//
//===----------------------------------------------------------------------===//
//
-// This file declares the MachOObjectFile class, which binds the MachOObject
-// class to the generic ObjectFile wrapper.
+// This file declares the MachOObjectFile class, which implement the ObjectFile
+// interface for MachO files.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Triple.h"
-#include "llvm/Object/MachOFormat.h"
#include "llvm/Object/ObjectFile.h"
-#include "llvm/Support/Endian.h"
#include "llvm/Support/MachO.h"
-#include "llvm/Support/raw_ostream.h"
namespace llvm {
namespace object {
-namespace MachOFormat {
- struct SectionBase {
- char Name[16];
- char SegmentName[16];
- };
-
- template<bool is64Bits>
- struct Section;
-
- template<>
- struct Section<false> {
- char Name[16];
- char SegmentName[16];
- support::ulittle32_t Address;
- support::ulittle32_t Size;
- support::ulittle32_t Offset;
- support::ulittle32_t Align;
- support::ulittle32_t RelocationTableOffset;
- support::ulittle32_t NumRelocationTableEntries;
- support::ulittle32_t Flags;
- support::ulittle32_t Reserved1;
- support::ulittle32_t Reserved2;
- };
-
- template<>
- struct Section<true> {
- char Name[16];
- char SegmentName[16];
- support::ulittle64_t Address;
- support::ulittle64_t Size;
- support::ulittle32_t Offset;
- support::ulittle32_t Align;
- support::ulittle32_t RelocationTableOffset;
- support::ulittle32_t NumRelocationTableEntries;
- support::ulittle32_t Flags;
- support::ulittle32_t Reserved1;
- support::ulittle32_t Reserved2;
- support::ulittle32_t Reserved3;
- };
-
- struct RelocationEntry {
- support::ulittle32_t Word0;
- support::ulittle32_t Word1;
- };
+/// DiceRef - This is a value type class that represents a single
+/// data in code entry in the table in a Mach-O object file.
+class DiceRef {
+ DataRefImpl DicePimpl;
+ const ObjectFile *OwningObject;
- struct SymbolTableEntryBase {
- support::ulittle32_t StringIndex;
- uint8_t Type;
- uint8_t SectionIndex;
- support::ulittle16_t Flags;
- };
-
- template<bool is64Bits>
- struct SymbolTableEntry;
-
- template<>
- struct SymbolTableEntry<false> {
- support::ulittle32_t StringIndex;
- uint8_t Type;
- uint8_t SectionIndex;
- support::ulittle16_t Flags;
- support::ulittle32_t Value;
- };
-
- template<>
- struct SymbolTableEntry<true> {
- support::ulittle32_t StringIndex;
- uint8_t Type;
- uint8_t SectionIndex;
- support::ulittle16_t Flags;
- support::ulittle64_t Value;
- };
-
- struct LoadCommand {
- support::ulittle32_t Type;
- support::ulittle32_t Size;
- };
-
- struct SymtabLoadCommand {
- support::ulittle32_t Type;
- support::ulittle32_t Size;
- support::ulittle32_t SymbolTableOffset;
- support::ulittle32_t NumSymbolTableEntries;
- support::ulittle32_t StringTableOffset;
- support::ulittle32_t StringTableSize;
- };
+public:
+ DiceRef() : OwningObject(nullptr) { }
- template<bool is64Bits>
- struct SegmentLoadCommand;
-
- template<>
- struct SegmentLoadCommand<false> {
- support::ulittle32_t Type;
- support::ulittle32_t Size;
- char Name[16];
- support::ulittle32_t VMAddress;
- support::ulittle32_t VMSize;
- support::ulittle32_t FileOffset;
- support::ulittle32_t FileSize;
- support::ulittle32_t MaxVMProtection;
- support::ulittle32_t InitialVMProtection;
- support::ulittle32_t NumSections;
- support::ulittle32_t Flags;
- };
+ DiceRef(DataRefImpl DiceP, const ObjectFile *Owner);
- template<>
- struct SegmentLoadCommand<true> {
- support::ulittle32_t Type;
- support::ulittle32_t Size;
- char Name[16];
- support::ulittle64_t VMAddress;
- support::ulittle64_t VMSize;
- support::ulittle64_t FileOffset;
- support::ulittle64_t FileSize;
- support::ulittle32_t MaxVMProtection;
- support::ulittle32_t InitialVMProtection;
- support::ulittle32_t NumSections;
- support::ulittle32_t Flags;
- };
+ bool operator==(const DiceRef &Other) const;
+ bool operator<(const DiceRef &Other) const;
- struct LinkeditDataLoadCommand {
- support::ulittle32_t Type;
- support::ulittle32_t Size;
- support::ulittle32_t DataOffset;
- support::ulittle32_t DataSize;
- };
+ void moveNext();
- struct Header {
- support::ulittle32_t Magic;
- support::ulittle32_t CPUType;
- support::ulittle32_t CPUSubtype;
- support::ulittle32_t FileType;
- support::ulittle32_t NumLoadCommands;
- support::ulittle32_t SizeOfLoadCommands;
- support::ulittle32_t Flags;
- };
-}
+ std::error_code getOffset(uint32_t &Result) const;
+ std::error_code getLength(uint16_t &Result) const;
+ std::error_code getKind(uint16_t &Result) const;
-class MachOObjectFileBase : public ObjectFile {
+ DataRefImpl getRawDataRefImpl() const;
+ const ObjectFile *getObjectFile() const;
+};
+typedef content_iterator<DiceRef> dice_iterator;
+
+/// ExportEntry encapsulates the current-state-of-the-walk used when doing a
+/// non-recursive walk of the trie data structure. This allows you to iterate
+/// across all exported symbols using:
+/// for (const llvm::object::ExportEntry &AnExport : Obj->exports()) {
+/// }
+class ExportEntry {
public:
- typedef MachOFormat::SymbolTableEntryBase SymbolTableEntryBase;
- typedef MachOFormat::SymtabLoadCommand SymtabLoadCommand;
- typedef MachOFormat::RelocationEntry RelocationEntry;
- typedef MachOFormat::SectionBase SectionBase;
- typedef MachOFormat::LoadCommand LoadCommand;
- typedef MachOFormat::Header Header;
-
- MachOObjectFileBase(MemoryBuffer *Object, bool Is64Bits, error_code &ec);
-
- virtual symbol_iterator begin_symbols() const;
- virtual symbol_iterator end_symbols() const;
- virtual symbol_iterator begin_dynamic_symbols() const;
- virtual symbol_iterator end_dynamic_symbols() const;
- virtual library_iterator begin_libraries_needed() const;
- virtual library_iterator end_libraries_needed() const;
- virtual section_iterator end_sections() const;
-
- virtual uint8_t getBytesInAddress() const;
- virtual StringRef getFileFormatName() const;
- virtual unsigned getArch() const;
- virtual StringRef getLoadName() const;
-
- // In a MachO file, sections have a segment name. This is used in the .o
- // files. They have a single segment, but this field specifies which segment
- // a section should be put in in the final object.
