"""
LLDB AppKit formatters
part of The LLVM Compiler Infrastructure
This file is distributed under the University of Illinois Open Source
License. See LICENSE.TXT for details.
"""
import lldb
import ctypes
import lldb.runtime.objc.objc_runtime
import lldb.formatters.metrics
import struct
import time
import datetime
import CFString
import lldb.formatters.Logger
statistics = lldb.formatters.metrics.Metrics()
statistics.add_metric('invalid_isa')
statistics.add_metric('invalid_pointer')
statistics.add_metric('unknown_class')
statistics.add_metric('code_notrun')
python_epoch = time.gmtime(0).tm_year
osx_epoch = datetime.date(2001,1,1).timetuple()
def mkgmtime(t):
logger = lldb.formatters.Logger.Logger()
return time.mktime(t)-time.timezone
osx_epoch = mkgmtime(osx_epoch)
def osx_to_python_time(osx):
logger = lldb.formatters.Logger.Logger()
if python_epoch <= 2001:
return osx + osx_epoch
else:
return osx - osx_epoch
def xcode_format_time(X):
logger = lldb.formatters.Logger.Logger()
return time.strftime('%Y-%m-%d %H:%M:%S %Z',X)
def xcode_format_count(X):
logger = lldb.formatters.Logger.Logger()
return xcode_format_time(time.localtime(X))
class NSTaggedDate_SummaryProvider:
def adjust_for_architecture(self):
pass
def __init__(self, valobj, info_bits, data, params):
logger = lldb.formatters.Logger.Logger()
self.valobj = valobj;
self.sys_params = params
self.update();
self.data = ((data << 8) | (info_bits << 4))
def update(self):
logger = lldb.formatters.Logger.Logger()
self.adjust_for_architecture();
def value(self):
logger = lldb.formatters.Logger.Logger()
value_double = struct.unpack('d', struct.pack('Q', self.data))[0]
if value_double == -63114076800.0:
return '0001-12-30 00:00:00 +0000'
return xcode_format_count(osx_to_python_time(value_double))
class NSUntaggedDate_SummaryProvider:
def adjust_for_architecture(self):
pass
def __init__(self, valobj, params):
logger = lldb.formatters.Logger.Logger()
self.valobj = valobj;
self.sys_params = params
if not (self.sys_params.types_cache.double):
self.sys_params.types_cache.double = self.valobj.GetType().GetBasicType(lldb.eBasicTypeDouble)
self.update()
def update(self):
logger = lldb.formatters.Logger.Logger()
self.adjust_for_architecture();
def offset(self):
logger = lldb.formatters.Logger.Logger()
return self.sys_params.pointer_size
def value(self):
logger = lldb.formatters.Logger.Logger()
value = self.valobj.CreateChildAtOffset("value",
self.offset(),
self.sys_params.types_cache.double)
value_double = struct.unpack('d', struct.pack('Q', value.GetData().uint64[0]))[0]
if value_double == -63114076800.0:
return '0001-12-30 00:00:00 +0000'
return xcode_format_count(osx_to_python_time(value_double))
class NSCalendarDate_SummaryProvider:
def adjust_for_architecture(self):
pass
def __init__(self, valobj, params):
logger = lldb.formatters.Logger.Logger()
self.valobj = valobj;
self.sys_params = params
if not (self.sys_params.types_cache.double):
self.sys_params.types_cache.double = self.valobj.GetType().GetBasicType(lldb.eBasicTypeDouble)
self.update()
def update(self):
logger = lldb.formatters.Logger.Logger()
self.adjust_for_architecture();
def offset(self):
logger = lldb.formatters.Logger.Logger()
return 2*self.sys_params.pointer_size
def value(self):
logger = lldb.formatters.Logger.Logger()
value = self.valobj.CreateChildAtOffset("value",
self.offset(),
self.sys_params.types_cache.double)
value_double = struct.unpack('d', struct.pack('Q', value.GetData().uint64[0]))[0]
return xcode_format_count(osx_to_python_time(value_double))
class NSTimeZoneClass_SummaryProvider:
def adjust_for_architecture(self):
pass
def __init__(self, valobj, params):
logger = lldb.formatters.Logger.Logger()
self.valobj = valobj;
self.sys_params = params
if not (self.sys_params.types_cache.voidptr):
self.sys_params.types_cache.voidptr = self.valobj.GetType().GetBasicType(lldb.eBasicTypeVoid).GetPointerType()
self.update()
def update(self):
logger = lldb.formatters.Logger.Logger()
self.adjust_for_architecture();
def offset(self):
logger = lldb.formatters.Logger.Logger()
return self.sys_params.pointer_size
def timezone(self):
logger = lldb.formatters.Logger.Logger()
tz_string = self.valobj.CreateChildAtOffset("tz_name",
self.offset(),
self.sys_params.types_cache.voidptr)
return CFString.CFString_SummaryProvider(tz_string,None)
class NSUnknownDate_SummaryProvider:
def adjust_for_architecture(self):
pass
def __init__(self, valobj):
logger = lldb.formatters.Logger.Logger()
self.valobj = valobj;
self.update()
def update(self):
logger = lldb.formatters.Logger.Logger()
self.adjust_for_architecture();
def value(self):
logger = lldb.formatters.Logger.Logger()
stream = lldb.SBStream()
self.valobj.GetExpressionPath(stream)
expr = "(NSString*)[" + stream.GetData() + " description]"
num_children_vo = self.valobj.CreateValueFromExpression("str",expr);
if num_children_vo.IsValid():
return num_children_vo.GetSummary()
return '<variable is not NSDate>'
def GetSummary_Impl(valobj):
logger = lldb.formatters.Logger.Logger()
global statistics
class_data,wrapper =lldb.runtime.objc.objc_runtime.Utilities.prepare_class_detection(valobj,statistics)
if wrapper:
return wrapper
name_string = class_data.class_name()
logger >> "class name is: " + str(name_string)
if name_string == 'NSDate' or name_string == '__NSDate' or name_string == '__NSTaggedDate':
if class_data.is_tagged():
wrapper = NSTaggedDate_SummaryProvider(valobj,class_data.info_bits(),class_data.value(), class_data.sys_params)
statistics.metric_hit('code_notrun',valobj)
else:
wrapper = NSUntaggedDate_SummaryProvider(valobj, class_data.sys_params)
statistics.metric_hit('code_notrun',valobj)
elif name_string == 'NSCalendarDate':
wrapper = NSCalendarDate_SummaryProvider(valobj, class_data.sys_params)
statistics.metric_hit('code_notrun',valobj)
elif name_string == '__NSTimeZone':
wrapper = NSTimeZoneClass_SummaryProvider(valobj, class_data.sys_params)
statistics.metric_hit('code_notrun',valobj)
else:
wrapper = NSUnknownDate_SummaryProvider(valobj)
statistics.metric_hit('unknown_class',valobj.GetName() + " seen as " + name_string)
return wrapper;
def NSDate_SummaryProvider (valobj,dict):
logger = lldb.formatters.Logger.Logger()
provider = GetSummary_Impl(valobj);
if provider != None:
if isinstance(provider,lldb.runtime.objc.objc_runtime.SpecialSituation_Description):
return provider.message()
try:
summary = provider.value();
except:
summary = None
if summary == None:
summary = '<variable is not NSDate>'
return str(summary)
return 'Summary Unavailable'
def NSTimeZone_SummaryProvider (valobj,dict):
logger = lldb.formatters.Logger.Logger()
provider = GetSummary_Impl(valobj);
if provider != None:
if isinstance(provider,lldb.runtime.objc.objc_runtime.SpecialSituation_Description):
return provider.message()
try:
summary = provider.timezone();
except:
summary = None
logger >> "got summary " + str(summary)
if summary == None:
summary = '<variable is not NSTimeZone>'
return str(summary)
return 'Summary Unavailable'
def CFAbsoluteTime_SummaryProvider (valobj,dict):
logger = lldb.formatters.Logger.Logger()
try:
value_double = struct.unpack('d', struct.pack('Q', valobj.GetData().uint64[0]))[0]
return xcode_format_count(osx_to_python_time(value_double))
except:
return 'Summary Unavailable'
def __lldb_init_module(debugger,dict):
debugger.HandleCommand("type summary add -F NSDate.NSDate_SummaryProvider NSDate")
debugger.HandleCommand("type summary add -F NSDate.CFAbsoluteTime_SummaryProvider CFAbsoluteTime")
debugger.HandleCommand("type summary add -F NSDate.NSTimeZone_SummaryProvider NSTimeZone CFTimeZoneRef")