From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937612Ab0CPJvO (ORCPT ); Tue, 16 Mar 2010 05:51:14 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:43378 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932488Ab0CPJvN (ORCPT ); Tue, 16 Mar 2010 05:51:13 -0400 Date: Tue, 16 Mar 2010 02:51:34 -0700 (PDT) Message-Id: <20100316.025134.196872789.davem@davemloft.net> To: mingo@elte.hu Cc: acme@infradead.org, linux-kernel@vger.kernel.org, fweisbec@gmail.com, efault@gmx.de, a.p.zijlstra@chello.nl, paulus@samba.org Subject: Re: [PATCH 2/2] perf top: Properly notify the user that vmlinux is missing From: David Miller In-Reply-To: <20100316094611.GG7961@elte.hu> References: <20100315192125.GL6965@ghostprotocols.net> <20100315.122605.124976085.davem@davemloft.net> <20100316094611.GG7961@elte.hu> X-Mailer: Mew version 6.3 on Emacs 23.1 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ingo Molnar Date: Tue, 16 Mar 2010 10:46:11 +0100 > i'd really like that to happen - i.e. if we had the kernel (and modules) image > exposed as a (almost-)standard ELF object via /sys or so. > > We already have some aspects of that, via /sys/kernel/notes, but it should be > done for real. That would also make build-id support less of a hack. > > ( I'd not include CFI debuginfo in there though - that would be way too large. > More compressed debuginfo could be included perhaps. ) That's interesting and useful, but wouldn't help my case as the images I'm usually booting are completely stripped. That's why I end up with "[kernel.kallsyms]" for kernel profiling :-)