diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..9c6e08a
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,26 @@
+//
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+// Header only.
+cc_library_headers {
+    name: "libgsl",
+    host_supported: true,
+    export_include_dirs: ["include"],
+    cflags: ["-Wall", "-Werror"],
+    vendor_available: true,
+}
+
+// Tests pending approval of external/Microsoft-unittest-cpp: http://b/32512867
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..c1ce0f4
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,14 @@
+name: "Microsoft-GSL"
+description: "The Guideline Support Library (GSL) contains functions and types that are suggested for use by the C++ Core Guidelines maintained by the Standard C++ Foundation. This repo contains Microsoft\'s implementation of GSL."
+third_party {
+  url {
+    type: GIT
+    value: "https://github.com/Microsoft/GSL"
+  }
+  version: "7d78b743e43ecba06ca47426d03d9d16076dec16"
+  last_upgrade_date {
+    year: 2019
+    month: 2
+    day: 1
+  }
+}
diff --git a/MODULE_LICENSE_MIT b/MODULE_LICENSE_MIT
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/MODULE_LICENSE_MIT
diff --git a/NOTICE b/NOTICE
new file mode 120000
index 0000000..7a694c9
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1 @@
+LICENSE
\ No newline at end of file
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..7529cb9
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+include platform/system/core:/janitors/OWNERS