1 //===-- HistoryThread.h -----------------------------------------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
9 #ifndef liblldb_HistoryThread_h_
10 #define liblldb_HistoryThread_h_
14 #include "lldb/Core/UserSettingsController.h"
15 #include "lldb/Target/ExecutionContextScope.h"
16 #include "lldb/Target/StackFrameList.h"
17 #include "lldb/Target/Thread.h"
18 #include "lldb/Utility/Broadcaster.h"
19 #include "lldb/Utility/Event.h"
20 #include "lldb/Utility/UserID.h"
21 #include "lldb/lldb-private.h"
23 namespace lldb_private {
25 /// \class HistoryThread HistoryThread.h "HistoryThread.h"
26 /// A thread object representing a backtrace from a previous point in the
29 /// This subclass of Thread is used to provide a backtrace from earlier in
30 /// process execution. It is given a backtrace list of pc addresses and it
31 /// will create stack frames for them.
33 class HistoryThread : public lldb_private::Thread {
35 HistoryThread(lldb_private::Process &process, lldb::tid_t tid,
36 std::vector<lldb::addr_t> pcs);
38 ~HistoryThread() override;
40 lldb::RegisterContextSP GetRegisterContext() override;
42 lldb::RegisterContextSP
43 CreateRegisterContextForFrame(StackFrame *frame) override;
45 void RefreshStateAfterStop() override {}
47 bool CalculateStopInfo() override { return false; }
49 void SetExtendedBacktraceToken(uint64_t token) override {
50 m_extended_unwind_token = token;
53 uint64_t GetExtendedBacktraceToken() override {
54 return m_extended_unwind_token;
57 const char *GetQueueName() override { return m_queue_name.c_str(); }
59 void SetQueueName(const char *name) override { m_queue_name = name; }
61 lldb::queue_id_t GetQueueID() override { return m_queue_id; }
63 void SetQueueID(lldb::queue_id_t queue) override { m_queue_id = queue; }
65 const char *GetThreadName() { return m_thread_name.c_str(); }
67 uint32_t GetExtendedBacktraceOriginatingIndexID() override;
69 void SetThreadName(const char *name) { m_thread_name = name; }
71 const char *GetName() override { return m_thread_name.c_str(); }
73 void SetName(const char *name) override { m_thread_name = name; }
76 virtual lldb::StackFrameListSP GetStackFrameList();
78 mutable std::mutex m_framelist_mutex;
79 lldb::StackFrameListSP m_framelist;
80 std::vector<lldb::addr_t> m_pcs;
82 uint64_t m_extended_unwind_token;
83 std::string m_queue_name;
84 std::string m_thread_name;
85 lldb::tid_t m_originating_unique_thread_id;
86 lldb::queue_id_t m_queue_id;
89 } // namespace lldb_private
91 #endif // liblldb_HistoryThread_h_