X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FMain.hs;h=bfd2087681ce56b38ccf5fe5c5e9b2ae98648d32;hb=12e6a9a58473f8b24e831c2171bf62d256da8a85;hp=6f7be2f68d9b37cc9753d8b0ef3aced4fc1b6ac1;hpb=83eef621e4a4fbb6c1343304ec638cafd6c9dc09;p=ghc-hetmet.git diff --git a/ghc/compiler/main/Main.hs b/ghc/compiler/main/Main.hs index 6f7be2f..bfd2087 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 1.34 2000/11/24 17:02:02 simonpj Exp $ +-- $Id: Main.hs,v 1.57 2001/02/28 11:44:39 simonpj Exp $ -- -- GHC Driver program -- @@ -17,8 +17,8 @@ module Main (main) where #ifdef GHCI -import Interpreter import InteractiveUI +import Char ( toLower ) #endif #ifndef mingw32_TARGET_OS @@ -33,8 +33,8 @@ import DriverFlags import DriverMkDepend import DriverUtil import Panic -import DriverPhases ( Phase(..) ) -import CmdLineOpts ( HscLang(..), DynFlags(..), v_Static_hsc_opts ) +import DriverPhases ( Phase(..), haskellish_file, objish_file ) +import CmdLineOpts import TmpFiles import Finder ( initFinder ) import CmStaticInfo @@ -42,7 +42,6 @@ import Config import Util - import Concurrent import Directory import IOExts @@ -68,15 +67,12 @@ import Maybe -- 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: @@ -84,26 +80,30 @@ 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 <- dynFlag verbosity - cleanTempFiles (verb >= 2) + cleanTempFiles verb ) $ do -- exceptions will be blocked while we clean the temporary files, -- so there shouldn't be any difficulty if we receive further @@ -163,28 +163,40 @@ main = (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 (OtherError + "--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 @@ -193,6 +205,8 @@ 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 @@ -200,22 +214,20 @@ main = | 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", - - verbosity = case mode of - DoInteractive -> 1 - DoMake -> 1 - _other -> 0, - - 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 (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 @@ -223,12 +235,6 @@ main = -- 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 when (verb >= 2) @@ -240,6 +246,9 @@ main = when (verb >= 2) (hPutStrLn stderr ("Using package config file: " ++ conf_file)) + when (verb >= 3) + (hPutStrLn stderr ("Hsc static flags: " ++ unwords static_opts)) + -- initialise the finder pkg_avails <- getPackageInfo initFinder pkg_avails @@ -251,30 +260,43 @@ main = if (mode == DoMake) then beginMake srcs else do if (mode == DoInteractive) then beginInteractive 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 - -- sanity checking o_file <- readIORef v_Output_file ohi <- readIORef v_Output_hi - if length srcs > 1 && (isJust ohi || (isJust o_file && mode /= DoLink)) + 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 - let compileFile (src, phases) = do - writeIORef v_Driver_state saved_driver_state + let compileFile src = do 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 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. @@ -287,8 +309,11 @@ setTopDir args = do return others beginMake :: [String] -> IO () -beginMake mods - = do case mods of +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 @@ -298,15 +323,18 @@ beginMake mods beginInteractive :: [String] -> IO () #ifndef GHCI -beginInteractive = throwDyn (OtherError "not build for interactive use") +beginInteractive = throwDyn (OtherError "not built for interactive use") #else -beginInteractive mods - = do state <- cmInit Interactive - (state', ok, ms) - <- case mods of - [] -> return (state, True, []) - [mod] -> cmLoadModule state mod - _ -> throwDyn (UsageError - "only one module allowed with --interactive") - interactiveUI state' ms +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