diff --git a/src/include/compiler.h b/src/include/compiler.h
index e79f9fb2..32416a56 100644
--- a/src/include/compiler.h
+++ b/src/include/compiler.h
@@ -291,6 +291,13 @@ extern void dbg_hex_dump_da ( unsigned long dispaddr,
  */
 #define __const __attribute__ (( const ))
 
+/**
+ * Declare a function's pointer parameters as non-null - i.e. force
+ * compiler to check pointers at compile time and enable possible
+ * optimizations based on that fact
+ */
+#define __nonnull __attribute__ (( nonnull ))
+
 /**
  * Declare a function as used.
  *