[Solved] Crash on Android latest tip

Android
1

I am getting a crash on Android from the latest JUCE tip. 

These seem to be the relevant logcat lines:

D/dalvikvm(11402): Trying to load lib /data/app-lib/com.nodeaudio.myapp-1/libjuce_jni.so 0x41f457d0

I/libblt_hw( 1810): Library closed (handle = 0, fd = 32)

I/JUCE    (11402): *** Call to getEnv() when system not initialised

I/JUCE    (11402): JUCE Assertion failure in juce_android_SystemStats.cpp:113

I/JUCE    (11402): *** Leaked objects detected: 1 instance(s) of class AndroidTypeface

I/JUCE    (11402): JUCE Assertion failure in juce_LeakedObjectDetector.h:95

I/JUCE    (11402): *** Leaked objects detected: 1 instance(s) of class Typeface

I/JUCE    (11402): JUCE Assertion failure in juce_LeakedObjectDetector.h:95

D/Zygote  ( 1804): Process 11402 exited cleanly (1)

I/ActivityManager( 2230): Process com.nodeaudio.myapp (pid 11402) has died.

 

2

Would need an actual crash trace to be any help. That log just tells us that the process finished, nothing else.

3

OK I've sent you the full adb logcat output from the debug apk, via email. 

4

Finally managed to track this one down. I had a few hoops to jump through to get the ndk-gdb debugger to attach to the app process - I had to add a Thread.sleep in the java activity for a couple seconds to give the debugger time to attach before it crashed.

Anyhow it was due to a module that has an issue with JUCE on Android  - danlin's FontAwesome wrapper module. 

5

Hi adamski,

Thank you for sending me your stack trace. In deed, the problem is that danlin's FontAwesome wrapper is calling juce::Typeface::createSystemTypefaceFor before JUCE is fully initialized. This is because juce::Typeface::createSystemTypefaceFor is called from the static initializer of a global instance of FontAwesomeHelper here. This is another example of why it is bad to have global variables. It is better to replace this with a singleton object. You can use juce_DeclareSingleton and friends for this (modules/juce_core/memory/juce_Singleton.h).

Fabian

6

Thx for this tip.

I fix this...

7

Just to say that danlin has now fixed the issue with the FontAwesome wrapper on Android. Thank you :)

And apologies to JUCE team for the red herring ! Thanks also to Fabian for helping to debug the issue.