Subject: Re: build failure on bootxx_msdos
To: David Laight <firstname.lastname@example.org>
From: Thor Lancelot Simon <email@example.com>
Date: 12/02/2006 11:44:51
On Sat, Dec 02, 2006 at 10:32:18AM +0000, David Laight wrote:
> Also i386 the inlined code for memcpy() is seriously sub-optimal.
> (you don't want to be doing the 'rep movsb' with cx 0/1/2/3)
We're building the bootblocks with -mtune=i386. This may have something
to do with the pessimal code selection. No, I don't know why anyone might
think -mtune=i386 was a good idea, even for reasons of code density i486
should be just as good.
Thor Lancelot Simon firstname.lastname@example.org
"The liberties...lose much of their value whenever those who have greater
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of public debate." -John Rawls