1 //===- ELFDumper.cpp - ELF-specific dumper --------------------------------===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
10 /// This file implements the ELF-specific dumper for llvm-readobj.
12 //===----------------------------------------------------------------------===//
14 #include "ARMEHABIPrinter.h"
15 #include "DwarfCFIEHPrinter.h"
17 #include "ObjDumper.h"
18 #include "StackMapPrinter.h"
19 #include "llvm-readobj.h"
20 #include "llvm/ADT/ArrayRef.h"
21 #include "llvm/ADT/DenseMap.h"
22 #include "llvm/ADT/DenseSet.h"
23 #include "llvm/ADT/Optional.h"
24 #include "llvm/ADT/PointerIntPair.h"
25 #include "llvm/ADT/STLExtras.h"
26 #include "llvm/ADT/SmallString.h"
27 #include "llvm/ADT/SmallVector.h"
28 #include "llvm/ADT/StringExtras.h"
29 #include "llvm/ADT/StringRef.h"
30 #include "llvm/ADT/Twine.h"
31 #include "llvm/BinaryFormat/AMDGPUMetadataVerifier.h"
32 #include "llvm/BinaryFormat/ELF.h"
33 #include "llvm/Demangle/Demangle.h"
34 #include "llvm/Object/ELF.h"
35 #include "llvm/Object/ELFObjectFile.h"
36 #include "llvm/Object/ELFTypes.h"
37 #include "llvm/Object/Error.h"
38 #include "llvm/Object/ObjectFile.h"
39 #include "llvm/Object/StackMapParser.h"
40 #include "llvm/Support/AMDGPUMetadata.h"
41 #include "llvm/Support/ARMAttributeParser.h"
42 #include "llvm/Support/ARMBuildAttributes.h"
43 #include "llvm/Support/Casting.h"
44 #include "llvm/Support/Compiler.h"
45 #include "llvm/Support/Endian.h"
46 #include "llvm/Support/ErrorHandling.h"
47 #include "llvm/Support/Format.h"
48 #include "llvm/Support/FormatVariadic.h"
49 #include "llvm/Support/FormattedStream.h"
50 #include "llvm/Support/LEB128.h"
51 #include "llvm/Support/MathExtras.h"
52 #include "llvm/Support/MipsABIFlags.h"
53 #include "llvm/Support/ScopedPrinter.h"
54 #include "llvm/Support/raw_ostream.h"
63 #include <system_error>
67 using namespace llvm::object;
70 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \
71 case ns::enum: return #enum;
73 #define ENUM_ENT(enum, altName) \
74 { #enum, altName, ELF::enum }
76 #define ENUM_ENT_1(enum) \
77 { #enum, #enum, ELF::enum }
79 #define LLVM_READOBJ_PHDR_ENUM(ns, enum) \
81 return std::string(#enum).substr(3);
83 #define TYPEDEF_ELF_TYPES(ELFT) \
84 using ELFO = ELFFile<ELFT>; \
85 using Elf_Addr = typename ELFT::Addr; \
86 using Elf_Shdr = typename ELFT::Shdr; \
87 using Elf_Sym = typename ELFT::Sym; \
88 using Elf_Dyn = typename ELFT::Dyn; \
89 using Elf_Dyn_Range = typename ELFT::DynRange; \
90 using Elf_Rel = typename ELFT::Rel; \
91 using Elf_Rela = typename ELFT::Rela; \
92 using Elf_Relr = typename ELFT::Relr; \
93 using Elf_Rel_Range = typename ELFT::RelRange; \
94 using Elf_Rela_Range = typename ELFT::RelaRange; \
95 using Elf_Relr_Range = typename ELFT::RelrRange; \
96 using Elf_Phdr = typename ELFT::Phdr; \
97 using Elf_Half = typename ELFT::Half; \
98 using Elf_Ehdr = typename ELFT::Ehdr; \
99 using Elf_Word = typename ELFT::Word; \
100 using Elf_Hash = typename ELFT::Hash; \
101 using Elf_GnuHash = typename ELFT::GnuHash; \
102 using Elf_Note = typename ELFT::Note; \
103 using Elf_Sym_Range = typename ELFT::SymRange; \
104 using Elf_Versym = typename ELFT::Versym; \
105 using Elf_Verneed = typename ELFT::Verneed; \
106 using Elf_Vernaux = typename ELFT::Vernaux; \
107 using Elf_Verdef = typename ELFT::Verdef; \
108 using Elf_Verdaux = typename ELFT::Verdaux; \
109 using Elf_CGProfile = typename ELFT::CGProfile; \
110 using uintX_t = typename ELFT::uint;
114 template <class ELFT> class DumpStyle;
116 /// Represents a contiguous uniform range in the file. We cannot just create a
117 /// range directly because when creating one of these from the .dynamic table
118 /// the size, entity size and virtual address are different entries in arbitrary
119 /// order (DT_REL, DT_RELSZ, DT_RELENT for example).
120 struct DynRegionInfo {
121 DynRegionInfo() = default;
122 DynRegionInfo(const void *A, uint64_t S, uint64_t ES)
123 : Addr(A), Size(S), EntSize(ES) {}
125 /// Address in current address space.
126 const void *Addr = nullptr;
127 /// Size in bytes of the region.
129 /// Size of each entity in the region.
130 uint64_t EntSize = 0;
132 template <typename Type> ArrayRef<Type> getAsArrayRef() const {
133 const Type *Start = reinterpret_cast<const Type *>(Addr);
135 return {Start, Start};
136 if (EntSize != sizeof(Type) || Size % EntSize)
137 reportError("Invalid entity size");
138 return {Start, Start + (Size / EntSize)};
142 template <typename ELFT>
143 class ELFDumper : public ObjDumper {
145 ELFDumper(const object::ELFObjectFile<ELFT> *ObjF, ScopedPrinter &Writer);
147 void printFileHeaders() override;
148 void printSectionHeaders() override;
149 void printRelocations() override;
150 void printDynamicRelocations() override;
151 void printSymbols(bool PrintSymbols, bool PrintDynamicSymbols) override;
152 void printHashSymbols() override;
153 void printUnwindInfo() override;
155 void printDynamicTable() override;
156 void printNeededLibraries() override;
157 void printProgramHeaders(bool PrintProgramHeaders,
158 cl::boolOrDefault PrintSectionMapping) override;
159 void printHashTable() override;
160 void printGnuHashTable() override;
161 void printLoadName() override;
162 void printVersionInfo() override;
163 void printGroupSections() override;
165 void printAttributes() override;
166 void printMipsPLTGOT() override;
167 void printMipsABIFlags() override;
168 void printMipsReginfo() override;
169 void printMipsOptions() override;
171 void printStackMap() const override;
173 void printHashHistogram() override;
175 void printCGProfile() override;
176 void printAddrsig() override;
178 void printNotes() override;
180 void printELFLinkerOptions() override;
183 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle;
185 TYPEDEF_ELF_TYPES(ELFT)
187 DynRegionInfo checkDRI(DynRegionInfo DRI) {
188 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
189 if (DRI.Addr < Obj->base() ||
190 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize())
191 error(llvm::object::object_error::parse_failed);
195 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) {
196 return checkDRI({ObjF->getELFFile()->base() + P->p_offset, P->p_filesz, EntSize});
199 DynRegionInfo createDRIFrom(const Elf_Shdr *S) {
200 return checkDRI({ObjF->getELFFile()->base() + S->sh_offset, S->sh_size, S->sh_entsize});
203 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments);
205 void printValue(uint64_t Type, uint64_t Value);
207 StringRef getDynamicString(uint64_t Offset) const;
208 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb,
209 bool &IsDefault) const;
210 void LoadVersionMap() const;
211 void LoadVersionNeeds(const Elf_Shdr *ec) const;
212 void LoadVersionDefs(const Elf_Shdr *sec) const;
214 const object::ELFObjectFile<ELFT> *ObjF;
215 DynRegionInfo DynRelRegion;
216 DynRegionInfo DynRelaRegion;
217 DynRegionInfo DynRelrRegion;
218 DynRegionInfo DynPLTRelRegion;
219 DynRegionInfo DynSymRegion;
220 DynRegionInfo DynamicTable;
221 StringRef DynamicStringTable;
223 const Elf_Hash *HashTable = nullptr;
224 const Elf_GnuHash *GnuHashTable = nullptr;
225 const Elf_Shdr *DotSymtabSec = nullptr;
226 const Elf_Shdr *DotCGProfileSec = nullptr;
227 const Elf_Shdr *DotAddrsigSec = nullptr;
228 StringRef DynSymtabName;
229 ArrayRef<Elf_Word> ShndxTable;
231 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version
232 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r
233 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d
235 // Records for each version index the corresponding Verdef or Vernaux entry.
236 // This is filled the first time LoadVersionMap() is called.
237 class VersionMapEntry : public PointerIntPair<const void *, 1> {
239 // If the integer is 0, this is an Elf_Verdef*.
240 // If the integer is 1, this is an Elf_Vernaux*.
241 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {}
242 VersionMapEntry(const Elf_Verdef *verdef)
243 : PointerIntPair<const void *, 1>(verdef, 0) {}
244 VersionMapEntry(const Elf_Vernaux *vernaux)
245 : PointerIntPair<const void *, 1>(vernaux, 1) {}
247 bool isNull() const { return getPointer() == nullptr; }
248 bool isVerdef() const { return !isNull() && getInt() == 0; }
249 bool isVernaux() const { return !isNull() && getInt() == 1; }
250 const Elf_Verdef *getVerdef() const {
251 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr;
253 const Elf_Vernaux *getVernaux() const {
254 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr;
257 mutable SmallVector<VersionMapEntry, 16> VersionMap;
260 Elf_Dyn_Range dynamic_table() const {
261 return DynamicTable.getAsArrayRef<Elf_Dyn>();
264 Elf_Sym_Range dynamic_symbols() const {
265 return DynSymRegion.getAsArrayRef<Elf_Sym>();
268 Elf_Rel_Range dyn_rels() const;
269 Elf_Rela_Range dyn_relas() const;
270 Elf_Relr_Range dyn_relrs() const;
271 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable,
272 bool IsDynamic) const;
273 void getSectionNameIndex(const Elf_Sym *Symbol, const Elf_Sym *FirstSym,
274 StringRef &SectionName,
275 unsigned &SectionIndex) const;
276 std::string getStaticSymbolName(uint32_t Index) const;
278 void printSymbolsHelper(bool IsDynamic) const;
279 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; }
280 const Elf_Shdr *getDotCGProfileSec() const { return DotCGProfileSec; }
281 const Elf_Shdr *getDotAddrsigSec() const { return DotAddrsigSec; }
282 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; }
283 StringRef getDynamicStringTable() const { return DynamicStringTable; }
284 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; }
285 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; }
286 const DynRegionInfo &getDynRelrRegion() const { return DynRelrRegion; }
287 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; }
288 const Elf_Hash *getHashTable() const { return HashTable; }
289 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; }
292 template <class ELFT>
293 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const {
294 StringRef StrTable, SymtabName;
296 Elf_Sym_Range Syms(nullptr, nullptr);
297 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
299 StrTable = DynamicStringTable;
300 Syms = dynamic_symbols();
301 SymtabName = DynSymtabName;
302 if (DynSymRegion.Addr)
303 Entries = DynSymRegion.Size / DynSymRegion.EntSize;
307 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec));
308 Syms = unwrapOrError(Obj->symbols(DotSymtabSec));
309 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec));
310 Entries = DotSymtabSec->getEntityCount();
312 if (Syms.begin() == Syms.end())
314 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries);
315 for (const auto &Sym : Syms)
316 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic);
319 template <class ELFT> class MipsGOTParser;
321 template <typename ELFT> class DumpStyle {
323 using Elf_Shdr = typename ELFT::Shdr;
324 using Elf_Sym = typename ELFT::Sym;
326 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {}
327 virtual ~DumpStyle() = default;
329 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0;
330 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0;
331 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0;
332 virtual void printSectionHeaders(const ELFFile<ELFT> *Obj) = 0;
333 virtual void printSymbols(const ELFFile<ELFT> *Obj, bool PrintSymbols,
334 bool PrintDynamicSymbols) = 0;
335 virtual void printHashSymbols(const ELFFile<ELFT> *Obj) {}
336 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0;
337 virtual void printSymtabMessage(const ELFFile<ELFT> *Obj, StringRef Name,
339 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol,
340 const Elf_Sym *FirstSym, StringRef StrTable,
342 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj,
343 bool PrintProgramHeaders,
344 cl::boolOrDefault PrintSectionMapping) = 0;
345 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0;
346 virtual void printCGProfile(const ELFFile<ELFT> *Obj) = 0;
347 virtual void printAddrsig(const ELFFile<ELFT> *Obj) = 0;
348 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0;
349 virtual void printELFLinkerOptions(const ELFFile<ELFT> *Obj) = 0;
350 virtual void printMipsGOT(const MipsGOTParser<ELFT> &Parser) = 0;
351 virtual void printMipsPLT(const MipsGOTParser<ELFT> &Parser) = 0;
352 const ELFDumper<ELFT> *dumper() const { return Dumper; }
355 const ELFDumper<ELFT> *Dumper;
358 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> {
359 formatted_raw_ostream OS;
362 TYPEDEF_ELF_TYPES(ELFT)
364 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
365 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {}
367 void printFileHeaders(const ELFO *Obj) override;
368 void printGroupSections(const ELFFile<ELFT> *Obj) override;
369 void printRelocations(const ELFO *Obj) override;
370 void printSectionHeaders(const ELFO *Obj) override;
371 void printSymbols(const ELFO *Obj, bool PrintSymbols,
372 bool PrintDynamicSymbols) override;
373 void printHashSymbols(const ELFO *Obj) override;
374 void printDynamicRelocations(const ELFO *Obj) override;
375 void printSymtabMessage(const ELFO *Obj, StringRef Name,
376 size_t Offset) override;
377 void printProgramHeaders(const ELFO *Obj, bool PrintProgramHeaders,
378 cl::boolOrDefault PrintSectionMapping) override;
379 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
380 void printCGProfile(const ELFFile<ELFT> *Obj) override;
381 void printAddrsig(const ELFFile<ELFT> *Obj) override;
382 void printNotes(const ELFFile<ELFT> *Obj) override;
383 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override;
384 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override;
385 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override;
392 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {}
393 Field(unsigned Col) : Column(Col) {}
396 template <typename T, typename TEnum>
397 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) {
398 for (const auto &EnumItem : EnumValues)
399 if (EnumItem.Value == Value)
400 return EnumItem.AltName;
401 return to_hexString(Value, false);
404 template <typename T, typename TEnum>
405 std::string printFlags(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues,
406 TEnum EnumMask1 = {}, TEnum EnumMask2 = {},
407 TEnum EnumMask3 = {}) {
409 for (const auto &Flag : EnumValues) {
414 if (Flag.Value & EnumMask1)
415 EnumMask = EnumMask1;
416 else if (Flag.Value & EnumMask2)
417 EnumMask = EnumMask2;
418 else if (Flag.Value & EnumMask3)
419 EnumMask = EnumMask3;
420 bool IsEnum = (Flag.Value & EnumMask) != 0;
421 if ((!IsEnum && (Value & Flag.Value) == Flag.Value) ||
422 (IsEnum && (Value & EnumMask) == Flag.Value)) {
431 formatted_raw_ostream &printField(struct Field F) {
433 OS.PadToColumn(F.Column);
438 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym,
439 StringRef StrTable, uint32_t Bucket);
440 void printRelocHeader(unsigned SType);
441 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
442 const Elf_Rela &R, bool IsRela);
443 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
444 StringRef StrTable, bool IsDynamic) override;
445 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol,
446 const Elf_Sym *FirstSym);
447 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela);
448 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
449 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
450 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
451 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
452 void printProgramHeaders(const ELFO *Obj);
453 void printSectionMapping(const ELFO *Obj);
456 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> {
458 TYPEDEF_ELF_TYPES(ELFT)
460 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
461 : DumpStyle<ELFT>(Dumper), W(W) {}
463 void printFileHeaders(const ELFO *Obj) override;
464 void printGroupSections(const ELFFile<ELFT> *Obj) override;
465 void printRelocations(const ELFO *Obj) override;
466 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj);
467 void printSectionHeaders(const ELFO *Obj) override;
468 void printSymbols(const ELFO *Obj, bool PrintSymbols,
469 bool PrintDynamicSymbols) override;
470 void printDynamicRelocations(const ELFO *Obj) override;
471 void printProgramHeaders(const ELFO *Obj, bool PrintProgramHeaders,
472 cl::boolOrDefault PrintSectionMapping) override;
473 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
474 void printCGProfile(const ELFFile<ELFT> *Obj) override;
475 void printAddrsig(const ELFFile<ELFT> *Obj) override;
476 void printNotes(const ELFFile<ELFT> *Obj) override;
477 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override;
478 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override;
479 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override;
482 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab);
483 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel);
484 void printSymbols(const ELFO *Obj);
485 void printDynamicSymbols(const ELFO *Obj);
486 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
487 StringRef StrTable, bool IsDynamic) override;
488 void printProgramHeaders(const ELFO *Obj);
489 void printSectionMapping(const ELFO *Obj) {}
494 } // end anonymous namespace
498 template <class ELFT>
499 static std::error_code createELFDumper(const ELFObjectFile<ELFT> *Obj,
500 ScopedPrinter &Writer,
501 std::unique_ptr<ObjDumper> &Result) {
502 Result.reset(new ELFDumper<ELFT>(Obj, Writer));
503 return readobj_error::success;
506 std::error_code createELFDumper(const object::ObjectFile *Obj,
507 ScopedPrinter &Writer,
508 std::unique_ptr<ObjDumper> &Result) {
509 // Little-endian 32-bit
510 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
511 return createELFDumper(ELFObj, Writer, Result);
514 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
515 return createELFDumper(ELFObj, Writer, Result);
517 // Little-endian 64-bit
518 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
519 return createELFDumper(ELFObj, Writer, Result);
522 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
523 return createELFDumper(ELFObj, Writer, Result);
525 return readobj_error::unsupported_obj_file_format;
528 } // end namespace llvm
530 // Iterate through the versions needed section, and place each Elf_Vernaux
531 // in the VersionMap according to its index.
532 template <class ELFT>
533 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
534 unsigned vn_size = sec->sh_size; // Size of section in bytes
535 unsigned vn_count = sec->sh_info; // Number of Verneed entries
536 const char *sec_start = (const char *)ObjF->getELFFile()->base() + sec->sh_offset;
537 const char *sec_end = sec_start + vn_size;
538 // The first Verneed entry is at the start of the section.
539 const char *p = sec_start;
540 for (unsigned i = 0; i < vn_count; i++) {
541 if (p + sizeof(Elf_Verneed) > sec_end)
542 report_fatal_error("Section ended unexpectedly while scanning "
543 "version needed records.");
544 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
545 if (vn->vn_version != ELF::VER_NEED_CURRENT)
546 report_fatal_error("Unexpected verneed version");
547 // Iterate through the Vernaux entries
548 const char *paux = p + vn->vn_aux;
549 for (unsigned j = 0; j < vn->vn_cnt; j++) {
550 if (paux + sizeof(Elf_Vernaux) > sec_end)
551 report_fatal_error("Section ended unexpected while scanning auxiliary "
552 "version needed records.");
553 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
554 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
555 if (index >= VersionMap.size())
556 VersionMap.resize(index + 1);
557 VersionMap[index] = VersionMapEntry(vna);
558 paux += vna->vna_next;
564 // Iterate through the version definitions, and place each Elf_Verdef
565 // in the VersionMap according to its index.
