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_XNACK), 1279 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_SRAM_ECC) 1280 }; 1281 1282 static const EnumEntry<unsigned> ElfHeaderRISCVFlags[] = { 1283 ENUM_ENT(EF_RISCV_RVC, "RVC"), 1284 ENUM_ENT(EF_RISCV_FLOAT_ABI_SINGLE, "single-float ABI"), 1285 ENUM_ENT(EF_RISCV_FLOAT_ABI_DOUBLE, "double-float ABI"), 1286 ENUM_ENT(EF_RISCV_FLOAT_ABI_QUAD, "quad-float ABI"), 1287 ENUM_ENT(EF_RISCV_RVE, "RVE") 1288 }; 1289 1290 static const EnumEntry<unsigned> ElfSymOtherFlags[] = { 1291 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL), 1292 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN), 1293 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED) 1294 }; 1295 1296 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = { 1297 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1298 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1299 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC), 1300 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS) 1301 }; 1302 1303 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = { 1304 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1305 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1306 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16) 1307 }; 1308 1309 static const char *getElfMipsOptionsOdkType(unsigned Odk) { 1310 switch (Odk) { 1311 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL); 1312 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO); 1313 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS); 1314 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD); 1315 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH); 1316 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL); 1317 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS); 1318 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND); 1319 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR); 1320 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP); 1321 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT); 1322 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE); 1323 default: 1324 return "Unknown"; 1325 } 1326 } 1327 1328 template <typename ELFT> 1329 ELFDumper<ELFT>::ELFDumper(const object::ELFObjectFile<ELFT> *ObjF, 1330 ScopedPrinter &Writer) 1331 : ObjDumper(Writer), ObjF(ObjF) { 1332 SmallVector<const Elf_Phdr *, 4> LoadSegments; 1333 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 1334 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 1335 if (Phdr.p_type == ELF::PT_DYNAMIC) { 1336 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn)); 1337 continue; 1338 } 1339 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0) 1340 continue; 1341 LoadSegments.push_back(&Phdr); 1342 } 1343 1344 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1345 switch (Sec.sh_type) { 1346 case ELF::SHT_SYMTAB: 1347 if (DotSymtabSec != nullptr) 1348 reportError("Multiple SHT_SYMTAB"); 1349 DotSymtabSec = &Sec; 1350 break; 1351 case ELF::SHT_DYNSYM: 1352 if (DynSymRegion.Size) 1353 reportError("Multiple SHT_DYNSYM"); 1354 DynSymRegion = createDRIFrom(&Sec); 1355 // This is only used (if Elf_Shdr present)for naming section in GNU style 1356 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec)); 1357 DynamicStringTable = unwrapOrError(Obj->getStringTableForSymtab(Sec)); 1358 break; 1359 case ELF::SHT_SYMTAB_SHNDX: 1360 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec)); 1361 break; 1362 case ELF::SHT_GNU_versym: 1363 if (SymbolVersionSection != nullptr) 1364 reportError("Multiple SHT_GNU_versym"); 1365 SymbolVersionSection = &Sec; 1366 break; 1367 case ELF::SHT_GNU_verdef: 1368 if (SymbolVersionDefSection != nullptr) 1369 reportError("Multiple SHT_GNU_verdef"); 1370 SymbolVersionDefSection = &Sec; 1371 break; 1372 case ELF::SHT_GNU_verneed: 1373 if (SymbolVersionNeedSection != nullptr) 1374 reportError("Multiple SHT_GNU_verneed"); 1375 SymbolVersionNeedSection = &Sec; 1376 break; 1377 case ELF::SHT_LLVM_CALL_GRAPH_PROFILE: 1378 if (DotCGProfileSec != nullptr) 1379 reportError("Multiple .llvm.call-graph-profile"); 1380 DotCGProfileSec = &Sec; 1381 break; 1382 case ELF::SHT_LLVM_ADDRSIG: 1383 if (DotAddrsigSec != nullptr) 1384 reportError("Multiple .llvm_addrsig"); 1385 DotAddrsigSec = &Sec; 1386 break; 1387 } 1388 } 1389 1390 parseDynamicTable(LoadSegments); 1391 1392 if (opts::Output == opts::GNU) 1393 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this)); 1394 else 1395 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this)); 1396 } 1397 1398 template <typename ELFT> 1399 void ELFDumper<ELFT>::parseDynamicTable( 1400 ArrayRef<const Elf_Phdr *> LoadSegments) { 1401 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * { 1402 auto MappedAddrOrError = ObjF->getELFFile()->toMappedAddr(VAddr); 1403 if (!MappedAddrOrError) 1404 report_fatal_error(MappedAddrOrError.takeError()); 1405 return MappedAddrOrError.get(); 1406 }; 1407 1408 uint64_t SONameOffset = 0; 1409 const char *StringTableBegin = nullptr; 1410 uint64_t StringTableSize = 0; 1411 for (const Elf_Dyn &Dyn : dynamic_table()) { 1412 switch (Dyn.d_tag) { 1413 case ELF::DT_HASH: 1414 HashTable = 1415 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr())); 1416 break; 1417 case ELF::DT_GNU_HASH: 1418 GnuHashTable = 1419 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr())); 1420 break; 1421 case ELF::DT_STRTAB: 1422 StringTableBegin = 1423 reinterpret_cast<const char *>(toMappedAddr(Dyn.getPtr())); 1424 break; 1425 case ELF::DT_STRSZ: 1426 StringTableSize = Dyn.getVal(); 1427 break; 1428 case ELF::DT_SYMTAB: 1429 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr()); 1430 DynSymRegion.EntSize = sizeof(Elf_Sym); 1431 break; 1432 case ELF::DT_RELA: 1433 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr()); 1434 break; 1435 case ELF::DT_RELASZ: 1436 DynRelaRegion.Size = Dyn.getVal(); 1437 break; 1438 case ELF::DT_RELAENT: 1439 DynRelaRegion.EntSize = Dyn.getVal(); 1440 break; 1441 case ELF::DT_SONAME: 1442 SONameOffset = Dyn.getVal(); 1443 break; 1444 case ELF::DT_REL: 1445 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1446 break; 1447 case ELF::DT_RELSZ: 1448 DynRelRegion.Size = Dyn.getVal(); 1449 break; 1450 case ELF::DT_RELENT: 1451 DynRelRegion.EntSize = Dyn.getVal(); 1452 break; 1453 case ELF::DT_RELR: 1454 case ELF::DT_ANDROID_RELR: 1455 DynRelrRegion.Addr = toMappedAddr(Dyn.getPtr()); 1456 break; 1457 case ELF::DT_RELRSZ: 1458 case ELF::DT_ANDROID_RELRSZ: 1459 DynRelrRegion.Size = Dyn.getVal(); 1460 break; 1461 case ELF::DT_RELRENT: 1462 case ELF::DT_ANDROID_RELRENT: 1463 DynRelrRegion.EntSize = Dyn.getVal(); 1464 break; 1465 case ELF::DT_PLTREL: 1466 if (Dyn.getVal() == DT_REL) 1467 DynPLTRelRegion.EntSize = sizeof(Elf_Rel); 1468 else if (Dyn.getVal() == DT_RELA) 1469 DynPLTRelRegion.EntSize = sizeof(Elf_Rela); 1470 else 1471 reportError(Twine("unknown DT_PLTREL value of ") + 1472 Twine((uint64_t)Dyn.getVal())); 1473 break; 1474 case ELF::DT_JMPREL: 1475 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1476 break; 1477 case ELF::DT_PLTRELSZ: 1478 DynPLTRelRegion.Size = Dyn.getVal(); 1479 break; 1480 } 1481 } 1482 if (StringTableBegin) 1483 DynamicStringTable = StringRef(StringTableBegin, StringTableSize); 1484 if (SONameOffset) 1485 SOName = getDynamicString(SONameOffset); 1486 } 1487 1488 template <typename ELFT> 1489 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const { 1490 return DynRelRegion.getAsArrayRef<Elf_Rel>(); 1491 } 1492 1493 template <typename ELFT> 1494 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const { 1495 return DynRelaRegion.getAsArrayRef<Elf_Rela>(); 1496 } 1497 1498 template <typename ELFT> 1499 typename ELFDumper<ELFT>::Elf_Relr_Range ELFDumper<ELFT>::dyn_relrs() const { 1500 return DynRelrRegion.getAsArrayRef<Elf_Relr>(); 1501 } 1502 1503 template <class ELFT> 1504 void ELFDumper<ELFT>::printFileHeaders() { 1505 ELFDumperStyle->printFileHeaders(ObjF->getELFFile()); 1506 } 1507 1508 template <class ELFT> 1509 void ELFDumper<ELFT>::printSectionHeaders() { 1510 ELFDumperStyle->printSectionHeaders(ObjF->getELFFile()); 1511 } 1512 1513 template <class ELFT> 1514 void ELFDumper<ELFT>::printRelocations() { 1515 ELFDumperStyle->printRelocations(ObjF->getELFFile()); 1516 } 1517 1518 template <class ELFT> 1519 void ELFDumper<ELFT>::printProgramHeaders( 1520 bool PrintProgramHeaders, cl::boolOrDefault PrintSectionMapping) { 1521 ELFDumperStyle->printProgramHeaders(ObjF->getELFFile(), PrintProgramHeaders, 1522 PrintSectionMapping); 1523 } 1524 1525 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() { 1526 // Dump version symbol section. 1527 ELFDumperStyle->printVersionSymbolSection(ObjF->getELFFile(), 1528 SymbolVersionSection); 1529 1530 // Dump version definition section. 1531 ELFDumperStyle->printVersionDefinitionSection(ObjF->getELFFile(), 1532 SymbolVersionDefSection); 1533 1534 // Dump version dependency section. 1535 ELFDumperStyle->printVersionDependencySection(ObjF->getELFFile(), 1536 SymbolVersionNeedSection); 1537 } 1538 1539 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() { 1540 ELFDumperStyle->printDynamicRelocations(ObjF->getELFFile()); 1541 } 1542 1543 template <class ELFT> 1544 void ELFDumper<ELFT>::printSymbols(bool PrintSymbols, 1545 bool PrintDynamicSymbols) { 1546 ELFDumperStyle->printSymbols(ObjF->getELFFile(), PrintSymbols, 1547 PrintDynamicSymbols); 1548 } 1549 1550 template <class ELFT> 1551 void ELFDumper<ELFT>::printHashSymbols() { 1552 ELFDumperStyle->printHashSymbols(ObjF->getELFFile()); 1553 } 1554 1555 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() { 1556 ELFDumperStyle->printHashHistogram(ObjF->getELFFile()); 1557 } 1558 1559 template <class ELFT> void ELFDumper<ELFT>::printCGProfile() { 1560 ELFDumperStyle->printCGProfile(ObjF->getELFFile()); 1561 } 1562 1563 template <class ELFT> void ELFDumper<ELFT>::printNotes() { 1564 ELFDumperStyle->printNotes(ObjF->getELFFile()); 1565 } 1566 1567 template <class ELFT> void ELFDumper<ELFT>::printELFLinkerOptions() { 1568 ELFDumperStyle->printELFLinkerOptions(ObjF->getELFFile()); 1569 } 1570 1571 static const char *getTypeString(unsigned Arch, uint64_t Type) { 1572 #define DYNAMIC_TAG(n, v) 1573 switch (Arch) { 1574 case EM_HEXAGON: 1575 switch (Type) { 1576 #define HEXAGON_DYNAMIC_TAG(name, value) \ 1577 case DT_##name: \ 1578 return #name; 1579 #include "llvm/BinaryFormat/DynamicTags.def" 1580 #undef HEXAGON_DYNAMIC_TAG 1581 } 1582 break; 1583 1584 case EM_MIPS: 1585 switch (Type) { 1586 #define MIPS_DYNAMIC_TAG(name, value) \ 1587 case DT_##name: \ 1588 return #name; 1589 #include "llvm/BinaryFormat/DynamicTags.def" 1590 #undef MIPS_DYNAMIC_TAG 1591 } 1592 break; 1593 1594 case EM_PPC64: 1595 switch(Type) { 1596 #define PPC64_DYNAMIC_TAG(name, value) \ 1597 case DT_##name: \ 1598 return #name; 1599 #include "llvm/BinaryFormat/DynamicTags.def" 1600 #undef PPC64_DYNAMIC_TAG 1601 } 1602 break; 1603 } 1604 #undef DYNAMIC_TAG 1605 switch (Type) { 1606 // Now handle all dynamic tags except the architecture specific ones 1607 #define MIPS_DYNAMIC_TAG(name, value) 1608 #define HEXAGON_DYNAMIC_TAG(name, value) 1609 #define PPC64_DYNAMIC_TAG(name, value) 1610 // Also ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc. 1611 #define DYNAMIC_TAG_MARKER(name, value) 1612 #define DYNAMIC_TAG(name, value) \ 1613 case DT_##name: \ 1614 return #name; 1615 #include "llvm/BinaryFormat/DynamicTags.def" 1616 #undef DYNAMIC_TAG 1617 #undef MIPS_DYNAMIC_TAG 1618 #undef HEXAGON_DYNAMIC_TAG 1619 #undef PPC64_DYNAMIC_TAG 1620 #undef DYNAMIC_TAG_MARKER 1621 default: return "unknown"; 1622 } 1623 } 1624 1625 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \ 1626 { #enum, prefix##_##enum } 1627 1628 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = { 1629 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN), 1630 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC), 1631 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL), 1632 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW), 1633 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS) 1634 }; 1635 1636 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = { 1637 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW), 1638 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL), 1639 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP), 1640 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE), 1641 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR), 1642 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST), 1643 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN), 1644 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN), 1645 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT), 1646 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS), 1647 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE), 1648 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB), 1649 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP), 1650 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT), 1651 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE), 1652 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE), 1653 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELPND), 1654 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT), 1655 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF), 1656 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS), 1657 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR), 1658 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED), 1659 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC), 1660 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE), 1661 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT), 1662 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON) 1663 }; 1664 1665 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = { 1666 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE), 1667 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART), 1668 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT), 1669 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT), 1670 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE), 1671 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY), 1672 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT), 1673 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS), 1674 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT), 1675 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE), 1676 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD), 1677 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART), 1678 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED), 1679 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD), 1680 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF), 1681 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE) 1682 }; 1683 1684 #undef LLVM_READOBJ_DT_FLAG_ENT 1685 1686 template <typename T, typename TFlag> 1687 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) { 1688 using FlagEntry = EnumEntry<TFlag>; 1689 using FlagVector = SmallVector<FlagEntry, 10>; 1690 FlagVector SetFlags; 1691 1692 for (const auto &Flag : Flags) { 1693 if (Flag.Value == 0) 1694 continue; 1695 1696 if ((Value & Flag.Value) == Flag.Value) 1697 SetFlags.push_back(Flag); 1698 } 1699 1700 for (const auto &Flag : SetFlags) { 1701 OS << Flag.Name << " "; 1702 } 1703 } 1704 1705 template <class ELFT> 1706 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const { 1707 if (Value >= DynamicStringTable.size()) 1708 reportError("Invalid dynamic string table reference"); 1709 return StringRef(DynamicStringTable.data() + Value); 1710 } 1711 1712 static void printLibrary(raw_ostream &OS, const Twine &Tag, const Twine &Name) { 1713 OS << Tag << ": [" << Name << "]"; 1714 } 1715 1716 template <class ELFT> 1717 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { 1718 raw_ostream &OS = W.getOStream(); 1719 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64; 