| """Test lldb reloads the inferior after it was changed during the session.""" |
| |
| from __future__ import print_function |
| |
| |
| import os |
| import time |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import configuration |
| from lldbsuite.test import lldbutil |
| |
| |
| class ChangedInferiorTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| @skipIf(hostoslist=["windows"]) |
| @no_debug_info_test |
| def test_inferior_crashing(self): |
| """Test lldb reloads the inferior after it was changed during the session.""" |
| self.build() |
| self.inferior_crashing() |
| self.cleanup() |
| # lldb needs to recognize the inferior has changed. If lldb needs to check the |
| # new module timestamp, make sure it is not the same as the old one, so add a |
| # 1 second delay. |
| time.sleep(1) |
| d = {'C_SOURCES': 'main2.c'} |
| self.build(dictionary=d) |
| self.setTearDownCleanup(dictionary=d) |
| self.inferior_not_crashing() |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Find the line number of the crash. |
| self.line1 = line_number('main.c', '// Crash here.') |
| self.line2 = line_number('main2.c', '// Not crash here.') |
| |
| def inferior_crashing(self): |
| """Inferior crashes upon launching; lldb should catch the event and stop.""" |
| self.exe = self.getBuildArtifact("a.out") |
| self.runCmd("file " + self.exe, CURRENT_EXECUTABLE_SET) |
| |
| self.runCmd("run", RUN_SUCCEEDED) |
| |
| # We should have one crashing thread |
| self.assertEqual( |
| len(lldbutil.get_crashed_threads(self, self.dbg.GetSelectedTarget().GetProcess())), |
| 1, |
| STOPPED_DUE_TO_EXC_BAD_ACCESS) |
| |
| # And it should report the correct line number. |
| self.expect("thread backtrace all", substrs=['main.c:%d' % self.line1]) |
| |
| def inferior_not_crashing(self): |
| """Test lldb reloads the inferior after it was changed during the session.""" |
| self.runCmd("process kill") |
| self.runCmd("run", RUN_SUCCEEDED) |
| self.runCmd("process status") |
| |
| self.assertNotEqual( |
| len(lldbutil.get_crashed_threads(self, self.dbg.GetSelectedTarget().GetProcess())), |
| 1, |
| "Inferior changed, but lldb did not perform a reload") |
| |
| # Break inside the main. |
| lldbutil.run_break_set_by_file_and_line( |
| self, "main2.c", self.line2, num_expected_locations=1, loc_exact=True) |
| |
| self.runCmd("run", RUN_SUCCEEDED) |
| |
| # The stop reason of the thread should be breakpoint. |
| self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, |
| substrs=['stopped', |
| 'stop reason = breakpoint']) |
| |
| self.runCmd("frame variable int_ptr") |
| self.expect("frame variable *int_ptr", |
| substrs=['= 7']) |
| self.expect("expression *int_ptr", |
| substrs=['= 7']) |
