cuttlefish: Add a fullmte target.

Bug: 273575148
Change-Id: I3f6a4a3516a44b44e83a50475fbd820ddd1a2f08

target/product/fullmte.mk

@@ -0,0 +1,26 @@
+#
+# Copyright (C) 2023 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.
+#
+
+# Enables more comprehensive detection of memory errors on hardware that
+# supports the ARM Memory Tagging Extension (MTE), by building the image with
+# MTE stack instrumentation and forcing MTE on in SYNC mode in all processes.
+# For more details, see:
+# https://source.android.com/docs/security/test/memory-safety/arm-mte
+ifeq ($(filter memtag_heap,$(SANITIZE_TARGET)),)
+  SANITIZE_TARGET := $(strip $(SANITIZE_TARGET) memtag_heap memtag_stack)
+  SANITIZE_TARGET_DIAG := $(strip $(SANITIZE_TARGET_DIAG) memtag_heap)
+endif
+PRODUCT_PRODUCT_PROPERTIES += persist.arm64.memtag.default=sync