566 template <class ELFT>
567 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
568 unsigned vd_size = sec->sh_size; // Size of section in bytes
569 unsigned vd_count = sec->sh_info; // Number of Verdef entries
570 const char *sec_start = (const char *)ObjF->getELFFile()->base() + sec->sh_offset;
571 const char *sec_end = sec_start + vd_size;
572 // The first Verdef entry is at the start of the section.
573 const char *p = sec_start;
574 for (unsigned i = 0; i < vd_count; i++) {
575 if (p + sizeof(Elf_Verdef) > sec_end)
576 report_fatal_error("Section ended unexpectedly while scanning "
577 "version definitions.");
578 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
579 if (vd->vd_version != ELF::VER_DEF_CURRENT)
580 report_fatal_error("Unexpected verdef version");
581 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
582 if (index >= VersionMap.size())
583 VersionMap.resize(index + 1);
584 VersionMap[index] = VersionMapEntry(vd);
589 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const {
590 // If there is no dynamic symtab or version table, there is nothing to do.
591 if (!DynSymRegion.Addr || !dot_gnu_version_sec)
594 // Has the VersionMap already been loaded?
595 if (!VersionMap.empty())
598 // The first two version indexes are reserved.
599 // Index 0 is LOCAL, index 1 is GLOBAL.
600 VersionMap.push_back(VersionMapEntry());
601 VersionMap.push_back(VersionMapEntry());
603 if (dot_gnu_version_d_sec)
604 LoadVersionDefs(dot_gnu_version_d_sec);
606 if (dot_gnu_version_r_sec)
607 LoadVersionNeeds(dot_gnu_version_r_sec);
610 template <typename ELFO, class ELFT>
611 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
612 const typename ELFO::Elf_Shdr *Sec,
614 DictScope SS(W, "Version symbols");
617 StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
618 W.printNumber("Section Name", Name, Sec->sh_name);
619 W.printHex("Address", Sec->sh_addr);
620 W.printHex("Offset", Sec->sh_offset);
621 W.printNumber("Link", Sec->sh_link);
623 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset;
624 StringRef StrTable = Dumper->getDynamicStringTable();
626 // Same number of entries in the dynamic symbol table (DT_SYMTAB).
627 ListScope Syms(W, "Symbols");
628 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) {
629 DictScope S(W, "Symbol");
630 std::string FullSymbolName =
631 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */);
632 W.printNumber("Version", *P);
633 W.printString("Name", FullSymbolName);
634 P += sizeof(typename ELFO::Elf_Half);
638 static const EnumEntry<unsigned> SymVersionFlags[] = {
639 {"Base", "BASE", VER_FLG_BASE},
640 {"Weak", "WEAK", VER_FLG_WEAK},
641 {"Info", "INFO", VER_FLG_INFO}};
643 template <typename ELFO, class ELFT>
644 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper,
646 const typename ELFO::Elf_Shdr *Sec,
648 using VerDef = typename ELFO::Elf_Verdef;
649 using VerdAux = typename ELFO::Elf_Verdaux;
651 DictScope SD(W, "SHT_GNU_verdef");
655 const uint8_t *SecStartAddress =
656 (const uint8_t *)Obj->base() + Sec->sh_offset;
657 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size;
658 const uint8_t *P = SecStartAddress;
659 const typename ELFO::Elf_Shdr *StrTab =
660 unwrapOrError(Obj->getSection(Sec->sh_link));
662 unsigned VerDefsNum = Sec->sh_info;
663 while (VerDefsNum--) {
664 if (P + sizeof(VerDef) > SecEndAddress)
665 report_fatal_error("invalid offset in the section");
667 auto *VD = reinterpret_cast<const VerDef *>(P);
668 DictScope Def(W, "Definition");
669 W.printNumber("Version", VD->vd_version);
670 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags));
671 W.printNumber("Index", VD->vd_ndx);
672 W.printNumber("Hash", VD->vd_hash);
673 W.printString("Name",
674 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
675 VD->getAux()->vda_name)));
677 report_fatal_error("at least one definition string must exist");
679 report_fatal_error("more than one predecessor is not expected");
681 if (VD->vd_cnt == 2) {
682 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next;
683 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux);
684 W.printString("Predecessor",
685 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
693 template <typename ELFO, class ELFT>
694 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper,
696 const typename ELFO::Elf_Shdr *Sec,
698 using VerNeed = typename ELFO::Elf_Verneed;
699 using VernAux = typename ELFO::Elf_Vernaux;
701 DictScope SD(W, "SHT_GNU_verneed");
705 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset;
706 const typename ELFO::Elf_Shdr *StrTab =
707 unwrapOrError(Obj->getSection(Sec->sh_link));
709 const uint8_t *P = SecData;
710 unsigned VerNeedNum = Sec->sh_info;
711 for (unsigned I = 0; I < VerNeedNum; ++I) {
712 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P);
713 DictScope Entry(W, "Dependency");
714 W.printNumber("Version", Need->vn_version);
715 W.printNumber("Count", Need->vn_cnt);
716 W.printString("FileName",
717 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
720 const uint8_t *PAux = P + Need->vn_aux;
721 for (unsigned J = 0; J < Need->vn_cnt; ++J) {
722 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux);
723 DictScope Entry(W, "Entry");
724 W.printNumber("Hash", Aux->vna_hash);
725 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags));
726 W.printNumber("Index", Aux->vna_other);
727 W.printString("Name",
728 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
730 PAux += Aux->vna_next;
736 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() {
737 // Dump version symbol section.
738 printVersionSymbolSection(this, ObjF->getELFFile(), dot_gnu_version_sec, W);
740 // Dump version definition section.
741 printVersionDefinitionSection(this, ObjF->getELFFile(), dot_gnu_version_d_sec, W);
743 // Dump version dependency section.
744 printVersionDependencySection(this, ObjF->getELFFile(), dot_gnu_version_r_sec, W);
747 template <typename ELFT>
748 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab,
750 bool &IsDefault) const {
751 // This is a dynamic symbol. Look in the GNU symbol version table.
752 if (!dot_gnu_version_sec) {
755 return StringRef("");
758 // Determine the position in the symbol table of this entry.
759 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) -
760 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) /
763 // Get the corresponding version index entry
764 const Elf_Versym *vs = unwrapOrError(
765 ObjF->getELFFile()->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index));
766 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
768 // Special markers for unversioned symbols.
769 if (version_index == ELF::VER_NDX_LOCAL ||
770 version_index == ELF::VER_NDX_GLOBAL) {
772 return StringRef("");
775 // Lookup this symbol in the version table
777 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
778 reportError("Invalid version entry");
779 const VersionMapEntry &entry = VersionMap[version_index];
781 // Get the version name string
783 if (entry.isVerdef()) {
784 // The first Verdaux entry holds the name.
785 name_offset = entry.getVerdef()->getAux()->vda_name;
786 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
788 name_offset = entry.getVernaux()->vna_name;
791 if (name_offset >= StrTab.size())
792 reportError("Invalid string offset");
793 return StringRef(StrTab.data() + name_offset);
796 static std::string maybeDemangle(StringRef Name) {
797 return opts::Demangle ? demangle(Name) : Name.str();
800 template <typename ELFT>
801 std::string ELFDumper<ELFT>::getStaticSymbolName(uint32_t Index) const {
802 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
803 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec));
804 Elf_Sym_Range Syms = unwrapOrError(Obj->symbols(DotSymtabSec));
805 if (Index >= Syms.size())
806 reportError("Invalid symbol index");
807 const Elf_Sym *Sym = &Syms[Index];
808 return maybeDemangle(unwrapOrError(Sym->getName(StrTable)));
811 template <typename ELFT>
812 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol,
814 bool IsDynamic) const {
815 std::string SymbolName =
816 maybeDemangle(unwrapOrError(Symbol->getName(StrTable)));
818 if (SymbolName.empty() && Symbol->getType() == ELF::STT_SECTION) {
819 unsigned SectionIndex;
820 StringRef SectionName;
822 unwrapOrError(ObjF->getELFFile()->symbols(DotSymtabSec));
823 getSectionNameIndex(Symbol, Syms.begin(), SectionName, SectionIndex);
831 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault);
832 if (!Version.empty()) {
833 SymbolName += (IsDefault ? "@@" : "@");
834 SymbolName += Version;
839 template <typename ELFT>
840 void ELFDumper<ELFT>::getSectionNameIndex(const Elf_Sym *Symbol,
841 const Elf_Sym *FirstSym,
842 StringRef &SectionName,
843 unsigned &SectionIndex) const {
844 SectionIndex = Symbol->st_shndx;
845 if (Symbol->isUndefined())
846 SectionName = "Undefined";
847 else if (Symbol->isProcessorSpecific())
848 SectionName = "Processor Specific";
849 else if (Symbol->isOSSpecific())
850 SectionName = "Operating System Specific";
851 else if (Symbol->isAbsolute())
852 SectionName = "Absolute";
853 else if (Symbol->isCommon())
854 SectionName = "Common";
855 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX)
856 SectionName = "Reserved";
858 if (SectionIndex == SHN_XINDEX)
859 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>(
860 Symbol, FirstSym, ShndxTable));
861 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
862 const typename ELFT::Shdr *Sec =
863 unwrapOrError(Obj->getSection(SectionIndex));
864 SectionName = unwrapOrError(Obj->getSectionName(Sec));
868 template <class ELFO>
869 static const typename ELFO::Elf_Shdr *
870 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) {
871 for (const auto &Shdr : unwrapOrError(Obj->sections()))
872 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0)
877 template <class ELFO>
878 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj,
880 for (const auto &Shdr : unwrapOrError(Obj.sections())) {
881 if (Name == unwrapOrError(Obj.getSectionName(&Shdr)))
887 static const EnumEntry<unsigned> ElfClass[] = {
888 {"None", "none", ELF::ELFCLASSNONE},
889 {"32-bit", "ELF32", ELF::ELFCLASS32},
890 {"64-bit", "ELF64", ELF::ELFCLASS64},
893 static const EnumEntry<unsigned> ElfDataEncoding[] = {
894 {"None", "none", ELF::ELFDATANONE},
895 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB},
896 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB},
899 static const EnumEntry<unsigned> ElfObjectFileType[] = {
900 {"None", "NONE (none)", ELF::ET_NONE},
901 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL},
902 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC},
903 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN},
904 {"Core", "CORE (Core file)", ELF::ET_CORE},
907 static const EnumEntry<unsigned> ElfOSABI[] = {
908 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE},
909 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX},
910 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD},
911 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX},
912 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD},
913 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS},
914 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX},
915 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX},
916 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD},
917 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64},
918 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO},
919 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD},
920 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS},
921 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK},
922 {"AROS", "AROS", ELF::ELFOSABI_AROS},
923 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS},
924 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI},
925 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE}
928 static const EnumEntry<unsigned> AMDGPUElfOSABI[] = {
929 {"AMDGPU_HSA", "AMDGPU - HSA", ELF::ELFOSABI_AMDGPU_HSA},
930 {"AMDGPU_PAL", "AMDGPU - PAL", ELF::ELFOSABI_AMDGPU_PAL},
931 {"AMDGPU_MESA3D", "AMDGPU - MESA3D", ELF::ELFOSABI_AMDGPU_MESA3D}
934 static const EnumEntry<unsigned> ARMElfOSABI[] = {
935 {"ARM", "ARM", ELF::ELFOSABI_ARM}
938 static const EnumEntry<unsigned> C6000ElfOSABI[] = {
939 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI},
940 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX}
943 static const EnumEntry<unsigned> ElfMachineType[] = {
944 ENUM_ENT(EM_NONE, "None"),
945 ENUM_ENT(EM_M32, "WE32100"),
946 ENUM_ENT(EM_SPARC, "Sparc"),
947 ENUM_ENT(EM_386, "Intel 80386"),
948 ENUM_ENT(EM_68K, "MC68000"),
949 ENUM_ENT(EM_88K, "MC88000"),
950 ENUM_ENT(EM_IAMCU, "EM_IAMCU"),
951 ENUM_ENT(EM_860, "Intel 80860"),
952 ENUM_ENT(EM_MIPS, "MIPS R3000"),
953 ENUM_ENT(EM_S370, "IBM System/370"),
954 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"),
955 ENUM_ENT(EM_PARISC, "HPPA"),
956 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"),
957 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"),
958 ENUM_ENT(EM_960, "Intel 80960"),
959 ENUM_ENT(EM_PPC, "PowerPC"),
960 ENUM_ENT(EM_PPC64, "PowerPC64"),
961 ENUM_ENT(EM_S390, "IBM S/390"),
962 ENUM_ENT(EM_SPU, "SPU"),
963 ENUM_ENT(EM_V800, "NEC V800 series"),
964 ENUM_ENT(EM_FR20, "Fujistsu FR20"),
965 ENUM_ENT(EM_RH32, "TRW RH-32"),
966 ENUM_ENT(EM_RCE, "Motorola RCE"),
967 ENUM_ENT(EM_ARM, "ARM"),
968 ENUM_ENT(EM_ALPHA, "EM_ALPHA"),
969 ENUM_ENT(EM_SH, "Hitachi SH"),
970 ENUM_ENT(EM_SPARCV9, "Sparc v9"),
971 ENUM_ENT(EM_TRICORE, "Siemens Tricore"),
972 ENUM_ENT(EM_ARC, "ARC"),
973 ENUM_ENT(EM_H8_300, "Hitachi H8/300"),
974 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"),
975 ENUM_ENT(EM_H8S, "Hitachi H8S"),
976 ENUM_ENT(EM_H8_500, "Hitachi H8/500"),
977 ENUM_ENT(EM_IA_64, "Intel IA-64"),
978 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"),
979 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"),
980 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"),
981 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"),
982 ENUM_ENT(EM_PCP, "Siemens PCP"),
983 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"),
984 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"),
985 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"),
986 ENUM_ENT(EM_ME16, "Toyota ME16 processor"),
987 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"),
988 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"),
989 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"),
990 ENUM_ENT(EM_PDSP, "Sony DSP processor"),
991 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"),
992 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"),
993 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"),
994 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"),
995 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"),
996 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"),
997 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"),
998 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"),
999 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"),
1000 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"),
1001 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"),
1002 ENUM_ENT(EM_VAX, "Digital VAX"),
1003 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"),
1004 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"),
1005 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"),
1006 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"),
1007 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"),
1008 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"),
1009 ENUM_ENT(EM_PRISM, "Vitesse Prism"),
1010 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"),
1011 ENUM_ENT(EM_FR30, "Fujitsu FR30"),
1012 ENUM_ENT(EM_D10V, "Mitsubishi D10V"),
1013 ENUM_ENT(EM_D30V, "Mitsubishi D30V"),
1014 ENUM_ENT(EM_V850, "NEC v850"),
1015 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"),
1016 ENUM_ENT(EM_MN10300, "Matsushita MN10300"),
1017 ENUM_ENT(EM_MN10200, "Matsushita MN10200"),
1018 ENUM_ENT(EM_PJ, "picoJava"),
1019 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"),
1020 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"),
1021 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"),
1022 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"),
1023 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"),
1024 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"),
1025 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"),
1026 ENUM_ENT(EM_SNP1K, "EM_SNP1K"),
1027 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"),
1028 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"),
1029 ENUM_ENT(EM_MAX, "MAX Processor"),
1030 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"),
1031 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"),
1032 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"),
1033 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"),
1034 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"),
1035 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"),
1036 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"),
1037 ENUM_ENT(EM_UNICORE, "Unicore"),
1038 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"),
1039 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"),
1040 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"),
1041 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"),
1042 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"),
1043 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"),
1044 ENUM_ENT(EM_M16C, "Renesas M16C"),
1045 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"),
1046 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"),
1047 ENUM_ENT(EM_M32C, "Renesas M32C"),
1048 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"),
1049 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"),
1050 ENUM_ENT(EM_SHARC, "EM_SHARC"),
1051 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"),
1052 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"),
1053 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"),
1054 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"),
1055 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"),
1056 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"),
1057 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"),
1058 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"),
1059 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"),
1060 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"),
1061 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"),
1062 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"),
1063 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"),
1064 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"),
1065 ENUM_ENT(EM_8051, "Intel 8051 and variants"),
1066 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"),
1067 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"),
1068 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"),
1069 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"),
1070 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"),
1071 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"),
1072 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"),
1073 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"),
1074 ENUM_ENT(EM_RX, "Renesas RX"),
1075 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"),
1076 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"),
1077 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"),
1078 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"),
1079 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"),
1080 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"),
1081 ENUM_ENT(EM_L10M, "EM_L10M"),
1082 ENUM_ENT(EM_K10M, "EM_K10M"),
1083 ENUM_ENT(EM_AARCH64, "AArch64"),
1084 ENUM_ENT(EM_AVR32, "Atmel Corporation 32-bit microprocessor family"),
1085 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"),
1086 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"),
1087 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"),
1088 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"),
1089 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"),
1090 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"),
1091 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"),
1092 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"),
1093 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"),
1094 ENUM_ENT(EM_OPEN8, "EM_OPEN8"),
1095 ENUM_ENT(EM_RL78, "Renesas RL78"),
1096 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"),
1097 ENUM_ENT(EM_78KOR, "EM_78KOR"),
1098 ENUM_ENT(EM_56800EX, "EM_56800EX"),
1099 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"),
1100 ENUM_ENT(EM_RISCV, "RISC-V"),
1101 ENUM_ENT(EM_LANAI, "EM_LANAI"),
1102 ENUM_ENT(EM_BPF, "EM_BPF"),
1105 static const EnumEntry<unsigned> ElfSymbolBindings[] = {
1106 {"Local", "LOCAL", ELF::STB_LOCAL},
1107 {"Global", "GLOBAL", ELF::STB_GLOBAL},
1108 {"Weak", "WEAK", ELF::STB_WEAK},
1109 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}};
1111 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = {
1112 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT},
1113 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL},
1114 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN},
1115 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}};
1117 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = {
1118 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL }
1121 static const char *getGroupType(uint32_t Flag) {
1122 if (Flag & ELF::GRP_COMDAT)
1128 static const EnumEntry<unsigned> ElfSectionFlags[] = {
1129 ENUM_ENT(SHF_WRITE, "W"),
1130 ENUM_ENT(SHF_ALLOC, "A"),
1131 ENUM_ENT(SHF_EXCLUDE, "E"),
1132 ENUM_ENT(SHF_EXECINSTR, "X"),
1133 ENUM_ENT(SHF_MERGE, "M"),
1134 ENUM_ENT(SHF_STRINGS, "S"),
1135 ENUM_ENT(SHF_INFO_LINK, "I"),
1136 ENUM_ENT(SHF_LINK_ORDER, "L"),
1137 ENUM_ENT(SHF_OS_NONCONFORMING, "o"),
1138 ENUM_ENT(SHF_GROUP, "G"),
1139 ENUM_ENT(SHF_TLS, "T"),
1140 ENUM_ENT(SHF_MASKOS, "o"),
1141 ENUM_ENT(SHF_MASKPROC, "p"),
1142 ENUM_ENT_1(SHF_COMPRESSED),
1145 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = {
1146 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
1147 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION)
1150 static const EnumEntry<unsigned> ElfARMSectionFlags[] = {
1151 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE)
1154 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = {
1155 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL)
1158 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = {
1159 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES),
1160 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ),
1161 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ),
1162 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP),
1163 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ),
1164 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ),
1165 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ),
1166 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING )
1169 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = {
1170 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE)
1173 static std::string getGNUFlags(uint64_t Flags) {
1175 for (auto Entry : ElfSectionFlags) {
1176 uint64_t Flag = Entry.Value & Flags;
1177 Flags &= ~Entry.Value;
1179 case ELF::SHF_WRITE:
1180 case ELF::SHF_ALLOC:
1181 case ELF::SHF_EXECINSTR:
1182 case ELF::SHF_MERGE:
1183 case ELF::SHF_STRINGS:
1184 case ELF::SHF_INFO_LINK:
1185 case ELF::SHF_LINK_ORDER:
1186 case ELF::SHF_OS_NONCONFORMING:
1187 case ELF::SHF_GROUP:
1189 case ELF::SHF_EXCLUDE:
1190 Str += Entry.AltName;
1193 if (Flag & ELF::SHF_MASKOS)
1195 else if (Flag & ELF::SHF_MASKPROC)
1204 static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
1205 // Check potentially overlapped processor-specific
1206 // program header type.
