sparc support

sparc support

[Joshua Brindle]

russel said one of his friends started a sparc port, i was wondering if anything had been done on this, particularly i'm interested in the wrapper.c for sparc since i know nothing of registers or kernel hacking, etc. 

I have a blade 2000 that i'd love to get selinux working on... 

if anyone knows any information I'd love to hear :) 

Thanks!

Joshua Brindle
UNIX Administrator
Southern Nazarene University



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Re: sparc support

[Paul Dwerryhouse]

On Tue, May 27, 2003 at 09:52:15PM -0500, Joshua Brindle wrote:
> russel said one of his friends started a sparc port, i was wondering
> if anything had been done on this, particularly i'm interested in the
> wrapper.c for sparc since i know nothing of registers or kernel
> hacking, etc. 

That'll be me. It's actually a port to sparc64, since I don't have
access to a plain old sparc processor at the moment. It doesn't work
yet, and I've got stuck, so I haven't done any work on it for a while.

You can download a patch for what I've done so far, here:

http://leapster.org/linux/lsm-sparc64-2.4.20-patch.3

I don't really know what I'm doing, however, so don't expect to see
anything sane there ;)

Basically I've used the i386 patch & Russell's arm port as a guide - so now,
it compiles and boots fine, but it doesn't seem to do what it's
supposed to do, and I didn't know what to do next.

And I'm sure I've screwed up the part for the 32-bit userspace.

Cheers,

Paul

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Paul Dwerryhouse						| PGP Key ID: 
Amsterdam, The Netherlands (X) <-> Melbourne, Australia ( )	| 0x6B91B584

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Re: sparc support

[Dave Dodge]

On Thu, 29 May 2003 08:25:28 +0200
Paul Dwerryhouse <paul@dwerryhouse.com.au> wrote:
> That'll be me. It's actually a port to sparc64, since I don't have
> access to a plain old sparc processor at the moment. It doesn't work
> yet, and I've got stuck, so I haven't done any work on it for a while.
[...]
> Basically I've used the i386 patch & Russell's arm port as a guide

Another example you can look at is the arm version from NSA's site,
in particular the linux-2.4.19-rmk4-pxa2-hh3-lsm1-arm.patch which
contains the arm-specific code. That implementation is slightly different
from Russell's and does not contain his 2.4.20 backport. I doubt it will
help much in your case, but it's another data point.

> And I'm sure I've screwed up the part for the 32-bit userspace.

I seem to recall from LKML that the 32-64 translation issue on Sparc64
is one of the reasons that sys_security was rejected for 2.5. I don't
know enough about Sparc64 Linux to recommend a workaround. Here's the
thread:

  http://www.ussg.iu.edu/hypermail/linux/kernel/0210.2/0854.html

                                      -Dave Dodge/dododge@alpha.ncsc.mil

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