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_Shdr = typename ELFO::Elf_Shdr; \
81 using Elf_Sym = typename ELFO::Elf_Sym; \
82 using Elf_Dyn = typename ELFO::Elf_Dyn; \
83 using Elf_Dyn_Range = typename ELFO::Elf_Dyn_Range; \
84 using Elf_Rel = typename ELFO::Elf_Rel; \
85 using Elf_Rela = typename ELFO::Elf_Rela; \
86 using Elf_Rel_Range = typename ELFO::Elf_Rel_Range; \
87 using Elf_Rela_Range = typename ELFO::Elf_Rela_Range; \
88 using Elf_Phdr = typename ELFO::Elf_Phdr; \
89 using Elf_Half = typename ELFO::Elf_Half; \
90 using Elf_Ehdr = typename ELFO::Elf_Ehdr; \
91 using Elf_Word = typename ELFO::Elf_Word; \
92 using Elf_Hash = typename ELFO::Elf_Hash; \
93 using Elf_GnuHash = typename ELFO::Elf_GnuHash; \
94 using Elf_Sym_Range = typename ELFO::Elf_Sym_Range; \
95 using Elf_Versym = typename ELFO::Elf_Versym; \
96 using Elf_Verneed = typename ELFO::Elf_Verneed; \
97 using Elf_Vernaux = typename ELFO::Elf_Vernaux; \
98 using Elf_Verdef = typename ELFO::Elf_Verdef; \
99 using Elf_Verdaux = typename ELFO::Elf_Verdaux; \
100 using uintX_t = typename ELFO::uintX_t;
104 template <class ELFT> class DumpStyle;
106 /// Represents a contiguous uniform range in the file. We cannot just create a
107 /// range directly because when creating one of these from the .dynamic table
108 /// the size, entity size and virtual address are different entries in arbitrary
109 /// order (DT_REL, DT_RELSZ, DT_RELENT for example).
110 struct DynRegionInfo {
111 DynRegionInfo() = default;
112 DynRegionInfo(const void *A, uint64_t S, uint64_t ES)
113 : Addr(A), Size(S), EntSize(ES) {}
115 /// \brief Address in current address space.
116 const void *Addr = nullptr;
117 /// \brief Size in bytes of the region.
119 /// \brief Size of each entity in the region.
120 uint64_t EntSize = 0;
122 template <typename Type> ArrayRef<Type> getAsArrayRef() const {
123 const Type *Start = reinterpret_cast<const Type *>(Addr);
125 return {Start, Start};
126 if (EntSize != sizeof(Type) || Size % EntSize)
127 reportError("Invalid entity size");
128 return {Start, Start + (Size / EntSize)};
132 template<typename ELFT>
133 class ELFDumper : public ObjDumper {
135 ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer);
137 void printFileHeaders() override;
138 void printSections() override;
139 void printRelocations() override;
140 void printDynamicRelocations() override;
141 void printSymbols() override;
142 void printDynamicSymbols() override;
143 void printUnwindInfo() override;
145 void printDynamicTable() override;
146 void printNeededLibraries() override;
147 void printProgramHeaders() override;
148 void printHashTable() override;
149 void printGnuHashTable() override;
150 void printLoadName() override;
151 void printVersionInfo() override;
152 void printGroupSections() override;
154 void printAttributes() override;
155 void printMipsPLTGOT() override;
156 void printMipsABIFlags() override;
157 void printMipsReginfo() override;
158 void printMipsOptions() override;
160 void printStackMap() const override;
162 void printHashHistogram() override;
164 void printNotes() override;
167 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle;
169 TYPEDEF_ELF_TYPES(ELFT)
171 DynRegionInfo checkDRI(DynRegionInfo DRI) {
172 if (DRI.Addr < Obj->base() ||
173 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize())
174 error(llvm::object::object_error::parse_failed);
178 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) {
179 return checkDRI({Obj->base() + P->p_offset, P->p_filesz, EntSize});
182 DynRegionInfo createDRIFrom(const Elf_Shdr *S) {
183 return checkDRI({Obj->base() + S->sh_offset, S->sh_size, S->sh_entsize});
186 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments);
188 void printValue(uint64_t Type, uint64_t Value);
190 StringRef getDynamicString(uint64_t Offset) const;
191 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb,
192 bool &IsDefault) const;
193 void LoadVersionMap() const;
194 void LoadVersionNeeds(const Elf_Shdr *ec) const;
195 void LoadVersionDefs(const Elf_Shdr *sec) const;
198 DynRegionInfo DynRelRegion;
199 DynRegionInfo DynRelaRegion;
200 DynRegionInfo DynPLTRelRegion;
201 DynRegionInfo DynSymRegion;
202 DynRegionInfo DynamicTable;
203 StringRef DynamicStringTable;
205 const Elf_Hash *HashTable = nullptr;
206 const Elf_GnuHash *GnuHashTable = nullptr;
207 const Elf_Shdr *DotSymtabSec = nullptr;
208 StringRef DynSymtabName;
209 ArrayRef<Elf_Word> ShndxTable;
211 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version
212 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r
213 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d
215 // Records for each version index the corresponding Verdef or Vernaux entry.
216 // This is filled the first time LoadVersionMap() is called.
217 class VersionMapEntry : public PointerIntPair<const void *, 1> {
219 // If the integer is 0, this is an Elf_Verdef*.
220 // If the integer is 1, this is an Elf_Vernaux*.
221 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {}
222 VersionMapEntry(const Elf_Verdef *verdef)
223 : PointerIntPair<const void *, 1>(verdef, 0) {}
224 VersionMapEntry(const Elf_Vernaux *vernaux)
225 : PointerIntPair<const void *, 1>(vernaux, 1) {}
227 bool isNull() const { return getPointer() == nullptr; }
228 bool isVerdef() const { return !isNull() && getInt() == 0; }
229 bool isVernaux() const { return !isNull() && getInt() == 1; }
230 const Elf_Verdef *getVerdef() const {
231 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr;
233 const Elf_Vernaux *getVernaux() const {
234 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr;
237 mutable SmallVector<VersionMapEntry, 16> VersionMap;
240 Elf_Dyn_Range dynamic_table() const {
241 return DynamicTable.getAsArrayRef<Elf_Dyn>();
244 Elf_Sym_Range dynamic_symbols() const {
245 return DynSymRegion.getAsArrayRef<Elf_Sym>();
248 Elf_Rel_Range dyn_rels() const;
249 Elf_Rela_Range dyn_relas() const;
250 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable,
251 bool IsDynamic) const;
253 void printSymbolsHelper(bool IsDynamic) const;
254 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; }
255 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; }
256 StringRef getDynamicStringTable() const { return DynamicStringTable; }
257 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; }
258 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; }
259 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; }
260 const Elf_Hash *getHashTable() const { return HashTable; }
261 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; }
264 template <class ELFT>
265 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const {
266 StringRef StrTable, SymtabName;
268 Elf_Sym_Range Syms(nullptr, nullptr);
270 StrTable = DynamicStringTable;
271 Syms = dynamic_symbols();
272 SymtabName = DynSymtabName;
273 if (DynSymRegion.Addr)
274 Entries = DynSymRegion.Size / DynSymRegion.EntSize;
278 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec));
279 Syms = unwrapOrError(Obj->symbols(DotSymtabSec));
280 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec));
281 Entries = DotSymtabSec->getEntityCount();
283 if (Syms.begin() == Syms.end())
285 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries);
286 for (const auto &Sym : Syms)
287 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic);
290 template <typename ELFT> class DumpStyle {
292 using Elf_Shdr = typename ELFFile<ELFT>::Elf_Shdr;
293 using Elf_Sym = typename ELFFile<ELFT>::Elf_Sym;
295 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {}
296 virtual ~DumpStyle() = default;
298 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0;
299 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0;
300 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0;
301 virtual void printSections(const ELFFile<ELFT> *Obj) = 0;
302 virtual void printSymbols(const ELFFile<ELFT> *Obj) = 0;
303 virtual void printDynamicSymbols(const ELFFile<ELFT> *Obj) = 0;
304 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0;
305 virtual void printSymtabMessage(const ELFFile<ELFT> *obj, StringRef Name,
307 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol,
308 const Elf_Sym *FirstSym, StringRef StrTable,
310 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj) = 0;
311 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0;
312 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0;
313 const ELFDumper<ELFT> *dumper() const { return Dumper; }
316 const ELFDumper<ELFT> *Dumper;
319 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> {
320 formatted_raw_ostream OS;
323 TYPEDEF_ELF_TYPES(ELFT)
325 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
326 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {}
328 void printFileHeaders(const ELFO *Obj) override;
329 void printGroupSections(const ELFFile<ELFT> *Obj) override;
330 void printRelocations(const ELFO *Obj) override;
331 void printSections(const ELFO *Obj) override;
332 void printSymbols(const ELFO *Obj) override;
333 void printDynamicSymbols(const ELFO *Obj) override;
334 void printDynamicRelocations(const ELFO *Obj) override;
335 void printSymtabMessage(const ELFO *Obj, StringRef Name,
336 size_t Offset) override;
337 void printProgramHeaders(const ELFO *Obj) override;
338 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
339 void printNotes(const ELFFile<ELFT> *Obj) override;
346 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {}
347 Field(unsigned Col) : Str(""), Column(Col) {}
350 template <typename T, typename TEnum>
351 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) {
352 for (const auto &EnumItem : EnumValues)
353 if (EnumItem.Value == Value)
354 return EnumItem.AltName;
355 return to_hexString(Value, false);
358 formatted_raw_ostream &printField(struct Field F) {
360 OS.PadToColumn(F.Column);
365 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym,
366 StringRef StrTable, uint32_t Bucket);
367 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
368 const Elf_Rela &R, bool IsRela);
369 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
370 StringRef StrTable, bool IsDynamic) override;
371 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol,
372 const Elf_Sym *FirstSym);
373 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela);
374 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
375 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
376 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
377 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
380 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> {
382 TYPEDEF_ELF_TYPES(ELFT)
384 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
385 : DumpStyle<ELFT>(Dumper), W(W) {}
387 void printFileHeaders(const ELFO *Obj) override;
388 void printGroupSections(const ELFFile<ELFT> *Obj) override;
389 void printRelocations(const ELFO *Obj) override;
390 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj);
391 void printSections(const ELFO *Obj) override;
392 void printSymbols(const ELFO *Obj) override;
393 void printDynamicSymbols(const ELFO *Obj) override;
394 void printDynamicRelocations(const ELFO *Obj) override;
395 void printProgramHeaders(const ELFO *Obj) override;
396 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
397 void printNotes(const ELFFile<ELFT> *Obj) override;
400 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab);
401 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel);
402 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
403 StringRef StrTable, bool IsDynamic) override;
408 } // end anonymous namespace
412 template <class ELFT>
413 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj,
414 ScopedPrinter &Writer,
415 std::unique_ptr<ObjDumper> &Result) {
416 Result.reset(new ELFDumper<ELFT>(Obj, Writer));
417 return readobj_error::success;
420 std::error_code createELFDumper(const object::ObjectFile *Obj,
421 ScopedPrinter &Writer,
422 std::unique_ptr<ObjDumper> &Result) {
423 // Little-endian 32-bit
424 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
425 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
428 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
429 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
431 // Little-endian 64-bit
432 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
433 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
436 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
437 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
439 return readobj_error::unsupported_obj_file_format;
442 } // end namespace llvm
444 // Iterate through the versions needed section, and place each Elf_Vernaux
445 // in the VersionMap according to its index.
446 template <class ELFT>
447 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
448 unsigned vn_size = sec->sh_size; // Size of section in bytes
449 unsigned vn_count = sec->sh_info; // Number of Verneed entries
450 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
451 const char *sec_end = sec_start + vn_size;
452 // The first Verneed entry is at the start of the section.
453 const char *p = sec_start;
454 for (unsigned i = 0; i < vn_count; i++) {
455 if (p + sizeof(Elf_Verneed) > sec_end)
456 report_fatal_error("Section ended unexpectedly while scanning "
457 "version needed records.");
458 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
459 if (vn->vn_version != ELF::VER_NEED_CURRENT)
460 report_fatal_error("Unexpected verneed version");
461 // Iterate through the Vernaux entries
462 const char *paux = p + vn->vn_aux;
463 for (unsigned j = 0; j < vn->vn_cnt; j++) {
464 if (paux + sizeof(Elf_Vernaux) > sec_end)
465 report_fatal_error("Section ended unexpected while scanning auxiliary "
466 "version needed records.");
467 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
468 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
469 if (index >= VersionMap.size())
470 VersionMap.resize(index + 1);
471 VersionMap[index] = VersionMapEntry(vna);
472 paux += vna->vna_next;
478 // Iterate through the version definitions, and place each Elf_Verdef
479 // in the VersionMap according to its index.
480 template <class ELFT>
481 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
482 unsigned vd_size = sec->sh_size; // Size of section in bytes
483 unsigned vd_count = sec->sh_info; // Number of Verdef entries
484 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
485 const char *sec_end = sec_start + vd_size;
486 // The first Verdef entry is at the start of the section.
487 const char *p = sec_start;
488 for (unsigned i = 0; i < vd_count; i++) {
489 if (p + sizeof(Elf_Verdef) > sec_end)
490 report_fatal_error("Section ended unexpectedly while scanning "
491 "version definitions.");
492 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
493 if (vd->vd_version != ELF::VER_DEF_CURRENT)
494 report_fatal_error("Unexpected verdef version");
495 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
496 if (index >= VersionMap.size())
497 VersionMap.resize(index + 1);
498 VersionMap[index] = VersionMapEntry(vd);
503 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const {
504 // If there is no dynamic symtab or version table, there is nothing to do.
505 if (!DynSymRegion.Addr || !dot_gnu_version_sec)
508 // Has the VersionMap already been loaded?
509 if (VersionMap.size() > 0)
512 // The first two version indexes are reserved.
513 // Index 0 is LOCAL, index 1 is GLOBAL.
