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

   1 //===-- RegisterContextMemory.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_RegisterContextMemory_h_
  11 #define lldb_RegisterContextMemory_h_
  12
  13 // C Includes
  14 // C++ Includes
  15 #include <vector>
  16
  17 // Other libraries and framework includes
  18 // Project includes
  19 #include "lldb/Target/RegisterContext.h"
  20 #include "lldb/Utility/DataExtractor.h"
  21 #include "lldb/lldb-private.h"
  22
  23 class DynamicRegisterInfo;
  24
  25 class RegisterContextMemory : public lldb_private::RegisterContext {
  26 public:
  27   RegisterContextMemory(lldb_private::Thread &thread,
  28                         uint32_t concrete_frame_idx,
  29                         DynamicRegisterInfo &reg_info,
  30                         lldb::addr_t reg_data_addr);
  31
  32   ~RegisterContextMemory() override;
  33
  34   void InvalidateAllRegisters() override;
  35
  36   size_t GetRegisterCount() override;
  37
  38   const lldb_private::RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override;
  39
  40   size_t GetRegisterSetCount() override;
  41
  42   const lldb_private::RegisterSet *GetRegisterSet(size_t reg_set) override;
  43
  44   uint32_t ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind,
  45                                                uint32_t num) override;
  46
  47   //------------------------------------------------------------------
  48   // If all of the thread register are in a contiguous buffer in
  49   // memory, then the default ReadRegister/WriteRegister and
  50   // ReadAllRegisterValues/WriteAllRegisterValues will work. If thread
  51   // registers are not contiguous, clients will want to subclass this
  52   // class and modify the read/write functions as needed.
  53   //------------------------------------------------------------------
  54
  55   bool ReadRegister(const lldb_private::RegisterInfo *reg_info,
  56                     lldb_private::RegisterValue &reg_value) override;
  57
  58   bool WriteRegister(const lldb_private::RegisterInfo *reg_info,
  59                      const lldb_private::RegisterValue &reg_value) override;
  60
  61   bool ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
  62
  63   bool WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
  64
  65   void SetAllRegisterData(const lldb::DataBufferSP &data_sp);
  66
  67 protected:
  68   void SetAllRegisterValid(bool b);
  69
  70   DynamicRegisterInfo &m_reg_infos;
  71   std::vector<bool> m_reg_valid;
  72   lldb_private::DataExtractor m_reg_data;
  73   lldb::addr_t m_reg_data_addr; // If this is valid, then we have a register
  74                                 // context that is stored in memmory
  75
  76 private:
  77   DISALLOW_COPY_AND_ASSIGN(RegisterContextMemory);
  78 };
  79
  80 #endif // lldb_RegisterContextMemory_h_