[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, 3 insertions, 2 deletions

diff --git a/llvm/lib/Fuzzer/test/CxxTokensTest.cpp b/llvm/lib/Fuzzer/test/CxxTokensTest.cpp
index 77d08b3d105..82773231569 100644
--- a/llvm/lib/Fuzzer/test/CxxTokensTest.cpp
+++ b/llvm/lib/Fuzzer/test/CxxTokensTest.cpp
@@ -10,9 +10,9 @@ static void Found() {
   exit(1);
 }
 
-extern "C" void LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
   // looking for "thread_local unsigned A;"
-  if (Size < 24) return;
+  if (Size < 24) return 0;
   if (0 == memcmp(&Data[0], "thread_local", 12))
     if (Data[12] == ' ')
       if (0 == memcmp(&Data[13], "unsigned", 8))
@@ -20,5 +20,6 @@ extern "C" void LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
           if (Data[22] == 'A')
             if (Data[23] == ';')
               Found();
+  return 0;
 }