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
|
"""Show bitfields and check that they display correctly."""
from __future__ import print_function
import os, time
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class BitfieldsTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break inside main().
self.line = line_number('main.c', '// Set break point at this line.')
@skipIfWindows # BitFields exhibit crashes in record layout on Windows (http://llvm.org/pr21800)
def test_and_run_command(self):
"""Test 'frame variable ...' on a variable with bitfields."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Break inside the main.
lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
self.runCmd("run", RUN_SUCCEEDED)
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['stopped',
'stop reason = breakpoint'])
# The breakpoint should have a hit count of 1.
self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
substrs = [' resolved, hit count = 1'])
# This should display correctly.
self.expect("frame variable --show-types bits", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['(uint32_t:1) b1 = 1',
'(uint32_t:2) b2 = 3',
'(uint32_t:3) b3 = 7',
'(uint32_t) b4 = 15',
'(uint32_t:5) b5 = 31',
'(uint32_t:6) b6 = 63',
'(uint32_t:7) b7 = 127',
'(uint32_t:4) four = 15'])
# And so should this.
# rdar://problem/8348251
self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['(uint32_t:1) b1 = 1',
'(uint32_t:2) b2 = 3',
'(uint32_t:3) b3 = 7',
'(uint32_t) b4 = 15',
'(uint32_t:5) b5 = 31',
'(uint32_t:6) b6 = 63',
'(uint32_t:7) b7 = 127',
'(uint32_t:4) four = 15'])
self.expect("expr (bits.b1)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint32_t', '1'])
self.expect("expr (bits.b2)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint32_t', '3'])
self.expect("expr (bits.b3)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint32_t', '7'])
self.expect("expr (bits.b4)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint32_t', '15'])
self.expect("expr (bits.b5)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint32_t', '31'])
self.expect("expr (bits.b6)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint32_t', '63'])
self.expect("expr (bits.b7)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint32_t', '127'])
self.expect("expr (bits.four)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint32_t', '15'])
self.expect("frame variable --show-types more_bits", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['(uint32_t:3) a = 3',
'(uint8_t:1) b = \'\\0\'',
'(uint8_t:1) c = \'\\x01\'',
'(uint8_t:1) d = \'\\0\''])
self.expect("expr (more_bits.a)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint32_t', '3'])
self.expect("expr (more_bits.b)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint8_t', '\\0'])
self.expect("expr (more_bits.c)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint8_t', '\\x01'])
self.expect("expr (more_bits.d)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint8_t', '\\0'])
self.expect("expr (packed.a)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['char', "'a'"])
self.expect("expr (packed.b)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint32_t', "10"])
self.expect("expr/x (packed.c)", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['uint32_t', "7112233"])
@add_test_categories(['pyapi'])
@skipIfWindows # BitFields exhibit crashes in record layout on Windows (http://llvm.org/pr21800)
@expectedFailureAll("llvm.org/pr27510", oslist=["linux"], compiler="clang", compiler_version=[">=", "3.9"])
def test_and_python_api(self):
"""Use Python APIs to inspect a bitfields variable."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
breakpoint = target.BreakpointCreateByLocation("main.c", self.line)
self.assertTrue(breakpoint, VALID_BREAKPOINT)
process = target.LaunchSimple (None, None, self.get_process_working_directory())
self.assertTrue(process, PROCESS_IS_VALID)
# The stop reason of the thread should be breakpoint.
thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
self.assertIsNotNone(thread)
# The breakpoint should have a hit count of 1.
self.assertEqual(breakpoint.GetHitCount(), 1, BREAKPOINT_HIT_ONCE)
# Lookup the "bits" variable which contains 8 bitfields.
frame = thread.GetFrameAtIndex(0)
bits = frame.FindVariable("bits")
self.DebugSBValue(bits)
self.assertTrue(bits.GetTypeName() == 'Bits', "bits.GetTypeName() == 'Bits'");
self.assertTrue(bits.GetNumChildren() == 10, "bits.GetNumChildren() == 10");
test_compiler = self.getCompiler()
self.assertTrue(bits.GetByteSize() == 32, "bits.GetByteSize() == 32");
# Notice the pattern of int(b1.GetValue(), 0). We pass a base of 0
# so that the proper radix is determined based on the contents of the
# string.
b1 = bits.GetChildMemberWithName("b1")
self.DebugSBValue(b1)
self.assertTrue(b1.GetName() == "b1" and
b1.GetTypeName() == "uint32_t:1" and
b1.IsInScope() and
int(b1.GetValue(), 0) == 1,
'bits.b1 has type uint32_t:1, is in scope, and == 1')
b7 = bits.GetChildMemberWithName("b7")
self.DebugSBValue(b7)
self.assertTrue(b7.GetName() == "b7" and
b7.GetTypeName() == "uint32_t:7" and
b7.IsInScope() and
int(b7.GetValue(), 0) == 127,
'bits.b7 has type uint32_t:7, is in scope, and == 127')
four = bits.GetChildMemberWithName("four")
self.DebugSBValue(four)
self.assertTrue(four.GetName() == "four" and
four.GetTypeName() == "uint32_t:4" and
four.IsInScope() and
int(four.GetValue(), 0) == 15,
'bits.four has type uint32_t:4, is in scope, and == 15')
# Now kill the process, and we are done.
rc = target.GetProcess().Kill()
self.assertTrue(rc.Success())
|
