+{-# LANGUAGE CPP #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE ForeignFunctionInterface #-}
module Mate.MethodPool where
import qualified Data.ByteString.Lazy as B
import System.Plugins
-import Text.Printf
-
import Foreign.Ptr
import Foreign.C.Types
import Foreign.C.String
-import Foreign.StablePtr
import JVM.ClassFile
-import JVM.Converter
import Harpy
+#ifdef DEBUG
import Harpy.X86Disassembler
+import Text.Printf
+#endif
+
import Mate.BasicBlocks
import Mate.Types
import Mate.X86CodeGen
import Mate.Utilities
+import Mate.ClassPool
-foreign import ccall "get_mmap"
- get_mmap :: IO (Ptr ())
-
-foreign import ccall "set_mmap"
- set_mmap :: Ptr () -> IO ()
-
foreign import ccall "dynamic"
code_void :: FunPtr (IO ()) -> (IO ())
-foreign export ccall getMethodEntry :: CUInt -> Ptr () -> Ptr () -> IO CUInt
-getMethodEntry :: CUInt -> Ptr () -> Ptr () -> IO CUInt
-getMethodEntry signal_from ptr_mmap ptr_cmap = do
- mmap <- ptr2mmap ptr_mmap
- cmap <- ptr2cmap ptr_cmap
+foreign export ccall getMethodEntry :: CUInt -> CUInt -> IO CUInt
+getMethodEntry :: CUInt -> CUInt -> IO CUInt
+getMethodEntry signal_from methodtable = do
+ mmap <- get_methodmap >>= ptr2methodmap
+ tmap <- get_trapmap >>= ptr2trapmap
+ vmap <- get_virtualmap >>= ptr2virtualmap
let w32_from = fromIntegral signal_from
- let mi@(MethodInfo method cm sig) = cmap M.! w32_from
- -- TODO(bernhard): replace parsing with some kind of classpool
- cls <- parseClassFile $ toString $ cm `B.append` ".class"
- case M.lookup mi mmap of
+ let mi = tmap M.! w32_from
+ let mi'@(MethodInfo method cm sig) =
+ case mi of
+ (MI x) -> x
+ (VI (MethodInfo methname _ msig)) ->
+ (MethodInfo methname (vmap M.! (fromIntegral methodtable)) msig)
+ _ -> error $ "getMethodEntry: no trapInfo. abort."
+ case M.lookup mi' mmap of
Nothing -> do
- printf "getMethodEntry(from 0x%08x): no method \"%s\" found. compile it\n" w32_from (show mi)
- let mm = lookupMethod method cls
+ cls <- getClassFile cm
+#ifdef DEBUG
+ printf "getMethodEntry(from 0x%08x): no method \"%s\" found. compile it\n" w32_from (show mi')
+#endif
+ mm <- lookupMethodRecursive method [] cls
case mm of
- Just mm' -> do
+ Just (mm', clsnames, cls') -> do
let flags = methodAccessFlags mm'
case S.member ACC_NATIVE flags of
False -> do
- hmap <- parseMethod cls method
- printMapBB hmap
+ hmap <- parseMethod cls' method
case hmap of
Just hmap' -> do
- entry <- compileBB hmap' mi
- return $ fromIntegral $ ((fromIntegral $ ptrToIntPtr entry) :: Word32)
+ entry <- compileBB hmap' (MethodInfo method (thisClass cls') sig)
+ addMethodRef entry mi' clsnames
+ return $ fromIntegral entry
Nothing -> error $ (show method) ++ " not found. abort"
True -> do
- let symbol = (replace "/" "_" $ toString cm) ++ "__" ++ (toString method) ++ "__" ++ (replace "(" "_" (replace ")" "_" $ toString $ encode sig))
+ -- TODO(bernhard): cleaner please... *do'h*
+ let symbol = (replace "/" "_" $ toString cm) ++ "__" ++ (toString method) ++ "__" ++ (replace ";" "_" $ replace "/" "_" $ replace "(" "_" (replace ")" "_" $ toString $ encode sig))
+#ifdef DEBUG
printf "native-call: symbol: %s\n" symbol
+#endif
nf <- loadNativeFunction symbol
let w32_nf = fromIntegral nf
- let mmap' = M.insert mi w32_nf mmap
- mmap2ptr mmap' >>= set_mmap
+ let mmap' = M.insert mi' w32_nf mmap
+ methodmap2ptr mmap' >>= set_methodmap
return nf
Nothing -> error $ (show method) ++ " not found. abort"
Just w32 -> return (fromIntegral w32)
+lookupMethodRecursive :: B.ByteString -> [B.ByteString] -> Class Resolved
+ -> IO (Maybe ((Method Resolved, [B.ByteString], Class Resolved)))
+lookupMethodRecursive name clsnames cls = do
+ case res of
+ Just x -> return $ Just (x, nextclsn, cls)
+ Nothing -> if thisname == "java/lang/Object"
+ then return $ Nothing
+ else do
+ supercl <- getClassFile (superClass cls)
+ lookupMethodRecursive name nextclsn supercl
+ where
+ res = lookupMethod name cls
+ thisname = thisClass cls
+ nextclsn :: [B.ByteString]
+ nextclsn = thisname:clsnames
+
-- TODO(bernhard): UBERHAX. ghc patch?
foreign import ccall safe "lookupSymbol"
c_lookupSymbol :: CString -> IO (Ptr a)
ptr <- withCString sym c_lookupSymbol
if (ptr == nullPtr)
then error $ "dyn. loading of \"" ++ sym ++ "\" failed."
