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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 6CB67C4360C for ; Fri, 11 Oct 2019 00:13:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 484C821920 for ; Fri, 11 Oct 2019 00:13:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="QKMy1WMI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727870AbfJKANk (ORCPT ); Thu, 10 Oct 2019 20:13:40 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:36994 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727532AbfJKAMy (ORCPT ); Thu, 10 Oct 2019 20:12:54 -0400 Received: by mail-pf1-f196.google.com with SMTP id y5so4959360pfo.4 for ; Thu, 10 Oct 2019 17:12:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=aXC4EKkSKWAzbgJ5UkNW5ASNd77O0uNGfoVDwB8PV7o=; b=QKMy1WMIao8eo2h9Q1TmJ+NvwxmYIJS5BiRFvnKXyWnyHt2NVU1sSJRyaYkSK0bnTI 3g26hGi2M+7oPqpQxxO8mfA0+ckl3W/NOZq89OJYBy8zqpl256YQ/kRKmZl3wcK/Al8o WR97u6SnuI6udJBDDM4eXoslNY2BMQS6h8HHA= 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; bh=aXC4EKkSKWAzbgJ5UkNW5ASNd77O0uNGfoVDwB8PV7o=; b=lma9lm83gA2trxx6DrBmEUtHjZk15iNT10ntCGYwZT3uOGMj0QS4MpMPyGZPXDgCHN 0Am3VZmqoYthIvL0MbohyPshGsGeXODLZNnvJhC3J3/wr2plQ7cGKE4dSp6pcZVZVGsY 1kZdUxnbFWEgFCO/4F3F2VvwX2LwRJHxHsnZjDDr3kSwsCskKC166x3gvliiX5Tvc4Y+ i7AGIjI30fEbBcweANAvNz4qY+05krhJJkYNBn5OSOBaEQpoQAnQANIYRID/MtdWBU3x 7rIhE+upeMVWiXiHMwNyvqNzZJZDZ1ig36FXPdt2/yy1R6rHuHFiODMQp7V+1vvOo77q 0KqA== X-Gm-Message-State: APjAAAU88ywLgBM9WTqEHoJ+clp8LGbu1nh4wg/0Cs8oeFqRSdX9E2tX pGBGHEx6Gk+GeInidb5K3xvVKw== X-Google-Smtp-Source: APXvYqwyN8mvkbsH6LAVRfjY92v44FJMaCqPYldcWqY2MvbBlNQ7Douul4dniL7y8RNurjH2A60mLg== X-Received: by 2002:a17:90a:1617:: with SMTP id n23mr14581628pja.75.1570752773811; Thu, 10 Oct 2019 17:12:53 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id w10sm5837436pjq.3.2019.10.10.17.12.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Oct 2019 17:12:52 -0700 (PDT) From: Kees Cook To: Borislav Petkov Cc: Kees Cook , Rick Edgecombe , Dave Hansen , Andy Lutomirski , Arnd Bergmann , Michael Ellerman , Heiko Carstens , Will Deacon , linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-alpha@vger.kernel.org, linux-ia64@vger.kernel.org, linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org, Yoshinori Sato , Michal Simek , linux-parisc@vger.kernel.org, linux-xtensa@linux-xtensa.org, x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 25/29] xtensa: Move EXCEPTION_TABLE to RO_DATA segment Date: Thu, 10 Oct 2019 17:06:05 -0700 Message-Id: <20191011000609.29728-26-keescook@chromium.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191011000609.29728-1-keescook@chromium.org> References: <20191011000609.29728-1-keescook@chromium.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since the EXCEPTION_TABLE is read-only, collapse it into RO_DATA. Signed-off-by: Kees Cook --- arch/xtensa/kernel/vmlinux.lds.S | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S index bdbd7c4056c1..0043d5858f14 100644 --- a/arch/xtensa/kernel/vmlinux.lds.S +++ b/arch/xtensa/kernel/vmlinux.lds.S @@ -14,6 +14,8 @@ * Joe Taylor */ +#define RO_EXCEPTION_TABLE_ALIGN 16 + #include #include #include @@ -130,7 +132,6 @@ SECTIONS .fixup : { *(.fixup) } - EXCEPTION_TABLE(16) /* Data section */ _sdata = .; -- 2.17.1