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| """
Test that expr will time out and allow other threads to run if it blocks.
"""
from __future__ import print_function
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class ExprDoesntDeadlockTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
@expectedFailureAll(oslist=['freebsd'], bugnumber='llvm.org/pr17946')
@expectedFailureAll(
oslist=["windows"],
bugnumber="Windows doesn't have pthreads, test needs to be ported")
@add_test_categories(["basic_process"])
def test_with_run_command(self):
"""Test that expr will time out and allow other threads to run if it blocks."""
self.build()
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 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)
|