Re: [PATCH v7 1/4] spinlock: A new lockref structure for lockless update of refcount

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On Fri, Aug 30, 2013 at 12:44 PM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
> On Fri, Aug 30, 2013 at 12:36 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>> On Fri, Aug 30, 2013 at 12:29:34PM +0200, Sedat Dilek wrote:
>>> [ Sorry for being off-topic ]
>>>
>>> Hey Ingo,
>>>
>>> can you help, please?
>>>
>>> I installed so far all missing -dev packages...
>>>
>>> $ sudo apt-get install libelf-dev libdw-dev libunwind7-dev libslang2-dev
>>
>> It seems to me the easier way is:
>>
>>  $ apt-get build-dep linux-tools
>>
>
> NO, se B-Ds for Ubuntu-kernel v3.2:
>
> Build-Depends: dpkg (>= 1.13.19), debhelper (>= 5), gawk
>
> http://archive.ubuntu.com/ubuntu/pool/main/l/linux-meta/linux-meta_3.2.0.52.62.dsc
>
>>> ...and then want a perf-only build...
>>>
>>> [ See tools/Makefile ]
>>>
>>> $ LANG=C LC_ALL=C make -C tools/ perf_install 2>&1 | tee ../perf_install-log.txt
>>
>> The way I always build that stuff is simply:
>>
>> $ cd tools/perf
>> $ make -j
>> $ cp perf `which perf`
>> $ cd -
>>
>
> Please, see advices in 'tools/Makefile':
>
>         @echo 'You can do:'
>         @echo ' $$ make -C tools/ <tool>_install'
>         @echo ''
>         @echo '  from the kernel command line to build and install one of'
>         @echo '  the tools above'
>         @echo ''
>         @echo '  $$ make tools/install'
>         @echo ''
>         @echo '  installs all tools.'
>
>
>> No idea about liblk though, never had that issue but maybe something
>> like:
>>
>> $ cd tools/lib/lk/
>> $ make clean
>> $ make
>>
>> will get you a more useful error. dunno, its a fairly trivial little
>> library, only a single .c file.
>
> If looked quickly over diverse Makefile one was saying liblk FORCE, so
> it should be built, but is NOT!
>
> Thanks anyway, Peter for all the hints!
>
> If you tell me where you discuss perf issues I can describe the problem.
>

Just as a sidenote for cleaning up (that seems to be the "official" way):

$ LANG=C LC_ALL=C make -C tools/ liblk_clean

$ LANG=C LC_ALL=C make -C tools/ perf_clean

- Sedat -
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