[project @ 2005-04-28 15:28:05 by simonmar]

[ghc-hetmet.git] / ghc / compiler / deSugar / DsForeign.lhs

diff --git a/ghc/compiler/deSugar/DsForeign.lhs b/ghc/compiler/deSugar/DsForeign.lhs
index e861ef3..b909c57 100644 (file)
--- a/ghc/compiler/deSugar/DsForeign.lhs
+++ b/ghc/compiler/deSugar/DsForeign.lhs
@@ -530,6 +530,30 @@ mkFExportCBits c_nm maybe_target arg_htys res_hty is_IO_res_ty cc
           Nothing -> empty
           Just hs_fn -> text "extern StgClosure " <> ppr hs_fn <> text "_closure" <> semi
 
+   -- the only reason for making the mingw32 (anything targetting PE, really) stick
+   -- out here is that the GHCi linker isn't capable of handling .ctors sections
+  useStaticConstructors 
+#if defined(mingw32_HOST_OS)
+       = False
+#else
+       = True
+#endif  
+
+  initialiser
+     = case maybe_target of
+          Nothing -> empty
+          Just hs_fn 
+          | not useStaticConstructors -> empty
+          | otherwise ->
+            vcat
+             [ text "static void stginit_export_" <> ppr hs_fn
+                  <> text "() __attribute__((constructor));"
+             , text "static void stginit_export_" <> ppr hs_fn <> text "()"
+             , braces (text "getStablePtr"
+                <> parens (text "(StgPtr) &" <> ppr hs_fn <> text "_closure")
+                <> semi)
+             ]
+
   -- finally, the whole darn thing
   c_bits =
     space $$
@@ -560,7 +584,8 @@ mkFExportCBits c_nm maybe_target arg_htys res_hty is_IO_res_ty cc
      ,   if res_hty_is_unit then empty
             else text "return cret;"
      , rbrace
-     ]
+     ] $$
+    initialiser
 
 -- NB. the calculation here isn't strictly speaking correct.
 -- We have a primitive Haskell type (eg. Int#, Double#), and