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Date: Fri, 30 Aug 2013 16:54:08 +0200
Message-ID: <CA+icZUUyiZXwjBkEtzHGW0sN0fvVDx_wrt5NT2Wuy5hNODk7Ow@mail.gmail.com>
Subject: Re: [3.11-rc7] Building perf-only the "official" way seems to be BROKEN?
From: Sedat Dilek <sedat.dilek@gmail.com>
To: Ingo Molnar <mingo@kernel.org>, Peter Zijlstra <peterz@infradead.org>,
        Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>
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On Fri, Aug 30, 2013 at 4:28 PM, Sedat Dilek <sedat.dilek@gmail.com> wrote:
> [...]
>
>> [ BUILD PERF-ONLY ]
>>
>> So, I have finished a Linux-kernel build and wanted to build perf
>> (from tools-dir) ONLY!
>>
>> I followed the advices (I am a "good" guy) seen for example in the
>> "tools/Makefile" file.
>>
>> [ tools/Makefile ]
>> ...
>>         @echo 'You can do:'
>>         @echo ' $$ make -C tools/ <tool>_install' <--- NOTE THIS ONE!
>>         @echo ''
>>         @echo '  from the kernel command line to build and install one of'
>>         @echo '  the tools above'
>>         @echo ''
>>         @echo '  $$ make tools/install'
>>         @echo ''
>>         @echo '  installs all tools.'
>> ...
>>
>> OK, so I did this for a perf-only build...
>>
>>
>>    $ LANG=C LC_ALL=C make -C tools/ perf_install 2>&1 | tee ../build-perf.txt
>>
>> ...this breaks like this...
>>
>> ...
>> make[2]: Entering directory
>> `/home/wearefam/src/linux-kernel/linux/tools/lib/traceevent'
>> make[2]: Leaving directory
>> `/home/wearefam/src/linux-kernel/linux/tools/lib/traceevent'
>>     LINK perf
>> gcc: error: /home/wearefam/src/linux-kernel/linux/tools/lib/lk/liblk.a:
>> No such file or directory
>> make[1]: *** [perf] Error 1
>> make[1]: Leaving directory `/home/wearefam/src/linux-kernel/linux/tools/perf'
>> make: *** [perf_install] Error 2
>>
>
> [ From #linux-rt (OFTC) ]
>
> [16:17] <acme> dileks_webchat, there are many, many ways to build the tools
> [16:17] <acme> the one I use is:
> [16:17] <acme> make O=/tmp/build/perf -C tools/perf install
> [16:19] <dileks_webchat> acme:  make -C tools/perf install works as
> expected. interesting :-)
>

Attached patch seems to fix the issue when building perf this way...

   $ make -C tools/ perf_install

- Sedat -

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