1//===- FuzzerExtFunctions.h - Interface to external functions ---*- C++ -* ===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// Defines an interface to (possibly optional) functions. 10//===----------------------------------------------------------------------===// 11 12#ifndef LLVM_FUZZER_EXT_FUNCTIONS_H 13#define LLVM_FUZZER_EXT_FUNCTIONS_H 14 15#include <stddef.h> 16#include <stdint.h> 17 18namespace fuzzer { 19 20struct ExternalFunctions { 21 // Initialize function pointers. Functions that are not available will be set 22 // to nullptr. Do not call this constructor before ``main()`` has been 23 // entered. 24 ExternalFunctions(); 25 26#define EXT_FUNC(NAME, RETURN_TYPE, FUNC_SIG, WARN) \ 27 RETURN_TYPE(*NAME) FUNC_SIG = nullptr 28 29#include "FuzzerExtFunctions.def" 30 31#undef EXT_FUNC 32}; 33} // namespace fuzzer 34 35#endif 36