484 Str = "0x" + to_hexString(e->e_entry); 2485 printFields(OS, "Entry point address:", Str); 2486 Str = to_string(e->e_phoff) + " (bytes into file)"; 2487 printFields(OS, "Start of program headers:", Str); 2488 Str = to_string(e->e_shoff) + " (bytes into file)"; 2489 printFields(OS, "Start of section headers:", Str); 2490 std::string ElfFlags; 2491 if (e->e_machine == EM_MIPS) 2492 ElfFlags = 2493 printFlags(e->e_flags, makeArrayRef(ElfHeaderMipsFlags), 2494 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 2495 unsigned(ELF::EF_MIPS_MACH)); 2496 else if (e->e_machine == EM_RISCV) 2497 ElfFlags = printFlags(e->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); 2498 Str = "0x" + to_hexString(e->e_flags); 2499 if (!ElfFlags.empty()) 2500 Str = Str + ", " + ElfFlags; 2501 printFields(OS, "Flags:", Str); 2502 Str = to_string(e->e_ehsize) + " (bytes)"; 2503 printFields(OS, "Size of this header:", Str); 2504 Str = to_string(e->e_phentsize) + " (bytes)"; 2505 printFields(OS, "Size of program headers:", Str); 2506 Str = to_string(e->e_phnum); 2507 printFields(OS, "Number of program headers:", Str); 2508 Str = to_string(e->e_shentsize) + " (bytes)"; 2509 printFields(OS, "Size of section headers:", Str); 2510 Str = getSectionHeadersNumString(Obj); 2511 printFields(OS, "Number of section headers:", Str); 2512 Str = getSectionHeaderTableIndexString(Obj); 2513 printFields(OS, "Section header string table index:", Str); 2514 } 2515 2516 namespace { 2517 struct GroupMember { 2518 StringRef Name; 2519 uint64_t Index; 2520 }; 2521 2522 struct GroupSection { 2523 StringRef Name; 2524 std::string Signature; 2525 uint64_t ShName; 2526 uint64_t Index; 2527 uint32_t Link; 2528 uint32_t Info; 2529 uint32_t Type; 2530 std::vector<GroupMember> Members; 2531 }; 2532 2533 template <class ELFT> 2534 std::vector<GroupSection> getGroups(const ELFFile<ELFT> *Obj) { 2535 using Elf_Shdr = typename ELFT::Shdr; 2536 using Elf_Sym = typename ELFT::Sym; 2537 using Elf_Word = typename ELFT::Word; 2538 2539 std::vector<GroupSection> Ret; 2540 uint64_t I = 0; 2541 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2542 ++I; 2543 if (Sec.sh_type != ELF::SHT_GROUP) 2544 continue; 2545 2546 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2547 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 2548 const Elf_Sym *Sym = 2549 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 2550 auto Data = 2551 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 2552 2553 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2554 StringRef Signature = StrTable.data() + Sym->st_name; 2555 Ret.push_back({Name, 2556 maybeDemangle(Signature), 2557 Sec.sh_name, 2558 I - 1, 2559 Sec.sh_link, 2560 Sec.sh_info, 2561 Data[0], 2562 {}}); 2563 2564 std::vector<GroupMember> &GM = Ret.back().Members; 2565 for (uint32_t Ndx : Data.slice(1)) { 2566 auto Sec = unwrapOrError(Obj->getSection(Ndx)); 2567 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 2568 GM.push_back({Name, Ndx}); 2569 } 2570 } 2571 return Ret; 2572 } 2573 2574 DenseMap<uint64_t, const GroupSection *> 2575 mapSectionsToGroups(ArrayRef<GroupSection> Groups) { 2576 DenseMap<uint64_t, const GroupSection *> Ret; 2577 for (const GroupSection &G : Groups) 2578 for (const GroupMember &GM : G.Members) 2579 Ret.insert({GM.Index, &G}); 2580 return Ret; 2581 } 2582 2583 } // namespace 2584 2585 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) { 2586 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 2587 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 2588 for (const GroupSection &G : V) { 2589 OS << "\n" 2590 << getGroupType(G.Type) << " group section [" 2591 << format_decimal(G.Index, 5) << "] `" << G.Name << "' [" << G.Signature 2592 << "] contains " << G.Members.size() << " sections:\n" 2593 << " [Index] Name\n"; 2594 for (const GroupMember &GM : G.Members) { 2595 const GroupSection *MainGroup = Map[GM.Index]; 2596 if (MainGroup != &G) { 2597 OS.flush(); 2598 errs() << "Error: section [" << format_decimal(GM.Index, 5) 2599 << "] in group section [" << format_decimal(G.Index, 5) 2600 << "] already in group section [" 2601 << format_decimal(MainGroup->Index, 5) << "]"; 2602 errs().flush(); 2603 continue; 2604 } 2605 OS << " [" << format_decimal(GM.Index, 5) << "] " << GM.Name << "\n"; 2606 } 2607 } 2608 2609 if (V.empty()) 2610 OS << "There are no section groups in this file.\n"; 2611 } 2612 2613 template <class ELFT> 2614 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 2615 const Elf_Rela &R, bool IsRela) { 2616 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab)); 2617 std::string TargetName; 2618 if (Sym && Sym->getType() == ELF::STT_SECTION) { 2619 const Elf_Shdr *Sec = unwrapOrError( 2620 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 2621 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 2622 } else if (Sym) { 2623 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 2624 TargetName = this->dumper()->getFullSymbolName( 2625 Sym, StrTable, SymTab->sh_type == SHT_DYNSYM /* IsDynamic */); 2626 } 2627 printRelocation(Obj, Sym, TargetName, R, IsRela); 2628 } 2629 2630 template <class ELFT> 2631 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Sym *Sym, 2632 StringRef SymbolName, const Elf_Rela &R, 2633 bool IsRela) { 2634 // First two fields are bit width dependent. The rest of them are fixed width. 2635 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 2636 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 2637 unsigned Width = ELFT::Is64Bits ? 16 : 8; 2638 2639 Fields[0].Str = to_string(format_hex_no_prefix(R.r_offset, Width)); 2640 Fields[1].Str = to_string(format_hex_no_prefix(R.r_info, Width)); 2641 2642 SmallString<32> RelocName; 2643 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 2644 Fields[2].Str = RelocName.c_str(); 2645 2646 if (Sym && (!SymbolName.empty() || Sym->getValue() != 0)) 2647 Fields[3].Str = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 2648 2649 Fields[4].Str = SymbolName; 2650 for (const Field &F : Fields) 2651 printField(F); 2652 2653 std::string Addend; 2654 if (IsRela) { 2655 int64_t RelAddend = R.r_addend; 2656 if (!SymbolName.empty()) { 2657 if (R.r_addend < 0) { 2658 Addend = " - "; 2659 RelAddend = std::abs(RelAddend); 2660 } else 2661 Addend = " + "; 2662 } 2663 2664 Addend += to_hexString(RelAddend, false); 2665 } 2666 OS << Addend << "\n"; 2667 } 2668 2669 template <class ELFT> void GNUStyle<ELFT>::printRelocHeader(unsigned SType) { 2670 bool IsRela = SType == ELF::SHT_RELA || SType == ELF::SHT_ANDROID_RELA; 2671 bool IsRelr = SType == ELF::SHT_RELR || SType == ELF::SHT_ANDROID_RELR; 2672 if (ELFT::Is64Bits) 2673 OS << " "; 2674 else 2675 OS << " "; 2676 if (IsRelr && opts::RawRelr) 2677 OS << "Data "; 2678 else 2679 OS << "Offset"; 2680 if (ELFT::Is64Bits) 2681 OS << " Info Type" 2682 << " Symbol's Value Symbol's Name"; 2683 else 2684 OS << " Info Type Sym. Value Symbol's Name"; 2685 if (IsRela) 2686 OS << " + Addend"; 2687 OS << "\n"; 2688 } 2689 2690 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) { 2691 bool HasRelocSections = false; 2692 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2693 if (Sec.sh_type != ELF::SHT_REL && 2694 Sec.sh_type != ELF::SHT_RELA && 2695 Sec.sh_type != ELF::SHT_RELR && 2696 Sec.sh_type != ELF::SHT_ANDROID_REL && 2697 Sec.sh_type != ELF::SHT_ANDROID_RELA && 2698 Sec.sh_type != ELF::SHT_ANDROID_RELR) 2699 continue; 2700 HasRelocSections = true; 2701 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2702 unsigned Entries = Sec.getEntityCount(); 2703 std::vector<Elf_Rela> AndroidRelas; 2704 if (Sec.sh_type == ELF::SHT_ANDROID_REL || 2705 Sec.sh_type == ELF::SHT_ANDROID_RELA) { 2706 // Android's packed relocation section needs to be unpacked first 2707 // to get the actual number of entries. 2708 AndroidRelas = unwrapOrError(Obj->android_relas(&Sec)); 2709 Entries = AndroidRelas.size(); 2710 } 2711 std::vector<Elf_Rela> RelrRelas; 2712 if (!opts::RawRelr && (Sec.sh_type == ELF::SHT_RELR || 2713 Sec.sh_type == ELF::SHT_ANDROID_RELR)) { 2714 // .relr.dyn relative relocation section needs to be unpacked first 2715 // to get the actual number of entries. 2716 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(&Sec)); 2717 RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 2718 Entries = RelrRelas.size(); 2719 } 2720 uintX_t Offset = Sec.sh_offset; 2721 OS << "\nRelocation section '" << Name << "' at offset 0x" 2722 << to_hexString(Offset, false) << " contains " << Entries 2723 << " entries:\n"; 2724 printRelocHeader(Sec.sh_type); 2725 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2726 switch (Sec.sh_type) { 2727 case ELF::SHT_REL: 2728 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) { 2729 Elf_Rela Rela; 2730 Rela.r_offset = R.r_offset; 2731 Rela.r_info = R.r_info; 2732 Rela.r_addend = 0; 2733 printRelocation(Obj, SymTab, Rela, false); 2734 } 2735 break; 2736 case ELF::SHT_RELA: 2737 for (const auto &R : unwrapOrError(Obj->relas(&Sec))) 2738 printRelocation(Obj, SymTab, R, true); 2739 break; 2740 case ELF::SHT_RELR: 2741 case ELF::SHT_ANDROID_RELR: 2742 if (opts::RawRelr) 2743 for (const auto &R : unwrapOrError(Obj->relrs(&Sec))) 2744 OS << to_string(format_hex_no_prefix(R, ELFT::Is64Bits ? 16 : 8)) 2745 << "\n"; 2746 else 2747 for (const auto &R : RelrRelas) 2748 printRelocation(Obj, SymTab, R, false); 2749 break; 2750 case ELF::SHT_ANDROID_REL: 2751 case ELF::SHT_ANDROID_RELA: 2752 for (const auto &R : AndroidRelas) 2753 printRelocation(Obj, SymTab, R, Sec.sh_type == ELF::SHT_ANDROID_RELA); 2754 break; 2755 } 2756 } 2757 if (!HasRelocSections) 2758 OS << "\nThere are no relocations in this file.\n"; 2759 } 2760 2761 // Print the offset of a particular section from anyone of the ranges: 2762 // [SHT_LOOS, SHT_HIOS], [SHT_LOPROC, SHT_HIPROC], [SHT_LOUSER, SHT_HIUSER]. 2763 // If 'Type' does not fall within any of those ranges, then a string is 2764 // returned as '<unknown>' followed by the type value. 