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 *getGroupType(uint32_t Flag) {
987 if (Flag & ELF::GRP_COMDAT)
993 static const EnumEntry<unsigned> ElfSectionFlags[] = {
994 ENUM_ENT(SHF_WRITE, "W"),
995 ENUM_ENT(SHF_ALLOC, "A"),
996 ENUM_ENT(SHF_EXCLUDE, "E"),
997 ENUM_ENT(SHF_EXECINSTR, "X"),
998 ENUM_ENT(SHF_MERGE, "M"),
999 ENUM_ENT(SHF_STRINGS, "S"),
1000 ENUM_ENT(SHF_INFO_LINK, "I"),
1001 ENUM_ENT(SHF_LINK_ORDER, "L"),
1002 ENUM_ENT(SHF_OS_NONCONFORMING, "o"),
1003 ENUM_ENT(SHF_GROUP, "G"),
1004 ENUM_ENT(SHF_TLS, "T"),
1005 ENUM_ENT(SHF_MASKOS, "o"),
1006 ENUM_ENT(SHF_MASKPROC, "p"),
1007 ENUM_ENT_1(SHF_COMPRESSED),
1010 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = {
1011 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
1012 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION)
1015 static const EnumEntry<unsigned> ElfAMDGPUSectionFlags[] = {
1016 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_GLOBAL),
1017 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_READONLY),
1018 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_CODE),
1019 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_AGENT)
1022 static const EnumEntry<unsigned> ElfARMSectionFlags[] = {
1023 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE)
1026 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = {
1027 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL)
1030 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = {
1031 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES),
1032 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ),
1033 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ),
1034 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP),
1035 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ),
1036 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ),
1037 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ),
1038 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING )
1041 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = {
1042 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE)
1045 static std::string getGNUFlags(uint64_t Flags) {
1047 for (auto Entry : ElfSectionFlags) {
1048 uint64_t Flag = Entry.Value & Flags;
1049 Flags &= ~Entry.Value;
1051 case ELF::SHF_WRITE:
1052 case ELF::SHF_ALLOC:
1053 case ELF::SHF_EXECINSTR:
1054 case ELF::SHF_MERGE:
1055 case ELF::SHF_STRINGS:
1056 case ELF::SHF_INFO_LINK:
1057 case ELF::SHF_LINK_ORDER:
1058 case ELF::SHF_OS_NONCONFORMING:
1059 case ELF::SHF_GROUP:
1061 case ELF::SHF_EXCLUDE:
1062 Str += Entry.AltName;
1065 if (Flag & ELF::SHF_MASKOS)
1067 else if (Flag & ELF::SHF_MASKPROC)
1076 static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
1077 // Check potentially overlapped processor-specific
1078 // program header type.
1080 case ELF::EM_AMDGPU:
1082 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM);
1083 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT);
1084 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT);
1085 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT);
1089 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
1092 case ELF::EM_MIPS_RS3_LE:
1094 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
1095 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
1096 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
1097 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS);
1102 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
1103 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
1104 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
1105 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
1106 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
1107 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
1108 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
1109 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
1111 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
1112 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
1114 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
1115 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
1117 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE);
1118 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED);
1119 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA);
1125 static std::string getElfPtType(unsigned Arch, unsigned Type) {
1127 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL)
1128 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD)
1129 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC)
1130 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP)
1131 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE)
1132 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB)
1133 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR)
1134 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS)
1135 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME)
1136 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND)
1137 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK)
1138 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO)
1140 // All machine specific PT_* types
1142 case ELF::EM_AMDGPU:
1144 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM);
1145 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT);
1146 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT);
1147 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT);
1151 if (Type == ELF::PT_ARM_EXIDX)
1155 case ELF::EM_MIPS_RS3_LE:
1157 case PT_MIPS_REGINFO:
1159 case PT_MIPS_RTPROC:
1161 case PT_MIPS_OPTIONS:
1163 case PT_MIPS_ABIFLAGS:
1169 return std::string("<unknown>: ") + to_string(format_hex(Type, 1));
1172 static const EnumEntry<unsigned> ElfSegmentFlags[] = {
1173 LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
1174 LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
1175 LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
1178 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
1179 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER),
1180 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC),
1181 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC),
1182 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2),
1183 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE),
1184 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64),
1185 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008),
1186 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32),
1187 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64),
1188 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32),
1189 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64),
1190 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900),
1191 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010),
1192 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100),
1193 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650),
1194 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120),
1195 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111),
1196 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1),
1197 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON),
1198 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR),
1199 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2),
1200 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3),
1201 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400),
1202 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900),
1203 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500),
1204 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000),
1205 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E),
1206 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F),
1207 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A),
1208 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS),
1209 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16),
1210 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX),
1211 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1),
1212 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2),
1213 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3),
1214 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4),
1215 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5),
1216 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32),
1217 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64),
1218 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2),
1219 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2),
1220 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6),
1221 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6)
1224 static const EnumEntry<unsigned> ElfSymOtherFlags[] = {
1225 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL),
1226 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN),
1227 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED)
1230 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = {
1231 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1232 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1233 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC),
1234 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS)
1237 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = {
1238 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1239 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1240 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16)
1243 static const char *getElfMipsOptionsOdkType(unsigned Odk) {
1245 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL);
1246 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO);
1247 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS);
1248 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD);
1249 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH);
1250 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL);
1251 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS);
1252 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND);
1253 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR);
1254 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP);
1255 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT);
1256 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE);
1262 template <typename ELFT>
1263 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer)
1264 : ObjDumper(Writer), Obj(Obj) {
1266 SmallVector<const Elf_Phdr *, 4> LoadSegments;
1267 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
1268 if (Phdr.p_type == ELF::PT_DYNAMIC) {
1269 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn));
1272 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0)
1274 LoadSegments.push_back(&Phdr);
1277 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
1278 switch (Sec.sh_type) {
1279 case ELF::SHT_SYMTAB:
