64 lines
2.5 KiB
Python
64 lines
2.5 KiB
Python
from __future__ import print_function
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import lldb
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test.decorators import *
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from gdbclientutils import *
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class TestRestartBug(GDBRemoteTestBase):
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@expectedFailureAll(bugnumber="llvm.org/pr24530")
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@skipIfReproducer # FIXME: Unexpected packet during (passive) replay
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def test(self):
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"""
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Test auto-continue behavior when a process is interrupted to deliver
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an "asynchronous" packet. This simulates the situation when a process
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stops on its own just as lldb client is about to interrupt it. The
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client should not auto-continue in this case, unless the user has
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explicitly requested that we ignore signals of this type.
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"""
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class MyResponder(MockGDBServerResponder):
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continueCount = 0
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def setBreakpoint(self, packet):
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return "OK"
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def interrupt(self):
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# Simulate process stopping due to a raise(SIGINT) just as lldb
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# is about to interrupt it.
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return "T02reason:signal"
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def cont(self):
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self.continueCount += 1
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if self.continueCount == 1:
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# No response, wait for the client to interrupt us.
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return None
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return "W00" # Exit
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self.server.responder = MyResponder()
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target = self.createTarget("a.yaml")
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process = self.connect(target)
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self.dbg.SetAsync(True)
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process.Continue()
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# resume the process and immediately try to set another breakpoint. When using the remote
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# stub, this will trigger a request to stop the process. Make sure we
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# do not lose this signal.
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bkpt = target.BreakpointCreateByAddress(0x1234)
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self.assertTrue(bkpt.IsValid())
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self.assertEqual(bkpt.GetNumLocations(), 1)
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event = lldb.SBEvent()
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while self.dbg.GetListener().WaitForEvent(2, event):
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if self.TraceOn():
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print("Process changing state to:",
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self.dbg.StateAsCString(process.GetStateFromEvent(event)))
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if process.GetStateFromEvent(event) == lldb.eStateExited:
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break
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# We should get only one continue packet as the client should not
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# auto-continue after setting the breakpoint.
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self.assertEqual(self.server.responder.continueCount, 1)
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# And the process should end up in the stopped state.
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self.assertEqual(process.GetState(), lldb.eStateStopped)
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