- StringRef getSectionFinalSegmentName(DataRefImpl Sec) const;
+ ExportEntry(ArrayRef<uint8_t> Trie);
- // Names are stored as 16 bytes. These returns the raw 16 bytes without
- // interpreting them as a C string.
- ArrayRef<char> getSectionRawName(DataRefImpl Sec) const;
- ArrayRef<char>getSectionRawFinalSegmentName(DataRefImpl Sec) const;
+ StringRef name() const;
+ uint64_t flags() const;
+ uint64_t address() const;
+ uint64_t other() const;
+ StringRef otherName() const;
+ uint32_t nodeOffset() const;
- bool is64Bit() const;
- const LoadCommand *getLoadCommandInfo(unsigned Index) const;
- void ReadULEB128s(uint64_t Index, SmallVectorImpl<uint64_t> &Out) const;
- const Header *getHeader() const;
- unsigned getHeaderSize() const;
- StringRef getData(size_t Offset, size_t Size) const;
-
- static inline bool classof(const Binary *v) {
- return v->isMachO();
- }
+ bool operator==(const ExportEntry &) const;
-protected:
- virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
- virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
- virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
- virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const;
- virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
- virtual error_code getSymbolSection(DataRefImpl Symb,
- section_iterator &Res) const;
- virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
- virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
- virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
- virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
- virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
- bool &Res) const;
- virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
- virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
- virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
-
- virtual error_code getRelocationNext(DataRefImpl Rel,
- RelocationRef &Res) const;
-
- virtual error_code getLibraryNext(DataRefImpl LibData, LibraryRef &Res) const;
- virtual error_code getLibraryPath(DataRefImpl LibData, StringRef &Res) const;
-
- std::size_t getSectionIndex(DataRefImpl Sec) const;
-
- typedef SmallVector<DataRefImpl, 1> SectionList;
- SectionList Sections;
-
- void moveToNextSymbol(DataRefImpl &DRI) const;
- void printRelocationTargetName(const RelocationEntry *RE,
- raw_string_ostream &fmt) const;
- const SectionBase *getSectionBase(DataRefImpl DRI) const;
- const SymbolTableEntryBase *getSymbolTableEntryBase(DataRefImpl DRI) const;
+ void moveNext();
private:
+ friend class MachOObjectFile;
+ void moveToFirst();
+ void moveToEnd();
+ uint64_t readULEB128(const uint8_t *&p);
+ void pushDownUntilBottom();
+ void pushNode(uint64_t Offset);
+
+ // Represents a node in the mach-o exports trie.
+ struct NodeState {
+ NodeState(const uint8_t *Ptr);
+ const uint8_t *Start;
+ const uint8_t *Current;
+ uint64_t Flags;
+ uint64_t Address;
+ uint64_t Other;
+ const char *ImportName;
+ unsigned ChildCount;
+ unsigned NextChildIndex;
+ unsigned ParentStringLength;
+ bool IsExportNode;
+ };
- const SymbolTableEntryBase *getSymbolTableEntryBase(DataRefImpl DRI,
- const SymtabLoadCommand *SymtabLoadCmd) const;
-};
-
-template<bool is64Bits>
-struct MachOObjectFileHelperCommon {
- typedef MachOFormat::SegmentLoadCommand<is64Bits> SegmentLoadCommand;
- typedef MachOFormat::SymbolTableEntry<is64Bits> SymbolTableEntry;
- typedef MachOFormat::Section<is64Bits> Section;
+ ArrayRef<uint8_t> Trie;
+ SmallString<256> CumulativeString;
+ SmallVector<NodeState, 16> Stack;
+ bool Malformed;
+ bool Done;
};
+typedef content_iterator<ExportEntry> export_iterator;
+
+/// MachORebaseEntry encapsulates the current state in the decompression of
+/// rebasing opcodes. This allows you to iterate through the compressed table of
+/// rebasing using:
+/// for (const llvm::object::MachORebaseEntry &Entry : Obj->rebaseTable()) {
+/// }
+class MachORebaseEntry {
+public:
+ MachORebaseEntry(ArrayRef<uint8_t> opcodes, bool is64Bit);
-template<bool is64Bits>
-struct MachOObjectFileHelper;
+ uint32_t segmentIndex() const;
+ uint64_t segmentOffset() const;
+ StringRef typeName() const;
-template<>
-struct MachOObjectFileHelper<false> :
- public MachOObjectFileHelperCommon<false> {
- static const macho::LoadCommandType SegmentLoadType = macho::LCT_Segment;
-};
+ bool operator==(const MachORebaseEntry &) const;
-template<>
-struct MachOObjectFileHelper<true> :
- public MachOObjectFileHelperCommon<true> {
- static const macho::LoadCommandType SegmentLoadType = macho::LCT_Segment64;
+ void moveNext();
+
+private:
+ friend class MachOObjectFile;
+ void moveToFirst();
+ void moveToEnd();
+ uint64_t readULEB128();
+
+ ArrayRef<uint8_t> Opcodes;
+ const uint8_t *Ptr;
+ uint64_t SegmentOffset;
+ uint32_t SegmentIndex;
+ uint64_t RemainingLoopCount;
+ uint64_t AdvanceAmount;
+ uint8_t RebaseType;
+ uint8_t PointerSize;
+ bool Malformed;
+ bool Done;
};
-
-template<bool is64Bits>
-class MachOObjectFile : public MachOObjectFileBase {
+typedef content_iterator<MachORebaseEntry> rebase_iterator;
+
+/// MachOBindEntry encapsulates the current state in the decompression of
+/// binding opcodes. This allows you to iterate through the compressed table of
+/// bindings using:
+/// for (const llvm::object::MachOBindEntry &Entry : Obj->bindTable()) {
+/// }
+class MachOBindEntry {
public:
- static const macho::LoadCommandType SegmentLoadType =
- MachOObjectFileHelper<is64Bits>::SegmentLoadType;
- typedef typename MachOObjectFileHelper<is64Bits>::SegmentLoadCommand
- SegmentLoadCommand;
- typedef typename MachOObjectFileHelper<is64Bits>::SymbolTableEntry
- SymbolTableEntry;
- typedef typename MachOObjectFileHelper<is64Bits>::Section Section;
-
- MachOObjectFile(MemoryBuffer *Object, error_code &ec) :
- MachOObjectFileBase(Object, is64Bits, ec) {
- DataRefImpl DRI;
- moveToNextSection(DRI);
- uint32_t LoadCommandCount = getHeader()->NumLoadCommands;
- while (DRI.d.a < LoadCommandCount) {
- Sections.push_back(DRI);
- DRI.d.b++;
- moveToNextSection(DRI);
- }
- }
-
- static inline bool classof(const Binary *v) {
- return v->getType() == getMachOType(true, is64Bits);
- }
-
- const Section *getSection(DataRefImpl DRI) const;
- const SymbolTableEntry *getSymbolTableEntry(DataRefImpl DRI) const;
- const RelocationEntry *getRelocation(DataRefImpl Rel) const;
-
- virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
- virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
- virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
- virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
- virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
- virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
- virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const;
- virtual error_code getRelocationAddress(DataRefImpl Rel, uint64_t &Res) const;
- virtual error_code getRelocationOffset(DataRefImpl Rel, uint64_t &Res) const;
- virtual error_code getRelocationSymbol(DataRefImpl Rel, SymbolRef &Res) const;
- virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel,
- int64_t &Res) const;
- virtual error_code getRelocationType(DataRefImpl Rel, uint64_t &Res) const;
- virtual error_code getRelocationTypeName(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const;
- virtual error_code getRelocationValueString(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const;
- virtual error_code getRelocationHidden(DataRefImpl Rel, bool &Result) const;
- virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
- virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
- bool &Result) const;
- virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
- virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
- virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
- virtual section_iterator begin_sections() const;
- void moveToNextSection(DataRefImpl &DRI) const;
-};
+ enum class Kind { Regular, Lazy, Weak };
-template<bool is64Bits>
-const typename MachOObjectFile<is64Bits>::Section *
-MachOObjectFile<is64Bits>::getSection(DataRefImpl DRI) const {
- const SectionBase *Addr = getSectionBase(DRI);
- return reinterpret_cast<const Section*>(Addr);
-}
+ MachOBindEntry(ArrayRef<uint8_t> Opcodes, bool is64Bit, MachOBindEntry::Kind);
-template<bool is64Bits>
-const typename MachOObjectFile<is64Bits>::SymbolTableEntry *
-MachOObjectFile<is64Bits>::getSymbolTableEntry(DataRefImpl DRI) const {
- const SymbolTableEntryBase *Base = getSymbolTableEntryBase(DRI);
- return reinterpret_cast<const SymbolTableEntry*>(Base);
-}
+ uint32_t segmentIndex() const;
+ uint64_t segmentOffset() const;
+ StringRef typeName() const;
+ StringRef symbolName() const;
+ uint32_t flags() const;
+ int64_t addend() const;
+ int ordinal() const;
-template<bool is64Bits>
-const typename MachOObjectFile<is64Bits>::RelocationEntry *
-MachOObjectFile<is64Bits>::getRelocation(DataRefImpl Rel) const {
- const Section *Sect = getSection(Sections[Rel.d.b]);
- uint32_t RelOffset = Sect->RelocationTableOffset;
- uint64_t Offset = RelOffset + Rel.d.a * sizeof(RelocationEntry);
- StringRef Data = getData(Offset, sizeof(RelocationEntry));
- return reinterpret_cast<const RelocationEntry*>(Data.data());
-}
+ bool operator==(const MachOBindEntry &) const;
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getSectionAddress(DataRefImpl Sec,
- uint64_t &Res) const {
- const Section *Sect = getSection(Sec);
- Res = Sect->Address;
- return object_error::success;
-}
+ void moveNext();
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getSectionSize(DataRefImpl Sec,
- uint64_t &Res) const {
- const Section *Sect = getSection(Sec);
- Res = Sect->Size;
- return object_error::success;
-}
+private:
+ friend class MachOObjectFile;
+ void moveToFirst();
+ void moveToEnd();
+ uint64_t readULEB128();
+ int64_t readSLEB128();
+
+ ArrayRef<uint8_t> Opcodes;
+ const uint8_t *Ptr;
+ uint64_t SegmentOffset;
+ uint32_t SegmentIndex;
+ StringRef SymbolName;
+ int Ordinal;
+ uint32_t Flags;
+ int64_t Addend;
+ uint64_t RemainingLoopCount;
+ uint64_t AdvanceAmount;
+ uint8_t BindType;
+ uint8_t PointerSize;
+ Kind TableKind;
+ bool Malformed;
+ bool Done;
+};
+typedef content_iterator<MachOBindEntry> bind_iterator;
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getSectionContents(DataRefImpl Sec,
- StringRef &Res) const {
- const Section *Sect = getSection(Sec);
- Res = getData(Sect->Offset, Sect->Size);
- return object_error::success;
-}
+class MachOObjectFile : public ObjectFile {
+public:
+ struct LoadCommandInfo {
+ const char *Ptr; // Where in memory the load command is.
+ MachO::load_command C; // The command itself.
+ };
+ typedef SmallVector<LoadCommandInfo, 4> LoadCommandList;
+ typedef LoadCommandList::const_iterator load_command_iterator;
+
+ MachOObjectFile(MemoryBufferRef Object, bool IsLittleEndian, bool Is64Bits,
+ std::error_code &EC);
+
+ void moveSymbolNext(DataRefImpl &Symb) const override;
+
+ uint64_t getNValue(DataRefImpl Sym) const;
+ std::error_code getSymbolName(DataRefImpl Symb,
+ StringRef &Res) const override;
+
+ // MachO specific.
+ std::error_code getIndirectName(DataRefImpl Symb, StringRef &Res) const;
+ unsigned getSectionType(SectionRef Sec) const;
+
+ std::error_code getSymbolAddress(DataRefImpl Symb,
+ uint64_t &Res) const override;
+ uint64_t getSymbolValue(DataRefImpl Symb) const override;
+ uint32_t getSymbolAlignment(DataRefImpl Symb) const override;
+ uint64_t getCommonSymbolSizeImpl(DataRefImpl Symb) const override;
+ std::error_code getSymbolType(DataRefImpl Symb,
+ SymbolRef::Type &Res) const override;
+ uint32_t getSymbolFlags(DataRefImpl Symb) const override;
+ std::error_code getSymbolSection(DataRefImpl Symb,
+ section_iterator &Res) const override;
+
+ void moveSectionNext(DataRefImpl &Sec) const override;
+ std::error_code getSectionName(DataRefImpl Sec,
+ StringRef &Res) const override;
+ uint64_t getSectionAddress(DataRefImpl Sec) const override;
+ uint64_t getSectionSize(DataRefImpl Sec) const override;
+ std::error_code getSectionContents(DataRefImpl Sec,
+ StringRef &Res) const override;
+ uint64_t getSectionAlignment(DataRefImpl Sec) const override;
+ bool isSectionText(DataRefImpl Sec) const override;
+ bool isSectionData(DataRefImpl Sec) const override;
+ bool isSectionBSS(DataRefImpl Sec) const override;
+ bool isSectionVirtual(DataRefImpl Sec) const override;
+ bool sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb) const override;
+ relocation_iterator section_rel_begin(DataRefImpl Sec) const override;
+ relocation_iterator section_rel_end(DataRefImpl Sec) const override;
+
+ void moveRelocationNext(DataRefImpl &Rel) const override;
+ std::error_code getRelocationAddress(DataRefImpl Rel,
+ uint64_t &Res) const override;
+ std::error_code getRelocationOffset(DataRefImpl Rel,
+ uint64_t &Res) const override;
+ symbol_iterator getRelocationSymbol(DataRefImpl Rel) const override;
+ section_iterator getRelocationSection(DataRefImpl Rel) const;
+ std::error_code getRelocationType(DataRefImpl Rel,
+ uint64_t &Res) const override;
+ std::error_code
+ getRelocationTypeName(DataRefImpl Rel,
+ SmallVectorImpl<char> &Result) const override;
+ std::error_code getRelocationHidden(DataRefImpl Rel,
+ bool &Result) const override;
+ uint8_t getRelocationLength(DataRefImpl Rel) const;
+
+ // MachO specific.
