| """ |
| Test thread step-in, step-over and step-out work with the "Avoid no debug" option. |
| """ |
| |
| import os |
| import re |
| import unittest2 |
| import lldb, lldbutil |
| import sys |
| from lldbtest import * |
| |
| class ReturnValueTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| @dsym_test |
| def test_step_out_with_dsym_python(self): |
| """Test stepping out using avoid-no-debug with dsyms.""" |
| self.buildDsym() |
| self.get_to_starting_point() |
| self.do_step_out_past_nodebug() |
| |
| @python_api_test |
| @dwarf_test |
| def test_step_out_with_dwarf_python(self): |
| """Test stepping out using avoid-no-debug with dsyms.""" |
| self.buildDwarf() |
| self.get_to_starting_point() |
| self.do_step_out_past_nodebug() |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| @dsym_test |
| def test_step_over_with_dsym_python(self): |
| """Test stepping over using avoid-no-debug with dsyms.""" |
| self.buildDsym() |
| self.get_to_starting_point() |
| self.do_step_over_past_nodebug() |
| |
| @python_api_test |
| @dwarf_test |
| @skipIfLinux # intermittent failure - llvm.org/pr19247 |
| def test_step_over_with_dwarf_python(self): |
| """Test stepping over using avoid-no-debug with dwarf.""" |
| self.buildDwarf() |
| self.get_to_starting_point() |
| self.do_step_over_past_nodebug() |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| @dsym_test |
| def test_step_in_with_dsym_python(self): |
| """Test stepping in using avoid-no-debug with dsyms.""" |
| self.buildDsym() |
| self.get_to_starting_point() |
| self.do_step_in_past_nodebug() |
| |
| @python_api_test |
| @dwarf_test |
| @skipIfLinux # intermittent failure - llvm.org/pr19247 |
| def test_step_in_with_dwarf_python(self): |
| """Test stepping in using avoid-no-debug with dwarf.""" |
| self.buildDwarf() |
| self.get_to_starting_point() |
| self.do_step_in_past_nodebug() |
| |
| def setUp (self): |
| TestBase.setUp(self) |
| self.main_source = "with-debug.c" |
| self.main_source_spec = lldb.SBFileSpec("with-debug.c") |
| self.dbg.HandleCommand ("settings set target.process.thread.step-out-avoid-nodebug true") |
| |
| def tearDown (self): |
| self.dbg.HandleCommand ("settings set target.process.thread.step-out-avoid-nodebug false") |
| |
| def hit_correct_line (self, pattern): |
| target_line = line_number (self.main_source, pattern) |
| self.assertTrue (target_line != 0, "Could not find source pattern " + pattern) |
| cur_line = self.thread.frames[0].GetLineEntry().GetLine() |
| self.assertTrue (cur_line == target_line, "Stepped to line %d instead of expected %d with pattern '%s'."%(cur_line, target_line, pattern)) |
| |
| def hit_correct_function (self, pattern): |
| name = self.thread.frames[0].GetFunctionName() |
| self.assertTrue (pattern in name, "Got to '%s' not the expected function '%s'."%(name, pattern)) |
| |
| def get_to_starting_point (self): |
| exe = os.path.join(os.getcwd(), "a.out") |
| error = lldb.SBError() |
| |
| self.target = self.dbg.CreateTarget(exe) |
| self.assertTrue(self.target, VALID_TARGET) |
| |
| inner_bkpt = self.target.BreakpointCreateBySourceRegex("Stop here and step out of me", self.main_source_spec) |
| self.assertTrue(inner_bkpt, VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at entry point. |
| self.process = self.target.LaunchSimple (None, None, self.get_process_working_directory()) |
| |
| self.assertTrue(self.process, PROCESS_IS_VALID) |
| |
| # Now finish, and make sure the return value is correct. |
| threads = lldbutil.get_threads_stopped_at_breakpoint (self.process, inner_bkpt) |
| self.assertTrue(len(threads) == 1, "Stopped at inner breakpoint.") |
| self.thread = threads[0] |
| |
| def do_step_out_past_nodebug(self): |
| # The first step out takes us to the called_from_nodebug frame, just to make sure setting |
| # step-out-avoid-nodebug doesn't change the behavior in frames with debug info. |
| self.thread.StepOut() |
| self.hit_correct_line ("intermediate_return_value = called_from_nodebug_actual(some_value)") |
| self.thread.StepOut() |
| self.hit_correct_line ("int return_value = no_debug_caller(5, called_from_nodebug)") |
| |
| def do_step_over_past_nodebug (self): |
| self.thread.StepOver() |
| self.hit_correct_line ("intermediate_return_value = called_from_nodebug_actual(some_value)") |
| self.thread.StepOver() |
| self.hit_correct_line ("return intermediate_return_value") |
| self.thread.StepOver() |
| # Note, lldb doesn't follow gdb's distinction between "step-out" and "step-over/step-in" |
| # when exiting a frame. In all cases we leave the pc at the point where we exited the |
| # frame. In gdb, step-over/step-in move to the end of the line they stepped out to. |
| # If we ever change this we will need to fix this test. |
| self.hit_correct_line ("int return_value = no_debug_caller(5, called_from_nodebug)") |
| |
| def do_step_in_past_nodebug (self): |
| self.thread.StepInto() |
| self.hit_correct_line ("intermediate_return_value = called_from_nodebug_actual(some_value)") |
| self.thread.StepInto() |
| self.hit_correct_line ("return intermediate_return_value") |
| self.thread.StepInto() |
| # Note, lldb doesn't follow gdb's distinction between "step-out" and "step-over/step-in" |
| # when exiting a frame. In all cases we leave the pc at the point where we exited the |
| # frame. In gdb, step-over/step-in move to the end of the line they stepped out to. |
| # If we ever change this we will need to fix this test. |
| self.hit_correct_line ("int return_value = no_debug_caller(5, called_from_nodebug)") |
| |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |
