1 {-# OPTIONS -fno-cse #-}
2 -- -fno-cse is needed for GLOBAL_VAR's to behave properly
4 -----------------------------------------------------------------------------
8 -- (c) The University of Glasgow 2005
10 -----------------------------------------------------------------------------
12 module DriverPipeline (
13 -- Run a series of compilation steps in a pipeline, for a
14 -- collection of source files.
17 -- Interfaces for the batch-mode driver
20 -- Interfaces for the compilation manager (interpreted/batch-mode)
27 #include "HsVersions.h"
38 import LazyUniqFM ( eltsUFM )
41 import StaticFlags ( v_Ld_inputs, opt_Static, WayName(..) )
45 import StringBuffer ( hGetStringBuffer )
46 import BasicTypes ( SuccessFlag(..) )
47 import Maybes ( expectJust )
48 import ParserCoreUtils ( getCoreModuleName )
49 import SrcLoc ( unLoc )
50 import SrcLoc ( Located(..) )
54 import Data.IORef ( readIORef, writeIORef, IORef )
55 import GHC.Exts ( Int(..) )
56 import System.Directory
57 import System.FilePath
59 import System.IO.Error as IO
61 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 :: HscEnv -> (FilePath, Maybe Phase) -> IO (DynFlags, FilePath)
76 preprocess hsc_env (filename, mb_phase) =
77 ASSERT2(isJust mb_phase || isHaskellSrcFilename filename, text filename)
78 runPipeline anyHsc hsc_env (filename, mb_phase)
79 Nothing Temporary Nothing{-no ModLocation-}
81 -- ---------------------------------------------------------------------------
84 -- Compile a single module, under the control of the compilation manager.
86 -- This is the interface between the compilation manager and the
87 -- compiler proper (hsc), where we deal with tedious details like
88 -- reading the OPTIONS pragma from the source file, and passing the
89 -- output of hsc through the C compiler.
91 -- NB. No old interface can also mean that the source has changed.
94 -> ModSummary -- summary for module being compiled
95 -> Int -> Int -- module N of M
96 -> Maybe ModIface -- old interface, if we have one
97 -> Maybe Linkable -- old linkable, if we have one
98 -> IO (Maybe HomeModInfo) -- the complete HomeModInfo, if successful
100 compile hsc_env0 summary mod_index nmods mb_old_iface maybe_old_linkable
102 let dflags0 = ms_hspp_opts summary
103 this_mod = ms_mod summary
104 src_flavour = ms_hsc_src summary
105 location = ms_location summary
106 input_fn = expectJust "compile:hs" (ml_hs_file location)
107 input_fnpp = ms_hspp_file summary
109 debugTraceMsg dflags0 2 (text "compile: input file" <+> text input_fnpp)
111 let basename = dropExtension input_fn
113 -- We add the directory in which the .hs files resides) to the import path.
114 -- This is needed when we try to compile the .hc file later, if it
115 -- imports a _stub.h file that we created here.
116 let current_dir = case takeDirectory basename of
117 "" -> "." -- XXX Hack
119 old_paths = includePaths dflags0
120 dflags = dflags0 { includePaths = current_dir : old_paths }
121 hsc_env = hsc_env0 {hsc_dflags = dflags}
123 -- Figure out what lang we're generating
124 let hsc_lang = hscMaybeAdjustTarget dflags StopLn src_flavour (hscTarget dflags)
125 -- ... and what the next phase should be
126 let next_phase = hscNextPhase dflags src_flavour hsc_lang
127 -- ... and what file to generate the output into
128 output_fn <- getOutputFilename next_phase
129 Temporary basename dflags next_phase (Just location)
131 let dflags' = dflags { hscTarget = hsc_lang,
132 hscOutName = output_fn,
133 extCoreName = basename ++ ".hcr" }
134 let hsc_env' = hsc_env { hsc_dflags = dflags' }
136 -- -fforce-recomp should also work with --make
137 let force_recomp = dopt Opt_ForceRecomp dflags
138 source_unchanged = isJust maybe_old_linkable && not force_recomp
139 object_filename = ml_obj_file location
141 let getStubLinkable False = return []
143 = do stub_o <- compileStub hsc_env' this_mod location
144 return [ DotO stub_o ]
146 handleBatch HscNoRecomp
147 = ASSERT (isJust maybe_old_linkable)
148 return maybe_old_linkable
150 handleBatch (HscRecomp hasStub)
151 | isHsBoot src_flavour
152 = do when (isObjectTarget hsc_lang) $ -- interpreted reaches here too
153 SysTools.touch dflags' "Touching object file"
155 return maybe_old_linkable
158 = do stub_unlinked <- getStubLinkable hasStub
159 (hs_unlinked, unlinked_time) <-
162 -> return ([], ms_hs_date summary)
163 -- We're in --make mode: finish the compilation pipeline.
