X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FMain.hs;h=57f7d3d9cfef31477f42dc9659680c95551c22d4;hb=16d5d1c75c999677783c9c1bda519540fa9a6e58;hp=46aec68b04607dbbec3beee436bb9d3817121125;hpb=8dc03e6adb52b79e795483a53ba5a264f48b8a45;p=ghc-hetmet.git diff --git a/ghc/compiler/main/Main.hs b/ghc/compiler/main/Main.hs index 46aec68..57f7d3d 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 1.28 2000/11/20 16:37:42 sewardj Exp $ +-- $Id: Main.hs,v 1.70 2001/06/14 12:50:06 simonpj Exp $ -- -- GHC Driver program -- @@ -15,39 +15,59 @@ module Main (main) where #include "HsVersions.h" -import CompManager -import Interpreter + #ifdef GHCI -import InteractiveUI +import InteractiveUI(ghciWelcomeMsg, interactiveUI) #endif -import DriverPipeline -import DriverState -import DriverFlags -import DriverMkDepend -import DriverUtil -import Panic -import DriverPhases ( Phase(..) ) -import CmdLineOpts ( HscLang(..), DynFlags(..), v_Static_hsc_opts ) -import Module ( mkModuleName ) -import TmpFiles + + import Finder ( initFinder ) -import CmStaticInfo -import Config +import CompManager ( cmInit, cmLoadModule ) +import CmStaticInfo ( GhciMode(..), PackageConfig(..) ) +import Config ( cBooterVersion, cGhcUnregisterised, cProjectVersion ) +import SysTools ( packageConfigPath, initSysTools, cleanTempFiles ) +import ParsePkgConf ( parsePkgConf ) + +import DriverPipeline ( GhcMode(..), doLink, doMkDLL, genPipeline, + getGhcMode, pipeLoop, v_GhcMode + ) +import DriverState ( buildCoreToDo, buildStgToDo, defaultHscLang, + findBuildTag, getPackageInfo, unregFlags, v_Cmdline_libraries, + v_Keep_tmp_files, v_Ld_inputs, v_OptLevel, v_Output_file, + v_Output_hi, v_Package_details, v_Ways + ) +import DriverFlags ( dynFlag, buildStaticHscOpts, dynamic_flags, processArgs, static_flags) + +import DriverMkDepend ( beginMkDependHS, endMkDependHS ) +import DriverPhases ( Phase(Hsc, HCc), haskellish_src_file, objish_file ) + +import DriverUtil ( add, handle, handleDyn, later, splitFilename, unknownFlagErr, my_prefix_match ) +import CmdLineOpts ( dynFlag, + DynFlags(verbosity, stgToDo, hscOutName, hscLang, coreToDo), + HscLang(HscInterpreted, HscC), + defaultDynFlags, restoreDynFlags, saveDynFlags, setDynFlags, + v_Static_hsc_opts + ) + +import Outputable import Util +import Panic ( GhcException(..), panic ) + +-- Standard Haskell libraries +import IO +import Concurrent ( myThreadId, throwTo ) +import Directory ( doesFileExist ) +import IOExts ( readIORef, writeIORef ) +import Exception ( throwTo, throwDyn, Exception(DynException) ) +import System ( getArgs, exitWith, ExitCode(..) ) -import Concurrent #ifndef mingw32_TARGET_OS -import Posix +import Posix ( Handler(Catch), installHandler, sigINT, sigQUIT ) +import Dynamic ( toDyn ) #endif -import Directory -import IOExts -import Exception -import Dynamic -import IO import Monad import List -import System import Maybe @@ -60,19 +80,15 @@ 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 --- -ddump-all doesn't do anything +-- -K ----------------------------------------------------------------------------- -- Differences vs. old driver: @@ -80,25 +96,29 @@ 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, @@ -117,70 +137,57 @@ main = 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 - inplace s = top_dir ++ '/':cCURRENT_DIR ++ '/':s - - installed_pkgconfig = installed ("package.conf") - inplace_pkgconfig = inplace (cGHC_DRIVER_DIR ++ "/package.conf.inplace") - - -- discover whether we're running in a build tree or in an installation, - -- by looking for the package configuration file. - am_installed <- doesFileExist installed_pkgconfig - - if am_installed - then writeIORef v_Path_package_config installed_pkgconfig - 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") - - -- set the location of our various files - if am_installed - then do writeIORef v_Path_usage (installed "ghc-usage.txt") - writeIORef v_Pgm_L (installed "unlit") - writeIORef v_Pgm_m (installed "ghc-asm") - writeIORef v_Pgm_s (installed "ghc-split") - - else do writeIORef v_Path_usage (inplace (cGHC_DRIVER_DIR ++ "/ghc-usage.txt")) - writeIORef v_Pgm_L (inplace cGHC_UNLIT) - writeIORef v_Pgm_m (inplace cGHC_MANGLER) - writeIORef v_Pgm_s (inplace cGHC_SPLIT) + let (top_dir, argv') = getTopDir argv + + initSysTools top_dir -- read the package configuration - conf_file <- readIORef v_Path_package_config - contents <- readFile conf_file - let pkg_details = read contents -- ToDo: faster - writeIORef v_Package_details pkg_details + conf_file <- packageConfigPath + r <- parsePkgConf conf_file + case r of { + Left err -> throwDyn (InstallationError (showSDoc err)); + Right pkg_details -> do + + writeIORef v_Package_details (mungePackagePaths top_dir 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 + -- 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 - way_non_static <- 