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 "ARMEHABIPrinter.h"
17 #include "ObjDumper.h"
18 #include "StackMapPrinter.h"
19 #include "llvm-readobj.h"
20 #include "llvm/ADT/Optional.h"
21 #include "llvm/ADT/SmallString.h"
22 #include "llvm/ADT/StringExtras.h"
23 #include "llvm/Object/ELFObjectFile.h"
24 #include "llvm/Support/ARMAttributeParser.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_Rel_Range Elf_Rel_Range; \
60 typedef typename ELFO::Elf_Rela_Range Elf_Rela_Range; \
61 typedef typename ELFO::Elf_Phdr Elf_Phdr; \
62 typedef typename ELFO::Elf_Half Elf_Half; \
63 typedef typename ELFO::Elf_Ehdr Elf_Ehdr; \
64 typedef typename ELFO::Elf_Word Elf_Word; \
65 typedef typename ELFO::Elf_Hash Elf_Hash; \
66 typedef typename ELFO::Elf_GnuHash Elf_GnuHash; \
67 typedef typename ELFO::Elf_Sym_Range Elf_Sym_Range; \
68 typedef typename ELFO::Elf_Versym Elf_Versym; \
69 typedef typename ELFO::Elf_Verneed Elf_Verneed; \
70 typedef typename ELFO::Elf_Vernaux Elf_Vernaux; \
71 typedef typename ELFO::Elf_Verdef Elf_Verdef; \
72 typedef typename ELFO::Elf_Verdaux Elf_Verdaux; \
73 typedef typename ELFO::uintX_t uintX_t;
77 template <class ELFT> class DumpStyle;
79 /// Represents a contiguous uniform range in the file. We cannot just create a
80 /// range directly because when creating one of these from the .dynamic table
81 /// the size, entity size and virtual address are different entries in arbitrary
82 /// order (DT_REL, DT_RELSZ, DT_RELENT for example).
83 struct DynRegionInfo {
84 DynRegionInfo() : Addr(nullptr), Size(0), EntSize(0) {}
85 DynRegionInfo(const void *A, uint64_t S, uint64_t ES)
86 : Addr(A), Size(S), EntSize(ES) {}
87 /// \brief Address in current address space.
89 /// \brief Size in bytes of the region.
91 /// \brief Size of each entity in the region.
94 template <typename Type> ArrayRef<Type> getAsArrayRef() const {
95 const Type *Start = reinterpret_cast<const Type *>(Addr);
97 return {Start, Start};
98 if (EntSize != sizeof(Type) || Size % EntSize)
99 reportError("Invalid entity size");
100 return {Start, Start + (Size / EntSize)};
104 template<typename ELFT>
105 class ELFDumper : public ObjDumper {
107 ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer);
109 void printFileHeaders() override;
110 void printSections() override;
111 void printRelocations() override;
112 void printDynamicRelocations() override;
113 void printSymbols() override;
114 void printDynamicSymbols() override;
115 void printUnwindInfo() override;
117 void printDynamicTable() override;
118 void printNeededLibraries() override;
119 void printProgramHeaders() override;
120 void printHashTable() override;
121 void printGnuHashTable() override;
122 void printLoadName() override;
123 void printVersionInfo() override;
124 void printGroupSections() override;
126 void printAttributes() override;
127 void printMipsPLTGOT() override;
128 void printMipsABIFlags() override;
129 void printMipsReginfo() override;
130 void printMipsOptions() override;
132 void printAMDGPUCodeObjectMetadata() override;
134 void printStackMap() const override;
136 void printHashHistogram() override;
138 void printNotes() override;
141 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle;
142 TYPEDEF_ELF_TYPES(ELFT)
144 DynRegionInfo checkDRI(DynRegionInfo DRI) {
145 if (DRI.Addr < Obj->base() ||
146 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize())
147 error(llvm::object::object_error::parse_failed);
151 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) {
152 return checkDRI({Obj->base() + P->p_offset, P->p_filesz, EntSize});
155 DynRegionInfo createDRIFrom(const Elf_Shdr *S) {
156 return checkDRI({Obj->base() + S->sh_offset, S->sh_size, S->sh_entsize});
159 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments);
161 void printValue(uint64_t Type, uint64_t Value);
163 StringRef getDynamicString(uint64_t Offset) const;
164 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb,
165 bool &IsDefault) const;
166 void LoadVersionMap() const;
167 void LoadVersionNeeds(const Elf_Shdr *ec) const;
168 void LoadVersionDefs(const Elf_Shdr *sec) const;
171 DynRegionInfo DynRelRegion;
172 DynRegionInfo DynRelaRegion;
173 DynRegionInfo DynPLTRelRegion;
174 DynRegionInfo DynSymRegion;
175 DynRegionInfo DynamicTable;
176 StringRef DynamicStringTable;
178 const Elf_Hash *HashTable = nullptr;
179 const Elf_GnuHash *GnuHashTable = nullptr;
180 const Elf_Shdr *DotSymtabSec = nullptr;
181 StringRef DynSymtabName;
182 ArrayRef<Elf_Word> ShndxTable;
184 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version
185 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r
186 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d
188 // Records for each version index the corresponding Verdef or Vernaux entry.
189 // This is filled the first time LoadVersionMap() is called.
190 class VersionMapEntry : public PointerIntPair<const void *, 1> {
192 // If the integer is 0, this is an Elf_Verdef*.
193 // If the integer is 1, this is an Elf_Vernaux*.
194 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {}
195 VersionMapEntry(const Elf_Verdef *verdef)
196 : PointerIntPair<const void *, 1>(verdef, 0) {}
197 VersionMapEntry(const Elf_Vernaux *vernaux)
198 : PointerIntPair<const void *, 1>(vernaux, 1) {}
199 bool isNull() const { return getPointer() == nullptr; }
200 bool isVerdef() const { return !isNull() && getInt() == 0; }
201 bool isVernaux() const { return !isNull() && getInt() == 1; }
202 const Elf_Verdef *getVerdef() const {
203 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr;
205 const Elf_Vernaux *getVernaux() const {
206 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr;
209 mutable SmallVector<VersionMapEntry, 16> VersionMap;
212 Elf_Dyn_Range dynamic_table() const {
213 return DynamicTable.getAsArrayRef<Elf_Dyn>();
216 Elf_Sym_Range dynamic_symbols() const {
217 return DynSymRegion.getAsArrayRef<Elf_Sym>();
220 Elf_Rel_Range dyn_rels() const;
221 Elf_Rela_Range dyn_relas() const;
222 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable,
223 bool IsDynamic) const;
225 void printSymbolsHelper(bool IsDynamic) const;
226 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; }
227 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; }
228 StringRef getDynamicStringTable() const { return DynamicStringTable; }
229 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; }
230 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; }
231 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; }
232 const Elf_Hash *getHashTable() const { return HashTable; }
233 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; }
236 template <class ELFT>
237 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const {
238 StringRef StrTable, SymtabName;
240 Elf_Sym_Range Syms(nullptr, nullptr);
242 StrTable = DynamicStringTable;
243 Syms = dynamic_symbols();
244 SymtabName = DynSymtabName;
245 if (DynSymRegion.Addr)
246 Entries = DynSymRegion.Size / DynSymRegion.EntSize;
250 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec));
251 Syms = unwrapOrError(Obj->symbols(DotSymtabSec));
252 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec));
253 Entries = DotSymtabSec->getEntityCount();
255 if (Syms.begin() == Syms.end())
257 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries);
258 for (const auto &Sym : Syms)
259 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic);
262 template <typename ELFT> class DumpStyle {
264 using Elf_Shdr = typename ELFFile<ELFT>::Elf_Shdr;
265 using Elf_Sym = typename ELFFile<ELFT>::Elf_Sym;
267 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {}
268 virtual ~DumpStyle() {}
269 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0;
270 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0;
271 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0;
272 virtual void printSections(const ELFFile<ELFT> *Obj) = 0;
273 virtual void printSymbols(const ELFFile<ELFT> *Obj) = 0;
274 virtual void printDynamicSymbols(const ELFFile<ELFT> *Obj) = 0;
275 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0;
276 virtual void printSymtabMessage(const ELFFile<ELFT> *obj, StringRef Name,
280 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol,
281 const Elf_Sym *FirstSym, StringRef StrTable,
283 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj) = 0;
284 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0;
285 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0;
286 const ELFDumper<ELFT> *dumper() const { return Dumper; }
288 const ELFDumper<ELFT> *Dumper;
291 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> {
292 formatted_raw_ostream OS;
294 TYPEDEF_ELF_TYPES(ELFT)
295 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
296 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {}
297 void printFileHeaders(const ELFO *Obj) override;
298 void printGroupSections(const ELFFile<ELFT> *Obj) override;
299 void printRelocations(const ELFO *Obj) override;
300 void printSections(const ELFO *Obj) override;
301 void printSymbols(const ELFO *Obj) override;
302 void printDynamicSymbols(const ELFO *Obj) override;
303 void printDynamicRelocations(const ELFO *Obj) override;
304 virtual void printSymtabMessage(const ELFO *Obj, StringRef Name,
305 size_t Offset) override;
306 void printProgramHeaders(const ELFO *Obj) override;
307 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
308 void printNotes(const ELFFile<ELFT> *Obj) override;
314 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {}
315 Field(unsigned Col) : Str(""), Column(Col) {}
318 template <typename T, typename TEnum>
319 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) {
320 for (const auto &EnumItem : EnumValues)
321 if (EnumItem.Value == Value)
322 return EnumItem.AltName;
323 return to_hexString(Value, false);
326 formatted_raw_ostream &printField(struct Field F) {
328 OS.PadToColumn(F.Column);
333 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym,
334 StringRef StrTable, uint32_t Bucket);
335 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
336 const Elf_Rela &R, bool IsRela);
337 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
338 StringRef StrTable, bool IsDynamic) override;
339 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol,
340 const Elf_Sym *FirstSym);
341 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela);
342 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
343 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
344 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
345 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
348 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> {
350 TYPEDEF_ELF_TYPES(ELFT)
351 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
352 : DumpStyle<ELFT>(Dumper), W(W) {}
354 void printFileHeaders(const ELFO *Obj) override;
355 void printGroupSections(const ELFFile<ELFT> *Obj) override;
356 void printRelocations(const ELFO *Obj) override;
357 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj);
358 void printSections(const ELFO *Obj) override;
359 void printSymbols(const ELFO *Obj) override;
360 void printDynamicSymbols(const ELFO *Obj) override;
361 void printDynamicRelocations(const ELFO *Obj) override;
362 void printProgramHeaders(const ELFO *Obj) override;
363 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
364 void printNotes(const ELFFile<ELFT> *Obj) override;
367 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab);
368 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel);
369 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
370 StringRef StrTable, bool IsDynamic) override;
378 template <class ELFT>
379 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj,
380 ScopedPrinter &Writer,
381 std::unique_ptr<ObjDumper> &Result) {
382 Result.reset(new ELFDumper<ELFT>(Obj, Writer));
383 return readobj_error::success;
386 std::error_code createELFDumper(const object::ObjectFile *Obj,
387 ScopedPrinter &Writer,
388 std::unique_ptr<ObjDumper> &Result) {
389 // Little-endian 32-bit
390 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
391 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
394 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
395 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
397 // Little-endian 64-bit
398 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
399 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
402 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
403 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
405 return readobj_error::unsupported_obj_file_format;
410 // Iterate through the versions needed section, and place each Elf_Vernaux
411 // in the VersionMap according to its index.
412 template <class ELFT>
413 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
414 unsigned vn_size = sec->sh_size; // Size of section in bytes
415 unsigned vn_count = sec->sh_info; // Number of Verneed entries
416 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
417 const char *sec_end = sec_start + vn_size;
418 // The first Verneed entry is at the start of the section.
419 const char *p = sec_start;
420 for (unsigned i = 0; i < vn_count; i++) {
421 if (p + sizeof(Elf_Verneed) > sec_end)
422 report_fatal_error("Section ended unexpectedly while scanning "
423 "version needed records.");
424 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
425 if (vn->vn_version != ELF::VER_NEED_CURRENT)
426 report_fatal_error("Unexpected verneed version");
427 // Iterate through the Vernaux entries
428 const char *paux = p + vn->vn_aux;
429 for (unsigned j = 0; j < vn->vn_cnt; j++) {
430 if (paux + sizeof(Elf_Vernaux) > sec_end)
431 report_fatal_error("Section ended unexpected while scanning auxiliary "
432 "version needed records.");
433 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
434 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
435 if (index >= VersionMap.size())
436 VersionMap.resize(index + 1);
437 VersionMap[index] = VersionMapEntry(vna);
438 paux += vna->vna_next;
444 // Iterate through the version definitions, and place each Elf_Verdef
445 // in the VersionMap according to its index.
446 template <class ELFT>
447 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
448 unsigned vd_size = sec->sh_size; // Size of section in bytes
449 unsigned vd_count = sec->sh_info; // Number of Verdef entries
450 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
451 const char *sec_end = sec_start + vd_size;
452 // The first Verdef entry is at the start of the section.
453 const char *p = sec_start;
454 for (unsigned i = 0; i < vd_count; i++) {
455 if (p + sizeof(Elf_Verdef) > sec_end)
456 report_fatal_error("Section ended unexpectedly while scanning "
457 "version definitions.");
458 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
459 if (vd->vd_version != ELF::VER_DEF_CURRENT)
460 report_fatal_error("Unexpected verdef version");
461 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
462 if (index >= VersionMap.size())
463 VersionMap.resize(index + 1);
464 VersionMap[index] = VersionMapEntry(vd);
469 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const {
470 // If there is no dynamic symtab or version table, there is nothing to do.
