Question

this is related to my previous question. I’m trying to build Phone application from android 4.0.4 using maven (I’m adding framework_intermediates as dependency, so internal apis problems are solved), and I ran into this problem. Some parts of the logs are as follows:

Phone/src/com/android/phone/CallNotifier.java:[601,32] cannot find symbol
symbol  : variable EventLogTags

(the corresponding line in CallNotifier.java is: EventLog.writeEvent(EventLogTags.PHONE_UI_MULTIPLE_QUERY); )

Phone/src/com/android/phone/InCallScreen.java:[723,28] cannot find symbol
symbol  : variable EventLogTags

(the corresponding line in InCallScreen.java is: EventLog.writeEvent(EventLogTags.PHONE_UI_ENTER); )

So… it cannot find the class EventLogTags. There is actually a file Phone/src/com/android/phone/EventLogTags.logtags which has the following contents:

# See system/core/logcat/event.logtags for a description of the format of this file.

option java_package com.android.phone;

70301 phone_ui_enter
70302 phone_ui_exit
70303 phone_ui_button_click (text|3)
70304 phone_ui_ringer_query_elapsed
70305 phone_ui_multiple_query

Apparently, this file tells the system to use some particular tags to log important events in the system. I did a full grep, but could not find any file which defines the values PHONE_UI_ENTER, PHONE_UI_MULTIPLE_QUERY, etc. These are just logs, so I could just comment out these and get it working. But I don’t want to do this because I need to build this inside the entire aosp later on. So my question is, how do I get this to compile using maven, without modifying any file?

Answer 1

The Android build system code-generates a Java class out of .logtags files if needed. See: https://github.com/android/platform_build/blob/master/core/base_rules.mk

You will need to decipher the make rules and run that code generation yourself, I imagine.