{-# LANGUAGE OverloadedStrings #-}
-{-# LANGUAGE TemplateHaskell, FlexibleInstances #-}
-{-# LANGUAGE ForeignFunctionInterface #-}
module Main where
-import Data.Binary
-import Data.String
-import System.Environment hiding (getEnv)
-import qualified Data.Map as M
+import System.Environment
+import Data.Char
+import Data.List
+import Data.List.Split
import qualified Data.ByteString.Lazy as B
-
-import Text.Printf
-
import Control.Monad
-import qualified JVM.Assembler as J
-import JVM.Assembler hiding (Instruction)
-import JVM.Common
import JVM.ClassFile
-import JVM.Converter
-import JVM.Dump
-
-import Foreign
-import Foreign.Ptr
-import Foreign.C.Types
-
-import Harpy
-import Harpy.X86Disassembler
+import Java.JAR
+import Mate.BasicBlocks
+import Mate.MethodPool
+import Mate.Types
+import Mate.ClassPool
+import Mate.NativeMachine
+import Mate.Debug
-foreign import ccall "dynamic"
- code_void :: FunPtr (CInt -> IO CInt) -> (CInt -> IO CInt)
-
-
-$(callDecl "callAsWord32" [t|Word32|])
+import Mate.GC.Boehm
+main :: IO ()
main = do
args <- getArgs
- case args of
- [clspath] -> do
- clsFile <- decodeFile clspath
- let cp = constsPool (clsFile :: Class Pointers)
- putStrLn "==== constpool: ===="
- putStrLn $ showListIx $ M.elems cp
- cf <- parseClassFile clspath
- putStrLn "==== classfile dump: ===="
- dumpClass cf
- putStrLn "==== random stuff: ===="
- let mainmethod = lookupMethod "main" cf -- "main|([Ljava/lang/String;)V" cf
- case mainmethod of
- Nothing -> putStrLn "no main found"
- Just main ->
- case attrByName main "Code" of
- Nothing -> putStrLn "no code attr found"
- Just bytecode -> do
- putStrLn "woot, running now"
- allocaArray 26 (\ p -> mapM_ (\ i -> poke (advancePtr p i) 0) [0..25] >> runstuff p bytecode)
- _ -> error "Synopsis: dump-class File.class"
-
-runstuff :: Ptr Int32 -> B.ByteString -> IO ()
-runstuff env bytecode = do
- let emittedcode = compile $ codeInstructions $ decodeMethod bytecode
- (_, Right (entryPtr, disasm)) <- runCodeGen emittedcode env ()
- printf "entry point: 0x%08x\n" ((fromIntegral $ ptrToIntPtr entryPtr) :: Int)
-
- let entryFuncPtr = ((castPtrToFunPtr entryPtr) :: FunPtr (CInt -> IO CInt))
- result <- code_void entryFuncPtr (fromIntegral 0x1337)
- let iresult::Int; iresult = fromIntegral result
- printf "result: 0x%08x\n" iresult
-
- result2 <- code_void entryFuncPtr (fromIntegral (-0x20))
- let iresult2::Int; iresult2 = fromIntegral result2
- printf "result: 0x%08x\n" iresult2
-
- printf "disasm:\n"
- mapM_ (putStrLn . showAtt) disasm
- return ()
-
-
-entryCode :: CodeGen e s ()
-entryCode = do push ebp
- mov ebp esp
-
-exitCode :: CodeGen e s ()
-exitCode = do mov esp ebp
- pop ebp
- ret
-
-compile :: [J.Instruction] -> CodeGen (Ptr Int32) s (Ptr Word8, [Instruction])
-compile insn = do
- entryCode
- mapM compile_ins insn
- exitCode
- d <- disassemble
- c <- getEntryPoint
- return (c,d)
-
-compile_ins :: J.Instruction -> CodeGen (Ptr Int32) s ()
-compile_ins (BIPUSH w8) = do mov eax ((fromIntegral w8) :: Word32)
-compile_ins (PUTSTATIC w16) = do add eax (Disp 8, ebp) -- add first argument to %eax
-compile_ins (GETSTATIC w16) = do nop
-compile_ins ICONST_2 = do nop
-compile_ins IMUL = do nop
-compile_ins RETURN = do nop
-compile_ins _ = do nop
-
--- TODO: actually this function already exists in hs-java-0.3!
-lookupMethod :: B.ByteString -> Class Resolved -> Maybe (Method Resolved)
-lookupMethod name cls = look (classMethods cls)
- where
- look [] = Nothing
- look (f:fs)
- | methodName f == name = Just f
- | otherwise = look fs
+ register_signal
+ parseArgs args False
+
+parseArgs :: [String] -> Bool -> IO ()
+parseArgs ("-jar":jarpath:_) stdcp = do
+ unless stdcp $ addClassPath "./"
+ addClassPathJAR jarpath
+ res <- readMainClass jarpath
+ case res of
+ Nothing -> error "JAR: no MainClass entry found. Try to pass the jar file via -cp instead."
+ Just mc -> do
+ let bclspath = B.pack . map (fromIntegral . ord) $ mc
+ cls <- getClassFile bclspath
+ executeMain bclspath cls
+
+parseArgs ("-cp":cps) cpset = parseArgs ("-classpath":cps) cpset
+parseArgs ("-classpath":cps:xs) False = do
+ mapM_ addStuff $ splitOn ":" cps
+ parseArgs xs True
+ where
+ addStuff :: String -> IO ()
+ addStuff x
+ | ".jar" `isSuffixOf` x = addClassPathJAR x
+ | otherwise = addClassPath $ x ++ "/"
+parseArgs ("-classpath":xs) _ = parseArgs ("-":xs) True -- usage
+parseArgs (('-':_):_) _ = error "Usage: mate [-cp|-classpath <cp1:cp2:..>] [<class-file> | -jar <jar-file>]"
+-- first argument which isn't prefixed by '-' should be a class file
+parseArgs (clspath:_) stdcp = do
+ unless stdcp $ addClassPath "./"
+ let bclspath = B.pack . map (fromIntegral . ord) $ clspath
+ cls <- getClassFile bclspath
+ executeMain bclspath cls
+parseArgs _ _ = parseArgs ["-"] False
+
+
+executeMain :: B.ByteString -> Class Direct -> IO ()
+executeMain bclspath cls = do
+ initGC --required on some platforms. [todo bernhard: maybe this should be moved somewhere else - maybe at a global place where vm initialization takes place
+
+ let methods = classMethods cls; methods :: [Method Direct]
+ case find (\x -> methodName x == "main") methods of
+ Just m -> do
+ let mi = MethodInfo "main" bclspath $ methodSignature m
+ rawmethod <- parseMethod cls "main" $ methodSignature m
+ entry <- compileBB mi rawmethod mi
+ addMethodRef entry mi [bclspath]
+ printfInfo "executing `main' now:\n"
+ executeFuncPtr $ fst entry
+ Nothing -> error "main not found"
projects / mate.git / blobdiff