471 if (!DynSymRegion.Addr || !dot_gnu_version_sec)
474 // Has the VersionMap already been loaded?
475 if (VersionMap.size() > 0)
478 // The first two version indexes are reserved.
479 // Index 0 is LOCAL, index 1 is GLOBAL.
480 VersionMap.push_back(VersionMapEntry());
481 VersionMap.push_back(VersionMapEntry());
483 if (dot_gnu_version_d_sec)
484 LoadVersionDefs(dot_gnu_version_d_sec);
486 if (dot_gnu_version_r_sec)
487 LoadVersionNeeds(dot_gnu_version_r_sec);
490 template <typename ELFO, class ELFT>
491 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
492 const typename ELFO::Elf_Shdr *Sec,
494 DictScope SS(W, "Version symbols");
497 StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
498 W.printNumber("Section Name", Name, Sec->sh_name);
499 W.printHex("Address", Sec->sh_addr);
500 W.printHex("Offset", Sec->sh_offset);
501 W.printNumber("Link", Sec->sh_link);
503 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset;
504 StringRef StrTable = Dumper->getDynamicStringTable();
506 // Same number of entries in the dynamic symbol table (DT_SYMTAB).
507 ListScope Syms(W, "Symbols");
508 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) {
509 DictScope S(W, "Symbol");
510 std::string FullSymbolName =
511 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */);
512 W.printNumber("Version", *P);
513 W.printString("Name", FullSymbolName);
514 P += sizeof(typename ELFO::Elf_Half);
518 static const EnumEntry<unsigned> SymVersionFlags[] = {
519 {"Base", "BASE", VER_FLG_BASE},
520 {"Weak", "WEAK", VER_FLG_WEAK},
521 {"Info", "INFO", VER_FLG_INFO}};
523 template <typename ELFO, class ELFT>
524 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper,
526 const typename ELFO::Elf_Shdr *Sec,
528 typedef typename ELFO::Elf_Verdef VerDef;
529 typedef typename ELFO::Elf_Verdaux VerdAux;
531 DictScope SD(W, "SHT_GNU_verdef");
535 // The number of entries in the section SHT_GNU_verdef
536 // is determined by DT_VERDEFNUM tag.
537 unsigned VerDefsNum = 0;
538 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) {
539 if (Dyn.d_tag == DT_VERDEFNUM)
540 VerDefsNum = Dyn.d_un.d_val;
542 const uint8_t *SecStartAddress =
543 (const uint8_t *)Obj->base() + Sec->sh_offset;
544 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size;
545 const uint8_t *P = SecStartAddress;
546 const typename ELFO::Elf_Shdr *StrTab =
547 unwrapOrError(Obj->getSection(Sec->sh_link));
549 while (VerDefsNum--) {
550 if (P + sizeof(VerDef) > SecEndAddress)
551 report_fatal_error("invalid offset in the section");
553 auto *VD = reinterpret_cast<const VerDef *>(P);
554 DictScope Def(W, "Definition");
555 W.printNumber("Version", VD->vd_version);
556 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags));
557 W.printNumber("Index", VD->vd_ndx);
558 W.printNumber("Hash", VD->vd_hash);
559 W.printString("Name",
560 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
561 VD->getAux()->vda_name)));
563 report_fatal_error("at least one definition string must exist");
565 report_fatal_error("more than one predecessor is not expected");
567 if (VD->vd_cnt == 2) {
568 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next;
569 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux);
570 W.printString("Predecessor",
571 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
579 template <typename ELFO, class ELFT>
580 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper,
582 const typename ELFO::Elf_Shdr *Sec,
584 typedef typename ELFO::Elf_Verneed VerNeed;
585 typedef typename ELFO::Elf_Vernaux VernAux;
587 DictScope SD(W, "SHT_GNU_verneed");
591 unsigned VerNeedNum = 0;
592 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table())
593 if (Dyn.d_tag == DT_VERNEEDNUM)
594 VerNeedNum = Dyn.d_un.d_val;
596 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset;
597 const typename ELFO::Elf_Shdr *StrTab =
598 unwrapOrError(Obj->getSection(Sec->sh_link));
600 const uint8_t *P = SecData;
601 for (unsigned I = 0; I < VerNeedNum; ++I) {
602 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P);
603 DictScope Entry(W, "Dependency");
604 W.printNumber("Version", Need->vn_version);
605 W.printNumber("Count", Need->vn_cnt);
606 W.printString("FileName",
607 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
610 const uint8_t *PAux = P + Need->vn_aux;
611 for (unsigned J = 0; J < Need->vn_cnt; ++J) {
612 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux);
613 DictScope Entry(W, "Entry");
614 W.printNumber("Hash", Aux->vna_hash);
615 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags));
616 W.printNumber("Index", Aux->vna_other);
617 W.printString("Name",
618 StringRef((const char *)(Obj->base() + StrTab->sh_offset +
620 PAux += Aux->vna_next;
626 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() {
627 // Dump version symbol section.
628 printVersionSymbolSection(this, Obj, dot_gnu_version_sec, W);
630 // Dump version definition section.
631 printVersionDefinitionSection(this, Obj, dot_gnu_version_d_sec, W);
633 // Dump version dependency section.
634 printVersionDependencySection(this, Obj, dot_gnu_version_r_sec, W);
637 template <typename ELFT>
638 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab,
640 bool &IsDefault) const {
641 // This is a dynamic symbol. Look in the GNU symbol version table.
642 if (!dot_gnu_version_sec) {
645 return StringRef("");
648 // Determine the position in the symbol table of this entry.
649 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) -
650 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) /
653 // Get the corresponding version index entry
654 const Elf_Versym *vs = unwrapOrError(
655 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index));
656 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
658 // Special markers for unversioned symbols.
659 if (version_index == ELF::VER_NDX_LOCAL ||
660 version_index == ELF::VER_NDX_GLOBAL) {
662 return StringRef("");
665 // Lookup this symbol in the version table
667 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
668 reportError("Invalid version entry");
669 const VersionMapEntry &entry = VersionMap[version_index];
671 // Get the version name string
673 if (entry.isVerdef()) {
674 // The first Verdaux entry holds the name.
675 name_offset = entry.getVerdef()->getAux()->vda_name;
676 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
678 name_offset = entry.getVernaux()->vna_name;
681 if (name_offset >= StrTab.size())
682 reportError("Invalid string offset");
683 return StringRef(StrTab.data() + name_offset);
686 template <typename ELFT>
687 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol,
689 bool IsDynamic) const {
690 StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable));
694 std::string FullSymbolName(SymbolName);
697 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault);
698 FullSymbolName += (IsDefault ? "@@" : "@");
699 FullSymbolName += Version;
700 return FullSymbolName;
703 template <typename ELFT>
705 getSectionNameIndex(const ELFFile<ELFT> &Obj, const typename ELFT::Sym *Symbol,
706 const typename ELFT::Sym *FirstSym,
707 ArrayRef<typename ELFT::Word> ShndxTable,
708 StringRef &SectionName, unsigned &SectionIndex) {
709 SectionIndex = Symbol->st_shndx;
710 if (Symbol->isUndefined())
711 SectionName = "Undefined";
712 else if (Symbol->isProcessorSpecific())
713 SectionName = "Processor Specific";
714 else if (Symbol->isOSSpecific())
715 SectionName = "Operating System Specific";
716 else if (Symbol->isAbsolute())
717 SectionName = "Absolute";
718 else if (Symbol->isCommon())
719 SectionName = "Common";
720 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX)
721 SectionName = "Reserved";
723 if (SectionIndex == SHN_XINDEX)
724 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>(
725 Symbol, FirstSym, ShndxTable));
726 const typename ELFT::Shdr *Sec =
727 unwrapOrError(Obj.getSection(SectionIndex));
728 SectionName = unwrapOrError(Obj.getSectionName(Sec));
732 template <class ELFO>
733 static const typename ELFO::Elf_Shdr *
734 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) {
735 for (const auto &Shdr : unwrapOrError(Obj->sections()))
736 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0)
741 template <class ELFO>
742 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj,
744 for (const auto &Shdr : unwrapOrError(Obj.sections())) {
745 if (Name == unwrapOrError(Obj.getSectionName(&Shdr)))
751 static const EnumEntry<unsigned> ElfClass[] = {
752 {"None", "none", ELF::ELFCLASSNONE},
753 {"32-bit", "ELF32", ELF::ELFCLASS32},
754 {"64-bit", "ELF64", ELF::ELFCLASS64},
757 static const EnumEntry<unsigned> ElfDataEncoding[] = {
758 {"None", "none", ELF::ELFDATANONE},
759 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB},
760 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB},
763 static const EnumEntry<unsigned> ElfObjectFileType[] = {
764 {"None", "NONE (none)", ELF::ET_NONE},
765 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL},
766 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC},
767 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN},
768 {"Core", "CORE (Core file)", ELF::ET_CORE},
771 static const EnumEntry<unsigned> ElfOSABI[] = {
772 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE},
773 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX},
774 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD},
775 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX},
776 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD},
777 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS},
778 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX},
779 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX},
780 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD},
781 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64},
782 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO},
783 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD},
784 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS},
785 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK},
786 {"AROS", "AROS", ELF::ELFOSABI_AROS},
787 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS},
788 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI},
789 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI},
790 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX},
791 {"ARM", "ARM", ELF::ELFOSABI_ARM},
792 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE}
795 static const EnumEntry<unsigned> ElfMachineType[] = {
796 ENUM_ENT(EM_NONE, "None"),
797 ENUM_ENT(EM_M32, "WE32100"),
798 ENUM_ENT(EM_SPARC, "Sparc"),
799 ENUM_ENT(EM_386, "Intel 80386"),
800 ENUM_ENT(EM_68K, "MC68000"),
801 ENUM_ENT(EM_88K, "MC88000"),
802 ENUM_ENT(EM_IAMCU, "EM_IAMCU"),
803 ENUM_ENT(EM_860, "Intel 80860"),
804 ENUM_ENT(EM_MIPS, "MIPS R3000"),
805 ENUM_ENT(EM_S370, "IBM System/370"),
806 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"),
807 ENUM_ENT(EM_PARISC, "HPPA"),
808 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"),
809 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"),
810 ENUM_ENT(EM_960, "Intel 80960"),
811 ENUM_ENT(EM_PPC, "PowerPC"),
812 ENUM_ENT(EM_PPC64, "PowerPC64"),
813 ENUM_ENT(EM_S390, "IBM S/390"),
814 ENUM_ENT(EM_SPU, "SPU"),
815 ENUM_ENT(EM_V800, "NEC V800 series"),
816 ENUM_ENT(EM_FR20, "Fujistsu FR20"),
817 ENUM_ENT(EM_RH32, "TRW RH-32"),
818 ENUM_ENT(EM_RCE, "Motorola RCE"),
819 ENUM_ENT(EM_ARM, "ARM"),
820 ENUM_ENT(EM_ALPHA, "EM_ALPHA"),
821 ENUM_ENT(EM_SH, "Hitachi SH"),
822 ENUM_ENT(EM_SPARCV9, "Sparc v9"),
823 ENUM_ENT(EM_TRICORE, "Siemens Tricore"),
824 ENUM_ENT(EM_ARC, "ARC"),
825 ENUM_ENT(EM_H8_300, "Hitachi H8/300"),
826 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"),
827 ENUM_ENT(EM_H8S, "Hitachi H8S"),
828 ENUM_ENT(EM_H8_500, "Hitachi H8/500"),
829 ENUM_ENT(EM_IA_64, "Intel IA-64"),
830 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"),
831 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"),
832 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"),
833 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"),
834 ENUM_ENT(EM_PCP, "Siemens PCP"),
835 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"),
836 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"),
837 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"),
838 ENUM_ENT(EM_ME16, "Toyota ME16 processor"),
839 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"),
840 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"),
841 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"),
842 ENUM_ENT(EM_PDSP, "Sony DSP processor"),
843 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"),
844 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"),
845 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"),
846 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"),
847 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"),
848 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"),
849 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"),
850 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"),
851 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"),
852 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"),
853 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"),
854 ENUM_ENT(EM_VAX, "Digital VAX"),
855 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"),
856 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"),
857 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"),
858 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"),
859 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"),
860 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"),
861 ENUM_ENT(EM_PRISM, "Vitesse Prism"),
862 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"),
863 ENUM_ENT(EM_FR30, "Fujitsu FR30"),
864 ENUM_ENT(EM_D10V, "Mitsubishi D10V"),
865 ENUM_ENT(EM_D30V, "Mitsubishi D30V"),
866 ENUM_ENT(EM_V850, "NEC v850"),
867 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"),
868 ENUM_ENT(EM_MN10300, "Matsushita MN10300"),
869 ENUM_ENT(EM_MN10200, "Matsushita MN10200"),
870 ENUM_ENT(EM_PJ, "picoJava"),
871 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"),
872 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"),
873 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"),
874 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"),
875 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"),
876 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"),
877 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"),
878 ENUM_ENT(EM_SNP1K, "EM_SNP1K"),
879 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"),
880 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"),
881 ENUM_ENT(EM_MAX, "MAX Processor"),
882 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"),
883 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"),
884 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"),
885 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"),
886 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"),
887 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"),
888 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"),
889 ENUM_ENT(EM_UNICORE, "Unicore"),
890 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"),
891 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"),
892 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"),
893 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"),
894 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"),
895 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"),
896 ENUM_ENT(EM_M16C, "Renesas M16C"),
897 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"),
898 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"),
899 ENUM_ENT(EM_M32C, "Renesas M32C"),
900 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"),
901 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"),
902 ENUM_ENT(EM_SHARC, "EM_SHARC"),
903 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"),
904 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"),
905 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"),
906 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"),
907 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"),
908 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"),
909 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"),
910 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"),
911 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"),
912 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"),
913 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"),
914 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"),
915 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"),
916 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"),
917 ENUM_ENT(EM_8051, "Intel 8051 and variants"),
918 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"),
919 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"),
920 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"),
921 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"),