2765 static std::string getSectionTypeOffsetString(unsigned Type) { 2766 if (Type >= SHT_LOOS && Type <= SHT_HIOS) 2767 return "LOOS+0x" + to_hexString(Type - SHT_LOOS); 2768 else if (Type >= SHT_LOPROC && Type <= SHT_HIPROC) 2769 return "LOPROC+0x" + to_hexString(Type - SHT_LOPROC); 2770 else if (Type >= SHT_LOUSER && Type <= SHT_HIUSER) 2771 return "LOUSER+0x" + to_hexString(Type - SHT_LOUSER); 2772 return "0x" + to_hexString(Type) + ": <unknown>"; 2773 } 2774 2775 static std::string getSectionTypeString(unsigned Arch, unsigned Type) { 2776 using namespace ELF; 2777 2778 switch (Arch) { 2779 case EM_ARM: 2780 switch (Type) { 2781 case SHT_ARM_EXIDX: 2782 return "ARM_EXIDX"; 2783 case SHT_ARM_PREEMPTMAP: 2784 return "ARM_PREEMPTMAP"; 2785 case SHT_ARM_ATTRIBUTES: 2786 return "ARM_ATTRIBUTES"; 2787 case SHT_ARM_DEBUGOVERLAY: 2788 return "ARM_DEBUGOVERLAY"; 2789 case SHT_ARM_OVERLAYSECTION: 2790 return "ARM_OVERLAYSECTION"; 2791 } 2792 break; 2793 case EM_X86_64: 2794 switch (Type) { 2795 case SHT_X86_64_UNWIND: 2796 return "X86_64_UNWIND"; 2797 } 2798 break; 2799 case EM_MIPS: 2800 case EM_MIPS_RS3_LE: 2801 switch (Type) { 2802 case SHT_MIPS_REGINFO: 2803 return "MIPS_REGINFO"; 2804 case SHT_MIPS_OPTIONS: 2805 return "MIPS_OPTIONS"; 2806 case SHT_MIPS_DWARF: 2807 return "MIPS_DWARF"; 2808 case SHT_MIPS_ABIFLAGS: 2809 return "MIPS_ABIFLAGS"; 2810 } 2811 break; 2812 } 2813 switch (Type) { 2814 case SHT_NULL: 2815 return "NULL"; 2816 case SHT_PROGBITS: 2817 return "PROGBITS"; 2818 case SHT_SYMTAB: 2819 return "SYMTAB"; 2820 case SHT_STRTAB: 2821 return "STRTAB"; 2822 case SHT_RELA: 2823 return "RELA"; 2824 case SHT_HASH: 2825 return "HASH"; 2826 case SHT_DYNAMIC: 2827 return "DYNAMIC"; 2828 case SHT_NOTE: 2829 return "NOTE"; 2830 case SHT_NOBITS: 2831 return "NOBITS"; 2832 case SHT_REL: 2833 return "REL"; 2834 case SHT_SHLIB: 2835 return "SHLIB"; 2836 case SHT_DYNSYM: 2837 return "DYNSYM"; 2838 case SHT_INIT_ARRAY: 2839 return "INIT_ARRAY"; 2840 case SHT_FINI_ARRAY: 2841 return "FINI_ARRAY"; 2842 case SHT_PREINIT_ARRAY: 2843 return "PREINIT_ARRAY"; 2844 case SHT_GROUP: 2845 return "GROUP"; 2846 case SHT_SYMTAB_SHNDX: 2847 return "SYMTAB SECTION INDICES"; 2848 case SHT_ANDROID_REL: 2849 return "ANDROID_REL"; 2850 case SHT_ANDROID_RELA: 2851 return "ANDROID_RELA"; 2852 case SHT_RELR: 2853 case SHT_ANDROID_RELR: 2854 return "RELR"; 2855 case SHT_LLVM_ODRTAB: 2856 return "LLVM_ODRTAB"; 2857 case SHT_LLVM_LINKER_OPTIONS: 2858 return "LLVM_LINKER_OPTIONS"; 2859 case SHT_LLVM_CALL_GRAPH_PROFILE: 2860 return "LLVM_CALL_GRAPH_PROFILE"; 2861 case SHT_LLVM_ADDRSIG: 2862 return "LLVM_ADDRSIG"; 2863 // FIXME: Parse processor specific GNU attributes 2864 case SHT_GNU_ATTRIBUTES: 2865 return "ATTRIBUTES"; 2866 case SHT_GNU_HASH: 2867 return "GNU_HASH"; 2868 case SHT_GNU_verdef: 2869 return "VERDEF"; 2870 case SHT_GNU_verneed: 2871 return "VERNEED"; 2872 case SHT_GNU_versym: 2873 return "VERSYM"; 2874 default: 2875 return getSectionTypeOffsetString(Type); 2876 } 2877 return ""; 2878 } 2879 2880 template <class ELFT> 2881 void GNUStyle<ELFT>::printSectionHeaders(const ELFO *Obj) { 2882 unsigned Bias = ELFT::Is64Bits ? 0 : 8; 2883 ArrayRef<Elf_Shdr> Sections = unwrapOrError(Obj->sections()); 2884 OS << "There are " << to_string(Sections.size()) 2885 << " section headers, starting at offset " 2886 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n"; 2887 OS << "Section Headers:\n"; 2888 Field Fields[11] = { 2889 {"[Nr]", 2}, {"Name", 7}, {"Type", 25}, 2890 {"Address", 41}, {"Off", 58 - Bias}, {"Size", 65 - Bias}, 2891 {"ES", 72 - Bias}, {"Flg", 75 - Bias}, {"Lk", 79 - Bias}, 2892 {"Inf", 82 - Bias}, {"Al", 86 - Bias}}; 2893 for (auto &F : Fields) 2894 printField(F); 2895 OS << "\n"; 2896 2897 size_t SectionIndex = 0; 2898 for (const Elf_Shdr &Sec : Sections) { 2899 Fields[0].Str = to_string(SectionIndex); 2900 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec)); 2901 Fields[2].Str = 2902 getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type); 2903 Fields[3].Str = 2904 to_string(format_hex_no_prefix(Sec.sh_addr, ELFT::Is64Bits ? 16 : 8)); 2905 Fields[4].Str = to_string(format_hex_no_prefix(Sec.sh_offset, 6)); 2906 Fields[5].Str = to_string(format_hex_no_prefix(Sec.sh_size, 6)); 2907 Fields[6].Str = to_string(format_hex_no_prefix(Sec.sh_entsize, 2)); 2908 Fields[7].Str = getGNUFlags(Sec.sh_flags); 2909 Fields[8].Str = to_string(Sec.sh_link); 2910 Fields[9].Str = to_string(Sec.sh_info); 2911 Fields[10].Str = to_string(Sec.sh_addralign); 2912 2913 OS.PadToColumn(Fields[0].Column); 2914 OS << "[" << right_justify(Fields[0].Str, 2) << "]"; 2915 for (int i = 1; i < 7; i++) 2916 printField(Fields[i]); 2917 OS.PadToColumn(Fields[7].Column); 2918 OS << right_justify(Fields[7].Str, 3); 2919 OS.PadToColumn(Fields[8].Column); 2920 OS << right_justify(Fields[8].Str, 2); 2921 OS.PadToColumn(Fields[9].Column); 2922 OS << right_justify(Fields[9].Str, 3); 2923 OS.PadToColumn(Fields[10].Column); 2924 OS << right_justify(Fields[10].Str, 2); 2925 OS << "\n"; 2926 ++SectionIndex; 2927 } 2928 OS << "Key to Flags:\n" 2929 << " W (write), A (alloc), X (execute), M (merge), S (strings), l " 2930 "(large)\n" 2931 << " I (info), L (link order), G (group), T (TLS), E (exclude),\ 2932 x (unknown)\n" 2933 << " O (extra OS processing required) o (OS specific),\ 2934 p (processor specific)\n"; 2935 } 2936 2937 template <class ELFT> 2938 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name, 2939 size_t Entries) { 2940 if (!Name.empty()) 2941 OS << "\nSymbol table '" << Name << "' contains " << Entries 2942 << " entries:\n"; 2943 else 2944 OS << "\n Symbol table for image:\n"; 2945 2946 if (ELFT::Is64Bits) 2947 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2948 else 2949 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2950 } 2951 2952 template <class ELFT> 2953 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj, 2954 const Elf_Sym *Symbol, 2955 const Elf_Sym *FirstSym) { 2956 unsigned SectionIndex = Symbol->st_shndx; 2957 switch (SectionIndex) { 2958 case ELF::SHN_UNDEF: 2959 return "UND"; 2960 case ELF::SHN_ABS: 2961 return "ABS"; 2962 case ELF::SHN_COMMON: 2963 return "COM"; 2964 case ELF::SHN_XINDEX: 2965 return to_string( 2966 format_decimal(unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 2967 Symbol, FirstSym, this->dumper()->getShndxTable())), 2968 3)); 2969 default: 2970 // Find if: 2971 // Processor specific 2972 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC) 2973 return std::string("PRC[0x") + 2974 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2975 // OS specific 2976 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS) 2977 return std::string("OS[0x") + 2978 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2979 // Architecture reserved: 2980 if (SectionIndex >= ELF::SHN_LORESERVE && 2981 SectionIndex <= ELF::SHN_HIRESERVE) 2982 return std::string("RSV[0x") + 2983 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2984 // A normal section with an index 2985 return to_string(format_decimal(SectionIndex, 3)); 2986 } 2987 } 2988 2989 template <class ELFT> 2990 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 2991 const Elf_Sym *FirstSym, StringRef StrTable, 2992 bool IsDynamic) { 2993 static int Idx = 0; 2994 static bool Dynamic = true; 2995 2996 // If this function was called with a different value from IsDynamic 2997 // from last call, happens when we move from dynamic to static symbol 2998 // table, "Num" field should be reset. 2999 if (!Dynamic != !IsDynamic) { 3000 Idx = 0; 3001 Dynamic = false; 3002 } 3003 3004 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3005 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias, 3006 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias}; 3007 Fields[0].Str = to_string(format_decimal(Idx++, 6)) + ":"; 3008 Fields[1].Str = to_string( 3009 format_hex_no_prefix(Symbol->st_value, ELFT::Is64Bits ? 16 : 8)); 3010 Fields[2].Str = to_string(format_decimal(Symbol->st_size, 5)); 3011 3012 unsigned char SymbolType = Symbol->getType(); 3013 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3014 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3015 Fields[3].Str = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3016 else 3017 Fields[3].Str = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3018 3019 Fields[4].Str = 3020 printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3021 Fields[5].Str = 3022 printEnum(Symbol->getVisibility(), makeArrayRef(ElfSymbolVisibilities)); 3023 Fields[6].Str = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3024 Fields[7].Str = 3025 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 3026 for (auto &Entry : Fields) 3027 printField(Entry); 3028 OS << "\n"; 3029 } 3030 3031 template <class ELFT> 3032 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, 3033 uint32_t Sym, StringRef StrTable, 3034 uint32_t Bucket) { 3035 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3036 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias, 3037 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias}; 3038 Fields[0].Str = to_string(format_decimal(Sym, 5)); 3039 Fields[1].Str = to_string(format_decimal(Bucket, 3)) + ":"; 3040 3041 const auto Symbol = FirstSym + Sym; 3042 Fields[2].Str = to_string( 3043 format_hex_no_prefix(Symbol->st_value, ELFT::Is64Bits ? 18 : 8)); 3044 Fields[3].Str = to_string(format_decimal(Symbol->st_size, 5)); 3045 3046 unsigned char SymbolType = Symbol->getType(); 3047 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3048 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3049 Fields[4].Str = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3050 else 3051 Fields[4].Str = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3052 3053 Fields[5].Str = 3054 printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3055 Fields[6].Str = 3056 printEnum(Symbol->getVisibility(), makeArrayRef(ElfSymbolVisibilities)); 3057 Fields[7].Str = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3058 Fields[8].Str = this->dumper()->getFullSymbolName(Symbol, StrTable, true); 3059 3060 for (auto &Entry : Fields) 3061 printField(Entry); 3062 OS << "\n"; 3063 } 3064 3065 template <class ELFT> 3066 void GNUStyle<ELFT>::printSymbols(const ELFO *Obj, bool PrintSymbols, 3067 bool PrintDynamicSymbols) { 3068 if (!PrintSymbols && !PrintDynamicSymbols) 3069 return; 3070 // GNU readelf prints both the .dynsym and .symtab with --symbols. 