On Mon, Dec 22, 2008 at 04:16:50PM -0500, Christoph Hellwig wrote:
> The kdb arch code for i386 and x86_64 is to 98% essentially the same
> modulo a few tiniy differences that crept in over the years. The real
> differences are:
>
> - the register handling due to the additional registers and slightly
> different ABI on x86_64
> - setjmp / longjmp is different assembly code
> - i386 has an stackdepth command. I don't really see why it
> doesn't exist for x86_64, but at least right now it's not there
I'll stick this item on my todo list.
> - x86_64 has a cpu_pda command. AFAIK the PDA doesn't exist on i386
> in that form, so it's one to stay
> - x86_64 registers a die notifier. This looks like it would apply
> to i386 too, but I'd like to leave it to an expert.
Any experts around who may know why this is only on x86_64?
>
> The patch elow just merges all files. A slightly cleaner version might
> be to have a kdba_regs_{32,64}.c for the register stuff instead of
> ifdefs.
I've looked over this whole patch. I don't think there's much point in
going further and getting rid of the ifdefs. I'll do some testing
tomorrow, but I currently don't see any reason why I shouldn't include
this patch in the next patch set.
mh
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