{-# 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 1.144 2005/01/28 12:55:38 simonmar Exp $
--
-- GHC Driver program
--
--
-----------------------------------------------------------------------------
--- with path so that ghc -M can find config.h
-#include "../includes/config.h"
-
module Main (main) where
#include "HsVersions.h"
-
#ifdef GHCI
import InteractiveUI( ghciWelcomeMsg, interactiveUI )
#endif
import CompManager ( cmInit, cmLoadModules, cmDepAnal )
import HscTypes ( GhciMode(..) )
import Config ( cBooterVersion, cGhcUnregisterised, cProjectVersion )
-import SysTools ( getPackageConfigPath, initSysTools, cleanTempFiles )
-import Packages ( showPackages, getPackageConfigMap, basePackage,
- haskell98Package
- )
-import DriverPipeline ( staticLink, doMkDLL, genPipeline, pipeLoop )
-import DriverState ( buildCoreToDo, buildStgToDo,
- findBuildTag,
- getPackageExtraGhcOpts, unregFlags,
+import SysTools ( initSysTools, cleanTempFiles, normalisePath )
+import Packages ( dumpPackages, initPackages, haskell98PackageId, PackageIdH(..) )
+import DriverPipeline ( staticLink, doMkDLL, compileFile )
+import DriverState ( isLinkMode, isMakeMode, isInteractiveMode,
+ isCompManagerMode, isInterpretiveMode,
+ buildStgToDo, findBuildTag, unregFlags,
v_GhcMode, v_GhcModeFlag, GhcMode(..),
v_Keep_tmp_files, v_Ld_inputs, v_Ways,
- v_OptLevel, v_Output_file, v_Output_hi,
- 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, isSourceFile )
-
-import DriverUtil ( add, handle, handleDyn, later, splitFilename,
- unknownFlagsErr, getFileSuffix )
-import CmdLineOpts ( dynFlag, restoreDynFlags,
- saveDynFlags, setDynFlags, getDynFlags, dynFlag,
- DynFlags(..), HscLang(..), v_Static_hsc_opts,
- defaultHscLang
+ v_Output_file, v_Output_hi,
+ verifyOutputFiles, v_NoLink
)
+import DriverFlags
+
+import DriverMkDepend ( doMkDependHS )
+import DriverPhases ( isSourceFilename )
+
+import DriverUtil ( add, handle, handleDyn, later, unknownFlagsErr )
+import CmdLineOpts ( DynFlags(..), HscTarget(..), v_Static_hsc_opts,
+ defaultDynFlags )
import BasicTypes ( failed )
import Outputable
import Util
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<size> \
- \to increase it"
+ hPutStrLn stderr "stack overflow: use +RTS -K<size> to increase it"
_other -> hPutStr stderr (show (Panic (show exception)))
exitWith (ExitFailure 1)
) $ do
exitWith (ExitFailure 1)
) $ 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
- ) $ do
- -- exceptions will be blocked while we clean the temporary files,
- -- so there shouldn't be any difficulty if we receive further
- -- signals.
-
installSignalHandlers
argv <- getArgs
let (minusB_args, argv') = partition (prefixMatch "-B") argv
top_dir <- initSysTools minusB_args
- -- Read the package configuration
- conf_file <- getPackageConfigPath
- readPackageConf conf_file
-
-- Process all the other arguments, and get the source files
- non_static <- processArgs static_flags argv' []
+ non_static <- processStaticFlags argv'
mode <- readIORef v_GhcMode
-- -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 (notNull orig_ways && mode == DoInteractive) $
+ when (notNull orig_ways && isInterpretiveMode mode) $
do throwDyn (UsageError
"--interactive can't be used with -prof, -ticky, -unreg or -smp.")
way_opts <- findBuildTag
let unreg_opts | cGhcUnregisterised == "YES" = unregFlags
| otherwise = []
- pkg_extra_opts <- getPackageExtraGhcOpts
- extra_non_static <- processArgs static_flags
- (unreg_opts ++ way_opts ++ pkg_extra_opts) []
+ extra_non_static <- processStaticFlags (unreg_opts ++ way_opts)
- -- give the static flags to hsc
+ -- Give the static flags to hsc
static_opts <- buildStaticHscOpts
writeIORef v_Static_hsc_opts static_opts
-- 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
- -- set the "global" HscLang. The HscLang can be further adjusted on a module
+ -- set the "global" HscTarget. The HscTarget 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.
- dyn_flags <- getDynFlags
- build_tag <- readIORef v_Build_tag
+ -- HscTarget is not HscC or HscAsm, -fvia-C and -fasm have no effect.
