Refactor LLDB's Windows process plugin (NFC)

[amccarth]

Summary

The Windows process plugin was broken up into multiple pieces a while back in order to share code between debugging live processes and minidumps (postmortem) debugging. The minidump portion was replaced by a cross-platform solution. This left the plugin split into a formerly "common" base classes and the derived classes for live debugging. This extra layer made the code harder to understand and work with.

This patch simplifies these class hierarchies by rolling the live debugging concrete classes up to the base classes. Last week I posted my intent to make this change to lldb-dev, and I didn't hear any objections.

This involved moving code and changing references to classes like ProcessWindowsLive to ProcessWindows. It still builds for both 32- and 64-bit, and the tests still pass on 32-bit. (Tests on 64-bit weren't passing before this refactor for unrelated reasons.) I don't expect a thorough review; I'm posting this as a sanity check.

A subsequent patch will eliminate the unnecessary "Common" subdirectory.

[labath]

seems reasonable.

[amccarth]

Committed in r287770.

cmake/LLDBDependencies.cmake

set( LLDB_USED_LIBS
   lldbPluginDisassemblerLLVM
   lldbPluginSymbolFileDWARF
   lldbPluginSymbolFilePDB
   lldbPluginSymbolFileSymtab
   lldbPluginDynamicLoaderStatic
   lldbPluginDynamicLoaderPosixDYLD
   lldbPluginDynamicLoaderHexagonDYLD
   lldbPluginDynamicLoaderWindowsDYLD
-  
   lldbPluginCPlusPlusLanguage
   lldbPluginGoLanguage
   lldbPluginJavaLanguage
   lldbPluginObjCLanguage
   lldbPluginObjCPlusPlusLanguage
   lldbPluginOCamlLanguage
 
   lldbPluginObjectFileELF
set( LLDB_USED_LIBS
   lldbPluginJITLoaderGDB
   lldbPluginExpressionParserClang
   lldbPluginExpressionParserGo
   )
 
 # Windows-only libraries
 if ( CMAKE_SYSTEM_NAME MATCHES "Windows" )
   list(APPEND LLDB_USED_LIBS
-    lldbPluginProcessWindows
-    lldbPluginProcessWinMiniDump
     lldbPluginProcessWindowsCommon
     Ws2_32
     Rpcrt4
     )
 endif ()
 
 # Linux-only libraries
 if ( CMAKE_SYSTEM_NAME MATCHES "Linux" )

source/API/SystemInitializerFull.cpp

 #endif
 #include "Plugins/StructuredData/DarwinLog/StructuredDataDarwinLog.h"
 
 #if defined(__FreeBSD__)
 #include "Plugins/Process/FreeBSD/ProcessFreeBSD.h"
 #endif
 
 #if defined(_MSC_VER)
-#include "Plugins/Process/Windows/Live/ProcessWindowsLive.h"
+#include "Plugins/Process/Windows/Common/ProcessWindows.h"
 #include "lldb/Host/windows/windows.h"
 #endif
 
 #include "llvm/Support/TargetSelect.h"
 
 #include <string>
 
 using namespace lldb_private;
#endif
   CPlusPlusLanguage::Initialize();
   GoLanguage::Initialize();
   JavaLanguage::Initialize();
   ObjCLanguage::Initialize();
   ObjCPlusPlusLanguage::Initialize();
   OCamlLanguage::Initialize();
 
 #if defined(_MSC_VER)
-  ProcessWindowsLive::Initialize();
+  ProcessWindows::Initialize();
 #endif
 #if defined(__FreeBSD__)
   ProcessFreeBSD::Initialize();
 #endif
 #if defined(__APPLE__)
   SymbolVendorMacOSX::Initialize();
   ProcessKDP::Initialize();
   ProcessMachCore::Initialize();

source/Plugins/Process/CMakeLists.txt

 if (CMAKE_SYSTEM_NAME MATCHES "Linux")
   add_subdirectory(Linux)
   add_subdirectory(POSIX)
 elseif (CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
   add_subdirectory(FreeBSD)
   add_subdirectory(POSIX)
 elseif (CMAKE_SYSTEM_NAME MATCHES "NetBSD")
   add_subdirectory(POSIX)
 elseif (CMAKE_SYSTEM_NAME MATCHES "Windows")
-  add_subdirectory(Windows/Live)
-  add_subdirectory(Windows/MiniDump)
   add_subdirectory(Windows/Common)
 elseif (CMAKE_SYSTEM_NAME MATCHES "Darwin")
   add_subdirectory(MacOSX-Kernel)
 endif()
 add_subdirectory(gdb-remote)
 add_subdirectory(Utility)
 add_subdirectory(mach-core)
 add_subdirectory(elf-core)
 add_subdirectory(minidump)

source/Plugins/Process/Windows/Common/CMakeLists.txt

 include_directories(.)
 include_directories(../../Utility)
 
 set(PROC_WINDOWS_COMMON_SOURCES
-  RegisterContextWindows.cpp
+  DebuggerThread.cpp
+  LocalDebugDelegate.cpp
   ProcessWindows.cpp
   ProcessWindowsLog.cpp
+  RegisterContextWindows.cpp
   TargetThreadWindows.cpp
   )
 
 if (CMAKE_SIZEOF_VOID_P EQUAL 4)
   set(PROC_WINDOWS_COMMON_SOURCES ${PROC_WINDOWS_COMMON_SOURCES}
     x86/RegisterContextWindows_x86.cpp
     )
 elseif (CMAKE_SIZEOF_VOID_P EQUAL 8)
   set(PROC_WINDOWS_COMMON_SOURCES ${PROC_WINDOWS_COMMON_SOURCES}
     x64/RegisterContextWindows_x64.cpp
     )
 endif()
 
 add_lldb_library(lldbPluginProcessWindowsCommon
   ${PROC_WINDOWS_COMMON_SOURCES}
   )

source/Plugins/Process/Windows/Common/DebuggerThread.h

+//===-- DebuggerThread.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#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/Predicate.h"
+#include "lldb/Host/windows/windows.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();
+
+  Error DebugLaunch(const ProcessLaunchInfo &launch_info);
+  Error 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;
+  }
+
+  Error 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

source/Plugins/Process/Windows/Common/DebuggerThread.cpp

+//===-- DebuggerThread.DebuggerThread --------------------------------------*-
+// C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "DebuggerThread.h"
+#include "ExceptionRecord.h"
+#include "IDebugDelegate.h"
+
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/ModuleSpec.h"
+#include "lldb/Host/FileSpec.h"
+#include "lldb/Host/Predicate.h"
+#include "lldb/Host/ThisThread.h"
+#include "lldb/Host/ThreadLauncher.h"
+#include "lldb/Host/windows/HostProcessWindows.h"
+#include "lldb/Host/windows/HostThreadWindows.h"
+#include "lldb/Host/windows/ProcessLauncherWindows.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/ProcessLaunchInfo.h"
+
+#include "Plugins/Process/Windows/Common/ProcessWindowsLog.h"
+
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/Support/ConvertUTF.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+namespace {
+struct DebugLaunchContext {
+  DebugLaunchContext(DebuggerThread *thread,
+                     const ProcessLaunchInfo &launch_info)
+      : m_thread(thread), m_launch_info(launch_info) {}
+  DebuggerThread *m_thread;
+  ProcessLaunchInfo m_launch_info;
+};
+
+struct DebugAttachContext {
+  DebugAttachContext(DebuggerThread *thread, lldb::pid_t pid,
+                     const ProcessAttachInfo &attach_info)
+      : m_thread(thread), m_pid(pid), m_attach_info(attach_info) {}
+  DebuggerThread *m_thread;
+  lldb::pid_t m_pid;
+  ProcessAttachInfo m_attach_info;
+};
+}
+
+DebuggerThread::DebuggerThread(DebugDelegateSP debug_delegate)
+    : m_debug_delegate(debug_delegate), m_pid_to_detach(0),
+      m_is_shutting_down(false) {
+  m_debugging_ended_event = ::CreateEvent(nullptr, TRUE, FALSE, nullptr);
+}
+
+DebuggerThread::~DebuggerThread() { ::CloseHandle(m_debugging_ended_event); }
+
+Error DebuggerThread::DebugLaunch(const ProcessLaunchInfo &launch_info) {
+  WINLOG_IFALL(WINDOWS_LOG_PROCESS,
+               "DebuggerThread::DebugLaunch launching '%s'",
+               launch_info.GetExecutableFile().GetPath().c_str());
+
+  Error error;
+  DebugLaunchContext *context = new DebugLaunchContext(this, launch_info);
+  HostThread slave_thread(ThreadLauncher::LaunchThread(
+      "lldb.plugin.process-windows.slave[?]", DebuggerThreadLaunchRoutine,
+      context, &error));
+
+  if (!error.Success()) {
+    WINERR_IFALL(WINDOWS_LOG_PROCESS,
+                 "DebugLaunch couldn't launch debugger thread.  %s",
+                 error.AsCString());
+  }
+
+  return error;
+}
+
+Error DebuggerThread::DebugAttach(lldb::pid_t pid,
+                                  const ProcessAttachInfo &attach_info) {
+  WINLOG_IFALL(WINDOWS_LOG_PROCESS,
+               "DebuggerThread::DebugAttach attaching to '%llu'", pid);
+
+  Error error;
+  DebugAttachContext *context = new DebugAttachContext(this, pid, attach_info);
+  HostThread slave_thread(ThreadLauncher::LaunchThread(
+      "lldb.plugin.process-windows.slave[?]", DebuggerThreadAttachRoutine,
+      context, &error));
+
+  if (!error.Success()) {
+    WINERR_IFALL(WINDOWS_LOG_PROCESS,
+                 "DebugAttach couldn't attach to process '%llu'.  %s", pid,
+                 error.AsCString());
+  }
+
+  return error;
+}
+
+lldb::thread_result_t DebuggerThread::DebuggerThreadLaunchRoutine(void *data) {
+  DebugLaunchContext *context = static_cast<DebugLaunchContext *>(data);
+  lldb::thread_result_t result =
+      context->m_thread->DebuggerThreadLaunchRoutine(context->m_launch_info);
+  delete context;
+  return result;
+}
+
+lldb::thread_result_t DebuggerThread::DebuggerThreadAttachRoutine(void *data) {
+  DebugAttachContext *context = static_cast<DebugAttachContext *>(data);
+  lldb::thread_result_t result = context->m_thread->DebuggerThreadAttachRoutine(
+      context->m_pid, context->m_attach_info);
+  delete context;
+  return result;
+}
+
+lldb::thread_result_t DebuggerThread::DebuggerThreadLaunchRoutine(
+    const ProcessLaunchInfo &launch_info) {
+  // Grab a shared_ptr reference to this so that we know it won't get deleted
+  // until after the
+  // thread routine has exited.
+  std::shared_ptr<DebuggerThread> this_ref(shared_from_this());
+
+  WINLOG_IFALL(WINDOWS_LOG_PROCESS,
+               "DebuggerThread preparing to launch '%s' on background thread.",
+               launch_info.GetExecutableFile().GetPath().c_str());
+
+  Error error;
+  ProcessLauncherWindows launcher;
+  HostProcess process(launcher.LaunchProcess(launch_info, error));
+  // If we couldn't create the process, notify waiters immediately.  Otherwise
+  // enter the debug
+  // loop and wait until we get the create process debug notification.  Note
+  // that if the process
+  // was created successfully, we can throw away the process handle we got from
+  // CreateProcess
+  // because Windows will give us another (potentially more useful?) handle when
+  // it sends us the
+  // CREATE_PROCESS_DEBUG_EVENT.
+  if (error.Success())
+    DebugLoop();
+  else
+    m_debug_delegate->OnDebuggerError(error, 0);
+
+  return 0;
+}
+
+lldb::thread_result_t DebuggerThread::DebuggerThreadAttachRoutine(
+    lldb::pid_t pid, const ProcessAttachInfo &attach_info) {
+  // Grab a shared_ptr reference to this so that we know it won't get deleted
+  // until after the
+  // thread routine has exited.
+  std::shared_ptr<DebuggerThread> this_ref(shared_from_this());
+
+  WINLOG_IFALL(WINDOWS_LOG_PROCESS, "DebuggerThread preparing to attach to "
+                                    "process '%llu' on background thread.",
+               pid);
+
+  if (!DebugActiveProcess((DWORD)pid)) {
+    Error error(::GetLastError(), eErrorTypeWin32);
+    m_debug_delegate->OnDebuggerError(error, 0);
+    return 0;
+  }
+
+  // The attach was successful, enter the debug loop.  From here on out, this is
+  // no different than
+  // a create process operation, so all the same comments in DebugLaunch should
+  // apply from this
+  // point out.
+  DebugLoop();
+
+  return 0;
+}
+
+Error DebuggerThread::StopDebugging(bool terminate) {
+  Error error;
+
+  lldb::pid_t pid = m_process.GetProcessId();
+
+  WINLOG_IFALL(WINDOWS_LOG_PROCESS,
+               "StopDebugging('%s') called (inferior=%I64u).",
+               (terminate ? "true" : "false"), pid);
+
+  // Set m_is_shutting_down to true if it was false.  Return if it was already
+  // true.
+  bool expected = false;
+  if (!m_is_shutting_down.compare_exchange_strong(expected, true))
+    return error;
+
+  // Make a copy of the process, since the termination sequence will reset
+  // DebuggerThread's internal copy and it needs to remain open for the Wait
+  // operation.
+  HostProcess process_copy = m_process;
+  lldb::process_t handle = m_process.GetNativeProcess().GetSystemHandle();
+
+  if (terminate) {
+    // Initiate the termination before continuing the exception, so that the
+    // next debug
+    // event we get is the exit process event, and not some other event.
+    BOOL terminate_suceeded = TerminateProcess(handle, 0);
+    WINLOG_IFALL(WINDOWS_LOG_PROCESS, "StopDebugging called "
+                                      "TerminateProcess(0x%p, 0) "
+                                      "(inferior=%I64u), success='%s'",
+                 handle, pid, (terminate_suceeded ? "true" : "false"));
+  }
+
+  // If we're stuck waiting for an exception to continue (e.g. the user is at a
+  // breakpoint
+  // messing around in the debugger), continue it now.  But only AFTER calling
+  // TerminateProcess
+  // to make sure that the very next call to WaitForDebugEvent is an exit
+  // process event.
+  if (m_active_exception.get()) {
+    WINLOG_IFANY(WINDOWS_LOG_PROCESS | WINDOWS_LOG_EXCEPTION,
+                 "StopDebugging masking active exception");
+
+    ContinueAsyncException(ExceptionResult::MaskException);
+  }
+
+  if (!terminate) {
+    // Indicate that we want to detach.
+    m_pid_to_detach = GetProcess().GetProcessId();
+
+    // Force a fresh break so that the detach can happen from the debugger
+    // thread.
+    if (!::DebugBreakProcess(
+            GetProcess().GetNativeProcess().GetSystemHandle())) {
+      error.SetError(::GetLastError(), eErrorTypeWin32);
+    }
+  }
+
+  WINLOG_IFALL(
+      WINDOWS_LOG_PROCESS,
+      "StopDebugging waiting for detach from process %llu to complete.", pid);
+
+  DWORD wait_result = WaitForSingleObject(m_debugging_ended_event, 5000);
+  if (wait_result != WAIT_OBJECT_0) {
+    error.SetError(GetLastError(), eErrorTypeWin32);
+    WINERR_IFALL(WINDOWS_LOG_PROCESS,
+                 "StopDebugging WaitForSingleObject(0x%p, 5000) returned %lu",
+                 m_debugging_ended_event, wait_result);
+  } else {
+    WINLOG_IFALL(
+        WINDOWS_LOG_PROCESS,
+        "StopDebugging detach from process %llu completed successfully.", pid);
+  }
+
+  if (!error.Success()) {
+    WINERR_IFALL(WINDOWS_LOG_PROCESS, "StopDebugging encountered an error "
+                                      "while trying to stop process %llu.  %s",
+                 pid, error.AsCString());
+  }
+  return error;
+}
+
+void DebuggerThread::ContinueAsyncException(ExceptionResult result) {
+  if (!m_active_exception.get())
+    return;
+
+  WINLOG_IFANY(
+      WINDOWS_LOG_PROCESS | WINDOWS_LOG_EXCEPTION,
+      "ContinueAsyncException called for inferior process %I64u, broadcasting.",
+      m_process.GetProcessId());
+
+  m_active_exception.reset();
+  m_exception_pred.SetValue(result, eBroadcastAlways);
+}
+
+void DebuggerThread::FreeProcessHandles() {
+  m_process = HostProcess();
+  m_main_thread = HostThread();
+  if (m_image_file) {
+    ::CloseHandle(m_image_file);
+    m_image_file = nullptr;
+  }
+}
+
+void DebuggerThread::DebugLoop() {
+  DEBUG_EVENT dbe = {};
+  bool should_debug = true;
+  WINLOG_IFALL(WINDOWS_LOG_EVENT, "Entering WaitForDebugEvent loop");
+  while (should_debug) {
+    WINLOGD_IFALL(WINDOWS_LOG_EVENT, "Calling WaitForDebugEvent");
+    BOOL wait_result = WaitForDebugEvent(&dbe, INFINITE);
+    if (wait_result) {
+      DWORD continue_status = DBG_CONTINUE;
+      switch (dbe.dwDebugEventCode) {
+      case EXCEPTION_DEBUG_EVENT: {
+        ExceptionResult status =
+            HandleExceptionEvent(dbe.u.Exception, dbe.dwThreadId);
+
+        if (status == ExceptionResult::MaskException)
+          continue_status = DBG_CONTINUE;
+        else if (status == ExceptionResult::SendToApplication)
+          continue_status = DBG_EXCEPTION_NOT_HANDLED;
+
+        break;
+      }
+      case CREATE_THREAD_DEBUG_EVENT:
+        continue_status =
+            HandleCreateThreadEvent(dbe.u.CreateThread, dbe.dwThreadId);
+        break;
+      case CREATE_PROCESS_DEBUG_EVENT:
+        continue_status =
+            HandleCreateProcessEvent(dbe.u.CreateProcessInfo, dbe.dwThreadId);
+        break;
+      case EXIT_THREAD_DEBUG_EVENT:
+        continue_status =
+            HandleExitThreadEvent(dbe.u.ExitThread, dbe.dwThreadId);
+        break;
+      case EXIT_PROCESS_DEBUG_EVENT:
+        continue_status =
+            HandleExitProcessEvent(dbe.u.ExitProcess, dbe.dwThreadId);
+        should_debug = false;
+        break;
+      case LOAD_DLL_DEBUG_EVENT:
+        continue_status = HandleLoadDllEvent(dbe.u.LoadDll, dbe.dwThreadId);
+        break;
+      case UNLOAD_DLL_DEBUG_EVENT:
+        continue_status = HandleUnloadDllEvent(dbe.u.UnloadDll, dbe.dwThreadId);
+        break;
+      case OUTPUT_DEBUG_STRING_EVENT:
+        continue_status = HandleODSEvent(dbe.u.DebugString, dbe.dwThreadId);
+        break;
+      case RIP_EVENT:
+        continue_status = HandleRipEvent(dbe.u.RipInfo, dbe.dwThreadId);
+        if (dbe.u.RipInfo.dwType == SLE_ERROR)
+          should_debug = false;
+        break;
+      }
+
+      WINLOGD_IFALL(
+          WINDOWS_LOG_EVENT,
+          "DebugLoop calling ContinueDebugEvent(%lu, %lu, %lu) on thread %lu.",
+          dbe.dwProcessId, dbe.dwThreadId, continue_status,
+          ::GetCurrentThreadId());
+
+      ::ContinueDebugEvent(dbe.dwProcessId, dbe.dwThreadId, continue_status);
+
+      if (m_detached) {
+        should_debug = false;
+      }
+    } else {
+      WINERR_IFALL(
+          WINDOWS_LOG_EVENT,
+          "DebugLoop returned FALSE from WaitForDebugEvent.  Error = %lu",
+          ::GetLastError());
+
+      should_debug = false;
+    }
+  }
+  FreeProcessHandles();
+
+  WINLOG_IFALL(WINDOWS_LOG_EVENT, "WaitForDebugEvent loop completed, exiting.");
+  SetEvent(m_debugging_ended_event);
+}
+
+ExceptionResult
+DebuggerThread::HandleExceptionEvent(const EXCEPTION_DEBUG_INFO &info,
+                                     DWORD thread_id) {
+  if (m_is_shutting_down) {
+    // A breakpoint that occurs while `m_pid_to_detach` is non-zero is a magic
+    // exception that
+    // we use simply to wake up the DebuggerThread so that we can close out the
+    // debug loop.
+    if (m_pid_to_detach != 0 &&
+        info.ExceptionRecord.ExceptionCode == EXCEPTION_BREAKPOINT) {
+      WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_EXCEPTION |
+                       WINDOWS_LOG_PROCESS,
+                   "Breakpoint exception is cue to detach from process 0x%lx",
+                   m_pid_to_detach.load());
+      ::DebugActiveProcessStop(m_pid_to_detach);
+      m_detached = true;
+    }
+
+    // Don't perform any blocking operations while we're shutting down.  That
+    // will
+    // cause TerminateProcess -> WaitForSingleObject to time out.
+    return ExceptionResult::SendToApplication;
+  }
+
+  bool first_chance = (info.dwFirstChance != 0);
+
+  m_active_exception.reset(
+      new ExceptionRecord(info.ExceptionRecord, thread_id));
+  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_EXCEPTION,
+               "HandleExceptionEvent encountered %s chance exception 0x%lx on "
+               "thread 0x%lx",
+               first_chance ? "first" : "second",
+               info.ExceptionRecord.ExceptionCode, thread_id);
+
+  ExceptionResult result =
+      m_debug_delegate->OnDebugException(first_chance, *m_active_exception);
+  m_exception_pred.SetValue(result, eBroadcastNever);
+
+  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_EXCEPTION,
+               "DebuggerThread::HandleExceptionEvent waiting for ExceptionPred "
+               "!= BreakInDebugger");
+
+  m_exception_pred.WaitForValueNotEqualTo(ExceptionResult::BreakInDebugger,
+                                          result);
+
+  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_EXCEPTION,
+               "DebuggerThread::HandleExceptionEvent got ExceptionPred = %u",
+               m_exception_pred.GetValue());
+
+  return result;
+}
+
+DWORD
+DebuggerThread::HandleCreateThreadEvent(const CREATE_THREAD_DEBUG_INFO &info,
+                                        DWORD thread_id) {
+  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_THREAD,
+               "HandleCreateThreadEvent Thread 0x%lx spawned in process %llu",
+               thread_id, m_process.GetProcessId());
+  HostThread thread(info.hThread);
+  thread.GetNativeThread().SetOwnsHandle(false);
+  m_debug_delegate->OnCreateThread(thread);
+  return DBG_CONTINUE;
+}
+
+DWORD
+DebuggerThread::HandleCreateProcessEvent(const CREATE_PROCESS_DEBUG_INFO &info,
+                                         DWORD thread_id) {
+  uint32_t process_id = ::GetProcessId(info.hProcess);
+
+  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_PROCESS,
+               "HandleCreateProcessEvent process %u spawned", process_id);
+
+  std::string thread_name;
+  llvm::raw_string_ostream name_stream(thread_name);
+  name_stream << "lldb.plugin.process-windows.slave[" << process_id << "]";
+  name_stream.flush();
+  ThisThread::SetName(thread_name.c_str());
+
+  // info.hProcess and info.hThread are closed automatically by Windows when
+  // EXIT_PROCESS_DEBUG_EVENT is received.
+  m_process = HostProcess(info.hProcess);
+  ((HostProcessWindows &)m_process.GetNativeProcess()).SetOwnsHandle(false);
+  m_main_thread = HostThread(info.hThread);
+  m_main_thread.GetNativeThread().SetOwnsHandle(false);
+  m_image_file = info.hFile;
+
+  lldb::addr_t load_addr = reinterpret_cast<lldb::addr_t>(info.lpBaseOfImage);
+  m_debug_delegate->OnDebuggerConnected(load_addr);
+
+  return DBG_CONTINUE;
+}
+
+DWORD
+DebuggerThread::HandleExitThreadEvent(const EXIT_THREAD_DEBUG_INFO &info,
+                                      DWORD thread_id) {
+  WINLOG_IFANY(
+      WINDOWS_LOG_EVENT | WINDOWS_LOG_THREAD,
+      "HandleExitThreadEvent Thread %lu exited with code %lu in process %llu",
+      thread_id, info.dwExitCode, m_process.GetProcessId());
+  m_debug_delegate->OnExitThread(thread_id, info.dwExitCode);
+  return DBG_CONTINUE;
+}
+
+DWORD
+DebuggerThread::HandleExitProcessEvent(const EXIT_PROCESS_DEBUG_INFO &info,
+                                       DWORD thread_id) {
+  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_THREAD,
+               "HandleExitProcessEvent process %llu exited with code %lu",
+               m_process.GetProcessId(), info.dwExitCode);
+
+  m_debug_delegate->OnExitProcess(info.dwExitCode);
+
+  FreeProcessHandles();
+  return DBG_CONTINUE;
+}
+
+DWORD
+DebuggerThread::HandleLoadDllEvent(const LOAD_DLL_DEBUG_INFO &info,
+                                   DWORD thread_id) {
+  if (info.hFile == nullptr) {
+    // Not sure what this is, so just ignore it.
+    WINWARN_IFALL(WINDOWS_LOG_EVENT, "Inferior %llu - HandleLoadDllEvent has "
+                                     "a NULL file handle, returning...",
+                  m_process.GetProcessId());
+    return DBG_CONTINUE;
+  }
+
+  std::vector<wchar_t> buffer(1);
+  DWORD required_size =
+      GetFinalPathNameByHandleW(info.hFile, &buffer[0], 0, VOLUME_NAME_DOS);
+  if (required_size > 0) {
+    buffer.resize(required_size + 1);
+    required_size = GetFinalPathNameByHandleW(info.hFile, &buffer[0],
+                                              required_size, VOLUME_NAME_DOS);
+    std::string path_str_utf8;
+    llvm::convertWideToUTF8(buffer.data(), path_str_utf8);
+    llvm::StringRef path_str = path_str_utf8;
+    const char *path = path_str.data();
+    if (path_str.startswith("\\\\?\\"))
+      path += 4;
+
+    FileSpec file_spec(path, false);
+    ModuleSpec module_spec(file_spec);
+    lldb::addr_t load_addr = reinterpret_cast<lldb::addr_t>(info.lpBaseOfDll);
+
+    WINLOG_IFALL(WINDOWS_LOG_EVENT, "Inferior %I64u - HandleLoadDllEvent DLL "
+                                    "'%s' loaded at address 0x%p...",
+                 m_process.GetProcessId(), path, info.lpBaseOfDll);
+
+    m_debug_delegate->OnLoadDll(module_spec, load_addr);
+  } else {
+    WINERR_IFALL(WINDOWS_LOG_EVENT, "Inferior %llu - HandleLoadDllEvent Error "
+                                    "%lu occurred calling "
+                                    "GetFinalPathNameByHandle",
+                 m_process.GetProcessId(), ::GetLastError());
+  }
+  // Windows does not automatically close info.hFile, so we need to do it.
+  ::CloseHandle(info.hFile);
+  return DBG_CONTINUE;
+}
+
+DWORD
+DebuggerThread::HandleUnloadDllEvent(const UNLOAD_DLL_DEBUG_INFO &info,
+                                     DWORD thread_id) {
+  WINLOG_IFALL(WINDOWS_LOG_EVENT,
+               "HandleUnloadDllEvent process %llu unloading DLL at addr 0x%p.",
+               m_process.GetProcessId(), info.lpBaseOfDll);
+
+  m_debug_delegate->OnUnloadDll(
+      reinterpret_cast<lldb::addr_t>(info.lpBaseOfDll));
+  return DBG_CONTINUE;
+}
+
+DWORD
+DebuggerThread::HandleODSEvent(const OUTPUT_DEBUG_STRING_INFO &info,
+                               DWORD thread_id) {
+  return DBG_CONTINUE;
+}
+
+DWORD
+DebuggerThread::HandleRipEvent(const RIP_INFO &info, DWORD thread_id) {
+  WINERR_IFALL(WINDOWS_LOG_EVENT, "HandleRipEvent encountered error %lu "
+                                  "(type=%lu) in process %llu thread %lu",
+               info.dwError, info.dwType, m_process.GetProcessId(), thread_id);
+
+  Error error(info.dwError, eErrorTypeWin32);
+  m_debug_delegate->OnDebuggerError(error, info.dwType);
+
+  return DBG_CONTINUE;
+}

