[libFuzzer] detect leaks after every run when executing fixed inputs (./fuzzer -runs...

llvm-svn: 284514

diff --git a/llvm/lib/Fuzzer/FuzzerDriver.cpp b/llvm/lib/Fuzzer/FuzzerDriver.cpp
index 5f9f935..c506361 100644 (file)
--- a/llvm/lib/Fuzzer/FuzzerDriver.cpp
+++ b/llvm/lib/Fuzzer/FuzzerDriver.cpp
@@ -270,6 +270,7 @@ int RunOneTest(Fuzzer *F, const char *InputFilePath, size_t MaxLen) {
   if (MaxLen && MaxLen < U.size())
     U.resize(MaxLen);
   F->RunOne(U.data(), U.size());
+  F->TryDetectingAMemoryLeak(U.data(), U.size(), true);
   return 0;
 }
 

diff --git a/llvm/lib/Fuzzer/FuzzerInternal.h b/llvm/lib/Fuzzer/FuzzerInternal.h
index 63bc4ec..15bf3e2 100644 (file)
--- a/llvm/lib/Fuzzer/FuzzerInternal.h
+++ b/llvm/lib/Fuzzer/FuzzerInternal.h
@@ -101,6 +101,8 @@ public:
 
   bool InFuzzingThread() const { return IsMyThread; }
   size_t GetCurrentUnitInFuzzingThead(const uint8_t **Data) const;
+  void TryDetectingAMemoryLeak(const uint8_t *Data, size_t Size,
+                               bool DuringInitialCorpusExecution);
 
 private:
   void AlarmCallback();
@@ -116,8 +118,6 @@ private:
   void PrintStats(const char *Where, const char *End = "\n", size_t Units = 0);
   void PrintStatusForNewUnit(const Unit &U);
   void ShuffleCorpus(UnitVector *V);
-  void TryDetectingAMemoryLeak(const uint8_t *Data, size_t Size,
-                               bool DuringInitialCorpusExecution);
   void AddToCorpus(const Unit &U);
   void CheckExitOnSrcPosOrItem();
 

diff --git a/llvm/lib/Fuzzer/test/fuzzer-leak.test b/llvm/lib/Fuzzer/test/fuzzer-leak.test
index 59ba02c..da93230 100644 (file)
--- a/llvm/lib/Fuzzer/test/fuzzer-leak.test
+++ b/llvm/lib/Fuzzer/test/fuzzer-leak.test
@@ -11,6 +11,9 @@ RUN: not LLVMFuzzer-LeakTest -runs=0 -detect_leaks=1 %S 2>&1 | FileCheck %s --ch
 LEAK_IN_CORPUS: ERROR: LeakSanitizer: detected memory leaks
 LEAK_IN_CORPUS: INFO: a leak has been found in the initial corpus.
 
+RUN: not LLVMFuzzer-LeakTest -runs=100000000 %S/hi.txt 2>&1 | FileCheck %s --check-prefix=MULTI_RUN_LEAK
+MULTI_RUN_LEAK-NOT: pulse
+MULTI_RUN_LEAK: LeakSanitizer: detected memory leaks
 
 RUN: not LLVMFuzzer-LeakTest -runs=100000 -detect_leaks=0 2>&1 | FileCheck %s --check-prefix=LEAK_AFTER
 RUN: not LLVMFuzzer-LeakTest -runs=100000                 2>&1 | FileCheck %s --check-prefix=LEAK_DURING