need to know the "correct" way to modify pe.sc

[Jonathan Wilson]

Basicly, I need to do something like this:
   .tls : {
     *(.tls)
     *(.tls$)
     SORT (.tls$*)
   }
But I dont know where to put it.
Also, I dont know if any of the foo that is done for other area like this:
${RELOCATING+BLOCK(__section_alignment__)}
or like the special stuff for R_xxx
is needed for this thing.
Someone wanna tell me how to do this in the "right" way? (so I can get it 
into official Binutils as part of my TLS support work)