source/Plugins/Process/Windows/Common/ForwardDecl.h

+//===-- ForwardDecl.h -------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_Plugins_Process_Windows_ForwardDecl_H_
+#define liblldb_Plugins_Process_Windows_ForwardDecl_H_
+
+#include <memory>
+
+// ExceptionResult is returned by the debug delegate to specify how it processed
+// the exception.
+enum class ExceptionResult {
+  BreakInDebugger,  // Break in the debugger and give the user a chance to
+                    // interact with
+                    // the program before continuing.
+  MaskException,    // Eat the exception and don't let the application know it
+                    // occurred.
+  SendToApplication // Send the exception to the application to be handled as if
+                    // there were
+                    // no debugger attached.
+};
+
+namespace lldb_private {
+
+class ProcessWindows;
+
+class IDebugDelegate;
+class DebuggerThread;
+class ExceptionRecord;
+
+typedef std::shared_ptr<IDebugDelegate> DebugDelegateSP;
+typedef std::shared_ptr<DebuggerThread> DebuggerThreadSP;
+typedef std::shared_ptr<ExceptionRecord> ExceptionRecordSP;
+typedef std::unique_ptr<ExceptionRecord> ExceptionRecordUP;
+}
+
+#endif
 No newline at end of file

source/Plugins/Process/Windows/Common/IDebugDelegate.h

+//===-- IDebugDelegate.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_Plugins_Process_Windows_IDebugDelegate_H_
+#define liblldb_Plugins_Process_Windows_IDebugDelegate_H_
+
+#include "ForwardDecl.h"
+#include "lldb/lldb-forward.h"
+#include "lldb/lldb-types.h"
+#include <string>
+
+namespace lldb_private {
+class Error;
+class HostThread;
+
+//----------------------------------------------------------------------
+// IDebugDelegate
+//
+// IDebugDelegate defines an interface which allows implementors to receive
+// notification of events that happen in a debugged process.
+//----------------------------------------------------------------------
+class IDebugDelegate {
+public:
+  virtual ~IDebugDelegate() {}
+
+  virtual void OnExitProcess(uint32_t exit_code) = 0;
+  virtual void OnDebuggerConnected(lldb::addr_t image_base) = 0;
+  virtual ExceptionResult OnDebugException(bool first_chance,
+                                           const ExceptionRecord &record) = 0;
+  virtual void OnCreateThread(const HostThread &thread) = 0;
+  virtual void OnExitThread(lldb::tid_t thread_id, uint32_t exit_code) = 0;
+  virtual void OnLoadDll(const ModuleSpec &module_spec,
+                         lldb::addr_t module_addr) = 0;
+  virtual void OnUnloadDll(lldb::addr_t module_addr) = 0;
+  virtual void OnDebugString(const std::string &string) = 0;
+  virtual void OnDebuggerError(const Error &error, uint32_t type) = 0;
+};
+}
+
+#endif

source/Plugins/Process/Windows/Common/LocalDebugDelegate.h

+//===-- LocalDebugDelegate.h ------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_Plugins_Process_Windows_LocalDebugDelegate_H_
+#define liblldb_Plugins_Process_Windows_LocalDebugDelegate_H_
+
+#include <memory>
+
+#include "IDebugDelegate.h"
+
+#include "lldb/lldb-forward.h"
+
+namespace lldb_private {
+
+class ProcessWindows;
+typedef std::shared_ptr<ProcessWindows> ProcessWindowsSP;
+
+//----------------------------------------------------------------------
+// LocalDebugDelegate
+//
+// LocalDebugDelegate creates a connection between a ProcessWindows and the
+// debug driver.  This serves to decouple ProcessWindows from the debug
+// driver.  It would be possible to get a similar decoupling by just having
+// ProcessWindows implement this interface directly.  There are two reasons
+// why we don't do this:
+//
+// 1) In the future when we add support for local debugging through LLGS, and we
+//    go through the Native*Protocol interface, it is likely we will need the
+//    additional flexibility provided by this sort of adapter pattern.
+// 2) LLDB holds a shared_ptr to the ProcessWindows, and our driver thread
+//    needs access to it as well.  To avoid a race condition, we want to make
+//    sure that we're also holding onto a shared_ptr.
+//    lldb_private::Process supports enable_shared_from_this, but that gives us
+//    a ProcessSP (which is exactly what we are trying to decouple from the
+//    driver), so this adapter serves as a way to transparently hold the
+//    ProcessSP while still keeping it decoupled from the driver.
+//----------------------------------------------------------------------
+class LocalDebugDelegate : public IDebugDelegate {
+public:
+  explicit LocalDebugDelegate(lldb::ProcessWP process);
+
+  void OnExitProcess(uint32_t exit_code) override;
+  void OnDebuggerConnected(lldb::addr_t image_base) override;
+  ExceptionResult OnDebugException(bool first_chance,
+                                   const ExceptionRecord &record) override;
+  void OnCreateThread(const HostThread &thread) override;
+  void OnExitThread(lldb::tid_t thread_id, uint32_t exit_code) override;
+  void OnLoadDll(const lldb_private::ModuleSpec &module_spec,
+                 lldb::addr_t module_addr) override;
+  void OnUnloadDll(lldb::addr_t module_addr) override;
+  void OnDebugString(const std::string &message) override;
+  void OnDebuggerError(const Error &error, uint32_t type) override;
+
+private:
+  ProcessWindowsSP GetProcessPointer();
+
+  lldb::ProcessWP m_process;
+};
+}
+
+#endif

source/Plugins/Process/Windows/Common/LocalDebugDelegate.cpp

+//===-- LocalDebugDelegate.cpp ----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "LocalDebugDelegate.h"
+#include "ProcessWindows.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+LocalDebugDelegate::LocalDebugDelegate(ProcessWP process)
+    : m_process(process) {}
+
+void LocalDebugDelegate::OnExitProcess(uint32_t exit_code) {
+  if (ProcessWindowsSP process = GetProcessPointer())
+    process->OnExitProcess(exit_code);
+}
+
+void LocalDebugDelegate::OnDebuggerConnected(lldb::addr_t image_base) {
+  if (ProcessWindowsSP process = GetProcessPointer())
+    process->OnDebuggerConnected(image_base);
+}
+
+ExceptionResult
+LocalDebugDelegate::OnDebugException(bool first_chance,
+                                     const ExceptionRecord &record) {
+  if (ProcessWindowsSP process = GetProcessPointer())
+    return process->OnDebugException(first_chance, record);
+  else
+    return ExceptionResult::MaskException;
+}
+
+void LocalDebugDelegate::OnCreateThread(const HostThread &thread) {
+  if (ProcessWindowsSP process = GetProcessPointer())
+    process->OnCreateThread(thread);
+}
+
+void LocalDebugDelegate::OnExitThread(lldb::tid_t thread_id,
+                                      uint32_t exit_code) {
+  if (ProcessWindowsSP process = GetProcessPointer())
+    process->OnExitThread(thread_id, exit_code);
+}
+
+void LocalDebugDelegate::OnLoadDll(const lldb_private::ModuleSpec &module_spec,
+                                   lldb::addr_t module_addr) {
+  if (ProcessWindowsSP process = GetProcessPointer())
+    process->OnLoadDll(module_spec, module_addr);
+}
+
+void LocalDebugDelegate::OnUnloadDll(lldb::addr_t module_addr) {
+  if (ProcessWindowsSP process = GetProcessPointer())
+    process->OnUnloadDll(module_addr);
+}
+
+void LocalDebugDelegate::OnDebugString(const std::string &string) {
+  if (ProcessWindowsSP process = GetProcessPointer())
+    process->OnDebugString(string);
+}
+
+void LocalDebugDelegate::OnDebuggerError(const Error &error, uint32_t type) {
+  if (ProcessWindowsSP process = GetProcessPointer())
+    process->OnDebuggerError(error, type);
+}
+
+ProcessWindowsSP LocalDebugDelegate::GetProcessPointer() {
+  ProcessSP process = m_process.lock();
+  return std::static_pointer_cast<ProcessWindows>(process);
+}

source/Plugins/Process/Windows/Common/ProcessWindows.h

 #ifndef liblldb_Plugins_Process_Windows_Common_ProcessWindows_H_
 #define liblldb_Plugins_Process_Windows_Common_ProcessWindows_H_
 
 // Other libraries and framework includes
 #include "lldb/Core/Error.h"
 #include "lldb/Target/Process.h"
 #include "lldb/lldb-forward.h"
 
+#include "llvm/Support/Mutex.h"
+
+#include "IDebugDelegate.h"
+
 namespace lldb_private {
 
-class ProcessWindows : public lldb_private::Process {
+class HostProcess;
+class ProcessWindowsData;
+
+class ProcessWindows : public Process, public IDebugDelegate {
 public:
   //------------------------------------------------------------------
+  // Static functions.
+  //------------------------------------------------------------------
+  static lldb::ProcessSP CreateInstance(lldb::TargetSP target_sp,
+                                        lldb::ListenerSP listener_sp,
+                                        const FileSpec *);
+
+  static void Initialize();
+
+  static void Terminate();
+
+  static lldb_private::ConstString GetPluginNameStatic();
+
+  static const char *GetPluginDescriptionStatic();
+
+  //------------------------------------------------------------------
   // Constructors and destructors
   //------------------------------------------------------------------
   ProcessWindows(lldb::TargetSP target_sp, lldb::ListenerSP listener_sp);
 
   ~ProcessWindows();
 
-  size_t GetSTDOUT(char *buf, size_t buf_size,
-                   lldb_private::Error &error) override;
-  size_t GetSTDERR(char *buf, size_t buf_size,
-                   lldb_private::Error &error) override;
-  size_t PutSTDIN(const char *buf, size_t buf_size,
-                  lldb_private::Error &error) override;
+  size_t GetSTDOUT(char *buf, size_t buf_size, Error &error) override;
+  size_t GetSTDERR(char *buf, size_t buf_size, Error &error) override;
+  size_t PutSTDIN(const char *buf, size_t buf_size, Error &error) override;
+
+  // lldb_private::Process overrides
+  ConstString GetPluginName() override;
+  uint32_t GetPluginVersion() override;
+
+  Error EnableBreakpointSite(BreakpointSite *bp_site) override;
+  Error DisableBreakpointSite(BreakpointSite *bp_site) override;
+
+  Error DoDetach(bool keep_stopped) override;
+  Error DoLaunch(Module *exe_module, ProcessLaunchInfo &launch_info) override;
+  Error DoAttachToProcessWithID(
+      lldb::pid_t pid,
+      const lldb_private::ProcessAttachInfo &attach_info) override;
+  Error DoResume() override;
+  Error DoDestroy() override;
+  Error DoHalt(bool &caused_stop) override;
+
+  void DidLaunch() override;
+  void DidAttach(lldb_private::ArchSpec &arch_spec) override;
+
+  void RefreshStateAfterStop() override;
+
+  bool CanDebug(lldb::TargetSP target_sp,
+                bool plugin_specified_by_name) override;
+  bool DestroyRequiresHalt() override { return false; }
+  bool UpdateThreadList(ThreadList &old_thread_list,
+                        ThreadList &new_thread_list) override;
+  bool IsAlive() override;
+
+  size_t DoReadMemory(lldb::addr_t vm_addr, void *buf, size_t size,
+                      Error &error) override;
+  size_t DoWriteMemory(lldb::addr_t vm_addr, const void *buf, size_t size,
+                       Error &error) override;
+  Error GetMemoryRegionInfo(lldb::addr_t vm_addr,
+                            MemoryRegionInfo &info) override;
 
   lldb::addr_t GetImageInfoAddress() override;
 
-protected:
+  // IDebugDelegate overrides.
+  void OnExitProcess(uint32_t exit_code) override;
+  void OnDebuggerConnected(lldb::addr_t image_base) override;
+  ExceptionResult OnDebugException(bool first_chance,
+                                   const ExceptionRecord &record) override;
+  void OnCreateThread(const HostThread &thread) override;
+  void OnExitThread(lldb::tid_t thread_id, uint32_t exit_code) override;
+  void OnLoadDll(const ModuleSpec &module_spec,
+                 lldb::addr_t module_addr) override;
+  void OnUnloadDll(lldb::addr_t module_addr) override;
+  void OnDebugString(const std::string &string) override;
+  void OnDebuggerError(const Error &error, uint32_t type) override;
+
+private:
+  Error WaitForDebuggerConnection(DebuggerThreadSP debugger,
+                                  HostProcess &process);
+
   // These decode the page protection bits.
   static bool IsPageReadable(uint32_t protect);
-
   static bool IsPageWritable(uint32_t protect);
-
   static bool IsPageExecutable(uint32_t protect);
+
+  llvm::sys::Mutex m_mutex;
+  std::unique_ptr<ProcessWindowsData> m_session_data;
 };
 }
 
 #endif // liblldb_Plugins_Process_Windows_Common_ProcessWindows_H_

source/Plugins/Process/Windows/Common/ProcessWindows.cpp

 //===-- ProcessWindows.cpp --------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 #include "ProcessWindows.h"
 
+// Windows includes
+#include "lldb/Host/windows/windows.h"
+#include <psapi.h>
+
 // Other libraries and framework includes
 #include "lldb/Core/Module.h"
 #include "lldb/Core/ModuleSpec.h"
 #include "lldb/Core/PluginManager.h"
 #include "lldb/Core/Section.h"
 #include "lldb/Core/State.h"
+#include "lldb/Host/HostNativeProcessBase.h"
+#include "lldb/Host/HostProcess.h"
+#include "lldb/Host/windows/HostThreadWindows.h"
 #include "lldb/Host/windows/windows.h"
 #include "lldb/Target/DynamicLoader.h"
 #include "lldb/Target/MemoryRegionInfo.h"
+#include "lldb/Target/StopInfo.h"
 #include "lldb/Target/Target.h"
 
+#include "llvm/Support/ConvertUTF.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/raw_ostream.h"
+
+#include "DebuggerThread.h"
+#include "ExceptionRecord.h"
+#include "ForwardDecl.h"
+#include "LocalDebugDelegate.h"
+#include "ProcessWindowsLog.h"
+#include "TargetThreadWindows.h"
+
 using namespace lldb;
 using namespace lldb_private;
 
+namespace {
+std::string GetProcessExecutableName(HANDLE process_handle) {
+  std::vector<wchar_t> file_name;
+  DWORD file_name_size = MAX_PATH; // first guess, not an absolute limit
+  DWORD copied = 0;
+  do {
+    file_name_size *= 2;
+    file_name.resize(file_name_size);
+    copied = ::GetModuleFileNameExW(process_handle, NULL, file_name.data(),
+                                    file_name_size);
+  } while (copied >= file_name_size);
+  file_name.resize(copied);
+  std::string result;
+  llvm::convertWideToUTF8(file_name.data(), result);
+  return result;
+}
+
+std::string GetProcessExecutableName(DWORD pid) {
+  std::string file_name;
+  HANDLE process_handle =
+      ::OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pid);
+  if (process_handle != NULL) {
+    file_name = GetProcessExecutableName(process_handle);
+    ::CloseHandle(process_handle);
+  }
+  return file_name;
+}
+
+} // anonymous namespace
+
 namespace lldb_private {
 
+// We store a pointer to this class in the ProcessWindows, so that we don't
+// expose Windows-specific types and implementation details from a public header
+// file.
+class ProcessWindowsData {
+public:
+  ProcessWindowsData(bool stop_at_entry) : m_stop_at_entry(stop_at_entry) {
+    m_initial_stop_event = ::CreateEvent(nullptr, TRUE, FALSE, nullptr);
+  }
+
+  ~ProcessWindowsData() { ::CloseHandle(m_initial_stop_event); }
+
+  Error m_launch_error;
+  DebuggerThreadSP m_debugger;
+  StopInfoSP m_pending_stop_info;
+  HANDLE m_initial_stop_event = nullptr;
+  bool m_initial_stop_received = false;
+  bool m_stop_at_entry;
+  std::map<lldb::tid_t, HostThread> m_new_threads;
+  std::set<lldb::tid_t> m_exited_threads;
+};
+
+ProcessSP ProcessWindows::CreateInstance(lldb::TargetSP target_sp,
+                                         lldb::ListenerSP listener_sp,
+                                         const FileSpec *) {
+  return ProcessSP(new ProcessWindows(target_sp, listener_sp));
+}
+
+void ProcessWindows::Initialize() {
+  static std::once_flag g_once_flag;
+
+  std::call_once(g_once_flag, []() {
+    PluginManager::RegisterPlugin(GetPluginNameStatic(),
+                                  GetPluginDescriptionStatic(), CreateInstance);
+  });
+}
+
+void ProcessWindows::Terminate() {}
+
+lldb_private::ConstString ProcessWindows::GetPluginNameStatic() {
+  static ConstString g_name("windows");
+  return g_name;
+}
+
+const char *ProcessWindows::GetPluginDescriptionStatic() {
+  return "Process plugin for Windows";
+}
+
 //------------------------------------------------------------------------------
 // Constructors and destructors.
 
 ProcessWindows::ProcessWindows(lldb::TargetSP target_sp,
                                lldb::ListenerSP listener_sp)
     : lldb_private::Process(target_sp, listener_sp) {}
 
 ProcessWindows::~ProcessWindows() {}
size_t ProcessWindows::PutSTDIN(const char *buf, size_t buf_size,
                                 Error &error) {
   error.SetErrorString("PutSTDIN unsupported on Windows");
   return 0;
 }
 
 //------------------------------------------------------------------------------
 // ProcessInterface protocol.
 
