1 files changed, 25 insertions, 0 deletions
diff --git a/llvm/tools/llvm-objdump/WasmDump.cpp b/llvm/tools/llvm-objdump/WasmDump.cpp
index 045002cd4b3..460fa168808 100644
--- a/llvm/tools/llvm-objdump/WasmDump.cpp
+++ b/llvm/tools/llvm-objdump/WasmDump.cpp
@@ -26,3 +26,28 @@ void llvm::printWasmFileHeader(const object::ObjectFile *Obj) {
   outs().write_hex(File->getHeader().Version);
   outs() << "\n";
 }
+
+std::error_code
+llvm::getWasmRelocationValueString(const WasmObjectFile *Obj,
+                                   const RelocationRef &RelRef,
+                                   SmallVectorImpl<char> &Result) {
+  const wasm::WasmRelocation &Rel = Obj->getWasmRelocation(RelRef);
+  symbol_iterator SI = RelRef.getSymbol();
+  std::string FmtBuf;
+  raw_string_ostream Fmt(FmtBuf);
+  if (SI == Obj->symbol_end()) {
+    // Not all wasm relocations have symbols associated with them.
+    // In particular R_WEBASSEMBLY_TYPE_INDEX_LEB.
+    Fmt << Rel.Index;
+  } else {
+    Expected<StringRef> SymNameOrErr = SI->getName();
+    if (!SymNameOrErr)
+      return errorToErrorCode(SymNameOrErr.takeError());
+    StringRef SymName = *SymNameOrErr;
+    Result.append(SymName.begin(), SymName.end());
+  }
+  Fmt << (Rel.Addend < 0 ? "" : "+") << Rel.Addend;
+  Fmt.flush();
+  Result.append(FmtBuf.begin(), FmtBuf.end());
+  return std::error_code();
+}