922 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"),
923 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"),
924 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"),
925 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"),
926 ENUM_ENT(EM_RX, "Renesas RX"),
927 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"),
928 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"),
929 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"),
930 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"),
931 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"),
932 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"),
933 ENUM_ENT(EM_L10M, "EM_L10M"),
934 ENUM_ENT(EM_K10M, "EM_K10M"),
935 ENUM_ENT(EM_AARCH64, "AArch64"),
936 ENUM_ENT(EM_AVR32, "Atmel AVR 8-bit microcontroller"),
937 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"),
938 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"),
939 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"),
940 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"),
941 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"),
942 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"),
943 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"),
944 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"),
945 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"),
946 ENUM_ENT(EM_OPEN8, "EM_OPEN8"),
947 ENUM_ENT(EM_RL78, "Renesas RL78"),
948 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"),
949 ENUM_ENT(EM_78KOR, "EM_78KOR"),
950 ENUM_ENT(EM_56800EX, "EM_56800EX"),
951 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"),
952 ENUM_ENT(EM_RISCV, "RISC-V"),
953 ENUM_ENT(EM_WEBASSEMBLY, "EM_WEBASSEMBLY"),
954 ENUM_ENT(EM_LANAI, "EM_LANAI"),
955 ENUM_ENT(EM_BPF, "EM_BPF"),
958 static const EnumEntry<unsigned> ElfSymbolBindings[] = {
959 {"Local", "LOCAL", ELF::STB_LOCAL},
960 {"Global", "GLOBAL", ELF::STB_GLOBAL},
961 {"Weak", "WEAK", ELF::STB_WEAK},
962 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}};
964 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = {
965 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT},
966 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL},
967 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN},
968 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}};
970 static const EnumEntry<unsigned> ElfSymbolTypes[] = {
971 {"None", "NOTYPE", ELF::STT_NOTYPE},
972 {"Object", "OBJECT", ELF::STT_OBJECT},
973 {"Function", "FUNC", ELF::STT_FUNC},
974 {"Section", "SECTION", ELF::STT_SECTION},
975 {"File", "FILE", ELF::STT_FILE},
976 {"Common", "COMMON", ELF::STT_COMMON},
977 {"TLS", "TLS", ELF::STT_TLS},
978 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}};
980 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = {
981 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL },
982 { "AMDGPU_HSA_INDIRECT_FUNCTION", ELF::STT_AMDGPU_HSA_INDIRECT_FUNCTION },
983 { "AMDGPU_HSA_METADATA", ELF::STT_AMDGPU_HSA_METADATA }
986 static const char *getElfSectionType(unsigned Arch, unsigned Type) {
990 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_EXIDX);
991 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_PREEMPTMAP);
992 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_ATTRIBUTES);
993 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_DEBUGOVERLAY);
994 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_OVERLAYSECTION);
996 case ELF::EM_HEXAGON:
997 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED); }
999 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND); }
1001 case ELF::EM_MIPS_RS3_LE:
1003 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO);
1004 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS);
1005 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_ABIFLAGS);
1006 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_DWARF);
1011 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NULL );
1012 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PROGBITS );
1013 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB );
1014 LLVM_READOBJ_ENUM_CASE(ELF, SHT_STRTAB );
1015 LLVM_READOBJ_ENUM_CASE(ELF, SHT_RELA );
1016 LLVM_READOBJ_ENUM_CASE(ELF, SHT_HASH );
1017 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNAMIC );
1018 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOTE );
1019 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOBITS );
1020 LLVM_READOBJ_ENUM_CASE(ELF, SHT_REL );
1021 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SHLIB );
1022 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNSYM );
1023 LLVM_READOBJ_ENUM_CASE(ELF, SHT_INIT_ARRAY );
1024 LLVM_READOBJ_ENUM_CASE(ELF, SHT_FINI_ARRAY );
1025 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PREINIT_ARRAY );
1026 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GROUP );
1027 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB_SHNDX );
1028 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES );
1029 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_HASH );
1030 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verdef );
1031 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verneed );
1032 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_versym );
1037 static const char *getGroupType(uint32_t Flag) {
1038 if (Flag & ELF::GRP_COMDAT)
1044 static const EnumEntry<unsigned> ElfSectionFlags[] = {
1045 ENUM_ENT(SHF_WRITE, "W"),
1046 ENUM_ENT(SHF_ALLOC, "A"),
1047 ENUM_ENT(SHF_EXCLUDE, "E"),
1048 ENUM_ENT(SHF_EXECINSTR, "X"),
1049 ENUM_ENT(SHF_MERGE, "M"),
1050 ENUM_ENT(SHF_STRINGS, "S"),
1051 ENUM_ENT(SHF_INFO_LINK, "I"),
1052 ENUM_ENT(SHF_LINK_ORDER, "L"),
1053 ENUM_ENT(SHF_OS_NONCONFORMING, "o"),
1054 ENUM_ENT(SHF_GROUP, "G"),
1055 ENUM_ENT(SHF_TLS, "T"),
1056 ENUM_ENT(SHF_MASKOS, "o"),
1057 ENUM_ENT(SHF_MASKPROC, "p"),
1058 ENUM_ENT_1(SHF_COMPRESSED),
1061 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = {
1062 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
1063 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION)
1066 static const EnumEntry<unsigned> ElfAMDGPUSectionFlags[] = {
1067 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_GLOBAL),
1068 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_READONLY),
1069 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_CODE),
1070 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_AGENT)
1073 static const EnumEntry<unsigned> ElfARMSectionFlags[] = {
1074 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE)
1077 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = {
1078 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL)
1081 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = {
1082 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES),
1083 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ),
1084 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ),
1085 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP),
1086 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ),
1087 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ),
1088 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ),
1089 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING )
1092 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = {
1093 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE)
1096 static std::string getGNUFlags(uint64_t Flags) {
1098 for (auto Entry : ElfSectionFlags) {
1099 uint64_t Flag = Entry.Value & Flags;
1100 Flags &= ~Entry.Value;
1102 case ELF::SHF_WRITE:
1103 case ELF::SHF_ALLOC:
1104 case ELF::SHF_EXECINSTR:
1105 case ELF::SHF_MERGE:
1106 case ELF::SHF_STRINGS:
1107 case ELF::SHF_INFO_LINK:
1108 case ELF::SHF_LINK_ORDER:
1109 case ELF::SHF_OS_NONCONFORMING:
1110 case ELF::SHF_GROUP:
1112 case ELF::SHF_EXCLUDE:
1113 Str += Entry.AltName;
1116 if (Flag & ELF::SHF_MASKOS)
1118 else if (Flag & ELF::SHF_MASKPROC)
1127 static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
1128 // Check potentially overlapped processor-specific
1129 // program header type.
1131 case ELF::EM_AMDGPU:
1133 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM);
1134 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT);
1135 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT);
1136 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT);
1140 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
1143 case ELF::EM_MIPS_RS3_LE:
1145 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
1146 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
1147 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
1148 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS);
1153 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
1154 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
1155 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
1156 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
1157 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
1158 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
1159 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
1160 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
1162 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
1163 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
1165 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
1166 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
1168 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE);
1169 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED);
1170 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA);
1176 static std::string getElfPtType(unsigned Arch, unsigned Type) {
1178 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL)
1179 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD)
1180 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC)
1181 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP)
1182 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE)
1183 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB)
1184 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR)
1185 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS)
1186 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME)
1187 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND)
1188 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK)
1189 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO)
1191 // All machine specific PT_* types
1193 case ELF::EM_AMDGPU:
1195 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM);
1196 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT);
1197 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT);
1198 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT);
1202 if (Type == ELF::PT_ARM_EXIDX)
1206 case ELF::EM_MIPS_RS3_LE:
1208 case PT_MIPS_REGINFO:
1210 case PT_MIPS_RTPROC:
1212 case PT_MIPS_OPTIONS:
1214 case PT_MIPS_ABIFLAGS:
1220 return std::string("<unknown>: ") + to_string(format_hex(Type, 1));
1223 static const EnumEntry<unsigned> ElfSegmentFlags[] = {
1224 LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
1225 LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
1226 LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
1229 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
1230 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER),
1231 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC),
1232 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC),
1233 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2),
1234 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE),
1235 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64),
1236 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008),
1237 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32),
1238 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64),
1239 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32),
1240 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64),
1241 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900),
1242 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010),
1243 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100),
1244 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650),
1245 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120),
1246 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111),
1247 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1),
1248 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON),
1249 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR),
1250 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2),
1251 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3),
1252 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400),
1253 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900),
1254 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500),
1255 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000),
1256 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E),
1257 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F),
1258 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A),
1259 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS),
1260 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16),
1261 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX),
1262 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1),
1263 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2),
1264 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3),
1265 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4),
1266 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5),
1267 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32),
1268 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64),
1269 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2),
1270 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2),
1271 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6),
1272 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6)
1275 static const EnumEntry<unsigned> ElfSymOtherFlags[] = {
1276 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL),
1277 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN),
1278 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED)
1281 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = {
1282 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1283 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1284 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC),
1285 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS)
1288 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = {
1289 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1290 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1291 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16)
1294 static const char *getElfMipsOptionsOdkType(unsigned Odk) {
1296 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL);
1297 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO);
1298 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS);
1299 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD);
1300 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH);
1301 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL);
1302 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS);
1303 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND);
1304 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR);
1305 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP);
1306 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT);
1307 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE);
1313 template <typename ELFT>
1314 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer)
1315 : ObjDumper(Writer), Obj(Obj) {
1317 SmallVector<const Elf_Phdr *, 4> LoadSegments;
1318 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
1319 if (Phdr.p_type == ELF::PT_DYNAMIC) {
1320 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn));
1323 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0)
1325 LoadSegments.push_back(&Phdr);
1328 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
1329 switch (Sec.sh_type) {
1330 case ELF::SHT_SYMTAB:
1331 if (DotSymtabSec != nullptr)
1332 reportError("Multilpe SHT_SYMTAB");
1333 DotSymtabSec = &Sec;
1335 case ELF::SHT_DYNSYM:
1336 if (DynSymRegion.Size)
1337 reportError("Multilpe SHT_DYNSYM");
1338 DynSymRegion = createDRIFrom(&Sec);
1339 // This is only used (if Elf_Shdr present)for naming section in GNU style
1340 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec));
1342 case ELF::SHT_SYMTAB_SHNDX:
1343 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec));
1345 case ELF::SHT_GNU_versym:
1346 if (dot_gnu_version_sec != nullptr)
1347 reportError("Multiple SHT_GNU_versym");
1348 dot_gnu_version_sec = &Sec;
1350 case ELF::SHT_GNU_verdef:
1351 if (dot_gnu_version_d_sec != nullptr)
1352 reportError("Multiple SHT_GNU_verdef");
1353 dot_gnu_version_d_sec = &Sec;
1355 case ELF::SHT_GNU_verneed:
1356 if (dot_gnu_version_r_sec != nullptr)
1357 reportError("Multilpe SHT_GNU_verneed");
1358 dot_gnu_version_r_sec = &Sec;
1363 parseDynamicTable(LoadSegments);
