X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FMain.hs;h=6bbded77b829fa7c47e745436d25c2a8ad0a31a3;hb=f4eba96b198baf4499ca6ccd7242d9daa41337ac;hp=bc5d04b3c17a166d24878dbc0bfce3c2ed94ba6b;hpb=266d38920b7292bd75d959b3c2c263a2b025da17;p=ghc-hetmet.git diff --git a/ghc/compiler/main/Main.hs b/ghc/compiler/main/Main.hs index bc5d04b..6bbded7 100644 --- a/ghc/compiler/main/Main.hs +++ b/ghc/compiler/main/Main.hs @@ -1,6 +1,6 @@ -{-# OPTIONS -W -fno-warn-incomplete-patterns #-} +{-# OPTIONS -fno-warn-incomplete-patterns #-} ----------------------------------------------------------------------------- --- $Id: Main.hs,v 1.10 2000/10/26 16:21:02 sewardj Exp $ +-- $Id: Main.hs,v 1.62 2001/03/28 11:01:19 simonmar Exp $ -- -- GHC Driver program -- @@ -15,26 +15,37 @@ module Main (main) where #include "HsVersions.h" + +#ifdef GHCI +import InteractiveUI +#endif + +#ifndef mingw32_TARGET_OS +import Dynamic +import Posix +#endif + +import CompManager +import ParsePkgConf import DriverPipeline import DriverState import DriverFlags import DriverMkDepend import DriverUtil -import DriverPhases ( Phase(..) ) -import CmdLineOpts ( HscLang(..), DynFlags(..) ) +import Panic +import DriverPhases ( Phase(..), haskellish_file, objish_file ) +import CmdLineOpts import TmpFiles +import Finder ( initFinder ) +import CmStaticInfo import Config +import Outputable import Util -import Panic import Concurrent -#ifndef mingw32_TARGET_OS -import Posix -#endif import Directory import IOExts import Exception -import Dynamic import IO import Monad @@ -42,6 +53,7 @@ import List import System import Maybe + ----------------------------------------------------------------------------- -- Changes: @@ -51,17 +63,16 @@ import Maybe ----------------------------------------------------------------------------- -- ToDo: +-- -nohi doesn't work -- new mkdependHS doesn't support all the options that the old one did (-X et al.) -- time commands when run with -v -- split marker --- mkDLL -- java generation -- user ways -- Win32 support: proper signal handling -- make sure OPTIONS in .hs file propogate to .hc file if -C or -keep-hc-file-too -- reading the package configuration file is too slow --- -H, -K, -Rghc-timing --- hi-diffs +-- -K ----------------------------------------------------------------------------- -- Differences vs. old driver: @@ -69,25 +80,29 @@ import Maybe -- No more "Enter your Haskell program, end with ^D (on a line of its own):" -- consistency checking removed (may do this properly later) -- removed -noC --- no hi diffs (could be added later) -- no -Ofile ----------------------------------------------------------------------------- -- Main loop main = + -- top-level exception handler: any unrecognised exception is a compiler bug. + handle (\exception -> do hPutStr stderr (show (Panic (show exception))) + exitWith (ExitFailure 1) + ) $ do + -- all error messages are propagated as exceptions handleDyn (\dyn -> case dyn of PhaseFailed _phase code -> exitWith code Interrupted -> exitWith (ExitFailure 1) - _ -> do hPutStrLn stderr (show (dyn :: BarfKind)) + _ -> do hPutStrLn stderr (show (dyn :: GhcException)) exitWith (ExitFailure 1) - ) $ do + ) $ do -- make sure we clean up after ourselves later (do forget_it <- readIORef v_Keep_tmp_files unless forget_it $ do - verb <- readIORef v_Verbose + verb <- dynFlag verbosity cleanTempFiles verb ) $ do -- exceptions will be blocked while we clean the temporary files, @@ -103,16 +118,13 @@ main = installHandler sigINT sig_handler Nothing #endif - pgm <- getProgName - writeIORef v_Prog_name pgm - argv <- getArgs -- grab any -B options from the command line first argv' <- setTopDir argv top_dir <- readIORef v_TopDir - let installed s = top_dir ++ s + let installed s = top_dir ++ '/':s inplace s = top_dir ++ '/':cCURRENT_DIR ++ '/':s installed_pkgconfig = installed ("package.conf") @@ -127,7 +139,9 @@ main = else do am_inplace <- doesFileExist inplace_pkgconfig if am_inplace then writeIORef v_Path_package_config inplace_pkgconfig - else throwDyn (OtherError "can't find package.conf") + else throwDyn (InstallationError + ("Can't find package.conf in " ++ + inplace_pkgconfig)) -- set the location of our various files if am_installed @@ -143,124 +157,192 @@ main = -- read the package