514 VersionMap.push_back(VersionMapEntry());
515 VersionMap.push_back(VersionMapEntry());
517 if (dot_gnu_version_d_sec)
518 LoadVersionDefs(dot_gnu_version_d_sec);
520 if (dot_gnu_version_r_sec)
521 LoadVersionNeeds(dot_gnu_version_r_sec);
524 template <typename ELFO, class ELFT>
525 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
526 const typename ELFO::Elf_Shdr *Sec,
528 DictScope SS(W, "Version symbols");
531 StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
532 W.printNumber("Section Name", Name, Sec->sh_name);
533 W.printHex("Address", Sec->sh_addr);
534 W.printHex("Offset", Sec->sh_offset);
535 W.printNumber("Link", Sec->sh_link);
537 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset;
538 StringRef StrTable = Dumper->getDynamicStringTable();
540 // Same number of entries in the dynamic symbol table (DT_SYMTAB).
541 ListScope Syms(W, "Symbols");
542 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) {
543 DictScope S(W, "Symbol");
544 std::string FullSymbolName =
545 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */);
546 W.printNumber("Version", *P);
547 W.printString("Name", FullSymbolName);
548 P += sizeof(typename ELFO::Elf_Half);
552 static const EnumEntry<unsigned> SymVersionFlags[] = {
553 {"Base", "BASE", VER_FLG_BASE},
554 {"Weak", "WEAK", VER_FLG_WEAK},
555 {"Info", "INFO", VER_FLG_INFO}};
557 template <typename ELFO, class ELFT>
558 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper,
560 const typename ELFO::Elf_Shdr *Sec,
562 using VerDef = typename ELFO::Elf_Verdef;
563 using VerdAux = typename ELFO::Elf_Verdaux;
565 DictScope SD(W, "SHT_GNU_verdef");
569 // The number of entries in the section SHT_GNU_verdef
570 // is determined by DT_VERDEFNUM tag.
571 unsigned VerDefsNum = 0;
572 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) {
573 if (Dyn.d_tag == DT_VERDEFNUM)
574 VerDefsNum = Dyn.d_un.d_val;
576 const uint8_t *SecStartAddress =
577 (const uint8_t *)Obj->base() + Sec->sh_offset;
578 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size;
579 const uint8_t *P = SecStartAddress;
580 const typename ELFO::Elf_Shdr *StrTab =
581 unwrapOrError(Obj->getSection(Sec->sh_link));
583 while (VerDefsNum--) {
584 if (P + sizeof(VerDef) > SecEndAddress)
585 report_fatal_error("invalid offset in the section");
587 auto *VD = reinterpret_cast<const VerDef *>(P);
588 DictScope Def(W, "Definition");
589 W.printNumber("Version", VD->vd_version);
590 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags));
591 W.printNumber("Index", VD->vd_ndx);
592 W.printNumber("Hash", VD->vd_hash);
593 W.printString("Name",
594 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
595 VD->getAux()->vda_name)));
597 report_fatal_error("at least one definition string must exist");
599 report_fatal_error("more than one predecessor is not expected");
601 if (VD->vd_cnt == 2) {
602 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next;
603 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux);
604 W.printString("Predecessor",
605 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
613 template <typename ELFO, class ELFT>
614 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper,
616 const typename ELFO::Elf_Shdr *Sec,
618 using VerNeed = typename ELFO::Elf_Verneed;
619 using VernAux = typename ELFO::Elf_Vernaux;
621 DictScope SD(W, "SHT_GNU_verneed");
625 unsigned VerNeedNum = 0;
626 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table())
627 if (Dyn.d_tag == DT_VERNEEDNUM)
628 VerNeedNum = Dyn.d_un.d_val;
630 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset;
631 const typename ELFO::Elf_Shdr *StrTab =
632 unwrapOrError(Obj->getSection(Sec->sh_link));
634 const uint8_t *P = SecData;
635 for (unsigned I = 0; I < VerNeedNum; ++I) {
636 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P);
637 DictScope Entry(W, "Dependency");
638 W.printNumber("Version", Need->vn_version);
639 W.printNumber("Count", Need->vn_cnt);
640 W.printString("FileName",
641 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
644 const uint8_t *PAux = P + Need->vn_aux;
645 for (unsigned J = 0; J < Need->vn_cnt; ++J) {
646 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux);
647 DictScope Entry(W, "Entry");
648 W.printNumber("Hash", Aux->vna_hash);
649 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags));
650 W.printNumber("Index", Aux->vna_other);
651 W.printString("Name",
652 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
654 PAux += Aux->vna_next;
660 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() {
661 // Dump version symbol section.
662 printVersionSymbolSection(this, Obj, dot_gnu_version_sec, W);
664 // Dump version definition section.
665 printVersionDefinitionSection(this, Obj, dot_gnu_version_d_sec, W);
667 // Dump version dependency section.
668 printVersionDependencySection(this, Obj, dot_gnu_version_r_sec, W);
671 template <typename ELFT>
672 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab,
674 bool &IsDefault) const {
675 // This is a dynamic symbol. Look in the GNU symbol version table.
676 if (!dot_gnu_version_sec) {
679 return StringRef("");
682 // Determine the position in the symbol table of this entry.
683 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) -
684 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) /
687 // Get the corresponding version index entry
688 const Elf_Versym *vs = unwrapOrError(
689 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index));
690 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
692 // Special markers for unversioned symbols.
693 if (version_index == ELF::VER_NDX_LOCAL ||
694 version_index == ELF::VER_NDX_GLOBAL) {
696 return StringRef("");
699 // Lookup this symbol in the version table
701 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
702 reportError("Invalid version entry");
703 const VersionMapEntry &entry = VersionMap[version_index];
705 // Get the version name string
707 if (entry.isVerdef()) {
708 // The first Verdaux entry holds the name.
709 name_offset = entry.getVerdef()->getAux()->vda_name;
710 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
712 name_offset = entry.getVernaux()->vna_name;
715 if (name_offset >= StrTab.size())
716 reportError("Invalid string offset");
717 return StringRef(StrTab.data() + name_offset);
720 template <typename ELFT>
721 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol,
723 bool IsDynamic) const {
724 StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable));
728 std::string FullSymbolName(SymbolName);
731 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault);
732 FullSymbolName += (IsDefault ? "@@" : "@");
733 FullSymbolName += Version;
734 return FullSymbolName;
737 template <typename ELFT>
739 getSectionNameIndex(const ELFFile<ELFT> &Obj, const typename ELFT::Sym *Symbol,
740 const typename ELFT::Sym *FirstSym,
741 ArrayRef<typename ELFT::Word> ShndxTable,
742 StringRef &SectionName, unsigned &SectionIndex) {
743 SectionIndex = Symbol->st_shndx;
744 if (Symbol->isUndefined())
745 SectionName = "Undefined";
746 else if (Symbol->isProcessorSpecific())
747 SectionName = "Processor Specific";
748 else if (Symbol->isOSSpecific())
749 SectionName = "Operating System Specific";
750 else if (Symbol->isAbsolute())
751 SectionName = "Absolute";
752 else if (Symbol->isCommon())
753 SectionName = "Common";
754 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX)
755 SectionName = "Reserved";
757 if (SectionIndex == SHN_XINDEX)
758 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>(
759 Symbol, FirstSym, ShndxTable));
760 const typename ELFT::Shdr *Sec =
761 unwrapOrError(Obj.getSection(SectionIndex));
762 SectionName = unwrapOrError(Obj.getSectionName(Sec));
766 template <class ELFO>
767 static const typename ELFO::Elf_Shdr *
768 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) {
769 for (const auto &Shdr : unwrapOrError(Obj->sections()))
770 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0)
775 template <class ELFO>
776 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj,
778 for (const auto &Shdr : unwrapOrError(Obj.sections())) {
779 if (Name == unwrapOrError(Obj.getSectionName(&Shdr)))
785 static const EnumEntry<unsigned> ElfClass[] = {
786 {"None", "none", ELF::ELFCLASSNONE},
787 {"32-bit", "ELF32", ELF::ELFCLASS32},
788 {"64-bit", "ELF64", ELF::ELFCLASS64},
791 static const EnumEntry<unsigned> ElfDataEncoding[] = {
792 {"None", "none", ELF::ELFDATANONE},
793 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB},
794 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB},
797 static const EnumEntry<unsigned> ElfObjectFileType[] = {
798 {"None", "NONE (none)", ELF::ET_NONE},
799 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL},
800 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC},
801 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN},
802 {"Core", "CORE (Core file)", ELF::ET_CORE},
805 static const EnumEntry<unsigned> ElfOSABI[] = {
806 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE},
807 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX},
808 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD},
809 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX},
810 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD},
811 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS},
812 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX},
813 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX},
814 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD},
815 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64},
816 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO},
817 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD},
818 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS},
819 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK},
820 {"AROS", "AROS", ELF::ELFOSABI_AROS},
821 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS},
822 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI},
823 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE}
826 static const EnumEntry<unsigned> AMDGPUElfOSABI[] = {
827 {"AMDGPU_HSA", "AMDGPU - HSA", ELF::ELFOSABI_AMDGPU_HSA},
828 {"AMDGPU_PAL", "AMDGPU - PAL", ELF::ELFOSABI_AMDGPU_PAL},
829 {"AMDGPU_MESA3D", "AMDGPU - MESA3D", ELF::ELFOSABI_AMDGPU_MESA3D}
832 static const EnumEntry<unsigned> ARMElfOSABI[] = {
833 {"ARM", "ARM", ELF::ELFOSABI_ARM}
836 static const EnumEntry<unsigned> C6000ElfOSABI[] = {
837 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI},
838 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX}
841 static const EnumEntry<unsigned> ElfMachineType[] = {
842 ENUM_ENT(EM_NONE, "None"),
843 ENUM_ENT(EM_M32, "WE32100"),
844 ENUM_ENT(EM_SPARC, "Sparc"),
845 ENUM_ENT(EM_386, "Intel 80386"),
846 ENUM_ENT(EM_68K, "MC68000"),
847 ENUM_ENT(EM_88K, "MC88000"),
848 ENUM_ENT(EM_IAMCU, "EM_IAMCU"),
849 ENUM_ENT(EM_860, "Intel 80860"),
850 ENUM_ENT(EM_MIPS, "MIPS R3000"),
851 ENUM_ENT(EM_S370, "IBM System/370"),
852 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"),
853 ENUM_ENT(EM_PARISC, "HPPA"),
854 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"),
855 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"),
856 ENUM_ENT(EM_960, "Intel 80960"),
857 ENUM_ENT(EM_PPC, "PowerPC"),
858 ENUM_ENT(EM_PPC64, "PowerPC64"),
859 ENUM_ENT(EM_S390, "IBM S/390"),
860 ENUM_ENT(EM_SPU, "SPU"),
861 ENUM_ENT(EM_V800, "NEC V800 series"),
862 ENUM_ENT(EM_FR20, "Fujistsu FR20"),
863 ENUM_ENT(EM_RH32, "TRW RH-32"),
864 ENUM_ENT(EM_RCE, "Motorola RCE"),
865 ENUM_ENT(EM_ARM, "ARM"),
866 ENUM_ENT(EM_ALPHA, "EM_ALPHA"),
867 ENUM_ENT(EM_SH, "Hitachi SH"),
868 ENUM_ENT(EM_SPARCV9, "Sparc v9"),
869 ENUM_ENT(EM_TRICORE, "Siemens Tricore"),
870 ENUM_ENT(EM_ARC, "ARC"),
871 ENUM_ENT(EM_H8_300, "Hitachi H8/300"),
872 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"),
873 ENUM_ENT(EM_H8S, "Hitachi H8S"),
874 ENUM_ENT(EM_H8_500, "Hitachi H8/500"),
875 ENUM_ENT(EM_IA_64, "Intel IA-64"),
876 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"),
877 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"),
878 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"),
879 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"),
880 ENUM_ENT(EM_PCP, "Siemens PCP"),
881 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"),
882 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"),
883 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"),
884 ENUM_ENT(EM_ME16, "Toyota ME16 processor"),
885 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"),
886 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"),
887 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"),
888 ENUM_ENT(EM_PDSP, "Sony DSP processor"),
889 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"),
890 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"),
891 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"),
892 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"),
893 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"),
894 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"),
895 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"),
896 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"),
897 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"),
898 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"),
899 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"),
900 ENUM_ENT(EM_VAX, "Digital VAX"),
901 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"),
902 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"),
903 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"),
904 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"),
905 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"),
906 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"),
907 ENUM_ENT(EM_PRISM, "Vitesse Prism"),
908 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"),
909 ENUM_ENT(EM_FR30, "Fujitsu FR30"),
910 ENUM_ENT(EM_D10V, "Mitsubishi D10V"),
911 ENUM_ENT(EM_D30V, "Mitsubishi D30V"),
912 ENUM_ENT(EM_V850, "NEC v850"),
913 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"),
914 ENUM_ENT(EM_MN10300, "Matsushita MN10300"),
915 ENUM_ENT(EM_MN10200, "Matsushita MN10200"),
916 ENUM_ENT(EM_PJ, "picoJava"),
917 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"),
918 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"),
919 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"),
920 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"),
921 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"),
922 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"),
923 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"),
924 ENUM_ENT(EM_SNP1K, "EM_SNP1K"),
925 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"),
926 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"),
927 ENUM_ENT(EM_MAX, "MAX Processor"),
928 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"),
929 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"),
930 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"),
931 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"),
932 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"),
933 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"),
934 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"),
935 ENUM_ENT(EM_UNICORE, "Unicore"),
936 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"),
937 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"),
938 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"),
939 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"),
940 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"),
941 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"),
942 ENUM_ENT(EM_M16C, "Renesas M16C"),
943 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"),
944 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"),
945 ENUM_ENT(EM_M32C, "Renesas M32C"),
946 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"),
947 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"),
948 ENUM_ENT(EM_SHARC, "EM_SHARC"),
949 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"),
950 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"),
951 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"),
952 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"),
953 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"),
954 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"),
955 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"),
956 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"),
957 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"),
958 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"),
959 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"),
960 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"),
961 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"),
962 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"),
