ELFSegmentFactory.h revision 87f34658dec9097d987d254a990ea7f311bfc95f 
1//===- ELFSegmentFactory.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_LD_ELFSEGMENTFACTORY_H
10#define MCLD_LD_ELFSEGMENTFACTORY_H
11#ifdef ENABLE_UNITTEST
12#include <gtest.h>
13#endif
14
15#include <llvm/Support/DataTypes.h>
16#include <llvm/Support/ELF.h>
17#include <vector>
18
19namespace mcld
20{
21
22class ELFSegment;
23class LDSection;
24
25/** \class ELFSegmentFactory
26 *  \brief provide the interface to create and delete an ELFSegment
27 */
28class ELFSegmentFactory
29{
30public:
31  typedef std::vector<ELFSegment*> Segments;
32  typedef Segments::const_iterator const_iterator;
33  typedef Segments::iterator iterator;
34
35  const_iterator begin() const { return m_Segments.begin(); }
36  iterator       begin()       { return m_Segments.begin(); }
37  const_iterator end()   const { return m_Segments.end(); }
38  iterator       end()         { return m_Segments.end(); }
39
40  const ELFSegment* front() const { return m_Segments.front(); }
41  ELFSegment*       front()       { return m_Segments.front(); }
42  const ELFSegment* back()  const { return m_Segments.back(); }
43  ELFSegment*       back()        { return m_Segments.back(); }
44
45  size_t size() const { return m_Segments.size(); }
46
47  bool empty() const { return m_Segments.empty(); }
48
49  iterator find(uint32_t pType, uint32_t pFlagSet, uint32_t pFlagClear);
50
51  const_iterator
52  find(uint32_t pType, uint32_t pFlagSet, uint32_t pFlagClear) const;
53
54  iterator       find(uint32_t pType, const LDSection* pSection);
55
56  const_iterator find(uint32_t pType, const LDSection* pSection) const;
57
58  /// produce - produce an empty ELF segment information.
59  /// this function will create an ELF segment
60  /// @param pType - p_type in ELF program header
61  ELFSegment* produce(uint32_t pType, uint32_t pFlag = llvm::ELF::PF_R);
62
63  void erase(iterator pSegment);
64
65private:
66  Segments m_Segments;
67};
68
69} // namespace of mcld
70
71#endif
72
73