| """Test that we can unwind out of a SIGABRT handler""" |
| |
| |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class HandleAbortTestCase(TestBase): |
| NO_DEBUG_INFO_TESTCASE = True |
| |
| @skipIfWindows # signals do not exist on Windows |
| @expectedFailureNetBSD |
| def test_inferior_handle_sigabrt(self): |
| """Inferior calls abort() and handles the resultant SIGABRT. |
| Stopped at a breakpoint in the handler, verify that the backtrace |
| includes the function that called abort().""" |
| self.build() |
| exe = self.getBuildArtifact("a.out") |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| # launch |
| process = target.LaunchSimple(None, None, self.get_process_working_directory()) |
| self.assertTrue(process, PROCESS_IS_VALID) |
| self.assertState(process.GetState(), lldb.eStateStopped) |
| signo = process.GetUnixSignals().GetSignalNumberFromName("SIGABRT") |
| |
| thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal) |
| self.assertTrue( |
| thread and thread.IsValid(), "Thread should be stopped due to a signal" |
| ) |
| self.assertTrue( |
| thread.GetStopReasonDataCount() >= 1, "There should be data in the event." |
| ) |
| self.assertEqual( |
| thread.GetStopReasonDataAtIndex(0), |
| signo, |
| "The stop signal should be SIGABRT", |
| ) |
| |
| # Continue to breakpoint in abort handler |
| bkpt = target.FindBreakpointByID( |
| lldbutil.run_break_set_by_source_regexp(self, "Set a breakpoint here") |
| ) |
| threads = lldbutil.continue_to_breakpoint(process, bkpt) |
| self.assertEqual(len(threads), 1, "Expected single thread") |
| thread = threads[0] |
| |
| # Expect breakpoint in 'handler' |
| frame = thread.GetFrameAtIndex(0) |
| self.assertEqual(frame.GetDisplayFunctionName(), "handler", "Unexpected break?") |
| |
| # Expect that unwinding should find 'abort_caller' |
| foundFoo = False |
| for frame in thread: |
| if frame.GetDisplayFunctionName() == "abort_caller": |
| foundFoo = True |
| |
| self.assertTrue(foundFoo, "Unwinding did not find func that called abort") |
| |
| # Continue until we exit. |
| process.Continue() |
| self.assertState(process.GetState(), lldb.eStateExited) |
| self.assertEqual(process.GetExitStatus(), 0) |