963 ENUM_ENT(EM_8051, "Intel 8051 and variants"),
964 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"),
965 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"),
966 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"),
967 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"),
968 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"),
969 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"),
970 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"),
971 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"),
972 ENUM_ENT(EM_RX, "Renesas RX"),
973 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"),
974 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"),
975 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"),
976 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"),
977 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"),
978 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"),
979 ENUM_ENT(EM_L10M, "EM_L10M"),
980 ENUM_ENT(EM_K10M, "EM_K10M"),
981 ENUM_ENT(EM_AARCH64, "AArch64"),
982 ENUM_ENT(EM_AVR32, "Atmel Corporation 32-bit microprocessor family"),
983 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"),
984 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"),
985 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"),
986 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"),
987 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"),
988 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"),
989 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"),
990 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"),
991 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"),
992 ENUM_ENT(EM_OPEN8, "EM_OPEN8"),
993 ENUM_ENT(EM_RL78, "Renesas RL78"),
994 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"),
995 ENUM_ENT(EM_78KOR, "EM_78KOR"),
996 ENUM_ENT(EM_56800EX, "EM_56800EX"),
997 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"),
998 ENUM_ENT(EM_RISCV, "RISC-V"),
999 ENUM_ENT(EM_WEBASSEMBLY, "EM_WEBASSEMBLY"),
1000 ENUM_ENT(EM_LANAI, "EM_LANAI"),
1001 ENUM_ENT(EM_BPF, "EM_BPF"),
1004 static const EnumEntry<unsigned> ElfSymbolBindings[] = {
1005 {"Local", "LOCAL", ELF::STB_LOCAL},
1006 {"Global", "GLOBAL", ELF::STB_GLOBAL},
1007 {"Weak", "WEAK", ELF::STB_WEAK},
1008 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}};
1010 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = {
1011 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT},
1012 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL},
1013 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN},
1014 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}};
1016 static const EnumEntry<unsigned> ElfSymbolTypes[] = {
1017 {"None", "NOTYPE", ELF::STT_NOTYPE},
1018 {"Object", "OBJECT", ELF::STT_OBJECT},
1019 {"Function", "FUNC", ELF::STT_FUNC},
1020 {"Section", "SECTION", ELF::STT_SECTION},
1021 {"File", "FILE", ELF::STT_FILE},
1022 {"Common", "COMMON", ELF::STT_COMMON},
1023 {"TLS", "TLS", ELF::STT_TLS},
1024 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}};
1026 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = {
1027 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL }
1030 static const char *getGroupType(uint32_t Flag) {
1031 if (Flag & ELF::GRP_COMDAT)
1037 static const EnumEntry<unsigned> ElfSectionFlags[] = {
1038 ENUM_ENT(SHF_WRITE, "W"),
1039 ENUM_ENT(SHF_ALLOC, "A"),
1040 ENUM_ENT(SHF_EXCLUDE, "E"),
1041 ENUM_ENT(SHF_EXECINSTR, "X"),
1042 ENUM_ENT(SHF_MERGE, "M"),
1043 ENUM_ENT(SHF_STRINGS, "S"),
1044 ENUM_ENT(SHF_INFO_LINK, "I"),
1045 ENUM_ENT(SHF_LINK_ORDER, "L"),
1046 ENUM_ENT(SHF_OS_NONCONFORMING, "o"),
1047 ENUM_ENT(SHF_GROUP, "G"),
1048 ENUM_ENT(SHF_TLS, "T"),
1049 ENUM_ENT(SHF_MASKOS, "o"),
1050 ENUM_ENT(SHF_MASKPROC, "p"),
1051 ENUM_ENT_1(SHF_COMPRESSED),
1054 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = {
1055 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
1056 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION)
1059 static const EnumEntry<unsigned> ElfARMSectionFlags[] = {
1060 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE)
1063 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = {
1064 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL)
1067 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = {
1068 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES),
1069 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ),
1070 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ),
1071 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP),
1072 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ),
1073 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ),
1074 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ),
1075 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING )
1078 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = {
1079 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE)
1082 static std::string getGNUFlags(uint64_t Flags) {
1084 for (auto Entry : ElfSectionFlags) {
1085 uint64_t Flag = Entry.Value & Flags;
1086 Flags &= ~Entry.Value;
1088 case ELF::SHF_WRITE:
1089 case ELF::SHF_ALLOC:
1090 case ELF::SHF_EXECINSTR:
1091 case ELF::SHF_MERGE:
1092 case ELF::SHF_STRINGS:
1093 case ELF::SHF_INFO_LINK:
1094 case ELF::SHF_LINK_ORDER:
1095 case ELF::SHF_OS_NONCONFORMING:
1096 case ELF::SHF_GROUP:
1098 case ELF::SHF_EXCLUDE:
1099 Str += Entry.AltName;
1102 if (Flag & ELF::SHF_MASKOS)
1104 else if (Flag & ELF::SHF_MASKPROC)
1113 static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
1114 // Check potentially overlapped processor-specific
1115 // program header type.
1119 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
1122 case ELF::EM_MIPS_RS3_LE:
1124 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
1125 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
1126 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
1127 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS);
1132 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
1133 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
1134 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
1135 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
1136 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
1137 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
1138 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
1139 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
1141 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
1142 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
1144 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
1145 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
1147 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE);
1148 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED);
1149 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA);
1155 static std::string getElfPtType(unsigned Arch, unsigned Type) {
1157 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL)
1158 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD)
1159 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC)
1160 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP)
1161 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE)
1162 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB)
1163 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR)
1164 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS)
1165 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME)
1166 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND)
1167 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK)
1168 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO)
1170 // All machine specific PT_* types
1173 if (Type == ELF::PT_ARM_EXIDX)
1177 case ELF::EM_MIPS_RS3_LE:
1179 case PT_MIPS_REGINFO:
1181 case PT_MIPS_RTPROC:
1183 case PT_MIPS_OPTIONS:
1185 case PT_MIPS_ABIFLAGS:
1191 return std::string("<unknown>: ") + to_string(format_hex(Type, 1));
1194 static const EnumEntry<unsigned> ElfSegmentFlags[] = {
1195 LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
1196 LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
1197 LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
1200 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
1201 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER),
1202 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC),
1203 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC),
1204 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2),
1205 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE),
1206 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64),
1207 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008),
1208 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32),
1209 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64),
1210 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32),
1211 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64),
1212 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900),
1213 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010),
1214 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100),
1215 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650),
1216 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120),
1217 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111),
1218 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1),
1219 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON),
1220 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR),
1221 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2),
1222 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3),
1223 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400),
1224 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900),
1225 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500),
1226 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000),
1227 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E),
1228 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F),
1229 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A),
1230 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS),
1231 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16),
1232 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX),
1233 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1),
1234 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2),
1235 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3),
1236 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4),
1237 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5),
1238 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32),
1239 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64),
1240 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2),
1241 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2),
1242 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6),
1243 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6)
1246 static const EnumEntry<unsigned> ElfHeaderAMDGPUFlags[] = {
1247 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_ARCH_NONE),
1248 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_ARCH_R600),
1249 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_ARCH_GCN)
1252 static const EnumEntry<unsigned> ElfHeaderRISCVFlags[] = {
1253 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_RVC),
1254 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_SINGLE),
1255 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_DOUBLE),
1256 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_QUAD),
1257 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_RVE)
1260 static const EnumEntry<unsigned> ElfSymOtherFlags[] = {
1261 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL),
1262 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN),
1263 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED)
1266 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = {
1267 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1268 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1269 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC),
1270 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS)
1273 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = {
1274 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1275 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1276 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16)
1279 static const char *getElfMipsOptionsOdkType(unsigned Odk) {
1281 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL);
1282 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO);
1283 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS);
1284 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD);
1285 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH);
1286 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL);
1287 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS);
1288 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND);
1289 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR);
1290 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP);
1291 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT);
1292 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE);
1298 template <typename ELFT>
1299 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer)
1300 : ObjDumper(Writer), Obj(Obj) {
1301 SmallVector<const Elf_Phdr *, 4> LoadSegments;
1302 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
1303 if (Phdr.p_type == ELF::PT_DYNAMIC) {
1304 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn));
1307 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0)
1309 LoadSegments.push_back(&Phdr);
1312 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
1313 switch (Sec.sh_type) {
1314 case ELF::SHT_SYMTAB:
1315 if (DotSymtabSec != nullptr)
1316 reportError("Multiple SHT_SYMTAB");
1317 DotSymtabSec = &Sec;
1319 case ELF::SHT_DYNSYM:
1320 if (DynSymRegion.Size)
1321 reportError("Multiple SHT_DYNSYM");
1322 DynSymRegion = createDRIFrom(&Sec);
1323 // This is only used (if Elf_Shdr present)for naming section in GNU style
1324 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec));
1325 DynamicStringTable = unwrapOrError(Obj->getStringTableForSymtab(Sec));
1327 case ELF::SHT_SYMTAB_SHNDX:
1328 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec));
1330 case ELF::SHT_GNU_versym:
1331 if (dot_gnu_version_sec != nullptr)
1332 reportError("Multiple SHT_GNU_versym");
1333 dot_gnu_version_sec = &Sec;
1335 case ELF::SHT_GNU_verdef:
1336 if (dot_gnu_version_d_sec != nullptr)
1337 reportError("Multiple SHT_GNU_verdef");
1338 dot_gnu_version_d_sec = &Sec;
1340 case ELF::SHT_GNU_verneed:
1341 if (dot_gnu_version_r_sec != nullptr)
1342 reportError("Multiple SHT_GNU_verneed");
1343 dot_gnu_version_r_sec = &Sec;
1348 parseDynamicTable(LoadSegments);
1350 if (opts::Output == opts::GNU)
1351 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this));
1353 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this));
1356 template <typename ELFT>
1357 void ELFDumper<ELFT>::parseDynamicTable(
1358 ArrayRef<const Elf_Phdr *> LoadSegments) {
1359 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * {
1360 const Elf_Phdr *const *I =
1361 std::upper_bound(LoadSegments.begin(), LoadSegments.end(), VAddr,
1362 [](uint64_t VAddr, const Elf_Phdr_Impl<ELFT> *Phdr) {
1363 return VAddr < Phdr->p_vaddr;
1365 if (I == LoadSegments.begin())
1366 report_fatal_error("Virtual address is not in any segment");
1368 const Elf_Phdr &Phdr = **I;
1369 uint64_t Delta = VAddr - Phdr.p_vaddr;
1370 if (Delta >= Phdr.p_filesz)
1371 report_fatal_error("Virtual address is not in any segment");
1372 return Obj->base() + Phdr.p_offset + Delta;
1375 uint64_t SONameOffset = 0;
1376 const char *StringTableBegin = nullptr;
1377 uint64_t StringTableSize = 0;
1378 for (const Elf_Dyn &Dyn : dynamic_table()) {
1379 switch (Dyn.d_tag) {
1382 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr()));
1384 case ELF::DT_GNU_HASH:
1386 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr()));
1388 case ELF::DT_STRTAB:
1389 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr());
1392 StringTableSize = Dyn.getVal();
1394 case ELF::DT_SYMTAB:
1395 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr());
1396 DynSymRegion.EntSize = sizeof(Elf_Sym);
1399 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr());
1401 case ELF::DT_RELASZ:
1402 DynRelaRegion.Size = Dyn.getVal();
1404 case ELF::DT_RELAENT:
1405 DynRelaRegion.EntSize = Dyn.getVal();
1407 case ELF::DT_SONAME:
1408 SONameOffset = Dyn.getVal();
1411 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1414 DynRelRegion.Size = Dyn.getVal();
1416 case ELF::DT_RELENT:
1417 DynRelRegion.EntSize = Dyn.getVal();
1419 case ELF::DT_PLTREL:
1420 if (Dyn.getVal() == DT_REL)
1421 DynPLTRelRegion.EntSize = sizeof(Elf_Rel);
1422 else if (Dyn.getVal() == DT_RELA)
