From: Jesper Dangaard Brouer <brouer@redhat.com>
To: Daniel Borkmann <daniel@iogearbox.net>
Cc: netdev@vger.kernel.org, Daniel Borkmann <borkmann@iogearbox.net>,
Alexei Starovoitov <alexei.starovoitov@gmail.com>,
wangnan0@huawei.com, jakub.kicinski@netronome.com, joe@ovn.org,
acme@redhat.com, eric@regit.org, yhs@fb.com, brouer@redhat.com
Subject: Re: [bpf-next V3 PATCH 0/5] tools/libbpf improvements and selftests
Date: Fri, 9 Feb 2018 09:18:47 +0100 [thread overview]
Message-ID: <20180209091847.71b7e9f8@redhat.com> (raw)
In-Reply-To: <09906a95-00ed-949d-6287-c78babf20dca@iogearbox.net>
On Fri, 9 Feb 2018 02:32:27 +0100
Daniel Borkmann <daniel@iogearbox.net> wrote:
> On 02/08/2018 12:48 PM, Jesper Dangaard Brouer wrote:
> > While playing with using libbpf for the Suricata project, we had
> > issues LLVM >= 4.0.1 generating ELF files that could not be loaded
> > with libbpf (tools/lib/bpf/).
> >
> > During the troubleshooting phase, I wrote a test program and improved
> > the debugging output in libbpf. I turned this into a selftests
> > program, and it also serves as a code example for libbpf in itself.
> >
> > I discovered that there are at least three ELF load issues with
> > libbpf. I left them as TODO comments in (tools/testing/selftests/bpf)
> > test_libbpf.sh. I've only fixed the load issue with eh_frames, and
> > other types of relo-section that does not have exec flags. We can
> > work on the other issues later.
>
> Applied it to bpf tree, thanks Jesper!
Thank you for applying this the 'bpf' tree! -- appreciate it!
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
LinkedIn: http://www.linkedin.com/in/brouer
next prev parent reply other threads:[~2018-02-09 8:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-08 11:48 [bpf-next V3 PATCH 0/5] tools/libbpf improvements and selftests Jesper Dangaard Brouer
2018-02-08 11:48 ` [bpf-next V3 PATCH 1/5] bpf: Sync kernel ABI header with tooling header for bpf_common.h Jesper Dangaard Brouer
2018-02-08 14:17 ` Arnaldo Carvalho de Melo
2018-02-08 11:48 ` [bpf-next V3 PATCH 2/5] tools/libbpf: improve the pr_debug statements to contain section numbers Jesper Dangaard Brouer
2018-02-08 11:48 ` [bpf-next V3 PATCH 3/5] selftests/bpf: add test program for loading BPF ELF files Jesper Dangaard Brouer
2018-02-08 11:48 ` [bpf-next V3 PATCH 4/5] selftests/bpf: add selftest that use test_libbpf_open Jesper Dangaard Brouer
2018-02-08 11:48 ` [bpf-next V3 PATCH 5/5] tools/libbpf: handle issues with bpf ELF objects containing .eh_frames Jesper Dangaard Brouer
2018-02-09 1:32 ` [bpf-next V3 PATCH 0/5] tools/libbpf improvements and selftests Daniel Borkmann
2018-02-09 8:18 ` Jesper Dangaard Brouer [this message]
2018-02-09 11:50 ` Daniel Borkmann
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