Re: [uml-devel] UML-patches to prepare UML/s390

[Blaisorblade <blaisorblade@yahoo.it>]

On Tuesday 26 April 2005 13:31, Bodo Stroesser wrote:
> Blaisorblade wrote:
> > Other issues follow, which refer to copied code going out-of-date wrt. my
> > local tree (which I have snapshotted some time ago, after I started
> > writing this mail). This is the problem with copying code - and you're
> > starting experiencing it!
> >
> > * important changes for TLS support, clone(), and so on.
>
> I'm going to implement TLS support in UML/s390. I could do this in
> arch/um/sys-s390/syscalls.c/sys_clone() without any need to change generic
> UML code.
> But I guess, for i386 there will be a need for arch-specific code in
> copy_thread(), maybe something like arch_copy_thread().
> If so, s390 TLS support should be inserted using in the same manner.
> Do you already have some code for this, that I could base on?

On my web-site I've uploaded my personal devel-tree snapshot against -rc3. 
Currently I've had to add a "clear_flushed_tls()" to copy_thread(), which 
probably should be wrapped in a arch_copy_thread() (with a macro/inline in 
some header).

As a side note: the TLS code currently does not work yet, so don't rely on it. 
There are also some issues to (later?) consider, which are indicated in the 
patch itself; and there will be something to add to the host SKAS patch, 
because the current implementation would be a bit too slow probably.
-- 
Paolo Giarrusso, aka Blaisorblade
Skype user "PaoloGiarrusso"
Linux registered user n. 292729
http://www.user-mode-linux.org/~blaisorblade




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