diff options
Diffstat (limited to 'tools/llvm-readobj/ELFDumper.cpp')
| -rw-r--r-- | tools/llvm-readobj/ELFDumper.cpp | 2842 |
1 files changed, 2103 insertions, 739 deletions
diff --git a/tools/llvm-readobj/ELFDumper.cpp b/tools/llvm-readobj/ELFDumper.cpp index be84f3c0f1bba..06fbe8d3fccba 100644 --- a/tools/llvm-readobj/ELFDumper.cpp +++ b/tools/llvm-readobj/ELFDumper.cpp @@ -12,13 +12,12 @@ /// //===----------------------------------------------------------------------===// -#include "llvm-readobj.h" #include "ARMAttributeParser.h" #include "ARMEHABIPrinter.h" #include "Error.h" #include "ObjDumper.h" #include "StackMapPrinter.h" -#include "StreamWriter.h" +#include "llvm-readobj.h" #include "llvm/ADT/Optional.h" #include "llvm/ADT/SmallString.h" #include "llvm/ADT/StringExtras.h" @@ -26,8 +25,10 @@ #include "llvm/Support/ARMBuildAttributes.h" #include "llvm/Support/Compiler.h" #include "llvm/Support/Format.h" +#include "llvm/Support/FormattedStream.h" #include "llvm/Support/MathExtras.h" #include "llvm/Support/MipsABIFlags.h" +#include "llvm/Support/ScopedPrinter.h" #include "llvm/Support/raw_ostream.h" using namespace llvm; @@ -37,12 +38,66 @@ using namespace ELF; #define LLVM_READOBJ_ENUM_CASE(ns, enum) \ case ns::enum: return #enum; +#define ENUM_ENT(enum, altName) \ + { #enum, altName, ELF::enum } + +#define ENUM_ENT_1(enum) \ + { #enum, #enum, ELF::enum } + +#define LLVM_READOBJ_PHDR_ENUM(ns, enum) \ + case ns::enum: \ + return std::string(#enum).substr(3); + +#define TYPEDEF_ELF_TYPES(ELFT) \ + typedef ELFFile<ELFT> ELFO; \ + typedef typename ELFO::Elf_Shdr Elf_Shdr; \ + typedef typename ELFO::Elf_Sym Elf_Sym; \ + typedef typename ELFO::Elf_Dyn Elf_Dyn; \ + typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range; \ + typedef typename ELFO::Elf_Rel Elf_Rel; \ + typedef typename ELFO::Elf_Rela Elf_Rela; \ + typedef typename ELFO::Elf_Rela_Range Elf_Rela_Range; \ + typedef typename ELFO::Elf_Phdr Elf_Phdr; \ + typedef typename ELFO::Elf_Half Elf_Half; \ + typedef typename ELFO::Elf_Ehdr Elf_Ehdr; \ + typedef typename ELFO::Elf_Word Elf_Word; \ + typedef typename ELFO::Elf_Hash Elf_Hash; \ + typedef typename ELFO::Elf_GnuHash Elf_GnuHash; \ + typedef typename ELFO::uintX_t uintX_t; + namespace { +template <class ELFT> class DumpStyle; + +/// Represents a contiguous uniform range in the file. We cannot just create a +/// range directly because when creating one of these from the .dynamic table +/// the size, entity size and virtual address are different entries in arbitrary +/// order (DT_REL, DT_RELSZ, DT_RELENT for example). +struct DynRegionInfo { + DynRegionInfo() : Addr(nullptr), Size(0), EntSize(0) {} + DynRegionInfo(const void *A, uint64_t S, uint64_t ES) + : Addr(A), Size(S), EntSize(ES) {} + /// \brief Address in current address space. + const void *Addr; + /// \brief Size in bytes of the region. + uint64_t Size; + /// \brief Size of each entity in the region. + uint64_t EntSize; + + template <typename Type> ArrayRef<Type> getAsArrayRef() const { + const Type *Start = reinterpret_cast<const Type *>(Addr); + if (!Start) + return {Start, Start}; + if (EntSize != sizeof(Type) || Size % EntSize) + reportError("Invalid entity size"); + return {Start, Start + (Size / EntSize)}; + } +}; + template<typename ELFT> class ELFDumper : public ObjDumper { public: - ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer); + ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer); void printFileHeaders() override; void printSections() override; @@ -59,22 +114,29 @@ public: void printGnuHashTable() override; void printLoadName() override; void printVersionInfo() override; + void printGroupSections() override; void printAttributes() override; void printMipsPLTGOT() override; void printMipsABIFlags() override; void printMipsReginfo() override; + void printMipsOptions() override; void printStackMap() const override; + void printHashHistogram() override; + private: + std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle; typedef ELFFile<ELFT> ELFO; typedef typename ELFO::Elf_Shdr Elf_Shdr; typedef typename ELFO::Elf_Sym Elf_Sym; + typedef typename ELFO::Elf_Sym_Range Elf_Sym_Range; typedef typename ELFO::Elf_Dyn Elf_Dyn; typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range; typedef typename ELFO::Elf_Rel Elf_Rel; typedef typename ELFO::Elf_Rela Elf_Rela; + typedef typename ELFO::Elf_Rel_Range Elf_Rel_Range; typedef typename ELFO::Elf_Rela_Range Elf_Rela_Range; typedef typename ELFO::Elf_Phdr Elf_Phdr; typedef typename ELFO::Elf_Half Elf_Half; @@ -89,55 +151,44 @@ private: typedef typename ELFO::Elf_Verdef Elf_Verdef; typedef typename ELFO::Elf_Verdaux Elf_Verdaux; - /// \brief Represents a region described by entries in the .dynamic table. - struct DynRegionInfo { - DynRegionInfo() : Addr(nullptr), Size(0), EntSize(0) {} - /// \brief Address in current address space. - const void *Addr; - /// \brief Size in bytes of the region. - uintX_t Size; - /// \brief Size of each entity in the region. - uintX_t EntSize; - }; + DynRegionInfo checkDRI(DynRegionInfo DRI) { + if (DRI.Addr < Obj->base() || + (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize()) + error(llvm::object::object_error::parse_failed); + return DRI; + } + + DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) { + return checkDRI({Obj->base() + P->p_offset, P->p_filesz, EntSize}); + } - void printSymbolsHelper(bool IsDynamic); - void printSymbol(const Elf_Sym *Symbol, const Elf_Shdr *SymTab, - StringRef StrTable, bool IsDynamic); + DynRegionInfo createDRIFrom(const Elf_Shdr *S) { + return checkDRI({Obj->base() + S->sh_offset, S->sh_size, S->sh_entsize}); + } + + void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments); - void printRelocations(const Elf_Shdr *Sec); - void printRelocation(Elf_Rela Rel, const Elf_Shdr *SymTab); void printValue(uint64_t Type, uint64_t Value); - const Elf_Rela *dyn_rela_begin() const; - const Elf_Rela *dyn_rela_end() const; - Elf_Rela_Range dyn_relas() const; StringRef getDynamicString(uint64_t Offset) const; - const Elf_Dyn *dynamic_table_begin() const { - ErrorOr<const Elf_Dyn *> Ret = Obj->dynamic_table_begin(DynamicProgHeader); - error(Ret.getError()); - return *Ret; - } - const Elf_Dyn *dynamic_table_end() const { - ErrorOr<const Elf_Dyn *> Ret = Obj->dynamic_table_end(DynamicProgHeader); - error(Ret.getError()); - return *Ret; - } StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb, - bool &IsDefault); - void LoadVersionMap(); + bool &IsDefault) const; + void LoadVersionMap() const; void LoadVersionNeeds(const Elf_Shdr *ec) const; void LoadVersionDefs(const Elf_Shdr *sec) const; const ELFO *Obj; + DynRegionInfo DynRelRegion; DynRegionInfo DynRelaRegion; - const Elf_Phdr *DynamicProgHeader = nullptr; + DynRegionInfo DynPLTRelRegion; + DynRegionInfo DynSymRegion; + DynRegionInfo DynamicTable; StringRef DynamicStringTable; - const Elf_Sym *DynSymStart = nullptr; StringRef SOName; const Elf_Hash *HashTable = nullptr; const Elf_GnuHash *GnuHashTable = nullptr; - const Elf_Shdr *DotDynSymSec = nullptr; const Elf_Shdr *DotSymtabSec = nullptr; + StringRef DynSymtabName; ArrayRef<Elf_Word> ShndxTable; const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version @@ -169,40 +220,176 @@ private: public: Elf_Dyn_Range dynamic_table() const { - ErrorOr<Elf_Dyn_Range> Ret = Obj->dynamic_table(DynamicProgHeader); - error(Ret.getError()); - return *Ret; + return DynamicTable.getAsArrayRef<Elf_Dyn>(); + } + + Elf_Sym_Range dynamic_symbols() const { + return DynSymRegion.getAsArrayRef<Elf_Sym>(); } + Elf_Rel_Range dyn_rels() const; + Elf_Rela_Range dyn_relas() const; std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable, - bool IsDynamic); - const Elf_Shdr *getDotDynSymSec() const { return DotDynSymSec; } + bool IsDynamic) const; + + void printSymbolsHelper(bool IsDynamic) const; const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; } - ArrayRef<Elf_Word> getShndxTable() { return ShndxTable; } + ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; } + StringRef getDynamicStringTable() const { return DynamicStringTable; } + const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; } + const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; } + const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; } + const Elf_Hash *getHashTable() const { return HashTable; } + const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; } }; -template <class T> T errorOrDefault(ErrorOr<T> Val, T Default = T()) { - if (!Val) { - error(Val.getError()); - return Default; +template <class ELFT> +void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const { + StringRef StrTable, SymtabName; + size_t Entries = 0; + Elf_Sym_Range Syms(nullptr, nullptr); + if (IsDynamic) { + StrTable = DynamicStringTable; + Syms = dynamic_symbols(); + SymtabName = DynSymtabName; + if (DynSymRegion.Addr) + Entries = DynSymRegion.Size / DynSymRegion.EntSize; + } else { + if (!DotSymtabSec) + return; + StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); + Syms = Obj->symbols(DotSymtabSec); + SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec)); + Entries = DotSymtabSec->getEntityCount(); + } + if (Syms.begin() == Syms.end()) + return; + ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries); + for (const auto &Sym : Syms) + ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic); +} + +template <typename ELFT> class DumpStyle { +public: + using Elf_Shdr = typename ELFFile<ELFT>::Elf_Shdr; + using Elf_Sym = typename ELFFile<ELFT>::Elf_Sym; + + DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {} + virtual ~DumpStyle() {} + virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0; + virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0; + virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0; + virtual void printSections(const ELFFile<ELFT> *Obj) = 0; + virtual void printSymbols(const ELFFile<ELFT> *Obj) = 0; + virtual void printDynamicSymbols(const ELFFile<ELFT> *Obj) = 0; + virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0; + virtual void printSymtabMessage(const ELFFile<ELFT> *obj, StringRef Name, + size_t Offset) { + return; } + virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol, + const Elf_Sym *FirstSym, StringRef StrTable, + bool IsDynamic) = 0; + virtual void printProgramHeaders(const ELFFile<ELFT> *Obj) = 0; + virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0; + const ELFDumper<ELFT> *dumper() const { return Dumper; } +private: + const ELFDumper<ELFT> *Dumper; +}; + +template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> { + formatted_raw_ostream OS; +public: + TYPEDEF_ELF_TYPES(ELFT) + GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) + : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {} + void printFileHeaders(const ELFO *Obj) override; + void printGroupSections(const ELFFile<ELFT> *Obj) override; + void printRelocations(const ELFO *Obj) override; + void printSections(const ELFO *Obj) override; + void printSymbols(const ELFO *Obj) override; + void printDynamicSymbols(const ELFO *Obj) override; + void printDynamicRelocations(const ELFO *Obj) override; + virtual void printSymtabMessage(const ELFO *Obj, StringRef Name, + size_t Offset) override; + void printProgramHeaders(const ELFO *Obj) override; + void printHashHistogram(const ELFFile<ELFT> *Obj) override; + +private: + struct Field { + StringRef Str; + unsigned Column; + Field(StringRef S, unsigned Col) : Str(S), Column(Col) {} + Field(unsigned Col) : Str(""), Column(Col) {} + }; + + template <typename T, typename TEnum> + std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) { + for (const auto &EnumItem : EnumValues) + if (EnumItem.Value == Value) + return EnumItem.AltName; + return to_hexString(Value, false); + } + + formatted_raw_ostream &printField(struct Field F) { + if (F.Column != 0) + OS.PadToColumn(F.Column); + OS << F.Str; + OS.flush(); + return OS; + } + void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, + const Elf_Rela &R, bool IsRela); + void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, + StringRef StrTable, bool IsDynamic) override; + std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol, + const Elf_Sym *FirstSym); + void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela); + bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); + bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); + bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); + bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); +}; + +template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> { +public: + TYPEDEF_ELF_TYPES(ELFT) + LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) + : DumpStyle<ELFT>(Dumper), W(W) {} + + void printFileHeaders(const ELFO *Obj) override; + void printGroupSections(const ELFFile<ELFT> *Obj) override; + void printRelocations(const ELFO *Obj) override; + void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj); + void printSections(const ELFO *Obj) override; + void printSymbols(const ELFO *Obj) override; + void printDynamicSymbols(const ELFO *Obj) override; + void printDynamicRelocations(const ELFO *Obj) override; + void printProgramHeaders(const ELFO *Obj) override; + void printHashHistogram(const ELFFile<ELFT> *Obj) override; + +private: + void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab); + void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel); + void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, + StringRef StrTable, bool IsDynamic) override; + ScopedPrinter &W; +}; - return *Val; -} } // namespace namespace llvm { template <class ELFT> static std::error_code createELFDumper(const ELFFile<ELFT> *Obj, - StreamWriter &Writer, + ScopedPrinter &Writer, std::unique_ptr<ObjDumper> &Result) { Result.reset(new ELFDumper<ELFT>(Obj, Writer)); return readobj_error::success; } std::error_code createELFDumper(const object::ObjectFile *Obj, - StreamWriter &Writer, + ScopedPrinter &Writer, std::unique_ptr<ObjDumper> &Result) { // Little-endian 32-bit if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) @@ -284,9 +471,9 @@ void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const { } } -template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() { +template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const { // If there is no dynamic symtab or version table, there is nothing to do. - if (!DynSymStart || !dot_gnu_version_sec) + if (!DynSymRegion.Addr || !dot_gnu_version_sec) return; // Has the VersionMap already been loaded? @@ -305,99 +492,157 @@ template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() { LoadVersionNeeds(dot_gnu_version_r_sec); } - template <typename ELFO, class ELFT> -static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, - const ELFO *Obj, +static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj, const typename ELFO::Elf_Shdr *Sec, - StreamWriter &W) { + ScopedPrinter &W) { DictScope SS(W, "Version symbols"); if (!Sec) return; - StringRef Name = errorOrDefault(Obj->getSectionName(Sec)); + StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); W.printNumber("Section