MipsGOT.h revision 22add6ff3426df1a85089fe6a6e1597ee3b6f300 
1//===- MipsGOT.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_MIPS_GOT_H
10#define MCLD_MIPS_GOT_H
11#ifdef ENABLE_UNITTEST
12#include <gtest.h>
13#endif
14
15#include <llvm/ADT/DenseMap.h>
16
17#include <mcld/Target/GOT.h>
18
19namespace mcld
20{
21class LDSection;
22class MemoryRegion;
23
24/** \class MipsGOT
25 *  \brief Mips Global Offset Table.
26 */
27class MipsGOT : public GOT
28{
29public:
30  MipsGOT(LDSection& pSection);
31
32  uint64_t emit(MemoryRegion& pRegion);
33
34  void reserveLocalEntry();
35  void reserveGlobalEntry();
36
37  size_t getTotalNum() const;
38  size_t getLocalNum() const;
39
40  GOT::Entry* consumeLocal();
41  GOT::Entry* consumeGlobal();
42
43  void setLocal(const ResolveInfo* pInfo) {
44    m_GOTTypeMap[pInfo] = false;
45  }
46
47  void setGlobal(const ResolveInfo* pInfo) {
48    m_GOTTypeMap[pInfo] = true;
49  }
50
51  bool isLocal(const ResolveInfo* pInfo) {
52    return m_GOTTypeMap[pInfo] == false;
53  }
54
55  bool isGlobal(const ResolveInfo* pInfo) {
56    return m_GOTTypeMap[pInfo] == true;
57  }
58
59  /// hasGOT1 - return if this got section has any GOT1 entry
60  bool hasGOT1() const;
61
62private:
63  typedef llvm::DenseMap<const ResolveInfo*, bool> SymbolTypeMapType;
64
65private:
66  SymbolTypeMapType m_GOTTypeMap;
67
68  iterator m_LocalGOTIterator;  // last local GOT entries
69  iterator m_GlobalGOTIterator; // last global GOT entries
70  size_t m_pLocalNum;
71};
72
73} // namespace of mcld
74
75#endif
76
77