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Diffstat (limited to 'gnu/llvm/tools/llvm-readobj/ELFDumper.cpp')
| -rw-r--r-- | gnu/llvm/tools/llvm-readobj/ELFDumper.cpp | 4773 |
1 files changed, 0 insertions, 4773 deletions
diff --git a/gnu/llvm/tools/llvm-readobj/ELFDumper.cpp b/gnu/llvm/tools/llvm-readobj/ELFDumper.cpp deleted file mode 100644 index 93254717e92..00000000000 --- a/gnu/llvm/tools/llvm-readobj/ELFDumper.cpp +++ /dev/null @@ -1,4773 +0,0 @@ -//===- ELFDumper.cpp - ELF-specific dumper --------------------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -/// -/// \file -/// This file implements the ELF-specific dumper for llvm-readobj. -/// -//===----------------------------------------------------------------------===// - -#include "ARMEHABIPrinter.h" -#include "DwarfCFIEHPrinter.h" -#include "Error.h" -#include "ObjDumper.h" -#include "StackMapPrinter.h" -#include "llvm-readobj.h" -#include "llvm/ADT/ArrayRef.h" -#include "llvm/ADT/DenseMap.h" -#include "llvm/ADT/Optional.h" -#include "llvm/ADT/PointerIntPair.h" -#include "llvm/ADT/STLExtras.h" -#include "llvm/ADT/SmallString.h" -#include "llvm/ADT/SmallVector.h" -#include "llvm/ADT/StringExtras.h" -#include "llvm/ADT/StringRef.h" -#include "llvm/ADT/Twine.h" -#include "llvm/BinaryFormat/AMDGPUMetadataVerifier.h" -#include "llvm/BinaryFormat/ELF.h" -#include "llvm/Object/ELF.h" -#include "llvm/Object/ELFObjectFile.h" -#include "llvm/Object/ELFTypes.h" -#include "llvm/Object/Error.h" -#include "llvm/Object/ObjectFile.h" -#include "llvm/Object/StackMapParser.h" -#include "llvm/Support/AMDGPUMetadata.h" -#include "llvm/Support/ARMAttributeParser.h" -#include "llvm/Support/ARMBuildAttributes.h" -#include "llvm/Support/Casting.h" -#include "llvm/Support/Compiler.h" -#include "llvm/Support/Endian.h" -#include "llvm/Support/ErrorHandling.h" -#include "llvm/Support/Format.h" -#include "llvm/Support/FormatVariadic.h" -#include "llvm/Support/FormattedStream.h" -#include "llvm/Support/LEB128.h" -#include "llvm/Support/MathExtras.h" -#include "llvm/Support/MipsABIFlags.h" -#include "llvm/Support/ScopedPrinter.h" -#include "llvm/Support/raw_ostream.h" -#include <algorithm> -#include <cinttypes> -#include <cstddef> -#include <cstdint> -#include <cstdlib> -#include <iterator> -#include <memory> -#include <string> -#include <system_error> -#include <vector> - -using namespace llvm; -using namespace llvm::object; -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) \ - using ELFO = ELFFile<ELFT>; \ - using Elf_Addr = typename ELFT::Addr; \ - using Elf_Shdr = typename ELFT::Shdr; \ - using Elf_Sym = typename ELFT::Sym; \ - using Elf_Dyn = typename ELFT::Dyn; \ - using Elf_Dyn_Range = typename ELFT::DynRange; \ - using Elf_Rel = typename ELFT::Rel; \ - using Elf_Rela = typename ELFT::Rela; \ - using Elf_Relr = typename ELFT::Relr; \ - using Elf_Rel_Range = typename ELFT::RelRange; \ - using Elf_Rela_Range = typename ELFT::RelaRange; \ - using Elf_Relr_Range = typename ELFT::RelrRange; \ - using Elf_Phdr = typename ELFT::Phdr; \ - using Elf_Half = typename ELFT::Half; \ - using Elf_Ehdr = typename ELFT::Ehdr; \ - using Elf_Word = typename ELFT::Word; \ - using Elf_Hash = typename ELFT::Hash; \ - using Elf_GnuHash = typename ELFT::GnuHash; \ - using Elf_Note = typename ELFT::Note; \ - using Elf_Sym_Range = typename ELFT::SymRange; \ - using Elf_Versym = typename ELFT::Versym; \ - using Elf_Verneed = typename ELFT::Verneed; \ - using Elf_Vernaux = typename ELFT::Vernaux; \ - using Elf_Verdef = typename ELFT::Verdef; \ - using Elf_Verdaux = typename ELFT::Verdaux; \ - using Elf_CGProfile = typename ELFT::CGProfile; \ - using uintX_t = typename ELFT::uint; - -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() = default; - DynRegionInfo(const void *A, uint64_t S, uint64_t ES) - : Addr(A), Size(S), EntSize(ES) {} - - /// Address in current address space. - const void *Addr = nullptr; - /// Size in bytes of the region. - uint64_t Size = 0; - /// Size of each entity in the region. - uint64_t EntSize = 0; - - 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 object::ELFObjectFile<ELFT> *ObjF, ScopedPrinter &Writer); - - void printFileHeaders() override; - void printSectionHeaders() override; - void printRelocations() override; - void printDynamicRelocations() override; - void printSymbols() override; - void printDynamicSymbols() override; - void printUnwindInfo() override; - - void printDynamicTable() override; - void printNeededLibraries() override; - void printProgramHeaders() override; - void printHashTable() override; - 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; - - void printCGProfile() override; - void printAddrsig() override; - - void printNotes() override; - - void printELFLinkerOptions() override; - -private: - std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle; - - TYPEDEF_ELF_TYPES(ELFT) - - DynRegionInfo checkDRI(DynRegionInfo DRI) { - const ELFFile<ELFT> *Obj = ObjF->getELFFile(); - 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({ObjF->getELFFile()->base() + P->p_offset, P->p_filesz, EntSize}); - } - - DynRegionInfo createDRIFrom(const Elf_Shdr *S) { - return checkDRI({ObjF->getELFFile()->base() + S->sh_offset, S->sh_size, S->sh_entsize}); - } - - void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments); - - void printValue(uint64_t Type, uint64_t Value); - - StringRef getDynamicString(uint64_t Offset) const; - StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb, - bool &IsDefault) const; - void LoadVersionMap() const; - void LoadVersionNeeds(const Elf_Shdr *ec) const; - void LoadVersionDefs(const Elf_Shdr *sec) const; - - const object::ELFObjectFile<ELFT> *ObjF; - DynRegionInfo DynRelRegion; - DynRegionInfo DynRelaRegion; - DynRegionInfo DynRelrRegion; - DynRegionInfo DynPLTRelRegion; - DynRegionInfo DynSymRegion; - DynRegionInfo DynamicTable; - StringRef DynamicStringTable; - StringRef SOName; - const Elf_Hash *HashTable = nullptr; - const Elf_GnuHash *GnuHashTable = nullptr; - const Elf_Shdr *DotSymtabSec = nullptr; - const Elf_Shdr *DotCGProfileSec = nullptr; - const Elf_Shdr *DotAddrsigSec = nullptr; - StringRef DynSymtabName; - ArrayRef<Elf_Word> ShndxTable; - - const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version - const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r - const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d - - // Records for each version index the corresponding Verdef or Vernaux entry. - // This is filled the first time LoadVersionMap() is called. - class VersionMapEntry : public PointerIntPair<const void *, 1> { - public: - // If the integer is 0, this is an Elf_Verdef*. - // If the integer is 1, this is an Elf_Vernaux*. - VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {} - VersionMapEntry(const Elf_Verdef *verdef) - : PointerIntPair<const void *, 1>(verdef, 0) {} - VersionMapEntry(const Elf_Vernaux *vernaux) - : PointerIntPair<const void *, 1>(vernaux, 1) {} - - bool isNull() const { return getPointer() == nullptr; } - bool isVerdef() const { return !isNull() && getInt() == 0; } - bool isVernaux() const { return !isNull() && getInt() == 1; } - const Elf_Verdef *getVerdef() const { - return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr; - } - const Elf_Vernaux *getVernaux() const { - return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr; - } - }; - mutable SmallVector<VersionMapEntry, 16> VersionMap; - -public: - Elf_Dyn_Range dynamic_table() const { - 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; - Elf_Relr_Range dyn_relrs() const; - std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable, - bool IsDynamic) const; - void getSectionNameIndex(const Elf_Sym *Symbol, const Elf_Sym *FirstSym, - StringRef &SectionName, - unsigned &SectionIndex) const; - StringRef getStaticSymbolName(uint32_t Index) const; - - void printSymbolsHelper(bool IsDynamic) const; - const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; } - const Elf_Shdr *getDotCGProfileSec() const { return DotCGProfileSec; } - const Elf_Shdr *getDotAddrsigSec() const { return DotAddrsigSec; } - 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 &getDynRelrRegion() const { return DynRelrRegion; } - const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; } - const Elf_Hash *getHashTable() const { return HashTable; } - const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; } -}; - -template <class ELFT> -void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const { - StringRef StrTable, SymtabName; - size_t Entries = 0; - Elf_Sym_Range Syms(nullptr, nullptr); - const ELFFile<ELFT> *Obj = ObjF->getELFFile(); - 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 = unwrapOrError(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 <class ELFT> class MipsGOTParser; - -template <typename ELFT> class DumpStyle { -public: - using Elf_Shdr = typename ELFT::Shdr; - using Elf_Sym = typename ELFT::Sym; - - DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {} - virtual ~DumpStyle() = default; - - 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 printSectionHeaders(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) {} - 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; - virtual void printCGProfile(const ELFFile<ELFT> *Obj) = 0; - virtual void printAddrsig(const ELFFile<ELFT> *Obj) = 0; - virtual void printNotes(const ELFFile<ELFT> *Obj) = 0; - virtual void printELFLinkerOptions(const ELFFile<ELFT> *Obj) = 0; - virtual void printMipsGOT(const MipsGOTParser<ELFT> &Parser) = 0; - virtual void printMipsPLT(const MipsGOTParser<ELFT> &Parser) = 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 printSectionHeaders(const ELFO *Obj) override; - void printSymbols(const ELFO *Obj) override; - void printDynamicSymbols(const ELFO *Obj) override; - void printDynamicRelocations(const ELFO *Obj) override; - void printSymtabMessage(const ELFO *Obj, StringRef Name, - size_t Offset) override; - void printProgramHeaders(const ELFO *Obj) override; - void printHashHistogram(const ELFFile<ELFT> *Obj) override; - void printCGProfile(const ELFFile<ELFT> *Obj) override; - void printAddrsig(const ELFFile<ELFT> *Obj) override; - void printNotes(const ELFFile<ELFT> *Obj) override; - void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; - void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; - void printMipsPLT(const MipsGOTParser<ELFT> &Parser) 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); - } - - template <typename T, typename TEnum> - std::string printFlags(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues, - TEnum EnumMask1 = {}, TEnum EnumMask2 = {}, - TEnum EnumMask3 = {}) { - std::string Str; - for (const auto &Flag : EnumValues) { - if (Flag.Value == 0) - continue; - - TEnum EnumMask{}; - if (Flag.Value & EnumMask1) - EnumMask = EnumMask1; - else if (Flag.Value & EnumMask2) - EnumMask = EnumMask2; - else if (Flag.Value & EnumMask3) - EnumMask = EnumMask3; - bool IsEnum = (Flag.Value & EnumMask) != 0; - if ((!IsEnum && (Value & Flag.Value) == Flag.Value) || - (IsEnum && (Value & EnumMask) == Flag.Value)) { - if (!Str.empty()) - Str += ", "; - Str += Flag.AltName; - } - } - return Str; - } - - formatted_raw_ostream &printField(struct Field F) { - if (F.Column != 0) - OS.PadToColumn(F.Column); - OS << F.Str; - OS.flush(); - return OS; - } - void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym, - StringRef StrTable, uint32_t Bucket); - void printRelocHeader(unsigned SType); - 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 printSectionHeaders(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; - void printCGProfile(const ELFFile<ELFT> *Obj) override; - void printAddrsig(const ELFFile<ELFT> *Obj) override; - void printNotes(const ELFFile<ELFT> *Obj) override; - void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; - void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; - void printMipsPLT(const MipsGOTParser<ELFT> &Parser) 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; -}; - -} // end anonymous namespace - -namespace llvm { - -template <class ELFT> -static std::error_code createELFDumper(const ELFObjectFile<ELFT> *Obj, - 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, - ScopedPrinter &Writer, - std::unique_ptr<ObjDumper> &Result) { - // Little-endian 32-bit - if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) - return