1 //===-- RegisterContextMemory.h ---------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERCONTEXTMEMORY_H 10 #define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERCONTEXTMEMORY_H 11 12 #include <vector> 13 14 #include "lldb/Target/DynamicRegisterInfo.h" 15 #include "lldb/Target/RegisterContext.h" 16 #include "lldb/Utility/DataExtractor.h" 17 #include "lldb/lldb-private.h" 18 19 class RegisterContextMemory : public lldb_private::RegisterContext { 20 public: 21 RegisterContextMemory(lldb_private::Thread &thread, 22 uint32_t concrete_frame_idx, 23 lldb_private::DynamicRegisterInfo ®_info, 24 lldb::addr_t reg_data_addr); 25 26 ~RegisterContextMemory() override; 27 28 void InvalidateAllRegisters() override; 29 30 size_t GetRegisterCount() override; 31 32 const lldb_private::RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override; 33 34 size_t GetRegisterSetCount() override; 35 36 const lldb_private::RegisterSet *GetRegisterSet(size_t reg_set) override; 37 38 uint32_t ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, 39 uint32_t num) override; 40 41 // If all of the thread register are in a contiguous buffer in 42 // memory, then the default ReadRegister/WriteRegister and 43 // ReadAllRegisterValues/WriteAllRegisterValues will work. If thread 44 // registers are not contiguous, clients will want to subclass this 45 // class and modify the read/write functions as needed. 46 47 bool ReadRegister(const lldb_private::RegisterInfo *reg_info, 48 lldb_private::RegisterValue ®_value) override; 49 50 bool WriteRegister(const lldb_private::RegisterInfo *reg_info, 51 const lldb_private::RegisterValue ®_value) override; 52 53 bool ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override; 54 55 bool WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override; 56 57 void SetAllRegisterData(const lldb::DataBufferSP &data_sp); 58 59 protected: 60 void SetAllRegisterValid(bool b); 61 62 lldb_private::DynamicRegisterInfo &m_reg_infos; 63 std::vector<bool> m_reg_valid; 64 lldb::WritableDataBufferSP m_data; 65 lldb_private::DataExtractor m_reg_data; 66 lldb::addr_t m_reg_data_addr; // If this is valid, then we have a register 67 // context that is stored in memmory 68 69 private: 70 RegisterContextMemory(const RegisterContextMemory &) = delete; 71 const RegisterContextMemory & 72 operator=(const RegisterContextMemory &) = delete; 73 }; 74 75 #endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERCONTEXTMEMORY_H 76