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34 lines
1.3 KiB
C++
34 lines
1.3 KiB
C++
//===-- ubsan_type_hash.cpp -----------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Implementation of a hash table for fast checking of inheritance
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// relationships. This file is only linked into C++ compilations, and is
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// permitted to use language features which require a C++ ABI library.
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//
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// Most of the implementation lives in an ABI-specific source file
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// (ubsan_type_hash_{itanium,win}.cpp).
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//
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//===----------------------------------------------------------------------===//
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#include "ubsan_platform.h"
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#if CAN_SANITIZE_UB
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#include "ubsan_type_hash.h"
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#include "sanitizer_common/sanitizer_common.h"
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/// A cache of recently-checked hashes. Mini hash table with "random" evictions.
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__ubsan::HashValue
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__ubsan::__ubsan_vptr_type_cache[__ubsan::VptrTypeCacheSize];
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__ubsan::DynamicTypeInfo __ubsan::getDynamicTypeInfoFromObject(void *Object) {
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void *VtablePtr = *reinterpret_cast<void **>(Object);
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return getDynamicTypeInfoFromVtable(VtablePtr);
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}
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#endif // CAN_SANITIZE_UB
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