1 //===-- ELFDumper.cpp - ELF-specific dumper ---------------------*- C++ -*-===// 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 /// \brief This file implements the ELF-specific dumper for llvm-readobj. 12 /// 13 //===----------------------------------------------------------------------===// 14 15 #include "ARMEHABIPrinter.h" 16 #include "Error.h" 17 #include "ObjDumper.h" 18 #include "StackMapPrinter.h" 19 #include "llvm-readobj.h" 20 #include "llvm/ADT/Optional.h" 21 #include "llvm/ADT/SmallString.h" 22 #include "llvm/ADT/StringExtras.h" 23 #include "llvm/Object/ELFObjectFile.h" 24 #include "llvm/Support/ARMAttributeParser.h" 25 #include "llvm/Support/ARMBuildAttributes.h" 26 #include "llvm/Support/Compiler.h" 27 #include "llvm/Support/Format.h" 28 #include "llvm/Support/FormattedStream.h" 29 #include "llvm/Support/MathExtras.h" 30 #include "llvm/Support/MipsABIFlags.h" 31 #include "llvm/Support/ScopedPrinter.h" 32 #include "llvm/Support/raw_ostream.h" 33 34 using namespace llvm; 35 using namespace llvm::object; 36 using namespace ELF; 37 38 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \ 39 case ns::enum: return #enum; 40 41 #define ENUM_ENT(enum, altName) \ 42 { #enum, altName, ELF::enum } 43 44 #define ENUM_ENT_1(enum) \ 45 { #enum, #enum, ELF::enum } 46 47 #define LLVM_READOBJ_PHDR_ENUM(ns, enum) \ 48 case ns::enum: \ 49 return std::string(#enum).substr(3); 50 51 #define TYPEDEF_ELF_TYPES(ELFT) \ 52 typedef ELFFile<ELFT> ELFO; \ 53 typedef typename ELFO::Elf_Shdr Elf_Shdr; \ 54 typedef typename ELFO::Elf_Sym Elf_Sym; \ 55 typedef typename ELFO::Elf_Dyn Elf_Dyn; \ 56 typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range; \ 57 typedef typename ELFO::Elf_Rel Elf_Rel; \ 58 typedef typename ELFO::Elf_Rela Elf_Rela; \ 59 typedef typename ELFO::Elf_Rel_Range Elf_Rel_Range; \ 60 typedef typename ELFO::Elf_Rela_Range Elf_Rela_Range; \ 61 typedef typename ELFO::Elf_Phdr Elf_Phdr; \ 62 typedef typename ELFO::Elf_Half Elf_Half; \ 63 typedef typename ELFO::Elf_Ehdr Elf_Ehdr; \ 64 typedef typename ELFO::Elf_Word Elf_Word; \ 65 typedef typename ELFO::Elf_Hash Elf_Hash; \ 66 typedef typename ELFO::Elf_GnuHash Elf_GnuHash; \ 67 typedef typename ELFO::Elf_Sym_Range Elf_Sym_Range; \ 68 typedef typename ELFO::Elf_Versym Elf_Versym; \ 69 typedef typename ELFO::Elf_Verneed Elf_Verneed; \ 70 typedef typename ELFO::Elf_Vernaux Elf_Vernaux; \ 71 typedef typename ELFO::Elf_Verdef Elf_Verdef; \ 72 typedef typename ELFO::Elf_Verdaux Elf_Verdaux; \ 73 typedef typename ELFO::uintX_t uintX_t; 74 75 namespace { 76 77 template <class ELFT> class DumpStyle; 78 79 /// Represents a contiguous uniform range in the file. We cannot just create a 80 /// range directly because when creating one of these from the .dynamic table 81 /// the size, entity size and virtual address are different entries in arbitrary 82 /// order (DT_REL, DT_RELSZ, DT_RELENT for example). 83 struct DynRegionInfo { 84 DynRegionInfo() : Addr(nullptr), Size(0), EntSize(0) {} 85 DynRegionInfo(const void *A, uint64_t S, uint64_t ES) 86 : Addr(A), Size(S), EntSize(ES) {} 87 /// \brief Address in current address space. 88 const void *Addr; 89 /// \brief Size in bytes of the region. 90 uint64_t Size; 91 /// \brief Size of each entity in the region. 92 uint64_t EntSize; 93 94 template <typename Type> ArrayRef<Type> getAsArrayRef() const { 95 const Type *Start = reinterpret_cast<const Type *>(Addr); 96 if (!Start) 97 return {Start, Start}; 98 if (EntSize != sizeof(Type) || Size % EntSize) 99 reportError("Invalid entity size"); 100 return {Start, Start + (Size / EntSize)}; 101 } 102 }; 103 104 template<typename ELFT> 105 class ELFDumper : public ObjDumper { 106 public: 107 ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer); 108 109 void printFileHeaders() override; 110 void printSections() override; 111 void printRelocations() override; 112 void printDynamicRelocations() override; 113 void printSymbols() override; 114 void printDynamicSymbols() override; 115 void printUnwindInfo() override; 116 117 void printDynamicTable() override; 118 void printNeededLibraries() override; 119 void printProgramHeaders() override; 120 void printHashTable() override; 121 void printGnuHashTable() override; 122 void printLoadName() override; 123 void printVersionInfo() override; 124 void printGroupSections() override; 125 126 void printAttributes() override; 127 void printMipsPLTGOT() override; 128 void printMipsABIFlags() override; 129 void printMipsReginfo() override; 130 void printMipsOptions() override; 131 132 void printAMDGPUCodeObjectMetadata() override; 133 134 void printStackMap() const override; 135 136 void printHashHistogram() override; 137 138 void printNotes() override; 139 140 private: 141 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle; 142 TYPEDEF_ELF_TYPES(ELFT) 143 144 DynRegionInfo checkDRI(DynRegionInfo DRI) { 145 if (DRI.Addr < Obj->base() || 146 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize()) 147 error(llvm::object::object_error::parse_failed); 148 return DRI; 149 } 150 151 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) { 152 return checkDRI({Obj->base() + P->p_offset, P->p_filesz, EntSize}); 153 } 154 155 DynRegionInfo createDRIFrom(const Elf_Shdr *S) { 156 return checkDRI({Obj->base() + S->sh_offset, S->sh_size, S->sh_entsize}); 157 } 158 159 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments); 160 161 void printValue(uint64_t Type, uint64_t Value); 162 163 StringRef getDynamicString(uint64_t Offset) const; 164 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb, 165 bool &IsDefault) const; 166 void LoadVersionMap() const; 167 void LoadVersionNeeds(const Elf_Shdr *ec) const; 168 void LoadVersionDefs(const Elf_Shdr *sec) const; 169 170 const ELFO *Obj; 171 DynRegionInfo DynRelRegion; 172 DynRegionInfo DynRelaRegion; 173 DynRegionInfo DynPLTRelRegion; 174 DynRegionInfo DynSymRegion; 175 DynRegionInfo DynamicTable; 176 StringRef DynamicStringTable; 177 StringRef SOName; 178 const Elf_Hash *HashTable = nullptr; 179 const Elf_GnuHash *GnuHashTable = nullptr; 180 const Elf_Shdr *DotSymtabSec = nullptr; 181 StringRef DynSymtabName; 182 ArrayRef<Elf_Word> ShndxTable; 183 184 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version 185 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r 186 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d 187 188 // Records for each version index the corresponding Verdef or Vernaux entry. 189 // This is filled the first time LoadVersionMap() is called. 190 class VersionMapEntry : public PointerIntPair<const void *, 1> { 191 public: 192 // If the integer is 0, this is an Elf_Verdef*. 193 // If the integer is 1, this is an Elf_Vernaux*. 194 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {} 195 VersionMapEntry(const Elf_Verdef *verdef) 196 : PointerIntPair<const void *, 1>(verdef, 0) {} 197 VersionMapEntry(const Elf_Vernaux *vernaux) 198 : PointerIntPair<const void *, 1>(vernaux, 1) {} 199 bool isNull() const { return getPointer() == nullptr; } 200 bool isVerdef() const { return !isNull() && getInt() == 0; } 201 bool isVernaux() const { return !isNull() && getInt() == 1; } 202 const Elf_Verdef *getVerdef() const { 203 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr; 204 } 205 const Elf_Vernaux *getVernaux() const { 206 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr; 207 } 208 }; 209 mutable SmallVector<VersionMapEntry, 16> VersionMap; 210 211 public: 212 Elf_Dyn_Range dynamic_table() const { 213 return DynamicTable.getAsArrayRef<Elf_Dyn>(); 214 } 215 216 Elf_Sym_Range dynamic_symbols() const { 217 return DynSymRegion.getAsArrayRef<Elf_Sym>(); 218 } 219 220 Elf_Rel_Range dyn_rels() const; 221 Elf_Rela_Range dyn_relas() const; 222 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable, 223 bool IsDynamic) const; 224 225 void printSymbolsHelper(bool IsDynamic) const; 226 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; } 227 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; } 228 StringRef getDynamicStringTable() const { return DynamicStringTable; } 229 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; } 230 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; } 231 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; } 232 const Elf_Hash *getHashTable() const { return HashTable; } 233 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; } 234 }; 235 236 template <class ELFT> 237 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const { 238 StringRef StrTable, SymtabName; 239 size_t Entries = 0; 240 Elf_Sym_Range Syms(nullptr, nullptr); 241 if (IsDynamic) { 242 StrTable = DynamicStringTable; 243 Syms = dynamic_symbols(); 244 SymtabName = DynSymtabName; 245 if (DynSymRegion.Addr) 246 Entries = DynSymRegion.Size / DynSymRegion.EntSize; 247 } else { 248 if (!DotSymtabSec) 249 return; 250 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 251 Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 252 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec)); 253 Entries = DotSymtabSec->getEntityCount(); 254 } 255 if (Syms.begin() == Syms.end()) 256 return; 257 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries); 258 for (const auto &Sym : Syms) 259 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic); 260 } 261 262 template <typename ELFT> class DumpStyle { 263 public: 264 using Elf_Shdr = typename ELFFile<ELFT>::Elf_Shdr; 265 using Elf_Sym = typename ELFFile<ELFT>::Elf_Sym; 266 267 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {} 268 virtual ~DumpStyle() {} 269 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0; 270 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0; 271 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0; 272 virtual void printSections(const ELFFile<ELFT> *Obj) = 0; 273 virtual void printSymbols(const ELFFile<ELFT> *Obj) = 0; 274 virtual void printDynamicSymbols(const ELFFile<ELFT> *Obj) = 0; 275 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0; 276 virtual void printSymtabMessage(const ELFFile<ELFT> *obj, StringRef Name, 277 size_t Offset) { 278 return; 279 } 280 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol, 281 const Elf_Sym *FirstSym, StringRef StrTable, 282 bool IsDynamic) = 0; 283 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj) = 0; 284 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0; 285 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0; 286 const ELFDumper<ELFT> *dumper() const { return Dumper; } 287 private: 288 const ELFDumper<ELFT> *Dumper; 289 }; 290 291 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> { 292 formatted_raw_ostream OS; 293 public: 294 TYPEDEF_ELF_TYPES(ELFT) 295 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 296 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {} 297 void printFileHeaders(const ELFO *Obj) override; 298 void printGroupSections(const ELFFile<ELFT> *Obj) override; 299 void printRelocations(const ELFO *Obj) override; 300 void printSections(const ELFO *Obj) override; 301 void printSymbols(const ELFO *Obj) override; 302 void printDynamicSymbols(const ELFO *Obj) override; 303 void printDynamicRelocations(const ELFO *Obj) override; 304 virtual void printSymtabMessage(const ELFO *Obj, StringRef Name, 305 size_t Offset) override; 306 void printProgramHeaders(const ELFO *Obj) override; 307 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 308 void printNotes(const ELFFile<ELFT> *Obj) override; 309 310 private: 311 struct Field { 312 StringRef Str; 313 unsigned Column; 314 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {} 315 Field(unsigned Col) : Str(""), Column(Col) {} 316 }; 317 318 template <typename T, typename TEnum> 319 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) { 320 for (const auto &EnumItem : EnumValues) 321 if (EnumItem.Value == Value) 322 return EnumItem.AltName; 323 return to_hexString(Value, false); 324 } 325 326 formatted_raw_ostream &printField(struct Field F) { 327 if (F.Column != 0) 328 OS.PadToColumn(F.Column); 329 OS << F.Str; 330 OS.flush(); 331 return OS; 332 } 333 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym, 334 StringRef StrTable, uint32_t Bucket); 335 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 336 const Elf_Rela &R, bool IsRela); 337 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 338 StringRef StrTable, bool IsDynamic) override; 339 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol, 340 const Elf_Sym *FirstSym); 341 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela); 342 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 343 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 344 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 345 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 346 }; 347 348 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> { 349 public: 350 TYPEDEF_ELF_TYPES(ELFT) 351 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 352 : DumpStyle<ELFT>(Dumper), W(W) {} 353 354 void printFileHeaders(const ELFO *Obj) override; 355 void printGroupSections(const ELFFile<ELFT> *Obj) override; 356 void printRelocations(const ELFO *Obj) override; 357 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj); 358 void printSections(const ELFO *Obj) override; 359 void printSymbols(const ELFO *Obj) override; 360 void printDynamicSymbols(const ELFO *Obj) override; 361 void printDynamicRelocations(const ELFO *Obj) override; 362 void printProgramHeaders(const ELFO *Obj) override; 363 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 364 void printNotes(const ELFFile<ELFT> *Obj) override; 365 366 private: 367 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab); 368 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel); 369 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 370 StringRef StrTable, bool IsDynamic) override; 371 ScopedPrinter &W; 372 }; 373 374 } // namespace 375 376 namespace llvm { 377 378 template <class ELFT> 379 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj, 380 ScopedPrinter &Writer, 381 std::unique_ptr<ObjDumper> &Result) { 382 Result.reset(new ELFDumper<ELFT>(Obj, Writer)); 383 return readobj_error::success; 384 } 385 386 std::error_code createELFDumper(const object::ObjectFile *Obj, 387 ScopedPrinter &Writer, 388 std::unique_ptr<ObjDumper> &Result) { 389 // Little-endian 32-bit 390 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) 391 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 392 393 // Big-endian 32-bit 394 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) 395 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 396 397 // Little-endian 64-bit 398 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) 399 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 400 401 // Big-endian 64-bit 402 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) 403 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 404 405 return readobj_error::unsupported_obj_file_format; 406 } 407 408 } // namespace llvm 409 410 // Iterate through the versions needed section, and place each Elf_Vernaux 411 // in the VersionMap according to its index. 412 template <class ELFT> 413 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const { 414 unsigned vn_size = sec->sh_size; // Size of section in bytes 415 unsigned vn_count = sec->sh_info; // Number of Verneed entries 416 const char *sec_start = (const char *)Obj->base() + sec->sh_offset; 417 const char *sec_end = sec_start + vn_size; 418 // The first Verneed entry is at the start of the section. 419 const char *p = sec_start; 420 for (unsigned i = 0; i < vn_count; i++) { 421 if (p + sizeof(Elf_Verneed) > sec_end) 422 report_fatal_error("Section ended unexpectedly while scanning " 423 "version needed records."); 424 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p); 425 if (vn->vn_version != ELF::VER_NEED_CURRENT) 426 report_fatal_error("Unexpected verneed version"); 427 // Iterate through the Vernaux entries 428 const char *paux = p + vn->vn_aux; 429 for (unsigned j = 0; j < vn->vn_cnt; j++) { 430 if (paux + sizeof(Elf_Vernaux) > sec_end) 431 report_fatal_error("Section ended unexpected while scanning auxiliary " 432 "version needed records."); 433 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux); 434 size_t index = vna->vna_other & ELF::VERSYM_VERSION; 435 if (index >= VersionMap.size()) 436 VersionMap.resize(index + 1); 437 VersionMap[index] = VersionMapEntry(vna); 438 paux += vna->vna_next; 439 } 440 p += vn->vn_next; 441 } 442 } 443 444 // Iterate through the version definitions, and place each Elf_Verdef 445 // in the VersionMap according to its index. 446 template <class ELFT> 447 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const { 448 unsigned vd_size = sec->sh_size; // Size of section in bytes 449 unsigned vd_count = sec->sh_info; // Number of Verdef entries 450 const char *sec_start = (const char *)Obj->base() + sec->sh_offset; 451 const char *sec_end = sec_start + vd_size; 452 // The first Verdef entry is at the start of the section. 453 const char *p = sec_start; 454 for (unsigned i = 0; i < vd_count; i++) { 455 if (p + sizeof(Elf_Verdef) > sec_end) 456 report_fatal_error("Section ended unexpectedly while scanning " 457 "version definitions."); 458 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p); 459 if (vd->vd_version != ELF::VER_DEF_CURRENT) 460 report_fatal_error("Unexpected verdef version"); 461 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION; 462 if (index >= VersionMap.size()) 463 VersionMap.resize(index + 1); 464 VersionMap[index] = VersionMapEntry(vd); 465 p += vd->vd_next; 466 } 467 } 468 469 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const { 470 // If there is no dynamic symtab or version table, there is nothing to do. 471 if (!DynSymRegion.Addr || !dot_gnu_version_sec) 472 return; 473 474 // Has the VersionMap already been loaded? 