Hi Kristina, On 05/10/18 09:47, Kristina Martsenko wrote: > diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile > index 106039d25e2f..dbcd43ea99d8 100644 > --- a/arch/arm64/Makefile > +++ b/arch/arm64/Makefile > @@ -56,6 +56,10 @@ KBUILD_AFLAGS += $(lseinstr) $(brokengasinst) > KBUILD_CFLAGS += $(call cc-option,-mabi=lp64) > KBUILD_AFLAGS += $(call cc-option,-mabi=lp64) > > +ifeq ($(CONFIG_ARM64_PTR_AUTH),y) > +KBUILD_CFLAGS += -msign-return-address=all > +endif Should not it be done via cc-option so old toolchains keep working [1]? [1] $ aarch64-linux-gnu-gcc --version aarch64-linux-gnu-gcc (Linaro GCC 2014.11) 4.9.3 20141031 (prerelease) Copyright (C) 2014 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. $ aarch64-linux-gnu-gcc -msign-return-address=all aarch64-linux-gnu-gcc: error: unrecognized command line option '-msign-return-address=all' ... Cheers Vladimir
