--- /usr/portage/x11-base/xorg-server/files/xdm.initd-10	2013-09-26 11:23:33.000000000 -0400
+++ /etc/init.d/xdm	2014-02-16 19:28:12.518005903 -0500
@@ -106,6 +106,11 @@
 			PIDFILE=/run/lightdm.pid
 			START_STOP_ARGS="--background"
 			;;
+		sddm)
+			EXE="/usr/bin/sddm"
+			START_STOP_ARGS="-m --background"
+			PIDFILE=/run/sddm.pid
+			;;
 		*)
 			# first find out if there is such executable
 			EXE="$(command -v ${MY_XDM} 2>/dev/null)"