From owner-freebsd-doc@FreeBSD.ORG Mon Aug 30 13:10:31 2010 Return-Path: Delivered-To: doc@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 90B8D10656A9; Mon, 30 Aug 2010 13:10:31 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id 648798FC19; Mon, 30 Aug 2010 13:10:31 +0000 (UTC) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id 0712C46B29; Mon, 30 Aug 2010 09:10:31 -0400 (EDT) Received: from jhbbsd.localnet (smtp.hudson-trading.com [209.249.190.9]) by bigwig.baldwin.cx (Postfix) with ESMTPSA id F01DA8A03C; Mon, 30 Aug 2010 09:10:29 -0400 (EDT) From: John Baldwin To: freebsd-hackers@freebsd.org, Alexander Fiveg Date: Mon, 30 Aug 2010 08:16:11 -0400 User-Agent: KMail/1.13.5 (FreeBSD/7.3-CBSD-20100819; KDE/4.4.5; amd64; ; ) References: <20100827201140.GA2812@debmaster-laptop> In-Reply-To: <20100827201140.GA2812@debmaster-laptop> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <201008300816.11278.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Mon, 30 Aug 2010 09:10:29 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.95.1 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.6 required=4.2 tests=AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: doc@freebsd.org Subject: Re: Debugging Loadable Modules Using GDB X-BeenThere: freebsd-doc@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Documentation project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Aug 2010 13:10:31 -0000 On Friday, August 27, 2010 4:11:41 pm Alexander Fiveg wrote: > Hi, > from "FreeBSD Developers' Handbook, 10.7 Debugging Loadable Modules Using > GDB": > "... > (kgdb) add-symbol-file /sys/modules/linux/linux.ko 0xc0ae22d0 > ... > " > Actually I couldn't debug my modules using .ko-file. Moreover, I've find out that .ko files do not contain sections with debugging info. With .kld-file debugging works out. Do I something incorrectly or the info in the Developers Book is outdated? With newer versions of kgdb you shouldn't need to manually invoke 'add-symbol- file'. Kernel modules are treated as shared libraries and should automatically be loaded. Try using 'info sharedlibrary' to see the list of kernel modules and if symbols for them are loaded already. -- John Baldwin