import DriverPhases ( isHaskellUserSrcFilename )
import Config
import Outputable
+import ErrUtils ( putMsg, debugTraceMsg, showPass, Severity(..), Messages )
import Panic ( GhcException(..) )
-import Util ( Suffix, global, notNull, consIORef,
- normalisePath, pgmPath, platformPath )
+import Util ( Suffix, global, notNull, consIORef, joinFileName,
+ normalisePath, pgmPath, platformPath, joinFileExt )
import DynFlags ( DynFlags(..), DynFlag(..), dopt, Option(..),
setTmpDir, defaultDynFlags )
-import EXCEPTION ( throwDyn )
+import EXCEPTION ( throwDyn, finally )
import DATA_IOREF ( IORef, readIORef, writeIORef )
import DATA_INT
import Monad ( when, unless )
import System ( ExitCode(..), getEnv, system )
-import IO ( try, catch,
- openFile, hPutStrLn, hPutStr, hClose, hFlush, IOMode(..),
- stderr )
+import IO ( try, catch, hGetContents,
+ openFile, hPutStr, hClose, hFlush, IOMode(..),
+ stderr, ioError, isDoesNotExistError )
import Directory ( doesFileExist, removeFile )
+import Maybe ( isJust )
import List ( partition )
-- GHC <= 4.08 didn't have rawSystem, and runs into problems with long command
#if __GLASGOW_HASKELL__ < 603
-- rawSystem comes from libghccompat.a in stage1
import Compat.RawSystem ( rawSystem )
+import GHC.IOBase ( IOErrorType(..) )
+import System.IO.Error ( ioeGetErrorType )
#else
-import System.Cmd ( rawSystem )
+import System.Process ( runInteractiveProcess, getProcessExitCode )
+import System.IO ( hSetBuffering, hGetLine, BufferMode(..) )
+import Control.Concurrent( forkIO, newChan, readChan, writeChan )
+import Text.Regex
+import Data.Char ( isSpace )
+import FastString ( mkFastString )
+import SrcLoc ( SrcLoc, mkSrcLoc, noSrcSpan, mkSrcSpan )
#endif
\end{code}
%************************************************************************
\begin{code}
-initSysTools :: [String] -- Command-line arguments starting "-B"
+initSysTools :: Maybe String -- Maybe TopDir path (without the '-B' prefix)
-> DynFlags
-> IO DynFlags -- Set all the mutable variables above, holding
-- (c) the GHC usage message
-initSysTools minusB_args dflags
- = do { (am_installed, top_dir) <- findTopDir minusB_args
+initSysTools mbMinusB dflags
+ = do { (am_installed, top_dir) <- findTopDir mbMinusB
; writeIORef v_TopDir top_dir
-- top_dir
-- for "installed" this is the root of GHC's support files
; let installed, installed_bin :: FilePath -> FilePath
installed_bin pgm = pgmPath top_dir pgm
installed file = pgmPath top_dir file
- inplace dir pgm = pgmPath (top_dir `slash`
- cPROJECT_DIR `slash` dir) pgm
+ inplace dir pgm = pgmPath (top_dir `joinFileName`
+ cPROJECT_DIR `joinFileName` dir) pgm
; let pkgconfig_path
| am_installed = installed "package.conf"
--
-- Plan of action:
-- 1. Set proto_top_dir
--- a) look for (the last) -B flag, and use it
--- b) if there are no -B flags, get the directory
--- where GHC is running (only on Windows)
+-- if there is no given TopDir path, get the directory
+-- where GHC is running (only on Windows)
--
-- 2. If package.conf exists in proto_top_dir, we are running
-- installed; and TopDir = proto_top_dir
--
-- This is very gruesome indeed
-findTopDir :: [String]
- -> IO (Bool, -- True <=> am installed, False <=> in-place
- String) -- TopDir (in Unix format '/' separated)
+findTopDir :: Maybe String -- Maybe TopDir path (without the '-B' prefix).
