From patchwork Thu Jan 11 08:27:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Pavel Dovgalyuk X-Patchwork-Id: 124166 Delivered-To: patch@linaro.org Received: by 10.140.22.227 with SMTP id 90csp379472qgn; Thu, 11 Jan 2018 00:45:47 -0800 (PST) X-Google-Smtp-Source: ACJfBouk2IJ94vS4CaPtrHYlk0qBo2UlTx+9ni567gvbGlvEJ2bNDgpCTSanfNbx8PRtHCv9Wfcd X-Received: by 10.37.209.132 with SMTP id i126mr16368917ybg.29.1515660347034; Thu, 11 Jan 2018 00:45:47 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1515660347; cv=none; d=google.com; s=arc-20160816; b=ZpgrsNxkPSCxFT4cYegdfRVH8qi8CDcLQSedLVlv8Un3sqFIFd2xFRKbDHnued41c0 Cc8eLruzQiMwKY6vGUUpMICS/RZ3NKT1jprWjFlXbzeFz8xiqDg7KDIRQ56g/ugyQphW qXGfN6T5ov6PK4XrEwDSn/PRHcFz/95c0r8iNssT8F7GUVKAc0iCPVdFSWzmOMwPMUQ/ FZdEmyF3akFy6a57+W6PaH5uUyLNN74L9QRyomr4kPagolj47LSbiXzZLbTM5nM/eQ86 wLczPttjaSnBck5NNqs67tHNSgqT+T797lfsHzvMXmrhL30Z4UU8RC0qx3YaqnTjF/G/ hAFQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:cc:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:subject :content-transfer-encoding:mime-version:user-agent:references :in-reply-to:message-id:date:to:from:arc-authentication-results; bh=zAUkMS9H/iqNw6WMrhsAsWzBLobH9rhIKM7nbLWih4U=; b=FMZGbJQdec61x00I8gR4FATzZ9pnbqjx6YpvlWNmQka5WXD0FC7mrwboN99kHMH1e4 y+QdSsjIykQmkiPKTyqQy/LGZGQW0XWs4ktDl1Py6hkIYKTUAKzgARU+P+cUMcM8+uB8 n5aAPP7lqgW9DkFVXdX8yVLmCzYPFx8Dw93nhBxQP+RCEkHRmqjfafxh1uOuwZIDFTKV Ju+jgcvFF9+orv9LmwMjVvjaVY7ctdV04VqMyd1dl0iYa+RFe0figrm7HlzIdIq+ko+S LLm8D7Sxi/m+inbAd/pbfqh3M9eTSI3lKH7ecWesHubMFbgBUpGNqhsGZIvhmSJz++0j Qv/w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) smtp.mailfrom=qemu-devel-bounces+patch=linaro.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [2001:4830:134:3::11]) by mx.google.com with ESMTPS id o12si776395ybk.347.2018.01.11.00.45.46 for (version=TLS1 cipher=AES128-SHA bits=128/128); Thu, 11 Jan 2018 00:45:47 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) client-ip=2001:4830:134:3::11; Authentication-Results: mx.google.com; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) smtp.mailfrom=qemu-devel-bounces+patch=linaro.org@nongnu.org Received: from localhost ([::1]:53147 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eZYUc-0007se-H8 for patch@linaro.org; Thu, 11 Jan 2018 03:45:46 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47635) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eZYCz-0001ZR-JC for qemu-devel@nongnu.org; Thu, 11 Jan 2018 03:27:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eZYCy-0002ti-J0 for qemu-devel@nongnu.org; Thu, 11 Jan 2018 03:27:33 -0500 Received: from mail.ispras.ru ([83.149.199.45]:42060) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eZYCy-0002sm-7T for qemu-devel@nongnu.org; Thu, 11 Jan 2018 03:27:32 -0500 Received: from [127.0.1.1] (unknown [85.142.117.226]) by mail.ispras.ru (Postfix) with ESMTPSA id 58D7654006E; Thu, 11 Jan 2018 11:27:31 +0300 (MSK) From: Pavel Dovgalyuk To: qemu-devel@nongnu.org Date: Thu, 11 Jan 2018 11:27:33 +0300 Message-ID: <20180111082733.27295.51978.stgit@pasha-VirtualBox> In-Reply-To: <20180111082452.27295.85707.stgit@pasha-VirtualBox> References: <20180111082452.27295.85707.stgit@pasha-VirtualBox> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 