From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=66.187.233.73; helo=mx1.redhat.com; envelope-from=lersek@redhat.com; receiver=edk2-devel@lists.01.org Received: from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id BF42E2263DD6C for ; Mon, 16 Apr 2018 09:13:52 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 75AD84072446; Mon, 16 Apr 2018 16:13:51 +0000 (UTC) Received: from lacos-laptop-7.usersys.redhat.com (ovpn-120-213.rdu2.redhat.com [10.10.120.213]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4D8FB7C36; Mon, 16 Apr 2018 16:13:50 +0000 (UTC) To: Johannes Swoboda Cc: edk2-devel@lists.01.org, clemens.hlauschek@inso.tuwien.ac.at, Michael Kinney References: From: Laszlo Ersek Message-ID: <12fe2332-c864-60e1-4f12-280e9939449f@redhat.com> Date: Mon, 16 Apr 2018 18:13:49 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Mon, 16 Apr 2018 16:13:51 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Mon, 16 Apr 2018 16:13:51 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'lersek@redhat.com' RCPT:'' Subject: Re: Source code debugging of OVMF X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Apr 2018 16:13:53 -0000 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Hi Johannes, On 04/16/18 13:09, Johannes Swoboda wrote: > How are you ovmf developer debugging it? In general I add DEBUG statements, grep the tree for protocol / PPI GUIDs, and use an editor with good ctags support. Here's another thread that you might find useful: http://edk2-devel.narkive.com/6BRVus92/qestion-about-how-to-debug-ovmf-on-qemu Occasionally I do use gdb with QEMU, but the solution I use is not suitable for debugging modules in the SEC and PEI phases, only in DXE. I have some terribly rough patches in my local tree that are based on . I don't recall having any luck with SOURCE_DEBUG_ENABLE and the UDK debugger , but admittedly it's been a while (= years?) since I last tried to connect debugger VM with debugge VM over a virtual serial port. Others have more recently confirmed it works for them. I think Mike uses it successfully, from a Windows debugger machine maybe? Thanks, Laszlo