1 //===- ELFDumper.cpp - ELF-specific dumper --------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 /// 10 /// \file 11 /// This file implements the ELF-specific dumper for llvm-readobj. 12 /// 13 //===----------------------------------------------------------------------===// 14 15 #include "ARMEHABIPrinter.h" 16 #include "DwarfCFIEHPrinter.h" 17 #include "Error.h" 18 #include "ObjDumper.h" 19 #include "StackMapPrinter.h" 20 #include "llvm-readobj.h" 21 #include "llvm/ADT/ArrayRef.h" 22 #include "llvm/ADT/DenseMap.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/Object/ELF.h" 34 #include "llvm/Object/ELFObjectFile.h" 35 #include "llvm/Object/ELFTypes.h" 36 #include "llvm/Object/Error.h" 37 #include "llvm/Object/ObjectFile.h" 38 #include "llvm/Object/StackMapParser.h" 39 #include "llvm/Support/AMDGPUMetadata.h" 40 #include "llvm/Support/ARMAttributeParser.h" 41 #include "llvm/Support/ARMBuildAttributes.h" 42 #include "llvm/Support/Casting.h" 43 #include "llvm/Support/Compiler.h" 44 #include "llvm/Support/Endian.h" 45 #include "llvm/Support/ErrorHandling.h" 46 #include "llvm/Support/Format.h" 47 #include "llvm/Support/FormatVariadic.h" 48 #include "llvm/Support/FormattedStream.h" 49 #include "llvm/Support/LEB128.h" 50 #include "llvm/Support/MathExtras.h" 51 #include "llvm/Support/MipsABIFlags.h" 52 #include "llvm/Support/ScopedPrinter.h" 53 #include "llvm/Support/raw_ostream.h" 54 #include <algorithm> 55 #include <cinttypes> 56 #include <cstddef> 57 #include <cstdint> 58 #include <cstdlib> 59 #include <iterator> 60 #include <memory> 61 #include <string> 62 #include <system_error> 63 #include <vector> 64 65 using namespace llvm; 66 using namespace llvm::object; 67 using namespace ELF; 68 69 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \ 70 case ns::enum: return #enum; 71 72 #define ENUM_ENT(enum, altName) \ 73 { #enum, altName, ELF::enum } 74 75 #define ENUM_ENT_1(enum) \ 76 { #enum, #enum, ELF::enum } 77 78 #define LLVM_READOBJ_PHDR_ENUM(ns, enum) \ 79 case ns::enum: \ 80 return std::string(#enum).substr(3); 81 82 #define TYPEDEF_ELF_TYPES(ELFT) \ 83 using ELFO = ELFFile<ELFT>; \ 84 using Elf_Addr = typename ELFT::Addr; \ 85 using Elf_Shdr = typename ELFT::Shdr; \ 86 using Elf_Sym = typename ELFT::Sym; \ 87 using Elf_Dyn = typename ELFT::Dyn; \ 88 using Elf_Dyn_Range = typename ELFT::DynRange; \ 89 using Elf_Rel = typename ELFT::Rel; \ 90 using Elf_Rela = typename ELFT::Rela; \ 91 using Elf_Relr = typename ELFT::Relr; \ 92 using Elf_Rel_Range = typename ELFT::RelRange; \ 93 using Elf_Rela_Range = typename ELFT::RelaRange; \ 94 using Elf_Relr_Range = typename ELFT::RelrRange; \ 95 using Elf_Phdr = typename ELFT::Phdr; \ 96 using Elf_Half = typename ELFT::Half; \ 97 using Elf_Ehdr = typename ELFT::Ehdr; \ 98 using Elf_Word = typename ELFT::Word; \ 99 using Elf_Hash = typename ELFT::Hash; \ 100 using Elf_GnuHash = typename ELFT::GnuHash; \ 101 using Elf_Note = typename ELFT::Note; \ 102 using Elf_Sym_Range = typename ELFT::SymRange; \ 103 using Elf_Versym = typename ELFT::Versym; \ 104 using Elf_Verneed = typename ELFT::Verneed; \ 105 using Elf_Vernaux = typename ELFT::Vernaux; \ 106 using Elf_Verdef = typename ELFT::Verdef; \ 107 using Elf_Verdaux = typename ELFT::Verdaux; \ 108 using Elf_CGProfile = typename ELFT::CGProfile; \ 109 using uintX_t = typename ELFT::uint; 110 111 namespace { 112 113 template <class ELFT> class DumpStyle; 114 115 /// Represents a contiguous uniform range in the file. We cannot just create a 116 /// range directly because when creating one of these from the .dynamic table 117 /// the size, entity size and virtual address are different entries in arbitrary 118 /// order (DT_REL, DT_RELSZ, DT_RELENT for example). 119 struct DynRegionInfo { 120 DynRegionInfo() = default; 121 DynRegionInfo(const void *A, uint64_t S, uint64_t ES) 122 : Addr(A), Size(S), EntSize(ES) {} 123 124 /// Address in current address space. 125 const void *Addr = nullptr; 126 /// Size in bytes of the region. 127 uint64_t Size = 0; 128 /// Size of each entity in the region. 129 uint64_t EntSize = 0; 130 131 template <typename Type> ArrayRef<Type> getAsArrayRef() const { 132 const Type *Start = reinterpret_cast<const Type *>(Addr); 133 if (!Start) 134 return {Start, Start}; 135 if (EntSize != sizeof(Type) || Size % EntSize) 136 reportError("Invalid entity size"); 137 return {Start, Start + (Size / EntSize)}; 138 } 139 }; 140 141 template<typename ELFT> 142 class ELFDumper : public ObjDumper { 143 public: 144 ELFDumper(const object::ELFObjectFile<ELFT> *ObjF, ScopedPrinter &Writer); 145 146 void printFileHeaders() override; 147 void printSectionHeaders() override; 148 void printRelocations() override; 149 void printDynamicRelocations() override; 150 void printSymbols() override; 151 void printDynamicSymbols() override; 152 void printUnwindInfo() override; 153 154 void printDynamicTable() override; 155 void printNeededLibraries() override; 156 void printProgramHeaders() override; 157 void printHashTable() override; 158 void printGnuHashTable() override; 159 void printLoadName() override; 160 void printVersionInfo() override; 161 void printGroupSections() override; 162 163 void printAttributes() override; 164 void printMipsPLTGOT() override; 165 void printMipsABIFlags() override; 166 void printMipsReginfo() override; 167 void printMipsOptions() override; 168 169 void printStackMap() const override; 170 171 void printHashHistogram() override; 172 173 void printCGProfile() override; 174 void printAddrsig() override; 175 176 void printNotes() override; 177 178 void printELFLinkerOptions() override; 179 180 private: 181 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle; 182 183 TYPEDEF_ELF_TYPES(ELFT) 184 185 DynRegionInfo checkDRI(DynRegionInfo DRI) { 186 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 187 if (DRI.Addr < Obj->base() || 188 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize()) 189 error(llvm::object::object_error::parse_failed); 190 return DRI; 191 } 192 193 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) { 194 return checkDRI({ObjF->getELFFile()->base() + P->p_offset, P->p_filesz, EntSize}); 195 } 196 197 DynRegionInfo createDRIFrom(const Elf_Shdr *S) { 198 return checkDRI({ObjF->getELFFile()->base() + S->sh_offset, S->sh_size, S->sh_entsize}); 199 } 200 201 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments); 202 203 void printValue(uint64_t Type, uint64_t Value); 204 205 StringRef getDynamicString(uint64_t Offset) const; 206 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb, 207 bool &IsDefault) const; 208 void LoadVersionMap() const; 209 void LoadVersionNeeds(const Elf_Shdr *ec) const; 210 void LoadVersionDefs(const Elf_Shdr *sec) const; 211 212 const object::ELFObjectFile<ELFT> *ObjF; 213 DynRegionInfo DynRelRegion; 214 DynRegionInfo DynRelaRegion; 215 DynRegionInfo DynRelrRegion; 216 DynRegionInfo DynPLTRelRegion; 217 DynRegionInfo DynSymRegion; 218 DynRegionInfo DynamicTable; 219 StringRef DynamicStringTable; 220 StringRef SOName; 221 const Elf_Hash *HashTable = nullptr; 222 const Elf_GnuHash *GnuHashTable = nullptr; 223 const Elf_Shdr *DotSymtabSec = nullptr; 224 const Elf_Shdr *DotCGProfileSec = nullptr; 225 const Elf_Shdr *DotAddrsigSec = nullptr; 226 StringRef DynSymtabName; 227 ArrayRef<Elf_Word> ShndxTable; 228 229 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version 230 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r 231 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d 232 233 // Records for each version index the corresponding Verdef or Vernaux entry. 234 // This is filled the first time LoadVersionMap() is called. 235 class VersionMapEntry : public PointerIntPair<const void *, 1> { 236 public: 237 // If the integer is 0, this is an Elf_Verdef*. 238 // If the integer is 1, this is an Elf_Vernaux*. 239 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {} 240 VersionMapEntry(const Elf_Verdef *verdef) 241 : PointerIntPair<const void *, 1>(verdef, 0) {} 242 VersionMapEntry(const Elf_Vernaux *vernaux) 243 : PointerIntPair<const void *, 1>(vernaux, 1) {} 244 245 bool isNull() const { return getPointer() == nullptr; } 246 bool isVerdef() const { return !isNull() && getInt() == 0; } 247 bool isVernaux() const { return !isNull() && getInt() == 1; } 248 const Elf_Verdef *getVerdef() const { 249 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr; 250 } 251 const Elf_Vernaux *getVernaux() const { 252 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr; 253 } 254 }; 255 mutable SmallVector<VersionMapEntry, 16> VersionMap; 256 257 public: 258 Elf_Dyn_Range dynamic_table() const { 259 return DynamicTable.getAsArrayRef<Elf_Dyn>(); 260 } 261 262 Elf_Sym_Range dynamic_symbols() const { 263 return DynSymRegion.getAsArrayRef<Elf_Sym>(); 264 } 265 266 Elf_Rel_Range dyn_rels() const; 267 Elf_Rela_Range dyn_relas() const; 268 Elf_Relr_Range dyn_relrs() const; 269 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable, 270 bool IsDynamic) const; 271 void getSectionNameIndex(const Elf_Sym *Symbol, const Elf_Sym *FirstSym, 272 StringRef &SectionName, 273 unsigned &SectionIndex) const; 274 StringRef getStaticSymbolName(uint32_t Index) const; 275 276 void printSymbolsHelper(bool IsDynamic) const; 277 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; } 278 const Elf_Shdr *getDotCGProfileSec() const { return DotCGProfileSec; } 279 const Elf_Shdr *getDotAddrsigSec() const { return DotAddrsigSec; } 280 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; } 281 StringRef getDynamicStringTable() const { return DynamicStringTable; } 282 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; } 283 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; } 284 const DynRegionInfo &getDynRelrRegion() const { return DynRelrRegion; } 285 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; } 286 const Elf_Hash *getHashTable() const { return HashTable; } 287 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; } 288 }; 289 290 template <class ELFT> 291 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const { 292 StringRef StrTable, SymtabName; 293 size_t Entries = 0; 294 Elf_Sym_Range Syms(nullptr, nullptr); 295 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 296 if (IsDynamic) { 297 StrTable = DynamicStringTable; 298 Syms = dynamic_symbols(); 299 SymtabName = DynSymtabName; 300 if (DynSymRegion.Addr) 301 Entries = DynSymRegion.Size / DynSymRegion.EntSize; 302 } else { 303 if (!DotSymtabSec) 304 return; 305 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 306 Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 307 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec)); 308 Entries = DotSymtabSec->getEntityCount(); 309 } 310 if (Syms.begin() == Syms.end()) 311 return; 312 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries); 313 for (const auto &Sym : Syms) 314 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic); 315 } 316 317 template <class ELFT> class MipsGOTParser; 318 319 template <typename ELFT> class DumpStyle { 320 public: 321 using Elf_Shdr = typename ELFT::Shdr; 322 using Elf_Sym = typename ELFT::Sym; 323 324 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {} 325 virtual ~DumpStyle() = default; 326 327 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0; 328 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0; 329 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0; 330 virtual void printSectionHeaders(const ELFFile<ELFT> *Obj) = 0; 331 virtual void printSymbols(const ELFFile<ELFT> *Obj) = 0; 332 virtual void printDynamicSymbols(const ELFFile<ELFT> *Obj) = 0; 333 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0; 334 virtual void printSymtabMessage(const ELFFile<ELFT> *obj, StringRef Name, 335 size_t Offset) {} 336 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol, 337 const Elf_Sym *FirstSym, StringRef StrTable, 338 bool IsDynamic) = 0; 339 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj) = 0; 340 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0; 341 virtual void printCGProfile(const ELFFile<ELFT> *Obj) = 0; 342 virtual void printAddrsig(const ELFFile<ELFT> *Obj) = 0; 343 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0; 344 virtual void printELFLinkerOptions(const ELFFile<ELFT> *Obj) = 0; 345 virtual void printMipsGOT(const MipsGOTParser<ELFT> &Parser) = 0; 346 virtual void printMipsPLT(const MipsGOTParser<ELFT> &Parser) = 0; 347 const ELFDumper<ELFT> *dumper() const { return Dumper; } 348 349 private: 350 const ELFDumper<ELFT> *Dumper; 351 }; 352 353 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> { 354 formatted_raw_ostream OS; 355 356 public: 357 TYPEDEF_ELF_TYPES(ELFT) 358 359 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 360 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {} 361 362 void printFileHeaders(const ELFO *Obj) override; 363 void printGroupSections(const ELFFile<ELFT> *Obj) override; 364 void printRelocations(const ELFO *Obj) override; 365 void printSectionHeaders(const ELFO *Obj) override; 366 void printSymbols(const ELFO *Obj) override; 367 void printDynamicSymbols(const ELFO *Obj) override; 368 void printDynamicRelocations(const ELFO *Obj) override; 369 void printSymtabMessage(const ELFO *Obj, StringRef Name, 370 size_t Offset) override; 371 void printProgramHeaders(const ELFO *Obj) override; 372 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 373 void printCGProfile(const ELFFile<ELFT> *Obj) override; 374 void printAddrsig(const ELFFile<ELFT> *Obj) override; 375 void printNotes(const ELFFile<ELFT> *Obj) override; 376 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; 377 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; 378 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override; 379 380 private: 381 struct Field { 382 StringRef Str; 383 unsigned Column; 384 385 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {} 386 Field(unsigned Col) : Str(""), Column(Col) {} 387 }; 388 389 template <typename T, typename TEnum> 390 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) { 391 for (const auto &EnumItem : EnumValues) 392 if (EnumItem.Value == Value) 393 return EnumItem.AltName; 394 return to_hexString(Value, false); 395 } 396 397 template <typename T, typename TEnum> 398 std::string printFlags(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues, 399 TEnum EnumMask1 = {}, TEnum EnumMask2 = {}, 400 TEnum EnumMask3 = {}) { 401 std::string Str; 402 for (const auto &Flag : EnumValues) { 403 if (Flag.Value == 0) 404 continue; 405 406 TEnum EnumMask{}; 407 if (Flag.Value & EnumMask1) 408 EnumMask = EnumMask1; 409 else if (Flag.Value & EnumMask2) 410 EnumMask = EnumMask2; 411 else if (Flag.Value & EnumMask3) 412 EnumMask = EnumMask3; 413 bool IsEnum = (Flag.Value & EnumMask) != 0; 414 if ((!IsEnum && (Value & Flag.Value) == Flag.Value) || 415 (IsEnum && (Value & EnumMask) == Flag.Value)) { 416 if (!Str.empty()) 417 Str += ", "; 418 Str += Flag.AltName; 419 } 420 } 421 return Str; 422 } 423 424 formatted_raw_ostream &printField(struct Field F) { 425 if (F.Column != 0) 426 OS.PadToColumn(F.Column); 427 OS << F.Str; 428 OS.flush(); 429 return OS; 430 } 431 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym, 432 StringRef StrTable, uint32_t Bucket); 433 void printRelocHeader(unsigned SType); 434 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 435 const Elf_Rela &R, bool IsRela); 436 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 437 StringRef StrTable, bool IsDynamic) override; 438 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol, 439 const Elf_Sym *FirstSym); 440 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela); 441 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 442 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 443 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 444 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 445 }; 446 447 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> { 448 public: 449 TYPEDEF_ELF_TYPES(ELFT) 450 451 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 452 : DumpStyle<ELFT>(Dumper), W(W) {} 453 454 void printFileHeaders(const ELFO *Obj) override; 455 void printGroupSections(const ELFFile<ELFT> *Obj) override; 456 void printRelocations(const ELFO *Obj) override; 457 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj); 458 void printSectionHeaders(const ELFO *Obj) override; 459 void printSymbols(const ELFO *Obj) override; 460 void printDynamicSymbols(const ELFO *Obj) override; 461 void printDynamicRelocations(const ELFO *Obj) override; 462 void printProgramHeaders(const ELFO *Obj) override; 463 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 464 void printCGProfile(const ELFFile<ELFT> *Obj) override; 465 void printAddrsig(const ELFFile<ELFT> *Obj) override; 466 void printNotes(const ELFFile<ELFT> *Obj) override; 467 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; 468 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; 469 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override; 470 471 private: 472 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab); 473 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel); 474 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 475 StringRef StrTable, bool IsDynamic) override; 476 477 ScopedPrinter &W; 478 }; 479 480 } // end anonymous namespace 481 482 namespace llvm { 483 484 template <class ELFT> 485 static std::error_code createELFDumper(const ELFObjectFile<ELFT> *Obj, 486 ScopedPrinter &Writer, 487 std::unique_ptr<ObjDumper> &Result) { 488 Result.reset(new ELFDumper<ELFT>(Obj, Writer)); 489 return readobj_error::success; 490 } 491 492 std::error_code createELFDumper(const object::ObjectFile *Obj, 493 ScopedPrinter &Writer, 494 std::unique_ptr<ObjDumper> &Result) { 495 // Little-endian 32-bit 496 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) 497 return createELFDumper(ELFObj, Writer, Result); 498 499 // Big-endian 32-bit 500 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) 501 return createELFDumper(ELFObj, Writer, Result); 502 503 // Little-endian 64-bit 504 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) 505 return createELFDumper(ELFObj, Writer, Result); 506 507 // Big-endian 64-bit 508 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) 509 return createELFDumper(ELFObj, Writer, Result); 510 511 return readobj_error::unsupported_obj_file_format; 512 } 513 514 } // end namespace llvm 515 516 // Iterate through the versions needed section, and place each Elf_Vernaux 517 // in the VersionMap according to its index. 518 template <class ELFT> 519 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const { 520 unsigned vn_size = sec->sh_size; // Size of section in bytes 521 unsigned vn_count = sec->sh_info; // Number of Verneed entries 522 const char *sec_start = (const char *)ObjF->getELFFile()->base() + sec->sh_offset; 523 const char *sec_end = sec_start + vn_size; 524 // The first Verneed entry is at the start of the section. 525 const char *p = sec_start; 526 for (unsigned i = 0; i < vn_count; i++) { 527 if (p + sizeof(Elf_Verneed) > sec_end) 528 report_fatal_error("Section ended unexpectedly while scanning " 529 "version needed records."); 530 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p); 531 if (vn->vn_version != ELF::VER_NEED_CURRENT) 532 report_fatal_error("Unexpected verneed version"); 533 // Iterate through the Vernaux entries 534 const char *paux = p + vn->vn_aux; 535 for (unsigned j = 0; j < vn->vn_cnt; j++) { 536 if (paux + sizeof(Elf_Vernaux) > sec_end) 537 report_fatal_error("Section ended unexpected while scanning auxiliary " 538 "version needed records."); 539 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux); 540 size_t index = vna->vna_other & ELF::VERSYM_VERSION; 541 if (index >= VersionMap.size()) 542 VersionMap.resize(index + 1); 543 VersionMap[index] = VersionMapEntry(vna); 544 paux += vna->vna_next; 545 } 546 p += vn->vn_next; 547 } 548 } 549 550 // Iterate through the version definitions, and place each Elf_Verdef 551 // in the VersionMap according to its index. 552 template <class ELFT> 553 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const { 554 unsigned vd_size = sec->sh_size; // Size of section in bytes 555 unsigned vd_count = sec->sh_info; // Number of Verdef entries 556 const char *sec_start = (const char *)ObjF->getELFFile()->base() + sec->sh_offset; 557 const char *sec_end = sec_start + vd_size; 558 // The first Verdef entry is at the start of the section. 559 const char *p = sec_start; 560 for (unsigned i = 0; i < vd_count; i++) { 561 if (p + sizeof(Elf_Verdef) > sec_end) 562 report_fatal_error("Section ended unexpectedly while scanning " 563 "version definitions."); 564 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p); 565 if (vd->vd_version != ELF::VER_DEF_CURRENT) 566 report_fatal_error("Unexpected verdef version"); 567 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION; 568 if (index >= VersionMap.size()) 569 VersionMap.resize(index + 1); 570 VersionMap[index] = VersionMapEntry(vd); 571 p += vd->vd_next; 572 } 573 } 574 575 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const { 576 // If there is no dynamic symtab or version table, there is nothing to do. 577 if (!DynSymRegion.Addr || !dot_gnu_version_sec) 578 return; 579 580 // Has the VersionMap already been loaded? 