diff options
Diffstat (limited to 'include/llvm/Object/MachO.h')
| -rw-r--r-- | include/llvm/Object/MachO.h | 171 |
1 files changed, 109 insertions, 62 deletions
diff --git a/include/llvm/Object/MachO.h b/include/llvm/Object/MachO.h index ed7aabd..14cd4d7 100644 --- a/include/llvm/Object/MachO.h +++ b/include/llvm/Object/MachO.h @@ -7,16 +7,17 @@ // //===----------------------------------------------------------------------===// // -// 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. // //===----------------------------------------------------------------------===// #ifndef LLVM_OBJECT_MACHO_H #define LLVM_OBJECT_MACHO_H +#include "llvm/ADT/ArrayRef.h" #include "llvm/ADT/SmallVector.h" -#include "llvm/Object/MachOObject.h" +#include "llvm/Object/MachOFormat.h" #include "llvm/Object/ObjectFile.h" #include "llvm/Support/MachO.h" #include "llvm/Support/raw_ostream.h" @@ -24,46 +25,26 @@ namespace llvm { namespace object { -typedef MachOObject::LoadCommandInfo LoadCommandInfo; - class MachOObjectFile : public ObjectFile { public: - MachOObjectFile(MemoryBuffer *Object, MachOObject *MOO, 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 begin_sections() const; - virtual section_iterator end_sections() const; + struct LoadCommandInfo { + const char *Ptr; // Where in memory the load command is. + macho::LoadCommand C; // The command itself. + }; - virtual uint8_t getBytesInAddress() const; - virtual StringRef getFileFormatName() const; - virtual unsigned getArch() const; - virtual StringRef getLoadName() const; + MachOObjectFile(MemoryBuffer *Object, bool IsLittleEndian, bool Is64Bits, + error_code &ec); - // 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. - error_code getSectionFinalSegmentName(DataRefImpl Sec, StringRef &Res) const; - - MachOObject *getObject() { return MachOObj.get(); } - - static inline bool classof(const Binary *v) { - return v->isMachO(); - } - -protected: virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const; virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const; - virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &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 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; @@ -82,21 +63,17 @@ protected: 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 DRI, DataRefImpl S, + 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 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, @@ -108,28 +85,98 @@ protected: virtual error_code getLibraryNext(DataRefImpl LibData, LibraryRef &Res) const; virtual error_code getLibraryPath(DataRefImpl LibData, StringRef &Res) const; -private: - OwningPtr<MachOObject> MachOObj; - mutable uint32_t RegisteredStringTable; - typedef SmallVector<DataRefImpl, 1> SectionList; - SectionList Sections; + // 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; - void moveToNextSection(DataRefImpl &DRI) const; - void getSymbolTableEntry(DataRefImpl DRI, - InMemoryStruct<macho::SymbolTableEntry> &Res) const; - void getSymbol64TableEntry(DataRefImpl DRI, - InMemoryStruct<macho::Symbol64TableEntry> &Res) const; - void moveToNextSymbol(DataRefImpl &DRI) const; - void getSection(DataRefImpl DRI, InMemoryStruct<macho::Section> &Res) const; - void getSection64(DataRefImpl DRI, - InMemoryStruct<macho::Section64> &Res) const; - void getRelocation(DataRefImpl Rel, - InMemoryStruct<macho::RelocationEntry> &Res) const; - std::size_t getSectionIndex(DataRefImpl Sec) const; - - void printRelocationTargetName(InMemoryStruct<macho::RelocationEntry>& RE, - raw_string_ostream &fmt) 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; }; } |
