We have an embedded device running linux. What I type in can be echoed instantly in shell, but when I start gdb , I can not see any user input until I press the Enter key.Here is an example:
sh-4.3# ls
/tmp
sh-4.3# gdb
GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
Copyright (C) 2014 Free Software Foundation, Inc
This is free software: you are free to change and redistribute it.
<------(I already type "shell ls", but nothing echoed in the screen)
(gdb)shell ls <------(then I press Enter key, and things come out)
/tmp
What is the difference in these two situations?
