[GHC] #8734: 7.8.1 rc1 ghci won't load compiled files

GHC ghc-devs at haskell.org
Thu Feb 6 01:17:49 UTC 2014


#8734: 7.8.1 rc1 ghci won't load compiled files
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        Reporter:  George                       |            Owner:
            Type:  bug                          |           Status:  closed
        Priority:  high                         |        Milestone:  7.8.1
       Component:  Documentation                |          Version:
      Resolution:  invalid                      |  7.8.1-rc1
Operating System:  MacOS X                      |         Keywords:
 Type of failure:  Incorrect result at runtime  |     Architecture:
       Test Case:                               |  Unknown/Multiple
        Blocking:                               |       Difficulty:
                                                |  Unknown
                                                |       Blocked By:
                                                |  Related Tickets:
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Comment (by George):

 Thanks, makes sense. Can you confirm my understanding? to load compiled
 object files into ghci users must compile with the -dynamic-too option.
 Once bug #8736 is fixed :load will load a compiled object file into ghci.

 If so then the release note might say:

 {{{
 On Linux, FreeBSD and Mac OS X, GHCi now uses the system dynamic linker by
 default, instead of its built in (static) object linker. This is more
 robust cross-platform, and fixes many long-standing bugs (for example:
 constructors and destructors, weak symbols, etc work correctly, and
 several edge cases in the RTS are fixed.)

 As a result of this, GHCi (and Template Haskell) must now load dynamic
 object files, not static ones. To get dynamic object files, you must
 compile with the new compilation flag, -dynamic-too, which  causes GHC to
 emit both static and dynamic object files. GHC itself still defaults to
 static linking.
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8734#comment:6>
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