From: "Timothy A. Seufert" <tas@mindspring.com>
To: Neil Russell <caret@c-side.com>,
David Riley <oscar@the-rileys.net>,
linuxppc-dev@lists.linuxppc.org
Subject: Re: PPC byte ordering
Date: Mon, 30 Oct 2000 01:12:14 -0800 [thread overview]
Message-ID: <v04220803b622eb4a1108@[10.0.0.42]> (raw)
In-Reply-To: <20001028172451.A10220@lx.c-side.com>
At 5:24 PM -0700 10/28/00, Neil Russell wrote:
>It would in theory be possible to have the kernel run big-endian as it is
>and have certain user programs run little endian by setting the LE bit in
>the MSR register for the process in question. The real problem here is
>that you have to add a *lot* of code to system calls to make this work.
>There are a few system calls that this would be real difficult, such
>as ioctl(). I once looked into doing this for the MIPS with SVR4 UNIX.
The other real problem is that Linus Torvalds has already said that
he will never ever in a million years accept a patch which attempts
to do such a thing, so you'd have to fork the kernel to do it.
According to Linus, architectures are either big or little-endian,
not both. A sane position considering the syscall ugliness you
mention...
Tim Seufert
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2000-10-30 9:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-10-28 20:50 PPC byte ordering David Riley
2000-10-29 0:24 ` Neil Russell
2000-10-30 9:12 ` Timothy A. Seufert [this message]
2000-07-19 13:59 ` Heiko Jakob
2000-10-30 12:50 ` Gabriel Paubert
2000-10-30 12:18 ` Geert Uytterhoeven
2000-10-31 11:23 ` Timothy A. Seufert
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