From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755491Ab2EUHNT (ORCPT ); Mon, 21 May 2012 03:13:19 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33000 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752401Ab2EUHNR (ORCPT ); Mon, 21 May 2012 03:13:17 -0400 From: Jiri Olsa To: acme@redhat.com, a.p.zijlstra@chello.nl, mingo@elte.hu, paulus@samba.org, cjashfor@linux.vnet.ibm.com, fweisbec@gmail.com Cc: linux-kernel@vger.kernel.org, Jiri Olsa Subject: [PATCH 2/5] perf, tool: Add support for displaying event parser debug info Date: Mon, 21 May 2012 09:12:50 +0200 Message-Id: <1337584373-2741-3-git-send-email-jolsa@redhat.com> In-Reply-To: <1337584373-2741-1-git-send-email-jolsa@redhat.com> References: <1337584373-2741-1-git-send-email-jolsa@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adding PARSER_DEBUG Makefile variable to enable building event scanner/parser with debug enabled. This results in verbose output right out of the scanner/parser. It's usefull for debuging the event parser. Keeping this only for event parser so far. Signed-off-by: Jiri Olsa --- tools/perf/Makefile | 12 +++++++++--- tools/perf/util/parse-events.c | 6 ++++++ 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 26830c2..e1a8bb4 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -83,7 +83,13 @@ ifndef PERF_DEBUG CFLAGS_OPTIMIZE = -O6 endif -CFLAGS = -fno-omit-frame-pointer -ggdb3 -Wall -Wextra -std=gnu99 $(CFLAGS_WERROR) $(CFLAGS_OPTIMIZE) -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) +ifdef PARSER_DEBUG + PARSER_DEBUG_BISON := -t + PARSER_DEBUG_FLEX := -d + PARSER_DEBUG_CFLAGS := -DPARSER_DEBUG +endif + +CFLAGS = -fno-omit-frame-pointer -ggdb3 -Wall -Wextra -std=gnu99 $(CFLAGS_WERROR) $(CFLAGS_OPTIMIZE) -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) $(PARSER_DEBUG_CFLAGS) EXTLIBS = -lpthread -lrt -lelf -lm ALL_CFLAGS = $(CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE ALL_LDFLAGS = $(LDFLAGS) @@ -205,10 +211,10 @@ FLEX = flex BISON= bison $(OUTPUT)util/parse-events-flex.c: util/parse-events.l - $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c + $(QUIET_FLEX)$(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 -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 $(OUTPUT)util/pmu-flex.c: util/pmu.l $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/pmu-flex.h -t util/pmu.l > $(OUTPUT)util/pmu-flex.c diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index c7fc18a..6704978 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -23,6 +23,9 @@ struct event_symbol { const char *alias; }; +#ifdef PARSER_DEBUG +extern int parse_events_debug; +#endif int parse_events_parse(struct list_head *list, struct list_head *list_tmp, int *idx); @@ -768,6 +771,9 @@ int parse_events(struct perf_evlist *evlist, const char *str, int unset __used) buffer = parse_events__scan_string(str); +#ifdef PARSER_DEBUG + parse_events_debug = 1; +#endif ret = parse_events_parse(&list, &list_tmp, &idx); parse_events__flush_buffer(buffer); -- 1.7.7.6