Mathieu Poirier [off-list ref] writes:

On 30 September 2015 at 02:52, Alexander Shishkin
[off-list ref] wrote:

quoted

Mathieu Poirier [off-list ref] writes:

quoted

This patchset aims to integrate configuration and control of
the Coresight tracers with the perf sub-system.

The goal is to use PMUs to represent tracers and the auxiliary
buffer enhancement to collect processor traces.  As such a lot
of work is done to move the current Coresight sysFS oriented
configuration and control commands to perf's AUX API.

For the time being the work concentrates on ETMv3 and ETB1.0
sink buffers.  Work on ETMv4 and other type of sink buffers
will follow once a foundation has been established.

Enhancement to the perf command line tool can be found here [1].
It is based on v4.2 but a rebase to v4.3-rcX will be available
shortly.

Best regards,
Mathieu

[1]. https://git.linaro.org/people/mathieu.poirier/coresight.git/shortlog/refs/heads/perf-v4.2

I had a peek there -- didn't see an actual decoder for the ETM/PTM
binary stream or did I miss it somehow?

A stream decoder is not included in this patch set but a couple of
people are currently working on it.

Ok, thanks. Can you provide instructions in the next version on how one
can use this code to get a trace and decode it?

Regards,
--
Alex