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//===- ELFObjectReader.h --------------------------------------------------===//
//
// The MCLinker Project
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef MCLD_ELF_OBJECT_READER_H
#define MCLD_ELF_OBJECT_READER_H
#ifdef ENABLE_UNITTEST
#include <gtest.h>
#endif
#include <mcld/LD/ObjectReader.h>
#include <mcld/ADT/Flags.h>
namespace mcld {
class Module;
class Input;
class IRBuilder;
class GNULDBackend;
class ELFReaderIF;
class EhFrameReader;
class LinkerConfig;
/** \lclass ELFObjectReader
* \brief ELFObjectReader reads target-independent parts of ELF object file
*/
class ELFObjectReader : public ObjectReader
{
public:
enum ReadFlagType {
ParseEhFrame = 0x1, ///< parse .eh_frame section if the bit is set.
NumOfReadFlags = 1
};
typedef Flags<ReadFlagType> ReadFlag;
public:
ELFObjectReader(GNULDBackend& pBackend,
IRBuilder& pBuilder,
const LinkerConfig& pConfig);
~ELFObjectReader();
// ----- observers ----- //
bool isMyFormat(Input &pFile) const;
// ----- readers ----- //
bool readHeader(Input& pFile);
virtual bool readSections(Input& pFile);
virtual bool readSymbols(Input& pFile);
/// readRelocations - read relocation sections
///
/// This function should be called after symbol resolution.
virtual bool readRelocations(Input& pFile);
private:
ELFReaderIF* m_pELFReader;
EhFrameReader* m_pEhFrameReader;
IRBuilder& m_Builder;
ReadFlag m_ReadFlag;
GNULDBackend& m_Backend;
const LinkerConfig& m_Config;
};
} // namespace of mcld
#endif