475 if (VersionMap.size() > 0) 476 return; 477 478 // The first two version indexes are reserved. 479 // Index 0 is LOCAL, index 1 is GLOBAL. 480 VersionMap.push_back(VersionMapEntry()); 481 VersionMap.push_back(VersionMapEntry()); 482 483 if (dot_gnu_version_d_sec) 484 LoadVersionDefs(dot_gnu_version_d_sec); 485 486 if (dot_gnu_version_r_sec) 487 LoadVersionNeeds(dot_gnu_version_r_sec); 488 } 489 490 template <typename ELFO, class ELFT> 491 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 492 const typename ELFO::Elf_Shdr *Sec, 493 ScopedPrinter &W) { 494 DictScope SS(W, "Version symbols"); 495 if (!Sec) 496 return; 497 StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 498 W.printNumber("Section Name", Name, Sec->sh_name); 499 W.printHex("Address", Sec->sh_addr); 500 W.printHex("Offset", Sec->sh_offset); 501 W.printNumber("Link", Sec->sh_link); 502 503 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset; 504 StringRef StrTable = Dumper->getDynamicStringTable(); 505 506 // Same number of entries in the dynamic symbol table (DT_SYMTAB). 507 ListScope Syms(W, "Symbols"); 508 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) { 509 DictScope S(W, "Symbol"); 510 std::string FullSymbolName = 511 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */); 512 W.printNumber("Version", *P); 513 W.printString("Name", FullSymbolName); 514 P += sizeof(typename ELFO::Elf_Half); 515 } 516 } 517 518 static const EnumEntry<unsigned> SymVersionFlags[] = { 519 {"Base", "BASE", VER_FLG_BASE}, 520 {"Weak", "WEAK", VER_FLG_WEAK}, 521 {"Info", "INFO", VER_FLG_INFO}}; 522 523 template <typename ELFO, class ELFT> 524 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper, 525 const ELFO *Obj, 526 const typename ELFO::Elf_Shdr *Sec, 527 ScopedPrinter &W) { 528 typedef typename ELFO::Elf_Verdef VerDef; 529 typedef typename ELFO::Elf_Verdaux VerdAux; 530 531 DictScope SD(W, "SHT_GNU_verdef"); 532 if (!Sec) 533 return; 534 535 // The number of entries in the section SHT_GNU_verdef 536 // is determined by DT_VERDEFNUM tag. 537 unsigned VerDefsNum = 0; 538 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) { 539 if (Dyn.d_tag == DT_VERDEFNUM) 540 VerDefsNum = Dyn.d_un.d_val; 541 } 542 const uint8_t *SecStartAddress = 543 (const uint8_t *)Obj->base() + Sec->sh_offset; 544 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size; 545 const uint8_t *P = SecStartAddress; 546 const typename ELFO::Elf_Shdr *StrTab = 547 unwrapOrError(Obj->getSection(Sec->sh_link)); 548 549 while (VerDefsNum--) { 550 if (P + sizeof(VerDef) > SecEndAddress) 551 report_fatal_error("invalid offset in the section"); 552 553 auto *VD = reinterpret_cast<const VerDef *>(P); 554 DictScope Def(W, "Definition"); 555 W.printNumber("Version", VD->vd_version); 556 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags)); 557 W.printNumber("Index", VD->vd_ndx); 558 W.printNumber("Hash", VD->vd_hash); 559 W.printString("Name", 560 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 561 VD->getAux()->vda_name))); 562 if (!VD->vd_cnt) 563 report_fatal_error("at least one definition string must exist"); 564 if (VD->vd_cnt > 2) 565 report_fatal_error("more than one predecessor is not expected"); 566 567 if (VD->vd_cnt == 2) { 568 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next; 569 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux); 570 W.printString("Predecessor", 571 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 572 Aux->vda_name))); 573 } 574 575 P += VD->vd_next; 576 } 577 } 578 579 template <typename ELFO, class ELFT> 580 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper, 581 const ELFO *Obj, 582 const typename ELFO::Elf_Shdr *Sec, 583 ScopedPrinter &W) { 584 typedef typename ELFO::Elf_Verneed VerNeed; 585 typedef typename ELFO::Elf_Vernaux VernAux; 586 587 DictScope SD(W, "SHT_GNU_verneed"); 588 if (!Sec) 589 return; 590 591 unsigned VerNeedNum = 0; 592 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) 593 if (Dyn.d_tag == DT_VERNEEDNUM) 594 VerNeedNum = Dyn.d_un.d_val; 595 596 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset; 597 const typename ELFO::Elf_Shdr *StrTab = 598 unwrapOrError(Obj->getSection(Sec->sh_link)); 599 600 const uint8_t *P = SecData; 601 for (unsigned I = 0; I < VerNeedNum; ++I) { 602 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P); 603 DictScope Entry(W, "Dependency"); 604 W.printNumber("Version", Need->vn_version); 605 W.printNumber("Count", Need->vn_cnt); 606 W.printString("FileName", 607 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 608 Need->vn_file))); 609 610 const uint8_t *PAux = P + Need->vn_aux; 611 for (unsigned J = 0; J < Need->vn_cnt; ++J) { 612 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux); 613 DictScope Entry(W, "Entry"); 614 W.printNumber("Hash", Aux->vna_hash); 615 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags)); 616 W.printNumber("Index", Aux->vna_other); 617 W.printString("Name", 618 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 619 Aux->vna_name))); 620 PAux += Aux->vna_next; 621 } 622 P += Need->vn_next; 623 } 624 } 625 626 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() { 627 // Dump version symbol section. 628 printVersionSymbolSection(this, Obj, dot_gnu_version_sec, W); 629 630 // Dump version definition section. 631 printVersionDefinitionSection(this, Obj, dot_gnu_version_d_sec, W); 632 633 // Dump version dependency section. 634 printVersionDependencySection(this, Obj, dot_gnu_version_r_sec, W); 635 } 636 637 template <typename ELFT> 638 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, 639 const Elf_Sym *symb, 640 bool &IsDefault) const { 641 // This is a dynamic symbol. Look in the GNU symbol version table. 642 if (!dot_gnu_version_sec) { 643 // No version table. 644 IsDefault = false; 645 return StringRef(""); 646 } 647 648 // Determine the position in the symbol table of this entry. 649 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) - 650 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) / 651 sizeof(Elf_Sym); 652 653 // Get the corresponding version index entry 654 const Elf_Versym *vs = unwrapOrError( 655 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index)); 656 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION; 657 658 // Special markers for unversioned symbols. 659 if (version_index == ELF::VER_NDX_LOCAL || 660 version_index == ELF::VER_NDX_GLOBAL) { 661 IsDefault = false; 662 return StringRef(""); 663 } 664 665 // Lookup this symbol in the version table 666 LoadVersionMap(); 667 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull()) 668 reportError("Invalid version entry"); 669 const VersionMapEntry &entry = VersionMap[version_index]; 670 671 // Get the version name string 672 size_t name_offset; 673 if (entry.isVerdef()) { 674 // The first Verdaux entry holds the name. 675 name_offset = entry.getVerdef()->getAux()->vda_name; 676 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN); 677 } else { 678 name_offset = entry.getVernaux()->vna_name; 679 IsDefault = false; 680 } 681 if (name_offset >= StrTab.size()) 682 reportError("Invalid string offset"); 683 return StringRef(StrTab.data() + name_offset); 684 } 685 686 template <typename ELFT> 687 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol, 688 StringRef StrTable, 689 bool IsDynamic) const { 690 StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable)); 691 if (!IsDynamic) 692 return SymbolName; 693 694 std::string FullSymbolName(SymbolName); 695 696 bool IsDefault; 697 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault); 698 FullSymbolName += (IsDefault ? "@@" : "@"); 699 FullSymbolName += Version; 700 return FullSymbolName; 701 } 702 703 template <typename ELFT> 704 static void 705 getSectionNameIndex(const ELFFile<ELFT> &Obj, const typename ELFT::Sym *Symbol, 706 const typename ELFT::Sym *FirstSym, 707 ArrayRef<typename ELFT::Word> ShndxTable, 708 StringRef &SectionName, unsigned &SectionIndex) { 709 SectionIndex = Symbol->st_shndx; 710 if (Symbol->isUndefined()) 711 SectionName = "Undefined"; 712 else if (Symbol->isProcessorSpecific()) 713 SectionName = "Processor Specific"; 714 else if (Symbol->isOSSpecific()) 715 SectionName = "Operating System Specific"; 716 else if (Symbol->isAbsolute()) 717 SectionName = "Absolute"; 718 else if (Symbol->isCommon()) 719 SectionName = "Common"; 720 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX) 721 SectionName = "Reserved"; 722 else { 723 if (SectionIndex == SHN_XINDEX) 724 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 725 Symbol, FirstSym, ShndxTable)); 726 const typename ELFT::Shdr *Sec = 727 unwrapOrError(Obj.getSection(SectionIndex)); 728 SectionName = unwrapOrError(Obj.getSectionName(Sec)); 729 } 730 } 731 732 template <class ELFO> 733 static const typename ELFO::Elf_Shdr * 734 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) { 735 for (const auto &Shdr : unwrapOrError(Obj->sections())) 736 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0) 737 return &Shdr; 738 return nullptr; 739 } 740 741 template <class ELFO> 742 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj, 743 StringRef Name) { 744 for (const auto &Shdr : unwrapOrError(Obj.sections())) { 745 if (Name == unwrapOrError(Obj.getSectionName(&Shdr))) 746 return &Shdr; 747 } 748 return nullptr; 749 } 750 751 static const EnumEntry<unsigned> ElfClass[] = { 752 {"None", "none", ELF::ELFCLASSNONE}, 753 {"32-bit", "ELF32", ELF::ELFCLASS32}, 754 {"64-bit", "ELF64", ELF::ELFCLASS64}, 755 }; 756 757 static const EnumEntry<unsigned> ElfDataEncoding[] = { 758 {"None", "none", ELF::ELFDATANONE}, 759 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB}, 760 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB}, 761 }; 762 763 static const EnumEntry<unsigned> ElfObjectFileType[] = { 764 {"None", "NONE (none)", ELF::ET_NONE}, 765 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL}, 766 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC}, 767 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN}, 768 {"Core", "CORE (Core file)", ELF::ET_CORE}, 769 }; 770 771 static const EnumEntry<unsigned> ElfOSABI[] = { 772 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE}, 773 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX}, 774 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD}, 775 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX}, 776 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD}, 777 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS}, 778 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX}, 779 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX}, 780 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD}, 781 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64}, 782 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO}, 783 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD}, 784 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS}, 785 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK}, 786 {"AROS", "AROS", ELF::ELFOSABI_AROS}, 787 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS}, 788 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI}, 789 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI}, 790 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX}, 791 {"ARM", "ARM", ELF::ELFOSABI_ARM}, 792 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE} 793 }; 794 795 static const EnumEntry<unsigned> ElfMachineType[] = { 796 ENUM_ENT(EM_NONE, "None"), 797 ENUM_ENT(EM_M32, "WE32100"), 798 ENUM_ENT(EM_SPARC, "Sparc"), 799 ENUM_ENT(EM_386, "Intel 80386"), 800 ENUM_ENT(EM_68K, "MC68000"), 801 ENUM_ENT(EM_88K, "MC88000"), 802 ENUM_ENT(EM_IAMCU, "EM_IAMCU"), 803 ENUM_ENT(EM_860, "Intel 80860"), 804 ENUM_ENT(EM_MIPS, "MIPS R3000"), 805 ENUM_ENT(EM_S370, "IBM System/370"), 806 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"), 807 ENUM_ENT(EM_PARISC, "HPPA"), 808 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"), 809 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"), 810 ENUM_ENT(EM_960, "Intel 80960"), 811 ENUM_ENT(EM_PPC, "PowerPC"), 812 ENUM_ENT(EM_PPC64, "PowerPC64"), 813 ENUM_ENT(EM_S390, "IBM S/390"), 814 ENUM_ENT(EM_SPU, "SPU"), 815 ENUM_ENT(EM_V800, "NEC V800 series"), 816 ENUM_ENT(EM_FR20, "Fujistsu FR20"), 817 ENUM_ENT(EM_RH32, "TRW RH-32"), 818 ENUM_ENT(EM_RCE, "Motorola RCE"), 819 ENUM_ENT(EM_ARM, "ARM"), 820 ENUM_ENT(EM_ALPHA, "EM_ALPHA"), 821 ENUM_ENT(EM_SH, "Hitachi SH"), 822 ENUM_ENT(EM_SPARCV9, "Sparc v9"), 823 ENUM_ENT(EM_TRICORE, "Siemens Tricore"), 824 ENUM_ENT(EM_ARC, "ARC"), 825 ENUM_ENT(EM_H8_300, "Hitachi H8/300"), 826 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"), 827 ENUM_ENT(EM_H8S, "Hitachi H8S"), 828 ENUM_ENT(EM_H8_500, "Hitachi H8/500"), 829 ENUM_ENT(EM_IA_64, "Intel IA-64"), 830 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"), 831 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"), 832 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"), 833 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"), 834 ENUM_ENT(EM_PCP, "Siemens PCP"), 835 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"), 836 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"), 837 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"), 838 ENUM_ENT(EM_ME16, "Toyota ME16 processor"), 839 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"), 840 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"), 841 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"), 842 ENUM_ENT(EM_PDSP, "Sony DSP processor"), 843 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"), 844 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"), 845 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"), 846 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"), 847 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"), 848 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"), 849 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"), 850 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"), 851 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"), 852 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"), 853 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"), 854 ENUM_ENT(EM_VAX, "Digital VAX"), 855 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"), 856 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"), 857 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"), 858 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"), 859 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"), 860 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"), 861 ENUM_ENT(EM_PRISM, "Vitesse Prism"), 862 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"), 863 ENUM_ENT(EM_FR30, "Fujitsu FR30"), 864 ENUM_ENT(EM_D10V, "Mitsubishi D10V"), 865 ENUM_ENT(EM_D30V, "Mitsubishi D30V"), 866 ENUM_ENT(EM_V850, "NEC v850"), 867 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"), 868 ENUM_ENT(EM_MN10300, "Matsushita MN10300"), 869 ENUM_ENT(EM_MN10200, "Matsushita MN10200"), 870 ENUM_ENT(EM_PJ, "picoJava"), 871 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"), 872 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"), 873 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"), 874 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"), 875 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"), 876 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"), 877 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"), 878 ENUM_ENT(EM_SNP1K, "EM_SNP1K"), 879 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"), 880 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"), 881 ENUM_ENT(EM_MAX, "MAX Processor"), 882 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"), 883 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"), 884 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"), 885 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"), 886 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"), 887 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"), 888 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"), 889 ENUM_ENT(EM_UNICORE, "Unicore"), 890 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"), 891 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"), 892 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"), 893 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"), 894 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"), 895 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"), 896 ENUM_ENT(EM_M16C, "Renesas M16C"), 897 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"), 898 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"), 899 ENUM_ENT(EM_M32C, "Renesas M32C"), 900 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"), 901 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"), 902 ENUM_ENT(EM_SHARC, "EM_SHARC"), 903 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"), 904 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"), 905 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"), 906 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"), 907 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"), 908 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"), 909 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"), 910 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"), 