diff options
Diffstat (limited to 'scripts/Makefile.kasan')
| -rw-r--r-- | scripts/Makefile.kasan | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan new file mode 100644 index 000000000000..631619b2b118 --- /dev/null +++ b/scripts/Makefile.kasan @@ -0,0 +1,25 @@ +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),) + $(warning Cannot use CONFIG_KASAN: \ + -fsanitize=kernel-address is not supported by compiler) +else + ifeq ($(CFLAGS_KASAN),) + $(warning CONFIG_KASAN: compiler does not support all options.\ + Trying minimal configuration) + CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL) + endif +endif +endif |