diff --git a/lld/ELF/Driver.cpp b/lld/ELF/Driver.cpp
--- a/lld/ELF/Driver.cpp
+++ b/lld/ELF/Driver.cpp
@@ -2364,6 +2364,7 @@
   // No more lazy bitcode can be extracted at this point. Do post parse work
   // like checking duplicate symbols.
   parallelForEach(bitcodeFiles, [](BitcodeFile *file) { file->postParse(); });
+  parallelForEach(objectFiles, initializeLocalSymbols);
   parallelForEach(objectFiles, postParseObjectFile);
 
   // Return if there were name resolution errors.
@@ -2433,8 +2434,9 @@
 
   // compileBitcodeFiles may have produced lto.tmp object files. No more file is
   // added at this point.
-  parallelForEach(makeArrayRef(objectFiles).slice(numObjsBeforeLTO),
-                  postParseObjectFile);
+  auto newObjectFiles = makeArrayRef(objectFiles).slice(numObjsBeforeLTO);
+  parallelForEach(newObjectFiles, initializeLocalSymbols);
+  parallelForEach(newObjectFiles, postParseObjectFile);
 
   // Handle --exclude-libs again because lto.tmp may reference additional
   // libcalls symbols defined in an excluded archive. This may override
diff --git a/lld/ELF/InputFiles.h b/lld/ELF/InputFiles.h
--- a/lld/ELF/InputFiles.h
+++ b/lld/ELF/InputFiles.h
@@ -273,6 +273,7 @@
   // Get cached DWARF information.
   DWARFCache *getDwarf();
 
+  void initializeLocalSymbols();
   void postParse();
 
 private:
@@ -377,6 +378,8 @@
 
 std::string replaceThinLTOSuffix(StringRef path);
 
+void initializeLocalSymbols(ELFFileBase *file);
+
 extern SmallVector<std::unique_ptr<MemoryBuffer>> memoryBuffers;
 extern SmallVector<BinaryFile *, 0> binaryFiles;
 extern SmallVector<BitcodeFile *, 0> bitcodeFiles;
diff --git a/lld/ELF/InputFiles.cpp b/lld/ELF/InputFiles.cpp
--- a/lld/ELF/InputFiles.cpp
+++ b/lld/ELF/InputFiles.cpp
@@ -1021,40 +1021,6 @@
 
   ArrayRef<Elf_Sym> eSyms = this->getELFSyms<ELFT>();
   symbols.resize(eSyms.size());
-  SymbolUnion *locals =
-      firstGlobal == 0
-          ? nullptr
-          : getSpecificAllocSingleton<SymbolUnion>().Allocate(firstGlobal);
-
-  for (size_t i = 0, end = firstGlobal; i != end; ++i) {
-    const Elf_Sym &eSym = eSyms[i];
-    uint32_t secIdx = eSym.st_shndx;
-    if (LLVM_UNLIKELY(secIdx == SHN_XINDEX))
-      secIdx = check(getExtendedSymbolTableIndex<ELFT>(eSym, i, shndxTable));
-    else if (secIdx >= SHN_LORESERVE)
-      secIdx = 0;
-    if (LLVM_UNLIKELY(secIdx >= sections.size()))
-      fatal(toString(this) + ": invalid section index: " + Twine(secIdx));
-    if (LLVM_UNLIKELY(eSym.getBinding() != STB_LOCAL))
-      error(toString(this) + ": non-local symbol (" + Twine(i) +
-            ") found at index < .symtab's sh_info (" + Twine(end) + ")");
-
-    InputSectionBase *sec = sections[secIdx];
-    uint8_t type = eSym.getType();
-    if (type == STT_FILE)
-      sourceFile = CHECK(eSym.getName(stringTable), this);
-    if (LLVM_UNLIKELY(stringTable.size() <= eSym.st_name))
-      fatal(toString(this) + ": invalid symbol name offset");
-    StringRef name(stringTable.data() + eSym.st_name);
-
-    symbols[i] = reinterpret_cast<Symbol *>(locals + i);
-    if (eSym.st_shndx == SHN_UNDEF || sec == &InputSection::discarded)
-      new (symbols[i]) Undefined(this, name, STB_LOCAL, eSym.st_other, type,
-                                 /*discardedSecIdx=*/secIdx);
-    else
-      new (symbols[i]) Defined(this, name, STB_LOCAL, eSym.st_other, type,
-                               eSym.st_value, eSym.st_size, sec);
-  }
 
