I486_CPU and I586_CPU removed from GENERIC kernel [was Re: svn commit: r205307 - head/sys/i386/conf]

[Ivan Voras]

On 19 March 2010 07:33, Garrett Cooper <yanefbsd at gmail.com> wrote:
> On Thu, Mar 18, 2010 at 6:16 PM, Xin LI <delphij at freebsd.org> wrote:
>> Author: delphij
>> Date: Fri Mar 19 01:16:53 2010
>> New Revision: 205307
>> URL: http://svn.freebsd.org/changeset/base/205307
>>
>> Log:
>>  SSE is enabled by default about 5 years ago so there is no point pretending
>>  that we support I486 and I586 CPUs in the GENERIC kernel, users wants these
>>  support would have to build a custom kernel to explicitly disable SSE
>>  anyways.

SSE in the userland you mean? Regardless, I don't think there is now
reason for compiling everything as for i386. E.g. why not add at least
-mtune=generic or even also -march=i686 to default gcc options?

http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html