+lldb_private::ConstString ProcessWindows::GetPluginName() {
+  return GetPluginNameStatic();
+}
+
+uint32_t ProcessWindows::GetPluginVersion() { return 1; }
+
+Error ProcessWindows::EnableBreakpointSite(BreakpointSite *bp_site) {
+  WINLOG_IFALL(WINDOWS_LOG_BREAKPOINTS,
+               "EnableBreakpointSite called with bp_site 0x%p "
+               "(id=%d, addr=0x%llx)",
+               bp_site, bp_site->GetID(), bp_site->GetLoadAddress());
+
+  Error error = EnableSoftwareBreakpoint(bp_site);
+  if (!error.Success()) {
+    WINERR_IFALL(WINDOWS_LOG_BREAKPOINTS, "EnableBreakpointSite failed.  %s",
+                 error.AsCString());
+  }
+  return error;
+}
+
+Error ProcessWindows::DisableBreakpointSite(BreakpointSite *bp_site) {
+  WINLOG_IFALL(WINDOWS_LOG_BREAKPOINTS,
+               "DisableBreakpointSite called with bp_site 0x%p "
+               "(id=%d, addr=0x%llx)",
+               bp_site, bp_site->GetID(), bp_site->GetLoadAddress());
+
+  Error error = DisableSoftwareBreakpoint(bp_site);
+
+  if (!error.Success()) {
+    WINERR_IFALL(WINDOWS_LOG_BREAKPOINTS, "DisableBreakpointSite failed.  %s",
+                 error.AsCString());
+  }
+  return error;
+}
+
+Error ProcessWindows::DoDetach(bool keep_stopped) {
+  DebuggerThreadSP debugger_thread;
+  StateType private_state;
+  {
+    // Acquire the lock only long enough to get the DebuggerThread.
+    // StopDebugging() will trigger a call back into ProcessWindows which
+    // will also acquire the lock.  Thus we have to release the lock before
+    // calling StopDebugging().
+    llvm::sys::ScopedLock lock(m_mutex);
+
+    private_state = GetPrivateState();
+
+    if (!m_session_data) {
+      WINWARN_IFALL(
+          WINDOWS_LOG_PROCESS,
+          "DoDetach called while state = %u, but there is no active session.",
+          private_state);
+      return Error();
+    }
+
+    debugger_thread = m_session_data->m_debugger;
+  }
+
+  Error error;
+  if (private_state != eStateExited && private_state != eStateDetached) {
+    WINLOG_IFALL(
+        WINDOWS_LOG_PROCESS,
+        "DoDetach called for process %p while state = %d.  Detaching...",
+        debugger_thread->GetProcess().GetNativeProcess().GetSystemHandle(),
+        private_state);
+    error = debugger_thread->StopDebugging(false);
+    if (error.Success()) {
+      SetPrivateState(eStateDetached);
+    }
+
+    // By the time StopDebugging returns, there is no more debugger thread, so
+    // we can be assured that no other thread will race for the session data.
+    m_session_data.reset();
+  } else {
+    WINERR_IFALL(
+        WINDOWS_LOG_PROCESS, "DoDetach called for process %p while state = "
+                             "%d, but cannot destroy in this state.",
+        debugger_thread->GetProcess().GetNativeProcess().GetSystemHandle(),
+        private_state);
+  }
+
+  return error;
+}
+
+Error ProcessWindows::DoLaunch(Module *exe_module,
+                               ProcessLaunchInfo &launch_info) {
+  // Even though m_session_data is accessed here, it is before a debugger thread
+  // has been
+  // kicked off.  So there's no race conditions, and it shouldn't be necessary
+  // to acquire
+  // the mutex.
+
+  Error result;
+  if (!launch_info.GetFlags().Test(eLaunchFlagDebug)) {
+    StreamString stream;
+    stream.Printf("ProcessWindows unable to launch '%s'.  ProcessWindows can "
+                  "only be used for debug launches.",
+                  launch_info.GetExecutableFile().GetPath().c_str());
+    std::string message = stream.GetString();
+    result.SetErrorString(message.c_str());
+
+    WINERR_IFALL(WINDOWS_LOG_PROCESS, "%s", message.c_str());
+    return result;
+  }
+
+  bool stop_at_entry = launch_info.GetFlags().Test(eLaunchFlagStopAtEntry);
+  m_session_data.reset(new ProcessWindowsData(stop_at_entry));
+
+  SetPrivateState(eStateLaunching);
+  DebugDelegateSP delegate(new LocalDebugDelegate(shared_from_this()));
+  m_session_data->m_debugger.reset(new DebuggerThread(delegate));
+  DebuggerThreadSP debugger = m_session_data->m_debugger;
+
+  // Kick off the DebugLaunch asynchronously and wait for it to complete.
+  result = debugger->DebugLaunch(launch_info);
+  if (result.Fail()) {
+    WINERR_IFALL(WINDOWS_LOG_PROCESS, "DoLaunch failed launching '%s'.  %s",
+                 launch_info.GetExecutableFile().GetPath().c_str(),
+                 result.AsCString());
+    return result;
+  }
+
+  HostProcess process;
+  Error error = WaitForDebuggerConnection(debugger, process);
+  if (error.Fail()) {
+    WINERR_IFALL(WINDOWS_LOG_PROCESS, "DoLaunch failed launching '%s'.  %s",
+                 launch_info.GetExecutableFile().GetPath().c_str(),
+                 error.AsCString());
+    return error;
+  }
+
+  WINLOG_IFALL(WINDOWS_LOG_PROCESS, "DoLaunch successfully launched '%s'",
+               launch_info.GetExecutableFile().GetPath().c_str());
+
+  // We've hit the initial stop.  If eLaunchFlagsStopAtEntry was specified, the
+  // private state
+  // should already be set to eStateStopped as a result of hitting the initial
+  // breakpoint.  If
+  // it was not set, the breakpoint should have already been resumed from and
+  // the private state
+  // should already be eStateRunning.
+  launch_info.SetProcessID(process.GetProcessId());
+  SetID(process.GetProcessId());
+
+  return result;
+}
+
+Error ProcessWindows::DoAttachToProcessWithID(
+    lldb::pid_t pid, const ProcessAttachInfo &attach_info) {
+  m_session_data.reset(
+      new ProcessWindowsData(!attach_info.GetContinueOnceAttached()));
+
+  DebugDelegateSP delegate(new LocalDebugDelegate(shared_from_this()));
+  DebuggerThreadSP debugger(new DebuggerThread(delegate));
+
+  m_session_data->m_debugger = debugger;
+
+  DWORD process_id = static_cast<DWORD>(pid);
+  Error error = debugger->DebugAttach(process_id, attach_info);
+  if (error.Fail()) {
+    WINLOG_IFALL(WINDOWS_LOG_PROCESS, "DoAttachToProcessWithID encountered an "
+                                      "error occurred initiating the "
+                                      "asynchronous attach.  %s",
+                 error.AsCString());
+    return error;
+  }
+
+  HostProcess process;
+  error = WaitForDebuggerConnection(debugger, process);
+  if (error.Fail()) {
+    WINLOG_IFALL(WINDOWS_LOG_PROCESS, "DoAttachToProcessWithID encountered an "
+                                      "error waiting for the debugger to "
+                                      "connect.  %s",
+                 error.AsCString());
+    return error;
+  }
+
+  WINLOG_IFALL(
+      WINDOWS_LOG_PROCESS,
+      "DoAttachToProcessWithID successfully attached to process with pid=%lu",
+      process_id);
+
+  // We've hit the initial stop.  If eLaunchFlagsStopAtEntry was specified, the
+  // private state
+  // should already be set to eStateStopped as a result of hitting the initial
+  // breakpoint.  If
+  // it was not set, the breakpoint should have already been resumed from and
+  // the private state
+  // should already be eStateRunning.
+  SetID(process.GetProcessId());
+  return error;
+}
+
+Error ProcessWindows::DoResume() {
+  llvm::sys::ScopedLock lock(m_mutex);
+  Error error;
+
+  StateType private_state = GetPrivateState();
+  if (private_state == eStateStopped || private_state == eStateCrashed) {
+    WINLOG_IFALL(
+        WINDOWS_LOG_PROCESS,
+        "DoResume called for process %I64u while state is %u.  Resuming...",
+        m_session_data->m_debugger->GetProcess().GetProcessId(),
+        GetPrivateState());
+
+    ExceptionRecordSP active_exception =
+        m_session_data->m_debugger->GetActiveException().lock();
+    if (active_exception) {
+      // Resume the process and continue processing debug events.  Mask
+      // the exception so that from the process's view, there is no
+      // indication that anything happened.
+      m_session_data->m_debugger->ContinueAsyncException(
+          ExceptionResult::MaskException);
+    }
+
+    WINLOG_IFANY(WINDOWS_LOG_PROCESS | WINDOWS_LOG_THREAD,
+                 "DoResume resuming %u threads.", m_thread_list.GetSize());
+
+    for (uint32_t i = 0; i < m_thread_list.GetSize(); ++i) {
+      auto thread = std::static_pointer_cast<TargetThreadWindows>(
+          m_thread_list.GetThreadAtIndex(i));
+      thread->DoResume();
+    }
+
+    SetPrivateState(eStateRunning);
+  } else {
+    WINERR_IFALL(
+        WINDOWS_LOG_PROCESS,
+        "DoResume called for process %I64u but state is %u.  Returning...",
+        m_session_data->m_debugger->GetProcess().GetProcessId(),
+        GetPrivateState());
+  }
+  return error;
+}
+
+Error ProcessWindows::DoDestroy() {
+  DebuggerThreadSP debugger_thread;
+  StateType private_state;
+  {
+    // Acquire this lock inside an inner scope, only long enough to get the
+    // DebuggerThread.
+    // StopDebugging() will trigger a call back into ProcessWindows which will
+    // acquire the lock
+    // again, so we need to not deadlock.
+    llvm::sys::ScopedLock lock(m_mutex);
+
+    private_state = GetPrivateState();
+
+    if (!m_session_data) {
+      WINWARN_IFALL(
+          WINDOWS_LOG_PROCESS,
+          "DoDestroy called while state = %u, but there is no active session.",
+          private_state);
+      return Error();
+    }
+
+    debugger_thread = m_session_data->m_debugger;
+  }
+
+  Error error;
+  if (private_state != eStateExited && private_state != eStateDetached) {
+    WINLOG_IFALL(
+        WINDOWS_LOG_PROCESS, "DoDestroy called for process %p while state = "
+                             "%u.  Shutting down...",
+        debugger_thread->GetProcess().GetNativeProcess().GetSystemHandle(),
+        private_state);
+    error = debugger_thread->StopDebugging(true);
+
+    // By the time StopDebugging returns, there is no more debugger thread, so
+    // we can be assured that no other thread will race for the session data.
+    m_session_data.reset();
+  } else {
+    WINERR_IFALL(
+        WINDOWS_LOG_PROCESS, "DoDestroy called for process %p while state = "
+                             "%d, but cannot destroy in this state.",
+        debugger_thread->GetProcess().GetNativeProcess().GetSystemHandle(),
+        private_state);
+  }
+
+  return error;
+}
+
+Error ProcessWindows::DoHalt(bool &caused_stop) {
+  Error error;
+  StateType state = GetPrivateState();
+  if (state == eStateStopped)
+    caused_stop = false;
+  else {
+    llvm::sys::ScopedLock lock(m_mutex);
+    caused_stop = ::DebugBreakProcess(m_session_data->m_debugger->GetProcess()
+                                          .GetNativeProcess()
+                                          .GetSystemHandle());
+    if (!caused_stop) {
+      error.SetError(::GetLastError(), eErrorTypeWin32);
+      WINERR_IFALL(
+          WINDOWS_LOG_PROCESS,
+          "DoHalt called DebugBreakProcess, but it failed with error %u",
+          error.GetError());
+    }
+  }
+  return error;
+}
+
+void ProcessWindows::DidLaunch() {
+  ArchSpec arch_spec;
+  DidAttach(arch_spec);
+}
+
+void ProcessWindows::DidAttach(ArchSpec &arch_spec) {
+  llvm::sys::ScopedLock lock(m_mutex);
+
+  // The initial stop won't broadcast the state change event, so account for
+  // that here.
+  if (m_session_data && GetPrivateState() == eStateStopped &&
+      m_session_data->m_stop_at_entry)
+    RefreshStateAfterStop();
+}
+
+void ProcessWindows::RefreshStateAfterStop() {
+  llvm::sys::ScopedLock lock(m_mutex);
+
+  if (!m_session_data) {
+    WINWARN_IFALL(
+        WINDOWS_LOG_PROCESS,
+        "RefreshStateAfterStop called with no active session.  Returning...");
+    return;
+  }
+
+  m_thread_list.RefreshStateAfterStop();
+
+  std::weak_ptr<ExceptionRecord> exception_record =
+      m_session_data->m_debugger->GetActiveException();
+  ExceptionRecordSP active_exception = exception_record.lock();
+  if (!active_exception) {
+    WINERR_IFALL(
+        WINDOWS_LOG_PROCESS,
+        "RefreshStateAfterStop called for process %I64u but there is no "
+        "active exception.  Why is the process stopped?",
+        m_session_data->m_debugger->GetProcess().GetProcessId());
+    return;
+  }
+
+  StopInfoSP stop_info;
+  m_thread_list.SetSelectedThreadByID(active_exception->GetThreadID());
+  ThreadSP stop_thread = m_thread_list.GetSelectedThread();
+  if (!stop_thread)
+    return;
+
+  switch (active_exception->GetExceptionCode()) {
+  case EXCEPTION_SINGLE_STEP: {
+    RegisterContextSP register_context = stop_thread->GetRegisterContext();
+    const uint64_t pc = register_context->GetPC();
+    BreakpointSiteSP site(GetBreakpointSiteList().FindByAddress(pc));
+    if (site && site->ValidForThisThread(stop_thread.get())) {
+      WINLOG_IFANY(WINDOWS_LOG_BREAKPOINTS | WINDOWS_LOG_EXCEPTION |
+                       WINDOWS_LOG_STEP,
+                   "Single-stepped onto a breakpoint in process %I64u at "
+                   "address 0x%I64x with breakpoint site %d",
+                   m_session_data->m_debugger->GetProcess().GetProcessId(), pc,
+                   site->GetID());
+      stop_info = StopInfo::CreateStopReasonWithBreakpointSiteID(*stop_thread,
+                                                                 site->GetID());
+      stop_thread->SetStopInfo(stop_info);
+    } else {
+      WINLOG_IFANY(WINDOWS_LOG_EXCEPTION | WINDOWS_LOG_STEP,
+                   "RefreshStateAfterStop single stepping thread %llu",
+                   stop_thread->GetID());
+      stop_info = StopInfo::CreateStopReasonToTrace(*stop_thread);
+      stop_thread->SetStopInfo(stop_info);
+    }
+    return;
+  }
+
+  case EXCEPTION_BREAKPOINT: {
+    RegisterContextSP register_context = stop_thread->GetRegisterContext();
+
+    // The current EIP is AFTER the BP opcode, which is one byte.
+    uint64_t pc = register_context->GetPC() - 1;
+
+    BreakpointSiteSP site(GetBreakpointSiteList().FindByAddress(pc));
+    if (site) {
+      WINLOG_IFANY(
+          WINDOWS_LOG_BREAKPOINTS | WINDOWS_LOG_EXCEPTION,
+          "RefreshStateAfterStop detected breakpoint in process %I64u at "
+          "address 0x%I64x with breakpoint site %d",
+          m_session_data->m_debugger->GetProcess().GetProcessId(), pc,
+          site->GetID());
+
+      if (site->ValidForThisThread(stop_thread.get())) {
+        WINLOG_IFALL(WINDOWS_LOG_BREAKPOINTS | WINDOWS_LOG_EXCEPTION,
+                     "Breakpoint site %d is valid for this thread (0x%I64x), "
+                     "creating stop info.",
+                     site->GetID(), stop_thread->GetID());
+
+        stop_info = StopInfo::CreateStopReasonWithBreakpointSiteID(
+            *stop_thread, site->GetID());
+        register_context->SetPC(pc);
+      } else {
+        WINLOG_IFALL(WINDOWS_LOG_BREAKPOINTS | WINDOWS_LOG_EXCEPTION,
+                     "Breakpoint site %d is not valid for this thread, "
+                     "creating empty stop info.",
+                     site->GetID());
+      }
+      stop_thread->SetStopInfo(stop_info);
+      return;
+    } else {
+      // The thread hit a hard-coded breakpoint like an `int 3` or
+      // `__debugbreak()`.
+      WINLOG_IFALL(
+          WINDOWS_LOG_BREAKPOINTS | WINDOWS_LOG_EXCEPTION,
+          "No breakpoint site matches for this thread. __debugbreak()?  "
+          "Creating stop info with the exception.");
+      // FALLTHROUGH:  We'll treat this as a generic exception record in the
+      // default case.
+    }
+  }
+
+  default: {
+    std::string desc;
+    llvm::raw_string_ostream desc_stream(desc);
+    desc_stream << "Exception "
+                << llvm::format_hex(active_exception->GetExceptionCode(), 8)
+                << " encountered at address "
+                << llvm::format_hex(active_exception->GetExceptionAddress(), 8);
+    stop_info = StopInfo::CreateStopReasonWithException(
+        *stop_thread, desc_stream.str().c_str());
+    stop_thread->SetStopInfo(stop_info);
+    WINLOG_IFALL(WINDOWS_LOG_EXCEPTION, "%s", desc_stream.str().c_str());
+    return;
+  }
+  }
+}
+
+bool ProcessWindows::CanDebug(lldb::TargetSP target_sp,
+                              bool plugin_specified_by_name) {
+  if (plugin_specified_by_name)
+    return true;
+
+  // For now we are just making sure the file exists for a given module
+  ModuleSP exe_module_sp(target_sp->GetExecutableModule());
+  if (exe_module_sp.get())
+    return exe_module_sp->GetFileSpec().Exists();
+  // However, if there is no executable module, we return true since we might be
+  // preparing to attach.
+  return true;
+}
+
+bool ProcessWindows::UpdateThreadList(ThreadList &old_thread_list,
+                                      ThreadList &new_thread_list) {
+  // Add all the threads that were previously running and for which we did not
+  // detect a thread exited event.
+  int new_size = 0;
+  int continued_threads = 0;
+  int exited_threads = 0;
+  int new_threads = 0;
+
+  for (ThreadSP old_thread : old_thread_list.Threads()) {
+    lldb::tid_t old_thread_id = old_thread->GetID();
+    auto exited_thread_iter =
+        m_session_data->m_exited_threads.find(old_thread_id);
+    if (exited_thread_iter == m_session_data->m_exited_threads.end()) {
+      new_thread_list.AddThread(old_thread);
+      ++new_size;
+      ++continued_threads;
+      WINLOGV_IFALL(
+          WINDOWS_LOG_THREAD,
+          "UpdateThreadList - Thread %llu was running and is still running.",
+          old_thread_id);
+    } else {
+      WINLOGV_IFALL(
+          WINDOWS_LOG_THREAD,
+          "UpdateThreadList - Thread %llu was running and has exited.",
+          old_thread_id);
+      ++exited_threads;
+    }
+  }
+
+  // Also add all the threads that are new since the last time we broke into the
+  // debugger.
+  for (const auto &thread_info : m_session_data->m_new_threads) {
+    ThreadSP thread(new TargetThreadWindows(*this, thread_info.second));
+    thread->SetID(thread_info.first);
+    new_thread_list.AddThread(thread);
+    ++new_size;
+    ++new_threads;
+    WINLOGV_IFALL(WINDOWS_LOG_THREAD,
+                  "UpdateThreadList - Thread %llu is new since last update.",
+                  thread_info.first);
+  }
+
+  WINLOG_IFALL(
+      WINDOWS_LOG_THREAD,
+      "UpdateThreadList - %d new threads, %d old threads, %d exited threads.",
+      new_threads, continued_threads, exited_threads);
+
+  m_session_data->m_new_threads.clear();
+  m_session_data->m_exited_threads.clear();
+
+  return new_size > 0;
+}
+
+bool ProcessWindows::IsAlive() {
+  StateType state = GetPrivateState();
+  switch (state) {
+  case eStateCrashed:
+  case eStateDetached:
+  case eStateUnloaded:
+  case eStateExited:
+  case eStateInvalid:
+    return false;
+  default:
+    return true;
+  }
+}
+
+size_t ProcessWindows::DoReadMemory(lldb::addr_t vm_addr, void *buf,
+                                    size_t size, Error &error) {
+  llvm::sys::ScopedLock lock(m_mutex);
+
+  if (!m_session_data)
+    return 0;
+
+  WINLOG_IFALL(WINDOWS_LOG_MEMORY,
+               "DoReadMemory attempting to read %u bytes from address 0x%I64x",
+               size, vm_addr);
+
+  HostProcess process = m_session_data->m_debugger->GetProcess();
+  void *addr = reinterpret_cast<void *>(vm_addr);
+  SIZE_T bytes_read = 0;
+  if (!ReadProcessMemory(process.GetNativeProcess().GetSystemHandle(), addr,
+                         buf, size, &bytes_read)) {
+    error.SetError(GetLastError(), eErrorTypeWin32);
+    WINERR_IFALL(WINDOWS_LOG_MEMORY, "DoReadMemory failed with error code %u",
+                 error.GetError());
+  }
+  return bytes_read;
+}
+
+size_t ProcessWindows::DoWriteMemory(lldb::addr_t vm_addr, const void *buf,
+                                     size_t size, Error &error) {
+  llvm::sys::ScopedLock lock(m_mutex);
+  WINLOG_IFALL(
+      WINDOWS_LOG_MEMORY,
+      "DoWriteMemory attempting to write %u bytes into address 0x%I64x", size,
+      vm_addr);
+
+  if (!m_session_data) {
+    WINERR_IFANY(
+        WINDOWS_LOG_MEMORY,
+        "DoWriteMemory cannot write, there is no active debugger connection.");
+    return 0;
+  }
+
+  HostProcess process = m_session_data->m_debugger->GetProcess();
+  void *addr = reinterpret_cast<void *>(vm_addr);
+  SIZE_T bytes_written = 0;
+  lldb::process_t handle = process.GetNativeProcess().GetSystemHandle();
+  if (WriteProcessMemory(handle, addr, buf, size, &bytes_written))
+    FlushInstructionCache(handle, addr, bytes_written);
+  else {
+    error.SetError(GetLastError(), eErrorTypeWin32);
+    WINLOG_IFALL(WINDOWS_LOG_MEMORY, "DoWriteMemory failed with error code %u",
+                 error.GetError());
+  }
+  return bytes_written;
+}
+
+#define BOOL_STR(b) ((b) ? "true" : "false")
+
+Error ProcessWindows::GetMemoryRegionInfo(lldb::addr_t vm_addr,
+                                          MemoryRegionInfo &info) {
+  Error error;
+  llvm::sys::ScopedLock lock(m_mutex);
+  info.Clear();
+
+  if (!m_session_data) {
+    error.SetErrorString(
+        "GetMemoryRegionInfo called with no debugging session.");
+    WINERR_IFALL(WINDOWS_LOG_MEMORY, "%s", error.AsCString());
+    return error;
+  }
+  HostProcess process = m_session_data->m_debugger->GetProcess();
+  lldb::process_t handle = process.GetNativeProcess().GetSystemHandle();
+  if (handle == nullptr || handle == LLDB_INVALID_PROCESS) {
+    error.SetErrorString(
+        "GetMemoryRegionInfo called with an invalid target process.");
+    WINERR_IFALL(WINDOWS_LOG_MEMORY, "%s", error.AsCString());
+    return error;
+  }
+
+  WINLOG_IFALL(WINDOWS_LOG_MEMORY,
+               "GetMemoryRegionInfo getting info for address 0x%I64x", vm_addr);
+
+  void *addr = reinterpret_cast<void *>(vm_addr);
+  MEMORY_BASIC_INFORMATION mem_info = {};
+  SIZE_T result = ::VirtualQueryEx(handle, addr, &mem_info, sizeof(mem_info));
+  if (result == 0) {
+    if (::GetLastError() == ERROR_INVALID_PARAMETER) {
+      // ERROR_INVALID_PARAMETER is returned if VirtualQueryEx is called with an
+      // address
+      // past the highest accessible address. We should return a range from the
+      // vm_addr
+      // to LLDB_INVALID_ADDRESS
+      info.GetRange().SetRangeBase(vm_addr);
+      info.GetRange().SetRangeEnd(LLDB_INVALID_ADDRESS);
+      info.SetReadable(MemoryRegionInfo::eNo);
+      info.SetExecutable(MemoryRegionInfo::eNo);
+      info.SetWritable(MemoryRegionInfo::eNo);
+      info.SetMapped(MemoryRegionInfo::eNo);
+      return error;
+    } else {
+      error.SetError(::GetLastError(), eErrorTypeWin32);
+      WINERR_IFALL(WINDOWS_LOG_MEMORY, "VirtualQueryEx returned error %u while "
+                                       "getting memory region info for address "
+                                       "0x%I64x",
+                   error.GetError(), vm_addr);
+      return error;
+    }
+  }
+
+  // Protect bits are only valid for MEM_COMMIT regions.
+  if (mem_info.State == MEM_COMMIT) {
+    const bool readable = IsPageReadable(mem_info.Protect);
+    const bool executable = IsPageExecutable(mem_info.Protect);
+    const bool writable = IsPageWritable(mem_info.Protect);
+    info.SetReadable(readable ? MemoryRegionInfo::eYes : MemoryRegionInfo::eNo);
+    info.SetExecutable(executable ? MemoryRegionInfo::eYes
+                                  : MemoryRegionInfo::eNo);
+    info.SetWritable(writable ? MemoryRegionInfo::eYes : MemoryRegionInfo::eNo);
+  } else {
+    info.SetReadable(MemoryRegionInfo::eNo);
+    info.SetExecutable(MemoryRegionInfo::eNo);
+    info.SetWritable(MemoryRegionInfo::eNo);
+  }
+
+  // AllocationBase is defined for MEM_COMMIT and MEM_RESERVE but not MEM_FREE.
+  if (mem_info.State != MEM_FREE) {
+    info.GetRange().SetRangeBase(
+        reinterpret_cast<addr_t>(mem_info.AllocationBase));
+    info.GetRange().SetRangeEnd(reinterpret_cast<addr_t>(mem_info.BaseAddress) +
+                                mem_info.RegionSize);
+    info.SetMapped(MemoryRegionInfo::eYes);
+  } else {
+    // In the unmapped case we need to return the distance to the next block of
+    // memory.
+    // VirtualQueryEx nearly does that except that it gives the distance from
+    // the start
+    // of the page containing vm_addr.
+    SYSTEM_INFO data;
+    GetSystemInfo(&data);
+    DWORD page_offset = vm_addr % data.dwPageSize;
+    info.GetRange().SetRangeBase(vm_addr);
+    info.GetRange().SetByteSize(mem_info.RegionSize - page_offset);
+    info.SetMapped(MemoryRegionInfo::eNo);
+  }
+
+  error.SetError(::GetLastError(), eErrorTypeWin32);
+  WINLOGV_IFALL(WINDOWS_LOG_MEMORY, "Memory region info for address %llu: "
+                                    "readable=%s, executable=%s, writable=%s",
+                vm_addr, BOOL_STR(info.GetReadable()),
+                BOOL_STR(info.GetExecutable()), BOOL_STR(info.GetWritable()));
+  return error;
+}
+
 lldb::addr_t ProcessWindows::GetImageInfoAddress() {
   Target &target = GetTarget();
   ObjectFile *obj_file = target.GetExecutableModule()->GetObjectFile();
   Address addr = obj_file->GetImageInfoAddress(&target);
   if (addr.IsValid())
     return addr.GetLoadAddress(&target);
   else
     return LLDB_INVALID_ADDRESS;
 }
 
+void ProcessWindows::OnExitProcess(uint32_t exit_code) {
+  // No need to acquire the lock since m_session_data isn't accessed.
+  WINLOG_IFALL(WINDOWS_LOG_PROCESS, "Process %llu exited with code %u", GetID(),
+               exit_code);
+
+  TargetSP target = m_target_sp.lock();
+  if (target) {
+    ModuleSP executable_module = target->GetExecutableModule();
+    ModuleList unloaded_modules;
+    unloaded_modules.Append(executable_module);
+    target->ModulesDidUnload(unloaded_modules, true);
+  }
+
+  SetProcessExitStatus(GetID(), true, 0, exit_code);
+  SetPrivateState(eStateExited);
+}
+
+void ProcessWindows::OnDebuggerConnected(lldb::addr_t image_base) {
+  DebuggerThreadSP debugger = m_session_data->m_debugger;
+
+  WINLOG_IFALL(WINDOWS_LOG_PROCESS,
+               "Debugger connected to process %I64u.  Image base = 0x%I64x",
+               debugger->GetProcess().GetProcessId(), image_base);
+
+  ModuleSP module = GetTarget().GetExecutableModule();
+  if (!module) {
+    // During attach, we won't have the executable module, so find it now.
+    const DWORD pid = debugger->GetProcess().GetProcessId();
+    const std::string file_name = GetProcessExecutableName(pid);
+    if (file_name.empty()) {
+      return;
+    }
+
+    FileSpec executable_file(file_name, true);
+    ModuleSpec module_spec(executable_file);
+    Error error;
+    module = GetTarget().GetSharedModule(module_spec, &error);
+    if (!module) {
+      return;
+    }
+
+    GetTarget().SetExecutableModule(module, false);
+  }
+
+  bool load_addr_changed;
+  module->SetLoadAddress(GetTarget(), image_base, false, load_addr_changed);
+
+  ModuleList loaded_modules;
+  loaded_modules.Append(module);
+  GetTarget().ModulesDidLoad(loaded_modules);
+
+  // Add the main executable module to the list of pending module loads.  We
+  // can't call
+  // GetTarget().ModulesDidLoad() here because we still haven't returned from
+  // DoLaunch() / DoAttach() yet
+  // so the target may not have set the process instance to `this` yet.
+  llvm::sys::ScopedLock lock(m_mutex);
+  const HostThreadWindows &wmain_thread =
+      debugger->GetMainThread().GetNativeThread();
+  m_session_data->m_new_threads[wmain_thread.GetThreadId()] =
+      debugger->GetMainThread();
+}
+
+ExceptionResult
+ProcessWindows::OnDebugException(bool first_chance,
+                                 const ExceptionRecord &record) {
+  llvm::sys::ScopedLock lock(m_mutex);
+
+  // FIXME: Without this check, occasionally when running the test suite there
+  // is
+  // an issue where m_session_data can be null.  It's not clear how this could
+  // happen
+  // but it only surfaces while running the test suite.  In order to properly
+  // diagnose
+  // this, we probably need to first figure allow the test suite to print out
+  // full
+  // lldb logs, and then add logging to the process plugin.
+  if (!m_session_data) {
+    WINERR_IFANY(WINDOWS_LOG_EXCEPTION, "Debugger thread reported exception "
+                                        "0x%lx at address 0x%llu, but there is "
+                                        "no session.",
+                 record.GetExceptionCode(), record.GetExceptionAddress());
+    return ExceptionResult::SendToApplication;
+  }
+
+  if (!first_chance) {
+    // Any second chance exception is an application crash by definition.
+    SetPrivateState(eStateCrashed);
+  }
+
+  ExceptionResult result = ExceptionResult::SendToApplication;
+  switch (record.GetExceptionCode()) {
+  case EXCEPTION_BREAKPOINT:
+    // Handle breakpoints at the first chance.
+    result = ExceptionResult::BreakInDebugger;
+
+    if (!m_session_data->m_initial_stop_received) {
+      WINLOG_IFANY(WINDOWS_LOG_BREAKPOINTS, "Hit loader breakpoint at address "
+                                            "0x%I64x, setting initial stop "
+                                            "event.",
+                   record.GetExceptionAddress());
+      m_session_data->m_initial_stop_received = true;
+      ::SetEvent(m_session_data->m_initial_stop_event);
+    } else {
+      WINLOG_IFANY(WINDOWS_LOG_BREAKPOINTS,
+                   "Hit non-loader breakpoint at address 0x%I64x.",
+                   record.GetExceptionAddress());
+    }
+    SetPrivateState(eStateStopped);
+    break;
+  case EXCEPTION_SINGLE_STEP:
+    result = ExceptionResult::BreakInDebugger;
+    SetPrivateState(eStateStopped);
+    break;
+  default:
+    WINLOG_IFANY(WINDOWS_LOG_EXCEPTION, "Debugger thread reported exception "
+                                        "0x%lx at address 0x%llx "
+                                        "(first_chance=%s)",
+                 record.GetExceptionCode(), record.GetExceptionAddress(),
+                 BOOL_STR(first_chance));
+    // For non-breakpoints, give the application a chance to handle the
+    // exception first.
+    if (first_chance)
+      result = ExceptionResult::SendToApplication;
+    else
+      result = ExceptionResult::BreakInDebugger;
+  }
+
+  return result;
+}
+
+void ProcessWindows::OnCreateThread(const HostThread &new_thread) {
+  llvm::sys::ScopedLock lock(m_mutex);
+  const HostThreadWindows &wnew_thread = new_thread.GetNativeThread();
+  m_session_data->m_new_threads[wnew_thread.GetThreadId()] = new_thread;
+}
+
+void ProcessWindows::OnExitThread(lldb::tid_t thread_id, uint32_t exit_code) {
+  llvm::sys::ScopedLock lock(m_mutex);
+
+  // On a forced termination, we may get exit thread events after the session
+  // data has been cleaned up.
+  if (!m_session_data)
+    return;
+
+  // A thread may have started and exited before the debugger stopped allowing a
+  // refresh.
+  // Just remove it from the new threads list in that case.
+  auto iter = m_session_data->m_new_threads.find(thread_id);
+  if (iter != m_session_data->m_new_threads.end())
+    m_session_data->m_new_threads.erase(iter);
+  else
+    m_session_data->m_exited_threads.insert(thread_id);
+}
+
+void ProcessWindows::OnLoadDll(const ModuleSpec &module_spec,
+                               lldb::addr_t module_addr) {
+  // Confusingly, there is no Target::AddSharedModule.  Instead, calling
+  // GetSharedModule() with
+  // a new module will add it to the module list and return a corresponding
+  // ModuleSP.
+  Error error;
+  ModuleSP module = GetTarget().GetSharedModule(module_spec, &error);
+  bool load_addr_changed = false;
+  module->SetLoadAddress(GetTarget(), module_addr, false, load_addr_changed);
+
+  ModuleList loaded_modules;
+  loaded_modules.Append(module);
+  GetTarget().ModulesDidLoad(loaded_modules);
+}
+
+void ProcessWindows::OnUnloadDll(lldb::addr_t module_addr) {
+  Address resolved_addr;
+  if (GetTarget().ResolveLoadAddress(module_addr, resolved_addr)) {
+    ModuleSP module = resolved_addr.GetModule();
+    if (module) {
+      ModuleList unloaded_modules;
+      unloaded_modules.Append(module);
+      GetTarget().ModulesDidUnload(unloaded_modules, false);
+    }
+  }
+}
+
+void ProcessWindows::OnDebugString(const std::string &string) {}
+
+void ProcessWindows::OnDebuggerError(const Error &error, uint32_t type) {
+  llvm::sys::ScopedLock lock(m_mutex);
+
+  if (m_session_data->m_initial_stop_received) {
+    // This happened while debugging.  Do we shutdown the debugging session, try
+    // to continue,
+    // or do something else?
+    WINERR_IFALL(WINDOWS_LOG_PROCESS, "Error %u occurred during debugging.  "
+                                      "Unexpected behavior may result.  %s",
+                 error.GetError(), error.AsCString());
+  } else {
+    // If we haven't actually launched the process yet, this was an error
+    // launching the
+    // process.  Set the internal error and signal the initial stop event so
+    // that the DoLaunch
+    // method wakes up and returns a failure.
+    m_session_data->m_launch_error = error;
+    ::SetEvent(m_session_data->m_initial_stop_event);
+    WINERR_IFALL(
+        WINDOWS_LOG_PROCESS,
+        "Error %u occurred launching the process before the initial stop.  %s",
+        error.GetError(), error.AsCString());
+    return;
+  }
+}
+
+Error ProcessWindows::WaitForDebuggerConnection(DebuggerThreadSP debugger,
+                                                HostProcess &process) {
+  Error result;
+  WINLOG_IFANY(WINDOWS_LOG_PROCESS | WINDOWS_LOG_BREAKPOINTS,
+               "WaitForDebuggerConnection Waiting for loader breakpoint.");
+
+  // Block this function until we receive the initial stop from the process.
+  if (::WaitForSingleObject(m_session_data->m_initial_stop_event, INFINITE) ==
+      WAIT_OBJECT_0) {
+    WINLOG_IFANY(WINDOWS_LOG_PROCESS | WINDOWS_LOG_BREAKPOINTS,
+                 "WaitForDebuggerConnection hit loader breakpoint, returning.");
+
+    process = debugger->GetProcess();
+    return m_session_data->m_launch_error;
+  } else
+    return Error(::GetLastError(), eErrorTypeWin32);
+}
+
 // The Windows page protection bits are NOT independent masks that can be
-// bitwise-ORed
-// together.  For example, PAGE_EXECUTE_READ is not (PAGE_EXECUTE | PAGE_READ).
-// To test for an access type, it's necessary to test for any of the bits that
-// provide
-// that access type.
+// bitwise-ORed together.  For example, PAGE_EXECUTE_READ is not
+// (PAGE_EXECUTE | PAGE_READ).  To test for an access type, it's necessary to
+// test for any of the bits that provide that access type.
 bool ProcessWindows::IsPageReadable(uint32_t protect) {
   return (protect & PAGE_NOACCESS) == 0;
 }
 
 bool ProcessWindows::IsPageWritable(uint32_t protect) {
   return (protect & (PAGE_EXECUTE_READWRITE | PAGE_EXECUTE_WRITECOPY |
                      PAGE_READWRITE | PAGE_WRITECOPY)) != 0;
 }
 
 bool ProcessWindows::IsPageExecutable(uint32_t protect) {
   return (protect & (PAGE_EXECUTE | PAGE_EXECUTE_READ | PAGE_EXECUTE_READWRITE |
                      PAGE_EXECUTE_WRITECOPY)) != 0;
 }
-}
+
+} // namespace lldb_private

source/Plugins/Process/Windows/Common/TargetThreadWindows.h

 #ifndef liblldb_Plugins_Process_Windows_TargetThreadWindows_H_
 #define liblldb_Plugins_Process_Windows_TargetThreadWindows_H_
 
 //#include "ForwardDecl.h"
 #include "lldb/Host/HostThread.h"
 #include "lldb/Target/Thread.h"
 #include "lldb/lldb-forward.h"
 
+#include "RegisterContextWindows.h"
+
 namespace lldb_private {
 class ProcessWindows;
 class HostThread;
 class StackFrame;
 
 class TargetThreadWindows : public lldb_private::Thread {
 public:
   TargetThreadWindows(ProcessWindows &process, const HostThread &thread);
   virtual ~TargetThreadWindows();
 
   // lldb_private::Thread overrides
   void RefreshStateAfterStop() override;
   void WillResume(lldb::StateType resume_state) override;
   void DidStop() override;
+  lldb::RegisterContextSP GetRegisterContext() override;
+  lldb::RegisterContextSP
+  CreateRegisterContextForFrame(StackFrame *frame) override;
   bool CalculateStopInfo() override;
   Unwind *GetUnwinder() override;
 
   bool DoResume();
 
   HostThread GetHostThread() const { return m_host_thread; }
 
 private:
+  lldb::RegisterContextSP CreateRegisterContextForFrameIndex(uint32_t idx);
+
   HostThread m_host_thread;
 };
 }
 
 #endif

source/Plugins/Process/Windows/Common/TargetThreadWindows.cpp

 #include "lldb/Host/windows/windows.h"
 #include "lldb/Target/RegisterContext.h"
 
 #include "ProcessWindows.h"
 #include "ProcessWindowsLog.h"
 #include "TargetThreadWindows.h"
 #include "UnwindLLDB.h"
 
+#if defined(_WIN64)
+#include "x86/RegisterContextWindows_x64.h"
+#else
+#include "x86/RegisterContextWindows_x86.h"
+#endif
+
 using namespace lldb;
 using namespace lldb_private;
 
 TargetThreadWindows::TargetThreadWindows(ProcessWindows &process,
                                          const HostThread &thread)
     : Thread(process, thread.GetNativeThread().GetThreadId()),
       m_host_thread(thread) {}
 
