linux-kernel - Re: [PATCH 52/52] perf tools: Add support for 32-bit compatibility VDSOs

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Message-ID: <20140723130949.GH20303@kernel.org>
Date:	Wed, 23 Jul 2014 10:09:49 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Adrian Hunter <adrian.hunter@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 52/52] perf tools: Add support for 32-bit compatibility
 VDSOs

Em Wed, Jul 23, 2014 at 03:05:25PM +0200, Jiri Olsa escreveu:
> On Tue, Jul 22, 2014 at 04:18:01PM +0300, Adrian Hunter wrote:
> > 'perf record' post-processes the event stream  to create
> > a list of build-ids for object files for which sample
> > events have been recorded.  That results in those object
> > files being recorded in the build-id cache.
> > 
> > In the case of VDSO, perf tools reads it from memory
> > and copies it into a temporary file, which as decribed
> > above, gets added to the build-id cache.
> > 
> > Then when the perf.data file is processed by other
> > tools, the build-id of VDSO is listed in the perf.data
> > file and the VDSO can be read from the build-id cache.
> > In that case the name of the map, the short name of the
> > DSO, and the entry in the build-id cache are all
> > "[vdso]".
> > 
> 
> heya,
> I reviewed vdso changes:
> 
> perf tools: Pass machine to vdso__dso_findnew()
> perf tools: Group VDSO global variables into a structure
> perf tools: Fix the lifetime of the VDSO temporary file
> perf tools: Add vdso__new()
> perf tools: Separate the VDSO map name from the VDSO dso name
> perf tools: Build programs to copy 32-bit compatibility VDSOs
> perf tools: Add dso__type()
> perf tools: Add thread parameter to vdso__dso_findnew()
> perf tools: Add support for 32-bit compatibility VDSOs
> 
> apart from small comments for above patches:
> 
> Acked-by: Jiri Olsa <jolsa@...hat.com>
> 
> Arnaldo,
> I can handle those if needed, please let me know

I can take those after I go thru them, will add your acked-by. But since
you sayd "I reviewed", wouldn't it be better to s/Acked-by/Reviewed-by/g
?

- Arnaldo
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