+ -> IO (Bool, -- True <=> am installed, False <=> in-place
+ String) -- TopDir (in Unix format '/' separated)
-findTopDir minusbs
+findTopDir mbMinusB
= do { top_dir <- get_proto
-- Discover whether we're running in a build tree or in an installation,
-- by looking for the package configuration file.
- ; am_installed <- doesFileExist (top_dir `slash` "package.conf")
+ ; am_installed <- doesFileExist (top_dir `joinFileName` "package.conf")
; return (am_installed, top_dir)
}
where
-- get_proto returns a Unix-format path (relying on getBaseDir to do so too)
- get_proto | notNull minusbs
- = return (normalisePath (drop 2 (last minusbs))) -- 2 for "-B"
- | otherwise
- = do { maybe_exec_dir <- getBaseDir -- Get directory of executable
- ; case maybe_exec_dir of -- (only works on Windows;
- -- returns Nothing on Unix)
- Nothing -> throwDyn (InstallationError "missing -B<dir> option")
- Just dir -> return dir
- }
+ get_proto = case mbMinusB of
+ Just minusb -> return (normalisePath minusb)
+ Nothing
+ -> do maybe_exec_dir <- getBaseDir -- Get directory of executable
+ case maybe_exec_dir of -- (only works on Windows;
+ -- returns Nothing on Unix)
+ Nothing -> throwDyn (InstallationError "missing -B<dir> option")
+ Just dir -> return dir
\end{code}
runCc :: DynFlags -> [Option] -> IO ()
runCc dflags args = do
let (p,args0) = pgm_c dflags
- runSomething dflags "C Compiler" p (args0++args)
+ runSomethingFiltered dflags cc_filter "C Compiler" p (args0++args)
+ 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'
+
+ r_from = mkRegex "from.*:[0-9]+"
+ r_warn = mkRegex "warning: call-clobbered register used"
runMangle :: DynFlags -> [Option] -> IO ()
runMangle dflags args = do
copy :: DynFlags -> String -> String -> String -> IO ()
copy dflags purpose from to = do
- when (verbosity dflags >= 2) $ hPutStrLn stderr ("*** " ++ purpose)
+ showPass dflags purpose
h <- openFile to WriteMode
ls <- readFile from -- inefficient, but it'll do for now.
newTempName :: DynFlags -> Suffix -> IO FilePath
newTempName DynFlags{tmpDir=tmp_dir} extn
= do x <- getProcessID
- findTempName tmp_dir x
+ findTempName (tmp_dir ++ "/ghc" ++ show x ++ "_") 0
where
- findTempName tmp_dir x
- = do let filename = tmp_dir ++ "/ghc" ++ show x ++ '.':extn
+ findTempName prefix x
+ = do let filename = (prefix ++ show x) `joinFileExt` extn
b <- doesFileExist filename
- if b then findTempName tmp_dir (x+1)
+ if b then findTempName prefix (x+1)
else do consIORef v_FilesToClean filename -- clean it up later
return filename
("Deleting: " ++ unwords deletees)
(mapM_ rm deletees)
where
- verb = verbosity dflags
-
-- Flat out refuse to delete files that are likely to be source input
-- files (is there a worse bug than having a compiler delete your source
-- files?)
warnNon act
| null non_deletees = act
| otherwise = do
- hPutStrLn stderr ("WARNING - NOT deleting source files: " ++ unwords non_deletees)
+ putMsg dflags (text "WARNING - NOT deleting source files:" <+> hsep (map text non_deletees))
act
(non_deletees, deletees) = partition isHaskellUserSrcFilename fs
rm f = removeFile f `IO.catch`
(\_ignored ->
- when (verb >= 2) $
- hPutStrLn stderr ("Warning: deleting non-existent " ++ f)
+ debugTraceMsg dflags 2 (ptext SLIT("Warning: deleting non-existent") <+> text f)
)
-- runSomething will dos-ify them
-> IO ()
-runSomething dflags phase_name pgm args = do
+runSomething dflags phase_name pgm args =
+ runSomethingFiltered dflags id phase_name pgm args
+
+runSomethingFiltered
+ :: DynFlags -> (String->String) -> String -> String -> [Option] -> IO ()
+
+runSomethingFiltered dflags filter_fn phase_name pgm args = do
let real_args = filter notNull (map showOpt args)
traceCmd dflags phase_name (unwords (pgm:real_args)) $ do
- exit_code <- rawSystem pgm real_args
- case exit_code of
- ExitSuccess ->
- return ()
- -- rawSystem returns (ExitFailure 127) if the exec failed for any
- -- reason (eg. the program doesn't exist). This is the only clue
- -- we have, but we need to report something to the user because in
- -- the case of a missing program there will otherwise be no output
- -- at all.
