ifdef CONFIG_KASAN

ifdef CONFIG_KASAN_INLINE

call_threshold := 10000

else

call_threshold := 0

endif

CFLAGS_KASAN_MINIMAL := -fsanitize=kernel-address

CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \

-fasan-shadow-offset=$(CONFIG_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)

endif

else

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)

endif

endif

endif