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[Qemu-devel] [RFC PATCH 26/26] scripts/qemu-gdb/timers.py: new helper to
From: |
Pavel Dovgalyuk |
Subject: |
[Qemu-devel] [RFC PATCH 26/26] scripts/qemu-gdb/timers.py: new helper to dump timer state |
Date: |
Tue, 31 Oct 2017 14:27:23 +0300 |
User-agent: |
StGit/0.17.1-dirty |
From: Alex Bennée <address@hidden>
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 <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
---
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 <address@hidden>
+#
+# 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")
- [Qemu-devel] [RFC PATCH 16/26] replay: make locking visible outside replay code, (continued)
- [Qemu-devel] [RFC PATCH 16/26] replay: make locking visible outside replay code, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 17/26] replay: push replay_mutex_lock up the call tree, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 18/26] cpu-exec: don't overwrite exception_index, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 19/26] cpu-exec: reset exit flag before calling cpu_exec_nocache, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 20/26] replay: don't destroy mutex at exit, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 21/26] replay: check return values of fwrite, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 22/26] scripts/qemu-gdb: add simple tcg lock status helper, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 23/26] util/qemu-thread-*: add qemu_lock, locked and unlock trace events, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 24/26] scripts/analyse-locks-simpletrace.py: script to analyse lock times, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 25/26] scripts/replay-dump.py: replay log dumper, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 26/26] scripts/qemu-gdb/timers.py: new helper to dump timer state,
Pavel Dovgalyuk <=
- Re: [Qemu-devel] [RFC PATCH 00/26] replay additions, no-reply, 2017/10/31
- Re: [Qemu-devel] [RFC PATCH 00/26] replay additions, no-reply, 2017/10/31