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95c453a221
For convenience, we had added the folder that dotest.py was in to sys.path, so that we could easily write things like `import lldbutil` from anywhere and any test. This introduces a subtle problem when using Python's package system, because when unittest2 imports a particular test suite, the test suite is detached from the package. Thus, writing "import lldbutil" from dotest imports it as part of the package, and writing the same line from a test does a fresh import since the importing module was not part of the same package. The real way to fix this is to use absolute imports everywhere. Instead of writing "import lldbutil", we need to write "import lldbsuite.test.util". This patch fixes up that and all other similar cases, and additionally removes the script directory from sys.path to ensure that this can't happen again. llvm-svn: 251886
106 lines
4.1 KiB
Python
106 lines
4.1 KiB
Python
"""Test that lldb command 'process signal SIGUSR1' to send a signal to the inferior works."""
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from __future__ import print_function
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import use_lldb_suite
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import os, time, signal
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import lldb
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from lldbsuite.test.lldbtest import *
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import lldbsuite.test.lldbutil as 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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@expectedFailureFreeBSD("llvm.org/pr23318: does not report running state")
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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 = 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 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 = lldb.SBLaunchInfo([exe])
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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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# 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.assertTrue(len(threads) == 1, "One thread stopped for a signal.")
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thread = threads[0]
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self.assertTrue(thread.GetStopReasonDataCount() >= 1, "There was data in the event.")
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self.assertTrue(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.assertTrue(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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