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 23 inline uint8_t Bswap(uint8_t x) { return x; } 24 inline uint16_t Bswap(uint16_t x) { return __builtin_bswap16(x); } 25 inline uint32_t Bswap(uint32_t x) { return __builtin_bswap32(x); } 26 inline uint64_t Bswap(uint64_t x) { return __builtin_bswap64(x); } 27 28 inline uint32_t Clzll(unsigned long long X) { return __builtin_clzll(X); } 29 inline int Popcountll(unsigned long long X) { return __builtin_popcountll(X); } 30 31 } // namespace fuzzer 32 33 #endif // !LIBFUZZER_MSVC 34 #endif // LLVM_FUZZER_BUILTINS_H 35