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These Haskell bindings make large use of c2hs to generate much of the code, so Unicorn's const_generator is not used. The emulator is based on the Either monad transformer. The IO monad is used to run the underlying Unicorn library, while the Either monad is used to handle errors. Instructions on how to build the bindings are located in bindings/haskell/README.TXT. The same samples found in samples/ can be found in bindings/haskell/samples. They should produce the same output, with slight differences in their error handling and messaging.
86 lines
2.4 KiB
Haskell
86 lines
2.4 KiB
Haskell
-- Sample code to demonstrate how to emulate Sparc code
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import Unicorn
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import Unicorn.Hook
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import qualified Unicorn.CPU.Sparc as Sparc
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import qualified Data.ByteString as BS
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import Data.Word
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import qualified Numeric as N (showHex)
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-- Code to be emulated
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--
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-- add %g1, %g2, %g3
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sparcCode :: BS.ByteString
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sparcCode = BS.pack [0x86, 0x00, 0x40, 0x02]
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-- Memory address where emulation starts
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address :: Word64
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address = 0x10000
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-- Pretty-print integral as hex
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showHex :: (Integral a, Show a) => a -> String
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showHex =
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flip N.showHex ""
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-- Calculate code length
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codeLength :: Num a => BS.ByteString -> a
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codeLength =
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fromIntegral . BS.length
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hookBlock :: BlockHook ()
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hookBlock _ addr size _ =
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putStrLn $ ">>> Tracing basic block at 0x" ++ showHex addr ++
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", block size = 0x" ++ (maybe "0" showHex size)
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hookCode :: CodeHook ()
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hookCode _ addr size _ =
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putStrLn $ ">>> Tracing instruction at 0x" ++ showHex addr ++
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", instruction size = 0x" ++ (maybe "0" showHex size)
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testSparc :: IO ()
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testSparc = do
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putStrLn "Emulate SPARC code"
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result <- runEmulator $ do
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-- Initialize emulator in Sparc mode
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uc <- open ArchSparc [ModeSparc32, ModeBigEndian]
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-- Map 2MB memory for this emulation
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memMap uc address (2 * 1024 * 1024) [ProtAll]
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-- Write machine code to be emulated to memory
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memWrite uc address sparcCode
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-- Initialize machine registers
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regWrite uc Sparc.G1 0x1230
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regWrite uc Sparc.G2 0x6789
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regWrite uc Sparc.G3 0x5555
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-- Tracing all basic blocks with customized callback
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blockHookAdd uc hookBlock () 1 0
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-- Tracing all instructions with customized callback
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codeHookAdd uc hookCode () 1 0
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-- Emulate machine code in infinite time (last param = Nothing), or
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-- when finishing all the code
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let codeLen = codeLength sparcCode
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start uc address (address + codeLen) Nothing Nothing
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-- Return results
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g3 <- regRead uc Sparc.G3
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return g3
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case result of
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Right g3 -> do
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-- Now print out some registers
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putStrLn ">>> Emulation done. Below is the CPU context"
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putStrLn $ ">>> G3 = 0x" ++ showHex g3
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Left err -> putStrLn $ "Failed with error: " ++ show err ++ " (" ++
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strerror err ++ ")"
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main :: IO ()
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main =
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testSparc
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