From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qk1-f202.google.com (mail-qk1-f202.google.com [209.85.222.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 737C872 for ; Thu, 30 Sep 2021 18:06:11 +0000 (UTC) Received: by mail-qk1-f202.google.com with SMTP id w2-20020a3794020000b02903b54f40b442so14390133qkd.0 for ; Thu, 30 Sep 2021 11:06:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=YTs3o+Lcv5DCr2QuauAOS05kw4e75hGm1Ap6LaNmDuQ=; b=X2H89x2ZY/Vpdf/BQvunK6wfPqMyb4DEDk9pbiFs6nK3/2FbhHHbrE6V4xLhMLMO72 drYHTD2/KCJ6G99TSY9C0aO1sKa6Of2qEhogYWv2HQTGYu0JWgUpAaLMIJzwMu+or7pa iHk0oBTabObWMRZMT4JZN8w06cBqyUEON9DOp1KFYQGQ3SL+tbs7p/0CMzwj/JX+J6Bv wWym0ky/0NAtPtaaqTZBHkMxxafKQWsjUiZH+m2pu8IQRQNs99qH5Pfj/TWo3mDJ7327 NFrnHKXLRwYMI9ciPDGRpaNES499YGFq66cYMWgu6ugJqzdhsfWL/THEpUxc1niccano aXmw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=YTs3o+Lcv5DCr2QuauAOS05kw4e75hGm1Ap6LaNmDuQ=; b=Zzo+shvGj5hLaglncACUixzFcLFsFjF7DjfqETVhqQRDsU9lLOtWdp+moUCc7bPZxF wqaE1PXWUi5wvti0dkDpLGQS7Dh5mvpYlkZiAJF0dLU5QJ5abPrJKlMsEVZ4H/1sLgTQ eYT3Caj8eQFR7BbuTyR/JLaSsJmfSQ1iOeUMGLeRW0LgnBF/jeNZoW03UFlVsmUXo1vm TO8u6sMNhyNFmwxystOnRukPp0EQZC/blblaYYDAWXFLdJvOJ3q4ODerPo8dmU/zN4rO B/RdcbD++8Cgx+N5vjjGc04dAPl2PkAYyXGdyml9AOqrgNxieMm+lplZ2938fCNdseFb n/UQ== X-Gm-Message-State: AOAM5309BlDA5rYJujsnB7taSgmQ0USW05rd3n0ZNp8ATr4ev5TC3pYi W9hDTj4Y/joVJ1DLcMgP1kpliOE8q+azcUNAOwk= X-Google-Smtp-Source: ABdhPJxQHjdB5w0u1pGsQKGQzmTIef8NLz4brDiegqDKDUQgvgv1vEwzWyrPFnKCP//0W8Pt+jlJdM7oOGX+dho9Rwo= X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:ce43:4366:95ca:d6e9]) (user=samitolvanen job=sendgmr) by 2002:a0c:8e8e:: with SMTP id x14mr5086772qvb.67.1633025170495; Thu, 30 Sep 2021 11:06:10 -0700 (PDT) Date: Thu, 30 Sep 2021 11:05:31 -0700 In-Reply-To: <20210930180531.1190642-1-samitolvanen@google.com> Message-Id: <20210930180531.1190642-16-samitolvanen@google.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20210930180531.1190642-1-samitolvanen@google.com> X-Mailer: git-send-email 2.33.0.800.g4c38ced690-goog Subject: [PATCH v4 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, llvm@lists.linux.dev, Sami Tolvanen Content-Type: text/plain; charset="UTF-8" Select ARCH_SUPPORTS_CFI_CLANG to allow CFI to be enabled with Clang >= 13. Link: https://bugs.llvm.org/show_bug.cgi?id=51588 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 16e216b57863..ea6d255a125f 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -107,6 +107,7 @@ config X86 select ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP if NR_CPUS <= 4096 select ARCH_SUPPORTS_LTO_CLANG select ARCH_SUPPORTS_LTO_CLANG_THIN + select ARCH_SUPPORTS_CFI_CLANG if X86_64 && CLANG_VERSION >= 130000 select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_MEMTEST select ARCH_USE_QUEUED_RWLOCKS -- 2.33.0.800.g4c38ced690-goog 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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E0BDC433EF for ; Thu, 30 Sep 2021 18:07:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1137261164 