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add libfuzzer custom mutator, minor enhancements and fixes

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This commit is contained in:
van Hauser
2020-09-10 15:26:46 +02:00
parent fdb0452245
commit 380051868a
62 changed files with 11668 additions and 20 deletions
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35
custom_mutators/libfuzzer/FuzzerBuiltins.h Normal file
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//===- FuzzerBuiltins.h - Internal header for builtins ----------*- C++ -* ===//
//
// 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
//
//===----------------------------------------------------------------------===//
// Wrapper functions and marcos around builtin functions.
//===----------------------------------------------------------------------===//
#ifndef LLVM_FUZZER_BUILTINS_H
#define LLVM_FUZZER_BUILTINS_H
#include "FuzzerPlatform.h"
#if !LIBFUZZER_MSVC
#include <cstdint>
#define GET_CALLER_PC() __builtin_return_address(0)
namespace fuzzer {
inline uint8_t Bswap(uint8_t x) { return x; }
inline uint16_t Bswap(uint16_t x) { return __builtin_bswap16(x); }
inline uint32_t Bswap(uint32_t x) { return __builtin_bswap32(x); }
inline uint64_t Bswap(uint64_t x) { return __builtin_bswap64(x); }
inline uint32_t Clzll(unsigned long long X) { return __builtin_clzll(X); }
inline uint32_t Clz(unsigned long long X) { return __builtin_clz(X); }
inline int Popcountll(unsigned long long X) { return __builtin_popcountll(X); }
} // namespace fuzzer
#endif // !LIBFUZZER_MSVC
#endif // LLVM_FUZZER_BUILTINS_H