linux-kernel - Re: [PATCH] perf tools: Fix build with older versions of bison.

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Message-ID: <20130124194718.GB18404@krava.redhat.com>
Date:	Thu, 24 Jan 2013 20:47:18 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Vinson Lee <vlee@...tter.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Namhyung Kim <namhyung@...il.com>,
	Pekka Enberg <penberg@...nel.org>,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] perf tools: Fix build with older versions of bison.

On Wed, Jan 23, 2013 at 06:58:31PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Tue, Nov 13, 2012 at 01:50:07PM -0800, Vinson Lee escreveu:
> > This patch fixes this build error with older versions of bison.
> 
> Sorry for leaving this patch unapplied, fell thru the cracks.
> 
> But can you please explain what the patch does?

right.. the patch looks ok, but more info in change log would be nice

jirka


> 
> - Arnaldo
>  
> >     CC util/sysfs.o
> >     BISON util/pmu-bison.c
> > util/pmu.y:2.14-24: syntax error, unexpected string, expecting =
> > make: *** [util/pmu-bison.c] Error 1
> > 
> > Signed-off-by: Vinson Lee <vlee@...tter.com>
> > Cc: stable@...r.kernel.org # 3.4+
> > ---
> >  tools/perf/Makefile            |    4 ++--
> >  tools/perf/util/parse-events.y |    1 -
> >  tools/perf/util/pmu.y          |    1 -
> >  3 files changed, 2 insertions(+), 4 deletions(-)
> > 
> > diff --git a/tools/perf/Makefile b/tools/perf/Makefile
> > index 00deed4..c2fb5bc 100644
> > --- a/tools/perf/Makefile
> > +++ b/tools/perf/Makefile
> > @@ -241,13 +241,13 @@ $(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(OUTPUT)util/parse-event
> >  	$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h $(PARSER_DEBUG_FLEX) -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c
> >  
> >  $(OUTPUT)util/parse-events-bison.c: util/parse-events.y
> > -	$(QUIET_BISON)$(BISON) -v util/parse-events.y -d $(PARSER_DEBUG_BISON) -o $(OUTPUT)util/parse-events-bison.c
> > +	$(QUIET_BISON)$(BISON) -v util/parse-events.y -d $(PARSER_DEBUG_BISON) -o $(OUTPUT)util/parse-events-bison.c -p parse_events_
> >  
> >  $(OUTPUT)util/pmu-flex.c: util/pmu.l $(OUTPUT)util/pmu-bison.c
> >  	$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/pmu-flex.h -t util/pmu.l > $(OUTPUT)util/pmu-flex.c
> >  
> >  $(OUTPUT)util/pmu-bison.c: util/pmu.y
> > -	$(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c
> > +	$(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c -p perf_pmu_
> >  
> >  $(OUTPUT)util/parse-events.o: $(OUTPUT)util/parse-events-flex.c $(OUTPUT)util/parse-events-bison.c
> >  $(OUTPUT)util/pmu.o: $(OUTPUT)util/pmu-flex.c $(OUTPUT)util/pmu-bison.c
> > diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
> > index cd88209..85cdaed 100644
> > --- a/tools/perf/util/parse-events.y
> > +++ b/tools/perf/util/parse-events.y
> > @@ -1,5 +1,4 @@
> >  %pure-parser
> > -%name-prefix "parse_events_"
> >  %parse-param {void *_data}
> >  %parse-param {void *scanner}
> >  %lex-param {void* scanner}
> > diff --git a/tools/perf/util/pmu.y b/tools/perf/util/pmu.y
> > index ec89804..bfd7e85 100644
> > --- a/tools/perf/util/pmu.y
> > +++ b/tools/perf/util/pmu.y
> > @@ -1,5 +1,4 @@
> >  
> > -%name-prefix "perf_pmu_"
> >  %parse-param {struct list_head *format}
> >  %parse-param {char *name}
> >  
> > -- 
> > 1.5.4.3
> > 
> > --
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