X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FMain.hs;h=224a9cc0fcb0722b7ee55eabdb83b162896b56ec;hb=b5219fe27e7d67359c6a5a169603753ebb740353;hp=9c8827b26ecabd51ec1a4b2f984a78f696056a61;hpb=9e93335020e64a811dbbb223e1727c76933a93ae;p=ghc-hetmet.git diff --git a/ghc/compiler/main/Main.hs b/ghc/compiler/main/Main.hs index 9c8827b..224a9cc 100644 --- a/ghc/compiler/main/Main.hs +++ b/ghc/compiler/main/Main.hs @@ -1,11 +1,11 @@ {-# OPTIONS -fno-warn-incomplete-patterns -optc-DNON_POSIX_SOURCE #-} ----------------------------------------------------------------------------- --- $Id: Main.hs,v 1.89 2001/10/25 02:13:13 sof Exp $ +-- $Id: Main.hs,v 1.117 2002/12/19 09:37:32 simonmar Exp $ -- -- GHC Driver program -- --- (c) Simon Marlow 2000 +-- (c) The University of Glasgow 2002 -- ----------------------------------------------------------------------------- @@ -18,73 +18,75 @@ module Main (main) where #ifdef GHCI -import InteractiveUI(ghciWelcomeMsg, interactiveUI) +import InteractiveUI +import DriverPhases( objish_file ) #endif -import Finder ( initFinder ) -import CompManager ( cmInit, cmLoadModule ) +import CompManager ( cmInit, cmLoadModules, cmDepAnal ) import HscTypes ( GhciMode(..) ) import Config ( cBooterVersion, cGhcUnregisterised, cProjectVersion ) import SysTools ( getPackageConfigPath, initSysTools, cleanTempFiles ) -import Packages ( showPackages ) - -import DriverPipeline ( GhcMode(..), doLink, doMkDLL, genPipeline, - getGhcMode, pipeLoop, v_GhcMode +import Packages ( showPackages, getPackageConfigMap, basePackage, + haskell98Package ) -import DriverState ( buildCoreToDo, buildStgToDo, defaultHscLang, - findBuildTag, getPackageInfo, unregFlags, - v_Cmdline_libraries, v_Keep_tmp_files, v_Ld_inputs, +import DriverPipeline ( staticLink, doMkDLL, genPipeline, pipeLoop ) +import DriverState ( buildCoreToDo, buildStgToDo, + findBuildTag, + getPackageExtraGhcOpts, unregFlags, + v_GhcMode, v_GhcModeFlag, GhcMode(..), + 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 ( dynFlag, buildStaticHscOpts, dynamic_flags, - processArgs, static_flags) +import DriverFlags ( buildStaticHscOpts, + dynamic_flags, processArgs, static_flags) import DriverMkDepend ( beginMkDependHS, endMkDependHS ) -import DriverPhases ( Phase(Hsc, HCc), haskellish_src_file, objish_file ) +import DriverPhases ( Phase(HsPp, Hsc), haskellish_src_file, isSourceFile ) import DriverUtil ( add, handle, handleDyn, later, splitFilename, - unknownFlagErr, getFileSuffix ) -import CmdLineOpts ( dynFlag, defaultDynFlags, restoreDynFlags, - saveDynFlags, setDynFlags, - DynFlags(..), HscLang(..), v_Static_hsc_opts + unknownFlagsErr, getFileSuffix ) +import CmdLineOpts ( dynFlag, restoreDynFlags, + saveDynFlags, setDynFlags, getDynFlags, dynFlag, + DynFlags(..), HscLang(..), v_Static_hsc_opts, + defaultHscLang ) - +import BasicTypes ( failed ) import Outputable import Util import Panic ( GhcException(..), panic ) --- 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 +import DATA_IOREF ( readIORef, writeIORef ) +import EXCEPTION ( throwDyn, Exception(..), + AsyncException(StackOverflow) ) -#ifndef mingw32_TARGET_OS -import Concurrent ( myThreadId ) -#if __GLASGOW_HASKELL__ < 500 -import Exception ( raiseInThread ) +#ifndef mingw32_HOST_OS +import CONCURRENT ( myThreadId ) +# if __GLASGOW_HASKELL__ < 500 +import EXCEPTION ( raiseInThread ) #define throwTo raiseInThread -#else -import Exception ( throwTo ) -#endif +# else +import EXCEPTION ( throwTo ) +# endif +#if __GLASGOW_HASKELL__ > 504 +import System.Posix.Signals +#else import Posix ( Handler(Catch), installHandler, sigINT, sigQUIT ) -import Dynamic ( toDyn ) #endif +import DYNAMIC ( toDyn ) +#endif ------------------------------------------------------------------------------ --- Changes: - --- * -fglasgow-exts NO LONGER IMPLIES -package lang!!! (-fglasgow-exts is a --- dynamic flag whereas -package is a static flag.) +-- Standard Haskell libraries +import IO +import Directory ( doesFileExist ) +import System ( getArgs, exitWith, ExitCode(..) ) +import Monad +import List +import Maybe ----------------------------------------------------------------------------- -- ToDo: @@ -104,7 +106,6 @@ import Dynamic ( toDyn ) -- 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 -Ofile ----------------------------------------------------------------------------- @@ -113,19 +114,25 @@ import Dynamic ( toDyn ) main = -- top-level exception handler: any unrecognised exception is a compiler bug. handle (\exception -> do + hFlush stdout case exception of -- an IO exception probably isn't our fault, so don't panic IOException _ -> hPutStr stderr (show exception) - _other -> hPutStr stderr (show (Panic (show exception))) + AsyncException StackOverflow -> + hPutStrLn stderr "stack overflow: use +RTS -K \ + \to increase it" + _other -> 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 :: GhcException)) - exitWith (ExitFailure 1) + handleDyn (\dyn -> do + hFlush stdout + case dyn of + PhaseFailed _ code -> exitWith code + Interrupted -> exitWith (ExitFailure 1) + _ -> do hPutStrLn stderr (show (dyn :: GhcException)) + exitWith (ExitFailure 1) ) $ do -- make sure we clean up after ourselves @@ -139,7 +146,7 @@ main = -- signals. -- install signal handlers -#ifndef mingw32_TARGET_OS +#ifndef mingw32_HOST_OS main_thread <- myThreadId let sig_handler = Catch (throwTo main_thread (DynException (toDyn Interrupted))) @@ -155,12 +162,10 @@ main = conf_file <- getPackageConfigPath readPackageConf conf_file - -- find the phase to stop after (i.e. -E, -C, -c, -S flags) - (flags2, mode, stop_flag) <- getGhcMode argv' - writeIORef v_GhcMode mode - -- process all the other arguments, and get the source files - non_static <- processArgs static_flags flags2 [] + 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 @@ -169,7 +174,7 @@ 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.") @@ -196,23 +201,22 @@ main = -- 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 - - + dyn_flags <- getDynFlags + build_tag <- readIORef v_Build_tag let lang = case mode of - StopBefore HCc -> HscC DoInteractive -> HscInterpreted - _other | opt_level >= 1 -> HscC -- -O implies -fvia-C - | otherwise -> defaultHscLang - - setDynFlags (defaultDynFlags{ coreToDo = core_todo, - stgToDo = stg_todo, - hscLang = lang, - -- leave out hscOutName for now - hscOutName = panic "Main.main:hscOutName not set", - - verbosity = 1 - }) + _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, + hscLang = lang, + -- leave out hscOutName for now + hscOutName = panic "Main.main:hscOutName not set", + verbosity = 1 + }) -- the rest of the arguments are "dynamic" srcs <- processArgs dynamic_flags (extra_non_static ++ non_static) [] @@ -220,9 +224,9 @@ main = -- save the "initial DynFlags" away saveDynFlags - -- complain about any unknown flags - mapM unknownFlagErr [ f | f@('-':_) <- srcs ] - + -- perform some checks of the options set / report unknowns. + checkOptions srcs + verb <- dynFlag verbosity -- Show the GHCi banner @@ -241,16 +245,12 @@ 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 @@ -266,8 +266,9 @@ main = if (mode == DoInteractive) then beginInteractive srcs else do -- -o sanity checking + let real_srcs = filter isSourceFile srcs -- filters out .a and .o that might appear o_file <- readIORef v_Output_file - if (srcs `lengthExceeds` 1 && isJust o_file && mode /= DoLink && mode /= DoMkDLL) + if (real_srcs `lengthExceeds` 1 && isJust o_file && mode /= DoLink && mode /= DoMkDLL) then throwDyn (UsageError "can't apply -o to multiple source files") else do @@ -286,11 +287,12 @@ main = -- just preprocess (Haskell source only) let src_and_suff = (src, getFileSuffix src) - pp <- if not (haskellish_src_file src) || mode == StopBefore Hsc + 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 + False{-not persistent-} defaultHscLang + src_and_suff pipeLoop phases src_and_suff False{-no linking-} False{-no -o flag-} basename suffix @@ -304,22 +306,35 @@ main = o_files <- mapM compileFile srcs when (mode == DoMkDependHS) endMkDependHS - when (mode == DoLink) (doLink o_files) + + omit_linking <- readIORef v_NoLink + when (mode == DoLink && 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. + 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") - mod -> do state <- cmInit Batch - (_, ok, _) <- cmLoadModule state mods - when (not ok) (exitWith (ExitFailure 1)) - return () +beginMake fileish_args = do + -- anything that doesn't look like a Haskell source filename or + -- a module name is passed straight through to the linker + let (inputs, objects) = partition looks_like_an_input fileish_args + mapM_ (add v_Ld_inputs) objects + + case inputs of + [] -> throwDyn (UsageError "no input files") + _ -> do dflags <- getDynFlags + state <- cmInit Batch + graph <- cmDepAnal state dflags inputs + (_, ok_flag, _) <- cmLoadModules state dflags graph + when (failed ok_flag) (exitWith (ExitFailure 1)) + return () + where + looks_like_an_input m = haskellish_src_file m || '.' `notElem` m beginInteractive :: [String] -> IO () @@ -327,11 +342,20 @@ beginInteractive :: [String] -> IO () beginInteractive = throwDyn (CmdLineError "not built for interactive use") #else beginInteractive fileish_args - = do minus_ls <- readIORef v_Cmdline_libraries + = do state <- cmInit Interactive let (objs, mods) = partition objish_file fileish_args - libs = map Left objs ++ map Right minus_ls - state <- cmInit Interactive - interactiveUI state mods libs + interactiveUI state mods objs #endif + +checkOptions :: [String] -> IO () +checkOptions srcs = 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 + -- and anything else that it might be worth checking for + -- before kicking of a compilation (pipeline). +