X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=Mate%2FTypes.hs;h=de17e3780aa4cf8c695e72ce4a6891fb505a64e8;hb=2ac2a68eb5b709caa636d1a9a56a40268d378550;hp=831744ab27e1c0d96e162cd16fe6de4707b86dc2;hpb=094e3cea9aa9d638b071fb52a12f04f6ddd80dc1;p=mate.git

diff --git a/Mate/Types.hs b/Mate/Types.hs
index 831744a..de17e37 100644
--- a/Mate/Types.hs
+++ b/Mate/Types.hs
@@ -1,27 +1,57 @@
 {-# LANGUAGE OverloadedStrings #-}
-{-# LANGUAGE CPP #-}
-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.Word
 import Data.Int
+import Data.Functor
 import qualified Data.Map as M
 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
 
+import Mate.NativeSizes
+
 
 type BlockID = Int
 -- Represents a CFG node
 data BasicBlock = BasicBlock {
   code :: [Instruction],
+  exception :: B.ByteString,
   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
 
@@ -29,20 +59,26 @@ data RawMethod = RawMethod {
   rawMapBB :: MapBB,
   rawLocals :: Int,
   rawStackSize :: Int,
-  rawArgCount :: Word32 }
+  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 TrapCause
+type TrapMap = M.Map NativeWord TrapCause
+
+type TrapPatcher = CPtrdiff -> CodeGen () () CPtrdiff
+type TrapPatcherEax = CPtrdiff -> CPtrdiff -> CodeGen () () CPtrdiff
+type TrapPatcherEsp = TrapPatcherEax
 
-data TrapCause =
-  StaticMethod MethodInfo | -- for static calls
-  VirtualMethod Bool MethodInfo | -- for virtual calls
-  InterfaceMethod Bool MethodInfo | -- for interface calls
-  InstanceOf B.ByteString | -- class name
-  NewObject B.ByteString | -- class name
-  StaticField StaticFieldInfo deriving Show
+data TrapCause
+  = StaticMethod TrapPatcher -- for static calls
+  | VirtualCall Bool MethodInfo (IO NativeWord) -- for invoke{interface,virtual}
+  | InstanceOf TrapPatcherEax
+  | ThrowException TrapPatcherEsp
+  | NewObject TrapPatcher
+  | StaticField StaticFieldInfo
+  | ObjectField TrapPatcher
 
 data StaticFieldInfo = StaticFieldInfo {
   sfiClassName :: B.ByteString,
@@ -51,8 +87,8 @@ data StaticFieldInfo = StaticFieldInfo {
 
 
 -- 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,
@@ -75,7 +111,7 @@ data ClassInfo = ClassInfo {
   ciStaticMap  :: FieldMap,
   ciFieldMap :: FieldMap,
   ciMethodMap :: FieldMap,
-  ciMethodBase :: Word32,
+  ciMethodBase :: NativeWord,
   ciInitDone :: Bool }
 
 
@@ -85,20 +121,20 @@ type FieldMap = M.Map B.ByteString Int32
 
 -- 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 Direct)
 
 -- store offset for each <Interface><Method><Signature> pair
-type InterfaceMethodMap = M.Map B.ByteString Word32
+type InterfaceMethodMap = M.Map B.ByteString NativeWord
 
 
 {-
@@ -106,7 +142,6 @@ toString :: B.ByteString -> String
 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,
@@ -124,32 +159,47 @@ mateCtx :: IORef MateCtx
 {-# 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