[Bug ld/19091] sh: FDPIC linker fails to produce DT_PLTGOT for some files

[bugdal at aerifal dot cx]

https://sourceware.org/bugzilla/show_bug.cgi?id=19091

--- Comment #2 from Rich Felker <bugdal at aerifal dot cx> ---
Even with no GOT, not PLT, and no function descriptors, it's possible to have
code which accesses local data via @GOTOFF displacements. If DT_PLTGOT is not
emitted in the output _DYNAMIC, there is no way for the caller (which gets the
GOT value from the dynamic linker, which in turn gets it from DT_PLTGOT) to
provide a correct GOT pointer when calling into the library, and thus any data
accesses via @GOTOFF displacements will be wrong.

I think DT_PLTGOT simply must always be emitted in FDPIC output. Would
something break if the size of the GOT is 0?

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