linux-kernel - Re: [PATCH 17/22] perf tools: Add build and install plugins targets

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Message-ID: <20131125145144.GG3161@krava.brq.redhat.com>
Date:	Mon, 25 Nov 2013 15:51:44 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCH 17/22] perf tools: Add build and install plugins targets

On Sat, Nov 23, 2013 at 12:27:48AM +0900, Namhyung Kim wrote:
> 2013-11-21 (목), 12:01 +0100, Jiri Olsa:
> > Adding 'plugins' target along with the libtraceevent.a,
> > so plugins are built together with traceevent library.
> > 
> > Adding 'install-traceevent-plugins' Makefile install target,
> > instructing perf to install plugins into:
> >   $(HOME)/libexec/perf-core/traceevent/plugins
> >     - if installed localy under $HOME
> >   $(DESTDIR)/$(prefix)/$(perfexecdir)/traceevent/plugins
> >     - if installed globally
> 
> [SNIP]
> > --- a/tools/perf/config/Makefile
> > +++ b/tools/perf/config/Makefile
> > @@ -578,6 +578,7 @@ else
> >  lib = lib
> >  endif
> >  libdir = $(prefix)/$(lib)
> > +plugindir=$(perfexecdir)/traceevent/plugins
> 
> Hmm.. it puts traceevent plugins under the perf directory.  But I don't
> think it's a good idea since libtraceevent can be used independently.
> 
> What about something like this?
> 
>   plugindir = $(perfexecdir)/../traceevent/plugins

this is where trace-cmd stores them:

  $(HOME)/.trace-cmd/plugins
  $(prefix)/$(libdir)/trace-cmd/plugins

but I guess we want global place to install plugins,
the traceevent by default uses:

  $(HOME)/.traceevent/plugins
  $(prefix)/lib/traceevent/plugins

How about that?

thanks,
jirka
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