faf070f062
Skip tests that require `-gstructor-decl-linkage-names` on Clang versions that don't support it.
Don't pass `-gno-structor-decl-linkage-names` on Clang versions where it the flag didn't exist but it was the default behaviour of the compiler anyway.
Drive-by:
- We used to run `self.expect("Bar()")` which would always fail. So the `error=True` would be true even if we didn't pass the `-gno-structor-linkage-names`. So it wasn't testing the behaviour properly. This patch changes these to `self.expect("expr Bar()")`.
115 lines
4.1 KiB
Python
115 lines
4.1 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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class ExprDefinitionInDylibTestCase(TestBase):
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@skipIf(
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compiler="clang",
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compiler_version=["<", "22"],
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bugnumber="Required Clang flag not supported",
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)
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@skipIfWindows
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def test_with_structor_linkage_names(self):
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"""
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Tests that we can call functions whose definition
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is in a different LLDB module than it's declaration.
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"""
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self.build(dictionary={"CXXFLAGS_EXTRAS": "-gstructor-decl-linkage-names"})
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target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
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self.assertTrue(target, VALID_TARGET)
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env = self.registerSharedLibrariesWithTarget(target, ["lib"])
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breakpoint = lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", line_number("main.cpp", "return")
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)
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process = target.LaunchSimple(None, env, self.get_process_working_directory())
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self.assertIsNotNone(
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lldbutil.get_one_thread_stopped_at_breakpoint_id(self.process(), breakpoint)
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)
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self.expect_expr("f.method()", result_value="-72", result_type="int")
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self.expect_expr("Foo(10)", result_type="Foo")
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self.expect_expr("Base()", result_type="Base")
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self.expect_expr("Bar()", result_type="Bar")
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# Test a more complex setup: expression that has a three bases:
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# 1. definition is in local module
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# 2. definition is in different module
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# 3. definition is in expression context (and has it's own virtual base)
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self.expect_expr(
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"struct ExprBase : virtual Foo { int z; ExprBase() : Foo(11) { z = x; } }; struct Expr : virtual Local, virtual Foo, virtual ExprBase { int w; Expr() : Local(), Foo(12), ExprBase() { w = y; } }; Expr tmp; tmp",
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result_type="Expr",
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result_children=[
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ValueCheck(
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name="Local",
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children=[
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ValueCheck(
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name="Foo", children=[ValueCheck(name="x", value="12")]
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),
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ValueCheck(name="y", value="12"),
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],
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),
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ValueCheck(name="Foo", children=[ValueCheck(name="x", value="12")]),
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ValueCheck(
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name="ExprBase",
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children=[
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ValueCheck(
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name="Foo", children=[ValueCheck(name="x", value="12")]
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),
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ValueCheck(name="z", value="12"),
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],
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),
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ValueCheck(name="w", value="12"),
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],
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)
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@skipIfWindows
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def test_no_structor_linkage_names(self):
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"""
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Tests that if structor declarations don't have linkage names, we can't
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call ABI-tagged constructors. But non-tagged ones are fine.
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"""
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# In older versions of Clang the -gno-structor-decl-linkage-names
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# behaviour was the default.
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if self.expectedCompiler(["clang"]) and self.expectedCompilerVersion(
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[">=", "22.0"]
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):
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self.build(
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dictionary={"CXXFLAGS_EXTRAS": "-gno-structor-decl-linkage-names"}
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)
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else:
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self.build()
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target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
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self.assertTrue(target, VALID_TARGET)
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env = self.registerSharedLibrariesWithTarget(target, ["lib"])
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breakpoint = lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", line_number("main.cpp", "return")
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)
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process = target.LaunchSimple(None, env, self.get_process_working_directory())
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self.assertIsNotNone(
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lldbutil.get_one_thread_stopped_at_breakpoint_id(self.process(), breakpoint)
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)
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self.expect_expr("f.method()", result_value="-72", result_type="int")
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self.expect_expr("Foo(10)", result_type="Foo")
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self.expect("expr Base()", error=True)
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self.expect("expr Bar()", error=True)
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