[llvm-objcopy] Add --add-gnu-debuglink

This change adds support for --add-gnu-debuglink to llvm-objcopy

Differential Revision: https://reviews.llvm.org/D41731

llvm-svn: 323477

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/tools/llvm-objcopy/llvm-objcopy.cpp b/llvm/tools/llvm-objcopy/llvm-objcopy.cpp
index eb1d0de..0b09184 100644
--- a/llvm/tools/llvm-objcopy/llvm-objcopy.cpp
+++ b/llvm/tools/llvm-objcopy/llvm-objcopy.cpp
@@ -121,6 +121,10 @@ static cl::opt<bool> LocalizeHidden(
     "localize-hidden",
     cl::desc(
         "Mark all symbols that have hidden or internal visibility as local"));
+static cl::opt<std::string>
+    AddGnuDebugLink("add-gnu-debuglink",
+                    cl::desc("adds a .gnu_debuglink for <debug-file>"),
+                    cl::value_desc("debug-file"));
 
 using SectionPred = std::function<bool(const SectionBase &Sec)>;
 
@@ -318,6 +322,10 @@ template <class ELFT> void CopyBinary(const ELFObjectFile<ELFT> &ObjFile) {
     }
   }
 
+  if (!AddGnuDebugLink.empty()) {
+    Obj->addGnuDebugLink(AddGnuDebugLink);
+  }
+
   Obj->finalize();
   WriteObjectFile(*Obj, OutputFilename.getValue());
 }