patch applied (ghc): Retrieving the datacon of an arbitrary closure

[Ian Lynagh]

Sun Dec 10 03:29:44 PST 2006  Pepe Iborra <mnislaih at gmail.com>
  * Retrieving the datacon of an arbitrary closure
  
  This patch extends the RTS linker and the dynamic linker so that it is possible to find out the datacon of a closure in heap at runtime:
  - The RTS linker now carries a hashtable 'Address->Symbol' for data constructors
  - The Persistent Linker State in the dynamic linker is extended in a similar way.
  
  Finally, these two sources of information are consulted by:
  
  > Linker.recoverDataCon :: a -> TcM Name
  

    M! ./compiler/ghci/ByteCodeItbls.lhs -1 +1
    M ./compiler/ghci/ByteCodeLink.lhs +1
    M ./compiler/ghci/Linker.lhs -12 +96
    M ./compiler/ghci/ObjLink.lhs -1 +16
    M ./compiler/prelude/TysWiredIn.lhs +2
    M ./includes/Linker.h +3
    M ./rts/Linker.c -1 +65