165 -> do runPipeline StopLn hsc_env' (output_fn,Nothing)
169 -- The object filename comes from the ModLocation
170 o_time <- getModificationTime object_filename
171 return ([DotO object_filename], o_time)
172 let linkable = LM unlinked_time this_mod
173 (hs_unlinked ++ stub_unlinked)
174 return (Just linkable)
176 handleInterpreted InteractiveNoRecomp
177 = ASSERT (isJust maybe_old_linkable)
178 return maybe_old_linkable
179 handleInterpreted (InteractiveRecomp hasStub comp_bc modBreaks)
180 = do stub_unlinked <- getStubLinkable hasStub
181 let hs_unlinked = [BCOs comp_bc modBreaks]
182 unlinked_time = ms_hs_date summary
183 -- Why do we use the timestamp of the source file here,
184 -- rather than the current time? This works better in
185 -- the case where the local clock is out of sync
186 -- with the filesystem's clock. It's just as accurate:
187 -- if the source is modified, then the linkable will
189 let linkable = LM unlinked_time this_mod
190 (hs_unlinked ++ stub_unlinked)
191 return (Just linkable)
193 let -- runCompiler :: Compiler result -> (result -> Maybe Linkable)
194 -- -> IO (Maybe HomeModInfo)
195 runCompiler compiler handle
196 = do mbResult <- compiler hsc_env' summary source_unchanged mb_old_iface
197 (Just (mod_index, nmods))
199 Nothing -> return Nothing
200 Just (result, iface, details) -> do
201 linkable <- handle result
202 return (Just HomeModInfo{ hm_details = details,
204 hm_linkable = linkable })
208 | isHsBoot src_flavour ->
209 runCompiler hscCompileNothing handleBatch
211 runCompiler hscCompileInteractive handleInterpreted
213 runCompiler hscCompileNothing handleBatch
215 runCompiler hscCompileBatch handleBatch
217 -----------------------------------------------------------------------------
218 -- stub .h and .c files (for foreign export support)
220 -- The _stub.c file is derived from the haskell source file, possibly taking
221 -- into account the -stubdir option.
223 -- Consequently, we derive the _stub.o filename from the haskell object
226 -- This isn't necessarily the same as the object filename we
227 -- would get if we just compiled the _stub.c file using the pipeline.
230 -- ghc src/A.hs -odir obj
232 -- results in obj/A.o, and src/A_stub.c. If we compile src/A_stub.c with
233 -- -odir obj, we would get obj/src/A_stub.o, which is wrong; we want
236 compileStub :: HscEnv -> Module -> ModLocation -> IO FilePath
237 compileStub hsc_env mod location = do
238 let (o_base, o_ext) = splitExtension (ml_obj_file location)
239 stub_o = (o_base ++ "_stub") <.> o_ext
241 -- compile the _stub.c file w/ gcc
242 let (stub_c,_,_) = mkStubPaths (hsc_dflags hsc_env) (moduleName mod) location
243 runPipeline StopLn hsc_env (stub_c,Nothing) Nothing
244 (SpecificFile stub_o) Nothing{-no ModLocation-}
249 -- ---------------------------------------------------------------------------
252 link :: GhcLink -- interactive or batch
253 -> DynFlags -- dynamic flags
254 -> Bool -- attempt linking in batch mode?
255 -> HomePackageTable -- what to link
258 -- For the moment, in the batch linker, we don't bother to tell doLink
259 -- which packages to link -- it just tries all that are available.
