On Mon, Dec 16, 2019 at 02:17:16PM +0530, Amit Daniel Kachhap wrote: > diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include > index d4adfbe..cc465dd 100644 > --- a/scripts/Kconfig.include > +++ b/scripts/Kconfig.include > @@ -31,6 +31,10 @@ cc-option = $(success,$(CC) -Werror $(CLANG_FLAGS) $(1) -E -x c /dev/null -o /de > # Return y if the linker supports <flag>, n otherwise > ld-option = $(success,$(LD) -v $(1)) > > +# $(as-option,<flag>) > +# Return y if the assembler supports <flag>, n otherwise > +as-option = $(success, $(CC) $(CLANG_FLAGS) $(1) -E -x assembler /dev/null -o /dev/null) I had different experiments with this for MTE and noticed that clang does not honour the -Wa, option (which you use in a subsequent patch). So not sure how useful as-option is. -- Catalin
