Debugging

Desktop Mode

The easiest way to do GDB Debugging via Clickable is desktop mode and can be started by running clickable desktop --gdb.

Alternatively a GDB Server can be started with clickable desktop --gdbserver <port> (just choose any port, e.g. 3333). Check for an option to do GDB Remote Debugging in your IDE and connect to localhost:<port>. To connect a GDB Client run gdb <app-binary> -ex 'target remote localhost:<port>'.

To analyze errors in memory access run clickable desktop --valgrind.

On Device

Two terminals are required to do debugging on the device, one to start the gdbserver and the other one to start gdb. In the first terminal run clickable gdbserver and in the second one clickable gdb. This method is limited to apps that are started via their own binary file.

The clickable gdbserver command provides the server at localhost:3333. In theory one could connect to that one from within any IDE. But to actually make it work, one needs to provide the corresponding libc6 debug symbols. Otherwise the App won’t start due to a segfault.

For detailed instructions on how to use gdb check out gdb documentation.