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Date: Sun, 15 Dec 2019 09:42:34 -0800 From: Alexei Starovoitov <alexei.starovoitov@...il.com> To: Andrii Nakryiko <andrii.nakryiko@...il.com> Cc: Thadeu Lima de Souza Cascardo <cascardo@...onical.com>, Justin Forbes <jmforbes@...uxtx.org>, Daniel Borkmann <daniel@...earbox.net>, Song Liu <songliubraving@...com>, Andrii Nakryiko <andriin@...com>, Alexei Starovoitov <ast@...nel.org>, LKML <linux-kernel@...r.kernel.org>, "open list:BPF (Safe dynamic programs and tools)" <netdev@...r.kernel.org>, Yonghong Song <yhs@...com>, "open list:BPF (Safe dynamic programs and tools)" <bpf@...r.kernel.org>, ppc-dev <linuxppc-dev@...ts.ozlabs.org>, Martin KaFai Lau <kafai@...com>, Aurelien Jarno <aurelien@...el32.net>, debian-kernel@...ts.debian.org Subject: Re: [PATCH] libbpf: Fix readelf output parsing for Fedora On Fri, Dec 13, 2019 at 9:02 AM Andrii Nakryiko <andrii.nakryiko@...il.com> wrote: > > On Fri, Dec 13, 2019 at 2:11 AM Thadeu Lima de Souza Cascardo > <cascardo@...onical.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@...el32.net> > > Fixes: 3464afdf11f9 (libbpf: Fix readelf output parsing on powerpc with recent binutils) > > Reported-by: Justin Forbes <jmforbes@...uxtx.org> > > Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@...onical.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@...com> Applied. Thanks
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