1 //===- ELFDumper.cpp - ELF-specific dumper --------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief This file implements the ELF-specific dumper for llvm-readobj.
13 //===----------------------------------------------------------------------===//
15 #include "ARMEHABIPrinter.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/Optional.h"
23 #include "llvm/ADT/PointerIntPair.h"
24 #include "llvm/ADT/SmallString.h"
25 #include "llvm/ADT/SmallVector.h"
26 #include "llvm/ADT/STLExtras.h"
27 #include "llvm/ADT/StringExtras.h"
28 #include "llvm/ADT/StringRef.h"
29 #include "llvm/ADT/Twine.h"
30 #include "llvm/BinaryFormat/ELF.h"
31 #include "llvm/Object/ELF.h"
32 #include "llvm/Object/ELFObjectFile.h"
33 #include "llvm/Object/ELFTypes.h"
34 #include "llvm/Object/Error.h"
35 #include "llvm/Object/ObjectFile.h"
36 #include "llvm/Object/StackMapParser.h"
37 #include "llvm/Support/AMDGPUMetadata.h"
38 #include "llvm/Support/ARMAttributeParser.h"
39 #include "llvm/Support/ARMBuildAttributes.h"
40 #include "llvm/Support/Casting.h"
41 #include "llvm/Support/Compiler.h"
42 #include "llvm/Support/Endian.h"
43 #include "llvm/Support/ErrorHandling.h"
44 #include "llvm/Support/Format.h"
45 #include "llvm/Support/FormattedStream.h"
46 #include "llvm/Support/MathExtras.h"
47 #include "llvm/Support/MipsABIFlags.h"
48 #include "llvm/Support/ScopedPrinter.h"
49 #include "llvm/Support/raw_ostream.h"
58 #include <system_error>
62 using namespace llvm::object;
65 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \
66 case ns::enum: return #enum;
68 #define ENUM_ENT(enum, altName) \
69 { #enum, altName, ELF::enum }
71 #define ENUM_ENT_1(enum) \
72 { #enum, #enum, ELF::enum }
74 #define LLVM_READOBJ_PHDR_ENUM(ns, enum) \
76 return std::string(#enum).substr(3);
78 #define TYPEDEF_ELF_TYPES(ELFT) \
79 using ELFO = ELFFile<ELFT>; \
80 using Elf_Addr = typename ELFO::Elf_Addr; \
81 using Elf_Shdr = typename ELFO::Elf_Shdr; \
82 using Elf_Sym = typename ELFO::Elf_Sym; \
83 using Elf_Dyn = typename ELFO::Elf_Dyn; \
84 using Elf_Dyn_Range = typename ELFO::Elf_Dyn_Range; \
85 using Elf_Rel = typename ELFO::Elf_Rel; \
86 using Elf_Rela = typename ELFO::Elf_Rela; \
87 using Elf_Rel_Range = typename ELFO::Elf_Rel_Range; \
88 using Elf_Rela_Range = typename ELFO::Elf_Rela_Range; \
89 using Elf_Phdr = typename ELFO::Elf_Phdr; \
90 using Elf_Half = typename ELFO::Elf_Half; \
91 using Elf_Ehdr = typename ELFO::Elf_Ehdr; \
92 using Elf_Word = typename ELFO::Elf_Word; \
93 using Elf_Hash = typename ELFO::Elf_Hash; \
94 using Elf_GnuHash = typename ELFO::Elf_GnuHash; \
95 using Elf_Sym_Range = typename ELFO::Elf_Sym_Range; \
96 using Elf_Versym = typename ELFO::Elf_Versym; \
97 using Elf_Verneed = typename ELFO::Elf_Verneed; \
98 using Elf_Vernaux = typename ELFO::Elf_Vernaux; \
99 using Elf_Verdef = typename ELFO::Elf_Verdef; \
100 using Elf_Verdaux = typename ELFO::Elf_Verdaux; \
101 using uintX_t = typename ELFO::uintX_t;
105 template <class ELFT> class DumpStyle;
107 /// Represents a contiguous uniform range in the file. We cannot just create a
108 /// range directly because when creating one of these from the .dynamic table
109 /// the size, entity size and virtual address are different entries in arbitrary
110 /// order (DT_REL, DT_RELSZ, DT_RELENT for example).
111 struct DynRegionInfo {
112 DynRegionInfo() = default;
113 DynRegionInfo(const void *A, uint64_t S, uint64_t ES)
114 : Addr(A), Size(S), EntSize(ES) {}
116 /// \brief Address in current address space.
117 const void *Addr = nullptr;
118 /// \brief Size in bytes of the region.
120 /// \brief Size of each entity in the region.
121 uint64_t EntSize = 0;
123 template <typename Type> ArrayRef<Type> getAsArrayRef() const {
124 const Type *Start = reinterpret_cast<const Type *>(Addr);
126 return {Start, Start};
127 if (EntSize != sizeof(Type) || Size % EntSize)
128 reportError("Invalid entity size");
129 return {Start, Start + (Size / EntSize)};
133 template<typename ELFT>
134 class ELFDumper : public ObjDumper {
136 ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer);
138 void printFileHeaders() override;
139 void printSections() override;
140 void printRelocations() override;
141 void printDynamicRelocations() override;
142 void printSymbols() override;
143 void printDynamicSymbols() override;
144 void printUnwindInfo() override;
146 void printDynamicTable() override;
147 void printNeededLibraries() override;
148 void printProgramHeaders() override;
149 void printHashTable() override;
150 void printGnuHashTable() override;
151 void printLoadName() override;
152 void printVersionInfo() override;
153 void printGroupSections() override;
155 void printAttributes() override;
156 void printMipsPLTGOT() override;
157 void printMipsABIFlags() override;
158 void printMipsReginfo() override;
159 void printMipsOptions() override;
161 void printStackMap() const override;
163 void printHashHistogram() override;
165 void printNotes() override;
168 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle;
170 TYPEDEF_ELF_TYPES(ELFT)
172 DynRegionInfo checkDRI(DynRegionInfo DRI) {
173 if (DRI.Addr < Obj->base() ||
174 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize())
175 error(llvm::object::object_error::parse_failed);
179 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) {
180 return checkDRI({Obj->base() + P->p_offset, P->p_filesz, EntSize});
183 DynRegionInfo createDRIFrom(const Elf_Shdr *S) {
184 return checkDRI({Obj->base() + S->sh_offset, S->sh_size, S->sh_entsize});
187 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments);
189 void printValue(uint64_t Type, uint64_t Value);
191 StringRef getDynamicString(uint64_t Offset) const;
192 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb,
193 bool &IsDefault) const;
194 void LoadVersionMap() const;
195 void LoadVersionNeeds(const Elf_Shdr *ec) const;
196 void LoadVersionDefs(const Elf_Shdr *sec) const;
199 DynRegionInfo DynRelRegion;
200 DynRegionInfo DynRelaRegion;
201 DynRegionInfo DynPLTRelRegion;
202 DynRegionInfo DynSymRegion;
203 DynRegionInfo DynamicTable;
204 StringRef DynamicStringTable;
206 const Elf_Hash *HashTable = nullptr;
207 const Elf_GnuHash *GnuHashTable = nullptr;
208 const Elf_Shdr *DotSymtabSec = nullptr;
209 StringRef DynSymtabName;
210 ArrayRef<Elf_Word> ShndxTable;
212 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version
213 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r
214 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d
216 // Records for each version index the corresponding Verdef or Vernaux entry.
217 // This is filled the first time LoadVersionMap() is called.
218 class VersionMapEntry : public PointerIntPair<const void *, 1> {
220 // If the integer is 0, this is an Elf_Verdef*.
221 // If the integer is 1, this is an Elf_Vernaux*.
222 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {}
223 VersionMapEntry(const Elf_Verdef *verdef)
224 : PointerIntPair<const void *, 1>(verdef, 0) {}
225 VersionMapEntry(const Elf_Vernaux *vernaux)
226 : PointerIntPair<const void *, 1>(vernaux, 1) {}
228 bool isNull() const { return getPointer() == nullptr; }
229 bool isVerdef() const { return !isNull() && getInt() == 0; }
230 bool isVernaux() const { return !isNull() && getInt() == 1; }
231 const Elf_Verdef *getVerdef() const {
232 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr;
234 const Elf_Vernaux *getVernaux() const {
235 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr;
238 mutable SmallVector<VersionMapEntry, 16> VersionMap;
241 Elf_Dyn_Range dynamic_table() const {
242 return DynamicTable.getAsArrayRef<Elf_Dyn>();
245 Elf_Sym_Range dynamic_symbols() const {
246 return DynSymRegion.getAsArrayRef<Elf_Sym>();
249 Elf_Rel_Range dyn_rels() const;
250 Elf_Rela_Range dyn_relas() const;
251 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable,
252 bool IsDynamic) const;
253 void getSectionNameIndex(const Elf_Sym *Symbol, const Elf_Sym *FirstSym,
254 StringRef &SectionName,
255 unsigned &SectionIndex) const;
257 void printSymbolsHelper(bool IsDynamic) const;
258 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; }
259 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; }
260 StringRef getDynamicStringTable() const { return DynamicStringTable; }
261 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; }
262 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; }
263 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; }
264 const Elf_Hash *getHashTable() const { return HashTable; }
265 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; }
268 template <class ELFT>
269 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const {
270 StringRef StrTable, SymtabName;
272 Elf_Sym_Range Syms(nullptr, nullptr);
274 StrTable = DynamicStringTable;
275 Syms = dynamic_symbols();
276 SymtabName = DynSymtabName;
277 if (DynSymRegion.Addr)
278 Entries = DynSymRegion.Size / DynSymRegion.EntSize;
282 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec));
283 Syms = unwrapOrError(Obj->symbols(DotSymtabSec));
284 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec));
285 Entries = DotSymtabSec->getEntityCount();
287 if (Syms.begin() == Syms.end())
289 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries);
290 for (const auto &Sym : Syms)
291 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic);
294 template <class ELFT> class MipsGOTParser;
296 template <typename ELFT> class DumpStyle {
298 using Elf_Shdr = typename ELFFile<ELFT>::Elf_Shdr;
299 using Elf_Sym = typename ELFFile<ELFT>::Elf_Sym;
301 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {}
302 virtual ~DumpStyle() = default;
304 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0;
305 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0;
306 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0;
307 virtual void printSections(const ELFFile<ELFT> *Obj) = 0;
308 virtual void printSymbols(const ELFFile<ELFT> *Obj) = 0;
309 virtual void printDynamicSymbols(const ELFFile<ELFT> *Obj) = 0;
310 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0;
311 virtual void printSymtabMessage(const ELFFile<ELFT> *obj, StringRef Name,
313 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol,
314 const Elf_Sym *FirstSym, StringRef StrTable,
316 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj) = 0;
317 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0;
318 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0;
319 virtual void printMipsGOT(const MipsGOTParser<ELFT> &Parser) = 0;
320 virtual void printMipsPLT(const MipsGOTParser<ELFT> &Parser) = 0;
321 const ELFDumper<ELFT> *dumper() const { return Dumper; }
324 const ELFDumper<ELFT> *Dumper;
327 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> {
328 formatted_raw_ostream OS;
331 TYPEDEF_ELF_TYPES(ELFT)
333 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
334 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {}
336 void printFileHeaders(const ELFO *Obj) override;
337 void printGroupSections(const ELFFile<ELFT> *Obj) override;
338 void printRelocations(const ELFO *Obj) override;
339 void printSections(const ELFO *Obj) override;
340 void printSymbols(const ELFO *Obj) override;
341 void printDynamicSymbols(const ELFO *Obj) override;
342 void printDynamicRelocations(const ELFO *Obj) override;
343 void printSymtabMessage(const ELFO *Obj, StringRef Name,
344 size_t Offset) override;
345 void printProgramHeaders(const ELFO *Obj) override;
346 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
347 void printNotes(const ELFFile<ELFT> *Obj) override;
348 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override;
349 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override;
356 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {}
357 Field(unsigned Col) : Str(""), Column(Col) {}
360 template <typename T, typename TEnum>
361 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) {
362 for (const auto &EnumItem : EnumValues)
363 if (EnumItem.Value == Value)
364 return EnumItem.AltName;
365 return to_hexString(Value, false);
368 formatted_raw_ostream &printField(struct Field F) {
370 OS.PadToColumn(F.Column);
375 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym,
376 StringRef StrTable, uint32_t Bucket);
377 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
378 const Elf_Rela &R, bool IsRela);
379 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
380 StringRef StrTable, bool IsDynamic) override;
381 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol,
382 const Elf_Sym *FirstSym);
383 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela);
384 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
385 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
386 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
387 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
390 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> {
392 TYPEDEF_ELF_TYPES(ELFT)
394 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
395 : DumpStyle<ELFT>(Dumper), W(W) {}
397 void printFileHeaders(const ELFO *Obj) override;
398 void printGroupSections(const ELFFile<ELFT> *Obj) override;
399 void printRelocations(const ELFO *Obj) override;
400 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj);
401 void printSections(const ELFO *Obj) override;
402 void printSymbols(const ELFO *Obj) override;
403 void printDynamicSymbols(const ELFO *Obj) override;
404 void printDynamicRelocations(const ELFO *Obj) override;
405 void printProgramHeaders(const ELFO *Obj) override;
406 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
407 void printNotes(const ELFFile<ELFT> *Obj) override;
408 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override;
409 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override;
412 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab);
413 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel);
414 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
415 StringRef StrTable, bool IsDynamic) override;
420 } // end anonymous namespace
424 template <class ELFT>
425 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj,
426 ScopedPrinter &Writer,
427 std::unique_ptr<ObjDumper> &Result) {
428 Result.reset(new ELFDumper<ELFT>(Obj, Writer));
429 return readobj_error::success;
432 std::error_code createELFDumper(const object::ObjectFile *Obj,
433 ScopedPrinter &Writer,
434 std::unique_ptr<ObjDumper> &Result) {
435 // Little-endian 32-bit
436 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
437 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
440 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
441 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
443 // Little-endian 64-bit
444 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
445 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
448 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
449 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
451 return readobj_error::unsupported_obj_file_format;
454 } // end namespace llvm
456 // Iterate through the versions needed section, and place each Elf_Vernaux
457 // in the VersionMap according to its index.
458 template <class ELFT>
459 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
460 unsigned vn_size = sec->sh_size; // Size of section in bytes
461 unsigned vn_count = sec->sh_info; // Number of Verneed entries
462 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
463 const char *sec_end = sec_start + vn_size;
464 // The first Verneed entry is at the start of the section.
465 const char *p = sec_start;
466 for (unsigned i = 0; i < vn_count; i++) {
467 if (p + sizeof(Elf_Verneed) > sec_end)
468 report_fatal_error("Section ended unexpectedly while scanning "
469 "version needed records.");
470 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
471 if (vn->vn_version != ELF::VER_NEED_CURRENT)
472 report_fatal_error("Unexpected verneed version");
473 // Iterate through the Vernaux entries
474 const char *paux = p + vn->vn_aux;
475 for (unsigned j = 0; j < vn->vn_cnt; j++) {
476 if (paux + sizeof(Elf_Vernaux) > sec_end)
477 report_fatal_error("Section ended unexpected while scanning auxiliary "
478 "version needed records.");
479 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
480 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
481 if (index >= VersionMap.size())
482 VersionMap.resize(index + 1);
483 VersionMap[index] = VersionMapEntry(vna);
484 paux += vna->vna_next;
490 // Iterate through the version definitions, and place each Elf_Verdef
491 // in the VersionMap according to its index.
