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/SmallString.h" 26 #include "llvm/ADT/SmallVector.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/StringExtras.h" 29 #include "llvm/ADT/StringRef.h" 30 #include "llvm/ADT/Twine.h" 31 #include "llvm/BinaryFormat/ELF.h" 32 #include "llvm/Object/ELF.h" 33 #include "llvm/Object/ELFObjectFile.h" 34 #include "llvm/Object/ELFTypes.h" 35 #include "llvm/Object/Error.h" 36 #include "llvm/Object/ObjectFile.h" 37 #include "llvm/Object/StackMapParser.h" 38 #include "llvm/Support/AMDGPUMetadata.h" 39 #include "llvm/Support/ARMAttributeParser.h" 40 #include "llvm/Support/ARMBuildAttributes.h" 41 #include "llvm/Support/Casting.h" 42 #include "llvm/Support/Compiler.h" 43 #include "llvm/Support/Endian.h" 44 #include "llvm/Support/ErrorHandling.h" 45 #include "llvm/Support/Format.h" 46 #include "llvm/Support/FormattedStream.h" 47 #include "llvm/Support/LEB128.h" 48 #include "llvm/Support/MathExtras.h" 49 #include "llvm/Support/MipsABIFlags.h" 50 #include "llvm/Support/ScopedPrinter.h" 51 #include "llvm/Support/raw_ostream.h" 52 #include <algorithm> 53 #include <cinttypes> 54 #include <cstddef> 55 #include <cstdint> 56 #include <cstdlib> 57 #include <iterator> 58 #include <memory> 59 #include <string> 60 #include <system_error> 61 #include <vector> 62 63 using namespace llvm; 64 using namespace llvm::object; 65 using namespace ELF; 66 67 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \ 68 case ns::enum: return #enum; 69 70 #define ENUM_ENT(enum, altName) \ 71 { #enum, altName, ELF::enum } 72 73 #define ENUM_ENT_1(enum) \ 74 { #enum, #enum, ELF::enum } 75 76 #define LLVM_READOBJ_PHDR_ENUM(ns, enum) \ 77 case ns::enum: \ 78 return std::string(#enum).substr(3); 79 80 #define TYPEDEF_ELF_TYPES(ELFT) \ 81 using ELFO = ELFFile<ELFT>; \ 82 using Elf_Addr = typename ELFT::Addr; \ 83 using Elf_Shdr = typename ELFT::Shdr; \ 84 using Elf_Sym = typename ELFT::Sym; \ 85 using Elf_Dyn = typename ELFT::Dyn; \ 86 using Elf_Dyn_Range = typename ELFT::DynRange; \ 87 using Elf_Rel = typename ELFT::Rel; \ 88 using Elf_Rela = typename ELFT::Rela; \ 89 using Elf_Relr = typename ELFT::Relr; \ 90 using Elf_Rel_Range = typename ELFT::RelRange; \ 91 using Elf_Rela_Range = typename ELFT::RelaRange; \ 92 using Elf_Relr_Range = typename ELFT::RelrRange; \ 93 using Elf_Phdr = typename ELFT::Phdr; \ 94 using Elf_Half = typename ELFT::Half; \ 95 using Elf_Ehdr = typename ELFT::Ehdr; \ 96 using Elf_Word = typename ELFT::Word; \ 97 using Elf_Hash = typename ELFT::Hash; \ 98 using Elf_GnuHash = typename ELFT::GnuHash; \ 99 using Elf_Note = typename ELFT::Note; \ 100 using Elf_Sym_Range = typename ELFT::SymRange; \ 101 using Elf_Versym = typename ELFT::Versym; \ 102 using Elf_Verneed = typename ELFT::Verneed; \ 103 using Elf_Vernaux = typename ELFT::Vernaux; \ 104 using Elf_Verdef = typename ELFT::Verdef; \ 105 using Elf_Verdaux = typename ELFT::Verdaux; \ 106 using Elf_CGProfile = typename ELFT::CGProfile; \ 107 using uintX_t = typename ELFT::uint; 108 109 namespace { 110 111 template <class ELFT> class DumpStyle; 112 113 /// Represents a contiguous uniform range in the file. We cannot just create a 114 /// range directly because when creating one of these from the .dynamic table 115 /// the size, entity size and virtual address are different entries in arbitrary 116 /// order (DT_REL, DT_RELSZ, DT_RELENT for example). 117 struct DynRegionInfo { 118 DynRegionInfo() = default; 119 DynRegionInfo(const void *A, uint64_t S, uint64_t ES) 120 : Addr(A), Size(S), EntSize(ES) {} 121 122 /// Address in current address space. 123 const void *Addr = nullptr; 124 /// Size in bytes of the region. 125 uint64_t Size = 0; 126 /// Size of each entity in the region. 127 uint64_t EntSize = 0; 128 129 template <typename Type> ArrayRef<Type> getAsArrayRef() const { 130 const Type *Start = reinterpret_cast<const Type *>(Addr); 131 if (!Start) 132 return {Start, Start}; 133 if (EntSize != sizeof(Type) || Size % EntSize) 134 reportError("Invalid entity size"); 135 return {Start, Start + (Size / EntSize)}; 136 } 137 }; 138 139 template<typename ELFT> 140 class ELFDumper : public ObjDumper { 141 public: 142 ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer); 143 144 void printFileHeaders() override; 145 void printSections() override; 146 void printRelocations() override; 147 void printDynamicRelocations() override; 148 void printSymbols() override; 149 void printDynamicSymbols() override; 150 void printUnwindInfo() override; 151 152 void printDynamicTable() override; 153 void printNeededLibraries() override; 154 void printProgramHeaders() override; 155 void printHashTable() override; 156 void printGnuHashTable() override; 157 void printLoadName() override; 158 void printVersionInfo() override; 159 void printGroupSections() override; 160 161 void printAttributes() override; 162 void printMipsPLTGOT() override; 163 void printMipsABIFlags() override; 164 void printMipsReginfo() override; 165 void printMipsOptions() override; 166 167 void printStackMap() const override; 168 169 void printHashHistogram() override; 170 171 void printCGProfile() override; 172 void printAddrsig() override; 173 174 void printNotes() override; 175 176 void printELFLinkerOptions() override; 177 178 private: 179 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle; 180 181 TYPEDEF_ELF_TYPES(ELFT) 182 183 DynRegionInfo checkDRI(DynRegionInfo DRI) { 184 if (DRI.Addr < Obj->base() || 185 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize()) 186 error(llvm::object::object_error::parse_failed); 187 return DRI; 188 } 189 190 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) { 191 return checkDRI({Obj->base() + P->p_offset, P->p_filesz, EntSize}); 192 } 193 194 DynRegionInfo createDRIFrom(const Elf_Shdr *S) { 195 return checkDRI({Obj->base() + S->sh_offset, S->sh_size, S->sh_entsize}); 196 } 197 198 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments); 199 200 void printValue(uint64_t Type, uint64_t Value); 201 202 StringRef getDynamicString(uint64_t Offset) const; 203 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb, 204 bool &IsDefault) const; 205 void LoadVersionMap() const; 206 void LoadVersionNeeds(const Elf_Shdr *ec) const; 207 void LoadVersionDefs(const Elf_Shdr *sec) const; 208 209 const ELFO *Obj; 210 DynRegionInfo DynRelRegion; 211 DynRegionInfo DynRelaRegion; 212 DynRegionInfo DynRelrRegion; 213 DynRegionInfo DynPLTRelRegion; 214 DynRegionInfo DynSymRegion; 215 DynRegionInfo DynamicTable; 216 StringRef DynamicStringTable; 217 StringRef SOName; 218 const Elf_Hash *HashTable = nullptr; 219 const Elf_GnuHash *GnuHashTable = nullptr; 220 const Elf_Shdr *DotSymtabSec = nullptr; 221 const Elf_Shdr *DotCGProfileSec = nullptr; 222 const Elf_Shdr *DotAddrsigSec = nullptr; 223 StringRef DynSymtabName; 224 ArrayRef<Elf_Word> ShndxTable; 225 226 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version 227 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r 228 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d 229 230 // Records for each version index the corresponding Verdef or Vernaux entry. 231 // This is filled the first time LoadVersionMap() is called. 232 class VersionMapEntry : public PointerIntPair<const void *, 1> { 233 public: 234 // If the integer is 0, this is an Elf_Verdef*. 235 // If the integer is 1, this is an Elf_Vernaux*. 236 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {} 237 VersionMapEntry(const Elf_Verdef *verdef) 238 : PointerIntPair<const void *, 1>(verdef, 0) {} 239 VersionMapEntry(const Elf_Vernaux *vernaux) 240 : PointerIntPair<const void *, 1>(vernaux, 1) {} 241 242 bool isNull() const { return getPointer() == nullptr; } 243 bool isVerdef() const { return !isNull() && getInt() == 0; } 244 bool isVernaux() const { return !isNull() && getInt() == 1; } 245 const Elf_Verdef *getVerdef() const { 246 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr; 247 } 248 const Elf_Vernaux *getVernaux() const { 249 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr; 250 } 251 }; 252 mutable SmallVector<VersionMapEntry, 16> VersionMap; 253 254 public: 255 Elf_Dyn_Range dynamic_table() const { 256 return DynamicTable.getAsArrayRef<Elf_Dyn>(); 257 } 258 259 Elf_Sym_Range dynamic_symbols() const { 260 return DynSymRegion.getAsArrayRef<Elf_Sym>(); 261 } 262 263 Elf_Rel_Range dyn_rels() const; 264 Elf_Rela_Range dyn_relas() const; 265 Elf_Relr_Range dyn_relrs() const; 266 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable, 267 bool IsDynamic) const; 268 void getSectionNameIndex(const Elf_Sym *Symbol, const Elf_Sym *FirstSym, 269 StringRef &SectionName, 270 unsigned &SectionIndex) const; 271 StringRef getStaticSymbolName(uint32_t Index) const; 272 273 void printSymbolsHelper(bool IsDynamic) const; 274 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; } 275 const Elf_Shdr *getDotCGProfileSec() const { return DotCGProfileSec; } 276 const Elf_Shdr *getDotAddrsigSec() const { return DotAddrsigSec; } 277 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; } 278 StringRef getDynamicStringTable() const { return DynamicStringTable; } 279 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; } 280 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; } 281 const DynRegionInfo &getDynRelrRegion() const { return DynRelrRegion; } 282 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; } 283 const Elf_Hash *getHashTable() const { return HashTable; } 284 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; } 285 }; 286 287 template <class ELFT> 288 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const { 289 StringRef StrTable, SymtabName; 290 size_t Entries = 0; 291 Elf_Sym_Range Syms(nullptr, nullptr); 292 if (IsDynamic) { 293 StrTable = DynamicStringTable; 294 Syms = dynamic_symbols(); 295 SymtabName = DynSymtabName; 296 if (DynSymRegion.Addr) 297 Entries = DynSymRegion.Size / DynSymRegion.EntSize; 298 } else { 299 if (!DotSymtabSec) 300 return; 301 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 302 Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 303 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec)); 304 Entries = DotSymtabSec->getEntityCount(); 305 } 306 if (Syms.begin() == Syms.end()) 307 return; 308 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries); 309 for (const auto &Sym : Syms) 310 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic); 311 } 312 313 template <class ELFT> class MipsGOTParser; 314 315 template <typename ELFT> class DumpStyle { 316 public: 317 using Elf_Shdr = typename ELFT::Shdr; 318 using Elf_Sym = typename ELFT::Sym; 319 320 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {} 321 virtual ~DumpStyle() = default; 322 323 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0; 324 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0; 325 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0; 326 virtual void printSections(const ELFFile<ELFT> *Obj) = 0; 327 virtual void printSymbols(const ELFFile<ELFT> *Obj) = 0; 328 virtual void printDynamicSymbols(const ELFFile<ELFT> *Obj) = 0; 329 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0; 330 virtual void printSymtabMessage(const ELFFile<ELFT> *obj, StringRef Name, 331 size_t Offset) {} 332 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol, 333 const Elf_Sym *FirstSym, StringRef StrTable, 334 bool IsDynamic) = 0; 335 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj) = 0; 336 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0; 337 virtual void printCGProfile(const ELFFile<ELFT> *Obj) = 0; 338 virtual void printAddrsig(const ELFFile<ELFT> *Obj) = 0; 339 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0; 340 virtual void printELFLinkerOptions(const ELFFile<ELFT> *Obj) = 0; 341 virtual void printMipsGOT(const MipsGOTParser<ELFT> &Parser) = 0; 342 virtual void printMipsPLT(const MipsGOTParser<ELFT> &Parser) = 0; 343 const ELFDumper<ELFT> *dumper() const { return Dumper; } 344 345 private: 346 const ELFDumper<ELFT> *Dumper; 347 }; 348 349 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> { 350 formatted_raw_ostream OS; 351 352 public: 353 TYPEDEF_ELF_TYPES(ELFT) 354 355 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 356 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {} 357 358 void printFileHeaders(const ELFO *Obj) override; 359 void printGroupSections(const ELFFile<ELFT> *Obj) override; 360 void printRelocations(const ELFO *Obj) override; 361 void printSections(const ELFO *Obj) override; 362 void printSymbols(const ELFO *Obj) override; 363 void printDynamicSymbols(const ELFO *Obj) override; 364 void printDynamicRelocations(const ELFO *Obj) override; 365 void printSymtabMessage(const ELFO *Obj, StringRef Name, 366 size_t Offset) override; 367 void printProgramHeaders(const ELFO *Obj) override; 368 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 369 void printCGProfile(const ELFFile<ELFT> *Obj) override; 370 void printAddrsig(const ELFFile<ELFT> *Obj) override; 371 void printNotes(const ELFFile<ELFT> *Obj) override; 372 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; 373 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; 374 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override; 375 376 private: 377 struct Field { 378 StringRef Str; 379 unsigned Column; 380 381 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {} 382 Field(unsigned Col) : Str(""), Column(Col) {} 383 }; 384 385 template <typename T, typename TEnum> 386 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) { 387 for (const auto &EnumItem : EnumValues) 388 if (EnumItem.Value == Value) 389 return EnumItem.AltName; 390 return to_hexString(Value, false); 391 } 392 393 formatted_raw_ostream &printField(struct Field F) { 394 if (F.Column != 0) 395 OS.PadToColumn(F.Column); 396 OS << F.Str; 397 OS.flush(); 398 return OS; 399 } 400 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym, 401 StringRef StrTable, uint32_t Bucket); 402 void printRelocHeader(unsigned SType); 403 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 404 const Elf_Rela &R, bool IsRela); 405 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 406 StringRef StrTable, bool IsDynamic) override; 407 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol, 408 const Elf_Sym *FirstSym); 409 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela); 410 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 411 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 412 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 413 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 414 }; 415 416 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> { 417 public: 418 TYPEDEF_ELF_TYPES(ELFT) 419 420 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 421 : DumpStyle<ELFT>(Dumper), W(W) {} 422 423 void printFileHeaders(const ELFO *Obj) override; 424 void printGroupSections(const ELFFile<ELFT> *Obj) override; 425 void printRelocations(const ELFO *Obj) override; 426 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj); 427 void printSections(const ELFO *Obj) override; 428 void printSymbols(const ELFO *Obj) override; 429 void printDynamicSymbols(const ELFO *Obj) override; 430 void printDynamicRelocations(const ELFO *Obj) override; 431 void printProgramHeaders(const ELFO *Obj) override; 432 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 433 void printCGProfile(const ELFFile<ELFT> *Obj) override; 434 void printAddrsig(const ELFFile<ELFT> *Obj) override; 435 void printNotes(const ELFFile<ELFT> *Obj) override; 436 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; 437 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; 438 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override; 439 440 private: 441 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab); 442 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel); 443 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 444 StringRef StrTable, bool IsDynamic) override; 445 446 ScopedPrinter &W; 447 }; 448 449 } // end anonymous namespace 450 451 namespace llvm { 452 453 template <class ELFT> 454 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj, 455 ScopedPrinter &Writer, 456 std::unique_ptr<ObjDumper> &Result) { 457 Result.reset(new ELFDumper<ELFT>(Obj, Writer)); 458 return readobj_error::success; 459 } 460 461 std::error_code createELFDumper(const object::ObjectFile *Obj, 462 ScopedPrinter &Writer, 463 std::unique_ptr<ObjDumper> &Result) { 464 // Little-endian 32-bit 465 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) 466 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 467 468 // Big-endian 32-bit 469 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) 470 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 471 472 // Little-endian 64-bit 473 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) 474 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 475 476 // Big-endian 64-bit 477 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) 478 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 479 480 return readobj_error::unsupported_obj_file_format; 481 } 482 483 } // end namespace llvm 484 485 // Iterate through the versions needed section, and place each Elf_Vernaux 486 // in the VersionMap according to its index. 487 template <class ELFT> 488 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const { 489 unsigned vn_size = sec->sh_size; // Size of section in bytes 490 unsigned vn_count = sec->sh_info; // Number of Verneed entries 491 const char *sec_start = (const char *)Obj->base() + sec->sh_offset; 492 const char *sec_end = sec_start + vn_size; 493 // The first Verneed entry is at the start of the section. 494 const char *p = sec_start; 495 for (unsigned i = 0; i < vn_count; i++) { 496 if (p + sizeof(Elf_Verneed) > sec_end) 497 report_fatal_error("Section ended unexpectedly while scanning " 498 "version needed records."); 499 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p); 500 if (vn->vn_version != ELF::VER_NEED_CURRENT) 501 report_fatal_error("Unexpected verneed version"); 502 // Iterate through the Vernaux entries 503 const char *paux = p + vn->vn_aux; 504 for (unsigned j = 0; j < vn->vn_cnt; j++) { 505 if (paux + sizeof(Elf_Vernaux) > sec_end) 506 report_fatal_error("Section ended unexpected while scanning auxiliary " 507 "version needed records."); 508 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux); 509 size_t index = vna->vna_other & ELF::VERSYM_VERSION; 510 if (index >= VersionMap.size()) 511 VersionMap.resize(index + 1); 512 VersionMap[index] = VersionMapEntry(vna); 513 paux += vna->vna_next; 514 } 515 p += vn->vn_next; 516 } 517 } 518 519 // Iterate through the version definitions, and place each Elf_Verdef 520 // in the VersionMap according to its index. 521 template <class ELFT> 522 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const { 523 unsigned vd_size = sec->sh_size; // Size of section in bytes 524 unsigned vd_count = sec->sh_info; // Number of Verdef entries 525 const char *sec_start = (const char *)Obj->base() + sec->sh_offset; 526 const char *sec_end = sec_start + vd_size; 527 // The first Verdef entry is at the start of the section. 528 const char *p = sec_start; 529 for (unsigned i = 0; i < vd_count; i++) { 530 if (p + sizeof(Elf_Verdef) > sec_end) 531 report_fatal_error("Section ended unexpectedly while scanning " 532 "version definitions."); 533 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p); 534 if (vd->vd_version != ELF::VER_DEF_CURRENT) 535 report_fatal_error("Unexpected verdef version"); 536 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION; 537 if (index >= VersionMap.size()) 538 VersionMap.resize(index + 1); 539 VersionMap[index] = VersionMapEntry(vd); 540 p += vd->vd_next; 541 } 542 } 543 544 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const { 545 // If there is no dynamic symtab or version table, there is nothing to do. 546 if (!DynSymRegion.Addr || !dot_gnu_version_sec) 547 return; 548 549 // Has the VersionMap already been loaded? 550 if (VersionMap.size() > 0) 551 return; 552 553 // The first two version indexes are reserved. 554 // Index 0 is LOCAL, index 1 is GLOBAL. 