| """Test stepping over and into inlined functions.""" |
| |
| import os, time |
| import unittest2 |
| import lldb |
| import lldbutil |
| from lldbtest import * |
| |
| class TestInlineStepping(TestBase): |
| |
| mydir = os.path.join("functionalities", "inline-stepping") |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| @dsym_test |
| def test_with_dsym_and_python_api(self): |
| """Test stepping over and into inlined functions.""" |
| self.buildDsym() |
| self.inline_stepping() |
| |
| @python_api_test |
| @dwarf_test |
| @expectedFailureIcc # Not really a bug. ICC combines two inlined functions. |
| def test_with_dwarf_and_python_api(self): |
| """Test stepping over and into inlined functions.""" |
| self.buildDwarf() |
| self.inline_stepping() |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| @dsym_test |
| def test_step_over_with_dsym_and_python_api(self): |
| """Test stepping over and into inlined functions.""" |
| self.buildDsym() |
| self.inline_stepping_step_over() |
| |
| @python_api_test |
| @dwarf_test |
| def test_step_over_with_dwarf_and_python_api(self): |
| """Test stepping over and into inlined functions.""" |
| self.buildDwarf() |
| self.inline_stepping_step_over() |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Find the line numbers that we will step to in main: |
| self.main_source = "calling.cpp" |
| self.source_lines = {} |
| functions = ['caller_ref_1', 'caller_ref_2', 'inline_ref_1', 'inline_ref_2', 'called_by_inline_ref', 'caller_trivial_1', 'caller_trivial_2', 'inline_trivial_1', 'inline_trivial_2', 'called_by_inline_trivial' ] |
| for name in functions: |
| self.source_lines[name] = line_number(self.main_source, "// In " + name + ".") |
| self.main_source_spec = lldb.SBFileSpec (self.main_source) |
| |
| def do_step(self, step_type, destination_line_entry): |
| expected_stack_depth = self.thread.GetNumFrames() |
| if step_type == "into": |
| expected_stack_depth += 1 |
| self.thread.StepInto() |
| elif step_type == "out": |
| expected_stack_depth -= 1 |
| self.thread.StepOut() |
| elif step_type == "over": |
| self.thread.StepOver() |
| else: |
| self.fail ("Unrecognized step type: " + step_type) |
| |
| threads = lldbutil.get_stopped_threads (self.process, lldb.eStopReasonPlanComplete) |
| if len(threads) != 1: |
| destination_description = lldb.SBStream() |
| destination_line_entry.GetDescription(destination_description) |
| self.fail ("Failed to stop due to step " + step_type + " operation stepping to: " + destination_description.GetData()) |
| |
| self.thread = threads[0] |
| |
| stop_line_entry = self.thread.GetFrameAtIndex(0).GetLineEntry() |
| self.assertTrue (stop_line_entry.IsValid(), "Stop line entry was not valid.") |
| |
| # Don't use the line entry equal operator because we don't care about the column number. |
| stop_at_right_place = (stop_line_entry.GetFileSpec() == destination_line_entry.GetFileSpec() and stop_line_entry.GetLine() == destination_line_entry.GetLine()) |
| if stop_at_right_place == False: |
| destination_description = lldb.SBStream() |
| destination_line_entry.GetDescription(destination_description) |
| |
| actual_description = lldb.SBStream() |
| stop_line_entry.GetDescription(actual_description) |
| |
| self.fail ("Step " + step_type + " stopped at wrong place: expected: " + destination_description.GetData() + " got: " + actual_description.GetData() + ".") |
| |
| real_stack_depth = self.thread.GetNumFrames() |
| |
| if real_stack_depth != expected_stack_depth: |
| destination_description = lldb.SBStream() |
| destination_line_entry.GetDescription(destination_description) |
| self.fail ("Step %s to %s got wrong number of frames, should be: %d was: %d."%(step_type, destination_description.GetData(), expected_stack_depth, real_stack_depth)) |
| |
| def run_step_sequence(self, step_sequence): |
| """This function takes a list of duples instructing how to run the program. The first element in each duple is |
| a source pattern for the target location, and the second is the operation that will take you from the current |
| source location to the target location. It will then run all the steps in the sequence. |
| It will check that you arrived at the expected source location at each step, and that the stack depth changed |
| correctly for the operation in the sequence.""" |
| |
| target_line_entry = lldb.SBLineEntry() |
| target_line_entry.SetFileSpec(self.main_source_spec) |
| |
| for step_pattern in step_sequence: |
| step_stop_line = line_number (self.main_source, step_pattern[0]) |
| target_line_entry.SetLine(step_stop_line) |
| self.do_step (step_pattern[1], target_line_entry) |
| |
| |
| def inline_stepping(self): |
| """Use Python APIs to test stepping over and hitting breakpoints.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| break_1_in_main = target.BreakpointCreateBySourceRegex ('// Stop here and step over to set up stepping over.', self.main_source_spec) |
| self.assertTrue(break_1_in_main, VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at entry point. |
