blob: 631619b2b118996277d45b2843a4a1469644477c [file] [log] [blame]
Andrey Ryabinin0b24bec2015-02-13 14:39:17 -08001ifdef CONFIG_KASAN
2ifdef CONFIG_KASAN_INLINE
3 call_threshold := 10000
4else
5 call_threshold := 0
6endif
7
8CFLAGS_KASAN_MINIMAL := -fsanitize=kernel-address
9
10CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \
11 -fasan-shadow-offset=$(CONFIG_KASAN_SHADOW_OFFSET) \
Andrey Ryabininbebf56a2015-02-13 14:40:17 -080012 --param asan-stack=1 --param asan-globals=1 \
Andrey Ryabinin0b24bec2015-02-13 14:39:17 -080013 --param asan-instrumentation-with-call-threshold=$(call_threshold))
14
15ifeq ($(call cc-option, $(CFLAGS_KASAN_MINIMAL) -Werror),)
16 $(warning Cannot use CONFIG_KASAN: \
17 -fsanitize=kernel-address is not supported by compiler)
18else
19 ifeq ($(CFLAGS_KASAN),)
20 $(warning CONFIG_KASAN: compiler does not support all options.\
21 Trying minimal configuration)
22 CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL)
23 endif
24endif
25endif