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//===- X86GOT.h -----------------------------------------------------------===//
//
// The MCLinker Project
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef MCLD_X86_GOT_H
#define MCLD_X86_GOT_H
#ifdef ENABLE_UNITTEST
#include <gtest.h>
#endif
#include "X86PLT.h"
#include <mcld/Target/GOT.h>
namespace mcld
{
class LDSection;
/** \class X86GOT
* \brief X86 Global Offset Table.
*/
const unsigned int X86GOT0Num = 3;
class X86GOT : public GOT
{
friend void mcld::X86PLT::reserveEntry(size_t pNum);
friend mcld::PLTEntry* mcld::X86PLT::getPLTEntry(
const mcld::ResolveInfo& pSymbol,bool& pExist);
friend mcld::GOTEntry* mcld::X86PLT::getGOTPLTEntry(
const mcld::ResolveInfo& pSymbol,bool& pExist);
typedef llvm::DenseMap<const ResolveInfo*, GOTEntry*> SymbolIndexMapType;
public:
typedef llvm::MCSectionData::iterator iterator;
typedef llvm::MCSectionData::const_iterator const_iterator;
public:
X86GOT(LDSection& pSection, llvm::MCSectionData& pSectionData);
~X86GOT();
//Reserve general GOT entries.
void reserveEntry(size_t pNum = 1);
GOTEntry* getEntry(const ResolveInfo& pSymbol, bool& pExist);
void applyGOT0(uint64_t pAddress);
iterator begin();
const_iterator begin() const;
iterator end();
const_iterator end() const;
unsigned int getGOTPLTNum() const;
iterator getLastGOT0();
const iterator getLastGOT0() const;
private:
unsigned int m_GeneralGOTNum;
unsigned int m_GOTPLTNum;
// Used by getGeneralGOTEntry()
iterator m_GeneralGOTIterator;
// Used by getGOTPLTEntry()
iterator m_GOTPLTIterator;
// The last GOT0 entry
iterator m_LastGOT0;
SymbolIndexMapType m_GOTPLTMap;
SymbolIndexMapType m_GeneralGOTMap;
};
} // namespace of mcld
#endif
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