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//===- Fragment.h ---------------------------------------------------------===//
//
// The MCLinker Project
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef MCLD_FRAGMENT_FRAGMENT_H_
#define MCLD_FRAGMENT_FRAGMENT_H_
#include "mcld/Support/Compiler.h"
#include <llvm/ADT/ilist_node.h>
#include <llvm/Support/DataTypes.h>
#include <cassert>
#include <cstddef>
namespace mcld {
class SectionData;
/** \class Fragment
* \brief Fragment is the minimun linking unit of MCLinker.
*/
class Fragment : public llvm::ilist_node_with_parent<Fragment, SectionData> {
public:
enum Type { Alignment, Fillment, Region, Target, Stub, Null };
public:
Fragment();
explicit Fragment(Type pKind, SectionData* pParent = NULL);
virtual ~Fragment();
Type getKind() const { return m_Kind; }
const SectionData* getParent() const { return m_pParent; }
SectionData* getParent() { return m_pParent; }
void setParent(SectionData* pValue) { m_pParent = pValue; }
uint64_t getOffset() const;
void setOffset(uint64_t pOffset) { m_Offset = pOffset; }
bool hasOffset() const;
static bool classof(const Fragment* O) { return true; }
virtual size_t size() const {
assert(false && "Can not call abstract Fragment::size()!");
return 0;
}
private:
Type m_Kind;
SectionData* m_pParent;
uint64_t m_Offset;
private:
DISALLOW_COPY_AND_ASSIGN(Fragment);
};
} // namespace mcld
#endif // MCLD_FRAGMENT_FRAGMENT_H_
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