module ByteCodeLink ( UnlinkedBCO, UnlinkedBCOExpr, assembleBCO,
ClosureEnv, HValue, filterNameMap,
- linkIModules, linkIExpr,
+ linkIModules, linkIExpr, linkFail,
iNTERP_STACK_CHECK_THRESH
) where
import ST ( runST )
import IArray ( array )
import MArray ( castSTUArray,
+ newInt64Array, writeInt64Array,
newFloatArray, writeFloatArray,
newDoubleArray, writeDoubleArray,
newIntArray, writeIntArray,
import PrelGHC ( BCO#, newBCO#, unsafeCoerce#,
ByteArray#, Array#, addrToHValue#, mkApUpd0# )
import IOExts ( fixIO )
+import Exception ( throwDyn )
+import Panic ( GhcException(..) )
import PrelArr ( Array(..) )
import ArrayBase ( UArray(..) )
import PrelIOBase ( IO(..) )
+import Int ( Int64 )
\end{code}
st_l1 <- addListToSS st_l0 ws
return (sizeSS st_l0, (st_i0,st_l1,st_p0,st_I0))
+ int64 (st_i0,st_l0,st_p0,st_I0) i
+ = do let ws = mkLitI64 i
+ st_l1 <- addListToSS st_l0 ws
+ return (sizeSS st_l0, (st_i0,st_l1,st_p0,st_I0))
+
addr (st_i0,st_l0,st_p0,st_I0) a
= do let ws = mkLitA a
st_l1 <- addListToSS st_l0 ws
= do st_I1 <- addToSS st_I0 (getName dcon)
return (sizeSS st_I0, (st_i0,st_l0,st_p0,st_I1))
- literal st (MachWord w) = int st (fromIntegral w)
- literal st (MachInt j) = int st (fromIntegral j)
- literal st (MachFloat r) = float st (fromRational r)
- literal st (MachDouble r) = double st (fromRational r)
- literal st (MachChar c) = int st c
- literal st other = pprPanic "ByteCodeLink.literal" (ppr other)
+ literal st (MachWord w) = int st (fromIntegral w)
+ literal st (MachInt j) = int st (fromIntegral j)
+ literal st (MachFloat r) = float st (fromRational r)
+ literal st (MachDouble r) = double st (fromRational r)
+ literal st (MachChar c) = int st c
+ literal st (MachInt64 ii) = int64 st (fromIntegral ii)
+ literal st (MachWord64 ii) = int64 st (fromIntegral ii)
+ literal st other = pprPanic "ByteCodeLink.literal" (ppr other)
ctoi_itbl st pk
= addr st ret_itbl_addr
= case pk of
CharRep -> stg_gc_unbx_r1_ret_info
IntRep -> stg_gc_unbx_r1_ret_info
+ WordRep -> stg_gc_unbx_r1_ret_info
AddrRep -> stg_gc_unbx_r1_ret_info
FloatRep -> stg_gc_f1_ret_info
DoubleRep -> stg_gc_d1_ret_info
-- Make lists of host-sized words for literals, so that when the
-- words are placed in memory at increasing addresses, the
-- bit pattern is correct for the host's word size and endianness.
-mkLitI :: Int -> [Word]
-mkLitF :: Float -> [Word]
-mkLitD :: Double -> [Word]
-mkLitA :: Addr -> [Word]
+mkLitI :: Int -> [Word]
+mkLitF :: Float -> [Word]
+mkLitD :: Double -> [Word]
+mkLitA :: Addr -> [Word]
+mkLitI64 :: Int64 -> [Word]
mkLitF f
= runST (do
return [w0]
)
+mkLitI64 ii
+ | wORD_SIZE == 4
+ = runST (do
+ arr <- newInt64Array ((0::Int),1)
+ writeInt64Array arr 0 ii
+ d_arr <- castSTUArray arr
+ w0 <- readWordArray d_arr 0
+ w1 <- readWordArray d_arr 1
+ return [w0,w1]
+ )
+ | wORD_SIZE == 8
+ = runST (do
+ arr <- newInt64Array ((0::Int),0)
+ writeInt64Array arr 0 ii
+ d_arr <- castSTUArray arr
+ w0 <- readWordArray d_arr 0
+ return [w0]
+ )
+
mkLitI i
= runST (do
arr <- newIntArray ((0::Int),0)
lookupCE :: ClosureEnv -> Either Name PrimOp -> IO HValue
lookupCE ce (Right primop)
- = do m <- lookupSymbol (primopToCLabel primop "closure")
+ = do let sym_to_find = primopToCLabel primop "closure"
+ m <- lookupSymbol sym_to_find
case m of
Just (Ptr addr) -> case addrToHValue# addr of
(# hval #) -> return hval
- Nothing -> pprPanic "ByteCodeLink.lookupCE(primop)" (ppr primop)
+ Nothing -> linkFail "ByteCodeLink.lookupCE(primop)" sym_to_find
lookupCE ce (Left nm)
= case lookupFM ce nm of
Just aa -> return aa
Nothing
- -> do m <- lookupSymbol (nameToCLabel nm "closure")
+ -> ASSERT2(isGlobalName nm, ppr nm)
+ do let sym_to_find = nameToCLabel nm "closure"
+ m <- lookupSymbol sym_to_find
case m of
Just (Ptr addr) -> case addrToHValue# addr of
(# hval #) -> return hval
- Nothing -> pprPanic "ByteCodeLink.lookupCE" (ppr nm)
+ Nothing -> linkFail "ByteCodeLink.lookupCE" sym_to_find
lookupIE :: ItblEnv -> Name -> IO (Ptr a)
lookupIE ie con_nm
Just (Ptr a) -> return (Ptr a)
Nothing
-> do -- try looking up in the object files.
- m <- lookupSymbol (nameToCLabel con_nm "con_info")
+ let sym_to_find1 = nameToCLabel con_nm "con_info"
+ m <- lookupSymbol sym_to_find1
case m of
Just addr -> return addr
Nothing
-> do -- perhaps a nullary constructor?
- n <- lookupSymbol (nameToCLabel con_nm "static_info")
+ let sym_to_find2 = nameToCLabel con_nm "static_info"
+ n <- lookupSymbol sym_to_find2
case n of
Just addr -> return addr
- Nothing -> pprPanic "ByteCodeLink.lookupIE" (ppr con_nm)
+ Nothing -> linkFail "ByteCodeLink.lookupIE"
+ (sym_to_find1 ++ " or " ++ sym_to_find2)
+
+linkFail :: String -> String -> IO a
+linkFail who what
+ = throwDyn (ProgramError $
+ unlines [ ""
+ , "During interactive linking, GHCi couldn't find the following symbol:"
+ , ' ' : ' ' : what
+ , "This may be due to you not asking GHCi to load extra object files,"
+ , "archives or DLLs needed by your current session. Restart GHCi, specifying"
+ , "the missing library using the -L/path/to/object/dir and -lmissinglibname"
+ , "flags, or simply by naming the relevant files on the GHCi command line."
+ , "Alternatively, this link failure might indicate a bug in GHCi."
+ , "If you suspect the latter, please send a bug report to:"
+ , " glasgow-haskell-bugs@haskell.org"
+ ])
-- HACKS!!! ToDo: cleaner
nameToCLabel :: Name -> String{-suffix-} -> String
projects / ghc-hetmet.git / blobdiff