1 //===-- ELFDumper.cpp - ELF-specific dumper ---------------------*- C++ -*-===//
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 "ARMAttributeParser.h"
16 #include "ARMEHABIPrinter.h"
18 #include "ObjDumper.h"
19 #include "StackMapPrinter.h"
20 #include "llvm-readobj.h"
21 #include "llvm/ADT/Optional.h"
22 #include "llvm/ADT/SmallString.h"
23 #include "llvm/ADT/StringExtras.h"
24 #include "llvm/Object/ELFObjectFile.h"
25 #include "llvm/Support/ARMBuildAttributes.h"
26 #include "llvm/Support/Compiler.h"
27 #include "llvm/Support/Format.h"
28 #include "llvm/Support/FormattedStream.h"
29 #include "llvm/Support/MathExtras.h"
30 #include "llvm/Support/MipsABIFlags.h"
31 #include "llvm/Support/ScopedPrinter.h"
32 #include "llvm/Support/raw_ostream.h"
35 using namespace llvm::object;
38 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \
39 case ns::enum: return #enum;
41 #define ENUM_ENT(enum, altName) \
42 { #enum, altName, ELF::enum }
44 #define ENUM_ENT_1(enum) \
45 { #enum, #enum, ELF::enum }
47 #define LLVM_READOBJ_PHDR_ENUM(ns, enum) \
49 return std::string(#enum).substr(3);
51 #define TYPEDEF_ELF_TYPES(ELFT) \
52 typedef ELFFile<ELFT> ELFO; \
53 typedef typename ELFO::Elf_Shdr Elf_Shdr; \
54 typedef typename ELFO::Elf_Sym Elf_Sym; \
55 typedef typename ELFO::Elf_Dyn Elf_Dyn; \
56 typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range; \
57 typedef typename ELFO::Elf_Rel Elf_Rel; \
58 typedef typename ELFO::Elf_Rela Elf_Rela; \
59 typedef typename ELFO::Elf_Rela_Range Elf_Rela_Range; \
60 typedef typename ELFO::Elf_Phdr Elf_Phdr; \
61 typedef typename ELFO::Elf_Half Elf_Half; \
62 typedef typename ELFO::Elf_Ehdr Elf_Ehdr; \
63 typedef typename ELFO::Elf_Word Elf_Word; \
64 typedef typename ELFO::Elf_Hash Elf_Hash; \
65 typedef typename ELFO::Elf_GnuHash Elf_GnuHash; \
66 typedef typename ELFO::uintX_t uintX_t;
70 template <class ELFT> class DumpStyle;
72 /// Represents a contiguous uniform range in the file. We cannot just create a
73 /// range directly because when creating one of these from the .dynamic table
74 /// the size, entity size and virtual address are different entries in arbitrary
75 /// order (DT_REL, DT_RELSZ, DT_RELENT for example).
76 struct DynRegionInfo {
77 DynRegionInfo() : Addr(nullptr), Size(0), EntSize(0) {}
78 DynRegionInfo(const void *A, uint64_t S, uint64_t ES)
79 : Addr(A), Size(S), EntSize(ES) {}
80 /// \brief Address in current address space.
82 /// \brief Size in bytes of the region.
84 /// \brief Size of each entity in the region.
87 template <typename Type> ArrayRef<Type> getAsArrayRef() const {
88 const Type *Start = reinterpret_cast<const Type *>(Addr);
90 return {Start, Start};
91 if (EntSize != sizeof(Type) || Size % EntSize)
92 reportError("Invalid entity size");
93 return {Start, Start + (Size / EntSize)};
97 template<typename ELFT>
98 class ELFDumper : public ObjDumper {
100 ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer);
102 void printFileHeaders() override;
103 void printSections() override;
104 void printRelocations() override;
105 void printDynamicRelocations() override;
106 void printSymbols() override;
107 void printDynamicSymbols() override;
108 void printUnwindInfo() override;
110 void printDynamicTable() override;
111 void printNeededLibraries() override;
112 void printProgramHeaders() override;
113 void printHashTable() override;
114 void printGnuHashTable() override;
115 void printLoadName() override;
116 void printVersionInfo() override;
117 void printGroupSections() override;
119 void printAttributes() override;
120 void printMipsPLTGOT() override;
121 void printMipsABIFlags() override;
122 void printMipsReginfo() override;
123 void printMipsOptions() override;
125 void printStackMap() const override;
127 void printHashHistogram() override;
130 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle;
131 typedef ELFFile<ELFT> ELFO;
132 typedef typename ELFO::Elf_Shdr Elf_Shdr;
133 typedef typename ELFO::Elf_Sym Elf_Sym;
134 typedef typename ELFO::Elf_Sym_Range Elf_Sym_Range;
135 typedef typename ELFO::Elf_Dyn Elf_Dyn;
136 typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range;
137 typedef typename ELFO::Elf_Rel Elf_Rel;
138 typedef typename ELFO::Elf_Rela Elf_Rela;
139 typedef typename ELFO::Elf_Rel_Range Elf_Rel_Range;
140 typedef typename ELFO::Elf_Rela_Range Elf_Rela_Range;
141 typedef typename ELFO::Elf_Phdr Elf_Phdr;
142 typedef typename ELFO::Elf_Half Elf_Half;
143 typedef typename ELFO::Elf_Hash Elf_Hash;
144 typedef typename ELFO::Elf_GnuHash Elf_GnuHash;
145 typedef typename ELFO::Elf_Ehdr Elf_Ehdr;
146 typedef typename ELFO::Elf_Word Elf_Word;
147 typedef typename ELFO::uintX_t uintX_t;
148 typedef typename ELFO::Elf_Versym Elf_Versym;
149 typedef typename ELFO::Elf_Verneed Elf_Verneed;
150 typedef typename ELFO::Elf_Vernaux Elf_Vernaux;
151 typedef typename ELFO::Elf_Verdef Elf_Verdef;
152 typedef typename ELFO::Elf_Verdaux Elf_Verdaux;
154 DynRegionInfo checkDRI(DynRegionInfo DRI) {
155 if (DRI.Addr < Obj->base() ||
156 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize())
157 error(llvm::object::object_error::parse_failed);
161 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) {
162 return checkDRI({Obj->base() + P->p_offset, P->p_filesz, EntSize});
165 DynRegionInfo createDRIFrom(const Elf_Shdr *S) {
166 return checkDRI({Obj->base() + S->sh_offset, S->sh_size, S->sh_entsize});
169 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments);
171 void printValue(uint64_t Type, uint64_t Value);
173 StringRef getDynamicString(uint64_t Offset) const;
174 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb,
175 bool &IsDefault) const;
176 void LoadVersionMap() const;
177 void LoadVersionNeeds(const Elf_Shdr *ec) const;
178 void LoadVersionDefs(const Elf_Shdr *sec) const;
181 DynRegionInfo DynRelRegion;
182 DynRegionInfo DynRelaRegion;
183 DynRegionInfo DynPLTRelRegion;
184 DynRegionInfo DynSymRegion;
185 DynRegionInfo DynamicTable;
186 StringRef DynamicStringTable;
188 const Elf_Hash *HashTable = nullptr;
189 const Elf_GnuHash *GnuHashTable = nullptr;
190 const Elf_Shdr *DotSymtabSec = nullptr;
191 StringRef DynSymtabName;
192 ArrayRef<Elf_Word> ShndxTable;
194 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version
195 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r
196 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d
198 // Records for each version index the corresponding Verdef or Vernaux entry.
199 // This is filled the first time LoadVersionMap() is called.
200 class VersionMapEntry : public PointerIntPair<const void *, 1> {
202 // If the integer is 0, this is an Elf_Verdef*.
203 // If the integer is 1, this is an Elf_Vernaux*.
204 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {}
205 VersionMapEntry(const Elf_Verdef *verdef)
206 : PointerIntPair<const void *, 1>(verdef, 0) {}
207 VersionMapEntry(const Elf_Vernaux *vernaux)
208 : PointerIntPair<const void *, 1>(vernaux, 1) {}
209 bool isNull() const { return getPointer() == nullptr; }
210 bool isVerdef() const { return !isNull() && getInt() == 0; }
211 bool isVernaux() const { return !isNull() && getInt() == 1; }
212 const Elf_Verdef *getVerdef() const {
213 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr;
215 const Elf_Vernaux *getVernaux() const {
216 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr;
219 mutable SmallVector<VersionMapEntry, 16> VersionMap;
222 Elf_Dyn_Range dynamic_table() const {
223 return DynamicTable.getAsArrayRef<Elf_Dyn>();
226 Elf_Sym_Range dynamic_symbols() const {
227 return DynSymRegion.getAsArrayRef<Elf_Sym>();
230 Elf_Rel_Range dyn_rels() const;
231 Elf_Rela_Range dyn_relas() const;
232 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable,
233 bool IsDynamic) const;
235 void printSymbolsHelper(bool IsDynamic) const;
236 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; }
237 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; }
238 StringRef getDynamicStringTable() const { return DynamicStringTable; }
239 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; }
240 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; }
241 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; }
242 const Elf_Hash *getHashTable() const { return HashTable; }
243 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; }
246 template <class ELFT>
247 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const {
248 StringRef StrTable, SymtabName;
250 Elf_Sym_Range Syms(nullptr, nullptr);
252 StrTable = DynamicStringTable;
253 Syms = dynamic_symbols();
254 SymtabName = DynSymtabName;
255 if (DynSymRegion.Addr)
256 Entries = DynSymRegion.Size / DynSymRegion.EntSize;
260 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec));
261 Syms = Obj->symbols(DotSymtabSec);
262 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec));
263 Entries = DotSymtabSec->getEntityCount();
265 if (Syms.begin() == Syms.end())
267 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries);
268 for (const auto &Sym : Syms)
269 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic);
272 template <typename ELFT> class DumpStyle {
274 using Elf_Shdr = typename ELFFile<ELFT>::Elf_Shdr;
275 using Elf_Sym = typename ELFFile<ELFT>::Elf_Sym;
277 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {}
278 virtual ~DumpStyle() {}
279 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0;
280 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0;
281 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0;
282 virtual void printSections(const ELFFile<ELFT> *Obj) = 0;
283 virtual void printSymbols(const ELFFile<ELFT> *Obj) = 0;
284 virtual void printDynamicSymbols(const ELFFile<ELFT> *Obj) = 0;
285 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0;
286 virtual void printSymtabMessage(const ELFFile<ELFT> *obj, StringRef Name,
290 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol,
291 const Elf_Sym *FirstSym, StringRef StrTable,
293 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj) = 0;
294 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0;
295 const ELFDumper<ELFT> *dumper() const { return Dumper; }
297 const ELFDumper<ELFT> *Dumper;
300 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> {
301 formatted_raw_ostream OS;
303 TYPEDEF_ELF_TYPES(ELFT)
304 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
305 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {}
306 void printFileHeaders(const ELFO *Obj) override;
307 void printGroupSections(const ELFFile<ELFT> *Obj) override;
308 void printRelocations(const ELFO *Obj) override;
309 void printSections(const ELFO *Obj) override;
310 void printSymbols(const ELFO *Obj) override;
311 void printDynamicSymbols(const ELFO *Obj) override;
312 void printDynamicRelocations(const ELFO *Obj) override;
313 virtual void printSymtabMessage(const ELFO *Obj, StringRef Name,
314 size_t Offset) override;
315 void printProgramHeaders(const ELFO *Obj) override;
316 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
322 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {}
323 Field(unsigned Col) : Str(""), Column(Col) {}
326 template <typename T, typename TEnum>
327 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) {
328 for (const auto &EnumItem : EnumValues)
329 if (EnumItem.Value == Value)
330 return EnumItem.AltName;
331 return to_hexString(Value, false);
334 formatted_raw_ostream &printField(struct Field F) {
336 OS.PadToColumn(F.Column);
341 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
342 const Elf_Rela &R, bool IsRela);
343 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
344 StringRef StrTable, bool IsDynamic) override;
345 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol,
346 const Elf_Sym *FirstSym);
347 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela);
348 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
349 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
350 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
351 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
354 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> {
356 TYPEDEF_ELF_TYPES(ELFT)
357 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
358 : DumpStyle<ELFT>(Dumper), W(W) {}
360 void printFileHeaders(const ELFO *Obj) override;
361 void printGroupSections(const ELFFile<ELFT> *Obj) override;
362 void printRelocations(const ELFO *Obj) override;
363 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj);
364 void printSections(const ELFO *Obj) override;
365 void printSymbols(const ELFO *Obj) override;
366 void printDynamicSymbols(const ELFO *Obj) override;
367 void printDynamicRelocations(const ELFO *Obj) override;
368 void printProgramHeaders(const ELFO *Obj) override;
369 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
372 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab);
373 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel);
374 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
375 StringRef StrTable, bool IsDynamic) override;
383 template <class ELFT>
384 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj,
385 ScopedPrinter &Writer,
386 std::unique_ptr<ObjDumper> &Result) {
387 Result.reset(new ELFDumper<ELFT>(Obj, Writer));
388 return readobj_error::success;
391 std::error_code createELFDumper(const object::ObjectFile *Obj,
392 ScopedPrinter &Writer,
393 std::unique_ptr<ObjDumper> &Result) {
394 // Little-endian 32-bit
395 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
396 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
399 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
400 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
402 // Little-endian 64-bit
403 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
404 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
407 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
408 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
410 return readobj_error::unsupported_obj_file_format;
415 // Iterate through the versions needed section, and place each Elf_Vernaux
416 // in the VersionMap according to its index.
