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
|
"""Test that we handle inferiors that send signals to themselves"""
import lldb
import re
from lldbsuite.test.lldbplatformutil import getDarwinOSTriples
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
@skipIfWindows # signals do not exist on Windows
class RaiseTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
NO_DEBUG_INFO_TESTCASE = True
@skipIfNetBSD # Hangs on NetBSD
def test_sigstop(self):
self.build()
self.signal_test('SIGSTOP', False)
# passing of SIGSTOP is not correctly handled, so not testing that
# scenario: https://llvm.org/bugs/show_bug.cgi?id=23574
@skipIfDarwin # darwin does not support real time signals
@skipIfTargetAndroid()
def test_sigsigrtmin(self):
self.build()
self.signal_test('SIGRTMIN', True)
@skipIfNetBSD # Hangs on NetBSD
def test_sigtrap(self):
self.build()
self.signal_test('SIGTRAP', True)
def launch(self, target, signal):
# launch the process, do not stop at entry point.
process = target.LaunchSimple(
[signal], None, self.get_process_working_directory())
self.assertTrue(process, PROCESS_IS_VALID)
self.assertEqual(process.GetState(), lldb.eStateStopped)
thread = lldbutil.get_stopped_thread(
process, lldb.eStopReasonBreakpoint)
self.assertTrue(
thread.IsValid(),
"Thread should be stopped due to a breakpoint")
return process
def set_handle(self, signal, pass_signal, stop_at_signal, notify_signal):
return_obj = lldb.SBCommandReturnObject()
self.dbg.GetCommandInterpreter().HandleCommand(
"process handle %s -p %s -s %s -n %s" %
(signal, pass_signal, stop_at_signal, notify_signal), return_obj)
self.assertTrue(
return_obj.Succeeded(),
"Setting signal handling failed")
def signal_test(self, signal, test_passing):
"""Test that we handle inferior raising signals"""
exe = self.getBuildArtifact("a.out")
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
lldbutil.run_break_set_by_symbol(self, "main")
# launch
process = self.launch(target, signal)
signo = process.GetUnixSignals().GetSignalNumberFromName(signal)
# retrieve default signal disposition
return_obj = lldb.SBCommandReturnObject()
self.dbg.GetCommandInterpreter().HandleCommand(
"process handle %s " % signal, return_obj)
match = re.match(
'NAME *PASS *STOP *NOTIFY.*(false|true) *(false|true) *(false|true)',
return_obj.GetOutput(),
re.IGNORECASE | re.DOTALL)
if not match:
self.fail('Unable to retrieve default signal disposition.')
default_pass = match.group(1)
default_stop = match.group(2)
default_notify = match.group(3)
# Make sure we stop at the signal
self.set_handle(signal, "false", "true", "true")
process.Continue()
self.assertEqual(process.GetState(), lldb.eStateStopped)
thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal)
self.assertTrue(
thread.IsValid(),
"Thread should be stopped due to a signal")
self.assertTrue(
thread.GetStopReasonDataCount() >= 1,
"There was data in the event.")
self.assertEqual(thread.GetStopReasonDataAtIndex(0), signo,
"The stop signal was %s" % signal)
# Continue until we exit.
process.Continue()
self.assertEqual(process.GetState(), lldb.eStateExited)
self.assertEqual(process.GetExitStatus(), 0)
# launch again
process = self.launch(target, signal)
# Make sure we do not stop at the signal. We should still get the
# notification.
self.set_handle(signal, "false", "false", "true")
self.expect(
"process continue",
substrs=[
"stopped and restarted",
signal])
self.assertEqual(process.GetState(), lldb.eStateExited)
self.assertEqual(process.GetExitStatus(), 0)
# launch again
process = self.launch(target, signal)
# Make sure we do not stop at the signal, and we do not get the
# notification.
self.set_handle(signal, "false", "false", "false")
self.expect(
"process continue",
substrs=["stopped and restarted"],
matching=False)
self.assertEqual(process.GetState(), lldb.eStateExited)
self.assertEqual(process.GetExitStatus(), 0)
if not test_passing:
# reset signal handling to default
self.set_handle(signal, default_pass, default_stop, default_notify)
return
# launch again
process = self.launch(target, signal)
# Make sure we stop at the signal
self.set_handle(signal, "true", "true", "true")
process.Continue()
self.assertEqual(process.GetState(), lldb.eStateStopped)
thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal)
self.assertTrue(
thread.IsValid(),
"Thread should be stopped due to a signal")
self.assertTrue(
thread.GetStopReasonDataCount() >= 1,
"There was data in the event.")
self.assertEqual(
thread.GetStopReasonDataAtIndex(0),
process.GetUnixSignals().GetSignalNumberFromName(signal),
"The stop signal was %s" %
signal)
# Continue until we exit. The process should receive the signal.
process.Continue()
self.assertEqual(process.GetState(), lldb.eStateExited)
self.assertEqual(process.GetExitStatus(), signo)
# launch again
process = self.launch(target, signal)
# Make sure we do not stop at the signal. We should still get the notification. Process
# should receive the signal.
self.set_handle(signal, "true", "false", "true")
self.expect(
"process continue",
substrs=[
"stopped and restarted",
signal])
self.assertEqual(process.GetState(), lldb.eStateExited)
self.assertEqual(process.GetExitStatus(), signo)
# launch again
process = self.launch(target, signal)
# Make sure we do not stop at the signal, and we do not get the notification. Process
# should receive the signal.
self.set_handle(signal, "true", "false", "false")
self.expect(
"process continue",
substrs=["stopped and restarted"],
matching=False)
self.assertEqual(process.GetState(), lldb.eStateExited)
self.assertEqual(process.GetExitStatus(), signo)
# reset signal handling to default
self.set_handle(signal, default_pass, default_stop, default_notify)
|
