-{-# OPTIONS -W -fno-warn-incomplete-patterns #-}
+{-# OPTIONS -fno-warn-incomplete-patterns #-}
-----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.33 2000/11/24 09:51:39 simonpj Exp $
+-- $Id: Main.hs,v 1.59 2001/03/06 11:23:46 simonmar Exp $
--
-- GHC Driver program
--
#ifdef GHCI
-import Interpreter
import InteractiveUI
+import Char ( toLower )
+#endif
+
+#ifndef mingw32_TARGET_OS
import Dynamic
+import Posix
#endif
import CompManager
+import ParsePkgConf
import DriverPipeline
import DriverState
import DriverFlags
import DriverMkDepend
import DriverUtil
import Panic
-import DriverPhases ( Phase(..) )
-import CmdLineOpts ( HscLang(..), DynFlags(..), v_Static_hsc_opts )
+import DriverPhases ( Phase(..), haskellish_file, objish_file )
+import CmdLineOpts
import TmpFiles
import Finder ( initFinder )
import CmStaticInfo
import Config
+import Outputable
import Util
-
-
import Concurrent
-#ifndef mingw32_TARGET_OS
-import Posix
-#endif
import Directory
import IOExts
import Exception
-- 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
-- make sure OPTIONS in .hs file propogate to .hc file if -C or -keep-hc-file-too
-- reading the package configuration file is too slow
--- -H, -K, -Rghc-timing
--- hi-diffs
--- -ddump-all doesn't do anything
+-- -K<size>
-----------------------------------------------------------------------------
-- Differences vs. old driver:
-- 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 hi diffs (could be added later)
-- no -Ofile
-----------------------------------------------------------------------------
-- Main loop
main =
+ -- top-level exception handler: any unrecognised exception is a compiler bug.
+ handle (\exception -> do 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 :: BarfKind))
+ _ -> do hPutStrLn stderr (show (dyn :: GhcException))
exitWith (ExitFailure 1)
- ) $ do
+ ) $ 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 >= 2)
+ cleanTempFiles verb
) $ do
-- exceptions will be blocked while we clean the temporary files,
-- so there shouldn't be any difficulty if we receive further
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")
+ else throwDyn (OtherError ("Can't find package.conf in " ++ inplace_pkgconfig))
-- set the location of our various files
if am_installed
-- read the package configuration
conf_file <- readIORef v_Path_package_config
- contents <- readFile conf_file
- let pkg_details = read contents -- ToDo: faster
+ r <- parsePkgConf conf_file
+ case r of {
+ Left err -> throwDyn (OtherError (showSDoc err));
+ Right pkg_details -> do
+
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 []
- -- find the build tag, and re-process the build-specific options
- more_opts <- findBuildTag
- way_non_static <- processArgs static_flags more_opts []
+ -- -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 (not (null orig_ways) && mode == DoInteractive) $
+ do throwDyn (OtherError
+ "--interactive can't be used with -prof, -ticky, -unreg or -smp.")
+
+ -- Find the build tag, and re-process the build-specific options.
+ -- Also add in flags for unregisterised compilation, if
+ -- GhcUnregisterised=YES.
+ way_opts <- findBuildTag
+ let unreg_opts | cGhcUnregisterised == "YES" = unregFlags
+ | otherwise = []
+ way_non_static <- processArgs static_flags (unreg_opts ++ way_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).
+ -- 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
-- 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
+
+
let lang = case mode of
StopBefore HCc -> HscC
DoInteractive -> HscInterpreted
| otherwise -> defaultHscLang
writeIORef v_DynFlags
- DynFlags{ 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,
-
- flags = [] }
+ 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,
+ }
-- the rest of the arguments are "dynamic"
- srcs <- processArgs dynamic_flags (way_non_static ++
- non_static ++ warn_opts) []
+ srcs <- processArgs dynamic_flags (way_non_static ++ non_static) []
-- save the "initial DynFlags" away
init_dyn_flags <- readIORef v_DynFlags
writeIORef v_InitDynFlags init_dyn_flags
-- complain about any unknown flags
mapM unknownFlagErr [ f | f@('-':_) <- srcs ]
- -- save the flag state, because this could be modified by OPTIONS
- -- pragmas during the compilation, and we'll need to restore it
- -- before starting the next compilation.
- saved_driver_state <- readIORef v_Driver_state
- writeIORef v_InitDriverState saved_driver_state
-
verb <- dynFlag verbosity
when (verb >= 2)
when (verb >= 2)
(hPutStrLn stderr ("Using package config file: " ++ conf_file))
+ when (verb >= 3)
+ (hPutStrLn stderr ("Hsc static flags: " ++ unwords static_opts))
+
-- initialise the finder
pkg_avails <- getPackageInfo
initFinder pkg_avails
if (mode == DoMake) then beginMake srcs else do
if (mode == DoInteractive) then beginInteractive srcs else do
- -- for each source file, find which phases to run
- let lang = hscLang init_dyn_flags
- pipelines <- mapM (genPipeline mode stop_flag True lang) srcs
- let src_pipelines = zip srcs pipelines
-
-- sanity checking
o_file <- readIORef v_Output_file
ohi <- readIORef v_Output_hi
- if length srcs > 1 && (isJust ohi || (isJust o_file && mode /= DoLink))
+ 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")
else do
if null srcs then throwDyn (UsageError "no input files") else do
- let compileFile (src, phases) = do
- writeIORef v_Driver_state saved_driver_state
+ let compileFile src = do
writeIORef v_DynFlags init_dyn_flags
- r <- runPipeline phases src (mode==DoLink) True
+
+ -- 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
+ phases <- genPipeline (StopBefore Hsc) stop_flag
+ False{-not persistent-} defaultHscLang src
+ pipeLoop phases src 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
return r
- o_files <- mapM compileFile src_pipelines
+ o_files <- mapM compileFile srcs
when (mode == DoMkDependHS) endMkDependHS
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]
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
beginInteractive :: [String] -> IO ()
#ifndef GHCI
-beginInteractive = throwDyn (OtherError "not build for interactive use")
+beginInteractive = throwDyn (OtherError "not built for interactive use")
#else
-beginInteractive mods
- = do state <- cmInit Interactive
- (state', ok, ms)
- <- case mods of
- [] -> return (state, True, [])
- [mod] -> cmLoadModule state mod
- _ -> throwDyn (UsageError
- "only one module allowed with --interactive")
- interactiveUI state' ms
+beginInteractive fileish_args
+ = 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
+ case mods of
+ [] -> interactiveUI state Nothing libs
+ [mod] -> interactiveUI state (Just mod) libs
+ _ -> throwDyn (UsageError
+ "only one module allowed with --interactive")
#endif
projects / ghc-hetmet.git / blobdiff