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Date: Tue, 23 Feb 2016 13:14:42 -0300
From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>,
        Arnaldo Carvalho de Melo <acme@redhat.com>,
        Brendan Gregg <brendan.d.gregg@gmail.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
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        "David S. Miller" <davem@davemloft.net>, He Kuang <hekuang@huawei.com>,
        =?iso-8859-1?Q?J=E9r=E9mie?= Galarneau 
	<jeremie.galarneau@efficios.com>,
        Jiri Olsa <jolsa@kernel.org>, Kirill Smelkov <kirr@nexedi.com>,
        Li Zefan <lizefan@huawei.com>,
        Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
        Namhyung Kim <namhyung@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>, pi3orama@163.com,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 11/48] perf data: Support converting data from
 bpf_perf_event_output()
Message-ID: <20160223161442.GF15284@kernel.org>
References: <1456132275-98875-1-git-send-email-wangnan0@huawei.com>
 <1456132275-98875-12-git-send-email-wangnan0@huawei.com>
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Em Mon, Feb 22, 2016 at 09:10:38AM +0000, Wang Nan escreveu:
> bpf_perf_event_output() outputs data through sample->raw_data. This
> patch adds support to convert those data into CTF. A python script
> then can be used to process output data from BPF programs.
> 
> Test result:

Trying to test this I get:

[acme@jouet linux]$ make O=/tmp/build/perf LIBBABELTRACE=1 -C tools/perf install-bin 2>&1 | grep babel
config/Makefile:663: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev
[acme@jouet linux]$ rpm -q libbabeltrace-devel
libbabeltrace-devel-1.2.4-2.fc23.x86_64
[acme@jouet linux]$ 

Guess we better improve this message... Anyway, trying to find libbabeltrace's
git tree to see if with its master branch this works...

- Arnaldo