X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;ds=sidebyside;f=ghc%2Fcompiler%2Fmain%2FMain.hs;h=5f5024abb421ab094387d20ca3f0e8d3c570e034;hb=f4a6a4134b8ba3f2fc7a193ed5b91313046b775a;hp=dbbb12fb515fc1b6815cf7c72f7b1733503b5c23;hpb=a37ef0a9233735fffa72a4ccccf6345198623a21;p=ghc-hetmet.git diff --git a/ghc/compiler/main/Main.hs b/ghc/compiler/main/Main.hs index dbbb12f..5f5024a 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 1.21 2000/11/14 16:28:38 simonmar Exp $ +-- $Id: Main.hs,v 1.43 2001/01/03 11:13:43 simonmar Exp $ -- -- GHC Driver program -- @@ -15,30 +15,38 @@ module Main (main) where #include "HsVersions.h" + +#ifdef GHCI +import Interpreter +import InteractiveUI +#endif + +#ifndef mingw32_TARGET_OS +import Dynamic +import Posix +#endif + import CompManager 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 Util -import Panic + + import Concurrent -#ifndef mingw32_TARGET_OS -import Posix -#endif import Directory import IOExts import Exception -import Dynamic import IO import Monad @@ -68,6 +76,7 @@ import Maybe -- reading the package configuration file is too slow -- -H, -K, -Rghc-timing -- hi-diffs +-- -ddump-all doesn't do anything ----------------------------------------------------------------------------- -- Differences vs. old driver: @@ -75,26 +84,30 @@ 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 - cleanTempFiles verb + verb <- dynFlag verbosity + cleanTempFiles (verb >= 2) ) $ do -- exceptions will be blocked while we clean the temporary files, -- so there shouldn't be any difficulty if we receive further @@ -109,9 +122,6 @@ 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 @@ -198,6 +208,13 @@ main = 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, + flags = [] } -- the rest of the arguments are "dynamic" @@ -210,30 +227,33 @@ main = -- complain about any unknown flags mapM unknownFlagErr [ f | f@('-':_) <- srcs ] - -- get the -v flag - verb <- readIORef v_Verbose + -- 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 - 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) + (do hPutStr stderr "Glasgow Haskell Compiler, Version " + hPutStr stderr cProjectVersion + hPutStr stderr ", for Haskell 98, compiled by GHC version " + hPutStrLn stderr cBooterVersion) - when verb (hPutStrLn stderr ("Using package config file: " ++ conf_file)) + when (verb >= 2) + (hPutStrLn stderr ("Using package config file: " ++ conf_file)) -- 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 - - -- 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 + if (mode == DoMake) then beginMake srcs else do + if (mode == DoInteractive) then beginInteractive srcs else do -- sanity checking o_file <- readIORef v_Output_file @@ -244,18 +264,30 @@ main = 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 + let compileFile src = do writeIORef v_Driver_state saved_driver_state writeIORef v_DynFlags init_dyn_flags - r <- runPipeline phases src (mode==DoLink) True + + -- 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 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) 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) @@ -270,35 +302,26 @@ setTopDir args = do some -> writeIORef v_TopDir (drop 2 (last some))) return others -beginMake :: PackageConfigInfo -> [String] -> IO () -beginMake pkg_details mods +beginMake :: [String] -> IO () +beginMake mods = do case mods of [] -> throwDyn (UsageError "no input files") - [mod] -> do state <- cmInit pkg_details - cmLoadModule state (mkModuleName mod) + [mod] -> do state <- cmInit Batch + cmLoadModule state mod return () _ -> throwDyn (UsageError "only one module allowed with --make") -beginInteractive pkg_details mods - = do case mods of - [] -> return () - [mod] -> do state <- cmInit pkg_details - cmLoadModule state (mkModuleName mod) - return () - _ -> throwDyn (UsageError - "only one module allowed with --interactive") - interactiveUI - -interactiveUI :: IO () -interactiveUI = do - hPutStr stdout ghciWelcomeMsg - throwDyn (OtherError "GHCi not implemented yet") - -ghciWelcomeMsg = "\ -\ _____ __ __ ____ ------------------------------------------------\n\ -\(| || || (| |) GHCi: GHC Interactive, version 5.00 \n\ -\|| __ ||___|| || () For Haskell 98. \n\ -\|| |) ||---|| || // http://www.haskell.org/ghc \n\ -\|| || || || || // Bug reports to: glasgow-haskell-bugs@haskell.org\n\ -\(|___|| || || (|__|) (| ________________________________________________\n" +beginInteractive :: [String] -> IO () +#ifndef GHCI +beginInteractive = throwDyn (OtherError "not build for interactive use") +#else +beginInteractive mods + = do state <- cmInit Interactive + let mod = case mods of + [] -> Nothing + [mod] -> Just mod + _ -> throwDyn (UsageError + "only one module allowed with --interactive") + interactiveUI state mod +#endif