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