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9c95617c79
These handful of tests had a BOM (Byte order mark) at the beginning of the file. This marker is unnecessary in our test files. The main motivation for this is that the `ast` python module breaks when passing a file to it with a BOM marker (and might break other tooling which doesn't expect it). E.g.,: ``` """Test that lldb command 'process signal SIGUSR1' to send a signal to the inferior works.""" ^ SyntaxError: invalid non-printable character U+FEFF ``` If anyone is aware of a good reason to keep it, happy to drop this.
104 lines
3.9 KiB
Python
104 lines
3.9 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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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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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(
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breakpoint and breakpoint.GetNumLocations() == 1, VALID_BREAKPOINT
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)
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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 location.IsEnabled(), 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(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(process_listener.IsValid(), "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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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.assertEqual(len(threads), 1, "One thread stopped for a signal.")
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thread = threads[0]
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self.assertGreaterEqual(
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thread.GetStopReasonDataCount(), 1, "There was data in the event."
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)
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self.assertEqual(
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thread.GetStopReasonDataAtIndex(0),
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lldbutil.get_signal_number("SIGUSR1"),
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"The stop signal was SIGUSR1",
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)
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self.match("statistics dump", [r'"signals": \[', r'"SIGUSR1": 1'])
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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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)
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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.assertEqual(
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state,
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expected_state,
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"It was the %s state." % lldb.SBDebugger.StateAsCString(expected_state),
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)
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