linux-kernel - Re: Kernel build error on BTFIDS vmlinux

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Message-ID: <0ddf7bc5-be05-cc06-05d7-2778c53d023b@redhat.com>
Date:   Wed, 19 Aug 2020 16:34:30 +0100
From:   Nick Clifton <nickc@...hat.com>
To:     Mark Wielaard <mark@...mp.org>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Jiri Olsa <jolsa@...hat.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>, sdf@...gle.com,
        andriin@...com
Subject: Re: Kernel build error on BTFIDS vmlinux

Hi Mark,

> Adding Nick, the binutils maintainer, so we can make sure
> binutils/elfutils agree on some ELF section compression corner case.

Thanks for doing this.

> But it would obviously be better if that wasn't necessary. So I'll try
> to fix libelf so that if it fixes up the alignment when reading the
> compressed data, it also does that when writing out the data again. But
> that would only help for a new version of elfutils.
> 
> So it would be nice if binutils ld could also be fixed to write out
> compressed sections with the correct alignment.

OK, I will look into doing this.

By any chance is there a small test case that you are using to check
this behaviour ?   If so, please may I have a copy for myself ?

Cheers
  Nick