911 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"), 912 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"), 913 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"), 914 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"), 915 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"), 916 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"), 917 ENUM_ENT(EM_8051, "Intel 8051 and variants"), 918 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"), 919 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"), 920 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"), 921 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"), 922 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"), 923 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"), 924 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"), 925 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"), 926 ENUM_ENT(EM_RX, "Renesas RX"), 927 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"), 928 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"), 929 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"), 930 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"), 931 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"), 932 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"), 933 ENUM_ENT(EM_L10M, "EM_L10M"), 934 ENUM_ENT(EM_K10M, "EM_K10M"), 935 ENUM_ENT(EM_AARCH64, "AArch64"), 936 ENUM_ENT(EM_AVR32, "Atmel AVR 8-bit microcontroller"), 937 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"), 938 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"), 939 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"), 940 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"), 941 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"), 942 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"), 943 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"), 944 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"), 945 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"), 946 ENUM_ENT(EM_OPEN8, "EM_OPEN8"), 947 ENUM_ENT(EM_RL78, "Renesas RL78"), 948 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"), 949 ENUM_ENT(EM_78KOR, "EM_78KOR"), 950 ENUM_ENT(EM_56800EX, "EM_56800EX"), 951 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"), 952 ENUM_ENT(EM_RISCV, "RISC-V"), 953 ENUM_ENT(EM_WEBASSEMBLY, "EM_WEBASSEMBLY"), 954 ENUM_ENT(EM_LANAI, "EM_LANAI"), 955 ENUM_ENT(EM_BPF, "EM_BPF"), 956 }; 957 958 static const EnumEntry<unsigned> ElfSymbolBindings[] = { 959 {"Local", "LOCAL", ELF::STB_LOCAL}, 960 {"Global", "GLOBAL", ELF::STB_GLOBAL}, 961 {"Weak", "WEAK", ELF::STB_WEAK}, 962 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}}; 963 964 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = { 965 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT}, 966 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL}, 967 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN}, 968 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}}; 969 970 static const EnumEntry<unsigned> ElfSymbolTypes[] = { 971 {"None", "NOTYPE", ELF::STT_NOTYPE}, 972 {"Object", "OBJECT", ELF::STT_OBJECT}, 973 {"Function", "FUNC", ELF::STT_FUNC}, 974 {"Section", "SECTION", ELF::STT_SECTION}, 975 {"File", "FILE", ELF::STT_FILE}, 976 {"Common", "COMMON", ELF::STT_COMMON}, 977 {"TLS", "TLS", ELF::STT_TLS}, 978 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}}; 979 980 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = { 981 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL }, 982 { "AMDGPU_HSA_INDIRECT_FUNCTION", ELF::STT_AMDGPU_HSA_INDIRECT_FUNCTION }, 983 { "AMDGPU_HSA_METADATA", ELF::STT_AMDGPU_HSA_METADATA } 984 }; 985 986 static const char *getElfSectionType(unsigned Arch, unsigned Type) { 987 switch (Arch) { 988 case ELF::EM_ARM: 989 switch (Type) { 990 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_EXIDX); 991 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_PREEMPTMAP); 992 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_ATTRIBUTES); 993 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_DEBUGOVERLAY); 994 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_OVERLAYSECTION); 995 } 996 case ELF::EM_HEXAGON: 997 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED); } 998 case ELF::EM_X86_64: 999 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND); } 1000 case ELF::EM_MIPS: 1001 case ELF::EM_MIPS_RS3_LE: 1002 switch (Type) { 1003 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO); 1004 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS); 1005 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_ABIFLAGS); 1006 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_DWARF); 1007 } 1008 } 1009 1010 switch (Type) { 1011 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NULL ); 1012 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PROGBITS ); 1013 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB ); 1014 LLVM_READOBJ_ENUM_CASE(ELF, SHT_STRTAB ); 1015 LLVM_READOBJ_ENUM_CASE(ELF, SHT_RELA ); 1016 LLVM_READOBJ_ENUM_CASE(ELF, SHT_HASH ); 1017 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNAMIC ); 1018 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOTE ); 1019 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOBITS ); 1020 LLVM_READOBJ_ENUM_CASE(ELF, SHT_REL ); 1021 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SHLIB ); 1022 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNSYM ); 1023 LLVM_READOBJ_ENUM_CASE(ELF, SHT_INIT_ARRAY ); 1024 LLVM_READOBJ_ENUM_CASE(ELF, SHT_FINI_ARRAY ); 1025 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PREINIT_ARRAY ); 1026 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GROUP ); 1027 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB_SHNDX ); 1028 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES ); 1029 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_HASH ); 1030 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verdef ); 1031 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verneed ); 1032 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_versym ); 1033 default: return ""; 1034 } 1035 } 1036 1037 static const char *getGroupType(uint32_t Flag) { 1038 if (Flag & ELF::GRP_COMDAT) 1039 return "COMDAT"; 1040 else 1041 return "(unknown)"; 1042 } 1043 1044 static const EnumEntry<unsigned> ElfSectionFlags[] = { 1045 ENUM_ENT(SHF_WRITE, "W"), 1046 ENUM_ENT(SHF_ALLOC, "A"), 1047 ENUM_ENT(SHF_EXCLUDE, "E"), 1048 ENUM_ENT(SHF_EXECINSTR, "X"), 1049 ENUM_ENT(SHF_MERGE, "M"), 1050 ENUM_ENT(SHF_STRINGS, "S"), 1051 ENUM_ENT(SHF_INFO_LINK, "I"), 1052 ENUM_ENT(SHF_LINK_ORDER, "L"), 1053 ENUM_ENT(SHF_OS_NONCONFORMING, "o"), 1054 ENUM_ENT(SHF_GROUP, "G"), 1055 ENUM_ENT(SHF_TLS, "T"), 1056 ENUM_ENT(SHF_MASKOS, "o"), 1057 ENUM_ENT(SHF_MASKPROC, "p"), 1058 ENUM_ENT_1(SHF_COMPRESSED), 1059 }; 1060 1061 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = { 1062 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION), 1063 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION) 1064 }; 1065 1066 static const EnumEntry<unsigned> ElfAMDGPUSectionFlags[] = { 1067 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_GLOBAL), 1068 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_READONLY), 1069 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_CODE), 1070 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_AGENT) 1071 }; 1072 1073 static const EnumEntry<unsigned> ElfARMSectionFlags[] = { 1074 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE) 1075 }; 1076 1077 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = { 1078 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL) 1079 }; 1080 1081 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = { 1082 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES), 1083 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ), 1084 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ), 1085 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP), 1086 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ), 1087 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ), 1088 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ), 1089 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING ) 1090 }; 1091 1092 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = { 1093 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE) 1094 }; 1095 1096 static std::string getGNUFlags(uint64_t Flags) { 1097 std::string Str; 1098 for (auto Entry : ElfSectionFlags) { 1099 uint64_t Flag = Entry.Value & Flags; 1100 Flags &= ~Entry.Value; 1101 switch (Flag) { 1102 case ELF::SHF_WRITE: 1103 case ELF::SHF_ALLOC: 1104 case ELF::SHF_EXECINSTR: 1105 case ELF::SHF_MERGE: 1106 case ELF::SHF_STRINGS: 1107 case ELF::SHF_INFO_LINK: 1108 case ELF::SHF_LINK_ORDER: 1109 case ELF::SHF_OS_NONCONFORMING: 1110 case ELF::SHF_GROUP: 1111 case ELF::SHF_TLS: 1112 case ELF::SHF_EXCLUDE: 1113 Str += Entry.AltName; 1114 break; 1115 default: 1116 if (Flag & ELF::SHF_MASKOS) 1117 Str += "o"; 1118 else if (Flag & ELF::SHF_MASKPROC) 1119 Str += "p"; 1120 else if (Flag) 1121 Str += "x"; 1122 } 1123 } 1124 return Str; 1125 } 1126 1127 static const char *getElfSegmentType(unsigned Arch, unsigned Type) { 1128 // Check potentially overlapped processor-specific 1129 // program header type. 1130 switch (Arch) { 1131 case ELF::EM_AMDGPU: 1132 switch (Type) { 1133 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM); 1134 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT); 1135 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT); 1136 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT); 1137 } 1138 case ELF::EM_ARM: 1139 switch (Type) { 1140 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX); 1141 } 1142 case ELF::EM_MIPS: 1143 case ELF::EM_MIPS_RS3_LE: 1144 switch (Type) { 1145 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO); 1146 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC); 1147 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS); 1148 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS); 1149 } 1150 } 1151 1152 switch (Type) { 1153 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL ); 1154 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD ); 1155 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC); 1156 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP ); 1157 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE ); 1158 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB ); 1159 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR ); 1160 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS ); 1161 1162 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME); 1163 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND); 1164 1165 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK); 1166 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO); 1167 1168 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE); 1169 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED); 1170 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA); 1171 1172 default: return ""; 1173 } 1174 } 1175 1176 static std::string getElfPtType(unsigned Arch, unsigned Type) { 1177 switch (Type) { 1178 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL) 1179 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD) 1180 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC) 1181 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP) 1182 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE) 1183 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB) 1184 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR) 1185 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS) 1186 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME) 1187 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND) 1188 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK) 1189 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO) 1190 default: 1191 // All machine specific PT_* types 1192 switch (Arch) { 1193 case ELF::EM_AMDGPU: 1194 switch (Type) { 1195 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM); 1196 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT); 1197 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT); 1198 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT); 1199 } 1200 return ""; 1201 case ELF::EM_ARM: 1202 if (Type == ELF::PT_ARM_EXIDX) 1203 return "EXIDX"; 1204 return ""; 1205 case ELF::EM_MIPS: 1206 case ELF::EM_MIPS_RS3_LE: 1207 switch (Type) { 1208 case PT_MIPS_REGINFO: 1209 return "REGINFO"; 1210 case PT_MIPS_RTPROC: 1211 return "RTPROC"; 1212 case PT_MIPS_OPTIONS: 1213 return "OPTIONS"; 1214 case PT_MIPS_ABIFLAGS: 1215 return "ABIFLAGS"; 1216 } 1217 return ""; 1218 } 1219 } 1220 return std::string("<unknown>: ") + to_string(format_hex(Type, 1)); 1221 } 1222 1223 static const EnumEntry<unsigned> ElfSegmentFlags[] = { 1224 LLVM_READOBJ_ENUM_ENT(ELF, PF_X), 1225 LLVM_READOBJ_ENUM_ENT(ELF, PF_W), 1226 LLVM_READOBJ_ENUM_ENT(ELF, PF_R) 1227 }; 1228 1229 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = { 1230 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER), 1231 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC), 1232 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC), 1233 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2), 1234 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE), 1235 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64), 1236 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008), 1237 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32), 1238 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64), 1239 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32), 1240 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64), 1241 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900), 1242 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010), 1243 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100), 1244 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650), 1245 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120), 1246 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111), 1247 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1), 1248 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON), 1249 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR), 1250 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2), 1251 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3), 1252 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400), 1253 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900), 1254 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500), 1255 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000), 1256 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E), 1257 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F), 1258 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A), 1259 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS), 1260 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16), 1261 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX), 1262 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1), 1263 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2), 1264 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3), 1265 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4), 1266 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5), 1267 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32), 1268 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64), 1269 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2), 1270 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2), 1271 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6), 1272 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6) 1273 }; 1274 1275 static const EnumEntry<unsigned> ElfSymOtherFlags[] = { 1276 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL), 1277 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN), 1278 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED) 1279 }; 1280 1281 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = { 1282 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1283 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1284 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC), 1285 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS) 1286 }; 1287 1288 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = { 1289 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1290 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1291 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16) 1292 }; 1293 1294 static const char *getElfMipsOptionsOdkType(unsigned Odk) { 1295 switch (Odk) { 1296 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL); 1297 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO); 1298 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS); 1299 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD); 1300 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH); 1301 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL); 1302 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS); 1303 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND); 1304 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR); 1305 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP); 1306 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT); 1307 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE); 1308 default: 1309 return "Unknown"; 1310 } 1311 } 1312 1313 template <typename ELFT> 1314 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer) 