linux-kernel - Re: [PATCH 0/3] Dynptr Verifier Adjustments

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Message-ID: <CA+PiJmTsEsUi3c5soodZHxS_PvMPnJG-4bFvdfpLq-kPZ0j4UQ@mail.gmail.com>
Date:   Thu, 27 Apr 2023 16:36:18 -0700
From:   Daniel Rosenberg <drosen@...gle.com>
To:     Andrii Nakryiko <andrii.nakryiko@...il.com>
Cc:     bpf@...r.kernel.org, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        John Fastabend <john.fastabend@...il.com>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <martin.lau@...ux.dev>,
        Song Liu <song@...nel.org>, Yonghong Song <yhs@...com>,
        KP Singh <kpsingh@...nel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
        Shuah Khan <shuah@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Joanne Koong <joannelkoong@...il.com>,
        Mykola Lysenko <mykolal@...com>, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, kernel-team@...roid.com
Subject: Re: [PATCH 0/3] Dynptr Verifier Adjustments

On Wed, Apr 26, 2023 at 4:39 PM Andrii Nakryiko
<andrii.nakryiko@...il.com> wrote:
>
> Don't know, show the sequence of commands you are running?
>
> I have linux source in ~/linux, and KBUILD_OUTPUT set to
> ~/linux-build/default. And it only takes this:
>
> $ cd ~/linux
> $ make -j90 # build kernel
> $ cd tools/testing/selftests/bpf
> $ make -j90 # build selftests
>
> And that's it.

I've tried the same, modulo some paths. I'm pretty sure it's version
related at this point.
The current issue I'm seeing is "error: indirect call in function,
which are not supported by eBPF" when using GCC-BPF for
progs/bind4_prog.c

Currently using clang 16.0.0 and gcc 12.2.0-14.
I did manage to get it to build by just commenting out TEST_GEN_PROGS
+= test_progs-bpf_gcc