runMkDLL,
touch, -- String -> String -> IO ()
- copy, -- String -> String -> String -> IO ()
+ copy,
+ copyWithHeader,
normalisePath, -- FilePath -> FilePath
-- Temporary-file management
cleanTempDirs, cleanTempFiles, cleanTempFilesExcept,
addFilesToClean,
- -- System interface
- system, -- String -> IO ExitCode
-
Option(..)
) where
import Control.Exception
import Data.IORef
-import Data.Int
import Control.Monad
import System.Exit
import System.Environment
import System.IO
import SYSTEM_IO_ERROR as IO
import System.Directory
+import Data.Char
import Data.Maybe
import Data.List
--- GHC <= 4.08 didn't have rawSystem, and runs into problems with long command
--- lines on mingw32, so we disallow it now.
-#if __GLASGOW_HASKELL__ < 500
-#error GHC >= 5.00 is required for bootstrapping GHC
-#endif
-
#ifndef mingw32_HOST_OS
#if __GLASGOW_HASKELL__ > 504
import qualified System.Posix.Internals
import qualified Posix
#endif
#else /* Must be Win32 */
-import List ( isPrefixOf )
-import Util ( dropList )
import Foreign
import CString ( CString, peekCString )
#endif
-import Text.Regex
-
#if __GLASGOW_HASKELL__ < 603
-- rawSystem comes from libghccompat.a in stage1
import Compat.RawSystem ( rawSystem )
import System.Cmd ( system )
import GHC.IOBase ( IOErrorType(..) )
#else
-import System.Cmd ( rawSystem, system )
import System.Process ( runInteractiveProcess, getProcessExitCode )
import Control.Concurrent( forkIO, newChan, readChan, writeChan )
import Data.Char ( isSpace )
runCc :: DynFlags -> [Option] -> IO ()
runCc dflags args = do
let (p,args0) = pgm_c dflags
- runSomethingFiltered dflags cc_filter "C Compiler" p (args0++args)
+ (args1,mb_env) <- getGccEnv (args0++args)
+ runSomethingFiltered dflags cc_filter "C Compiler" p args1 mb_env
where
-- discard some harmless warnings from gcc that we can't turn off
- cc_filter str = unlines (do_filter (lines str))
-
- do_filter [] = []
- do_filter ls@(l:ls')
- | (w:rest) <- dropWhile (isJust .matchRegex r_from) ls,
- isJust (matchRegex r_warn w)
- = do_filter rest
- | otherwise
- = l : do_filter ls'
+ cc_filter = unlines . doFilter . lines
+
+ {-
+ gcc gives warnings in chunks like so:
+ In file included from /foo/bar/baz.h:11,
+ from /foo/bar/baz2.h:22,
+ from wibble.c:33:
+ /foo/flibble:14: global register variable ...
+ /foo/flibble:15: warning: call-clobbered r...
+ We break it up into its chunks, remove any call-clobbered register
+ warnings from each chunk, and then delete any chunks that we have
+ emptied of warnings.
+ -}
+ doFilter = unChunkWarnings . filterWarnings . chunkWarnings []
+ -- We can't assume that the output will start with an "In file inc..."
+ -- line, so we start off expecting a list of warnings rather than a
+ -- location stack.
