From: Namhyung Kim <namhyung@gmail.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>, Jiri Olsa <jolsa@redhat.com>,
David Ahern <dsahern@gmail.com>
Subject: Re: [RFC/PATCHSET 0/8] perf tools: Minimal build without libelf dependency (v2)
Date: Sat, 23 Jun 2012 00:05:10 +0900 [thread overview]
Message-ID: <1340377510.1478.10.camel@leonhard> (raw)
In-Reply-To: <1340358478.18025.51.camel@twins>
Hi Peter,
2012-06-22 (금), 11:47 +0200, Peter Zijlstra:
> On Fri, 2012-06-22 at 14:37 +0900, Namhyung Kim wrote:
> > And then I realized that the perf record needs to know about the
> > build-id's anyway. :( So I implemented a poor man's version of elf
> > parser only for parsing the build-id info.
>
> Why? the very first versions didn't know about any of that nonsense :-)
> It works just fine as long as you don't go change binaries around.
>
> That said, you did the work already, so no objection, just saying
> builtids aren't that important.
I'm not sure I understood you correctly. But 'perf record' needs to know
about the build-id's to save them to perf.data for 'perf report' later.
And 'perf archive' also needs to know about them to select necessary
binaries for the session.
--
Regards,
Namhyung Kim
next prev parent reply other threads:[~2012-06-22 15:05 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-22 5:37 [RFC/PATCHSET 0/8] perf tools: Minimal build without libelf dependency (v2) Namhyung Kim
2012-06-22 5:37 ` [PATCH 1/8] perf evsel: Fix a build failure on cross compilation Namhyung Kim
2012-06-22 5:37 ` [PATCH 2/8] tools lib traceevent: Make dependency files regeneratable Namhyung Kim
2012-06-28 16:15 ` Arnaldo Carvalho de Melo
2012-07-06 10:52 ` [tip:perf/core] " tip-bot for Namhyung Kim
2012-06-22 5:37 ` [PATCH 3/8] tools lib traceevent: Detect build environment changes Namhyung Kim
2012-06-22 5:37 ` [PATCH 4/8] perf symbols: Introduce symbol__elf_init() Namhyung Kim
2012-06-22 5:37 ` [PATCH 5/8] perf symbols: Do not use ELF's symbol binding constants Namhyung Kim
2012-06-22 12:43 ` Arnaldo Carvalho de Melo
2012-06-22 15:19 ` Namhyung Kim
2012-06-22 15:29 ` Arnaldo Carvalho de Melo
2012-06-22 5:37 ` [PATCH 6/8] perf tools: Split out util/symbol-elf.c Namhyung Kim
2012-06-22 5:37 ` [PATCH 7/8] perf tools: Support minimal build without libelf Namhyung Kim
2012-06-22 5:37 ` [PATCH 8/8] perf symbols: Implement poor man's ELF parser Namhyung Kim
2012-06-22 9:47 ` [RFC/PATCHSET 0/8] perf tools: Minimal build without libelf dependency (v2) Peter Zijlstra
2012-06-22 15:05 ` Namhyung Kim [this message]
2012-06-22 15:18 ` David Ahern
2012-06-22 15:30 ` Namhyung Kim
2012-06-22 15:35 ` David Ahern
2012-06-22 16:14 ` Arnaldo Carvalho de Melo
2012-06-22 16:24 ` David Ahern
2012-06-25 0:51 ` Namhyung Kim
2012-06-22 15:32 ` Arnaldo Carvalho de Melo
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