How do you break into gdb while rack is running?

Development
1

Teh inerwebs say ctrl-c will do it, but when I type ctlr-c it kills gdb and rack completely. I’m on windows running in MSYS2.

2

Ctrl-Z works for me on Linux to send SIGTSTP to gdb. I don’t remember if it works for the MSYS2 shell.

3

No, that also kills the whole process (for me). But thanks for the tip.

4

Press F12 with Rack focused.

5

hey, that works! now, once I’m in there how do I see where all the threads are, esp the ui thread? bt just shows trap from the f12 key.

Thanks for the tip!!

6

Debugging programs with multiple threads

short answer, info threads and then thread <id>

7

ooh - very cool! How do you know which thread is the UI thread?

8

Andrew’s naming convention is pretty clear, shouldn’t be too hard to determine from the method and filename. usually.