{-# OPTIONS -fno-warn-incomplete-patterns -optc-DNON_POSIX_SOURCE #-}
-----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.97 2002/03/05 11:22:44 simonmar Exp $
+-- $Id: Main.hs,v 1.119 2003/02/17 12:24:27 simonmar Exp $
--
-- GHC Driver program
--
#ifdef GHCI
-import InteractiveUI(ghciWelcomeMsg, interactiveUI)
+import InteractiveUI
+import DriverPhases( objish_file )
#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, 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(..),
- AsyncException(StackOverflow) )
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:
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<size> \
+ \to increase it"
+ _other -> hPutStr stderr (show (Panic (show exception)))
exitWith (ExitFailure 1)
) $ do
-- 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
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.")
-- 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,
-- 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
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
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
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")
- _ -> do dflags <- getDynFlags
- state <- cmInit Batch
- graph <- cmDepAnal state dflags mods
- (_, ok, _) <- cmLoadModules state dflags graph
- 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
+ {-
+ 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 = haskellish_src_file m
+ || looksLikeModuleName m
+ || '.' `notElem` m
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).
+
projects / ghc-hetmet.git / blobdiff