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