[WebAssembly] llvm-readobj: display symbols names in relocations

Differential Revision: https://reviews.llvm.org/D46296

llvm-svn: 331279

1 files changed, 14 insertions, 3 deletions

diff --git a/llvm/tools/llvm-readobj/WasmDumper.cpp b/llvm/tools/llvm-readobj/WasmDumper.cpp
index 562c76f85be..ce224836225 100644
--- a/llvm/tools/llvm-readobj/WasmDumper.cpp
+++ b/llvm/tools/llvm-readobj/WasmDumper.cpp
@@ -80,6 +80,11 @@ void WasmDumper::printRelocation(const SectionRef &Section,
   Reloc.getTypeName(RelocTypeName);
   const wasm::WasmRelocation &WasmReloc = Obj->getWasmRelocation(Reloc);
 
+  StringRef SymName;
+  symbol_iterator SI = Reloc.getSymbol();
+  if (SI != Obj->symbol_end())
+    SymName = error(SI->getName());
+
   bool HasAddend = false;
   switch (RelocType) {
   case wasm::R_WEBASSEMBLY_MEMORY_ADDR_LEB:
@@ -96,13 +101,19 @@ void WasmDumper::printRelocation(const SectionRef &Section,
     DictScope Group(W, "Relocation");
     W.printNumber("Type", RelocTypeName, RelocType);
     W.printHex("Offset", Reloc.getOffset());
-    W.printHex("Index", WasmReloc.Index);
+    if (!SymName.empty())
+      W.printString("Symbol", SymName);
+    else
+      W.printHex("Index", WasmReloc.Index);
     if (HasAddend)
       W.printNumber("Addend", WasmReloc.Addend);
   } else {
     raw_ostream& OS = W.startLine();
-    OS << W.hex(Reloc.getOffset()) << " " << RelocTypeName << "["
-       << WasmReloc.Index << "]";
+    OS << W.hex(Reloc.getOffset()) << " " << RelocTypeName << " ";
+    if (!SymName.empty())
+      OS << SymName;
+    else
+      OS << WasmReloc.Index;
     if (HasAddend)
       OS << " " << WasmReloc.Addend;
     OS << "\n";