2c2eb5e670
The new FreeBSDRemote plugin has reached feature parity on i386 and amd64 targets. Use it by default on these architectures, while allowing the use of the legacy plugin via FREEBSD_LEGACY_PLUGIN envvar. Revisit the method of switching plugins. Apparently, the return value of PlatformFreeBSD::CanDebugProcess() is what really decides whether the legacy or the new plugin is used. Update the test status. Reenable the tests that were previously disabled on FreeBSD and do not cause hangs or are irrelevant to FreeBSD. Mark all tests that fail reliably as expectedFailure. For now, tests that are flaky (i.e. produce unstable results) are left enabled and cause unpredictable test failures. Differential Revision: https://reviews.llvm.org/D90757
111 lines
4.2 KiB
Python
111 lines
4.2 KiB
Python
"""Test that lldb command 'process signal SIGUSR1' to send a signal to the inferior works."""
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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 SendSignalTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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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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# Find the line number to break inside main().
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self.line = line_number('main.c', 'Put breakpoint here')
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@expectedFailureNetBSD(bugnumber='llvm.org/pr43959')
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@skipIfWindows # Windows does not support signals
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@skipIfReproducer # FIXME: Unexpected packet during (active) replay
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def test_with_run_command(self):
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"""Test that lldb command 'process signal SIGUSR1' sends a signal to the inferior process."""
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self.build()
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exe = self.getBuildArtifact("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 on main.c by name 'c'.
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breakpoint = target.BreakpointCreateByLocation('main.c', self.line)
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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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# Get the breakpoint location from breakpoint after we verified that,
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# indeed, it has one location.
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location = breakpoint.GetLocationAtIndex(0)
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self.assertTrue(location and
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location.IsEnabled(),
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VALID_BREAKPOINT_LOCATION)
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# Now launch the process, no arguments & do not stop at entry point.
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launch_info = target.GetLaunchInfo()
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launch_info.SetWorkingDirectory(self.get_process_working_directory())
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process_listener = lldb.SBListener("signal_test_listener")
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launch_info.SetListener(process_listener)
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error = lldb.SBError()
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process = target.Launch(launch_info, error)
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self.assertTrue(process, PROCESS_IS_VALID)
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self.runCmd("process handle -n False -p True -s True SIGUSR1")
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thread = lldbutil.get_stopped_thread(
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process, lldb.eStopReasonBreakpoint)
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self.assertTrue(thread.IsValid(), "We hit the first breakpoint.")
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# After resuming the process, send it a SIGUSR1 signal.
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self.setAsync(True)
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self.assertTrue(
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process_listener.IsValid(),
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"Got a good process listener")
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# Disable our breakpoint, we don't want to hit it anymore...
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breakpoint.SetEnabled(False)
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# Now continue:
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process.Continue()
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# If running remote test, there should be a connected event
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if lldb.remote_platform:
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self.match_state(process_listener, lldb.eStateConnected)
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self.match_state(process_listener, lldb.eStateRunning)
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# Now signal the process, and make sure it stops:
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process.Signal(lldbutil.get_signal_number('SIGUSR1'))
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self.match_state(process_listener, lldb.eStateStopped)
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# Now make sure the thread was stopped with a SIGUSR1:
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threads = lldbutil.get_stopped_threads(process, lldb.eStopReasonSignal)
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self.assertEquals(len(threads), 1, "One thread stopped for a signal.")
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thread = threads[0]
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self.assertTrue(
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thread.GetStopReasonDataCount() >= 1,
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"There was data in the event.")
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self.assertTrue(
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thread.GetStopReasonDataAtIndex(0) == lldbutil.get_signal_number('SIGUSR1'),
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"The stop signal was SIGUSR1")
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def match_state(self, process_listener, expected_state):
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num_seconds = 5
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broadcaster = self.process().GetBroadcaster()
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event_type_mask = lldb.SBProcess.eBroadcastBitStateChanged
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event = lldb.SBEvent()
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got_event = process_listener.WaitForEventForBroadcasterWithType(
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num_seconds, broadcaster, event_type_mask, event)
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self.assertTrue(got_event, "Got an event")
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state = lldb.SBProcess.GetStateFromEvent(event)
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self.assertEquals(state, expected_state,
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"It was the %s state." %
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lldb.SBDebugger_StateAsCString(expected_state))
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