1*4882a593Smuzhiyunifdef CONFIG_KASAN 2*4882a593Smuzhiyunifdef CONFIG_KASAN_INLINE 3*4882a593Smuzhiyun call_threshold := 10000 4*4882a593Smuzhiyunelse 5*4882a593Smuzhiyun call_threshold := 0 6*4882a593Smuzhiyunendif 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunKASAN_SHADOW_OFFSET ?= $(CONFIG_KASAN_SHADOW_OFFSET) 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunCFLAGS_KASAN_MINIMAL := -fsanitize=kernel-address 11*4882a593Smuzhiyun 12*4882a593SmuzhiyunCFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \ 13*4882a593Smuzhiyun -fasan-shadow-offset=$(KASAN_SHADOW_OFFSET) \ 14*4882a593Smuzhiyun --param asan-stack=1 --param asan-globals=1 \ 15*4882a593Smuzhiyun --param asan-instrumentation-with-call-threshold=$(call_threshold)) 16*4882a593Smuzhiyun 17*4882a593Smuzhiyunifeq ($(call cc-option, $(CFLAGS_KASAN_MINIMAL) -Werror),) 18*4882a593Smuzhiyun ifneq ($(CONFIG_COMPILE_TEST),y) 19*4882a593Smuzhiyun $(warning Cannot use CONFIG_KASAN: \ 20*4882a593Smuzhiyun -fsanitize=kernel-address is not supported by compiler) 21*4882a593Smuzhiyun endif 22*4882a593Smuzhiyunelse 23*4882a593Smuzhiyun ifeq ($(CFLAGS_KASAN),) 24*4882a593Smuzhiyun ifneq ($(CONFIG_COMPILE_TEST),y) 25*4882a593Smuzhiyun $(warning CONFIG_KASAN: compiler does not support all options.\ 26*4882a593Smuzhiyun Trying minimal configuration) 27*4882a593Smuzhiyun endif 28*4882a593Smuzhiyun CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL) 29*4882a593Smuzhiyun endif 30*4882a593Smuzhiyunendif 31*4882a593Smuzhiyun 32*4882a593SmuzhiyunCFLAGS_KASAN_NOSANITIZE := -fno-builtin 33*4882a593Smuzhiyun 34*4882a593Smuzhiyunendif 35