1//===- THMToTHMStub.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 TARGET_ARM_THMTOTHMSTUB_H_
10#define TARGET_ARM_THMTOTHMSTUB_H_
11
12#include "mcld/Fragment/Stub.h"
13#include <llvm/Support/DataTypes.h>
14#include <string>
15
16namespace mcld {
17
18class Relocation;
19class ResolveInfo;
20
21/** \class THMToTHMStub
22 *  \brief ARM stub for long call from ARM source to ARM target
23 *
24 */
25class THMToTHMStub : public Stub {
26 public:
27  THMToTHMStub(bool pIsOutputPIC, bool pUsingThumb2);
28
29  ~THMToTHMStub();
30
31  // isMyDuty
32  bool isMyDuty(const class Relocation& pReloc,
33                uint64_t pSource,
34                uint64_t pTargetSymValue) const;
35
36  // observers
37  const std::string& name() const;
38
39  const uint8_t* getContent() const;
40
41  size_t size() const;
42
43  size_t alignment() const;
44
45  // for T bit of this stub
46  uint64_t initSymValue() const;
47
48 private:
49  THMToTHMStub(const THMToTHMStub&);
50
51  THMToTHMStub& operator=(const THMToTHMStub&);
52
53  /// for doClone
54  THMToTHMStub(const uint32_t* pData,
55               size_t pSize,
56               const_fixup_iterator pBegin,
57               const_fixup_iterator pEnd,
58               bool pUsingThumb2);
59
60  /// doClone
61  Stub* doClone();
62
63 private:
64  static const uint32_t PIC_TEMPLATE[];
65  static const uint32_t TEMPLATE[];
66  const uint32_t* m_pData;
67  std::string m_Name;
68  size_t m_Size;
69  bool m_bUsingThumb2;
70};
71
72}  // namespace mcld
73
74#endif  // TARGET_ARM_THMTOTHMSTUB_H_
75