{-# OPTIONS -fno-warn-incomplete-patterns -optc-DNON_POSIX_SOURCE #-}
-----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.122 2003/05/21 12:38:36 simonmar Exp $
+-- $Id: Main.hs,v 1.138 2004/08/13 13:07:05 simonmar Exp $
--
-- GHC Driver program
--
-----------------------------------------------------------------------------
-- with path so that ghc -M can find config.h
-#include "../includes/config.h"
+#include "../includes/ghcconfig.h"
module Main (main) where
import CompManager ( cmInit, cmLoadModules, cmDepAnal )
import HscTypes ( GhciMode(..) )
import Config ( cBooterVersion, cGhcUnregisterised, cProjectVersion )
-import SysTools ( getPackageConfigPath, initSysTools, cleanTempFiles )
+import SysTools ( getPackageConfigPath, initSysTools, cleanTempFiles,
+ normalisePath )
import Packages ( showPackages, getPackageConfigMap, basePackage,
haskell98Package
)
-import DriverPipeline ( staticLink, doMkDLL, genPipeline, pipeLoop )
-import DriverState ( buildCoreToDo, buildStgToDo,
+import DriverPipeline ( staticLink, doMkDLL, runPipeline )
+import DriverState ( 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_Output_file, v_Output_hi,
readPackageConf, verifyOutputFiles, v_NoLink,
v_Build_tag
)
dynamic_flags, processArgs, static_flags)
import DriverMkDepend ( beginMkDependHS, endMkDependHS )
-import DriverPhases ( Phase(HsPp, Hsc), haskellish_src_file, objish_file, isSourceFile )
+import DriverPhases ( isSourceFilename )
-import DriverUtil ( add, handle, handleDyn, later, splitFilename,
- unknownFlagsErr, getFileSuffix )
+import DriverUtil ( add, handle, handleDyn, later, unknownFlagsErr )
import CmdLineOpts ( dynFlag, restoreDynFlags,
saveDynFlags, setDynFlags, getDynFlags, dynFlag,
- DynFlags(..), HscLang(..), v_Static_hsc_opts,
- defaultHscLang
+ DynFlags(..), HscLang(..), v_Static_hsc_opts
)
import BasicTypes ( failed )
import Outputable
hFlush stdout
case exception of
-- an IO exception probably isn't our fault, so don't panic
- IOException _ -> hPutStr stderr (show exception)
+ IOException _ -> hPutStrLn stderr (show exception)
AsyncException StackOverflow ->
- hPutStrLn stderr "stack overflow: use +RTS -K<size> \
- \to increase it"
+ hPutStrLn stderr "stack overflow: use +RTS -K<size> to increase it"
_other -> hPutStr stderr (show (Panic (show exception)))
exitWith (ExitFailure 1)
) $ do
-- -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 (notNull orig_ways && mode == DoInteractive) $
+ when (notNull orig_ways && isInteractive mode) $
do throwDyn (UsageError
"--interactive can't be used with -prof, -ticky, -unreg or -smp.")
extra_non_static <- processArgs static_flags
(unreg_opts ++ way_opts ++ pkg_extra_opts) []
- -- give the static flags to hsc
+ -- Give the static flags to hsc
static_opts <- buildStaticHscOpts
writeIORef v_Static_hsc_opts static_opts
-- 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
-- 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.
dyn_flags <- getDynFlags
- build_tag <- readIORef v_Build_tag
let lang = case mode of
DoInteractive -> HscInterpreted
- _other | build_tag /= "" -> HscC
- | otherwise -> hscLang dyn_flags
- -- for ways other that the normal way, we must
- -- compile via C.
+ DoEval _ -> HscInterpreted
+ _other -> hscLang dyn_flags
- setDynFlags (dyn_flags{ coreToDo = core_todo,
- stgToDo = stg_todo,
+ setDynFlags (dyn_flags{ stgToDo = stg_todo,
hscLang = lang,
-- leave out hscOutName for now
hscOutName = panic "Main.main:hscOutName not set",
- verbosity = 1
+ verbosity = case mode of
+ DoEval _ -> 0
+ _other -> 1
})
-- The rest of the arguments are "dynamic"
-- save the "initial DynFlags" away
saveDynFlags
- -- We split out the object files (.o, .dll) and add them
- -- to v_Ld_inputs for use by the linker
- let (objs, srcs) = partition objish_file fileish_args
- mapM_ (add v_Ld_inputs) objs
+ let
+ {-
+ We split out the object files (.o, .dll) and add them
+ to v_Ld_inputs for use by the linker.
