lib/fuzzer/FuzzerMutate.cpp

70                                          size_t MaxSize) {
71   return EF->LLVMFuzzerCustomMutator(Data, Size, MaxSize, Rand.Rand());
75                                                   size_t MaxSize) {
82   CustomCrossOverInPlaceHere.resize(MaxSize);
88   assert(NewSize <= MaxSize && "CustomCrossOver returned overisized unit");
94                                                size_t MaxSize) {
95   if (Size > MaxSize || Size == 0) return 0;
105                                              size_t MaxSize) {
117                                              size_t MaxSize) {
118   if (Size >= MaxSize) return 0;
128                                                       size_t MaxSize) {
130   if (Size + kMinBytesToInsert >= MaxSize) return 0;
131   size_t MaxBytesToInsert = std::min(MaxSize - Size, (size_t)128);
133   assert(Size + N <= MaxSize && N);
145                                              size_t MaxSize) {
146   if (Size > MaxSize) return 0;
153                                             size_t MaxSize) {
154   if (Size > MaxSize) return 0;
162                                                               size_t MaxSize) {
163   return AddWordFromDictionary(ManualDictionary, Data, Size, MaxSize);
167                                                 size_t MaxSize,
174     if (Size + W.size() > MaxSize) return 0;
243     uint8_t *Data, size_t Size, size_t MaxSize) {
270   Size = ApplyDictionaryEntry(Data, Size, MaxSize, DE);
281     uint8_t *Data, size_t Size, size_t MaxSize) {
282   return AddWordFromDictionary(PersistentAutoDictionary, Data, Size, MaxSize);
286                                                  size_t Size, size_t MaxSize) {
287   if (Size > MaxSize) return 0;
290   Size = ApplyDictionaryEntry(Data, Size, MaxSize, DE);
339                                            size_t MaxSize) {
340   if (Size > MaxSize || Size == 0) return 0;
341   // If Size == MaxSize, `InsertPartOf(...)` will
343   if (Size == MaxSize || Rand.RandBool())
346     return InsertPartOf(Data, Size, Data, Size, MaxSize);
350                                                      size_t MaxSize) {
351   if (Size > MaxSize) return 0;
410                                                       size_t MaxSize) {
411   if (Size > MaxSize) return 0;
423                                             size_t MaxSize) {
424   if (Size > MaxSize) return 0;
429   MutateInPlaceHere.resize(MaxSize);
437       NewSize = InsertPartOf(O.data(), O.size(), U.data(), U.size(), MaxSize);
447   assert(NewSize <= MaxSize && "CrossOver returned overisized unit");
498 size_t MutationDispatcher::Mutate(uint8_t *Data, size_t Size, size_t MaxSize) {
499   return MutateImpl(Data, Size, MaxSize, Mutators);
503                                          size_t MaxSize) {
504   return MutateImpl(Data, Size, MaxSize, DefaultMutators);
509                                       size_t MaxSize,
511   assert(MaxSize > 0);
512   // Some mutations may fail (e.g. can't insert more bytes if Size == MaxSize),
517     size_t NewSize = (this->*(M.Fn))(Data, Size, MaxSize);
518     if (NewSize && NewSize <= MaxSize) {
531                                           size_t MaxSize,