1315 : ObjDumper(Writer), Obj(Obj) { 1316 1317 SmallVector<const Elf_Phdr *, 4> LoadSegments; 1318 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 1319 if (Phdr.p_type == ELF::PT_DYNAMIC) { 1320 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn)); 1321 continue; 1322 } 1323 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0) 1324 continue; 1325 LoadSegments.push_back(&Phdr); 1326 } 1327 1328 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1329 switch (Sec.sh_type) { 1330 case ELF::SHT_SYMTAB: 1331 if (DotSymtabSec != nullptr) 1332 reportError("Multilpe SHT_SYMTAB"); 1333 DotSymtabSec = &Sec; 1334 break; 1335 case ELF::SHT_DYNSYM: 1336 if (DynSymRegion.Size) 1337 reportError("Multilpe SHT_DYNSYM"); 1338 DynSymRegion = createDRIFrom(&Sec); 1339 // This is only used (if Elf_Shdr present)for naming section in GNU style 1340 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec)); 1341 break; 1342 case ELF::SHT_SYMTAB_SHNDX: 1343 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec)); 1344 break; 1345 case ELF::SHT_GNU_versym: 1346 if (dot_gnu_version_sec != nullptr) 1347 reportError("Multiple SHT_GNU_versym"); 1348 dot_gnu_version_sec = &Sec; 1349 break; 1350 case ELF::SHT_GNU_verdef: 1351 if (dot_gnu_version_d_sec != nullptr) 1352 reportError("Multiple SHT_GNU_verdef"); 1353 dot_gnu_version_d_sec = &Sec; 1354 break; 1355 case ELF::SHT_GNU_verneed: 1356 if (dot_gnu_version_r_sec != nullptr) 1357 reportError("Multilpe SHT_GNU_verneed"); 1358 dot_gnu_version_r_sec = &Sec; 1359 break; 1360 } 1361 } 1362 1363 parseDynamicTable(LoadSegments); 1364 1365 if (opts::Output == opts::GNU) 1366 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this)); 1367 else 1368 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this)); 1369 } 1370 1371 template <typename ELFT> 1372 void ELFDumper<ELFT>::parseDynamicTable( 1373 ArrayRef<const Elf_Phdr *> LoadSegments) { 1374 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * { 1375 const Elf_Phdr *const *I = std::upper_bound( 1376 LoadSegments.begin(), LoadSegments.end(), VAddr, compareAddr<ELFT>); 1377 if (I == LoadSegments.begin()) 1378 report_fatal_error("Virtual address is not in any segment"); 1379 --I; 1380 const Elf_Phdr &Phdr = **I; 1381 uint64_t Delta = VAddr - Phdr.p_vaddr; 1382 if (Delta >= Phdr.p_filesz) 1383 report_fatal_error("Virtual address is not in any segment"); 1384 return Obj->base() + Phdr.p_offset + Delta; 1385 }; 1386 1387 uint64_t SONameOffset = 0; 1388 const char *StringTableBegin = nullptr; 1389 uint64_t StringTableSize = 0; 1390 for (const Elf_Dyn &Dyn : dynamic_table()) { 1391 switch (Dyn.d_tag) { 1392 case ELF::DT_HASH: 1393 HashTable = 1394 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr())); 1395 break; 1396 case ELF::DT_GNU_HASH: 1397 GnuHashTable = 1398 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr())); 1399 break; 1400 case ELF::DT_STRTAB: 1401 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr()); 1402 break; 1403 case ELF::DT_STRSZ: 1404 StringTableSize = Dyn.getVal(); 1405 break; 1406 case ELF::DT_SYMTAB: 1407 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr()); 1408 DynSymRegion.EntSize = sizeof(Elf_Sym); 1409 break; 1410 case ELF::DT_RELA: 1411 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr()); 1412 break; 1413 case ELF::DT_RELASZ: 1414 DynRelaRegion.Size = Dyn.getVal(); 1415 break; 1416 case ELF::DT_RELAENT: 1417 DynRelaRegion.EntSize = Dyn.getVal(); 1418 break; 1419 case ELF::DT_SONAME: 1420 SONameOffset = Dyn.getVal(); 1421 break; 1422 case ELF::DT_REL: 1423 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1424 break; 1425 case ELF::DT_RELSZ: 1426 DynRelRegion.Size = Dyn.getVal(); 1427 break; 1428 case ELF::DT_RELENT: 1429 DynRelRegion.EntSize = Dyn.getVal(); 1430 break; 1431 case ELF::DT_PLTREL: 1432 if (Dyn.getVal() == DT_REL) 1433 DynPLTRelRegion.EntSize = sizeof(Elf_Rel); 1434 else if (Dyn.getVal() == DT_RELA) 1435 DynPLTRelRegion.EntSize = sizeof(Elf_Rela); 1436 else 1437 reportError(Twine("unknown DT_PLTREL value of ") + 1438 Twine((uint64_t)Dyn.getVal())); 1439 break; 1440 case ELF::DT_JMPREL: 1441 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1442 break; 1443 case ELF::DT_PLTRELSZ: 1444 DynPLTRelRegion.Size = Dyn.getVal(); 1445 break; 1446 } 1447 } 1448 if (StringTableBegin) 1449 DynamicStringTable = StringRef(StringTableBegin, StringTableSize); 1450 if (SONameOffset) 1451 SOName = getDynamicString(SONameOffset); 1452 } 1453 1454 template <typename ELFT> 1455 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const { 1456 return DynRelRegion.getAsArrayRef<Elf_Rel>(); 1457 } 1458 1459 template <typename ELFT> 1460 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const { 1461 return DynRelaRegion.getAsArrayRef<Elf_Rela>(); 1462 } 1463 1464 template<class ELFT> 1465 void ELFDumper<ELFT>::printFileHeaders() { 1466 ELFDumperStyle->printFileHeaders(Obj); 1467 } 1468 1469 template<class ELFT> 1470 void ELFDumper<ELFT>::printSections() { 1471 ELFDumperStyle->printSections(Obj); 1472 } 1473 1474 template<class ELFT> 1475 void ELFDumper<ELFT>::printRelocations() { 1476 ELFDumperStyle->printRelocations(Obj); 1477 } 1478 1479 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() { 1480 ELFDumperStyle->printProgramHeaders(Obj); 1481 } 1482 1483 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() { 1484 ELFDumperStyle->printDynamicRelocations(Obj); 1485 } 1486 1487 template<class ELFT> 1488 void ELFDumper<ELFT>::printSymbols() { 1489 ELFDumperStyle->printSymbols(Obj); 1490 } 1491 1492 template<class ELFT> 1493 void ELFDumper<ELFT>::printDynamicSymbols() { 1494 ELFDumperStyle->printDynamicSymbols(Obj); 1495 } 1496 1497 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() { 1498 ELFDumperStyle->printHashHistogram(Obj); 1499 } 1500 1501 template <class ELFT> void ELFDumper<ELFT>::printNotes() { 1502 ELFDumperStyle->printNotes(Obj); 1503 } 1504 1505 #define LLVM_READOBJ_TYPE_CASE(name) \ 1506 case DT_##name: return #name 1507 1508 static const char *getTypeString(unsigned Arch, uint64_t Type) { 1509 switch (Arch) { 1510 case EM_HEXAGON: 1511 switch (Type) { 1512 LLVM_READOBJ_TYPE_CASE(HEXAGON_SYMSZ); 1513 LLVM_READOBJ_TYPE_CASE(HEXAGON_VER); 1514 LLVM_READOBJ_TYPE_CASE(HEXAGON_PLT); 1515 } 1516 case EM_MIPS: 1517 switch (Type) { 1518 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL); 1519 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION); 1520 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS); 1521 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS); 1522 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO); 1523 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO); 1524 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO); 1525 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM); 1526 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP); 1527 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT); 1528 LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS); 1529 } 1530 } 1531 switch (Type) { 1532 LLVM_READOBJ_TYPE_CASE(BIND_NOW); 1533 LLVM_READOBJ_TYPE_CASE(DEBUG); 1534 LLVM_READOBJ_TYPE_CASE(FINI); 1535 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY); 1536 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ); 1537 LLVM_READOBJ_TYPE_CASE(FLAGS); 1538 LLVM_READOBJ_TYPE_CASE(FLAGS_1); 1539 LLVM_READOBJ_TYPE_CASE(HASH); 1540 LLVM_READOBJ_TYPE_CASE(INIT); 1541 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY); 1542 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ); 1543 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY); 1544 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ); 1545 LLVM_READOBJ_TYPE_CASE(JMPREL); 1546 LLVM_READOBJ_TYPE_CASE(NEEDED); 1547 LLVM_READOBJ_TYPE_CASE(NULL); 1548 LLVM_READOBJ_TYPE_CASE(PLTGOT); 1549 LLVM_READOBJ_TYPE_CASE(PLTREL); 1550 LLVM_READOBJ_TYPE_CASE(PLTRELSZ); 1551 LLVM_READOBJ_TYPE_CASE(REL); 1552 LLVM_READOBJ_TYPE_CASE(RELA); 1553 LLVM_READOBJ_TYPE_CASE(RELENT); 1554 LLVM_READOBJ_TYPE_CASE(RELSZ); 1555 LLVM_READOBJ_TYPE_CASE(RELAENT); 1556 LLVM_READOBJ_TYPE_CASE(RELASZ); 1557 LLVM_READOBJ_TYPE_CASE(RPATH); 1558 LLVM_READOBJ_TYPE_CASE(RUNPATH); 1559 LLVM_READOBJ_TYPE_CASE(SONAME); 1560 LLVM_READOBJ_TYPE_CASE(STRSZ); 1561 LLVM_READOBJ_TYPE_CASE(STRTAB); 1562 LLVM_READOBJ_TYPE_CASE(SYMBOLIC); 1563 LLVM_READOBJ_TYPE_CASE(SYMENT); 1564 LLVM_READOBJ_TYPE_CASE(SYMTAB); 1565 LLVM_READOBJ_TYPE_CASE(TEXTREL); 1566 LLVM_READOBJ_TYPE_CASE(VERDEF); 1567 LLVM_READOBJ_TYPE_CASE(VERDEFNUM); 1568 LLVM_READOBJ_TYPE_CASE(VERNEED); 1569 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM); 1570 LLVM_READOBJ_TYPE_CASE(VERSYM); 1571 LLVM_READOBJ_TYPE_CASE(RELACOUNT); 1572 LLVM_READOBJ_TYPE_CASE(RELCOUNT); 1573 LLVM_READOBJ_TYPE_CASE(GNU_HASH); 1574 LLVM_READOBJ_TYPE_CASE(TLSDESC_PLT); 1575 LLVM_READOBJ_TYPE_CASE(TLSDESC_GOT); 1576 LLVM_READOBJ_TYPE_CASE(AUXILIARY); 1577 default: return "unknown"; 1578 } 1579 } 1580 1581 #undef LLVM_READOBJ_TYPE_CASE 1582 1583 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \ 1584 { #enum, prefix##_##enum } 1585 1586 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = { 1587 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN), 1588 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC), 1589 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL), 1590 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW), 1591 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS) 1592 }; 1593 1594 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = { 1595 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW), 1596 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL), 1597 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP), 1598 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE), 1599 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR), 1600 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST), 1601 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN), 1602 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN), 1603 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT), 1604 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS), 1605 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE), 1606 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB), 1607 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP), 1608 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT), 1609 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE), 1610 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE), 1611 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT), 1612 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF), 1613 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS), 1614 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR), 1615 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED), 1616 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC), 1617 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE), 1618 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT), 1619 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON) 1620 }; 1621 1622 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = { 1623 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE), 1624 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART), 1625 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT), 1626 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT), 1627 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE), 1628 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY), 1629 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT), 1630 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS), 1631 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT), 1632 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE), 1633 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD), 1634 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART), 1635 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED), 1636 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD), 1637 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF), 1638 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE) 1639 }; 1640 1641 #undef LLVM_READOBJ_DT_FLAG_ENT 1642 1643 template <typename T, typename TFlag> 1644 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) { 1645 typedef EnumEntry<TFlag> FlagEntry; 1646 typedef SmallVector<FlagEntry, 10> FlagVector; 1647 FlagVector SetFlags; 1648 1649 for (const auto &Flag : Flags) { 1650 if (Flag.Value == 0) 1651 continue; 1652 1653 if ((Value & Flag.Value) == Flag.Value) 1654 SetFlags.push_back(Flag); 1655 } 1656 1657 for (const auto &Flag : SetFlags) { 1658 OS << Flag.Name << " "; 1659 } 1660 } 1661 1662 template <class ELFT> 1663 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const { 1664 if (Value >= DynamicStringTable.size()) 1665 reportError("Invalid dynamic string table reference"); 1666 return StringRef(DynamicStringTable.data() + Value); 1667 } 1668 1669 template <class ELFT> 1670 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { 1671 raw_ostream &OS = W.getOStream(); 1672 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64; 1673 switch (Type) { 1674 case DT_PLTREL: 1675 if (Value == DT_REL) { 1676 OS << "REL"; 1677 break; 1678 } else if (Value == DT_RELA) { 1679 OS << "RELA"; 1680 break; 1681 } 1682 LLVM_FALLTHROUGH; 1683 case DT_PLTGOT: 1684 case DT_HASH: 1685 case DT_STRTAB: 1686 case DT_SYMTAB: 1687 case DT_RELA: 1688 case DT_INIT: 1689 case DT_FINI: 1690 case DT_REL: 1691 case DT_JMPREL: 1692 case DT_INIT_ARRAY: 1693 case DT_FINI_ARRAY: 1694 case DT_PREINIT_ARRAY: 1695 case DT_DEBUG: 1696 case DT_VERDEF: 1697 case DT_VERNEED: 1698 case DT_VERSYM: 1699 case DT_GNU_HASH: 1700 case DT_NULL: 1701 case DT_MIPS_BASE_ADDRESS: 1702 case DT_MIPS_GOTSYM: 1703 case DT_MIPS_RLD_MAP: 1704 case DT_MIPS_RLD_MAP_REL: 1705 case DT_MIPS_PLTGOT: 1706 case DT_MIPS_OPTIONS: 1707 OS << format(ConvChar, Value); 1708 break; 1709 case DT_RELACOUNT: 1710 case DT_RELCOUNT: 1711 case DT_VERDEFNUM: 1712 case DT_VERNEEDNUM: 1713 case DT_MIPS_RLD_VERSION: 1714 case DT_MIPS_LOCAL_GOTNO: 1715 case DT_MIPS_SYMTABNO: 1716 case DT_MIPS_UNREFEXTNO: 1717 OS << Value; 1718 break; 1719 case DT_PLTRELSZ: 1720 case DT_RELASZ: 1721 case DT_RELAENT: 1722 case DT_STRSZ: 1723 case DT_SYMENT: 1724 case DT_RELSZ: 1725 case DT_RELENT: 1726 case DT_INIT_ARRAYSZ: 1727 case DT_FINI_ARRAYSZ: 1728 case DT_PREINIT_ARRAYSZ: 1729 OS << Value << " (bytes)"; 1730 break; 1731 case DT_NEEDED: 1732 OS << "SharedLibrary (" << getDynamicString(Value) << ")"; 1733 break; 1734 case DT_SONAME: 1735 OS << "LibrarySoname (" << getDynamicString(Value) << ")"; 1736 break; 1737 case DT_AUXILIARY: 1738 OS << "Auxiliary library: [" << getDynamicString(Value) << "]"; 1739 break; 1740 case DT_RPATH: 1741 case DT_RUNPATH: 1742 OS << getDynamicString(Value); 1743 break; 1744 case DT_MIPS_FLAGS: 1745 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS); 1746 break; 1747 case DT_FLAGS: 1748 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS); 1749 break; 1750 case DT_FLAGS_1: 1751 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS); 1752 break; 1753 default: 1754 OS << format(ConvChar, Value); 1755 break; 1756 } 1757 } 1758 1759 template<class ELFT> 1760 void ELFDumper<ELFT>::printUnwindInfo() { 1761 W.startLine() << "UnwindInfo not implemented.\n"; 1762 } 1763 1764 namespace { 1765 template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() { 1766 const unsigned Machine = Obj->getHeader()->e_machine; 1767 if (Machine == EM_ARM) { 1768 ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx( 1769 W, Obj, DotSymtabSec); 1770 return Ctx.PrintUnwindInformation(); 1771 } 1772 W.startLine() << "UnwindInfo not implemented.\n"; 1773 } 1774 } 1775 1776 template<class ELFT> 1777 void ELFDumper<ELFT>::printDynamicTable() { 1778 auto I = dynamic_table().begin(); 1779 auto E = dynamic_table().end(); 1780 1781 if (I == E) 1782 return; 1783 1784 --E; 1785 while (I != E && E->getTag() == ELF::DT_NULL) 1786 --E; 1787 if (E->getTag() != ELF::DT_NULL) 1788 ++E; 1789 ++E; 1790 1791 ptrdiff_t Total = std::distance(I, E); 1792 if (Total == 0) 1793 return; 1794 1795 raw_ostream &OS = W.getOStream(); 1796 W.startLine() << "DynamicSection [ (" << Total << " entries)\n"; 1797 1798 bool Is64 = ELFT::Is64Bits; 1799 1800 W.startLine() 1801 << " Tag" << (Is64 ? " " : " ") << "Type" 1802 << " " << "Name/Value\n"; 1803 while (I != E) { 1804 const Elf_Dyn &Entry = *I; 1805 uintX_t Tag = Entry.getTag(); 1806 ++I; 1807 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " " 1808 << format("%-21s", getTypeString(Obj->getHeader()->e_machine, Tag)); 1809 printValue(Tag, Entry.getVal()); 1810 OS << "\n"; 1811 } 1812 1813 W.startLine() << "]\n"; 1814 } 1815 1816 template<class ELFT> 1817 void ELFDumper<ELFT>::printNeededLibraries() { 1818 ListScope D(W, "NeededLibraries"); 1819 1820 typedef std::vector<StringRef> LibsTy; 1821 LibsTy Libs; 1822 1823 for (const auto &Entry : dynamic_table()) 1824 if (Entry.d_tag == ELF::DT_NEEDED) 1825 Libs.push_back(getDynamicString(Entry.d_un.d_val)); 1826 1827 std::stable_sort(Libs.begin(), Libs.end()); 1828 1829 for (const auto &L : Libs) { 1830 outs() << " " << L << "\n"; 1831 } 1832 } 1833 1834 1835 template <typename ELFT> 1836 void ELFDumper<ELFT>::printHashTable() { 1837 DictScope D(W, "HashTable"); 1838 if (!HashTable) 1839 return; 1840 W.printNumber("Num Buckets", HashTable->nbucket); 1841 W.printNumber("Num Chains", HashTable->nchain); 1842 W.printList("Buckets", HashTable->buckets()); 1843 W.printList("Chains", HashTable->chains()); 1844 } 1845 1846 template <typename ELFT> 1847 void ELFDumper<ELFT>::printGnuHashTable() { 1848 DictScope D(W, "GnuHashTable"); 1849 if (!GnuHashTable) 1850 return; 1851 W.printNumber("Num Buckets", GnuHashTable->nbuckets); 1852 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx); 1853 W.printNumber("Num Mask Words", GnuHashTable->maskwords); 1854 W.printNumber("Shift Count", GnuHashTable->shift2); 1855 W.printHexList("Bloom Filter", GnuHashTable->filter()); 1856 W.printList("Buckets", GnuHashTable->buckets()); 1857 Elf_Sym_Range Syms = dynamic_symbols(); 1858 unsigned NumSyms = std::distance(Syms.begin(), Syms.end()); 1859 if (!NumSyms) 1860 reportError("No dynamic symbol section"); 1861 W.printHexList("Values", GnuHashTable->values(NumSyms)); 1862 } 1863 1864 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() { 1865 outs() << "LoadName: " << SOName << '\n'; 1866 } 1867 1868 template <class ELFT> 1869 void ELFDumper<ELFT>::printAttributes() { 1870 W.startLine() << "Attributes not implemented.