diff --git a/llvm/lib/BinaryFormat/Wasm.cpp b/llvm/lib/BinaryFormat/Wasm.cpp
new file mode 100644
index 0000000..35360d0
--- /dev/null
+++ b/llvm/lib/BinaryFormat/Wasm.cpp
@@ -0,0 +1,34 @@
+//===-- llvm/BinaryFormat/Wasm.cpp -------------------------------*- C++-*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/BinaryFormat/Wasm.h"
+
+std::string llvm::wasm::toString(wasm::WasmSymbolType type) {
+  switch (type) {
+  case wasm::WASM_SYMBOL_TYPE_FUNCTION:
+    return "WASM_SYMBOL_TYPE_FUNCTION";
+  case wasm::WASM_SYMBOL_TYPE_GLOBAL:
+    return "WASM_SYMBOL_TYPE_GLOBAL";
+  case wasm::WASM_SYMBOL_TYPE_DATA:
+    return "WASM_SYMBOL_TYPE_DATA";
+  case wasm::WASM_SYMBOL_TYPE_SECTION:
+    return "WASM_SYMBOL_TYPE_SECTION";
+  }
+  llvm_unreachable("unknown symbol type");
+}
+
+std::string llvm::wasm::relocTypetoString(uint32_t type) {
+  switch (type) {
+#define WASM_RELOC(NAME, VALUE) case VALUE: return #NAME;
+#include "llvm/BinaryFormat/WasmRelocs.def"
+#undef WASM_RELOC
+  default:
+    llvm_unreachable("unknown reloc type");
+  }
+}