492 template <class ELFT>
493 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
494 unsigned vd_size = sec->sh_size; // Size of section in bytes
495 unsigned vd_count = sec->sh_info; // Number of Verdef entries
496 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
497 const char *sec_end = sec_start + vd_size;
498 // The first Verdef entry is at the start of the section.
499 const char *p = sec_start;
500 for (unsigned i = 0; i < vd_count; i++) {
501 if (p + sizeof(Elf_Verdef) > sec_end)
502 report_fatal_error("Section ended unexpectedly while scanning "
503 "version definitions.");
504 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
505 if (vd->vd_version != ELF::VER_DEF_CURRENT)
506 report_fatal_error("Unexpected verdef version");
507 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
508 if (index >= VersionMap.size())
509 VersionMap.resize(index + 1);
510 VersionMap[index] = VersionMapEntry(vd);
515 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const {
516 // If there is no dynamic symtab or version table, there is nothing to do.
517 if (!DynSymRegion.Addr || !dot_gnu_version_sec)
520 // Has the VersionMap already been loaded?
521 if (VersionMap.size() > 0)
524 // The first two version indexes are reserved.
525 // Index 0 is LOCAL, index 1 is GLOBAL.
526 VersionMap.push_back(VersionMapEntry());
527 VersionMap.push_back(VersionMapEntry());
529 if (dot_gnu_version_d_sec)
530 LoadVersionDefs(dot_gnu_version_d_sec);
532 if (dot_gnu_version_r_sec)
533 LoadVersionNeeds(dot_gnu_version_r_sec);
536 template <typename ELFO, class ELFT>
537 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
538 const typename ELFO::Elf_Shdr *Sec,
540 DictScope SS(W, "Version symbols");
543 StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
544 W.printNumber("Section Name", Name, Sec->sh_name);
545 W.printHex("Address", Sec->sh_addr);
546 W.printHex("Offset", Sec->sh_offset);
547 W.printNumber("Link", Sec->sh_link);
549 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset;
550 StringRef StrTable = Dumper->getDynamicStringTable();
552 // Same number of entries in the dynamic symbol table (DT_SYMTAB).
553 ListScope Syms(W, "Symbols");
554 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) {
555 DictScope S(W, "Symbol");
556 std::string FullSymbolName =
557 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */);
558 W.printNumber("Version", *P);
559 W.printString("Name", FullSymbolName);
560 P += sizeof(typename ELFO::Elf_Half);
564 static const EnumEntry<unsigned> SymVersionFlags[] = {
565 {"Base", "BASE", VER_FLG_BASE},
566 {"Weak", "WEAK", VER_FLG_WEAK},
567 {"Info", "INFO", VER_FLG_INFO}};
569 template <typename ELFO, class ELFT>
570 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper,
572 const typename ELFO::Elf_Shdr *Sec,
574 using VerDef = typename ELFO::Elf_Verdef;
575 using VerdAux = typename ELFO::Elf_Verdaux;
577 DictScope SD(W, "SHT_GNU_verdef");
581 // The number of entries in the section SHT_GNU_verdef
582 // is determined by DT_VERDEFNUM tag.
583 unsigned VerDefsNum = 0;
584 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) {
585 if (Dyn.d_tag == DT_VERDEFNUM)
586 VerDefsNum = Dyn.d_un.d_val;
588 const uint8_t *SecStartAddress =
589 (const uint8_t *)Obj->base() + Sec->sh_offset;
590 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size;
591 const uint8_t *P = SecStartAddress;
592 const typename ELFO::Elf_Shdr *StrTab =
593 unwrapOrError(Obj->getSection(Sec->sh_link));
595 while (VerDefsNum--) {
596 if (P + sizeof(VerDef) > SecEndAddress)
597 report_fatal_error("invalid offset in the section");
599 auto *VD = reinterpret_cast<const VerDef *>(P);
600 DictScope Def(W, "Definition");
601 W.printNumber("Version", VD->vd_version);
602 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags));
603 W.printNumber("Index", VD->vd_ndx);
604 W.printNumber("Hash", VD->vd_hash);
605 W.printString("Name",
606 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
607 VD->getAux()->vda_name)));
609 report_fatal_error("at least one definition string must exist");
611 report_fatal_error("more than one predecessor is not expected");
613 if (VD->vd_cnt == 2) {
614 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next;
615 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux);
616 W.printString("Predecessor",
617 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
625 template <typename ELFO, class ELFT>
626 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper,
628 const typename ELFO::Elf_Shdr *Sec,
630 using VerNeed = typename ELFO::Elf_Verneed;
631 using VernAux = typename ELFO::Elf_Vernaux;
633 DictScope SD(W, "SHT_GNU_verneed");
637 unsigned VerNeedNum = 0;
638 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table())
639 if (Dyn.d_tag == DT_VERNEEDNUM)
640 VerNeedNum = Dyn.d_un.d_val;
642 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset;
643 const typename ELFO::Elf_Shdr *StrTab =
644 unwrapOrError(Obj->getSection(Sec->sh_link));
646 const uint8_t *P = SecData;
647 for (unsigned I = 0; I < VerNeedNum; ++I) {
648 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P);
649 DictScope Entry(W, "Dependency");
650 W.printNumber("Version", Need->vn_version);
651 W.printNumber("Count", Need->vn_cnt);
652 W.printString("FileName",
653 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
656 const uint8_t *PAux = P + Need->vn_aux;
657 for (unsigned J = 0; J < Need->vn_cnt; ++J) {
658 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux);
659 DictScope Entry(W, "Entry");
660 W.printNumber("Hash", Aux->vna_hash);
661 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags));
662 W.printNumber("Index", Aux->vna_other);
663 W.printString("Name",
664 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
666 PAux += Aux->vna_next;
672 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() {
673 // Dump version symbol section.
674 printVersionSymbolSection(this, Obj, dot_gnu_version_sec, W);
676 // Dump version definition section.
677 printVersionDefinitionSection(this, Obj, dot_gnu_version_d_sec, W);
679 // Dump version dependency section.
680 printVersionDependencySection(this, Obj, dot_gnu_version_r_sec, W);
683 template <typename ELFT>
684 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab,
686 bool &IsDefault) const {
687 // This is a dynamic symbol. Look in the GNU symbol version table.
688 if (!dot_gnu_version_sec) {
691 return StringRef("");
694 // Determine the position in the symbol table of this entry.
695 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) -
696 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) /
699 // Get the corresponding version index entry
700 const Elf_Versym *vs = unwrapOrError(
701 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index));
702 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
704 // Special markers for unversioned symbols.
705 if (version_index == ELF::VER_NDX_LOCAL ||
706 version_index == ELF::VER_NDX_GLOBAL) {
708 return StringRef("");
711 // Lookup this symbol in the version table
713 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
714 reportError("Invalid version entry");
715 const VersionMapEntry &entry = VersionMap[version_index];
717 // Get the version name string
719 if (entry.isVerdef()) {
720 // The first Verdaux entry holds the name.
721 name_offset = entry.getVerdef()->getAux()->vda_name;
722 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
724 name_offset = entry.getVernaux()->vna_name;
727 if (name_offset >= StrTab.size())
728 reportError("Invalid string offset");
729 return StringRef(StrTab.data() + name_offset);
732 template <typename ELFT>
733 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol,
735 bool IsDynamic) const {
736 StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable));
740 std::string FullSymbolName(SymbolName);
743 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault);
744 FullSymbolName += (IsDefault ? "@@" : "@");
745 FullSymbolName += Version;
746 return FullSymbolName;
749 template <typename ELFT>
750 void ELFDumper<ELFT>::getSectionNameIndex(const Elf_Sym *Symbol,
751 const Elf_Sym *FirstSym,
752 StringRef &SectionName,
753 unsigned &SectionIndex) const {
754 SectionIndex = Symbol->st_shndx;
755 if (Symbol->isUndefined())
756 SectionName = "Undefined";
757 else if (Symbol->isProcessorSpecific())
758 SectionName = "Processor Specific";
759 else if (Symbol->isOSSpecific())
760 SectionName = "Operating System Specific";
761 else if (Symbol->isAbsolute())
762 SectionName = "Absolute";
763 else if (Symbol->isCommon())
764 SectionName = "Common";
765 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX)
766 SectionName = "Reserved";
768 if (SectionIndex == SHN_XINDEX)
769 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>(
770 Symbol, FirstSym, ShndxTable));
771 const typename ELFT::Shdr *Sec =
772 unwrapOrError(Obj->getSection(SectionIndex));
773 SectionName = unwrapOrError(Obj->getSectionName(Sec));
777 template <class ELFO>
778 static const typename ELFO::Elf_Shdr *
779 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) {
780 for (const auto &Shdr : unwrapOrError(Obj->sections()))
781 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0)
786 template <class ELFO>
787 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj,
789 for (const auto &Shdr : unwrapOrError(Obj.sections())) {
790 if (Name == unwrapOrError(Obj.getSectionName(&Shdr)))
796 static const EnumEntry<unsigned> ElfClass[] = {
797 {"None", "none", ELF::ELFCLASSNONE},
798 {"32-bit", "ELF32", ELF::ELFCLASS32},
799 {"64-bit", "ELF64", ELF::ELFCLASS64},
802 static const EnumEntry<unsigned> ElfDataEncoding[] = {
803 {"None", "none", ELF::ELFDATANONE},
804 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB},
805 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB},
808 static const EnumEntry<unsigned> ElfObjectFileType[] = {
809 {"None", "NONE (none)", ELF::ET_NONE},
810 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL},
811 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC},
812 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN},
813 {"Core", "CORE (Core file)", ELF::ET_CORE},
816 static const EnumEntry<unsigned> ElfOSABI[] = {
817 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE},
818 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX},
819 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD},
820 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX},
821 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD},
822 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS},
823 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX},
824 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX},
825 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD},
826 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64},
827 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO},
828 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD},
829 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS},
830 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK},
831 {"AROS", "AROS", ELF::ELFOSABI_AROS},
832 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS},
833 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI},
834 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE}
837 static const EnumEntry<unsigned> AMDGPUElfOSABI[] = {
838 {"AMDGPU_HSA", "AMDGPU - HSA", ELF::ELFOSABI_AMDGPU_HSA},
839 {"AMDGPU_PAL", "AMDGPU - PAL", ELF::ELFOSABI_AMDGPU_PAL},
840 {"AMDGPU_MESA3D", "AMDGPU - MESA3D", ELF::ELFOSABI_AMDGPU_MESA3D}
843 static const EnumEntry<unsigned> ARMElfOSABI[] = {
844 {"ARM", "ARM", ELF::ELFOSABI_ARM}
847 static const EnumEntry<unsigned> C6000ElfOSABI[] = {
848 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI},
849 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX}
852 static const EnumEntry<unsigned> ElfMachineType[] = {
853 ENUM_ENT(EM_NONE, "None"),
854 ENUM_ENT(EM_M32, "WE32100"),
855 ENUM_ENT(EM_SPARC, "Sparc"),
856 ENUM_ENT(EM_386, "Intel 80386"),
857 ENUM_ENT(EM_68K, "MC68000"),
858 ENUM_ENT(EM_88K, "MC88000"),
859 ENUM_ENT(EM_IAMCU, "EM_IAMCU"),
860 ENUM_ENT(EM_860, "Intel 80860"),
861 ENUM_ENT(EM_MIPS, "MIPS R3000"),
862 ENUM_ENT(EM_S370, "IBM System/370"),
863 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"),
864 ENUM_ENT(EM_PARISC, "HPPA"),
865 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"),
866 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"),
867 ENUM_ENT(EM_960, "Intel 80960"),
868 ENUM_ENT(EM_PPC, "PowerPC"),
869 ENUM_ENT(EM_PPC64, "PowerPC64"),
870 ENUM_ENT(EM_S390, "IBM S/390"),
871 ENUM_ENT(EM_SPU, "SPU"),
872 ENUM_ENT(EM_V800, "NEC V800 series"),
873 ENUM_ENT(EM_FR20, "Fujistsu FR20"),
874 ENUM_ENT(EM_RH32, "TRW RH-32"),
875 ENUM_ENT(EM_RCE, "Motorola RCE"),
876 ENUM_ENT(EM_ARM, "ARM"),
877 ENUM_ENT(EM_ALPHA, "EM_ALPHA"),
878 ENUM_ENT(EM_SH, "Hitachi SH"),
879 ENUM_ENT(EM_SPARCV9, "Sparc v9"),
880 ENUM_ENT(EM_TRICORE, "Siemens Tricore"),
881 ENUM_ENT(EM_ARC, "ARC"),
882 ENUM_ENT(EM_H8_300, "Hitachi H8/300"),
883 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"),
884 ENUM_ENT(EM_H8S, "Hitachi H8S"),
885 ENUM_ENT(EM_H8_500, "Hitachi H8/500"),
886 ENUM_ENT(EM_IA_64, "Intel IA-64"),
887 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"),
888 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"),
889 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"),
890 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"),
891 ENUM_ENT(EM_PCP, "Siemens PCP"),
892 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"),
893 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"),
894 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"),
895 ENUM_ENT(EM_ME16, "Toyota ME16 processor"),
896 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"),
897 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"),
898 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"),
899 ENUM_ENT(EM_PDSP, "Sony DSP processor"),
900 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"),
901 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"),
902 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"),
903 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"),
904 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"),
905 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"),
906 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"),
907 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"),
908 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"),
909 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"),
910 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"),
911 ENUM_ENT(EM_VAX, "Digital VAX"),
912 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"),
913 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"),
914 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"),
915 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"),
916 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"),
917 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"),
918 ENUM_ENT(EM_PRISM, "Vitesse Prism"),
919 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"),
920 ENUM_ENT(EM_FR30, "Fujitsu FR30"),
921 ENUM_ENT(EM_D10V, "Mitsubishi D10V"),
922 ENUM_ENT(EM_D30V, "Mitsubishi D30V"),
923 ENUM_ENT(EM_V850, "NEC v850"),
924 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"),
925 ENUM_ENT(EM_MN10300, "Matsushita MN10300"),
926 ENUM_ENT(EM_MN10200, "Matsushita MN10200"),
927 ENUM_ENT(EM_PJ, "picoJava"),
928 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"),
929 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"),
930 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"),
931 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"),
932 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"),
933 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"),
934 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"),
935 ENUM_ENT(EM_SNP1K, "EM_SNP1K"),
936 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"),
937 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"),
938 ENUM_ENT(EM_MAX, "MAX Processor"),
939 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"),
940 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"),
941 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"),
942 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"),
943 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"),
944 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"),
945 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"),
946 ENUM_ENT(EM_UNICORE, "Unicore"),
947 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"),
948 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"),
949 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"),
950 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"),
951 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"),
952 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"),
953 ENUM_ENT(EM_M16C, "Renesas M16C"),
954 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"),
955 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"),
956 ENUM_ENT(EM_M32C, "Renesas M32C"),
957 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"),
958 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"),
959 ENUM_ENT(EM_SHARC, "EM_SHARC"),
960 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"),
961 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"),
962 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"),