configuration conf_file <- readIORef v_Path_package_config - contents <- readFile conf_file - writeIORef v_Package_details (read contents) + r <- parsePkgConf conf_file + case r of { + Left err -> throwDyn (InstallationError (showSDoc err)); + Right pkg_details -> do + + writeIORef v_Package_details pkg_details -- find the phase to stop after (i.e. -E, -C, -c, -S flags) (flags2, mode, stop_flag) <- getGhcMode argv' writeIORef v_GhcMode mode - -- force lang to "C" if the -C flag was given - case mode of StopBefore HCc -> writeIORef v_Hsc_Lang HscC - _ -> return () + -- Show the GHCi banner? +# ifdef GHCI + when (mode == DoInteractive) $ + hPutStrLn stdout ghciWelcomeMsg +# endif -- process all the other arguments, and get the source files non_static <- processArgs static_flags flags2 [] - -- find the build tag, and re-process the build-specific options - more_opts <- findBuildTag - _ <- processArgs static_flags more_opts [] - + -- -O and --interactive are not a good combination + -- ditto with any kind of way selection + orig_opt_level <- readIORef v_OptLevel + when (orig_opt_level > 0 && mode == DoInteractive) $ + do putStr "warning: -O conflicts with --interactive; -O turned off.\n" + writeIORef v_OptLevel 0 + orig_ways <- readIORef v_Ways + when (not (null orig_ways) && mode == DoInteractive) $ + do throwDyn (UsageError + "--interactive can't be used with -prof, -ticky, -unreg or -smp.") + + -- Find the build tag, and re-process the build-specific options. + -- Also add in flags for unregisterised compilation, if + -- GhcUnregisterised=YES. + way_opts <- findBuildTag + let unreg_opts | cGhcUnregisterised == "YES" = unregFlags + | otherwise = [] + way_non_static <- processArgs static_flags (unreg_opts ++ way_opts) [] + -- give the static flags to hsc static_opts <- buildStaticHscOpts writeIORef v_Static_hsc_opts static_opts - -- warnings - warn_level <- readIORef v_Warning_opt - - let warn_opts = case warn_level of - W_default -> standardWarnings - W_ -> minusWOpts - W_all -> minusWallOpts - W_not -> [] - - -- build the default DynFlags (these may be adjusted on a per - -- module basis by OPTIONS pragmas and settings in the interpreter). + -- build the default DynFlags (these may be adjusted on a per + -- module basis by OPTIONS pragmas and settings in the interpreter). core_todo <- buildCoreToDo stg_todo <- buildStgToDo - lang <- readIORef v_Hsc_Lang + -- set the "global" HscLang. The HscLang can be further adjusted on a module + -- by module basis, using only the -fvia-C and -fasm flags. If the global + -- HscLang is not HscC or HscAsm, -fvia-C and -fasm have no effect. + opt_level <- readIORef v_OptLevel + + + let lang = case mode of + StopBefore HCc -> HscC + DoInteractive -> HscInterpreted + _other | opt_level >= 1 -> HscC -- -O implies -fvia-C + | otherwise -> defaultHscLang + writeIORef v_DynFlags - DynFlags{ coreToDo = core_todo, - stgToDo = stg_todo, - hscLang = lang, - -- leave out hscOutName for now - flags = [] } + defaultDynFlags{ coreToDo = core_todo, + stgToDo = stg_todo, + hscLang = lang, + -- leave out hscOutName for now + hscOutName = panic "Main.main:hscOutName not set", + + verbosity = case mode of + DoInteractive -> 1 + DoMake -> 1 + _other -> 0, + } -- the rest of the arguments are "dynamic" - srcs <- processArgs dynamic_flags non_static [] + srcs <- processArgs dynamic_flags (way_non_static ++ non_static) [] -- save the "initial DynFlags" away - dyn_flags <- readIORef v_DynFlags - writeIORef v_InitDynFlags dyn_flags + init_dyn_flags <- readIORef v_DynFlags + writeIORef v_InitDynFlags init_dyn_flags -- complain about any unknown flags - let unknown_flags = [ f | ('-':f) <- srcs ] - mapM unknownFlagErr unknown_flags + mapM unknownFlagErr [ f | f@('-':_) <- srcs ] + + verb <- dynFlag verbosity + + when (verb >= 2) + (do hPutStr stderr "Glasgow Haskell Compiler, Version " + hPutStr stderr cProjectVersion + hPutStr stderr ", for Haskell 98, compiled by GHC version " + hPutStrLn stderr cBooterVersion) - -- get the -v flag - verb <- readIORef v_Verbose + when (verb >= 2) + (hPutStrLn stderr ("Using package config file: " ++ conf_file)) - when verb (do hPutStr stderr "Glasgow Haskell Compiler, Version " - hPutStr stderr version_str - hPutStr stderr ", for Haskell 98, compiled by GHC