- ExitFailure 127 ->
- throwDyn (InstallationError ("could not execute: " ++ pgm))
- ExitFailure _other ->
- throwDyn (PhaseFailed phase_name exit_code)
+ (exit_code, doesn'tExist) <-
+ IO.catch (do
+ rc <- builderMainLoop dflags filter_fn pgm real_args
+ case rc of
+ ExitSuccess{} -> return (rc, False)
+ ExitFailure n
+ -- rawSystem returns (ExitFailure 127) if the exec failed for any
+ -- reason (eg. the program doesn't exist). This is the only clue
+ -- we have, but we need to report something to the user because in
+ -- the case of a missing program there will otherwise be no output
+ -- at all.
+ | n == 127 -> return (rc, True)
+ | otherwise -> return (rc, False))
+ -- Should 'rawSystem' generate an IO exception indicating that
+ -- 'pgm' couldn't be run rather than a funky return code, catch
+ -- this here (the win32 version does this, but it doesn't hurt
+ -- to test for this in general.)
+ (\ err ->
+ if IO.isDoesNotExistError err
+#if defined(mingw32_HOST_OS) && __GLASGOW_HASKELL__ < 604
+ -- the 'compat' version of rawSystem under mingw32 always
+ -- maps 'errno' to EINVAL to failure.
+ || case (ioeGetErrorType err ) of { InvalidArgument{} -> True ; _ -> False}
+#endif
+ then return (ExitFailure 1, True)
+ else IO.ioError err)
+ case (doesn'tExist, exit_code) of
+ (True, _) -> throwDyn (InstallationError ("could not execute: " ++ pgm))
+ (_, ExitSuccess) -> return ()
+ _ -> throwDyn (PhaseFailed phase_name exit_code)
+
+
+
+#if __GLASGOW_HASKELL__ < 603
+builderMainLoop dflags filter_fn pgm real_args = do
+ rawSystem pgm real_args
+#else
+builderMainLoop dflags filter_fn pgm real_args = do
+ chan <- newChan
+ (hStdIn, hStdOut, hStdErr, hProcess) <- runInteractiveProcess pgm real_args Nothing Nothing
+
+ -- and run a loop piping the output from the compiler to the log_action in DynFlags
+ hSetBuffering hStdOut LineBuffering
+ hSetBuffering hStdErr LineBuffering
+ forkIO (readerProc chan hStdOut filter_fn)
+ forkIO (readerProc chan hStdErr filter_fn)
+ rc <- loop chan hProcess 2 1 ExitSuccess
+ hClose hStdIn
+ hClose hStdOut
+ hClose hStdErr
+ return rc
+ where
+ -- status starts at zero, and increments each time either
+ -- a reader process gets EOF, or the build proc exits. We wait
+ -- for all of these to happen (status==3).
+ -- ToDo: we should really have a contingency plan in case any of
+ -- the threads dies, such as a timeout.