260 -- batch_attempt_linking should only be *looked at* in batch mode. It
261 -- should only be True if the upsweep was successful and someone
262 -- exports main, i.e., we have good reason to believe that linking
266 link LinkInMemory _ _ _
267 = do -- Not Linking...(demand linker will do the job)
274 link LinkBinary dflags batch_attempt_linking hpt
275 | batch_attempt_linking
278 home_mod_infos = eltsUFM hpt
280 -- the packages we depend on
281 pkg_deps = concatMap (dep_pkgs . mi_deps . hm_iface) home_mod_infos
283 -- the linkables to link
284 linkables = map (expectJust "link".hm_linkable) home_mod_infos
286 debugTraceMsg dflags 3 (text "link: linkables are ..." $$ vcat (map ppr linkables))
288 -- check for the -no-link flag
289 if isNoLink (ghcLink dflags)
290 then do debugTraceMsg dflags 3 (text "link(batch): linking omitted (-c flag given).")
294 let getOfiles (LM _ _ us) = map nameOfObject (filter isObject us)
295 obj_files = concatMap getOfiles linkables
297 exe_file = exeFileName dflags
299 -- if the modification time on the executable is later than the
300 -- modification times on all of the objects, then omit linking
301 -- (unless the -fforce-recomp flag was given).
302 e_exe_time <- IO.try $ getModificationTime exe_file
303 extra_ld_inputs <- readIORef v_Ld_inputs
304 extra_times <- mapM (IO.try . getModificationTime) extra_ld_inputs
305 let other_times = map linkableTime linkables
306 ++ [ t' | Right t' <- extra_times ]
307 linking_needed = case e_exe_time of
309 Right t -> any (t <) other_times
311 if not (dopt Opt_ForceRecomp dflags) && not linking_needed
312 then do debugTraceMsg dflags 2 (text exe_file <+> ptext (sLit "is up to date, linking not required."))
316 debugTraceMsg dflags 1 (ptext (sLit "Linking") <+> text exe_file
319 -- Don't showPass in Batch mode; doLink will do that for us.
320 let link = case ghcLink dflags of
321 LinkBinary -> linkBinary
322 LinkDynLib -> linkDynLib
323 other -> panicBadLink other
324 link dflags obj_files pkg_deps
326 debugTraceMsg dflags 3 (text "link: done")
328 -- linkBinary only returns if it succeeds
332 = do debugTraceMsg dflags 3 (text "link(batch): upsweep (partially) failed OR" $$
333 text " Main.main not exported; not linking.")
336 -- warning suppression
337 link other _ _ _ = panicBadLink other
339 panicBadLink :: GhcLink -> a
340 panicBadLink other = panic ("link: GHC not built to link this way: " ++
342 -- -----------------------------------------------------------------------------
343 -- Compile files in one-shot mode.
345 oneShot :: HscEnv -> Phase -> [(String, Maybe Phase)] -> IO ()
346 oneShot hsc_env stop_phase srcs = do
347 o_files <- mapM (compileFile hsc_env stop_phase) srcs
348 doLink (hsc_dflags hsc_env) stop_phase o_files
350 compileFile :: HscEnv -> Phase -> (FilePath, Maybe Phase) -> IO FilePath
351 compileFile hsc_env stop_phase (src, mb_phase) = do
352 exists <- doesFileExist src
354 ghcError (CmdLineError ("does not exist: " ++ src))
357 dflags = hsc_dflags hsc_env
358 split = dopt Opt_SplitObjs dflags
359 mb_o_file = outputFile dflags
360 ghc_link = ghcLink dflags -- Set by -c or -no-link
362 -- When linking, the -o argument refers to the linker's output.
363 -- otherwise, we use it as the name for the pipeline's output.
365 | StopLn <- stop_phase, not (isNoLink ghc_link) = Persistent
366 -- -o foo applies to linker
367 | Just o_file <- mb_o_file = SpecificFile o_file
368 -- -o foo applies to the file we are compiling now
369 | otherwise = Persistent
371 stop_phase' = case stop_phase of
372 As | split -> SplitAs
375 (_, out_file) <- runPipeline stop_phase' hsc_env
376 (src, mb_phase) Nothing output
377 Nothing{-no ModLocation-}
381 doLink :: DynFlags -> Phase -> [FilePath] -> IO ()
382 doLink dflags stop_phase o_files
383 | not (isStopLn stop_phase)
384 = return () -- We stopped before the linking phase
387 = case ghcLink dflags of
389 LinkBinary -> linkBinary dflags o_files link_pkgs
390 LinkDynLib -> linkDynLib dflags o_files []
391 other -> panicBadLink other
393 -- Always link in the haskell98 package for static linking. Other
394 -- packages have to be specified via the -package flag.
