linux-kernel - Re: [PATCH v3 7/8] perf tools: configure addr2line for cross-compiling

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Message-ID: <20121008210440.GJ2631@ghostprotocols.net>
Date:	Mon, 8 Oct 2012 14:04:40 -0700
From:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To:	Irina Tirdea <irina.tirdea@...il.com>
Cc:	Ingo Molnar <mingo@...nel.org>,
	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>,
	Namhyung Kim <namhyung@...nel.org>,
	Pekka Enberg <penberg@...nel.org>,
	Jiri Olsa <jolsa@...hat.com>,
	Irina Tirdea <irina.tirdea@...el.com>
Subject: Re: [PATCH v3 7/8] perf tools: configure addr2line for
 cross-compiling

Em Mon, Oct 08, 2012 at 09:43:32AM +0300, Irina Tirdea escreveu:
> From: Irina Tirdea <irina.tirdea@...el.com>
> 
> When analyzing data recorded on a target with a different architecture than
> the host, we must use addr2line from the toolchain for that architecture.
> Add a command line option to set addr2line at runtime.
> 
> As we have architecture information of saved perf.data file, we can
> also try to find cross-built addr2line path. The predefined triplets include
> support for Android (arm, x86 and mips architectures).

Comments made for the objdump patch applies here.

Also there are two patches here, no? One adding --addr2line and the
other trying to find it automatically according the perf_session_env
info in the perf.data header.

- Arnaldo
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