| """ |
| Test the use of setjmp/longjmp for non-local goto operations in a single-threaded inferior. |
| """ |
| |
| |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class LongjmpTestCase(TestBase): |
| @skipIfDarwin # llvm.org/pr16769: LLDB on Mac OS X dies in function ReadRegisterBytes in GDBRemoteRegisterContext.cpp |
| @expectedFailureAll(oslist=["freebsd", "linux"], bugnumber="llvm.org/pr20231") |
| @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778") |
| @expectedFlakeyNetBSD |
| def test_step_out(self): |
| """Test stepping when the inferior calls setjmp/longjmp, in particular, thread step-out.""" |
| self.build() |
| self.step_out() |
| |
| @skipIfDarwin # llvm.org/pr16769: LLDB on Mac OS X dies in function ReadRegisterBytes in GDBRemoteRegisterContext.cpp |
| @expectedFailureAll(oslist=["freebsd", "linux"], bugnumber="llvm.org/pr20231") |
| @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778") |
| @skipIfNetBSD |
| def test_step_over(self): |
| """Test stepping when the inferior calls setjmp/longjmp, in particular, thread step-over a longjmp.""" |
| self.build() |
| self.step_over() |
| |
| @skipIfDarwin # llvm.org/pr16769: LLDB on Mac OS X dies in function ReadRegisterBytes in GDBRemoteRegisterContext.cpp |
| @expectedFailureAll(oslist=["freebsd", "linux"], bugnumber="llvm.org/pr20231") |
| @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778") |
| @expectedFlakeyNetBSD |
| def test_step_back_out(self): |
| """Test stepping when the inferior calls setjmp/longjmp, in particular, thread step-out after thread step-in.""" |
| self.build() |
| self.step_back_out() |
| |
| def start_test(self, symbol): |
| exe = self.getBuildArtifact("a.out") |
| |
| self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) |
| |
| # Break in main(). |
| lldbutil.run_break_set_by_symbol(self, symbol, num_expected_locations=-1) |
| |
| 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"], |
| ) |
| |
| def check_status(self): |
| # Note: Depending on the generated mapping of DWARF to assembly, |
| # the process may have stopped or exited. |
| self.expect( |
| "process status", |
| PROCESS_STOPPED, |
| patterns=["Process .* exited with status = 0"], |
| ) |
| |
| def step_out(self): |
| self.start_test("do_jump") |
| self.runCmd("thread step-out", RUN_SUCCEEDED) |
| self.check_status() |
| |
| def step_over(self): |
| self.start_test("do_jump") |
| self.runCmd("thread step-over", RUN_SUCCEEDED) |
| self.runCmd("thread step-over", RUN_SUCCEEDED) |
| self.check_status() |
| |
| def step_back_out(self): |
| self.start_test("main") |
| |
| self.runCmd("thread step-over", RUN_SUCCEEDED) |
| self.runCmd("thread step-in", RUN_SUCCEEDED) |
| self.runCmd("thread step-out", RUN_SUCCEEDED) |
| self.check_status() |
