X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FDriverPipeline.hs;h=ac98eff593286c194f2d4e055d90b6e9797adeea;hp=9d8de34acba39fd6c15c8e39385802573e5e1795;hb=3eacdc7faf0d0e87a7201253f9f12c1fb4db7249;hpb=ef5b4b146aa172d8ac10f39b5eb3d7a0f948d8f1 diff --git a/ghc/compiler/main/DriverPipeline.hs b/ghc/compiler/main/DriverPipeline.hs index 9d8de34..ac98eff 100644 --- a/ghc/compiler/main/DriverPipeline.hs +++ b/ghc/compiler/main/DriverPipeline.hs @@ -2,16 +2,17 @@ -- -- GHC Driver -- --- (c) The University of Glasgow 2002 +-- (c) The University of Glasgow 2005 -- ----------------------------------------------------------------------------- -#include "../includes/ghcconfig.h" - module DriverPipeline ( + -- Run a series of compilation steps in a pipeline, for a + -- collection of source files. + oneShot, compileFile, -- Interfaces for the batch-mode driver - runPipeline, staticLink, + staticLink, -- Interfaces for the compilation manager (interpreted/batch-mode) preprocess, @@ -19,18 +20,15 @@ module DriverPipeline ( link, -- DLL building - doMkDLL + doMkDLL, + ) where #include "HsVersions.h" import Packages -import GetImports -import DriverState -import DriverUtil -import DriverMkDepend +import HeaderInfo import DriverPhases -import DriverFlags import SysTools ( newTempName, addFilesToClean, getSysMan, copy ) import qualified SysTools import HscMain @@ -39,24 +37,27 @@ import HscTypes import Outputable import Module import ErrUtils -import CmdLineOpts +import DynFlags +import StaticFlags ( v_Ld_inputs, opt_Static, WayName(..) ) import Config -import RdrName ( GlobalRdrEnv ) import Panic import Util +import StringBuffer ( hGetStringBuffer ) import BasicTypes ( SuccessFlag(..) ) import Maybes ( expectJust ) - -import ParserCoreUtils ( getCoreModuleName ) +import ParserCoreUtils ( getCoreModuleName ) +import SrcLoc ( unLoc ) +import SrcLoc ( Located(..) ) import EXCEPTION -import DATA_IOREF ( readIORef, writeIORef ) +import DATA_IOREF ( readIORef, writeIORef, IORef ) +import GLAEXTS ( Int(..) ) -import Time ( ClockTime ) import Directory import System import IO import Monad +import Data.List ( isSuffixOf ) import Maybe @@ -65,15 +66,14 @@ import Maybe -- Just preprocess a file, put the result in a temp. file (used by the -- compilation manager during the summary phase). +-- +-- We return the augmented DynFlags, because they contain the result +-- of slurping in the OPTIONS pragmas -preprocess :: DynFlags -> FilePath -> IO FilePath -preprocess dflags filename = - ASSERT(isHaskellSrcFilename filename) - do runPipeline (StopBefore Hsc) dflags ("preprocess") - False{-temporary output file-} - Nothing{-no specific output file-} - filename - Nothing{-no ModLocation-} +preprocess :: DynFlags -> (FilePath, Maybe Phase) -> IO (DynFlags, FilePath) +preprocess dflags (filename, mb_phase) = + ASSERT2(isJust mb_phase || isHaskellSrcFilename filename, text filename) + runPipeline anyHsc dflags (filename, mb_phase) Temporary Nothing{-no ModLocation-} -- --------------------------------------------------------------------------- -- Compile @@ -85,54 +85,40 @@ preprocess dflags filename = -- reading the OPTIONS pragma from the source file, and passing the -- output of hsc through the C compiler. --- The driver sits between 'compile' and 'hscMain', translating calls --- to the former into calls to the latter, and results from the latter --- into results from the former. It does things like preprocessing --- the .hs file if necessary, and compiling up the .stub_c files to --- generate Linkables. - -- NB. No old interface can also mean that the source has changed. compile :: HscEnv - -> Module - -> ModLocation - -> ClockTime -- timestamp of original source file - -> Bool -- True <=> source unchanged - -> Bool -- True <=> have object - -> Maybe ModIface -- old interface, if available + -> ModSummary + -> Maybe Linkable -- Just linkable <=> source unchanged + -> Maybe ModIface -- Old interface, if available + -> Int -> Int -> IO CompResult data CompResult - = CompOK ModDetails -- New details - (Maybe GlobalRdrEnv) -- Lexical environment for the module - -- (Maybe because we may have loaded it from - -- its precompiled interface) - ModIface -- New iface - (Maybe Linkable) -- New code; Nothing => compilation was not reqd - -- (old code is still valid) + = CompOK ModDetails -- New details + ModIface -- New iface + (Maybe Linkable) -- a Maybe, for the same reasons as hm_linkable | CompErrs -compile hsc_env this_mod location src_timestamp - source_unchanged have_object - old_iface = do +compile hsc_env mod_summary maybe_old_linkable old_iface mod_index nmods = do - let dyn_flags = hsc_dflags hsc_env + let dflags0 = ms_hspp_opts mod_summary + this_mod = ms_mod mod_summary + src_flavour = ms_hsc_src mod_summary - showPass dyn_flags - (showSDoc (text "Compiling" <+> ppr this_mod)) + have_object + | Just l <- maybe_old_linkable, isObjectLinkable l = True + | otherwise = False - let verb = verbosity dyn_flags - let input_fn = expectJust "compile:hs" (ml_hs_file location) - let input_fnpp = expectJust "compile:hspp" (ml_hspp_file location) + showPass dflags0 ("Compiling " ++ showModMsg have_object mod_summary) - when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp)) + let location = ms_location mod_summary + let input_fn = expectJust "compile:hs" (ml_hs_file location) + let input_fnpp = ms_hspp_file mod_summary - -- add in the OPTIONS from the source file - opts <- getOptionsFromSource input_fnpp - (dyn_flags,unhandled_flags) <- processDynamicFlags opts dyn_flags - checkProcessArgsResult unhandled_flags input_fn + debugTraceMsg dflags0 2 (text "compile: input file" <+> text input_fnpp) let (basename, _) = splitFilename input_fn @@ -140,101 +126,125 @@ compile hsc_env this_mod location src_timestamp -- This is needed when we try to compile the .hc file later, if it -- imports a _stub.h file that we created here. let current_dir = directoryOf basename - old_paths <- readIORef v_Include_paths - writeIORef v_Include_paths (current_dir : old_paths) - -- put back the old include paths afterward. - later (writeIORef v_Include_paths old_paths) $ do - - -- figure out what lang we're generating - hsc_lang <- hscMaybeAdjustLang (hscLang dyn_flags) - -- figure out what the next phase should be - next_phase <- hscNextPhase hsc_lang - -- figure out what file to generate the output into - get_output_fn <- genOutputFilenameFunc False Nothing next_phase basename - output_fn <- get_output_fn next_phase (Just location) - - let dyn_flags' = dyn_flags { hscLang = hsc_lang, + old_paths = includePaths dflags0 + dflags = dflags0 { includePaths = current_dir : old_paths } + + -- Figure out what lang we're generating + let hsc_lang = hscMaybeAdjustTarget dflags StopLn src_flavour (hscTarget dflags) + -- ... and what the next phase should be + let next_phase = hscNextPhase dflags src_flavour hsc_lang + -- ... and what file to generate the output into + output_fn <- getOutputFilename dflags next_phase + Temporary basename next_phase (Just location) + + let dflags' = dflags { hscTarget = hsc_lang, hscOutName = output_fn, - hscStubCOutName = basename ++ "_stub.c", - hscStubHOutName = basename ++ "_stub.h", extCoreName = basename ++ ".hcr" } -- -no-recomp should also work with --make - do_recomp <- readIORef v_Recomp - let source_unchanged' = source_unchanged && do_recomp - hsc_env' = hsc_env { hsc_dflags = dyn_flags' } - + let do_recomp = dopt