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Re: [PATCH v2] tools: perf: fix linker error when libelf config is disabled

From Sudeep Holla <sudeep.holla@arm.com>
Newsgroups linux.kernel
Subject Re: [PATCH v2] tools: perf: fix linker error when libelf config is disabled
Date 2017-01-04 17:10 +0100
Message-ID <sVWit-6Xe-9@gated-at.bofh.it> (permalink)
References <sVUgF-5oR-5@gated-at.bofh.it> <sVW8N-6Ds-3@gated-at.bofh.it> <sVWit-6Xe-11@gated-at.bofh.it>
Organization ARM

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On 04/01/17 16:06, Jiri Olsa wrote:
> On Wed, Jan 04, 2017 at 03:56:03PM +0000, Sudeep Holla wrote:
>> When libelf is disabled in the configuration, we get the following
>> linker error:
>>   LINK     libperf-jvmti.so
>>   ld: cannot find -lelf
>>   Makefile.perf:515: recipe for target 'libperf-jvmti.so' failed
>>
>> Jiri pointed out that both librt and libelf are not really required. So
>> this patch fixes the linker error by getting rid of unwanted libraries
>> in the linker stage.
>>
>> Fixes: d4dfdf00d43e ("perf jvmti: Plug compilation into perf build")
> 
> hum, AFAICS it linked -lelf and -lrt even before right? ;-)
> 

Yes, sorry I forgot to remove that and trace it back the actual commit.

-- 
Regards,
Sudeep

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Thread

[PATCH] tools: perf: fix linker error when libelf config is disabled Sudeep Holla <sudeep.holla@arm.com> - 2017-01-04 15:00 +0100
  Re: [PATCH] tools: perf: fix linker error when libelf config is  disabled Jiri Olsa <jolsa@redhat.com> - 2017-01-04 15:50 +0100
    Re: [PATCH] tools: perf: fix linker error when libelf config is  disabled Sudeep Holla <sudeep.holla@arm.com> - 2017-01-04 17:00 +0100
  [PATCH v2] tools: perf: fix linker error when libelf config is disabled Sudeep Holla <sudeep.holla@arm.com> - 2017-01-04 17:00 +0100
    Re: [PATCH v2] tools: perf: fix linker error when libelf config is  disabled Sudeep Holla <sudeep.holla@arm.com> - 2017-01-04 17:10 +0100
      Re: [PATCH v2] tools: perf: fix linker error when libelf config is  disabled Sudeep Holla <sudeep.holla@arm.com> - 2017-01-04 17:20 +0100
        Re: [PATCH v2] tools: perf: fix linker error when libelf config is  disabled Jiri Olsa <jolsa@redhat.com> - 2017-01-04 18:30 +0100
          Re: [PATCH v2] tools: perf: fix linker error when libelf config is  disabled Sudeep Holla <sudeep.holla@arm.com> - 2017-01-04 18:40 +0100
    Re: [PATCH v2] tools: perf: fix linker error when libelf config is  disabled Jiri Olsa <jolsa@redhat.com> - 2017-01-04 17:10 +0100
    Re: [PATCH v3] tools: perf: fix linker error when libelf config is  disabled Jiri Olsa <jolsa@redhat.com> - 2017-01-04 18:40 +0100
    [PATCH v3] tools: perf: fix linker error when libelf config is disabled Sudeep Holla <sudeep.holla@arm.com> - 2017-01-04 19:00 +0100

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