[PATCH v2] powerpc: Pass correct CPU reference to assembler

[Segher Boessenkool]

Hi!

On Fri, Dec 16, 2022 at 09:35:50AM +0100, Christophe Leroy wrote:
> The problem comes from the fact that CONFIG_PPC_E500MC is selected for
> both the e500mc (32 bits) and the e5500 (64 bits), and therefore the
> following makefile rule is wrong:
> 
>   cpu-as-$(CONFIG_PPC_E500MC)    += $(call as-option,-Wa$(comma)-me500mc)

Yes.

> Today we have CONFIG_TARGET_CPU which provides the identification of the
> expected CPU, it is used for GCC. Use it as well for the assembler.

Why do you use -Wa, at all for this?  The compiler should already pass
proper options always!

> +cpu-as-$(CONFIG_PPC_BOOK3S_64)	+= $(call as-option,-Wa$(comma)-many)

What is this for?  Using -many is a huge step back, it hides many
problems :-(


Segher