1280 if (DotSymtabSec != nullptr)
1281 reportError("Multilpe SHT_SYMTAB");
1282 DotSymtabSec = &Sec;
1284 case ELF::SHT_DYNSYM:
1285 if (DynSymRegion.Size)
1286 reportError("Multilpe SHT_DYNSYM");
1287 DynSymRegion = createDRIFrom(&Sec);
1288 // This is only used (if Elf_Shdr present)for naming section in GNU style
1289 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec));
1291 case ELF::SHT_SYMTAB_SHNDX:
1292 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec));
1294 case ELF::SHT_GNU_versym:
1295 if (dot_gnu_version_sec != nullptr)
1296 reportError("Multiple SHT_GNU_versym");
1297 dot_gnu_version_sec = &Sec;
1299 case ELF::SHT_GNU_verdef:
1300 if (dot_gnu_version_d_sec != nullptr)
1301 reportError("Multiple SHT_GNU_verdef");
1302 dot_gnu_version_d_sec = &Sec;
1304 case ELF::SHT_GNU_verneed:
1305 if (dot_gnu_version_r_sec != nullptr)
1306 reportError("Multilpe SHT_GNU_verneed");
1307 dot_gnu_version_r_sec = &Sec;
1312 parseDynamicTable(LoadSegments);
1314 if (opts::Output == opts::GNU)
1315 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this));
1317 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this));
1320 template <typename ELFT>
1321 void ELFDumper<ELFT>::parseDynamicTable(
1322 ArrayRef<const Elf_Phdr *> LoadSegments) {
1323 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * {
1324 const Elf_Phdr *const *I = std::upper_bound(
1325 LoadSegments.begin(), LoadSegments.end(), VAddr, compareAddr<ELFT>);
1326 if (I == LoadSegments.begin())
1327 report_fatal_error("Virtual address is not in any segment");
1329 const Elf_Phdr &Phdr = **I;
1330 uint64_t Delta = VAddr - Phdr.p_vaddr;
1331 if (Delta >= Phdr.p_filesz)
1332 report_fatal_error("Virtual address is not in any segment");
1333 return Obj->base() + Phdr.p_offset + Delta;
1336 uint64_t SONameOffset = 0;
1337 const char *StringTableBegin = nullptr;
1338 uint64_t StringTableSize = 0;
1339 for (const Elf_Dyn &Dyn : dynamic_table()) {
1340 switch (Dyn.d_tag) {
1343 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr()));
1345 case ELF::DT_GNU_HASH:
1347 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr()));
1349 case ELF::DT_STRTAB:
1350 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr());
1353 StringTableSize = Dyn.getVal();
1355 case ELF::DT_SYMTAB:
1356 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr());
1357 DynSymRegion.EntSize = sizeof(Elf_Sym);
1360 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr());
1362 case ELF::DT_RELASZ:
1363 DynRelaRegion.Size = Dyn.getVal();
1365 case ELF::DT_RELAENT:
1366 DynRelaRegion.EntSize = Dyn.getVal();
1368 case ELF::DT_SONAME:
1369 SONameOffset = Dyn.getVal();
1372 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1375 DynRelRegion.Size = Dyn.getVal();
1377 case ELF::DT_RELENT:
1378 DynRelRegion.EntSize = Dyn.getVal();
1380 case ELF::DT_PLTREL:
1381 if (Dyn.getVal() == DT_REL)
1382 DynPLTRelRegion.EntSize = sizeof(Elf_Rel);
1383 else if (Dyn.getVal() == DT_RELA)
1384 DynPLTRelRegion.EntSize = sizeof(Elf_Rela);
1386 reportError(Twine("unknown DT_PLTREL value of ") +
1387 Twine((uint64_t)Dyn.getVal()));
1389 case ELF::DT_JMPREL:
1390 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr());
1392 case ELF::DT_PLTRELSZ:
1393 DynPLTRelRegion.Size = Dyn.getVal();
1397 if (StringTableBegin)
1398 DynamicStringTable = StringRef(StringTableBegin, StringTableSize);
1400 SOName = getDynamicString(SONameOffset);
1403 template <typename ELFT>
1404 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const {
1405 return DynRelRegion.getAsArrayRef<Elf_Rel>();
1408 template <typename ELFT>
1409 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const {
1410 return DynRelaRegion.getAsArrayRef<Elf_Rela>();
1413 template<class ELFT>
1414 void ELFDumper<ELFT>::printFileHeaders() {
1415 ELFDumperStyle->printFileHeaders(Obj);
1418 template<class ELFT>
1419 void ELFDumper<ELFT>::printSections() {
1420 ELFDumperStyle->printSections(Obj);
1423 template<class ELFT>
1424 void ELFDumper<ELFT>::printRelocations() {
1425 ELFDumperStyle->printRelocations(Obj);
1428 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() {
1429 ELFDumperStyle->printProgramHeaders(Obj);
1432 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() {
1433 ELFDumperStyle->printDynamicRelocations(Obj);
1436 template<class ELFT>
1437 void ELFDumper<ELFT>::printSymbols() {
1438 ELFDumperStyle->printSymbols(Obj);
1441 template<class ELFT>
1442 void ELFDumper<ELFT>::printDynamicSymbols() {
1443 ELFDumperStyle->printDynamicSymbols(Obj);
1446 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() {
1447 ELFDumperStyle->printHashHistogram(Obj);
1450 template <class ELFT> void ELFDumper<ELFT>::printNotes() {
1451 ELFDumperStyle->printNotes(Obj);
1454 #define LLVM_READOBJ_TYPE_CASE(name) \
1455 case DT_##name: return #name
1457 static const char *getTypeString(unsigned Arch, uint64_t Type) {
1461 LLVM_READOBJ_TYPE_CASE(HEXAGON_SYMSZ);
1462 LLVM_READOBJ_TYPE_CASE(HEXAGON_VER);
1463 LLVM_READOBJ_TYPE_CASE(HEXAGON_PLT);
1467 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL);
1468 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION);
1469 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS);
1470 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS);
1471 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO);
1472 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO);
1473 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO);
1474 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM);
1475 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP);
1476 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT);
1477 LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS);
1481 LLVM_READOBJ_TYPE_CASE(BIND_NOW);
1482 LLVM_READOBJ_TYPE_CASE(DEBUG);
1483 LLVM_READOBJ_TYPE_CASE(FINI);
1484 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
1485 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
1486 LLVM_READOBJ_TYPE_CASE(FLAGS);
1487 LLVM_READOBJ_TYPE_CASE(FLAGS_1);
1488 LLVM_READOBJ_TYPE_CASE(HASH);
1489 LLVM_READOBJ_TYPE_CASE(INIT);
1490 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
1491 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
1492 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
1493 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
1494 LLVM_READOBJ_TYPE_CASE(JMPREL);
1495 LLVM_READOBJ_TYPE_CASE(NEEDED);
1496 LLVM_READOBJ_TYPE_CASE(NULL);
1497 LLVM_READOBJ_TYPE_CASE(PLTGOT);
1498 LLVM_READOBJ_TYPE_CASE(PLTREL);
1499 LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
1500 LLVM_READOBJ_TYPE_CASE(REL);
1501 LLVM_READOBJ_TYPE_CASE(RELA);
1502 LLVM_READOBJ_TYPE_CASE(RELENT);
1503 LLVM_READOBJ_TYPE_CASE(RELSZ);
1504 LLVM_READOBJ_TYPE_CASE(RELAENT);
1505 LLVM_READOBJ_TYPE_CASE(RELASZ);
1506 LLVM_READOBJ_TYPE_CASE(RPATH);
1507 LLVM_READOBJ_TYPE_CASE(RUNPATH);
1508 LLVM_READOBJ_TYPE_CASE(SONAME);
1509 LLVM_READOBJ_TYPE_CASE(STRSZ);
1510 LLVM_READOBJ_TYPE_CASE(STRTAB);
1511 LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
1512 LLVM_READOBJ_TYPE_CASE(SYMENT);
1513 LLVM_READOBJ_TYPE_CASE(SYMTAB);
1514 LLVM_READOBJ_TYPE_CASE(TEXTREL);
1515 LLVM_READOBJ_TYPE_CASE(VERDEF);
1516 LLVM_READOBJ_TYPE_CASE(VERDEFNUM);
1517 LLVM_READOBJ_TYPE_CASE(VERNEED);
1518 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM);
1519 LLVM_READOBJ_TYPE_CASE(VERSYM);
1520 LLVM_READOBJ_TYPE_CASE(RELACOUNT);
1521 LLVM_READOBJ_TYPE_CASE(RELCOUNT);
1522 LLVM_READOBJ_TYPE_CASE(GNU_HASH);
1523 LLVM_READOBJ_TYPE_CASE(TLSDESC_PLT);
1524 LLVM_READOBJ_TYPE_CASE(TLSDESC_GOT);
1525 LLVM_READOBJ_TYPE_CASE(AUXILIARY);
1526 default: return "unknown";
1530 #undef LLVM_READOBJ_TYPE_CASE
1532 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
1533 { #enum, prefix##_##enum }
1535 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
1536 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
1537 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
1538 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
1539 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
1540 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
1543 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
1544 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW),
1545 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL),
1546 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP),
1547 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE),
1548 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR),
1549 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST),
1550 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN),
1551 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN),
1552 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT),
1553 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS),
1554 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE),
1555 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB),
1556 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP),
1557 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT),
1558 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE),
1559 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE),
1560 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT),
1561 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF),
1562 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS),
1563 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR),
1564 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED),
1565 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
1566 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
1567 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
1568 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
1571 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
1572 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
1573 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
1574 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
1575 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
1576 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
1577 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
1578 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
1579 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
1580 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
1581 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
1582 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
1583 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
1584 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
1585 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
1586 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
1587 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
1590 #undef LLVM_READOBJ_DT_FLAG_ENT
1592 template <typename T, typename TFlag>
1593 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