 TargetThreadWindows::~TargetThreadWindows() { DestroyThread(); }
 
 void TargetThreadWindows::RefreshStateAfterStop() {
   ::SuspendThread(m_host_thread.GetNativeThread().GetSystemHandle());
   SetState(eStateStopped);
   GetRegisterContext()->InvalidateIfNeeded(false);
 }
 
 void TargetThreadWindows::WillResume(lldb::StateType resume_state) {}
 
 void TargetThreadWindows::DidStop() {}
 
+RegisterContextSP TargetThreadWindows::GetRegisterContext() {
+  if (!m_reg_context_sp)
+    m_reg_context_sp = CreateRegisterContextForFrameIndex(0);
+
+  return m_reg_context_sp;
+}
+
+RegisterContextSP
+TargetThreadWindows::CreateRegisterContextForFrame(StackFrame *frame) {
+  return CreateRegisterContextForFrameIndex(frame->GetConcreteFrameIndex());
+}
+
+RegisterContextSP
+TargetThreadWindows::CreateRegisterContextForFrameIndex(uint32_t idx) {
+  if (!m_reg_context_sp) {
+    ArchSpec arch = HostInfo::GetArchitecture();
+    switch (arch.GetMachine()) {
+    case llvm::Triple::x86:
+#if defined(_WIN64)
+// FIXME: This is a Wow64 process, create a RegisterContextWindows_Wow64
+#else
+      m_reg_context_sp.reset(new RegisterContextWindows_x86(*this, idx));
+#endif
+      break;
+    case llvm::Triple::x86_64:
+#if defined(_WIN64)
+      m_reg_context_sp.reset(new RegisterContextWindows_x64(*this, idx));
+#else
+// LLDB is 32-bit, but the target process is 64-bit.  We probably can't debug
+// this.
+#endif
+    default:
+      break;
+    }
+  }
+  return m_reg_context_sp;
+}
+
 bool TargetThreadWindows::CalculateStopInfo() {
   SetStopInfo(m_stop_info_sp);
   return true;
 }
 
 Unwind *TargetThreadWindows::GetUnwinder() {
   // FIXME: Implement an unwinder based on the Windows unwinder exposed through
   // DIA SDK.

source/Plugins/Process/Windows/Common/x86/RegisterContextWindows_x86.h

public:
 
   size_t GetRegisterSetCount() override;
 
   const RegisterSet *GetRegisterSet(size_t reg_set) override;
 
   bool ReadRegister(const RegisterInfo *reg_info,
                     RegisterValue &reg_value) override;
 
+  bool WriteRegister(const RegisterInfo *reg_info,
+                     const RegisterValue &reg_value) override;
+
 private:
   bool ReadRegisterHelper(DWORD flags_required, const char *reg_name,
                           DWORD value, RegisterValue &reg_value) const;
 };
 }
 
 #endif // #ifndef liblldb_RegisterContextWindows_x86_H_

source/Plugins/Process/Windows/Common/x86/RegisterContextWindows_x86.cpp

 #include "lldb/Core/RegisterValue.h"
 #include "lldb/Host/windows/HostThreadWindows.h"
 #include "lldb/Host/windows/windows.h"
 #include "lldb/lldb-private-types.h"
 
 #include "ProcessWindowsLog.h"
 #include "RegisterContextWindows_x86.h"
 #include "RegisterContext_x86.h"
+#include "TargetThreadWindows.h"
 #include "lldb-x86-register-enums.h"
 
 #include "llvm/ADT/STLExtras.h"
 
 using namespace lldb;
 using namespace lldb_private;
 
 #define DEFINE_GPR(reg, alt) #reg, alt, 4, 0, eEncodingUint, eFormatHexUppercase
return ReadRegisterHelper(CONTEXT_CONTROL, "EFLAGS", m_context.EFlags,
                               reg_value);
   default:
     WINWARN_IFALL(WINDOWS_LOG_REGISTERS, "Requested unknown register %u", reg);
     break;
   }
   return false;
 }
 
+bool RegisterContextWindows_x86::WriteRegister(const RegisterInfo *reg_info,
+                                               const RegisterValue &reg_value) {
+  // Since we cannot only write a single register value to the inferior, we need
+  // to make sure
+  // our cached copy of the register values are fresh.  Otherwise when writing
+  // EAX, for example,
+  // we may also overwrite some other register with a stale value.
+  if (!CacheAllRegisterValues())
+    return false;
+
+  uint32_t reg = reg_info->kinds[eRegisterKindLLDB];
+  switch (reg) {
+  case lldb_eax_i386:
+    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EAX",
+                 reg_value.GetAsUInt32());
+    m_context.Eax = reg_value.GetAsUInt32();
+    break;
+  case lldb_ebx_i386:
+    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EBX",
+                 reg_value.GetAsUInt32());
+    m_context.Ebx = reg_value.GetAsUInt32();
+    break;
+  case lldb_ecx_i386:
+    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to ECX",
+                 reg_value.GetAsUInt32());
+    m_context.Ecx = reg_value.GetAsUInt32();
+    break;
+  case lldb_edx_i386:
+    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EDX",
+                 reg_value.GetAsUInt32());
+    m_context.Edx = reg_value.GetAsUInt32();
+    break;
+  case lldb_edi_i386:
+    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EDI",
+                 reg_value.GetAsUInt32());
+    m_context.Edi = reg_value.GetAsUInt32();
+    break;
+  case lldb_esi_i386:
+    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to ESI",
+                 reg_value.GetAsUInt32());
+    m_context.Esi = reg_value.GetAsUInt32();
+    break;
+  case lldb_ebp_i386:
+    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EBP",
+                 reg_value.GetAsUInt32());
+    m_context.Ebp = reg_value.GetAsUInt32();
+    break;
+  case lldb_esp_i386:
+    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to ESP",
+                 reg_value.GetAsUInt32());
+    m_context.Esp = reg_value.GetAsUInt32();
+    break;
+  case lldb_eip_i386:
+    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EIP",
+                 reg_value.GetAsUInt32());
+    m_context.Eip = reg_value.GetAsUInt32();
+    break;
+  case lldb_eflags_i386:
+    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EFLAGS",
+                 reg_value.GetAsUInt32());
+    m_context.EFlags = reg_value.GetAsUInt32();
+    break;
+  default:
+    WINWARN_IFALL(WINDOWS_LOG_REGISTERS,
+                  "Write value 0x%x to unknown register %u",
+                  reg_value.GetAsUInt32(), reg);
+  }
+
+  // Physically update the registers in the target process.
+  TargetThreadWindows &wthread = static_cast<TargetThreadWindows &>(m_thread);
+  return ::SetThreadContext(
+      wthread.GetHostThread().GetNativeThread().GetSystemHandle(), &m_context);
+}
+
 bool RegisterContextWindows_x86::ReadRegisterHelper(
     DWORD flags_required, const char *reg_name, DWORD value,
     RegisterValue &reg_value) const {
   if ((m_context.ContextFlags & flags_required) != flags_required) {
     WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Thread context doesn't have %s",
                  reg_name);
     return false;
   }
   WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Read value 0x%lx from %s", value,
                reg_name);
   reg_value.SetUInt32(value);
   return true;
 }

source/Plugins/Process/Windows/Live/CMakeLists.txt

-include_directories(.)
-include_directories(../../Utility)
-include_directories(../Common)
-
-set(PROC_WINDOWS_SOURCES
-  DebuggerThread.cpp
-  LocalDebugDelegate.cpp
-  ProcessWindowsLive.cpp
-  TargetThreadWindowsLive.cpp
-  )
-
-if (CMAKE_SIZEOF_VOID_P EQUAL 4)
-  set(PROC_WINDOWS_SOURCES ${PROC_WINDOWS_SOURCES}
-    x86/RegisterContextWindowsLive_x86.cpp
-    )
-elseif (CMAKE_SIZEOF_VOID_P EQUAL 8)
-  set(PROC_WINDOWS_SOURCES ${PROC_WINDOWS_SOURCES}
-    x64/RegisterContextWindowsLive_x64.cpp
-    )
-endif()
-
-add_lldb_library(lldbPluginProcessWindows
-  ${PROC_WINDOWS_SOURCES}
-  )

source/Plugins/Process/Windows/Live/DebuggerThread.h

-//===-- DebuggerThread.h ----------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#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/Predicate.h"
-#include "lldb/Host/windows/windows.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();
-
-  Error DebugLaunch(const ProcessLaunchInfo &launch_info);
-  Error 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;
-  }
-
-  Error 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

source/Plugins/Process/Windows/Live/DebuggerThread.cpp

-//===-- DebuggerThread.DebuggerThread --------------------------------------*-
-//C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "DebuggerThread.h"
-#include "ExceptionRecord.h"
-#include "IDebugDelegate.h"
-
-#include "lldb/Core/Error.h"
-#include "lldb/Core/Log.h"
-#include "lldb/Core/ModuleSpec.h"
-#include "lldb/Host/FileSpec.h"
-#include "lldb/Host/Predicate.h"
-#include "lldb/Host/ThisThread.h"
-#include "lldb/Host/ThreadLauncher.h"
-#include "lldb/Host/windows/HostProcessWindows.h"
-#include "lldb/Host/windows/HostThreadWindows.h"
-#include "lldb/Host/windows/ProcessLauncherWindows.h"
-#include "lldb/Target/Process.h"
-#include "lldb/Target/ProcessLaunchInfo.h"
-
-#include "Plugins/Process/Windows/Common/ProcessWindowsLog.h"
-
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/Support/ConvertUTF.h"
-#include "llvm/Support/raw_ostream.h"
-
-using namespace lldb;
-using namespace lldb_private;
-
-namespace {
-struct DebugLaunchContext {
-  DebugLaunchContext(DebuggerThread *thread,
-                     const ProcessLaunchInfo &launch_info)
-      : m_thread(thread), m_launch_info(launch_info) {}
-  DebuggerThread *m_thread;
-  ProcessLaunchInfo m_launch_info;
-};
-
-struct DebugAttachContext {
-  DebugAttachContext(DebuggerThread *thread, lldb::pid_t pid,
-                     const ProcessAttachInfo &attach_info)
-      : m_thread(thread), m_pid(pid), m_attach_info(attach_info) {}
-  DebuggerThread *m_thread;
-  lldb::pid_t m_pid;
-  ProcessAttachInfo m_attach_info;
-};
-}
-
-DebuggerThread::DebuggerThread(DebugDelegateSP debug_delegate)
-    : m_debug_delegate(debug_delegate), m_pid_to_detach(0),
-      m_is_shutting_down(false) {
-  m_debugging_ended_event = ::CreateEvent(nullptr, TRUE, FALSE, nullptr);
-}
-
-DebuggerThread::~DebuggerThread() { ::CloseHandle(m_debugging_ended_event); }
-
-Error DebuggerThread::DebugLaunch(const ProcessLaunchInfo &launch_info) {
-  WINLOG_IFALL(WINDOWS_LOG_PROCESS,
-               "DebuggerThread::DebugLaunch launching '%s'",
-               launch_info.GetExecutableFile().GetPath().c_str());
-
-  Error error;
-  DebugLaunchContext *context = new DebugLaunchContext(this, launch_info);
-  HostThread slave_thread(ThreadLauncher::LaunchThread(
-      "lldb.plugin.process-windows.slave[?]", DebuggerThreadLaunchRoutine,
-      context, &error));
-
-  if (!error.Success()) {
-    WINERR_IFALL(WINDOWS_LOG_PROCESS,
-                 "DebugLaunch couldn't launch debugger thread.  %s",
-                 error.AsCString());
-  }
-
-  return error;
-}
-
-Error DebuggerThread::DebugAttach(lldb::pid_t pid,
-                                  const ProcessAttachInfo &attach_info) {
-  WINLOG_IFALL(WINDOWS_LOG_PROCESS,
-               "DebuggerThread::DebugAttach attaching to '%llu'", pid);
-
-  Error error;
-  DebugAttachContext *context = new DebugAttachContext(this, pid, attach_info);
-  HostThread slave_thread(ThreadLauncher::LaunchThread(
-      "lldb.plugin.process-windows.slave[?]", DebuggerThreadAttachRoutine,
-      context, &error));
-
-  if (!error.Success()) {
-    WINERR_IFALL(WINDOWS_LOG_PROCESS,
-                 "DebugAttach couldn't attach to process '%llu'.  %s", pid,
-                 error.AsCString());
-  }
-
-  return error;
-}
-
-lldb::thread_result_t DebuggerThread::DebuggerThreadLaunchRoutine(void *data) {
-  DebugLaunchContext *context = static_cast<DebugLaunchContext *>(data);
-  lldb::thread_result_t result =
-      context->m_thread->DebuggerThreadLaunchRoutine(context->m_launch_info);
-  delete context;
-  return result;
-}
-
-lldb::thread_result_t DebuggerThread::DebuggerThreadAttachRoutine(void *data) {
-  DebugAttachContext *context = static_cast<DebugAttachContext *>(data);
-  lldb::thread_result_t result = context->m_thread->DebuggerThreadAttachRoutine(
-      context->m_pid, context->m_attach_info);
-  delete context;
-  return result;
-}
-
-lldb::thread_result_t DebuggerThread::DebuggerThreadLaunchRoutine(
-    const ProcessLaunchInfo &launch_info) {
-  // Grab a shared_ptr reference to this so that we know it won't get deleted
-  // until after the
-  // thread routine has exited.
-  std::shared_ptr<DebuggerThread> this_ref(shared_from_this());
-
-  WINLOG_IFALL(WINDOWS_LOG_PROCESS,
-               "DebuggerThread preparing to launch '%s' on background thread.",
-               launch_info.GetExecutableFile().GetPath().c_str());
-
-  Error error;
-  ProcessLauncherWindows launcher;
-  HostProcess process(launcher.LaunchProcess(launch_info, error));
-  // If we couldn't create the process, notify waiters immediately.  Otherwise
-  // enter the debug
-  // loop and wait until we get the create process debug notification.  Note
-  // that if the process
-  // was created successfully, we can throw away the process handle we got from
-  // CreateProcess
-  // because Windows will give us another (potentially more useful?) handle when
-  // it sends us the
-  // CREATE_PROCESS_DEBUG_EVENT.
-  if (error.Success())
-    DebugLoop();
-  else
-    m_debug_delegate->OnDebuggerError(error, 0);
-
-  return 0;
-}
-
-lldb::thread_result_t DebuggerThread::DebuggerThreadAttachRoutine(
-    lldb::pid_t pid, const ProcessAttachInfo &attach_info) {
-  // Grab a shared_ptr reference to this so that we know it won't get deleted
-  // until after the
-  // thread routine has exited.
-  std::shared_ptr<DebuggerThread> this_ref(shared_from_this());
-
-  WINLOG_IFALL(WINDOWS_LOG_PROCESS, "DebuggerThread preparing to attach to "
-                                    "process '%llu' on background thread.",
-               pid);
-
-  if (!DebugActiveProcess((DWORD)pid)) {
-    Error error(::GetLastError(), eErrorTypeWin32);
-    m_debug_delegate->OnDebuggerError(error, 0);
-    return 0;
-  }
-
-  // The attach was successful, enter the debug loop.  From here on out, this is
-  // no different than
-  // a create process operation, so all the same comments in DebugLaunch should
-  // apply from this
-  // point out.
-  DebugLoop();
-
-  return 0;
-}
-
-Error DebuggerThread::StopDebugging(bool terminate) {
-  Error error;
-
-  lldb::pid_t pid = m_process.GetProcessId();
-
-  WINLOG_IFALL(WINDOWS_LOG_PROCESS,
-               "StopDebugging('%s') called (inferior=%I64u).",
-               (terminate ? "true" : "false"), pid);
-
-  // Set m_is_shutting_down to true if it was false.  Return if it was already
-  // true.
-  bool expected = false;
-  if (!m_is_shutting_down.compare_exchange_strong(expected, true))
-    return error;
-
-  // Make a copy of the process, since the termination sequence will reset
-  // DebuggerThread's internal copy and it needs to remain open for the Wait
-  // operation.
-  HostProcess process_copy = m_process;
-  lldb::process_t handle = m_process.GetNativeProcess().GetSystemHandle();
-
-  if (terminate) {
-    // Initiate the termination before continuing the exception, so that the
-    // next debug
-    // event we get is the exit process event, and not some other event.
-    BOOL terminate_suceeded = TerminateProcess(handle, 0);
-    WINLOG_IFALL(WINDOWS_LOG_PROCESS, "StopDebugging called "
-                                      "TerminateProcess(0x%p, 0) "
-                                      "(inferior=%I64u), success='%s'",
-                 handle, pid, (terminate_suceeded ? "true" : "false"));
-  }
-
-  // If we're stuck waiting for an exception to continue (e.g. the user is at a
-  // breakpoint
-  // messing around in the debugger), continue it now.  But only AFTER calling
-  // TerminateProcess
-  // to make sure that the very next call to WaitForDebugEvent is an exit
-  // process event.
-  if (m_active_exception.get()) {
-    WINLOG_IFANY(WINDOWS_LOG_PROCESS | WINDOWS_LOG_EXCEPTION,
-                 "StopDebugging masking active exception");
-
-    ContinueAsyncException(ExceptionResult::MaskException);
-  }
-
-  if (!terminate) {
-    // Indicate that we want to detach.
-    m_pid_to_detach = GetProcess().GetProcessId();
-
-    // Force a fresh break so that the detach can happen from the debugger
-    // thread.
-    if (!::DebugBreakProcess(
-            GetProcess().GetNativeProcess().GetSystemHandle())) {
-      error.SetError(::GetLastError(), eErrorTypeWin32);
-    }
-  }
-
-  WINLOG_IFALL(
-      WINDOWS_LOG_PROCESS,
-      "StopDebugging waiting for detach from process %llu to complete.", pid);
-
-  DWORD wait_result = WaitForSingleObject(m_debugging_ended_event, 5000);
-  if (wait_result != WAIT_OBJECT_0) {
-    error.SetError(GetLastError(), eErrorTypeWin32);
-    WINERR_IFALL(WINDOWS_LOG_PROCESS,
-                 "StopDebugging WaitForSingleObject(0x%p, 5000) returned %lu",
-                 m_debugging_ended_event, wait_result);
-  } else {
-    WINLOG_IFALL(
-        WINDOWS_LOG_PROCESS,
-        "StopDebugging detach from process %llu completed successfully.", pid);
-  }
-
-  if (!error.Success()) {
-    WINERR_IFALL(WINDOWS_LOG_PROCESS, "StopDebugging encountered an error "
-                                      "while trying to stop process %llu.  %s",
-                 pid, error.AsCString());
-  }
-  return error;
-}
-
-void DebuggerThread::ContinueAsyncException(ExceptionResult result) {
-  if (!m_active_exception.get())
-    return;
-
-  WINLOG_IFANY(
-      WINDOWS_LOG_PROCESS | WINDOWS_LOG_EXCEPTION,
-      "ContinueAsyncException called for inferior process %I64u, broadcasting.",
-      m_process.GetProcessId());
-
-  m_active_exception.reset();
-  m_exception_pred.SetValue(result, eBroadcastAlways);
-}
-
-void DebuggerThread::FreeProcessHandles() {
-  m_process = HostProcess();
-  m_main_thread = HostThread();
-  if (m_image_file) {
-    ::CloseHandle(m_image_file);
-    m_image_file = nullptr;
-  }
-}
-
-void DebuggerThread::DebugLoop() {
-  DEBUG_EVENT dbe = {};
-  bool should_debug = true;
-  WINLOG_IFALL(WINDOWS_LOG_EVENT, "Entering WaitForDebugEvent loop");
-  while (should_debug) {
-    WINLOGD_IFALL(WINDOWS_LOG_EVENT, "Calling WaitForDebugEvent");
-    BOOL wait_result = WaitForDebugEvent(&dbe, INFINITE);
-    if (wait_result) {
-      DWORD continue_status = DBG_CONTINUE;
-      switch (dbe.dwDebugEventCode) {
-      case EXCEPTION_DEBUG_EVENT: {
-        ExceptionResult status =
-            HandleExceptionEvent(dbe.u.Exception, dbe.dwThreadId);
-
-        if (status == ExceptionResult::MaskException)
-          continue_status = DBG_CONTINUE;
-        else if (status == ExceptionResult::SendToApplication)
-          continue_status = DBG_EXCEPTION_NOT_HANDLED;
-
-        break;
-      }
-      case CREATE_THREAD_DEBUG_EVENT:
-        continue_status =
-            HandleCreateThreadEvent(dbe.u.CreateThread, dbe.dwThreadId);
-        break;
-      case CREATE_PROCESS_DEBUG_EVENT:
-        continue_status =
-            HandleCreateProcessEvent(dbe.u.CreateProcessInfo, dbe.dwThreadId);
-        break;
-      case EXIT_THREAD_DEBUG_EVENT:
-        continue_status =
-            HandleExitThreadEvent(dbe.u.ExitThread, dbe.dwThreadId);
-        break;
-      case EXIT_PROCESS_DEBUG_EVENT:
-        continue_status =
-            HandleExitProcessEvent(dbe.u.ExitProcess, dbe.dwThreadId);
-        should_debug = false;
-        break;
-      case LOAD_DLL_DEBUG_EVENT:
-        continue_status = HandleLoadDllEvent(dbe.u.LoadDll, dbe.dwThreadId);
-        break;
-      case UNLOAD_DLL_DEBUG_EVENT:
-        continue_status = HandleUnloadDllEvent(dbe.u.UnloadDll, dbe.dwThreadId);
-        break;
-      case OUTPUT_DEBUG_STRING_EVENT:
-        continue_status = HandleODSEvent(dbe.u.DebugString, dbe.dwThreadId);
-        break;
-      case RIP_EVENT:
-        continue_status = HandleRipEvent(dbe.u.RipInfo, dbe.dwThreadId);
-        if (dbe.u.RipInfo.dwType == SLE_ERROR)
-          should_debug = false;
-        break;
-      }
-
-      WINLOGD_IFALL(
-          WINDOWS_LOG_EVENT,
-          "DebugLoop calling ContinueDebugEvent(%lu, %lu, %lu) on thread %lu.",
-          dbe.dwProcessId, dbe.dwThreadId, continue_status,
-          ::GetCurrentThreadId());
-
-      ::ContinueDebugEvent(dbe.dwProcessId, dbe.dwThreadId, continue_status);
-
-      if (m_detached) {
-        should_debug = false;
-      }
-    } else {
-      WINERR_IFALL(
-          WINDOWS_LOG_EVENT,
-          "DebugLoop returned FALSE from WaitForDebugEvent.  Error = %lu",
-          ::GetLastError());
-
-      should_debug = false;
-    }
-  }
-  FreeProcessHandles();
-
-  WINLOG_IFALL(WINDOWS_LOG_EVENT, "WaitForDebugEvent loop completed, exiting.");
-  SetEvent(m_debugging_ended_event);
-}
-
-ExceptionResult
-DebuggerThread::HandleExceptionEvent(const EXCEPTION_DEBUG_INFO &info,
-                                     DWORD thread_id) {
-  if (m_is_shutting_down) {
-    // A breakpoint that occurs while `m_pid_to_detach` is non-zero is a magic
-    // exception that
-    // we use simply to wake up the DebuggerThread so that we can close out the
-    // debug loop.
-    if (m_pid_to_detach != 0 &&
-        info.ExceptionRecord.ExceptionCode == EXCEPTION_BREAKPOINT) {
-      WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_EXCEPTION |
-                       WINDOWS_LOG_PROCESS,
-                   "Breakpoint exception is cue to detach from process 0x%lx",
-                   m_pid_to_detach.load());
-      ::DebugActiveProcessStop(m_pid_to_detach);
-      m_detached = true;
-    }
-
-    // Don't perform any blocking operations while we're shutting down.  That
-    // will
-    // cause TerminateProcess -> WaitForSingleObject to time out.
-    return ExceptionResult::SendToApplication;
-  }
-
-  bool first_chance = (info.dwFirstChance != 0);
-
-  m_active_exception.reset(
-      new ExceptionRecord(info.ExceptionRecord, thread_id));
-  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_EXCEPTION,
-               "HandleExceptionEvent encountered %s chance exception 0x%lx on "
-               "thread 0x%lx",
-               first_chance ? "first" : "second",
-               info.ExceptionRecord.ExceptionCode, thread_id);
-
-  ExceptionResult result =
-      m_debug_delegate->OnDebugException(first_chance, *m_active_exception);
-  m_exception_pred.SetValue(result, eBroadcastNever);
-
-  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_EXCEPTION,
-               "DebuggerThread::HandleExceptionEvent waiting for ExceptionPred "
-               "!= BreakInDebugger");
-
-  m_exception_pred.WaitForValueNotEqualTo(ExceptionResult::BreakInDebugger,
-                                          result);
-
-  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_EXCEPTION,
-               "DebuggerThread::HandleExceptionEvent got ExceptionPred = %u",
-               m_exception_pred.GetValue());
-
-  return result;
-}
-
-DWORD
-DebuggerThread::HandleCreateThreadEvent(const CREATE_THREAD_DEBUG_INFO &info,
-                                        DWORD thread_id) {
-  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_THREAD,
-               "HandleCreateThreadEvent Thread 0x%lx spawned in process %llu",
-               thread_id, m_process.GetProcessId());
-  HostThread thread(info.hThread);
-  thread.GetNativeThread().SetOwnsHandle(false);
-  m_debug_delegate->OnCreateThread(thread);
-  return DBG_CONTINUE;
-}
-
-DWORD
-DebuggerThread::HandleCreateProcessEvent(const CREATE_PROCESS_DEBUG_INFO &info,
-                                         DWORD thread_id) {
-  uint32_t process_id = ::GetProcessId(info.hProcess);
-
-  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_PROCESS,
-               "HandleCreateProcessEvent process %u spawned", process_id);
-
-  std::string thread_name;
-  llvm::raw_string_ostream name_stream(thread_name);
-  name_stream << "lldb.plugin.process-windows.slave[" << process_id << "]";
-  name_stream.flush();
-  ThisThread::SetName(thread_name.c_str());
-
-  // info.hProcess and info.hThread are closed automatically by Windows when
-  // EXIT_PROCESS_DEBUG_EVENT is received.
-  m_process = HostProcess(info.hProcess);
-  ((HostProcessWindows &)m_process.GetNativeProcess()).SetOwnsHandle(false);
-  m_main_thread = HostThread(info.hThread);
-  m_main_thread.GetNativeThread().SetOwnsHandle(false);
-  m_image_file = info.hFile;
-
-  lldb::addr_t load_addr = reinterpret_cast<lldb::addr_t>(info.lpBaseOfImage);
-  m_debug_delegate->OnDebuggerConnected(load_addr);
-
-  return DBG_CONTINUE;
-}
-
-DWORD
-DebuggerThread::HandleExitThreadEvent(const EXIT_THREAD_DEBUG_INFO &info,
-                                      DWORD thread_id) {
-  WINLOG_IFANY(
-      WINDOWS_LOG_EVENT | WINDOWS_LOG_THREAD,
-      "HandleExitThreadEvent Thread %lu exited with code %lu in process %llu",
-      thread_id, info.dwExitCode, m_process.GetProcessId());
-  m_debug_delegate->OnExitThread(thread_id, info.dwExitCode);
-  return DBG_CONTINUE;
-}
-
-DWORD
-DebuggerThread::HandleExitProcessEvent(const EXIT_PROCESS_DEBUG_INFO &info,
-                                       DWORD thread_id) {
-  WINLOG_IFANY(WINDOWS_LOG_EVENT | WINDOWS_LOG_THREAD,
-               "HandleExitProcessEvent process %llu exited with code %lu",
-               m_process.GetProcessId(), info.dwExitCode);
-
-  m_debug_delegate->OnExitProcess(info.dwExitCode);
-
-  FreeProcessHandles();
-  return DBG_CONTINUE;
-}
-
-DWORD
-DebuggerThread::HandleLoadDllEvent(const LOAD_DLL_DEBUG_INFO &info,
-                                   DWORD thread_id) {
-  if (info.hFile == nullptr) {
-    // Not sure what this is, so just ignore it.
-    WINWARN_IFALL(WINDOWS_LOG_EVENT, "Inferior %llu - HandleLoadDllEvent has "
-                                     "a NULL file handle, returning...",
-                  m_process.GetProcessId());
-    return DBG_CONTINUE;
-  }
-
-  std::vector<wchar_t> buffer(1);
-  DWORD required_size =
-      GetFinalPathNameByHandleW(info.hFile, &buffer[0], 0, VOLUME_NAME_DOS);
-  if (required_size > 0) {
-    buffer.resize(required_size + 1);
-    required_size = GetFinalPathNameByHandleW(info.hFile, &buffer[0],
-                                              required_size, VOLUME_NAME_DOS);
-    std::string path_str_utf8;
-    llvm::convertWideToUTF8(buffer.data(), path_str_utf8);
-    llvm::StringRef path_str = path_str_utf8;
-    const char *path = path_str.data();
-    if (path_str.startswith("\\\\?\\"))
-      path += 4;
-
-    FileSpec file_spec(path, false);
-    ModuleSpec module_spec(file_spec);
-    lldb::addr_t load_addr = reinterpret_cast<lldb::addr_t>(info.lpBaseOfDll);
-
-    WINLOG_IFALL(WINDOWS_LOG_EVENT, "Inferior %I64u - HandleLoadDllEvent DLL "
-                                    "'%s' loaded at address 0x%p...",
-                 m_process.GetProcessId(), path, info.lpBaseOfDll);
-
-    m_debug_delegate->OnLoadDll(module_spec, load_addr);
-  } else {
-    WINERR_IFALL(WINDOWS_LOG_EVENT, "Inferior %llu - HandleLoadDllEvent Error "
-                                    "%lu occurred calling "
-                                    "GetFinalPathNameByHandle",
-                 m_process.GetProcessId(), ::GetLastError());
-  }
-  // Windows does not automatically close info.hFile, so we need to do it.
-  ::CloseHandle(info.hFile);
-  return DBG_CONTINUE;
-}
-
-DWORD
-DebuggerThread::HandleUnloadDllEvent(const UNLOAD_DLL_DEBUG_INFO &info,
-                                     DWORD thread_id) {
-  WINLOG_IFALL(WINDOWS_LOG_EVENT,
-               "HandleUnloadDllEvent process %llu unloading DLL at addr 0x%p.",
-               m_process.GetProcessId(), info.lpBaseOfDll);
-
-  m_debug_delegate->OnUnloadDll(
-      reinterpret_cast<lldb::addr_t>(info.lpBaseOfDll));
-  return DBG_CONTINUE;
-}
-
-DWORD
-DebuggerThread::HandleODSEvent(const OUTPUT_DEBUG_STRING_INFO &info,
-                               DWORD thread_id) {
-  return DBG_CONTINUE;
-}
-
-DWORD
-DebuggerThread::HandleRipEvent(const RIP_INFO &info, DWORD thread_id) {
-  WINERR_IFALL(WINDOWS_LOG_EVENT, "HandleRipEvent encountered error %lu "
-                                  "(type=%lu) in process %llu thread %lu",
-               info.dwError, info.dwType, m_process.GetProcessId(), thread_id);
-
-  Error error(info.dwError, eErrorTypeWin32);
-  m_debug_delegate->OnDebuggerError(error, info.dwType);
-
-  return DBG_CONTINUE;
-}

