From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030421AbWHXRdq (ORCPT ); Thu, 24 Aug 2006 13:33:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030422AbWHXRdq (ORCPT ); Thu, 24 Aug 2006 13:33:46 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:4229 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S1030421AbWHXRdp (ORCPT ); Thu, 24 Aug 2006 13:33:45 -0400 Subject: Re: [PATCH 2/4] Core support for --combine -fwhole-program From: David Woodhouse To: Josh Triplett Cc: linux-kernel@vger.kernel.org In-Reply-To: <1156440438.3418.25.camel@josh-work.beaverton.ibm.com> References: <1156429585.3012.58.camel@pmac.infradead.org> <1156433167.3012.119.camel@pmac.infradead.org> <1156440438.3418.25.camel@josh-work.beaverton.ibm.com> Content-Type: text/plain Date: Thu, 24 Aug 2006 18:33:23 +0100 Message-Id: <1156440803.3012.170.camel@pmac.infradead.org> Mime-Version: 1.0 X-Mailer: Evolution 2.6.3 (2.6.3-1.fc5.5.dwmw2.1) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2006-08-24 at 10:27 -0700, Josh Triplett wrote: > Would the generation and use of preprocessed source files ($x.c -> $x.i) > help solve the "standard CFLAGS" problem here, and allow a subsequent > single compilation of the entire kernel (sans modules) with --combine > -fwhole-program? Not for stuff like CFLAGS_raid6altivec1.o := -maltivec -mabi-altivec Stuff which is _purely_ #defines, such as... ncr53c8xx-flags-$(CONFIG_SCSI_ZALON) \ := -DCONFIG_NCR53C8XX_PREFETCH -DSCSI_NCR_BIG_ENDIAN \ -DCONFIG_SCSI_NCR53C8XX_NO_WORD_TRANSFERS CFLAGS_ncr53c8xx.o := $(ncr53c8xx-flags-y) $(ncr53c8xx-flags-m) ... can probably be done differently anyway. It's not entirely unreasonable to treat files with their own CFLAGS just as we have to treat .S files -- compile them separately, then link. -- dwmw2