[Bug ld/21448] References to constant data in shared libraries bloats 2.28 executables compared to 2.27

[amodra at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=21448

--- Comment #6 from Alan Modra <amodra at gmail dot com> ---
> But not because of anything special GCC does in the executable.

Normally a shared library variable would be accessed in a PIE by loading the
address of that variable from the GOT, just like it would in a shared library. 
Instead, HJ's copy reloc optimization makes a copy locally in the PIE that then
can be accessed using an insn with a PC-relative data access.

Contrary to your opinion, that is indeed something "special".

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