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
|
"""
Test breakpoint ignore count features.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class BreakpointIgnoreCountTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
@skipIfWindows # This test will hang on windows llvm.org/pr21753
def test_with_run_command(self):
"""Exercise breakpoint ignore count with 'breakpoint set -i <count>'."""
self.build()
self.breakpoint_ignore_count()
@add_test_categories(['pyapi'])
@skipIfWindows # This test will hang on windows llvm.org/pr21753
def test_with_python_api(self):
"""Use Python APIs to set breakpoint ignore count."""
self.build()
self.breakpoint_ignore_count_python()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to of function 'c'.
self.line1 = line_number(
'main.c', '// Find the line number of function "c" here.')
self.line2 = line_number(
'main.c', '// b(2) -> c(2) Find the call site of b(2).')
self.line3 = line_number(
'main.c', '// a(3) -> c(3) Find the call site of c(3).')
self.line4 = line_number(
'main.c', '// a(3) -> c(3) Find the call site of a(3).')
self.line5 = line_number(
'main.c', '// Find the call site of c in main.')
def breakpoint_ignore_count(self):
"""Exercise breakpoint ignore count with 'breakpoint set -i <count>'."""
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Create a breakpoint in main.c at line1.
lldbutil.run_break_set_by_file_and_line(
self,
'main.c',
self.line1,
extra_options='-i 1',
num_expected_locations=1,
loc_exact=True)
# Now run the program.
self.runCmd("run", RUN_SUCCEEDED)
# The process should be stopped at this point.
self.expect("process status", PROCESS_STOPPED,
patterns=['Process .* stopped'])
# Also check the hit count, which should be 2, due to ignore count of
# 1.
self.expect("breakpoint list -f", BREAKPOINT_HIT_THRICE,
substrs=["resolved = 1",
"hit count = 2"])
# The frame #0 should correspond to main.c:37, the executable statement
# in function name 'c'. And frame #2 should point to main.c:45.
self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT,
#substrs = ["stop reason = breakpoint"],
patterns=["frame #0.*main.c:%d" % self.line1,
"frame #2.*main.c:%d" % self.line2])
# continue -i 1 is the same as setting the ignore count to 1 again, try that:
# Now run the program.
self.runCmd("process continue -i 1", RUN_SUCCEEDED)
# The process should be stopped at this point.
self.expect("process status", PROCESS_STOPPED,
patterns=['Process .* stopped'])
# Also check the hit count, which should be 2, due to ignore count of
# 1.
self.expect("breakpoint list -f", BREAKPOINT_HIT_THRICE,
substrs=["resolved = 1",
"hit count = 4"])
# The frame #0 should correspond to main.c:37, the executable statement
# in function name 'c'. And frame #2 should point to main.c:45.
self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT,
#substrs = ["stop reason = breakpoint"],
patterns=["frame #0.*main.c:%d" % self.line1,
"frame #1.*main.c:%d" % self.line5])
def breakpoint_ignore_count_python(self):
"""Use Python APIs to set breakpoint ignore count."""
exe = self.getBuildArtifact("a.out")
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
# Now create a breakpoint on main.c by name 'c'.
breakpoint = target.BreakpointCreateByName('c', 'a.out')
self.assertTrue(breakpoint and
breakpoint.GetNumLocations() == 1,
VALID_BREAKPOINT)
# Get the breakpoint location from breakpoint after we verified that,
# indeed, it has one location.
location = breakpoint.GetLocationAtIndex(0)
self.assertTrue(location and
location.IsEnabled(),
VALID_BREAKPOINT_LOCATION)
# Set the ignore count on the breakpoint location.
location.SetIgnoreCount(2)
self.assertTrue(location.GetIgnoreCount() == 2,
"SetIgnoreCount() works correctly")
# 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)
# Frame#0 should be on main.c:37, frame#1 should be on main.c:25, and
# frame#2 should be on main.c:48.
# lldbutil.print_stacktraces(process)
from lldbsuite.test.lldbutil import get_stopped_thread
thread = get_stopped_thread(process, lldb.eStopReasonBreakpoint)
self.assertTrue(
thread.IsValid(),
"There should be a thread stopped due to breakpoint")
frame0 = thread.GetFrameAtIndex(0)
frame1 = thread.GetFrameAtIndex(1)
frame2 = thread.GetFrameAtIndex(2)
self.assertTrue(frame0.GetLineEntry().GetLine() == self.line1 and
frame1.GetLineEntry().GetLine() == self.line3 and
frame2.GetLineEntry().GetLine() == self.line4,
STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT)
# The hit count for the breakpoint should be 3.
self.assertTrue(breakpoint.GetHitCount() == 3)
process.Continue()
|
