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 static const EnumEntry<unsigned> SymVersionFlags[] = {
524 {"Base", "BASE", VER_FLG_BASE},
525 {"Weak", "WEAK", VER_FLG_WEAK},
526 {"Info", "INFO", VER_FLG_INFO}};
528 template <typename ELFO, class ELFT>
529 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper,
531 const typename ELFO::Elf_Shdr *Sec,
533 typedef typename ELFO::Elf_Verdef VerDef;
534 typedef typename ELFO::Elf_Verdaux VerdAux;
536 DictScope SD(W, "SHT_GNU_verdef");
540 // The number of entries in the section SHT_GNU_verdef
541 // is determined by DT_VERDEFNUM tag.
542 unsigned VerDefsNum = 0;
543 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) {
544 if (Dyn.d_tag == DT_VERDEFNUM)
545 VerDefsNum = Dyn.d_un.d_val;
547 const uint8_t *SecStartAddress =
548 (const uint8_t *)Obj->base() + Sec->sh_offset;
549 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size;
550 const uint8_t *P = SecStartAddress;
551 const typename ELFO::Elf_Shdr *StrTab =
552 unwrapOrError(Obj->getSection(Sec->sh_link));
554 while (VerDefsNum--) {
555 if (P + sizeof(VerDef) > SecEndAddress)
556 report_fatal_error("invalid offset in the section");
558 auto *VD = reinterpret_cast<const VerDef *>(P);
559 DictScope Def(W, "Definition");
560 W.printNumber("Version", VD->vd_version);
561 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags));
562 W.printNumber("Index", VD->vd_ndx);
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)));
568 report_fatal_error("at least one definition string must exist");
570 report_fatal_error("more than one predecessor is not expected");
572 if (VD->vd_cnt == 2) {
573 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next;
574 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux);
575 W.printString("Predecessor",
576 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
584 template <typename ELFO, class ELFT>
585 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper,
587 const typename ELFO::Elf_Shdr *Sec,
589 typedef typename ELFO::Elf_Verneed VerNeed;
590 typedef typename ELFO::Elf_Vernaux VernAux;
592 DictScope SD(W, "SHT_GNU_verneed");
596 unsigned VerNeedNum = 0;
597 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table())
598 if (Dyn.d_tag == DT_VERNEEDNUM)
599 VerNeedNum = Dyn.d_un.d_val;
601 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset;
602 const typename ELFO::Elf_Shdr *StrTab =
603 unwrapOrError(Obj->getSection(Sec->sh_link));
605 const uint8_t *P = SecData;
606 for (unsigned I = 0; I < VerNeedNum; ++I) {
607 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P);
608 DictScope Entry(W, "Dependency");
609 W.printNumber("Version", Need->vn_version);
610 W.printNumber("Count", Need->vn_cnt);
611 W.printString("FileName",
612 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
615 const uint8_t *PAux = P + Need->vn_aux;
616 for (unsigned J = 0; J < Need->vn_cnt; ++J) {
617 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux);
618 DictScope Entry(W, "Entry");
619 W.printNumber("Hash", Aux->vna_hash);
620 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags));
621 W.printNumber("Index", Aux->vna_other);
622 W.printString("Name",
623 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
625 PAux += Aux->vna_next;
631 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() {
632 // Dump version symbol section.
633 printVersionSymbolSection(this, Obj, dot_gnu_version_sec, W);
635 // Dump version definition section.
636 printVersionDefinitionSection(this, Obj, dot_gnu_version_d_sec, W);
638 // Dump version dependency section.
639 printVersionDependencySection(this, Obj, dot_gnu_version_r_sec, W);
642 template <typename ELFT>
643 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab,
645 bool &IsDefault) const {
646 // This is a dynamic symbol. Look in the GNU symbol version table.
647 if (!dot_gnu_version_sec) {
650 return StringRef("");
653 // Determine the position in the symbol table of this entry.
654 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) -
655 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) /
658 // Get the corresponding version index entry
659 const Elf_Versym *vs =
660 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
661 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
663 // Special markers for unversioned symbols.
664 if (version_index == ELF::VER_NDX_LOCAL ||
665 version_index == ELF::VER_NDX_GLOBAL) {
667 return StringRef("");
670 // Lookup this symbol in the version table
672 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
673 reportError("Invalid version entry");
674 const VersionMapEntry &entry = VersionMap[version_index];
676 // Get the version name string
678 if (entry.isVerdef()) {
679 // The first Verdaux entry holds the name.
680 name_offset = entry.getVerdef()->getAux()->vda_name;
681 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
683 name_offset = entry.getVernaux()->vna_name;
686 if (name_offset >= StrTab.size())
687 reportError("Invalid string offset");
688 return StringRef(StrTab.data() + name_offset);
691 template <typename ELFT>
692 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol,
694 bool IsDynamic) const {
695 StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable));
699 std::string FullSymbolName(SymbolName);
702 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault);
703 FullSymbolName += (IsDefault ? "@@" : "@");
704 FullSymbolName += Version;
705 return FullSymbolName;
708 template <typename ELFO>
710 getSectionNameIndex(const ELFO &Obj, const typename ELFO::Elf_Sym *Symbol,
711 const typename ELFO::Elf_Sym *FirstSym,
712 ArrayRef<typename ELFO::Elf_Word> ShndxTable,
713 StringRef &SectionName, unsigned &SectionIndex) {
714 SectionIndex = Symbol->st_shndx;
715 if (Symbol->isUndefined())
716 SectionName = "Undefined";
717 else if (Symbol->isProcessorSpecific())
718 SectionName = "Processor Specific";
719 else if (Symbol->isOSSpecific())
720 SectionName = "Operating System Specific";
721 else if (Symbol->isAbsolute())
722 SectionName = "Absolute";
723 else if (Symbol->isCommon())
724 SectionName = "Common";
725 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX)
726 SectionName = "Reserved";
728 if (SectionIndex == SHN_XINDEX)
730 Obj.getExtendedSymbolTableIndex(Symbol, FirstSym, ShndxTable);
731 const typename ELFO::Elf_Shdr *Sec =
732 unwrapOrError(Obj.getSection(SectionIndex));
733 SectionName = unwrapOrError(Obj.getSectionName(Sec));
737 template <class ELFO>
738 static const typename ELFO::Elf_Shdr *
739 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) {
740 for (const auto &Shdr : Obj->sections())
741 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0)
746 template <class ELFO>
747 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj,
749 for (const auto &Shdr : Obj.sections()) {
750 if (Name == unwrapOrError(Obj.getSectionName(&Shdr)))
756 static const EnumEntry<unsigned> ElfClass[] = {
757 {"None", "none", ELF::ELFCLASSNONE},
758 {"32-bit", "ELF32", ELF::ELFCLASS32},
759 {"64-bit", "ELF64", ELF::ELFCLASS64},
762 static const EnumEntry<unsigned> ElfDataEncoding[] = {
763 {"None", "none", ELF::ELFDATANONE},
764 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB},
765 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB},
768 static const EnumEntry<unsigned> ElfObjectFileType[] = {
769 {"None", "NONE (none)", ELF::ET_NONE},
770 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL},
771 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC},
772 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN},
773 {"Core", "CORE (Core file)", ELF::ET_CORE},
776 static const EnumEntry<unsigned> ElfOSABI[] = {
777 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE},
778 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX},
779 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD},
780 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX},
781 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD},
782 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS},
783 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX},
784 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX},
785 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD},
786 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64},
787 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO},
788 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD},
789 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS},
790 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK},
791 {"AROS", "AROS", ELF::ELFOSABI_AROS},
792 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS},
793 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI},
794 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI},
795 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX},
796 {"ARM", "ARM", ELF::ELFOSABI_ARM},
797 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE}
800 static const EnumEntry<unsigned> ElfMachineType[] = {
801 ENUM_ENT(EM_NONE, "None"),
802 ENUM_ENT(EM_M32, "WE32100"),
803 ENUM_ENT(EM_SPARC, "Sparc"),
804 ENUM_ENT(EM_386, "Intel 80386"),
805 ENUM_ENT(EM_68K, "MC68000"),
806 ENUM_ENT(EM_88K, "MC88000"),
807 ENUM_ENT(EM_IAMCU, "EM_IAMCU"),
808 ENUM_ENT(EM_860, "Intel 80860"),
809 ENUM_ENT(EM_MIPS, "MIPS R3000"),
810 ENUM_ENT(EM_S370, "IBM System/370"),
811 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"),
812 ENUM_ENT(EM_PARISC, "HPPA"),
813 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"),
814 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"),
815 ENUM_ENT(EM_960, "Intel 80960"),
816 ENUM_ENT(EM_PPC, "PowerPC"),
817 ENUM_ENT(EM_PPC64, "PowerPC64"),
818 ENUM_ENT(EM_S390, "IBM S/390"),
819 ENUM_ENT(EM_SPU, "SPU"),
820 ENUM_ENT(EM_V800, "NEC V800 series"),
821 ENUM_ENT(EM_FR20, "Fujistsu FR20"),
822 ENUM_ENT(EM_RH32, "TRW RH-32"),
823 ENUM_ENT(EM_RCE, "Motorola RCE"),
824 ENUM_ENT(EM_ARM, "ARM"),
825 ENUM_ENT(EM_ALPHA, "EM_ALPHA"),
826 ENUM_ENT(EM_SH, "Hitachi SH"),
827 ENUM_ENT(EM_SPARCV9, "Sparc v9"),
828 ENUM_ENT(EM_TRICORE, "Siemens Tricore"),
829 ENUM_ENT(EM_ARC, "ARC"),
830 ENUM_ENT(EM_H8_300, "Hitachi H8/300"),
831 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"),
832 ENUM_ENT(EM_H8S, "Hitachi H8S"),
833 ENUM_ENT(EM_H8_500, "Hitachi H8/500"),
834 ENUM_ENT(EM_IA_64, "Intel IA-64"),
835 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"),
836 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"),
837 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"),
838 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"),
839 ENUM_ENT(EM_PCP, "Siemens PCP"),
840 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"),
841 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"),
842 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"),
843 ENUM_ENT(EM_ME16, "Toyota ME16 processor"),
844 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"),
845 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"),
846 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"),
847 ENUM_ENT(EM_PDSP, "Sony DSP processor"),
848 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"),
849 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"),
850 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"),
851 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"),
852 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"),
853 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"),
854 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"),
855 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"),
856 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"),
857 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"),
