71536fd031
Right now when running `expr --top-level -- void foo() {}`, LLDB just prints a cryptic
`error: Couldn't find $__lldb_expr() in the module` error. The reason for that is
that if we don't have a running process, we try to set our execution policy to always use the
IR interpreter (ExecutionPolicyNever) which works even without a process. However
that code didn't consider the special ExecutionPolicyTopLevel which we use for
top-level expressions. By changing the execution policy to ExecutionPolicyNever,
LLDB thinks we're actually trying to interpret a normal expression inside our
`$__lldb_expr` function and then fails when looking for it.
This just adds an exception for top-level expressions to that code and a bunch of tests.
Reviewed By: shafik
Differential Revision: https://reviews.llvm.org/D91723
39 lines
1.6 KiB
Python
39 lines
1.6 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 StaticInitializers(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@expectedFailureAll(archs="aarch64", oslist="linux",
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bugnumber="https://bugs.llvm.org/show_bug.cgi?id=44053")
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def test(self):
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""" Test a static initializer. """
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self.build()
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lldbutil.run_to_source_breakpoint(self, '// break here',
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lldb.SBFileSpec("main.cpp", False))
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# We use counter to observe if the initializer was called.
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self.expect_expr("counter", result_type="int", result_value="0")
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self.expect("expr -p -- struct Foo { Foo() { inc_counter(); } }; Foo f;")
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self.expect_expr("counter", result_type="int", result_value="1")
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def test_failing_init(self):
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""" Test a static initializer that fails to execute. """
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self.build()
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lldbutil.run_to_source_breakpoint(self, '// break here',
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lldb.SBFileSpec("main.cpp", False))
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# FIXME: This error message is not even remotely helpful.
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self.expect("expr -p -- struct Foo2 { Foo2() { do_abort(); } }; Foo2 f;", error=True,
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substrs=["error: couldn't run static initializer:"])
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def test_without_process(self):
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""" Test a static initializer without a running process. """
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self.expect("expr -p -- int i = 0; struct Foo3 { Foo3() { ++i; } }; Foo3 f;", error=True,
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substrs=["Top-level code needs to be inserted into a runnable target"])
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