417 template <class ELFT>
418 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
419 unsigned vn_size = sec->sh_size; // Size of section in bytes
420 unsigned vn_count = sec->sh_info; // Number of Verneed entries
421 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
422 const char *sec_end = sec_start + vn_size;
423 // The first Verneed entry is at the start of the section.
424 const char *p = sec_start;
425 for (unsigned i = 0; i < vn_count; i++) {
426 if (p + sizeof(Elf_Verneed) > sec_end)
427 report_fatal_error("Section ended unexpectedly while scanning "
428 "version needed records.");
429 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
430 if (vn->vn_version != ELF::VER_NEED_CURRENT)
431 report_fatal_error("Unexpected verneed version");
432 // Iterate through the Vernaux entries
433 const char *paux = p + vn->vn_aux;
434 for (unsigned j = 0; j < vn->vn_cnt; j++) {
435 if (paux + sizeof(Elf_Vernaux) > sec_end)
436 report_fatal_error("Section ended unexpected while scanning auxiliary "
437 "version needed records.");
438 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
439 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
440 if (index >= VersionMap.size())
441 VersionMap.resize(index + 1);
442 VersionMap[index] = VersionMapEntry(vna);
443 paux += vna->vna_next;
449 // Iterate through the version definitions, and place each Elf_Verdef
450 // in the VersionMap according to its index.
451 template <class ELFT>
452 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
453 unsigned vd_size = sec->sh_size; // Size of section in bytes
454 unsigned vd_count = sec->sh_info; // Number of Verdef entries
455 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
456 const char *sec_end = sec_start + vd_size;
457 // The first Verdef entry is at the start of the section.
458 const char *p = sec_start;
459 for (unsigned i = 0; i < vd_count; i++) {
460 if (p + sizeof(Elf_Verdef) > sec_end)
461 report_fatal_error("Section ended unexpectedly while scanning "
462 "version definitions.");
463 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
464 if (vd->vd_version != ELF::VER_DEF_CURRENT)
465 report_fatal_error("Unexpected verdef version");
466 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
467 if (index >= VersionMap.size())
468 VersionMap.resize(index + 1);
469 VersionMap[index] = VersionMapEntry(vd);
474 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const {
475 // If there is no dynamic symtab or version table, there is nothing to do.
476 if (!DynSymRegion.Addr || !dot_gnu_version_sec)
479 // Has the VersionMap already been loaded?
480 if (VersionMap.size() > 0)
483 // The first two version indexes are reserved.
484 // Index 0 is LOCAL, index 1 is GLOBAL.
485 VersionMap.push_back(VersionMapEntry());
486 VersionMap.push_back(VersionMapEntry());
488 if (dot_gnu_version_d_sec)
489 LoadVersionDefs(dot_gnu_version_d_sec);
491 if (dot_gnu_version_r_sec)
492 LoadVersionNeeds(dot_gnu_version_r_sec);
495 template <typename ELFO, class ELFT>
496 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
497 const typename ELFO::Elf_Shdr *Sec,
499 DictScope SS(W, "Version symbols");
502 StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
503 W.printNumber("Section Name", Name, Sec->sh_name);
504 W.printHex("Address", Sec->sh_addr);
505 W.printHex("Offset", Sec->sh_offset);
506 W.printNumber("Link", Sec->sh_link);
508 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset;
509 StringRef StrTable = Dumper->getDynamicStringTable();
511 // Same number of entries in the dynamic symbol table (DT_SYMTAB).
512 ListScope Syms(W, "Symbols");
513 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) {
514 DictScope S(W, "Symbol");
515 std::string FullSymbolName =
516 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */);
517 W.printNumber("Version", *P);
518 W.printString("Name", FullSymbolName);
519 P += sizeof(typename ELFO::Elf_Half);
523 template <typename ELFO, class ELFT>
524 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper,
526 const typename ELFO::Elf_Shdr *Sec,
528 DictScope SD(W, "Version definition");
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 unsigned verdef_entries = 0;
538 // The number of entries in the section SHT_GNU_verdef
539 // is determined by DT_VERDEFNUM tag.
540 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) {
541 if (Dyn.d_tag == DT_VERDEFNUM)
542 verdef_entries = Dyn.d_un.d_val;
544 const uint8_t *SecStartAddress =
545 (const uint8_t *)Obj->base() + Sec->sh_offset;
546 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size;
547 const uint8_t *P = SecStartAddress;
548 const typename ELFO::Elf_Shdr *StrTab =
549 unwrapOrError(Obj->getSection(Sec->sh_link));
551 ListScope Entries(W, "Entries");
552 for (unsigned i = 0; i < verdef_entries; ++i) {
553 if (P + sizeof(typename ELFO::Elf_Verdef) > SecEndAddress)
554 report_fatal_error("invalid offset in the section");
555 auto *VD = reinterpret_cast<const typename ELFO::Elf_Verdef *>(P);
556 DictScope Entry(W, "Entry");
557 W.printHex("Offset", (uintptr_t)P - (uintptr_t)SecStartAddress);
558 W.printNumber("Rev", VD->vd_version);
559 // FIXME: print something more readable.
560 W.printNumber("Flags", VD->vd_flags);
561 W.printNumber("Index", VD->vd_ndx);
562 W.printNumber("Cnt", VD->vd_cnt);
563 W.printNumber("Hash", VD->vd_hash);
564 W.printString("Name",
565 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
566 VD->getAux()->vda_name)));
571 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() {
572 // Dump version symbol section.
573 printVersionSymbolSection(this, Obj, dot_gnu_version_sec, W);
575 // Dump version definition section.
576 printVersionDefinitionSection(this, Obj, dot_gnu_version_d_sec, W);
579 template <typename ELFT>
580 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab,
582 bool &IsDefault) const {
583 // This is a dynamic symbol. Look in the GNU symbol version table.
584 if (!dot_gnu_version_sec) {
587 return StringRef("");
590 // Determine the position in the symbol table of this entry.
591 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) -
592 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) /
595 // Get the corresponding version index entry
596 const Elf_Versym *vs =
597 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
598 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
600 // Special markers for unversioned symbols.
601 if (version_index == ELF::VER_NDX_LOCAL ||
602 version_index == ELF::VER_NDX_GLOBAL) {
604 return StringRef("");
607 // Lookup this symbol in the version table
609 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
610 reportError("Invalid version entry");
611 const VersionMapEntry &entry = VersionMap[version_index];
613 // Get the version name string
615 if (entry.isVerdef()) {
616 // The first Verdaux entry holds the name.
617 name_offset = entry.getVerdef()->getAux()->vda_name;
618 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
620 name_offset = entry.getVernaux()->vna_name;
623 if (name_offset >= StrTab.size())
624 reportError("Invalid string offset");
625 return StringRef(StrTab.data() + name_offset);
628 template <typename ELFT>
629 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol,
631 bool IsDynamic) const {
632 StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable));
636 std::string FullSymbolName(SymbolName);
639 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault);
640 FullSymbolName += (IsDefault ? "@@" : "@");
641 FullSymbolName += Version;
642 return FullSymbolName;
645 template <typename ELFO>
647 getSectionNameIndex(const ELFO &Obj, const typename ELFO::Elf_Sym *Symbol,
648 const typename ELFO::Elf_Sym *FirstSym,
649 ArrayRef<typename ELFO::Elf_Word> ShndxTable,
650 StringRef &SectionName, unsigned &SectionIndex) {
651 SectionIndex = Symbol->st_shndx;
652 if (Symbol->isUndefined())
653 SectionName = "Undefined";
654 else if (Symbol->isProcessorSpecific())
655 SectionName = "Processor Specific";
656 else if (Symbol->isOSSpecific())
657 SectionName = "Operating System Specific";
658 else if (Symbol->isAbsolute())
659 SectionName = "Absolute";
660 else if (Symbol->isCommon())
661 SectionName = "Common";
662 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX)
663 SectionName = "Reserved";
665 if (SectionIndex == SHN_XINDEX)
667 Obj.getExtendedSymbolTableIndex(Symbol, FirstSym, ShndxTable);
668 const typename ELFO::Elf_Shdr *Sec =
669 unwrapOrError(Obj.getSection(SectionIndex));
670 SectionName = unwrapOrError(Obj.getSectionName(Sec));
674 template <class ELFO>
675 static const typename ELFO::Elf_Shdr *
676 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) {
677 for (const auto &Shdr : Obj->sections())
678 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0)
683 template <class ELFO>
684 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj,
686 for (const auto &Shdr : Obj.sections()) {
687 if (Name == unwrapOrError(Obj.getSectionName(&Shdr)))
693 static const EnumEntry<unsigned> ElfClass[] = {
694 {"None", "none", ELF::ELFCLASSNONE},
695 {"32-bit", "ELF32", ELF::ELFCLASS32},
696 {"64-bit", "ELF64", ELF::ELFCLASS64},
699 static const EnumEntry<unsigned> ElfDataEncoding[] = {
700 {"None", "none", ELF::ELFDATANONE},
701 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB},
702 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB},
705 static const EnumEntry<unsigned> ElfObjectFileType[] = {
706 {"None", "NONE (none)", ELF::ET_NONE},
707 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL},
708 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC},
709 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN},
710 {"Core", "CORE (Core file)", ELF::ET_CORE},
713 static const EnumEntry<unsigned> ElfOSABI[] = {
714 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE},
715 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX},
716 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD},
717 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX},
718 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD},
719 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS},
720 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX},
721 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX},
722 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD},
723 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64},
724 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO},
725 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD},
726 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS},
727 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK},
728 {"AROS", "AROS", ELF::ELFOSABI_AROS},
729 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS},
730 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI},
731 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI},
732 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX},
733 {"ARM", "ARM", ELF::ELFOSABI_ARM},
734 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE}
737 static const EnumEntry<unsigned> ElfMachineType[] = {
738 ENUM_ENT(EM_NONE, "None"),
739 ENUM_ENT(EM_M32, "WE32100"),
740 ENUM_ENT(EM_SPARC, "Sparc"),
741 ENUM_ENT(EM_386, "Intel 80386"),
742 ENUM_ENT(EM_68K, "MC68000"),
743 ENUM_ENT(EM_88K, "MC88000"),
744 ENUM_ENT(EM_IAMCU, "EM_IAMCU"),
745 ENUM_ENT(EM_860, "Intel 80860"),
746 ENUM_ENT(EM_MIPS, "MIPS R3000"),
747 ENUM_ENT(EM_S370, "IBM System/370"),
748 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"),
749 ENUM_ENT(EM_PARISC, "HPPA"),
750 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"),
751 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"),
752 ENUM_ENT(EM_960, "Intel 80960"),
753 ENUM_ENT(EM_PPC, "PowerPC"),
754 ENUM_ENT(EM_PPC64, "PowerPC64"),
755 ENUM_ENT(EM_S390, "IBM S/390"),
756 ENUM_ENT(EM_SPU, "SPU"),
757 ENUM_ENT(EM_V800, "NEC V800 series"),
758 ENUM_ENT(EM_FR20, "Fujistsu FR20"),
759 ENUM_ENT(EM_RH32, "TRW RH-32"),
760 ENUM_ENT(EM_RCE, "Motorola RCE"),
761 ENUM_ENT(EM_ARM, "ARM"),
762 ENUM_ENT(EM_ALPHA, "EM_ALPHA"),
763 ENUM_ENT(EM_SH, "Hitachi SH"),
764 ENUM_ENT(EM_SPARCV9, "Sparc v9"),
765 ENUM_ENT(EM_TRICORE, "Siemens Tricore"),
766 ENUM_ENT(EM_ARC, "ARC"),
767 ENUM_ENT(EM_H8_300, "Hitachi H8/300"),
768 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"),
769 ENUM_ENT(EM_H8S, "Hitachi H8S"),
770 ENUM_ENT(EM_H8_500, "Hitachi H8/500"),
771 ENUM_ENT(EM_IA_64, "Intel IA-64"),
772 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"),
773 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"),
774 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"),
775 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"),
776 ENUM_ENT(EM_PCP, "Siemens PCP"),
777 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"),
778 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"),
779 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"),
780 ENUM_ENT(EM_ME16, "Toyota ME16 processor"),
781 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"),
782 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"),
783 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"),
784 ENUM_ENT(EM_PDSP, "Sony DSP processor"),
785 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"),
786 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"),
787 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"),
788 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"),
789 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"),
790 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"),
791 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"),
792 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"),
793 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"),
794 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"),
795 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"),
796 ENUM_ENT(EM_VAX, "Digital VAX"),
797 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"),
798 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"),
799 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"),
800 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"),
801 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"),
802 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"),
803 ENUM_ENT(EM_PRISM, "Vitesse Prism"),
804 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"),
805 ENUM_ENT(EM_FR30, "Fujitsu FR30"),
806 ENUM_ENT(EM_D10V, "Mitsubishi D10V"),
807 ENUM_ENT(EM_D30V, "Mitsubishi D30V"),
808 ENUM_ENT(EM_V850, "NEC v850"),
809 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"),
810 ENUM_ENT(EM_MN10300, "Matsushita MN10300"),
811 ENUM_ENT(EM_MN10200, "Matsushita MN10200"),
812 ENUM_ENT(EM_PJ, "picoJava"),
813 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"),
814 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"),
815 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"),
816 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"),
817 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"),
818 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"),
819 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"),
