[Bug ld/27203] ld ppc: Emit R_PPC64_IRELATIVE instead of R_PPC64_JMP_SLOT for non-preemptible ifunc referenced by a DSO

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27203

--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Alan Modra from comment #2)
> I generated a patch to change powerpc64 to use R_PPC64_IRELATIVE in this
> situation, but now I'm wondering if such a change is a good idea.  IRELATIVE
> relocs must be resolved at program startup whereas JMP_SLOT can be resolved
> lazily.  So we'd be slowing down program startup for no benefit at all if
> the function is never called, and only saving ld.so symbol resolution time
> if the function is called.
> 
> I'm inclined to think this isn't a good idea.

Will it help

https://sourceware.org/bugzilla/show_bug.cgi?id=23169

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