linux-kernel - Re: [PATCH 3/3] bpftool: Allow to link libbpf dynamically

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Message-ID: <d78a306f-a736-63d1-4d14-695ba33d3d9c@netronome.com>
Date:   Wed, 27 Nov 2019 15:52:06 +0000
From:   Quentin Monnet <quentin.monnet@...ronome.com>
To:     Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
Cc:     Jiri Olsa <jolsa@...hat.com>, Jiri Olsa <jolsa@...nel.org>,
        lkml <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org,
        bpf@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Michael Petlan <mpetlan@...hat.com>,
        Toke Høiland-Jørgensen <toke@...hat.com>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        Andrii Nakryiko <andriin@...com>
Subject: Re: [PATCH 3/3] bpftool: Allow to link libbpf dynamically

2019-11-27 12:48 UTC-0300 ~ Arnaldo Carvalho de Melo
<arnaldo.melo@...il.com>
> Em Wed, Nov 27, 2019 at 02:31:31PM +0000, Quentin Monnet escreveu:
>> 2019-11-27 11:24 UTC-0300 ~ Arnaldo Carvalho de Melo
>> <arnaldo.melo@...il.com>
>>> Em Wed, Nov 27, 2019 at 03:15:20PM +0100, Jiri Olsa escreveu:
>>>> On Wed, Nov 27, 2019 at 01:38:55PM +0000, Quentin Monnet wrote:
>>>>> 2019-11-27 10:48 UTC+0100 ~ Jiri Olsa <jolsa@...nel.org>
>>>>> On the plus side, all build attempts from
>>>>> tools/testing/selftests/bpf/test_bpftool_build.sh pass successfully on
>>>>> my setup with dynamic linking from your branch.
>>>>
>>>> cool, had no idea there was such test ;-)
>>>
>>> Should be the the equivalent to 'make -C tools/perf build-test' :-)
>>>
>>> Perhaps we should make tools/testing/selftests/perf/ link to that?
>>
>> It is already run as part of the bpf selftests, so probably no need.
> 
> You mean 'make -C tools/perf build-test' is run from the bpf selftests?

Ah, no, sorry for the confusion. I meant that test_bpftool_build.sh is
run from the bpf selftests.

I am not familiar with perf build-test, but maybe that's something worth
adding to perf selftests indeed.

Quentin