581 if (VersionMap.size() > 0) 582 return; 583 584 // The first two version indexes are reserved. 585 // Index 0 is LOCAL, index 1 is GLOBAL. 586 VersionMap.push_back(VersionMapEntry()); 587 VersionMap.push_back(VersionMapEntry()); 588 589 if (dot_gnu_version_d_sec) 590 LoadVersionDefs(dot_gnu_version_d_sec); 591 592 if (dot_gnu_version_r_sec) 593 LoadVersionNeeds(dot_gnu_version_r_sec); 594 } 595 596 template <typename ELFO, class ELFT> 597 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 598 const typename ELFO::Elf_Shdr *Sec, 599 ScopedPrinter &W) { 600 DictScope SS(W, "Version symbols"); 601 if (!Sec) 602 return; 603 StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 604 W.printNumber("Section Name", Name, Sec->sh_name); 605 W.printHex("Address", Sec->sh_addr); 606 W.printHex("Offset", Sec->sh_offset); 607 W.printNumber("Link", Sec->sh_link); 608 609 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset; 610 StringRef StrTable = Dumper->getDynamicStringTable(); 611 612 // Same number of entries in the dynamic symbol table (DT_SYMTAB). 613 ListScope Syms(W, "Symbols"); 614 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) { 615 DictScope S(W, "Symbol"); 616 std::string FullSymbolName = 617 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */); 618 W.printNumber("Version", *P); 619 W.printString("Name", FullSymbolName); 620 P += sizeof(typename ELFO::Elf_Half); 621 } 622 } 623 624 static const EnumEntry<unsigned> SymVersionFlags[] = { 625 {"Base", "BASE", VER_FLG_BASE}, 626 {"Weak", "WEAK", VER_FLG_WEAK}, 627 {"Info", "INFO", VER_FLG_INFO}}; 628 629 template <typename ELFO, class ELFT> 630 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper, 631 const ELFO *Obj, 632 const typename ELFO::Elf_Shdr *Sec, 633 ScopedPrinter &W) { 634 using VerDef = typename ELFO::Elf_Verdef; 635 using VerdAux = typename ELFO::Elf_Verdaux; 636 637 DictScope SD(W, "SHT_GNU_verdef"); 638 if (!Sec) 639 return; 640 641 // The number of entries in the section SHT_GNU_verdef 642 // is determined by DT_VERDEFNUM tag. 643 unsigned VerDefsNum = 0; 644 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) { 645 if (Dyn.d_tag == DT_VERDEFNUM) { 646 VerDefsNum = Dyn.d_un.d_val; 647 break; 648 } 649 } 650 651 const uint8_t *SecStartAddress = 652 (const uint8_t *)Obj->base() + Sec->sh_offset; 653 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size; 654 const uint8_t *P = SecStartAddress; 655 const typename ELFO::Elf_Shdr *StrTab = 656 unwrapOrError(Obj->getSection(Sec->sh_link)); 657 658 while (VerDefsNum--) { 659 if (P + sizeof(VerDef) > SecEndAddress) 660 report_fatal_error("invalid offset in the section"); 661 662 auto *VD = reinterpret_cast<const VerDef *>(P); 663 DictScope Def(W, "Definition"); 664 W.printNumber("Version", VD->vd_version); 665 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags)); 666 W.printNumber("Index", VD->vd_ndx); 667 W.printNumber("Hash", VD->vd_hash); 668 W.printString("Name", 669 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 670 VD->getAux()->vda_name))); 671 if (!VD->vd_cnt) 672 report_fatal_error("at least one definition string must exist"); 673 if (VD->vd_cnt > 2) 674 report_fatal_error("more than one predecessor is not expected"); 675 676 if (VD->vd_cnt == 2) { 677 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next; 678 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux); 679 W.printString("Predecessor", 680 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 681 Aux->vda_name))); 682 } 683 684 P += VD->vd_next; 685 } 686 } 687 688 template <typename ELFO, class ELFT> 689 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper, 690 const ELFO *Obj, 691 const typename ELFO::Elf_Shdr *Sec, 692 ScopedPrinter &W) { 693 using VerNeed = typename ELFO::Elf_Verneed; 694 using VernAux = typename ELFO::Elf_Vernaux; 695 696 DictScope SD(W, "SHT_GNU_verneed"); 697 if (!Sec) 698 return; 699 700 unsigned VerNeedNum = 0; 701 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) { 702 if (Dyn.d_tag == DT_VERNEEDNUM) { 703 VerNeedNum = Dyn.d_un.d_val; 704 break; 705 } 706 } 707 708 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset; 709 const typename ELFO::Elf_Shdr *StrTab = 710 unwrapOrError(Obj->getSection(Sec->sh_link)); 711 712 const uint8_t *P = SecData; 713 for (unsigned I = 0; I < VerNeedNum; ++I) { 714 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P); 715 DictScope Entry(W, "Dependency"); 716 W.printNumber("Version", Need->vn_version); 717 W.printNumber("Count", Need->vn_cnt); 718 W.printString("FileName", 719 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 720 Need->vn_file))); 721 722 const uint8_t *PAux = P + Need->vn_aux; 723 for (unsigned J = 0; J < Need->vn_cnt; ++J) { 724 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux); 725 DictScope Entry(W, "Entry"); 726 W.printNumber("Hash", Aux->vna_hash); 727 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags)); 728 W.printNumber("Index", Aux->vna_other); 729 W.printString("Name", 730 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 731 Aux->vna_name))); 732 PAux += Aux->vna_next; 733 } 734 P += Need->vn_next; 735 } 736 } 737 738 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() { 739 // Dump version symbol section. 740 printVersionSymbolSection(this, ObjF->getELFFile(), dot_gnu_version_sec, W); 741 742 // Dump version definition section. 743 printVersionDefinitionSection(this, ObjF->getELFFile(), dot_gnu_version_d_sec, W); 744 745 // Dump version dependency section. 746 printVersionDependencySection(this, ObjF->getELFFile(), dot_gnu_version_r_sec, W); 747 } 748 749 template <typename ELFT> 750 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, 751 const Elf_Sym *symb, 752 bool &IsDefault) const { 753 // This is a dynamic symbol. Look in the GNU symbol version table. 754 if (!dot_gnu_version_sec) { 755 // No version table. 756 IsDefault = false; 757 return StringRef(""); 758 } 759 760 // Determine the position in the symbol table of this entry. 761 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) - 762 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) / 763 sizeof(Elf_Sym); 764 765 // Get the corresponding version index entry 766 const Elf_Versym *vs = unwrapOrError( 767 ObjF->getELFFile()->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index)); 768 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION; 769 770 // Special markers for unversioned symbols. 771 if (version_index == ELF::VER_NDX_LOCAL || 772 version_index == ELF::VER_NDX_GLOBAL) { 773 IsDefault = false; 774 return StringRef(""); 775 } 776 777 // Lookup this symbol in the version table 778 LoadVersionMap(); 779 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull()) 780 reportError("Invalid version entry"); 781 const VersionMapEntry &entry = VersionMap[version_index]; 782 783 // Get the version name string 784 size_t name_offset; 785 if (entry.isVerdef()) { 786 // The first Verdaux entry holds the name. 787 name_offset = entry.getVerdef()->getAux()->vda_name; 788 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN); 789 } else { 790 name_offset = entry.getVernaux()->vna_name; 791 IsDefault = false; 792 } 793 if (name_offset >= StrTab.size()) 794 reportError("Invalid string offset"); 795 return StringRef(StrTab.data() + name_offset); 796 } 797 798 template <typename ELFT> 799 StringRef ELFDumper<ELFT>::getStaticSymbolName(uint32_t Index) const { 800 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 801 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 802 Elf_Sym_Range Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 803 if (Index >= Syms.size()) 804 reportError("Invalid symbol index"); 805 const Elf_Sym *Sym = &Syms[Index]; 806 return unwrapOrError(Sym->getName(StrTable)); 807 } 808 809 template <typename ELFT> 810 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol, 811 StringRef StrTable, 812 bool IsDynamic) const { 813 StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable)); 814 if (!IsDynamic) 815 return SymbolName; 816 817 std::string FullSymbolName(SymbolName); 818 819 bool IsDefault; 820 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault); 821 FullSymbolName += (IsDefault ? "@@" : "@"); 822 FullSymbolName += Version; 823 return FullSymbolName; 824 } 825 826 template <typename ELFT> 827 void ELFDumper<ELFT>::getSectionNameIndex(const Elf_Sym *Symbol, 828 const Elf_Sym *FirstSym, 829 StringRef &SectionName, 830 unsigned &SectionIndex) const { 831 SectionIndex = Symbol->st_shndx; 832 if (Symbol->isUndefined()) 833 SectionName = "Undefined"; 834 else if (Symbol->isProcessorSpecific()) 835 SectionName = "Processor Specific"; 836 else if (Symbol->isOSSpecific()) 837 SectionName = "Operating System Specific"; 838 else if (Symbol->isAbsolute()) 839 SectionName = "Absolute"; 840 else if (Symbol->isCommon()) 841 SectionName = "Common"; 842 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX) 843 SectionName = "Reserved"; 844 else { 845 if (SectionIndex == SHN_XINDEX) 846 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 847 Symbol, FirstSym, ShndxTable)); 848 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 849 const typename ELFT::Shdr *Sec = 850 unwrapOrError(Obj->getSection(SectionIndex)); 851 SectionName = unwrapOrError(Obj->getSectionName(Sec)); 852 } 853 } 854 855 template <class ELFO> 856 static const typename ELFO::Elf_Shdr * 857 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) { 858 for (const auto &Shdr : unwrapOrError(Obj->sections())) 859 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0) 860 return &Shdr; 861 return nullptr; 862 } 863 864 template <class ELFO> 865 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj, 866 StringRef Name) { 867 for (const auto &Shdr : unwrapOrError(Obj.sections())) { 868 if (Name == unwrapOrError(Obj.getSectionName(&Shdr))) 869 return &Shdr; 870 } 871 return nullptr; 872 } 873 874 static const EnumEntry<unsigned> ElfClass[] = { 875 {"None", "none", ELF::ELFCLASSNONE}, 876 {"32-bit", "ELF32", ELF::ELFCLASS32}, 877 {"64-bit", "ELF64", ELF::ELFCLASS64}, 878 }; 879 880 static const EnumEntry<unsigned> ElfDataEncoding[] = { 881 {"None", "none", ELF::ELFDATANONE}, 882 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB}, 883 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB}, 884 }; 885 886 static const EnumEntry<unsigned> ElfObjectFileType[] = { 887 {"None", "NONE (none)", ELF::ET_NONE}, 888 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL}, 889 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC}, 890 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN}, 891 {"Core", "CORE (Core file)", ELF::ET_CORE}, 892 }; 893 894 static const EnumEntry<unsigned> ElfOSABI[] = { 895 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE}, 896 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX}, 897 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD}, 898 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX}, 899 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD}, 900 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS}, 901 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX}, 902 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX}, 903 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD}, 904 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64}, 905 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO}, 906 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD}, 907 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS}, 908 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK}, 909 {"AROS", "AROS", ELF::ELFOSABI_AROS}, 910 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS}, 911 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI}, 912 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE} 913 }; 914 915 static const EnumEntry<unsigned> AMDGPUElfOSABI[] = { 916 {"AMDGPU_HSA", "AMDGPU - HSA", ELF::ELFOSABI_AMDGPU_HSA}, 917 {"AMDGPU_PAL", "AMDGPU - PAL", ELF::ELFOSABI_AMDGPU_PAL}, 918 {"AMDGPU_MESA3D", "AMDGPU - MESA3D", ELF::ELFOSABI_AMDGPU_MESA3D} 919 }; 920 921 static const EnumEntry<unsigned> ARMElfOSABI[] = { 922 {"ARM", "ARM", ELF::ELFOSABI_ARM} 923 }; 924 925 static const EnumEntry<unsigned> C6000ElfOSABI[] = { 926 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI}, 927 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX} 928 }; 929 930 static const EnumEntry<unsigned> ElfMachineType[] = { 931 ENUM_ENT(EM_NONE, "None"), 932 ENUM_ENT(EM_M32, "WE32100"), 933 ENUM_ENT(EM_SPARC, "Sparc"), 934 ENUM_ENT(EM_386, "Intel 80386"), 935 ENUM_ENT(EM_68K, "MC68000"), 936 ENUM_ENT(EM_88K, "MC88000"), 937 ENUM_ENT(EM_IAMCU, "EM_IAMCU"), 938 ENUM_ENT(EM_860, "Intel 80860"), 939 ENUM_ENT(EM_MIPS, "MIPS R3000"), 940 ENUM_ENT(EM_S370, "IBM System/370"), 941 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"), 942 ENUM_ENT(EM_PARISC, "HPPA"), 943 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"), 944 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"), 945 ENUM_ENT(EM_960, "Intel 80960"), 946 ENUM_ENT(EM_PPC, "PowerPC"), 947 ENUM_ENT(EM_PPC64, "PowerPC64"), 948 ENUM_ENT(EM_S390, "IBM S/390"), 949 ENUM_ENT(EM_SPU, "SPU"), 950 ENUM_ENT(EM_V800, "NEC V800 series"), 951 ENUM_ENT(EM_FR20, "Fujistsu FR20"), 952 ENUM_ENT(EM_RH32, "TRW RH-32"), 953 ENUM_ENT(EM_RCE, "Motorola RCE"), 954 ENUM_ENT(EM_ARM, "ARM"), 955 ENUM_ENT(EM_ALPHA, "EM_ALPHA"), 956 ENUM_ENT(EM_SH, "Hitachi SH"), 957 ENUM_ENT(EM_SPARCV9, "Sparc v9"), 958 ENUM_ENT(EM_TRICORE, "Siemens Tricore"), 959 ENUM_ENT(EM_ARC, "ARC"), 960 ENUM_ENT(EM_H8_300, "Hitachi H8/300"), 961 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"), 962 ENUM_ENT(EM_H8S, "Hitachi H8S"), 963 ENUM_ENT(EM_H8_500, "Hitachi H8/500"), 964 ENUM_ENT(EM_IA_64, "Intel IA-64"), 965 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"), 966 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"), 967 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"), 968 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"), 969 ENUM_ENT(EM_PCP, "Siemens PCP"), 970 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"), 971 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"), 972 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"), 973 ENUM_ENT(EM_ME16, "Toyota ME16 processor"), 974 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"), 975 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"), 976 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"), 977 ENUM_ENT(EM_PDSP, "Sony DSP processor"), 978 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"), 979 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"), 980 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"), 981 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"), 982 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"), 983 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"), 984 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"), 985 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"), 986 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"), 987 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"), 988 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"), 989 ENUM_ENT(EM_VAX, "Digital VAX"), 990 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"), 991 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"), 992 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"), 993 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"), 994 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"), 995 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"), 996 ENUM_ENT(EM_PRISM, "Vitesse Prism"), 997 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"), 998 ENUM_ENT(EM_FR30, "Fujitsu FR30"), 999 ENUM_ENT(EM_D10V, "Mitsubishi D10V"), 1000 ENUM_ENT(EM_D30V, "Mitsubishi D30V"), 1001 ENUM_ENT(EM_V850, "NEC v850"), 1002 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"), 1003 ENUM_ENT(EM_MN10300, "Matsushita MN10300"), 1004 ENUM_ENT(EM_MN10200, "Matsushita MN10200"), 1005 ENUM_ENT(EM_PJ, "picoJava"), 1006 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"), 1007 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"), 1008 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"), 1009 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"), 1010 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"), 1011 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"), 1012 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"), 1013 ENUM_ENT(EM_SNP1K, "EM_SNP1K"), 1014 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"), 1015 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"), 1016 ENUM_ENT(EM_MAX, "MAX Processor"), 1017 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"), 1018 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"), 1019 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"), 1020 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"), 1021 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"), 1022 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"), 1023 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"), 1024 ENUM_ENT(EM_UNICORE, "Unicore"), 1025 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"), 1026 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"), 1027 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"), 1028 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"), 1029 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"), 1030 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"), 1031 ENUM_ENT(EM_M16C, "Renesas M16C"), 1032 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"), 1033 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"), 1034 ENUM_ENT(EM_M32C, "Renesas M32C"), 1035 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"), 1036 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"), 1037 ENUM_ENT(EM_SHARC, "EM_SHARC"), 1038 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"), 1039 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"), 1040 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"), 1041 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"), 1042 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"), 1043 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"), 1044 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"), 1045 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"), 1046 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"), 1047 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"), 1048 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"), 1049 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"), 1050 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"), 1051 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"), 1052 ENUM_ENT(EM_8051, "Intel 8051 and variants"), 1053 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"), 1054 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"), 1055 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"), 1056 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"), 1057 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"), 1058 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"), 1059 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"), 1060 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"), 1061 ENUM_ENT(EM_RX, "Renesas RX"), 1062 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"), 1063 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"), 1064 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"), 1065 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"), 1066 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"), 1067 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"), 1068 ENUM_ENT(EM_L10M, "EM_L10M"), 1069 ENUM_ENT(EM_K10M, "EM_K10M"), 1070 ENUM_ENT(EM_AARCH64, "AArch64"), 1071 ENUM_ENT(EM_AVR32, "Atmel Corporation 32-bit microprocessor family"), 1072 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"), 1073 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"), 1074 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"), 1075 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"), 1076 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"), 1077 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"), 1078 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"), 1079 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"), 1080 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"), 1081 ENUM_ENT(EM_OPEN8, "EM_OPEN8"), 1082 ENUM_ENT(EM_RL78, "Renesas RL78"), 1083 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"), 1084 ENUM_ENT(EM_78KOR, "EM_78KOR"), 1085 ENUM_ENT(EM_56800EX, "EM_56800EX"), 1086 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"), 1087 ENUM_ENT(EM_RISCV, "RISC-V"), 1088 ENUM_ENT(EM_LANAI, "EM_LANAI"), 1089 ENUM_ENT(EM_BPF, "EM_BPF"), 1090 }; 1091 1092 static const EnumEntry<unsigned> ElfSymbolBindings[] = { 1093 {"Local", "LOCAL", ELF::STB_LOCAL}, 1094 {"Global", "GLOBAL", ELF::STB_GLOBAL}, 1095 {"Weak", "WEAK", ELF::STB_WEAK}, 1096 