Initial implementation of HIDL-AIDL Telephony HAL translator

Bug: 203699028
Test: Boot and grep logcat against radiocompat
Change-Id: I182edf3b1fa39b30818e79a68fc586f12b677d19
diff --git a/radio/aidl/compat/service/hidl-utils.h b/radio/aidl/compat/service/hidl-utils.h
new file mode 100644
index 0000000..3f81a9b
--- /dev/null
+++ b/radio/aidl/compat/service/hidl-utils.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#pragma once
+
+#include <android/hidl/base/1.0/IBase.h>
+
+namespace android::hardware::hidl_utils {
+
+/**
+ * Link to a given HALs death and restart the current process in such a case.
+ *
+ * \param hal HAL to which death to link
+ */
+void linkDeathToDeath(sp<hidl::base::V1_0::IBase> hal);
+
+}  // namespace android::hardware::hidl_utils