| """Test that we handle inferiors that send signals to themselves""" |
| |
| import os |
| import unittest2 |
| import lldb |
| from lldbtest import * |
| import lldbutil |
| import re |
| |
| |
| class RaiseTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| @skipIfWindows # signals do not exist on Windows |
| @skipUnlessDarwin |
| @dsym_test |
| @expectedFailureDarwin("llvm.org/pr23610") # process doesn't stop at a breakpoint on the third launch |
| def test_sigstop_with_dsym(self): |
| self.buildDsym() |
| 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 |
| |
| @skipIfWindows # signals do not exist on Windows |
| @dwarf_test |
| @expectedFailureDarwin("llvm.org/pr23610") # process doesn't stop at a breakpoint on the third launch |
| def test_sigstop_with_dwarf(self): |
| self.buildDwarf() |
| 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 |
| |
| @skipIfWindows # signals do not exist on Windows |
| @dwarf_test |
| @skipIfDarwin # darwin does not support real time signals |
| @skipIfTargetAndroid() |
| def test_sigsigrtmin_with_dwarf(self): |
| self.buildDwarf() |
| self.signal_test('SIGRTMIN', True) |
| |
| def launch(self, target, signal): |
| # launch the process, do not stop at entry point. |
| process = target.LaunchSimple([signal], None, self.get_process_working_directory()) |
| self.assertTrue(process, PROCESS_IS_VALID) |
| self.assertEqual(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() == True, "Setting signal handling failed") |
| |
| |
| def signal_test(self, signal, test_passing): |
| """Test that we handle inferior raising signals""" |
| exe = os.path.join(os.getcwd(), "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") |
| |
| # launch |
| process = self.launch(target, signal) |
| signo = process.GetUnixSignals().GetSignalNumberFromName(signal) |
| |
| # retrieve default signal disposition |
| return_obj = lldb.SBCommandReturnObject() |
| self.dbg.GetCommandInterpreter().HandleCommand("process handle %s " % signal, return_obj) |
| match = re.match('NAME *PASS *STOP *NOTIFY.*(false|true) *(false|true) *(false|true)', |
| return_obj.GetOutput(), re.IGNORECASE | re.DOTALL) |
| if not match: |
| self.fail('Unable to retrieve default signal disposition.') |
| default_pass = match.group(1) |
| default_stop = match.group(2) |
| default_notify = match.group(3) |
| |
| # Make sure we stop at the signal |
| self.set_handle(signal, "false", "true", "true") |
| process.Continue() |
| self.assertEqual(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.assertEqual(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. We should still get the notification. |
| self.set_handle(signal, "false", "false", "true") |
| self.expect("process continue", substrs=["stopped and restarted", signal]) |
| self.assertEqual(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. |
| self.set_handle(signal, "false", "false", "false") |
| self.expect("process continue", substrs=["stopped and restarted"], matching=False) |
| self.assertEqual(process.GetState(), lldb.eStateExited) |
| self.assertEqual(process.GetExitStatus(), 0) |
| |
| if not test_passing: |
| # reset signal handling to default |
| self.set_handle(signal, default_pass, default_stop, default_notify) |
| return |
| |
| # launch again |
| process = self.launch(target, signal) |
| |
| # Make sure we stop at the signal |
| self.set_handle(signal, "true", "true", "true") |
| process.Continue() |
| self.assertEqual(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.assertEqual(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. |
| self.set_handle(signal, "true", "false", "true") |
| self.expect("process continue", substrs=["stopped and restarted", signal]) |
| self.assertEqual(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. |
| self.set_handle(signal, "true", "false", "false") |
| self.expect("process continue", substrs=["stopped and restarted"], matching=False) |
| self.assertEqual(process.GetState(), lldb.eStateExited) |
| self.assertEqual(process.GetExitStatus(), signo) |
| |
| # reset signal handling to default |
| self.set_handle(signal, default_pass, default_stop, default_notify) |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |
