ThreadGDBRemote.h revision 355940 
1//===-- ThreadGDBRemote.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 liblldb_ThreadGDBRemote_h_
10#define liblldb_ThreadGDBRemote_h_
11
12#include <string>
13
14#include "lldb/Target/Thread.h"
15#include "lldb/Utility/StructuredData.h"
16
17class StringExtractor;
18
19namespace lldb_private {
20class Process;
21
22namespace process_gdb_remote {
23
24class ProcessGDBRemote;
25
26class ThreadGDBRemote : public Thread {
27public:
28  ThreadGDBRemote(Process &process, lldb::tid_t tid);
29
30  ~ThreadGDBRemote() override;
31
32  void WillResume(lldb::StateType resume_state) override;
33
34  void RefreshStateAfterStop() override;
35
36  const char *GetName() override;
37
38  const char *GetQueueName() override;
39
40  lldb::QueueKind GetQueueKind() override;
41
42  lldb::queue_id_t GetQueueID() override;
43
44  lldb::QueueSP GetQueue() override;
45
46  lldb::addr_t GetQueueLibdispatchQueueAddress() override;
47
48  void SetQueueLibdispatchQueueAddress(lldb::addr_t dispatch_queue_t) override;
49
50  bool ThreadHasQueueInformation() const override;
51
52  lldb::RegisterContextSP GetRegisterContext() override;
53
54  lldb::RegisterContextSP
55  CreateRegisterContextForFrame(StackFrame *frame) override;
56
57  void Dump(Log *log, uint32_t index);
58
59  static bool ThreadIDIsValid(lldb::tid_t thread);
60
61  bool ShouldStop(bool &step_more);
62
63  const char *GetBasicInfoAsString();
64
65  void SetName(const char *name) override {
66    if (name && name[0])
67      m_thread_name.assign(name);
68    else
69      m_thread_name.clear();
70  }
71
72  lldb::addr_t GetThreadDispatchQAddr() { return m_thread_dispatch_qaddr; }
73
74  void SetThreadDispatchQAddr(lldb::addr_t thread_dispatch_qaddr) {
75    m_thread_dispatch_qaddr = thread_dispatch_qaddr;
76  }
77
78  void ClearQueueInfo();
79
80  void SetQueueInfo(std::string &&queue_name, lldb::QueueKind queue_kind,
81                    uint64_t queue_serial, lldb::addr_t dispatch_queue_t,
82                    lldb_private::LazyBool associated_with_libdispatch_queue);
83
84  lldb_private::LazyBool GetAssociatedWithLibdispatchQueue() override;
85
86  void SetAssociatedWithLibdispatchQueue(
87      lldb_private::LazyBool associated_with_libdispatch_queue) override;
88
89  StructuredData::ObjectSP FetchThreadExtendedInfo() override;
90
91protected:
92  friend class ProcessGDBRemote;
93
94  std::string m_thread_name;
95  std::string m_dispatch_queue_name;
96  lldb::addr_t m_thread_dispatch_qaddr;
97  lldb::addr_t m_dispatch_queue_t;
98  lldb::QueueKind
99      m_queue_kind; // Queue info from stop reply/stop info for thread
100  uint64_t
101      m_queue_serial_number; // Queue info from stop reply/stop info for thread
102  lldb_private::LazyBool m_associated_with_libdispatch_queue;
103
104  bool PrivateSetRegisterValue(uint32_t reg, llvm::ArrayRef<uint8_t> data);
105
106  bool PrivateSetRegisterValue(uint32_t reg, uint64_t regval);
107
108  bool CachedQueueInfoIsValid() const {
109    return m_queue_kind != lldb::eQueueKindUnknown;
110  }
111  void SetStopInfoFromPacket(StringExtractor &stop_packet, uint32_t stop_id);
112
113  bool CalculateStopInfo() override;
114};
115
116} // namespace process_gdb_remote
117} // namespace lldb_private
118
119#endif // liblldb_ThreadGDBRemote_h_
120