linux-kernel - Re: [PATCH v2 1/2] tools lib traceevent: Export dynamic symbols used by traceevent plugins

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Message-ID: <20150514133105.GC1313@krava.redhat.com>
Date:	Thu, 14 May 2015 15:31:05 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	He Kuang <hekuang@...wei.com>
Cc:	hekuang <hekuang@...o.com>, acme@...nel.org, jolsa@...nel.org,
	mingo@...hat.com, a.p.zijlstra@...llo.nl, wangnan0@...wei.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] tools lib traceevent: Export dynamic symbols used
 by traceevent plugins

On Thu, May 14, 2015 at 08:56:15PM +0800, He Kuang wrote:

SNIP

> >>It seems new targets are needed. In the v2 patch,
> >
> >hum, I dont get it.. why ?
> >
> >dynamic-list-file gets rebuilt any time plugins are rebuilt..
> >why not keep just the 'plugins' dependency?
> 
> You can test your patch as following steps:
> 
> $ touch ../lib/traceevent/plugin_function.c
> $ make
>   CC       plugin_function.o
>   LD       plugin_function-in.o
>   LINK     plugin_function.so
>   GEN      libtraceevent-dynamic-list
> 
> perf is not rebuilt. There should be a 'GEN perf', right?

hum, right.. so this is separated bug that was there even
without your change. I tried to kick my change to address
that and ended up with what you sent in v2 ;-)

I have another comment for your v2, which I'll send right away

thanks,
jirka
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