66 lines
2.2 KiB
Python
66 lines
2.2 KiB
Python
"""
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Test that expr will time out and allow other threads to run if it blocks.
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"""
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from __future__ import print_function
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import os
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import time
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import re
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class ExprDoesntDeadlockTestCase(TestBase):
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def getCategories(self):
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return ['basic_process']
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mydir = TestBase.compute_mydir(__file__)
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@expectedFailureAll(oslist=['freebsd'], bugnumber='llvm.org/pr17946')
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@expectedFailureAll(
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oslist=["windows"],
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bugnumber="Windows doesn't have pthreads, test needs to be ported")
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def test_with_run_command(self):
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"""Test that expr will time out and allow other threads to run if it blocks."""
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self.build()
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exe = os.path.join(os.getcwd(), "a.out")
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Now create a breakpoint at source line before call_me_to_get_lock
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# gets called.
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main_file_spec = lldb.SBFileSpec("locking.c")
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breakpoint = target.BreakpointCreateBySourceRegex(
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'Break here', main_file_spec)
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if self.TraceOn():
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print("breakpoint:", breakpoint)
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self.assertTrue(breakpoint and
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breakpoint.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Now launch the process, and do not stop at entry point.
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process = target.LaunchSimple(
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None, None, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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# Frame #0 should be on self.line1 and the break condition should hold.
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from lldbsuite.test.lldbutil import get_stopped_thread
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thread = get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertTrue(
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thread.IsValid(),
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"There should be a thread stopped due to breakpoint condition")
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frame0 = thread.GetFrameAtIndex(0)
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var = frame0.EvaluateExpression("call_me_to_get_lock()")
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self.assertTrue(var.IsValid())
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self.assertTrue(var.GetValueAsSigned(0) == 567)
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