+{-# 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 JVM.Converter
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 ()
-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 mi@(MethodInfo method cm _ cpidx) = cmap M.! w32_from
- -- TODO(bernhard): replace parsing with some kind of classpool
- cls <- parseClassFile $ toString $ cm `B.append` ".class"
- case M.lookup mi 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 \"%s\" found. compile it\n" w32_from (show mi)
- -- 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)
- 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"
- 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
-- 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
+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 (Ptr Word8)
+compileBB :: MapBB -> MethodInfo -> IO Word32
compileBB hmap methodinfo = do
- mmap <- get_mmap >>= ptr2mmap
- cmap <- get_cmap >>= ptr2cmap
-
- -- TODO(bernhard): replace parsing with some kind of classpool
- cls <- parseClassFile $ toString $ (cName methodinfo) `B.append` ".class"
- let ebb = emitFromBB cls hmap
- (_, Right ((entry, _, _, new_cmap), disasm)) <- runCodeGen ebb () ()
- let w32_entry = ((fromIntegral $ ptrToIntPtr entry) :: Word32)
-
- let mmap' = M.insert methodinfo 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
- -- UNCOMMENT NEXT LINE FOR GDB FUN
- -- _ <- getLine
- -- (1) start it with `gdb ./mate' and then `run <classfile>'
- -- (2) on getLine, press ctrl+c
+ 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<addr>'; obtain the address from the disasm above
-- (4) `cont' and press enter
- 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)
+ return $ fromIntegral $ ptrToIntPtr entry
-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)
+executeFuncPtr :: Word32 -> IO ()
+executeFuncPtr entry =
+ code_void ((castPtrToFunPtr $ intPtrToPtr $ fromIntegral entry) :: FunPtr (IO ()))
projects / mate.git / blobdiff