3071 this->dumper()->printSymbolsHelper(true); 3072 if (PrintSymbols) 3073 this->dumper()->printSymbolsHelper(false); 3074 } 3075 3076 template <class ELFT> void GNUStyle<ELFT>::printHashSymbols(const ELFO *Obj) { 3077 if (this->dumper()->getDynamicStringTable().empty()) 3078 return; 3079 auto StringTable = this->dumper()->getDynamicStringTable(); 3080 auto DynSyms = this->dumper()->dynamic_symbols(); 3081 3082 // Try printing .hash 3083 if (auto SysVHash = this->dumper()->getHashTable()) { 3084 OS << "\n Symbol table of .hash for image:\n"; 3085 if (ELFT::Is64Bits) 3086 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3087 else 3088 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3089 OS << "\n"; 3090 3091 auto Buckets = SysVHash->buckets(); 3092 auto Chains = SysVHash->chains(); 3093 for (uint32_t Buc = 0; Buc < SysVHash->nbucket; Buc++) { 3094 if (Buckets[Buc] == ELF::STN_UNDEF) 3095 continue; 3096 for (uint32_t Ch = Buckets[Buc]; Ch < SysVHash->nchain; Ch = Chains[Ch]) { 3097 if (Ch == ELF::STN_UNDEF) 3098 break; 3099 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc); 3100 } 3101 } 3102 } 3103 3104 // Try printing .gnu.hash 3105 if (auto GnuHash = this->dumper()->getGnuHashTable()) { 3106 OS << "\n Symbol table of .gnu.hash for image:\n"; 3107 if (ELFT::Is64Bits) 3108 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3109 else 3110 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3111 OS << "\n"; 3112 auto Buckets = GnuHash->buckets(); 3113 for (uint32_t Buc = 0; Buc < GnuHash->nbuckets; Buc++) { 3114 if (Buckets[Buc] == ELF::STN_UNDEF) 3115 continue; 3116 uint32_t Index = Buckets[Buc]; 3117 uint32_t GnuHashable = Index - GnuHash->symndx; 3118 // Print whole chain 3119 while (true) { 3120 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc); 3121 // Chain ends at symbol with stopper bit 3122 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1) 3123 break; 3124 } 3125 } 3126 } 3127 } 3128 3129 static inline std::string printPhdrFlags(unsigned Flag) { 3130 std::string Str; 3131 Str = (Flag & PF_R) ? "R" : " "; 3132 Str += (Flag & PF_W) ? "W" : " "; 3133 Str += (Flag & PF_X) ? "E" : " "; 3134 return Str; 3135 } 3136 3137 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO 3138 // PT_TLS must only have SHF_TLS sections 3139 template <class ELFT> 3140 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr, 3141 const Elf_Shdr &Sec) { 3142 return (((Sec.sh_flags & ELF::SHF_TLS) && 3143 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) || 3144 (Phdr.p_type == ELF::PT_GNU_RELRO))) || 3145 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS)); 3146 } 3147 3148 // Non-SHT_NOBITS must have its offset inside the segment 3149 // Only non-zero section can be at end of segment 3150 template <class ELFT> 3151 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3152 if (Sec.sh_type == ELF::SHT_NOBITS) 3153 return true; 3154 bool IsSpecial = 3155 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3156 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3157 auto SectionSize = 3158 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3159 if (Sec.sh_offset >= Phdr.p_offset) 3160 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset) 3161 /*only non-zero sized sections at end*/ && 3162 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz)); 3163 return false; 3164 } 3165 3166 // SHF_ALLOC must have VMA inside segment 3167 // Only non-zero section can be at end of segment 3168 template <class ELFT> 3169 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3170 if (!(Sec.sh_flags & ELF::SHF_ALLOC)) 3171 return true; 3172 bool IsSpecial = 3173 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3174 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3175 auto SectionSize = 3176 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3177 if (Sec.sh_addr >= Phdr.p_vaddr) 3178 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) && 3179 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz)); 3180 return false; 3181 } 3182 3183 // No section with zero size must be at start or end of PT_DYNAMIC 3184 template <class ELFT> 3185 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3186 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0) 3187 return true; 3188 // Is section within the phdr both based on offset and VMA ? 3189 return ((Sec.sh_type == ELF::SHT_NOBITS) || 3190 (Sec.sh_offset > Phdr.p_offset && 3191 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) && 3192 (!(Sec.sh_flags & ELF::SHF_ALLOC) || 3193 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz)); 3194 } 3195 3196 template <class ELFT> 3197 void GNUStyle<ELFT>::printProgramHeaders( 3198 const ELFO *Obj, bool PrintProgramHeaders, 3199 cl::boolOrDefault PrintSectionMapping) { 3200 if (PrintProgramHeaders) 3201 printProgramHeaders(Obj); 3202 3203 // Display the section mapping along with the program headers, unless 3204 // -section-mapping is explicitly set to false. 3205 if (PrintSectionMapping != cl::BOU_FALSE) 3206 printSectionMapping(Obj); 3207 } 3208 3209 template <class ELFT> 3210 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3211 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3212 const Elf_Ehdr *Header = Obj->getHeader(); 3213 Field Fields[8] = {2, 17, 26, 37 + Bias, 3214 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias}; 3215 OS << "\nElf file type is " 3216 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n" 3217 << "Entry point " << format_hex(Header->e_entry, 3) << "\n" 3218 << "There are " << Header->e_phnum << " program headers," 3219 << " starting at offset " << Header->e_phoff << "\n\n" 3220 << "Program Headers:\n"; 3221 if (ELFT::Is64Bits) 3222 OS << " Type Offset VirtAddr PhysAddr " 3223 << " FileSiz MemSiz Flg Align\n"; 3224 else 3225 OS << " Type Offset VirtAddr PhysAddr FileSiz " 3226 << "MemSiz Flg Align\n"; 3227 3228 unsigned Width = ELFT::Is64Bits ? 18 : 10; 3229 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7; 3230 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) { 3231 Fields[0].Str = getElfPtType(Header->e_machine, Phdr.p_type); 3232 Fields[1].Str = to_string(format_hex(Phdr.p_offset, 8)); 3233 Fields[2].Str = to_string(format_hex(Phdr.p_vaddr, Width)); 3234 Fields[3].Str = to_string(format_hex(Phdr.p_paddr, Width)); 3235 Fields[4].Str = to_string(format_hex(Phdr.p_filesz, SizeWidth)); 3236 Fields[5].Str = to_string(format_hex(Phdr.p_memsz, SizeWidth)); 3237 Fields[6].Str = printPhdrFlags(Phdr.p_flags); 3238 Fields[7].Str = to_string(format_hex(Phdr.p_align, 1)); 3239 for (auto Field : Fields) 3240 printField(Field); 3241 if (Phdr.p_type == ELF::PT_INTERP) { 3242 OS << "\n [Requesting program interpreter: "; 3243 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]"; 3244 } 3245 OS << "\n"; 3246 } 3247 } 3248 3249 template <class ELFT> 3250 void GNUStyle<ELFT>::printSectionMapping(const ELFO *Obj) { 3251 OS << "\n Section to Segment mapping:\n Segment Sections...\n"; 3252 DenseSet<const Elf_Shdr *> BelongsToSegment; 3253 int Phnum = 0; 3254 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3255 std::string Sections; 3256 OS << format(" %2.2d ", Phnum++); 3257 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3258 // Check if each section is in a segment and then print mapping. 3259 // readelf additionally makes sure it does not print zero sized sections 3260 // at end of segments and for PT_DYNAMIC both start and end of section 3261 // .tbss must only be shown in PT_TLS section. 3262 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) && 3263 ((Sec.sh_flags & ELF::SHF_TLS) != 0) && 3264 Phdr.p_type != ELF::PT_TLS; 3265 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) && 3266 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) && 3267 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) { 3268 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " "; 3269 BelongsToSegment.insert(&Sec); 3270 } 3271 } 3272 OS << Sections << "\n"; 3273 OS.flush(); 3274 } 3275 3276 // Display sections that do not belong to a segment. 3277 std::string Sections; 3278 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3279 if (BelongsToSegment.find(&Sec) == BelongsToSegment.end()) 3280 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + ' '; 3281 } 3282 if (!Sections.empty()) { 3283 OS << " None " << Sections << '\n'; 3284 OS.flush(); 3285 } 3286 } 3287 3288 template <class ELFT> 3289 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R, 3290 bool IsRela) { 3291 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL()); 3292 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3293 std::string SymbolName = maybeDemangle( 3294 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()))); 3295 printRelocation(Obj, Sym, SymbolName, R, IsRela); 3296 } 3297 3298 template <class ELFT> 3299 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3300 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3301 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3302 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 3303 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3304 if (DynRelaRegion.Size > 0) { 3305 OS << "\n'RELA' relocation section at offset " 3306 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) - 3307 Obj->base(), 3308 1) << " contains " << DynRelaRegion.Size << " bytes:\n"; 3309 printRelocHeader(ELF::SHT_RELA); 3310 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3311 printDynamicRelocation(Obj, Rela, true); 3312 } 3313 if (DynRelRegion.Size > 0) { 3314 OS << "\n'REL' relocation section at offset " 3315 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) - 3316 Obj->base(), 3317 1) << " contains " << DynRelRegion.Size << " bytes:\n"; 3318 printRelocHeader(ELF::SHT_REL); 3319 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3320 Elf_Rela Rela; 3321 Rela.r_offset = Rel.r_offset; 3322 Rela.r_info = Rel.r_info; 3323 Rela.r_addend = 0; 3324 printDynamicRelocation(Obj, Rela, false); 3325 } 3326 } 3327 if (DynRelrRegion.Size > 0) { 3328 OS << "\n'RELR' relocation section at offset " 3329 << format_hex(reinterpret_cast<const uint8_t *>(DynRelrRegion.Addr) - 3330 Obj->base(), 3331 1) << " contains " << DynRelrRegion.Size << " bytes:\n"; 3332 printRelocHeader(ELF::SHT_REL); 3333 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 3334 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 3335 for (const Elf_Rela &Rela : RelrRelas) { 3336 printDynamicRelocation(Obj, Rela, false); 3337 } 3338 } 3339 if (DynPLTRelRegion.Size) { 3340 OS << "\n'PLT' relocation section at offset " 3341 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) - 3342 Obj->base(), 3343 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n"; 3344 } 3345 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) { 3346 printRelocHeader(ELF::SHT_RELA); 3347 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3348 printDynamicRelocation(Obj, Rela, true); 3349 } else { 3350 printRelocHeader(ELF::SHT_REL); 3351 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3352 Elf_Rela Rela; 3353 Rela.r_offset = Rel.r_offset; 3354 Rela.r_info = Rel.r_info; 3355 Rela.r_addend = 0; 3356 printDynamicRelocation(Obj, Rela, false); 3357 } 3358 } 3359 } 3360 3361 template <class ELFT> 3362 void GNUStyle<ELFT>::printVersionSymbolSection(const ELFFile<ELFT> *Obj, 3363 const Elf_Shdr *Sec) { 3364 if (!Sec) 3365 return; 3366 3367 StringRef SecName = unwrapOrError(Obj->getSectionName(Sec)); 3368 uint64_t Entries = Sec->sh_size / sizeof(Elf_Versym); 3369 3370 OS << "Version symbols section '" << SecName << "' " 3371 << "contains " << Entries << " entries:\n"; 3372 3373 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 3374 StringRef SymTabName = unwrapOrError(Obj->getSectionName(SymTab)); 3375 OS << " Addr: " << format_hex_no_prefix(Sec->sh_addr, 16) 3376 << " Offset: " << format_hex(Sec->sh_offset, 8) 3377 << " Link: " << Sec->sh_link << " (" << SymTabName << ")\n"; 3378 3379 const uint8_t *VersymBuf = 3380 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset); 3381 const ELFDumper<ELFT> *Dumper = this->dumper(); 3382 StringRef StrTable = Dumper->getDynamicStringTable(); 3383 3384 // readelf prints 4 entries per line. 3385 for (uint64_t VersymRow = 0; VersymRow < Entries; VersymRow += 4) { 3386 OS << " " << format_hex_no_prefix(VersymRow, 3) << ":"; 3387 3388 for (uint64_t VersymIndex = 0; 3389 (VersymIndex < 4) && (VersymIndex + VersymRow) < Entries; 3390 ++VersymIndex) { 3391 const Elf_Versym *Versym = 3392 reinterpret_cast<const Elf_Versym *>(VersymBuf); 3393 switch (Versym->vs_index) { 3394 case 0: 3395 OS << " 0 (*local*) "; 3396 break; 3397 case 1: 3398 OS << " 1 (*global*) "; 3399 break; 3400 default: 3401 OS << format("%4x%c", Versym->vs_index & VERSYM_VERSION, 3402 Versym->vs_index & VERSYM_HIDDEN ? 