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
|
"""
Test lldb Python API SBValue::Cast(SBType) for C++ types.
"""
import os, time
import re
import unittest2
import lldb, lldbutil
from lldbtest import *
class CppValueCastTestCase(TestBase):
mydir = os.path.join("lang", "cpp", "dynamic-value")
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
@python_api_test
def test_value_cast_with_dsym(self):
"""Test SBValue::Cast(SBType) API for C++ types."""
self.buildDsym(dictionary=self.d)
self.do_sbvalue_cast(self.exe_name)
@python_api_test
def test_get_dynamic_vals_with_dwarf(self):
"""Test SBValue::Cast(SBType) API for C++ types."""
self.buildDwarf(dictionary=self.d)
self.do_sbvalue_cast(self.exe_name)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break for main.c.
self.source = 'sbvalue-cast.cpp';
self.line = line_number(self.source, '// Set breakpoint here.')
self.exe_name = self.testMethodName
self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
def do_sbvalue_cast (self, exe_name):
"""Test SBValue::Cast(SBType) API for C++ types."""
exe = os.path.join(os.getcwd(), exe_name)
# Create a target from the debugger.
target = self.dbg.CreateTarget (exe)
self.assertTrue(target, VALID_TARGET)
# Set up our breakpoints:
breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
self.assertTrue(breakpoint, VALID_BREAKPOINT)
# Now launch the process, and do not stop at the entry point.
process = target.LaunchSimple (None, None, os.getcwd())
self.assertTrue(process.GetState() == lldb.eStateStopped,
PROCESS_STOPPED)
# Find DerivedA and DerivedB types.
typeA = target.FindFirstType('DerivedA')
typeB = target.FindFirstType('DerivedB')
self.DebugSBType(typeA)
self.DebugSBType(typeB)
self.assertTrue(typeA)
self.assertTrue(typeB)
error = lldb.SBError()
# First stop is for DerivedA instance.
threads = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint)
self.assertTrue (len(threads) == 1)
thread = threads[0]
frame0 = thread.GetFrameAtIndex(0)
tellerA = frame0.FindVariable('teller', lldb.eNoDynamicValues)
self.DebugSBValue(tellerA)
self.assertTrue(tellerA.GetChildMemberWithName('m_base_val').GetValueAsUnsigned(error, 0) == 20)
if self.TraceOn():
for child in tellerA:
print "child name:", child.GetName()
print child
# Call SBValue.Cast() to obtain instanceA.
instanceA = tellerA.Cast(typeA.GetPointerType())
self.DebugSBValue(instanceA)
# These outputs don't look correct?
if self.TraceOn():
for child in instanceA:
print "child name:", child.GetName()
print child
a_member_val = instanceA.GetChildMemberWithName('m_a_val')
self.DebugSBValue(a_member_val)
# Second stop is for DerivedB instance.
threads = lldbutil.continue_to_breakpoint (process, breakpoint)
self.assertTrue (len(threads) == 1)
thread = threads[0]
frame0 = thread.GetFrameAtIndex(0)
tellerB = frame0.FindVariable('teller', lldb.eNoDynamicValues)
self.DebugSBValue(tellerB)
self.assertTrue(tellerB.GetChildMemberWithName('m_base_val').GetValueAsUnsigned(error, 0) == 12)
if self.TraceOn():
for child in tellerB:
print "child name:", child.GetName()
print child
# Call SBValue.Cast() to obtain instanceB.
instanceB = tellerB.Cast(typeB.GetPointerType())
self.DebugSBValue(instanceB)
# These outputs don't look correct?
if self.TraceOn():
for child in instanceB:
print "child name:", child.GetName()
print child
b_member_val = instanceB.GetChildMemberWithName('m_b_val')
self.DebugSBValue(b_member_val)
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
|
