[GHC] #7621: Cross-build for QNX ARM smashes stack when using FunPtr wrappers

[GHC]

#7621: Cross-build for QNX ARM smashes stack when using FunPtr wrappers
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    Reporter:  singpolyma                        |       Owner:               
        Type:  bug                               |      Status:  new          
    Priority:  normal                            |   Milestone:  7.8.1        
   Component:  Compiler (FFI)                    |     Version:  7.7          
    Keywords:  qnx unregisterised cross-compile  |          Os:  QNX          
Architecture:  arm                               |     Failure:  Runtime crash
  Difficulty:  Unknown                           |    Testcase:               
   Blockedby:                                    |    Blocking:  7610         
     Related:                                    |  
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Comment(by simonmar):

 Ok, someone will need to debug this then.  It could be a problem with
 `libffi`.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7621#comment:9>
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