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Date: Thu, 14 Jan 2016 13:13:59 +0000 From: Wang Nan <wangnan0@...wei.com> To: <acme@...nel.org>, <jolsa@...hat.com> CC: <linux-kernel@...r.kernel.org>, <pi3orama@....com>, <lizefan@...wei.com>, Jiri Olsa <jolsa@...nel.org>, Wang Nan <wangnan0@...wei.com> Subject: [PATCH v2 5/9] perf build: Add feature-dump target From: Jiri Olsa <jolsa@...nel.org> To provide FEATURE-DUMP into $(FEATURE_DUMP_COPY) if defined, with no further action. Get feature dump of the current build: $ make feature-dump BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ on ] FEATURE-DUMP file available in FEATURE-DUMP Get feature dump static build into /tmp/fd file: $ make feature-dump FEATURE_DUMP_COPY=/tmp/fd LDFLAGS=-static BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ OFF ] SNIP FEATURE-DUMP file copied into /tmp/fd Suggested-by: Wang Nan <wangnan0@...wei.com> Link: http://lkml.kernel.org/n/tip-xzqhfxw3euqmls3cve0ruuol@git.kernel.org Signed-off-by: Jiri Olsa <jolsa@...nel.org> Signed-off-by: Wang Nan <wangnan0@...wei.com> --- tools/perf/Makefile.perf | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 0a22407..f758a72 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -611,6 +611,17 @@ clean: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(python-clean) # +# To provide FEATURE-DUMP into $(FEATURE_DUMP_COPY) +# file if defined, with no further action. +feature-dump: +ifdef FEATURE_DUMP_COPY + @cp $(OUTPUT)FEATURE-DUMP $(FEATURE_DUMP_COPY) + @echo "FEATURE-DUMP file copied into $(FEATURE_DUMP_COPY)" +else + @echo "FEATURE-DUMP file available in $(OUTPUT)FEATURE-DUMP" +endif + +# # Trick: if ../../.git does not exist - we are building out of tree for example, # then force version regeneration: # -- 1.8.3.4
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