module Mate.MethodPool where
import Data.Binary
-import Data.String
+import Data.String.Utils
import qualified Data.Map as M
+import qualified Data.Set as S
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.Converter
+import JVM.ClassFile
import Harpy
import Harpy.X86Disassembler
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 ()
-
-
--- B.ByteString = name of method
--- Word32 = entrypoint of method
-type MMap = M.Map B.ByteString Word32
+foreign import ccall "dynamic"
+ code_void :: FunPtr (IO ()) -> (IO ())
--- TODO(bernhard): not in use yet
--- Word32 = point of method call
--- B.ByteString = name of called method
-type CMap = M.Map Word32 B.ByteString
-foreign export ccall getMethodEntry :: Ptr () -> CString -> IO CUInt
-getMethodEntry :: Ptr () -> CString -> IO CUInt
-getMethodEntry ptr_mmap cstr = do
+foreign export ccall getMethodEntry :: CUInt -> Ptr () -> Ptr () -> IO CUInt
+getMethodEntry :: CUInt -> Ptr () -> Ptr () -> IO CUInt
+getMethodEntry signal_from ptr_mmap ptr_tmap = do
mmap <- ptr2mmap ptr_mmap
- str' <- peekCString cstr
- let method = fromString str'
- case M.lookup method mmap of
- Nothing -> do
- printf "getMethodEntry: no method found. compile it\n"
- -- TODO(bernhard): hardcoded... fixme!
- cls <- parseClassFile "tests/Fib.class"
- hmap <- parseMethod cls method
- case hmap of
- Just hmap' -> do
- entry <- compileBB hmap' method
- let w32_entry = ((fromIntegral $ ptrToIntPtr entry) :: Word32)
- let mmap' = M.insert method w32_entry mmap
- mmap2ptr mmap' >>= set_mmap
- return $ fromIntegral w32_entry
- Nothing -> error $ (show method) ++ " not found. abort"
- Just w32 -> return (fromIntegral w32)
+ tmap <- ptr2tmap ptr_tmap
+
+ let w32_from = fromIntegral signal_from
+ let mi = tmap M.! w32_from
+ case mi of
+ (MI mi'@(MethodInfo method cm sig)) -> do
+ case M.lookup mi' mmap of
+ Nothing -> do
+ cls <- getClassFile cm
+ printf "getMethodEntry(from 0x%08x): no method \"%s\" found. compile it\n" w32_from (show mi')
+ mm <- lookupMethodRecursive method [] cls
+ case mm of
+ Just (mm', clsnames, cls') -> do
+ let flags = methodAccessFlags mm'
+ case S.member ACC_NATIVE flags of
+ False -> do
+ hmap <- parseMethod cls' method
+ printMapBB hmap
+ case hmap of
+ Just hmap' -> do
+ 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))
+ printf "native-call: symbol: %s\n" symbol
+ nf <- loadNativeFunction symbol
+ let w32_nf = fromIntegral nf
+ let mmap' = M.insert mi' w32_nf mmap
+ mmap2ptr mmap' >>= set_methodmap
+ return nf
+ Nothing -> error $ (show method) ++ " not found. abort"
+ Just w32 -> return (fromIntegral w32)
+ _ -> error $ "getMethodEntry: no trapInfo. abort"
+
+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)
+
+loadNativeFunction :: String -> IO (CUInt)
+loadNativeFunction sym = do
+ _ <- loadRawObject "ffi/native.o"
+ -- TODO(bernhard): WTF
+ resolveObjs (return ())
+ ptr <- withCString sym c_lookupSymbol
+ if (ptr == nullPtr)
+ then error $ "dyn. loading of \"" ++ sym ++ "\" failed."
+ else return $ fromIntegral $ ptrToIntPtr ptr
-- t_01 :: IO ()
-- t_01 = do
-- demo_mmap -- access Data.Map from C
initMethodPool :: IO ()
-initMethodPool = mmap2ptr M.empty >>= set_mmap
-
-compileBB :: MapBB -> B.ByteString -> IO (Ptr Word8)
-compileBB hmap name = do
- mmap <- get_mmap >>= ptr2mmap
- let ebb = emitFromBB hmap
- (_, Right ((entry, bbstarts, end), disasm)) <- runCodeGen ebb () ()
- let w32_entry = ((fromIntegral $ ptrToIntPtr entry) :: Word32)
- let mmap' = M.insert name w32_entry mmap
- mmap2ptr mmap' >>= set_mmap
- printf "disasm:\n"
- mapM_ (putStrLn . showAtt) disasm
- return entry
+initMethodPool = do
+ mmap2ptr M.empty >>= set_methodmap
+ tmap2ptr M.empty >>= set_trapmap
+ classmap2ptr M.empty >>= set_classmap
+
+
+addMethodRef :: Word32 -> MethodInfo -> [B.ByteString] -> IO ()
+addMethodRef entry mi@(MethodInfo mname _ msig) clsnames = do
+ mmap <- get_methodmap >>= ptr2mmap
+ let newmap = M.fromList $ map (\x -> ((MethodInfo mname x msig), entry)) clsnames
+ let mmap' = newmap `M.union` newmap
+ mmap2ptr mmap' >>= set_methodmap
-foreign import ccall "dynamic"
- code_void :: FunPtr (IO ()) -> (IO ())
-executeFuncPtr :: Ptr Word8 -> IO ()
-executeFuncPtr entry = code_void $ ((castPtrToFunPtr entry) :: FunPtr (IO ()))
+compileBB :: MapBB -> MethodInfo -> IO Word32
+compileBB hmap methodinfo = do
+ tmap <- get_trapmap >>= ptr2tmap
-mmap2ptr :: MMap -> IO (Ptr ())
-mmap2ptr mmap = do
- ptr_mmap <- newStablePtr mmap
- return $ castStablePtrToPtr ptr_mmap
+ cls <- getClassFile (cName methodinfo)
+ let ebb = emitFromBB (methName methodinfo) cls hmap
+ (_, Right ((entry, _, _, new_tmap), disasm)) <- runCodeGen ebb () ()
-ptr2mmap :: Ptr () -> IO MMap
-ptr2mmap vmap = deRefStablePtr $ ((castPtrToStablePtr vmap) :: StablePtr MMap)
+ let tmap' = M.union tmap new_tmap -- prefers elements in cmap
+ tmap2ptr tmap' >>= set_trapmap
+
+ printf "disasm:\n"
+ mapM_ (putStrLn . showAtt) disasm
+ -- 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 $ fromIntegral $ ptrToIntPtr entry
+
+
+executeFuncPtr :: Word32 -> IO ()
+executeFuncPtr entry =
+ code_void $ ((castPtrToFunPtr $ intPtrToPtr $ fromIntegral entry) :: FunPtr (IO ()))
projects / mate.git / blobdiff