1cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao//===- Fragment.h ---------------------------------------------------------===// 2cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// 3cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// The MCLinker Project 4cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// 5cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// This file is distributed under the University of Illinois Open Source 6cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// License. See LICENSE.TXT for details. 7cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao// 8cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao//===----------------------------------------------------------------------===// 937b74a387bb3993387029859c2d9d051c41c724eStephen Hines#ifndef MCLD_FRAGMENT_FRAGMENT_H_ 1037b74a387bb3993387029859c2d9d051c41c724eStephen Hines#define MCLD_FRAGMENT_FRAGMENT_H_ 11cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 1237b74a387bb3993387029859c2d9d051c41c724eStephen Hines#include "mcld/Support/Compiler.h" 1322add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao 1437b74a387bb3993387029859c2d9d051c41c724eStephen Hines#include <llvm/ADT/ilist_node.h> 15cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao#include <llvm/Support/DataTypes.h> 16cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 1722add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao#include <cassert> 1837b74a387bb3993387029859c2d9d051c41c724eStephen Hines#include <cstddef> 19cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 2022add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liaonamespace mcld { 21cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 22cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liaoclass SectionData; 23cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 24cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao/** \class Fragment 25cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao * \brief Fragment is the minimun linking unit of MCLinker. 26cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao */ 2707177ff8032d136567f3e99d372cb67713f1bba8Stephen Hinesclass Fragment : public llvm::ilist_node_with_parent<Fragment, SectionData> { 2837b74a387bb3993387029859c2d9d051c41c724eStephen Hines public: 2937b74a387bb3993387029859c2d9d051c41c724eStephen Hines enum Type { Alignment, Fillment, Region, Target, Stub, Null }; 3037b74a387bb3993387029859c2d9d051c41c724eStephen Hines 3137b74a387bb3993387029859c2d9d051c41c724eStephen Hines public: 32cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao Fragment(); 33cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 3437b74a387bb3993387029859c2d9d051c41c724eStephen Hines explicit Fragment(Type pKind, SectionData* pParent = NULL); 35cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 36cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao virtual ~Fragment(); 37cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 38cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao Type getKind() const { return m_Kind; } 39cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 40d0fbbb227051be16931a1aa9b4a7722ac039c698Shih-wei Liao const SectionData* getParent() const { return m_pParent; } 4137b74a387bb3993387029859c2d9d051c41c724eStephen Hines SectionData* getParent() { return m_pParent; } 42cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 4337b74a387bb3993387029859c2d9d051c41c724eStephen Hines void setParent(SectionData* pValue) { m_pParent = pValue; } 44cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 4522add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao uint64_t getOffset() const; 46cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 47cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao void setOffset(uint64_t pOffset) { m_Offset = pOffset; } 48cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 4922add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao bool hasOffset() const; 50cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 5137b74a387bb3993387029859c2d9d051c41c724eStephen Hines static bool classof(const Fragment* O) { return true; } 52cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 5322add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao virtual size_t size() const { 5422add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao assert(false && "Can not call abstract Fragment::size()!"); 5522add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao return 0; 5622add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao } 5722add6ff3426df1a85089fe6a6e1597ee3b6f300Shih-wei Liao 5837b74a387bb3993387029859c2d9d051c41c724eStephen Hines private: 59cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao Type m_Kind; 6037b74a387bb3993387029859c2d9d051c41c724eStephen Hines 61cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao SectionData* m_pParent; 62cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 63cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao uint64_t m_Offset; 64cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 6537b74a387bb3993387029859c2d9d051c41c724eStephen Hines private: 6637b74a387bb3993387029859c2d9d051c41c724eStephen Hines DISALLOW_COPY_AND_ASSIGN(Fragment); 67cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao}; 68cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 6937b74a387bb3993387029859c2d9d051c41c724eStephen Hines} // namespace mcld 70cedee4b38f4786845183be7f5916dd520a170ae0Shih-wei Liao 7137b74a387bb3993387029859c2d9d051c41c724eStephen Hines#endif // MCLD_FRAGMENT_FRAGMENT_H_ 72