[PATCH] PPC64 Linuxthreads tls.h M2

[Steven Munroe]

Franz Sirl writes:

 > Hmm, would it be possible to have a single sysdeps/powerpc/tls.h like
 > the other 32/64 arches? If not I'll move the current file down into
 > the powerpc32 dir.

The ABIs are very close so we should be able to converge some of the 
infrastructure. For tls.h it depends on a common usage of __thread_self 
and the rest should just work. I was waiting to see how PPC32 ended up ...

One thing nags at me. Does PPC32 need to be backward compatible to older 
libpthread implementations? If so this would complicate converging 
PPC32/PPC64. PPC64's first release is 2.2.5 and so far we don't need any 
symver changes to maintain compatibility.