858 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"),
859 ENUM_ENT(EM_VAX, "Digital VAX"),
860 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"),
861 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"),
862 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"),
863 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"),
864 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"),
865 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"),
866 ENUM_ENT(EM_PRISM, "Vitesse Prism"),
867 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"),
868 ENUM_ENT(EM_FR30, "Fujitsu FR30"),
869 ENUM_ENT(EM_D10V, "Mitsubishi D10V"),
870 ENUM_ENT(EM_D30V, "Mitsubishi D30V"),
871 ENUM_ENT(EM_V850, "NEC v850"),
872 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"),
873 ENUM_ENT(EM_MN10300, "Matsushita MN10300"),
874 ENUM_ENT(EM_MN10200, "Matsushita MN10200"),
875 ENUM_ENT(EM_PJ, "picoJava"),
876 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"),
877 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"),
878 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"),
879 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"),
880 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"),
881 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"),
882 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"),
883 ENUM_ENT(EM_SNP1K, "EM_SNP1K"),
884 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"),
885 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"),
886 ENUM_ENT(EM_MAX, "MAX Processor"),
887 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"),
888 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"),
889 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"),
890 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"),
891 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"),
892 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"),
893 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"),
894 ENUM_ENT(EM_UNICORE, "Unicore"),
895 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"),
896 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"),
897 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"),
898 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"),
899 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"),
900 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"),
901 ENUM_ENT(EM_M16C, "Renesas M16C"),
902 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"),
903 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"),
904 ENUM_ENT(EM_M32C, "Renesas M32C"),
905 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"),
906 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"),
907 ENUM_ENT(EM_SHARC, "EM_SHARC"),
908 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"),
909 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"),
910 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"),
911 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"),
912 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"),
913 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"),
914 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"),
915 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"),
916 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"),
917 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"),
918 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"),
919 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"),
920 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"),
921 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"),
922 ENUM_ENT(EM_8051, "Intel 8051 and variants"),
923 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"),
924 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"),
925 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"),
926 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"),
927 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"),
928 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"),
929 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"),
930 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"),
931 ENUM_ENT(EM_RX, "Renesas RX"),
932 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"),
933 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"),
934 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"),
935 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"),
936 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"),
937 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"),
938 ENUM_ENT(EM_L10M, "EM_L10M"),
939 ENUM_ENT(EM_K10M, "EM_K10M"),
940 ENUM_ENT(EM_AARCH64, "AArch64"),
941 ENUM_ENT(EM_AVR32, "Atmel AVR 8-bit microcontroller"),
942 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"),
943 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"),
944 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"),
945 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"),
946 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"),
947 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"),
948 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"),
949 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"),
950 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"),
951 ENUM_ENT(EM_OPEN8, "EM_OPEN8"),
952 ENUM_ENT(EM_RL78, "Renesas RL78"),
953 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"),
954 ENUM_ENT(EM_78KOR, "EM_78KOR"),
955 ENUM_ENT(EM_56800EX, "EM_56800EX"),
956 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"),
957 ENUM_ENT(EM_WEBASSEMBLY, "EM_WEBASSEMBLY"),
958 ENUM_ENT(EM_LANAI, "EM_LANAI"),
959 ENUM_ENT(EM_BPF, "EM_BPF"),
962 static const EnumEntry<unsigned> ElfSymbolBindings[] = {
963 {"Local", "LOCAL", ELF::STB_LOCAL},
964 {"Global", "GLOBAL", ELF::STB_GLOBAL},
965 {"Weak", "WEAK", ELF::STB_WEAK},
966 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}};
968 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = {
969 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT},
970 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL},
971 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN},
972 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}};
974 static const EnumEntry<unsigned> ElfSymbolTypes[] = {
975 {"None", "NOTYPE", ELF::STT_NOTYPE},
976 {"Object", "OBJECT", ELF::STT_OBJECT},
977 {"Function", "FUNC", ELF::STT_FUNC},
978 {"Section", "SECTION", ELF::STT_SECTION},
979 {"File", "FILE", ELF::STT_FILE},
980 {"Common", "COMMON", ELF::STT_COMMON},
981 {"TLS", "TLS", ELF::STT_TLS},
982 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}};
984 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = {
985 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL },
986 { "AMDGPU_HSA_INDIRECT_FUNCTION", ELF::STT_AMDGPU_HSA_INDIRECT_FUNCTION },
987 { "AMDGPU_HSA_METADATA", ELF::STT_AMDGPU_HSA_METADATA }
990 static const char *getElfSectionType(unsigned Arch, unsigned Type) {
994 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_EXIDX);
995 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_PREEMPTMAP);
996 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_ATTRIBUTES);
997 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_DEBUGOVERLAY);
998 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_OVERLAYSECTION);
1000 case ELF::EM_HEXAGON:
1001 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED); }
1002 case ELF::EM_X86_64:
1003 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND); }
1005 case ELF::EM_MIPS_RS3_LE:
1007 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO);
1008 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS);
1009 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_ABIFLAGS);
1014 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NULL );
1015 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PROGBITS );
1016 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB );
1017 LLVM_READOBJ_ENUM_CASE(ELF, SHT_STRTAB );
1018 LLVM_READOBJ_ENUM_CASE(ELF, SHT_RELA );
1019 LLVM_READOBJ_ENUM_CASE(ELF, SHT_HASH );
1020 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNAMIC );
1021 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOTE );
1022 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOBITS );
1023 LLVM_READOBJ_ENUM_CASE(ELF, SHT_REL );
1024 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SHLIB );
1025 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNSYM );
1026 LLVM_READOBJ_ENUM_CASE(ELF, SHT_INIT_ARRAY );
1027 LLVM_READOBJ_ENUM_CASE(ELF, SHT_FINI_ARRAY );
1028 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PREINIT_ARRAY );
1029 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GROUP );
1030 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB_SHNDX );
1031 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES );
1032 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_HASH );
1033 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verdef );
1034 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verneed );
1035 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_versym );
1040 static const char *getGroupType(uint32_t Flag) {
1041 if (Flag & ELF::GRP_COMDAT)
1047 static const EnumEntry<unsigned> ElfSectionFlags[] = {
1048 ENUM_ENT(SHF_WRITE, "W"),
1049 ENUM_ENT(SHF_ALLOC, "A"),
1050 ENUM_ENT(SHF_EXCLUDE, "E"),
1051 ENUM_ENT(SHF_EXECINSTR, "X"),
1052 ENUM_ENT(SHF_MERGE, "M"),
1053 ENUM_ENT(SHF_STRINGS, "S"),
1054 ENUM_ENT(SHF_INFO_LINK, "I"),
1055 ENUM_ENT(SHF_LINK_ORDER, "L"),
1056 ENUM_ENT(SHF_OS_NONCONFORMING, "o"),
1057 ENUM_ENT(SHF_GROUP, "G"),
1058 ENUM_ENT(SHF_TLS, "T"),
1059 ENUM_ENT(SHF_MASKOS, "o"),
1060 ENUM_ENT(SHF_MASKPROC, "p"),
1061 ENUM_ENT_1(SHF_COMPRESSED),
1064 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = {
1065 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
1066 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION)
1069 static const EnumEntry<unsigned> ElfAMDGPUSectionFlags[] = {
1070 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_GLOBAL),
1071 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_READONLY),
1072 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_CODE),
1073 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_AGENT)
1076 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = {
1077 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL)
1080 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = {
1081 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES),
1082 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ),
1083 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ),
1084 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP),
1085 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ),
1086 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ),
1087 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ),
1088 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING )
1091 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = {
1092 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE)
1095 static std::string getGNUFlags(uint64_t Flags) {
1097 for (auto Entry : ElfSectionFlags) {
1098 uint64_t Flag = Entry.Value & Flags;
1099 Flags &= ~Entry.Value;
1101 case ELF::SHF_WRITE:
1102 case ELF::SHF_ALLOC:
1103 case ELF::SHF_EXECINSTR:
1104 case ELF::SHF_MERGE:
1105 case ELF::SHF_STRINGS:
1106 case ELF::SHF_INFO_LINK:
1107 case ELF::SHF_LINK_ORDER:
1108 case ELF::SHF_OS_NONCONFORMING:
1109 case ELF::SHF_GROUP:
1111 case ELF::SHF_EXCLUDE:
1112 Str += Entry.AltName;
1115 if (Flag & ELF::SHF_MASKOS)
1117 else if (Flag & ELF::SHF_MASKPROC)
1126 static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
1127 // Check potentially overlapped processor-specific
1128 // program header type.