1423 DynPLTRelRegion.EntSize = sizeof(Elf_Rela);
1425 reportError(Twine("unknown DT_PLTREL value of ") +
1426 Twine((uint64_t)Dyn.getVal()));
1428 case ELF::DT_JMPREL:
1429 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1431 case ELF::DT_PLTRELSZ:
1432 DynPLTRelRegion.Size = Dyn.getVal();
1436 if (StringTableBegin)
1437 DynamicStringTable = StringRef(StringTableBegin, StringTableSize);
1439 SOName = getDynamicString(SONameOffset);
1442 template <typename ELFT>
1443 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const {
1444 return DynRelRegion.getAsArrayRef<Elf_Rel>();
1447 template <typename ELFT>
1448 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const {
1449 return DynRelaRegion.getAsArrayRef<Elf_Rela>();
1452 template<class ELFT>
1453 void ELFDumper<ELFT>::printFileHeaders() {
1454 ELFDumperStyle->printFileHeaders(Obj);
1457 template<class ELFT>
1458 void ELFDumper<ELFT>::printSections() {
1459 ELFDumperStyle->printSections(Obj);
1462 template<class ELFT>
1463 void ELFDumper<ELFT>::printRelocations() {
1464 ELFDumperStyle->printRelocations(Obj);
1467 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() {
1468 ELFDumperStyle->printProgramHeaders(Obj);
1471 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() {
1472 ELFDumperStyle->printDynamicRelocations(Obj);
1475 template<class ELFT>
1476 void ELFDumper<ELFT>::printSymbols() {
1477 ELFDumperStyle->printSymbols(Obj);
1480 template<class ELFT>
1481 void ELFDumper<ELFT>::printDynamicSymbols() {
1482 ELFDumperStyle->printDynamicSymbols(Obj);
1485 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() {
1486 ELFDumperStyle->printHashHistogram(Obj);
1489 template <class ELFT> void ELFDumper<ELFT>::printNotes() {
1490 ELFDumperStyle->printNotes(Obj);
1493 #define LLVM_READOBJ_TYPE_CASE(name) \
1494 case DT_##name: return #name
1496 static const char *getTypeString(unsigned Arch, uint64_t Type) {
1500 LLVM_READOBJ_TYPE_CASE(HEXAGON_SYMSZ);
1501 LLVM_READOBJ_TYPE_CASE(HEXAGON_VER);
1502 LLVM_READOBJ_TYPE_CASE(HEXAGON_PLT);
1506 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL);
1507 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION);
1508 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS);
1509 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS);
1510 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO);
1511 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO);
1512 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO);
1513 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM);
1514 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP);
1515 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT);
1516 LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS);
1520 LLVM_READOBJ_TYPE_CASE(ANDROID_REL);
1521 LLVM_READOBJ_TYPE_CASE(ANDROID_RELSZ);
1522 LLVM_READOBJ_TYPE_CASE(ANDROID_RELA);
1523 LLVM_READOBJ_TYPE_CASE(ANDROID_RELASZ);
1524 LLVM_READOBJ_TYPE_CASE(BIND_NOW);
1525 LLVM_READOBJ_TYPE_CASE(DEBUG);
1526 LLVM_READOBJ_TYPE_CASE(FINI);
1527 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
1528 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
1529 LLVM_READOBJ_TYPE_CASE(FLAGS);
1530 LLVM_READOBJ_TYPE_CASE(FLAGS_1);
1531 LLVM_READOBJ_TYPE_CASE(HASH);
1532 LLVM_READOBJ_TYPE_CASE(INIT);
1533 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
1534 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
1535 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
1536 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
1537 LLVM_READOBJ_TYPE_CASE(JMPREL);
1538 LLVM_READOBJ_TYPE_CASE(NEEDED);
1539 LLVM_READOBJ_TYPE_CASE(NULL);
1540 LLVM_READOBJ_TYPE_CASE(PLTGOT);
1541 LLVM_READOBJ_TYPE_CASE(PLTREL);
1542 LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
1543 LLVM_READOBJ_TYPE_CASE(REL);
1544 LLVM_READOBJ_TYPE_CASE(RELA);
1545 LLVM_READOBJ_TYPE_CASE(RELENT);
1546 LLVM_READOBJ_TYPE_CASE(RELSZ);
1547 LLVM_READOBJ_TYPE_CASE(RELAENT);
1548 LLVM_READOBJ_TYPE_CASE(RELASZ);
1549 LLVM_READOBJ_TYPE_CASE(RPATH);
1550 LLVM_READOBJ_TYPE_CASE(RUNPATH);
1551 LLVM_READOBJ_TYPE_CASE(SONAME);
1552 LLVM_READOBJ_TYPE_CASE(STRSZ);
1553 LLVM_READOBJ_TYPE_CASE(STRTAB);
1554 LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
1555 LLVM_READOBJ_TYPE_CASE(SYMENT);
1556 LLVM_READOBJ_TYPE_CASE(SYMTAB);
1557 LLVM_READOBJ_TYPE_CASE(TEXTREL);
1558 LLVM_READOBJ_TYPE_CASE(VERDEF);
1559 LLVM_READOBJ_TYPE_CASE(VERDEFNUM);
1560 LLVM_READOBJ_TYPE_CASE(VERNEED);
1561 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM);
1562 LLVM_READOBJ_TYPE_CASE(VERSYM);
1563 LLVM_READOBJ_TYPE_CASE(RELACOUNT);
1564 LLVM_READOBJ_TYPE_CASE(RELCOUNT);
1565 LLVM_READOBJ_TYPE_CASE(GNU_HASH);
1566 LLVM_READOBJ_TYPE_CASE(TLSDESC_PLT);
1567 LLVM_READOBJ_TYPE_CASE(TLSDESC_GOT);
1568 LLVM_READOBJ_TYPE_CASE(AUXILIARY);
1569 LLVM_READOBJ_TYPE_CASE(FILTER);
1570 default: return "unknown";
1574 #undef LLVM_READOBJ_TYPE_CASE
1576 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
1577 { #enum, prefix##_##enum }
1579 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
1580 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
1581 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
1582 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
1583 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
1584 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
1587 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
1588 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW),
1589 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL),
1590 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP),
1591 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE),
1592 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR),
1593 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST),
1594 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN),
1595 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN),
1596 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT),
1597 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS),
1598 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE),
1599 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB),
1600 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP),
1601 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT),
1602 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE),
1603 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE),
1604 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT),
1605 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF),
1606 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS),
1607 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR),
1608 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED),
1609 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
1610 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
1611 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
1612 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
1615 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
1616 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
1617 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
1618 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
1619 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
1620 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
1621 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
1622 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
1623 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
1624 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
1625 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
1626 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
1627 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
1628 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
1629 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
1630 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
1631 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
1634 #undef LLVM_READOBJ_DT_FLAG_ENT
1636 template <typename T, typename TFlag>
1637 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
1638 using FlagEntry = EnumEntry<TFlag>;
1639 using FlagVector = SmallVector<FlagEntry, 10>;
1640 FlagVector SetFlags;
1642 for (const auto &Flag : Flags) {
1643 if (Flag.Value == 0)
1646 if ((Value & Flag.Value) == Flag.Value)
1647 SetFlags.push_back(Flag);
1650 for (const auto &Flag : SetFlags) {
1651 OS << Flag.Name << " ";
1655 template <class ELFT>
1656 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const {
1657 if (Value >= DynamicStringTable.size())
1658 reportError("Invalid dynamic string table reference");
1659 return StringRef(DynamicStringTable.data() + Value);
1662 static void printLibrary(raw_ostream &OS, const Twine &Tag, const Twine &Name) {
1663 OS << Tag << ": [" << Name << "]";
1666 template <class ELFT>
1667 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) {
1668 raw_ostream &OS = W.getOStream();
1669 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64;
1672 if (Value == DT_REL) {
1675 } else if (Value == DT_RELA) {
1691 case DT_PREINIT_ARRAY:
1698 case DT_MIPS_BASE_ADDRESS:
1699 case DT_MIPS_GOTSYM:
1700 case DT_MIPS_RLD_MAP:
1701 case DT_MIPS_RLD_MAP_REL:
1702 case DT_MIPS_PLTGOT:
1703 case DT_MIPS_OPTIONS:
1704 OS << format(ConvChar, Value);
1710 case DT_MIPS_RLD_VERSION:
1711 case DT_MIPS_LOCAL_GOTNO:
1712 case DT_MIPS_SYMTABNO:
1713 case DT_MIPS_UNREFEXTNO:
1723 case DT_INIT_ARRAYSZ:
1724 case DT_FINI_ARRAYSZ:
1725 case DT_PREINIT_ARRAYSZ:
1726 case DT_ANDROID_RELSZ:
1727 case DT_ANDROID_RELASZ:
1728 OS << Value << " (bytes)";
1731 printLibrary(OS, "Shared library", getDynamicString(Value));
1734 printLibrary(OS, "Library soname", getDynamicString(Value));
1737 printLibrary(OS, "Auxiliary library", getDynamicString(Value));
1740 printLibrary(OS, "Filter library", getDynamicString(Value));
1744 OS << getDynamicString(Value);
1747 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
1750 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
1753 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS);
1756 OS << format(ConvChar, Value);
1761 template<class ELFT>
1762 void ELFDumper<ELFT>::printUnwindInfo() {
1763 W.startLine() << "UnwindInfo not implemented.\n";
1768 template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() {
1769 const unsigned Machine = Obj->getHeader()->e_machine;
1770 if (Machine == EM_ARM) {
1771 ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx(
1772 W, Obj, DotSymtabSec);
1773 return Ctx.PrintUnwindInformation();
1775 W.startLine() << "UnwindInfo not implemented.\n";
1778 } // end anonymous namespace
1780 template<class ELFT>
1781 void ELFDumper<ELFT>::printDynamicTable() {
1782 auto I = dynamic_table().begin();
1783 auto E = dynamic_table().end();
1789 while (I != E && E->getTag() == ELF::DT_NULL)
1791 if (E->getTag() != ELF::DT_NULL)
1795 ptrdiff_t Total = std::distance(I, E);
1799 raw_ostream &OS = W.getOStream();
1800 W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
1802 bool Is64 = ELFT::Is64Bits;
1805 << " Tag" << (Is64 ? " " : " ") << "Type"
1806 << " " << "Name/Value\n";
1808 const Elf_Dyn &Entry = *I;
1809 uintX_t Tag = Entry.getTag();
1811 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " "
1812 << format("%-21s", getTypeString(Obj->getHeader()->e_machine, Tag));
1813 printValue(Tag, Entry.getVal());
1817 W.startLine() << "]\n";
1820 template<class ELFT>
1821 void ELFDumper<ELFT>::printNeededLibraries() {
1822 ListScope D(W, "NeededLibraries");
1824 using LibsTy = std::vector<StringRef>;
1827 for (const auto &Entry : dynamic_table())
1828 if (Entry.d_tag == ELF::DT_NEEDED)
1829 Libs.push_back(getDynamicString(Entry.d_un.d_val));
1831 std::stable_sort(Libs.begin(), Libs.end());
1833 for (const auto &L : Libs) {
1834 outs() << " " << L << "\n";
1839 template <typename ELFT>
1840 void ELFDumper<ELFT>::printHashTable() {
1841 DictScope D(W, "HashTable");
1844 W.printNumber("Num Buckets", HashTable->nbucket);
1845 W.printNumber("Num Chains", HashTable->nchain);
1846 W.printList("Buckets", HashTable->buckets());
1847 W.printList("Chains", HashTable->chains());
1850 template <typename ELFT>
1851 void ELFDumper<ELFT>::printGnuHashTable() {
1852 DictScope D(W, "GnuHashTable");
1855 W.printNumber("Num Buckets", GnuHashTable->nbuckets);
1856 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx);
1857 W.printNumber("Num Mask Words", GnuHashTable->maskwords);
1858 W.printNumber("Shift Count", GnuHashTable->shift2);
1859 W.printHexList("Bloom Filter", GnuHashTable->filter());
1860 W.printList("Buckets", GnuHashTable->buckets());
1861 Elf_Sym_Range Syms = dynamic_symbols();
1862 unsigned NumSyms = std::distance(Syms.begin(), Syms.end());
1864 reportError("No dynamic symbol section");
1865 W.printHexList("Values", GnuHashTable->values(NumSyms));
1868 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() {
1869 outs() << "LoadName: " << SOName << '\n';
1872 template <class ELFT>
1873 void ELFDumper<ELFT>::printAttributes() {
1874 W.startLine() << "Attributes not implemented.\n";
1879 template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() {
1880 if (Obj->getHeader()->e_machine != EM_ARM) {
1881 W.startLine() << "Attributes not implemented.\n";
1885 DictScope BA(W, "BuildAttributes");
1886 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
1887 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES)
1890 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec));
1891 if (Contents[0] != ARMBuildAttrs::Format_Version) {
1892 errs() << "unrecognised FormatVersion: 0x" << utohexstr(Contents[0])
1897 W.printHex("FormatVersion", Contents[0]);
1898 if (Contents.size() == 1)
1901 ARMAttributeParser(&W).Parse(Contents, true);
1905 template <class ELFT> class MipsGOTParser {
1907 TYPEDEF_ELF_TYPES(ELFT)
1908 using GOTEntry = typename ELFO::Elf_Addr;
1910 MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1911 Elf_Dyn_Range DynTable, ScopedPrinter &W);
1913 void parseStaticGOT();
1918 ELFDumper<ELFT> *Dumper;
1921 Optional<uint64_t> DtPltGot;
1922 Optional<uint64_t> DtLocalGotNum;
1923 Optional<uint64_t> DtGotSym;
1924 Optional<uint64_t> DtMipsPltGot;
1925 Optional<uint64_t> DtJmpRel;
1927 std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const;
1928 const GOTEntry *makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum);
1930 void printLocalGOT(const Elf_Shdr *GOTShdr, size_t Num);
1931 void printGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1932 const GOTEntry *It);
1933 void printGlobalGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1934 const GOTEntry *It, const Elf_Sym *Sym,
1935 StringRef StrTable);
1936 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1937 const GOTEntry *It, StringRef Purpose);
1938 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1939 const GOTEntry *It, StringRef StrTable,
1940 const Elf_Sym *Sym);
1943 } // end anonymous namespace
1945 template <class ELFT>
1946 MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1947 Elf_Dyn_Range DynTable, ScopedPrinter &W)
1948 : Dumper(Dumper), Obj(Obj), W(W) {
1949 for (const auto &Entry : DynTable) {
1950 switch (Entry.getTag()) {
1951 case ELF::DT_PLTGOT:
1952 DtPltGot = Entry.getVal();
1954 case ELF::DT_MIPS_LOCAL_GOTNO:
1955 DtLocalGotNum = Entry.getVal();
1957 case ELF::DT_MIPS_GOTSYM:
1958 DtGotSym = Entry.getVal();
1960 case ELF::DT_MIPS_PLTGOT:
1961 DtMipsPltGot = Entry.getVal();
1963 case ELF::DT_JMPREL:
1964 DtJmpRel = Entry.getVal();
1970 template <class ELFT>
1971 void MipsGOTParser<ELFT>::printLocalGOT(const Elf_Shdr *GOTShdr, size_t Num) {
1972 ArrayRef<uint8_t> GOT = unwrapOrError(Obj->getSectionContents(GOTShdr));
1974 const GOTEntry *GotBegin = makeGOTIter(GOT, 0);
1975 const GOTEntry *GotEnd = makeGOTIter(GOT, Num);
1976 const GOTEntry *It = GotBegin;
1978 W.printHex("Canonical gp value", GOTShdr->sh_addr + 0x7ff0);
1980 ListScope RS(W, "Reserved entries");
1983 DictScope D(W, "Entry");
1984 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
1985 W.printString("Purpose", StringRef("Lazy resolver"));
1988 if (It != GotEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) {
1989 DictScope D(W, "Entry");
1990 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
1991 W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
1995 ListScope LS(W, "Local entries");
1996 for (; It != GotEnd; ++It) {
1997 DictScope D(W, "Entry");
1998 printGotEntry(GOTShdr->sh_addr, GotBegin, It);
2003 template <class ELFT> void MipsGOTParser<ELFT>::parseStaticGOT() {
2004 const Elf_Shdr *GOTShdr = findSectionByName(*Obj, ".got");
2006 W.startLine() << "Cannot find .got section.\n";
2010 DictScope GS(W, "Static GOT");
2011 printLocalGOT(GOTShdr, GOTShdr->sh_size / sizeof(GOTEntry));
2014 template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() {
2015 // See "Global Offset Table" in Chapter 5 in the following document
2016 // for detailed GOT description.
