[GHC] #12147: GHC's Linker Should Support Relocation Type 42

[GHC]

#12147: GHC's Linker Should Support Relocation Type 42
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        Reporter:  gershomb          |                Owner:
            Type:  bug               |               Status:  merge
        Priority:  high              |            Milestone:  8.0.2
       Component:  Runtime System    |              Version:  8.0.1
  (Linker)                           |
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2303
       Wiki Page:                    |
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Comment (by thomie):

 Quoting @erikd in https://phabricator.haskell.org/D2303#67070:
 > I'm pretty sure that will be handled by the Linux distros. They wouldn't
 ship an GNU `as` until their `glibc` handled these new relocations.

 We have our first victim of this assumption:
 https://github.com/snowleopard/hadrian/issues/259#issuecomment-224618414.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12147#comment:13>
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