Re: cpuflags (optimal compiler flags for building)

["Pouya D. Tafti" <p.d.tafti%gmail.com@localhost>]

[Pouya Tafti]
>>> I see the same on a Core 2 Duo (I don't know what the correct output
>>> would be).  Here is the output from cpuflags -v (version 1.22):
>>>
>>> . /usr/pkg/share/cpuflags/subr_NetBSD
>>> . /usr/pkg/share/cpuflags/subr_gcc
>>> . /usr/pkg/share/cpuflags/subr_x86
>>> ARCH            : -march=prescott
>>> FEATURES        : -mfpmath=sse -msse3
>>> CPUFLAGS        : -mfpmath=sse -msse3 -march=prescott
>>> GCC version     : 4.1.3
>>> OS              : 'NetBSD'
>>> OS version      : '5.99.3'
>>> hw.model        : 'Intel 686-class'
>>> hw.machine      : 'amd64'
>>> hw.machine_arch : 'x86_64'
>>> CPU             : 'Intel Pentium III (Katmai) (686-class), 2527.15
>>> MHz, id 0x10676'
>>> cpu0: Intel Pentium III (Katmai) (686-class), 2527.15 MHz, id 0x10676
>>> cpu0: features bfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
>>> cpu0: features bfebfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX>
>>> cpu0: features bfebfbff<FXSR,SSE,SSE2,SS,HTT,TM,SBF>
>>> cpu0: features2
>>>
>>> 8e3fd<SSE3,DTES64,MONITOR,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE41>
>>> cpu0: features3 20100800<SYSCALL/SYSRET,XD,EM64T>
>>> cpu0: "Intel(R) Core(TM)2 Duo CPU     T9400  @ 2.53GHz"
>>> cpu0: I-cache 32KB 64B/line 8-way, D-cache 32KB 64B/line 8-way
>>> cpu0: L2 cache 6MB 64B/line 24-way
>>> cpu0: ITLB 128 4KB entries 4-way
>>> cpu0: DTLB 256 4KB entries 4-way, 32 4MB entries 4-way
>>> cpu0: Initial APIC ID 1
>>> cpu0: Cluster/Package ID 0
>>> cpu0: Core ID 1
>>> cpu0: family 06 model 07 extfamily 00 extmodel 01

[David Brownlee]
>>        Aha - this is a cpuctl bug - its reporting the CPU as a
>>        'Intel Pentium III (Katmai) (686-class)'
>>        which cpuflags diligently maps to pentium3, then trys to "guess up"
>>        to prescott. Could you open a PR on cpuctl for this?

[Pouya Tafti]
> I think this issue has come up before:
>
> <http://mail-index.netbsd.org/port-amd64/2008/11/24/msg000581.html>
>
> I can file a PR when I get home this evening.

I have submitted a PR (port-amd64/40145):

<http://www.netbsd.org/cgi-bin/query-pr-single.pl?number=40145>

(This is my first time; hopefully I didn't do something wrong!)

-- 
Pouya D. Tafti
<http://san-serriffe.org/>