From patchwork Sun Aug 11 00:55:31 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andi Kleen X-Patchwork-Id: 2842555 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 41DFFBF546 for ; Sun, 11 Aug 2013 00:56:24 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 79F81201EC for ; Sun, 11 Aug 2013 00:56:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9FDC1201FA for ; Sun, 11 Aug 2013 00:56:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751739Ab3HKA4J (ORCPT ); Sat, 10 Aug 2013 20:56:09 -0400 Received: from mga03.intel.com ([143.182.124.21]:12251 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751674Ab3HKA4H (ORCPT ); Sat, 10 Aug 2013 20:56:07 -0400 Received: from azsmga001.ch.intel.com ([10.2.17.19]) by azsmga101.ch.intel.com with ESMTP; 10 Aug 2013 17:55:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.89,853,1367996400"; d="scan'208";a="344542654" Received: from tassilo.jf.intel.com (HELO tassilo.localdomain) ([10.7.201.78]) by azsmga001.ch.intel.com with ESMTP; 10 Aug 2013 17:55:51 -0700 Received: by tassilo.localdomain (Postfix, from userid 1000) id 5305430128B; Sat, 10 Aug 2013 17:55:51 -0700 (PDT) From: Andi Kleen To: linux-kernel@vger.kernel.org Cc: mmarek@suse.cz, linux-kbuild@vger.kernel.org, Joe Mario , Andi Kleen Subject: [PATCH 1/3] kbuild: Increase kallsyms max symbol length Date: Sat, 10 Aug 2013 17:55:31 -0700 Message-Id: <1376182533-17530-1-git-send-email-andi@firstfloor.org> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org X-Spam-Status: No, score=-6.9 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: Joe Mario [AK: This seems like a ticking time bomb even without LTO, so should be merged now. It causes very weird problems. Thanks to Joe for tracking them down.] With the added postfixes that LTO adds for local symbols, the longest name in the kernel overflows the namebuf[KSYM_NAME_LEN] array by two bytes. That name is: __pci_fixup_resumePCI_VENDOR_ID_SERVERWORKSPCI_DEVICE_ID_SERVERWORKS_HT1000SBquirk_disable_broadcom_boot_interrupt.1488004.672802 Double the max symbol name length. Signed-off-by: Andi Kleen --- include/linux/kallsyms.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h index 6883e19..711a50f 100644 --- a/include/linux/kallsyms.h +++ b/include/linux/kallsyms.h @@ -9,7 +9,7 @@ #include #include -#define KSYM_NAME_LEN 128 +#define KSYM_NAME_LEN 256 #define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \ 2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1)