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}}; 1097 1098 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = { 1099 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT}, 1100 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL}, 1101 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN}, 1102 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}}; 1103 1104 static const EnumEntry<unsigned> ElfSymbolTypes[] = { 1105 {"None", "NOTYPE", ELF::STT_NOTYPE}, 1106 {"Object", "OBJECT", ELF::STT_OBJECT}, 1107 {"Function", "FUNC", ELF::STT_FUNC}, 1108 {"Section", "SECTION", ELF::STT_SECTION}, 1109 {"File", "FILE", ELF::STT_FILE}, 1110 {"Common", "COMMON", ELF::STT_COMMON}, 1111 {"TLS", "TLS", ELF::STT_TLS}, 1112 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}}; 1113 1114 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = { 1115 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL } 1116 }; 1117 1118 static const char *getGroupType(uint32_t Flag) { 1119 if (Flag & ELF::GRP_COMDAT) 1120 return "COMDAT"; 1121 else 1122 return "(unknown)"; 1123 } 1124 1125 static const EnumEntry<unsigned> ElfSectionFlags[] = { 1126 ENUM_ENT(SHF_WRITE, "W"), 1127 ENUM_ENT(SHF_ALLOC, "A"), 1128 ENUM_ENT(SHF_EXCLUDE, "E"), 1129 ENUM_ENT(SHF_EXECINSTR, "X"), 1130 ENUM_ENT(SHF_MERGE, "M"), 1131 ENUM_ENT(SHF_STRINGS, "S"), 1132 ENUM_ENT(SHF_INFO_LINK, "I"), 1133 ENUM_ENT(SHF_LINK_ORDER, "L"), 1134 ENUM_ENT(SHF_OS_NONCONFORMING, "o"), 1135 ENUM_ENT(SHF_GROUP, "G"), 1136 ENUM_ENT(SHF_TLS, "T"), 1137 ENUM_ENT(SHF_MASKOS, "o"), 1138 ENUM_ENT(SHF_MASKPROC, "p"), 1139 ENUM_ENT_1(SHF_COMPRESSED), 1140 }; 1141 1142 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = { 1143 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION), 1144 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION) 1145 }; 1146 1147 static const EnumEntry<unsigned> ElfARMSectionFlags[] = { 1148 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE) 1149 }; 1150 1151 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = { 1152 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL) 1153 }; 1154 1155 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = { 1156 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES), 1157 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ), 1158 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ), 1159 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP), 1160 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ), 1161 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ), 1162 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ), 1163 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING ) 1164 }; 1165 1166 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = { 1167 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE) 1168 }; 1169 1170 static std::string getGNUFlags(uint64_t Flags) { 1171 std::string Str; 1172 for (auto Entry : ElfSectionFlags) { 1173 uint64_t Flag = Entry.Value & Flags; 1174 Flags &= ~Entry.Value; 1175 switch (Flag) { 1176 case ELF::SHF_WRITE: 1177 case ELF::SHF_ALLOC: 1178 case ELF::SHF_EXECINSTR: 1179 case ELF::SHF_MERGE: 1180 case ELF::SHF_STRINGS: 1181 case ELF::SHF_INFO_LINK: 1182 case ELF::SHF_LINK_ORDER: 1183 case ELF::SHF_OS_NONCONFORMING: 1184 case ELF::SHF_GROUP: 1185 case ELF::SHF_TLS: 1186 case ELF::SHF_EXCLUDE: 1187 Str += Entry.AltName; 1188 break; 1189 default: 1190 if (Flag & ELF::SHF_MASKOS) 1191 Str += "o"; 1192 else if (Flag & ELF::SHF_MASKPROC) 1193 Str += "p"; 1194 else if (Flag) 1195 Str += "x"; 1196 } 1197 } 1198 return Str; 1199 } 1200 1201 static const char *getElfSegmentType(unsigned Arch, unsigned Type) { 1202 // Check potentially overlapped processor-specific 1203 // program header type. 1204 switch (Arch) { 1205 case ELF::EM_ARM: 1206 switch (Type) { 1207 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX); 1208 } 1209 break; 1210 case ELF::EM_MIPS: 1211 case ELF::EM_MIPS_RS3_LE: 1212 switch (Type) { 1213 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO); 1214 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC); 1215 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS); 1216 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS); 1217 } 1218 break; 1219 } 1220 1221 switch (Type) { 1222 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL ); 1223 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD ); 1224 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC); 1225 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP ); 1226 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE ); 1227 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB ); 1228 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR ); 1229 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS ); 1230 1231 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME); 1232 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND); 1233 1234 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK); 1235 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO); 1236 1237 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE); 1238 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED); 1239 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA); 1240 1241 default: return ""; 1242 } 1243 } 1244 1245 static std::string getElfPtType(unsigned Arch, unsigned Type) { 1246 switch (Type) { 1247 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL) 1248 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD) 1249 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC) 1250 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP) 1251 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE) 1252 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB) 1253 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR) 1254 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS) 1255 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME) 1256 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND) 1257 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK) 1258 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO) 1259 default: 1260 // All machine specific PT_* types 1261 switch (Arch) { 1262 case ELF::EM_ARM: 1263 if (Type == ELF::PT_ARM_EXIDX) 1264 return "EXIDX"; 1265 break; 1266 case ELF::EM_MIPS: 1267 case ELF::EM_MIPS_RS3_LE: 1268 switch (Type) { 1269 case PT_MIPS_REGINFO: 1270 return "REGINFO"; 1271 case PT_MIPS_RTPROC: 1272 return "RTPROC"; 1273 case PT_MIPS_OPTIONS: 1274 return "OPTIONS"; 1275 case PT_MIPS_ABIFLAGS: 1276 return "ABIFLAGS"; 1277 } 1278 break; 1279 } 1280 } 1281 return std::string("<unknown>: ") + to_string(format_hex(Type, 1)); 1282 } 1283 1284 static const EnumEntry<unsigned> ElfSegmentFlags[] = { 1285 LLVM_READOBJ_ENUM_ENT(ELF, PF_X), 1286 LLVM_READOBJ_ENUM_ENT(ELF, PF_W), 1287 LLVM_READOBJ_ENUM_ENT(ELF, PF_R) 1288 }; 1289 1290 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = { 1291 ENUM_ENT(EF_MIPS_NOREORDER, "noreorder"), 1292 ENUM_ENT(EF_MIPS_PIC, "pic"), 1293 ENUM_ENT(EF_MIPS_CPIC, "cpic"), 1294 ENUM_ENT(EF_MIPS_ABI2, "abi2"), 1295 ENUM_ENT(EF_MIPS_32BITMODE, "32bitmode"), 1296 ENUM_ENT(EF_MIPS_FP64, "fp64"), 1297 ENUM_ENT(EF_MIPS_NAN2008, "nan2008"), 1298 ENUM_ENT(EF_MIPS_ABI_O32, "o32"), 1299 ENUM_ENT(EF_MIPS_ABI_O64, "o64"), 1300 ENUM_ENT(EF_MIPS_ABI_EABI32, "eabi32"), 1301 ENUM_ENT(EF_MIPS_ABI_EABI64, "eabi64"), 1302 ENUM_ENT(EF_MIPS_MACH_3900, "3900"), 1303 ENUM_ENT(EF_MIPS_MACH_4010, "4010"), 1304 ENUM_ENT(EF_MIPS_MACH_4100, "4100"), 1305 ENUM_ENT(EF_MIPS_MACH_4650, "4650"), 1306 ENUM_ENT(EF_MIPS_MACH_4120, "4120"), 1307 ENUM_ENT(EF_MIPS_MACH_4111, "4111"), 1308 ENUM_ENT(EF_MIPS_MACH_SB1, "sb1"), 1309 ENUM_ENT(EF_MIPS_MACH_OCTEON, "octeon"), 1310 ENUM_ENT(EF_MIPS_MACH_XLR, "xlr"), 1311 ENUM_ENT(EF_MIPS_MACH_OCTEON2, "octeon2"), 1312 ENUM_ENT(EF_MIPS_MACH_OCTEON3, "octeon3"), 1313 ENUM_ENT(EF_MIPS_MACH_5400, "5400"), 1314 ENUM_ENT(EF_MIPS_MACH_5900, "5900"), 1315 ENUM_ENT(EF_MIPS_MACH_5500, "5500"), 1316 ENUM_ENT(EF_MIPS_MACH_9000, "9000"), 1317 ENUM_ENT(EF_MIPS_MACH_LS2E, "loongson-2e"), 1318 ENUM_ENT(EF_MIPS_MACH_LS2F, "loongson-2f"), 1319 ENUM_ENT(EF_MIPS_MACH_LS3A, "loongson-3a"), 1320 ENUM_ENT(EF_MIPS_MICROMIPS, "micromips"), 1321 ENUM_ENT(EF_MIPS_ARCH_ASE_M16, "mips16"), 1322 ENUM_ENT(EF_MIPS_ARCH_ASE_MDMX, "mdmx"), 1323 ENUM_ENT(EF_MIPS_ARCH_1, "mips1"), 1324 ENUM_ENT(EF_MIPS_ARCH_2, "mips2"), 1325 ENUM_ENT(EF_MIPS_ARCH_3, "mips3"), 1326 ENUM_ENT(EF_MIPS_ARCH_4, "mips4"), 1327 ENUM_ENT(EF_MIPS_ARCH_5, "mips5"), 1328 ENUM_ENT(EF_MIPS_ARCH_32, "mips32"), 1329 ENUM_ENT(EF_MIPS_ARCH_64, "mips64"), 1330 ENUM_ENT(EF_MIPS_ARCH_32R2, "mips32r2"), 1331 ENUM_ENT(EF_MIPS_ARCH_64R2, "mips64r2"), 1332 ENUM_ENT(EF_MIPS_ARCH_32R6, "mips32r6"), 1333 ENUM_ENT(EF_MIPS_ARCH_64R6, "mips64r6") 1334 }; 1335 1336 static const EnumEntry<unsigned> ElfHeaderAMDGPUFlags[] = { 1337 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_NONE), 1338 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R600), 1339 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R630), 1340 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RS880), 1341 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV670), 1342 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV710), 1343 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV730), 1344 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV770), 1345 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CEDAR), 1346 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CYPRESS), 1347 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_JUNIPER), 1348 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_REDWOOD), 1349 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_SUMO), 1350 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_BARTS), 1351 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAICOS), 1352 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAYMAN), 1353 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_TURKS), 1354 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX600), 1355 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX601), 1356 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX700), 1357 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX701), 1358 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX702), 1359 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX703), 1360 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX704), 1361 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX801), 1362 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX802), 1363 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX803), 1364 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX810), 1365 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX900), 1366 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX902), 1367 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX904), 1368 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX906), 1369 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX909), 1370 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_XNACK), 1371 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_SRAM_ECC) 1372 }; 1373 1374 static const EnumEntry<unsigned> ElfHeaderRISCVFlags[] = { 1375 ENUM_ENT(EF_RISCV_RVC, "RVC"), 1376 ENUM_ENT(EF_RISCV_FLOAT_ABI_SINGLE, "single-float ABI"), 1377 ENUM_ENT(EF_RISCV_FLOAT_ABI_DOUBLE, "double-float ABI"), 1378 ENUM_ENT(EF_RISCV_FLOAT_ABI_QUAD, "quad-float ABI"), 1379 ENUM_ENT(EF_RISCV_RVE, "RVE") 1380 }; 1381 1382 static const EnumEntry<unsigned> ElfSymOtherFlags[] = { 1383 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL), 1384 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN), 1385 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED) 1386 }; 1387 1388 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = { 1389 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1390 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1391 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC), 1392 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS) 1393 }; 1394 1395 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = { 1396 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1397 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1398 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16) 1399 }; 1400 1401 static const char *getElfMipsOptionsOdkType(unsigned Odk) { 1402 switch (Odk) { 1403 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL); 1404 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO); 1405 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS); 1406 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD); 1407 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH); 1408 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL); 1409 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS); 1410 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND); 1411 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR); 1412 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP); 1413 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT); 1414 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE); 1415 default: 1416 return "Unknown"; 1417 } 1418 } 1419 1420 template <typename ELFT> 1421 ELFDumper<ELFT>::ELFDumper(const object::ELFObjectFile<ELFT> *ObjF, 1422 ScopedPrinter &Writer) 1423 : ObjDumper(Writer), ObjF(ObjF) { 1424 SmallVector<const Elf_Phdr *, 4> LoadSegments; 1425 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 1426 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 1427 if (Phdr.p_type == ELF::PT_DYNAMIC) { 1428 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn)); 1429 continue; 1430 } 1431 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0) 1432 continue; 1433 LoadSegments.push_back(&Phdr); 1434 } 1435 1436 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1437 switch (Sec.sh_type) { 1438 case ELF::SHT_SYMTAB: 1439 if (DotSymtabSec != nullptr) 1440 reportError("Multiple SHT_SYMTAB"); 1441 DotSymtabSec = &Sec; 1442 break; 1443 case ELF::SHT_DYNSYM: 1444 if (DynSymRegion.Size) 1445 reportError("Multiple SHT_DYNSYM"); 1446 DynSymRegion = createDRIFrom(&Sec); 1447 // This is only used (if Elf_Shdr present)for naming section in GNU style 1448 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec)); 1449 DynamicStringTable = unwrapOrError(Obj->getStringTableForSymtab(Sec)); 1450 break; 1451 case ELF::SHT_SYMTAB_SHNDX: 1452 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec)); 1453 break; 1454 case ELF::SHT_GNU_versym: 1455 if (dot_gnu_version_sec != nullptr) 1456 reportError("Multiple SHT_GNU_versym"); 1457 dot_gnu_version_sec = &Sec; 1458 break; 1459 case ELF::SHT_GNU_verdef: 1460 if (dot_gnu_version_d_sec != nullptr) 1461 reportError("Multiple SHT_GNU_verdef"); 1462 dot_gnu_version_d_sec = &Sec; 1463 break; 1464 case ELF::SHT_GNU_verneed: 1465 if (dot_gnu_version_r_sec != nullptr) 1466 reportError("Multiple SHT_GNU_verneed"); 1467 dot_gnu_version_r_sec = &Sec; 1468 break; 1469 case ELF::SHT_LLVM_CALL_GRAPH_PROFILE: 1470 if (DotCGProfileSec != nullptr) 1471 reportError("Multiple .llvm.call-graph-profile"); 1472 DotCGProfileSec = &Sec; 1473 break; 1474 case ELF::SHT_LLVM_ADDRSIG: 1475 if (DotAddrsigSec != nullptr) 1476 reportError("Multiple .llvm_addrsig"); 1477 DotAddrsigSec = &Sec; 1478 break; 1479 } 1480 } 1481 1482 parseDynamicTable(LoadSegments); 1483 1484 if (opts::Output == opts::GNU) 1485 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this)); 1486 else 1487 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this)); 1488 } 1489 1490 template <typename ELFT> 1491 void ELFDumper<ELFT>::parseDynamicTable( 1492 ArrayRef<const Elf_Phdr *> LoadSegments) { 1493 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * { 1494 auto MappedAddrOrError = ObjF->getELFFile()->toMappedAddr(VAddr); 1495 if (!MappedAddrOrError) 1496 report_fatal_error(MappedAddrOrError.takeError()); 1497 return MappedAddrOrError.get(); 1498 }; 1499 1500 uint64_t SONameOffset = 0; 1501 const char *StringTableBegin = nullptr; 1502 uint64_t StringTableSize = 0; 1503 for (const Elf_Dyn &Dyn : dynamic_table()) { 1504 switch (Dyn.d_tag) { 1505 case ELF::DT_HASH: 1506 HashTable = 1507 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr())); 1508 break; 1509 case ELF::DT_GNU_HASH: 1510 GnuHashTable = 1511 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr())); 1512 break; 1513 case ELF::DT_STRTAB: 1514 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr()); 1515 break; 1516 case ELF::DT_STRSZ: 1517 StringTableSize = Dyn.getVal(); 1518 break; 1519 case ELF::DT_SYMTAB: 1520 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr()); 1521 DynSymRegion.EntSize = sizeof(Elf_Sym); 1522 break; 1523 case ELF::DT_RELA: 1524 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr()); 1525 break; 1526 case ELF::DT_RELASZ: 1527 DynRelaRegion.Size = Dyn.getVal(); 1528 break; 1529 case ELF::DT_RELAENT: 1530 DynRelaRegion.EntSize = Dyn.getVal(); 1531 break; 1532 case ELF::DT_SONAME: 1533 SONameOffset = Dyn.getVal(); 1534 break; 1535 case ELF::DT_REL: 1536 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1537 break; 1538 case ELF::DT_RELSZ: 1539 DynRelRegion.Size = Dyn.getVal(); 1540 break; 1541 case ELF::DT_RELENT: 1542 DynRelRegion.EntSize = Dyn.getVal(); 1543 break; 1544 case ELF::DT_RELR: 1545 case ELF::DT_ANDROID_RELR: 1546 DynRelrRegion.Addr = toMappedAddr(Dyn.getPtr()); 1547 break; 1548 case ELF::DT_RELRSZ: 1549 case ELF::DT_ANDROID_RELRSZ: 1550 DynRelrRegion.Size = Dyn.getVal(); 1551 break; 1552 case ELF::DT_RELRENT: 1553 case ELF::DT_ANDROID_RELRENT: 1554 DynRelrRegion.EntSize = Dyn.getVal(); 1555 break; 1556 case ELF::DT_PLTREL: 1557 if (Dyn.getVal() == DT_REL) 1558 DynPLTRelRegion.EntSize = sizeof(Elf_Rel); 1559 else if (Dyn.getVal() == DT_RELA) 1560 DynPLTRelRegion.EntSize = sizeof(Elf_Rela); 1561 else 1562 reportError(Twine("unknown DT_PLTREL value of ") + 1563 Twine((uint64_t)Dyn.getVal())); 1564 break; 1565 case ELF::DT_JMPREL: 1566 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1567 break; 1568 case ELF::DT_PLTRELSZ: 1569 DynPLTRelRegion.Size = Dyn.getVal(); 1570 break; 1571 } 1572 } 1573 if (StringTableBegin) 1574 DynamicStringTable = StringRef(StringTableBegin, StringTableSize); 1575 if (SONameOffset) 1576 SOName = getDynamicString(SONameOffset); 1577 } 1578 1579 template <typename ELFT> 1580 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const { 1581 return DynRelRegion.getAsArrayRef<Elf_Rel>(); 1582 } 1583 1584 template <typename ELFT> 1585 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const { 1586 return DynRelaRegion.getAsArrayRef<Elf_Rela>(); 1587 } 1588 1589 template <typename ELFT> 1590 typename ELFDumper<ELFT>::Elf_Relr_Range ELFDumper<ELFT>::dyn_relrs() const { 1591 return DynRelrRegion.getAsArrayRef<Elf_Relr>(); 1592 } 1593 1594 template<class ELFT> 1595 void ELFDumper<ELFT>::printFileHeaders() { 1596 ELFDumperStyle->printFileHeaders(ObjF->getELFFile()); 1597 } 1598 1599 template<class ELFT> 1600 void ELFDumper<ELFT>::printSectionHeaders() { 1601 ELFDumperStyle->printSectionHeaders(ObjF->getELFFile()); 1602 } 1603 1604 template<class ELFT> 1605 void ELFDumper<ELFT>::printRelocations() { 1606 ELFDumperStyle->printRelocations(ObjF->getELFFile()); 1607 } 1608 1609 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() { 1610 ELFDumperStyle->printProgramHeaders(ObjF->getELFFile()); 1611 } 1612 1613 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() { 1614 ELFDumperStyle->printDynamicRelocations(ObjF->getELFFile()); 1615 } 1616 1617 template<class ELFT> 1618 void ELFDumper<ELFT>::printSymbols() { 1619 ELFDumperStyle->printSymbols(ObjF->getELFFile()); 1620 } 1621 1622 template<class ELFT> 1623 void ELFDumper<ELFT>::printDynamicSymbols() { 1624 ELFDumperStyle->printDynamicSymbols(ObjF->getELFFile()); 1625 } 1626 1627 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() { 1628 ELFDumperStyle->printHashHistogram(ObjF->getELFFile()); 1629 } 1630 1631 template <class ELFT> void ELFDumper<ELFT>::printCGProfile() { 1632 ELFDumperStyle->printCGProfile(ObjF->getELFFile()); 1633 } 1634 1635 template <class ELFT> void ELFDumper<ELFT>::printNotes() { 1636 ELFDumperStyle->printNotes(ObjF->getELFFile()); 1637 } 1638 1639 template <class ELFT> void ELFDumper<ELFT>::printELFLinkerOptions() { 1640 ELFDumperStyle->printELFLinkerOptions(ObjF->getELFFile()); 1641 } 1642 1643 static const char *getTypeString(unsigned Arch, uint64_t Type) { 1644 #define DYNAMIC_TAG(n, v) 1645 switch (Arch) { 1646 case EM_HEXAGON: 1647 switch (Type) { 1648 #define HEXAGON_DYNAMIC_TAG(name, value) \ 1649 case DT_##name: \ 1650 return #name; 1651 #include "llvm/BinaryFormat/DynamicTags.def" 1652 #undef HEXAGON_DYNAMIC_TAG 1653 } 1654 break; 1655 1656 case EM_MIPS: 1657 switch (Type) { 1658 #define MIPS_DYNAMIC_TAG(name, value) \ 1659 case DT_##name: \ 1660 return #name; 1661 #include "llvm/BinaryFormat/DynamicTags.def" 1662 #undef MIPS_DYNAMIC_TAG 1663 } 1664 break; 1665 1666 case EM_PPC64: 1667 switch(Type) { 1668 #define PPC64_DYNAMIC_TAG(name, value) \ 1669 case DT_##name: \ 1670 return #name; 1671 #include "llvm/BinaryFormat/DynamicTags.def" 1672 #undef PPC64_DYNAMIC_TAG 1673 } 1674 break; 1675 } 1676 #undef DYNAMIC_TAG 