Index: arch/ppc64/src/proc/scheduler.c
===================================================================
--- arch/ppc64/src/proc/scheduler.c	(revision 9055bd1e382317fb80de95de7307da53453a4289)
+++ arch/ppc64/src/proc/scheduler.c	(revision 0ddeabc57b1d75f43de34a8874ed2d9af0416f7e)
@@ -35,4 +35,10 @@
 __address supervisor_sp_physical;
 
+/** Perform ppc64 specific tasks needed before the new task is run. */
+void before_task_runs_arch(void)
+{
+}
+
+/** Perform ppc64 specific tasks needed before the new thread is scheduled. */
 void before_thread_runs_arch(void)
 {