Add a bindService sequence counter

This counter will be emitted in system_server and the bound app
and will help associate bindService requests all the way from binding app
through the system_server and to the bound app

Test: Manual
Bug: 271944973
Change-Id: I16994935a573311eeb82ed389104b94855a95878

core/java/android/app/ActivityThread.java

@@ -849,8 +849,10 @@ public final class ActivityThread extends ClientTransactionHandler
         @UnsupportedAppUsage
         Intent intent;
         boolean rebind;
+        long bindSeq;
         public String toString() {
-            return "BindServiceData{token=" + token + " intent=" + intent + "}";
+            return "BindServiceData{token=" + token + " intent=" + intent
+                    + " bindSeq=" + bindSeq + "}";
         }
     }
 
@@ -1107,12 +1109,13 @@ public final class ActivityThread extends ClientTransactionHandler
         }
 
         public final void scheduleBindService(IBinder token, Intent intent,
-                boolean rebind, int processState) {
+                boolean rebind, int processState, long bindSeq) {
             updateProcessState(processState, false);
             BindServiceData s = new BindServiceData();
             s.token = token;
             s.intent = intent;
             s.rebind = rebind;
+            s.bindSeq = bindSeq;
 
             if (DEBUG_SERVICE)
                 Slog.v(TAG, "scheduleBindService token=" + token + " intent=" + intent + " uid="
@@ -1124,6 +1127,7 @@ public final class ActivityThread extends ClientTransactionHandler
             BindServiceData s = new BindServiceData();
             s.token = token;
             s.intent = intent;
+            s.bindSeq = -1;
 
             sendMessage(H.UNBIND_SERVICE, s);
         }

core/java/android/app/IApplicationThread.aidl

@@ -95,7 +95,7 @@ oneway interface IApplicationThread {
     void processInBackground();
     @UnsupportedAppUsage
     void scheduleBindService(IBinder token,
-            in Intent intent, boolean rebind, int processState);
+            in Intent intent, boolean rebind, int processState, long bindSeq);
     @UnsupportedAppUsage
     void scheduleUnbindService(IBinder token,
             in Intent intent);

services/core/java/com/android/server/am/ActiveServices.java

@@ -336,6 +336,13 @@ public final class ActiveServices {
      */
     final ArrayMap<ForegroundServiceDelegation, ServiceRecord> mFgsDelegations = new ArrayMap<>();
 
+    /**
+     * A global counter for generating sequence numbers to uniquely identify bindService requests.
+     * It is purely for logging purposes.
+     */
+    @GuardedBy("mAm")
+    private long mBindServiceSeqCounter = 0;
+
     /**
      * Whether there is a rate limit that suppresses immediate re-deferral of new FGS
      * notifications from each app.  On by default, disabled only by shell command for
@@ -4420,8 +4427,12 @@ public final class ActiveServices {
             try {
                 bumpServiceExecutingLocked(r, execInFg, "bind",
                         OomAdjuster.OOM_ADJ_REASON_BIND_SERVICE);
+                if (Trace.isTagEnabled(Trace.TRACE_TAG_ACTIVITY_MANAGER)) {
+                    Trace.instant(Trace.TRACE_TAG_ACTIVITY_MANAGER, "requestServiceBinding="
+                            + i.intent.getIntent() + ". bindSeq=" + mBindServiceSeqCounter);
+                }
                 r.app.getThread().scheduleBindService(r, i.intent.getIntent(), rebind,
-                        r.app.mState.getReportedProcState());
+                        r.app.mState.getReportedProcState(), mBindServiceSeqCounter++);
                 if (!rebind) {
                     i.requested = true;
                 }