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Re: Enable 32-bit Alignment
- From: Alan Modra <amodra at bigpond dot net dot au>
- To: "Menezes, Evandro" <evandro dot menezes at amd dot com>
- Cc: binutils at sourceware dot org, "Meissner, Michael" <michael dot meissner at amd dot com>, "Harle, Christophe" <christophe dot harle at amd dot com>
- Date: Wed, 4 Jul 2007 10:33:34 +0930
- Subject: Re: Enable 32-bit Alignment
- References: <1E52B51E700FAF42ADA0B9432F7CCCD24907E7@SAUSEXMB1.amd.com> <20070630034742.GC497@bubble.grove.modra.org> <1E52B51E700FAF42ADA0B9432F7CCCD249090F@SAUSEXMB1.amd.com>
On Tue, Jul 03, 2007 at 07:09:01PM -0500, Menezes, Evandro wrote:
> Alan,
>
> > In the current i386_align_code, see comment "Adjust jump
> > offset" in block handling 16-bit mode. Now that larger nop
> > sequences are allowed, I think you should similarly adjust a
> > branch (if used) in 32-bit mode.
>
> I wonder if it's really a must to do this for P5 and earlier processors...
>
> Thoughts?
Is it so hard to do?
--
Alan Modra
IBM OzLabs - Linux Technology Centre