GSoC Project | Basic Support for Trace Compass

[Sebastian Huber]

On 28/05/2019 10:14, Ravindra Kumar Meena wrote:
> On Tue, May 28, 2019 at 12:51 PM Sebastian Huber 
> <sebastian.huber at embedded-brains.de 
> <mailto:sebastian.huber at embedded-brains.de>> wrote:
>
>
>     In case the application is an RTEMS application running inside Qemu,
>     then of course babletrace will have problems to understand the record
>     item steam since it is not in CTF format. We have the following
>     situation:
>
>     [ RTEMS application with event recording running on Qemu ]
>          <- TCP stream of record items ->
>     [ babeltrace ]
>
>     What we probably need is something like this:
>
>     [ RTEMS application with event recording running on Qemu ]
>          <- TCP stream of record items ->
>     [ custom converter program ]
>         <- TCP stream of CTF data ->
>     [ babeltrace ] or [ Trace Compass ]
>
>
> Okay. Thanks for the clarification. The small example that I showed 
> you where CTF data was printed in text format using babeltrace. It 
> requires LTTng-UST. We can't use it because you had already mentioned 
> that there is a license problem with it.
>
> With LTTng-UST I was able to define tracepoint provider package and 
> tracepoints in the program. You can follow this link in case if you 
> wanna have a look at it again.
> https://lttng.org/docs/v2.10/#doc-tracing-your-own-user-application
>
> Without the help of LTTng-UST how we will be able to define 
> tracepoints in the program?

Defining tracepoints in RTEMS applications is currently outside the 
scope of this project. You should really focus on the things mentioned 
in ticket:

https://devel.rtems.org/ticket/3696

The primary goal is to convert the record item stream into something which Trace Compass understands. As a first step, you can simplify this to: convert the record item stream into a CTF stream which babeltrace understands.

-- 
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone   : +49 89 189 47 41-16
Fax     : +49 89 189 47 41-09
E-Mail  : sebastian.huber at embedded-brains.de
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