| Message ID | 20170403124524.10824-3-alex.bennee@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | MTTCG and record/replay fixes for rc3 | expand |
On 04/03/2017 09:45 AM, Alex Bennée wrote: > 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 <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> > --- > 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 <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") >
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 <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")
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 <alex.bennee@linaro.org> --- scripts/qemu-gdb.py | 3 ++- scripts/qemugdb/timers.py | 54 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+), 1 deletion(-) create mode 100644 scripts/qemugdb/timers.py -- 2.11.0