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//===- 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 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;
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;
// 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;
// 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::SymbolTableEntry getSymbolTableEntry(DataRefImpl DRI) const;
macho::Symbol64TableEntry getSymbol64TableEntry(DataRefImpl DRI) const;
macho::LinkeditDataLoadCommand
getLinkeditDataLoadCommand(const LoadCommandInfo &L) const;
macho::RelocationEntry getRelocation(DataRefImpl Rel) const;
macho::Header getHeader() const;
macho::SymtabLoadCommand getSymtabLoadCommand() 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;
};
}
}
#endif
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