1594 typedef EnumEntry<TFlag> FlagEntry;
1595 typedef SmallVector<FlagEntry, 10> FlagVector;
1596 FlagVector SetFlags;
1598 for (const auto &Flag : Flags) {
1599 if (Flag.Value == 0)
1602 if ((Value & Flag.Value) == Flag.Value)
1603 SetFlags.push_back(Flag);
1606 for (const auto &Flag : SetFlags) {
1607 OS << Flag.Name << " ";
1611 template <class ELFT>
1612 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const {
1613 if (Value >= DynamicStringTable.size())
1614 reportError("Invalid dynamic string table reference");
1615 return StringRef(DynamicStringTable.data() + Value);
1618 template <class ELFT>
1619 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) {
1620 raw_ostream &OS = W.getOStream();
1621 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64;
1624 if (Value == DT_REL) {
1627 } else if (Value == DT_RELA) {
1643 case DT_PREINIT_ARRAY:
1650 case DT_MIPS_BASE_ADDRESS:
1651 case DT_MIPS_GOTSYM:
1652 case DT_MIPS_RLD_MAP:
1653 case DT_MIPS_RLD_MAP_REL:
1654 case DT_MIPS_PLTGOT:
1655 case DT_MIPS_OPTIONS:
1656 OS << format(ConvChar, Value);
1662 case DT_MIPS_RLD_VERSION:
1663 case DT_MIPS_LOCAL_GOTNO:
1664 case DT_MIPS_SYMTABNO:
1665 case DT_MIPS_UNREFEXTNO:
1675 case DT_INIT_ARRAYSZ:
1676 case DT_FINI_ARRAYSZ:
1677 case DT_PREINIT_ARRAYSZ:
1678 OS << Value << " (bytes)";
1681 OS << "SharedLibrary (" << getDynamicString(Value) << ")";
1684 OS << "LibrarySoname (" << getDynamicString(Value) << ")";
1687 OS << "Auxiliary library: [" << getDynamicString(Value) << "]";
1691 OS << getDynamicString(Value);
1694 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
1697 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
1700 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS);
1703 OS << format(ConvChar, Value);
1708 template<class ELFT>
1709 void ELFDumper<ELFT>::printUnwindInfo() {
1710 W.startLine() << "UnwindInfo not implemented.\n";
1714 template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() {
1715 const unsigned Machine = Obj->getHeader()->e_machine;
1716 if (Machine == EM_ARM) {
1717 ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx(
1718 W, Obj, DotSymtabSec);
1719 return Ctx.PrintUnwindInformation();
1721 W.startLine() << "UnwindInfo not implemented.\n";
1725 template<class ELFT>
1726 void ELFDumper<ELFT>::printDynamicTable() {
1727 auto I = dynamic_table().begin();
1728 auto E = dynamic_table().end();
1734 while (I != E && E->getTag() == ELF::DT_NULL)
1736 if (E->getTag() != ELF::DT_NULL)
1740 ptrdiff_t Total = std::distance(I, E);
1744 raw_ostream &OS = W.getOStream();
1745 W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
1747 bool Is64 = ELFT::Is64Bits;
1750 << " Tag" << (Is64 ? " " : " ") << "Type"
1751 << " " << "Name/Value\n";
1753 const Elf_Dyn &Entry = *I;
1754 uintX_t Tag = Entry.getTag();
1756 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " "
1757 << format("%-21s", getTypeString(Obj->getHeader()->e_machine, Tag));
1758 printValue(Tag, Entry.getVal());
1762 W.startLine() << "]\n";
1765 template<class ELFT>
1766 void ELFDumper<ELFT>::printNeededLibraries() {
1767 ListScope D(W, "NeededLibraries");
1769 typedef std::vector<StringRef> LibsTy;
1772 for (const auto &Entry : dynamic_table())
1773 if (Entry.d_tag == ELF::DT_NEEDED)
1774 Libs.push_back(getDynamicString(Entry.d_un.d_val));
1776 std::stable_sort(Libs.begin(), Libs.end());
1778 for (const auto &L : Libs) {
1779 outs() << " " << L << "\n";
1784 template <typename ELFT>
1785 void ELFDumper<ELFT>::printHashTable() {
1786 DictScope D(W, "HashTable");
1789 W.printNumber("Num Buckets", HashTable->nbucket);
1790 W.printNumber("Num Chains", HashTable->nchain);
1791 W.printList("Buckets", HashTable->buckets());
1792 W.printList("Chains", HashTable->chains());
1795 template <typename ELFT>
1796 void ELFDumper<ELFT>::printGnuHashTable() {
1797 DictScope D(W, "GnuHashTable");
1800 W.printNumber("Num Buckets", GnuHashTable->nbuckets);
1801 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx);
1802 W.printNumber("Num Mask Words", GnuHashTable->maskwords);
1803 W.printNumber("Shift Count", GnuHashTable->shift2);
1804 W.printHexList("Bloom Filter", GnuHashTable->filter());
1805 W.printList("Buckets", GnuHashTable->buckets());
1806 Elf_Sym_Range Syms = dynamic_symbols();
1807 unsigned NumSyms = std::distance(Syms.begin(), Syms.end());
1809 reportError("No dynamic symbol section");
1810 W.printHexList("Values", GnuHashTable->values(NumSyms));
1813 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() {
1814 outs() << "LoadName: " << SOName << '\n';
1817 template <class ELFT>
1818 void ELFDumper<ELFT>::printAttributes() {
1819 W.startLine() << "Attributes not implemented.\n";
1823 template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() {
1824 if (Obj->getHeader()->e_machine != EM_ARM) {
1825 W.startLine() << "Attributes not implemented.\n";
1829 DictScope BA(W, "BuildAttributes");
1830 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
1831 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES)
1834 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec));
1835 if (Contents[0] != ARMBuildAttrs::Format_Version) {
1836 errs() << "unrecognised FormatVersion: 0x" << utohexstr(Contents[0])
1841 W.printHex("FormatVersion", Contents[0]);
1842 if (Contents.size() == 1)
1845 ARMAttributeParser(&W).Parse(Contents, true);
1851 template <class ELFT> class MipsGOTParser {
1853 TYPEDEF_ELF_TYPES(ELFT)
1854 typedef typename ELFO::Elf_Addr GOTEntry;
1855 MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1856 Elf_Dyn_Range DynTable, ScopedPrinter &W);
1862 ELFDumper<ELFT> *Dumper;
1865 llvm::Optional<uint64_t> DtPltGot;
1866 llvm::Optional<uint64_t> DtLocalGotNum;
1867 llvm::Optional<uint64_t> DtGotSym;
1868 llvm::Optional<uint64_t> DtMipsPltGot;
1869 llvm::Optional<uint64_t> DtJmpRel;
1871 std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const;
1872 const GOTEntry *makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum);
1874 void printGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1875 const GOTEntry *It);
1876 void printGlobalGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1877 const GOTEntry *It, const Elf_Sym *Sym,
1878 StringRef StrTable, bool IsDynamic);
1879 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1880 const GOTEntry *It, StringRef Purpose);
1881 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1882 const GOTEntry *It, StringRef StrTable,
1883 const Elf_Sym *Sym);
1887 template <class ELFT>
1888 MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1889 Elf_Dyn_Range DynTable, ScopedPrinter &W)
1890 : Dumper(Dumper), Obj(Obj), W(W) {
1891 for (const auto &Entry : DynTable) {
1892 switch (Entry.getTag()) {
1893 case ELF::DT_PLTGOT:
1894 DtPltGot = Entry.getVal();
1896 case ELF::DT_MIPS_LOCAL_GOTNO:
1897 DtLocalGotNum = Entry.getVal();
1899 case ELF::DT_MIPS_GOTSYM:
1900 DtGotSym = Entry.getVal();
1902 case ELF::DT_MIPS_PLTGOT:
1903 DtMipsPltGot = Entry.getVal();
1905 case ELF::DT_JMPREL:
1906 DtJmpRel = Entry.getVal();
1912 template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() {
1913 // See "Global Offset Table" in Chapter 5 in the following document
1914 // for detailed GOT description.
1915 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
1917 W.startLine() << "Cannot find PLTGOT dynamic table tag.\n";
1920 if (!DtLocalGotNum) {
1921 W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n";
1925 W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n";
1929 StringRef StrTable = Dumper->getDynamicStringTable();
1930 const Elf_Sym *DynSymBegin = Dumper->dynamic_symbols().begin();
1931 const Elf_Sym *DynSymEnd = Dumper->dynamic_symbols().end();
1932 std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd));
1934 if (*DtGotSym > DynSymTotal)
1935 report_fatal_error("MIPS_GOTSYM exceeds a number of dynamic symbols");
1937 std::size_t GlobalGotNum = DynSymTotal - *DtGotSym;
1939 if (*DtLocalGotNum + GlobalGotNum == 0) {
1940 W.startLine() << "GOT is empty.\n";
1944 const Elf_Shdr *GOTShdr = findNotEmptySectionByAddress(Obj, *DtPltGot);
1946 report_fatal_error("There is no not empty GOT section at 0x" +
1947 Twine::utohexstr(*DtPltGot));
1949 ArrayRef<uint8_t> GOT = unwrapOrError(Obj->getSectionContents(GOTShdr));
1951 if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(GOT))
1952 report_fatal_error("Number of GOT entries exceeds the size of GOT section");
1954 const GOTEntry *GotBegin = makeGOTIter(GOT, 0);
1955 const GOTEntry *GotLocalEnd = makeGOTIter(GOT, *DtLocalGotNum);
1956 const GOTEntry *It = GotBegin;
1958 DictScope GS(W, "Primary GOT");
1960 W.printHex("Canonical gp value", GOTShdr->sh_addr + 0x7ff0);
1962 ListScope RS(W, "Reserved entries");
1965 DictScope D(W, "Entry");
1966 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
1967 W.printString("Purpose", StringRef("Lazy resolver"));
1970 if (It != GotLocalEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) {
1971 DictScope D(W, "Entry");
1972 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
1973 W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
1977 ListScope LS(W, "Local entries");
1978 for (; It != GotLocalEnd; ++It) {
1979 DictScope D(W, "Entry");
1980 printGotEntry(GOTShdr->sh_addr, GotBegin, It);
1984 ListScope GS(W, "Global entries");
1986 const GOTEntry *GotGlobalEnd =
1987 makeGOTIter(GOT, *DtLocalGotNum + GlobalGotNum);
1988 const Elf_Sym *GotDynSym = DynSymBegin + *DtGotSym;
1989 for (; It != GotGlobalEnd; ++It) {
1990 DictScope D(W, "Entry");
1991 printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++, StrTable,
1996 std::size_t SpecGotNum = getGOTTotal(GOT) - *DtLocalGotNum - GlobalGotNum;
1997 W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum));
2000 template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() {
2001 if (!DtMipsPltGot) {
2002 W.startLine() << "Cannot find MIPS_PLTGOT dynamic table tag.\n";
2006 W.startLine() << "Cannot find JMPREL dynamic table tag.\n";
2010 const Elf_Shdr *PLTShdr = findNotEmptySectionByAddress(Obj, *DtMipsPltGot);
2012 report_fatal_error("There is no not empty PLTGOT section at 0x " +
2013 Twine::utohexstr(*DtMipsPltGot));
2014 ArrayRef<uint8_t> PLT = unwrapOrError(Obj->getSectionContents(PLTShdr));
2016 const Elf_Shdr *PLTRelShdr = findNotEmptySectionByAddress(Obj, *DtJmpRel);
2018 report_fatal_error("There is no not empty RELPLT section at 0x" +
2019 Twine::utohexstr(*DtJmpRel));
2020 const Elf_Shdr *SymTable =
2021 unwrapOrError(Obj->getSection(PLTRelShdr->sh_link));
2022 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTable));
2024 const GOTEntry *PLTBegin = makeGOTIter(PLT, 0);
2025 const GOTEntry *PLTEnd = makeGOTIter(PLT, getGOTTotal(PLT));
2026 const GOTEntry *It = PLTBegin;
2028 DictScope GS(W, "PLT GOT");
2030 ListScope RS(W, "Reserved entries");
2031 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "PLT lazy resolver");
