Re: [PATCH 3/9] perf build: Test correct path of perf in build-test

[Jiri Olsa <jolsa@redhat.com>]

On Wed, Jan 13, 2016 at 12:17:16PM +0000, Wang Nan wrote:
> If an 'O' is passed to 'make build-test', many 'test -x' and 'test -f'
> will fail because perf resides in a different directory. Fix this by
> computing PERF_OUT according to 'O' and test correct output files.
> For make_kernelsrc and make_kernelsrc_tools, set KBUILD_OUTPUT_DIR
> instead because the path is different from others ($(O)/perf vs
>  $(O)/tools/perf).
> 
> Signed-off-by: Wang Nan <wangnan0@huawei.com>
> Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
> Cc: Jiri Olsa <jolsa@kernel.org>
> Cc: Namhyung Kim <namhyung@kernel.org>
> ---
>  tools/perf/tests/make | 23 +++++++++++++++--------
>  1 file changed, 15 insertions(+), 8 deletions(-)
> 
> diff --git a/tools/perf/tests/make b/tools/perf/tests/make
> index 14d7b8d..1e59ce8 100644
> --- a/tools/perf/tests/make
> +++ b/tools/perf/tests/make
> @@ -13,10 +13,12 @@ else
>  endif
>  else
>  PERF := .
> +PERF_OUT := $(PERF)
>  O_OPT :=

given that we use _O suffix everywhere in here, would PERF_O suit better?

thanks,
jirka