{-# OPTIONS -fno-warn-incomplete-patterns #-}
-----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.52 2001/02/13 17:13:39 sewardj Exp $
+-- $Id: Main.hs,v 1.83 2001/08/03 23:38:50 ken Exp $
--
-- GHC Driver program
--
#ifdef GHCI
-import InteractiveUI
+import InteractiveUI(ghciWelcomeMsg, interactiveUI)
#endif
-#ifndef mingw32_TARGET_OS
-import Dynamic
-import Posix
-#endif
-import CompManager
-import DriverPipeline
-import DriverState
-import DriverFlags
-import DriverMkDepend
-import DriverUtil
-import Panic
-import DriverPhases ( Phase(..), haskellish_file )
-import CmdLineOpts
-import TmpFiles
import Finder ( initFinder )
-import CmStaticInfo
-import Config
+import CompManager ( cmInit, cmLoadModule )
+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,
+ v_OptLevel, v_Output_file, v_Output_hi,
+ v_Package_details, v_Ways, getPackageExtraGhcOpts
+ )
+import DriverFlags ( dynFlag, buildStaticHscOpts, dynamic_flags,
+ processArgs, static_flags)
+
+import DriverMkDepend ( beginMkDependHS, endMkDependHS )
+import DriverPhases ( Phase(Hsc, HCc), 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
+ )
+
+import Outputable
import Util
+import Panic ( GhcException(..), panic )
-
-import Concurrent
-import Directory
-import IOExts
-import Exception
-
+-- 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 Char ( toLower )
-import System
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
+
-----------------------------------------------------------------------------
-- Changes:
-----------------------------------------------------------------------------
-- ToDo:
--- -nohi doesn't work
-- new mkdependHS doesn't support all the options that the old one did (-X et al.)
-- time commands when run with -v
-- split marker
--- mkDLL
-- java generation
-- user ways
-- Win32 support: proper signal handling
main =
-- top-level exception handler: any unrecognised exception is a compiler bug.
- handle (\exception -> do hPutStr stderr (show (Panic (show exception)))
- exitWith (ExitFailure 1)
+ handle (\exception -> do
+ case exception of
+ -- an IO exception probably isn't our fault, so don't panic
+ IOException _ -> hPutStr stderr (show exception)
+#if __GLASGOW_HASKELL__ >= 501
+ -- let exit exceptions bubble all the way out.
+ ExitException e -> exitWith e
+#endif
+ _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
+ PhaseFailed _phase code -> do
+ hPutStr stderr "\nCompilation had errors\n"
+ exitWith code
Interrupted -> exitWith (ExitFailure 1)
_ -> do hPutStrLn stderr (show (dyn :: GhcException))
exitWith (ExitFailure 1)
-- signals.
-- install signal handlers
- main_thread <- myThreadId
#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
- argv <- getArgs
-
- -- grab any -B options from the command line first
- argv' <- setTopDir argv
- top_dir <- readIORef v_TopDir
-
- let installed s = top_dir ++ '/':s
- inplace s = top_dir ++ '/':cCURRENT_DIR ++ '/':s
-
- installed_pkgconfig = installed ("package.conf")
- inplace_pkgconfig = inplace (cGHC_DRIVER_DIR ++ "/package.conf.inplace")
-
- -- discover whether we're running in a build tree or in an installation,
- -- by looking for the package configuration file.
- am_installed <- doesFileExist installed_pkgconfig
-
- if am_installed
- then writeIORef v_Path_package_config installed_pkgconfig
- else do am_inplace <- doesFileExist inplace_pkgconfig
- if am_inplace
- then writeIORef v_Path_package_config inplace_pkgconfig
- else throwDyn (OtherError "can't find package.conf")
-
- -- set the location of our various files
- if am_installed
- then do writeIORef v_Path_usage (installed "ghc-usage.txt")
- writeIORef v_Pgm_L (installed "unlit")
- writeIORef v_Pgm_m (installed "ghc-asm")
- writeIORef v_Pgm_s (installed "ghc-split")
-
- else do writeIORef v_Path_usage (inplace (cGHC_DRIVER_DIR ++ "/ghc-usage.txt"))
- writeIORef v_Pgm_L (inplace cGHC_UNLIT)
- writeIORef v_Pgm_m (inplace cGHC_MANGLER)
- writeIORef v_Pgm_s (inplace cGHC_SPLIT)
-
- -- read the package configuration
- conf_file <- readIORef v_Path_package_config
- contents <- readFile conf_file
- let pkg_details = read contents -- ToDo: faster
+ argv <- getArgs
+ let (minusB_args, argv') = partition (prefixMatch "-B") argv
+ 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
-
-- process all the other arguments, and get the source files
non_static <- processArgs static_flags flags2 []
writeIORef v_OptLevel 0
orig_ways <- readIORef v_Ways
when (not (null orig_ways) && mode == DoInteractive) $
- do throwDyn (OtherError
+ do throwDyn (UsageError
"--interactive can't be used with -prof, -ticky, -unreg or -smp.")