2033 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "Module pointer");
2036 ListScope GS(W, "Entries");
2038 switch (PLTRelShdr->sh_type) {
2040 for (const Elf_Rel &Rel : unwrapOrError(Obj->rels(PLTRelShdr))) {
2041 const Elf_Sym *Sym =
2042 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable));
2043 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym);
2049 for (const Elf_Rela &Rel : unwrapOrError(Obj->relas(PLTRelShdr))) {
2050 const Elf_Sym *Sym =
2051 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable));
2052 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym);
2061 template <class ELFT>
2062 std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const {
2063 return GOT.size() / sizeof(GOTEntry);
2066 template <class ELFT>
2067 const typename MipsGOTParser<ELFT>::GOTEntry *
2068 MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) {
2069 const char *Data = reinterpret_cast<const char *>(GOT.data());
2070 return reinterpret_cast<const GOTEntry *>(Data + EntryNum * sizeof(GOTEntry));
2073 template <class ELFT>
2074 void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr,
2075 const GOTEntry *BeginIt,
2076 const GOTEntry *It) {
2077 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2078 W.printHex("Address", GotAddr + Offset);
2079 W.printNumber("Access", Offset - 0x7ff0);
2080 W.printHex("Initial", *It);
2083 template <class ELFT>
2084 void MipsGOTParser<ELFT>::printGlobalGotEntry(
2085 uint64_t GotAddr, const GOTEntry *BeginIt, const GOTEntry *It,
2086 const Elf_Sym *Sym, StringRef StrTable, bool IsDynamic) {
2087 printGotEntry(GotAddr, BeginIt, It);
2089 W.printHex("Value", Sym->st_value);
2090 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
2092 unsigned SectionIndex = 0;
2093 StringRef SectionName;
2094 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(),
2095 Dumper->getShndxTable(), SectionName, SectionIndex);
2096 W.printHex("Section", SectionName, SectionIndex);
2098 std::string FullSymbolName =
2099 Dumper->getFullSymbolName(Sym, StrTable, IsDynamic);
2100 W.printNumber("Name", FullSymbolName, Sym->st_name);
2103 template <class ELFT>
2104 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
2105 const GOTEntry *BeginIt,
2106 const GOTEntry *It, StringRef Purpose) {
2107 DictScope D(W, "Entry");
2108 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2109 W.printHex("Address", PLTAddr + Offset);
2110 W.printHex("Initial", *It);
2111 W.printString("Purpose", Purpose);
2114 template <class ELFT>
2115 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
2116 const GOTEntry *BeginIt,
2117 const GOTEntry *It, StringRef StrTable,
2118 const Elf_Sym *Sym) {
2119 DictScope D(W, "Entry");
2120 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
2121 W.printHex("Address", PLTAddr + Offset);
2122 W.printHex("Initial", *It);
2123 W.printHex("Value", Sym->st_value);
2124 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
2126 unsigned SectionIndex = 0;
2127 StringRef SectionName;
2128 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(),
2129 Dumper->getShndxTable(), SectionName, SectionIndex);
2130 W.printHex("Section", SectionName, SectionIndex);
2132 std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true);
2133 W.printNumber("Name", FullSymbolName, Sym->st_name);
2136 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
2137 if (Obj->getHeader()->e_machine != EM_MIPS) {
2138 W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n";
2142 MipsGOTParser<ELFT> GOTParser(this, Obj, dynamic_table(), W);
2143 GOTParser.parseGOT();
2144 GOTParser.parsePLT();
2147 static const EnumEntry<unsigned> ElfMipsISAExtType[] = {
2148 {"None", Mips::AFL_EXT_NONE},
2149 {"Broadcom SB-1", Mips::AFL_EXT_SB1},
2150 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON},
2151 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2},
2152 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP},
2153 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3},
2154 {"LSI R4010", Mips::AFL_EXT_4010},
2155 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E},
2156 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F},
2157 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A},
2158 {"MIPS R4650", Mips::AFL_EXT_4650},
2159 {"MIPS R5900", Mips::AFL_EXT_5900},
2160 {"MIPS R10000", Mips::AFL_EXT_10000},
2161 {"NEC VR4100", Mips::AFL_EXT_4100},
2162 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111},
2163 {"NEC VR4120", Mips::AFL_EXT_4120},
2164 {"NEC VR5400", Mips::AFL_EXT_5400},
2165 {"NEC VR5500", Mips::AFL_EXT_5500},
2166 {"RMI Xlr", Mips::AFL_EXT_XLR},
2167 {"Toshiba R3900", Mips::AFL_EXT_3900}
2170 static const EnumEntry<unsigned> ElfMipsASEFlags[] = {
2171 {"DSP", Mips::AFL_ASE_DSP},
2172 {"DSPR2", Mips::AFL_ASE_DSPR2},
2173 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA},
2174 {"MCU", Mips::AFL_ASE_MCU},
2175 {"MDMX", Mips::AFL_ASE_MDMX},
2176 {"MIPS-3D", Mips::AFL_ASE_MIPS3D},
2177 {"MT", Mips::AFL_ASE_MT},
2178 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS},
2179 {"VZ", Mips::AFL_ASE_VIRT},
2180 {"MSA", Mips::AFL_ASE_MSA},
2181 {"MIPS16", Mips::AFL_ASE_MIPS16},
2182 {"microMIPS", Mips::AFL_ASE_MICROMIPS},
2183 {"XPA", Mips::AFL_ASE_XPA}
2186 static const EnumEntry<unsigned> ElfMipsFpABIType[] = {
2187 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY},
2188 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE},
2189 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE},
2190 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT},
2191 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)",
2192 Mips::Val_GNU_MIPS_ABI_FP_OLD_64},
2193 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX},
2194 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64},
2195 {"Hard float compat (32-bit CPU, 64-bit FPU)",
2196 Mips::Val_GNU_MIPS_ABI_FP_64A}
2199 static const EnumEntry<unsigned> ElfMipsFlags1[] {
2200 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG},
2203 static int getMipsRegisterSize(uint8_t Flag) {
2205 case Mips::AFL_REG_NONE:
2207 case Mips::AFL_REG_32:
2209 case Mips::AFL_REG_64:
2211 case Mips::AFL_REG_128:
2218 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() {
2219 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags");
2221 W.startLine() << "There is no .MIPS.abiflags section in the file.\n";
2224 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2225 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) {
2226 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n";
2230 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data());
2232 raw_ostream &OS = W.getOStream();
2233 DictScope GS(W, "MIPS ABI Flags");
2235 W.printNumber("Version", Flags->version);
2236 W.startLine() << "ISA: ";
2237 if (Flags->isa_rev <= 1)
2238 OS << format("MIPS%u", Flags->isa_level);
2240 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev);
2242 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType));
2243 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags));
2244 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType));
2245 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size));
2246 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size));
2247 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size));
2248 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1));
2249 W.printHex("Flags 2", Flags->flags2);
2252 template <class ELFT>
2253 static void printMipsReginfoData(ScopedPrinter &W,
2254 const Elf_Mips_RegInfo<ELFT> &Reginfo) {
2255 W.printHex("GP", Reginfo.ri_gp_value);
2256 W.printHex("General Mask", Reginfo.ri_gprmask);
2257 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]);
2258 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]);
2259 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]);
2260 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]);
2263 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() {
2264 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo");
2266 W.startLine() << "There is no .reginfo section in the file.\n";
2269 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2270 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) {
2271 W.startLine() << "The .reginfo section has a wrong size.\n";
2275 DictScope GS(W, "MIPS RegInfo");
2276 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data());
2277 printMipsReginfoData(W, *Reginfo);
2280 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() {
2281 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options");
2283 W.startLine() << "There is no .MIPS.options section in the file.\n";
2287 DictScope GS(W, "MIPS Options");
2289 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2290 while (!Sec.empty()) {
2291 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) {
2292 W.startLine() << "The .MIPS.options section has a wrong size.\n";
2295 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data());
2296 DictScope GS(W, getElfMipsOptionsOdkType(O->kind));
2299 printMipsReginfoData(W, O->getRegInfo());
2302 W.startLine() << "Unsupported MIPS options tag.\n";
2305 Sec = Sec.slice(O->size);
2309 template <class ELFT> void ELFDumper<ELFT>::printAMDGPUCodeObjectMetadata() {
2310 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".note");
2312 W.startLine() << "There is no .note section in the file.\n";
2315 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2317 const uint32_t CodeObjectMetadataNoteType = 10;
2318 for (auto I = reinterpret_cast<const Elf_Word *>(&Sec[0]),
2319 E = I + Sec.size()/4; I != E;) {
2320 uint32_t NameSZ = I[0];
2321 uint32_t DescSZ = I[1];
2322 uint32_t Type = I[2];
2327 Name = StringRef(reinterpret_cast<const char *>(I), NameSZ - 1);
2328 I += alignTo<4>(NameSZ)/4;
2331 if (Name == "AMD" && Type == CodeObjectMetadataNoteType) {
2332 StringRef Desc(reinterpret_cast<const char *>(I), DescSZ);
2333 W.printString(Desc);
2335 I += alignTo<4>(DescSZ)/4;
2339 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const {
2340 const Elf_Shdr *StackMapSection = nullptr;
2341 for (const auto &Sec : unwrapOrError(Obj->sections())) {
2342 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2343 if (Name == ".llvm_stackmaps") {
2344 StackMapSection = &Sec;
2349 if (!StackMapSection)
2352 StringRef StackMapContents;
2353 ArrayRef<uint8_t> StackMapContentsArray =
2354 unwrapOrError(Obj->getSectionContents(StackMapSection));
2356 prettyPrintStackMap(llvm::outs(), StackMapV2Parser<ELFT::TargetEndianness>(
2357 StackMapContentsArray));
2360 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() {
2361 ELFDumperStyle->printGroupSections(Obj);
2364 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1,
2368 OS.PadToColumn(37u);
2373 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
2374 const Elf_Ehdr *e = Obj->getHeader();