1130 case ELF::EM_AMDGPU:
1132 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM);
1133 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT);
1134 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT);
1135 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT);
1139 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
1142 case ELF::EM_MIPS_RS3_LE:
1144 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
1145 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
1146 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
1147 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS);
1152 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
1153 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
1154 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
1155 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
1156 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
1157 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
1158 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
1159 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
1161 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
1162 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
1164 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
1165 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
1170 static std::string getElfPtType(unsigned Arch, unsigned Type) {
1172 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL)
1173 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD)
1174 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC)
1175 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP)
1176 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE)
1177 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB)
1178 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR)
1179 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS)
1180 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME)
1181 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND)
1182 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK)
1183 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO)
1185 // All machine specific PT_* types
1187 case ELF::EM_AMDGPU:
1189 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM);
1190 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT);
1191 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT);
1192 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT);
1196 if (Type == ELF::PT_ARM_EXIDX)
1200 case ELF::EM_MIPS_RS3_LE:
1202 case PT_MIPS_REGINFO:
1204 case PT_MIPS_RTPROC:
1206 case PT_MIPS_OPTIONS:
1208 case PT_MIPS_ABIFLAGS:
1214 return std::string("<unknown>: ") + to_string(format_hex(Type, 1));
1217 static const EnumEntry<unsigned> ElfSegmentFlags[] = {
1218 LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
1219 LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
1220 LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
1223 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
1224 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER),
1225 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC),
1226 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC),
1227 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2),
1228 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE),
1229 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64),
1230 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008),
1231 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32),
1232 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64),
1233 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32),
1234 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64),
1235 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900),
1236 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010),
1237 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100),
1238 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650),
1239 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120),
1240 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111),
1241 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1),
1242 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON),
1243 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR),
1244 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2),
1245 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3),
1246 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400),
1247 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900),
1248 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500),
1249 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000),
1250 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E),
1251 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F),
1252 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A),
1253 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS),
1254 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16),
1255 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX),
1256 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1),
1257 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2),
1258 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3),
1259 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4),
1260 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5),
1261 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32),
1262 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64),
1263 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2),
1264 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2),
1265 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6),
1266 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6)
1269 static const EnumEntry<unsigned> ElfSymOtherFlags[] = {
1270 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL),
1271 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN),
1272 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED)
1275 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = {
1276 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1277 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1278 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC),
1279 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS)
1282 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = {
1283 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1284 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1285 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16)
1288 static const char *getElfMipsOptionsOdkType(unsigned Odk) {
1290 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL);
1291 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO);
1292 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS);
1293 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD);
1294 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH);
1295 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL);
1296 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS);
1297 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND);
1298 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR);
1299 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP);
1300 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT);
1301 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE);
1307 template <typename ELFT>
1308 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer)
1309 : ObjDumper(Writer), Obj(Obj) {
1311 SmallVector<const Elf_Phdr *, 4> LoadSegments;
1312 for (const Elf_Phdr &Phdr : Obj->program_headers()) {
1313 if (Phdr.p_type == ELF::PT_DYNAMIC) {
1314 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn));
1317 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0)
1319 LoadSegments.push_back(&Phdr);
1322 for (const Elf_Shdr &Sec : Obj->sections()) {
1323 switch (Sec.sh_type) {
1324 case ELF::SHT_SYMTAB:
1325 if (DotSymtabSec != nullptr)
1326 reportError("Multilpe SHT_SYMTAB");
1327 DotSymtabSec = &Sec;
1329 case ELF::SHT_DYNSYM:
1330 if (DynSymRegion.Size)
1331 reportError("Multilpe SHT_DYNSYM");
1332 DynSymRegion = createDRIFrom(&Sec);
1333 // This is only used (if Elf_Shdr present)for naming section in GNU style
1334 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec));
1336 case ELF::SHT_SYMTAB_SHNDX:
1337 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec));
1339 case ELF::SHT_GNU_versym:
1340 if (dot_gnu_version_sec != nullptr)
1341 reportError("Multiple SHT_GNU_versym");
1342 dot_gnu_version_sec = &Sec;
1344 case ELF::SHT_GNU_verdef:
1345 if (dot_gnu_version_d_sec != nullptr)
1346 reportError("Multiple SHT_GNU_verdef");
1347 dot_gnu_version_d_sec = &Sec;
1349 case ELF::SHT_GNU_verneed:
1350 if (dot_gnu_version_r_sec != nullptr)
1351 reportError("Multilpe SHT_GNU_verneed");
1352 dot_gnu_version_r_sec = &Sec;
1357 parseDynamicTable(LoadSegments);
1359 if (opts::Output == opts::GNU)
1360 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this));
1362 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this));
1365 template <typename ELFT>
1366 void ELFDumper<ELFT>::parseDynamicTable(
1367 ArrayRef<const Elf_Phdr *> LoadSegments) {
1368 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * {
1369 const Elf_Phdr *const *I = std::upper_bound(
1370 LoadSegments.begin(), LoadSegments.end(), VAddr, compareAddr<ELFT>);
1371 if (I == LoadSegments.begin())
1372 report_fatal_error("Virtual address is not in any segment");
1374 const Elf_Phdr &Phdr = **I;
1375 uint64_t Delta = VAddr - Phdr.p_vaddr;
1376 if (Delta >= Phdr.p_filesz)
1377 report_fatal_error("Virtual address is not in any segment");
1378 return Obj->base() + Phdr.p_offset + Delta;
1381 uint64_t SONameOffset = 0;
1382 const char *StringTableBegin = nullptr;
1383 uint64_t StringTableSize = 0;
1384 for (const Elf_Dyn &Dyn : dynamic_table()) {
1385 switch (Dyn.d_tag) {
1388 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr()));
1390 case ELF::DT_GNU_HASH:
1392 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr()));
1394 case ELF::DT_STRTAB:
1395 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr());
1398 StringTableSize = Dyn.getVal();
1400 case ELF::DT_SYMTAB:
1401 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr());
1402 DynSymRegion.EntSize = sizeof(Elf_Sym);
1405 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr());
1407 case ELF::DT_RELASZ:
1408 DynRelaRegion.Size = Dyn.getVal();
1410 case ELF::DT_RELAENT:
1411 DynRelaRegion.EntSize = Dyn.getVal();
1413 case ELF::DT_SONAME:
1414 SONameOffset = Dyn.getVal();
1417 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1420 DynRelRegion.Size = Dyn.getVal();
1422 case ELF::DT_RELENT:
1423 DynRelRegion.EntSize = Dyn.getVal();
1425 case ELF::DT_PLTREL:
1426 if (Dyn.getVal() == DT_REL)
1427 DynPLTRelRegion.EntSize = sizeof(Elf_Rel);
1428 else if (Dyn.getVal() == DT_RELA)
1429 DynPLTRelRegion.EntSize = sizeof(Elf_Rela);
1431 reportError(Twine("unknown DT_PLTREL value of ") +
1432 Twine((uint64_t)Dyn.getVal()));
1434 case ELF::DT_JMPREL:
1435 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1437 case ELF::DT_PLTRELSZ:
1438 DynPLTRelRegion.Size = Dyn.getVal();
1442 if (StringTableBegin)
1443 DynamicStringTable = StringRef(StringTableBegin, StringTableSize);
1445 SOName = getDynamicString(SONameOffset);
1448 template <typename ELFT>
1449 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const {
1450 return DynRelRegion.getAsArrayRef<Elf_Rel>();
1453 template <typename ELFT>
1454 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const {
1455 return DynRelaRegion.getAsArrayRef<Elf_Rela>();
1458 template<class ELFT>
1459 void ELFDumper<ELFT>::printFileHeaders() {
1460 ELFDumperStyle->printFileHeaders(Obj);
1463 template<class ELFT>
1464 void ELFDumper<ELFT>::printSections() {
1465 ELFDumperStyle->printSections(Obj);
1468 template<class ELFT>
1469 void ELFDumper<ELFT>::printRelocations() {
1470 ELFDumperStyle->printRelocations(Obj);
1473 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() {
1474 ELFDumperStyle->printProgramHeaders(Obj);
1477 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() {
1478 ELFDumperStyle->printDynamicRelocations(Obj);
1481 template<class ELFT>
1482 void ELFDumper<ELFT>::printSymbols() {
1483 ELFDumperStyle->printSymbols(Obj);
1486 template<class ELFT>
1487 void ELFDumper<ELFT>::printDynamicSymbols() {
1488 ELFDumperStyle->printDynamicSymbols(Obj);
1491 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() {
1492 ELFDumperStyle->printHashHistogram(Obj);
1494 #define LLVM_READOBJ_TYPE_CASE(name) \
1495 case DT_##name: return #name
