Hello Geert,

The attached patches add kernel support for userspace NPTL bits for m68k.

Since the draft m68k/ColdFire NPTL ABI was posted at 
http://marc.info/?l=linux-m68k&m=119644992713696&w=2 several issues 
surfaced that called for syscall equivalents of the vDSO helpers; the 
main reason for the syscalls is that GLIBC does not support linking in 
vDSO for static binaries.

Another reason is that I'm having problems implementing user-space 
atomic_cmpxchg (for ColdFire) and context switching for user-space TP 
(both m68k and ColdFire).  I've spent quite some time trying to figure 
these two out, but couldn't make everything work reliably.  I'll follow 
up on this in a different thread.

These patches were tested on a ColdFire board running a 2.6.29 kernel, 
and the system passed GLIBC's nptl tests.

The one issue I know of with this patch is that strace needs update to 
pretty print the new [negative] syscalls.

Does the patches look fine?

Thanks,

--
Maxim K.
CodeSourcery