1210 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
1214 case ELF::EM_MIPS_RS3_LE:
1216 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
1217 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
1218 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
1219 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS);
1225 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
1226 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
1227 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
1228 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
1229 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
1230 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
1231 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
1232 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
1234 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
1235 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
1237 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
1238 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
1240 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE);
1241 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED);
1242 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA);
1248 static std::string getElfPtType(unsigned Arch, unsigned Type) {
1250 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL)
1251 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD)
1252 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC)
1253 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP)
1254 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE)
1255 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB)
1256 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR)
1257 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS)
1258 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME)
1259 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND)
1260 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK)
1261 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO)
1263 // All machine specific PT_* types
1266 if (Type == ELF::PT_ARM_EXIDX)
1270 case ELF::EM_MIPS_RS3_LE:
1272 case PT_MIPS_REGINFO:
1274 case PT_MIPS_RTPROC:
1276 case PT_MIPS_OPTIONS:
1278 case PT_MIPS_ABIFLAGS:
1284 return std::string("<unknown>: ") + to_string(format_hex(Type, 1));
1287 static const EnumEntry<unsigned> ElfSegmentFlags[] = {
1288 LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
1289 LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
1290 LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
1293 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
1294 ENUM_ENT(EF_MIPS_NOREORDER, "noreorder"),
1295 ENUM_ENT(EF_MIPS_PIC, "pic"),
1296 ENUM_ENT(EF_MIPS_CPIC, "cpic"),
1297 ENUM_ENT(EF_MIPS_ABI2, "abi2"),
1298 ENUM_ENT(EF_MIPS_32BITMODE, "32bitmode"),
1299 ENUM_ENT(EF_MIPS_FP64, "fp64"),
1300 ENUM_ENT(EF_MIPS_NAN2008, "nan2008"),
1301 ENUM_ENT(EF_MIPS_ABI_O32, "o32"),
1302 ENUM_ENT(EF_MIPS_ABI_O64, "o64"),
1303 ENUM_ENT(EF_MIPS_ABI_EABI32, "eabi32"),
1304 ENUM_ENT(EF_MIPS_ABI_EABI64, "eabi64"),
1305 ENUM_ENT(EF_MIPS_MACH_3900, "3900"),
1306 ENUM_ENT(EF_MIPS_MACH_4010, "4010"),
1307 ENUM_ENT(EF_MIPS_MACH_4100, "4100"),
1308 ENUM_ENT(EF_MIPS_MACH_4650, "4650"),
1309 ENUM_ENT(EF_MIPS_MACH_4120, "4120"),
1310 ENUM_ENT(EF_MIPS_MACH_4111, "4111"),
1311 ENUM_ENT(EF_MIPS_MACH_SB1, "sb1"),
1312 ENUM_ENT(EF_MIPS_MACH_OCTEON, "octeon"),
1313 ENUM_ENT(EF_MIPS_MACH_XLR, "xlr"),
1314 ENUM_ENT(EF_MIPS_MACH_OCTEON2, "octeon2"),
1315 ENUM_ENT(EF_MIPS_MACH_OCTEON3, "octeon3"),
1316 ENUM_ENT(EF_MIPS_MACH_5400, "5400"),
1317 ENUM_ENT(EF_MIPS_MACH_5900, "5900"),
1318 ENUM_ENT(EF_MIPS_MACH_5500, "5500"),
1319 ENUM_ENT(EF_MIPS_MACH_9000, "9000"),
1320 ENUM_ENT(EF_MIPS_MACH_LS2E, "loongson-2e"),
1321 ENUM_ENT(EF_MIPS_MACH_LS2F, "loongson-2f"),
1322 ENUM_ENT(EF_MIPS_MACH_LS3A, "loongson-3a"),
1323 ENUM_ENT(EF_MIPS_MICROMIPS, "micromips"),
1324 ENUM_ENT(EF_MIPS_ARCH_ASE_M16, "mips16"),
1325 ENUM_ENT(EF_MIPS_ARCH_ASE_MDMX, "mdmx"),
1326 ENUM_ENT(EF_MIPS_ARCH_1, "mips1"),
1327 ENUM_ENT(EF_MIPS_ARCH_2, "mips2"),
1328 ENUM_ENT(EF_MIPS_ARCH_3, "mips3"),
1329 ENUM_ENT(EF_MIPS_ARCH_4, "mips4"),
1330 ENUM_ENT(EF_MIPS_ARCH_5, "mips5"),
1331 ENUM_ENT(EF_MIPS_ARCH_32, "mips32"),
1332 ENUM_ENT(EF_MIPS_ARCH_64, "mips64"),
1333 ENUM_ENT(EF_MIPS_ARCH_32R2, "mips32r2"),
1334 ENUM_ENT(EF_MIPS_ARCH_64R2, "mips64r2"),
1335 ENUM_ENT(EF_MIPS_ARCH_32R6, "mips32r6"),
1336 ENUM_ENT(EF_MIPS_ARCH_64R6, "mips64r6")
1339 static const EnumEntry<unsigned> ElfHeaderAMDGPUFlags[] = {
1340 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_NONE),
1341 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R600),
1342 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R630),
1343 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RS880),
1344 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV670),
1345 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV710),
1346 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV730),
1347 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV770),
1348 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CEDAR),
1349 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CYPRESS),
1350 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_JUNIPER),
1351 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_REDWOOD),
1352 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_SUMO),
1353 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_BARTS),
1354 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAICOS),
1355 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAYMAN),
1356 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_TURKS),
1357 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX600),
1358 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX601),
1359 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX700),
1360 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX701),
1361 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX702),
1362 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX703),
1363 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX704),
1364 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX801),
1365 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX802),
1366 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX803),
1367 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX810),
1368 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX900),
1369 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX902),
1370 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX904),
1371 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX906),
1372 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX909),
1373 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_XNACK),
1374 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_SRAM_ECC)
1377 static const EnumEntry<unsigned> ElfHeaderRISCVFlags[] = {
1378 ENUM_ENT(EF_RISCV_RVC, "RVC"),
1379 ENUM_ENT(EF_RISCV_FLOAT_ABI_SINGLE, "single-float ABI"),
1380 ENUM_ENT(EF_RISCV_FLOAT_ABI_DOUBLE, "double-float ABI"),
1381 ENUM_ENT(EF_RISCV_FLOAT_ABI_QUAD, "quad-float ABI"),
1382 ENUM_ENT(EF_RISCV_RVE, "RVE")
1385 static const EnumEntry<unsigned> ElfSymOtherFlags[] = {
1386 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL),
1387 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN),
1388 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED)
1391 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = {
1392 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1393 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1394 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC),
1395 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS)
1398 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = {
1399 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1400 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1401 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16)
1404 static const char *getElfMipsOptionsOdkType(unsigned Odk) {
1406 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL);
1407 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO);
1408 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS);
1409 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD);
1410 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH);
1411 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL);
1412 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS);
1413 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND);
1414 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR);
1415 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP);
1416 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT);
1417 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE);
1423 template <typename ELFT>
1424 ELFDumper<ELFT>::ELFDumper(const object::ELFObjectFile<ELFT> *ObjF,
1425 ScopedPrinter &Writer)
1426 : ObjDumper(Writer), ObjF(ObjF) {
1427 SmallVector<const Elf_Phdr *, 4> LoadSegments;
1428 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
1429 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
1430 if (Phdr.p_type == ELF::PT_DYNAMIC) {
1431 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn));
1434 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0)
1436 LoadSegments.push_back(&Phdr);
1439 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
1440 switch (Sec.sh_type) {
1441 case ELF::SHT_SYMTAB:
1442 if (DotSymtabSec != nullptr)
1443 reportError("Multiple SHT_SYMTAB");
1444 DotSymtabSec = &Sec;
1446 case ELF::SHT_DYNSYM:
1447 if (DynSymRegion.Size)
1448 reportError("Multiple SHT_DYNSYM");
1449 DynSymRegion = createDRIFrom(&Sec);
1450 // This is only used (if Elf_Shdr present)for naming section in GNU style
1451 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec));
1452 DynamicStringTable = unwrapOrError(Obj->getStringTableForSymtab(Sec));
1454 case ELF::SHT_SYMTAB_SHNDX:
1455 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec));
1457 case ELF::SHT_GNU_versym:
1458 if (dot_gnu_version_sec != nullptr)
1459 reportError("Multiple SHT_GNU_versym");
1460 dot_gnu_version_sec = &Sec;
1462 case ELF::SHT_GNU_verdef:
1463 if (dot_gnu_version_d_sec != nullptr)
1464 reportError("Multiple SHT_GNU_verdef");
1465 dot_gnu_version_d_sec = &Sec;
1467 case ELF::SHT_GNU_verneed:
1468 if (dot_gnu_version_r_sec != nullptr)
1469 reportError("Multiple SHT_GNU_verneed");
1470 dot_gnu_version_r_sec = &Sec;
1472 case ELF::SHT_LLVM_CALL_GRAPH_PROFILE:
1473 if (DotCGProfileSec != nullptr)
1474 reportError("Multiple .llvm.call-graph-profile");
1475 DotCGProfileSec = &Sec;
1477 case ELF::SHT_LLVM_ADDRSIG:
1478 if (DotAddrsigSec != nullptr)
1479 reportError("Multiple .llvm_addrsig");
1480 DotAddrsigSec = &Sec;
1485 parseDynamicTable(LoadSegments);
1487 if (opts::Output == opts::GNU)
1488 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this));
1490 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this));
1493 template <typename ELFT>
1494 void ELFDumper<ELFT>::parseDynamicTable(
1495 ArrayRef<const Elf_Phdr *> LoadSegments) {
1496 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * {
1497 auto MappedAddrOrError = ObjF->getELFFile()->toMappedAddr(VAddr);
1498 if (!MappedAddrOrError)
1499 report_fatal_error(MappedAddrOrError.takeError());
1500 return MappedAddrOrError.get();
1503 uint64_t SONameOffset = 0;
1504 const char *StringTableBegin = nullptr;
1505 uint64_t StringTableSize = 0;
1506 for (const Elf_Dyn &Dyn : dynamic_table()) {
1507 switch (Dyn.d_tag) {
1510 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr()));
1512 case ELF::DT_GNU_HASH:
1514 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr()));
1516 case ELF::DT_STRTAB:
1517 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr());
1520 StringTableSize = Dyn.getVal();
1522 case ELF::DT_SYMTAB:
1523 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr());
1524 DynSymRegion.EntSize = sizeof(Elf_Sym);
1527 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr());
1529 case ELF::DT_RELASZ:
1530 DynRelaRegion.Size = Dyn.getVal();
1532 case ELF::DT_RELAENT:
1533 DynRelaRegion.EntSize = Dyn.getVal();
1535 case ELF::DT_SONAME:
1536 SONameOffset = Dyn.getVal();
1539 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1542 DynRelRegion.Size = Dyn.getVal();
1544 case ELF::DT_RELENT:
1545 DynRelRegion.EntSize = Dyn.getVal();
1548 case ELF::DT_ANDROID_RELR:
1549 DynRelrRegion.Addr = toMappedAddr(Dyn.getPtr());
1551 case ELF::DT_RELRSZ:
1552 case ELF::DT_ANDROID_RELRSZ:
1553 DynRelrRegion.Size = Dyn.getVal();
1555 case ELF::DT_RELRENT:
1556 case ELF::DT_ANDROID_RELRENT:
1557 DynRelrRegion.EntSize = Dyn.getVal();
1559 case ELF::DT_PLTREL:
1560 if (Dyn.getVal() == DT_REL)
1561 DynPLTRelRegion.EntSize = sizeof(Elf_Rel);
1562 else if (Dyn.getVal() == DT_RELA)
1563 DynPLTRelRegion.EntSize = sizeof(Elf_Rela);
1565 reportError(Twine("unknown DT_PLTREL value of ") +
1566 Twine((uint64_t)Dyn.getVal()));
1568 case ELF::DT_JMPREL:
1569 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1571 case ELF::DT_PLTRELSZ:
1572 DynPLTRelRegion.Size = Dyn.getVal();
1576 if (StringTableBegin)
1577 DynamicStringTable = StringRef(StringTableBegin, StringTableSize);
1579 SOName = getDynamicString(SONameOffset);
1582 template <typename ELFT>
1583 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const {
1584 return DynRelRegion.getAsArrayRef<Elf_Rel>();
1587 template <typename ELFT>
1588 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const {
1589 return DynRelaRegion.getAsArrayRef<Elf_Rela>();
1592 template <typename ELFT>
1593 typename ELFDumper<ELFT>::Elf_Relr_Range ELFDumper<ELFT>::dyn_relrs() const {
1594 return DynRelrRegion.getAsArrayRef<Elf_Relr>();
1597 template <class ELFT>
1598 void ELFDumper<ELFT>::printFileHeaders() {
1599 ELFDumperStyle->printFileHeaders(ObjF->getELFFile());
1602 template <class ELFT>
1603 void ELFDumper<ELFT>::printSectionHeaders() {
1604 ELFDumperStyle->printSectionHeaders(ObjF->getELFFile());
1607 template <class ELFT>
1608 void ELFDumper<ELFT>::printRelocations() {
1609 ELFDumperStyle->printRelocations(ObjF->getELFFile());
1612 template <class ELFT>
1613 void ELFDumper<ELFT>::printProgramHeaders(
1614 bool PrintProgramHeaders, cl::boolOrDefault PrintSectionMapping) {
1615 ELFDumperStyle->printProgramHeaders(ObjF->getELFFile(), PrintProgramHeaders,
1616 PrintSectionMapping);
1619 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() {
1620 ELFDumperStyle->printDynamicRelocations(ObjF->getELFFile());
1623 template <class ELFT>
1624 void ELFDumper<ELFT>::printSymbols(bool PrintSymbols,
1625 bool PrintDynamicSymbols) {
1626 ELFDumperStyle->printSymbols(ObjF->getELFFile(), PrintSymbols,
1627 PrintDynamicSymbols);
1630 template <class ELFT>
1631 void ELFDumper<ELFT>::printHashSymbols() {
1632 ELFDumperStyle->printHashSymbols(ObjF->getELFFile());
1635 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() {
1636 ELFDumperStyle->printHashHistogram(ObjF->getELFFile());
1639 template <class ELFT> void ELFDumper<ELFT>::printCGProfile() {
1640 ELFDumperStyle->printCGProfile(ObjF->getELFFile());
1643 template <class ELFT> void ELFDumper<ELFT>::printNotes() {
1644 ELFDumperStyle->printNotes(ObjF->getELFFile());
1647 template <class ELFT> void ELFDumper<ELFT>::printELFLinkerOptions() {
1648 ELFDumperStyle->printELFLinkerOptions(ObjF->getELFFile());
1651 static const char *getTypeString(unsigned Arch, uint64_t Type) {
1652 #define DYNAMIC_TAG(n, v)
1656 #define HEXAGON_DYNAMIC_TAG(name, value) \
1659 #include "llvm/BinaryFormat/DynamicTags.def"
1660 #undef HEXAGON_DYNAMIC_TAG
1666 #define MIPS_DYNAMIC_TAG(name, value) \
1669 #include "llvm/BinaryFormat/DynamicTags.def"
1670 #undef MIPS_DYNAMIC_TAG
1676 #define PPC64_DYNAMIC_TAG(name, value) \
1679 #include "llvm/BinaryFormat/DynamicTags.def"
1680 #undef PPC64_DYNAMIC_TAG
1686 // Now handle all dynamic tags except the architecture specific ones
1687 #define MIPS_DYNAMIC_TAG(name, value)
1688 #define HEXAGON_DYNAMIC_TAG(name, value)
1689 #define PPC64_DYNAMIC_TAG(name, value)
1690 // Also ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc.
