From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50701) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dB0J8-0001iy-Je for qemu-devel@nongnu.org; Wed, 17 May 2017 10:52:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dB0J6-0004ew-HB for qemu-devel@nongnu.org; Wed, 17 May 2017 10:52:10 -0400 Received: from mail-wm0-x22e.google.com ([2a00:1450:400c:c09::22e]:37469) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dB0J6-0004ec-B9 for qemu-devel@nongnu.org; Wed, 17 May 2017 10:52:08 -0400 Received: by mail-wm0-x22e.google.com with SMTP id d127so19125370wmf.0 for ; Wed, 17 May 2017 07:52:08 -0700 (PDT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= Date: Wed, 17 May 2017 15:52:55 +0100 Message-Id: <20170517145259.28979-3-alex.bennee@linaro.org> In-Reply-To: <20170517145259.28979-1-alex.bennee@linaro.org> References: <20170517145259.28979-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v2 2/6] scripts/qemu-gdb/timers.py: new helper to dump timer state List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: pbonzini@redhat.com, stefanha@redhat.com Cc: cota@braap.org, qemu-devel@nongnu.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= 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 b3f8e04f77..3e7adb87dc 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 +from qemugdb import aio, mtree, coroutine, timers class QemuCommand(gdb.Command): '''Prefix for QEMU debug support commands''' @@ -38,6 +38,7 @@ QemuCommand() coroutine.CoroutineCommand() mtree.MtreeCommand() aio.HandlersCommand() +timers.TimersCommand() coroutine.CoroutineSPFunction() coroutine.CoroutinePCFunction() diff --git a/scripts/qemugdb/timers.py b/scripts/qemugdb/timers.py new file mode 100644 index 0000000000..be71a001e3 --- /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") -- 2.11.0