- else return $ fromIntegral $ minusPtr ptr nullPtr
+ else return $ fromIntegral $ ptrToIntPtr ptr
-- t_01 :: IO ()
-- t_01 = do
initMethodPool :: IO ()
initMethodPool = do
- mmap2ptr M.empty >>= set_mmap
- cmap2ptr M.empty >>= set_cmap
+ methodmap2ptr M.empty >>= set_methodmap
+ trapmap2ptr M.empty >>= set_trapmap
+ classmap2ptr M.empty >>= set_classmap
+ virtualmap2ptr M.empty >>= set_virtualmap
+ stringsmap2ptr M.empty >>= set_stringsmap
-compileBB :: MapBB -> MethodInfo -> IO (Ptr Word8)
+
+addMethodRef :: Word32 -> MethodInfo -> [B.ByteString] -> IO ()
+addMethodRef entry (MethodInfo mmname _ msig) clsnames = do
+ mmap <- get_methodmap >>= ptr2methodmap
+ let newmap = M.fromList $ map (\x -> ((MethodInfo mmname x msig), entry)) clsnames
+ methodmap2ptr (mmap `M.union` newmap) >>= set_methodmap
+
+
+compileBB :: MapBB -> MethodInfo -> IO Word32
compileBB hmap methodinfo = do
- mmap <- get_mmap >>= ptr2mmap
- cmap <- get_cmap >>= ptr2cmap
+ tmap <- get_trapmap >>= ptr2trapmap
- -- TODO(bernhard): replace parsing with some kind of classpool
- cls <- parseClassFile $ toString $ (cName methodinfo) `B.append` ".class"
- let ebb = emitFromBB cls hmap
- (_, Right ((entry, _, _, new_cmap), disasm)) <- runCodeGen ebb () ()
- let w32_entry = ((fromIntegral $ ptrToIntPtr entry) :: Word32)
+ cls <- getClassFile (methClassName methodinfo)
+ let ebb = emitFromBB (methName methodinfo) cls hmap
+ (_, Right right) <- runCodeGen ebb () ()
- let mmap' = M.insert methodinfo w32_entry mmap
- let cmap' = M.union cmap new_cmap -- prefers elements in cmap
- mmap2ptr mmap' >>= set_mmap
- cmap2ptr cmap' >>= set_cmap
+ let ((entry, _, _, new_tmap), _) = right
+ let tmap' = M.union tmap new_tmap -- prefers elements in cmap
+ trapmap2ptr tmap' >>= set_trapmap
+#ifdef DEBUG
printf "disasm:\n"
- mapM_ (putStrLn . showAtt) disasm
+ mapM_ (putStrLn . showAtt) (snd right)
+#endif
-- UNCOMMENT NEXT LINE FOR GDB FUN
-- _ <- getLine
-- (1) start it with `gdb ./mate' and then `run <classfile>'
-- (2) on getLine, press ctrl+c
-- (3) `br *0x<addr>'; obtain the address from the disasm above
-- (4) `cont' and press enter
- return entry
-
-
-executeFuncPtr :: Ptr Word8 -> IO ()
-executeFuncPtr entry = code_void $ ((castPtrToFunPtr entry) :: FunPtr (IO ()))
-
--- TODO(bernhard): make some typeclass magic 'n stuff
-mmap2ptr :: MMap -> IO (Ptr ())
-mmap2ptr mmap = do
- ptr_mmap <- newStablePtr mmap
- return $ castStablePtrToPtr ptr_mmap
-
-ptr2mmap :: Ptr () -> IO MMap
-ptr2mmap vmap = deRefStablePtr $ ((castPtrToStablePtr vmap) :: StablePtr MMap)
+ return $ fromIntegral $ ptrToIntPtr entry
-cmap2ptr :: CMap -> IO (Ptr ())
-cmap2ptr cmap = do
- ptr_cmap <- newStablePtr cmap
- return $ castStablePtrToPtr ptr_cmap
-ptr2cmap :: Ptr () -> IO CMap
-ptr2cmap vmap = deRefStablePtr $ ((castPtrToStablePtr vmap) :: StablePtr cmap)
+executeFuncPtr :: Word32 -> IO ()
+executeFuncPtr entry =
+ code_void $ ((castPtrToFunPtr $ intPtrToPtr $ fromIntegral entry) :: FunPtr (IO ()))
projects / mate.git / blobdiff