555 VersionMap.push_back(VersionMapEntry()); 556 VersionMap.push_back(VersionMapEntry()); 557 558 if (dot_gnu_version_d_sec) 559 LoadVersionDefs(dot_gnu_version_d_sec); 560 561 if (dot_gnu_version_r_sec) 562 LoadVersionNeeds(dot_gnu_version_r_sec); 563 } 564 565 template <typename ELFO, class ELFT> 566 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 567 const typename ELFO::Elf_Shdr *Sec, 568 ScopedPrinter &W) { 569 DictScope SS(W, "Version symbols"); 570 if (!Sec) 571 return; 572 StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 573 W.printNumber("Section Name", Name, Sec->sh_name); 574 W.printHex("Address", Sec->sh_addr); 575 W.printHex("Offset", Sec->sh_offset); 576 W.printNumber("Link", Sec->sh_link); 577 578 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset; 579 StringRef StrTable = Dumper->getDynamicStringTable(); 580 581 // Same number of entries in the dynamic symbol table (DT_SYMTAB). 582 ListScope Syms(W, "Symbols"); 583 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) { 584 DictScope S(W, "Symbol"); 585 std::string FullSymbolName = 586 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */); 587 W.printNumber("Version", *P); 588 W.printString("Name", FullSymbolName); 589 P += sizeof(typename ELFO::Elf_Half); 590 } 591 } 592 593 static const EnumEntry<unsigned> SymVersionFlags[] = { 594 {"Base", "BASE", VER_FLG_BASE}, 595 {"Weak", "WEAK", VER_FLG_WEAK}, 596 {"Info", "INFO", VER_FLG_INFO}}; 597 598 template <typename ELFO, class ELFT> 599 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper, 600 const ELFO *Obj, 601 const typename ELFO::Elf_Shdr *Sec, 602 ScopedPrinter &W) { 603 using VerDef = typename ELFO::Elf_Verdef; 604 using VerdAux = typename ELFO::Elf_Verdaux; 605 606 DictScope SD(W, "SHT_GNU_verdef"); 607 if (!Sec) 608 return; 609 610 // The number of entries in the section SHT_GNU_verdef 611 // is determined by DT_VERDEFNUM tag. 612 unsigned VerDefsNum = 0; 613 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) { 614 if (Dyn.d_tag == DT_VERDEFNUM) 615 VerDefsNum = Dyn.d_un.d_val; 616 } 617 const uint8_t *SecStartAddress = 618 (const uint8_t *)Obj->base() + Sec->sh_offset; 619 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size; 620 const uint8_t *P = SecStartAddress; 621 const typename ELFO::Elf_Shdr *StrTab = 622 unwrapOrError(Obj->getSection(Sec->sh_link)); 623 624 while (VerDefsNum--) { 625 if (P + sizeof(VerDef) > SecEndAddress) 626 report_fatal_error("invalid offset in the section"); 627 628 auto *VD = reinterpret_cast<const VerDef *>(P); 629 DictScope Def(W, "Definition"); 630 W.printNumber("Version", VD->vd_version); 631 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags)); 632 W.printNumber("Index", VD->vd_ndx); 633 W.printNumber("Hash", VD->vd_hash); 634 W.printString("Name", 635 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 636 VD->getAux()->vda_name))); 637 if (!VD->vd_cnt) 638 report_fatal_error("at least one definition string must exist"); 639 if (VD->vd_cnt > 2) 640 report_fatal_error("more than one predecessor is not expected"); 641 642 if (VD->vd_cnt == 2) { 643 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next; 644 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux); 645 W.printString("Predecessor", 646 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 647 Aux->vda_name))); 648 } 649 650 P += VD->vd_next; 651 } 652 } 653 654 template <typename ELFO, class ELFT> 655 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper, 656 const ELFO *Obj, 657 const typename ELFO::Elf_Shdr *Sec, 658 ScopedPrinter &W) { 659 using VerNeed = typename ELFO::Elf_Verneed; 660 using VernAux = typename ELFO::Elf_Vernaux; 661 662 DictScope SD(W, "SHT_GNU_verneed"); 663 if (!Sec) 664 return; 665 666 unsigned VerNeedNum = 0; 667 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) 668 if (Dyn.d_tag == DT_VERNEEDNUM) 669 VerNeedNum = Dyn.d_un.d_val; 670 671 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset; 672 const typename ELFO::Elf_Shdr *StrTab = 673 unwrapOrError(Obj->getSection(Sec->sh_link)); 674 675 const uint8_t *P = SecData; 676 for (unsigned I = 0; I < VerNeedNum; ++I) { 677 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P); 678 DictScope Entry(W, "Dependency"); 679 W.printNumber("Version", Need->vn_version); 680 W.printNumber("Count", Need->vn_cnt); 681 W.printString("FileName", 682 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 683 Need->vn_file))); 684 685 const uint8_t *PAux = P + Need->vn_aux; 686 for (unsigned J = 0; J < Need->vn_cnt; ++J) { 687 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux); 688 DictScope Entry(W, "Entry"); 689 W.printNumber("Hash", Aux->vna_hash); 690 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags)); 691 W.printNumber("Index", Aux->vna_other); 692 W.printString("Name", 693 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 694 Aux->vna_name))); 695 PAux += Aux->vna_next; 696 } 697 P += Need->vn_next; 698 } 699 } 700 701 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() { 702 // Dump version symbol section. 703 printVersionSymbolSection(this, Obj, dot_gnu_version_sec, W); 704 705 // Dump version definition section. 706 printVersionDefinitionSection(this, Obj, dot_gnu_version_d_sec, W); 707 708 // Dump version dependency section. 709 printVersionDependencySection(this, Obj, dot_gnu_version_r_sec, W); 710 } 711 712 template <typename ELFT> 713 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, 714 const Elf_Sym *symb, 715 bool &IsDefault) const { 716 // This is a dynamic symbol. Look in the GNU symbol version table. 717 if (!dot_gnu_version_sec) { 718 // No version table. 719 IsDefault = false; 720 return StringRef(""); 721 } 722 723 // Determine the position in the symbol table of this entry. 724 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) - 725 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) / 726 sizeof(Elf_Sym); 727 728 // Get the corresponding version index entry 729 const Elf_Versym *vs = unwrapOrError( 730 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index)); 731 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION; 732 733 // Special markers for unversioned symbols. 734 if (version_index == ELF::VER_NDX_LOCAL || 735 version_index == ELF::VER_NDX_GLOBAL) { 736 IsDefault = false; 737 return StringRef(""); 738 } 739 740 // Lookup this symbol in the version table 741 LoadVersionMap(); 742 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull()) 743 reportError("Invalid version entry"); 744 const VersionMapEntry &entry = VersionMap[version_index]; 745 746 // Get the version name string 747 size_t name_offset; 748 if (entry.isVerdef()) { 749 // The first Verdaux entry holds the name. 750 name_offset = entry.getVerdef()->getAux()->vda_name; 751 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN); 752 } else { 753 name_offset = entry.getVernaux()->vna_name; 754 IsDefault = false; 755 } 756 if (name_offset >= StrTab.size()) 757 reportError("Invalid string offset"); 758 return StringRef(StrTab.data() + name_offset); 759 } 760 761 template <typename ELFT> 762 StringRef ELFDumper<ELFT>::getStaticSymbolName(uint32_t Index) const { 763 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 764 Elf_Sym_Range Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 765 if (Index >= Syms.size()) 766 reportError("Invalid symbol index"); 767 const Elf_Sym *Sym = &Syms[Index]; 768 return unwrapOrError(Sym->getName(StrTable)); 769 } 770 771 template <typename ELFT> 772 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol, 773 StringRef StrTable, 774 bool IsDynamic) const { 775 StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable)); 776 if (!IsDynamic) 777 return SymbolName; 778 779 std::string FullSymbolName(SymbolName); 780 781 bool IsDefault; 782 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault); 783 FullSymbolName += (IsDefault ? "@@" : "@"); 784 FullSymbolName += Version; 785 return FullSymbolName; 786 } 787 788 template <typename ELFT> 789 void ELFDumper<ELFT>::getSectionNameIndex(const Elf_Sym *Symbol, 790 const Elf_Sym *FirstSym, 791 StringRef &SectionName, 792 unsigned &SectionIndex) const { 793 SectionIndex = Symbol->st_shndx; 794 if (Symbol->isUndefined()) 795 SectionName = "Undefined"; 796 else if (Symbol->isProcessorSpecific()) 797 SectionName = "Processor Specific"; 798 else if (Symbol->isOSSpecific()) 799 SectionName = "Operating System Specific"; 800 else if (Symbol->isAbsolute()) 801 SectionName = "Absolute"; 802 else if (Symbol->isCommon()) 803 SectionName = "Common"; 804 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX) 805 SectionName = "Reserved"; 806 else { 807 if (SectionIndex == SHN_XINDEX) 808 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 809 Symbol, FirstSym, ShndxTable)); 810 const typename ELFT::Shdr *Sec = 811 unwrapOrError(Obj->getSection(SectionIndex)); 812 SectionName = unwrapOrError(Obj->getSectionName(Sec)); 813 } 814 } 815 816 template <class ELFO> 817 static const typename ELFO::Elf_Shdr * 818 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) { 819 for (const auto &Shdr : unwrapOrError(Obj->sections())) 820 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0) 821 return &Shdr; 822 return nullptr; 823 } 824 825 template <class ELFO> 826 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj, 827 StringRef Name) { 828 for (const auto &Shdr : unwrapOrError(Obj.sections())) { 829 if (Name == unwrapOrError(Obj.getSectionName(&Shdr))) 830 return &Shdr; 831 } 832 return nullptr; 833 } 834 835 static const EnumEntry<unsigned> ElfClass[] = { 836 {"None", "none", ELF::ELFCLASSNONE}, 837 {"32-bit", "ELF32", ELF::ELFCLASS32}, 838 {"64-bit", "ELF64", ELF::ELFCLASS64}, 839 }; 840 841 static const EnumEntry<unsigned> ElfDataEncoding[] = { 842 {"None", "none", ELF::ELFDATANONE}, 843 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB}, 844 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB}, 845 }; 846 847 static const EnumEntry<unsigned> ElfObjectFileType[] = { 848 {"None", "NONE (none)", ELF::ET_NONE}, 849 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL}, 850 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC}, 851 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN}, 852 {"Core", "CORE (Core file)", ELF::ET_CORE}, 853 }; 854 855 static const EnumEntry<unsigned> ElfOSABI[] = { 856 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE}, 857 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX}, 858 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD}, 859 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX}, 860 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD}, 861 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS}, 862 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX}, 863 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX}, 864 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD}, 865 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64}, 866 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO}, 867 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD}, 868 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS}, 869 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK}, 870 {"AROS", "AROS", ELF::ELFOSABI_AROS}, 871 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS}, 872 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI}, 873 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE} 874 }; 875 876 static const EnumEntry<unsigned> AMDGPUElfOSABI[] = { 877 {"AMDGPU_HSA", "AMDGPU - HSA", ELF::ELFOSABI_AMDGPU_HSA}, 878 {"AMDGPU_PAL", "AMDGPU - PAL", ELF::ELFOSABI_AMDGPU_PAL}, 879 {"AMDGPU_MESA3D", "AMDGPU - MESA3D", ELF::ELFOSABI_AMDGPU_MESA3D} 880 }; 881 882 static const EnumEntry<unsigned> ARMElfOSABI[] = { 883 {"ARM", "ARM", ELF::ELFOSABI_ARM} 884 }; 885 886 static const EnumEntry<unsigned> C6000ElfOSABI[] = { 887 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI}, 888 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX} 889 }; 890 891 static const EnumEntry<unsigned> ElfMachineType[] = { 892 ENUM_ENT(EM_NONE, "None"), 893 ENUM_ENT(EM_M32, "WE32100"), 894 ENUM_ENT(EM_SPARC, "Sparc"), 895 ENUM_ENT(EM_386, "Intel 80386"), 896 ENUM_ENT(EM_68K, "MC68000"), 897 ENUM_ENT(EM_88K, "MC88000"), 898 ENUM_ENT(EM_IAMCU, "EM_IAMCU"), 899 ENUM_ENT(EM_860, "Intel 80860"), 900 ENUM_ENT(EM_MIPS, "MIPS R3000"), 901 ENUM_ENT(EM_S370, "IBM System/370"), 902 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"), 903 ENUM_ENT(EM_PARISC, "HPPA"), 904 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"), 905 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"), 906 ENUM_ENT(EM_960, "Intel 80960"), 907 ENUM_ENT(EM_PPC, "PowerPC"), 908 ENUM_ENT(EM_PPC64, "PowerPC64"), 909 ENUM_ENT(EM_S390, "IBM S/390"), 910 ENUM_ENT(EM_SPU, "SPU"), 911 ENUM_ENT(EM_V800, "NEC V800 series"), 912 ENUM_ENT(EM_FR20, "Fujistsu FR20"), 913 ENUM_ENT(EM_RH32, "TRW RH-32"), 914 ENUM_ENT(EM_RCE, "Motorola RCE"), 915 ENUM_ENT(EM_ARM, "ARM"), 916 ENUM_ENT(EM_ALPHA, "EM_ALPHA"), 917 ENUM_ENT(EM_SH, "Hitachi SH"), 918 ENUM_ENT(EM_SPARCV9, "Sparc v9"), 919 ENUM_ENT(EM_TRICORE, "Siemens Tricore"), 920 ENUM_ENT(EM_ARC, "ARC"), 921 ENUM_ENT(EM_H8_300, "Hitachi H8/300"), 922 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"), 923 ENUM_ENT(EM_H8S, "Hitachi H8S"), 924 ENUM_ENT(EM_H8_500, "Hitachi H8/500"), 925 ENUM_ENT(EM_IA_64, "Intel IA-64"), 926 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"), 927 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"), 928 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"), 929 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"), 930 ENUM_ENT(EM_PCP, "Siemens PCP"), 931 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"), 932 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"), 933 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"), 934 ENUM_ENT(EM_ME16, "Toyota ME16 processor"), 935 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"), 936 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"), 937 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"), 938 ENUM_ENT(EM_PDSP, "Sony DSP processor"), 939 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"), 940 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"), 941 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"), 942 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"), 943 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"), 944 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"), 945 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"), 946 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"), 947 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"), 948 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"), 949 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"), 950 ENUM_ENT(EM_VAX, "Digital VAX"), 951 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"), 952 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"), 953 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"), 954 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"), 955 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"), 956 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"), 957 ENUM_ENT(EM_PRISM, "Vitesse Prism"), 958 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"), 959 ENUM_ENT(EM_FR30, "Fujitsu FR30"), 960 ENUM_ENT(EM_D10V, "Mitsubishi D10V"), 961 ENUM_ENT(EM_D30V, "Mitsubishi D30V"), 962 ENUM_ENT(EM_V850, "NEC v850"), 963 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"), 964 ENUM_ENT(EM_MN10300, "Matsushita MN10300"), 965 ENUM_ENT(EM_MN10200, "Matsushita MN10200"), 966 ENUM_ENT(EM_PJ, "picoJava"), 967 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"), 968 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"), 969 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"), 970 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"), 971 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"), 972 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"), 973 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"), 974 ENUM_ENT(EM_SNP1K, "EM_SNP1K"), 975 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"), 976 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"), 977 ENUM_ENT(EM_MAX, "MAX Processor"), 978 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"), 979 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"), 980 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"), 981 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"), 982 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"), 983 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"), 984 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"), 985 ENUM_ENT(EM_UNICORE, "Unicore"), 986 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"), 987 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"), 988 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"), 989 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"), 990 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"), 991 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"), 992 ENUM_ENT(EM_M16C, "Renesas M16C"), 993 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"), 994 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"), 995 ENUM_ENT(EM_M32C, "Renesas M32C"), 996 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"), 997 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"), 998 ENUM_ENT(EM_SHARC, "EM_SHARC"), 999 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"), 1000 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"), 1001 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"), 1002 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"), 1003 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"), 1004 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"), 1005 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"), 1006 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"), 1007 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"), 1008 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"), 1009 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"), 1010 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"), 1011 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"), 1012 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"), 1013 ENUM_ENT(EM_8051, "Intel 8051 and variants"), 1014 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"), 1015 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"), 1016 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"), 1017 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"), 1018 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"), 1019 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"), 1020 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"), 1021 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"), 1022 ENUM_ENT(EM_RX, "Renesas RX"), 1023 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"), 1024 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"), 1025 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"), 1026 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"), 1027 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"), 1028 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"), 1029 ENUM_ENT(EM_L10M, "EM_L10M"), 1030 ENUM_ENT(EM_K10M, "EM_K10M"), 1031 ENUM_ENT(EM_AARCH64, "AArch64"), 1032 ENUM_ENT(EM_AVR32, "Atmel Corporation 32-bit microprocessor family"), 1033 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"), 1034 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"), 1035 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"), 1036 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"), 1037 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"), 1038 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"), 1039 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"), 1040 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"), 1041 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"), 1042 ENUM_ENT(EM_OPEN8, "EM_OPEN8"), 1043 ENUM_ENT(EM_RL78, "Renesas RL78"), 1044 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"), 1045 ENUM_ENT(EM_78KOR, "EM_78KOR"), 1046 ENUM_ENT(EM_56800EX, "EM_56800EX"), 1047 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"), 1048 ENUM_ENT(EM_RISCV, "RISC-V"), 1049 ENUM_ENT(EM_LANAI, "EM_LANAI"), 1050 ENUM_ENT(EM_BPF, "EM_BPF"), 1051 }; 1052 1053 static const EnumEntry<unsigned> ElfSymbolBindings[] = { 1054 {"Local", "LOCAL", ELF::STB_LOCAL}, 1055 {"Global", "GLOBAL", ELF::STB_GLOBAL}, 1056 {"Weak", "WEAK", ELF::STB_WEAK}, 1057 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}}; 1058 1059 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = { 1060 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT}, 1061 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL}, 1062 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN}, 1063 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}}; 1064 1065 static const EnumEntry<unsigned> ElfSymbolTypes[] = { 1066 {"None", "NOTYPE", ELF::STT_NOTYPE}, 1067 {"Object", "OBJECT", ELF::STT_OBJECT}, 1068 {"Function", "FUNC", ELF::STT_FUNC}, 1069 {"Section", "SECTION", ELF::STT_SECTION}, 1070 {"File", "FILE", ELF::STT_FILE}, 1071 {"Common", "COMMON", ELF::STT_COMMON}, 1072 {"TLS", "TLS", ELF::STT_TLS}, 1073 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}}; 1074 1075 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = { 1076 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL } 1077 }; 1078 1079 static const char *getGroupType(uint32_t Flag) { 1080 if (Flag & ELF::GRP_COMDAT) 1081 return "COMDAT"; 1082 else 1083 return "(unknown)"; 1084 } 1085 1086 static const EnumEntry<unsigned> ElfSectionFlags[] = { 1087 ENUM_ENT(SHF_WRITE, "W"), 1088 ENUM_ENT(SHF_ALLOC, "A"), 1089 ENUM_ENT(SHF_EXCLUDE, "E"), 1090 ENUM_ENT(SHF_EXECINSTR, "X"), 1091 ENUM_ENT(SHF_MERGE, "M"), 1092 ENUM_ENT(SHF_STRINGS, "S"), 1093 ENUM_ENT(SHF_INFO_LINK, "I"), 1094 ENUM_ENT(SHF_LINK_ORDER, "L"), 1095 ENUM_ENT(SHF_OS_NONCONFORMING, "o"), 1096 ENUM_ENT(SHF_GROUP, "G"), 1097 ENUM_ENT(SHF_TLS, "T"), 1098 ENUM_ENT(SHF_MASKOS, "o"), 1099 ENUM_ENT(SHF_MASKPROC, "p"), 1100 ENUM_ENT_1(SHF_COMPRESSED), 1101 }; 1102 1103 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = { 1104 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION), 1105 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION) 1106 }; 1107 1108 static const EnumEntry<unsigned> ElfARMSectionFlags[] = { 1109 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE) 1110 }; 1111 1112 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = { 1113 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL) 1114 }; 1115 1116 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = { 1117 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES), 1118 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ), 1119 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ), 1120 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP), 1121 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ), 1122 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ), 1123 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ), 1124 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING ) 1125 }; 1126 1127 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = { 1128 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE) 1129 }; 1130 1131 static std::string getGNUFlags(uint64_t Flags) { 1132 std::string Str; 1133 for (auto Entry : ElfSectionFlags) { 1134 uint64_t Flag = Entry.Value & Flags; 1135 Flags &= ~Entry.Value; 1136 switch (Flag) { 1137 case ELF::SHF_WRITE: 1138 case ELF::SHF_ALLOC: 1139 case ELF::SHF_EXECINSTR: 1140 case ELF::SHF_MERGE: 1141 case ELF::SHF_STRINGS: 1142 case ELF::SHF_INFO_LINK: 1143 case ELF::SHF_LINK_ORDER: 1144 case ELF::SHF_OS_NONCONFORMING: 1145 case ELF::SHF_GROUP: 1146 case ELF::SHF_TLS: 1147 case ELF::SHF_EXCLUDE: 1148 Str += Entry.AltName; 1149 break; 1150 default: 1151 if (Flag & ELF::SHF_MASKOS) 1152 Str += "o"; 1153 else if (Flag & ELF::SHF_MASKPROC) 1154 Str += "p"; 1155 else if (Flag) 1156 Str += "x"; 1157 } 1158 } 1159 return Str; 1160 } 1161 1162 static const char *getElfSegmentType(unsigned Arch, unsigned Type) { 1163 // Check potentially overlapped processor-specific 1164 // program header type. 1165 switch (Arch) { 1166 case ELF::EM_ARM: 1167 switch (Type) { 1168 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX); 1169 } 1170 case ELF::EM_MIPS: 1171 case ELF::EM_MIPS_RS3_LE: 1172 switch (Type) { 1173 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO); 1174 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC); 1175 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS); 1176 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS); 1177 } 1178 } 1179 1180 switch (Type) { 1181 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL ); 1182 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD ); 1183 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC); 1184 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP ); 1185 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE ); 1186 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB ); 1187 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR ); 1188 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS ); 1189 1190 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME); 1191 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND); 1192 1193 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK); 1194 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO); 1195 1196 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE); 1197 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED); 1198 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA); 1199 1200 default: return ""; 1201 } 1202 } 1203 1204 static std::string getElfPtType(unsigned Arch, unsigned Type) { 1205 switch (Type) { 1206 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL) 1207 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD) 1208 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC) 1209 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP) 1210 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE) 1211 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB) 1212 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR) 1213 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS) 1214 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME) 1215 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND) 1216 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK) 1217 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO) 1218 default: 1219 // All machine specific PT_* types 1220 switch (Arch) { 1221 case ELF::EM_ARM: 1222 if (Type == ELF::PT_ARM_EXIDX) 1223 return "EXIDX"; 1224 return ""; 1225 case ELF::EM_MIPS: 1226 case ELF::EM_MIPS_RS3_LE: 1227 switch (Type) { 1228 case PT_MIPS_REGINFO: 1229 return "REGINFO"; 1230 case PT_MIPS_RTPROC: 1231 return "RTPROC"; 1232 case PT_MIPS_OPTIONS: 1233 return "OPTIONS"; 1234 case PT_MIPS_ABIFLAGS: 1235 return "ABIFLAGS"; 1236 } 1237 return ""; 1238 } 1239 } 1240 return std::string("<unknown>: ") + to_string(format_hex(Type, 1)); 1241 } 1242 1243 static const EnumEntry<unsigned> ElfSegmentFlags[] = { 1244 LLVM_READOBJ_ENUM_ENT(ELF, PF_X), 1245 LLVM_READOBJ_ENUM_ENT(ELF, PF_W), 1246 LLVM_READOBJ_ENUM_ENT(ELF, PF_R) 1247 }; 1248 1249 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = { 1250 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER), 1251 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC), 1252 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC), 1253 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2), 1254 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE), 1255 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64), 1256 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008), 1257 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32), 1258 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64), 1259 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32), 1260 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64), 1261 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900), 1262 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010), 1263 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100), 1264 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650), 1265 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120), 1266 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111), 1267 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1), 1268 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON), 1269 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR), 1270 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2), 1271 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3), 1272 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400), 1273 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900), 1274 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500), 1275 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000), 1276 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E), 1277 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F), 1278 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A), 1279 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS), 1280 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16), 1281 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX), 1282 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1), 1283 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2), 1284 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3), 1285 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4), 1286 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5), 1287 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32), 1288 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64), 1289 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2), 1290 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2), 1291 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6), 1292 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6) 1293 }; 1294 1295 static const EnumEntry<unsigned> ElfHeaderAMDGPUFlags[] = { 1296 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_NONE), 1297 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R600), 1298 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R630), 1299 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RS880), 1300 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV670), 1301 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV710), 1302 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV730), 1303 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV770), 1304 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CEDAR), 1305 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CYPRESS), 1306 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_JUNIPER), 1307 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_REDWOOD), 1308 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_SUMO), 1309 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_BARTS), 1310 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAICOS), 1311 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAYMAN), 1312 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_TURKS), 1313 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX600), 1314 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX601), 1315 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX700), 1316 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX701), 1317 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX702), 1318 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX703), 1319 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX704), 1320 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX801), 1321 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX802), 1322 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX803), 1323 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX810), 1324 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX900), 1325 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX902), 1326 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX904), 1327 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX906), 1328 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_XNACK) 1329 }; 1330 1331 static const EnumEntry<unsigned> ElfHeaderRISCVFlags[] = { 1332 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_RVC), 1333 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_SINGLE), 1334 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_DOUBLE), 1335 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_QUAD), 1336 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_RVE) 1337 }; 1338 1339 static const EnumEntry<unsigned> ElfSymOtherFlags[] = { 1340 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL), 1341 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN), 1342 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED) 1343 }; 1344 1345 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = { 1346 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1347 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1348 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC), 1349 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS) 1350 }; 1351 1352 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = { 1353 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1354 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1355 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16) 1356 }; 1357 1358 static const char *getElfMipsOptionsOdkType(unsigned Odk) { 1359 switch (Odk) { 1360 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL); 1361 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO); 1362 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS); 1363 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD); 1364 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH); 1365 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL); 1366 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS); 1367 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND); 1368 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR); 1369 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP); 1370 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT); 1371 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE); 1372 default: 1373 return "Unknown"; 1374 } 1375 } 1376 1377 template <typename ELFT> 1378 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer) 1379 : ObjDumper(Writer), Obj(Obj) { 1380 SmallVector<const Elf_Phdr *, 4> LoadSegments; 1381 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 1382 if (Phdr.p_type == ELF::PT_DYNAMIC) { 1383 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn)); 1384 continue; 1385 } 1386 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0) 1387 continue; 1388 LoadSegments.push_back(&Phdr); 1389 } 1390 1391 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1392 switch (Sec.sh_type) { 1393 case ELF::SHT_SYMTAB: 1394 if (DotSymtabSec != nullptr) 1395 reportError("Multiple SHT_SYMTAB"); 1396 DotSymtabSec = &Sec; 1397 break; 1398 case ELF::SHT_DYNSYM: 1399 if (DynSymRegion.Size) 1400 reportError("Multiple SHT_DYNSYM"); 1401 DynSymRegion = createDRIFrom(&Sec); 1402 // This is only used (if Elf_Shdr present)for naming section in GNU style 1403 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec)); 1404 DynamicStringTable = unwrapOrError(Obj->getStringTableForSymtab(Sec)); 1405 break; 1406 case ELF::SHT_SYMTAB_SHNDX: 1407 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec)); 1408 break; 1409 case ELF::SHT_GNU_versym: 1410 if (dot_gnu_version_sec != nullptr) 1411 reportError("Multiple SHT_GNU_versym"); 1412 dot_gnu_version_sec = &Sec; 1413 break; 1414 case ELF::SHT_GNU_verdef: 1415 if (dot_gnu_version_d_sec != nullptr) 1416 reportError("Multiple SHT_GNU_verdef"); 1417 dot_gnu_version_d_sec = &Sec; 1418 break; 1419 case ELF::SHT_GNU_verneed: 1420 if (dot_gnu_version_r_sec != nullptr) 1421 reportError("Multiple SHT_GNU_verneed"); 1422 dot_gnu_version_r_sec = &Sec; 1423 break; 1424 case ELF::SHT_LLVM_CALL_GRAPH_PROFILE: 1425 if (DotCGProfileSec != nullptr) 1426 reportError("Multiple .note.llvm.cgprofile"); 1427 DotCGProfileSec = &Sec; 1428 break; 1429 case ELF::SHT_LLVM_ADDRSIG: 1430 if (DotAddrsigSec != nullptr) 1431 reportError("Multiple .llvm_addrsig"); 1432 DotAddrsigSec = &Sec; 1433 break; 1434 } 1435 } 1436 1437 parseDynamicTable(LoadSegments); 1438 1439 if (opts::Output == opts::GNU) 1440 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this)); 1441 else 1442 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this)); 1443 } 1444 1445 template <typename ELFT> 1446 void ELFDumper<ELFT>::parseDynamicTable( 1447 ArrayRef<const Elf_Phdr *> LoadSegments) { 1448 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * { 1449 const Elf_Phdr *const *I = 1450 std::upper_bound(LoadSegments.begin(), LoadSegments.end(), VAddr, 1451 [](uint64_t VAddr, const Elf_Phdr_Impl<ELFT> *Phdr) { 1452 return VAddr < Phdr->p_vaddr; 1453 }); 1454 if (I == LoadSegments.begin()) 1455 report_fatal_error("Virtual address is not in any segment"); 1456 --I; 1457 const Elf_Phdr &Phdr = **I; 1458 uint64_t Delta = VAddr - Phdr.p_vaddr; 1459 if (Delta >= Phdr.p_filesz) 1460 report_fatal_error("Virtual address is not in any segment"); 1461 return Obj->base() + Phdr.p_offset + Delta; 1462 }; 1463 1464 uint64_t SONameOffset = 0; 1465 const char *StringTableBegin = nullptr; 1466 uint64_t StringTableSize = 0; 1467 for (const Elf_Dyn &Dyn : dynamic_table()) { 1468 switch (Dyn.d_tag) { 1469 case ELF::DT_HASH: 1470 HashTable = 1471 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr())); 1472 break; 1473 case ELF::DT_GNU_HASH: 1474 GnuHashTable = 1475 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr())); 1476 break; 1477 case ELF::DT_STRTAB: 1478 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr()); 1479 break; 1480 case ELF::DT_STRSZ: 1481 StringTableSize = Dyn.getVal(); 1482 break; 1483 case ELF::DT_SYMTAB: 1484 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr()); 1485 DynSymRegion.EntSize = sizeof(Elf_Sym); 1486 break; 1487 case ELF::DT_RELA: 1488 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr()); 1489 break; 1490 case ELF::DT_RELASZ: 1491 DynRelaRegion.Size = Dyn.getVal(); 1492 break; 1493 case ELF::DT_RELAENT: 1494 DynRelaRegion.EntSize = Dyn.getVal(); 1495 break; 1496 case ELF::DT_SONAME: 1497 SONameOffset = Dyn.getVal(); 1498 break; 1499 case ELF::DT_REL: 1500 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1501 break; 1502 case ELF::DT_RELSZ: 1503 DynRelRegion.Size = Dyn.getVal(); 1504 break; 1505 case ELF::DT_RELENT: 1506 DynRelRegion.EntSize = Dyn.getVal(); 1507 break; 1508 case ELF::DT_RELR: 1509 case ELF::DT_ANDROID_RELR: 1510 DynRelrRegion.Addr = toMappedAddr(Dyn.getPtr()); 1511 break; 1512 case ELF::DT_RELRSZ: 1513 case ELF::DT_ANDROID_RELRSZ: 1514 DynRelrRegion.Size = Dyn.getVal(); 1515 break; 1516 case ELF::DT_RELRENT: 1517 case ELF::DT_ANDROID_RELRENT: 1518 DynRelrRegion.EntSize = Dyn.getVal(); 1519 break; 1520 case ELF::DT_PLTREL: 1521 if (Dyn.getVal() == DT_REL) 1522 DynPLTRelRegion.EntSize = sizeof(Elf_Rel); 1523 else if (Dyn.getVal() == DT_RELA) 1524 DynPLTRelRegion.EntSize = sizeof(Elf_Rela); 1525 else 1526 reportError(Twine("unknown DT_PLTREL value of ") + 1527 Twine((uint64_t)Dyn.getVal())); 1528 break; 1529 case ELF::DT_JMPREL: 1530 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1531 break; 1532 case ELF::DT_PLTRELSZ: 1533 DynPLTRelRegion.Size = Dyn.getVal(); 1534 break; 1535 } 1536 } 1537 if (StringTableBegin) 1538 DynamicStringTable = StringRef(StringTableBegin, StringTableSize); 1539 if (SONameOffset) 1540 SOName = getDynamicString(SONameOffset); 1541 } 1542 1543 template <typename ELFT> 1544 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const { 1545 return DynRelRegion.getAsArrayRef<Elf_Rel>(); 1546 } 1547 1548 template <typename ELFT> 1549 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const { 1550 return DynRelaRegion.getAsArrayRef<Elf_Rela>(); 1551 } 1552 1553 template <typename ELFT> 1554 typename ELFDumper<ELFT>::Elf_Relr_Range ELFDumper<ELFT>::dyn_relrs() const { 1555 return DynRelrRegion.getAsArrayRef<Elf_Relr>(); 1556 } 1557 1558 template<class ELFT> 1559 void ELFDumper<ELFT>::printFileHeaders() { 1560 