1720 switch (Type) { 1721 case DT_PLTREL: 1722 if (Value == DT_REL) { 1723 OS << "REL"; 1724 break; 1725 } else if (Value == DT_RELA) { 1726 OS << "RELA"; 1727 break; 1728 } 1729 LLVM_FALLTHROUGH; 1730 case DT_PLTGOT: 1731 case DT_HASH: 1732 case DT_STRTAB: 1733 case DT_SYMTAB: 1734 case DT_RELA: 1735 case DT_INIT: 1736 case DT_FINI: 1737 case DT_REL: 1738 case DT_JMPREL: 1739 case DT_INIT_ARRAY: 1740 case DT_FINI_ARRAY: 1741 case DT_PREINIT_ARRAY: 1742 case DT_DEBUG: 1743 case DT_VERDEF: 1744 case DT_VERNEED: 1745 case DT_VERSYM: 1746 case DT_GNU_HASH: 1747 case DT_NULL: 1748 case DT_MIPS_BASE_ADDRESS: 1749 case DT_MIPS_GOTSYM: 1750 case DT_MIPS_RLD_MAP: 1751 case DT_MIPS_RLD_MAP_REL: 1752 case DT_MIPS_PLTGOT: 1753 case DT_MIPS_OPTIONS: 1754 OS << format(ConvChar, Value); 1755 break; 1756 case DT_RELACOUNT: 1757 case DT_RELCOUNT: 1758 case DT_VERDEFNUM: 1759 case DT_VERNEEDNUM: 1760 case DT_MIPS_RLD_VERSION: 1761 case DT_MIPS_LOCAL_GOTNO: 1762 case DT_MIPS_SYMTABNO: 1763 case DT_MIPS_UNREFEXTNO: 1764 OS << Value; 1765 break; 1766 case DT_PLTRELSZ: 1767 case DT_RELASZ: 1768 case DT_RELAENT: 1769 case DT_STRSZ: 1770 case DT_SYMENT: 1771 case DT_RELSZ: 1772 case DT_RELENT: 1773 case DT_INIT_ARRAYSZ: 1774 case DT_FINI_ARRAYSZ: 1775 case DT_PREINIT_ARRAYSZ: 1776 case DT_ANDROID_RELSZ: 1777 case DT_ANDROID_RELASZ: 1778 OS << Value << " (bytes)"; 1779 break; 1780 case DT_NEEDED: 1781 printLibrary(OS, "Shared library", getDynamicString(Value)); 1782 break; 1783 case DT_SONAME: 1784 printLibrary(OS, "Library soname", getDynamicString(Value)); 1785 break; 1786 case DT_AUXILIARY: 1787 printLibrary(OS, "Auxiliary library", getDynamicString(Value)); 1788 break; 1789 case DT_USED: 1790 printLibrary(OS, "Not needed object", getDynamicString(Value)); 1791 break; 1792 case DT_FILTER: 1793 printLibrary(OS, "Filter library", getDynamicString(Value)); 1794 break; 1795 case DT_RPATH: 1796 case DT_RUNPATH: 1797 OS << getDynamicString(Value); 1798 break; 1799 case DT_MIPS_FLAGS: 1800 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS); 1801 break; 1802 case DT_FLAGS: 1803 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS); 1804 break; 1805 case DT_FLAGS_1: 1806 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS); 1807 break; 1808 default: 1809 OS << format(ConvChar, Value); 1810 break; 1811 } 1812 } 1813 1814 template <class ELFT> 1815 void ELFDumper<ELFT>::printUnwindInfo() { 1816 DwarfCFIEH::PrinterContext<ELFT> Ctx(W, ObjF); 1817 Ctx.printUnwindInformation(); 1818 } 1819 1820 namespace { 1821 1822 template <> void ELFDumper<ELF32LE>::printUnwindInfo() { 1823 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile(); 1824 const unsigned Machine = Obj->getHeader()->e_machine; 1825 if (Machine == EM_ARM) { 1826 ARM::EHABI::PrinterContext<ELF32LE> Ctx(W, Obj, DotSymtabSec); 1827 Ctx.PrintUnwindInformation(); 1828 } 1829 DwarfCFIEH::PrinterContext<ELF32LE> Ctx(W, ObjF); 1830 Ctx.printUnwindInformation(); 1831 } 1832 1833 } // end anonymous namespace 1834 1835 template <class ELFT> 1836 void ELFDumper<ELFT>::printDynamicTable() { 1837 // A valid .dynamic section contains an array of entries terminated with 1838 // a DT_NULL entry. However, sometimes the section content may continue 1839 // past the DT_NULL entry, so to dump the section correctly, we first find 1840 // the end of the entries by iterating over them. 1841 size_t Size = 0; 1842 Elf_Dyn_Range DynTableEntries = dynamic_table(); 1843 for (; Size < DynTableEntries.size();) 1844 if (DynTableEntries[Size++].getTag() == DT_NULL) 1845 break; 1846 1847 if (!Size) 1848 return; 1849 1850 raw_ostream &OS = W.getOStream(); 1851 W.startLine() << "DynamicSection [ (" << Size << " entries)\n"; 1852 1853 bool Is64 = ELFT::Is64Bits; 1854 W.startLine() 1855 << " Tag" << (Is64 ? " " : " ") << "Type" 1856 << " " << "Name/Value\n"; 1857 for (size_t I = 0; I < Size; ++I) { 1858 const Elf_Dyn &Entry = DynTableEntries[I]; 1859 uintX_t Tag = Entry.getTag(); 1860 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " " 1861 << format("%-21s", getTypeString(ObjF->getELFFile()->getHeader()->e_machine, Tag)); 1862 printValue(Tag, Entry.getVal()); 1863 OS << "\n"; 1864 } 1865 1866 W.startLine() << "]\n"; 1867 } 1868 1869 template <class ELFT> 1870 void ELFDumper<ELFT>::printNeededLibraries() { 1871 ListScope D(W, "NeededLibraries"); 1872 1873 using LibsTy = std::vector<StringRef>; 1874 LibsTy Libs; 1875 1876 for (const auto &Entry : dynamic_table()) 1877 if (Entry.d_tag == ELF::DT_NEEDED) 1878 Libs.push_back(getDynamicString(Entry.d_un.d_val)); 1879 1880 llvm::stable_sort(Libs); 1881 1882 for (const auto &L : Libs) 1883 W.startLine() << L << "\n"; 1884 } 1885 1886 1887 template <typename ELFT> 1888 void ELFDumper<ELFT>::printHashTable() { 1889 DictScope D(W, "HashTable"); 1890 if (!HashTable) 1891 return; 1892 W.printNumber("Num Buckets", HashTable->nbucket); 1893 W.printNumber("Num Chains", HashTable->nchain); 1894 W.printList("Buckets", HashTable->buckets()); 1895 W.printList("Chains", HashTable->chains()); 1896 } 1897 1898 template <typename ELFT> 1899 void ELFDumper<ELFT>::printGnuHashTable() { 1900 DictScope D(W, "GnuHashTable"); 1901 if (!GnuHashTable) 1902 return; 1903 W.printNumber("Num Buckets", GnuHashTable->nbuckets); 1904 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx); 1905 W.printNumber("Num Mask Words", GnuHashTable->maskwords); 1906 W.printNumber("Shift Count", GnuHashTable->shift2); 1907 W.printHexList("Bloom Filter", GnuHashTable->filter()); 1908 W.printList("Buckets", GnuHashTable->buckets()); 1909 Elf_Sym_Range Syms = dynamic_symbols(); 1910 unsigned NumSyms = std::distance(Syms.begin(), Syms.end()); 1911 if (!NumSyms) 1912 reportError("No dynamic symbol section"); 1913 W.printHexList("Values", GnuHashTable->values(NumSyms)); 1914 } 1915 1916 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() { 1917 W.printString("LoadName", SOName); 1918 } 1919 1920 template <class ELFT> 1921 void ELFDumper<ELFT>::printAttributes() { 1922 W.startLine() << "Attributes not implemented.\n"; 1923 } 1924 1925 namespace { 1926 1927 template <> void ELFDumper<ELF32LE>::printAttributes() { 1928 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile(); 1929 if (Obj->getHeader()->e_machine != EM_ARM) { 1930 W.startLine() << "Attributes not implemented.\n"; 1931 return; 1932 } 1933 1934 DictScope BA(W, "BuildAttributes"); 1935 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1936 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES) 1937 continue; 1938 1939 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec)); 1940 if (Contents[0] != ARMBuildAttrs::Format_Version) { 1941 errs() << "unrecognised FormatVersion: 0x" 1942 << Twine::utohexstr(Contents[0]) << '\n'; 1943 continue; 1944 } 1945 1946 W.printHex("FormatVersion", Contents[0]); 1947 if (Contents.size() == 1) 1948 continue; 1949 1950 ARMAttributeParser(&W).Parse(Contents, true); 1951 } 1952 } 1953 1954 template <class ELFT> class MipsGOTParser { 1955 public: 1956 TYPEDEF_ELF_TYPES(ELFT) 1957 using Entry = typename ELFO::Elf_Addr; 1958 using Entries = ArrayRef<Entry>; 1959 1960 const bool IsStatic; 1961 const ELFO * const Obj; 1962 1963 MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, Elf_Sym_Range DynSyms); 1964 1965 bool hasGot() const { return !GotEntries.empty(); } 1966 bool hasPlt() const { return !PltEntries.empty(); } 1967 1968 uint64_t getGp() const; 1969 1970 const Entry *getGotLazyResolver() const; 1971 const Entry *getGotModulePointer() const; 1972 const Entry *getPltLazyResolver() const; 1973 const Entry *getPltModulePointer() const; 1974 1975 Entries getLocalEntries() const; 1976 Entries getGlobalEntries() const; 1977 Entries getOtherEntries() const; 1978 Entries getPltEntries() const; 1979 1980 uint64_t getGotAddress(const Entry * E) const; 1981 int64_t getGotOffset(const Entry * E) const; 1982 const Elf_Sym *getGotSym(const Entry *E) const; 1983 1984 uint64_t getPltAddress(const Entry * E) const; 1985 const Elf_Sym *getPltSym(const Entry *E) const; 1986 1987 StringRef getPltStrTable() const { return PltStrTable; } 1988 1989 private: 1990 const Elf_Shdr *GotSec; 1991 size_t LocalNum; 1992 size_t GlobalNum; 1993 1994 const Elf_Shdr *PltSec; 1995 const Elf_Shdr *PltRelSec; 1996 const Elf_Shdr *PltSymTable; 1997 Elf_Sym_Range GotDynSyms; 1998 StringRef PltStrTable; 1999 2000 Entries GotEntries; 2001 Entries PltEntries; 2002 }; 2003 2004 } // end anonymous namespace 2005 2006 template <class ELFT> 2007 MipsGOTParser<ELFT>::MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, 2008 Elf_Sym_Range DynSyms) 2009 : IsStatic(DynTable.empty()), Obj(Obj), GotSec(nullptr), LocalNum(0), 2010 GlobalNum(0), PltSec(nullptr), PltRelSec(nullptr), PltSymTable(nullptr) { 2011 // See "Global Offset Table" in Chapter 5 in the following document 2012 // for detailed GOT description. 2013 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf 2014 2015 // Find static GOT secton. 2016 if (IsStatic) { 2017 GotSec = findSectionByName(*Obj, ".got"); 2018 if (!GotSec) 2019 reportError("Cannot find .got section"); 2020 2021 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2022 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2023 Content.size() / sizeof(Entry)); 2024 LocalNum = GotEntries.size(); 2025 return; 2026 } 2027 2028 // Lookup dynamic table tags which define GOT/PLT layouts. 2029 Optional<uint64_t> DtPltGot; 2030 Optional<uint64_t> DtLocalGotNum; 2031 Optional<uint64_t> DtGotSym; 2032 Optional<uint64_t> DtMipsPltGot; 2033 Optional<uint64_t> DtJmpRel; 2034 for (const auto &Entry : DynTable) { 2035 switch (Entry.getTag()) { 2036 case ELF::DT_PLTGOT: 2037 DtPltGot = Entry.getVal(); 2038 break; 2039 case ELF::DT_MIPS_LOCAL_GOTNO: 2040 DtLocalGotNum = Entry.getVal(); 2041 break; 2042 case ELF::DT_MIPS_GOTSYM: 2043 DtGotSym = Entry.getVal(); 2044 break; 2045 case ELF::DT_MIPS_PLTGOT: 2046 DtMipsPltGot = Entry.getVal(); 2047 break; 2048 case ELF::DT_JMPREL: 2049 DtJmpRel = Entry.getVal(); 2050 break; 2051 } 2052 } 2053 2054 // Find dynamic GOT section. 2055 if (DtPltGot || DtLocalGotNum || DtGotSym) { 2056 if (!DtPltGot) 2057 report_fatal_error("Cannot find PLTGOT dynamic table tag."); 2058 if (!DtLocalGotNum) 2059 report_fatal_error("Cannot find MIPS_LOCAL_GOTNO dynamic table tag."); 2060 if (!DtGotSym) 2061 report_fatal_error("Cannot find MIPS_GOTSYM dynamic table tag."); 2062 2063 size_t DynSymTotal = DynSyms.size(); 2064 if (*DtGotSym > DynSymTotal) 2065 reportError("MIPS_GOTSYM exceeds a number of dynamic symbols"); 2066 2067 GotSec = findNotEmptySectionByAddress(Obj, *DtPltGot); 2068 if (!GotSec) 2069 reportError("There is no not empty GOT section at 0x" + 2070 Twine::utohexstr(*DtPltGot)); 2071 2072 LocalNum = *DtLocalGotNum; 2073 GlobalNum = DynSymTotal - *DtGotSym; 2074 2075 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2076 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2077 Content.size() / sizeof(Entry)); 2078 GotDynSyms = DynSyms.drop_front(*DtGotSym); 2079 } 2080 2081 // Find PLT section. 2082 if (DtMipsPltGot || DtJmpRel) { 2083 if (!DtMipsPltGot) 2084 report_fatal_error("Cannot find MIPS_PLTGOT dynamic table tag."); 2085 if (!DtJmpRel) 2086 report_fatal_error("Cannot find JMPREL dynamic table tag."); 2087 2088 PltSec = findNotEmptySectionByAddress(Obj, *DtMipsPltGot); 2089 if (!PltSec) 2090 report_fatal_error("There is no not empty PLTGOT section at 0x " + 2091 Twine::utohexstr(*DtMipsPltGot)); 2092 2093 PltRelSec = findNotEmptySectionByAddress(Obj, *DtJmpRel); 2094 if (!PltRelSec) 2095 report_fatal_error("There is no not empty RELPLT section at 0x" + 2096 Twine::utohexstr(*DtJmpRel)); 2097 2098 ArrayRef<uint8_t> PltContent = 2099 unwrapOrError(Obj->getSectionContents(PltSec)); 2100 PltEntries = Entries(reinterpret_cast<const Entry *>(PltContent.data()), 2101 PltContent.size() / sizeof(Entry)); 2102 2103 PltSymTable = unwrapOrError(Obj->getSection(PltRelSec->sh_link)); 2104 PltStrTable = unwrapOrError(Obj->getStringTableForSymtab(*PltSymTable)); 2105 } 2106 } 2107 2108 template <class ELFT> uint64_t MipsGOTParser<ELFT>::getGp() const { 2109 return GotSec->sh_addr + 0x7ff0; 2110 } 2111 2112 template <class ELFT> 2113 const typename MipsGOTParser<ELFT>::Entry * 2114 MipsGOTParser<ELFT>::getGotLazyResolver() const { 2115 return LocalNum > 0 ? &GotEntries[0] : nullptr; 2116 } 2117 2118 template <class ELFT> 2119 const typename MipsGOTParser<ELFT>::Entry * 2120 MipsGOTParser<ELFT>::getGotModulePointer() const { 2121 if (LocalNum < 2) 2122 return nullptr; 2123 const Entry &E = GotEntries[1]; 2124 if ((E >> (sizeof(Entry) * 8 - 1)) == 0) 2125 return nullptr; 2126 return &E; 2127 } 2128 2129 template <class ELFT> 2130 typename MipsGOTParser<ELFT>::Entries 2131 MipsGOTParser<ELFT>::getLocalEntries() const { 2132 size_t Skip = getGotModulePointer() ? 2 : 1; 2133 if (LocalNum - Skip <= 0) 2134 return Entries(); 2135 return GotEntries.slice(Skip, LocalNum - Skip); 2136 } 2137 2138 template <class ELFT> 2139 typename MipsGOTParser<ELFT>::Entries 2140 MipsGOTParser<ELFT>::getGlobalEntries() const { 2141 if (GlobalNum == 0) 2142 return Entries(); 2143 return GotEntries.slice(LocalNum, GlobalNum); 2144 } 2145 2146 template <class ELFT> 2147 typename MipsGOTParser<ELFT>::Entries 2148 MipsGOTParser<ELFT>::getOtherEntries() const { 2149 size_t OtherNum = GotEntries.size() - LocalNum - GlobalNum; 2150 if (OtherNum == 0) 2151 return Entries(); 2152 return GotEntries.slice(LocalNum + GlobalNum, OtherNum); 2153 } 2154 2155 template <class ELFT> 2156 uint64_t MipsGOTParser<ELFT>::getGotAddress(const Entry *E) const { 2157 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2158 return GotSec->sh_addr + Offset; 2159 } 2160 2161 template <class ELFT> 2162 int64_t MipsGOTParser<ELFT>::getGotOffset(const Entry *E) const { 2163 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2164 return Offset - 0x7ff0; 2165 } 2166 2167 template <class ELFT> 2168 const typename MipsGOTParser<ELFT>::Elf_Sym * 2169 MipsGOTParser<ELFT>::getGotSym(const Entry *E) const { 2170 int64_t Offset = std::distance(GotEntries.data(), E); 2171 return &GotDynSyms[Offset - LocalNum]; 2172 } 2173 2174 template <class ELFT> 2175 const typename MipsGOTParser<ELFT>::Entry * 2176 MipsGOTParser<ELFT>::getPltLazyResolver() const { 2177 return PltEntries.empty() ? nullptr : &PltEntries[0]; 2178 } 2179 2180 template <class ELFT> 2181 const typename MipsGOTParser<ELFT>::Entry * 2182 MipsGOTParser<ELFT>::getPltModulePointer() const { 2183 return PltEntries.size() < 2 ? nullptr : &PltEntries[1]; 2184 } 2185 2186 template <class ELFT> 2187 typename MipsGOTParser<ELFT>::Entries 2188 MipsGOTParser<ELFT>::getPltEntries() const { 2189 if (PltEntries.size() <= 2) 2190 return Entries(); 2191 return PltEntries.slice(2, PltEntries.size() - 2); 2192 } 2193 2194 template <class ELFT> 2195 uint64_t MipsGOTParser<ELFT>::getPltAddress(const Entry *E) const { 2196 int64_t Offset = std::distance(PltEntries.data(), E) * sizeof(Entry); 2197 return PltSec->sh_addr + Offset; 2198 } 2199 2200 template <class ELFT> 2201 const typename MipsGOTParser<ELFT>::Elf_Sym * 2202 MipsGOTParser<ELFT>::getPltSym(const Entry *E) const { 2203 int64_t Offset = std::distance(getPltEntries().data(), E); 2204 if (PltRelSec->sh_type == ELF::SHT_REL) { 2205 Elf_Rel_Range Rels = unwrapOrError(Obj->rels(PltRelSec)); 2206 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2207 } else { 2208 Elf_Rela_Range Rels = unwrapOrError(Obj->relas(PltRelSec)); 2209 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2210 } 2211 } 2212 2213 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() { 2214 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2215 if (Obj->getHeader()->e_machine != EM_MIPS) 2216 reportError("MIPS PLT GOT is available for MIPS targets only"); 2217 2218 MipsGOTParser<ELFT> Parser(Obj, dynamic_table(), dynamic_symbols()); 2219 if (Parser.hasGot()) 2220 ELFDumperStyle->printMipsGOT(Parser); 2221 if (Parser.hasPlt()) 2222 ELFDumperStyle->printMipsPLT(Parser); 2223 } 2224 2225 static