2017 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
2019 W.startLine() << "Cannot find PLTGOT dynamic table tag.\n";
2022 if (!DtLocalGotNum) {
2023 W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n";
2027 W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n";
2031 std::size_t DynSymTotal = Dumper->dynamic_symbols().size();
2033 if (*DtGotSym > DynSymTotal)
2034 report_fatal_error("MIPS_GOTSYM exceeds a number of dynamic symbols");
2036 std::size_t GlobalGotNum = DynSymTotal - *DtGotSym;
2038 if (*DtLocalGotNum + GlobalGotNum == 0) {
2039 W.startLine() << "GOT is empty.\n";
2043 const Elf_Shdr *GOTShdr = findNotEmptySectionByAddress(Obj, *DtPltGot);
2045 report_fatal_error("There is no not empty GOT section at 0x" +
2046 Twine::utohexstr(*DtPltGot));
2048 ArrayRef<uint8_t> GOT = unwrapOrError(Obj->getSectionContents(GOTShdr));
2050 if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(GOT))
2051 report_fatal_error("Number of GOT entries exceeds the size of GOT section");
2053 DictScope GS(W, "Primary GOT");
2054 printLocalGOT(GOTShdr, *DtLocalGotNum);
2057 ListScope GS(W, "Global entries");
2059 const GOTEntry *GotBegin = makeGOTIter(GOT, 0);
2060 const GOTEntry *GotEnd = makeGOTIter(GOT, *DtLocalGotNum + GlobalGotNum);
2061 const Elf_Sym *GotDynSym = Dumper->dynamic_symbols().begin() + *DtGotSym;
2062 for (auto It = makeGOTIter(GOT, *DtLocalGotNum); It != GotEnd; ++It) {
2063 DictScope D(W, "Entry");
2064 printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++,
2065 Dumper->getDynamicStringTable());
2069 std::size_t SpecGotNum = getGOTTotal(GOT) - *DtLocalGotNum - GlobalGotNum;
2070 W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum));
2073 template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() {
2074 if (!DtMipsPltGot) {
2075 W.startLine() << "Cannot find MIPS_PLTGOT dynamic table tag.\n";
2079 W.startLine() << "Cannot find JMPREL dynamic table tag.\n";
2083 const Elf_Shdr *PLTShdr = findNotEmptySectionByAddress(Obj, *DtMipsPltGot);
2085 report_fatal_error("There is no not empty PLTGOT section at 0x " +
2086 Twine::utohexstr(*DtMipsPltGot));
2087 ArrayRef<uint8_t> PLT = unwrapOrError(Obj->getSectionContents(PLTShdr));
2089 const Elf_Shdr *PLTRelShdr = findNotEmptySectionByAddress(Obj, *DtJmpRel);
2091 report_fatal_error("There is no not empty RELPLT section at 0x" +
2092 Twine::utohexstr(*DtJmpRel));
2093 const Elf_Shdr *SymTable =
2094 unwrapOrError(Obj->getSection(PLTRelShdr->sh_link));
2095 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTable));
2097 const GOTEntry *PLTBegin = makeGOTIter(PLT, 0);
2098 const GOTEntry *PLTEnd = makeGOTIter(PLT, getGOTTotal(PLT));
2099 const GOTEntry *It = PLTBegin;
2101 DictScope GS(W, "PLT GOT");
2103 ListScope RS(W, "Reserved entries");
2104 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "PLT lazy resolver");
2106 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "Module pointer");
2109 ListScope GS(W, "Entries");
2111 switch (PLTRelShdr->sh_type) {
2113 for (const Elf_Rel &Rel : unwrapOrError(Obj->rels(PLTRelShdr))) {
2114 const Elf_Sym *Sym =
2115 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable));
2116 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym);
2122 for (const Elf_Rela &Rel : unwrapOrError(Obj->relas(PLTRelShdr))) {
2123 const Elf_Sym *Sym =
2124 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable));
2125 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym);
2134 template <class ELFT>
2135 std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const {
2136 return GOT.size() / sizeof(GOTEntry);
2139 template <class ELFT>
2140 const typename MipsGOTParser<ELFT>::GOTEntry *
2141 MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) {
2142 const char *Data = reinterpret_cast<const char *>(GOT.data());
2143 return reinterpret_cast<const GOTEntry *>(Data + EntryNum * sizeof(GOTEntry));
2146 template <class ELFT>
2147 void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr,
2148 const GOTEntry *BeginIt,
2149 const GOTEntry *It) {
2150 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2151 W.printHex("Address", GotAddr + Offset);
2152 W.printNumber("Access", Offset - 0x7ff0);
2153 W.printHex("Initial", *It);
2156 template <class ELFT>
2157 void MipsGOTParser<ELFT>::printGlobalGotEntry(uint64_t GotAddr,
2158 const GOTEntry *BeginIt,
2161 StringRef StrTable) {
2162 printGotEntry(GotAddr, BeginIt, It);
2164 W.printHex("Value", Sym->st_value);
2165 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
2167 unsigned SectionIndex = 0;
2168 StringRef SectionName;
2169 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(),
2170 Dumper->getShndxTable(), SectionName, SectionIndex);
2171 W.printHex("Section", SectionName, SectionIndex);
2173 std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true);
2174 W.printNumber("Name", FullSymbolName, Sym->st_name);
2177 template <class ELFT>
2178 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
2179 const GOTEntry *BeginIt,
2180 const GOTEntry *It, StringRef Purpose) {
2181 DictScope D(W, "Entry");
2182 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2183 W.printHex("Address", PLTAddr + Offset);
2184 W.printHex("Initial", *It);
2185 W.printString("Purpose", Purpose);
2188 template <class ELFT>
2189 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
2190 const GOTEntry *BeginIt,
2191 const GOTEntry *It, StringRef StrTable,
2192 const Elf_Sym *Sym) {
2193 DictScope D(W, "Entry");
2194 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2195 W.printHex("Address", PLTAddr + Offset);
2196 W.printHex("Initial", *It);
2197 W.printHex("Value", Sym->st_value);
2198 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
2200 unsigned SectionIndex = 0;
2201 StringRef SectionName;
2202 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(),
2203 Dumper->getShndxTable(), SectionName, SectionIndex);
2204 W.printHex("Section", SectionName, SectionIndex);
2206 std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true);
2207 W.printNumber("Name", FullSymbolName, Sym->st_name);
2210 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
2211 if (Obj->getHeader()->e_machine != EM_MIPS) {
2212 W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n";
2216 MipsGOTParser<ELFT> GOTParser(this, Obj, dynamic_table(), W);
2217 if (dynamic_table().empty())
2218 GOTParser.parseStaticGOT();
2220 GOTParser.parseGOT();
2221 GOTParser.parsePLT();
2225 static const EnumEntry<unsigned> ElfMipsISAExtType[] = {
2226 {"None", Mips::AFL_EXT_NONE},
2227 {"Broadcom SB-1", Mips::AFL_EXT_SB1},
2228 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON},
2229 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2},
2230 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP},
2231 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3},
2232 {"LSI R4010", Mips::AFL_EXT_4010},
2233 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E},
2234 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F},
2235 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A},
2236 {"MIPS R4650", Mips::AFL_EXT_4650},
2237 {"MIPS R5900", Mips::AFL_EXT_5900},
2238 {"MIPS R10000", Mips::AFL_EXT_10000},
2239 {"NEC VR4100", Mips::AFL_EXT_4100},
2240 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111},
2241 {"NEC VR4120", Mips::AFL_EXT_4120},
2242 {"NEC VR5400", Mips::AFL_EXT_5400},
2243 {"NEC VR5500", Mips::AFL_EXT_5500},
2244 {"RMI Xlr", Mips::AFL_EXT_XLR},
2245 {"Toshiba R3900", Mips::AFL_EXT_3900}
2248 static const EnumEntry<unsigned> ElfMipsASEFlags[] = {
2249 {"DSP", Mips::AFL_ASE_DSP},
2250 {"DSPR2", Mips::AFL_ASE_DSPR2},
2251 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA},
2252 {"MCU", Mips::AFL_ASE_MCU},
2253 {"MDMX", Mips::AFL_ASE_MDMX},
2254 {"MIPS-3D", Mips::AFL_ASE_MIPS3D},
2255 {"MT", Mips::AFL_ASE_MT},
2256 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS},
2257 {"VZ", Mips::AFL_ASE_VIRT},
2258 {"MSA", Mips::AFL_ASE_MSA},
2259 {"MIPS16", Mips::AFL_ASE_MIPS16},
2260 {"microMIPS", Mips::AFL_ASE_MICROMIPS},
2261 {"XPA", Mips::AFL_ASE_XPA}
2264 static const EnumEntry<unsigned> ElfMipsFpABIType[] = {
2265 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY},
2266 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE},
2267 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE},
2268 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT},
2269 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)",
2270 Mips::Val_GNU_MIPS_ABI_FP_OLD_64},
2271 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX},
2272 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64},
2273 {"Hard float compat (32-bit CPU, 64-bit FPU)",
2274 Mips::Val_GNU_MIPS_ABI_FP_64A}
2277 static const EnumEntry<unsigned> ElfMipsFlags1[] {
2278 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG},
2281 static int getMipsRegisterSize(uint8_t Flag) {
2283 case Mips::AFL_REG_NONE:
2285 case Mips::AFL_REG_32:
2287 case Mips::AFL_REG_64:
2289 case Mips::AFL_REG_128:
2296 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() {
2297 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags");
2299 W.startLine() << "There is no .MIPS.abiflags section in the file.\n";
2302 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2303 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) {
2304 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n";
2308 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data());
2310 raw_ostream &OS = W.getOStream();
2311 DictScope GS(W, "MIPS ABI Flags");
2313 W.printNumber("Version", Flags->version);
2314 W.startLine() << "ISA: ";
2315 if (Flags->isa_rev <= 1)
2316 OS << format("MIPS%u", Flags->isa_level);
2318 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev);
2320 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType));
2321 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags));
2322 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType));
2323 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size));
2324 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size));
2325 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size));
2326 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1));
2327 W.printHex("Flags 2", Flags->flags2);
2330 template <class ELFT>
2331 static void printMipsReginfoData(ScopedPrinter &W,
2332 const Elf_Mips_RegInfo<ELFT> &Reginfo) {
2333 W.printHex("GP", Reginfo.ri_gp_value);
2334 W.printHex("General Mask", Reginfo.ri_gprmask);
2335 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]);
2336 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]);
2337 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]);
2338 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]);
2341 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() {
2342 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo");
2344 W.startLine() << "There is no .reginfo section in the file.\n";
2347 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2348 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) {
2349 W.startLine() << "The .reginfo section has a wrong size.\n";
2353 DictScope GS(W, "MIPS RegInfo");
2354 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data());
2355 printMipsReginfoData(W, *Reginfo);
2358 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() {
2359 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options");
2361 W.startLine() << "There is no .MIPS.options section in the file.\n";
2365 DictScope GS(W, "MIPS Options");
2367 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2368 while (!Sec.empty()) {
2369 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) {
2370 W.startLine() << "The .MIPS.options section has a wrong size.\n";
2373 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data());
2374 DictScope GS(W, getElfMipsOptionsOdkType(O->kind));
2377 printMipsReginfoData(W, O->getRegInfo());
2380 W.startLine() << "Unsupported MIPS options tag.\n";
2383 Sec = Sec.slice(O->size);
2387 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const {
2388 const Elf_Shdr *StackMapSection = nullptr;
2389 for (const auto &Sec : unwrapOrError(Obj->sections())) {
2390 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2391 if (Name == ".llvm_stackmaps") {
2392 StackMapSection = &Sec;
2397 if (!StackMapSection)
2400 ArrayRef<uint8_t> StackMapContentsArray =
2401 unwrapOrError(Obj->getSectionContents(StackMapSection));
2403 prettyPrintStackMap(outs(), StackMapV2Parser<ELFT::TargetEndianness>(
2404 StackMapContentsArray));
2407 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() {
2408 ELFDumperStyle->printGroupSections(Obj);
2411 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1,
2415 OS.PadToColumn(37u);
2420 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
2421 const Elf_Ehdr *e = Obj->getHeader();
2422 OS << "ELF Header:\n";
2425 for (int i = 0; i < ELF::EI_NIDENT; i++)
2426 OS << format(" %02x", static_cast<int>(e->e_ident[i]));
2428 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
2429 printFields(OS, "Class:", Str);
2430 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding));
2431 printFields(OS, "Data:", Str);
2434 OS.PadToColumn(37u);
2435 OS << to_hexString(e->e_ident[ELF::EI_VERSION]);
2436 if (e->e_version == ELF::EV_CURRENT)
2439 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI));
2440 printFields(OS, "OS/ABI:", Str);
2441 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]);
2442 printFields(OS, "ABI Version:", Str);
2443 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType));
2444 printFields(OS, "Type:", Str);
2445 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType));
2446 printFields(OS, "Machine:", Str);
2447 Str = "0x" + to_hexString(e->e_version);
2448 printFields(OS, "Version:", Str);
2449 Str = "0x" + to_hexString(e->e_entry);
2450 printFields(OS, "Entry point address:", Str);
2451 Str = to_string(e->e_phoff) + " (bytes into file)";
2452 printFields(OS, "Start of program headers:", Str);
2453 Str = to_string(e->e_shoff) + " (bytes into file)";
2454 printFields(OS, "Start of section headers:", Str);
2455 Str = "0x" + to_hexString(e->e_flags);
2456 printFields(OS, "Flags:", Str);
2457 Str = to_string(e->e_ehsize) + " (bytes)";
2458 printFields(OS, "Size of this header:", Str);
2459 Str = to_string(e->e_phentsize) + " (bytes)";
2460 printFields(OS, "Size of program headers:", Str);
2461 Str = to_string(e->e_phnum);
2462 printFields(OS, "Number of program headers:", Str);
2463 Str = to_string(e->e_shentsize) + " (bytes)";
2464 printFields(OS, "Size of section headers:", Str);
2465 Str = to_string(e->e_shnum);
2466 printFields(OS, "Number of section headers:", Str);
2467 Str = to_string(e->e_shstrndx);
2468 printFields(OS, "Section header string table index:", Str);
2472 struct GroupMember {
2477 struct GroupSection {
2479 StringRef Signature;
2483 std::vector<GroupMember> Members;
2486 template <class ELFT>
2487 std::vector<GroupSection> getGroups(const ELFFile<ELFT> *Obj) {
2488 using Elf_Shdr = typename ELFFile<ELFT>::Elf_Shdr;
2489 using Elf_Sym = typename ELFFile<ELFT>::Elf_Sym;
2490 using Elf_Word = typename ELFFile<ELFT>::Elf_Word;
2492 std::vector<GroupSection> Ret;
2494 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2496 if (Sec.sh_type != ELF::SHT_GROUP)
2499 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
2500 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
2501 const Elf_Sym *Sym =
2502 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info));
2504 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
2506 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2507 StringRef Signature = StrTable.data() + Sym->st_name;
2508 Ret.push_back({Name, Signature, Sec.sh_name, I - 1, Data[0], {}});
2510 std::vector<GroupMember> &GM = Ret.back().Members;
2511 for (uint32_t Ndx : Data.slice(1)) {
2512 auto Sec = unwrapOrError(Obj->getSection(Ndx));
2513 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
2514 GM.push_back({Name, Ndx});
2520 DenseMap<uint64_t, const GroupSection *>
2521 mapSectionsToGroups(ArrayRef<GroupSection> Groups) {
2522 DenseMap<uint64_t, const GroupSection *> Ret;
2523 for (const GroupSection &G : Groups)
