Re: arch/mips/sgi-ip22/Platform:29: *** gcc doesn't support needed option -mr10k-cache-barrier=store. Stop.

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On Wed, Apr 09, 2014 at 03:32:29PM +0200, Thomas Bogendoerfer wrote:
> On Wed, Apr 09, 2014 at 10:24:45AM +0200, Florian Lohoff wrote:
> > Most likely they never made it into gcc upstream but they are
> > necessary working around the r10k speculative stores on non
> > cache coherent machines like the IP28.
> 
> IMHO the patch went upstream judging from the incremental patches
> here http://gcc.gnu.org/ml/gcc-patches/2012-12/msg01371.html.
> 
> Iirc it went into 4.4.0.

That's interesting. I'm using the cross compiler

        gcc-4.6.3-nolibc/mips-linux

downloaded from

        https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/

I notice there is also a mips64 compiler. Should I use that?

Thanks,
Fengguang


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