-- Find the build tag, and re-process the build-specific options.
way_opts <- findBuildTag
let unreg_opts | cGhcUnregisterised == "YES" = unregFlags
| otherwise = []
- way_non_static <- processArgs static_flags (unreg_opts ++ way_opts) []
+ pkg_extra_opts <- getPackageExtraGhcOpts
+ extra_non_static <- processArgs static_flags
+ (unreg_opts ++ way_opts ++ pkg_extra_opts) []
-- give the static flags to hsc
static_opts <- buildStaticHscOpts
writeIORef v_Static_hsc_opts static_opts
- -- warnings
- warn_level <- readIORef v_Warning_opt
-
- let warn_opts = case warn_level of
- W_default -> standardWarnings
- W_ -> minusWOpts
- W_all -> minusWallOpts
- W_not -> []
-
-- build the default DynFlags (these may be adjusted on a per
-- module basis by OPTIONS pragmas and settings in the interpreter).
_other | opt_level >= 1 -> HscC -- -O implies -fvia-C
| otherwise -> defaultHscLang
- writeIORef v_DynFlags
- defaultDynFlags{ coreToDo = core_todo,
- stgToDo = stg_todo,
- hscLang = lang,
- -- leave out hscOutName for now
- hscOutName = panic "Main.main:hscOutName not set",
+ 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,
- }
+ verbosity = case mode of
+ DoInteractive -> 1
+ DoMake -> 1
+ _other -> 0,
+ })
-- the rest of the arguments are "dynamic"
- srcs <- processArgs dynamic_flags (way_non_static ++
- non_static ++ warn_opts) []
+ srcs <- processArgs dynamic_flags (extra_non_static ++ non_static) []
+
-- save the "initial DynFlags" away
- init_dyn_flags <- readIORef v_DynFlags
- writeIORef v_InitDynFlags init_dyn_flags
+ saveDynFlags
-- complain about any unknown flags
mapM unknownFlagErr [ f | f@('-':_) <- 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 >= 3)
(hPutStrLn stderr ("Hsc static flags: " ++ unwords static_opts))
+ showPackages pkg_details
+
-- initialise the finder
pkg_avails <- getPackageInfo
initFinder pkg_avails
-- 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))
+ then throwDyn (UsageError "-ohi can only be used when compiling a single source file")
+ else do
+
-- make/interactive require invoking the compilation manager
if (mode == DoMake) then beginMake srcs else do
if (mode == DoInteractive) then beginInteractive srcs else do
- -- sanity checking
+ -- -o sanity checking
o_file <- readIORef v_Output_file
- ohi <- readIORef v_Output_hi
- if length srcs > 1 && (isJust ohi || (isJust o_file && mode /= DoLink && mode /= DoMkDLL))
- then throwDyn (UsageError "can't apply -o or -ohi options to multiple source files")
+ if (length srcs > 1 && isJust o_file && mode /= DoLink && mode /= DoMkDLL)
+ then throwDyn (UsageError "can't apply -o to multiple source files")
else do
if null srcs then throwDyn (UsageError "no input files") else do
let compileFile src = do
- writeIORef v_DynFlags init_dyn_flags
+ 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
- pp <- if not (haskellish_file src) || mode == StopBefore Hsc
- then return src else do
+ -- just preprocess (Haskell source only)
+ let src_and_suff = (src, getFileSuffix src)
+ pp <- if not (haskellish_src_file src) || mode == StopBefore Hsc
+ 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
- dyn_flags <- readIORef v_DynFlags
- phases <- genPipeline mode stop_flag True (hscLang dyn_flags) pp
- r <- pipeLoop phases pp (mode==DoLink || mode==DoMkDLL) True{-use -o flag-}
- basename suffix
+ 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_files <- mapM compileFile srcs
when (mode == DoLink) (doLink o_files)
when (mode == DoMkDLL) (doMkDLL o_files)
- -- grab the last -B option on the command line, and
- -- set topDir to its value.
-setTopDir :: [String] -> IO [String]
-setTopDir args = do
- let (minusbs, others) = partition (prefixMatch "-B") args
- (case minusbs of
- [] -> writeIORef v_TopDir clibdir
- some -> writeIORef v_TopDir (drop 2 (last some)))
- return others
+
beginMake :: [String] -> IO ()
-beginMake mods
- = do case mods of
+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
- cmLoadModule state mod
+ mod -> do state <- cmInit Batch
+ (_, ok, _) <- cmLoadModule state mods
+ when (not ok) (exitWith (ExitFailure 1))
return ()
- _ -> throwDyn (UsageError "only one module allowed with --make")
beginInteractive :: [String] -> IO ()
#ifndef GHCI
-beginInteractive = throwDyn (OtherError "not built for interactive use")
+beginInteractive = throwDyn (CmdLineError "not built for interactive use")
#else
beginInteractive fileish_args
- = do let is_libraryish nm
- = let nmr = map toLower (reverse nm)
- in take 2 nmr == "o." ||
- take 3 nmr == "os." ||
- take 4 nmr == "lld."
- libs = filter is_libraryish fileish_args
- mods = filter (not.is_libraryish) fileish_args
- mod = case mods of
- [] -> Nothing
- [mod] -> Just mod
- _ -> throwDyn (UsageError
- "only one module allowed with --interactive")
+ = do minus_ls <- readIORef v_Cmdline_libraries
+
+ let (objs, mods) = partition objish_file fileish_args
+ libs = map Left objs ++ map Right minus_ls
+
state <- cmInit Interactive
- interactiveUI state mod libs
+ interactiveUI state mods libs
#endif
projects / ghc-hetmet.git / blobdiff