Re: running legacy apps compiled for 7.2 & 7.3 in x86-64

["Mike A. Harris" <mharris@xxxxxxxxxx>]

On Mon, 5 May 2003, Calvin Austin wrote:

>So looking through the archives, has anyone cleanly added the ia32 libraries
>back in. A glob on rh9 i386 packages didn't quite do the trick for me, all
>sorts of dependencies and postinstall failures to unravel.

A glob may be insufficient.  A proper installer would be nice to 
have, however for now, proper manual dependancy resolution may be 
necessary.  I'm sure there are probably some problems though in 
either case.  They're worth reporting in bugzilla though, or 
bringing up here at least.


>With Suse we experienced issues with floating point in 32bit emulation mode
>amongst other things. (running 32bit in 64bit os mode)

It is quite important to realize, that running 32bit binaries in
compatibility submode of long mode under a 64bit OS, that you are
not "emulating" 32bit code.  The 32bit code is running full steam
ahead on the raw processor in it's 32bit compatibility mode.  
There is no emulation occuring.

That said, I'm not aware of FPU related issues, but that is
something we'd definitely want to hear more about.  Do you have
more details about this?


-- 
Mike A. Harris     ftp://people.redhat.com/mharris
OS Systems Engineer - XFree86 maintainer - Red Hat