+ std::error_code getLibraryShortNameByIndex(unsigned Index, StringRef &) const;
+
+ // TODO: Would be useful to have an iterator based version
+ // of the load command interface too.
+
+ basic_symbol_iterator symbol_begin_impl() const override;
+ basic_symbol_iterator symbol_end_impl() const override;
+
+ // MachO specific.
+ basic_symbol_iterator getSymbolByIndex(unsigned Index) const;
+
+ section_iterator section_begin() const override;
+ section_iterator section_end() const override;
+
+ uint8_t getBytesInAddress() const override;
+
+ StringRef getFileFormatName() const override;
+ unsigned getArch() const override;
+ Triple getArch(const char **McpuDefault, Triple *ThumbTriple) const;
+
+ relocation_iterator section_rel_begin(unsigned Index) const;
+ relocation_iterator section_rel_end(unsigned Index) const;
+
+ dice_iterator begin_dices() const;
+ dice_iterator end_dices() const;
+
+ load_command_iterator begin_load_commands() const;
+ load_command_iterator end_load_commands() const;
+ iterator_range<load_command_iterator> load_commands() const;
+
+ /// For use iterating over all exported symbols.
+ iterator_range<export_iterator> exports() const;
+
+ /// For use examining a trie not in a MachOObjectFile.
+ static iterator_range<export_iterator> exports(ArrayRef<uint8_t> Trie);
+
+ /// For use iterating over all rebase table entries.
+ iterator_range<rebase_iterator> rebaseTable() const;
+
+ /// For use examining rebase opcodes not in a MachOObjectFile.
+ static iterator_range<rebase_iterator> rebaseTable(ArrayRef<uint8_t> Opcodes,
+ bool is64);
+
+ /// For use iterating over all bind table entries.
+ iterator_range<bind_iterator> bindTable() const;
+
+ /// For use iterating over all lazy bind table entries.
+ iterator_range<bind_iterator> lazyBindTable() const;
+
+ /// For use iterating over all lazy bind table entries.
+ iterator_range<bind_iterator> weakBindTable() const;
+
+ /// For use examining bind opcodes not in a MachOObjectFile.
+ static iterator_range<bind_iterator> bindTable(ArrayRef<uint8_t> Opcodes,
+ bool is64,
+ MachOBindEntry::Kind);
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getSectionAlignment(DataRefImpl Sec,
- uint64_t &Res) const {
- const Section *Sect = getSection(Sec);
- Res = uint64_t(1) << Sect->Align;
- return object_error::success;
-}
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::isSectionText(DataRefImpl Sec, bool &Res) const {
- const Section *Sect = getSection(Sec);
- Res = Sect->Flags & macho::SF_PureInstructions;
- return object_error::success;
-}
+ // In a MachO file, sections have a segment name. This is used in the .o
+ // files. They have a single segment, but this field specifies which segment
+ // a section should be put in in the final object.
+ StringRef getSectionFinalSegmentName(DataRefImpl Sec) const;
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::isSectionZeroInit(DataRefImpl Sec, bool &Res) const {
- const Section *Sect = getSection(Sec);
- unsigned SectionType = Sect->Flags & MachO::SectionFlagMaskSectionType;
- Res = SectionType == MachO::SectionTypeZeroFill ||
- SectionType == MachO::SectionTypeZeroFillLarge;
- return object_error::success;
-}
+ // Names are stored as 16 bytes. These returns the raw 16 bytes without
+ // interpreting them as a C string.
+ ArrayRef<char> getSectionRawName(DataRefImpl Sec) const;
+ ArrayRef<char> getSectionRawFinalSegmentName(DataRefImpl Sec) const;
+
+ // MachO specific Info about relocations.
+ bool isRelocationScattered(const MachO::any_relocation_info &RE) const;
+ unsigned getPlainRelocationSymbolNum(
+ const MachO::any_relocation_info &RE) const;
+ bool getPlainRelocationExternal(const MachO::any_relocation_info &RE) const;
+ bool getScatteredRelocationScattered(
+ const MachO::any_relocation_info &RE) const;
+ uint32_t getScatteredRelocationValue(
+ const MachO::any_relocation_info &RE) const;
+ uint32_t getScatteredRelocationType(
+ const MachO::any_relocation_info &RE) const;
+ unsigned getAnyRelocationAddress(const MachO::any_relocation_info &RE) const;
+ unsigned getAnyRelocationPCRel(const MachO::any_relocation_info &RE) const;
+ unsigned getAnyRelocationLength(const MachO::any_relocation_info &RE) const;
+ unsigned getAnyRelocationType(const MachO::any_relocation_info &RE) const;
+ SectionRef getAnyRelocationSection(const MachO::any_relocation_info &RE) const;
+
+ // MachO specific structures.
