[GHC] #9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess

[GHC]

#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output
from subprocess
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        Reporter:  juhpetersen       |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:
       Component:  Compiler          |                 Version:  7.11
      Resolution:                    |                Keywords:
Operating System:  Linux             |            Architecture:  aarch64
 Type of failure:  Installing GHC    |               Test Case:
  failed                             |                Blocking:
      Blocked By:                    |  Differential Revisions:
 Related Tickets:                    |
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Comment (by bgamari):

 Erikd, are you using gold? There is a bug in the arm bfd LD wherein the
 linker will use a `COPY` relocation where we wouldn't expect it. As you
 suggest chaos ensues as the object's info table is not preserved by the
 linker when the symbol definition is copied. This is one of the reasons
 why we require gold on arm. I'll try to pit together a more complete reply
 in the morning.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9673#comment:21>
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