[libFuzzer] don't report memory leaks if we are dying due to a timeout (just use _Exit instead of exit in the timeout callback)

llvm-svn: 264237

1 files changed, 14 insertions, 0 deletions

diff --git a/llvm/lib/Fuzzer/test/LeakTimeoutTest.cpp b/llvm/lib/Fuzzer/test/LeakTimeoutTest.cpp
new file mode 100644
index 0000000..3aa56c4
--- /dev/null
+++ b/llvm/lib/Fuzzer/test/LeakTimeoutTest.cpp
@@ -0,0 +1,14 @@
+// Test with a leak.
+#include <cstdint>
+#include <cstddef>
+
+static volatile int *Sink;
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  if (!Size) return 0;
+  Sink = new int;
+  Sink = new int;
+  while (Sink) *Sink = 0;  // Infinite loop.
+  return 0;
+}
+