@@ -93,10 +93,13 @@ public: void overflow_check(int required_words, TRAPS); static void handle_overflow(TRAPS); public: + void zap(int c) PRODUCT_RETURN; + + public: static ByteSize base_offset() { return byte_offset_of(ZeroStack, _base); } static ByteSize top_offset() { return byte_offset_of(ZeroStack, _top);