[lug] windows on windows for linux?

[Timothy C. Klein]

* Ed Hill (ed at eh3.com) wrote:
> On Sun, 2002-03-24 at 05:42, Chan Kar Heng wrote:
> > greetings.
> > 
> > would anyone know of something that might be equivalent
> > to WOW64 (windows on windows 64) layer for linux?
> > or maybe the approach taken for migration to 64 bit
> > platform for linux?
> 
> 
> The Linux (and Unix) 32 -=> 64 bit porting procedure is often quite
> easy.  Its called a recompile.  Honestly.  For many user-space codes,
> its *that* simple.
> 
> I've developed C/C++ apps (mostly, scientific computing) on 32bit x86
> systems and then recompiled them to run on, for example, 64-bit Alpha-
> Linux, AIX, and Solaris boxen.  A recompile was it.  No porting, no
> tweaking, nada.  As long as your code intelligently handles the size of
> ints/pointers/etc (and there are headers/libs to assist with this) then
> theres no need for a binary compatibility layer.  Your source code,
> compiler, and libraries *ARE* the compatibility layer.
> 

It also seems that most of the Linux kernel is 32/64 bit clean already
any way, too.  Lot of pointers in linux are guaranteed to be 64 bit
pointers even on 32 bit archs.  I think libc might also have this
feature ( I *think* that is how they got around the 2GB file size
limit).  So I bet it is a very painless transition.

Tim

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== Timothy Klein || teece at silverklein.net   ==
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