+{-# 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 System.Plugins
-import Text.Printf
-
import Foreign.Ptr
import Foreign.C.Types
import Foreign.C.String
import Harpy
import Harpy.X86Disassembler
+#ifdef DEBUG
+import Text.Printf
+#endif
+
import Mate.BasicBlocks
import Mate.Types
import Mate.X86CodeGen
-import Mate.Utilities
import Mate.ClassPool
-
+import Mate.Debug
+import Mate.Utilities
foreign import ccall "dynamic"
- code_void :: FunPtr (IO ()) -> (IO ())
+ 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
+getMethodEntry :: CUInt -> CUInt -> IO CUInt
+getMethodEntry signal_from methodtable = do
+ mmap <- getMethodMap
+ tmap <- getTrapMap
+ vmap <- getVirtualMap
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"
+ 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
+ case M.lookup mi' mmap of
+ Nothing -> do
+ 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
+ let w32_nf = fromIntegral nf
+ setMethodMap $ M.insert mi' w32_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 (fromIntegral w32)
+
+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 (CUInt)
+loadNativeFunction :: String -> IO CUInt
loadNativeFunction sym = do
_ <- loadRawObject "ffi/native.o"
-- TODO(bernhard): WTF
resolveObjs (return ())
ptr <- withCString sym c_lookupSymbol
- if (ptr == nullPtr)
+ if ptr == nullPtr
then error $ "dyn. loading of \"" ++ sym ++ "\" failed."
else return $ fromIntegral $ ptrToIntPtr ptr
-- 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 (MethodInfo mmname _ msig) clsnames = do
+ mmap <- getMethodMap
+ let newmap = M.fromList $ map (\x -> (MethodInfo mmname x msig, entry)) clsnames
+ setMethodMap $ mmap `M.union` newmap
+
-compileBB :: MapBB -> MethodInfo -> IO (Ptr Word8)
+compileBB :: MapBB -> MethodInfo -> IO Word32
compileBB hmap methodinfo = do
- mmap <- get_methodmap >>= ptr2mmap
- tmap <- get_trapmap >>= ptr2tmap
-
- -- TODO(bernhard): replace parsing with some kind of classpool
- cls <- getClassFile (cName methodinfo)
- let ebb = emitFromBB (methName methodinfo) 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
-
- printf "disasm:\n"
- mapM_ (putStrLn . showAtt) disasm
- -- UNCOMMENT NEXT LINE FOR GDB FUN
- -- _ <- getLine
+ 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 getLine
+ -- else return "foo"
-- (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
+ return $ fromIntegral $ ptrToIntPtr entry
-executeFuncPtr :: Ptr Word8 -> IO ()
-executeFuncPtr entry = code_void $ ((castPtrToFunPtr entry) :: FunPtr (IO ()))
+executeFuncPtr :: Word32 -> IO ()
+executeFuncPtr entry =
+ code_void ((castPtrToFunPtr $ intPtrToPtr $ fromIntegral entry) :: FunPtr (IO ()))