Re: kgdb support in vanilla 2.6.2

From: Tom Rini
Date: Wed Mar 03 2004 - 11:07:53 EST


On Wed, Mar 03, 2004 at 10:38:39AM +0530, Amit S. Kale wrote:
> On Wednesday 03 Mar 2004 5:22 am, George Anzinger wrote:
> > Andrew Morton wrote:
> > > George Anzinger <george@xxxxxxxxxx> 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.

It's not "GDB is ready" it's "GDB is ready now because ..."

--
Tom Rini
http://gate.crashing.org/~trini/
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