396 | dopt Opt_AutoLinkPackages dflags = [haskell98PackageId]
400 -- ---------------------------------------------------------------------------
401 -- Run a compilation pipeline, consisting of multiple phases.
403 -- This is the interface to the compilation pipeline, which runs
404 -- a series of compilation steps on a single source file, specifying
405 -- at which stage to stop.
407 -- The DynFlags can be modified by phases in the pipeline (eg. by
408 -- GHC_OPTIONS pragmas), and the changes affect later phases in the
413 -- output should be to a temporary file: we're going to
414 -- run more compilation steps on this output later
416 -- we want a persistent file, i.e. a file in the current directory
417 -- derived from the input filename, but with the appropriate extension.
418 -- eg. in "ghc -c Foo.hs" the output goes into ./Foo.o.
419 | SpecificFile FilePath
420 -- the output must go into the specified file.
423 :: Phase -- When to stop
424 -> HscEnv -- Compilation environment
425 -> (FilePath,Maybe Phase) -- Input filename (and maybe -x suffix)
426 -> Maybe FilePath -- original basename (if different from ^^^)
427 -> PipelineOutput -- Output filename
428 -> Maybe ModLocation -- A ModLocation, if this is a Haskell module
429 -> IO (DynFlags, FilePath) -- (final flags, output filename)
431 runPipeline stop_phase hsc_env0 (input_fn, mb_phase) mb_basename output maybe_loc
433 let dflags0 = hsc_dflags hsc_env0
434 (input_basename, suffix) = splitExtension input_fn
435 suffix' = drop 1 suffix -- strip off the .
436 basename | Just b <- mb_basename = b
437 | otherwise = input_basename
439 -- Decide where dump files should go based on the pipeline output
440 dflags = dflags0 { dumpPrefix = Just (basename ++ ".") }
441 hsc_env = hsc_env0 {hsc_dflags = dflags}
443 -- If we were given a -x flag, then use that phase to start from
444 start_phase = fromMaybe (startPhase suffix') mb_phase
446 -- We want to catch cases of "you can't get there from here" before
447 -- we start the pipeline, because otherwise it will just run off the
450 -- There is a partial ordering on phases, where A < B iff A occurs
451 -- before B in a normal compilation pipeline.
453 when (not (start_phase `happensBefore` stop_phase)) $
455 ("cannot compile this file to desired target: "
458 -- this is a function which will be used to calculate output file names
459 -- as we go along (we partially apply it to some of its inputs here)
460 let get_output_fn = getOutputFilename stop_phase output basename
462 -- Execute the pipeline...
463 (dflags', output_fn, maybe_loc) <-
464 pipeLoop hsc_env start_phase stop_phase input_fn
465 basename suffix' get_output_fn maybe_loc
467 -- Sometimes, a compilation phase doesn't actually generate any output
468 -- (eg. the CPP phase when -fcpp is not turned on). If we end on this
469 -- stage, but we wanted to keep the output, then we have to explicitly
470 -- copy the file, remembering to prepend a {-# LINE #-} pragma so that
471 -- further compilation stages can tell what the original filename was.
474 return (dflags', output_fn)
476 do final_fn <- get_output_fn dflags' stop_phase maybe_loc
477 when (final_fn /= output_fn) $ do
478 let msg = ("Copying `" ++ output_fn ++"' to `" ++ final_fn ++ "'")
479 line_prag = Just ("{-# LINE 1 \"" ++ input_fn ++ "\" #-}\n")
480 copyWithHeader dflags msg line_prag output_fn final_fn
481 return (dflags', final_fn)
485 pipeLoop :: HscEnv -> Phase -> Phase
486 -> FilePath -> String -> Suffix
487 -> (DynFlags -> Phase -> Maybe ModLocation -> IO FilePath)
489 -> IO (DynFlags, FilePath, Maybe ModLocation)
491 pipeLoop hsc_env phase stop_phase
492 input_fn orig_basename orig_suff
493 orig_get_output_fn maybe_loc
495 | phase `eqPhase` stop_phase -- All done
496 = return (hsc_dflags hsc_env, input_fn, maybe_loc)
498 | not (phase `happensBefore` stop_phase)
499 -- Something has gone wrong. We'll try to cover all the cases when
500 -- this could happen, so if we reach here it is a panic.
