From patchwork Thu Feb 2 18:05:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nick Desaulniers X-Patchwork-Id: 13126602 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DCE6EC05027 for ; Thu, 2 Feb 2023 18:06:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231970AbjBBSF7 (ORCPT ); Thu, 2 Feb 2023 13:05:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47530 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230404AbjBBSF6 (ORCPT ); Thu, 2 Feb 2023 13:05:58 -0500 Received: from mail-yw1-x1149.google.com (mail-yw1-x1149.google.com [IPv6:2607:f8b0:4864:20::1149]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0615170997 for ; Thu, 2 Feb 2023 10:05:55 -0800 (PST) Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-52423723b55so8371607b3.0 for ; Thu, 02 Feb 2023 10:05:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=Pcrdwdxm3GaoayBnAN0D1xU3wF7llh/DmYJIvd7/CSs=; b=mzUE3hQUlTgZW+KoG/RsOuhs2zwW1QN1QpRvovVnEF9IN2laZNI+3boFOK/RoKamBV Ik3TENNNFksJOyFwovOwFRrUJ/C/ArP78Rq3buhwWQByumqUSbokOCoVWrY0yREvU/aP MopjTY6vlzHrnmtXmSaIAJEafRfIbORNX7iTr1GXFRn5wcxE5ehAvfAeEeMSAUdK7tg+ sE5VR9pQ5OPdUO4z3B7h/R2lJL7IvOM3BpQSxY9B7CZdJTk8N7+UQFj/AJSinav5Zy81 Z4+rtFznfMaTktQ2u/R8sn6a0/9R6HqqTH3psEJKlcyoKRZUgbNU2kkgS/YnC2J9oOd+ FBGQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Pcrdwdxm3GaoayBnAN0D1xU3wF7llh/DmYJIvd7/CSs=; b=zkVkp0nIA4ZVMxggFagiztd04MZPYR5FMoKLnKYtBvLkv6OCKPEJhmK9v04L1w37es DlQ30st3yyaL3OE6w44Nc2PlF53Y4HjT1cZVvZb3mKO8NEdQ1Z+vRwwOV9Qt5iIw4pIK zdISNr8eRRHBDAbpPa9Gskr8RVjgkOJgIFV6ghTlqxS+Rm71r+LvfDtPII/X16WyAsnq NKDjH4EI1DqkedHbD1Fwuus120zYkh5gpqG8CJsuBEGj0BY9wmcwaw6+w7JiqjAZpTMa pEK2e1YOZcJcT5Gn3m8ADQLN4pVeBb0pblu+b8uBSfVdDQHfq3woLh1Q8jy0UDKIrxbT NSDA== X-Gm-Message-State: AO0yUKXYCkf5b9HefxTl1WsnEJ4zcytk8xu/bfTsZZvpm5TGAfX/tGWh SGkB7eGhFaVzC3uMk5rPf24Sg7BwjlODDURh5yc= X-Google-Smtp-Source: AK7set9MnxxlJeWO4CaZjVHGtPtPKCQhta0jpl3+E87wBf9g+u8F6ZpwMKBXdb24b/9R/88Os7Gf6mOLLMdzToqto5Y= X-Received: from ndesaulniers-desktop.svl.corp.google.com ([2620:15c:2d1:203:6989:8074:882f:1b03]) (user=ndesaulniers job=sendgmr) by 2002:a05:6902:1801:b0:7c8:3b5:b58d with SMTP id cf1-20020a056902180100b007c803b5b58dmr1053700ybb.494.1675361154937; Thu, 02 Feb 2023 10:05:54 -0800 (PST) Date: Thu, 2 Feb 2023 10:05:48 -0800 In-Reply-To: <202302021759.syE8waoZ-lkp@intel.com> Mime-Version: 1.0 References: <202302021759.syE8waoZ-lkp@intel.com> X-Developer-Key: i=ndesaulniers@google.com; a=ed25519; pk=UIrHvErwpgNbhCkRZAYSX0CFd/XFEwqX3D0xqtqjNug= X-Developer-Signature: v=1; a=ed25519-sha256; t=1675361148; l=2471; i=ndesaulniers@google.com; s=20220923; h=from:subject; bh=1znbSDzr7hZkfxh9QWcbuf6FrYA2adf+h8XbmU+08m8=; b=iFY7n4mMPyovBg+3CK51+G1hMOc0LKIuvX7lW/a+IEZTQWbLGmXirNYWH5oelsG9pgTMvNZI/cL1 ZwOw0DmCCxOprJENMrlBxlOfc8QFh7HD/W9cTqGqfACAK2gmfd0L X-Mailer: git-send-email 2.39.1.519.gcb327c4b5f-goog Message-ID: <20230202180548.229213-1-ndesaulniers@google.com> Subject: [PATCH v2] Documentation/llvm: add Chimera Linux, Google and Meta datacenters From: Nick Desaulniers To: Masahiro Yamada Cc: Nathan Chancellor , Tom Rix , Nicolas Schier , Jonathan Corbet , llvm@lists.linux.dev, linux-kbuild@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Bill Wendling , Nick Desaulniers , Sedat Dilek , Yonghong Song , Daniel Kolesa , Chris Mason Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org Chimera Linux is a Linux distribution from 2021 that builds its kernels with Clang. Google transitioned its data center fleet to run Clang built kernels in 2021, and Meta did so as well in 2022. Meta talked about this at LPC 2022 at a talk titled Kernel Live Patching at Scale. These were important milestones for building the kernel with Clang. Making note of them helps improve confidence in the project. Reviewed-by: Tom Rix Reviewed-by: Nathan Chancellor Reviewed-by: Sedat Dilek Co-developed-by: Yonghong Song Signed-off-by: Nick Desaulniers --- Cc: Daniel Kolesa Cc: Chris Mason --- For Bernd Helmle! Changes v1 -> v2: * pick up RB tags. * switch signed-off-by to co-developed-by, as per Nathan. * restore `<` I dropped accidentally in v1, as per kernel test robot. Documentation/kbuild/llvm.rst | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/Documentation/kbuild/llvm.rst b/Documentation/kbuild/llvm.rst index 6b2bac8e9ce0..bfb51685073c 100644 --- a/Documentation/kbuild/llvm.rst +++ b/Documentation/kbuild/llvm.rst @@ -15,12 +15,15 @@ such as GCC and binutils. Ongoing work has allowed for `Clang `_ and `LLVM `_ utilities to be used as viable substitutes. Distributions such as `Android `_, `ChromeOS -`_, and `OpenMandriva -`_ use Clang built kernels. `LLVM is a -collection of toolchain components implemented in terms of C++ objects -`_. Clang is a front-end to LLVM that -supports C and the GNU C extensions required by the kernel, and is pronounced -"klang," not "see-lang." +`_, `OpenMandriva +`_, and `Chimera Linux +`_ use Clang built kernels. Google's and Meta's +datacenter fleets also run kernels built with Clang. + +`LLVM is a collection of toolchain components implemented in terms of C++ +objects `_. Clang is a front-end to LLVM +that supports C and the GNU C extensions required by the kernel, and is +pronounced "klang," not "see-lang." Clang -----