[GHC] #9817: signal handlers in unix are passed garbage when using the signle threaded rts

[GHC]

#9817: signal handlers in unix are passed garbage when using the signle threaded
rts
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              Reporter:  redneb      |            Owner:  simonmar
                  Type:  bug         |           Status:  patch
              Priority:  normal      |        Milestone:
             Component:  Runtime     |          Version:  7.8.3
  System                             |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:  POSIX       |       Difficulty:  Unknown
       Type of failure:  Incorrect   |       Blocked By:
  result at runtime                  |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:  Phab:D515   |
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Comment (by Austin Seipp <austin@…>):

 In [changeset:"7ca5bb090ff78141fbe275b058a9e35ee496bd58/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="7ca5bb090ff78141fbe275b058a9e35ee496bd58"
 compiler: fix trac issue #9817

 Summary:
 When we call runHandlers, we must pass it a ForeignPtr. To ensure that
 this happens, we introduce a wrapper that receives a plain Ptr and
 converts it into a ForeignPtr. Then we adjust startSignalHandlers in
 rts/posix/Signals.c to call the wrapper instead of calling runHandlers
 directly.

 Reviewers: hvr, austin, rwbarton, simonmar

 Reviewed By: austin, simonmar

 Subscribers: simonmar, thomie, carter

 Differential Revision: https://phabricator.haskell.org/D515

 GHC Trac Issues: #9817
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9817#comment:4>
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