1 //===-- RegisterContextHistory.h ----------------------------------------*- C++
2 //-*-===//
3 //
4 //                     The LLVM Compiler Infrastructure
5 //
6 // This file is distributed under the University of Illinois Open Source
7 // License. See LICENSE.TXT for details.
8 //
9 //===----------------------------------------------------------------------===//
10 
11 #ifndef lldb_RegisterContextHistory_h_
12 #define lldb_RegisterContextHistory_h_
13 
14 // C Includes
15 // C++ Includes
16 #include <vector>
17 
18 // Other libraries and framework includes
19 // Project includes
20 #include "lldb/Symbol/SymbolContext.h"
21 #include "lldb/Target/RegisterContext.h"
22 #include "lldb/lldb-private.h"
23 
24 namespace lldb_private {
25 
26 class RegisterContextHistory : public lldb_private::RegisterContext {
27 public:
28   typedef std::shared_ptr<RegisterContextHistory> SharedPtr;
29 
30   RegisterContextHistory(Thread &thread, uint32_t concrete_frame_idx,
31                          uint32_t address_byte_size, lldb::addr_t pc_value);
32 
33   ~RegisterContextHistory() override;
34 
35   void InvalidateAllRegisters() override;
36 
37   size_t GetRegisterCount() override;
38 
39   const lldb_private::RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override;
40 
41   size_t GetRegisterSetCount() override;
42 
43   const lldb_private::RegisterSet *GetRegisterSet(size_t reg_set) override;
44 
45   bool ReadRegister(const lldb_private::RegisterInfo *reg_info,
46                     lldb_private::RegisterValue &value) override;
47 
48   bool WriteRegister(const lldb_private::RegisterInfo *reg_info,
49                      const lldb_private::RegisterValue &value) override;
50 
51   bool ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
52 
53   bool WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
54 
55   uint32_t ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind,
56                                                uint32_t num) override;
57 
58 private:
59   //------------------------------------------------------------------
60   // For RegisterContextLLDB only
61   //------------------------------------------------------------------
62 
63   lldb_private::RegisterSet m_reg_set0; // register set 0 (PC only)
64   lldb_private::RegisterInfo m_pc_reg_info;
65 
66   lldb::addr_t m_pc_value;
67 
68   DISALLOW_COPY_AND_ASSIGN(RegisterContextHistory);
69 };
70 } // namespace lldb_private
71 
72 #endif // lldb_RegisterContextHistory_h_
73