const EnumEntry<unsigned> ElfMipsISAExtType[] = { 2226 {"None", Mips::AFL_EXT_NONE}, 2227 {"Broadcom SB-1", Mips::AFL_EXT_SB1}, 2228 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON}, 2229 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2}, 2230 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP}, 2231 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3}, 2232 {"LSI R4010", Mips::AFL_EXT_4010}, 2233 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E}, 2234 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F}, 2235 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A}, 2236 {"MIPS R4650", Mips::AFL_EXT_4650}, 2237 {"MIPS R5900", Mips::AFL_EXT_5900}, 2238 {"MIPS R10000", Mips::AFL_EXT_10000}, 2239 {"NEC VR4100", Mips::AFL_EXT_4100}, 2240 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111}, 2241 {"NEC VR4120", Mips::AFL_EXT_4120}, 2242 {"NEC VR5400", Mips::AFL_EXT_5400}, 2243 {"NEC VR5500", Mips::AFL_EXT_5500}, 2244 {"RMI Xlr", Mips::AFL_EXT_XLR}, 2245 {"Toshiba R3900", Mips::AFL_EXT_3900} 2246 }; 2247 2248 static const EnumEntry<unsigned> ElfMipsASEFlags[] = { 2249 {"DSP", Mips::AFL_ASE_DSP}, 2250 {"DSPR2", Mips::AFL_ASE_DSPR2}, 2251 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA}, 2252 {"MCU", Mips::AFL_ASE_MCU}, 2253 {"MDMX", Mips::AFL_ASE_MDMX}, 2254 {"MIPS-3D", Mips::AFL_ASE_MIPS3D}, 2255 {"MT", Mips::AFL_ASE_MT}, 2256 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS}, 2257 {"VZ", Mips::AFL_ASE_VIRT}, 2258 {"MSA", Mips::AFL_ASE_MSA}, 2259 {"MIPS16", Mips::AFL_ASE_MIPS16}, 2260 {"microMIPS", Mips::AFL_ASE_MICROMIPS}, 2261 {"XPA", Mips::AFL_ASE_XPA}, 2262 {"CRC", Mips::AFL_ASE_CRC}, 2263 {"GINV", Mips::AFL_ASE_GINV}, 2264 }; 2265 2266 static const EnumEntry<unsigned> ElfMipsFpABIType[] = { 2267 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY}, 2268 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE}, 2269 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE}, 2270 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT}, 2271 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)", 2272 Mips::Val_GNU_MIPS_ABI_FP_OLD_64}, 2273 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX}, 2274 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64}, 2275 {"Hard float compat (32-bit CPU, 64-bit FPU)", 2276 Mips::Val_GNU_MIPS_ABI_FP_64A} 2277 }; 2278 2279 static const EnumEntry<unsigned> ElfMipsFlags1[] { 2280 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG}, 2281 }; 2282 2283 static int getMipsRegisterSize(uint8_t Flag) { 2284 switch (Flag) { 2285 case Mips::AFL_REG_NONE: 2286 return 0; 2287 case Mips::AFL_REG_32: 2288 return 32; 2289 case Mips::AFL_REG_64: 2290 return 64; 2291 case Mips::AFL_REG_128: 2292 return 128; 2293 default: 2294 return -1; 2295 } 2296 } 2297 2298 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { 2299 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2300 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags"); 2301 if (!Shdr) { 2302 W.startLine() << "There is no .MIPS.abiflags section in the file.\n"; 2303 return; 2304 } 2305 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2306 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) { 2307 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n"; 2308 return; 2309 } 2310 2311 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data()); 2312 2313 raw_ostream &OS = W.getOStream(); 2314 DictScope GS(W, "MIPS ABI Flags"); 2315 2316 W.printNumber("Version", Flags->version); 2317 W.startLine() << "ISA: "; 2318 if (Flags->isa_rev <= 1) 2319 OS << format("MIPS%u", Flags->isa_level); 2320 else 2321 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev); 2322 OS << "\n"; 2323 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType)); 2324 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags)); 2325 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType)); 2326 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size)); 2327 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size)); 2328 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size)); 2329 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1)); 2330 W.printHex("Flags 2", Flags->flags2); 2331 } 2332 2333 template <class ELFT> 2334 static void printMipsReginfoData(ScopedPrinter &W, 2335 const Elf_Mips_RegInfo<ELFT> &Reginfo) { 2336 W.printHex("GP", Reginfo.ri_gp_value); 2337 W.printHex("General Mask", Reginfo.ri_gprmask); 2338 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]); 2339 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]); 2340 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]); 2341 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]); 2342 } 2343 2344 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() { 2345 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2346 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo"); 2347 if (!Shdr) { 2348 W.startLine() << "There is no .reginfo section in the file.\n"; 2349 return; 2350 } 2351 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2352 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) { 2353 W.startLine() << "The .reginfo section has a wrong size.\n"; 2354 return; 2355 } 2356 2357 DictScope GS(W, "MIPS RegInfo"); 2358 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data()); 2359 printMipsReginfoData(W, *Reginfo); 2360 } 2361 2362 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() { 2363 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2364 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options"); 2365 if (!Shdr) { 2366 W.startLine() << "There is no .MIPS.options section in the file.\n"; 2367 return; 2368 } 2369 2370 DictScope GS(W, "MIPS Options"); 2371 2372 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2373 while (!Sec.empty()) { 2374 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) { 2375 W.startLine() << "The .MIPS.options section has a wrong size.\n"; 2376 return; 2377 } 2378 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data()); 2379 DictScope GS(W, getElfMipsOptionsOdkType(O->kind)); 2380 switch (O->kind) { 2381 case ODK_REGINFO: 2382 printMipsReginfoData(W, O->getRegInfo()); 2383 break; 2384 default: 2385 W.startLine() << "Unsupported MIPS options tag.\n"; 2386 break; 2387 } 2388 Sec = Sec.slice(O->size); 2389 } 2390 } 2391 2392 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const { 2393 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2394 const Elf_Shdr *StackMapSection = nullptr; 2395 for (const auto &Sec : unwrapOrError(Obj->sections())) { 2396 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2397 if (Name == ".llvm_stackmaps") { 2398 StackMapSection = &Sec; 2399 break; 2400 } 2401 } 2402 2403 if (!StackMapSection) 2404 return; 2405 2406 ArrayRef<uint8_t> StackMapContentsArray = 2407 unwrapOrError(Obj->getSectionContents(StackMapSection)); 2408 2409 prettyPrintStackMap( 2410 W, StackMapParser<ELFT::TargetEndianness>(StackMapContentsArray)); 2411 } 2412 2413 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() { 2414 ELFDumperStyle->printGroupSections(ObjF->getELFFile()); 2415 } 2416 2417 template <class ELFT> void ELFDumper<ELFT>::printAddrsig() { 2418 ELFDumperStyle->printAddrsig(ObjF->getELFFile()); 2419 } 2420 2421 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1, 2422 StringRef Str2) { 2423 OS.PadToColumn(2u); 2424 OS << Str1; 2425 OS.PadToColumn(37u); 2426 OS << Str2 << "\n"; 2427 OS.flush(); 2428 } 2429 2430 template <class ELFT> 2431 static std::string getSectionHeadersNumString(const ELFFile<ELFT> *Obj) { 2432 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2433 if (ElfHeader->e_shnum != 0) 2434 return to_string(ElfHeader->e_shnum); 2435 2436 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2437 if (Arr.empty()) 2438 return "0"; 2439 return "0 (" + to_string(Arr[0].sh_size) + ")"; 2440 } 2441 2442 template <class ELFT> 2443 static std::string getSectionHeaderTableIndexString(const ELFFile<ELFT> *Obj) { 2444 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2445 if (ElfHeader->e_shstrndx != SHN_XINDEX) 2446 return to_string(ElfHeader->e_shstrndx); 2447 2448 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2449 if (Arr.empty()) 2450 return "65535 (corrupt: out of range)"; 2451 return to_string(ElfHeader->e_shstrndx) + " (" + to_string(Arr[0].sh_link) + ")"; 2452 } 2453 2454 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 2455 const Elf_Ehdr *e = Obj->getHeader(); 2456 OS << "ELF Header:\n"; 2457 OS << " Magic: "; 2458 std::string Str; 2459 for (int i = 0; i < ELF::EI_NIDENT; i++) 2460 OS << format(" %02x", static_cast<int>(e->e_ident[i])); 2461 OS << "\n"; 2462 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 2463 printFields(OS, "Class:", Str); 2464 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding)); 2465 printFields(OS, "Data:", Str); 2466 OS.PadToColumn(2u); 2467 OS << "Version:"; 2468 OS.PadToColumn(37u); 2469 OS << to_hexString(e->e_ident[ELF::EI_VERSION]); 2470 if (e->e_version == ELF::EV_CURRENT) 2471 OS << " (current)"; 2472 OS << "\n"; 2473 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI)); 2474 printFields(OS, "OS/ABI:", Str); 2475 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]); 2476 printFields(OS, "ABI Version:", Str); 2477 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType)); 2478 printFields(OS, "Type:", Str); 2479 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType)); 2480 printFields(OS, "Machine:", Str); 2481 Str = "0x" + to_hexString(e->e_version); 2482 printFields(OS, "Version:", Str); 2483 Str = "0x" + to_hexString(e->e_entry); 2484 printFields(OS, "Entry point address:", Str); 2485 Str = to_string(e->e_phoff) + " (bytes into file)"; 2486 printFields(OS, "Start of program headers:", Str); 2487 Str = to_string(e->e_shoff) + " (bytes into file)"; 2488 printFields(OS, "Start of section headers:", Str); 2489 std::string ElfFlags; 2490 if (e->e_machine == EM_MIPS) 2491 ElfFlags = 2492 printFlags(e->e_flags, makeArrayRef(ElfHeaderMipsFlags), 2493 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 2494 unsigned(ELF::EF_MIPS_MACH)); 2495 else if (e->e_machine == EM_RISCV) 2496 ElfFlags = printFlags(e->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); 2497 Str = "0x" + to_hexString(e->e_flags); 2498 if (!ElfFlags.empty()) 2499 Str = Str + ", " + ElfFlags; 2500 printFields(OS, "Flags:", Str); 2501 Str = to_string(e->e_ehsize) + " (bytes)"; 2502 printFields(OS, "Size of this header:", Str); 2503 Str = to_string(e->e_phentsize) + " (bytes)"; 2504 printFields(OS, "Size of program headers:", Str); 2505 Str = to_string(e->e_phnum); 2506 printFields(OS, "Number of program headers:", Str); 2507 Str = to_string(e->e_shentsize) + " (bytes)"; 2508 printFields(OS, "Size of section headers:", Str); 2509 Str = getSectionHeadersNumString(Obj); 2510 printFields(OS, "Number of section headers:", Str); 2511 Str = getSectionHeaderTableIndexString(Obj); 2512 printFields(OS, "Section header string table index:", Str); 2513 } 2514 2515 namespace { 2516 struct GroupMember { 2517 StringRef Name; 2518 uint64_t Index; 2519 }; 2520 2521 struct GroupSection { 2522 StringRef Name; 2523 std::string Signature; 2524 uint64_t ShName; 2525 uint64_t Index; 2526 uint32_t Link; 2527 uint32_t Info; 2528 uint32_t Type; 2529 std::vector<GroupMember> Members; 2530 }; 2531 2532 template <class ELFT> 2533 std::vector<GroupSection> getGroups(const ELFFile<ELFT> *Obj) { 2534 using Elf_Shdr = typename ELFT::Shdr; 2535 using Elf_Sym = typename ELFT::Sym; 2536 using Elf_Word = typename ELFT::Word; 2537 2538 std::vector<GroupSection> Ret; 2539 uint64_t I = 0; 2540 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2541 ++I; 2542 if (Sec.sh_type != ELF::SHT_GROUP) 2543 continue; 2544 2545 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2546 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 2547 const Elf_Sym *Sym = 2548 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 2549 auto Data = 2550 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 2551 2552 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2553 StringRef Signature = StrTable.data() + Sym->st_name; 2554 Ret.push_back({Name, 2555 maybeDemangle(Signature), 2556 Sec.sh_name, 2557 I - 1, 2558 Sec.sh_link, 2559 Sec.sh_info, 2560 Data[0], 2561 {}}); 2562 2563 std::vector<GroupMember> &GM = Ret.back().Members; 2564 for (uint32_t Ndx : Data.slice(1)) { 2565 auto Sec = unwrapOrError(Obj->getSection(Ndx)); 2566 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 2567 GM.push_back({Name, Ndx}); 2568 } 2569 } 2570 return Ret; 2571 } 2572 2573 DenseMap<uint64_t, const GroupSection *> 2574 mapSectionsToGroups(ArrayRef<GroupSection> Groups) { 2575 DenseMap<uint64_t, const GroupSection *> Ret; 2576 for (const GroupSection &G : Groups) 2577 for (const GroupMember &GM : G.Members) 2578 Ret.insert({GM.Index, &G}); 2579 return Ret; 2580 } 2581 2582 } // namespace 2583 2584 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) { 2585 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 2586 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 2587 for (const GroupSection &G : V) { 2588 OS << "\n" 2589 << getGroupType(G.Type) << " group section [" 2590 << format_decimal(G.Index, 5) << "] `" << G.Name << "' [" << G.Signature 2591 << "] contains " << G.Members.size() << " sections:\n" 2592 << " [Index] Name\n"; 2593 for (const GroupMember &GM : G.Members) { 2594 const GroupSection *MainGroup = Map[GM.Index]; 2595 if (MainGroup != &G) { 2596 OS.flush(); 2597 errs() << "Error: section [" << format_decimal(GM.Index, 5) 2598 << "] in group section [" << format_decimal(G.Index, 5) 2599 << "] already in group section [" 2600 << format_decimal(MainGroup->Index, 5) << "]"; 2601 errs().flush(); 2602 continue; 2603 } 2604 OS << " [" << format_decimal(GM.Index, 5) << "] " << GM.Name << "\n"; 2605 } 2606 } 2607 2608 if (V.empty()) 2609 OS << "There are no section groups in this file.\n"; 2610 } 2611 2612 template <class ELFT> 2613 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 2614 const Elf_Rela &R, bool IsRela) { 2615 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab)); 2616 std::string TargetName; 2617 if (Sym && Sym->getType() == ELF::STT_SECTION) { 2618 const Elf_Shdr *Sec = unwrapOrError( 2619 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 2620 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 2621 } else if (Sym) { 2622 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 2623 TargetName = this->dumper()->getFullSymbolName( 2624 Sym, StrTable, SymTab->sh_type == SHT_DYNSYM /* IsDynamic */); 2625 } 2626 printRelocation(Obj, Sym, TargetName, R, IsRela); 2627 } 2628 2629 template <class ELFT> 2630 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Sym *Sym, 2631 StringRef SymbolName, const Elf_Rela &R, 2632 bool IsRela) { 2633 // First two fields are bit width dependent. The rest of them are fixed width. 2634 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 2635 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 2636 unsigned Width = ELFT::Is64Bits ? 