Opt_RecompChecking dflags + source_unchanged = isJust maybe_old_linkable && do_recomp + hsc_env' = hsc_env { hsc_dflags = dflags' } + object_filename = ml_obj_file location + + let getStubLinkable False = return [] + getStubLinkable True + = do stub_o <- compileStub dflags' this_mod location + return [ DotO stub_o ] + + handleBatch (HscNoRecomp, iface, details) + = ASSERT (isJust maybe_old_linkable) + return (CompOK details iface maybe_old_linkable) + handleBatch (HscRecomp hasStub, iface, details) + | isHsBoot src_flavour + = return (CompOK details iface Nothing) + | otherwise + = do stub_unlinked <- getStubLinkable hasStub + (hs_unlinked, unlinked_time) <- + case hsc_lang of + HscNothing + -> return ([], ms_hs_date mod_summary) + -- We're in --make mode: finish the compilation pipeline. + _other + -> do runPipeline StopLn dflags (output_fn,Nothing) Persistent + (Just location) + -- The object filename comes from the ModLocation + o_time <- getModificationTime object_filename + return ([DotO object_filename], o_time) + let linkable = LM unlinked_time this_mod + (hs_unlinked ++ stub_unlinked) + return (CompOK details iface (Just linkable)) + + handleInterpreted (InteractiveNoRecomp, iface, details) + = ASSERT (isJust maybe_old_linkable) + return (CompOK details iface maybe_old_linkable) + handleInterpreted (InteractiveRecomp hasStub comp_bc, iface, details) + = do stub_unlinked <- getStubLinkable hasStub + let hs_unlinked = [BCOs comp_bc] + unlinked_time = ms_hs_date mod_summary + -- Why do we use the timestamp of the source file here, + -- rather than the current time? This works better in + -- the case where the local clock is out of sync + -- with the filesystem's clock. It's just as accurate: + -- if the source is modified, then the linkable will + -- be out of date. + let linkable = LM unlinked_time this_mod + (hs_unlinked ++ stub_unlinked) + return (CompOK details iface (Just linkable)) + + let runCompiler compiler handle + = do mbResult <- compiler hsc_env' mod_summary + source_unchanged old_iface + (Just (mod_index, nmods)) + case mbResult of + Nothing -> return CompErrs + Just result -> handle result -- run the compiler - hsc_result <- hscMain hsc_env' printErrorsAndWarnings this_mod location - source_unchanged' have_object old_iface - - case hsc_result of - HscFail -> return CompErrs - - HscNoRecomp details iface -> return (CompOK details Nothing iface Nothing) - - HscRecomp details rdr_env iface - stub_h_exists stub_c_exists maybe_interpreted_code -> do - let - maybe_stub_o <- compileStub dyn_flags' stub_c_exists - let stub_unlinked = case maybe_stub_o of - Nothing -> [] - Just stub_o -> [ DotO stub_o ] - - (hs_unlinked, unlinked_time) <- - case hsc_lang of - - -- in interpreted mode, just return the compiled code - -- as our "unlinked" object. - HscInterpreted -> - case maybe_interpreted_code of -#ifdef GHCI - Just comp_bc -> return ([BCOs comp_bc], src_timestamp) - -- Why do we use the timestamp of the source file here, - -- rather than the current time? This works better in - -- the case where the local clock is out of sync - -- with the filesystem's clock. It's just as accurate: - -- if the source is modified, then the linkable will - -- be out of date. -#endif - Nothing -> panic "compile: no interpreted code" - - -- we're in batch mode: finish the compilation pipeline. - _other -> do - let object_filename = ml_obj_file location - - runPipeline (StopBefore Ln) dyn_flags "" - True Nothing output_fn (Just location) - -- the object filename comes from the ModLocation - - o_time <- getModificationTime object_filename - return ([DotO object_filename], o_time) - - let linkable = LM unlinked_time this_mod - (hs_unlinked ++ stub_unlinked) - - return (CompOK details rdr_env iface (Just linkable)) + case hsc_lang of + HscInterpreted | not (isHsBoot src_flavour) -- We can't compile boot files to + -- bytecode so don't even try. + -> runCompiler hscCompileInteractive handleInterpreted + HscNothing + -> runCompiler hscCompileNothing handleBatch + _other + -> runCompiler hscCompileBatch handleBatch ----------------------------------------------------------------------------- -- stub .h and .c files (for foreign export support) -compileStub dflags stub_c_exists - | not stub_c_exists = return Nothing - | stub_c_exists = do +-- The _stub.c file is derived from the haskell source file, possibly taking +-- into account the -stubdir option. +-- +-- Consequently, we derive the _stub.o filename from the haskell object +-- filename. +-- +-- This isn't necessarily the same as the object filename we +-- would get if we just compiled the _stub.c file using the pipeline. +-- For example: +-- +-- ghc src/A.hs -odir obj +-- +-- results in obj/A.o, and src/A_stub.c. If we compile src/A_stub.c with +-- -odir obj, we would get obj/src/A_stub.o, which is wrong; we want +-- obj/A_stub.o. + +compileStub :: DynFlags -> Module -> ModLocation -> IO FilePath +compileStub dflags mod location = do + let (o_base, o_ext) = splitFilename (ml_obj_file location) + stub_o = o_base ++ "_stub" `joinFileExt` o_ext + -- compile the _stub.c file w/ gcc - let stub_c = hscStubCOutName dflags - stub_o <- runPipeline (StopBefore Ln) dflags "stub-compile" - True{-persistent output-} - Nothing{-no specific output file-} - stub_c - Nothing{-no ModLocation-} - return (Just stub_o) + let (stub_c,_) = mkStubPaths dflags mod location + runPipeline StopLn dflags (stub_c,Nothing) + (SpecificFile stub_o) Nothing{-no ModLocation-} + + return stub_o -- --------------------------------------------------------------------------- -- Link -link :: GhciMode -- interactive or batch +link :: GhcMode -- interactive or batch -> DynFlags -- dynamic flags -> Bool -- attempt linking in batch mode? -> HomePackageTable -- what to link @@ -253,7 +263,10 @@ link Interactive dflags batch_attempt_linking hpt return Succeeded #endif -link Batch dflags batch_attempt_linking hpt +link JustTypecheck dflags batch_attempt_linking hpt + = return Succeeded + +link BatchCompile dflags batch_attempt_linking hpt | batch_attempt_linking = do let @@ -263,72 +276,148 @@ link Batch dflags batch_attempt_linking hpt pkg_deps = concatMap (dep_pkgs . mi_deps . hm_iface) home_mod_infos -- the linkables to link - linkables = map hm_linkable home_mod_infos + linkables = map (expectJust "link".hm_linkable) home_mod_infos - when (verb >= 3) $ do - hPutStrLn stderr "link: linkables are ..." - hPutStrLn stderr (showSDoc (vcat (map ppr linkables))) + debugTraceMsg dflags 3 (text "link: linkables are ..." $$ vcat (map ppr linkables)) -- check for the -no-link flag - omit_linking <- readIORef v_NoLink - if omit_linking - then do when (verb >= 3) $ - hPutStrLn stderr "link(batch): linking omitted (-no-link flag given)." + if isNoLink (ghcLink dflags) + then do debugTraceMsg dflags 3 (text "link(batch): linking omitted (-c flag given).") return Succeeded else do - when (verb >= 1) $ - hPutStrLn stderr "Linking ..." - let getOfiles (LM _ _ us) = map nameOfObject (filter isObject us) obj_files = concatMap getOfiles linkables + exe_file = exeFileName dflags + + -- if the modification time on the executable is later than the + -- modification times on all of the objects, then omit linking + -- (unless the -no-recomp flag was given). + e_exe_time <- IO.try $ getModificationTime exe_file + let linking_needed + | Left _ <- e_exe_time = True + | Right t <- e_exe_time = + any (t <) (map linkableTime