Re: Co-existing of traceevent of trace-cmd and perf

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On 10/1/20 1:21 AM, Vitaly Chikunov wrote:
Zamir, Steven,

On Tue, Sep 29, 2020 at 10:16:33PM +0800, Zamir SUN wrote:
On 9/29/20 9:44 PM, Zamir SUN wrote:
I'm packaging trace-cmd 2.9 into Fedora.

Back in trace-cmd 2.8, all the plugins are under
$(libdir)/trace-cmd/plugins. While as of trace-cmd 2.9, I find the
traceevent plugins are installed in $(libdir) by default. This brings up
an interesting situation - the perf tool also contains a copy of the
traceevent in the same directory. So this means trace-cmd and perf have
file conflicts. In terms of packaging, this means users can only install
one of them, not in parallel (at least for Fedora). So I'd like to see
if there are existing proposals or suggestions for which one is expected
to be used by other utilities? Or is there any official plan to move one
of them to the other directory?

I'm copying Tzvetomir and Jiri as I think you're the first people for
getting the plugins in this directory for trace-cmd and perf
respectively.


Sorry, I just saw an email from Steven mentioning there will be a stand
alone libtraceevent. However I did not find it in git.kernel.org. So I
probably should ask if the stand alone version of libtraceevent is ready
now?

In anticipation of this change I temporary packaged (for ALT) traceevent
into %_libdir while keeping traceevent form perf in %_libexecdir (for a
backward compatibility).


Hi Vitaly,

Thanks for the details. I will consider applying something similar to what you did for trace-cmd before the new library is being used by both in Fedora.

Thanks,


Thanks.

Thanks in advance.


--
Zamir SUN
Fedora user
GPG : 1D86 6D4A 49CE 4BBD 72CF FCF5 D856 6E11 F2A0 525E

--
Zamir SUN
Fedora user
GPG : 1D86 6D4A 49CE 4BBD 72CF FCF5 D856 6E11 F2A0 525E



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