Proposal for STT_GNU_IFUNC and R_*_IRELATIVE

[Alan Modra]

Is it true that the new IRELATIVE relocation should only appear in
.plt, and the .plt entries involved are all the size size?  If so, ld
can ensure that all such .plt entries are adjacent and emit two new
tags giving the array location and size.  No need for new relocations
at all.  Also should make ld.so a little faster.

-- 
Alan Modra
Australia Development Lab, IBM