16 : 8; 2637 2638 Fields[0].Str = to_string(format_hex_no_prefix(R.r_offset, Width)); 2639 Fields[1].Str = to_string(format_hex_no_prefix(R.r_info, Width)); 2640 2641 SmallString<32> RelocName; 2642 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 2643 Fields[2].Str = RelocName.c_str(); 2644 2645 if (Sym && (!SymbolName.empty() || Sym->getValue() != 0)) 2646 Fields[3].Str = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 2647 2648 Fields[4].Str = SymbolName; 2649 for (const Field &F : Fields) 2650 printField(F); 2651 2652 std::string Addend; 2653 if (IsRela) { 2654 int64_t RelAddend = R.r_addend; 2655 if (!SymbolName.empty()) { 2656 if (R.r_addend < 0) { 2657 Addend = " - "; 2658 RelAddend = std::abs(RelAddend); 2659 } else 2660 Addend = " + "; 2661 } 2662 2663 Addend += to_hexString(RelAddend, false); 2664 } 2665 OS << Addend << "\n"; 2666 } 2667 2668 template <class ELFT> void GNUStyle<ELFT>::printRelocHeader(unsigned SType) { 2669 bool IsRela = SType == ELF::SHT_RELA || SType == ELF::SHT_ANDROID_RELA; 2670 bool IsRelr = SType == ELF::SHT_RELR || SType == ELF::SHT_ANDROID_RELR; 2671 if (ELFT::Is64Bits) 2672 OS << " "; 2673 else 2674 OS << " "; 2675 if (IsRelr && opts::RawRelr) 2676 OS << "Data "; 2677 else 2678 OS << "Offset"; 2679 if (ELFT::Is64Bits) 2680 OS << " Info Type" 2681 << " Symbol's Value Symbol's Name"; 2682 else 2683 OS << " Info Type Sym. Value Symbol's Name"; 2684 if (IsRela) 2685 OS << " + Addend"; 2686 OS << "\n"; 2687 } 2688 2689 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) { 2690 bool HasRelocSections = false; 2691 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2692 if (Sec.sh_type != ELF::SHT_REL && 2693 Sec.sh_type != ELF::SHT_RELA && 2694 Sec.sh_type != ELF::SHT_RELR && 2695 Sec.sh_type != ELF::SHT_ANDROID_REL && 2696 Sec.sh_type != ELF::SHT_ANDROID_RELA && 2697 Sec.sh_type != ELF::SHT_ANDROID_RELR) 2698 continue; 2699 HasRelocSections = true; 2700 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2701 unsigned Entries = Sec.getEntityCount(); 2702 std::vector<Elf_Rela> AndroidRelas; 2703 if (Sec.sh_type == ELF::SHT_ANDROID_REL || 2704 Sec.sh_type == ELF::SHT_ANDROID_RELA) { 2705 // Android's packed relocation section needs to be unpacked first 2706 // to get the actual number of entries. 2707 AndroidRelas = unwrapOrError(Obj->android_relas(&Sec)); 2708 Entries = AndroidRelas.size(); 2709 } 2710 std::vector<Elf_Rela> RelrRelas; 2711 if (!opts::RawRelr && (Sec.sh_type == ELF::SHT_RELR || 2712 Sec.sh_type == ELF::SHT_ANDROID_RELR)) { 2713 // .relr.dyn relative relocation section needs to be unpacked first 2714 // to get the actual number of entries. 2715 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(&Sec)); 2716 RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 2717 Entries = RelrRelas.size(); 2718 } 2719 uintX_t Offset = Sec.sh_offset; 2720 OS << "\nRelocation section '" << Name << "' at offset 0x" 2721 << to_hexString(Offset, false) << " contains " << Entries 2722 << " entries:\n"; 2723 printRelocHeader(Sec.sh_type); 2724 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2725 switch (Sec.sh_type) { 2726 case ELF::SHT_REL: 2727 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) { 2728 Elf_Rela Rela; 2729 Rela.r_offset = R.r_offset; 2730 Rela.r_info = R.r_info; 2731 Rela.r_addend = 0; 2732 printRelocation(Obj, SymTab, Rela, false); 2733 } 2734 break; 2735 case ELF::SHT_RELA: 2736 for (const auto &R : unwrapOrError(Obj->relas(&Sec))) 2737 printRelocation(Obj, SymTab, R, true); 2738 break; 2739 case ELF::SHT_RELR: 2740 case ELF::SHT_ANDROID_RELR: 2741 if (opts::RawRelr) 2742 for (const auto &R : unwrapOrError(Obj->relrs(&Sec))) 2743 OS << to_string(format_hex_no_prefix(R, ELFT::Is64Bits ? 16 : 8)) 2744 << "\n"; 2745 else 2746 for (const auto &R : RelrRelas) 2747 printRelocation(Obj, SymTab, R, false); 2748 break; 2749 case ELF::SHT_ANDROID_REL: 2750 case ELF::SHT_ANDROID_RELA: 2751 for (const auto &R : AndroidRelas) 2752 printRelocation(Obj, SymTab, R, Sec.sh_type == ELF::SHT_ANDROID_RELA); 2753 break; 2754 } 2755 } 2756 if (!HasRelocSections) 2757 OS << "\nThere are no relocations in this file.\n"; 2758 } 2759 2760 // Print the offset of a particular section from anyone of the ranges: 2761 // [SHT_LOOS, SHT_HIOS], [SHT_LOPROC, SHT_HIPROC], [SHT_LOUSER, SHT_HIUSER]. 2762 // If 'Type' does not fall within any of those ranges, then a string is 2763 // returned as '<unknown>' followed by the type value. 2764 static std::string getSectionTypeOffsetString(unsigned Type) { 2765 if (Type >= SHT_LOOS && Type <= SHT_HIOS) 2766 return "LOOS+0x" + to_hexString(Type - SHT_LOOS); 2767 else if (Type >= SHT_LOPROC && Type <= SHT_HIPROC) 2768 return "LOPROC+0x" + to_hexString(Type - SHT_LOPROC); 2769 else if (Type >= SHT_LOUSER && Type <= SHT_HIUSER) 2770 return "LOUSER+0x" + to_hexString(Type - SHT_LOUSER); 2771 return "0x" + to_hexString(Type) + ": <unknown>"; 2772 } 2773 2774 static std::string getSectionTypeString(unsigned Arch, unsigned Type) { 2775 using namespace ELF; 2776 2777 switch (Arch) { 2778 case EM_ARM: 2779 switch (Type) { 2780 case SHT_ARM_EXIDX: 2781 return "ARM_EXIDX"; 2782 case SHT_ARM_PREEMPTMAP: 2783 return "ARM_PREEMPTMAP"; 2784 case SHT_ARM_ATTRIBUTES: 2785 return "ARM_ATTRIBUTES"; 2786 case SHT_ARM_DEBUGOVERLAY: 2787 return "ARM_DEBUGOVERLAY"; 2788 case SHT_ARM_OVERLAYSECTION: 2789 return "ARM_OVERLAYSECTION"; 2790 } 2791 break; 2792 case EM_X86_64: 2793 switch (Type) { 2794 case SHT_X86_64_UNWIND: 2795 return "X86_64_UNWIND"; 2796 } 2797 break; 2798 case EM_MIPS: 2799 case EM_MIPS_RS3_LE: 2800 switch (Type) { 2801 case SHT_MIPS_REGINFO: 2802 return "MIPS_REGINFO"; 2803 case SHT_MIPS_OPTIONS: 2804 return "MIPS_OPTIONS"; 2805 case SHT_MIPS_DWARF: 2806 return "MIPS_DWARF"; 2807 case SHT_MIPS_ABIFLAGS: 2808 return "MIPS_ABIFLAGS"; 2809 } 2810 break; 2811 } 2812 switch (Type) { 2813 case SHT_NULL: 2814 return "NULL"; 2815 case SHT_PROGBITS: 2816 return "PROGBITS"; 2817 case SHT_SYMTAB: 2818 return "SYMTAB"; 2819 case SHT_STRTAB: 2820 return "STRTAB"; 2821 case SHT_RELA: 2822 return "RELA"; 2823 case SHT_HASH: 2824 return "HASH"; 2825 case SHT_DYNAMIC: 2826 return "DYNAMIC"; 2827 case SHT_NOTE: 2828 return "NOTE"; 2829 case SHT_NOBITS: 2830 return "NOBITS"; 2831 case SHT_REL: 2832 return "REL"; 2833 case SHT_SHLIB: 2834 return "SHLIB"; 2835 case SHT_DYNSYM: 2836 return "DYNSYM"; 2837 case SHT_INIT_ARRAY: 2838 return "INIT_ARRAY"; 2839 case SHT_FINI_ARRAY: 2840 return "FINI_ARRAY"; 2841 case SHT_PREINIT_ARRAY: 2842 return "PREINIT_ARRAY"; 2843 case SHT_GROUP: 2844 return "GROUP"; 2845 case SHT_SYMTAB_SHNDX: 2846 return "SYMTAB SECTION INDICES"; 2847 case SHT_ANDROID_REL: 2848 return "ANDROID_REL"; 2849 case SHT_ANDROID_RELA: 2850 return "ANDROID_RELA"; 2851 case SHT_RELR: 2852 case SHT_ANDROID_RELR: 2853 return "RELR"; 2854 case SHT_LLVM_ODRTAB: 2855 return "LLVM_ODRTAB"; 2856 case SHT_LLVM_LINKER_OPTIONS: 2857 return "LLVM_LINKER_OPTIONS"; 2858 case SHT_LLVM_CALL_GRAPH_PROFILE: 2859 return "LLVM_CALL_GRAPH_PROFILE"; 2860 case SHT_LLVM_ADDRSIG: 2861 return "LLVM_ADDRSIG"; 2862 // FIXME: Parse processor specific GNU attributes 2863 case SHT_GNU_ATTRIBUTES: 2864 return "ATTRIBUTES"; 2865 case SHT_GNU_HASH: 2866 return "GNU_HASH"; 2867 case SHT_GNU_verdef: 2868 return "VERDEF"; 2869 case SHT_GNU_verneed: 2870 return "VERNEED"; 2871 case SHT_GNU_versym: 2872 return "VERSYM"; 2873 default: 2874 return getSectionTypeOffsetString(Type); 2875 } 2876 return ""; 2877 } 2878 2879 template <class ELFT> 2880 void GNUStyle<ELFT>::printSectionHeaders(const ELFO *Obj) { 2881 unsigned Bias = ELFT::Is64Bits ? 0 : 8; 2882 ArrayRef<Elf_Shdr> Sections = unwrapOrError(Obj->sections()); 2883 OS << "There are " << to_string(Sections.size()) 2884 << " section headers, starting at offset " 2885 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n"; 2886 OS << "Section Headers:\n"; 2887 Field Fields[11] = { 2888 {"[Nr]", 2}, {"Name", 7}, {"Type", 25}, 2889 {"Address", 41}, {"Off", 58 - Bias}, {"Size", 65 - Bias}, 2890 {"ES", 72 - Bias}, {"Flg", 75 - Bias}, {"Lk", 79 - Bias}, 2891 {"Inf", 82 - Bias}, {"Al", 86 - Bias}}; 2892 for (auto &F : Fields) 2893 printField(F); 2894 OS << "\n"; 2895 2896 size_t SectionIndex = 0; 2897 for (const Elf_Shdr &Sec : Sections) { 2898 Fields[0].Str = to_string(SectionIndex); 2899 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec)); 2900 Fields[2].Str = 2901 getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type); 2902 Fields[3].Str = 2903 to_string(format_hex_no_prefix(Sec.sh_addr, ELFT::Is64Bits ? 16 : 8)); 2904 Fields[4].Str = to_string(format_hex_no_prefix(Sec.sh_offset, 6)); 2905 Fields[5].Str = to_string(format_hex_no_prefix(Sec.sh_size, 6)); 2906 Fields[6].Str = to_string(format_hex_no_prefix(Sec.sh_entsize, 2)); 2907 Fields[7].Str = getGNUFlags(Sec.sh_flags); 2908 Fields[8].Str = to_string(Sec.sh_link); 2909 Fields[9].Str = to_string(Sec.sh_info); 2910 Fields[10].Str = to_string(Sec.sh_addralign); 2911 2912 OS.PadToColumn(Fields[0].Column); 2913 OS << "[" << right_justify(Fields[0].Str, 2) << "]"; 2914 for (int i = 1; i < 7; i++) 2915 printField(Fields[i]); 2916 OS.PadToColumn(Fields[7].Column); 2917 OS << right_justify(Fields[7].Str, 3); 2918 OS.PadToColumn(Fields[8].Column); 2919 OS << right_justify(Fields[8].Str, 2); 2920 OS.PadToColumn(Fields[9].Column); 2921 OS << right_justify(Fields[9].Str, 3); 2922 OS.PadToColumn(Fields[10].Column); 2923 OS << right_justify(Fields[10].Str, 2); 2924 OS << "\n"; 2925 ++SectionIndex; 2926 } 2927 OS << "Key to Flags:\n" 2928 << " W (write), A (alloc), X (execute), M (merge), S (strings), l " 2929 "(large)\n" 2930 << " I (info), L (link order), G (group), T (TLS), E (exclude),\ 2931 x (unknown)\n" 2932 << " O (extra OS processing required) o (OS specific),\ 2933 p (processor specific)\n"; 2934 } 2935 2936 template <class ELFT> 2937 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name, 2938 size_t Entries) { 2939 if (!Name.empty()) 2940 OS << "\nSymbol table '" << Name << "' contains " << Entries 2941 << " entries:\n"; 2942 else 2943 OS << "\n Symbol table for image:\n"; 2944 2945 if (ELFT::Is64Bits) 2946 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2947 else 2948 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2949 } 2950 2951 template <class ELFT> 2952 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj, 2953 const Elf_Sym *Symbol, 2954 const Elf_Sym *FirstSym) { 2955 unsigned SectionIndex = Symbol->st_shndx; 2956 switch (SectionIndex) { 2957 case ELF::SHN_UNDEF: 2958 return "UND"; 2959 case ELF::SHN_ABS: 2960 return "ABS"; 2961 case ELF::SHN_COMMON: 2962 return "COM"; 2963 case ELF::SHN_XINDEX: 2964 return to_string( 2965 format_decimal(unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 2966 Symbol, FirstSym, this->dumper()->getShndxTable())), 2967 3)); 2968 default: 2969 // Find if: 2970 // Processor specific 2971 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC) 2972 return std::string("PRC[0x") + 2973 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2974 // OS specific 2975 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS) 2976 return std::string("OS[0x") + 2977 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2978 // Architecture reserved: 2979 if (SectionIndex >= ELF::SHN_LORESERVE && 2980 SectionIndex <= ELF::SHN_HIRESERVE) 2981 return std::string("RSV[0x") + 2982 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2983 // A normal section with an index 2984 return to_string(format_decimal(SectionIndex, 3)); 2985 } 2986 } 2987 2988 template <class ELFT> 2989 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 2990 const Elf_Sym *FirstSym, StringRef StrTable, 2991 bool IsDynamic) { 2992 static int Idx = 0; 2993 static bool Dynamic = true; 2994 2995 // If this function was called with a different value from IsDynamic 2996 // from last call, happens when we move from dynamic to static symbol 2997 // table, "Num" field should be reset. 2998 if (!Dynamic != !IsDynamic) { 2999 Idx = 0; 3000 Dynamic = false; 3001 } 3002 3003 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3004 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias, 3005 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias}; 3006 Fields[0].Str = to_string(format_decimal(Idx++, 6)) + ":"; 3007 Fields[1].Str = to_string( 3008 format_hex_no_prefix(Symbol->st_value, ELFT::Is64Bits ? 16 : 8)); 3009 Fields[2].Str = to_string(format_decimal(Symbol->st_size, 5)); 3010 3011 unsigned char SymbolType = Symbol->getType(); 3012 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3013 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3014 Fields[3].Str = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3015 else 3016 Fields[3].Str = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3017 3018 Fields[4].Str = 3019 printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3020 Fields[5].Str = 3021 printEnum(Symbol->getVisibility(), makeArrayRef(ElfSymbolVisibilities)); 3022 Fields[6].Str = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3023 Fields[7].Str = 3024 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 3025 for (auto &Entry : Fields) 3026 printField(Entry); 3027 OS << "\n"; 3028 } 3029 3030 template <class ELFT> 3031 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, 3032 uint32_t Sym, StringRef StrTable, 3033 uint32_t Bucket) { 3034 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3035 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias, 3036 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias}; 3037 Fields[0].Str = to_string(format_decimal(Sym, 5)); 3038 Fields[1].Str = to_string(format_decimal(Bucket, 3)) + ":"; 3039 3040 const auto Symbol = FirstSym + Sym; 3041 Fields[2].Str = to_string( 3042 format_hex_no_prefix(Symbol->st_value, ELFT::Is64Bits ? 18 : 8)); 3043 Fields[3].Str = to_string(format_decimal(Symbol->st_size, 5)); 3044 3045 unsigned char SymbolType = Symbol->getType(); 3046 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3047 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3048 Fields[4].Str = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3049 else 3050 Fields[4].Str = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3051 3052 Fields[5].Str = 3053 printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3054 Fields[6].Str = 3055 printEnum(Symbol->getVisibility(), makeArrayRef(ElfSymbolVisibilities)); 3056 Fields[7].Str = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3057 Fields[8].Str = this->dumper()->getFullSymbolName(Symbol, StrTable, true); 3058 3059 for (auto &Entry : Fields) 3060 printField(Entry); 3061 OS << "\n"; 3062 } 3063 3064 template <class ELFT> 3065 void GNUStyle<ELFT>::printSymbols(const ELFO *Obj, bool PrintSymbols, 3066 bool PrintDynamicSymbols) { 3067 if (!PrintSymbols && !PrintDynamicSymbols) 3068 return; 3069 // GNU readelf prints both the .dynsym and .symtab with --symbols. 3070 this->dumper()->printSymbolsHelper(true); 3071 if (PrintSymbols) 3072 this->dumper()->printSymbolsHelper(false); 3073 } 3074 3075 template <class ELFT> void GNUStyle<ELFT>::printHashSymbols(const ELFO *Obj) { 3076 if (this->dumper()->getDynamicStringTable().empty()) 3077 return; 3078 auto StringTable = this->dumper()->getDynamicStringTable(); 3079 auto DynSyms = this->dumper()->dynamic_symbols(); 3080 3081 // Try printing .hash 3082 if (auto SysVHash = this->dumper()->getHashTable()) { 3083 OS << "\n Symbol table of .hash for image:\n"; 3084 if (ELFT::Is64Bits) 3085 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3086 else 3087 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3088 OS << "\n"; 3089 3090 auto Buckets = SysVHash->buckets(); 3091 auto Chains = SysVHash->chains(); 3092 for (uint32_t Buc = 0; Buc < SysVHash->nbucket; Buc++) { 3093 if (Buckets[Buc] == ELF::STN_UNDEF) 3094 continue; 3095 for (uint32_t Ch = Buckets[Buc]; Ch < SysVHash->nchain; Ch = Chains[Ch]) { 3096 if (Ch == ELF::STN_UNDEF) 3097 break; 3098 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc); 3099 } 3100 } 3101 } 3102 3103 // Try printing .gnu.hash 3104 if (auto GnuHash = this->dumper()->getGnuHashTable()) { 3105 OS << "\n Symbol table of .gnu.hash for image:\n"; 3106 if (ELFT::Is64Bits) 3107 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3108 else 3109 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3110 OS << "\n"; 3111 auto Buckets = GnuHash->buckets(); 3112 for (uint32_t Buc = 0; Buc < GnuHash->nbuckets; Buc++) { 3113 if (Buckets[Buc] == ELF::STN_UNDEF) 3114 continue; 3115 uint32_t Index = Buckets[Buc]; 3116 uint32_t GnuHashable = Index - GnuHash->symndx; 3117 // Print whole chain 3118 while (true) { 3119 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc); 3120 // Chain ends at symbol with stopper bit 3121 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1) 3122 break; 3123 } 3124 } 3125 } 3126 } 3127 3128 static inline std::string printPhdrFlags(unsigned Flag) { 3129 std::string Str; 3130 Str = (Flag & PF_R) ? "R" : " "; 3131 Str += (Flag & PF_W) ? "W" : " "; 3132 Str += (Flag & PF_X) ? "E" : " "; 3133 return Str; 3134 } 3135 3136 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO 3137 // PT_TLS must only have SHF_TLS sections 3138 template <class ELFT> 3139 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr, 3140 const Elf_Shdr &Sec) { 3141 return (((Sec.sh_flags & ELF::SHF_TLS) && 3142 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) || 3143 (Phdr.p_type == ELF::PT_GNU_RELRO))) || 3144 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS)); 3145 } 3146 3147 // Non-SHT_NOBITS must have its offset inside the segment 3148 // Only non-zero section can be at end of segment 3149 template <class ELFT> 3150 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3151 if (Sec.sh_type == ELF::SHT_NOBITS) 3152 return true; 3153 bool IsSpecial = 3154 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3155 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3156 auto SectionSize = 3157 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3158 if (Sec.sh_offset >= Phdr.p_offset) 3159 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset) 3160 /*only non-zero sized sections at end*/ && 3161 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz)); 3162 return false; 3163 } 3164 3165 // SHF_ALLOC must have VMA inside segment 3166 // Only non-zero section can be at end of segment 3167 template <class ELFT> 3168 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3169 if (!