-{-# OPTIONS -fno-warn-incomplete-patterns #-}
+{-# OPTIONS -fno-warn-incomplete-patterns -optc-DNON_POSIX_SOURCE #-}
+
-----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.79 2001/07/03 11:14:33 simonmar Exp $
+-- $Id: Main.hs,v 1.116 2002/12/18 16:29:30 simonmar Exp $
--
-- GHC Driver program
--
--- (c) Simon Marlow 2000
+-- (c) The University of Glasgow 2002
--
-----------------------------------------------------------------------------
#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 ( packageConfigPath, initSysTools, cleanTempFiles )
-import Packages ( showPackages, mungePackagePaths )
-import ParsePkgConf ( loadPackageConfig )
-
-import DriverPipeline ( GhcMode(..), doLink, doMkDLL, genPipeline,
- getGhcMode, pipeLoop, v_GhcMode
- )
-import DriverState ( buildCoreToDo, buildStgToDo, defaultHscLang,
- findBuildTag, getPackageInfo, unregFlags,
- v_Cmdline_libraries, v_Keep_tmp_files, v_Ld_inputs,
+import SysTools ( getPackageConfigPath, initSysTools, cleanTempFiles )
+import Packages ( showPackages, getPackageConfigMap )
+
+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, 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 )
-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:
-- 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)))
top_dir <- initSysTools minusB_args
-- Read the package configuration
- conf_file <- packageConfigPath
- proto_pkg_details <- loadPackageConfig conf_file
- let pkg_details = mungePackagePaths top_dir proto_pkg_details
- writeIORef v_Package_details pkg_details
-
- -- find the phase to stop after (i.e. -E, -C, -c, -S flags)
- (flags2, mode, stop_flag) <- getGhcMode argv'
- writeIORef v_GhcMode mode
-
- -- Show the GHCi banner?
-# ifdef GHCI
- when (mode == DoInteractive) $
- hPutStrLn stdout ghciWelcomeMsg
-# endif
+ conf_file <- getPackageConfigPath
+ readPackageConf conf_file
-- 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
+ 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 = case mode of
- DoInteractive -> 1
- DoMake -> 1
- _other -> 0,
- })
+ _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) []
-- save the "initial DynFlags" away
saveDynFlags
- -- complain about any unknown flags
- mapM unknownFlagErr [ f | f@('-':_) <- srcs ]
-
- -- Display details of the configuration in verbose mode
+ -- perform some checks of the options set / report unknowns.
+ checkOptions srcs
+
verb <- dynFlag verbosity
+ -- Show the GHCi banner
+# ifdef GHCI
+ when (mode == DoInteractive && 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
when (verb >= 2)
(hPutStrLn stderr ("Using package config file: " ++ conf_file))
- when (verb >= 3)
- (hPutStrLn stderr ("Hsc static flags: " ++ unwords static_opts))
-
+ pkg_details <- getPackageConfigMap
showPackages pkg_details
- -- initialise the finder
- pkg_avails <- getPackageInfo
- initFinder pkg_avails
+ when (verb >= 3)
+ (hPutStrLn stderr ("Hsc static flags: " ++ unwords static_opts))
-- mkdependHS is special
when (mode == DoMkDependHS) beginMkDependHS
-- -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
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 (length srcs > 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
let (basename, suffix) = splitFilename src
-- just preprocess (Haskell source only)
- pp <- if not (haskellish_src_file src) || mode == StopBefore Hsc
- then return src else do
+ 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
- pipeLoop phases src False{-no linking-} False{-no -o 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
+ 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_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 ()
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