[Crash-utility] Problem with "shell" command in crash

[Dave Anderson]

Raghuveer R wrote:

> I am having some problems using the "shell" command in crash.
>
>         If i execute "shell" command in crash, the input commands in the shell
> prompt do not get displayed properly. Here is what i see.
>
> crash> shell
> mac:/home/raghu # 2a  a.out  addr.c  crash-4.0-3.19         dump
>                 ^^^^^entered ls
> mac:/home/raghu # llm22:/home/raghu # llm22:/home/raghu # llm22:/home/raghu #
>                 ^^^^^enter      ^^^^^enter
>
> However, the problem disappears if i execute 'stty echo' or 'reset' in the shell prompt.
>
> mac:/home/raghu # llm22:/home/raghu #
>                 ^^^^entered stty echo
> mac:/home/raghu # echo This is fine
> This is fine
> mac:/home/raghu #
>
> Also, the problem is not found if i run crash in gdb.
> The problem is reproducible in the latest version of crash, crash-4.0-3.19.
>
> Anyone knows how to fix this?

Don't use it.

It's actually the built-in gdb's "shell" command that's the problem.
The command should be put on the "prohibited_list" array in
the top-level gdb_interface.c file.

To get into a shell, just enter "|" or "!" on the crash command
line.  I should better explain that capability better in the
"help output" page.

I'll do both in the next release.

Thanks,
  Dave