1 //===-- llvm-dwarfdump-fuzzer.cpp - Fuzz the llvm-dwarfdump tool ----------===// 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 /// 10 /// \file 11 /// This file implements a function that runs llvm-dwarfdump 12 /// on a single input. This function is then linked into the Fuzzer library. 13 /// 14 //===----------------------------------------------------------------------===// 15 #include "llvm/DebugInfo/DIContext.h" 16 #include "llvm/DebugInfo/DWARF/DWARFContext.h" 17 #include "llvm/Object/ObjectFile.h" 18 #include "llvm/Support/MemoryBuffer.h" 19 20 using namespace llvm; 21 using namespace object; 22 LLVMFuzzerTestOneInput(uint8_t * data,size_t size)23extern "C" int LLVMFuzzerTestOneInput(uint8_t *data, size_t size) { 24 std::unique_ptr<MemoryBuffer> Buff = MemoryBuffer::getMemBuffer( 25 StringRef((const char *)data, size), "", false); 26 27 Expected<std::unique_ptr<ObjectFile>> ObjOrErr = 28 ObjectFile::createObjectFile(Buff->getMemBufferRef()); 29 if (auto E = ObjOrErr.takeError()) { 30 consumeError(std::move(E)); 31 return 0; 32 } 33 ObjectFile &Obj = *ObjOrErr.get(); 34 std::unique_ptr<DIContext> DICtx = DWARFContext::create(Obj); 35 36 37 DIDumpOptions opts; 38 opts.DumpType = DIDT_All; 39 DICtx->dump(nulls(), opts); 40 return 0; 41 } 42