Greg Kurz | b90d80a | 2018-01-18 18:11:37 +0100 | [diff] [blame] | 1 | # -*- coding: utf-8 -*- |
Alex Bennée | c24999f | 2018-01-11 11:27:33 +0300 | [diff] [blame] | 2 | # GDB debugging support |
| 3 | # |
| 4 | # Copyright 2017 Linaro Ltd |
| 5 | # |
| 6 | # Author: Alex Bennée <alex.bennee@linaro.org> |
| 7 | # |
Alex Bennée | 390947e | 2019-03-11 16:55:38 +0000 | [diff] [blame] | 8 | # This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 9 | # See the COPYING file in the top-level directory. |
| 10 | # |
| 11 | # SPDX-License-Identifier: GPL-2.0-or-later |
Alex Bennée | c24999f | 2018-01-11 11:27:33 +0300 | [diff] [blame] | 12 | |
| 13 | # 'qemu timers' -- display the current timerlists |
| 14 | |
| 15 | import gdb |
| 16 | |
| 17 | class TimersCommand(gdb.Command): |
| 18 | '''Display the current QEMU timers''' |
| 19 | |
| 20 | def __init__(self): |
| 21 | 'Register the class as a gdb command' |
| 22 | gdb.Command.__init__(self, 'qemu timers', gdb.COMMAND_DATA, |
| 23 | gdb.COMPLETE_NONE) |
| 24 | |
| 25 | def dump_timers(self, timer): |
| 26 | "Follow a timer and recursively dump each one in the list." |
| 27 | # timer should be of type QemuTimer |
| 28 | gdb.write(" timer %s/%s (cb:%s,opq:%s)\n" % ( |
| 29 | timer['expire_time'], |
| 30 | timer['scale'], |
| 31 | timer['cb'], |
| 32 | timer['opaque'])) |
| 33 | |
| 34 | if int(timer['next']) > 0: |
| 35 | self.dump_timers(timer['next']) |
| 36 | |
| 37 | |
| 38 | def process_timerlist(self, tlist, ttype): |
| 39 | gdb.write("Processing %s timers\n" % (ttype)) |
| 40 | gdb.write(" clock %s is enabled:%s, last:%s\n" % ( |
| 41 | tlist['clock']['type'], |
| 42 | tlist['clock']['enabled'], |
| 43 | tlist['clock']['last'])) |
| 44 | if int(tlist['active_timers']) > 0: |
| 45 | self.dump_timers(tlist['active_timers']) |
| 46 | |
| 47 | |
| 48 | def invoke(self, arg, from_tty): |
| 49 | 'Run the command' |
| 50 | main_timers = gdb.parse_and_eval("main_loop_tlg") |
| 51 | |
| 52 | # This will break if QEMUClockType in timer.h is redfined |
| 53 | self.process_timerlist(main_timers['tl'][0], "Realtime") |
| 54 | self.process_timerlist(main_timers['tl'][1], "Virtual") |
| 55 | self.process_timerlist(main_timers['tl'][2], "Host") |
| 56 | self.process_timerlist(main_timers['tl'][3], "Virtual RT") |