   // Some entries have been filled by LazyObjFile.
   for (size_t i = firstGlobal, end = eSyms.size(); i != end; ++i)
@@ -1149,6 +1115,67 @@
   }
 }
 
+template <class ELFT> void ObjFile<ELFT>::initializeLocalSymbols() {
+  if (!firstGlobal)
+    return;
+  SymbolUnion *locals;
+  {
+    static std::mutex mu;
+    std::lock_guard<std::mutex> lock(mu);
+    locals = getSpecificAllocSingleton<SymbolUnion>().Allocate(firstGlobal);
+  }
+
+  ArrayRef<Elf_Sym> eSyms = this->getELFSyms<ELFT>();
+  for (size_t i = 0, end = firstGlobal; i != end; ++i) {
+    const Elf_Sym &eSym = eSyms[i];
+    uint32_t secIdx = eSym.st_shndx;
+    if (LLVM_UNLIKELY(secIdx == SHN_XINDEX))
+      secIdx = check(getExtendedSymbolTableIndex<ELFT>(eSym, i, shndxTable));
+    else if (secIdx >= SHN_LORESERVE)
+      secIdx = 0;
+    if (LLVM_UNLIKELY(secIdx >= sections.size()))
+      fatal(toString(this) + ": invalid section index: " + Twine(secIdx));
+    if (LLVM_UNLIKELY(eSym.getBinding() != STB_LOCAL))
+      error(toString(this) + ": non-local symbol (" + Twine(i) +
+            ") found at index < .symtab's sh_info (" + Twine(end) + ")");
+
+    InputSectionBase *sec = sections[secIdx];
+    uint8_t type = eSym.getType();
+    if (type == STT_FILE)
+      sourceFile = CHECK(eSym.getName(stringTable), this);
+    if (LLVM_UNLIKELY(stringTable.size() <= eSym.st_name))
+      fatal(toString(this) + ": invalid symbol name offset");
+    StringRef name(stringTable.data() + eSym.st_name);
+
+    symbols[i] = reinterpret_cast<Symbol *>(locals + i);
+    if (eSym.st_shndx == SHN_UNDEF || sec == &InputSection::discarded)
+      new (symbols[i]) Undefined(this, name, STB_LOCAL, eSym.st_other, type,
+                                 /*discardedSecIdx=*/secIdx);
+    else
+      new (symbols[i]) Defined(this, name, STB_LOCAL, eSym.st_other, type,
+                               eSym.st_value, eSym.st_size, sec);
+  }
+}
+
+void elf::initializeLocalSymbols(ELFFileBase *file) {
+  switch (config->ekind) {
+  case ELF32LEKind:
+    cast<ObjFile<ELF32LE>>(file)->initializeLocalSymbols();
+    break;
+  case ELF32BEKind:
+    cast<ObjFile<ELF32BE>>(file)->initializeLocalSymbols();
+    break;
+  case ELF64LEKind:
+    cast<ObjFile<ELF64LE>>(file)->initializeLocalSymbols();
+    break;
+  case ELF64BEKind:
+    cast<ObjFile<ELF64BE>>(file)->initializeLocalSymbols();
+    break;
+  default:
+    llvm_unreachable("");
+  }
+}
+
 // Called after all ObjFile::parse is called for all ObjFiles. This checks
 // duplicate symbols and may do symbol property merge in the future.
 template <class ELFT> void ObjFile<ELFT>::postParse() {
diff --git a/lld/ELF/InputSection.cpp b/lld/ELF/InputSection.cpp
--- a/lld/ELF/InputSection.cpp
+++ b/lld/ELF/InputSection.cpp
@@ -297,9 +297,10 @@
   if (!file->archiveName.empty())
     archive = (" in archive " + file->archiveName).str();
 
-  // Find a symbol that encloses a given location.
+  // Find a symbol that encloses a given location. getObjMsg may be called
+  // before ObjFile::initializeLocalSymbols where local symbols are initialized.
   for (Symbol *b : file->getSymbols())
-    if (auto *d = dyn_cast<Defined>(b))
+    if (auto *d = dyn_cast_or_null<Defined>(b))
       if (d->section == this && d->value <= off && off < d->value + d->size)
         return filename + ":(" + toString(*d) + ")" + archive;