Name", Name, Sec->sh_name); W.printHex("Address", Sec->sh_addr); W.printHex("Offset", Sec->sh_offset); W.printNumber("Link", Sec->sh_link); - const typename ELFO::Elf_Shdr *DynSymSec = Dumper->getDotDynSymSec(); const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset; - ErrorOr<StringRef> StrTableOrErr = - Obj->getStringTableForSymtab(*DynSymSec); - error(StrTableOrErr.getError()); + StringRef StrTable = Dumper->getDynamicStringTable(); // Same number of entries in the dynamic symbol table (DT_SYMTAB). ListScope Syms(W, "Symbols"); - for (const typename ELFO::Elf_Sym &Sym : Obj->symbols(DynSymSec)) { + for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) { DictScope S(W, "Symbol"); std::string FullSymbolName = - Dumper->getFullSymbolName(&Sym, *StrTableOrErr, true /* IsDynamic */); + Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */); W.printNumber("Version", *P); W.printString("Name", FullSymbolName); P += sizeof(typename ELFO::Elf_Half); } } +static const EnumEntry<unsigned> SymVersionFlags[] = { + {"Base", "BASE", VER_FLG_BASE}, + {"Weak", "WEAK", VER_FLG_WEAK}, + {"Info", "INFO", VER_FLG_INFO}}; + template <typename ELFO, class ELFT> static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj, const typename ELFO::Elf_Shdr *Sec, - StreamWriter &W) { - DictScope SD(W, "Version definition"); + ScopedPrinter &W) { + typedef typename ELFO::Elf_Verdef VerDef; + typedef typename ELFO::Elf_Verdaux VerdAux; + + DictScope SD(W, "SHT_GNU_verdef"); if (!Sec) return; - StringRef Name = errorOrDefault(Obj->getSectionName(Sec)); - W.printNumber("Section Name", Name, Sec->sh_name); - W.printHex("Address", Sec->sh_addr); - W.printHex("Offset", Sec->sh_offset); - W.printNumber("Link", Sec->sh_link); - unsigned verdef_entries = 0; // The number of entries in the section SHT_GNU_verdef // is determined by DT_VERDEFNUM tag. + unsigned VerDefsNum = 0; for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) { if (Dyn.d_tag == DT_VERDEFNUM) - verdef_entries = Dyn.d_un.d_val; + VerDefsNum = Dyn.d_un.d_val; } const uint8_t *SecStartAddress = (const uint8_t *)Obj->base() + Sec->sh_offset; const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size; const uint8_t *P = SecStartAddress; - ErrorOr<const typename ELFO::Elf_Shdr *> StrTabOrErr = - Obj->getSection(Sec->sh_link); - error(StrTabOrErr.getError()); + const typename ELFO::Elf_Shdr *StrTab = + unwrapOrError(Obj->getSection(Sec->sh_link)); - ListScope Entries(W, "Entries"); - for (unsigned i = 0; i < verdef_entries; ++i) { - if (P + sizeof(typename ELFO::Elf_Verdef) > SecEndAddress) + while (VerDefsNum--) { + if (P + sizeof(VerDef) > SecEndAddress) report_fatal_error("invalid offset in the section"); - auto *VD = reinterpret_cast<const typename ELFO::Elf_Verdef *>(P); - DictScope Entry(W, "Entry"); - W.printHex("Offset", (uintptr_t)P - (uintptr_t)SecStartAddress); - W.printNumber("Rev", VD->vd_version); - // FIXME: print something more readable. - W.printNumber("Flags", VD->vd_flags); + + auto *VD = reinterpret_cast<const VerDef *>(P); + DictScope Def(W, "Definition"); + W.printNumber("Version", VD->vd_version); + W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags)); W.printNumber("Index", VD->vd_ndx); - W.printNumber("Cnt", VD->vd_cnt); - W.printString("Name", StringRef((const char *)(Obj->base() + - (*StrTabOrErr)->sh_offset + - VD->getAux()->vda_name))); + W.printNumber("Hash", VD->vd_hash); + W.printString("Name", + StringRef((const char *)(Obj->base() + StrTab->sh_offset + + VD->getAux()->vda_name))); + if (!VD->vd_cnt) + report_fatal_error("at least one definition string must exist"); + if (VD->vd_cnt > 2) + report_fatal_error("more than one predecessor is not expected"); + + if (VD->vd_cnt == 2) { + const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next; + const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux); + W.printString("Predecessor", + StringRef((const char *)(Obj->base() + StrTab->sh_offset + + Aux->vda_name))); + } + P += VD->vd_next; } } +template <typename ELFO, class ELFT> +static void printVersionDependencySection(ELFDumper<ELFT> *Dumper, + const ELFO *Obj, + const typename ELFO::Elf_Shdr *Sec, + ScopedPrinter &W) { + typedef typename ELFO::Elf_Verneed VerNeed; + typedef typename ELFO::Elf_Vernaux VernAux; + + DictScope SD(W, "SHT_GNU_verneed"); + if (!Sec) + return; + + unsigned VerNeedNum = 0; + for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) + if (Dyn.d_tag == DT_VERNEEDNUM) + VerNeedNum = Dyn.d_un.d_val; + + const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset; + const typename ELFO::Elf_Shdr *StrTab = + unwrapOrError(Obj->getSection(Sec->sh_link)); + + const uint8_t *P = SecData; + for (unsigned I = 0; I < VerNeedNum; ++I) { + const VerNeed *Need = reinterpret_cast<const VerNeed *>(P); + DictScope Entry(W, "Dependency"); + W.printNumber("Version", Need->vn_version); + W.printNumber("Count", Need->vn_cnt); + W.printString("FileName", + StringRef((const char *)(Obj->base() + StrTab->sh_offset + + Need->vn_file))); + + const uint8_t *PAux = P + Need->vn_aux; + for (unsigned J = 0; J < Need->vn_cnt; ++J) { + const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux); + DictScope Entry(W, "Entry"); + W.printNumber("Hash", Aux->vna_hash); + W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags)); + W.printNumber("Index", Aux->vna_other); + W.printString("Name", + StringRef((const char *)(Obj->base() + StrTab->sh_offset + + Aux->vna_name))); + PAux += Aux->vna_next; + } + P += Need->vn_next; + } +} + template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() { // Dump version symbol section. printVersionSymbolSection(this, Obj, dot_gnu_version_sec, W); // Dump version definition section. printVersionDefinitionSection(this, Obj, dot_gnu_version_d_sec, W); + + // Dump version dependency section. + printVersionDependencySection(this, Obj, dot_gnu_version_r_sec, W); } template <typename ELFT> StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, const Elf_Sym *symb, - bool &IsDefault) { + bool &IsDefault) const { // This is a dynamic symbol. Look in the GNU symbol version table. if (!dot_gnu_version_sec) { // No version table. @@ -407,7 +652,7 @@ StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, // Determine the position in the symbol table of this entry. size_t entry_index = (reinterpret_cast<uintptr_t>(symb) - - reinterpret_cast<uintptr_t>(DynSymStart)) / + reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) / sizeof(Elf_Sym); // Get the corresponding version index entry @@ -446,8 +691,8 @@ StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, template <typename ELFT> std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable, - bool IsDynamic) { - StringRef SymbolName = errorOrDefault(Symbol->getName(StrTable)); + bool IsDynamic) const { + StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable)); if (!IsDynamic) return SymbolName; @@ -463,7 +708,7 @@ std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol, template <typename ELFO> static void getSectionNameIndex(const ELFO &Obj, const typename ELFO::Elf_Sym *Symbol, - const typename ELFO::Elf_Shdr *SymTab, + const typename ELFO::Elf_Sym *FirstSym, ArrayRef<typename ELFO::Elf_Word> ShndxTable, StringRef &SectionName, unsigned &SectionIndex) { SectionIndex = Symbol->st_shndx; @@ -482,18 +727,18 @@ getSectionNameIndex(const ELFO &Obj, const typename ELFO::Elf_Sym *Symbol, else { if (SectionIndex == SHN_XINDEX) SectionIndex = - Obj.getExtendedSymbolTableIndex(Symbol, SymTab, ShndxTable); - ErrorOr<const typename ELFO::Elf_Shdr *> Sec = Obj.getSection(SectionIndex); - error(Sec.getError()); - SectionName = errorOrDefault(Obj.getSectionName(*Sec)); + Obj.getExtendedSymbolTableIndex(Symbol, FirstSym, ShndxTable); + const typename ELFO::Elf_Shdr *Sec = + unwrapOrError(Obj.getSection(SectionIndex)); + SectionName = unwrapOrError(Obj.getSectionName(Sec)); } } template <class ELFO> -static const typename ELFO::Elf_Shdr *findSectionByAddress(const ELFO *Obj, - uint64_t Addr) { +static const typename ELFO::Elf_Shdr * +findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) { for (const auto &Shdr : Obj->sections()) - if (Shdr.sh_addr == Addr) + if (Shdr.sh_addr == Addr && Shdr.sh_size > 0) return &Shdr; return nullptr; } @@ -502,233 +747,239 @@ template <class ELFO> static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj, StringRef Name) { for (const auto &Shdr : Obj.sections()) { - if (Name == errorOrDefault(Obj.getSectionName(&Shdr))) + if (Name == unwrapOrError(Obj.getSectionName(&Shdr))) return &Shdr; } return nullptr; } static const EnumEntry<unsigned> ElfClass[] = { - { "None", ELF::ELFCLASSNONE }, - { "32-bit", ELF::ELFCLASS32 }, - { "64-bit", ELF::ELFCLASS64 }, + {"None", "none", ELF::ELFCLASSNONE}, + {"32-bit", "ELF32", ELF::ELFCLASS32}, + {"64-bit", "ELF64", ELF::ELFCLASS64}, }; static const EnumEntry<unsigned> ElfDataEncoding[] = { - { "None", ELF::ELFDATANONE }, - { "LittleEndian", ELF::ELFDATA2LSB }, - { "BigEndian", ELF::ELFDATA2MSB }, + {"None", "none", ELF::ELFDATANONE}, + {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB}, + {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB}, }; static const EnumEntry<unsigned> ElfObjectFileType[] = { - { "None", ELF::ET_NONE }, - { "Relocatable", ELF::ET_REL }, - { "Executable", ELF::ET_EXEC }, - { "SharedObject", ELF::ET_DYN }, - { "Core", ELF::ET_CORE }, + {"None", "NONE (none)", ELF::ET_NONE}, + {"Relocatable", "REL (Relocatable file)", ELF::ET_REL}, + {"Executable", "EXEC (Executable file)", ELF::ET_EXEC}, + {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN}, + {"Core", "CORE (Core file)", ELF::ET_CORE}, }; static const EnumEntry<unsigned> ElfOSABI[] = { - { "SystemV", ELF::ELFOSABI_NONE }, - { "HPUX", ELF::ELFOSABI_HPUX }, - { "NetBSD", ELF::ELFOSABI_NETBSD }, - { "GNU/Linux", ELF::ELFOSABI_LINUX }, - { "GNU/Hurd", ELF::ELFOSABI_HURD }, - { "Solaris", ELF::ELFOSABI_SOLARIS }, - { "AIX", ELF::ELFOSABI_AIX }, - { "IRIX", ELF::ELFOSABI_IRIX }, - { "FreeBSD", ELF::ELFOSABI_FREEBSD }, - { "TRU64", ELF::ELFOSABI_TRU64 }, - { "Modesto", ELF::ELFOSABI_MODESTO }, - { "OpenBSD", ELF::ELFOSABI_OPENBSD }, - { "OpenVMS", ELF::ELFOSABI_OPENVMS }, - { "NSK", ELF::ELFOSABI_NSK }, - { "AROS", ELF::ELFOSABI_AROS }, - { "FenixOS", ELF::ELFOSABI_FENIXOS }, - { "CloudABI", ELF::ELFOSABI_CLOUDABI }, - { "C6000_ELFABI", ELF::ELFOSABI_C6000_ELFABI }, - { "C6000_LINUX" , ELF::ELFOSABI_C6000_LINUX }, - { "ARM", ELF::ELFOSABI_ARM }, - { "Standalone" , ELF::ELFOSABI_STANDALONE } + {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE}, + {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX}, + {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD}, + {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX}, + {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD}, + {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS}, + {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX}, + {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX}, + {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD}, + {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64}, + {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO}, + {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD}, + {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS}, + {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK}, + {"AROS", "AROS", ELF::ELFOSABI_AROS}, + {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS}, + {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI}, + {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI}, + {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX}, + {"ARM", "ARM", ELF::ELFOSABI_ARM}, + {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE} }; static const EnumEntry<unsigned> ElfMachineType[] = { - LLVM_READOBJ_ENUM_ENT(ELF, EM_NONE ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_M32 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_386 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_68K ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_88K ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_IAMCU ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_860 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_S370 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_RS3_LE ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_PARISC ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_VPP500 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC32PLUS ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_960 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC64 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_S390 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SPU ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_V800 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_FR20 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_RH32 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_RCE ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ARM ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ALPHA ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SH ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARCV9 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TRICORE ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300H ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_H8S ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_500 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_IA_64 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_X ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_COLDFIRE ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC12 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MMA ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_PCP ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_NCPU ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_NDR1 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_STARCORE ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ME16 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ST100 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TINYJ ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_X86_64 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_PDSP ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP10 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP11 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_FX66 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ST9PLUS ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ST7 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC16 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC11 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC08 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC05 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SVX ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ST19 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_VAX ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_CRIS ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_JAVELIN ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_FIREPATH ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ZSP ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MMIX ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_HUANY ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_PRISM ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_FR30 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_D10V ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_D30V ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_V850 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_M32R ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10300 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10200 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_PJ ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_OPENRISC ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_XTENSA ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TMM_GPP ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_NS32K ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TPC ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SNP1K ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ST200 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_IP2K ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MAX ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_CR ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_F2MC16 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MSP430 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_BLACKFIN ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C33 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SEP ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ARCA ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_UNICORE ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_EXCESS ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_DXP ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ALTERA_NIOS2 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_CRX ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_XGATE ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_C166 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_M16C ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_DSPIC30F ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_CE ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_M32C ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TSK3000 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_RS08 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SHARC ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG2 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SCORE7 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_DSP24 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE3 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_LATTICEMICO32), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C17 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C6000 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C2000 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C5500 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MMDSP_PLUS ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_CYPRESS_M8C ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_R32C ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TRIMEDIA ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_HEXAGON ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_8051 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_STXP7X ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_NDS32 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1X ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MAXQ30 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_XIMO16 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MANIK ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_CRAYNV2 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_RX ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_METAG ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_MCST_ELBRUS ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG16 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_CR16 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ETPU ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_SLE9X ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_L10M ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_K10M ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_AARCH64 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR32 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_STM8 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TILE64 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEPRO ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_CUDA ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEGX ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_CLOUDSHIELD ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_1ST ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_2ND ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT2 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_OPEN8 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_RL78 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE5 ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_78KOR ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_56800EX ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_AMDGPU ), - LLVM_READOBJ_ENUM_ENT(ELF, EM_WEBASSEMBLY ), + ENUM_ENT(EM_NONE, "None"), + ENUM_ENT(EM_M32, "WE32100"), + ENUM_ENT(EM_SPARC, "Sparc"), + ENUM_ENT(EM_386, "Intel 80386"), + ENUM_ENT(EM_68K, "MC68000"), + ENUM_ENT(EM_88K, "MC88000"), + ENUM_ENT(EM_IAMCU, "EM_IAMCU"), + ENUM_ENT(EM_860, "Intel 80860"), + ENUM_ENT(EM_MIPS, "MIPS R3000"), + ENUM_ENT(EM_S370, "IBM System/370"), + ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"), + ENUM_ENT(EM_PARISC, "HPPA"), + ENUM_ENT(EM_VPP500, "Fujitsu VPP500"), + ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"), + ENUM_ENT(EM_960, "Intel 80960"), + ENUM_ENT(EM_PPC, "PowerPC"), + ENUM_ENT(EM_PPC64, "PowerPC64"), + ENUM_ENT(EM_S390, "IBM S/390"), + ENUM_ENT(EM_SPU, "SPU"), + ENUM_ENT(EM_V800, "NEC V800 series"), + ENUM_ENT(EM_FR20, "Fujistsu FR20"), + ENUM_ENT(EM_RH32, "TRW RH-32"), + ENUM_ENT(EM_RCE, "Motorola RCE"), + ENUM_ENT(EM_ARM, "ARM"), + ENUM_ENT(EM_ALPHA, "EM_ALPHA"), + ENUM_ENT(EM_SH, "Hitachi SH"), + ENUM_ENT(EM_SPARCV9, "Sparc v9"), + ENUM_ENT(EM_TRICORE, "Siemens Tricore"), + ENUM_ENT(EM_ARC, "ARC"), + ENUM_ENT(EM_H8_300, "Hitachi H8/300"), + ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"), + ENUM_ENT(EM_H8S, "Hitachi H8S"), + ENUM_ENT(EM_H8_500, "Hitachi H8/500"), + ENUM_ENT(EM_IA_64, "Intel IA-64"), + ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"), + ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"), + ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"), + ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"), + ENUM_ENT(EM_PCP, "Siemens PCP"), + ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"), + ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"), + ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"), + ENUM_ENT(EM_ME16, "Toyota ME16 processor"), + ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"), + ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"), + ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"), + ENUM_ENT(EM_PDSP, "Sony DSP processor"), + ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"), + ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"), + ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"), + ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"), + ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"), + ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"), + ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"), + ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"), + ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"), + ENUM_ENT(EM_SVX, "Silicon Graphics SVx"), + ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"), + ENUM_ENT(EM_VAX, "Digital VAX"), + ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"), + ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"), + ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"), + ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"), + ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"), + ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"), + ENUM_ENT(EM_PRISM, "Vitesse Prism"), + ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"), + ENUM_ENT(EM_FR30, "Fujitsu FR30"), + ENUM_ENT(EM_D10V, "Mitsubishi D10V"), + ENUM_ENT(EM_D30V, "Mitsubishi D30V"), + ENUM_ENT(EM_V850, "NEC v850"), + ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"), + ENUM_ENT(EM_MN10300, "Matsushita MN10300"), + ENUM_ENT(EM_MN10200, "Matsushita MN10200"), + ENUM_ENT(EM_PJ, "picoJava"), + ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"), + ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"), + ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"), + ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"), + ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"), + ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"), + ENUM_ENT(EM_TPC, "Tenor Network TPC processor"), + ENUM_ENT(EM_SNP1K, "EM_SNP1K"), + ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"), + ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"), + ENUM_ENT(EM_MAX, "MAX Processor"), + ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"), + ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"), + ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"), + ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"), + ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"), + ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"), + ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"), + ENUM_ENT(EM_UNICORE, "Unicore"), + ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"), + ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"), + ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"), + ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"), + ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"), + ENUM_ENT(EM_C166, "Infineon Technologies xc16x"), + ENUM_ENT(EM_M16C, "Renesas M16C"), + ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"), + ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"), + ENUM_ENT(EM_M32C, "Renesas M32C"), + ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"), + ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"), + ENUM_ENT(EM_SHARC, "EM_SHARC"), + ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"), + ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"), + ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"), + ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"), + ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"), + ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"), + ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"), + ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"), + ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"), + ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"), + ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"), + ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"), + ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"), + ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"), + ENUM_ENT(EM_8051, "Intel 8051 and variants"), + ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"), + ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"), + ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"), + ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"), + ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"), + ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"), + ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"), + ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"), + ENUM_ENT(EM_RX, "Renesas RX"), + ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"), + ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"), + ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"), + ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"), + ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"), + ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"), + ENUM_ENT(EM_L10M, "EM_L10M"), + ENUM_ENT(EM_K10M, "EM_K10M"), + ENUM_ENT(EM_AARCH64, "AArch64"), + ENUM_ENT(EM_AVR32, "Atmel AVR 8-bit microcontroller"), + ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"), + ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"), + ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"), + ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"), + ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"), + ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"), + ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"), + ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"), + ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"), + ENUM_ENT(EM_OPEN8, "EM_OPEN8"), + ENUM_ENT(EM_RL78, "Renesas RL78"), + ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"), + ENUM_ENT(EM_78KOR, "EM_78KOR"), + ENUM_ENT(EM_56800EX, "EM_56800EX"), + ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"), + ENUM_ENT(EM_WEBASSEMBLY, "EM_WEBASSEMBLY"), + ENUM_ENT(EM_LANAI, "EM_LANAI"), + ENUM_ENT(EM_BPF, "EM_BPF"), }; static const EnumEntry<unsigned> ElfSymbolBindings[] = { - { "Local", ELF::STB_LOCAL }, - { "Global", ELF::STB_GLOBAL }, - { "Weak", ELF::STB_WEAK }, - { "Unique", ELF::STB_GNU_UNIQUE } -}; + {"Local", "LOCAL", ELF::STB_LOCAL}, + {"Global", "GLOBAL", ELF::STB_GLOBAL}, + {"Weak", "WEAK", ELF::STB_WEAK}, + {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}}; + +static const EnumEntry<unsigned> ElfSymbolVisibilities[] = { + {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT}, + {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL}, + {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN}, + {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}}; static const EnumEntry<unsigned> ElfSymbolTypes[] = { - { "None", ELF::STT_NOTYPE }, - { "Object", ELF::STT_OBJECT }, - { "Function", ELF::STT_FUNC }, - { "Section", ELF::STT_SECTION }, - { "File", ELF::STT_FILE }, - { "Common", ELF::STT_COMMON }, - { "TLS", ELF::STT_TLS }, - { "GNU_IFunc", ELF::STT_GNU_IFUNC } -}; + {"None", "NOTYPE", ELF::STT_NOTYPE}, + {"Object", "OBJECT", ELF::STT_OBJECT}, + {"Function", "FUNC", ELF::STT_FUNC}, + {"Section", "SECTION", ELF::STT_SECTION}, + {"File", "FILE", ELF::STT_FILE}, + {"Common", "COMMON", ELF::STT_COMMON}, + {"TLS", "TLS", ELF::STT_TLS}, + {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}}; static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = { { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL }, @@ -786,27 +1037,92 @@ static const char *getElfSectionType(unsigned Arch, unsigned Type) { } } +static const char *getGroupType(uint32_t Flag) { + if (Flag & ELF::GRP_COMDAT) + return "COMDAT"; + else + return "(unknown)"; +} + static const EnumEntry<unsigned> ElfSectionFlags[] = { - LLVM_READOBJ_ENUM_ENT(ELF, SHF_WRITE ), - LLVM_READOBJ_ENUM_ENT(ELF, SHF_ALLOC ), - LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXCLUDE ), - LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXECINSTR ), - LLVM_READOBJ_ENUM_ENT(ELF, SHF_MERGE ), - LLVM_READOBJ_ENUM_ENT(ELF, SHF_STRINGS ), - LLVM_READOBJ_ENUM_ENT(ELF, SHF_INFO_LINK ), - LLVM_READOBJ_ENUM_ENT(ELF, SHF_LINK_ORDER ), - LLVM_READOBJ_ENUM_ENT(ELF, SHF_OS_NONCONFORMING), - LLVM_READOBJ_ENUM_ENT(ELF, SHF_GROUP ), - LLVM_READOBJ_ENUM_ENT(ELF, SHF_TLS ), + ENUM_ENT(SHF_WRITE, "W"), + ENUM_ENT(SHF_ALLOC, "A"), + ENUM_ENT(SHF_EXCLUDE, "E"), + ENUM_ENT(SHF_EXECINSTR, "X"), + ENUM_ENT(SHF_MERGE, "M"), + ENUM_ENT(SHF_STRINGS, "S"), + ENUM_ENT(SHF_INFO_LINK, "I"), + ENUM_ENT(SHF_LINK_ORDER, "L"), + ENUM_ENT(SHF_OS_NONCONFORMING, "o"), + ENUM_ENT(SHF_GROUP, "G"), + ENUM_ENT(SHF_TLS, "T"), + ENUM_ENT(SHF_MASKOS, "o"), + ENUM_ENT(SHF_MASKPROC, "p"), + ENUM_ENT_1(SHF_COMPRESSED), +}; + +static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = { LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION), - LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION), - LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP ), + LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION) +}; + +static const EnumEntry<unsigned> ElfAMDGPUSectionFlags[] = { LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_GLOBAL), LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_READONLY), LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_CODE), LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_AGENT) }; +static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = { + LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL) +}; + +static const EnumEntry<unsigned> ElfMipsSectionFlags[] = { + LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES), + LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ), + LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ), + LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP), + LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ), + LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ), + LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ), + LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING ) +}; + +static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = { + LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE) +}; + +static std::string getGNUFlags(uint64_t Flags) { + std::string Str; + for (auto Entry : ElfSectionFlags) { + uint64_t Flag = Entry.Value & Flags; + Flags &= ~Entry.Value; + switch (Flag) { + case ELF::SHF_WRITE: + case ELF::SHF_ALLOC: + case ELF::SHF_EXECINSTR: + case ELF::SHF_MERGE: + case ELF::SHF_STRINGS: + case ELF::SHF_INFO_LINK: + case ELF::SHF_LINK_ORDER: + case ELF::SHF_OS_NONCONFORMING: + case ELF::SHF_GROUP: + case ELF::SHF_TLS: + case ELF::SHF_EXCLUDE: + Str += Entry.AltName; + break; + default: + if (Flag & ELF::SHF_MASKOS) + Str += "o"; + else if (Flag & ELF::SHF_MASKPROC) + Str += "p"; + else if (Flag) + Str += "x"; + } + } + return Str; +} + static const char *getElfSegmentType(unsigned Arch, unsigned Type) { // Check potentially overlapped processor-specific // program header type. @@ -851,6 +1167,53 @@ static const char *getElfSegmentType(unsigned Arch, unsigned Type) { } } +static std::string getElfPtType(unsigned Arch, unsigned Type) { + switch (Type) { + LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL) + LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD) + LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC) + LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP) + LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE) + LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB) + LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR) + LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS) + LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME) + LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND) + LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK) + LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO) + default: + // All machine specific PT_* types + switch (Arch) { + case ELF::EM_AMDGPU: + switch (Type) { + LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM); + LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT); + LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT); + LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT); + } + return ""; + case ELF::EM_ARM: + if (Type == ELF::PT_ARM_EXIDX) + return "EXIDX"; + return ""; + case ELF::EM_MIPS: + case ELF::EM_MIPS_RS3_LE: + switch (Type) { + case PT_MIPS_REGINFO: + return "REGINFO"; + case PT_MIPS_RTPROC: + return "RTPROC"; + case PT_MIPS_OPTIONS: + return "OPTIONS"; + case PT_MIPS_ABIFLAGS: + return "ABIFLAGS"; + } + return ""; + } + } + return std::string("<unknown>: ") + to_string(format_hex(Type, 1)); +} + static const EnumEntry<unsigned> ElfSegmentFlags[] = { LLVM_READOBJ_ENUM_ENT(ELF, PF_X), LLVM_READOBJ_ENUM_ENT(ELF, PF_W), @@ -903,14 +1266,52 @@ static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = { LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6) }; +static const EnumEntry<unsigned> ElfSymOtherFlags[] = { + LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL), + LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN), + LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED) +}; + +static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = { + LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), + LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), + LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC), + LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS) +}; + +static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = { + LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), + LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), + LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16) +}; + +static const char *getElfMipsOptionsOdkType(unsigned Odk) { + switch (Odk) { + LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL); + LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO); + LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS); + LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD); + LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH); + LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL); + LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS); + LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND); + LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR); + LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP); + LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT); + LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE); + default: + return "Unknown"; + } +} + template <typename ELFT> -ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer) +ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer) : ObjDumper(Writer), Obj(Obj) { SmallVector<const Elf_Phdr *, 4> LoadSegments; for (const Elf_Phdr &Phdr : Obj->program_headers()) { if (Phdr.p_type == ELF::PT_DYNAMIC) { - DynamicProgHeader = &Phdr; + DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn)); continue; } if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0) @@ -918,8 +1319,54 @@ ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer) LoadSegments.push_back(&Phdr); } + for (const Elf_Shdr &Sec : Obj->sections()) { + switch (Sec.sh_type) { + case ELF::SHT_SYMTAB: + if (DotSymtabSec != nullptr) + reportError("Multilpe SHT_SYMTAB"); + DotSymtabSec = &Sec; + break; + case ELF::SHT_DYNSYM: + if (DynSymRegion.Size) + reportError("Multilpe SHT_DYNSYM"); + DynSymRegion = createDRIFrom(&Sec); + // This is only used (if Elf_Shdr present)for naming section in GNU style + DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec)); + break; + case ELF::SHT_SYMTAB_SHNDX: + ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec)); + break; + case ELF::SHT_GNU_versym: + if (dot_gnu_version_sec != nullptr) + reportError("Multiple SHT_GNU_versym"); + dot_gnu_version_sec = &Sec; + break; + case ELF::SHT_GNU_verdef: + if (dot_gnu_version_d_sec != nullptr) + reportError("Multiple SHT_GNU_verdef"); + dot_gnu_version_d_sec = &Sec; + break; + case ELF::SHT_GNU_verneed: + if (dot_gnu_version_r_sec != nullptr) + reportError("Multilpe SHT_GNU_verneed"); + dot_gnu_version_r_sec = &Sec; + break; + } + } + + parseDynamicTable(LoadSegments); + + if (opts::Output == opts::GNU) + ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this)); + else + ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this)); +} + +template <typename ELFT> +void ELFDumper<ELFT>::parseDynamicTable( + ArrayRef<const Elf_Phdr *> LoadSegments) { auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * { - const Elf_Phdr **I = std::upper_bound( + const Elf_Phdr *const *I = std::upper_bound( LoadSegments.begin(), LoadSegments.end(), VAddr, compareAddr<ELFT>); if (I == LoadSegments.begin()) report_fatal_error("Virtual address is not in any segment"); @@ -944,6 +1391,16 @@ ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer) GnuHashTable = reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr())); break; + case ELF::DT_STRTAB: + StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr()); + break; + case ELF::DT_STRSZ: + StringTableSize = Dyn.getVal(); + break; + case ELF::DT_SYMTAB: + DynSymRegion.Addr = toMappedAddr(Dyn.getPtr()); + DynSymRegion.EntSize = sizeof(Elf_Sym); + break; case ELF::DT_RELA: DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr()); break; @@ -956,15 +1413,29 @@ ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer) case ELF::DT_SONAME: SONameOffset = Dyn.getVal(); break; - case ELF::DT_STRTAB: - StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr()); + case ELF::DT_REL: + DynRelRegion.Addr = toMappedAddr(Dyn.getPtr()); break; - case ELF::DT_STRSZ: - StringTableSize = Dyn.getVal(); + case ELF::DT_RELSZ: + DynRelRegion.Size = Dyn.getVal(); break; - case ELF::DT_SYMTAB: - DynSymStart = - reinterpret_cast<const Elf_Sym *>(toMappedAddr(Dyn.getPtr())); + case ELF::DT_RELENT: + DynRelRegion.EntSize = Dyn.getVal(); + break; + case ELF::DT_PLTREL: + if (Dyn.getVal() == DT_REL) + DynPLTRelRegion.EntSize = sizeof(Elf_Rel); + else if (Dyn.getVal() == DT_RELA) + DynPLTRelRegion.EntSize = sizeof(Elf_Rela); + else + reportError(Twine("unknown DT_PLTREL value of ") + + Twine((uint64_t)Dyn.getVal())); + break; + case ELF::DT_JMPREL: + DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr()); + break; + case ELF::DT_PLTRELSZ: + DynPLTRelRegion.Size = Dyn.getVal(); break; } } @@ -972,326 +1443,54 @@ ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer) DynamicStringTable = StringRef(StringTableBegin, StringTableSize); if (SONameOffset) SOName = getDynamicString(SONameOffset); - - for (const Elf_Shdr &Sec : Obj->sections()) { - switch (Sec.sh_type) { - case ELF::SHT_GNU_versym: - if (dot_gnu_version_sec != nullptr) - reportError("Multiple SHT_GNU_versym"); - dot_gnu_version_sec = &Sec; - break; - case ELF::SHT_GNU_verdef: - if (dot_gnu_version_d_sec != nullptr) - reportError("Multiple SHT_GNU_verdef"); - dot_gnu_version_d_sec = &Sec; - break; - case ELF::SHT_GNU_verneed: - if (dot_gnu_version_r_sec != nullptr) - reportError("Multilpe SHT_GNU_verneed"); - dot_gnu_version_r_sec = &Sec; - break; - case ELF::SHT_DYNSYM: - if (DotDynSymSec != nullptr) - reportError("Multilpe SHT_DYNSYM"); - DotDynSymSec = &Sec; - break; - case ELF::SHT_SYMTAB: - if (DotSymtabSec != nullptr) - reportError("Multilpe SHT_SYMTAB"); - DotSymtabSec = &Sec; - break; - case ELF::SHT_SYMTAB_SHNDX: { - ErrorOr<ArrayRef<Elf_Word>> TableOrErr = Obj->getSHNDXTable(Sec); - error(TableOrErr.getError()); - ShndxTable = *TableOrErr; - break; - } - } - } -} - -template <typename ELFT> -const typename ELFDumper<ELFT>::Elf_Rela * -ELFDumper<ELFT>::dyn_rela_begin() const { - if (DynRelaRegion.Size && DynRelaRegion.EntSize != sizeof(Elf_Rela)) - report_fatal_error("Invalid relocation entry size"); - return reinterpret_cast<const Elf_Rela *>(DynRelaRegion.Addr); } template <typename ELFT> -const typename ELFDumper<ELFT>::Elf_Rela * -ELFDumper<ELFT>::dyn_rela_end() const { - uint64_t Size = DynRelaRegion.Size; - if (Size % sizeof(Elf_Rela)) - report_fatal_error("Invalid relocation table size"); - return dyn_rela_begin() + Size / sizeof(Elf_Rela); +typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const { + return DynRelRegion.getAsArrayRef<Elf_Rel>(); } template <typename ELFT> typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const { - return make_range(dyn_rela_begin(), dyn_rela_end()); + return DynRelaRegion.getAsArrayRef<Elf_Rela>(); } template<class ELFT> void ELFDumper<ELFT>::printFileHeaders() { - const Elf_Ehdr *Header = Obj->getHeader(); - - { - DictScope D(W, "ElfHeader"); - { - DictScope D(W, "Ident"); - W.printBinary("Magic", makeArrayRef(Header->e_ident).slice(ELF::EI_MAG0, - 4)); - W.printEnum ("Class", Header->e_ident[ELF::EI_CLASS], - makeArrayRef(ElfClass)); - W.printEnum ("DataEncoding", Header->e_ident[ELF::EI_DATA], - makeArrayRef(ElfDataEncoding)); - W.printNumber("FileVersion", Header->e_ident[ELF::EI_VERSION]); - - // Handle architecture specific OS/ABI values. - if (Header->e_machine == ELF::EM_AMDGPU && - Header->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA) - W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA); - else - W.printEnum ("OS/ABI", Header->e_ident[ELF::EI_OSABI], - makeArrayRef(ElfOSABI)); - W.printNumber("ABIVersion", Header->e_ident[ELF::EI_ABIVERSION]); - W.printBinary("Unused", makeArrayRef(Header->e_ident).slice(ELF::EI_PAD)); - } - - W.printEnum ("Type", Header->e_type, makeArrayRef(ElfObjectFileType)); - W.printEnum ("Machine", Header->e_machine, makeArrayRef(ElfMachineType)); - W.printNumber("Version", Header->e_version); - W.printHex ("Entry", Header->e_entry); - W.printHex ("ProgramHeaderOffset", Header->e_phoff); - W.printHex ("SectionHeaderOffset", Header->e_shoff); - if (Header->e_machine == EM_MIPS) - W.printFlags("Flags", Header->e_flags, makeArrayRef(ElfHeaderMipsFlags), - unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), - unsigned(ELF::EF_MIPS_MACH)); - else - W.printFlags("Flags", Header->e_flags); - W.printNumber("HeaderSize", Header->e_ehsize); - W.printNumber("ProgramHeaderEntrySize", Header->e_phentsize); - W.printNumber("ProgramHeaderCount", Header->e_phnum); - W.printNumber("SectionHeaderEntrySize", Header->e_shentsize); - W.printNumber("SectionHeaderCount", Header->e_shnum); - W.printNumber("StringTableSectionIndex", Header->e_shstrndx); - } + ELFDumperStyle->printFileHeaders(Obj); } template<class ELFT> void ELFDumper<ELFT>::printSections() { - ListScope SectionsD(W, "Sections"); - - int SectionIndex = -1; - for (const Elf_Shdr &Sec : Obj->sections()) { - ++SectionIndex; - - StringRef Name = errorOrDefault(Obj->getSectionName(&Sec)); - - DictScope SectionD(W, "Section"); - W.printNumber("Index", SectionIndex); - W.printNumber("Name", Name, Sec.sh_name); - W.printHex("Type", - getElfSectionType(Obj->getHeader()->e_machine, Sec.sh_type), - Sec.sh_type); - W.printFlags("Flags", Sec.sh_flags, makeArrayRef(ElfSectionFlags)); - W.printHex("Address", Sec.sh_addr); - W.printHex("Offset", Sec.sh_offset); - W.printNumber("Size", Sec.sh_size); - W.printNumber("Link", Sec.sh_link); - W.printNumber("Info", Sec.sh_info); - W.printNumber("AddressAlignment", Sec.sh_addralign); - W.printNumber("EntrySize", Sec.sh_entsize); - - if (opts::SectionRelocations) { - ListScope D(W, "Relocations"); - printRelocations(&Sec); - } - - if (opts::SectionSymbols) { - ListScope D(W, "Symbols"); - const Elf_Shdr *Symtab = DotSymtabSec; - ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*Symtab); - error(StrTableOrErr.getError()); - StringRef StrTable = *StrTableOrErr; - - for (const Elf_Sym &Sym : Obj->symbols(Symtab)) { - ErrorOr<const Elf_Shdr *> SymSec = - Obj->getSection(&Sym, Symtab, ShndxTable); - if (!SymSec) - continue; - if (*SymSec == &Sec) - printSymbol(&Sym, Symtab, StrTable, false); - } - } - - if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) { - ArrayRef<uint8_t> Data = errorOrDefault(Obj->getSectionContents(&Sec)); - W.printBinaryBlock("SectionData", - StringRef((const char *)Data.data(), Data.size())); - } - } + ELFDumperStyle->printSections(Obj); } template<class ELFT> void ELFDumper<ELFT>::printRelocations() { - ListScope D(W, "Relocations"); - - int SectionNumber = -1; - for (const Elf_Shdr &Sec : Obj->sections()) { - ++SectionNumber; - - if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA) - continue; - - StringRef Name = errorOrDefault(Obj->getSectionName(&Sec)); - - W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; - W.indent(); - - printRelocations(&Sec); - - W.unindent(); - W.startLine() << "}\n"; - } -} - -template<class ELFT> -void ELFDumper<ELFT>::printDynamicRelocations() { - W.startLine() << "Dynamic Relocations {\n"; - W.indent(); - for (const Elf_Rela &Rel : dyn_relas()) { - SmallString<32> RelocName; - Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); - StringRef SymbolName; - uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL()); - const Elf_Sym *Sym = DynSymStart + SymIndex; - SymbolName = errorOrDefault(Sym->getName(DynamicStringTable)); - if (opts::ExpandRelocs) { - DictScope Group(W, "Relocation"); - W.printHex("Offset", Rel.r_offset); - W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); - W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-"); - W.printHex("Addend", Rel.r_addend); - } - else { - raw_ostream& OS = W.startLine(); - OS << W.hex(Rel.r_offset) << " " << RelocName << " " - << (SymbolName.size() > 0 ? SymbolName : "-") << " " - << W.hex(Rel.r_addend) << "\n"; - } - } - W.unindent(); - W.startLine() << "}\n"; -} - -template <class ELFT> -void ELFDumper<ELFT>::printRelocations(const Elf_Shdr *Sec) { - ErrorOr<const Elf_Shdr *> SymTabOrErr = Obj->getSection(Sec->sh_link); - error(SymTabOrErr.getError()); - const Elf_Shdr *SymTab = *SymTabOrErr; - - switch (Sec->sh_type) { - case ELF::SHT_REL: - for (const Elf_Rel &R : Obj->rels(Sec)) { - Elf_Rela Rela; - Rela.r_offset = R.r_offset; - Rela.r_info = R.r_info; - Rela.r_addend = 0; - printRelocation(Rela, SymTab); - } - break; - case ELF::SHT_RELA: - for (const Elf_Rela &R : Obj->relas(Sec)) - printRelocation(R, SymTab); - break; - } + ELFDumperStyle->printRelocations(Obj); } -template <class ELFT> -void ELFDumper<ELFT>::printRelocation(Elf_Rela Rel, const Elf_Shdr *SymTab) { - SmallString<32> RelocName; - Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); - StringRef TargetName; - const Elf_Sym *Sym = Obj->getRelocationSymbol(&Rel, SymTab); - if (Sym && Sym->getType() == ELF::STT_SECTION) { - ErrorOr<const Elf_Shdr *> Sec = Obj->getSection(Sym, SymTab, ShndxTable); - error(Sec.getError()); - ErrorOr<StringRef> SecName = Obj->getSectionName(*Sec); - if (SecName) - TargetName = SecName.get(); - } else if (Sym) { - ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*SymTab); - error(StrTableOrErr.getError()); - TargetName = errorOrDefault(Sym->getName(*StrTableOrErr)); - } - - if (opts::ExpandRelocs) { - DictScope Group(W, "Relocation"); - W.printHex("Offset", Rel.r_offset); - W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); - W.printNumber("Symbol", TargetName.size() > 0 ? TargetName : "-", - Rel.getSymbol(Obj->isMips64EL())); - W.printHex("Addend", Rel.r_addend); - } else { - raw_ostream& OS = W.startLine(); - OS << W.hex(Rel.r_offset) << " " << RelocName << " " - << (TargetName.size() > 0 ? TargetName : "-") << " " - << W.hex(Rel.r_addend) << "\n"; - } +template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() { + ELFDumperStyle->printProgramHeaders(Obj); } -template<class ELFT> -void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) { - const Elf_Shdr *Symtab = (IsDynamic) ? DotDynSymSec : DotSymtabSec; - if (!Symtab) - return; - ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*Symtab); - error(StrTableOrErr.getError()); - StringRef StrTable = *StrTableOrErr; - for (const Elf_Sym &Sym : Obj->symbols(Symtab)) - printSymbol(&Sym, Symtab, StrTable, IsDynamic); +template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() { + ELFDumperStyle->printDynamicRelocations(Obj); } template<class ELFT> void ELFDumper<ELFT>::printSymbols() { - ListScope Group(W, "Symbols"); - printSymbolsHelper(false); + ELFDumperStyle->printSymbols(Obj); } template<class ELFT> void ELFDumper<ELFT>::printDynamicSymbols() { - ListScope Group(W, "DynamicSymbols"); - printSymbolsHelper(true); + ELFDumperStyle->printDynamicSymbols(Obj); } -template <class ELFT> -void ELFDumper<ELFT>::printSymbol(const Elf_Sym *Symbol, const Elf_Shdr *SymTab, - StringRef StrTable, bool IsDynamic) { - unsigned SectionIndex = 0; - StringRef SectionName; - getSectionNameIndex(*Obj, Symbol, SymTab, ShndxTable, SectionName, - SectionIndex); - std::string FullSymbolName = getFullSymbolName(Symbol, StrTable, IsDynamic); - unsigned char SymbolType = Symbol->getType(); - - DictScope D(W, "Symbol"); - W.printNumber("Name", FullSymbolName, Symbol->st_name); - W.printHex ("Value", Symbol->st_value); - W.printNumber("Size", Symbol->st_size); - W.printEnum ("Binding", Symbol->getBinding(), - makeArrayRef(ElfSymbolBindings)); - if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && - SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) - W.printEnum ("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes)); - else - W.printEnum ("Type", SymbolType, makeArrayRef(ElfSymbolTypes)); - W.printNumber("Other", Symbol->st_other); - W.printHex("Section", SectionName, SectionIndex); +template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() { + ELFDumperStyle->printHashHistogram(Obj); } - #define LLVM_READOBJ_TYPE_CASE(name) \ case DT_##name: return #name @@ -1336,8 +1535,11 @@ static const char *getTypeString(uint64_t Type) { LLVM_READOBJ_TYPE_CASE(VERNEED); LLVM_READOBJ_TYPE_CASE(VERNEEDNUM); LLVM_READOBJ_TYPE_CASE(VERSYM); + LLVM_READOBJ_TYPE_CASE(RELACOUNT); LLVM_READOBJ_TYPE_CASE(RELCOUNT); LLVM_READOBJ_TYPE_CASE(GNU_HASH); + LLVM_READOBJ_TYPE_CASE(TLSDESC_PLT); + LLVM_READOBJ_TYPE_CASE(TLSDESC_GOT); LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION); LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL); LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS); @@ -1444,6 +1646,7 @@ StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const { template <class ELFT> void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { raw_ostream &OS = W.getOStream(); + const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64; switch (Type) { case DT_PLTREL: if (Value == DT_REL) { @@ -1478,8 +1681,9 @@ void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { case DT_MIPS_RLD_MAP_REL: case DT_MIPS_PLTGOT: case DT_MIPS_OPTIONS: - OS << format("0x%" PRIX64, Value); + OS << format(ConvChar, Value); break; + case DT_RELACOUNT: case DT_RELCOUNT: case DT_VERDEFNUM: case DT_VERNEEDNUM: @@ -1521,7 +1725,7 @@ void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS); break; default: - OS << format("0x%" PRIX64, Value); + OS << format(ConvChar, Value); break; } } @@ -1545,8 +1749,8 @@ template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() { template<class ELFT> void ELFDumper<ELFT>::printDynamicTable() { - auto I = dynamic_table_begin(); - auto E = dynamic_table_end(); + auto I = dynamic_table().begin(); + auto E = dynamic_table().end(); if (I == E) return; @@ -1574,7 +1778,7 @@ void ELFDumper<ELFT>::printDynamicTable() { const Elf_Dyn &Entry = *I; uintX_t Tag = Entry.getTag(); ++I; - W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, true) << " " + W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " " << format("%-21s", getTypeString(Tag)); printValue(Tag, Entry.getVal()); OS << "\n"; @@ -1601,24 +1805,6 @@ void ELFDumper<ELFT>::printNeededLibraries() { } } -template<class ELFT> -void ELFDumper<ELFT>::printProgramHeaders() { - ListScope L(W, "ProgramHeaders"); - - for (const Elf_Phdr &Phdr : Obj->program_headers()) { - DictScope P(W, "ProgramHeader"); - W.printHex("Type", - getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type), - Phdr.p_type); - W.printHex("Offset", Phdr.p_offset); - W.printHex("VirtualAddress", Phdr.p_vaddr); - W.printHex("PhysicalAddress", Phdr.p_paddr); - W.printNumber("FileSize", Phdr.p_filesz); - W.printNumber("MemSize", Phdr.p_memsz); - W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags)); - W.printNumber("Alignment", Phdr.p_align); - } -} template <typename ELFT> void ELFDumper<ELFT>::printHashTable() { @@ -1642,10 +1828,11 @@ void ELFDumper<ELFT>::printGnuHashTable() { W.printNumber("Shift Count", GnuHashTable->shift2); W.printHexList("Bloom Filter", GnuHashTable->filter()); W.printList("Buckets", GnuHashTable->buckets()); - if (!DotDynSymSec) + Elf_Sym_Range Syms = dynamic_symbols(); + unsigned NumSyms = std::distance(Syms.begin(), Syms.end()); + if (!NumSyms) reportError("No dynamic symbol section"); - W.printHexList("Values", - GnuHashTable->values(DotDynSymSec->getEntityCount())); + W.printHexList("Values", GnuHashTable->values(NumSyms)); } template <typename ELFT> void ELFDumper<ELFT>::printLoadName() { @@ -1669,21 +1856,18 @@ template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() { if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES) continue; - ErrorOr<ArrayRef<uint8_t>> Contents = Obj->getSectionContents(&Sec); - if (!Contents) - continue; - - if ((*Contents)[0] != ARMBuildAttrs::Format_Version) { - errs() << "unrecognised FormatVersion: 0x" << utohexstr((*Contents)[0]) + ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec)); + if (Contents[0] != ARMBuildAttrs::Format_Version) { + errs() << "unrecognised FormatVersion: 0x" << utohexstr(Contents[0]) << '\n'; continue; } - W.printHex("FormatVersion", (*Contents)[0]); - if (Contents->size() == 1) + W.printHex("FormatVersion", Contents[0]); + if (Contents.size() == 1) continue; - ARMAttributeParser(W).Parse(*Contents); + ARMAttributeParser(W).Parse(Contents); } } } @@ -1700,7 +1884,7 @@ public: typedef typename ELFO::Elf_Rela Elf_Rela; MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj, - Elf_Dyn_Range DynTable, StreamWriter &W); + Elf_Dyn_Range DynTable, ScopedPrinter &W); void parseGOT(); void parsePLT(); @@ -1708,7 +1892,7 @@ public: private: ELFDumper<ELFT> *Dumper; const ELFO *Obj; - StreamWriter &W; + ScopedPrinter &W; llvm::Optional<uint64_t> DtPltGot; llvm::Optional<uint64_t> DtLocalGotNum; llvm::Optional<uint64_t> DtGotSym; @@ -1733,7 +1917,7 @@ private: template <class ELFT> MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj, - Elf_Dyn_Range DynTable, StreamWriter &W) + Elf_Dyn_Range DynTable, ScopedPrinter &W) : Dumper(Dumper), Obj(Obj), W(W) { for (const auto &Entry : DynTable) { switch (Entry.getTag()) { @@ -1773,44 +1957,33 @@ template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() { return; } - const Elf_Shdr *GOTShdr = findSectionByAddress(Obj, *DtPltGot); - if (!GOTShdr) { - W.startLine() << "There is no .got section in the file.\n"; - return; - } - - ErrorOr<ArrayRef<uint8_t>> GOT = Obj->getSectionContents(GOTShdr); - if (!GOT) { - W.startLine() << "The .got section is empty.\n"; - return; - } - - if (*DtLocalGotNum > getGOTTotal(*GOT)) { - W.startLine() << "MIPS_LOCAL_GOTNO exceeds a number of GOT entries.\n"; - return; - } - - const Elf_Shdr *DynSymSec = Dumper->getDotDynSymSec(); - ErrorOr<StringRef> StrTable = Obj->getStringTableForSymtab(*DynSymSec); - error(StrTable.getError()); - const Elf_Sym *DynSymBegin = Obj->symbol_begin(DynSymSec); - const Elf_Sym *DynSymEnd = Obj->symbol_end(DynSymSec); + StringRef StrTable = Dumper->getDynamicStringTable(); + const Elf_Sym *DynSymBegin = Dumper->dynamic_symbols().begin(); + const Elf_Sym *DynSymEnd = Dumper->dynamic_symbols().end(); std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd)); - if (*DtGotSym > DynSymTotal) { - W.startLine() << "MIPS_GOTSYM exceeds a number of dynamic symbols.\n"; - return; - } + if (*DtGotSym > DynSymTotal) + report_fatal_error("MIPS_GOTSYM exceeds a number of dynamic symbols"); std::size_t GlobalGotNum = DynSymTotal - *DtGotSym; - if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(*GOT)) { - W.startLine() << "Number of global GOT entries exceeds the size of GOT.\n"; + if (*DtLocalGotNum + GlobalGotNum == 0) { + W.startLine() << "GOT is empty.\n"; return; } - const GOTEntry *GotBegin = makeGOTIter(*GOT, 0); - const GOTEntry *GotLocalEnd = makeGOTIter(*GOT, *DtLocalGotNum); + const Elf_Shdr *GOTShdr = findNotEmptySectionByAddress(Obj, *DtPltGot); + if (!GOTShdr) + report_fatal_error("There is no not empty GOT section at 0x" + + Twine::utohexstr(*DtPltGot)); + + ArrayRef<uint8_t> GOT = unwrapOrError(Obj->getSectionContents(GOTShdr)); + + if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(GOT)) + report_fatal_error("Number of GOT entries exceeds the size of GOT section"); + + const GOTEntry *GotBegin = makeGOTIter(GOT, 0); + const GOTEntry *GotLocalEnd = makeGOTIter(GOT, *DtLocalGotNum); const GOTEntry *It = GotBegin; DictScope GS(W, "Primary GOT"); @@ -1842,16 +2015,16 @@ template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() { ListScope GS(W, "Global entries"); const GOTEntry *GotGlobalEnd = - makeGOTIter(*GOT, *DtLocalGotNum + GlobalGotNum); + makeGOTIter(GOT, *DtLocalGotNum + GlobalGotNum); const Elf_Sym *GotDynSym = DynSymBegin + *DtGotSym; for (; It != GotGlobalEnd; ++It) { DictScope D(W, "Entry"); - printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++, - *StrTable, true); + printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++, StrTable, + true); } } - std::size_t SpecGotNum = getGOTTotal(*GOT) - *DtLocalGotNum - GlobalGotNum; + std::size_t SpecGotNum = getGOTTotal(GOT) - *DtLocalGotNum - GlobalGotNum; W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum)); } @@ -1865,31 +2038,22 @@ template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() { return; } - const Elf_Shdr *PLTShdr = findSectionByAddress(Obj, *DtMipsPltGot); - if (!PLTShdr) { - W.startLine() << "There is no .got.plt section in the file.\n"; - return; - } - ErrorOr<ArrayRef<uint8_t>> PLT = Obj->getSectionContents(PLTShdr); - if (!PLT) { - W.startLine() << "The .got.plt section is empty.\n"; - return; - } + const Elf_Shdr *PLTShdr = findNotEmptySectionByAddress(Obj, *DtMipsPltGot); + if (!PLTShdr) + report_fatal_error("There is no not empty PLTGOT section at 0x " + + Twine::utohexstr(*DtMipsPltGot)); + ArrayRef<uint8_t> PLT = unwrapOrError(Obj->getSectionContents(PLTShdr)); - const Elf_Shdr *PLTRelShdr = findSectionByAddress(Obj, *DtJmpRel); - if (!PLTShdr) { - W.startLine() << "There is no .rel.plt section in the file.