From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7AF2EC742A7 for ; Sat, 13 Jul 2019 13:17:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5A1992083B for ; Sat, 13 Jul 2019 13:17:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727825AbfGMNRG (ORCPT ); Sat, 13 Jul 2019 09:17:06 -0400 Received: from gate.crashing.org ([63.228.1.57]:40756 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727768AbfGMNRF (ORCPT ); Sat, 13 Jul 2019 09:17:05 -0400 Received: from gate.crashing.org (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id x6DDGjIS013036; Sat, 13 Jul 2019 08:16:45 -0500 Received: (from segher@localhost) by gate.crashing.org (8.14.1/8.14.1/Submit) id x6DDGhtO013034; Sat, 13 Jul 2019 08:16:43 -0500 X-Authentication-Warning: gate.crashing.org: segher set sender to segher@kernel.crashing.org using -f Date: Sat, 13 Jul 2019 08:16:43 -0500 From: Segher Boessenkool To: Masahiro Yamada Cc: Stephen Rothwell , linux-kernel@vger.kernel.org, Nicholas Piggin , Paul Mackerras , linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH] powerpc: remove meaningless KBUILD_ARFLAGS addition Message-ID: <20190713131642.GU14074@gate.crashing.org> References: <20190713032106.8509-1-yamada.masahiro@socionext.com> <20190713124744.GS14074@gate.crashing.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190713124744.GS14074@gate.crashing.org> User-Agent: Mutt/1.4.2.3i Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jul 13, 2019 at 07:47:44AM -0500, Segher Boessenkool wrote: > On Sat, Jul 13, 2019 at 12:21:06PM +0900, Masahiro Yamada wrote: > > The KBUILD_ARFLAGS addition in arch/powerpc/Makefile has never worked > > in a useful way because it is always overridden by the following code > > in the top Makefile: > > > > # use the deterministic mode of AR if available > > KBUILD_ARFLAGS := $(call ar-option,D) > > > > The code in the top Makefile was added in 2011, by commit 40df759e2b9e > > ("kbuild: Fix build with binutils <= 2.19"). > > > > The KBUILD_ARFLAGS addition for ppc has always been dead code from the > > beginning. > > That was added in 43c9127d94d6 to replace my 8995ac870273 from 2007. > > Is it no longer supported to build a 64-bit kernel with a toolchain > that defaults to 32-bit, or the other way around? And with non-native > toolchains (this one didn't run on Linux, even). It was an --enable-targets=all toolchain, somewhat common for crosses, if that matters. Segher