module Mate.MethodPool where
import Data.Binary
+import Data.String.Utils
import qualified Data.Map as M
-
+import qualified Data.Set as S
+import System.Plugins
import Text.Printf
import Foreign.Ptr
import Foreign.C.Types
import Foreign.C.String
-import Foreign.StablePtr
+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')
+ let mm = lookupMethod method cls
+ case mm of
+ Just mm' -> 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' mi'
+ return $ fromIntegral $ ((fromIntegral $ ptrToIntPtr entry) :: Word32)
+ 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"
+
+-- 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
-foreign import ccall "get_mmap"
- get_mmap :: IO (Ptr ())
+initMethodPool :: IO ()
+initMethodPool = do
+ mmap2ptr M.empty >>= set_methodmap
+ tmap2ptr M.empty >>= set_trapmap
+ classmap2ptr M.empty >>= set_classmap
-foreign import ccall "set_mmap"
- set_mmap :: Ptr () -> IO ()
+compileBB :: MapBB -> MethodInfo -> IO (Ptr Word8)
+compileBB hmap methodinfo = do
+ mmap <- get_methodmap >>= ptr2mmap
+ tmap <- get_trapmap >>= ptr2tmap
-foreign import ccall "demo_mmap"
- demo_mmap :: IO ()
+ -- TODO(bernhard): replace parsing with some kind of classpool
+ cls <- getClassFile (cName methodinfo)
+ let ebb = emitFromBB cls hmap
+ (_, Right ((entry, _, _, new_tmap), disasm)) <- runCodeGen ebb () ()
+ let w32_entry = ((fromIntegral $ ptrToIntPtr entry) :: Word32)
+ let mmap' = M.insert methodinfo w32_entry mmap
+ let tmap' = M.union tmap new_tmap -- prefers elements in cmap
+ mmap2ptr mmap' >>= set_methodmap
+ 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 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 :: 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
- ptr_mmap <- newStablePtr mmap
- set_mmap $ castStablePtrToPtr ptr_mmap
- demo_mmap -- access Data.Map from C
+executeFuncPtr :: Ptr Word8 -> IO ()
+executeFuncPtr entry = code_void $ ((castPtrToFunPtr entry) :: FunPtr (IO ()))
projects / mate.git / blobdiff