mips: Make mips64 n32/o32 userland possible or remove support completely

[Rosen Penev]

On Wed, Jul 19, 2023 at 1:29 AM Jeffery To <jeffery.to at gmail.com> wrote:
>
> Hi,
>
> I've been looking into platform triplets for Python and figuring out
> the possible combinations. This has led me to trying to compile images
> of the possible combinations for testing.
>
> As a result, I've been trying to compile malta/be64 with n32/o32
> userland. I haven't been successful so far but before trying to fix
> all the issues, I wanted to take a step back and ask a more general
> question.
>
> I see there is the option to select mips64 ABI in toolchain/Config.in.
> On the other hand, there are commits like 46af22de16b2 ("kernel:
> Remove CONFIG_COMPAT") and 38666e8ae42d ("malta: Deactivate MIPS O32
> and N32 support") (and also the recent discussion with amd64 x32
> support).
>
> Is there a preference to make n32/o32 userland optional/possible, and
> so I should continue trying to get it to work? Or is the preference to
> remove support completely, so I should submit patches to do so?
I think remove support.

Ideally some of these mips platforms should use a more common set of
binaries, but there seems to be no one trying that.
>
> Thanks,
> Jeff
>
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