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 @@ -189,109 +196,160 @@ main = -- 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 - hscOutName = panic "Main.main:hscOutName not set", - flags = [] } + setDynFlags (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 (way_non_static ++ - non_static ++ warn_opts) [] + srcs <- processArgs dynamic_flags (way_non_static ++ non_static) [] + -- save the "initial DynFlags" away - init_dyn_flags <- readIORef v_DynFlags - writeIORef v_InitDynFlags init_dyn_flags + saveDynFlags -- complain about any unknown flags mapM unknownFlagErr [ f | f@('-':_) <- srcs ] - -- 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 - writeIORef v_InitDriverState saved_driver_state + verb <- dynFlag verbosity - -- get the -v flag - verb <- readIORef v_Verbose + 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) - when verb (do hPutStr stderr "Glasgow Haskell Compiler, Version " - hPutStr stderr cProjectVersion - hPutStr stderr ", for Haskell 98, compiled by GHC version " - hPutStrLn stderr cBooterVersion) + when (verb >= 2) + (hPutStrLn stderr ("Using package config file: " ++ conf_file)) - when verb (hPutStrLn stderr ("Using package config file: " ++ conf_file)) + when (verb >= 3) + (hPutStrLn stderr ("Hsc static flags: " ++ unwords static_opts)) -- initialise the finder - initFinder pkg_details + pkg_avails <- getPackageInfo + initFinder pkg_avails -- mkdependHS is special when (mode == DoMkDependHS) beginMkDependHS - -- make/interactive require invoking the compilation manager - if (mode == DoMake) then beginMake pkg_details srcs else do - if (mode == DoInteractive) then beginInteractive pkg_details srcs else do + -- -ohi sanity checking + ohi <- readIORef v_Output_hi + if (isJust ohi && + (mode == DoMake || mode == DoInteractive || length srcs > 1)) + then throwDyn (UsageError "-ohi can only be used when compiling a single source file") + else do - -- for each source file, find which phases to run - let lang = hscLang init_dyn_flags - pipelines <- mapM (genPipeline mode stop_flag True lang) 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 sanity checking o_file <- readIORef v_Output_file - ohi <- readIORef v_Output_hi - if length srcs > 1 && (isJust ohi || (isJust o_file && mode /= DoLink)) - then throwDyn (UsageError "can't apply -o or -ohi options to multiple source files") + if (length srcs > 1 && isJust o_file && mode /= DoLink && mode /= DoMkDLL) + then throwDyn (UsageError "can't apply -o to multiple source files") else do if null srcs then throwDyn (UsageError "no input files") else do - let compileFile (src, phases) = do - writeIORef v_Driver_state saved_driver_state - writeIORef v_DynFlags init_dyn_flags - r <- runPipeline phases src (mode==DoLink) True + let compileFile src = do + restoreDynFlags + + 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 (Haskell source only) + pp <- if not (haskellish_src_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 + hsc_lang <- dynFlag hscLang + phases <- genPipeline mode stop_flag True hsc_lang 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 - some -> writeIORef v_TopDir (drop 2 (last some))) - return others - -beginMake :: PackageConfigInfo -> [String] -> IO () -beginMake pkg_details mods - = do case mods of +getTopDir :: [String] -> (String, [String]) +getTopDir args + | null minusbs = throwDyn (InstallationError ("missing -B option")) + | otherwise = (drop 2 (last minusbs), others) + where + (minusbs, others) = partition (prefixMatch "-B") args + + +-- replace the string "$libdir" at the beginning of a path with the +-- current libdir (obtained from the -B option). +mungePackagePaths top_dir ps = map munge_pkg ps + where + munge_pkg p = p{ import_dirs = munge_paths (import_dirs p), + include_dirs = munge_paths (include_dirs p), + library_dirs = munge_paths (library_dirs p) } + + munge_paths = map munge_path + + munge_path p + | Just p' <- my_prefix_match "$libdir" p = top_dir ++ p' + | otherwise = trace ("not: " ++ p) p + + +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 pkg_details Batch + [mod] -> do state <- cmInit Batch cmLoadModule state mod return () _ -> throwDyn (UsageError "only one module allowed with --make") + +beginInteractive :: [String] -> IO () #ifndef GHCI -beginInteractive = throwDyn (OtherError "not build for interactive use") +beginInteractive = throwDyn (CmdLineError "not built for interactive use") #else -beginInteractive pkg_details mods - = do state <- cmInit pkg_details Interactive +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 - [] -> return () - [mod] -> do cmLoadModule state mod; return () - _ -> throwDyn (UsageError - "only one module allowed with --interactive") - interactiveUI state + [] -> interactiveUI state Nothing libs + [mod] -> interactiveUI state (Just mod) libs + _ -> throwDyn (UsageError + "only one module allowed with --interactive") #endif