+
+ The following things should be considered compilation manager inputs:
+
+ - haskell source files (strings ending in .hs, .lhs or other
+ haskellish extension),
+
+ - module names (not forgetting hierarchical module names),
+
+ - and finally we consider everything not containing a '.' to be
+ a comp manager input, as shorthand for a .hs or .lhs filename.
+
+ Everything else is considered to be a linker object, and passed
+ straight through to the linker.
+ -}
+ looks_like_an_input m = isSourceFilename m
+ || looksLikeModuleName m
+ || '.' `notElem` m
+
+ -- To simplify the handling of filepaths, we normalise all filepaths right
+ -- away - e.g., for win32 platforms, backslashes are converted
+ -- into forward slashes.
+ normal_fileish_paths = map normalisePath fileish_args
+ (srcs, objs) = partition looks_like_an_input normal_fileish_paths
+
+ -- Note: have v_Ld_inputs maintain the order in which 'objs' occurred on
+ -- the command-line.
+ mapM_ (add v_Ld_inputs) (reverse objs)
---------------- Display banners and configuration -----------
showBanners mode conf_file static_opts
---------------- Final sanity checking -----------
checkOptions mode srcs objs
+ -- 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.
+ let def_hs_pkgs = [basePackage, haskell98Package]
+
---------------- Do the business -----------
case mode of
DoMake -> doMake srcs
endMkDependHS }
StopBefore p -> do { compileFiles mode srcs; return () }
DoMkDLL -> do { o_files <- compileFiles mode srcs;
- doMkDLL o_files }
+ doMkDLL o_files def_hs_pkgs }
DoLink -> do { o_files <- compileFiles mode srcs;
omit_linking <- readIORef v_NoLink;
when (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.
+ (staticLink o_files def_hs_pkgs) }
#ifndef GHCI
- DoInteractive -> throwDyn (CmdLineError "not built for interactive use")
+ DoInteractive -> noInteractiveError
+ DoEval _ -> noInteractiveError
+ where
+ noInteractiveError = throwDyn (CmdLineError "not built for interactive use")
#else
- DoInteractive -> interactiveUI srcs
+ DoInteractive -> interactiveUI srcs Nothing
+ DoEval expr -> interactiveUI srcs (Just expr)
#endif
-- -----------------------------------------------------------------------------
checkOptions :: GhcMode -> [String] -> [String] -> IO ()
-- Final sanity checking before kicking off a compilation (pipeline).
checkOptions mode srcs objs = do
+ -- Complain about any unknown flags
+ let unknown_opts = [ f | f@('-':_) <- srcs ]
+ when (notNull unknown_opts) (unknownFlagsErr unknown_opts)
+
-- -ohi sanity check
ohi <- readIORef v_Output_hi
if (isJust ohi &&
- (mode == DoMake || mode == DoInteractive || srcs `lengthExceeds` 1))
+ (mode == DoMake || isInteractive mode || srcs `lengthExceeds` 1))
then throwDyn (UsageError "-ohi can only be used when compiling a single source file")
else do
-- Check that there are some input files (except in the interactive
-- case)
- if null srcs && null objs && mode /= DoInteractive
+ if null srcs && null objs && not (isInteractive mode)
then throwDyn (UsageError "no input files")
else 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
+isInteractive DoInteractive = True
+isInteractive (DoEval _) = True
+isInteractive _ = False
-- -----------------------------------------------------------------------------
-- Compile files in one-shot mode.
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 (Haskell source only)
- 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_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
- return r
+ o_file <- readIORef v_Output_file
+ -- when linking, the -o argument refers to the linker's output.
+ -- otherwise, we use it as the name for the pipeline's output.
+ let maybe_o_file
+ | mode==DoLink || mode==DoMkDLL = Nothing
+ | otherwise = o_file
+
+ runPipeline mode stop_flag True maybe_o_file src Nothing{-no ModLocation-}
-- ----------------------------------------------------------------------------
doMake [] = throwDyn (UsageError "no input files")
doMake srcs = do
dflags <- getDynFlags
- state <- cmInit Batch
- graph <- cmDepAnal state dflags srcs
- (_, ok_flag, _) <- cmLoadModules state dflags graph
+ state <- cmInit Batch dflags
+ graph <- cmDepAnal state srcs
+ (_, ok_flag, _) <- cmLoadModules state graph
when (failed ok_flag) (exitWith (ExitFailure 1))
return ()
projects / ghc-hetmet.git / blobdiff