+ let dflags0 = defaultDynFlags
let lang = case mode of
DoInteractive -> HscInterpreted
- _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
- })
+ DoEval _ -> HscInterpreted
+ _other -> hscTarget dflags0
+
+ let dflags1 = dflags0{ stgToDo = stg_todo,
+ hscTarget = lang,
+ -- leave out hscOutName for now
+ hscOutName = panic "Main.main:hscOutName not set",
+ verbosity = case mode of
+ DoEval _ -> 0
+ _other -> 1
+ }
-- The rest of the arguments are "dynamic"
-- Leftover ones are presumably files
- fileish_args <- processArgs dynamic_flags (extra_non_static ++ non_static) []
+ (dflags2, fileish_args) <- processDynamicFlags
+ (extra_non_static ++ non_static) dflags1
+
+ -- make sure we clean up after ourselves
+ later (do forget_it <- readIORef v_Keep_tmp_files
+ unless forget_it $ do
+ cleanTempFiles dflags2
+ ) $ do
+ -- exceptions will be blocked while we clean the temporary files,
+ -- so there shouldn't be any difficulty if we receive further
+ -- signals.
+
+ -- Read the package config(s), and process the package-related
+ -- command-line flags
+ dflags <- initPackages dflags2
+
+ let
+ {-
+ We split out the object files (.o, .dll) and add them
+ to v_Ld_inputs for use by the linker.
- -- 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
+ 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 = isSourceFilename 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
+
+ -- Note: have v_Ld_inputs maintain the order in which 'objs' occurred on
+ -- the command-line.
+ mapM_ (add v_Ld_inputs) (reverse objs)
---------------- Display banners and configuration -----------
- showBanners mode conf_file static_opts
+ showBanners mode dflags static_opts
---------------- Final sanity checking -----------
checkOptions mode srcs objs
---------------- Do the business -----------
+
+ -- Always link in the haskell98 package for static linking. Other
+ -- packages have to be specified via the -package flag.
+ let link_pkgs
+ | ExtPackage h98_id <- haskell98PackageId (pkgState dflags) = [h98_id]
+ | otherwise = []
+
case mode of
- DoMake -> do { saveDynFlags ;
- 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;
+ DoMake -> doMake dflags srcs
+ DoMkDependHS -> doMkDependHS dflags srcs
+ StopBefore p -> do { compileFiles mode dflags srcs; return () }
+ DoMkDLL -> do { o_files <- compileFiles mode dflags srcs;
+ doMkDLL dflags o_files link_pkgs }
+ DoLink -> do { o_files <- compileFiles mode dflags 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 dflags o_files link_pkgs) }
+
#ifndef GHCI
- DoInteractive -> throwDyn (CmdLineError "not built for interactive use")
+ DoInteractive -> noInteractiveError
+ DoEval _ -> noInteractiveError
+ where
+ noInteractiveError = throwDyn (CmdLineError "not built for interactive use")
#else
- DoInteractive -> interactiveUI srcs
+ DoInteractive -> interactiveUI dflags srcs Nothing
+ DoEval expr -> interactiveUI dflags srcs (Just expr)
#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 &&
- (mode == DoMake || mode == DoInteractive || srcs `lengthExceeds` 1))
+ (isCompManagerMode mode || 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)
+ if (srcs `lengthExceeds` 1 && isJust o_file && not (isLinkMode mode))
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)
- if null srcs && null objs && mode /= DoInteractive
+ -- Check that there are some input files
+ -- (except in the interactive case)
+ if null srcs && null objs && not (isInterpretiveMode mode)
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
+compileFiles :: GhcMode
+ -> DynFlags
-> [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
+compileFiles mode dflags srcs = mapM (compileFile mode dflags) srcs
+
+
+-- ----------------------------------------------------------------------------
+-- Run --make mode
+
+doMake :: DynFlags -> [String] -> IO ()
+doMake dflags [] = throwDyn (UsageError "no input files")
+doMake dflags srcs = do
+ state <- cmInit Batch dflags
+ graph <- cmDepAnal state srcs
+ (_, ok_flag, _) <- cmLoadModules state graph
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
+showBanners :: GhcMode -> DynFlags -> [String] -> IO ()
+showBanners mode dflags static_opts = do
+ let verb = verbosity dflags
-- Show the GHCi banner
# ifdef GHCI
- when (mode == DoInteractive && verb >= 1) $
+ when (isInteractiveMode mode && verb >= 1) $
hPutStrLn stdout ghciWelcomeMsg
# endif
-- Display details of the configuration in verbose mode
- 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 >= 2)
- (hPutStrLn stderr ("Using package config file: " ++ conf_file))
+ 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
- pkg_details <- getPackageConfigMap
- showPackages pkg_details
+ when (verb >= 3) $
+ dumpPackages dflags
- when (verb >= 3)
- (hPutStrLn stderr ("Hsc static flags: " ++ unwords static_opts))
+ when (verb >= 3) $
+ hPutStrLn stderr ("Hsc static flags: " ++ unwords static_opts)
projects / ghc-hetmet.git / blobdiff