Why does FBSD always assume it's on an 8080 CPU?

[Chris H.]

Thank you Kris, and all who took the time to respond.

Quoting Kris Kennaway <kris at obsecurity.org>:

> On Fri, Jan 26, 2007 at 08:45:15PM -0800, Chris H. wrote:
>> Hello and thank you for your response...
>>
>> Quoting Mike Jakubik <mikej at rogers.com>:
>>
>> >Chris H. wrote:
>> >>
>> >>CPU: AMD Athlon(tm) XP (1102.51-MHz 686-class CPU)
>> >>Origin = "AuthenticAMD"  Id = 0x680  Stepping = 0
>> >>Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE> 
>> AMD
>> >>Features=0xc0400800<SYSCALL,MMX+,3DNow+,3DNow>
>> >>
>> >>That I simply build world/kernel with an clean (empty) make.conf
>> >>and add the following during port(s) building to attain optimum results
>> >>given my CPU for this current biuld?
>> >>
>> >>CPUTYPE?=pentium4
>> >>
>> >>COPTFLAGS= -march=pentium4 -mmmx -m3dnow -m3dnow+ -msse -msse2
>> >
>> >Why are you using "pentium4" with an Athlon XP CPU? use "athlonxp"
>> >instead. Also, don't modify the COPTFLAGS.
>> >
>>
>> Ooops. I've changed it to:
>>
>> CPUTYPE?=athlon-4
>> CFLAGS+= -march=athlon-4 -mmmx -m3dnow -m3dnow+ -msse -msse2
>>
>> Look a little better? :)
>
> No, the CFLAGS is still entirely superfluous.  Just setting CPUTYPE
> will DTRT.
>
> Kris
>
Yea, I discovered that shortly after my response - the build of Python and
Perl barfed using the long CFLAGS+= string. I shortened it to simply:
CFLAGS+= -march=athlon-4
Why? You ask? Well, in the past (late 4, and all 5.x) many (most?) builds
continued to echo the MNO-CPUFEATURE that the kernel always recognised &
echoed during boot (All INTEL PIII's). But it appears that MAKE & 6 have
no trouble with just the CPUTYPE?= , as everything that I've built (some
100+ apps) echo: -march=athlon-4 -march=athlon-4 during the entire build.
*Clearly* reinforcing your /brilliant/ and /insightful/ response. :)
I LOVE 6! I must admit, I was apprehensive about upgrading any further
along than I had. Things got a bit wobbly towards the end of 4 and all
through 5 - for me on the 55 some servers I'm running here. But WOW!
What a change. Smoothe as silk and MUCH faster. Thank you Kris, and all
whom contributed to this WONDERFUL next phase/ version! I got my first copy
more years ago than I care to admit. A search for "where's ELVI" in
altavista turned up a copy on a campus server (we all know /which/ campus).
No I wasn't a student. But it was just sitting there, and I couldn't
resist. I downloaded everything and loaded it - Goodbye M$DOS; the rest
was history. I was hooked. I never looked back. :)
Thanks again, and to who made this possible.

--Chris



-- 
panic: kernel trap (ignored)



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FreeBSD 5.4-RELEASE-p12 (SMP - 900x2) Tue Mar 7 19:37:23 PST 2006
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