ifdef CONFIG_KASANifdef CONFIG_KASAN_INLINE	call_threshold := 10000else	call_threshold := 0endif KASAN_SHADOW_OFFSET ?= $(CONFIG_KASAN_SHADOW_OFFSET) CFLAGS_KASAN_MINIMAL := -fsanitize=kernel-address CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \		-fasan-shadow-offset=$(KASAN_SHADOW_OFFSET) \		--param asan-stack=1 --param asan-globals=1 \		--param asan-instrumentation-with-call-threshold=$(call_threshold)) ifeq ($(call cc-option, $(CFLAGS_KASAN_MINIMAL) -Werror),)   ifneq ($(CONFIG_COMPILE_TEST),y)        $(warning Cannot use CONFIG_KASAN: \            -fsanitize=kernel-address is not supported by compiler)   endifelse    ifeq ($(CFLAGS_KASAN),)        ifneq ($(CONFIG_COMPILE_TEST),y)            $(warning CONFIG_KASAN: compiler does not support all options.\                Trying minimal configuration)        endif        CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL)    endifendif CFLAGS_KASAN += $(call cc-option, -fsanitize-address-use-after-scope)endif