(Sec.sh_flags & ELF::SHF_ALLOC)) 3170 return true; 3171 bool IsSpecial = 3172 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3173 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3174 auto SectionSize = 3175 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3176 if (Sec.sh_addr >= Phdr.p_vaddr) 3177 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) && 3178 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz)); 3179 return false; 3180 } 3181 3182 // No section with zero size must be at start or end of PT_DYNAMIC 3183 template <class ELFT> 3184 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3185 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0) 3186 return true; 3187 // Is section within the phdr both based on offset and VMA ? 3188 return ((Sec.sh_type == ELF::SHT_NOBITS) || 3189 (Sec.sh_offset > Phdr.p_offset && 3190 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) && 3191 (!(Sec.sh_flags & ELF::SHF_ALLOC) || 3192 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz)); 3193 } 3194 3195 template <class ELFT> 3196 void GNUStyle<ELFT>::printProgramHeaders( 3197 const ELFO *Obj, bool PrintProgramHeaders, 3198 cl::boolOrDefault PrintSectionMapping) { 3199 if (PrintProgramHeaders) 3200 printProgramHeaders(Obj); 3201 3202 // Display the section mapping along with the program headers, unless 3203 // -section-mapping is explicitly set to false. 3204 if (PrintSectionMapping != cl::BOU_FALSE) 3205 printSectionMapping(Obj); 3206 } 3207 3208 template <class ELFT> 3209 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3210 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3211 const Elf_Ehdr *Header = Obj->getHeader(); 3212 Field Fields[8] = {2, 17, 26, 37 + Bias, 3213 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias}; 3214 OS << "\nElf file type is " 3215 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n" 3216 << "Entry point " << format_hex(Header->e_entry, 3) << "\n" 3217 << "There are " << Header->e_phnum << " program headers," 3218 << " starting at offset " << Header->e_phoff << "\n\n" 3219 << "Program Headers:\n"; 3220 if (ELFT::Is64Bits) 3221 OS << " Type Offset VirtAddr PhysAddr " 3222 << " FileSiz MemSiz Flg Align\n"; 3223 else 3224 OS << " Type Offset VirtAddr PhysAddr FileSiz " 3225 << "MemSiz Flg Align\n"; 3226 3227 unsigned Width = ELFT::Is64Bits ? 18 : 10; 3228 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7; 3229 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) { 3230 Fields[0].Str = getElfPtType(Header->e_machine, Phdr.p_type); 3231 Fields[1].Str = to_string(format_hex(Phdr.p_offset, 8)); 3232 Fields[2].Str = to_string(format_hex(Phdr.p_vaddr, Width)); 3233 Fields[3].Str = to_string(format_hex(Phdr.p_paddr, Width)); 3234 Fields[4].Str = to_string(format_hex(Phdr.p_filesz, SizeWidth)); 3235 Fields[5].Str = to_string(format_hex(Phdr.p_memsz, SizeWidth)); 3236 Fields[6].Str = printPhdrFlags(Phdr.p_flags); 3237 Fields[7].Str = to_string(format_hex(Phdr.p_align, 1)); 3238 for (auto Field : Fields) 3239 printField(Field); 3240 if (Phdr.p_type == ELF::PT_INTERP) { 3241 OS << "\n [Requesting program interpreter: "; 3242 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]"; 3243 } 3244 OS << "\n"; 3245 } 3246 } 3247 3248 template <class ELFT> 3249 void GNUStyle<ELFT>::printSectionMapping(const ELFO *Obj) { 3250 OS << "\n Section to Segment mapping:\n Segment Sections...\n"; 3251 DenseSet<const Elf_Shdr *> BelongsToSegment; 3252 int Phnum = 0; 3253 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3254 std::string Sections; 3255 OS << format(" %2.2d ", Phnum++); 3256 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3257 // Check if each section is in a segment and then print mapping. 3258 // readelf additionally makes sure it does not print zero sized sections 3259 // at end of segments and for PT_DYNAMIC both start and end of section 3260 // .tbss must only be shown in PT_TLS section. 3261 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) && 3262 ((Sec.sh_flags & ELF::SHF_TLS) != 0) && 3263 Phdr.p_type != ELF::PT_TLS; 3264 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) && 3265 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) && 3266 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) { 3267 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " "; 3268 BelongsToSegment.insert(&Sec); 3269 } 3270 } 3271 OS << Sections << "\n"; 3272 OS.flush(); 3273 } 3274 3275 // Display sections that do not belong to a segment. 3276 std::string Sections; 3277 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3278 if (BelongsToSegment.find(&Sec) == BelongsToSegment.end()) 3279 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + ' '; 3280 } 3281 if (!Sections.empty()) { 3282 OS << " None " << Sections << '\n'; 3283 OS.flush(); 3284 } 3285 } 3286 3287 template <class ELFT> 3288 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R, 3289 bool IsRela) { 3290 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL()); 3291 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3292 std::string SymbolName = maybeDemangle( 3293 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()))); 3294 printRelocation(Obj, Sym, SymbolName, R, IsRela); 3295 } 3296 3297 template <class ELFT> 3298 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3299 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3300 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3301 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 3302 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3303 if (DynRelaRegion.Size > 0) { 3304 OS << "\n'RELA' relocation section at offset " 3305 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) - 3306 Obj->base(), 3307 1) << " contains " << DynRelaRegion.Size << " bytes:\n"; 3308 printRelocHeader(ELF::SHT_RELA); 3309 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3310 printDynamicRelocation(Obj, Rela, true); 3311 } 3312 if (DynRelRegion.Size > 0) { 3313 OS << "\n'REL' relocation section at offset " 3314 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) - 3315 Obj->base(), 3316 1) << " contains " << DynRelRegion.Size << " bytes:\n"; 3317 printRelocHeader(ELF::SHT_REL); 3318 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3319 Elf_Rela Rela; 3320 Rela.r_offset = Rel.r_offset; 3321 Rela.r_info = Rel.r_info; 3322 Rela.r_addend = 0; 3323 printDynamicRelocation(Obj, Rela, false); 3324 } 3325 } 3326 if (DynRelrRegion.Size > 0) { 3327 OS << "\n'RELR' relocation section at offset " 3328 << format_hex(reinterpret_cast<const uint8_t *>(DynRelrRegion.Addr) - 3329 Obj->base(), 3330 1) << " contains " << DynRelrRegion.Size << " bytes:\n"; 3331 printRelocHeader(ELF::SHT_REL); 3332 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 3333 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 3334 for (const Elf_Rela &Rela : RelrRelas) { 3335 printDynamicRelocation(Obj, Rela, false); 3336 } 3337 } 3338 if (DynPLTRelRegion.Size) { 3339 OS << "\n'PLT' relocation section at offset " 3340 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) - 3341 Obj->base(), 3342 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n"; 3343 } 3344 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) { 3345 printRelocHeader(ELF::SHT_RELA); 3346 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3347 printDynamicRelocation(Obj, Rela, true); 3348 } else { 3349 printRelocHeader(ELF::SHT_REL); 3350 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3351 Elf_Rela Rela; 3352 Rela.r_offset = Rel.r_offset; 3353 Rela.r_info = Rel.r_info; 3354 Rela.r_addend = 0; 3355 printDynamicRelocation(Obj, Rela, false); 3356 } 3357 } 3358 } 3359 3360 template <class ELFT> 3361 void GNUStyle<ELFT>::printVersionSymbolSection(const ELFFile<ELFT> *Obj, 3362 const Elf_Shdr *Sec) { 3363 if (!Sec) 3364 return; 3365 3366 StringRef SecName = unwrapOrError(Obj->getSectionName(Sec)); 3367 uint64_t Entries = Sec->sh_size / sizeof(Elf_Versym); 3368 3369 OS << "Version symbols section '" << SecName << "' " 3370 << "contains " << Entries << " entries:\n"; 3371 3372 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 3373 StringRef SymTabName = unwrapOrError(Obj->getSectionName(SymTab)); 3374 OS << " Addr: " << format_hex_no_prefix(Sec->sh_addr, 16) 3375 << " Offset: " << format_hex(Sec->sh_offset, 8) 3376 << " Link: " << Sec->sh_link << " (" << SymTabName << ")\n"; 3377 3378 const uint8_t *VersymBuf = 3379 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset); 3380 const ELFDumper<ELFT> *Dumper = this->dumper(); 3381 StringRef StrTable = Dumper->getDynamicStringTable(); 3382 3383 // readelf prints 4 entries per line. 3384 for (uint64_t VersymRow = 0; VersymRow < Entries; VersymRow += 4) { 3385 OS << " " << format_hex_no_prefix(VersymRow, 3) << ":"; 3386 3387 for (uint64_t VersymIndex = 0; 3388 (VersymIndex < 4) && (VersymIndex + VersymRow) < Entries; 3389 ++VersymIndex) { 3390 const Elf_Versym *Versym = 3391 reinterpret_cast<const Elf_Versym *>(VersymBuf); 3392 switch (Versym->vs_index) { 3393 case 0: 3394 OS << " 0 (*local*) "; 3395 break; 3396 case 1: 3397 OS << " 1 (*global*) "; 3398 break; 3399 default: 3400 OS << format("%4x%c", Versym->vs_index & VERSYM_VERSION, 3401 Versym->vs_index & VERSYM_HIDDEN ? 'h' : ' '); 3402 3403 bool IsDefault = true; 3404 std::string VersionName = Dumper->getSymbolVersionByIndex( 3405 StrTable, Versym->vs_index, IsDefault); 3406 3407 if (!VersionName.empty()) 3408 VersionName = "(" + VersionName + ")"; 3409 else 3410 VersionName = "(*invalid*)"; 3411 OS << left_justify(VersionName, 13); 3412 } 3413 VersymBuf += sizeof(Elf_Versym); 3414 } 3415 OS << '\n'; 3416 } 3417 OS << '\n'; 3418 } 3419 3420 template <class ELFT> 3421 void GNUStyle<ELFT>::printVersionDefinitionSection(const ELFFile<ELFT> *Obj, 3422 const Elf_Shdr *Sec) { 3423 if (!Sec) 3424 return; 3425 3426 StringRef SecName = unwrapOrError(Obj->getSectionName(Sec)); 3427 OS << "Dumper for " << SecName << " is not implemented\n"; 3428 } 3429 3430 template <class ELFT> 3431 void GNUStyle<ELFT>::printVersionDependencySection(const ELFFile<ELFT> *Obj, 3432 const Elf_Shdr *Sec) { 3433 if (!Sec) 3434 return; 3435 3436 StringRef SecName = unwrapOrError(Obj->getSectionName(Sec)); 3437 OS << "Dumper for " << SecName << " is not implemented\n"; 3438 } 3439 3440 // Hash histogram shows statistics of how efficient the hash was for the 3441 // dynamic symbol table. The table shows number of hash buckets for different 3442 // lengths of chains as absolute number and percentage of the total buckets. 3443 // Additionally cumulative coverage of symbols for each set of buckets. 3444 template <class ELFT> 3445 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3446 // Print histogram for .hash section 3447 if (const Elf_Hash *HashTable = this->dumper()->getHashTable()) { 3448 size_t NBucket = HashTable->nbucket; 3449 size_t NChain = HashTable->nchain; 3450 ArrayRef<Elf_Word> Buckets = HashTable->buckets(); 3451 ArrayRef<Elf_Word> Chains = HashTable->chains(); 3452 size_t TotalSyms = 0; 3453 // If hash table is correct, we have at least chains with 0 length 3454 size_t MaxChain = 1; 3455 size_t CumulativeNonZero = 0; 3456 3457 if (NChain == 0 || NBucket == 0) 3458 return; 3459 3460 std::vector<size_t> ChainLen(NBucket, 0); 3461 // Go over all buckets and and note chain lengths of each bucket (total 3462 // unique chain lengths). 3463 for (size_t B = 0; B < NBucket; B++) { 3464 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C]) 3465 if (MaxChain <= ++ChainLen[B]) 3466 MaxChain++; 3467 TotalSyms += ChainLen[B]; 3468 } 3469 3470 if (!TotalSyms) 3471 return; 3472 3473 std::vector<size_t> Count(MaxChain, 0) ; 3474 // Count how long is the chain for each bucket 3475 for (size_t B = 0; B < NBucket; B++) 3476 ++Count[ChainLen[B]]; 3477 // Print Number of buckets with each chain lengths and their cumulative 3478 // coverage of the symbols 3479 OS << "Histogram for bucket list length (total of " << NBucket 3480 << " buckets)\n" 3481 << " Length Number % of total Coverage\n"; 3482 for (size_t I = 0; I < MaxChain; I++) { 3483 CumulativeNonZero += Count[I] * I; 3484 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3485 (Count[I] * 100.0) / NBucket, 3486 (CumulativeNonZero * 100.0) / TotalSyms); 3487 } 3488 } 3489 3490 // Print histogram for .gnu.hash section 3491 if (const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable()) { 3492 size_t NBucket = GnuHashTable->nbuckets; 3493 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets(); 3494 unsigned NumSyms = this->dumper()->dynamic_symbols().size(); 3495 if (!NumSyms) 3496 return; 3497 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms); 3498 size_t Symndx = GnuHashTable->symndx; 3499 size_t TotalSyms = 0; 3500 size_t MaxChain = 1; 3501 size_t CumulativeNonZero = 0; 3502 3503 if (Chains.empty() || NBucket == 0) 3504 return; 3505 3506 std::vector<size_t> ChainLen(NBucket, 0); 3507 3508 for (size_t B = 0; B < NBucket; B++) { 3509 if (!Buckets[B]) 3510 continue; 3511 size_t Len = 1; 3512 for (size_t C = Buckets[B] - Symndx; 3513 C < Chains.size() && (Chains[C] & 1) == 0; C++) 3514 if (MaxChain < ++Len) 3515 MaxChain++; 3516 ChainLen[B] = Len; 3517 TotalSyms += Len; 3518 } 3519 MaxChain++; 3520 3521 if (!TotalSyms) 3522 return; 3523 3524 std::vector<size_t> Count(MaxChain, 0) ; 3525 for (size_t B = 0; B < NBucket; B++) 3526 ++Count[ChainLen[B]]; 3527 // Print Number of buckets with each chain lengths and their cumulative 3528 // coverage of the symbols 3529 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket 3530 << " buckets)\n" 3531 << " Length Number % of total Coverage\n"; 3532 for (size_t I = 0; I <MaxChain; I++) { 3533 CumulativeNonZero += Count[I] * I; 3534 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3535 (Count[I] * 100.0) / NBucket, 3536 (CumulativeNonZero * 100.0) / TotalSyms); 3537 } 3538 } 3539 } 3540 3541 template <class ELFT> 3542 void GNUStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 3543 OS << "GNUStyle::printCGProfile not implemented\n"; 3544 } 3545 3546 template <class ELFT> 3547 void GNUStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 3548 OS << "GNUStyle::printAddrsig not implemented\n"; 3549 } 3550 3551 static StringRef getGenericNoteTypeName(const uint32_t NT) { 3552 static const struct { 3553 uint32_t ID; 3554 const char *Name; 3555 } Notes[] = { 3556 {ELF::NT_VERSION, "NT_VERSION (version)"}, 3557 {ELF::NT_ARCH, "NT_ARCH (architecture)"}, 3558 {ELF::NT_GNU_BUILD_ATTRIBUTE_OPEN, "OPEN"}, 3559 {ELF::NT_GNU_BUILD_ATTRIBUTE_FUNC, "func"}, 3560 }; 3561 