How can I 'getchar()' in module code?

[Bernd Petrovitsch]

On Mit, 2013-12-04 at 23:21 +0200, Daniel Baluta wrote:
> On Tue, Dec 3, 2013 at 4:20 PM, Bernd Petrovitsch
> <bernd at petrovitsch.priv.at> wrote:
> > On Die, 2013-12-03 at 08:38 -0500, Valdis.Kletnieks at vt.edu wrote:
> >> On Tue, 03 Dec 2013 20:35:41 +0800,  said:
> >> > For debugging purpose, I want something like 'getchar()' that can pause
> >> > execution in the module code. Do any candidates I can choose?
> 
> I think there is a way to stop execution :). Run your image under
> qemu, and use gdb to
> set breakpoints.

Yup.
Or you can run UML and use the regular gdb and probably even plain-old
getchar() as it runs as a user-space process.
The question is, if the interesting parts/drivers/subsystems are there
too.

	Bernd
-- 
Bernd Petrovitsch                  Email : bernd at petrovitsch.priv.at
                     LUGA : http://www.luga.at