\n"; - return; - } - ErrorOr<const Elf_Shdr *> SymTableOrErr = - Obj->getSection(PLTRelShdr->sh_link); - error(SymTableOrErr.getError()); - const Elf_Shdr *SymTable = *SymTableOrErr; - ErrorOr<StringRef> StrTable = Obj->getStringTableForSymtab(*SymTable); - error(StrTable.getError()); + const Elf_Shdr *PLTRelShdr = findNotEmptySectionByAddress(Obj, *DtJmpRel); + if (!PLTRelShdr) + report_fatal_error("There is no not empty RELPLT section at 0x" + + Twine::utohexstr(*DtJmpRel)); + const Elf_Shdr *SymTable = + unwrapOrError(Obj->getSection(PLTRelShdr->sh_link)); + StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTable)); - const GOTEntry *PLTBegin = makeGOTIter(*PLT, 0); - const GOTEntry *PLTEnd = makeGOTIter(*PLT, getGOTTotal(*PLT)); + const GOTEntry *PLTBegin = makeGOTIter(PLT, 0); + const GOTEntry *PLTEnd = makeGOTIter(PLT, getGOTTotal(PLT)); const GOTEntry *It = PLTBegin; DictScope GS(W, "PLT GOT"); @@ -1908,7 +2072,7 @@ template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() { *RE = Obj->rel_end(PLTRelShdr); RI != RE && It != PLTEnd; ++RI, ++It) { const Elf_Sym *Sym = Obj->getRelocationSymbol(&*RI, SymTable); - printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, *StrTable, Sym); + printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym); } break; case ELF::SHT_RELA: @@ -1916,7 +2080,7 @@ template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() { *RE = Obj->rela_end(PLTRelShdr); RI != RE && It != PLTEnd; ++RI, ++It) { const Elf_Sym *Sym = Obj->getRelocationSymbol(&*RI, SymTable); - printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, *StrTable, Sym); + printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym); } break; } @@ -1956,7 +2120,7 @@ void MipsGOTParser<ELFT>::printGlobalGotEntry( unsigned SectionIndex = 0; StringRef SectionName; - getSectionNameIndex(*Obj, Sym, Dumper->getDotDynSymSec(), + getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(), Dumper->getShndxTable(), SectionName, SectionIndex); W.printHex("Section", SectionName, SectionIndex); @@ -1990,7 +2154,7 @@ void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr, unsigned SectionIndex = 0; StringRef SectionName; - getSectionNameIndex(*Obj, Sym, Dumper->getDotDynSymSec(), + getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(), Dumper->getShndxTable(), SectionName, SectionIndex); W.printHex("Section", SectionName, SectionIndex); @@ -2086,17 +2250,13 @@ template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { W.startLine() << "There is no .MIPS.abiflags section in the file.\n"; return; } - ErrorOr<ArrayRef<uint8_t>> Sec = Obj->getSectionContents(Shdr); - if (!Sec) { - W.startLine() << "The .MIPS.abiflags section is empty.\n"; - return; - } - if (Sec->size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) { + ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); + if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) { W.startLine() << "The .MIPS.abiflags section has a wrong size.\n"; return; } - auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec->data()); + auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data()); raw_ostream &OS = W.getOStream(); DictScope GS(W, "MIPS ABI Flags"); @@ -2118,38 +2278,68 @@ template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { W.printHex("Flags 2", Flags->flags2); } +template <class ELFT> +static void printMipsReginfoData(ScopedPrinter &W, + const Elf_Mips_RegInfo<ELFT> &Reginfo) { + W.printHex("GP", Reginfo.ri_gp_value); + W.printHex("General Mask", Reginfo.ri_gprmask); + W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]); + W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]); + W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]); + W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]); +} + template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() { const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo"); if (!Shdr) { W.startLine() << "There is no .reginfo section in the file.\n"; return; } - ErrorOr<ArrayRef<uint8_t>> Sec = Obj->getSectionContents(Shdr); - if (!Sec) { - W.startLine() << "The .reginfo section is empty.\n"; + ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); + if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) { + W.startLine() << "The .reginfo section has a wrong size.\n"; return; } - if (Sec->size() != sizeof(Elf_Mips_RegInfo<ELFT>)) { - W.startLine() << "The .reginfo section has a wrong size.\n"; + + DictScope GS(W, "MIPS RegInfo"); + auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data()); + printMipsReginfoData(W, *Reginfo); +} + +template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() { + const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options"); + if (!Shdr) { + W.startLine() << "There is no .MIPS.options section in the file.\n"; return; } - auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec->data()); + DictScope GS(W, "MIPS Options"); - DictScope GS(W, "MIPS RegInfo"); - W.printHex("GP", Reginfo->ri_gp_value); - W.printHex("General Mask", Reginfo->ri_gprmask); - W.printHex("Co-Proc Mask0", Reginfo->ri_cprmask[0]); - W.printHex("Co-Proc Mask1", Reginfo->ri_cprmask[1]); - W.printHex("Co-Proc Mask2", Reginfo->ri_cprmask[2]); - W.printHex("Co-Proc Mask3", Reginfo->ri_cprmask[3]); + ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); + while (!Sec.empty()) { + if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) { + W.startLine() << "The .MIPS.options section has a wrong size.\n"; + return; + } + auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data()); + DictScope GS(W, getElfMipsOptionsOdkType(O->kind)); + switch (O->kind) { + case ODK_REGINFO: + printMipsReginfoData(W, O->getRegInfo()); + break; + default: + W.startLine() << "Unsupported MIPS options tag.\n"; + break; + } + Sec = Sec.slice(O->size); + } } template <class ELFT> void ELFDumper<ELFT>::printStackMap() const { const Elf_Shdr *StackMapSection = nullptr; for (const auto &Sec : Obj->sections()) { - ErrorOr<StringRef> Name = Obj->getSectionName(&Sec); - if (*Name == ".llvm_stackmaps") { + StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); + if (Name == ".llvm_stackmaps") { StackMapSection = &Sec; break; } @@ -2159,10 +2349,1184 @@ template <class ELFT> void ELFDumper<ELFT>::printStackMap() const { return; StringRef StackMapContents; - ErrorOr<ArrayRef<uint8_t>> StackMapContentsArray = - Obj->getSectionContents(StackMapSection); + ArrayRef<uint8_t> StackMapContentsArray = + unwrapOrError(Obj->getSectionContents(StackMapSection)); + + prettyPrintStackMap(llvm::outs(), StackMapV1Parser<ELFT::TargetEndianness>( + StackMapContentsArray)); +} + +template <class ELFT> void ELFDumper<ELFT>::printGroupSections() { + ELFDumperStyle->printGroupSections(Obj); +} + +static inline void printFields(formatted_raw_ostream &OS, StringRef Str1, + StringRef Str2) { + OS.PadToColumn(2u); + OS << Str1; + OS.PadToColumn(37u); + OS << Str2 << "\n"; + OS.flush(); +} + +template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) { + const Elf_Ehdr *e = Obj->getHeader(); + OS << "ELF Header:\n"; + OS << " Magic: "; + std::string Str; + for (int i = 0; i < ELF::EI_NIDENT; i++) + OS << format(" %02x", static_cast<int>(e->e_ident[i])); + OS << "\n"; + Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); + printFields(OS, "Class:", Str); + Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding)); + printFields(OS, "Data:", Str); + OS.PadToColumn(2u); + OS << "Version:"; + OS.PadToColumn(37u); + OS << to_hexString(e->e_ident[ELF::EI_VERSION]); + if (e->e_version == ELF::EV_CURRENT) + OS << " (current)"; + OS << "\n"; + Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI)); + printFields(OS, "OS/ABI:", Str); + Str = "0x" + to_hexString(e->e_version); + Str = to_hexString(e->e_ident[ELF::EI_ABIVERSION]); + printFields(OS, "ABI Version:", Str); + Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType)); + printFields(OS, "Type:", Str); + Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType)); + printFields(OS, "Machine:", Str); + Str = "0x" + to_hexString(e->e_version); + printFields(OS, "Version:", Str); + Str = "0x" + to_hexString(e->e_entry); + printFields(OS, "Entry point address:", Str); + Str = to_string(e->e_phoff) + " (bytes into file)"; + printFields(OS, "Start of program headers:", Str); + Str = to_string(e->e_shoff) + " (bytes into file)"; + printFields(OS, "Start of section headers:", Str); + Str = "0x" + to_hexString(e->e_flags); + printFields(OS, "Flags:", Str); + Str = to_string(e->e_ehsize) + " (bytes)"; + printFields(OS, "Size of this header:", Str); + Str = to_string(e->e_phentsize) + " (bytes)"; + printFields(OS, "Size of program headers:", Str); + Str = to_string(e->e_phnum); + printFields(OS, "Number of program headers:", Str); + Str = to_string(e->e_shentsize) + " (bytes)"; + printFields(OS, "Size of section headers:", Str); + Str = to_string(e->e_shnum); + printFields(OS, "Number of section headers:", Str); + Str = to_string(e->e_shstrndx); + printFields(OS, "Section header string table index:", Str); +} + +template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) { + uint32_t SectionIndex = 0; + bool HasGroups = false; + for (const Elf_Shdr &Sec : Obj->sections()) { + if (Sec.sh_type == ELF::SHT_GROUP) { + HasGroups = true; + const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); + StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); + const Elf_Sym *Signature = + Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info); + ArrayRef<Elf_Word> Data = unwrapOrError( + Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); + StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); + OS << "\n" << getGroupType(Data[0]) << " group section [" + << format_decimal(SectionIndex, 5) << "] `" << Name << "' [" + << StrTable.data() + Signature->st_name << "] contains " + << (Data.size() - 1) << " sections:\n" + << " [Index] Name\n"; + for (auto &Ndx : Data.slice(1)) { + auto Sec = unwrapOrError(Obj->getSection(Ndx)); + const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); + OS << " [" << format_decimal(Ndx, 5) << "] " << Name + << "\n"; + } + } + ++SectionIndex; + } + if (!HasGroups) + OS << "There are no section groups in this file.\n"; +} + +template <class ELFT> +void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, + const Elf_Rela &R, bool IsRela) { + std::string Offset, Info, Addend = "", Value; + SmallString<32> RelocName; + StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); + StringRef TargetName; + const Elf_Sym *Sym = nullptr; + unsigned Width = ELFT::Is64Bits ? 16 : 8; + unsigned Bias = ELFT::Is64Bits ? 8 : 0; + + // First two fields are bit width dependent. The rest of them are after are + // fixed width. + Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; + Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); + Sym = Obj->getRelocationSymbol(&R, SymTab); + if (Sym && Sym->getType() == ELF::STT_SECTION) { + const Elf_Shdr *Sec = unwrapOrError( + Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); + TargetName = unwrapOrError(Obj->getSectionName(Sec)); + } else if (Sym) { + TargetName = unwrapOrError(Sym->getName(StrTable)); + } + + if (Sym && IsRela) { + if (R.r_addend < 0) + Addend = " - "; + else + Addend = " + "; + } + + Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); + Info = to_string(format_hex_no_prefix(R.r_info, Width)); + + int64_t RelAddend = R.r_addend; + if (IsRela) + Addend += to_hexString(std::abs(RelAddend), false); + + if (Sym) + Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); + + Fields[0].Str = Offset; + Fields[1].Str = Info; + Fields[2].Str = RelocName; + Fields[3].Str = Value; + Fields[4].Str = TargetName; + for (auto &field : Fields) + printField(field); + OS << Addend; + OS << "\n"; +} + +static inline void printRelocHeader(raw_ostream &OS, bool Is64, bool IsRela) { + if (Is64) + OS << " Offset Info Type" + << " Symbol's Value Symbol's Name"; + else + OS << " Offset Info Type Sym. Value " + << "Symbol's Name"; + if (IsRela) + OS << (IsRela ? " + Addend" : ""); + OS << "\n"; +} + +template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) { + bool HasRelocSections = false; + for (const Elf_Shdr &Sec : Obj->sections()) { + if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA) + continue; + HasRelocSections = true; + StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); + unsigned Entries = Sec.getEntityCount(); + uintX_t Offset = Sec.sh_offset; + OS << "\nRelocation section '" << Name << "' at offset 0x" + << to_hexString(Offset, false) << " contains " << Entries + << " entries:\n"; + printRelocHeader(OS, ELFT::Is64Bits, (Sec.sh_type == ELF::SHT_RELA)); + const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link)); + if (Sec.sh_type == ELF::SHT_REL) { + for (const auto &R : Obj->rels(&Sec)) { + Elf_Rela Rela; + Rela.r_offset = R.r_offset; + Rela.r_info = R.r_info; + Rela.r_addend = 0; + printRelocation(Obj, SymTab, Rela, false); + } + } else { + for (const auto &R : Obj->relas(&Sec)) + printRelocation(Obj, SymTab, R, true); + } + } + if (!HasRelocSections) + OS << "\nThere are no relocations in this file.