(b/278924166): log stack trace for debugging (14267b16) · Commits · e / os / android_frameworks_base

services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java

+36 −0

Original line number	Diff line number	Diff line
		@@ -3195,6 +3195,10 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle);
		DevicePolicyData policy = getUserData(userHandle);
		if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) {
		Slogf.d(LOG_TAG, "Adding " + adminReceiver + " for user " + userHandle
		+ " to list of removing admins.");
		logStackTrace("removeActiveAdminLocked");

		policy.mRemovingAdmins.add(adminReceiver);
		sendAdminCommandLocked(admin,
		DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED,
		@@ -18377,7 +18381,15 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		pushActiveAdminPackagesLocked(userHandle);
		saveSettingsLocked(userHandle);
		updateMaximumTimeToLockLocked(userHandle);

		Slogf.d(LOG_TAG,
		"Removing device admin " + adminReceiver + " from user " + userHandle);
		logStackTrace("removeAdminArtifacts");

		policy.mRemovingAdmins.remove(adminReceiver);
		Slogf.d(LOG_TAG, "Current state of DevicePolicyData#mRemovingAdmins for user "
		+ userHandle + ": " + policy.mRemovingAdmins);

		pushScreenCapturePolicy(userHandle);

		Slogf.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle);
		@@ -24272,4 +24284,28 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		return getRoleHolderPackageNameOnUser(
		RoleManager.ROLE_FINANCED_DEVICE_KIOSK, UserHandle.USER_ALL);
		}

		/**
		* TODO (b/278924166): this method is added for debugging the specified bug.
		* Remove once fixed.
		**/
		private void logStackTrace(String methodName) {
		try {
		StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace();
		String stackMethod;
		StringBuilder stackTrace = new StringBuilder();
		for (StackTraceElement s : stackTraceElements) {
		stackMethod = s.getMethodName();
		if (stackMethod == null \|\| stackMethod.equals("getThreadStackTrace")
		\|\| stackMethod.equals("getStackTrace")
		\|\| stackMethod.equals("logStackTrace")) {
		continue;
		}
		stackTrace.append(s.getMethodName() + ":" + s.getLineNumber() + "\n");
		}
		Slogf.d(LOG_TAG, "StackTrace for " + methodName + ": \n" + stackTrace);
		} catch (Exception e) {
		Slogf.d(LOG_TAG, "Unable to get stacktrace");
		}
		}
		}