{-# LANGUAGE OverloadedStrings #-}
-{-# LANGUAGE ForeignFunctionInterface #-}
-module Mate.Types where
+module Mate.Types
+ ( BlockID
+ , BasicBlock(..)
+ , BBEnd(..)
+ , MapBB
+ , RawMethod(..)
+ , TrapMap, MethodMap, ClassMap, FieldMap
+ , StringMap, VirtualMap, InterfaceMap
+ , InterfaceMethodMap
+ , TrapCause(..)
+ , StaticFieldInfo(..)
+ , MethodInfo(..)
+ , ClassInfo(..)
+ , setTrapMap, getTrapMap
+ , setMethodMap, getMethodMap
+ , setClassMap, getClassMap
+ , setStringMap, getStringMap
+ , setVirtualMap, getVirtualMap
+ , setInterfaceMap, getInterfaceMap
+ , setInterfaceMethodMap, getInterfaceMethodMap
+ ) where
-import Data.Char
-import Data.Word
import Data.Int
+import Data.Functor
import qualified Data.Map as M
import qualified Data.ByteString.Lazy as B
-import Codec.Binary.UTF8.String hiding (encode,decode)
-import Foreign.Ptr
-import Foreign.StablePtr
+import Data.IORef
+import System.IO.Unsafe
+
+import Harpy
+import Foreign.C.Types
import JVM.ClassFile
import JVM.Assembler
+import Mate.NativeSizes
+
type BlockID = Int
-- Represents a CFG node
successor :: BBEnd }
-- describes (leaving) edges of a CFG node
-data BBEnd = Return | FallThrough BlockID | OneTarget BlockID | TwoTarget BlockID BlockID deriving Show
+data BBEnd
+ = Return
+ | FallThrough BlockID
+ | OneTarget BlockID
+ | TwoTarget BlockID BlockID
+ deriving Show
type MapBB = M.Map BlockID BasicBlock
+data RawMethod = RawMethod {
+ rawMapBB :: MapBB,
+ rawLocals :: Int,
+ rawStackSize :: Int,
+ rawArgCount :: NativeWord,
+ rawCodeLength :: NativeWord }
--- Word32 = point of method call in generated code
+-- NativeWord = point of method call in generated code
-- MethodInfo = relevant information about callee
-type TrapMap = M.Map Word32 TrapInfo
+type TrapMap = M.Map NativeWord TrapCause
-data TrapInfo =
- MI MethodInfo | -- for static calls
- VI MethodInfo | -- for virtual calls
- II MethodInfo | -- for interface calls
- SFI StaticFieldInfo deriving Show
+type TrapPatcher = CPtrdiff -> CodeGen () () CPtrdiff
+type TrapPatcherEax = CPtrdiff -> CPtrdiff -> CodeGen () () CPtrdiff
+
+data TrapCause
+ = StaticMethod TrapPatcher -- for static calls
+ | VirtualCall Bool MethodInfo (IO NativeWord) -- for invoke{interface,virtual}
+ | InstanceOf TrapPatcherEax
+ | NewObject TrapPatcher
+ | StaticField StaticFieldInfo
+ | ObjectField TrapPatcher
data StaticFieldInfo = StaticFieldInfo {
sfiClassName :: B.ByteString,
-- B.ByteString = name of method
--- Word32 = entrypoint of method
-type MethodMap = M.Map MethodInfo Word32
+-- NativeWord = entrypoint of method
+type MethodMap = M.Map MethodInfo NativeWord
data MethodInfo = MethodInfo {
methName :: B.ByteString,
methSignature :: MethodSignature
} deriving (Eq, Ord)
--- TODO(bernhard): not really efficient. also, outsource that to hs-java
--- deriving should be enough?
-instance Ord MethodSignature where
- compare (MethodSignature args_a ret_a) (MethodSignature args_b ret_b)
- | cmp_args /= EQ = cmp_args
- | otherwise = show ret_a `compare` show ret_b
- where cmp_args = show args_a `compare` show args_b
-
instance Show MethodInfo where
show (MethodInfo method c sig) =
toString c ++ "." ++ toString method ++ "." ++ show sig
data ClassInfo = ClassInfo {
ciName :: B.ByteString,
- ciFile :: Class Resolved,
+ ciFile :: Class Direct,
ciStaticMap :: FieldMap,
ciFieldMap :: FieldMap,
ciMethodMap :: FieldMap,
- ciMethodBase :: Word32,
+ ciMethodBase :: NativeWord,
ciInitDone :: Bool }
-- java strings are allocated only once, therefore we
-- use a hashmap to store the address for a String
-type StringMap = M.Map B.ByteString Word32
+type StringMap = M.Map B.ByteString NativeWord
-- map "methodtable addr" to "classname"
-- we need that to identify the actual type
-- on the invokevirtual insn
-type VirtualMap = M.Map Word32 B.ByteString
+type VirtualMap = M.Map NativeWord B.ByteString
-- store each parsed Interface upon first loading
-type InterfaceMap = M.Map B.ByteString (Class Resolved)
+type InterfaceMap = M.Map B.ByteString (Class Direct)
-- store offset for each <Interface><Method><Signature> pair
-type InterfaceMethodMap = M.Map B.ByteString Word32
+type InterfaceMethodMap = M.Map B.ByteString NativeWord
+{-
toString :: B.ByteString -> String
toString bstr = decodeString $ map (chr . fromIntegral) $ B.unpack bstr
+-}
--- those functions are for the "global map hax"
--- TODO(bernhard): other solution please
-foreign import ccall "set_mate_context"
- set_mate_context :: Ptr () -> IO ()
-
-foreign import ccall "get_mate_context"
- get_mate_context :: IO (Ptr ())
-
data MateCtx = MateCtx {
ctxMethodMap :: MethodMap,
ctxTrapMap :: TrapMap,
emptyMateCtx :: MateCtx
emptyMateCtx = MateCtx M.empty M.empty M.empty M.empty M.empty M.empty M.empty
-ctx2ptr :: MateCtx -> IO (Ptr ())
-ctx2ptr ctx = do
- ptr <- newStablePtr ctx
- return $ castStablePtrToPtr ptr
-
-ptr2ctx :: Ptr () -> IO MateCtx
-ptr2ctx ptr = deRefStablePtr (castPtrToStablePtr ptr :: StablePtr MateCtx)
+mateCtx :: IORef MateCtx
+{-# NOINLINE mateCtx #-}
+mateCtx = unsafePerformIO $ newIORef emptyMateCtx
+setMap :: (MateCtx -> MateCtx) -> IO ()
+setMap recordupdate = recordupdate <$> readIORef mateCtx >>= writeIORef mateCtx
setMethodMap :: MethodMap -> IO ()
-setMethodMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxMethodMap = m } >>= set_mate_context
+setMethodMap m = setMap (\x -> x {ctxMethodMap = m})
getMethodMap :: IO MethodMap
-getMethodMap = do
- ctx <- get_mate_context >>= ptr2ctx
- return $ ctxMethodMap ctx
-
+getMethodMap = ctxMethodMap <$> readIORef mateCtx
setTrapMap :: TrapMap -> IO ()
-setTrapMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxTrapMap = m } >>= set_mate_context
+setTrapMap m = setMap (\x -> x {ctxTrapMap = m})
getTrapMap :: IO TrapMap
-getTrapMap = do
- ctx <- get_mate_context >>= ptr2ctx
- return $ ctxTrapMap ctx
-
+getTrapMap = ctxTrapMap <$> readIORef mateCtx
setClassMap :: ClassMap -> IO ()
-setClassMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxClassMap = m } >>= set_mate_context
+setClassMap m = setMap (\x -> x {ctxClassMap = m})
getClassMap :: IO ClassMap
-getClassMap = do
- ctx <- get_mate_context >>= ptr2ctx
- return $ ctxClassMap ctx
-
+getClassMap = ctxClassMap <$> readIORef mateCtx
setVirtualMap :: VirtualMap -> IO ()
-setVirtualMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxVirtualMap = m } >>= set_mate_context
+setVirtualMap m = setMap (\x -> x {ctxVirtualMap = m})
getVirtualMap :: IO VirtualMap
-getVirtualMap = do
- ctx <- get_mate_context >>= ptr2ctx
- return $ ctxVirtualMap ctx
-
+getVirtualMap = ctxVirtualMap <$> readIORef mateCtx
setStringMap :: StringMap -> IO ()
-setStringMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxStringMap = m } >>= set_mate_context
+setStringMap m = setMap (\x -> x {ctxStringMap = m})
getStringMap :: IO StringMap
-getStringMap = do
- ctx <- get_mate_context >>= ptr2ctx
- return $ ctxStringMap ctx
-
+getStringMap = ctxStringMap <$> readIORef mateCtx
setInterfaceMap :: InterfaceMap -> IO ()
-setInterfaceMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxInterfaceMap = m } >>= set_mate_context
+setInterfaceMap m = setMap (\x -> x {ctxInterfaceMap = m})
getInterfaceMap :: IO InterfaceMap
-getInterfaceMap = do
- ctx <- get_mate_context >>= ptr2ctx
- return $ ctxInterfaceMap ctx
-
+getInterfaceMap = ctxInterfaceMap <$> readIORef mateCtx
setInterfaceMethodMap :: InterfaceMethodMap -> IO ()
-setInterfaceMethodMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxInterfaceMethodMap = m } >>= set_mate_context
+setInterfaceMethodMap m = setMap (\x -> x {ctxInterfaceMethodMap = m})
getInterfaceMethodMap :: IO InterfaceMethodMap
-getInterfaceMethodMap = do
- ctx <- get_mate_context >>= ptr2ctx
- return $ ctxInterfaceMethodMap ctx
+getInterfaceMethodMap = ctxInterfaceMethodMap <$> readIORef mateCtx
projects / mate.git / blobdiff