Message ID | 20201211184633.3213045-17-samitolvanen@google.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <linux-kbuild-owner@kernel.org> 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=-26.2 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=unavailable 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 CDF82C433FE for <linux-kbuild@archiver.kernel.org>; Fri, 11 Dec 2020 20:27:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7EFC72074B for <linux-kbuild@archiver.kernel.org>; Fri, 11 Dec 2020 20:27:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2436870AbgLKSto (ORCPT <rfc822;linux-kbuild@archiver.kernel.org>); Fri, 11 Dec 2020 13:49:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56248 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2436551AbgLKStD (ORCPT <rfc822;linux-kbuild@vger.kernel.org>); Fri, 11 Dec 2020 13:49:03 -0500 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9842DC08C5C1 for <linux-kbuild@vger.kernel.org>; Fri, 11 Dec 2020 10:47:08 -0800 (PST) Received: by mail-yb1-xb4a.google.com with SMTP id m203so11802291ybf.1 for <linux-kbuild@vger.kernel.org>; Fri, 11 Dec 2020 10:47:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=aVrOLfHwyYehNryqhGtvwSuHF6d3RoXEKFD3yMxv9WQ=; b=crCjjtbF0LFHKaU166OM2hJGeHx2ZHgEPciM6YDUtvwCc0Wk4S0mHDEftwdDa0NcAd jVAeZYS/m2qVwB/wLayUO/zJ7OQ9GjKp3zIKQxrh85/izPBL52cGu+wOe5xhEuDbMihD jtqoSCSPAiWs1YHR/KQXLgIREQJzaCse6S5YKqzfvzE3xM9PHb8XFuHpON0Lx2wF5dvI jdDA/FurnwgxMiNVD8vMMoJgmDP/60Ko/cbUmNw+NN3ZiXIXUK+gSk6MdZLTk5pwRNWm GbcOKP0kdz3TCy88sneI6VUHEzRwj4dCnx7ptdr9FonuwDoHCGtCu9MNXQ48V8VaX9gP pMug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=aVrOLfHwyYehNryqhGtvwSuHF6d3RoXEKFD3yMxv9WQ=; b=OMZ+o0f3MpWFhKFHhYp81wwwhhHDKOUfR5cxRM24DCFVEb5yX2BqWMx6crI7hiB9b0 +UjZSFZ182IDrwYvdOuebxcdgsZb20754EbCXhFUKa9wX0959U9RR4FmJi+d+k+pdXA4 UC4GcSfgdiY7waEAKaCc3HkbTZKpeRmqd3yx+VIyU6hFOLyM4lPpvASfSCUM7UuLOhNL bA9oynE4SQd3pNinri2sRc2kseZVyUMpXIziFCL6Qmrgfp5ZdJevXGU78aUgVnOUoLLt Bh+04KeUjyn9d7BIbIclimEwHogzcwPLXZYrG4wQUf93xMI/2RqJZ9vD6iDHwfzLTlbi gaHw== X-Gm-Message-State: AOAM5325+bZBjv1W/3C4liy2MuvcJDx2yavzqOIoyPi5v7HQzGPhMT6X 351cS6uvPYMXmguUZR5WoI2lLrbBhtvU+mOEoxo= X-Google-Smtp-Source: ABdhPJwNZuID1jcIf8cIxU0Ww5TlvyKdStjDCRvIBB9uhldEdK3D2TeNkVuM9PMADcBOExwezp45jHxla8E+Sk+8d04= Sender: "samitolvanen via sendgmr" <samitolvanen@samitolvanen1.mtv.corp.google.com> X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:f693:9fff:fef4:1b6d]) (user=samitolvanen job=sendgmr) by 2002:a25:9a48:: with SMTP id r8mr18569721ybo.294.1607712427760; Fri, 11 Dec 2020 10:47:07 -0800 (PST) Date: Fri, 11 Dec 2020 10:46:33 -0800 In-Reply-To: <20201211184633.3213045-1-samitolvanen@google.com> Message-Id: <20201211184633.3213045-17-samitolvanen@google.com> Mime-Version: 1.0 References: <20201211184633.3213045-1-samitolvanen@google.com> X-Mailer: git-send-email 2.29.2.576.ga3fc446d84-goog Subject: [PATCH v9 16/16] arm64: allow LTO to be selected From: Sami Tolvanen <samitolvanen@google.com> To: Masahiro Yamada <masahiroy@kernel.org>, Steven Rostedt <rostedt@goodmis.org>, Will Deacon <will@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com>, Peter Zijlstra <peterz@infradead.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, "Paul E. McKenney" <paulmck@kernel.org>, Kees Cook <keescook@chromium.org>, Nick Desaulniers <ndesaulniers@google.com>, clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Sami Tolvanen <samitolvanen@google.com> Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: <linux-kbuild.vger.kernel.org> X-Mailing-List: linux-kbuild@vger.kernel.org |
Series |
Add support for Clang LTO
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expand
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diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index cf7eaaa0fb2f..59abe44845f3 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -73,6 +73,8 @@ config ARM64 select ARCH_USE_SYM_ANNOTATIONS select ARCH_SUPPORTS_MEMORY_FAILURE select ARCH_SUPPORTS_SHADOW_CALL_STACK if CC_HAVE_SHADOW_CALL_STACK + select ARCH_SUPPORTS_LTO_CLANG if CPU_LITTLE_ENDIAN + select ARCH_SUPPORTS_LTO_CLANG_THIN select ARCH_SUPPORTS_ATOMIC_RMW select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && (GCC_VERSION >= 50000 || CC_IS_CLANG) select ARCH_SUPPORTS_NUMA_BALANCING