Merge "[MTE] Enable ASYNC MTE in the Zygote." am: b3f5d59011 am: 721e9ef1a1

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1548868

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: If46d61229e06f6125604e8987a0a50a065087b61

cmds/app_process/Android.bp

@@ -62,4 +62,13 @@ cc_binary {
     // Create a symlink from app_process to app_process32 or 64
     // depending on the target configuration.
     symlink_preferred_arch: true,
+
+    // Enable ASYNC MTE in the zygote, in order to allow apps and the system
+    // server to use MTE. We use ASYNC because we don't expect the pre-fork
+    // zygote to have substantial memory corruption bugs (as it's primarily Java
+    // code), and we don't want to waste memory recording malloc/free stack
+    // traces (which happens in SYNC mode).
+    sanitize: {
+        memtag_heap: true,
+    },
 }