\n"; 1871 } 1872 1873 namespace { 1874 template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() { 1875 if (Obj->getHeader()->e_machine != EM_ARM) { 1876 W.startLine() << "Attributes not implemented.\n"; 1877 return; 1878 } 1879 1880 DictScope BA(W, "BuildAttributes"); 1881 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1882 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES) 1883 continue; 1884 1885 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec)); 1886 if (Contents[0] != ARMBuildAttrs::Format_Version) { 1887 errs() << "unrecognised FormatVersion: 0x" << utohexstr(Contents[0]) 1888 << '\n'; 1889 continue; 1890 } 1891 1892 W.printHex("FormatVersion", Contents[0]); 1893 if (Contents.size() == 1) 1894 continue; 1895 1896 ARMAttributeParser(&W).Parse(Contents, true); 1897 } 1898 } 1899 } 1900 1901 namespace { 1902 template <class ELFT> class MipsGOTParser { 1903 public: 1904 TYPEDEF_ELF_TYPES(ELFT) 1905 typedef typename ELFO::Elf_Addr GOTEntry; 1906 MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 1907 Elf_Dyn_Range DynTable, ScopedPrinter &W); 1908 1909 void parseGOT(); 1910 void parsePLT(); 1911 1912 private: 1913 ELFDumper<ELFT> *Dumper; 1914 const ELFO *Obj; 1915 ScopedPrinter &W; 1916 llvm::Optional<uint64_t> DtPltGot; 1917 llvm::Optional<uint64_t> DtLocalGotNum; 1918 llvm::Optional<uint64_t> DtGotSym; 1919 llvm::Optional<uint64_t> DtMipsPltGot; 1920 llvm::Optional<uint64_t> DtJmpRel; 1921 1922 std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const; 1923 const GOTEntry *makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum); 1924 1925 void printGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt, 1926 const GOTEntry *It); 1927 void printGlobalGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt, 1928 const GOTEntry *It, const Elf_Sym *Sym, 1929 StringRef StrTable, bool IsDynamic); 1930 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt, 1931 const GOTEntry *It, StringRef Purpose); 1932 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt, 1933 const GOTEntry *It, StringRef StrTable, 1934 const Elf_Sym *Sym); 1935 }; 1936 } 1937 1938 template <class ELFT> 1939 MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 1940 Elf_Dyn_Range DynTable, ScopedPrinter &W) 1941 : Dumper(Dumper), Obj(Obj), W(W) { 1942 for (const auto &Entry : DynTable) { 1943 switch (Entry.getTag()) { 1944 case ELF::DT_PLTGOT: 1945 DtPltGot = Entry.getVal(); 1946 break; 1947 case ELF::DT_MIPS_LOCAL_GOTNO: 1948 DtLocalGotNum = Entry.getVal(); 1949 break; 1950 case ELF::DT_MIPS_GOTSYM: 1951 DtGotSym = Entry.getVal(); 1952 break; 1953 case ELF::DT_MIPS_PLTGOT: 1954 DtMipsPltGot = Entry.getVal(); 1955 break; 1956 case ELF::DT_JMPREL: 1957 DtJmpRel = Entry.getVal(); 1958 break; 1959 } 1960 } 1961 } 1962 1963 template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() { 1964 // See "Global Offset Table" in Chapter 5 in the following document 1965 // for detailed GOT description. 1966 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf 1967 if (!DtPltGot) { 1968 W.startLine() << "Cannot find PLTGOT dynamic table tag.\n"; 1969 return; 1970 } 1971 if (!DtLocalGotNum) { 1972 W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n"; 1973 return; 1974 } 1975 if (!DtGotSym) { 1976 W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n"; 1977 return; 1978 } 1979 1980 StringRef StrTable = Dumper->getDynamicStringTable(); 1981 const Elf_Sym *DynSymBegin = Dumper->dynamic_symbols().begin(); 1982 const Elf_Sym *DynSymEnd = Dumper->dynamic_symbols().end(); 1983 std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd)); 1984 1985 if (*DtGotSym > DynSymTotal) 1986 report_fatal_error("MIPS_GOTSYM exceeds a number of dynamic symbols"); 1987 1988 std::size_t GlobalGotNum = DynSymTotal - *DtGotSym; 1989 1990 if (*DtLocalGotNum + GlobalGotNum == 0) { 1991 W.startLine() << "GOT is empty.\n"; 1992 return; 1993 } 1994 1995 const Elf_Shdr *GOTShdr = findNotEmptySectionByAddress(Obj, *DtPltGot); 1996 if (!GOTShdr) 1997 report_fatal_error("There is no not empty GOT section at 0x" + 1998 Twine::utohexstr(*DtPltGot)); 1999 2000 ArrayRef<uint8_t> GOT = unwrapOrError(Obj->getSectionContents(GOTShdr)); 2001 2002 if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(GOT)) 2003 report_fatal_error("Number of GOT entries exceeds the size of GOT section"); 2004 2005 const GOTEntry *GotBegin = makeGOTIter(GOT, 0); 2006 const GOTEntry *GotLocalEnd = makeGOTIter(GOT, *DtLocalGotNum); 2007 const GOTEntry *It = GotBegin; 2008 2009 DictScope GS(W, "Primary GOT"); 2010 2011 W.printHex("Canonical gp value", GOTShdr->sh_addr + 0x7ff0); 2012 { 2013 ListScope RS(W, "Reserved entries"); 2014 2015 { 2016 DictScope D(W, "Entry"); 2017 printGotEntry(GOTShdr->sh_addr, GotBegin, It++); 2018 W.printString("Purpose", StringRef("Lazy resolver")); 2019 } 2020 2021 if (It != GotLocalEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) { 2022 DictScope D(W, "Entry"); 2023 printGotEntry(GOTShdr->sh_addr, GotBegin, It++); 2024 W.printString("Purpose", StringRef("Module pointer (GNU extension)")); 2025 } 2026 } 2027 { 2028 ListScope LS(W, "Local entries"); 2029 for (; It != GotLocalEnd; ++It) { 2030 DictScope D(W, "Entry"); 2031 printGotEntry(GOTShdr->sh_addr, GotBegin, It); 2032 } 2033 } 2034 { 2035 ListScope GS(W, "Global entries"); 2036 2037 const GOTEntry *GotGlobalEnd = 2038 makeGOTIter(GOT, *DtLocalGotNum + GlobalGotNum); 2039 const Elf_Sym *GotDynSym = DynSymBegin + *DtGotSym; 2040 for (; It != GotGlobalEnd; ++It) { 2041 DictScope D(W, "Entry"); 2042 printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++, StrTable, 2043 true); 2044 } 2045 } 2046 2047 std::size_t SpecGotNum = getGOTTotal(GOT) - *DtLocalGotNum - GlobalGotNum; 2048 W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum)); 2049 } 2050 2051 template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() { 2052 if (!DtMipsPltGot) { 2053 W.startLine() << "Cannot find MIPS_PLTGOT dynamic table tag.\n"; 2054 return; 2055 } 2056 if (!DtJmpRel) { 2057 W.startLine() << "Cannot find JMPREL dynamic table tag.\n"; 2058 return; 2059 } 2060 2061 const Elf_Shdr *PLTShdr = findNotEmptySectionByAddress(Obj, *DtMipsPltGot); 2062 if (!PLTShdr) 2063 report_fatal_error("There is no not empty PLTGOT section at 0x " + 2064 Twine::utohexstr(*DtMipsPltGot)); 2065 ArrayRef<uint8_t> PLT = unwrapOrError(Obj->getSectionContents(PLTShdr)); 2066 2067 const Elf_Shdr *PLTRelShdr = findNotEmptySectionByAddress(Obj, *DtJmpRel); 2068 if (!PLTRelShdr) 2069 report_fatal_error("There is no not empty RELPLT section at 0x" + 2070 Twine::utohexstr(*DtJmpRel)); 2071 const Elf_Shdr *SymTable = 2072 unwrapOrError(Obj->getSection(PLTRelShdr->sh_link)); 2073 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTable)); 2074 2075 const GOTEntry *PLTBegin = makeGOTIter(PLT, 0); 2076 const GOTEntry *PLTEnd = makeGOTIter(PLT, getGOTTotal(PLT)); 2077 const GOTEntry *It = PLTBegin; 2078 2079 DictScope GS(W, "PLT GOT"); 2080 { 2081 ListScope RS(W, "Reserved entries"); 2082 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "PLT lazy resolver"); 2083 if (It != PLTEnd) 2084 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "Module pointer"); 2085 } 2086 { 2087 ListScope GS(W, "Entries"); 2088 2089 switch (PLTRelShdr->sh_type) { 2090 case ELF::SHT_REL: 2091 for (const Elf_Rel &Rel : unwrapOrError(Obj->rels(PLTRelShdr))) { 2092 const Elf_Sym *Sym = 2093 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable)); 2094 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym); 2095 if (++It == PLTEnd) 2096 break; 2097 } 2098 break; 2099 case ELF::SHT_RELA: 2100 for (const Elf_Rela &Rel : unwrapOrError(Obj->relas(PLTRelShdr))) { 2101 const Elf_Sym *Sym = 2102 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable)); 2103 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym); 2104 if (++It == PLTEnd) 2105 break; 2106 } 2107 break; 2108 } 2109 } 2110 } 2111 2112 template <class ELFT> 2113 std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const { 2114 return GOT.size() / sizeof(GOTEntry); 2115 } 2116 2117 template <class ELFT> 2118 const typename MipsGOTParser<ELFT>::GOTEntry * 2119 MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) { 2120 const char *Data = reinterpret_cast<const char *>(GOT.data()); 2121 return reinterpret_cast<const GOTEntry *>(Data + EntryNum * sizeof(GOTEntry)); 2122 } 2123 2124 template <class ELFT> 2125 void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr, 2126 const GOTEntry *BeginIt, 2127 const GOTEntry *It) { 2128 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry); 2129 W.printHex("Address", GotAddr + Offset); 2130 W.printNumber("Access", Offset - 0x7ff0); 2131 W.printHex("Initial", *It); 2132 } 2133 2134 template <class ELFT> 2135 void MipsGOTParser<ELFT>::printGlobalGotEntry( 2136 uint64_t GotAddr, const GOTEntry *BeginIt, const GOTEntry *It, 2137 const Elf_Sym *Sym, StringRef StrTable, bool IsDynamic) { 2138 printGotEntry(GotAddr, BeginIt, It); 2139 2140 W.printHex("Value", Sym->st_value); 2141 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 2142 2143 unsigned SectionIndex = 0; 2144 StringRef SectionName; 2145 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(), 2146 Dumper->getShndxTable(), SectionName, SectionIndex); 2147 W.printHex("Section", SectionName, SectionIndex); 2148 2149 std::string FullSymbolName = 2150 Dumper->getFullSymbolName(Sym, StrTable, IsDynamic); 2151 W.printNumber("Name", FullSymbolName, Sym->st_name); 2152 } 2153 2154 template <class ELFT> 2155 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr, 2156 const GOTEntry *BeginIt, 2157 const GOTEntry *It, StringRef Purpose) { 2158 DictScope D(W, "Entry"); 2159 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry); 2160 W.printHex("Address", PLTAddr + Offset); 2161 W.printHex("Initial", *It); 2162 W.printString("Purpose", Purpose); 2163 } 2164 2165 template <class ELFT> 2166 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr, 2167 const GOTEntry *BeginIt, 2168 const GOTEntry *It, StringRef StrTable, 2169 const Elf_Sym *Sym) { 2170 DictScope D(W, "Entry"); 2171 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry); 2172 W.printHex("Address", PLTAddr + Offset); 2173 W.printHex("Initial", *It); 2174 W.printHex("Value", Sym->st_value); 2175 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 2176 2177 unsigned SectionIndex = 0; 2178 StringRef SectionName; 2179 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(), 2180 Dumper->getShndxTable(), SectionName, SectionIndex); 2181 W.printHex("Section", SectionName, SectionIndex); 2182 2183 std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true); 2184 W.printNumber("Name", FullSymbolName, Sym->st_name); 2185 } 2186 2187 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() { 2188 if (Obj->getHeader()->e_machine != EM_MIPS) { 2189 W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n"; 2190 return; 2191 } 2192 2193 MipsGOTParser<ELFT> GOTParser(this, Obj, dynamic_table(), W); 2194 GOTParser.parseGOT(); 2195 GOTParser.parsePLT(); 2196 } 2197 2198 static const EnumEntry<unsigned> ElfMipsISAExtType[] = { 2199 {"None", Mips::AFL_EXT_NONE}, 2200 {"Broadcom SB-1", Mips::AFL_EXT_SB1}, 2201 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON}, 2202 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2}, 2203 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP}, 2204 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3}, 2205 {"LSI R4010", Mips::AFL_EXT_4010}, 2206 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E}, 2207 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F}, 2208 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A}, 2209 {"MIPS R4650", Mips::AFL_EXT_4650}, 2210 {"MIPS R5900", Mips::AFL_EXT_5900}, 2211 {"MIPS R10000", Mips::AFL_EXT_10000}, 2212 {"NEC VR4100", Mips::AFL_EXT_4100}, 2213 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111}, 2214 {"NEC VR4120", Mips::AFL_EXT_4120}, 2215 {"NEC VR5400", Mips::AFL_EXT_5400}, 2216 {"NEC VR5500", Mips::AFL_EXT_5500}, 2217 {"RMI Xlr", Mips::AFL_EXT_XLR}, 2218 {"Toshiba R3900", Mips::AFL_EXT_3900} 2219 }; 2220 2221 static const EnumEntry<unsigned> ElfMipsASEFlags[] = { 2222 {"DSP", Mips::AFL_ASE_DSP}, 2223 {"DSPR2", Mips::AFL_ASE_DSPR2}, 2224 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA}, 2225 {"MCU", Mips::AFL_ASE_MCU}, 2226 {"MDMX", Mips::AFL_ASE_MDMX}, 2227 {"MIPS-3D", Mips::AFL_ASE_MIPS3D}, 2228 {"MT", Mips::AFL_ASE_MT}, 2229 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS}, 2230 {"VZ", Mips::AFL_ASE_VIRT}, 2231 {"MSA", Mips::AFL_ASE_MSA}, 2232 {"MIPS16", Mips::AFL_ASE_MIPS16}, 2233 {"microMIPS", Mips::AFL_ASE_MICROMIPS}, 2234 {"XPA", Mips::AFL_ASE_XPA} 2235 }; 2236 2237 static const EnumEntry<unsigned> ElfMipsFpABIType[] = { 2238 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY}, 2239 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE}, 2240 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE}, 2241 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT}, 2242 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)", 2243 Mips::Val_GNU_MIPS_ABI_FP_OLD_64}, 2244 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX}, 2245 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64}, 2246 {"Hard float compat (32-bit CPU, 64-bit FPU)", 2247 Mips::Val_GNU_MIPS_ABI_FP_64A} 2248 }; 2249 2250 static const EnumEntry<unsigned> ElfMipsFlags1[] { 2251 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG}, 2252 }; 2253 2254 static int getMipsRegisterSize(uint8_t Flag) { 2255 switch (Flag) { 2256 case Mips::AFL_REG_NONE: 2257 return 0; 2258 case Mips::AFL_REG_32: 2259 return 32; 2260 case Mips::AFL_REG_64: 2261 return 64; 2262 case Mips::AFL_REG_128: 2263 return 128; 2264 default: 2265 return -1; 2266 } 2267 } 2268 2269 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { 2270 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags"); 2271 if (!Shdr) { 2272 W.startLine() << "There is no .MIPS.abiflags section in the file.\n"; 2273 return; 2274 } 2275 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2276 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) { 2277 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n"; 2278 return; 2279 } 2280 2281 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data()); 2282 2283 raw_ostream &OS = W.getOStream(); 2284 DictScope GS(W, "MIPS ABI Flags"); 2285 2286 W.printNumber("Version", Flags->version); 2287 W.startLine() << "ISA: "; 2288 if (Flags->isa_rev <= 1) 2289 OS << format("MIPS%u", Flags->isa_level); 2290 else 2291 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev); 2292 OS << "\n"; 2293 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType)); 2294 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags)); 2295 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType)); 2296 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size)); 2297 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size)); 2298 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size)); 2299 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1)); 2300 W.printHex("Flags 2", Flags->flags2); 2301 } 2302 2303 template <class ELFT> 2304 static void printMipsReginfoData(ScopedPrinter &W, 2305 const Elf_Mips_RegInfo<ELFT> &Reginfo) { 2306 W.printHex("GP", Reginfo.ri_gp_value); 2307 W.printHex("General Mask", Reginfo.ri_gprmask); 2308 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]); 2309 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]); 2310 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]); 2311 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]); 2312 } 2313 2314 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() { 2315 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo"); 2316 if (!Shdr) { 2317 W.startLine() << "There is no .reginfo section in the file.\n"; 2318 return; 2319 } 2320 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2321 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) { 2322 W.startLine() << "The .reginfo section has a wrong size.\n"; 2323 return; 2324 } 2325 2326 DictScope GS(W, "MIPS RegInfo"); 2327 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data()); 2328 printMipsReginfoData(W, *Reginfo); 2329 } 2330 2331 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() { 2332 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options"); 2333 if (!Shdr) { 2334 W.startLine() << "There is no .MIPS.options section in the file.\n"; 2335 return; 2336 } 2337 2338 DictScope GS(W, "MIPS Options"); 2339 2340 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2341 while (!Sec.empty()) { 2342 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) { 2343 W.startLine() << "The .MIPS.options section has a wrong size.