linkables) + + if dopt Opt_RecompChecking dflags && not linking_needed + then do debugTraceMsg dflags 1 (text exe_file <+> ptext SLIT("is up to date, linking not required.")) + return Succeeded + else do + + debugTraceMsg dflags 1 (ptext SLIT("Linking") <+> text exe_file + <+> text "...") + -- Don't showPass in Batch mode; doLink will do that for us. - staticLink dflags obj_files pkg_deps + let link = case ghcLink dflags of + MkDLL -> doMkDLL + StaticLink -> staticLink + link dflags obj_files pkg_deps - when (verb >= 3) (hPutStrLn stderr "link: done") + debugTraceMsg dflags 3 (text "link: done") -- staticLink only returns if it succeeds return Succeeded | otherwise - = do when (verb >= 3) $ do - hPutStrLn stderr "link(batch): upsweep (partially) failed OR" - hPutStrLn stderr " Main.main not exported; not linking." + = do debugTraceMsg dflags 3 (text "link(batch): upsweep (partially) failed OR" $$ + text " Main.main not exported; not linking.") return Succeeded - where - verb = verbosity dflags + +-- ----------------------------------------------------------------------------- +-- Compile files in one-shot mode. + +oneShot :: DynFlags -> Phase -> [(String, Maybe Phase)] -> IO () +oneShot dflags stop_phase srcs = do + o_files <- mapM (compileFile dflags stop_phase) srcs + doLink dflags stop_phase o_files + +compileFile :: DynFlags -> Phase -> (FilePath, Maybe Phase) -> IO FilePath +compileFile dflags stop_phase (src, mb_phase) = do + exists <- doesFileExist src + when (not exists) $ + throwDyn (CmdLineError ("does not exist: " ++ src)) + + let + split = dopt Opt_SplitObjs dflags + mb_o_file = outputFile dflags + ghc_link = ghcLink dflags -- Set by -c or -no-link + + -- When linking, the -o argument refers to the linker's output. + -- otherwise, we use it as the name for the pipeline's output. + output + | StopLn <- stop_phase, not (isNoLink ghc_link) = Persistent + -- -o foo applies to linker + | Just o_file <- mb_o_file = SpecificFile o_file + -- -o foo applies to the file we are compiling now + | otherwise = Persistent + + stop_phase' = case stop_phase of + As | split -> SplitAs + other -> stop_phase + + (_, out_file) <- runPipeline stop_phase' dflags + (src, mb_phase) output Nothing{-no ModLocation-} + return out_file + + +doLink :: DynFlags -> Phase -> [FilePath] -> IO () +doLink dflags stop_phase o_files + | not (isStopLn stop_phase) + = return () -- We stopped before the linking phase + + | otherwise + = case ghcLink dflags of + NoLink -> return () + StaticLink -> staticLink dflags o_files link_pkgs + MkDLL -> doMkDLL dflags o_files link_pkgs + where + -- Always link in the haskell98 package for static linking. Other + -- packages have to be specified via the -package flag. + link_pkgs + | ExtPackage h98_id <- haskell98PackageId (pkgState dflags) = [h98_id] + | otherwise = [] + + -- --------------------------------------------------------------------------- -- Run a compilation pipeline, consisting of multiple phases. +-- This is the interface to the compilation pipeline, which runs +-- a series of compilation steps on a single source file, specifying +-- at which stage to stop. + -- The DynFlags can be modified by phases in the pipeline (eg. by --- OPTIONS pragmas), and the changes affect later phases in the --- pipeline, but we throw away the resulting DynFlags at the end. +-- GHC_OPTIONS pragmas), and the changes affect later phases in the +-- pipeline. + +data PipelineOutput + = Temporary + -- output should be to a temporary file: we're going to + -- run more compilation steps on this output later + | Persistent + -- we want a persistent file, i.e. a file in the current directory + -- derived from the input filename, but with the appropriate extension. + -- eg. in "ghc -c Foo.hs" the output goes into ./Foo.o. + | SpecificFile FilePath + -- the output must go into the specified file. runPipeline - :: GhcMode -- when to stop - -> DynFlags -- dynamic flags - -> String -- "stop after" flag - -> Bool -- final output is persistent? - -> Maybe FilePath -- where to put the output, optionally - -> FilePath -- input filename - -> Maybe ModLocation -- a ModLocation for this module, if we have one - -> IO FilePath -- output filename - -runPipeline todo dflags stop_flag keep_output - maybe_output_filename input_fn maybe_loc + :: Phase -- When to stop + -> DynFlags -- Dynamic flags + -> (FilePath,Maybe Phase) -- Input filename (and maybe -x suffix) + -> PipelineOutput -- Output filename + -> Maybe ModLocation -- A ModLocation, if this is a Haskell module + -> IO (DynFlags, FilePath) -- (final flags, output filename) + +runPipeline stop_phase dflags (input_fn, mb_phase) output maybe_loc = do - split <- readIORef v_Split_object_files let (basename, suffix) = splitFilename input_fn - start_phase = startPhase suffix - stop_phase = case todo of - StopBefore As | split -> SplitAs - StopBefore phase -> phase - DoMkDependHS -> Ln - DoLink -> Ln - DoMkDLL -> Ln + -- If we were given a -x flag, then use that phase to start from + start_phase + | Just x_phase <- mb_phase = x_phase + | otherwise = startPhase suffix -- We want to catch cases of "you can't get there from here" before -- we start the pipeline, because otherwise it will just run off the @@ -336,101 +425,94 @@ runPipeline todo dflags stop_flag keep_output -- -- There is a partial ordering on phases, where A < B iff A occurs -- before B in a normal compilation pipeline. - -- + when (not (start_phase `happensBefore` stop_phase)) $ throwDyn (UsageError - ("flag `" ++ stop_flag - ++ "' is incompatible with source file `" - ++ input_fn ++ "'")) + ("cannot compile this file to desired target: " + ++ input_fn)) - -- generate a function which will be used to calculate output file names - -- as we go along. - get_output_fn <- genOutputFilenameFunc keep_output maybe_output_filename - stop_phase basename + -- this is a function which will be used to calculate output file names + -- as we go along (we partially apply it to some of its inputs here) + let get_output_fn = getOutputFilename dflags stop_phase output basename - -- and execute the pipeline... - (output_fn, maybe_loc) <- - pipeLoop dflags start_phase stop_phase input_fn basename suffix - get_output_fn maybe_loc + -- Execute the pipeline... + (dflags', output_fn, maybe_loc) <- + pipeLoop dflags start_phase stop_phase input_fn + basename suffix get_output_fn maybe_loc - -- sometimes, a compilation phase doesn't actually generate any output + -- Sometimes, a compilation phase doesn't actually generate any output -- (eg. the CPP phase when -fcpp is not turned on). If we end on this -- stage, but we wanted to keep the output, then we have to explicitly -- copy the file. - if keep_output - then do final_fn <- get_output_fn stop_phase maybe_loc - when (final_fn /= output_fn) $ - copy dflags ("Copying `" ++ output_fn ++ "' to `" ++ final_fn + case output of + Temporary -> + return (dflags', output_fn) + _other -> + do final_fn <- get_output_fn stop_phase maybe_loc + when (final_fn /= output_fn) $ + copy dflags ("Copying `" ++ output_fn ++ "' to `" ++ final_fn ++ "'") output_fn final_fn - return final_fn - else - return output_fn + return (dflags', final_fn) + -pipeLoop :: DynFlags -> Phase -> Phase -> FilePath -> String -> Suffix - -> (Phase -> Maybe ModLocation -> IO FilePath) - -> Maybe ModLocation -> IO (FilePath, Maybe ModLocation) +pipeLoop :: DynFlags -> Phase -> Phase + -> FilePath -> String -> Suffix + -> (Phase -> Maybe ModLocation -> IO FilePath) + -> Maybe ModLocation + -> IO (DynFlags, FilePath, Maybe ModLocation) -pipeLoop dflags phase stop_phase input_fn orig_basename orig_suff - get_output_fn maybe_loc +pipeLoop dflags phase stop_phase + input_fn orig_basename orig_suff + orig_get_output_fn maybe_loc - | phase == stop_phase = return (input_fn, maybe_loc) -- all done + | phase `eqPhase` stop_phase -- All done + = return (dflags, input_fn, maybe_loc) - | not (phase `happensBefore` stop_phase) = + | not (phase `happensBefore` stop_phase) -- Something has gone wrong. We'll try to cover all the cases when -- this could happen, so if we reach here it is a panic. -- eg. it might happen if the -C flag is used on a source file that -- has {-# OPTIONS -fasm #-}. - panic ("pipeLoop: at phase " ++ show phase ++ - " but I wanted to stop at phase " ++ show stop_phase) - - | otherwise = do - maybe_next_phase <- runPhase phase dflags orig_basename - orig_suff input_fn get_output_fn maybe_loc - case maybe_next_phase of - (Nothing, dflags, maybe_loc, output_fn) -> do - -- we stopped early, but return the *final* filename - -- (it presumably already exists) - final_fn <- get_output_fn stop_phase maybe_loc - return (final_fn, maybe_loc) - (Just next_phase, dflags', maybe_loc, output_fn) -> - pipeLoop dflags' next_phase stop_phase output_fn - orig_basename orig_suff get_output_fn maybe_loc - - -genOutputFilenameFunc :: Bool -> Maybe FilePath -> Phase -> String - -> IO (Phase{-next phase-} -> Maybe ModLocation -> IO FilePath) -genOutputFilenameFunc keep_final_output maybe_output_filename - stop_phase basename - = do - hcsuf <- readIORef v_HC_suf - odir <- readIORef v_Output_dir - osuf <- readIORef v_Object_suf - keep_hc <- readIORef v_Keep_hc_files -#ifdef ILX - keep_il <- readIORef v_Keep_il_files - keep_ilx <- readIORef v_Keep_ilx_files -#endif - keep_raw_s <- readIORef v_Keep_raw_s_files - keep_s <- readIORef v_Keep_s_files - let - myPhaseInputExt HCc | Just s <- hcsuf = s - myPhaseInputExt Ln = osuf - myPhaseInputExt other = phaseInputExt other + = panic ("pipeLoop: at phase " ++ show phase ++ + " but I wanted to stop at phase " ++ show stop_phase) + + | otherwise + = do { (next_phase, dflags', maybe_loc, output_fn) + <- runPhase phase stop_phase dflags orig_basename + orig_suff input_fn orig_get_output_fn maybe_loc + ; pipeLoop dflags' next_phase stop_phase output_fn + orig_basename orig_suff orig_get_output_fn maybe_loc } + +getOutputFilename + :: DynFlags -> Phase -> PipelineOutput -> String + -> Phase{-next phase-} -> Maybe ModLocation -> IO FilePath +getOutputFilename dflags stop_phase output basename + = func + where + hcsuf = hcSuf dflags + odir = objectDir dflags + osuf = objectSuf dflags + keep_hc = dopt Opt_KeepHcFiles dflags + keep_raw_s = dopt Opt_KeepRawSFiles dflags + keep_s = dopt Opt_KeepSFiles dflags + + myPhaseInputExt HCc = hcsuf + myPhaseInputExt StopLn = osuf + myPhaseInputExt other = phaseInputExt other func next_phase maybe_location - | is_last_phase, Just f <- maybe_output_filename = return f - | is_last_phase && keep_final_output = persistent_fn - | keep_this_output = persistent_fn - | otherwise = newTempName suffix - + | is_last_phase, Persistent <- output = persistent_fn + | is_last_phase, SpecificFile f <- output = return f + | keep_this_output = persistent_fn + | otherwise = newTempName dflags suffix where - is_last_phase = next_phase == stop_phase + is_last_phase = next_phase `eqPhase` stop_phase -- sometimes, we keep output from intermediate stages keep_this_output = case next_phase of - Ln -> True + StopLn -> True Mangle | keep_raw_s -> True As | keep_s -> True HCc | keep_hc -> True @@ -440,18 +522,16 @@ genOutputFilenameFunc keep_final_output maybe_output_filename -- persistent object files get put in odir persistent_fn - | Ln <- next_phase = return odir_persistent - | otherwise = return persistent + | StopLn <- next_phase = return odir_persistent + | otherwise = return persistent - persistent = basename ++ '.':suffix + persistent = basename `joinFileExt` suffix odir_persistent | Just loc <- maybe_location = ml_obj_file loc - | Just d <- odir = replaceFilenameDirectory persistent d + | Just d <- odir = d `joinFileName` persistent | otherwise = persistent - return func - -- ----------------------------------------------------------------------------- -- Each phase in the pipeline returns the next phase to execute, and the @@ -463,7 +543,8 @@ genOutputFilenameFunc keep_final_output maybe_output_filename -- of a source file can change the latter stages of the pipeline from -- taking the via-C route to using the native code generator. -runPhase :: Phase +runPhase :: Phase -- Do this phase first + -> Phase -- Stop just before this phase -> DynFlags -> String -- basename of original input source -> String -- its extension @@ -471,18 +552,22 @@ runPhase :: Phase -> (Phase -> Maybe ModLocation -> IO FilePath) -- how to calculate the output filename -> Maybe ModLocation -- the ModLocation, if we have one - -> IO (Maybe Phase, -- next phase + -> IO (Phase, -- next phase DynFlags, -- new dynamic flags Maybe ModLocation, -- the ModLocation, if we have one FilePath) -- output filename + -- Invariant: the output filename always contains the output + -- Interesting case: Hsc when there is no recompilation to do + -- Then the output filename is still a .o file + ------------------------------------------------------------------------------- -- Unlit phase -runPhase Unlit dflags _basename _suff input_fn get_output_fn maybe_loc +runPhase (Unlit sf) _stop dflags _basename _suff input_fn get_output_fn maybe_loc = do let unlit_flags = getOpts dflags opt_L -- The -h option passes the file name for unlit to put in a #line directive - output_fn <- get_output_fn Cpp maybe_loc + output_fn <- get_output_fn (Cpp sf) maybe_loc SysTools.runUnlit dflags (map SysTools.Option unlit_flags ++ @@ -492,184 +577,209 @@ runPhase Unlit dflags _basename _suff input_fn get_output_fn maybe_loc , SysTools.FileOption "" output_fn ]) - return (Just Cpp, dflags, maybe_loc, output_fn) + return (Cpp sf, dflags, maybe_loc, output_fn) ------------------------------------------------------------------------------- --- Cpp phase +-- Cpp phase : (a) gets OPTIONS out of file +-- (b) runs cpp if necessary -runPhase Cpp dflags basename suff input_fn get_output_fn maybe_loc - = do src_opts <- getOptionsFromSource input_fn - (dflags,unhandled_flags) <- processDynamicFlags src_opts dflags - checkProcessArgsResult unhandled_flags (basename++'.':suff) +runPhase (Cpp sf) _stop dflags0 basename suff input_fn get_output_fn maybe_loc + = do src_opts <- getOptionsFromFile input_fn + (dflags,unhandled_flags) <- parseDynamicFlags dflags0 (map unLoc src_opts) + checkProcessArgsResult unhandled_flags (basename `joinFileExt` suff) - if not (cppFlag dflags) then + if not (dopt Opt_Cpp dflags) then -- no need to preprocess CPP, just pass input file along -- to the next phase of the pipeline. - return (Just HsPp, dflags, maybe_loc, input_fn) + return (HsPp sf, dflags, maybe_loc, input_fn) else do - output_fn <- get_output_fn HsPp maybe_loc + output_fn <- get_output_fn (HsPp sf) maybe_loc doCpp dflags True{-raw-} False{-no CC opts-} input_fn output_fn - return (Just HsPp, dflags, maybe_loc, output_fn) + return (HsPp sf, dflags, maybe_loc, output_fn) ------------------------------------------------------------------------------- -- HsPp