[Bug ld/31795] ld.bfd makes ELFs of type ET_EXEC for static PIEs when load address is non-0

[mintsuki at protonmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=31795

--- Comment #32 from mintsuki <mintsuki at protonmail dot com> ---
(In reply to H.J. Lu from comment #31)
> (In reply to mintsuki from comment #30)
> > Basically, it tries to find a PHDR which contains the RELA section, and if
> > it find it, it subtracts the PHDR's virtual address and adds its offset in
> > order to find the offset of the RELA section inside the ELF file itself.
> 
> In glibc, we know it is a static PIE.  We relocate PT_DYNAMIC segment only if
> it is ET_DYN.

So what is the issue? And in any case, it doesn't feel right to me to have this
behaviour in ld just to work around quirks of a specific ELF loader out of
many.

If anything, it needs to be handled in glibc, and the behaviour of ld should be
reverted to match gold and lld.

Just my opinion of course.

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