From: "Amit S. Kale" <amitkale@emsyssoft.com>
Organization: EmSysSoft
To: George Anzinger <george@mvista.com>, Andrew Morton <akpm@osdl.org>
Subject: Re: kgdb support in vanilla 2.6.2
Date: Wed, 3 Mar 2004 10:38:39 +0530
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On Wednesday 03 Mar 2004 5:22 am, George Anzinger wrote:
> Andrew Morton wrote:
> > George Anzinger <george@mvista.com> wrote:
> >> Often it is not clear just why we are in the stub, given that
> >>we trap such things as kernel page faults, NMI watchdog, BUG macros and
> >> such.
> >
> > Yes, that can be confusing.  A little printk on the console prior to
> > entering the debugger would be nice.
>
> That assumes that one can do a printk and not run into a lock.  Far better
> IMNSHO is to provide a simple way to get it from gdb.  One can then even
> provide a gdb macro to print the relevant source line and its surrounds.  I
> my lighter moments I call this the comefrom macro :)  In my kgdb it would
> look like:
>
> l * kgdb_info.called_from

How about echoing "Waiting for gdb connection" stright into the serial line 
without any encoding? Since gdb won't be connected to the other end, and many 
a times a minicom could be running at the other end, it'll give a user an 
indication of kgdb being ready.
-- 
Amit Kale
EmSysSoft (http://www.emsyssoft.com)
KGDB: Linux Kernel Source Level Debugger (http://kgdb.sourceforge.net)

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