From patchwork Sat Feb 8 07:50:36 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andi Kleen X-Patchwork-Id: 3609201 Return-Path: X-Original-To: patchwork-linux-kbuild@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 606E09F344 for ; Sat, 8 Feb 2014 07:52:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9814020181 for ; Sat, 8 Feb 2014 07:52:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A5C252017E for ; Sat, 8 Feb 2014 07:52:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751424AbaBHHvn (ORCPT ); Sat, 8 Feb 2014 02:51:43 -0500 Received: from mga09.intel.com ([134.134.136.24]:13482 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751312AbaBHHv2 (ORCPT ); Sat, 8 Feb 2014 02:51:28 -0500 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP; 07 Feb 2014 23:47:13 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.95,805,1384329600"; d="scan'208";a="451781100" Received: from laut.jf.intel.com (HELO localhost) ([10.23.232.94]) by orsmga001.jf.intel.com with ESMTP; 07 Feb 2014 23:51:24 -0800 Received: by localhost (Postfix, from userid 1000) id A9B75124B09; Sat, 8 Feb 2014 08:50:46 +0100 (CET) From: Andi Kleen To: mmarek@suse.cz Cc: linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, Andi Kleen Subject: [PATCH 2/6] kbuild: Put kallsyms into own section Date: Sat, 8 Feb 2014 08:50:36 +0100 Message-Id: <1391845840-28514-2-git-send-email-ak@linux.intel.com> X-Mailer: git-send-email 1.8.5.2 In-Reply-To: <1391845840-28514-1-git-send-email-ak@linux.intel.com> References: <1391845840-28514-1-git-send-email-ak@linux.intel.com> Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org X-Spam-Status: No, score=-7.4 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 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