'h' : ' '); 3403 3404 bool IsDefault = true; 3405 std::string VersionName = Dumper->getSymbolVersionByIndex( 3406 StrTable, Versym->vs_index, IsDefault); 3407 3408 if (!VersionName.empty()) 3409 VersionName = "(" + VersionName + ")"; 3410 else 3411 VersionName = "(*invalid*)"; 3412 OS << left_justify(VersionName, 13); 3413 } 3414 VersymBuf += sizeof(Elf_Versym); 3415 } 3416 OS << '\n'; 3417 } 3418 OS << '\n'; 3419 } 3420 3421 template <class ELFT> 3422 void GNUStyle<ELFT>::printVersionDefinitionSection(const ELFFile<ELFT> *Obj, 3423 const Elf_Shdr *Sec) { 3424 if (!Sec) 3425 return; 3426 3427 StringRef SecName = unwrapOrError(Obj->getSectionName(Sec)); 3428 OS << "Dumper for " << SecName << " is not implemented\n"; 3429 } 3430 3431 template <class ELFT> 3432 void GNUStyle<ELFT>::printVersionDependencySection(const ELFFile<ELFT> *Obj, 3433 const Elf_Shdr *Sec) { 3434 if (!Sec) 3435 return; 3436 3437 StringRef SecName = unwrapOrError(Obj->getSectionName(Sec)); 3438 OS << "Dumper for " << SecName << " is not implemented\n"; 3439 } 3440 3441 // Hash histogram shows statistics of how efficient the hash was for the 3442 // dynamic symbol table. The table shows number of hash buckets for different 3443 // lengths of chains as absolute number and percentage of the total buckets. 3444 // Additionally cumulative coverage of symbols for each set of buckets. 3445 template <class ELFT> 3446 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3447 // Print histogram for .hash section 3448 if (const Elf_Hash *HashTable = this->dumper()->getHashTable()) { 3449 size_t NBucket = HashTable->nbucket; 3450 size_t NChain = HashTable->nchain; 3451 ArrayRef<Elf_Word> Buckets = HashTable->buckets(); 3452 ArrayRef<Elf_Word> Chains = HashTable->chains(); 3453 size_t TotalSyms = 0; 3454 // If hash table is correct, we have at least chains with 0 length 3455 size_t MaxChain = 1; 3456 size_t CumulativeNonZero = 0; 3457 3458 if (NChain == 0 || NBucket == 0) 3459 return; 3460 3461 std::vector<size_t> ChainLen(NBucket, 0); 3462 // Go over all buckets and and note chain lengths of each bucket (total 3463 // unique chain lengths). 3464 for (size_t B = 0; B < NBucket; B++) { 3465 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C]) 3466 if (MaxChain <= ++ChainLen[B]) 3467 MaxChain++; 3468 TotalSyms += ChainLen[B]; 3469 } 3470 3471 if (!TotalSyms) 3472 return; 3473 3474 std::vector<size_t> Count(MaxChain, 0) ; 3475 // Count how long is the chain for each bucket 3476 for (size_t B = 0; B < NBucket; B++) 3477 ++Count[ChainLen[B]]; 3478 // Print Number of buckets with each chain lengths and their cumulative 3479 // coverage of the symbols 3480 OS << "Histogram for bucket list length (total of " << NBucket 3481 << " buckets)\n" 3482 << " Length Number % of total Coverage\n"; 3483 for (size_t I = 0; I < MaxChain; I++) { 3484 CumulativeNonZero += Count[I] * I; 3485 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3486 (Count[I] * 100.0) / NBucket, 3487 (CumulativeNonZero * 100.0) / TotalSyms); 3488 } 3489 } 3490 3491 // Print histogram for .gnu.hash section 3492 if (const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable()) { 3493 size_t NBucket = GnuHashTable->nbuckets; 3494 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets(); 3495 unsigned NumSyms = this->dumper()->dynamic_symbols().size(); 3496 if (!NumSyms) 3497 return; 3498 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms); 3499 size_t Symndx = GnuHashTable->symndx; 3500 size_t TotalSyms = 0; 3501 size_t MaxChain = 1; 3502 size_t CumulativeNonZero = 0; 3503 3504 if (Chains.empty() || NBucket == 0) 3505 return; 3506 3507 std::vector<size_t> ChainLen(NBucket, 0); 3508 3509 for (size_t B = 0; B < NBucket; B++) { 3510 if (!Buckets[B]) 3511 continue; 3512 size_t Len = 1; 3513 for (size_t C = Buckets[B] - Symndx; 3514 C < Chains.size() && (Chains[C] & 1) == 0; C++) 3515 if (MaxChain < ++Len) 3516 MaxChain++; 3517 ChainLen[B] = Len; 3518 TotalSyms += Len; 3519 } 3520 MaxChain++; 3521 3522 if (!TotalSyms) 3523 return; 3524 3525 std::vector<size_t> Count(MaxChain, 0) ; 3526 for (size_t B = 0; B < NBucket; B++) 3527 ++Count[ChainLen[B]]; 3528 // Print Number of buckets with each chain lengths and their cumulative 3529 // coverage of the symbols 3530 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket 3531 << " buckets)\n" 3532 << " Length Number % of total Coverage\n"; 3533 for (size_t I = 0; I <MaxChain; I++) { 3534 CumulativeNonZero += Count[I] * I; 3535 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3536 (Count[I] * 100.0) / NBucket, 3537 (CumulativeNonZero * 100.0) / TotalSyms); 3538 } 3539 } 3540 } 3541 3542 template <class ELFT> 3543 void GNUStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 3544 OS << "GNUStyle::printCGProfile not implemented\n"; 3545 } 3546 3547 template <class ELFT> 3548 void GNUStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 3549 OS << "GNUStyle::printAddrsig not implemented\n"; 3550 } 3551 3552 static StringRef getGenericNoteTypeName(const uint32_t NT) { 3553 static const struct { 3554 uint32_t ID; 3555 const char *Name; 3556 } Notes[] = { 3557 {ELF::NT_VERSION, "NT_VERSION (version)"}, 3558 {ELF::NT_ARCH, "NT_ARCH (architecture)"}, 3559 {ELF::NT_GNU_BUILD_ATTRIBUTE_OPEN, "OPEN"}, 3560 {ELF::NT_GNU_BUILD_ATTRIBUTE_FUNC, "func"}, 3561 }; 3562 3563 for (const auto &Note : Notes) 3564 if (Note.ID == NT) 3565 return Note.Name; 3566 3567 return ""; 3568 } 3569 3570 static std::string getGNUNoteTypeName(const uint32_t NT) { 3571 static const struct { 3572 uint32_t ID; 3573 const char *Name; 3574 } Notes[] = { 3575 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"}, 3576 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"}, 3577 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"}, 3578 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"}, 3579 {ELF::NT_GNU_PROPERTY_TYPE_0, "NT_GNU_PROPERTY_TYPE_0 (property note)"}, 3580 }; 3581 3582 for (const auto &Note : Notes) 3583 if (Note.ID == NT) 3584 return std::string(Note.Name); 3585 3586 std::string string; 3587 raw_string_ostream OS(string); 3588 OS << format("Unknown note type (0x%08x)", NT); 3589 return OS.str(); 3590 } 3591 3592 static std::string getFreeBSDNoteTypeName(const uint32_t NT) { 3593 static const struct { 3594 uint32_t ID; 3595 const char *Name; 3596 } Notes[] = { 3597 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"}, 3598 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"}, 3599 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"}, 3600 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"}, 3601 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"}, 3602 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"}, 3603 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"}, 3604 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"}, 3605 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS, 3606 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"}, 3607 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"}, 3608 }; 3609 3610 for (const auto &Note : Notes) 3611 if (Note.ID == NT) 3612 return std::string(Note.Name); 3613 3614 std::string string; 3615 raw_string_ostream OS(string); 3616 OS << format("Unknown note type (0x%08x)", NT); 3617 return OS.str(); 3618 } 3619 3620 static std::string getAMDNoteTypeName(const uint32_t NT) { 3621 static const struct { 3622 uint32_t ID; 3623 const char *Name; 3624 } Notes[] = { 3625 {ELF::NT_AMD_AMDGPU_HSA_METADATA, 3626 "NT_AMD_AMDGPU_HSA_METADATA (HSA Metadata)"}, 3627 {ELF::NT_AMD_AMDGPU_ISA, 3628 "NT_AMD_AMDGPU_ISA (ISA Version)"}, 3629 {ELF::NT_AMD_AMDGPU_PAL_METADATA, 3630 "NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)"} 3631 }; 3632 3633 for (const auto &Note : Notes) 3634 if (Note.ID == NT) 3635 return std::string(Note.Name); 3636 3637 std::string string; 3638 raw_string_ostream OS(string); 3639 OS << format("Unknown note type (0x%08x)", NT); 3640 return OS.str(); 3641 } 3642 3643 static std::string getAMDGPUNoteTypeName(const uint32_t NT) { 3644 if (NT == ELF::NT_AMDGPU_METADATA) 3645 return std::string("NT_AMDGPU_METADATA (AMDGPU Metadata)"); 3646 3647 std::string string; 3648 raw_string_ostream OS(string); 3649 OS << format("Unknown note type (0x%08x)", NT); 3650 return OS.str(); 3651 } 3652 3653 template <typename ELFT> 3654 static std::string getGNUProperty(uint32_t Type, uint32_t DataSize, 3655 ArrayRef<uint8_t> Data) { 3656 std::string str; 3657 raw_string_ostream OS(str); 3658 uint32_t PrData; 3659 auto DumpBit = [&](uint32_t Flag, StringRef Name) { 3660 if (PrData & Flag) { 3661 PrData &= ~Flag; 3662 OS << Name; 3663 if (PrData) 3664 OS << ", "; 3665 } 3666 }; 3667 3668 switch (Type) { 3669 default: 3670 OS << format("<application-specific type 0x%x>", Type); 3671 return OS.str(); 3672 case GNU_PROPERTY_STACK_SIZE: { 3673 OS << "stack size: "; 3674 if (DataSize == sizeof(typename ELFT::uint)) 3675 OS << formatv("{0:x}", 3676 (uint64_t)(*(const typename ELFT::Addr *)Data.data())); 3677 else 3678 OS << format("<corrupt length: 0x%x>", DataSize); 3679 return OS.str(); 3680 } 3681 case GNU_PROPERTY_NO_COPY_ON_PROTECTED: 3682 OS << "no copy on protected"; 3683 if (DataSize) 3684 OS << format(" <corrupt length: 0x%x>", DataSize); 3685 return OS.str(); 3686 case GNU_PROPERTY_X86_FEATURE_1_AND: 3687 OS << "x86 feature: "; 3688 if (DataSize != 4) { 3689 OS << format("<corrupt length: 0x%x>", DataSize); 3690 return OS.str(); 3691 } 3692 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data()); 3693 if (PrData == 0) { 3694 OS << "<None>"; 3695 return OS.str(); 3696 } 3697 DumpBit(GNU_PROPERTY_X86_FEATURE_1_IBT, "IBT"); 3698 DumpBit(GNU_PROPERTY_X86_FEATURE_1_SHSTK, "SHSTK"); 3699 if (PrData) 3700 OS << format("<unknown flags: 0x%x>", PrData); 3701 return OS.str(); 3702 case GNU_PROPERTY_X86_ISA_1_NEEDED: 3703 case GNU_PROPERTY_X86_ISA_1_USED: 3704 OS << "x86 ISA " 3705 << (Type == GNU_PROPERTY_X86_ISA_1_NEEDED ? "needed: " : "used: "); 3706 if (DataSize != 4) { 3707 OS << format("<corrupt length: 0x%x>", DataSize); 3708 return OS.str(); 3709 } 3710 