GDB arrow keys not working

Question

The up arrow key in gdb is not scrolling through previous commands on one of my ubuntu machines (kudu) but is working on another (similar) machine (cs13):

karl@kudu:~$ gdb --version
GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
karl@kudu:~$ uname -a
Linux kudu 3.13.0-55-generic #94-Ubuntu SMP Thu Jun 18 00:27:10 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

karl@cs13:~$ gdb --version
GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
karl@cs13:~$ uname -a
Linux cs13 3.13.0-53-generic #89-Ubuntu SMP Wed May 20 10:34:39 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

It doesn't work in gnome-terminal (TERM=xterm) and it also doesn't work in ctrl-alt-f1 (TERM=linux). I've also tried rlwrap gdb and socat READLINE EXEC:gdb with no success.

I have also downloaded and installed GDB 7.9.1, but the arrow keys don't work there either.

Note that the arrow keys are working in bash / other programs.

From the (gdb) prompt, what is the output of show editing? — steeldriver, Jul 01 '15 at 20:28
i just answered similar question at http://unix.stackexchange.com/questions/162820/gdb-up-arrow-doesnt-work/213595#213595 , take a look :) — 林果皞, Jul 02 '15 at 17:48

score 1 · Accepted Answer · edited Apr 13 '17 at 12:37

1

I had HISTSIZE= in my .bashrc, but it gets interpreted by gdb as a history size of zero. Adding the alias

alias gdb='HISTSIZE=70000000; /usr/local/bin/gdb "$@"'

to my .bashrc fixed the problem.

See https://unix.stackexchange.com/a/213595/121871 for other possible workarounds.

edited Apr 13 '17 at 12:37

Community

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answered Jul 02 '15 at 18:07

cronburg

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GDB arrow keys not working

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