+ chunkWarnings :: [String] -- The location stack to use for the next
+ -- list of warnings
+ -> [String] -- The remaining lines to look at
+ -> [([String], [String])]
+ chunkWarnings loc_stack [] = [(loc_stack, [])]
+ chunkWarnings loc_stack xs
+ = case break loc_stack_start xs of
+ (warnings, lss:xs') ->
+ case span loc_start_continuation xs' of
+ (lsc, xs'') ->
+ (loc_stack, warnings) : chunkWarnings (lss : lsc) xs''
+ _ -> [(loc_stack, xs)]
+
+ filterWarnings :: [([String], [String])] -> [([String], [String])]
+ filterWarnings [] = []
+ -- If the warnings are already empty then we are probably doing
+ -- something wrong, so don't delete anything
+ filterWarnings ((xs, []) : zs) = (xs, []) : filterWarnings zs
+ filterWarnings ((xs, ys) : zs) = case filter wantedWarning ys of
+ [] -> filterWarnings zs
+ ys' -> (xs, ys') : filterWarnings zs
+
+ unChunkWarnings :: [([String], [String])] -> [String]
+ unChunkWarnings [] = []
+ unChunkWarnings ((xs, ys) : zs) = xs ++ ys ++ unChunkWarnings zs
+
+ loc_stack_start s = "In file included from " `isPrefixOf` s
+ loc_start_continuation s = " from " `isPrefixOf` s
+ wantedWarning w
+ | "warning: call-clobbered register used" `isContainedIn` w = False
+ | otherwise = True
+
+isContainedIn :: String -> String -> Bool
+xs `isContainedIn` ys = any (xs `isPrefixOf`) (tails ys)
+
+-- Turn the -B<dir> option to gcc into the GCC_EXEC_PREFIX env var, to
+-- workaround a bug in MinGW gcc on Windows Vista, see bug #1110.
+getGccEnv :: [Option] -> IO ([Option], Maybe [(String,String)])
+getGccEnv opts =
+#if __GLASGOW_HASKELL__ < 603
+ return (opts,Nothing)
+#else
+ if null b_dirs
+ then return (opts,Nothing)
+ else do env <- getEnvironment
+ return (rest, Just (("GCC_EXEC_PREFIX", head b_dirs) : env))
+ where
+ (b_dirs, rest) = partitionWith get_b_opt opts
- r_from = mkRegex "from.*:[0-9]+"
- r_warn = mkRegex "warning: call-clobbered register used"
+ get_b_opt (Option ('-':'B':dir)) = Left dir
+ get_b_opt other = Right other
+#endif
runMangle :: DynFlags -> [Option] -> IO ()
runMangle dflags args = do
runMkDLL :: DynFlags -> [Option] -> IO ()
runMkDLL dflags args = do
let (p,args0) = pgm_dll dflags
- runSomething dflags "Make DLL" p (args0++args)
+ (args1,mb_env) <- getGccEnv (args0++args)
+ runSomethingFiltered dflags id "Make DLL" p args1 mb_env
touch :: DynFlags -> String -> String -> IO ()
touch dflags purpose arg =
runSomething dflags purpose (pgm_T dflags) [FileOption "" arg]
-copy :: DynFlags -> String -> String -> String -> IO ()
-copy dflags purpose from to = do
+copy :: DynFlags -> String -> FilePath -> FilePath -> IO ()
+copy dflags purpose from to = copyWithHeader dflags purpose Nothing from to
+
+copyWithHeader :: DynFlags -> String -> Maybe String -> FilePath -> FilePath
+ -> IO ()
+copyWithHeader dflags purpose maybe_header from to = do
showPass dflags purpose
h <- openFile to WriteMode
ls <- readFile from -- inefficient, but it'll do for now.
-- ToDo: speed up via slurping.
+ maybe (return ()) (hPutStr h) maybe_header
hPutStr h ls
hClose h
+
\end{code}
%************************************************************************
\begin{code}
cleanTempDirs :: DynFlags -> IO ()
cleanTempDirs dflags
- = do ds <- readIORef v_DirsToClean
+ = unless (dopt Opt_KeepTmpFiles dflags)
+ $ do ds <- readIORef v_DirsToClean
removeTmpDirs dflags (eltsFM ds)
writeIORef v_DirsToClean emptyFM
cleanTempFiles :: DynFlags -> IO ()
cleanTempFiles dflags
- = do fs <- readIORef v_FilesToClean
- removeTmpFiles dflags fs
- writeIORef v_FilesToClean []
+ = unless (dopt Opt_KeepTmpFiles dflags)
+ $ do fs <- readIORef v_FilesToClean
+ removeTmpFiles dflags fs
+ writeIORef v_FilesToClean []
cleanTempFilesExcept :: DynFlags -> [FilePath] -> IO ()
cleanTempFilesExcept dflags dont_delete
- = do files <- readIORef v_FilesToClean
- let (to_keep, to_delete) = partition (`elem` dont_delete) files
- removeTmpFiles dflags to_delete
- writeIORef v_FilesToClean to_keep
+ = unless (dopt Opt_KeepTmpFiles dflags)
+ $ do files <- readIORef v_FilesToClean
+ let (to_keep, to_delete) = partition (`elem` dont_delete) files
+ removeTmpFiles dflags to_delete
+ writeIORef v_FilesToClean to_keep
-- find a temporary name that doesn't already exist.