source/Plugins/Process/Windows/Live/ForwardDecl.h

-//===-- ForwardDecl.h -------------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_Plugins_Process_Windows_ForwardDecl_H_
-#define liblldb_Plugins_Process_Windows_ForwardDecl_H_
-
-#include <memory>
-
-// ExceptionResult is returned by the debug delegate to specify how it processed
-// the exception.
-enum class ExceptionResult {
-  BreakInDebugger,  // Break in the debugger and give the user a chance to
-                    // interact with
-                    // the program before continuing.
-  MaskException,    // Eat the exception and don't let the application know it
-                    // occurred.
-  SendToApplication // Send the exception to the application to be handled as if
-                    // there were
-                    // no debugger attached.
-};
-
-namespace lldb_private {
-
-class ProcessWindows;
-
-class IDebugDelegate;
-class DebuggerThread;
-class ExceptionRecord;
-
-typedef std::shared_ptr<IDebugDelegate> DebugDelegateSP;
-typedef std::shared_ptr<DebuggerThread> DebuggerThreadSP;
-typedef std::shared_ptr<ExceptionRecord> ExceptionRecordSP;
-typedef std::unique_ptr<ExceptionRecord> ExceptionRecordUP;
-}
-
-#endif
 

source/Plugins/Process/Windows/Live/IDebugDelegate.h

-//===-- IDebugDelegate.h ----------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_Plugins_Process_Windows_IDebugDelegate_H_
-#define liblldb_Plugins_Process_Windows_IDebugDelegate_H_
-
-#include "ForwardDecl.h"
-#include "lldb/lldb-forward.h"
-#include "lldb/lldb-types.h"
-#include <string>
-
-namespace lldb_private {
-class Error;
-class HostThread;
-
-//----------------------------------------------------------------------
-// IDebugDelegate
-//
-// IDebugDelegate defines an interface which allows implementors to receive
-// notification of events that happen in a debugged process.
-//----------------------------------------------------------------------
-class IDebugDelegate {
-public:
-  virtual ~IDebugDelegate() {}
-
-  virtual void OnExitProcess(uint32_t exit_code) = 0;
-  virtual void OnDebuggerConnected(lldb::addr_t image_base) = 0;
-  virtual ExceptionResult OnDebugException(bool first_chance,
-                                           const ExceptionRecord &record) = 0;
-  virtual void OnCreateThread(const HostThread &thread) = 0;
-  virtual void OnExitThread(lldb::tid_t thread_id, uint32_t exit_code) = 0;
-  virtual void OnLoadDll(const ModuleSpec &module_spec,
-                         lldb::addr_t module_addr) = 0;
-  virtual void OnUnloadDll(lldb::addr_t module_addr) = 0;
-  virtual void OnDebugString(const std::string &string) = 0;
-  virtual void OnDebuggerError(const Error &error, uint32_t type) = 0;
-};
-}
-
-#endif

source/Plugins/Process/Windows/Live/LocalDebugDelegate.h

-//===-- LocalDebugDelegate.h ------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_Plugins_Process_Windows_LocalDebugDelegate_H_
-#define liblldb_Plugins_Process_Windows_LocalDebugDelegate_H_
-
-#include <memory>
-
-#include "IDebugDelegate.h"
-
-#include "lldb/lldb-forward.h"
-
-namespace lldb_private {
-
-class ProcessWindowsLive;
-typedef std::shared_ptr<ProcessWindowsLive> ProcessWindowsLiveSP;
-
-//----------------------------------------------------------------------
-// LocalDebugDelegate
-//
-// LocalDebugDelegate creates a connection between a ProcessWindowsLive and the
-// debug driver.  This serves to decouple ProcessWindowsLive from the debug
-// driver.
-// It would be possible to get a similar decoupling by just having
-// ProcessWindowsLive implement this interface directly.  There are two reasons
-// why
-// we don't do this:
-//
-// 1) In the future when we add support for local debugging through LLGS, and we
-//    go through the Native*Protocol interface, it is likely we will need the
-//    additional flexibility provided by this sort of adapter pattern.
-// 2) LLDB holds a shared_ptr to the ProcessWindows, and our driver thread
-//    needs access to it as well.  To avoid a race condition, we want to make
-//    sure that we're also holding onto a shared_ptr.
-//    lldb_private::Process supports enable_shared_from_this, but that gives us
-//    a ProcessSP (which is exactly what we are trying to decouple from the
-//    driver), so this adapter serves as a way to transparently hold the
-//    ProcessSP while still keeping it decoupled from the driver.
-//----------------------------------------------------------------------
-class LocalDebugDelegate : public IDebugDelegate {
-public:
-  explicit LocalDebugDelegate(lldb::ProcessWP process);
-
-  void OnExitProcess(uint32_t exit_code) override;
-  void OnDebuggerConnected(lldb::addr_t image_base) override;
-  ExceptionResult OnDebugException(bool first_chance,
-                                   const ExceptionRecord &record) override;
-  void OnCreateThread(const HostThread &thread) override;
-  void OnExitThread(lldb::tid_t thread_id, uint32_t exit_code) override;
-  void OnLoadDll(const lldb_private::ModuleSpec &module_spec,
-                 lldb::addr_t module_addr) override;
-  void OnUnloadDll(lldb::addr_t module_addr) override;
-  void OnDebugString(const std::string &message) override;
-  void OnDebuggerError(const Error &error, uint32_t type) override;
-
-private:
-  ProcessWindowsLiveSP GetProcessPointer();
-
-  lldb::ProcessWP m_process;
-};
-}
-
-#endif

source/Plugins/Process/Windows/Live/LocalDebugDelegate.cpp

-//===-- LocalDebugDelegate.cpp ----------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "LocalDebugDelegate.h"
-#include "ProcessWindowsLive.h"
-
-using namespace lldb;
-using namespace lldb_private;
-
-LocalDebugDelegate::LocalDebugDelegate(ProcessWP process)
-    : m_process(process) {}
-
-void LocalDebugDelegate::OnExitProcess(uint32_t exit_code) {
-  if (ProcessWindowsLiveSP process = GetProcessPointer())
-    process->OnExitProcess(exit_code);
-}
-
-void LocalDebugDelegate::OnDebuggerConnected(lldb::addr_t image_base) {
-  if (ProcessWindowsLiveSP process = GetProcessPointer())
-    process->OnDebuggerConnected(image_base);
-}
-
-ExceptionResult
-LocalDebugDelegate::OnDebugException(bool first_chance,
-                                     const ExceptionRecord &record) {
-  if (ProcessWindowsLiveSP process = GetProcessPointer())
-    return process->OnDebugException(first_chance, record);
-  else
-    return ExceptionResult::MaskException;
-}
-
-void LocalDebugDelegate::OnCreateThread(const HostThread &thread) {
-  if (ProcessWindowsLiveSP process = GetProcessPointer())
-    process->OnCreateThread(thread);
-}
-
-void LocalDebugDelegate::OnExitThread(lldb::tid_t thread_id,
-                                      uint32_t exit_code) {
-  if (ProcessWindowsLiveSP process = GetProcessPointer())
-    process->OnExitThread(thread_id, exit_code);
-}
-
-void LocalDebugDelegate::OnLoadDll(const lldb_private::ModuleSpec &module_spec,
-                                   lldb::addr_t module_addr) {
-  if (ProcessWindowsLiveSP process = GetProcessPointer())
-    process->OnLoadDll(module_spec, module_addr);
-}
-
-void LocalDebugDelegate::OnUnloadDll(lldb::addr_t module_addr) {
-  if (ProcessWindowsLiveSP process = GetProcessPointer())
-    process->OnUnloadDll(module_addr);
-}
-
-void LocalDebugDelegate::OnDebugString(const std::string &string) {
-  if (ProcessWindowsLiveSP process = GetProcessPointer())
-    process->OnDebugString(string);
-}
-
-void LocalDebugDelegate::OnDebuggerError(const Error &error, uint32_t type) {
-  if (ProcessWindowsLiveSP process = GetProcessPointer())
-    process->OnDebuggerError(error, type);
-}
-
-ProcessWindowsLiveSP LocalDebugDelegate::GetProcessPointer() {
-  ProcessSP process = m_process.lock();
-  return std::static_pointer_cast<ProcessWindowsLive>(process);
-}

source/Plugins/Process/Windows/Live/ProcessWindowsLive.h

-//===-- ProcessWindowsLive.h ------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_Plugins_Process_Windows_Live_ProcessWindowsLive_H_
-#define liblldb_Plugins_Process_Windows_Live_ProcessWindowsLive_H_
-
-// C Includes
-
-// C++ Includes
-#include <memory>
-#include <queue>
-
-// Other libraries and framework includes
-#include "ForwardDecl.h"
-#include "IDebugDelegate.h"
-#include "lldb/Core/Error.h"
-#include "lldb/Host/HostThread.h"
-#include "lldb/Target/Process.h"
-#include "lldb/lldb-forward.h"
-
-#include "llvm/Support/Mutex.h"
-
-#include "Plugins/Process/Windows/Common/ProcessWindows.h"
-
-class ProcessMonitor;
-
-namespace lldb_private {
-class HostProcess;
-class ProcessWindowsData;
-
-class ProcessWindowsLive : public lldb_private::ProcessWindows,
-                           public lldb_private::IDebugDelegate {
-public:
-  //------------------------------------------------------------------
-  // Static functions.
-  //------------------------------------------------------------------
-  static lldb::ProcessSP CreateInstance(lldb::TargetSP target_sp,
-                                        lldb::ListenerSP listener_sp,
-                                        const lldb_private::FileSpec *);
-
-  static void Initialize();
-
-  static void Terminate();
-
-  static lldb_private::ConstString GetPluginNameStatic();
-
-  static const char *GetPluginDescriptionStatic();
-
-  //------------------------------------------------------------------
-  // Constructors and destructors
-  //------------------------------------------------------------------
-  ProcessWindowsLive(lldb::TargetSP target_sp, lldb::ListenerSP listener_sp);
-
-  ~ProcessWindowsLive();
-
-  // lldb_private::Process overrides
-  lldb_private::ConstString GetPluginName() override;
-  uint32_t GetPluginVersion() override;
-
-  lldb_private::Error
-  EnableBreakpointSite(lldb_private::BreakpointSite *bp_site) override;
-  lldb_private::Error
-  DisableBreakpointSite(lldb_private::BreakpointSite *bp_site) override;
-
-  lldb_private::Error DoDetach(bool keep_stopped) override;
-  lldb_private::Error
-  DoLaunch(lldb_private::Module *exe_module,
-           lldb_private::ProcessLaunchInfo &launch_info) override;
-  lldb_private::Error DoAttachToProcessWithID(
-      lldb::pid_t pid,
-      const lldb_private::ProcessAttachInfo &attach_info) override;
-  lldb_private::Error DoResume() override;
-  lldb_private::Error DoDestroy() override;
-  lldb_private::Error DoHalt(bool &caused_stop) override;
-
-  void DidLaunch() override;
-  void DidAttach(lldb_private::ArchSpec &arch_spec) override;
-
-  void RefreshStateAfterStop() override;
-
-  bool CanDebug(lldb::TargetSP target_sp,
-                bool plugin_specified_by_name) override;
-  bool DestroyRequiresHalt() override { return false; }
-  bool UpdateThreadList(lldb_private::ThreadList &old_thread_list,
-                        lldb_private::ThreadList &new_thread_list) override;
-  bool IsAlive() override;
-
-  size_t DoReadMemory(lldb::addr_t vm_addr, void *buf, size_t size,
-                      lldb_private::Error &error) override;
-  size_t DoWriteMemory(lldb::addr_t vm_addr, const void *buf, size_t size,
-                       lldb_private::Error &error) override;
-  lldb_private::Error
-  GetMemoryRegionInfo(lldb::addr_t vm_addr,
-                      lldb_private::MemoryRegionInfo &info) override;
-
-  // IDebugDelegate overrides.
-  void OnExitProcess(uint32_t exit_code) override;
-  void OnDebuggerConnected(lldb::addr_t image_base) override;
-  ExceptionResult
-  OnDebugException(bool first_chance,
-                   const lldb_private::ExceptionRecord &record) override;
-  void OnCreateThread(const lldb_private::HostThread &thread) override;
-  void OnExitThread(lldb::tid_t thread_id, uint32_t exit_code) override;
-  void OnLoadDll(const lldb_private::ModuleSpec &module_spec,
-                 lldb::addr_t module_addr) override;
-  void OnUnloadDll(lldb::addr_t module_addr) override;
-  void OnDebugString(const std::string &string) override;
-  void OnDebuggerError(const lldb_private::Error &error,
-                       uint32_t type) override;
-
-private:
-  lldb_private::Error
-  WaitForDebuggerConnection(lldb_private::DebuggerThreadSP debugger,
-                            lldb_private::HostProcess &process);
-
-  llvm::sys::Mutex m_mutex;
-
-  // Data for the active debugging session.
-  std::unique_ptr<lldb_private::ProcessWindowsData> m_session_data;
-};
-}
-
-#endif // liblldb_Plugins_Process_Windows_Live_ProcessWindowsLive_H_