2375 OS << "ELF Header:\n";
2378 for (int i = 0; i < ELF::EI_NIDENT; i++)
2379 OS << format(" %02x", static_cast<int>(e->e_ident[i]));
2381 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
2382 printFields(OS, "Class:", Str);
2383 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding));
2384 printFields(OS, "Data:", Str);
2387 OS.PadToColumn(37u);
2388 OS << to_hexString(e->e_ident[ELF::EI_VERSION]);
2389 if (e->e_version == ELF::EV_CURRENT)
2392 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI));
2393 printFields(OS, "OS/ABI:", Str);
2394 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]);
2395 printFields(OS, "ABI Version:", Str);
2396 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType));
2397 printFields(OS, "Type:", Str);
2398 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType));
2399 printFields(OS, "Machine:", Str);
2400 Str = "0x" + to_hexString(e->e_version);
2401 printFields(OS, "Version:", Str);
2402 Str = "0x" + to_hexString(e->e_entry);
2403 printFields(OS, "Entry point address:", Str);
2404 Str = to_string(e->e_phoff) + " (bytes into file)";
2405 printFields(OS, "Start of program headers:", Str);
2406 Str = to_string(e->e_shoff) + " (bytes into file)";
2407 printFields(OS, "Start of section headers:", Str);
2408 Str = "0x" + to_hexString(e->e_flags);
2409 printFields(OS, "Flags:", Str);
2410 Str = to_string(e->e_ehsize) + " (bytes)";
2411 printFields(OS, "Size of this header:", Str);
2412 Str = to_string(e->e_phentsize) + " (bytes)";
2413 printFields(OS, "Size of program headers:", Str);
2414 Str = to_string(e->e_phnum);
2415 printFields(OS, "Number of program headers:", Str);
2416 Str = to_string(e->e_shentsize) + " (bytes)";
2417 printFields(OS, "Size of section headers:", Str);
2418 Str = to_string(e->e_shnum);
2419 printFields(OS, "Number of section headers:", Str);
2420 Str = to_string(e->e_shstrndx);
2421 printFields(OS, "Section header string table index:", Str);
2424 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) {
2425 uint32_t SectionIndex = 0;
2426 bool HasGroups = false;
2427 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2428 if (Sec.sh_type == ELF::SHT_GROUP) {
2430 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
2431 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
2432 const Elf_Sym *Signature =
2433 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info));
2434 ArrayRef<Elf_Word> Data = unwrapOrError(
2435 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
2436 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2437 OS << "\n" << getGroupType(Data[0]) << " group section ["
2438 << format_decimal(SectionIndex, 5) << "] `" << Name << "' ["
2439 << StrTable.data() + Signature->st_name << "] contains "
2440 << (Data.size() - 1) << " sections:\n"
2441 << " [Index] Name\n";
2442 for (auto &Ndx : Data.slice(1)) {
2443 auto Sec = unwrapOrError(Obj->getSection(Ndx));
2444 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
2445 OS << " [" << format_decimal(Ndx, 5) << "] " << Name
2452 OS << "There are no section groups in this file.\n";
2455 template <class ELFT>
2456 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
2457 const Elf_Rela &R, bool IsRela) {
2458 std::string Offset, Info, Addend = "", Value;
2459 SmallString<32> RelocName;
2460 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
2461 StringRef TargetName;
2462 const Elf_Sym *Sym = nullptr;
2463 unsigned Width = ELFT::Is64Bits ? 16 : 8;
2464 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2466 // First two fields are bit width dependent. The rest of them are after are
2468 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
2469 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
2470 Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab));
2471 if (Sym && Sym->getType() == ELF::STT_SECTION) {
2472 const Elf_Shdr *Sec = unwrapOrError(
2473 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
2474 TargetName = unwrapOrError(Obj->getSectionName(Sec));
2476 TargetName = unwrapOrError(Sym->getName(StrTable));
2479 if (Sym && IsRela) {
2486 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
2487 Info = to_string(format_hex_no_prefix(R.r_info, Width));
2489 int64_t RelAddend = R.r_addend;
2491 Addend += to_hexString(std::abs(RelAddend), false);
2494 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
2496 Fields[0].Str = Offset;
2497 Fields[1].Str = Info;
2498 Fields[2].Str = RelocName;
2499 Fields[3].Str = Value;
2500 Fields[4].Str = TargetName;
2501 for (auto &field : Fields)
2507 static inline void printRelocHeader(raw_ostream &OS, bool Is64, bool IsRela) {
2509 OS << " Offset Info Type"
2510 << " Symbol's Value Symbol's Name";
2512 OS << " Offset Info Type Sym. Value "
2515 OS << (IsRela ? " + Addend" : "");
2519 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) {
2520 bool HasRelocSections = false;
2521 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2522 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA)
2524 HasRelocSections = true;
2525 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2526 unsigned Entries = Sec.getEntityCount();
2527 uintX_t Offset = Sec.sh_offset;
2528 OS << "\nRelocation section '" << Name << "' at offset 0x"
2529 << to_hexString(Offset, false) << " contains " << Entries
2531 printRelocHeader(OS, ELFT::Is64Bits, (Sec.sh_type == ELF::SHT_RELA));
2532 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link));
2533 if (Sec.sh_type == ELF::SHT_REL) {
2534 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) {
2536 Rela.r_offset = R.r_offset;
2537 Rela.r_info = R.r_info;
2539 printRelocation(Obj, SymTab, Rela, false);
2542 for (const auto &R : unwrapOrError(Obj->relas(&Sec)))
2543 printRelocation(Obj, SymTab, R, true);
2546 if (!HasRelocSections)
2547 OS << "\nThere are no relocations in this file.\n";
2550 std::string getSectionTypeString(unsigned Arch, unsigned Type) {
2551 using namespace ELF;
2557 case SHT_ARM_PREEMPTMAP:
2558 return "ARM_PREEMPTMAP";
2559 case SHT_ARM_ATTRIBUTES:
2560 return "ARM_ATTRIBUTES";
2561 case SHT_ARM_DEBUGOVERLAY:
2562 return "ARM_DEBUGOVERLAY";
2563 case SHT_ARM_OVERLAYSECTION:
2564 return "ARM_OVERLAYSECTION";
2568 case SHT_X86_64_UNWIND:
2569 return "X86_64_UNWIND";
2572 case EM_MIPS_RS3_LE:
2574 case SHT_MIPS_REGINFO:
2575 return "MIPS_REGINFO";
2576 case SHT_MIPS_OPTIONS:
2577 return "MIPS_OPTIONS";
2578 case SHT_MIPS_ABIFLAGS:
2579 return "MIPS_ABIFLAGS";
2580 case SHT_MIPS_DWARF:
2581 return "SHT_MIPS_DWARF";
2609 case SHT_INIT_ARRAY:
2610 return "INIT_ARRAY";
2611 case SHT_FINI_ARRAY:
2612 return "FINI_ARRAY";
2613 case SHT_PREINIT_ARRAY:
2614 return "PREINIT_ARRAY";
2617 case SHT_SYMTAB_SHNDX:
2618 return "SYMTAB SECTION INDICES";
2619 // FIXME: Parse processor specific GNU attributes
2620 case SHT_GNU_ATTRIBUTES:
2621 return "ATTRIBUTES";
2624 case SHT_GNU_verdef:
2626 case SHT_GNU_verneed:
2628 case SHT_GNU_versym:
2636 template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) {
2637 size_t SectionIndex = 0;
2638 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize,
2643 if (ELFT::Is64Bits) {
2650 OS << "There are " << to_string(Obj->getHeader()->e_shnum)
2651 << " section headers, starting at offset "
2652 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n";
2653 OS << "Section Headers:\n";
2654 Field Fields[11] = {{"[Nr]", 2},
2659 {"Size", 65 - Bias},
2665 for (auto &f : Fields)
2669 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
2670 Number = to_string(SectionIndex);
2671 Fields[0].Str = Number;
2672 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec));
2673 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type);
2674 Fields[2].Str = Type;
2675 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width));
2676 Fields[3].Str = Address;
2677 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6));
2678 Fields[4].Str = Offset;
2679 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6));
2680 Fields[5].Str = Size;
2681 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2));
2682 Fields[6].Str = EntrySize;
2683 Flags = getGNUFlags(Sec.sh_flags);
2684 Fields[7].Str = Flags;
2685 Link = to_string(Sec.sh_link);
2686 Fields[8].Str = Link;
2687 Info = to_string(Sec.sh_info);
2688 Fields[9].Str = Info;
2689 Alignment = to_string(Sec.sh_addralign);
2690 Fields[10].Str = Alignment;
2691 OS.PadToColumn(Fields[0].Column);
2692 OS << "[" << right_justify(Fields[0].Str, 2) << "]";
2693 for (int i = 1; i < 7; i++)
2694 printField(Fields[i]);
2695 OS.PadToColumn(Fields[7].Column);
2696 OS << right_justify(Fields[7].Str, 3);
2697 OS.PadToColumn(Fields[8].Column);
2698 OS << right_justify(Fields[8].Str, 2);
2699 OS.PadToColumn(Fields[9].Column);
2700 OS << right_justify(Fields[9].Str, 3);
2701 OS.PadToColumn(Fields[10].Column);
2702 OS << right_justify(Fields[10].Str, 2);
2706 OS << "Key to Flags:\n"
2707 << " W (write), A (alloc), X (execute), M (merge), S (strings), l "
2709 << " I (info), L (link order), G (group), T (TLS), E (exclude),\
2711 << " O (extra OS processing required) o (OS specific),\
2712 p (processor specific)\n";
2715 template <class ELFT>
2716 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name,
2719 OS << "\nSymbol table '" << Name << "' contains " << Entries
2722 OS << "\n Symbol table for image:\n";
2725 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2727 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
2730 template <class ELFT>
2731 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj,
2732 const Elf_Sym *Symbol,
2733 const Elf_Sym *FirstSym) {
2734 unsigned SectionIndex = Symbol->st_shndx;
2735 switch (SectionIndex) {
2736 case ELF::SHN_UNDEF:
2740 case ELF::SHN_COMMON:
2742 case ELF::SHN_XINDEX:
2743 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>(
2744 Symbol, FirstSym, this->dumper()->getShndxTable()));
2748 // Processor specific
2749 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC)
2750 return std::string("PRC[0x") +
2751 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2753 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS)
2754 return std::string("OS[0x") +
2755 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2756 // Architecture reserved:
2757 if (SectionIndex >= ELF::SHN_LORESERVE &&
2758 SectionIndex <= ELF::SHN_HIRESERVE)
2759 return std::string("RSV[0x") +
2760 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
2761 // A normal section with an index
2762 return to_string(format_decimal(SectionIndex, 3));
2766 template <class ELFT>
2767 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
2768 const Elf_Sym *FirstSym, StringRef StrTable,
2771 static bool Dynamic = true;
2774 // If this function was called with a different value from IsDynamic
2775 // from last call, happens when we move from dynamic to static symbol
2776 // table, "Num" field should be reset.
