From owner-freebsd-hackers  Thu Nov  7 17:59:49 2002
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Date: Thu, 7 Nov 2002 17:59:48 -0800 (PST)
From: Oleg Polyakov <opolyakov@yahoo.com>
Subject: Re: cpu class & features
To: freebsd-hackers@FreeBSD.ORG
Cc: sam@pcuf.fi
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There is a way how FreeBSD kernel do it - /sys/i386/i386/identcpu.c and some
other files in that directory.

Also there is a port/package - /usr/ports/misc/cpuid

>I'm writing an application that needs info on the machine cpu >architecture,
>the cpu class, and the cpu features.
>
>The machine cpu architecture seems to be available through
>sysctl CTL_HW HW_MACHINE_ARCH. However, I can't find any mention
>of what string values this returns. Is there a list of possible current
>values somewhere?
>
>For cpu class, I can't seem to find anything. The include file
><machine/cputypes.h> has the kind of info I'm looking for defined (for >i386),
but I can't seem to find if it is available for userland >programs.
>
>CPU features seem to be defined in <machine/specialreg.h> (for i386), >but I
can't find if they are available for userland programs either. I >suppose they
could be parsed from dmesg, but that would be a pretty >hacky way of doing it.
Is there any better way?
>
>Any help would be appreciated.
>
>Sam, sam@pcuf.fi 

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