X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FMain.hs;h=0d9bdce047f2be7dce1265e05233e99a76281ec6;hb=7f4807640530a0e4d9d7efdeb6becee514274f02;hp=cc7e80f08e68d1c7eb243e8fcbdfbb452f2e19b4;hpb=0171936c9092666692c69a7f93fa75af976330cb;p=ghc-hetmet.git diff --git a/ghc/compiler/main/Main.hs b/ghc/compiler/main/Main.hs index cc7e80f..0d9bdce 100644 --- a/ghc/compiler/main/Main.hs +++ b/ghc/compiler/main/Main.hs @@ -1,7 +1,7 @@ {-# OPTIONS -fno-warn-incomplete-patterns -optc-DNON_POSIX_SOURCE #-} ----------------------------------------------------------------------------- --- $Id: Main.hs,v 1.96 2002/03/04 17:01:30 simonmar Exp $ +-- $Id: Main.hs,v 1.120 2003/05/19 15:39:18 simonpj Exp $ -- -- GHC Driver program -- @@ -18,65 +18,57 @@ module Main (main) where #ifdef GHCI -import InteractiveUI(ghciWelcomeMsg, interactiveUI) +import InteractiveUI( ghciWelcomeMsg, interactiveUI ) #endif -import Finder ( initFinder ) import CompManager ( cmInit, cmLoadModules, cmDepAnal ) import HscTypes ( GhciMode(..) ) import Config ( cBooterVersion, cGhcUnregisterised, cProjectVersion ) import SysTools ( getPackageConfigPath, initSysTools, cleanTempFiles ) -import Packages ( showPackages ) - -import DriverPipeline ( doLink, doMkDLL, genPipeline, pipeLoop ) -import DriverState ( buildCoreToDo, buildStgToDo, defaultHscLang, - findBuildTag, getPackageInfo, unregFlags, +import Packages ( showPackages, getPackageConfigMap, basePackage, + haskell98Package + ) +import DriverPipeline ( staticLink, doMkDLL, genPipeline, pipeLoop ) +import DriverState ( buildCoreToDo, buildStgToDo, + findBuildTag, + getPackageExtraGhcOpts, unregFlags, v_GhcMode, v_GhcModeFlag, GhcMode(..), - v_Cmdline_libraries, v_Keep_tmp_files, v_Ld_inputs, + v_Keep_tmp_files, v_Ld_inputs, v_Ways, v_OptLevel, v_Output_file, v_Output_hi, - v_Package_details, v_Ways, getPackageExtraGhcOpts, - readPackageConf + readPackageConf, verifyOutputFiles, v_NoLink, + v_Build_tag ) import DriverFlags ( buildStaticHscOpts, dynamic_flags, processArgs, static_flags) import DriverMkDepend ( beginMkDependHS, endMkDependHS ) -import DriverPhases ( Phase(HsPp, Hsc), haskellish_src_file, objish_file ) +import DriverPhases ( Phase(HsPp, Hsc), haskellish_src_file, objish_file, isSourceFile ) import DriverUtil ( add, handle, handleDyn, later, splitFilename, - unknownFlagErr, getFileSuffix ) + unknownFlagsErr, getFileSuffix ) import CmdLineOpts ( dynFlag, restoreDynFlags, saveDynFlags, setDynFlags, getDynFlags, dynFlag, - DynFlags(..), HscLang(..), v_Static_hsc_opts + DynFlags(..), HscLang(..), v_Static_hsc_opts, + defaultHscLang ) +import BasicTypes ( failed ) import Outputable import Util -import Panic ( GhcException(..), panic ) +import Panic ( GhcException(..), panic, installSignalHandlers ) + +import DATA_IOREF ( readIORef, writeIORef ) +import EXCEPTION ( throwDyn, Exception(..), + AsyncException(StackOverflow) ) -- Standard Haskell libraries import IO import Directory ( doesFileExist ) -import IOExts ( readIORef, writeIORef ) -import Exception ( throwDyn, Exception(..) ) import System ( getArgs, exitWith, ExitCode(..) ) import Monad import List import Maybe -#ifndef mingw32_TARGET_OS -import Concurrent ( myThreadId ) -#if __GLASGOW_HASKELL__ < 500 -import Exception ( raiseInThread ) -#define throwTo raiseInThread -#else -import Exception ( throwTo ) -#endif - -import Posix ( Handler(Catch), installHandler, sigINT, sigQUIT ) -import Dynamic ( toDyn ) -#endif - ----------------------------------------------------------------------------- -- ToDo: @@ -134,14 +126,7 @@ main = -- so there shouldn't be any difficulty if we receive further -- signals. - -- install signal handlers -#ifndef mingw32_TARGET_OS - main_thread <- myThreadId - let sig_handler = Catch (throwTo main_thread - (DynException (toDyn Interrupted))) - installHandler sigQUIT sig_handler Nothing - installHandler sigINT sig_handler Nothing -#endif + installSignalHandlers argv <- getArgs let (minusB_args, argv') = partition (prefixMatch "-B") argv @@ -151,10 +136,9 @@ main = conf_file <- getPackageConfigPath readPackageConf conf_file - -- process all the other arguments, and get the source files + -- Process all the other arguments, and get the source files non_static <- processArgs static_flags argv' [] mode <- readIORef v_GhcMode - stop_flag <- readIORef v_GhcModeFlag -- -O and --interactive are not a good combination -- ditto with any kind of way selection @@ -163,7 +147,7 @@ main = 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) $ + when (notNull orig_ways && mode == DoInteractive) $ do throwDyn (UsageError "--interactive can't be used with -prof, -ticky, -unreg or -smp.") @@ -191,9 +175,13 @@ 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. dyn_flags <- getDynFlags + build_tag <- readIORef v_Build_tag let lang = case mode of DoInteractive -> HscInterpreted - _other -> hscLang dyn_flags + _other | build_tag /= "" -> HscC + | otherwise -> hscLang dyn_flags + -- for ways other that the normal way, we must + -- compile via C. setDynFlags (dyn_flags{ coreToDo = core_todo, stgToDo = stg_todo, @@ -203,15 +191,132 @@ main = verbosity = 1 }) - -- the rest of the arguments are "dynamic" - srcs <- processArgs dynamic_flags (extra_non_static ++ non_static) [] + -- The rest of the arguments are "dynamic" + -- Leftover ones are presumably files + fileish_args <- processArgs dynamic_flags (extra_non_static ++ non_static) [] + + -- We split out the object files (.o, .dll) and add them + -- to v_Ld_inputs for use by the linker + let (objs, srcs) = partition objish_file fileish_args + mapM_ (add v_Ld_inputs) objs + + ---------------- Display banners and configuration ----------- + showBanners mode conf_file static_opts + + ---------------- Final sanity checking ----------- + checkOptions mode srcs objs + + ---------------- Do the business ----------- + case mode of + DoMake -> doMake srcs + DoMkDependHS -> do { beginMkDependHS ; + compileFiles mode srcs; + endMkDependHS } + StopBefore p -> do { compileFiles mode srcs; return () } + DoMkDLL -> do { o_files <- compileFiles mode srcs; + doMkDLL o_files } + DoLink -> do { o_files <- compileFiles mode srcs; + omit_linking <- readIORef v_NoLink; + when (not omit_linking) + (staticLink o_files [basePackage, haskell98Package]) } + -- We always link in the base package in one-shot linking. + -- Any other packages required must be given using -package + -- options on the command-line. +#ifndef GHCI + DoInteractive -> throwDyn (CmdLineError "not built for interactive use") +#else + DoInteractive -> interactiveUI srcs +#endif - -- save the "initial DynFlags" away - saveDynFlags +-------------------------------------------------------------------------------------- +checkOptions :: GhcMode -> [String] -> [String] -> IO () + -- Final sanity checking before kicking of a compilation (pipeline). +checkOptions mode srcs objs = do + -- -ohi sanity check + ohi <- readIORef v_Output_hi + if (isJust ohi && + (mode == DoMake || mode == DoInteractive || srcs `lengthExceeds` 1)) + then throwDyn (UsageError "-ohi can only be used when compiling a single source file") + else do + + -- -o sanity checking + o_file <- readIORef v_Output_file + if (srcs `lengthExceeds` 1 && isJust o_file && mode /= DoLink && mode /= DoMkDLL) + then throwDyn (UsageError "can't apply -o to multiple source files") + else do - -- complain about any unknown flags - mapM unknownFlagErr [ f | f@('-':_) <- srcs ] + -- Check that there are some input files (except in the interactive case) + if null srcs && null objs && mode /= DoInteractive + then