Remove the restriction that backend commands can only be executed when a target is running

Author: xusheng6

core/adapters/dbgengadapter.cpp

@@ -998,9 +998,12 @@ uint64_t DbgEngAdapter::ExitCode()
 
 std::string DbgEngAdapter::InvokeBackendCommand(const std::string& command)
 {
-    this->m_debugControl->Execute(DEBUG_OUTCTL_ALL_CLIENTS, command.c_str(), DEBUG_EXECUTE_NO_REPEAT);
-	m_debugClient->ExitDispatch(reinterpret_cast<PDEBUG_CLIENT>(m_debugClient));
-	// The output is handled by DbgEngOutputCallbacks::Output()
+    if (m_debugControl)
+    {
+        this->m_debugControl->Execute(DEBUG_OUTCTL_ALL_CLIENTS, command.c_str(), DEBUG_EXECUTE_NO_REPEAT);
+        m_debugClient->ExitDispatch(reinterpret_cast<PDEBUG_CLIENT>(m_debugClient));
+        // The output is handled by DbgEngOutputCallbacks::Output()
+    }
 	return "";
 }
 

core/debuggercontroller.cpp

@@ -1140,11 +1140,10 @@ void DebuggerController::WriteStdIn(const std::string message)
 
 std::string DebuggerController::InvokeBackendCommand(const std::string &cmd)
 {
-	if (m_adapter && m_state->IsConnected())
-	{
+    if (m_adapter)
 		return m_adapter->InvokeBackendCommand(cmd);
-	}
-	return "Error: target is not running yet\n";
+
+    return "Error: invalid adapter\n";
 }