+ loop chan hProcess 0 0 exitcode = return exitcode
+ loop chan hProcess t p exitcode = do
+ mb_code <- if p > 0
+ then getProcessExitCode hProcess
+ else return Nothing
+ case mb_code of
+ Just code -> loop chan hProcess t (p-1) code
+ Nothing
+ | t > 0 -> do
+ msg <- readChan chan
+ case msg of
+ BuildMsg msg -> do
+ log_action dflags SevInfo noSrcSpan defaultUserStyle msg
+ loop chan hProcess t p exitcode
+ BuildError loc msg -> do
+ log_action dflags SevError (mkSrcSpan loc loc) defaultUserStyle msg
+ loop chan hProcess t p exitcode
+ EOF ->
+ loop chan hProcess (t-1) p exitcode
+ | otherwise -> loop chan hProcess t p exitcode
+
+readerProc chan hdl filter_fn =
+ (do str <- hGetContents hdl
+ loop (lines (filter_fn str)) Nothing)
+ `finally`
+ writeChan chan EOF
+ -- ToDo: check errors more carefully
+ -- ToDo: in the future, the filter should be implemented as
+ -- a stream transformer.
+ where
+ loop [] Nothing = return ()
+ loop [] (Just err) = writeChan chan err
+ loop (l:ls) in_err =
+ case in_err of
+ Just err@(BuildError srcLoc msg)
+ | leading_whitespace l -> do
+ loop ls (Just (BuildError srcLoc (msg $$ text l)))
+ | otherwise -> do
+ writeChan chan err
+ checkError l ls
+ Nothing -> do
+ checkError l ls
+
+ checkError l ls
+ = case matchRegex errRegex 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
+ loop ls (Just (BuildError srcLoc (text msg)))
+
+ leading_whitespace [] = False
+ leading_whitespace (x:_) = isSpace x
+
+errRegex = mkRegex "^([^:]*):([0-9]+):([0-9]+:)?(.*)"
+
+data BuildMessage
+ = BuildMsg !SDoc
+ | BuildError !SrcLoc !SDoc
+ | EOF
+#endif
showOpt (FileOption pre f) = pre ++ platformPath f
showOpt (Option "") = ""
-- b) don't do it at all if dry-run is set
traceCmd dflags phase_name cmd_line action
= do { let verb = verbosity dflags
- ; when (verb >= 2) $ hPutStrLn stderr ("*** " ++ phase_name)
- ; when (verb >= 3) $ hPutStrLn stderr cmd_line
+ ; showPass dflags phase_name
+ ; debugTraceMsg dflags 3 (text cmd_line)
; hFlush stderr
-- Test for -n flag
; action `IO.catch` handle_exn verb
}}
where
- handle_exn verb exn = do { when (verb >= 2) (hPutStr stderr "\n")
- ; when (verb >= 3) (hPutStrLn stderr ("Failed: " ++ cmd_line ++ (show exn)))
+ handle_exn verb exn = do { debugTraceMsg dflags 2 (char '\n')
+ ; debugTraceMsg dflags 2 (ptext SLIT("Failed:") <+> text cmd_line <+> text (show exn))
; throwDyn (PhaseFailed phase_name (ExitFailure 1)) }
\end{code}
------------------------------------------------------------------------------
- Path name construction
-
-\begin{code}
-slash :: String -> String -> String
-slash s1 s2 = s1 ++ ('/' : s2)
-\end{code}
-
-
%************************************************************************
%* *
\subsection{Support code}
-----------------------------------------------------------------------------
-- Define getBaseDir :: IO (Maybe String)
-#if defined(mingw32_HOST_OS)
getBaseDir :: IO (Maybe String)
+#if defined(mingw32_HOST_OS)
-- Assuming we are running ghc, accessed by path $()/bin/ghc.exe,
-- return the path $(stuff). Note that we drop the "bin/" directory too.
getBaseDir = do let len = (2048::Int) -- plenty, PATH_MAX is 512 under Win32.
foreign import stdcall unsafe "GetModuleFileNameA"
getModuleFileName :: Ptr () -> CString -> Int -> IO Int32
#else
-getBaseDir :: IO (Maybe String) = do return Nothing
+getBaseDir = return Nothing
#endif
#ifdef mingw32_HOST_OS
projects / ghc-hetmet.git / blobdiff