\n"; 2344 return; 2345 } 2346 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data()); 2347 DictScope GS(W, getElfMipsOptionsOdkType(O->kind)); 2348 switch (O->kind) { 2349 case ODK_REGINFO: 2350 printMipsReginfoData(W, O->getRegInfo()); 2351 break; 2352 default: 2353 W.startLine() << "Unsupported MIPS options tag.\n"; 2354 break; 2355 } 2356 Sec = Sec.slice(O->size); 2357 } 2358 } 2359 2360 template <class ELFT> void ELFDumper<ELFT>::printAMDGPUCodeObjectMetadata() { 2361 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".note"); 2362 if (!Shdr) { 2363 W.startLine() << "There is no .note section in the file.\n"; 2364 return; 2365 } 2366 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2367 2368 const uint32_t CodeObjectMetadataNoteType = 10; 2369 for (auto I = reinterpret_cast<const Elf_Word *>(&Sec[0]), 2370 E = I + Sec.size()/4; I != E;) { 2371 uint32_t NameSZ = I[0]; 2372 uint32_t DescSZ = I[1]; 2373 uint32_t Type = I[2]; 2374 I += 3; 2375 2376 StringRef Name; 2377 if (NameSZ) { 2378 Name = StringRef(reinterpret_cast<const char *>(I), NameSZ - 1); 2379 I += alignTo<4>(NameSZ)/4; 2380 } 2381 2382 if (Name == "AMD" && Type == CodeObjectMetadataNoteType) { 2383 StringRef Desc(reinterpret_cast<const char *>(I), DescSZ); 2384 W.printString(Desc); 2385 } 2386 I += alignTo<4>(DescSZ)/4; 2387 } 2388 } 2389 2390 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const { 2391 const Elf_Shdr *StackMapSection = nullptr; 2392 for (const auto &Sec : unwrapOrError(Obj->sections())) { 2393 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2394 if (Name == ".llvm_stackmaps") { 2395 StackMapSection = &Sec; 2396 break; 2397 } 2398 } 2399 2400 if (!StackMapSection) 2401 return; 2402 2403 StringRef StackMapContents; 2404 ArrayRef<uint8_t> StackMapContentsArray = 2405 unwrapOrError(Obj->getSectionContents(StackMapSection)); 2406 2407 prettyPrintStackMap(llvm::outs(), StackMapV2Parser<ELFT::TargetEndianness>( 2408 StackMapContentsArray)); 2409 } 2410 2411 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() { 2412 ELFDumperStyle->printGroupSections(Obj); 2413 } 2414 2415 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1, 2416 StringRef Str2) { 2417 OS.PadToColumn(2u); 2418 OS << Str1; 2419 OS.PadToColumn(37u); 2420 OS << Str2 << "\n"; 2421 OS.flush(); 2422 } 2423 2424 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 2425 const Elf_Ehdr *e = Obj->getHeader(); 2426 OS << "ELF Header:\n"; 2427 OS << " Magic: "; 2428 std::string Str; 2429 for (int i = 0; i < ELF::EI_NIDENT; i++) 2430 OS << format(" %02x", static_cast<int>(e->e_ident[i])); 2431 OS << "\n"; 2432 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 2433 printFields(OS, "Class:", Str); 2434 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding)); 2435 printFields(OS, "Data:", Str); 2436 OS.PadToColumn(2u); 2437 OS << "Version:"; 2438 OS.PadToColumn(37u); 2439 OS << to_hexString(e->e_ident[ELF::EI_VERSION]); 2440 if (e->e_version == ELF::EV_CURRENT) 2441 OS << " (current)"; 2442 OS << "\n"; 2443 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI)); 2444 printFields(OS, "OS/ABI:", Str); 2445 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]); 2446 printFields(OS, "ABI Version:", Str); 2447 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType)); 2448 printFields(OS, "Type:", Str); 2449 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType)); 2450 printFields(OS, "Machine:", Str); 2451 Str = "0x" + to_hexString(e->e_version); 2452 printFields(OS, "Version:", Str); 2453 Str = "0x" + to_hexString(e->e_entry); 2454 printFields(OS, "Entry point address:", Str); 2455 Str = to_string(e->e_phoff) + " (bytes into file)"; 2456 printFields(OS, "Start of program headers:", Str); 2457 Str = to_string(e->e_shoff) + " (bytes into file)"; 2458 printFields(OS, "Start of section headers:", Str); 2459 Str = "0x" + to_hexString(e->e_flags); 2460 printFields(OS, "Flags:", Str); 2461 Str = to_string(e->e_ehsize) + " (bytes)"; 2462 printFields(OS, "Size of this header:", Str); 2463 Str = to_string(e->e_phentsize) + " (bytes)"; 2464 printFields(OS, "Size of program headers:", Str); 2465 Str = to_string(e->e_phnum); 2466 printFields(OS, "Number of program headers:", Str); 2467 Str = to_string(e->e_shentsize) + " (bytes)"; 2468 printFields(OS, "Size of section headers:", Str); 2469 Str = to_string(e->e_shnum); 2470 printFields(OS, "Number of section headers:", Str); 2471 Str = to_string(e->e_shstrndx); 2472 printFields(OS, "Section header string table index:", Str); 2473 } 2474 2475 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) { 2476 uint32_t SectionIndex = 0; 2477 bool HasGroups = false; 2478 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2479 if (Sec.sh_type == ELF::SHT_GROUP) { 2480 HasGroups = true; 2481 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2482 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 2483 const Elf_Sym *Signature = 2484 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 2485 ArrayRef<Elf_Word> Data = unwrapOrError( 2486 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 2487 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2488 OS << "\n" << getGroupType(Data[0]) << " group section [" 2489 << format_decimal(SectionIndex, 5) << "] `" << Name << "' [" 2490 << StrTable.data() + Signature->st_name << "] contains " 2491 << (Data.size() - 1) << " sections:\n" 2492 << " [Index] Name\n"; 2493 for (auto &Ndx : Data.slice(1)) { 2494 auto Sec = unwrapOrError(Obj->getSection(Ndx)); 2495 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 2496 OS << " [" << format_decimal(Ndx, 5) << "] " << Name 2497 << "\n"; 2498 } 2499 } 2500 ++SectionIndex; 2501 } 2502 if (!HasGroups) 2503 OS << "There are no section groups in this file.\n"; 2504 } 2505 2506 template <class ELFT> 2507 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 2508 const Elf_Rela &R, bool IsRela) { 2509 std::string Offset, Info, Addend = "", Value; 2510 SmallString<32> RelocName; 2511 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 2512 StringRef TargetName; 2513 const Elf_Sym *Sym = nullptr; 2514 unsigned Width = ELFT::Is64Bits ? 16 : 8; 2515 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 2516 2517 // First two fields are bit width dependent. The rest of them are after are 2518 // fixed width. 2519 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 2520 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 2521 Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab)); 2522 if (Sym && Sym->getType() == ELF::STT_SECTION) { 2523 const Elf_Shdr *Sec = unwrapOrError( 2524 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 2525 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 2526 } else if (Sym) { 2527 TargetName = unwrapOrError(Sym->getName(StrTable)); 2528 } 2529 2530 if (Sym && IsRela) { 2531 if (R.r_addend < 0) 2532 Addend = " - "; 2533 else 2534 Addend = " + "; 2535 } 2536 2537 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 2538 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 2539 2540 int64_t RelAddend = R.r_addend; 2541 if (IsRela) 2542 Addend += to_hexString(std::abs(RelAddend), false); 2543 2544 if (Sym) 2545 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 2546 2547 Fields[0].Str = Offset; 2548 Fields[1].Str = Info; 2549 Fields[2].Str = RelocName; 2550 Fields[3].Str = Value; 2551 Fields[4].Str = TargetName; 2552 for (auto &field : Fields) 2553 printField(field); 2554 OS << Addend; 2555 OS << "\n"; 2556 } 2557 2558 static inline void printRelocHeader(raw_ostream &OS, bool Is64, bool IsRela) { 2559 if (Is64) 2560 OS << " Offset Info Type" 2561 << " Symbol's Value Symbol's Name"; 2562 else 2563 OS << " Offset Info Type Sym. Value " 2564 << "Symbol's Name"; 2565 if (IsRela) 2566 OS << (IsRela ? " + Addend" : ""); 2567 OS << "\n"; 2568 } 2569 2570 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) { 2571 bool HasRelocSections = false; 2572 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2573 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA) 2574 continue; 2575 HasRelocSections = true; 2576 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2577 unsigned Entries = Sec.getEntityCount(); 2578 uintX_t Offset = Sec.sh_offset; 2579 OS << "\nRelocation section '" << Name << "' at offset 0x" 2580 << to_hexString(Offset, false) << " contains " << Entries 2581 << " entries:\n"; 2582 printRelocHeader(OS, ELFT::Is64Bits, (Sec.sh_type == ELF::SHT_RELA)); 2583 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2584 if (Sec.sh_type == ELF::SHT_REL) { 2585 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) { 2586 Elf_Rela Rela; 2587 Rela.r_offset = R.r_offset; 2588 Rela.r_info = R.r_info; 2589 Rela.r_addend = 0; 2590 printRelocation(Obj, SymTab, Rela, false); 2591 } 2592 } else { 2593 for (const auto &R : unwrapOrError(Obj->relas(&Sec))) 2594 printRelocation(Obj, SymTab, R, true); 2595 } 2596 } 2597 if (!HasRelocSections) 2598 OS << "\nThere are no relocations in this file.\n"; 2599 } 2600 2601 std::string getSectionTypeString(unsigned Arch, unsigned Type) { 2602 using namespace ELF; 2603 switch (Arch) { 2604 case EM_ARM: 2605 switch (Type) { 2606 case SHT_ARM_EXIDX: 2607 return "ARM_EXIDX"; 2608 case SHT_ARM_PREEMPTMAP: 2609 return "ARM_PREEMPTMAP"; 2610 case SHT_ARM_ATTRIBUTES: 2611 return "ARM_ATTRIBUTES"; 2612 case SHT_ARM_DEBUGOVERLAY: 2613 return "ARM_DEBUGOVERLAY"; 2614 case SHT_ARM_OVERLAYSECTION: 2615 return "ARM_OVERLAYSECTION"; 2616 } 2617 case EM_X86_64: 2618 switch (Type) { 2619 case SHT_X86_64_UNWIND: 2620 return "X86_64_UNWIND"; 2621 } 2622 case EM_MIPS: 2623 case EM_MIPS_RS3_LE: 2624 switch (Type) { 2625 case SHT_MIPS_REGINFO: 2626 return "MIPS_REGINFO"; 2627 case SHT_MIPS_OPTIONS: 2628 return "MIPS_OPTIONS"; 2629 case SHT_MIPS_ABIFLAGS: 2630 return "MIPS_ABIFLAGS"; 2631 case SHT_MIPS_DWARF: 2632 return "SHT_MIPS_DWARF"; 2633 } 2634 } 2635 switch (Type) { 2636 case SHT_NULL: 2637 return "NULL"; 2638 case SHT_PROGBITS: 2639 return "PROGBITS"; 2640 case SHT_SYMTAB: 2641 return "SYMTAB"; 2642 case SHT_STRTAB: 2643 return "STRTAB"; 2644 case SHT_RELA: 2645 return "RELA"; 2646 case SHT_HASH: 2647 return "HASH"; 2648 case SHT_DYNAMIC: 2649 return "DYNAMIC"; 2650 case SHT_NOTE: 2651 return "NOTE"; 2652 case SHT_NOBITS: 2653 return "NOBITS"; 2654 case SHT_REL: 2655 return "REL"; 2656 case SHT_SHLIB: 2657 return "SHLIB"; 2658 case SHT_DYNSYM: 2659 return "DYNSYM"; 2660 case SHT_INIT_ARRAY: 2661 return "INIT_ARRAY"; 2662 case SHT_FINI_ARRAY: 2663 return "FINI_ARRAY"; 2664 case SHT_PREINIT_ARRAY: 2665 return "PREINIT_ARRAY"; 2666 case SHT_GROUP: 2667 return "GROUP"; 2668 case SHT_SYMTAB_SHNDX: 2669 return "SYMTAB SECTION INDICES"; 2670 // FIXME: Parse processor specific GNU attributes 2671 case SHT_GNU_ATTRIBUTES: 2672 return "ATTRIBUTES"; 2673 case SHT_GNU_HASH: 2674 return "GNU_HASH"; 2675 case SHT_GNU_verdef: 2676 return "VERDEF"; 2677 case SHT_GNU_verneed: 2678 return "VERNEED"; 2679 case SHT_GNU_versym: 2680 return "VERSYM"; 2681 default: 2682 return ""; 2683 } 2684 return ""; 2685 } 2686 2687 template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) { 2688 size_t SectionIndex = 0; 2689 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize, 2690 Alignment; 2691 unsigned Bias; 2692 unsigned Width; 2693 2694 if (ELFT::Is64Bits) { 2695 Bias = 0; 2696 Width = 16; 2697 } else { 2698 Bias = 8; 2699 Width = 8; 2700 } 2701 OS << "There are " << to_string(Obj->getHeader()->e_shnum) 2702 << " section headers, starting at offset " 2703 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n"; 2704 OS << "Section Headers:\n"; 2705 Field Fields[11] = {{"[Nr]", 2}, 2706 {"Name", 7}, 2707 {"Type", 25}, 2708 {"Address", 41}, 2709 {"Off", 58 - Bias}, 2710 {"Size", 65 - Bias}, 2711 {"ES", 72 - Bias}, 2712 {"Flg", 75 - Bias}, 2713 {"Lk", 79 - Bias}, 2714 {"Inf", 82 - Bias}, 2715 {"Al", 86 - Bias}}; 2716 for (auto &f : Fields) 2717 printField(f); 2718 OS << "\n"; 2719 2720 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2721 Number = to_string(SectionIndex); 2722 Fields[0].Str = Number; 2723 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec)); 2724 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type); 2725 Fields[2].Str = Type; 2726 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width)); 2727 Fields[3].Str = Address; 2728 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6)); 2729 Fields[4].Str = Offset; 2730 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6)); 2731 Fields[5].Str = Size; 2732 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2)); 2733 Fields[6].Str = EntrySize; 2734 Flags = getGNUFlags(Sec.sh_flags); 2735 Fields[7].Str = Flags; 2736 Link = to_string(Sec.sh_link); 2737 Fields[8].Str = Link; 2738 Info = to_string(Sec.sh_info); 2739 Fields[9].Str = Info; 2740 Alignment = to_string(Sec.sh_addralign); 2741 Fields[10].Str = Alignment; 2742 OS.PadToColumn(Fields[0].Column); 2743 OS << "[" << right_justify(Fields[0].Str, 2) << "]"; 2744 for (int i = 1; i < 7; i++) 2745 printField(Fields[i]); 2746 OS.PadToColumn(Fields[7].Column); 2747 OS << right_justify(Fields[7].Str, 3); 2748 OS.PadToColumn(Fields[8].Column); 2749 OS << right_justify(Fields[8].Str, 2); 2750 OS.PadToColumn(Fields[9].Column); 2751 OS << right_justify(Fields[9].Str, 3); 2752 OS.PadToColumn(Fields[10].Column); 2753 OS << right_justify(Fields[10].Str, 2); 2754 OS << "\n"; 2755 ++SectionIndex; 2756 } 2757 OS << "Key to Flags:\n" 2758 << " W (write), A (alloc), X (execute), M (merge), S (strings), l " 2759 "(large)\n" 2760 << " I (info), L (link order), G (group), T (TLS), E (exclude),\ 2761 x (unknown)\n" 2762 << " O (extra OS processing required) o (OS specific),\ 2763 p (processor specific)\n"; 2764 } 2765 2766 template <class ELFT> 2767 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name, 2768 size_t Entries) { 2769 if (Name.size()) 2770 OS << "\nSymbol table '" << Name << "' contains " << Entries 2771 << " entries:\n"; 2772 else 2773 OS << "\n Symbol table for image:\n"; 2774 2775 if (ELFT::Is64Bits) 2776 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2777 else 2778 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2779 } 2780 2781 template <class ELFT> 2782 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj, 2783 const Elf_Sym *Symbol, 2784 const Elf_Sym *FirstSym) { 2785 unsigned SectionIndex = Symbol->st_shndx; 2786 switch (SectionIndex) { 2787 case ELF::SHN_UNDEF: 2788 return "UND"; 2789 case ELF::SHN_ABS: 2790 return "ABS"; 2791 case ELF::SHN_COMMON: 2792 return "COM"; 2793 case ELF::SHN_XINDEX: 2794 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 2795 Symbol, FirstSym, this->dumper()->getShndxTable())); 2796 default: 2797 // Find if: 2798 // Processor specific 2799 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC) 2800 return std::string("PRC[0x") + 2801 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2802 // OS specific 2803 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS) 2804 return std::string("OS[0x") + 2805 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2806 // Architecture reserved: 2807 if (SectionIndex >= ELF::SHN_LORESERVE && 2808 SectionIndex <= ELF::SHN_HIRESERVE) 2809 return std::string("RSV[0x") + 2810 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2811 // A normal section with an index 2812 return to_string(format_decimal(SectionIndex, 3)); 2813 } 2814 } 2815 2816 template <class ELFT> 2817 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 2818 const Elf_Sym *FirstSym, StringRef StrTable, 2819 bool IsDynamic) { 2820 static int Idx = 0; 2821 static bool Dynamic = true; 2822 size_t Width; 2823 2824 // If this function was called with a different value from IsDynamic 2825 // from last call, happens when we move from dynamic to static symbol 2826 // table, "Num" field should be reset. 