throwDyn (UsageError "no input files") + else do + -- Complain about any unknown flags + let unknown_opts = [ f | f@('-':_) <- srcs ] + when (notNull unknown_opts) (unknownFlagsErr unknown_opts) + + -- Verify that output files point somewhere sensible. + verifyOutputFiles + + +-------------------------------------------------------------------------------------- +compileFiles :: GhcMode + -> [String] -- Source files + -> IO [String] -- Object files +compileFiles mode srcs = do + stop_flag <- readIORef v_GhcModeFlag + + -- Do the business; save the DynFlags at the + -- start, so we can restore them before each file + saveDynFlags + mapM (compileFile mode stop_flag) srcs + + +compileFile mode stop_flag 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) + let src_and_suff = (src, getFileSuffix src) + let not_hs_file = not (haskellish_src_file src) + pp <- if not_hs_file || mode == StopBefore Hsc || mode == StopBefore HsPp + then return src_and_suff else do + phases <- genPipeline (StopBefore Hsc) stop_flag + False{-not persistent-} defaultHscLang + src_and_suff + pipeLoop phases src_and_suff 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 + + +-------------------------------------------------------------------------------------- +doMake :: [String] -> IO () +doMake [] = throwDyn (UsageError "no input files") +doMake srcs = do + dflags <- getDynFlags + state <- cmInit Batch + graph <- cmDepAnal state dflags srcs + (_, ok_flag, _) <- cmLoadModules state dflags graph + when (failed ok_flag) (exitWith (ExitFailure 1)) + return () + + + +-------------------------------------------------------------------------------------- +showBanners :: GhcMode -> FilePath -> [String] -> IO () +showBanners mode conf_file static_opts = do verb <- dynFlag verbosity -- Show the GHCi banner @@ -230,100 +335,8 @@ main = when (verb >= 2) (hPutStrLn stderr ("Using package config file: " ++ conf_file)) - pkg_details <- readIORef v_Package_details + pkg_details <- getPackageConfigMap showPackages pkg_details when (verb >= 3) (hPutStrLn stderr ("Hsc static flags: " ++ unwords static_opts)) - - -- initialise the finder - pkg_avails <- getPackageInfo - initFinder pkg_avails - - -- mkdependHS is special - when (mode == DoMkDependHS) beginMkDependHS - - -- -ohi sanity checking - ohi <- readIORef v_Output_hi - if (isJust ohi && - (mode == DoMake || mode == DoInteractive || srcs `lengthExceeds` 1)) - then throwDyn (UsageError "-ohi can only be used when compiling a single source file") - else do - - -- make/interactive require invoking the compilation manager - if (mode == DoMake) then beginMake srcs else do - if (mode == DoInteractive) then beginInteractive srcs else do - - -- -o sanity checking - o_file <- readIORef v_Output_file - if (srcs `lengthExceeds` 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 = 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) - let src_and_suff = (src, getFileSuffix src) - let not_hs_file = not (haskellish_src_file src) - pp <- if not_hs_file || mode == StopBefore Hsc || mode == StopBefore HsPp - then return src_and_suff else do - phases <- genPipeline (StopBefore Hsc) stop_flag - False{-not persistent-} defaultHscLang - src_and_suff - pipeLoop phases src_and_suff 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 srcs - - when (mode == DoMkDependHS) endMkDependHS - when (mode == DoLink) (doLink o_files) - when (mode == DoMkDLL) (doMkDLL o_files) - - - -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") - _ -> do dflags <- getDynFlags - state <- cmInit Batch - graph <- cmDepAnal state dflags mods - (_, ok, _) <- cmLoadModules state dflags graph - when (not ok) (exitWith (ExitFailure 1)) - return () - - -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 - interactiveUI state mods libs -#endif