1497 static const char *getTypeString(uint64_t Type) {
1499 LLVM_READOBJ_TYPE_CASE(BIND_NOW);
1500 LLVM_READOBJ_TYPE_CASE(DEBUG);
1501 LLVM_READOBJ_TYPE_CASE(FINI);
1502 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
1503 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
1504 LLVM_READOBJ_TYPE_CASE(FLAGS);
1505 LLVM_READOBJ_TYPE_CASE(FLAGS_1);
1506 LLVM_READOBJ_TYPE_CASE(HASH);
1507 LLVM_READOBJ_TYPE_CASE(INIT);
1508 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
1509 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
1510 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
1511 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
1512 LLVM_READOBJ_TYPE_CASE(JMPREL);
1513 LLVM_READOBJ_TYPE_CASE(NEEDED);
1514 LLVM_READOBJ_TYPE_CASE(NULL);
1515 LLVM_READOBJ_TYPE_CASE(PLTGOT);
1516 LLVM_READOBJ_TYPE_CASE(PLTREL);
1517 LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
1518 LLVM_READOBJ_TYPE_CASE(REL);
1519 LLVM_READOBJ_TYPE_CASE(RELA);
1520 LLVM_READOBJ_TYPE_CASE(RELENT);
1521 LLVM_READOBJ_TYPE_CASE(RELSZ);
1522 LLVM_READOBJ_TYPE_CASE(RELAENT);
1523 LLVM_READOBJ_TYPE_CASE(RELASZ);
1524 LLVM_READOBJ_TYPE_CASE(RPATH);
1525 LLVM_READOBJ_TYPE_CASE(RUNPATH);
1526 LLVM_READOBJ_TYPE_CASE(SONAME);
1527 LLVM_READOBJ_TYPE_CASE(STRSZ);
1528 LLVM_READOBJ_TYPE_CASE(STRTAB);
1529 LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
1530 LLVM_READOBJ_TYPE_CASE(SYMENT);
1531 LLVM_READOBJ_TYPE_CASE(SYMTAB);
1532 LLVM_READOBJ_TYPE_CASE(TEXTREL);
1533 LLVM_READOBJ_TYPE_CASE(VERDEF);
1534 LLVM_READOBJ_TYPE_CASE(VERDEFNUM);
1535 LLVM_READOBJ_TYPE_CASE(VERNEED);
1536 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM);
1537 LLVM_READOBJ_TYPE_CASE(VERSYM);
1538 LLVM_READOBJ_TYPE_CASE(RELACOUNT);
1539 LLVM_READOBJ_TYPE_CASE(RELCOUNT);
1540 LLVM_READOBJ_TYPE_CASE(GNU_HASH);
1541 LLVM_READOBJ_TYPE_CASE(TLSDESC_PLT);
1542 LLVM_READOBJ_TYPE_CASE(TLSDESC_GOT);
1543 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION);
1544 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL);
1545 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS);
1546 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS);
1547 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO);
1548 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO);
1549 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO);
1550 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM);
1551 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP);
1552 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT);
1553 LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS);
1554 default: return "unknown";
1558 #undef LLVM_READOBJ_TYPE_CASE
1560 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
1561 { #enum, prefix##_##enum }
1563 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
1564 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
1565 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
1566 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
1567 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
1568 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
1571 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
1572 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW),
1573 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL),
1574 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP),
1575 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE),
1576 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR),
1577 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST),
1578 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN),
1579 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN),
1580 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT),
1581 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS),
1582 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE),
1583 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB),
1584 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP),
1585 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT),
1586 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE),
1587 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE),
1588 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT),
1589 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF),
1590 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS),
1591 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR),
1592 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED),
1593 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
1594 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
1595 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
1596 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
1599 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
1600 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
1601 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
1602 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
1603 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
1604 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
1605 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
1606 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
1607 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
1608 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
1609 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
1610 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
1611 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
1612 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
1613 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
1614 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
1615 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
1618 #undef LLVM_READOBJ_DT_FLAG_ENT
1620 template <typename T, typename TFlag>
1621 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
1622 typedef EnumEntry<TFlag> FlagEntry;
1623 typedef SmallVector<FlagEntry, 10> FlagVector;
1624 FlagVector SetFlags;
1626 for (const auto &Flag : Flags) {
1627 if (Flag.Value == 0)
1630 if ((Value & Flag.Value) == Flag.Value)
1631 SetFlags.push_back(Flag);
1634 for (const auto &Flag : SetFlags) {
1635 OS << Flag.Name << " ";
1639 template <class ELFT>
1640 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const {
1641 if (Value >= DynamicStringTable.size())
1642 reportError("Invalid dynamic string table reference");
1643 return StringRef(DynamicStringTable.data() + Value);
1646 template <class ELFT>
1647 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) {
1648 raw_ostream &OS = W.getOStream();
1649 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64;
1652 if (Value == DT_REL) {
1655 } else if (Value == DT_RELA) {
1671 case DT_PREINIT_ARRAY:
1678 case DT_MIPS_BASE_ADDRESS:
1679 case DT_MIPS_GOTSYM:
1680 case DT_MIPS_RLD_MAP:
1681 case DT_MIPS_RLD_MAP_REL:
1682 case DT_MIPS_PLTGOT:
1683 case DT_MIPS_OPTIONS:
1684 OS << format(ConvChar, Value);
1690 case DT_MIPS_RLD_VERSION:
1691 case DT_MIPS_LOCAL_GOTNO:
1692 case DT_MIPS_SYMTABNO:
1693 case DT_MIPS_UNREFEXTNO:
1703 case DT_INIT_ARRAYSZ:
1704 case DT_FINI_ARRAYSZ:
1705 case DT_PREINIT_ARRAYSZ:
1706 OS << Value << " (bytes)";
1709 OS << "SharedLibrary (" << getDynamicString(Value) << ")";
1712 OS << "LibrarySoname (" << getDynamicString(Value) << ")";
1716 OS << getDynamicString(Value);
1719 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
1722 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
1725 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS);
1728 OS << format(ConvChar, Value);
1733 template<class ELFT>
1734 void ELFDumper<ELFT>::printUnwindInfo() {
1735 W.startLine() << "UnwindInfo not implemented.\n";
1739 template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() {
1740 const unsigned Machine = Obj->getHeader()->e_machine;
1741 if (Machine == EM_ARM) {
1742 ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx(
1743 W, Obj, DotSymtabSec);
1744 return Ctx.PrintUnwindInformation();
1746 W.startLine() << "UnwindInfo not implemented.\n";
1750 template<class ELFT>
1751 void ELFDumper<ELFT>::printDynamicTable() {
1752 auto I = dynamic_table().begin();
1753 auto E = dynamic_table().end();
1759 while (I != E && E->getTag() == ELF::DT_NULL)
1761 if (E->getTag() != ELF::DT_NULL)
1765 ptrdiff_t Total = std::distance(I, E);
1769 raw_ostream &OS = W.getOStream();
1770 W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
1772 bool Is64 = ELFT::Is64Bits;
1775 << " Tag" << (Is64 ? " " : " ") << "Type"
1776 << " " << "Name/Value\n";
1778 const Elf_Dyn &Entry = *I;
1779 uintX_t Tag = Entry.getTag();
1781 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " "
1782 << format("%-21s", getTypeString(Tag));
1783 printValue(Tag, Entry.getVal());
1787 W.startLine() << "]\n";
1790 template<class ELFT>
1791 void ELFDumper<ELFT>::printNeededLibraries() {
1792 ListScope D(W, "NeededLibraries");
1794 typedef std::vector<StringRef> LibsTy;
1797 for (const auto &Entry : dynamic_table())
1798 if (Entry.d_tag == ELF::DT_NEEDED)
1799 Libs.push_back(getDynamicString(Entry.d_un.d_val));
1801 std::stable_sort(Libs.begin(), Libs.end());
1803 for (const auto &L : Libs) {
1804 outs() << " " << L << "\n";
1809 template <typename ELFT>
1810 void ELFDumper<ELFT>::printHashTable() {
1811 DictScope D(W, "HashTable");
1814 W.printNumber("Num Buckets", HashTable->nbucket);
1815 W.printNumber("Num Chains", HashTable->nchain);
1816 W.printList("Buckets", HashTable->buckets());
1817 W.printList("Chains", HashTable->chains());
1820 template <typename ELFT>
1821 void ELFDumper<ELFT>::printGnuHashTable() {
1822 DictScope D(W, "GnuHashTable");
1825 W.printNumber("Num Buckets", GnuHashTable->nbuckets);
1826 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx);
1827 W.printNumber("Num Mask Words", GnuHashTable->maskwords);
1828 W.printNumber("Shift Count", GnuHashTable->shift2);
1829 W.printHexList("Bloom Filter", GnuHashTable->filter());
1830 W.printList("Buckets", GnuHashTable->buckets());
1831 Elf_Sym_Range Syms = dynamic_symbols();
1832 unsigned NumSyms = std::distance(Syms.begin(), Syms.end());
1834 reportError("No dynamic symbol section");
1835 W.printHexList("Values", GnuHashTable->values(NumSyms));
1838 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() {
1839 outs() << "LoadName: " << SOName << '\n';
1842 template <class ELFT>
1843 void ELFDumper<ELFT>::printAttributes() {
1844 W.startLine() << "Attributes not implemented.\n";
1848 template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() {
1849 if (Obj->getHeader()->e_machine != EM_ARM) {
1850 W.startLine() << "Attributes not implemented.\n";
1854 DictScope BA(W, "BuildAttributes");
1855 for (const ELFO::Elf_Shdr &Sec : Obj->sections()) {
1856 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES)
1859 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec));
1860 if (Contents[0] != ARMBuildAttrs::Format_Version) {
1861 errs() << "unrecognised FormatVersion: 0x" << utohexstr(Contents[0])
1866 W.printHex("FormatVersion", Contents[0]);
1867 if (Contents.size() == 1)
1870 ARMAttributeParser(W).Parse(Contents);
1876 template <class ELFT> class MipsGOTParser {
1878 typedef object::ELFFile<ELFT> ELFO;
1879 typedef typename ELFO::Elf_Shdr Elf_Shdr;
1880 typedef typename ELFO::Elf_Sym Elf_Sym;
1881 typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range;
1882 typedef typename ELFO::Elf_Addr GOTEntry;
1883 typedef typename ELFO::Elf_Rel Elf_Rel;
1884 typedef typename ELFO::Elf_Rela Elf_Rela;
1886 MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1887 Elf_Dyn_Range DynTable, ScopedPrinter &W);
1893 ELFDumper<ELFT> *Dumper;
1896 llvm::Optional<uint64_t> DtPltGot;
1897 llvm::Optional<uint64_t> DtLocalGotNum;
1898 llvm::Optional<uint64_t> DtGotSym;
1899 llvm::Optional<uint64_t> DtMipsPltGot;
1900 llvm::Optional<uint64_t> DtJmpRel;
1902 std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const;
1903 const GOTEntry *makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum);
1905 void printGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1906 const GOTEntry *It);
1907 void printGlobalGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1908 const GOTEntry *It, const Elf_Sym *Sym,
1909 StringRef StrTable, bool IsDynamic);
1910 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1911 const GOTEntry *It, StringRef Purpose);
1912 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1913 const GOTEntry *It, StringRef StrTable,
1914 const Elf_Sym *Sym);
1918 template <class ELFT>
1919 MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1920 Elf_Dyn_Range DynTable, ScopedPrinter &W)