-> IO ()
runSomething dflags phase_name pgm args =
- runSomethingFiltered dflags id phase_name pgm args
+ runSomethingFiltered dflags id phase_name pgm args Nothing
runSomethingFiltered
- :: DynFlags -> (String->String) -> String -> String -> [Option] -> IO ()
+ :: DynFlags -> (String->String) -> String -> String -> [Option]
+ -> Maybe [(String,String)] -> IO ()
-runSomethingFiltered dflags filter_fn phase_name pgm args = do
+runSomethingFiltered dflags filter_fn phase_name pgm args mb_env = do
let real_args = filter notNull (map showOpt args)
traceCmd dflags phase_name (unwords (pgm:real_args)) $ do
(exit_code, doesn'tExist) <-
IO.catch (do
- rc <- builderMainLoop dflags filter_fn pgm real_args
+ rc <- builderMainLoop dflags filter_fn pgm real_args mb_env
case rc of
ExitSuccess{} -> return (rc, False)
ExitFailure n
#if __GLASGOW_HASKELL__ < 603
-builderMainLoop dflags filter_fn pgm real_args = do
+builderMainLoop dflags filter_fn pgm real_args mb_env = do
rawSystem pgm real_args
#else
-builderMainLoop dflags filter_fn pgm real_args = do
+builderMainLoop dflags filter_fn pgm real_args mb_env = do
chan <- newChan
- (hStdIn, hStdOut, hStdErr, hProcess) <- runInteractiveProcess pgm real_args Nothing Nothing
+ (hStdIn, hStdOut, hStdErr, hProcess) <- runInteractiveProcess pgm real_args Nothing mb_env
-- and run a loop piping the output from the compiler to the log_action in DynFlags
hSetBuffering hStdOut LineBuffering
checkError l ls
checkError l ls
- = case matchRegex errRegex l of
+ = case parseError l of
Nothing -> do
writeChan chan (BuildMsg (text l))
loop ls Nothing
- Just (file':lineno':colno':msg:_) -> do
- let file = mkFastString file'
- lineno = read lineno'::Int
- colno = case colno' of
- "" -> 0
- _ -> read (init colno') :: Int
- srcLoc = mkSrcLoc file lineno colno
+ Just (file, lineNum, colNum, msg) -> do
+ let srcLoc = mkSrcLoc (mkFastString file) lineNum colNum
loop ls (Just (BuildError srcLoc (text msg)))
leading_whitespace [] = False
leading_whitespace (x:_) = isSpace x
-errRegex = mkRegex "^([^:]*):([0-9]+):([0-9]+:)?(.*)"
+parseError :: String -> Maybe (String, Int, Int, String)
+parseError s0 = case breakColon s0 of
+ Just (filename, s1) ->
+ case breakIntColon s1 of
+ Just (lineNum, s2) ->
+ case breakIntColon s2 of
+ Just (columnNum, s3) ->
+ Just (filename, lineNum, columnNum, s3)
+ Nothing ->
+ Just (filename, lineNum, 0, s2)
+ Nothing -> Nothing
+ Nothing -> Nothing
+
+breakColon :: String -> Maybe (String, String)
+breakColon xs = case break (':' ==) xs of
+ (ys, _:zs) -> Just (ys, zs)
+ _ -> Nothing
+
+breakIntColon :: String -> Maybe (Int, String)
+breakIntColon xs = case break (':' ==) xs of
+ (ys, _:zs)
+ | not (null ys) && all isAscii ys && all isDigit ys ->
+ Just (read ys, zs)
+ _ -> Nothing
data BuildMessage
= BuildMsg !SDoc