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
|
"""
Test that expr will time out and allow other threads to run if it blocks.
"""
from __future__ import print_function
import os, time
import re
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.lldbtest import *
class ExprDoesntDeadlockTestCase(TestBase):
def getCategories(self):
return ['basic_process']
mydir = TestBase.compute_mydir(__file__)
@expectedFailureFreeBSD('llvm.org/pr17946')
@expectedFlakeyLinux # failed 1/365 test runs, line 61, thread.IsValid()
@expectedFailureWindows # Windows doesn't have pthreads, need to port this test.
def test_with_run_command(self):
"""Test that expr will time out and allow other threads to run if it blocks."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
# Now create a breakpoint at source line before call_me_to_get_lock gets called.
main_file_spec = lldb.SBFileSpec ("locking.c")
breakpoint = target.BreakpointCreateBySourceRegex('Break here', main_file_spec)
if self.TraceOn():
print("breakpoint:", breakpoint)
self.assertTrue(breakpoint and
breakpoint.GetNumLocations() == 1,
VALID_BREAKPOINT)
# 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 self.line1 and the break condition should hold.
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 condition")
frame0 = thread.GetFrameAtIndex(0)
var = frame0.EvaluateExpression ("call_me_to_get_lock()")
self.assertTrue (var.IsValid())
self.assertTrue (var.GetValueAsSigned (0) == 567)
|
