| """Test that we handle inferiors that send signals to themselves""" |
| |
| |
| import lldb |
| import re |
| from lldbsuite.test.lldbplatformutil import getDarwinOSTriples |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| @skipIfWindows # signals do not exist on Windows |
| class RaiseTestCase(TestBase): |
| NO_DEBUG_INFO_TESTCASE = True |
| |
| @skipIfNetBSD # Hangs on NetBSD |
| def test_sigstop(self): |
| self.build() |
| self.signal_test("SIGSTOP", False) |
| # passing of SIGSTOP is not correctly handled, so not testing that |
| # scenario: https://llvm.org/bugs/show_bug.cgi?id=23574 |
| |
| @skipIfDarwin # darwin does not support real time signals |
| @skipIfTargetAndroid() |
| def test_sigsigrtmin(self): |
| self.build() |
| self.signal_test("SIGRTMIN", True) |
| |
| @skipIfNetBSD # Hangs on NetBSD |
| def test_sigtrap(self): |
| self.build() |
| self.signal_test("SIGTRAP", True) |
| |
| def launch(self, target, signal): |
| # launch the process, do not stop at entry point. |
| # If we have gotten the default for this signal, reset that as well. |
| if len(self.default_pass) != 0: |
| lldbutil.set_actions_for_signal( |
| self, signal, self.default_pass, self.default_stop, self.default_notify |
| ) |
| |
| process = target.LaunchSimple( |
| [signal], None, self.get_process_working_directory() |
| ) |
| self.assertTrue(process, PROCESS_IS_VALID) |
| self.assertState(process.GetState(), lldb.eStateStopped) |
| thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint) |
| self.assertTrue( |
| thread.IsValid(), "Thread should be stopped due to a breakpoint" |
| ) |
| return process |
| |
| def set_handle(self, signal, pass_signal, stop_at_signal, notify_signal): |
| return_obj = lldb.SBCommandReturnObject() |
| self.dbg.GetCommandInterpreter().HandleCommand( |
| "process handle %s -p %s -s %s -n %s" |
| % (signal, pass_signal, stop_at_signal, notify_signal), |
| return_obj, |
| ) |
| self.assertTrue(return_obj.Succeeded(), "Setting signal handling failed") |
| |
| def signal_test(self, signal, test_passing): |
| """Test that we handle inferior raising signals""" |
| exe = self.getBuildArtifact("a.out") |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| lldbutil.run_break_set_by_symbol(self, "main") |
| self.default_pass = "" |
| self.default_stop = "" |
| self.default_notify = "" |
| |
| # launch |
| process = self.launch(target, signal) |
| signo = process.GetUnixSignals().GetSignalNumberFromName(signal) |
| |
| # retrieve default signal disposition |
| ( |
| self.default_pass, |
| self.default_stop, |
| self.default_notify, |
| ) = lldbutil.get_actions_for_signal(self, signal) |
| |
| # Make sure we stop at the signal |
| lldbutil.set_actions_for_signal(self, signal, "false", "true", "true") |
| process.Continue() |
| self.assertState(process.GetState(), lldb.eStateStopped) |
| thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal) |
| self.assertTrue(thread.IsValid(), "Thread should be stopped due to a signal") |
| self.assertTrue( |
| thread.GetStopReasonDataCount() >= 1, "There was data in the event." |
| ) |
| self.assertEqual( |
| thread.GetStopReasonDataAtIndex(0), signo, "The stop signal was %s" % signal |
| ) |
| |
| # Continue until we exit. |
| process.Continue() |
| self.assertState(process.GetState(), lldb.eStateExited) |
| self.assertEqual(process.GetExitStatus(), 0) |
| |
| process = self.launch(target, signal) |
| |
| # Make sure we do not stop at the signal. We should still get the |
| # notification. |
| lldbutil.set_actions_for_signal(self, signal, "false", "false", "true") |
| self.expect("process continue", substrs=["stopped and restarted", signal]) |
| self.assertState(process.GetState(), lldb.eStateExited) |
| self.assertEqual(process.GetExitStatus(), 0) |
| |
| # launch again |
| process = self.launch(target, signal) |
| |
| # Make sure we do not stop at the signal, and we do not get the |
| # notification. |
| lldbutil.set_actions_for_signal(self, signal, "false", "false", "false") |
| self.expect( |
| "process continue", substrs=["stopped and restarted"], matching=False |
| ) |
| self.assertState(process.GetState(), lldb.eStateExited) |
| self.assertEqual(process.GetExitStatus(), 0) |
| |
| if not test_passing: |
| # reset signal handling to default |
| lldbutil.set_actions_for_signal( |
| self, signal, self.default_pass, self.default_stop, self.default_notify |
| ) |
| return |
| |
| # launch again |
| process = self.launch(target, signal) |
| |
| # Make sure we stop at the signal |
| lldbutil.set_actions_for_signal(self, signal, "true", "true", "true") |
| process.Continue() |
| self.assertState(process.GetState(), lldb.eStateStopped) |
| thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal) |
| self.assertTrue(thread.IsValid(), "Thread should be stopped due to a signal") |
| self.assertTrue( |
| thread.GetStopReasonDataCount() >= 1, "There was data in the event." |
| ) |
| self.assertEqual( |
| thread.GetStopReasonDataAtIndex(0), |
| process.GetUnixSignals().GetSignalNumberFromName(signal), |
| "The stop signal was %s" % signal, |
| ) |
| |
| # Continue until we exit. The process should receive the signal. |
| process.Continue() |
| self.assertState(process.GetState(), lldb.eStateExited) |
| self.assertEqual(process.GetExitStatus(), signo) |
| |
| # launch again |
| process = self.launch(target, signal) |
| |
| # Make sure we do not stop at the signal. We should still get the notification. Process |
| # should receive the signal. |
| lldbutil.set_actions_for_signal(self, signal, "true", "false", "true") |
| self.expect("process continue", substrs=["stopped and restarted", signal]) |
| self.assertState(process.GetState(), lldb.eStateExited) |
| self.assertEqual(process.GetExitStatus(), signo) |
| |
| # launch again |
| process = self.launch(target, signal) |
| |
| # Make sure we do not stop at the signal, and we do not get the notification. Process |
| # should receive the signal. |
| lldbutil.set_actions_for_signal(self, signal, "true", "false", "false") |
| self.expect( |
| "process continue", substrs=["stopped and restarted"], matching=False |
| ) |
| self.assertState(process.GetState(), lldb.eStateExited) |
| self.assertEqual(process.GetExitStatus(), signo) |
| |
| # reset signal handling to default |
| lldbutil.set_actions_for_signal( |
| self, signal, self.default_pass, self.default_stop, self.default_notify |
| ) |
