1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
"""
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.
"""
# summary provider for class NSException
import lldb.runtime.objc.objc_runtime
import lldb.formatters.metrics
import CFString
import lldb
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')
class NSKnownException_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.id):
self.sys_params.types_cache.id = self.valobj.GetType(
).GetBasicType(lldb.eBasicTypeObjCID)
self.update()
def update(self):
logger = lldb.formatters.Logger.Logger()
self.adjust_for_architecture()
def offset_name(self):
logger = lldb.formatters.Logger.Logger()
return self.sys_params.pointer_size
def offset_reason(self):
logger = lldb.formatters.Logger.Logger()
return 2 * self.sys_params.pointer_size
def description(self):
logger = lldb.formatters.Logger.Logger()
name_ptr = self.valobj.CreateChildAtOffset(
"name", self.offset_name(), self.sys_params.types_cache.id)
reason_ptr = self.valobj.CreateChildAtOffset(
"reason", self.offset_reason(), self.sys_params.types_cache.id)
return 'name:' + CFString.CFString_SummaryProvider(
name_ptr, None) + ' reason:' + CFString.CFString_SummaryProvider(reason_ptr, None)
class NSUnknownException_SummaryProvider:
def adjust_for_architecture(self):
pass
def __init__(self, valobj, params):
logger = lldb.formatters.Logger.Logger()
self.valobj = valobj
self.sys_params = params
self.update()
def update(self):
logger = lldb.formatters.Logger.Logger()
self.adjust_for_architecture()
def description(self):
logger = lldb.formatters.Logger.Logger()
stream = lldb.SBStream()
self.valobj.GetExpressionPath(stream)
name_vo = self.valobj.CreateValueFromExpression(
"name", "(NSString*)[" + stream.GetData() + " name]")
reason_vo = self.valobj.CreateValueFromExpression(
"reason", "(NSString*)[" + stream.GetData() + " reason]")
if name_vo.IsValid() and reason_vo.IsValid():
return CFString.CFString_SummaryProvider(
name_vo, None) + ' ' + CFString.CFString_SummaryProvider(reason_vo, None)
return '<variable is not NSException>'
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 == 'NSException':
wrapper = NSKnownException_SummaryProvider(
valobj, class_data.sys_params)
statistics.metric_hit('code_notrun', valobj)
else:
wrapper = NSUnknownException_SummaryProvider(
valobj, class_data.sys_params)
statistics.metric_hit(
'unknown_class',
valobj.GetName() +
" seen as " +
name_string)
return wrapper
def NSException_SummaryProvider(valobj, dict):
logger = lldb.formatters.Logger.Logger()
provider = GetSummary_Impl(valobj)
if provider is not None:
if isinstance(
provider,
lldb.runtime.objc.objc_runtime.SpecialSituation_Description):
return provider.message()
try:
summary = provider.description()
except:
summary = None
logger >> "got summary " + str(summary)
if summary is None:
summary = '<variable is not NSException>'
return str(summary)
return 'Summary Unavailable'
def __lldb_init_module(debugger, dict):
debugger.HandleCommand(
"type summary add -F NSException.NSException_SummaryProvider NSException")
|