1691 #define DYNAMIC_TAG_MARKER(name, value)
1692 #define DYNAMIC_TAG(name, value) \
1695 #include "llvm/BinaryFormat/DynamicTags.def"
1697 #undef MIPS_DYNAMIC_TAG
1698 #undef HEXAGON_DYNAMIC_TAG
1699 #undef PPC64_DYNAMIC_TAG
1700 #undef DYNAMIC_TAG_MARKER
1701 default: return "unknown";
1705 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
1706 { #enum, prefix##_##enum }
1708 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
1709 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
1710 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
1711 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
1712 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
1713 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
1716 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
1717 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW),
1718 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL),
1719 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP),
1720 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE),
1721 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR),
1722 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST),
1723 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN),
1724 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN),
1725 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT),
1726 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS),
1727 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE),
1728 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB),
1729 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP),
1730 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT),
1731 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE),
1732 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE),
1733 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELPND),
1734 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT),
1735 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF),
1736 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS),
1737 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR),
1738 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED),
1739 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
1740 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
1741 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
1742 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
1745 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
1746 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
1747 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
1748 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
1749 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
1750 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
1751 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
1752 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
1753 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
1754 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
1755 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
1756 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
1757 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
1758 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
1759 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
1760 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
1761 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
1764 #undef LLVM_READOBJ_DT_FLAG_ENT
1766 template <typename T, typename TFlag>
1767 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
1768 using FlagEntry = EnumEntry<TFlag>;
1769 using FlagVector = SmallVector<FlagEntry, 10>;
1770 FlagVector SetFlags;
1772 for (const auto &Flag : Flags) {
1773 if (Flag.Value == 0)
1776 if ((Value & Flag.Value) == Flag.Value)
1777 SetFlags.push_back(Flag);
1780 for (const auto &Flag : SetFlags) {
1781 OS << Flag.Name << " ";
1785 template <class ELFT>
1786 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const {
1787 if (Value >= DynamicStringTable.size())
1788 reportError("Invalid dynamic string table reference");
1789 return StringRef(DynamicStringTable.data() + Value);
1792 static void printLibrary(raw_ostream &OS, const Twine &Tag, const Twine &Name) {
1793 OS << Tag << ": [" << Name << "]";
1796 template <class ELFT>
1797 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) {
1798 raw_ostream &OS = W.getOStream();
1799 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64;
1802 if (Value == DT_REL) {
1805 } else if (Value == DT_RELA) {
1821 case DT_PREINIT_ARRAY:
1828 case DT_MIPS_BASE_ADDRESS:
1829 case DT_MIPS_GOTSYM:
1830 case DT_MIPS_RLD_MAP:
1831 case DT_MIPS_RLD_MAP_REL:
1832 case DT_MIPS_PLTGOT:
1833 case DT_MIPS_OPTIONS:
1834 OS << format(ConvChar, Value);
1840 case DT_MIPS_RLD_VERSION:
1841 case DT_MIPS_LOCAL_GOTNO:
1842 case DT_MIPS_SYMTABNO:
1843 case DT_MIPS_UNREFEXTNO:
1853 case DT_INIT_ARRAYSZ:
1854 case DT_FINI_ARRAYSZ:
1855 case DT_PREINIT_ARRAYSZ:
1856 case DT_ANDROID_RELSZ:
1857 case DT_ANDROID_RELASZ:
1858 OS << Value << " (bytes)";
1861 printLibrary(OS, "Shared library", getDynamicString(Value));
1864 printLibrary(OS, "Library soname", getDynamicString(Value));
1867 printLibrary(OS, "Auxiliary library", getDynamicString(Value));
1870 printLibrary(OS, "Not needed object", getDynamicString(Value));
1873 printLibrary(OS, "Filter library", getDynamicString(Value));
1877 OS << getDynamicString(Value);
1880 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
1883 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
1886 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS);
1889 OS << format(ConvChar, Value);
1894 template <class ELFT>
1895 void ELFDumper<ELFT>::printUnwindInfo() {
1896 DwarfCFIEH::PrinterContext<ELFT> Ctx(W, ObjF);
1897 Ctx.printUnwindInformation();
1902 template <> void ELFDumper<ELF32LE>::printUnwindInfo() {
1903 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile();
1904 const unsigned Machine = Obj->getHeader()->e_machine;
1905 if (Machine == EM_ARM) {
1906 ARM::EHABI::PrinterContext<ELF32LE> Ctx(W, Obj, DotSymtabSec);
1907 Ctx.PrintUnwindInformation();
1909 DwarfCFIEH::PrinterContext<ELF32LE> Ctx(W, ObjF);
1910 Ctx.printUnwindInformation();
1913 } // end anonymous namespace
1915 template <class ELFT>
1916 void ELFDumper<ELFT>::printDynamicTable() {
1917 // A valid .dynamic section contains an array of entries terminated with
1918 // a DT_NULL entry. However, sometimes the section content may continue
1919 // past the DT_NULL entry, so to dump the section correctly, we first find
1920 // the end of the entries by iterating over them.
1922 Elf_Dyn_Range DynTableEntries = dynamic_table();
1923 for (; Size < DynTableEntries.size();)
1924 if (DynTableEntries[Size++].getTag() == DT_NULL)
1930 raw_ostream &OS = W.getOStream();
1931 W.startLine() << "DynamicSection [ (" << Size << " entries)\n";
1933 bool Is64 = ELFT::Is64Bits;
1935 << " Tag" << (Is64 ? " " : " ") << "Type"
1936 << " " << "Name/Value\n";
1937 for (size_t I = 0; I < Size; ++I) {
1938 const Elf_Dyn &Entry = DynTableEntries[I];
1939 uintX_t Tag = Entry.getTag();
1940 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " "
1941 << format("%-21s", getTypeString(ObjF->getELFFile()->getHeader()->e_machine, Tag));
1942 printValue(Tag, Entry.getVal());
1946 W.startLine() << "]\n";
1949 template <class ELFT>
1950 void ELFDumper<ELFT>::printNeededLibraries() {
1951 ListScope D(W, "NeededLibraries");
1953 using LibsTy = std::vector<StringRef>;
1956 for (const auto &Entry : dynamic_table())
1957 if (Entry.d_tag == ELF::DT_NEEDED)
1958 Libs.push_back(getDynamicString(Entry.d_un.d_val));
1960 std::stable_sort(Libs.begin(), Libs.end());
1962 for (const auto &L : Libs)
1963 W.startLine() << L << "\n";
1967 template <typename ELFT>
1968 void ELFDumper<ELFT>::printHashTable() {
1969 DictScope D(W, "HashTable");
1972 W.printNumber("Num Buckets", HashTable->nbucket);
1973 W.printNumber("Num Chains", HashTable->nchain);
1974 W.printList("Buckets", HashTable->buckets());
1975 W.printList("Chains", HashTable->chains());
1978 template <typename ELFT>
1979 void ELFDumper<ELFT>::printGnuHashTable() {
1980 DictScope D(W, "GnuHashTable");
1983 W.printNumber("Num Buckets", GnuHashTable->nbuckets);
1984 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx);
1985 W.printNumber("Num Mask Words", GnuHashTable->maskwords);
1986 W.printNumber("Shift Count", GnuHashTable->shift2);
1987 W.printHexList("Bloom Filter", GnuHashTable->filter());
1988 W.printList("Buckets", GnuHashTable->buckets());
1989 Elf_Sym_Range Syms = dynamic_symbols();
1990 unsigned NumSyms = std::distance(Syms.begin(), Syms.end());
1992 reportError("No dynamic symbol section");
1993 W.printHexList("Values", GnuHashTable->values(NumSyms));
1996 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() {
1997 W.printString("LoadName", SOName);
2000 template <class ELFT>
2001 void ELFDumper<ELFT>::printAttributes() {
2002 W.startLine() << "Attributes not implemented.\n";
2007 template <> void ELFDumper<ELF32LE>::printAttributes() {
2008 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile();
2009 if (Obj->getHeader()->e_machine != EM_ARM) {
2010 W.startLine() << "Attributes not implemented.\n";
2014 DictScope BA(W, "BuildAttributes");
2015 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2016 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES)
2019 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec));
2020 if (Contents[0] != ARMBuildAttrs::Format_Version) {
2021 errs() << "unrecognised FormatVersion: 0x"
2022 << Twine::utohexstr(Contents[0]) << '\n';
2026 W.printHex("FormatVersion", Contents[0]);
2027 if (Contents.size() == 1)
2030 ARMAttributeParser(&W).Parse(Contents, true);
2034 template <class ELFT> class MipsGOTParser {
2036 TYPEDEF_ELF_TYPES(ELFT)
2037 using Entry = typename ELFO::Elf_Addr;
2038 using Entries = ArrayRef<Entry>;
2040 const bool IsStatic;
2041 const ELFO * const Obj;
2043 MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, Elf_Sym_Range DynSyms);
2045 bool hasGot() const { return !GotEntries.empty(); }
2046 bool hasPlt() const { return !PltEntries.empty(); }
2048 uint64_t getGp() const;
2050 const Entry *getGotLazyResolver() const;
2051 const Entry *getGotModulePointer() const;
2052 const Entry *getPltLazyResolver() const;
2053 const Entry *getPltModulePointer() const;
2055 Entries getLocalEntries() const;
2056 Entries getGlobalEntries() const;
2057 Entries getOtherEntries() const;
2058 Entries getPltEntries() const;
2060 uint64_t getGotAddress(const Entry * E) const;
2061 int64_t getGotOffset(const Entry * E) const;
2062 const Elf_Sym *getGotSym(const Entry *E) const;
2064 uint64_t getPltAddress(const Entry * E) const;
2065 const Elf_Sym *getPltSym(const Entry *E) const;
2067 StringRef getPltStrTable() const { return PltStrTable; }
2070 const Elf_Shdr *GotSec;
2074 const Elf_Shdr *PltSec;
2075 const Elf_Shdr *PltRelSec;
2076 const Elf_Shdr *PltSymTable;
2077 Elf_Sym_Range GotDynSyms;
2078 StringRef PltStrTable;
2084 } // end anonymous namespace
2086 template <class ELFT>
2087 MipsGOTParser<ELFT>::MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable,
2088 Elf_Sym_Range DynSyms)
2089 : IsStatic(DynTable.empty()), Obj(Obj), GotSec(nullptr), LocalNum(0),
2090 GlobalNum(0), PltSec(nullptr), PltRelSec(nullptr), PltSymTable(nullptr) {
2091 // See "Global Offset Table" in Chapter 5 in the following document
2092 // for detailed GOT description.
2093 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
2095 // Find static GOT secton.
2097 GotSec = findSectionByName(*Obj, ".got");
2099 reportError("Cannot find .got section");
2101 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec));
2102 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()),
2103 Content.size() / sizeof(Entry));
2104 LocalNum = GotEntries.size();
2108 // Lookup dynamic table tags which define GOT/PLT layouts.
2109 Optional<uint64_t> DtPltGot;
2110 Optional<uint64_t> DtLocalGotNum;
2111 Optional<uint64_t> DtGotSym;
2112 Optional<uint64_t> DtMipsPltGot;
2113 Optional<uint64_t> DtJmpRel;
2114 for (const auto &Entry : DynTable) {
2115 switch (Entry.getTag()) {
2116 case ELF::DT_PLTGOT:
2117 DtPltGot = Entry.getVal();
2119 case ELF::DT_MIPS_LOCAL_GOTNO:
2120 DtLocalGotNum = Entry.getVal();
2122 case ELF::DT_MIPS_GOTSYM:
2123 DtGotSym = Entry.getVal();
2125 case ELF::DT_MIPS_PLTGOT:
2126 DtMipsPltGot = Entry.getVal();
2128 case ELF::DT_JMPREL:
2129 DtJmpRel = Entry.getVal();
2134 // Find dynamic GOT section.
2135 if (DtPltGot || DtLocalGotNum || DtGotSym) {
2137 report_fatal_error("Cannot find PLTGOT dynamic table tag.");
2139 report_fatal_error("Cannot find MIPS_LOCAL_GOTNO dynamic table tag.");
2141 report_fatal_error("Cannot find MIPS_GOTSYM dynamic table tag.");
2143 size_t DynSymTotal = DynSyms.size();
2144 if (*DtGotSym > DynSymTotal)
2145 reportError("MIPS_GOTSYM exceeds a number of dynamic symbols");
2147 GotSec = findNotEmptySectionByAddress(Obj, *DtPltGot);
2149 reportError("There is no not empty GOT section at 0x" +
2150 Twine::utohexstr(*DtPltGot));
2152 LocalNum = *DtLocalGotNum;
2153 GlobalNum = DynSymTotal - *DtGotSym;
2155 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec));
2156 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()),
2157 Content.size() / sizeof(Entry));
2158 GotDynSyms = DynSyms.drop_front(*DtGotSym);
2161 // Find PLT section.
2162 if (DtMipsPltGot || DtJmpRel) {
2164 report_fatal_error("Cannot find MIPS_PLTGOT dynamic table tag.");
2166 report_fatal_error("Cannot find JMPREL dynamic table tag.");
2168 PltSec = findNotEmptySectionByAddress(Obj, *DtMipsPltGot);
2170 report_fatal_error("There is no not empty PLTGOT section at 0x " +
2171 Twine::utohexstr(*DtMipsPltGot));
2173 PltRelSec = findNotEmptySectionByAddress(Obj, *DtJmpRel);
2175 report_fatal_error("There is no not empty RELPLT section at 0x" +
2176 Twine::utohexstr(*DtJmpRel));
2178 ArrayRef<uint8_t> PltContent =
2179 unwrapOrError(Obj->getSectionContents(PltSec));
2180 PltEntries = Entries(reinterpret_cast<const Entry *>(PltContent.data()),
2181 PltContent.size() / sizeof(Entry));
2183 PltSymTable = unwrapOrError(Obj->getSection(PltRelSec->sh_link));
2184 PltStrTable = unwrapOrError(Obj->getStringTableForSymtab(*PltSymTable));
2188 template <class ELFT> uint64_t MipsGOTParser<ELFT>::getGp() const {
2189 return GotSec->sh_addr + 0x7ff0;
2192 template <class ELFT>
2193 const typename MipsGOTParser<ELFT>::Entry *
2194 MipsGOTParser<ELFT>::getGotLazyResolver() const {
2195 return LocalNum > 0 ? &GotEntries[0] : nullptr;
2198 template <class ELFT>
2199 const typename MipsGOTParser<ELFT>::Entry *
2200 MipsGOTParser<ELFT>::getGotModulePointer() const {
2203 const Entry &E = GotEntries[1];
2204 if ((E >> (sizeof(Entry) * 8 - 1)) == 0)
2209 template <class ELFT>
2210 typename MipsGOTParser<ELFT>::Entries
2211 MipsGOTParser<ELFT>::getLocalEntries() const {
2212 size_t Skip = getGotModulePointer() ? 2 : 1;
2213 if (LocalNum - Skip <= 0)
2215 return GotEntries.slice(Skip, LocalNum - Skip);
2218 template <class ELFT>
2219 typename MipsGOTParser<ELFT>::Entries
2220 MipsGOTParser<ELFT>::getGlobalEntries() const {
2223 return GotEntries.slice(LocalNum, GlobalNum);
2226 template <class ELFT>
2227 typename MipsGOTParser<ELFT>::Entries
2228 MipsGOTParser<ELFT>::getOtherEntries() const {
2229 size_t OtherNum = GotEntries.size() - LocalNum - GlobalNum;
2232 return GotEntries.slice(LocalNum + GlobalNum, OtherNum);
2235 template <class ELFT>
2236 uint64_t MipsGOTParser<ELFT>::getGotAddress(const Entry *E) const {
2237 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry);
2238 return GotSec->sh_addr + Offset;
2241 template <class ELFT>
2242 int64_t MipsGOTParser<ELFT>::getGotOffset(const Entry *E) const {
2243 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry);
2244 return Offset - 0x7ff0;
2247 template <class ELFT>
2248 const typename MipsGOTParser<ELFT>::Elf_Sym *
2249 MipsGOTParser<ELFT>::getGotSym(const Entry *E) const {
2250 int64_t Offset = std::distance(GotEntries.data(), E);
2251 return &GotDynSyms[Offset - LocalNum];
2254 template <class ELFT>
2255 const typename MipsGOTParser<ELFT>::Entry *
2256 MipsGOTParser<ELFT>::getPltLazyResolver() const {
2257 return PltEntries.empty() ? nullptr : &PltEntries[0];
2260 template <class ELFT>
2261 const typename MipsGOTParser<ELFT>::Entry *
2262 MipsGOTParser<ELFT>::getPltModulePointer() const {
2263 return PltEntries.size() < 2 ? nullptr : &PltEntries[1];
2266 template <class ELFT>
2267 typename MipsGOTParser<ELFT>::Entries
2268 MipsGOTParser<ELFT>::getPltEntries() const {
2269 if (PltEntries.size() <= 2)
2271 return PltEntries.slice(2, PltEntries.size() - 2);
2274 template <class ELFT>
2275 uint64_t MipsGOTParser<ELFT>::getPltAddress(const Entry *E) const {
2276 int64_t Offset = std::distance(PltEntries.data(), E) * sizeof(Entry);
2277 return PltSec->sh_addr + Offset;
2280 template <class ELFT>
2281 const typename MipsGOTParser<ELFT>::Elf_Sym *
2282 MipsGOTParser<ELFT>::getPltSym(const Entry *E) const {
2283 int64_t Offset = std::distance(getPltEntries().data(), E);
2284 if (PltRelSec->sh_type == ELF::SHT_REL) {
2285 Elf_Rel_Range Rels = unwrapOrError(Obj->rels(PltRelSec));
2286 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable));
2288 Elf_Rela_Range Rels = unwrapOrError(Obj->relas(PltRelSec));
2289 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable));
2293 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
2294 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
2295 if (Obj->getHeader()->e_machine != EM_MIPS)
2296 reportError("MIPS PLT GOT is available for MIPS targets only");
2298 MipsGOTParser<ELFT> Parser(Obj, dynamic_table(), dynamic_symbols());
2299 if (Parser.hasGot())
2300 ELFDumperStyle->printMipsGOT(Parser);
2301 if (Parser.hasPlt())
2302 ELFDumperStyle->printMipsPLT(Parser);
2305 static const EnumEntry<unsigned> ElfMipsISAExtType[] = {
2306 {"None", Mips::AFL_EXT_NONE},
2307 {"Broadcom SB-1", Mips::AFL_EXT_SB1},
2308 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON},
2309 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2},
2310 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP},
2311 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3},
2312 {"LSI R4010", Mips::AFL_EXT_4010},
2313 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E},
2314 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F},
2315 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A},
2316 {"MIPS R4650", Mips::AFL_EXT_4650},
2317 {"MIPS R5900", Mips::AFL_EXT_5900},
2318 {"MIPS R10000", Mips::AFL_EXT_10000},
2319 {"NEC VR4100", Mips::AFL_EXT_4100},
2320 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111},
2321 {"NEC VR4120", Mips::AFL_EXT_4120},
2322 {"NEC VR5400", Mips::AFL_EXT_5400},
2323 {"NEC VR5500", Mips::AFL_EXT_5500},
2324 {"RMI Xlr", Mips::AFL_EXT_XLR},
2325 {"Toshiba R3900", Mips::AFL_EXT_3900}
2328 static const EnumEntry<unsigned> ElfMipsASEFlags[] = {
2329 {"DSP", Mips::AFL_ASE_DSP},
2330 {"DSPR2", Mips::AFL_ASE_DSPR2},
2331 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA},
2332 {"MCU", Mips::AFL_ASE_MCU},
2333 {"MDMX", Mips::AFL_ASE_MDMX},
2334 {"MIPS-3D", Mips::AFL_ASE_MIPS3D},
2335 {"MT", Mips::AFL_ASE_MT},
2336 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS},
2337 {"VZ", Mips::AFL_ASE_VIRT},
2338 {"MSA", Mips::AFL_ASE_MSA},
2339 {"MIPS16", Mips::AFL_ASE_MIPS16},
2340 {"microMIPS", Mips::AFL_ASE_MICROMIPS},
2341 {"XPA", Mips::AFL_ASE_XPA},
2342 {"CRC", Mips::AFL_ASE_CRC},
2343 {"GINV", Mips::AFL_ASE_GINV},
2346 static const EnumEntry<unsigned> ElfMipsFpABIType[] = {
2347 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY},
2348 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE},
2349 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE},
2350 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT},
2351 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)",
2352 Mips::Val_GNU_MIPS_ABI_FP_OLD_64},
2353 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX},
2354 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64},
2355 {"Hard float compat (32-bit CPU, 64-bit FPU)",
2356 Mips::Val_GNU_MIPS_ABI_FP_64A}
2359 static const EnumEntry<unsigned> ElfMipsFlags1[] {
2360 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG},