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data()); 3711 if (PrData == 0) { 3712 OS << "<None>"; 3713 return OS.str(); 3714 } 3715 DumpBit(GNU_PROPERTY_X86_ISA_1_CMOV, "CMOV"); 3716 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE, "SSE"); 3717 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE2, "SSE2"); 3718 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE3, "SSE3"); 3719 DumpBit(GNU_PROPERTY_X86_ISA_1_SSSE3, "SSSE3"); 3720 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_1, "SSE4_1"); 3721 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_2, "SSE4_2"); 3722 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX, "AVX"); 3723 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX2, "AVX2"); 3724 DumpBit(GNU_PROPERTY_X86_ISA_1_FMA, "FMA"); 3725 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512F, "AVX512F"); 3726 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512CD, "AVX512CD"); 3727 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512ER, "AVX512ER"); 3728 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512PF, "AVX512PF"); 3729 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512VL, "AVX512VL"); 3730 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512DQ, "AVX512DQ"); 3731 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512BW, "AVX512BW"); 3732 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS, "AVX512_4FMAPS"); 3733 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW, "AVX512_4VNNIW"); 3734 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_BITALG, "AVX512_BITALG"); 3735 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_IFMA, "AVX512_IFMA"); 3736 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI, "AVX512_VBMI"); 3737 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2, "AVX512_VBMI2"); 3738 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VNNI, "AVX512_VNNI"); 3739 if (PrData) 3740 OS << format("<unknown flags: 0x%x>", PrData); 3741 return OS.str(); 3742 break; 3743 case GNU_PROPERTY_X86_FEATURE_2_NEEDED: 3744 case GNU_PROPERTY_X86_FEATURE_2_USED: 3745 OS << "x86 feature " 3746 << (Type == GNU_PROPERTY_X86_FEATURE_2_NEEDED ? "needed: " : "used: "); 3747 if (DataSize != 4) { 3748 OS << format("<corrupt length: 0x%x>", DataSize); 3749 return OS.str(); 3750 } 3751 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data()); 3752 if (PrData == 0) { 3753 OS << "<None>"; 3754 return OS.str(); 3755 } 3756 DumpBit(GNU_PROPERTY_X86_FEATURE_2_X86, "x86"); 3757 DumpBit(GNU_PROPERTY_X86_FEATURE_2_X87, "x87"); 3758 DumpBit(GNU_PROPERTY_X86_FEATURE_2_MMX, "MMX"); 3759 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XMM, "XMM"); 3760 DumpBit(GNU_PROPERTY_X86_FEATURE_2_YMM, "YMM"); 3761 DumpBit(GNU_PROPERTY_X86_FEATURE_2_ZMM, "ZMM"); 3762 DumpBit(GNU_PROPERTY_X86_FEATURE_2_FXSR, "FXSR"); 3763 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVE, "XSAVE"); 3764 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT, "XSAVEOPT"); 3765 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVEC, "XSAVEC"); 3766 if (PrData) 3767 OS << format("<unknown flags: 0x%x>", PrData); 3768 return OS.str(); 3769 } 3770 } 3771 3772 template <typename ELFT> 3773 static SmallVector<std::string, 4> 3774 getGNUPropertyList(ArrayRef<uint8_t> Arr) { 3775 using Elf_Word = typename ELFT::Word; 3776 3777 SmallVector<std::string, 4> Properties; 3778 while (Arr.size() >= 8) { 3779 uint32_t Type = *reinterpret_cast<const Elf_Word *>(Arr.data()); 3780 uint32_t DataSize = *reinterpret_cast<const Elf_Word *>(Arr.data() + 4); 3781 Arr = Arr.drop_front(8); 3782 3783 // Take padding size into account if present. 3784 uint64_t PaddedSize = alignTo(DataSize, sizeof(typename ELFT::uint)); 3785 std::string str; 3786 raw_string_ostream OS(str); 3787 if (Arr.size() < PaddedSize) { 3788 OS << format("<corrupt type (0x%x) datasz: 0x%x>", Type, DataSize); 3789 Properties.push_back(OS.str()); 3790 break; 3791 } 3792 Properties.push_back( 3793 getGNUProperty<ELFT>(Type, DataSize, Arr.take_front(PaddedSize))); 3794 Arr = Arr.drop_front(PaddedSize); 3795 } 3796 3797 if (!Arr.empty()) 3798 Properties.push_back("<corrupted GNU_PROPERTY_TYPE_0>"); 3799 3800 return Properties; 3801 } 3802 3803 struct GNUAbiTag { 3804 std::string OSName; 3805 std::string ABI; 3806 bool IsValid; 3807 }; 3808 3809 template <typename ELFT> 3810 static GNUAbiTag getGNUAbiTag(ArrayRef<uint8_t> Desc) { 3811 typedef typename ELFT::Word Elf_Word; 3812 3813 ArrayRef<Elf_Word> Words(reinterpret_cast<const Elf_Word*>(Desc.begin()), 3814 reinterpret_cast<const Elf_Word*>(Desc.end())); 3815 3816 if (Words.size() < 4) 3817 return {"", "", /*IsValid=*/false}; 3818 3819 static const char *OSNames[] = { 3820 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl", 3821 }; 3822 StringRef OSName = "Unknown"; 3823 if (Words[0] < array_lengthof(OSNames)) 3824 OSName = OSNames[Words[0]]; 3825 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3]; 3826 std::string str; 3827 raw_string_ostream ABI(str); 3828 ABI << Major << "." << Minor << "." << Patch; 3829 return {OSName, ABI.str(), /*IsValid=*/true}; 3830 } 3831 3832 static std::string getGNUBuildId(ArrayRef<uint8_t> Desc) { 3833 std::string str; 3834 raw_string_ostream OS(str); 3835 for (const auto &B : Desc) 3836 OS << format_hex_no_prefix(B, 2); 3837 return OS.str(); 3838 } 3839 3840 static StringRef getGNUGoldVersion(ArrayRef<uint8_t> Desc) { 3841 return StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size()); 3842 } 3843 3844 template <typename ELFT> 3845 static void printGNUNote(raw_ostream &OS, uint32_t NoteType, 3846 ArrayRef<uint8_t> Desc) { 3847 switch (NoteType) { 3848 default: 3849 return; 3850 case ELF::NT_GNU_ABI_TAG: { 3851 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc); 3852 if (!AbiTag.IsValid) 3853 OS << " <corrupt GNU_ABI_TAG>"; 3854 else 3855 OS << " OS: " << AbiTag.OSName << ", ABI: " << AbiTag.ABI; 3856 break; 3857 } 3858 case ELF::NT_GNU_BUILD_ID: { 3859 OS << " Build ID: " << getGNUBuildId(Desc); 3860 break; 3861 } 3862 case ELF::NT_GNU_GOLD_VERSION: 3863 OS << " Version: " << getGNUGoldVersion(Desc); 3864 break; 3865 case ELF::NT_GNU_PROPERTY_TYPE_0: 3866 OS << " Properties:"; 3867 for (const auto &Property : getGNUPropertyList<ELFT>(Desc)) 3868 OS << " " << Property << "\n"; 3869 break; 3870 } 3871 OS << '\n'; 3872 } 3873 3874 struct AMDNote { 3875 std::string Type; 3876 std::string Value; 3877 }; 3878 3879 template <typename ELFT> 3880 static AMDNote getAMDNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) { 3881 switch (NoteType) { 3882 default: 3883 return {"", ""}; 3884 case ELF::NT_AMD_AMDGPU_HSA_METADATA: 3885 return {"HSA Metadata", 3886 std::string(reinterpret_cast<const char *>(Desc.data()), 3887 Desc.size())}; 3888 case ELF::NT_AMD_AMDGPU_ISA: 3889 return {"ISA Version", 3890 std::string(reinterpret_cast<const char *>(Desc.data()), 3891 Desc.size())}; 3892 } 3893 } 3894 3895 struct AMDGPUNote { 3896 std::string Type; 3897 std::string Value; 3898 }; 3899 3900 template <typename ELFT> 3901 static AMDGPUNote getAMDGPUNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) { 3902 switch (NoteType) { 3903 default: 3904 return {"", ""}; 3905 case ELF::NT_AMDGPU_METADATA: { 3906 auto MsgPackString = 3907 StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size()); 3908 msgpack::Document MsgPackDoc; 3909 if (!MsgPackDoc.readFromBlob(MsgPackString, /*Multi=*/false)) 3910 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; 3911 3912 AMDGPU::HSAMD::V3::MetadataVerifier Verifier(true); 3913 if (!Verifier.verify(MsgPackDoc.getRoot())) 3914 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; 3915 3916 std::string HSAMetadataString; 3917 raw_string_ostream StrOS(HSAMetadataString); 3918 MsgPackDoc.toYAML(StrOS); 3919 3920 return {"AMDGPU Metadata", StrOS.str()}; 3921 } 3922 } 3923 } 3924 3925 template <class ELFT> 3926 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3927 auto PrintHeader = [&](const typename ELFT::Off Offset, 3928 const typename ELFT::Addr Size) { 3929 OS << "Displaying notes found at file offset " << format_hex(Offset, 10) 3930 << " with length " << format_hex(Size, 10) << ":\n" 3931 << " Owner Data size\tDescription\n"; 3932 }; 3933 3934 auto ProcessNote = [&](const Elf_Note &Note) { 3935 StringRef Name = Note.getName(); 3936 ArrayRef<uint8_t> Descriptor = Note.getDesc(); 3937 Elf_Word Type = Note.getType(); 3938 3939 OS << " " << Name << std::string(22 - Name.size(), ' ') 3940 << format_hex(Descriptor.size(), 10) << '\t'; 3941 3942 if (Name == "GNU") { 3943 OS << getGNUNoteTypeName(Type) << '\n'; 3944 printGNUNote<ELFT>(OS, Type, Descriptor); 3945 } else if (Name == "FreeBSD") { 3946 OS << getFreeBSDNoteTypeName(Type) << '\n'; 3947 } else if (Name == "AMD") { 3948 OS << getAMDNoteTypeName(Type) << '\n'; 3949 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor); 3950 if (!N.Type.empty()) 3951 OS << " " << N.Type << ":\n " << N.Value << '\n'; 3952 } else if (Name == "AMDGPU") { 3953 OS << getAMDGPUNoteTypeName(Type) << '\n'; 3954 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor); 3955 if (!N.Type.empty()) 3956 OS << " " << N.Type << ":\n " << N.Value << '\n'; 3957 } else { 3958 StringRef NoteType = getGenericNoteTypeName(Type); 3959 if (!NoteType.empty()) 3960 OS << NoteType; 3961 else 3962 OS << "Unknown note type: (" << format_hex(Type, 10) << ')'; 3963 } 3964 OS << '\n'; 3965 }; 3966 3967 if (Obj->getHeader()->e_type == ELF::ET_CORE) { 3968 for (const auto &P : unwrapOrError(Obj->program_headers())) { 3969 if (P.p_type != PT_NOTE) 3970 continue; 3971 PrintHeader(P.p_offset, P.p_filesz); 3972 Error Err = Error::success(); 3973 for (const auto &Note : Obj->notes(P, Err)) 3974 ProcessNote(Note); 3975 if (Err) 3976 error(std::move(Err)); 3977 } 3978 } else { 3979 for (const auto &S : unwrapOrError(Obj->sections())) { 3980 if (S.sh_type != SHT_NOTE) 3981 continue; 3982 PrintHeader(S.sh_offset, S.sh_size); 3983 Error Err = Error::success(); 3984 for (const auto &Note : Obj->notes(S, Err)) 3985 ProcessNote(Note); 3986 if (Err) 3987 error(std::move(Err)); 3988 } 3989 } 3990 } 3991 3992 template <class ELFT> 3993 void GNUStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 3994 OS << "printELFLinkerOptions not implemented!\n"; 3995 } 3996 3997 template <class ELFT> 3998 void GNUStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 3999 size_t Bias = ELFT::Is64Bits ? 