[OE-core] [PATCH 1/1] tune-mips32: Update the default MIPS tuning to be mips32

Phil Blundell philb at gnu.org
Tue Apr 10 12:37:06 UTC 2012

On Tue, 2012-04-10 at 13:35 +0100, Phil Blundell wrote:
> On Mon, 2012-04-09 at 18:31 -0500, Mark Hatle wrote:
> > Previously the default mips tuning was defined as "mips1"
> > internally in the compiler.  Revise this and change to "mips32".
> > 
> > This eliminates the need for the mips32 specific tunings, which were
> > not being used anyway.  (They exists and were used, but were not
> > differentiated by package arch prior to a recent commit.)
> This change is slightly more far-reaching than the description above
> suggests, in that it isn't just changing the default tuning: it seems
> actually to remove the ability to tune for pre-mips32 altogether.
> Obviously there's nothing to stop anybody creating tune files for
> earlier MIPS in some other BSP layer, but this is a feature that exists
> in oe-core today and would be removed by this patch.

I also meant to ask: just to be absolutely clear, will MIPS32-tuned code
still run on older cores?  That is, if someone is targetting (say) MIPS
IV today, is this going to break their system?


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