Re: Why does C3 CPU downgrade in kernel 2.4.20?

From: Dave Jones (
Date: Thu Dec 12 2002 - 08:33:39 EST

On Thu, Dec 12, 2002 at 05:17:29PM +0800, Joseph wrote:
> Thanks for all response. :)
> I think I know more why it downgrades.
> But one more curious question.
> In the file, arch/i386/Makefile, under kernel 2.5.51.
> I found the C3 alignments , $(call check_gcc, -march=c3,-march=i486).
> Does the C3 CPU type be included in gcc compile option??
> I've downloaded the latest gcc 3.2.1 version.
> But I don't find the c3 options in the file gcc/config/i396/i386.c, i386.h
> or etc.

Not in a currently released gcc. CVS HEAD supports it, as will 3.3


| Dave Jones.
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