1365 if (opts::Output == opts::GNU)
1366 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this));
1368 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this));
1371 template <typename ELFT>
1372 void ELFDumper<ELFT>::parseDynamicTable(
1373 ArrayRef<const Elf_Phdr *> LoadSegments) {
1374 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * {
1375 const Elf_Phdr *const *I = std::upper_bound(
1376 LoadSegments.begin(), LoadSegments.end(), VAddr, compareAddr<ELFT>);
1377 if (I == LoadSegments.begin())
1378 report_fatal_error("Virtual address is not in any segment");
1380 const Elf_Phdr &Phdr = **I;
1381 uint64_t Delta = VAddr - Phdr.p_vaddr;
1382 if (Delta >= Phdr.p_filesz)
1383 report_fatal_error("Virtual address is not in any segment");
1384 return Obj->base() + Phdr.p_offset + Delta;
1387 uint64_t SONameOffset = 0;
1388 const char *StringTableBegin = nullptr;
1389 uint64_t StringTableSize = 0;
1390 for (const Elf_Dyn &Dyn : dynamic_table()) {
1391 switch (Dyn.d_tag) {
1394 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr()));
1396 case ELF::DT_GNU_HASH:
1398 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr()));
1400 case ELF::DT_STRTAB:
1401 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr());
1404 StringTableSize = Dyn.getVal();
1406 case ELF::DT_SYMTAB:
1407 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr());
1408 DynSymRegion.EntSize = sizeof(Elf_Sym);
1411 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr());
1413 case ELF::DT_RELASZ:
1414 DynRelaRegion.Size = Dyn.getVal();
1416 case ELF::DT_RELAENT:
1417 DynRelaRegion.EntSize = Dyn.getVal();
1419 case ELF::DT_SONAME:
1420 SONameOffset = Dyn.getVal();
1423 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1426 DynRelRegion.Size = Dyn.getVal();
1428 case ELF::DT_RELENT:
1429 DynRelRegion.EntSize = Dyn.getVal();
1431 case ELF::DT_PLTREL:
1432 if (Dyn.getVal() == DT_REL)
1433 DynPLTRelRegion.EntSize = sizeof(Elf_Rel);
1434 else if (Dyn.getVal() == DT_RELA)
1435 DynPLTRelRegion.EntSize = sizeof(Elf_Rela);
1437 reportError(Twine("unknown DT_PLTREL value of ") +
1438 Twine((uint64_t)Dyn.getVal()));
1440 case ELF::DT_JMPREL:
1441 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1443 case ELF::DT_PLTRELSZ:
1444 DynPLTRelRegion.Size = Dyn.getVal();
1448 if (StringTableBegin)
1449 DynamicStringTable = StringRef(StringTableBegin, StringTableSize);
1451 SOName = getDynamicString(SONameOffset);
1454 template <typename ELFT>
1455 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const {
1456 return DynRelRegion.getAsArrayRef<Elf_Rel>();
1459 template <typename ELFT>
1460 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const {
1461 return DynRelaRegion.getAsArrayRef<Elf_Rela>();
1464 template<class ELFT>
1465 void ELFDumper<ELFT>::printFileHeaders() {
1466 ELFDumperStyle->printFileHeaders(Obj);
1469 template<class ELFT>
1470 void ELFDumper<ELFT>::printSections() {
1471 ELFDumperStyle->printSections(Obj);
1474 template<class ELFT>
1475 void ELFDumper<ELFT>::printRelocations() {
1476 ELFDumperStyle->printRelocations(Obj);
1479 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() {
1480 ELFDumperStyle->printProgramHeaders(Obj);
1483 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() {
1484 ELFDumperStyle->printDynamicRelocations(Obj);
1487 template<class ELFT>
1488 void ELFDumper<ELFT>::printSymbols() {
1489 ELFDumperStyle->printSymbols(Obj);
1492 template<class ELFT>
1493 void ELFDumper<ELFT>::printDynamicSymbols() {
1494 ELFDumperStyle->printDynamicSymbols(Obj);
1497 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() {
1498 ELFDumperStyle->printHashHistogram(Obj);
1501 template <class ELFT> void ELFDumper<ELFT>::printNotes() {
1502 ELFDumperStyle->printNotes(Obj);
1505 #define LLVM_READOBJ_TYPE_CASE(name) \
1506 case DT_##name: return #name
1508 static const char *getTypeString(unsigned Arch, uint64_t Type) {
1512 LLVM_READOBJ_TYPE_CASE(HEXAGON_SYMSZ);
1513 LLVM_READOBJ_TYPE_CASE(HEXAGON_VER);
1514 LLVM_READOBJ_TYPE_CASE(HEXAGON_PLT);
1518 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL);
1519 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION);
1520 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS);
1521 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS);
1522 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO);
1523 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO);
1524 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO);
1525 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM);
1526 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP);
1527 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT);
1528 LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS);
1532 LLVM_READOBJ_TYPE_CASE(BIND_NOW);
1533 LLVM_READOBJ_TYPE_CASE(DEBUG);
1534 LLVM_READOBJ_TYPE_CASE(FINI);
1535 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
1536 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
1537 LLVM_READOBJ_TYPE_CASE(FLAGS);
1538 LLVM_READOBJ_TYPE_CASE(FLAGS_1);
1539 LLVM_READOBJ_TYPE_CASE(HASH);
1540 LLVM_READOBJ_TYPE_CASE(INIT);
1541 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
1542 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
1543 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
1544 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
1545 LLVM_READOBJ_TYPE_CASE(JMPREL);
1546 LLVM_READOBJ_TYPE_CASE(NEEDED);
1547 LLVM_READOBJ_TYPE_CASE(NULL);
1548 LLVM_READOBJ_TYPE_CASE(PLTGOT);
1549 LLVM_READOBJ_TYPE_CASE(PLTREL);
1550 LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
1551 LLVM_READOBJ_TYPE_CASE(REL);
1552 LLVM_READOBJ_TYPE_CASE(RELA);
1553 LLVM_READOBJ_TYPE_CASE(RELENT);
1554 LLVM_READOBJ_TYPE_CASE(RELSZ);
1555 LLVM_READOBJ_TYPE_CASE(RELAENT);
1556 LLVM_READOBJ_TYPE_CASE(RELASZ);
1557 LLVM_READOBJ_TYPE_CASE(RPATH);
1558 LLVM_READOBJ_TYPE_CASE(RUNPATH);
1559 LLVM_READOBJ_TYPE_CASE(SONAME);
1560 LLVM_READOBJ_TYPE_CASE(STRSZ);
1561 LLVM_READOBJ_TYPE_CASE(STRTAB);
1562 LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
1563 LLVM_READOBJ_TYPE_CASE(SYMENT);
1564 LLVM_READOBJ_TYPE_CASE(SYMTAB);
1565 LLVM_READOBJ_TYPE_CASE(TEXTREL);
1566 LLVM_READOBJ_TYPE_CASE(VERDEF);
1567 LLVM_READOBJ_TYPE_CASE(VERDEFNUM);
1568 LLVM_READOBJ_TYPE_CASE(VERNEED);
1569 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM);
1570 LLVM_READOBJ_TYPE_CASE(VERSYM);
1571 LLVM_READOBJ_TYPE_CASE(RELACOUNT);
1572 LLVM_READOBJ_TYPE_CASE(RELCOUNT);
1573 LLVM_READOBJ_TYPE_CASE(GNU_HASH);
1574 LLVM_READOBJ_TYPE_CASE(TLSDESC_PLT);
1575 LLVM_READOBJ_TYPE_CASE(TLSDESC_GOT);
1576 LLVM_READOBJ_TYPE_CASE(AUXILIARY);
1577 default: return "unknown";
1581 #undef LLVM_READOBJ_TYPE_CASE
1583 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
1584 { #enum, prefix##_##enum }
1586 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
1587 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
1588 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
1589 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
1590 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
1591 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
1594 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
1595 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW),
1596 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL),
1597 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP),
1598 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE),
1599 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR),
1600 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST),
1601 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN),
1602 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN),
1603 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT),
1604 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS),
1605 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE),
1606 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB),
1607 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP),
1608 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT),
1609 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE),
1610 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE),
1611 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT),
1612 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF),
1613 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS),
1614 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR),
1615 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED),
1616 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
1617 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
1618 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
1619 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
1622 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
1623 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
1624 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
1625 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
1626 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
1627 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
1628 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
1629 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
1630 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
1631 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
1632 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
1633 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
1634 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
1635 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
1636 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
1637 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
1638 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
1641 #undef LLVM_READOBJ_DT_FLAG_ENT
1643 template <typename T, typename TFlag>
1644 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
1645 typedef EnumEntry<TFlag> FlagEntry;
1646 typedef SmallVector<FlagEntry, 10> FlagVector;
1647 FlagVector SetFlags;
1649 for (const auto &Flag : Flags) {
1650 if (Flag.Value == 0)
1653 if ((Value & Flag.Value) == Flag.Value)
1654 SetFlags.push_back(Flag);
1657 for (const auto &Flag : SetFlags) {
1658 OS << Flag.Name << " ";
1662 template <class ELFT>
1663 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const {
1664 if (Value >= DynamicStringTable.size())
1665 reportError("Invalid dynamic string table reference");
1666 return StringRef(DynamicStringTable.data() + Value);
1669 template <class ELFT>
1670 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) {
1671 raw_ostream &OS = W.getOStream();
1672 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64;
1675 if (Value == DT_REL) {
1678 } else if (Value == DT_RELA) {
1694 case DT_PREINIT_ARRAY:
1701 case DT_MIPS_BASE_ADDRESS:
1702 case DT_MIPS_GOTSYM:
1703 case DT_MIPS_RLD_MAP:
1704 case DT_MIPS_RLD_MAP_REL:
1705 case DT_MIPS_PLTGOT:
1706 case DT_MIPS_OPTIONS:
1707 OS << format(ConvChar, Value);
1713 case DT_MIPS_RLD_VERSION:
1714 case DT_MIPS_LOCAL_GOTNO:
1715 case DT_MIPS_SYMTABNO:
1716 case DT_MIPS_UNREFEXTNO:
1726 case DT_INIT_ARRAYSZ:
1727 case DT_FINI_ARRAYSZ:
1728 case DT_PREINIT_ARRAYSZ:
1729 OS << Value << " (bytes)";
1732 OS << "SharedLibrary (" << getDynamicString(Value) << ")";
1735 OS << "LibrarySoname (" << getDynamicString(Value) << ")";
1738 OS << "Auxiliary library: [" << getDynamicString(Value) << "]";
1742 OS << getDynamicString(Value);
1745 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
1748 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
1751 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS);
1754 OS << format(ConvChar, Value);
1759 template<class ELFT>
1760 void ELFDumper<ELFT>::printUnwindInfo() {
1761 W.startLine() << "UnwindInfo not implemented.\n";
1765 template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() {
1766 const unsigned Machine = Obj->getHeader()->e_machine;
1767 if (Machine == EM_ARM) {
1768 ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx(
1769 W, Obj, DotSymtabSec);
1770 return Ctx.PrintUnwindInformation();
1772 W.startLine() << "UnwindInfo not implemented.\n";
1776 template<class ELFT>
1777 void ELFDumper<ELFT>::printDynamicTable() {
1778 auto I = dynamic_table().begin();
1779 auto E = dynamic_table().end();
1785 while (I != E && E->getTag() == ELF::DT_NULL)
1787 if (E->getTag() != ELF::DT_NULL)
1791 ptrdiff_t Total = std::distance(I, E);
1795 raw_ostream &OS = W.getOStream();
1796 W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
1798 bool Is64 = ELFT::Is64Bits;
1801 << " Tag" << (Is64 ? " " : " ") << "Type"
1802 << " " << "Name/Value\n";
1804 const Elf_Dyn &Entry = *I;
1805 uintX_t Tag = Entry.getTag();
1807 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " "
1808 << format("%-21s", getTypeString(Obj->getHeader()->e_machine, Tag));
1809 printValue(Tag, Entry.getVal());
1813 W.startLine() << "]\n";
1816 template<class ELFT>
1817 void ELFDumper<ELFT>::printNeededLibraries() {
1818 ListScope D(W, "NeededLibraries");
1820 typedef std::vector<StringRef> LibsTy;
1823 for (const auto &Entry : dynamic_table())
1824 if (Entry.d_tag == ELF::DT_NEEDED)
1825 Libs.push_back(getDynamicString(Entry.d_un.d_val));
1827 std::stable_sort(Libs.begin(), Libs.end());
1829 for (const auto &L : Libs) {
1830 outs() << " " << L << "\n";
1835 template <typename ELFT>
1836 void ELFDumper<ELFT>::printHashTable() {
1837 DictScope D(W, "HashTable");
1840 W.printNumber("Num Buckets", HashTable->nbucket);
1841 W.printNumber("Num Chains", HashTable->nchain);
1842 W.printList("Buckets", HashTable->buckets());
1843 W.printList("Chains", HashTable->chains());
1846 template <typename ELFT>
1847 void ELFDumper<ELFT>::printGnuHashTable() {
1848 DictScope D(W, "GnuHashTable");
1851 W.printNumber("Num Buckets", GnuHashTable->nbuckets);
1852 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx);
1853 W.printNumber("Num Mask Words", GnuHashTable->maskwords);
1854 W.printNumber("Shift Count", GnuHashTable->shift2);
1855 W.printHexList("Bloom Filter", GnuHashTable->filter());
1856 W.printList("Buckets", GnuHashTable->buckets());
1857 Elf_Sym_Range Syms = dynamic_symbols();
1858 unsigned NumSyms = std::distance(Syms.begin(), Syms.end());
1860 reportError("No dynamic symbol section");
1861 W.printHexList("Values", GnuHashTable->values(NumSyms));
1864 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() {
1865 outs() << "LoadName: " << SOName << '\n';
1868 template <class ELFT>
1869 void ELFDumper<ELFT>::printAttributes() {
1870 W.startLine() << "Attributes not implemented.\n";
1874 template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() {
1875 if (Obj->getHeader()->e_machine != EM_ARM) {
1876 W.startLine() << "Attributes not implemented.\n";
1880 DictScope BA(W, "BuildAttributes");
1881 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
1882 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES)
1885 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec));
1886 if (Contents[0] != ARMBuildAttrs::Format_Version) {
1887 errs() << "unrecognised FormatVersion: 0x" << utohexstr(Contents[0])
1892 W.printHex("FormatVersion", Contents[0]);
1893 if (Contents.size() == 1)
1896 ARMAttributeParser(&W).Parse(Contents, true);
1902 template <class ELFT> class MipsGOTParser {
1904 TYPEDEF_ELF_TYPES(ELFT)
1905 typedef typename ELFO::Elf_Addr GOTEntry;
1906 MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1907 Elf_Dyn_Range DynTable, ScopedPrinter &W);
1913 ELFDumper<ELFT> *Dumper;
1916 llvm::Optional<uint64_t> DtPltGot;
1917 llvm::Optional<uint64_t> DtLocalGotNum;
1918 llvm::Optional<uint64_t> DtGotSym;
1919 llvm::Optional<uint64_t> DtMipsPltGot;
1920 llvm::Optional<uint64_t> DtJmpRel;
1922 std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const;
1923 const GOTEntry *makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum);
1925 void printGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1926 const GOTEntry *It);
1927 void printGlobalGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1928 const GOTEntry *It, const Elf_Sym *Sym,
1929 StringRef StrTable, bool IsDynamic);
1930 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1931 const GOTEntry *It, StringRef Purpose);
1932 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1933 const GOTEntry *It, StringRef StrTable,
1934 const Elf_Sym *Sym);
1938 template <class ELFT>
1939 MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1940 Elf_Dyn_Range DynTable, ScopedPrinter &W)
1941 : Dumper(Dumper), Obj(Obj), W(W) {
1942 for (const auto &Entry : DynTable) {
1943 switch (Entry.getTag()) {
1944 case ELF::DT_PLTGOT:
1945 DtPltGot = Entry.getVal();
1947 case ELF::DT_MIPS_LOCAL_GOTNO:
1948 DtLocalGotNum = Entry.getVal();
1950 case ELF::DT_MIPS_GOTSYM:
1951 DtGotSym = Entry.getVal();
1953 case ELF::DT_MIPS_PLTGOT:
1954 DtMipsPltGot = Entry.getVal();
1956 case ELF::DT_JMPREL:
1957 DtJmpRel = Entry.getVal();
1963 template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() {
1964 // See "Global Offset Table" in Chapter 5 in the following document
1965 // for detailed GOT description.