8 : 0; 4000 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 4001 OS.PadToColumn(2); 4002 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 4003 OS.PadToColumn(11 + Bias); 4004 OS << format_decimal(Parser.getGotOffset(E), 6) << "(gp)"; 4005 OS.PadToColumn(22 + Bias); 4006 OS << format_hex_no_prefix(*E, 8 + Bias); 4007 OS.PadToColumn(31 + 2 * Bias); 4008 OS << Purpose << "\n"; 4009 }; 4010 4011 OS << (Parser.IsStatic ? "Static GOT:\n" : "Primary GOT:\n"); 4012 OS << " Canonical gp value: " 4013 << format_hex_no_prefix(Parser.getGp(), 8 + Bias) << "\n\n"; 4014 4015 OS << " Reserved entries:\n"; 4016 OS << " Address Access Initial Purpose\n"; 4017 PrintEntry(Parser.getGotLazyResolver(), "Lazy resolver"); 4018 if (Parser.getGotModulePointer()) 4019 PrintEntry(Parser.getGotModulePointer(), "Module pointer (GNU extension)"); 4020 4021 if (!Parser.getLocalEntries().empty()) { 4022 OS << "\n"; 4023 OS << " Local entries:\n"; 4024 OS << " Address Access Initial\n"; 4025 for (auto &E : Parser.getLocalEntries()) 4026 PrintEntry(&E, ""); 4027 } 4028 4029 if (Parser.IsStatic) 4030 return; 4031 4032 if (!Parser.getGlobalEntries().empty()) { 4033 OS << "\n"; 4034 OS << " Global entries:\n"; 4035 OS << " Address Access Initial Sym.Val. Type Ndx Name\n"; 4036 for (auto &E : Parser.getGlobalEntries()) { 4037 const Elf_Sym *Sym = Parser.getGotSym(&E); 4038 std::string SymName = this->dumper()->getFullSymbolName( 4039 Sym, this->dumper()->getDynamicStringTable(), false); 4040 4041 OS.PadToColumn(2); 4042 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 4043 OS.PadToColumn(11 + Bias); 4044 OS << to_string(format_decimal(Parser.getGotOffset(&E), 6)) + "(gp)"; 4045 OS.PadToColumn(22 + Bias); 4046 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 4047 OS.PadToColumn(31 + 2 * Bias); 4048 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 4049 OS.PadToColumn(40 + 3 * Bias); 4050 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4051 OS.PadToColumn(48 + 3 * Bias); 4052 OS << getSymbolSectionNdx(Parser.Obj, Sym, 4053 this->dumper()->dynamic_symbols().begin()); 4054 OS.PadToColumn(52 + 3 * Bias); 4055 OS << SymName << "\n"; 4056 } 4057 } 4058 4059 if (!Parser.getOtherEntries().empty()) 4060 OS << "\n Number of TLS and multi-GOT entries " 4061 << Parser.getOtherEntries().size() << "\n"; 4062 } 4063 4064 template <class ELFT> 4065 void GNUStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 4066 size_t Bias = ELFT::Is64Bits ? 8 : 0; 4067 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 4068 OS.PadToColumn(2); 4069 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 4070 OS.PadToColumn(11 + Bias); 4071 OS << format_hex_no_prefix(*E, 8 + Bias); 4072 OS.PadToColumn(20 + 2 * Bias); 4073 OS << Purpose << "\n"; 4074 }; 4075 4076 OS << "PLT GOT:\n\n"; 4077 4078 OS << " Reserved entries:\n"; 4079 OS << " Address Initial Purpose\n"; 4080 PrintEntry(Parser.getPltLazyResolver(), "PLT lazy resolver"); 4081 if (Parser.getPltModulePointer()) 4082 PrintEntry(Parser.getGotModulePointer(), "Module pointer"); 4083 4084 if (!Parser.getPltEntries().empty()) { 4085 OS << "\n"; 4086 OS << " Entries:\n"; 4087 OS << " Address Initial Sym.Val. Type Ndx Name\n"; 4088 for (auto &E : Parser.getPltEntries()) { 4089 const Elf_Sym *Sym = Parser.getPltSym(&E); 4090 std::string SymName = this->dumper()->getFullSymbolName( 4091 Sym, this->dumper()->getDynamicStringTable(), false); 4092 4093 OS.PadToColumn(2); 4094 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 4095 OS.PadToColumn(11 + Bias); 4096 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 4097 OS.PadToColumn(20 + 2 * Bias); 4098 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 4099 OS.PadToColumn(29 + 3 * Bias); 4100 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4101 OS.PadToColumn(37 + 3 * Bias); 4102 OS << getSymbolSectionNdx(Parser.Obj, Sym, 4103 this->dumper()->dynamic_symbols().begin()); 4104 OS.PadToColumn(41 + 3 * Bias); 4105 OS << SymName << "\n"; 4106 } 4107 } 4108 } 4109 4110 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 4111 const Elf_Ehdr *E = Obj->getHeader(); 4112 { 4113 DictScope D(W, "ElfHeader"); 4114 { 4115 DictScope D(W, "Ident"); 4116 W.printBinary("Magic", makeArrayRef(E->e_ident).slice(ELF::EI_MAG0, 4)); 4117 W.printEnum("Class", E->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 4118 W.printEnum("DataEncoding", E->e_ident[ELF::EI_DATA], 4119 makeArrayRef(ElfDataEncoding)); 4120 W.printNumber("FileVersion", E->e_ident[ELF::EI_VERSION]); 4121 4122 auto OSABI = makeArrayRef(ElfOSABI); 4123 if (E->e_ident[ELF::EI_OSABI] >= ELF::ELFOSABI_FIRST_ARCH && 4124 E->e_ident[ELF::EI_OSABI] <= ELF::ELFOSABI_LAST_ARCH) { 4125 switch (E->e_machine) { 4126 case ELF::EM_AMDGPU: 4127 OSABI = makeArrayRef(AMDGPUElfOSABI); 4128 break; 4129 case ELF::EM_ARM: 4130 OSABI = makeArrayRef(ARMElfOSABI); 4131 break; 4132 case ELF::EM_TI_C6000: 4133 OSABI = makeArrayRef(C6000ElfOSABI); 4134 break; 4135 } 4136 } 4137 W.printEnum("OS/ABI", E->e_ident[ELF::EI_OSABI], OSABI); 4138 W.printNumber("ABIVersion", E->e_ident[ELF::EI_ABIVERSION]); 4139 W.printBinary("Unused", makeArrayRef(E->e_ident).slice(ELF::EI_PAD)); 4140 } 4141 4142 W.printEnum("Type", E->e_type, makeArrayRef(ElfObjectFileType)); 4143 W.printEnum("Machine", E->e_machine, makeArrayRef(ElfMachineType)); 4144 W.printNumber("Version", E->e_version); 4145 W.printHex("Entry", E->e_entry); 4146 W.printHex("ProgramHeaderOffset", E->e_phoff); 4147 W.printHex("SectionHeaderOffset", E->e_shoff); 4148 if (E->e_machine == EM_MIPS) 4149 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderMipsFlags), 4150 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 4151 unsigned(ELF::EF_MIPS_MACH)); 4152 else if (E->e_machine == EM_AMDGPU) 4153 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderAMDGPUFlags), 4154 unsigned(ELF::EF_AMDGPU_MACH)); 4155 else if (E->e_machine == EM_RISCV) 4156 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); 4157 else 4158 W.printFlags("Flags", E->e_flags); 4159 W.printNumber("HeaderSize", E->e_ehsize); 4160 W.printNumber("ProgramHeaderEntrySize", E->e_phentsize); 4161 W.printNumber("ProgramHeaderCount", E->e_phnum); 4162 W.printNumber("SectionHeaderEntrySize", E->e_shentsize); 4163 W.printString("SectionHeaderCount", getSectionHeadersNumString(Obj)); 4164 W.printString("StringTableSectionIndex", getSectionHeaderTableIndexString(Obj)); 4165 } 4166 } 4167 4168 template <class ELFT> 4169 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) { 4170 DictScope Lists(W, "Groups"); 4171 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 4172 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 4173 for (const GroupSection &G : V) { 4174 DictScope D(W, "Group"); 4175 W.printNumber("Name", G.Name, G.ShName); 4176 W.printNumber("Index", G.Index); 4177 W.printNumber("Link", G.Link); 4178 W.printNumber("Info", G.Info); 4179 W.printHex("Type", getGroupType(G.Type), G.Type); 4180 W.startLine() << "Signature: " << G.Signature << "\n"; 4181 4182 ListScope L(W, "Section(s) in group"); 4183 for (const GroupMember &GM : G.Members) { 4184 const GroupSection *MainGroup = Map[GM.Index]; 4185 if (MainGroup != &G) { 4186 W.flush(); 4187 errs() << "Error: " << GM.Name << " (" << GM.Index 4188 << ") in a group " + G.Name + " (" << G.Index 4189 << ") is already in a group " + MainGroup->Name + " (" 4190 << MainGroup->Index << ")\n"; 4191 errs().flush(); 4192 continue; 4193 } 4194 W.startLine() << GM.Name << " (" << GM.Index << ")\n"; 4195 } 4196 } 4197 4198 if (V.empty()) 4199 W.startLine() << "There are no group sections in the file.\n"; 4200 } 4201 4202 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) { 4203 ListScope D(W, "Relocations"); 4204 4205 int SectionNumber = -1; 4206 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4207 ++SectionNumber; 4208 4209 if (Sec.sh_type != ELF::SHT_REL && 4210 Sec.sh_type != ELF::SHT_RELA && 4211 Sec.sh_type != ELF::SHT_RELR && 4212 Sec.sh_type != ELF::SHT_ANDROID_REL && 4213 Sec.sh_type != ELF::SHT_ANDROID_RELA && 4214 Sec.sh_type != ELF::SHT_ANDROID_RELR) 4215 continue; 4216 4217 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4218 4219 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; 4220 W.indent(); 4221 4222 printRelocations(&Sec, Obj); 4223 4224 W.unindent(); 4225 W.startLine() << "}\n"; 4226 } 4227 } 4228 4229 template <class ELFT> 4230 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) { 4231 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 4232 4233 switch (Sec->sh_type) { 4234 case ELF::SHT_REL: 4235 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) { 4236 Elf_Rela Rela; 4237 Rela.r_offset = R.r_offset; 4238 Rela.r_info = R.r_info; 4239 Rela.r_addend = 0; 4240 printRelocation(Obj, Rela, SymTab); 4241 } 4242 break; 4243 case ELF::SHT_RELA: 4244 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec))) 4245 printRelocation(Obj, R, SymTab); 4246 break; 4247 case ELF::SHT_RELR: 4248 case ELF::SHT_ANDROID_RELR: { 4249 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(Sec)); 4250 if (opts::RawRelr) { 4251 for (const Elf_Relr &R : Relrs) 4252 W.startLine() << W.hex(R) << "\n"; 4253 } else { 4254 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4255 for (const Elf_Rela &R : RelrRelas) 4256 printRelocation(Obj, R, SymTab); 4257 } 4258 break; 4259 } 4260 case ELF::SHT_ANDROID_REL: 4261 case ELF::SHT_ANDROID_RELA: 4262 for (const Elf_Rela &R : unwrapOrError(Obj->android_relas(Sec))) 4263 printRelocation(Obj, R, SymTab); 4264 break; 4265 } 4266 } 4267 4268 template <class ELFT> 4269 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel, 4270 const Elf_Shdr *SymTab) { 4271 SmallString<32> RelocName; 4272 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4273 std::string TargetName; 4274 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab)); 4275 if (Sym && Sym->getType() == ELF::STT_SECTION) { 4276 const Elf_Shdr *Sec = unwrapOrError( 4277 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 4278 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 4279 } else if (Sym) { 4280 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 4281 TargetName = this->dumper()->getFullSymbolName( 4282 Sym, StrTable, SymTab->sh_type == SHT_DYNSYM /* IsDynamic */); 4283 } 4284 4285 if (opts::ExpandRelocs) { 4286 DictScope Group(W, "Relocation"); 4287 W.printHex("Offset", Rel.r_offset); 4288 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4289 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-", 4290 Rel.getSymbol(Obj->isMips64EL())); 4291 W.printHex("Addend", Rel.r_addend); 4292 } else { 4293 raw_ostream &OS = W.startLine(); 4294 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4295 << (!TargetName.empty() ? TargetName : "-") << " " 4296 << W.hex(Rel.r_addend) << "\n"; 4297 } 4298 } 4299 4300 template <class ELFT> 4301 void LLVMStyle<ELFT>::printSectionHeaders(const ELFO *Obj) { 4302 ListScope SectionsD(W, "Sections"); 4303 4304 int SectionIndex = -1; 4305 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4306 ++SectionIndex; 4307 4308 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4309 4310 DictScope SectionD(W, "Section"); 4311 W.printNumber("Index", SectionIndex); 4312 W.printNumber("Name", Name, Sec.sh_name); 4313 W.printHex( 4314 "Type", 4315 