1677 switch (Type) { 1678 // Now handle all dynamic tags except the architecture specific ones 1679 #define MIPS_DYNAMIC_TAG(name, value) 1680 #define HEXAGON_DYNAMIC_TAG(name, value) 1681 #define PPC64_DYNAMIC_TAG(name, value) 1682 // Also ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc. 1683 #define DYNAMIC_TAG_MARKER(name, value) 1684 #define DYNAMIC_TAG(name, value) \ 1685 case DT_##name: \ 1686 return #name; 1687 #include "llvm/BinaryFormat/DynamicTags.def" 1688 #undef DYNAMIC_TAG 1689 #undef MIPS_DYNAMIC_TAG 1690 #undef HEXAGON_DYNAMIC_TAG 1691 #undef PPC64_DYNAMIC_TAG 1692 #undef DYNAMIC_TAG_MARKER 1693 default: return "unknown"; 1694 } 1695 } 1696 1697 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \ 1698 { #enum, prefix##_##enum } 1699 1700 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = { 1701 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN), 1702 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC), 1703 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL), 1704 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW), 1705 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS) 1706 }; 1707 1708 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = { 1709 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW), 1710 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL), 1711 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP), 1712 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE), 1713 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR), 1714 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST), 1715 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN), 1716 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN), 1717 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT), 1718 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS), 1719 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE), 1720 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB), 1721 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP), 1722 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT), 1723 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE), 1724 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE), 1725 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT), 1726 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF), 1727 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS), 1728 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR), 1729 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED), 1730 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC), 1731 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE), 1732 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT), 1733 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON) 1734 }; 1735 1736 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = { 1737 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE), 1738 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART), 1739 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT), 1740 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT), 1741 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE), 1742 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY), 1743 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT), 1744 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS), 1745 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT), 1746 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE), 1747 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD), 1748 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART), 1749 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED), 1750 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD), 1751 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF), 1752 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE) 1753 }; 1754 1755 #undef LLVM_READOBJ_DT_FLAG_ENT 1756 1757 template <typename T, typename TFlag> 1758 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) { 1759 using FlagEntry = EnumEntry<TFlag>; 1760 using FlagVector = SmallVector<FlagEntry, 10>; 1761 FlagVector SetFlags; 1762 1763 for (const auto &Flag : Flags) { 1764 if (Flag.Value == 0) 1765 continue; 1766 1767 if ((Value & Flag.Value) == Flag.Value) 1768 SetFlags.push_back(Flag); 1769 } 1770 1771 for (const auto &Flag : SetFlags) { 1772 OS << Flag.Name << " "; 1773 } 1774 } 1775 1776 template <class ELFT> 1777 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const { 1778 if (Value >= DynamicStringTable.size()) 1779 reportError("Invalid dynamic string table reference"); 1780 return StringRef(DynamicStringTable.data() + Value); 1781 } 1782 1783 static void printLibrary(raw_ostream &OS, const Twine &Tag, const Twine &Name) { 1784 OS << Tag << ": [" << Name << "]"; 1785 } 1786 1787 template <class ELFT> 1788 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { 1789 raw_ostream &OS = W.getOStream(); 1790 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64; 1791 switch (Type) { 1792 case DT_PLTREL: 1793 if (Value == DT_REL) { 1794 OS << "REL"; 1795 break; 1796 } else if (Value == DT_RELA) { 1797 OS << "RELA"; 1798 break; 1799 } 1800 LLVM_FALLTHROUGH; 1801 case DT_PLTGOT: 1802 case DT_HASH: 1803 case DT_STRTAB: 1804 case DT_SYMTAB: 1805 case DT_RELA: 1806 case DT_INIT: 1807 case DT_FINI: 1808 case DT_REL: 1809 case DT_JMPREL: 1810 case DT_INIT_ARRAY: 1811 case DT_FINI_ARRAY: 1812 case DT_PREINIT_ARRAY: 1813 case DT_DEBUG: 1814 case DT_VERDEF: 1815 case DT_VERNEED: 1816 case DT_VERSYM: 1817 case DT_GNU_HASH: 1818 case DT_NULL: 1819 case DT_MIPS_BASE_ADDRESS: 1820 case DT_MIPS_GOTSYM: 1821 case DT_MIPS_RLD_MAP: 1822 case DT_MIPS_RLD_MAP_REL: 1823 case DT_MIPS_PLTGOT: 1824 case DT_MIPS_OPTIONS: 1825 OS << format(ConvChar, Value); 1826 break; 1827 case DT_RELACOUNT: 1828 case DT_RELCOUNT: 1829 case DT_VERDEFNUM: 1830 case DT_VERNEEDNUM: 1831 case DT_MIPS_RLD_VERSION: 1832 case DT_MIPS_LOCAL_GOTNO: 1833 case DT_MIPS_SYMTABNO: 1834 case DT_MIPS_UNREFEXTNO: 1835 OS << Value; 1836 break; 1837 case DT_PLTRELSZ: 1838 case DT_RELASZ: 1839 case DT_RELAENT: 1840 case DT_STRSZ: 1841 case DT_SYMENT: 1842 case DT_RELSZ: 1843 case DT_RELENT: 1844 case DT_INIT_ARRAYSZ: 1845 case DT_FINI_ARRAYSZ: 1846 case DT_PREINIT_ARRAYSZ: 1847 case DT_ANDROID_RELSZ: 1848 case DT_ANDROID_RELASZ: 1849 OS << Value << " (bytes)"; 1850 break; 1851 case DT_NEEDED: 1852 printLibrary(OS, "Shared library", getDynamicString(Value)); 1853 break; 1854 case DT_SONAME: 1855 printLibrary(OS, "Library soname", getDynamicString(Value)); 1856 break; 1857 case DT_AUXILIARY: 1858 printLibrary(OS, "Auxiliary library", getDynamicString(Value)); 1859 break; 1860 case DT_FILTER: 1861 printLibrary(OS, "Filter library", getDynamicString(Value)); 1862 break; 1863 case DT_RPATH: 1864 case DT_RUNPATH: 1865 OS << getDynamicString(Value); 1866 break; 1867 case DT_MIPS_FLAGS: 1868 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS); 1869 break; 1870 case DT_FLAGS: 1871 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS); 1872 break; 1873 case DT_FLAGS_1: 1874 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS); 1875 break; 1876 default: 1877 OS << format(ConvChar, Value); 1878 break; 1879 } 1880 } 1881 1882 template<class ELFT> 1883 void ELFDumper<ELFT>::printUnwindInfo() { 1884 const unsigned Machine = ObjF->getELFFile()->getHeader()->e_machine; 1885 if (Machine == EM_386 || Machine == EM_X86_64) { 1886 DwarfCFIEH::PrinterContext<ELFT> Ctx(W, ObjF); 1887 return Ctx.printUnwindInformation(); 1888 } 1889 W.startLine() << "UnwindInfo not implemented.\n"; 1890 } 1891 1892 namespace { 1893 1894 template <> void ELFDumper<ELF32LE>::printUnwindInfo() { 1895 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile(); 1896 const unsigned Machine = Obj->getHeader()->e_machine; 1897 if (Machine == EM_ARM) { 1898 ARM::EHABI::PrinterContext<ELF32LE> Ctx(W, Obj, DotSymtabSec); 1899 return Ctx.PrintUnwindInformation(); 1900 } 1901 W.startLine() << "UnwindInfo not implemented.\n"; 1902 } 1903 1904 } // end anonymous namespace 1905 1906 template<class ELFT> 1907 void ELFDumper<ELFT>::printDynamicTable() { 1908 auto I = dynamic_table().begin(); 1909 auto E = dynamic_table().end(); 1910 1911 if (I == E) 1912 return; 1913 1914 --E; 1915 while (I != E && E->getTag() == ELF::DT_NULL) 1916 --E; 1917 if (E->getTag() != ELF::DT_NULL) 1918 ++E; 1919 ++E; 1920 1921 ptrdiff_t Total = std::distance(I, E); 1922 if (Total == 0) 1923 return; 1924 1925 raw_ostream &OS = W.getOStream(); 1926 W.startLine() << "DynamicSection [ (" << Total << " entries)\n"; 1927 1928 bool Is64 = ELFT::Is64Bits; 1929 1930 W.startLine() 1931 << " Tag" << (Is64 ? " " : " ") << "Type" 1932 << " " << "Name/Value\n"; 1933 while (I != E) { 1934 const Elf_Dyn &Entry = *I; 1935 uintX_t Tag = Entry.getTag(); 1936 ++I; 1937 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " " 1938 << format("%-21s", getTypeString(ObjF->getELFFile()->getHeader()->e_machine, Tag)); 1939 printValue(Tag, Entry.getVal()); 1940 OS << "\n"; 1941 } 1942 1943 W.startLine() << "]\n"; 1944 } 1945 1946 template<class ELFT> 1947 void ELFDumper<ELFT>::printNeededLibraries() { 1948 ListScope D(W, "NeededLibraries"); 1949 1950 using LibsTy = std::vector<StringRef>; 1951 LibsTy Libs; 1952 1953 for (const auto &Entry : dynamic_table()) 1954 if (Entry.d_tag == ELF::DT_NEEDED) 1955 Libs.push_back(getDynamicString(Entry.d_un.d_val)); 1956 1957 std::stable_sort(Libs.begin(), Libs.end()); 1958 1959 for (const auto &L : Libs) 1960 W.startLine() << L << "\n"; 1961 } 1962 1963 1964 template <typename ELFT> 1965 void ELFDumper<ELFT>::printHashTable() { 1966 DictScope D(W, "HashTable"); 1967 if (!HashTable) 1968 return; 1969 W.printNumber("Num Buckets", HashTable->nbucket); 1970 W.printNumber("Num Chains", HashTable->nchain); 1971 W.printList("Buckets", HashTable->buckets()); 1972 W.printList("Chains", HashTable->chains()); 1973 } 1974 1975 template <typename ELFT> 1976 void ELFDumper<ELFT>::printGnuHashTable() { 1977 DictScope D(W, "GnuHashTable"); 1978 if (!GnuHashTable) 1979 return; 1980 W.printNumber("Num Buckets", GnuHashTable->nbuckets); 1981 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx); 1982 W.printNumber("Num Mask Words", GnuHashTable->maskwords); 1983 W.printNumber("Shift Count", GnuHashTable->shift2); 1984 W.printHexList("Bloom Filter", GnuHashTable->filter()); 1985 W.printList("Buckets", GnuHashTable->buckets()); 1986 Elf_Sym_Range Syms = dynamic_symbols(); 1987 unsigned NumSyms = std::distance(Syms.begin(), Syms.end()); 1988 if (!NumSyms) 1989 reportError("No dynamic symbol section"); 1990 W.printHexList("Values", GnuHashTable->values(NumSyms)); 1991 } 1992 1993 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() { 1994 W.printString("LoadName", SOName); 1995 } 1996 1997 template <class ELFT> 1998 void ELFDumper<ELFT>::printAttributes() { 1999 W.startLine() << "Attributes not implemented.\n"; 2000 } 2001 2002 namespace { 2003 2004 template <> void ELFDumper<ELF32LE>::printAttributes() { 2005 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile(); 2006 if (Obj->getHeader()->e_machine != EM_ARM) { 2007 W.startLine() << "Attributes not implemented.\n"; 2008 return; 2009 } 2010 2011 DictScope BA(W, "BuildAttributes"); 2012 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2013 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES) 2014 continue; 2015 2016 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec)); 2017 if (Contents[0] != ARMBuildAttrs::Format_Version) { 2018 errs() << "unrecognised FormatVersion: 0x" 2019 << Twine::utohexstr(Contents[0]) << '\n'; 2020 continue; 2021 } 2022 2023 W.printHex("FormatVersion", Contents[0]); 2024 if (Contents.size() == 1) 2025 continue; 2026 2027 ARMAttributeParser(&W).Parse(Contents, true); 2028 } 2029 } 2030 2031 template <class ELFT> class MipsGOTParser { 2032 public: 2033 TYPEDEF_ELF_TYPES(ELFT) 2034 using Entry = typename ELFO::Elf_Addr; 2035 using Entries = ArrayRef<Entry>; 2036 2037 const bool IsStatic; 2038 const ELFO * const Obj; 2039 2040 MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, Elf_Sym_Range DynSyms); 2041 2042 bool hasGot() const { return !GotEntries.empty(); } 2043 bool hasPlt() const { return !PltEntries.empty(); } 2044 2045 uint64_t getGp() const; 2046 2047 const Entry *getGotLazyResolver() const; 2048 const Entry *getGotModulePointer() const; 2049 const Entry *getPltLazyResolver() const; 2050 const Entry *getPltModulePointer() const; 2051 2052 Entries getLocalEntries() const; 2053 Entries getGlobalEntries() const; 2054 Entries getOtherEntries() const; 2055 Entries getPltEntries() const; 2056 2057 uint64_t getGotAddress(const Entry * E) const; 2058 int64_t getGotOffset(const Entry * E) const; 2059 const Elf_Sym *getGotSym(const Entry *E) const; 2060 2061 uint64_t getPltAddress(const Entry * E) const; 2062 const Elf_Sym *getPltSym(const Entry *E) const; 2063 2064 StringRef getPltStrTable() const { return PltStrTable; } 2065 2066 private: 2067 const Elf_Shdr *GotSec; 2068 size_t LocalNum; 2069 size_t GlobalNum; 2070 2071 const Elf_Shdr *PltSec; 2072 const Elf_Shdr *PltRelSec; 2073 const Elf_Shdr *PltSymTable; 2074 Elf_Sym_Range GotDynSyms; 2075 StringRef PltStrTable; 2076 2077 Entries GotEntries; 2078 Entries PltEntries; 2079 }; 2080 2081 } // end anonymous namespace 2082 2083 template <class ELFT> 2084 MipsGOTParser<ELFT>::MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, 2085 Elf_Sym_Range DynSyms) 2086 : IsStatic(DynTable.empty()), Obj(Obj), GotSec(nullptr), LocalNum(0), 2087 GlobalNum(0), PltSec(nullptr), PltRelSec(nullptr), PltSymTable(nullptr) { 2088 // See "Global Offset Table" in Chapter 5 in the following document 2089 // for detailed GOT description. 2090 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf 2091 2092 // Find static GOT secton. 2093 if (IsStatic) { 2094 GotSec = findSectionByName(*Obj, ".got"); 2095 if (!GotSec) 2096 reportError("Cannot find .got section"); 2097 2098 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2099 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2100 Content.size() / sizeof(Entry)); 2101 LocalNum = GotEntries.size(); 2102 return; 2103 } 2104 2105 // Lookup dynamic table tags which define GOT/PLT layouts. 2106 Optional<uint64_t> DtPltGot; 2107 Optional<uint64_t> DtLocalGotNum; 2108 Optional<uint64_t> DtGotSym; 2109 Optional<uint64_t> DtMipsPltGot; 2110 Optional<uint64_t> DtJmpRel; 2111 for (const auto &Entry : DynTable) { 2112 switch (Entry.getTag()) { 2113 case ELF::DT_PLTGOT: 2114 DtPltGot = Entry.getVal(); 2115 break; 2116 case ELF::DT_MIPS_LOCAL_GOTNO: 2117 DtLocalGotNum = Entry.getVal(); 2118 break; 2119 case ELF::DT_MIPS_GOTSYM: 2120 DtGotSym = Entry.getVal(); 2121 break; 2122 case ELF::DT_MIPS_PLTGOT: 2123 DtMipsPltGot = Entry.getVal(); 2124 break; 2125 case ELF::DT_JMPREL: 2126 DtJmpRel = Entry.getVal(); 2127 break; 2128 } 2129 } 2130 2131 // Find dynamic GOT section. 2132 if (DtPltGot || DtLocalGotNum || DtGotSym) { 2133 if (!DtPltGot) 2134 report_fatal_error("Cannot find PLTGOT dynamic table tag."); 2135 if (!DtLocalGotNum) 2136 report_fatal_error("Cannot find MIPS_LOCAL_GOTNO dynamic table tag."); 2137 if (!DtGotSym) 2138 report_fatal_error("Cannot find MIPS_GOTSYM dynamic table tag."); 2139 2140 size_t DynSymTotal = DynSyms.size(); 2141 if (*DtGotSym > DynSymTotal) 2142 reportError("MIPS_GOTSYM exceeds a number of dynamic symbols"); 2143 2144 GotSec = findNotEmptySectionByAddress(Obj, *DtPltGot); 2145 if (!GotSec) 2146 reportError("There is no not empty GOT section at 0x" + 2147 Twine::utohexstr(*DtPltGot)); 2148 2149 LocalNum = *DtLocalGotNum; 2150 GlobalNum = DynSymTotal - *DtGotSym; 2151 2152 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2153 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2154 Content.size() / sizeof(Entry)); 2155 GotDynSyms = DynSyms.drop_front(*DtGotSym); 2156 } 2157 2158 // Find PLT section. 2159 if (DtMipsPltGot || DtJmpRel) { 2160 if (!DtMipsPltGot) 2161 report_fatal_error("Cannot find MIPS_PLTGOT dynamic table tag."); 2162 if (!DtJmpRel) 2163 report_fatal_error("Cannot find JMPREL dynamic table tag."); 2164 2165 PltSec = findNotEmptySectionByAddress(Obj, *DtMipsPltGot); 2166 if (!PltSec) 2167 report_fatal_error("There is no not empty PLTGOT section at 0x " + 2168 Twine::utohexstr(*DtMipsPltGot)); 2169 2170 PltRelSec = findNotEmptySectionByAddress(Obj, *DtJmpRel); 2171 if (!PltRelSec) 2172 report_fatal_error("There is no not empty RELPLT section at 0x" + 2173 Twine::utohexstr(*DtJmpRel)); 2174 2175 ArrayRef<uint8_t> PltContent = 2176 unwrapOrError(Obj->getSectionContents(PltSec)); 2177 PltEntries = Entries(reinterpret_cast<const Entry *>(PltContent.data()), 2178 PltContent.size() / sizeof(Entry)); 2179 2180 PltSymTable = unwrapOrError(Obj->getSection(PltRelSec->sh_link)); 2181 PltStrTable = unwrapOrError(Obj->getStringTableForSymtab(*PltSymTable)); 2182 } 2183 } 2184 2185 template <class ELFT> uint64_t MipsGOTParser<ELFT>::getGp() const { 2186 return GotSec->sh_addr + 0x7ff0; 2187 } 2188 2189 template <class ELFT> 2190 const typename MipsGOTParser<ELFT>::Entry * 2191 MipsGOTParser<ELFT>::getGotLazyResolver() const { 2192 return LocalNum > 0 ? &GotEntries[0] : nullptr; 2193 } 2194 2195 template <class ELFT> 2196 const typename MipsGOTParser<ELFT>::Entry * 2197 MipsGOTParser<ELFT>::getGotModulePointer() const { 2198 if (LocalNum < 2) 2199 return nullptr; 2200 const Entry &E = GotEntries[1]; 2201 if ((E >> (sizeof(Entry) * 8 - 1)) == 0) 2202 return nullptr; 2203 return &E; 2204 } 2205 2206 template <class ELFT> 2207 typename MipsGOTParser<ELFT>::Entries 2208 MipsGOTParser<ELFT>::getLocalEntries() const { 2209 size_t Skip = getGotModulePointer() ? 2 : 1; 2210 if (LocalNum - Skip <= 0) 2211 return Entries(); 2212 return GotEntries.slice(Skip, LocalNum - Skip); 2213 } 2214 2215 template <class ELFT> 2216 typename MipsGOTParser<ELFT>::Entries 2217 MipsGOTParser<ELFT>::getGlobalEntries() const { 2218 if (GlobalNum == 0) 2219 return Entries(); 2220 return GotEntries.slice(LocalNum, GlobalNum); 2221 } 2222 2223 template <class ELFT> 2224 typename MipsGOTParser<ELFT>::Entries 2225 MipsGOTParser<ELFT>::getOtherEntries() const { 2226 size_t OtherNum = GotEntries.size() - LocalNum - GlobalNum; 2227 if (OtherNum == 0) 2228 return Entries(); 2229 return GotEntries.slice(LocalNum + GlobalNum, OtherNum); 2230 } 2231 2232 template <class ELFT> 2233 uint64_t MipsGOTParser<ELFT>::getGotAddress(const Entry *E) const { 2234 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2235 return GotSec->sh_addr + Offset; 2236 } 2237 2238 template <class ELFT> 2239 int64_t MipsGOTParser<ELFT>::getGotOffset(const Entry *E) const { 2240 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2241 return Offset - 0x7ff0; 2242 } 2243 2244 template <class ELFT> 2245 const typename MipsGOTParser<ELFT>::Elf_Sym * 2246 MipsGOTParser<ELFT>::getGotSym(const Entry *E) const { 2247 int64_t Offset = std::distance(GotEntries.data(), E); 2248 return &GotDynSyms[Offset - LocalNum]; 2249 } 2250 2251 template <class ELFT> 2252 const typename MipsGOTParser<ELFT>::Entry * 2253 MipsGOTParser<ELFT>::getPltLazyResolver() const { 2254 return PltEntries.empty() ? nullptr : &PltEntries[0]; 2255 } 2256 2257 template <class ELFT> 2258 const typename MipsGOTParser<ELFT>::Entry * 2259 MipsGOTParser<ELFT>::getPltModulePointer() const { 2260 return PltEntries.size() < 2 ? nullptr : &PltEntries[1]; 2261 } 2262 2263 template <class ELFT> 2264 typename MipsGOTParser<ELFT>::Entries 2265 MipsGOTParser<ELFT>::getPltEntries() const { 2266 if (PltEntries.size() <= 2) 2267 return Entries(); 2268 return PltEntries.slice(2, PltEntries.size() - 2); 2269 } 2270 2271 template <class ELFT> 2272 uint64_t MipsGOTParser<ELFT>::getPltAddress(const Entry *E) const { 2273 int64_t Offset = std::distance(PltEntries.data(), E) * sizeof(Entry); 2274 return PltSec->sh_addr + Offset; 2275 } 2276 2277 template <class ELFT> 2278 const typename MipsGOTParser<ELFT>::Elf_Sym * 2279 MipsGOTParser<ELFT>::getPltSym(const Entry *E) const { 2280 int64_t Offset = std::distance(getPltEntries().data(), E); 2281 if (PltRelSec->sh_type == ELF::SHT_REL) { 2282 Elf_Rel_Range Rels = unwrapOrError(Obj->rels(PltRelSec)); 2283 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2284 } else { 2285 Elf_Rela_Range Rels = unwrapOrError(Obj->relas(PltRelSec)); 2286 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2287 } 2288 } 2289 2290 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() { 2291 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2292 if (Obj->getHeader()->e_machine != EM_MIPS) 2293 reportError("MIPS PLT GOT is available for MIPS targets only"); 2294 2295 MipsGOTParser<ELFT> Parser(Obj, dynamic_table(), dynamic_symbols()); 2296 if (Parser.hasGot()) 2297 ELFDumperStyle->printMipsGOT(Parser); 2298 if (Parser.hasPlt()) 2299 ELFDumperStyle->printMipsPLT(Parser); 2300 } 2301 2302 static const EnumEntry<unsigned> ElfMipsISAExtType[] = { 2303 {"None", Mips::AFL_EXT_NONE}, 2304 {"Broadcom SB-1", Mips::AFL_EXT_SB1}, 2305 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON}, 2306 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2}, 2307 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP}, 2308 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3}, 2309 {"LSI R4010", Mips::AFL_EXT_4010}, 2310 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E}, 2311 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F}, 2312 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A}, 2313 {"MIPS R4650", Mips::AFL_EXT_4650}, 2314 {"MIPS R5900", Mips::AFL_EXT_5900}, 2315 {"MIPS R10000", Mips::AFL_EXT_10000}, 2316 {"NEC VR4100", Mips::AFL_EXT_4100}, 2317 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111}, 2318 {"NEC VR4120", Mips::AFL_EXT_4120}, 2319 {"NEC VR5400", Mips::AFL_EXT_5400}, 2320 {"NEC VR5500", Mips::AFL_EXT_5500}, 2321 {"RMI Xlr", Mips::AFL_EXT_XLR}, 2322 {"Toshiba R3900", Mips::AFL_EXT_3900} 2323 }; 2324 2325 static const EnumEntry<unsigned> ElfMipsASEFlags[] = { 2326 {"DSP", Mips::AFL_ASE_DSP}, 2327 {"DSPR2", Mips::AFL_ASE_DSPR2}, 2328 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA}, 2329 {"MCU", Mips::AFL_ASE_MCU}, 2330 {"MDMX", Mips::AFL_ASE_MDMX}, 2331 {"MIPS-3D", Mips::AFL_ASE_MIPS3D}, 2332 {"MT", Mips::AFL_ASE_MT}, 2333 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS}, 2334 {"VZ", Mips::AFL_ASE_VIRT}, 2335 {"MSA", Mips::AFL_ASE_MSA}, 2336 {"MIPS16", Mips::AFL_ASE_MIPS16}, 2337 {"microMIPS", Mips::AFL_ASE_MICROMIPS}, 2338 {"XPA", Mips::AFL_ASE_XPA}, 2339 {"CRC", Mips::AFL_ASE_CRC}, 2340 {"GINV", Mips::AFL_ASE_GINV}, 2341 }; 2342 2343 static const EnumEntry<unsigned> ElfMipsFpABIType[] = { 2344 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY}, 2345 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE}, 2346 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE}, 2347 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT}, 2348 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)", 2349 Mips::Val_GNU_MIPS_ABI_FP_OLD_64}, 2350 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX}, 2351 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64}, 2352 {"Hard float compat (32-bit CPU, 64-bit FPU)", 2353 Mips::Val_GNU_MIPS_ABI_FP_64A} 2354 }; 2355 2356 static const EnumEntry<unsigned> ElfMipsFlags1[] { 2357 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG}, 2358 }; 2359 2360 static int getMipsRegisterSize(uint8_t Flag) { 2361 switch (Flag) { 2362 case Mips::AFL_REG_NONE: 2363 return 0; 2364 case Mips::AFL_REG_32: 2365 return 32; 2366 case Mips::AFL_REG_64: 2367 return 64; 2368 case Mips::AFL_REG_128: 2369 return 128; 2370 default: 2371 return -1; 2372 } 2373 } 2374 2375 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { 2376 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2377 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags"); 2378 if (!Shdr) { 2379 W.startLine() << "There is no .MIPS.abiflags section in the file.