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-- OpenOCD RPC example, covered by GNU GPLv3 or later
-- Copyright (C) 2014 Paul Fertser
--
-- Example output:
-- $ ./ocdrpc
-- Halting the target, full log output captured:
-- target state: halted
-- target halted due to debug-request, current mode: Thread
-- xPSR: 0x21000000 pc: 0x00003352 msp: 0x20000fe8
--
-- Read memory, parse the result and show as a list of strings:
-- ["0x20001000","0x0000334d","0x00002abb","0x0000118f","0x00002707","0x00002707","0x00002707","0x00000000","0x00000000","0x00000000","0x00000000","0x00002707","0x00002707","0x00000000","0x00002707","0x00002781"]
-- Resuming
{-# LANGUAGE OverloadedStrings #-}
module Main where
import Prelude
import Control.Applicative
import Network.Socket
import System.IO.Streams.Core hiding (connect)
import System.IO.Streams.Network
import System.IO.Streams.Attoparsec
import Data.Attoparsec.ByteString.Char8
import Data.Attoparsec.Combinator
import Data.ByteString.Char8 hiding (putStrLn, concat, map)
import Text.Printf
ocdReply = manyTill anyChar (char '\x1a')
ocdExec (oistream, oostream) command = do
write (Just $ pack $ command ++ "\x1a") oostream
parseFromStream ocdReply oistream
-- For each line: dispose of address, then match hex values
mdwParser = (manyTill anyChar (string ": ") *>
hexadecimal `sepBy` char ' ')
`sepBy` string " \n"
ocdMdw :: (InputStream ByteString, OutputStream ByteString) -> Integer -> Integer -> IO [Integer]
ocdMdw s start count = do
s <- ocdExec s $ "ocd_mdw " ++ show start ++ " " ++ show count
case parseOnly mdwParser (pack s) of
Right r -> return $ concat r
main = do
osock <- socket AF_INET Stream defaultProtocol
haddr <- inet_addr "127.0.0.1"
connect osock (SockAddrInet 6666 haddr)
ostreams <- socketToStreams osock
putStrLn "Halting the target, full log output captured:"
ocdExec ostreams "capture \"halt\"" >>= putStrLn
putStrLn "Read memory, parse the result and show as a list of strings:"
ocdMdw ostreams 0 16 >>= putStrLn . (show :: [String] -> String) . map (printf "0x%08x")
putStrLn "Resuming"
ocdExec ostreams "resume"
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