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Date:   Thu, 30 May 2019 18:54:39 +0800
From:   Leo Yan <leo.yan@linaro.org>
To:     Jiri Olsa <jolsa@kernel.org>
Cc:     Arnaldo Carvalho de Melo <acme@kernel.org>,
        Jesper Dangaard Brouer <brouer@redhat.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        lkml <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@kernel.org>,
        Namhyung Kim <namhyung@kernel.org>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Stanislav Fomichev <sdf@fomichev.me>,
        Song Liu <songliubraving@fb.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCHv3 00/12] perf tools: Display eBPF code in intel_pt trace
Message-ID: <20190530105439.GA5927@leoy-ThinkPad-X240s>
References: <20190508132010.14512-1-jolsa@kernel.org>
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Hi Jiri,

On Wed, May 08, 2019 at 03:19:58PM +0200, Jiri Olsa wrote:
> hi,
> this patchset adds dso support to read and display
> bpf code in intel_pt trace output. I had to change
> some of the kernel maps processing code, so hopefully
> I did not break too many things ;-)
> 
> It's now possible to see bpf code flow via:
> 
>   # perf-with-kcore record pt -e intel_pt//ku -- sleep 1
>   # perf-with-kcore script pt --insn-trace --xed

This is very interesting work for me!

I want to verify this feature with Arm CoreSight trace, I have one
question so that I have more direction for the tesing:

What's the bpf program you are suing for the testing?  e.g. some
testing program under the kernel's folder $kernel/samples/bpf?
Or you uses perf command to launch bpf program?

[...]

Thanks
Leo Yan