X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FMain.hs;h=7da0074e2c7536b24455c740cb388426620ef6ad;hb=3a223cd2811d46295048b3a2dab11403ca291b20;hp=ac92fd6e5725a06b2248e51f75bb33fb11da05a8;hpb=a77e522a45f95126d89716b447232bedc9fbfb28;p=ghc-hetmet.git diff --git a/ghc/compiler/main/Main.hs b/ghc/compiler/main/Main.hs index ac92fd6..7da0074 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 1.121 2003/05/21 02:48:56 igloo Exp $ +-- $Id: Main.hs,v 1.131 2003/07/21 15:14:18 ross Exp $ -- -- GHC Driver program -- @@ -25,11 +25,12 @@ import InteractiveUI( ghciWelcomeMsg, interactiveUI ) import CompManager ( cmInit, cmLoadModules, cmDepAnal ) import HscTypes ( GhciMode(..) ) import Config ( cBooterVersion, cGhcUnregisterised, cProjectVersion ) -import SysTools ( getPackageConfigPath, initSysTools, cleanTempFiles ) +import SysTools ( getPackageConfigPath, initSysTools, cleanTempFiles, + normalisePath ) import Packages ( showPackages, getPackageConfigMap, basePackage, haskell98Package ) -import DriverPipeline ( staticLink, doMkDLL, genPipeline, pipeLoop ) +import DriverPipeline ( staticLink, doMkDLL, runPipeline ) import DriverState ( buildCoreToDo, buildStgToDo, findBuildTag, getPackageExtraGhcOpts, unregFlags, @@ -43,14 +44,12 @@ import DriverFlags ( buildStaticHscOpts, dynamic_flags, processArgs, static_flags) import DriverMkDepend ( beginMkDependHS, endMkDependHS ) -import DriverPhases ( Phase(HsPp, Hsc), haskellish_src_file, objish_file, isSourceFile ) +import DriverPhases ( isSourceFile ) -import DriverUtil ( add, handle, handleDyn, later, splitFilename, - unknownFlagsErr, getFileSuffix ) +import DriverUtil ( add, handle, handleDyn, later, unknownFlagsErr ) import CmdLineOpts ( dynFlag, restoreDynFlags, saveDynFlags, setDynFlags, getDynFlags, dynFlag, - DynFlags(..), HscLang(..), v_Static_hsc_opts, - defaultHscLang + DynFlags(..), HscLang(..), v_Static_hsc_opts ) import BasicTypes ( failed ) import Outputable @@ -98,7 +97,7 @@ main = hFlush stdout case exception of -- an IO exception probably isn't our fault, so don't panic - IOException _ -> hPutStr stderr (show exception) + IOException _ -> hPutStrLn stderr (show exception) AsyncException StackOverflow -> hPutStrLn stderr "stack overflow: use +RTS -K \ \to increase it" @@ -161,7 +160,7 @@ main = extra_non_static <- processArgs static_flags (unreg_opts ++ way_opts ++ pkg_extra_opts) [] - -- give the static flags to hsc + -- Give the static flags to hsc static_opts <- buildStaticHscOpts writeIORef v_Static_hsc_opts static_opts @@ -195,9 +194,37 @@ main = -- 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 + -- save the "initial DynFlags" away + saveDynFlags + + let + {- + We split out the object files (.o, .dll) and add them + to v_Ld_inputs for use by the linker. + + The following things should be considered compilation manager inputs: + + - haskell source files (strings ending in .hs, .lhs or other + haskellish extension), + + - module names (not forgetting hierarchical module names), + + - and finally we consider everything not containing a '.' to be + a comp manager input, as shorthand for a .hs or .lhs filename. + + Everything else is considered to be a linker object, and passed + straight through to the linker. + -} + looks_like_an_input m = isSourceFile m + || looksLikeModuleName m + || '.' `notElem` m + + -- To simplify the handling of filepaths, we normalise all filepaths right + -- away - e.g., for win32 platforms, backslashes are converted + -- into forward slashes. + normal_fileish_paths = map normalisePath fileish_args + (srcs, objs) = partition looks_like_an_input normal_fileish_paths + mapM_ (add v_Ld_inputs) objs ---------------- Display banners and configuration ----------- @@ -206,33 +233,43 @@ main = ---------------- Final sanity checking ----------- checkOptions mode srcs objs + -- 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. + let def_hs_pkgs = [basePackage, haskell98Package] + ---------------- Do the business ----------- case mode of - DoMake -> do { saveDynFlags ; - doMake srcs } + 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 } + doMkDLL o_files def_hs_pkgs } 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. + (staticLink o_files def_hs_pkgs) } + #ifndef GHCI DoInteractive -> throwDyn (CmdLineError "not built for interactive use") #else DoInteractive -> interactiveUI srcs #endif --------------------------------------------------------------------------------------- +-- ----------------------------------------------------------------------------- +-- Option sanity checks + checkOptions :: GhcMode -> [String] -> [String] -> IO () - -- Final sanity checking before kicking of a compilation (pipeline). + -- Final sanity checking before kicking off a compilation (pipeline). checkOptions mode srcs objs = do + -- Complain about any unknown flags + let unknown_opts = [ f | f@('-':_) <- srcs ] + when (notNull unknown_opts) (unknownFlagsErr unknown_opts) + -- -ohi sanity check ohi <- readIORef v_Output_hi if (isJust ohi && @@ -246,29 +283,24 @@ checkOptions mode srcs objs = do then throwDyn (UsageError "can't apply -o to multiple source files") else do - -- Check that there are some input files (except in the interactive case) + -- 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 --------------------------------------------------------------------------------------- +-- ----------------------------------------------------------------------------- +-- Compile files in one-shot mode. + 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 @@ -279,30 +311,19 @@ compileFile mode stop_flag src = do 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_file <- readIORef v_Output_file + -- when linking, the -o argument refers to the linker's output. + -- otherwise, we use it as the name for the pipeline's output. + let maybe_o_file + | mode==DoLink || mode==DoMkDLL = Nothing + | otherwise = o_file + runPipeline mode stop_flag True maybe_o_file src Nothing{-no ModLocation-} + + +-- ---------------------------------------------------------------------------- +-- Run --make mode --------------------------------------------------------------------------------------- doMake :: [String] -> IO () doMake [] = throwDyn (UsageError "no input files") doMake srcs = do @@ -313,9 +334,9 @@ doMake srcs = do when (failed ok_flag) (exitWith (ExitFailure 1)) return () +-- --------------------------------------------------------------------------- +-- Various banners and verbosity output. - --------------------------------------------------------------------------------------- showBanners :: GhcMode -> FilePath -> [String] -> IO () showBanners mode conf_file static_opts = do verb <- dynFlag verbosity