2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
119 lines
3.7 KiB
C++
119 lines
3.7 KiB
C++
//===-- NativeThreadLinux.h ----------------------------------- -*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_NativeThreadLinux_H_
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#define liblldb_NativeThreadLinux_H_
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#include "Plugins/Process/Linux/NativeRegisterContextLinux.h"
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#include "Plugins/Process/Linux/SingleStepCheck.h"
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#include "lldb/Host/common/NativeThreadProtocol.h"
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#include "lldb/lldb-private-forward.h"
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#include <csignal>
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#include <map>
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#include <memory>
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#include <string>
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namespace lldb_private {
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namespace process_linux {
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class NativeProcessLinux;
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class NativeThreadLinux : public NativeThreadProtocol {
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friend class NativeProcessLinux;
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public:
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NativeThreadLinux(NativeProcessLinux &process, lldb::tid_t tid);
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// ---------------------------------------------------------------------
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// NativeThreadProtocol Interface
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// ---------------------------------------------------------------------
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std::string GetName() override;
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lldb::StateType GetState() override;
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bool GetStopReason(ThreadStopInfo &stop_info,
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std::string &description) override;
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NativeRegisterContextLinux &GetRegisterContext() override {
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return *m_reg_context_up;
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}
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Status SetWatchpoint(lldb::addr_t addr, size_t size, uint32_t watch_flags,
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bool hardware) override;
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Status RemoveWatchpoint(lldb::addr_t addr) override;
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Status SetHardwareBreakpoint(lldb::addr_t addr, size_t size) override;
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Status RemoveHardwareBreakpoint(lldb::addr_t addr) override;
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private:
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// ---------------------------------------------------------------------
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// Interface for friend classes
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// ---------------------------------------------------------------------
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/// Resumes the thread. If @p signo is anything but
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/// LLDB_INVALID_SIGNAL_NUMBER, deliver that signal to the thread.
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Status Resume(uint32_t signo);
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/// Single steps the thread. If @p signo is anything but
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/// LLDB_INVALID_SIGNAL_NUMBER, deliver that signal to the thread.
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Status SingleStep(uint32_t signo);
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void SetStoppedBySignal(uint32_t signo, const siginfo_t *info = nullptr);
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/// Return true if the thread is stopped.
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/// If stopped by a signal, indicate the signo in the signo argument.
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/// Otherwise, return LLDB_INVALID_SIGNAL_NUMBER.
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bool IsStopped(int *signo);
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void SetStoppedByExec();
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void SetStoppedByBreakpoint();
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void SetStoppedByWatchpoint(uint32_t wp_index);
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bool IsStoppedAtBreakpoint();
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bool IsStoppedAtWatchpoint();
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void SetStoppedByTrace();
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void SetStoppedWithNoReason();
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void SetExited();
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Status RequestStop();
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// ---------------------------------------------------------------------
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// Private interface
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// ---------------------------------------------------------------------
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void MaybeLogStateChange(lldb::StateType new_state);
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NativeProcessLinux &GetProcess();
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void SetStopped();
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// ---------------------------------------------------------------------
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// Member Variables
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// ---------------------------------------------------------------------
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lldb::StateType m_state;
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ThreadStopInfo m_stop_info;
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std::unique_ptr<NativeRegisterContextLinux> m_reg_context_up;
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std::string m_stop_description;
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using WatchpointIndexMap = std::map<lldb::addr_t, uint32_t>;
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WatchpointIndexMap m_watchpoint_index_map;
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WatchpointIndexMap m_hw_break_index_map;
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std::unique_ptr<SingleStepWorkaround> m_step_workaround;
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};
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} // namespace process_linux
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} // namespace lldb_private
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#endif // #ifndef liblldb_NativeThreadLinux_H_
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