[llvm-readobj] Dump DT_USED value as string like GNU readelf does

Reviewers: jhenderson

Reviewed By: jhenderson

Subscribers: rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59089

llvm-svn: 355600
diff --git a/llvm/tools/llvm-readobj/ELFDumper.cpp b/llvm/tools/llvm-readobj/ELFDumper.cpp
index 786a028..a406d36 100644
--- a/llvm/tools/llvm-readobj/ELFDumper.cpp
+++ b/llvm/tools/llvm-readobj/ELFDumper.cpp
@@ -1876,6 +1876,9 @@
   case DT_AUXILIARY:
     printLibrary(OS, "Auxiliary library", getDynamicString(Value));
     break;
+  case DT_USED:
+    printLibrary(OS, "Not needed object", getDynamicString(Value));
+    break;
   case DT_FILTER:
     printLibrary(OS, "Filter library", getDynamicString(Value));
     break;