1966 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
1968 W.startLine() << "Cannot find PLTGOT dynamic table tag.\n";
1971 if (!DtLocalGotNum) {
1972 W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n";
1976 W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n";
1980 StringRef StrTable = Dumper->getDynamicStringTable();
1981 const Elf_Sym *DynSymBegin = Dumper->dynamic_symbols().begin();
1982 const Elf_Sym *DynSymEnd = Dumper->dynamic_symbols().end();
1983 std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd));
1985 if (*DtGotSym > DynSymTotal)
1986 report_fatal_error("MIPS_GOTSYM exceeds a number of dynamic symbols");
1988 std::size_t GlobalGotNum = DynSymTotal - *DtGotSym;
1990 if (*DtLocalGotNum + GlobalGotNum == 0) {
1991 W.startLine() << "GOT is empty.\n";
1995 const Elf_Shdr *GOTShdr = findNotEmptySectionByAddress(Obj, *DtPltGot);
1997 report_fatal_error("There is no not empty GOT section at 0x" +
1998 Twine::utohexstr(*DtPltGot));
2000 ArrayRef<uint8_t> GOT = unwrapOrError(Obj->getSectionContents(GOTShdr));
2002 if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(GOT))
2003 report_fatal_error("Number of GOT entries exceeds the size of GOT section");
2005 const GOTEntry *GotBegin = makeGOTIter(GOT, 0);
2006 const GOTEntry *GotLocalEnd = makeGOTIter(GOT, *DtLocalGotNum);
2007 const GOTEntry *It = GotBegin;
2009 DictScope GS(W, "Primary GOT");
2011 W.printHex("Canonical gp value", GOTShdr->sh_addr + 0x7ff0);
2013 ListScope RS(W, "Reserved entries");
2016 DictScope D(W, "Entry");
2017 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
2018 W.printString("Purpose", StringRef("Lazy resolver"));
2021 if (It != GotLocalEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) {
2022 DictScope D(W, "Entry");
2023 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
2024 W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
2028 ListScope LS(W, "Local entries");
2029 for (; It != GotLocalEnd; ++It) {
2030 DictScope D(W, "Entry");
2031 printGotEntry(GOTShdr->sh_addr, GotBegin, It);
2035 ListScope GS(W, "Global entries");
2037 const GOTEntry *GotGlobalEnd =
2038 makeGOTIter(GOT, *DtLocalGotNum + GlobalGotNum);
2039 const Elf_Sym *GotDynSym = DynSymBegin + *DtGotSym;
2040 for (; It != GotGlobalEnd; ++It) {
2041 DictScope D(W, "Entry");
2042 printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++, StrTable,
2047 std::size_t SpecGotNum = getGOTTotal(GOT) - *DtLocalGotNum - GlobalGotNum;
2048 W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum));
2051 template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() {
2052 if (!DtMipsPltGot) {
2053 W.startLine() << "Cannot find MIPS_PLTGOT dynamic table tag.\n";
2057 W.startLine() << "Cannot find JMPREL dynamic table tag.\n";
2061 const Elf_Shdr *PLTShdr = findNotEmptySectionByAddress(Obj, *DtMipsPltGot);
2063 report_fatal_error("There is no not empty PLTGOT section at 0x " +
2064 Twine::utohexstr(*DtMipsPltGot));
2065 ArrayRef<uint8_t> PLT = unwrapOrError(Obj->getSectionContents(PLTShdr));
2067 const Elf_Shdr *PLTRelShdr = findNotEmptySectionByAddress(Obj, *DtJmpRel);
2069 report_fatal_error("There is no not empty RELPLT section at 0x" +
2070 Twine::utohexstr(*DtJmpRel));
2071 const Elf_Shdr *SymTable =
2072 unwrapOrError(Obj->getSection(PLTRelShdr->sh_link));
2073 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTable));
2075 const GOTEntry *PLTBegin = makeGOTIter(PLT, 0);
2076 const GOTEntry *PLTEnd = makeGOTIter(PLT, getGOTTotal(PLT));
2077 const GOTEntry *It = PLTBegin;
2079 DictScope GS(W, "PLT GOT");
2081 ListScope RS(W, "Reserved entries");
2082 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "PLT lazy resolver");
2084 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "Module pointer");
2087 ListScope GS(W, "Entries");
2089 switch (PLTRelShdr->sh_type) {
2091 for (const Elf_Rel &Rel : unwrapOrError(Obj->rels(PLTRelShdr))) {
2092 const Elf_Sym *Sym =
2093 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable));
2094 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym);
2100 for (const Elf_Rela &Rel : unwrapOrError(Obj->relas(PLTRelShdr))) {
2101 const Elf_Sym *Sym =
2102 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable));
2103 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym);
2112 template <class ELFT>
2113 std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const {
2114 return GOT.size() / sizeof(GOTEntry);
2117 template <class ELFT>
2118 const typename MipsGOTParser<ELFT>::GOTEntry *
2119 MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) {
2120 const char *Data = reinterpret_cast<const char *>(GOT.data());
2121 return reinterpret_cast<const GOTEntry *>(Data + EntryNum * sizeof(GOTEntry));
2124 template <class ELFT>
2125 void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr,
2126 const GOTEntry *BeginIt,
2127 const GOTEntry *It) {
2128 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2129 W.printHex("Address", GotAddr + Offset);
2130 W.printNumber("Access", Offset - 0x7ff0);
2131 W.printHex("Initial", *It);
2134 template <class ELFT>
2135 void MipsGOTParser<ELFT>::printGlobalGotEntry(
2136 uint64_t GotAddr, const GOTEntry *BeginIt, const GOTEntry *It,
2137 const Elf_Sym *Sym, StringRef StrTable, bool IsDynamic) {
2138 printGotEntry(GotAddr, BeginIt, It);
2140 W.printHex("Value", Sym->st_value);
2141 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
2143 unsigned SectionIndex = 0;
2144 StringRef SectionName;
2145 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(),
2146 Dumper->getShndxTable(), SectionName, SectionIndex);
2147 W.printHex("Section", SectionName, SectionIndex);
2149 std::string FullSymbolName =
2150 Dumper->getFullSymbolName(Sym, StrTable, IsDynamic);
2151 W.printNumber("Name", FullSymbolName, Sym->st_name);
2154 template <class ELFT>
2155 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
2156 const GOTEntry *BeginIt,
2157 const GOTEntry *It, StringRef Purpose) {
2158 DictScope D(W, "Entry");
2159 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2160 W.printHex("Address", PLTAddr + Offset);
2161 W.printHex("Initial", *It);
2162 W.printString("Purpose", Purpose);
2165 template <class ELFT>
2166 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
2167 const GOTEntry *BeginIt,
2168 const GOTEntry *It, StringRef StrTable,
2169 const Elf_Sym *Sym) {
2170 DictScope D(W, "Entry");
2171 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2172 W.printHex("Address", PLTAddr + Offset);
2173 W.printHex("Initial", *It);
2174 W.printHex("Value", Sym->st_value);
2175 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
2177 unsigned SectionIndex = 0;
2178 StringRef SectionName;
2179 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(),
2180 Dumper->getShndxTable(), SectionName, SectionIndex);
2181 W.printHex("Section", SectionName, SectionIndex);
2183 std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true);
2184 W.printNumber("Name", FullSymbolName, Sym->st_name);
2187 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
2188 if (Obj->getHeader()->e_machine != EM_MIPS) {
2189 W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n";
2193 MipsGOTParser<ELFT> GOTParser(this, Obj, dynamic_table(), W);
2194 GOTParser.parseGOT();
2195 GOTParser.parsePLT();
2198 static const EnumEntry<unsigned> ElfMipsISAExtType[] = {
2199 {"None", Mips::AFL_EXT_NONE},
2200 {"Broadcom SB-1", Mips::AFL_EXT_SB1},
2201 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON},
2202 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2},
2203 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP},
2204 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3},
2205 {"LSI R4010", Mips::AFL_EXT_4010},
2206 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E},
2207 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F},
2208 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A},
2209 {"MIPS R4650", Mips::AFL_EXT_4650},
2210 {"MIPS R5900", Mips::AFL_EXT_5900},
2211 {"MIPS R10000", Mips::AFL_EXT_10000},
2212 {"NEC VR4100", Mips::AFL_EXT_4100},
2213 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111},
2214 {"NEC VR4120", Mips::AFL_EXT_4120},
2215 {"NEC VR5400", Mips::AFL_EXT_5400},
2216 {"NEC VR5500", Mips::AFL_EXT_5500},
2217 {"RMI Xlr", Mips::AFL_EXT_XLR},
2218 {"Toshiba R3900", Mips::AFL_EXT_3900}
2221 static const EnumEntry<unsigned> ElfMipsASEFlags[] = {
2222 {"DSP", Mips::AFL_ASE_DSP},
2223 {"DSPR2", Mips::AFL_ASE_DSPR2},
2224 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA},
2225 {"MCU", Mips::AFL_ASE_MCU},
2226 {"MDMX", Mips::AFL_ASE_MDMX},
2227 {"MIPS-3D", Mips::AFL_ASE_MIPS3D},
2228 {"MT", Mips::AFL_ASE_MT},
2229 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS},
2230 {"VZ", Mips::AFL_ASE_VIRT},
2231 {"MSA", Mips::AFL_ASE_MSA},
2232 {"MIPS16", Mips::AFL_ASE_MIPS16},
2233 {"microMIPS", Mips::AFL_ASE_MICROMIPS},
2234 {"XPA", Mips::AFL_ASE_XPA}
2237 static const EnumEntry<unsigned> ElfMipsFpABIType[] = {
2238 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY},
2239 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE},
2240 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE},
2241 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT},
2242 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)",
2243 Mips::Val_GNU_MIPS_ABI_FP_OLD_64},
2244 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX},
2245 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64},
2246 {"Hard float compat (32-bit CPU, 64-bit FPU)",
2247 Mips::Val_GNU_MIPS_ABI_FP_64A}
2250 static const EnumEntry<unsigned> ElfMipsFlags1[] {
2251 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG},
2254 static int getMipsRegisterSize(uint8_t Flag) {
2256 case Mips::AFL_REG_NONE:
2258 case Mips::AFL_REG_32:
2260 case Mips::AFL_REG_64:
2262 case Mips::AFL_REG_128:
2269 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() {
2270 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags");
2272 W.startLine() << "There is no .MIPS.abiflags section in the file.\n";
2275 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2276 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) {
2277 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n";
2281 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data());
2283 raw_ostream &OS = W.getOStream();
2284 DictScope GS(W, "MIPS ABI Flags");
2286 W.printNumber("Version", Flags->version);
2287 W.startLine() << "ISA: ";
2288 if (Flags->isa_rev <= 1)
2289 OS << format("MIPS%u", Flags->isa_level);
2291 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev);
2293 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType));
2294 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags));
2295 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType));
2296 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size));
2297 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size));
2298 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size));
2299 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1));
2300 W.printHex("Flags 2", Flags->flags2);
2303 template <class ELFT>
2304 static void printMipsReginfoData(ScopedPrinter &W,
2305 const Elf_Mips_RegInfo<ELFT> &Reginfo) {
2306 W.printHex("GP", Reginfo.ri_gp_value);
2307 W.printHex("General Mask", Reginfo.ri_gprmask);
2308 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]);
2309 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]);
2310 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]);
2311 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]);
2314 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() {
2315 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo");
2317 W.startLine() << "There is no .reginfo section in the file.\n";
2320 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2321 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) {
2322 W.startLine() << "The .reginfo section has a wrong size.\n";
2326 DictScope GS(W, "MIPS RegInfo");
2327 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data());
2328 printMipsReginfoData(W, *Reginfo);
2331 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() {
2332 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options");
2334 W.startLine() << "There is no .MIPS.options section in the file.\n";
2338 DictScope GS(W, "MIPS Options");
2340 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2341 while (!Sec.empty()) {
2342 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) {
2343 W.startLine() << "The .MIPS.options section has a wrong size.\n";
2346 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data());
2347 DictScope GS(W, getElfMipsOptionsOdkType(O->kind));
