scripts/Makefile.kasan

   1 ifdef CONFIG_KASAN
   2 ifdef CONFIG_KASAN_INLINE
   3         call_threshold := 10000
   4 else
   5         call_threshold := 0
   6 endif
   7
   8 CFLAGS_KASAN_MINIMAL := -fsanitize=kernel-address
   9
  10 CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \
  11                 -fasan-shadow-offset=$(CONFIG_KASAN_SHADOW_OFFSET) \
  12                 --param asan-instrumentation-with-call-threshold=$(call_threshold))
  13
  14 ifeq ($(call cc-option, $(CFLAGS_KASAN_MINIMAL) -Werror),)
  15         $(warning Cannot use CONFIG_KASAN: \
  16             -fsanitize=kernel-address is not supported by compiler)
  17 else
  18     ifeq ($(CFLAGS_KASAN),)
  19         $(warning CONFIG_KASAN: compiler does not support all options.\
  20             Trying minimal configuration)
  21         CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL)
  22     endif
  23 endif
  24 endif