[PATCH] libbpf: Fix readelf output parsing for Fedora

[Alexei Starovoitov]

On Fri, Dec 13, 2019 at 9:02 AM Andrii Nakryiko
<andrii.nakryiko at gmail.com> wrote:
>
> On Fri, Dec 13, 2019 at 2:11 AM Thadeu Lima de Souza Cascardo
> <cascardo at canonical.com> wrote:
> >
> > Fedora binutils has been patched to show "other info" for a symbol at the
> > end of the line. This was done in order to support unmaintained scripts
> > that would break with the extra info. [1]
> >
> > [1] https://src.fedoraproject.org/rpms/binutils/c/b8265c46f7ddae23a792ee8306fbaaeacba83bf8
> >
> > This in turn has been done to fix the build of ruby, because of checksec.
> > [2] Thanks Michael Ellerman for the pointer.
> >
> > [2] https://bugzilla.redhat.com/show_bug.cgi?id=1479302
> >
> > As libbpf Makefile is not unmaintained, we can simply deal with either
> > output format, by just removing the "other info" field, as it always comes
> > inside brackets.
> >
> > Cc: Aurelien Jarno <aurelien at aurel32.net>
> > Fixes: 3464afdf11f9 (libbpf: Fix readelf output parsing on powerpc with recent binutils)
> > Reported-by: Justin Forbes <jmforbes at linuxtx.org>
> > Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo at canonical.com>
> > ---
>
> I was briefly playing with it and trying to make it use nm to dump
> symbols, instead of parsing more human-oriented output of readelf, but
> somehow nm doesn't output symbols with @@LIBBPF.* suffix at the end,
> so I just gave up. So I think this one is good.
>
> This should go through bpf-next tree.
>
> Acked-by: Andrii Nakryiko <andriin at fb.com>

Applied. Thanks