Index: lld/trunk/ELF/LinkerScript.cpp
===================================================================
--- lld/trunk/ELF/LinkerScript.cpp
+++ lld/trunk/ELF/LinkerScript.cpp
@@ -57,12 +57,12 @@
 ScriptConfiguration *elf::ScriptConfig;
 
 template <class ELFT> static SymbolBody *addRegular(SymbolAssignment *Cmd) {
+  Symbol *Sym;
   uint8_t Visibility = Cmd->Hidden ? STV_HIDDEN : STV_DEFAULT;
-  Symbol *Sym = Symtab<ELFT>::X->addUndefined(
-      Cmd->Name, /*IsLocal=*/false, STB_GLOBAL, Visibility,
-      /*Type*/ 0,
-      /*CanOmitFromDynSym*/ false, /*File*/ nullptr);
-
+  std::tie(Sym, std::ignore) = Symtab<ELFT>::X->insert(
+      Cmd->Name, /*Type*/ 0, Visibility, /*CanOmitFromDynSym*/ false,
+      /*File*/ nullptr);
+  Sym->Binding = STB_GLOBAL;
   replaceBody<DefinedRegular<ELFT>>(Sym, Cmd->Name, /*IsLocal=*/false,
                                     Visibility, STT_NOTYPE, 0, 0, nullptr,
                                     nullptr);
@@ -70,14 +70,14 @@
 }
 
 template <class ELFT> static SymbolBody *addSynthetic(SymbolAssignment *Cmd) {
+  Symbol *Sym;
   uint8_t Visibility = Cmd->Hidden ? STV_HIDDEN : STV_DEFAULT;
   const OutputSectionBase *Sec =
       ScriptConfig->HasSections ? nullptr : Cmd->Expression.Section();
-  Symbol *Sym = Symtab<ELFT>::X->addUndefined(
-      Cmd->Name, /*IsLocal=*/false, STB_GLOBAL, Visibility,
-      /*Type*/ 0,
-      /*CanOmitFromDynSym*/ false, /*File*/ nullptr);
-
+  std::tie(Sym, std::ignore) = Symtab<ELFT>::X->insert(
+      Cmd->Name, /*Type*/ 0, Visibility, /*CanOmitFromDynSym*/ false,
+      /*File*/ nullptr);
+  Sym->Binding = STB_GLOBAL;
   replaceBody<DefinedSynthetic>(Sym, Cmd->Name, 0, Sec);
   return Sym->body();
 }
Index: lld/trunk/ELF/SymbolTable.h
===================================================================
--- lld/trunk/ELF/SymbolTable.h
+++ lld/trunk/ELF/SymbolTable.h
@@ -77,6 +77,11 @@
                     uint8_t Binding, uint8_t StOther, uint8_t Type,
                     InputFile *File);
 
+  std::pair<Symbol *, bool> insert(StringRef Name);
+  std::pair<Symbol *, bool> insert(StringRef Name, uint8_t Type,
+                                   uint8_t Visibility, bool CanOmitFromDynSym,
+                                   InputFile *File);
+
   void scanUndefinedFlags();
   void scanShlibUndefined();
   void scanVersionScript();
@@ -90,11 +95,6 @@
   std::vector<InputSectionBase<ELFT> *> Sections;
 
 private:
-  std::pair<Symbol *, bool> insert(StringRef Name);
-  std::pair<Symbol *, bool> insert(StringRef Name, uint8_t Type,
-                                   uint8_t Visibility, bool CanOmitFromDynSym,
-                                   InputFile *File);
-
   std::vector<SymbolBody *> findByVersion(SymbolVersion Ver);
   std::vector<SymbolBody *> findAllByVersion(SymbolVersion Ver);
 
Index: lld/trunk/test/ELF/linkerscript/Inputs/lazy-symbols.s
===================================================================
--- lld/trunk/test/ELF/linkerscript/Inputs/lazy-symbols.s
+++ lld/trunk/test/ELF/linkerscript/Inputs/lazy-symbols.s
@@ -0,0 +1,2 @@
+.globl foo
+foo:
Index: lld/trunk/test/ELF/linkerscript/lazy-symbols.s
===================================================================
--- lld/trunk/test/ELF/linkerscript/lazy-symbols.s
+++ lld/trunk/test/ELF/linkerscript/lazy-symbols.s
@@ -0,0 +1,13 @@
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/lazy-symbols.s -o %t1
+# RUN: llvm-ar rcs %tar %t1
+# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2
+# RUN: echo "foo = 1;" > %t.script
+# RUN: ld.lld %t2 %tar --script %t.script -o %tout
+# RUN: llvm-readobj -symbols %tout | FileCheck %s
+
+# This test is to ensure a linker script can define a symbol which have the same
+# name as a lazy symbol.
+
+# CHECK: Name: foo
+# CHECK-NEXT: Value: 0x1