1921 : Dumper(Dumper), Obj(Obj), W(W) {
1922 for (const auto &Entry : DynTable) {
1923 switch (Entry.getTag()) {
1924 case ELF::DT_PLTGOT:
1925 DtPltGot = Entry.getVal();
1927 case ELF::DT_MIPS_LOCAL_GOTNO:
1928 DtLocalGotNum = Entry.getVal();
1930 case ELF::DT_MIPS_GOTSYM:
1931 DtGotSym = Entry.getVal();
1933 case ELF::DT_MIPS_PLTGOT:
1934 DtMipsPltGot = Entry.getVal();
1936 case ELF::DT_JMPREL:
1937 DtJmpRel = Entry.getVal();
1943 template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() {
1944 // See "Global Offset Table" in Chapter 5 in the following document
1945 // for detailed GOT description.
1946 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
1948 W.startLine() << "Cannot find PLTGOT dynamic table tag.\n";
1951 if (!DtLocalGotNum) {
1952 W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n";
1956 W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n";
1960 StringRef StrTable = Dumper->getDynamicStringTable();
1961 const Elf_Sym *DynSymBegin = Dumper->dynamic_symbols().begin();
1962 const Elf_Sym *DynSymEnd = Dumper->dynamic_symbols().end();
1963 std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd));
1965 if (*DtGotSym > DynSymTotal)
1966 report_fatal_error("MIPS_GOTSYM exceeds a number of dynamic symbols");
1968 std::size_t GlobalGotNum = DynSymTotal - *DtGotSym;
1970 if (*DtLocalGotNum + GlobalGotNum == 0) {
1971 W.startLine() << "GOT is empty.\n";
1975 const Elf_Shdr *GOTShdr = findNotEmptySectionByAddress(Obj, *DtPltGot);
1977 report_fatal_error("There is no not empty GOT section at 0x" +
1978 Twine::utohexstr(*DtPltGot));
1980 ArrayRef<uint8_t> GOT = unwrapOrError(Obj->getSectionContents(GOTShdr));
1982 if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(GOT))
1983 report_fatal_error("Number of GOT entries exceeds the size of GOT section");
1985 const GOTEntry *GotBegin = makeGOTIter(GOT, 0);
1986 const GOTEntry *GotLocalEnd = makeGOTIter(GOT, *DtLocalGotNum);
1987 const GOTEntry *It = GotBegin;
1989 DictScope GS(W, "Primary GOT");
1991 W.printHex("Canonical gp value", GOTShdr->sh_addr + 0x7ff0);
1993 ListScope RS(W, "Reserved entries");
1996 DictScope D(W, "Entry");
1997 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
1998 W.printString("Purpose", StringRef("Lazy resolver"));
2001 if (It != GotLocalEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) {
2002 DictScope D(W, "Entry");
2003 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
2004 W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
2008 ListScope LS(W, "Local entries");
2009 for (; It != GotLocalEnd; ++It) {
2010 DictScope D(W, "Entry");
2011 printGotEntry(GOTShdr->sh_addr, GotBegin, It);
2015 ListScope GS(W, "Global entries");
2017 const GOTEntry *GotGlobalEnd =
2018 makeGOTIter(GOT, *DtLocalGotNum + GlobalGotNum);
2019 const Elf_Sym *GotDynSym = DynSymBegin + *DtGotSym;
2020 for (; It != GotGlobalEnd; ++It) {
2021 DictScope D(W, "Entry");
2022 printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++, StrTable,
2027 std::size_t SpecGotNum = getGOTTotal(GOT) - *DtLocalGotNum - GlobalGotNum;
2028 W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum));
2031 template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() {
2032 if (!DtMipsPltGot) {
2033 W.startLine() << "Cannot find MIPS_PLTGOT dynamic table tag.\n";
2037 W.startLine() << "Cannot find JMPREL dynamic table tag.\n";
2041 const Elf_Shdr *PLTShdr = findNotEmptySectionByAddress(Obj, *DtMipsPltGot);
2043 report_fatal_error("There is no not empty PLTGOT section at 0x " +
2044 Twine::utohexstr(*DtMipsPltGot));
2045 ArrayRef<uint8_t> PLT = unwrapOrError(Obj->getSectionContents(PLTShdr));
2047 const Elf_Shdr *PLTRelShdr = findNotEmptySectionByAddress(Obj, *DtJmpRel);
2049 report_fatal_error("There is no not empty RELPLT section at 0x" +
2050 Twine::utohexstr(*DtJmpRel));
2051 const Elf_Shdr *SymTable =
2052 unwrapOrError(Obj->getSection(PLTRelShdr->sh_link));
2053 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTable));
2055 const GOTEntry *PLTBegin = makeGOTIter(PLT, 0);
2056 const GOTEntry *PLTEnd = makeGOTIter(PLT, getGOTTotal(PLT));
2057 const GOTEntry *It = PLTBegin;
2059 DictScope GS(W, "PLT GOT");
2061 ListScope RS(W, "Reserved entries");
2062 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "PLT lazy resolver");
2064 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "Module pointer");
2067 ListScope GS(W, "Entries");
2069 switch (PLTRelShdr->sh_type) {
2071 for (const Elf_Rel *RI = Obj->rel_begin(PLTRelShdr),
2072 *RE = Obj->rel_end(PLTRelShdr);
2073 RI != RE && It != PLTEnd; ++RI, ++It) {
2074 const Elf_Sym *Sym = Obj->getRelocationSymbol(&*RI, SymTable);
2075 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym);
2079 for (const Elf_Rela *RI = Obj->rela_begin(PLTRelShdr),
2080 *RE = Obj->rela_end(PLTRelShdr);
2081 RI != RE && It != PLTEnd; ++RI, ++It) {
2082 const Elf_Sym *Sym = Obj->getRelocationSymbol(&*RI, SymTable);
2083 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym);
2090 template <class ELFT>
2091 std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const {
2092 return GOT.size() / sizeof(GOTEntry);
2095 template <class ELFT>
2096 const typename MipsGOTParser<ELFT>::GOTEntry *
2097 MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) {
2098 const char *Data = reinterpret_cast<const char *>(GOT.data());
2099 return reinterpret_cast<const GOTEntry *>(Data + EntryNum * sizeof(GOTEntry));
2102 template <class ELFT>
2103 void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr,
2104 const GOTEntry *BeginIt,
2105 const GOTEntry *It) {
2106 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2107 W.printHex("Address", GotAddr + Offset);
2108 W.printNumber("Access", Offset - 0x7ff0);
2109 W.printHex("Initial", *It);
2112 template <class ELFT>
2113 void MipsGOTParser<ELFT>::printGlobalGotEntry(
2114 uint64_t GotAddr, const GOTEntry *BeginIt, const GOTEntry *It,
2115 const Elf_Sym *Sym, StringRef StrTable, bool IsDynamic) {
2116 printGotEntry(GotAddr, BeginIt, It);
2118 W.printHex("Value", Sym->st_value);
2119 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
2121 unsigned SectionIndex = 0;
2122 StringRef SectionName;
2123 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(),
2124 Dumper->getShndxTable(), SectionName, SectionIndex);
2125 W.printHex("Section", SectionName, SectionIndex);
2127 std::string FullSymbolName =
2128 Dumper->getFullSymbolName(Sym, StrTable, IsDynamic);
2129 W.printNumber("Name", FullSymbolName, Sym->st_name);
2132 template <class ELFT>
2133 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
2134 const GOTEntry *BeginIt,
2135 const GOTEntry *It, StringRef Purpose) {
2136 DictScope D(W, "Entry");
2137 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2138 W.printHex("Address", PLTAddr + Offset);
2139 W.printHex("Initial", *It);
2140 W.printString("Purpose", Purpose);
2143 template <class ELFT>
2144 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
2145 const GOTEntry *BeginIt,
2146 const GOTEntry *It, StringRef StrTable,
2147 const Elf_Sym *Sym) {
2148 DictScope D(W, "Entry");
2149 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2150 W.printHex("Address", PLTAddr + Offset);
2151 W.printHex("Initial", *It);
2152 W.printHex("Value", Sym->st_value);
2153 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
2155 unsigned SectionIndex = 0;
2156 StringRef SectionName;
2157 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(),
2158 Dumper->getShndxTable(), SectionName, SectionIndex);
2159 W.printHex("Section", SectionName, SectionIndex);
2161 std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true);
2162 W.printNumber("Name", FullSymbolName, Sym->st_name);
2165 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
2166 if (Obj->getHeader()->e_machine != EM_MIPS) {
2167 W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n";
2171 MipsGOTParser<ELFT> GOTParser(this, Obj, dynamic_table(), W);
2172 GOTParser.parseGOT();
2173 GOTParser.parsePLT();
2176 static const EnumEntry<unsigned> ElfMipsISAExtType[] = {
2177 {"None", Mips::AFL_EXT_NONE},
2178 {"Broadcom SB-1", Mips::AFL_EXT_SB1},
2179 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON},
2180 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2},
2181 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP},
2182 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3},
2183 {"LSI R4010", Mips::AFL_EXT_4010},
2184 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E},
2185 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F},
2186 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A},
2187 {"MIPS R4650", Mips::AFL_EXT_4650},
2188 {"MIPS R5900", Mips::AFL_EXT_5900},
2189 {"MIPS R10000", Mips::AFL_EXT_10000},
2190 {"NEC VR4100", Mips::AFL_EXT_4100},
2191 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111},
2192 {"NEC VR4120", Mips::AFL_EXT_4120},
2193 {"NEC VR5400", Mips::AFL_EXT_5400},
2194 {"NEC VR5500", Mips::AFL_EXT_5500},
2195 {"RMI Xlr", Mips::AFL_EXT_XLR},
2196 {"Toshiba R3900", Mips::AFL_EXT_3900}
2199 static const EnumEntry<unsigned> ElfMipsASEFlags[] = {
2200 {"DSP", Mips::AFL_ASE_DSP},
2201 {"DSPR2", Mips::AFL_ASE_DSPR2},
2202 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA},
2203 {"MCU", Mips::AFL_ASE_MCU},
2204 {"MDMX", Mips::AFL_ASE_MDMX},
2205 {"MIPS-3D", Mips::AFL_ASE_MIPS3D},
2206 {"MT", Mips::AFL_ASE_MT},
2207 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS},
2208 {"VZ", Mips::AFL_ASE_VIRT},
2209 {"MSA", Mips::AFL_ASE_MSA},
2210 {"MIPS16", Mips::AFL_ASE_MIPS16},
2211 {"microMIPS", Mips::AFL_ASE_MICROMIPS},
2212 {"XPA", Mips::AFL_ASE_XPA}
2215 static const EnumEntry<unsigned> ElfMipsFpABIType[] = {
2216 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY},
2217 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE},
2218 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE},
2219 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT},
2220 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)",
2221 Mips::Val_GNU_MIPS_ABI_FP_OLD_64},
2222 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX},
2223 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64},
2224 {"Hard float compat (32-bit CPU, 64-bit FPU)",
2225 Mips::Val_GNU_MIPS_ABI_FP_64A}
2228 static const EnumEntry<unsigned> ElfMipsFlags1[] {
2229 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG},
2232 static int getMipsRegisterSize(uint8_t Flag) {
2234 case Mips::AFL_REG_NONE:
2236 case Mips::AFL_REG_32:
2238 case Mips::AFL_REG_64:
2240 case Mips::AFL_REG_128:
2247 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() {
2248 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags");
2250 W.startLine() << "There is no .MIPS.abiflags section in the file.\n";
2253 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2254 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) {
2255 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n";
2259 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data());
2261 raw_ostream &OS = W.getOStream();
2262 DictScope GS(W, "MIPS ABI Flags");
2264 W.printNumber("Version", Flags->version);
2265 W.startLine() << "ISA: ";
2266 if (Flags->isa_rev <= 1)
2267 OS << format("MIPS%u", Flags->isa_level);
2269 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev);
2271 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType));
2272 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags));
2273 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType));
2274 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size));
2275 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size));
2276 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size));
2277 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1));
2278 W.printHex("Flags 2", Flags->flags2);
2281 template <class ELFT>
2282 static void printMipsReginfoData(ScopedPrinter &W,
2283 const Elf_Mips_RegInfo<ELFT> &Reginfo) {
2284 W.printHex("GP", Reginfo.ri_gp_value);
2285 W.printHex("General Mask", Reginfo.ri_gprmask);
2286 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]);
2287 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]);
2288 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]);
2289 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]);
2292 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() {
2293 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo");
2295 W.startLine() << "There is no .reginfo section in the file.\n";
2298 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2299 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) {