+ MachO::section getSection(DataRefImpl DRI) const;
+ MachO::section_64 getSection64(DataRefImpl DRI) const;
+ MachO::section getSection(const LoadCommandInfo &L, unsigned Index) const;
+ MachO::section_64 getSection64(const LoadCommandInfo &L,unsigned Index) const;
+ MachO::nlist getSymbolTableEntry(DataRefImpl DRI) const;
+ MachO::nlist_64 getSymbol64TableEntry(DataRefImpl DRI) const;
+
+ MachO::linkedit_data_command
+ getLinkeditDataLoadCommand(const LoadCommandInfo &L) const;
+ MachO::segment_command
+ getSegmentLoadCommand(const LoadCommandInfo &L) const;
+ MachO::segment_command_64
+ getSegment64LoadCommand(const LoadCommandInfo &L) const;
+ MachO::linker_option_command
+ getLinkerOptionLoadCommand(const LoadCommandInfo &L) const;
+ MachO::version_min_command
+ getVersionMinLoadCommand(const LoadCommandInfo &L) const;
+ MachO::dylib_command
+ getDylibIDLoadCommand(const LoadCommandInfo &L) const;
+ MachO::dyld_info_command
+ getDyldInfoLoadCommand(const LoadCommandInfo &L) const;
+ MachO::dylinker_command
+ getDylinkerCommand(const LoadCommandInfo &L) const;
+ MachO::uuid_command
+ getUuidCommand(const LoadCommandInfo &L) const;
+ MachO::rpath_command
+ getRpathCommand(const LoadCommandInfo &L) const;
+ MachO::source_version_command
+ getSourceVersionCommand(const LoadCommandInfo &L) const;
+ MachO::entry_point_command
+ getEntryPointCommand(const LoadCommandInfo &L) const;
+ MachO::encryption_info_command
+ getEncryptionInfoCommand(const LoadCommandInfo &L) const;
+ MachO::encryption_info_command_64
+ getEncryptionInfoCommand64(const LoadCommandInfo &L) const;
+ MachO::sub_framework_command
+ getSubFrameworkCommand(const LoadCommandInfo &L) const;
+ MachO::sub_umbrella_command
+ getSubUmbrellaCommand(const LoadCommandInfo &L) const;
+ MachO::sub_library_command
+ getSubLibraryCommand(const LoadCommandInfo &L) const;
+ MachO::sub_client_command
+ getSubClientCommand(const LoadCommandInfo &L) const;
+ MachO::routines_command
+ getRoutinesCommand(const LoadCommandInfo &L) const;
+ MachO::routines_command_64
+ getRoutinesCommand64(const LoadCommandInfo &L) const;
+ MachO::thread_command
+ getThreadCommand(const LoadCommandInfo &L) const;
+
+ MachO::any_relocation_info getRelocation(DataRefImpl Rel) const;
+ MachO::data_in_code_entry getDice(DataRefImpl Rel) const;
+ const MachO::mach_header &getHeader() const;
+ const MachO::mach_header_64 &getHeader64() const;
+ uint32_t
+ getIndirectSymbolTableEntry(const MachO::dysymtab_command &DLC,
+ unsigned Index) const;
+ MachO::data_in_code_entry getDataInCodeTableEntry(uint32_t DataOffset,
+ unsigned Index) const;
+ MachO::symtab_command getSymtabLoadCommand() const;
+ MachO::dysymtab_command getDysymtabLoadCommand() const;
+ MachO::linkedit_data_command getDataInCodeLoadCommand() const;
+ MachO::linkedit_data_command getLinkOptHintsLoadCommand() const;
+ ArrayRef<uint8_t> getDyldInfoRebaseOpcodes() const;
+ ArrayRef<uint8_t> getDyldInfoBindOpcodes() const;
+ ArrayRef<uint8_t> getDyldInfoWeakBindOpcodes() const;
+ ArrayRef<uint8_t> getDyldInfoLazyBindOpcodes() const;
+ ArrayRef<uint8_t> getDyldInfoExportsTrie() const;
+ ArrayRef<uint8_t> getUuid() const;
+
+ StringRef getStringTableData() const;
+ bool is64Bit() const;
+ void ReadULEB128s(uint64_t Index, SmallVectorImpl<uint64_t> &Out) const;
-template<bool is64Bits>
-relocation_iterator
-MachOObjectFile<is64Bits>::getSectionRelEnd(DataRefImpl Sec) const {
- const Section *Sect = getSection(Sec);
- uint32_t LastReloc = Sect->NumRelocationTableEntries;
- DataRefImpl Ret;
- Ret.d.a = LastReloc;
- Ret.d.b = getSectionIndex(Sec);
- return relocation_iterator(RelocationRef(Ret, this));
-}
+ static StringRef guessLibraryShortName(StringRef Name, bool &isFramework,
+ StringRef &Suffix);
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getRelocationAddress(DataRefImpl Rel,
- uint64_t &Res) const {
- const Section *Sect = getSection(Sections[Rel.d.b]);
- uint64_t SectAddress = Sect->Address;
- const RelocationEntry *RE = getRelocation(Rel);
- unsigned Arch = getArch();
- bool isScattered = (Arch != Triple::x86_64) &&
- (RE->Word0 & macho::RF_Scattered);
-
- uint64_t RelAddr;
- if (isScattered)
- RelAddr = RE->Word0 & 0xFFFFFF;
- else
- RelAddr = RE->Word0;
-
- Res = SectAddress + RelAddr;
- return object_error::success;
-}
+ static Triple::ArchType getArch(uint32_t CPUType);
+ static Triple getArch(uint32_t CPUType, uint32_t CPUSubType,
+ const char **McpuDefault = nullptr);
+ static Triple getThumbArch(uint32_t CPUType, uint32_t CPUSubType,
+ const char **McpuDefault = nullptr);
+ static Triple getArch(uint32_t CPUType, uint32_t CPUSubType,
+ const char **McpuDefault, Triple *ThumbTriple);
+ static bool isValidArch(StringRef ArchFlag);
+ static Triple getHostArch();
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getRelocationOffset(DataRefImpl Rel,
- uint64_t &Res) const {
- const RelocationEntry *RE = getRelocation(Rel);
-
- unsigned Arch = getArch();
- bool isScattered = (Arch != Triple::x86_64) &&
- (RE->Word0 & macho::RF_Scattered);
- if (isScattered)
- Res = RE->Word0 & 0xFFFFFF;
- else
- Res = RE->Word0;
- return object_error::success;
-}
+ bool isRelocatableObject() const override;
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getRelocationSymbol(DataRefImpl Rel,
- SymbolRef &Res) const {
- const RelocationEntry *RE = getRelocation(Rel);
- uint32_t SymbolIdx = RE->Word1 & 0xffffff;
- bool isExtern = (RE->Word1 >> 27) & 1;
-
- DataRefImpl Sym;
- moveToNextSymbol(Sym);
- if (isExtern) {
- for (unsigned i = 0; i < SymbolIdx; i++) {
- Sym.d.b++;
- moveToNextSymbol(Sym);
- assert(Sym.d.a < getHeader()->NumLoadCommands &&
- "Relocation symbol index out of range!");
- }
- }
- Res = SymbolRef(Sym, this);
- return object_error::success;
-}
+ bool hasPageZeroSegment() const { return HasPageZeroSegment; }
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getRelocationAdditionalInfo(DataRefImpl Rel,
- int64_t &Res) const {
- const RelocationEntry *RE = getRelocation(Rel);
- bool isExtern = (RE->Word1 >> 27) & 1;
- Res = 0;
- if (!isExtern) {
- const uint8_t* sectAddress = base();
- const Section *Sect = getSection(Sections[Rel.d.b]);
- sectAddress += Sect->Offset;
- Res = reinterpret_cast<uintptr_t>(sectAddress);
+ static bool classof(const Binary *v) {
+ return v->isMachO();
}
- return object_error::success;
-}
-template<bool is64Bits>
-error_code MachOObjectFile<is64Bits>::getRelocationType(DataRefImpl Rel,
- uint64_t &Res) const {
- const RelocationEntry *RE = getRelocation(Rel);
- Res = RE->Word0;
- Res <<= 32;
- Res |= RE->Word1;
- return object_error::success;
-}
+private:
+ union {
+ MachO::mach_header_64 Header64;
+ MachO::mach_header Header;
+ };
+ typedef SmallVector<const char*, 1> SectionList;
+ SectionList Sections;
+ typedef SmallVector<const char*, 1> LibraryList;
+ LibraryList Libraries;
+ LoadCommandList LoadCommands;
+ typedef SmallVector<StringRef, 1> LibraryShortName;
+ mutable LibraryShortName LibrariesShortNames;
+ const char *SymtabLoadCmd;
+ const char *DysymtabLoadCmd;
+ const char *DataInCodeLoadCmd;
+ const char *LinkOptHintsLoadCmd;
+ const char *DyldInfoLoadCmd;
+ const char *UuidLoadCmd;
+ bool HasPageZeroSegment;
+};
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getRelocationTypeName(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const {
- // TODO: Support scattered relocations.
