On 11/08/2010 22:31, Greg Fitzgerald wrote:
Is there any documentation or examples available that shows what needs to be linked to get a haskell executable to print "hello world"? Instead of using GHC to link, I'm interested in using gcc, ar, or link directly. For starters, what implements the entry point?
HSrtsmain.a provides the entry point, though you can provide your own if you want. The minimum set of libraries required would be the base package (for Prelude), and its dependencies, namely ghc-prim, integer-gmp, and of course the RTS and libffi. The -u flags you see in the linker command line are there because there is a circular dependency between the RTS and the base package, and they avoid us having to link those several times to reach a fixed point. Cheers, Simon