77 lines · python
1import lldb2from lldbsuite.test.decorators import *3from lldbsuite.test.lldbtest import *4from lldbsuite.test import lldbutil5 6import re7 8@skipIf(macos_version=[">=", "15.4"], asan=True)9class LibCxxInternalsRecognizerTestCase(TestBase):10 NO_DEBUG_INFO_TESTCASE = True11 12 @add_test_categories(["libc++"])13 @skipIf(compiler="clang", compiler_version=["<", "21.0"])14 def test_frame_recognizer(self):15 """Test that implementation details of libc++ are hidden"""16 self.build()17 (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(18 self, "break here", lldb.SBFileSpec("main.cpp")19 )20 21 expected_parents = {22 "sort_less(int, int)": ["::sort", "test_algorithms"],23 # `std::ranges::sort` is implemented as an object of types `__sort`.24 # We never hide the frame of the entry-point into the standard library, even25 # if the name starts with `__` which usually indicates an internal function.26 "ranges_sort_less(int, int)": [27 re.compile(r"ranges::__sort::(__fn::)?operator\(\)"),28 "test_algorithms",29 ],30 # `ranges::views::transform` internally uses `std::invoke`, and that31 # call also shows up in the stack trace32 "view_transform(int)": [33 "::invoke",34 "ranges::transform_view",35 "test_algorithms",36 ],37 # Various types of `invoke` calls38 "consume_number(int)": ["::invoke", "test_invoke"],39 "invoke_add(int, int)": ["::invoke", "test_invoke"],40 "Callable::member_function(int) const": ["::invoke", "test_invoke"],41 "Callable::operator()(int) const": ["::invoke", "test_invoke"],42 # Containers43 "MyKey::operator<(MyKey const&) const": [44 "::operator()",45 "less",46 "::emplace",47 "test_containers",48 ],49 }50 stop_set = set()51 while process.GetState() != lldb.eStateExited:52 fn = thread.GetFrameAtIndex(0).GetFunctionName()53 stop_set.add(fn)54 self.assertIn(fn, expected_parents.keys())55 frame_id = 156 for expected_parent in expected_parents[fn]:57 # Skip all hidden frames58 while (59 frame_id < thread.GetNumFrames()60 and thread.GetFrameAtIndex(frame_id).IsHidden()61 ):62 frame_id = frame_id + 163 # Expect the correct parent frame64 func_name = thread.GetFrameAtIndex(frame_id).GetFunctionName()65 if isinstance(expected_parent, re.Pattern):66 self.assertTrue(67 expected_parent.search(func_name) is not None,68 f"'{expected_parent}' not found in '{func_name}'"69 )70 else:71 self.assertIn(expected_parent, func_name)72 frame_id = frame_id + 173 process.Continue()74 75 # Make sure that we actually verified all intended scenarios76 self.assertEqual(len(stop_set), len(expected_parents))77