f784fa7275
This test is trying to exercise code running constructors with interrupts. While we should fix this, this is creating noise on the bots.
114 lines
4.5 KiB
Python
114 lines
4.5 KiB
Python
"""
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Make sure that we handle an expression on a thread, if
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the thread exits while the expression is running.
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"""
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import lldb
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from lldbsuite.test.decorators import *
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import lldbsuite.test.lldbutil as lldbutil
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from lldbsuite.test.lldbtest import *
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@skipIfAsan
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class TestExitDuringExpression(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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@skipIfWindows
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@skipIf(oslist=["linux"], archs=["arm", "aarch64"], bugnumber="llvm.org/pr48414")
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@expectedFailureAll(oslist=["freebsd"], bugnumber="llvm.org/pr48414")
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@expectedFailureNetBSD
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def test_exit_before_one_thread_unwind(self):
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"""Test the case where we exit within the one thread timeout"""
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self.exiting_expression_test(True, True)
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@skipIfWindows
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@skipIf(oslist=["linux"], archs=["arm", "aarch64"], bugnumber="llvm.org/pr48414")
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@expectedFailureAll(oslist=["freebsd"], bugnumber="llvm.org/pr48414")
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@expectedFailureNetBSD
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def test_exit_before_one_thread_no_unwind(self):
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"""Test the case where we exit within the one thread timeout"""
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self.exiting_expression_test(True, False)
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@skipIfWindows
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def test_exit_after_one_thread_unwind(self):
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"""Test the case where we exit within the one thread timeout"""
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self.exiting_expression_test(False, True)
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@skipIfWindows
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def test_exit_after_one_thread_no_unwind(self):
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"""Test the case where we exit within the one thread timeout"""
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self.exiting_expression_test(False, False)
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def setUp(self):
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TestBase.setUp(self)
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self.main_source_file = lldb.SBFileSpec("main.c")
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self.build()
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def exiting_expression_test(self, before_one_thread_timeout, unwind):
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"""function_to_call sleeps for g_timeout microseconds, then calls pthread_exit.
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This test calls function_to_call with an overall timeout of 500
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microseconds, and a one_thread_timeout as passed in.
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It also sets unwind_on_exit for the call to the unwind passed in.
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This allows you to have the thread exit either before the one thread
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timeout is passed."""
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(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
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self, "Break here and cause the thread to exit", self.main_source_file
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)
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# We'll continue to this breakpoint after running our expression:
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return_bkpt = target.BreakpointCreateBySourceRegex(
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"Break here to make sure the thread exited", self.main_source_file
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)
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frame = thread.frames[0]
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tid = thread.GetThreadID()
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# Find the timeout:
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var_options = lldb.SBVariablesOptions()
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var_options.SetIncludeArguments(False)
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var_options.SetIncludeLocals(False)
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var_options.SetIncludeStatics(True)
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value_list = frame.GetVariables(var_options)
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g_timeout = value_list.GetFirstValueByName("g_timeout")
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self.assertTrue(g_timeout.IsValid(), "Found g_timeout")
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error = lldb.SBError()
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timeout_value = g_timeout.GetValueAsUnsigned(error)
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self.assertSuccess(error, "Couldn't get timeout value")
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one_thread_timeout = 0
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if before_one_thread_timeout:
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one_thread_timeout = timeout_value * 2
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else:
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one_thread_timeout = int(timeout_value / 2)
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options = lldb.SBExpressionOptions()
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options.SetUnwindOnError(unwind)
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options.SetOneThreadTimeoutInMicroSeconds(one_thread_timeout)
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options.SetTimeoutInMicroSeconds(4 * timeout_value)
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result = frame.EvaluateExpression("function_to_call()", options)
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# Make sure the thread actually exited:
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thread = process.GetThreadByID(tid)
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self.assertFalse(thread.IsValid(), "The thread exited")
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# Make sure the expression failed:
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self.assertFalse(result.GetError().Success(), "Expression failed.")
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# Make sure we can keep going:
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threads = lldbutil.continue_to_breakpoint(process, return_bkpt)
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if not threads:
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self.fail("didn't get any threads back after continuing")
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self.assertEqual(len(threads), 1, "One thread hit our breakpoint")
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thread = threads[0]
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frame = thread.frames[0]
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# Now get the return value, if we successfully caused the thread to exit
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# it should be 10, not 20.
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ret_val = frame.FindVariable("ret_val")
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self.assertSuccess(ret_val.GetError(), "Found ret_val")
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ret_val_value = ret_val.GetValueAsSigned(error)
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self.assertSuccess(error, "Got ret_val's value")
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self.assertEqual(ret_val_value, 10, "We put the right value in ret_val")
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