Move libFuzzer to compiler_rt.

Resulting library binaries will be named libclang_rt.fuzzer*, and will
be placed in Clang toolchain, allowing redistribution.

Differential Revision: https://reviews.llvm.org/D36908

llvm-svn: 311407

1 files changed, 28 insertions, 0 deletions

diff --git a/compiler-rt/test/fuzzer/InitializeTest.cpp b/compiler-rt/test/fuzzer/InitializeTest.cpp
new file mode 100644
index 00000000000..d640a8d102d
--- /dev/null
+++ b/compiler-rt/test/fuzzer/InitializeTest.cpp
@@ -0,0 +1,28 @@
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+// Make sure LLVMFuzzerInitialize is called.
+#include <assert.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static char *argv0;
+
+extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) {
+  assert(*argc > 0);
+  argv0 = **argv;
+  fprintf(stderr, "LLVMFuzzerInitialize: %s\n", argv0);
+  return 0;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  if (Size == strlen(argv0) &&
+      !memmem(Data, Size, argv0, Size)) {
+    fprintf(stderr, "BINGO %s\n", argv0);
+    exit(1);
+  }
+  return 0;
+}