113 lines · python
1"""2Test that the run locker really does work to keep3us from running SB API that should only be run4while stopped. This test is mostly concerned with5what happens between launch and first stop.6"""7 8import lldb9import lldbsuite.test.lldbutil as lldbutil10from lldbsuite.test.decorators import *11from lldbsuite.test.lldbtest import *12 13 14class TestRunLocker(TestBase):15 NO_DEBUG_INFO_TESTCASE = True16 17 @expectedFailureAll(oslist=["windows"])18 # Is flaky on Linux AArch64 buildbot.19 @skipIf(oslist=["linux"], archs=["aarch64"])20 def test_run_locker(self):21 """Test that the run locker is set correctly when we launch"""22 self.build()23 self.runlocker_test(False)24 25 @expectedFailureAll(oslist=["windows"])26 # Is flaky on Linux AArch64 buildbot.27 @skipIf(oslist=["linux"], archs=["aarch64"])28 def test_run_locker_stop_at_entry(self):29 """Test that the run locker is set correctly when we launch"""30 self.build()31 self.runlocker_test(False)32 33 def setUp(self):34 # Call super's setUp().35 TestBase.setUp(self)36 self.main_source_file = lldb.SBFileSpec("main.c")37 38 def runlocker_test(self, stop_at_entry):39 """The code to stop at entry handles events slightly differently, so40 we test both versions of process launch."""41 42 target = lldbutil.run_to_breakpoint_make_target(self)43 44 launch_info = target.GetLaunchInfo()45 if stop_at_entry:46 flags = launch_info.GetFlags()47 launch_info.SetFlags(flags | lldb.eLaunchFlagStopAtEntry)48 49 error = lldb.SBError()50 # We are trying to do things when the process is running, so51 # we have to run the debugger asynchronously.52 self.dbg.SetAsync(True)53 54 listener = lldb.SBListener("test-run-lock-listener")55 launch_info.SetListener(listener)56 process = target.Launch(launch_info, error)57 self.assertSuccess(error, "Launched the process")58 59 event = lldb.SBEvent()60 61 event_result = listener.WaitForEvent(10, event)62 self.assertTrue(event_result, "timed out waiting for launch")63 state_type = lldb.SBProcess.GetStateFromEvent(event)64 # We don't always see a launching...65 if state_type == lldb.eStateLaunching:66 event_result = listener.WaitForEvent(10, event)67 self.assertTrue(68 event_result, "Timed out waiting for running after launching"69 )70 state_type = lldb.SBProcess.GetStateFromEvent(event)71 72 self.assertState(state_type, lldb.eStateRunning, "Didn't get a running event")73 74 # We aren't checking the entry state, but just making sure75 # the running state is set properly if we continue in this state.76 77 if stop_at_entry:78 event_result = listener.WaitForEvent(10, event)79 self.assertTrue(event_result, "Timed out waiting for stop at entry stop")80 state_type = lldb.SBProcess.GetStateFromEvent(event)81 self.assertState(state_type, eStateStopped, "Stop at entry stopped")82 process.Continue()83 84 # Okay, now the process is running, make sure we can't do things85 # you aren't supposed to do while running, and that we get some86 # actual error:87 val = target.EvaluateExpression("SomethingToCall()")88 # There was a bug [#93313] in the printing that would cause repr to crash, so I'm89 # testing that separately.90 self.assertIn(91 "can't evaluate expressions when the process is running",92 repr(val),93 "repr works"94 )95 error = val.GetError()96 self.assertTrue(error.Fail(), "Failed to run expression")97 self.assertIn(98 "can't evaluate expressions when the process is running",99 error.GetCString(),100 "Stopped by stop locker",101 )102 103 # This should also fail if we try to use the script interpreter directly:104 interp = self.dbg.GetCommandInterpreter()105 result = lldb.SBCommandReturnObject()106 ret = interp.HandleCommand(107 "script var = lldb.frame.EvaluateExpression('SomethingToCall()'); var.GetError().GetCString()",108 result,109 )110 self.assertIn(111 "can't evaluate expressions when the process is running", result.GetOutput()112 )113