1 //===- FuzzerBuiltins.h - Internal header for builtins ----------*- C++ -* ===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // Wrapper functions and marcos around builtin functions. 9 //===----------------------------------------------------------------------===// 10 11 #ifndef LLVM_FUZZER_BUILTINS_H 12 #define LLVM_FUZZER_BUILTINS_H 13 14 #include "FuzzerPlatform.h" 15 16 #if !LIBFUZZER_MSVC 17 #include <cstdint> 18 19 #define GET_CALLER_PC() __builtin_return_address(0) 20 21 namespace fuzzer { 22 Bswap(uint8_t x)23inline uint8_t Bswap(uint8_t x) { return x; } Bswap(uint16_t x)24inline uint16_t Bswap(uint16_t x) { return __builtin_bswap16(x); } Bswap(uint32_t x)25inline uint32_t Bswap(uint32_t x) { return __builtin_bswap32(x); } Bswap(uint64_t x)26inline uint64_t Bswap(uint64_t x) { return __builtin_bswap64(x); } 27 Clzll(unsigned long long X)28inline uint32_t Clzll(unsigned long long X) { return __builtin_clzll(X); } Clz(unsigned long long X)29inline uint32_t Clz(unsigned long long X) { return __builtin_clz(X); } Popcountll(unsigned long long X)30inline int Popcountll(unsigned long long X) { return __builtin_popcountll(X); } 31 32 } // namespace fuzzer 33 34 #endif // !LIBFUZZER_MSVC 35 #endif // LLVM_FUZZER_BUILTINS_H 36