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 #include <vector>
15 
16 #include "lldb/Symbol/SymbolContext.h"
17 #include "lldb/Target/RegisterContext.h"
18 #include "lldb/lldb-private.h"
19 
20 namespace lldb_private {
21 
22 class RegisterContextHistory : public lldb_private::RegisterContext {
23 public:
24   typedef std::shared_ptr<RegisterContextHistory> SharedPtr;
25 
26   RegisterContextHistory(Thread &thread, uint32_t concrete_frame_idx,
27                          uint32_t address_byte_size, lldb::addr_t pc_value);
28 
29   ~RegisterContextHistory() override;
30 
31   void InvalidateAllRegisters() override;
32 
33   size_t GetRegisterCount() override;
34 
35   const lldb_private::RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override;
36 
37   size_t GetRegisterSetCount() override;
38 
39   const lldb_private::RegisterSet *GetRegisterSet(size_t reg_set) override;
40 
41   bool ReadRegister(const lldb_private::RegisterInfo *reg_info,
42                     lldb_private::RegisterValue &value) override;
43 
44   bool WriteRegister(const lldb_private::RegisterInfo *reg_info,
45                      const lldb_private::RegisterValue &value) override;
46 
47   bool ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
48 
49   bool WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
50 
51   uint32_t ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind,
52                                                uint32_t num) override;
53 
54 private:
55   //------------------------------------------------------------------
56   // For RegisterContextLLDB only
57   //------------------------------------------------------------------
58 
59   lldb_private::RegisterSet m_reg_set0; // register set 0 (PC only)
60   lldb_private::RegisterInfo m_pc_reg_info;
61 
62   lldb::addr_t m_pc_value;
63 
64   DISALLOW_COPY_AND_ASSIGN(RegisterContextHistory);
65 };
66 } // namespace lldb_private
67 
68 #endif // lldb_RegisterContextHistory_h_
69