source/Plugins/Process/Windows/Live/ProcessWindowsLive.cpp

-//===-- ProcessWindowsLive.cpp ----------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-// Windows includes
-#include "lldb/Host/windows/windows.h"
-#include <psapi.h>
-
-// C++ Includes
-#include <list>
-#include <mutex>
-#include <set>
-#include <vector>
-
-// Other libraries and framework includes
-#include "lldb/Core/Module.h"
-#include "lldb/Core/ModuleSpec.h"
-#include "lldb/Core/PluginManager.h"
-#include "lldb/Core/Section.h"
-#include "lldb/Core/State.h"
-#include "lldb/Host/Host.h"
-#include "lldb/Host/HostNativeProcessBase.h"
-#include "lldb/Host/HostNativeThreadBase.h"
-#include "lldb/Host/HostProcess.h"
-#include "lldb/Host/MonitoringProcessLauncher.h"
-#include "lldb/Host/ThreadLauncher.h"
-#include "lldb/Host/windows/HostThreadWindows.h"
-#include "lldb/Host/windows/ProcessLauncherWindows.h"
-#include "lldb/Symbol/ObjectFile.h"
-#include "lldb/Target/DynamicLoader.h"
-#include "lldb/Target/FileAction.h"
-#include "lldb/Target/MemoryRegionInfo.h"
-#include "lldb/Target/RegisterContext.h"
-#include "lldb/Target/StopInfo.h"
-#include "lldb/Target/Target.h"
-
-#include "Plugins/Process/Windows/Common/ProcessWindowsLog.h"
-
-#include "DebuggerThread.h"
-#include "ExceptionRecord.h"
-#include "LocalDebugDelegate.h"
-#include "ProcessWindowsLive.h"
-#include "TargetThreadWindowsLive.h"
-
-#include "llvm/Support/ConvertUTF.h"
-#include "llvm/Support/Format.h"
-#include "llvm/Support/raw_ostream.h"
-
-using namespace lldb;
-using namespace lldb_private;
-
-#define BOOL_STR(b) ((b) ? "true" : "false")
-
-namespace {
-
-std::string GetProcessExecutableName(HANDLE process_handle) {
-  std::vector<wchar_t> file_name;
-  DWORD file_name_size = MAX_PATH; // first guess, not an absolute limit
-  DWORD copied = 0;
-  do {
-    file_name_size *= 2;
-    file_name.resize(file_name_size);
-    copied = ::GetModuleFileNameExW(process_handle, NULL, file_name.data(),
-                                    file_name_size);
-  } while (copied >= file_name_size);
-  file_name.resize(copied);
-  std::string result;
-  llvm::convertWideToUTF8(file_name.data(), result);
-  return result;
-}
-
-std::string GetProcessExecutableName(DWORD pid) {
-  std::string file_name;
-  HANDLE process_handle =
-      ::OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pid);
-  if (process_handle != NULL) {
-    file_name = GetProcessExecutableName(process_handle);
-    ::CloseHandle(process_handle);
-  }
-  return file_name;
-}
-
-} // anonymous namespace
-
-namespace lldb_private {
-
-// We store a pointer to this class in the ProcessWindows, so that we don't
-// expose Windows
-// OS specific types and implementation details from a public header file.
-class ProcessWindowsData {
-public:
-  ProcessWindowsData(bool stop_at_entry) : m_stop_at_entry(stop_at_entry) {
-    m_initial_stop_event = ::CreateEvent(nullptr, TRUE, FALSE, nullptr);
-  }
-
-  ~ProcessWindowsData() { ::CloseHandle(m_initial_stop_event); }
-
-  lldb_private::Error m_launch_error;
-  lldb_private::DebuggerThreadSP m_debugger;
-  StopInfoSP m_pending_stop_info;
-  HANDLE m_initial_stop_event = nullptr;
-  bool m_initial_stop_received = false;
-  bool m_stop_at_entry;
-  std::map<lldb::tid_t, HostThread> m_new_threads;
-  std::set<lldb::tid_t> m_exited_threads;
-};
-}
-//------------------------------------------------------------------------------
-// Static functions.
-
-ProcessSP ProcessWindowsLive::CreateInstance(lldb::TargetSP target_sp,
-                                             lldb::ListenerSP listener_sp,
-                                             const FileSpec *) {
-  return ProcessSP(new ProcessWindowsLive(target_sp, listener_sp));
-}
-
-void ProcessWindowsLive::Initialize() {
-  static std::once_flag g_once_flag;
-
-  std::call_once(g_once_flag, []() {
-    PluginManager::RegisterPlugin(GetPluginNameStatic(),
-                                  GetPluginDescriptionStatic(), CreateInstance);
-  });
-}
-
-//------------------------------------------------------------------------------
-// Constructors and destructors.
-
-ProcessWindowsLive::ProcessWindowsLive(lldb::TargetSP target_sp,
-                                       lldb::ListenerSP listener_sp)
-    : lldb_private::ProcessWindows(target_sp, listener_sp) {}
-
-ProcessWindowsLive::~ProcessWindowsLive() {}
-
-void ProcessWindowsLive::Terminate() {}
-
-lldb_private::ConstString ProcessWindowsLive::GetPluginNameStatic() {
-  static ConstString g_name("windows");
-  return g_name;
-}
-
-const char *ProcessWindowsLive::GetPluginDescriptionStatic() {
-  return "Process plugin for Windows";
-}
-
-Error ProcessWindowsLive::EnableBreakpointSite(BreakpointSite *bp_site) {
-  WINLOG_IFALL(WINDOWS_LOG_BREAKPOINTS,
-               "EnableBreakpointSite called with bp_site 0x%p "
-               "(id=%d, addr=0x%llx)",
-               bp_site, bp_site->GetID(), bp_site->GetLoadAddress());
-
-  Error error = EnableSoftwareBreakpoint(bp_site);
-  if (!error.Success()) {
-    WINERR_IFALL(WINDOWS_LOG_BREAKPOINTS, "EnableBreakpointSite failed.  %s",
-                 error.AsCString());
-  }
-  return error;
-}
-
-Error ProcessWindowsLive::DisableBreakpointSite(BreakpointSite *bp_site) {
-  WINLOG_IFALL(WINDOWS_LOG_BREAKPOINTS,
-               "DisableBreakpointSite called with bp_site 0x%p "
-               "(id=%d, addr=0x%llx)",
-               bp_site, bp_site->GetID(), bp_site->GetLoadAddress());
-
-  Error error = DisableSoftwareBreakpoint(bp_site);
-
-  if (!error.Success()) {
-    WINERR_IFALL(WINDOWS_LOG_BREAKPOINTS, "DisableBreakpointSite failed.  %s",
-                 error.AsCString());
-  }
-  return error;
-}
-
-bool ProcessWindowsLive::UpdateThreadList(ThreadList &old_thread_list,
-                                          ThreadList &new_thread_list) {
-  // Add all the threads that were previously running and for which we did not
-  // detect a thread
-  // exited event.
-  int new_size = 0;
-  int continued_threads = 0;
-  int exited_threads = 0;
-  int new_threads = 0;
-
-  for (ThreadSP old_thread : old_thread_list.Threads()) {
-    lldb::tid_t old_thread_id = old_thread->GetID();
-    auto exited_thread_iter =
-        m_session_data->m_exited_threads.find(old_thread_id);
-    if (exited_thread_iter == m_session_data->m_exited_threads.end()) {
-      new_thread_list.AddThread(old_thread);
-      ++new_size;
-      ++continued_threads;
-      WINLOGV_IFALL(
-          WINDOWS_LOG_THREAD,
-          "UpdateThreadList - Thread %llu was running and is still running.",
-          old_thread_id);
-    } else {
-      WINLOGV_IFALL(
-          WINDOWS_LOG_THREAD,
-          "UpdateThreadList - Thread %llu was running and has exited.",
-          old_thread_id);
-      ++exited_threads;
-    }
-  }
-
-  // Also add all the threads that are new since the last time we broke into the
-  // debugger.
-  for (const auto &thread_info : m_session_data->m_new_threads) {
-    ThreadSP thread(new TargetThreadWindowsLive(*this, thread_info.second));
-    thread->SetID(thread_info.first);
-    new_thread_list.AddThread(thread);
-    ++new_size;
-    ++new_threads;
-    WINLOGV_IFALL(WINDOWS_LOG_THREAD,
-                  "UpdateThreadList - Thread %llu is new since last update.",
-                  thread_info.first);
-  }
-
-  WINLOG_IFALL(
-      WINDOWS_LOG_THREAD,
-      "UpdateThreadList - %d new threads, %d old threads, %d exited threads.",
-      new_threads, continued_threads, exited_threads);
-
-  m_session_data->m_new_threads.clear();
-  m_session_data->m_exited_threads.clear();
-
-  return new_size > 0;
-}
-
-Error ProcessWindowsLive::DoLaunch(Module *exe_module,
-                                   ProcessLaunchInfo &launch_info) {
-  // Even though m_session_data is accessed here, it is before a debugger thread
-  // has been
-  // kicked off.  So there's no race conditions, and it shouldn't be necessary
-  // to acquire
-  // the mutex.
-
-  Error result;
-  if (!launch_info.GetFlags().Test(eLaunchFlagDebug)) {
-    StreamString stream;
-    stream.Printf("ProcessWindows unable to launch '%s'.  ProcessWindows can "
-                  "only be used for debug launches.",
-                  launch_info.GetExecutableFile().GetPath().c_str());
-    std::string message = stream.GetString();
-    result.SetErrorString(message.c_str());
-
-    WINERR_IFALL(WINDOWS_LOG_PROCESS, "%s", message.c_str());
-    return result;
-  }
-
-  bool stop_at_entry = launch_info.GetFlags().Test(eLaunchFlagStopAtEntry);
-  m_session_data.reset(new ProcessWindowsData(stop_at_entry));
-
-  SetPrivateState(eStateLaunching);
-  DebugDelegateSP delegate(new LocalDebugDelegate(shared_from_this()));
-  m_session_data->m_debugger.reset(new DebuggerThread(delegate));
-  DebuggerThreadSP debugger = m_session_data->m_debugger;
-
-  // Kick off the DebugLaunch asynchronously and wait for it to complete.
-  result = debugger->DebugLaunch(launch_info);
-  if (result.Fail()) {
-    WINERR_IFALL(WINDOWS_LOG_PROCESS, "DoLaunch failed launching '%s'.  %s",
-                 launch_info.GetExecutableFile().GetPath().c_str(),
-                 result.AsCString());
-    return result;
-  }
-
-  HostProcess process;
-  Error error = WaitForDebuggerConnection(debugger, process);
-  if (error.Fail()) {
-    WINERR_IFALL(WINDOWS_LOG_PROCESS, "DoLaunch failed launching '%s'.  %s",
-                 launch_info.GetExecutableFile().GetPath().c_str(),
-                 error.AsCString());
-    return error;
-  }
-
-  WINLOG_IFALL(WINDOWS_LOG_PROCESS, "DoLaunch successfully launched '%s'",
-               launch_info.GetExecutableFile().GetPath().c_str());
-
-  // We've hit the initial stop.  If eLaunchFlagsStopAtEntry was specified, the
-  // private state
-  // should already be set to eStateStopped as a result of hitting the initial
-  // breakpoint.  If
-  // it was not set, the breakpoint should have already been resumed from and
-  // the private state
-  // should already be eStateRunning.
-  launch_info.SetProcessID(process.GetProcessId());
-  SetID(process.GetProcessId());
-
-  return result;
-}
-
-Error ProcessWindowsLive::DoAttachToProcessWithID(
-    lldb::pid_t pid, const ProcessAttachInfo &attach_info) {
-  m_session_data.reset(
-      new ProcessWindowsData(!attach_info.GetContinueOnceAttached()));
-
-  DebugDelegateSP delegate(new LocalDebugDelegate(shared_from_this()));
-  DebuggerThreadSP debugger(new DebuggerThread(delegate));
-
-  m_session_data->m_debugger = debugger;
-
-  DWORD process_id = static_cast<DWORD>(pid);
-  Error error = debugger->DebugAttach(process_id, attach_info);
-  if (error.Fail()) {
-    WINLOG_IFALL(WINDOWS_LOG_PROCESS, "DoAttachToProcessWithID encountered an "
-                                      "error occurred initiating the "
-                                      "asynchronous attach.  %s",
-                 error.AsCString());
-    return error;
-  }
-
-  HostProcess process;
-  error = WaitForDebuggerConnection(debugger, process);
-  if (error.Fail()) {
-    WINLOG_IFALL(WINDOWS_LOG_PROCESS, "DoAttachToProcessWithID encountered an "
-                                      "error waiting for the debugger to "
-                                      "connect.  %s",
-                 error.AsCString());
-    return error;
-  }
-
-  WINLOG_IFALL(
-      WINDOWS_LOG_PROCESS,
-      "DoAttachToProcessWithID successfully attached to process with pid=%lu",
-      process_id);
-
-  // We've hit the initial stop.  If eLaunchFlagsStopAtEntry was specified, the
-  // private state
-  // should already be set to eStateStopped as a result of hitting the initial
-  // breakpoint.  If
-  // it was not set, the breakpoint should have already been resumed from and
-  // the private state
-  // should already be eStateRunning.
-  SetID(process.GetProcessId());
-  return error;
-}
-
-Error ProcessWindowsLive::WaitForDebuggerConnection(DebuggerThreadSP debugger,
-                                                    HostProcess &process) {
-  Error result;
-  WINLOG_IFANY(WINDOWS_LOG_PROCESS | WINDOWS_LOG_BREAKPOINTS,
-               "WaitForDebuggerConnection Waiting for loader breakpoint.");
-
-  // Block this function until we receive the initial stop from the process.
-  if (::WaitForSingleObject(m_session_data->m_initial_stop_event, INFINITE) ==
-      WAIT_OBJECT_0) {
-    WINLOG_IFANY(WINDOWS_LOG_PROCESS | WINDOWS_LOG_BREAKPOINTS,
-                 "WaitForDebuggerConnection hit loader breakpoint, returning.");
-
-    process = debugger->GetProcess();
-    return m_session_data->m_launch_error;
-  } else
-    return Error(::GetLastError(), eErrorTypeWin32);
-}
-
-Error ProcessWindowsLive::DoResume() {
-  llvm::sys::ScopedLock lock(m_mutex);
-  Error error;
-
-  StateType private_state = GetPrivateState();
-  if (private_state == eStateStopped || private_state == eStateCrashed) {
-    WINLOG_IFALL(
-        WINDOWS_LOG_PROCESS,
-        "DoResume called for process %I64u while state is %u.  Resuming...",
-        m_session_data->m_debugger->GetProcess().GetProcessId(),
-        GetPrivateState());
-
-    ExceptionRecordSP active_exception =
-        m_session_data->m_debugger->GetActiveException().lock();
-    if (active_exception) {
-      // Resume the process and continue processing debug events.  Mask
-      // the exception so that from the process's view, there is no
-      // indication that anything happened.
-      m_session_data->m_debugger->ContinueAsyncException(
-          ExceptionResult::MaskException);
-    }
-
-    WINLOG_IFANY(WINDOWS_LOG_PROCESS | WINDOWS_LOG_THREAD,
-                 "DoResume resuming %u threads.", m_thread_list.GetSize());
-
-    for (uint32_t i = 0; i < m_thread_list.GetSize(); ++i) {
-      auto thread = std::static_pointer_cast<TargetThreadWindowsLive>(
-          m_thread_list.GetThreadAtIndex(i));
-      thread->DoResume();
-    }
-
-    SetPrivateState(eStateRunning);
-  } else {
-    WINERR_IFALL(
-        WINDOWS_LOG_PROCESS,
-        "DoResume called for process %I64u but state is %u.  Returning...",
-        m_session_data->m_debugger->GetProcess().GetProcessId(),
-        GetPrivateState());
-  }
-  return error;
-}
-
-//------------------------------------------------------------------------------
-// ProcessInterface protocol.
-
-lldb_private::ConstString ProcessWindowsLive::GetPluginName() {
-  return GetPluginNameStatic();
-}
-
-uint32_t ProcessWindowsLive::GetPluginVersion() { return 1; }
-
-Error ProcessWindowsLive::DoDetach(bool keep_stopped) {
-  DebuggerThreadSP debugger_thread;
-  StateType private_state;
-  {
-    // Acquire the lock only long enough to get the DebuggerThread.
-    // StopDebugging() will trigger a call back into ProcessWindows which
-    // will also acquire the lock.  Thus we have to release the lock before
-    // calling StopDebugging().
-    llvm::sys::ScopedLock lock(m_mutex);
-
-    private_state = GetPrivateState();
-
-    if (!m_session_data) {
-      WINWARN_IFALL(
-          WINDOWS_LOG_PROCESS,
-          "DoDetach called while state = %u, but there is no active session.",
-          private_state);
-      return Error();
-    }
-
-    debugger_thread = m_session_data->m_debugger;
-  }
-
-  Error error;
-  if (private_state != eStateExited && private_state != eStateDetached) {
-    WINLOG_IFALL(
-        WINDOWS_LOG_PROCESS,
-        "DoDetach called for process %p while state = %d.  Detaching...",
-        debugger_thread->GetProcess().GetNativeProcess().GetSystemHandle(),
-        private_state);
-    error = debugger_thread->StopDebugging(false);
-    if (error.Success()) {
-      SetPrivateState(eStateDetached);
-    }
-
-    // By the time StopDebugging returns, there is no more debugger thread, so
-    // we can be assured that no other thread will race for the session data.
-    m_session_data.reset();
-  } else {
-    WINERR_IFALL(
-        WINDOWS_LOG_PROCESS, "DoDetach called for process %p while state = "
-                             "%d, but cannot destroy in this state.",
-        debugger_thread->GetProcess().GetNativeProcess().GetSystemHandle(),
-        private_state);
-  }
-
-  return error;
-}
-
-Error ProcessWindowsLive::DoDestroy() {
-  DebuggerThreadSP debugger_thread;
-  StateType private_state;
-  {
-    // Acquire this lock inside an inner scope, only long enough to get the
-    // DebuggerThread.
-    // StopDebugging() will trigger a call back into ProcessWindows which will
-    // acquire the lock
-    // again, so we need to not deadlock.
-    llvm::sys::ScopedLock lock(m_mutex);
-
-    private_state = GetPrivateState();
-
-    if (!m_session_data) {
-      WINWARN_IFALL(
-          WINDOWS_LOG_PROCESS,
-          "DoDestroy called while state = %u, but there is no active session.",
-          private_state);
-      return Error();
-    }
-
-    debugger_thread = m_session_data->m_debugger;
-  }
-
-  Error error;
-  if (private_state != eStateExited && private_state != eStateDetached) {
-    WINLOG_IFALL(
-        WINDOWS_LOG_PROCESS, "DoDestroy called for process %p while state = "
-                             "%u.  Shutting down...",
-        debugger_thread->GetProcess().GetNativeProcess().GetSystemHandle(),
-        private_state);
-    error = debugger_thread->StopDebugging(true);
-
-    // By the time StopDebugging returns, there is no more debugger thread, so
-    // we can be assured that no other thread will race for the session data.
-    m_session_data.reset();
-  } else {
-    WINERR_IFALL(
-        WINDOWS_LOG_PROCESS, "DoDestroy called for process %p while state = "
-                             "%d, but cannot destroy in this state.",
-        debugger_thread->GetProcess().GetNativeProcess().GetSystemHandle(),
-        private_state);
-  }
-
-  return error;
-}
-
-void ProcessWindowsLive::RefreshStateAfterStop() {
-  llvm::sys::ScopedLock lock(m_mutex);
-
-  if (!m_session_data) {
-    WINWARN_IFALL(
-        WINDOWS_LOG_PROCESS,
-        "RefreshStateAfterStop called with no active session.  Returning...");
-    return;
-  }
-
-  m_thread_list.RefreshStateAfterStop();
-
-  std::weak_ptr<ExceptionRecord> exception_record =
-      m_session_data->m_debugger->GetActiveException();
-  ExceptionRecordSP active_exception = exception_record.lock();
-  if (!active_exception) {
-    WINERR_IFALL(
-        WINDOWS_LOG_PROCESS,
-        "RefreshStateAfterStop called for process %I64u but there is no "
-        "active exception.  Why is the process stopped?",
-        m_session_data->m_debugger->GetProcess().GetProcessId());
-    return;
-  }
-
-  StopInfoSP stop_info;
-  m_thread_list.SetSelectedThreadByID(active_exception->GetThreadID());
-  ThreadSP stop_thread = m_thread_list.GetSelectedThread();
-  if (!stop_thread)
-    return;
-
-  switch (active_exception->GetExceptionCode()) {
-  case EXCEPTION_SINGLE_STEP: {
-    RegisterContextSP register_context = stop_thread->GetRegisterContext();
-    const uint64_t pc = register_context->GetPC();
-    BreakpointSiteSP site(GetBreakpointSiteList().FindByAddress(pc));
-    if (site && site->ValidForThisThread(stop_thread.get())) {
-      WINLOG_IFANY(WINDOWS_LOG_BREAKPOINTS | WINDOWS_LOG_EXCEPTION |
-                       WINDOWS_LOG_STEP,
-                   "Single-stepped onto a breakpoint in process %I64u at "
-                   "address 0x%I64x with breakpoint site %d",
-                   m_session_data->m_debugger->GetProcess().GetProcessId(), pc,
-                   site->GetID());
-      stop_info = StopInfo::CreateStopReasonWithBreakpointSiteID(*stop_thread,
-                                                                 site->GetID());
-      stop_thread->SetStopInfo(stop_info);
-    } else {
-      WINLOG_IFANY(WINDOWS_LOG_EXCEPTION | WINDOWS_LOG_STEP,
-                   "RefreshStateAfterStop single stepping thread %llu",
-                   stop_thread->GetID());
-      stop_info = StopInfo::CreateStopReasonToTrace(*stop_thread);
-      stop_thread->SetStopInfo(stop_info);
-    }
-    return;
-  }
-
-  case EXCEPTION_BREAKPOINT: {
-    RegisterContextSP register_context = stop_thread->GetRegisterContext();
-
-    // The current EIP is AFTER the BP opcode, which is one byte.
-    uint64_t pc = register_context->GetPC() - 1;
-
-    BreakpointSiteSP site(GetBreakpointSiteList().FindByAddress(pc));
-    if (site) {
-      WINLOG_IFANY(
-          WINDOWS_LOG_BREAKPOINTS | WINDOWS_LOG_EXCEPTION,
-          "RefreshStateAfterStop detected breakpoint in process %I64u at "
-          "address 0x%I64x with breakpoint site %d",
-          m_session_data->m_debugger->GetProcess().GetProcessId(), pc,
-          site->GetID());
-
-      if (site->ValidForThisThread(stop_thread.get())) {
-        WINLOG_IFALL(WINDOWS_LOG_BREAKPOINTS | WINDOWS_LOG_EXCEPTION,
-                     "Breakpoint site %d is valid for this thread (0x%I64x), "
-                     "creating stop info.",
-                     site->GetID(), stop_thread->GetID());
-
-        stop_info = StopInfo::CreateStopReasonWithBreakpointSiteID(
-            *stop_thread, site->GetID());
-        register_context->SetPC(pc);
-      } else {
-        WINLOG_IFALL(WINDOWS_LOG_BREAKPOINTS | WINDOWS_LOG_EXCEPTION,
-                     "Breakpoint site %d is not valid for this thread, "
-                     "creating empty stop info.",
-                     site->GetID());
-      }
-      stop_thread->SetStopInfo(stop_info);
-      return;
-    } else {
-      // The thread hit a hard-coded breakpoint like an `int 3` or
-      // `__debugbreak()`.
-      WINLOG_IFALL(
-          WINDOWS_LOG_BREAKPOINTS | WINDOWS_LOG_EXCEPTION,
-          "No breakpoint site matches for this thread. __debugbreak()?  "
-          "Creating stop info with the exception.");
-      // FALLTHROUGH:  We'll treat this as a generic exception record in the
-      // default case.
-    }
-  }
-
-  default: {
-    std::string desc;
-    llvm::raw_string_ostream desc_stream(desc);
-    desc_stream << "Exception "
-                << llvm::format_hex(active_exception->GetExceptionCode(), 8)
-                << " encountered at address "
-                << llvm::format_hex(active_exception->GetExceptionAddress(), 8);
-    stop_info = StopInfo::CreateStopReasonWithException(
-        *stop_thread, desc_stream.str().c_str());
-    stop_thread->SetStopInfo(stop_info);
-    WINLOG_IFALL(WINDOWS_LOG_EXCEPTION, "%s", desc_stream.str().c_str());
-    return;
-  }
-  }
-}
-
-bool ProcessWindowsLive::IsAlive() {
-  StateType state = GetPrivateState();
-  switch (state) {
-  case eStateCrashed:
-  case eStateDetached:
-  case eStateUnloaded:
-  case eStateExited:
-  case eStateInvalid:
-    return false;
-  default:
-    return true;
-  }
-}
-
-Error ProcessWindowsLive::DoHalt(bool &caused_stop) {
-  Error error;
-  StateType state = GetPrivateState();
-  if (state == eStateStopped)
-    caused_stop = false;
-  else {
-    llvm::sys::ScopedLock lock(m_mutex);
-    caused_stop = ::DebugBreakProcess(m_session_data->m_debugger->GetProcess()
-                                          .GetNativeProcess()
-                                          .GetSystemHandle());
-    if (!caused_stop) {
-      error.SetError(::GetLastError(), eErrorTypeWin32);
-      WINERR_IFALL(
-          WINDOWS_LOG_PROCESS,
-          "DoHalt called DebugBreakProcess, but it failed with error %u",
-          error.GetError());
-    }
-  }
-  return error;
-}
-
-void ProcessWindowsLive::DidLaunch() {
-  ArchSpec arch_spec;
-  DidAttach(arch_spec);
-}
-
-void ProcessWindowsLive::DidAttach(ArchSpec &arch_spec) {
-  llvm::sys::ScopedLock lock(m_mutex);
-
-  // The initial stop won't broadcast the state change event, so account for
-  // that here.
-  if (m_session_data && GetPrivateState() == eStateStopped &&
-      m_session_data->m_stop_at_entry)
-    RefreshStateAfterStop();
-}
-
-size_t ProcessWindowsLive::DoReadMemory(lldb::addr_t vm_addr, void *buf,
-                                        size_t size, Error &error) {
-  llvm::sys::ScopedLock lock(m_mutex);
-
-  if (!m_session_data)
-    return 0;
-
-  WINLOG_IFALL(WINDOWS_LOG_MEMORY,
-               "DoReadMemory attempting to read %u bytes from address 0x%I64x",
-               size, vm_addr);
-
-  HostProcess process = m_session_data->m_debugger->GetProcess();
-  void *addr = reinterpret_cast<void *>(vm_addr);
-  SIZE_T bytes_read = 0;
-  if (!ReadProcessMemory(process.GetNativeProcess().GetSystemHandle(), addr,
-                         buf, size, &bytes_read)) {
-    error.SetError(GetLastError(), eErrorTypeWin32);
-    WINERR_IFALL(WINDOWS_LOG_MEMORY, "DoReadMemory failed with error code %u",
-                 error.GetError());
-  }
-  return bytes_read;
-}
-
-size_t ProcessWindowsLive::DoWriteMemory(lldb::addr_t vm_addr, const void *buf,
-                                         size_t size, Error &error) {
-  llvm::sys::ScopedLock lock(m_mutex);
-  WINLOG_IFALL(
-      WINDOWS_LOG_MEMORY,
-      "DoWriteMemory attempting to write %u bytes into address 0x%I64x", size,
-      vm_addr);
-
-  if (!m_session_data) {
-    WINERR_IFANY(
-        WINDOWS_LOG_MEMORY,
-        "DoWriteMemory cannot write, there is no active debugger connection.");
-    return 0;
-  }
-
-  HostProcess process = m_session_data->m_debugger->GetProcess();
-  void *addr = reinterpret_cast<void *>(vm_addr);
-  SIZE_T bytes_written = 0;
-  lldb::process_t handle = process.GetNativeProcess().GetSystemHandle();
-  if (WriteProcessMemory(handle, addr, buf, size, &bytes_written))
-    FlushInstructionCache(handle, addr, bytes_written);
-  else {
-    error.SetError(GetLastError(), eErrorTypeWin32);
-    WINLOG_IFALL(WINDOWS_LOG_MEMORY, "DoWriteMemory failed with error code %u",
-                 error.GetError());
-  }
-  return bytes_written;
-}
-
-Error ProcessWindowsLive::GetMemoryRegionInfo(lldb::addr_t vm_addr,
-                                              MemoryRegionInfo &info) {
-  Error error;
-  llvm::sys::ScopedLock lock(m_mutex);
-  info.Clear();
-
-  if (!m_session_data) {
-    error.SetErrorString(
-        "GetMemoryRegionInfo called with no debugging session.");
-    WINERR_IFALL(WINDOWS_LOG_MEMORY, "%s", error.AsCString());
-    return error;
-  }
-  HostProcess process = m_session_data->m_debugger->GetProcess();
-  lldb::process_t handle = process.GetNativeProcess().GetSystemHandle();
-  if (handle == nullptr || handle == LLDB_INVALID_PROCESS) {
-    error.SetErrorString(
-        "GetMemoryRegionInfo called with an invalid target process.");
-    WINERR_IFALL(WINDOWS_LOG_MEMORY, "%s", error.AsCString());
-    return error;
-  }
-
-  WINLOG_IFALL(WINDOWS_LOG_MEMORY,
-               "GetMemoryRegionInfo getting info for address 0x%I64x", vm_addr);
-
-  void *addr = reinterpret_cast<void *>(vm_addr);
-  MEMORY_BASIC_INFORMATION mem_info = {};
-  SIZE_T result = ::VirtualQueryEx(handle, addr, &mem_info, sizeof(mem_info));
-  if (result == 0) {
-    if (::GetLastError() == ERROR_INVALID_PARAMETER) {
-      // ERROR_INVALID_PARAMETER is returned if VirtualQueryEx is called with an
-      // address
-      // past the highest accessible address. We should return a range from the
-      // vm_addr
-      // to LLDB_INVALID_ADDRESS
-      info.GetRange().SetRangeBase(vm_addr);
-      info.GetRange().SetRangeEnd(LLDB_INVALID_ADDRESS);
-      info.SetReadable(MemoryRegionInfo::eNo);
-      info.SetExecutable(MemoryRegionInfo::eNo);
-      info.SetWritable(MemoryRegionInfo::eNo);
-      info.SetMapped(MemoryRegionInfo::eNo);
-      return error;
-    } else {
-      error.SetError(::GetLastError(), eErrorTypeWin32);
-      WINERR_IFALL(WINDOWS_LOG_MEMORY, "VirtualQueryEx returned error %u while "
-                                       "getting memory region info for address "
-                                       "0x%I64x",
-                   error.GetError(), vm_addr);
-      return error;
-    }
-  }
-
-  // Protect bits are only valid for MEM_COMMIT regions.
-  if (mem_info.State == MEM_COMMIT) {
-    const bool readable = IsPageReadable(mem_info.Protect);
-    const bool executable = IsPageExecutable(mem_info.Protect);
-    const bool writable = IsPageWritable(mem_info.Protect);
-    info.SetReadable(readable ? MemoryRegionInfo::eYes : MemoryRegionInfo::eNo);
-    info.SetExecutable(executable ? MemoryRegionInfo::eYes
-                                  : MemoryRegionInfo::eNo);
-    info.SetWritable(writable ? MemoryRegionInfo::eYes : MemoryRegionInfo::eNo);
-  } else {
-    info.SetReadable(MemoryRegionInfo::eNo);
-    info.SetExecutable(MemoryRegionInfo::eNo);
-    info.SetWritable(MemoryRegionInfo::eNo);
-  }
-
-  // AllocationBase is defined for MEM_COMMIT and MEM_RESERVE but not MEM_FREE.
-  if (mem_info.State != MEM_FREE) {
-    info.GetRange().SetRangeBase(
-        reinterpret_cast<addr_t>(mem_info.AllocationBase));
-    info.GetRange().SetRangeEnd(reinterpret_cast<addr_t>(mem_info.BaseAddress) +
-                                mem_info.RegionSize);
-    info.SetMapped(MemoryRegionInfo::eYes);
-  } else {
-    // In the unmapped case we need to return the distance to the next block of
-    // memory.
-    // VirtualQueryEx nearly does that except that it gives the distance from
-    // the start
-    // of the page containing vm_addr.
-    SYSTEM_INFO data;
-    GetSystemInfo(&data);
-    DWORD page_offset = vm_addr % data.dwPageSize;
-    info.GetRange().SetRangeBase(vm_addr);
-    info.GetRange().SetByteSize(mem_info.RegionSize - page_offset);
-    info.SetMapped(MemoryRegionInfo::eNo);
-  }
-
-  error.SetError(::GetLastError(), eErrorTypeWin32);
-  WINLOGV_IFALL(WINDOWS_LOG_MEMORY, "Memory region info for address %llu: "
-                                    "readable=%s, executable=%s, writable=%s",
-                vm_addr, BOOL_STR(info.GetReadable()),
-                BOOL_STR(info.GetExecutable()), BOOL_STR(info.GetWritable()));
-  return error;
-}
-
-bool ProcessWindowsLive::CanDebug(lldb::TargetSP target_sp,
-                                  bool plugin_specified_by_name) {
-  if (plugin_specified_by_name)
-    return true;
-
-  // For now we are just making sure the file exists for a given module
-  ModuleSP exe_module_sp(target_sp->GetExecutableModule());
-  if (exe_module_sp.get())
-    return exe_module_sp->GetFileSpec().Exists();
-  // However, if there is no executable module, we return true since we might be
-  // preparing to attach.
-  return true;
-}
-
-void ProcessWindowsLive::OnExitProcess(uint32_t exit_code) {
-  // No need to acquire the lock since m_session_data isn't accessed.
-  WINLOG_IFALL(WINDOWS_LOG_PROCESS, "Process %llu exited with code %u", GetID(),
-               exit_code);
-
-  TargetSP target = m_target_sp.lock();
-  if (target) {
-    ModuleSP executable_module = target->GetExecutableModule();
-    ModuleList unloaded_modules;
-    unloaded_modules.Append(executable_module);
-    target->ModulesDidUnload(unloaded_modules, true);
-  }
-
-  SetProcessExitStatus(GetID(), true, 0, exit_code);
-  SetPrivateState(eStateExited);
-}
-
-void ProcessWindowsLive::OnDebuggerConnected(lldb::addr_t image_base) {
-  DebuggerThreadSP debugger = m_session_data->m_debugger;
-
-  WINLOG_IFALL(WINDOWS_LOG_PROCESS,
-               "Debugger connected to process %I64u.  Image base = 0x%I64x",
-               debugger->GetProcess().GetProcessId(), image_base);
-
-  ModuleSP module = GetTarget().GetExecutableModule();
-  if (!module) {
-    // During attach, we won't have the executable module, so find it now.
-    const DWORD pid = debugger->GetProcess().GetProcessId();
-    const std::string file_name = GetProcessExecutableName(pid);
-    if (file_name.empty()) {
-      return;
-    }
-
-    FileSpec executable_file(file_name, true);
-    ModuleSpec module_spec(executable_file);
-    Error error;
-    module = GetTarget().GetSharedModule(module_spec, &error);
-    if (!module) {
-      return;
-    }
-
-    GetTarget().SetExecutableModule(module, false);
-  }
-
-  bool load_addr_changed;
-  module->SetLoadAddress(GetTarget(), image_base, false, load_addr_changed);
-
-  ModuleList loaded_modules;
-  loaded_modules.Append(module);
-  GetTarget().ModulesDidLoad(loaded_modules);
-
-  // Add the main executable module to the list of pending module loads.  We
-  // can't call
-  // GetTarget().ModulesDidLoad() here because we still haven't returned from
-  // DoLaunch() / DoAttach() yet
-  // so the target may not have set the process instance to `this` yet.
-  llvm::sys::ScopedLock lock(m_mutex);
-  const HostThreadWindows &wmain_thread =
-      debugger->GetMainThread().GetNativeThread();
-  m_session_data->m_new_threads[wmain_thread.GetThreadId()] =
-      debugger->GetMainThread();
-}
-
-ExceptionResult
-ProcessWindowsLive::OnDebugException(bool first_chance,
-                                     const ExceptionRecord &record) {
-  llvm::sys::ScopedLock lock(m_mutex);
-
-  // FIXME: Without this check, occasionally when running the test suite there
-  // is
-  // an issue where m_session_data can be null.  It's not clear how this could
-  // happen
-  // but it only surfaces while running the test suite.  In order to properly
-  // diagnose
-  // this, we probably need to first figure allow the test suite to print out
-  // full
-  // lldb logs, and then add logging to the process plugin.
-  if (!m_session_data) {
-    WINERR_IFANY(WINDOWS_LOG_EXCEPTION, "Debugger thread reported exception "
-                                        "0x%lx at address 0x%llu, but there is "
-                                        "no session.",
-                 record.GetExceptionCode(), record.GetExceptionAddress());
-    return ExceptionResult::SendToApplication;
-  }
-
-  if (!first_chance) {
-    // Any second chance exception is an application crash by definition.
-    SetPrivateState(eStateCrashed);
-  }
-
-  ExceptionResult result = ExceptionResult::SendToApplication;
-  switch (record.GetExceptionCode()) {
-  case EXCEPTION_BREAKPOINT:
-    // Handle breakpoints at the first chance.
-    result = ExceptionResult::BreakInDebugger;
-
-    if (!m_session_data->m_initial_stop_received) {
-      WINLOG_IFANY(WINDOWS_LOG_BREAKPOINTS, "Hit loader breakpoint at address "
-                                            "0x%I64x, setting initial stop "
-                                            "event.",
-                   record.GetExceptionAddress());
-      m_session_data->m_initial_stop_received = true;
-      ::SetEvent(m_session_data->m_initial_stop_event);
-    } else {
-      WINLOG_IFANY(WINDOWS_LOG_BREAKPOINTS,
-                   "Hit non-loader breakpoint at address 0x%I64x.",
-                   record.GetExceptionAddress());
-    }
-    SetPrivateState(eStateStopped);
-    break;
-  case EXCEPTION_SINGLE_STEP:
-    result = ExceptionResult::BreakInDebugger;
-    SetPrivateState(eStateStopped);
-    break;
-  default:
-    WINLOG_IFANY(WINDOWS_LOG_EXCEPTION, "Debugger thread reported exception "
-                                        "0x%lx at address 0x%llx "
-                                        "(first_chance=%s)",
-                 record.GetExceptionCode(), record.GetExceptionAddress(),
-                 BOOL_STR(first_chance));
-    // For non-breakpoints, give the application a chance to handle the
-    // exception first.
-    if (first_chance)
-      result = ExceptionResult::SendToApplication;
-    else
-      result = ExceptionResult::BreakInDebugger;
-  }
-
-  return result;
-}
-
-void ProcessWindowsLive::OnCreateThread(const HostThread &new_thread) {
-  llvm::sys::ScopedLock lock(m_mutex);
-  const HostThreadWindows &wnew_thread = new_thread.GetNativeThread();
-  m_session_data->m_new_threads[wnew_thread.GetThreadId()] = new_thread;
-}
-
-void ProcessWindowsLive::OnExitThread(lldb::tid_t thread_id,
-                                      uint32_t exit_code) {
-  llvm::sys::ScopedLock lock(m_mutex);
-
-  // On a forced termination, we may get exit thread events after the session
-  // data has been cleaned up.
-  if (!m_session_data)
-    return;
-
-  // A thread may have started and exited before the debugger stopped allowing a
-  // refresh.
-  // Just remove it from the new threads list in that case.
-  auto iter = m_session_data->m_new_threads.find(thread_id);
-  if (iter != m_session_data->m_new_threads.end())
-    m_session_data->m_new_threads.erase(iter);
-  else
-    m_session_data->m_exited_threads.insert(thread_id);
-}
-
-void ProcessWindowsLive::OnLoadDll(const ModuleSpec &module_spec,
-                                   lldb::addr_t module_addr) {
-  // Confusingly, there is no Target::AddSharedModule.  Instead, calling
-  // GetSharedModule() with
-  // a new module will add it to the module list and return a corresponding
-  // ModuleSP.
-  Error error;
-  ModuleSP module = GetTarget().GetSharedModule(module_spec, &error);
-  bool load_addr_changed = false;
-  module->SetLoadAddress(GetTarget(), module_addr, false, load_addr_changed);
-
-  ModuleList loaded_modules;
-  loaded_modules.Append(module);
-  GetTarget().ModulesDidLoad(loaded_modules);
-}
-
-void ProcessWindowsLive::OnUnloadDll(lldb::addr_t module_addr) {
-  Address resolved_addr;
-  if (GetTarget().ResolveLoadAddress(module_addr, resolved_addr)) {
-    ModuleSP module = resolved_addr.GetModule();
-    if (module) {
-      ModuleList unloaded_modules;
-      unloaded_modules.Append(module);
-      GetTarget().ModulesDidUnload(unloaded_modules, false);
-    }
-  }
-}
-
-void ProcessWindowsLive::OnDebugString(const std::string &string) {}
-
-void ProcessWindowsLive::OnDebuggerError(const Error &error, uint32_t type) {
-  llvm::sys::ScopedLock lock(m_mutex);
-
-  if (m_session_data->m_initial_stop_received) {
-    // This happened while debugging.  Do we shutdown the debugging session, try
-    // to continue,
-    // or do something else?
-    WINERR_IFALL(WINDOWS_LOG_PROCESS, "Error %u occurred during debugging.  "
-                                      "Unexpected behavior may result.  %s",
-                 error.GetError(), error.AsCString());
-  } else {
-    // If we haven't actually launched the process yet, this was an error
-    // launching the
-    // process.  Set the internal error and signal the initial stop event so
-    // that the DoLaunch
-    // method wakes up and returns a failure.
-    m_session_data->m_launch_error = error;
-    ::SetEvent(m_session_data->m_initial_stop_event);
-    WINERR_IFALL(
-        WINDOWS_LOG_PROCESS,
-        "Error %u occurred launching the process before the initial stop.  %s",
-        error.GetError(), error.AsCString());
-    return;
-  }
-}