ELFDumperStyle->printFileHeaders(Obj); 1561 } 1562 1563 template<class ELFT> 1564 void ELFDumper<ELFT>::printSections() { 1565 ELFDumperStyle->printSections(Obj); 1566 } 1567 1568 template<class ELFT> 1569 void ELFDumper<ELFT>::printRelocations() { 1570 ELFDumperStyle->printRelocations(Obj); 1571 } 1572 1573 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() { 1574 ELFDumperStyle->printProgramHeaders(Obj); 1575 } 1576 1577 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() { 1578 ELFDumperStyle->printDynamicRelocations(Obj); 1579 } 1580 1581 template<class ELFT> 1582 void ELFDumper<ELFT>::printSymbols() { 1583 ELFDumperStyle->printSymbols(Obj); 1584 } 1585 1586 template<class ELFT> 1587 void ELFDumper<ELFT>::printDynamicSymbols() { 1588 ELFDumperStyle->printDynamicSymbols(Obj); 1589 } 1590 1591 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() { 1592 ELFDumperStyle->printHashHistogram(Obj); 1593 } 1594 1595 template <class ELFT> void ELFDumper<ELFT>::printCGProfile() { 1596 ELFDumperStyle->printCGProfile(Obj); 1597 } 1598 1599 template <class ELFT> void ELFDumper<ELFT>::printNotes() { 1600 ELFDumperStyle->printNotes(Obj); 1601 } 1602 1603 template <class ELFT> void ELFDumper<ELFT>::printELFLinkerOptions() { 1604 ELFDumperStyle->printELFLinkerOptions(Obj); 1605 } 1606 1607 static const char *getTypeString(unsigned Arch, uint64_t Type) { 1608 #define DYNAMIC_TAG(n, v) 1609 switch (Arch) { 1610 case EM_HEXAGON: 1611 switch (Type) { 1612 #define HEXAGON_DYNAMIC_TAG(name, value) \ 1613 case DT_##name: \ 1614 return #name; 1615 #include "llvm/BinaryFormat/DynamicTags.def" 1616 #undef HEXAGON_DYNAMIC_TAG 1617 } 1618 1619 case EM_MIPS: 1620 switch (Type) { 1621 #define MIPS_DYNAMIC_TAG(name, value) \ 1622 case DT_##name: \ 1623 return #name; 1624 #include "llvm/BinaryFormat/DynamicTags.def" 1625 #undef MIPS_DYNAMIC_TAG 1626 } 1627 1628 case EM_PPC64: 1629 switch(Type) { 1630 #define PPC64_DYNAMIC_TAG(name, value) \ 1631 case DT_##name: \ 1632 return #name; 1633 #include "llvm/BinaryFormat/DynamicTags.def" 1634 #undef PPC64_DYNAMIC_TAG 1635 } 1636 } 1637 #undef DYNAMIC_TAG 1638 switch (Type) { 1639 // Now handle all dynamic tags except the architecture specific ones 1640 #define MIPS_DYNAMIC_TAG(name, value) 1641 #define HEXAGON_DYNAMIC_TAG(name, value) 1642 #define PPC64_DYNAMIC_TAG(name, value) 1643 // Also ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc. 1644 #define DYNAMIC_TAG_MARKER(name, value) 1645 #define DYNAMIC_TAG(name, value) \ 1646 case DT_##name: \ 1647 return #name; 1648 #include "llvm/BinaryFormat/DynamicTags.def" 1649 #undef DYNAMIC_TAG 1650 #undef MIPS_DYNAMIC_TAG 1651 #undef HEXAGON_DYNAMIC_TAG 1652 #undef PPC64_DYNAMIC_TAG 1653 #undef DYNAMIC_TAG_MARKER 1654 default: return "unknown"; 1655 } 1656 } 1657 1658 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \ 1659 { #enum, prefix##_##enum } 1660 1661 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = { 1662 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN), 1663 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC), 1664 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL), 1665 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW), 1666 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS) 1667 }; 1668 1669 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = { 1670 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW), 1671 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL), 1672 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP), 1673 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE), 1674 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR), 1675 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST), 1676 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN), 1677 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN), 1678 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT), 1679 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS), 1680 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE), 1681 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB), 1682 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP), 1683 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT), 1684 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE), 1685 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE), 1686 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT), 1687 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF), 1688 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS), 1689 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR), 1690 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED), 1691 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC), 1692 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE), 1693 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT), 1694 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON) 1695 }; 1696 1697 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = { 1698 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE), 1699 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART), 1700 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT), 1701 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT), 1702 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE), 1703 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY), 1704 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT), 1705 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS), 1706 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT), 1707 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE), 1708 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD), 1709 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART), 1710 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED), 1711 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD), 1712 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF), 1713 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE) 1714 }; 1715 1716 #undef LLVM_READOBJ_DT_FLAG_ENT 1717 1718 template <typename T, typename TFlag> 1719 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) { 1720 using FlagEntry = EnumEntry<TFlag>; 1721 using FlagVector = SmallVector<FlagEntry, 10>; 1722 FlagVector SetFlags; 1723 1724 for (const auto &Flag : Flags) { 1725 if (Flag.Value == 0) 1726 continue; 1727 1728 if ((Value & Flag.Value) == Flag.Value) 1729 SetFlags.push_back(Flag); 1730 } 1731 1732 for (const auto &Flag : SetFlags) { 1733 OS << Flag.Name << " "; 1734 } 1735 } 1736 1737 template <class ELFT> 1738 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const { 1739 if (Value >= DynamicStringTable.size()) 1740 reportError("Invalid dynamic string table reference"); 1741 return StringRef(DynamicStringTable.data() + Value); 1742 } 1743 1744 static void printLibrary(raw_ostream &OS, const Twine &Tag, const Twine &Name) { 1745 OS << Tag << ": [" << Name << "]"; 1746 } 1747 1748 template <class ELFT> 1749 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { 1750 raw_ostream &OS = W.getOStream(); 1751 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64; 1752 switch (Type) { 1753 case DT_PLTREL: 1754 if (Value == DT_REL) { 1755 OS << "REL"; 1756 break; 1757 } else if (Value == DT_RELA) { 1758 OS << "RELA"; 1759 break; 1760 } 1761 LLVM_FALLTHROUGH; 1762 case DT_PLTGOT: 1763 case DT_HASH: 1764 case DT_STRTAB: 1765 case DT_SYMTAB: 1766 case DT_RELA: 1767 case DT_INIT: 1768 case DT_FINI: 1769 case DT_REL: 1770 case DT_JMPREL: 1771 case DT_INIT_ARRAY: 1772 case DT_FINI_ARRAY: 1773 case DT_PREINIT_ARRAY: 1774 case DT_DEBUG: 1775 case DT_VERDEF: 1776 case DT_VERNEED: 1777 case DT_VERSYM: 1778 case DT_GNU_HASH: 1779 case DT_NULL: 1780 case DT_MIPS_BASE_ADDRESS: 1781 case DT_MIPS_GOTSYM: 1782 case DT_MIPS_RLD_MAP: 1783 case DT_MIPS_RLD_MAP_REL: 1784 case DT_MIPS_PLTGOT: 1785 case DT_MIPS_OPTIONS: 1786 OS << format(ConvChar, Value); 1787 break; 1788 case DT_RELACOUNT: 1789 case DT_RELCOUNT: 1790 case DT_VERDEFNUM: 1791 case DT_VERNEEDNUM: 1792 case DT_MIPS_RLD_VERSION: 1793 case DT_MIPS_LOCAL_GOTNO: 1794 case DT_MIPS_SYMTABNO: 1795 case DT_MIPS_UNREFEXTNO: 1796 OS << Value; 1797 break; 1798 case DT_PLTRELSZ: 1799 case DT_RELASZ: 1800 case DT_RELAENT: 1801 case DT_STRSZ: 1802 case DT_SYMENT: 1803 case DT_RELSZ: 1804 case DT_RELENT: 1805 case DT_INIT_ARRAYSZ: 1806 case DT_FINI_ARRAYSZ: 1807 case DT_PREINIT_ARRAYSZ: 1808 case DT_ANDROID_RELSZ: 1809 case DT_ANDROID_RELASZ: 1810 OS << Value << " (bytes)"; 1811 break; 1812 case DT_NEEDED: 1813 printLibrary(OS, "Shared library", getDynamicString(Value)); 1814 break; 1815 case DT_SONAME: 1816 printLibrary(OS, "Library soname", getDynamicString(Value)); 1817 break; 1818 case DT_AUXILIARY: 1819 printLibrary(OS, "Auxiliary library", getDynamicString(Value)); 1820 break; 1821 case DT_FILTER: 1822 printLibrary(OS, "Filter library", getDynamicString(Value)); 1823 break; 1824 case DT_RPATH: 1825 case DT_RUNPATH: 1826 OS << getDynamicString(Value); 1827 break; 1828 case DT_MIPS_FLAGS: 1829 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS); 1830 break; 1831 case DT_FLAGS: 1832 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS); 1833 break; 1834 case DT_FLAGS_1: 1835 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS); 1836 break; 1837 default: 1838 OS << format(ConvChar, Value); 1839 break; 1840 } 1841 } 1842 1843 template<class ELFT> 1844 void ELFDumper<ELFT>::printUnwindInfo() { 1845 const unsigned Machine = Obj->getHeader()->e_machine; 1846 if (Machine == EM_386 || Machine == EM_X86_64) { 1847 DwarfCFIEH::PrinterContext<ELFT> Ctx(W, Obj); 1848 return Ctx.printUnwindInformation(); 1849 } 1850 W.startLine() << "UnwindInfo not implemented.\n"; 1851 } 1852 1853 namespace { 1854 1855 template <> void ELFDumper<ELF32LE>::printUnwindInfo() { 1856 const unsigned Machine = Obj->getHeader()->e_machine; 1857 if (Machine == EM_ARM) { 1858 ARM::EHABI::PrinterContext<ELF32LE> Ctx(W, Obj, DotSymtabSec); 1859 return Ctx.PrintUnwindInformation(); 1860 } 1861 W.startLine() << "UnwindInfo not implemented.\n"; 1862 } 1863 1864 } // end anonymous namespace 1865 1866 template<class ELFT> 1867 void ELFDumper<ELFT>::printDynamicTable() { 1868 auto I = dynamic_table().begin(); 1869 auto E = dynamic_table().end(); 1870 1871 if (I == E) 1872 return; 1873 1874 --E; 1875 while (I != E && E->getTag() == ELF::DT_NULL) 1876 --E; 1877 if (E->getTag() != ELF::DT_NULL) 1878 ++E; 1879 ++E; 1880 1881 ptrdiff_t Total = std::distance(I, E); 1882 if (Total == 0) 1883 return; 1884 1885 raw_ostream &OS = W.getOStream(); 1886 W.startLine() << "DynamicSection [ (" << Total << " entries)\n"; 1887 1888 bool Is64 = ELFT::Is64Bits; 1889 1890 W.startLine() 1891 << " Tag" << (Is64 ? " " : " ") << "Type" 1892 << " " << "Name/Value\n"; 1893 while (I != E) { 1894 const Elf_Dyn &Entry = *I; 1895 uintX_t Tag = Entry.getTag(); 1896 ++I; 1897 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " " 1898 << format("%-21s", getTypeString(Obj->getHeader()->e_machine, Tag)); 1899 printValue(Tag, Entry.getVal()); 1900 OS << "\n"; 1901 } 1902 1903 W.startLine() << "]\n"; 1904 } 1905 1906 template<class ELFT> 1907 void ELFDumper<ELFT>::printNeededLibraries() { 1908 ListScope D(W, "NeededLibraries"); 1909 1910 using LibsTy = std::vector<StringRef>; 1911 LibsTy Libs; 1912 1913 for (const auto &Entry : dynamic_table()) 1914 if (Entry.d_tag == ELF::DT_NEEDED) 1915 Libs.push_back(getDynamicString(Entry.d_un.d_val)); 1916 1917 std::stable_sort(Libs.begin(), Libs.end()); 1918 1919 for (const auto &L : Libs) 1920 W.startLine() << L << "\n"; 1921 } 1922 1923 1924 template <typename ELFT> 1925 void ELFDumper<ELFT>::printHashTable() { 1926 DictScope D(W, "HashTable"); 1927 if (!HashTable) 1928 return; 1929 W.printNumber("Num Buckets", HashTable->nbucket); 1930 W.printNumber("Num Chains", HashTable->nchain); 1931 W.printList("Buckets", HashTable->buckets()); 1932 W.printList("Chains", HashTable->chains()); 1933 } 1934 1935 template <typename ELFT> 1936 void ELFDumper<ELFT>::printGnuHashTable() { 1937 DictScope D(W, "GnuHashTable"); 1938 if (!GnuHashTable) 1939 return; 1940 W.printNumber("Num Buckets", GnuHashTable->nbuckets); 1941 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx); 1942 W.printNumber("Num Mask Words", GnuHashTable->maskwords); 1943 W.printNumber("Shift Count", GnuHashTable->shift2); 1944 W.printHexList("Bloom Filter", GnuHashTable->filter()); 1945 W.printList("Buckets", GnuHashTable->buckets()); 1946 Elf_Sym_Range Syms = dynamic_symbols(); 1947 unsigned NumSyms = std::distance(Syms.begin(), Syms.end()); 1948 if (!NumSyms) 1949 reportError("No dynamic symbol section"); 1950 W.printHexList("Values", GnuHashTable->values(NumSyms)); 1951 } 1952 1953 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() { 1954 W.printString("LoadName", SOName); 1955 } 1956 1957 template <class ELFT> 1958 void ELFDumper<ELFT>::printAttributes() { 1959 W.startLine() << "Attributes not implemented.\n"; 1960 } 1961 1962 namespace { 1963 1964 template <> void ELFDumper<ELF32LE>::printAttributes() { 1965 if (Obj->getHeader()->e_machine != EM_ARM) { 1966 W.startLine() << "Attributes not implemented.\n"; 1967 return; 1968 } 1969 1970 DictScope BA(W, "BuildAttributes"); 1971 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1972 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES) 1973 continue; 1974 1975 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec)); 1976 if (Contents[0] != ARMBuildAttrs::Format_Version) { 1977 errs() << "unrecognised FormatVersion: 0x" 1978 << Twine::utohexstr(Contents[0]) << '\n'; 1979 continue; 1980 } 1981 1982 W.printHex("FormatVersion", Contents[0]); 1983 if (Contents.size() == 1) 1984 continue; 1985 1986 ARMAttributeParser(&W).Parse(Contents, true); 1987 } 1988 } 1989 1990 template <class ELFT> class MipsGOTParser { 1991 public: 1992 TYPEDEF_ELF_TYPES(ELFT) 1993 using Entry = typename ELFO::Elf_Addr; 1994 using Entries = ArrayRef<Entry>; 1995 1996 const bool IsStatic; 1997 const ELFO * const Obj; 1998 1999 MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, Elf_Sym_Range DynSyms); 2000 2001 bool hasGot() const { return !GotEntries.empty(); } 2002 bool hasPlt() const { return !PltEntries.empty(); } 2003 2004 uint64_t getGp() const; 2005 2006 const Entry *getGotLazyResolver() const; 2007 const Entry *getGotModulePointer() const; 2008 const Entry *getPltLazyResolver() const; 2009 const Entry *getPltModulePointer() const; 2010 2011 Entries getLocalEntries() const; 2012 Entries getGlobalEntries() const; 2013 Entries getOtherEntries() const; 2014 Entries getPltEntries() const; 2015 2016 uint64_t getGotAddress(const Entry * E) const; 2017 int64_t getGotOffset(const Entry * E) const; 2018 const Elf_Sym *getGotSym(const Entry *E) const; 2019 2020 uint64_t getPltAddress(const Entry * E) const; 2021 const Elf_Sym *getPltSym(const Entry *E) const; 2022 2023 StringRef getPltStrTable() const { return PltStrTable; } 2024 2025 private: 2026 const Elf_Shdr *GotSec; 2027 size_t LocalNum; 2028 size_t GlobalNum; 2029 2030 const Elf_Shdr *PltSec; 2031 const Elf_Shdr *PltRelSec; 2032 const Elf_Shdr *PltSymTable; 2033 Elf_Sym_Range GotDynSyms; 2034 StringRef PltStrTable; 2035 2036 Entries GotEntries; 2037 Entries PltEntries; 2038 }; 2039 2040 } // end anonymous namespace 2041 2042 template <class ELFT> 2043 MipsGOTParser<ELFT>::MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, 2044 Elf_Sym_Range DynSyms) 2045 : IsStatic(DynTable.empty()), Obj(Obj), GotSec(nullptr), LocalNum(0), 2046 GlobalNum(0), PltSec(nullptr), PltRelSec(nullptr), PltSymTable(nullptr) { 2047 // See "Global Offset Table" in Chapter 5 in the following document 2048 // for detailed GOT description. 2049 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf 2050 2051 // Find static GOT secton. 2052 if (IsStatic) { 2053 GotSec = findSectionByName(*Obj, ".got"); 2054 if (!GotSec) 2055 reportError("Cannot find .got section"); 2056 2057 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2058 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2059 Content.size() / sizeof(Entry)); 2060 LocalNum = GotEntries.size(); 2061 return; 2062 } 2063 2064 // Lookup dynamic table tags which define GOT/PLT layouts. 2065 Optional<uint64_t> DtPltGot; 2066 Optional<uint64_t> DtLocalGotNum; 2067 Optional<uint64_t> DtGotSym; 2068 Optional<uint64_t> DtMipsPltGot; 2069 Optional<uint64_t> DtJmpRel; 2070 for (const auto &Entry : DynTable) { 2071 switch (Entry.getTag()) { 2072 case ELF::DT_PLTGOT: 2073 DtPltGot = Entry.getVal(); 2074 break; 2075 case ELF::DT_MIPS_LOCAL_GOTNO: 2076 DtLocalGotNum = Entry.getVal(); 2077 break; 2078 case ELF::DT_MIPS_GOTSYM: 2079 DtGotSym = Entry.getVal(); 2080 break; 2081 case ELF::DT_MIPS_PLTGOT: 2082 DtMipsPltGot = Entry.getVal(); 2083 break; 2084 case ELF::DT_JMPREL: 2085 DtJmpRel = Entry.getVal(); 2086 break; 2087 } 2088 } 2089 2090 // Find dynamic GOT section. 2091 if (DtPltGot || DtLocalGotNum || DtGotSym) { 2092 if (!DtPltGot) 2093 report_fatal_error("Cannot find PLTGOT dynamic table tag."); 2094 if (!DtLocalGotNum) 2095 report_fatal_error("Cannot find MIPS_LOCAL_GOTNO dynamic table tag."); 2096 if (!DtGotSym) 2097 report_fatal_error("Cannot find MIPS_GOTSYM dynamic table tag."); 2098 2099 size_t DynSymTotal = DynSyms.size(); 2100 if (*DtGotSym > DynSymTotal) 2101 reportError("MIPS_GOTSYM exceeds a number of dynamic symbols"); 2102 2103 GotSec = findNotEmptySectionByAddress(Obj, *DtPltGot); 2104 if (!GotSec) 2105 reportError("There is no not empty GOT section at 0x" + 2106 Twine::utohexstr(*DtPltGot)); 2107 2108 LocalNum = *DtLocalGotNum; 2109 GlobalNum = DynSymTotal - *DtGotSym; 2110 2111 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2112 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2113 Content.size() / sizeof(Entry)); 2114 GotDynSyms = DynSyms.drop_front(*DtGotSym); 2115 } 2116 2117 // Find PLT section. 2118 if (DtMipsPltGot || DtJmpRel) { 2119 if (!DtMipsPltGot) 2120 report_fatal_error("Cannot find MIPS_PLTGOT dynamic table tag."); 2121 if (!DtJmpRel) 2122 report_fatal_error("Cannot find JMPREL dynamic table tag."); 2123 2124 PltSec = findNotEmptySectionByAddress(Obj, *DtMipsPltGot); 2125 if (!PltSec) 2126 report_fatal_error("There is no not empty PLTGOT section at 0x " + 2127 Twine::utohexstr(*DtMipsPltGot)); 2128 2129 PltRelSec = findNotEmptySectionByAddress(Obj, *DtJmpRel); 2130 if (!PltRelSec) 2131 report_fatal_error("There is no not empty RELPLT section at 0x" + 2132 Twine::utohexstr(*DtJmpRel)); 2133 2134 ArrayRef<uint8_t> PltContent = 2135 unwrapOrError(Obj->getSectionContents(PltSec)); 2136 PltEntries = Entries(reinterpret_cast<const Entry *>(PltContent.data()), 2137 PltContent.size() / sizeof(Entry)); 2138 2139 PltSymTable = unwrapOrError(Obj->getSection(PltRelSec->sh_link)); 2140 PltStrTable = unwrapOrError(Obj->getStringTableForSymtab(*PltSymTable)); 2141 } 2142 } 2143 2144 template <class ELFT> uint64_t MipsGOTParser<ELFT>::getGp() const { 2145 return GotSec->sh_addr + 0x7ff0; 2146 } 2147 2148 template <class ELFT> 2149 const typename MipsGOTParser<ELFT>::Entry * 2150 MipsGOTParser<ELFT>::getGotLazyResolver() const { 2151 return LocalNum > 0 ? &GotEntries[0] : nullptr; 2152 } 2153 2154 template <class ELFT> 2155 const typename MipsGOTParser<ELFT>::Entry * 2156 MipsGOTParser<ELFT>::getGotModulePointer() const { 2157 if (LocalNum < 2) 2158 return nullptr; 2159 const Entry &E = GotEntries[1]; 2160 if ((E >> (sizeof(Entry) * 8 - 1)) == 0) 2161 return nullptr; 2162 return &E; 2163 } 2164 2165 template <class ELFT> 2166 typename MipsGOTParser<ELFT>::Entries 2167 MipsGOTParser<ELFT>::getLocalEntries() const { 2168 size_t Skip = getGotModulePointer() ? 