[lttng-dev] Need help in converting trace data into CTF

[Jonathan Rajotte-Julien]

Hi,

Note that if you plan on using Babeltrace 2 plugin system, the metadata file
will be generated based on the trace representation given by the source plugin.

See [1] for an example of this.

[1] http://git.efficios.com/?p=babeltrace.git;a=blob;f=src/plugins/text/dmesg/dmesg.c;h=7ed01cdc2f4dcdf64f88541884d26b8787df4760#l122

Cheers

On Mon, Jun 17, 2019 at 12:51:54PM -0400, Jonathan Rajotte-Julien wrote:
> Hi,
> 
> > I am trying to write a metadata file. I am following https://diamon.org/ctf/.
> > I found one metadata file on GitHub repository
> > https://github.com/efficios/epiphany-examples/tree/barectf-tracing/apps/barectf-tracing/ctf
> > 
> >  Which file format is used for the metadata files?
> 
> Babeltrace understand text based metadata file as long as it conforms to the TSDL
> grammar.
> 
> See:
>     https://diamon.org/ctf/#spec7
>     https://diamon.org/ctf/#spec7.4
>     https://diamon.org/ctf/#specC
> 
> For an example of metadata generator, you can look at Barectf[1] or
> lttng-tools[2]
> 
> [1] https://github.com/efficios/barectf/blob/a3ebf5855c025a86ebc2d62cbda1338461e84c5a/barectf/tsdl182gen.py
> [2] https://github.com/lttng/lttng-tools/blob/c8e0c5f5d94fb574f4e5d7518f0f8e6f984dfe3d/src/bin/lttng-sessiond/ust-metadata.c
> 
> -- 
> Jonathan Rajotte-Julien
> EfficiOS

-- 
Jonathan Rajotte-Julien
EfficiOS