| """ |
| Test thread creation after process attach. |
| """ |
| |
| 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 lldbutil |
| |
| |
| class CreateAfterAttachTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| @skipIfFreeBSD # Hangs. May be the same as Linux issue llvm.org/pr16229 but |
| # not yet investigated. Revisit once required functionality |
| # is implemented for FreeBSD. |
| # Occasionally hangs on Windows, may be same as other issues. |
| @skipIfWindows |
| @skipIfiOSSimulator |
| @expectedFailureAll(oslist=['ios', 'watchos', 'tvos', 'bridgeos'], bugnumber="<rdar://problem/34538611>") # old lldb-server has race condition, launching an inferior and then launching debugserver in quick succession sometimes fails |
| def test_create_after_attach_with_popen(self): |
| """Test thread creation after process attach.""" |
| self.build(dictionary=self.getBuildFlags(use_cpp11=False)) |
| self.create_after_attach(use_fork=False) |
| |
| @skipIfFreeBSD # Hangs. Revisit once required functionality is implemented |
| # for FreeBSD. |
| @skipIfRemote |
| @skipIfWindows # Windows doesn't have fork. |
| @skipIfiOSSimulator |
| @expectedFailureAll(oslist=['ios', 'watchos', 'tvos', 'bridgeos'], bugnumber="<rdar://problem/34538611>") # old lldb-server has race condition, launching an inferior and then launching debugserver in quick succession sometimes fails |
| def test_create_after_attach_with_fork(self): |
| """Test thread creation after process attach.""" |
| self.build(dictionary=self.getBuildFlags(use_cpp11=False)) |
| self.create_after_attach(use_fork=True) |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Find the line numbers for our breakpoints. |
| self.break_1 = line_number('main.cpp', '// Set first breakpoint here') |
| self.break_2 = line_number('main.cpp', '// Set second breakpoint here') |
| self.break_3 = line_number('main.cpp', '// Set third breakpoint here') |
| |
| def create_after_attach(self, use_fork): |
| """Test thread creation after process attach.""" |
| |
| exe = self.getBuildArtifact("a.out") |
| |
| # Spawn a new process |
| if use_fork: |
| pid = self.forkSubprocess(exe) |
| else: |
| popen = self.spawnSubprocess(exe) |
| pid = popen.pid |
| self.addTearDownHook(self.cleanupSubprocesses) |
| |
| # Attach to the spawned process |
| self.runCmd("process attach -p " + str(pid)) |
| |
| target = self.dbg.GetSelectedTarget() |
| |
| process = target.GetProcess() |
| self.assertTrue(process, PROCESS_IS_VALID) |
| |
| # This should create a breakpoint in the main thread. |
| lldbutil.run_break_set_by_file_and_line( |
| self, "main.cpp", self.break_1, num_expected_locations=1) |
| |
| # This should create a breakpoint in the second child thread. |
| lldbutil.run_break_set_by_file_and_line( |
| self, "main.cpp", self.break_2, num_expected_locations=1) |
| |
| # This should create a breakpoint in the first child thread. |
| lldbutil.run_break_set_by_file_and_line( |
| self, "main.cpp", self.break_3, num_expected_locations=1) |
| |
| # Note: With std::thread, we cannot rely on particular thread numbers. Using |
| # std::thread may cause the program to spin up a thread pool (and it does on |
| # Windows), so the thread numbers are non-deterministic. |
| |
| # Run to the first breakpoint |
| self.runCmd("continue") |
| |
| # The stop reason of the thread should be breakpoint. |
| self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, |
| substrs=['stopped', |
| '* thread #', |
| 'main', |
| 'stop reason = breakpoint']) |
| |
| # Change a variable to escape the loop |
| self.runCmd("expression main_thread_continue = 1") |
| |
| # Run to the second breakpoint |
| self.runCmd("continue") |
| |
| # The stop reason of the thread should be breakpoint. |
| self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, |
| substrs=['stopped', |
| '* thread #', |
| 'thread_2_func', |
| 'stop reason = breakpoint']) |
| |
| # Change a variable to escape the loop |
| self.runCmd("expression child_thread_continue = 1") |
| |
| # Run to the third breakpoint |
| self.runCmd("continue") |
| |
| # The stop reason of the thread should be breakpoint. |
| # Thread 3 may or may not have already exited. |
| self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, |
| substrs=['stopped', |
| '* thread #', |
| 'thread_1_func', |
| 'stop reason = breakpoint']) |
| |
| # Run to completion |
| self.runCmd("continue") |
| |
| # At this point, the inferior process should have exited. |
| self.assertTrue( |
| process.GetState() == lldb.eStateExited, |
| PROCESS_EXITED) |