| self.process = target.LaunchSimple (None, None, os.getcwd()) |
| |
| self.assertTrue(self.process, PROCESS_IS_VALID) |
| |
| # The stop reason of the thread should be breakpoint. |
| threads = lldbutil.get_threads_stopped_at_breakpoint (self.process, break_1_in_main) |
| |
| if len(threads) != 1: |
| self.fail ("Failed to stop at first breakpoint in main.") |
| |
| self.thread = threads[0] |
| |
| # Step over the inline_value = 0 line to get us to inline_trivial_1 called from main. Doing it this way works |
| # around a bug in lldb where the breakpoint on the containing line of an inlined function with no return value |
| # gets set past the insertion line in the function. |
| # Then test stepping over a simple inlined function. Note, to test all the parts of the inlined stepping |
| # the calls inline_stepping_1 and inline_stepping_2 should line up at the same address, that way we will test |
| # the "virtual" stepping. |
| # FIXME: Put in a check to see if that is true and warn if it is not. |
| |
| step_sequence = [["// At inline_trivial_1 called from main.", "over"], |
| ["// At first call of caller_trivial_1 in main.", "over"]] |
| self.run_step_sequence(step_sequence) |
| |
| # Now step from caller_ref_1 all the way into called_by_inline_trivial |
| |
| step_sequence = [["// In caller_trivial_1.", "into"], |
| ["// In caller_trivial_2.", "into"], |
| ["// In inline_trivial_1.", "into"], |
| ["// In inline_trivial_2.", "into"], |
| ["// At caller_by_inline_trivial in inline_trivial_2.", "over"], |
| ["// In called_by_inline_trivial.", "into"]] |
| self.run_step_sequence(step_sequence) |
| |
| # Now run to the inline_trivial_1 just before the immediate step into inline_trivial_2: |
| |
| break_2_in_main = target.BreakpointCreateBySourceRegex ('// At second call of caller_trivial_1 in main.', self.main_source_spec) |
| self.assertTrue(break_2_in_main, VALID_BREAKPOINT) |
| |
| threads = lldbutil.continue_to_breakpoint (self.process, break_2_in_main) |
| self.assertTrue (len(threads) == 1, "Successfully ran to call site of second caller_trivial_1 call.") |
| self.thread = threads[0] |
| |
| step_sequence = [["// In caller_trivial_1.", "into"], |
| ["// In caller_trivial_2.", "into"], |
| ["// In inline_trivial_1.", "into"]] |
| self.run_step_sequence(step_sequence) |
| |
| # Then call some trivial function, and make sure we end up back where we were in the inlined call stack: |
| |
| frame = self.thread.GetFrameAtIndex(0) |
| before_line_entry = frame.GetLineEntry() |
| value = frame.EvaluateExpression ("function_to_call()") |
| after_line_entry = frame.GetLineEntry() |
| |
| self.assertTrue (before_line_entry.GetLine() == after_line_entry.GetLine(), "Line entry before and after function calls are the same.") |
| |
| # Now make sure stepping OVER in the middle of the stack works, and then check finish from the inlined frame: |
| |
| step_sequence = [["// At increment in inline_trivial_1.", "over"], |
| ["// At increment in caller_trivial_2.", "out"]] |
| self.run_step_sequence(step_sequence) |
| |
| |
| # Now run to the place in main just before the first call to caller_ref_1: |
| |
| break_3_in_main = target.BreakpointCreateBySourceRegex ('// At first call of caller_ref_1 in main.', self.main_source_spec) |
| self.assertTrue(break_3_in_main, VALID_BREAKPOINT) |
| |
| threads = lldbutil.continue_to_breakpoint (self.process, break_3_in_main) |
| self.assertTrue (len(threads) == 1, "Successfully ran to call site of first caller_ref_1 call.") |
| self.thread = threads[0] |
| |
| step_sequence = [["// In caller_ref_1.", "into"], |
| ["// In caller_ref_2.", "into"], |
| ["// In inline_ref_1.", "into"], |
| ["// In inline_ref_2.", "into"], |
| ["// In called_by_inline_ref.", "into"], |
| ["// In inline_ref_2.", "out"], |
| ["// In inline_ref_1.", "out"], |
| ["// At increment in inline_ref_1.", "over"], |
| ["// In caller_ref_2.", "out"], |
| ["// At increment in caller_ref_2.", "over"]] |
| self.run_step_sequence (step_sequence) |
| |
| def inline_stepping_step_over(self): |
| """Use Python APIs to test stepping over and hitting breakpoints.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| break_1_in_main = target.BreakpointCreateBySourceRegex ('// At second call of caller_ref_1 in main.', self.main_source_spec) |
| self.assertTrue(break_1_in_main, VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at entry point. |
| self.process = target.LaunchSimple (None, None, os.getcwd()) |
| |
| self.assertTrue(self.process, PROCESS_IS_VALID) |
| |
| # The stop reason of the thread should be breakpoint. |
| threads = lldbutil.get_threads_stopped_at_breakpoint (self.process, break_1_in_main) |
| |
| if len(threads) != 1: |
| self.fail ("Failed to stop at first breakpoint in main.") |
| |
| self.thread = threads[0] |
| |
| step_sequence = [["// In caller_ref_1.", "into"], |
| ["// In caller_ref_2.", "into"], |
| ["// At increment in caller_ref_2.", "over"]] |
| self.run_step_sequence (step_sequence) |
| |
| |
| |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |
