1 -----------------------------------------------------------------------------
5 -- (c) The University of Glasgow 2005
7 -----------------------------------------------------------------------------
9 module DriverPipeline (
10 -- Run a series of compilation steps in a pipeline, for a
11 -- collection of source files.
14 -- Interfaces for the batch-mode driver
17 -- Interfaces for the compilation manager (interpreted/batch-mode)
19 compile, CompResult(..),
27 #include "HsVersions.h"
33 import qualified SysTools
39 import UniqFM ( eltsUFM )
42 import StaticFlags ( v_Ld_inputs, opt_Static, WayName(..) )
46 import StringBuffer ( hGetStringBuffer )
47 import BasicTypes ( SuccessFlag(..) )
48 import Maybes ( expectJust )
49 import ParserCoreUtils ( getCoreModuleName )
50 import SrcLoc ( unLoc )
51 import SrcLoc ( Located(..) )
53 import Control.Exception as Exception
54 import Data.IORef ( readIORef, writeIORef, IORef )
55 import GHC.Exts ( Int(..) )
56 import System.Directory
58 import SYSTEM_IO_ERROR as IO
60 import Data.List ( isSuffixOf )
64 import System.Environment
66 -- ---------------------------------------------------------------------------
69 -- Just preprocess a file, put the result in a temp. file (used by the
70 -- compilation manager during the summary phase).
72 -- We return the augmented DynFlags, because they contain the result
73 -- of slurping in the OPTIONS pragmas
75 preprocess :: DynFlags -> (FilePath, Maybe Phase) -> IO (DynFlags, FilePath)
76 preprocess dflags (filename, mb_phase) =
77 ASSERT2(isJust mb_phase || isHaskellSrcFilename filename, text filename)
78 runPipeline anyHsc dflags (filename, mb_phase) Temporary Nothing{-no ModLocation-}
80 -- ---------------------------------------------------------------------------
83 -- Compile a single module, under the control of the compilation manager.
85 -- This is the interface between the compilation manager and the
86 -- compiler proper (hsc), where we deal with tedious details like
87 -- reading the OPTIONS pragma from the source file, and passing the
88 -- output of hsc through the C compiler.
90 -- NB. No old interface can also mean that the source has changed.
94 -> Maybe Linkable -- Just linkable <=> source unchanged
95 -> Maybe ModIface -- Old interface, if available
100 = CompOK ModDetails -- New details
101 ModIface -- New iface
102 (Maybe Linkable) -- a Maybe, for the same reasons as hm_linkable
107 compile hsc_env mod_summary maybe_old_linkable old_iface mod_index nmods = do
109 let dflags0 = ms_hspp_opts mod_summary
110 this_mod = ms_mod mod_summary
111 src_flavour = ms_hsc_src mod_summary
114 | Just l <- maybe_old_linkable, isObjectLinkable l = True
117 -- FIXME: We need to know whether or not we're recompiling the file. Move this to HscMain?
118 --showPass dflags0 ("Compiling " ++ showModMsg have_object mod_summary)
120 let location = ms_location mod_summary
121 let input_fn = expectJust "compile:hs" (ml_hs_file location)
122 let input_fnpp = ms_hspp_file mod_summary
124 debugTraceMsg dflags0 2 (text "compile: input file" <+> text input_fnpp)
126 let (basename, _) = splitFilename input_fn
128 -- We add the directory in which the .hs files resides) to the import path.
129 -- This is needed when we try to compile the .hc file later, if it
130 -- imports a _stub.h file that we created here.
131 let current_dir = directoryOf basename
132 old_paths = includePaths dflags0
133 dflags = dflags0 { includePaths = current_dir : old_paths }
135 -- Figure out what lang we're generating
136 let hsc_lang = hscMaybeAdjustTarget dflags StopLn src_flavour (hscTarget dflags)
137 -- ... and what the next phase should be
138 let next_phase = hscNextPhase dflags src_flavour hsc_lang
139 -- ... and what file to generate the output into
140 output_fn <- getOutputFilename next_phase
141 Temporary basename dflags next_phase (Just location)
143 let dflags' = dflags { hscTarget = hsc_lang,
144 hscOutName = output_fn,
145 extCoreName = basename ++ ".hcr" }
147 -- -no-recomp should also work with --make
148 let force_recomp = dopt Opt_ForceRecomp dflags
149 source_unchanged = isJust maybe_old_linkable && not force_recomp
150 hsc_env' = hsc_env { hsc_dflags = dflags' }
151 object_filename = ml_obj_file location
153 let getStubLinkable False = return []
155 = do stub_o <- compileStub dflags' this_mod location
156 return [ DotO stub_o ]
158 handleBatch (HscNoRecomp, iface, details)
159 = ASSERT (isJust maybe_old_linkable)
160 return (CompOK details iface maybe_old_linkable)
161 handleBatch (HscRecomp hasStub, iface, details)
162 | isHsBoot src_flavour
163 = return (CompOK details iface Nothing)
165 = do stub_unlinked <- getStubLinkable hasStub
166 (hs_unlinked, unlinked_time) <-
169 -> return ([], ms_hs_date mod_summary)
170 -- We're in --make mode: finish the compilation pipeline.
172 -> do runPipeline StopLn dflags (output_fn,Nothing) Persistent
174 -- The object filename comes from the ModLocation
175 o_time <- getModificationTime object_filename
176 return ([DotO object_filename], o_time)
177 let linkable = LM unlinked_time this_mod
178 (hs_unlinked ++ stub_unlinked)
179 return (CompOK details iface (Just linkable))
181 handleInterpreted (InteractiveNoRecomp, iface, details)
182 = ASSERT (isJust maybe_old_linkable)
183 return (CompOK details iface maybe_old_linkable)
184 handleInterpreted (InteractiveRecomp hasStub comp_bc, iface, details)
185 = do stub_unlinked <- getStubLinkable hasStub
186 let hs_unlinked = [BCOs comp_bc]
187 unlinked_time = ms_hs_date mod_summary
188 -- Why do we use the timestamp of the source file here,
189 -- rather than the current time? This works better in
190 -- the case where the local clock is out of sync
191 -- with the filesystem's clock. It's just as accurate:
192 -- if the source is modified, then the linkable will
194 let linkable = LM unlinked_time this_mod
195 (hs_unlinked ++ stub_unlinked)
196 return (CompOK details iface (Just linkable))
198 let runCompiler compiler handle
199 = do mbResult <- compiler hsc_env' mod_summary
200 source_unchanged old_iface
201 (Just (mod_index, nmods))
203 Nothing -> return CompErrs
204 Just result -> handle result
207 HscInterpreted | not (isHsBoot src_flavour) -- We can't compile boot files to
208 -- bytecode so don't even try.
209 -> runCompiler hscCompileInteractive handleInterpreted
211 -> runCompiler hscCompileNothing handleBatch
213 -> runCompiler hscCompileBatch handleBatch
215 -----------------------------------------------------------------------------
216 -- stub .h and .c files (for foreign export support)
218 -- The _stub.c file is derived from the haskell source file, possibly taking
219 -- into account the -stubdir option.
221 -- Consequently, we derive the _stub.o filename from the haskell object
224 -- This isn't necessarily the same as the object filename we
225 -- would get if we just compiled the _stub.c file using the pipeline.
228 -- ghc src/A.hs -odir obj
230 -- results in obj/A.o, and src/A_stub.c. If we compile src/A_stub.c with
231 -- -odir obj, we would get obj/src/A_stub.o, which is wrong; we want
234 compileStub :: DynFlags -> Module -> ModLocation -> IO FilePath
235 compileStub dflags mod location = do
236 let (o_base, o_ext) = splitFilename (ml_obj_file location)
237 stub_o = o_base ++ "_stub" `joinFileExt` o_ext
239 -- compile the _stub.c file w/ gcc
240 let (stub_c,_) = mkStubPaths dflags (moduleName mod) location
241 runPipeline StopLn dflags (stub_c,Nothing)
242 (SpecificFile stub_o) Nothing{-no ModLocation-}
247 -- ---------------------------------------------------------------------------
250 link :: GhcMode -- interactive or batch
251 -> DynFlags -- dynamic flags
252 -> Bool -- attempt linking in batch mode?
253 -> HomePackageTable -- what to link
256 -- For the moment, in the batch linker, we don't bother to tell doLink
257 -- which packages to link -- it just tries all that are available.
258 -- batch_attempt_linking should only be *looked at* in batch mode. It
259 -- should only be True if the upsweep was successful and someone
260 -- exports main, i.e., we have good reason to believe that linking
264 link Interactive dflags batch_attempt_linking hpt
265 = do -- Not Linking...(demand linker will do the job)
269 link JustTypecheck dflags batch_attempt_linking hpt
272 link BatchCompile dflags batch_attempt_linking hpt
273 | batch_attempt_linking
276 home_mod_infos = eltsUFM hpt
278 -- the packages we depend on
279 pkg_deps = concatMap (dep_pkgs . mi_deps . hm_iface) home_mod_infos
281 -- the linkables to link
282 linkables = map (expectJust "link".hm_linkable) home_mod_infos
284 debugTraceMsg dflags 3 (text "link: linkables are ..." $$ vcat (map ppr linkables))
286 -- check for the -no-link flag
287 if isNoLink (ghcLink dflags)
288 then do debugTraceMsg dflags 3 (text "link(batch): linking omitted (-c flag given).")
292 let getOfiles (LM _ _ us) = map nameOfObject (filter isObject us)
293 obj_files = concatMap getOfiles linkables
295 exe_file = exeFileName dflags
297 -- if the modification time on the executable is later than the
298 -- modification times on all of the objects, then omit linking
299 -- (unless the -no-recomp flag was given).
300 e_exe_time <- IO.try $ getModificationTime exe_file
302 | Left _ <- e_exe_time = True
303 | Right t <- e_exe_time =
304 any (t <) (map linkableTime linkables)
306 if not (dopt Opt_ForceRecomp dflags) && not linking_needed
307 then do debugTraceMsg dflags 2 (text exe_file <+> ptext SLIT("is up to date, linking not required."))
311 debugTraceMsg dflags 1 (ptext SLIT("Linking") <+> text exe_file
314 -- Don't showPass in Batch mode; doLink will do that for us.
315 let link = case ghcLink dflags of
317 StaticLink -> staticLink
318 link dflags obj_files pkg_deps
320 debugTraceMsg dflags 3 (text "link: done")
322 -- staticLink only returns if it succeeds
326 = do debugTraceMsg dflags 3 (text "link(batch): upsweep (partially) failed OR" $$
327 text " Main.main not exported; not linking.")
331 -- -----------------------------------------------------------------------------
332 -- Compile files in one-shot mode.
334 oneShot :: DynFlags -> Phase -> [(String, Maybe Phase)] -> IO ()
335 oneShot dflags stop_phase srcs = do
336 o_files <- mapM (compileFile dflags stop_phase) srcs
337 doLink dflags stop_phase o_files
339 compileFile :: DynFlags -> Phase -> (FilePath, Maybe Phase) -> IO FilePath
340 compileFile dflags stop_phase (src, mb_phase) = do
341 exists <- doesFileExist src
343 throwDyn (CmdLineError ("does not exist: " ++ src))
346 split = dopt Opt_SplitObjs dflags
347 mb_o_file = outputFile dflags
348 ghc_link = ghcLink dflags -- Set by -c or -no-link
350 -- When linking, the -o argument refers to the linker's output.
351 -- otherwise, we use it as the name for the pipeline's output.
353 | StopLn <- stop_phase, not (isNoLink ghc_link) = Persistent
354 -- -o foo applies to linker
355 | Just o_file <- mb_o_file = SpecificFile o_file
356 -- -o foo applies to the file we are compiling now
357 | otherwise = Persistent
359 stop_phase' = case stop_phase of
360 As | split -> SplitAs
363 (_, out_file) <- runPipeline stop_phase' dflags
364 (src, mb_phase) output Nothing{-no ModLocation-}
368 doLink :: DynFlags -> Phase -> [FilePath] -> IO ()
369 doLink dflags stop_phase o_files
370 | not (isStopLn stop_phase)
371 = return () -- We stopped before the linking phase
374 = case ghcLink dflags of
376 StaticLink -> staticLink dflags o_files link_pkgs
377 MkDLL -> doMkDLL dflags o_files link_pkgs
379 -- Always link in the haskell98 package for static linking. Other
380 -- packages have to be specified via the -package flag.
381 link_pkgs = [haskell98PackageId]
384 -- ---------------------------------------------------------------------------
385 -- Run a compilation pipeline, consisting of multiple phases.
387 -- This is the interface to the compilation pipeline, which runs
388 -- a series of compilation steps on a single source file, specifying
389 -- at which stage to stop.
391 -- The DynFlags can be modified by phases in the pipeline (eg. by
392 -- GHC_OPTIONS pragmas), and the changes affect later phases in the
397 -- output should be to a temporary file: we're going to
398 -- run more compilation steps on this output later
400 -- we want a persistent file, i.e. a file in the current directory
401 -- derived from the input filename, but with the appropriate extension.
402 -- eg. in "ghc -c Foo.hs" the output goes into ./Foo.o.
403 | SpecificFile FilePath
404 -- the output must go into the specified file.
407 :: Phase -- When to stop
408 -> DynFlags -- Dynamic flags
409 -> (FilePath,Maybe Phase) -- Input filename (and maybe -x suffix)
410 -> PipelineOutput -- Output filename
411 -> Maybe ModLocation -- A ModLocation, if this is a Haskell module
412 -> IO (DynFlags, FilePath) -- (final flags, output filename)
414 runPipeline stop_phase dflags (input_fn, mb_phase) output maybe_loc
416 let (basename, suffix) = splitFilename input_fn
418 -- If we were given a -x flag, then use that phase to start from
419 start_phase = fromMaybe (startPhase suffix) mb_phase
421 -- We want to catch cases of "you can't get there from here" before
422 -- we start the pipeline, because otherwise it will just run off the
425 -- There is a partial ordering on phases, where A < B iff A occurs
426 -- before B in a normal compilation pipeline.
428 when (not (start_phase `happensBefore` stop_phase)) $
430 ("cannot compile this file to desired target: "
433 -- this is a function which will be used to calculate output file names
434 -- as we go along (we partially apply it to some of its inputs here)
435 let get_output_fn = getOutputFilename stop_phase output basename
437 -- Execute the pipeline...
438 (dflags', output_fn, maybe_loc) <-
439 pipeLoop dflags start_phase stop_phase input_fn
440 basename suffix get_output_fn maybe_loc
442 -- Sometimes, a compilation phase doesn't actually generate any output
443 -- (eg. the CPP phase when -fcpp is not turned on). If we end on this
444 -- stage, but we wanted to keep the output, then we have to explicitly
445 -- copy the file, remembering to prepend a {-# LINE #-} pragma so that
446 -- further compilation stages can tell what the original filename was.
449 return (dflags', output_fn)
451 do final_fn <- get_output_fn dflags' stop_phase maybe_loc
452 when (final_fn /= output_fn) $ do
453 let msg = ("Copying `" ++ output_fn ++"' to `" ++ final_fn ++ "'")
454 line_prag = Just ("{-# LINE 1 \"" ++ input_fn ++ "\" #-}\n")
455 copyWithHeader dflags msg line_prag output_fn final_fn
456 return (dflags', final_fn)
460 pipeLoop :: DynFlags -> Phase -> Phase
461 -> FilePath -> String -> Suffix
462 -> (DynFlags -> Phase -> Maybe ModLocation -> IO FilePath)
464 -> IO (DynFlags, FilePath, Maybe ModLocation)
466 pipeLoop dflags phase stop_phase
467 input_fn orig_basename orig_suff
468 orig_get_output_fn maybe_loc
470 | phase `eqPhase` stop_phase -- All done
471 = return (dflags, input_fn, maybe_loc)
473 | not (phase `happensBefore` stop_phase)
474 -- Something has gone wrong. We'll try to cover all the cases when
475 -- this could happen, so if we reach here it is a panic.
476 -- eg. it might happen if the -C flag is used on a source file that
477 -- has {-# OPTIONS -fasm #-}.
478 = panic ("pipeLoop: at phase " ++ show phase ++
479 " but I wanted to stop at phase " ++ show stop_phase)
482 = do { (next_phase, dflags', maybe_loc, output_fn)
483 <- runPhase phase stop_phase dflags orig_basename
484 orig_suff input_fn orig_get_output_fn maybe_loc
485 ; pipeLoop dflags' next_phase stop_phase output_fn
486 orig_basename orig_suff orig_get_output_fn maybe_loc }
489 :: Phase -> PipelineOutput -> String
490 -> DynFlags -> Phase{-next phase-} -> Maybe ModLocation -> IO FilePath
491 getOutputFilename stop_phase output basename
494 func dflags next_phase maybe_location
495 | is_last_phase, Persistent <- output = persistent_fn
496 | is_last_phase, SpecificFile f <- output = return f
497 | keep_this_output = persistent_fn
498 | otherwise = newTempName dflags suffix
501 odir = objectDir dflags
502 osuf = objectSuf dflags
503 keep_hc = dopt Opt_KeepHcFiles dflags
504 keep_raw_s = dopt Opt_KeepRawSFiles dflags
505 keep_s = dopt Opt_KeepSFiles dflags
507 myPhaseInputExt HCc = hcsuf
508 myPhaseInputExt StopLn = osuf
509 myPhaseInputExt other = phaseInputExt other
511 is_last_phase = next_phase `eqPhase` stop_phase
513 -- sometimes, we keep output from intermediate stages
517 Mangle | keep_raw_s -> True
519 HCc | keep_hc -> True
522 suffix = myPhaseInputExt next_phase
524 -- persistent object files get put in odir
526 | StopLn <- next_phase = return odir_persistent
527 | otherwise = return persistent
529 persistent = basename `joinFileExt` suffix
532 | Just loc <- maybe_location = ml_obj_file loc
533 | Just d <- odir = d `joinFileName` persistent
534 | otherwise = persistent
537 -- -----------------------------------------------------------------------------
538 -- Each phase in the pipeline returns the next phase to execute, and the
539 -- name of the file in which the output was placed.
541 -- We must do things dynamically this way, because we often don't know
542 -- what the rest of the phases will be until part-way through the
543 -- compilation: for example, an {-# OPTIONS -fasm #-} at the beginning
544 -- of a source file can change the latter stages of the pipeline from
545 -- taking the via-C route to using the native code generator.
547 runPhase :: Phase -- Do this phase first
548 -> Phase -- Stop just before this phase
550 -> String -- basename of original input source
551 -> String -- its extension
552 -> FilePath -- name of file which contains the input to this phase.
553 -> (DynFlags -> Phase -> Maybe ModLocation -> IO FilePath)
554 -- how to calculate the output filename
555 -> Maybe ModLocation -- the ModLocation, if we have one
556 -> IO (Phase, -- next phase
557 DynFlags, -- new dynamic flags
558 Maybe ModLocation, -- the ModLocation, if we have one
559 FilePath) -- output filename
561 -- Invariant: the output filename always contains the output
562 -- Interesting case: Hsc when there is no recompilation to do
563 -- Then the output filename is still a .o file
565 -------------------------------------------------------------------------------
568 runPhase (Unlit sf) _stop dflags _basename _suff input_fn get_output_fn maybe_loc
569 = do let unlit_flags = getOpts dflags opt_L
570 -- The -h option passes the file name for unlit to put in a #line directive
571 output_fn <- get_output_fn dflags (Cpp sf) maybe_loc
573 SysTools.runUnlit dflags
574 (map SysTools.Option unlit_flags ++
575 [ SysTools.Option "-h"
576 , SysTools.Option input_fn
577 , SysTools.FileOption "" input_fn
578 , SysTools.FileOption "" output_fn
581 return (Cpp sf, dflags, maybe_loc, output_fn)
583 -------------------------------------------------------------------------------
584 -- Cpp phase : (a) gets OPTIONS out of file
585 -- (b) runs cpp if necessary
587 runPhase (Cpp sf) _stop dflags0 basename suff input_fn get_output_fn maybe_loc
588 = do src_opts <- getOptionsFromFile input_fn
589 (dflags,unhandled_flags) <- parseDynamicFlags dflags0 (map unLoc src_opts)
590 checkProcessArgsResult unhandled_flags (basename `joinFileExt` suff)
592 if not (dopt Opt_Cpp dflags) then
593 -- no need to preprocess CPP, just pass input file along
594 -- to the next phase of the pipeline.
595 return (HsPp sf, dflags, maybe_loc, input_fn)
597 output_fn <- get_output_fn dflags (HsPp sf) maybe_loc
598 doCpp dflags True{-raw-} False{-no CC opts-} input_fn output_fn
599 return (HsPp sf, dflags, maybe_loc, output_fn)
601 -------------------------------------------------------------------------------
604 runPhase (HsPp sf) _stop dflags basename suff input_fn get_output_fn maybe_loc
605 = do if not (dopt Opt_Pp dflags) then
606 -- no need to preprocess, just pass input file along
607 -- to the next phase of the pipeline.
608 return (Hsc sf, dflags, maybe_loc, input_fn)
610 let hspp_opts = getOpts dflags opt_F
611 let orig_fn = basename `joinFileExt` suff
612 output_fn <- get_output_fn dflags (Hsc sf) maybe_loc
613 SysTools.runPp dflags
614 ( [ SysTools.Option orig_fn
615 , SysTools.Option input_fn
616 , SysTools.FileOption "" output_fn
618 map SysTools.Option hspp_opts
620 return (Hsc sf, dflags, maybe_loc, output_fn)
622 -----------------------------------------------------------------------------
625 -- Compilation of a single module, in "legacy" mode (_not_ under
626 -- the direction of the compilation manager).
627 runPhase (Hsc src_flavour) stop dflags0 basename suff input_fn get_output_fn _maybe_loc
628 = do -- normal Hsc mode, not mkdependHS
630 -- we add the current directory (i.e. the directory in which
631 -- the .hs files resides) to the import path, since this is
632 -- what gcc does, and it's probably what you want.
633 let current_dir = directoryOf basename
635 paths = includePaths dflags0
636 dflags = dflags0 { includePaths = current_dir : paths }
638 -- gather the imports and module name
639 (hspp_buf,mod_name) <-
641 ExtCoreFile -> do { -- no explicit imports in ExtCore input.
642 ; m <- getCoreModuleName input_fn
643 ; return (Nothing, mkModuleName m) }
645 other -> do { buf <- hGetStringBuffer input_fn
646 ; (_,_,L _ mod_name) <- getImports dflags buf input_fn
647 ; return (Just buf, mod_name) }
649 -- Build a ModLocation to pass to hscMain.
650 -- The source filename is rather irrelevant by now, but it's used
651 -- by hscMain for messages. hscMain also needs
652 -- the .hi and .o filenames, and this is as good a way
653 -- as any to generate them, and better than most. (e.g. takes
654 -- into accout the -osuf flags)
655 location1 <- mkHomeModLocation2 dflags mod_name basename suff
657 -- Boot-ify it if necessary
658 let location2 | isHsBoot src_flavour = addBootSuffixLocn location1
659 | otherwise = location1
662 -- Take -ohi into account if present
663 -- This can't be done in mkHomeModuleLocation because
664 -- it only applies to the module being compiles
665 let ohi = outputHi dflags
666 location3 | Just fn <- ohi = location2{ ml_hi_file = fn }
667 | otherwise = location2
669 -- Take -o into account if present
670 -- Very like -ohi, but we must *only* do this if we aren't linking
671 -- (If we're linking then the -o applies to the linked thing, not to
672 -- the object file for one module.)
673 -- Note the nasty duplication with the same computation in compileFile above
674 let expl_o_file = outputFile dflags
675 location4 | Just ofile <- expl_o_file
676 , isNoLink (ghcLink dflags)
677 = location3 { ml_obj_file = ofile }
678 | otherwise = location3
680 o_file = ml_obj_file location4 -- The real object file
683 -- Figure out if the source has changed, for recompilation avoidance.
685 -- Setting source_unchanged to True means that M.o seems
686 -- to be up to date wrt M.hs; so no need to recompile unless imports have
687 -- changed (which the compiler itself figures out).
688 -- Setting source_unchanged to False tells the compiler that M.o is out of
689 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
690 src_timestamp <- getModificationTime (basename `joinFileExt` suff)
692 let force_recomp = dopt Opt_ForceRecomp dflags
694 if force_recomp || not (isStopLn stop)
695 -- Set source_unchanged to False unconditionally if
696 -- (a) recompilation checker is off, or
697 -- (b) we aren't going all the way to .o file (e.g. ghc -S)
699 -- Otherwise look at file modification dates
700 else do o_file_exists <- doesFileExist o_file
702 then return False -- Need to recompile
703 else do t2 <- getModificationTime o_file
704 if t2 > src_timestamp
709 let hsc_lang = hscMaybeAdjustTarget dflags stop src_flavour (hscTarget dflags)
710 let next_phase = hscNextPhase dflags src_flavour hsc_lang
711 output_fn <- get_output_fn dflags next_phase (Just location4)
713 let dflags' = dflags { hscTarget = hsc_lang,
714 hscOutName = output_fn,
715 extCoreName = basename ++ ".hcr" }
717 hsc_env <- newHscEnv dflags'
719 -- Tell the finder cache about this module
720 mod <- addHomeModuleToFinder hsc_env mod_name location4
722 -- Make the ModSummary to hand to hscMain
724 unused_field = panic "runPhase:ModSummary field"
725 -- Some fields are not looked at by hscMain
726 mod_summary = ModSummary { ms_mod = mod,
727 ms_hsc_src = src_flavour,
728 ms_hspp_file = input_fn,
729 ms_hspp_opts = dflags,
730 ms_hspp_buf = hspp_buf,
731 ms_location = location4,
732 ms_hs_date = src_timestamp,
733 ms_obj_date = Nothing,
734 ms_imps = unused_field,
735 ms_srcimps = unused_field }
738 mbResult <- hscCompileOneShot hsc_env
739 mod_summary source_unchanged
741 Nothing -- No "module i of n" progress info
744 Nothing -> throwDyn (PhaseFailed "hsc" (ExitFailure 1))
746 -> do SysTools.touch dflags' "Touching object file" o_file
747 -- The .o file must have a later modification date
748 -- than the source file (else we wouldn't be in HscNoRecomp)
749 -- but we touch it anyway, to keep 'make' happy (we think).
750 return (StopLn, dflags', Just location4, o_file)
751 Just (HscRecomp hasStub)
753 do stub_o <- compileStub dflags' mod location4
754 consIORef v_Ld_inputs stub_o
755 -- In the case of hs-boot files, generate a dummy .o-boot
756 -- stamp file for the benefit of Make
757 when (isHsBoot src_flavour) $
758 SysTools.touch dflags' "Touching object file" o_file
759 return (next_phase, dflags', Just location4, output_fn)
761 -----------------------------------------------------------------------------
764 runPhase CmmCpp stop dflags basename suff input_fn get_output_fn maybe_loc
766 output_fn <- get_output_fn dflags Cmm maybe_loc
767 doCpp dflags False{-not raw-} True{-include CC opts-} input_fn output_fn
768 return (Cmm, dflags, maybe_loc, output_fn)
770 runPhase Cmm stop dflags basename suff input_fn get_output_fn maybe_loc
772 let hsc_lang = hscMaybeAdjustTarget dflags stop HsSrcFile (hscTarget dflags)
773 let next_phase = hscNextPhase dflags HsSrcFile hsc_lang
774 output_fn <- get_output_fn dflags next_phase maybe_loc
776 let dflags' = dflags { hscTarget = hsc_lang,
777 hscOutName = output_fn,
778 extCoreName = basename ++ ".hcr" }
780 ok <- hscCmmFile dflags' input_fn
782 when (not ok) $ throwDyn (PhaseFailed "cmm" (ExitFailure 1))
784 return (next_phase, dflags, maybe_loc, output_fn)
786 -----------------------------------------------------------------------------
789 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
790 -- way too many hacks, and I can't say I've ever used it anyway.
792 runPhase cc_phase stop dflags basename suff input_fn get_output_fn maybe_loc
793 | cc_phase `eqPhase` Cc || cc_phase `eqPhase` Ccpp || cc_phase `eqPhase` HCc
794 = do let cc_opts = getOpts dflags opt_c
795 hcc = cc_phase `eqPhase` HCc
797 let cmdline_include_paths = includePaths dflags
799 -- HC files have the dependent packages stamped into them
800 pkgs <- if hcc then getHCFilePackages input_fn else return []
802 -- add package include paths even if we're just compiling .c
803 -- files; this is the Value Add(TM) that using ghc instead of
805 pkg_include_dirs <- getPackageIncludePath dflags pkgs
806 let include_paths = foldr (\ x xs -> "-I" : x : xs) []
807 (cmdline_include_paths ++ pkg_include_dirs)
809 let (md_c_flags, md_regd_c_flags) = machdepCCOpts dflags
810 let pic_c_flags = picCCOpts dflags
812 let verb = getVerbFlag dflags
814 pkg_extra_cc_opts <- getPackageExtraCcOpts dflags pkgs
816 let split_objs = dopt Opt_SplitObjs dflags
817 split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
820 let excessPrecision = dopt Opt_ExcessPrecision dflags
822 let cc_opt | optLevel dflags >= 2 = "-O2"
827 let mangle = dopt Opt_DoAsmMangling dflags
829 | hcc && mangle = Mangle
831 output_fn <- get_output_fn dflags next_phase maybe_loc
836 -- on x86 the floating point regs have greater precision
837 -- than a double, which leads to unpredictable results.
838 -- By default, we turn this off with -ffloat-store unless
839 -- the user specified -fexcess-precision.
840 (if excessPrecision then [] else [ "-ffloat-store" ]) ++
842 -- gcc's -fstrict-aliasing allows two accesses to memory
843 -- to be considered non-aliasing if they have different types.
844 -- This interacts badly with the C code we generate, which is
845 -- very weakly typed, being derived from C--.
846 ["-fno-strict-aliasing"]
850 SysTools.runCc dflags (
851 -- force the C compiler to interpret this file as C when
852 -- compiling .hc files, by adding the -x c option.
853 -- Also useful for plain .c files, just in case GHC saw a
855 [ SysTools.Option "-x", if cc_phase `eqPhase` Ccpp
856 then SysTools.Option "c++" else SysTools.Option "c"] ++
857 [ SysTools.FileOption "" input_fn
858 , SysTools.Option "-o"
859 , SysTools.FileOption "" output_fn
861 ++ map SysTools.Option (
864 #ifdef sparc_TARGET_ARCH
865 -- We only support SparcV9 and better because V8 lacks an atomic CAS
866 -- instruction. Note that the user can still override this
867 -- (e.g., -mcpu=ultrasparc) as GCC picks the "best" -mcpu flag
868 -- regardless of the ordering.
870 -- This is a temporary hack.
879 ++ [ verb, "-S", "-Wimplicit", cc_opt ]
880 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
885 #ifdef HAVE_GCC_HAS_WRAPV
886 -- We need consistent integer overflow (trac #952)
891 return (next_phase, dflags, maybe_loc, output_fn)
893 -- ToDo: postprocess the output from gcc
895 -----------------------------------------------------------------------------
898 runPhase Mangle stop dflags _basename _suff input_fn get_output_fn maybe_loc
899 = do let mangler_opts = getOpts dflags opt_m
902 machdep_opts <- return [ show (stolen_x86_regs dflags) ]
904 machdep_opts <- return []
907 let split = dopt Opt_SplitObjs dflags
909 | split = SplitMangle
911 output_fn <- get_output_fn dflags next_phase maybe_loc
913 SysTools.runMangle dflags (map SysTools.Option mangler_opts
914 ++ [ SysTools.FileOption "" input_fn
915 , SysTools.FileOption "" output_fn
917 ++ map SysTools.Option machdep_opts)
919 return (next_phase, dflags, maybe_loc, output_fn)
921 -----------------------------------------------------------------------------
924 runPhase SplitMangle stop dflags _basename _suff input_fn get_output_fn maybe_loc
925 = do -- tmp_pfx is the prefix used for the split .s files
926 -- We also use it as the file to contain the no. of split .s files (sigh)
927 split_s_prefix <- SysTools.newTempName dflags "split"
928 let n_files_fn = split_s_prefix
930 SysTools.runSplit dflags
931 [ SysTools.FileOption "" input_fn
932 , SysTools.FileOption "" split_s_prefix
933 , SysTools.FileOption "" n_files_fn
936 -- Save the number of split files for future references
937 s <- readFile n_files_fn
938 let n_files = read s :: Int
939 writeIORef v_Split_info (split_s_prefix, n_files)
941 -- Remember to delete all these files
942 addFilesToClean [ split_s_prefix ++ "__" ++ show n ++ ".s"
945 return (SplitAs, dflags, maybe_loc, "**splitmangle**")
946 -- we don't use the filename
948 -----------------------------------------------------------------------------
951 runPhase As stop dflags _basename _suff input_fn get_output_fn maybe_loc
952 = do let as_opts = getOpts dflags opt_a
953 let cmdline_include_paths = includePaths dflags
955 output_fn <- get_output_fn dflags StopLn maybe_loc
957 -- we create directories for the object file, because it
958 -- might be a hierarchical module.
959 createDirectoryHierarchy (directoryOf output_fn)
961 SysTools.runAs dflags
962 (map SysTools.Option as_opts
963 ++ [ SysTools.Option ("-I" ++ p) | p <- cmdline_include_paths ]
964 #ifdef sparc_TARGET_ARCH
965 -- We only support SparcV9 and better because V8 lacks an atomic CAS
966 -- instruction so we have to make sure that the assembler accepts the
967 -- instruction set. Note that the user can still override this
968 -- (e.g., -mcpu=ultrasparc). GCC picks the "best" -mcpu flag
969 -- regardless of the ordering.
971 -- This is a temporary hack.
972 ++ [ SysTools.Option "-mcpu=v9" ]
974 ++ [ SysTools.Option "-c"
975 , SysTools.FileOption "" input_fn
976 , SysTools.Option "-o"
977 , SysTools.FileOption "" output_fn
980 return (StopLn, dflags, maybe_loc, output_fn)
983 runPhase SplitAs stop dflags basename _suff _input_fn get_output_fn maybe_loc
985 output_fn <- get_output_fn dflags StopLn maybe_loc
987 let (base_o, _) = splitFilename output_fn
988 split_odir = base_o ++ "_split"
989 osuf = objectSuf dflags
991 createDirectoryHierarchy split_odir
993 -- remove M_split/ *.o, because we're going to archive M_split/ *.o
994 -- later and we don't want to pick up any old objects.
995 fs <- getDirectoryContents split_odir
996 mapM_ removeFile $ map (split_odir `joinFileName`)
997 $ filter (osuf `isSuffixOf`) fs
999 let as_opts = getOpts dflags opt_a
1001 (split_s_prefix, n) <- readIORef v_Split_info
1003 let split_s n = split_s_prefix ++ "__" ++ show n `joinFileExt` "s"
1004 split_obj n = split_odir `joinFileName`
1005 filenameOf base_o ++ "__" ++ show n
1009 = SysTools.runAs dflags
1010 (map SysTools.Option as_opts ++
1011 [ SysTools.Option "-c"
1012 , SysTools.Option "-o"
1013 , SysTools.FileOption "" (split_obj n)
1014 , SysTools.FileOption "" (split_s n)
1017 mapM_ assemble_file [1..n]
1019 -- and join the split objects into a single object file:
1020 let ld_r args = SysTools.runLink dflags ([
1021 SysTools.Option "-nostdlib",
1022 SysTools.Option "-nodefaultlibs",
1023 SysTools.Option "-Wl,-r",
1024 SysTools.Option ld_x_flag,
1025 SysTools.Option "-o",
1026 SysTools.FileOption "" output_fn ] ++ args)
1027 ld_x_flag | null cLD_X = ""
1028 | otherwise = "-Wl,-x"
1030 if cLdIsGNULd == "YES"
1032 let script = split_odir `joinFileName` "ld.script"
1034 "INPUT(" ++ unwords (map split_obj [1..n]) ++ ")"
1035 ld_r [SysTools.FileOption "" script]
1037 ld_r (map (SysTools.FileOption "" . split_obj) [1..n])
1039 return (StopLn, dflags, maybe_loc, output_fn)
1042 -----------------------------------------------------------------------------
1043 -- MoveBinary sort-of-phase
1044 -- After having produced a binary, move it somewhere else and generate a
1045 -- wrapper script calling the binary. Currently, we need this only in
1046 -- a parallel way (i.e. in GUM), because PVM expects the binary in a
1047 -- central directory.
1048 -- This is called from staticLink below, after linking. I haven't made it
1049 -- a separate phase to minimise interfering with other modules, and
1050 -- we don't need the generality of a phase (MoveBinary is always
1051 -- done after linking and makes only sense in a parallel setup) -- HWL
1053 runPhase_MoveBinary dflags input_fn
1055 let sysMan = pgm_sysman dflags
1056 pvm_root <- getEnv "PVM_ROOT"
1057 pvm_arch <- getEnv "PVM_ARCH"
1059 pvm_executable_base = "=" ++ input_fn
1060 pvm_executable = pvm_root ++ "/bin/" ++ pvm_arch ++ "/" ++ pvm_executable_base
1061 -- nuke old binary; maybe use configur'ed names for cp and rm?
1062 system ("rm -f " ++ pvm_executable)
1063 -- move the newly created binary into PVM land
1064 system ("cp -p " ++ input_fn ++ " " ++ pvm_executable)
1065 -- generate a wrapper script for running a parallel prg under PVM
1066 writeFile input_fn (mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan)
1069 -- generates a Perl skript starting a parallel prg under PVM
1070 mk_pvm_wrapper_script :: String -> String -> String -> String
1071 mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $
1073 "eval 'exec perl -S $0 ${1+\"$@\"}'",
1074 " if $running_under_some_shell;",
1075 "# =!=!=!=!=!=!=!=!=!=!=!",
1076 "# This script is automatically generated: DO NOT EDIT!!!",
1077 "# Generated by Glasgow Haskell Compiler",
1078 "# ngoqvam choHbogh vaj' vIHoHnISbej !!!!",
1080 "$pvm_executable = '" ++ pvm_executable ++ "';",
1081 "$pvm_executable_base = '" ++ pvm_executable_base ++ "';",
1082 "$SysMan = '" ++ sysMan ++ "';",
1084 {- ToDo: add the magical shortcuts again iff we actually use them -- HWL
1085 "# first, some magical shortcuts to run "commands" on the binary",
1086 "# (which is hidden)",
1087 "if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {",
1088 " local($cmd) = $1;",
1089 " system("$cmd $pvm_executable");",
1090 " exit(0); # all done",
1093 "# Now, run the real binary; process the args first",
1094 "$ENV{'PE'} = $pvm_executable_base;", -- ++ pvm_executable_base,
1096 "$nprocessors = 0; # the default: as many PEs as machines in PVM config",
1097 "@nonPVM_args = ();",
1098 "$in_RTS_args = 0;",
1100 "args: while ($a = shift(@ARGV)) {",
1101 " if ( $a eq '+RTS' ) {",
1102 " $in_RTS_args = 1;",
1103 " } elsif ( $a eq '-RTS' ) {",
1104 " $in_RTS_args = 0;",
1106 " if ( $a eq '-d' && $in_RTS_args ) {",
1108 " } elsif ( $a =~ /^-qN(\\d+)/ && $in_RTS_args ) {",
1109 " $nprocessors = $1;",
1110 " } elsif ( $a =~ /^-qp(\\d+)/ && $in_RTS_args ) {",
1111 " $nprocessors = $1;",
1113 " push(@nonPVM_args, $a);",
1117 "local($return_val) = 0;",
1118 "# Start the parallel execution by calling SysMan",
1119 "system(\"$SysMan $debug $pvm_executable $nprocessors @nonPVM_args\");",
1120 "$return_val = $?;",
1121 "# ToDo: fix race condition moving files and flushing them!!",
1122 "system(\"cp $ENV{'HOME'}/$pvm_executable_base.???.gr .\") if -f \"$ENV{'HOME'}/$pvm_executable_base.002.gr\";",
1123 "exit($return_val);"
1126 -----------------------------------------------------------------------------
1127 -- Complain about non-dynamic flags in OPTIONS pragmas
1129 checkProcessArgsResult flags filename
1130 = do when (notNull flags) (throwDyn (ProgramError (
1131 showSDoc (hang (text filename <> char ':')
1132 4 (text "unknown flags in {-# OPTIONS #-} pragma:" <+>
1133 hsep (map text flags)))
1136 -----------------------------------------------------------------------------
1137 -- Look for the /* GHC_PACKAGES ... */ comment at the top of a .hc file
1139 getHCFilePackages :: FilePath -> IO [PackageId]
1140 getHCFilePackages filename =
1141 Exception.bracket (openFile filename ReadMode) hClose $ \h -> do
1144 '/':'*':' ':'G':'H':'C':'_':'P':'A':'C':'K':'A':'G':'E':'S':rest ->
1145 return (map stringToPackageId (words rest))
1149 -----------------------------------------------------------------------------
1150 -- Static linking, of .o files
1152 -- The list of packages passed to link is the list of packages on
1153 -- which this program depends, as discovered by the compilation
1154 -- manager. It is combined with the list of packages that the user
1155 -- specifies on the command line with -package flags.
1157 -- In one-shot linking mode, we can't discover the package
1158 -- dependencies (because we haven't actually done any compilation or
1159 -- read any interface files), so the user must explicitly specify all
1162 staticLink :: DynFlags -> [FilePath] -> [PackageId] -> IO ()
1163 staticLink dflags o_files dep_packages = do
1164 let verb = getVerbFlag dflags
1165 output_fn = exeFileName dflags
1167 -- get the full list of packages to link with, by combining the
1168 -- explicit packages with the auto packages and all of their
1169 -- dependencies, and eliminating duplicates.
1171 pkg_lib_paths <- getPackageLibraryPath dflags dep_packages
1172 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
1174 let lib_paths = libraryPaths dflags
1175 let lib_path_opts = map ("-L"++) lib_paths
1177 pkg_link_opts <- getPackageLinkOpts dflags dep_packages
1179 #ifdef darwin_TARGET_OS
1180 pkg_framework_paths <- getPackageFrameworkPath dflags dep_packages
1181 let pkg_framework_path_opts = map ("-F"++) pkg_framework_paths
1183 let framework_paths = frameworkPaths dflags
1184 framework_path_opts = map ("-F"++) framework_paths
1186 pkg_frameworks <- getPackageFrameworks dflags dep_packages
1187 let pkg_framework_opts = concat [ ["-framework", fw] | fw <- pkg_frameworks ]
1189 let frameworks = cmdlineFrameworks dflags
1190 framework_opts = concat [ ["-framework", fw] | fw <- reverse frameworks ]
1191 -- reverse because they're added in reverse order from the cmd line
1194 -- probably _stub.o files
1195 extra_ld_inputs <- readIORef v_Ld_inputs
1197 -- opts from -optl-<blah> (including -l<blah> options)
1198 let extra_ld_opts = getOpts dflags opt_l
1200 let ways = wayNames dflags
1202 -- Here are some libs that need to be linked at the *end* of
1203 -- the command line, because they contain symbols that are referred to
1204 -- by the RTS. We can't therefore use the ordinary way opts for these.
1206 debug_opts | WayDebug `elem` ways = [
1207 #if defined(HAVE_LIBBFD)
1214 thread_opts | WayThreaded `elem` ways = [
1215 #if !defined(mingw32_TARGET_OS) && !defined(freebsd_TARGET_OS)
1218 #if defined(osf3_TARGET_OS)
1224 let (md_c_flags, _) = machdepCCOpts dflags
1225 SysTools.runLink dflags (
1226 [ SysTools.Option verb
1227 , SysTools.Option "-o"
1228 , SysTools.FileOption "" output_fn
1230 ++ map SysTools.Option (
1236 #ifdef darwin_TARGET_OS
1237 ++ framework_path_opts
1240 ++ pkg_lib_path_opts
1242 #ifdef darwin_TARGET_OS
1243 ++ pkg_framework_path_opts
1244 ++ pkg_framework_opts
1250 -- parallel only: move binary to another dir -- HWL
1251 when (WayPar `elem` ways)
1252 (do success <- runPhase_MoveBinary dflags output_fn
1253 if success then return ()
1254 else throwDyn (InstallationError ("cannot move binary to PVM dir")))
1257 exeFileName :: DynFlags -> FilePath
1259 | Just s <- outputFile dflags =
1260 #if defined(mingw32_HOST_OS)
1261 if null (suffixOf s)
1262 then s `joinFileExt` "exe"
1268 #if defined(mingw32_HOST_OS)
1274 -----------------------------------------------------------------------------
1275 -- Making a DLL (only for Win32)
1277 doMkDLL :: DynFlags -> [String] -> [PackageId] -> IO ()
1278 doMkDLL dflags o_files dep_packages = do
1279 let verb = getVerbFlag dflags
1280 let static = opt_Static
1281 let no_hs_main = dopt Opt_NoHsMain dflags
1282 let o_file = outputFile dflags
1283 let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
1285 pkg_lib_paths <- getPackageLibraryPath dflags dep_packages
1286 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
1288 let lib_paths = libraryPaths dflags
1289 let lib_path_opts = map ("-L"++) lib_paths
1291 pkg_link_opts <- getPackageLinkOpts dflags dep_packages
1293 -- probably _stub.o files
1294 extra_ld_inputs <- readIORef v_Ld_inputs
1296 -- opts from -optdll-<blah>
1297 let extra_ld_opts = getOpts dflags opt_dll
1299 let pstate = pkgState dflags
1300 rts_pkg = getPackageDetails pstate rtsPackageId
1301 base_pkg = getPackageDetails pstate basePackageId
1303 let extra_os = if static || no_hs_main
1305 else [ head (libraryDirs rts_pkg) ++ "/Main.dll_o",
1306 head (libraryDirs base_pkg) ++ "/PrelMain.dll_o" ]
1308 let (md_c_flags, _) = machdepCCOpts dflags
1309 SysTools.runMkDLL dflags
1310 ([ SysTools.Option verb
1311 , SysTools.Option "-o"
1312 , SysTools.FileOption "" output_fn
1314 ++ map SysTools.Option (
1318 ++ [ "--target=i386-mingw32" ]
1322 ++ pkg_lib_path_opts
1324 ++ (if "--def" `elem` (concatMap words extra_ld_opts)
1326 else [ "--export-all" ])
1329 -- -----------------------------------------------------------------------------
1332 doCpp :: DynFlags -> Bool -> Bool -> FilePath -> FilePath -> IO ()
1333 doCpp dflags raw include_cc_opts input_fn output_fn = do
1334 let hscpp_opts = getOpts dflags opt_P
1335 let cmdline_include_paths = includePaths dflags
1337 pkg_include_dirs <- getPackageIncludePath dflags []
1338 let include_paths = foldr (\ x xs -> "-I" : x : xs) []
1339 (cmdline_include_paths ++ pkg_include_dirs)
1341 let verb = getVerbFlag dflags
1344 | not include_cc_opts = []
1345 | otherwise = (optc ++ md_c_flags)
1347 optc = getOpts dflags opt_c
1348 (md_c_flags, _) = machdepCCOpts dflags
1350 let cpp_prog args | raw = SysTools.runCpp dflags args
1351 | otherwise = SysTools.runCc dflags (SysTools.Option "-E" : args)
1354 [ "-D" ++ HOST_OS ++ "_BUILD_OS=1",
1355 "-D" ++ HOST_ARCH ++ "_BUILD_ARCH=1",
1356 "-D" ++ TARGET_OS ++ "_HOST_OS=1",
1357 "-D" ++ TARGET_ARCH ++ "_HOST_ARCH=1" ]
1358 -- remember, in code we *compile*, the HOST is the same our TARGET,
1359 -- and BUILD is the same as our HOST.
1361 cpp_prog ([SysTools.Option verb]
1362 ++ map SysTools.Option include_paths
1363 ++ map SysTools.Option hsSourceCppOpts
1364 ++ map SysTools.Option hscpp_opts
1365 ++ map SysTools.Option cc_opts
1366 ++ map SysTools.Option target_defs
1367 ++ [ SysTools.Option "-x"
1368 , SysTools.Option "c"
1369 , SysTools.Option input_fn
1370 -- We hackily use Option instead of FileOption here, so that the file
1371 -- name is not back-slashed on Windows. cpp is capable of
1372 -- dealing with / in filenames, so it works fine. Furthermore
1373 -- if we put in backslashes, cpp outputs #line directives
1374 -- with *double* backslashes. And that in turn means that
1375 -- our error messages get double backslashes in them.
1376 -- In due course we should arrange that the lexer deals
1377 -- with these \\ escapes properly.
1378 , SysTools.Option "-o"
1379 , SysTools.FileOption "" output_fn
1382 cHaskell1Version = "5" -- i.e., Haskell 98
1384 -- Default CPP defines in Haskell source
1386 [ "-D__HASKELL1__="++cHaskell1Version
1387 , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
1389 , "-D__CONCURRENT_HASKELL__"
1393 -- -----------------------------------------------------------------------------
1396 hscNextPhase :: DynFlags -> HscSource -> HscTarget -> Phase
1397 hscNextPhase dflags HsBootFile hsc_lang = StopLn
1398 hscNextPhase dflags other hsc_lang =
1401 HscAsm | dopt Opt_SplitObjs dflags -> SplitMangle
1403 HscNothing -> StopLn
1404 HscInterpreted -> StopLn
1408 hscMaybeAdjustTarget :: DynFlags -> Phase -> HscSource -> HscTarget -> HscTarget
1409 hscMaybeAdjustTarget dflags stop HsBootFile current_hsc_lang
1410 = HscNothing -- No output (other than Foo.hi-boot) for hs-boot files
1411 hscMaybeAdjustTarget dflags stop other current_hsc_lang
1414 keep_hc = dopt Opt_KeepHcFiles dflags
1416 -- don't change the lang if we're interpreting
1417 | current_hsc_lang == HscInterpreted = current_hsc_lang
1419 -- force -fvia-C if we are being asked for a .hc file
1420 | HCc <- stop = HscC
1422 -- otherwise, stick to the plan
1423 | otherwise = current_hsc_lang
1425 GLOBAL_VAR(v_Split_info, ("",0), (String,Int))
1426 -- The split prefix and number of files