phase -runPhase HsPp dflags basename suff input_fn get_output_fn maybe_loc - = do if not (ppFlag dflags) then +runPhase (HsPp sf) _stop dflags basename suff input_fn get_output_fn maybe_loc + = do if not (dopt Opt_Pp dflags) then -- no need to preprocess, just pass input file along -- to the next phase of the pipeline. - return (Just Hsc, dflags, maybe_loc, input_fn) + return (Hsc sf, dflags, maybe_loc, input_fn) else do let hspp_opts = getOpts dflags opt_F - hs_src_pp_opts <- readIORef v_Hs_source_pp_opts - let orig_fn = basename ++ '.':suff - output_fn <- get_output_fn Hsc maybe_loc + let orig_fn = basename `joinFileExt` suff + output_fn <- get_output_fn (Hsc sf) maybe_loc SysTools.runPp dflags ( [ SysTools.Option orig_fn , SysTools.Option input_fn , SysTools.FileOption "" output_fn ] ++ - map SysTools.Option hs_src_pp_opts ++ map SysTools.Option hspp_opts ) - return (Just Hsc, dflags, maybe_loc, output_fn) + return (Hsc sf, dflags, maybe_loc, output_fn) ----------------------------------------------------------------------------- -- Hsc phase -- Compilation of a single module, in "legacy" mode (_not_ under -- the direction of the compilation manager). -runPhase Hsc dflags basename suff input_fn get_output_fn _maybe_loc = do - todo <- readIORef v_GhcMode - if todo == DoMkDependHS then do - locn <- doMkDependHSPhase dflags basename suff input_fn - return (Nothing, dflags, Just locn, input_fn) -- Ln is a dummy stop phase - - else do - -- normal Hsc mode, not mkdependHS +runPhase (Hsc src_flavour) stop dflags0 basename suff input_fn get_output_fn _maybe_loc + = do -- normal Hsc mode, not mkdependHS -- we add the current directory (i.e. the directory in which -- the .hs files resides) to the import path, since this is -- what gcc does, and it's probably what you want. let current_dir = directoryOf basename - paths <- readIORef v_Include_paths - writeIORef v_Include_paths (current_dir : paths) + paths = includePaths dflags0 + dflags = dflags0 { includePaths = current_dir : paths } -- gather the imports and module name - (_,_,mod_name) <- - if isExtCoreFilename ('.':suff) - then do - -- no explicit imports in ExtCore input. - m <- getCoreModuleName input_fn - return ([], [], mkModule m) - else - getImportsFromFile input_fn - - -- build a ModLocation to pass to hscMain. - location' <- mkHomeModLocation mod_name (basename ++ '.':suff) - - -- take -ohi into account if present - ohi <- readIORef v_Output_hi - let location | Just fn <- ohi = location'{ ml_hi_file = fn } - | otherwise = location' - - -- figure out if the source has changed, for recompilation avoidance. - -- only do this if we're eventually going to generate a .o file. - -- (ToDo: do when generating .hc files too?) + (hspp_buf,mod_name) <- + case src_flavour of + ExtCoreFile -> do { -- no explicit imports in ExtCore input. + ; m <- getCoreModuleName input_fn + ; return (Nothing, mkModule m) } + + other -> do { buf <- hGetStringBuffer input_fn + ; (_,_,L _ mod_name) <- getImports dflags buf input_fn + ; return (Just buf, mod_name) } + + -- Build a ModLocation to pass to hscMain. + -- The source filename is rather irrelevant by now, but it's used + -- by hscMain for messages. hscMain also needs + -- the .hi and .o filenames, and this is as good a way + -- as any to generate them, and better than most. (e.g. takes + -- into accout the -osuf flags) + location1 <- mkHomeModLocation2 dflags mod_name basename suff + + -- Boot-ify it if necessary + let location2 | isHsBoot src_flavour = addBootSuffixLocn location1 + | otherwise = location1 + + + -- Take -ohi into account if present + -- This can't be done in mkHomeModuleLocation because + -- it only applies to the module being compiles + let ohi = outputHi dflags + location3 | Just fn <- ohi = location2{ ml_hi_file = fn } + | otherwise = location2 + + -- Take -o into account if present + -- Very like -ohi, but we must *only* do this if we aren't linking + -- (If we're linking then the -o applies to the linked thing, not to + -- the object file for one module.) + -- Note the nasty duplication with the same computation in compileFile above + let expl_o_file = outputFile dflags + location4 | Just ofile <- expl_o_file + , isNoLink (ghcLink dflags) + = location3 { ml_obj_file = ofile } + | otherwise = location3 + + -- Make the ModSummary to hand to hscMain + src_timestamp <- getModificationTime (basename `joinFileExt` suff) + let + unused_field = panic "runPhase:ModSummary field" + -- Some fields are not looked at by hscMain + mod_summary = ModSummary { ms_mod = mod_name, + ms_hsc_src = src_flavour, + ms_hspp_file = input_fn, + ms_hspp_opts = dflags, + ms_hspp_buf = hspp_buf, + ms_location = location4, + ms_hs_date = src_timestamp, + ms_obj_date = Nothing, + ms_imps = unused_field, + ms_srcimps = unused_field } + + o_file = ml_obj_file location4 -- The real object file + + + -- Figure out if the source has changed, for recompilation avoidance. -- -- Setting source_unchanged to True means that M.o seems -- to be up to date wrt M.hs; so no need to recompile unless imports have -- changed (which the compiler itself figures out). -- Setting source_unchanged to False tells the compiler that M.o is out of -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless. - do_recomp <- readIORef v_Recomp - expl_o_file <- readIORef v_Output_file - - let o_file -- if the -o option is given and IT IS THE OBJECT FILE FOR - -- THIS COMPILATION, then use that to determine if the - -- source is unchanged. - | Just x <- expl_o_file, todo == StopBefore Ln = x - | otherwise = ml_obj_file location - + let do_recomp = dopt Opt_RecompChecking dflags source_unchanged <- - if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln )) - then return False - else do t1 <- getModificationTime (basename ++ '.':suff) - o_file_exists <- doesFileExist o_file + if not do_recomp || not (isStopLn stop) + -- Set source_unchanged to False unconditionally if + -- (a) recompilation checker is off, or + -- (b) we aren't going all the way to .o file (e.g. ghc -S) + then return False + -- Otherwise look at file modification dates + else do o_file_exists <- doesFileExist o_file if not o_file_exists then return False -- Need to recompile else do t2 <- getModificationTime o_file - if t2 > t1 + if t2 > src_timestamp then return True else return False -- get the DynFlags - hsc_lang <- hscMaybeAdjustLang (hscLang dflags) - next_phase <- hscNextPhase hsc_lang - output_fn <- get_output_fn next_phase (Just location) + let hsc_lang = hscMaybeAdjustTarget dflags stop src_flavour (hscTarget dflags) + let next_phase = hscNextPhase dflags src_flavour hsc_lang + output_fn <- get_output_fn next_phase (Just location4) - let dflags' = dflags { hscLang = hsc_lang, + let dflags' = dflags { hscTarget = hsc_lang, hscOutName = output_fn, - hscStubCOutName = basename ++ "_stub.c", - hscStubHOutName = basename ++ "_stub.h", extCoreName = basename ++ ".hcr" } - hsc_env <- newHscEnv OneShot dflags' - -- run the compiler! - result <- hscMain hsc_env printErrorsAndWarnings mod_name - location{ ml_hspp_file=Just input_fn } - source_unchanged - False - Nothing -- no iface - - case result of - - HscFail -> throwDyn (PhaseFailed "hsc" (ExitFailure 1)) - - HscNoRecomp details iface -> do - SysTools.touch dflags' "Touching object file" o_file - return (Nothing, dflags', Just location, output_fn) + hsc_env <- newHscEnv dflags' - HscRecomp _details _rdr_env _iface - stub_h_exists stub_c_exists - _maybe_interpreted_code -> do + -- Tell the finder cache about this module + addHomeModuleToFinder hsc_env mod_name location4 - -- deal with stubs - maybe_stub_o <- compileStub dflags' stub_c_exists - case maybe_stub_o of - Nothing -> return () - Just stub_o -> add v_Ld_inputs stub_o - case hscLang dflags' of - HscNothing -> return (Nothing, dflags', Just location, output_fn) - _ -> return (Just next_phase, dflags', Just location, output_fn) + -- run the compiler! + mbResult <- hscCompileOneShot hsc_env + mod_summary source_unchanged + Nothing -- No iface + Nothing -- No "module i of n" progress info + + case mbResult of + Nothing -> throwDyn (PhaseFailed "hsc" (ExitFailure 1)) + Just HscNoRecomp + -> do SysTools.touch dflags' "Touching object file" o_file + -- The .o file must have a later modification date + -- than the source file (else we wouldn't be in HscNoRecomp) + -- but we touch it anyway, to keep 'make' happy (we think). + return (StopLn, dflags', Just location4, o_file) + Just (HscRecomp hasStub) + -> do when hasStub $ + do stub_o <- compileStub dflags' mod_name location4 + consIORef v_Ld_inputs stub_o + -- In the case of hs-boot files, generate a dummy .o-boot + -- stamp file for the benefit of Make + when (isHsBoot src_flavour) $ + SysTools.touch dflags' "Touching object file" o_file + return (next_phase, dflags', Just location4, output_fn) ----------------------------------------------------------------------------- -- Cmm phase -runPhase CmmCpp dflags basename suff input_fn get_output_fn maybe_loc +runPhase CmmCpp stop dflags basename suff input_fn get_output_fn maybe_loc = do output_fn <- get_output_fn Cmm maybe_loc doCpp dflags False{-not raw-} True{-include CC opts-} input_fn output_fn - return (Just Cmm, dflags, maybe_loc, output_fn) + return (Cmm, dflags, maybe_loc, output_fn) -runPhase Cmm dflags basename suff input_fn get_output_fn maybe_loc +runPhase Cmm stop dflags basename suff input_fn get_output_fn maybe_loc = do - hsc_lang <- hscMaybeAdjustLang (hscLang dflags) - next_phase <- hscNextPhase hsc_lang + let hsc_lang = hscMaybeAdjustTarget dflags stop HsSrcFile (hscTarget dflags) + let next_phase = hscNextPhase dflags HsSrcFile hsc_lang output_fn <- get_output_fn next_phase maybe_loc - let dflags' = dflags { hscLang = hsc_lang, + let dflags' = dflags { hscTarget = hsc_lang, hscOutName = output_fn, - hscStubCOutName = basename ++ "_stub.c", - hscStubHOutName = basename ++ "_stub.h", extCoreName = basename ++ ".hcr" } ok <- hscCmmFile dflags' input_fn when (not ok) $ throwDyn (PhaseFailed "cmm" (ExitFailure 1)) - return (Just next_phase, dflags, maybe_loc, output_fn) + return (next_phase, dflags, maybe_loc, output_fn) ----------------------------------------------------------------------------- -- Cc phase @@ -677,21 +787,12 @@ runPhase Cmm dflags basename suff input_fn get_output_fn maybe_loc -- we don't support preprocessing .c files (with -E) now. Doing so introduces -- way too many hacks, and I can't say I've ever used it anyway. -runPhase cc_phase dflags basename suff input_fn get_output_fn maybe_loc - | cc_phase == Cc || cc_phase == HCc +runPhase cc_phase stop dflags basename suff input_fn get_output_fn maybe_loc + | cc_phase `eqPhase` Cc || cc_phase `eqPhase` HCc = do let cc_opts = getOpts dflags opt_c - cmdline_include_paths <- readIORef v_Include_paths - - split <- readIORef v_Split_object_files - mangle <- readIORef v_Do_asm_mangling - - let hcc = cc_phase == HCc + hcc = cc_phase `eqPhase` HCc - next_phase - | hcc && mangle = Mangle - | otherwise = As - - output_fn <- get_output_fn next_phase maybe_loc + let cmdline_include_paths = includePaths dflags -- HC files have the dependent packages stamped into them pkgs <- if hcc then getHCFilePackages input_fn else return [] @@ -703,60 +804,92 @@ runPhase cc_phase dflags basename suff input_fn get_output_fn maybe_loc let include_paths = foldr (\ x xs -> "-I" : x : xs) [] (cmdline_include_paths ++ pkg_include_dirs) - mangle <- readIORef v_Do_asm_mangling - (md_c_flags, md_regd_c_flags) <- machdepCCOpts dflags + let (md_c_flags, md_regd_c_flags) = machdepCCOpts dflags + let pic_c_flags = picCCOpts dflags let verb = getVerbFlag dflags pkg_extra_cc_opts <- getPackageExtraCcOpts dflags pkgs - split_objs <- readIORef v_Split_object_files - let split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ] + let split_objs = dopt Opt_SplitObjs dflags + split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ] | otherwise = [ ] - excessPrecision <- readIORef v_Excess_precision + let excessPrecision = dopt Opt_ExcessPrecision dflags + + let cc_opt | optLevel dflags >= 2 = "-O2" + | otherwise = "-O" + + -- Decide next phase + + let mangle = dopt Opt_DoAsmMangling dflags + next_phase + | hcc && mangle = Mangle + | otherwise = As + output_fn <- get_output_fn next_phase maybe_loc + + let + more_hcc_opts = +#if i386_TARGET_ARCH + -- on x86 the floating point regs have greater precision + -- than a double, which leads to unpredictable results. + -- By default, we turn this off with -ffloat-store unless + -- the user specified -fexcess-precision. + (if excessPrecision then [] else [ "-ffloat-store" ]) ++ +#endif + -- gcc's -fstrict-aliasing allows two accesses to memory + -- to be considered non-aliasing if they have different types. + -- This interacts badly with the C code we generate, which is + -- very weakly typed, being derived from C--. + ["-fno-strict-aliasing"] + - -- force the C compiler to interpret this file as C when - -- compiling .hc files, by adding the -x c option. - let langopt - | cc_phase == HCc = [ SysTools.Option "-x", SysTools.Option "c"] - | otherwise = [ ] - SysTools.runCc dflags (langopt ++ + SysTools.runCc dflags ( + -- force the C compiler to interpret this file as C when + -- compiling .hc files, by adding the -x c option. + -- Also useful for plain .c files, just in case GHC saw a + -- -x c option. + [ SysTools.Option "-x", SysTools.Option "c"] ++ [ SysTools.FileOption "" input_fn , SysTools.Option "-o" , SysTools.FileOption "" output_fn ] ++ map SysTools.Option ( md_c_flags - ++ (if cc_phase == HCc && mangle + ++ pic_c_flags + ++ (if hcc && mangle then md_regd_c_flags else []) - ++ [ verb, "-S", "-Wimplicit", "-O" ] + ++ (if hcc + then more_hcc_opts + else []) + ++ [ verb, "-S", "-Wimplicit", cc_opt ] ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ] ++ cc_opts ++ split_opt - ++ (if excessPrecision then [] else [ "-ffloat-store" ]) ++ include_paths ++ pkg_extra_cc_opts )) - return (Just next_phase, dflags, maybe_loc, output_fn) + return (next_phase, dflags, maybe_loc, output_fn) -- ToDo: postprocess the output from gcc ----------------------------------------------------------------------------- -- Mangle phase -runPhase Mangle dflags _basename _suff input_fn get_output_fn maybe_loc +runPhase Mangle stop dflags _basename _suff input_fn get_output_fn maybe_loc = do let mangler_opts = getOpts dflags opt_m - machdep_opts <- if (prefixMatch "i386" cTARGETPLATFORM) - then do let n_regs = stolen_x86_regs dflags - return [ show n_regs ] - else return [] - split <- readIORef v_Split_object_files - let next_phase +#if i386_TARGET_ARCH + machdep_opts <- return [ show (stolen_x86_regs dflags) ] +#else + machdep_opts <- return [] +#endif + + let split = dopt Opt_SplitObjs dflags + next_phase | split = SplitMangle | otherwise = As output_fn <- get_output_fn next_phase