contrib/llvm/tools/lldb/source/Plugins/Process/Utility/RegisterContextHistory.h

   1 //===-- RegisterContextHistory.h ----------------------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef lldb_RegisterContextHistory_h_
  11 #define lldb_RegisterContextHistory_h_
  12
  13 // C Includes
  14 // C++ Includes
  15 #include <vector>
  16
  17 // Other libraries and framework includes
  18 // Project includes
  19 #include "lldb/lldb-private.h"
  20 #include "lldb/Target/RegisterContext.h"
  21 #include "lldb/Symbol/SymbolContext.h"
  22
  23 namespace lldb_private {
  24
  25 class RegisterContextHistory : public lldb_private::RegisterContext
  26 {
  27 public:
  28     typedef std::shared_ptr<RegisterContextHistory> SharedPtr;
  29
  30     RegisterContextHistory (Thread &thread, uint32_t concrete_frame_idx, uint32_t address_byte_size, lldb::addr_t pc_value);
  31
  32     ~RegisterContextHistory() override;
  33
  34     void
  35     InvalidateAllRegisters() override;
  36
  37     size_t
  38     GetRegisterCount() override;
  39
  40     const lldb_private::RegisterInfo *
  41     GetRegisterInfoAtIndex(size_t reg) override;
  42
  43     size_t
  44     GetRegisterSetCount() override;
  45
  46     const lldb_private::RegisterSet *
  47     GetRegisterSet(size_t reg_set) override;
  48
  49     bool
  50     ReadRegister(const lldb_private::RegisterInfo *reg_info,
  51                  lldb_private::RegisterValue &value) override;
  52
  53     bool
  54     WriteRegister(const lldb_private::RegisterInfo *reg_info,
  55                   const lldb_private::RegisterValue &value) override;
  56
  57     bool
  58     ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
  59
  60     bool
  61     WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
  62
  63     uint32_t
  64     ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
  65
  66 private:
  67     //------------------------------------------------------------------
  68     // For RegisterContextLLDB only
  69     //------------------------------------------------------------------
  70
  71     lldb_private::RegisterSet m_reg_set0; // register set 0 (PC only)
  72     lldb_private::RegisterInfo m_pc_reg_info;
  73
  74     lldb::addr_t m_pc_value;
  75
  76     DISALLOW_COPY_AND_ASSIGN (RegisterContextHistory);
  77 };
  78 } // namespace lldb_private
  79
  80 #endif // lldb_RegisterContextHistory_h_