Re: [RFC] trace-cmd: add the ability to install libtracecmd

[Josef Bacik]

On 07/10/2014 06:53 PM, Steven Rostedt wrote:
> On Thu, 10 Jul 2014 17:22:45 -0400
> Josef Bacik <jbacik@xxxxxx> wrote:
>
> > Hello,
> >
> > I'm trying to build some custom tracing tools on top of trace-cmd but they
> > aren't really usefull outside of Facebook so I don't want to shove them into the
> > actual trace-cmd project.  Instead I'd like to be able to just build libtracecmd
> > and install that as well as the necessary header files and just link my tools
> > against that.  I'm shit at userspace stuff like this, so I've just hacked
> > something together that works for me.  I'm mostly hoping somebody will look at
> > the Makefile horribleness that I came up with and tell me how to do it right (or
> > better yet do it for me!)  The second patch just cleans up some stuff to make
> > the shared library more library esque.  Any feedback would be great.  Thanks,
>
> I'm shit at userspace too ;-)  I just like simple makefiles and other
> non "autocrap" stuff.
>
> Anyway, I did plan on getting a libtracecmd out someday (at a bottom of
> a very long todo list), so I'm all game for this. I was hoping to get
> libtraceevent out first. That's now homed in the kernel tools
> directory and I've been porting stuff to and from trace-cmd for that as
> well. But there's still a bit of work on that front.
>
> I'll have to take a look at your patches and see how they are after I
> get some other things out of the way first.

Ok I didn't notice the libtracecmd, so I'll send the second patch 
against that since it's just against the event parse stuff.  In reality 
all I need is the event parsing stuff, I just use the libtracecmd to 
open the trace.dat file.  I'll see if I can figure out how to just parse 
the events live without having to record with trace-cmd first and that 
will probably be good enough for me for now, then maybe when I care 
about post-processing trace.dat you will have gotten to the bottom of 
your TODO list.  Thanks,

Josef
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