{-# LANGUAGE OverloadedStrings #-}
-{-# LANGUAGE CPP #-}
-module Mate.Types where
+module Mate.Types
+ ( BlockID
+ , BasicBlock(..)
+ , BBEnd(..)
+ , MapBB
+ , ExceptionMap
+ , JpcNpcMap
+ , RawMethod(..)
+ , TrapPatcher, TrapPatcherEax, TrapPatcherEaxEsp
+ , 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.Int
+import Data.Functor
+import Data.Word
import qualified Data.Map as M
+import qualified Data.Bimap as BI
import qualified Data.ByteString.Lazy as B
import Data.IORef
import System.IO.Unsafe
+import Harpy
+import Foreign.C.Types
+
import JVM.ClassFile
import JVM.Assembler
type BlockID = Int
-- Represents a CFG node
data BasicBlock = BasicBlock {
- code :: [Instruction],
+ code :: [(Int, Instruction)],
+ bblength :: Int,
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
+type ExceptionMap = M.Map (Word16, Word16) [(B.ByteString, Word16)]
+
+-- java byte code PC -> native PC
+type JpcNpcMap = BI.Bimap Int Word32
data RawMethod = RawMethod {
rawMapBB :: MapBB,
+ rawExcpMap :: ExceptionMap,
rawLocals :: Int,
rawStackSize :: Int,
rawArgCount :: NativeWord,
-- MethodInfo = relevant information about callee
type TrapMap = M.Map NativeWord TrapCause
-data TrapCause =
- StaticMethod MethodInfo | -- for static calls
- VirtualCall Bool MethodInfo (IO NativeWord) | -- for invoke{interface,virtual}
- InstanceOf B.ByteString | -- class name
- NewObject B.ByteString | -- class name
- StaticField StaticFieldInfo
+type TrapPatcher = CPtrdiff -> CodeGen () () CPtrdiff
+type TrapPatcherEax = CPtrdiff -> TrapPatcher
+type TrapPatcherEaxEsp = CPtrdiff -> TrapPatcherEax
+
+data TrapCause
+ = StaticMethod TrapPatcher -- for static calls
+ | VirtualCall Bool MethodInfo (IO NativeWord) -- for invoke{interface,virtual}
+ | InstanceOf TrapPatcherEax
+ | ThrowException TrapPatcherEaxEsp
+ | NewObject TrapPatcher
+ | StaticField StaticFieldInfo
+ | ObjectField TrapPatcher
data StaticFieldInfo = StaticFieldInfo {
sfiClassName :: B.ByteString,
-- B.ByteString = name of method
-- NativeWord = entrypoint of method
-type MethodMap = M.Map MethodInfo NativeWord
+type MethodMap = M.Map MethodInfo (NativeWord, JpcNpcMap)
data MethodInfo = MethodInfo {
methName :: B.ByteString,
toString bstr = decodeString $ map (chr . fromIntegral) $ B.unpack bstr
-}
--- better solutions for a global map hack are welcome! (typeclasses, TH, ...?)
data MateCtx = MateCtx {
ctxMethodMap :: MethodMap,
{-# NOINLINE mateCtx #-}
mateCtx = unsafePerformIO $ newIORef emptyMateCtx
--- TODO(bernhard): if we ever have thread support, don't forget MVars
-#define SETMAP(name) set##name :: name -> IO (); \
- set##name m = do ctx <- readIORef mateCtx; \
- writeIORef mateCtx $ ctx { ctx##name = m };
+setMap :: (MateCtx -> MateCtx) -> IO ()
+setMap recordupdate = recordupdate <$> readIORef mateCtx >>= writeIORef mateCtx
+
+setMethodMap :: MethodMap -> IO ()
+setMethodMap m = setMap (\x -> x {ctxMethodMap = m})
+
+getMethodMap :: IO MethodMap
+getMethodMap = ctxMethodMap <$> readIORef mateCtx
+
+setTrapMap :: TrapMap -> IO ()
+setTrapMap m = setMap (\x -> x {ctxTrapMap = m})
+
+getTrapMap :: IO TrapMap
+getTrapMap = ctxTrapMap <$> readIORef mateCtx
+
+setClassMap :: ClassMap -> IO ()
+setClassMap m = setMap (\x -> x {ctxClassMap = m})
+
+getClassMap :: IO ClassMap
+getClassMap = ctxClassMap <$> readIORef mateCtx
-#define GETMAP(name) get##name :: IO name ; \
- get##name = do ctx <- readIORef mateCtx; \
- return $ ctx##name ctx;
+setVirtualMap :: VirtualMap -> IO ()
+setVirtualMap m = setMap (\x -> x {ctxVirtualMap = m})
-SETMAP(MethodMap);
-GETMAP(MethodMap)
+getVirtualMap :: IO VirtualMap
+getVirtualMap = ctxVirtualMap <$> readIORef mateCtx
-SETMAP(TrapMap)
-GETMAP(TrapMap)
+setStringMap :: StringMap -> IO ()
+setStringMap m = setMap (\x -> x {ctxStringMap = m})
-SETMAP(ClassMap)
-GETMAP(ClassMap)
+getStringMap :: IO StringMap
+getStringMap = ctxStringMap <$> readIORef mateCtx
-SETMAP(VirtualMap)
-GETMAP(VirtualMap)
+setInterfaceMap :: InterfaceMap -> IO ()
+setInterfaceMap m = setMap (\x -> x {ctxInterfaceMap = m})
-SETMAP(StringMap)
-GETMAP(StringMap)
+getInterfaceMap :: IO InterfaceMap
+getInterfaceMap = ctxInterfaceMap <$> readIORef mateCtx
-SETMAP(InterfaceMap)
-GETMAP(InterfaceMap)
+setInterfaceMethodMap :: InterfaceMethodMap -> IO ()
+setInterfaceMethodMap m = setMap (\x -> x {ctxInterfaceMethodMap = m})
-SETMAP(InterfaceMethodMap)
-GETMAP(InterfaceMethodMap)
+getInterfaceMethodMap :: IO InterfaceMethodMap
+getInterfaceMethodMap = ctxInterfaceMethodMap <$> readIORef mateCtx