2827 if (!Dynamic != !IsDynamic) { 2828 Idx = 0; 2829 Dynamic = false; 2830 } 2831 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section; 2832 unsigned Bias = 0; 2833 if (ELFT::Is64Bits) { 2834 Bias = 8; 2835 Width = 16; 2836 } else { 2837 Bias = 0; 2838 Width = 8; 2839 } 2840 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias, 2841 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias}; 2842 Num = to_string(format_decimal(Idx++, 6)) + ":"; 2843 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 2844 Size = to_string(format_decimal(Symbol->st_size, 5)); 2845 unsigned char SymbolType = Symbol->getType(); 2846 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 2847 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 2848 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 2849 else 2850 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 2851 unsigned Vis = Symbol->getVisibility(); 2852 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 2853 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 2854 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 2855 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 2856 Fields[0].Str = Num; 2857 Fields[1].Str = Value; 2858 Fields[2].Str = Size; 2859 Fields[3].Str = Type; 2860 Fields[4].Str = Binding; 2861 Fields[5].Str = Visibility; 2862 Fields[6].Str = Section; 2863 Fields[7].Str = Name; 2864 for (auto &Entry : Fields) 2865 printField(Entry); 2866 OS << "\n"; 2867 } 2868 template <class ELFT> 2869 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, 2870 uint32_t Sym, StringRef StrTable, 2871 uint32_t Bucket) { 2872 std::string Num, Buc, Name, Value, Size, Binding, Type, Visibility, Section; 2873 unsigned Width, Bias = 0; 2874 if (ELFT::Is64Bits) { 2875 Bias = 8; 2876 Width = 16; 2877 } else { 2878 Bias = 0; 2879 Width = 8; 2880 } 2881 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias, 2882 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias}; 2883 Num = to_string(format_decimal(Sym, 5)); 2884 Buc = to_string(format_decimal(Bucket, 3)) + ":"; 2885 2886 const auto Symbol = FirstSym + Sym; 2887 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 2888 Size = to_string(format_decimal(Symbol->st_size, 5)); 2889 unsigned char SymbolType = Symbol->getType(); 2890 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 2891 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 2892 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 2893 else 2894 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 2895 unsigned Vis = Symbol->getVisibility(); 2896 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 2897 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 2898 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 2899 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, true); 2900 Fields[0].Str = Num; 2901 Fields[1].Str = Buc; 2902 Fields[2].Str = Value; 2903 Fields[3].Str = Size; 2904 Fields[4].Str = Type; 2905 Fields[5].Str = Binding; 2906 Fields[6].Str = Visibility; 2907 Fields[7].Str = Section; 2908 Fields[8].Str = Name; 2909 for (auto &Entry : Fields) 2910 printField(Entry); 2911 OS << "\n"; 2912 } 2913 2914 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) { 2915 if (opts::DynamicSymbols) 2916 return; 2917 this->dumper()->printSymbolsHelper(true); 2918 this->dumper()->printSymbolsHelper(false); 2919 } 2920 2921 template <class ELFT> 2922 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 2923 if (this->dumper()->getDynamicStringTable().size() == 0) 2924 return; 2925 auto StringTable = this->dumper()->getDynamicStringTable(); 2926 auto DynSyms = this->dumper()->dynamic_symbols(); 2927 auto GnuHash = this->dumper()->getGnuHashTable(); 2928 auto SysVHash = this->dumper()->getHashTable(); 2929 2930 // If no hash or .gnu.hash found, try using symbol table 2931 if (GnuHash == nullptr && SysVHash == nullptr) 2932 this->dumper()->printSymbolsHelper(true); 2933 2934 // Try printing .hash 2935 if (this->dumper()->getHashTable()) { 2936 OS << "\n Symbol table of .hash for image:\n"; 2937 if (ELFT::Is64Bits) 2938 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2939 else 2940 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2941 OS << "\n"; 2942 2943 uint32_t NBuckets = SysVHash->nbucket; 2944 uint32_t NChains = SysVHash->nchain; 2945 auto Buckets = SysVHash->buckets(); 2946 auto Chains = SysVHash->chains(); 2947 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 2948 if (Buckets[Buc] == ELF::STN_UNDEF) 2949 continue; 2950 for (uint32_t Ch = Buckets[Buc]; Ch < NChains; Ch = Chains[Ch]) { 2951 if (Ch == ELF::STN_UNDEF) 2952 break; 2953 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc); 2954 } 2955 } 2956 } 2957 2958 // Try printing .gnu.hash 2959 if (GnuHash) { 2960 OS << "\n Symbol table of .gnu.hash for image:\n"; 2961 if (ELFT::Is64Bits) 2962 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2963 else 2964 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2965 OS << "\n"; 2966 uint32_t NBuckets = GnuHash->nbuckets; 2967 auto Buckets = GnuHash->buckets(); 2968 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 2969 if (Buckets[Buc] == ELF::STN_UNDEF) 2970 continue; 2971 uint32_t Index = Buckets[Buc]; 2972 uint32_t GnuHashable = Index - GnuHash->symndx; 2973 // Print whole chain 2974 while (true) { 2975 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc); 2976 // Chain ends at symbol with stopper bit 2977 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1) 2978 break; 2979 } 2980 } 2981 } 2982 } 2983 2984 static inline std::string printPhdrFlags(unsigned Flag) { 2985 std::string Str; 2986 Str = (Flag & PF_R) ? "R" : " "; 2987 Str += (Flag & PF_W) ? "W" : " "; 2988 Str += (Flag & PF_X) ? "E" : " "; 2989 return Str; 2990 } 2991 2992 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO 2993 // PT_TLS must only have SHF_TLS sections 2994 template <class ELFT> 2995 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr, 2996 const Elf_Shdr &Sec) { 2997 return (((Sec.sh_flags & ELF::SHF_TLS) && 2998 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) || 2999 (Phdr.p_type == ELF::PT_GNU_RELRO))) || 3000 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS)); 3001 } 3002 3003 // Non-SHT_NOBITS must have its offset inside the segment 3004 // Only non-zero section can be at end of segment 3005 template <class ELFT> 3006 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3007 if (Sec.sh_type == ELF::SHT_NOBITS) 3008 return true; 3009 bool IsSpecial = 3010 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3011 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3012 auto SectionSize = 3013 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3014 if (Sec.sh_offset >= Phdr.p_offset) 3015 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset) 3016 /*only non-zero sized sections at end*/ && 3017 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz)); 3018 return false; 3019 } 3020 3021 // SHF_ALLOC must have VMA inside segment 3022 // Only non-zero section can be at end of segment 3023 template <class ELFT> 3024 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3025 if (!(Sec.sh_flags & ELF::SHF_ALLOC)) 3026 return true; 3027 bool IsSpecial = 3028 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3029 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3030 auto SectionSize = 3031 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3032 if (Sec.sh_addr >= Phdr.p_vaddr) 3033 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) && 3034 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz)); 3035 return false; 3036 } 3037 3038 // No section with zero size must be at start or end of PT_DYNAMIC 3039 template <class ELFT> 3040 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3041 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0) 3042 return true; 3043 // Is section within the phdr both based on offset and VMA ? 3044 return ((Sec.sh_type == ELF::SHT_NOBITS) || 3045 (Sec.sh_offset > Phdr.p_offset && 3046 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) && 3047 (!(Sec.sh_flags & ELF::SHF_ALLOC) || 3048 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz)); 3049 } 3050 3051 template <class ELFT> 3052 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3053 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3054 unsigned Width = ELFT::Is64Bits ? 18 : 10; 3055 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7; 3056 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align; 3057 3058 const Elf_Ehdr *Header = Obj->getHeader(); 3059 Field Fields[8] = {2, 17, 26, 37 + Bias, 3060 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias}; 3061 OS << "\nElf file type is " 3062 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n" 3063 << "Entry point " << format_hex(Header->e_entry, 3) << "\n" 3064 << "There are " << Header->e_phnum << " program headers," 3065 << " starting at offset " << Header->e_phoff << "\n\n" 3066 << "Program Headers:\n"; 3067 if (ELFT::Is64Bits) 3068 OS << " Type Offset VirtAddr PhysAddr " 3069 << " FileSiz MemSiz Flg Align\n"; 3070 else 3071 OS << " Type Offset VirtAddr PhysAddr FileSiz " 3072 << "MemSiz Flg Align\n"; 3073 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) { 3074 Type = getElfPtType(Header->e_machine, Phdr.p_type); 3075 Offset = to_string(format_hex(Phdr.p_offset, 8)); 3076 VMA = to_string(format_hex(Phdr.p_vaddr, Width)); 3077 LMA = to_string(format_hex(Phdr.p_paddr, Width)); 3078 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth)); 3079 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth)); 3080 Flag = printPhdrFlags(Phdr.p_flags); 3081 Align = to_string(format_hex(Phdr.p_align, 1)); 3082 Fields[0].Str = Type; 3083 Fields[1].Str = Offset; 3084 Fields[2].Str = VMA; 3085 Fields[3].Str = LMA; 3086 Fields[4].Str = FileSz; 3087 Fields[5].Str = MemSz; 3088 Fields[6].Str = Flag; 3089 Fields[7].Str = Align; 3090 for (auto Field : Fields) 3091 printField(Field); 3092 if (Phdr.p_type == ELF::PT_INTERP) { 3093 OS << "\n [Requesting program interpreter: "; 3094 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]"; 3095 } 3096 OS << "\n"; 3097 } 3098 OS << "\n Section to Segment mapping:\n Segment Sections...\n"; 3099 int Phnum = 0; 3100 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3101 std::string Sections; 3102 OS << format(" %2.2d ", Phnum++); 3103 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3104 // Check if each section is in a segment and then print mapping. 3105 // readelf additionally makes sure it does not print zero sized sections 3106 // at end of segments and for PT_DYNAMIC both start and end of section 3107 // .tbss must only be shown in PT_TLS section. 3108 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) && 3109 ((Sec.sh_flags & ELF::SHF_TLS) != 0) && 3110 Phdr.p_type != ELF::PT_TLS; 3111 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) && 3112 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) && 3113 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) 3114 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " "; 3115 } 3116 OS << Sections << "\n"; 3117 OS.flush(); 3118 } 3119 } 3120 3121 template <class ELFT> 3122 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R, 3123 bool IsRela) { 3124 SmallString<32> RelocName; 3125 StringRef SymbolName; 3126 unsigned Width = ELFT::Is64Bits ? 16 : 8; 3127 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3128 // First two fields are bit width dependent. The rest of them are after are 3129 // fixed width. 3130 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 3131 3132 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL()); 3133 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3134 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 3135 SymbolName = 3136 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 3137 std::string Addend = "", Info, Offset, Value; 3138 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 3139 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 3140 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 3141 int64_t RelAddend = R.r_addend; 3142 if (SymbolName.size() && IsRela) { 3143 if (R.r_addend < 0) 3144 Addend = " - "; 3145 else 3146 Addend = " + "; 3147 } 3148 3149 if (!SymbolName.size() && Sym->getValue() == 0) 3150 Value = ""; 3151 3152 if (IsRela) 3153 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1)); 3154 3155 3156 Fields[0].Str = Offset; 3157 Fields[1].Str = Info; 3158 Fields[2].Str = RelocName.c_str(); 3159 Fields[3].Str = Value; 3160 Fields[4].Str = SymbolName; 3161 for (auto &Field : Fields) 3162 printField(Field); 3163 OS << Addend; 3164 OS << "\n"; 3165 } 3166 3167 template <class ELFT> 3168 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3169 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3170 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3171 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3172 if (DynRelaRegion.Size > 0) { 3173 OS << "\n'RELA' relocation section at offset " 3174 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) - 3175 Obj->base(), 3176 1) << " contains " << DynRelaRegion.Size << " bytes:\n"; 3177 printRelocHeader(OS, ELFT::Is64Bits, true); 3178 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3179 printDynamicRelocation(Obj, Rela, true); 3180 } 3181 if (DynRelRegion.Size > 0) { 3182 OS << "\n'REL' relocation section at offset " 3183 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) - 3184 Obj->base(), 3185 1) << " contains " << DynRelRegion.Size << " bytes:\n"; 3186 printRelocHeader(OS, ELFT::Is64Bits, false); 3187 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3188 Elf_Rela Rela; 3189 Rela.r_offset = Rel.r_offset; 3190 Rela.r_info = Rel.r_info; 3191 Rela.r_addend = 0; 3192 printDynamicRelocation(Obj, Rela, false); 3193 } 3194 } 3195 if (DynPLTRelRegion.Size) { 3196 OS << "\n'PLT' relocation section at offset " 3197 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) - 3198 Obj->base(), 3199 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n"; 3200 } 3201 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) { 3202 printRelocHeader(OS, ELFT::Is64Bits, true); 3203 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3204 printDynamicRelocation(Obj, Rela, true); 3205 } else { 3206 printRelocHeader(OS, ELFT::Is64Bits, false); 3207 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3208 Elf_Rela Rela; 3209 Rela.r_offset = Rel.r_offset; 3210 Rela.r_info = Rel.r_info; 3211 Rela.r_addend = 0; 3212 printDynamicRelocation(Obj, Rela, false); 3213 } 3214 } 3215 } 3216 3217 // Hash histogram shows statistics of how efficient the hash was for the 3218 // dynamic symbol table. The table shows number of hash buckets for different 3219 // lengths of chains as absolute number and percentage of the total buckets. 3220 // Additionally cumulative coverage of symbols for each set of buckets. 3221 template <class ELFT> 3222 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3223 3224 const Elf_Hash *HashTable = this->dumper()->getHashTable(); 3225 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable(); 3226 3227 // Print histogram for .hash section 3228 if (HashTable) { 3229 size_t NBucket = HashTable->nbucket; 3230 size_t NChain = HashTable->nchain; 3231 ArrayRef<Elf_Word> Buckets = HashTable->buckets(); 3232 ArrayRef<Elf_Word> Chains = HashTable->chains(); 3233 size_t TotalSyms = 0; 3234 // If hash table is correct, we have at least chains with 0 length 3235 size_t MaxChain = 1; 3236 size_t CumulativeNonZero = 0; 3237 3238 if (NChain == 0 || NBucket == 0) 3239 return; 3240 3241 std::vector<size_t> ChainLen(NBucket, 0); 3242 // Go over all buckets and and note chain lengths of each bucket (total 3243 // unique chain lengths). 3244 for (size_t B = 0; B < NBucket; B++) { 3245 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C]) 3246 if (MaxChain <= ++ChainLen[B]) 3247 MaxChain++; 3248 TotalSyms += ChainLen[B]; 3249 } 3250 3251 if (!TotalSyms) 3252 return; 3253 3254 std::vector<size_t> Count(MaxChain, 0) ; 3255 // Count how long is the chain for each bucket 3256 for (size_t B = 0; B < NBucket; B++) 3257 ++Count[ChainLen[B]]; 3258 // Print Number of buckets with each chain lengths and their cumulative 3259 // coverage of the symbols 3260 OS << "Histogram for bucket list length (total of " << NBucket 3261 << " buckets)\n" 3262 << " Length Number % of total Coverage\n"; 3263 for (size_t I = 0; I < MaxChain; I++) { 3264 CumulativeNonZero += Count[I] * I; 3265 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3266 (Count[I] * 100.0) / NBucket, 3267 (CumulativeNonZero * 100.0) / TotalSyms); 3268 } 3269 } 3270 3271 // Print histogram for .gnu.hash section 3272 if (GnuHashTable) { 3273 size_t NBucket = GnuHashTable->nbuckets; 3274 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets(); 3275 unsigned NumSyms = this->dumper()->dynamic_symbols().size(); 3276 if (!NumSyms) 3277 return; 3278 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms); 3279 size_t Symndx = GnuHashTable->symndx; 3280 size_t TotalSyms = 0; 3281 size_t MaxChain = 1; 3282 size_t CumulativeNonZero = 0; 3283 3284 if (Chains.size() == 0 || NBucket == 0) 3285 return; 3286 3287 std::vector<size_t> ChainLen(NBucket, 0); 3288 3289 for (size_t B = 0; B < NBucket; B++) { 3290 if (!Buckets[B]) 3291 continue; 3292 size_t Len = 1; 3293 for (size_t C = Buckets[B] - Symndx; 3294 C < Chains.size() && (Chains[C] & 1) == 0; C++) 3295 if (MaxChain < ++Len) 3296 MaxChain++; 3297 ChainLen[B] = Len; 3298 TotalSyms += Len; 3299 } 3300 MaxChain++; 3301 3302 if (!TotalSyms) 3303 return; 3304 3305 std::vector<size_t> Count(MaxChain, 0) ; 3306 for (size_t B = 0; B < NBucket; B++) 3307 ++Count[ChainLen[B]]; 3308 // Print Number of buckets with each chain lengths and their cumulative 3309 // coverage of the symbols 3310 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket 3311 << " buckets)\n" 3312 << " Length Number % of total Coverage\n"; 3313 for (size_t I = 0; I <MaxChain; I++) { 3314 CumulativeNonZero += Count[I] * I; 3315 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3316 (Count[I] * 100.0) / NBucket, 3317 (CumulativeNonZero * 100.0) / TotalSyms); 3318 } 3319 } 3320 } 3321 3322 static std::string getGNUNoteTypeName(const uint32_t NT) { 3323 static const struct { 3324 uint32_t ID; 3325 const char *Name; 3326 } Notes[] = { 3327 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"}, 3328 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"}, 3329 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"}, 3330 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"}, 3331 }; 3332 3333 for (const auto &Note : Notes) 3334 if (Note.ID == NT) 3335 return std::string(Note.Name); 3336 3337 std::string string; 3338 raw_string_ostream OS(string); 3339 OS << format("Unknown note type (0x%08x)", NT); 3340 return string; 3341 } 3342 3343 static std::string getFreeBSDNoteTypeName(const uint32_t NT) { 3344 static const struct { 3345 uint32_t ID; 3346 const char *Name; 3347 } Notes[] = { 3348 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"}, 3349 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"}, 3350 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"}, 3351 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"}, 3352 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"}, 3353 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"}, 3354 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"}, 3355 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"}, 3356 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS, 3357 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"}, 3358 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"}, 3359 }; 3360 3361 for (const auto &Note : Notes) 3362 if (Note.ID == NT) 3363 return std::string(Note.Name); 3364 3365 std::string string; 3366 raw_string_ostream OS(string); 3367 OS << format("Unknown note type (0x%08x)", NT); 3368 return string; 3369 } 3370 3371 template <typename ELFT> 3372 static void printGNUNote(raw_ostream &OS, uint32_t NoteType, 3373 ArrayRef<typename ELFFile<ELFT>::Elf_Word> Words) { 3374 switch (NoteType) { 3375 default: 3376 return; 3377 case ELF::NT_GNU_ABI_TAG: { 3378 static const char *OSNames[] = { 3379 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl", 3380 }; 3381 3382 StringRef OSName = "Unknown"; 3383 if (Words[0] < array_lengthof(OSNames)) 3384 OSName = OSNames[Words[0]]; 3385 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3]; 3386 3387 if (Words.size() < 4) 3388 OS << " <corrupt GNU_ABI_TAG>"; 3389 else 3390 OS << " OS: " << OSName << ", ABI: " << Major << "." << Minor << "." 