| //===- MachO.h - MachO object file implementation ---------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file declares the MachOObjectFile class, which implement the ObjectFile |
| // interface for MachO files. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_OBJECT_MACHO_H |
| #define LLVM_OBJECT_MACHO_H |
| |
| #include "llvm/ADT/ArrayRef.h" |
| #include "llvm/ADT/SmallVector.h" |
| #include "llvm/Object/MachOFormat.h" |
| #include "llvm/Object/ObjectFile.h" |
| #include "llvm/Support/MachO.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| namespace llvm { |
| namespace object { |
| |
| class MachOObjectFile : public ObjectFile { |
| public: |
| struct LoadCommandInfo { |
| const char *Ptr; // Where in memory the load command is. |
| macho::LoadCommand C; // The command itself. |
| }; |
| |
| MachOObjectFile(MemoryBuffer *Object, bool IsLittleEndian, bool Is64Bits, |
| error_code &ec); |
| |
| virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const; |
| virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const; |
| virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const; |
| virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const; |
| virtual error_code getSymbolAlignment(DataRefImpl Symb, uint32_t &Res) const; |
| virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const; |
| virtual error_code getSymbolType(DataRefImpl Symb, |
| SymbolRef::Type &Res) const; |
| virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const; |
| virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &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 getSectionNext(DataRefImpl Sec, SectionRef &Res) const; |
| virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) 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 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 isSectionZeroInit(DataRefImpl Sec, bool &Res) const; |
| virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const; |
| virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb, |
| bool &Result) const; |
| virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const; |
| virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const; |
| |
| virtual error_code getRelocationNext(DataRefImpl Rel, |
| RelocationRef &Res) 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 getRelocationType(DataRefImpl Rel, uint64_t &Res) const; |
| virtual error_code getRelocationTypeName(DataRefImpl Rel, |
| SmallVectorImpl<char> &Result) const; |
| virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel, |
| int64_t &Res) const; |
| virtual error_code getRelocationValueString(DataRefImpl Rel, |
| SmallVectorImpl<char> &Result) const; |
| virtual error_code getRelocationHidden(DataRefImpl Rel, bool &Result) const; |
| |
| virtual error_code getLibraryNext(DataRefImpl LibData, LibraryRef &Res) const; |
| virtual error_code getLibraryPath(DataRefImpl LibData, StringRef &Res) const; |
| |
| // TODO: Would be useful to have an iterator based version |
| // of the load command interface too. |
| |
| 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 section_iterator begin_sections() const; |
| virtual section_iterator end_sections() const; |
| |
| virtual library_iterator begin_libraries_needed() const; |
| virtual library_iterator end_libraries_needed() const; |
| |
| virtual uint8_t getBytesInAddress() const; |
| |
| virtual StringRef getFileFormatName() const; |
| virtual unsigned getArch() const; |
| |
| virtual StringRef getLoadName() const; |
| |
| relocation_iterator getSectionRelBegin(unsigned Index) const; |
| relocation_iterator getSectionRelEnd(unsigned Index) 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; |
| |
| // 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::RelocationEntry &RE) const; |
| unsigned getPlainRelocationSymbolNum(const macho::RelocationEntry &RE) const; |
| bool getPlainRelocationExternal(const macho::RelocationEntry &RE) const; |
| bool getScatteredRelocationScattered(const macho::RelocationEntry &RE) const; |
| uint32_t getScatteredRelocationValue(const macho::RelocationEntry &RE) const; |
| unsigned getAnyRelocationAddress(const macho::RelocationEntry &RE) const; |
| unsigned getAnyRelocationPCRel(const macho::RelocationEntry &RE) const; |
| unsigned getAnyRelocationLength(const macho::RelocationEntry &RE) const; |
| unsigned getAnyRelocationType(const macho::RelocationEntry &RE) const; |
| SectionRef getRelocationSection(const macho::RelocationEntry &RE) const; |
| |
| // Walk load commands. |
| LoadCommandInfo getFirstLoadCommandInfo() const; |
| LoadCommandInfo getNextLoadCommandInfo(const LoadCommandInfo &L) const; |
| |
| // MachO specific structures. |
| macho::Section getSection(DataRefImpl DRI) const; |
| macho::Section64 getSection64(DataRefImpl DRI) const; |
| macho::Section getSection(const LoadCommandInfo &L, unsigned Index) const; |
| macho::Section64 getSection64(const LoadCommandInfo &L, unsigned Index) const; |
| macho::SymbolTableEntry getSymbolTableEntry(DataRefImpl DRI) const; |
| macho::Symbol64TableEntry getSymbol64TableEntry(DataRefImpl DRI) const; |
| |
| macho::LinkeditDataLoadCommand |
| getLinkeditDataLoadCommand(const LoadCommandInfo &L) const; |
| macho::SegmentLoadCommand |
| getSegmentLoadCommand(const LoadCommandInfo &L) const; |
| macho::Segment64LoadCommand |
| getSegment64LoadCommand(const LoadCommandInfo &L) const; |
| macho::LinkerOptionsLoadCommand |
| getLinkerOptionsLoadCommand(const LoadCommandInfo &L) const; |
| |
| macho::RelocationEntry getRelocation(DataRefImpl Rel) const; |
| macho::Header getHeader() const; |
| macho::Header64Ext getHeader64Ext() const; |
| macho::IndirectSymbolTableEntry |
| getIndirectSymbolTableEntry(const macho::DysymtabLoadCommand &DLC, |
| unsigned Index) const; |
| macho::DataInCodeTableEntry getDataInCodeTableEntry(uint32_t DataOffset, |
| unsigned Index) const; |
| macho::SymtabLoadCommand getSymtabLoadCommand() const; |
| macho::DysymtabLoadCommand getDysymtabLoadCommand() const; |
| |
| StringRef getStringTableData() const; |
| bool is64Bit() const; |
| void ReadULEB128s(uint64_t Index, SmallVectorImpl<uint64_t> &Out) const; |
| |
| static bool classof(const Binary *v) { |
| return v->isMachO(); |
| } |
| |
| private: |
| typedef SmallVector<const char*, 1> SectionList; |
| SectionList Sections; |
| const char *SymtabLoadCmd; |
| const char *DysymtabLoadCmd; |
| }; |
| |
| } |
| } |
| |
| #endif |
| |
