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
|
"""
Test that lldb watchpoint works for multiple threads.
"""
from __future__ import print_function
import os
import time
import re
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class WatchpointForMultipleThreadsTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
NO_DEBUG_INFO_TESTCASE = True
main_spec = lldb.SBFileSpec("main.cpp", False)
@expectedFailureAll(
oslist=["windows"],
bugnumber="llvm.org/pr24446: WINDOWS XFAIL TRIAGE - Watchpoints not supported on Windows")
@expectedFailureNetBSD
def test_watchpoint_before_thread_start(self):
"""Test that we can hit a watchpoint we set before starting another thread"""
self.do_watchpoint_test("Before running the thread")
@expectedFailureAll(
oslist=["windows"],
bugnumber="llvm.org/pr24446: WINDOWS XFAIL TRIAGE - Watchpoints not supported on Windows")
@expectedFailureNetBSD
def test_watchpoint_after_thread_start(self):
"""Test that we can hit a watchpoint we set after starting another thread"""
self.do_watchpoint_test("After running the thread")
def do_watchpoint_test(self, line):
self.build()
lldbutil.run_to_source_breakpoint(self, line, self.main_spec)
# Now let's set a write-type watchpoint for variable 'g_val'.
self.expect(
"watchpoint set variable -w write g_val",
WATCHPOINT_CREATED,
substrs=[
'Watchpoint created',
'size = 4',
'type = w'])
# Use the '-v' option to do verbose listing of the watchpoint.
# The hit count should be 0 initially.
self.expect("watchpoint list -v",
substrs=['hit_count = 0'])
self.runCmd("process continue")
self.runCmd("thread list")
if "stop reason = watchpoint" in self.res.GetOutput():
# Good, we verified that the watchpoint works!
self.runCmd("thread backtrace all")
else:
self.fail("The stop reason should be either break or watchpoint")
# Use the '-v' option to do verbose listing of the watchpoint.
# The hit count should now be 1.
self.expect("watchpoint list -v",
substrs=['hit_count = 1'])
@expectedFailureAll(
oslist=["windows"],
bugnumber="llvm.org/pr24446: WINDOWS XFAIL TRIAGE - Watchpoints not supported on Windows")
def test_watchpoint_multiple_threads_wp_set_and_then_delete(self):
"""Test that lldb watchpoint works for multiple threads, and after the watchpoint is deleted, the watchpoint event should no longer fires."""
self.build()
self.setTearDownCleanup()
lldbutil.run_to_source_breakpoint(self, "After running the thread", self.main_spec)
# Now let's set a write-type watchpoint for variable 'g_val'.
self.expect(
"watchpoint set variable -w write g_val",
WATCHPOINT_CREATED,
substrs=[
'Watchpoint created',
'size = 4',
'type = w'])
# Use the '-v' option to do verbose listing of the watchpoint.
# The hit count should be 0 initially.
self.expect("watchpoint list -v",
substrs=['hit_count = 0'])
watchpoint_stops = 0
while True:
self.runCmd("process continue")
self.runCmd("process status")
if re.search("Process .* exited", self.res.GetOutput()):
# Great, we are done with this test!
break
self.runCmd("thread list")
if "stop reason = watchpoint" in self.res.GetOutput():
self.runCmd("thread backtrace all")
watchpoint_stops += 1
if watchpoint_stops > 1:
self.fail(
"Watchpoint hits not supposed to exceed 1 by design!")
# Good, we verified that the watchpoint works! Now delete the
# watchpoint.
if self.TraceOn():
print(
"watchpoint_stops=%d at the moment we delete the watchpoint" %
watchpoint_stops)
self.runCmd("watchpoint delete 1")
self.expect("watchpoint list -v",
substrs=['No watchpoints currently set.'])
continue
else:
self.fail("The stop reason should be either break or watchpoint")
|
