Re: TSCs are a no-no on i386

From: "Richard B. Johnson" <root@chaos.analogic.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Jan-Benedict Glaw <jbglaw@lug-owl.de>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: TSCs are a no-no on i386
Date: Thu, 31 Jul 2003 07:11:42 -0400 (EDT)	[thread overview]
Message-ID: <Pine.LNX.4.53.0307310709150.3917@chaos> (raw)
In-Reply-To: <1059606259.10505.20.camel@dhcp22.swansea.linux.org.uk>

On Wed, 31 Jul 2003, Alan Cox wrote:

> On Mer, 2003-07-30 at 21:33, Jan-Benedict Glaw wrote:
> > Well... For sure, I can write a LD_PRELOAD lib dealing with SIGILL, but
> > how do I enable it for the whole system. That is, I'd need to give
> > LD_PRELOAD=xxx at the kernel's boot prompt to have it as en environment
> > variable for each and every process?
>
>
> /etc/ld.preload
>
> > That sounds a tad inelegant to me. Really, I'd prefer to see libstdc++
> > be compiled for i386 ...
>
> True
>

What is a runtime library doing with a TSC? That's the basic problem.
These things are for operating systems and, last time I checked, the
'C' runtime libraries weren't (but maybe GNU changed that definition, no?)

Cheers,
Dick Johnson
Penguin : Linux version 2.4.20 on an i686 machine (797.90 BogoMips).
            Note 96.31% of all statistics are fiction.