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type), 4316 Sec.sh_type); 4317 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags), 4318 std::end(ElfSectionFlags)); 4319 switch (Obj->getHeader()->e_machine) { 4320 case EM_ARM: 4321 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags), 4322 std::end(ElfARMSectionFlags)); 4323 break; 4324 case EM_HEXAGON: 4325 SectionFlags.insert(SectionFlags.end(), 4326 std::begin(ElfHexagonSectionFlags), 4327 std::end(ElfHexagonSectionFlags)); 4328 break; 4329 case EM_MIPS: 4330 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags), 4331 std::end(ElfMipsSectionFlags)); 4332 break; 4333 case EM_X86_64: 4334 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags), 4335 std::end(ElfX86_64SectionFlags)); 4336 break; 4337 case EM_XCORE: 4338 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags), 4339 std::end(ElfXCoreSectionFlags)); 4340 break; 4341 default: 4342 // Nothing to do. 4343 break; 4344 } 4345 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags)); 4346 W.printHex("Address", Sec.sh_addr); 4347 W.printHex("Offset", Sec.sh_offset); 4348 W.printNumber("Size", Sec.sh_size); 4349 W.printNumber("Link", Sec.sh_link); 4350 W.printNumber("Info", Sec.sh_info); 4351 W.printNumber("AddressAlignment", Sec.sh_addralign); 4352 W.printNumber("EntrySize", Sec.sh_entsize); 4353 4354 if (opts::SectionRelocations) { 4355 ListScope D(W, "Relocations"); 4356 printRelocations(&Sec, Obj); 4357 } 4358 4359 if (opts::SectionSymbols) { 4360 ListScope D(W, "Symbols"); 4361 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec(); 4362 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 4363 4364 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) { 4365 const Elf_Shdr *SymSec = unwrapOrError( 4366 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable())); 4367 if (SymSec == &Sec) 4368 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(), 4369 StrTable, false); 4370 } 4371 } 4372 4373 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) { 4374 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec)); 4375 W.printBinaryBlock( 4376 "SectionData", 4377 StringRef(reinterpret_cast<const char *>(Data.data()), Data.size())); 4378 } 4379 } 4380 } 4381 4382 template <class ELFT> 4383 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 4384 const Elf_Sym *First, StringRef StrTable, 4385 bool IsDynamic) { 4386 unsigned SectionIndex = 0; 4387 StringRef SectionName; 4388 this->dumper()->getSectionNameIndex(Symbol, First, SectionName, SectionIndex); 4389 std::string FullSymbolName = 4390 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 4391 unsigned char SymbolType = Symbol->getType(); 4392 4393 DictScope D(W, "Symbol"); 4394 W.printNumber("Name", FullSymbolName, Symbol->st_name); 4395 W.printHex("Value", Symbol->st_value); 4396 W.printNumber("Size", Symbol->st_size); 4397 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 4398 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 4399 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 4400 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 4401 else 4402 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes)); 4403 if (Symbol->st_other == 0) 4404 // Usually st_other flag is zero. Do not pollute the output 4405 // by flags enumeration in that case. 4406 W.printNumber("Other", 0); 4407 else { 4408 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags), 4409 std::end(ElfSymOtherFlags)); 4410 if (Obj->getHeader()->e_machine == EM_MIPS) { 4411 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16 4412 // flag overlapped with other ST_MIPS_xxx flags. So consider both 4413 // cases separately. 4414 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16) 4415 SymOtherFlags.insert(SymOtherFlags.end(), 4416 std::begin(ElfMips16SymOtherFlags), 4417 std::end(ElfMips16SymOtherFlags)); 4418 else 4419 SymOtherFlags.insert(SymOtherFlags.end(), 4420 std::begin(ElfMipsSymOtherFlags), 4421 std::end(ElfMipsSymOtherFlags)); 4422 } 4423 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u); 4424 } 4425 W.printHex("Section", SectionName, SectionIndex); 4426 } 4427 4428 template <class ELFT> 4429 void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj, bool PrintSymbols, 4430 bool PrintDynamicSymbols) { 4431 if (PrintSymbols) 4432 printSymbols(Obj); 4433 if (PrintDynamicSymbols) 4434 printDynamicSymbols(Obj); 4435 } 4436 4437 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) { 4438 ListScope Group(W, "Symbols"); 4439 this->dumper()->printSymbolsHelper(false); 4440 } 4441 4442 template <class ELFT> 4443 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 4444 ListScope Group(W, "DynamicSymbols"); 4445 this->dumper()->printSymbolsHelper(true); 4446 } 4447 4448 template <class ELFT> 4449 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 4450 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 4451 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 4452 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 4453 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 4454 if (DynRelRegion.Size && DynRelaRegion.Size) 4455 report_fatal_error("There are both REL and RELA dynamic relocations"); 4456 W.startLine() << "Dynamic Relocations {\n"; 4457 W.indent(); 4458 if (DynRelaRegion.Size > 0) 4459 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 4460 printDynamicRelocation(Obj, Rela); 4461 else 4462 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 4463 Elf_Rela Rela; 4464 Rela.r_offset = Rel.r_offset; 4465 Rela.r_info = Rel.r_info; 4466 Rela.r_addend = 0; 4467 printDynamicRelocation(Obj, Rela); 4468 } 4469 if (DynRelrRegion.Size > 0) { 4470 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 4471 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4472 for (const Elf_Rela &Rela : RelrRelas) 4473 printDynamicRelocation(Obj, Rela); 4474 } 4475 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) 4476 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 4477 printDynamicRelocation(Obj, Rela); 4478 else 4479 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 4480 Elf_Rela Rela; 4481 Rela.r_offset = Rel.r_offset; 4482 Rela.r_info = Rel.r_info; 4483 Rela.r_addend = 0; 4484 printDynamicRelocation(Obj, Rela); 4485 } 4486 W.unindent(); 4487 W.startLine() << "}\n"; 4488 } 4489 4490 template <class ELFT> 4491 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) { 4492 SmallString<32> RelocName; 4493 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4494 std::string SymbolName; 4495 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL()); 4496 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 4497 SymbolName = maybeDemangle( 4498 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()))); 4499 if (opts::ExpandRelocs) { 4500 DictScope Group(W, "Relocation"); 4501 W.printHex("Offset", Rel.r_offset); 4502 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4503 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-"); 4504 W.printHex("Addend", Rel.r_addend); 4505 } else { 4506 raw_ostream &OS = W.startLine(); 4507 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4508 << (!SymbolName.empty() ? SymbolName : "-") << " " 4509 << W.hex(Rel.r_addend) << "\n"; 4510 } 4511 } 4512 4513 template <class ELFT> 4514 void LLVMStyle<ELFT>::printProgramHeaders( 4515 const ELFO *Obj, bool PrintProgramHeaders, 4516 cl::boolOrDefault PrintSectionMapping) { 4517 if (PrintProgramHeaders) 4518 printProgramHeaders(Obj); 4519 if (PrintSectionMapping == cl::BOU_TRUE) 4520 printSectionMapping(Obj); 4521 } 4522 4523 template <class ELFT> 4524 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 4525 ListScope L(W, "ProgramHeaders"); 4526 4527 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 4528 DictScope P(W, "ProgramHeader"); 4529 W.printHex("Type", 4530 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type), 4531 Phdr.p_type); 4532 W.printHex("Offset", Phdr.p_offset); 4533 W.printHex("VirtualAddress", Phdr.p_vaddr); 4534 W.printHex("PhysicalAddress", Phdr.p_paddr); 4535 W.printNumber("FileSize", Phdr.p_filesz); 4536 W.printNumber("MemSize", Phdr.p_memsz); 4537 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags)); 4538 W.printNumber("Alignment", Phdr.p_align); 4539 } 4540 } 4541 4542 template <class ELFT> 4543 void LLVMStyle<ELFT>::printVersionSymbolSection(const ELFFile<ELFT> *Obj, 4544 const Elf_Shdr *Sec) { 4545 DictScope SS(W, "Version symbols"); 4546 if (!Sec) 4547 return; 4548 4549 StringRef SecName = unwrapOrError(Obj->getSectionName(Sec)); 4550 W.printNumber("Section Name", SecName, Sec->sh_name); 4551 W.printHex("Address", Sec->sh_addr); 4552 W.printHex("Offset", Sec->sh_offset); 4553 W.printNumber("Link", Sec->sh_link); 4554 4555 const uint8_t *VersymBuf = 4556 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset); 4557 const ELFDumper<ELFT> *Dumper = this->dumper(); 4558 StringRef StrTable = Dumper->getDynamicStringTable(); 4559 4560 // Same number of entries in the dynamic symbol table (DT_SYMTAB). 4561 ListScope Syms(W, "Symbols"); 4562 for (const Elf_Sym &Sym : Dumper->dynamic_symbols()) { 4563 DictScope S(W, "Symbol"); 4564 const Elf_Versym *Versym = reinterpret_cast<const Elf_Versym *>(VersymBuf); 4565 std::string FullSymbolName = 4566 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */); 4567 W.printNumber("Version", Versym->vs_index & VERSYM_VERSION); 4568 W.printString("Name", FullSymbolName); 4569 VersymBuf += sizeof(Elf_Versym); 4570 } 4571 } 4572 4573 template <class ELFT> 4574 void LLVMStyle<ELFT>::printVersionDefinitionSection(const ELFFile<ELFT> *Obj, 4575 const Elf_Shdr *Sec) { 4576 DictScope SD(W, "SHT_GNU_verdef"); 4577 if (!Sec) 4578 return; 4579 4580 const uint8_t *SecStartAddress = 4581 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset); 4582 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size; 4583 const uint8_t *VerdefBuf = SecStartAddress; 4584 const Elf_Shdr *StrTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 4585 4586 unsigned VerDefsNum = Sec->sh_info; 4587 while (VerDefsNum--) { 4588 if (VerdefBuf + sizeof(Elf_Verdef) > SecEndAddress) 4589 // FIXME: report_fatal_error is not a good way to report error. We should 4590 // emit a parsing error here and below. 