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=-18.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=ham 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 06BC2C07E9B for ; Mon, 19 Jul 2021 21:38:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D832061165 for ; Mon, 19 Jul 2021 21:38:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359044AbhGSUkN (ORCPT ); Mon, 19 Jul 2021 16:40:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35944 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352508AbhGSUac (ORCPT ); Mon, 19 Jul 2021 16:30:32 -0400 Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F32EC061762 for ; Mon, 19 Jul 2021 14:10:35 -0700 (PDT) Received: by mail-lf1-x12d.google.com with SMTP id i5so32538695lfe.2 for ; Mon, 19 Jul 2021 14:10:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=zb6rr15bSXQwTnBPqI4g1KEDBlw35vq1tATeF4vahZQ=; b=l4zG9dD7D5TRbenNJfZXIawPdQYAmC+6KoVsGyDr8lFRRQ+nMV8zf6CakVJ74ozmx8 vECyxqO5TWTiHtWqFoi+uLPJxjW6P+c6KohNly84YXa5LEl918+v52vTCL8MUc04Fkg0 FidoisJjEXwrJEZGeYj2xyRBG8xrNKwGwp0Jy+L4vyThjoK5911PpAW4hJ2AglZOFbbS jBycTJKlXbwBTmY1x+4yXw8i/eg9P80H1wR6TilaCK4a5Xo+m4xCFix+wNVNQ9hnJRTD Rqkpss14DPkVkhN/ICpG16/LdrQfUh3SMEyfzYX8HNliUh5LEHcAarapfkhyJkKBbSHU nzwA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=zb6rr15bSXQwTnBPqI4g1KEDBlw35vq1tATeF4vahZQ=; b=VacJtUjQ1iQmKJfykFUU1nzsJb8lzC1kI/qSEOh7h3rEDoVREnIHl7GQxTOzZC0OSA 4oKrsuQv/4EGfzNfy0iLcwxvvBrd+7VZyY9p5yNY5R7+W7nfUVzDh4jvfPZnERyHj3eJ 9bgvGrXtb3u/IUx2axXkw2sxIunJFb1Vhyuv6CiEDLJQs8Y7YLyrO82tE4bnIwhD6Xa7 hrizCFXtRfBhCL9J4/D7bwc4cWM6jCV/DCcM5Ew7c1tO25KSin0KVOQuiZ0USbhqRpFP YxRJcjr+mizPcd3ygn4RqqqXs9pzVdIFF/J7zeV+ZJw/h9tRw/NVrqJGrO+lF0Jpx7Vq UFew== X-Gm-Message-State: AOAM530nK5SH6XnUZaHdX0/X7h8WC2ZAdWHBRgIAM6m3bqKEGLEWBlQv 5VmI25aCAV9/NKGG6q50exV7bRc/XkHDzSmh3AQcBg== X-Google-Smtp-Source: ABdhPJy0PZFmXCRTMOqx4byvOHdwlSuCDhdl5z9Ba70UxfA55JfR5WyxqS2xZlcRCm5/igJgrDDjUGdXBJsIXwQbZD4= X-Received: by 2002:ac2:4ac6:: with SMTP id m6mr20508306lfp.73.1626729043401; Mon, 19 Jul 2021 14:10:43 -0700 (PDT) MIME-Version: 1.0 References: <20210707224310.1403944-1-ndesaulniers@google.com> In-Reply-To: <20210707224310.1403944-1-ndesaulniers@google.com> From: Nick Desaulniers Date: Mon, 19 Jul 2021 14:10:32 -0700 Message-ID: Subject: Re: [PATCH 0/2] infer CROSS_COMPILE from ARCH for LLVM=1 LLVM_IAS=1 To: Masahiro Yamada Cc: Miguel Ojeda , Fangrui Song , Michal Marek , Arnd Bergmann , linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, clang-built-linux@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Masahiro, Do you have further thoughts on this series? On Wed, Jul 7, 2021 at 3:43 PM Nick Desaulniers wrote: > > We get constant feedback that the command line invocation of make is too > long. CROSS_COMPILE is helpful when a toolchain has a prefix of the > target triple, or is an absolute path outside of $PATH, but it's mostly > redundant for a given ARCH. > > Instead, let's infer it from ARCH, and move some flag handling into a > new file included from the top level Makefile. > > Nick Desaulniers (2): > Makefile: move initial clang flag handling into scripts/Makefile.clang > Makefile: drop CROSS_COMPILE for LLVM=1 LLVM_IAS=1 > > Documentation/kbuild/llvm.rst | 5 ++++ > MAINTAINERS | 1 + > Makefile | 15 +---------- > scripts/Makefile.clang | 48 +++++++++++++++++++++++++++++++++++ > 4 files changed, 55 insertions(+), 14 deletions(-) > create mode 100644 scripts/Makefile.clang > > > base-commit: a0e781a2a35a8dd4e6a38571998d59c6b0e32cd8 > -- > 2.32.0.93.g670b81a890-goog > -- Thanks, ~Nick Desaulniers