createELFDumper(ELFObj, Writer, Result); - - // Big-endian 32-bit - if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) - return createELFDumper(ELFObj, Writer, Result); - - // Little-endian 64-bit - if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) - return createELFDumper(ELFObj, Writer, Result); - - // Big-endian 64-bit - if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) - return createELFDumper(ELFObj, Writer, Result); - - return readobj_error::unsupported_obj_file_format; -} - -} // end namespace llvm - -// Iterate through the versions needed section, and place each Elf_Vernaux -// in the VersionMap according to its index. -template <class ELFT> -void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const { - unsigned vn_size = sec->sh_size; // Size of section in bytes - unsigned vn_count = sec->sh_info; // Number of Verneed entries - const char *sec_start = (const char *)ObjF->getELFFile()->base() + sec->sh_offset; - const char *sec_end = sec_start + vn_size; - // The first Verneed entry is at the start of the section. - const char *p = sec_start; - for (unsigned i = 0; i < vn_count; i++) { - if (p + sizeof(Elf_Verneed) > sec_end) - report_fatal_error("Section ended unexpectedly while scanning " - "version needed records."); - const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p); - if (vn->vn_version != ELF::VER_NEED_CURRENT) - report_fatal_error("Unexpected verneed version"); - // Iterate through the Vernaux entries - const char *paux = p + vn->vn_aux; - for (unsigned j = 0; j < vn->vn_cnt; j++) { - if (paux + sizeof(Elf_Vernaux) > sec_end) - report_fatal_error("Section ended unexpected while scanning auxiliary " - "version needed records."); - const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux); - size_t index = vna->vna_other & ELF::VERSYM_VERSION; - if (index >= VersionMap.size()) - VersionMap.resize(index + 1); - VersionMap[index] = VersionMapEntry(vna); - paux += vna->vna_next; - } - p += vn->vn_next; - } -} - -// Iterate through the version definitions, and place each Elf_Verdef -// in the VersionMap according to its index. -template <class ELFT> -void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const { - unsigned vd_size = sec->sh_size; // Size of section in bytes - unsigned vd_count = sec->sh_info; // Number of Verdef entries - const char *sec_start = (const char *)ObjF->getELFFile()->base() + sec->sh_offset; - const char *sec_end = sec_start + vd_size; - // The first Verdef entry is at the start of the section. - const char *p = sec_start; - for (unsigned i = 0; i < vd_count; i++) { - if (p + sizeof(Elf_Verdef) > sec_end) - report_fatal_error("Section ended unexpectedly while scanning " - "version definitions."); - const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p); - if (vd->vd_version != ELF::VER_DEF_CURRENT) - report_fatal_error("Unexpected verdef version"); - size_t index = vd->vd_ndx & ELF::VERSYM_VERSION; - if (index >= VersionMap.size()) - VersionMap.resize(index + 1); - VersionMap[index] = VersionMapEntry(vd); - p += vd->vd_next; - } -} - -template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const { - // If there is no dynamic symtab or version table, there is nothing to do. - if (!DynSymRegion.Addr || !dot_gnu_version_sec) - return; - - // Has the VersionMap already been loaded? - if (!VersionMap.empty()) - return; - - // The first two version indexes are reserved. - // Index 0 is LOCAL, index 1 is GLOBAL. - VersionMap.push_back(VersionMapEntry()); - VersionMap.push_back(VersionMapEntry()); - - if (dot_gnu_version_d_sec) - LoadVersionDefs(dot_gnu_version_d_sec); - - if (dot_gnu_version_r_sec) - LoadVersionNeeds(dot_gnu_version_r_sec); -} - -template <typename ELFO, class ELFT> -static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj, - const typename ELFO::Elf_Shdr *Sec, - ScopedPrinter &W) { - DictScope SS(W, "Version symbols"); - if (!Sec) - return; - 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 uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset; - 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 : Dumper->dynamic_symbols()) { - DictScope S(W, "Symbol"); - std::string FullSymbolName = - 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, - ScopedPrinter &W) { - using VerDef = typename ELFO::Elf_Verdef; - using VerdAux = typename ELFO::Elf_Verdaux; - - DictScope SD(W, "SHT_GNU_verdef"); - if (!Sec) - return; - - // 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) { - VerDefsNum = Dyn.d_un.d_val; - break; - } - } - - 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; - const typename ELFO::Elf_Shdr *StrTab = - unwrapOrError(Obj->getSection(Sec->sh_link)); - - while (VerDefsNum--) { - if (P + sizeof(VerDef) > SecEndAddress) - report_fatal_error("invalid offset in the section"); - - 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("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) { - using VerNeed = typename ELFO::Elf_Verneed; - using VernAux = typename ELFO::Elf_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; - break; - } - } - - 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, ObjF->getELFFile(), dot_gnu_version_sec, W); - - // Dump version definition section. - printVersionDefinitionSection(this, ObjF->getELFFile(), dot_gnu_version_d_sec, W); - - // Dump version dependency section. - printVersionDependencySection(this, ObjF->getELFFile(), dot_gnu_version_r_sec, W); -} - -template <typename ELFT> -StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, - const Elf_Sym *symb, - bool &IsDefault) const { - // This is a dynamic symbol. Look in the GNU symbol version table. - if (!dot_gnu_version_sec) { - // No version table. - IsDefault = false; - return StringRef(""); - } - - // Determine the position in the symbol table of this entry. - size_t entry_index = (reinterpret_cast<uintptr_t>(symb) - - reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) / - sizeof(Elf_Sym); - - // Get the corresponding version index entry - const Elf_Versym *vs = unwrapOrError( - ObjF->getELFFile()->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index)); - size_t version_index = vs->vs_index & ELF::VERSYM_VERSION; - - // Special markers for unversioned symbols. - if (version_index == ELF::VER_NDX_LOCAL || - version_index == ELF::VER_NDX_GLOBAL) { - IsDefault = false; - return StringRef(""); - } - - // Lookup this symbol in the version table - LoadVersionMap(); - if (version_index >= VersionMap.size() || VersionMap[version_index].isNull()) - reportError("Invalid version entry"); - const VersionMapEntry &entry = VersionMap[version_index]; - - // Get the version name string - size_t name_offset; - if (entry.isVerdef()) { - // The first Verdaux entry holds the name. - name_offset = entry.getVerdef()->getAux()->vda_name; - IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN); - } else { - name_offset = entry.getVernaux()->vna_name; - IsDefault = false; - } - if (name_offset >= StrTab.size()) - reportError("Invalid string offset"); - return StringRef(StrTab.data() + name_offset); -} - -template <typename ELFT> -StringRef ELFDumper<ELFT>::getStaticSymbolName(uint32_t Index) const { - const ELFFile<ELFT> *Obj = ObjF->getELFFile(); - StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); - Elf_Sym_Range Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); - if (Index >= Syms.size()) - reportError("Invalid symbol index"); - const Elf_Sym *Sym = &Syms[Index]; - return unwrapOrError(Sym->getName(StrTable)); -} - -template <typename ELFT> -std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol, - StringRef StrTable, - bool IsDynamic) const { - StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable)); - if (!IsDynamic) - return SymbolName; - - std::string FullSymbolName(SymbolName); - - bool IsDefault; - StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault); - if (!Version.empty()) { - FullSymbolName += (IsDefault ? "@@" : "@"); - FullSymbolName += Version; - } - return FullSymbolName; -} - -template <typename ELFT> -void ELFDumper<ELFT>::getSectionNameIndex(const Elf_Sym *Symbol, - const Elf_Sym *FirstSym, - StringRef &SectionName, - unsigned &SectionIndex) const { - SectionIndex = Symbol->st_shndx; - if (Symbol->isUndefined()) - SectionName = "Undefined"; - else if (Symbol->isProcessorSpecific()) - SectionName = "Processor Specific"; - else if (Symbol->isOSSpecific()) - SectionName = "Operating System Specific"; - else if (Symbol->isAbsolute()) - SectionName = "Absolute"; - else if (Symbol->isCommon()) - SectionName = "Common"; - else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX) - SectionName = "Reserved"; - else { - if (SectionIndex == SHN_XINDEX) - SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( - Symbol, FirstSym, ShndxTable)); - const ELFFile<ELFT> *Obj = ObjF->getELFFile(); - const typename ELFT::Shdr *Sec = - unwrapOrError(Obj->getSection(SectionIndex)); - SectionName = unwrapOrError(Obj->getSectionName(Sec)); - } -} - -template <class ELFO> -static const typename ELFO::Elf_Shdr * -findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) { - for (const auto &Shdr : unwrapOrError(Obj->sections())) - if (Shdr.sh_addr == Addr && Shdr.sh_size > 0) - return &Shdr; - return nullptr; -} - -template <class ELFO> -static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj, - StringRef Name) { - for (const auto &Shdr : unwrapOrError(Obj.sections())) { - if (Name == unwrapOrError(Obj.getSectionName(&Shdr))) - return &Shdr; - } - return nullptr; -} - -static const EnumEntry<unsigned> ElfClass[] = { - {"None", "none", ELF::ELFCLASSNONE}, - {"32-bit", "ELF32", ELF::ELFCLASS32}, - {"64-bit", "ELF64", ELF::ELFCLASS64}, -}; - -static const EnumEntry<unsigned> ElfDataEncoding[] = { - {"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", "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", "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}, - {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE} -}; - -static const EnumEntry<unsigned> AMDGPUElfOSABI[] = { - {"AMDGPU_HSA", "AMDGPU - HSA", ELF::ELFOSABI_AMDGPU_HSA}, - {"AMDGPU_PAL", "AMDGPU - PAL", ELF::ELFOSABI_AMDGPU_PAL}, - {"AMDGPU_MESA3D", "AMDGPU - MESA3D", ELF::ELFOSABI_AMDGPU_MESA3D} -}; - -static const EnumEntry<unsigned> ARMElfOSABI[] = { - {"ARM", "ARM", ELF::ELFOSABI_ARM} -}; - -static const EnumEntry<unsigned> C6000ElfOSABI[] = { - {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI}, - {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX} -}; - -static const EnumEntry<unsigned> ElfMachineType[] = { - 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 Corporation 32-bit microprocessor family"), - 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_RISCV, "RISC-V"), - ENUM_ENT(EM_LANAI, "EM_LANAI"), - ENUM_ENT(EM_BPF, "EM_BPF"), -}; - -static const EnumEntry<unsigned> ElfSymbolBindings[] = { - {"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", "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 } -}; - -static const char *getGroupType(uint32_t Flag) { - if (Flag & ELF::GRP_COMDAT) - return "COMDAT"; - else - return "(unknown)"; -} - -static const EnumEntry<unsigned> ElfSectionFlags[] = { - 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) -}; - -static const EnumEntry<unsigned> ElfARMSectionFlags[] = { - LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE) -}; - -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. - switch (Arch) { - case ELF::EM_ARM: - switch (Type) { - LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX); - } - break; - case ELF::EM_MIPS: - case ELF::EM_MIPS_RS3_LE: - switch (Type) { - LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO); - LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC); - LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS); - LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS); - } - break; - } - - switch (Type) { - LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL ); - LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD ); - LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC); - LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP ); - LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE ); - LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB ); - LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR ); - LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS ); - - LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME); - LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND); - - LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK); - LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO); - - LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE); - LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED); - LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA); - - default: return ""; - } -} - -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_ARM: - if (Type == ELF::PT_ARM_EXIDX) - return "EXIDX"; - break; - 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"; - } - break; - } - } - 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), - LLVM_READOBJ_ENUM_ENT(ELF, PF_R) -}; - -static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = { - ENUM_ENT(EF_MIPS_NOREORDER, "noreorder"), - ENUM_ENT(EF_MIPS_PIC, "pic"), - ENUM_ENT(EF_MIPS_CPIC, "cpic"), - ENUM_ENT(EF_MIPS_ABI2, "abi2"), - ENUM_ENT(EF_MIPS_32BITMODE, "32bitmode"), - ENUM_ENT(EF_MIPS_FP64, "fp64"), - ENUM_ENT(EF_MIPS_NAN2008, "nan2008"), - ENUM_ENT(EF_MIPS_ABI_O32, "o32"), - ENUM_ENT(EF_MIPS_ABI_O64, "o64"), - ENUM_ENT(EF_MIPS_ABI_EABI32, "eabi32"), - ENUM_ENT(EF_MIPS_ABI_EABI64, "eabi64"), - ENUM_ENT(EF_MIPS_MACH_3900, "3900"), - ENUM_ENT(EF_MIPS_MACH_4010, "4010"), - ENUM_ENT(EF_MIPS_MACH_4100, "4100"), - ENUM_ENT(EF_MIPS_MACH_4650, "4650"), - ENUM_ENT(EF_MIPS_MACH_4120, "4120"), - ENUM_ENT(EF_MIPS_MACH_4111, "4111"), - ENUM_ENT(EF_MIPS_MACH_SB1, "sb1"), - ENUM_ENT(EF_MIPS_MACH_OCTEON, "octeon"), - ENUM_ENT(EF_MIPS_MACH_XLR, "xlr"), - ENUM_ENT(EF_MIPS_MACH_OCTEON2, "octeon2"), - ENUM_ENT(EF_MIPS_MACH_OCTEON3, "octeon3"), - ENUM_ENT(EF_MIPS_MACH_5400, "5400"), - ENUM_ENT(EF_MIPS_MACH_5900, "5900"), - ENUM_ENT(EF_MIPS_MACH_5500, "5500"), - ENUM_ENT(EF_MIPS_MACH_9000, "9000"), - ENUM_ENT(EF_MIPS_MACH_LS2E, "loongson-2e"), - ENUM_ENT(EF_MIPS_MACH_LS2F, "loongson-2f"), - ENUM_ENT(EF_MIPS_MACH_LS3A, "loongson-3a"), - ENUM_ENT(EF_MIPS_MICROMIPS, "micromips"), - ENUM_ENT(EF_MIPS_ARCH_ASE_M16, "mips16"), - ENUM_ENT(EF_MIPS_ARCH_ASE_MDMX, "mdmx"), - ENUM_ENT(EF_MIPS_ARCH_1, "mips1"), - ENUM_ENT(EF_MIPS_ARCH_2, "mips2"), - ENUM_ENT(EF_MIPS_ARCH_3, "mips3"), - ENUM_ENT(EF_MIPS_ARCH_4, "mips4"), - ENUM_ENT(EF_MIPS_ARCH_5, "mips5"), - ENUM_ENT(EF_MIPS_ARCH_32, "mips32"), - ENUM_ENT(EF_MIPS_ARCH_64, "mips64"), - ENUM_ENT(EF_MIPS_ARCH_32R2, "mips32r2"), - ENUM_ENT(EF_MIPS_ARCH_64R2, "mips64r2"), - ENUM_ENT(EF_MIPS_ARCH_32R6, "mips32r6"), - ENUM_ENT(EF_MIPS_ARCH_64R6, "mips64r6") -}; - -static const EnumEntry<unsigned> ElfHeaderAMDGPUFlags[] = { - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_NONE), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R600), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R630), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RS880), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV670), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV710), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV730), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV770), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CEDAR), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CYPRESS), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_JUNIPER), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_REDWOOD), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_SUMO), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_BARTS), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAICOS), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAYMAN), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_TURKS), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX600), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX601), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX700), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX701), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX702), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX703), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX704), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX801), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX802), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX803), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX810), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX900), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX902), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX904), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX906), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX909), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_XNACK), - LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_SRAM_ECC) -}; - -static const EnumEntry<unsigned> ElfHeaderRISCVFlags[] = { - ENUM_ENT(EF_RISCV_RVC, "RVC"), - ENUM_ENT(EF_RISCV_FLOAT_ABI_SINGLE, "single-float ABI"), - ENUM_ENT(EF_RISCV_FLOAT_ABI_DOUBLE, "double-float ABI"), - ENUM_ENT(EF_RISCV_FLOAT_ABI_QUAD, "quad-float ABI"), - ENUM_ENT(EF_RISCV_RVE, "RVE") -}; - -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 object::ELFObjectFile<ELFT> *ObjF, - ScopedPrinter &Writer) - : ObjDumper(Writer), ObjF(ObjF) { - SmallVector<const Elf_Phdr *, 4> LoadSegments; - const ELFFile<ELFT> *Obj = ObjF->getELFFile(); - for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { - if (Phdr.p_type == ELF::PT_DYNAMIC) { - DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn)); - continue; - } - if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0) - continue; - LoadSegments.push_back(&Phdr); - } - - for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { - switch (Sec.sh_type) { - case ELF::SHT_SYMTAB: - if (DotSymtabSec != nullptr) - reportError("Multiple SHT_SYMTAB"); - DotSymtabSec = &Sec; - break; - case ELF::SHT_DYNSYM: - if (DynSymRegion.Size) - reportError("Multiple SHT_DYNSYM"); - DynSymRegion = createDRIFrom(&Sec); - // This is only used (if Elf_Shdr present)for naming section in GNU style - DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec)); - DynamicStringTable = unwrapOrError(Obj->getStringTableForSymtab(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("Multiple SHT_GNU_verneed"); - dot_gnu_version_r_sec = &Sec; - break; - case ELF::SHT_LLVM_CALL_GRAPH_PROFILE: - if (DotCGProfileSec != nullptr) - reportError("Multiple .llvm.call-graph-profile"); - DotCGProfileSec = &Sec; - break; - case ELF::SHT_LLVM_ADDRSIG: - if (DotAddrsigSec != nullptr) - reportError("Multiple .llvm_addrsig"); - DotAddrsigSec = &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 * { - auto MappedAddrOrError = ObjF->getELFFile()->toMappedAddr(VAddr); - if (!MappedAddrOrError) - report_fatal_error(MappedAddrOrError.takeError()); - return MappedAddrOrError.get(); - }; - - uint64_t SONameOffset = 0; - const char *StringTableBegin = nullptr; - uint64_t StringTableSize = 0; - for (const Elf_Dyn &Dyn : dynamic_table()) { - switch (Dyn.d_tag) { - case ELF::DT_HASH: - HashTable = - reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr())); - break; - case ELF::DT_GNU_HASH: - 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; - case ELF::DT_RELASZ: - DynRelaRegion.Size = Dyn.getVal(); - break; - case ELF::DT_RELAENT: - DynRelaRegion.EntSize = Dyn.getVal(); - break; - case ELF::DT_SONAME: - SONameOffset = Dyn.getVal(); - break; - case ELF::DT_REL: - DynRelRegion.Addr = toMappedAddr(Dyn.getPtr()); - break; - case ELF::DT_RELSZ: - DynRelRegion.Size = Dyn.getVal(); - break; - case ELF::DT_RELENT: - DynRelRegion.EntSize = Dyn.getVal(); - break; - case ELF::DT_RELR: - case ELF::DT_ANDROID_RELR: - DynRelrRegion.Addr = toMappedAddr(Dyn.getPtr()); - break; - case ELF::DT_RELRSZ: - case ELF::DT_ANDROID_RELRSZ: - DynRelrRegion.Size = Dyn.getVal(); - break; - case ELF::DT_RELRENT: - case ELF::DT_ANDROID_RELRENT: - DynRelrRegion.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; - } - } - if (StringTableBegin) - DynamicStringTable = StringRef(StringTableBegin, StringTableSize); - if (SONameOffset) - SOName = getDynamicString(SONameOffset); -} - -template <typename ELFT> -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 DynRelaRegion.getAsArrayRef<Elf_Rela>(); -} - -template <typename ELFT> -typename ELFDumper<ELFT>::Elf_Relr_Range ELFDumper<ELFT>::dyn_relrs() const { - return DynRelrRegion.getAsArrayRef<Elf_Relr>(); -} - -template<class ELFT> -void ELFDumper<ELFT>::printFileHeaders() { - ELFDumperStyle->printFileHeaders(ObjF->getELFFile()); -} - -template<class ELFT> -void ELFDumper<ELFT>::printSectionHeaders() { - ELFDumperStyle->printSectionHeaders(ObjF->getELFFile()); -} - -template<class ELFT> -void ELFDumper<ELFT>::printRelocations() { - ELFDumperStyle->printRelocations(ObjF->getELFFile()); -} - -template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() { - ELFDumperStyle->printProgramHeaders(ObjF->getELFFile()); -} - -template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() { - ELFDumperStyle->printDynamicRelocations(ObjF->getELFFile()); -} - -template<class ELFT> -void ELFDumper<ELFT>::printSymbols() { - ELFDumperStyle->printSymbols(ObjF->getELFFile()); -} - -template<class ELFT> -void ELFDumper<ELFT>::printDynamicSymbols() { - ELFDumperStyle->printDynamicSymbols(ObjF->getELFFile()); -} - -template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() { - ELFDumperStyle->printHashHistogram(ObjF->getELFFile()); -} - -template <class ELFT> void ELFDumper<ELFT>::printCGProfile() { - ELFDumperStyle->printCGProfile(ObjF->getELFFile()); -} - -template <class ELFT> void ELFDumper<ELFT>::printNotes() { - ELFDumperStyle->printNotes(ObjF->getELFFile()); -} - -template <class ELFT> void ELFDumper<ELFT>::printELFLinkerOptions() { - ELFDumperStyle->printELFLinkerOptions(ObjF->getELFFile()); -} - -static const char *getTypeString(unsigned Arch, uint64_t Type) { -#define DYNAMIC_TAG(n, v) - switch (Arch) { - case EM_HEXAGON: - switch (Type) { -#define HEXAGON_DYNAMIC_TAG(name, value) \ - case DT_##name: \ - return #name; -#include "llvm/BinaryFormat/DynamicTags.def" -#undef HEXAGON_DYNAMIC_TAG - } - break; - - case EM_MIPS: - switch (Type) { -#define MIPS_DYNAMIC_TAG(name, value) \ - case DT_##name: \ - return #name; -#include "llvm/BinaryFormat/DynamicTags.def" -#undef MIPS_DYNAMIC_TAG - } - break; - - case EM_PPC64: - switch(Type) { -#define PPC64_DYNAMIC_TAG(name, value) \ - case DT_##name: \ - return #name; -#include "llvm/BinaryFormat/DynamicTags.def" -#undef PPC64_DYNAMIC_TAG - } - break; - } -#undef DYNAMIC_TAG - switch (Type) { -// Now handle all dynamic tags except the architecture specific ones -#define MIPS_DYNAMIC_TAG(name, value) -#define HEXAGON_DYNAMIC_TAG(name, value) -#define PPC64_DYNAMIC_TAG(name, value) -// Also ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc. -#define DYNAMIC_TAG_MARKER(name, value) -#define DYNAMIC_TAG(name, value) \ - case DT_##name: \ - return #name; -#include "llvm/BinaryFormat/DynamicTags.def" -#undef DYNAMIC_TAG -#undef MIPS_DYNAMIC_TAG -#undef HEXAGON_DYNAMIC_TAG -#undef PPC64_DYNAMIC_TAG -#undef DYNAMIC_TAG_MARKER - default: return "unknown"; - } -} - -#define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \ - { #enum, prefix##_##enum } - -static const EnumEntry<unsigned> ElfDynamicDTFlags[] = { - LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN), - LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC), - LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL), - LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW), - LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS) -}; - -static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = { - LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT), - LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON) -}; - -static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = { - LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE), - LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART), - LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT), - LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT), - LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE), - LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY), - LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT), - LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS), - LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT), - LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE), - LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD), - LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART), - LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED), - LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD), - LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF), - LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE) -}; - -#undef