From patchwork Wed Jan 20 17:38:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Thierry X-Patchwork-Id: 367357 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=-18.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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 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 7C3D5C433E6 for ; Wed, 20 Jan 2021 18:48:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2BE9220575 for ; Wed, 20 Jan 2021 18:48:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390254AbhATSrw (ORCPT ); Wed, 20 Jan 2021 13:47:52 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:50531 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390320AbhATRkR (ORCPT ); Wed, 20 Jan 2021 12:40:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611164331; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oYWTEQ/huFSMzsrpwj0azmoT19+DGoe9MjwOTg0OH5c=; b=OYOW84UWpt+8SUrCbZAXXaai1E8SVi2esOyGtPEoAUgM7Ykdk5Hpeb+9DLL21tqsH6r2c2 WHoxF3GgSNVb+Bp6M4i2GrHcIBBfXJjDRhcG7mp62wSQ0mUAkReXWpz5vehfRIHKxKGlQY zuMEMbZD9XgFe7fuOSGjQ9k4W4vUJgk= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-456-svp07V-tOqOl1PmP0_VJlA-1; Wed, 20 Jan 2021 12:38:47 -0500 X-MC-Unique: svp07V-tOqOl1PmP0_VJlA-1 Received: by mail-wm1-f70.google.com with SMTP id f16so1819356wmq.7 for ; Wed, 20 Jan 2021 09:38:47 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=oYWTEQ/huFSMzsrpwj0azmoT19+DGoe9MjwOTg0OH5c=; b=A2OHoZSgODa1ImkGqbgpFXTisvYUbCegR4CphhLKci02K6m3Stw/Um8w9/5w2v/1O6 G2IMcVv9K2l3Ublt+AX/JHfobjkAPupp5d7/hvWnPi31xd2tRozLbA+w9a+qxVrH/+x/ GekVTFkhohfu6UL8ad61qJ8MosrQDxiPYrt/rDsac+5NHCuE6YA7VJv5HaMGOVUsnrWE RyFqB3P/WeTEBxXiKBDHD3RpW9eU20gdfBpiQnx4XFSEOU0YIctY9GVyQkoC5VOdobsr r0n64KqKNiwUXAkB4qYvwP9GiIeeNPLf9KzUXMsEEC17mYDyvsUCLxIX0wOPhZwCdt+s WKXA== X-Gm-Message-State: AOAM531xpVm+L4PvXD7i9HTQObiC1MtUcj6icwt0Z8+P3XUlsISvFpWo V6BV1klabviI172hG/R4MCIzyF9TgUyNHd/zsXLVqJdm0efI8o8ts9uxdGmCmwT5G5dfPbRNsqS VKPnmfaYBYV47P4UTJdeg X-Received: by 2002:a1c:9dd5:: with SMTP id g204mr5387434wme.37.1611164326104; Wed, 20 Jan 2021 09:38:46 -0800 (PST) X-Google-Smtp-Source: ABdhPJxTEEAVF5Wb5DvfyKAa6iIpcJZxKaj/uKR/NeIqD5Cr6bWjyZklj7zuAijYtvvTiqRBg2VXRA== X-Received: by 2002:a1c:9dd5:: with SMTP id g204mr5387418wme.37.1611164325951; Wed, 20 Jan 2021 09:38:45 -0800 (PST) Received: from redfedo.redhat.com ([2a01:cb14:499:3d00:cd47:f651:9d80:157a]) by smtp.gmail.com with ESMTPSA id x11sm4948325wmi.4.2021.01.20.09.38.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jan 2021 09:38:45 -0800 (PST) From: Julien Thierry To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: catalin.marinas@arm.com, will@kernel.org, ardb@kernel.org, masahiroy@kernel.org, keescook@chromium.org, michal.lkml@markovi.net, jpoimboe@redhat.com, peterz@infradead.org, mark.rutland@arm.com, broonie@kernel.org, linux-efi@vger.kernel.org, linux-hardening@vger.kernel.org, Raphael Gault , Julien Thierry Subject: [RFC PATCH 17/17] objtool: arm64: Enable stack validation for arm64 Date: Wed, 20 Jan 2021 18:38:00 +0100 Message-Id: <20210120173800.1660730-18-jthierry@redhat.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20210120173800.1660730-1-jthierry@redhat.com> References: <20210120173800.1660730-1-jthierry@redhat.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-efi@vger.kernel.org From: Raphael Gault Add build option to run stack validation at compile time. Signed-off-by: Raphael Gault Signed-off-by: Julien Thierry --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 93a320cc8e03..3f297d61b56b 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -185,6 +185,7 @@ config ARM64 select MMU_GATHER_RCU_TABLE_FREE select HAVE_RSEQ select HAVE_STACKPROTECTOR + select HAVE_STACK_VALIDATION if CC_IS_GCC select HAVE_SYSCALL_TRACEPOINTS select HAVE_KPROBES select HAVE_KRETPROBES