I am writing a haptics driver for Allegro5 on android, but ex_haptic crashes on that platform, so I would like to debug it or at least get a stack trace. I found some instructions but they don't seem to work for me. How do I debug a native android app from the Linux command line?

Not sure if this is what you want, but Android studio has something called 'logcat' which is some kind of realtime trace. In Android Studio under Windows, I get to this via a button labelled 'Android Monitor'.

Here are a couple of links talking about logcat under linux. They may be what you already found.....

https://stackoverflow.com/questions/8633798/how-to-display-logcat-values-in-the-terminal-of-linux

https://developer.android.com/studio/command-line/logcat.html

Yes, logcat will be the most simple way. You can also run a remote gdb but it will take considerably more effort.

No, I didn't know about logcat. I will try it out and see if I can find out what is causing the crash. Thanks!