2363 static int getMipsRegisterSize(uint8_t Flag) {
2365 case Mips::AFL_REG_NONE:
2367 case Mips::AFL_REG_32:
2369 case Mips::AFL_REG_64:
2371 case Mips::AFL_REG_128:
2378 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() {
2379 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
2380 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags");
2382 W.startLine() << "There is no .MIPS.abiflags section in the file.\n";
2385 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2386 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) {
2387 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n";
2391 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data());
2393 raw_ostream &OS = W.getOStream();
2394 DictScope GS(W, "MIPS ABI Flags");
2396 W.printNumber("Version", Flags->version);
2397 W.startLine() << "ISA: ";
2398 if (Flags->isa_rev <= 1)
2399 OS << format("MIPS%u", Flags->isa_level);
2401 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev);
2403 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType));
2404 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags));
2405 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType));
2406 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size));
2407 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size));
2408 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size));
2409 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1));
2410 W.printHex("Flags 2", Flags->flags2);
2413 template <class ELFT>
2414 static void printMipsReginfoData(ScopedPrinter &W,
2415 const Elf_Mips_RegInfo<ELFT> &Reginfo) {
2416 W.printHex("GP", Reginfo.ri_gp_value);
2417 W.printHex("General Mask", Reginfo.ri_gprmask);
2418 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]);
2419 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]);
2420 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]);
2421 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]);
2424 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() {
2425 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
2426 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo");
2428 W.startLine() << "There is no .reginfo section in the file.\n";
2431 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2432 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) {
2433 W.startLine() << "The .reginfo section has a wrong size.\n";
2437 DictScope GS(W, "MIPS RegInfo");
2438 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data());
2439 printMipsReginfoData(W, *Reginfo);
2442 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() {
2443 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
2444 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options");
2446 W.startLine() << "There is no .MIPS.options section in the file.\n";
2450 DictScope GS(W, "MIPS Options");
2452 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2453 while (!Sec.empty()) {
2454 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) {
2455 W.startLine() << "The .MIPS.options section has a wrong size.\n";
2458 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data());
2459 DictScope GS(W, getElfMipsOptionsOdkType(O->kind));
2462 printMipsReginfoData(W, O->getRegInfo());
2465 W.startLine() << "Unsupported MIPS options tag.\n";
2468 Sec = Sec.slice(O->size);
2472 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const {
2473 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
2474 const Elf_Shdr *StackMapSection = nullptr;
2475 for (const auto &Sec : unwrapOrError(Obj->sections())) {
2476 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2477 if (Name == ".llvm_stackmaps") {
2478 StackMapSection = &Sec;
2483 if (!StackMapSection)
2486 ArrayRef<uint8_t> StackMapContentsArray =
2487 unwrapOrError(Obj->getSectionContents(StackMapSection));
2489 prettyPrintStackMap(
2490 W, StackMapV2Parser<ELFT::TargetEndianness>(StackMapContentsArray));
2493 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() {
2494 ELFDumperStyle->printGroupSections(ObjF->getELFFile());
2497 template <class ELFT> void ELFDumper<ELFT>::printAddrsig() {
2498 ELFDumperStyle->printAddrsig(ObjF->getELFFile());
2501 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1,
2505 OS.PadToColumn(37u);
2510 template <class ELFT>
2511 static std::string getSectionHeadersNumString(const ELFFile<ELFT> *Obj) {
2512 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader();
2513 if (ElfHeader->e_shnum != 0)
2514 return to_string(ElfHeader->e_shnum);
2516 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections());
2519 return "0 (" + to_string(Arr[0].sh_size) + ")";
2522 template <class ELFT>
2523 static std::string getSectionHeaderTableIndexString(const ELFFile<ELFT> *Obj) {
2524 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader();
2525 if (ElfHeader->e_shstrndx != SHN_XINDEX)
2526 return to_string(ElfHeader->e_shstrndx);
2528 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections());
2530 return "65535 (corrupt: out of range)";
2531 return to_string(ElfHeader->e_shstrndx) + " (" + to_string(Arr[0].sh_link) + ")";
2534 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
2535 const Elf_Ehdr *e = Obj->getHeader();
2536 OS << "ELF Header:\n";
2539 for (int i = 0; i < ELF::EI_NIDENT; i++)
2540 OS << format(" %02x", static_cast<int>(e->e_ident[i]));
2542 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
2543 printFields(OS, "Class:", Str);
2544 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding));
2545 printFields(OS, "Data:", Str);
2548 OS.PadToColumn(37u);
2549 OS << to_hexString(e->e_ident[ELF::EI_VERSION]);
2550 if (e->e_version == ELF::EV_CURRENT)
2553 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI));
2554 printFields(OS, "OS/ABI:", Str);
2555 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]);
2556 printFields(OS, "ABI Version:", Str);
2557 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType));
2558 printFields(OS, "Type:", Str);
2559 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType));
2560 printFields(OS, "Machine:", Str);
2561 Str = "0x" + to_hexString(e->e_version);
2562 printFields(OS, "Version:", Str);
2563 Str = "0x" + to_hexString(e->e_entry);
2564 printFields(OS, "Entry point address:", Str);
2565 Str = to_string(e->e_phoff) + " (bytes into file)";
2566 printFields(OS, "Start of program headers:", Str);
2567 Str = to_string(e->e_shoff) + " (bytes into file)";
2568 printFields(OS, "Start of section headers:", Str);
2569 std::string ElfFlags;
2570 if (e->e_machine == EM_MIPS)
2572 printFlags(e->e_flags, makeArrayRef(ElfHeaderMipsFlags),
2573 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
2574 unsigned(ELF::EF_MIPS_MACH));
2575 else if (e->e_machine == EM_RISCV)
2576 ElfFlags = printFlags(e->e_flags, makeArrayRef(ElfHeaderRISCVFlags));
2577 Str = "0x" + to_hexString(e->e_flags);
2578 if (!ElfFlags.empty())
2579 Str = Str + ", " + ElfFlags;
2580 printFields(OS, "Flags:", Str);
2581 Str = to_string(e->e_ehsize) + " (bytes)";
2582 printFields(OS, "Size of this header:", Str);
2583 Str = to_string(e->e_phentsize) + " (bytes)";
2584 printFields(OS, "Size of program headers:", Str);
2585 Str = to_string(e->e_phnum);
2586 printFields(OS, "Number of program headers:", Str);
2587 Str = to_string(e->e_shentsize) + " (bytes)";
2588 printFields(OS, "Size of section headers:", Str);
2589 Str = getSectionHeadersNumString(Obj);
2590 printFields(OS, "Number of section headers:", Str);
2591 Str = getSectionHeaderTableIndexString(Obj);
2592 printFields(OS, "Section header string table index:", Str);
2596 struct GroupMember {
2601 struct GroupSection {
2603 std::string Signature;
2609 std::vector<GroupMember> Members;
2612 template <class ELFT>
2613 std::vector<GroupSection> getGroups(const ELFFile<ELFT> *Obj) {
2614 using Elf_Shdr = typename ELFT::Shdr;
2615 using Elf_Sym = typename ELFT::Sym;
2616 using Elf_Word = typename ELFT::Word;
2618 std::vector<GroupSection> Ret;
2620 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2622 if (Sec.sh_type != ELF::SHT_GROUP)
2625 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
2626 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
2627 const Elf_Sym *Sym =
2628 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info));
2630 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
2632 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2633 StringRef Signature = StrTable.data() + Sym->st_name;
2634 Ret.push_back({Name,
2635 maybeDemangle(Signature),
2643 std::vector<GroupMember> &GM = Ret.back().Members;
2644 for (uint32_t Ndx : Data.slice(1)) {
2645 auto Sec = unwrapOrError(Obj->getSection(Ndx));
2646 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
2647 GM.push_back({Name, Ndx});
2653 DenseMap<uint64_t, const GroupSection *>
2654 mapSectionsToGroups(ArrayRef<GroupSection> Groups) {
2655 DenseMap<uint64_t, const GroupSection *> Ret;
2656 for (const GroupSection &G : Groups)
2657 for (const GroupMember &GM : G.Members)
2658 Ret.insert({GM.Index, &G});
2664 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) {
2665 std::vector<GroupSection> V = getGroups<ELFT>(Obj);
2666 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V);
2667 for (const GroupSection &G : V) {
2669 << getGroupType(G.Type) << " group section ["
2670 << format_decimal(G.Index, 5) << "] `" << G.Name << "' [" << G.Signature
2671 << "] contains " << G.Members.size() << " sections:\n"
2672 << " [Index] Name\n";
2673 for (const GroupMember &GM : G.Members) {
2674 const GroupSection *MainGroup = Map[GM.Index];
2675 if (MainGroup != &G) {
2677 errs() << "Error: section [" << format_decimal(GM.Index, 5)
2678 << "] in group section [" << format_decimal(G.Index, 5)
2679 << "] already in group section ["
2680 << format_decimal(MainGroup->Index, 5) << "]";
2684 OS << " [" << format_decimal(GM.Index, 5) << "] " << GM.Name << "\n";
2689 OS << "There are no section groups in this file.\n";
2692 template <class ELFT>
2693 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
2694 const Elf_Rela &R, bool IsRela) {
2695 // First two fields are bit width dependent. The rest of them are after are
2697 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2698 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
2699 SmallString<32> RelocName;
2700 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
2701 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab));
2702 std::string TargetName;
2703 if (Sym && Sym->getType() == ELF::STT_SECTION) {
2704 const Elf_Shdr *Sec = unwrapOrError(
2705 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
2706 TargetName = unwrapOrError(Obj->getSectionName(Sec));
2708 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
2709 TargetName = this->dumper()->getFullSymbolName(
2710 Sym, StrTable, SymTab->sh_type == SHT_DYNSYM /* IsDynamic */);
2713 unsigned Width = ELFT::Is64Bits ? 16 : 8;
2714 Fields[0].Str = to_string(format_hex_no_prefix(R.r_offset, Width));
2715 Fields[1].Str = to_string(format_hex_no_prefix(R.r_info, Width));
2716 Fields[2].Str = RelocName.str();
2718 Fields[3].Str = to_string(format_hex_no_prefix(Sym->getValue(), Width));
2719 Fields[4].Str = TargetName;
2720 for (auto &F : Fields)
2725 int64_t RelAddend = R.r_addend;
2727 if (R.r_addend < 0) {
2729 RelAddend = std::abs(RelAddend);
2734 Addend += to_hexString(RelAddend, false);
2736 OS << Addend << "\n";
2739 template <class ELFT> void GNUStyle<ELFT>::printRelocHeader(unsigned SType) {
2740 bool IsRela = SType == ELF::SHT_RELA || SType == ELF::SHT_ANDROID_RELA;
2741 bool IsRelr = SType == ELF::SHT_RELR || SType == ELF::SHT_ANDROID_RELR;
2746 if (IsRelr && opts::RawRelr)
2752 << " Symbol's Value Symbol's Name";
2754 OS << " Info Type Sym. Value Symbol's Name";
2760 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) {
2761 bool HasRelocSections = false;
2762 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2763 if (Sec.sh_type != ELF::SHT_REL &&
2764 Sec.sh_type != ELF::SHT_RELA &&
2765 Sec.sh_type != ELF::SHT_RELR &&
2766 Sec.sh_type != ELF::SHT_ANDROID_REL &&
2767 Sec.sh_type != ELF::SHT_ANDROID_RELA &&
2768 Sec.sh_type != ELF::SHT_ANDROID_RELR)
2770 HasRelocSections = true;
2771 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2772 unsigned Entries = Sec.getEntityCount();
2773 std::vector<Elf_Rela> AndroidRelas;
2774 if (Sec.sh_type == ELF::SHT_ANDROID_REL ||
2775 Sec.sh_type == ELF::SHT_ANDROID_RELA) {
2776 // Android's packed relocation section needs to be unpacked first
2777 // to get the actual number of entries.
2778 AndroidRelas = unwrapOrError(Obj->android_relas(&Sec));
2779 Entries = AndroidRelas.size();
2781 std::vector<Elf_Rela> RelrRelas;
2782 if (!opts::RawRelr && (Sec.sh_type == ELF::SHT_RELR ||
2783 Sec.sh_type == ELF::SHT_ANDROID_RELR)) {
2784 // .relr.dyn relative relocation section needs to be unpacked first
2785 // to get the actual number of entries.
2786 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(&Sec));
2787 RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs));
2788 Entries = RelrRelas.size();
2790 uintX_t Offset = Sec.sh_offset;
2791 OS << "\nRelocation section '" << Name << "' at offset 0x"
2792 << to_hexString(Offset, false) << " contains " << Entries
2794 printRelocHeader(Sec.sh_type);
2795 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link));
2796 switch (Sec.sh_type) {
2798 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) {
2800 Rela.r_offset = R.r_offset;
2801 Rela.r_info = R.r_info;
2803 printRelocation(Obj, SymTab, Rela, false);
2807 for (const auto &R : unwrapOrError(Obj->relas(&Sec)))
2808 printRelocation(Obj, SymTab, R, true);
2811 case ELF::SHT_ANDROID_RELR:
2813 for (const auto &R : unwrapOrError(Obj->relrs(&Sec)))
2814 OS << to_string(format_hex_no_prefix(R, ELFT::Is64Bits ? 16 : 8))
2817 for (const auto &R : RelrRelas)
2818 printRelocation(Obj, SymTab, R, false);
2820 case ELF::SHT_ANDROID_REL:
2821 case ELF::SHT_ANDROID_RELA:
2822 for (const auto &R : AndroidRelas)
2823 printRelocation(Obj, SymTab, R, Sec.sh_type == ELF::SHT_ANDROID_RELA);
2827 if (!HasRelocSections)
2828 OS << "\nThere are no relocations in this file.\n";
2831 // Print the offset of a particular section from anyone of the ranges:
2832 // [SHT_LOOS, SHT_HIOS], [SHT_LOPROC, SHT_HIPROC], [SHT_LOUSER, SHT_HIUSER].
2833 // If 'Type' does not fall within any of those ranges, then a string is
2834 // returned as '<unknown>' followed by the type value.
2835 static std::string getSectionTypeOffsetString(unsigned Type) {
2836 if (Type >= SHT_LOOS && Type <= SHT_HIOS)
2837 return "LOOS+0x" + to_hexString(Type - SHT_LOOS);
2838 else if (Type >= SHT_LOPROC && Type <= SHT_HIPROC)
2839 return "LOPROC+0x" + to_hexString(Type - SHT_LOPROC);
2840 else if (Type >= SHT_LOUSER && Type <= SHT_HIUSER)
2841 return "LOUSER+0x" + to_hexString(Type - SHT_LOUSER);
2842 return "0x" + to_hexString(Type) + ": <unknown>";
2845 static std::string getSectionTypeString(unsigned Arch, unsigned Type) {
2846 using namespace ELF;
2853 case SHT_ARM_PREEMPTMAP:
2854 return "ARM_PREEMPTMAP";
2855 case SHT_ARM_ATTRIBUTES:
2856 return "ARM_ATTRIBUTES";
2857 case SHT_ARM_DEBUGOVERLAY:
2858 return "ARM_DEBUGOVERLAY";
2859 case SHT_ARM_OVERLAYSECTION:
2860 return "ARM_OVERLAYSECTION";
2865 case SHT_X86_64_UNWIND:
2866 return "X86_64_UNWIND";
2870 case EM_MIPS_RS3_LE:
2872 case SHT_MIPS_REGINFO:
2873 return "MIPS_REGINFO";
2874 case SHT_MIPS_OPTIONS:
2875 return "MIPS_OPTIONS";
2876 case SHT_MIPS_DWARF:
2877 return "MIPS_DWARF";
2878 case SHT_MIPS_ABIFLAGS:
2879 return "MIPS_ABIFLAGS";
2908 case SHT_INIT_ARRAY:
2909 return "INIT_ARRAY";
2910 case SHT_FINI_ARRAY:
2911 return "FINI_ARRAY";
2912 case SHT_PREINIT_ARRAY:
2913 return "PREINIT_ARRAY";
2916 case SHT_SYMTAB_SHNDX:
2917 return "SYMTAB SECTION INDICES";
2918 case SHT_ANDROID_REL:
2919 return "ANDROID_REL";
2920 case SHT_ANDROID_RELA:
2921 return "ANDROID_RELA";
2923 case SHT_ANDROID_RELR:
2925 case SHT_LLVM_ODRTAB:
2926 return "LLVM_ODRTAB";
2927 case SHT_LLVM_LINKER_OPTIONS:
2928 return "LLVM_LINKER_OPTIONS";
2929 case SHT_LLVM_CALL_GRAPH_PROFILE:
2930 return "LLVM_CALL_GRAPH_PROFILE";
2931 case SHT_LLVM_ADDRSIG:
2932 return "LLVM_ADDRSIG";
2933 // FIXME: Parse processor specific GNU attributes
2934 case SHT_GNU_ATTRIBUTES:
2935 return "ATTRIBUTES";
2938 case SHT_GNU_verdef:
2940 case SHT_GNU_verneed:
2942 case SHT_GNU_versym:
2945 return getSectionTypeOffsetString(Type);
2950 template <class ELFT>
2951 void GNUStyle<ELFT>::printSectionHeaders(const ELFO *Obj) {
2952 unsigned Bias = ELFT::Is64Bits ? 0 : 8;
2953 ArrayRef<Elf_Shdr> Sections = unwrapOrError(Obj->sections());
2954 OS << "There are " << to_string(Sections.size())
2955 << " section headers, starting at offset "
2956 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n";
2957 OS << "Section Headers:\n";
2958 Field Fields[11] = {
2959 {"[Nr]", 2}, {"Name", 7}, {"Type", 25},
2960 {"Address", 41}, {"Off", 58 - Bias}, {"Size", 65 - Bias},
2961 {"ES", 72 - Bias}, {"Flg", 75 - Bias}, {"Lk", 79 - Bias},
2962 {"Inf", 82 - Bias}, {"Al", 86 - Bias}};
2963 for (auto &F : Fields)
2967 size_t SectionIndex = 0;
2968 for (const Elf_Shdr &Sec : Sections) {
2969 Fields[0].Str = to_string(SectionIndex);
2970 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec));
2972 getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type);
2974 to_string(format_hex_no_prefix(Sec.sh_addr, ELFT::Is64Bits ? 16 : 8));
2975 Fields[4].Str = to_string(format_hex_no_prefix(Sec.sh_offset, 6));
2976 Fields[5].Str = to_string(format_hex_no_prefix(Sec.sh_size, 6));
2977 Fields[6].Str = to_string(format_hex_no_prefix(Sec.sh_entsize, 2));
2978 Fields[7].Str = getGNUFlags(Sec.sh_flags);
2979 Fields[8].Str = to_string(Sec.sh_link);
2980 Fields[9].Str = to_string(Sec.sh_info);
2981 Fields[10].Str = to_string(Sec.sh_addralign);
2983 OS.PadToColumn(Fields[0].Column);
2984 OS << "[" << right_justify(Fields[0].Str, 2) << "]";
2985 for (int i = 1; i < 7; i++)
2986 printField(Fields[i]);
2987 OS.PadToColumn(Fields[7].Column);
2988 OS << right_justify(Fields[7].Str, 3);
2989 OS.PadToColumn(Fields[8].Column);
2990 OS << right_justify(Fields[8].Str, 2);
2991 OS.PadToColumn(Fields[9].Column);
2992 OS << right_justify(Fields[9].Str, 3);
2993 OS.PadToColumn(Fields[10].Column);
2994 OS << right_justify(Fields[10].Str, 2);
2998 OS << "Key to Flags:\n"
2999 << " W (write), A (alloc), X (execute), M (merge), S (strings), l "
3001 << " I (info), L (link order), G (group), T (TLS), E (exclude),\
3003 << " O (extra OS processing required) o (OS specific),\
3004 p (processor specific)\n";
3007 template <class ELFT>
3008 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name,
3011 OS << "\nSymbol table '" << Name << "' contains " << Entries
3014 OS << "\n Symbol table for image:\n";
3017 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
3019 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
3022 template <class ELFT>
3023 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj,
3024 const Elf_Sym *Symbol,
3025 const Elf_Sym *FirstSym) {
3026 unsigned SectionIndex = Symbol->st_shndx;
3027 switch (SectionIndex) {
3028 case ELF::SHN_UNDEF:
3032 case ELF::SHN_COMMON:
3034 case ELF::SHN_XINDEX:
3035 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>(
3036 Symbol, FirstSym, this->dumper()->getShndxTable()));
3040 // Processor specific
3041 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC)
3042 return std::string("PRC[0x") +
3043 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
3045 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS)
3046 return std::string("OS[0x") +
3047 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
3048 // Architecture reserved:
3049 if (SectionIndex >= ELF::SHN_LORESERVE &&
3050 SectionIndex <= ELF::SHN_HIRESERVE)
3051 return std::string("RSV[0x") +
3052 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
3053 // A normal section with an index
3054 return to_string(format_decimal(SectionIndex, 3));
3058 template <class ELFT>
3059 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
3060 const Elf_Sym *FirstSym, StringRef StrTable,
3063 static bool Dynamic = true;
3065 // If this function was called with a different value from IsDynamic
3066 // from last call, happens when we move from dynamic to static symbol
3067 // table, "Num" field should be reset.
