Remote console output

[Michael Snyder]

alsp wrote:
> Hi,
> 
> I hope this is the correct mailing list for this, sorry if it isn't.
> 
> I'm experimenting with remote GDB debugging at the moment - I've got a
> simple program that prints to the console using printf which I can
> successfully run and debug with gdbserver and a gdb client.
> 
> As I expected, the printf output is appearing on the gdbserver console
> rather than the client gdb console. However, I was wondering if there is a
> way to change this behaviour so that any console output from the executing
> program appears on the client gdb console. How can I do this?
> 
> I'm sure there must be a way of doing this for debugging on embedded devices
> that have no display?
> 
> Thanks for any help.
> 
> Alan

With embedded devices, you may have a standard library that cooperates 
with gdb and the gdb stub.  In that case, the printf function will be 
implemented so as to send a special "O" packet to gdb, containing the
text to be printed.

If your target is linux, you would have to modify the glibc version of 
printf.