From patchwork Fri Feb 14 21:17:05 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andi Kleen X-Patchwork-Id: 3654221 Return-Path: X-Original-To: patchwork-linux-kbuild@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 987F4BF13A for ; Fri, 14 Feb 2014 21:19:21 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C9BE22021B for ; Fri, 14 Feb 2014 21:19:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 00B3F20212 for ; Fri, 14 Feb 2014 21:19:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752970AbaBNVTA (ORCPT ); Fri, 14 Feb 2014 16:19:00 -0500 Received: from mga02.intel.com ([134.134.136.20]:10900 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752811AbaBNVSB (ORCPT ); Fri, 14 Feb 2014 16:18:01 -0500 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 14 Feb 2014 13:18:00 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.95,847,1384329600"; d="scan'208";a="455750357" Received: from laut.jf.intel.com (HELO localhost) ([10.23.232.94]) by orsmga001.jf.intel.com with ESMTP; 14 Feb 2014 13:17:53 -0800 Received: by localhost (Postfix, from userid 1000) id C9485124AC1; Fri, 14 Feb 2014 22:17:14 +0100 (CET) From: Andi Kleen To: linux-kernel@vger.kernel.org Cc: x86@kernel.org, linux-kbuild@vger.kernel.org, mmarek@suse.cz, Andi Kleen Subject: [PATCH 2/6] kbuild: Put kallsyms into own section Date: Fri, 14 Feb 2014 22:17:05 +0100 Message-Id: <1392412629-25666-3-git-send-email-andi@firstfloor.org> X-Mailer: git-send-email 1.8.5.2 In-Reply-To: <1392412629-25666-1-git-send-email-andi@firstfloor.org> References: <1392412629-25666-1-git-send-email-andi@firstfloor.org> Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Andi Kleen Put the kallsyms information into an own .kallsyms section. This makes it easier to patch the kallsyms inside the executable. Otherwise it shouldn't change anything. Signed-off-by: Andi Kleen --- include/asm-generic/vmlinux.lds.h | 4 ++++ scripts/kallsyms.c | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index bc2121f..6214f18 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -280,6 +280,10 @@ \ TRACEDATA \ \ + .kallsyms : AT(ADDR(.kallsyms) - LOAD_OFFSET) { \ + *(.kallsyms) \ + } \ + \ /* Kernel symbol table: Normal symbols */ \ __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab) = .; \ diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c index 56f5986..ceef756 100644 --- a/scripts/kallsyms.c +++ b/scripts/kallsyms.c @@ -314,7 +314,7 @@ static void write_src(void) printf("#define ALGN .align 4\n"); printf("#endif\n"); - printf("\t.section .rodata, \"a\"\n"); + printf("\t.section .kallsyms, \"a\"\n"); /* Provide proper symbols relocatability by their '_text' * relativeness. The symbol names cannot be used to construct