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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS 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 E1F0EC00449 for ; Mon, 1 Oct 2018 21:05:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B310A20666 for ; Mon, 1 Oct 2018 21:05:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B310A20666 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=canonical.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726488AbeJBDph (ORCPT ); Mon, 1 Oct 2018 23:45:37 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:50961 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725936AbeJBDph (ORCPT ); Mon, 1 Oct 2018 23:45:37 -0400 Received: from static-50-53-48-205.bvtn.or.frontiernet.net ([50.53.48.205] helo=[192.168.192.153]) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.76) (envelope-from ) id 1g75O7-0007J3-DV; Mon, 01 Oct 2018 21:05:55 +0000 Subject: Re: [PATCH security-next v3 02/29] vmlinux.lds.h: Avoid copy/paste of security_init section To: Kees Cook , James Morris Cc: Arnd Bergmann , linux-arch@vger.kernel.org, Casey Schaufler , Tetsuo Handa , Paul Moore , Stephen Smalley , "Schaufler, Casey" , LSM , Jonathan Corbet , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org References: <20180925001832.18322-1-keescook@chromium.org> <20180925001832.18322-3-keescook@chromium.org> From: John Johansen Openpgp: preference=signencrypt Autocrypt: addr=john.johansen@canonical.com; 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Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20180925001832.18322-3-keescook@chromium.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/24/2018 05:18 PM, Kees Cook wrote: > Avoid copy/paste by defining SECURITY_INIT in terms of SECURITY_INITCALL. > > Cc: Arnd Bergmann > Cc: linux-arch@vger.kernel.org > Signed-off-by: Kees Cook Reviewed-by: John Johansen > --- > include/asm-generic/vmlinux.lds.h | 13 ++++++------- > 1 file changed, 6 insertions(+), 7 deletions(-) > > diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h > index 7b75ff6e2fce..934a45395547 100644 > --- a/include/asm-generic/vmlinux.lds.h > +++ b/include/asm-generic/vmlinux.lds.h > @@ -473,13 +473,6 @@ > #define RODATA RO_DATA_SECTION(4096) > #define RO_DATA(align) RO_DATA_SECTION(align) > > -#define SECURITY_INIT \ > - .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ > - __security_initcall_start = .; \ > - KEEP(*(.security_initcall.init)) \ > - __security_initcall_end = .; \ > - } > - > /* > * .text section. Map to function alignment to avoid address changes > * during second ld run in second ld pass when generating System.map > @@ -798,6 +791,12 @@ > KEEP(*(.security_initcall.init)) \ > __security_initcall_end = .; > > +/* Older linker script style for security init. */ > +#define SECURITY_INIT \ > + .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ > + SECURITY_INITCALL \ > + } > + > #ifdef CONFIG_BLK_DEV_INITRD > #define INIT_RAM_FS \ > . = ALIGN(4); \ >