4591 report_fatal_error("invalid offset in the section"); 4592 4593 const Elf_Verdef *Verdef = reinterpret_cast<const Elf_Verdef *>(VerdefBuf); 4594 DictScope Def(W, "Definition"); 4595 W.printNumber("Version", Verdef->vd_version); 4596 W.printEnum("Flags", Verdef->vd_flags, makeArrayRef(SymVersionFlags)); 4597 W.printNumber("Index", Verdef->vd_ndx); 4598 W.printNumber("Hash", Verdef->vd_hash); 4599 W.printString("Name", StringRef(reinterpret_cast<const char *>( 4600 Obj->base() + StrTab->sh_offset + 4601 Verdef->getAux()->vda_name))); 4602 if (!Verdef->vd_cnt) 4603 report_fatal_error("at least one definition string must exist"); 4604 if (Verdef->vd_cnt > 2) 4605 report_fatal_error("more than one predecessor is not expected"); 4606 4607 if (Verdef->vd_cnt == 2) { 4608 const uint8_t *VerdauxBuf = 4609 VerdefBuf + Verdef->vd_aux + Verdef->getAux()->vda_next; 4610 const Elf_Verdaux *Verdaux = 4611 reinterpret_cast<const Elf_Verdaux *>(VerdauxBuf); 4612 W.printString("Predecessor", 4613 StringRef(reinterpret_cast<const char *>( 4614 Obj->base() + StrTab->sh_offset + Verdaux->vda_name))); 4615 } 4616 VerdefBuf += Verdef->vd_next; 4617 } 4618 } 4619 4620 template <class ELFT> 4621 void LLVMStyle<ELFT>::printVersionDependencySection(const ELFFile<ELFT> *Obj, 4622 const Elf_Shdr *Sec) { 4623 DictScope SD(W, "SHT_GNU_verneed"); 4624 if (!Sec) 4625 return; 4626 4627 const uint8_t *SecData = 4628 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset); 4629 const Elf_Shdr *StrTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 4630 4631 const uint8_t *VerneedBuf = SecData; 4632 unsigned VerneedNum = Sec->sh_info; 4633 for (unsigned I = 0; I < VerneedNum; ++I) { 4634 const Elf_Verneed *Verneed = 4635 reinterpret_cast<const Elf_Verneed *>(VerneedBuf); 4636 DictScope Entry(W, "Dependency"); 4637 W.printNumber("Version", Verneed->vn_version); 4638 W.printNumber("Count", Verneed->vn_cnt); 4639 W.printString("FileName", 4640 StringRef(reinterpret_cast<const char *>( 4641 Obj->base() + StrTab->sh_offset + Verneed->vn_file))); 4642 4643 const uint8_t *VernauxBuf = VerneedBuf + Verneed->vn_aux; 4644 ListScope L(W, "Entries"); 4645 for (unsigned J = 0; J < Verneed->vn_cnt; ++J) { 4646 const Elf_Vernaux *Vernaux = 4647 reinterpret_cast<const Elf_Vernaux *>(VernauxBuf); 4648 DictScope Entry(W, "Entry"); 4649 W.printNumber("Hash", Vernaux->vna_hash); 4650 W.printEnum("Flags", Vernaux->vna_flags, makeArrayRef(SymVersionFlags)); 4651 W.printNumber("Index", Vernaux->vna_other); 4652 W.printString("Name", 4653 StringRef(reinterpret_cast<const char *>( 4654 Obj->base() + StrTab->sh_offset + Vernaux->vna_name))); 4655 VernauxBuf += Vernaux->vna_next; 4656 } 4657 VerneedBuf += Verneed->vn_next; 4658 } 4659 } 4660 4661 template <class ELFT> 4662 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 4663 W.startLine() << "Hash Histogram not implemented!\n"; 4664 } 4665 4666 template <class ELFT> 4667 void LLVMStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 4668 ListScope L(W, "CGProfile"); 4669 if (!this->dumper()->getDotCGProfileSec()) 4670 return; 4671 auto CGProfile = 4672 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_CGProfile>( 4673 this->dumper()->getDotCGProfileSec())); 4674 for (const Elf_CGProfile &CGPE : CGProfile) { 4675 DictScope D(W, "CGProfileEntry"); 4676 W.printNumber("From", this->dumper()->getStaticSymbolName(CGPE.cgp_from), 4677 CGPE.cgp_from); 4678 W.printNumber("To", this->dumper()->getStaticSymbolName(CGPE.cgp_to), 4679 CGPE.cgp_to); 4680 W.printNumber("Weight", CGPE.cgp_weight); 4681 } 4682 } 4683 4684 template <class ELFT> 4685 void LLVMStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 4686 ListScope L(W, "Addrsig"); 4687 if (!this->dumper()->getDotAddrsigSec()) 4688 return; 4689 ArrayRef<uint8_t> Contents = unwrapOrError( 4690 Obj->getSectionContents(this->dumper()->getDotAddrsigSec())); 4691 const uint8_t *Cur = Contents.begin(); 4692 const uint8_t *End = Contents.end(); 4693 while (Cur != End) { 4694 unsigned Size; 4695 const char *Err; 4696 uint64_t SymIndex = decodeULEB128(Cur, &Size, End, &Err); 4697 if (Err) 4698 reportError(Err); 4699 W.printNumber("Sym", this->dumper()->getStaticSymbolName(SymIndex), 4700 SymIndex); 4701 Cur += Size; 4702 } 4703 } 4704 4705 template <typename ELFT> 4706 static void printGNUNoteLLVMStyle(uint32_t NoteType, 4707 ArrayRef<uint8_t> Desc, 4708 ScopedPrinter &W) { 4709 switch (NoteType) { 4710 default: 4711 return; 4712 case ELF::NT_GNU_ABI_TAG: { 4713 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc); 4714 if (!AbiTag.IsValid) { 4715 W.printString("ABI", "<corrupt GNU_ABI_TAG>"); 4716 } else { 4717 W.printString("OS", AbiTag.OSName); 4718 W.printString("ABI", AbiTag.ABI); 4719 } 4720 break; 4721 } 4722 case ELF::NT_GNU_BUILD_ID: { 4723 W.printString("Build ID", getGNUBuildId(Desc)); 4724 break; 4725 } 4726 case ELF::NT_GNU_GOLD_VERSION: 4727 W.printString("Version", getGNUGoldVersion(Desc)); 4728 break; 4729 case ELF::NT_GNU_PROPERTY_TYPE_0: 4730 ListScope D(W, "Property"); 4731 for (const auto &Property : getGNUPropertyList<ELFT>(Desc)) 4732 W.printString(Property); 4733 break; 4734 } 4735 } 4736 4737 template <class ELFT> 4738 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 4739 ListScope L(W, "Notes"); 4740 4741 auto PrintHeader = [&](const typename ELFT::Off Offset, 4742 const typename ELFT::Addr Size) { 4743 W.printHex("Offset", Offset); 4744 W.printHex("Size", Size); 4745 }; 4746 4747 auto ProcessNote = [&](const Elf_Note &Note) { 4748 DictScope D2(W, "Note"); 4749 StringRef Name = Note.getName(); 4750 ArrayRef<uint8_t> Descriptor = Note.getDesc(); 4751 Elf_Word Type = Note.getType(); 4752 4753 W.printString("Owner", Name); 4754 W.printHex("Data size", Descriptor.size()); 4755 if (Name == "GNU") { 4756 W.printString("Type", getGNUNoteTypeName(Type)); 4757 printGNUNoteLLVMStyle<ELFT>(Type, Descriptor, W); 4758 } else if (Name == "FreeBSD") { 4759 W.printString("Type", getFreeBSDNoteTypeName(Type)); 4760 } else if (Name == "AMD") { 4761 W.printString("Type", getAMDNoteTypeName(Type)); 4762 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor); 4763 if (!N.Type.empty()) 4764 W.printString(N.Type, N.Value); 4765 } else if (Name == "AMDGPU") { 4766 W.printString("Type", getAMDGPUNoteTypeName(Type)); 4767 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor); 4768 if (!N.Type.empty()) 4769 W.printString(N.Type, N.Value); 4770 } else { 4771 StringRef NoteType = getGenericNoteTypeName(Type); 4772 if (!NoteType.empty()) 4773 W.printString("Type", NoteType); 4774 else 4775 W.printString("Type", 4776 "Unknown (" + to_string(format_hex(Type, 10)) + ")"); 4777 } 4778 }; 4779 4780 if (Obj->getHeader()->e_type == ELF::ET_CORE) { 4781 for (const auto &P : unwrapOrError(Obj->program_headers())) { 4782 if (P.p_type != PT_NOTE) 4783 continue; 4784 DictScope D(W, "NoteSection"); 4785 PrintHeader(P.p_offset, P.p_filesz); 4786 Error Err = Error::success(); 4787 for (const auto &Note : Obj->notes(P, Err)) 4788 ProcessNote(Note); 4789 if (Err) 4790 error(std::move(Err)); 4791 } 4792 } else { 4793 for (const auto &S : unwrapOrError(Obj->sections())) { 4794 if (S.sh_type != SHT_NOTE) 4795 continue; 4796 DictScope D(W, "NoteSection"); 4797 PrintHeader(S.sh_offset, S.sh_size); 4798 Error Err = Error::success(); 4799 for (const auto &Note : Obj->notes(S, Err)) 4800 ProcessNote(Note); 4801 if (Err) 4802 error(std::move(Err)); 4803 } 4804 } 4805 } 4806 4807 template <class ELFT> 4808 void LLVMStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 4809 ListScope L(W, "LinkerOptions"); 4810 4811 for (const Elf_Shdr &Shdr : unwrapOrError(Obj->sections())) { 4812 if (Shdr.sh_type != ELF::SHT_LLVM_LINKER_OPTIONS) 4813 continue; 4814 4815 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Shdr)); 4816 for (const uint8_t *P = Contents.begin(), *E = Contents.end(); P < E; ) { 4817 StringRef Key = StringRef(reinterpret_cast<const char *>(P)); 4818 StringRef Value = 4819 StringRef(reinterpret_cast<const char *>(P) + Key.size() + 1); 4820 4821 W.printString(Key, Value); 4822 4823 P = P + Key.size() + Value.size() + 2; 4824 } 4825 } 4826 } 4827 4828 template <class ELFT> 4829 void LLVMStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 4830 auto PrintEntry = [&](const Elf_Addr *E) { 4831 W.printHex("Address", Parser.getGotAddress(E)); 4832 W.printNumber("Access", Parser.getGotOffset(E)); 4833 W.printHex("Initial", *E); 4834 }; 4835 4836 DictScope GS(W, Parser.IsStatic ? "Static GOT" : "Primary GOT"); 4837 4838 W.printHex("Canonical gp value", Parser.getGp()); 4839 { 4840 ListScope RS(W, "Reserved entries"); 4841 { 4842 DictScope D(W, "Entry"); 4843 PrintEntry(Parser.getGotLazyResolver()); 4844 W.printString("Purpose", StringRef("Lazy resolver")); 4845 } 4846 4847 if (Parser.getGotModulePointer()) { 4848 DictScope D(W, "Entry"); 4849 PrintEntry(Parser.getGotModulePointer()); 4850 W.printString("Purpose", StringRef("Module pointer (GNU extension)")); 4851 } 4852 } 4853 { 4854 ListScope LS(W, "Local entries"); 4855 for (auto &E : Parser.getLocalEntries()) { 4856 DictScope D(W, "Entry"); 4857 PrintEntry(&E); 4858 } 4859 } 4860 4861 if (Parser.IsStatic) 4862 return; 4863 4864 { 4865 ListScope GS(W, "Global entries"); 4866 for (auto &E : Parser.getGlobalEntries()) { 4867 DictScope D(W, "Entry"); 4868 4869 PrintEntry(&E); 4870 4871 const Elf_Sym *Sym = Parser.getGotSym(&E); 4872 W.printHex("Value", Sym->st_value); 4873 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4874 4875 unsigned SectionIndex = 0; 4876 StringRef SectionName; 4877 this->dumper()->getSectionNameIndex( 4878 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4879 SectionIndex); 4880 W.printHex("Section", SectionName, SectionIndex); 4881 4882 std::string SymName = this->dumper()->getFullSymbolName( 4883 Sym, this->dumper()->getDynamicStringTable(), true); 4884 W.printNumber("Name", SymName, Sym->st_name); 4885 } 4886 } 4887 4888 W.printNumber("Number of TLS and multi-GOT entries", 4889 uint64_t(Parser.getOtherEntries().size())); 4890 } 4891 4892 template <class ELFT> 4893 void LLVMStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 4894 auto PrintEntry = [&](const Elf_Addr *E) { 4895 W.printHex("Address", Parser.getPltAddress(E)); 4896 W.printHex("Initial", *E); 4897 }; 4898 4899 DictScope GS(W, "PLT GOT"); 4900 4901 { 4902 ListScope RS(W, "Reserved entries"); 4903 { 4904 DictScope D(W, "Entry"); 4905 PrintEntry(Parser.getPltLazyResolver()); 4906 W.printString("Purpose", StringRef("PLT lazy resolver")); 4907 } 4908 4909 if (auto E = Parser.getPltModulePointer()) { 4910 DictScope D(W, "Entry"); 4911 PrintEntry(E); 4912 W.printString("Purpose", StringRef("Module pointer")); 4913 } 4914 } 4915 { 4916 ListScope LS(W, "Entries"); 4917 for (auto &E : Parser.getPltEntries()) { 4918 DictScope D(W, "Entry"); 4919 PrintEntry(&E); 4920 4921 const Elf_Sym *Sym = Parser.getPltSym(&E); 4922 W.printHex("Value", Sym->st_value); 4923 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4924 4925 unsigned SectionIndex = 0; 4926 StringRef SectionName; 4927 this->dumper()->getSectionNameIndex( 4928 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4929 SectionIndex); 4930 W.printHex("Section", SectionName, SectionIndex); 4931 4932 std::string SymName = 4933 this->dumper()->getFullSymbolName(Sym, Parser.getPltStrTable(), true); 4934 W.printNumber("Name", SymName, Sym->st_name); 4935 } 4936 } 4937 } 4938