2777 if (!Dynamic != !IsDynamic) {
2781 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section;
2783 if (ELFT::Is64Bits) {
2790 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias,
2791 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias};
2792 Num = to_string(format_decimal(Idx++, 6)) + ":";
2793 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width));
2794 Size = to_string(format_decimal(Symbol->st_size, 5));
2795 unsigned char SymbolType = Symbol->getType();
2796 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
2797 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
2798 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
2800 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
2801 unsigned Vis = Symbol->getVisibility();
2802 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
2803 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities));
2804 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym);
2805 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
2806 Fields[0].Str = Num;
2807 Fields[1].Str = Value;
2808 Fields[2].Str = Size;
2809 Fields[3].Str = Type;
2810 Fields[4].Str = Binding;
2811 Fields[5].Str = Visibility;
2812 Fields[6].Str = Section;
2813 Fields[7].Str = Name;
2814 for (auto &Entry : Fields)
2818 template <class ELFT>
2819 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym,
2820 uint32_t Sym, StringRef StrTable,
2822 std::string Num, Buc, Name, Value, Size, Binding, Type, Visibility, Section;
2823 unsigned Width, Bias = 0;
2824 if (ELFT::Is64Bits) {
2831 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias,
2832 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias};
2833 Num = to_string(format_decimal(Sym, 5));
2834 Buc = to_string(format_decimal(Bucket, 3)) + ":";
2836 const auto Symbol = FirstSym + Sym;
2837 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width));
2838 Size = to_string(format_decimal(Symbol->st_size, 5));
2839 unsigned char SymbolType = Symbol->getType();
2840 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
2841 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
2842 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
2844 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
2845 unsigned Vis = Symbol->getVisibility();
2846 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
2847 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities));
2848 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym);
2849 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, true);
2850 Fields[0].Str = Num;
2851 Fields[1].Str = Buc;
2852 Fields[2].Str = Value;
2853 Fields[3].Str = Size;
2854 Fields[4].Str = Type;
2855 Fields[5].Str = Binding;
2856 Fields[6].Str = Visibility;
2857 Fields[7].Str = Section;
2858 Fields[8].Str = Name;
2859 for (auto &Entry : Fields)
2864 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) {
2865 if (opts::DynamicSymbols)
2867 this->dumper()->printSymbolsHelper(true);
2868 this->dumper()->printSymbolsHelper(false);
2871 template <class ELFT>
2872 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
2873 if (this->dumper()->getDynamicStringTable().size() == 0)
2875 auto StringTable = this->dumper()->getDynamicStringTable();
2876 auto DynSyms = this->dumper()->dynamic_symbols();
2877 auto GnuHash = this->dumper()->getGnuHashTable();
2878 auto SysVHash = this->dumper()->getHashTable();
2880 // If no hash or .gnu.hash found, try using symbol table
2881 if (GnuHash == nullptr && SysVHash == nullptr)
2882 this->dumper()->printSymbolsHelper(true);
2884 // Try printing .hash
2885 if (this->dumper()->getHashTable()) {
2886 OS << "\n Symbol table of .hash for image:\n";
2888 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2890 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2893 uint32_t NBuckets = SysVHash->nbucket;
2894 uint32_t NChains = SysVHash->nchain;
2895 auto Buckets = SysVHash->buckets();
2896 auto Chains = SysVHash->chains();
2897 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) {
2898 if (Buckets[Buc] == ELF::STN_UNDEF)
2900 for (uint32_t Ch = Buckets[Buc]; Ch < NChains; Ch = Chains[Ch]) {
2901 if (Ch == ELF::STN_UNDEF)
2903 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc);
2908 // Try printing .gnu.hash
2910 OS << "\n Symbol table of .gnu.hash for image:\n";
2912 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2914 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
2916 uint32_t NBuckets = GnuHash->nbuckets;
2917 auto Buckets = GnuHash->buckets();
2918 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) {
2919 if (Buckets[Buc] == ELF::STN_UNDEF)
2921 uint32_t Index = Buckets[Buc];
2922 uint32_t GnuHashable = Index - GnuHash->symndx;
2923 // Print whole chain
2925 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc);
2926 // Chain ends at symbol with stopper bit
2927 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1)
2934 static inline std::string printPhdrFlags(unsigned Flag) {
2936 Str = (Flag & PF_R) ? "R" : " ";
2937 Str += (Flag & PF_W) ? "W" : " ";
2938 Str += (Flag & PF_X) ? "E" : " ";
2942 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO
2943 // PT_TLS must only have SHF_TLS sections
2944 template <class ELFT>
2945 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr,
2946 const Elf_Shdr &Sec) {
2947 return (((Sec.sh_flags & ELF::SHF_TLS) &&
2948 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) ||
2949 (Phdr.p_type == ELF::PT_GNU_RELRO))) ||
2950 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS));
2953 // Non-SHT_NOBITS must have its offset inside the segment
2954 // Only non-zero section can be at end of segment
2955 template <class ELFT>
2956 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
2957 if (Sec.sh_type == ELF::SHT_NOBITS)
2960 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
2961 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
2963 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
2964 if (Sec.sh_offset >= Phdr.p_offset)
2965 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset)
2966 /*only non-zero sized sections at end*/ &&
2967 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz));
2971 // SHF_ALLOC must have VMA inside segment
2972 // Only non-zero section can be at end of segment
2973 template <class ELFT>
2974 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
2975 if (!(Sec.sh_flags & ELF::SHF_ALLOC))
2978 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
2979 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
2981 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
2982 if (Sec.sh_addr >= Phdr.p_vaddr)
2983 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) &&
2984 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz));
2988 // No section with zero size must be at start or end of PT_DYNAMIC
2989 template <class ELFT>
2990 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
2991 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0)
2993 // Is section within the phdr both based on offset and VMA ?
2994 return ((Sec.sh_type == ELF::SHT_NOBITS) ||
2995 (Sec.sh_offset > Phdr.p_offset &&
2996 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) &&
2997 (!(Sec.sh_flags & ELF::SHF_ALLOC) ||
2998 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz));
3001 template <class ELFT>
3002 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
3003 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3004 unsigned Width = ELFT::Is64Bits ? 18 : 10;
3005 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7;
3006 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align;
3008 const Elf_Ehdr *Header = Obj->getHeader();
3009 Field Fields[8] = {2, 17, 26, 37 + Bias,
3010 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias};
3011 OS << "\nElf file type is "
3012 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n"
3013 << "Entry point " << format_hex(Header->e_entry, 3) << "\n"
3014 << "There are " << Header->e_phnum << " program headers,"
3015 << " starting at offset " << Header->e_phoff << "\n\n"
3016 << "Program Headers:\n";
3018 OS << " Type Offset VirtAddr PhysAddr "
3019 << " FileSiz MemSiz Flg Align\n";
3021 OS << " Type Offset VirtAddr PhysAddr FileSiz "
3022 << "MemSiz Flg Align\n";
3023 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) {
3024 Type = getElfPtType(Header->e_machine, Phdr.p_type);
3025 Offset = to_string(format_hex(Phdr.p_offset, 8));
3026 VMA = to_string(format_hex(Phdr.p_vaddr, Width));
3027 LMA = to_string(format_hex(Phdr.p_paddr, Width));
3028 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth));
3029 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth));
3030 Flag = printPhdrFlags(Phdr.p_flags);
3031 Align = to_string(format_hex(Phdr.p_align, 1));
3032 Fields[0].Str = Type;
3033 Fields[1].Str = Offset;
3034 Fields[2].Str = VMA;
3035 Fields[3].Str = LMA;
3036 Fields[4].Str = FileSz;
3037 Fields[5].Str = MemSz;
3038 Fields[6].Str = Flag;
3039 Fields[7].Str = Align;
3040 for (auto Field : Fields)
3042 if (Phdr.p_type == ELF::PT_INTERP) {
3043 OS << "\n [Requesting program interpreter: ";
3044 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]";
3048 OS << "\n Section to Segment mapping:\n Segment Sections...\n";
3050 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
3051 std::string Sections;
3052 OS << format(" %2.2d ", Phnum++);
3053 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3054 // Check if each section is in a segment and then print mapping.
3055 // readelf additionally makes sure it does not print zero sized sections
3056 // at end of segments and for PT_DYNAMIC both start and end of section
3057 // .tbss must only be shown in PT_TLS section.
