linux-kernel - Re: pahole issues with Rust DWARF was: Re: [PATCH 1/1] pahole/Rust: Check that we're adding DW_TAG

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Date:   Mon, 13 Feb 2023 12:53:38 +0000
From:   Eric Curtin <ecurtin@...hat.com>
To:     Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc:     Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin Rodriguez Reboredo <yakoyoku@...il.com>,
        linux-kernel@...r.kernel.org, Neal Gompa <neal@...pa.dev>,
        bpf@...r.kernel.org, rust-for-linux@...r.kernel.org,
        Alexei Starovoitov <ast@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>, Yonghong Song <yhs@...com>
Subject: Re: pahole issues with Rust DWARF was: Re: [PATCH 1/1] pahole/Rust:
 Check that we're adding DW_TAG_member sorted by byte offset

On Mon, 13 Feb 2023 at 12:45, Miguel Ojeda
<miguel.ojeda.sandonis@...il.com> wrote:
>
> Hi Arnaldo,
>
> On Mon, Feb 13, 2023 at 1:09 PM Arnaldo Carvalho de Melo
> <arnaldo.melo@...il.com> wrote:
> >
> > The namespace.o seems to be ok:
>
> I saw the other message too -- this looks great, thanks a ton.
>
> > The core one needs work:
>
> If `core.o` works, then I think it is likely other things will work :)

Hi Guys,

I'll leave this to the experts, but if we get this to the point where
we are happy to enable again for Rust CUs, could we request another
version bump? It just makes it easier to integrate with the kernel
scripts when we want to enable again.

>
> I can try to extract the cases for those into simpler `.o` files, if
> you would find simpler test cases useful (perhaps for the test suite
> etc.).
>
> Cheers,
> Miguel
>