3068 if (!Dynamic != !IsDynamic) {
3073 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3074 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias,
3075 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias};
3076 Fields[0].Str = to_string(format_decimal(Idx++, 6)) + ":";
3077 Fields[1].Str = to_string(
3078 format_hex_no_prefix(Symbol->st_value, ELFT::Is64Bits ? 16 : 8));
3079 Fields[2].Str = to_string(format_decimal(Symbol->st_size, 5));
3081 unsigned char SymbolType = Symbol->getType();
3082 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
3083 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
3084 Fields[3].Str = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
3086 Fields[3].Str = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
3089 printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
3091 printEnum(Symbol->getVisibility(), makeArrayRef(ElfSymbolVisibilities));
3092 Fields[6].Str = getSymbolSectionNdx(Obj, Symbol, FirstSym);
3094 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
3095 for (auto &Entry : Fields)
3100 template <class ELFT>
3101 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym,
3102 uint32_t Sym, StringRef StrTable,
3104 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3105 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias,
3106 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias};
3107 Fields[0].Str = to_string(format_decimal(Sym, 5));
3108 Fields[1].Str = to_string(format_decimal(Bucket, 3)) + ":";
3110 const auto Symbol = FirstSym + Sym;
3111 Fields[2].Str = to_string(
3112 format_hex_no_prefix(Symbol->st_value, ELFT::Is64Bits ? 18 : 8));
3113 Fields[3].Str = to_string(format_decimal(Symbol->st_size, 5));
3115 unsigned char SymbolType = Symbol->getType();
3116 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
3117 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
3118 Fields[4].Str = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
3120 Fields[4].Str = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
3123 printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
3125 printEnum(Symbol->getVisibility(), makeArrayRef(ElfSymbolVisibilities));
3126 Fields[7].Str = getSymbolSectionNdx(Obj, Symbol, FirstSym);
3127 Fields[8].Str = this->dumper()->getFullSymbolName(Symbol, StrTable, true);
3129 for (auto &Entry : Fields)
3134 template <class ELFT>
3135 void GNUStyle<ELFT>::printSymbols(const ELFO *Obj, bool PrintSymbols,
3136 bool PrintDynamicSymbols) {
3137 if (!PrintSymbols && !PrintDynamicSymbols)
3139 // GNU readelf prints both the .dynsym and .symtab with --symbols.
3140 this->dumper()->printSymbolsHelper(true);
3142 this->dumper()->printSymbolsHelper(false);
3145 template <class ELFT> void GNUStyle<ELFT>::printHashSymbols(const ELFO *Obj) {
3146 if (this->dumper()->getDynamicStringTable().empty())
3148 auto StringTable = this->dumper()->getDynamicStringTable();
3149 auto DynSyms = this->dumper()->dynamic_symbols();
3151 // Try printing .hash
3152 if (auto SysVHash = this->dumper()->getHashTable()) {
3153 OS << "\n Symbol table of .hash for image:\n";
3155 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3157 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3160 auto Buckets = SysVHash->buckets();
3161 auto Chains = SysVHash->chains();
3162 for (uint32_t Buc = 0; Buc < SysVHash->nbucket; Buc++) {
3163 if (Buckets[Buc] == ELF::STN_UNDEF)
3165 for (uint32_t Ch = Buckets[Buc]; Ch < SysVHash->nchain; Ch = Chains[Ch]) {
3166 if (Ch == ELF::STN_UNDEF)
3168 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc);
3173 // Try printing .gnu.hash
3174 if (auto GnuHash = this->dumper()->getGnuHashTable()) {
3175 OS << "\n Symbol table of .gnu.hash for image:\n";
3177 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3179 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3181 auto Buckets = GnuHash->buckets();
3182 for (uint32_t Buc = 0; Buc < GnuHash->nbuckets; Buc++) {
3183 if (Buckets[Buc] == ELF::STN_UNDEF)
3185 uint32_t Index = Buckets[Buc];
3186 uint32_t GnuHashable = Index - GnuHash->symndx;
3187 // Print whole chain
3189 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc);
3190 // Chain ends at symbol with stopper bit
3191 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1)
3198 static inline std::string printPhdrFlags(unsigned Flag) {
3200 Str = (Flag & PF_R) ? "R" : " ";
3201 Str += (Flag & PF_W) ? "W" : " ";
3202 Str += (Flag & PF_X) ? "E" : " ";
3206 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO
3207 // PT_TLS must only have SHF_TLS sections
3208 template <class ELFT>
3209 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr,
3210 const Elf_Shdr &Sec) {
3211 return (((Sec.sh_flags & ELF::SHF_TLS) &&
3212 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) ||
3213 (Phdr.p_type == ELF::PT_GNU_RELRO))) ||
3214 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS));
3217 // Non-SHT_NOBITS must have its offset inside the segment
3218 // Only non-zero section can be at end of segment
3219 template <class ELFT>
3220 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3221 if (Sec.sh_type == ELF::SHT_NOBITS)
3224 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
3225 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
3227 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
3228 if (Sec.sh_offset >= Phdr.p_offset)
3229 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset)
3230 /*only non-zero sized sections at end*/ &&
3231 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz));
3235 // SHF_ALLOC must have VMA inside segment
3236 // Only non-zero section can be at end of segment
3237 template <class ELFT>
3238 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3239 if (!(Sec.sh_flags & ELF::SHF_ALLOC))
3242 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
3243 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
3245 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
3246 if (Sec.sh_addr >= Phdr.p_vaddr)
3247 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) &&
3248 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz));
3252 // No section with zero size must be at start or end of PT_DYNAMIC
3253 template <class ELFT>
3254 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3255 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0)
3257 // Is section within the phdr both based on offset and VMA ?
3258 return ((Sec.sh_type == ELF::SHT_NOBITS) ||
3259 (Sec.sh_offset > Phdr.p_offset &&
3260 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) &&
3261 (!(Sec.sh_flags & ELF::SHF_ALLOC) ||
3262 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz));
3265 template <class ELFT>
3266 void GNUStyle<ELFT>::printProgramHeaders(
3267 const ELFO *Obj, bool PrintProgramHeaders,
3268 cl::boolOrDefault PrintSectionMapping) {
3269 if (PrintProgramHeaders)
3270 printProgramHeaders(Obj);
3272 // Display the section mapping along with the program headers, unless
3273 // -section-mapping is explicitly set to false.
3274 if (PrintSectionMapping != cl::BOU_FALSE)
3275 printSectionMapping(Obj);
3278 template <class ELFT>
3279 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
3280 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3281 const Elf_Ehdr *Header = Obj->getHeader();
3282 Field Fields[8] = {2, 17, 26, 37 + Bias,
3283 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias};
3284 OS << "\nElf file type is "
3285 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n"
3286 << "Entry point " << format_hex(Header->e_entry, 3) << "\n"
3287 << "There are " << Header->e_phnum << " program headers,"
3288 << " starting at offset " << Header->e_phoff << "\n\n"
3289 << "Program Headers:\n";
3291 OS << " Type Offset VirtAddr PhysAddr "
3292 << " FileSiz MemSiz Flg Align\n";
3294 OS << " Type Offset VirtAddr PhysAddr FileSiz "
3295 << "MemSiz Flg Align\n";
3297 unsigned Width = ELFT::Is64Bits ? 18 : 10;
3298 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7;
3299 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) {
3300 Fields[0].Str = getElfPtType(Header->e_machine, Phdr.p_type);
3301 Fields[1].Str = to_string(format_hex(Phdr.p_offset, 8));
3302 Fields[2].Str = to_string(format_hex(Phdr.p_vaddr, Width));
3303 Fields[3].Str = to_string(format_hex(Phdr.p_paddr, Width));
3304 Fields[4].Str = to_string(format_hex(Phdr.p_filesz, SizeWidth));
3305 Fields[5].Str = to_string(format_hex(Phdr.p_memsz, SizeWidth));
3306 Fields[6].Str = printPhdrFlags(Phdr.p_flags);
3307 Fields[7].Str = to_string(format_hex(Phdr.p_align, 1));
3308 for (auto Field : Fields)
3310 if (Phdr.p_type == ELF::PT_INTERP) {
3311 OS << "\n [Requesting program interpreter: ";
3312 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]";
3318 template <class ELFT>
3319 void GNUStyle<ELFT>::printSectionMapping(const ELFO *Obj) {
3320 OS << "\n Section to Segment mapping:\n Segment Sections...\n";
3321 DenseSet<const Elf_Shdr *> BelongsToSegment;
3323 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
3324 std::string Sections;
3325 OS << format(" %2.2d ", Phnum++);
3326 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3327 // Check if each section is in a segment and then print mapping.
3328 // readelf additionally makes sure it does not print zero sized sections
3329 // at end of segments and for PT_DYNAMIC both start and end of section
3330 // .tbss must only be shown in PT_TLS section.
3331 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) &&
3332 ((Sec.sh_flags & ELF::SHF_TLS) != 0) &&
3333 Phdr.p_type != ELF::PT_TLS;
3334 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) &&
3335 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) &&
3336 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) {
3337 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " ";
3338 BelongsToSegment.insert(&Sec);
3341 OS << Sections << "\n";
3345 // Display sections that do not belong to a segment.
3346 std::string Sections;
3347 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3348 if (BelongsToSegment.find(&Sec) == BelongsToSegment.end())
3349 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + ' ';
3351 if (!Sections.empty()) {
3352 OS << " None " << Sections << '\n';
3357 template <class ELFT>
3358 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R,
3360 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3361 // First two fields are bit width dependent. The rest of them are after are
3363 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
3365 unsigned Width = ELFT::Is64Bits ? 16 : 8;
3366 Fields[0].Str = to_string(format_hex_no_prefix(R.r_offset, Width));
3367 Fields[1].Str = to_string(format_hex_no_prefix(R.r_info, Width));
3369 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL());
3370 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
3371 SmallString<32> RelocName;
3372 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
3373 Fields[2].Str = RelocName.c_str();
3375 std::string SymbolName = maybeDemangle(
3376 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())));
3378 if (!SymbolName.empty() || Sym->getValue() != 0)
3379 Fields[3].Str = to_string(format_hex_no_prefix(Sym->getValue(), Width));
3381 Fields[4].Str = SymbolName;
3382 for (auto &Field : Fields)
3387 int64_t RelAddend = R.r_addend;
3388 if (!SymbolName.empty()) {
3389 if (R.r_addend < 0) {
3391 RelAddend = std::abs(RelAddend);
3395 Addend += to_string(format_hex_no_prefix(RelAddend, 1));
3397 OS << Addend << "\n";
3400 template <class ELFT>
3401 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3402 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3403 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3404 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion();
3405 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3406 if (DynRelaRegion.Size > 0) {
3407 OS << "\n'RELA' relocation section at offset "
3408 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) -
3410 1) << " contains " << DynRelaRegion.Size << " bytes:\n";
3411 printRelocHeader(ELF::SHT_RELA);
3412 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3413 printDynamicRelocation(Obj, Rela, true);
3415 if (DynRelRegion.Size > 0) {
3416 OS << "\n'REL' relocation section at offset "
3417 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) -
3419 1) << " contains " << DynRelRegion.Size << " bytes:\n";
3420 printRelocHeader(ELF::SHT_REL);
3421 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3423 Rela.r_offset = Rel.r_offset;
3424 Rela.r_info = Rel.r_info;
3426 printDynamicRelocation(Obj, Rela, false);
3429 if (DynRelrRegion.Size > 0) {
3430 OS << "\n'RELR' relocation section at offset "
3431 << format_hex(reinterpret_cast<const uint8_t *>(DynRelrRegion.Addr) -
3433 1) << " contains " << DynRelrRegion.Size << " bytes:\n";
3434 printRelocHeader(ELF::SHT_REL);
3435 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs();
3436 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs));
3437 for (const Elf_Rela &Rela : RelrRelas) {
3438 printDynamicRelocation(Obj, Rela, false);
3441 if (DynPLTRelRegion.Size) {
3442 OS << "\n'PLT' relocation section at offset "
3443 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) -
3445 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n";
3447 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) {
3448 printRelocHeader(ELF::SHT_RELA);
3449 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
3450 printDynamicRelocation(Obj, Rela, true);
3452 printRelocHeader(ELF::SHT_REL);
3453 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
3455 Rela.r_offset = Rel.r_offset;
3456 Rela.r_info = Rel.r_info;
3458 printDynamicRelocation(Obj, Rela, false);
3463 // Hash histogram shows statistics of how efficient the hash was for the
3464 // dynamic symbol table. The table shows number of hash buckets for different
3465 // lengths of chains as absolute number and percentage of the total buckets.
3466 // Additionally cumulative coverage of symbols for each set of buckets.
3467 template <class ELFT>
3468 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
3469 // Print histogram for .hash section
3470 if (const Elf_Hash *HashTable = this->dumper()->getHashTable()) {
3471 size_t NBucket = HashTable->nbucket;
3472 size_t NChain = HashTable->nchain;
3473 ArrayRef<Elf_Word> Buckets = HashTable->buckets();
3474 ArrayRef<Elf_Word> Chains = HashTable->chains();
3475 size_t TotalSyms = 0;
3476 // If hash table is correct, we have at least chains with 0 length
3477 size_t MaxChain = 1;
3478 size_t CumulativeNonZero = 0;
3480 if (NChain == 0 || NBucket == 0)
3483 std::vector<size_t> ChainLen(NBucket, 0);
3484 // Go over all buckets and and note chain lengths of each bucket (total
3485 // unique chain lengths).