3058 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) &&
3059 ((Sec.sh_flags & ELF::SHF_TLS) != 0) &&
3060 Phdr.p_type != ELF::PT_TLS;
3061 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) &&
3062 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) &&
3063 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL))
3064 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " ";
3066 OS << Sections << "\n";
3071 template <class ELFT>
3072 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R,
3074 SmallString<32> RelocName;
3075 StringRef SymbolName;
3076 unsigned Width = ELFT::Is64Bits ? 16 : 8;
3077 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
3078 // First two fields are bit width dependent. The rest of them are after are
3080 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
3082 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL());
3083 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
3084 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
3086 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
3087 std::string Addend = "", Info, Offset, Value;
3088 Offset = to_string(format_hex_no_prefix(R.r_offset, Width));
3089 Info = to_string(format_hex_no_prefix(R.r_info, Width));
3090 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width));
3091 int64_t RelAddend = R.r_addend;
3092 if (SymbolName.size() && IsRela) {
3099 if (!SymbolName.size() && Sym->getValue() == 0)
3103 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1));
3106 Fields[0].Str = Offset;
3107 Fields[1].Str = Info;
3108 Fields[2].Str = RelocName.c_str();
3109 Fields[3].Str = Value;
3110 Fields[4].Str = SymbolName;
3111 for (auto &Field : Fields)
3117 template <class ELFT>
3118 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3119 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3120 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3121 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3122 if (DynRelaRegion.Size > 0) {
3123 OS << "\n'RELA' relocation section at offset "
3124 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) -
3126 1) << " contains " << DynRelaRegion.Size << " bytes:\n";
3127 printRelocHeader(OS, ELFT::Is64Bits, true);
3128 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3129 printDynamicRelocation(Obj, Rela, true);
3131 if (DynRelRegion.Size > 0) {
3132 OS << "\n'REL' relocation section at offset "
3133 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) -
3135 1) << " contains " << DynRelRegion.Size << " bytes:\n";
3136 printRelocHeader(OS, ELFT::Is64Bits, false);
3137 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3139 Rela.r_offset = Rel.r_offset;
3140 Rela.r_info = Rel.r_info;
3142 printDynamicRelocation(Obj, Rela, false);
3145 if (DynPLTRelRegion.Size) {
3146 OS << "\n'PLT' relocation section at offset "
3147 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) -
3149 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n";
3151 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) {
3152 printRelocHeader(OS, ELFT::Is64Bits, true);
3153 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
3154 printDynamicRelocation(Obj, Rela, true);
3156 printRelocHeader(OS, ELFT::Is64Bits, false);
3157 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
3159 Rela.r_offset = Rel.r_offset;
3160 Rela.r_info = Rel.r_info;
3162 printDynamicRelocation(Obj, Rela, false);
3167 // Hash histogram shows statistics of how efficient the hash was for the
3168 // dynamic symbol table. The table shows number of hash buckets for different
3169 // lengths of chains as absolute number and percentage of the total buckets.
3170 // Additionally cumulative coverage of symbols for each set of buckets.
3171 template <class ELFT>
3172 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
3174 const Elf_Hash *HashTable = this->dumper()->getHashTable();
3175 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable();
3177 // Print histogram for .hash section
3179 size_t NBucket = HashTable->nbucket;
3180 size_t NChain = HashTable->nchain;
3181 ArrayRef<Elf_Word> Buckets = HashTable->buckets();
3182 ArrayRef<Elf_Word> Chains = HashTable->chains();
3183 size_t TotalSyms = 0;
3184 // If hash table is correct, we have at least chains with 0 length
3185 size_t MaxChain = 1;
3186 size_t CumulativeNonZero = 0;
3188 if (NChain == 0 || NBucket == 0)
3191 std::vector<size_t> ChainLen(NBucket, 0);
3192 // Go over all buckets and and note chain lengths of each bucket (total
3193 // unique chain lengths).
3194 for (size_t B = 0; B < NBucket; B++) {
3195 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C])
3196 if (MaxChain <= ++ChainLen[B])
3198 TotalSyms += ChainLen[B];
3204 std::vector<size_t> Count(MaxChain, 0) ;
3205 // Count how long is the chain for each bucket
3206 for (size_t B = 0; B < NBucket; B++)
3207 ++Count[ChainLen[B]];
3208 // Print Number of buckets with each chain lengths and their cumulative
3209 // coverage of the symbols
3210 OS << "Histogram for bucket list length (total of " << NBucket
3212 << " Length Number % of total Coverage\n";
3213 for (size_t I = 0; I < MaxChain; I++) {
3214 CumulativeNonZero += Count[I] * I;
3215 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3216 (Count[I] * 100.0) / NBucket,
3217 (CumulativeNonZero * 100.0) / TotalSyms);
3221 // Print histogram for .gnu.hash section
3223 size_t NBucket = GnuHashTable->nbuckets;
3224 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets();
3225 unsigned NumSyms = this->dumper()->dynamic_symbols().size();
3228 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms);
3229 size_t Symndx = GnuHashTable->symndx;
3230 size_t TotalSyms = 0;
3231 size_t MaxChain = 1;
3232 size_t CumulativeNonZero = 0;
3234 if (Chains.size() == 0 || NBucket == 0)
3237 std::vector<size_t> ChainLen(NBucket, 0);
3239 for (size_t B = 0; B < NBucket; B++) {
3243 for (size_t C = Buckets[B] - Symndx;
3244 C < Chains.size() && (Chains[C] & 1) == 0; C++)
3245 if (MaxChain < ++Len)
3255 std::vector<size_t> Count(MaxChain, 0) ;
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 `.gnu.hash' 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);
3272 static std::string getGNUNoteTypeName(const uint32_t NT) {
3273 static const struct {
3277 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"},
3278 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"},
3279 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"},
3280 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"},
3283 for (const auto &Note : Notes)
3285 return std::string(Note.Name);
3288 raw_string_ostream OS(string);
3289 OS << format("Unknown note type (0x%08x)", NT);
3293 static std::string getFreeBSDNoteTypeName(const uint32_t NT) {
3294 static const struct {
3298 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"},
3299 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"},
3300 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"},
3301 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"},
3302 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"},
3303 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"},
3304 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"},
3305 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"},
3306 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS,
3307 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"},
3308 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"},
3311 for (const auto &Note : Notes)
3313 return std::string(Note.Name);
3316 raw_string_ostream OS(string);
3317 OS << format("Unknown note type (0x%08x)", NT);
3321 template <typename ELFT>
3322 static void printGNUNote(raw_ostream &OS, uint32_t NoteType,
3323 ArrayRef<typename ELFFile<ELFT>::Elf_Word> Words,
3328 case ELF::NT_GNU_ABI_TAG: {
3329 static const char *OSNames[] = {
3330 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl",
3333 StringRef OSName = "Unknown";
3334 if (Words[0] < array_lengthof(OSNames))
3335 OSName = OSNames[Words[0]];
3336 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3];
3338 if (Words.size() < 4)
3339 OS << " <corrupt GNU_ABI_TAG>";
3341 OS << " OS: " << OSName << ", ABI: " << Major << "." << Minor << "."
3345 case ELF::NT_GNU_BUILD_ID: {
3346 OS << " Build ID: ";
3347 ArrayRef<uint8_t> ID(reinterpret_cast<const uint8_t *>(Words.data()), Size);
3348 for (const auto &B : ID)
3349 OS << format_hex_no_prefix(B, 2);
3352 case ELF::NT_GNU_GOLD_VERSION:
3354 << StringRef(reinterpret_cast<const char *>(Words.data()), Size);
3361 template <class ELFT>
3362 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
3363 const Elf_Ehdr *e = Obj->getHeader();
3364 bool IsCore = e->e_type == ELF::ET_CORE;
3366 auto process = [&](const typename ELFFile<ELFT>::Elf_Off Offset,
3367 const typename ELFFile<ELFT>::Elf_Addr Size) {
3371 const auto *P = static_cast<const uint8_t *>(Obj->base() + Offset);
3372 const auto *E = P + Size;
3374 OS << "Displaying notes found at file offset " << format_hex(Offset, 10)
3375 << " with length " << format_hex(Size, 10) << ":\n"
3376 << " Owner Data size\tDescription\n";
3379 const Elf_Word *Words = reinterpret_cast<const Elf_Word *>(&P[0]);
3381 uint32_t NameSize = Words[0];
3382 uint32_t DescriptorSize = Words[1];
3383 uint32_t Type = Words[2];
3385 ArrayRef<Elf_Word> Descriptor(&Words[3 + (alignTo<4>(NameSize) / 4)],
3386 alignTo<4>(DescriptorSize) / 4);
3391 StringRef(reinterpret_cast<const char *>(&Words[3]), NameSize - 1);
3393 OS << " " << Name << std::string(22 - NameSize, ' ')
3394 << format_hex(DescriptorSize, 10) << '\t';
3396 if (Name == "GNU") {
3397 OS << getGNUNoteTypeName(Type) << '\n';
3398 printGNUNote<ELFT>(OS, Type, Descriptor, DescriptorSize);
3399 } else if (Name == "FreeBSD") {
3400 OS << getFreeBSDNoteTypeName(Type) << '\n';
3402 OS << "Unknown note type: (" << format_hex(Type, 10) << ')';
3406 P = P + 3 * sizeof(Elf_Word) + alignTo<4>(NameSize) +
3407 alignTo<4>(DescriptorSize);
3412 for (const auto &P : unwrapOrError(Obj->program_headers()))
3413 if (P.p_type == PT_NOTE)
3414 process(P.p_offset, P.p_filesz);
3416 for (const auto &S : unwrapOrError(Obj->sections()))
3417 if (S.sh_type == SHT_NOTE)
3418 process(S.sh_offset, S.sh_size);
3422 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
3423 const Elf_Ehdr *e = Obj->getHeader();
3425 DictScope D(W, "ElfHeader");
3427 DictScope D(W, "Ident");
3428 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4));
3429 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
3430 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA],
3431 makeArrayRef(ElfDataEncoding));
3432 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]);
3434 // Handle architecture specific OS/ABI values.
