kgdb/Sandpoint -- patch & help needed

Hi,

Could somebody help me get kgdb working on this platform? I'm totally
stuck with this problem of stuff crashing on my Sandpoint, and there's
no way I could do anything about it without a debugger.

Here are my humble attempts. Basically there's already support for
kgdb on the ppc, but not for Sandpoint specifically. getDebugChar and
putDebugChar are defined for the 8xx UART, but the Sandpoint uses the
standard 16650 UART. So I took the i386 kgdb patch and took out the
parts that I need from it -- gdbserial.c, some Makefile diffs, and
some changes in serial.c and main.c (left as is from the i386 patch, I
just changed #ifdef CONFIG_X86_REMOTE_DEBUG to CONFIG_KGDB). For the
rest of the stuff (traps, stub) I rely on the existing kgdb support
that's in the ppc tree already. However, with this patch the kernel
hangs right after saying "Now booting the kernel". I don't even see
how these changes could affect the boot process so early.

I'm attaching the patch. It's against Mark's latest 2.4.0-test2
snapshot (that's in Area51 on ftp.mvista.com). Could someone please
look at it and see what I did wrong and why it doesn't work?

Thanks a lot in advance!

(I'm also attaching the .config that I'm using, for what it's worth.)


--
Alex Shnitman                            | http://www.debian.org
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