2 : 1; 2169 if (LocalNum - Skip <= 0) 2170 return Entries(); 2171 return GotEntries.slice(Skip, LocalNum - Skip); 2172 } 2173 2174 template <class ELFT> 2175 typename MipsGOTParser<ELFT>::Entries 2176 MipsGOTParser<ELFT>::getGlobalEntries() const { 2177 if (GlobalNum == 0) 2178 return Entries(); 2179 return GotEntries.slice(LocalNum, GlobalNum); 2180 } 2181 2182 template <class ELFT> 2183 typename MipsGOTParser<ELFT>::Entries 2184 MipsGOTParser<ELFT>::getOtherEntries() const { 2185 size_t OtherNum = GotEntries.size() - LocalNum - GlobalNum; 2186 if (OtherNum == 0) 2187 return Entries(); 2188 return GotEntries.slice(LocalNum + GlobalNum, OtherNum); 2189 } 2190 2191 template <class ELFT> 2192 uint64_t MipsGOTParser<ELFT>::getGotAddress(const Entry *E) const { 2193 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2194 return GotSec->sh_addr + Offset; 2195 } 2196 2197 template <class ELFT> 2198 int64_t MipsGOTParser<ELFT>::getGotOffset(const Entry *E) const { 2199 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2200 return Offset - 0x7ff0; 2201 } 2202 2203 template <class ELFT> 2204 const typename MipsGOTParser<ELFT>::Elf_Sym * 2205 MipsGOTParser<ELFT>::getGotSym(const Entry *E) const { 2206 int64_t Offset = std::distance(GotEntries.data(), E); 2207 return &GotDynSyms[Offset - LocalNum]; 2208 } 2209 2210 template <class ELFT> 2211 const typename MipsGOTParser<ELFT>::Entry * 2212 MipsGOTParser<ELFT>::getPltLazyResolver() const { 2213 return PltEntries.empty() ? nullptr : &PltEntries[0]; 2214 } 2215 2216 template <class ELFT> 2217 const typename MipsGOTParser<ELFT>::Entry * 2218 MipsGOTParser<ELFT>::getPltModulePointer() const { 2219 return PltEntries.size() < 2 ? nullptr : &PltEntries[1]; 2220 } 2221 2222 template <class ELFT> 2223 typename MipsGOTParser<ELFT>::Entries 2224 MipsGOTParser<ELFT>::getPltEntries() const { 2225 if (PltEntries.size() <= 2) 2226 return Entries(); 2227 return PltEntries.slice(2, PltEntries.size() - 2); 2228 } 2229 2230 template <class ELFT> 2231 uint64_t MipsGOTParser<ELFT>::getPltAddress(const Entry *E) const { 2232 int64_t Offset = std::distance(PltEntries.data(), E) * sizeof(Entry); 2233 return PltSec->sh_addr + Offset; 2234 } 2235 2236 template <class ELFT> 2237 const typename MipsGOTParser<ELFT>::Elf_Sym * 2238 MipsGOTParser<ELFT>::getPltSym(const Entry *E) const { 2239 int64_t Offset = std::distance(getPltEntries().data(), E); 2240 if (PltRelSec->sh_type == ELF::SHT_REL) { 2241 Elf_Rel_Range Rels = unwrapOrError(Obj->rels(PltRelSec)); 2242 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2243 } else { 2244 Elf_Rela_Range Rels = unwrapOrError(Obj->relas(PltRelSec)); 2245 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2246 } 2247 } 2248 2249 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() { 2250 if (Obj->getHeader()->e_machine != EM_MIPS) 2251 reportError("MIPS PLT GOT is available for MIPS targets only"); 2252 2253 MipsGOTParser<ELFT> Parser(Obj, dynamic_table(), dynamic_symbols()); 2254 if (Parser.hasGot()) 2255 ELFDumperStyle->printMipsGOT(Parser); 2256 if (Parser.hasPlt()) 2257 ELFDumperStyle->printMipsPLT(Parser); 2258 } 2259 2260 static const EnumEntry<unsigned> ElfMipsISAExtType[] = { 2261 {"None", Mips::AFL_EXT_NONE}, 2262 {"Broadcom SB-1", Mips::AFL_EXT_SB1}, 2263 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON}, 2264 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2}, 2265 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP}, 2266 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3}, 2267 {"LSI R4010", Mips::AFL_EXT_4010}, 2268 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E}, 2269 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F}, 2270 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A}, 2271 {"MIPS R4650", Mips::AFL_EXT_4650}, 2272 {"MIPS R5900", Mips::AFL_EXT_5900}, 2273 {"MIPS R10000", Mips::AFL_EXT_10000}, 2274 {"NEC VR4100", Mips::AFL_EXT_4100}, 2275 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111}, 2276 {"NEC VR4120", Mips::AFL_EXT_4120}, 2277 {"NEC VR5400", Mips::AFL_EXT_5400}, 2278 {"NEC VR5500", Mips::AFL_EXT_5500}, 2279 {"RMI Xlr", Mips::AFL_EXT_XLR}, 2280 {"Toshiba R3900", Mips::AFL_EXT_3900} 2281 }; 2282 2283 static const EnumEntry<unsigned> ElfMipsASEFlags[] = { 2284 {"DSP", Mips::AFL_ASE_DSP}, 2285 {"DSPR2", Mips::AFL_ASE_DSPR2}, 2286 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA}, 2287 {"MCU", Mips::AFL_ASE_MCU}, 2288 {"MDMX", Mips::AFL_ASE_MDMX}, 2289 {"MIPS-3D", Mips::AFL_ASE_MIPS3D}, 2290 {"MT", Mips::AFL_ASE_MT}, 2291 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS}, 2292 {"VZ", Mips::AFL_ASE_VIRT}, 2293 {"MSA", Mips::AFL_ASE_MSA}, 2294 {"MIPS16", Mips::AFL_ASE_MIPS16}, 2295 {"microMIPS", Mips::AFL_ASE_MICROMIPS}, 2296 {"XPA", Mips::AFL_ASE_XPA}, 2297 {"CRC", Mips::AFL_ASE_CRC}, 2298 {"GINV", Mips::AFL_ASE_GINV}, 2299 }; 2300 2301 static const EnumEntry<unsigned> ElfMipsFpABIType[] = { 2302 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY}, 2303 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE}, 2304 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE}, 2305 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT}, 2306 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)", 2307 Mips::Val_GNU_MIPS_ABI_FP_OLD_64}, 2308 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX}, 2309 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64}, 2310 {"Hard float compat (32-bit CPU, 64-bit FPU)", 2311 Mips::Val_GNU_MIPS_ABI_FP_64A} 2312 }; 2313 2314 static const EnumEntry<unsigned> ElfMipsFlags1[] { 2315 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG}, 2316 }; 2317 2318 static int getMipsRegisterSize(uint8_t Flag) { 2319 switch (Flag) { 2320 case Mips::AFL_REG_NONE: 2321 return 0; 2322 case Mips::AFL_REG_32: 2323 return 32; 2324 case Mips::AFL_REG_64: 2325 return 64; 2326 case Mips::AFL_REG_128: 2327 return 128; 2328 default: 2329 return -1; 2330 } 2331 } 2332 2333 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { 2334 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags"); 2335 if (!Shdr) { 2336 W.startLine() << "There is no .MIPS.abiflags section in the file.\n"; 2337 return; 2338 } 2339 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2340 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) { 2341 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n"; 2342 return; 2343 } 2344 2345 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data()); 2346 2347 raw_ostream &OS = W.getOStream(); 2348 DictScope GS(W, "MIPS ABI Flags"); 2349 2350 W.printNumber("Version", Flags->version); 2351 W.startLine() << "ISA: "; 2352 if (Flags->isa_rev <= 1) 2353 OS << format("MIPS%u", Flags->isa_level); 2354 else 2355 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev); 2356 OS << "\n"; 2357 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType)); 2358 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags)); 2359 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType)); 2360 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size)); 2361 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size)); 2362 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size)); 2363 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1)); 2364 W.printHex("Flags 2", Flags->flags2); 2365 } 2366 2367 template <class ELFT> 2368 static void printMipsReginfoData(ScopedPrinter &W, 2369 const Elf_Mips_RegInfo<ELFT> &Reginfo) { 2370 W.printHex("GP", Reginfo.ri_gp_value); 2371 W.printHex("General Mask", Reginfo.ri_gprmask); 2372 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]); 2373 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]); 2374 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]); 2375 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]); 2376 } 2377 2378 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() { 2379 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo"); 2380 if (!Shdr) { 2381 W.startLine() << "There is no .reginfo section in the file.\n"; 2382 return; 2383 } 2384 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2385 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) { 2386 W.startLine() << "The .reginfo section has a wrong size.\n"; 2387 return; 2388 } 2389 2390 DictScope GS(W, "MIPS RegInfo"); 2391 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data()); 2392 printMipsReginfoData(W, *Reginfo); 2393 } 2394 2395 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() { 2396 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options"); 2397 if (!Shdr) { 2398 W.startLine() << "There is no .MIPS.options section in the file.\n"; 2399 return; 2400 } 2401 2402 DictScope GS(W, "MIPS Options"); 2403 2404 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2405 while (!Sec.empty()) { 2406 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) { 2407 W.startLine() << "The .MIPS.options section has a wrong size.\n"; 2408 return; 2409 } 2410 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data()); 2411 DictScope GS(W, getElfMipsOptionsOdkType(O->kind)); 2412 switch (O->kind) { 2413 case ODK_REGINFO: 2414 printMipsReginfoData(W, O->getRegInfo()); 2415 break; 2416 default: 2417 W.startLine() << "Unsupported MIPS options tag.\n"; 2418 break; 2419 } 2420 Sec = Sec.slice(O->size); 2421 } 2422 } 2423 2424 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const { 2425 const Elf_Shdr *StackMapSection = nullptr; 2426 for (const auto &Sec : unwrapOrError(Obj->sections())) { 2427 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2428 if (Name == ".llvm_stackmaps") { 2429 StackMapSection = &Sec; 2430 break; 2431 } 2432 } 2433 2434 if (!StackMapSection) 2435 return; 2436 2437 ArrayRef<uint8_t> StackMapContentsArray = 2438 unwrapOrError(Obj->getSectionContents(StackMapSection)); 2439 2440 prettyPrintStackMap( 2441 W, StackMapV2Parser<ELFT::TargetEndianness>(StackMapContentsArray)); 2442 } 2443 2444 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() { 2445 ELFDumperStyle->printGroupSections(Obj); 2446 } 2447 2448 template <class ELFT> void ELFDumper<ELFT>::printAddrsig() { 2449 ELFDumperStyle->printAddrsig(Obj); 2450 } 2451 2452 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1, 2453 StringRef Str2) { 2454 OS.PadToColumn(2u); 2455 OS << Str1; 2456 OS.PadToColumn(37u); 2457 OS << Str2 << "\n"; 2458 OS.flush(); 2459 } 2460 2461 template <class ELFT> 2462 static std::string getSectionHeadersNumString(const ELFFile<ELFT> *Obj) { 2463 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2464 if (ElfHeader->e_shnum != 0) 2465 return to_string(ElfHeader->e_shnum); 2466 2467 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2468 if (Arr.empty()) 2469 return "0"; 2470 return "0 (" + to_string(Arr[0].sh_size) + ")"; 2471 } 2472 2473 template <class ELFT> 2474 static std::string getSectionHeaderTableIndexString(const ELFFile<ELFT> *Obj) { 2475 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2476 if (ElfHeader->e_shstrndx != SHN_XINDEX) 2477 return to_string(ElfHeader->e_shstrndx); 2478 2479 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2480 if (Arr.empty()) 2481 return "65535 (corrupt: out of range)"; 2482 return to_string(ElfHeader->e_shstrndx) + " (" + to_string(Arr[0].sh_link) + ")"; 2483 } 2484 2485 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 2486 const Elf_Ehdr *e = Obj->getHeader(); 2487 OS << "ELF Header:\n"; 2488 OS << " Magic: "; 2489 std::string Str; 2490 for (int i = 0; i < ELF::EI_NIDENT; i++) 2491 OS << format(" %02x", static_cast<int>(e->e_ident[i])); 2492 OS << "\n"; 2493 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 2494 printFields(OS, "Class:", Str); 2495 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding)); 2496 printFields(OS, "Data:", Str); 2497 OS.PadToColumn(2u); 2498 OS << "Version:"; 2499 OS.PadToColumn(37u); 2500 OS << to_hexString(e->e_ident[ELF::EI_VERSION]); 2501 if (e->e_version == ELF::EV_CURRENT) 2502 OS << " (current)"; 2503 OS << "\n"; 2504 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI)); 2505 printFields(OS, "OS/ABI:", Str); 2506 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]); 2507 printFields(OS, "ABI Version:", Str); 2508 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType)); 2509 printFields(OS, "Type:", Str); 2510 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType)); 2511 printFields(OS, "Machine:", Str); 2512 Str = "0x" + to_hexString(e->e_version); 2513 printFields(OS, "Version:", Str); 2514 Str = "0x" + to_hexString(e->e_entry); 2515 printFields(OS, "Entry point address:", Str); 2516 Str = to_string(e->e_phoff) + " (bytes into file)"; 2517 printFields(OS, "Start of program headers:", Str); 2518 Str = to_string(e->e_shoff) + " (bytes into file)"; 2519 printFields(OS, "Start of section headers:", Str); 2520 Str = "0x" + to_hexString(e->e_flags); 2521 printFields(OS, "Flags:", Str); 2522 Str = to_string(e->e_ehsize) + " (bytes)"; 2523 printFields(OS, "Size of this header:", Str); 2524 Str = to_string(e->e_phentsize) + " (bytes)"; 2525 printFields(OS, "Size of program headers:", Str); 2526 Str = to_string(e->e_phnum); 2527 printFields(OS, "Number of program headers:", Str); 2528 Str = to_string(e->e_shentsize) + " (bytes)"; 2529 printFields(OS, "Size of section headers:", Str); 2530 Str = getSectionHeadersNumString(Obj); 2531 printFields(OS, "Number of section headers:", Str); 2532 Str = getSectionHeaderTableIndexString(Obj); 2533 printFields(OS, "Section header string table index:", Str); 2534 } 2535 2536 namespace { 2537 struct GroupMember { 2538 StringRef Name; 2539 uint64_t Index; 2540 }; 2541 2542 struct GroupSection { 2543 StringRef Name; 2544 StringRef Signature; 2545 uint64_t ShName; 2546 uint64_t Index; 2547 uint32_t Link; 2548 uint32_t Info; 2549 uint32_t Type; 2550 std::vector<GroupMember> Members; 2551 }; 2552 2553 template <class ELFT> 2554 std::vector<GroupSection> getGroups(const ELFFile<ELFT> *Obj) { 2555 using Elf_Shdr = typename ELFT::Shdr; 2556 using Elf_Sym = typename ELFT::Sym; 2557 using Elf_Word = typename ELFT::Word; 2558 2559 std::vector<GroupSection> Ret; 2560 uint64_t I = 0; 2561 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2562 ++I; 2563 if (Sec.sh_type != ELF::SHT_GROUP) 2564 continue; 2565 2566 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2567 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 2568 const Elf_Sym *Sym = 2569 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 2570 auto Data = 2571 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 2572 2573 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2574 StringRef Signature = StrTable.data() + Sym->st_name; 2575 Ret.push_back({Name, 2576 Signature, 2577 Sec.sh_name, 2578 I - 1, 2579 Sec.sh_link, 2580 Sec.sh_info, 2581 Data[0], 2582 {}}); 2583 2584 std::vector<GroupMember> &GM = Ret.back().Members; 2585 for (uint32_t Ndx : Data.slice(1)) { 2586 auto Sec = unwrapOrError(Obj->getSection(Ndx)); 2587 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 2588 GM.push_back({Name, Ndx}); 2589 } 2590 } 2591 return Ret; 2592 } 2593 2594 DenseMap<uint64_t, const GroupSection *> 2595 mapSectionsToGroups(ArrayRef<GroupSection> Groups) { 2596 DenseMap<uint64_t, const GroupSection *> Ret; 2597 for (const GroupSection &G : Groups) 2598 for (const GroupMember &GM : G.Members) 2599 Ret.insert({GM.Index, &G}); 2600 return Ret; 2601 } 2602 2603 } // namespace 2604 2605 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) { 2606 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 2607 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 2608 for (const GroupSection &G : V) { 2609 OS << "\n" 2610 << getGroupType(G.Type) << " group section [" 2611 << format_decimal(G.Index, 5) << "] `" << G.Name << "' [" << G.Signature 2612 << "] contains " << G.Members.size() << " sections:\n" 2613 << " [Index] Name\n"; 2614 for (const GroupMember &GM : G.Members) { 2615 const GroupSection *MainGroup = Map[GM.Index]; 2616 if (MainGroup != &G) { 2617 OS.flush(); 2618 errs() << "Error: section [" << format_decimal(GM.Index, 5) 2619 << "] in group section [" << format_decimal(G.Index, 5) 2620 << "] already in group section [" 2621 << format_decimal(MainGroup->Index, 5) << "]"; 2622 errs().flush(); 2623 continue; 2624 } 2625 OS << " [" << format_decimal(GM.Index, 5) << "] " << GM.Name << "\n"; 2626 } 2627 } 2628 2629 if (V.empty()) 2630 OS << "There are no section groups in this file.\n"; 2631 } 2632 2633 template <class ELFT> 2634 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 2635 const Elf_Rela &R, bool IsRela) { 2636 std::string Offset, Info, Addend, Value; 2637 SmallString<32> RelocName; 2638 StringRef TargetName; 2639 const Elf_Sym *Sym = nullptr; 2640 unsigned Width = ELFT::Is64Bits ? 16 : 8; 2641 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 2642 2643 // First two fields are bit width dependent. The rest of them are after are 2644 // fixed width. 2645 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 2646 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 2647 Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab)); 2648 if (Sym && Sym->getType() == ELF::STT_SECTION) { 2649 const Elf_Shdr *Sec = unwrapOrError( 2650 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 2651 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 2652 } else if (Sym) { 2653 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 2654 TargetName = unwrapOrError(Sym->getName(StrTable)); 2655 } 2656 2657 if (Sym && IsRela) { 2658 if (R.r_addend < 0) 2659 Addend = " - "; 2660 else 2661 Addend = " + "; 2662 } 2663 2664 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 2665 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 2666 2667 int64_t RelAddend = R.r_addend; 2668 if (IsRela) 2669 Addend += to_hexString(std::abs(RelAddend), false); 2670 2671 if (Sym) 2672 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 2673 2674 Fields[0].Str = Offset; 2675 Fields[1].Str = Info; 2676 Fields[2].Str = RelocName; 2677 Fields[3].Str = Value; 2678 Fields[4].Str = TargetName; 2679 for (auto &field : Fields) 2680 printField(field); 2681 OS << Addend; 2682 OS << "\n"; 2683 } 2684 2685 template <class ELFT> void GNUStyle<ELFT>::printRelocHeader(unsigned SType) { 2686 bool IsRela = SType == ELF::SHT_RELA || SType == ELF::SHT_ANDROID_RELA; 2687 bool IsRelr = SType == ELF::SHT_RELR || SType == ELF::SHT_ANDROID_RELR; 2688 if (ELFT::Is64Bits) 2689 OS << " "; 2690 else 2691 OS << " "; 2692 if (IsRelr && opts::RawRelr) 2693 OS << "Data "; 2694 else 2695 OS << "Offset"; 2696 if (ELFT::Is64Bits) 2697 OS << " Info Type" 2698 << " Symbol's Value Symbol's Name"; 2699 else 2700 OS << " Info Type Sym. Value Symbol's Name"; 2701 if (IsRela) 2702 OS << " + Addend"; 2703 OS << "\n"; 2704 } 2705 2706 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) { 2707 bool HasRelocSections = false; 2708 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2709 if (Sec.sh_type != ELF::SHT_REL && 2710 Sec.sh_type != ELF::SHT_RELA && 2711 Sec.sh_type != ELF::SHT_RELR && 2712 Sec.sh_type != ELF::SHT_ANDROID_REL && 2713 Sec.sh_type != ELF::SHT_ANDROID_RELA && 2714 Sec.sh_type != ELF::SHT_ANDROID_RELR) 2715 continue; 2716 HasRelocSections = true; 2717 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2718 unsigned Entries = Sec.getEntityCount(); 2719 std::vector<Elf_Rela> AndroidRelas; 2720 if (Sec.sh_type == ELF::SHT_ANDROID_REL || 2721 Sec.sh_type == ELF::SHT_ANDROID_RELA) { 2722 // Android's packed relocation section needs to be unpacked first 2723 // to get the actual number of entries. 2724 AndroidRelas = unwrapOrError(Obj->android_relas(&Sec)); 2725 Entries = AndroidRelas.size(); 2726 } 2727 std::vector<Elf_Rela> RelrRelas; 2728 if (!opts::RawRelr && (Sec.sh_type == ELF::SHT_RELR || 2729 Sec.sh_type == ELF::SHT_ANDROID_RELR)) { 2730 // .relr.dyn relative relocation section needs to be unpacked first 2731 // to get the actual number of entries. 2732 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(&Sec)); 2733 RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 2734 Entries = RelrRelas.size(); 2735 } 2736 uintX_t Offset = Sec.sh_offset; 2737 OS << "\nRelocation section '" << Name << "' at offset 0x" 2738 << to_hexString(Offset, false) << " contains " << Entries 2739 << " entries:\n"; 2740 printRelocHeader(Sec.sh_type); 2741 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2742 switch (Sec.sh_type) { 2743 case ELF::SHT_REL: 2744 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) { 2745 Elf_Rela Rela; 2746 Rela.r_offset = R.r_offset; 2747 Rela.r_info = R.r_info; 2748 Rela.r_addend = 0; 2749 printRelocation(Obj, SymTab, Rela, false); 2750 } 2751 break; 2752 case ELF::SHT_RELA: 2753 for (const auto &R : unwrapOrError(Obj->relas(&Sec))) 2754 printRelocation(Obj, SymTab, R, true); 2755 break; 2756 case ELF::SHT_RELR: 2757 case ELF::SHT_ANDROID_RELR: 2758 if (opts::RawRelr) 2759 for (const auto &R : unwrapOrError(Obj->relrs(&Sec))) 2760 OS << to_string(format_hex_no_prefix(R, ELFT::Is64Bits ? 