source/Plugins/Process/Windows/Live/TargetThreadWindowsLive.h

-//===-- TargetThreadWindowsLive.h -------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_Plugins_Process_Windows_TargetThreadWindowsLive_H_
-#define liblldb_Plugins_Process_Windows_TargetThreadWindowsLive_H_
-
-#include "lldb/Host/HostThread.h"
-#include "lldb/Target/Thread.h"
-#include "lldb/lldb-forward.h"
-
-#include "Plugins/Process/Windows/Common/TargetThreadWindows.h"
-
-namespace lldb_private {
-class ProcessWindows;
-class HostThread;
-class StackFrame;
-
-class TargetThreadWindowsLive : public lldb_private::TargetThreadWindows {
-public:
-  TargetThreadWindowsLive(ProcessWindows &process, const HostThread &thread);
-  virtual ~TargetThreadWindowsLive();
-
-  // lldb_private::Thread overrides
-  void RefreshStateAfterStop() override;
-  void WillResume(lldb::StateType resume_state) override;
-  void DidStop() override;
-  lldb::RegisterContextSP GetRegisterContext() override;
-  lldb::RegisterContextSP
-  CreateRegisterContextForFrame(StackFrame *frame) override;
-  bool CalculateStopInfo() override;
-  Unwind *GetUnwinder() override;
-
-  bool DoResume();
-
-  HostThread GetHostThread() const { return m_host_thread; }
-
-private:
-  lldb::RegisterContextSP CreateRegisterContextForFrameIndex(uint32_t idx);
-
-  HostThread m_host_thread;
-};
-}
-
-#endif

source/Plugins/Process/Windows/Live/TargetThreadWindowsLive.cpp

-//===-- TargetThreadWindowsLive.cpp------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "lldb/Core/Log.h"
-#include "lldb/Core/Logging.h"
-#include "lldb/Core/State.h"
-#include "lldb/Host/HostInfo.h"
-#include "lldb/Host/HostNativeThreadBase.h"
-#include "lldb/Host/windows/HostThreadWindows.h"
-#include "lldb/Host/windows/windows.h"
-#include "lldb/Target/RegisterContext.h"
-
-#include "ProcessWindows.h"
-#include "ProcessWindowsLog.h"
-#include "TargetThreadWindowsLive.h"
-#include "UnwindLLDB.h"
-
-#if defined(_WIN64)
-#include "x64/RegisterContextWindowsLive_x64.h"
-#else
-#include "x86/RegisterContextWindowsLive_x86.h"
-#endif
-
-using namespace lldb;
-using namespace lldb_private;
-
-TargetThreadWindowsLive::TargetThreadWindowsLive(ProcessWindows &process,
-                                                 const HostThread &thread)
-    : TargetThreadWindows(process, thread), m_host_thread(thread) {}
-
-TargetThreadWindowsLive::~TargetThreadWindowsLive() { DestroyThread(); }
-
-void TargetThreadWindowsLive::RefreshStateAfterStop() {
-  ::SuspendThread(m_host_thread.GetNativeThread().GetSystemHandle());
-  SetState(eStateStopped);
-  GetRegisterContext()->InvalidateIfNeeded(false);
-}
-
-void TargetThreadWindowsLive::WillResume(lldb::StateType resume_state) {}
-
-void TargetThreadWindowsLive::DidStop() {}
-
-RegisterContextSP TargetThreadWindowsLive::GetRegisterContext() {
-  if (!m_reg_context_sp)
-    m_reg_context_sp = CreateRegisterContextForFrameIndex(0);
-
-  return m_reg_context_sp;
-}
-
-RegisterContextSP
-TargetThreadWindowsLive::CreateRegisterContextForFrame(StackFrame *frame) {
-  return CreateRegisterContextForFrameIndex(frame->GetConcreteFrameIndex());
-}
-
-RegisterContextSP
-TargetThreadWindowsLive::CreateRegisterContextForFrameIndex(uint32_t idx) {
-  if (!m_reg_context_sp) {
-    ArchSpec arch = HostInfo::GetArchitecture();
-    switch (arch.GetMachine()) {
-    case llvm::Triple::x86:
-#if defined(_WIN64)
-// FIXME: This is a Wow64 process, create a RegisterContextWindows_Wow64
-#else
-      m_reg_context_sp.reset(new RegisterContextWindowsLive_x86(*this, idx));
-#endif
-      break;
-    case llvm::Triple::x86_64:
-#if defined(_WIN64)
-      m_reg_context_sp.reset(new RegisterContextWindowsLive_x64(*this, idx));
-#else
-// LLDB is 32-bit, but the target process is 64-bit.  We probably can't debug
-// this.
-#endif
-    default:
-      break;
-    }
-  }
-  return m_reg_context_sp;
-}
-
-bool TargetThreadWindowsLive::CalculateStopInfo() {
-  SetStopInfo(m_stop_info_sp);
-  return true;
-}
-
-Unwind *TargetThreadWindowsLive::GetUnwinder() {
-  // FIXME: Implement an unwinder based on the Windows unwinder exposed through
-  // DIA SDK.
-  if (m_unwinder_ap.get() == NULL)
-    m_unwinder_ap.reset(new UnwindLLDB(*this));
-  return m_unwinder_ap.get();
-}
-
-bool TargetThreadWindowsLive::DoResume() {
-  StateType resume_state = GetTemporaryResumeState();
-  StateType current_state = GetState();
-  if (resume_state == current_state)
-    return true;
-
-  if (resume_state == eStateStepping) {
-    uint32_t flags_index =
-        GetRegisterContext()->ConvertRegisterKindToRegisterNumber(
-            eRegisterKindGeneric, LLDB_REGNUM_GENERIC_FLAGS);
-    uint64_t flags_value =
-        GetRegisterContext()->ReadRegisterAsUnsigned(flags_index, 0);
-    flags_value |= 0x100; // Set the trap flag on the CPU
-    GetRegisterContext()->WriteRegisterFromUnsigned(flags_index, flags_value);
-  }
-
-  if (resume_state == eStateStepping || resume_state == eStateRunning) {
-    DWORD previous_suspend_count = 0;
-    HANDLE thread_handle = m_host_thread.GetNativeThread().GetSystemHandle();
-    do {
-      previous_suspend_count = ::ResumeThread(thread_handle);
-    } while (previous_suspend_count > 0);
-  }
-  return true;
-}

source/Plugins/Process/Windows/Live/x64/RegisterContextWindowsLive_x64.h

-//===-- RegisterContextWindowsLive_x64.h ------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_RegisterContextWindowsLive_x64_H_
-#define liblldb_RegisterContextWindowsLive_x64_H_
-
-#include "../../Common/x64/RegisterContextWindows_x64.h"
-#include "lldb/lldb-forward.h"
-
-namespace lldb_private {
-
-class Thread;
-
-class RegisterContextWindowsLive_x64 : public RegisterContextWindows_x64 {
-public:
-  //------------------------------------------------------------------
-  // Constructors and Destructors
-  //------------------------------------------------------------------
-  RegisterContextWindowsLive_x64(Thread &thread, uint32_t concrete_frame_idx);
-
-  virtual ~RegisterContextWindowsLive_x64();
-
-  //------------------------------------------------------------------
-  // Subclasses must override these functions
-  //------------------------------------------------------------------
-  bool ReadRegister(const RegisterInfo *reg_info,
-                    RegisterValue &reg_value) override;
-
-  bool WriteRegister(const RegisterInfo *reg_info,
-                     const RegisterValue &reg_value) override;
-};
-}
-
-#endif // #ifndef liblldb_RegisterContextWindowsLive_x64_H_

source/Plugins/Process/Windows/Live/x64/RegisterContextWindowsLive_x64.cpp

-//===-- RegisterContextWindowsLive_x64.cpp ----------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "lldb/Core/Error.h"
-#include "lldb/Core/RegisterValue.h"
-#include "lldb/Host/windows/HostThreadWindows.h"
-#include "lldb/Host/windows/windows.h"
-#include "lldb/lldb-private-types.h"
-
-#include "RegisterContextWindowsLive_x64.h"
-#include "TargetThreadWindows.h"
-#include "lldb-x86-register-enums.h"
-
-#include "llvm/ADT/STLExtras.h"
-
-using namespace lldb;
-using namespace lldb_private;
-
-RegisterContextWindowsLive_x64::RegisterContextWindowsLive_x64(
-    Thread &thread, uint32_t concrete_frame_idx)
-    : RegisterContextWindows_x64(thread, concrete_frame_idx) {}
-
-RegisterContextWindowsLive_x64::~RegisterContextWindowsLive_x64() {}
-
-bool RegisterContextWindowsLive_x64::ReadRegister(const RegisterInfo *reg_info,
-                                                  RegisterValue &reg_value) {
-  if (!CacheAllRegisterValues())
-    return false;
-
-  switch (reg_info->kinds[eRegisterKindLLDB]) {
-  case lldb_rax_x86_64:
-    reg_value.SetUInt64(m_context.Rax);
-    break;
-  case lldb_rbx_x86_64:
-    reg_value.SetUInt64(m_context.Rbx);
-    break;
-  case lldb_rcx_x86_64:
-    reg_value.SetUInt64(m_context.Rcx);
-    break;
-  case lldb_rdx_x86_64:
-    reg_value.SetUInt64(m_context.Rdx);
-    break;
-  case lldb_rdi_x86_64:
-    reg_value.SetUInt64(m_context.Rdi);
-    break;
-  case lldb_rsi_x86_64:
-    reg_value.SetUInt64(m_context.Rsi);
-    break;
-  case lldb_r8_x86_64:
-    reg_value.SetUInt64(m_context.R8);
-    break;
-  case lldb_r9_x86_64:
-    reg_value.SetUInt64(m_context.R9);
-    break;
-  case lldb_r10_x86_64:
-    reg_value.SetUInt64(m_context.R10);
-    break;
-  case lldb_r11_x86_64:
-    reg_value.SetUInt64(m_context.R11);
-    break;
-  case lldb_r12_x86_64:
-    reg_value.SetUInt64(m_context.R12);
-    break;
-  case lldb_r13_x86_64:
-    reg_value.SetUInt64(m_context.R13);
-    break;
-  case lldb_r14_x86_64:
-    reg_value.SetUInt64(m_context.R14);
-    break;
-  case lldb_r15_x86_64:
-    reg_value.SetUInt64(m_context.R15);
-    break;
-  case lldb_rbp_x86_64:
-    reg_value.SetUInt64(m_context.Rbp);
-    break;
-  case lldb_rsp_x86_64:
-    reg_value.SetUInt64(m_context.Rsp);
-    break;
-  case lldb_rip_x86_64:
-    reg_value.SetUInt64(m_context.Rip);
-    break;
-  case lldb_rflags_x86_64:
-    reg_value.SetUInt64(m_context.EFlags);
-    break;
-  }
-  return true;
-}
-
-bool RegisterContextWindowsLive_x64::WriteRegister(
-    const RegisterInfo *reg_info, const RegisterValue &reg_value) {
-  // Since we cannot only write a single register value to the inferior, we need
-  // to make sure
-  // our cached copy of the register values are fresh.  Otherwise when writing
-  // EAX, for example,
-  // we may also overwrite some other register with a stale value.
-  if (!CacheAllRegisterValues())
-    return false;
-
-  switch (reg_info->kinds[eRegisterKindLLDB]) {
-  case lldb_rax_x86_64:
-    m_context.Rax = reg_value.GetAsUInt64();
-    break;
-  case lldb_rbx_x86_64:
-    m_context.Rbx = reg_value.GetAsUInt64();
-    break;
-  case lldb_rcx_x86_64:
-    m_context.Rcx = reg_value.GetAsUInt64();
-    break;
-  case lldb_rdx_x86_64:
-    m_context.Rdx = reg_value.GetAsUInt64();
-    break;
-  case lldb_rdi_x86_64:
-    m_context.Rdi = reg_value.GetAsUInt64();
-    break;
-  case lldb_rsi_x86_64:
-    m_context.Rsi = reg_value.GetAsUInt64();
-    break;
-  case lldb_r8_x86_64:
-    m_context.R8 = reg_value.GetAsUInt64();
-    break;
-  case lldb_r9_x86_64:
-    m_context.R9 = reg_value.GetAsUInt64();
-    break;
-  case lldb_r10_x86_64:
-    m_context.R10 = reg_value.GetAsUInt64();
-    break;
-  case lldb_r11_x86_64:
-    m_context.R11 = reg_value.GetAsUInt64();
-    break;
-  case lldb_r12_x86_64:
-    m_context.R12 = reg_value.GetAsUInt64();
-    break;
-  case lldb_r13_x86_64:
-    m_context.R13 = reg_value.GetAsUInt64();
-    break;
-  case lldb_r14_x86_64:
-    m_context.R14 = reg_value.GetAsUInt64();
-    break;
-  case lldb_r15_x86_64:
-    m_context.R15 = reg_value.GetAsUInt64();
-    break;
-  case lldb_rbp_x86_64:
-    m_context.Rbp = reg_value.GetAsUInt64();
-    break;
-  case lldb_rsp_x86_64:
-    m_context.Rsp = reg_value.GetAsUInt64();
-    break;
-  case lldb_rip_x86_64:
-    m_context.Rip = reg_value.GetAsUInt64();
-    break;
-  case lldb_rflags_x86_64:
-    m_context.EFlags = reg_value.GetAsUInt64();
-    break;
-  }
-
-  // Physically update the registers in the target process.
-  TargetThreadWindows &wthread = static_cast<TargetThreadWindows &>(m_thread);
-  return ::SetThreadContext(
-      wthread.GetHostThread().GetNativeThread().GetSystemHandle(), &m_context);
-}

source/Plugins/Process/Windows/Live/x86/RegisterContextWindowsLive_x86.h

-//===-- RegisterContextWindowsLive_x86.h ------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_RegisterContextWindowsLive_x86_H_
-#define liblldb_RegisterContextWindowsLive_x86_H_
-
-#include "../../Common/x86/RegisterContextWindows_x86.h"
-#include "lldb/lldb-forward.h"
-
-namespace lldb_private {
-
-class Thread;
-
-class RegisterContextWindowsLive_x86 : public RegisterContextWindows_x86 {
-public:
-  //------------------------------------------------------------------
-  // Constructors and Destructors
-  //------------------------------------------------------------------
-  RegisterContextWindowsLive_x86(Thread &thread, uint32_t concrete_frame_idx);
-
-  virtual ~RegisterContextWindowsLive_x86();
-
-  bool WriteRegister(const RegisterInfo *reg_info,
-                     const RegisterValue &reg_value) override;
-};
-}
-
-#endif // #ifndef liblldb_RegisterContextWindowsLive_x86_H_

source/Plugins/Process/Windows/Live/x86/RegisterContextWindowsLive_x86.cpp

-//===-- RegisterContextWindowsLive_x86.cpp ------------------------*- C++
-//-*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "lldb/Core/Error.h"
-#include "lldb/Core/RegisterValue.h"
-#include "lldb/Host/windows/HostThreadWindows.h"
-#include "lldb/Host/windows/windows.h"
-#include "lldb/lldb-private-types.h"
-
-#include "ProcessWindowsLog.h"
-#include "RegisterContextWindowsLive_x86.h"
-#include "TargetThreadWindows.h"
-#include "lldb-x86-register-enums.h"
-
-#include "llvm/ADT/STLExtras.h"
-
-using namespace lldb;
-
-namespace lldb_private {
-
-RegisterContextWindowsLive_x86::RegisterContextWindowsLive_x86(
-    Thread &thread, uint32_t concrete_frame_idx)
-    : RegisterContextWindows_x86(thread, concrete_frame_idx) {}
-
-RegisterContextWindowsLive_x86::~RegisterContextWindowsLive_x86() {}
-
-bool RegisterContextWindowsLive_x86::WriteRegister(
-    const RegisterInfo *reg_info, const RegisterValue &reg_value) {
-  // Since we cannot only write a single register value to the inferior, we need
-  // to make sure
-  // our cached copy of the register values are fresh.  Otherwise when writing
-  // EAX, for example,
-  // we may also overwrite some other register with a stale value.
-  if (!CacheAllRegisterValues())
-    return false;
-
-  uint32_t reg = reg_info->kinds[eRegisterKindLLDB];
-  switch (reg) {
-  case lldb_eax_i386:
-    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EAX",
-                 reg_value.GetAsUInt32());
-    m_context.Eax = reg_value.GetAsUInt32();
-    break;
-  case lldb_ebx_i386:
-    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EBX",
-                 reg_value.GetAsUInt32());
-    m_context.Ebx = reg_value.GetAsUInt32();
-    break;
-  case lldb_ecx_i386:
-    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to ECX",
-                 reg_value.GetAsUInt32());
-    m_context.Ecx = reg_value.GetAsUInt32();
-    break;
-  case lldb_edx_i386:
-    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EDX",
-                 reg_value.GetAsUInt32());
-    m_context.Edx = reg_value.GetAsUInt32();
-    break;
-  case lldb_edi_i386:
-    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EDI",
-                 reg_value.GetAsUInt32());
-    m_context.Edi = reg_value.GetAsUInt32();
-    break;
-  case lldb_esi_i386:
-    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to ESI",
-                 reg_value.GetAsUInt32());
-    m_context.Esi = reg_value.GetAsUInt32();
-    break;
-  case lldb_ebp_i386:
-    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EBP",
-                 reg_value.GetAsUInt32());
-    m_context.Ebp = reg_value.GetAsUInt32();
-    break;
-  case lldb_esp_i386:
-    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to ESP",
-                 reg_value.GetAsUInt32());
-    m_context.Esp = reg_value.GetAsUInt32();
-    break;
-  case lldb_eip_i386:
-    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EIP",
-                 reg_value.GetAsUInt32());
-    m_context.Eip = reg_value.GetAsUInt32();
-    break;
-  case lldb_eflags_i386:
-    WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Write value 0x%x to EFLAGS",
-                 reg_value.GetAsUInt32());
-    m_context.EFlags = reg_value.GetAsUInt32();
-    break;
-  default:
-    WINWARN_IFALL(WINDOWS_LOG_REGISTERS,
-                  "Write value 0x%x to unknown register %u",
-                  reg_value.GetAsUInt32(), reg);
-  }
-
-  // Physically update the registers in the target process.
-  TargetThreadWindows &wthread = static_cast<TargetThreadWindows &>(m_thread);
-  return ::SetThreadContext(
-      wthread.GetHostThread().GetNativeThread().GetSystemHandle(), &m_context);
-}
-
-} // namespace lldb_private

source/Plugins/Process/Windows/MiniDump/CMakeLists.txt

-include_directories(../../Utility)
-include_directories(../Common)
-
-set(PROC_WINDOWS_MINIDUMP_SOURCES
-  ProcessWinMiniDump.cpp
-  ThreadWinMiniDump.cpp
-  )
-
-if (CMAKE_SIZEOF_VOID_P EQUAL 4)
-  set(PROC_WINDOWS_MINIDUMP_SOURCES ${PROC_WINDOWS_MINIDUMP_SOURCES}
-    x86/RegisterContextWindowsMiniDump_x86.cpp
-    )
-elseif (CMAKE_SIZEOF_VOID_P EQUAL 8)
-  set(PROC_WINDOWS_MINIDUMP_SOURCES ${PROC_WINDOWS_MINIDUMP_SOURCES}
-    x64/RegisterContextWindowsMiniDump_x64.cpp
-    )
-endif()
-
-add_lldb_library(lldbPluginProcessWinMiniDump
-  ${PROC_WINDOWS_MINIDUMP_SOURCES}
-  )

source/Plugins/Process/Windows/MiniDump/ProcessWinMiniDump.h

-//===-- ProcessWinMiniDump.h ------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_ProcessWinMiniDump_h_
-#define liblldb_ProcessWinMiniDump_h_
-
-#include <list>
-#include <vector>
-
-#include "lldb/Core/ConstString.h"
-#include "lldb/Core/Error.h"
-#include "lldb/Target/Process.h"
-
-#include "Plugins/Process/Windows/Common/ProcessWindows.h"
-
-struct ThreadData;
-
-class ProcessWinMiniDump : public lldb_private::ProcessWindows {
-public:
-  static lldb::ProcessSP
-  CreateInstance(lldb::TargetSP target_sp, lldb::ListenerSP listener_sp,
-                 const lldb_private::FileSpec *crash_file_path);
-
-  static void Initialize();
-
-  static void Terminate();
-
-  static lldb_private::ConstString GetPluginNameStatic();
-
-  static const char *GetPluginDescriptionStatic();
-
-  ProcessWinMiniDump(lldb::TargetSP target_sp, lldb::ListenerSP listener_sp,
-                     const lldb_private::FileSpec &core_file);
-
-  virtual ~ProcessWinMiniDump();
-
-  bool CanDebug(lldb::TargetSP target_sp,
-                bool plugin_specified_by_name) override;
-
-  lldb_private::Error DoLoadCore() override;
-
-  lldb_private::DynamicLoader *GetDynamicLoader() override;
-
-  lldb_private::ConstString GetPluginName() override;
-
-  uint32_t GetPluginVersion() override;
-
-  lldb_private::Error DoDestroy() override;
-
-  void RefreshStateAfterStop() override;
-
-  bool IsAlive() override;
-
-  bool WarnBeforeDetach() const override;
-
-  size_t ReadMemory(lldb::addr_t addr, void *buf, size_t size,
-                    lldb_private::Error &error) override;
-
-  size_t DoReadMemory(lldb::addr_t addr, void *buf, size_t size,
-                      lldb_private::Error &error) override;
-
-  lldb_private::ArchSpec GetArchitecture();
-
-  lldb_private::Error
-  GetMemoryRegionInfo(lldb::addr_t load_addr,
-                      lldb_private::MemoryRegionInfo &range_info) override;
-
-protected:
-  void Clear();
-
-  bool UpdateThreadList(lldb_private::ThreadList &old_thread_list,
-                        lldb_private::ThreadList &new_thread_list) override;
-
-private:
-  // Keep Windows-specific types out of this header.
-  class Impl;
-  std::unique_ptr<Impl> m_impl_up;
-};
-
-#endif // liblldb_ProcessWinMiniDump_h_

