Re: kgdb support in vanilla 2.6.2

From: Amit S. Kale (amitkale_at_emsyssoft.com)
Date: 03/03/04

  • Next message: Andrew Morton: "Re: per-cpu blk_plug_list" 
    To: George Anzinger <george@mvista.com>, Andrew Morton <akpm@osdl.org>
Date:	Wed, 3 Mar 2004 10:38:39 +0530

    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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