501 -- eg. it might happen if the -C flag is used on a source file that
502 -- has {-# OPTIONS -fasm #-}.
503 = panic ("pipeLoop: at phase " ++ show phase ++
504 " but I wanted to stop at phase " ++ show stop_phase)
507 = do (next_phase, dflags', maybe_loc, output_fn)
508 <- runPhase phase stop_phase hsc_env orig_basename
509 orig_suff input_fn orig_get_output_fn maybe_loc
510 let hsc_env' = hsc_env {hsc_dflags = dflags'}
511 pipeLoop hsc_env' next_phase stop_phase output_fn
512 orig_basename orig_suff orig_get_output_fn maybe_loc
515 :: Phase -> PipelineOutput -> String
516 -> DynFlags -> Phase{-next phase-} -> Maybe ModLocation -> IO FilePath
517 getOutputFilename stop_phase output basename
520 func dflags next_phase maybe_location
521 | is_last_phase, Persistent <- output = persistent_fn
522 | is_last_phase, SpecificFile f <- output = return f
523 | keep_this_output = persistent_fn
524 | otherwise = newTempName dflags suffix
527 odir = objectDir dflags
528 osuf = objectSuf dflags
529 keep_hc = dopt Opt_KeepHcFiles dflags
530 keep_raw_s = dopt Opt_KeepRawSFiles dflags
531 keep_s = dopt Opt_KeepSFiles dflags
533 myPhaseInputExt HCc = hcsuf
534 myPhaseInputExt StopLn = osuf
535 myPhaseInputExt other = phaseInputExt other
537 is_last_phase = next_phase `eqPhase` stop_phase
539 -- sometimes, we keep output from intermediate stages
543 Mangle | keep_raw_s -> True
545 HCc | keep_hc -> True
548 suffix = myPhaseInputExt next_phase
550 -- persistent object files get put in odir
552 | StopLn <- next_phase = return odir_persistent
553 | otherwise = return persistent
555 persistent = basename <.> suffix
558 | Just loc <- maybe_location = ml_obj_file loc
559 | Just d <- odir = d </> persistent
560 | otherwise = persistent
563 -- -----------------------------------------------------------------------------
564 -- Each phase in the pipeline returns the next phase to execute, and the
565 -- name of the file in which the output was placed.
567 -- We must do things dynamically this way, because we often don't know
568 -- what the rest of the phases will be until part-way through the
569 -- compilation: for example, an {-# OPTIONS -fasm #-} at the beginning
570 -- of a source file can change the latter stages of the pipeline from
571 -- taking the via-C route to using the native code generator.
573 runPhase :: Phase -- Do this phase first
574 -> Phase -- Stop just before this phase
576 -> String -- basename of original input source
577 -> String -- its extension
578 -> FilePath -- name of file which contains the input to this phase.
579 -> (DynFlags -> Phase -> Maybe ModLocation -> IO FilePath)
580 -- how to calculate the output filename
581 -> Maybe ModLocation -- the ModLocation, if we have one
582 -> IO (Phase, -- next phase
583 DynFlags, -- new dynamic flags
584 Maybe ModLocation, -- the ModLocation, if we have one
585 FilePath) -- output filename
587 -- Invariant: the output filename always contains the output
588 -- Interesting case: Hsc when there is no recompilation to do
589 -- Then the output filename is still a .o file
591 -------------------------------------------------------------------------------
594 runPhase (Unlit sf) _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
596 let dflags = hsc_dflags hsc_env
597 output_fn <- get_output_fn dflags (Cpp sf) maybe_loc
599 let unlit_flags = getOpts dflags opt_L
600 flags = map SysTools.Option unlit_flags ++
601 [ -- The -h option passes the file name for unlit to
602 -- put in a #line directive
604 -- cpp interprets \b etc as escape sequences,
605 -- so we use / for filenames in pragmas
606 , SysTools.Option $ reslash Forwards $ normalise input_fn
607 , SysTools.FileOption "" input_fn
608 , SysTools.FileOption "" output_fn
611 SysTools.runUnlit dflags flags
613 return (Cpp sf, dflags, maybe_loc, output_fn)
615 -------------------------------------------------------------------------------
616 -- Cpp phase : (a) gets OPTIONS out of file
617 -- (b) runs cpp if necessary
619 runPhase (Cpp sf) _stop hsc_env basename suff input_fn get_output_fn maybe_loc
620 = do let dflags0 = hsc_dflags hsc_env
621 src_opts <- getOptionsFromFile dflags0 input_fn
622 (dflags, unhandled_flags, warns) <- parseDynamicFlags dflags0 (map unLoc src_opts)
623 handleFlagWarnings dflags warns
624 checkProcessArgsResult unhandled_flags (basename <.> suff)
626 if not (dopt Opt_Cpp dflags) then
627 -- no need to preprocess CPP, just pass input file along
628 -- to the next phase of the pipeline.