2350 printMipsReginfoData(W, O->getRegInfo());
2353 W.startLine() << "Unsupported MIPS options tag.\n";
2356 Sec = Sec.slice(O->size);
2360 template <class ELFT> void ELFDumper<ELFT>::printAMDGPUCodeObjectMetadata() {
2361 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".note");
2363 W.startLine() << "There is no .note section in the file.\n";
2366 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2368 const uint32_t RuntimeMDNoteType = 10;
2369 for (auto I = reinterpret_cast<const Elf_Word *>(&Sec[0]),
2370 E = I + Sec.size()/4; I != E;) {
2371 uint32_t NameSZ = I[0];
2372 uint32_t DescSZ = I[1];
2373 uint32_t Type = I[2];
2378 Name = StringRef(reinterpret_cast<const char *>(I), NameSZ - 1);
2379 I += alignTo<4>(NameSZ)/4;
2382 if (Name == "AMD" && Type == RuntimeMDNoteType) {
2383 StringRef Desc(reinterpret_cast<const char *>(I), DescSZ);
2384 W.printString(Desc);
2386 I += alignTo<4>(DescSZ)/4;
2390 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const {
2391 const Elf_Shdr *StackMapSection = nullptr;
2392 for (const auto &Sec : unwrapOrError(Obj->sections())) {
2393 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2394 if (Name == ".llvm_stackmaps") {
2395 StackMapSection = &Sec;
2400 if (!StackMapSection)
2403 StringRef StackMapContents;
2404 ArrayRef<uint8_t> StackMapContentsArray =
2405 unwrapOrError(Obj->getSectionContents(StackMapSection));
2407 prettyPrintStackMap(llvm::outs(), StackMapV2Parser<ELFT::TargetEndianness>(
2408 StackMapContentsArray));
2411 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() {
2412 ELFDumperStyle->printGroupSections(Obj);
2415 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1,
2419 OS.PadToColumn(37u);
2424 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
2425 const Elf_Ehdr *e = Obj->getHeader();
2426 OS << "ELF Header:\n";
2429 for (int i = 0; i < ELF::EI_NIDENT; i++)
2430 OS << format(" %02x", static_cast<int>(e->e_ident[i]));
2432 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
2433 printFields(OS, "Class:", Str);
2434 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding));
2435 printFields(OS, "Data:", Str);
2438 OS.PadToColumn(37u);
2439 OS << to_hexString(e->e_ident[ELF::EI_VERSION]);
2440 if (e->e_version == ELF::EV_CURRENT)
2443 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI));
2444 printFields(OS, "OS/ABI:", Str);
2445 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]);
2446 printFields(OS, "ABI Version:", Str);
2447 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType));
2448 printFields(OS, "Type:", Str);
2449 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType));
2450 printFields(OS, "Machine:", Str);
2451 Str = "0x" + to_hexString(e->e_version);
2452 printFields(OS, "Version:", Str);
2453 Str = "0x" + to_hexString(e->e_entry);
2454 printFields(OS, "Entry point address:", Str);
2455 Str = to_string(e->e_phoff) + " (bytes into file)";
2456 printFields(OS, "Start of program headers:", Str);
2457 Str = to_string(e->e_shoff) + " (bytes into file)";
2458 printFields(OS, "Start of section headers:", Str);
2459 Str = "0x" + to_hexString(e->e_flags);
2460 printFields(OS, "Flags:", Str);
2461 Str = to_string(e->e_ehsize) + " (bytes)";
2462 printFields(OS, "Size of this header:", Str);
2463 Str = to_string(e->e_phentsize) + " (bytes)";
2464 printFields(OS, "Size of program headers:", Str);
2465 Str = to_string(e->e_phnum);
2466 printFields(OS, "Number of program headers:", Str);
2467 Str = to_string(e->e_shentsize) + " (bytes)";
2468 printFields(OS, "Size of section headers:", Str);
2469 Str = to_string(e->e_shnum);
2470 printFields(OS, "Number of section headers:", Str);
2471 Str = to_string(e->e_shstrndx);
2472 printFields(OS, "Section header string table index:", Str);
2475 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) {
2476 uint32_t SectionIndex = 0;
2477 bool HasGroups = false;
2478 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2479 if (Sec.sh_type == ELF::SHT_GROUP) {
2481 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
2482 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
2483 const Elf_Sym *Signature =
2484 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info));
2485 ArrayRef<Elf_Word> Data = unwrapOrError(
2486 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
2487 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2488 OS << "\n" << getGroupType(Data[0]) << " group section ["
2489 << format_decimal(SectionIndex, 5) << "] `" << Name << "' ["
2490 << StrTable.data() + Signature->st_name << "] contains "
2491 << (Data.size() - 1) << " sections:\n"
2492 << " [Index] Name\n";
2493 for (auto &Ndx : Data.slice(1)) {
2494 auto Sec = unwrapOrError(Obj->getSection(Ndx));
2495 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
2496 OS << " [" << format_decimal(Ndx, 5) << "] " << Name
2503 OS << "There are no section groups in this file.\n";
2506 template <class ELFT>
2507 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
2508 const Elf_Rela &R, bool IsRela) {
2509 std::string Offset, Info, Addend = "", Value;
2510 SmallString<32> RelocName;
2511 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
2512 StringRef TargetName;
2513 const Elf_Sym *Sym = nullptr;
2514 unsigned Width = ELFT::Is64Bits ? 16 : 8;
2515 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2517 // First two fields are bit width dependent. The rest of them are after are
2519 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
2520 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
2521 Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab));
2522 if (Sym && Sym->getType() == ELF::STT_SECTION) {
2523 const Elf_Shdr *Sec = unwrapOrError(
2524 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
2525 TargetName = unwrapOrError(Obj->getSectionName(Sec));
2527 TargetName = unwrapOrError(Sym->getName(StrTable));
2530 if (Sym && IsRela) {
2537 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
2538 Info = to_string(format_hex_no_prefix(R.r_info, Width));
2540 int64_t RelAddend = R.r_addend;
2542 Addend += to_hexString(std::abs(RelAddend), false);
2545 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
2547 Fields[0].Str = Offset;
2548 Fields[1].Str = Info;
2549 Fields[2].Str = RelocName;
2550 Fields[3].Str = Value;
2551 Fields[4].Str = TargetName;
2552 for (auto &field : Fields)
2558 static inline void printRelocHeader(raw_ostream &OS, bool Is64, bool IsRela) {
2560 OS << " Offset Info Type"
2561 << " Symbol's Value Symbol's Name";
2563 OS << " Offset Info Type Sym. Value "
2566 OS << (IsRela ? " + Addend" : "");
2570 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) {
2571 bool HasRelocSections = false;
2572 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2573 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA)
2575 HasRelocSections = true;
2576 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2577 unsigned Entries = Sec.getEntityCount();
2578 uintX_t Offset = Sec.sh_offset;
2579 OS << "\nRelocation section '" << Name << "' at offset 0x"
2580 << to_hexString(Offset, false) << " contains " << Entries
2582 printRelocHeader(OS, ELFT::Is64Bits, (Sec.sh_type == ELF::SHT_RELA));
2583 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link));
2584 if (Sec.sh_type == ELF::SHT_REL) {
2585 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) {
2587 Rela.r_offset = R.r_offset;
2588 Rela.r_info = R.r_info;
2590 printRelocation(Obj, SymTab, Rela, false);
2593 for (const auto &R : unwrapOrError(Obj->relas(&Sec)))
2594 printRelocation(Obj, SymTab, R, true);
2597 if (!HasRelocSections)
2598 OS << "\nThere are no relocations in this file.\n";
2601 std::string getSectionTypeString(unsigned Arch, unsigned Type) {
2602 using namespace ELF;
2608 case SHT_ARM_PREEMPTMAP:
2609 return "ARM_PREEMPTMAP";
2610 case SHT_ARM_ATTRIBUTES:
2611 return "ARM_ATTRIBUTES";
2612 case SHT_ARM_DEBUGOVERLAY:
2613 return "ARM_DEBUGOVERLAY";
2614 case SHT_ARM_OVERLAYSECTION:
2615 return "ARM_OVERLAYSECTION";
2619 case SHT_X86_64_UNWIND:
2620 return "X86_64_UNWIND";
2623 case EM_MIPS_RS3_LE:
2625 case SHT_MIPS_REGINFO:
2626 return "MIPS_REGINFO";
2627 case SHT_MIPS_OPTIONS:
2628 return "MIPS_OPTIONS";
2629 case SHT_MIPS_ABIFLAGS:
2630 return "MIPS_ABIFLAGS";
2631 case SHT_MIPS_DWARF:
2632 return "SHT_MIPS_DWARF";
2660 case SHT_INIT_ARRAY:
2661 return "INIT_ARRAY";
2662 case SHT_FINI_ARRAY:
2663 return "FINI_ARRAY";
2664 case SHT_PREINIT_ARRAY:
2665 return "PREINIT_ARRAY";
2668 case SHT_SYMTAB_SHNDX:
2669 return "SYMTAB SECTION INDICES";
2670 // FIXME: Parse processor specific GNU attributes
2671 case SHT_GNU_ATTRIBUTES:
2672 return "ATTRIBUTES";
2675 case SHT_GNU_verdef:
2677 case SHT_GNU_verneed:
2679 case SHT_GNU_versym:
2687 template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) {
2688 size_t SectionIndex = 0;
2689 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize,
2694 if (ELFT::Is64Bits) {
2701 OS << "There are " << to_string(Obj->getHeader()->e_shnum)
2702 << " section headers, starting at offset "
2703 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n";
2704 OS << "Section Headers:\n";
2705 Field Fields[11] = {{"[Nr]", 2},
2710 {"Size", 65 - Bias},
2716 for (auto &f : Fields)
2720 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2721 Number = to_string(SectionIndex);
2722 Fields[0].Str = Number;
2723 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec));
2724 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type);
2725 Fields[2].Str = Type;
2726 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width));
2727 Fields[3].Str = Address;
2728 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6));
2729 Fields[4].Str = Offset;
2730 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6));
2731 Fields[5].Str = Size;
2732 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2));
2733 Fields[6].Str = EntrySize;
2734 Flags = getGNUFlags(Sec.sh_flags);
2735 Fields[7].Str = Flags;
2736 Link = to_string(Sec.sh_link);
2737 Fields[8].Str = Link;
2738 Info = to_string(Sec.sh_info);
2739 Fields[9].Str = Info;
2740 Alignment = to_string(Sec.sh_addralign);
2741 Fields[10].Str = Alignment;
2742 OS.PadToColumn(Fields[0].Column);
2743 OS << "[" << right_justify(Fields[0].Str, 2) << "]";
2744 for (int i = 1; i < 7; i++)
2745 printField(Fields[i]);
2746 OS.PadToColumn(Fields[7].Column);
2747 OS << right_justify(Fields[7].Str, 3);
2748 OS.PadToColumn(Fields[8].Column);
2749 OS << right_justify(Fields[8].Str, 2);
2750 OS.PadToColumn(Fields[9].Column);
2751 OS << right_justify(Fields[9].Str, 3);
2752 OS.PadToColumn(Fields[10].Column);
2753 OS << right_justify(Fields[10].Str, 2);
2757 OS << "Key to Flags:\n"
2758 << " W (write), A (alloc), X (execute), M (merge), S (strings), l "
2760 << " I (info), L (link order), G (group), T (TLS), E (exclude),\
2762 << " O (extra OS processing required) o (OS specific),\
2763 p (processor specific)\n";
2766 template <class ELFT>
2767 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name,
2770 OS << "\nSymbol table '" << Name << "' contains " << Entries
2773 OS << "\n Symbol table for image:\n";
2776 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2778 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2781 template <class ELFT>
2782 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj,
2783 const Elf_Sym *Symbol,
2784 const Elf_Sym *FirstSym) {
2785 unsigned SectionIndex = Symbol->st_shndx;
2786 switch (SectionIndex) {
2787 case ELF::SHN_UNDEF:
2791 case ELF::SHN_COMMON:
2793 case ELF::SHN_XINDEX:
2794 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>(
2795 Symbol, FirstSym, this->dumper()->getShndxTable()));
2798 // Processor specific
2799 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC)
2800 return std::string("PRC[0x") +
2801 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2803 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS)
2804 return std::string("OS[0x") +
2805 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2806 // Architecture reserved:
2807 if (SectionIndex >= ELF::SHN_LORESERVE &&
2808 SectionIndex <= ELF::SHN_HIRESERVE)
2809 return std::string("RSV[0x") +
2810 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2811 // A normal section with an index
2812 return to_string(format_decimal(SectionIndex, 3));
2816 template <class ELFT>
2817 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
2818 const Elf_Sym *FirstSym, StringRef StrTable,
2821 static bool Dynamic = true;
2824 // If this function was called with a different value from IsDynamic
2825 // from last call, happens when we move from dynamic to static symbol
2826 // table, "Num" field should be reset.
