[Bug ld/20989] Every 64-bit Solaris 12/SPARC executable dies with SIGILL

[amodra at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=20989

--- Comment #4 from Alan Modra <amodra at gmail dot com> ---
Created attachment 9724
  --> https://sourceware.org/bugzilla/attachment.cgi?id=9724&action=edit
lightly tested fix

It is a bug in optimisation of sequences loading addresses from the GOT.  You
can't convert a GOT indirect load to GOT relative when the relative offset is
outside the range of possible sethi, xor values.  This happens with
-Ttext=0x100000000 which results in your gld testcase having
_GLOBAL_OFFSET_TABLE_ = 0x100100a10.  The relative offset to zero, the proper
value for the undefined weak symbol, is too large.

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