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Re: [PATCH x86_64] Optimize access to globals in "-fpie -pie" builds with copy relocations


Hello!

> Ping.
>> Ping.
>>> Ping.
>>>> Ping.

It would probably help reviewers if you pointed to actual path
submission [1], which unfortunately contains the explanation in the
patch itself [2], which further explains that this functionality is
currently only supported with gold, patched with [3].

[1] https://gcc.gnu.org/ml/gcc-patches/2014-09/msg00645.html
[2] https://gcc.gnu.org/ml/gcc-patches/2014-09/txt2CHtu81P1O.txt
[3] https://sourceware.org/ml/binutils/2014-05/msg00092.html

After a bit of the above detective work, I think that new gcc option
is not necessary. The configure should detect if new functionality is
supported in the linker, and auto-configure gcc to use it when
appropriate.

I have also added a couple of linker experts in the CC.

Uros.


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