16 : 8)) 2761 << "\n"; 2762 else 2763 for (const auto &R : RelrRelas) 2764 printRelocation(Obj, SymTab, R, false); 2765 break; 2766 case ELF::SHT_ANDROID_REL: 2767 case ELF::SHT_ANDROID_RELA: 2768 for (const auto &R : AndroidRelas) 2769 printRelocation(Obj, SymTab, R, Sec.sh_type == ELF::SHT_ANDROID_RELA); 2770 break; 2771 } 2772 } 2773 if (!HasRelocSections) 2774 OS << "\nThere are no relocations in this file.\n"; 2775 } 2776 2777 std::string getSectionTypeString(unsigned Arch, unsigned Type) { 2778 using namespace ELF; 2779 2780 switch (Arch) { 2781 case EM_ARM: 2782 switch (Type) { 2783 case SHT_ARM_EXIDX: 2784 return "ARM_EXIDX"; 2785 case SHT_ARM_PREEMPTMAP: 2786 return "ARM_PREEMPTMAP"; 2787 case SHT_ARM_ATTRIBUTES: 2788 return "ARM_ATTRIBUTES"; 2789 case SHT_ARM_DEBUGOVERLAY: 2790 return "ARM_DEBUGOVERLAY"; 2791 case SHT_ARM_OVERLAYSECTION: 2792 return "ARM_OVERLAYSECTION"; 2793 } 2794 case EM_X86_64: 2795 switch (Type) { 2796 case SHT_X86_64_UNWIND: 2797 return "X86_64_UNWIND"; 2798 } 2799 case EM_MIPS: 2800 case EM_MIPS_RS3_LE: 2801 switch (Type) { 2802 case SHT_MIPS_REGINFO: 2803 return "MIPS_REGINFO"; 2804 case SHT_MIPS_OPTIONS: 2805 return "MIPS_OPTIONS"; 2806 case SHT_MIPS_ABIFLAGS: 2807 return "MIPS_ABIFLAGS"; 2808 case SHT_MIPS_DWARF: 2809 return "SHT_MIPS_DWARF"; 2810 } 2811 } 2812 switch (Type) { 2813 case SHT_NULL: 2814 return "NULL"; 2815 case SHT_PROGBITS: 2816 return "PROGBITS"; 2817 case SHT_SYMTAB: 2818 return "SYMTAB"; 2819 case SHT_STRTAB: 2820 return "STRTAB"; 2821 case SHT_RELA: 2822 return "RELA"; 2823 case SHT_HASH: 2824 return "HASH"; 2825 case SHT_DYNAMIC: 2826 return "DYNAMIC"; 2827 case SHT_NOTE: 2828 return "NOTE"; 2829 case SHT_NOBITS: 2830 return "NOBITS"; 2831 case SHT_REL: 2832 return "REL"; 2833 case SHT_SHLIB: 2834 return "SHLIB"; 2835 case SHT_DYNSYM: 2836 return "DYNSYM"; 2837 case SHT_INIT_ARRAY: 2838 return "INIT_ARRAY"; 2839 case SHT_FINI_ARRAY: 2840 return "FINI_ARRAY"; 2841 case SHT_PREINIT_ARRAY: 2842 return "PREINIT_ARRAY"; 2843 case SHT_GROUP: 2844 return "GROUP"; 2845 case SHT_SYMTAB_SHNDX: 2846 return "SYMTAB SECTION INDICES"; 2847 case SHT_RELR: 2848 case SHT_ANDROID_RELR: 2849 return "RELR"; 2850 case SHT_LLVM_ODRTAB: 2851 return "LLVM_ODRTAB"; 2852 case SHT_LLVM_LINKER_OPTIONS: 2853 return "LLVM_LINKER_OPTIONS"; 2854 case SHT_LLVM_CALL_GRAPH_PROFILE: 2855 return "LLVM_CALL_GRAPH_PROFILE"; 2856 case SHT_LLVM_ADDRSIG: 2857 return "LLVM_ADDRSIG"; 2858 // FIXME: Parse processor specific GNU attributes 2859 case SHT_GNU_ATTRIBUTES: 2860 return "ATTRIBUTES"; 2861 case SHT_GNU_HASH: 2862 return "GNU_HASH"; 2863 case SHT_GNU_verdef: 2864 return "VERDEF"; 2865 case SHT_GNU_verneed: 2866 return "VERNEED"; 2867 case SHT_GNU_versym: 2868 return "VERSYM"; 2869 default: 2870 return ""; 2871 } 2872 return ""; 2873 } 2874 2875 template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) { 2876 size_t SectionIndex = 0; 2877 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize, 2878 Alignment; 2879 unsigned Bias; 2880 unsigned Width; 2881 2882 if (ELFT::Is64Bits) { 2883 Bias = 0; 2884 Width = 16; 2885 } else { 2886 Bias = 8; 2887 Width = 8; 2888 } 2889 2890 ArrayRef<Elf_Shdr> Sections = unwrapOrError(Obj->sections()); 2891 OS << "There are " << to_string(Sections.size()) 2892 << " section headers, starting at offset " 2893 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n"; 2894 OS << "Section Headers:\n"; 2895 Field Fields[11] = {{"[Nr]", 2}, 2896 {"Name", 7}, 2897 {"Type", 25}, 2898 {"Address", 41}, 2899 {"Off", 58 - Bias}, 2900 {"Size", 65 - Bias}, 2901 {"ES", 72 - Bias}, 2902 {"Flg", 75 - Bias}, 2903 {"Lk", 79 - Bias}, 2904 {"Inf", 82 - Bias}, 2905 {"Al", 86 - Bias}}; 2906 for (auto &f : Fields) 2907 printField(f); 2908 OS << "\n"; 2909 2910 for (const Elf_Shdr &Sec : Sections) { 2911 Number = to_string(SectionIndex); 2912 Fields[0].Str = Number; 2913 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec)); 2914 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type); 2915 Fields[2].Str = Type; 2916 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width)); 2917 Fields[3].Str = Address; 2918 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6)); 2919 Fields[4].Str = Offset; 2920 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6)); 2921 Fields[5].Str = Size; 2922 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2)); 2923 Fields[6].Str = EntrySize; 2924 Flags = getGNUFlags(Sec.sh_flags); 2925 Fields[7].Str = Flags; 2926 Link = to_string(Sec.sh_link); 2927 Fields[8].Str = Link; 2928 Info = to_string(Sec.sh_info); 2929 Fields[9].Str = Info; 2930 Alignment = to_string(Sec.sh_addralign); 2931 Fields[10].Str = Alignment; 2932 OS.PadToColumn(Fields[0].Column); 2933 OS << "[" << right_justify(Fields[0].Str, 2) << "]"; 2934 for (int i = 1; i < 7; i++) 2935 printField(Fields[i]); 2936 OS.PadToColumn(Fields[7].Column); 2937 OS << right_justify(Fields[7].Str, 3); 2938 OS.PadToColumn(Fields[8].Column); 2939 OS << right_justify(Fields[8].Str, 2); 2940 OS.PadToColumn(Fields[9].Column); 2941 OS << right_justify(Fields[9].Str, 3); 2942 OS.PadToColumn(Fields[10].Column); 2943 OS << right_justify(Fields[10].Str, 2); 2944 OS << "\n"; 2945 ++SectionIndex; 2946 } 2947 OS << "Key to Flags:\n" 2948 << " W (write), A (alloc), X (execute), M (merge), S (strings), l " 2949 "(large)\n" 2950 << " I (info), L (link order), G (group), T (TLS), E (exclude),\ 2951 x (unknown)\n" 2952 << " O (extra OS processing required) o (OS specific),\ 2953 p (processor specific)\n"; 2954 } 2955 2956 template <class ELFT> 2957 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name, 2958 size_t Entries) { 2959 if (!Name.empty()) 2960 OS << "\nSymbol table '" << Name << "' contains " << Entries 2961 << " entries:\n"; 2962 else 2963 OS << "\n Symbol table for image:\n"; 2964 2965 if (ELFT::Is64Bits) 2966 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2967 else 2968 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2969 } 2970 2971 template <class ELFT> 2972 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj, 2973 const Elf_Sym *Symbol, 2974 const Elf_Sym *FirstSym) { 2975 unsigned SectionIndex = Symbol->st_shndx; 2976 switch (SectionIndex) { 2977 case ELF::SHN_UNDEF: 2978 return "UND"; 2979 case ELF::SHN_ABS: 2980 return "ABS"; 2981 case ELF::SHN_COMMON: 2982 return "COM"; 2983 case ELF::SHN_XINDEX: 2984 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 2985 Symbol, FirstSym, this->dumper()->getShndxTable())); 2986 LLVM_FALLTHROUGH; 2987 default: 2988 // Find if: 2989 // Processor specific 2990 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC) 2991 return std::string("PRC[0x") + 2992 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2993 // OS specific 2994 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS) 2995 return std::string("OS[0x") + 2996 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2997 // Architecture reserved: 2998 if (SectionIndex >= ELF::SHN_LORESERVE && 2999 SectionIndex <= ELF::SHN_HIRESERVE) 3000 return std::string("RSV[0x") + 3001 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 3002 // A normal section with an index 3003 return to_string(format_decimal(SectionIndex, 3)); 3004 } 3005 } 3006 3007 template <class ELFT> 3008 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 3009 const Elf_Sym *FirstSym, StringRef StrTable, 3010 bool IsDynamic) { 3011 static int Idx = 0; 3012 static bool Dynamic = true; 3013 size_t Width; 3014 3015 // If this function was called with a different value from IsDynamic 3016 // from last call, happens when we move from dynamic to static symbol 3017 // table, "Num" field should be reset. 3018 if (!Dynamic != !IsDynamic) { 3019 Idx = 0; 3020 Dynamic = false; 3021 } 3022 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section; 3023 unsigned Bias = 0; 3024 if (ELFT::Is64Bits) { 3025 Bias = 8; 3026 Width = 16; 3027 } else { 3028 Bias = 0; 3029 Width = 8; 3030 } 3031 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias, 3032 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias}; 3033 Num = to_string(format_decimal(Idx++, 6)) + ":"; 3034 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 3035 Size = to_string(format_decimal(Symbol->st_size, 5)); 3036 unsigned char SymbolType = Symbol->getType(); 3037 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3038 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3039 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3040 else 3041 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3042 unsigned Vis = Symbol->getVisibility(); 3043 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3044 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 3045 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3046 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 3047 Fields[0].Str = Num; 3048 Fields[1].Str = Value; 3049 Fields[2].Str = Size; 3050 Fields[3].Str = Type; 3051 Fields[4].Str = Binding; 3052 Fields[5].Str = Visibility; 3053 Fields[6].Str = Section; 3054 Fields[7].Str = Name; 3055 for (auto &Entry : Fields) 3056 printField(Entry); 3057 OS << "\n"; 3058 } 3059 template <class ELFT> 3060 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, 3061 uint32_t Sym, StringRef StrTable, 3062 uint32_t Bucket) { 3063 std::string Num, Buc, Name, Value, Size, Binding, Type, Visibility, Section; 3064 unsigned Width, Bias = 0; 3065 if (ELFT::Is64Bits) { 3066 Bias = 8; 3067 Width = 16; 3068 } else { 3069 Bias = 0; 3070 Width = 8; 3071 } 3072 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias, 3073 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias}; 3074 Num = to_string(format_decimal(Sym, 5)); 3075 Buc = to_string(format_decimal(Bucket, 3)) + ":"; 3076 3077 const auto Symbol = FirstSym + Sym; 3078 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 3079 Size = to_string(format_decimal(Symbol->st_size, 5)); 3080 unsigned char SymbolType = Symbol->getType(); 3081 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3082 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3083 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3084 else 3085 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3086 unsigned Vis = Symbol->getVisibility(); 3087 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3088 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 3089 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3090 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, true); 3091 Fields[0].Str = Num; 3092 Fields[1].Str = Buc; 3093 Fields[2].Str = Value; 3094 Fields[3].Str = Size; 3095 Fields[4].Str = Type; 3096 Fields[5].Str = Binding; 3097 Fields[6].Str = Visibility; 3098 Fields[7].Str = Section; 3099 Fields[8].Str = Name; 3100 for (auto &Entry : Fields) 3101 printField(Entry); 3102 OS << "\n"; 3103 } 3104 3105 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) { 3106 if (opts::DynamicSymbols) 3107 return; 3108 this->dumper()->printSymbolsHelper(true); 3109 this->dumper()->printSymbolsHelper(false); 3110 } 3111 3112 template <class ELFT> 3113 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 3114 if (this->dumper()->getDynamicStringTable().empty()) 3115 return; 3116 auto StringTable = this->dumper()->getDynamicStringTable(); 3117 auto DynSyms = this->dumper()->dynamic_symbols(); 3118 auto GnuHash = this->dumper()->getGnuHashTable(); 3119 auto SysVHash = this->dumper()->getHashTable(); 3120 3121 // If no hash or .gnu.hash found, try using symbol table 3122 if (GnuHash == nullptr && SysVHash == nullptr) 3123 this->dumper()->printSymbolsHelper(true); 3124 3125 // Try printing .hash 3126 if (this->dumper()->getHashTable()) { 3127 OS << "\n Symbol table of .hash for image:\n"; 3128 if (ELFT::Is64Bits) 3129 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3130 else 3131 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3132 OS << "\n"; 3133 3134 uint32_t NBuckets = SysVHash->nbucket; 3135 uint32_t NChains = SysVHash->nchain; 3136 auto Buckets = SysVHash->buckets(); 3137 auto Chains = SysVHash->chains(); 3138 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 3139 if (Buckets[Buc] == ELF::STN_UNDEF) 3140 continue; 3141 for (uint32_t Ch = Buckets[Buc]; Ch < NChains; Ch = Chains[Ch]) { 3142 if (Ch == ELF::STN_UNDEF) 3143 break; 3144 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc); 3145 } 3146 } 3147 } 3148 3149 // Try printing .gnu.hash 3150 if (GnuHash) { 3151 OS << "\n Symbol table of .gnu.hash for image:\n"; 3152 if (ELFT::Is64Bits) 3153 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3154 else 3155 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3156 OS << "\n"; 3157 uint32_t NBuckets = GnuHash->nbuckets; 3158 auto Buckets = GnuHash->buckets(); 3159 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 3160 if (Buckets[Buc] == ELF::STN_UNDEF) 3161 continue; 3162 uint32_t Index = Buckets[Buc]; 3163 uint32_t GnuHashable = Index - GnuHash->symndx; 3164 // Print whole chain 3165 while (true) { 3166 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc); 3167 // Chain ends at symbol with stopper bit 3168 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1) 3169 break; 3170 } 3171 } 3172 } 3173 } 3174 3175 static inline std::string printPhdrFlags(unsigned Flag) { 3176 std::string Str; 3177 Str = (Flag & PF_R) ? "R" : " "; 3178 Str += (Flag & PF_W) ? "W" : " "; 3179 Str += (Flag & PF_X) ? "E" : " "; 3180 return Str; 3181 } 3182 3183 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO 3184 // PT_TLS must only have SHF_TLS sections 3185 template <class ELFT> 3186 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr, 3187 const Elf_Shdr &Sec) { 3188 return (((Sec.sh_flags & ELF::SHF_TLS) && 3189 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) || 3190 (Phdr.p_type == ELF::PT_GNU_RELRO))) || 3191 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS)); 3192 } 3193 3194 // Non-SHT_NOBITS must have its offset inside the segment 3195 // Only non-zero section can be at end of segment 3196 template <class ELFT> 3197 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3198 if (Sec.sh_type == ELF::SHT_NOBITS) 3199 return true; 3200 bool IsSpecial = 3201 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3202 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3203 auto SectionSize = 3204 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3205 if (Sec.sh_offset >= Phdr.p_offset) 3206 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset) 3207 /*only non-zero sized sections at end*/ && 3208 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz)); 3209 return false; 3210 } 3211 3212 // SHF_ALLOC must have VMA inside segment 3213 // Only non-zero section can be at end of segment 3214 template <class ELFT> 3215 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3216 if (!(Sec.sh_flags & ELF::SHF_ALLOC)) 3217 return true; 3218 bool IsSpecial = 3219 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3220 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3221 auto SectionSize = 3222 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3223 if (Sec.sh_addr >= Phdr.p_vaddr) 3224 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) && 3225 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz)); 3226 return false; 3227 } 3228 3229 // No section with zero size must be at start or end of PT_DYNAMIC 3230 template <class ELFT> 3231 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3232 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0) 3233 return true; 3234 // Is section within the phdr both based on offset and VMA ? 3235 return ((Sec.sh_type == ELF::SHT_NOBITS) || 3236 (Sec.sh_offset > Phdr.p_offset && 3237 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) && 3238 (!(Sec.sh_flags & ELF::SHF_ALLOC) || 3239 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz)); 3240 } 3241 3242 template <class ELFT> 3243 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3244 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3245 unsigned Width = ELFT::Is64Bits ? 18 : 10; 3246 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7; 3247 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align; 3248 3249 const Elf_Ehdr *Header = Obj->getHeader(); 3250 Field Fields[8] = {2, 17, 26, 37 + Bias, 3251 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias}; 3252 OS << "\nElf file type is " 3253 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n" 3254 << "Entry point " << format_hex(Header->e_entry, 3) << "\n" 3255 << "There are " << Header->e_phnum << " program headers," 3256 << " starting at offset " << Header->e_phoff << "\n\n" 3257 << "Program Headers:\n"; 3258 if (ELFT::Is64Bits) 3259 OS << " Type Offset VirtAddr PhysAddr " 3260 << " FileSiz MemSiz Flg Align\n"; 3261 else 3262 OS << " Type Offset VirtAddr PhysAddr FileSiz " 3263 << "MemSiz Flg Align\n"; 3264 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) { 3265 Type = getElfPtType(Header->e_machine, Phdr.p_type); 3266 Offset = to_string(format_hex(Phdr.p_offset, 8)); 3267 VMA = to_string(format_hex(Phdr.p_vaddr, Width)); 3268 LMA = to_string(format_hex(Phdr.p_paddr, Width)); 3269 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth)); 3270 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth)); 3271 Flag = printPhdrFlags(Phdr.p_flags); 3272 Align = to_string(format_hex(Phdr.p_align, 1)); 3273 Fields[0].Str = Type; 3274 Fields[1].Str = Offset; 3275 Fields[2].Str = VMA; 3276 Fields[3].Str = LMA; 3277 Fields[4].Str = FileSz; 3278 Fields[5].Str = MemSz; 3279 Fields[6].Str = Flag; 3280 Fields[7].Str = Align; 3281 for (auto Field : Fields) 3282 printField(Field); 3283 if (Phdr.p_type == ELF::PT_INTERP) { 3284 OS << "\n [Requesting program interpreter: "; 3285 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]"; 3286 } 3287 OS << "\n"; 3288 } 3289 OS << "\n Section to Segment mapping:\n Segment Sections...\n"; 3290 int Phnum = 0; 3291 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3292 std::string Sections; 3293 OS << format(" %2.2d ", Phnum++); 3294 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3295 // Check if each section is in a segment and then print mapping. 3296 // readelf additionally makes sure it does not print zero sized sections 3297 // at end of segments and for PT_DYNAMIC both start and end of section 3298 // .tbss must only be shown in PT_TLS section. 3299 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) && 3300 ((Sec.sh_flags & ELF::SHF_TLS) != 0) && 3301 Phdr.p_type != ELF::PT_TLS; 3302 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) && 3303 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) && 3304 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) 3305 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " "; 3306 } 3307 OS << Sections << "\n"; 3308 OS.flush(); 3309 } 3310 } 3311 3312 template <class ELFT> 3313 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R, 3314 bool IsRela) { 3315 SmallString<32> RelocName; 3316 StringRef SymbolName; 3317 unsigned Width = ELFT::Is64Bits ? 16 : 8; 3318 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3319 // First two fields are bit width dependent. The rest of them are after are 3320 // fixed width. 