1 //===- FuzzerTracePC.h - Internal header for the Fuzzer ---------*- C++ -* ===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 //===----------------------------------------------------------------------===//
26 // because it seems cheaper this way than to compute some expensive
82   template <class Callback> size_t CollectFeatures(Callback CB) const;
100   void IterateCoveredFunctions(CallBack CB);
114   void ForEachObservedPC(CallBack CB) {  in ForEachObservedPC()  argument
116       CB(PC);  in ForEachObservedPC()
129   bool PcIsFuncEntry(const PCTableEntry *TE) { return TE->PCFlags & 1; }  in PcIsFuncEntry()
137   // Module represents the array of 8-bit counters split into regions
149     uint8_t *Stop()  { return Regions[NumRegions - 1].Stop; }  in Stop()
150     size_t Size()   { return Stop() - Start(); }  in Size()
153       return P - Start();  in Idx()
158   size_t NumModules;  // linker-initialized.
162   void IterateCounterRegions(Callback CB) {  in IterateCounterRegions()  argument
165         CB(Modules[m].Regions[r]);  in IterateCounterRegions()
188   const size_t StepMask = Step - 1;  in ForEachNonZeroByte()
193       Handle8bitCounter(FirstFeature, P - Begin, V);  in ForEachNonZeroByte()
201           Handle8bitCounter(FirstFeature, P - Begin + I, V);  in ForEachNonZeroByte()
207       Handle8bitCounter(FirstFeature, P - Begin, V);  in ForEachNonZeroByte()
208   return End - Begin;  in ForEachNonZeroByte()
211 // Given a non-zero Counter returns a number in the range [0,7].
217     // Counter bucket: [1] [2] [3] [4-7] [8-15] [16-31] [32-127] [128+]  in CounterToFeature()
272   auto StackDepthStepFunction = [](size_t A) -> size_t {  in CollectFeatures()
278     Log2 -= 3;  in CollectFeatures()