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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
"""
Test some SBValue APIs.
"""
from __future__ import print_function
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class ValueAPITestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# We'll use the test method name as the exe_name.
self.exe_name = self.testMethodName
# Find the line number to of function 'c'.
self.line = line_number('main.c', '// Break at this line')
@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24772")
@add_test_categories(['pyapi'])
def test(self):
"""Exercise some SBValue APIs."""
d = {'EXE': self.exe_name}
self.build(dictionary=d)
self.setTearDownCleanup(dictionary=d)
exe = self.getBuildArtifact(self.exe_name)
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
# Create the breakpoint inside function 'main'.
breakpoint = target.BreakpointCreateByLocation('main.c', self.line)
self.assertTrue(breakpoint, VALID_BREAKPOINT)
# Now launch the process, and do not stop at entry point.
process = target.LaunchSimple(
None, None, self.get_process_working_directory())
self.assertTrue(process, PROCESS_IS_VALID)
# Get Frame #0.
self.assertTrue(process.GetState() == lldb.eStateStopped)
thread = lldbutil.get_stopped_thread(
process, lldb.eStopReasonBreakpoint)
self.assertTrue(
thread.IsValid(),
"There should be a thread stopped due to breakpoint condition")
frame0 = thread.GetFrameAtIndex(0)
# Get global variable 'days_of_week'.
list = target.FindGlobalVariables('days_of_week', 1)
days_of_week = list.GetValueAtIndex(0)
self.assertTrue(days_of_week, VALID_VARIABLE)
self.assertEqual(days_of_week.GetNumChildren(), 7, VALID_VARIABLE)
self.DebugSBValue(days_of_week)
# Use this to test the "child" and "children" accessors:
children = days_of_week.children
self.assertEqual(len(children), 7, VALID_VARIABLE)
for i in range(0, len(children)):
day = days_of_week.child[i]
list_day = children[i]
self.assertNotEqual(day, None)
self.assertNotEqual(list_day, None)
self.assertEqual(day.GetSummary(), list_day.GetSummary(), VALID_VARIABLE)
# Spot check the actual value:
first_day = days_of_week.child[1]
self.assertEqual(first_day.GetSummary(), '"Monday"', VALID_VARIABLE)
# Get global variable 'weekdays'.
list = target.FindGlobalVariables('weekdays', 1)
weekdays = list.GetValueAtIndex(0)
self.assertTrue(weekdays, VALID_VARIABLE)
self.assertTrue(weekdays.GetNumChildren() == 5, VALID_VARIABLE)
self.DebugSBValue(weekdays)
# Get global variable 'g_table'.
list = target.FindGlobalVariables('g_table', 1)
g_table = list.GetValueAtIndex(0)
self.assertTrue(g_table, VALID_VARIABLE)
self.assertTrue(g_table.GetNumChildren() == 2, VALID_VARIABLE)
self.DebugSBValue(g_table)
fmt = lldbutil.BasicFormatter()
cvf = lldbutil.ChildVisitingFormatter(indent_child=2)
rdf = lldbutil.RecursiveDecentFormatter(indent_child=2)
if self.TraceOn():
print(fmt.format(days_of_week))
print(cvf.format(days_of_week))
print(cvf.format(weekdays))
print(rdf.format(g_table))
# Get variable 'my_int_ptr'.
value = frame0.FindVariable('my_int_ptr')
self.assertTrue(value, VALID_VARIABLE)
self.DebugSBValue(value)
# Get what 'my_int_ptr' points to.
pointed = value.GetChildAtIndex(0)
self.assertTrue(pointed, VALID_VARIABLE)
self.DebugSBValue(pointed)
# While we are at it, verify that 'my_int_ptr' points to 'g_my_int'.
symbol = target.ResolveLoadAddress(
int(pointed.GetLocation(), 0)).GetSymbol()
self.assertTrue(symbol)
self.expect(symbol.GetName(), exe=False,
startstr='g_my_int')
# Get variable 'str_ptr'.
value = frame0.FindVariable('str_ptr')
self.assertTrue(value, VALID_VARIABLE)
self.DebugSBValue(value)
# SBValue::TypeIsPointerType() should return true.
self.assertTrue(value.TypeIsPointerType())
# Verify the SBValue::GetByteSize() API is working correctly.
arch = self.getArchitecture()
if arch == 'i386':
self.assertTrue(value.GetByteSize() == 4)
elif arch == 'x86_64':
self.assertTrue(value.GetByteSize() == 8)
# Get child at index 5 => 'Friday'.
child = value.GetChildAtIndex(5, lldb.eNoDynamicValues, True)
self.assertTrue(child, VALID_VARIABLE)
self.DebugSBValue(child)
self.expect(child.GetSummary(), exe=False,
substrs=['Friday'])
# Now try to get at the same variable using GetValueForExpressionPath().
# These two SBValue objects should have the same value.
val2 = value.GetValueForExpressionPath('[5]')
self.assertTrue(val2, VALID_VARIABLE)
self.DebugSBValue(val2)
self.assertTrue(child.GetValue() == val2.GetValue() and
child.GetSummary() == val2.GetSummary())
val_i = target.EvaluateExpression('i')
val_s = target.EvaluateExpression('s')
val_a = target.EvaluateExpression('a')
self.assertTrue(
val_s.GetChildMemberWithName('a').GetAddress().IsValid(),
VALID_VARIABLE)
self.assertTrue(
val_s.GetChildMemberWithName('a').AddressOf(),
VALID_VARIABLE)
self.assertTrue(
val_a.Cast(
val_i.GetType()).AddressOf(),
VALID_VARIABLE)
# Check that lldb.value implements truth testing.
self.assertFalse(lldb.value(frame0.FindVariable('bogus')))
self.assertTrue(lldb.value(frame0.FindVariable('uinthex')))
self.assertTrue(int(lldb.value(frame0.FindVariable('uinthex')))
== 3768803088, 'uinthex == 3768803088')
self.assertTrue(int(lldb.value(frame0.FindVariable('sinthex')))
== -526164208, 'sinthex == -526164208')
# Check value_iter works correctly.
for v in [
lldb.value(frame0.FindVariable('uinthex')),
lldb.value(frame0.FindVariable('sinthex'))
]:
self.assertTrue(v)
self.assertTrue(
frame0.FindVariable('uinthex').GetValueAsUnsigned() == 3768803088,
'unsigned uinthex == 3768803088')
self.assertTrue(
frame0.FindVariable('sinthex').GetValueAsUnsigned() == 3768803088,
'unsigned sinthex == 3768803088')
self.assertTrue(
frame0.FindVariable('uinthex').GetValueAsSigned() == -
526164208,
'signed uinthex == -526164208')
self.assertTrue(
frame0.FindVariable('sinthex').GetValueAsSigned() == -
526164208,
'signed sinthex == -526164208')
|
