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SubjectRe: [PATCH 15/19] csky: Build infrastructure
Hi Arnd,

On Tue, Mar 27, 2018 at 09:38:56AM +0200, Arnd Bergmann wrote:
> Usually the way gcc handles this, either each CPU is a strict superset
> of another
> one, so you just need to specify the one with the smallest instruction set,
> or you have an option like -mcpu=generic that produces the common subset.
ck807 ck810 ck860 are diffrent architecture, so they can not be strict
superset and there is no option like '-mcpu=generic' in our gcc and

I know you want one vmlinux which could run on all ck807 ck810 ck860 with
different dts-setting. But now, may I keep current design for abiv1&abiv2?

In abiv3, we will take your advice seriously.

Best Regards
Guo Ren

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