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=-26.3 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, 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 D2E5DC433ED for ; Fri, 16 Apr 2021 20:39:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A24A1613CF for ; Fri, 16 Apr 2021 20:39:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235454AbhDPUkQ (ORCPT ); Fri, 16 Apr 2021 16:40:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41424 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343938AbhDPUj5 (ORCPT ); Fri, 16 Apr 2021 16:39:57 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B393FC061343 for ; Fri, 16 Apr 2021 13:39:16 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id v2so7517537ybc.17 for ; Fri, 16 Apr 2021 13:39:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=ZVSi0+WBJd8cK80BxQ4Osd57SVpFSIT5lMOEx2WBOew=; b=b41bDVDJUgY/qmasSTsJuDALMyRKA0DquCDzT5YifV4psrwpRjIE5VqspQws2ol5jn mrX51iabMpAK3R8k61X0UplwjTLmDu6yT5/7dmJSNcMpoAeBzwgWl28wQzjmDKk1E7IP x1vcjYAP3urux/XhJ6MXq38mVThhrHqGeOlnQ/EaPIny+LP6TdRu1EC/j+CcDLbnokCA n5cz5zYxFWJEE6xxZij4vS0empLBUFmEy8aXeEolzwVa0Mz3ntE2Ox0NEstpix12KO6R BW1Dz6PBLKNJ+bPORL3EVHS1ggmEfMJ0ilQ/c/pNHTkPumDF625dTGsEJFL6vm647Dgr EOEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=ZVSi0+WBJd8cK80BxQ4Osd57SVpFSIT5lMOEx2WBOew=; b=c4w5Mg4WdyvU8gYt/yQRWQPgZ70M4WH6C7NzsDaNY0f435NQH4e1/9sQL1F7J9Oo1z MVGft8cjNFeYi8jlqTx/L6jBAMM5+fMx251MdSJwQaW3+ydbenZUcvxHfZCKkEWEidOI R/gUWMVL9WQe9VvxhXqLcYf4GUN3Jq/OnfGMaewfaor0XkPd+0RDnTyTSz5XveVWKqj+ +yNSHSSgOt/ILLQ2bI3ui2J4CVFpqHBYBqjg83IgUf3d6E3D6/smYLJSzs58Zt2eFZgu SvRJrtCASXZ4jMHU2Jf11338clz4iCi644sZ9BDFI2rT/Lp817OD2LWNlgEDFl7izJdg T56Q== X-Gm-Message-State: AOAM533wUkXsDckPROsNZR4sfmEhU+x/7pk7ZgO6wuuDC+B7oPQCgGsS tHREQufDQ+3lGqo2Ugg15hiouYKHyGWfzlpR/AI= X-Google-Smtp-Source: ABdhPJwp4jV6Uc3XHwPdhaTYb8BA7WByxBbaC9LJGrPzkVX6yoMku4z3I0Vqt531iRR6rqD41CVsz7MEVhSflzBTG8Q= X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:e262:3d8e:cbf:6164]) (user=samitolvanen job=sendgmr) by 2002:a25:6885:: with SMTP id d127mr1406777ybc.378.1618605555941; Fri, 16 Apr 2021 13:39:15 -0700 (PDT) Date: Fri, 16 Apr 2021 13:38:44 -0700 In-Reply-To: <20210416203844.3803177-1-samitolvanen@google.com> Message-Id: <20210416203844.3803177-16-samitolvanen@google.com> Mime-Version: 1.0 References: <20210416203844.3803177-1-samitolvanen@google.com> X-Mailer: git-send-email 2.31.1.368.gbe11c130af-goog Subject: [PATCH 15/15] x86, build: Allow CONFIG_CFI_CLANG to be selected From: Sami Tolvanen To: x86@kernel.org Cc: Kees Cook , Josh Poimboeuf , Peter Zijlstra , Nathan Chancellor , Nick Desaulniers , Sedat Dilek , linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, Sami Tolvanen Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Select ARCH_SUPPORTS_CFI_CLANG to allow CFI to be enabled. Signed-off-by: Sami Tolvanen --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index bf69d07e46b8..81d2dc568e56 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -106,6 +106,7 @@ config X86 select ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP if NR_CPUS <= 4096 select ARCH_SUPPORTS_LTO_CLANG if X86_64 select ARCH_SUPPORTS_LTO_CLANG_THIN if X86_64 + select ARCH_SUPPORTS_CFI_CLANG if X86_64 select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_MEMTEST select ARCH_USE_QUEUED_RWLOCKS -- 2.31.1.368.gbe11c130af-goog