Subject: Elf on SPARC?
To: None <port-sparc@NetBSD.ORG, tech-userlevel@NetBSD.ORG,>
From: Eduardo E. Horvath <email@example.com>
Date: 11/04/1997 09:31:25
Since the subject of Linux emulation on SPARC came up I figure it's a good
time to ask a few emulation/toolchain questions.
I'm interested in advice about how to build a native ELF userland, and
most importantly, toolchain for NetBSD SPARC. Is there a relatively
painless way to do this?
On Mon, 3 Nov 1997, Jason Thorpe wrote:
> NetBSD does this whole thing with a thin emulation layer. Native
> executables run under the "netbsd" emulation. Writing the compatibility
> module is fairly straightforward. Not much more difficult than duplicating
> all those constants and structures, really. And it saves the maintanence
> nightmare of keeping all that duplicated information in synch.
Has anyone considered what's involved in emulating a NetBSD environment on
NetBSD. Or rather, a different NetBSD environment on NetBSD. I want to
switch to an SPARC elf64 format but still be able to run SPARC a.out
On a similar note, what is the significance of ARCH and MACHINE_ARCH? I
remenber that the m68k ports has ARCH set to m68k and MACHINE_ARCH to the
particular machine type: sun3x, mac68k, amiga. Most of the compilation is
based on ARCH; all the machine dependent arch directories seem to use
ARCH. I want to use a different set of arch directories but maintain
What I really want is some way to use a different arch, say sparc64, if it
exists, but default to the standard sparc arch if it doesen't. Is that
possible? What would start to break if I switched to a sparc64 ARCH?
P.S. Anyone consider switching native NetBSD SPARC to elf executables?
Eduardo Horvath firstname.lastname@example.org
"Cliffs are for climbing. That's why God invented grappling hooks."
- Benton Frasier