-{-# OPTIONS -W -fno-warn-incomplete-patterns #-}
+{-# OPTIONS -fno-warn-incomplete-patterns #-}
-----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.28 2000/11/20 16:37:42 sewardj Exp $
+-- $Id: Main.hs,v 1.54 2001/02/20 11:04:42 simonmar Exp $
--
-- GHC Driver program
--
#include "HsVersions.h"
-import CompManager
-import Interpreter
+
#ifdef GHCI
import 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(..) )
-import CmdLineOpts ( HscLang(..), DynFlags(..), v_Static_hsc_opts )
-import Module ( mkModuleName )
+import DriverPhases ( Phase(..), haskellish_file )
+import CmdLineOpts
import TmpFiles
import Finder ( initFinder )
import CmStaticInfo
import Config
import Util
+
import Concurrent
-#ifndef mingw32_TARGET_OS
-import Posix
-#endif
import Directory
import IOExts
import Exception
-import Dynamic
import IO
import Monad
import List
+import Char ( toLower )
import System
import Maybe
-- 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 <- readIORef v_Verbose
+ verb <- dynFlag verbosity
cleanTempFiles verb
) $ do
-- exceptions will be blocked while we clean the temporary files,
(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",
- 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
- -- get the -v flag
- verb <- readIORef v_Verbose
+ when (verb >= 2)
+ (do hPutStr stderr "Glasgow Haskell Compiler, Version "
+ hPutStr stderr cProjectVersion
+ hPutStr stderr ", for Haskell 98, compiled by GHC version "
+ hPutStrLn stderr cBooterVersion)
- when verb (do hPutStr stderr "Glasgow Haskell Compiler, Version "
- hPutStr stderr cProjectVersion
- hPutStr stderr ", for Haskell 98, compiled by GHC version "
- hPutStrLn stderr cBooterVersion)
+ when (verb >= 2)
+ (hPutStrLn stderr ("Using package config file: " ++ conf_file))
- when verb (hPutStrLn stderr ("Using package config file: " ++ conf_file))
+ when (verb >= 3)
+ (hPutStrLn stderr ("Hsc static flags: " ++ unwords static_opts))
-- initialise the finder
- initFinder pkg_details
+ pkg_avails <- getPackageInfo
+ initFinder pkg_avails
-- mkdependHS is special
when (mode == DoMkDependHS) beginMkDependHS
-- make/interactive require invoking the compilation manager
- if (mode == DoMake) then beginMake pkg_details srcs else do
- if (mode == DoInteractive) then beginInteractive pkg_details 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
+ if (mode == DoMake) then beginMake srcs else do
+ if (mode == DoInteractive) then beginInteractive srcs else do
-- 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.
some -> writeIORef v_TopDir (drop 2 (last some)))
return others
-beginMake :: PackageConfigInfo -> [String] -> IO ()
-beginMake pkg_details mods
+beginMake :: [String] -> IO ()
+beginMake mods
= do case mods of
[] -> throwDyn (UsageError "no input files")
- [mod] -> do state <- cmInit pkg_details Batch
+ [mod] -> do state <- cmInit Batch
cmLoadModule state mod
return ()
_ -> throwDyn (UsageError "only one module allowed with --make")
+
+beginInteractive :: [String] -> IO ()
#ifndef GHCI
-beginInteractive = throwDyn (OtherError "not build for interactive use")
+beginInteractive = throwDyn (OtherError "not built for interactive use")
#else
-beginInteractive pkg_details mods
- = do state <- cmInit pkg_details Interactive
- case mods of
- [] -> return ()
- [mod] -> do cmLoadModule state mod; return ()
- _ -> throwDyn (UsageError
- "only one module allowed with --interactive")
- interactiveUI state
+beginInteractive fileish_args
+ = do minus_ls <- readIORef v_Cmdline_libraries
+ let is_libraryish nm
+ = let nmr = map toLower (reverse nm)
+ in take 2 nmr == "o."
+ libs = map Left (filter is_libraryish fileish_args)
+ ++ map Right minus_ls
+ mods = filter (not.is_libraryish) fileish_args
+ mod = case mods of
+ [] -> Nothing
+ [mod] -> Just mod
+ _ -> throwDyn (UsageError
+ "only one module allowed with --interactive")
+ state <- cmInit Interactive
+ interactiveUI state mod libs
#endif
projects / ghc-hetmet.git / blobdiff