From patchwork Fri Feb 14 21:21:31 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andi Kleen X-Patchwork-Id: 3654591 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 273C69F334 for ; Fri, 14 Feb 2014 21:28:34 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 594B5201DE for ; Fri, 14 Feb 2014 21:28:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 75F0A201BF for ; Fri, 14 Feb 2014 21:28:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753212AbaBNVW3 (ORCPT ); Fri, 14 Feb 2014 16:22:29 -0500 Received: from mga11.intel.com ([192.55.52.93]:38604 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753183AbaBNVW2 (ORCPT ); Fri, 14 Feb 2014 16:22:28 -0500 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 14 Feb 2014 13:22:27 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.95,847,1384329600"; d="scan'208";a="481803160" Received: from laut.jf.intel.com (HELO localhost) ([10.23.232.94]) by fmsmga002.fm.intel.com with ESMTP; 14 Feb 2014 13:22:26 -0800 Received: by localhost (Postfix, from userid 1000) id 6A07C124AC1; Fri, 14 Feb 2014 22:21:47 +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 07/19] lto: Don't let LATENCYTOP and LOCKDEP select KALLSYMS_ALL Date: Fri, 14 Feb 2014 22:21:31 +0100 Message-Id: <1392412903-25733-8-git-send-email-andi@firstfloor.org> X-Mailer: git-send-email 1.8.5.2 In-Reply-To: <1392412903-25733-1-git-send-email-andi@firstfloor.org> References: <1392412903-25733-1-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 KALLSYMS_ALL enables including data variables into KALLSYMS. With plain KALLSYMS only functions are included. LATENCYTOP and LOCKDEP select KALLSYMS_ALL in addition to KALLSYMS. It's unclear what they actually need _ALL for; they should only need function backtraces and afaik never touch variables. LTO currently does not support KALLSYMS_ALL, which prevents LATENCYTOP and LOCKDEP from working and gives Kconfig errors. Disable the requirement for KALLSYMS_ALL for them, just use KALLSYMS. Signed-off-by: Andi Kleen --- lib/Kconfig.debug | 2 -- 1 file changed, 2 deletions(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index a48abea..5cbf0c5 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -928,7 +928,6 @@ config LOCKDEP select STACKTRACE select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE && !ARC select KALLSYMS - select KALLSYMS_ALL config LOCK_STAT bool "Lock usage statistics" @@ -1396,7 +1395,6 @@ config LATENCYTOP depends on PROC_FS select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC select KALLSYMS - select KALLSYMS_ALL select STACKTRACE select SCHEDSTATS select SCHED_DEBUG