\n"; +} + +std::string getSectionTypeString(unsigned Arch, unsigned Type) { + using namespace ELF; + switch (Arch) { + case EM_ARM: + switch (Type) { + case SHT_ARM_EXIDX: + return "ARM_EXIDX"; + case SHT_ARM_PREEMPTMAP: + return "ARM_PREEMPTMAP"; + case SHT_ARM_ATTRIBUTES: + return "ARM_ATTRIBUTES"; + case SHT_ARM_DEBUGOVERLAY: + return "ARM_DEBUGOVERLAY"; + case SHT_ARM_OVERLAYSECTION: + return "ARM_OVERLAYSECTION"; + } + case EM_X86_64: + switch (Type) { + case SHT_X86_64_UNWIND: + return "X86_64_UNWIND"; + } + case EM_MIPS: + case EM_MIPS_RS3_LE: + switch (Type) { + case SHT_MIPS_REGINFO: + return "MIPS_REGINFO"; + case SHT_MIPS_OPTIONS: + return "MIPS_OPTIONS"; + case SHT_MIPS_ABIFLAGS: + return "MIPS_ABIFLAGS"; + } + } + switch (Type) { + case SHT_NULL: + return "NULL"; + case SHT_PROGBITS: + return "PROGBITS"; + case SHT_SYMTAB: + return "SYMTAB"; + case SHT_STRTAB: + return "STRTAB"; + case SHT_RELA: + return "RELA"; + case SHT_HASH: + return "HASH"; + case SHT_DYNAMIC: + return "DYNAMIC"; + case SHT_NOTE: + return "NOTE"; + case SHT_NOBITS: + return "NOBITS"; + case SHT_REL: + return "REL"; + case SHT_SHLIB: + return "SHLIB"; + case SHT_DYNSYM: + return "DYNSYM"; + case SHT_INIT_ARRAY: + return "INIT_ARRAY"; + case SHT_FINI_ARRAY: + return "FINI_ARRAY"; + case SHT_PREINIT_ARRAY: + return "PREINIT_ARRAY"; + case SHT_GROUP: + return "GROUP"; + case SHT_SYMTAB_SHNDX: + return "SYMTAB SECTION INDICES"; + // FIXME: Parse processor specific GNU attributes + case SHT_GNU_ATTRIBUTES: + return "ATTRIBUTES"; + case SHT_GNU_HASH: + return "GNU_HASH"; + case SHT_GNU_verdef: + return "VERDEF"; + case SHT_GNU_verneed: + return "VERNEED"; + case SHT_GNU_versym: + return "VERSYM"; + default: + return ""; + } + return ""; +} + +template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) { + size_t SectionIndex = 0; + std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize, + Alignment; + unsigned Bias; + unsigned Width; + + if (ELFT::Is64Bits) { + Bias = 0; + Width = 16; + } else { + Bias = 8; + Width = 8; + } + OS << "There are " << to_string(Obj->getHeader()->e_shnum) + << " section headers, starting at offset " + << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n"; + OS << "Section Headers:\n"; + Field Fields[11] = {{"[Nr]", 2}, + {"Name", 7}, + {"Type", 25}, + {"Address", 41}, + {"Off", 58 - Bias}, + {"Size", 65 - Bias}, + {"ES", 72 - Bias}, + {"Flg", 75 - Bias}, + {"Lk", 79 - Bias}, + {"Inf", 82 - Bias}, + {"Al", 86 - Bias}}; + for (auto &f : Fields) + printField(f); + OS << "\n"; + + for (const Elf_Shdr &Sec : Obj->sections()) { + Number = to_string(SectionIndex); + Fields[0].Str = Number; + Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec)); + Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type); + Fields[2].Str = Type; + Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width)); + Fields[3].Str = Address; + Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6)); + Fields[4].Str = Offset; + Size = to_string(format_hex_no_prefix(Sec.sh_size, 6)); + Fields[5].Str = Size; + EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2)); + Fields[6].Str = EntrySize; + Flags = getGNUFlags(Sec.sh_flags); + Fields[7].Str = Flags; + Link = to_string(Sec.sh_link); + Fields[8].Str = Link; + Info = to_string(Sec.sh_info); + Fields[9].Str = Info; + Alignment = to_string(Sec.sh_addralign); + Fields[10].Str = Alignment; + OS.PadToColumn(Fields[0].Column); + OS << "[" << right_justify(Fields[0].Str, 2) << "]"; + for (int i = 1; i < 7; i++) + printField(Fields[i]); + OS.PadToColumn(Fields[7].Column); + OS << right_justify(Fields[7].Str, 3); + OS.PadToColumn(Fields[8].Column); + OS << right_justify(Fields[8].Str, 2); + OS.PadToColumn(Fields[9].Column); + OS << right_justify(Fields[9].Str, 3); + OS.PadToColumn(Fields[10].Column); + OS << right_justify(Fields[10].Str, 2); + OS << "\n"; + ++SectionIndex; + } + OS << "Key to Flags:\n" + << " W (write), A (alloc), X (execute), M (merge), S (strings), l " + "(large)\n" + << " I (info), L (link order), G (group), T (TLS), E (exclude),\ + x (unknown)\n" + << " O (extra OS processing required) o (OS specific),\ + p (processor specific)\n"; +} + +template <class ELFT> +void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name, + size_t Entries) { + if (Name.size()) + OS << "\nSymbol table '" << Name << "' contains " << Entries + << " entries:\n"; + else + OS << "\n Symbol table for image:\n"; + + if (ELFT::Is64Bits) + OS << " Num: Value Size Type Bind Vis Ndx Name\n"; + else + OS << " Num: Value Size Type Bind Vis Ndx Name\n"; +} + +template <class ELFT> +std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj, + const Elf_Sym *Symbol, + const Elf_Sym *FirstSym) { + unsigned SectionIndex = Symbol->st_shndx; + switch (SectionIndex) { + case ELF::SHN_UNDEF: + return "UND"; + case ELF::SHN_ABS: + return "ABS"; + case ELF::SHN_COMMON: + return "COM"; + case ELF::SHN_XINDEX: + SectionIndex = Obj->getExtendedSymbolTableIndex( + Symbol, FirstSym, this->dumper()->getShndxTable()); + default: + // Find if: + // Processor specific + if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC) + return std::string("PRC[0x") + + to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; + // OS specific + if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS) + return std::string("OS[0x") + + to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; + // Architecture reserved: + if (SectionIndex >= ELF::SHN_LORESERVE && + SectionIndex <= ELF::SHN_HIRESERVE) + return std::string("RSV[0x") + + to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; + // A normal section with an index + return to_string(format_decimal(SectionIndex, 3)); + } +} + +template <class ELFT> +void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, + const Elf_Sym *FirstSym, StringRef StrTable, + bool IsDynamic) { + static int Idx = 0; + static bool Dynamic = true; + size_t Width; + + // If this function was called with a different value from IsDynamic + // from last call, happens when we move from dynamic to static symbol + // table, "Num" field should be reset. + if (!Dynamic != !IsDynamic) { + Idx = 0; + Dynamic = false; + } + std::string Num, Name, Value, Size, Binding, Type, Visibility, Section; + unsigned Bias = 0; + if (ELFT::Is64Bits) { + Bias = 8; + Width = 16; + } else { + Bias = 0; + Width = 8; + } + Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias, + 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias}; + Num = to_string(format_decimal(Idx++, 6)) + ":"; + Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); + Size = to_string(format_decimal(Symbol->st_size, 5)); + unsigned char SymbolType = Symbol->getType(); + if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && + SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) + Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); + else + Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); + unsigned Vis = Symbol->getVisibility(); + Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); + Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); + Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); + Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); + Fields[0].Str = Num; + Fields[1].Str = Value; + Fields[2].Str = Size; + Fields[3].Str = Type; + Fields[4].Str = Binding; + Fields[5].Str = Visibility; + Fields[6].Str = Section; + Fields[7].Str = Name; + for (auto &Entry : Fields) + printField(Entry); + OS << "\n"; +} + +template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) { + this->dumper()->printSymbolsHelper(true); + this->dumper()->printSymbolsHelper(false); +} + +template <class ELFT> +void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { + this->dumper()->printSymbolsHelper(true); +} + +static inline std::string printPhdrFlags(unsigned Flag) { + std::string Str; + Str = (Flag & PF_R) ? "R" : " "; + Str += (Flag & PF_W) ? "W" : " "; + Str += (Flag & PF_X) ? "E" : " "; + return Str; +} + +// SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO +// PT_TLS must only have SHF_TLS sections +template <class ELFT> +bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr, + const Elf_Shdr &Sec) { + return (((Sec.sh_flags & ELF::SHF_TLS) && + ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) || + (Phdr.p_type == ELF::PT_GNU_RELRO))) || + (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS)); +} + +// Non-SHT_NOBITS must have its offset inside the segment +// Only non-zero section can be at end of segment +template <class ELFT> +bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { + if (Sec.sh_type == ELF::SHT_NOBITS) + return true; + bool IsSpecial = + (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); + // .tbss is special, it only has memory in PT_TLS and has NOBITS properties + auto SectionSize = + (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; + if (Sec.sh_offset >= Phdr.p_offset) + return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset) + /*only non-zero sized sections at end*/ && + (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz)); + return false; +} + +// SHF_ALLOC must have VMA inside segment +// Only non-zero section can be at end of segment +template <class ELFT> +bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { + if (!(Sec.sh_flags & ELF::SHF_ALLOC)) + return true; + bool IsSpecial = + (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); + // .tbss is special, it only has memory in PT_TLS and has NOBITS properties + auto SectionSize = + (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; + if (Sec.sh_addr >= Phdr.p_vaddr) + return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) && + (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz)); + return false; +} + +// No section with zero size must be at start or end of PT_DYNAMIC +template <class ELFT> +bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { + if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0) + return true; + // Is section within the phdr both based on offset and VMA ? + return ((Sec.sh_type == ELF::SHT_NOBITS) || + (Sec.sh_offset > Phdr.p_offset && + Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) && + (!(Sec.sh_flags & ELF::SHF_ALLOC) || + (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz)); +} + +template <class ELFT> +void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { + unsigned Bias = ELFT::Is64Bits ? 8 : 0; + unsigned Width = ELFT::Is64Bits ? 18 : 10; + unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7; + std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align; + + const Elf_Ehdr *Header = Obj->getHeader(); + Field Fields[8] = {2, 17, 26, 37 + Bias, + 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias}; + OS << "\nElf file type is " + << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n" + << "Entry point " << format_hex(Header->e_entry, 3) << "\n" + << "There are " << Header->e_phnum << " program headers," + << " starting at offset " << Header->e_phoff << "\n\n" + << "Program Headers:\n"; + if (ELFT::Is64Bits) + OS << " Type Offset VirtAddr PhysAddr " + << " FileSiz MemSiz Flg Align\n"; + else + OS << " Type Offset VirtAddr PhysAddr FileSiz " + << "MemSiz Flg Align\n"; + for (const auto &Phdr : Obj->program_headers()) { + Type = getElfPtType(Header->e_machine, Phdr.p_type); + Offset = to_string(format_hex(Phdr.p_offset, 8)); + VMA = to_string(format_hex(Phdr.p_vaddr, Width)); + LMA = to_string(format_hex(Phdr.p_paddr, Width)); + FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth)); + MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth)); + Flag = printPhdrFlags(Phdr.p_flags); + Align = to_string(format_hex(Phdr.p_align, 1)); + Fields[0].Str = Type; + Fields[1].Str = Offset; + Fields[2].Str = VMA; + Fields[3].Str = LMA; + Fields[4].Str = FileSz; + Fields[5].Str = MemSz; + Fields[6].Str = Flag; + Fields[7].Str = Align; + for (auto Field : Fields) + printField(Field); + if (Phdr.p_type == ELF::PT_INTERP) { + OS << "\n [Requesting program interpreter: "; + OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]"; + } + OS << "\n"; + } + OS << "\n Section to Segment mapping:\n Segment Sections...\n"; + int Phnum = 0; + for (const Elf_Phdr &Phdr : Obj->program_headers()) { + std::string Sections; + OS << format(" %2.2d ", Phnum++); + for (const Elf_Shdr &Sec : Obj->sections()) { + // Check if each section is in a segment and then print mapping. + // readelf additionally makes sure it does not print zero sized sections + // at end of segments and for PT_DYNAMIC both start and end of section + // .tbss must only be shown in PT_TLS section. + bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) && + ((Sec.sh_flags & ELF::SHF_TLS) != 0) && + Phdr.p_type != ELF::PT_TLS; + if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) && + checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) && + checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) + Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " "; + } + OS << Sections << "\n"; + OS.flush(); + } +} + +template <class ELFT> +void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R, + bool IsRela) { + SmallString<32> RelocName; + StringRef SymbolName; + unsigned Width = ELFT::Is64Bits ? 16 : 8; + unsigned Bias = ELFT::Is64Bits ? 8 : 0; + // First two fields are bit width dependent. The rest of them are after are + // fixed width. + Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; + + uint32_t SymIndex = R.getSymbol(Obj->isMips64EL()); + const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; + Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); + SymbolName = + unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); + std::string Addend = "", Info, Offset, Value; + Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); + Info = to_string(format_hex_no_prefix(R.r_info, Width)); + Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); + int64_t RelAddend = R.r_addend; + if (SymbolName.size() && IsRela) { + if (R.r_addend < 0) + Addend = " - "; + else + Addend = " + "; + } + + if (!SymbolName.size() && Sym->getValue() == 0) + Value = ""; + + if (IsRela) + Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1)); + + + Fields[0].Str = Offset; + Fields[1].Str = Info; + Fields[2].Str = RelocName.c_str(); + Fields[3].Str = Value; + Fields[4].Str = SymbolName; + for (auto &Field : Fields) + printField(Field); + OS << Addend; + OS << "\n"; +} + +template <class ELFT> +void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { + const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); + const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); + const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); + if (DynRelaRegion.Size > 0) { + OS << "\n'RELA' relocation section at offset " + << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) - + Obj->base(), + 1) << " contains " << DynRelaRegion.Size << " bytes:\n"; + printRelocHeader(OS, ELFT::Is64Bits, true); + for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) + printDynamicRelocation(Obj, Rela, true); + } + if (DynRelRegion.Size > 0) { + OS << "\n'REL' relocation section at offset " + << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) - + Obj->base(), + 1) << " contains " << DynRelRegion.Size << " bytes:\n"; + printRelocHeader(OS, ELFT::Is64Bits, false); + for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { + Elf_Rela Rela; + Rela.r_offset = Rel.r_offset; + Rela.r_info = Rel.r_info; + Rela.r_addend = 0; + printDynamicRelocation(Obj, Rela, false); + } + } + if (DynPLTRelRegion.Size) { + OS << "\n'PLT' relocation section at offset " + << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) - + Obj->base(), + 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n"; + } + if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) { + printRelocHeader(OS, ELFT::Is64Bits, true); + for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) + printDynamicRelocation(Obj, Rela, true); + } else { + printRelocHeader(OS, ELFT::Is64Bits, false); + for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { + Elf_Rela Rela; + Rela.r_offset = Rel.r_offset; + Rela.r_info = Rel.r_info; + Rela.r_addend = 0; + printDynamicRelocation(Obj, Rela, false); + } + } +} + +// Hash histogram shows statistics of how efficient the hash was for the +// dynamic symbol table. The table shows number of hash buckets for different +// lengths of chains as absolute number and percentage of the total buckets. +// Additionally cumulative coverage of symbols for each set of buckets. +template <class ELFT> +void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { + + const Elf_Hash *HashTable = this->dumper()->getHashTable(); + const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable(); + + // Print histogram for .hash section + if (HashTable) { + size_t NBucket = HashTable->nbucket; + size_t NChain = HashTable->nchain; + ArrayRef<Elf_Word> Buckets = HashTable->buckets(); + ArrayRef<Elf_Word> Chains = HashTable->chains(); + size_t TotalSyms = 0; + // If hash table is correct, we have at least