- StringRef res;
- const RelocationEntry *RE = getRelocation(Rel);
-
- unsigned Arch = getArch();
- bool isScattered = (Arch != Triple::x86_64) &&
- (RE->Word0 & macho::RF_Scattered);
-
- unsigned r_type;
- if (isScattered)
- r_type = (RE->Word0 >> 24) & 0xF;
- else
- r_type = (RE->Word1 >> 28) & 0xF;
-
- switch (Arch) {
- case Triple::x86: {
- static const char *const Table[] = {
- "GENERIC_RELOC_VANILLA",
- "GENERIC_RELOC_PAIR",
- "GENERIC_RELOC_SECTDIFF",
- "GENERIC_RELOC_PB_LA_PTR",
- "GENERIC_RELOC_LOCAL_SECTDIFF",
- "GENERIC_RELOC_TLV" };
-
- if (r_type > 6)
- res = "Unknown";
- else
- res = Table[r_type];
- break;
- }
- case Triple::x86_64: {
- static const char *const Table[] = {
- "X86_64_RELOC_UNSIGNED",
- "X86_64_RELOC_SIGNED",
- "X86_64_RELOC_BRANCH",
- "X86_64_RELOC_GOT_LOAD",
- "X86_64_RELOC_GOT",
- "X86_64_RELOC_SUBTRACTOR",
- "X86_64_RELOC_SIGNED_1",
- "X86_64_RELOC_SIGNED_2",
- "X86_64_RELOC_SIGNED_4",
- "X86_64_RELOC_TLV" };
-
- if (r_type > 9)
- res = "Unknown";
- else
- res = Table[r_type];
- break;
- }
- case Triple::arm: {
- static const char *const Table[] = {
- "ARM_RELOC_VANILLA",
- "ARM_RELOC_PAIR",
- "ARM_RELOC_SECTDIFF",
- "ARM_RELOC_LOCAL_SECTDIFF",
- "ARM_RELOC_PB_LA_PTR",
- "ARM_RELOC_BR24",
- "ARM_THUMB_RELOC_BR22",
- "ARM_THUMB_32BIT_BRANCH",
- "ARM_RELOC_HALF",
- "ARM_RELOC_HALF_SECTDIFF" };
-
- if (r_type > 9)
- res = "Unknown";
- else
- res = Table[r_type];
- break;
- }
- case Triple::ppc: {
- static const char *const Table[] = {
- "PPC_RELOC_VANILLA",
- "PPC_RELOC_PAIR",
- "PPC_RELOC_BR14",
- "PPC_RELOC_BR24",
- "PPC_RELOC_HI16",
- "PPC_RELOC_LO16",
- "PPC_RELOC_HA16",
- "PPC_RELOC_LO14",
- "PPC_RELOC_SECTDIFF",
- "PPC_RELOC_PB_LA_PTR",
- "PPC_RELOC_HI16_SECTDIFF",
- "PPC_RELOC_LO16_SECTDIFF",
- "PPC_RELOC_HA16_SECTDIFF",
- "PPC_RELOC_JBSR",
- "PPC_RELOC_LO14_SECTDIFF",
- "PPC_RELOC_LOCAL_SECTDIFF" };
-
- res = Table[r_type];
- break;
- }
- case Triple::UnknownArch:
- res = "Unknown";
- break;
- }
- Result.append(res.begin(), res.end());
- return object_error::success;
-}
+/// DiceRef
+inline DiceRef::DiceRef(DataRefImpl DiceP, const ObjectFile *Owner)
+ : DicePimpl(DiceP) , OwningObject(Owner) {}
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getRelocationValueString(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const {
- const RelocationEntry *RE = getRelocation(Rel);
-
- unsigned Arch = getArch();
- bool isScattered = (Arch != Triple::x86_64) &&
- (RE->Word0 & macho::RF_Scattered);
-
- std::string fmtbuf;
- raw_string_ostream fmt(fmtbuf);
-
- unsigned Type;
- if (isScattered)
- Type = (RE->Word0 >> 24) & 0xF;
- else
- Type = (RE->Word1 >> 28) & 0xF;
-
- bool isPCRel;
- if (isScattered)
- isPCRel = ((RE->Word0 >> 30) & 1);
- else
- isPCRel = ((RE->Word1 >> 24) & 1);
-
- // Determine any addends that should be displayed with the relocation.
- // These require decoding the relocation type, which is triple-specific.
-
- // X86_64 has entirely custom relocation types.
- if (Arch == Triple::x86_64) {
- bool isPCRel = ((RE->Word1 >> 24) & 1);
-
- switch (Type) {
- case macho::RIT_X86_64_GOTLoad: // X86_64_RELOC_GOT_LOAD
- case macho::RIT_X86_64_GOT: { // X86_64_RELOC_GOT
- printRelocationTargetName(RE, fmt);
- fmt << "@GOT";
- if (isPCRel) fmt << "PCREL";
- break;
- }
- case macho::RIT_X86_64_Subtractor: { // X86_64_RELOC_SUBTRACTOR
- DataRefImpl RelNext = Rel;
- RelNext.d.a++;
- const RelocationEntry *RENext = getRelocation(RelNext);
-
- // X86_64_SUBTRACTOR must be followed by a relocation of type
- // X86_64_RELOC_UNSIGNED.
- // NOTE: Scattered relocations don't exist on x86_64.
- unsigned RType = (RENext->Word1 >> 28) & 0xF;
- if (RType != 0)
- report_fatal_error("Expected X86_64_RELOC_UNSIGNED after "
- "X86_64_RELOC_SUBTRACTOR.");
-
- // The X86_64_RELOC_UNSIGNED contains the minuend symbol,
- // X86_64_SUBTRACTOR contains to the subtrahend.