maybe_loc @@ -767,15 +900,15 @@ runPhase Mangle dflags _basename _suff input_fn get_output_fn maybe_loc ] ++ map SysTools.Option machdep_opts) - return (Just next_phase, dflags, maybe_loc, output_fn) + return (next_phase, dflags, maybe_loc, output_fn) ----------------------------------------------------------------------------- -- Splitting phase -runPhase SplitMangle dflags _basename _suff input_fn get_output_fn maybe_loc +runPhase SplitMangle stop dflags _basename _suff input_fn get_output_fn maybe_loc = do -- tmp_pfx is the prefix used for the split .s files -- We also use it as the file to contain the no. of split .s files (sigh) - split_s_prefix <- SysTools.newTempName "split" + split_s_prefix <- SysTools.newTempName dflags "split" let n_files_fn = split_s_prefix SysTools.runSplit dflags @@ -793,17 +926,17 @@ runPhase SplitMangle dflags _basename _suff input_fn get_output_fn maybe_loc addFilesToClean [ split_s_prefix ++ "__" ++ show n ++ ".s" | n <- [1..n_files]] - return (Just SplitAs, dflags, maybe_loc, "**splitmangle**") + return (SplitAs, dflags, maybe_loc, "**splitmangle**") -- we don't use the filename ----------------------------------------------------------------------------- -- As phase -runPhase As dflags _basename _suff input_fn get_output_fn maybe_loc +runPhase As stop dflags _basename _suff input_fn get_output_fn maybe_loc = do let as_opts = getOpts dflags opt_a - cmdline_include_paths <- readIORef v_Include_paths + let cmdline_include_paths = includePaths dflags - output_fn <- get_output_fn Ln maybe_loc + output_fn <- get_output_fn StopLn maybe_loc -- we create directories for the object file, because it -- might be a hierarchical module. @@ -818,67 +951,67 @@ runPhase As dflags _basename _suff input_fn get_output_fn maybe_loc , SysTools.FileOption "" output_fn ]) - return (Just Ln, dflags, maybe_loc, output_fn) + return (StopLn, dflags, maybe_loc, output_fn) + + +runPhase SplitAs stop dflags basename _suff _input_fn get_output_fn maybe_loc + = do + output_fn <- get_output_fn StopLn maybe_loc + let (base_o, _) = splitFilename output_fn + split_odir = base_o ++ "_split" + osuf = objectSuf dflags -runPhase SplitAs dflags basename _suff _input_fn get_output_fn maybe_loc - = do let as_opts = getOpts dflags opt_a + createDirectoryHierarchy split_odir + + -- remove M_split/ *.o, because we're going to archive M_split/ *.o + -- later and we don't want to pick up any old objects. + fs <- getDirectoryContents split_odir + mapM_ removeFile $ map (split_odir `joinFileName`) + $ filter (osuf `isSuffixOf`) fs + + let as_opts = getOpts dflags opt_a (split_s_prefix, n) <- readIORef v_Split_info - odir <- readIORef v_Output_dir - let real_odir = case odir of - Nothing -> basename ++ "_split" - Just d -> d + let split_s n = split_s_prefix ++ "__" ++ show n `joinFileExt` "s" + split_obj n = split_odir `joinFileName` + filenameOf base_o ++ "__" ++ show n + `joinFileExt` osuf let assemble_file n - = do let input_s = split_s_prefix ++ "__" ++ show n ++ ".s" - let output_o = replaceFilenameDirectory - (basename ++ "__" ++ show n ++ ".o") - real_odir - real_o <- osuf_ify output_o - SysTools.runAs dflags - (map SysTools.Option as_opts ++ - [ SysTools.Option "-c" - , SysTools.Option "-o" - , SysTools.FileOption "" real_o - , SysTools.FileOption "" input_s - ]) + = SysTools.runAs dflags + (map SysTools.Option as_opts ++ + [ SysTools.Option "-c" + , SysTools.Option "-o" + , SysTools.FileOption "" (split_obj n) + , SysTools.FileOption "" (split_s n) + ]) mapM_ assemble_file [1..n] - output_fn <- get_output_fn Ln maybe_loc - return (Just Ln, dflags, maybe_loc, output_fn) - -#ifdef ILX ------------------------------------------------------------------------------ --- Ilx2Il phase --- Run ilx2il over the ILX output, getting an IL file - -runPhase Ilx2Il dflags _basename _suff input_fn get_output_fn maybe_loc - = do let ilx2il_opts = getOpts dflags opt_I - SysTools.runIlx2il (map SysTools.Option ilx2il_opts - ++ [ SysTools.Option "--no-add-suffix-to-assembly", - SysTools.Option "mscorlib", - SysTools.Option "-o", - SysTools.FileOption "" output_fn, - SysTools.FileOption "" input_fn ]) - return True + -- and join the split objects into a single object file: + let ld_r args = SysTools.runLink dflags ([ + SysTools.Option "-nostdlib", + SysTools.Option "-nodefaultlibs", + SysTools.Option "-Wl,-r", + SysTools.Option ld_x_flag, + SysTools.Option "-o", + SysTools.FileOption "" output_fn ] ++ args) + ld_x_flag | null cLD_X = "" + | otherwise = "-Wl,-x" + + if cLdIsGNULd == "YES" + then do + let script = split_odir `joinFileName` "ld.script" + writeFile script $ + "INPUT(" ++ unwords (map split_obj [1..n]) ++ ")" + ld_r [SysTools.FileOption "" script] + else do + ld_r (map (SysTools.FileOption "" . split_obj) [1..n]) + + return (StopLn, dflags, maybe_loc, output_fn) ------------------------------------------------------------------------------ --- Ilasm phase --- Run ilasm over the IL, getting a DLL - -runPhase Ilasm dflags _basename _suff input_fn get_output_fn maybe_loc - = do let ilasm_opts = getOpts dflags opt_i - SysTools.runIlasm (map SysTools.Option ilasm_opts - ++ [ SysTools.Option "/QUIET", - SysTools.Option "/DLL", - SysTools.FileOption "/OUT=" output_fn, - SysTools.FileOption "" input_fn ]) - return True - -#endif /* ILX */ ----------------------------------------------------------------------------- -- MoveBinary sort-of-phase @@ -1003,24 +1136,16 @@ getHCFilePackages filename = staticLink :: DynFlags -> [FilePath] -> [PackageId] -> IO () staticLink dflags o_files dep_packages = do let verb = getVerbFlag dflags - static <- readIORef v_Static - no_hs_main <- readIORef v_NoHsMain + output_fn = exeFileName dflags -- get the full list of packages to link with, by combining the -- explicit packages with the auto packages and all of their -- dependencies, and eliminating duplicates. - o_file <- readIORef v_Output_file -#if defined(mingw32_HOST_OS) - let output_fn = case o_file of { Just s -> s; Nothing -> "main.exe"; } -#else - let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; } -#endif - pkg_lib_paths <- getPackageLibraryPath dflags dep_packages let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths - lib_paths <- readIORef v_Library_paths + let lib_paths = libraryPaths dflags let lib_path_opts = map ("-L"++) lib_paths pkg_link_opts <- getPackageLinkOpts dflags dep_packages @@ -1029,14 +1154,14 @@ staticLink dflags o_files dep_packages = do pkg_framework_paths <- getPackageFrameworkPath dflags dep_packages let pkg_framework_path_opts = map ("-F"++) pkg_framework_paths - framework_paths <- readIORef v_Framework_paths - let framework_path_opts = map ("-F"++) framework_paths + let framework_paths = frameworkPaths dflags + framework_path_opts = map ("-F"++) framework_paths pkg_frameworks <- getPackageFrameworks dflags dep_packages let pkg_framework_opts = concat [ ["-framework", fw] | fw <- pkg_frameworks ] - - frameworks <- readIORef v_Cmdline_frameworks - let framework_opts = concat [ ["-framework", fw] | fw <- reverse frameworks ] + + let frameworks = cmdlineFrameworks dflags + framework_opts = concat [ ["-framework", fw] | fw <- reverse frameworks ] -- reverse because they're added in reverse order from the cmd line #endif @@ -1044,17 +1169,9 @@ staticLink dflags o_files dep_packages = do extra_ld_inputs <- readIORef v_Ld_inputs -- opts from -optl- (including -l options) - extra_ld_opts <- getStaticOpts v_Opt_l - - let pstate = pkgState dflags - rts_id | Just id <- rtsPackageId pstate = id - | otherwise = panic "staticLink: rts package missing" - base_id | Just id <- basePackageId pstate = id - | otherwise = panic "staticLink: base package missing" - rts_pkg = getPackageDetails pstate rts_id - base_pkg = getPackageDetails pstate base_id + let extra_ld_opts = getOpts dflags opt_l - ways <- readIORef v_Ways + let ways = wayNames dflags -- Here are some libs that need to be linked at the *end* of -- the command line, because they contain symbols that are referred to @@ -1078,12 +1195,7 @@ staticLink dflags o_files dep_packages = do ] | otherwise = [] - let extra_os = if static || no_hs_main - then [] - else [ head (libraryDirs rts_pkg) ++ "/Main.dll_o", - head (libraryDirs base_pkg) ++ "/PrelMain.dll_o" ] - - (md_c_flags, _) <- machdepCCOpts dflags + let (md_c_flags, _) = machdepCCOpts dflags SysTools.runLink dflags ( [ SysTools.Option verb , SysTools.Option "-o" @@ -1092,7 +1204,6 @@ staticLink dflags o_files dep_packages = do ++ map SysTools.Option ( md_c_flags ++ o_files - ++ extra_os ++ extra_ld_inputs ++ lib_path_opts ++ extra_ld_opts @@ -1111,28 +1222,44 @@ staticLink dflags o_files dep_packages = do )) -- parallel only: move binary to another dir -- HWL - ways_ <- readIORef v_Ways - when (WayPar `elem` ways_) + when (WayPar `elem` ways) (do success <- runPhase_MoveBinary output_fn if success then return () else throwDyn (InstallationError ("cannot move binary to PVM dir"))) + +exeFileName :: DynFlags -> FilePath +exeFileName dflags + | Just s <- outputFile dflags = +#if defined(mingw32_HOST_OS) + if null (suffixOf s) + then s `joinFileExt` "exe" + else s +#else + s +#endif + | otherwise = +#if defined(mingw32_HOST_OS) + "main.exe" +#else + "a.out" +#endif + ----------------------------------------------------------------------------- -- Making a DLL (only for Win32) doMkDLL :: DynFlags -> [String] -> [PackageId] -> IO () doMkDLL dflags o_files dep_packages = do let verb = getVerbFlag dflags - static <- readIORef v_Static - no_hs_main <- readIORef v_NoHsMain - - o_file <- readIORef v_Output_file + let static = opt_Static + let no_hs_main = dopt Opt_NoHsMain dflags + let o_file = outputFile dflags let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; } pkg_lib_paths <- getPackageLibraryPath dflags dep_packages let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths - lib_paths <- readIORef v_Library_paths + let lib_paths = libraryPaths dflags let lib_path_opts = map ("-L"++) lib_paths pkg_link_opts <- getPackageLinkOpts dflags dep_packages @@ -1141,12 +1268,12 @@ doMkDLL dflags o_files dep_packages = do extra_ld_inputs <- readIORef v_Ld_inputs -- opts from -optdll- - extra_ld_opts <- getStaticOpts v_Opt_dll + let extra_ld_opts = getOpts dflags opt_dll let pstate = pkgState dflags - rts_id | Just id <- rtsPackageId pstate = id + rts_id | ExtPackage id <- rtsPackageId pstate = id | otherwise = panic "staticLink: rts package missing" - base_id | Just id <- basePackageId pstate = id + base_id | ExtPackage id <- basePackageId pstate = id | otherwise = panic "staticLink: base package missing" rts_pkg = getPackageDetails pstate rts_id base_pkg = getPackageDetails pstate base_id @@ -1156,7 +1283,7 @@ doMkDLL dflags o_files dep_packages = do else [ head (libraryDirs rts_pkg) ++ "/Main.dll_o", head (libraryDirs base_pkg) ++ "/PrelMain.dll_o" ] - (md_c_flags, _) <- machdepCCOpts dflags + let (md_c_flags, _) = machdepCCOpts dflags SysTools.runMkDLL dflags ([ SysTools.Option verb , SysTools.Option "-o" @@ -1178,13 +1305,12 @@ doMkDLL dflags o_files dep_packages = do )) -- ----------------------------------------------------------------------------- --- Misc. +-- Running CPP doCpp :: DynFlags -> Bool -> Bool -> FilePath -> FilePath -> IO () doCpp dflags raw include_cc_opts input_fn output_fn = do let hscpp_opts = getOpts dflags opt_P - - cmdline_include_paths <- readIORef v_Include_paths + let cmdline_include_paths = includePaths dflags pkg_include_dirs <- getPackageIncludePath dflags [] let include_paths = foldr (\ x xs -> "-I" : x : xs) [] @@ -1192,18 +1318,23 @@ doCpp dflags raw include_cc_opts input_fn output_fn = do let verb = getVerbFlag dflags - cc_opts <- if not include_cc_opts - then return [] - else do let optc = getOpts dflags opt_c - (md_c_flags, _) <- machdepCCOpts dflags - return (optc ++ md_c_flags) + let cc_opts + | not include_cc_opts = [] + | otherwise = (optc ++ md_c_flags) + where + optc = getOpts dflags opt_c + (md_c_flags, _) = machdepCCOpts dflags let cpp_prog args | raw = SysTools.runCpp dflags args | otherwise = SysTools.runCc dflags (SysTools.Option "-E" : args) let target_defs = - [ "-D" ++ cTARGETOS ++ "_TARGET_OS=1", - "-D" ++ cTARGETARCH ++ "_TARGET_ARCH=1" ] + [ "-D" ++ HOST_OS ++ "_BUILD_OS=1", + "-D" ++ HOST_ARCH ++ "_BUILD_ARCH=1", + "-D" ++ TARGET_OS ++ "_HOST_OS=1", + "-D" ++ TARGET_ARCH ++ "_HOST_ARCH=1" ] + -- remember, in code we *compile*, the HOST is the same our TARGET, + -- and BUILD is the same as our HOST. cpp_prog ([SysTools.Option verb] ++ map SysTools.Option include_paths @@ -1226,30 +1357,48 @@ doCpp dflags raw include_cc_opts input_fn output_fn = do , SysTools.FileOption "" output_fn ]) +cHaskell1Version = "5" -- i.e., Haskell 98 + +-- Default CPP defines in Haskell source +hsSourceCppOpts = + [ "-D__HASKELL1__="++cHaskell1Version + , "-D__GLASGOW_HASKELL__="++cProjectVersionInt + , "-D__HASKELL98__" + , "-D__CONCURRENT_HASKELL__" + ] + + -- ----------------------------------------------------------------------------- -- Misc. -hscNextPhase :: HscLang -> IO Phase -hscNextPhase hsc_lang = do - split <- readIORef v_Split_object_files - return (case hsc_lang of - HscC -> HCc - HscAsm | split -> SplitMangle - | otherwise -> As - HscNothing -> HCc -- dummy (no output will be generated) - HscInterpreted -> HCc -- "" "" - _other -> HCc -- "" "" - ) - -hscMaybeAdjustLang :: HscLang -> IO HscLang -hscMaybeAdjustLang current_hsc_lang = do - todo <- readIORef v_GhcMode - keep_hc <- readIORef v_Keep_hc_files - let hsc_lang - -- don't change the lang if we're interpreting - | current_hsc_lang == HscInterpreted = current_hsc_lang - -- force -fvia-C if we are being asked for a .hc file - | todo == StopBefore HCc || keep_hc = HscC - -- otherwise, stick to the plan - | otherwise = current_hsc_lang - return hsc_lang +hscNextPhase :: DynFlags -> HscSource -> HscTarget -> Phase +hscNextPhase dflags HsBootFile hsc_lang = StopLn +hscNextPhase dflags other hsc_lang = + case hsc_lang of + HscC -> HCc + HscAsm | dopt Opt_SplitObjs dflags -> SplitMangle + | otherwise -> As + HscNothing -> StopLn + HscInterpreted -> StopLn + _other -> StopLn + + +hscMaybeAdjustTarget :: DynFlags -> Phase -> HscSource -> HscTarget -> HscTarget +hscMaybeAdjustTarget dflags stop HsBootFile current_hsc_lang + = HscNothing -- No output (other than Foo.hi-boot) for hs-boot files +hscMaybeAdjustTarget dflags stop other current_hsc_lang + = hsc_lang + where + keep_hc = dopt Opt_KeepHcFiles dflags + hsc_lang + -- don't change the lang if we're interpreting + | current_hsc_lang == HscInterpreted = current_hsc_lang + + -- force -fvia-C if we are being asked for a .hc file + | HCc <- stop = HscC + | keep_hc = HscC + -- otherwise, stick to the plan + | otherwise = current_hsc_lang + +GLOBAL_VAR(v_Split_info, ("",0), (String,Int)) + -- The split prefix and number of files