\n"; 2380 return; 2381 } 2382 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2383 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) { 2384 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n"; 2385 return; 2386 } 2387 2388 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data()); 2389 2390 raw_ostream &OS = W.getOStream(); 2391 DictScope GS(W, "MIPS ABI Flags"); 2392 2393 W.printNumber("Version", Flags->version); 2394 W.startLine() << "ISA: "; 2395 if (Flags->isa_rev <= 1) 2396 OS << format("MIPS%u", Flags->isa_level); 2397 else 2398 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev); 2399 OS << "\n"; 2400 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType)); 2401 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags)); 2402 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType)); 2403 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size)); 2404 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size)); 2405 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size)); 2406 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1)); 2407 W.printHex("Flags 2", Flags->flags2); 2408 } 2409 2410 template <class ELFT> 2411 static void printMipsReginfoData(ScopedPrinter &W, 2412 const Elf_Mips_RegInfo<ELFT> &Reginfo) { 2413 W.printHex("GP", Reginfo.ri_gp_value); 2414 W.printHex("General Mask", Reginfo.ri_gprmask); 2415 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]); 2416 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]); 2417 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]); 2418 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]); 2419 } 2420 2421 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() { 2422 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2423 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo"); 2424 if (!Shdr) { 2425 W.startLine() << "There is no .reginfo section in the file.\n"; 2426 return; 2427 } 2428 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2429 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) { 2430 W.startLine() << "The .reginfo section has a wrong size.\n"; 2431 return; 2432 } 2433 2434 DictScope GS(W, "MIPS RegInfo"); 2435 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data()); 2436 printMipsReginfoData(W, *Reginfo); 2437 } 2438 2439 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() { 2440 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2441 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options"); 2442 if (!Shdr) { 2443 W.startLine() << "There is no .MIPS.options section in the file.\n"; 2444 return; 2445 } 2446 2447 DictScope GS(W, "MIPS Options"); 2448 2449 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2450 while (!Sec.empty()) { 2451 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) { 2452 W.startLine() << "The .MIPS.options section has a wrong size.\n"; 2453 return; 2454 } 2455 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data()); 2456 DictScope GS(W, getElfMipsOptionsOdkType(O->kind)); 2457 switch (O->kind) { 2458 case ODK_REGINFO: 2459 printMipsReginfoData(W, O->getRegInfo()); 2460 break; 2461 default: 2462 W.startLine() << "Unsupported MIPS options tag.\n"; 2463 break; 2464 } 2465 Sec = Sec.slice(O->size); 2466 } 2467 } 2468 2469 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const { 2470 const ELFFile<ELFT> *Obj = ObjF->getELFFile(); 2471 const Elf_Shdr *StackMapSection = nullptr; 2472 for (const auto &Sec : unwrapOrError(Obj->sections())) { 2473 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2474 if (Name == ".llvm_stackmaps") { 2475 StackMapSection = &Sec; 2476 break; 2477 } 2478 } 2479 2480 if (!StackMapSection) 2481 return; 2482 2483 ArrayRef<uint8_t> StackMapContentsArray = 2484 unwrapOrError(Obj->getSectionContents(StackMapSection)); 2485 2486 prettyPrintStackMap( 2487 W, StackMapV2Parser<ELFT::TargetEndianness>(StackMapContentsArray)); 2488 } 2489 2490 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() { 2491 ELFDumperStyle->printGroupSections(ObjF->getELFFile()); 2492 } 2493 2494 template <class ELFT> void ELFDumper<ELFT>::printAddrsig() { 2495 ELFDumperStyle->printAddrsig(ObjF->getELFFile()); 2496 } 2497 2498 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1, 2499 StringRef Str2) { 2500 OS.PadToColumn(2u); 2501 OS << Str1; 2502 OS.PadToColumn(37u); 2503 OS << Str2 << "\n"; 2504 OS.flush(); 2505 } 2506 2507 template <class ELFT> 2508 static std::string getSectionHeadersNumString(const ELFFile<ELFT> *Obj) { 2509 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2510 if (ElfHeader->e_shnum != 0) 2511 return to_string(ElfHeader->e_shnum); 2512 2513 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2514 if (Arr.empty()) 2515 return "0"; 2516 return "0 (" + to_string(Arr[0].sh_size) + ")"; 2517 } 2518 2519 template <class ELFT> 2520 static std::string getSectionHeaderTableIndexString(const ELFFile<ELFT> *Obj) { 2521 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2522 if (ElfHeader->e_shstrndx != SHN_XINDEX) 2523 return to_string(ElfHeader->e_shstrndx); 2524 2525 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2526 if (Arr.empty()) 2527 return "65535 (corrupt: out of range)"; 2528 return to_string(ElfHeader->e_shstrndx) + " (" + to_string(Arr[0].sh_link) + ")"; 2529 } 2530 2531 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 2532 const Elf_Ehdr *e = Obj->getHeader(); 2533 OS << "ELF Header:\n"; 2534 OS << " Magic: "; 2535 std::string Str; 2536 for (int i = 0; i < ELF::EI_NIDENT; i++) 2537 OS << format(" %02x", static_cast<int>(e->e_ident[i])); 2538 OS << "\n"; 2539 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 2540 printFields(OS, "Class:", Str); 2541 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding)); 2542 printFields(OS, "Data:", Str); 2543 OS.PadToColumn(2u); 2544 OS << "Version:"; 2545 OS.PadToColumn(37u); 2546 OS << to_hexString(e->e_ident[ELF::EI_VERSION]); 2547 if (e->e_version == ELF::EV_CURRENT) 2548 OS << " (current)"; 2549 OS << "\n"; 2550 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI)); 2551 printFields(OS, "OS/ABI:", Str); 2552 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]); 2553 printFields(OS, "ABI Version:", Str); 2554 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType)); 2555 printFields(OS, "Type:", Str); 2556 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType)); 2557 printFields(OS, "Machine:", Str); 2558 Str = "0x" + to_hexString(e->e_version); 2559 printFields(OS, "Version:", Str); 2560 Str = "0x" + to_hexString(e->e_entry); 2561 printFields(OS, "Entry point address:", Str); 2562 Str = to_string(e->e_phoff) + " (bytes into file)"; 2563 printFields(OS, "Start of program headers:", Str); 2564 Str = to_string(e->e_shoff) + " (bytes into file)"; 2565 printFields(OS, "Start of section headers:", Str); 2566 std::string ElfFlags; 2567 if (e->e_machine == EM_MIPS) 2568 ElfFlags = 2569 printFlags(e->e_flags, makeArrayRef(ElfHeaderMipsFlags), 2570 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 2571 unsigned(ELF::EF_MIPS_MACH)); 2572 else if (e->e_machine == EM_RISCV) 2573 ElfFlags = printFlags(e->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); 2574 Str = "0x" + to_hexString(e->e_flags); 2575 if (!ElfFlags.empty()) 2576 Str = Str + ", " + ElfFlags; 2577 printFields(OS, "Flags:", Str); 2578 Str = to_string(e->e_ehsize) + " (bytes)"; 2579 printFields(OS, "Size of this header:", Str); 2580 Str = to_string(e->e_phentsize) + " (bytes)"; 2581 printFields(OS, "Size of program headers:", Str); 2582 Str = to_string(e->e_phnum); 2583 printFields(OS, "Number of program headers:", Str); 2584 Str = to_string(e->e_shentsize) + " (bytes)"; 2585 printFields(OS, "Size of section headers:", Str); 2586 Str = getSectionHeadersNumString(Obj); 2587 printFields(OS, "Number of section headers:", Str); 2588 Str = getSectionHeaderTableIndexString(Obj); 2589 printFields(OS, "Section header string table index:", Str); 2590 } 2591 2592 namespace { 2593 struct GroupMember { 2594 StringRef Name; 2595 uint64_t Index; 2596 }; 2597 2598 struct GroupSection { 2599 StringRef Name; 2600 StringRef Signature; 2601 uint64_t ShName; 2602 uint64_t Index; 2603 uint32_t Link; 2604 uint32_t Info; 2605 uint32_t Type; 2606 std::vector<GroupMember> Members; 2607 }; 2608 2609 template <class ELFT> 2610 std::vector<GroupSection> getGroups(const ELFFile<ELFT> *Obj) { 2611 using Elf_Shdr = typename ELFT::Shdr; 2612 using Elf_Sym = typename ELFT::Sym; 2613 using Elf_Word = typename ELFT::Word; 2614 2615 std::vector<GroupSection> Ret; 2616 uint64_t I = 0; 2617 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2618 ++I; 2619 if (Sec.sh_type != ELF::SHT_GROUP) 2620 continue; 2621 2622 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2623 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 2624 const Elf_Sym *Sym = 2625 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 2626 auto Data = 2627 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 2628 2629 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2630 StringRef Signature = StrTable.data() + Sym->st_name; 2631 Ret.push_back({Name, 2632 Signature, 2633 Sec.sh_name, 2634 I - 1, 2635 Sec.sh_link, 2636 Sec.sh_info, 2637 Data[0], 2638 {}}); 2639 2640 std::vector<GroupMember> &GM = Ret.back().Members; 2641 for (uint32_t Ndx : Data.slice(1)) { 2642 auto Sec = unwrapOrError(Obj->getSection(Ndx)); 2643 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 2644 GM.push_back({Name, Ndx}); 2645 } 2646 } 2647 return Ret; 2648 } 2649 2650 DenseMap<uint64_t, const GroupSection *> 2651 mapSectionsToGroups(ArrayRef<GroupSection> Groups) { 2652 DenseMap<uint64_t, const GroupSection *> Ret; 2653 for (const GroupSection &G : Groups) 2654 for (const GroupMember &GM : G.Members) 2655 Ret.insert({GM.Index, &G}); 2656 return Ret; 2657 } 2658 2659 } // namespace 2660 2661 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) { 2662 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 2663 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 2664 for (const GroupSection &G : V) { 2665 OS << "\n" 2666 << getGroupType(G.Type) << " group section [" 2667 << format_decimal(G.Index, 5) << "] `" << G.Name << "' [" << G.Signature 2668 << "] contains " << G.Members.size() << " sections:\n" 2669 << " [Index] Name\n"; 2670 for (const GroupMember &GM : G.Members) { 2671 const GroupSection *MainGroup = Map[GM.Index]; 2672 if (MainGroup != &G) { 2673 OS.flush(); 2674 errs() << "Error: section [" << format_decimal(GM.Index, 5) 2675 << "] in group section [" << format_decimal(G.Index, 5) 2676 << "] already in group section [" 2677 << format_decimal(MainGroup->Index, 5) << "]"; 2678 errs().flush(); 2679 continue; 2680 } 2681 OS << " [" << format_decimal(GM.Index, 5) << "] " << GM.Name << "\n"; 2682 } 2683 } 2684 2685 if (V.empty()) 2686 OS << "There are no section groups in this file.\n"; 2687 } 2688 2689 template <class ELFT> 2690 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 2691 const Elf_Rela &R, bool IsRela) { 2692 std::string Offset, Info, Addend, Value; 2693 SmallString<32> RelocName; 2694 StringRef TargetName; 2695 const Elf_Sym *Sym = nullptr; 2696 unsigned Width = ELFT::Is64Bits ? 16 : 8; 2697 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 2698 2699 // First two fields are bit width dependent. The rest of them are after are 2700 // fixed width. 2701 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 2702 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 2703 Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab)); 2704 if (Sym && Sym->getType() == ELF::STT_SECTION) { 2705 const Elf_Shdr *Sec = unwrapOrError( 2706 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 2707 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 2708 } else if (Sym) { 2709 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 2710 TargetName = unwrapOrError(Sym->getName(StrTable)); 2711 } 2712 2713 if (Sym && IsRela) { 2714 if (R.r_addend < 0) 2715 Addend = " - "; 2716 else 2717 Addend = " + "; 2718 } 2719 2720 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 2721 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 2722 2723 int64_t RelAddend = R.r_addend; 2724 if (IsRela) 2725 Addend += to_hexString(std::abs(RelAddend), false); 2726 2727 if (Sym) 2728 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 2729 2730 Fields[0].Str = Offset; 2731 Fields[1].Str = Info; 2732 Fields[2].Str = RelocName; 2733 Fields[3].Str = Value; 2734 Fields[4].Str = TargetName; 2735 for (auto &field : Fields) 2736 printField(field); 2737 OS << Addend; 2738 OS << "\n"; 2739 } 2740 2741 template <class ELFT> void GNUStyle<ELFT>::printRelocHeader(unsigned SType) { 2742 bool IsRela = SType == ELF::SHT_RELA || SType == ELF::SHT_ANDROID_RELA; 2743 bool IsRelr = SType == ELF::SHT_RELR || SType == ELF::SHT_ANDROID_RELR; 2744 if (ELFT::Is64Bits) 2745 OS << " "; 2746 else 2747 OS << " "; 2748 if (IsRelr && opts::RawRelr) 2749 OS << "Data "; 2750 else 2751 OS << "Offset"; 2752 if (ELFT::Is64Bits) 2753 OS << " Info Type" 2754 << " Symbol's Value Symbol's Name"; 2755 else 2756 OS << " Info Type Sym. Value Symbol's Name"; 2757 if (IsRela) 2758 OS << " + Addend"; 2759 OS << "\n"; 2760 } 2761 2762 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) { 2763 bool HasRelocSections = false; 2764 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2765 if (Sec.sh_type != ELF::SHT_REL && 2766 Sec.sh_type != ELF::SHT_RELA && 2767 Sec.sh_type != ELF::SHT_RELR && 2768 Sec.sh_type != ELF::SHT_ANDROID_REL && 2769 Sec.sh_type != ELF::SHT_ANDROID_RELA && 2770 Sec.sh_type != ELF::SHT_ANDROID_RELR) 2771 continue; 2772 HasRelocSections = true; 2773 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2774 unsigned Entries = Sec.getEntityCount(); 2775 std::vector<Elf_Rela> AndroidRelas; 2776 if (Sec.sh_type == ELF::SHT_ANDROID_REL || 2777 Sec.sh_type == ELF::SHT_ANDROID_RELA) { 2778 // Android's packed relocation section needs to be unpacked first 2779 // to get the actual number of entries. 2780 AndroidRelas = unwrapOrError(Obj->android_relas(&Sec)); 2781 Entries = AndroidRelas.size(); 2782 } 2783 std::vector<Elf_Rela> RelrRelas; 2784 if (!opts::RawRelr && (Sec.sh_type == ELF::SHT_RELR || 2785 Sec.sh_type == ELF::SHT_ANDROID_RELR)) { 2786 // .relr.dyn relative relocation section needs to be unpacked first 2787 // to get the actual number of entries. 2788 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(&Sec)); 2789 RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 2790 Entries = RelrRelas.size(); 2791 } 2792 uintX_t Offset = Sec.sh_offset; 2793 OS << "\nRelocation section '" << Name << "' at offset 0x" 2794 << to_hexString(Offset, false) << " contains " << Entries 2795 << " entries:\n"; 2796 printRelocHeader(Sec.sh_type); 2797 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2798 switch (Sec.sh_type) { 2799 case ELF::SHT_REL: 2800 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) { 2801 Elf_Rela Rela; 2802 Rela.r_offset = R.r_offset; 2803 Rela.r_info = R.r_info; 2804 Rela.r_addend = 0; 2805 printRelocation(Obj, SymTab, Rela, false); 2806 } 2807 break; 2808 case ELF::SHT_RELA: 2809 for (const auto &R : unwrapOrError(Obj->relas(&Sec))) 2810 printRelocation(Obj, SymTab, R, true); 2811 break; 2812 case ELF::SHT_RELR: 2813 case ELF::SHT_ANDROID_RELR: 2814 if (opts::RawRelr) 2815 for (const auto &R : unwrapOrError(Obj->relrs(&Sec))) 2816 OS << to_string(format_hex_no_prefix(R, ELFT::Is64Bits ? 16 : 8)) 2817 << "\n"; 2818 else 2819 for (const auto &R : RelrRelas) 2820 printRelocation(Obj, SymTab, R, false); 2821 break; 2822 case ELF::SHT_ANDROID_REL: 2823 case ELF::SHT_ANDROID_RELA: 2824 for (const auto &R : AndroidRelas) 2825 printRelocation(Obj, SymTab, R, Sec.sh_type == ELF::SHT_ANDROID_RELA); 2826 break; 2827 } 2828 } 2829 if (!HasRelocSections) 2830 OS << "\nThere are no relocations in this file.