963 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"),
964 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"),
965 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"),
966 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"),
967 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"),
968 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"),
969 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"),
970 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"),
971 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"),
972 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"),
973 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"),
974 ENUM_ENT(EM_8051, "Intel 8051 and variants"),
975 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"),
976 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"),
977 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"),
978 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"),
979 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"),
980 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"),
981 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"),
982 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"),
983 ENUM_ENT(EM_RX, "Renesas RX"),
984 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"),
985 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"),
986 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"),
987 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"),
988 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"),
989 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"),
990 ENUM_ENT(EM_L10M, "EM_L10M"),
991 ENUM_ENT(EM_K10M, "EM_K10M"),
992 ENUM_ENT(EM_AARCH64, "AArch64"),
993 ENUM_ENT(EM_AVR32, "Atmel Corporation 32-bit microprocessor family"),
994 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"),
995 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"),
996 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"),
997 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"),
998 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"),
999 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"),
1000 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"),
1001 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"),
1002 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"),
1003 ENUM_ENT(EM_OPEN8, "EM_OPEN8"),
1004 ENUM_ENT(EM_RL78, "Renesas RL78"),
1005 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"),
1006 ENUM_ENT(EM_78KOR, "EM_78KOR"),
1007 ENUM_ENT(EM_56800EX, "EM_56800EX"),
1008 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"),
1009 ENUM_ENT(EM_RISCV, "RISC-V"),
1010 ENUM_ENT(EM_WEBASSEMBLY, "EM_WEBASSEMBLY"),
1011 ENUM_ENT(EM_LANAI, "EM_LANAI"),
1012 ENUM_ENT(EM_BPF, "EM_BPF"),
1015 static const EnumEntry<unsigned> ElfSymbolBindings[] = {
1016 {"Local", "LOCAL", ELF::STB_LOCAL},
1017 {"Global", "GLOBAL", ELF::STB_GLOBAL},
1018 {"Weak", "WEAK", ELF::STB_WEAK},
1019 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}};
1021 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = {
1022 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT},
1023 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL},
1024 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN},
1025 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}};
1027 static const EnumEntry<unsigned> ElfSymbolTypes[] = {
1028 {"None", "NOTYPE", ELF::STT_NOTYPE},
1029 {"Object", "OBJECT", ELF::STT_OBJECT},
1030 {"Function", "FUNC", ELF::STT_FUNC},
1031 {"Section", "SECTION", ELF::STT_SECTION},
1032 {"File", "FILE", ELF::STT_FILE},
1033 {"Common", "COMMON", ELF::STT_COMMON},
1034 {"TLS", "TLS", ELF::STT_TLS},
1035 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}};
1037 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = {
1038 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL }
1041 static const char *getGroupType(uint32_t Flag) {
1042 if (Flag & ELF::GRP_COMDAT)
1048 static const EnumEntry<unsigned> ElfSectionFlags[] = {
1049 ENUM_ENT(SHF_WRITE, "W"),
1050 ENUM_ENT(SHF_ALLOC, "A"),
1051 ENUM_ENT(SHF_EXCLUDE, "E"),
1052 ENUM_ENT(SHF_EXECINSTR, "X"),
1053 ENUM_ENT(SHF_MERGE, "M"),
1054 ENUM_ENT(SHF_STRINGS, "S"),
1055 ENUM_ENT(SHF_INFO_LINK, "I"),
1056 ENUM_ENT(SHF_LINK_ORDER, "L"),
1057 ENUM_ENT(SHF_OS_NONCONFORMING, "o"),
1058 ENUM_ENT(SHF_GROUP, "G"),
1059 ENUM_ENT(SHF_TLS, "T"),
1060 ENUM_ENT(SHF_MASKOS, "o"),
1061 ENUM_ENT(SHF_MASKPROC, "p"),
1062 ENUM_ENT_1(SHF_COMPRESSED),
1065 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = {
1066 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
1067 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION)
1070 static const EnumEntry<unsigned> ElfARMSectionFlags[] = {
1071 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE)
1074 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = {
1075 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL)
1078 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = {
1079 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES),
1080 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ),
1081 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ),
1082 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP),
1083 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ),
1084 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ),
1085 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ),
1086 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING )
1089 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = {
1090 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE)
1093 static std::string getGNUFlags(uint64_t Flags) {
1095 for (auto Entry : ElfSectionFlags) {
1096 uint64_t Flag = Entry.Value & Flags;
1097 Flags &= ~Entry.Value;
1099 case ELF::SHF_WRITE:
1100 case ELF::SHF_ALLOC:
1101 case ELF::SHF_EXECINSTR:
1102 case ELF::SHF_MERGE:
1103 case ELF::SHF_STRINGS:
1104 case ELF::SHF_INFO_LINK:
1105 case ELF::SHF_LINK_ORDER:
1106 case ELF::SHF_OS_NONCONFORMING:
1107 case ELF::SHF_GROUP:
1109 case ELF::SHF_EXCLUDE:
1110 Str += Entry.AltName;
1113 if (Flag & ELF::SHF_MASKOS)
1115 else if (Flag & ELF::SHF_MASKPROC)
1124 static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
1125 // Check potentially overlapped processor-specific
1126 // program header type.
1130 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
1133 case ELF::EM_MIPS_RS3_LE:
1135 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
1136 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
1137 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
1138 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS);
1143 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
1144 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
1145 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
1146 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
1147 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
1148 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
1149 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
1150 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
1152 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
1153 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
1155 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
1156 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
1158 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE);
1159 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED);
1160 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA);
1166 static std::string getElfPtType(unsigned Arch, unsigned Type) {
1168 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL)
1169 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD)
1170 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC)
1171 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP)
1172 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE)
1173 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB)
1174 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR)
1175 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS)
1176 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME)
1177 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND)
1178 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK)
1179 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO)
1181 // All machine specific PT_* types
1184 if (Type == ELF::PT_ARM_EXIDX)
1188 case ELF::EM_MIPS_RS3_LE:
1190 case PT_MIPS_REGINFO:
1192 case PT_MIPS_RTPROC:
1194 case PT_MIPS_OPTIONS:
1196 case PT_MIPS_ABIFLAGS:
1202 return std::string("<unknown>: ") + to_string(format_hex(Type, 1));
1205 static const EnumEntry<unsigned> ElfSegmentFlags[] = {
1206 LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
1207 LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
1208 LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
1211 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
1212 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER),
1213 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC),
1214 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC),
1215 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2),
1216 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE),
1217 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64),
1218 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008),
1219 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32),
1220 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64),
1221 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32),
1222 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64),
1223 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900),
1224 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010),
1225 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100),
1226 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650),
1227 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120),
1228 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111),
1229 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1),
1230 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON),
1231 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR),
1232 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2),
1233 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3),
1234 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400),
1235 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900),
1236 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500),
1237 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000),
1238 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E),
1239 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F),
1240 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A),
1241 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS),
1242 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16),
1243 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX),
1244 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1),
1245 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2),
1246 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3),
1247 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4),
1248 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5),
1249 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32),
1250 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64),
1251 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2),
1252 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2),
1253 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6),
1254 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6)
1257 static const EnumEntry<unsigned> ElfHeaderAMDGPUFlags[] = {
1258 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_ARCH_NONE),
1259 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_ARCH_R600),
1260 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_ARCH_GCN)
1263 static const EnumEntry<unsigned> ElfHeaderRISCVFlags[] = {
1264 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_RVC),
1265 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_SINGLE),
1266 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_DOUBLE),
1267 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_QUAD),
1268 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_RVE)
1271 static const EnumEntry<unsigned> ElfSymOtherFlags[] = {
1272 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL),
1273 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN),
1274 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED)
1277 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = {
1278 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1279 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1280 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC),
1281 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS)
1284 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = {
1285 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1286 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1287 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16)
1290 static const char *getElfMipsOptionsOdkType(unsigned Odk) {
1292 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL);
1293 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO);
1294 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS);
1295 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD);
1296 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH);
1297 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL);
1298 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS);
1299 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND);
1300 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR);
1301 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP);
1302 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT);
1303 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE);
1309 template <typename ELFT>
1310 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer)
1311 : ObjDumper(Writer), Obj(Obj) {
1312 SmallVector<const Elf_Phdr *, 4> LoadSegments;
1313 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
1314 if (Phdr.p_type == ELF::PT_DYNAMIC) {
1315 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn));
1318 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0)
1320 LoadSegments.push_back(&Phdr);
1323 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
1324 switch (Sec.sh_type) {
1325 case ELF::SHT_SYMTAB:
1326 if (DotSymtabSec != nullptr)
1327 reportError("Multiple SHT_SYMTAB");
1328 DotSymtabSec = &Sec;
1330 case ELF::SHT_DYNSYM:
1331 if (DynSymRegion.Size)
1332 reportError("Multiple SHT_DYNSYM");
1333 DynSymRegion = createDRIFrom(&Sec);
1334 // This is only used (if Elf_Shdr present)for naming section in GNU style
1335 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec));
1336 DynamicStringTable = unwrapOrError(Obj->getStringTableForSymtab(Sec));
1338 case ELF::SHT_SYMTAB_SHNDX:
1339 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec));
1341 case ELF::SHT_GNU_versym:
1342 if (dot_gnu_version_sec != nullptr)
1343 reportError("Multiple SHT_GNU_versym");
1344 dot_gnu_version_sec = &Sec;
1346 case ELF::SHT_GNU_verdef:
1347 if (dot_gnu_version_d_sec != nullptr)
1348 reportError("Multiple SHT_GNU_verdef");
1349 dot_gnu_version_d_sec = &Sec;
1351 case ELF::SHT_GNU_verneed:
1352 if (dot_gnu_version_r_sec != nullptr)
1353 reportError("Multiple SHT_GNU_verneed");
1354 dot_gnu_version_r_sec = &Sec;
1359 parseDynamicTable(LoadSegments);
1361 if (opts::Output == opts::GNU)
1362 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this));
1364 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this));
1367 template <typename ELFT>
1368 void ELFDumper<ELFT>::parseDynamicTable(
1369 ArrayRef<const Elf_Phdr *> LoadSegments) {
1370 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * {
1371 const Elf_Phdr *const *I =
1372 std::upper_bound(LoadSegments.begin(), LoadSegments.end(), VAddr,
1373 [](uint64_t VAddr, const Elf_Phdr_Impl<ELFT> *Phdr) {
1374 return VAddr < Phdr->p_vaddr;
1376 if (I == LoadSegments.begin())
1377 report_fatal_error("Virtual address is not in any segment");
1379 const Elf_Phdr &Phdr = **I;
1380 uint64_t Delta = VAddr - Phdr.p_vaddr;
1381 if (Delta >= Phdr.p_filesz)
1382 report_fatal_error("Virtual address is not in any segment");
1383 return Obj->base() + Phdr.p_offset + Delta;
1386 uint64_t SONameOffset = 0;
1387 const char *StringTableBegin = nullptr;
1388 uint64_t StringTableSize = 0;
1389 for (const Elf_Dyn &Dyn : dynamic_table()) {
1390 switch (Dyn.d_tag) {
1393 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr()));
1395 case ELF::DT_GNU_HASH:
1397 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr()));
1399 case ELF::DT_STRTAB:
1400 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr());
1403 StringTableSize = Dyn.getVal();
1405 case ELF::DT_SYMTAB:
1406 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr());
1407 DynSymRegion.EntSize = sizeof(Elf_Sym);
1410 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr());
1412 case ELF::DT_RELASZ:
1413 DynRelaRegion.Size = Dyn.getVal();
1415 case ELF::DT_RELAENT:
1416 DynRelaRegion.EntSize = Dyn.getVal();
1418 case ELF::DT_SONAME:
1419 SONameOffset = Dyn.getVal();
1422 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1425 DynRelRegion.Size = Dyn.getVal();
1427 case ELF::DT_RELENT:
1428 DynRelRegion.EntSize = Dyn.getVal();
1430 case ELF::DT_PLTREL:
1431 if (Dyn.getVal() == DT_REL)
