linux-kernel - Re: [PATCH] perf tools: Fix bison warnings for pure parser

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Date:   Tue, 2 Jul 2019 13:01:37 -0300
From:   Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Andi Kleen <andi@...stfloor.org>, jolsa@...nel.org,
        linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH] perf tools: Fix bison warnings for pure parser

Em Fri, Jun 28, 2019 at 10:05:07AM +0200, Jiri Olsa escreveu:
> On Thu, Jun 27, 2019 at 03:20:21PM -0700, Andi Kleen wrote:
> > From: Andi Kleen <ak@...ux.intel.com>
> > 
> > bison 3.4.1 complains during a perf build:
> > 
> > util/parse-events.y:1.1-12: warning: deprecated directive, use ‘%define api.pure’ [-Wdeprecated]
> >     1 | %pure-parser
> >       | ^~~~~~~~~~~~
> >   CC       /home/andi/lsrc/obj-perf/ui/browsers/map.o
> > util/parse-events.y: warning: fix-its can be applied.  Rerun with option '--update'. [-Wother]
> > 
> > util/expr.y:13.1-12: warning: deprecated directive, use ‘%define api.pure’ [-Wdeprecated]
> >    13 | %pure-parser
> >       | ^~~~~~~~~~~~
> > util/expr.y: warning: fix-its can be applied.  Rerun with option '--update'. [-Wother]
> > 
> > Change the declarations to %define api.pure
> > 
> > Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> 
> looks good, let's hope it'll pass Arnaldo's build test

starting the tests now...
 
> jirka
> 
> > ---
> >  tools/perf/util/expr.y         | 2 +-
> >  tools/perf/util/parse-events.y | 2 +-
> >  2 files changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/tools/perf/util/expr.y b/tools/perf/util/expr.y
> > index 432b8560cf51..803c0929c205 100644
> > --- a/tools/perf/util/expr.y
> > +++ b/tools/perf/util/expr.y
> > @@ -10,7 +10,7 @@
> >  #define MAXIDLEN 256
> >  %}
> >  
> > -%pure-parser
> > +%define api.pure
> >  %parse-param { double *final_val }
> >  %parse-param { struct parse_ctx *ctx }
> >  %parse-param { const char **pp }
> > diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
> > index 6ad8d4914969..4eb10c27c30f 100644
> > --- a/tools/perf/util/parse-events.y
> > +++ b/tools/perf/util/parse-events.y
> > @@ -1,4 +1,4 @@
> > -%pure-parser
> > +%define api.pure
> >  %parse-param {void *_parse_state}
> >  %parse-param {void *scanner}
> >  %lex-param {void* scanner}
> > -- 
> > 2.21.0
> > 

-- 

- Arnaldo