1 //===-- NativeThreadNetBSD.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_NativeThreadNetBSD_H_
10 #define liblldb_NativeThreadNetBSD_H_
11 
12 #include "lldb/Host/common/NativeThreadProtocol.h"
13 
14 #include "Plugins/Process/NetBSD/NativeRegisterContextNetBSD.h"
15 
16 #include <csignal>
17 #include <map>
18 #include <string>
19 
20 namespace lldb_private {
21 namespace process_netbsd {
22 
23 class NativeProcessNetBSD;
24 
25 class NativeThreadNetBSD : public NativeThreadProtocol {
26   friend class NativeProcessNetBSD;
27 
28 public:
29   NativeThreadNetBSD(NativeProcessNetBSD &process, lldb::tid_t tid);
30 
31   // NativeThreadProtocol Interface
32   std::string GetName() override;
33 
34   lldb::StateType GetState() override;
35 
36   bool GetStopReason(ThreadStopInfo &stop_info,
37                      std::string &description) override;
38 
39   NativeRegisterContextNetBSD &GetRegisterContext() override;
40 
41   Status SetWatchpoint(lldb::addr_t addr, size_t size, uint32_t watch_flags,
42                        bool hardware) override;
43 
44   Status RemoveWatchpoint(lldb::addr_t addr) override;
45 
46   Status SetHardwareBreakpoint(lldb::addr_t addr, size_t size) override;
47 
48   Status RemoveHardwareBreakpoint(lldb::addr_t addr) override;
49 
50 private:
51   // Interface for friend classes
52 
53   Status Resume();
54   Status SingleStep();
55   Status Suspend();
56 
57   void SetStoppedBySignal(uint32_t signo, const siginfo_t *info = nullptr);
58   void SetStoppedByBreakpoint();
59   void SetStoppedByTrace();
60   void SetStoppedByExec();
61   void SetStoppedByWatchpoint(uint32_t wp_index);
62   void SetStoppedByFork(lldb::pid_t child_pid, lldb::tid_t child_tid);
63   void SetStoppedByVFork(lldb::pid_t child_pid, lldb::tid_t child_tid);
64   void SetStoppedByVForkDone();
65   void SetStoppedWithNoReason();
66   void SetStopped();
67   void SetRunning();
68   void SetStepping();
69 
70   llvm::Error CopyWatchpointsFrom(NativeThreadNetBSD& source);
71 
72   // Member Variables
73   lldb::StateType m_state;
74   ThreadStopInfo m_stop_info;
75   std::unique_ptr<NativeRegisterContextNetBSD> m_reg_context_up;
76   std::string m_stop_description;
77   using WatchpointIndexMap = std::map<lldb::addr_t, uint32_t>;
78   WatchpointIndexMap m_watchpoint_index_map;
79   WatchpointIndexMap m_hw_break_index_map;
80 };
81 
82 typedef std::shared_ptr<NativeThreadNetBSD> NativeThreadNetBSDSP;
83 } // namespace process_netbsd
84 } // namespace lldb_private
85 
86 #endif // #ifndef liblldb_NativeThreadNetBSD_H_
87