linux-kernel - Re: [PATCH bpf-next] selftests/bpf: fix build-id for liburandom

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Message-ID: <CAEf4BzZO+4znx4VzQ9LwzFXv0=NfQL4DKBZCGB36ojYNbRoCzQ@mail.gmail.com>
Date:   Fri, 4 Nov 2022 15:58:43 -0700
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Daniel Borkmann <daniel@...earbox.net>
Cc:     KP Singh <kpsingh@...nel.org>, Artem Savkov <asavkov@...hat.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>, bpf@...r.kernel.org,
        netdev@...r.kernel.org, ykaliuta@...hat.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next] selftests/bpf: fix build-id for liburandom_read.so

On Fri, Nov 4, 2022 at 10:38 AM Daniel Borkmann <daniel@...earbox.net> wrote:
>
> Hi Artem,
>
> On 11/4/22 2:29 PM, KP Singh wrote:
> > On Fri, Nov 4, 2022 at 10:41 AM Artem Savkov <asavkov@...hat.com> wrote:
> >>
> >> lld produces "fast" style build-ids by default, which is inconsistent
> >> with ld's "sha1" style. Explicitly specify build-id style to be "sha1"
> >> when linking liburandom_read.so the same way it is already done for
> >> urandom_read.
> >>
> >> Signed-off-by: Artem Savkov <asavkov@...hat.com>
> >
> > Acked-by: KP Singh <kpsingh@...nel.org>
> >
> > This was done in
> > https://lore.kernel.org/bpf/20200922232140.1994390-1-morbo@google.com
>
> When you say "fix", does it actually fix a failing test case or is it more
> of a cleanup to align liburandom_read build with urandom_read? From glancing
> at the code, we only check build id for urandom_read.

I reworded the subject to "selftests/bpf: Use consistent build-id type
for liburandom_read.so" and pushed. Thanks!

>
> Cheers,
> Daniel