From: Masami Hiramatsu <mhiramat@redhat.com>
To: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>, lkml <linux-kernel@vger.kernel.org>,
Paul Mackerras <paulus@samba.org>,
Peter Zijlstra <peterz@infradead.org>,
Mike Galbraith <efault@gmx.de>,
Frederic Weisbecker <fweisbec@gmail.com>,
systemtap <systemtap@sources.redhat.com>,
DLE <dle-develop@lists.sourceforge.net>
Subject: Re: [PATCH -tip 2/4] perf probe: Fix to use symtab only if no debuginfo
Date: Mon, 26 Apr 2010 14:59:36 -0400 [thread overview]
Message-ID: <4BD5E298.4020506@redhat.com> (raw)
In-Reply-To: <20100426124815.GD7460@ghostprotocols.net>
Arnaldo Carvalho de Melo wrote:
> Em Wed, Apr 21, 2010 at 03:56:24PM -0400, Masami Hiramatsu escreveu:
>> Fix perf probe to use symtab only if there is no debuginfo,
>> because debuginfo has more precise information than symtab.
>
> "more precise"? Wouldn't it be "more expressive", i.e. with more
> information (parameter list with types, return type, location of
> parameters, etc), because what is common to both have the same value,
> i.e. the function address and size.
Indeed. debuginfo has just more information than symtab, but
symtab certainly provides precise information for symbol-address.
Thank you,
--
Masami Hiramatsu
e-mail: mhiramat@redhat.com
next prev parent reply other threads:[~2010-04-26 19:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-21 19:56 [PATCH -tip 1/4] [BUGFIX] perf tools: Initialize dso->node member in dso__new Masami Hiramatsu
2010-04-21 19:56 ` [PATCH -tip 2/4] perf probe: Fix to use symtab only if no debuginfo Masami Hiramatsu
2010-04-26 12:48 ` Arnaldo Carvalho de Melo
2010-04-26 18:59 ` Masami Hiramatsu [this message]
2010-04-26 19:08 ` Arnaldo Carvalho de Melo
2010-04-26 19:10 ` Masami Hiramatsu
2010-04-27 12:58 ` [tip:perf/core] " tip-bot for Masami Hiramatsu
2010-04-21 19:56 ` [PATCH -tip 3/4] perf probe: Fix to exit callback soon after finding too many probe points Masami Hiramatsu
2010-04-27 12:58 ` [tip:perf/core] " tip-bot for Masami Hiramatsu
2010-04-21 19:56 ` [PATCH -tip 4/4] perf probe: Add --max-probes option Masami Hiramatsu
2010-04-27 12:59 ` [tip:perf/core] " tip-bot for Masami Hiramatsu
2010-04-26 14:01 ` [PATCH -tip 1/4] [BUGFIX] perf tools: Initialize dso->node member in dso__new Arnaldo Carvalho de Melo
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