for ; Thu, 30 Sep 2021 18:07:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353170AbhI3SJL (ORCPT ); Thu, 30 Sep 2021 14:09:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353218AbhI3SID (ORCPT ); Thu, 30 Sep 2021 14:08:03 -0400 Received: from mail-qk1-x749.google.com (mail-qk1-x749.google.com [IPv6:2607:f8b0:4864:20::749]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 58ADBC0613E3 for ; Thu, 30 Sep 2021 11:06:11 -0700 (PDT) Received: by mail-qk1-x749.google.com with SMTP id t2-20020a05620a450200b0045e34e4f9c7so14188790qkp.18 for ; Thu, 30 Sep 2021 11:06:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=YTs3o+Lcv5DCr2QuauAOS05kw4e75hGm1Ap6LaNmDuQ=; b=X2H89x2ZY/Vpdf/BQvunK6wfPqMyb4DEDk9pbiFs6nK3/2FbhHHbrE6V4xLhMLMO72 drYHTD2/KCJ6G99TSY9C0aO1sKa6Of2qEhogYWv2HQTGYu0JWgUpAaLMIJzwMu+or7pa iHk0oBTabObWMRZMT4JZN8w06cBqyUEON9DOp1KFYQGQ3SL+tbs7p/0CMzwj/JX+J6Bv wWym0ky/0NAtPtaaqTZBHkMxxafKQWsjUiZH+m2pu8IQRQNs99qH5Pfj/TWo3mDJ7327 NFrnHKXLRwYMI9ciPDGRpaNES499YGFq66cYMWgu6ugJqzdhsfWL/THEpUxc1niccano aXmw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=YTs3o+Lcv5DCr2QuauAOS05kw4e75hGm1Ap6LaNmDuQ=; b=4zYTDacZqN+Lg10kcrJv1jCkG0POd6a2gMiUZYNECHQlfT/nrKJCzkqWdWeB1r+2ry sDUMbi069ow0ZgXxlVDvhQMXTFQTWq0LYuO/uC49psYrvrxsBHAI10jcPFv1Nl4f77kq 8jRCUuIr3ALdvk8BXFM4pDA+uxPQ/SCaBUcZiVn3b5GoAb6C52wIA7sh/KTyIw8AAnuK xawR9xzQ9IBGT+phNzZZwBn45YqiheEdIgdwCjIe8rHBLuJQDCQv/iH2kz7hP9k/4FwU Op1qfl6dR+FGN5VwU2FEUldyeopgcZZOnYHYytJU8/sef6Zbt2c+95+mXWubrCsIgkod bSVQ== X-Gm-Message-State: AOAM531FTYVyeSfn/uJ0pqqErd/urgiBzGUt8oNgJ0Hz6yyUWHakuQAs UpIvuHiYkEQ3Cls+60X/w0rB7+6Re7EGJ9VgfIs= X-Google-Smtp-Source: ABdhPJxQHjdB5w0u1pGsQKGQzmTIef8NLz4brDiegqDKDUQgvgv1vEwzWyrPFnKCP//0W8Pt+jlJdM7oOGX+dho9Rwo= X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:ce43:4366:95ca:d6e9]) (user=samitolvanen job=sendgmr) by 2002:a0c:8e8e:: with SMTP id x14mr5086772qvb.67.1633025170495; Thu, 30 Sep 2021 11:06:10 -0700 (PDT) Date: Thu, 30 Sep 2021 11:05:31 -0700 In-Reply-To: <20210930180531.1190642-1-samitolvanen@google.com> Message-Id: <20210930180531.1190642-16-samitolvanen@google.com> Mime-Version: 1.0 References: <20210930180531.1190642-1-samitolvanen@google.com> X-Mailer: git-send-email 2.33.0.800.g4c38ced690-goog Subject: [PATCH v4 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, llvm@lists.linux.dev, 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 with Clang >= 13. Link: https://bugs.llvm.org/show_bug.cgi?id=51588 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 16e216b57863..ea6d255a125f 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -107,6 +107,7 @@ config X86 select ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP if NR_CPUS <= 4096 select ARCH_SUPPORTS_LTO_CLANG select ARCH_SUPPORTS_LTO_CLANG_THIN + select ARCH_SUPPORTS_CFI_CLANG if X86_64 && CLANG_VERSION >= 130000 select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_MEMTEST select ARCH_USE_QUEUED_RWLOCKS -- 2.33.0.800.g4c38ced690-goog