Powerpc64 does not generate copy relocation for shared library variable

[Alan Modra]

On Wed, Jul 31, 2019 at 12:10:25PM +0530, Umesh Kalappa wrote:
> Agree for PPC64 and why not the same with PPC32 ?

Different ABIs.  More specifically, non-PIC on ppc32 can generate
32-bit absolute addresses relatively cheaply (lis; addi), so non-PIC
on ppc32 is faster than PIC.  Like ix86.  And like ix86, copy
relocations are used to prevent dynamic text relocations on those
non-PIC addresses.

On ppc64 it is almost always better to load a 64-bit address from
memory rather than building it inline from a five insn sequence.  That
means non-PIC on ppc64 isn't much of a win.   Thus code is usually
generated as PIC.

-- 
Alan Modra
Australia Development Lab, IBM