Re: Mips-arc tests ever work?

[John Paul Adrian Glaubitz]

On 12/5/20 8:10 PM, Glenn Washburn wrote:
>> I'm running manual tests for all architectures before each release.
> 
> What exactly are manual tests?  Is that running manually the tests for
> that target? (ie "make check" for that target)

Yes. I'm test-compiling GRUB natively, run "make check" and also perform
test installations in some cases.

> Also what version of qemu are you running to do the tests?

I'm performing all tests on real hardware. I have access to all architectures
supported by GRUB either through my personal hardware zoo, the Debian project
of which I am member of or the GCC compile farm for which I am also providing
hardware.

You are free to register for the GCC compile farm and use it yourself [1].

>> I could not find any reference to "indy" in the qemu git log. Are you
>> sure it was ever officially supported? I assume the tests here were
>> run on real hardware.
> 
> Take a look in "tests/util/grub-shell.in" and you'll find the offending
> test code in grub.  I have no clue either way whether it was ever
> supported, but someone obviously did because its in the test code.  And
> that someone might be Vladimir (phcoder) who committed the code.  This
> is why I'm wondering if it ever worked.

Maybe he used a fork of qemu for these tests.

>>> According to wikipedia the SGI Indy originally used R4k processors.
>>> So would machine type mips be the one to use since its description
>>> says "mips r4k platform"?
>>
>> No, that was a different, generic machine type, see [1].
> 
> I'm confused by this response.  My qemu doesn't list a "r4k" machine
> type and its version 4.2.1.  The machine type "mips" says its the r4k
> platform, but that doesn't look like what's being removed in that
> commit.  Reviewing the hw/mips/Kconfig, it looks like the machine types
> have changed a lot since 4.2.1, so maybe it was renamed to "r4k"
> (haven't checked yet).  However if it was renamed and is being removed,
> that's going to cause further problems (when/if we use qemu 5.2 for
> testing) because grub-shell is using the "mips" machine type for
> "mips-qemu_mips" and "mipsel-qemu_mips".

Well, either way, the r4k machine no longer exists in QEMU 5.2.

>>> So can anyone familiar with this tell me an appropriate machine
>>> type of the above listed to use instead of indy?  Perhaps Vladimir
>>> who committed that code can chime in?
> 
> Ultimately, I just want to know what machine should I use if not indy
> for the "mips-arc" target?  I know very little about mips and what an
> appropriate machine type would be for emulating this target.

I guess "malta" would work, too.

Adrian

> [1] https://gcc.gnu.org/wiki/CompileFarm

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@debian.org
`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
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