Index: include/lld/Core/DefinedAtom.h
===================================================================
--- include/lld/Core/DefinedAtom.h
+++ include/lld/Core/DefinedAtom.h
@@ -197,6 +197,14 @@
     codeARMThumb,     // ARM Thumb instruction set
   };
 
+  // Visibility of the Atom
+  enum Visibility {
+    visibilityDefault,
+    visibilityInternal,
+    visibilityHidden,
+    visibilityProtected,
+  };
+
   struct Alignment {
     Alignment(int p2, int m = 0)
       : powerOf2(p2)
@@ -287,6 +295,9 @@
   /// content.
   virtual ArrayRef<uint8_t> rawContent() const = 0;
 
+  /// \brief returns visibility of an Atom.
+  virtual Visibility visibility() const { return visibilityDefault; }
+
   /// This class abstracts iterating over the sequence of References
   /// in an Atom.  Concrete instances of DefinedAtom must implement
   /// the derefIterator() and incrementIterator() methods.
Index: lib/ReaderWriter/ELF/Atoms.h
===================================================================
--- lib/ReaderWriter/ELF/Atoms.h
+++ lib/ReaderWriter/ELF/Atoms.h
@@ -807,6 +807,8 @@
 
   ContentType contentType() const override { return typeGOT; }
 
+  Visibility visibility() const override { return visibilityHidden; }
+
   uint64_t size() const override { return 0; }
 
   ContentPermissions permissions() const override { return permRW_; }
Index: lib/ReaderWriter/ELF/SectionChunks.h
===================================================================
--- lib/ReaderWriter/ELF/SectionChunks.h
+++ lib/ReaderWriter/ELF/SectionChunks.h
@@ -729,7 +729,7 @@
 template <class ELFT>
 void SymbolTable<ELFT>::addDefinedAtom(Elf_Sym &sym, const DefinedAtom *da,
                                        int64_t addr) {
-  unsigned char binding = 0, type = 0;
+  unsigned char binding = 0, type = 0, visibility = 0;
   sym.st_size = da->size();
   DefinedAtom::ContentType ct;
   switch (ct = da->contentType()) {
@@ -773,6 +773,21 @@
   else
     binding = llvm::ELF::STB_GLOBAL;
 
+  switch (DefinedAtom::Visibility vt = da->visibility()) {
+    case DefinedAtom::visibilityDefault:
+      visibility = llvm::ELF::STV_DEFAULT;
+      break;
+    case DefinedAtom::visibilityInternal:
+      visibility = llvm::ELF::STV_INTERNAL;
+      break;
+    case DefinedAtom::visibilityHidden:
+      visibility = llvm::ELF::STV_HIDDEN;
+      break;
+    case DefinedAtom::visibilityProtected:
+      visibility = llvm::ELF::STV_PROTECTED;
+      break;
+  }
+  sym.setVisibility(visibility);
   sym.setBindingAndType(binding, type);
 }