2524 for (const GroupMember &GM : G.Members)
2525 Ret.insert({GM.Index, &G});
2531 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) {
2532 std::vector<GroupSection> V = getGroups<ELFT>(Obj);
2533 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V);
2534 for (const GroupSection &G : V) {
2536 << getGroupType(G.Type) << " group section ["
2537 << format_decimal(G.Index, 5) << "] `" << G.Name << "' [" << G.Signature
2538 << "] contains " << G.Members.size() << " sections:\n"
2539 << " [Index] Name\n";
2540 for (const GroupMember &GM : G.Members) {
2541 const GroupSection *MainGroup = Map[GM.Index];
2542 if (MainGroup != &G) {
2544 errs() << "Error: section [" << format_decimal(GM.Index, 5)
2545 << "] in group section [" << format_decimal(G.Index, 5)
2546 << "] already in group section ["
2547 << format_decimal(MainGroup->Index, 5) << "]";
2551 OS << " [" << format_decimal(GM.Index, 5) << "] " << GM.Name << "\n";
2556 OS << "There are no section groups in this file.\n";
2559 template <class ELFT>
2560 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
2561 const Elf_Rela &R, bool IsRela) {
2562 std::string Offset, Info, Addend, Value;
2563 SmallString<32> RelocName;
2564 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
2565 StringRef TargetName;
2566 const Elf_Sym *Sym = nullptr;
2567 unsigned Width = ELFT::Is64Bits ? 16 : 8;
2568 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2570 // First two fields are bit width dependent. The rest of them are after are
2572 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
2573 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
2574 Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab));
2575 if (Sym && Sym->getType() == ELF::STT_SECTION) {
2576 const Elf_Shdr *Sec = unwrapOrError(
2577 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
2578 TargetName = unwrapOrError(Obj->getSectionName(Sec));
2580 TargetName = unwrapOrError(Sym->getName(StrTable));
2583 if (Sym && IsRela) {
2590 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
2591 Info = to_string(format_hex_no_prefix(R.r_info, Width));
2593 int64_t RelAddend = R.r_addend;
2595 Addend += to_hexString(std::abs(RelAddend), false);
2598 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
2600 Fields[0].Str = Offset;
2601 Fields[1].Str = Info;
2602 Fields[2].Str = RelocName;
2603 Fields[3].Str = Value;
2604 Fields[4].Str = TargetName;
2605 for (auto &field : Fields)
2611 static inline void printRelocHeader(raw_ostream &OS, bool Is64, bool IsRela) {
2613 OS << " Offset Info Type"
2614 << " Symbol's Value Symbol's Name";
2616 OS << " Offset Info Type Sym. Value "
2619 OS << (IsRela ? " + Addend" : "");
2623 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) {
2624 bool HasRelocSections = false;
2625 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2626 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA &&
2627 Sec.sh_type != ELF::SHT_ANDROID_REL &&
2628 Sec.sh_type != ELF::SHT_ANDROID_RELA)
2630 HasRelocSections = true;
2631 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2632 unsigned Entries = Sec.getEntityCount();
2633 uintX_t Offset = Sec.sh_offset;
2634 OS << "\nRelocation section '" << Name << "' at offset 0x"
2635 << to_hexString(Offset, false) << " contains " << Entries
2637 printRelocHeader(OS, ELFT::Is64Bits,
2638 Sec.sh_type == ELF::SHT_RELA ||
2639 Sec.sh_type == ELF::SHT_ANDROID_RELA);
2640 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link));
2641 switch (Sec.sh_type) {
2643 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) {
2645 Rela.r_offset = R.r_offset;
2646 Rela.r_info = R.r_info;
2648 printRelocation(Obj, SymTab, Rela, false);
2652 for (const auto &R : unwrapOrError(Obj->relas(&Sec)))
2653 printRelocation(Obj, SymTab, R, true);
2655 case ELF::SHT_ANDROID_REL:
2656 case ELF::SHT_ANDROID_RELA:
2657 for (const auto &R : unwrapOrError(Obj->android_relas(&Sec)))
2658 printRelocation(Obj, SymTab, R, Sec.sh_type == ELF::SHT_ANDROID_RELA);
2662 if (!HasRelocSections)
2663 OS << "\nThere are no relocations in this file.\n";
2666 std::string getSectionTypeString(unsigned Arch, unsigned Type) {
2667 using namespace ELF;
2674 case SHT_ARM_PREEMPTMAP:
2675 return "ARM_PREEMPTMAP";
2676 case SHT_ARM_ATTRIBUTES:
2677 return "ARM_ATTRIBUTES";
2678 case SHT_ARM_DEBUGOVERLAY:
2679 return "ARM_DEBUGOVERLAY";
2680 case SHT_ARM_OVERLAYSECTION:
2681 return "ARM_OVERLAYSECTION";
2685 case SHT_X86_64_UNWIND:
2686 return "X86_64_UNWIND";
2689 case EM_MIPS_RS3_LE:
2691 case SHT_MIPS_REGINFO:
2692 return "MIPS_REGINFO";
2693 case SHT_MIPS_OPTIONS:
2694 return "MIPS_OPTIONS";
2695 case SHT_MIPS_ABIFLAGS:
2696 return "MIPS_ABIFLAGS";
2697 case SHT_MIPS_DWARF:
2698 return "SHT_MIPS_DWARF";
2726 case SHT_INIT_ARRAY:
2727 return "INIT_ARRAY";
2728 case SHT_FINI_ARRAY:
2729 return "FINI_ARRAY";
2730 case SHT_PREINIT_ARRAY:
2731 return "PREINIT_ARRAY";
2734 case SHT_SYMTAB_SHNDX:
2735 return "SYMTAB SECTION INDICES";
2736 case SHT_LLVM_ODRTAB:
2737 return "LLVM_ODRTAB";
2738 // FIXME: Parse processor specific GNU attributes
2739 case SHT_GNU_ATTRIBUTES:
2740 return "ATTRIBUTES";
2743 case SHT_GNU_verdef:
2745 case SHT_GNU_verneed:
2747 case SHT_GNU_versym:
2755 template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) {
2756 size_t SectionIndex = 0;
2757 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize,
2762 if (ELFT::Is64Bits) {
2769 OS << "There are " << to_string(Obj->getHeader()->e_shnum)
2770 << " section headers, starting at offset "
2771 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n";
2772 OS << "Section Headers:\n";
2773 Field Fields[11] = {{"[Nr]", 2},
2778 {"Size", 65 - Bias},
2784 for (auto &f : Fields)
2788 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2789 Number = to_string(SectionIndex);
2790 Fields[0].Str = Number;
2791 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec));
2792 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type);
2793 Fields[2].Str = Type;
2794 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width));
2795 Fields[3].Str = Address;
2796 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6));
2797 Fields[4].Str = Offset;
2798 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6));
2799 Fields[5].Str = Size;
2800 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2));
2801 Fields[6].Str = EntrySize;
2802 Flags = getGNUFlags(Sec.sh_flags);
2803 Fields[7].Str = Flags;
2804 Link = to_string(Sec.sh_link);
2805 Fields[8].Str = Link;
2806 Info = to_string(Sec.sh_info);
2807 Fields[9].Str = Info;
2808 Alignment = to_string(Sec.sh_addralign);
2809 Fields[10].Str = Alignment;
2810 OS.PadToColumn(Fields[0].Column);
2811 OS << "[" << right_justify(Fields[0].Str, 2) << "]";
2812 for (int i = 1; i < 7; i++)
2813 printField(Fields[i]);
2814 OS.PadToColumn(Fields[7].Column);
2815 OS << right_justify(Fields[7].Str, 3);
2816 OS.PadToColumn(Fields[8].Column);
2817 OS << right_justify(Fields[8].Str, 2);
2818 OS.PadToColumn(Fields[9].Column);
2819 OS << right_justify(Fields[9].Str, 3);
2820 OS.PadToColumn(Fields[10].Column);
2821 OS << right_justify(Fields[10].Str, 2);
2825 OS << "Key to Flags:\n"
2826 << " W (write), A (alloc), X (execute), M (merge), S (strings), l "
2828 << " I (info), L (link order), G (group), T (TLS), E (exclude),\
2830 << " O (extra OS processing required) o (OS specific),\
2831 p (processor specific)\n";
2834 template <class ELFT>
2835 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name,
2838 OS << "\nSymbol table '" << Name << "' contains " << Entries
2841 OS << "\n Symbol table for image:\n";
2844 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2846 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2849 template <class ELFT>
2850 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj,
2851 const Elf_Sym *Symbol,
2852 const Elf_Sym *FirstSym) {
2853 unsigned SectionIndex = Symbol->st_shndx;
2854 switch (SectionIndex) {
2855 case ELF::SHN_UNDEF:
2859 case ELF::SHN_COMMON:
2861 case ELF::SHN_XINDEX:
2862 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>(
2863 Symbol, FirstSym, this->dumper()->getShndxTable()));
2867 // Processor specific
2868 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC)
2869 return std::string("PRC[0x") +
2870 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2872 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS)
2873 return std::string("OS[0x") +
2874 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2875 // Architecture reserved:
2876 if (SectionIndex >= ELF::SHN_LORESERVE &&
2877 SectionIndex <= ELF::SHN_HIRESERVE)
2878 return std::string("RSV[0x") +
2879 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2880 // A normal section with an index
2881 return to_string(format_decimal(SectionIndex, 3));
2885 template <class ELFT>
2886 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
2887 const Elf_Sym *FirstSym, StringRef StrTable,
2890 static bool Dynamic = true;
2893 // If this function was called with a different value from IsDynamic
2894 // from last call, happens when we move from dynamic to static symbol
2895 // table, "Num" field should be reset.
2896 if (!Dynamic != !IsDynamic) {
2900 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section;
2902 if (ELFT::Is64Bits) {
2909 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias,
2910 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias};
2911 Num = to_string(format_decimal(Idx++, 6)) + ":";
2912 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width));
2913 Size = to_string(format_decimal(Symbol->st_size, 5));
2914 unsigned char SymbolType = Symbol->getType();
2915 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
2916 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
2917 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
2919 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
2920 unsigned Vis = Symbol->getVisibility();
2921 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
2922 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities));
2923 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym);
2924 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
2925 Fields[0].Str = Num;
2926 Fields[1].Str = Value;
2927 Fields[2].Str = Size;
2928 Fields[3].Str = Type;
2929 Fields[4].Str = Binding;
2930 Fields[5].Str = Visibility;
2931 Fields[6].Str = Section;
2932 Fields[7].Str = Name;
2933 for (auto &Entry : Fields)
2937 template <class ELFT>
2938 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym,
2939 uint32_t Sym, StringRef StrTable,
2941 std::string Num, Buc, Name, Value, Size, Binding, Type, Visibility, Section;
2942 unsigned Width, Bias = 0;
2943 if (ELFT::Is64Bits) {
2950 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias,
2951 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias};
2952 Num = to_string(format_decimal(Sym, 5));
2953 Buc = to_string(format_decimal(Bucket, 3)) + ":";
2955 const auto Symbol = FirstSym + Sym;
2956 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width));
2957 Size = to_string(format_decimal(Symbol->st_size, 5));
2958 unsigned char SymbolType = Symbol->getType();
2959 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
2960 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
2961 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
2963 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
2964 unsigned Vis = Symbol->getVisibility();
2965 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
2966 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities));
2967 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym);
2968 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, true);
2969 Fields[0].Str = Num;
2970 Fields[1].Str = Buc;
2971 Fields[2].Str = Value;
2972 Fields[3].Str = Size;
2973 Fields[4].Str = Type;
2974 Fields[5].Str = Binding;
2975 Fields[6].Str = Visibility;
2976 Fields[7].Str = Section;
2977 Fields[8].Str = Name;
2978 for (auto &Entry : Fields)
2983 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) {
2984 if (opts::DynamicSymbols)
2986 this->dumper()->printSymbolsHelper(true);
2987 this->dumper()->printSymbolsHelper(false);
2990 template <class ELFT>
2991 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
2992 if (this->dumper()->getDynamicStringTable().empty())
2994 auto StringTable = this->dumper()->getDynamicStringTable();
2995 auto DynSyms = this->dumper()->dynamic_symbols();
2996 auto GnuHash = this->dumper()->getGnuHashTable();
2997 auto SysVHash = this->dumper()->getHashTable();
2999 // If no hash or .gnu.hash found, try using symbol table
3000 if (GnuHash == nullptr && SysVHash == nullptr)
3001 this->dumper()->printSymbolsHelper(true);
3003 // Try printing .hash
3004 if (this->dumper()->getHashTable()) {
3005 OS << "\n Symbol table of .hash for image:\n";
3007 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3009 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3012 uint32_t NBuckets = SysVHash->nbucket;
3013 uint32_t NChains = SysVHash->nchain;
3014 auto Buckets = SysVHash->buckets();
3015 auto Chains = SysVHash->chains();
3016 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) {
3017 if (Buckets[Buc] == ELF::STN_UNDEF)
3019 for (uint32_t Ch = Buckets[Buc]; Ch < NChains; Ch = Chains[Ch]) {
3020 if (Ch == ELF::STN_UNDEF)
3022 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc);
3027 // Try printing .gnu.hash
3029 OS << "\n Symbol table of .gnu.hash for image:\n";
3031 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3033 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3035 uint32_t NBuckets = GnuHash->nbuckets;
3036 auto Buckets = GnuHash->buckets();
3037 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) {
3038 if (Buckets[Buc] == ELF::STN_UNDEF)
3040 uint32_t Index = Buckets[Buc];
3041 uint32_t GnuHashable = Index - GnuHash->symndx;
3042 // Print whole chain
3044 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc);
3045 // Chain ends at symbol with stopper bit
3046 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1)
3053 static inline std::string printPhdrFlags(unsigned Flag) {
3055 Str = (Flag & PF_R) ? "R" : " ";
3056 Str += (Flag & PF_W) ? "W" : " ";
3057 Str += (Flag & PF_X) ? "E" : " ";
3061 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO
3062 // PT_TLS must only have SHF_TLS sections
3063 template <class ELFT>
3064 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr,
3065 const Elf_Shdr &Sec) {
3066 return (((Sec.sh_flags & ELF::SHF_TLS) &&
3067 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) ||
3068 (Phdr.p_type == ELF::PT_GNU_RELRO))) ||
3069 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS));
3072 // Non-SHT_NOBITS must have its offset inside the segment
3073 // Only non-zero section can be at end of segment
3074 template <class ELFT>
3075 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3076 if (Sec.sh_type == ELF::SHT_NOBITS)
3079 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
3080 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
3082 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
3083 if (Sec.sh_offset >= Phdr.p_offset)
3084 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset)
3085 /*only non-zero sized sections at end*/ &&
3086 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz));
3090 // SHF_ALLOC must have VMA inside segment
3091 // Only non-zero section can be at end of segment
3092 template <class ELFT>
3093 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3094 if (!(Sec.sh_flags & ELF::SHF_ALLOC))
3097 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
3098 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
3100 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
3101 if (Sec.sh_addr >= Phdr.p_vaddr)
3102 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) &&
3103 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz));
3107 // No section with zero size must be at start or end of PT_DYNAMIC
3108 template <class ELFT>
3109 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3110 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0)
3112 // Is section within the phdr both based on offset and VMA ?
