linux-kernel - Re: [RFC PATCH] tools lib traceevent: Allow setting an alternative symbol resolver

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Message-ID: <20150723181715.GD3154@kernel.org>
Date:	Thu, 23 Jul 2015 15:17:15 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	David Ahern <dsahern@...il.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Borislav Petkov <bp@...e.de>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Stephane Eranian <eranian@...gle.com>,
	Ingo Molnar <mingo@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH] tools lib traceevent: Allow setting an alternative
 symbol resolver

Em Thu, Jul 23, 2015 at 02:11:33PM -0400, Steven Rostedt escreveu:
> On Thu, 23 Jul 2015 14:10:39 -0400 Steven Rostedt <rostedt@...dmis.org> wrote:
> > On Thu, 23 Jul 2015 14:25:54 -0300
> > Arnaldo Carvalho de Melo <acme@...nel.org> wrote:
> > > diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
> > > +static struct {
> > > +	pevent_function_resolver_t *function;
> > > +	void 			   *priv;
> > > +} function_resolver;
> > > +
> > > +/**
> > > + * pevent_set_function_resolver - set an alternative function resolver
> > > + * @resolver - function to be used
> > > + * @priv - resolver function private state.
> > > + *
> > > + * Some tools may have already a way to resolve kernel functions, allow them
> > > + * to keep using it instead of duplicating all the entries inside pevent->funclist.
> > > + */
> > > +void pevent_set_function_resolver(pevent_function_resolver_t *resolver, void *priv)
> > > +{
> > > +	function_resolver.function = resolver;
> > > +	function_resolver.priv	  = priv;
> > 
> > What about passing in pevent, and making the allocation here?
> 
> In fact, we could remove the global function_resolver, and allocate
> that here too.

Ok, I'll do it, something else?

- Arnaldo
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