derek.holloway
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44 lines
1.5 KiB
Python
44 lines
1.5 KiB
Python
"""
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VTable pointers are signed with a discriminator that incorporates the object's
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address (PointerAuthVTPtrAddressDiscrimination) and class type (
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PointerAuthVTPtrTypeDiscrimination).
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"""
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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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from lldbsuite.test.lldbarm64e import Arm64eTestBase
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class TestPtrAuthVTableExpressions(Arm64eTestBase):
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NO_DEBUG_INFO_TESTCASE = True
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SHARED_BUILD_TESTCASE = False
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def test_virtual_call_on_debuggee_object(self):
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self.build()
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lldbutil.run_to_source_breakpoint(
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self, "// break here", lldb.SBFileSpec("main.cpp", False)
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)
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self.expect_expr("d.value()", result_type="int", result_value="20")
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self.expect_expr("od.value()", result_type="int", result_value="30")
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def test_virtual_call_through_base_pointer(self):
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self.build()
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lldbutil.run_to_source_breakpoint(
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self, "// break here", lldb.SBFileSpec("main.cpp", False)
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)
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self.expect_expr("base_ptr->value()", result_type="int", result_value="20")
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def test_virtual_call_via_helper(self):
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self.build()
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lldbutil.run_to_source_breakpoint(
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self, "// break here", lldb.SBFileSpec("main.cpp", False)
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)
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self.expect_expr("call_value(&d)", result_type="int", result_value="20")
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self.expect_expr("call_value(&od)", result_type="int", result_value="30")
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self.expect_expr("call_value(base_ptr)", result_type="int", result_value="20")
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