1432 DynPLTRelRegion.EntSize = sizeof(Elf_Rel);
1433 else if (Dyn.getVal() == DT_RELA)
1434 DynPLTRelRegion.EntSize = sizeof(Elf_Rela);
1436 reportError(Twine("unknown DT_PLTREL value of ") +
1437 Twine((uint64_t)Dyn.getVal()));
1439 case ELF::DT_JMPREL:
1440 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1442 case ELF::DT_PLTRELSZ:
1443 DynPLTRelRegion.Size = Dyn.getVal();
1447 if (StringTableBegin)
1448 DynamicStringTable = StringRef(StringTableBegin, StringTableSize);
1450 SOName = getDynamicString(SONameOffset);
1453 template <typename ELFT>
1454 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const {
1455 return DynRelRegion.getAsArrayRef<Elf_Rel>();
1458 template <typename ELFT>
1459 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const {
1460 return DynRelaRegion.getAsArrayRef<Elf_Rela>();
1463 template<class ELFT>
1464 void ELFDumper<ELFT>::printFileHeaders() {
1465 ELFDumperStyle->printFileHeaders(Obj);
1468 template<class ELFT>
1469 void ELFDumper<ELFT>::printSections() {
1470 ELFDumperStyle->printSections(Obj);
1473 template<class ELFT>
1474 void ELFDumper<ELFT>::printRelocations() {
1475 ELFDumperStyle->printRelocations(Obj);
1478 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() {
1479 ELFDumperStyle->printProgramHeaders(Obj);
1482 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() {
1483 ELFDumperStyle->printDynamicRelocations(Obj);
1486 template<class ELFT>
1487 void ELFDumper<ELFT>::printSymbols() {
1488 ELFDumperStyle->printSymbols(Obj);
1491 template<class ELFT>
1492 void ELFDumper<ELFT>::printDynamicSymbols() {
1493 ELFDumperStyle->printDynamicSymbols(Obj);
1496 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() {
1497 ELFDumperStyle->printHashHistogram(Obj);
1500 template <class ELFT> void ELFDumper<ELFT>::printNotes() {
1501 ELFDumperStyle->printNotes(Obj);
1504 #define LLVM_READOBJ_TYPE_CASE(name) \
1505 case DT_##name: return #name
1507 static const char *getTypeString(unsigned Arch, uint64_t Type) {
1511 LLVM_READOBJ_TYPE_CASE(HEXAGON_SYMSZ);
1512 LLVM_READOBJ_TYPE_CASE(HEXAGON_VER);
1513 LLVM_READOBJ_TYPE_CASE(HEXAGON_PLT);
1517 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL);
1518 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION);
1519 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS);
1520 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS);
1521 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO);
1522 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO);
1523 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO);
1524 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM);
1525 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP);
1526 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT);
1527 LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS);
1531 LLVM_READOBJ_TYPE_CASE(ANDROID_REL);
1532 LLVM_READOBJ_TYPE_CASE(ANDROID_RELSZ);
1533 LLVM_READOBJ_TYPE_CASE(ANDROID_RELA);
1534 LLVM_READOBJ_TYPE_CASE(ANDROID_RELASZ);
1535 LLVM_READOBJ_TYPE_CASE(BIND_NOW);
1536 LLVM_READOBJ_TYPE_CASE(DEBUG);
1537 LLVM_READOBJ_TYPE_CASE(FINI);
1538 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
1539 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
1540 LLVM_READOBJ_TYPE_CASE(FLAGS);
1541 LLVM_READOBJ_TYPE_CASE(FLAGS_1);
1542 LLVM_READOBJ_TYPE_CASE(HASH);
1543 LLVM_READOBJ_TYPE_CASE(INIT);
1544 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
1545 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
1546 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
1547 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
1548 LLVM_READOBJ_TYPE_CASE(JMPREL);
1549 LLVM_READOBJ_TYPE_CASE(NEEDED);
1550 LLVM_READOBJ_TYPE_CASE(NULL);
1551 LLVM_READOBJ_TYPE_CASE(PLTGOT);
1552 LLVM_READOBJ_TYPE_CASE(PLTREL);
1553 LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
1554 LLVM_READOBJ_TYPE_CASE(REL);
1555 LLVM_READOBJ_TYPE_CASE(RELA);
1556 LLVM_READOBJ_TYPE_CASE(RELENT);
1557 LLVM_READOBJ_TYPE_CASE(RELSZ);
1558 LLVM_READOBJ_TYPE_CASE(RELAENT);
1559 LLVM_READOBJ_TYPE_CASE(RELASZ);
1560 LLVM_READOBJ_TYPE_CASE(RPATH);
1561 LLVM_READOBJ_TYPE_CASE(RUNPATH);
1562 LLVM_READOBJ_TYPE_CASE(SONAME);
1563 LLVM_READOBJ_TYPE_CASE(STRSZ);
1564 LLVM_READOBJ_TYPE_CASE(STRTAB);
1565 LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
1566 LLVM_READOBJ_TYPE_CASE(SYMENT);
1567 LLVM_READOBJ_TYPE_CASE(SYMTAB);
1568 LLVM_READOBJ_TYPE_CASE(TEXTREL);
1569 LLVM_READOBJ_TYPE_CASE(VERDEF);
1570 LLVM_READOBJ_TYPE_CASE(VERDEFNUM);
1571 LLVM_READOBJ_TYPE_CASE(VERNEED);
1572 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM);
1573 LLVM_READOBJ_TYPE_CASE(VERSYM);
1574 LLVM_READOBJ_TYPE_CASE(RELACOUNT);
1575 LLVM_READOBJ_TYPE_CASE(RELCOUNT);
1576 LLVM_READOBJ_TYPE_CASE(GNU_HASH);
1577 LLVM_READOBJ_TYPE_CASE(TLSDESC_PLT);
1578 LLVM_READOBJ_TYPE_CASE(TLSDESC_GOT);
1579 LLVM_READOBJ_TYPE_CASE(AUXILIARY);
1580 LLVM_READOBJ_TYPE_CASE(FILTER);
1581 default: return "unknown";
1585 #undef LLVM_READOBJ_TYPE_CASE
1587 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
1588 { #enum, prefix##_##enum }
1590 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
1591 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
1592 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
1593 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
1594 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
1595 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
1598 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
1599 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW),
1600 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL),
1601 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP),
1602 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE),
1603 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR),
1604 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST),
1605 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN),
1606 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN),
1607 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT),
1608 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS),
1609 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE),
1610 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB),
1611 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP),
1612 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT),
1613 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE),
1614 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE),
1615 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT),
1616 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF),
1617 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS),
1618 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR),
1619 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED),
1620 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
1621 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
1622 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
1623 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
1626 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
1627 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
1628 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
1629 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
1630 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
1631 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
1632 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
1633 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
1634 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
1635 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
1636 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
1637 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
1638 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
1639 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
1640 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
1641 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
1642 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
1645 #undef LLVM_READOBJ_DT_FLAG_ENT
1647 template <typename T, typename TFlag>
1648 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
1649 using FlagEntry = EnumEntry<TFlag>;
1650 using FlagVector = SmallVector<FlagEntry, 10>;
1651 FlagVector SetFlags;
1653 for (const auto &Flag : Flags) {
1654 if (Flag.Value == 0)
1657 if ((Value & Flag.Value) == Flag.Value)
1658 SetFlags.push_back(Flag);
1661 for (const auto &Flag : SetFlags) {
1662 OS << Flag.Name << " ";
1666 template <class ELFT>
1667 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const {
1668 if (Value >= DynamicStringTable.size())
1669 reportError("Invalid dynamic string table reference");
1670 return StringRef(DynamicStringTable.data() + Value);
1673 static void printLibrary(raw_ostream &OS, const Twine &Tag, const Twine &Name) {
1674 OS << Tag << ": [" << Name << "]";
1677 template <class ELFT>
1678 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) {
1679 raw_ostream &OS = W.getOStream();
1680 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64;
1683 if (Value == DT_REL) {
1686 } else if (Value == DT_RELA) {
1702 case DT_PREINIT_ARRAY:
1709 case DT_MIPS_BASE_ADDRESS:
1710 case DT_MIPS_GOTSYM:
1711 case DT_MIPS_RLD_MAP:
1712 case DT_MIPS_RLD_MAP_REL:
1713 case DT_MIPS_PLTGOT:
1714 case DT_MIPS_OPTIONS:
1715 OS << format(ConvChar, Value);
1721 case DT_MIPS_RLD_VERSION:
1722 case DT_MIPS_LOCAL_GOTNO:
1723 case DT_MIPS_SYMTABNO:
1724 case DT_MIPS_UNREFEXTNO:
1734 case DT_INIT_ARRAYSZ:
1735 case DT_FINI_ARRAYSZ:
1736 case DT_PREINIT_ARRAYSZ:
1737 case DT_ANDROID_RELSZ:
1738 case DT_ANDROID_RELASZ:
1739 OS << Value << " (bytes)";
1742 printLibrary(OS, "Shared library", getDynamicString(Value));
1745 printLibrary(OS, "Library soname", getDynamicString(Value));
1748 printLibrary(OS, "Auxiliary library", getDynamicString(Value));
1751 printLibrary(OS, "Filter library", getDynamicString(Value));
1755 OS << getDynamicString(Value);
1758 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
1761 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
1764 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS);
1767 OS << format(ConvChar, Value);
1772 template<class ELFT>
1773 void ELFDumper<ELFT>::printUnwindInfo() {
1774 W.startLine() << "UnwindInfo not implemented.\n";
1779 template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() {
1780 const unsigned Machine = Obj->getHeader()->e_machine;
1781 if (Machine == EM_ARM) {
1782 ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx(
1783 W, Obj, DotSymtabSec);
1784 return Ctx.PrintUnwindInformation();
1786 W.startLine() << "UnwindInfo not implemented.\n";
1789 } // end anonymous namespace
1791 template<class ELFT>
1792 void ELFDumper<ELFT>::printDynamicTable() {
1793 auto I = dynamic_table().begin();
1794 auto E = dynamic_table().end();
1800 while (I != E && E->getTag() == ELF::DT_NULL)
1802 if (E->getTag() != ELF::DT_NULL)
1806 ptrdiff_t Total = std::distance(I, E);
1810 raw_ostream &OS = W.getOStream();
1811 W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
1813 bool Is64 = ELFT::Is64Bits;
1816 << " Tag" << (Is64 ? " " : " ") << "Type"
1817 << " " << "Name/Value\n";
1819 const Elf_Dyn &Entry = *I;
1820 uintX_t Tag = Entry.getTag();
1822 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " "
1823 << format("%-21s", getTypeString(Obj->getHeader()->e_machine, Tag));
1824 printValue(Tag, Entry.getVal());
1828 W.startLine() << "]\n";
1831 template<class ELFT>
1832 void ELFDumper<ELFT>::printNeededLibraries() {
1833 ListScope D(W, "NeededLibraries");
1835 using LibsTy = std::vector<StringRef>;
1838 for (const auto &Entry : dynamic_table())
1839 if (Entry.d_tag == ELF::DT_NEEDED)
1840 Libs.push_back(getDynamicString(Entry.d_un.d_val));
1842 std::stable_sort(Libs.begin(), Libs.end());
1844 for (const auto &L : Libs) {
1845 outs() << " " << L << "\n";
1850 template <typename ELFT>
1851 void ELFDumper<ELFT>::printHashTable() {
1852 DictScope D(W, "HashTable");
1855 W.printNumber("Num Buckets", HashTable->nbucket);
1856 W.printNumber("Num Chains", HashTable->nchain);
1857 W.printList("Buckets", HashTable->buckets());
1858 W.printList("Chains", HashTable->chains());
1861 template <typename ELFT>
1862 void ELFDumper<ELFT>::printGnuHashTable() {
1863 DictScope D(W, "GnuHashTable");
1866 W.printNumber("Num Buckets", GnuHashTable->nbuckets);
1867 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx);
1868 W.printNumber("Num Mask Words", GnuHashTable->maskwords);
1869 W.printNumber("Shift Count", GnuHashTable->shift2);
1870 W.printHexList("Bloom Filter", GnuHashTable->filter());
1871 W.printList("Buckets", GnuHashTable->buckets());
1872 Elf_Sym_Range Syms = dynamic_symbols();
1873 unsigned NumSyms = std::distance(Syms.begin(), Syms.end());
1875 reportError("No dynamic symbol section");
1876 W.printHexList("Values", GnuHashTable->values(NumSyms));
1879 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() {
1880 outs() << "LoadName: " << SOName << '\n';
1883 template <class ELFT>
1884 void ELFDumper<ELFT>::printAttributes() {
1885 W.startLine() << "Attributes not implemented.\n";
1890 template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() {
1891 if (Obj->getHeader()->e_machine != EM_ARM) {
1892 W.startLine() << "Attributes not implemented.\n";
1896 DictScope BA(W, "BuildAttributes");
1897 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
1898 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES)
1901 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec));
1902 if (Contents[0] != ARMBuildAttrs::Format_Version) {
1903 errs() << "unrecognised FormatVersion: 0x"
1904 << Twine::utohexstr(Contents[0]) << '\n';
1908 W.printHex("FormatVersion", Contents[0]);
1909 if (Contents.size() == 1)
1912 ARMAttributeParser(&W).Parse(Contents, true);
1916 template <class ELFT> class MipsGOTParser {
1918 TYPEDEF_ELF_TYPES(ELFT)
1919 using Entry = typename ELFO::Elf_Addr;
1920 using Entries = ArrayRef<Entry>;
1922 const bool IsStatic;
1923 const ELFO * const Obj;
1925 MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, Elf_Sym_Range DynSyms);
1927 bool hasGot() const { return !GotEntries.empty(); }
1928 bool hasPlt() const { return !PltEntries.empty(); }
1930 uint64_t getGp() const;
1932 const Entry *getGotLazyResolver() const;
1933 const Entry *getGotModulePointer() const;
1934 const Entry *getPltLazyResolver() const;
1935 const Entry *getPltModulePointer() const;
1937 Entries getLocalEntries() const;
1938 Entries getGlobalEntries() const;
1939 Entries getOtherEntries() const;
1940 Entries getPltEntries() const;
1942 uint64_t getGotAddress(const Entry * E) const;
1943 int64_t getGotOffset(const Entry * E) const;
1944 const Elf_Sym *getGotSym(const Entry *E) const;
1946 uint64_t getPltAddress(const Entry * E) const;
1947 const Elf_Sym *getPltSym(const Entry *E) const;
1949 StringRef getPltStrTable() const { return PltStrTable; }
1952 const Elf_Shdr *GotSec;
1956 const Elf_Shdr *PltSec;
1957 const Elf_Shdr *PltRelSec;
1958 const Elf_Shdr *PltSymTable;
1959 Elf_Sym_Range GotDynSyms;
1960 StringRef PltStrTable;
1966 } // end anonymous namespace
1968 template <class ELFT>
1969 MipsGOTParser<ELFT>::MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable,
1970 Elf_Sym_Range DynSyms)
1971 : IsStatic(DynTable.empty()), Obj(Obj), GotSec(nullptr), LocalNum(0),
1972 GlobalNum(0), PltSec(nullptr), PltRelSec(nullptr), PltSymTable(nullptr) {
1973 // See "Global Offset Table" in Chapter 5 in the following document
1974 // for detailed GOT description.
1975 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
1977 // Find static GOT secton.
1979 GotSec = findSectionByName(*Obj, ".got");
1981 reportError("Cannot find .got section");
1983 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec));
1984 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()),
1985 Content.size() / sizeof(Entry));
1986 LocalNum = GotEntries.size();
1990 // Lookup dynamic table tags which define GOT/PLT layouts.
1991 Optional<uint64_t> DtPltGot;
1992 Optional<uint64_t> DtLocalGotNum;
1993 Optional<uint64_t> DtGotSym;
1994 Optional<uint64_t> DtMipsPltGot;
1995 Optional<uint64_t> DtJmpRel;
1996 for (const auto &Entry : DynTable) {
1997 switch (Entry.getTag()) {
1998 case ELF::DT_PLTGOT:
1999 DtPltGot = Entry.getVal();
2001 case ELF::DT_MIPS_LOCAL_GOTNO:
2002 DtLocalGotNum = Entry.getVal();
2004 case ELF::DT_MIPS_GOTSYM:
2005 DtGotSym = Entry.getVal();
2007 case ELF::DT_MIPS_PLTGOT:
2008 DtMipsPltGot = Entry.getVal();
2010 case ELF::DT_JMPREL:
2011 DtJmpRel = Entry.getVal();
2016 // Find dynamic GOT section.
2017 if (DtPltGot || DtLocalGotNum || DtGotSym) {
2019 report_fatal_error("Cannot find PLTGOT dynamic table tag.");
2021 report_fatal_error("Cannot find MIPS_LOCAL_GOTNO dynamic table tag.");
2023 report_fatal_error("Cannot find MIPS_GOTSYM dynamic table tag.");
2025 size_t DynSymTotal = DynSyms.size();
2026 if (*DtGotSym > DynSymTotal)
2027 reportError("MIPS_GOTSYM exceeds a number of dynamic symbols");
2029 GotSec = findNotEmptySectionByAddress(Obj, *DtPltGot);
2031 reportError("There is no not empty GOT section at 0x" +
2032 Twine::utohexstr(*DtPltGot));
2034 LocalNum = *DtLocalGotNum;
2035 GlobalNum = DynSymTotal - *DtGotSym;
2037 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec));
2038 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()),
2039 Content.size() / sizeof(Entry));
2040 GotDynSyms = DynSyms.drop_front(*DtGotSym);
2043 // Find PLT section.
