[Bug ld/17592] x86-64 linker generates wrong PLT for large model

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17592

--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Michael Matz from comment #5)
> (In reply to H.J. Lu from comment #4)
> > When there is a large readonly section,  it makes no differences between
> > 
> > text, plt, readonly, got
> > 
> > and
> > 
> > text, readonly, plt, got
> > 
> > since text needs to reach plt and plt needs to reach got.
> 
> Yes, but text reaching PLT is trivial with the large code model.  But PLT
> reaching GOT requires changing the PLT layout.  The reason for my idea
> of moving the PLT was to avoid doing that.  And with a large readonly only
> the latter layout achieves that.  So I think that should be the default
> layout.

Putting readonly data between text makes this even worse:

https://sourceware.org/bugzilla/show_bug.cgi?id=16685

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