3562 for (const auto &Note : Notes) 3563 if (Note.ID == NT) 3564 return Note.Name; 3565 3566 return ""; 3567 } 3568 3569 static std::string getGNUNoteTypeName(const uint32_t NT) { 3570 static const struct { 3571 uint32_t ID; 3572 const char *Name; 3573 } Notes[] = { 3574 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"}, 3575 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"}, 3576 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"}, 3577 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"}, 3578 {ELF::NT_GNU_PROPERTY_TYPE_0, "NT_GNU_PROPERTY_TYPE_0 (property note)"}, 3579 }; 3580 3581 for (const auto &Note : Notes) 3582 if (Note.ID == NT) 3583 return std::string(Note.Name); 3584 3585 std::string string; 3586 raw_string_ostream OS(string); 3587 OS << format("Unknown note type (0x%08x)", NT); 3588 return OS.str(); 3589 } 3590 3591 static std::string getFreeBSDNoteTypeName(const uint32_t NT) { 3592 static const struct { 3593 uint32_t ID; 3594 const char *Name; 3595 } Notes[] = { 3596 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"}, 3597 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"}, 3598 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"}, 3599 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"}, 3600 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"}, 3601 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"}, 3602 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"}, 3603 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"}, 3604 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS, 3605 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"}, 3606 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"}, 3607 }; 3608 3609 for (const auto &Note : Notes) 3610 if (Note.ID == NT) 3611 return std::string(Note.Name); 3612 3613 std::string string; 3614 raw_string_ostream OS(string); 3615 OS << format("Unknown note type (0x%08x)", NT); 3616 return OS.str(); 3617 } 3618 3619 static std::string getAMDNoteTypeName(const uint32_t NT) { 3620 static const struct { 3621 uint32_t ID; 3622 const char *Name; 3623 } Notes[] = { 3624 {ELF::NT_AMD_AMDGPU_HSA_METADATA, 3625 "NT_AMD_AMDGPU_HSA_METADATA (HSA Metadata)"}, 3626 {ELF::NT_AMD_AMDGPU_ISA, 3627 "NT_AMD_AMDGPU_ISA (ISA Version)"}, 3628 {ELF::NT_AMD_AMDGPU_PAL_METADATA, 3629 "NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)"} 3630 }; 3631 3632 for (const auto &Note : Notes) 3633 if (Note.ID == NT) 3634 return std::string(Note.Name); 3635 3636 std::string string; 3637 raw_string_ostream OS(string); 3638 OS << format("Unknown note type (0x%08x)", NT); 3639 return OS.str(); 3640 } 3641 3642 static std::string getAMDGPUNoteTypeName(const uint32_t NT) { 3643 if (NT == ELF::NT_AMDGPU_METADATA) 3644 return std::string("NT_AMDGPU_METADATA (AMDGPU Metadata)"); 3645 3646 std::string string; 3647 raw_string_ostream OS(string); 3648 OS << format("Unknown note type (0x%08x)", NT); 3649 return OS.str(); 3650 } 3651 3652 template <typename ELFT> 3653 static std::string getGNUProperty(uint32_t Type, uint32_t DataSize, 3654 ArrayRef<uint8_t> Data) { 3655 std::string str; 3656 raw_string_ostream OS(str); 3657 uint32_t PrData; 3658 auto DumpBit = [&](uint32_t Flag, StringRef Name) { 3659 if (PrData & Flag) { 3660 PrData &= ~Flag; 3661 OS << Name; 3662 if (PrData) 3663 OS << ", "; 3664 } 3665 }; 3666 3667 switch (Type) { 3668 default: 3669 OS << format("<application-specific type 0x%x>", Type); 3670 return OS.str(); 3671 case GNU_PROPERTY_STACK_SIZE: { 3672 OS << "stack size: "; 3673 if (DataSize == sizeof(typename ELFT::uint)) 3674 OS << formatv("{0:x}", 3675 (uint64_t)(*(const typename ELFT::Addr *)Data.data())); 3676 else 3677 OS << format("<corrupt length: 0x%x>", DataSize); 3678 return OS.str(); 3679 } 3680 case GNU_PROPERTY_NO_COPY_ON_PROTECTED: 3681 OS << "no copy on protected"; 3682 if (DataSize) 3683 OS << format(" <corrupt length: 0x%x>", DataSize); 3684 return OS.str(); 3685 case GNU_PROPERTY_X86_FEATURE_1_AND: 3686 OS << "x86 feature: "; 3687 if (DataSize != 4) { 3688 OS << format("<corrupt length: 0x%x>", DataSize); 3689 return OS.str(); 3690 } 3691 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data()); 3692 if (PrData == 0) { 3693 OS << "<None>"; 3694 return OS.str(); 3695 } 3696 DumpBit(GNU_PROPERTY_X86_FEATURE_1_IBT, "IBT"); 3697 DumpBit(GNU_PROPERTY_X86_FEATURE_1_SHSTK, "SHSTK"); 3698 if (PrData) 3699 OS << format("<unknown flags: 0x%x>", PrData); 3700 return OS.str(); 3701 case GNU_PROPERTY_X86_ISA_1_NEEDED: 3702 case GNU_PROPERTY_X86_ISA_1_USED: 3703 OS << "x86 ISA " 3704 << (Type == GNU_PROPERTY_X86_ISA_1_NEEDED ? "needed: " : "used: "); 3705 if (DataSize != 4) { 3706 OS << format("<corrupt length: 0x%x>", DataSize); 3707 return OS.str(); 3708 } 3709 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data()); 3710 if (PrData == 0) { 3711 OS << "<None>"; 3712 return OS.str(); 3713 } 3714 DumpBit(GNU_PROPERTY_X86_ISA_1_CMOV, "CMOV"); 3715 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE, "SSE"); 3716 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE2, "SSE2"); 3717 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE3, "SSE3"); 3718 DumpBit(GNU_PROPERTY_X86_ISA_1_SSSE3, "SSSE3"); 3719 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_1, "SSE4_1"); 3720 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_2, "SSE4_2"); 3721 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX, "AVX"); 3722 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX2, "AVX2"); 3723 DumpBit(GNU_PROPERTY_X86_ISA_1_FMA, "FMA"); 3724 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512F, "AVX512F"); 3725 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512CD, "AVX512CD"); 3726 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512ER, "AVX512ER"); 3727 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512PF, "AVX512PF"); 3728 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512VL, "AVX512VL"); 3729 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512DQ, "AVX512DQ"); 3730 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512BW, "AVX512BW"); 3731 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS, "AVX512_4FMAPS"); 3732 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW, "AVX512_4VNNIW"); 3733 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_BITALG, "AVX512_BITALG"); 3734 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_IFMA, "AVX512_IFMA"); 3735 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI, "AVX512_VBMI"); 3736 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2, "AVX512_VBMI2"); 3737 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VNNI, "AVX512_VNNI"); 3738 if (PrData) 3739 OS << format("<unknown flags: 0x%x>", PrData); 3740 return OS.str(); 3741 break; 3742 case GNU_PROPERTY_X86_FEATURE_2_NEEDED: 3743 case GNU_PROPERTY_X86_FEATURE_2_USED: 3744 OS << "x86 feature " 3745 << (Type == GNU_PROPERTY_X86_FEATURE_2_NEEDED ? "needed: " : "used: "); 3746 if (DataSize != 4) { 3747 OS << format("<corrupt length: 0x%x>", DataSize); 3748 return OS.str(); 3749 } 3750 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data()); 3751 if (PrData == 0) { 3752 OS << "<None>"; 3753 return OS.str(); 3754 } 3755 DumpBit(GNU_PROPERTY_X86_FEATURE_2_X86, "x86"); 3756 DumpBit(GNU_PROPERTY_X86_FEATURE_2_X87, "x87"); 3757 DumpBit(GNU_PROPERTY_X86_FEATURE_2_MMX, "MMX"); 3758 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XMM, "XMM"); 3759 DumpBit(GNU_PROPERTY_X86_FEATURE_2_YMM, "YMM"); 3760 DumpBit(GNU_PROPERTY_X86_FEATURE_2_ZMM, "ZMM"); 3761 DumpBit(GNU_PROPERTY_X86_FEATURE_2_FXSR, "FXSR"); 3762 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVE, "XSAVE"); 3763 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT, "XSAVEOPT"); 3764 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVEC, "XSAVEC"); 3765 if (PrData) 3766 OS << format("<unknown flags: 0x%x>", PrData); 3767 return OS.str(); 3768 } 3769 } 3770 3771 template <typename ELFT> 3772 static SmallVector<std::string, 4> 3773 getGNUPropertyList(ArrayRef<uint8_t> Arr) { 3774 using Elf_Word = typename ELFT::Word; 3775 3776 SmallVector<std::string, 4> Properties; 3777 while (Arr.size() >= 8) { 3778 uint32_t Type = *reinterpret_cast<const Elf_Word *>(Arr.data()); 3779 uint32_t DataSize = *reinterpret_cast<const Elf_Word *>(Arr.data() + 4); 3780 Arr = Arr.drop_front(8); 3781 3782 // Take padding size into account if present. 3783 uint64_t PaddedSize = alignTo(DataSize, sizeof(typename ELFT::uint)); 3784 std::string str; 3785 raw_string_ostream OS(str); 3786 if (Arr.size() < PaddedSize) { 3787 OS << format("<corrupt type (0x%x) datasz: 0x%x>", Type, DataSize); 3788 Properties.push_back(OS.str()); 3789 break; 3790 } 3791 Properties.push_back( 3792 getGNUProperty<ELFT>(Type, DataSize, Arr.take_front(PaddedSize))); 3793 Arr = Arr.drop_front(PaddedSize); 3794 } 3795 3796 if (!Arr.empty()) 3797 Properties.push_back("<corrupted GNU_PROPERTY_TYPE_0>"); 3798 3799 return Properties; 3800 } 3801 3802 struct GNUAbiTag { 3803 std::string OSName; 3804 std::string ABI; 3805 bool IsValid; 3806 }; 3807 3808 template <typename ELFT> 3809 static GNUAbiTag getGNUAbiTag(ArrayRef<uint8_t> Desc) { 3810 typedef typename ELFT::Word Elf_Word; 3811 3812 ArrayRef<Elf_Word> Words(reinterpret_cast<const Elf_Word*>(Desc.begin()), 3813 reinterpret_cast<const Elf_Word*>(Desc.end())); 3814 3815 if (Words.size() < 4) 3816 return {"", "", /*IsValid=*/false}; 3817 3818 static const char *OSNames[] = { 3819 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl", 3820 }; 3821 StringRef OSName = "Unknown"; 3822 if (Words[0] < array_lengthof(OSNames)) 3823 OSName = OSNames[Words[0]]; 3824 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3]; 3825 std::string str; 3826 raw_string_ostream ABI(str); 3827 ABI << Major << "." << Minor << "." << Patch; 3828 return {OSName, ABI.str(), /*IsValid=*/true}; 3829 } 3830 3831 static std::string getGNUBuildId(ArrayRef<uint8_t> Desc) { 3832 std::string str; 3833 raw_string_ostream OS(str); 3834 for (const auto &B : Desc) 3835 OS << format_hex_no_prefix(B, 2); 3836 return OS.str(); 3837 } 3838 3839 static StringRef getGNUGoldVersion(ArrayRef<uint8_t> Desc) { 3840 return StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size()); 3841 } 3842 3843 template <typename ELFT> 3844 static void printGNUNote(raw_ostream &OS, uint32_t NoteType, 3845 ArrayRef<uint8_t> Desc) { 3846 switch (NoteType) { 3847 default: 3848 return; 3849 case ELF::NT_GNU_ABI_TAG: { 3850 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc); 3851 if (!AbiTag.IsValid) 3852 OS << " <corrupt GNU_ABI_TAG>"; 3853 else 3854 OS << " OS: " << AbiTag.OSName << ", ABI: " << AbiTag.ABI; 3855 break; 3856 } 3857 case ELF::NT_GNU_BUILD_ID: { 3858 OS << " Build ID: " << getGNUBuildId(Desc); 3859 break; 3860 } 3861 case ELF::NT_GNU_GOLD_VERSION: 3862 OS << " Version: " << getGNUGoldVersion(Desc); 3863 break; 3864 case ELF::NT_GNU_PROPERTY_TYPE_0: 3865 OS << " Properties:"; 3866 for (const auto &Property : getGNUPropertyList<ELFT>(Desc)) 3867 OS << " " << Property << "\n"; 3868 break; 3869 } 3870 OS << '\n'; 3871 } 3872 3873 struct AMDNote { 3874 std::string Type; 3875 std::string Value; 3876 }; 3877 3878 template <typename ELFT> 3879 static AMDNote getAMDNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) { 3880 switch (NoteType) { 3881 default: 3882 return {"", ""}; 3883 case ELF::NT_AMD_AMDGPU_HSA_METADATA: 3884 return {"HSA Metadata", 3885 std::string(reinterpret_cast<const char *>(Desc.data()), 3886 Desc.size())}; 3887 case ELF::NT_AMD_AMDGPU_ISA: 3888 return {"ISA Version", 3889 std::string(reinterpret_cast<const char *>(Desc.data()), 3890 Desc.size())}; 3891 } 3892 } 3893 3894 struct AMDGPUNote { 3895 std::string Type; 3896 std::string Value; 3897 }; 3898 3899 template <typename ELFT> 3900 static AMDGPUNote getAMDGPUNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) { 3901 switch (NoteType) { 3902 default: 3903 return {"", ""}; 3904 case ELF::NT_AMDGPU_METADATA: { 3905 auto MsgPackString = 3906 StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size()); 3907 msgpack::Document MsgPackDoc; 3908 if (!MsgPackDoc.readFromBlob(MsgPackString, /*Multi=*/false)) 3909 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; 3910 3911 AMDGPU::HSAMD::V3::MetadataVerifier Verifier(true); 3912 if (!Verifier.verify(MsgPackDoc.getRoot())) 3913 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; 3914 3915 std::string HSAMetadataString; 3916 raw_string_ostream StrOS(HSAMetadataString); 3917 MsgPackDoc.toYAML(StrOS); 3918 3919 return {"AMDGPU Metadata", StrOS.str()}; 3920 } 3921 } 3922 } 3923 3924 template <class ELFT> 3925 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3926 auto PrintHeader = [&](const typename ELFT::Off Offset, 3927 const typename ELFT::Addr Size) { 3928 OS << "Displaying notes found at file offset " << format_hex(Offset, 10) 3929 << " with length " << format_hex(Size, 10) << ":\n" 3930 << " Owner Data size\tDescription\n"; 3931 }; 3932 3933 auto ProcessNote = [&](const Elf_Note &Note) { 3934 StringRef Name = Note.getName(); 3935 ArrayRef<uint8_t> Descriptor = Note.getDesc(); 3936 Elf_Word Type = Note.getType(); 3937 3938 OS << " " << Name << std::string(22 - Name.size(), ' ') 3939 << format_hex(Descriptor.size(), 10) << '\t'; 3940 3941 if (Name == "GNU") { 3942 OS << getGNUNoteTypeName(Type) << '\n'; 3943 printGNUNote<ELFT>(OS, Type, Descriptor); 3944 } else if (Name == "FreeBSD") { 3945 OS << getFreeBSDNoteTypeName(Type) << '\n'; 3946 } else if (Name == "AMD") { 3947 OS << getAMDNoteTypeName(Type) << '\n'; 3948 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor); 3949 if (!N.Type.empty()) 3950 OS << " " << N.Type << ":\n " << N.Value << '\n'; 3951 } else if (Name == "AMDGPU") { 3952 OS << getAMDGPUNoteTypeName(Type) << '\n'; 3953 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor); 3954 if (!N.Type.empty()) 3955 OS << " " << N.Type << ":\n " << N.Value << '\n'; 3956 } else { 3957 StringRef NoteType = getGenericNoteTypeName(Type); 3958 if (!NoteType.empty()) 3959 OS << NoteType; 3960 else 3961 OS << "Unknown note type: (" << format_hex(Type, 10) << ')'; 3962 } 3963 OS << '\n'; 3964 }; 3965 3966 if (Obj->getHeader()->e_type == ELF::ET_CORE) { 3967 for (const auto &P : unwrapOrError(Obj->program_headers())) { 3968 if (P.p_type != PT_NOTE) 3969 continue; 3970 PrintHeader(P.p_offset, P.p_filesz); 3971 Error Err = Error::success(); 3972 for (const auto &Note : Obj->notes(P, Err)) 3973 ProcessNote(Note); 3974 if (Err) 3975 error(std::move(Err)); 3976 } 3977 } else { 3978 for (const auto &S : unwrapOrError(Obj->sections())) { 3979 if (S.sh_type != SHT_NOTE) 3980 continue; 3981 PrintHeader(S.sh_offset, S.sh_size); 3982 Error Err = Error::success(); 3983 for (const auto &Note : Obj->notes(S, Err)) 3984 ProcessNote(Note); 3985 if (Err) 3986 error(std::move(Err)); 3987 } 3988 } 3989 } 3990 3991 template <class ELFT> 3992 void GNUStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 3993 OS << "printELFLinkerOptions not implemented!\n"; 3994 } 3995 3996 template <class ELFT> 3997 void GNUStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 3998 size_t Bias = ELFT::Is64Bits ? 