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
19class RegisterContextMemory : public lldb_private::RegisterContext {
20public:
21 RegisterContextMemory(lldb_private::Thread &thread,
22 uint32_t concrete_frame_idx,
23 lldb_private::DynamicRegisterInfo &reg_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 &reg_value) override;
49
50 bool WriteRegister(const lldb_private::RegisterInfo *reg_info,
51 const lldb_private::RegisterValue &reg_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
59protected:
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
69private:
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

source code of lldb/source/Plugins/Process/Utility/RegisterContextMemory.h