2.6.16 for linuxulator & 7.0 release

[Tijl Coosemans]

On Friday 16 March 2007 12:00:38 Alexander Leidinger wrote:
> In p4 we have the futex/TLS stuff for amd64 but because of the futexes  
> not completely right part it is not committed to current yet. As we  
> already have the futex and TLS stuff for i386 on a similar level in  
> current, I would say we should go ahead and sync the amd64 stuff. It  
> is not used by default, so we don't break existing linux stuff and we  
> get the benefit of more people being able to have a look at it and  
> play with it. So what are your opinions, shall we give jkim@ the green  
> light to MFp4 the futex/TLS stuff?

You should let an amd64 guru review the tls part in imho. I don't think
you can remove these lines for instance: (from linuxolator-p4.diff)

---  sys/amd64/amd64/cpu_switch.S.orig
+++  sys/amd64/amd64/cpu_switch.S
@@ -104,11 +104,12 @@
 	testl	$PCB_32BIT,PCB_FLAGS(%r8)
 	jz	1f				/* no, skip over */
 
-	/* Save segment selector numbers */
-	movl	%ds,PCB_DS(%r8)
-	movl	%es,PCB_ES(%r8)
-	movl	%fs,PCB_FS(%r8)
[...]
-	/* Restore segment selector numbers */
-	movl	PCB_DS(%r8),%ds
-	movl	PCB_ES(%r8),%es
-	movl	PCB_FS(%r8),%fs