3321 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 3322 3323 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL()); 3324 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3325 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 3326 SymbolName = 3327 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 3328 std::string Addend, Info, Offset, Value; 3329 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 3330 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 3331 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 3332 int64_t RelAddend = R.r_addend; 3333 if (!SymbolName.empty() && IsRela) { 3334 if (R.r_addend < 0) 3335 Addend = " - "; 3336 else 3337 Addend = " + "; 3338 } 3339 3340 if (SymbolName.empty() && Sym->getValue() == 0) 3341 Value = ""; 3342 3343 if (IsRela) 3344 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1)); 3345 3346 3347 Fields[0].Str = Offset; 3348 Fields[1].Str = Info; 3349 Fields[2].Str = RelocName.c_str(); 3350 Fields[3].Str = Value; 3351 Fields[4].Str = SymbolName; 3352 for (auto &Field : Fields) 3353 printField(Field); 3354 OS << Addend; 3355 OS << "\n"; 3356 } 3357 3358 template <class ELFT> 3359 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3360 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3361 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3362 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 3363 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3364 if (DynRelaRegion.Size > 0) { 3365 OS << "\n'RELA' relocation section at offset " 3366 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) - 3367 Obj->base(), 3368 1) << " contains " << DynRelaRegion.Size << " bytes:\n"; 3369 printRelocHeader(ELF::SHT_RELA); 3370 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3371 printDynamicRelocation(Obj, Rela, true); 3372 } 3373 if (DynRelRegion.Size > 0) { 3374 OS << "\n'REL' relocation section at offset " 3375 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) - 3376 Obj->base(), 3377 1) << " contains " << DynRelRegion.Size << " bytes:\n"; 3378 printRelocHeader(ELF::SHT_REL); 3379 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3380 Elf_Rela Rela; 3381 Rela.r_offset = Rel.r_offset; 3382 Rela.r_info = Rel.r_info; 3383 Rela.r_addend = 0; 3384 printDynamicRelocation(Obj, Rela, false); 3385 } 3386 } 3387 if (DynRelrRegion.Size > 0) { 3388 OS << "\n'RELR' relocation section at offset " 3389 << format_hex(reinterpret_cast<const uint8_t *>(DynRelrRegion.Addr) - 3390 Obj->base(), 3391 1) << " contains " << DynRelrRegion.Size << " bytes:\n"; 3392 printRelocHeader(ELF::SHT_REL); 3393 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 3394 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 3395 for (const Elf_Rela &Rela : RelrRelas) { 3396 printDynamicRelocation(Obj, Rela, false); 3397 } 3398 } 3399 if (DynPLTRelRegion.Size) { 3400 OS << "\n'PLT' relocation section at offset " 3401 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) - 3402 Obj->base(), 3403 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n"; 3404 } 3405 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) { 3406 printRelocHeader(ELF::SHT_RELA); 3407 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3408 printDynamicRelocation(Obj, Rela, true); 3409 } else { 3410 printRelocHeader(ELF::SHT_REL); 3411 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3412 Elf_Rela Rela; 3413 Rela.r_offset = Rel.r_offset; 3414 Rela.r_info = Rel.r_info; 3415 Rela.r_addend = 0; 3416 printDynamicRelocation(Obj, Rela, false); 3417 } 3418 } 3419 } 3420 3421 // Hash histogram shows statistics of how efficient the hash was for the 3422 // dynamic symbol table. The table shows number of hash buckets for different 3423 // lengths of chains as absolute number and percentage of the total buckets. 3424 // Additionally cumulative coverage of symbols for each set of buckets. 3425 template <class ELFT> 3426 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3427 3428 const Elf_Hash *HashTable = this->dumper()->getHashTable(); 3429 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable(); 3430 3431 // Print histogram for .hash section 3432 if (HashTable) { 3433 size_t NBucket = HashTable->nbucket; 3434 size_t NChain = HashTable->nchain; 3435 ArrayRef<Elf_Word> Buckets = HashTable->buckets(); 3436 ArrayRef<Elf_Word> Chains = HashTable->chains(); 3437 size_t TotalSyms = 0; 3438 // If hash table is correct, we have at least chains with 0 length 3439 size_t MaxChain = 1; 3440 size_t CumulativeNonZero = 0; 3441 3442 if (NChain == 0 || NBucket == 0) 3443 return; 3444 3445 std::vector<size_t> ChainLen(NBucket, 0); 3446 // Go over all buckets and and note chain lengths of each bucket (total 3447 // unique chain lengths). 3448 for (size_t B = 0; B < NBucket; B++) { 3449 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C]) 3450 if (MaxChain <= ++ChainLen[B]) 3451 MaxChain++; 3452 TotalSyms += ChainLen[B]; 3453 } 3454 3455 if (!TotalSyms) 3456 return; 3457 3458 std::vector<size_t> Count(MaxChain, 0) ; 3459 // Count how long is the chain for each bucket 3460 for (size_t B = 0; B < NBucket; B++) 3461 ++Count[ChainLen[B]]; 3462 // Print Number of buckets with each chain lengths and their cumulative 3463 // coverage of the symbols 3464 OS << "Histogram for bucket list length (total of " << NBucket 3465 << " buckets)\n" 3466 << " Length Number % of total Coverage\n"; 3467 for (size_t I = 0; I < MaxChain; I++) { 3468 CumulativeNonZero += Count[I] * I; 3469 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3470 (Count[I] * 100.0) / NBucket, 3471 (CumulativeNonZero * 100.0) / TotalSyms); 3472 } 3473 } 3474 3475 // Print histogram for .gnu.hash section 3476 if (GnuHashTable) { 3477 size_t NBucket = GnuHashTable->nbuckets; 3478 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets(); 3479 unsigned NumSyms = this->dumper()->dynamic_symbols().size(); 3480 if (!NumSyms) 3481 return; 3482 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms); 3483 size_t Symndx = GnuHashTable->symndx; 3484 size_t TotalSyms = 0; 3485 size_t MaxChain = 1; 3486 size_t CumulativeNonZero = 0; 3487 3488 if (Chains.empty() || NBucket == 0) 3489 return; 3490 3491 std::vector<size_t> ChainLen(NBucket, 0); 3492 3493 for (size_t B = 0; B < NBucket; B++) { 3494 if (!Buckets[B]) 3495 continue; 3496 size_t Len = 1; 3497 for (size_t C = Buckets[B] - Symndx; 3498 C < Chains.size() && (Chains[C] & 1) == 0; C++) 3499 if (MaxChain < ++Len) 3500 MaxChain++; 3501 ChainLen[B] = Len; 3502 TotalSyms += Len; 3503 } 3504 MaxChain++; 3505 3506 if (!TotalSyms) 3507 return; 3508 3509 std::vector<size_t> Count(MaxChain, 0) ; 3510 for (size_t B = 0; B < NBucket; B++) 3511 ++Count[ChainLen[B]]; 3512 // Print Number of buckets with each chain lengths and their cumulative 3513 // coverage of the symbols 3514 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket 3515 << " buckets)\n" 3516 << " Length Number % of total Coverage\n"; 3517 for (size_t I = 0; I <MaxChain; I++) { 3518 CumulativeNonZero += Count[I] * I; 3519 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3520 (Count[I] * 100.0) / NBucket, 3521 (CumulativeNonZero * 100.0) / TotalSyms); 3522 } 3523 } 3524 } 3525 3526 template <class ELFT> 3527 void GNUStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 3528 OS << "GNUStyle::printCGProfile not implemented\n"; 3529 } 3530 3531 template <class ELFT> 3532 void GNUStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 3533 OS << "GNUStyle::printAddrsig not implemented\n"; 3534 } 3535 3536 static std::string getGNUNoteTypeName(const uint32_t NT) { 3537 static const struct { 3538 uint32_t ID; 3539 const char *Name; 3540 } Notes[] = { 3541 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"}, 3542 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"}, 3543 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"}, 3544 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"}, 3545 {ELF::NT_GNU_PROPERTY_TYPE_0, "NT_GNU_PROPERTY_TYPE_0 (property note)"}, 3546 }; 3547 3548 for (const auto &Note : Notes) 3549 if (Note.ID == NT) 3550 return std::string(Note.Name); 3551 3552 std::string string; 3553 raw_string_ostream OS(string); 3554 OS << format("Unknown note type (0x%08x)", NT); 3555 return OS.str(); 3556 } 3557 3558 static std::string getFreeBSDNoteTypeName(const uint32_t NT) { 3559 static const struct { 3560 uint32_t ID; 3561 const char *Name; 3562 } Notes[] = { 3563 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"}, 3564 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"}, 3565 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"}, 3566 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"}, 3567 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"}, 3568 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"}, 3569 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"}, 3570 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"}, 3571 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS, 3572 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"}, 3573 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"}, 3574 }; 3575 3576 for (const auto &Note : Notes) 3577 if (Note.ID == NT) 3578 return std::string(Note.Name); 3579 3580 std::string string; 3581 raw_string_ostream OS(string); 3582 OS << format("Unknown note type (0x%08x)", NT); 3583 return OS.str(); 3584 } 3585 3586 static std::string getAMDGPUNoteTypeName(const uint32_t NT) { 3587 static const struct { 3588 uint32_t ID; 3589 const char *Name; 3590 } Notes[] = { 3591 {ELF::NT_AMD_AMDGPU_HSA_METADATA, 3592 "NT_AMD_AMDGPU_HSA_METADATA (HSA Metadata)"}, 3593 {ELF::NT_AMD_AMDGPU_ISA, 3594 "NT_AMD_AMDGPU_ISA (ISA Version)"}, 3595 {ELF::NT_AMD_AMDGPU_PAL_METADATA, 3596 "NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)"} 3597 }; 3598 3599 for (const auto &Note : Notes) 3600 if (Note.ID == NT) 3601 return std::string(Note.Name); 3602 3603 std::string string; 3604 raw_string_ostream OS(string); 3605 OS << format("Unknown note type (0x%08x)", NT); 3606 return OS.str(); 3607 } 3608 3609 template <typename ELFT> 3610 static void printGNUProperty(raw_ostream &OS, uint32_t Type, uint32_t DataSize, 3611 ArrayRef<uint8_t> Data) { 3612 switch (Type) { 3613 default: 3614 OS << format(" <application-specific type 0x%x>\n", Type); 3615 return; 3616 case GNU_PROPERTY_STACK_SIZE: { 3617 OS << " stack size: "; 3618 if (DataSize == sizeof(typename ELFT::uint)) 3619 OS << format("0x%llx\n", 3620 (uint64_t)(*(const typename ELFT::Addr *)Data.data())); 3621 else 3622 OS << format("<corrupt length: 0x%x>\n", DataSize); 3623 break; 3624 } 3625 case GNU_PROPERTY_NO_COPY_ON_PROTECTED: 3626 OS << " no copy on protected"; 3627 if (DataSize) 3628 OS << format(" <corrupt length: 0x%x>", DataSize); 3629 OS << "\n"; 3630 break; 3631 case GNU_PROPERTY_X86_FEATURE_1_AND: 3632 OS << " X86 features: "; 3633 if (DataSize != 4 && DataSize != 8) { 3634 OS << format("<corrupt length: 0x%x>\n", DataSize); 3635 break; 3636 } 3637 uint64_t CFProtection = 3638 (DataSize == 4) 3639 ? support::endian::read32<ELFT::TargetEndianness>(Data.data()) 3640 : support::endian::read64<ELFT::TargetEndianness>(Data.data()); 3641 if (CFProtection == 0) { 3642 OS << "none\n"; 3643 break; 3644 } 3645 if (CFProtection & GNU_PROPERTY_X86_FEATURE_1_IBT) { 3646 OS << "IBT"; 3647 CFProtection &= ~GNU_PROPERTY_X86_FEATURE_1_IBT; 3648 if (CFProtection) 3649 OS << ", "; 3650 } 3651 if (CFProtection & GNU_PROPERTY_X86_FEATURE_1_SHSTK) { 3652 OS << "SHSTK"; 3653 CFProtection &= ~GNU_PROPERTY_X86_FEATURE_1_SHSTK; 3654 if (CFProtection) 3655 OS << ", "; 3656 } 3657 if (CFProtection) 3658 OS << format("<unknown flags: 0x%llx>", CFProtection); 3659 OS << "\n"; 3660 break; 3661 } 3662 } 3663 3664 template <typename ELFT> 3665 static void printGNUNote(raw_ostream &OS, uint32_t NoteType, 3666 ArrayRef<typename ELFT::Word> Words, size_t Size) { 3667 using Elf_Word = typename ELFT::Word; 3668 3669 switch (NoteType) { 3670 default: 3671 return; 3672 case ELF::NT_GNU_ABI_TAG: { 3673 static const char *OSNames[] = { 3674 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl", 3675 }; 3676 3677 StringRef OSName = "Unknown"; 3678 if (Words[0] < array_lengthof(OSNames)) 3679 OSName = OSNames[Words[0]]; 3680 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3]; 3681 3682 if (Words.size() < 4) 3683 OS << " <corrupt GNU_ABI_TAG>"; 3684 else 3685 OS << " OS: " << OSName << ", ABI: " << Major << "." << Minor << "." 3686 << Patch; 3687 break; 3688 } 3689 case ELF::NT_GNU_BUILD_ID: { 3690 OS << " Build ID: "; 3691 ArrayRef<uint8_t> ID(reinterpret_cast<const uint8_t *>(Words.data()), Size); 3692 for (const auto &B : ID) 3693 OS << format_hex_no_prefix(B, 2); 3694 break; 3695 } 3696 case ELF::NT_GNU_GOLD_VERSION: 3697 OS << " Version: " 3698 << StringRef(reinterpret_cast<const char *>(Words.data()), Size); 3699 break; 3700 case ELF::NT_GNU_PROPERTY_TYPE_0: 3701 OS << " Properties:"; 3702 3703 ArrayRef<uint8_t> Arr(reinterpret_cast<const uint8_t *>(Words.data()), 3704 Size); 3705 while (Arr.size() >= 8) { 3706 uint32_t Type = *reinterpret_cast<const Elf_Word *>(Arr.data()); 3707 uint32_t DataSize = *reinterpret_cast<const Elf_Word *>(Arr.data() + 4); 3708 Arr = Arr.drop_front(8); 3709 3710 // Take padding size into account if present. 3711 uint64_t PaddedSize = alignTo(DataSize, sizeof(typename ELFT::uint)); 3712 if (Arr.size() < PaddedSize) { 3713 OS << format(" <corrupt type (0x%x) datasz: 0x%x>\n", Type, 3714 DataSize); 3715 break; 3716 } 3717 printGNUProperty<ELFT>(OS, Type, DataSize, Arr.take_front(PaddedSize)); 3718 Arr = Arr.drop_front(PaddedSize); 3719 } 3720 3721 if (!Arr.empty()) 3722 OS << " <corrupted GNU_PROPERTY_TYPE_0>"; 3723 break; 3724 } 3725 OS << '\n'; 3726 } 3727 3728 template <typename ELFT> 3729 static void printAMDGPUNote(raw_ostream &OS, uint32_t NoteType, 3730 ArrayRef<typename ELFT::Word> Words, size_t Size) { 3731 switch (NoteType) { 3732 default: 3733 return; 3734 case ELF::NT_AMD_AMDGPU_HSA_METADATA: 3735 OS << " HSA Metadata:\n" 3736 << StringRef(reinterpret_cast<const char *>(Words.data()), Size); 3737 break; 3738 case ELF::NT_AMD_AMDGPU_ISA: 3739 OS << " ISA Version:\n" 3740 << " " 3741 << StringRef(reinterpret_cast<const char *>(Words.data()), Size); 3742 break; 3743 case ELF::NT_AMD_AMDGPU_PAL_METADATA: 3744 const uint32_t *PALMetadataBegin = reinterpret_cast<const uint32_t *>(Words.data()); 3745 const uint32_t *PALMetadataEnd = PALMetadataBegin + Size; 3746 std::vector<uint32_t> PALMetadata(PALMetadataBegin, PALMetadataEnd); 3747 std::string PALMetadataString; 3748 auto Error = AMDGPU::PALMD::toString(PALMetadata, PALMetadataString); 3749 OS << " PAL Metadata:\n"; 3750 if (Error) { 3751 OS << " Invalid"; 3752 return; 3753 } 3754 OS << PALMetadataString; 3755 break; 3756 } 3757 OS.flush(); 3758 } 3759 3760 template <class ELFT> 3761 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3762 const Elf_Ehdr *e = Obj->getHeader(); 3763 bool IsCore = e->e_type == ELF::ET_CORE; 3764 3765 auto PrintHeader = [&](const typename ELFT::Off Offset, 3766 const typename ELFT::Addr Size) { 3767 OS << "Displaying notes found at file offset " << format_hex(Offset, 10) 3768 << " with length " << format_hex(Size, 10) << ":\n" 3769 << " Owner Data size\tDescription\n"; 3770 }; 3771 3772 auto ProcessNote = [&](const Elf_Note &Note) { 3773 StringRef Name = Note.getName(); 3774 ArrayRef<Elf_Word> Descriptor = Note.getDesc(); 3775 Elf_Word Type = Note.getType(); 3776 3777 OS << " " << Name << std::string(22 - Name.size(), ' ') 3778 << format_hex(Descriptor.size(), 10) << '\t'; 3779 3780 if (Name == "GNU") { 3781 OS << getGNUNoteTypeName(Type) << '\n'; 3782 printGNUNote<ELFT>(OS, Type, Descriptor, Descriptor.size()); 3783 } else if (Name == "FreeBSD") { 3784 OS << getFreeBSDNoteTypeName(Type) << '\n'; 3785 } else if (Name == "AMD") { 3786 OS << getAMDGPUNoteTypeName(Type) << '\n'; 3787 printAMDGPUNote<ELFT>(OS, Type, Descriptor, Descriptor.size()); 3788 } else { 3789 OS << "Unknown note type: (" << format_hex(Type, 10) << ')'; 3790 } 3791 OS << '\n'; 3792 }; 3793 3794 if (IsCore) { 3795 for (const auto &P : unwrapOrError(Obj->program_headers())) { 3796 if (P.p_type != PT_NOTE) 3797 continue; 3798 PrintHeader(P.p_offset, P.p_filesz); 3799 Error Err = Error::success(); 3800 for (const auto &Note : Obj->notes(P, Err)) 3801 ProcessNote(Note); 3802 if (Err) 3803 error(std::move(Err)); 3804 } 3805 } else { 3806 for (const auto &S : unwrapOrError(Obj->sections())) { 3807 if (S.sh_type != SHT_NOTE) 3808 continue; 3809 PrintHeader(S.sh_offset, S.sh_size); 3810 Error Err = Error::success(); 3811 for (const auto &Note : Obj->notes(S, Err)) 3812 ProcessNote(Note); 3813 if (Err) 3814 error(std::move(Err)); 3815 } 3816 } 3817 } 3818 3819 template <class ELFT> 3820 void GNUStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 3821 OS << "printELFLinkerOptions not implemented!\n"; 3822 } 3823 3824 template <class ELFT> 3825 void GNUStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 3826 size_t Bias = ELFT::Is64Bits ? 8 : 0; 3827 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 3828 OS.PadToColumn(2); 3829 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 3830 OS.PadToColumn(11 + Bias); 3831 OS << format_decimal(Parser.getGotOffset(E), 6) << "(gp)"; 3832 OS.PadToColumn(22 + Bias); 3833 OS << format_hex_no_prefix(*E, 8 + Bias); 3834 OS.PadToColumn(31 + 2 * Bias); 3835 OS << Purpose << "\n"; 3836 }; 3837 3838 OS << (Parser.IsStatic ? "Static GOT:\n" : "Primary GOT:\n"); 3839 OS << " Canonical gp value: " 3840 << format_hex_no_prefix(Parser.getGp(), 8 + Bias) << "\n\n"; 3841 3842 OS << " Reserved entries:\n"; 3843 OS << " Address Access Initial Purpose\n"; 3844 PrintEntry(Parser.getGotLazyResolver(), "Lazy resolver"); 3845 if (Parser.getGotModulePointer()) 3846 PrintEntry(Parser.getGotModulePointer(), "Module pointer (GNU extension)"); 3847 3848 if (!Parser.getLocalEntries().empty()) { 3849 OS << "\n"; 3850 OS << " Local entries:\n"; 3851 OS << " Address Access Initial\n"; 3852 for (auto &E : Parser.getLocalEntries()) 3853 PrintEntry(&E, ""); 3854 } 3855 3856 if (Parser.IsStatic) 3857 return; 3858 3859 if (!Parser.getGlobalEntries().empty()) { 3860 OS << "\n"; 3861 OS << " Global entries:\n"; 3862 OS << " Address Access Initial Sym.Val. Type Ndx Name\n"; 3863 for (auto &E : Parser.getGlobalEntries()) { 3864 const Elf_Sym *Sym = Parser.getGotSym(&E); 3865 std::string SymName = this->dumper()->getFullSymbolName( 3866 Sym, this->dumper()->getDynamicStringTable(), false); 3867 3868 OS.PadToColumn(2); 3869 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 3870 OS.PadToColumn(11 + Bias); 3871 OS << to_string(format_decimal(Parser.getGotOffset(&E), 6)) + "(gp)"; 3872 OS.PadToColumn(22 + Bias); 3873 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 3874 OS.PadToColumn(31 + 2 * Bias); 3875 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 3876 OS.PadToColumn(40 + 3 * Bias); 3877 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 3878 OS.PadToColumn(48 + 3 * Bias); 3879 OS << getSymbolSectionNdx(Parser.Obj, Sym, 3880 this->dumper()->dynamic_symbols().begin()); 3881 OS.PadToColumn(52 + 3 * Bias); 3882 OS << SymName << "\n"; 3883 } 3884 } 3885 3886 if (!Parser.getOtherEntries().empty()) 3887 OS << "\n Number of TLS and multi-GOT entries " 3888 << Parser.getOtherEntries().size() << "\n"; 3889 } 3890 3891 template <class ELFT> 3892 void GNUStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 3893 size_t Bias = ELFT::Is64Bits ? 