linux-kernel - Re: [PATCH v2 01/10] perf tools: Integrating the CoreSight decoding library

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Message-ID: <20180116180438.GB10320@xps15>
Date:   Tue, 16 Jan 2018 11:04:38 -0700
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     acme@...nel.org, peterz@...radead.org, mingo@...hat.com,
        alexander.shishkin@...ux.intel.com, namhyung@...nel.org,
        adrian.hunter@...el.com, mike.leach@....com,
        suzuki.poulosi@....com, kim.phillips@....com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 01/10] perf tools: Integrating the CoreSight decoding
 library

On Tue, Jan 16, 2018 at 01:15:00PM +0100, Jiri Olsa wrote:
> On Mon, Jan 15, 2018 at 11:13:05AM -0700, Mathieu Poirier wrote:
> > The Open CoreSight Decoding Library (openCSD) is a free and open
> > library to decode traces collected by the CoreSight hardware
> > infrastructure.
> > 
> > This patch adds the required mechanic to recognise the presence
> > of the openCSD library on a system and set up miscellaneous flags
> > to be used in the compilation of the trace decoding feature.
> > 
> > Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
> > ---
> >  tools/build/Makefile.feature          |  6 ++++--
> >  tools/build/feature/Makefile          |  7 ++++++-
> >  tools/build/feature/test-all.c        |  5 +++++
> >  tools/build/feature/test-libopencsd.c |  8 ++++++++
> >  tools/perf/Makefile.config            | 25 +++++++++++++++++++++++++
> >  tools/perf/Makefile.perf              |  2 ++
> >  6 files changed, 50 insertions(+), 3 deletions(-)
> >  create mode 100644 tools/build/feature/test-libopencsd.c
> > 
> > diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
> > index e52fcefee379..dc3d97b248ab 100644
> > --- a/tools/build/Makefile.feature
> > +++ b/tools/build/Makefile.feature
> > @@ -66,7 +66,8 @@ FEATURE_TESTS_BASIC :=                  \
> >          bpf                             \
> >          sched_getcpu			\
> >          sdt				\
> > -        setns
> > +        setns				\
> > +	libopencsd
> >  
> >  # FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list
> >  # of all feature tests
> > @@ -108,7 +109,8 @@ FEATURE_DISPLAY ?=              \
> >           zlib                   \
> >           lzma                   \
> >           get_cpuid              \
> > -         bpf
> > +         bpf			\
> > +	 libopencsd
> 
> we put in this list only generic libraries, this one seems arch
> specific please put it into FEATURE_TESTS_EXTRA list

Very well - thanks for taking the time to review my work.
Mathieu

> 
> the state is displayed by running make 'VF=1', with this patch:
>   https://marc.info/?l=linux-kernel&m=151549001914932&w=2
> 
> Arnaldo, could you please check on that one ^^^?
> 
> thanks,
> jirka