Perhaps look at the plugins package source?
-- Don
On Thu, Apr 7, 2011 at 12:20 PM, Rob Nikander
Hi all,
I'd like to load a value from a .o file. I've got...
import ObjLink main = do initObjLinker loadObj "Thing.o" resolveObjs Just ptr <- lookupSymbol "Thing_value_closure"
Is that the correct symbol to load for the name "value" in module "Thing"? And if so, how to I get the haskell value out of the Ptr that I get from lookupSymbol? I found some code to do it and it works value :: Int, but it seg faults if value :: Integer, or something more complex like a function.
{-# LANGUAGE MagicHash #-} {-# LANGUAGE UnboxedTuples #-} ... let !(Ptr addr) = ptr in case addrToHValue# addr of (# hval #) -> hval
Is there some documentation for this that I'm missing? I'm looking at haddock with just type signatures, like this:
http://www.haskell.org/ghc/docs/7.0.3/html/libraries/ghc-7.0.3/ObjLink.html
(I'm a haskell beginner.)
thank you, Rob
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