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=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 4C2D6C282CE for ; Wed, 10 Apr 2019 15:51:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 277E521741 for ; Wed, 10 Apr 2019 15:51:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387527AbfDJPvO (ORCPT ); Wed, 10 Apr 2019 11:51:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37556 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387491AbfDJPvK (ORCPT ); Wed, 10 Apr 2019 11:51:10 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 74EC430B32F0; Wed, 10 Apr 2019 15:51:10 +0000 (UTC) Received: from jlaw-desktop.bos.redhat.com (dhcp-17-208.bos.redhat.com [10.18.17.208]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1F33B110A180; Wed, 10 Apr 2019 15:51:09 +0000 (UTC) From: Joe Lawrence To: linux-kernel@vger.kernel.org, live-patching@vger.kernel.org, linux-kbuild@vger.kernel.org Cc: Jessica Yu , Jiri Kosina , Joao Moreira , Joe Lawrence , Josh Poimboeuf , Konstantin Khlebnikov , Masahiro Yamada , Michael Matz , Miroslav Benes , Nicolai Stange , Petr Mladek Subject: [PATCH v3 4/9] livepatch: Add klp-convert annotation helpers Date: Wed, 10 Apr 2019 11:50:53 -0400 Message-Id: <20190410155058.9437-5-joe.lawrence@redhat.com> In-Reply-To: <20190410155058.9437-1-joe.lawrence@redhat.com> References: <20190410155058.9437-1-joe.lawrence@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.43]); Wed, 10 Apr 2019 15:51:10 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Josh Poimboeuf Define macros KLP_MODULE_RELOC and KLP_SYMPOS in include/linux/livepatch.h to improve user-friendliness of the livepatch annotation process. Signed-off-by: Josh Poimboeuf Signed-off-by: Joao Moreira Signed-off-by: Joe Lawrence --- include/linux/livepatch.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/linux/livepatch.h b/include/linux/livepatch.h index 16b48e8b29a2..947cfc2d1980 100644 --- a/include/linux/livepatch.h +++ b/include/linux/livepatch.h @@ -236,6 +236,18 @@ void *klp_shadow_get_or_alloc(void *obj, unsigned long id, void klp_shadow_free(void *obj, unsigned long id, klp_shadow_dtor_t dtor); void klp_shadow_free_all(unsigned long id, klp_shadow_dtor_t dtor); +/* Used to annotate symbol relocations in livepatches */ +#define KLP_MODULE_RELOC(obj) \ + struct klp_module_reloc \ + __attribute__((__section__(".klp.module_relocs." #obj))) \ + __attribute__((aligned (4))) + +#define KLP_SYMPOS(symbol, pos) \ + { \ + .sym = &symbol, \ + .sympos = pos, \ + }, + #else /* !CONFIG_LIVEPATCH */ static inline int klp_module_coming(struct module *mod) { return 0; } -- 2.20.1