2827 if (!Dynamic != !IsDynamic) {
2831 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section;
2833 if (ELFT::Is64Bits) {
2840 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias,
2841 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias};
2842 Num = to_string(format_decimal(Idx++, 6)) + ":";
2843 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width));
2844 Size = to_string(format_decimal(Symbol->st_size, 5));
2845 unsigned char SymbolType = Symbol->getType();
2846 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
2847 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
2848 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
2850 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
2851 unsigned Vis = Symbol->getVisibility();
2852 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
2853 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities));
2854 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym);
2855 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
2856 Fields[0].Str = Num;
2857 Fields[1].Str = Value;
2858 Fields[2].Str = Size;
2859 Fields[3].Str = Type;
2860 Fields[4].Str = Binding;
2861 Fields[5].Str = Visibility;
2862 Fields[6].Str = Section;
2863 Fields[7].Str = Name;
2864 for (auto &Entry : Fields)
2868 template <class ELFT>
2869 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym,
2870 uint32_t Sym, StringRef StrTable,
2872 std::string Num, Buc, Name, Value, Size, Binding, Type, Visibility, Section;
2873 unsigned Width, Bias = 0;
2874 if (ELFT::Is64Bits) {
2881 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias,
2882 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias};
2883 Num = to_string(format_decimal(Sym, 5));
2884 Buc = to_string(format_decimal(Bucket, 3)) + ":";
2886 const auto Symbol = FirstSym + Sym;
2887 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width));
2888 Size = to_string(format_decimal(Symbol->st_size, 5));
2889 unsigned char SymbolType = Symbol->getType();
2890 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
2891 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
2892 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
2894 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
2895 unsigned Vis = Symbol->getVisibility();
2896 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
2897 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities));
2898 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym);
2899 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, true);
2900 Fields[0].Str = Num;
2901 Fields[1].Str = Buc;
2902 Fields[2].Str = Value;
2903 Fields[3].Str = Size;
2904 Fields[4].Str = Type;
2905 Fields[5].Str = Binding;
2906 Fields[6].Str = Visibility;
2907 Fields[7].Str = Section;
2908 Fields[8].Str = Name;
2909 for (auto &Entry : Fields)
2914 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) {
2915 if (opts::DynamicSymbols)
2917 this->dumper()->printSymbolsHelper(true);
2918 this->dumper()->printSymbolsHelper(false);
2921 template <class ELFT>
2922 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
2923 if (this->dumper()->getDynamicStringTable().size() == 0)
2925 auto StringTable = this->dumper()->getDynamicStringTable();
2926 auto DynSyms = this->dumper()->dynamic_symbols();
2927 auto GnuHash = this->dumper()->getGnuHashTable();
2928 auto SysVHash = this->dumper()->getHashTable();
2930 // If no hash or .gnu.hash found, try using symbol table
2931 if (GnuHash == nullptr && SysVHash == nullptr)
2932 this->dumper()->printSymbolsHelper(true);
2934 // Try printing .hash
2935 if (this->dumper()->getHashTable()) {
2936 OS << "\n Symbol table of .hash for image:\n";
2938 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2940 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2943 uint32_t NBuckets = SysVHash->nbucket;
2944 uint32_t NChains = SysVHash->nchain;
2945 auto Buckets = SysVHash->buckets();
2946 auto Chains = SysVHash->chains();
2947 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) {
2948 if (Buckets[Buc] == ELF::STN_UNDEF)
2950 for (uint32_t Ch = Buckets[Buc]; Ch < NChains; Ch = Chains[Ch]) {
2951 if (Ch == ELF::STN_UNDEF)
2953 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc);
2958 // Try printing .gnu.hash
2960 OS << "\n Symbol table of .gnu.hash for image:\n";
2962 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2964 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2966 uint32_t NBuckets = GnuHash->nbuckets;
2967 auto Buckets = GnuHash->buckets();
2968 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) {
2969 if (Buckets[Buc] == ELF::STN_UNDEF)
2971 uint32_t Index = Buckets[Buc];
2972 uint32_t GnuHashable = Index - GnuHash->symndx;
2973 // Print whole chain
2975 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc);
2976 // Chain ends at symbol with stopper bit
2977 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1)
2984 static inline std::string printPhdrFlags(unsigned Flag) {
2986 Str = (Flag & PF_R) ? "R" : " ";
2987 Str += (Flag & PF_W) ? "W" : " ";
2988 Str += (Flag & PF_X) ? "E" : " ";
2992 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO
2993 // PT_TLS must only have SHF_TLS sections
2994 template <class ELFT>
2995 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr,
2996 const Elf_Shdr &Sec) {
2997 return (((Sec.sh_flags & ELF::SHF_TLS) &&
2998 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) ||
2999 (Phdr.p_type == ELF::PT_GNU_RELRO))) ||
3000 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS));
3003 // Non-SHT_NOBITS must have its offset inside the segment
3004 // Only non-zero section can be at end of segment
3005 template <class ELFT>
3006 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3007 if (Sec.sh_type == ELF::SHT_NOBITS)
3010 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
3011 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
3013 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
3014 if (Sec.sh_offset >= Phdr.p_offset)
3015 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset)
3016 /*only non-zero sized sections at end*/ &&
3017 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz));
3021 // SHF_ALLOC must have VMA inside segment
3022 // Only non-zero section can be at end of segment
3023 template <class ELFT>
3024 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3025 if (!(Sec.sh_flags & ELF::SHF_ALLOC))
3028 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
3029 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
3031 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
3032 if (Sec.sh_addr >= Phdr.p_vaddr)
3033 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) &&
3034 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz));
3038 // No section with zero size must be at start or end of PT_DYNAMIC
3039 template <class ELFT>
3040 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3041 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0)
3043 // Is section within the phdr both based on offset and VMA ?
3044 return ((Sec.sh_type == ELF::SHT_NOBITS) ||
3045 (Sec.sh_offset > Phdr.p_offset &&
3046 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) &&
3047 (!(Sec.sh_flags & ELF::SHF_ALLOC) ||
3048 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz));
3051 template <class ELFT>
3052 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
3053 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3054 unsigned Width = ELFT::Is64Bits ? 18 : 10;
3055 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7;
3056 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align;
3058 const Elf_Ehdr *Header = Obj->getHeader();
3059 Field Fields[8] = {2, 17, 26, 37 + Bias,
3060 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias};
3061 OS << "\nElf file type is "
3062 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n"
3063 << "Entry point " << format_hex(Header->e_entry, 3) << "\n"
3064 << "There are " << Header->e_phnum << " program headers,"
3065 << " starting at offset " << Header->e_phoff << "\n\n"
3066 << "Program Headers:\n";
3068 OS << " Type Offset VirtAddr PhysAddr "
3069 << " FileSiz MemSiz Flg Align\n";
3071 OS << " Type Offset VirtAddr PhysAddr FileSiz "
3072 << "MemSiz Flg Align\n";
3073 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) {
3074 Type = getElfPtType(Header->e_machine, Phdr.p_type);
3075 Offset = to_string(format_hex(Phdr.p_offset, 8));
3076 VMA = to_string(format_hex(Phdr.p_vaddr, Width));
3077 LMA = to_string(format_hex(Phdr.p_paddr, Width));
3078 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth));
3079 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth));
3080 Flag = printPhdrFlags(Phdr.p_flags);
3081 Align = to_string(format_hex(Phdr.p_align, 1));
3082 Fields[0].Str = Type;
3083 Fields[1].Str = Offset;
3084 Fields[2].Str = VMA;
3085 Fields[3].Str = LMA;
3086 Fields[4].Str = FileSz;
3087 Fields[5].Str = MemSz;
3088 Fields[6].Str = Flag;
3089 Fields[7].Str = Align;
3090 for (auto Field : Fields)
3092 if (Phdr.p_type == ELF::PT_INTERP) {
3093 OS << "\n [Requesting program interpreter: ";
3094 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]";
3098 OS << "\n Section to Segment mapping:\n Segment Sections...\n";
3100 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
3101 std::string Sections;
3102 OS << format(" %2.2d ", Phnum++);
3103 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3104 // Check if each section is in a segment and then print mapping.
3105 // readelf additionally makes sure it does not print zero sized sections
3106 // at end of segments and for PT_DYNAMIC both start and end of section
3107 // .tbss must only be shown in PT_TLS section.
3108 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) &&
3109 ((Sec.sh_flags & ELF::SHF_TLS) != 0) &&
3110 Phdr.p_type != ELF::PT_TLS;
3111 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) &&
3112 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) &&
3113 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL))
3114 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " ";
3116 OS << Sections << "\n";
3121 template <class ELFT>
3122 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R,
3124 SmallString<32> RelocName;
3125 StringRef SymbolName;
3126 unsigned Width = ELFT::Is64Bits ? 16 : 8;
3127 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3128 // First two fields are bit width dependent. The rest of them are after are
3130 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
3132 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL());
3133 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
3134 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
3136 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
3137 std::string Addend = "", Info, Offset, Value;
3138 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
3139 Info = to_string(format_hex_no_prefix(R.r_info, Width));
3140 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
3141 int64_t RelAddend = R.r_addend;
3142 if (SymbolName.size() && IsRela) {
3149 if (!SymbolName.size() && Sym->getValue() == 0)
3153 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1));
3156 Fields[0].Str = Offset;
3157 Fields[1].Str = Info;
3158 Fields[2].Str = RelocName.c_str();
3159 Fields[3].Str = Value;
3160 Fields[4].Str = SymbolName;
3161 for (auto &Field : Fields)
3167 template <class ELFT>
3168 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3169 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3170 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3171 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3172 if (DynRelaRegion.Size > 0) {
3173 OS << "\n'RELA' relocation section at offset "
3174 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) -
3176 1) << " contains " << DynRelaRegion.Size << " bytes:\n";
3177 printRelocHeader(OS, ELFT::Is64Bits, true);
3178 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3179 printDynamicRelocation(Obj, Rela, true);
3181 if (DynRelRegion.Size > 0) {
3182 OS << "\n'REL' relocation section at offset "
3183 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) -
3185 1) << " contains " << DynRelRegion.Size << " bytes:\n";
3186 printRelocHeader(OS, ELFT::Is64Bits, false);
3187 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3189 Rela.r_offset = Rel.r_offset;
3190 Rela.r_info = Rel.r_info;
3192 printDynamicRelocation(Obj, Rela, false);
3195 if (DynPLTRelRegion.Size) {
3196 OS << "\n'PLT' relocation section at offset "
3197 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) -
3199 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n";
3201 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) {
3202 printRelocHeader(OS, ELFT::Is64Bits, true);
3203 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
3204 printDynamicRelocation(Obj, Rela, true);
3206 printRelocHeader(OS, ELFT::Is64Bits, false);
3207 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
3209 Rela.r_offset = Rel.r_offset;
3210 Rela.r_info = Rel.r_info;
3212 printDynamicRelocation(Obj, Rela, false);
3217 // Hash histogram shows statistics of how efficient the hash was for the
3218 // dynamic symbol table. The table shows number of hash buckets for different
3219 // lengths of chains as absolute number and percentage of the total buckets.
3220 // Additionally cumulative coverage of symbols for each set of buckets.
3221 template <class ELFT>
3222 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
3224 const Elf_Hash *HashTable = this->dumper()->getHashTable();
3225 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable();
3227 // Print histogram for .hash section
3229 size_t NBucket = HashTable->nbucket;
3230 size_t NChain = HashTable->nchain;
3231 ArrayRef<Elf_Word> Buckets = HashTable->buckets();
3232 ArrayRef<Elf_Word> Chains = HashTable->chains();
3233 size_t TotalSyms = 0;
3234 // If hash table is correct, we have at least chains with 0 length
3235 size_t MaxChain = 1;
3236 size_t CumulativeNonZero = 0;
3238 if (NChain == 0 || NBucket == 0)
3241 std::vector<size_t> ChainLen(NBucket, 0);
3242 // Go over all buckets and and note chain lengths of each bucket (total
3243 // unique chain lengths).
3244 for (size_t B = 0; B < NBucket; B++) {
3245 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C])
3246 if (MaxChain <= ++ChainLen[B])
3248 TotalSyms += ChainLen[B];
3254 std::vector<size_t> Count(MaxChain, 0) ;
3255 // Count how long is the chain for each bucket
3256 for (size_t B = 0; B < NBucket; B++)
3257 ++Count[ChainLen[B]];
3258 // Print Number of buckets with each chain lengths and their cumulative
3259 // coverage of the symbols
3260 OS << "Histogram for bucket list length (total of " << NBucket
3262 << " Length Number % of total Coverage\n";
3263 for (size_t I = 0; I < MaxChain; I++) {
3264 CumulativeNonZero += Count[I] * I;
3265 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3266 (Count[I] * 100.0) / NBucket,
3267 (CumulativeNonZero * 100.0) / TotalSyms);
3271 // Print histogram for .gnu.hash section
3273 size_t NBucket = GnuHashTable->nbuckets;
3274 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets();
3275 unsigned NumSyms = this->dumper()->dynamic_symbols().size();
3278 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms);
3279 size_t Symndx = GnuHashTable->symndx;
3280 size_t TotalSyms = 0;
3281 size_t MaxChain = 1;
3282 size_t CumulativeNonZero = 0;
3284 if (Chains.size() == 0 || NBucket == 0)
3287 std::vector<size_t> ChainLen(NBucket, 0);
3289 for (size_t B = 0; B < NBucket; B++) {
3293 for (size_t C = Buckets[B] - Symndx;
3294 C < Chains.size() && (Chains[C] & 1) == 0; C++)
3295 if (MaxChain < ++Len)
3305 std::vector<size_t> Count(MaxChain, 0) ;
3306 for (size_t B = 0; B < NBucket; B++)
3307 ++Count[ChainLen[B]];
3308 // Print Number of buckets with each chain lengths and their cumulative
3309 // coverage of the symbols
3310 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket
3312 << " Length Number % of total Coverage\n";
3313 for (size_t I = 0; I <MaxChain; I++) {
3314 CumulativeNonZero += Count[I] * I;
3315 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3316 (Count[I] * 100.0) / NBucket,
3317 (CumulativeNonZero * 100.0) / TotalSyms);
3322 static std::string getGNUNoteTypeName(const uint32_t NT) {
3323 static const struct {
3327 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"},
3328 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"},
3329 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"},
3330 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"},
3333 for (const auto &Note : Notes)
3335 return std::string(Note.Name);
3338 raw_string_ostream OS(string);
3339 OS << format("Unknown note type (0x%08x)", NT);
3343 static std::string getFreeBSDNoteTypeName(const uint32_t NT) {
3344 static const struct {
3348 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"},
3349 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"},
3350 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"},
3351 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"},
3352 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"},
3353 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"},
3354 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"},
3355 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"},
3356 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS,
3357 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"},
3358 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"},
3361 for (const auto &Note : Notes)
3363 return std::string(Note.Name);
3366 raw_string_ostream OS(string);
3367 OS << format("Unknown note type (0x%08x)", NT);
3371 template <typename ELFT>
3372 static void printGNUNote(raw_ostream &OS, uint32_t NoteType,
3373 ArrayRef<typename ELFFile<ELFT>::Elf_Word> Words) {
3377 case ELF::NT_GNU_ABI_TAG: {
3378 static const char *OSNames[] = {
3379 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl",
3382 StringRef OSName = "Unknown";
3383 if (Words[0] < array_lengthof(OSNames))
3384 OSName = OSNames[Words[0]];
3385 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3];
3387 if (Words.size() < 4)
