[lib/Fuzzer] start getting rid of std::cerr. Sadly, these parts of C++ library used...

[oota-llvm.git] / lib / Fuzzer / FuzzerInternal.h

diff --git a/lib/Fuzzer/FuzzerInternal.h b/lib/Fuzzer/FuzzerInternal.h
index 8d6193e9a229a0e1dd8d308846a6bb14d01eb7b0..c387fe7a7c6094f91810b60ce381278bf74cffe2 100644 (file)
--- a/lib/Fuzzer/FuzzerInternal.h
+++ b/lib/Fuzzer/FuzzerInternal.h
@@ -16,7 +16,6 @@
 #include <string>
 #include <vector>
 #include <unordered_set>
-#include <set>
 
 #include "FuzzerInterface.h"
 
@@ -34,10 +33,12 @@ void CopyFileToErr(const std::string &Path);
 std::string DirPlusFile(const std::string &DirPath,
                         const std::string &FileName);
 
-void Mutate(Unit *U, size_t MaxLen);
+size_t Mutate(uint8_t *Data, size_t Size, size_t MaxSize);
 
-void CrossOver(const Unit &A, const Unit &B, Unit *U, size_t MaxLen);
+size_t CrossOver(const uint8_t *Data1, size_t Size1, const uint8_t *Data2,
+                 size_t Size2, uint8_t *Out, size_t MaxOutSize);
 
+void Printf(const char *Fmt, ...);
 void Print(const Unit &U, const char *PrintAfter = "");
 void PrintASCII(const Unit &U, const char *PrintAfter = "");
 std::string Hash(const Unit &U);
@@ -57,13 +58,13 @@ class Fuzzer {
   struct FuzzingOptions {
     int Verbosity = 1;
     int MaxLen = 0;
+    int UnitTimeoutSec = 300;
     bool DoCrossOver = true;
     int  MutateDepth = 5;
     bool ExitOnFirst = false;
     bool UseCounters = false;
     bool UseTraces = false;
     bool UseFullCoverageSet  = false;
-    bool UseCoveragePairs = false;
     bool Reload = true;
     int PreferSmallDuringInitialShuffle = -1;
     size_t MaxNumberOfRuns = ULONG_MAX;
@@ -72,7 +73,7 @@ class Fuzzer {
     std::string SyncCommand;
     std::vector<std::string> Tokens;
   };
-  Fuzzer(UserCallback Callback, FuzzingOptions Options);
+  Fuzzer(UserSuppliedFuzzer &USF, FuzzingOptions Options);
   void AddToCorpus(const Unit &U) { Corpus.push_back(U); }
   void Loop(size_t NumIterations);
   void ShuffleAndMinimize();
@@ -132,9 +133,8 @@ class Fuzzer {
   size_t TotalNumberOfRuns = 0;
 
   std::vector<Unit> Corpus;
-  std::set<Unit> UnitsAddedAfterInitialLoad;
+  std::unordered_set<std::string> UnitHashesAddedToCorpus;
   std::unordered_set<uintptr_t> FullCoverageSets;
-  std::unordered_set<uint64_t>  CoveragePairs;
 
   // For UseCounters
   std::vector<uint8_t> CounterBitmap;
@@ -144,7 +144,7 @@ class Fuzzer {
     return Res;
   }
 
-  UserCallback Callback;
+  UserSuppliedFuzzer &USF;
   FuzzingOptions Options;
   system_clock::time_point ProcessStartTime = system_clock::now();
   system_clock::time_point LastExternalSync = system_clock::now();
@@ -153,4 +153,15 @@ class Fuzzer {
   long EpochOfLastReadOfOutputCorpus = 0;
 };
 
+class SimpleUserSuppliedFuzzer: public UserSuppliedFuzzer {
+ public:
+  SimpleUserSuppliedFuzzer(UserCallback Callback) : Callback(Callback) {}
+  virtual void TargetFunction(const uint8_t *Data, size_t Size) {
+    return Callback(Data, Size);
+  }
+
+ private:
+  UserCallback Callback;
+};
+
 };  // namespace fuzzer