2044 if (DtMipsPltGot || DtJmpRel) {
2046 report_fatal_error("Cannot find MIPS_PLTGOT dynamic table tag.");
2048 report_fatal_error("Cannot find JMPREL dynamic table tag.");
2050 PltSec = findNotEmptySectionByAddress(Obj, *DtMipsPltGot);
2052 report_fatal_error("There is no not empty PLTGOT section at 0x " +
2053 Twine::utohexstr(*DtMipsPltGot));
2055 PltRelSec = findNotEmptySectionByAddress(Obj, *DtJmpRel);
2057 report_fatal_error("There is no not empty RELPLT section at 0x" +
2058 Twine::utohexstr(*DtJmpRel));
2060 ArrayRef<uint8_t> PltContent =
2061 unwrapOrError(Obj->getSectionContents(PltSec));
2062 PltEntries = Entries(reinterpret_cast<const Entry *>(PltContent.data()),
2063 PltContent.size() / sizeof(Entry));
2065 PltSymTable = unwrapOrError(Obj->getSection(PltRelSec->sh_link));
2066 PltStrTable = unwrapOrError(Obj->getStringTableForSymtab(*PltSymTable));
2070 template <class ELFT> uint64_t MipsGOTParser<ELFT>::getGp() const {
2071 return GotSec->sh_addr + 0x7ff0;
2074 template <class ELFT>
2075 const typename MipsGOTParser<ELFT>::Entry *
2076 MipsGOTParser<ELFT>::getGotLazyResolver() const {
2077 return LocalNum > 0 ? &GotEntries[0] : nullptr;
2080 template <class ELFT>
2081 const typename MipsGOTParser<ELFT>::Entry *
2082 MipsGOTParser<ELFT>::getGotModulePointer() const {
2085 const Entry &E = GotEntries[1];
2086 if ((E >> (sizeof(Entry) * 8 - 1)) == 0)
2091 template <class ELFT>
2092 typename MipsGOTParser<ELFT>::Entries
2093 MipsGOTParser<ELFT>::getLocalEntries() const {
2094 size_t Skip = getGotModulePointer() ? 2 : 1;
2095 if (LocalNum - Skip <= 0)
2097 return GotEntries.slice(Skip, LocalNum - Skip);
2100 template <class ELFT>
2101 typename MipsGOTParser<ELFT>::Entries
2102 MipsGOTParser<ELFT>::getGlobalEntries() const {
2105 return GotEntries.slice(LocalNum, GlobalNum);
2108 template <class ELFT>
2109 typename MipsGOTParser<ELFT>::Entries
2110 MipsGOTParser<ELFT>::getOtherEntries() const {
2111 size_t OtherNum = GotEntries.size() - LocalNum - GlobalNum;
2114 return GotEntries.slice(LocalNum + GlobalNum, OtherNum);
2117 template <class ELFT>
2118 uint64_t MipsGOTParser<ELFT>::getGotAddress(const Entry *E) const {
2119 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry);
2120 return GotSec->sh_addr + Offset;
2123 template <class ELFT>
2124 int64_t MipsGOTParser<ELFT>::getGotOffset(const Entry *E) const {
2125 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry);
2126 return Offset - 0x7ff0;
2129 template <class ELFT>
2130 const typename MipsGOTParser<ELFT>::Elf_Sym *
2131 MipsGOTParser<ELFT>::getGotSym(const Entry *E) const {
2132 int64_t Offset = std::distance(GotEntries.data(), E);
2133 return &GotDynSyms[Offset - LocalNum];
2136 template <class ELFT>
2137 const typename MipsGOTParser<ELFT>::Entry *
2138 MipsGOTParser<ELFT>::getPltLazyResolver() const {
2139 return PltEntries.empty() ? nullptr : &PltEntries[0];
2142 template <class ELFT>
2143 const typename MipsGOTParser<ELFT>::Entry *
2144 MipsGOTParser<ELFT>::getPltModulePointer() const {
2145 return PltEntries.size() < 2 ? nullptr : &PltEntries[1];
2148 template <class ELFT>
2149 typename MipsGOTParser<ELFT>::Entries
2150 MipsGOTParser<ELFT>::getPltEntries() const {
2151 if (PltEntries.size() <= 2)
2153 return PltEntries.slice(2, PltEntries.size() - 2);
2156 template <class ELFT>
2157 uint64_t MipsGOTParser<ELFT>::getPltAddress(const Entry *E) const {
2158 int64_t Offset = std::distance(PltEntries.data(), E) * sizeof(Entry);
2159 return PltSec->sh_addr + Offset;
2162 template <class ELFT>
2163 const typename MipsGOTParser<ELFT>::Elf_Sym *
2164 MipsGOTParser<ELFT>::getPltSym(const Entry *E) const {
2165 int64_t Offset = std::distance(getPltEntries().data(), E);
2166 if (PltRelSec->sh_type == ELF::SHT_REL) {
2167 Elf_Rel_Range Rels = unwrapOrError(Obj->rels(PltRelSec));
2168 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable));
2170 Elf_Rela_Range Rels = unwrapOrError(Obj->relas(PltRelSec));
2171 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable));
2175 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
2176 if (Obj->getHeader()->e_machine != EM_MIPS)
2177 reportError("MIPS PLT GOT is available for MIPS targets only");
2179 MipsGOTParser<ELFT> Parser(Obj, dynamic_table(), dynamic_symbols());
2180 if (Parser.hasGot())
2181 ELFDumperStyle->printMipsGOT(Parser);
2182 if (Parser.hasPlt())
2183 ELFDumperStyle->printMipsPLT(Parser);
2186 static const EnumEntry<unsigned> ElfMipsISAExtType[] = {
2187 {"None", Mips::AFL_EXT_NONE},
2188 {"Broadcom SB-1", Mips::AFL_EXT_SB1},
2189 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON},
2190 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2},
2191 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP},
2192 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3},
2193 {"LSI R4010", Mips::AFL_EXT_4010},
2194 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E},
2195 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F},
2196 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A},
2197 {"MIPS R4650", Mips::AFL_EXT_4650},
2198 {"MIPS R5900", Mips::AFL_EXT_5900},
2199 {"MIPS R10000", Mips::AFL_EXT_10000},
2200 {"NEC VR4100", Mips::AFL_EXT_4100},
2201 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111},
2202 {"NEC VR4120", Mips::AFL_EXT_4120},
2203 {"NEC VR5400", Mips::AFL_EXT_5400},
2204 {"NEC VR5500", Mips::AFL_EXT_5500},
2205 {"RMI Xlr", Mips::AFL_EXT_XLR},
2206 {"Toshiba R3900", Mips::AFL_EXT_3900}
2209 static const EnumEntry<unsigned> ElfMipsASEFlags[] = {
2210 {"DSP", Mips::AFL_ASE_DSP},
2211 {"DSPR2", Mips::AFL_ASE_DSPR2},
2212 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA},
2213 {"MCU", Mips::AFL_ASE_MCU},
2214 {"MDMX", Mips::AFL_ASE_MDMX},
2215 {"MIPS-3D", Mips::AFL_ASE_MIPS3D},
2216 {"MT", Mips::AFL_ASE_MT},
2217 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS},
2218 {"VZ", Mips::AFL_ASE_VIRT},
2219 {"MSA", Mips::AFL_ASE_MSA},
2220 {"MIPS16", Mips::AFL_ASE_MIPS16},
2221 {"microMIPS", Mips::AFL_ASE_MICROMIPS},
2222 {"XPA", Mips::AFL_ASE_XPA}
2225 static const EnumEntry<unsigned> ElfMipsFpABIType[] = {
2226 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY},
2227 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE},
2228 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE},
2229 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT},
2230 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)",
2231 Mips::Val_GNU_MIPS_ABI_FP_OLD_64},
2232 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX},
2233 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64},
2234 {"Hard float compat (32-bit CPU, 64-bit FPU)",
2235 Mips::Val_GNU_MIPS_ABI_FP_64A}
2238 static const EnumEntry<unsigned> ElfMipsFlags1[] {
2239 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG},
2242 static int getMipsRegisterSize(uint8_t Flag) {
2244 case Mips::AFL_REG_NONE:
2246 case Mips::AFL_REG_32:
2248 case Mips::AFL_REG_64:
2250 case Mips::AFL_REG_128:
2257 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() {
2258 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags");
2260 W.startLine() << "There is no .MIPS.abiflags section in the file.\n";
2263 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2264 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) {
2265 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n";
2269 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data());
2271 raw_ostream &OS = W.getOStream();
2272 DictScope GS(W, "MIPS ABI Flags");
2274 W.printNumber("Version", Flags->version);
2275 W.startLine() << "ISA: ";
2276 if (Flags->isa_rev <= 1)
2277 OS << format("MIPS%u", Flags->isa_level);
2279 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev);
2281 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType));
2282 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags));
2283 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType));
2284 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size));
2285 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size));
2286 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size));
2287 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1));
2288 W.printHex("Flags 2", Flags->flags2);
2291 template <class ELFT>
2292 static void printMipsReginfoData(ScopedPrinter &W,
2293 const Elf_Mips_RegInfo<ELFT> &Reginfo) {
2294 W.printHex("GP", Reginfo.ri_gp_value);
2295 W.printHex("General Mask", Reginfo.ri_gprmask);
2296 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]);
2297 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]);
2298 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]);
2299 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]);
2302 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() {
2303 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo");
2305 W.startLine() << "There is no .reginfo section in the file.\n";
2308 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2309 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) {
2310 W.startLine() << "The .reginfo section has a wrong size.\n";
2314 DictScope GS(W, "MIPS RegInfo");
2315 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data());
2316 printMipsReginfoData(W, *Reginfo);
2319 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() {
2320 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options");
2322 W.startLine() << "There is no .MIPS.options section in the file.\n";
2326 DictScope GS(W, "MIPS Options");
2328 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2329 while (!Sec.empty()) {
2330 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) {
2331 W.startLine() << "The .MIPS.options section has a wrong size.\n";
2334 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data());
2335 DictScope GS(W, getElfMipsOptionsOdkType(O->kind));
2338 printMipsReginfoData(W, O->getRegInfo());
2341 W.startLine() << "Unsupported MIPS options tag.\n";
2344 Sec = Sec.slice(O->size);
2348 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const {
2349 const Elf_Shdr *StackMapSection = nullptr;
2350 for (const auto &Sec : unwrapOrError(Obj->sections())) {
2351 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2352 if (Name == ".llvm_stackmaps") {
2353 StackMapSection = &Sec;
2358 if (!StackMapSection)
2361 ArrayRef<uint8_t> StackMapContentsArray =
2362 unwrapOrError(Obj->getSectionContents(StackMapSection));
2364 prettyPrintStackMap(outs(), StackMapV2Parser<ELFT::TargetEndianness>(
2365 StackMapContentsArray));
2368 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() {
2369 ELFDumperStyle->printGroupSections(Obj);
2372 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1,
2376 OS.PadToColumn(37u);
2381 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
2382 const Elf_Ehdr *e = Obj->getHeader();
2383 OS << "ELF Header:\n";
2386 for (int i = 0; i < ELF::EI_NIDENT; i++)
2387 OS << format(" %02x", static_cast<int>(e->e_ident[i]));
2389 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
2390 printFields(OS, "Class:", Str);
2391 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding));
2392 printFields(OS, "Data:", Str);
2395 OS.PadToColumn(37u);
2396 OS << to_hexString(e->e_ident[ELF::EI_VERSION]);
2397 if (e->e_version == ELF::EV_CURRENT)
2400 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI));
2401 printFields(OS, "OS/ABI:", Str);
2402 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]);
2403 printFields(OS, "ABI Version:", Str);
2404 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType));
2405 printFields(OS, "Type:", Str);
2406 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType));
2407 printFields(OS, "Machine:", Str);
2408 Str = "0x" + to_hexString(e->e_version);
2409 printFields(OS, "Version:", Str);
2410 Str = "0x" + to_hexString(e->e_entry);
2411 printFields(OS, "Entry point address:", Str);
2412 Str = to_string(e->e_phoff) + " (bytes into file)";
2413 printFields(OS, "Start of program headers:", Str);
2414 Str = to_string(e->e_shoff) + " (bytes into file)";
2415 printFields(OS, "Start of section headers:", Str);
2416 Str = "0x" + to_hexString(e->e_flags);
2417 printFields(OS, "Flags:", Str);
2418 Str = to_string(e->e_ehsize) + " (bytes)";
2419 printFields(OS, "Size of this header:", Str);
2420 Str = to_string(e->e_phentsize) + " (bytes)";
2421 printFields(OS, "Size of program headers:", Str);
2422 Str = to_string(e->e_phnum);
2423 printFields(OS, "Number of program headers:", Str);
2424 Str = to_string(e->e_shentsize) + " (bytes)";
2425 printFields(OS, "Size of section headers:", Str);
2426 Str = to_string(e->e_shnum);
2427 printFields(OS, "Number of section headers:", Str);
2428 Str = to_string(e->e_shstrndx);
2429 printFields(OS, "Section header string table index:", Str);
2433 struct GroupMember {
2438 struct GroupSection {
2440 StringRef Signature;
2444 std::vector<GroupMember> Members;
2447 template <class ELFT>
2448 std::vector<GroupSection> getGroups(const ELFFile<ELFT> *Obj) {
2449 using Elf_Shdr = typename ELFFile<ELFT>::Elf_Shdr;
2450 using Elf_Sym = typename ELFFile<ELFT>::Elf_Sym;
2451 using Elf_Word = typename ELFFile<ELFT>::Elf_Word;
2453 std::vector<GroupSection> Ret;
2455 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2457 if (Sec.sh_type != ELF::SHT_GROUP)
2460 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
2461 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
2462 const Elf_Sym *Sym =
2463 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info));
2465 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
2467 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2468 StringRef Signature = StrTable.data() + Sym->st_name;
2469 Ret.push_back({Name, Signature, Sec.sh_name, I - 1, Data[0], {}});
2471 std::vector<GroupMember> &GM = Ret.back().Members;
2472 for (uint32_t Ndx : Data.slice(1)) {
2473 auto Sec = unwrapOrError(Obj->getSection(Ndx));
2474 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
2475 GM.push_back({Name, Ndx});
2481 DenseMap<uint64_t, const GroupSection *>
2482 mapSectionsToGroups(ArrayRef<GroupSection> Groups) {
2483 DenseMap<uint64_t, const GroupSection *> Ret;
2484 for (const GroupSection &G : Groups)
2485 for (const GroupMember &GM : G.Members)
2486 Ret.insert({GM.Index, &G});
2492 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) {
2493 std::vector<GroupSection> V = getGroups<ELFT>(Obj);
2494 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V);
2495 for (const GroupSection &G : V) {
2497 << getGroupType(G.Type) << " group section ["
2498 << format_decimal(G.Index, 5) << "] `" << G.Name << "' [" << G.Signature
2499 << "] contains " << G.Members.size() << " sections:\n"
2500 << " [Index] Name\n";
2501 for (const GroupMember &GM : G.Members) {
2502 const GroupSection *MainGroup = Map[GM.Index];
2503 if (MainGroup != &G) {
2505 errs() << "Error: section [" << format_decimal(GM.Index, 5)
2506 << "] in group section [" << format_decimal(G.Index, 5)
2507 << "] already in group section ["
2508 << format_decimal(MainGroup->Index, 5) << "]";
2512 OS << " [" << format_decimal(GM.Index, 5) << "] " << GM.Name << "\n";
2517 OS << "There are no section groups in this file.\n";
2520 template <class ELFT>
2521 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
2522 const Elf_Rela &R, bool IsRela) {
2523 std::string Offset, Info, Addend, Value;
2524 SmallString<32> RelocName;
2525 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
2526 StringRef TargetName;
2527 const Elf_Sym *Sym = nullptr;
2528 unsigned Width = ELFT::Is64Bits ? 16 : 8;
2529 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2531 // First two fields are bit width dependent. The rest of them are after are
2533 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
2534 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
2535 Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab));
2536 if (Sym && Sym->getType() == ELF::STT_SECTION) {
2537 const Elf_Shdr *Sec = unwrapOrError(
2538 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
2539 TargetName = unwrapOrError(Obj->getSectionName(Sec));
2541 TargetName = unwrapOrError(Sym->getName(StrTable));
2544 if (Sym && IsRela) {
2551 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
2552 Info = to_string(format_hex_no_prefix(R.r_info, Width));
2554 int64_t RelAddend = R.r_addend;
2556 Addend += to_hexString(std::abs(RelAddend), false);
2559 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
2561 Fields[0].Str = Offset;
2562 Fields[1].Str = Info;
2563 Fields[2].Str = RelocName;
2564 Fields[3].Str = Value;
2565 Fields[4].Str = TargetName;
2566 for (auto &field : Fields)
2572 static inline void printRelocHeader(raw_ostream &OS, bool Is64, bool IsRela) {
2574 OS << " Offset Info Type"
2575 << " Symbol's Value Symbol's Name";
2577 OS << " Offset Info Type Sym. Value "
2580 OS << (IsRela ? " + Addend" : "");
2584 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) {
2585 bool HasRelocSections = false;
2586 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2587 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA &&
2588 Sec.sh_type != ELF::SHT_ANDROID_REL &&
2589 Sec.sh_type != ELF::SHT_ANDROID_RELA)
2591 HasRelocSections = true;
2592 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2593 unsigned Entries = Sec.getEntityCount();
2594 uintX_t Offset = Sec.sh_offset;
2595 OS << "\nRelocation section '" << Name << "' at offset 0x"
2596 << to_hexString(Offset, false) << " contains " << Entries
2598 printRelocHeader(OS, ELFT::Is64Bits,
2599 Sec.sh_type == ELF::SHT_RELA ||
2600 Sec.sh_type == ELF::SHT_ANDROID_RELA);
2601 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link));
2602 switch (Sec.sh_type) {
2604 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) {
2606 Rela.r_offset = R.r_offset;
2607 Rela.r_info = R.r_info;
2609 printRelocation(Obj, SymTab, Rela, false);
2613 for (const auto &R : unwrapOrError(Obj->relas(&Sec)))
2614 printRelocation(Obj, SymTab, R, true);
2616 case ELF::SHT_ANDROID_REL:
2617 case ELF::SHT_ANDROID_RELA:
2618 for (const auto &R : unwrapOrError(Obj->android_relas(&Sec)))
2619 printRelocation(Obj, SymTab, R, Sec.sh_type == ELF::SHT_ANDROID_RELA);
2623 if (!HasRelocSections)
2624 OS << "\nThere are no relocations in this file.\n";
2627 std::string getSectionTypeString(unsigned Arch, unsigned Type) {
2628 using namespace ELF;
2635 case SHT_ARM_PREEMPTMAP:
2636 return "ARM_PREEMPTMAP";
2637 case SHT_ARM_ATTRIBUTES:
2638 return "ARM_ATTRIBUTES";
2639 case SHT_ARM_DEBUGOVERLAY:
2640 return "ARM_DEBUGOVERLAY";
2641 case SHT_ARM_OVERLAYSECTION:
2642 return "ARM_OVERLAYSECTION";
2646 case SHT_X86_64_UNWIND:
2647 return "X86_64_UNWIND";
2650 case EM_MIPS_RS3_LE:
2652 case SHT_MIPS_REGINFO:
2653 return "MIPS_REGINFO";
2654 case SHT_MIPS_OPTIONS:
2655 return "MIPS_OPTIONS";
2656 case SHT_MIPS_ABIFLAGS:
2657 return "MIPS_ABIFLAGS";
2658 case SHT_MIPS_DWARF:
2659 return "SHT_MIPS_DWARF";
2687 case SHT_INIT_ARRAY:
2688 return "INIT_ARRAY";
2689 case SHT_FINI_ARRAY:
2690 return "FINI_ARRAY";
2691 case SHT_PREINIT_ARRAY:
2692 return "PREINIT_ARRAY";
2695 case SHT_SYMTAB_SHNDX:
2696 return "SYMTAB SECTION INDICES";
2697 case SHT_LLVM_ODRTAB:
2698 return "LLVM_ODRTAB";
2699 // FIXME: Parse processor specific GNU attributes
2700 case SHT_GNU_ATTRIBUTES:
2701 return "ATTRIBUTES";
2704 case SHT_GNU_verdef:
2706 case SHT_GNU_verneed:
2708 case SHT_GNU_versym:
2716 template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) {
2717 size_t SectionIndex = 0;
2718 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize,
2723 if (ELFT::Is64Bits) {
2730 OS << "There are " << to_string(Obj->getHeader()->e_shnum)
2731 << " section headers, starting at offset "
2732 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n";
2733 OS << "Section Headers:\n";
2734 Field Fields[11] = {{"[Nr]", 2},
2739 {"Size", 65 - Bias},
2745 for (auto &f : Fields)
2749 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2750 Number = to_string(SectionIndex);
2751 Fields[0].Str = Number;
2752 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec));
2753 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type);
2754 Fields[2].Str = Type;
2755 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width));
2756 Fields[3].Str = Address;
2757 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6));
2758 Fields[4].Str = Offset;
2759 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6));
2760 Fields[5].Str = Size;
2761 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2));
2762 Fields[6].Str = EntrySize;
2763 Flags = getGNUFlags(Sec.sh_flags);
2764 Fields[7].Str = Flags;
2765 Link = to_string(Sec.sh_link);
2766 Fields[8].Str = Link;
2767 Info = to_string(Sec.sh_info);
2768 Fields[9].Str = Info;
2769 Alignment = to_string(Sec.sh_addralign);
2770 Fields[10].Str = Alignment;
2771 OS.PadToColumn(Fields[0].Column);
2772 OS << "[" << right_justify(Fields[0].Str, 2) << "]";
2773 for (int i = 1; i < 7; i++)
2774 printField(Fields[i]);
2775 OS.PadToColumn(Fields[7].Column);
2776 OS << right_justify(Fields[7].Str, 3);
2777 OS.PadToColumn(Fields[8].Column);
2778 OS << right_justify(Fields[8].Str, 2);
2779 OS.PadToColumn(Fields[9].Column);
2780 OS << right_justify(Fields[9].Str, 3);
2781 OS.PadToColumn(Fields[10].Column);
2782 OS << right_justify(Fields[10].Str, 2);
2786 OS << "Key to Flags:\n"
2787 << " W (write), A (alloc), X (execute), M (merge), S (strings), l "
2789 << " I (info), L (link order), G (group), T (TLS), E (exclude),\
2791 << " O (extra OS processing required) o (OS specific),\
2792 p (processor specific)\n";
2795 template <class ELFT>
2796 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name,
2799 OS << "\nSymbol table '" << Name << "' contains " << Entries
2802 OS << "\n Symbol table for image:\n";
2805 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2807 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2810 template <class ELFT>
2811 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj,
2812 const Elf_Sym *Symbol,
2813 const Elf_Sym *FirstSym) {
2814 unsigned SectionIndex = Symbol->st_shndx;
2815 switch (SectionIndex) {
2816 case ELF::SHN_UNDEF:
2820 case ELF::SHN_COMMON:
2822 case ELF::SHN_XINDEX:
2823 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>(
2824 Symbol, FirstSym, this->dumper()->getShndxTable()));
2828 // Processor specific
2829 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC)
2830 return std::string("PRC[0x") +
2831 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2833 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS)
2834 return std::string("OS[0x") +
2835 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2836 // Architecture reserved:
2837 if (SectionIndex >= ELF::SHN_LORESERVE &&
2838 SectionIndex <= ELF::SHN_HIRESERVE)
2839 return std::string("RSV[0x") +
2840 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2841 // A normal section with an index
2842 return to_string(format_decimal(SectionIndex, 3));
2846 template <class ELFT>
2847 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
2848 const Elf_Sym *FirstSym, StringRef StrTable,
2851 static bool Dynamic = true;
2854 // If this function was called with a different value from IsDynamic
2855 // from last call, happens when we move from dynamic to static symbol
2856 // table, "Num" field should be reset.
2857 if (!Dynamic != !IsDynamic) {
2861 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section;
2863 if (ELFT::Is64Bits) {
2870 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias,
2871 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias};
2872 Num = to_string(format_decimal(Idx++, 6)) + ":";
2873 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width));
2874 Size = to_string(format_decimal(Symbol->st_size, 5));
2875 unsigned char SymbolType = Symbol->getType();
2876 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
2877 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
2878 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
2880 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
2881 unsigned Vis = Symbol->getVisibility();
2882 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
2883 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities));
2884 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym);
2885 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
2886 Fields[0].Str = Num;
2887 Fields[1].Str = Value;
2888 Fields[2].Str = Size;
2889 Fields[3].Str = Type;
2890 Fields[4].Str = Binding;
2891 Fields[5].Str = Visibility;
2892 Fields[6].Str = Section;
2893 Fields[7].Str = Name;
2894 for (auto &Entry : Fields)
2898 template <class ELFT>
2899 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym,
2900 uint32_t Sym, StringRef StrTable,
2902 std::string Num, Buc, Name, Value, Size, Binding, Type, Visibility, Section;
2903 unsigned Width, Bias = 0;
2904 if (ELFT::Is64Bits) {
2911 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias,
2912 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias};
2913 Num = to_string(format_decimal(Sym, 5));
2914 Buc = to_string(format_decimal(Bucket, 3)) + ":";
2916 const auto Symbol = FirstSym + Sym;
2917 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width));
2918 Size = to_string(format_decimal(Symbol->st_size, 5));
2919 unsigned char SymbolType = Symbol->getType();
2920 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
2921 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
2922 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
2924 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
2925 unsigned Vis = Symbol->getVisibility();
2926 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
2927 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities));
2928 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym);
2929 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, true);
2930 Fields[0].Str = Num;
2931 Fields[1].Str = Buc;
2932 Fields[2].Str = Value;
2933 Fields[3].Str = Size;
2934 Fields[4].Str = Type;
2935 Fields[5].Str = Binding;
2936 Fields[6].Str = Visibility;
2937 Fields[7].Str = Section;
2938 Fields[8].Str = Name;
2939 for (auto &Entry : Fields)
2944 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) {
2945 if (opts::DynamicSymbols)
2947 this->dumper()->printSymbolsHelper(true);
2948 this->dumper()->printSymbolsHelper(false);
2951 template <class ELFT>
2952 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
2953 if (this->dumper()->getDynamicStringTable().empty())
2955 auto StringTable = this->dumper()->getDynamicStringTable();
2956 auto DynSyms = this->dumper()->dynamic_symbols();
2957 auto GnuHash = this->dumper()->getGnuHashTable();
2958 auto SysVHash = this->dumper()->getHashTable();
2960 // If no hash or .gnu.hash found, try using symbol table
2961 if (GnuHash == nullptr && SysVHash == nullptr)
2962 this->dumper()->printSymbolsHelper(true);
2964 // Try printing .hash
2965 if (this->dumper()->getHashTable()) {
2966 OS << "\n Symbol table of .hash for image:\n";
2968 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2970 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2973 uint32_t NBuckets = SysVHash->nbucket;
2974 uint32_t NChains = SysVHash->nchain;
2975 auto Buckets = SysVHash->buckets();
2976 auto Chains = SysVHash->chains();
2977 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) {
2978 if (Buckets[Buc] == ELF::STN_UNDEF)
2980 for (uint32_t Ch = Buckets[Buc]; Ch < NChains; Ch = Chains[Ch]) {
2981 if (Ch == ELF::STN_UNDEF)
2983 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc);
2988 // Try printing .gnu.hash
2990 OS << "\n Symbol table of .gnu.hash for image:\n";
2992 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2994 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2996 uint32_t NBuckets = GnuHash->nbuckets;
2997 auto Buckets = GnuHash->buckets();
2998 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) {
2999 if (Buckets[Buc] == ELF::STN_UNDEF)
3001 uint32_t Index = Buckets[Buc];
3002 uint32_t GnuHashable = Index - GnuHash->symndx;
3003 // Print whole chain
3005 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc);
3006 // Chain ends at symbol with stopper bit
3007 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1)
3014 static inline std::string printPhdrFlags(unsigned Flag) {
3016 Str = (Flag & PF_R) ? "R" : " ";
3017 Str += (Flag & PF_W) ? "W" : " ";
3018 Str += (Flag & PF_X) ? "E" : " ";
3022 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO
3023 // PT_TLS must only have SHF_TLS sections
3024 template <class ELFT>
3025 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr,
3026 const Elf_Shdr &Sec) {
3027 return (((Sec.sh_flags & ELF::SHF_TLS) &&
3028 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) ||
3029 (Phdr.p_type == ELF::PT_GNU_RELRO))) ||
3030 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS));
3033 // Non-SHT_NOBITS must have its offset inside the segment
3034 // Only non-zero section can be at end of segment
3035 template <class ELFT>
3036 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3037 if (Sec.sh_type == ELF::SHT_NOBITS)
3040 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
3041 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
3043 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
3044 if (Sec.sh_offset >= Phdr.p_offset)
3045 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset)
3046 /*only non-zero sized sections at end*/ &&
3047 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz));
3051 // SHF_ALLOC must have VMA inside segment
3052 // Only non-zero section can be at end of segment
3053 template <class ELFT>
3054 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3055 if (!(Sec.sh_flags & ELF::SHF_ALLOC))
3058 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
3059 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
3061 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
3062 if (Sec.sh_addr >= Phdr.p_vaddr)
3063 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) &&
3064 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz));
3068 // No section with zero size must be at start or end of PT_DYNAMIC
3069 template <class ELFT>
3070 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3071 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0)
3073 // Is section within the phdr both based on offset and VMA ?
3074 return ((Sec.sh_type == ELF::SHT_NOBITS) ||
3075 (Sec.sh_offset > Phdr.p_offset &&
3076 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) &&
3077 (!(Sec.sh_flags & ELF::SHF_ALLOC) ||
3078 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz));
3081 template <class ELFT>
3082 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
3083 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3084 unsigned Width = ELFT::Is64Bits ? 18 : 10;
3085 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7;
3086 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align;
3088 const Elf_Ehdr *Header = Obj->getHeader();
3089 Field Fields[8] = {2, 17, 26, 37 + Bias,
3090 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias};
3091 OS << "\nElf file type is "
3092 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n"
3093 << "Entry point " << format_hex(Header->e_entry, 3) << "\n"
3094 << "There are " << Header->e_phnum << " program headers,"
3095 << " starting at offset " << Header->e_phoff << "\n\n"
3096 << "Program Headers:\n";
3098 OS << " Type Offset VirtAddr PhysAddr "
3099 << " FileSiz MemSiz Flg Align\n";
3101 OS << " Type Offset VirtAddr PhysAddr FileSiz "
3102 << "MemSiz Flg Align\n";
3103 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) {
3104 Type = getElfPtType(Header->e_machine, Phdr.p_type);
3105 Offset = to_string(format_hex(Phdr.p_offset, 8));
3106 VMA = to_string(format_hex(Phdr.p_vaddr, Width));
3107 LMA = to_string(format_hex(Phdr.p_paddr, Width));
3108 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth));
3109 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth));
3110 Flag = printPhdrFlags(Phdr.p_flags);
3111 Align = to_string(format_hex(Phdr.p_align, 1));
3112 Fields[0].Str = Type;
3113 Fields[1].Str = Offset;
3114 Fields[2].Str = VMA;
3115 Fields[3].Str = LMA;
3116 Fields[4].Str = FileSz;
3117 Fields[5].Str = MemSz;
3118 Fields[6].Str = Flag;
3119 Fields[7].Str = Align;
3120 for (auto Field : Fields)
3122 if (Phdr.p_type == ELF::PT_INTERP) {
3123 OS << "\n [Requesting program interpreter: ";
3124 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]";
3128 OS << "\n Section to Segment mapping:\n Segment Sections...\n";
3130 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
3131 std::string Sections;
3132 OS << format(" %2.2d ", Phnum++);
3133 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3134 // Check if each section is in a segment and then print mapping.
3135 // readelf additionally makes sure it does not print zero sized sections
3136 // at end of segments and for PT_DYNAMIC both start and end of section
3137 // .tbss must only be shown in PT_TLS section.
