1//===-- fuzzer_initialize.cpp - Fuzz Clang --------------------------------===// 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/// 9/// \file 10/// This file implements two functions: one that returns the command line 11/// arguments for a given call to the fuzz target and one that initializes 12/// the fuzzer with the correct command line arguments. 13/// 14//===----------------------------------------------------------------------===// 15 16#include "fuzzer_initialize.h" 17 18#include "llvm/InitializePasses.h" 19#include "llvm/PassRegistry.h" 20#include "llvm/Support/TargetSelect.h" 21#include <cstring> 22 23using namespace clang_fuzzer; 24using namespace llvm; 25 26 27namespace clang_fuzzer { 28 29static std::vector<const char *> CLArgs; 30 31const std::vector<const char *>& GetCLArgs() { 32 return CLArgs; 33} 34 35} 36 37extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) { 38 InitializeAllTargets(); 39 InitializeAllTargetMCs(); 40 InitializeAllAsmPrinters(); 41 InitializeAllAsmParsers(); 42 43 PassRegistry &Registry = *PassRegistry::getPassRegistry(); 44 initializeCore(Registry); 45 initializeScalarOpts(Registry); 46 initializeVectorization(Registry); 47 initializeIPO(Registry); 48 initializeAnalysis(Registry); 49 initializeTransformUtils(Registry); 50 initializeInstCombine(Registry); 51 initializeTarget(Registry); 52 53 CLArgs.push_back("-O2"); 54 for (int I = 1; I < *argc; I++) { 55 if (strcmp((*argv)[I], "-ignore_remaining_args=1") == 0) { 56 for (I++; I < *argc; I++) 57 CLArgs.push_back((*argv)[I]); 58 break; 59 } 60 } 61 return 0; 62} 63