8 : 0; 3894 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 3895 OS.PadToColumn(2); 3896 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 3897 OS.PadToColumn(11 + Bias); 3898 OS << format_hex_no_prefix(*E, 8 + Bias); 3899 OS.PadToColumn(20 + 2 * Bias); 3900 OS << Purpose << "\n"; 3901 }; 3902 3903 OS << "PLT GOT:\n\n"; 3904 3905 OS << " Reserved entries:\n"; 3906 OS << " Address Initial Purpose\n"; 3907 PrintEntry(Parser.getPltLazyResolver(), "PLT lazy resolver"); 3908 if (Parser.getPltModulePointer()) 3909 PrintEntry(Parser.getGotModulePointer(), "Module pointer"); 3910 3911 if (!Parser.getPltEntries().empty()) { 3912 OS << "\n"; 3913 OS << " Entries:\n"; 3914 OS << " Address Initial Sym.Val. Type Ndx Name\n"; 3915 for (auto &E : Parser.getPltEntries()) { 3916 const Elf_Sym *Sym = Parser.getPltSym(&E); 3917 std::string SymName = this->dumper()->getFullSymbolName( 3918 Sym, this->dumper()->getDynamicStringTable(), false); 3919 3920 OS.PadToColumn(2); 3921 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 3922 OS.PadToColumn(11 + Bias); 3923 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 3924 OS.PadToColumn(20 + 2 * Bias); 3925 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 3926 OS.PadToColumn(29 + 3 * Bias); 3927 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 3928 OS.PadToColumn(37 + 3 * Bias); 3929 OS << getSymbolSectionNdx(Parser.Obj, Sym, 3930 this->dumper()->dynamic_symbols().begin()); 3931 OS.PadToColumn(41 + 3 * Bias); 3932 OS << SymName << "\n"; 3933 } 3934 } 3935 } 3936 3937 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 3938 const Elf_Ehdr *e = Obj->getHeader(); 3939 { 3940 DictScope D(W, "ElfHeader"); 3941 { 3942 DictScope D(W, "Ident"); 3943 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4)); 3944 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 3945 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA], 3946 makeArrayRef(ElfDataEncoding)); 3947 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]); 3948 3949 auto OSABI = makeArrayRef(ElfOSABI); 3950 if (e->e_ident[ELF::EI_OSABI] >= ELF::ELFOSABI_FIRST_ARCH && 3951 e->e_ident[ELF::EI_OSABI] <= ELF::ELFOSABI_LAST_ARCH) { 3952 switch (e->e_machine) { 3953 case ELF::EM_AMDGPU: 3954 OSABI = makeArrayRef(AMDGPUElfOSABI); 3955 break; 3956 case ELF::EM_ARM: 3957 OSABI = makeArrayRef(ARMElfOSABI); 3958 break; 3959 case ELF::EM_TI_C6000: 3960 OSABI = makeArrayRef(C6000ElfOSABI); 3961 break; 3962 } 3963 } 3964 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI], OSABI); 3965 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]); 3966 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD)); 3967 } 3968 3969 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType)); 3970 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType)); 3971 W.printNumber("Version", e->e_version); 3972 W.printHex("Entry", e->e_entry); 3973 W.printHex("ProgramHeaderOffset", e->e_phoff); 3974 W.printHex("SectionHeaderOffset", e->e_shoff); 3975 if (e->e_machine == EM_MIPS) 3976 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags), 3977 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 3978 unsigned(ELF::EF_MIPS_MACH)); 3979 else if (e->e_machine == EM_AMDGPU) 3980 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderAMDGPUFlags), 3981 unsigned(ELF::EF_AMDGPU_MACH)); 3982 else if (e->e_machine == EM_RISCV) 3983 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); 3984 else 3985 W.printFlags("Flags", e->e_flags); 3986 W.printNumber("HeaderSize", e->e_ehsize); 3987 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize); 3988 W.printNumber("ProgramHeaderCount", e->e_phnum); 3989 W.printNumber("SectionHeaderEntrySize", e->e_shentsize); 3990 W.printString("SectionHeaderCount", getSectionHeadersNumString(Obj)); 3991 W.printString("StringTableSectionIndex", getSectionHeaderTableIndexString(Obj)); 3992 } 3993 } 3994 3995 template <class ELFT> 3996 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) { 3997 DictScope Lists(W, "Groups"); 3998 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 3999 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 4000 for (const GroupSection &G : V) { 4001 DictScope D(W, "Group"); 4002 W.printNumber("Name", G.Name, G.ShName); 4003 W.printNumber("Index", G.Index); 4004 W.printNumber("Link", G.Link); 4005 W.printNumber("Info", G.Info); 4006 W.printHex("Type", getGroupType(G.Type), G.Type); 4007 W.startLine() << "Signature: " << G.Signature << "\n"; 4008 4009 ListScope L(W, "Section(s) in group"); 4010 for (const GroupMember &GM : G.Members) { 4011 const GroupSection *MainGroup = Map[GM.Index]; 4012 if (MainGroup != &G) { 4013 W.flush(); 4014 errs() << "Error: " << GM.Name << " (" << GM.Index 4015 << ") in a group " + G.Name + " (" << G.Index 4016 << ") is already in a group " + MainGroup->Name + " (" 4017 << MainGroup->Index << ")\n"; 4018 errs().flush(); 4019 continue; 4020 } 4021 W.startLine() << GM.Name << " (" << GM.Index << ")\n"; 4022 } 4023 } 4024 4025 if (V.empty()) 4026 W.startLine() << "There are no group sections in the file.\n"; 4027 } 4028 4029 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) { 4030 ListScope D(W, "Relocations"); 4031 4032 int SectionNumber = -1; 4033 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4034 ++SectionNumber; 4035 4036 if (Sec.sh_type != ELF::SHT_REL && 4037 Sec.sh_type != ELF::SHT_RELA && 4038 Sec.sh_type != ELF::SHT_RELR && 4039 Sec.sh_type != ELF::SHT_ANDROID_REL && 4040 Sec.sh_type != ELF::SHT_ANDROID_RELA && 4041 Sec.sh_type != ELF::SHT_ANDROID_RELR) 4042 continue; 4043 4044 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4045 4046 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; 4047 W.indent(); 4048 4049 printRelocations(&Sec, Obj); 4050 4051 W.unindent(); 4052 W.startLine() << "}\n"; 4053 } 4054 } 4055 4056 template <class ELFT> 4057 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) { 4058 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 4059 4060 switch (Sec->sh_type) { 4061 case ELF::SHT_REL: 4062 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) { 4063 Elf_Rela Rela; 4064 Rela.r_offset = R.r_offset; 4065 Rela.r_info = R.r_info; 4066 Rela.r_addend = 0; 4067 printRelocation(Obj, Rela, SymTab); 4068 } 4069 break; 4070 case ELF::SHT_RELA: 4071 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec))) 4072 printRelocation(Obj, R, SymTab); 4073 break; 4074 case ELF::SHT_RELR: 4075 case ELF::SHT_ANDROID_RELR: { 4076 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(Sec)); 4077 if (opts::RawRelr) { 4078 for (const Elf_Relr &R : Relrs) 4079 W.startLine() << W.hex(R) << "\n"; 4080 } else { 4081 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4082 for (const Elf_Rela &R : RelrRelas) 4083 printRelocation(Obj, R, SymTab); 4084 } 4085 break; 4086 } 4087 case ELF::SHT_ANDROID_REL: 4088 case ELF::SHT_ANDROID_RELA: 4089 for (const Elf_Rela &R : unwrapOrError(Obj->android_relas(Sec))) 4090 printRelocation(Obj, R, SymTab); 4091 break; 4092 } 4093 } 4094 4095 template <class ELFT> 4096 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel, 4097 const Elf_Shdr *SymTab) { 4098 SmallString<32> RelocName; 4099 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4100 StringRef TargetName; 4101 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab)); 4102 if (Sym && Sym->getType() == ELF::STT_SECTION) { 4103 const Elf_Shdr *Sec = unwrapOrError( 4104 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 4105 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 4106 } else if (Sym) { 4107 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 4108 TargetName = unwrapOrError(Sym->getName(StrTable)); 4109 } 4110 4111 if (opts::ExpandRelocs) { 4112 DictScope Group(W, "Relocation"); 4113 W.printHex("Offset", Rel.r_offset); 4114 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4115 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-", 4116 Rel.getSymbol(Obj->isMips64EL())); 4117 W.printHex("Addend", Rel.r_addend); 4118 } else { 4119 raw_ostream &OS = W.startLine(); 4120 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4121 << (!TargetName.empty() ? TargetName : "-") << " " 4122 << W.hex(Rel.r_addend) << "\n"; 4123 } 4124 } 4125 4126 template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) { 4127 ListScope SectionsD(W, "Sections"); 4128 4129 int SectionIndex = -1; 4130 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4131 ++SectionIndex; 4132 4133 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4134 4135 DictScope SectionD(W, "Section"); 4136 W.printNumber("Index", SectionIndex); 4137 W.printNumber("Name", Name, Sec.sh_name); 4138 W.printHex( 4139 "Type", 4140 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type), 4141 Sec.sh_type); 4142 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags), 4143 std::end(ElfSectionFlags)); 4144 switch (Obj->getHeader()->e_machine) { 4145 case EM_ARM: 4146 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags), 4147 std::end(ElfARMSectionFlags)); 4148 break; 4149 case EM_HEXAGON: 4150 SectionFlags.insert(SectionFlags.end(), 4151 std::begin(ElfHexagonSectionFlags), 4152 std::end(ElfHexagonSectionFlags)); 4153 break; 4154 case EM_MIPS: 4155 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags), 4156 std::end(ElfMipsSectionFlags)); 4157 break; 4158 case EM_X86_64: 4159 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags), 4160 std::end(ElfX86_64SectionFlags)); 4161 break; 4162 case EM_XCORE: 4163 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags), 4164 std::end(ElfXCoreSectionFlags)); 4165 break; 4166 default: 4167 // Nothing to do. 4168 break; 4169 } 4170 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags)); 4171 W.printHex("Address", Sec.sh_addr); 4172 W.printHex("Offset", Sec.sh_offset); 4173 W.printNumber("Size", Sec.sh_size); 4174 W.printNumber("Link", Sec.sh_link); 4175 W.printNumber("Info", Sec.sh_info); 4176 W.printNumber("AddressAlignment", Sec.sh_addralign); 4177 W.printNumber("EntrySize", Sec.sh_entsize); 4178 4179 if (opts::SectionRelocations) { 4180 ListScope D(W, "Relocations"); 4181 printRelocations(&Sec, Obj); 4182 } 4183 4184 if (opts::SectionSymbols) { 4185 ListScope D(W, "Symbols"); 4186 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec(); 4187 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 4188 4189 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) { 4190 const Elf_Shdr *SymSec = unwrapOrError( 4191 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable())); 4192 if (SymSec == &Sec) 4193 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(), 4194 StrTable, false); 4195 } 4196 } 4197 4198 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) { 4199 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec)); 4200 W.printBinaryBlock("SectionData", 4201 StringRef((const char *)Data.data(), Data.size())); 4202 } 4203 } 4204 } 4205 4206 template <class ELFT> 4207 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 4208 const Elf_Sym *First, StringRef StrTable, 4209 bool IsDynamic) { 4210 unsigned SectionIndex = 0; 4211 StringRef SectionName; 4212 this->dumper()->getSectionNameIndex(Symbol, First, SectionName, SectionIndex); 4213 std::string FullSymbolName = 4214 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 4215 unsigned char SymbolType = Symbol->getType(); 4216 4217 DictScope D(W, "Symbol"); 4218 W.printNumber("Name", FullSymbolName, Symbol->st_name); 4219 W.printHex("Value", Symbol->st_value); 4220 W.printNumber("Size", Symbol->st_size); 4221 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 4222 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 4223 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 4224 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 4225 else 4226 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes)); 4227 if (Symbol->st_other == 0) 4228 // Usually st_other flag is zero. Do not pollute the output 4229 // by flags enumeration in that case. 4230 W.printNumber("Other", 0); 4231 else { 4232 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags), 4233 std::end(ElfSymOtherFlags)); 4234 if (Obj->getHeader()->e_machine == EM_MIPS) { 4235 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16 4236 // flag overlapped with other ST_MIPS_xxx flags. So consider both 4237 // cases separately. 4238 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16) 4239 SymOtherFlags.insert(SymOtherFlags.end(), 4240 std::begin(ElfMips16SymOtherFlags), 4241 std::end(ElfMips16SymOtherFlags)); 4242 else 4243 SymOtherFlags.insert(SymOtherFlags.end(), 4244 std::begin(ElfMipsSymOtherFlags), 4245 std::end(ElfMipsSymOtherFlags)); 4246 } 4247 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u); 4248 } 4249 W.printHex("Section", SectionName, SectionIndex); 4250 } 4251 4252 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) { 4253 ListScope Group(W, "Symbols"); 4254 this->dumper()->printSymbolsHelper(false); 4255 } 4256 4257 template <class ELFT> 4258 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 4259 ListScope Group(W, "DynamicSymbols"); 4260 this->dumper()->printSymbolsHelper(true); 4261 } 4262 4263 template <class ELFT> 4264 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 4265 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 4266 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 4267 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 4268 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 4269 if (DynRelRegion.Size && DynRelaRegion.Size) 4270 report_fatal_error("There are both REL and RELA dynamic relocations"); 4271 W.startLine() << "Dynamic Relocations {\n"; 4272 W.indent(); 4273 if (DynRelaRegion.Size > 0) 4274 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 4275 printDynamicRelocation(Obj, Rela); 4276 else 4277 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 4278 Elf_Rela Rela; 4279 Rela.r_offset = Rel.r_offset; 4280 Rela.r_info = Rel.r_info; 4281 Rela.r_addend = 0; 4282 printDynamicRelocation(Obj, Rela); 4283 } 4284 if (DynRelrRegion.Size > 0) { 4285 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 4286 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4287 for (const Elf_Rela &Rela : RelrRelas) 4288 printDynamicRelocation(Obj, Rela); 4289 } 4290 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) 4291 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 4292 printDynamicRelocation(Obj, Rela); 4293 else 4294 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 4295 Elf_Rela Rela; 4296 Rela.r_offset = Rel.r_offset; 4297 Rela.r_info = Rel.r_info; 4298 Rela.r_addend = 0; 4299 printDynamicRelocation(Obj, Rela); 4300 } 4301 W.unindent(); 4302 W.startLine() << "}\n"; 4303 } 4304 4305 template <class ELFT> 4306 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) { 4307 SmallString<32> RelocName; 4308 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4309 StringRef SymbolName; 4310 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL()); 4311 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 4312 SymbolName = 4313 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 4314 if (opts::ExpandRelocs) { 4315 DictScope Group(W, "Relocation"); 4316 W.printHex("Offset", Rel.r_offset); 4317 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4318 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-"); 4319 W.printHex("Addend", Rel.r_addend); 4320 } else { 4321 raw_ostream &OS = W.startLine(); 4322 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4323 << (!SymbolName.empty() ? SymbolName : "-") << " " 4324 << W.hex(Rel.r_addend) << "\n"; 4325 } 4326 } 4327 4328 template <class ELFT> 4329 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 4330 ListScope L(W, "ProgramHeaders"); 4331 4332 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 4333 DictScope P(W, "ProgramHeader"); 4334 W.printHex("Type", 4335 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type), 4336 Phdr.p_type); 4337 W.printHex("Offset", Phdr.p_offset); 4338 W.printHex("VirtualAddress", Phdr.p_vaddr); 4339 W.printHex("PhysicalAddress", Phdr.p_paddr); 4340 W.printNumber("FileSize", Phdr.p_filesz); 4341 W.printNumber("MemSize", Phdr.p_memsz); 4342 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags)); 4343 W.printNumber("Alignment", Phdr.p_align); 4344 } 4345 } 4346 4347 template <class ELFT> 4348 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 4349 W.startLine() << "Hash Histogram not implemented!\n"; 4350 } 4351 4352 template <class ELFT> 4353 void LLVMStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 4354 ListScope L(W, "CGProfile"); 4355 if (!this->dumper()->getDotCGProfileSec()) 4356 return; 4357 auto CGProfile = 4358 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_CGProfile>( 4359 this->dumper()->getDotCGProfileSec())); 4360 for (const Elf_CGProfile &CGPE : CGProfile) { 4361 DictScope D(W, "CGProfileEntry"); 4362 W.printNumber("From", this->dumper()->getStaticSymbolName(CGPE.cgp_from), 4363 CGPE.cgp_from); 4364 W.printNumber("To", this->dumper()->getStaticSymbolName(CGPE.cgp_to), 4365 CGPE.cgp_to); 4366 W.printNumber("Weight", CGPE.cgp_weight); 4367 } 4368 } 4369 4370 template <class ELFT> 4371 void LLVMStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 4372 ListScope L(W, "Addrsig"); 4373 if (!this->dumper()->getDotAddrsigSec()) 4374 return; 4375 ArrayRef<uint8_t> Contents = unwrapOrError( 4376 Obj->getSectionContents(this->dumper()->getDotAddrsigSec())); 4377 const uint8_t *Cur = Contents.begin(); 4378 const uint8_t *End = Contents.end(); 4379 while (Cur != End) { 4380 unsigned Size; 4381 const char *Err; 4382 uint64_t SymIndex = decodeULEB128(Cur, &Size, Contents.end(), &Err); 4383 if (Err) 4384 reportError(Err); 4385 W.printNumber("Sym", this->dumper()->getStaticSymbolName(SymIndex), 4386 SymIndex); 4387 Cur += Size; 4388 } 4389 } 4390 4391 template <class ELFT> 4392 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 4393 W.startLine() << "printNotes not implemented!\n"; 4394 } 4395 4396 template <class ELFT> 4397 void LLVMStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 4398 ListScope L(W, "LinkerOptions"); 4399 4400 for (const Elf_Shdr &Shdr : unwrapOrError(Obj->sections())) { 4401 if (Shdr.sh_type != ELF::SHT_LLVM_LINKER_OPTIONS) 4402 continue; 4403 4404 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Shdr)); 4405 for (const uint8_t *P = Contents.begin(), *E = Contents.end(); P < E; ) { 4406 StringRef Key = StringRef(reinterpret_cast<const char *>(P)); 4407 StringRef Value = 4408 StringRef(reinterpret_cast<const char *>(P) + Key.size() + 1); 4409 4410 W.printString(Key, Value); 4411 4412 P = P + Key.size() + Value.size() + 2; 4413 } 4414 } 4415 } 4416 4417 template <class ELFT> 4418 void LLVMStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 4419 auto PrintEntry = [&](const Elf_Addr *E) { 4420 W.printHex("Address", Parser.getGotAddress(E)); 4421 W.printNumber("Access", Parser.getGotOffset(E)); 4422 W.printHex("Initial", *E); 4423 }; 4424 4425 DictScope GS(W, Parser.IsStatic ? "Static GOT" : "Primary GOT"); 4426 4427 W.printHex("Canonical gp value", Parser.getGp()); 4428 { 4429 ListScope RS(W, "Reserved entries"); 4430 { 4431 DictScope D(W, "Entry"); 4432 PrintEntry(Parser.getGotLazyResolver()); 4433 W.printString("Purpose", StringRef("Lazy resolver")); 4434 } 4435 4436 if (Parser.getGotModulePointer()) { 4437 DictScope D(W, "Entry"); 4438 PrintEntry(Parser.getGotModulePointer()); 4439 W.printString("Purpose", StringRef("Module pointer (GNU extension)")); 4440 } 4441 } 4442 { 4443 ListScope LS(W, "Local entries"); 4444 for (auto &E : Parser.getLocalEntries()) { 4445 DictScope D(W, "Entry"); 4446 PrintEntry(&E); 4447 } 4448 } 4449 4450 if (Parser.IsStatic) 4451 return; 4452 4453 { 4454 ListScope GS(W, "Global entries"); 4455 for (auto &E : Parser.getGlobalEntries()) { 4456 DictScope D(W, "Entry"); 4457 4458 PrintEntry(&E); 4459 4460 const Elf_Sym *Sym = Parser.getGotSym(&E); 4461 W.printHex("Value", Sym->st_value); 4462 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4463 4464 unsigned SectionIndex = 0; 4465 StringRef SectionName; 4466 this->dumper()->getSectionNameIndex( 4467 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4468 SectionIndex); 4469 W.printHex("Section", SectionName, SectionIndex); 4470 4471 std::string SymName = this->dumper()->getFullSymbolName( 4472 Sym, this->dumper()->getDynamicStringTable(), true); 4473 W.printNumber("Name", SymName, Sym->st_name); 4474 } 4475 } 4476 4477 W.printNumber("Number of TLS and multi-GOT entries", 4478 uint64_t(Parser.getOtherEntries().size())); 4479 } 4480 4481 template <class ELFT> 4482 void LLVMStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 4483 auto PrintEntry = [&](const Elf_Addr *E) { 4484 W.printHex("Address", Parser.getPltAddress(E)); 4485 W.printHex("Initial", *E); 4486 }; 4487 4488 DictScope GS(W, "PLT GOT"); 4489 4490 { 4491 ListScope RS(W, "Reserved entries"); 4492 { 4493 DictScope D(W, "Entry"); 4494 PrintEntry(Parser.getPltLazyResolver()); 4495 W.printString("Purpose", StringRef("PLT lazy resolver")); 4496 } 4497 4498 if (auto E = Parser.getPltModulePointer()) { 4499 DictScope D(W, "Entry"); 4500 PrintEntry(E); 4501 W.printString("Purpose", StringRef("Module pointer")); 4502 } 4503 } 4504 { 4505 ListScope LS(W, "Entries"); 4506 for (auto &E : Parser.getPltEntries()) { 4507 DictScope D(W, "Entry"); 4508 PrintEntry(&E); 4509 4510 const Elf_Sym *Sym = Parser.getPltSym(&E); 4511 W.printHex("Value", Sym->st_value); 4512 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4513 4514 unsigned SectionIndex = 0; 4515 StringRef SectionName; 4516 this->dumper()->getSectionNameIndex( 4517 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4518 SectionIndex); 4519 W.printHex("Section", SectionName, SectionIndex); 4520 4521 std::string SymName = 4522 this->dumper()->getFullSymbolName(Sym, Parser.getPltStrTable(), true); 4523 W.printNumber("Name", SymName, Sym->st_name); 4524 } 4525 } 4526 } 4527