820 ENUM_ENT(EM_SNP1K, "EM_SNP1K"),
821 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"),
822 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"),
823 ENUM_ENT(EM_MAX, "MAX Processor"),
824 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"),
825 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"),
826 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"),
827 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"),
828 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"),
829 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"),
830 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"),
831 ENUM_ENT(EM_UNICORE, "Unicore"),
832 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"),
833 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"),
834 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"),
835 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"),
836 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"),
837 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"),
838 ENUM_ENT(EM_M16C, "Renesas M16C"),
839 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"),
840 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"),
841 ENUM_ENT(EM_M32C, "Renesas M32C"),
842 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"),
843 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"),
844 ENUM_ENT(EM_SHARC, "EM_SHARC"),
845 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"),
846 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"),
847 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"),
848 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"),
849 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"),
850 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"),
851 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"),
852 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"),
853 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"),
854 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"),
855 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"),
856 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"),
857 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"),
858 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"),
859 ENUM_ENT(EM_8051, "Intel 8051 and variants"),
860 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"),
861 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"),
862 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"),
863 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"),
864 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"),
865 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"),
866 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"),
867 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"),
868 ENUM_ENT(EM_RX, "Renesas RX"),
869 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"),
870 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"),
871 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"),
872 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"),
873 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"),
874 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"),
875 ENUM_ENT(EM_L10M, "EM_L10M"),
876 ENUM_ENT(EM_K10M, "EM_K10M"),
877 ENUM_ENT(EM_AARCH64, "AArch64"),
878 ENUM_ENT(EM_AVR32, "Atmel AVR 8-bit microcontroller"),
879 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"),
880 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"),
881 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"),
882 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"),
883 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"),
884 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"),
885 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"),
886 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"),
887 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"),
888 ENUM_ENT(EM_OPEN8, "EM_OPEN8"),
889 ENUM_ENT(EM_RL78, "Renesas RL78"),
890 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"),
891 ENUM_ENT(EM_78KOR, "EM_78KOR"),
892 ENUM_ENT(EM_56800EX, "EM_56800EX"),
893 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"),
894 ENUM_ENT(EM_WEBASSEMBLY, "EM_WEBASSEMBLY"),
895 ENUM_ENT(EM_LANAI, "EM_LANAI"),
898 static const EnumEntry<unsigned> ElfSymbolBindings[] = {
899 {"Local", "LOCAL", ELF::STB_LOCAL},
900 {"Global", "GLOBAL", ELF::STB_GLOBAL},
901 {"Weak", "WEAK", ELF::STB_WEAK},
902 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}};
904 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = {
905 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT},
906 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL},
907 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN},
908 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}};
910 static const EnumEntry<unsigned> ElfSymbolTypes[] = {
911 {"None", "NOTYPE", ELF::STT_NOTYPE},
912 {"Object", "OBJECT", ELF::STT_OBJECT},
913 {"Function", "FUNC", ELF::STT_FUNC},
914 {"Section", "SECTION", ELF::STT_SECTION},
915 {"File", "FILE", ELF::STT_FILE},
916 {"Common", "COMMON", ELF::STT_COMMON},
917 {"TLS", "TLS", ELF::STT_TLS},
918 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}};
920 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = {
921 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL },
922 { "AMDGPU_HSA_INDIRECT_FUNCTION", ELF::STT_AMDGPU_HSA_INDIRECT_FUNCTION },
923 { "AMDGPU_HSA_METADATA", ELF::STT_AMDGPU_HSA_METADATA }
926 static const char *getElfSectionType(unsigned Arch, unsigned Type) {
930 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_EXIDX);
931 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_PREEMPTMAP);
932 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_ATTRIBUTES);
933 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_DEBUGOVERLAY);
934 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_OVERLAYSECTION);
936 case ELF::EM_HEXAGON:
937 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED); }
939 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND); }
941 case ELF::EM_MIPS_RS3_LE:
943 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO);
944 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS);
945 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_ABIFLAGS);
950 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NULL );
951 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PROGBITS );
952 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB );
953 LLVM_READOBJ_ENUM_CASE(ELF, SHT_STRTAB );
954 LLVM_READOBJ_ENUM_CASE(ELF, SHT_RELA );
955 LLVM_READOBJ_ENUM_CASE(ELF, SHT_HASH );
956 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNAMIC );
957 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOTE );
958 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOBITS );
959 LLVM_READOBJ_ENUM_CASE(ELF, SHT_REL );
960 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SHLIB );
961 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNSYM );
962 LLVM_READOBJ_ENUM_CASE(ELF, SHT_INIT_ARRAY );
963 LLVM_READOBJ_ENUM_CASE(ELF, SHT_FINI_ARRAY );
964 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PREINIT_ARRAY );
965 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GROUP );
966 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB_SHNDX );
967 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES );
968 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_HASH );
969 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verdef );
970 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verneed );
971 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_versym );
976 static const char *getGroupType(uint32_t Flag) {
977 if (Flag & ELF::GRP_COMDAT)
983 static const EnumEntry<unsigned> ElfSectionFlags[] = {
984 ENUM_ENT(SHF_WRITE, "W"),
985 ENUM_ENT(SHF_ALLOC, "A"),
986 ENUM_ENT(SHF_EXCLUDE, "E"),
987 ENUM_ENT(SHF_EXECINSTR, "X"),
988 ENUM_ENT(SHF_MERGE, "M"),
989 ENUM_ENT(SHF_STRINGS, "S"),
990 ENUM_ENT(SHF_INFO_LINK, "I"),
991 ENUM_ENT(SHF_LINK_ORDER, "L"),
992 ENUM_ENT(SHF_OS_NONCONFORMING, "o"),
993 ENUM_ENT(SHF_GROUP, "G"),
994 ENUM_ENT(SHF_TLS, "T"),
995 ENUM_ENT_1(XCORE_SHF_CP_SECTION),
996 ENUM_ENT_1(XCORE_SHF_DP_SECTION),
999 static const EnumEntry<unsigned> ElfAMDGPUSectionFlags[] = {
1000 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_GLOBAL),
1001 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_READONLY),
1002 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_CODE),
1003 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_AGENT)
1006 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = {
1007 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL)
1010 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = {
1011 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES),
1012 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ),
1013 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ),
1014 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP),
1015 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ),
1016 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ),
1017 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ),
1018 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING )
1021 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = {
1022 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE)
1025 static std::string getGNUFlags(uint64_t Flags) {
1027 for (auto Entry : ElfSectionFlags) {
1028 uint64_t Flag = Entry.Value & Flags;
1029 Flags &= ~Entry.Value;
1031 case ELF::SHF_WRITE:
1032 case ELF::SHF_ALLOC:
1033 case ELF::SHF_EXECINSTR:
1034 case ELF::SHF_MERGE:
1035 case ELF::SHF_STRINGS:
1036 case ELF::SHF_INFO_LINK:
1037 case ELF::SHF_LINK_ORDER:
1038 case ELF::SHF_OS_NONCONFORMING:
1039 case ELF::SHF_GROUP:
1041 case ELF::SHF_EXCLUDE:
1042 Str += Entry.AltName;
1045 if (Flags & ELF::SHF_MASKOS)
1047 else if (Flags & ELF::SHF_MASKPROC)
1056 static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
1057 // Check potentially overlapped processor-specific
1058 // program header type.
1060 case ELF::EM_AMDGPU:
1062 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM);
1063 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT);
1064 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT);
1065 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT);
1069 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
1072 case ELF::EM_MIPS_RS3_LE:
1074 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
1075 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
1076 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
1077 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS);
1082 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
1083 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
1084 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
1085 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
1086 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
1087 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
1088 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
1089 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
1091 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
1092 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
1094 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
1095 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
1100 static std::string getElfPtType(unsigned Arch, unsigned Type) {
1102 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL)
1103 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD)
1104 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC)
1105 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP)
1106 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE)
1107 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB)
1108 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR)
1109 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS)
1110 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME)
1111 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND)
1112 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK)
1113 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO)
1115 // All machine specific PT_* types
1117 case ELF::EM_AMDGPU:
1119 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM);
1120 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT);
1121 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT);
1122 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT);
1126 if (Type == ELF::PT_ARM_EXIDX)
1130 case ELF::EM_MIPS_RS3_LE:
1132 case PT_MIPS_REGINFO:
1134 case PT_MIPS_RTPROC:
1136 case PT_MIPS_OPTIONS:
1138 case PT_MIPS_ABIFLAGS:
1144 return std::string("<unknown>: ") + to_string(format_hex(Type, 1));
1147 static const EnumEntry<unsigned> ElfSegmentFlags[] = {
1148 LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
1149 LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
1150 LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
1153 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
1154 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER),
1155 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC),
1156 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC),
1157 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2),
1158 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE),
1159 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64),
1160 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008),
1161 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32),
1162 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64),
1163 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32),
1164 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64),
1165 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900),
1166 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010),
1167 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100),
1168 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650),
1169 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120),
1170 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111),
1171 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1),
1172 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON),
1173 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR),
1174 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2),
1175 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3),
1176 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400),
1177 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900),
1178 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500),
1179 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000),
1180 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E),
1181 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F),
1182 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A),
1183 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS),
1184 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16),
1185 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX),
