1//===- Fragment.h ---------------------------------------------------------===// 2// 3// The MCLinker Project 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9#ifndef MCLD_FRAGMENT_H 10#define MCLD_FRAGMENT_H 11#ifdef ENABLE_UNITTEST 12#include <gtest.h> 13#endif 14 15#include <llvm/ADT/ilist_node.h> 16#include <llvm/Support/DataTypes.h> 17 18#include <cstddef> 19 20namespace mcld 21{ 22 23class SectionData; 24 25/** \class Fragment 26 * \brief Fragment is the minimun linking unit of MCLinker. 27 */ 28class Fragment : public llvm::ilist_node<Fragment> 29{ 30public: 31 enum Type { 32 Alignment, 33 Fillment, 34 Region, 35 Relocation, 36 Target 37 }; 38 39public: 40 Fragment(); 41 42 Fragment(Type pKind, SectionData *pParent = NULL); 43 44 virtual ~Fragment(); 45 46 Type getKind() const { return m_Kind; } 47 48 SectionData *getParent() const { return m_pParent; } 49 50 void setParent(SectionData *pValue) { m_pParent = pValue; } 51 52 uint64_t getOffset() const { return m_Offset; } 53 54 void setOffset(uint64_t pOffset) { m_Offset = pOffset; } 55 56 unsigned int getLayoutOrder() const { return m_LayoutOrder; } 57 58 void setLayoutOrder(unsigned int pValue) { m_LayoutOrder = pValue; } 59 60 static bool classof(const Fragment *O) { return true; } 61 62private: 63 Fragment(const Fragment& ); // DO NOT IMPLEMENT 64 Fragment& operator=(const Fragment& ); // DO NOT IMPLEMENT 65 66private: 67 Type m_Kind; 68 SectionData* m_pParent; 69 70 uint64_t m_Offset; 71 unsigned int m_LayoutOrder; 72 73}; 74 75} // namespace of mcld 76 77#endif 78 79