83.149.199.45 Subject: [Qemu-devel] [RFC PATCH v3 28/30] scripts/qemu-gdb/timers.py: new helper to dump timer state X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, peter.maydell@linaro.org, pavel.dovgaluk@ispras.ru, mst@redhat.com, jasowang@redhat.com, quintela@redhat.com, zuban32s@gmail.com, maria.klimushenkova@ispras.ru, dovgaluk@ispras.ru, kraxel@redhat.com, boost.lists@gmail.com, pbonzini@redhat.com, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" From: Alex Bennée This introduces the qemu-gdb command "qemu timers" which will dump the state of the main timers in the system. Signed-off-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé --- scripts/qemu-gdb.py | 3 ++- scripts/qemugdb/timers.py | 54 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+), 1 deletion(-) create mode 100644 scripts/qemugdb/timers.py diff --git a/scripts/qemu-gdb.py b/scripts/qemu-gdb.py index d58213e..690827e 100644 --- a/scripts/qemu-gdb.py +++ b/scripts/qemu-gdb.py @@ -26,7 +26,7 @@ import os, sys sys.path.append(os.path.dirname(__file__)) -from qemugdb import aio, mtree, coroutine, tcg +from qemugdb import aio, mtree, coroutine, tcg, timers class QemuCommand(gdb.Command): '''Prefix for QEMU debug support commands''' @@ -39,6 +39,7 @@ coroutine.CoroutineCommand() mtree.MtreeCommand() aio.HandlersCommand() tcg.TCGLockStatusCommand() +timers.TimersCommand() coroutine.CoroutineSPFunction() coroutine.CoroutinePCFunction() diff --git a/scripts/qemugdb/timers.py b/scripts/qemugdb/timers.py new file mode 100644 index 0000000..be71a00 --- /dev/null +++ b/scripts/qemugdb/timers.py @@ -0,0 +1,54 @@ +#!/usr/bin/python +# GDB debugging support +# +# Copyright 2017 Linaro Ltd +# +# Author: Alex Bennée +# +# This work is licensed under the terms of the GNU GPL, version 2. See +# the COPYING file in the top-level directory. + +# 'qemu timers' -- display the current timerlists + +import gdb + +class TimersCommand(gdb.Command): + '''Display the current QEMU timers''' + + def __init__(self): + 'Register the class as a gdb command' + gdb.Command.__init__(self, 'qemu timers', gdb.COMMAND_DATA, + gdb.COMPLETE_NONE) + + def dump_timers(self, timer): + "Follow a timer and recursively dump each one in the list." + # timer should be of type QemuTimer + gdb.write(" timer %s/%s (cb:%s,opq:%s)\n" % ( + timer['expire_time'], + timer['scale'], + timer['cb'], + timer['opaque'])) + + if int(timer['next']) > 0: + self.dump_timers(timer['next']) + + + def process_timerlist(self, tlist, ttype): + gdb.write("Processing %s timers\n" % (ttype)) + gdb.write(" clock %s is enabled:%s, last:%s\n" % ( + tlist['clock']['type'], + tlist['clock']['enabled'], + tlist['clock']['last'])) + if int(tlist['active_timers']) > 0: + self.dump_timers(tlist['active_timers']) + + + def invoke(self, arg, from_tty): + 'Run the command' + main_timers = gdb.parse_and_eval("main_loop_tlg") + + # This will break if QEMUClockType in timer.h is redfined + self.process_timerlist(main_timers['tl'][0], "Realtime") + self.process_timerlist(main_timers['tl'][1], "Virtual") + self.process_timerlist(main_timers['tl'][2], "Host") + self.process_timerlist(main_timers['tl'][3], "Virtual RT")