1186 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1),
1187 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2),
1188 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3),
1189 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4),
1190 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5),
1191 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32),
1192 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64),
1193 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2),
1194 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2),
1195 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6),
1196 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6)
1199 static const EnumEntry<unsigned> ElfSymOtherFlags[] = {
1200 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL),
1201 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN),
1202 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED)
1205 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = {
1206 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1207 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1208 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC),
1209 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS)
1212 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = {
1213 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1214 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1215 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16)
1218 static const char *getElfMipsOptionsOdkType(unsigned Odk) {
1220 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL);
1221 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO);
1222 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS);
1223 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD);
1224 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH);
1225 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL);
1226 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS);
1227 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND);
1228 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR);
1229 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP);
1230 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT);
1231 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE);
1237 template <typename ELFT>
1238 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer)
1239 : ObjDumper(Writer), Obj(Obj) {
1241 SmallVector<const Elf_Phdr *, 4> LoadSegments;
1242 for (const Elf_Phdr &Phdr : Obj->program_headers()) {
1243 if (Phdr.p_type == ELF::PT_DYNAMIC) {
1244 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn));
1247 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0)
1249 LoadSegments.push_back(&Phdr);
1252 for (const Elf_Shdr &Sec : Obj->sections()) {
1253 switch (Sec.sh_type) {
1254 case ELF::SHT_SYMTAB:
1255 if (DotSymtabSec != nullptr)
1256 reportError("Multilpe SHT_SYMTAB");
1257 DotSymtabSec = &Sec;
1259 case ELF::SHT_DYNSYM:
1260 if (DynSymRegion.Size)
1261 reportError("Multilpe SHT_DYNSYM");
1262 DynSymRegion = createDRIFrom(&Sec);
1263 // This is only used (if Elf_Shdr present)for naming section in GNU style
1264 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec));
1266 case ELF::SHT_SYMTAB_SHNDX:
1267 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec));
1269 case ELF::SHT_GNU_versym:
1270 if (dot_gnu_version_sec != nullptr)
1271 reportError("Multiple SHT_GNU_versym");
1272 dot_gnu_version_sec = &Sec;
1274 case ELF::SHT_GNU_verdef:
1275 if (dot_gnu_version_d_sec != nullptr)
1276 reportError("Multiple SHT_GNU_verdef");
1277 dot_gnu_version_d_sec = &Sec;
1279 case ELF::SHT_GNU_verneed:
1280 if (dot_gnu_version_r_sec != nullptr)
1281 reportError("Multilpe SHT_GNU_verneed");
1282 dot_gnu_version_r_sec = &Sec;
1287 parseDynamicTable(LoadSegments);
1289 if (opts::Output == opts::GNU)
1290 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this));
1292 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this));
1295 template <typename ELFT>
1296 void ELFDumper<ELFT>::parseDynamicTable(
1297 ArrayRef<const Elf_Phdr *> LoadSegments) {
1298 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * {
1299 const Elf_Phdr *const *I = std::upper_bound(
1300 LoadSegments.begin(), LoadSegments.end(), VAddr, compareAddr<ELFT>);
1301 if (I == LoadSegments.begin())
1302 report_fatal_error("Virtual address is not in any segment");
1304 const Elf_Phdr &Phdr = **I;
1305 uint64_t Delta = VAddr - Phdr.p_vaddr;
1306 if (Delta >= Phdr.p_filesz)
1307 report_fatal_error("Virtual address is not in any segment");
1308 return Obj->base() + Phdr.p_offset + Delta;
1311 uint64_t SONameOffset = 0;
1312 const char *StringTableBegin = nullptr;
1313 uint64_t StringTableSize = 0;
1314 for (const Elf_Dyn &Dyn : dynamic_table()) {
1315 switch (Dyn.d_tag) {
1318 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr()));
1320 case ELF::DT_GNU_HASH:
1322 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr()));
1324 case ELF::DT_STRTAB:
1325 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr());
1328 StringTableSize = Dyn.getVal();
1330 case ELF::DT_SYMTAB:
1331 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr());
1332 DynSymRegion.EntSize = sizeof(Elf_Sym);
1335 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr());
1337 case ELF::DT_RELASZ:
1338 DynRelaRegion.Size = Dyn.getVal();
1340 case ELF::DT_RELAENT:
1341 DynRelaRegion.EntSize = Dyn.getVal();
1343 case ELF::DT_SONAME:
1344 SONameOffset = Dyn.getVal();
1347 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1350 DynRelRegion.Size = Dyn.getVal();
1352 case ELF::DT_RELENT:
1353 DynRelRegion.EntSize = Dyn.getVal();
1355 case ELF::DT_PLTREL:
1356 if (Dyn.getVal() == DT_REL)
1357 DynPLTRelRegion.EntSize = sizeof(Elf_Rel);
1358 else if (Dyn.getVal() == DT_RELA)
1359 DynPLTRelRegion.EntSize = sizeof(Elf_Rela);
1361 reportError(Twine("unknown DT_PLTREL value of ") +
1362 Twine((uint64_t)Dyn.getVal()));
1364 case ELF::DT_JMPREL:
1365 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1367 case ELF::DT_PLTRELSZ:
1368 DynPLTRelRegion.Size = Dyn.getVal();
1372 if (StringTableBegin)
1373 DynamicStringTable = StringRef(StringTableBegin, StringTableSize);
1375 SOName = getDynamicString(SONameOffset);
1378 template <typename ELFT>
1379 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const {
1380 return DynRelRegion.getAsArrayRef<Elf_Rel>();
1383 template <typename ELFT>
1384 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const {
1385 return DynRelaRegion.getAsArrayRef<Elf_Rela>();
1388 template<class ELFT>
1389 void ELFDumper<ELFT>::printFileHeaders() {
1390 ELFDumperStyle->printFileHeaders(Obj);
1393 template<class ELFT>
1394 void ELFDumper<ELFT>::printSections() {
1395 ELFDumperStyle->printSections(Obj);
1398 template<class ELFT>
1399 void ELFDumper<ELFT>::printRelocations() {
1400 ELFDumperStyle->printRelocations(Obj);
1403 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() {
1404 ELFDumperStyle->printProgramHeaders(Obj);
1407 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() {
1408 ELFDumperStyle->printDynamicRelocations(Obj);
1411 template<class ELFT>
1412 void ELFDumper<ELFT>::printSymbols() {
1413 ELFDumperStyle->printSymbols(Obj);
1416 template<class ELFT>
1417 void ELFDumper<ELFT>::printDynamicSymbols() {
1418 ELFDumperStyle->printDynamicSymbols(Obj);
1421 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() {
1422 ELFDumperStyle->printHashHistogram(Obj);
1424 #define LLVM_READOBJ_TYPE_CASE(name) \
1425 case DT_##name: return #name
1427 static const char *getTypeString(uint64_t Type) {
1429 LLVM_READOBJ_TYPE_CASE(BIND_NOW);
1430 LLVM_READOBJ_TYPE_CASE(DEBUG);
1431 LLVM_READOBJ_TYPE_CASE(FINI);
1432 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
1433 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
1434 LLVM_READOBJ_TYPE_CASE(FLAGS);
1435 LLVM_READOBJ_TYPE_CASE(FLAGS_1);
1436 LLVM_READOBJ_TYPE_CASE(HASH);
1437 LLVM_READOBJ_TYPE_CASE(INIT);
1438 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
1439 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
1440 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
1441 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
1442 LLVM_READOBJ_TYPE_CASE(JMPREL);
1443 LLVM_READOBJ_TYPE_CASE(NEEDED);
1444 LLVM_READOBJ_TYPE_CASE(NULL);
1445 LLVM_READOBJ_TYPE_CASE(PLTGOT);
1446 LLVM_READOBJ_TYPE_CASE(PLTREL);
1447 LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
1448 LLVM_READOBJ_TYPE_CASE(REL);
1449 LLVM_READOBJ_TYPE_CASE(RELA);
1450 LLVM_READOBJ_TYPE_CASE(RELENT);
1451 LLVM_READOBJ_TYPE_CASE(RELSZ);
1452 LLVM_READOBJ_TYPE_CASE(RELAENT);
1453 LLVM_READOBJ_TYPE_CASE(RELASZ);
1454 LLVM_READOBJ_TYPE_CASE(RPATH);
1455 LLVM_READOBJ_TYPE_CASE(RUNPATH);
1456 LLVM_READOBJ_TYPE_CASE(SONAME);
1457 LLVM_READOBJ_TYPE_CASE(STRSZ);
1458 LLVM_READOBJ_TYPE_CASE(STRTAB);
1459 LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
1460 LLVM_READOBJ_TYPE_CASE(SYMENT);
1461 LLVM_READOBJ_TYPE_CASE(SYMTAB);
1462 LLVM_READOBJ_TYPE_CASE(TEXTREL);
1463 LLVM_READOBJ_TYPE_CASE(VERDEF);
1464 LLVM_READOBJ_TYPE_CASE(VERDEFNUM);
1465 LLVM_READOBJ_TYPE_CASE(VERNEED);
1466 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM);
1467 LLVM_READOBJ_TYPE_CASE(VERSYM);
1468 LLVM_READOBJ_TYPE_CASE(RELACOUNT);
1469 LLVM_READOBJ_TYPE_CASE(RELCOUNT);
1470 LLVM_READOBJ_TYPE_CASE(GNU_HASH);
1471 LLVM_READOBJ_TYPE_CASE(TLSDESC_PLT);
1472 LLVM_READOBJ_TYPE_CASE(TLSDESC_GOT);
1473 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION);
1474 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL);
1475 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS);
1476 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS);
1477 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO);
1478 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO);
1479 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO);
1480 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM);
1481 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP);
1482 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT);
1483 LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS);
1484 default: return "unknown";
1488 #undef LLVM_READOBJ_TYPE_CASE
1490 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
1491 { #enum, prefix##_##enum }
1493 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
1494 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
1495 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
1496 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
1497 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
1498 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
1501 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
1502 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW),
1503 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL),
1504 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP),
1505 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE),
1506 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR),
1507 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST),
1508 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN),
1509 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN),
1510 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT),
1511 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS),
1512 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE),
1513 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB),
1514 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP),
1515 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT),
1516 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE),
1517 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE),
1518 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT),
1519 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF),
1520 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS),
1521 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR),
1522 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED),
1523 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
1524 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
1525 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
1526 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
1529 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
1530 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
1531 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
1532 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
1533 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
1534 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
1535 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
1536 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
1537 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
1538 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
1539 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
1540 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
1541 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
1542 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
1543 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
1544 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
1545 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
1548 #undef LLVM_READOBJ_DT_FLAG_ENT
1550 template <typename T, typename TFlag>
1551 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
1552 typedef EnumEntry<TFlag> FlagEntry;
1553 typedef SmallVector<FlagEntry, 10> FlagVector;
1554 FlagVector SetFlags;
1556 for (const auto &Flag : Flags) {
1557 if (Flag.Value == 0)
1560 if ((Value & Flag.Value) == Flag.Value)
1561 SetFlags.push_back(Flag);
1564 for (const auto &Flag : SetFlags) {
1565 OS << Flag.Name << " ";
1569 template <class ELFT>
1570 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const {
1571 if (Value >= DynamicStringTable.size())
1572 reportError("Invalid dynamic string table reference");
1573 return StringRef(DynamicStringTable.data() + Value);
1576 template <class ELFT>
1577 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) {
1578 raw_ostream &OS = W.getOStream();
1581 if (Value == DT_REL) {
1584 } else if (Value == DT_RELA) {
1600 case DT_PREINIT_ARRAY:
1607 case DT_MIPS_BASE_ADDRESS:
1608 case DT_MIPS_GOTSYM:
1609 case DT_MIPS_RLD_MAP:
1610 case DT_MIPS_RLD_MAP_REL:
1611 case DT_MIPS_PLTGOT:
1612 case DT_MIPS_OPTIONS:
1613 OS << format("0x%" PRIX64, Value);
1619 case DT_MIPS_RLD_VERSION:
1620 case DT_MIPS_LOCAL_GOTNO:
1621 case DT_MIPS_SYMTABNO:
1622 case DT_MIPS_UNREFEXTNO:
1632 case DT_INIT_ARRAYSZ:
1633 case DT_FINI_ARRAYSZ:
1634 case DT_PREINIT_ARRAYSZ:
1635 OS << Value << " (bytes)";
1638 OS << "SharedLibrary (" << getDynamicString(Value) << ")";
1641 OS << "LibrarySoname (" << getDynamicString(Value) << ")";
1645 OS << getDynamicString(Value);
1648 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
1651 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
1654 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS);
1657 OS << format("0x%" PRIX64, Value);
1662 template<class ELFT>
