netdev - Re: [PATCH iproute2] bpf: indicate lderr when bpf_apply_relo

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Message-ID: <5952E6D9.3010201@iogearbox.net>
Date:   Wed, 28 Jun 2017 01:14:33 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Stephen Hemminger <stephen@...workplumber.org>
CC:     netdev@...r.kernel.org
Subject: Re: [PATCH iproute2] bpf: indicate lderr when bpf_apply_relo_data
 fails

On 06/28/2017 01:09 AM, Stephen Hemminger wrote:
> On Tue, 27 Jun 2017 02:48:36 +0200
> Daniel Borkmann <daniel@...earbox.net> wrote:
>
>> When LLVM wrongly generates a rodata relo entry (llvm BZ #33599),
>> then just bail out instead of probing for prog w/o reloc, which
>> will fail in this case anyway.
>>
>> Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
>
> Applied, but don't you want a reasonable error message.

Thanks, the error message in this case throws:

ELF contains non-map related relo data in entry <X> pointing to section <Y>! Compiler bug?!