On Fri, May 05, 2017 at 08:05:09PM -0700, Nick Desaulniers wrote: > Clang does not support this machine dependent option. > > Older versions of GCC (pre 3.0) may not support this option, added in > 2000, but it's unlikely they can still compile the kernel. > > Signed-off-by: Nick Desaulniers <nick.desaulni...@gmail.com> > --- > arch/x86/Makefile | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/Makefile b/arch/x86/Makefile > index 4430dd489620..5a0ac8411792 100644 > --- a/arch/x86/Makefile > +++ b/arch/x86/Makefile > @@ -179,7 +179,7 @@ ifdef CONFIG_JUMP_LABEL > endif > > ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1) > - KBUILD_CFLAGS += -maccumulate-outgoing-args > + KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args,) > endif > > # Stackpointer is addressed different for 32 bit and 64 bit x86
It would be useful to add a comment in the Makefile above the KBUILD_CFLAGS line stating that clang doesn't support this flag. -- Josh