1663 void ELFDumper<ELFT>::printUnwindInfo() {
1664 W.startLine() << "UnwindInfo not implemented.\n";
1668 template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() {
1669 const unsigned Machine = Obj->getHeader()->e_machine;
1670 if (Machine == EM_ARM) {
1671 ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx(
1672 W, Obj, DotSymtabSec);
1673 return Ctx.PrintUnwindInformation();
1675 W.startLine() << "UnwindInfo not implemented.\n";
1679 template<class ELFT>
1680 void ELFDumper<ELFT>::printDynamicTable() {
1681 auto I = dynamic_table().begin();
1682 auto E = dynamic_table().end();
1688 while (I != E && E->getTag() == ELF::DT_NULL)
1690 if (E->getTag() != ELF::DT_NULL)
1694 ptrdiff_t Total = std::distance(I, E);
1698 raw_ostream &OS = W.getOStream();
1699 W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
1701 bool Is64 = ELFT::Is64Bits;
1704 << " Tag" << (Is64 ? " " : " ") << "Type"
1705 << " " << "Name/Value\n";
1707 const Elf_Dyn &Entry = *I;
1708 uintX_t Tag = Entry.getTag();
1710 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, true) << " "
1711 << format("%-21s", getTypeString(Tag));
1712 printValue(Tag, Entry.getVal());
1716 W.startLine() << "]\n";
1719 template<class ELFT>
1720 void ELFDumper<ELFT>::printNeededLibraries() {
1721 ListScope D(W, "NeededLibraries");
1723 typedef std::vector<StringRef> LibsTy;
1726 for (const auto &Entry : dynamic_table())
1727 if (Entry.d_tag == ELF::DT_NEEDED)
1728 Libs.push_back(getDynamicString(Entry.d_un.d_val));
1730 std::stable_sort(Libs.begin(), Libs.end());
1732 for (const auto &L : Libs) {
1733 outs() << " " << L << "\n";
1738 template <typename ELFT>
1739 void ELFDumper<ELFT>::printHashTable() {
1740 DictScope D(W, "HashTable");
1743 W.printNumber("Num Buckets", HashTable->nbucket);
1744 W.printNumber("Num Chains", HashTable->nchain);
1745 W.printList("Buckets", HashTable->buckets());
1746 W.printList("Chains", HashTable->chains());
1749 template <typename ELFT>
1750 void ELFDumper<ELFT>::printGnuHashTable() {
1751 DictScope D(W, "GnuHashTable");
1754 W.printNumber("Num Buckets", GnuHashTable->nbuckets);
1755 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx);
1756 W.printNumber("Num Mask Words", GnuHashTable->maskwords);
1757 W.printNumber("Shift Count", GnuHashTable->shift2);
1758 W.printHexList("Bloom Filter", GnuHashTable->filter());
1759 W.printList("Buckets", GnuHashTable->buckets());
1760 Elf_Sym_Range Syms = dynamic_symbols();
1761 unsigned NumSyms = std::distance(Syms.begin(), Syms.end());
1763 reportError("No dynamic symbol section");
1764 W.printHexList("Values", GnuHashTable->values(NumSyms));
1767 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() {
1768 outs() << "LoadName: " << SOName << '\n';
1771 template <class ELFT>
1772 void ELFDumper<ELFT>::printAttributes() {
1773 W.startLine() << "Attributes not implemented.\n";
1777 template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() {
1778 if (Obj->getHeader()->e_machine != EM_ARM) {
1779 W.startLine() << "Attributes not implemented.\n";
1783 DictScope BA(W, "BuildAttributes");
1784 for (const ELFO::Elf_Shdr &Sec : Obj->sections()) {
1785 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES)
1788 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec));
1789 if (Contents[0] != ARMBuildAttrs::Format_Version) {
1790 errs() << "unrecognised FormatVersion: 0x" << utohexstr(Contents[0])
1795 W.printHex("FormatVersion", Contents[0]);
1796 if (Contents.size() == 1)
1799 ARMAttributeParser(W).Parse(Contents);
1805 template <class ELFT> class MipsGOTParser {
1807 typedef object::ELFFile<ELFT> ELFO;
1808 typedef typename ELFO::Elf_Shdr Elf_Shdr;
1809 typedef typename ELFO::Elf_Sym Elf_Sym;
1810 typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range;
1811 typedef typename ELFO::Elf_Addr GOTEntry;
1812 typedef typename ELFO::Elf_Rel Elf_Rel;
1813 typedef typename ELFO::Elf_Rela Elf_Rela;
1815 MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1816 Elf_Dyn_Range DynTable, ScopedPrinter &W);
1822 ELFDumper<ELFT> *Dumper;
1825 llvm::Optional<uint64_t> DtPltGot;
1826 llvm::Optional<uint64_t> DtLocalGotNum;
1827 llvm::Optional<uint64_t> DtGotSym;
1828 llvm::Optional<uint64_t> DtMipsPltGot;
1829 llvm::Optional<uint64_t> DtJmpRel;
1831 std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const;
1832 const GOTEntry *makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum);
1834 void printGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1835 const GOTEntry *It);
1836 void printGlobalGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1837 const GOTEntry *It, const Elf_Sym *Sym,
1838 StringRef StrTable, bool IsDynamic);
1839 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1840 const GOTEntry *It, StringRef Purpose);
1841 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1842 const GOTEntry *It, StringRef StrTable,
1843 const Elf_Sym *Sym);
1847 template <class ELFT>
1848 MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1849 Elf_Dyn_Range DynTable, ScopedPrinter &W)
1850 : Dumper(Dumper), Obj(Obj), W(W) {
1851 for (const auto &Entry : DynTable) {
1852 switch (Entry.getTag()) {
1853 case ELF::DT_PLTGOT:
1854 DtPltGot = Entry.getVal();
1856 case ELF::DT_MIPS_LOCAL_GOTNO:
1857 DtLocalGotNum = Entry.getVal();
1859 case ELF::DT_MIPS_GOTSYM:
1860 DtGotSym = Entry.getVal();
1862 case ELF::DT_MIPS_PLTGOT:
1863 DtMipsPltGot = Entry.getVal();
1865 case ELF::DT_JMPREL:
1866 DtJmpRel = Entry.getVal();
1872 template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() {
1873 // See "Global Offset Table" in Chapter 5 in the following document
1874 // for detailed GOT description.
1875 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
1877 W.startLine() << "Cannot find PLTGOT dynamic table tag.\n";
1880 if (!DtLocalGotNum) {
1881 W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n";
1885 W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n";
1889 StringRef StrTable = Dumper->getDynamicStringTable();
1890 const Elf_Sym *DynSymBegin = Dumper->dynamic_symbols().begin();
1891 const Elf_Sym *DynSymEnd = Dumper->dynamic_symbols().end();
1892 std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd));
1894 if (*DtGotSym > DynSymTotal)
1895 report_fatal_error("MIPS_GOTSYM exceeds a number of dynamic symbols");
1897 std::size_t GlobalGotNum = DynSymTotal - *DtGotSym;
1899 if (*DtLocalGotNum + GlobalGotNum == 0) {
1900 W.startLine() << "GOT is empty.\n";
1904 const Elf_Shdr *GOTShdr = findNotEmptySectionByAddress(Obj, *DtPltGot);
1906 report_fatal_error("There is no not empty GOT section at 0x" +
1907 Twine::utohexstr(*DtPltGot));
1909 ArrayRef<uint8_t> GOT = unwrapOrError(Obj->getSectionContents(GOTShdr));
1911 if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(GOT))
1912 report_fatal_error("Number of GOT entries exceeds the size of GOT section");
1914 const GOTEntry *GotBegin = makeGOTIter(GOT, 0);
1915 const GOTEntry *GotLocalEnd = makeGOTIter(GOT, *DtLocalGotNum);
1916 const GOTEntry *It = GotBegin;
1918 DictScope GS(W, "Primary GOT");
1920 W.printHex("Canonical gp value", GOTShdr->sh_addr + 0x7ff0);
1922 ListScope RS(W, "Reserved entries");
1925 DictScope D(W, "Entry");
1926 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
1927 W.printString("Purpose", StringRef("Lazy resolver"));
1930 if (It != GotLocalEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) {
1931 DictScope D(W, "Entry");
1932 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
1933 W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
1937 ListScope LS(W, "Local entries");
1938 for (; It != GotLocalEnd; ++It) {
1939 DictScope D(W, "Entry");
1940 printGotEntry(GOTShdr->sh_addr, GotBegin, It);
1944 ListScope GS(W, "Global entries");
1946 const GOTEntry *GotGlobalEnd =
1947 makeGOTIter(GOT, *DtLocalGotNum + GlobalGotNum);
1948 const Elf_Sym *GotDynSym = DynSymBegin + *DtGotSym;
1949 for (; It != GotGlobalEnd; ++It) {
1950 DictScope D(W, "Entry");
1951 printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++, StrTable,
1956 std::size_t SpecGotNum = getGOTTotal(GOT) - *DtLocalGotNum - GlobalGotNum;
1957 W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum));
1960 template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() {
1961 if (!DtMipsPltGot) {
1962 W.startLine() << "Cannot find MIPS_PLTGOT dynamic table tag.\n";
1966 W.startLine() << "Cannot find JMPREL dynamic table tag.\n";
1970 const Elf_Shdr *PLTShdr = findNotEmptySectionByAddress(Obj, *DtMipsPltGot);
1972 report_fatal_error("There is no not empty PLTGOT section at 0x " +
1973 Twine::utohexstr(*DtMipsPltGot));
1974 ArrayRef<uint8_t> PLT = unwrapOrError(Obj->getSectionContents(PLTShdr));
1976 const Elf_Shdr *PLTRelShdr = findNotEmptySectionByAddress(Obj, *DtJmpRel);
1978 report_fatal_error("There is no not empty RELPLT section at 0x" +
1979 Twine::utohexstr(*DtJmpRel));
1980 const Elf_Shdr *SymTable =
1981 unwrapOrError(Obj->getSection(PLTRelShdr->sh_link));
1982 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTable));
1984 const GOTEntry *PLTBegin = makeGOTIter(PLT, 0);
1985 const GOTEntry *PLTEnd = makeGOTIter(PLT, getGOTTotal(PLT));
1986 const GOTEntry *It = PLTBegin;
1988 DictScope GS(W, "PLT GOT");
1990 ListScope RS(W, "Reserved entries");
1991 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "PLT lazy resolver");
1993 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "Module pointer");
1996 ListScope GS(W, "Entries");
1998 switch (PLTRelShdr->sh_type) {
2000 for (const Elf_Rel *RI = Obj->rel_begin(PLTRelShdr),
2001 *RE = Obj->rel_end(PLTRelShdr);
2002 RI != RE && It != PLTEnd; ++RI, ++It) {
2003 const Elf_Sym *Sym = Obj->getRelocationSymbol(&*RI, SymTable);
2004 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym);
2008 for (const Elf_Rela *RI = Obj->rela_begin(PLTRelShdr),
2009 *RE = Obj->rela_end(PLTRelShdr);
2010 RI != RE && It != PLTEnd; ++RI, ++It) {
2011 const Elf_Sym *Sym = Obj->getRelocationSymbol(&*RI, SymTable);
2012 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym);
2019 template <class ELFT>
2020 std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const {
2021 return GOT.size() / sizeof(GOTEntry);
2024 template <class ELFT>
2025 const typename MipsGOTParser<ELFT>::GOTEntry *
2026 MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) {
2027 const char *Data = reinterpret_cast<const char *>(GOT.data());
2028 return reinterpret_cast<const GOTEntry *>(Data + EntryNum * sizeof(GOTEntry));
2031 template <class ELFT>
2032 void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr,
2033 const GOTEntry *BeginIt,
2034 const GOTEntry *It) {
2035 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2036 W.printHex("Address", GotAddr + Offset);
2037 W.printNumber("Access", Offset - 0x7ff0);
2038 W.printHex("Initial", *It);
2041 template <class ELFT>
2042 void MipsGOTParser<ELFT>::printGlobalGotEntry(
2043 uint64_t GotAddr, const GOTEntry *BeginIt, const GOTEntry *It,
2044 const Elf_Sym *Sym, StringRef StrTable, bool IsDynamic) {
2045 printGotEntry(GotAddr, BeginIt, It);
2047 W.printHex("Value", Sym->st_value);
2048 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
2050 unsigned SectionIndex = 0;
2051 StringRef SectionName;
2052 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(),
2053 Dumper->getShndxTable(), SectionName, SectionIndex);
2054 W.printHex("Section", SectionName, SectionIndex);
2056 std::string FullSymbolName =
2057 Dumper->getFullSymbolName(Sym, StrTable, IsDynamic);
2058 W.printNumber("Name", FullSymbolName, Sym->st_name);
2061 template <class ELFT>
2062 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
2063 const GOTEntry *BeginIt,
2064 const GOTEntry *It, StringRef Purpose) {
2065 DictScope D(W, "Entry");
2066 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2067 W.printHex("Address", PLTAddr + Offset);
2068 W.printHex("Initial", *It);
2069 W.printString("Purpose", Purpose);
2072 template <class ELFT>
2073 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
2074 const GOTEntry *BeginIt,
2075 const GOTEntry *It, StringRef StrTable,
2076 const Elf_Sym *Sym) {
2077 DictScope D(W, "Entry");
2078 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2079 W.printHex("Address", PLTAddr + Offset);
2080 W.printHex("Initial", *It);
2081 W.printHex("Value", Sym->st_value);
2082 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
2084 unsigned SectionIndex = 0;
2085 StringRef SectionName;
2086 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(),
2087 Dumper->getShndxTable(), SectionName, SectionIndex);
2088 W.printHex("Section", SectionName, SectionIndex);
2090 std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true);
2091 W.printNumber("Name", FullSymbolName, Sym->st_name);
2094 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
2095 if (Obj->getHeader()->e_machine != EM_MIPS) {
2096 W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n";
2100 MipsGOTParser<ELFT> GOTParser(this, Obj, dynamic_table(), W);
2101 GOTParser.parseGOT();
2102 GOTParser.parsePLT();
2105 static const EnumEntry<unsigned> ElfMipsISAExtType[] = {
2106 {"None", Mips::AFL_EXT_NONE},
2107 {"Broadcom SB-1", Mips::AFL_EXT_SB1},
2108 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON},
2109 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2},
2110 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP},
2111 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3},
2112 {"LSI R4010", Mips::AFL_EXT_4010},
2113 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E},
2114 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F},
2115 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A},
2116 {"MIPS R4650", Mips::AFL_EXT_4650},
2117 {"MIPS R5900", Mips::AFL_EXT_5900},
2118 {"MIPS R10000", Mips::AFL_EXT_10000},
2119 {"NEC VR4100", Mips::AFL_EXT_4100},
2120 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111},
2121 {"NEC VR4120", Mips::AFL_EXT_4120},
2122 {"NEC VR5400", Mips::AFL_EXT_5400},
2123 {"NEC VR5500", Mips::AFL_EXT_5500},
2124 {"RMI Xlr", Mips::AFL_EXT_XLR},
2125 {"Toshiba R3900", Mips::AFL_EXT_3900}
2128 static const EnumEntry<unsigned> ElfMipsASEFlags[] = {
2129 {"DSP", Mips::AFL_ASE_DSP},
2130 {"DSPR2", Mips::AFL_ASE_DSPR2},
2131 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA},
2132 {"MCU", Mips::AFL_ASE_MCU},
2133 {"MDMX", Mips::AFL_ASE_MDMX},
2134 {"MIPS-3D", Mips::AFL_ASE_MIPS3D},
2135 {"MT", Mips::AFL_ASE_MT},
2136 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS},
2137 {"VZ", Mips::AFL_ASE_VIRT},
2138 {"MSA", Mips::AFL_ASE_MSA},
2139 {"MIPS16", Mips::AFL_ASE_MIPS16},
2140 {"microMIPS", Mips::AFL_ASE_MICROMIPS},
2141 {"XPA", Mips::AFL_ASE_XPA}
2144 static const EnumEntry<unsigned> ElfMipsFpABIType[] = {
2145 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY},
2146 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE},
2147 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE},
2148 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT},
2149 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)",
2150 Mips::Val_GNU_MIPS_ABI_FP_OLD_64},
2151 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX},