LLVM_READOBJ_DT_FLAG_ENT - -template <typename T, typename TFlag> -void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) { - using FlagEntry = EnumEntry<TFlag>; - using FlagVector = SmallVector<FlagEntry, 10>; - FlagVector SetFlags; - - for (const auto &Flag : Flags) { - if (Flag.Value == 0) - continue; - - if ((Value & Flag.Value) == Flag.Value) - SetFlags.push_back(Flag); - } - - for (const auto &Flag : SetFlags) { - OS << Flag.Name << " "; - } -} - -template <class ELFT> -StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const { - if (Value >= DynamicStringTable.size()) - reportError("Invalid dynamic string table reference"); - return StringRef(DynamicStringTable.data() + Value); -} - -static void printLibrary(raw_ostream &OS, const Twine &Tag, const Twine &Name) { - OS << Tag << ": [" << Name << "]"; -} - -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) { - OS << "REL"; - break; - } else if (Value == DT_RELA) { - OS << "RELA"; - break; - } - LLVM_FALLTHROUGH; - case DT_PLTGOT: - case DT_HASH: - case DT_STRTAB: - case DT_SYMTAB: - case DT_RELA: - case DT_INIT: - case DT_FINI: - case DT_REL: - case DT_JMPREL: - case DT_INIT_ARRAY: - case DT_FINI_ARRAY: - case DT_PREINIT_ARRAY: - case DT_DEBUG: - case DT_VERDEF: - case DT_VERNEED: - case DT_VERSYM: - case DT_GNU_HASH: - case DT_NULL: - case DT_MIPS_BASE_ADDRESS: - case DT_MIPS_GOTSYM: - case DT_MIPS_RLD_MAP: - case DT_MIPS_RLD_MAP_REL: - case DT_MIPS_PLTGOT: - case DT_MIPS_OPTIONS: - OS << format(ConvChar, Value); - break; - case DT_RELACOUNT: - case DT_RELCOUNT: - case DT_VERDEFNUM: - case DT_VERNEEDNUM: - case DT_MIPS_RLD_VERSION: - case DT_MIPS_LOCAL_GOTNO: - case DT_MIPS_SYMTABNO: - case DT_MIPS_UNREFEXTNO: - OS << Value; - break; - case DT_PLTRELSZ: - case DT_RELASZ: - case DT_RELAENT: - case DT_STRSZ: - case DT_SYMENT: - case DT_RELSZ: - case DT_RELENT: - case DT_INIT_ARRAYSZ: - case DT_FINI_ARRAYSZ: - case DT_PREINIT_ARRAYSZ: - case DT_ANDROID_RELSZ: - case DT_ANDROID_RELASZ: - OS << Value << " (bytes)"; - break; - case DT_NEEDED: - printLibrary(OS, "Shared library", getDynamicString(Value)); - break; - case DT_SONAME: - printLibrary(OS, "Library soname", getDynamicString(Value)); - break; - case DT_AUXILIARY: - printLibrary(OS, "Auxiliary library", getDynamicString(Value)); - break; - case DT_FILTER: - printLibrary(OS, "Filter library", getDynamicString(Value)); - break; - case DT_RPATH: - case DT_RUNPATH: - OS << getDynamicString(Value); - break; - case DT_MIPS_FLAGS: - printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS); - break; - case DT_FLAGS: - printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS); - break; - case DT_FLAGS_1: - printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS); - break; - default: - OS << format(ConvChar, Value); - break; - } -} - -template<class ELFT> -void ELFDumper<ELFT>::printUnwindInfo() { - const unsigned Machine = ObjF->getELFFile()->getHeader()->e_machine; - if (Machine == EM_386 || Machine == EM_X86_64) { - DwarfCFIEH::PrinterContext<ELFT> Ctx(W, ObjF); - return Ctx.printUnwindInformation(); - } - W.startLine() << "UnwindInfo not implemented.\n"; -} - -namespace { - -template <> void ELFDumper<ELF32LE>::printUnwindInfo() { - const ELFFile<ELF32LE> *Obj = ObjF->getELFFile(); - const unsigned Machine = Obj->getHeader()->e_machine; - if (Machine == EM_ARM) { - ARM::EHABI::PrinterContext<ELF32LE> Ctx(W, Obj, DotSymtabSec); - return Ctx.PrintUnwindInformation(); - } - W.startLine() << "UnwindInfo not implemented.\n"; -} - -} // end anonymous namespace - -template<class ELFT> -void ELFDumper<ELFT>::printDynamicTable() { - auto I = dynamic_table().begin(); - auto E = dynamic_table().end(); - - if (I == E) - return; - - --E; - while (I != E && E->getTag() == ELF::DT_NULL) - --E; - if (E->getTag() != ELF::DT_NULL) - ++E; - ++E; - - ptrdiff_t Total = std::distance(I, E); - if (Total == 0) - return; - - raw_ostream &OS = W.getOStream(); - W.startLine() << "DynamicSection [ (" << Total << " entries)\n"; - - bool Is64 = ELFT::Is64Bits; - - W.startLine() - << " Tag" << (Is64 ? " " : " ") << "Type" - << " " << "Name/Value\n"; - while (I != E) { - const Elf_Dyn &Entry = *I; - uintX_t Tag = Entry.getTag(); - ++I; - W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " " - << format("%-21s", getTypeString(ObjF->getELFFile()->getHeader()->e_machine, Tag)); - printValue(Tag, Entry.getVal()); - OS << "\n"; - } - - W.startLine() << "]\n"; -} - -template<class ELFT> -void ELFDumper<ELFT>::printNeededLibraries() { - ListScope D(W, "NeededLibraries"); - - using LibsTy = std::vector<StringRef>; - LibsTy Libs; - - for (const auto &Entry : dynamic_table()) - if (Entry.d_tag == ELF::DT_NEEDED) - Libs.push_back(getDynamicString(Entry.d_un.d_val)); - - std::stable_sort(Libs.begin(), Libs.end()); - - for (const auto &L : Libs) - W.startLine() << L << "\n"; -} - - -template <typename ELFT> -void ELFDumper<ELFT>::printHashTable() { - DictScope D(W, "HashTable"); - if (!HashTable) - return; - W.printNumber("Num Buckets", HashTable->nbucket); - W.printNumber("Num Chains", HashTable->nchain); - W.printList("Buckets", HashTable->buckets()); - W.printList("Chains", HashTable->chains()); -} - -template <typename ELFT> -void ELFDumper<ELFT>::printGnuHashTable() { - DictScope D(W, "GnuHashTable"); - if (!GnuHashTable) - return; - W.printNumber("Num Buckets", GnuHashTable->nbuckets); - W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx); - W.printNumber("Num Mask Words", GnuHashTable->maskwords); - W.printNumber("Shift Count", GnuHashTable->shift2); - W.printHexList("Bloom Filter", GnuHashTable->filter()); - W.printList("Buckets", GnuHashTable->buckets()); - 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(NumSyms)); -} - -template <typename ELFT> void ELFDumper<ELFT>::printLoadName() { - W.printString("LoadName", SOName); -} - -template <class ELFT> -void ELFDumper<ELFT>::printAttributes() { - W.startLine() << "Attributes not implemented.\n"; -} - -namespace { - -template <> void ELFDumper<ELF32LE>::printAttributes() { - const ELFFile<ELF32LE> *Obj = ObjF->getELFFile(); - if (Obj->getHeader()->e_machine != EM_ARM) { - W.startLine() << "Attributes not implemented.\n"; - return; - } - - DictScope BA(W, "BuildAttributes"); - for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { - if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES) - continue; - - ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec)); - if (Contents[0] != ARMBuildAttrs::Format_Version) { - errs() << "unrecognised FormatVersion: 0x" - << Twine::utohexstr(Contents[0]) << '\n'; - continue; - } - - W.printHex("FormatVersion", Contents[0]); - if (Contents.size() == 1) - continue; - - ARMAttributeParser(&W).Parse(Contents, true); - } -} - -template <class ELFT> class MipsGOTParser { -public: - TYPEDEF_ELF_TYPES(ELFT) - using Entry = typename ELFO::Elf_Addr; - using Entries = ArrayRef<Entry>; - - const bool IsStatic; - const ELFO * const Obj; - - MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, Elf_Sym_Range DynSyms); - - bool hasGot() const { return !GotEntries.empty(); } - bool hasPlt() const { return !PltEntries.empty(); } - - uint64_t getGp() const; - - const Entry *getGotLazyResolver() const; - const Entry *getGotModulePointer() const; - const Entry *getPltLazyResolver() const; - const Entry *getPltModulePointer() const; - - Entries getLocalEntries() const; - Entries getGlobalEntries() const; - Entries getOtherEntries() const; - Entries getPltEntries() const; - - uint64_t getGotAddress(const Entry * E) const; - int64_t getGotOffset(const Entry * E) const; - const Elf_Sym *getGotSym(const Entry *E) const; - - uint64_t getPltAddress(const Entry * E) const; - const Elf_Sym *getPltSym(const Entry *E) const; - - StringRef getPltStrTable() const { return PltStrTable; } - -private: - const Elf_Shdr *GotSec; - size_t LocalNum; - size_t GlobalNum; - - const Elf_Shdr *PltSec; - const Elf_Shdr *PltRelSec; - const Elf_Shdr *PltSymTable; - Elf_Sym_Range GotDynSyms; - StringRef PltStrTable; - - Entries GotEntries; - Entries PltEntries; -}; - -} // end anonymous namespace - -template <class ELFT> -MipsGOTParser<ELFT>::MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, - Elf_Sym_Range DynSyms) - : IsStatic(DynTable.empty()), Obj(Obj), GotSec(nullptr), LocalNum(0), - GlobalNum(0), PltSec(nullptr), PltRelSec(nullptr), PltSymTable(nullptr) { - // See "Global Offset Table" in Chapter 5 in the following document - // for detailed GOT description. - // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf - - // Find static GOT secton. - if (IsStatic) { - GotSec = findSectionByName(*Obj, ".got"); - if (!GotSec) - reportError("Cannot find .got section"); - - ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); - GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), - Content.size() / sizeof(Entry)); - LocalNum = GotEntries.size(); - return; - } - - // Lookup dynamic table tags which define GOT/PLT layouts. - Optional<uint64_t> DtPltGot; - Optional<uint64_t> DtLocalGotNum; - Optional<uint64_t> DtGotSym; - Optional<uint64_t> DtMipsPltGot; - Optional<uint64_t> DtJmpRel; - for (const auto &Entry : DynTable) { - switch (Entry.getTag()) { - case ELF::DT_PLTGOT: - DtPltGot = Entry.getVal(); - break; - case ELF::DT_MIPS_LOCAL_GOTNO: - DtLocalGotNum = Entry.getVal(); - break; - case ELF::DT_MIPS_GOTSYM: - DtGotSym = Entry.getVal(); - break; - case ELF::DT_MIPS_PLTGOT: - DtMipsPltGot = Entry.getVal(); - break; - case ELF::DT_JMPREL: - DtJmpRel = Entry.getVal(); - break; - } - } - - // Find dynamic GOT section. - if (DtPltGot || DtLocalGotNum || DtGotSym) { - if (!DtPltGot) - report_fatal_error("Cannot find PLTGOT dynamic table tag."); - if (!DtLocalGotNum) - report_fatal_error("Cannot find MIPS_LOCAL_GOTNO dynamic table tag."); - if (!DtGotSym) - report_fatal_error("Cannot find MIPS_GOTSYM dynamic table tag."); - - size_t DynSymTotal = DynSyms.size(); - if (*DtGotSym > DynSymTotal) - reportError("MIPS_GOTSYM exceeds a number of dynamic symbols"); - - GotSec = findNotEmptySectionByAddress(Obj, *DtPltGot); - if (!GotSec) - reportError("There is no not empty GOT section at 0x" + - Twine::utohexstr(*DtPltGot)); - - LocalNum = *DtLocalGotNum; - GlobalNum = DynSymTotal - *DtGotSym; - - ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); - GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), - Content.size() / sizeof(Entry)); - GotDynSyms = DynSyms.drop_front(*DtGotSym); - } - - // Find PLT section. - if (DtMipsPltGot || DtJmpRel) { - if (!DtMipsPltGot) - report_fatal_error("Cannot find MIPS_PLTGOT dynamic table tag."); - if (!DtJmpRel) - report_fatal_error("Cannot find JMPREL dynamic table tag."); - - PltSec = findNotEmptySectionByAddress(Obj, *DtMipsPltGot); - if (!PltSec) - report_fatal_error("There is no not empty PLTGOT section at 0x " + - Twine::utohexstr(*DtMipsPltGot)); - - PltRelSec = findNotEmptySectionByAddress(Obj, *DtJmpRel); - if (!PltRelSec) - report_fatal_error("There is no not empty RELPLT section at 0x" + - Twine::utohexstr(*DtJmpRel)); - - ArrayRef<uint8_t> PltContent = - unwrapOrError(Obj->getSectionContents(PltSec)); - PltEntries = Entries(reinterpret_cast<const Entry *>(PltContent.data()), - PltContent.size() / sizeof(Entry)); - - PltSymTable = unwrapOrError(Obj->getSection(PltRelSec->sh_link)); - PltStrTable = unwrapOrError(Obj->getStringTableForSymtab(*PltSymTable)); - } -} - -template <class ELFT> uint64_t MipsGOTParser<ELFT>::getGp() const { - return GotSec->sh_addr + 0x7ff0; -} - -template <class ELFT> -const typename MipsGOTParser<ELFT>::Entry * -MipsGOTParser<ELFT>::getGotLazyResolver() const { - return LocalNum > 0 ? &GotEntries[0] : nullptr; -} - -template <class ELFT> -const typename MipsGOTParser<ELFT>::Entry * -MipsGOTParser<ELFT>::getGotModulePointer() const { - if (LocalNum < 2) - return nullptr; - const Entry &E = GotEntries[1]; - if ((E >> (sizeof(Entry) * 8 - 1)) == 0) - return nullptr; - return &E; -} - -template <class ELFT> -typename MipsGOTParser<ELFT>::Entries -MipsGOTParser<ELFT>::getLocalEntries() const { - size_t Skip = getGotModulePointer() ? 