diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 7de2ff6e565..674d2041bd7 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,9 @@
+2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR libgcc/85379
+	* config/i386/morestack.S (__stack_split_initialize): Add
+	_CET_ENDBR.
+
 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
 
 	* configure: Regenerated.
diff --git a/libgcc/config/i386/morestack.S b/libgcc/config/i386/morestack.S
index eca441a2867..99e65eaaff4 100644
--- a/libgcc/config/i386/morestack.S
+++ b/libgcc/config/i386/morestack.S
@@ -730,6 +730,7 @@ __morestack_large_model:
 #endif
 
 __stack_split_initialize:
+	_CET_ENDBR
 
 #ifndef __x86_64__