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//===-- DebuggerThread.h ----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_Plugins_Process_Windows_DebuggerThread_H_
#define liblldb_Plugins_Process_Windows_DebuggerThread_H_
#include <atomic>
#include <memory>
#include "ForwardDecl.h"
#include "lldb/Host/HostProcess.h"
#include "lldb/Host/HostThread.h"
#include "lldb/Host/windows/windows.h"
#include "lldb/Utility/Predicate.h"
namespace lldb_private {
// DebuggerThread
//
// Debugs a single process, notifying listeners as appropriate when interesting
// things occur.
class DebuggerThread : public std::enable_shared_from_this<DebuggerThread> {
public:
DebuggerThread(DebugDelegateSP debug_delegate);
virtual ~DebuggerThread();
Status DebugLaunch(const ProcessLaunchInfo &launch_info);
Status DebugAttach(lldb::pid_t pid, const ProcessAttachInfo &attach_info);
HostProcess GetProcess() const { return m_process; }
HostThread GetMainThread() const { return m_main_thread; }
std::weak_ptr<ExceptionRecord> GetActiveException() {
return m_active_exception;
}
Status StopDebugging(bool terminate);
void ContinueAsyncException(ExceptionResult result);
private:
void FreeProcessHandles();
void DebugLoop();
ExceptionResult HandleExceptionEvent(const EXCEPTION_DEBUG_INFO &info,
DWORD thread_id);
DWORD HandleCreateThreadEvent(const CREATE_THREAD_DEBUG_INFO &info,
DWORD thread_id);
DWORD HandleCreateProcessEvent(const CREATE_PROCESS_DEBUG_INFO &info,
DWORD thread_id);
DWORD HandleExitThreadEvent(const EXIT_THREAD_DEBUG_INFO &info,
DWORD thread_id);
DWORD HandleExitProcessEvent(const EXIT_PROCESS_DEBUG_INFO &info,
DWORD thread_id);
DWORD HandleLoadDllEvent(const LOAD_DLL_DEBUG_INFO &info, DWORD thread_id);
DWORD HandleUnloadDllEvent(const UNLOAD_DLL_DEBUG_INFO &info,
DWORD thread_id);
DWORD HandleODSEvent(const OUTPUT_DEBUG_STRING_INFO &info, DWORD thread_id);
DWORD HandleRipEvent(const RIP_INFO &info, DWORD thread_id);
DebugDelegateSP m_debug_delegate;
HostProcess m_process; // The process being debugged.
HostThread m_main_thread; // The main thread of the inferior.
// The image file of the process being debugged.
HANDLE m_image_file = nullptr;
// The current exception waiting to be handled
ExceptionRecordSP m_active_exception;
// A predicate which gets signalled when an exception is finished processing
// and the debug loop can be continued.
Predicate<ExceptionResult> m_exception_pred;
// An event which gets signalled by the debugger thread when it exits the
// debugger loop and is detached from the inferior.
HANDLE m_debugging_ended_event = nullptr;
// Signals the loop to detach from the process (specified by pid).
std::atomic<DWORD> m_pid_to_detach;
// Signals the debug loop to stop processing certain types of events that
// block shutdown.
std::atomic<bool> m_is_shutting_down;
// Indicates we've detached from the inferior process and the debug loop can
// exit.
bool m_detached = false;
static lldb::thread_result_t DebuggerThreadLaunchRoutine(void *data);
lldb::thread_result_t
DebuggerThreadLaunchRoutine(const ProcessLaunchInfo &launch_info);
static lldb::thread_result_t DebuggerThreadAttachRoutine(void *data);
lldb::thread_result_t
DebuggerThreadAttachRoutine(lldb::pid_t pid,
const ProcessAttachInfo &launch_info);
};
}
#endif
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