[GHC] #13265: perf-llvm build fails with "Too many sections: 123418 (>= 65280)"

[GHC]

#13265: perf-llvm build fails with "Too many sections: 123418 (>= 65280)"
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        Reporter:  erikd             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Building GHC      |  Unknown/Multiple
  failed                             |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by olsner):

 Which platform/OS was this on, and does it reproduce differently
 with/without `-fllvm`?

 If the platform binary format indeed doesn't support many sections we
 probably just need to tweak the conditions for the `SplitSections` default
 value. If it's happening on Linux or with ELF, it seems something less
 trivial is going on.

 The sections are supposed to get merged when linking an executable, so
 "support many sections" here is more about doing that merge in the default
 linker scripts than actually having binary format extensions for >64k
 sections.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13265#comment:2>
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