51 lines · python
1"""2Ensure that when the interrupt is raised we still make frame 0.3and make sure "GetNumFrames" isn't interrupted.4"""5 6import lldb7import lldbsuite.test.lldbutil as lldbutil8from lldbsuite.test.lldbtest import *9from lldbsuite.test.decorators import *10 11 12class TestInterruptingBacktrace(TestBase):13 NO_DEBUG_INFO_TESTCASE = True14 15 @skipIf(oslist=["linux"], archs=["arm$"])16 def test_backtrace_interrupt(self):17 """Use RequestInterrupt followed by stack operations18 to ensure correct interrupt behavior for stacks."""19 self.build()20 self.main_source_file = lldb.SBFileSpec("main.c")21 self.bt_interrupt_test()22 23 def bt_interrupt_test(self):24 (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(25 self, "Set a breakpoint here", self.main_source_file26 )27 28 # Now continue, and when we stop we will have crashed.29 process.Continue()30 self.dbg.RequestInterrupt()31 32 # Be sure to turn this off again:33 def cleanup():34 if self.dbg.InterruptRequested():35 self.dbg.CancelInterruptRequest()36 37 self.addTearDownHook(cleanup)38 39 frame_0 = thread.GetFrameAtIndex(0)40 self.assertTrue(frame_0.IsValid(), "Got a good 0th frame")41 # The interrupt flag is up already, so any attempt to backtrace42 # should be cut short:43 frame_1 = thread.GetFrameAtIndex(1)44 self.assertFalse(frame_1.IsValid(), "Prevented from getting more frames")45 # Since GetNumFrames is a contract, we don't interrupt it:46 num_frames = thread.GetNumFrames()47 print(f"Number of frames: {num_frames}")48 self.assertGreater(num_frames, 1, "Got many frames")49 50 self.dbg.CancelInterruptRequest()51