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=-11.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 4A893C49EAB for ; Tue, 5 Nov 2019 09:39:03 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 06E6A217F5 for ; Tue, 5 Nov 2019 09:39:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 06E6A217F5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 476l3m4RyKzF44M for ; Tue, 5 Nov 2019 20:39:00 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=linutronix.de (client-ip=2a0a:51c0:0:12e:550::1; helo=galois.linutronix.de; envelope-from=tip-bot2@linutronix.de; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linutronix.de Received: from Galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA256 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 476kq320PvzDqm9 for ; Tue, 5 Nov 2019 20:27:53 +1100 (AEDT) Received: from [5.158.153.53] (helo=tip-bot2.lab.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1iRv7g-0007RZ-9I; Tue, 05 Nov 2019 10:27:36 +0100 Received: from [127.0.1.1] (localhost [IPv6:::1]) by tip-bot2.lab.linutronix.de (Postfix) with ESMTP id EE9A71C0324; Tue, 5 Nov 2019 10:27:30 +0100 (CET) Date: Tue, 05 Nov 2019 09:27:30 -0000 From: "tip-bot2 for Kees Cook" To: linux-tip-commits@vger.kernel.org Subject: [tip: x86/build] x86/vmlinux: Move EXCEPTION_TABLE to RO_DATA segment In-Reply-To: <20191029211351.13243-17-keescook@chromium.org> References: <20191029211351.13243-17-keescook@chromium.org> MIME-Version: 1.0 Message-ID: <157294605067.29376.15944354524301929135.tip-bot2@tip-bot2> X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1, SHORTCIRCUIT=-0.0001 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: linux-kernel@vger.kernel.org Cc: linux-ia64@vger.kernel.org, Dave Hansen , Heiko Carstens , "H. Peter Anvin" , Will Deacon , Ingo Molnar , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Yoshinori Sato , x86-ml , Ingo Molnar , Borislav Petkov , Thomas Lendacky , Kees Cook , Arnd Bergmann , Borislav Petkov , Andy Lutomirski , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, Michal Simek , linux-kernel@vger.kernel.org, Ross Zwisler , linux-alpha@vger.kernel.org, Rick Edgecombe , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The following commit has been merged into the x86/build branch of tip: Commit-ID: f0d7ee17d57c7a8510518a1e60366d053e2f3ff5 Gitweb: https://git.kernel.org/tip/f0d7ee17d57c7a8510518a1e60366d053e2f3ff5 Author: Kees Cook AuthorDate: Tue, 29 Oct 2019 14:13:38 -07:00 Committer: Borislav Petkov CommitterDate: Mon, 04 Nov 2019 17:55:02 +01:00 x86/vmlinux: Move EXCEPTION_TABLE to RO_DATA segment The exception table was needlessly marked executable. In preparation for execute-only memory, move the table into the RO_DATA segment via the new macro that can be used by any architectures that want to make a similar consolidation. Signed-off-by: Kees Cook Signed-off-by: Borislav Petkov Cc: Andy Lutomirski Cc: Arnd Bergmann Cc: Dave Hansen Cc: Heiko Carstens Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: linux-alpha@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-c6x-dev@linux-c6x.org Cc: linux-ia64@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-s390@vger.kernel.org Cc: Michael Ellerman Cc: Michal Simek Cc: Rick Edgecombe Cc: Ross Zwisler Cc: Segher Boessenkool Cc: Thomas Gleixner Cc: Thomas Lendacky Cc: Will Deacon Cc: x86-ml Cc: Yoshinori Sato Link: https://lkml.kernel.org/r/20191029211351.13243-17-keescook@chromium.org --- arch/x86/kernel/vmlinux.lds.S | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index a1a758e..b06d6e1 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -22,6 +22,7 @@ #endif #define EMITS_PT_NOTE +#define RO_EXCEPTION_TABLE_ALIGN 16 #include #include @@ -145,8 +146,6 @@ SECTIONS #endif } :text = 0x9090 - EXCEPTION_TABLE(16) - /* End of text section, which should occupy whole number of pages */ _etext = .; . = ALIGN(PAGE_SIZE);