X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=Mate%2FMethodPool.hs;h=7f0779c2627e1b905c0bf159b626a553f6e2424a;hb=f82dbecc763818452667ac568da96b7c5dd7cc97;hp=0d089ca2d97cc7ec556f988600676583c8048936;hpb=2cb914fa072ac52bd375324a7ef9b8fc073cb944;p=mate.git diff --git a/Mate/MethodPool.hs b/Mate/MethodPool.hs index 0d089ca..7f0779c 100644 --- a/Mate/MethodPool.hs +++ b/Mate/MethodPool.hs @@ -1,58 +1,119 @@ +{-# LANGUAGE CPP #-} {-# LANGUAGE OverloadedStrings #-} {-# LANGUAGE ForeignFunctionInterface #-} +#include "debug.h" module Mate.MethodPool where import Data.Binary +import Data.String.Utils import qualified Data.Map as M +import qualified Data.Set as S import qualified Data.ByteString.Lazy as B - -import Text.Printf +import System.Plugins import Foreign.Ptr import Foreign.C.Types -import Foreign.StablePtr +import Foreign.C.String import JVM.ClassFile import Harpy import Harpy.X86Disassembler +#ifdef DEBUG +import Text.Printf +#endif + import Mate.BasicBlocks +import Mate.Types import Mate.X86CodeGen +import Mate.ClassPool +import Mate.Debug +import Mate.Utilities +foreign import ccall "dynamic" + code_void :: FunPtr (IO ()) -> IO () -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 export ccall getMethodEntry :: CUInt -> Ptr () -> Ptr () -> IO CUInt -getMethodEntry :: CUInt -> Ptr () -> Ptr () -> IO CUInt -getMethodEntry signal_from ptr_mmap ptr_cmap = do - mmap <- ptr2mmap ptr_mmap - cmap <- ptr2cmap ptr_cmap +getMethodEntry :: CUInt -> CUInt -> IO CUInt +getMethodEntry signal_from methodtable = do + mmap <- getMethodMap + tmap <- getTrapMap + vmap <- getVirtualMap let w32_from = fromIntegral signal_from - let (method, cls, cpidx) = cmap M.! w32_from - case M.lookup method mmap of + let mi = tmap M.! w32_from + let mi'@(MethodInfo method cm sig) = + case mi of + (StaticMethod x) -> x + (VirtualMethod _ (MethodInfo methname _ msig)) -> newMi methname msig + (InterfaceMethod _ (MethodInfo methname _ msig)) -> newMi methname msig + _ -> error "getMethodEntry: no TrapCause found. abort." + where newMi mn = MethodInfo mn (vmap M.! fromIntegral methodtable) + -- bernhard (TODO): doesn't work with gnu classpath at some point. didn't + -- figured out the problem yet :/ therefore, I have no + -- testcase for replaying the situation. + -- setTrapMap $ M.delete w32_from tmap + entryaddr <- case M.lookup mi' mmap of Nothing -> do - printf "getMethodEntry(from 0x%08x): no method found. compile it\n" w32_from - -- TODO(bernhard): maybe we have to load the class first? - -- (Or better in X86CodeGen?) - let (CMethod _ nt) = (constsPool cls) M.! cpidx - hmap <- parseMethod cls (ntName nt) - case hmap of - Just hmap' -> do - entry <- compileBB hmap' cls method - return $ fromIntegral $ ((fromIntegral $ ptrToIntPtr entry) :: Word32) - Nothing -> error $ (show method) ++ " not found. abort" - Just w32 -> return (fromIntegral w32) + cls <- getClassFile cm + printfMp "getMethodEntry(from 0x%08x): no method \"%s\" found. compile it\n" w32_from (show mi') + mm <- lookupMethodRecursive method sig [] cls + case mm of + Just (mm', clsnames, cls') -> do + let flags = methodAccessFlags mm' + if S.member ACC_NATIVE flags + then do + -- TODO(bernhard): cleaner please... *do'h* + let sym1 = replace "/" "_" $ toString cm + parenth = replace "(" "_" $ replace ")" "_" $ toString $ encode sig + sym2 = replace ";" "_" $ replace "/" "_" parenth + symbol = sym1 ++ "__" ++ toString method ++ "__" ++ sym2 + printfMp "native-call: symbol: %s\n" symbol + nf <- loadNativeFunction symbol + setMethodMap $ M.insert mi' nf mmap + return nf + else do + hmap <- parseMethod cls' method sig + 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" + Nothing -> error $ show method ++ " not found. abort" + Just w32 -> return w32 + return $ fromIntegral entryaddr + +lookupMethodRecursive :: B.ByteString -> MethodSignature -> [B.ByteString] -> Class Direct + -> IO (Maybe (Method Direct, [B.ByteString], Class Direct)) +lookupMethodRecursive name sig clsnames cls = + 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 sig nextclsn supercl + where + res = lookupMethodSig name sig 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 Word32 +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 @@ -63,49 +124,39 @@ getMethodEntry signal_from ptr_mmap ptr_cmap = do -- mmap2ptr mmap >>= set_mmap -- demo_mmap -- access Data.Map from C -initMethodPool :: IO () -initMethodPool = do - mmap2ptr M.empty >>= set_mmap - cmap2ptr M.empty >>= set_cmap - -compileBB :: MapBB -> Class Resolved -> B.ByteString -> IO (Ptr Word8) -compileBB hmap cls name = do - mmap <- get_mmap >>= ptr2mmap - cmap <- get_cmap >>= ptr2cmap - - let ebb = emitFromBB cls hmap - (_, Right ((entry, _, _, new_cmap), disasm)) <- runCodeGen ebb () () - let w32_entry = ((fromIntegral $ ptrToIntPtr entry) :: Word32) - - let mmap' = M.insert name w32_entry mmap - let cmap' = M.union cmap new_cmap -- prefers elements in cmap - mmap2ptr mmap' >>= set_mmap - cmap2ptr cmap' >>= set_cmap - - printf "disasm:\n" - mapM_ (putStrLn . showAtt) disasm - return entry - - -foreign import ccall "dynamic" - code_void :: FunPtr (IO ()) -> (IO ()) - -executeFuncPtr :: Ptr Word8 -> IO () -executeFuncPtr entry = code_void $ ((castPtrToFunPtr entry) :: FunPtr (IO ())) - --- TODO(bernhard): make some typeclass magic 'n stuff -mmap2ptr :: MMap -> IO (Ptr ()) -mmap2ptr mmap = do - ptr_mmap <- newStablePtr mmap - return $ castStablePtrToPtr ptr_mmap - -ptr2mmap :: Ptr () -> IO MMap -ptr2mmap vmap = deRefStablePtr $ ((castPtrToStablePtr vmap) :: StablePtr MMap) - -cmap2ptr :: CMap -> IO (Ptr ()) -cmap2ptr cmap = do - ptr_cmap <- newStablePtr cmap - return $ castStablePtrToPtr ptr_cmap - -ptr2cmap :: Ptr () -> IO CMap -ptr2cmap vmap = deRefStablePtr $ ((castPtrToStablePtr vmap) :: StablePtr cmap) +addMethodRef :: Word32 -> MethodInfo -> [B.ByteString] -> IO () +addMethodRef entry (MethodInfo mmname _ msig) clsnames = do + mmap <- getMethodMap + let newmap = foldr (\i -> M.insert (MethodInfo mmname i msig) entry) M.empty clsnames + setMethodMap $ mmap `M.union` newmap + + +compileBB :: MapBB -> MethodInfo -> IO Word32 +compileBB hmap methodinfo = do + tmap <- getTrapMap + + cls <- getClassFile (methClassName methodinfo) + let ebb = emitFromBB (methName methodinfo) (methSignature methodinfo) cls hmap + (_, Right right) <- runCodeGen ebb () () + + let ((entry, _, _, new_tmap), _) = right + setTrapMap $ tmap `M.union` new_tmap -- prefers elements in tmap + + printfJit "generated code of \"%s\" from \"%s\":\n" (toString $ methName methodinfo) (toString $ methClassName methodinfo) + mapM_ (printfJit "%s\n" . showAtt) (snd right) + printfJit "\n\n" + -- UNCOMMENT NEXT LINES FOR GDB FUN + -- if (toString $ methName methodinfo) == "thejavamethodIwant2debug" + -- then putStrLn "press CTRL+C now for setting a breakpoint. then `c' and ENTER for continue" >> getLine + -- else return "foo" + -- (1) build a debug build (see HACKING) and execute `make tests/Fib.gdb' + -- for example, where the suffix is important + -- (2) on getLine, press CTRL+C + -- (3) `br *0x'; 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 ()))