linux-kernel - Re: [PATCH 07/30] perf build: Add libperf objects building

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Message-ID: <20150108061509.GC7268@sejong>
Date:	Thu, 8 Jan 2015 15:15:09 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Jiri Olsa <jolsa@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Alexis Berlemont <alexis.berlemont@...il.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 07/30] perf build: Add libperf objects building

On Fri, Jan 02, 2015 at 04:35:49PM +0100, Jiri Olsa wrote:
> Move the util objects building under build framework.
> 
> Add new libperf build object so it's separated from
> the rest of the perf code and could be librarized.
>


[SNIP]
> +$(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(OUTPUT)util/parse-events-bison.c
> +	@$(call echo-cmd,bison)$(FLEX) -o $@ --header-file=$(OUTPUT)util/parse-events-flex.h $(PARSER_DEBUG_FLEX) util/parse-events.l
                         ^^^^^
s/bison/flex/ ?


> +
> +$(OUTPUT)util/parse-events-bison.c: util/parse-events.y
> +	@$(call echo-cmd,bison)$(BISON) -v util/parse-events.y -d $(PARSER_DEBUG_BISON) -o $(OUTPUT)util/parse-events-bison.c -p parse_events_

I guess we can simply use "-o $@" here.


> +
> +$(OUTPUT)util/pmu-flex.c: util/pmu.l $(OUTPUT)util/pmu-bison.c
> +	@$(call echo-cmd,flex)$(FLEX) -o $@ --header-file=$(OUTPUT)util/pmu-flex.h util/pmu.l
> +
> +$(OUTPUT)util/pmu-bison.c: util/pmu.y
> +	@$(call echo-cmd,bison)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c -p perf_pmu_

Ditto.

Thanks,
Namhyung


> +
> +CFLAGS_parse-events-flex.o  += -w
> +CFLAGS_pmu-flex.o           += -w
> +CFLAGS_parse-events-bison.o += -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -w
> +CFLAGS_pmu-bison.o          += -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -w
> +
> +$(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 $(OUTPUT)util/pmu-bison.c
> +
> +CFLAGS_find_next_bit.o += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
> +CFLAGS_rbtree.o        += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
> +CFLAGS_parse-events.o  += -Wno-redundant-decls
> +
> +$(OUTPUT)util/kallsyms.o: ../lib/symbol/kallsyms.c FORCE
> +	$(call if_changed_dep,cc_o_c)
> +
> +$(OUTPUT)util/find_next_bit.o: ../lib/util/find_next_bit.c FORCE
> +	$(call if_changed_dep,cc_o_c)
> +
> +$(OUTPUT)util/rbtree.o: ../../lib/rbtree.c FORCE
> +	$(call if_changed_dep,cc_o_c)
> -- 
> 1.9.3
> 
> --
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