source/Plugins/Process/Windows/MiniDump/ProcessWinMiniDump.cpp

-//===-- ProcessWinMiniDump.cpp ----------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "ProcessWinMiniDump.h"
-
-#include "lldb/Host/windows/windows.h"
-#include <DbgHelp.h>
-
-#include <assert.h>
-#include <memory>
-#include <mutex>
-#include <stdlib.h>
-
-#include "Plugins/DynamicLoader/Windows-DYLD/DynamicLoaderWindowsDYLD.h"
-#include "lldb/Core/DataBufferHeap.h"
-#include "lldb/Core/Log.h"
-#include "lldb/Core/Module.h"
-#include "lldb/Core/ModuleSpec.h"
-#include "lldb/Core/PluginManager.h"
-#include "lldb/Core/Section.h"
-#include "lldb/Core/State.h"
-#include "lldb/Target/DynamicLoader.h"
-#include "lldb/Target/MemoryRegionInfo.h"
-#include "lldb/Target/StopInfo.h"
-#include "lldb/Target/Target.h"
-#include "lldb/Target/UnixSignals.h"
-#include "lldb/Utility/LLDBAssert.h"
-#include "llvm/Support/ConvertUTF.h"
-#include "llvm/Support/Format.h"
-#include "llvm/Support/raw_ostream.h"
-
-#include "Plugins/Process/Windows/Common/NtStructures.h"
-#include "Plugins/Process/Windows/Common/ProcessWindowsLog.h"
-
-#include "ExceptionRecord.h"
-#include "ThreadWinMiniDump.h"
-
-using namespace lldb_private;
-
-// Implementation class for ProcessWinMiniDump encapsulates the Windows-specific
-// code, keeping non-portable types out of the header files.
-// TODO(amccarth):  Determine if we need a mutex for access.  Given that this is
-// postmortem debugging, I don't think so.
-class ProcessWinMiniDump::Impl {
-public:
-  Impl(const FileSpec &core_file, ProcessWinMiniDump *self);
-  ~Impl();
-
-  Error DoLoadCore();
-
-  bool UpdateThreadList(ThreadList &old_thread_list,
-                        ThreadList &new_thread_list);
-
-  void RefreshStateAfterStop();
-
-  size_t DoReadMemory(lldb::addr_t addr, void *buf, size_t size, Error &error);
-
-  Error GetMemoryRegionInfo(lldb::addr_t load_addr,
-                            lldb_private::MemoryRegionInfo &info);
-
-private:
-  // Describes a range of memory captured in the mini dump.
-  struct Range {
-    lldb::addr_t start; // virtual address of the beginning of the range
-    size_t size;        // size of the range in bytes
-    const uint8_t *ptr; // absolute pointer to the first byte of the range
-  };
-
-  // If the mini dump has a memory range that contains the desired address, it
-  // returns true with the details of the range in *range_out.  Otherwise, it
-  // returns false.
-  bool FindMemoryRange(lldb::addr_t addr, Range *range_out) const;
-
-  lldb_private::Error MapMiniDumpIntoMemory();
-
-  lldb_private::ArchSpec DetermineArchitecture();
-
-  void ReadExceptionRecord();
-
-  void ReadMiscInfo();
-
-  void ReadModuleList();
-
-  // A thin wrapper around WinAPI's MiniDumpReadDumpStream to avoid redundant
-  // checks.  If there's a failure (e.g., if the requested stream doesn't
-  // exist),
-  // the function returns nullptr and sets *size_out to 0.
-  void *FindDumpStream(unsigned stream_number, size_t *size_out) const;
-
-  // Getting a string out of a mini dump is a chore.  You're usually given a
-  // relative virtual address (RVA), which points to a counted string that's in
-  // Windows Unicode (UTF-16).  This wrapper handles all the redirection and
-  // returns a UTF-8 copy of the string.
-  std::string GetMiniDumpString(RVA rva) const;
-
-  ProcessWinMiniDump *m_self; // non-owning back pointer
-  FileSpec m_core_file;
-  HANDLE m_dump_file; // handle to the open minidump file
-  HANDLE m_mapping;   // handle to the file mapping for the minidump file
-  void *m_base_addr;  // base memory address of the minidump
-  std::shared_ptr<ExceptionRecord> m_exception_sp;
-  bool m_is_wow64; // minidump is of a 32-bit process captured with a 64-bit
-                   // debugger
-};
-
-ProcessWinMiniDump::Impl::Impl(const FileSpec &core_file,
-                               ProcessWinMiniDump *self)
-    : m_self(self), m_core_file(core_file), m_dump_file(INVALID_HANDLE_VALUE),
-      m_mapping(NULL), m_base_addr(nullptr), m_exception_sp(),
-      m_is_wow64(false) {}
-
-ProcessWinMiniDump::Impl::~Impl() {
-  if (m_base_addr) {
-    ::UnmapViewOfFile(m_base_addr);
-    m_base_addr = nullptr;
-  }
-  if (m_mapping) {
-    ::CloseHandle(m_mapping);
-    m_mapping = NULL;
-  }
-  if (m_dump_file != INVALID_HANDLE_VALUE) {
-    ::CloseHandle(m_dump_file);
-    m_dump_file = INVALID_HANDLE_VALUE;
-  }
-}
-
-Error ProcessWinMiniDump::Impl::DoLoadCore() {
-  Error error = MapMiniDumpIntoMemory();
-  if (error.Fail()) {
-    return error;
-  }
-
-  m_self->GetTarget().SetArchitecture(DetermineArchitecture());
-  ReadMiscInfo(); // notably for process ID
-  ReadModuleList();
-  ReadExceptionRecord();
-
-  return error;
-}
-
-bool ProcessWinMiniDump::Impl::UpdateThreadList(ThreadList &old_thread_list,
-                                                ThreadList &new_thread_list) {
-  size_t size = 0;
-  auto thread_list_ptr = static_cast<const MINIDUMP_THREAD_LIST *>(
-      FindDumpStream(ThreadListStream, &size));
-  if (thread_list_ptr) {
-    const ULONG32 thread_count = thread_list_ptr->NumberOfThreads;
-    for (ULONG32 i = 0; i < thread_count; ++i) {
-      const auto &mini_dump_thread = thread_list_ptr->Threads[i];
-      auto thread_sp = std::make_shared<ThreadWinMiniDump>(
-          *m_self, mini_dump_thread.ThreadId);
-      if (mini_dump_thread.ThreadContext.DataSize >= sizeof(CONTEXT)) {
-        const CONTEXT *context = reinterpret_cast<const CONTEXT *>(
-            static_cast<const char *>(m_base_addr) +
-            mini_dump_thread.ThreadContext.Rva);
-
-        if (m_is_wow64) {
-          // On Windows, a 32-bit process can run on a 64-bit machine under
-          // WOW64. If the minidump was captured with a 64-bit debugger, then
-          // the CONTEXT we just grabbed from the mini_dump_thread is the one
-          // for the 64-bit "native" process rather than the 32-bit "guest"
-          // process we care about.  In this case, we can get the 32-bit CONTEXT
-          // from the TEB (Thread Environment Block) of the 64-bit process.
-          Error error;
-          TEB64 wow64teb = {};
-          m_self->ReadMemory(mini_dump_thread.Teb, &wow64teb, sizeof(wow64teb),
-                             error);
-          if (error.Success()) {
-            // Slot 1 of the thread-local storage in the 64-bit TEB points to a
-            // structure that includes the 32-bit CONTEXT (after a ULONG).
-            // See:  https://msdn.microsoft.com/en-us/library/ms681670.aspx
-            const lldb::addr_t addr = wow64teb.TlsSlots[1];
-            Range range = {};
-            if (FindMemoryRange(addr, &range)) {
-              lldbassert(range.start <= addr);
-              const size_t offset = addr - range.start + sizeof(ULONG);
-              if (offset < range.size) {
-                const size_t overlap = range.size - offset;
-                if (overlap >= sizeof(CONTEXT)) {
-                  context =
-                      reinterpret_cast<const CONTEXT *>(range.ptr + offset);
-                }
-              }
-            }
-          }
-
-          // NOTE:  We don't currently use the TEB for anything else.  If we
-          // need it in
-          // the future, the 32-bit TEB is located according to the address
-          // stored in the
-          // first slot of the 64-bit TEB (wow64teb.Reserved1[0]).
-        }
-
-        thread_sp->SetContext(context);
-      }
-      new_thread_list.AddThread(thread_sp);
-    }
-  }
-
-  return new_thread_list.GetSize(false) > 0;
-}
-
-void ProcessWinMiniDump::Impl::RefreshStateAfterStop() {
-  if (!m_exception_sp)
-    return;
-
-  auto active_exception = m_exception_sp;
-  std::string desc;
-  llvm::raw_string_ostream desc_stream(desc);
-  desc_stream << "Exception "
-              << llvm::format_hex(active_exception->GetExceptionCode(), 8)
-              << " encountered at address "
-              << llvm::format_hex(active_exception->GetExceptionAddress(), 8);
-  m_self->m_thread_list.SetSelectedThreadByID(active_exception->GetThreadID());
-  auto stop_thread = m_self->m_thread_list.GetSelectedThread();
-  auto stop_info = StopInfo::CreateStopReasonWithException(
-      *stop_thread, desc_stream.str().c_str());
-  stop_thread->SetStopInfo(stop_info);
-}
-
-size_t ProcessWinMiniDump::Impl::DoReadMemory(lldb::addr_t addr, void *buf,
-                                              size_t size, Error &error) {
-  // I don't have a sense of how frequently this is called or how many memory
-  // ranges a mini dump typically has, so I'm not sure if searching for the
-  // appropriate range linearly each time is stupid.  Perhaps we should build
-  // an index for faster lookups.
-  Range range = {};
-  if (!FindMemoryRange(addr, &range)) {
-    return 0;
-  }
-
-  // There's at least some overlap between the beginning of the desired range
-  // (addr) and the current range.  Figure out where the overlap begins and
-  // how much overlap there is, then copy it to the destination buffer.
-  lldbassert(range.start <= addr);
-  const size_t offset = addr - range.start;
-  lldbassert(offset < range.size);
-  const size_t overlap = std::min(size, range.size - offset);
-  std::memcpy(buf, range.ptr + offset, overlap);
-  return overlap;
-}
-
-Error ProcessWinMiniDump::Impl::GetMemoryRegionInfo(
-    lldb::addr_t load_addr, lldb_private::MemoryRegionInfo &info) {
-  Error error;
-  size_t size;
-  info.Clear();
-  const auto list = reinterpret_cast<const MINIDUMP_MEMORY_INFO_LIST *>(
-      FindDumpStream(MemoryInfoListStream, &size));
-  if (list == nullptr || size < sizeof(MINIDUMP_MEMORY_INFO_LIST)) {
-    error.SetErrorString("the mini dump contains no memory range information");
-    return error;
-  }
-
-  if (list->SizeOfEntry < sizeof(MINIDUMP_MEMORY_INFO)) {
-    error.SetErrorString("the entries in the mini dump memory info list are "
-                         "smaller than expected");
-    return error;
-  }
-
-  if (size < list->SizeOfHeader + list->SizeOfEntry * list->NumberOfEntries) {
-    error.SetErrorString("the mini dump memory info list is incomplete");
-    return error;
-  }
-
-  const MINIDUMP_MEMORY_INFO *next_entry = nullptr;
-
-  for (uint64_t i = 0; i < list->NumberOfEntries; ++i) {
-    const auto entry = reinterpret_cast<const MINIDUMP_MEMORY_INFO *>(
-        reinterpret_cast<const char *>(list) + list->SizeOfHeader +
-        i * list->SizeOfEntry);
-    const auto head = entry->BaseAddress;
-    const auto tail = head + entry->RegionSize;
-    if (head <= load_addr && load_addr < tail) {
-      info.GetRange().SetRangeBase((entry->State != MEM_FREE) ? head
-                                                              : load_addr);
-      info.GetRange().SetRangeEnd(tail);
-      info.SetReadable(IsPageReadable(entry->Protect) ? MemoryRegionInfo::eYes
-                                                      : MemoryRegionInfo::eNo);
-      info.SetWritable(IsPageWritable(entry->Protect) ? MemoryRegionInfo::eYes
-                                                      : MemoryRegionInfo::eNo);
-      info.SetExecutable(IsPageExecutable(entry->Protect)
-                             ? MemoryRegionInfo::eYes
-                             : MemoryRegionInfo::eNo);
-      info.SetMapped((entry->State != MEM_FREE) ? MemoryRegionInfo::eYes
-                                                : MemoryRegionInfo::eNo);
-      return error;
-    } else if (head > load_addr &&
-               (next_entry == nullptr || head < next_entry->BaseAddress)) {
-      // In case there is no region containing load_addr keep track of the
-      // nearest region
-      // after load_addr so we can return the distance to it.
-      next_entry = entry;
-    }
-  }
-
-  // No containing region found. Create an unmapped region that extends to the
-  // next region
-  // or LLDB_INVALID_ADDRESS
-  info.GetRange().SetRangeBase(load_addr);
-  info.GetRange().SetRangeEnd((next_entry != nullptr) ? next_entry->BaseAddress
-                                                      : LLDB_INVALID_ADDRESS);
-  info.SetReadable(MemoryRegionInfo::eNo);
-  info.SetWritable(MemoryRegionInfo::eNo);
-  info.SetExecutable(MemoryRegionInfo::eNo);
-  info.SetMapped(MemoryRegionInfo::eNo);
-
-  // Note that the memory info list doesn't seem to contain ranges in kernel
-  // space,
-  // so if you're walking a stack that has kernel frames, the stack may appear
-  // truncated.
-  return error;
-}
-
-bool ProcessWinMiniDump::Impl::FindMemoryRange(lldb::addr_t addr,
-                                               Range *range_out) const {
-  size_t stream_size = 0;
-  auto mem_list_stream = static_cast<const MINIDUMP_MEMORY_LIST *>(
-      FindDumpStream(MemoryListStream, &stream_size));
-  if (mem_list_stream) {
-    for (ULONG32 i = 0; i < mem_list_stream->NumberOfMemoryRanges; ++i) {
-      const MINIDUMP_MEMORY_DESCRIPTOR &mem_desc =
-          mem_list_stream->MemoryRanges[i];
-      const MINIDUMP_LOCATION_DESCRIPTOR &loc_desc = mem_desc.Memory;
-      const lldb::addr_t range_start = mem_desc.StartOfMemoryRange;
-      const size_t range_size = loc_desc.DataSize;
-      if (range_start <= addr && addr < range_start + range_size) {
-        range_out->start = range_start;
-        range_out->size = range_size;
-        range_out->ptr =
-            reinterpret_cast<const uint8_t *>(m_base_addr) + loc_desc.Rva;
-        return true;
-      }
-    }
-  }
-
-  // Some mini dumps have a Memory64ListStream that captures all the heap
-  // memory.  We can't exactly use the same loop as above, because the mini
-  // dump uses slightly different data structures to describe those.
-  auto mem_list64_stream = static_cast<const MINIDUMP_MEMORY64_LIST *>(
-      FindDumpStream(Memory64ListStream, &stream_size));
-  if (mem_list64_stream) {
-    size_t base_rva = mem_list64_stream->BaseRva;
-    for (ULONG32 i = 0; i < mem_list64_stream->NumberOfMemoryRanges; ++i) {
-      const MINIDUMP_MEMORY_DESCRIPTOR64 &mem_desc =
-          mem_list64_stream->MemoryRanges[i];
-      const lldb::addr_t range_start = mem_desc.StartOfMemoryRange;
-      const size_t range_size = mem_desc.DataSize;
-      if (range_start <= addr && addr < range_start + range_size) {
-        range_out->start = range_start;
-        range_out->size = range_size;
-        range_out->ptr =
-            reinterpret_cast<const uint8_t *>(m_base_addr) + base_rva;
-        return true;
-      }
-      base_rva += range_size;
-    }
-  }
-
-  return false;
-}
-
-Error ProcessWinMiniDump::Impl::MapMiniDumpIntoMemory() {
-  Error error;
-  const char *file = m_core_file.GetCString();
-  std::wstring wfile;
-  if (!llvm::ConvertUTF8toWide(file, wfile)) {
-    error.SetErrorString("Error converting path to UTF-16");
-    return error;
-  }
-  m_dump_file = ::CreateFileW(wfile.c_str(), GENERIC_READ, FILE_SHARE_READ,
-                              NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
-  if (m_dump_file == INVALID_HANDLE_VALUE) {
-    error.SetError(::GetLastError(), lldb::eErrorTypeWin32);
-    return error;
-  }
-
-  m_mapping =
-      ::CreateFileMappingW(m_dump_file, NULL, PAGE_READONLY, 0, 0, NULL);
-  if (m_mapping == NULL) {
-    error.SetError(::GetLastError(), lldb::eErrorTypeWin32);
-    return error;
-  }
-
-  m_base_addr = ::MapViewOfFile(m_mapping, FILE_MAP_READ, 0, 0, 0);
-  if (m_base_addr == nullptr) {
-    error.SetError(::GetLastError(), lldb::eErrorTypeWin32);
-    return error;
-  }
-
-  return error;
-}
-
-ArchSpec ProcessWinMiniDump::Impl::DetermineArchitecture() {
-  size_t size = 0;
-  auto system_info_ptr = static_cast<const MINIDUMP_SYSTEM_INFO *>(
-      FindDumpStream(SystemInfoStream, &size));
-  if (system_info_ptr) {
-    switch (system_info_ptr->ProcessorArchitecture) {
-    case PROCESSOR_ARCHITECTURE_INTEL:
-      if (system_info_ptr->ProcessorLevel == 6) {
-        return ArchSpec("i686-pc-windows");
-      } else {
-        return ArchSpec("i386-pc-windows");
-      }
-      break;
-    case PROCESSOR_ARCHITECTURE_AMD64:
-      return ArchSpec("x86_64-pc-windows");
-    default:
-      break;
-    }
-  }
-
-  return ArchSpec(); // invalid or unknown
-}
-
-void ProcessWinMiniDump::Impl::ReadExceptionRecord() {
-  size_t size = 0;
-  auto exception_stream_ptr = static_cast<MINIDUMP_EXCEPTION_STREAM *>(
-      FindDumpStream(ExceptionStream, &size));
-  if (exception_stream_ptr) {
-    m_exception_sp.reset(new ExceptionRecord(
-        exception_stream_ptr->ExceptionRecord, exception_stream_ptr->ThreadId));
-  } else {
-    WINLOG_IFALL(WINDOWS_LOG_PROCESS, "Minidump has no exception record.");
-    // TODO:  See if we can recover the exception from the TEB.
-  }
-}
-
-void ProcessWinMiniDump::Impl::ReadMiscInfo() {
-  size_t size = 0;
-  const auto misc_info_ptr =
-      static_cast<MINIDUMP_MISC_INFO *>(FindDumpStream(MiscInfoStream, &size));
-  if (!misc_info_ptr || size < sizeof(MINIDUMP_MISC_INFO)) {
-    return;
-  }
-
-  if ((misc_info_ptr->Flags1 & MINIDUMP_MISC1_PROCESS_ID) != 0) {
-    // This misc info record has the process ID.
-    m_self->SetID(misc_info_ptr->ProcessId);
-  }
-}
-
-void ProcessWinMiniDump::Impl::ReadModuleList() {
-  size_t size = 0;
-  auto module_list_ptr = static_cast<MINIDUMP_MODULE_LIST *>(
-      FindDumpStream(ModuleListStream, &size));
-  if (!module_list_ptr || module_list_ptr->NumberOfModules == 0) {
-    return;
-  }
-
-  for (ULONG32 i = 0; i < module_list_ptr->NumberOfModules; ++i) {
-    const auto &module = module_list_ptr->Modules[i];
-    const auto file_name = GetMiniDumpString(module.ModuleNameRva);
-    const auto file_spec = FileSpec(file_name, true);
-    if (FileSpec::Compare(file_spec, FileSpec("wow64.dll", false), false) ==
-        0) {
-      WINLOG_IFALL(WINDOWS_LOG_PROCESS, "Minidump is for a WOW64 process.");
-      m_is_wow64 = true;
-    }
-    ModuleSpec module_spec = file_spec;
-
-    lldb::ModuleSP module_sp = m_self->GetTarget().GetSharedModule(module_spec);
-    if (!module_sp) {
-      continue;
-    }
-    bool load_addr_changed = false;
-    module_sp->SetLoadAddress(m_self->GetTarget(), module.BaseOfImage, false,
-                              load_addr_changed);
-  }
-}
-
-void *ProcessWinMiniDump::Impl::FindDumpStream(unsigned stream_number,
-                                               size_t *size_out) const {
-  void *stream = nullptr;
-  *size_out = 0;
-
-  MINIDUMP_DIRECTORY *dir = nullptr;
-  if (::MiniDumpReadDumpStream(m_base_addr, stream_number, &dir, nullptr,
-                               nullptr) &&
-      dir != nullptr && dir->Location.DataSize > 0) {
-    assert(dir->StreamType == stream_number);
-    *size_out = dir->Location.DataSize;
-    stream = static_cast<void *>(static_cast<char *>(m_base_addr) +
-                                 dir->Location.Rva);
-  }
-
-  return stream;
-}
-
-std::string ProcessWinMiniDump::Impl::GetMiniDumpString(RVA rva) const {
-  std::string result;
-  if (!m_base_addr) {
-    return result;
-  }
-  auto md_string = reinterpret_cast<const MINIDUMP_STRING *>(
-      static_cast<const char *>(m_base_addr) + rva);
-  auto source_start = reinterpret_cast<const llvm::UTF16 *>(md_string->Buffer);
-  const auto source_length = ::wcslen(md_string->Buffer);
-  const auto source_end = source_start + source_length;
-  result.resize(UNI_MAX_UTF8_BYTES_PER_CODE_POINT *
-                source_length); // worst case length
-  auto result_start = reinterpret_cast<llvm::UTF8 *>(&result[0]);
-  const auto result_end = result_start + result.size();
-  llvm::ConvertUTF16toUTF8(&source_start, source_end, &result_start, result_end,
-                           llvm::ConversionFlags::strictConversion);
-  const auto result_size =
-      std::distance(reinterpret_cast<llvm::UTF8 *>(&result[0]), result_start);
-  result.resize(result_size); // shrink to actual length
-  return result;
-}
-
-ConstString ProcessWinMiniDump::GetPluginNameStatic() {
-  static ConstString g_name("win-minidump");
-  return g_name;
-}
-
-const char *ProcessWinMiniDump::GetPluginDescriptionStatic() {
-  return "Windows minidump plug-in.";
-}
-
-void ProcessWinMiniDump::Terminate() {
-  PluginManager::UnregisterPlugin(ProcessWinMiniDump::CreateInstance);
-}
-
-lldb::ProcessSP ProcessWinMiniDump::CreateInstance(lldb::TargetSP target_sp,
-                                                   lldb::ListenerSP listener_sp,
-                                                   const FileSpec *crash_file) {
-  lldb::ProcessSP process_sp;
-  if (crash_file) {
-    process_sp.reset(
-        new ProcessWinMiniDump(target_sp, listener_sp, *crash_file));
-  }
-  return process_sp;
-}
-
-bool ProcessWinMiniDump::CanDebug(lldb::TargetSP target_sp,
-                                  bool plugin_specified_by_name) {
-  // TODO(amccarth):  Eventually, this needs some actual logic.
-  return true;
-}
-
-ProcessWinMiniDump::ProcessWinMiniDump(lldb::TargetSP target_sp,
-                                       lldb::ListenerSP listener_sp,
-                                       const FileSpec &core_file)
-    : ProcessWindows(target_sp, listener_sp),
-      m_impl_up(new Impl(core_file, this)) {}
-
-ProcessWinMiniDump::~ProcessWinMiniDump() {
-  Clear();
-  // We need to call finalize on the process before destroying ourselves
-  // to make sure all of the broadcaster cleanup goes as planned. If we
-  // destruct this class, then Process::~Process() might have problems
-  // trying to fully destroy the broadcaster.
-  Finalize();
-}
-
-ConstString ProcessWinMiniDump::GetPluginName() {
-  return GetPluginNameStatic();
-}
-
-uint32_t ProcessWinMiniDump::GetPluginVersion() { return 1; }
-
-Error ProcessWinMiniDump::DoLoadCore() { return m_impl_up->DoLoadCore(); }
-
-DynamicLoader *ProcessWinMiniDump::GetDynamicLoader() {
-  if (m_dyld_ap.get() == NULL)
-    m_dyld_ap.reset(DynamicLoader::FindPlugin(
-        this, DynamicLoaderWindowsDYLD::GetPluginNameStatic().GetCString()));
-  return m_dyld_ap.get();
-}
-
-bool ProcessWinMiniDump::UpdateThreadList(ThreadList &old_thread_list,
-                                          ThreadList &new_thread_list) {
-  return m_impl_up->UpdateThreadList(old_thread_list, new_thread_list);
-}
-
-void ProcessWinMiniDump::RefreshStateAfterStop() {
-  if (!m_impl_up)
-    return;
-  return m_impl_up->RefreshStateAfterStop();
-}
-
-Error ProcessWinMiniDump::DoDestroy() { return Error(); }
-
-bool ProcessWinMiniDump::IsAlive() { return true; }
-
-bool ProcessWinMiniDump::WarnBeforeDetach() const {
-  // Since this is post-mortem debugging, there's no need to warn the user
-  // that quitting the debugger will terminate the process.
-  return false;
-}
-
-size_t ProcessWinMiniDump::ReadMemory(lldb::addr_t addr, void *buf, size_t size,
-                                      Error &error) {
-  // Don't allow the caching that lldb_private::Process::ReadMemory does
-  // since we have it all cached our our dump file anyway.
-  return DoReadMemory(addr, buf, size, error);
-}
-
-size_t ProcessWinMiniDump::DoReadMemory(lldb::addr_t addr, void *buf,
-                                        size_t size, Error &error) {
-  return m_impl_up->DoReadMemory(addr, buf, size, error);
-}
-
-Error ProcessWinMiniDump::GetMemoryRegionInfo(
-    lldb::addr_t load_addr, lldb_private::MemoryRegionInfo &info) {
-  return m_impl_up->GetMemoryRegionInfo(load_addr, info);
-}
-
-void ProcessWinMiniDump::Clear() { m_thread_list.Clear(); }
-
-void ProcessWinMiniDump::Initialize() {
-  static std::once_flag g_once_flag;
-
-  std::call_once(g_once_flag, []() {
-    PluginManager::RegisterPlugin(GetPluginNameStatic(),
-                                  GetPluginDescriptionStatic(), CreateInstance);
-  });
-}
-
-ArchSpec ProcessWinMiniDump::GetArchitecture() {
-  // TODO
-  return ArchSpec();
-}

source/Plugins/Process/Windows/MiniDump/ThreadWinMiniDump.h

-//===-- ThreadWinMiniDump.h -------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_ThreadWinMiniDump_h_
-#define liblldb_ThreadWinMiniDump_h_
-
-#include <string>
-
-#include "lldb/Core/DataExtractor.h"
-#include "lldb/Target/Thread.h"
-
-class ThreadWinMiniDump : public lldb_private::Thread {
-public:
-  ThreadWinMiniDump(lldb_private::Process &process, lldb::tid_t tid);
-
-  virtual ~ThreadWinMiniDump();
-
-  void RefreshStateAfterStop() override;
-
-  lldb::RegisterContextSP GetRegisterContext() override;
-
-  lldb::RegisterContextSP
-  CreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;
-
-  void ClearStackFrames() override;
-
-  void SetContext(const void *context);
-
-protected:
-  lldb::RegisterContextSP m_reg_context_sp;
-  class Data;
-  std::unique_ptr<Data> m_data; // for WinAPI-specific data
-
-  bool CalculateStopInfo() override;
-};
-
-#endif

source/Plugins/Process/Windows/MiniDump/ThreadWinMiniDump.cpp

-//===-- ThreadWinMiniDump.cpp -----------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "ThreadWinMiniDump.h"
-
-#include "lldb/Host/HostInfo.h"
-#include "lldb/Host/windows/windows.h"
-#include <DbgHelp.h>
-
-#include "ProcessWinMiniDump.h"
-#if defined(_WIN64)
-#include "x64/RegisterContextWindowsMiniDump_x64.h"
-#else
-#include "x86/RegisterContextWindowsMiniDump_x86.h"
-#endif
-
-using namespace lldb;
-using namespace lldb_private;
-
-// This is a minimal implementation in order to get something running.  It will
-// be fleshed out as more mini-dump functionality is added.
-
-class ThreadWinMiniDump::Data {
-public:
-  Data() : m_context(nullptr) {}
-  const CONTEXT *m_context;
-};
-
-ThreadWinMiniDump::ThreadWinMiniDump(lldb_private::Process &process,
-                                     lldb::tid_t tid)
-    : Thread(process, tid), m_data(new Data) {}
-
-ThreadWinMiniDump::~ThreadWinMiniDump() {}
-
-void ThreadWinMiniDump::RefreshStateAfterStop() {}
-
-lldb::RegisterContextSP ThreadWinMiniDump::GetRegisterContext() {
-  if (m_reg_context_sp.get() == NULL) {
-    m_reg_context_sp = CreateRegisterContextForFrame(NULL);
-  }
-  return m_reg_context_sp;
-}
-
-lldb::RegisterContextSP ThreadWinMiniDump::CreateRegisterContextForFrame(
-    lldb_private::StackFrame *frame) {
-  const uint32_t concrete_frame_idx =
-      (frame) ? frame->GetConcreteFrameIndex() : 0;
-  RegisterContextSP reg_ctx_sp;
-  ArchSpec arch = HostInfo::GetArchitecture();
-  switch (arch.GetMachine()) {
-  case llvm::Triple::x86:
-#if defined(_WIN64)
-// FIXME: This is a Wow64 process, create a RegisterContextWindows_Wow64
-#else
-    reg_ctx_sp.reset(new RegisterContextWindowsMiniDump_x86(
-        *this, concrete_frame_idx, m_data->m_context));
-#endif
-    break;
-  case llvm::Triple::x86_64:
-#if defined(_WIN64)
-    reg_ctx_sp.reset(new RegisterContextWindowsMiniDump_x64(
-        *this, concrete_frame_idx, m_data->m_context));
-#else
-// LLDB is 32-bit, but the target process is 64-bit.  We probably can't debug
-// this.
-#endif
-  default:
-    break;
-  }
-  return reg_ctx_sp;
-}
-
-void ThreadWinMiniDump::ClearStackFrames() {}
-
-void ThreadWinMiniDump::SetContext(const void *context) {
-  if (m_data) {
-    m_data->m_context = static_cast<const CONTEXT *>(context);
-  }
-}
-
-bool ThreadWinMiniDump::CalculateStopInfo() { return false; }

source/Plugins/Process/Windows/MiniDump/x64/RegisterContextWindowsMiniDump_x64.h

-//===-- RegisterContextWindowsMiniDump_x64.h --------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_RegisterContextWindowsMiniDump_x64_H_
-#define liblldb_RegisterContextWindowsMiniDump_x64_H_
-
-#include "Plugins/Process/Windows/Common/x64/RegisterContextWindows_x64.h"
-#include "lldb/lldb-forward.h"
-
-namespace lldb_private {
-
-class Thread;
-
-class RegisterContextWindowsMiniDump_x64 : public RegisterContextWindows_x64 {
-public:
-  RegisterContextWindowsMiniDump_x64(Thread &thread,
-                                     uint32_t concrete_frame_idx,
-                                     const CONTEXT *context);
-
-  virtual ~RegisterContextWindowsMiniDump_x64();
-
-  bool WriteRegister(const RegisterInfo *reg_info,
-                     const RegisterValue &reg_value) override;
-
-protected:
-  bool CacheAllRegisterValues() override;
-};
-}
-
-#endif // #ifndef liblldb_RegisterContextWindowsMiniDump_x64_H_

source/Plugins/Process/Windows/MiniDump/x64/RegisterContextWindowsMiniDump_x64.cpp

-//===-- RegisterContextWindowsMiniDump_x64.cpp ------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "lldb/Host/windows/windows.h"
-#include "lldb/lldb-private-types.h"
-
-#include "RegisterContextWindowsMiniDump_x64.h"
-
-using namespace lldb;
-
-namespace lldb_private {
-
-RegisterContextWindowsMiniDump_x64::RegisterContextWindowsMiniDump_x64(
-    Thread &thread, uint32_t concrete_frame_idx, const CONTEXT *context)
-    : RegisterContextWindows_x64(thread, concrete_frame_idx) {
-  if (context) {
-    m_context = *context;
-    m_context_stale = false;
-  }
-}
-
-RegisterContextWindowsMiniDump_x64::~RegisterContextWindowsMiniDump_x64() {}
-
-bool RegisterContextWindowsMiniDump_x64::WriteRegister(
-    const RegisterInfo * /* reg_info */,
-    const RegisterValue & /* reg_value */) {
-  return false;
-}
-
-bool RegisterContextWindowsMiniDump_x64::CacheAllRegisterValues() {
-  // Since this is post-mortem debugging, we either have the context or we
-  // don't.
-  return !m_context_stale;
-}
-
-} // namespace lldb_private

source/Plugins/Process/Windows/MiniDump/x86/RegisterContextWindowsMiniDump_x86.h

-//===-- RegisterContextWindowsMiniDump_x86.h ------------------------*- C++
-//-*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_RegisterContextWindowsMiniDump_x86_H_
-#define liblldb_RegisterContextWindowsMiniDump_x86_H_
-
-#include "Plugins/Process/Windows/Common/x86/RegisterContextWindows_x86.h"
-#include "lldb/lldb-forward.h"
-
-namespace lldb_private {
-
-class Thread;
-
-class RegisterContextWindowsMiniDump_x86 : public RegisterContextWindows_x86 {
-public:
-  RegisterContextWindowsMiniDump_x86(Thread &thread,
-                                     uint32_t concrete_frame_idx,
-                                     const CONTEXT *context);
-
-  virtual ~RegisterContextWindowsMiniDump_x86();
-
-  bool WriteRegister(const RegisterInfo *reg_info,
-                     const RegisterValue &reg_value) override;
-
-protected:
-  bool CacheAllRegisterValues() override;
-};
-}
-
-#endif // #ifndef liblldb_RegisterContextWindowsMiniDump_x86_H_

source/Plugins/Process/Windows/MiniDump/x86/RegisterContextWindowsMiniDump_x86.cpp

-//===-- RegisterContextWindowsMiniDump_x86.cpp ------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "lldb/Host/windows/windows.h"
-#include "lldb/lldb-private-types.h"
-
-#include "RegisterContextWindowsMiniDump_x86.h"
-
-using namespace lldb;
-
-namespace lldb_private {
-
-RegisterContextWindowsMiniDump_x86::RegisterContextWindowsMiniDump_x86(
-    Thread &thread, uint32_t concrete_frame_idx, const CONTEXT *context)
-    : RegisterContextWindows_x86(thread, concrete_frame_idx) {
-  if (context) {
-    m_context = *context;
-    m_context_stale = false;
-  }
-}
-
-RegisterContextWindowsMiniDump_x86::~RegisterContextWindowsMiniDump_x86() {}
-
-bool RegisterContextWindowsMiniDump_x86::WriteRegister(
-    const RegisterInfo * /* reg_info */,
-    const RegisterValue & /* reg_value */) {
-  return false;
-}
-
-bool RegisterContextWindowsMiniDump_x86::CacheAllRegisterValues() {
-  // Since this is post-mortem debugging, we either have the context or we
-  // don't.
-  return !m_context_stale;
-}
-
-} // namespace lldb_private