629 return (HsPp sf, dflags, maybe_loc, input_fn)
631 output_fn <- get_output_fn dflags (HsPp sf) maybe_loc
632 doCpp dflags True{-raw-} False{-no CC opts-} input_fn output_fn
633 return (HsPp sf, dflags, maybe_loc, output_fn)
635 -------------------------------------------------------------------------------
638 runPhase (HsPp sf) _stop hsc_env basename suff input_fn get_output_fn maybe_loc
639 = do let dflags = hsc_dflags hsc_env
640 if not (dopt Opt_Pp dflags) then
641 -- no need to preprocess, just pass input file along
642 -- to the next phase of the pipeline.
643 return (Hsc sf, dflags, maybe_loc, input_fn)
645 let hspp_opts = getOpts dflags opt_F
646 let orig_fn = basename <.> suff
647 output_fn <- get_output_fn dflags (Hsc sf) maybe_loc
648 SysTools.runPp dflags
649 ( [ SysTools.Option orig_fn
650 , SysTools.Option input_fn
651 , SysTools.FileOption "" output_fn
653 map SysTools.Option hspp_opts
655 return (Hsc sf, dflags, maybe_loc, output_fn)
657 -----------------------------------------------------------------------------
660 -- Compilation of a single module, in "legacy" mode (_not_ under
661 -- the direction of the compilation manager).
662 runPhase (Hsc src_flavour) stop hsc_env basename suff input_fn get_output_fn _maybe_loc
663 = do -- normal Hsc mode, not mkdependHS
664 let dflags0 = hsc_dflags hsc_env
666 -- we add the current directory (i.e. the directory in which
667 -- the .hs files resides) to the include path, since this is
668 -- what gcc does, and it's probably what you want.
669 let current_dir = case takeDirectory basename of
670 "" -> "." -- XXX Hack
673 paths = includePaths dflags0
674 dflags = dflags0 { includePaths = current_dir : paths }
676 -- gather the imports and module name
677 (hspp_buf,mod_name,imps,src_imps) <-
679 ExtCoreFile -> do { -- no explicit imports in ExtCore input.
680 ; m <- getCoreModuleName input_fn
681 ; return (Nothing, mkModuleName m, [], []) }
683 _ -> do { buf <- hGetStringBuffer input_fn
684 ; (src_imps,imps,L _ mod_name) <- getImports dflags buf input_fn (basename <.> suff)
685 ; return (Just buf, mod_name, imps, src_imps) }
687 -- Build a ModLocation to pass to hscMain.
688 -- The source filename is rather irrelevant by now, but it's used
689 -- by hscMain for messages. hscMain also needs
690 -- the .hi and .o filenames, and this is as good a way
691 -- as any to generate them, and better than most. (e.g. takes
692 -- into accout the -osuf flags)
693 location1 <- mkHomeModLocation2 dflags mod_name basename suff
695 -- Boot-ify it if necessary
696 let location2 | isHsBoot src_flavour = addBootSuffixLocn location1
697 | otherwise = location1
700 -- Take -ohi into account if present
701 -- This can't be done in mkHomeModuleLocation because
702 -- it only applies to the module being compiles
703 let ohi = outputHi dflags
704 location3 | Just fn <- ohi = location2{ ml_hi_file = fn }
705 | otherwise = location2
707 -- Take -o into account if present
708 -- Very like -ohi, but we must *only* do this if we aren't linking
709 -- (If we're linking then the -o applies to the linked thing, not to
710 -- the object file for one module.)
711 -- Note the nasty duplication with the same computation in compileFile above
712 let expl_o_file = outputFile dflags
713 location4 | Just ofile <- expl_o_file
714 , isNoLink (ghcLink dflags)
715 = location3 { ml_obj_file = ofile }
716 | otherwise = location3
718 o_file = ml_obj_file location4 -- The real object file
721 -- Figure out if the source has changed, for recompilation avoidance.