3486 for (size_t B = 0; B < NBucket; B++) {
3487 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C])
3488 if (MaxChain <= ++ChainLen[B])
3490 TotalSyms += ChainLen[B];
3496 std::vector<size_t> Count(MaxChain, 0) ;
3497 // Count how long is the chain for each bucket
3498 for (size_t B = 0; B < NBucket; B++)
3499 ++Count[ChainLen[B]];
3500 // Print Number of buckets with each chain lengths and their cumulative
3501 // coverage of the symbols
3502 OS << "Histogram for bucket list length (total of " << NBucket
3504 << " Length Number % of total Coverage\n";
3505 for (size_t I = 0; I < MaxChain; I++) {
3506 CumulativeNonZero += Count[I] * I;
3507 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3508 (Count[I] * 100.0) / NBucket,
3509 (CumulativeNonZero * 100.0) / TotalSyms);
3513 // Print histogram for .gnu.hash section
3514 if (const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable()) {
3515 size_t NBucket = GnuHashTable->nbuckets;
3516 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets();
3517 unsigned NumSyms = this->dumper()->dynamic_symbols().size();
3520 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms);
3521 size_t Symndx = GnuHashTable->symndx;
3522 size_t TotalSyms = 0;
3523 size_t MaxChain = 1;
3524 size_t CumulativeNonZero = 0;
3526 if (Chains.empty() || NBucket == 0)
3529 std::vector<size_t> ChainLen(NBucket, 0);
3531 for (size_t B = 0; B < NBucket; B++) {
3535 for (size_t C = Buckets[B] - Symndx;
3536 C < Chains.size() && (Chains[C] & 1) == 0; C++)
3537 if (MaxChain < ++Len)
3547 std::vector<size_t> Count(MaxChain, 0) ;
3548 for (size_t B = 0; B < NBucket; B++)
3549 ++Count[ChainLen[B]];
3550 // Print Number of buckets with each chain lengths and their cumulative
3551 // coverage of the symbols
3552 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket
3554 << " Length Number % of total Coverage\n";
3555 for (size_t I = 0; I <MaxChain; I++) {
3556 CumulativeNonZero += Count[I] * I;
3557 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3558 (Count[I] * 100.0) / NBucket,
3559 (CumulativeNonZero * 100.0) / TotalSyms);
3564 template <class ELFT>
3565 void GNUStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) {
3566 OS << "GNUStyle::printCGProfile not implemented\n";
3569 template <class ELFT>
3570 void GNUStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) {
3571 OS << "GNUStyle::printAddrsig not implemented\n";
3574 static std::string getGNUNoteTypeName(const uint32_t NT) {
3575 static const struct {
3579 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"},
3580 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"},
3581 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"},
3582 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"},
3583 {ELF::NT_GNU_PROPERTY_TYPE_0, "NT_GNU_PROPERTY_TYPE_0 (property note)"},
3586 for (const auto &Note : Notes)
3588 return std::string(Note.Name);
3591 raw_string_ostream OS(string);
3592 OS << format("Unknown note type (0x%08x)", NT);
3596 static std::string getFreeBSDNoteTypeName(const uint32_t NT) {
3597 static const struct {
3601 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"},
3602 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"},
3603 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"},
3604 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"},
3605 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"},
3606 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"},
3607 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"},
3608 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"},
3609 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS,
3610 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"},
3611 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"},
3614 for (const auto &Note : Notes)
3616 return std::string(Note.Name);
3619 raw_string_ostream OS(string);
3620 OS << format("Unknown note type (0x%08x)", NT);
3624 static std::string getAMDNoteTypeName(const uint32_t NT) {
3625 static const struct {
3629 {ELF::NT_AMD_AMDGPU_HSA_METADATA,
3630 "NT_AMD_AMDGPU_HSA_METADATA (HSA Metadata)"},
3631 {ELF::NT_AMD_AMDGPU_ISA,
3632 "NT_AMD_AMDGPU_ISA (ISA Version)"},
3633 {ELF::NT_AMD_AMDGPU_PAL_METADATA,
3634 "NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)"}
3637 for (const auto &Note : Notes)
3639 return std::string(Note.Name);
3642 raw_string_ostream OS(string);
3643 OS << format("Unknown note type (0x%08x)", NT);
3647 static std::string getAMDGPUNoteTypeName(const uint32_t NT) {
3648 if (NT == ELF::NT_AMDGPU_METADATA)
3649 return std::string("NT_AMDGPU_METADATA (AMDGPU Metadata)");
3652 raw_string_ostream OS(string);
3653 OS << format("Unknown note type (0x%08x)", NT);
3657 template <typename ELFT>
3658 static std::string getGNUProperty(uint32_t Type, uint32_t DataSize,
3659 ArrayRef<uint8_t> Data) {
3661 raw_string_ostream OS(str);
3663 auto DumpBit = [&](uint32_t Flag, StringRef Name) {
3664 if (PrData & Flag) {
3674 OS << format("<application-specific type 0x%x>", Type);
3676 case GNU_PROPERTY_STACK_SIZE: {
3677 OS << "stack size: ";
3678 if (DataSize == sizeof(typename ELFT::uint))
3679 OS << formatv("{0:x}",
3680 (uint64_t)(*(const typename ELFT::Addr *)Data.data()));
3682 OS << format("<corrupt length: 0x%x>", DataSize);
3685 case GNU_PROPERTY_NO_COPY_ON_PROTECTED:
3686 OS << "no copy on protected";
3688 OS << format(" <corrupt length: 0x%x>", DataSize);
3690 case GNU_PROPERTY_X86_FEATURE_1_AND:
3691 OS << "x86 feature: ";
3692 if (DataSize != 4) {
3693 OS << format("<corrupt length: 0x%x>", DataSize);
3696 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data());
3701 DumpBit(GNU_PROPERTY_X86_FEATURE_1_IBT, "IBT");
3702 DumpBit(GNU_PROPERTY_X86_FEATURE_1_SHSTK, "SHSTK");
3704 OS << format("<unknown flags: 0x%x>", PrData);
3706 case GNU_PROPERTY_X86_ISA_1_NEEDED:
3707 case GNU_PROPERTY_X86_ISA_1_USED:
3709 << (Type == GNU_PROPERTY_X86_ISA_1_NEEDED ? "needed: " : "used: ");
3710 if (DataSize != 4) {
3711 OS << format("<corrupt length: 0x%x>", DataSize);
3714 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data());
3719 DumpBit(GNU_PROPERTY_X86_ISA_1_CMOV, "CMOV");
3720 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE, "SSE");
3721 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE2, "SSE2");
3722 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE3, "SSE3");
3723 DumpBit(GNU_PROPERTY_X86_ISA_1_SSSE3, "SSSE3");
3724 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_1, "SSE4_1");
3725 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_2, "SSE4_2");
3726 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX, "AVX");
3727 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX2, "AVX2");
3728 DumpBit(GNU_PROPERTY_X86_ISA_1_FMA, "FMA");
3729 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512F, "AVX512F");
3730 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512CD, "AVX512CD");
3731 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512ER, "AVX512ER");
3732 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512PF, "AVX512PF");
3733 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512VL, "AVX512VL");
3734 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512DQ, "AVX512DQ");
3735 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512BW, "AVX512BW");
3736 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS, "AVX512_4FMAPS");
3737 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW, "AVX512_4VNNIW");
3738 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_BITALG, "AVX512_BITALG");
3739 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_IFMA, "AVX512_IFMA");
3740 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI, "AVX512_VBMI");
3741 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2, "AVX512_VBMI2");
3742 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VNNI, "AVX512_VNNI");
3744 OS << format("<unknown flags: 0x%x>", PrData);
3747 case GNU_PROPERTY_X86_FEATURE_2_NEEDED:
3748 case GNU_PROPERTY_X86_FEATURE_2_USED:
3749 OS << "x86 feature "
3750 << (Type == GNU_PROPERTY_X86_FEATURE_2_NEEDED ? "needed: " : "used: ");
3751 if (DataSize != 4) {
3752 OS << format("<corrupt length: 0x%x>", DataSize);
3755 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data());
3760 DumpBit(GNU_PROPERTY_X86_FEATURE_2_X86, "x86");
3761 DumpBit(GNU_PROPERTY_X86_FEATURE_2_X87, "x87");
3762 DumpBit(GNU_PROPERTY_X86_FEATURE_2_MMX, "MMX");
3763 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XMM, "XMM");
3764 DumpBit(GNU_PROPERTY_X86_FEATURE_2_YMM, "YMM");
3765 DumpBit(GNU_PROPERTY_X86_FEATURE_2_ZMM, "ZMM");
3766 DumpBit(GNU_PROPERTY_X86_FEATURE_2_FXSR, "FXSR");
3767 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVE, "XSAVE");
3768 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT, "XSAVEOPT");
3769 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVEC, "XSAVEC");
3771 OS << format("<unknown flags: 0x%x>", PrData);
3776 template <typename ELFT>
3777 static SmallVector<std::string, 4>
3778 getGNUPropertyList(ArrayRef<uint8_t> Arr) {
3779 using Elf_Word = typename ELFT::Word;
3781 SmallVector<std::string, 4> Properties;
3782 while (Arr.size() >= 8) {
3783 uint32_t Type = *reinterpret_cast<const Elf_Word *>(Arr.data());
3784 uint32_t DataSize = *reinterpret_cast<const Elf_Word *>(Arr.data() + 4);
3785 Arr = Arr.drop_front(8);
3787 // Take padding size into account if present.
3788 uint64_t PaddedSize = alignTo(DataSize, sizeof(typename ELFT::uint));
3790 raw_string_ostream OS(str);
3791 if (Arr.size() < PaddedSize) {
3792 OS << format("<corrupt type (0x%x) datasz: 0x%x>", Type, DataSize);
3793 Properties.push_back(OS.str());
3796 Properties.push_back(
3797 getGNUProperty<ELFT>(Type, DataSize, Arr.take_front(PaddedSize)));
3798 Arr = Arr.drop_front(PaddedSize);
3802 Properties.push_back("<corrupted GNU_PROPERTY_TYPE_0>");
3813 template <typename ELFT>
3814 static GNUAbiTag getGNUAbiTag(ArrayRef<uint8_t> Desc) {
3815 typedef typename ELFT::Word Elf_Word;
3817 ArrayRef<Elf_Word> Words(reinterpret_cast<const Elf_Word*>(Desc.begin()),
3818 reinterpret_cast<const Elf_Word*>(Desc.end()));
3820 if (Words.size() < 4)
3821 return {"", "", /*IsValid=*/false};
3823 static const char *OSNames[] = {
3824 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl",
3826 StringRef OSName = "Unknown";
3827 if (Words[0] < array_lengthof(OSNames))
3828 OSName = OSNames[Words[0]];
3829 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3];
3831 raw_string_ostream ABI(str);
3832 ABI << Major << "." << Minor << "." << Patch;
3833 return {OSName, ABI.str(), /*IsValid=*/true};
3836 static std::string getGNUBuildId(ArrayRef<uint8_t> Desc) {
3838 raw_string_ostream OS(str);
3839 for (const auto &B : Desc)
3840 OS << format_hex_no_prefix(B, 2);
3844 static StringRef getGNUGoldVersion(ArrayRef<uint8_t> Desc) {
3845 return StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size());
3848 template <typename ELFT>
3849 static void printGNUNote(raw_ostream &OS, uint32_t NoteType,
3850 ArrayRef<uint8_t> Desc) {
3854 case ELF::NT_GNU_ABI_TAG: {
3855 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc);
3856 if (!AbiTag.IsValid)
3857 OS << " <corrupt GNU_ABI_TAG>";
3859 OS << " OS: " << AbiTag.OSName << ", ABI: " << AbiTag.ABI;
3862 case ELF::NT_GNU_BUILD_ID: {
3863 OS << " Build ID: " << getGNUBuildId(Desc);
3866 case ELF::NT_GNU_GOLD_VERSION:
3867 OS << " Version: " << getGNUGoldVersion(Desc);
3869 case ELF::NT_GNU_PROPERTY_TYPE_0:
3870 OS << " Properties:";
3871 for (const auto &Property : getGNUPropertyList<ELFT>(Desc))
3872 OS << " " << Property << "\n";
3883 template <typename ELFT>
3884 static AMDNote getAMDNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) {
3888 case ELF::NT_AMD_AMDGPU_HSA_METADATA:
3889 return {"HSA Metadata",
3890 std::string(reinterpret_cast<const char *>(Desc.data()),
3892 case ELF::NT_AMD_AMDGPU_ISA:
3893 return {"ISA Version",
3894 std::string(reinterpret_cast<const char *>(Desc.data()),
3904 template <typename ELFT>
3905 static AMDGPUNote getAMDGPUNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) {
3909 case ELF::NT_AMDGPU_METADATA: {
3910 auto MsgPackString =
3911 StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size());
3912 msgpack::Document MsgPackDoc;
3913 if (!MsgPackDoc.readFromBlob(MsgPackString, /*Multi=*/false))
3914 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"};
3916 AMDGPU::HSAMD::V3::MetadataVerifier Verifier(true);
3917 if (!Verifier.verify(MsgPackDoc.getRoot()))
3918 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"};
3920 std::string HSAMetadataString;
3921 raw_string_ostream StrOS(HSAMetadataString);
3922 MsgPackDoc.toYAML(StrOS);
3924 return {"AMDGPU Metadata", StrOS.str()};
3929 template <class ELFT>
3930 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
3931 auto PrintHeader = [&](const typename ELFT::Off Offset,
3932 const typename ELFT::Addr Size) {
3933 OS << "Displaying notes found at file offset " << format_hex(Offset, 10)
3934 << " with length " << format_hex(Size, 10) << ":\n"
3935 << " Owner Data size\tDescription\n";
3938 auto ProcessNote = [&](const Elf_Note &Note) {
3939 StringRef Name = Note.getName();
3940 ArrayRef<uint8_t> Descriptor = Note.getDesc();
3941 Elf_Word Type = Note.getType();
3943 OS << " " << Name << std::string(22 - Name.size(), ' ')
3944 << format_hex(Descriptor.size(), 10) << '\t';
3946 if (Name == "GNU") {
3947 OS << getGNUNoteTypeName(Type) << '\n';
3948 printGNUNote<ELFT>(OS, Type, Descriptor);
3949 } else if (Name == "FreeBSD") {
3950 OS << getFreeBSDNoteTypeName(Type) << '\n';
3951 } else if (Name == "AMD") {
3952 OS << getAMDNoteTypeName(Type) << '\n';
3953 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor);
3954 if (!N.Type.empty())
3955 OS << " " << N.Type << ":\n " << N.Value << '\n';
3956 } else if (Name == "AMDGPU") {
3957 OS << getAMDGPUNoteTypeName(Type) << '\n';
3958 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor);
3959 if (!N.Type.empty())
3960 OS << " " << N.Type << ":\n " << N.Value << '\n';
3962 OS << "Unknown note type: (" << format_hex(Type, 10) << ')';
3967 if (Obj->getHeader()->e_type == ELF::ET_CORE) {
3968 for (const auto &P : unwrapOrError(Obj->program_headers())) {
3969 if (P.p_type != PT_NOTE)
3971 PrintHeader(P.p_offset, P.p_filesz);
3972 Error Err = Error::success();
3973 for (const auto &Note : Obj->notes(P, Err))
3976 error(std::move(Err));
3979 for (const auto &S : unwrapOrError(Obj->sections())) {
3980 if (S.sh_type != SHT_NOTE)
3982 PrintHeader(S.sh_offset, S.sh_size);
3983 Error Err = Error::success();
3984 for (const auto &Note : Obj->notes(S, Err))
3987 error(std::move(Err));
3992 template <class ELFT>
3993 void GNUStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) {
3994 OS << "printELFLinkerOptions not implemented!\n";
3997 template <class ELFT>
3998 void GNUStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) {
3999 size_t Bias = ELFT::Is64Bits ? 8 : 0;
4000 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) {
4002 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias);
4003 OS.PadToColumn(11 + Bias);
4004 OS << format_decimal(Parser.getGotOffset(E), 6) << "(gp)";
4005 OS.PadToColumn(22 + Bias);
4006 OS << format_hex_no_prefix(*E, 8 + Bias);
4007 OS.PadToColumn(31 + 2 * Bias);
4008 OS << Purpose << "\n";
4011 OS << (Parser.IsStatic ? "Static GOT:\n" : "Primary GOT:\n");
4012 OS << " Canonical gp value: "
4013 << format_hex_no_prefix(Parser.getGp(), 8 + Bias) << "\n\n";
4015 OS << " Reserved entries:\n";
4016 OS << " Address Access Initial Purpose\n";
4017 PrintEntry(Parser.getGotLazyResolver(), "Lazy resolver");
4018 if (Parser.getGotModulePointer())
4019 PrintEntry(Parser.getGotModulePointer(), "Module pointer (GNU extension)");
4021 if (!Parser.getLocalEntries().empty()) {
4023 OS << " Local entries:\n";
4024 OS << " Address Access Initial\n";
4025 for (auto &E : Parser.getLocalEntries())
4029 if (Parser.IsStatic)
4032 if (!Parser.getGlobalEntries().empty()) {
4034 OS << " Global entries:\n";
4035 OS << " Address Access Initial Sym.Val. Type Ndx Name\n";
4036 for (auto &E : Parser.getGlobalEntries()) {
4037 const Elf_Sym *Sym = Parser.getGotSym(&E);
4038 std::string SymName = this->dumper()->getFullSymbolName(
4039 Sym, this->dumper()->getDynamicStringTable(), false);
4042 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias));
4043 OS.PadToColumn(11 + Bias);
4044 OS << to_string(format_decimal(Parser.getGotOffset(&E), 6)) + "(gp)";
4045 OS.PadToColumn(22 + Bias);
4046 OS << to_string(format_hex_no_prefix(E, 8 + Bias));
4047 OS.PadToColumn(31 + 2 * Bias);
4048 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias));
4049 OS.PadToColumn(40 + 3 * Bias);
4050 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes));
4051 OS.PadToColumn(48 + 3 * Bias);
4052 OS << getSymbolSectionNdx(Parser.Obj, Sym,
4053 this->dumper()->dynamic_symbols().begin());
4054 OS.PadToColumn(52 + 3 * Bias);
4055 OS << SymName << "\n";
4059 if (!Parser.getOtherEntries().empty())
4060 OS << "\n Number of TLS and multi-GOT entries "
4061 << Parser.getOtherEntries().size() << "\n";
4064 template <class ELFT>
4065 void GNUStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) {
4066 size_t Bias = ELFT::Is64Bits ? 8 : 0;
4067 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) {
4069 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias);
4070 OS.PadToColumn(11 + Bias);
4071 OS << format_hex_no_prefix(*E, 8 + Bias);
4072 OS.PadToColumn(20 + 2 * Bias);
4073 OS << Purpose << "\n";
4076 OS << "PLT GOT:\n\n";
4078 OS << " Reserved entries:\n";
4079 OS << " Address Initial Purpose\n";
4080 PrintEntry(Parser.getPltLazyResolver(), "PLT lazy resolver");
4081 if (Parser.getPltModulePointer())
4082 PrintEntry(Parser.getGotModulePointer(), "Module pointer");
4084 if (!Parser.getPltEntries().empty()) {
4086 OS << " Entries:\n";
4087 OS << " Address Initial Sym.Val. Type Ndx Name\n";
4088 for (auto &E : Parser.getPltEntries()) {
4089 const Elf_Sym *Sym = Parser.getPltSym(&E);
4090 std::string SymName = this->dumper()->getFullSymbolName(
4091 Sym, this->dumper()->getDynamicStringTable(), false);
4094 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias));
4095 OS.PadToColumn(11 + Bias);
4096 OS << to_string(format_hex_no_prefix(E, 8 + Bias));
4097 OS.PadToColumn(20 + 2 * Bias);
4098 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias));
4099 OS.PadToColumn(29 + 3 * Bias);
4100 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes));
4101 OS.PadToColumn(37 + 3 * Bias);
4102 OS << getSymbolSectionNdx(Parser.Obj, Sym,
4103 this->dumper()->dynamic_symbols().begin());
4104 OS.PadToColumn(41 + 3 * Bias);
4105 OS << SymName << "\n";
4110 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
4111 const Elf_Ehdr *E = Obj->getHeader();
4113 DictScope D(W, "ElfHeader");
4115 DictScope D(W, "Ident");
4116 W.printBinary("Magic", makeArrayRef(E->e_ident).slice(ELF::EI_MAG0, 4));
4117 W.printEnum("Class", E->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
4118 W.printEnum("DataEncoding", E->e_ident[ELF::EI_DATA],
4119 makeArrayRef(ElfDataEncoding));
4120 W.printNumber("FileVersion", E->e_ident[ELF::EI_VERSION]);
4122 auto OSABI = makeArrayRef(ElfOSABI);
4123 if (E->e_ident[ELF::EI_OSABI] >= ELF::ELFOSABI_FIRST_ARCH &&
4124 E->e_ident[ELF::EI_OSABI] <= ELF::ELFOSABI_LAST_ARCH) {
4125 switch (E->e_machine) {
4126 case ELF::EM_AMDGPU:
4127 OSABI = makeArrayRef(AMDGPUElfOSABI);
4130 OSABI = makeArrayRef(ARMElfOSABI);
4132 case ELF::EM_TI_C6000:
4133 OSABI = makeArrayRef(C6000ElfOSABI);
4137 W.printEnum("OS/ABI", E->e_ident[ELF::EI_OSABI], OSABI);
4138 W.printNumber("ABIVersion", E->e_ident[ELF::EI_ABIVERSION]);
4139 W.printBinary("Unused", makeArrayRef(E->e_ident).slice(ELF::EI_PAD));
4142 W.printEnum("Type", E->e_type, makeArrayRef(ElfObjectFileType));
4143 W.printEnum("Machine", E->e_machine, makeArrayRef(ElfMachineType));
4144 W.printNumber("Version", E->e_version);
4145 W.printHex("Entry", E->e_entry);
4146 W.printHex("ProgramHeaderOffset", E->e_phoff);
4147 W.printHex("SectionHeaderOffset", E->e_shoff);
4148 if (E->e_machine == EM_MIPS)
