Index: llvm/include/llvm/ExecutionEngine/Orc/ExecutionUtils.h
===================================================================
--- llvm/include/llvm/ExecutionEngine/Orc/ExecutionUtils.h
+++ llvm/include/llvm/ExecutionEngine/Orc/ExecutionUtils.h
@@ -287,6 +287,13 @@
   Create(ObjectLayer &L, std::unique_ptr<MemoryBuffer> ArchiveBuffer,
          GetObjectFileInterface GetObjFileInterface = GetObjectFileInterface());
 
+  /// Returns a list of filenames of dynamic libraries that this archive has
+  /// imported. This class does not load these libraries by itself. User is
+  /// responsible for making sure these libraries are avaliable to the JITDylib.
+  const std::vector<StringRef> &getImportedDynamicLibraries() const {
+    return ImportedDynamicLibraries;
+  }
+
   Error tryToGenerate(LookupState &LS, LookupKind K, JITDylib &JD,
                       JITDylibLookupFlags JDLookupFlags,
                       const SymbolLookupSet &Symbols) override;
@@ -297,10 +304,14 @@
                                    GetObjectFileInterface GetObjFileInterface,
                                    Error &Err);
 
+  Error buildObjectFilesMap();
+
   ObjectLayer &L;
   GetObjectFileInterface GetObjFileInterface;
+  std::vector<StringRef> ImportedDynamicLibraries;
   std::unique_ptr<MemoryBuffer> ArchiveBuffer;
   std::unique_ptr<object::Archive> Archive;
+  DenseMap<StringRef, MemoryBufferRef> ObjectFilesMap;
 };
 
 } // end namespace orc
Index: llvm/lib/ExecutionEngine/Orc/ExecutionUtils.cpp
===================================================================
--- llvm/lib/ExecutionEngine/Orc/ExecutionUtils.cpp
+++ llvm/lib/ExecutionEngine/Orc/ExecutionUtils.cpp
@@ -364,16 +364,11 @@
 
   for (const auto &KV : Symbols) {
     const auto &Name = KV.first;
-    auto Child = Archive->findSym(*Name);
-    if (!Child)
-      return Child.takeError();
-    if (*Child == None)
+    if (!ObjectFilesMap.count(*Name))
       continue;
-    auto ChildBuffer = (*Child)->getMemoryBufferRef();
-    if (!ChildBuffer)
-      return ChildBuffer.takeError();
+    auto ChildBuffer = ObjectFilesMap[*Name];
     ChildBufferInfos.insert(
-        {ChildBuffer->getBuffer(), ChildBuffer->getBufferIdentifier()});
+        {ChildBuffer.getBuffer(), ChildBuffer.getBufferIdentifier()});
   }
 
   for (auto ChildBufferInfo : ChildBufferInfos) {
@@ -392,6 +387,32 @@
   return Error::success();
 }
 
+Error StaticLibraryDefinitionGenerator::buildObjectFilesMap() {
+  DenseMap<uint64_t, MemoryBufferRef> MemoryBuffers;
+  DenseSet<uint64_t> Visited;
+  for (auto &S : Archive->symbols()) {
+    StringRef SymName = S.getName();
+    auto Member = S.getMember();
+    if (!Member)
+      return Member.takeError();
+    auto DataOffset = Member->getDataOffset();
+    if (!Visited.count(DataOffset)) {
+      Visited.insert(DataOffset);
+      auto Child = Member->getAsBinary();
+      if (!Child)
+        return Child.takeError();
+      if ((*Child)->isCOFFImportFile()) {
+        ImportedDynamicLibraries.push_back((*Child)->getFileName());
+        continue;
+      }
+      MemoryBuffers[DataOffset] = (*Child)->getMemoryBufferRef();
+    }
+    ObjectFilesMap[SymName] = MemoryBuffers[DataOffset];
+  }
+
+  return Error::success();
+}
+
 StaticLibraryDefinitionGenerator::StaticLibraryDefinitionGenerator(
     ObjectLayer &L, std::unique_ptr<MemoryBuffer> ArchiveBuffer,
     GetObjectFileInterface GetObjFileInterface, Error &Err)
@@ -401,6 +422,8 @@
 
   if (!this->GetObjFileInterface)
     this->GetObjFileInterface = getObjectFileInterface;
+  if (!Err)
+    Err = buildObjectFilesMap();
 }
 
 } // End namespace orc.
Index: llvm/tools/llvm-jitlink/llvm-jitlink.h
===================================================================
--- llvm/tools/llvm-jitlink/llvm-jitlink.h
+++ llvm/tools/llvm-jitlink/llvm-jitlink.h
@@ -45,6 +45,8 @@
   void modifyPassConfig(const Triple &FTT,
                         jitlink::PassConfiguration &PassConfig);
 
+  Error loadDynamicLibrary(StringRef FileName);
+
   using MemoryRegionInfo = RuntimeDyldChecker::MemoryRegionInfo;
 
   struct FileInfo {
@@ -77,6 +79,7 @@
   StringSet<> HarnessExternals;
   StringSet<> HarnessDefinitions;
   DenseMap<StringRef, StringRef> CanonicalWeakDefs;
+  DenseSet<StringRef> LoadedLibraries;
 
 private:
   Session(std::unique_ptr<orc::ExecutorProcessControl> EPC, Error &Err);
Index: llvm/tools/llvm-jitlink/llvm-jitlink.cpp
===================================================================
--- llvm/tools/llvm-jitlink/llvm-jitlink.cpp
+++ llvm/tools/llvm-jitlink/llvm-jitlink.cpp
@@ -1248,6 +1248,17 @@
   return SymInfoItr->second;
 }
 
+Error Session::loadDynamicLibrary(StringRef FileName) {
+  if (LoadedLibraries.count(FileName))
+    return Error::success();
+  LoadedLibraries.insert(FileName);
+  auto G = EPCDynamicLibrarySearchGenerator::Load(ES, FileName.data());
+  if (!G)
+    return G.takeError();
+  MainJD->addGenerator(std::move(*G));
+  return Error::success();
+}
+
 } // end namespace llvm
 
 static Triple getFirstFileTriple() {
@@ -1646,9 +1657,15 @@
       GetObjFileInterface = getObjectFileInterfaceHidden;
       break;
     }
-    return StaticLibraryDefinitionGenerator::Load(
+    auto G = StaticLibraryDefinitionGenerator::Load(
         S.ObjLayer, Path, S.ES.getExecutorProcessControl().getTargetTriple(),
         std::move(GetObjFileInterface));
+    if (!G)
+      return G.takeError();
+    for (auto FileName : (*G)->getImportedDynamicLibraries())
+      if (auto Err = S.loadDynamicLibrary(FileName))
+        return std::move(Err);
+    return G;
   };
 
   for (auto &LL : LibraryLoads) {