lldb/source/Plugins/Process/FreeBSD/NativeThreadFreeBSD.h

   1 //===-- NativeThreadFreeBSD.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_NativeThreadFreeBSD_H_
  10 #define liblldb_NativeThreadFreeBSD_H_
  11
  12 #include "lldb/Host/common/NativeThreadProtocol.h"
  13
  14 #include "Plugins/Process/FreeBSD/NativeRegisterContextFreeBSD.h"
  15
  16 #include <csignal>
  17 #include <map>
  18 #include <string>
  19
  20 namespace lldb_private {
  21 namespace process_freebsd {
  22
  23 class NativeProcessFreeBSD;
  24
  25 class NativeThreadFreeBSD : public NativeThreadProtocol {
  26   friend class NativeProcessFreeBSD;
  27
  28 public:
  29   NativeThreadFreeBSD(NativeProcessFreeBSD &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   NativeRegisterContextFreeBSD &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   llvm::Expected<std::unique_ptr<llvm::MemoryBuffer>>
  51   GetSiginfo() const override;
  52
  53 private:
  54   // Interface for friend classes
  55
  56   Status Resume();
  57   Status SingleStep();
  58   Status Suspend();
  59
  60   void SetStoppedBySignal(uint32_t signo, const siginfo_t *info = nullptr);
  61   void SetStoppedByBreakpoint();
  62   void SetStoppedByTrace();
  63   void SetStoppedByExec();
  64   void SetStoppedByWatchpoint(uint32_t wp_index);
  65   void SetStoppedByFork(lldb::pid_t child_pid, lldb::tid_t child_tid);
  66   void SetStoppedByVFork(lldb::pid_t child_pid, lldb::tid_t child_tid);
  67   void SetStoppedByVForkDone();
  68   void SetStoppedWithNoReason();
  69   void SetStopped();
  70   void SetRunning();
  71   void SetStepping();
  72
  73   llvm::Error CopyWatchpointsFrom(NativeThreadFreeBSD &source);
  74
  75   // Member Variables
  76   lldb::StateType m_state;
  77   ThreadStopInfo m_stop_info;
  78   std::unique_ptr<NativeRegisterContextFreeBSD> m_reg_context_up;
  79   std::string m_stop_description;
  80   using WatchpointIndexMap = std::map<lldb::addr_t, uint32_t>;
  81   WatchpointIndexMap m_watchpoint_index_map;
  82   WatchpointIndexMap m_hw_break_index_map;
  83 };
  84
  85 typedef std::shared_ptr<NativeThreadFreeBSD> NativeThreadFreeBSDSP;
  86 } // namespace process_freebsd
  87 } // namespace lldb_private
  88
  89 #endif // #ifndef liblldb_NativeThreadFreeBSD_H_