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Re: [RFC PATCH] docs/system/deprecated: mark ppc64abi32-linux-user for deprecation



On 9/4/20 10:21 AM, Peter Maydell wrote:
> On Fri, 4 Sep 2020 at 17:52, Alex Bennée <alex bennee linaro org> wrote:
>>
>> It's buggy and we are not sure anyone uses it.
> 
>> +``ppc64abi32`` CPUs (since 5.2.0)
>> +'''''''''''''''''''''''''''''''''
>> +
>> +The ``ppc64abi32`` architecture has a number of issues which regularly
>> +trip up our CI testing and is suspected to be quite broken.
>> +Furthermore the maintainers are unsure what the correct behaviour
>> +should be and strongly suspect no one actually uses it.
> 
> IRC discussion suggests we do know what the correct behaviour
> is -- it should be "what the compat32 interface of a 64-bit
> PPC kernel gives you", it's just that the code doesn't do that
> (and never has?). It's like the mipsn32, mipsn32el, sparc32plus
> ABIs which we also implement (hopefully correctly...)
> 
> But "this has always been broken and nobody complained" is
> a good reason to deprecate anyway.

Indeed.  With the last sentence changed to

"For that reason the maintainers strongly suspect no one actually uses it."

Reviewed-by: Richard Henderson <richard henderson linaro org>

r~


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