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Summary: GCC does not emit DW_AT_data_member_location for members of a union. Starting with a 0 value for member locations helps is reading union types in such cases. Reviewers: clayborg Subscribers: ldrumm, lldb-commits Differential Revision: http://reviews.llvm.org/D18008 llvm-svn: 263085
47 lines
1.6 KiB
Python
47 lines
1.6 KiB
Python
import lldb
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from lldbsuite.test.lldbtest import *
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import lldbsuite.test.lldbutil as lldbutil
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class TestUnionMembers(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def test_union_members(self):
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self._load_exe()
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# Set breakpoints
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bp = self.target.BreakpointCreateBySourceRegex("Break here", self.src_file_spec)
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self.assertTrue(bp.IsValid() and bp.GetNumLocations() >= 1, VALID_BREAKPOINT)
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# Launch the process
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self.process = self.target.LaunchSimple(None, None, self.get_process_working_directory())
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self.assertTrue(self.process.IsValid(), PROCESS_IS_VALID)
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self.assertTrue(self.process.GetState() == lldb.eStateStopped, PROCESS_STOPPED)
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thread = lldbutil.get_stopped_thread(self.process, lldb.eStopReasonBreakpoint)
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self.assertTrue(thread.IsValid())
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frame = thread.GetSelectedFrame()
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self.assertTrue(frame.IsValid())
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val = frame.EvaluateExpression("u");
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self.assertTrue(val.IsValid())
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val = frame.EvaluateExpression("u.s");
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self.assertTrue(val.IsValid())
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self.assertEqual(val.GetNumChildren(), 2)
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def _load_exe(self):
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self.build()
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cwd = os.getcwd()
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src_file = os.path.join(cwd, "main.c")
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self.src_file_spec = lldb.SBFileSpec(src_file)
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self.assertTrue(self.src_file_spec.IsValid(), "breakpoint file")
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# Get the path of the executable
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exe_path = os.path.join(cwd, 'a.out')
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# Load the executable
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self.target = self.dbg.CreateTarget(exe_path)
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self.assertTrue(self.target.IsValid(), VALID_TARGET)
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