Index: lldb/include/lldb/Host/LibraryLoader.h
===================================================================
--- /dev/null
+++ lldb/include/lldb/Host/LibraryLoader.h
@@ -0,0 +1,36 @@
+//===-- LibraryLoader.h -----------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_Host_LibraryLoader_h
+#define liblldb_Host_LibraryLoader_h
+
+#include "llvm/ADT/StringRef.h"
+
+namespace lldb_private {
+class LibraryLoader {
+public:
+  LibraryLoader(llvm::StringRef library)
+      : LibraryLoader(library.str().c_str()) {}
+  ~LibraryLoader();
+
+  operator bool() const { return m_handle != nullptr; }
+
+  template <typename T> T *GetSymbol(llvm::StringRef symbol) {
+    return reinterpret_cast<T *>(GetSymbolImpl(symbol));
+  }
+
+protected:
+  LibraryLoader(const char *library);
+
+private:
+  void *GetSymbolImpl(llvm::StringRef symbol);
+  void *m_handle;
+};
+} // namespace lldb_private
+
+#endif
Index: lldb/source/Host/CMakeLists.txt
===================================================================
--- lldb/source/Host/CMakeLists.txt
+++ lldb/source/Host/CMakeLists.txt
@@ -70,6 +70,7 @@
     windows/HostInfoWindows.cpp
     windows/HostProcessWindows.cpp
     windows/HostThreadWindows.cpp
+    windows/LibraryLoader.cpp
     windows/LockFileWindows.cpp
     windows/PipeWindows.cpp
     windows/ProcessLauncherWindows.cpp
@@ -83,6 +84,7 @@
     posix/HostInfoPosix.cpp
     posix/HostProcessPosix.cpp
     posix/HostThreadPosix.cpp
+    posix/LibraryLoader.cpp
     posix/LockFilePosix.cpp
     posix/PipePosix.cpp
     posix/ProcessLauncherPosixFork.cpp
@@ -101,7 +103,7 @@
       macosx/cfcpp/CFCString.cpp
       )
     if(IOS)
-      set_property(SOURCE macosx/Host.mm APPEND PROPERTY 
+      set_property(SOURCE macosx/Host.mm APPEND PROPERTY
                COMPILE_DEFINITIONS "NO_XPC_SERVICES=1")
     endif()
 
Index: lldb/source/Host/posix/LibraryLoader.cpp
===================================================================
--- /dev/null
+++ lldb/source/Host/posix/LibraryLoader.cpp
@@ -0,0 +1,30 @@
+//===-- LibraryLoader.cpp ---------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Host/LibraryLoader.h"
+#include <dlfcn.h>
+
+using namespace lldb_private;
+using namespace llvm;
+
+LibraryLoader::LibraryLoader(const char *library) : m_handle(nullptr) {
+  m_handle = dlopen(library, RTLD_LAZY);
+}
+
+LibraryLoader::~LibraryLoader() {
+  if (m_handle) {
+    dlclose(m_handle);
+    m_handle = nullptr;
+  }
+}
+
+void *LibraryLoader::GetSymbolImpl(llvm::StringRef symbol) {
+  if (!m_handle)
+    return nullptr;
+  return dlsym(m_handle, symbol.str().c_str());
+}
Index: lldb/source/Host/windows/LibraryLoader.cpp
===================================================================
--- /dev/null
+++ lldb/source/Host/windows/LibraryLoader.cpp
@@ -0,0 +1,31 @@
+//===-- LibraryLoader.cpp ---------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Host/LibraryLoader.h"
+#include <windows.h>
+
+using namespace lldb_private;
+using namespace llvm;
+
+LibraryLoader::LibraryLoader(const char *library) : m_handle(nullptr) {
+  m_handle = reinterpret_cast<void *>(LoadLibraryA(library));
+}
+
+LibraryLoader::~LibraryLoader() {
+  if (m_handle) {
+    FreeLibrary(m_handle);
+    m_handle = nullptr;
+  }
+}
+
+void *LibraryLoader::GetSymbolImpl(llvm::StringRef symbol) {
+  if (!m_handle)
+    return nullptr;
+  return GetProcAddress(reinterpret_cast<HMODULE>(m_handle),
+                        symbol.str().c_str());
+}
Index: lldb/unittests/Host/CMakeLists.txt
===================================================================
--- lldb/unittests/Host/CMakeLists.txt
+++ lldb/unittests/Host/CMakeLists.txt
@@ -3,6 +3,7 @@
   FileSystemTest.cpp
   HostInfoTest.cpp
   HostTest.cpp
+  LibraryLoaderTest.cpp
   MainLoopTest.cpp
   NativeProcessProtocolTest.cpp
   ProcessLaunchInfoTest.cpp
Index: lldb/unittests/Host/LibraryLoaderTest.cpp
===================================================================
--- /dev/null
+++ lldb/unittests/Host/LibraryLoaderTest.cpp
@@ -0,0 +1,42 @@
+//===-- LibraryLoaderTest.cpp -----------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Host/LibraryLoader.h"
+#include "gtest/gtest.h"
+
+using namespace lldb_private;
+
+typedef size_t strlen_t(const char *str);
+
+class TestLibraryLoader : public LibraryLoader {
+public:
+  TestLibraryLoader(const char *library) : LibraryLoader(library) {}
+};
+
+TEST(LibraryLoaderTest, OperatorBool) {
+  // Loading a bogus library fails.
+  TestLibraryLoader bogus("bogus");
+  EXPECT_FALSE(static_cast<bool>(bogus));
+
+  // Loading ourselves succeeds.
+  TestLibraryLoader self(nullptr);
+  EXPECT_TRUE(static_cast<bool>(self));
+}
+
+TEST(LibraryLoaderTest, GetSymbol) {
+  TestLibraryLoader loader(nullptr);
+  EXPECT_TRUE(static_cast<bool>(loader));
+
+  strlen_t *test = loader.GetSymbol<strlen_t>("strlen");
+
+  ASSERT_NE(nullptr, test);
+  EXPECT_EQ((size_t)4, test("test"));
+
+  strlen_t *bogus = loader.GetSymbol<strlen_t>("bogus");
+  EXPECT_EQ(nullptr, bogus);
+}