723 -- Setting source_unchanged to True means that M.o seems
724 -- to be up to date wrt M.hs; so no need to recompile unless imports have
725 -- changed (which the compiler itself figures out).
726 -- Setting source_unchanged to False tells the compiler that M.o is out of
727 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
728 src_timestamp <- getModificationTime (basename <.> suff)
730 let force_recomp = dopt Opt_ForceRecomp dflags
732 if force_recomp || not (isStopLn stop)
733 -- Set source_unchanged to False unconditionally if
734 -- (a) recompilation checker is off, or
735 -- (b) we aren't going all the way to .o file (e.g. ghc -S)
737 -- Otherwise look at file modification dates
738 else do o_file_exists <- doesFileExist o_file
740 then return False -- Need to recompile
741 else do t2 <- getModificationTime o_file
742 if t2 > src_timestamp
747 let hsc_lang = hscMaybeAdjustTarget dflags stop src_flavour (hscTarget dflags)
748 let next_phase = hscNextPhase dflags src_flavour hsc_lang
749 output_fn <- get_output_fn dflags next_phase (Just location4)
751 let dflags' = dflags { hscTarget = hsc_lang,
752 hscOutName = output_fn,
753 extCoreName = basename ++ ".hcr" }
755 let hsc_env' = hsc_env {hsc_dflags = dflags'}
757 -- Tell the finder cache about this module
758 mod <- addHomeModuleToFinder hsc_env' mod_name location4
760 -- Make the ModSummary to hand to hscMain
762 mod_summary = ModSummary { ms_mod = mod,
763 ms_hsc_src = src_flavour,
764 ms_hspp_file = input_fn,
765 ms_hspp_opts = dflags,
766 ms_hspp_buf = hspp_buf,
767 ms_location = location4,
768 ms_hs_date = src_timestamp,
769 ms_obj_date = Nothing,
771 ms_srcimps = src_imps }
774 mbResult <- hscCompileOneShot hsc_env'
775 mod_summary source_unchanged
777 Nothing -- No "module i of n" progress info
780 Nothing -> ghcError (PhaseFailed "hsc" (ExitFailure 1))
782 -> do SysTools.touch dflags' "Touching object file" o_file
783 -- The .o file must have a later modification date
784 -- than the source file (else we wouldn't be in HscNoRecomp)
785 -- but we touch it anyway, to keep 'make' happy (we think).
786 return (StopLn, dflags', Just location4, o_file)
787 Just (HscRecomp hasStub)
789 do stub_o <- compileStub hsc_env' mod location4
790 consIORef v_Ld_inputs stub_o
791 -- In the case of hs-boot files, generate a dummy .o-boot
792 -- stamp file for the benefit of Make
793 when (isHsBoot src_flavour) $
794 SysTools.touch dflags' "Touching object file" o_file
795 return (next_phase, dflags', Just location4, output_fn)
797 -----------------------------------------------------------------------------
800 runPhase CmmCpp _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
802 let dflags = hsc_dflags hsc_env
803 output_fn <- get_output_fn dflags Cmm maybe_loc
804 doCpp dflags False{-not raw-} True{-include CC opts-} input_fn output_fn
805 return (Cmm, dflags, maybe_loc, output_fn)
807 runPhase Cmm stop hsc_env basename _ input_fn get_output_fn maybe_loc
809 let dflags = hsc_dflags hsc_env
810 let hsc_lang = hscMaybeAdjustTarget dflags stop HsSrcFile (hscTarget dflags)
811 let next_phase = hscNextPhase dflags HsSrcFile hsc_lang
812 output_fn <- get_output_fn dflags next_phase maybe_loc
814 let dflags' = dflags { hscTarget = hsc_lang,
815 hscOutName = output_fn,
816 extCoreName = basename ++ ".hcr" }
817 let hsc_env' = hsc_env {hsc_dflags = dflags'}
819 ok <- hscCmmFile hsc_env' input_fn
821 when (not ok) $ ghcError (PhaseFailed "cmm" (ExitFailure 1))
823 return (next_phase, dflags, maybe_loc, output_fn)
825 -----------------------------------------------------------------------------
828 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
829 -- way too many hacks, and I can't say I've ever used it anyway.