- printRelocationTargetName(RENext, fmt);
- fmt << "-";
- printRelocationTargetName(RE, fmt);
- break;
- }
- case macho::RIT_X86_64_TLV:
- printRelocationTargetName(RE, fmt);
- fmt << "@TLV";
- if (isPCRel) fmt << "P";
- break;
- case macho::RIT_X86_64_Signed1: // X86_64_RELOC_SIGNED1
- printRelocationTargetName(RE, fmt);
- fmt << "-1";
- break;
- case macho::RIT_X86_64_Signed2: // X86_64_RELOC_SIGNED2
- printRelocationTargetName(RE, fmt);
- fmt << "-2";
- break;
- case macho::RIT_X86_64_Signed4: // X86_64_RELOC_SIGNED4
- printRelocationTargetName(RE, fmt);
- fmt << "-4";
- break;
- default:
- printRelocationTargetName(RE, fmt);
- break;
- }
- // X86 and ARM share some relocation types in common.
- } else if (Arch == Triple::x86 || Arch == Triple::arm) {
- // Generic relocation types...
- switch (Type) {
- case macho::RIT_Pair: // GENERIC_RELOC_PAIR - prints no info
- return object_error::success;
- case macho::RIT_Difference: { // GENERIC_RELOC_SECTDIFF
- DataRefImpl RelNext = Rel;
- RelNext.d.a++;
- const RelocationEntry *RENext = getRelocation(RelNext);
-
- // X86 sect diff's must be followed by a relocation of type
- // GENERIC_RELOC_PAIR.
- bool isNextScattered = (Arch != Triple::x86_64) &&
- (RENext->Word0 & macho::RF_Scattered);
- unsigned RType;
- if (isNextScattered)
- RType = (RENext->Word0 >> 24) & 0xF;
- else
- RType = (RENext->Word1 >> 28) & 0xF;
- if (RType != 1)
- report_fatal_error("Expected GENERIC_RELOC_PAIR after "
- "GENERIC_RELOC_SECTDIFF.");
-
- printRelocationTargetName(RE, fmt);
- fmt << "-";
- printRelocationTargetName(RENext, fmt);
- break;
- }
- }
-
- if (Arch == Triple::x86) {
- // All X86 relocations that need special printing were already
- // handled in the generic code.
- switch (Type) {
- case macho::RIT_Generic_LocalDifference:{// GENERIC_RELOC_LOCAL_SECTDIFF
- DataRefImpl RelNext = Rel;
- RelNext.d.a++;
- const RelocationEntry *RENext = getRelocation(RelNext);
-
- // X86 sect diff's must be followed by a relocation of type
- // GENERIC_RELOC_PAIR.
- bool isNextScattered = (Arch != Triple::x86_64) &&
- (RENext->Word0 & macho::RF_Scattered);
- unsigned RType;
- if (isNextScattered)
- RType = (RENext->Word0 >> 24) & 0xF;
- else
- RType = (RENext->Word1 >> 28) & 0xF;
- if (RType != 1)
- report_fatal_error("Expected GENERIC_RELOC_PAIR after "
- "GENERIC_RELOC_LOCAL_SECTDIFF.");
-
- printRelocationTargetName(RE, fmt);
- fmt << "-";
- printRelocationTargetName(RENext, fmt);
- break;
- }
- case macho::RIT_Generic_TLV: {
- printRelocationTargetName(RE, fmt);
- fmt << "@TLV";
- if (isPCRel) fmt << "P";
- break;
- }
- default:
- printRelocationTargetName(RE, fmt);
- }
- } else { // ARM-specific relocations
- switch (Type) {
- case macho::RIT_ARM_Half: // ARM_RELOC_HALF
- case macho::RIT_ARM_HalfDifference: { // ARM_RELOC_HALF_SECTDIFF
- // Half relocations steal a bit from the length field to encode
- // whether this is an upper16 or a lower16 relocation.
- bool isUpper;
- if (isScattered)
- isUpper = (RE->Word0 >> 28) & 1;
- else
- isUpper = (RE->Word1 >> 25) & 1;
-
- if (isUpper)
- fmt << ":upper16:(";
- else
- fmt << ":lower16:(";
- printRelocationTargetName(RE, fmt);
-
- DataRefImpl RelNext = Rel;
- RelNext.d.a++;
- const RelocationEntry *RENext = getRelocation(RelNext);
-
- // ARM half relocs must be followed by a relocation of type
- // ARM_RELOC_PAIR.
- bool isNextScattered = (Arch != Triple::x86_64) &&
- (RENext->Word0 & macho::RF_Scattered);
- unsigned RType;
- if (isNextScattered)
- RType = (RENext->Word0 >> 24) & 0xF;
- else
- RType = (RENext->Word1 >> 28) & 0xF;
-
- if (RType != 1)
- report_fatal_error("Expected ARM_RELOC_PAIR after "
- "GENERIC_RELOC_HALF");
-
- // NOTE: The half of the target virtual address is stashed in the
- // address field of the secondary relocation, but we can't reverse
- // engineer the constant offset from it without decoding the movw/movt
- // instruction to find the other half in its immediate field.
-
- // ARM_RELOC_HALF_SECTDIFF encodes the second section in the
- // symbol/section pointer of the follow-on relocation.
- if (Type == macho::RIT_ARM_HalfDifference) {
- fmt << "-";
- printRelocationTargetName(RENext, fmt);
- }
-
- fmt << ")";
- break;
- }
- default: {
- printRelocationTargetName(RE, fmt);
- }
- }
- }
- } else
- printRelocationTargetName(RE, fmt);
-
- fmt.flush();
- Result.append(fmtbuf.begin(), fmtbuf.end());
- return object_error::success;
+inline bool DiceRef::operator==(const DiceRef &Other) const {
+ return DicePimpl == Other.DicePimpl;
}
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getRelocationHidden(DataRefImpl Rel,
- bool &Result) const {
- const RelocationEntry *RE = getRelocation(Rel);
-
- unsigned Arch = getArch();
- bool isScattered = (Arch != Triple::x86_64) &&
- (RE->Word0 & macho::RF_Scattered);
- unsigned Type;
- if (isScattered)
- Type = (RE->Word0 >> 24) & 0xF;
- else
- Type = (RE->Word1 >> 28) & 0xF;
-
- Result = false;
-
- // On arches that use the generic relocations, GENERIC_RELOC_PAIR
- // is always hidden.
- if (Arch == Triple::x86 || Arch == Triple::arm) {
- if (Type == macho::RIT_Pair) Result = true;
- } else if (Arch == Triple::x86_64) {
- // On x86_64, X86_64_RELOC_UNSIGNED is hidden only when it follows
- // an X864_64_RELOC_SUBTRACTOR.