\n"; 2831 } 2832 2833 std::string getSectionTypeString(unsigned Arch, unsigned Type) { 2834 using namespace ELF; 2835 2836 switch (Arch) { 2837 case EM_ARM: 2838 switch (Type) { 2839 case SHT_ARM_EXIDX: 2840 return "ARM_EXIDX"; 2841 case SHT_ARM_PREEMPTMAP: 2842 return "ARM_PREEMPTMAP"; 2843 case SHT_ARM_ATTRIBUTES: 2844 return "ARM_ATTRIBUTES"; 2845 case SHT_ARM_DEBUGOVERLAY: 2846 return "ARM_DEBUGOVERLAY"; 2847 case SHT_ARM_OVERLAYSECTION: 2848 return "ARM_OVERLAYSECTION"; 2849 } 2850 break; 2851 case EM_X86_64: 2852 switch (Type) { 2853 case SHT_X86_64_UNWIND: 2854 return "X86_64_UNWIND"; 2855 } 2856 break; 2857 case EM_MIPS: 2858 case EM_MIPS_RS3_LE: 2859 switch (Type) { 2860 case SHT_MIPS_REGINFO: 2861 return "MIPS_REGINFO"; 2862 case SHT_MIPS_OPTIONS: 2863 return "MIPS_OPTIONS"; 2864 case SHT_MIPS_ABIFLAGS: 2865 return "MIPS_ABIFLAGS"; 2866 case SHT_MIPS_DWARF: 2867 return "SHT_MIPS_DWARF"; 2868 } 2869 break; 2870 } 2871 switch (Type) { 2872 case SHT_NULL: 2873 return "NULL"; 2874 case SHT_PROGBITS: 2875 return "PROGBITS"; 2876 case SHT_SYMTAB: 2877 return "SYMTAB"; 2878 case SHT_STRTAB: 2879 return "STRTAB"; 2880 case SHT_RELA: 2881 return "RELA"; 2882 case SHT_HASH: 2883 return "HASH"; 2884 case SHT_DYNAMIC: 2885 return "DYNAMIC"; 2886 case SHT_NOTE: 2887 return "NOTE"; 2888 case SHT_NOBITS: 2889 return "NOBITS"; 2890 case SHT_REL: 2891 return "REL"; 2892 case SHT_SHLIB: 2893 return "SHLIB"; 2894 case SHT_DYNSYM: 2895 return "DYNSYM"; 2896 case SHT_INIT_ARRAY: 2897 return "INIT_ARRAY"; 2898 case SHT_FINI_ARRAY: 2899 return "FINI_ARRAY"; 2900 case SHT_PREINIT_ARRAY: 2901 return "PREINIT_ARRAY"; 2902 case SHT_GROUP: 2903 return "GROUP"; 2904 case SHT_SYMTAB_SHNDX: 2905 return "SYMTAB SECTION INDICES"; 2906 case SHT_RELR: 2907 case SHT_ANDROID_RELR: 2908 return "RELR"; 2909 case SHT_LLVM_ODRTAB: 2910 return "LLVM_ODRTAB"; 2911 case SHT_LLVM_LINKER_OPTIONS: 2912 return "LLVM_LINKER_OPTIONS"; 2913 case SHT_LLVM_CALL_GRAPH_PROFILE: 2914 return "LLVM_CALL_GRAPH_PROFILE"; 2915 case SHT_LLVM_ADDRSIG: 2916 return "LLVM_ADDRSIG"; 2917 // FIXME: Parse processor specific GNU attributes 2918 case SHT_GNU_ATTRIBUTES: 2919 return "ATTRIBUTES"; 2920 case SHT_GNU_HASH: 2921 return "GNU_HASH"; 2922 case SHT_GNU_verdef: 2923 return "VERDEF"; 2924 case SHT_GNU_verneed: 2925 return "VERNEED"; 2926 case SHT_GNU_versym: 2927 return "VERSYM"; 2928 default: 2929 return ""; 2930 } 2931 return ""; 2932 } 2933 2934 template <class ELFT> 2935 void GNUStyle<ELFT>::printSectionHeaders(const ELFO *Obj) { 2936 size_t SectionIndex = 0; 2937 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize, 2938 Alignment; 2939 unsigned Bias; 2940 unsigned Width; 2941 2942 if (ELFT::Is64Bits) { 2943 Bias = 0; 2944 Width = 16; 2945 } else { 2946 Bias = 8; 2947 Width = 8; 2948 } 2949 2950 ArrayRef<Elf_Shdr> Sections = unwrapOrError(Obj->sections()); 2951 OS << "There are " << to_string(Sections.size()) 2952 << " section headers, starting at offset " 2953 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n"; 2954 OS << "Section Headers:\n"; 2955 Field Fields[11] = {{"[Nr]", 2}, 2956 {"Name", 7}, 2957 {"Type", 25}, 2958 {"Address", 41}, 2959 {"Off", 58 - Bias}, 2960 {"Size", 65 - Bias}, 2961 {"ES", 72 - Bias}, 2962 {"Flg", 75 - Bias}, 2963 {"Lk", 79 - Bias}, 2964 {"Inf", 82 - Bias}, 2965 {"Al", 86 - Bias}}; 2966 for (auto &f : Fields) 2967 printField(f); 2968 OS << "\n"; 2969 2970 for (const Elf_Shdr &Sec : Sections) { 2971 Number = to_string(SectionIndex); 2972 Fields[0].Str = Number; 2973 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec)); 2974 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type); 2975 Fields[2].Str = Type; 2976 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width)); 2977 Fields[3].Str = Address; 2978 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6)); 2979 Fields[4].Str = Offset; 2980 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6)); 2981 Fields[5].Str = Size; 2982 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2)); 2983 Fields[6].Str = EntrySize; 2984 Flags = getGNUFlags(Sec.sh_flags); 2985 Fields[7].Str = Flags; 2986 Link = to_string(Sec.sh_link); 2987 Fields[8].Str = Link; 2988 Info = to_string(Sec.sh_info); 2989 Fields[9].Str = Info; 2990 Alignment = to_string(Sec.sh_addralign); 2991 Fields[10].Str = Alignment; 2992 OS.PadToColumn(Fields[0].Column); 2993 OS << "[" << right_justify(Fields[0].Str, 2) << "]"; 2994 for (int i = 1; i < 7; i++) 2995 printField(Fields[i]); 2996 OS.PadToColumn(Fields[7].Column); 2997 OS << right_justify(Fields[7].Str, 3); 2998 OS.PadToColumn(Fields[8].Column); 2999 OS << right_justify(Fields[8].Str, 2); 3000 OS.PadToColumn(Fields[9].Column); 3001 OS << right_justify(Fields[9].Str, 3); 3002 OS.PadToColumn(Fields[10].Column); 3003 OS << right_justify(Fields[10].Str, 2); 3004 OS << "\n"; 3005 ++SectionIndex; 3006 } 3007 OS << "Key to Flags:\n" 3008 << " W (write), A (alloc), X (execute), M (merge), S (strings), l " 3009 "(large)\n" 3010 << " I (info), L (link order), G (group), T (TLS), E (exclude),\ 3011 x (unknown)\n" 3012 << " O (extra OS processing required) o (OS specific),\ 3013 p (processor specific)\n"; 3014 } 3015 3016 template <class ELFT> 3017 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name, 3018 size_t Entries) { 3019 if (!Name.empty()) 3020 OS << "\nSymbol table '" << Name << "' contains " << Entries 3021 << " entries:\n"; 3022 else 3023 OS << "\n Symbol table for image:\n"; 3024 3025 if (ELFT::Is64Bits) 3026 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 3027 else 3028 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 3029 } 3030 3031 template <class ELFT> 3032 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj, 3033 const Elf_Sym *Symbol, 3034 const Elf_Sym *FirstSym) { 3035 unsigned SectionIndex = Symbol->st_shndx; 3036 switch (SectionIndex) { 3037 case ELF::SHN_UNDEF: 3038 return "UND"; 3039 case ELF::SHN_ABS: 3040 return "ABS"; 3041 case ELF::SHN_COMMON: 3042 return "COM"; 3043 case ELF::SHN_XINDEX: 3044 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 3045 Symbol, FirstSym, this->dumper()->getShndxTable())); 3046 LLVM_FALLTHROUGH; 3047 default: 3048 // Find if: 3049 // Processor specific 3050 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC) 3051 return std::string("PRC[0x") + 3052 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 3053 // OS specific 3054 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS) 3055 return std::string("OS[0x") + 3056 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 3057 // Architecture reserved: 3058 if (SectionIndex >= ELF::SHN_LORESERVE && 3059 SectionIndex <= ELF::SHN_HIRESERVE) 3060 return std::string("RSV[0x") + 3061 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 3062 // A normal section with an index 3063 return to_string(format_decimal(SectionIndex, 3)); 3064 } 3065 } 3066 3067 template <class ELFT> 3068 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 3069 const Elf_Sym *FirstSym, StringRef StrTable, 3070 bool IsDynamic) { 3071 static int Idx = 0; 3072 static bool Dynamic = true; 3073 size_t Width; 3074 3075 // If this function was called with a different value from IsDynamic 3076 // from last call, happens when we move from dynamic to static symbol 3077 // table, "Num" field should be reset. 3078 if (!Dynamic != !IsDynamic) { 3079 Idx = 0; 3080 Dynamic = false; 3081 } 3082 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section; 3083 unsigned Bias = 0; 3084 if (ELFT::Is64Bits) { 3085 Bias = 8; 3086 Width = 16; 3087 } else { 3088 Bias = 0; 3089 Width = 8; 3090 } 3091 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias, 3092 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias}; 3093 Num = to_string(format_decimal(Idx++, 6)) + ":"; 3094 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 3095 Size = to_string(format_decimal(Symbol->st_size, 5)); 3096 unsigned char SymbolType = Symbol->getType(); 3097 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3098 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3099 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3100 else 3101 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3102 unsigned Vis = Symbol->getVisibility(); 3103 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3104 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 3105 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3106 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 3107 Fields[0].Str = Num; 3108 Fields[1].Str = Value; 3109 Fields[2].Str = Size; 3110 Fields[3].Str = Type; 3111 Fields[4].Str = Binding; 3112 Fields[5].Str = Visibility; 3113 Fields[6].Str = Section; 3114 Fields[7].Str = Name; 3115 for (auto &Entry : Fields) 3116 printField(Entry); 3117 OS << "\n"; 3118 } 3119 template <class ELFT> 3120 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, 3121 uint32_t Sym, StringRef StrTable, 3122 uint32_t Bucket) { 3123 std::string Num, Buc, Name, Value, Size, Binding, Type, Visibility, Section; 3124 unsigned Width, Bias = 0; 3125 if (ELFT::Is64Bits) { 3126 Bias = 8; 3127 Width = 16; 3128 } else { 3129 Bias = 0; 3130 Width = 8; 3131 } 3132 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias, 3133 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias}; 3134 Num = to_string(format_decimal(Sym, 5)); 3135 Buc = to_string(format_decimal(Bucket, 3)) + ":"; 3136 3137 const auto Symbol = FirstSym + Sym; 3138 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 3139 Size = to_string(format_decimal(Symbol->st_size, 5)); 3140 unsigned char SymbolType = Symbol->getType(); 3141 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3142 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3143 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3144 else 3145 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3146 unsigned Vis = Symbol->getVisibility(); 3147 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3148 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 3149 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3150 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, true); 3151 Fields[0].Str = Num; 3152 Fields[1].Str = Buc; 3153 Fields[2].Str = Value; 3154 Fields[3].Str = Size; 3155 Fields[4].Str = Type; 3156 Fields[5].Str = Binding; 3157 Fields[6].Str = Visibility; 3158 Fields[7].Str = Section; 3159 Fields[8].Str = Name; 3160 for (auto &Entry : Fields) 3161 printField(Entry); 3162 OS << "\n"; 3163 } 3164 3165 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) { 3166 if (opts::DynamicSymbols) 3167 return; 3168 this->dumper()->printSymbolsHelper(true); 3169 this->dumper()->printSymbolsHelper(false); 3170 } 3171 3172 template <class ELFT> 3173 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 3174 if (this->dumper()->getDynamicStringTable().empty()) 3175 return; 3176 auto StringTable = this->dumper()->getDynamicStringTable(); 3177 auto DynSyms = this->dumper()->dynamic_symbols(); 3178 auto GnuHash = this->dumper()->getGnuHashTable(); 3179 auto SysVHash = this->dumper()->getHashTable(); 3180 3181 // If no hash or .gnu.hash found, try using symbol table 3182 if (GnuHash == nullptr && SysVHash == nullptr) 3183 this->dumper()->printSymbolsHelper(true); 3184 3185 // Try printing .hash 3186 if (this->dumper()->getHashTable()) { 3187 OS << "\n Symbol table of .hash for image:\n"; 3188 if (ELFT::Is64Bits) 3189 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3190 else 3191 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3192 OS << "\n"; 3193 3194 uint32_t NBuckets = SysVHash->nbucket; 3195 uint32_t NChains = SysVHash->nchain; 3196 auto Buckets = SysVHash->buckets(); 3197 auto Chains = SysVHash->chains(); 3198 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 3199 if (Buckets[Buc] == ELF::STN_UNDEF) 3200 continue; 3201 for (uint32_t Ch = Buckets[Buc]; Ch < NChains; Ch = Chains[Ch]) { 3202 if (Ch == ELF::STN_UNDEF) 3203 break; 3204 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc); 3205 } 3206 } 3207 } 3208 3209 // Try printing .gnu.hash 3210 if (GnuHash) { 3211 OS << "\n Symbol table of .gnu.hash for image:\n"; 3212 if (ELFT::Is64Bits) 3213 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3214 else 3215 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3216 OS << "\n"; 3217 uint32_t NBuckets = GnuHash->nbuckets; 3218 auto Buckets = GnuHash->buckets(); 3219 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 3220 if (Buckets[Buc] == ELF::STN_UNDEF) 3221 continue; 3222 uint32_t Index = Buckets[Buc]; 3223 uint32_t GnuHashable = Index - GnuHash->symndx; 3224 // Print whole chain 3225 while (true) { 3226 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc); 3227 // Chain ends at symbol with stopper bit 3228 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1) 3229 break; 3230 } 3231 } 3232 } 3233 } 3234 3235 static inline std::string printPhdrFlags(unsigned Flag) { 3236 std::string Str; 3237 Str = (Flag & PF_R) ? "R" : " "; 3238 Str += (Flag & PF_W) ? "W" : " "; 3239 Str += (Flag & PF_X) ? "E" : " "; 3240 return Str; 3241 } 3242 3243 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO 3244 // PT_TLS must only have SHF_TLS sections 3245 template <class ELFT> 3246 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr, 3247 const Elf_Shdr &Sec) { 3248 return (((Sec.sh_flags & ELF::SHF_TLS) && 3249 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) || 3250 (Phdr.p_type == ELF::PT_GNU_RELRO))) || 3251 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS)); 3252 } 3253 3254 // Non-SHT_NOBITS must have its offset inside the segment 3255 // Only non-zero section can be at end of segment 3256 template <class ELFT> 3257 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3258 if (Sec.sh_type == ELF::SHT_NOBITS) 3259 return true; 3260 bool IsSpecial = 3261 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3262 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3263 auto SectionSize = 3264 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3265 if (Sec.sh_offset >= Phdr.p_offset) 3266 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset) 3267 /*only non-zero sized sections at end*/ && 3268 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz)); 3269 return false; 3270 } 3271 3272 // SHF_ALLOC must have VMA inside segment 3273 // Only non-zero section can be at end of segment 3274 template <class ELFT> 3275 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3276 if (!(Sec.sh_flags & ELF::SHF_ALLOC)) 3277 return true; 3278 bool IsSpecial = 3279 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3280 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3281 auto SectionSize = 3282 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3283 if (Sec.sh_addr >= Phdr.p_vaddr) 3284 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) && 3285 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz)); 3286 return false; 3287 } 3288 3289 // No section with zero size must be at start or end of PT_DYNAMIC 3290 template <class ELFT> 3291 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3292 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0) 3293 return true; 3294 // Is section within the phdr both based on offset and VMA ? 3295 return ((Sec.sh_type == ELF::SHT_NOBITS) || 3296 (Sec.sh_offset > Phdr.p_offset && 3297 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) && 3298 (!(Sec.sh_flags & ELF::SHF_ALLOC) || 3299 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz)); 3300 } 3301 3302 template <class ELFT> 3303 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3304 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3305 unsigned Width = ELFT::Is64Bits ? 18 : 10; 3306 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7; 3307 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align; 3308 3309 const Elf_Ehdr *Header = Obj->getHeader(); 3310 Field Fields[8] = {2, 17, 26, 37 + Bias, 3311 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias}; 3312 OS << "\nElf file type is " 3313 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n" 3314 << "Entry point " << format_hex(Header->e_entry, 3) << "\n" 3315 << "There are " << Header->e_phnum << " program headers," 3316 << " starting at offset " << Header->e_phoff << "\n\n" 3317 << "Program Headers:\n"; 3318 if (ELFT::Is64Bits) 3319 OS << " Type Offset VirtAddr PhysAddr " 3320 << " FileSiz MemSiz Flg Align\n"; 3321 else 3322 OS << " Type Offset VirtAddr PhysAddr FileSiz " 3323 << "MemSiz Flg Align\n"; 3324 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) { 3325 Type = getElfPtType(Header->e_machine, Phdr.p_type); 3326 Offset = to_string(format_hex(Phdr.p_offset, 8)); 3327 VMA = to_string(format_hex(Phdr.p_vaddr, Width)); 3328 LMA = to_string(format_hex(Phdr.p_paddr, Width)); 3329 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth)); 3330 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth)); 3331 Flag = printPhdrFlags(Phdr.p_flags); 3332 Align = to_string(format_hex(Phdr.p_align, 1)); 3333 Fields[0].Str = Type; 3334 Fields[1].Str = Offset; 3335 Fields[2].Str = VMA; 3336 Fields[3].Str = LMA; 3337 Fields[4].Str = FileSz; 3338 Fields[5].Str = MemSz; 3339 Fields[6].Str = Flag; 3340 Fields[7].Str = Align; 3341 for (auto Field : Fields) 3342 printField(Field); 3343 if (Phdr.p_type == ELF::PT_INTERP) { 3344 OS << "\n [Requesting program interpreter: "; 3345 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]"; 3346 } 3347 OS << "\n"; 3348 } 3349 OS << "\n Section to Segment mapping:\n Segment Sections...\n"; 3350 int Phnum = 0; 3351 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3352 std::string Sections; 3353 OS << format(" %2.2d ", Phnum++); 3354 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3355 // Check if each section is in a segment and then print mapping. 3356 // readelf additionally makes sure it does not print zero sized sections 3357 // at end of segments and for PT_DYNAMIC both start and end of section 3358 // .tbss must only be shown in PT_TLS section. 3359 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) && 3360 ((Sec.sh_flags & ELF::SHF_TLS) != 0) && 3361 Phdr.p_type != ELF::PT_TLS; 3362 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) && 3363 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) && 3364 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) 3365 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " "; 3366 } 3367 OS << Sections << "\n"; 3368 OS.flush(); 3369 } 3370 } 3371 3372 template <class ELFT> 3373 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R, 3374 bool IsRela) { 3375 SmallString<32> RelocName; 3376 StringRef SymbolName; 3377 unsigned Width = ELFT::Is64Bits ? 16 : 8; 3378 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3379 // First two fields are bit width dependent. The rest of them are after are 3380 // fixed width. 3381 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 3382 3383 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL()); 3384 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3385 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 3386 SymbolName = 3387 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 3388 std::string Addend, Info, Offset, Value; 3389 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 3390 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 3391 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 3392 int64_t RelAddend = R.r_addend; 3393 if (!SymbolName.empty() && IsRela) { 3394 if (R.r_addend < 0) 3395 Addend = " - "; 3396 else 3397 Addend = " + "; 3398 } 3399 3400 if (SymbolName.empty() && Sym->getValue() == 0) 3401 Value = ""; 3402 3403 if (IsRela) 3404 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1)); 3405 3406 3407 Fields[0].Str = Offset; 3408 Fields[1].Str = Info; 3409 Fields[2].Str = RelocName.c_str(); 3410 Fields[3].Str = Value; 3411 Fields[4].Str = SymbolName; 3412 for (auto &Field : Fields) 3413 printField(Field); 3414 OS << Addend; 3415 OS << "\n"; 3416 } 3417 3418 template <class ELFT> 3419 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3420 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3421 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3422 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 3423 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3424 if (DynRelaRegion.Size > 0) { 3425 OS << "\n'RELA' relocation section at offset " 3426 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) - 3427 Obj->base(), 3428 1) << " contains " << DynRelaRegion.Size << " bytes:\n"; 3429 printRelocHeader(ELF::SHT_RELA); 3430 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3431 printDynamicRelocation(Obj, Rela, true); 3432 } 3433 if (DynRelRegion.Size > 0) { 3434 OS << "\n'REL' relocation section at offset " 3435 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) - 3436 Obj->base(), 3437 1) << " contains " << DynRelRegion.Size << " bytes:\n"; 3438 printRelocHeader(ELF::SHT_REL); 3439 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3440 Elf_Rela Rela; 3441 Rela.r_offset = Rel.r_offset; 3442 Rela.r_info = Rel.r_info; 3443 Rela.r_addend = 0; 3444 printDynamicRelocation(Obj, Rela, false); 3445 } 3446 } 3447 if (DynRelrRegion.Size > 0) { 3448 OS << "\n'RELR' relocation section at offset " 3449 << format_hex(reinterpret_cast<const uint8_t *>(DynRelrRegion.Addr) - 3450 Obj->base(), 3451 1) << " contains " << DynRelrRegion.Size << " bytes:\n"; 3452 printRelocHeader(ELF::SHT_REL); 3453 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 3454 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 3455 for (const Elf_Rela &Rela : RelrRelas) { 3456 printDynamicRelocation(Obj, Rela, false); 3457 } 3458 } 3459 if (DynPLTRelRegion.Size) { 3460 OS << "\n'PLT' relocation section at offset " 3461 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) - 3462 Obj->base(), 3463 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n"; 3464 } 3465 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) { 3466 printRelocHeader(ELF::SHT_RELA); 3467 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3468 printDynamicRelocation(Obj, Rela, true); 3469 } else { 3470 printRelocHeader(ELF::SHT_REL); 3471 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3472 Elf_Rela Rela; 3473 Rela.r_offset = Rel.r_offset; 3474 Rela.r_info = Rel.r_info; 3475 Rela.r_addend = 0; 3476 printDynamicRelocation(Obj, Rela, false); 3477 } 3478 } 3479 } 3480 3481 // Hash histogram shows statistics of how efficient the hash was for the 3482 // dynamic symbol table. The table shows number of hash buckets for different 3483 // lengths of chains as absolute number and percentage of the total buckets. 3484 // Additionally cumulative coverage of symbols for each set of buckets. 3485 template <class ELFT> 3486 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3487 3488 const Elf_Hash *HashTable = this->dumper()->getHashTable(); 3489 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable(); 3490 3491 // Print histogram for .hash section 3492 if (HashTable) { 3493 size_t NBucket = HashTable->nbucket; 3494 size_t NChain = HashTable->nchain; 3495 ArrayRef<Elf_Word> Buckets = HashTable->buckets(); 3496 ArrayRef<Elf_Word> Chains = HashTable->chains(); 3497 size_t TotalSyms = 0; 3498 // If hash table is correct, we have at least chains with 0 length 3499 size_t MaxChain = 1; 3500 size_t CumulativeNonZero = 0; 3501 3502 if (NChain == 0 || NBucket == 0) 3503 return; 3504 3505 std::vector<size_t> ChainLen(NBucket, 0); 3506 // Go over all buckets and and note chain lengths of each bucket (total 3507 // unique chain lengths). 