2152 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64},
2153 {"Hard float compat (32-bit CPU, 64-bit FPU)",
2154 Mips::Val_GNU_MIPS_ABI_FP_64A}
2157 static const EnumEntry<unsigned> ElfMipsFlags1[] {
2158 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG},
2161 static int getMipsRegisterSize(uint8_t Flag) {
2163 case Mips::AFL_REG_NONE:
2165 case Mips::AFL_REG_32:
2167 case Mips::AFL_REG_64:
2169 case Mips::AFL_REG_128:
2176 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() {
2177 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags");
2179 W.startLine() << "There is no .MIPS.abiflags section in the file.\n";
2182 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2183 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) {
2184 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n";
2188 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data());
2190 raw_ostream &OS = W.getOStream();
2191 DictScope GS(W, "MIPS ABI Flags");
2193 W.printNumber("Version", Flags->version);
2194 W.startLine() << "ISA: ";
2195 if (Flags->isa_rev <= 1)
2196 OS << format("MIPS%u", Flags->isa_level);
2198 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev);
2200 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType));
2201 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags));
2202 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType));
2203 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size));
2204 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size));
2205 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size));
2206 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1));
2207 W.printHex("Flags 2", Flags->flags2);
2210 template <class ELFT>
2211 static void printMipsReginfoData(ScopedPrinter &W,
2212 const Elf_Mips_RegInfo<ELFT> &Reginfo) {
2213 W.printHex("GP", Reginfo.ri_gp_value);
2214 W.printHex("General Mask", Reginfo.ri_gprmask);
2215 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]);
2216 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]);
2217 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]);
2218 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]);
2221 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() {
2222 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo");
2224 W.startLine() << "There is no .reginfo section in the file.\n";
2227 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2228 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) {
2229 W.startLine() << "The .reginfo section has a wrong size.\n";
2233 DictScope GS(W, "MIPS RegInfo");
2234 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data());
2235 printMipsReginfoData(W, *Reginfo);
2238 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() {
2239 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options");
2241 W.startLine() << "There is no .MIPS.options section in the file.\n";
2245 DictScope GS(W, "MIPS Options");
2247 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2248 while (!Sec.empty()) {
2249 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) {
2250 W.startLine() << "The .MIPS.options section has a wrong size.\n";
2253 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data());
2254 DictScope GS(W, getElfMipsOptionsOdkType(O->kind));
2257 printMipsReginfoData(W, O->getRegInfo());
2260 W.startLine() << "Unsupported MIPS options tag.\n";
2263 Sec = Sec.slice(O->size);
2267 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const {
2268 const Elf_Shdr *StackMapSection = nullptr;
2269 for (const auto &Sec : Obj->sections()) {
2270 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2271 if (Name == ".llvm_stackmaps") {
2272 StackMapSection = &Sec;
2277 if (!StackMapSection)
2280 StringRef StackMapContents;
2281 ArrayRef<uint8_t> StackMapContentsArray =
2282 unwrapOrError(Obj->getSectionContents(StackMapSection));
2284 prettyPrintStackMap(llvm::outs(), StackMapV1Parser<ELFT::TargetEndianness>(
2285 StackMapContentsArray));
2288 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() {
2289 ELFDumperStyle->printGroupSections(Obj);
2292 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1,
2296 OS.PadToColumn(37u);
2301 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
2302 const Elf_Ehdr *e = Obj->getHeader();
2303 OS << "ELF Header:\n";
2306 for (int i = 0; i < ELF::EI_NIDENT; i++)
2307 OS << format(" %02x", static_cast<int>(e->e_ident[i]));
2309 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
2310 printFields(OS, "Class:", Str);
2311 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding));
2312 printFields(OS, "Data:", Str);
2315 OS.PadToColumn(37u);
2316 OS << to_hexString(e->e_ident[ELF::EI_VERSION]);
2317 if (e->e_version == ELF::EV_CURRENT)
2320 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI));
2321 printFields(OS, "OS/ABI:", Str);
2322 Str = "0x" + to_hexString(e->e_version);
2323 Str = to_hexString(e->e_ident[ELF::EI_ABIVERSION]);
2324 printFields(OS, "ABI Version:", Str);
2325 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType));
2326 printFields(OS, "Type:", Str);
2327 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType));
2328 printFields(OS, "Machine:", Str);
2329 Str = "0x" + to_hexString(e->e_version);
2330 printFields(OS, "Version:", Str);
2331 Str = "0x" + to_hexString(e->e_entry);
2332 printFields(OS, "Entry point address:", Str);
2333 Str = to_string(e->e_phoff) + " (bytes into file)";
2334 printFields(OS, "Start of program headers:", Str);
2335 Str = to_string(e->e_shoff) + " (bytes into file)";
2336 printFields(OS, "Start of section headers:", Str);
2337 Str = "0x" + to_hexString(e->e_flags);
2338 printFields(OS, "Flags:", Str);
2339 Str = to_string(e->e_ehsize) + " (bytes)";
2340 printFields(OS, "Size of this header:", Str);
2341 Str = to_string(e->e_phentsize) + " (bytes)";
2342 printFields(OS, "Size of program headers:", Str);
2343 Str = to_string(e->e_phnum);
2344 printFields(OS, "Number of program headers:", Str);
2345 Str = to_string(e->e_shentsize) + " (bytes)";
2346 printFields(OS, "Size of section headers:", Str);
2347 Str = to_string(e->e_shnum);
2348 printFields(OS, "Number of section headers:", Str);
2349 Str = to_string(e->e_shstrndx);
2350 printFields(OS, "Section header string table index:", Str);
2353 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) {
2354 uint32_t SectionIndex = 0;
2355 bool HasGroups = false;
2356 for (const Elf_Shdr &Sec : Obj->sections()) {
2357 if (Sec.sh_type == ELF::SHT_GROUP) {
2359 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
2360 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
2361 const Elf_Sym *Signature =
2362 Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info);
2363 ArrayRef<Elf_Word> Data = unwrapOrError(
2364 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
2365 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2366 OS << "\n" << getGroupType(Data[0]) << " group section ["
2367 << format_decimal(SectionIndex, 5) << "] `" << Name << "' ["
2368 << StrTable.data() + Signature->st_name << "] contains "
2369 << (Data.size() - 1) << " sections:\n"
2370 << " [Index] Name\n";
2371 for (auto &Ndx : Data.slice(1)) {
2372 auto Sec = unwrapOrError(Obj->getSection(Ndx));
2373 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
2374 OS << " [" << format_decimal(Ndx, 5) << "] " << Name
2381 OS << "There are no section groups in this file.\n";
2384 template <class ELFT>
2385 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
2386 const Elf_Rela &R, bool IsRela) {
2387 std::string Offset, Info, Addend = "", Value;
2388 SmallString<32> RelocName;
2389 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
2390 StringRef TargetName;
2391 const Elf_Sym *Sym = nullptr;
2392 unsigned Width = ELFT::Is64Bits ? 16 : 8;
2393 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2395 // First two fields are bit width dependent. The rest of them are after are
2397 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
2398 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
2399 Sym = Obj->getRelocationSymbol(&R, SymTab);
2400 if (Sym && Sym->getType() == ELF::STT_SECTION) {
2401 const Elf_Shdr *Sec = unwrapOrError(
2402 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
2403 TargetName = unwrapOrError(Obj->getSectionName(Sec));
2405 TargetName = unwrapOrError(Sym->getName(StrTable));
2408 if (Sym && IsRela) {
2415 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
2416 Info = to_string(format_hex_no_prefix(R.r_info, Width));
2418 int64_t RelAddend = R.r_addend;
2420 Addend += to_hexString(std::abs(RelAddend), false);
2423 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
2425 Fields[0].Str = Offset;
2426 Fields[1].Str = Info;
2427 Fields[2].Str = RelocName;
2428 Fields[3].Str = Value;
2429 Fields[4].Str = TargetName;
2430 for (auto &field : Fields)
2436 static inline void printRelocHeader(raw_ostream &OS, bool Is64, bool IsRela) {
2438 OS << " Offset Info Type"
2439 << " Symbol's Value Symbol's Name";
2441 OS << " Offset Info Type Sym. Value "
2444 OS << (IsRela ? " + Addend" : "");
2448 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) {
2449 bool HasRelocSections = false;
2450 for (const Elf_Shdr &Sec : Obj->sections()) {
2451 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA)
2453 HasRelocSections = true;
2454 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2455 unsigned Entries = Sec.getEntityCount();
2456 uintX_t Offset = Sec.sh_offset;
2457 OS << "\nRelocation section '" << Name << "' at offset 0x"
2458 << to_hexString(Offset, false) << " contains " << Entries
2460 printRelocHeader(OS, ELFT::Is64Bits, (Sec.sh_type == ELF::SHT_RELA));
2461 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link));
2462 if (Sec.sh_type == ELF::SHT_REL) {
2463 for (const auto &R : Obj->rels(&Sec)) {
2465 Rela.r_offset = R.r_offset;
2466 Rela.r_info = R.r_info;
2468 printRelocation(Obj, SymTab, Rela, false);
2471 for (const auto &R : Obj->relas(&Sec))
2472 printRelocation(Obj, SymTab, R, true);
2475 if (!HasRelocSections)
2476 OS << "\nThere are no relocations in this file.\n";
2479 std::string getSectionTypeString(unsigned Arch, unsigned Type) {
2480 using namespace ELF;
2486 case SHT_ARM_PREEMPTMAP:
2487 return "ARM_PREEMPTMAP";
2488 case SHT_ARM_ATTRIBUTES:
2489 return "ARM_ATTRIBUTES";
2490 case SHT_ARM_DEBUGOVERLAY:
2491 return "ARM_DEBUGOVERLAY";
2492 case SHT_ARM_OVERLAYSECTION:
2493 return "ARM_OVERLAYSECTION";
2497 case SHT_X86_64_UNWIND:
2498 return "X86_64_UNWIND";
2501 case EM_MIPS_RS3_LE:
2503 case SHT_MIPS_REGINFO:
2504 return "MIPS_REGINFO";
2505 case SHT_MIPS_OPTIONS:
2506 return "MIPS_OPTIONS";
2507 case SHT_MIPS_ABIFLAGS:
2508 return "MIPS_ABIFLAGS";
2536 case SHT_INIT_ARRAY:
2537 return "INIT_ARRAY";
2538 case SHT_FINI_ARRAY:
2539 return "FINI_ARRAY";
2540 case SHT_PREINIT_ARRAY:
2541 return "PREINIT_ARRAY";
2544 case SHT_SYMTAB_SHNDX:
2545 return "SYMTAB SECTION INDICES";
2546 // FIXME: Parse processor specific GNU attributes
2547 case SHT_GNU_ATTRIBUTES:
2548 return "ATTRIBUTES";
2551 case SHT_GNU_verdef:
2553 case SHT_GNU_verneed:
2555 case SHT_GNU_versym:
2563 template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) {
2564 size_t SectionIndex = 0;
2565 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize,
2570 if (ELFT::Is64Bits) {
2577 OS << "There are " << to_string(Obj->getHeader()->e_shnum)
2578 << " section headers, starting at offset "
2579 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n";
2580 OS << "Section Headers:\n";
2581 Field Fields[11] = {{"[Nr]", 2},
2586 {"Size", 65 - Bias},
2592 for (auto &f : Fields)
2596 for (const Elf_Shdr &Sec : Obj->sections()) {
2597 Number = to_string(SectionIndex);
2598 Fields[0].Str = Number;
2599 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec));
2600 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type);
2601 Fields[2].Str = Type;
2602 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width));
2603 Fields[3].Str = Address;
2604 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6));
2605 Fields[4].Str = Offset;
2606 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6));
2607 Fields[5].Str = Size;
2608 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2));
2609 Fields[6].Str = EntrySize;
2610 Flags = getGNUFlags(Sec.sh_flags);
2611 Fields[7].Str = Flags;
2612 Link = to_string(Sec.sh_link);
2613 Fields[8].Str = Link;
2614 Info = to_string(Sec.sh_info);
2615 Fields[9].Str = Info;
2616 Alignment = to_string(Sec.sh_addralign);
2617 Fields[10].Str = Alignment;
2618 OS.PadToColumn(Fields[0].Column);
2619 OS << "[" << right_justify(Fields[0].Str, 2) << "]";
2620 for (int i = 1; i < 7; i++)
2621 printField(Fields[i]);
2622 OS.PadToColumn(Fields[7].Column);
2623 OS << right_justify(Fields[7].Str, 3);
2624 OS.PadToColumn(Fields[8].Column);
2625 OS << right_justify(Fields[8].Str, 2);
2626 OS.PadToColumn(Fields[9].Column);
2627 OS << right_justify(Fields[9].Str, 3);
2628 OS.PadToColumn(Fields[10].Column);
2629 OS << right_justify(Fields[10].Str, 2);
2633 OS << "Key to Flags:\n"
2634 << " W (write), A (alloc), X (execute), M (merge), S (strings), l "
2636 << " I (info), L (link order), G (group), T (TLS), E (exclude),\
2638 << " O (extra OS processing required) o (OS specific),\
2639 p (processor specific)\n";
2642 template <class ELFT>
2643 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name,
2646 OS << "\nSymbol table '" << Name << "' contains " << Entries
2649 OS << "\n Symbol table for image:\n";
2652 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2654 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2657 template <class ELFT>
2658 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj,
2659 const Elf_Sym *Symbol,
2660 const Elf_Sym *FirstSym) {
2661 unsigned SectionIndex = Symbol->st_shndx;
2662 switch (SectionIndex) {
2663 case ELF::SHN_UNDEF:
2667 case ELF::SHN_COMMON:
2669 case ELF::SHN_XINDEX:
2670 SectionIndex = Obj->getExtendedSymbolTableIndex(
2671 Symbol, FirstSym, this->dumper()->getShndxTable());
2674 // Processor specific
2675 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC)
2676 return std::string("PRC[0x") +
2677 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2679 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS)
2680 return std::string("OS[0x") +
2681 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2682 // Architecture reserved:
2683 if (SectionIndex >= ELF::SHN_LORESERVE &&
2684 SectionIndex <= ELF::SHN_HIRESERVE)
2685 return std::string("RSV[0x") +
2686 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2687 // A normal section with an index
2688 return to_string(format_decimal(SectionIndex, 3));
2692 template <class ELFT>
2693 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
2694 const Elf_Sym *FirstSym, StringRef StrTable,
2697 static bool Dynamic = true;
2700 // If this function was called with a different value from IsDynamic
2701 // from last call, happens when we move from dynamic to static symbol
2702 // table, "Num" field should be reset.