chains with 0 length + size_t MaxChain = 1; + size_t CumulativeNonZero = 0; + + if (NChain == 0 || NBucket == 0) + return; + + std::vector<size_t> ChainLen(NBucket, 0); + // Go over all buckets and and note chain lengths of each bucket (total + // unique chain lengths). + for (size_t B = 0; B < NBucket; B++) { + for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C]) + if (MaxChain <= ++ChainLen[B]) + MaxChain++; + TotalSyms += ChainLen[B]; + } + + if (!TotalSyms) + return; + + std::vector<size_t> Count(MaxChain, 0) ; + // Count how long is the chain for each bucket + for (size_t B = 0; B < NBucket; B++) + ++Count[ChainLen[B]]; + // Print Number of buckets with each chain lengths and their cumulative + // coverage of the symbols + OS << "Histogram for bucket list length (total of " << NBucket + << " buckets)\n" + << " Length Number % of total Coverage\n"; + for (size_t I = 0; I < MaxChain; I++) { + CumulativeNonZero += Count[I] * I; + OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], + (Count[I] * 100.0) / NBucket, + (CumulativeNonZero * 100.0) / TotalSyms); + } + } + + // Print histogram for .gnu.hash section + if (GnuHashTable) { + size_t NBucket = GnuHashTable->nbuckets; + ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets(); + unsigned NumSyms = this->dumper()->dynamic_symbols().size(); + if (!NumSyms) + return; + ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms); + size_t Symndx = GnuHashTable->symndx; + size_t TotalSyms = 0; + size_t MaxChain = 1; + size_t CumulativeNonZero = 0; + + if (Chains.size() == 0 || NBucket == 0) + return; + + std::vector<size_t> ChainLen(NBucket, 0); + + for (size_t B = 0; B < NBucket; B++) { + if (!Buckets[B]) + continue; + size_t Len = 1; + for (size_t C = Buckets[B] - Symndx; + C < Chains.size() && (Chains[C] & 1) == 0; C++) + if (MaxChain < ++Len) + MaxChain++; + ChainLen[B] = Len; + TotalSyms += Len; + } + MaxChain++; + + if (!TotalSyms) + return; + + std::vector<size_t> Count(MaxChain, 0) ; + for (size_t B = 0; B < NBucket; B++) + ++Count[ChainLen[B]]; + // Print Number of buckets with each chain lengths and their cumulative + // coverage of the symbols + OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket + << " buckets)\n" + << " Length Number % of total Coverage\n"; + for (size_t I = 0; I <MaxChain; I++) { + CumulativeNonZero += Count[I] * I; + OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], + (Count[I] * 100.0) / NBucket, + (CumulativeNonZero * 100.0) / TotalSyms); + } + } +} + +template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) { + const Elf_Ehdr *e = Obj->getHeader(); + { + DictScope D(W, "ElfHeader"); + { + DictScope D(W, "Ident"); + W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4)); + W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); + W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA], + makeArrayRef(ElfDataEncoding)); + W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]); + + // Handle architecture specific OS/ABI values. + if (e->e_machine == ELF::EM_AMDGPU && + e->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA) + W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA); + else + W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI], + makeArrayRef(ElfOSABI)); + W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]); + W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD)); + } + + W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType)); + W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType)); + W.printNumber("Version", e->e_version); + W.printHex("Entry", e->e_entry); + W.printHex("ProgramHeaderOffset", e->e_phoff); + W.printHex("SectionHeaderOffset", e->e_shoff); + if (e->e_machine == EM_MIPS) + W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags), + unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), + unsigned(ELF::EF_MIPS_MACH)); + else + W.printFlags("Flags", e->e_flags); + W.printNumber("HeaderSize", e->e_ehsize); + W.printNumber("ProgramHeaderEntrySize", e->e_phentsize); + W.printNumber("ProgramHeaderCount", e->e_phnum); + W.printNumber("SectionHeaderEntrySize", e->e_shentsize); + W.printNumber("SectionHeaderCount", e->e_shnum); + W.printNumber("StringTableSectionIndex", e->e_shstrndx); + } +} + +template <class ELFT> +void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) { + DictScope Lists(W, "Groups"); + uint32_t SectionIndex = 0; + bool HasGroups = false; + for (const Elf_Shdr &Sec : Obj->sections()) { + if (Sec.sh_type == ELF::SHT_GROUP) { + HasGroups = true; + const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); + StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); + const Elf_Sym *Sym = Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info); + auto Data = unwrapOrError( + Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); + DictScope D(W, "Group"); + StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); + W.printNumber("Name", Name, Sec.sh_name); + W.printNumber("Index", SectionIndex); + W.printHex("Type", getGroupType(Data[0]), Data[0]); + W.startLine() << "Signature: " << StrTable.data() + Sym->st_name << "\n"; + { + ListScope L(W, "Section(s) in group"); + size_t Member = 1; + while (Member < Data.size()) { + auto Sec = unwrapOrError(Obj->getSection(Data[Member])); + const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); + W.startLine() << Name << " (" << Data[Member++] << ")\n"; + } + } + } + ++SectionIndex; + } + if (!HasGroups) + W.startLine() << "There are no group sections in the file.\n"; +} + +template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) { + ListScope D(W, "Relocations"); + + int SectionNumber = -1; + for (const Elf_Shdr &Sec : Obj->sections()) { + ++SectionNumber; + + if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA) + continue; + + StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); + + W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; + W.indent(); + + printRelocations(&Sec, Obj); + + W.unindent(); + W.startLine() << "}\n"; + } +} + +template <class ELFT> +void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) { + const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); + + switch (Sec->sh_type) { + case ELF::SHT_REL: + for (const Elf_Rel &R : Obj->rels(Sec)) { + Elf_Rela Rela; + Rela.r_offset = R.r_offset; + Rela.r_info = R.r_info; + Rela.r_addend = 0; + printRelocation(Obj, Rela, SymTab); + } + break; + case ELF::SHT_RELA: + for (const Elf_Rela &R : Obj->relas(Sec)) + printRelocation(Obj, R, SymTab); + break; + } +} + +template <class ELFT> +void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel, + const Elf_Shdr *SymTab) { + SmallString<32> RelocName; + Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); + StringRef TargetName; + const Elf_Sym *Sym = Obj->getRelocationSymbol(&Rel, SymTab); + if (Sym && Sym->getType() == ELF::STT_SECTION) { + const Elf_Shdr *Sec = unwrapOrError( + Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); + TargetName = unwrapOrError(Obj->getSectionName(Sec)); + } else if (Sym) { + StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); + TargetName = unwrapOrError(Sym->getName(StrTable)); + } + + if (opts::ExpandRelocs) { + DictScope Group(W, "Relocation"); + W.printHex("Offset", Rel.r_offset); + W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); + W.printNumber("Symbol", TargetName.size() > 0 ? TargetName : "-", + Rel.getSymbol(Obj->isMips64EL())); + W.printHex("Addend", Rel.r_addend); + } else { + raw_ostream &OS = W.startLine(); + OS << W.hex(Rel.r_offset) << " " << RelocName << " " + << (TargetName.size() > 0 ? TargetName : "-") << " " + << W.hex(Rel.r_addend) << "\n"; + } +} + +template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) { + ListScope SectionsD(W, "Sections"); + + int SectionIndex = -1; + for (const Elf_Shdr &Sec : Obj->sections()) { + ++SectionIndex; + + StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); + + DictScope SectionD(W, "Section"); + W.printNumber("Index", SectionIndex); + W.printNumber("Name", Name, Sec.sh_name); + W.printHex("Type", + getElfSectionType(Obj->getHeader()->e_machine, Sec.sh_type), + Sec.sh_type); + std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags), + std::end(ElfSectionFlags)); + switch (Obj->getHeader()->e_machine) { + case EM_AMDGPU: + SectionFlags.insert(SectionFlags.end(), std::begin(ElfAMDGPUSectionFlags), + std::end(ElfAMDGPUSectionFlags)); + break; + case EM_HEXAGON: + SectionFlags.insert(SectionFlags.end(), + std::begin(ElfHexagonSectionFlags), + std::end(ElfHexagonSectionFlags)); + break; + case EM_MIPS: + SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags), + std::end(ElfMipsSectionFlags)); + break; + case EM_X86_64: + SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags), + std::end(ElfX86_64SectionFlags)); + break; + case EM_XCORE: + SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags), + std::end(ElfXCoreSectionFlags)); + break; + default: + // Nothing to do. + break; + } + W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags)); + W.printHex("Address", Sec.sh_addr); + W.printHex("Offset", Sec.sh_offset); + W.printNumber("Size", Sec.sh_size); + W.printNumber("Link", Sec.sh_link); + W.printNumber("Info", Sec.sh_info); + W.printNumber("AddressAlignment", Sec.sh_addralign); + W.printNumber("EntrySize", Sec.sh_entsize); + + if (opts::SectionRelocations) { + ListScope D(W, "Relocations"); + printRelocations(&Sec, Obj); + } + + if (opts::SectionSymbols) { + ListScope D(W, "Symbols"); + const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec(); + StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); + + for (const Elf_Sym &Sym : Obj->symbols(Symtab)) { + const Elf_Shdr *SymSec = unwrapOrError( + Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable())); + if (SymSec == &Sec) + printSymbol(Obj, &Sym, Obj->symbol_begin(Symtab), StrTable, false); + } + } + + if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) { + ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec)); + W.printBinaryBlock("SectionData", + StringRef((const char *)Data.data(), Data.size())); + } + } +} + +template <class ELFT> +void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, + const Elf_Sym *First, StringRef StrTable, + bool IsDynamic) { + unsigned SectionIndex = 0; + StringRef SectionName; + getSectionNameIndex(*Obj, Symbol, First, this->dumper()->getShndxTable(), + SectionName, SectionIndex); + std::string FullSymbolName = + this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); + unsigned char SymbolType = Symbol->getType(); + + DictScope D(W, "Symbol"); + W.printNumber("Name", FullSymbolName, Symbol->st_name); + W.printHex("Value", Symbol->st_value); + W.printNumber("Size", Symbol->st_size); + W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); + if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && + SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) + W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes)); + else + W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes)); + if (Symbol->st_other == 0) + // Usually st_other flag is zero. Do not pollute the output + // by flags enumeration in that case. + W.printNumber("Other", 0); + else { + std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags), + std::end(ElfSymOtherFlags)); + if (Obj->getHeader()->e_machine == EM_MIPS) { + // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16 + // flag overlapped with other ST_MIPS_xxx flags. So consider both + // cases separately. + if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16) + SymOtherFlags.insert(SymOtherFlags.end(), + std::begin(ElfMips16SymOtherFlags), + std::end(ElfMips16SymOtherFlags)); + else + SymOtherFlags.insert(SymOtherFlags.end(), + std::begin(ElfMipsSymOtherFlags), + std::end(ElfMipsSymOtherFlags)); + } + W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u); + } + W.printHex("Section", SectionName, SectionIndex); +} + +template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) { + ListScope Group(W, "Symbols"); + this->dumper()->printSymbolsHelper(false); +} + +template <class ELFT> +void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { + ListScope Group(W, "DynamicSymbols"); + this->dumper()->printSymbolsHelper(true); +} + +template <class ELFT> +void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { + const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); + const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); + const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); + if (DynRelRegion.Size && DynRelaRegion.Size) + report_fatal_error("There are both REL and RELA dynamic relocations"); + W.startLine() << "Dynamic Relocations {\n"; + W.indent(); + if (DynRelaRegion.Size > 0) + for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) + printDynamicRelocation(Obj, Rela); + else + for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { + Elf_Rela Rela; + Rela.r_offset = Rel.r_offset; + Rela.r_info = Rel.r_info; + Rela.r_addend = 0; + printDynamicRelocation(Obj, Rela); + } + if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) + for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) + printDynamicRelocation(Obj, Rela); + else + for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { + Elf_Rela Rela; + Rela.r_offset = Rel.r_offset; + Rela.r_info = Rel.r_info; + Rela.r_addend = 0; + printDynamicRelocation(Obj, Rela); + } + W.unindent(); + W.startLine() << "}\n"; +} + +template <class ELFT> +void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) { + SmallString<32> RelocName; + Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); + StringRef SymbolName; + uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL()); + const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; + SymbolName = + unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); + if (opts::ExpandRelocs) { + DictScope Group(W, "Relocation"); + W.printHex("Offset", Rel.r_offset); + W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); + W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-"); + W.printHex("Addend", Rel.r_addend); + } else { + raw_ostream &OS = W.startLine(); + OS << W.hex(Rel.r_offset) << " " << RelocName << " " + << (SymbolName.size() > 0 ? SymbolName : "-") << " " + << W.hex(Rel.r_addend) << "\n"; + } +} + +template <class ELFT> +void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { + ListScope L(W, "ProgramHeaders"); - prettyPrintStackMap( - llvm::outs(), - StackMapV1Parser<ELFT::TargetEndianness>(*StackMapContentsArray)); + for (const Elf_Phdr &Phdr : Obj->program_headers()) { + DictScope P(W, "ProgramHeader"); + W.printHex("Type", + getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type), + Phdr.p_type); + W.printHex("Offset", Phdr.p_offset); + W.printHex("VirtualAddress", Phdr.p_vaddr); + W.printHex("PhysicalAddress", Phdr.p_paddr); + W.printNumber("FileSize", Phdr.p_filesz); + W.printNumber("MemSize", Phdr.p_memsz); + W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags)); + W.printNumber("Alignment", Phdr.p_align); + } +} +template <class ELFT> +void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { + W.startLine() << "Hash Histogram not implemented!\n"; } |