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{-# LANGUAGE TemplateHaskell #-}
module Main where
import Language.Haskell.TH.Syntax
import Foreign.C.String
$(do
-- some architectures require a "_" symbol prefix...
-- GHC defines a LEADING_UNDERSCORE CPP constant to indicate this.
addForeignSource LangAsm
"#if defined(LEADING_UNDERSCORE)\n\
\.global \"_mydata\"\n\
\_mydata:\n\
\#else\n\
\.global \"mydata\"\n\
\mydata:\n\
\#endif\n\
\.ascii \"Hello world\\0\"\n"
return [])
foreign import ccall "&mydata" mystring :: CString
main :: IO ()
main = putStrLn =<< peekCString mystring
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