linux-kernel - Re: [PATCH v7 34/39] kselftest/arm64: Add a GCS test program built with the system libc

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Date: Sat, 16 Dec 2023 23:18:13 -0300
From: Thiago Jung Bauermann <thiago.bauermann@...aro.org>
To: Mark Brown <broonie@...nel.org>
Cc: Catalin Marinas <catalin.marinas@....com>, Will Deacon
 <will@...nel.org>, Jonathan Corbet <corbet@....net>, Andrew Morton
 <akpm@...ux-foundation.org>, Marc Zyngier <maz@...nel.org>, Oliver Upton
 <oliver.upton@...ux.dev>, James Morse <james.morse@....com>, Suzuki K
 Poulose <suzuki.poulose@....com>, Arnd Bergmann <arnd@...db.de>, Oleg
 Nesterov <oleg@...hat.com>, Eric Biederman <ebiederm@...ssion.com>, Kees
 Cook <keescook@...omium.org>, Shuah Khan <shuah@...nel.org>, "Rick P.
 Edgecombe" <rick.p.edgecombe@...el.com>, Deepak Gupta
 <debug@...osinc.com>, Ard Biesheuvel <ardb@...nel.org>, Szabolcs Nagy
 <Szabolcs.Nagy@....com>, "H.J. Lu" <hjl.tools@...il.com>, Paul Walmsley
 <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, Albert Ou
 <aou@...s.berkeley.edu>, Florian Weimer <fweimer@...hat.com>, Christian
 Brauner <brauner@...nel.org>, linux-arm-kernel@...ts.infradead.org,
 linux-doc@...r.kernel.org, kvmarm@...ts.linux.dev,
 linux-fsdevel@...r.kernel.org, linux-arch@...r.kernel.org,
 linux-mm@...ck.org, linux-kselftest@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v7 34/39] kselftest/arm64: Add a GCS test program built
 with the system libc

Mark Brown <broonie@...nel.org> writes:

>> Also, it's strange that the tests defined after map_gcs.stack_overflow
>> don't run when I execute this test program. I'm doing:
>
>> $ ./run_kselftest.sh -t arm64:libc-gcs
>
>> I.e., these tests aren't being run in my FVP:
>
>> > +FIXTURE_VARIANT_ADD(map_invalid_gcs, too_small)
>> > +FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_1)
>> > +FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_2)
>> > +FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_3)
>> > +FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_4)
>> > +FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_5)
>> > +FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_6)
>> > +FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_7)
>> > +TEST_F(map_invalid_gcs, do_map)
>> > +FIXTURE_VARIANT_ADD(invalid_mprotect, exec)
>> > +FIXTURE_VARIANT_ADD(invalid_mprotect, bti)
>> > +FIXTURE_VARIANT_ADD(invalid_mprotect, exec_bti)
>> > +TEST_F(invalid_mprotect, do_map)
>> > +TEST_F(invalid_mprotect, do_map_read)
>
> I'm seeing all of those appearing.  I'm not sure what to say there -
> that's all kselftest framework stuff, I'd expect the framework to say
> something about what it's doing if it decides to skip and I can't think
> why it would decide to skip.

Thanks. I'll poke some more to see if I can figure out what's going on.

-- 
Thiago