[GHC] #11445: Turn on SplitSections by default

[GHC]

#11445: Turn on SplitSections by default
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        Reporter:  ezyang            |                Owner:
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Build System      |              Version:  8.0.1-rc1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:  11285
 Related Tickets:                    |  Differential Rev(s):  Phab:D1800
       Wiki Page:                    |
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Comment (by olsner):

 I assumed the linker problem and the required fix would be much more
 complicated, but after reading the patches it looks like it could simply
 be an issue with how we name sections on Windows builds? (See also
 https://sourceware.org/bugzilla/show_bug.cgi?id=19254#c3)

 That means maybe we "only" need:
 * unpatched binutils (but a new enough version)
 * `-Wa,-mbig-objs` for the assembler
 * fixed section names
 * a PE-compatible linker script for `ld -r` section merging

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11445#comment:19>
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