[PATCH] D19995: Optimize access to global variable references in PIE mode when linker supports copy relocations for PIE

[Xinliang David Li via llvm-commits]

On Sat, May 7, 2016 at 11:45 AM, Joerg Sonnenberger <joerg at netbsd.org>
wrote:

> joerg added a comment.
>
> In http://reviews.llvm.org/D19995#424195, @davidxl wrote:
>
> > Also note this is not something new introduced by this patch. Non-pie
> case
> >  already does it.
>
>
> One reason a  lot of OS people are pushing for PIE is to get rid of copy
> relocations.


Do you mean that the reason people using PIE is to avoid copy relocs or
something else?  Also any references to your claim?


> Again, please do not add another instance of them. The behavior can be
> obtained without any such regressions.
>

except that some may consider this progression, not regression.   This new
behavior is also controllable with an option. The default setting is
subject to debate.

David






>
>
> http://reviews.llvm.org/D19995
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20160507/b9d9e0fd/attachment.html>