linux-kernel - Re: [tip:perfcounters/core] perf report: Deal with maps

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Date:	Fri, 05 Jun 2009 16:06:24 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	mingo@...hat.com, hpa@...or.com, paulus@...ba.org,
	linux-kernel@...r.kernel.org, efault@....de, tglx@...utronix.de,
	mingo@...e.hu
Subject: Re: [tip:perfcounters/core] perf report: Deal with maps

On Fri, 2009-06-05 at 10:57 -0300, Arnaldo Carvalho de Melo wrote:
> Em Fri, Jun 05, 2009 at 01:21:54PM +0000, tip-bot for Peter Zijlstra escreveu:
> > Commit-ID:  fc54db5105d01ad691a7d747064c7890e17f936c
> > Gitweb:     http://git.kernel.org/tip/fc54db5105d01ad691a7d747064c7890e17f936c
> > Author:     Peter Zijlstra <a.p.zijlstra@...llo.nl>
> > AuthorDate: Fri, 5 Jun 2009 14:04:59 +0200
> > Committer:  Ingo Molnar <mingo@...e.hu>
> > CommitDate: Fri, 5 Jun 2009 14:46:41 +0200
> > 
> > perf report: Deal with maps
> > 
> > In order to deal with [vdso] maps generalize the ip->symbol path
> > a bit and allow to override some bits with custom functions.
> > 
> > Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> > Cc: Mike Galbraith <efault@....de>
> > Cc: Paul Mackerras <paulus@...ba.org>
> > Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
> > LKML-Reference: <new-submission>
> > Signed-off-by: Ingo Molnar <mingo@...e.hu>
> > 
> > 
> > ---
> >  Documentation/perf_counter/builtin-report.c |   37 +++++++++++++++++++++++++-
> >  Documentation/perf_counter/util/symbol.c    |    1 +
> >  Documentation/perf_counter/util/symbol.h    |    1 +
> >  3 files changed, 37 insertions(+), 2 deletions(-)
> > 
> > diff --git a/Documentation/perf_counter/builtin-report.c b/Documentation/perf_counter/builtin-report.c
> > index eb5424f..9783d1e 100644
> > --- a/Documentation/perf_counter/builtin-report.c
> > +++ b/Documentation/perf_counter/builtin-report.c
> > @@ -79,6 +79,7 @@ typedef union event_union {
> >  
> >  static LIST_HEAD(dsos);
> >  static struct dso *kernel_dso;
> > +static struct dso *vdso;
> >  
> >  static void dsos__add(struct dso *dso)
> >  {
> > @@ -136,6 +137,11 @@ static void dsos__fprintf(FILE *fp)
> >  		dso__fprintf(pos, fp);
> >  }
> >  
> > +static struct symbol *vdso__find_symbol(struct dso *dso, uint64_t ip)
> > +{
> > +	return dso__find_symbol(kernel_dso, ip);
> > +}
> 
> Cut'n'paste error? s/kernel_dso/vdso/g

Ah, no, intentional cheating ;-)

the kernel dso includes the vdso symbols


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