3391 << Patch; 3392 break; 3393 } 3394 case ELF::NT_GNU_BUILD_ID: { 3395 OS << " Build ID: "; 3396 ArrayRef<uint8_t> ID(reinterpret_cast<const uint8_t *>(Words.data()), 3397 Words.size() * 4); 3398 for (const auto &B : ID) 3399 OS << format_hex_no_prefix(B, 2); 3400 break; 3401 } 3402 case ELF::NT_GNU_GOLD_VERSION: 3403 OS << " Version: " 3404 << StringRef(reinterpret_cast<const char *>(Words.data()), 3405 Words.size() * 4); 3406 break; 3407 } 3408 3409 OS << '\n'; 3410 } 3411 3412 template <class ELFT> 3413 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3414 const Elf_Ehdr *e = Obj->getHeader(); 3415 bool IsCore = e->e_type == ELF::ET_CORE; 3416 3417 auto process = [&](const typename ELFFile<ELFT>::Elf_Off Offset, 3418 const typename ELFFile<ELFT>::Elf_Addr Size) { 3419 if (Size <= 0) 3420 return; 3421 3422 const auto *P = static_cast<const uint8_t *>(Obj->base() + Offset); 3423 const auto *E = P + Size; 3424 3425 OS << "Displaying notes found at file offset " << format_hex(Offset, 10) 3426 << " with length " << format_hex(Size, 10) << ":\n" 3427 << " Owner Data size\tDescription\n"; 3428 3429 while (P < E) { 3430 const Elf_Word *Words = reinterpret_cast<const Elf_Word *>(&P[0]); 3431 3432 uint32_t NameSize = Words[0]; 3433 uint32_t DescriptorSize = Words[1]; 3434 uint32_t Type = Words[2]; 3435 3436 ArrayRef<Elf_Word> Descriptor(&Words[3 + (alignTo<4>(NameSize) / 4)], 3437 alignTo<4>(DescriptorSize) / 4); 3438 3439 StringRef Name; 3440 if (NameSize) 3441 Name = 3442 StringRef(reinterpret_cast<const char *>(&Words[3]), NameSize - 1); 3443 3444 OS << " " << Name << std::string(22 - NameSize, ' ') 3445 << format_hex(DescriptorSize, 10) << '\t'; 3446 3447 if (Name == "GNU") { 3448 OS << getGNUNoteTypeName(Type) << '\n'; 3449 printGNUNote<ELFT>(OS, Type, Descriptor); 3450 } else if (Name == "FreeBSD") { 3451 OS << getFreeBSDNoteTypeName(Type) << '\n'; 3452 } else { 3453 OS << "Unknown note type: (" << format_hex(Type, 10) << ')'; 3454 } 3455 OS << '\n'; 3456 3457 P = P + 3 * sizeof(Elf_Word) + alignTo<4>(NameSize) + 3458 alignTo<4>(DescriptorSize); 3459 } 3460 }; 3461 3462 if (IsCore) { 3463 for (const auto &P : unwrapOrError(Obj->program_headers())) 3464 if (P.p_type == PT_NOTE) 3465 process(P.p_offset, P.p_filesz); 3466 } else { 3467 for (const auto &S : unwrapOrError(Obj->sections())) 3468 if (S.sh_type == SHT_NOTE) 3469 process(S.sh_offset, S.sh_size); 3470 } 3471 } 3472 3473 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 3474 const Elf_Ehdr *e = Obj->getHeader(); 3475 { 3476 DictScope D(W, "ElfHeader"); 3477 { 3478 DictScope D(W, "Ident"); 3479 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4)); 3480 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 3481 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA], 3482 makeArrayRef(ElfDataEncoding)); 3483 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]); 3484 3485 // Handle architecture specific OS/ABI values. 3486 if (e->e_machine == ELF::EM_AMDGPU && 3487 e->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA) 3488 W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA); 3489 else 3490 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI], 3491 makeArrayRef(ElfOSABI)); 3492 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]); 3493 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD)); 3494 } 3495 3496 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType)); 3497 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType)); 3498 W.printNumber("Version", e->e_version); 3499 W.printHex("Entry", e->e_entry); 3500 W.printHex("ProgramHeaderOffset", e->e_phoff); 3501 W.printHex("SectionHeaderOffset", e->e_shoff); 3502 if (e->e_machine == EM_MIPS) 3503 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags), 3504 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 3505 unsigned(ELF::EF_MIPS_MACH)); 3506 else 3507 W.printFlags("Flags", e->e_flags); 3508 W.printNumber("HeaderSize", e->e_ehsize); 3509 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize); 3510 W.printNumber("ProgramHeaderCount", e->e_phnum); 3511 W.printNumber("SectionHeaderEntrySize", e->e_shentsize); 3512 W.printNumber("SectionHeaderCount", e->e_shnum); 3513 W.printNumber("StringTableSectionIndex", e->e_shstrndx); 3514 } 3515 } 3516 3517 template <class ELFT> 3518 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) { 3519 DictScope Lists(W, "Groups"); 3520 uint32_t SectionIndex = 0; 3521 bool HasGroups = false; 3522 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3523 if (Sec.sh_type == ELF::SHT_GROUP) { 3524 HasGroups = true; 3525 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 3526 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 3527 const Elf_Sym *Sym = 3528 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 3529 auto Data = unwrapOrError( 3530 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 3531 DictScope D(W, "Group"); 3532 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 3533 W.printNumber("Name", Name, Sec.sh_name); 3534 W.printNumber("Index", SectionIndex); 3535 W.printHex("Type", getGroupType(Data[0]), Data[0]); 3536 W.startLine() << "Signature: " << StrTable.data() + Sym->st_name << "\n"; 3537 { 3538 ListScope L(W, "Section(s) in group"); 3539 size_t Member = 1; 3540 while (Member < Data.size()) { 3541 auto Sec = unwrapOrError(Obj->getSection(Data[Member])); 3542 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 3543 W.startLine() << Name << " (" << Data[Member++] << ")\n"; 3544 } 3545 } 3546 } 3547 ++SectionIndex; 3548 } 3549 if (!HasGroups) 3550 W.startLine() << "There are no group sections in the file.\n"; 3551 } 3552 3553 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) { 3554 ListScope D(W, "Relocations"); 3555 3556 int SectionNumber = -1; 3557 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3558 ++SectionNumber; 3559 3560 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA) 3561 continue; 3562 3563 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 3564 3565 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; 3566 W.indent(); 3567 3568 printRelocations(&Sec, Obj); 3569 3570 W.unindent(); 3571 W.startLine() << "}\n"; 3572 } 3573 } 3574 3575 template <class ELFT> 3576 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) { 3577 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 3578 3579 switch (Sec->sh_type) { 3580 case ELF::SHT_REL: 3581 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) { 3582 Elf_Rela Rela; 3583 Rela.r_offset = R.r_offset; 3584 Rela.r_info = R.r_info; 3585 Rela.r_addend = 0; 3586 printRelocation(Obj, Rela, SymTab); 3587 } 3588 break; 3589 case ELF::SHT_RELA: 3590 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec))) 3591 printRelocation(Obj, R, SymTab); 3592 break; 3593 } 3594 } 3595 3596 template <class ELFT> 3597 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel, 3598 const Elf_Shdr *SymTab) { 3599 SmallString<32> RelocName; 3600 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 3601 StringRef TargetName; 3602 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab)); 3603 if (Sym && Sym->getType() == ELF::STT_SECTION) { 3604 const Elf_Shdr *Sec = unwrapOrError( 3605 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 3606 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 3607 } else if (Sym) { 3608 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 3609 TargetName = unwrapOrError(Sym->getName(StrTable)); 3610 } 3611 3612 if (opts::ExpandRelocs) { 3613 DictScope Group(W, "Relocation"); 3614 W.printHex("Offset", Rel.r_offset); 3615 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 3616 W.printNumber("Symbol", TargetName.size() > 0 ? TargetName : "-", 3617 Rel.getSymbol(Obj->isMips64EL())); 3618 W.printHex("Addend", Rel.r_addend); 3619 } else { 3620 raw_ostream &OS = W.startLine(); 3621 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 3622 << (TargetName.size() > 0 ? TargetName : "-") << " " 3623 << W.hex(Rel.r_addend) << "\n"; 3624 } 3625 } 3626 3627 template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) { 3628 ListScope SectionsD(W, "Sections"); 3629 3630 int SectionIndex = -1; 3631 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3632 ++SectionIndex; 3633 3634 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 3635 3636 DictScope SectionD(W, "Section"); 3637 W.printNumber("Index", SectionIndex); 3638 W.printNumber("Name", Name, Sec.sh_name); 3639 W.printHex("Type", 3640 getElfSectionType(Obj->getHeader()->e_machine, Sec.sh_type), 3641 Sec.sh_type); 3642 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags), 3643 std::end(ElfSectionFlags)); 3644 switch (Obj->getHeader()->e_machine) { 3645 case EM_AMDGPU: 3646 SectionFlags.insert(SectionFlags.end(), std::begin(ElfAMDGPUSectionFlags), 3647 std::end(ElfAMDGPUSectionFlags)); 3648 break; 3649 case EM_ARM: 3650 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags), 3651 std::end(ElfARMSectionFlags)); 3652 break; 3653 case EM_HEXAGON: 3654 SectionFlags.insert(SectionFlags.end(), 3655 std::begin(ElfHexagonSectionFlags), 3656 std::end(ElfHexagonSectionFlags)); 3657 break; 3658 case EM_MIPS: 3659 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags), 3660 std::end(ElfMipsSectionFlags)); 3661 break; 3662 case EM_X86_64: 3663 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags), 3664 std::end(ElfX86_64SectionFlags)); 3665 break; 3666 case EM_XCORE: 3667 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags), 3668 std::end(ElfXCoreSectionFlags)); 3669 break; 3670 default: 3671 // Nothing to do. 3672 break; 3673 } 3674 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags)); 3675 W.printHex("Address", Sec.sh_addr); 3676 W.printHex("Offset", Sec.sh_offset); 3677 W.printNumber("Size", Sec.sh_size); 3678 W.printNumber("Link", Sec.sh_link); 3679 W.printNumber("Info", Sec.sh_info); 3680 W.printNumber("AddressAlignment", Sec.sh_addralign); 3681 W.printNumber("EntrySize", Sec.sh_entsize); 3682 3683 if (opts::SectionRelocations) { 3684 ListScope D(W, "Relocations"); 3685 printRelocations(&Sec, Obj); 3686 } 3687 3688 if (opts::SectionSymbols) { 3689 ListScope D(W, "Symbols"); 3690 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec(); 3691 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 3692 3693 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) { 3694 const Elf_Shdr *SymSec = unwrapOrError( 3695 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable())); 3696 if (SymSec == &Sec) 3697 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(), 3698 StrTable, false); 3699 } 3700 } 3701 3702 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) { 3703 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec)); 3704 W.printBinaryBlock("SectionData", 3705 StringRef((const char *)Data.data(), Data.size())); 3706 } 3707 } 3708 } 3709 3710 template <class ELFT> 3711 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 3712 const Elf_Sym *First, StringRef StrTable, 3713 bool IsDynamic) { 3714 unsigned SectionIndex = 0; 3715 StringRef SectionName; 3716 getSectionNameIndex(*Obj, Symbol, First, this->dumper()->getShndxTable(), 3717 SectionName, SectionIndex); 3718 std::string FullSymbolName = 3719 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 3720 unsigned char SymbolType = Symbol->getType(); 3721 3722 DictScope D(W, "Symbol"); 3723 W.printNumber("Name", FullSymbolName, Symbol->st_name); 3724 W.printHex("Value", Symbol->st_value); 3725 W.printNumber("Size", Symbol->st_size); 3726 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3727 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3728 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3729 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3730 else 3731 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes)); 3732 if (Symbol->st_other == 0) 3733 // Usually st_other flag is zero. Do not pollute the output 3734 // by flags enumeration in that case. 3735 W.printNumber("Other", 0); 3736 else { 3737 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags), 3738 std::end(ElfSymOtherFlags)); 3739 if (Obj->getHeader()->e_machine == EM_MIPS) { 3740 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16 3741 // flag overlapped with other ST_MIPS_xxx flags. So consider both 3742 // cases separately. 3743 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16) 3744 SymOtherFlags.insert(SymOtherFlags.end(), 3745 std::begin(ElfMips16SymOtherFlags), 3746 std::end(ElfMips16SymOtherFlags)); 3747 else 3748 SymOtherFlags.insert(SymOtherFlags.end(), 3749 std::begin(ElfMipsSymOtherFlags), 3750 std::end(ElfMipsSymOtherFlags)); 3751 } 3752 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u); 3753 } 3754 W.printHex("Section", SectionName, SectionIndex); 3755 } 3756 3757 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) { 3758 ListScope Group(W, "Symbols"); 3759 this->dumper()->printSymbolsHelper(false); 3760 } 3761 3762 template <class ELFT> 3763 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 3764 ListScope Group(W, "DynamicSymbols"); 3765 this->dumper()->printSymbolsHelper(true); 3766 } 3767 3768 template <class ELFT> 3769 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3770 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3771 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3772 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3773 if (DynRelRegion.Size && DynRelaRegion.Size) 3774 report_fatal_error("There are both REL and RELA dynamic relocations"); 3775 W.startLine() << "Dynamic Relocations {\n"; 3776 W.indent(); 3777 if (DynRelaRegion.Size > 0) 3778 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3779 printDynamicRelocation(Obj, Rela); 3780 else 3781 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3782 Elf_Rela Rela; 3783 Rela.r_offset = Rel.r_offset; 3784 Rela.r_info = Rel.r_info; 3785 Rela.r_addend = 0; 3786 printDynamicRelocation(Obj, Rela); 3787 } 3788 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) 3789 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3790 printDynamicRelocation(Obj, Rela); 3791 else 3792 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3793 Elf_Rela Rela; 3794 Rela.r_offset = Rel.r_offset; 3795 Rela.r_info = Rel.r_info; 3796 Rela.r_addend = 0; 3797 printDynamicRelocation(Obj, Rela); 3798 } 3799 W.unindent(); 3800 W.startLine() << "}\n"; 3801 } 3802 3803 template <class ELFT> 3804 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) { 3805 SmallString<32> RelocName; 3806 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 3807 StringRef SymbolName; 3808 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL()); 3809 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3810 SymbolName = 3811 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 3812 if (opts::ExpandRelocs) { 3813 DictScope Group(W, "Relocation"); 3814 W.printHex("Offset", Rel.r_offset); 3815 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 3816 W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-"); 3817 W.printHex("Addend", Rel.r_addend); 3818 } else { 3819 raw_ostream &OS = W.startLine(); 3820 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 3821 << (SymbolName.size() > 0 ? SymbolName : "-") << " " 3822 << W.hex(Rel.r_addend) << "\n"; 3823 } 3824 } 3825 3826 template <class ELFT> 3827 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3828 ListScope L(W, "ProgramHeaders"); 3829 3830 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3831 DictScope P(W, "ProgramHeader"); 3832 W.printHex("Type", 3833 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type), 3834 Phdr.p_type); 3835 W.printHex("Offset", Phdr.p_offset); 3836 W.printHex("VirtualAddress", Phdr.p_vaddr); 3837 W.printHex("PhysicalAddress", Phdr.p_paddr); 3838 W.printNumber("FileSize", Phdr.p_filesz); 3839 W.printNumber("MemSize", Phdr.p_memsz); 3840 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags)); 3841 W.printNumber("Alignment", Phdr.p_align); 3842 } 3843 } 3844 3845 template <class ELFT> 3846 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3847 W.startLine() << "Hash Histogram not implemented!\n"; 3848 } 3849 3850 template <class ELFT> 3851 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3852 W.startLine() << "printNotes not implemented!\n"; 3853 } 3854 3855