[libFuzzer] make LLVMFuzzerTestOneInput (the fuzzer target function) return int instead of void. The actual return value is not *yet* used (and expected to be 0). This change is API breaking, so the fuzzers will need to be updated.

llvm-svn: 249214

1 files changed, 2 insertions, 1 deletions

diff --git a/llvm/lib/Fuzzer/test/SwitchTest.cpp b/llvm/lib/Fuzzer/test/SwitchTest.cpp
index 9f921fb6098..5de7fff7452 100644
--- a/llvm/lib/Fuzzer/test/SwitchTest.cpp
+++ b/llvm/lib/Fuzzer/test/SwitchTest.cpp
@@ -42,7 +42,7 @@ bool ShortSwitch(const uint8_t *Data, size_t Size) {
   return false;
 }
 
-extern "C" void LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
   if (Size >= 4  && Switch<int>(Data, Size) &&
       Size >= 12 && Switch<uint64_t>(Data + 4, Size - 4) &&
       Size >= 14 && ShortSwitch(Data + 12, 2)
@@ -50,5 +50,6 @@ extern "C" void LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
     fprintf(stderr, "BINGO; Found the target, exiting\n");
     exit(1);
   }
+  return 0;
 }