1*0b57cec5SDimitry Andric //===- FuzzerExtFunctions.h - Interface to external functions ---*- C++ -* ===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric // Defines an interface to (possibly optional) functions. 9*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 10*0b57cec5SDimitry Andric 11*0b57cec5SDimitry Andric #ifndef LLVM_FUZZER_EXT_FUNCTIONS_H 12*0b57cec5SDimitry Andric #define LLVM_FUZZER_EXT_FUNCTIONS_H 13*0b57cec5SDimitry Andric 14*0b57cec5SDimitry Andric #include <stddef.h> 15*0b57cec5SDimitry Andric #include <stdint.h> 16*0b57cec5SDimitry Andric 17*0b57cec5SDimitry Andric namespace fuzzer { 18*0b57cec5SDimitry Andric 19*0b57cec5SDimitry Andric struct ExternalFunctions { 20*0b57cec5SDimitry Andric // Initialize function pointers. Functions that are not available will be set 21*0b57cec5SDimitry Andric // to nullptr. Do not call this constructor before ``main()`` has been 22*0b57cec5SDimitry Andric // entered. 23*0b57cec5SDimitry Andric ExternalFunctions(); 24*0b57cec5SDimitry Andric 25*0b57cec5SDimitry Andric #define EXT_FUNC(NAME, RETURN_TYPE, FUNC_SIG, WARN) \ 26*0b57cec5SDimitry Andric RETURN_TYPE(*NAME) FUNC_SIG = nullptr 27*0b57cec5SDimitry Andric 28*0b57cec5SDimitry Andric #include "FuzzerExtFunctions.def" 29*0b57cec5SDimitry Andric 30*0b57cec5SDimitry Andric #undef EXT_FUNC 31*0b57cec5SDimitry Andric }; 32*0b57cec5SDimitry Andric } // namespace fuzzer 33*0b57cec5SDimitry Andric 34*0b57cec5SDimitry Andric #endif 35