2300 W.startLine() << "The .reginfo section has a wrong size.\n";
2304 DictScope GS(W, "MIPS RegInfo");
2305 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data());
2306 printMipsReginfoData(W, *Reginfo);
2309 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() {
2310 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options");
2312 W.startLine() << "There is no .MIPS.options section in the file.\n";
2316 DictScope GS(W, "MIPS Options");
2318 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2319 while (!Sec.empty()) {
2320 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) {
2321 W.startLine() << "The .MIPS.options section has a wrong size.\n";
2324 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data());
2325 DictScope GS(W, getElfMipsOptionsOdkType(O->kind));
2328 printMipsReginfoData(W, O->getRegInfo());
2331 W.startLine() << "Unsupported MIPS options tag.\n";
2334 Sec = Sec.slice(O->size);
2338 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const {
2339 const Elf_Shdr *StackMapSection = nullptr;
2340 for (const auto &Sec : Obj->sections()) {
2341 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2342 if (Name == ".llvm_stackmaps") {
2343 StackMapSection = &Sec;
2348 if (!StackMapSection)
2351 StringRef StackMapContents;
2352 ArrayRef<uint8_t> StackMapContentsArray =
2353 unwrapOrError(Obj->getSectionContents(StackMapSection));
2355 prettyPrintStackMap(llvm::outs(), StackMapV1Parser<ELFT::TargetEndianness>(
2356 StackMapContentsArray));
2359 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() {
2360 ELFDumperStyle->printGroupSections(Obj);
2363 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1,
2367 OS.PadToColumn(37u);
2372 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
2373 const Elf_Ehdr *e = Obj->getHeader();
2374 OS << "ELF Header:\n";
2377 for (int i = 0; i < ELF::EI_NIDENT; i++)
2378 OS << format(" %02x", static_cast<int>(e->e_ident[i]));
2380 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
2381 printFields(OS, "Class:", Str);
2382 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding));
2383 printFields(OS, "Data:", Str);
2386 OS.PadToColumn(37u);
2387 OS << to_hexString(e->e_ident[ELF::EI_VERSION]);
2388 if (e->e_version == ELF::EV_CURRENT)
2391 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI));
2392 printFields(OS, "OS/ABI:", Str);
2393 Str = "0x" + to_hexString(e->e_version);
2394 Str = to_hexString(e->e_ident[ELF::EI_ABIVERSION]);
2395 printFields(OS, "ABI Version:", Str);
2396 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType));
2397 printFields(OS, "Type:", Str);
2398 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType));
2399 printFields(OS, "Machine:", Str);
2400 Str = "0x" + to_hexString(e->e_version);
2401 printFields(OS, "Version:", Str);
2402 Str = "0x" + to_hexString(e->e_entry);
2403 printFields(OS, "Entry point address:", Str);
2404 Str = to_string(e->e_phoff) + " (bytes into file)";
2405 printFields(OS, "Start of program headers:", Str);
2406 Str = to_string(e->e_shoff) + " (bytes into file)";
2407 printFields(OS, "Start of section headers:", Str);
2408 Str = "0x" + to_hexString(e->e_flags);
2409 printFields(OS, "Flags:", Str);
2410 Str = to_string(e->e_ehsize) + " (bytes)";
2411 printFields(OS, "Size of this header:", Str);
2412 Str = to_string(e->e_phentsize) + " (bytes)";
2413 printFields(OS, "Size of program headers:", Str);
2414 Str = to_string(e->e_phnum);
2415 printFields(OS, "Number of program headers:", Str);
2416 Str = to_string(e->e_shentsize) + " (bytes)";
2417 printFields(OS, "Size of section headers:", Str);
2418 Str = to_string(e->e_shnum);
2419 printFields(OS, "Number of section headers:", Str);
2420 Str = to_string(e->e_shstrndx);
2421 printFields(OS, "Section header string table index:", Str);
2424 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) {
2425 uint32_t SectionIndex = 0;
2426 bool HasGroups = false;
2427 for (const Elf_Shdr &Sec : Obj->sections()) {
2428 if (Sec.sh_type == ELF::SHT_GROUP) {
2430 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
2431 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
2432 const Elf_Sym *Signature =
2433 Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info);
2434 ArrayRef<Elf_Word> Data = unwrapOrError(
2435 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
2436 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2437 OS << "\n" << getGroupType(Data[0]) << " group section ["
2438 << format_decimal(SectionIndex, 5) << "] `" << Name << "' ["
2439 << StrTable.data() + Signature->st_name << "] contains "
2440 << (Data.size() - 1) << " sections:\n"
2441 << " [Index] Name\n";
2442 for (auto &Ndx : Data.slice(1)) {
2443 auto Sec = unwrapOrError(Obj->getSection(Ndx));
2444 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
2445 OS << " [" << format_decimal(Ndx, 5) << "] " << Name
2452 OS << "There are no section groups in this file.\n";
2455 template <class ELFT>
2456 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
2457 const Elf_Rela &R, bool IsRela) {
2458 std::string Offset, Info, Addend = "", Value;
2459 SmallString<32> RelocName;
2460 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
2461 StringRef TargetName;
2462 const Elf_Sym *Sym = nullptr;
2463 unsigned Width = ELFT::Is64Bits ? 16 : 8;
2464 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2466 // First two fields are bit width dependent. The rest of them are after are
2468 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
2469 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
2470 Sym = Obj->getRelocationSymbol(&R, SymTab);
2471 if (Sym && Sym->getType() == ELF::STT_SECTION) {
2472 const Elf_Shdr *Sec = unwrapOrError(
2473 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
2474 TargetName = unwrapOrError(Obj->getSectionName(Sec));
2476 TargetName = unwrapOrError(Sym->getName(StrTable));
2479 if (Sym && IsRela) {
2486 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
2487 Info = to_string(format_hex_no_prefix(R.r_info, Width));
2489 int64_t RelAddend = R.r_addend;
2491 Addend += to_hexString(std::abs(RelAddend), false);
2494 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
2496 Fields[0].Str = Offset;
2497 Fields[1].Str = Info;
2498 Fields[2].Str = RelocName;
2499 Fields[3].Str = Value;
2500 Fields[4].Str = TargetName;
2501 for (auto &field : Fields)
2507 static inline void printRelocHeader(raw_ostream &OS, bool Is64, bool IsRela) {
2509 OS << " Offset Info Type"
2510 << " Symbol's Value Symbol's Name";
2512 OS << " Offset Info Type Sym. Value "
2515 OS << (IsRela ? " + Addend" : "");
2519 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) {
2520 bool HasRelocSections = false;
2521 for (const Elf_Shdr &Sec : Obj->sections()) {
2522 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA)
2524 HasRelocSections = true;
2525 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2526 unsigned Entries = Sec.getEntityCount();
2527 uintX_t Offset = Sec.sh_offset;
2528 OS << "\nRelocation section '" << Name << "' at offset 0x"
2529 << to_hexString(Offset, false) << " contains " << Entries
2531 printRelocHeader(OS, ELFT::Is64Bits, (Sec.sh_type == ELF::SHT_RELA));
2532 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link));
2533 if (Sec.sh_type == ELF::SHT_REL) {
2534 for (const auto &R : Obj->rels(&Sec)) {
2536 Rela.r_offset = R.r_offset;
2537 Rela.r_info = R.r_info;
2539 printRelocation(Obj, SymTab, Rela, false);
2542 for (const auto &R : Obj->relas(&Sec))
2543 printRelocation(Obj, SymTab, R, true);
2546 if (!HasRelocSections)
2547 OS << "\nThere are no relocations in this file.\n";
2550 std::string getSectionTypeString(unsigned Arch, unsigned Type) {
2551 using namespace ELF;
2557 case SHT_ARM_PREEMPTMAP:
2558 return "ARM_PREEMPTMAP";
2559 case SHT_ARM_ATTRIBUTES:
2560 return "ARM_ATTRIBUTES";
2561 case SHT_ARM_DEBUGOVERLAY:
2562 return "ARM_DEBUGOVERLAY";
2563 case SHT_ARM_OVERLAYSECTION:
2564 return "ARM_OVERLAYSECTION";
2568 case SHT_X86_64_UNWIND:
2569 return "X86_64_UNWIND";
2572 case EM_MIPS_RS3_LE:
2574 case SHT_MIPS_REGINFO:
2575 return "MIPS_REGINFO";
2576 case SHT_MIPS_OPTIONS:
2577 return "MIPS_OPTIONS";
2578 case SHT_MIPS_ABIFLAGS:
2579 return "MIPS_ABIFLAGS";
2607 case SHT_INIT_ARRAY:
2608 return "INIT_ARRAY";
2609 case SHT_FINI_ARRAY:
2610 return "FINI_ARRAY";
2611 case SHT_PREINIT_ARRAY:
2612 return "PREINIT_ARRAY";
2615 case SHT_SYMTAB_SHNDX:
2616 return "SYMTAB SECTION INDICES";
2617 // FIXME: Parse processor specific GNU attributes
2618 case SHT_GNU_ATTRIBUTES:
2619 return "ATTRIBUTES";
2622 case SHT_GNU_verdef:
2624 case SHT_GNU_verneed:
2626 case SHT_GNU_versym:
2634 template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) {
2635 size_t SectionIndex = 0;
2636 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize,
2641 if (ELFT::Is64Bits) {
2648 OS << "There are " << to_string(Obj->getHeader()->e_shnum)
2649 << " section headers, starting at offset "
2650 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n";
2651 OS << "Section Headers:\n";
2652 Field Fields[11] = {{"[Nr]", 2},
2657 {"Size", 65 - Bias},
2663 for (auto &f : Fields)
2667 for (const Elf_Shdr &Sec : Obj->sections()) {
2668 Number = to_string(SectionIndex);
2669 Fields[0].Str = Number;
2670 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec));
2671 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type);
2672 Fields[2].Str = Type;
2673 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width));
2674 Fields[3].Str = Address;
2675 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6));
2676 Fields[4].Str = Offset;
2677 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6));
2678 Fields[5].Str = Size;
2679 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2));
2680 Fields[6].Str = EntrySize;
2681 Flags = getGNUFlags(Sec.sh_flags);
2682 Fields[7].Str = Flags;
2683 Link = to_string(Sec.sh_link);
2684 Fields[8].Str = Link;
2685 Info = to_string(Sec.sh_info);
2686 Fields[9].Str = Info;
2687 Alignment = to_string(Sec.sh_addralign);
2688 Fields[10].Str = Alignment;
2689 OS.PadToColumn(Fields[0].Column);
2690 OS << "[" << right_justify(Fields[0].Str, 2) << "]";
2691 for (int i = 1; i < 7; i++)
2692 printField(Fields[i]);
2693 OS.PadToColumn(Fields[7].Column);
2694 OS << right_justify(Fields[7].Str, 3);
2695 OS.PadToColumn(Fields[8].Column);
2696 OS << right_justify(Fields[8].Str, 2);
2697 OS.PadToColumn(Fields[9].Column);
2698 OS << right_justify(Fields[9].Str, 3);
2699 OS.PadToColumn(Fields[10].Column);
2700 OS << right_justify(Fields[10].Str, 2);
2704 OS << "Key to Flags:\n"
2705 << " W (write), A (alloc), X (execute), M (merge), S (strings), l "
2707 << " I (info), L (link order), G (group), T (TLS), E (exclude),\
2709 << " O (extra OS processing required) o (OS specific),\
2710 p (processor specific)\n";
2713 template <class ELFT>
2714 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name,
2717 OS << "\nSymbol table '" << Name << "' contains " << Entries
2720 OS << "\n Symbol table for image:\n";
2723 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2725 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2728 template <class ELFT>
2729 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj,
2730 const Elf_Sym *Symbol,
2731 const Elf_Sym *FirstSym) {
2732 unsigned SectionIndex = Symbol->st_shndx;
2733 switch (SectionIndex) {
2734 case ELF::SHN_UNDEF:
2738 case ELF::SHN_COMMON:
2740 case ELF::SHN_XINDEX:
2741 SectionIndex = Obj->getExtendedSymbolTableIndex(
2742 Symbol, FirstSym, this->dumper()->getShndxTable());
2745 // Processor specific
2746 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC)
2747 return std::string("PRC[0x") +
2748 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2750 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS)
2751 return std::string("OS[0x") +
2752 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2753 // Architecture reserved:
2754 if (SectionIndex >= ELF::SHN_LORESERVE &&
2755 SectionIndex <= ELF::SHN_HIRESERVE)
2756 return std::string("RSV[0x") +
2757 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2758 // A normal section with an index
2759 return to_string(format_decimal(SectionIndex, 3));
2763 template <class ELFT>
2764 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
2765 const Elf_Sym *FirstSym, StringRef StrTable,
2768 static bool Dynamic = true;
2771 // If this function was called with a different value from IsDynamic
2772 // from last call, happens when we move from dynamic to static symbol
2773 // table, "Num" field should be reset.
