//
//===----------------------------------------------------------------------===//
//
-// 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/ADT/Triple.h"
+#include "llvm/Object/MachOFormat.h"
#include "llvm/Object/ObjectFile.h"
-#include "llvm/Object/MachOObject.h"
#include "llvm/Support/MachO.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/ADT/SmallVector.h"
namespace llvm {
namespace object {
-typedef MachOObject::LoadCommandInfo LoadCommandInfo;
+/// 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;
-class MachOObjectFile : public ObjectFile {
public:
- MachOObjectFile(MemoryBuffer *Object, MachOObject *MOO, error_code &ec);
+ DiceRef() : OwningObject(NULL) { }
- virtual symbol_iterator begin_symbols() const;
- virtual symbol_iterator end_symbols() const;
- virtual section_iterator begin_sections() const;
- virtual section_iterator end_sections() const;
+ DiceRef(DataRefImpl DiceP, const ObjectFile *Owner);
- virtual uint8_t getBytesInAddress() const;
- virtual StringRef getFileFormatName() const;
- virtual unsigned getArch() const;
+ bool operator==(const DiceRef &Other) const;
+ bool operator<(const DiceRef &Other) const;
- MachOObject *getObject() { return MachOObj; }
+ error_code getNext(DiceRef &Result) const;
- static inline bool classof(const Binary *v) {
- return v->getType() == isMachO;
- }
- static inline bool classof(const MachOObjectFile *v) { return true; }
+ error_code getOffset(uint32_t &Result) const;
+ error_code getLength(uint16_t &Result) const;
+ error_code getKind(uint16_t &Result) const;
+
+ DataRefImpl getRawDataRefImpl() const;
+ const ObjectFile *getObjectFile() const;
+};
+typedef content_iterator<DiceRef> dice_iterator;
+
+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);
-protected:
virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
- virtual error_code getSymbolOffset(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 isSymbolInternal(DataRefImpl Symb, bool &Res) const;
- virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const;
- virtual error_code isSymbolWeak(DataRefImpl Symb, bool &Res) const;
- virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
- virtual error_code isSymbolAbsolute(DataRefImpl Symb, bool &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 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 sectionContainsSymbol(DataRefImpl DRI, DataRefImpl S,
+ 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 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 symbol_iterator getRelocationSymbol(DataRefImpl Rel) 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;
+
+ dice_iterator begin_dices() const;
+ dice_iterator end_dices() 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::DataInCodeTableEntry getDice(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;
+ macho::LinkeditDataLoadCommand getDataInCodeLoadCommand() const;
+
+ StringRef getStringTableData() const;
+ bool is64Bit() const;
+ void ReadULEB128s(uint64_t Index, SmallVectorImpl<uint64_t> &Out) const;
+
+ static Triple::ArchType getArch(uint32_t CPUType);
+
+ static bool classof(const Binary *v) {
+ return v->isMachO();
+ }
+
private:
- MachOObject *MachOObj;
- mutable uint32_t RegisteredStringTable;
- typedef SmallVector<DataRefImpl, 1> SectionList;
+ typedef SmallVector<const char*, 1> SectionList;
SectionList Sections;
+ const char *SymtabLoadCmd;
+ const char *DysymtabLoadCmd;
+ const char *DataInCodeLoadCmd;
+};
+/// DiceRef
+inline DiceRef::DiceRef(DataRefImpl DiceP, const ObjectFile *Owner)
+ : DicePimpl(DiceP) , OwningObject(Owner) {}
- 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;
-};
+inline bool DiceRef::operator==(const DiceRef &Other) const {
+ return DicePimpl == Other.DicePimpl;
+}
+
+inline bool DiceRef::operator<(const DiceRef &Other) const {
+ return DicePimpl < Other.DicePimpl;
+}
+
+inline error_code DiceRef::getNext(DiceRef &Result) const {
+ DataRefImpl Rel = DicePimpl;
+ const macho::DataInCodeTableEntry *P =
+ reinterpret_cast<const macho::DataInCodeTableEntry *>(Rel.p);
+ Rel.p = reinterpret_cast<uintptr_t>(P + 1);
+ Result = DiceRef(Rel, OwningObject);
+ return object_error::success;
+}
+
+// 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.
+
+inline error_code DiceRef::getOffset(uint32_t &Result) const {
+ const MachOObjectFile *MachOOF =
+ static_cast<const MachOObjectFile *>(OwningObject);
+ macho::DataInCodeTableEntry Dice = MachOOF->getDice(DicePimpl);
+ Result = Dice.Offset;
+ return object_error::success;
+}
+
+inline error_code DiceRef::getLength(uint16_t &Result) const {
+ const MachOObjectFile *MachOOF =
+ static_cast<const MachOObjectFile *>(OwningObject);
+ macho::DataInCodeTableEntry Dice = MachOOF->getDice(DicePimpl);
+ Result = Dice.Length;
+ return object_error::success;
+}
+
+inline error_code DiceRef::getKind(uint16_t &Result) const {
+ const MachOObjectFile *MachOOF =
+ static_cast<const MachOObjectFile *>(OwningObject);
+ macho::DataInCodeTableEntry Dice = MachOOF->getDice(DicePimpl);
+ Result = Dice.Kind;
+ return object_error::success;
+}
+
+inline DataRefImpl DiceRef::getRawDataRefImpl() const {
+ return DicePimpl;
+}
+
+inline const ObjectFile *DiceRef::getObjectFile() const {
+ return OwningObject;
+}
}
}
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