2703 if (!Dynamic != !IsDynamic) {
2707 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section;
2709 if (ELFT::Is64Bits) {
2716 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias,
2717 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias};
2718 Num = to_string(format_decimal(Idx++, 6)) + ":";
2719 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width));
2720 Size = to_string(format_decimal(Symbol->st_size, 5));
2721 unsigned char SymbolType = Symbol->getType();
2722 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
2723 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
2724 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
2726 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
2727 unsigned Vis = Symbol->getVisibility();
2728 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
2729 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities));
2730 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym);
2731 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
2732 Fields[0].Str = Num;
2733 Fields[1].Str = Value;
2734 Fields[2].Str = Size;
2735 Fields[3].Str = Type;
2736 Fields[4].Str = Binding;
2737 Fields[5].Str = Visibility;
2738 Fields[6].Str = Section;
2739 Fields[7].Str = Name;
2740 for (auto &Entry : Fields)
2745 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) {
2746 this->dumper()->printSymbolsHelper(true);
2747 this->dumper()->printSymbolsHelper(false);
2750 template <class ELFT>
2751 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
2752 this->dumper()->printSymbolsHelper(true);
2755 static inline std::string printPhdrFlags(unsigned Flag) {
2757 Str = (Flag & PF_R) ? "R" : " ";
2758 Str += (Flag & PF_W) ? "W" : " ";
2759 Str += (Flag & PF_X) ? "E" : " ";
2763 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO
2764 // PT_TLS must only have SHF_TLS sections
2765 template <class ELFT>
2766 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr,
2767 const Elf_Shdr &Sec) {
2768 return (((Sec.sh_flags & ELF::SHF_TLS) &&
2769 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) ||
2770 (Phdr.p_type == ELF::PT_GNU_RELRO))) ||
2771 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS));
2774 // Non-SHT_NOBITS must have its offset inside the segment
2775 // Only non-zero section can be at end of segment
2776 template <class ELFT>
2777 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
2778 if (Sec.sh_type == ELF::SHT_NOBITS)
2781 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
2782 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
2784 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
2785 if (Sec.sh_offset >= Phdr.p_offset)
2786 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset)
2787 /*only non-zero sized sections at end*/ &&
2788 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz));
2792 // SHF_ALLOC must have VMA inside segment
2793 // Only non-zero section can be at end of segment
2794 template <class ELFT>
2795 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
2796 if (!(Sec.sh_flags & ELF::SHF_ALLOC))
2799 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
2800 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
2802 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
2803 if (Sec.sh_addr >= Phdr.p_vaddr)
2804 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) &&
2805 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz));
2809 // No section with zero size must be at start or end of PT_DYNAMIC
2810 template <class ELFT>
2811 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
2812 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0)
2814 // Is section within the phdr both based on offset and VMA ?
2815 return ((Sec.sh_type == ELF::SHT_NOBITS) ||
2816 (Sec.sh_offset > Phdr.p_offset &&
2817 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) &&
2818 (!(Sec.sh_flags & ELF::SHF_ALLOC) ||
2819 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz));
2822 template <class ELFT>
2823 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
2824 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2825 unsigned Width = ELFT::Is64Bits ? 18 : 10;
2826 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7;
2827 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align;
2829 const Elf_Ehdr *Header = Obj->getHeader();
2830 Field Fields[8] = {2, 17, 26, 37 + Bias,
2831 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias};
2832 OS << "\nElf file type is "
2833 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n"
2834 << "Entry point " << format_hex(Header->e_entry, 1) << "\n"
2835 << "There are " << Header->e_phnum << " program headers,"
2836 << " starting at offset " << Header->e_phoff << "\n\n"
2837 << "Program Headers:\n";
2839 OS << " Type Offset VirtAddr PhysAddr "
2840 << " FileSiz MemSiz Flg Align\n";
2842 OS << " Type Offset VirtAddr PhysAddr FileSiz "
2843 << "MemSiz Flg Align\n";
2844 for (const auto &Phdr : Obj->program_headers()) {
2845 Type = getElfPtType(Header->e_machine, Phdr.p_type);
2846 Offset = to_string(format_hex(Phdr.p_offset, 8));
2847 VMA = to_string(format_hex(Phdr.p_vaddr, Width));
2848 LMA = to_string(format_hex(Phdr.p_paddr, Width));
2849 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth));
2850 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth));
2851 Flag = printPhdrFlags(Phdr.p_flags);
2852 Align = to_string(format_hex(Phdr.p_align, 1));
2853 Fields[0].Str = Type;
2854 Fields[1].Str = Offset;
2855 Fields[2].Str = VMA;
2856 Fields[3].Str = LMA;
2857 Fields[4].Str = FileSz;
2858 Fields[5].Str = MemSz;
2859 Fields[6].Str = Flag;
2860 Fields[7].Str = Align;
2861 for (auto Field : Fields)
2863 if (Phdr.p_type == ELF::PT_INTERP) {
2864 OS << "\n [Requesting program interpreter: ";
2865 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]";
2869 OS << "\n Section to Segment mapping:\n Segment Sections...\n";
2871 for (const Elf_Phdr &Phdr : Obj->program_headers()) {
2872 std::string Sections;
2873 OS << format(" %2.2d ", Phnum++);
2874 for (const Elf_Shdr &Sec : Obj->sections()) {
2875 // Check if each section is in a segment and then print mapping.
2876 // readelf additionally makes sure it does not print zero sized sections
2877 // at end of segments and for PT_DYNAMIC both start and end of section
2878 // .tbss must only be shown in PT_TLS section.
2879 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) &&
2880 ((Sec.sh_flags & ELF::SHF_TLS) != 0) &&
2881 Phdr.p_type != ELF::PT_TLS;
2882 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) &&
2883 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) &&
2884 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL))
2885 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " ";
2887 OS << Sections << "\n";
2892 template <class ELFT>
2893 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R,
2895 SmallString<32> RelocName;
2896 StringRef SymbolName;
2897 unsigned Width = ELFT::Is64Bits ? 16 : 8;
2898 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2899 // First two fields are bit width dependent. The rest of them are after are
2901 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
2903 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL());
2904 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
2905 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
2907 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
2908 std::string Addend = "", Info, Offset, Value;
2909 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
2910 Info = to_string(format_hex_no_prefix(R.r_info, Width));
2911 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
2912 int64_t RelAddend = R.r_addend;
2913 if (SymbolName.size() && IsRela) {
2920 if (!SymbolName.size() && Sym->getValue() == 0)
2924 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1));
2927 Fields[0].Str = Offset;
2928 Fields[1].Str = Info;
2929 Fields[2].Str = RelocName.c_str();
2930 Fields[3].Str = Value;
2931 Fields[4].Str = SymbolName;
2932 for (auto &Field : Fields)
2938 template <class ELFT>
2939 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
2940 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
2941 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
2942 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
2943 if (DynRelaRegion.Size > 0) {
2944 OS << "\n'RELA' relocation section at offset "
2945 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) -
2947 1) << " contains " << DynRelaRegion.Size << " bytes:\n";
2948 printRelocHeader(OS, ELFT::Is64Bits, true);
2949 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
2950 printDynamicRelocation(Obj, Rela, true);
2952 if (DynRelRegion.Size > 0) {
2953 OS << "\n'REL' relocation section at offset "
2954 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) -
2956 1) << " contains " << DynRelRegion.Size << " bytes:\n";
2957 printRelocHeader(OS, ELFT::Is64Bits, false);
2958 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
2960 Rela.r_offset = Rel.r_offset;
2961 Rela.r_info = Rel.r_info;
2963 printDynamicRelocation(Obj, Rela, false);
2966 if (DynPLTRelRegion.Size) {
2967 OS << "\n'PLT' relocation section at offset "
2968 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) -
2970 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n";
2972 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) {
2973 printRelocHeader(OS, ELFT::Is64Bits, true);
2974 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
2975 printDynamicRelocation(Obj, Rela, true);
2977 printRelocHeader(OS, ELFT::Is64Bits, false);
2978 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
2980 Rela.r_offset = Rel.r_offset;
2981 Rela.r_info = Rel.r_info;
2983 printDynamicRelocation(Obj, Rela, false);
2988 // Hash histogram shows statistics of how efficient the hash was for the
2989 // dynamic symbol table. The table shows number of hash buckets for different
2990 // lengths of chains as absolute number and percentage of the total buckets.
2991 // Additionally cumulative coverage of symbols for each set of buckets.
2992 template <class ELFT>
2993 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
2995 const Elf_Hash *HashTable = this->dumper()->getHashTable();
2996 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable();
2998 // Print histogram for .hash section
3000 size_t NBucket = HashTable->nbucket;
3001 size_t NChain = HashTable->nchain;
3002 ArrayRef<Elf_Word> Buckets = HashTable->buckets();
3003 ArrayRef<Elf_Word> Chains = HashTable->chains();
3004 size_t TotalSyms = 0;
3005 // If hash table is correct, we have at least chains with 0 length
3006 size_t MaxChain = 1;
3007 size_t CumulativeNonZero = 0;
3009 if (NChain == 0 || NBucket == 0)
3012 std::vector<size_t> ChainLen(NBucket, 0);
3013 // Go over all buckets and and note chain lengths of each bucket (total
3014 // unique chain lengths).