2 : 1; - if (LocalNum - Skip <= 0) - return Entries(); - return GotEntries.slice(Skip, LocalNum - Skip); -} - -template <class ELFT> -typename MipsGOTParser<ELFT>::Entries -MipsGOTParser<ELFT>::getGlobalEntries() const { - if (GlobalNum == 0) - return Entries(); - return GotEntries.slice(LocalNum, GlobalNum); -} - -template <class ELFT> -typename MipsGOTParser<ELFT>::Entries -MipsGOTParser<ELFT>::getOtherEntries() const { - size_t OtherNum = GotEntries.size() - LocalNum - GlobalNum; - if (OtherNum == 0) - return Entries(); - return GotEntries.slice(LocalNum + GlobalNum, OtherNum); -} - -template <class ELFT> -uint64_t MipsGOTParser<ELFT>::getGotAddress(const Entry *E) const { - int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); - return GotSec->sh_addr + Offset; -} - -template <class ELFT> -int64_t MipsGOTParser<ELFT>::getGotOffset(const Entry *E) const { - int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); - return Offset - 0x7ff0; -} - -template <class ELFT> -const typename MipsGOTParser<ELFT>::Elf_Sym * -MipsGOTParser<ELFT>::getGotSym(const Entry *E) const { - int64_t Offset = std::distance(GotEntries.data(), E); - return &GotDynSyms[Offset - LocalNum]; -} - -template <class ELFT> -const typename MipsGOTParser<ELFT>::Entry * -MipsGOTParser<ELFT>::getPltLazyResolver() const { - return PltEntries.empty() ? nullptr : &PltEntries[0]; -} - -template <class ELFT> -const typename MipsGOTParser<ELFT>::Entry * -MipsGOTParser<ELFT>::getPltModulePointer() const { - return PltEntries.size() < 2 ? nullptr : &PltEntries[1]; -} - -template <class ELFT> -typename MipsGOTParser<ELFT>::Entries -MipsGOTParser<ELFT>::getPltEntries() const { - if (PltEntries.size() <= 2) - return Entries(); - return PltEntries.slice(2, PltEntries.size() - 2); -} - -template <class ELFT> -uint64_t MipsGOTParser<ELFT>::getPltAddress(const Entry *E) const { - int64_t Offset = std::distance(PltEntries.data(), E) * sizeof(Entry); - return PltSec->sh_addr + Offset; -} - -template <class ELFT> -const typename MipsGOTParser<ELFT>::Elf_Sym * -MipsGOTParser<ELFT>::getPltSym(const Entry *E) const { - int64_t Offset = std::distance(getPltEntries().data(), E); - if (PltRelSec->sh_type == ELF::SHT_REL) { - Elf_Rel_Range Rels = unwrapOrError(Obj->rels(PltRelSec)); - return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); - } else { - Elf_Rela_Range Rels = unwrapOrError(Obj->relas(PltRelSec)); - return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); - } -} - -template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() { - const ELFFile<ELFT> *Obj = ObjF->getELFFile(); - if (Obj->getHeader()->e_machine != EM_MIPS) - reportError("MIPS PLT GOT is available for MIPS targets only"); - - MipsGOTParser<ELFT> Parser(Obj, dynamic_table(), dynamic_symbols()); - if (Parser.hasGot()) - ELFDumperStyle->printMipsGOT(Parser); - if (Parser.hasPlt()) - ELFDumperStyle->printMipsPLT(Parser); -} - -static const EnumEntry<unsigned> ElfMipsISAExtType[] = { - {"None", Mips::AFL_EXT_NONE}, - {"Broadcom SB-1", Mips::AFL_EXT_SB1}, - {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON}, - {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2}, - {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP}, - {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3}, - {"LSI R4010", Mips::AFL_EXT_4010}, - {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E}, - {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F}, - {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A}, - {"MIPS R4650", Mips::AFL_EXT_4650}, - {"MIPS R5900", Mips::AFL_EXT_5900}, - {"MIPS R10000", Mips::AFL_EXT_10000}, - {"NEC VR4100", Mips::AFL_EXT_4100}, - {"NEC VR4111/VR4181", Mips::AFL_EXT_4111}, - {"NEC VR4120", Mips::AFL_EXT_4120}, - {"NEC VR5400", Mips::AFL_EXT_5400}, - {"NEC VR5500", Mips::AFL_EXT_5500}, - {"RMI Xlr", Mips::AFL_EXT_XLR}, - {"Toshiba R3900", Mips::AFL_EXT_3900} -}; - -static const EnumEntry<unsigned> ElfMipsASEFlags[] = { - {"DSP", Mips::AFL_ASE_DSP}, - {"DSPR2", Mips::AFL_ASE_DSPR2}, - {"Enhanced VA Scheme", Mips::AFL_ASE_EVA}, - {"MCU", Mips::AFL_ASE_MCU}, - {"MDMX", Mips::AFL_ASE_MDMX}, - {"MIPS-3D", Mips::AFL_ASE_MIPS3D}, - {"MT", Mips::AFL_ASE_MT}, - {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS}, - {"VZ", Mips::AFL_ASE_VIRT}, - {"MSA", Mips::AFL_ASE_MSA}, - {"MIPS16", Mips::AFL_ASE_MIPS16}, - {"microMIPS", Mips::AFL_ASE_MICROMIPS}, - {"XPA", Mips::AFL_ASE_XPA}, - {"CRC", Mips::AFL_ASE_CRC}, - {"GINV", Mips::AFL_ASE_GINV}, -}; - -static const EnumEntry<unsigned> ElfMipsFpABIType[] = { - {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY}, - {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE}, - {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE}, - {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT}, - {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)", - Mips::Val_GNU_MIPS_ABI_FP_OLD_64}, - {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX}, - {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64}, - {"Hard float compat (32-bit CPU, 64-bit FPU)", - Mips::Val_GNU_MIPS_ABI_FP_64A} -}; - -static const EnumEntry<unsigned> ElfMipsFlags1[] { - {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG}, -}; - -static int getMipsRegisterSize(uint8_t Flag) { - switch (Flag) { - case Mips::AFL_REG_NONE: - return 0; - case Mips::AFL_REG_32: - return 32; - case Mips::AFL_REG_64: - return 64; - case Mips::AFL_REG_128: - return 128; - default: - return -1; - } -} - -template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { - const ELFFile<ELFT> *Obj = ObjF->getELFFile(); - const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags"); - if (!Shdr) { - W.startLine() << "There is no .MIPS.abiflags section in the file.\n"; - return; - } - 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()); - - raw_ostream &OS = W.getOStream(); - DictScope GS(W, "MIPS ABI Flags"); - - W.printNumber("Version", Flags->version); - W.startLine() << "ISA: "; - if (Flags->isa_rev <= 1) - OS << format("MIPS%u", Flags->isa_level); - else - OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev); - OS << "\n"; - W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType)); - W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags)); - W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType)); - W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size)); - W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size)); - W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size)); - W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1)); - 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 ELFFile<ELFT> *Obj = ObjF->getELFFile(); - const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo"); - if (!Shdr) { - W.startLine() << "There is no .reginfo section in the file.\n"; - return; - } - 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; - } - - 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 ELFFile<ELFT> *Obj = ObjF->getELFFile(); - const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options"); - if (!Shdr) { - W.startLine() << "There is no .MIPS.options section in the file.\n"; - return; - } - - DictScope GS(W, "MIPS Options"); - - 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 ELFFile<ELFT> *Obj = ObjF->getELFFile(); - const Elf_Shdr *StackMapSection = nullptr; - for (const auto &Sec : unwrapOrError(Obj->sections())) { - StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); - if (Name == ".llvm_stackmaps") { - StackMapSection = &Sec; - break; - } - } - - if (!StackMapSection) - return; - - ArrayRef<uint8_t> StackMapContentsArray = - unwrapOrError(Obj->getSectionContents(StackMapSection)); - - prettyPrintStackMap( - W, StackMapV2Parser<ELFT::TargetEndianness>(StackMapContentsArray)); -} - -template <class ELFT> void ELFDumper<ELFT>::printGroupSections() { - ELFDumperStyle->printGroupSections(ObjF->getELFFile()); -} - -template <class ELFT> void ELFDumper<ELFT>::printAddrsig() { - ELFDumperStyle->printAddrsig(ObjF->getELFFile()); -} - -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> -static std::string getSectionHeadersNumString(const ELFFile<ELFT> *Obj) { - const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); - if (ElfHeader->e_shnum != 0) - return to_string(ElfHeader->e_shnum); - - ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); - if (Arr.empty()) - return "0"; - return "0 (" + to_string(Arr[0].sh_size) + ")"; -} - -template <class ELFT> -static std::string getSectionHeaderTableIndexString(const ELFFile<ELFT> *Obj) { - const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); - if (ElfHeader->e_shstrndx != SHN_XINDEX) - return to_string(ElfHeader->e_shstrndx); - - ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); - if (Arr.empty()) - return "65535 (corrupt: out of range)"; - return to_string(ElfHeader->e_shstrndx) + " (" + to_string(Arr[0].sh_link) + ")"; -} - -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_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); - std::string ElfFlags; - if (e->e_machine == EM_MIPS) - ElfFlags = - printFlags(e->e_flags, makeArrayRef(ElfHeaderMipsFlags), - unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), - unsigned(ELF::EF_MIPS_MACH)); - else if (e->e_machine == EM_RISCV) - ElfFlags = printFlags(e->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); - Str = "0x" + to_hexString(e->e_flags); - if (!ElfFlags.empty()) - Str = Str + ", " + ElfFlags; - 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 = getSectionHeadersNumString(Obj); - printFields(OS, "Number of section headers:", Str); - Str = getSectionHeaderTableIndexString(Obj); - printFields(OS, "Section header string table index:", Str); -} - -namespace { -struct GroupMember { - StringRef Name; - uint64_t Index; -}; - -struct GroupSection { - StringRef Name; - StringRef Signature; - uint64_t ShName; - uint64_t Index; - uint32_t Link; - uint32_t Info; - uint32_t Type; - std::vector<GroupMember> Members; -}; - -template <class ELFT> -std::vector<GroupSection> getGroups(const ELFFile<ELFT> *Obj) { - using Elf_Shdr = typename ELFT::Shdr; - using Elf_Sym = typename ELFT::Sym; - using Elf_Word = typename ELFT::Word; - - std::vector<GroupSection> Ret; - uint64_t I = 0; - for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { - ++I; - if (Sec.sh_type != ELF::SHT_GROUP) - continue; - - const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); - StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); - const Elf_Sym *Sym = - unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); - auto Data = - unwrapOrError(Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); - - StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); - StringRef Signature = StrTable.data() + Sym->st_name; - Ret.push_back({Name, - Signature, - Sec.sh_name, - I - 1, - Sec.sh_link, - Sec.sh_info, - Data[0], - {}}); - - std::vector<GroupMember> &GM = Ret.back().Members; - for (uint32_t Ndx : Data.slice(1)) { - auto Sec = unwrapOrError(Obj->getSection(Ndx)); - const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); - GM.push_back({Name, Ndx}); - } - } - return Ret; -} - -DenseMap<uint64_t, const GroupSection *> -mapSectionsToGroups(ArrayRef<GroupSection> Groups) { - DenseMap<uint64_t, const GroupSection *> Ret; - for (const GroupSection &G : Groups) - for (const GroupMember &GM : G.Members) - Ret.insert({GM.Index, &G}); - return Ret; -} - -} // namespace - -template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) { - std::vector<GroupSection> V = getGroups<ELFT>(Obj); - DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); - for (const GroupSection &G : V) { - OS << "\n" - << getGroupType(G.Type) << " group section [" - << format_decimal(G.Index, 5) << "] `" << G.Name << "' [" << G.Signature - << "] contains " << G.Members.size() << " sections:\n" - << " [Index] Name\n"; - for (const GroupMember &GM : G.Members) { - const GroupSection *MainGroup = Map[GM.Index]; - if (MainGroup != &G) { - OS.flush(); - errs() << "Error: section [" << format_decimal(GM.Index, 5) - << "] in group section [" << format_decimal(G.Index, 5) - << "] already in group section [" - << format_decimal(MainGroup->Index, 5) << "]"; - errs().flush(); - continue; - } - OS << " [" << format_decimal(GM.Index, 5) << "] " << GM.Name << "\n"; - } - } - - if (V.empty()) - 