linux-kernel - Re: [PATCH v2 3/4] perf annotate: configure objdump path at compile time

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Message-ID: <20121001142737.GC9829@ghostprotocols.net>
Date:	Mon, 1 Oct 2012 07:27:37 -0700
From:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Namhyung Kim <namhyung@...nel.org>,
	Irina Tirdea <irina.tirdea@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>,
	Paul Mackerras <paulus@...ba.org>,
	David Ahern <dsahern@...il.com>,
	Pekka Enberg <penberg@...nel.org>,
	Jiri Olsa <jolsa@...hat.com>,
	Irina Tirdea <irina.tirdea@...el.com>
Subject: Re: [PATCH v2 3/4] perf annotate: configure objdump path at compile
 time

Em Mon, Oct 01, 2012 at 09:21:54AM +0200, Ingo Molnar escreveu:
> * Namhyung Kim <namhyung@...nel.org> wrote:
> > What I'm thinking is that perf can try to find cross-built binutils
> > when it detects perf.data file is came from other
> > machine/architecture. Fortunately perf_session_env was added
> > recently and it has the arch information from the file so we can use
> > it to find the path.

> > Following patch is a proof-of-concept patch and only build tested.
> > What do you think?  Could you play with it for some time? :)

> This is a pretty clever idea - much better than hard-coding 
> architecture details at build time.

Indeed, great idea!

- Arnaldo
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