[llvm-readobj/MachO] Ensure we always have valid CmdName/SegmentName.

Otherwise we might end up printing garbage while dumping.

Differential Revision:	 http://reviews.llvm.org/D13041

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248239 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/llvm-readobj/MachODumper.cpp b/tools/llvm-readobj/MachODumper.cpp
index 177f79fb9c194477860a4cd9e32e912ef49826a2..ab77fdcf136613f3c2df6822aa631f7561902fc5 100644 (file)
--- a/tools/llvm-readobj/MachODumper.cpp
+++ b/tools/llvm-readobj/MachODumper.cpp
@@ -267,8 +267,8 @@ namespace {
   };
 
   struct MachOSegment {
-    StringRef CmdName;
-    StringRef SegName;
+    std::string CmdName;
+    std::string SegName;
     uint64_t cmdsize;
     uint64_t vmaddr;
     uint64_t vmsize;