module Mate.MethodPool where
import Data.Binary
-import Data.Int
-import Data.List
-import Data.Maybe
+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
import Foreign.Ptr
-import Foreign.StablePtr
import Foreign.C.Types
import Foreign.C.String
-import Text.Printf
-
-import qualified JVM.Assembler as J
-import JVM.Assembler hiding (Instruction)
+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 "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_tmap = do
+ mmap <- ptr2mmap ptr_mmap
+ 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
+-- (entry, _) <- testCase "./tests/Fib.class" "fib"
+-- let int_entry = ((fromIntegral $ ptrToIntPtr entry) :: Word32)
+-- let mmap = M.insert ("fib" :: String) int_entry M.empty
+-- mapM_ (\(x,y) -> printf "%s at 0x%08x\n" x y) $ M.toList mmap
+-- mmap2ptr mmap >>= set_mmap
+-- demo_mmap -- access Data.Map from C
+
+initMethodPool :: IO ()
+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 "get_mmap"
- get_mmap :: IO (Ptr ())
-foreign import ccall "set_mmap"
- set_mmap :: Ptr () -> IO ()
+compileBB :: MapBB -> MethodInfo -> IO Word32
+compileBB hmap methodinfo = do
+ tmap <- get_trapmap >>= ptr2tmap
-foreign import ccall "demo_mmap"
- demo_mmap :: IO ()
+ cls <- getClassFile (cName methodinfo)
+ let ebb = emitFromBB (methName methodinfo) cls hmap
+ (_, Right ((entry, _, _, new_tmap), disasm)) <- runCodeGen ebb () ()
+ let tmap' = M.union tmap new_tmap -- prefers elements in cmap
+ tmap2ptr tmap' >>= set_trapmap
-type MMap = M.Map String Word32
+ 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
-foreign export ccall getMethodEntry :: Ptr () -> CString -> IO CUInt
-getMethodEntry :: Ptr () -> CString -> IO CUInt
-getMethodEntry ptr_mmap cstr = do
- mmap <- deRefStablePtr $ ((castPtrToStablePtr ptr_mmap) :: StablePtr MMap)
- k <- peekCString cstr
- case M.lookup k mmap of
- Nothing -> return 0
- Just w32 -> return (fromIntegral w32)
-t_01 = do
- (entry, end) <- testCase "./tests/Fib.class" "fib"
- let int_entry = ((fromIntegral $ ptrToIntPtr entry) :: Word32)
- let mmap = M.insert ("fib" :: String) int_entry M.empty
- mapM_ (\(x,y) -> printf "%s at 0x%08x\n" x y) $ M.toList mmap
- ptr_mmap <- newStablePtr mmap
- set_mmap $ castStablePtrToPtr ptr_mmap
- demo_mmap -- access Data.Map from C
+executeFuncPtr :: Word32 -> IO ()
+executeFuncPtr entry =
+ code_void $ ((castPtrToFunPtr $ intPtrToPtr $ fromIntegral entry) :: FunPtr (IO ()))
projects / mate.git / blobdiff