[Buildroot] [PATCH] ci20_defconfig: disable madd instructions to avoid FPU bug

[Thomas Petazzoni]

Hello,

On Fri, 21 Oct 2016 21:45:52 +0200, Arnout Vandecappelle wrote:

> > Ideally, we should mimic what we do on ARM, and only list in
> > "Target architecture variants" the cores and not the ISA. How many
> > vendors are doing MIPS cores, and how many cores are they doing?  
> 
>  I believe that for MIPS, every vendor uses their own core, and that there is an
> almost one-to-one mapping between SoC family and core. AFAIU it's only the
> instruction set that is standardized. My gcc supports 74 cores... Do we really
> want to add all of these?

Well, did you count for ARM? There are also many many cores supported
in gcc. Admittedly probably not 74 cores, indeed.

>  That said, now we already have a bit a mixed situation: we have a few
> processors and a few generic options in Config.in.mips. But I expect that
> Buildroot will often be used on SoCs where either Buildroot or GCC doesn't have
> a processor-specific option yet, so the generic ones will still be needed.

OK, fair enough. Then maybe they should be clearly separated by a
comment within the choice...endchoice block.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com