[GHC] #15808: Master sefaults on windows during aeson build when stage2 libs have dwarf enabled.

[GHC]

#15808: Master sefaults on windows during aeson build when stage2 libs have dwarf
enabled.
-------------------------------------+-------------------------------------
        Reporter:  AndreasK          |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.7
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by AndreasK):

 I've spent some quality time with gdb the last few days and documenting
 progress here:

 * aeson uses TH which via the GHCi machinery links in base (among other
 things).
 * During linking of base we find initialization code in base originating
 from foreign exports
 * The initialization code contains relocations.
 * In particular we want to jump to `foreignExportStablePtr` at the end of
 this function.
 * But something during relocation goes wrong and we jump to a wrong
 address.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15808#comment:3>
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