Control character in gdb tui

Question

From https://sourceware.org/gdb/onlinedocs/gdb/TUI-Keys.html I'm trying to familiarize myself with gdb -tui and cannot get the control character to behave as expected. What am I missing here?

(gdb) ^X^A Undefined command: "". Try "help".

Control + shift do not work either. I'm using Debian Jessie with kde if that helps. Is it possible this is a desktop interface problem?

Interestingly, control-c works to send the kill signal to the process. I can also suspend with c-z and go back to konsole.

while risking at sounding dumb (and because you are using so many different conventions for your control-keys: you do mean (and press) Control+x-Control+x to enter/leave tui-mode, don't you? — umläute, Nov 28 '17 at 08:57
and to rule out any interference with your desktop, you could try running `gdb -tui` on the terminal (Control+Shift+1), where there's no X, KDE or whatelse getting in your way. — umläute, Nov 28 '17 at 09:01
I have a makefile target which does "gdb -tui". I run the make file target directly from bash in konsole. Sorry if the conventions are confusting. The "^X" stuff is copy/pasted after holding control and hitting 'x'. — Dale, Nov 28 '17 at 21:47
but afaict you are running `make` from within an x-terminal(-emulator) - so within KDE. I'm explicitely asking to run it without any X (by switching to tty1) — umläute, Nov 28 '17 at 21:50
that would be interesting to test, if only as a verification of an x conflict. This is a vulkan app so x is pretty much a requirement. I will definitely give it a try though. — Dale, Nov 28 '17 at 22:12
I stopped X, same behavior. See the accepted answer, that got it. — Dale, Nov 29 '17 at 04:35

score 1 · Accepted Answer · answered Nov 28 '17 at 10:04

1

As a workaround you can use these commands in recent versions of gdb:

tui enable
tui disable

answered Nov 28 '17 at 10:04

ks1322

That got it. Commenting out "set editing-mode vi" solved it. I would have never figured this out. Thank you – Dale Nov 29 '17 at 04:37

1 Answers1