8 : 0; 3999 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 4000 OS.PadToColumn(2); 4001 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 4002 OS.PadToColumn(11 + Bias); 4003 OS << format_decimal(Parser.getGotOffset(E), 6) << "(gp)"; 4004 OS.PadToColumn(22 + Bias); 4005 OS << format_hex_no_prefix(*E, 8 + Bias); 4006 OS.PadToColumn(31 + 2 * Bias); 4007 OS << Purpose << "\n"; 4008 }; 4009 4010 OS << (Parser.IsStatic ? "Static GOT:\n" : "Primary GOT:\n"); 4011 OS << " Canonical gp value: " 4012 << format_hex_no_prefix(Parser.getGp(), 8 + Bias) << "\n\n"; 4013 4014 OS << " Reserved entries:\n"; 4015 OS << " Address Access Initial Purpose\n"; 4016 PrintEntry(Parser.getGotLazyResolver(), "Lazy resolver"); 4017 if (Parser.getGotModulePointer()) 4018 PrintEntry(Parser.getGotModulePointer(), "Module pointer (GNU extension)"); 4019 4020 if (!Parser.getLocalEntries().empty()) { 4021 OS << "\n"; 4022 OS << " Local entries:\n"; 4023 OS << " Address Access Initial\n"; 4024 for (auto &E : Parser.getLocalEntries()) 4025 PrintEntry(&E, ""); 4026 } 4027 4028 if (Parser.IsStatic) 4029 return; 4030 4031 if (!Parser.getGlobalEntries().empty()) { 4032 OS << "\n"; 4033 OS << " Global entries:\n"; 4034 OS << " Address Access Initial Sym.Val. Type Ndx Name\n"; 4035 for (auto &E : Parser.getGlobalEntries()) { 4036 const Elf_Sym *Sym = Parser.getGotSym(&E); 4037 std::string SymName = this->dumper()->getFullSymbolName( 4038 Sym, this->dumper()->getDynamicStringTable(), false); 4039 4040 OS.PadToColumn(2); 4041 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 4042 OS.PadToColumn(11 + Bias); 4043 OS << to_string(format_decimal(Parser.getGotOffset(&E), 6)) + "(gp)"; 4044 OS.PadToColumn(22 + Bias); 4045 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 4046 OS.PadToColumn(31 + 2 * Bias); 4047 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 4048 OS.PadToColumn(40 + 3 * Bias); 4049 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4050 OS.PadToColumn(48 + 3 * Bias); 4051 OS << getSymbolSectionNdx(Parser.Obj, Sym, 4052 this->dumper()->dynamic_symbols().begin()); 4053 OS.PadToColumn(52 + 3 * Bias); 4054 OS << SymName << "\n"; 4055 } 4056 } 4057 4058 if (!Parser.getOtherEntries().empty()) 4059 OS << "\n Number of TLS and multi-GOT entries " 4060 << Parser.getOtherEntries().size() << "\n"; 4061 } 4062 4063 template <class ELFT> 4064 void GNUStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 4065 size_t Bias = ELFT::Is64Bits ? 8 : 0; 4066 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 4067 OS.PadToColumn(2); 4068 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 4069 OS.PadToColumn(11 + Bias); 4070 OS << format_hex_no_prefix(*E, 8 + Bias); 4071 OS.PadToColumn(20 + 2 * Bias); 4072 OS << Purpose << "\n"; 4073 }; 4074 4075 OS << "PLT GOT:\n\n"; 4076 4077 OS << " Reserved entries:\n"; 4078 OS << " Address Initial Purpose\n"; 4079 PrintEntry(Parser.getPltLazyResolver(), "PLT lazy resolver"); 4080 if (Parser.getPltModulePointer()) 4081 PrintEntry(Parser.getGotModulePointer(), "Module pointer"); 4082 4083 if (!Parser.getPltEntries().empty()) { 4084 OS << "\n"; 4085 OS << " Entries:\n"; 4086 OS << " Address Initial Sym.Val. Type Ndx Name\n"; 4087 for (auto &E : Parser.getPltEntries()) { 4088 const Elf_Sym *Sym = Parser.getPltSym(&E); 4089 std::string SymName = this->dumper()->getFullSymbolName( 4090 Sym, this->dumper()->getDynamicStringTable(), false); 4091 4092 OS.PadToColumn(2); 4093 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 4094 OS.PadToColumn(11 + Bias); 4095 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 4096 OS.PadToColumn(20 + 2 * Bias); 4097 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 4098 OS.PadToColumn(29 + 3 * Bias); 4099 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4100 OS.PadToColumn(37 + 3 * Bias); 4101 OS << getSymbolSectionNdx(Parser.Obj, Sym, 4102 this->dumper()->dynamic_symbols().begin()); 4103 OS.PadToColumn(41 + 3 * Bias); 4104 OS << SymName << "\n"; 4105 } 4106 } 4107 } 4108 4109 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 4110 const Elf_Ehdr *E = Obj->getHeader(); 4111 { 4112 DictScope D(W, "ElfHeader"); 4113 { 4114 DictScope D(W, "Ident"); 4115 W.printBinary("Magic", makeArrayRef(E->e_ident).slice(ELF::EI_MAG0, 4)); 4116 W.printEnum("Class", E->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 4117 W.printEnum("DataEncoding", E->e_ident[ELF::EI_DATA], 4118 makeArrayRef(ElfDataEncoding)); 4119 W.printNumber("FileVersion", E->e_ident[ELF::EI_VERSION]); 4120 4121 auto OSABI = makeArrayRef(ElfOSABI); 4122 if (E->e_ident[ELF::EI_OSABI] >= ELF::ELFOSABI_FIRST_ARCH && 4123 E->e_ident[ELF::EI_OSABI] <= ELF::ELFOSABI_LAST_ARCH) { 4124 switch (E->e_machine) { 4125 case ELF::EM_AMDGPU: 4126 OSABI = makeArrayRef(AMDGPUElfOSABI); 4127 break; 4128 case ELF::EM_ARM: 4129 OSABI = makeArrayRef(ARMElfOSABI); 4130 break; 4131 case ELF::EM_TI_C6000: 4132 OSABI = makeArrayRef(C6000ElfOSABI); 4133 break; 4134 } 4135 } 4136 W.printEnum("OS/ABI", E->e_ident[ELF::EI_OSABI], OSABI); 4137 W.printNumber("ABIVersion", E->e_ident[ELF::EI_ABIVERSION]); 4138 W.printBinary("Unused", makeArrayRef(E->e_ident).slice(ELF::EI_PAD)); 4139 } 4140 4141 W.printEnum("Type", E->e_type, makeArrayRef(ElfObjectFileType)); 4142 W.printEnum("Machine", E->e_machine, makeArrayRef(ElfMachineType)); 4143 W.printNumber("Version", E->e_version); 4144 W.printHex("Entry", E->e_entry); 4145 W.printHex("ProgramHeaderOffset", E->e_phoff); 4146 W.printHex("SectionHeaderOffset", E->e_shoff); 4147 if (E->e_machine == EM_MIPS) 4148 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderMipsFlags), 4149 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 4150 unsigned(ELF::EF_MIPS_MACH)); 4151 else if (E->e_machine == EM_AMDGPU) 4152 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderAMDGPUFlags), 4153 unsigned(ELF::EF_AMDGPU_MACH)); 4154 else if (E->e_machine == EM_RISCV) 4155 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); 4156 else 4157 W.printFlags("Flags", E->e_flags); 4158 W.printNumber("HeaderSize", E->e_ehsize); 4159 W.printNumber("ProgramHeaderEntrySize", E->e_phentsize); 4160 W.printNumber("ProgramHeaderCount", E->e_phnum); 4161 W.printNumber("SectionHeaderEntrySize", E->e_shentsize); 4162 W.printString("SectionHeaderCount", getSectionHeadersNumString(Obj)); 4163 W.printString("StringTableSectionIndex", getSectionHeaderTableIndexString(Obj)); 4164 } 4165 } 4166 4167 template <class ELFT> 4168 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) { 4169 DictScope Lists(W, "Groups"); 4170 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 4171 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 4172 for (const GroupSection &G : V) { 4173 DictScope D(W, "Group"); 4174 W.printNumber("Name", G.Name, G.ShName); 4175 W.printNumber("Index", G.Index); 4176 W.printNumber("Link", G.Link); 4177 W.printNumber("Info", G.Info); 4178 W.printHex("Type", getGroupType(G.Type), G.Type); 4179 W.startLine() << "Signature: " << G.Signature << "\n"; 4180 4181 ListScope L(W, "Section(s) in group"); 4182 for (const GroupMember &GM : G.Members) { 4183 const GroupSection *MainGroup = Map[GM.Index]; 4184 if (MainGroup != &G) { 4185 W.flush(); 4186 errs() << "Error: " << GM.Name << " (" << GM.Index 4187 << ") in a group " + G.Name + " (" << G.Index 4188 << ") is already in a group " + MainGroup->Name + " (" 4189 << MainGroup->Index << ")\n"; 4190 errs().flush(); 4191 continue; 4192 } 4193 W.startLine() << GM.Name << " (" << GM.Index << ")\n"; 4194 } 4195 } 4196 4197 if (V.empty()) 4198 W.startLine() << "There are no group sections in the file.\n"; 4199 } 4200 4201 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) { 4202 ListScope D(W, "Relocations"); 4203 4204 int SectionNumber = -1; 4205 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4206 ++SectionNumber; 4207 4208 if (Sec.sh_type != ELF::SHT_REL && 4209 Sec.sh_type != ELF::SHT_RELA && 4210 Sec.sh_type != ELF::SHT_RELR && 4211 Sec.sh_type != ELF::SHT_ANDROID_REL && 4212 Sec.sh_type != ELF::SHT_ANDROID_RELA && 4213 Sec.sh_type != ELF::SHT_ANDROID_RELR) 4214 continue; 4215 4216 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4217 4218 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; 4219 W.indent(); 4220 4221 printRelocations(&Sec, Obj); 4222 4223 W.unindent(); 4224 W.startLine() << "}\n"; 4225 } 4226 } 4227 4228 template <class ELFT> 4229 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) { 4230 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 4231 4232 switch (Sec->sh_type) { 4233 case ELF::SHT_REL: 4234 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) { 4235 Elf_Rela Rela; 4236 Rela.r_offset = R.r_offset; 4237 Rela.r_info = R.r_info; 4238 Rela.r_addend = 0; 4239 printRelocation(Obj, Rela, SymTab); 4240 } 4241 break; 4242 case ELF::SHT_RELA: 4243 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec))) 4244 printRelocation(Obj, R, SymTab); 4245 break; 4246 case ELF::SHT_RELR: 4247 case ELF::SHT_ANDROID_RELR: { 4248 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(Sec)); 4249 if (opts::RawRelr) { 4250 for (const Elf_Relr &R : Relrs) 4251 W.startLine() << W.hex(R) << "\n"; 4252 } else { 4253 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4254 for (const Elf_Rela &R : RelrRelas) 4255 printRelocation(Obj, R, SymTab); 4256 } 4257 break; 4258 } 4259 case ELF::SHT_ANDROID_REL: 4260 case ELF::SHT_ANDROID_RELA: 4261 for (const Elf_Rela &R : unwrapOrError(Obj->android_relas(Sec))) 4262 printRelocation(Obj, R, SymTab); 4263 break; 4264 } 4265 } 4266 4267 template <class ELFT> 4268 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel, 4269 const Elf_Shdr *SymTab) { 4270 SmallString<32> RelocName; 4271 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4272 std::string TargetName; 4273 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab)); 4274 if (Sym && Sym->getType() == ELF::STT_SECTION) { 4275 const Elf_Shdr *Sec = unwrapOrError( 4276 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 4277 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 4278 } else if (Sym) { 4279 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 4280 TargetName = this->dumper()->getFullSymbolName( 4281 Sym, StrTable, SymTab->sh_type == SHT_DYNSYM /* IsDynamic */); 4282 } 4283 4284 if (opts::ExpandRelocs) { 4285 DictScope Group(W, "Relocation"); 4286 W.printHex("Offset", Rel.r_offset); 4287 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4288 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-", 4289 Rel.getSymbol(Obj->isMips64EL())); 4290 W.printHex("Addend", Rel.r_addend); 4291 } else { 4292 raw_ostream &OS = W.startLine(); 4293 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4294 << (!TargetName.empty() ? TargetName : "-") << " " 4295 << W.hex(Rel.r_addend) << "\n"; 4296 } 4297 } 4298 4299 template <class ELFT> 4300 void LLVMStyle<ELFT>::printSectionHeaders(const ELFO *Obj) { 4301 ListScope SectionsD(W, "Sections"); 4302 4303 int SectionIndex = -1; 4304 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4305 ++SectionIndex; 4306 4307 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4308 4309 DictScope SectionD(W, "Section"); 4310 W.printNumber("Index", SectionIndex); 4311 W.printNumber("Name", Name, Sec.sh_name); 4312 W.printHex( 4313 "Type", 4314 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type), 4315 Sec.sh_type); 4316 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags), 4317 std::end(ElfSectionFlags)); 4318 switch (Obj->getHeader()->e_machine) { 4319 case EM_ARM: 4320 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags), 4321 std::end(ElfARMSectionFlags)); 4322 break; 4323 case EM_HEXAGON: 4324 SectionFlags.insert(SectionFlags.end(), 4325 std::begin(ElfHexagonSectionFlags), 4326 std::end(ElfHexagonSectionFlags)); 4327 break; 4328 case EM_MIPS: 4329 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags), 4330 std::end(ElfMipsSectionFlags)); 4331 break; 4332 case EM_X86_64: 4333 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags), 4334 std::end(ElfX86_64SectionFlags)); 4335 break; 4336 case EM_XCORE: 4337 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags), 4338 std::end(ElfXCoreSectionFlags)); 4339 break; 4340 default: 4341 // Nothing to do. 4342 break; 4343 } 4344 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags)); 4345 W.printHex("Address", Sec.sh_addr); 4346 W.printHex("Offset", Sec.sh_offset); 4347 W.printNumber("Size", Sec.sh_size); 4348 W.printNumber("Link", Sec.sh_link); 4349 W.printNumber("Info", Sec.sh_info); 4350 W.printNumber("AddressAlignment", Sec.sh_addralign); 4351 W.printNumber("EntrySize", Sec.sh_entsize); 4352 4353 if (opts::SectionRelocations) { 4354 ListScope D(W, "Relocations"); 4355 printRelocations(&Sec, Obj); 4356 } 4357 4358 if (opts::SectionSymbols) { 4359 ListScope D(W, "Symbols"); 4360 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec(); 4361 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 4362 4363 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) { 4364 const Elf_Shdr *SymSec = unwrapOrError( 4365 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable())); 4366 if (SymSec == &Sec) 4367 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(), 4368 StrTable, false); 4369 } 4370 } 4371 4372 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) { 4373 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec)); 4374 W.printBinaryBlock( 4375 "SectionData", 4376 StringRef(reinterpret_cast<const char *>(Data.data()), Data.size())); 4377 } 4378 } 4379 } 4380 4381 template <class ELFT> 4382 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 4383 const Elf_Sym *First, StringRef StrTable, 4384 bool IsDynamic) { 4385 unsigned SectionIndex = 0; 4386 StringRef SectionName; 4387 this->dumper()->getSectionNameIndex(Symbol, First, SectionName, SectionIndex); 4388 std::string FullSymbolName = 4389 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 4390 unsigned char SymbolType = Symbol->getType(); 4391 4392 DictScope D(W, "Symbol"); 4393 W.printNumber("Name", FullSymbolName, Symbol->st_name); 4394 W.printHex("Value", Symbol->st_value); 4395 W.printNumber("Size", Symbol->st_size); 4396 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 4397 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 4398 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 4399 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 4400 else 4401 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes)); 4402 if (Symbol->st_other == 0) 4403 // Usually st_other flag is zero. Do not pollute the output 4404 // by flags enumeration in that case. 4405 W.printNumber("Other", 0); 4406 else { 4407 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags), 4408 std::end(ElfSymOtherFlags)); 4409 if (Obj->getHeader()->e_machine == EM_MIPS) { 4410 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16 4411 // flag overlapped with other ST_MIPS_xxx flags. So consider both 4412 // cases separately. 