76 lines
2.6 KiB
Python
76 lines
2.6 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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import os, time
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import re
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import unittest2
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import lldb, lldbutil
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from lldbtest import *
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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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@skipUnlessDarwin
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@dsym_test
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def test_with_dsym_and_run_command(self):
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"""Test that expr will time out and allow other threads to run if it blocks - with dsym."""
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self.buildDsym()
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self.expr_doesnt_deadlock()
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@dwarf_test
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@expectedFailureFreeBSD('llvm.org/pr17946')
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@expectedFlakeyLinux # failed 1/365 test runs, line 61, thread.IsValid()
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@expectedFailureWindows # Windows doesn't have pthreads, need to port this test.
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def test_with_dwarf_and_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.buildDwarf()
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self.expr_doesnt_deadlock()
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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def expr_doesnt_deadlock (self):
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"""Test that expr will time out and allow other threads to run if it blocks."""
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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 gets called.
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main_file_spec = lldb.SBFileSpec ("locking.c")
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breakpoint = target.BreakpointCreateBySourceRegex('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 (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 lldbutil import get_stopped_thread
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thread = get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertTrue(thread.IsValid(), "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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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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