derek.holloway
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58 lines
2.2 KiB
Python
58 lines
2.2 KiB
Python
"""Test that SBValue clears non-addressable bits"""
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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 TestClearSBValueNonAddressableBits(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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# On AArch64 systems, the top bits that are not used for
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# addressing may be used for TBI, MTE, and/or pointer
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# authentication.
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@skipIf(archs=no_match(["aarch64", "arm64", "arm64e"]))
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# Only run this test on systems where TBI is known to be
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# enabled, so the address mask will clear the TBI bits.
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@skipUnlessPlatform(["linux"] + lldbplatformutil.getDarwinOSTriples())
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def test(self):
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self.source = "main.c"
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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(self.source, False)
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)
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if self.TraceOn():
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self.runCmd("frame variable")
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self.runCmd("frame variable &count &global")
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frame = thread.GetFrameAtIndex(0)
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count_p = frame.FindVariable("count_p")
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count_invalid_p = frame.FindVariable("count_invalid_p")
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self.assertEqual(
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count_p.GetValueAsUnsigned(), count_invalid_p.GetValueAsAddress()
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)
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self.assertNotEqual(
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count_invalid_p.GetValueAsUnsigned(), count_invalid_p.GetValueAsAddress()
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)
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self.assertEqual(5, count_p.Dereference().GetValueAsUnsigned())
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self.assertEqual(5, count_invalid_p.Dereference().GetValueAsUnsigned())
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global_p = frame.FindVariable("global_p")
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global_invalid_p = frame.FindVariable("global_invalid_p")
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self.assertEqual(
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global_p.GetValueAsUnsigned(), global_invalid_p.GetValueAsAddress()
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)
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self.assertNotEqual(
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global_invalid_p.GetValueAsUnsigned(), global_invalid_p.GetValueAsAddress()
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)
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self.assertEqual(10, global_p.Dereference().GetValueAsUnsigned())
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self.assertEqual(10, global_invalid_p.Dereference().GetValueAsUnsigned())
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main_p = frame.FindVariable("main_p")
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main_invalid_p = frame.FindVariable("main_invalid_p")
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self.assertEqual(main_p.GetValueAsAddress(), main_invalid_p.GetValueAsAddress())
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