Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758987AbZAGOki (ORCPT ); Wed, 7 Jan 2009 09:40:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753933AbZAGOkG (ORCPT ); Wed, 7 Jan 2009 09:40:06 -0500 Received: from vpn.id2.novell.com ([195.33.99.129]:35096 "EHLO vpn.id2.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758784AbZAGOkF convert rfc822-to-8bit (ORCPT ); Wed, 7 Jan 2009 09:40:05 -0500 Message-Id: <4964CCEE.76E4.0078.0@novell.com> X-Mailer: Novell GroupWise Internet Agent 8.0.0 Date: Wed, 07 Jan 2009 14:40:30 +0000 From: "Jan Beulich" To: "Al Viro" Cc: , "Theodore Ts'o" , "Sam Ravnborg" , Subject: Re: [REGRESSION] Recent change to kernel spikes out ccache/distcc References: <20090107051027.GU28946@ZenIV.linux.org.uk> <49647A9E.76E4.0078.0@novell.com> <20090107140328.GV28946@ZenIV.linux.org.uk> <4964CA0A.76E4.0078.0@novell.com> <20090107143711.GW28946@ZenIV.linux.org.uk> In-Reply-To: <20090107143711.GW28946@ZenIV.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1241 Lines: 26 >>> Al Viro 07.01.09 15:37 >>> >On Wed, Jan 07, 2009 at 02:28:10PM +0000, Jan Beulich wrote: >> > b) is there any reason why we can't copy symbol table out of module >> >ourselves (instead of setting SHF_ALLOC on it) and trim the crap out of >> >it? Note that __crc_... is not the only junk in there - you don't need >> >(or want) to keep the things like undefs for /proc/kallsyms purposes. >> >And modules *using* an exported symbol are more common that modules exporting >> >one... Why not copy it at add_kallsyms() time, skipping the junk we don't >> >want anyway? >> >> Would certainly be doable, but would seem reasonable only if it's a small >> set of easily recognizable symbols. If you look at scripts/strip-symbols, >> you may agree that it's better to do this at build time... > >I will not. Undefined ones are far more common than any of those... Undefined ones could certainly be stripped out there (while they definitely can't be at build time). Jan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/