Re-working of the breakpoint support

[ghc-hetmet.git] / compiler / ghci / ByteCodeItbls.lhs

diff --git a/compiler/ghci/ByteCodeItbls.lhs b/compiler/ghci/ByteCodeItbls.lhs
index 78d18c7..9b2dac0 100644 (file)
--- a/compiler/ghci/ByteCodeItbls.lhs
+++ b/compiler/ghci/ByteCodeItbls.lhs
@@ -22,6 +22,7 @@ import Constants      ( mIN_PAYLOAD_SIZE, wORD_SIZE )
 import CgHeapery       ( mkVirtHeapOffsets )
 import FastString      ( FastString(..) )
 import Util             ( lengthIs, listLengthCmp )
+import Outputable
 
 import Foreign
 import Foreign.C
@@ -32,7 +33,8 @@ import GHC.Exts               ( Int(I#), addr2Int# )
 import GHC.Ptr         ( Ptr(..) )
 import GHC.Prim
 
-import Outputable
+import Debug.Trace
+import Text.Printf
 \end{code}
 
 %************************************************************************
@@ -48,9 +50,12 @@ itblCode :: ItblPtr -> Ptr ()
 itblCode (ItblPtr ptr)
    = (castPtr ptr)
 #ifdef GHCI_TABLES_NEXT_TO_CODE
-                 `plusPtr` (3 * wORD_SIZE)
+                 `plusPtr` conInfoTableSizeB
 #endif
 
+-- XXX bogus
+conInfoTableSizeB = 3 * wORD_SIZE
+
 type ItblEnv = NameEnv (Name, ItblPtr)
        -- We need the Name in the range so we know which
        -- elements to filter out when unloading a module
@@ -83,15 +88,9 @@ cONSTR = CONSTR
 -- Assumes constructors are numbered from zero, not one
 make_constr_itbls :: [DataCon] -> IO ItblEnv
 make_constr_itbls cons
-   | listLengthCmp cons 8 /= GT -- <= 8 elements in the list
-   = do is <- mapM mk_vecret_itbl (zip cons [0..])
-       return (mkItblEnv is)
-   | otherwise
    = do is <- mapM mk_dirret_itbl (zip cons [0..])
        return (mkItblEnv is)
      where
-        mk_vecret_itbl (dcon, conNo)
-           = mk_itbl dcon conNo (vecret_entry conNo)
         mk_dirret_itbl (dcon, conNo)
            = mk_itbl dcon conNo stg_interp_constr_entry
 
@@ -258,27 +257,9 @@ byte6 w = fromIntegral (w `shiftR` 48)
 byte7 w = fromIntegral (w `shiftR` 56)
 
 
-vecret_entry 0 = stg_interp_constr1_entry
-vecret_entry 1 = stg_interp_constr2_entry
-vecret_entry 2 = stg_interp_constr3_entry
-vecret_entry 3 = stg_interp_constr4_entry
-vecret_entry 4 = stg_interp_constr5_entry
-vecret_entry 5 = stg_interp_constr6_entry
-vecret_entry 6 = stg_interp_constr7_entry
-vecret_entry 7 = stg_interp_constr8_entry
-
 #ifndef __HADDOCK__
 -- entry point for direct returns for created constr itbls
 foreign import ccall "&stg_interp_constr_entry" stg_interp_constr_entry :: Ptr ()
--- and the 8 vectored ones
-foreign import ccall "&stg_interp_constr1_entry" stg_interp_constr1_entry :: Ptr ()
-foreign import ccall "&stg_interp_constr2_entry" stg_interp_constr2_entry :: Ptr ()
-foreign import ccall "&stg_interp_constr3_entry" stg_interp_constr3_entry :: Ptr ()
-foreign import ccall "&stg_interp_constr4_entry" stg_interp_constr4_entry :: Ptr ()
-foreign import ccall "&stg_interp_constr5_entry" stg_interp_constr5_entry :: Ptr ()
-foreign import ccall "&stg_interp_constr6_entry" stg_interp_constr6_entry :: Ptr ()
-foreign import ccall "&stg_interp_constr7_entry" stg_interp_constr7_entry :: Ptr ()
-foreign import ccall "&stg_interp_constr8_entry" stg_interp_constr8_entry :: Ptr ()
 #endif
 
 
@@ -303,17 +284,32 @@ 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