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 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 = unwrapOrError(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) { - StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); - 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"; -} - -template <class ELFT> void GNUStyle<ELFT>::printRelocHeader(unsigned SType) { - bool IsRela = SType == ELF::SHT_RELA || SType == ELF::SHT_ANDROID_RELA; - bool IsRelr = SType == ELF::SHT_RELR || SType == ELF::SHT_ANDROID_RELR; - if (ELFT::Is64Bits) - OS << " "; - else - OS << " "; - if (IsRelr && opts::RawRelr) - OS << "Data "; - else - OS << "Offset"; - if (ELFT::Is64Bits) - OS << " Info Type" - << " Symbol's Value Symbol's Name"; - else - OS << " Info Type Sym. Value Symbol's Name"; - if (IsRela) - OS << " + Addend"; - OS << "\n"; -} - -template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) { - bool HasRelocSections = false; - for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { - if (Sec.sh_type != ELF::SHT_REL && - Sec.sh_type != ELF::SHT_RELA && - Sec.sh_type != ELF::SHT_RELR && - Sec.sh_type != ELF::SHT_ANDROID_REL && - Sec.sh_type != ELF::SHT_ANDROID_RELA && - Sec.sh_type != ELF::SHT_ANDROID_RELR) - continue; - HasRelocSections = true; - StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); - unsigned Entries = Sec.getEntityCount(); - std::vector<Elf_Rela> AndroidRelas; - if (Sec.sh_type == ELF::SHT_ANDROID_REL || - Sec.sh_type == ELF::SHT_ANDROID_RELA) { - // Android's packed relocation section needs to be unpacked first - // to get the actual number of entries. - AndroidRelas = unwrapOrError(Obj->android_relas(&Sec)); - Entries = AndroidRelas.size(); - } - std::vector<Elf_Rela> RelrRelas; - if (!opts::RawRelr && (Sec.sh_type == ELF::SHT_RELR || - Sec.sh_type == ELF::SHT_ANDROID_RELR)) { - // .relr.dyn relative relocation section needs to be unpacked first - // to get the actual number of entries. - Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(&Sec)); - RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); - Entries = RelrRelas.size(); - } - uintX_t Offset = Sec.sh_offset; - OS << "\nRelocation section '" << Name << "' at offset 0x" - << to_hexString(Offset, false) << " contains " << Entries - << " entries:\n"; - printRelocHeader(Sec.sh_type); - const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link)); - switch (Sec.sh_type) { - case ELF::SHT_REL: - for (const auto &R : unwrapOrError(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); - } - break; - case ELF::SHT_RELA: - for (const auto &R : unwrapOrError(Obj->relas(&Sec))) - printRelocation(Obj, SymTab, R, true); - break; - case ELF::SHT_RELR: - case ELF::SHT_ANDROID_RELR: - if (opts::RawRelr) - for (const auto &R : unwrapOrError(Obj->relrs(&Sec))) - OS << to_string(format_hex_no_prefix(R, ELFT::Is64Bits ? 16 : 8)) - << "\n"; - else - for (const auto &R : RelrRelas) - printRelocation(Obj, SymTab, R, false); - break; - case ELF::SHT_ANDROID_REL: - case ELF::SHT_ANDROID_RELA: - for (const auto &R : AndroidRelas) - printRelocation(Obj, SymTab, R, Sec.sh_type == ELF::SHT_ANDROID_RELA); - break; - } - } - 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"; - } - break; - case EM_X86_64: - switch (Type) { - case SHT_X86_64_UNWIND: - return "X86_64_UNWIND"; - } - break; - 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"; - case SHT_MIPS_DWARF: - return "SHT_MIPS_DWARF"; - } - break; - } - 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"; - case SHT_RELR: - case SHT_ANDROID_RELR: - return "RELR"; - case SHT_LLVM_ODRTAB: - return "LLVM_ODRTAB"; - case SHT_LLVM_LINKER_OPTIONS: - return "LLVM_LINKER_OPTIONS"; - case SHT_LLVM_CALL_GRAPH_PROFILE: - return "LLVM_CALL_GRAPH_PROFILE"; - case SHT_LLVM_ADDRSIG: - return "LLVM_ADDRSIG"; - // 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>::printSectionHeaders(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; - } - - ArrayRef<Elf_Shdr> Sections = unwrapOrError(Obj->sections()); - OS << "There are " << to_string(Sections.size()) - << " 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 : 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.empty()) - 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 = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( - Symbol, FirstSym, this->dumper()->getShndxTable())); - LLVM_FALLTHROUGH; - 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>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, - uint32_t Sym, StringRef StrTable, - uint32_t Bucket) { - std::string Num, Buc, Name, Value, Size, Binding, Type, Visibility, Section; - unsigned Width, Bias = 0; - if (ELFT::Is64Bits) { - Bias = 8; - Width = 16; - } else { - Bias = 0; - Width = 8; - } - Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias, - 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias}; - Num = to_string(format_decimal(Sym, 5)); - Buc = to_string(format_decimal(Bucket, 3)) + ":"; - - const auto Symbol = FirstSym + Sym; - 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, true); - Fields[0].Str = Num; - Fields[1].Str = Buc; - Fields[2].Str = Value; - Fields[3].Str = Size; - Fields[4].Str = Type; - Fields[5].Str = Binding; - Fields[6].Str = Visibility; - Fields[7].Str = Section; - Fields[8].Str = Name; - for (auto &Entry : Fields) - printField(Entry); - OS << "\n"; -} - -template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) { - if (opts::DynamicSymbols) - return; - this->dumper()->printSymbolsHelper(true); - this->dumper()->printSymbolsHelper(false); -} - -template <class ELFT> -void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { - if (this->dumper()->getDynamicStringTable().empty()) - return; - auto StringTable = this->dumper()->getDynamicStringTable(); - auto DynSyms = this->dumper()->dynamic_symbols(); - auto GnuHash = this->dumper()->getGnuHashTable(); - auto SysVHash = this->dumper()->getHashTable(); - - // If no hash or .gnu.hash found, try using symbol table - if (GnuHash == nullptr && SysVHash == nullptr) - this->dumper()->printSymbolsHelper(true); - - // Try printing .hash - if (this->dumper()->getHashTable()) { - OS << "\n Symbol table of .hash for image:\n"; - if (ELFT::Is64Bits) - OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; - else - OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; - OS << "\n"; - - uint32_t NBuckets = SysVHash->nbucket; - uint32_t NChains = SysVHash->nchain; - auto Buckets = SysVHash->buckets(); - auto Chains = SysVHash->chains(); - for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { - if (Buckets[Buc] == ELF::STN_UNDEF) - continue; - for (uint32_t Ch = Buckets[Buc]; Ch < NChains; Ch = Chains[Ch]) { - if (Ch == ELF::STN_UNDEF) - break; - printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc); - } - } - } - - // Try printing .gnu.hash - if (GnuHash) { - OS << "\n Symbol table of .gnu.hash for image:\n"; - if (ELFT::Is64Bits) - OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; - else - OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; - OS << "\n"; - uint32_t NBuckets = GnuHash->nbuckets; - auto Buckets = GnuHash->buckets(); - for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { - if (Buckets[Buc] == ELF::STN_UNDEF) - continue; - uint32_t Index = Buckets[Buc]; - uint32_t GnuHashable = Index - GnuHash->symndx; - // Print whole chain - while (true) { - printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc); - // Chain ends at symbol with stopper bit - if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1) - break; - } - } - } -} - -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 : unwrapOrError(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 : unwrapOrError(Obj->program_headers())) { - std::string Sections; - OS << format(" %2.2d ", Phnum++); - for (const Elf_Shdr &Sec : unwrapOrError(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.empty() && IsRela) { - if (R.r_addend < 0) - Addend = " - "; - else - Addend = " + "; - } - - if (SymbolName.empty() && 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 &DynRelrRegion = this->dumper()->getDynRelrRegion(); - 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(ELF::SHT_RELA); - 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(ELF::SHT_REL); - 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 (DynRelrRegion.Size > 0) { - OS << "\n'RELR' relocation section at offset " - << format_hex(reinterpret_cast<const uint8_t *>(DynRelrRegion.Addr) - - Obj->base(), - 1) << " contains " << DynRelrRegion.Size << " bytes:\n"; - printRelocHeader(ELF::SHT_REL); - Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); - std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); - for (const Elf_Rela &Rela : RelrRelas) { - 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(ELF::SHT_RELA); - for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) - printDynamicRelocation(Obj, Rela, true); - } else { - printRelocHeader(ELF::SHT_REL); - 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.empty() || 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 GNUStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { - OS << "GNUStyle::printCGProfile not implemented\n"; -} - -template <class ELFT> -void GNUStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { - OS << "GNUStyle::printAddrsig not implemented\n"; -} - -static std::string getGNUNoteTypeName(const uint32_t NT) { - static const struct { - uint32_t ID; - const char *Name; - } Notes[] = { - {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"}, - {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"}, - {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"}, - {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"}, - {ELF::NT_GNU_PROPERTY_TYPE_0, "NT_GNU_PROPERTY_TYPE_0 (property note)"}, - }; - - for (const auto &Note : Notes) - if (Note.ID == NT) - return std::string(Note.Name); - - std::string string; - raw_string_ostream OS(string); - OS << format("Unknown note type (0x%08x)", NT); - return OS.str(); -} - -static std::string getFreeBSDNoteTypeName(const uint32_t NT) { - static const struct { - uint32_t ID; - const char *Name; - } Notes[] = { - {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"}, - {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"}, - {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"}, - {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"}, - {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"}, - {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"}, - {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"}, - {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"}, - {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS, - "NT_PROCSTAT_PSSTRINGS (ps_strings data)"}, - {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"}, - }; - - for (const auto &Note : Notes) - if (Note.ID == NT) - return std::string(Note.Name); - - std::string string; - raw_string_ostream OS(string); - OS << format("Unknown note type (0x%08x)", NT); - return OS.str(); -} - -static std::string getAMDNoteTypeName(const uint32_t NT) { - static const struct { - uint32_t ID; - const char *Name; - } Notes[] = { - {ELF::NT_AMD_AMDGPU_HSA_METADATA, - "NT_AMD_AMDGPU_HSA_METADATA (HSA Metadata)"}, - {ELF::NT_AMD_AMDGPU_ISA, - "NT_AMD_AMDGPU_ISA (ISA Version)"}, - {ELF::NT_AMD_AMDGPU_PAL_METADATA, - "NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)"} - }; - - for (const auto &Note : Notes) - if (Note.ID == NT) - return std::string(Note.Name); - - std::string string; - raw_string_ostream OS(string); - OS << format("Unknown note type (0x%08x)", NT); - return OS.str(); -} - -static std::string getAMDGPUNoteTypeName(const uint32_t NT) { - if (NT == ELF::NT_AMDGPU_METADATA) - return std::string("NT_AMDGPU_METADATA (AMDGPU Metadata)"); - - std::string string; - raw_string_ostream OS(string); - OS << format("Unknown note type (0x%08x)", NT); - return OS.str(); -} - -template <typename ELFT> -static std::string getGNUProperty(uint32_t Type, uint32_t DataSize, - ArrayRef<uint8_t> Data) { - std::string str; - raw_string_ostream OS(str); - switch (Type) { - default: - OS << format("<application-specific type 0x%x>", Type); - return OS.str(); - case GNU_PROPERTY_STACK_SIZE: { - OS << "stack size: "; - if (DataSize == sizeof(typename ELFT::uint)) - OS << formatv("{0:x}", - (uint64_t)(*(const typename ELFT::Addr *)Data.data())); - else - OS << format("<corrupt length: 0x%x>", DataSize); - return OS.str(); - } - case GNU_PROPERTY_NO_COPY_ON_PROTECTED: - OS << "no copy on protected"; - if (DataSize) - OS << format(" <corrupt length: 0x%x>", DataSize); - return OS.str(); - case GNU_PROPERTY_X86_FEATURE_1_AND: - OS << "X86 features: "; - if (DataSize != 4 && DataSize != 8) { - OS << format("<corrupt length: 0x%x>", DataSize); - return OS.str(); - } - uint64_t CFProtection = - (DataSize == 4) - ? support::endian::read32<ELFT::TargetEndianness>(Data.data()) - : support::endian::read64<ELFT::TargetEndianness>(Data.data()); - if (CFProtection == 0) { - OS << "none"; - return OS.str(); - } - if (CFProtection & GNU_PROPERTY_X86_FEATURE_1_IBT) { - OS << "IBT"; - CFProtection &= ~GNU_PROPERTY_X86_FEATURE_1_IBT; - if (CFProtection) - OS << ", "; - } - if (CFProtection & GNU_PROPERTY_X86_FEATURE_1_SHSTK) { - OS << "SHSTK"; - CFProtection &= ~GNU_PROPERTY_X86_FEATURE_1_SHSTK; - if (CFProtection) - OS << ", "; - } - if (CFProtection) - OS << format("<unknown flags: 0x%llx>", CFProtection); - return OS.str(); - } -} - -template <typename ELFT> -static SmallVector<std::string, 4> -getGNUPropertyList(ArrayRef<uint8_t> Arr) { - using Elf_Word = typename ELFT::Word; - - SmallVector<std::string, 4> Properties; - while (Arr.size() >= 8) { - uint32_t Type = *reinterpret_cast<const Elf_Word *>(Arr.data()); - uint32_t DataSize = *reinterpret_cast<const Elf_Word *>(Arr.data() + 4); - Arr = Arr.drop_front(8); - - // Take padding size into account if present. - uint64_t PaddedSize = alignTo(DataSize, sizeof(typename ELFT::uint)); - std::string str; - raw_string_ostream OS(str); - if (Arr.size() < PaddedSize) { - OS << format("<corrupt type (0x%x) datasz: 0x%x>", Type, DataSize); - Properties.push_back(OS.str()); - break; - } - Properties.push_back( - getGNUProperty<ELFT>(Type, DataSize, Arr.take_front(PaddedSize))); - Arr = Arr.drop_front(PaddedSize); - } - - if (!Arr.empty()) - Properties.push_back("<corrupted GNU_PROPERTY_TYPE_0>"); - - return Properties; -} - -struct GNUAbiTag { - std::string OSName; - std::string ABI; - bool IsValid; -}; - -template <typename ELFT> -static GNUAbiTag getGNUAbiTag(ArrayRef<uint8_t> Desc) { - typedef typename ELFT::Word Elf_Word; - - ArrayRef<Elf_Word> Words(reinterpret_cast<const Elf_Word*>(Desc.begin()), - reinterpret_cast<const Elf_Word*>(Desc.end())); - - if (Words.size() < 4) - return {"", "", /*IsValid=*/false}; - - static const char *OSNames[] = { - "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl", - }; - StringRef OSName = "Unknown"; - if (Words[0] < array_lengthof(OSNames)) - OSName = OSNames[Words[0]]; - uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3]; - std::string str; - raw_string_ostream ABI(str); - ABI << Major << "." << Minor << "." << Patch; - return {OSName, ABI.str(), /*IsValid=*/true}; -} - -static std::string getGNUBuildId(ArrayRef<uint8_t> Desc) { - std::string str; - raw_string_ostream OS(str); - for (const auto &B : Desc) - OS << format_hex_no_prefix(B, 2); - return OS.str(); -} - -static StringRef getGNUGoldVersion(ArrayRef<uint8_t> Desc) { - return StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size()); -} - -template <typename ELFT> -static void printGNUNote(raw_ostream &OS, uint32_t NoteType, - ArrayRef<uint8_t> Desc) { - switch (NoteType) { - default: - return; - case ELF::NT_GNU_ABI_TAG: { - const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc); - if (!AbiTag.IsValid) - OS << " <corrupt GNU_ABI_TAG>"; - else - OS << " OS: " << AbiTag.OSName << ", ABI: " << AbiTag.ABI; - break; - } - case ELF::NT_GNU_BUILD_ID: { - OS << " Build ID: " << getGNUBuildId(Desc); - break; - } - case ELF::NT_GNU_GOLD_VERSION: - OS << " Version: " << getGNUGoldVersion(Desc); - break; - case ELF::NT_GNU_PROPERTY_TYPE_0: - OS << " Properties:"; - for (const auto &Property : getGNUPropertyList<ELFT>(Desc)) - OS << " " << Property << "\n"; - break; - } - OS << '\n'; -} - -struct AMDNote { - std::string Type; - std::string Value; -}; - -template <typename ELFT> -static AMDNote getAMDNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) { - switch (NoteType) { - default: - return {"", ""}; - case ELF::NT_AMD_AMDGPU_HSA_METADATA: - return {"HSA Metadata", - std::string(reinterpret_cast<const char *>(Desc.data()), - Desc.size())}; - case ELF::NT_AMD_AMDGPU_ISA: - return {"ISA Version", - std::string(reinterpret_cast<const char *>(Desc.data()), - Desc.size())}; - case ELF::NT_AMD_AMDGPU_PAL_METADATA: - const uint32_t *PALMetadataBegin = - reinterpret_cast<const uint32_t *>(Desc.data()); - const uint32_t *PALMetadataEnd = PALMetadataBegin + Desc.size(); - std::vector<uint32_t> PALMetadata(PALMetadataBegin, PALMetadataEnd); - std::string PALMetadataString; - auto Error = AMDGPU::PALMD::toString(PALMetadata, PALMetadataString); - if (Error) { - return {"PAL Metadata", "Invalid"}; - } - return {"PAL Metadata", PALMetadataString}; - } -} - -struct AMDGPUNote { - std::string Type; - std::string Value; -}; - -template <typename ELFT> -static AMDGPUNote getAMDGPUNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) { - switch (NoteType) { - default: - return {"", ""}; - case ELF::NT_AMDGPU_METADATA: - auto MsgPackString = - StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size()); - msgpack::Reader MsgPackReader(MsgPackString); - auto OptMsgPackNodeOrErr = msgpack::Node::read(MsgPackReader); - if (errorToBool(OptMsgPackNodeOrErr.takeError())) - return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; - auto &OptMsgPackNode = *OptMsgPackNodeOrErr; - if (!OptMsgPackNode) - return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; - auto &MsgPackNode = *OptMsgPackNode; - - AMDGPU::HSAMD::V3::MetadataVerifier Verifier(true); - if (!Verifier.verify(*MsgPackNode)) - return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"}; - - std::string HSAMetadataString; - raw_string_ostream StrOS(HSAMetadataString); - yaml::Output YOut(StrOS); - YOut << MsgPackNode; - - return {"AMDGPU Metadata", StrOS.str()}; - } -} - -template <class ELFT> -void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { - const Elf_Ehdr *e = Obj->getHeader(); - bool IsCore = e->e_type == ELF::ET_CORE; - - auto PrintHeader = [&](const typename ELFT::Off Offset, - const typename ELFT::Addr Size) { - OS << "Displaying notes found at file offset " << format_hex(Offset, 10) - << " with length " << format_hex(Size, 10) << ":\n" - << " Owner Data size\tDescription\n"; - }; - - auto ProcessNote = [&](const Elf_Note &Note) { - StringRef Name = Note.getName(); - ArrayRef<uint8_t> Descriptor = Note.getDesc(); - Elf_Word Type = Note.getType(); - - OS << " " << Name << std::string(22 - Name.size(), ' ') - << format_hex(Descriptor.size(), 10) << '\t'; - - if (Name == "GNU") { - OS << getGNUNoteTypeName(Type) << '\n'; - printGNUNote<ELFT>(OS, Type, Descriptor); - } else if (Name == "FreeBSD") { - OS << getFreeBSDNoteTypeName(Type) << '\n'; - } else if (Name == "AMD") { - OS << getAMDNoteTypeName(Type) << '\n'; - const AMDNote N = getAMDNote<ELFT>(Type, Descriptor); - if (!N.Type.empty()) - OS << " " << N.Type << ":\n " << N.Value << '\n'; - } else if (Name == "AMDGPU") { - OS << getAMDGPUNoteTypeName(Type) << '\n'; - const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor); - if (!N.Type.empty()) - OS << " " << N.Type << ":\n " << N.Value << '\n'; - } else { - OS << "Unknown note type: (" << format_hex(Type, 10) << ')'; - } - OS << '\n'; - }; - - if (IsCore) { - for (const auto &P : unwrapOrError(Obj->program_headers())) { - if (P.p_type != PT_NOTE) - continue; - PrintHeader(P.p_offset, P.p_filesz); - Error Err = Error::success(); - for (const auto &Note : Obj->notes(P, Err)) - ProcessNote(Note); - if (Err) - error(std::move(Err)); - } - } else { - for (const auto &S : unwrapOrError(Obj->sections())) { - if (S.sh_type != SHT_NOTE) - continue; - PrintHeader(S.sh_offset, S.sh_size); - Error Err = Error::success(); - for (const auto &Note : Obj->notes(S, Err)) - ProcessNote(Note); - if (Err) - error(std::move(Err)); - } - } -} - -template <class ELFT> -void GNUStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { - OS << "printELFLinkerOptions not implemented!\n"; -} - -template <class ELFT> -void GNUStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { - size_t Bias = ELFT::Is64Bits ? 8 : 0; - auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { - OS.PadToColumn(2); - OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); - OS.PadToColumn(11 + Bias); - OS << format_decimal(Parser.getGotOffset(E), 6) << "(gp)"; - OS.PadToColumn(22 + Bias); - OS << format_hex_no_prefix(*E, 8 + Bias); - OS.PadToColumn(31 + 2 * Bias); - OS << Purpose << "\n"; - }; - - OS << (Parser.IsStatic ? "Static GOT:\n" : "Primary GOT:\n"); - OS << " Canonical gp value: " - << format_hex_no_prefix(Parser.getGp(), 8 + Bias) << "\n\n"; - - OS << " Reserved entries:\n"; - OS << " Address Access Initial Purpose\n"; - PrintEntry(Parser.getGotLazyResolver(), "Lazy resolver"); - if (Parser.getGotModulePointer()) - PrintEntry(Parser.getGotModulePointer(), "Module pointer (GNU extension)"); - - if (!Parser.getLocalEntries().empty()) { - OS << "\n"; - OS << " Local entries:\n"; - OS << " Address Access Initial\n"; - for (auto &E : Parser.getLocalEntries()) - PrintEntry(&E, ""); - } - - if (Parser.IsStatic) - return; - - if (!Parser.getGlobalEntries().empty()) { - OS << "\n"; - OS << " Global entries:\n"; - OS << " Address Access Initial Sym.Val. Type Ndx Name\n"; - for (auto &E : Parser.getGlobalEntries()) { - const Elf_Sym *Sym = Parser.getGotSym(&E); - std::string SymName = this->dumper()->getFullSymbolName( - Sym, this->dumper()->getDynamicStringTable(), false); - - OS.PadToColumn(2); - OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); - OS.PadToColumn(11 + Bias); - OS << to_string(format_decimal(Parser.getGotOffset(&E), 6)) + "(gp)"; - OS.PadToColumn(22 + Bias); - OS << to_string(format_hex_no_prefix(E, 8 + Bias)); - OS.PadToColumn(31 + 2 * Bias); - OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); - OS.PadToColumn(40 + 3 * Bias); - OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); - OS.PadToColumn(48 + 3 * Bias); - OS << getSymbolSectionNdx(Parser.Obj, Sym, - this->dumper()->dynamic_symbols().begin()); - OS.PadToColumn(52 + 3 * Bias); - OS << SymName << "\n"; - } - } - - if (!Parser.getOtherEntries().empty()) - OS << "\n Number of TLS and multi-GOT entries " - << Parser.getOtherEntries().size() << "\n"; -} - -template <class ELFT> -void GNUStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { - size_t Bias = ELFT::Is64Bits ? 