On 01/19/2018 05:54 PM, Andrey Konovalov wrote:
> diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan > index dbbd4382f15a..db473309f136 100644 > --- a/scripts/Makefile.kasan > +++ b/scripts/Makefile.kasan > @@ -39,4 +39,7 @@ else > endif > > CFLAGS_KASAN += $(call cc-option, -fsanitize-address-use-after-scope) > + > +CFLAGS_KASAN_NOSANITIZE := $(call cc-option, -fno-builtin) > + I think it should be fine to drop cc-option here. Even ancient versions of GCC have -fno-builtin. > endif > diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib > index 1ca4dcd2d500..015aa9dbad86 100644 > --- a/scripts/Makefile.lib > +++ b/scripts/Makefile.lib > @@ -121,7 +121,7 @@ endif > ifeq ($(CONFIG_KASAN),y) > _c_flags += $(if $(patsubst n%,, \ > $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \ > - $(CFLAGS_KASAN)) > + $(CFLAGS_KASAN), $(CFLAGS_KASAN_NOSANITIZE)) > endif > > ifeq ($(CONFIG_UBSAN),y) >
