Merge "Add the timestamp of when the ANR was trigger." into main

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

@@ -64,6 +64,9 @@ import com.android.server.wm.WindowProcessController;
 import java.io.File;
 import java.io.PrintWriter;
 import java.io.StringWriter;
+import java.time.Instant;
+import java.time.ZoneId;
+import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.UUID;
 import java.util.concurrent.ExecutionException;
@@ -76,6 +79,9 @@ import java.util.concurrent.atomic.AtomicLong;
  * The error state of the process, such as if it's crashing/ANR etc.
  */
 class ProcessErrorStateRecord {
+    private static final DateTimeFormatter DROPBOX_TIME_FORMATTER =
+            DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSSZ");
+
     final ProcessRecord mApp;
     private final ActivityManagerService mService;
 
@@ -444,6 +450,13 @@ class ProcessErrorStateRecord {
             info.append("ErrorId: ").append(errorId.toString()).append("\n");
         }
         info.append("Frozen: ").append(mApp.mOptRecord.isFrozen()).append("\n");
+        if (timeoutRecord != null && timeoutRecord.mEndUptimeMillis > 0) {
+            long millisSinceEndUptimeMs = anrTime - timeoutRecord.mEndUptimeMillis;
+            String formattedTime = DROPBOX_TIME_FORMATTER.format(
+                    Instant.now().minusMillis(millisSinceEndUptimeMs)
+                            .atZone(ZoneId.systemDefault()));
+            info.append("Timestamp: ").append(formattedTime).append("\n");
+        }
 
         // Retrieve controller with max ANR delay from AnrControllers
         // Note that we retrieve the controller before dumping stacks because dumping stacks can