From patchwork Tue Oct 31 11:09:01 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Pavel Dovgalyuk X-Patchwork-Id: 117577 Delivered-To: patch@linaro.org Received: by 10.80.245.45 with SMTP id t42csp3819783edm; Tue, 31 Oct 2017 04:16:13 -0700 (PDT) X-Google-Smtp-Source: ABhQp+SEvCl0k7vmvGKQCZc2FMbApsrvJ9hPmb05Be1Z5k+fnjDPTStr1lAuG8T/q9VsrzBT5q0Z X-Received: by 10.129.108.3 with SMTP id h3mr902183ywc.327.1509448573635; Tue, 31 Oct 2017 04:16:13 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1509448573; cv=none; d=google.com; s=arc-20160816; b=njJ1DgNLZcofdedN7O72xxYMIc2tphRmEb09/QRDeSvNgXYAQUBaoL+Mjt9gtTyxhl Z3cYu80VtN9f5VV4CcyTlP0BtpSPs8AGbdjxL5cdvgCG/ik0ftI25Yt/4+nDTGCCW2jt O4TWVG9TrV/f9DESY94cIdscifiVFBrEEdLaTCFrFKAniiH4RUOkUXarOXHydbw8okJD cc1NCwvi9mRMSWOJy9xOsVqcaTDXZ166f994yKkC5HbDn2YHD+w7IC+MnRnFOc2W9GJ0 mnB7jg+kORbLcM4LN/QmEO0njg9HHpRSfswUPWsvwYzyKMMXV8/YXeKlMWHAWPLTu7hC aVzg== 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=0mNrYB/7CQ13/nCWNidSOnK31xeLWYbx0BprAi0IOhM=; b=O3cuCWlBOMxx0+VXKIZWfa6/0ZkMQzjLzM8Pi6Nqt02ISiL8D2QpRzPPgqHqIf/hMc fdL26Cbc6h3tm4tLmITdCOcuDUE+cFnh7O5CxtqHkNTE9RJLpO15OrH5Zid9nCuvfDl9 xdp+IQWKsJ6GQZWEgt9N0R7HGvAxVSxW0Hb4/X4wcCnAG6xD4Adox6kyNFfIKEq4dkcr Deh2BkP5DEl7+576r8FomxuoowWJSlN3UZr+ESB8+v/tK7W5YZP4ljHelMQ+0pKVuEWz Nj9SU8lqzp+GjKGfplvf34kS/YJ34nZAq9PeF5wL2WCzSFE8NTcgHI72ccqSysR+vXSR TUhQ== 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 i13si350106ywl.685.2017.10.31.04.16.13 for (version=TLS1 cipher=AES128-SHA bits=128/128); Tue, 31 Oct 2017 04:16:13 -0700 (PDT) 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]:44825 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e9UWj-0003N1-1I for patch@linaro.org; Tue, 31 Oct 2017 07:16:13 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40751) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e9UPn-0005jB-2e for qemu-devel@nongnu.org; Tue, 31 Oct 2017 07:09:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e9UPl-00084b-Sa for qemu-devel@nongnu.org; Tue, 31 Oct 2017 07:09:03 -0400 Received: from mail.ispras.ru ([83.149.199.45]:42500) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e9UPl-000846-Jt for qemu-devel@nongnu.org; Tue, 31 Oct 2017 07:09:01 -0400 Received: from [127.0.1.1] (unknown [85.142.117.226]) by mail.ispras.ru (Postfix) with ESMTPSA id F0F1354006A; Tue, 31 Oct 2017 14:09:00 +0300 (MSK) From: Pavel Dovgalyuk To: qemu-devel@nongnu.org Date: Tue, 31 Oct 2017 14:09:01 +0300 Message-ID: <20171031110901.5836.26880.stgit@pasha-VirtualBox> In-Reply-To: <20171031110641.5836.43266.stgit@pasha-VirtualBox> References: <20171031110641.5836.43266.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 26/26] 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: dovgaluk@ispras.ru 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")