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();
}
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))
{
result.SetErrorString("ProcessWindows can only be used to launch processes for debugging.");
return result;
}
m_session_data.reset(new ProcessWindowsData(launch_info));
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);
HostProcess process;
if (result.Success())
{
// 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)
{
process = debugger->GetProcess();
if (m_session_data->m_launch_error.Fail())
result = m_session_data->m_launch_error;
}
else
result.SetError(::GetLastError(), eErrorTypeWin32);
}
if (!result.Success())
return result;
// We've hit the initial stop. The private state should already be set to stopped as a result
// of encountering the breakpoint exception in ProcessWindows::OnDebugException.
launch_info.SetProcessID(process.GetProcessId());
SetID(process.GetProcessId());
return result;
}
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);
}