Add more details to broadcastIntent trace events.

Bug: 336385821
Test: manual
Flag: com.android.server.am.trace_receiver_registration
Change-Id: I8fb251e3d505571dfeec7ac8593415c16abe8e04

1 files changed, 44 insertions, 9 deletions

diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index f7278e9f986d..a7da9dea1074 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -15338,15 +15338,50 @@ public class ActivityManagerService extends IActivityManager.Stub
             BackgroundStartPrivileges backgroundStartPrivileges,
             @Nullable int[] broadcastAllowList,
             @Nullable BiFunction<Integer, Bundle, Bundle> filterExtrasForReceiver) {
-        final int cookie = BroadcastQueue.traceBegin("broadcastIntentLockedTraced");
-        final int res = broadcastIntentLockedTraced(callerApp, callerPackage, callerFeatureId,
-                intent, resolvedType, resultToApp, resultTo, resultCode, resultData, resultExtras,
-                requiredPermissions, excludedPermissions, excludedPackages, appOp,
-                BroadcastOptions.fromBundleNullable(bOptions), ordered, sticky,
-                callingPid, callingUid, realCallingUid, realCallingPid, userId,
-                backgroundStartPrivileges, broadcastAllowList, filterExtrasForReceiver);
-        BroadcastQueue.traceEnd(cookie);
-        return res;
+        final int cookie = traceBroadcastIntentBegin(intent, resultTo, ordered, sticky,
+                callingUid, realCallingUid, userId);
+        try {
+            final int res = broadcastIntentLockedTraced(callerApp, callerPackage, callerFeatureId,
+                    intent, resolvedType, resultToApp, resultTo, resultCode, resultData,
+                    resultExtras, requiredPermissions, excludedPermissions, excludedPackages,
+                    appOp, BroadcastOptions.fromBundleNullable(bOptions), ordered, sticky,
+                    callingPid, callingUid, realCallingUid, realCallingPid, userId,
+                    backgroundStartPrivileges, broadcastAllowList, filterExtrasForReceiver);
+            return res;
+        } finally {
+            traceBroadcastIntentEnd(cookie);
+        }
+    }
+
+    private static int traceBroadcastIntentBegin(Intent intent, IIntentReceiver resultTo,
+            boolean ordered, boolean sticky, int callingUid, int realCallingUid, int userId) {
+        if (!Flags.traceReceiverRegistration()) {
+            return BroadcastQueue.traceBegin("broadcastIntentLockedTraced");
+        }
+        if (Trace.isTagEnabled(Trace.TRACE_TAG_ACTIVITY_MANAGER)) {
+            final StringBuilder sb = new StringBuilder("broadcastIntent: ");
+            sb.append(callingUid); sb.append('/');
+            final String action = intent.getAction();
+            sb.append(action == null ? null : action); sb.append('/');
+            sb.append("0x"); sb.append(Integer.toHexString(intent.getFlags())); sb.append('/');
+            sb.append(ordered ? "O" : "_");
+            sb.append(sticky ? "S" : "_");
+            sb.append(resultTo != null ? "C" : "_");
+            sb.append('/');
+            sb.append('u'); sb.append(userId);
+            if (callingUid != realCallingUid) {
+                sb.append('/');
+                sb.append("sender="); sb.append(realCallingUid);
+            }
+            return BroadcastQueue.traceBegin(sb.toString());
+        }
+        return 0;
+    }
+
+    private static void traceBroadcastIntentEnd(int cookie) {
+        if (Trace.isTagEnabled(Trace.TRACE_TAG_ACTIVITY_MANAGER)) {
+            BroadcastQueue.traceEnd(cookie);
+        }
     }
 
     @GuardedBy("this")