[GHC] #11388: Bad Windows PE handling in GHC runtime linker

[GHC]

#11388: Bad Windows PE handling in GHC runtime linker
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           Reporter:  awson          |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Runtime        |           Version:
  System (Linker)                    |
           Keywords:                 |  Operating System:  Windows
       Architecture:                 |   Type of failure:  Other
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 Playing with `-fsplit-sections` on Windows I've found a pile of ancient
 (it was borrowed from Hugs interpreter code and I don't even know when was
 it created), absolutely redundant and plain wrong code in RTS linker.

 Technically it is a bug, but it doesn't break things when used with
 current Windows binutils with no special linker scripts involved.

 OTOH, it slows down runtime linker on Windows noticeably and thus can be
 considered as a performance bug.

 I've attached the patch which fixes this.

 The nice side-effect for existing users is that GHCi now loads compiled
 object code much faster on Windows.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11388>
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