1 files changed, 5 insertions, 0 deletions
diff --git a/lib/fuzzer/FuzzerTracePC.h b/lib/fuzzer/FuzzerTracePC.h
index a051568c4..097ba69bd 100644
--- a/lib/fuzzer/FuzzerTracePC.h
+++ b/lib/fuzzer/FuzzerTracePC.h
@@ -74,6 +74,11 @@ class TracePC {
   // How many bits of PC are used from __sanitizer_cov_trace_pc.
   static const size_t kTracePcBits = 18;
 
+  enum HandleUnstableOptions {
+    MinUnstable = 1,
+    ZeroUnstable = 2,
+  };
+
   void HandleInit(uint32_t *Start, uint32_t *Stop);
   void HandleInline8bitCountersInit(uint8_t *Start, uint8_t *Stop);
   void HandlePCsInit(const uintptr_t *Start, const uintptr_t *Stop);