diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index 450fa59..a3aef5d 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -37,3 +37,5 @@
 #define __cold			__attribute__((__cold__))
 
 #endif
+
+#define __compiletime_object_size(obj) __builtin_object_size(obj, 0)