+{-# 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 Text.Printf
+import qualified Data.Set as S
+import qualified Data.ByteString.Lazy as B
+import System.Plugins
import Foreign.Ptr
import Foreign.C.Types
import Foreign.C.String
-import Foreign.StablePtr
+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 ()
+
+
+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
+ 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
+ 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
+-- (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
+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
-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 <- getTrapMap
-foreign import ccall "demo_mmap"
- demo_mmap :: IO ()
+ 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
-type MMap = M.Map String Word32
+ 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 $ 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 :: 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 :: Word32 -> IO ()
+executeFuncPtr entry =
+ code_void ((castPtrToFunPtr $ intPtrToPtr $ fromIntegral entry) :: FunPtr (IO ()))
projects / mate.git / blobdiff