This test relies on being able to unwind from an arbitrary place inside libc. While I am not sure this is the cause of the observed flakyness, it is known that we are not able to unwind correctly from some places in (linux) libc. This patch adds additional synchronization to ensure that the inferior is in the main function (instead of pthread guts) when lldb tries to unwind it. At the very least, it should make the test runs more predictable/repeatable.
57 lines
1.7 KiB
Python
57 lines
1.7 KiB
Python
"""
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Test the 'gui' default thread tree expansion.
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The root process tree item and the tree item corresponding to the selected
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thread should be expanded by default.
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"""
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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.lldbpexpect import PExpectTest
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class TestGuiExpandThreadsTree(PExpectTest):
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mydir = TestBase.compute_mydir(__file__)
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# PExpect uses many timeouts internally and doesn't play well
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# under ASAN on a loaded machine..
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@skipIfAsan
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@skipIfCursesSupportMissing
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@skipIf(oslist=["linux"], archs=["arm", "aarch64"])
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def test_gui(self):
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self.build()
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self.launch(executable=self.getBuildArtifact("a.out"), dimensions=(100,500))
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self.expect("breakpoint set -n break_here", substrs=["Breakpoint 1", "address ="])
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self.expect("run", substrs=["stop reason ="])
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escape_key = chr(27).encode()
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# Start the GUI and close the welcome window.
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self.child.sendline("gui")
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self.child.send(escape_key)
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self.child.expect_exact("Threads")
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# The thread running thread_start_routine should be expanded.
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self.child.expect_exact("frame #0: break_here")
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# Exit GUI.
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self.child.send(escape_key)
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self.expect_prompt()
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# Select the main thread.
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self.child.sendline("thread select 1")
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# Start the GUI.
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self.child.sendline("gui")
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self.child.expect_exact("Threads")
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# The main thread should be expanded.
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self.child.expect("frame #\d+: main")
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# Quit the GUI
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self.child.send(escape_key)
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self.expect_prompt()
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self.quit()
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