-{-# OPTIONS -fno-warn-incomplete-patterns #-}
+{-# OPTIONS -fno-warn-incomplete-patterns -optc-DNON_POSIX_SOURCE #-}
+
-----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.86 2001/08/13 15:49:38 simonmar Exp $
+-- $Id: Main.hs,v 1.105 2002/05/01 09:30:05 simonmar Exp $
--
-- GHC Driver program
--
--- (c) Simon Marlow 2000
+-- (c) The University of Glasgow 2002
--
-----------------------------------------------------------------------------
#ifdef GHCI
-import InteractiveUI(ghciWelcomeMsg, interactiveUI)
+import InteractiveUI
#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 DriverState ( buildCoreToDo, buildStgToDo, defaultHscLang,
+import DriverPipeline ( doLink, doMkDLL, genPipeline, pipeLoop )
+import DriverState ( buildCoreToDo, buildStgToDo,
findBuildTag, getPackageInfo, unregFlags,
+ v_GhcMode, v_GhcModeFlag, GhcMode(..),
v_Cmdline_libraries, v_Keep_tmp_files, v_Ld_inputs,
v_OptLevel, v_Output_file, v_Output_hi,
v_Package_details, v_Ways, getPackageExtraGhcOpts,
- readPackageConf
+ readPackageConf, verifyOutputFiles
)
-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, objish_file )
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 Outputable
import Util
import Panic ( GhcException(..), panic )
import IO
import Directory ( doesFileExist )
import IOExts ( readIORef, writeIORef )
-import Exception ( throwDyn, Exception(..) )
+import Exception ( throwDyn, Exception(..),
+ AsyncException(StackOverflow) )
import System ( getArgs, exitWith, ExitCode(..) )
import Monad
import List
import Maybe
-#ifndef mingw32_TARGET_OS
+#ifndef mingw32_HOST_OS
import Concurrent ( myThreadId )
-#if __GLASGOW_HASKELL__ < 500
+# if __GLASGOW_HASKELL__ < 500
import Exception ( raiseInThread )
#define throwTo raiseInThread
-#else
+# else
import Exception ( throwTo )
-#endif
+# endif
import Posix ( Handler(Catch), installHandler, sigINT, sigQUIT )
import Dynamic ( toDyn )
#endif
-
------------------------------------------------------------------------------
--- Changes:
-
--- * -fglasgow-exts NO LONGER IMPLIES -package lang!!! (-fglasgow-exts is a
--- dynamic flag whereas -package is a static flag.)
-
-----------------------------------------------------------------------------
-- ToDo:
-- 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
-----------------------------------------------------------------------------
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<size> \
+ \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
-- 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)))
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
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.")
-- 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
let lang = case mode of
- StopBefore HCc -> HscC
DoInteractive -> HscInterpreted
- _other | opt_level >= 1 -> HscC -- -O implies -fvia-C
- | otherwise -> defaultHscLang
+ _other -> hscLang dyn_flags
- setDynFlags (defaultDynFlags{ coreToDo = core_todo,
- stgToDo = stg_todo,
- hscLang = lang,
- -- leave out hscOutName for now
- hscOutName = panic "Main.main:hscOutName not set",
-
- verbosity = case mode of
- DoInteractive -> 1
- DoMake -> 1
- _other -> 0,
- })
+ 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) []
-- 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
-- -ohi sanity checking
ohi <- readIORef v_Output_hi
if (isJust ohi &&
- (mode == DoMake || mode == DoInteractive || length srcs > 1))
+ (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 (length srcs > 1 && isJust o_file && mode /= DoLink && mode /= DoMkDLL)
+ if (srcs `lengthExceeds` 1 && isJust o_file && mode /= DoLink && mode /= DoMkDLL)
then throwDyn (UsageError "can't apply -o to multiple source files")
else do
-- 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
+-- hPutStrLn stderr "before" >> hFlush stderr
phases <- genPipeline (StopBefore Hsc) stop_flag
- False{-not persistent-} defaultHscLang
- src_and_suff
+ False{-not persistent-} defaultHscLang
+ src_and_suff
+-- hPutStrLn stderr "after" >> hFlush stderr
pipeLoop phases src_and_suff False{-no linking-} False{-no -o flag-}
basename suffix
-- rest of compilation
hsc_lang <- dynFlag hscLang
+-- hPutStrLn stderr ("before-1 " ++ show (pp,mode)) >> hFlush stderr
phases <- genPipeline mode stop_flag True hsc_lang pp
+-- hPutStrLn stderr "after" >> hFlush stderr
(r,_) <- pipeLoop phases pp (mode==DoLink || mode==DoMkDLL)
True{-use -o flag-} basename suffix
return r
case mods of
[] -> throwDyn (UsageError "no input files")
- mod -> do state <- cmInit Batch
- (_, ok, _) <- cmLoadModule state mods
+ _ -> do dflags <- getDynFlags
+ state <- cmInit Batch
+ graph <- cmDepAnal state dflags mods
+ (_, ok, _) <- cmLoadModules state dflags graph
when (not ok) (exitWith (ExitFailure 1))
return ()
= do minus_ls <- readIORef v_Cmdline_libraries
let (objs, mods) = partition objish_file fileish_args
- libs = map Left objs ++ map Right minus_ls
+ libs = map Object objs ++ map DLL minus_ls
state <- cmInit Interactive
interactiveUI state mods libs
#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