diff --git a/cc/libbuildversion/libbuildversion.cpp b/cc/libbuildversion/libbuildversion.cpp
new file mode 100644
index 0000000..d80d587
--- /dev/null
+++ b/cc/libbuildversion/libbuildversion.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2018 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.
+ */
+
+#include <build/version.h>
+
+#ifdef __ANDROID__
+#include <sys/system_properties.h>
+#endif
+
+namespace android {
+namespace build {
+
+#ifdef __ANDROID__
+
+std::string GetBuildNumber() {
+  const prop_info* pi = __system_property_find("ro.build.version.incremental");
+  if (pi == nullptr) return "";
+
+  std::string property_value;
+  __system_property_read_callback(pi,
+                                  [](void* cookie, const char*, const char* value, unsigned) {
+                                    auto property_value = reinterpret_cast<std::string*>(cookie);
+                                    *property_value = value;
+                                  },
+                                  &property_value);
+
+  return property_value;
+}
+
+#else
+
+extern "C" {
+  char soong_build_number[128] = "SOONG BUILD NUMBER PLACEHOLDER";
+}
+
+std::string GetBuildNumber() {
+  return soong_build_number;
+}
+
+#endif
+}  // namespace build
+}  // namespace android