3388 OS << " <corrupt GNU_ABI_TAG>";
3390 OS << " OS: " << OSName << ", ABI: " << Major << "." << Minor << "."
3394 case ELF::NT_GNU_BUILD_ID: {
3395 OS << " Build ID: ";
3396 ArrayRef<uint8_t> ID(reinterpret_cast<const uint8_t *>(Words.data()),
3398 for (const auto &B : ID)
3399 OS << format_hex_no_prefix(B, 2);
3402 case ELF::NT_GNU_GOLD_VERSION:
3404 << StringRef(reinterpret_cast<const char *>(Words.data()),
3412 template <class ELFT>
3413 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
3414 const Elf_Ehdr *e = Obj->getHeader();
3415 bool IsCore = e->e_type == ELF::ET_CORE;
3417 auto process = [&](const typename ELFFile<ELFT>::Elf_Off Offset,
3418 const typename ELFFile<ELFT>::Elf_Addr Size) {
3422 const auto *P = static_cast<const uint8_t *>(Obj->base() + Offset);
3423 const auto *E = P + Size;
3425 OS << "Displaying notes found at file offset " << format_hex(Offset, 10)
3426 << " with length " << format_hex(Size, 10) << ":\n"
3427 << " Owner Data size\tDescription\n";
3430 const Elf_Word *Words = reinterpret_cast<const Elf_Word *>(&P[0]);
3432 uint32_t NameSize = Words[0];
3433 uint32_t DescriptorSize = Words[1];
3434 uint32_t Type = Words[2];
3436 ArrayRef<Elf_Word> Descriptor(&Words[3 + (alignTo<4>(NameSize) / 4)],
3437 alignTo<4>(DescriptorSize) / 4);
3442 StringRef(reinterpret_cast<const char *>(&Words[3]), NameSize - 1);
3444 OS << " " << Name << std::string(22 - NameSize, ' ')
3445 << format_hex(DescriptorSize, 10) << '\t';
3447 if (Name == "GNU") {
3448 OS << getGNUNoteTypeName(Type) << '\n';
3449 printGNUNote<ELFT>(OS, Type, Descriptor);
3450 } else if (Name == "FreeBSD") {
3451 OS << getFreeBSDNoteTypeName(Type) << '\n';
3453 OS << "Unknown note type: (" << format_hex(Type, 10) << ')';
3457 P = P + 3 * sizeof(Elf_Word) + alignTo<4>(NameSize) +
3458 alignTo<4>(DescriptorSize);
3463 for (const auto &P : unwrapOrError(Obj->program_headers()))
3464 if (P.p_type == PT_NOTE)
3465 process(P.p_offset, P.p_filesz);
3467 for (const auto &S : unwrapOrError(Obj->sections()))
3468 if (S.sh_type == SHT_NOTE)
3469 process(S.sh_offset, S.sh_size);
3473 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
3474 const Elf_Ehdr *e = Obj->getHeader();
3476 DictScope D(W, "ElfHeader");
3478 DictScope D(W, "Ident");
3479 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4));
3480 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
3481 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA],
3482 makeArrayRef(ElfDataEncoding));
3483 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]);
3485 // Handle architecture specific OS/ABI values.
3486 if (e->e_machine == ELF::EM_AMDGPU &&
3487 e->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA)
3488 W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA);
3490 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI],
3491 makeArrayRef(ElfOSABI));
3492 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]);
3493 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD));
3496 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType));
3497 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType));
3498 W.printNumber("Version", e->e_version);
3499 W.printHex("Entry", e->e_entry);
3500 W.printHex("ProgramHeaderOffset", e->e_phoff);
3501 W.printHex("SectionHeaderOffset", e->e_shoff);
3502 if (e->e_machine == EM_MIPS)
3503 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags),
3504 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
3505 unsigned(ELF::EF_MIPS_MACH));
3507 W.printFlags("Flags", e->e_flags);
3508 W.printNumber("HeaderSize", e->e_ehsize);
3509 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize);
3510 W.printNumber("ProgramHeaderCount", e->e_phnum);
3511 W.printNumber("SectionHeaderEntrySize", e->e_shentsize);
3512 W.printNumber("SectionHeaderCount", e->e_shnum);
3513 W.printNumber("StringTableSectionIndex", e->e_shstrndx);
3517 template <class ELFT>
3518 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) {
3519 DictScope Lists(W, "Groups");
3520 uint32_t SectionIndex = 0;
3521 bool HasGroups = false;
3522 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3523 if (Sec.sh_type == ELF::SHT_GROUP) {
3525 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
3526 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
3527 const Elf_Sym *Sym =
3528 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info));
3529 auto Data = unwrapOrError(
3530 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
3531 DictScope D(W, "Group");
3532 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3533 W.printNumber("Name", Name, Sec.sh_name);
3534 W.printNumber("Index", SectionIndex);
3535 W.printHex("Type", getGroupType(Data[0]), Data[0]);
3536 W.startLine() << "Signature: " << StrTable.data() + Sym->st_name << "\n";
3538 ListScope L(W, "Section(s) in group");
3540 while (Member < Data.size()) {
3541 auto Sec = unwrapOrError(Obj->getSection(Data[Member]));
3542 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
3543 W.startLine() << Name << " (" << Data[Member++] << ")\n";
3550 W.startLine() << "There are no group sections in the file.\n";
3553 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) {
3554 ListScope D(W, "Relocations");
3556 int SectionNumber = -1;
3557 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3560 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA)
3563 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3565 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
3568 printRelocations(&Sec, Obj);
3571 W.startLine() << "}\n";
3575 template <class ELFT>
3576 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) {
3577 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link));
3579 switch (Sec->sh_type) {
3581 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) {
3583 Rela.r_offset = R.r_offset;
3584 Rela.r_info = R.r_info;
3586 printRelocation(Obj, Rela, SymTab);
3590 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec)))
3591 printRelocation(Obj, R, SymTab);
3596 template <class ELFT>
3597 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel,
3598 const Elf_Shdr *SymTab) {
3599 SmallString<32> RelocName;
3600 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
3601 StringRef TargetName;
3602 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab));
3603 if (Sym && Sym->getType() == ELF::STT_SECTION) {
3604 const Elf_Shdr *Sec = unwrapOrError(
3605 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
3606 TargetName = unwrapOrError(Obj->getSectionName(Sec));
3608 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
3609 TargetName = unwrapOrError(Sym->getName(StrTable));
3612 if (opts::ExpandRelocs) {
3613 DictScope Group(W, "Relocation");
3614 W.printHex("Offset", Rel.r_offset);
3615 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
3616 W.printNumber("Symbol", TargetName.size() > 0 ? TargetName : "-",
3617 Rel.getSymbol(Obj->isMips64EL()));
3618 W.printHex("Addend", Rel.r_addend);
3620 raw_ostream &OS = W.startLine();
3621 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
3622 << (TargetName.size() > 0 ? TargetName : "-") << " "
3623 << W.hex(Rel.r_addend) << "\n";
3627 template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) {
3628 ListScope SectionsD(W, "Sections");
3630 int SectionIndex = -1;
3631 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3634 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3636 DictScope SectionD(W, "Section");
3637 W.printNumber("Index", SectionIndex);
3638 W.printNumber("Name", Name, Sec.sh_name);
3640 getElfSectionType(Obj->getHeader()->e_machine, Sec.sh_type),
3642 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags),
3643 std::end(ElfSectionFlags));
3644 switch (Obj->getHeader()->e_machine) {
3646 SectionFlags.insert(SectionFlags.end(), std::begin(ElfAMDGPUSectionFlags),
3647 std::end(ElfAMDGPUSectionFlags));
3650 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags),
3651 std::end(ElfARMSectionFlags));
3654 SectionFlags.insert(SectionFlags.end(),
3655 std::begin(ElfHexagonSectionFlags),
3656 std::end(ElfHexagonSectionFlags));
3659 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags),
3660 std::end(ElfMipsSectionFlags));
3663 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags),
3664 std::end(ElfX86_64SectionFlags));
3667 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags),
3668 std::end(ElfXCoreSectionFlags));
3674 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags));
3675 W.printHex("Address", Sec.sh_addr);
3676 W.printHex("Offset", Sec.sh_offset);
3677 W.printNumber("Size", Sec.sh_size);
3678 W.printNumber("Link", Sec.sh_link);
3679 W.printNumber("Info", Sec.sh_info);
3680 W.printNumber("AddressAlignment", Sec.sh_addralign);
3681 W.printNumber("EntrySize", Sec.sh_entsize);
3683 if (opts::SectionRelocations) {
3684 ListScope D(W, "Relocations");
3685 printRelocations(&Sec, Obj);
3688 if (opts::SectionSymbols) {
3689 ListScope D(W, "Symbols");
3690 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec();
3691 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
3693 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) {
3694 const Elf_Shdr *SymSec = unwrapOrError(
3695 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable()));
3697 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(),
3702 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) {
3703 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec));
3704 W.printBinaryBlock("SectionData",
3705 StringRef((const char *)Data.data(), Data.size()));
3710 template <class ELFT>
3711 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
3712 const Elf_Sym *First, StringRef StrTable,
3714 unsigned SectionIndex = 0;
3715 StringRef SectionName;
3716 getSectionNameIndex(*Obj, Symbol, First, this->dumper()->getShndxTable(),
3717 SectionName, SectionIndex);
3718 std::string FullSymbolName =
3719 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
3720 unsigned char SymbolType = Symbol->getType();
3722 DictScope D(W, "Symbol");
3723 W.printNumber("Name", FullSymbolName, Symbol->st_name);
3724 W.printHex("Value", Symbol->st_value);
3725 W.printNumber("Size", Symbol->st_size);
3726 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
3727 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
3728 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
3729 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes));
3731 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes));
3732 if (Symbol->st_other == 0)
3733 // Usually st_other flag is zero. Do not pollute the output
3734 // by flags enumeration in that case.
3735 W.printNumber("Other", 0);
3737 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags),
3738 std::end(ElfSymOtherFlags));
3739 if (Obj->getHeader()->e_machine == EM_MIPS) {
3740 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16
3741 // flag overlapped with other ST_MIPS_xxx flags. So consider both
3742 // cases separately.
3743 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16)
3744 SymOtherFlags.insert(SymOtherFlags.end(),
3745 std::begin(ElfMips16SymOtherFlags),
3746 std::end(ElfMips16SymOtherFlags));
3748 SymOtherFlags.insert(SymOtherFlags.end(),
3749 std::begin(ElfMipsSymOtherFlags),
3750 std::end(ElfMipsSymOtherFlags));
3752 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u);
3754 W.printHex("Section", SectionName, SectionIndex);
3757 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) {
3758 ListScope Group(W, "Symbols");
3759 this->dumper()->printSymbolsHelper(false);
3762 template <class ELFT>
3763 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
3764 ListScope Group(W, "DynamicSymbols");
3765 this->dumper()->printSymbolsHelper(true);
3768 template <class ELFT>
3769 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3770 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3771 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3772 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3773 if (DynRelRegion.Size && DynRelaRegion.Size)
3774 report_fatal_error("There are both REL and RELA dynamic relocations");
3775 W.startLine() << "Dynamic Relocations {\n";
3777 if (DynRelaRegion.Size > 0)
3778 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3779 printDynamicRelocation(Obj, Rela);
3781 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3783 Rela.r_offset = Rel.r_offset;
3784 Rela.r_info = Rel.r_info;
3786 printDynamicRelocation(Obj, Rela);
3788 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela))
3789 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
3790 printDynamicRelocation(Obj, Rela);
3792 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
3794 Rela.r_offset = Rel.r_offset;
3795 Rela.r_info = Rel.r_info;
3797 printDynamicRelocation(Obj, Rela);
3800 W.startLine() << "}\n";
3803 template <class ELFT>
3804 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) {
3805 SmallString<32> RelocName;
3806 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
3807 StringRef SymbolName;
3808 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL());
3809 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
3811 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
3812 if (opts::ExpandRelocs) {
3813 DictScope Group(W, "Relocation");
3814 W.printHex("Offset", Rel.r_offset);
3815 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
3816 W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
3817 W.printHex("Addend", Rel.r_addend);
3819 raw_ostream &OS = W.startLine();
3820 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
3821 << (SymbolName.size() > 0 ? SymbolName : "-") << " "
3822 << W.hex(Rel.r_addend) << "\n";
3826 template <class ELFT>
3827 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
3828 ListScope L(W, "ProgramHeaders");
3830 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
3831 DictScope P(W, "ProgramHeader");
3833 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type),
3835 W.printHex("Offset", Phdr.p_offset);
3836 W.printHex("VirtualAddress", Phdr.p_vaddr);
3837 W.printHex("PhysicalAddress", Phdr.p_paddr);
3838 W.printNumber("FileSize", Phdr.p_filesz);
3839 W.printNumber("MemSize", Phdr.p_memsz);
3840 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags));
3841 W.printNumber("Alignment", Phdr.p_align);
3845 template <class ELFT>
3846 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
3847 W.startLine() << "Hash Histogram not implemented!\n";
3850 template <class ELFT>
3851 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
3852 W.startLine() << "printNotes not implemented!\n";