4149 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderMipsFlags),
4150 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
4151 unsigned(ELF::EF_MIPS_MACH));
4152 else if (E->e_machine == EM_AMDGPU)
4153 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderAMDGPUFlags),
4154 unsigned(ELF::EF_AMDGPU_MACH));
4155 else if (E->e_machine == EM_RISCV)
4156 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderRISCVFlags));
4158 W.printFlags("Flags", E->e_flags);
4159 W.printNumber("HeaderSize", E->e_ehsize);
4160 W.printNumber("ProgramHeaderEntrySize", E->e_phentsize);
4161 W.printNumber("ProgramHeaderCount", E->e_phnum);
4162 W.printNumber("SectionHeaderEntrySize", E->e_shentsize);
4163 W.printString("SectionHeaderCount", getSectionHeadersNumString(Obj));
4164 W.printString("StringTableSectionIndex", getSectionHeaderTableIndexString(Obj));
4168 template <class ELFT>
4169 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) {
4170 DictScope Lists(W, "Groups");
4171 std::vector<GroupSection> V = getGroups<ELFT>(Obj);
4172 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V);
4173 for (const GroupSection &G : V) {
4174 DictScope D(W, "Group");
4175 W.printNumber("Name", G.Name, G.ShName);
4176 W.printNumber("Index", G.Index);
4177 W.printNumber("Link", G.Link);
4178 W.printNumber("Info", G.Info);
4179 W.printHex("Type", getGroupType(G.Type), G.Type);
4180 W.startLine() << "Signature: " << G.Signature << "\n";
4182 ListScope L(W, "Section(s) in group");
4183 for (const GroupMember &GM : G.Members) {
4184 const GroupSection *MainGroup = Map[GM.Index];
4185 if (MainGroup != &G) {
4187 errs() << "Error: " << GM.Name << " (" << GM.Index
4188 << ") in a group " + G.Name + " (" << G.Index
4189 << ") is already in a group " + MainGroup->Name + " ("
4190 << MainGroup->Index << ")\n";
4194 W.startLine() << GM.Name << " (" << GM.Index << ")\n";
4199 W.startLine() << "There are no group sections in the file.\n";
4202 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) {
4203 ListScope D(W, "Relocations");
4205 int SectionNumber = -1;
4206 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
4209 if (Sec.sh_type != ELF::SHT_REL &&
4210 Sec.sh_type != ELF::SHT_RELA &&
4211 Sec.sh_type != ELF::SHT_RELR &&
4212 Sec.sh_type != ELF::SHT_ANDROID_REL &&
4213 Sec.sh_type != ELF::SHT_ANDROID_RELA &&
4214 Sec.sh_type != ELF::SHT_ANDROID_RELR)
4217 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
4219 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
4222 printRelocations(&Sec, Obj);
4225 W.startLine() << "}\n";
4229 template <class ELFT>
4230 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) {
4231 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link));
4233 switch (Sec->sh_type) {
4235 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) {
4237 Rela.r_offset = R.r_offset;
4238 Rela.r_info = R.r_info;
4240 printRelocation(Obj, Rela, SymTab);
4244 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec)))
4245 printRelocation(Obj, R, SymTab);
4248 case ELF::SHT_ANDROID_RELR: {
4249 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(Sec));
4250 if (opts::RawRelr) {
4251 for (const Elf_Relr &R : Relrs)
4252 W.startLine() << W.hex(R) << "\n";
4254 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs));
4255 for (const Elf_Rela &R : RelrRelas)
4256 printRelocation(Obj, R, SymTab);
4260 case ELF::SHT_ANDROID_REL:
4261 case ELF::SHT_ANDROID_RELA:
4262 for (const Elf_Rela &R : unwrapOrError(Obj->android_relas(Sec)))
4263 printRelocation(Obj, R, SymTab);
4268 template <class ELFT>
4269 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel,
4270 const Elf_Shdr *SymTab) {
4271 SmallString<32> RelocName;
4272 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
4273 std::string TargetName;
4274 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab));
4275 if (Sym && Sym->getType() == ELF::STT_SECTION) {
4276 const Elf_Shdr *Sec = unwrapOrError(
4277 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
4278 TargetName = unwrapOrError(Obj->getSectionName(Sec));
4280 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
4281 TargetName = this->dumper()->getFullSymbolName(
4282 Sym, StrTable, SymTab->sh_type == SHT_DYNSYM /* IsDynamic */);
4285 if (opts::ExpandRelocs) {
4286 DictScope Group(W, "Relocation");
4287 W.printHex("Offset", Rel.r_offset);
4288 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
4289 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-",
4290 Rel.getSymbol(Obj->isMips64EL()));
4291 W.printHex("Addend", Rel.r_addend);
4293 raw_ostream &OS = W.startLine();
4294 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
4295 << (!TargetName.empty() ? TargetName : "-") << " "
4296 << W.hex(Rel.r_addend) << "\n";
4300 template <class ELFT>
4301 void LLVMStyle<ELFT>::printSectionHeaders(const ELFO *Obj) {
4302 ListScope SectionsD(W, "Sections");
4304 int SectionIndex = -1;
4305 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
4308 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
4310 DictScope SectionD(W, "Section");
4311 W.printNumber("Index", SectionIndex);
4312 W.printNumber("Name", Name, Sec.sh_name);
4315 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type),
4317 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags),
4318 std::end(ElfSectionFlags));
4319 switch (Obj->getHeader()->e_machine) {
4321 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags),
4322 std::end(ElfARMSectionFlags));
4325 SectionFlags.insert(SectionFlags.end(),
4326 std::begin(ElfHexagonSectionFlags),
4327 std::end(ElfHexagonSectionFlags));
4330 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags),
4331 std::end(ElfMipsSectionFlags));
4334 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags),
4335 std::end(ElfX86_64SectionFlags));
4338 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags),
4339 std::end(ElfXCoreSectionFlags));
4345 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags));
4346 W.printHex("Address", Sec.sh_addr);
4347 W.printHex("Offset", Sec.sh_offset);
4348 W.printNumber("Size", Sec.sh_size);
4349 W.printNumber("Link", Sec.sh_link);
4350 W.printNumber("Info", Sec.sh_info);
4351 W.printNumber("AddressAlignment", Sec.sh_addralign);
4352 W.printNumber("EntrySize", Sec.sh_entsize);
4354 if (opts::SectionRelocations) {
4355 ListScope D(W, "Relocations");
4356 printRelocations(&Sec, Obj);
4359 if (opts::SectionSymbols) {
4360 ListScope D(W, "Symbols");
4361 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec();
4362 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
4364 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) {
4365 const Elf_Shdr *SymSec = unwrapOrError(
4366 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable()));
4368 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(),
4373 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) {
4374 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec));
4375 W.printBinaryBlock("SectionData",
4376 StringRef((const char *)Data.data(), Data.size()));
4381 template <class ELFT>
4382 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
4383 const Elf_Sym *First, StringRef StrTable,
4385 unsigned SectionIndex = 0;
4386 StringRef SectionName;
4387 this->dumper()->getSectionNameIndex(Symbol, First, SectionName, SectionIndex);
4388 std::string FullSymbolName =
4389 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
4390 unsigned char SymbolType = Symbol->getType();
4392 DictScope D(W, "Symbol");
4393 W.printNumber("Name", FullSymbolName, Symbol->st_name);
4394 W.printHex("Value", Symbol->st_value);
4395 W.printNumber("Size", Symbol->st_size);
4396 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
4397 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
4398 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
4399 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes));
4401 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes));
4402 if (Symbol->st_other == 0)
4403 // Usually st_other flag is zero. Do not pollute the output
4404 // by flags enumeration in that case.
4405 W.printNumber("Other", 0);
4407 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags),
4408 std::end(ElfSymOtherFlags));
4409 if (Obj->getHeader()->e_machine == EM_MIPS) {
4410 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16
4411 // flag overlapped with other ST_MIPS_xxx flags. So consider both
4412 // cases separately.
4413 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16)
4414 SymOtherFlags.insert(SymOtherFlags.end(),
4415 std::begin(ElfMips16SymOtherFlags),
4416 std::end(ElfMips16SymOtherFlags));
4418 SymOtherFlags.insert(SymOtherFlags.end(),
4419 std::begin(ElfMipsSymOtherFlags),
4420 std::end(ElfMipsSymOtherFlags));
4422 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u);
4424 W.printHex("Section", SectionName, SectionIndex);
4427 template <class ELFT>
4428 void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj, bool PrintSymbols,
4429 bool PrintDynamicSymbols) {
4432 if (PrintDynamicSymbols)
4433 printDynamicSymbols(Obj);
4436 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) {
4437 ListScope Group(W, "Symbols");
4438 this->dumper()->printSymbolsHelper(false);
4441 template <class ELFT>
4442 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
4443 ListScope Group(W, "DynamicSymbols");
4444 this->dumper()->printSymbolsHelper(true);
4447 template <class ELFT>
4448 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
4449 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
4450 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
4451 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion();
4452 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
4453 if (DynRelRegion.Size && DynRelaRegion.Size)
4454 report_fatal_error("There are both REL and RELA dynamic relocations");
4455 W.startLine() << "Dynamic Relocations {\n";
4457 if (DynRelaRegion.Size > 0)
4458 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
4459 printDynamicRelocation(Obj, Rela);
4461 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
4463 Rela.r_offset = Rel.r_offset;
4464 Rela.r_info = Rel.r_info;
4466 printDynamicRelocation(Obj, Rela);
4468 if (DynRelrRegion.Size > 0) {
4469 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs();
4470 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs));
4471 for (const Elf_Rela &Rela : RelrRelas)
4472 printDynamicRelocation(Obj, Rela);
4474 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela))
4475 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
4476 printDynamicRelocation(Obj, Rela);
4478 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
4480 Rela.r_offset = Rel.r_offset;
4481 Rela.r_info = Rel.r_info;
4483 printDynamicRelocation(Obj, Rela);
4486 W.startLine() << "}\n";
4489 template <class ELFT>
4490 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) {
4491 SmallString<32> RelocName;
4492 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
4493 std::string SymbolName;
4494 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL());
4495 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
4496 SymbolName = maybeDemangle(
4497 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())));
4498 if (opts::ExpandRelocs) {
4499 DictScope Group(W, "Relocation");
4500 W.printHex("Offset", Rel.r_offset);
4501 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
4502 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-");
4503 W.printHex("Addend", Rel.r_addend);
4505 raw_ostream &OS = W.startLine();
4506 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
4507 << (!SymbolName.empty() ? SymbolName : "-") << " "
4508 << W.hex(Rel.r_addend) << "\n";
4512 template <class ELFT>
4513 void LLVMStyle<ELFT>::printProgramHeaders(
4514 const ELFO *Obj, bool PrintProgramHeaders,
4515 cl::boolOrDefault PrintSectionMapping) {
4516 if (PrintProgramHeaders)
4517 printProgramHeaders(Obj);
4518 if (PrintSectionMapping == cl::BOU_TRUE)
4519 printSectionMapping(Obj);
4522 template <class ELFT>
4523 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
4524 ListScope L(W, "ProgramHeaders");
4526 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
4527 DictScope P(W, "ProgramHeader");
4529 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type),
4531 W.printHex("Offset", Phdr.p_offset);
4532 W.printHex("VirtualAddress", Phdr.p_vaddr);
4533 W.printHex("PhysicalAddress", Phdr.p_paddr);
4534 W.printNumber("FileSize", Phdr.p_filesz);
4535 W.printNumber("MemSize", Phdr.p_memsz);
4536 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags));
4537 W.printNumber("Alignment", Phdr.p_align);
4541 template <class ELFT>
4542 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
4543 W.startLine() << "Hash Histogram not implemented!\n";
4546 template <class ELFT>
4547 void LLVMStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) {
4548 ListScope L(W, "CGProfile");
4549 if (!this->dumper()->getDotCGProfileSec())
4552 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_CGProfile>(
4553 this->dumper()->getDotCGProfileSec()));
4554 for (const Elf_CGProfile &CGPE : CGProfile) {
4555 DictScope D(W, "CGProfileEntry");
4556 W.printNumber("From", this->dumper()->getStaticSymbolName(CGPE.cgp_from),
4558 W.printNumber("To", this->dumper()->getStaticSymbolName(CGPE.cgp_to),
4560 W.printNumber("Weight", CGPE.cgp_weight);
4564 template <class ELFT>
4565 void LLVMStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) {
4566 ListScope L(W, "Addrsig");
4567 if (!this->dumper()->getDotAddrsigSec())
4569 ArrayRef<uint8_t> Contents = unwrapOrError(
4570 Obj->getSectionContents(this->dumper()->getDotAddrsigSec()));
4571 const uint8_t *Cur = Contents.begin();
4572 const uint8_t *End = Contents.end();
4573 while (Cur != End) {
4576 uint64_t SymIndex = decodeULEB128(Cur, &Size, End, &Err);
4579 W.printNumber("Sym", this->dumper()->getStaticSymbolName(SymIndex),
4585 template <typename ELFT>
4586 static void printGNUNoteLLVMStyle(uint32_t NoteType,
4587 ArrayRef<uint8_t> Desc,
4592 case ELF::NT_GNU_ABI_TAG: {
4593 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc);
4594 if (!AbiTag.IsValid) {
4595 W.printString("ABI", "<corrupt GNU_ABI_TAG>");
4597 W.printString("OS", AbiTag.OSName);
4598 W.printString("ABI", AbiTag.ABI);
4602 case ELF::NT_GNU_BUILD_ID: {
4603 W.printString("Build ID", getGNUBuildId(Desc));
4606 case ELF::NT_GNU_GOLD_VERSION:
4607 W.printString("Version", getGNUGoldVersion(Desc));
4609 case ELF::NT_GNU_PROPERTY_TYPE_0:
4610 ListScope D(W, "Property");
4611 for (const auto &Property : getGNUPropertyList<ELFT>(Desc))
4612 W.printString(Property);
4617 template <class ELFT>
4618 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
4619 ListScope L(W, "Notes");
4621 auto PrintHeader = [&](const typename ELFT::Off Offset,
4622 const typename ELFT::Addr Size) {
4623 W.printHex("Offset", Offset);
4624 W.printHex("Size", Size);
4627 auto ProcessNote = [&](const Elf_Note &Note) {
4628 DictScope D2(W, "Note");
4629 StringRef Name = Note.getName();
4630 ArrayRef<uint8_t> Descriptor = Note.getDesc();
4631 Elf_Word Type = Note.getType();
4633 W.printString("Owner", Name);
4634 W.printHex("Data size", Descriptor.size());
4635 if (Name == "GNU") {
4636 W.printString("Type", getGNUNoteTypeName(Type));
4637 printGNUNoteLLVMStyle<ELFT>(Type, Descriptor, W);
4638 } else if (Name == "FreeBSD") {
4639 W.printString("Type", getFreeBSDNoteTypeName(Type));
4640 } else if (Name == "AMD") {
4641 W.printString("Type", getAMDNoteTypeName(Type));
4642 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor);
4643 if (!N.Type.empty())
4644 W.printString(N.Type, N.Value);
4645 } else if (Name == "AMDGPU") {
4646 W.printString("Type", getAMDGPUNoteTypeName(Type));
4647 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor);
4648 if (!N.Type.empty())
4649 W.printString(N.Type, N.Value);
4651 W.getOStream() << "Unknown note type: (" << format_hex(Type, 10) << ')';
4655 if (Obj->getHeader()->e_type == ELF::ET_CORE) {
4656 for (const auto &P : unwrapOrError(Obj->program_headers())) {
4657 if (P.p_type != PT_NOTE)
4659 DictScope D(W, "NoteSection");
4660 PrintHeader(P.p_offset, P.p_filesz);
4661 Error Err = Error::success();
4662 for (const auto &Note : Obj->notes(P, Err))
4665 error(std::move(Err));
4668 for (const auto &S : unwrapOrError(Obj->sections())) {
4669 if (S.sh_type != SHT_NOTE)
4671 DictScope D(W, "NoteSection");
4672 PrintHeader(S.sh_offset, S.sh_size);
4673 Error Err = Error::success();
4674 for (const auto &Note : Obj->notes(S, Err))
4677 error(std::move(Err));
4682 template <class ELFT>
4683 void LLVMStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) {
4684 ListScope L(W, "LinkerOptions");
4686 for (const Elf_Shdr &Shdr : unwrapOrError(Obj->sections())) {
4687 if (Shdr.sh_type != ELF::SHT_LLVM_LINKER_OPTIONS)
4690 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Shdr));
4691 for (const uint8_t *P = Contents.begin(), *E = Contents.end(); P < E; ) {
4692 StringRef Key = StringRef(reinterpret_cast<const char *>(P));
4694 StringRef(reinterpret_cast<const char *>(P) + Key.size() + 1);
4696 W.printString(Key, Value);
4698 P = P + Key.size() + Value.size() + 2;
4703 template <class ELFT>
4704 void LLVMStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) {
4705 auto PrintEntry = [&](const Elf_Addr *E) {
4706 W.printHex("Address", Parser.getGotAddress(E));
4707 W.printNumber("Access", Parser.getGotOffset(E));
4708 W.printHex("Initial", *E);
4711 DictScope GS(W, Parser.IsStatic ? "Static GOT" : "Primary GOT");
4713 W.printHex("Canonical gp value", Parser.getGp());
4715 ListScope RS(W, "Reserved entries");
4717 DictScope D(W, "Entry");
4718 PrintEntry(Parser.getGotLazyResolver());
4719 W.printString("Purpose", StringRef("Lazy resolver"));
4722 if (Parser.getGotModulePointer()) {
4723 DictScope D(W, "Entry");
4724 PrintEntry(Parser.getGotModulePointer());
4725 W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
4729 ListScope LS(W, "Local entries");
4730 for (auto &E : Parser.getLocalEntries()) {
4731 DictScope D(W, "Entry");
4736 if (Parser.IsStatic)
4740 ListScope GS(W, "Global entries");
4741 for (auto &E : Parser.getGlobalEntries()) {
4742 DictScope D(W, "Entry");
4746 const Elf_Sym *Sym = Parser.getGotSym(&E);
4747 W.printHex("Value", Sym->st_value);
4748 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
4750 unsigned SectionIndex = 0;
4751 StringRef SectionName;
4752 this->dumper()->getSectionNameIndex(
4753 Sym, this->dumper()->dynamic_symbols().begin(), SectionName,
4755 W.printHex("Section", SectionName, SectionIndex);
4757 std::string SymName = this->dumper()->getFullSymbolName(
4758 Sym, this->dumper()->getDynamicStringTable(), true);
4759 W.printNumber("Name", SymName, Sym->st_name);
4763 W.printNumber("Number of TLS and multi-GOT entries",
4764 uint64_t(Parser.getOtherEntries().size()));
4767 template <class ELFT>
4768 void LLVMStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) {
4769 auto PrintEntry = [&](const Elf_Addr *E) {
4770 W.printHex("Address", Parser.getPltAddress(E));
4771 W.printHex("Initial", *E);
4774 DictScope GS(W, "PLT GOT");
4777 ListScope RS(W, "Reserved entries");
4779 DictScope D(W, "Entry");
4780 PrintEntry(Parser.getPltLazyResolver());
4781 W.printString("Purpose", StringRef("PLT lazy resolver"));
4784 if (auto E = Parser.getPltModulePointer()) {
4785 DictScope D(W, "Entry");
4787 W.printString("Purpose", StringRef("Module pointer"));
4791 ListScope LS(W, "Entries");
4792 for (auto &E : Parser.getPltEntries()) {
4793 DictScope D(W, "Entry");
4796 const Elf_Sym *Sym = Parser.getPltSym(&E);
4797 W.printHex("Value", Sym->st_value);
4798 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
4800 unsigned SectionIndex = 0;
4801 StringRef SectionName;
4802 this->dumper()->getSectionNameIndex(
4803 Sym, this->dumper()->dynamic_symbols().begin(), SectionName,
4805 W.printHex("Section", SectionName, SectionIndex);
4807 std::string SymName =
4808 this->dumper()->getFullSymbolName(Sym, Parser.getPltStrTable(), true);
4809 W.printNumber("Name", SymName, Sym->st_name);