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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: Jiri 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: Arnaldo Carvalho de Melo <acme@redhat.com>
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1 changed files with 8 additions and 11 deletions
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@ -204,21 +204,20 @@ export PERL_PATH
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FLEX = $(CROSS_COMPILE)flex
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BISON= $(CROSS_COMPILE)bison
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event-parser:
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$(QUIET_BISON)$(BISON) -v util/parse-events.y -d -o $(OUTPUT)util/parse-events-bison.c
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$(OUTPUT)util/parse-events-flex.c: util/parse-events.l
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$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c
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$(OUTPUT)util/parse-events-flex.c: event-parser
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$(OUTPUT)util/parse-events-bison.c: event-parser
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$(OUTPUT)util/parse-events-bison.c: util/parse-events.y
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$(QUIET_BISON)$(BISON) -v util/parse-events.y -d -o $(OUTPUT)util/parse-events-bison.c
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pmu-parser:
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$(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c
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$(OUTPUT)util/pmu-flex.c: util/pmu.l
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$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/pmu-flex.h -t util/pmu.l > $(OUTPUT)util/pmu-flex.c
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$(OUTPUT)util/pmu-flex.c: pmu-parser
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$(OUTPUT)util/pmu-bison.c: pmu-parser
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$(OUTPUT)util/pmu-bison.c: util/pmu.y
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$(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c
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$(OUTPUT)util/parse-events.o: event-parser pmu-parser
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$(OUTPUT)util/parse-events.o: $(OUTPUT)util/parse-events-flex.c $(OUTPUT)util/parse-events-bison.c
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$(OUTPUT)util/pmu.o: $(OUTPUT)util/pmu-flex.c $(OUTPUT)util/pmu-bison.c
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LIB_FILE=$(OUTPUT)libperf.a
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@ -807,8 +806,6 @@ help:
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@echo ' html - make html documentation'
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@echo ' info - make GNU info documentation (access with info <foo>)'
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@echo ' pdf - make pdf documentation'
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@echo ' event-parser - make event parser code'
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@echo ' pmu-parser - make pmu format parser code'
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@echo ' TAGS - use etags to make tag information for source browsing'
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@echo ' tags - use ctags to make tag information for source browsing'
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@echo ' cscope - use cscope to make interactive browsing database'
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