From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f172.google.com ([209.85.213.172]:63150 "EHLO mail-ig0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752036AbaIAHfH (ORCPT ); Mon, 1 Sep 2014 03:35:07 -0400 MIME-Version: 1.0 In-Reply-To: References: <20140901065916.28909.35097.stgit@zurg> Date: Mon, 1 Sep 2014 11:35:06 +0400 Message-ID: Subject: Re: [PATCH v2 0/4] kconfig: store default ARCH in .config From: Konstantin Khlebnikov Content-Type: text/plain; charset=UTF-8 Sender: linux-kbuild-owner@vger.kernel.org List-ID: To: Geert Uytterhoeven Cc: Michal Marek , "linux-kernel@vger.kernel.org" , linux-kbuild , Paul Bolle On Mon, Sep 1, 2014 at 11:24 AM, Geert Uytterhoeven wrote: > Hi Konstantin, > > On Mon, Sep 1, 2014 at 9:16 AM, Konstantin Khlebnikov wrote: >> This is second attempt of fixing target archecture amnesia. >> v1 patch: http://lkml.kernel.org/r/20140706080234.19520.96704.stgit@zurg >> >> First version saved ARCH as CONFIG_DEFAULT_ARCH and used it as defult ARCH. >> >> This version changes semantic of Kconfig option env="...", now it acts more >> like the user input, except that the value comes from the environment. >> Variable from environment overrides all defaults and value from config file. >> If environment variable is not defined this option has no effect. >> >> So, now ARCH is saved as CONFIG_ARCH. >> >> Also this patchset links CONFIG_CROSS_COMPILE and CROSS_COMPILE in the same way. >> Changing it in command line/environment also updates value in the config file. > > Thanks, I haven't tried this yet, but it looks promising! > > For the record, right now I use a GNUmakefile (which takes precedence over > the Makefile) in the build directory containing e.g. Heh, I've used and seen a lot of such hacks. GNUmakefile also might include Makefile after defining environment. > > MAKEARGS = ARCH=arm CROSS_COMPILE=arm-unknown-linux-gnueabi- > > MAKEFLAGS += --no-print-directory > > .PHONY: all $(MAKECMDGOALS) > > all := $(filter-out all Makefile,$(MAKECMDGOALS)) > > all: > $(MAKE) $(MAKEARGS) $(all) -f Makefile > > Makefile:; > > $(all) %/: all > @: > > Gr{oetje,eeting}s, > > Geert > > -- > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org > > In personal conversations with technical people, I call myself a hacker. But > when I'm talking to journalists I just say "programmer" or something like that. > -- Linus Torvalds