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Commit 2a5204fe authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

perf tools: Fix parsers' rules to dependencies 



Currently the parsers objects (bison/flex related) are each time perf
is built. No matter the generated files are already in place, the
parser generation is executed every time.

Changing the rules to have proper flex/bison objects generation
dependencies.

The parsers code is not rebuilt until the flex/bison source files
are touched. Also when flex/bison source is changed, only dependent
objects are rebuilt.

Signed-off-by: default avatarJiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1334140791-3024-1-git-send-email-jolsa@redhat.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent f7553972

tools/perf/Makefile

+8 −11
Original line number Diff line number Diff line
@@ -237,21 +237,20 @@ export PERL_PATH 
FLEX = $(CROSS_COMPILE)flex

BISON= $(CROSS_COMPILE)bison



event-parser:

	$(QUIET_BISON)$(BISON) -v util/parse-events.y -d -o $(OUTPUT)util/parse-events-bison.c

$(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



$(OUTPUT)util/parse-events-flex.c: event-parser

$(OUTPUT)util/parse-events-bison.c: event-parser

$(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



pmu-parser:

	$(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-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



$(OUTPUT)util/pmu-flex.c: pmu-parser

$(OUTPUT)util/pmu-bison.c: pmu-parser

$(OUTPUT)util/pmu-bison.c: util/pmu.y

	$(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c



$(OUTPUT)util/parse-events.o: event-parser pmu-parser

$(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



LIB_FILE=$(OUTPUT)libperf.a
@@ -852,8 +851,6 @@ help: 
	@echo '  html		- make html documentation'

	@echo '  info		- make GNU info documentation (access with info <foo>)'

	@echo '  pdf		- make pdf documentation'

	@echo '  event-parser	- make event parser code'

	@echo '  pmu-parser	- make pmu format parser code'

	@echo '  TAGS		- use etags to make tag information for source browsing'

	@echo '  tags		- use ctags to make tag information for source browsing'

	@echo '  cscope	- use cscope to make interactive browsing database'