2aed0d9cd3
We had to disable the tests for libc++ <= 15 because the `std::ranges` functions were not available, yet. Also, on libc++17 there was still an additional `__fn` struct withing `ranges::__sort`. The test expectation was updated to use a regular expression, so we can match both the old and the new name. See https://green.lab.llvm.org/job/llvm.org/view/LLDB/job/lldb-cmake-matrix/912/execution/node/107/log/
75 lines
3.1 KiB
Python
75 lines
3.1 KiB
Python
import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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import re
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class LibCxxInternalsRecognizerTestCase(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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@add_test_categories(["libc++"])
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@skipIf(compiler="clang", compiler_version=["<", "16.0"])
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def test_frame_recognizer(self):
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"""Test that implementation details of libc++ are hidden"""
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self.build()
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(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
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self, "break here", lldb.SBFileSpec("main.cpp")
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)
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expected_parents = {
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"sort_less(int, int)": ["::sort", "test_algorithms"],
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# `std::ranges::sort` is implemented as an object of types `__sort`.
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# We never hide the frame of the entry-point into the standard library, even
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# if the name starts with `__` which usually indicates an internal function.
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"ranges_sort_less(int, int)": [
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re.compile("ranges::__sort::(__fn::)?operator\(\)"),
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"test_algorithms",
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],
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# `ranges::views::transform` internally uses `std::invoke`, and that
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# call also shows up in the stack trace
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"view_transform(int)": [
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"::invoke",
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"ranges::transform_view",
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"test_algorithms",
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],
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# Various types of `invoke` calls
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"consume_number(int)": ["::invoke", "test_invoke"],
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"invoke_add(int, int)": ["::invoke", "test_invoke"],
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"Callable::member_function(int) const": ["::invoke", "test_invoke"],
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"Callable::operator()(int) const": ["::invoke", "test_invoke"],
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# Containers
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"MyKey::operator<(MyKey const&) const": [
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"less",
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"::emplace",
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"test_containers",
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],
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}
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stop_set = set()
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while process.GetState() != lldb.eStateExited:
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fn = thread.GetFrameAtIndex(0).GetFunctionName()
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stop_set.add(fn)
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self.assertIn(fn, expected_parents.keys())
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frame_id = 1
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for expected_parent in expected_parents[fn]:
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# Skip all hidden frames
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while (
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frame_id < thread.GetNumFrames()
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and thread.GetFrameAtIndex(frame_id).IsHidden()
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):
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frame_id = frame_id + 1
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# Expect the correct parent frame
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func_name = thread.GetFrameAtIndex(frame_id).GetFunctionName()
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if isinstance(expected_parent, re.Pattern):
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self.assertTrue(
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expected_parent.search(func_name) is not None,
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f"'{expected_parent}' not found in '{func_name}'"
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)
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else:
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self.assertIn(expected_parent, func_name)
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frame_id = frame_id + 1
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process.Continue()
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# Make sure that we actually verified all intended scenarios
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self.assertEqual(len(stop_set), len(expected_parents))
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