3508 for (size_t B = 0; B < NBucket; B++) { 3509 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C]) 3510 if (MaxChain <= ++ChainLen[B]) 3511 MaxChain++; 3512 TotalSyms += ChainLen[B]; 3513 } 3514 3515 if (!TotalSyms) 3516 return; 3517 3518 std::vector<size_t> Count(MaxChain, 0) ; 3519 // Count how long is the chain for each bucket 3520 for (size_t B = 0; B < NBucket; B++) 3521 ++Count[ChainLen[B]]; 3522 // Print Number of buckets with each chain lengths and their cumulative 3523 // coverage of the symbols 3524 OS << "Histogram for bucket list length (total of " << NBucket 3525 << " buckets)\n" 3526 << " Length Number % of total Coverage\n"; 3527 for (size_t I = 0; I < MaxChain; I++) { 3528 CumulativeNonZero += Count[I] * I; 3529 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3530 (Count[I] * 100.0) / NBucket, 3531 (CumulativeNonZero * 100.0) / TotalSyms); 3532 } 3533 } 3534 3535 // Print histogram for .gnu.hash section 3536 if (GnuHashTable) { 3537 size_t NBucket = GnuHashTable->nbuckets; 3538 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets(); 3539 unsigned NumSyms = this->dumper()->dynamic_symbols().size(); 3540 if (!NumSyms) 3541 return; 3542 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms); 3543 size_t Symndx = GnuHashTable->symndx; 3544 size_t TotalSyms = 0; 3545 size_t MaxChain = 1; 3546 size_t CumulativeNonZero = 0; 3547 3548 if (Chains.empty() || NBucket == 0) 3549 return; 3550 3551 std::vector<size_t> ChainLen(NBucket, 0); 3552 3553 for (size_t B = 0; B < NBucket; B++) { 3554 if (!Buckets[B]) 3555 continue; 3556 size_t Len = 1; 3557 for (size_t C = Buckets[B] - Symndx; 3558 C < Chains.size() && (Chains[C] & 1) == 0; C++) 3559 if (MaxChain < ++Len) 3560 MaxChain++; 3561 ChainLen[B] = Len; 3562 TotalSyms += Len; 3563 } 3564 MaxChain++; 3565 3566 if (!TotalSyms) 3567 return; 3568 3569 std::vector<size_t> Count(MaxChain, 0) ; 3570 for (size_t B = 0; B < NBucket; B++) 3571 ++Count[ChainLen[B]]; 3572 // Print Number of buckets with each chain lengths and their cumulative 3573 // coverage of the symbols 3574 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket 3575 << " buckets)\n" 3576 << " Length Number % of total Coverage\n"; 3577 for (size_t I = 0; I <MaxChain; I++) { 3578 CumulativeNonZero += Count[I] * I; 3579 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3580 (Count[I] * 100.0) / NBucket, 3581 (CumulativeNonZero * 100.0) / TotalSyms); 3582 } 3583 } 3584 } 3585 3586 template <class ELFT> 3587 void GNUStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 3588 OS << "GNUStyle::printCGProfile not implemented\n"; 3589 } 3590 3591 template <class ELFT> 3592 void GNUStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 3593 OS << "GNUStyle::printAddrsig not implemented\n"; 3594 } 3595 3596 static std::string getGNUNoteTypeName(const uint32_t NT) { 3597 static const struct { 3598 uint32_t ID; 3599 const char *Name; 3600 } Notes[] = { 3601 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"}, 3602 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"}, 3603 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"}, 3604 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"}, 3605 {ELF::NT_GNU_PROPERTY_TYPE_0, "NT_GNU_PROPERTY_TYPE_0 (property note)"}, 3606 }; 3607 3608 for (const auto &Note : Notes) 3609 if (Note.ID == NT) 3610 return std::string(Note.Name); 3611 3612 std::string string; 3613 raw_string_ostream OS(string); 3614 OS << format("Unknown note type (0x%08x)", NT); 3615 return OS.str(); 3616 } 3617 3618 static std::string getFreeBSDNoteTypeName(const uint32_t NT) { 3619 static const struct { 3620 uint32_t ID; 3621 const char *Name; 3622 } Notes[] = { 3623 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"}, 3624 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"}, 3625 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"}, 3626 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"}, 3627 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"}, 3628 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"}, 3629 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"}, 3630 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"}, 3631 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS, 3632 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"}, 3633 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"}, 3634 }; 3635 3636 for (const auto &Note : Notes) 3637 if (Note.ID == NT) 3638 return std::string(Note.Name); 3639 3640 std::string string; 3641 raw_string_ostream OS(string); 3642 OS << format("Unknown note type (0x%08x)", NT); 3643 return OS.str(); 3644 } 3645 3646 static std::string getAMDNoteTypeName(const uint32_t NT) { 3647 static const struct { 3648 uint32_t ID; 3649 const char *Name; 3650 } Notes[] = { 3651 {ELF::NT_AMD_AMDGPU_HSA_METADATA, 3652 "NT_AMD_AMDGPU_HSA_METADATA (HSA Metadata)"}, 3653 {ELF::NT_AMD_AMDGPU_ISA, 3654 "NT_AMD_AMDGPU_ISA (ISA Version)"}, 3655 {ELF::NT_AMD_AMDGPU_PAL_METADATA, 3656 "NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)"} 3657 }; 3658 3659 for (const auto &Note : Notes) 3660 if (Note.ID == NT) 3661 return std::string(Note.Name); 3662 3663 std::string string; 3664 raw_string_ostream OS(string); 3665 OS << format("Unknown note type (0x%08x)", NT); 3666 return OS.str(); 3667 } 3668 3669 static std::string getAMDGPUNoteTypeName(const uint32_t NT) { 3670 if (NT == ELF::NT_AMDGPU_METADATA) 3671 return std::string("NT_AMDGPU_METADATA (AMDGPU Metadata)"); 3672 3673 std::string string; 3674 raw_string_ostream OS(string); 3675 OS << format("Unknown note type (0x%08x)", NT); 3676 return OS.str(); 3677 } 3678 3679 template <typename ELFT> 3680 static std::string getGNUProperty(uint32_t Type, uint32_t DataSize, 3681 ArrayRef<uint8_t> Data) { 3682 std::string str; 3683 raw_string_ostream OS(str); 3684 switch (Type) { 3685 default: 3686 OS << format("<application-specific type 0x%x>", Type); 3687 return OS.str(); 3688 case GNU_PROPERTY_STACK_SIZE: { 3689 OS << "stack size: "; 3690 if (DataSize == sizeof(typename ELFT::uint)) 3691 OS << formatv("{0:x}", 3692 (uint64_t)(*(const typename ELFT::Addr *)Data.data())); 3693 else 3694 OS << format("<corrupt length: 0x%x>", DataSize); 3695 return OS.str(); 3696 } 3697 case GNU_PROPERTY_NO_COPY_ON_PROTECTED: 3698 OS << "no copy on protected"; 3699 if (DataSize) 3700 OS << format(" <corrupt length: 0x%x>", DataSize); 3701 return OS.str(); 3702 case GNU_PROPERTY_X86_FEATURE_1_AND: 3703 OS << "X86 features: "; 3704 if (DataSize != 4 && DataSize != 8) { 3705 OS << format("<corrupt length: 0x%x>", DataSize); 3706 return OS.str(); 3707 } 3708 uint64_t CFProtection = 3709 (DataSize == 4) 3710 ? support::endian::read32<ELFT::TargetEndianness>(Data.data()) 3711 : support::endian::read64<ELFT::TargetEndianness>(Data.data()); 3712 if (CFProtection == 0) { 3713 OS << "none"; 3714 return OS.str(); 3715 } 3716 if (CFProtection & GNU_PROPERTY_X86_FEATURE_1_IBT) { 3717 OS << "IBT"; 3718 CFProtection &= ~GNU_PROPERTY_X86_FEATURE_1_IBT; 3719 if (CFProtection) 3720 OS << ", "; 3721 } 3722 if (CFProtection & GNU_PROPERTY_X86_FEATURE_1_SHSTK) { 3723 OS << "SHSTK"; 3724 CFProtection &= ~GNU_PROPERTY_X86_FEATURE_1_SHSTK; 3725 if (CFProtection) 3726 OS << ", "; 3727 } 3728 if (CFProtection) 3729 OS << format("<unknown flags: 0x%llx>", CFProtection); 3730 return OS.str(); 3731 } 3732 } 3733 3734 template <typename ELFT> 3735 static SmallVector<std::string, 4> 3736 getGNUPropertyList(ArrayRef<uint8_t> Arr) { 3737 using Elf_Word = typename ELFT::Word; 3738 3739 SmallVector<std::string, 4> Properties; 3740 while (Arr.size() >= 8) { 3741 uint32_t Type = *reinterpret_cast<const Elf_Word *>(Arr.data()); 3742 uint32_t DataSize = *reinterpret_cast<const Elf_Word *>(Arr.data() + 4); 3743 Arr = Arr.drop_front(8); 3744 3745 // Take padding size into account if present. 3746 uint64_t PaddedSize = alignTo(DataSize, sizeof(typename ELFT::uint)); 3747 std::string str; 3748 raw_string_ostream OS(str); 3749 if (Arr.size() < PaddedSize) { 3750 OS << format("<corrupt type (0x%x) datasz: 0x%x>", Type, DataSize); 3751 Properties.push_back(OS.str()); 3752 break; 3753 } 3754 Properties.push_back( 3755 getGNUProperty<ELFT>(Type, DataSize, Arr.take_front(PaddedSize))); 3756 Arr = Arr.drop_front(PaddedSize); 3757 } 3758 3759 if (!Arr.empty()) 3760 Properties.push_back("<corrupted GNU_PROPERTY_TYPE_0>"); 3761 3762 return Properties; 3763 } 3764 3765 struct GNUAbiTag { 3766 std::string OSName; 3767 std::string ABI; 3768 bool IsValid; 3769 }; 3770 3771 template <typename ELFT> 3772 static GNUAbiTag getGNUAbiTag(ArrayRef<uint8_t> Desc) { 3773 typedef typename ELFT::Word Elf_Word; 3774 3775 ArrayRef<Elf_Word> Words(reinterpret_cast<const Elf_Word*>(Desc.begin()), 3776 reinterpret_cast<const Elf_Word*>(Desc.end())); 3777 3778 if (Words.size() < 4) 3779 return {"", "", /*IsValid=*/false}; 3780 3781 static const char *OSNames[] = { 3782 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl", 3783 }; 3784 StringRef OSName = "Unknown"; 3785 if (Words[0] < array_lengthof(OSNames)) 3786 OSName = OSNames[Words[0]]; 3787 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3]; 3788 std::string str; 3789 raw_string_ostream ABI(str); 3790 ABI << Major << "." << Minor << "." << Patch; 3791 return {OSName, ABI.str(), /*IsValid=*/true}; 3792 } 3793 3794 static std::string getGNUBuildId(ArrayRef<uint8_t> Desc) { 3795 std::string str; 3796 raw_string_ostream OS(str); 3797 for (const auto &B : Desc) 3798 OS << format_hex_no_prefix(B, 2); 3799 return OS.str(); 3800 } 3801 3802 static StringRef getGNUGoldVersion(ArrayRef<uint8_t> Desc) { 3803 return StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size()); 3804 } 3805 3806 template <typename ELFT> 3807 static void printGNUNote(raw_ostream &OS, uint32_t NoteType, 3808 ArrayRef<uint8_t> Desc) { 3809 switch (NoteType) { 3810 default: 3811 return; 3812 case ELF::NT_GNU_ABI_TAG: { 3813 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc); 3814 if (!AbiTag.IsValid) 3815 OS << " <corrupt GNU_ABI_TAG>"; 3816 else 3817 OS << " OS: " << AbiTag.OSName << ", ABI: " << AbiTag.ABI; 3818 break; 3819 } 3820 case ELF::NT_GNU_BUILD_ID: { 3821 OS << " Build ID: " << getGNUBuildId(Desc); 3822 break; 3823 } 3824 case ELF::NT_GNU_GOLD_VERSION: 3825 OS << " Version: " << getGNUGoldVersion(Desc); 3826 break; 3827 case ELF::NT_GNU_PROPERTY_TYPE_0: 3828 OS << " Properties:"; 3829 for (const auto &Property : getGNUPropertyList<ELFT>(Desc)) 3830 OS << " " << Property << "\n"; 3831 break; 3832 } 3833 OS << '\n'; 3834 } 3835 3836 struct AMDNote { 3837 std::string Type; 3838 std::string Value; 3839 }; 3840 3841 template <typename ELFT> 3842 static AMDNote getAMDNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) { 3843 switch (NoteType) { 3844 default: 3845 return {"", ""}; 3846 case ELF::NT_AMD_AMDGPU_HSA_METADATA: 3847 return {"HSA Metadata", 3848 std::string(reinterpret_cast<const char *>(Desc.data()), 3849 Desc.size())}; 3850 case ELF::NT_AMD_AMDGPU_ISA: 3851 return {"ISA Version", 3852 std::string(reinterpret_cast<const char *>(Desc.data()), 3853 Desc.size())}; 3854 case ELF::NT_AMD_AMDGPU_PAL_METADATA: 3855 const uint32_t *PALMetadataBegin = 3856 reinterpret_cast<const uint32_t *>(Desc.data()); 3857 const uint32_t *PALMetadataEnd = PALMetadataBegin + Desc.size(); 3858 std::vector<uint32_t> PALMetadata(PALMetadataBegin, PALMetadataEnd); 3859 std::string PALMetadataString; 3860 auto Error = AMDGPU::PALMD::toString(PALMetadata, PALMetadataString); 3861 if (Error) { 3862 return {"PAL Metadata", "Invalid"}; 3863 } 3864 return {"PAL Metadata", PALMetadataString}; 3865 } 3866 } 3867 3868 struct AMDGPUNote { 3869 std::string Type; 3870 std::string Value; 3871 }; 3872 3873 template <typename ELFT> 3874 static AMDGPUNote getAMDGPUNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) { 3875 switch (NoteType) { 3876 default: 3877 return {"", ""}; 3878 case ELF::NT_AMDGPU_METADATA: 3879 auto MsgPackString = 3880 StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size()); 3881 msgpack::Reader MsgPackReader(MsgPackString); 3882 auto OptMsgPackNodeOrErr = msgpack::Node::read(MsgPackReader); 3883 if (errorToBool(OptMsgPackNodeOrErr.takeError())) 3884 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; 3885 auto &OptMsgPackNode = *OptMsgPackNodeOrErr; 3886 if (!OptMsgPackNode) 3887 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; 3888 auto &MsgPackNode = *OptMsgPackNode; 3889 3890 AMDGPU::HSAMD::V3::MetadataVerifier Verifier(true); 3891 if (!Verifier.verify(*MsgPackNode)) 3892 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; 3893 3894 std::string HSAMetadataString; 3895 raw_string_ostream StrOS(HSAMetadataString); 3896 yaml::Output YOut(StrOS); 3897 YOut << MsgPackNode; 3898 3899 return {"AMDGPU Metadata", StrOS.str()}; 3900 } 3901 } 3902 3903 template <class ELFT> 3904 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3905 const Elf_Ehdr *e = Obj->getHeader(); 3906 bool IsCore = e->e_type == ELF::ET_CORE; 3907 3908 auto PrintHeader = [&](const typename ELFT::Off Offset, 3909 const typename ELFT::Addr Size) { 3910 OS << "Displaying notes found at file offset " << format_hex(Offset, 10) 3911 << " with length " << format_hex(Size, 10) << ":\n" 3912 << " Owner Data size\tDescription\n"; 3913 }; 3914 3915 auto ProcessNote = [&](const Elf_Note &Note) { 3916 StringRef Name = Note.getName(); 3917 ArrayRef<uint8_t> Descriptor = Note.getDesc(); 3918 Elf_Word Type = Note.getType(); 3919 3920 OS << " " << Name << std::string(22 - Name.size(), ' ') 3921 << format_hex(Descriptor.size(), 10) << '\t'; 3922 3923 if (Name == "GNU") { 3924 OS << getGNUNoteTypeName(Type) << '\n'; 3925 printGNUNote<ELFT>(OS, Type, Descriptor); 3926 } else if (Name == "FreeBSD") { 3927 OS << getFreeBSDNoteTypeName(Type) << '\n'; 3928 } else if (Name == "AMD") { 3929 OS << getAMDNoteTypeName(Type) << '\n'; 3930 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor); 3931 if (!N.Type.empty()) 3932 OS << " " << N.Type << ":\n " << N.Value << '\n'; 3933 } else if (Name == "AMDGPU") { 3934 OS << getAMDGPUNoteTypeName(Type) << '\n'; 3935 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor); 3936 if (!N.Type.empty()) 3937 OS << " " << N.Type << ":\n " << N.Value << '\n'; 3938 } else { 3939 OS << "Unknown note type: (" << format_hex(Type, 10) << ')'; 3940 } 3941 OS << '\n'; 3942 }; 3943 3944 if (IsCore) { 3945 for (const auto &P : unwrapOrError(Obj->program_headers())) { 3946 if (P.p_type != PT_NOTE) 3947 continue; 3948 PrintHeader(P.p_offset, P.p_filesz); 3949 Error Err = Error::success(); 3950 for (const auto &Note : Obj->notes(P, Err)) 3951 ProcessNote(Note); 3952 if (Err) 3953 error(std::move(Err)); 3954 } 3955 } else { 3956 for (const auto &S : unwrapOrError(Obj->sections())) { 3957 if (S.sh_type != SHT_NOTE) 3958 continue; 3959 PrintHeader(S.sh_offset, S.sh_size); 3960 Error Err = Error::success(); 3961 for (const auto &Note : Obj->notes(S, Err)) 3962 ProcessNote(Note); 3963 if (Err) 3964 error(std::move(Err)); 3965 } 3966 } 3967 } 3968 3969 template <class ELFT> 3970 void GNUStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 3971 OS << "printELFLinkerOptions not implemented!\n"; 3972 } 3973 3974 template <class ELFT> 3975 void GNUStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 3976 size_t Bias = ELFT::Is64Bits ? 8 : 0; 3977 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 3978 OS.PadToColumn(2); 3979 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 3980 OS.PadToColumn(11 + Bias); 3981 OS << format_decimal(Parser.getGotOffset(E), 6) << "(gp)"; 3982 OS.PadToColumn(22 + Bias); 3983 OS << format_hex_no_prefix(*E, 8 + Bias); 3984 OS.PadToColumn(31 + 2 * Bias); 3985 OS << Purpose << "\n"; 3986 }; 3987 3988 OS << (Parser.IsStatic ? "Static GOT:\n" : "Primary GOT:\n"); 3989 OS << " Canonical gp value: " 3990 << format_hex_no_prefix(Parser.getGp(), 8 + Bias) << "\n\n"; 3991 3992 OS << " Reserved entries:\n"; 3993 OS << " Address Access Initial Purpose\n"; 3994 PrintEntry(Parser.getGotLazyResolver(), "Lazy resolver"); 3995 if (Parser.getGotModulePointer()) 3996 PrintEntry(Parser.getGotModulePointer(), "Module pointer (GNU extension)"); 3997 3998 if (!Parser.getLocalEntries().empty()) { 3999 OS << "\n"; 4000 OS << " Local entries:\n"; 4001 OS << " Address Access Initial\n"; 4002 for (auto &E : Parser.getLocalEntries()) 4003 PrintEntry(&E, ""); 4004 } 4005 4006 if (Parser.IsStatic) 4007 return; 4008 4009 if (!Parser.getGlobalEntries().empty()) { 4010 OS << "\n"; 4011 OS << " Global entries:\n"; 4012 OS << " Address Access Initial Sym.Val. Type Ndx Name\n"; 4013 for (auto &E : Parser.getGlobalEntries()) { 4014 const Elf_Sym *Sym = Parser.getGotSym(&E); 4015 std::string SymName = this->dumper()->getFullSymbolName( 4016 Sym, this->dumper()->getDynamicStringTable(), false); 4017 4018 OS.PadToColumn(2); 4019 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 4020 OS.PadToColumn(11 + Bias); 4021 OS << to_string(format_decimal(Parser.getGotOffset(&E), 6)) + "(gp)"; 4022 OS.PadToColumn(22 + Bias); 4023 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 4024 OS.PadToColumn(31 + 2 * Bias); 4025 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 4026 OS.PadToColumn(40 + 3 * Bias); 4027 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4028 OS.PadToColumn(48 + 3 * Bias); 4029 OS << getSymbolSectionNdx(Parser.Obj, Sym, 4030 this->dumper()->dynamic_symbols().begin()); 4031 OS.PadToColumn(52 + 3 * Bias); 4032 OS << SymName << "\n"; 4033 } 4034 } 4035 4036 if (!Parser.getOtherEntries().empty()) 4037 OS << "\n Number of TLS and multi-GOT entries " 4038 << Parser.getOtherEntries().size() << "\n"; 4039 } 4040 4041 template <class ELFT> 4042 void GNUStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 4043 size_t Bias = ELFT::Is64Bits ? 8 : 0; 4044 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 4045 OS.PadToColumn(2); 4046 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 4047 OS.PadToColumn(11 + Bias); 4048 OS << format_hex_no_prefix(*E, 8 + Bias); 4049 OS.PadToColumn(20 + 2 * Bias); 4050 OS << Purpose << "\n"; 4051 }; 4052 4053 OS << "PLT GOT:\n\n"; 4054 4055 OS << " Reserved entries:\n"; 4056 OS << " Address Initial Purpose\n"; 4057 PrintEntry(Parser.getPltLazyResolver(), "PLT lazy resolver"); 4058 if (Parser.getPltModulePointer()) 4059 PrintEntry(Parser.getGotModulePointer(), "Module pointer"); 4060 4061 if (!Parser.getPltEntries().empty()) { 4062 OS << "\n"; 4063 OS << " Entries:\n"; 4064 OS << " Address Initial Sym.Val. Type Ndx Name\n"; 4065 for (auto &E : Parser.getPltEntries()) { 4066 const Elf_Sym *Sym = Parser.getPltSym(&E); 4067 std::string SymName = this->dumper()->getFullSymbolName( 4068 Sym, this->dumper()->getDynamicStringTable(), false); 4069 4070 OS.PadToColumn(2); 4071 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 4072 OS.PadToColumn(11 + Bias); 4073 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 4074 OS.PadToColumn(20 + 2 * Bias); 4075 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 4076 OS.PadToColumn(29 + 3 * Bias); 4077 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4078 OS.PadToColumn(37 + 3 * Bias); 4079 OS << getSymbolSectionNdx(Parser.Obj, Sym, 4080 this->dumper()->dynamic_symbols().begin()); 4081 OS.PadToColumn(41 + 3 * Bias); 4082 OS << SymName << "\n"; 4083 } 4084 } 4085 } 4086 4087 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 4088 const Elf_Ehdr *e = Obj->getHeader(); 4089 { 4090 DictScope D(W, "ElfHeader"); 4091 { 4092 DictScope D(W, "Ident"); 4093 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4)); 4094 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 4095 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA], 4096 makeArrayRef(ElfDataEncoding)); 4097 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]); 4098 4099 auto OSABI = makeArrayRef(ElfOSABI); 4100 if (e->e_ident[ELF::EI_OSABI] >= ELF::ELFOSABI_FIRST_ARCH && 4101 e->e_ident[ELF::EI_OSABI] <= ELF::ELFOSABI_LAST_ARCH) { 4102 switch (e->e_machine) { 4103 case ELF::EM_AMDGPU: 4104 OSABI = makeArrayRef(AMDGPUElfOSABI); 4105 break; 4106 case ELF::EM_ARM: 4107 OSABI = makeArrayRef(ARMElfOSABI); 4108 break; 4109 case ELF::EM_TI_C6000: 4110 OSABI = makeArrayRef(C6000ElfOSABI); 4111 break; 4112 } 4113 } 4114 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI], OSABI); 4115 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]); 4116 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD)); 4117 } 4118 4119 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType)); 4120 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType)); 4121 W.printNumber("Version", e->e_version); 4122 W.printHex("Entry", e->e_entry); 4123 W.printHex("ProgramHeaderOffset", e->e_phoff); 4124 W.printHex("SectionHeaderOffset", e->e_shoff); 4125 if (e->e_machine == EM_MIPS) 4126 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags), 4127 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 4128 unsigned(ELF::EF_MIPS_MACH)); 4129 else if (e->e_machine == EM_AMDGPU) 4130 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderAMDGPUFlags), 4131 unsigned(ELF::EF_AMDGPU_MACH)); 4132 else if (e->e_machine == EM_RISCV) 4133 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); 4134 else 4135 W.printFlags("Flags", e->e_flags); 4136 W.printNumber("HeaderSize", e->e_ehsize); 4137 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize); 4138 W.printNumber("ProgramHeaderCount", e->e_phnum); 4139 W.printNumber("SectionHeaderEntrySize", e->e_shentsize); 4140 W.printString("SectionHeaderCount", getSectionHeadersNumString(Obj)); 4141 W.printString("StringTableSectionIndex", getSectionHeaderTableIndexString(Obj)); 4142 } 4143 } 4144 4145 template <class ELFT> 4146 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) { 4147 DictScope Lists(W, "Groups"); 4148 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 4149 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 4150 for (const GroupSection &G : V) { 4151 DictScope D(W, "Group"); 4152 W.printNumber("Name", G.Name, G.ShName); 4153 W.printNumber("Index", G.Index); 4154 W.printNumber("Link", G.Link); 4155 W.printNumber("Info", G.Info); 4156 W.printHex("Type", getGroupType(G.Type), G.Type); 4157 W.startLine() << "Signature: " << G.Signature << "\n"; 4158 4159 ListScope L(W, "Section(s) in group"); 4160 for (const GroupMember &GM : G.Members) { 4161 const GroupSection *MainGroup = Map[GM.Index]; 4162 if (MainGroup != &G) { 4163 W.flush(); 4164 errs() << "Error: " << GM.Name << " (" << GM.Index 4165 << ") in a group " + G.Name + " (" << G.Index 4166 << ") is already in a group " + MainGroup->Name + " (" 4167 << MainGroup->Index << ")\n"; 4168 errs().flush(); 4169 continue; 4170 } 4171 W.startLine() << GM.Name << " (" << GM.Index << ")\n"; 4172 } 4173 } 4174 4175 if (V.empty()) 4176 W.startLine() << "There are no group sections in the file.\n"; 4177 } 4178 4179 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) { 4180 ListScope D(W, "Relocations"); 4181 4182 int SectionNumber = -1; 4183 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4184 ++SectionNumber; 4185 4186 if (Sec.sh_type != ELF::SHT_REL && 4187 Sec.sh_type != ELF::SHT_RELA && 4188 Sec.sh_type != ELF::SHT_RELR && 4189 Sec.sh_type != ELF::SHT_ANDROID_REL && 4190 Sec.sh_type != ELF::SHT_ANDROID_RELA && 4191 Sec.sh_type != ELF::SHT_ANDROID_RELR) 4192 continue; 4193 4194 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4195 4196 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; 4197 W.indent(); 4198 4199 printRelocations(&Sec, Obj); 4200 4201 W.unindent(); 4202 W.startLine() << "}\n"; 4203 } 4204 } 4205 4206 template <class ELFT> 4207 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) { 4208 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 4209 4210 switch (Sec->sh_type) { 4211 case ELF::SHT_REL: 4212 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) { 4213 Elf_Rela Rela; 4214 Rela.r_offset = R.r_offset; 4215 Rela.r_info = R.r_info; 4216 Rela.r_addend = 0; 4217 printRelocation(Obj, Rela, SymTab); 4218 } 4219 break; 4220 case ELF::SHT_RELA: 4221 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec))) 4222 printRelocation(Obj, R, SymTab); 4223 break; 4224 case ELF::SHT_RELR: 4225 case ELF::SHT_ANDROID_RELR: { 4226 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(Sec)); 4227 if (opts::RawRelr) { 4228 for (const Elf_Relr &R : Relrs) 4229 W.startLine() << W.hex(R) << "\n"; 4230 } else { 4231 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4232 for (const Elf_Rela &R : RelrRelas) 4233 printRelocation(Obj, R, SymTab); 4234 } 4235 break; 4236 } 4237 case ELF::SHT_ANDROID_REL: 4238 case ELF::SHT_ANDROID_RELA: 4239 for (const Elf_Rela &R : unwrapOrError(Obj->android_relas(Sec))) 4240 printRelocation(Obj, R, SymTab); 4241 break; 4242 } 4243 } 4244 4245 template <class ELFT> 4246 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel, 4247 const Elf_Shdr *SymTab) { 4248 SmallString<32> RelocName; 4249 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4250 StringRef TargetName; 4251 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab)); 4252 if (Sym && Sym->getType() == ELF::STT_SECTION) { 4253 const Elf_Shdr *Sec = unwrapOrError( 4254 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 4255 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 4256 } else if (Sym) { 4257 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 4258 TargetName = unwrapOrError(Sym->getName(StrTable)); 4259 } 4260 4261 if (opts::ExpandRelocs) { 4262 DictScope Group(W, "Relocation"); 4263 W.printHex("Offset", Rel.r_offset); 4264 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4265 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-", 4266 Rel.getSymbol(Obj->isMips64EL())); 4267 W.printHex("Addend", Rel.r_addend); 4268 } else { 4269 raw_ostream &OS = W.startLine(); 4270 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4271 << (!TargetName.empty() ? TargetName : "-") << " " 4272 << W.hex(Rel.r_addend) << "\n"; 4273 } 4274 } 4275 4276 template <class ELFT> 4277 void LLVMStyle<ELFT>::printSectionHeaders(const ELFO *Obj) { 4278 ListScope SectionsD(W, "Sections"); 4279 4280 int SectionIndex = -1; 4281 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4282 ++SectionIndex; 4283 4284 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4285 4286 DictScope SectionD(W, "Section"); 4287 W.printNumber("Index", SectionIndex); 4288 W.printNumber("Name", Name, Sec.sh_name); 4289 W.printHex( 4290 "Type", 4291 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type), 4292 Sec.sh_type); 4293 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags), 4294 std::end(ElfSectionFlags)); 4295 switch (Obj->getHeader()->e_machine) { 4296 case EM_ARM: 4297 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags), 4298 std::end(ElfARMSectionFlags)); 4299 break; 4300 case EM_HEXAGON: 4301 SectionFlags.insert(SectionFlags.end(), 4302 std::begin(ElfHexagonSectionFlags), 4303 std::end(ElfHexagonSectionFlags)); 4304 break; 4305 case EM_MIPS: 4306 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags), 4307 std::end(ElfMipsSectionFlags)); 4308 break; 4309 case EM_X86_64: 4310 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags), 4311 std::end(ElfX86_64SectionFlags)); 4312 break; 4313 case EM_XCORE: 4314 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags), 4315 std::end(ElfXCoreSectionFlags)); 4316 break; 4317 default: 4318 // Nothing to do. 4319 break; 4320 } 4321 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags)); 4322 W.printHex("Address", Sec.sh_addr); 4323 W.printHex("Offset", Sec.sh_offset); 4324 W.printNumber("Size", Sec.sh_size); 4325 W.printNumber("Link", Sec.sh_link); 4326 W.printNumber("Info", Sec.sh_info); 4327 W.printNumber("AddressAlignment", Sec.sh_addralign); 4328 W.printNumber("EntrySize", Sec.sh_entsize); 4329 4330 if (opts::SectionRelocations) { 4331 ListScope D(W, "Relocations"); 4332 printRelocations(&Sec, Obj); 4333 } 4334 4335 if (opts::SectionSymbols) { 4336 ListScope D(W, "Symbols"); 4337 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec(); 4338 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 4339 4340 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) { 4341 const Elf_Shdr *SymSec = unwrapOrError( 4342 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable())); 4343 if (SymSec == &Sec) 4344 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(), 4345 StrTable, false); 4346 } 4347 } 4348 4349 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) { 4350 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec)); 4351 W.printBinaryBlock("SectionData", 4352 StringRef((const char *)Data.data(), Data.size())); 4353 } 4354 } 4355 } 4356 4357 template <class ELFT> 4358 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 4359 const Elf_Sym *First, StringRef StrTable, 4360 bool IsDynamic) { 4361 unsigned SectionIndex = 0; 4362 StringRef SectionName; 4363 this->dumper()->getSectionNameIndex(Symbol, First, SectionName, SectionIndex); 4364 std::string FullSymbolName = 4365 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 4366 unsigned char SymbolType = Symbol->getType(); 4367 4368 DictScope D(W, "Symbol"); 4369 W.printNumber("Name", FullSymbolName, Symbol->st_name); 4370 W.printHex("Value", Symbol->st_value); 4371 W.printNumber("Size", Symbol->st_size); 4372 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 4373 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 4374 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 4375 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 4376 else 4377 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes)); 4378 if (Symbol->st_other == 0) 4379 // Usually st_other flag is zero. Do not pollute the output 4380 // by flags enumeration in that case. 4381 W.printNumber("Other", 0); 4382 else { 4383 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags), 4384 std::end(ElfSymOtherFlags)); 4385 if (Obj->getHeader()->e_machine == EM_MIPS) { 4386 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16 4387 // flag overlapped with other ST_MIPS_xxx flags. So consider both 4388 // cases separately. 4389 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16) 4390 SymOtherFlags.insert(SymOtherFlags.end(), 4391 std::begin(ElfMips16SymOtherFlags), 4392 std::end(ElfMips16SymOtherFlags)); 4393 else 4394 SymOtherFlags.insert(SymOtherFlags.end(), 4395 std::begin(ElfMipsSymOtherFlags), 4396 std::end(ElfMipsSymOtherFlags)); 4397 } 4398 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u); 4399 } 4400 W.printHex("Section", SectionName, SectionIndex); 4401 } 4402 4403 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) { 4404 ListScope Group(W, "Symbols"); 4405 this->dumper()->printSymbolsHelper(false); 4406 } 4407 4408 template <class ELFT> 4409 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 4410 ListScope Group(W, "DynamicSymbols"); 4411 this->dumper()->printSymbolsHelper(true); 4412 } 4413 4414 template <class ELFT> 4415 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 4416 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 4417 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 4418 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 4419 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 4420 if (DynRelRegion.Size && DynRelaRegion.Size) 4421 report_fatal_error("There are both REL and RELA dynamic relocations"); 4422 W.startLine() << "Dynamic Relocations {\n"; 4423 W.indent(); 4424 if (DynRelaRegion.Size > 0) 4425 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 4426 printDynamicRelocation(Obj, Rela); 4427 else 4428 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 4429 Elf_Rela Rela; 4430 Rela.r_offset = Rel.r_offset; 4431 Rela.r_info = Rel.r_info; 4432 Rela.r_addend = 0; 4433 printDynamicRelocation(Obj, Rela); 4434 } 4435 if (DynRelrRegion.Size > 0) { 4436 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 4437 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4438 for (const Elf_Rela &Rela : RelrRelas) 4439 printDynamicRelocation(Obj, Rela); 4440 } 4441 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) 4442 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 4443 printDynamicRelocation(Obj, Rela); 4444 else 4445 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 4446 Elf_Rela Rela; 4447 Rela.r_offset = Rel.r_offset; 4448 Rela.r_info = Rel.r_info; 4449 Rela.r_addend = 0; 4450 printDynamicRelocation(Obj, Rela); 4451 } 4452 W.unindent(); 4453 W.startLine() << "}\n"; 4454 } 4455 4456 template <class ELFT> 4457 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) { 4458 SmallString<32> RelocName; 4459 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4460 StringRef SymbolName; 4461 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL()); 4462 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 4463 SymbolName = 4464 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 4465 if (opts::ExpandRelocs) { 4466 DictScope Group(W, "Relocation"); 4467 W.printHex("Offset", Rel.r_offset); 4468 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4469 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-"); 4470 W.printHex("Addend", Rel.r_addend); 4471 } else { 4472 raw_ostream &OS = W.startLine(); 4473 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4474 << (!SymbolName.empty() ? SymbolName : "-") << " " 4475 << W.hex(Rel.r_addend) << "\n"; 4476 } 4477 } 4478 4479 template <class ELFT> 4480 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 4481 ListScope L(W, "ProgramHeaders"); 4482 4483 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 4484 DictScope P(W, "ProgramHeader"); 4485 W.printHex("Type", 4486 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type), 4487 Phdr.p_type); 4488 W.printHex("Offset", Phdr.p_offset); 4489 W.printHex("VirtualAddress", Phdr.p_vaddr); 4490 W.printHex("PhysicalAddress", Phdr.p_paddr); 4491 W.printNumber("FileSize", Phdr.p_filesz); 4492 W.printNumber("MemSize", Phdr.p_memsz); 4493 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags)); 4494 W.printNumber("Alignment", Phdr.p_align); 4495 } 4496 } 4497 4498 template <class ELFT> 4499 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 4500 W.startLine() << "Hash Histogram not implemented!\n"; 4501 } 4502 4503 template <class ELFT> 4504 void LLVMStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 4505 ListScope L(W, "CGProfile"); 4506 if (!this->dumper()->getDotCGProfileSec()) 4507 return; 4508 auto CGProfile = 4509 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_CGProfile>( 4510 this->dumper()->getDotCGProfileSec())); 4511 for (const Elf_CGProfile &CGPE : CGProfile) { 4512 DictScope D(W, "CGProfileEntry"); 4513 W.printNumber("From", this->dumper()->getStaticSymbolName(CGPE.cgp_from), 4514 CGPE.cgp_from); 4515 W.printNumber("To", this->dumper()->getStaticSymbolName(CGPE.cgp_to), 4516 CGPE.cgp_to); 4517 W.printNumber("Weight", CGPE.cgp_weight); 4518 } 4519 } 4520 4521 template <class ELFT> 4522 void LLVMStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 4523 ListScope L(W, "Addrsig"); 4524 if (!this->dumper()->getDotAddrsigSec()) 4525 return; 4526 ArrayRef<uint8_t> Contents = unwrapOrError( 4527 Obj->getSectionContents(this->dumper()->getDotAddrsigSec())); 4528 const uint8_t *Cur = Contents.begin(); 4529 const uint8_t *End = Contents.end(); 4530 while (Cur != End) { 4531 unsigned Size; 4532 const char *Err; 4533 uint64_t SymIndex = decodeULEB128(Cur, &Size, End, &Err); 4534 if (Err) 4535 reportError(Err); 4536 W.printNumber("Sym", this->dumper()->getStaticSymbolName(SymIndex), 4537 SymIndex); 4538 Cur += Size; 4539 } 4540 } 4541 4542 template <typename ELFT> 4543 static void printGNUNoteLLVMStyle(uint32_t NoteType, 4544 ArrayRef<uint8_t> Desc, 4545 ScopedPrinter &W) { 4546 switch (NoteType) { 4547 default: 4548 return; 4549 case ELF::NT_GNU_ABI_TAG: { 4550 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc); 4551 if (!AbiTag.IsValid) { 4552 W.printString("ABI", "<corrupt GNU_ABI_TAG>"); 4553 } else { 4554 W.printString("OS", AbiTag.OSName); 4555 W.printString("ABI", AbiTag.ABI); 4556 } 4557 break; 4558 } 4559 case ELF::NT_GNU_BUILD_ID: { 4560 W.printString("Build ID", getGNUBuildId(Desc)); 4561 break; 4562 } 4563 case ELF::NT_GNU_GOLD_VERSION: 4564 W.printString("Version", getGNUGoldVersion(Desc)); 4565 break; 4566 case ELF::NT_GNU_PROPERTY_TYPE_0: 4567 ListScope D(W, "Property"); 4568 for (const auto &Property : getGNUPropertyList<ELFT>(Desc)) 4569 W.printString(Property); 4570 break; 4571 } 4572 } 4573 4574 template <class ELFT> 4575 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 4576 ListScope L(W, "Notes"); 4577 const Elf_Ehdr *e = Obj->getHeader(); 4578 bool IsCore = e->e_type == ELF::ET_CORE; 4579 4580 auto PrintHeader = [&](const typename ELFT::Off Offset, 4581 const typename ELFT::Addr Size) { 4582 W.printHex("Offset", Offset); 4583 W.printHex("Size", Size); 4584 }; 4585 4586 auto ProcessNote = [&](const Elf_Note &Note) { 4587 DictScope D2(W, "Note"); 4588 StringRef Name = Note.getName(); 4589 ArrayRef<uint8_t> Descriptor = Note.getDesc(); 4590 Elf_Word Type = Note.getType(); 4591 4592 W.printString("Owner", Name); 4593 W.printHex("Data size", Descriptor.size()); 4594 if (Name == "GNU") { 4595 W.printString("Type", getGNUNoteTypeName(Type)); 4596 printGNUNoteLLVMStyle<ELFT>(Type, Descriptor, W); 4597 } else if (Name == "FreeBSD") { 4598 W.printString("Type", getFreeBSDNoteTypeName(Type)); 4599 } else if (Name == "AMD") { 4600 W.printString("Type", getAMDNoteTypeName(Type)); 4601 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor); 4602 if (!N.Type.empty()) 4603 W.printString(N.Type, N.Value); 4604 } else if (Name == "AMDGPU") { 4605 W.printString("Type", getAMDGPUNoteTypeName(Type)); 4606 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor); 4607 if (!N.Type.empty()) 4608 W.printString(N.Type, N.Value); 4609 } else { 4610 W.getOStream() << "Unknown note type: (" << format_hex(Type, 10) << ')'; 4611 } 4612 }; 4613 4614 if (IsCore) { 4615 for (const auto &P : unwrapOrError(Obj->program_headers())) { 4616 if (P.p_type != PT_NOTE) 4617 continue; 4618 DictScope D(W, "NoteSection"); 4619 PrintHeader(P.p_offset, P.p_filesz); 4620 Error Err = Error::success(); 4621 for (const auto &Note : Obj->notes(P, Err)) 4622 ProcessNote(Note); 4623 if (Err) 4624 error(std::move(Err)); 4625 } 4626 } else { 4627 for (const auto &S : unwrapOrError(Obj->sections())) { 4628 if (S.sh_type != SHT_NOTE) 4629 continue; 4630 DictScope D(W, "NoteSection"); 4631 PrintHeader(S.sh_offset, S.sh_size); 4632 Error Err = Error::success(); 4633 for (const auto &Note : Obj->notes(S, Err)) 4634 ProcessNote(Note); 4635 if (Err) 4636 error(std::move(Err)); 4637 } 4638 } 4639 } 4640 4641 template <class ELFT> 4642 void LLVMStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 4643 ListScope L(W, "LinkerOptions"); 4644 4645 for (const Elf_Shdr &Shdr : unwrapOrError(Obj->sections())) { 4646 if (Shdr.sh_type != ELF::SHT_LLVM_LINKER_OPTIONS) 4647 continue; 4648 4649 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Shdr)); 4650 for (const uint8_t *P = Contents.begin(), *E = Contents.end(); P < E; ) { 4651 StringRef Key = StringRef(reinterpret_cast<const char *>(P)); 4652 StringRef Value = 4653 StringRef(reinterpret_cast<const char *>(P) + Key.size() + 1); 4654 4655 W.printString(Key, Value); 4656 4657 P = P + Key.size() + Value.size() + 2; 4658 } 4659 } 4660 } 4661 4662 template <class ELFT> 4663 void LLVMStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 4664 auto PrintEntry = [&](const Elf_Addr *E) { 4665 W.printHex("Address", Parser.getGotAddress(E)); 4666 W.printNumber("Access", Parser.getGotOffset(E)); 4667 W.printHex("Initial", *E); 4668 }; 4669 4670 DictScope GS(W, Parser.IsStatic ? "Static GOT" : "Primary GOT"); 4671 4672 W.printHex("Canonical gp value", Parser.getGp()); 4673 { 4674 ListScope RS(W, "Reserved entries"); 4675 { 4676 DictScope D(W, "Entry"); 4677 PrintEntry(Parser.getGotLazyResolver()); 4678 W.printString("Purpose", StringRef("Lazy resolver")); 4679 } 4680 4681 if (Parser.getGotModulePointer()) { 4682 DictScope D(W, "Entry"); 4683 PrintEntry(Parser.getGotModulePointer()); 4684 W.printString("Purpose", StringRef("Module pointer (GNU extension)")); 4685 } 4686 } 4687 { 4688 ListScope LS(W, "Local entries"); 4689 for (auto &E : Parser.getLocalEntries()) { 4690 DictScope D(W, "Entry"); 4691 PrintEntry(&E); 4692 } 4693 } 4694 4695 if (Parser.IsStatic) 4696 return; 4697 4698 { 4699 ListScope GS(W, "Global entries"); 4700 for (auto &E : Parser.getGlobalEntries()) { 4701 DictScope D(W, "Entry"); 4702 4703 PrintEntry(&E); 4704 4705 const Elf_Sym *Sym = Parser.getGotSym(&E); 4706 W.printHex("Value", Sym->st_value); 4707 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4708 4709 unsigned SectionIndex = 0; 4710 StringRef SectionName; 4711 this->dumper()->getSectionNameIndex( 4712 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4713 SectionIndex); 4714 W.printHex("Section", SectionName, SectionIndex); 4715 4716 std::string SymName = this->dumper()->getFullSymbolName( 4717 Sym, this->dumper()->getDynamicStringTable(), true); 4718 W.printNumber("Name", SymName, Sym->st_name); 4719 } 4720 } 4721 4722 W.printNumber("Number of TLS and multi-GOT entries", 4723 uint64_t(Parser.getOtherEntries().size())); 4724 } 4725 4726 template <class ELFT> 4727 void LLVMStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 4728 auto PrintEntry = [&](const Elf_Addr *E) { 4729 W.printHex("Address", Parser.getPltAddress(E)); 4730 W.printHex("Initial", *E); 4731 }; 4732 4733 DictScope GS(W, "PLT GOT"); 4734 4735 { 4736 ListScope RS(W, "Reserved entries"); 4737 { 4738 DictScope D(W, "Entry"); 4739 PrintEntry(Parser.getPltLazyResolver()); 4740 W.printString("Purpose", StringRef("PLT lazy resolver")); 4741 } 4742 4743 if (auto E = Parser.getPltModulePointer()) { 4744 DictScope D(W, "Entry"); 4745 PrintEntry(E); 4746 W.printString("Purpose", StringRef("Module pointer")); 4747 } 4748 } 4749 { 4750 ListScope LS(W, "Entries"); 4751 for (auto &E : Parser.getPltEntries()) { 4752 DictScope D(W, "Entry"); 4753 PrintEntry(&E); 4754 4755 const Elf_Sym *Sym = Parser.getPltSym(&E); 4756 W.printHex("Value", Sym->st_value); 4757 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4758 4759 unsigned SectionIndex = 0; 4760 StringRef SectionName; 4761 this->dumper()->getSectionNameIndex( 4762 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4763 SectionIndex); 4764 W.printHex("Section", SectionName, SectionIndex); 4765 4766 std::string SymName = 4767 this->dumper()->getFullSymbolName(Sym, Parser.getPltStrTable(), true); 4768 W.printNumber("Name", SymName, Sym->st_name); 4769 } 4770 } 4771 } 4772