 LANG=C QT_QPA_PLATFORM=ubuntumirclient gdb unity8-dash
GNU gdb (Ubuntu 7.12-0ubuntu3) 7.12
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from unity8-dash...Reading symbols from /usr/lib/debug/.build-id/30/cfcc5487bf26bceb4332243fc8e21bf96854f2.debug...done.
done.
(gdb) r
Starting program: /usr/bin/unity8-dash
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffb5b414700 (LWP 17199)]
[New Thread 0x7ffb5ac13700 (LWP 17200)]
Loading module: 'libubuntu_application_api_desktop_mirclient.so.3.0.0'
[2017-01-25:10:31:38.786] [QPA] UbuntuClientIntegration: connection to Mir server failed.

[2017-01-25:10:31:38.786] Mir returned: "Failed to connect to server socket: No such file or directory"
[Thread 0x7ffb5ac13700 (LWP 17200) exited]
[Thread 0x7ffb5b414700 (LWP 17199) exited]
[Inferior 1 (process 17093) exited with code 01]
(gdb) q