linux-kernel - Re: [PATCH v3 0/9] perf build: Make build-test faster

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Date:	Fri, 15 Jan 2016 11:20:05 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Wang Nan <wangnan0@...wei.com>
Cc:	acme@...nel.org, linux-kernel@...r.kernel.org, pi3orama@....com,
	lizefan@...wei.com
Subject: Re: [PATCH v3 0/9] perf build: Make build-test faster

On Fri, Jan 15, 2016 at 04:00:12AM +0000, Wang Nan wrote:
> Utilise Jiri's feature-dump make target to avoid make build-test check
> features too many times.
> 
> v2 -> v3: add $(O_OPT) to 'make clean' to ensure the correctness of
>           config-clean.
> 
> Jiri Olsa (2):
>   perf build: Add feature-dump target
>   perf build: Introduce FEATURES_DUMP make variable
> 
> Wang Nan (7):
>   perf build: Set parallel making options build-test
>   perf build: Pass O option to Makefile.perf in build-test
>   perf build: Test correct path of perf in build-test
>   perf build: Pass O option to kernel makefile in build-test
>   tools build: Allow subprojects select all feature checkers
>   perf build: Select all feature checkers for feature-dump
>   perf build: Use feature dump file for build-test
> 
>  tools/build/Makefile.feature | 21 ++++++++++-
>  tools/perf/Makefile.perf     | 34 +++++++++++++++++-
>  tools/perf/config/Makefile   |  4 +++
>  tools/perf/tests/make        | 86 ++++++++++++++++++++++++++++++++++++--------
>  4 files changed, 128 insertions(+), 17 deletions(-)

got error on:

[jolsa@...va perf]$ make -f tests/make 
Testing Makefile
readlink: missing operand
Try 'readlink --help' for more information.
- /BUILD_TEST_FEATURE_DUMP: cd . && make FEATURE_DUMP_COPY=/BUILD_TEST_FEATURE_DUMP  feature-dump
cd . && make FEATURE_DUMP_COPY=/BUILD_TEST_FEATURE_DUMP feature-dump
tests/make:329: recipe for target '/BUILD_TEST_FEATURE_DUMP' failed
make[1]: *** [/BUILD_TEST_FEATURE_DUMP] Error 2
tests/make:7: recipe for target 'all' failed
make: *** [all] Error 2