3015 for (size_t B = 0; B < NBucket; B++) {
3016 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C])
3017 if (MaxChain <= ++ChainLen[B])
3019 TotalSyms += ChainLen[B];
3025 std::vector<size_t> Count(MaxChain, 0) ;
3026 // Count how long is the chain for each bucket
3027 for (size_t B = 0; B < NBucket; B++)
3028 ++Count[ChainLen[B]];
3029 // Print Number of buckets with each chain lengths and their cumulative
3030 // coverage of the symbols
3031 OS << "Histogram for bucket list length (total of " << NBucket
3033 << " Length Number % of total Coverage\n";
3034 for (size_t I = 0; I < MaxChain; I++) {
3035 CumulativeNonZero += Count[I] * I;
3036 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3037 (Count[I] * 100.0) / NBucket,
3038 (CumulativeNonZero * 100.0) / TotalSyms);
3042 // Print histogram for .gnu.hash section
3044 size_t NBucket = GnuHashTable->nbuckets;
3045 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets();
3046 unsigned NumSyms = this->dumper()->dynamic_symbols().size();
3049 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms);
3050 size_t Symndx = GnuHashTable->symndx;
3051 size_t TotalSyms = 0;
3052 size_t MaxChain = 1;
3053 size_t CumulativeNonZero = 0;
3055 if (Chains.size() == 0 || NBucket == 0)
3058 std::vector<size_t> ChainLen(NBucket, 0);
3060 for (size_t B = 0; B < NBucket; B++) {
3064 for (size_t C = Buckets[B] - Symndx;
3065 C < Chains.size() && (Chains[C] & 1) == 0; C++)
3066 if (MaxChain < ++Len)
3076 std::vector<size_t> Count(MaxChain, 0) ;
3077 for (size_t B = 0; B < NBucket; B++)
3078 ++Count[ChainLen[B]];
3079 // Print Number of buckets with each chain lengths and their cumulative
3080 // coverage of the symbols
3081 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket
3083 << " Length Number % of total Coverage\n";
3084 for (size_t I = 0; I <MaxChain; I++) {
3085 CumulativeNonZero += Count[I] * I;
3086 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3087 (Count[I] * 100.0) / NBucket,
3088 (CumulativeNonZero * 100.0) / TotalSyms);
3093 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
3094 const Elf_Ehdr *e = Obj->getHeader();
3096 DictScope D(W, "ElfHeader");
3098 DictScope D(W, "Ident");
3099 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4));
3100 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
3101 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA],
3102 makeArrayRef(ElfDataEncoding));
3103 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]);
3105 // Handle architecture specific OS/ABI values.
3106 if (e->e_machine == ELF::EM_AMDGPU &&
3107 e->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA)
3108 W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA);
3110 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI],
3111 makeArrayRef(ElfOSABI));
3112 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]);
3113 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD));
3116 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType));
3117 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType));
3118 W.printNumber("Version", e->e_version);
3119 W.printHex("Entry", e->e_entry);
3120 W.printHex("ProgramHeaderOffset", e->e_phoff);
3121 W.printHex("SectionHeaderOffset", e->e_shoff);
3122 if (e->e_machine == EM_MIPS)
3123 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags),
3124 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
3125 unsigned(ELF::EF_MIPS_MACH));
3127 W.printFlags("Flags", e->e_flags);
3128 W.printNumber("HeaderSize", e->e_ehsize);
3129 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize);
3130 W.printNumber("ProgramHeaderCount", e->e_phnum);
3131 W.printNumber("SectionHeaderEntrySize", e->e_shentsize);
3132 W.printNumber("SectionHeaderCount", e->e_shnum);
3133 W.printNumber("StringTableSectionIndex", e->e_shstrndx);
3137 template <class ELFT>
3138 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) {
3139 DictScope Lists(W, "Groups");
3140 uint32_t SectionIndex = 0;
3141 bool HasGroups = false;
3142 for (const Elf_Shdr &Sec : Obj->sections()) {
3143 if (Sec.sh_type == ELF::SHT_GROUP) {
3145 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
3146 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
3147 const Elf_Sym *Sym = Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info);
3148 auto Data = unwrapOrError(
3149 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
3150 DictScope D(W, "Group");
3151 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3152 W.printNumber("Name", Name, Sec.sh_name);
3153 W.printNumber("Index", SectionIndex);
3154 W.printHex("Type", getGroupType(Data[0]), Data[0]);
3155 W.startLine() << "Signature: " << StrTable.data() + Sym->st_name << "\n";
3157 ListScope L(W, "Section(s) in group");
3159 while (Member < Data.size()) {
3160 auto Sec = unwrapOrError(Obj->getSection(Data[Member]));
3161 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
3162 W.startLine() << Name << " (" << Data[Member++] << ")\n";
3169 W.startLine() << "There are no group sections in the file.\n";
3172 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) {
3173 ListScope D(W, "Relocations");
3175 int SectionNumber = -1;
3176 for (const Elf_Shdr &Sec : Obj->sections()) {
3179 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA)
3182 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3184 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
3187 printRelocations(&Sec, Obj);
3190 W.startLine() << "}\n";
3194 template <class ELFT>
3195 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) {
3196 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link));
3198 switch (Sec->sh_type) {
3200 for (const Elf_Rel &R : Obj->rels(Sec)) {
3202 Rela.r_offset = R.r_offset;
3203 Rela.r_info = R.r_info;
3205 printRelocation(Obj, Rela, SymTab);
3209 for (const Elf_Rela &R : Obj->relas(Sec))
3210 printRelocation(Obj, R, SymTab);
3215 template <class ELFT>
3216 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel,
3217 const Elf_Shdr *SymTab) {
3218 SmallString<32> RelocName;
3219 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
3220 StringRef TargetName;
3221 const Elf_Sym *Sym = Obj->getRelocationSymbol(&Rel, SymTab);
3222 if (Sym && Sym->getType() == ELF::STT_SECTION) {
3223 const Elf_Shdr *Sec = unwrapOrError(
3224 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
3225 TargetName = unwrapOrError(Obj->getSectionName(Sec));
3227 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
3228 TargetName = unwrapOrError(Sym->getName(StrTable));
3231 if (opts::ExpandRelocs) {
3232 DictScope Group(W, "Relocation");
3233 W.printHex("Offset", Rel.r_offset);
3234 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
3235 W.printNumber("Symbol", TargetName.size() > 0 ? TargetName : "-",
3236 Rel.getSymbol(Obj->isMips64EL()));
3237 W.printHex("Addend", Rel.r_addend);
3239 raw_ostream &OS = W.startLine();
3240 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
3241 << (TargetName.size() > 0 ? TargetName : "-") << " "
3242 << W.hex(Rel.r_addend) << "\n";
3246 template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) {
3247 ListScope SectionsD(W, "Sections");
3249 int SectionIndex = -1;
3250 for (const Elf_Shdr &Sec : Obj->sections()) {
3253 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3255 DictScope SectionD(W, "Section");
3256 W.printNumber("Index", SectionIndex);
3257 W.printNumber("Name", Name, Sec.sh_name);
3259 getElfSectionType(Obj->getHeader()->e_machine, Sec.sh_type),
3261 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags),
3262 std::end(ElfSectionFlags));
3263 switch (Obj->getHeader()->e_machine) {
3265 SectionFlags.insert(SectionFlags.end(), std::begin(ElfAMDGPUSectionFlags),
3266 std::end(ElfAMDGPUSectionFlags));
3269 SectionFlags.insert(SectionFlags.end(),
3270 std::begin(ElfHexagonSectionFlags),
3271 std::end(ElfHexagonSectionFlags));
3274 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags),
3275 std::end(ElfMipsSectionFlags));
3278 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags),
3279 std::end(ElfX86_64SectionFlags));
3285 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags));
3286 W.printHex("Address", Sec.sh_addr);
3287 W.printHex("Offset", Sec.sh_offset);
3288 W.printNumber("Size", Sec.sh_size);
3289 W.printNumber("Link", Sec.sh_link);
3290 W.printNumber("Info", Sec.sh_info);
3291 W.printNumber("AddressAlignment", Sec.sh_addralign);
3292 W.printNumber("EntrySize", Sec.sh_entsize);
3294 if (opts::SectionRelocations) {
3295 ListScope D(W, "Relocations");
3296 printRelocations(&Sec, Obj);
3299 if (opts::SectionSymbols) {
3300 ListScope D(W, "Symbols");
3301 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec();
3302 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
3304 for (const Elf_Sym &Sym : Obj->symbols(Symtab)) {
3305 const Elf_Shdr *SymSec = unwrapOrError(
3306 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable()));
3308 printSymbol(Obj, &Sym, Obj->symbol_begin(Symtab), StrTable, false);
3312 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) {
3313 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec));
3314 W.printBinaryBlock("SectionData",
3315 StringRef((const char *)Data.data(), Data.size()));
3320 template <class ELFT>
3321 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
3322 const Elf_Sym *First, StringRef StrTable,
3324 unsigned SectionIndex = 0;
3325 StringRef SectionName;
3326 getSectionNameIndex(*Obj, Symbol, First, this->dumper()->getShndxTable(),
3327 SectionName, SectionIndex);
3328 std::string FullSymbolName =
3329 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
3330 unsigned char SymbolType = Symbol->getType();
3332 DictScope D(W, "Symbol");
3333 W.printNumber("Name", FullSymbolName, Symbol->st_name);
3334 W.printHex("Value", Symbol->st_value);
3335 W.printNumber("Size", Symbol->st_size);
3336 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
3337 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
3338 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
3339 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes));
3341 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes));
3342 if (Symbol->st_other == 0)
3343 // Usually st_other flag is zero. Do not pollute the output
3344 // by flags enumeration in that case.
3345 W.printNumber("Other", 0);
3347 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags),
3348 std::end(ElfSymOtherFlags));
3349 if (Obj->getHeader()->e_machine == EM_MIPS) {
3350 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16
3351 // flag overlapped with other ST_MIPS_xxx flags. So consider both
3352 // cases separately.
3353 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16)
3354 SymOtherFlags.insert(SymOtherFlags.end(),
3355 std::begin(ElfMips16SymOtherFlags),
3356 std::end(ElfMips16SymOtherFlags));
3358 SymOtherFlags.insert(SymOtherFlags.end(),
3359 std::begin(ElfMipsSymOtherFlags),
3360 std::end(ElfMipsSymOtherFlags));
3362 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u);
3364 W.printHex("Section", SectionName, SectionIndex);
3367 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) {
3368 ListScope Group(W, "Symbols");
3369 this->dumper()->printSymbolsHelper(false);
3372 template <class ELFT>
3373 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
3374 ListScope Group(W, "DynamicSymbols");
3375 this->dumper()->printSymbolsHelper(true);
3378 template <class ELFT>
3379 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3380 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3381 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3382 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3383 if (DynRelRegion.Size && DynRelaRegion.Size)
3384 report_fatal_error("There are both REL and RELA dynamic relocations");
3385 W.startLine() << "Dynamic Relocations {\n";
3387 if (DynRelaRegion.Size > 0)
3388 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3389 printDynamicRelocation(Obj, Rela);
3391 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3393 Rela.r_offset = Rel.r_offset;
3394 Rela.r_info = Rel.r_info;
3396 printDynamicRelocation(Obj, Rela);
3398 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela))
3399 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
3400 printDynamicRelocation(Obj, Rela);
3402 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
3404 Rela.r_offset = Rel.r_offset;
3405 Rela.r_info = Rel.r_info;
3407 printDynamicRelocation(Obj, Rela);
3410 W.startLine() << "}\n";
3413 template <class ELFT>
3414 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) {
3415 SmallString<32> RelocName;
3416 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
3417 StringRef SymbolName;
3418 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL());
3419 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
3421 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
3422 if (opts::ExpandRelocs) {
3423 DictScope Group(W, "Relocation");
3424 W.printHex("Offset", Rel.r_offset);
3425 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
3426 W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
3427 W.printHex("Addend", Rel.r_addend);
3429 raw_ostream &OS = W.startLine();
3430 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
3431 << (SymbolName.size() > 0 ? SymbolName : "-") << " "
3432 << W.hex(Rel.r_addend) << "\n";
3436 template <class ELFT>
3437 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
3438 ListScope L(W, "ProgramHeaders");
3440 for (const Elf_Phdr &Phdr : Obj->program_headers()) {
3441 DictScope P(W, "ProgramHeader");
3443 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type),
3445 W.printHex("Offset", Phdr.p_offset);
3446 W.printHex("VirtualAddress", Phdr.p_vaddr);
3447 W.printHex("PhysicalAddress", Phdr.p_paddr);
3448 W.printNumber("FileSize", Phdr.p_filesz);
3449 W.printNumber("MemSize", Phdr.p_memsz);
3450 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags));
3451 W.printNumber("Alignment", Phdr.p_align);
3454 template <class ELFT>
3455 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
3456 W.startLine() << "Hash Histogram not implemented!\n";