2774 if (!Dynamic != !IsDynamic) {
2778 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section;
2780 if (ELFT::Is64Bits) {
2787 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias,
2788 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias};
2789 Num = to_string(format_decimal(Idx++, 6)) + ":";
2790 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width));
2791 Size = to_string(format_decimal(Symbol->st_size, 5));
2792 unsigned char SymbolType = Symbol->getType();
2793 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
2794 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
2795 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
2797 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
2798 unsigned Vis = Symbol->getVisibility();
2799 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
2800 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities));
2801 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym);
2802 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
2803 Fields[0].Str = Num;
2804 Fields[1].Str = Value;
2805 Fields[2].Str = Size;
2806 Fields[3].Str = Type;
2807 Fields[4].Str = Binding;
2808 Fields[5].Str = Visibility;
2809 Fields[6].Str = Section;
2810 Fields[7].Str = Name;
2811 for (auto &Entry : Fields)
2816 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) {
2817 this->dumper()->printSymbolsHelper(true);
2818 this->dumper()->printSymbolsHelper(false);
2821 template <class ELFT>
2822 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
2823 this->dumper()->printSymbolsHelper(true);
2826 static inline std::string printPhdrFlags(unsigned Flag) {
2828 Str = (Flag & PF_R) ? "R" : " ";
2829 Str += (Flag & PF_W) ? "W" : " ";
2830 Str += (Flag & PF_X) ? "E" : " ";
2834 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO
2835 // PT_TLS must only have SHF_TLS sections
2836 template <class ELFT>
2837 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr,
2838 const Elf_Shdr &Sec) {
2839 return (((Sec.sh_flags & ELF::SHF_TLS) &&
2840 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) ||
2841 (Phdr.p_type == ELF::PT_GNU_RELRO))) ||
2842 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS));
2845 // Non-SHT_NOBITS must have its offset inside the segment
2846 // Only non-zero section can be at end of segment
2847 template <class ELFT>
2848 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
2849 if (Sec.sh_type == ELF::SHT_NOBITS)
2852 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
2853 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
2855 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
2856 if (Sec.sh_offset >= Phdr.p_offset)
2857 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset)
2858 /*only non-zero sized sections at end*/ &&
2859 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz));
2863 // SHF_ALLOC must have VMA inside segment
2864 // Only non-zero section can be at end of segment
2865 template <class ELFT>
2866 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
2867 if (!(Sec.sh_flags & ELF::SHF_ALLOC))
2870 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
2871 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
2873 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
2874 if (Sec.sh_addr >= Phdr.p_vaddr)
2875 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) &&
2876 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz));
2880 // No section with zero size must be at start or end of PT_DYNAMIC
2881 template <class ELFT>
2882 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
2883 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0)
2885 // Is section within the phdr both based on offset and VMA ?
2886 return ((Sec.sh_type == ELF::SHT_NOBITS) ||
2887 (Sec.sh_offset > Phdr.p_offset &&
2888 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) &&
2889 (!(Sec.sh_flags & ELF::SHF_ALLOC) ||
2890 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz));
2893 template <class ELFT>
2894 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
2895 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2896 unsigned Width = ELFT::Is64Bits ? 18 : 10;
2897 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7;
2898 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align;
2900 const Elf_Ehdr *Header = Obj->getHeader();
2901 Field Fields[8] = {2, 17, 26, 37 + Bias,
2902 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias};
2903 OS << "\nElf file type is "
2904 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n"
2905 << "Entry point " << format_hex(Header->e_entry, 3) << "\n"
2906 << "There are " << Header->e_phnum << " program headers,"
2907 << " starting at offset " << Header->e_phoff << "\n\n"
2908 << "Program Headers:\n";
2910 OS << " Type Offset VirtAddr PhysAddr "
2911 << " FileSiz MemSiz Flg Align\n";
2913 OS << " Type Offset VirtAddr PhysAddr FileSiz "
2914 << "MemSiz Flg Align\n";
2915 for (const auto &Phdr : Obj->program_headers()) {
2916 Type = getElfPtType(Header->e_machine, Phdr.p_type);
2917 Offset = to_string(format_hex(Phdr.p_offset, 8));
2918 VMA = to_string(format_hex(Phdr.p_vaddr, Width));
2919 LMA = to_string(format_hex(Phdr.p_paddr, Width));
2920 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth));
2921 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth));
2922 Flag = printPhdrFlags(Phdr.p_flags);
2923 Align = to_string(format_hex(Phdr.p_align, 1));
2924 Fields[0].Str = Type;
2925 Fields[1].Str = Offset;
2926 Fields[2].Str = VMA;
2927 Fields[3].Str = LMA;
2928 Fields[4].Str = FileSz;
2929 Fields[5].Str = MemSz;
2930 Fields[6].Str = Flag;
2931 Fields[7].Str = Align;
2932 for (auto Field : Fields)
2934 if (Phdr.p_type == ELF::PT_INTERP) {
2935 OS << "\n [Requesting program interpreter: ";
2936 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]";
2940 OS << "\n Section to Segment mapping:\n Segment Sections...\n";
2942 for (const Elf_Phdr &Phdr : Obj->program_headers()) {
2943 std::string Sections;
2944 OS << format(" %2.2d ", Phnum++);
2945 for (const Elf_Shdr &Sec : Obj->sections()) {
2946 // Check if each section is in a segment and then print mapping.
2947 // readelf additionally makes sure it does not print zero sized sections
2948 // at end of segments and for PT_DYNAMIC both start and end of section
2949 // .tbss must only be shown in PT_TLS section.
2950 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) &&
2951 ((Sec.sh_flags & ELF::SHF_TLS) != 0) &&
2952 Phdr.p_type != ELF::PT_TLS;
2953 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) &&
2954 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) &&
2955 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL))
2956 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " ";
2958 OS << Sections << "\n";
2963 template <class ELFT>
2964 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R,
2966 SmallString<32> RelocName;
2967 StringRef SymbolName;
2968 unsigned Width = ELFT::Is64Bits ? 16 : 8;
2969 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2970 // First two fields are bit width dependent. The rest of them are after are
2972 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
2974 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL());
2975 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
2976 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
2978 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
2979 std::string Addend = "", Info, Offset, Value;
2980 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
2981 Info = to_string(format_hex_no_prefix(R.r_info, Width));
2982 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
2983 int64_t RelAddend = R.r_addend;
2984 if (SymbolName.size() && IsRela) {
2991 if (!SymbolName.size() && Sym->getValue() == 0)
2995 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1));
2998 Fields[0].Str = Offset;
2999 Fields[1].Str = Info;
3000 Fields[2].Str = RelocName.c_str();
3001 Fields[3].Str = Value;
3002 Fields[4].Str = SymbolName;
3003 for (auto &Field : Fields)
3009 template <class ELFT>
3010 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3011 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3012 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3013 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3014 if (DynRelaRegion.Size > 0) {
3015 OS << "\n'RELA' relocation section at offset "
3016 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) -
3018 1) << " contains " << DynRelaRegion.Size << " bytes:\n";
3019 printRelocHeader(OS, ELFT::Is64Bits, true);
3020 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3021 printDynamicRelocation(Obj, Rela, true);
3023 if (DynRelRegion.Size > 0) {
3024 OS << "\n'REL' relocation section at offset "
3025 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) -
3027 1) << " contains " << DynRelRegion.Size << " bytes:\n";
3028 printRelocHeader(OS, ELFT::Is64Bits, false);
3029 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3031 Rela.r_offset = Rel.r_offset;
3032 Rela.r_info = Rel.r_info;
3034 printDynamicRelocation(Obj, Rela, false);
3037 if (DynPLTRelRegion.Size) {
3038 OS << "\n'PLT' relocation section at offset "
3039 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) -
3041 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n";
3043 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) {
3044 printRelocHeader(OS, ELFT::Is64Bits, true);
3045 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
3046 printDynamicRelocation(Obj, Rela, true);
3048 printRelocHeader(OS, ELFT::Is64Bits, false);
3049 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
3051 Rela.r_offset = Rel.r_offset;
3052 Rela.r_info = Rel.r_info;
3054 printDynamicRelocation(Obj, Rela, false);
3059 // Hash histogram shows statistics of how efficient the hash was for the
3060 // dynamic symbol table. The table shows number of hash buckets for different
3061 // lengths of chains as absolute number and percentage of the total buckets.
3062 // Additionally cumulative coverage of symbols for each set of buckets.
3063 template <class ELFT>
3064 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
3066 const Elf_Hash *HashTable = this->dumper()->getHashTable();
3067 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable();
3069 // Print histogram for .hash section
3071 size_t NBucket = HashTable->nbucket;
3072 size_t NChain = HashTable->nchain;
3073 ArrayRef<Elf_Word> Buckets = HashTable->buckets();
3074 ArrayRef<Elf_Word> Chains = HashTable->chains();
3075 size_t TotalSyms = 0;
3076 // If hash table is correct, we have at least chains with 0 length
3077 size_t MaxChain = 1;
3078 size_t CumulativeNonZero = 0;
3080 if (NChain == 0 || NBucket == 0)
3083 std::vector<size_t> ChainLen(NBucket, 0);
3084 // Go over all buckets and and note chain lengths of each bucket (total
3085 // unique chain lengths).
3086 for (size_t B = 0; B < NBucket; B++) {
3087 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C])
3088 if (MaxChain <= ++ChainLen[B])
3090 TotalSyms += ChainLen[B];
3096 std::vector<size_t> Count(MaxChain, 0) ;
3097 // Count how long is the chain for each bucket
3098 for (size_t B = 0; B < NBucket; B++)
3099 ++Count[ChainLen[B]];
3100 // Print Number of buckets with each chain lengths and their cumulative
3101 // coverage of the symbols
3102 OS << "Histogram for bucket list length (total of " << NBucket
3104 << " Length Number % of total Coverage\n";
3105 for (size_t I = 0; I < MaxChain; I++) {
3106 CumulativeNonZero += Count[I] * I;
3107 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3108 (Count[I] * 100.0) / NBucket,
3109 (CumulativeNonZero * 100.0) / TotalSyms);
3113 // Print histogram for .gnu.hash section
3115 size_t NBucket = GnuHashTable->nbuckets;
3116 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets();
3117 unsigned NumSyms = this->dumper()->dynamic_symbols().size();
3120 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms);
3121 size_t Symndx = GnuHashTable->symndx;
3122 size_t TotalSyms = 0;
3123 size_t MaxChain = 1;
3124 size_t CumulativeNonZero = 0;
3126 if (Chains.size() == 0 || NBucket == 0)
3129 std::vector<size_t> ChainLen(NBucket, 0);
3131 for (size_t B = 0; B < NBucket; B++) {
3135 for (size_t C = Buckets[B] - Symndx;
3136 C < Chains.size() && (Chains[C] & 1) == 0; C++)
3137 if (MaxChain < ++Len)
3147 std::vector<size_t> Count(MaxChain, 0) ;
3148 for (size_t B = 0; B < NBucket; B++)
3149 ++Count[ChainLen[B]];
3150 // Print Number of buckets with each chain lengths and their cumulative
3151 // coverage of the symbols
3152 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket
3154 << " Length Number % of total Coverage\n";
3155 for (size_t I = 0; I <MaxChain; I++) {
3156 CumulativeNonZero += Count[I] * I;
3157 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3158 (Count[I] * 100.0) / NBucket,
3159 (CumulativeNonZero * 100.0) / TotalSyms);
3164 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
3165 const Elf_Ehdr *e = Obj->getHeader();
3167 DictScope D(W, "ElfHeader");
3169 DictScope D(W, "Ident");
3170 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4));
3171 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
3172 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA],
3173 makeArrayRef(ElfDataEncoding));
3174 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]);
3176 // Handle architecture specific OS/ABI values.