3138 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) &&
3139 ((Sec.sh_flags & ELF::SHF_TLS) != 0) &&
3140 Phdr.p_type != ELF::PT_TLS;
3141 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) &&
3142 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) &&
3143 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL))
3144 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " ";
3146 OS << Sections << "\n";
3151 template <class ELFT>
3152 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R,
3154 SmallString<32> RelocName;
3155 StringRef SymbolName;
3156 unsigned Width = ELFT::Is64Bits ? 16 : 8;
3157 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3158 // First two fields are bit width dependent. The rest of them are after are
3160 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
3162 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL());
3163 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
3164 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
3166 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
3167 std::string Addend, Info, Offset, Value;
3168 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
3169 Info = to_string(format_hex_no_prefix(R.r_info, Width));
3170 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
3171 int64_t RelAddend = R.r_addend;
3172 if (!SymbolName.empty() && IsRela) {
3179 if (SymbolName.empty() && Sym->getValue() == 0)
3183 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1));
3186 Fields[0].Str = Offset;
3187 Fields[1].Str = Info;
3188 Fields[2].Str = RelocName.c_str();
3189 Fields[3].Str = Value;
3190 Fields[4].Str = SymbolName;
3191 for (auto &Field : Fields)
3197 template <class ELFT>
3198 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3199 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3200 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3201 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3202 if (DynRelaRegion.Size > 0) {
3203 OS << "\n'RELA' relocation section at offset "
3204 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) -
3206 1) << " contains " << DynRelaRegion.Size << " bytes:\n";
3207 printRelocHeader(OS, ELFT::Is64Bits, true);
3208 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3209 printDynamicRelocation(Obj, Rela, true);
3211 if (DynRelRegion.Size > 0) {
3212 OS << "\n'REL' relocation section at offset "
3213 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) -
3215 1) << " contains " << DynRelRegion.Size << " bytes:\n";
3216 printRelocHeader(OS, ELFT::Is64Bits, false);
3217 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3219 Rela.r_offset = Rel.r_offset;
3220 Rela.r_info = Rel.r_info;
3222 printDynamicRelocation(Obj, Rela, false);
3225 if (DynPLTRelRegion.Size) {
3226 OS << "\n'PLT' relocation section at offset "
3227 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) -
3229 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n";
3231 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) {
3232 printRelocHeader(OS, ELFT::Is64Bits, true);
3233 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
3234 printDynamicRelocation(Obj, Rela, true);
3236 printRelocHeader(OS, ELFT::Is64Bits, false);
3237 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
3239 Rela.r_offset = Rel.r_offset;
3240 Rela.r_info = Rel.r_info;
3242 printDynamicRelocation(Obj, Rela, false);
3247 // Hash histogram shows statistics of how efficient the hash was for the
3248 // dynamic symbol table. The table shows number of hash buckets for different
3249 // lengths of chains as absolute number and percentage of the total buckets.
3250 // Additionally cumulative coverage of symbols for each set of buckets.
3251 template <class ELFT>
3252 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
3254 const Elf_Hash *HashTable = this->dumper()->getHashTable();
3255 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable();
3257 // Print histogram for .hash section
3259 size_t NBucket = HashTable->nbucket;
3260 size_t NChain = HashTable->nchain;
3261 ArrayRef<Elf_Word> Buckets = HashTable->buckets();
3262 ArrayRef<Elf_Word> Chains = HashTable->chains();
3263 size_t TotalSyms = 0;
3264 // If hash table is correct, we have at least chains with 0 length
3265 size_t MaxChain = 1;
3266 size_t CumulativeNonZero = 0;
3268 if (NChain == 0 || NBucket == 0)
3271 std::vector<size_t> ChainLen(NBucket, 0);
3272 // Go over all buckets and and note chain lengths of each bucket (total
3273 // unique chain lengths).
3274 for (size_t B = 0; B < NBucket; B++) {
3275 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C])
3276 if (MaxChain <= ++ChainLen[B])
3278 TotalSyms += ChainLen[B];
3284 std::vector<size_t> Count(MaxChain, 0) ;
3285 // Count how long is the chain for each bucket
3286 for (size_t B = 0; B < NBucket; B++)
3287 ++Count[ChainLen[B]];
3288 // Print Number of buckets with each chain lengths and their cumulative
3289 // coverage of the symbols
3290 OS << "Histogram for bucket list length (total of " << NBucket
3292 << " Length Number % of total Coverage\n";
3293 for (size_t I = 0; I < MaxChain; I++) {
3294 CumulativeNonZero += Count[I] * I;
3295 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3296 (Count[I] * 100.0) / NBucket,
3297 (CumulativeNonZero * 100.0) / TotalSyms);
3301 // Print histogram for .gnu.hash section
3303 size_t NBucket = GnuHashTable->nbuckets;
3304 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets();
3305 unsigned NumSyms = this->dumper()->dynamic_symbols().size();
3308 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms);
3309 size_t Symndx = GnuHashTable->symndx;
3310 size_t TotalSyms = 0;
3311 size_t MaxChain = 1;
3312 size_t CumulativeNonZero = 0;
3314 if (Chains.empty() || NBucket == 0)
3317 std::vector<size_t> ChainLen(NBucket, 0);
3319 for (size_t B = 0; B < NBucket; B++) {
3323 for (size_t C = Buckets[B] - Symndx;
3324 C < Chains.size() && (Chains[C] & 1) == 0; C++)
3325 if (MaxChain < ++Len)
3335 std::vector<size_t> Count(MaxChain, 0) ;
3336 for (size_t B = 0; B < NBucket; B++)
3337 ++Count[ChainLen[B]];
3338 // Print Number of buckets with each chain lengths and their cumulative
3339 // coverage of the symbols
3340 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket
3342 << " Length Number % of total Coverage\n";
3343 for (size_t I = 0; I <MaxChain; I++) {
3344 CumulativeNonZero += Count[I] * I;
3345 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3346 (Count[I] * 100.0) / NBucket,
3347 (CumulativeNonZero * 100.0) / TotalSyms);
3352 static std::string getGNUNoteTypeName(const uint32_t NT) {
3353 static const struct {
3357 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"},
3358 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"},
3359 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"},
3360 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"},
3363 for (const auto &Note : Notes)
3365 return std::string(Note.Name);
3368 raw_string_ostream OS(string);
3369 OS << format("Unknown note type (0x%08x)", NT);
3373 static std::string getFreeBSDNoteTypeName(const uint32_t NT) {
3374 static const struct {
3378 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"},
3379 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"},
3380 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"},
3381 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"},
3382 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"},
3383 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"},
3384 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"},
3385 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"},
3386 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS,
3387 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"},
3388 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"},
3391 for (const auto &Note : Notes)
3393 return std::string(Note.Name);
3396 raw_string_ostream OS(string);
3397 OS << format("Unknown note type (0x%08x)", NT);
3401 static std::string getAMDGPUNoteTypeName(const uint32_t NT) {
3402 static const struct {
3406 {ELF::NT_AMD_AMDGPU_HSA_METADATA,
3407 "NT_AMD_AMDGPU_HSA_METADATA (HSA Metadata)"},
3408 {ELF::NT_AMD_AMDGPU_ISA,
3409 "NT_AMD_AMDGPU_ISA (ISA Version)"},
3410 {ELF::NT_AMD_AMDGPU_PAL_METADATA,
3411 "NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)"}
3414 for (const auto &Note : Notes)
3416 return std::string(Note.Name);
3419 raw_string_ostream OS(string);
3420 OS << format("Unknown note type (0x%08x)", NT);
3424 template <typename ELFT>
3425 static void printGNUNote(raw_ostream &OS, uint32_t NoteType,
3426 ArrayRef<typename ELFFile<ELFT>::Elf_Word> Words,
3431 case ELF::NT_GNU_ABI_TAG: {
3432 static const char *OSNames[] = {
3433 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl",
3436 StringRef OSName = "Unknown";
3437 if (Words[0] < array_lengthof(OSNames))
3438 OSName = OSNames[Words[0]];
3439 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3];
3441 if (Words.size() < 4)
3442 OS << " <corrupt GNU_ABI_TAG>";
3444 OS << " OS: " << OSName << ", ABI: " << Major << "." << Minor << "."
3448 case ELF::NT_GNU_BUILD_ID: {
3449 OS << " Build ID: ";
3450 ArrayRef<uint8_t> ID(reinterpret_cast<const uint8_t *>(Words.data()), Size);
3451 for (const auto &B : ID)
3452 OS << format_hex_no_prefix(B, 2);
3455 case ELF::NT_GNU_GOLD_VERSION:
3457 << StringRef(reinterpret_cast<const char *>(Words.data()), Size);
3464 template <typename ELFT>
3465 static void printAMDGPUNote(raw_ostream &OS, uint32_t NoteType,
3466 ArrayRef<typename ELFFile<ELFT>::Elf_Word> Words,
3471 case ELF::NT_AMD_AMDGPU_HSA_METADATA:
3472 OS << " HSA Metadata:\n"
3473 << StringRef(reinterpret_cast<const char *>(Words.data()), Size);
3475 case ELF::NT_AMD_AMDGPU_ISA:
3476 OS << " ISA Version:\n"
3478 << StringRef(reinterpret_cast<const char *>(Words.data()), Size);
3480 case ELF::NT_AMD_AMDGPU_PAL_METADATA:
3481 const uint32_t *PALMetadataBegin = reinterpret_cast<const uint32_t *>(Words.data());
3482 const uint32_t *PALMetadataEnd = PALMetadataBegin + Size;
3483 std::vector<uint32_t> PALMetadata(PALMetadataBegin, PALMetadataEnd);
3484 std::string PALMetadataString;
3485 auto Error = AMDGPU::PALMD::toString(PALMetadata, PALMetadataString);
3486 OS << " PAL Metadata:\n";
3491 OS << PALMetadataString;
3497 template <class ELFT>
3498 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
3499 const Elf_Ehdr *e = Obj->getHeader();
3500 bool IsCore = e->e_type == ELF::ET_CORE;
3502 auto process = [&](const typename ELFFile<ELFT>::Elf_Off Offset,
3503 const typename ELFFile<ELFT>::Elf_Addr Size) {
3507 const auto *P = static_cast<const uint8_t *>(Obj->base() + Offset);
3508 const auto *E = P + Size;
3510 OS << "Displaying notes found at file offset " << format_hex(Offset, 10)
3511 << " with length " << format_hex(Size, 10) << ":\n"
3512 << " Owner Data size\tDescription\n";
3515 const Elf_Word *Words = reinterpret_cast<const Elf_Word *>(&P[0]);
3517 uint32_t NameSize = Words[0];
3518 uint32_t DescriptorSize = Words[1];
3519 uint32_t Type = Words[2];
3521 ArrayRef<Elf_Word> Descriptor(&Words[3 + (alignTo<4>(NameSize) / 4)],
3522 alignTo<4>(DescriptorSize) / 4);
3527 StringRef(reinterpret_cast<const char *>(&Words[3]), NameSize - 1);
3529 OS << " " << Name << std::string(22 - NameSize, ' ')
3530 << format_hex(DescriptorSize, 10) << '\t';
3532 if (Name == "GNU") {
3533 OS << getGNUNoteTypeName(Type) << '\n';
3534 printGNUNote<ELFT>(OS, Type, Descriptor, DescriptorSize);
3535 } else if (Name == "FreeBSD") {
3536 OS << getFreeBSDNoteTypeName(Type) << '\n';
3537 } else if (Name == "AMD") {
3538 OS << getAMDGPUNoteTypeName(Type) << '\n';
3539 printAMDGPUNote<ELFT>(OS, Type, Descriptor, DescriptorSize);
3541 OS << "Unknown note type: (" << format_hex(Type, 10) << ')';
3545 P = P + 3 * sizeof(Elf_Word) + alignTo<4>(NameSize) +
3546 alignTo<4>(DescriptorSize);
3551 for (const auto &P : unwrapOrError(Obj->program_headers()))
3552 if (P.p_type == PT_NOTE)
3553 process(P.p_offset, P.p_filesz);
3555 for (const auto &S : unwrapOrError(Obj->sections()))
3556 if (S.sh_type == SHT_NOTE)
3557 process(S.sh_offset, S.sh_size);
3561 template <class ELFT>
3562 void GNUStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) {
3563 size_t Bias = ELFT::Is64Bits ? 8 : 0;
3564 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) {
3566 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias);
3567 OS.PadToColumn(11 + Bias);
3568 OS << format_decimal(Parser.getGotOffset(E), 6) << "(gp)";
3569 OS.PadToColumn(22 + Bias);
3570 OS << format_hex_no_prefix(*E, 8 + Bias);
3571 OS.PadToColumn(31 + 2 * Bias);
3572 OS << Purpose << "\n";
3575 OS << (Parser.IsStatic ? "Static GOT:\n" : "Primary GOT:\n");
3576 OS << " Canonical gp value: "
3577 << format_hex_no_prefix(Parser.getGp(), 8 + Bias) << "\n\n";
3579 OS << " Reserved entries:\n";
3580 OS << " Address Access Initial Purpose\n";
3581 PrintEntry(Parser.getGotLazyResolver(), "Lazy resolver");
3582 if (Parser.getGotModulePointer())
3583 PrintEntry(Parser.getGotModulePointer(), "Module pointer (GNU extension)");
3585 if (!Parser.getLocalEntries().empty()) {
3587 OS << " Local entries:\n";
3588 OS << " Address Access Initial\n";
3589 for (auto &E : Parser.getLocalEntries())
3593 if (Parser.IsStatic)
3596 if (!Parser.getGlobalEntries().empty()) {
3598 OS << " Global entries:\n";
3599 OS << " Address Access Initial Sym.Val. Type Ndx Name\n";
3600 for (auto &E : Parser.getGlobalEntries()) {
3601 const Elf_Sym *Sym = Parser.getGotSym(&E);
3602 std::string SymName = this->dumper()->getFullSymbolName(
3603 Sym, this->dumper()->getDynamicStringTable(), false);
3606 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias));
3607 OS.PadToColumn(11 + Bias);
3608 OS << to_string(format_decimal(Parser.getGotOffset(&E), 6)) + "(gp)";
3609 OS.PadToColumn(22 + Bias);
3610 OS << to_string(format_hex_no_prefix(E, 8 + Bias));
3611 OS.PadToColumn(31 + 2 * Bias);
3612 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias));
3613 OS.PadToColumn(40 + 3 * Bias);
3614 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes));
3615 OS.PadToColumn(48 + 3 * Bias);
3616 OS << getSymbolSectionNdx(Parser.Obj, Sym,
3617 this->dumper()->dynamic_symbols().begin());
3618 OS.PadToColumn(52 + 3 * Bias);
3619 OS << SymName << "\n";
3623 if (!Parser.getOtherEntries().empty())
3624 OS << "\n Number of TLS and multi-GOT entries "
3625 << Parser.getOtherEntries().size() << "\n";
3628 template <class ELFT>
3629 void GNUStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) {
3630 size_t Bias = ELFT::Is64Bits ? 8 : 0;
3631 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) {
3633 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias);
3634 OS.PadToColumn(11 + Bias);
3635 OS << format_hex_no_prefix(*E, 8 + Bias);
3636 OS.PadToColumn(20 + 2 * Bias);
3637 OS << Purpose << "\n";
3640 OS << "PLT GOT:\n\n";
3642 OS << " Reserved entries:\n";
3643 OS << " Address Initial Purpose\n";
3644 PrintEntry(Parser.getPltLazyResolver(), "PLT lazy resolver");
3645 if (Parser.getPltModulePointer())
3646 PrintEntry(Parser.getGotModulePointer(), "Module pointer");
3648 if (!Parser.getPltEntries().empty()) {
3650 OS << " Entries:\n";
3651 OS << " Address Initial Sym.Val. Type Ndx Name\n";
3652 for (auto &E : Parser.getPltEntries()) {
3653 const Elf_Sym *Sym = Parser.getPltSym(&E);
3654 std::string SymName = this->dumper()->getFullSymbolName(
3655 Sym, this->dumper()->getDynamicStringTable(), false);
3658 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias));
3659 OS.PadToColumn(11 + Bias);
3660 OS << to_string(format_hex_no_prefix(E, 8 + Bias));
3661 OS.PadToColumn(20 + 2 * Bias);
3662 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias));
3663 OS.PadToColumn(29 + 3 * Bias);
3664 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes));
3665 OS.PadToColumn(37 + 3 * Bias);
