38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===//
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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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// Helpers for computing the 32-bit KCFI type ID from a mangled type name.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_UTILS_KCFIHASH_H
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#define LLVM_TRANSFORMS_UTILS_KCFIHASH_H
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#include "llvm/ADT/StringRef.h"
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#include <cstdint>
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namespace llvm {
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enum class KCFIHashAlgorithm { xxHash64, FNV1a };
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/// Parse a KCFI hash algorithm name.
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/// Returns xxHash64 if the name is not recognized.
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LLVM_ABI KCFIHashAlgorithm parseKCFIHashAlgorithm(StringRef Name);
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/// Convert a KCFI hash algorithm enum to its string representation.
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LLVM_ABI StringRef stringifyKCFIHashAlgorithm(KCFIHashAlgorithm Algorithm);
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/// Compute KCFI type ID from mangled type name.
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/// The algorithm can be xxHash64 or FNV-1a.
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LLVM_ABI uint32_t getKCFITypeID(StringRef MangledTypeName,
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KCFIHashAlgorithm Algorithm);
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} // end namespace llvm
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#endif // LLVM_TRANSFORMS_UTILS_KCFIHASH_H
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