1 | //===-- GDBRemoteRegisterContext.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_GDB_REMOTE_GDBREMOTEREGISTERCONTEXT_H |
10 | #define LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_GDBREMOTEREGISTERCONTEXT_H |
11 | |
12 | #include <vector> |
13 | |
14 | #include "lldb/Target/DynamicRegisterInfo.h" |
15 | #include "lldb/Target/RegisterContext.h" |
16 | #include "lldb/Utility/ConstString.h" |
17 | #include "lldb/Utility/DataExtractor.h" |
18 | #include "lldb/lldb-enumerations.h" |
19 | #include "lldb/lldb-private.h" |
20 | |
21 | #include "GDBRemoteCommunicationClient.h" |
22 | |
23 | class ; |
24 | |
25 | namespace lldb_private { |
26 | namespace process_gdb_remote { |
27 | |
28 | class ThreadGDBRemote; |
29 | class ProcessGDBRemote; |
30 | class GDBRemoteDynamicRegisterInfo; |
31 | |
32 | typedef std::shared_ptr<GDBRemoteDynamicRegisterInfo> |
33 | GDBRemoteDynamicRegisterInfoSP; |
34 | |
35 | class GDBRemoteDynamicRegisterInfo final : public DynamicRegisterInfo { |
36 | public: |
37 | GDBRemoteDynamicRegisterInfo() : DynamicRegisterInfo() {} |
38 | |
39 | ~GDBRemoteDynamicRegisterInfo() override = default; |
40 | |
41 | void UpdateARM64SVERegistersInfos(uint64_t vg); |
42 | void UpdateARM64SMERegistersInfos(uint64_t svg); |
43 | }; |
44 | |
45 | class GDBRemoteRegisterContext : public RegisterContext { |
46 | public: |
47 | GDBRemoteRegisterContext(ThreadGDBRemote &thread, uint32_t concrete_frame_idx, |
48 | GDBRemoteDynamicRegisterInfoSP reg_info_sp, |
49 | bool read_all_at_once, bool write_all_at_once); |
50 | |
51 | ~GDBRemoteRegisterContext() override; |
52 | |
53 | void InvalidateAllRegisters() override; |
54 | |
55 | size_t GetRegisterCount() override; |
56 | |
57 | const RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override; |
58 | |
59 | size_t GetRegisterSetCount() override; |
60 | |
61 | const RegisterSet *GetRegisterSet(size_t reg_set) override; |
62 | |
63 | bool ReadRegister(const RegisterInfo *reg_info, |
64 | RegisterValue &value) override; |
65 | |
66 | bool WriteRegister(const RegisterInfo *reg_info, |
67 | const RegisterValue &value) override; |
68 | |
69 | bool ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override; |
70 | |
71 | bool WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override; |
72 | |
73 | bool ReadAllRegisterValues(RegisterCheckpoint ®_checkpoint) override; |
74 | |
75 | bool |
76 | WriteAllRegisterValues(const RegisterCheckpoint ®_checkpoint) override; |
77 | |
78 | uint32_t ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, |
79 | uint32_t num) override; |
80 | |
81 | bool RegisterWriteCausesReconfigure(const llvm::StringRef name) override; |
82 | |
83 | bool ReconfigureRegisterInfo() override; |
84 | |
85 | protected: |
86 | friend class ThreadGDBRemote; |
87 | |
88 | bool ReadRegisterBytes(const RegisterInfo *reg_info); |
89 | |
90 | bool (const RegisterInfo *reg_info, DataExtractor &data, |
91 | uint32_t data_offset); |
92 | |
93 | bool PrivateSetRegisterValue(uint32_t reg, llvm::ArrayRef<uint8_t> data); |
94 | |
95 | bool PrivateSetRegisterValue(uint32_t reg, uint64_t val); |
96 | |
97 | void SetAllRegisterValid(bool b); |
98 | |
99 | bool GetRegisterIsValid(uint32_t reg) const { |
100 | assert(reg < m_reg_valid.size()); |
101 | if (reg < m_reg_valid.size()) |
102 | return m_reg_valid[reg]; |
103 | return false; |
104 | } |
105 | |
106 | void SetRegisterIsValid(const RegisterInfo *reg_info, bool valid) { |
107 | if (reg_info) |
108 | return SetRegisterIsValid(reg: reg_info->kinds[lldb::eRegisterKindLLDB], |
109 | valid); |
110 | } |
111 | |
112 | void SetRegisterIsValid(uint32_t reg, bool valid) { |
113 | assert(reg < m_reg_valid.size()); |
114 | if (reg < m_reg_valid.size()) |
115 | m_reg_valid[reg] = valid; |
116 | } |
117 | |
118 | GDBRemoteDynamicRegisterInfoSP m_reg_info_sp; |
119 | std::vector<bool> m_reg_valid; |
120 | DataExtractor m_reg_data; |
121 | bool m_read_all_at_once; |
122 | bool m_write_all_at_once; |
123 | bool m_gpacket_cached; |
124 | |
125 | private: |
126 | // Helper function for ReadRegisterBytes(). |
127 | bool GetPrimordialRegister(const RegisterInfo *reg_info, |
128 | GDBRemoteCommunicationClient &gdb_comm); |
129 | // Helper function for WriteRegisterBytes(). |
130 | bool SetPrimordialRegister(const RegisterInfo *reg_info, |
131 | GDBRemoteCommunicationClient &gdb_comm); |
132 | |
133 | GDBRemoteRegisterContext(const GDBRemoteRegisterContext &) = delete; |
134 | const GDBRemoteRegisterContext & |
135 | operator=(const GDBRemoteRegisterContext &) = delete; |
136 | }; |
137 | |
138 | } // namespace process_gdb_remote |
139 | } // namespace lldb_private |
140 | |
141 | #endif // LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_GDBREMOTEREGISTERCONTEXT_H |
142 | |