| #!/usr/bin/python |
| # -*- coding: utf-8 -*- |
| # GDB debugging support |
| # |
| # Copyright 2017 Linaro Ltd |
| # |
| # Author: Alex Bennée <alex.bennee@linaro.org> |
| # |
| # 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") |