8 : 0; - auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { - OS.PadToColumn(2); - OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); - OS.PadToColumn(11 + Bias); - OS << format_hex_no_prefix(*E, 8 + Bias); - OS.PadToColumn(20 + 2 * Bias); - OS << Purpose << "\n"; - }; - - OS << "PLT GOT:\n\n"; - - OS << " Reserved entries:\n"; - OS << " Address Initial Purpose\n"; - PrintEntry(Parser.getPltLazyResolver(), "PLT lazy resolver"); - if (Parser.getPltModulePointer()) - PrintEntry(Parser.getGotModulePointer(), "Module pointer"); - - if (!Parser.getPltEntries().empty()) { - OS << "\n"; - OS << " Entries:\n"; - OS << " Address Initial Sym.Val. Type Ndx Name\n"; - for (auto &E : Parser.getPltEntries()) { - const Elf_Sym *Sym = Parser.getPltSym(&E); - std::string SymName = this->dumper()->getFullSymbolName( - Sym, this->dumper()->getDynamicStringTable(), false); - - OS.PadToColumn(2); - OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); - OS.PadToColumn(11 + Bias); - OS << to_string(format_hex_no_prefix(E, 8 + Bias)); - OS.PadToColumn(20 + 2 * Bias); - OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); - OS.PadToColumn(29 + 3 * Bias); - OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); - OS.PadToColumn(37 + 3 * Bias); - OS << getSymbolSectionNdx(Parser.Obj, Sym, - this->dumper()->dynamic_symbols().begin()); - OS.PadToColumn(41 + 3 * Bias); - OS << SymName << "\n"; - } - } -} - -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]); - - auto OSABI = makeArrayRef(ElfOSABI); - if (e->e_ident[ELF::EI_OSABI] >= ELF::ELFOSABI_FIRST_ARCH && - e->e_ident[ELF::EI_OSABI] <= ELF::ELFOSABI_LAST_ARCH) { - switch (e->e_machine) { - case ELF::EM_AMDGPU: - OSABI = makeArrayRef(AMDGPUElfOSABI); - break; - case ELF::EM_ARM: - OSABI = makeArrayRef(ARMElfOSABI); - break; - case ELF::EM_TI_C6000: - OSABI = makeArrayRef(C6000ElfOSABI); - break; - } - } - W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI], OSABI); - 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 if (e->e_machine == EM_AMDGPU) - W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderAMDGPUFlags), - unsigned(ELF::EF_AMDGPU_MACH)); - else if (e->e_machine == EM_RISCV) - W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); - 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.printString("SectionHeaderCount", getSectionHeadersNumString(Obj)); - W.printString("StringTableSectionIndex", getSectionHeaderTableIndexString(Obj)); - } -} - -template <class ELFT> -void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) { - DictScope Lists(W, "Groups"); - std::vector<GroupSection> V = getGroups<ELFT>(Obj); - DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); - for (const GroupSection &G : V) { - DictScope D(W, "Group"); - W.printNumber("Name", G.Name, G.ShName); - W.printNumber("Index", G.Index); - W.printNumber("Link", G.Link); - W.printNumber("Info", G.Info); - W.printHex("Type", getGroupType(G.Type), G.Type); - W.startLine() << "Signature: " << G.Signature << "\n"; - - ListScope L(W, "Section(s) in group"); - for (const GroupMember &GM : G.Members) { - const GroupSection *MainGroup = Map[GM.Index]; - if (MainGroup != &G) { - W.flush(); - errs() << "Error: " << GM.Name << " (" << GM.Index - << ") in a group " + G.Name + " (" << G.Index - << ") is already in a group " + MainGroup->Name + " (" - << MainGroup->Index << ")\n"; - errs().flush(); - continue; - } - W.startLine() << GM.Name << " (" << GM.Index << ")\n"; - } - } - - if (V.empty()) - 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 : unwrapOrError(Obj->sections())) { - ++SectionNumber; - - if (Sec.sh_type != ELF::SHT_REL && - Sec.sh_type != ELF::SHT_RELA && - Sec.sh_type != ELF::SHT_RELR && - Sec.sh_type != ELF::SHT_ANDROID_REL && - Sec.sh_type != ELF::SHT_ANDROID_RELA && - Sec.sh_type != ELF::SHT_ANDROID_RELR) - 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 : unwrapOrError(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 : unwrapOrError(Obj->relas(Sec))) - printRelocation(Obj, R, SymTab); - break; - case ELF::SHT_RELR: - case ELF::SHT_ANDROID_RELR: { - Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(Sec)); - if (opts::RawRelr) { - for (const Elf_Relr &R : Relrs) - W.startLine() << W.hex(R) << "\n"; - } else { - std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); - for (const Elf_Rela &R : RelrRelas) - printRelocation(Obj, R, SymTab); - } - break; - } - case ELF::SHT_ANDROID_REL: - case ELF::SHT_ANDROID_RELA: - for (const Elf_Rela &R : unwrapOrError(Obj->android_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 = unwrapOrError(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.empty() ? 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.empty() ? TargetName : "-") << " " - << W.hex(Rel.r_addend) << "\n"; - } -} - -template <class ELFT> -void LLVMStyle<ELFT>::printSectionHeaders(const ELFO *Obj) { - ListScope SectionsD(W, "Sections"); - - int SectionIndex = -1; - for (const Elf_Shdr &Sec : unwrapOrError(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", - object::getELFSectionTypeName(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_ARM: - SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags), - std::end(ElfARMSectionFlags)); - 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 : unwrapOrError(Obj->symbols(Symtab))) { - const Elf_Shdr *SymSec = unwrapOrError( - Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable())); - if (SymSec == &Sec) - printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(), - 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; - this->dumper()->getSectionNameIndex(Symbol, First, 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 &DynRelrRegion = this->dumper()->getDynRelrRegion(); - 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 (DynRelrRegion.Size > 0) { - Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); - std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); - for (const Elf_Rela &Rela : RelrRelas) - 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.empty() ? SymbolName : "-"); - W.printHex("Addend", Rel.r_addend); - } else { - raw_ostream &OS = W.startLine(); - OS << W.hex(Rel.r_offset) << " " << RelocName << " " - << (!SymbolName.empty() ? SymbolName : "-") << " " - << W.hex(Rel.r_addend) << "\n"; - } -} - -template <class ELFT> -void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { - ListScope L(W, "ProgramHeaders"); - - for (const Elf_Phdr &Phdr : unwrapOrError(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"; -} - -template <class ELFT> -void LLVMStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { - ListScope L(W, "CGProfile"); - if (!this->dumper()->getDotCGProfileSec()) - return; - auto CGProfile = - unwrapOrError(Obj->template getSectionContentsAsArray<Elf_CGProfile>( - this->dumper()->getDotCGProfileSec())); - for (const Elf_CGProfile &CGPE : CGProfile) { - DictScope D(W, "CGProfileEntry"); - W.printNumber("From", this->dumper()->getStaticSymbolName(CGPE.cgp_from), - CGPE.cgp_from); - W.printNumber("To", this->dumper()->getStaticSymbolName(CGPE.cgp_to), - CGPE.cgp_to); - W.printNumber("Weight", CGPE.cgp_weight); - } -} - -template <class ELFT> -void LLVMStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { - ListScope L(W, "Addrsig"); - if (!this->dumper()->getDotAddrsigSec()) - return; - ArrayRef<uint8_t> Contents = unwrapOrError( - Obj->getSectionContents(this->dumper()->getDotAddrsigSec())); - const uint8_t *Cur = Contents.begin(); - const uint8_t *End = Contents.end(); - while (Cur != End) { - unsigned Size; - const char *Err; - uint64_t SymIndex = decodeULEB128(Cur, &Size, End, &Err); - if (Err) - reportError(Err); - W.printNumber("Sym", this->dumper()->getStaticSymbolName(SymIndex), - SymIndex); - Cur += Size; - } -} - -template <typename ELFT> -static void printGNUNoteLLVMStyle(uint32_t NoteType, - ArrayRef<uint8_t> Desc, - ScopedPrinter &W) { - switch (NoteType) { - default: - return; - case ELF::NT_GNU_ABI_TAG: { - const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc); - if (!AbiTag.IsValid) { - W.printString("ABI", "<corrupt GNU_ABI_TAG>"); - } else { - W.printString("OS", AbiTag.OSName); - W.printString("ABI", AbiTag.ABI); - } - break; - } - case ELF::NT_GNU_BUILD_ID: { - W.printString("Build ID", getGNUBuildId(Desc)); - break; - } - case ELF::NT_GNU_GOLD_VERSION: - W.printString("Version", getGNUGoldVersion(Desc)); - break; - case ELF::NT_GNU_PROPERTY_TYPE_0: - ListScope D(W, "Property"); - for (const auto &Property : getGNUPropertyList<ELFT>(Desc)) - W.printString(Property); - break; - } -} - -template <class ELFT> -void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { - ListScope L(W, "Notes"); - const Elf_Ehdr *e = Obj->getHeader(); - bool IsCore = e->e_type == ELF::ET_CORE; - - auto PrintHeader = [&](const typename ELFT::Off Offset, - const typename ELFT::Addr Size) { - W.printHex("Offset", Offset); - W.printHex("Size", Size); - }; - - auto ProcessNote = [&](const Elf_Note &Note) { - DictScope D2(W, "Note"); - StringRef Name = Note.getName(); - ArrayRef<uint8_t> Descriptor = Note.getDesc(); - Elf_Word Type = Note.getType(); - - W.printString("Owner", Name); - W.printHex("Data size", Descriptor.size()); - if (Name == "GNU") { - W.printString("Type", getGNUNoteTypeName(Type)); - printGNUNoteLLVMStyle<ELFT>(Type, Descriptor, W); - } else if (Name == "FreeBSD") { - W.printString("Type", getFreeBSDNoteTypeName(Type)); - } else if (Name == "AMD") { - W.printString("Type", getAMDNoteTypeName(Type)); - const AMDNote N = getAMDNote<ELFT>(Type, Descriptor); - if (!N.Type.empty()) - W.printString(N.Type, N.Value); - } else if (Name == "AMDGPU") { - W.printString("Type", getAMDGPUNoteTypeName(Type)); - const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor); - if (!N.Type.empty()) - W.printString(N.Type, N.Value); - } else { - W.getOStream() << "Unknown note type: (" << format_hex(Type, 10) << ')'; - } - }; - - if (IsCore) { - for (const auto &P : unwrapOrError(Obj->program_headers())) { - if (P.p_type != PT_NOTE) - continue; - DictScope D(W, "NoteSection"); - PrintHeader(P.p_offset, P.p_filesz); - Error Err = Error::success(); - for (const auto &Note : Obj->notes(P, Err)) - ProcessNote(Note); - if (Err) - error(std::move(Err)); - } - } else { - for (const auto &S : unwrapOrError(Obj->sections())) { - if (S.sh_type != SHT_NOTE) - continue; - DictScope D(W, "NoteSection"); - PrintHeader(S.sh_offset, S.sh_size); - Error Err = Error::success(); - for (const auto &Note : Obj->notes(S, Err)) - ProcessNote(Note); - if (Err) - error(std::move(Err)); - } - } -} - -template <class ELFT> -void LLVMStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { - ListScope L(W, "LinkerOptions"); - - for (const Elf_Shdr &Shdr : unwrapOrError(Obj->sections())) { - if (Shdr.sh_type != ELF::SHT_LLVM_LINKER_OPTIONS) - continue; - - ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Shdr)); - for (const uint8_t *P = Contents.begin(), *E = Contents.end(); P < E; ) { - StringRef Key = StringRef(reinterpret_cast<const char *>(P)); - StringRef Value = - StringRef(reinterpret_cast<const char *>(P) + Key.size() + 1); - - W.printString(Key, Value); - - P = P + Key.size() + Value.size() + 2; - } - } -} - -template <class ELFT> -void LLVMStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { - auto PrintEntry = [&](const Elf_Addr *E) { - W.printHex("Address", Parser.getGotAddress(E)); - W.printNumber("Access", Parser.getGotOffset(E)); - W.printHex("Initial", *E); - }; - - DictScope GS(W, Parser.IsStatic ? "Static GOT" : "Primary GOT"); - - W.printHex("Canonical gp value", Parser.getGp()); - { - ListScope RS(W, "Reserved entries"); - { - DictScope D(W, "Entry"); - PrintEntry(Parser.getGotLazyResolver()); - W.printString("Purpose", StringRef("Lazy resolver")); - } - - if (Parser.getGotModulePointer()) { - DictScope D(W, "Entry"); - PrintEntry(Parser.getGotModulePointer()); - W.printString("Purpose", StringRef("Module pointer (GNU extension)")); - } - } - { - ListScope LS(W, "Local entries"); - for (auto &E : Parser.getLocalEntries()) { - DictScope D(W, "Entry"); - PrintEntry(&E); - } - } - - if (Parser.IsStatic) - return; - - { - ListScope GS(W, "Global entries"); - for (auto &E : Parser.getGlobalEntries()) { - DictScope D(W, "Entry"); - - PrintEntry(&E); - - const Elf_Sym *Sym = Parser.getGotSym(&E); - W.printHex("Value", Sym->st_value); - W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); - - unsigned SectionIndex = 0; - StringRef SectionName; - this->dumper()->getSectionNameIndex( - Sym, this->dumper()->dynamic_symbols().begin(), SectionName, - SectionIndex); - W.printHex("Section", SectionName, SectionIndex); - - std::string SymName = this->dumper()->getFullSymbolName( - Sym, this->dumper()->getDynamicStringTable(), true); - W.printNumber("Name", SymName, Sym->st_name); - } - } - - W.printNumber("Number of TLS and multi-GOT entries", - uint64_t(Parser.getOtherEntries().size())); -} - -template <class ELFT> -void LLVMStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { - auto PrintEntry = [&](const Elf_Addr *E) { - W.printHex("Address", Parser.getPltAddress(E)); - W.printHex("Initial", *E); - }; - - DictScope GS(W, "PLT GOT"); - - { - ListScope RS(W, "Reserved entries"); - { - DictScope D(W, "Entry"); - PrintEntry(Parser.getPltLazyResolver()); - W.printString("Purpose", StringRef("PLT lazy resolver")); - } - - if (auto E = Parser.getPltModulePointer()) { - DictScope D(W, "Entry"); - PrintEntry(E); - W.printString("Purpose", StringRef("Module pointer")); - } - } - { - ListScope LS(W, "Entries"); - for (auto &E : Parser.getPltEntries()) { - DictScope D(W, "Entry"); - PrintEntry(&E); - - const Elf_Sym *Sym = Parser.getPltSym(&E); - W.printHex("Value", Sym->st_value); - W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); - - unsigned SectionIndex = 0; - StringRef SectionName; - this->dumper()->getSectionNameIndex( - Sym, this->dumper()->dynamic_symbols().begin(), SectionName, - SectionIndex); - W.printHex("Section", SectionName, SectionIndex); - - std::string SymName = - this->dumper()->getFullSymbolName(Sym, Parser.getPltStrTable(), true); - W.printNumber("Name", SymName, Sym->st_name); - } - } -} |