3435 if (e->e_machine == ELF::EM_AMDGPU &&
3436 e->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA)
3437 W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA);
3439 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI],
3440 makeArrayRef(ElfOSABI));
3441 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]);
3442 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD));
3445 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType));
3446 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType));
3447 W.printNumber("Version", e->e_version);
3448 W.printHex("Entry", e->e_entry);
3449 W.printHex("ProgramHeaderOffset", e->e_phoff);
3450 W.printHex("SectionHeaderOffset", e->e_shoff);
3451 if (e->e_machine == EM_MIPS)
3452 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags),
3453 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
3454 unsigned(ELF::EF_MIPS_MACH));
3456 W.printFlags("Flags", e->e_flags);
3457 W.printNumber("HeaderSize", e->e_ehsize);
3458 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize);
3459 W.printNumber("ProgramHeaderCount", e->e_phnum);
3460 W.printNumber("SectionHeaderEntrySize", e->e_shentsize);
3461 W.printNumber("SectionHeaderCount", e->e_shnum);
3462 W.printNumber("StringTableSectionIndex", e->e_shstrndx);
3466 template <class ELFT>
3467 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) {
3468 DictScope Lists(W, "Groups");
3469 uint32_t SectionIndex = 0;
3470 bool HasGroups = false;
3471 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3472 if (Sec.sh_type == ELF::SHT_GROUP) {
3474 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
3475 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
3476 const Elf_Sym *Sym =
3477 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info));
3478 auto Data = unwrapOrError(
3479 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
3480 DictScope D(W, "Group");
3481 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3482 W.printNumber("Name", Name, Sec.sh_name);
3483 W.printNumber("Index", SectionIndex);
3484 W.printHex("Type", getGroupType(Data[0]), Data[0]);
3485 W.startLine() << "Signature: " << StrTable.data() + Sym->st_name << "\n";
3487 ListScope L(W, "Section(s) in group");
3489 while (Member < Data.size()) {
3490 auto Sec = unwrapOrError(Obj->getSection(Data[Member]));
3491 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
3492 W.startLine() << Name << " (" << Data[Member++] << ")\n";
3499 W.startLine() << "There are no group sections in the file.\n";
3502 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) {
3503 ListScope D(W, "Relocations");
3505 int SectionNumber = -1;
3506 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3509 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA)
3512 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3514 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
3517 printRelocations(&Sec, Obj);
3520 W.startLine() << "}\n";
3524 template <class ELFT>
3525 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) {
3526 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link));
3528 switch (Sec->sh_type) {
3530 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) {
3532 Rela.r_offset = R.r_offset;
3533 Rela.r_info = R.r_info;
3535 printRelocation(Obj, Rela, SymTab);
3539 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec)))
3540 printRelocation(Obj, R, SymTab);
3545 template <class ELFT>
3546 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel,
3547 const Elf_Shdr *SymTab) {
3548 SmallString<32> RelocName;
3549 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
3550 StringRef TargetName;
3551 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab));
3552 if (Sym && Sym->getType() == ELF::STT_SECTION) {
3553 const Elf_Shdr *Sec = unwrapOrError(
3554 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
3555 TargetName = unwrapOrError(Obj->getSectionName(Sec));
3557 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
3558 TargetName = unwrapOrError(Sym->getName(StrTable));
3561 if (opts::ExpandRelocs) {
3562 DictScope Group(W, "Relocation");
3563 W.printHex("Offset", Rel.r_offset);
3564 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
3565 W.printNumber("Symbol", TargetName.size() > 0 ? TargetName : "-",
3566 Rel.getSymbol(Obj->isMips64EL()));
3567 W.printHex("Addend", Rel.r_addend);
3569 raw_ostream &OS = W.startLine();
3570 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
3571 << (TargetName.size() > 0 ? TargetName : "-") << " "
3572 << W.hex(Rel.r_addend) << "\n";
3576 template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) {
3577 ListScope SectionsD(W, "Sections");
3579 int SectionIndex = -1;
3580 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3583 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
3585 DictScope SectionD(W, "Section");
3586 W.printNumber("Index", SectionIndex);
3587 W.printNumber("Name", Name, Sec.sh_name);
3590 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type),
3592 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags),
3593 std::end(ElfSectionFlags));
3594 switch (Obj->getHeader()->e_machine) {
3596 SectionFlags.insert(SectionFlags.end(), std::begin(ElfAMDGPUSectionFlags),
3597 std::end(ElfAMDGPUSectionFlags));
3600 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags),
3601 std::end(ElfARMSectionFlags));
3604 SectionFlags.insert(SectionFlags.end(),
3605 std::begin(ElfHexagonSectionFlags),
3606 std::end(ElfHexagonSectionFlags));
3609 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags),
3610 std::end(ElfMipsSectionFlags));
3613 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags),
3614 std::end(ElfX86_64SectionFlags));
3617 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags),
3618 std::end(ElfXCoreSectionFlags));
3624 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags));
3625 W.printHex("Address", Sec.sh_addr);
3626 W.printHex("Offset", Sec.sh_offset);
3627 W.printNumber("Size", Sec.sh_size);
3628 W.printNumber("Link", Sec.sh_link);
3629 W.printNumber("Info", Sec.sh_info);
3630 W.printNumber("AddressAlignment", Sec.sh_addralign);
3631 W.printNumber("EntrySize", Sec.sh_entsize);
3633 if (opts::SectionRelocations) {
3634 ListScope D(W, "Relocations");
3635 printRelocations(&Sec, Obj);
3638 if (opts::SectionSymbols) {
3639 ListScope D(W, "Symbols");
3640 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec();
3641 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
3643 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) {
3644 const Elf_Shdr *SymSec = unwrapOrError(
3645 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable()));
3647 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(),
3652 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) {
3653 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec));
3654 W.printBinaryBlock("SectionData",
3655 StringRef((const char *)Data.data(), Data.size()));
3660 template <class ELFT>
3661 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
3662 const Elf_Sym *First, StringRef StrTable,
3664 unsigned SectionIndex = 0;
3665 StringRef SectionName;
3666 getSectionNameIndex(*Obj, Symbol, First, this->dumper()->getShndxTable(),
3667 SectionName, SectionIndex);
3668 std::string FullSymbolName =
3669 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
3670 unsigned char SymbolType = Symbol->getType();
3672 DictScope D(W, "Symbol");
3673 W.printNumber("Name", FullSymbolName, Symbol->st_name);
3674 W.printHex("Value", Symbol->st_value);
3675 W.printNumber("Size", Symbol->st_size);
3676 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
3677 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
3678 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
3679 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes));
3681 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes));
3682 if (Symbol->st_other == 0)
3683 // Usually st_other flag is zero. Do not pollute the output
3684 // by flags enumeration in that case.
3685 W.printNumber("Other", 0);
3687 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags),
3688 std::end(ElfSymOtherFlags));
3689 if (Obj->getHeader()->e_machine == EM_MIPS) {
3690 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16
3691 // flag overlapped with other ST_MIPS_xxx flags. So consider both
3692 // cases separately.
3693 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16)
3694 SymOtherFlags.insert(SymOtherFlags.end(),
3695 std::begin(ElfMips16SymOtherFlags),
3696 std::end(ElfMips16SymOtherFlags));
3698 SymOtherFlags.insert(SymOtherFlags.end(),
3699 std::begin(ElfMipsSymOtherFlags),
3700 std::end(ElfMipsSymOtherFlags));
3702 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u);
3704 W.printHex("Section", SectionName, SectionIndex);
3707 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) {
3708 ListScope Group(W, "Symbols");
3709 this->dumper()->printSymbolsHelper(false);
3712 template <class ELFT>
3713 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
3714 ListScope Group(W, "DynamicSymbols");
3715 this->dumper()->printSymbolsHelper(true);
3718 template <class ELFT>
3719 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
3720 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3721 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
3722 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3723 if (DynRelRegion.Size && DynRelaRegion.Size)
3724 report_fatal_error("There are both REL and RELA dynamic relocations");
3725 W.startLine() << "Dynamic Relocations {\n";
3727 if (DynRelaRegion.Size > 0)
3728 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3729 printDynamicRelocation(Obj, Rela);
3731 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3733 Rela.r_offset = Rel.r_offset;
3734 Rela.r_info = Rel.r_info;
3736 printDynamicRelocation(Obj, Rela);
3738 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela))
3739 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
3740 printDynamicRelocation(Obj, Rela);
3742 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
3744 Rela.r_offset = Rel.r_offset;
3745 Rela.r_info = Rel.r_info;
3747 printDynamicRelocation(Obj, Rela);
3750 W.startLine() << "}\n";
3753 template <class ELFT>
3754 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) {
3755 SmallString<32> RelocName;
3756 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
3757 StringRef SymbolName;
3758 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL());
3759 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
3761 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable()));
3762 if (opts::ExpandRelocs) {
3763 DictScope Group(W, "Relocation");
3764 W.printHex("Offset", Rel.r_offset);
3765 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
3766 W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
3767 W.printHex("Addend", Rel.r_addend);
3769 raw_ostream &OS = W.startLine();
3770 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
3771 << (SymbolName.size() > 0 ? SymbolName : "-") << " "
3772 << W.hex(Rel.r_addend) << "\n";
3776 template <class ELFT>
3777 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
3778 ListScope L(W, "ProgramHeaders");
3780 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
3781 DictScope P(W, "ProgramHeader");
3783 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type),
3785 W.printHex("Offset", Phdr.p_offset);
3786 W.printHex("VirtualAddress", Phdr.p_vaddr);
3787 W.printHex("PhysicalAddress", Phdr.p_paddr);
3788 W.printNumber("FileSize", Phdr.p_filesz);
3789 W.printNumber("MemSize", Phdr.p_memsz);
3790 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags));
3791 W.printNumber("Alignment", Phdr.p_align);
3795 template <class ELFT>
3796 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
3797 W.startLine() << "Hash Histogram not implemented!\n";
3800 template <class ELFT>
3801 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
3802 W.startLine() << "printNotes not implemented!\n";