X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fghci%2FByteCodeItbls.lhs;h=fd39e44eb3d9a775ba1f2ffd8b3c137b598aa6fa;hb=fc9bbbab3fe56cf0ff5723abbdb0f496d257f34e;hp=887f637319560b597fa036d7f61ad4c66ed56a8b;hpb=89692d034948e58dd461639897690e2d3ab8cd44;p=ghc-hetmet.git

diff --git a/compiler/ghci/ByteCodeItbls.lhs b/compiler/ghci/ByteCodeItbls.lhs
index 887f637..fd39e44 100644
--- a/compiler/ghci/ByteCodeItbls.lhs
+++ b/compiler/ghci/ByteCodeItbls.lhs
@@ -6,6 +6,13 @@ ByteCodeItbls: Generate infotables for interpreter-made bytecodes
 \begin{code}
 {-# OPTIONS -optc-DNON_POSIX_SOURCE #-}
 
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+--     http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
 module ByteCodeItbls ( ItblEnv, ItblPtr(..), itblCode, mkITbls
                      , StgInfoTable(..)
                      ) where
@@ -21,7 +28,8 @@ import TyCon		( TyCon, tyConFamilySize, isDataTyCon, tyConDataCons )
 import Constants	( mIN_PAYLOAD_SIZE, wORD_SIZE )
 import CgHeapery	( mkVirtHeapOffsets )
 import FastString	( FastString(..) )
-import Util             ( lengthIs, listLengthCmp )
+import Util
+import Outputable
 
 import Foreign
 import Foreign.C
@@ -30,9 +38,9 @@ import Data.Bits	( Bits(..), shiftR )
 
 import GHC.Exts		( Int(I#), addr2Int# )
 import GHC.Ptr		( Ptr(..) )
-import GHC.Prim
 
-import Outputable
+import Debug.Trace
+import Text.Printf
 \end{code}
 
 %************************************************************************
@@ -46,10 +54,11 @@ newtype ItblPtr = ItblPtr (Ptr ()) deriving Show
 
 itblCode :: ItblPtr -> Ptr ()
 itblCode (ItblPtr ptr)
-   = (castPtr ptr)
-#ifdef GHCI_TABLES_NEXT_TO_CODE
-                 `plusPtr` (3 * wORD_SIZE)
-#endif
+ | ghciTablesNextToCode = castPtr ptr `plusPtr` conInfoTableSizeB
+ | otherwise            = castPtr ptr
+
+-- XXX bogus
+conInfoTableSizeB = 3 * wORD_SIZE
 
 type ItblEnv = NameEnv (Name, ItblPtr)
 	-- We need the Name in the range so we know which
@@ -112,7 +121,7 @@ make_constr_itbls cons
                          , code  = code
 #endif
                         }
-           qNameCString <- newCString $ dataConIdentity dcon 
+           qNameCString <- newArray0 0 $ dataConIdentity dcon 
            let conInfoTbl = StgConInfoTable {
                                  conDesc = qNameCString,
                                  infoTable = itbl
@@ -268,7 +277,7 @@ type HalfWord = Word16
 #endif
 
 data StgConInfoTable = StgConInfoTable {
-   conDesc   :: CString,
+   conDesc   :: Ptr Word8,
    infoTable :: StgInfoTable
 }
 
@@ -279,17 +288,32 @@ instance Storable StgConInfoTable where
    alignment conInfoTable = SIZEOF_VOID_P
    peek ptr 
       = runState (castPtr ptr) $ do
+#ifdef GHCI_TABLES_NEXT_TO_CODE
            desc <- load
+#endif
            itbl <- load
+#ifndef GHCI_TABLES_NEXT_TO_CODE
+           desc <- load
+#endif
            return  
               StgConInfoTable 
-              { conDesc   = desc
+              { 
+#ifdef GHCI_TABLES_NEXT_TO_CODE
+                conDesc   = castPtr $ ptr `plusPtr` conInfoTableSizeB `plusPtr` desc
+#else
+                conDesc   = desc
+#endif
               , infoTable = itbl
               }
    poke ptr itbl 
       = runState (castPtr ptr) $ do
-           store (conDesc itbl)
+#ifdef GHCI_TABLES_NEXT_TO_CODE
+           store (conDesc itbl `minusPtr` (ptr `plusPtr` conInfoTableSizeB))
+#endif
            store (infoTable itbl)
+#ifndef GHCI_TABLES_NEXT_TO_CODE
+           store (conDesc itbl)
+#endif
 
 data StgInfoTable = StgInfoTable {
 #ifndef GHCI_TABLES_NEXT_TO_CODE