4413 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16) 4414 SymOtherFlags.insert(SymOtherFlags.end(), 4415 std::begin(ElfMips16SymOtherFlags), 4416 std::end(ElfMips16SymOtherFlags)); 4417 else 4418 SymOtherFlags.insert(SymOtherFlags.end(), 4419 std::begin(ElfMipsSymOtherFlags), 4420 std::end(ElfMipsSymOtherFlags)); 4421 } 4422 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u); 4423 } 4424 W.printHex("Section", SectionName, SectionIndex); 4425 } 4426 4427 template <class ELFT> 4428 void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj, bool PrintSymbols, 4429 bool PrintDynamicSymbols) { 4430 if (PrintSymbols) 4431 printSymbols(Obj); 4432 if (PrintDynamicSymbols) 4433 printDynamicSymbols(Obj); 4434 } 4435 4436 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) { 4437 ListScope Group(W, "Symbols"); 4438 this->dumper()->printSymbolsHelper(false); 4439 } 4440 4441 template <class ELFT> 4442 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 4443 ListScope Group(W, "DynamicSymbols"); 4444 this->dumper()->printSymbolsHelper(true); 4445 } 4446 4447 template <class ELFT> 4448 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 4449 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 4450 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 4451 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 4452 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 4453 if (DynRelRegion.Size && DynRelaRegion.Size) 4454 report_fatal_error("There are both REL and RELA dynamic relocations"); 4455 W.startLine() << "Dynamic Relocations {\n"; 4456 W.indent(); 4457 if (DynRelaRegion.Size > 0) 4458 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 4459 printDynamicRelocation(Obj, Rela); 4460 else 4461 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 4462 Elf_Rela Rela; 4463 Rela.r_offset = Rel.r_offset; 4464 Rela.r_info = Rel.r_info; 4465 Rela.r_addend = 0; 4466 printDynamicRelocation(Obj, Rela); 4467 } 4468 if (DynRelrRegion.Size > 0) { 4469 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 4470 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4471 for (const Elf_Rela &Rela : RelrRelas) 4472 printDynamicRelocation(Obj, Rela); 4473 } 4474 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) 4475 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 4476 printDynamicRelocation(Obj, Rela); 4477 else 4478 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 4479 Elf_Rela Rela; 4480 Rela.r_offset = Rel.r_offset; 4481 Rela.r_info = Rel.r_info; 4482 Rela.r_addend = 0; 4483 printDynamicRelocation(Obj, Rela); 4484 } 4485 W.unindent(); 4486 W.startLine() << "}\n"; 4487 } 4488 4489 template <class ELFT> 4490 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) { 4491 SmallString<32> RelocName; 4492 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4493 std::string SymbolName; 4494 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL()); 4495 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 4496 SymbolName = maybeDemangle( 4497 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()))); 4498 if (opts::ExpandRelocs) { 4499 DictScope Group(W, "Relocation"); 4500 W.printHex("Offset", Rel.r_offset); 4501 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4502 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-"); 4503 W.printHex("Addend", Rel.r_addend); 4504 } else { 4505 raw_ostream &OS = W.startLine(); 4506 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4507 << (!SymbolName.empty() ? SymbolName : "-") << " " 4508 << W.hex(Rel.r_addend) << "\n"; 4509 } 4510 } 4511 4512 template <class ELFT> 4513 void LLVMStyle<ELFT>::printProgramHeaders( 4514 const ELFO *Obj, bool PrintProgramHeaders, 4515 cl::boolOrDefault PrintSectionMapping) { 4516 if (PrintProgramHeaders) 4517 printProgramHeaders(Obj); 4518 if (PrintSectionMapping == cl::BOU_TRUE) 4519 printSectionMapping(Obj); 4520 } 4521 4522 template <class ELFT> 4523 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 4524 ListScope L(W, "ProgramHeaders"); 4525 4526 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 4527 DictScope P(W, "ProgramHeader"); 4528 W.printHex("Type", 4529 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type), 4530 Phdr.p_type); 4531 W.printHex("Offset", Phdr.p_offset); 4532 W.printHex("VirtualAddress", Phdr.p_vaddr); 4533 W.printHex("PhysicalAddress", Phdr.p_paddr); 4534 W.printNumber("FileSize", Phdr.p_filesz); 4535 W.printNumber("MemSize", Phdr.p_memsz); 4536 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags)); 4537 W.printNumber("Alignment", Phdr.p_align); 4538 } 4539 } 4540 4541 template <class ELFT> 4542 void LLVMStyle<ELFT>::printVersionSymbolSection(const ELFFile<ELFT> *Obj, 4543 const Elf_Shdr *Sec) { 4544 DictScope SS(W, "Version symbols"); 4545 if (!Sec) 4546 return; 4547 4548 StringRef SecName = unwrapOrError(Obj->getSectionName(Sec)); 4549 W.printNumber("Section Name", SecName, Sec->sh_name); 4550 W.printHex("Address", Sec->sh_addr); 4551 W.printHex("Offset", Sec->sh_offset); 4552 W.printNumber("Link", Sec->sh_link); 4553 4554 const uint8_t *VersymBuf = 4555 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset); 4556 const ELFDumper<ELFT> *Dumper = this->dumper(); 4557 StringRef StrTable = Dumper->getDynamicStringTable(); 4558 4559 // Same number of entries in the dynamic symbol table (DT_SYMTAB). 4560 ListScope Syms(W, "Symbols"); 4561 for (const Elf_Sym &Sym : Dumper->dynamic_symbols()) { 4562 DictScope S(W, "Symbol"); 4563 const Elf_Versym *Versym = reinterpret_cast<const Elf_Versym *>(VersymBuf); 4564 std::string FullSymbolName = 4565 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */); 4566 W.printNumber("Version", Versym->vs_index & VERSYM_VERSION); 4567 W.printString("Name", FullSymbolName); 4568 VersymBuf += sizeof(Elf_Versym); 4569 } 4570 } 4571 4572 template <class ELFT> 4573 void LLVMStyle<ELFT>::printVersionDefinitionSection(const ELFFile<ELFT> *Obj, 4574 const Elf_Shdr *Sec) { 4575 DictScope SD(W, "SHT_GNU_verdef"); 4576 if (!Sec) 4577 return; 4578 4579 const uint8_t *SecStartAddress = 4580 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset); 4581 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size; 4582 const uint8_t *VerdefBuf = SecStartAddress; 4583 const Elf_Shdr *StrTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 4584 4585 unsigned VerDefsNum = Sec->sh_info; 4586 while (VerDefsNum--) { 4587 if (VerdefBuf + sizeof(Elf_Verdef) > SecEndAddress) 4588 // FIXME: report_fatal_error is not a good way to report error. We should 4589 // emit a parsing error here and below. 4590 report_fatal_error("invalid offset in the section"); 4591 4592 const Elf_Verdef *Verdef = reinterpret_cast<const Elf_Verdef *>(VerdefBuf); 4593 DictScope Def(W, "Definition"); 4594 W.printNumber("Version", Verdef->vd_version); 4595 W.printEnum("Flags", Verdef->vd_flags, makeArrayRef(SymVersionFlags)); 4596 W.printNumber("Index", Verdef->vd_ndx); 4597 W.printNumber("Hash", Verdef->vd_hash); 4598 W.printString("Name", StringRef(reinterpret_cast<const char *>( 4599 Obj->base() + StrTab->sh_offset + 4600 Verdef->getAux()->vda_name))); 4601 if (!Verdef->vd_cnt) 4602 report_fatal_error("at least one definition string must exist"); 4603 if (Verdef->vd_cnt > 2) 4604 report_fatal_error("more than one predecessor is not expected"); 4605 4606 if (Verdef->vd_cnt == 2) { 4607 const uint8_t *VerdauxBuf = 4608 VerdefBuf + Verdef->vd_aux + Verdef->getAux()->vda_next; 4609 const Elf_Verdaux *Verdaux = 4610 reinterpret_cast<const Elf_Verdaux *>(VerdauxBuf); 4611 W.printString("Predecessor", 4612 StringRef(reinterpret_cast<const char *>( 4613 Obj->base() + StrTab->sh_offset + Verdaux->vda_name))); 4614 } 4615 VerdefBuf += Verdef->vd_next; 4616 } 4617 } 4618 4619 template <class ELFT> 4620 void LLVMStyle<ELFT>::printVersionDependencySection(const ELFFile<ELFT> *Obj, 4621 const Elf_Shdr *Sec) { 4622 DictScope SD(W, "SHT_GNU_verneed"); 4623 if (!Sec) 4624 return; 4625 4626 const uint8_t *SecData = 4627 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset); 4628 const Elf_Shdr *StrTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 4629 4630 const uint8_t *VerneedBuf = SecData; 4631 unsigned VerneedNum = Sec->sh_info; 4632 for (unsigned I = 0; I < VerneedNum; ++I) { 4633 const Elf_Verneed *Verneed = 4634 reinterpret_cast<const Elf_Verneed *>(VerneedBuf); 4635 DictScope Entry(W, "Dependency"); 4636 W.printNumber("Version", Verneed->vn_version); 4637 W.printNumber("Count", Verneed->vn_cnt); 4638 W.printString("FileName", 4639 StringRef(reinterpret_cast<const char *>( 4640 Obj->base() + StrTab->sh_offset + Verneed->vn_file))); 4641 4642 const uint8_t *VernauxBuf = VerneedBuf + Verneed->vn_aux; 4643 ListScope L(W, "Entries"); 4644 for (unsigned J = 0; J < Verneed->vn_cnt; ++J) { 4645 const Elf_Vernaux *Vernaux = 4646 reinterpret_cast<const Elf_Vernaux *>(VernauxBuf); 4647 DictScope Entry(W, "Entry"); 4648 W.printNumber("Hash", Vernaux->vna_hash); 4649 W.printEnum("Flags", Vernaux->vna_flags, makeArrayRef(SymVersionFlags)); 4650 W.printNumber("Index", Vernaux->vna_other); 4651 W.printString("Name", 4652 StringRef(reinterpret_cast<const char *>( 4653 Obj->base() + StrTab->sh_offset + Vernaux->vna_name))); 4654 VernauxBuf += Vernaux->vna_next; 4655 } 4656 VerneedBuf += Verneed->vn_next; 4657 } 4658 } 4659 4660 template <class ELFT> 4661 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 4662 W.startLine() << "Hash Histogram not implemented!\n"; 4663 } 4664 4665 template <class ELFT> 4666 void LLVMStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 4667 ListScope L(W, "CGProfile"); 4668 if (!this->dumper()->getDotCGProfileSec()) 4669 return; 4670 auto CGProfile = 4671 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_CGProfile>( 4672 this->dumper()->getDotCGProfileSec())); 4673 for (const Elf_CGProfile &CGPE : CGProfile) { 4674 DictScope D(W, "CGProfileEntry"); 4675 W.printNumber("From", this->dumper()->getStaticSymbolName(CGPE.cgp_from), 4676 CGPE.cgp_from); 4677 W.printNumber("To", this->dumper()->getStaticSymbolName(CGPE.cgp_to), 4678 CGPE.cgp_to); 4679 W.printNumber("Weight", CGPE.cgp_weight); 4680 } 4681 } 4682 4683 template <class ELFT> 4684 void LLVMStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 4685 ListScope L(W, "Addrsig"); 4686 if (!this->dumper()->getDotAddrsigSec()) 4687 return; 4688 ArrayRef<uint8_t> Contents = unwrapOrError( 4689 Obj->getSectionContents(this->dumper()->getDotAddrsigSec())); 4690 const uint8_t *Cur = Contents.begin(); 4691 const uint8_t *End = Contents.end(); 4692 while (Cur != End) { 4693 unsigned Size; 4694 const char *Err; 4695 uint64_t SymIndex = decodeULEB128(Cur, &Size, End, &Err); 4696 if (Err) 4697 reportError(Err); 4698 W.printNumber("Sym", this->dumper()->getStaticSymbolName(SymIndex), 4699 SymIndex); 4700 Cur += Size; 4701 } 4702 } 4703 4704 template <typename ELFT> 4705 static void printGNUNoteLLVMStyle(uint32_t NoteType, 4706 ArrayRef<uint8_t> Desc, 4707 ScopedPrinter &W) { 4708 switch (NoteType) { 4709 default: 4710 return; 4711 case ELF::NT_GNU_ABI_TAG: { 4712 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc); 4713 if (!AbiTag.IsValid) { 4714 W.printString("ABI", "<corrupt GNU_ABI_TAG>"); 4715 } else { 4716 W.printString("OS", AbiTag.OSName); 4717 W.printString("ABI", AbiTag.ABI); 4718 } 4719 break; 4720 } 4721 case ELF::NT_GNU_BUILD_ID: { 4722 W.printString("Build ID", getGNUBuildId(Desc)); 4723 break; 4724 } 4725 case ELF::NT_GNU_GOLD_VERSION: 4726 W.printString("Version", getGNUGoldVersion(Desc)); 4727 break; 4728 case ELF::NT_GNU_PROPERTY_TYPE_0: 4729 ListScope D(W, "Property"); 4730 for (const auto &Property : getGNUPropertyList<ELFT>(Desc)) 4731 W.printString(Property); 4732 break; 4733 } 4734 } 4735 4736 template <class ELFT> 4737 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 4738 ListScope L(W, "Notes"); 4739 4740 auto PrintHeader = [&](const typename ELFT::Off Offset, 4741 const typename ELFT::Addr Size) { 4742 W.printHex("Offset", Offset); 4743 W.printHex("Size", Size); 4744 }; 4745 4746 auto ProcessNote = [&](const Elf_Note &Note) { 4747 DictScope D2(W, "Note"); 4748 StringRef Name = Note.getName(); 4749 ArrayRef<uint8_t> Descriptor = Note.getDesc(); 4750 Elf_Word Type = Note.getType(); 4751 4752 W.printString("Owner", Name); 4753 W.printHex("Data size", Descriptor.size()); 4754 if (Name == "GNU") { 4755 W.printString("Type", getGNUNoteTypeName(Type)); 4756 printGNUNoteLLVMStyle<ELFT>(Type, Descriptor, W); 4757 } else if (Name == "FreeBSD") { 4758 W.printString("Type", getFreeBSDNoteTypeName(Type)); 4759 } else if (Name == "AMD") { 4760 W.printString("Type", getAMDNoteTypeName(Type)); 4761 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor); 4762 if (!N.Type.empty()) 4763 W.printString(N.Type, N.Value); 4764 } else if (Name == "AMDGPU") { 4765 W.printString("Type", getAMDGPUNoteTypeName(Type)); 4766 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor); 4767 if (!N.Type.empty()) 4768 W.printString(N.Type, N.Value); 4769 } else { 4770 StringRef NoteType = getGenericNoteTypeName(Type); 4771 if (!NoteType.empty()) 4772 W.printString("Type", NoteType); 4773 else 4774 W.printString("Type", 4775 "Unknown (" + to_string(format_hex(Type, 10)) + ")"); 4776 } 4777 }; 4778 4779 if (Obj->getHeader()->e_type == ELF::ET_CORE) { 4780 for (const auto &P : unwrapOrError(Obj->program_headers())) { 4781 if (P.p_type != PT_NOTE) 4782 continue; 4783 DictScope D(W, "NoteSection"); 4784 PrintHeader(P.p_offset, P.p_filesz); 4785 Error Err = Error::success(); 4786 for (const auto &Note : Obj->notes(P, Err)) 4787 ProcessNote(Note); 4788 if (Err) 4789 error(std::move(Err)); 4790 } 4791 } else { 4792 for (const auto &S : unwrapOrError(Obj->sections())) { 4793 if (S.sh_type != SHT_NOTE) 4794 continue; 4795 DictScope D(W, "NoteSection"); 4796 PrintHeader(S.sh_offset, S.sh_size); 4797 Error Err = Error::success(); 4798 for (const auto &Note : Obj->notes(S, Err)) 4799 ProcessNote(Note); 4800 if (Err) 4801 error(std::move(Err)); 4802 } 4803 } 4804 } 4805 4806 template <class ELFT> 4807 void LLVMStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 4808 ListScope L(W, "LinkerOptions"); 4809 4810 for (const Elf_Shdr &Shdr : unwrapOrError(Obj->sections())) { 4811 if (Shdr.sh_type != ELF::SHT_LLVM_LINKER_OPTIONS) 4812 continue; 4813 4814 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Shdr)); 4815 for (const uint8_t *P = Contents.begin(), *E = Contents.end(); P < E; ) { 4816 StringRef Key = StringRef(reinterpret_cast<const char *>(P)); 4817 StringRef Value = 4818 StringRef(reinterpret_cast<const char *>(P) + Key.size() + 1); 4819 4820 W.printString(Key, Value); 4821 4822 P = P + Key.size() + Value.size() + 2; 4823 } 4824 } 4825 } 4826 4827 template <class ELFT> 4828 void LLVMStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 4829 auto PrintEntry = [&](const Elf_Addr *E) { 4830 W.printHex("Address", Parser.getGotAddress(E)); 4831 W.printNumber("Access", Parser.getGotOffset(E)); 4832 W.printHex("Initial", *E); 4833 }; 4834 4835 DictScope GS(W, Parser.IsStatic ? "Static GOT" : "Primary GOT"); 4836 4837 W.printHex("Canonical gp value", Parser.getGp()); 4838 { 4839 ListScope RS(W, "Reserved entries"); 4840 { 4841 DictScope D(W, "Entry"); 4842 PrintEntry(Parser.getGotLazyResolver()); 4843 W.printString("Purpose", StringRef("Lazy resolver")); 4844 } 4845 4846 if (Parser.getGotModulePointer()) { 4847 DictScope D(W, "Entry"); 4848 PrintEntry(Parser.getGotModulePointer()); 4849 W.printString("Purpose", StringRef("Module pointer (GNU extension)")); 4850 } 4851 } 4852 { 4853 ListScope LS(W, "Local entries"); 4854 for (auto &E : Parser.getLocalEntries()) { 4855 DictScope D(W, "Entry"); 4856 PrintEntry(&E); 4857 } 4858 } 4859 4860 if (Parser.IsStatic) 4861 return; 4862 4863 { 4864 ListScope GS(W, "Global entries"); 4865 for (auto &E : Parser.getGlobalEntries()) { 4866 DictScope D(W, "Entry"); 4867 4868 PrintEntry(&E); 4869 4870 const Elf_Sym *Sym = Parser.getGotSym(&E); 4871 W.printHex("Value", Sym->st_value); 4872 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4873 4874 unsigned SectionIndex = 0; 4875 StringRef SectionName; 4876 this->dumper()->getSectionNameIndex( 4877 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4878 SectionIndex); 4879 W.printHex("Section", SectionName, SectionIndex); 4880 4881 std::string SymName = this->dumper()->getFullSymbolName( 4882 Sym, this->dumper()->getDynamicStringTable(), true); 4883 W.printNumber("Name", SymName, Sym->st_name); 4884 } 4885 } 4886 4887 W.printNumber("Number of TLS and multi-GOT entries", 4888 uint64_t(Parser.getOtherEntries().size())); 4889 } 4890 4891 template <class ELFT> 4892 void LLVMStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 4893 auto PrintEntry = [&](const Elf_Addr *E) { 4894 W.printHex("Address", Parser.getPltAddress(E)); 4895 W.printHex("Initial", *E); 4896 }; 4897 4898 DictScope GS(W, "PLT GOT"); 4899 4900 { 4901 ListScope RS(W, "Reserved entries"); 4902 { 4903 DictScope D(W, "Entry"); 4904 PrintEntry(Parser.getPltLazyResolver()); 4905 W.printString("Purpose", StringRef("PLT lazy resolver")); 4906 } 4907 4908 if (auto E = Parser.getPltModulePointer()) { 4909 DictScope D(W, "Entry"); 4910 PrintEntry(E); 4911 W.printString("Purpose", StringRef("Module pointer")); 4912 } 4913 } 4914 { 4915 ListScope LS(W, "Entries"); 4916 for (auto &E : Parser.getPltEntries()) { 4917 DictScope D(W, "Entry"); 4918 PrintEntry(&E); 4919 4920 const Elf_Sym *Sym = Parser.getPltSym(&E); 4921 W.printHex("Value", Sym->st_value); 4922 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4923 4924 unsigned SectionIndex = 0; 4925 StringRef SectionName; 4926 this->dumper()->getSectionNameIndex( 4927 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4928 SectionIndex); 4929 W.printHex("Section", SectionName, SectionIndex); 4930 4931 std::string SymName = 4932 this->dumper()->getFullSymbolName(Sym, Parser.getPltStrTable(), true); 4933 W.printNumber("Name", SymName, Sym->st_name); 4934 } 4935 } 4936 } 4937