3113 return ((Sec.sh_type == ELF::SHT_NOBITS) ||
3114 (Sec.sh_offset > Phdr.p_offset &&
3115 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) &&
3116 (!(Sec.sh_flags & ELF::SHF_ALLOC) ||
3117 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz));
3120 template <class ELFT>
3121 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
3122 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3123 unsigned Width = ELFT::Is64Bits ? 18 : 10;
3124 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7;
3125 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align;
3127 const Elf_Ehdr *Header = Obj->getHeader();
3128 Field Fields[8] = {2, 17, 26, 37 + Bias,
3129 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias};
3130 OS << "\nElf file type is "
3131 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n"
3132 << "Entry point " << format_hex(Header->e_entry, 3) << "\n"
3133 << "There are " << Header->e_phnum << " program headers,"
3134 << " starting at offset " << Header->e_phoff << "\n\n"
3135 << "Program Headers:\n";
3137 OS << " Type Offset VirtAddr PhysAddr "
3138 << " FileSiz MemSiz Flg Align\n";
3140 OS << " Type Offset VirtAddr PhysAddr FileSiz "
3141 << "MemSiz Flg Align\n";
3142 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) {
3143 Type = getElfPtType(Header->e_machine, Phdr.p_type);
3144 Offset = to_string(format_hex(Phdr.p_offset, 8));
3145 VMA = to_string(format_hex(Phdr.p_vaddr, Width));
3146 LMA = to_string(format_hex(Phdr.p_paddr, Width));
3147 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth));
3148 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth));
3149 Flag = printPhdrFlags(Phdr.p_flags);
3150 Align = to_string(format_hex(Phdr.p_align, 1));
3151 Fields[0].Str = Type;
3152 Fields[1].Str = Offset;
3153 Fields[2].Str = VMA;
3154 Fields[3].Str = LMA;
3155 Fields[4].Str = FileSz;
3156 Fields[5].Str = MemSz;
3157 Fields[6].Str = Flag;
3158 Fields[7].Str = Align;
3159 for (auto Field : Fields)
3161 if (Phdr.p_type == ELF::PT_INTERP) {
3162 OS << "\n [Requesting program interpreter: ";
3163 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]";
3167 OS << "\n Section to Segment mapping:\n Segment Sections...\n";
3169 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
3170 std::string Sections;
3171 OS << format(" %2.2d ", Phnum++);
3172 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3173 // Check if each section is in a segment and then print mapping.
3174 // readelf additionally makes sure it does not print zero sized sections
3175 // at end of segments and for PT_DYNAMIC both start and end of section
3176 // .tbss must only be shown in PT_TLS section.
3177 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) &&
3178 ((Sec.sh_flags & ELF::SHF_TLS) != 0) &&
3179 Phdr.p_type != ELF::PT_TLS;
3180 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) &&
3181 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) &&
3182 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL))
3183 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " ";
3185 OS << Sections << "\n";
3190 template <class ELFT>
3191 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R,
3193 SmallString<32> RelocName;
3194 StringRef SymbolName;
3195 unsigned Width = ELFT::Is64Bits ? 16 : 8;
3196 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3197 // First two fields are bit width dependent. The rest of them are after are
3199 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
3201 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL());
3202 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
3203 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
3205 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
3206 std::string Addend, Info, Offset, Value;
3207 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
3208 Info = to_string(format_hex_no_prefix(R.r_info, Width));
3209 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
3210 int64_t RelAddend = R.r_addend;
3211 if (!SymbolName.empty() && IsRela) {
3218 if (SymbolName.empty() && Sym->getValue() == 0)
3222 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1));
3225 Fields[0].Str = Offset;
3226 Fields[1].Str = Info;
3227 Fields[2].Str = RelocName.c_str();
3228 Fields[3].Str = Value;
3229 Fields[4].Str = SymbolName;
3230 for (auto &Field : Fields)
3236 template <class ELFT>
3237 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3238 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3239 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3240 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3241 if (DynRelaRegion.Size > 0) {
3242 OS << "\n'RELA' relocation section at offset "
3243 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) -
3245 1) << " contains " << DynRelaRegion.Size << " bytes:\n";
3246 printRelocHeader(OS, ELFT::Is64Bits, true);
3247 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3248 printDynamicRelocation(Obj, Rela, true);
3250 if (DynRelRegion.Size > 0) {
3251 OS << "\n'REL' relocation section at offset "
3252 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) -
3254 1) << " contains " << DynRelRegion.Size << " bytes:\n";
3255 printRelocHeader(OS, ELFT::Is64Bits, false);
3256 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3258 Rela.r_offset = Rel.r_offset;
3259 Rela.r_info = Rel.r_info;
3261 printDynamicRelocation(Obj, Rela, false);
3264 if (DynPLTRelRegion.Size) {
3265 OS << "\n'PLT' relocation section at offset "
3266 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) -
3268 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n";
3270 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) {
3271 printRelocHeader(OS, ELFT::Is64Bits, true);
3272 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
3273 printDynamicRelocation(Obj, Rela, true);
3275 printRelocHeader(OS, ELFT::Is64Bits, false);
3276 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
3278 Rela.r_offset = Rel.r_offset;
3279 Rela.r_info = Rel.r_info;
3281 printDynamicRelocation(Obj, Rela, false);
3286 // Hash histogram shows statistics of how efficient the hash was for the
3287 // dynamic symbol table. The table shows number of hash buckets for different
3288 // lengths of chains as absolute number and percentage of the total buckets.
3289 // Additionally cumulative coverage of symbols for each set of buckets.
3290 template <class ELFT>
3291 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
3293 const Elf_Hash *HashTable = this->dumper()->getHashTable();
3294 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable();
3296 // Print histogram for .hash section
3298 size_t NBucket = HashTable->nbucket;
3299 size_t NChain = HashTable->nchain;
3300 ArrayRef<Elf_Word> Buckets = HashTable->buckets();
3301 ArrayRef<Elf_Word> Chains = HashTable->chains();
3302 size_t TotalSyms = 0;
3303 // If hash table is correct, we have at least chains with 0 length
3304 size_t MaxChain = 1;
3305 size_t CumulativeNonZero = 0;
3307 if (NChain == 0 || NBucket == 0)
3310 std::vector<size_t> ChainLen(NBucket, 0);
3311 // Go over all buckets and and note chain lengths of each bucket (total
3312 // unique chain lengths).
3313 for (size_t B = 0; B < NBucket; B++) {
3314 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C])
3315 if (MaxChain <= ++ChainLen[B])
3317 TotalSyms += ChainLen[B];
3323 std::vector<size_t> Count(MaxChain, 0) ;
3324 // Count how long is the chain for each bucket
3325 for (size_t B = 0; B < NBucket; B++)
3326 ++Count[ChainLen[B]];
3327 // Print Number of buckets with each chain lengths and their cumulative
3328 // coverage of the symbols
3329 OS << "Histogram for bucket list length (total of " << NBucket
3331 << " Length Number % of total Coverage\n";
3332 for (size_t I = 0; I < MaxChain; I++) {
3333 CumulativeNonZero += Count[I] * I;
3334 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3335 (Count[I] * 100.0) / NBucket,
3336 (CumulativeNonZero * 100.0) / TotalSyms);
3340 // Print histogram for .gnu.hash section
3342 size_t NBucket = GnuHashTable->nbuckets;
3343 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets();
3344 unsigned NumSyms = this->dumper()->dynamic_symbols().size();
3347 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms);
3348 size_t Symndx = GnuHashTable->symndx;
3349 size_t TotalSyms = 0;
3350 size_t MaxChain = 1;
3351 size_t CumulativeNonZero = 0;
3353 if (Chains.empty() || NBucket == 0)
3356 std::vector<size_t> ChainLen(NBucket, 0);
3358 for (size_t B = 0; B < NBucket; B++) {
3362 for (size_t C = Buckets[B] - Symndx;
3363 C < Chains.size() && (Chains[C] & 1) == 0; C++)
3364 if (MaxChain < ++Len)
3374 std::vector<size_t> Count(MaxChain, 0) ;
3375 for (size_t B = 0; B < NBucket; B++)
3376 ++Count[ChainLen[B]];
3377 // Print Number of buckets with each chain lengths and their cumulative
3378 // coverage of the symbols
3379 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket
3381 << " Length Number % of total Coverage\n";
3382 for (size_t I = 0; I <MaxChain; I++) {
3383 CumulativeNonZero += Count[I] * I;
3384 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3385 (Count[I] * 100.0) / NBucket,
3386 (CumulativeNonZero * 100.0) / TotalSyms);
3391 static std::string getGNUNoteTypeName(const uint32_t NT) {
3392 static const struct {
3396 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"},
3397 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"},
3398 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"},
3399 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"},
3402 for (const auto &Note : Notes)
3404 return std::string(Note.Name);
3407 raw_string_ostream OS(string);
3408 OS << format("Unknown note type (0x%08x)", NT);
3412 static std::string getFreeBSDNoteTypeName(const uint32_t NT) {
3413 static const struct {
3417 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"},
3418 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"},
3419 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"},
3420 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"},
3421 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"},
3422 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"},
3423 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"},
3424 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"},
3425 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS,
3426 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"},
3427 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"},
3430 for (const auto &Note : Notes)
3432 return std::string(Note.Name);
3435 raw_string_ostream OS(string);
3436 OS << format("Unknown note type (0x%08x)", NT);
3440 static std::string getAMDGPUNoteTypeName(const uint32_t NT) {
3441 static const struct {
3445 {ELF::NT_AMD_AMDGPU_HSA_METADATA,
3446 "NT_AMD_AMDGPU_HSA_METADATA (HSA Metadata)"},
3447 {ELF::NT_AMD_AMDGPU_ISA,
3448 "NT_AMD_AMDGPU_ISA (ISA Version)"},
3449 {ELF::NT_AMD_AMDGPU_PAL_METADATA,
3450 "NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)"}
3453 for (const auto &Note : Notes)
3455 return std::string(Note.Name);
3458 raw_string_ostream OS(string);
3459 OS << format("Unknown note type (0x%08x)", NT);
3463 template <typename ELFT>
3464 static void printGNUNote(raw_ostream &OS, uint32_t NoteType,
3465 ArrayRef<typename ELFFile<ELFT>::Elf_Word> Words,
3470 case ELF::NT_GNU_ABI_TAG: {
3471 static const char *OSNames[] = {
3472 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl",
3475 StringRef OSName = "Unknown";
3476 if (Words[0] < array_lengthof(OSNames))
3477 OSName = OSNames[Words[0]];
3478 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3];
3480 if (Words.size() < 4)