- if (Type == macho::RIT_X86_64_Unsigned && Rel.d.a > 0) {
- DataRefImpl RelPrev = Rel;
- RelPrev.d.a--;
- const RelocationEntry *REPrev = getRelocation(RelPrev);
-
- unsigned PrevType = (REPrev->Word1 >> 28) & 0xF;
-
- if (PrevType == macho::RIT_X86_64_Subtractor) Result = true;
- }
- }
-
- return object_error::success;
+inline bool DiceRef::operator<(const DiceRef &Other) const {
+ return DicePimpl < Other.DicePimpl;
}
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::getSymbolFileOffset(DataRefImpl Symb,
- uint64_t &Res) const {
- const SymbolTableEntry *Entry = getSymbolTableEntry(Symb);
- Res = Entry->Value;
- if (Entry->SectionIndex) {
- const Section *Sec = getSection(Sections[Entry->SectionIndex-1]);
- Res += Sec->Offset - Sec->Address;
- }
-
- return object_error::success;
+inline void DiceRef::moveNext() {
+ const MachO::data_in_code_entry *P =
+ reinterpret_cast<const MachO::data_in_code_entry *>(DicePimpl.p);
+ DicePimpl.p = reinterpret_cast<uintptr_t>(P + 1);
}
-template<bool is64Bits>
-error_code
-MachOObjectFile<is64Bits>::sectionContainsSymbol(DataRefImpl Sec,
- DataRefImpl Symb,
- bool &Result) const {
- SymbolRef::Type ST;
- getSymbolType(Symb, ST);
- if (ST == SymbolRef::ST_Unknown) {
- Result = false;
- return object_error::success;
- }
-
- uint64_t SectBegin, SectEnd;
- getSectionAddress(Sec, SectBegin);
- getSectionSize(Sec, SectEnd);
- SectEnd += SectBegin;
-
- const SymbolTableEntry *Entry = getSymbolTableEntry(Symb);
- uint64_t SymAddr= Entry->Value;
- Result = (SymAddr >= SectBegin) && (SymAddr < SectEnd);
+// Since a Mach-O data in code reference, a DiceRef, can only be created when
+// the OwningObject ObjectFile is a MachOObjectFile a static_cast<> is used for
+// the methods that get the values of the fields of the reference.
- return object_error::success;
+inline std::error_code DiceRef::getOffset(uint32_t &Result) const {
+ const MachOObjectFile *MachOOF =
+ static_cast<const MachOObjectFile *>(OwningObject);
+ MachO::data_in_code_entry Dice = MachOOF->getDice(DicePimpl);
+ Result = Dice.offset;
+ return std::error_code();
}
-template<bool is64Bits>
-error_code MachOObjectFile<is64Bits>::getSymbolAddress(DataRefImpl Symb,
- uint64_t &Res) const {
- const SymbolTableEntry *Entry = getSymbolTableEntry(Symb);
- Res = Entry->Value;
- return object_error::success;
+inline std::error_code DiceRef::getLength(uint16_t &Result) const {
+ const MachOObjectFile *MachOOF =
+ static_cast<const MachOObjectFile *>(OwningObject);
+ MachO::data_in_code_entry Dice = MachOOF->getDice(DicePimpl);
+ Result = Dice.length;
+ return std::error_code();
}
-template<bool is64Bits>
-error_code MachOObjectFile<is64Bits>::getSymbolSize(DataRefImpl DRI,
- uint64_t &Result) const {
- uint32_t LoadCommandCount = getHeader()->NumLoadCommands;
- uint64_t BeginOffset;
- uint64_t EndOffset = 0;
- uint8_t SectionIndex;
-
- const SymbolTableEntry *Entry = getSymbolTableEntry(DRI);
- BeginOffset = Entry->Value;
- SectionIndex = Entry->SectionIndex;
- if (!SectionIndex) {
- uint32_t flags = SymbolRef::SF_None;
- getSymbolFlags(DRI, flags);
- if (flags & SymbolRef::SF_Common)
- Result = Entry->Value;
- else
- Result = UnknownAddressOrSize;
- return object_error::success;
- }
- // Unfortunately symbols are unsorted so we need to touch all
- // symbols from load command
- DRI.d.b = 0;
- uint32_t Command = DRI.d.a;
- while (Command == DRI.d.a) {
- moveToNextSymbol(DRI);
- if (DRI.d.a < LoadCommandCount) {
- Entry = getSymbolTableEntry(DRI);
- if (Entry->SectionIndex == SectionIndex && Entry->Value > BeginOffset)
- if (!EndOffset || Entry->Value < EndOffset)
- EndOffset = Entry->Value;
- }
- DRI.d.b++;
- }
- if (!EndOffset) {
- uint64_t Size;
- getSectionSize(Sections[SectionIndex-1], Size);
- getSectionAddress(Sections[SectionIndex-1], EndOffset);
- EndOffset += Size;
- }
- Result = EndOffset - BeginOffset;
- return object_error::success;
+inline std::error_code DiceRef::getKind(uint16_t &Result) const {
+ const MachOObjectFile *MachOOF =
+ static_cast<const MachOObjectFile *>(OwningObject);
+ MachO::data_in_code_entry Dice = MachOOF->getDice(DicePimpl);
+ Result = Dice.kind;
+ return std::error_code();
}
-template<bool is64Bits>
-error_code MachOObjectFile<is64Bits>::getSectionNext(DataRefImpl Sec,
- SectionRef &Res) const {
- Sec.d.b++;
- moveToNextSection(Sec);
- Res = SectionRef(Sec, this);
- return object_error::success;
+inline DataRefImpl DiceRef::getRawDataRefImpl() const {
+ return DicePimpl;
}
-template<bool is64Bits>
-section_iterator MachOObjectFile<is64Bits>::begin_sections() const {
- DataRefImpl DRI;
- moveToNextSection(DRI);
- return section_iterator(SectionRef(DRI, this));
-}
-
-template<bool is64Bits>
-void MachOObjectFile<is64Bits>::moveToNextSection(DataRefImpl &DRI) const {
- uint32_t LoadCommandCount = getHeader()->NumLoadCommands;
- while (DRI.d.a < LoadCommandCount) {
- const LoadCommand *Command = getLoadCommandInfo(DRI.d.a);
- if (Command->Type == SegmentLoadType) {
- const SegmentLoadCommand *SegmentLoadCmd =
- reinterpret_cast<const SegmentLoadCommand*>(Command);
- if (DRI.d.b < SegmentLoadCmd->NumSections)
- return;
- }
-
- DRI.d.a++;
- DRI.d.b = 0;
- }
+inline const ObjectFile *DiceRef::getObjectFile() const {
+ return OwningObject;
}
}
projects / oota-llvm.git / blobdiff