3666 OS << getSymbolSectionNdx(Parser.Obj, Sym,
3667 this->dumper()->dynamic_symbols().begin());
3668 OS.PadToColumn(41 + 3 * Bias);
3669 OS << SymName << "\n";
3674 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
3675 const Elf_Ehdr *e = Obj->getHeader();
3677 DictScope D(W, "ElfHeader");
3679 DictScope D(W, "Ident");
3680 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4));
3681 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
3682 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA],
3683 makeArrayRef(ElfDataEncoding));
3684 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]);
3686 auto OSABI = makeArrayRef(ElfOSABI);
3687 if (e->e_ident[ELF::EI_OSABI] >= ELF::ELFOSABI_FIRST_ARCH &&
3688 e->e_ident[ELF::EI_OSABI] <= ELF::ELFOSABI_LAST_ARCH) {
3689 switch (e->e_machine) {
3690 case ELF::EM_AMDGPU:
3691 OSABI = makeArrayRef(AMDGPUElfOSABI);
3694 OSABI = makeArrayRef(ARMElfOSABI);
3696 case ELF::EM_TI_C6000:
3697 OSABI = makeArrayRef(C6000ElfOSABI);
3701 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI], OSABI);
3702 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]);
3703 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD));
3706 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType));
3707 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType));
3708 W.printNumber("Version", e->e_version);
3709 W.printHex("Entry", e->e_entry);
3710 W.printHex("ProgramHeaderOffset", e->e_phoff);
3711 W.printHex("SectionHeaderOffset", e->e_shoff);
3712 if (e->e_machine == EM_MIPS)
3713 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags),
3714 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
3715 unsigned(ELF::EF_MIPS_MACH));
3716 else if (e->e_machine == EM_AMDGPU)
3717 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderAMDGPUFlags),
3718 unsigned(ELF::EF_AMDGPU_ARCH));
3719 else if (e->e_machine == EM_RISCV)
3720 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderRISCVFlags));
3722 W.printFlags("Flags", e->e_flags);
3723 W.printNumber("HeaderSize", e->e_ehsize);
3724 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize);
3725 W.printNumber("ProgramHeaderCount", e->e_phnum);
3726 W.printNumber("SectionHeaderEntrySize", e->e_shentsize);
3727 W.printNumber("SectionHeaderCount", e->e_shnum);
3728 W.printNumber("StringTableSectionIndex", e->e_shstrndx);
3732 template <class ELFT>
3733 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) {
3734 DictScope Lists(W, "Groups");
3735 std::vector<GroupSection> V = getGroups<ELFT>(Obj);
3736 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V);
3737 for (const GroupSection &G : V) {
3738 DictScope D(W, "Group");
3739 W.printNumber("Name", G.Name, G.ShName);
3740 W.printNumber("Index", G.Index);
3741 W.printHex("Type", getGroupType(G.Type), G.Type);
3742 W.startLine() << "Signature: " << G.Signature << "\n";
3744 ListScope L(W, "Section(s) in group");
3745 for (const GroupMember &GM : G.Members) {
3746 const GroupSection *MainGroup = Map[GM.Index];
3747 if (MainGroup != &G) {
3749 errs() << "Error: " << GM.Name << " (" << GM.Index
3750 << ") in a group " + G.Name + " (" << G.Index
3751 << ") is already in a group " + MainGroup->Name + " ("
3752 << MainGroup->Index << ")\n";
3756 W.startLine() << GM.Name << " (" << GM.Index << ")\n";
3761 W.startLine() << "There are no group sections in the file.\n";
3764 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) {
3765 ListScope D(W, "Relocations");
3767 int SectionNumber = -1;
3768 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3771 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA &&
3772 Sec.sh_type != ELF::SHT_ANDROID_REL &&
3773 Sec.sh_type != ELF::SHT_ANDROID_RELA)
3776 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3778 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
3781 printRelocations(&Sec, Obj);
3784 W.startLine() << "}\n";
3788 template <class ELFT>
3789 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) {
3790 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link));
3792 switch (Sec->sh_type) {
3794 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) {
3796 Rela.r_offset = R.r_offset;
3797 Rela.r_info = R.r_info;
3799 printRelocation(Obj, Rela, SymTab);
3803 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec)))
3804 printRelocation(Obj, R, SymTab);
3806 case ELF::SHT_ANDROID_REL:
3807 case ELF::SHT_ANDROID_RELA:
3808 for (const Elf_Rela &R : unwrapOrError(Obj->android_relas(Sec)))
3809 printRelocation(Obj, R, SymTab);
3814 template <class ELFT>
3815 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel,
3816 const Elf_Shdr *SymTab) {
3817 SmallString<32> RelocName;
3818 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
3819 StringRef TargetName;
3820 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab));
3821 if (Sym && Sym->getType() == ELF::STT_SECTION) {
3822 const Elf_Shdr *Sec = unwrapOrError(
3823 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
3824 TargetName = unwrapOrError(Obj->getSectionName(Sec));
3826 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
3827 TargetName = unwrapOrError(Sym->getName(StrTable));
3830 if (opts::ExpandRelocs) {
3831 DictScope Group(W, "Relocation");
3832 W.printHex("Offset", Rel.r_offset);
3833 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
3834 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-",
3835 Rel.getSymbol(Obj->isMips64EL()));
3836 W.printHex("Addend", Rel.r_addend);
3838 raw_ostream &OS = W.startLine();
3839 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
3840 << (!TargetName.empty() ? TargetName : "-") << " "
3841 << W.hex(Rel.r_addend) << "\n";
3845 template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) {
3846 ListScope SectionsD(W, "Sections");
3848 int SectionIndex = -1;
3849 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3852 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3854 DictScope SectionD(W, "Section");
3855 W.printNumber("Index", SectionIndex);
3856 W.printNumber("Name", Name, Sec.sh_name);
3859 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type),
3861 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags),
3862 std::end(ElfSectionFlags));
3863 switch (Obj->getHeader()->e_machine) {
3865 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags),
3866 std::end(ElfARMSectionFlags));
3869 SectionFlags.insert(SectionFlags.end(),
3870 std::begin(ElfHexagonSectionFlags),
3871 std::end(ElfHexagonSectionFlags));
3874 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags),
3875 std::end(ElfMipsSectionFlags));
3878 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags),
3879 std::end(ElfX86_64SectionFlags));
3882 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags),
3883 std::end(ElfXCoreSectionFlags));
3889 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags));
3890 W.printHex("Address", Sec.sh_addr);
3891 W.printHex("Offset", Sec.sh_offset);
3892 W.printNumber("Size", Sec.sh_size);
3893 W.printNumber("Link", Sec.sh_link);
3894 W.printNumber("Info", Sec.sh_info);
3895 W.printNumber("AddressAlignment", Sec.sh_addralign);
3896 W.printNumber("EntrySize", Sec.sh_entsize);
3898 if (opts::SectionRelocations) {
3899 ListScope D(W, "Relocations");
3900 printRelocations(&Sec, Obj);
3903 if (opts::SectionSymbols) {
3904 ListScope D(W, "Symbols");
3905 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec();
3906 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
3908 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) {
3909 const Elf_Shdr *SymSec = unwrapOrError(
3910 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable()));
3912 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(),
3917 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) {
3918 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec));
3919 W.printBinaryBlock("SectionData",
3920 StringRef((const char *)Data.data(), Data.size()));
3925 template <class ELFT>
3926 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
3927 const Elf_Sym *First, StringRef StrTable,
3929 unsigned SectionIndex = 0;
3930 StringRef SectionName;
3931 this->dumper()->getSectionNameIndex(Symbol, First, SectionName, SectionIndex);
3932 std::string FullSymbolName =
3933 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
3934 unsigned char SymbolType = Symbol->getType();
3936 DictScope D(W, "Symbol");
3937 W.printNumber("Name", FullSymbolName, Symbol->st_name);
3938 W.printHex("Value", Symbol->st_value);
3939 W.printNumber("Size", Symbol->st_size);
3940 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
3941 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
3942 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
3943 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes));
3945 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes));
3946 if (Symbol->st_other == 0)
3947 // Usually st_other flag is zero. Do not pollute the output
3948 // by flags enumeration in that case.
3949 W.printNumber("Other", 0);
3951 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags),
3952 std::end(ElfSymOtherFlags));
3953 if (Obj->getHeader()->e_machine == EM_MIPS) {
3954 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16
3955 // flag overlapped with other ST_MIPS_xxx flags. So consider both
3956 // cases separately.
3957 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16)
3958 SymOtherFlags.insert(SymOtherFlags.end(),
3959 std::begin(ElfMips16SymOtherFlags),
3960 std::end(ElfMips16SymOtherFlags));
3962 SymOtherFlags.insert(SymOtherFlags.end(),
3963 std::begin(ElfMipsSymOtherFlags),
3964 std::end(ElfMipsSymOtherFlags));
3966 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u);
3968 W.printHex("Section", SectionName, SectionIndex);
3971 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) {
3972 ListScope Group(W, "Symbols");
3973 this->dumper()->printSymbolsHelper(false);
3976 template <class ELFT>
3977 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
3978 ListScope Group(W, "DynamicSymbols");
3979 this->dumper()->printSymbolsHelper(true);
3982 template <class ELFT>
3983 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3984 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3985 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3986 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3987 if (DynRelRegion.Size && DynRelaRegion.Size)
3988 report_fatal_error("There are both REL and RELA dynamic relocations");
3989 W.startLine() << "Dynamic Relocations {\n";
3991 if (DynRelaRegion.Size > 0)
3992 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3993 printDynamicRelocation(Obj, Rela);
3995 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3997 Rela.r_offset = Rel.r_offset;
3998 Rela.r_info = Rel.r_info;
4000 printDynamicRelocation(Obj, Rela);
4002 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela))
4003 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
4004 printDynamicRelocation(Obj, Rela);
4006 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
4008 Rela.r_offset = Rel.r_offset;
4009 Rela.r_info = Rel.r_info;
4011 printDynamicRelocation(Obj, Rela);
4014 W.startLine() << "}\n";
4017 template <class ELFT>
4018 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) {
4019 SmallString<32> RelocName;
4020 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
4021 StringRef SymbolName;
4022 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL());
4023 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
4025 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
4026 if (opts::ExpandRelocs) {
4027 DictScope Group(W, "Relocation");
4028 W.printHex("Offset", Rel.r_offset);
4029 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
4030 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-");
4031 W.printHex("Addend", Rel.r_addend);
4033 raw_ostream &OS = W.startLine();
4034 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
4035 << (!SymbolName.empty() ? SymbolName : "-") << " "
4036 << W.hex(Rel.r_addend) << "\n";
4040 template <class ELFT>
4041 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
4042 ListScope L(W, "ProgramHeaders");
4044 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
4045 DictScope P(W, "ProgramHeader");
4047 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type),
4049 W.printHex("Offset", Phdr.p_offset);
4050 W.printHex("VirtualAddress", Phdr.p_vaddr);
4051 W.printHex("PhysicalAddress", Phdr.p_paddr);
4052 W.printNumber("FileSize", Phdr.p_filesz);
4053 W.printNumber("MemSize", Phdr.p_memsz);
4054 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags));
4055 W.printNumber("Alignment", Phdr.p_align);
4059 template <class ELFT>
4060 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
4061 W.startLine() << "Hash Histogram not implemented!\n";
4064 template <class ELFT>
4065 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
4066 W.startLine() << "printNotes not implemented!\n";
4069 template <class ELFT>
4070 void LLVMStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) {
4071 auto PrintEntry = [&](const Elf_Addr *E) {
4072 W.printHex("Address", Parser.getGotAddress(E));
4073 W.printNumber("Access", Parser.getGotOffset(E));
4074 W.printHex("Initial", *E);
4077 DictScope GS(W, Parser.IsStatic ? "Static GOT" : "Primary GOT");
4079 W.printHex("Canonical gp value", Parser.getGp());
4081 ListScope RS(W, "Reserved entries");
4083 DictScope D(W, "Entry");
4084 PrintEntry(Parser.getGotLazyResolver());
4085 W.printString("Purpose", StringRef("Lazy resolver"));
4088 if (Parser.getGotModulePointer()) {
4089 DictScope D(W, "Entry");
4090 PrintEntry(Parser.getGotModulePointer());
4091 W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
4095 ListScope LS(W, "Local entries");
4096 for (auto &E : Parser.getLocalEntries()) {
4097 DictScope D(W, "Entry");
4102 if (Parser.IsStatic)
4106 ListScope GS(W, "Global entries");
4107 for (auto &E : Parser.getGlobalEntries()) {
4108 DictScope D(W, "Entry");
4112 const Elf_Sym *Sym = Parser.getGotSym(&E);
4113 W.printHex("Value", Sym->st_value);
4114 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
4116 unsigned SectionIndex = 0;
4117 StringRef SectionName;
4118 this->dumper()->getSectionNameIndex(
4119 Sym, this->dumper()->dynamic_symbols().begin(), SectionName,
4121 W.printHex("Section", SectionName, SectionIndex);
4123 std::string SymName = this->dumper()->getFullSymbolName(
4124 Sym, this->dumper()->getDynamicStringTable(), true);
4125 W.printNumber("Name", SymName, Sym->st_name);
4129 W.printNumber("Number of TLS and multi-GOT entries",
4130 uint64_t(Parser.getOtherEntries().size()));
4133 template <class ELFT>
4134 void LLVMStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) {
4135 auto PrintEntry = [&](const Elf_Addr *E) {
4136 W.printHex("Address", Parser.getPltAddress(E));
4137 W.printHex("Initial", *E);
4140 DictScope GS(W, "PLT GOT");
4143 ListScope RS(W, "Reserved entries");
4145 DictScope D(W, "Entry");
4146 PrintEntry(Parser.getPltLazyResolver());
4147 W.printString("Purpose", StringRef("PLT lazy resolver"));
4150 if (auto E = Parser.getPltModulePointer()) {
4151 DictScope D(W, "Entry");
4153 W.printString("Purpose", StringRef("Module pointer"));
4157 ListScope LS(W, "Entries");
4158 for (auto &E : Parser.getPltEntries()) {
4159 DictScope D(W, "Entry");
4162 const Elf_Sym *Sym = Parser.getPltSym(&E);
4163 W.printHex("Value", Sym->st_value);
4164 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
4166 unsigned SectionIndex = 0;
4167 StringRef SectionName;
4168 this->dumper()->getSectionNameIndex(
4169 Sym, this->dumper()->dynamic_symbols().begin(), SectionName,
4171 W.printHex("Section", SectionName, SectionIndex);
4173 std::string SymName =
4174 this->dumper()->getFullSymbolName(Sym, Parser.getPltStrTable(), true);
4175 W.printNumber("Name", SymName, Sym->st_name);