Commit-ID: 8b6eb56a9570001634df1d2c7f38e7179a357362 Gitweb: http://git.kernel.org/tip/8b6eb56a9570001634df1d2c7f38e7179a357362 Author: Ingo Molnar <mi...@kernel.org> AuthorDate: Mon, 30 Sep 2013 13:51:28 +0200 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Wed, 9 Oct 2013 08:48:29 +0200
tools/perf/build: Add 'autodep' functionality, generate feature test dependencies automatically Use GCC's -MD feature to generate a dependency file for each feature test .c file, and include that .d file in the config/feature-checks/Makefile. This allows us to do two things: - speed up feature tests - detect removal or changes in build dependencies - including system libraries/headers Cc: Arnaldo Carvalho de Melo <a...@redhat.com> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Namhyung Kim <namhy...@kernel.org> Cc: David Ahern <dsah...@gmail.com> Cc: Jiri Olsa <jo...@redhat.com> Link: http://lkml.kernel.org/n/tip-jfma8pmpnnqzpxjbs3hpg...@git.kernel.org Signed-off-by: Ingo Molnar <mi...@kernel.org> --- tools/perf/config/feature-checks/Makefile | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile index b3f6372..4708cca 100644 --- a/tools/perf/config/feature-checks/Makefile +++ b/tools/perf/config/feature-checks/Makefile @@ -1,16 +1,20 @@ FILES=test-hello +CC := $(CC) -MD + all: $(FILES) BUILD = $(CC) -o $(OUTPUT)$@ $@.c ############################### -test-hello: test-hello.c +test-hello: $(BUILD) +-include *.d */*.d + ############################### clean: - rm -f $(FILES) + rm -f $(FILES) *.d -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
