[OE-core] [PATCH 2/2] tune-ppc[65]00.inc: Disable QEMU usermode usage

[Otavio Salvador]

On Fri, Sep 23, 2016 at 3:49 PM, Khem Raj <raj.khem at gmail.com> wrote:
> On Fri, Sep 23, 2016 at 9:43 AM, Otavio Salvador
> <otavio at ossystems.com.br> wrote:
>> The QEMU usermode fails with invalid instruction error when used with those tunes.
>>
>> The issue is being tracked in [YOCTO: #10304].
>>
>
> Does this option remove using particular SPE option when invoking QEMU
> in usermode ? if so there may be another issue where these
> instructions are emitted by compiler and they wont be emulated.
>
> What will this change do which fixes the problem ?
> from bug it seems it needs a Qemu with 32bit ABI, are we building that
> version of qemu-ppc

We are not, at this moment.

I did a local patch to enable it and test the usermode and it still
produces an exception at runtime:

http://termbin.com/9g6t

if we can fix the underlying issue, better, but disabling it allow for
better user experience in meanwhile.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
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