version " - hPutStrLn stderr booter_version) + when (verb >= 3) + (hPutStrLn stderr ("Hsc static flags: " ++ unwords static_opts)) - when verb (hPutStrLn stderr ("Using package config file: " ++ conf_file)) + -- initialise the finder + pkg_avails <- getPackageInfo + initFinder pkg_avails -- mkdependHS is special when (mode == DoMkDependHS) beginMkDependHS - -- make is special - when (mode == DoMake) beginMake - - -- for each source file, find which phases to run - pipelines <- mapM (genPipeline mode stop_flag) srcs - let src_pipelines = zip srcs pipelines + -- make/interactive require invoking the compilation manager + if (mode == DoMake) then beginMake srcs else do + if (mode == DoInteractive) then beginInteractive srcs else do + -- sanity checking o_file <- readIORef v_Output_file - if isJust o_file && mode /= DoLink && length srcs > 1 - then throwDyn (UsageError "can't apply -o option to multiple source files") + ohi <- readIORef v_Output_hi + if length srcs > 1 && (isJust ohi || (isJust o_file && mode /= DoLink && mode /= DoMkDLL)) + then throwDyn (UsageError "can't apply -o or -ohi options to multiple source files") else do if null srcs then throwDyn (UsageError "no input files") else do - -- save the flag state, because this could be modified by OPTIONS pragmas - -- during the compilation, and we'll need to restore it before starting - -- the next compilation. - saved_driver_state <- readIORef v_Driver_state - - let compileFile (src, phases) = do - r <- runPipeline phases src (mode==DoLink) True - writeIORef v_Driver_state saved_driver_state + let compileFile src = do + writeIORef v_DynFlags init_dyn_flags + + exists <- doesFileExist src + when (not exists) $ + throwDyn (CmdLineError ("file `" ++ src ++ "' does not exist")) + + -- We compile in two stages, because the file may have an + -- OPTIONS pragma that affects the compilation pipeline (eg. -fvia-C) + let (basename, suffix) = splitFilename src + + -- just preprocess + pp <- if not (haskellish_file src) || mode == StopBefore Hsc + then return src else do + phases <- genPipeline (StopBefore Hsc) stop_flag + False{-not persistent-} defaultHscLang src + pipeLoop phases src False{-no linking-} False{-no -o flag-} + basename suffix + + -- rest of compilation + dyn_flags <- readIORef v_DynFlags + phases <- genPipeline mode stop_flag True (hscLang dyn_flags) pp + r <- pipeLoop phases pp (mode==DoLink || mode==DoMkDLL) True{-use -o flag-} + basename suffix return r - o_files <- mapM compileFile src_pipelines + o_files <- mapM compileFile srcs when (mode == DoMkDependHS) endMkDependHS when (mode == DoLink) (doLink o_files) - + when (mode == DoMkDLL) (doMkDLL o_files) + } -- grab the last -B option on the command line, and -- set topDir to its value. setTopDir :: [String] -> IO [String] setTopDir args = do let (minusbs, others) = partition (prefixMatch "-B") args (case minusbs of - [] -> writeIORef v_TopDir clibdir + [] -> throwDyn (InstallationError ("missing -B option")) some -> writeIORef v_TopDir (drop 2 (last some))) return others -beginMake = panic "`ghc --make' unimplemented" - ------------------------------------------------------------------------------ --- compatibility code - -#if __GLASGOW_HASKELL__ <= 408 -catchJust = catchIO -ioErrors = justIoErrors -throwTo = raiseInThread -#endif - -#ifdef mingw32_TARGET_OS -foreign import "_getpid" getProcessID :: IO Int +beginMake :: [String] -> IO () +beginMake fileish_args + = do let (objs, mods) = partition objish_file fileish_args + mapM (add v_Ld_inputs) objs + + case mods of + [] -> throwDyn (UsageError "no input files") + [mod] -> do state <- cmInit Batch + cmLoadModule state mod + return () + _ -> throwDyn (UsageError "only one module allowed with --make") + + +beginInteractive :: [String] -> IO () +#ifndef GHCI +beginInteractive = throwDyn (CmdLineError "not built for interactive use") +#else +beginInteractive fileish_args + = do minus_ls <- readIORef v_Cmdline_libraries + + let (objs, mods) = partition objish_file fileish_args + libs = map Left objs ++ map Right minus_ls + + state <- cmInit Interactive + case mods of + [] -> interactiveUI state Nothing libs + [mod] -> interactiveUI state (Just mod) libs + _ -> throwDyn (UsageError + "only one module allowed with --interactive") #endif