1 2 3 4 5 6 7 8 9 10 11 12
--- a/Makefile +++ b/Makefile @@ -566,6 +566,9 @@ endif NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) CHECKFLAGS += $(NOSTDINC_FLAGS) +# improve gcc optimization +CFLAGS += $(call cc-option,-funit-at-a-time,) + # warn about C99 declaration after statement KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)