3481 OS << " <corrupt GNU_ABI_TAG>";
3483 OS << " OS: " << OSName << ", ABI: " << Major << "." << Minor << "."
3487 case ELF::NT_GNU_BUILD_ID: {
3488 OS << " Build ID: ";
3489 ArrayRef<uint8_t> ID(reinterpret_cast<const uint8_t *>(Words.data()), Size);
3490 for (const auto &B : ID)
3491 OS << format_hex_no_prefix(B, 2);
3494 case ELF::NT_GNU_GOLD_VERSION:
3496 << StringRef(reinterpret_cast<const char *>(Words.data()), Size);
3503 template <typename ELFT>
3504 static void printAMDGPUNote(raw_ostream &OS, uint32_t NoteType,
3505 ArrayRef<typename ELFFile<ELFT>::Elf_Word> Words,
3510 case ELF::NT_AMD_AMDGPU_HSA_METADATA:
3511 OS << " HSA Metadata:\n"
3512 << StringRef(reinterpret_cast<const char *>(Words.data()), Size);
3514 case ELF::NT_AMD_AMDGPU_ISA:
3515 OS << " ISA Version:\n"
3517 << StringRef(reinterpret_cast<const char *>(Words.data()), Size);
3519 case ELF::NT_AMD_AMDGPU_PAL_METADATA:
3520 const uint32_t *PALMetadataBegin = reinterpret_cast<const uint32_t *>(Words.data());
3521 const uint32_t *PALMetadataEnd = PALMetadataBegin + Size;
3522 std::vector<uint32_t> PALMetadata(PALMetadataBegin, PALMetadataEnd);
3523 std::string PALMetadataString;
3524 auto Error = AMDGPU::PALMD::toString(PALMetadata, PALMetadataString);
3525 OS << " PAL Metadata:\n";
3530 OS << PALMetadataString;
3536 template <class ELFT>
3537 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
3538 const Elf_Ehdr *e = Obj->getHeader();
3539 bool IsCore = e->e_type == ELF::ET_CORE;
3541 auto process = [&](const typename ELFFile<ELFT>::Elf_Off Offset,
3542 const typename ELFFile<ELFT>::Elf_Addr Size) {
3546 const auto *P = static_cast<const uint8_t *>(Obj->base() + Offset);
3547 const auto *E = P + Size;
3549 OS << "Displaying notes found at file offset " << format_hex(Offset, 10)
3550 << " with length " << format_hex(Size, 10) << ":\n"
3551 << " Owner Data size\tDescription\n";
3554 const Elf_Word *Words = reinterpret_cast<const Elf_Word *>(&P[0]);
3556 uint32_t NameSize = Words[0];
3557 uint32_t DescriptorSize = Words[1];
3558 uint32_t Type = Words[2];
3560 ArrayRef<Elf_Word> Descriptor(&Words[3 + (alignTo<4>(NameSize) / 4)],
3561 alignTo<4>(DescriptorSize) / 4);
3566 StringRef(reinterpret_cast<const char *>(&Words[3]), NameSize - 1);
3568 OS << " " << Name << std::string(22 - NameSize, ' ')
3569 << format_hex(DescriptorSize, 10) << '\t';
3571 if (Name == "GNU") {
3572 OS << getGNUNoteTypeName(Type) << '\n';
3573 printGNUNote<ELFT>(OS, Type, Descriptor, DescriptorSize);
3574 } else if (Name == "FreeBSD") {
3575 OS << getFreeBSDNoteTypeName(Type) << '\n';
3576 } else if (Name == "AMD") {
3577 OS << getAMDGPUNoteTypeName(Type) << '\n';
3578 printAMDGPUNote<ELFT>(OS, Type, Descriptor, DescriptorSize);
3580 OS << "Unknown note type: (" << format_hex(Type, 10) << ')';
3584 P = P + 3 * sizeof(Elf_Word) + alignTo<4>(NameSize) +
3585 alignTo<4>(DescriptorSize);
3590 for (const auto &P : unwrapOrError(Obj->program_headers()))
3591 if (P.p_type == PT_NOTE)
3592 process(P.p_offset, P.p_filesz);
3594 for (const auto &S : unwrapOrError(Obj->sections()))
3595 if (S.sh_type == SHT_NOTE)
3596 process(S.sh_offset, S.sh_size);
3600 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
3601 const Elf_Ehdr *e = Obj->getHeader();
3603 DictScope D(W, "ElfHeader");
3605 DictScope D(W, "Ident");
3606 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4));
3607 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
3608 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA],
3609 makeArrayRef(ElfDataEncoding));
3610 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]);
3612 auto OSABI = makeArrayRef(ElfOSABI);
3613 if (e->e_ident[ELF::EI_OSABI] >= ELF::ELFOSABI_FIRST_ARCH &&
3614 e->e_ident[ELF::EI_OSABI] <= ELF::ELFOSABI_LAST_ARCH) {
3615 switch (e->e_machine) {
3616 case ELF::EM_AMDGPU:
3617 OSABI = makeArrayRef(AMDGPUElfOSABI);
3620 OSABI = makeArrayRef(ARMElfOSABI);
3622 case ELF::EM_TI_C6000:
3623 OSABI = makeArrayRef(C6000ElfOSABI);
3627 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI], OSABI);
3628 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]);
3629 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD));
3632 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType));
3633 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType));
3634 W.printNumber("Version", e->e_version);
3635 W.printHex("Entry", e->e_entry);
3636 W.printHex("ProgramHeaderOffset", e->e_phoff);
3637 W.printHex("SectionHeaderOffset", e->e_shoff);
3638 if (e->e_machine == EM_MIPS)
3639 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags),
3640 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
3641 unsigned(ELF::EF_MIPS_MACH));
3642 else if (e->e_machine == EM_AMDGPU)
3643 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderAMDGPUFlags),
3644 unsigned(ELF::EF_AMDGPU_ARCH));
3645 else if (e->e_machine == EM_RISCV)
3646 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderRISCVFlags));
3648 W.printFlags("Flags", e->e_flags);
3649 W.printNumber("HeaderSize", e->e_ehsize);
3650 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize);
3651 W.printNumber("ProgramHeaderCount", e->e_phnum);
3652 W.printNumber("SectionHeaderEntrySize", e->e_shentsize);
3653 W.printNumber("SectionHeaderCount", e->e_shnum);
3654 W.printNumber("StringTableSectionIndex", e->e_shstrndx);
3658 template <class ELFT>
3659 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) {
3660 DictScope Lists(W, "Groups");
3661 std::vector<GroupSection> V = getGroups<ELFT>(Obj);
3662 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V);
3663 for (const GroupSection &G : V) {
3664 DictScope D(W, "Group");
3665 W.printNumber("Name", G.Name, G.ShName);
3666 W.printNumber("Index", G.Index);
3667 W.printHex("Type", getGroupType(G.Type), G.Type);
3668 W.startLine() << "Signature: " << G.Signature << "\n";
3670 ListScope L(W, "Section(s) in group");
3671 for (const GroupMember &GM : G.Members) {
3672 const GroupSection *MainGroup = Map[GM.Index];
3673 if (MainGroup != &G) {
3675 errs() << "Error: " << GM.Name << " (" << GM.Index
3676 << ") in a group " + G.Name + " (" << G.Index
3677 << ") is already in a group " + MainGroup->Name + " ("
3678 << MainGroup->Index << ")\n";
3682 W.startLine() << GM.Name << " (" << GM.Index << ")\n";
3687 W.startLine() << "There are no group sections in the file.\n";
3690 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) {
3691 ListScope D(W, "Relocations");
3693 int SectionNumber = -1;
3694 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3697 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA &&
3698 Sec.sh_type != ELF::SHT_ANDROID_REL &&
3699 Sec.sh_type != ELF::SHT_ANDROID_RELA)
3702 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3704 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
3707 printRelocations(&Sec, Obj);
3710 W.startLine() << "}\n";
3714 template <class ELFT>
3715 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) {
3716 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link));
3718 switch (Sec->sh_type) {
3720 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) {
3722 Rela.r_offset = R.r_offset;
3723 Rela.r_info = R.r_info;
3725 printRelocation(Obj, Rela, SymTab);
3729 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec)))
3730 printRelocation(Obj, R, SymTab);
3732 case ELF::SHT_ANDROID_REL:
3733 case ELF::SHT_ANDROID_RELA:
3734 for (const Elf_Rela &R : unwrapOrError(Obj->android_relas(Sec)))
3735 printRelocation(Obj, R, SymTab);
3740 template <class ELFT>
3741 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel,
3742 const Elf_Shdr *SymTab) {
3743 SmallString<32> RelocName;
3744 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
3745 StringRef TargetName;
3746 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab));
3747 if (Sym && Sym->getType() == ELF::STT_SECTION) {
3748 const Elf_Shdr *Sec = unwrapOrError(
3749 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
3750 TargetName = unwrapOrError(Obj->getSectionName(Sec));
3752 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
3753 TargetName = unwrapOrError(Sym->getName(StrTable));
3756 if (opts::ExpandRelocs) {
3757 DictScope Group(W, "Relocation");
3758 W.printHex("Offset", Rel.r_offset);
3759 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
3760 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-",
3761 Rel.getSymbol(Obj->isMips64EL()));
3762 W.printHex("Addend", Rel.r_addend);
3764 raw_ostream &OS = W.startLine();
3765 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
3766 << (!TargetName.empty() ? TargetName : "-") << " "
3767 << W.hex(Rel.r_addend) << "\n";
3771 template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) {
3772 ListScope SectionsD(W, "Sections");
3774 int SectionIndex = -1;
3775 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3778 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3780 DictScope SectionD(W, "Section");
3781 W.printNumber("Index", SectionIndex);
3782 W.printNumber("Name", Name, Sec.sh_name);
3785 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type),
3787 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags),
3788 std::end(ElfSectionFlags));
3789 switch (Obj->getHeader()->e_machine) {
3791 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags),
3792 std::end(ElfARMSectionFlags));
3795 SectionFlags.insert(SectionFlags.end(),
3796 std::begin(ElfHexagonSectionFlags),
3797 std::end(ElfHexagonSectionFlags));
3800 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags),
3801 std::end(ElfMipsSectionFlags));
3804 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags),
3805 std::end(ElfX86_64SectionFlags));
3808 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags),
3809 std::end(ElfXCoreSectionFlags));
3815 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags));
3816 W.printHex("Address", Sec.sh_addr);
3817 W.printHex("Offset", Sec.sh_offset);
3818 W.printNumber("Size", Sec.sh_size);
3819 W.printNumber("Link", Sec.sh_link);
3820 W.printNumber("Info", Sec.sh_info);
3821 W.printNumber("AddressAlignment", Sec.sh_addralign);
3822 W.printNumber("EntrySize", Sec.sh_entsize);
3824 if (opts::SectionRelocations) {
3825 ListScope D(W, "Relocations");
3826 printRelocations(&Sec, Obj);
3829 if (opts::SectionSymbols) {
3830 ListScope D(W, "Symbols");
3831 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec();
3832 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
3834 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) {
3835 const Elf_Shdr *SymSec = unwrapOrError(
3836 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable()));
3838 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(),
3843 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) {
3844 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec));
3845 W.printBinaryBlock("SectionData",
3846 StringRef((const char *)Data.data(), Data.size()));
3851 template <class ELFT>
3852 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
3853 const Elf_Sym *First, StringRef StrTable,
3855 unsigned SectionIndex = 0;
3856 StringRef SectionName;
3857 getSectionNameIndex(*Obj, Symbol, First, this->dumper()->getShndxTable(),
3858 SectionName, SectionIndex);
3859 std::string FullSymbolName =
3860 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
3861 unsigned char SymbolType = Symbol->getType();
3863 DictScope D(W, "Symbol");
3864 W.printNumber("Name", FullSymbolName, Symbol->st_name);
3865 W.printHex("Value", Symbol->st_value);
3866 W.printNumber("Size", Symbol->st_size);
3867 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
3868 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
3869 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
3870 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes));
3872 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes));
3873 if (Symbol->st_other == 0)
3874 // Usually st_other flag is zero. Do not pollute the output
3875 // by flags enumeration in that case.
3876 W.printNumber("Other", 0);
3878 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags),
3879 std::end(ElfSymOtherFlags));
3880 if (Obj->getHeader()->e_machine == EM_MIPS) {
3881 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16
3882 // flag overlapped with other ST_MIPS_xxx flags. So consider both
3883 // cases separately.
3884 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16)
3885 SymOtherFlags.insert(SymOtherFlags.end(),
3886 std::begin(ElfMips16SymOtherFlags),
3887 std::end(ElfMips16SymOtherFlags));
3889 SymOtherFlags.insert(SymOtherFlags.end(),
3890 std::begin(ElfMipsSymOtherFlags),
3891 std::end(ElfMipsSymOtherFlags));
3893 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u);
3895 W.printHex("Section", SectionName, SectionIndex);
3898 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) {
3899 ListScope Group(W, "Symbols");
3900 this->dumper()->printSymbolsHelper(false);
3903 template <class ELFT>
3904 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
3905 ListScope Group(W, "DynamicSymbols");
3906 this->dumper()->printSymbolsHelper(true);
3909 template <class ELFT>
3910 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3911 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3912 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3913 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3914 if (DynRelRegion.Size && DynRelaRegion.Size)
3915 report_fatal_error("There are both REL and RELA dynamic relocations");
3916 W.startLine() << "Dynamic Relocations {\n";
3918 if (DynRelaRegion.Size > 0)
3919 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3920 printDynamicRelocation(Obj, Rela);
3922 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3924 Rela.r_offset = Rel.r_offset;
3925 Rela.r_info = Rel.r_info;
3927 printDynamicRelocation(Obj, Rela);
3929 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela))
3930 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
3931 printDynamicRelocation(Obj, Rela);
3933 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
3935 Rela.r_offset = Rel.r_offset;
3936 Rela.r_info = Rel.r_info;
3938 printDynamicRelocation(Obj, Rela);
3941 W.startLine() << "}\n";
3944 template <class ELFT>
3945 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) {
3946 SmallString<32> RelocName;
3947 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
3948 StringRef SymbolName;
3949 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL());
3950 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
3952 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
3953 if (opts::ExpandRelocs) {
3954 DictScope Group(W, "Relocation");
3955 W.printHex("Offset", Rel.r_offset);
3956 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
3957 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-");
3958 W.printHex("Addend", Rel.r_addend);
3960 raw_ostream &OS = W.startLine();
3961 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
3962 << (!SymbolName.empty() ? SymbolName : "-") << " "
3963 << W.hex(Rel.r_addend) << "\n";
3967 template <class ELFT>
3968 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
3969 ListScope L(W, "ProgramHeaders");
3971 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
3972 DictScope P(W, "ProgramHeader");
3974 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type),
3976 W.printHex("Offset", Phdr.p_offset);
3977 W.printHex("VirtualAddress", Phdr.p_vaddr);
3978 W.printHex("PhysicalAddress", Phdr.p_paddr);
3979 W.printNumber("FileSize", Phdr.p_filesz);
3980 W.printNumber("MemSize", Phdr.p_memsz);
3981 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags));
3982 W.printNumber("Alignment", Phdr.p_align);
3986 template <class ELFT>
3987 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
3988 W.startLine() << "Hash Histogram not implemented!\n";
3991 template <class ELFT>
3992 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
3993 W.startLine() << "printNotes not implemented!\n";