From owner-freebsd-hackers  Thu Nov  7 14:13: 6 2002
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From: Sam <sam@pcuf.fi>
Reply-To: sam@pcuf.fi
To: freebsd-hackers@FreeBSD.org
Subject: cpu class & features
Date: Thu, 7 Nov 2002 17:12:46 -0500
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I'm writing an application that needs info on the machine cpu architectur=
e,
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 v=
alues
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 i3=
86),
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 suppos=
e
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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