3177 if (e->e_machine == ELF::EM_AMDGPU &&
3178 e->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA)
3179 W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA);
3181 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI],
3182 makeArrayRef(ElfOSABI));
3183 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]);
3184 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD));
3187 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType));
3188 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType));
3189 W.printNumber("Version", e->e_version);
3190 W.printHex("Entry", e->e_entry);
3191 W.printHex("ProgramHeaderOffset", e->e_phoff);
3192 W.printHex("SectionHeaderOffset", e->e_shoff);
3193 if (e->e_machine == EM_MIPS)
3194 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags),
3195 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
3196 unsigned(ELF::EF_MIPS_MACH));
3198 W.printFlags("Flags", e->e_flags);
3199 W.printNumber("HeaderSize", e->e_ehsize);
3200 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize);
3201 W.printNumber("ProgramHeaderCount", e->e_phnum);
3202 W.printNumber("SectionHeaderEntrySize", e->e_shentsize);
3203 W.printNumber("SectionHeaderCount", e->e_shnum);
3204 W.printNumber("StringTableSectionIndex", e->e_shstrndx);
3208 template <class ELFT>
3209 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) {
3210 DictScope Lists(W, "Groups");
3211 uint32_t SectionIndex = 0;
3212 bool HasGroups = false;
3213 for (const Elf_Shdr &Sec : Obj->sections()) {
3214 if (Sec.sh_type == ELF::SHT_GROUP) {
3216 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
3217 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
3218 const Elf_Sym *Sym = Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info);
3219 auto Data = unwrapOrError(
3220 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
3221 DictScope D(W, "Group");
3222 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3223 W.printNumber("Name", Name, Sec.sh_name);
3224 W.printNumber("Index", SectionIndex);
3225 W.printHex("Type", getGroupType(Data[0]), Data[0]);
3226 W.startLine() << "Signature: " << StrTable.data() + Sym->st_name << "\n";
3228 ListScope L(W, "Section(s) in group");
3230 while (Member < Data.size()) {
3231 auto Sec = unwrapOrError(Obj->getSection(Data[Member]));
3232 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
3233 W.startLine() << Name << " (" << Data[Member++] << ")\n";
3240 W.startLine() << "There are no group sections in the file.\n";
3243 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) {
3244 ListScope D(W, "Relocations");
3246 int SectionNumber = -1;
3247 for (const Elf_Shdr &Sec : Obj->sections()) {
3250 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA)
3253 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3255 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
3258 printRelocations(&Sec, Obj);
3261 W.startLine() << "}\n";
3265 template <class ELFT>
3266 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) {
3267 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link));
3269 switch (Sec->sh_type) {
3271 for (const Elf_Rel &R : Obj->rels(Sec)) {
3273 Rela.r_offset = R.r_offset;
3274 Rela.r_info = R.r_info;
3276 printRelocation(Obj, Rela, SymTab);
3280 for (const Elf_Rela &R : Obj->relas(Sec))
3281 printRelocation(Obj, R, SymTab);
3286 template <class ELFT>
3287 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel,
3288 const Elf_Shdr *SymTab) {
3289 SmallString<32> RelocName;
3290 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
3291 StringRef TargetName;
3292 const Elf_Sym *Sym = Obj->getRelocationSymbol(&Rel, SymTab);
3293 if (Sym && Sym->getType() == ELF::STT_SECTION) {
3294 const Elf_Shdr *Sec = unwrapOrError(
3295 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
3296 TargetName = unwrapOrError(Obj->getSectionName(Sec));
3298 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
3299 TargetName = unwrapOrError(Sym->getName(StrTable));
3302 if (opts::ExpandRelocs) {
3303 DictScope Group(W, "Relocation");
3304 W.printHex("Offset", Rel.r_offset);
3305 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
3306 W.printNumber("Symbol", TargetName.size() > 0 ? TargetName : "-",
3307 Rel.getSymbol(Obj->isMips64EL()));
3308 W.printHex("Addend", Rel.r_addend);
3310 raw_ostream &OS = W.startLine();
3311 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
3312 << (TargetName.size() > 0 ? TargetName : "-") << " "
3313 << W.hex(Rel.r_addend) << "\n";
3317 template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) {
3318 ListScope SectionsD(W, "Sections");
3320 int SectionIndex = -1;
3321 for (const Elf_Shdr &Sec : Obj->sections()) {
3324 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3326 DictScope SectionD(W, "Section");
3327 W.printNumber("Index", SectionIndex);
3328 W.printNumber("Name", Name, Sec.sh_name);
3330 getElfSectionType(Obj->getHeader()->e_machine, Sec.sh_type),
3332 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags),
3333 std::end(ElfSectionFlags));
3334 switch (Obj->getHeader()->e_machine) {
3336 SectionFlags.insert(SectionFlags.end(), std::begin(ElfAMDGPUSectionFlags),
3337 std::end(ElfAMDGPUSectionFlags));
3340 SectionFlags.insert(SectionFlags.end(),
3341 std::begin(ElfHexagonSectionFlags),
3342 std::end(ElfHexagonSectionFlags));
3345 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags),
3346 std::end(ElfMipsSectionFlags));
3349 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags),
3350 std::end(ElfX86_64SectionFlags));
3353 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags),
3354 std::end(ElfXCoreSectionFlags));
3360 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags));
3361 W.printHex("Address", Sec.sh_addr);
3362 W.printHex("Offset", Sec.sh_offset);
3363 W.printNumber("Size", Sec.sh_size);
3364 W.printNumber("Link", Sec.sh_link);
3365 W.printNumber("Info", Sec.sh_info);
3366 W.printNumber("AddressAlignment", Sec.sh_addralign);
3367 W.printNumber("EntrySize", Sec.sh_entsize);
3369 if (opts::SectionRelocations) {
3370 ListScope D(W, "Relocations");
3371 printRelocations(&Sec, Obj);
3374 if (opts::SectionSymbols) {
3375 ListScope D(W, "Symbols");
3376 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec();
3377 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
3379 for (const Elf_Sym &Sym : Obj->symbols(Symtab)) {
3380 const Elf_Shdr *SymSec = unwrapOrError(
3381 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable()));
3383 printSymbol(Obj, &Sym, Obj->symbol_begin(Symtab), StrTable, false);
3387 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) {
3388 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec));
3389 W.printBinaryBlock("SectionData",
3390 StringRef((const char *)Data.data(), Data.size()));
3395 template <class ELFT>
3396 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
3397 const Elf_Sym *First, StringRef StrTable,
3399 unsigned SectionIndex = 0;
3400 StringRef SectionName;
3401 getSectionNameIndex(*Obj, Symbol, First, this->dumper()->getShndxTable(),
3402 SectionName, SectionIndex);
3403 std::string FullSymbolName =
3404 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
3405 unsigned char SymbolType = Symbol->getType();
3407 DictScope D(W, "Symbol");
3408 W.printNumber("Name", FullSymbolName, Symbol->st_name);
3409 W.printHex("Value", Symbol->st_value);
3410 W.printNumber("Size", Symbol->st_size);
3411 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
3412 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
3413 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
3414 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes));
3416 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes));
3417 if (Symbol->st_other == 0)
3418 // Usually st_other flag is zero. Do not pollute the output
3419 // by flags enumeration in that case.
3420 W.printNumber("Other", 0);
3422 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags),
3423 std::end(ElfSymOtherFlags));
3424 if (Obj->getHeader()->e_machine == EM_MIPS) {
3425 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16
3426 // flag overlapped with other ST_MIPS_xxx flags. So consider both
3427 // cases separately.
3428 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16)
3429 SymOtherFlags.insert(SymOtherFlags.end(),
3430 std::begin(ElfMips16SymOtherFlags),
3431 std::end(ElfMips16SymOtherFlags));
3433 SymOtherFlags.insert(SymOtherFlags.end(),
3434 std::begin(ElfMipsSymOtherFlags),
3435 std::end(ElfMipsSymOtherFlags));
3437 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u);
3439 W.printHex("Section", SectionName, SectionIndex);
3442 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) {
3443 ListScope Group(W, "Symbols");
3444 this->dumper()->printSymbolsHelper(false);
3447 template <class ELFT>
3448 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
3449 ListScope Group(W, "DynamicSymbols");
3450 this->dumper()->printSymbolsHelper(true);
3453 template <class ELFT>
3454 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3455 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3456 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3457 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3458 if (DynRelRegion.Size && DynRelaRegion.Size)
3459 report_fatal_error("There are both REL and RELA dynamic relocations");
3460 W.startLine() << "Dynamic Relocations {\n";
3462 if (DynRelaRegion.Size > 0)
3463 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3464 printDynamicRelocation(Obj, Rela);
3466 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3468 Rela.r_offset = Rel.r_offset;
3469 Rela.r_info = Rel.r_info;
3471 printDynamicRelocation(Obj, Rela);
3473 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela))
3474 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
3475 printDynamicRelocation(Obj, Rela);
3477 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
3479 Rela.r_offset = Rel.r_offset;
3480 Rela.r_info = Rel.r_info;
3482 printDynamicRelocation(Obj, Rela);
3485 W.startLine() << "}\n";
3488 template <class ELFT>
3489 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) {
3490 SmallString<32> RelocName;
3491 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
3492 StringRef SymbolName;
3493 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL());
3494 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
3496 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
3497 if (opts::ExpandRelocs) {
3498 DictScope Group(W, "Relocation");
3499 W.printHex("Offset", Rel.r_offset);
3500 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
3501 W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
3502 W.printHex("Addend", Rel.r_addend);
3504 raw_ostream &OS = W.startLine();
3505 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
3506 << (SymbolName.size() > 0 ? SymbolName : "-") << " "
3507 << W.hex(Rel.r_addend) << "\n";
3511 template <class ELFT>
3512 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
3513 ListScope L(W, "ProgramHeaders");
3515 for (const Elf_Phdr &Phdr : Obj->program_headers()) {
3516 DictScope P(W, "ProgramHeader");
3518 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type),
3520 W.printHex("Offset", Phdr.p_offset);
3521 W.printHex("VirtualAddress", Phdr.p_vaddr);
3522 W.printHex("PhysicalAddress", Phdr.p_paddr);
3523 W.printNumber("FileSize", Phdr.p_filesz);
3524 W.printNumber("MemSize", Phdr.p_memsz);
3525 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags));
3526 W.printNumber("Alignment", Phdr.p_align);
3529 template <class ELFT>
3530 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
3531 W.startLine() << "Hash Histogram not implemented!\n";