831 runPhase cc_phase _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
832 | cc_phase `eqPhase` Cc || cc_phase `eqPhase` Ccpp || cc_phase `eqPhase` HCc
833 = do let dflags = hsc_dflags hsc_env
834 let cc_opts = getOpts dflags opt_c
835 hcc = cc_phase `eqPhase` HCc
837 let cmdline_include_paths = includePaths dflags
839 -- HC files have the dependent packages stamped into them
840 pkgs <- if hcc then getHCFilePackages input_fn else return []
842 -- add package include paths even if we're just compiling .c
843 -- files; this is the Value Add(TM) that using ghc instead of
845 pkg_include_dirs <- getPackageIncludePath dflags pkgs
846 let include_paths = foldr (\ x xs -> "-I" : x : xs) []
847 (cmdline_include_paths ++ pkg_include_dirs)
849 let (md_c_flags, md_regd_c_flags) = machdepCCOpts dflags
850 gcc_extra_viac_flags <- getExtraViaCOpts dflags
851 let pic_c_flags = picCCOpts dflags
853 let verb = getVerbFlag dflags
855 pkg_extra_cc_opts <- getPackageExtraCcOpts dflags pkgs
857 #ifdef darwin_TARGET_OS
858 pkg_framework_paths <- getPackageFrameworkPath dflags pkgs
859 let cmdline_framework_paths = frameworkPaths dflags
860 let framework_paths = map ("-F"++)
861 (cmdline_framework_paths ++ pkg_framework_paths)
864 let split_objs = dopt Opt_SplitObjs dflags
865 split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
868 let cc_opt | optLevel dflags >= 2 = "-O2"
873 let mangle = dopt Opt_DoAsmMangling dflags
875 | hcc && mangle = Mangle
877 output_fn <- get_output_fn dflags next_phase maybe_loc
882 -- on x86 the floating point regs have greater precision
883 -- than a double, which leads to unpredictable results.
884 -- By default, we turn this off with -ffloat-store unless
885 -- the user specified -fexcess-precision.
886 (if dopt Opt_ExcessPrecision dflags
888 else [ "-ffloat-store" ]) ++
890 -- gcc's -fstrict-aliasing allows two accesses to memory
891 -- to be considered non-aliasing if they have different types.
892 -- This interacts badly with the C code we generate, which is
893 -- very weakly typed, being derived from C--.
894 ["-fno-strict-aliasing"]
898 SysTools.runCc dflags (
899 -- force the C compiler to interpret this file as C when
900 -- compiling .hc files, by adding the -x c option.
901 -- Also useful for plain .c files, just in case GHC saw a
903 [ SysTools.Option "-x", if cc_phase `eqPhase` Ccpp
904 then SysTools.Option "c++" else SysTools.Option "c"] ++
905 [ SysTools.FileOption "" input_fn
906 , SysTools.Option "-o"
907 , SysTools.FileOption "" output_fn
909 ++ map SysTools.Option (
912 #ifdef sparc_TARGET_ARCH
913 -- We only support SparcV9 and better because V8 lacks an atomic CAS
914 -- instruction. Note that the user can still override this
915 -- (e.g., -mcpu=ultrasparc) as GCC picks the "best" -mcpu flag
916 -- regardless of the ordering.
918 -- This is a temporary hack.
926 then gcc_extra_viac_flags
927 else filter (=="-fwrapv")
929 -- still want -fwrapv even for unreg'd
934 ++ [ verb, "-S", "-Wimplicit", cc_opt ]
935 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
936 #ifdef darwin_TARGET_OS
945 return (next_phase, dflags, maybe_loc, output_fn)
947 -- ToDo: postprocess the output from gcc
949 -----------------------------------------------------------------------------
952 runPhase Mangle _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
953 = do let dflags = hsc_dflags hsc_env
954 let mangler_opts = getOpts dflags opt_m
957 machdep_opts <- return [ show (stolen_x86_regs dflags) ]
959 machdep_opts <- return []
962 let split = dopt Opt_SplitObjs dflags
964 | split = SplitMangle
966 output_fn <- get_output_fn dflags next_phase maybe_loc
968 SysTools.runMangle dflags (map SysTools.Option mangler_opts
969 ++ [ SysTools.FileOption "" input_fn
970 , SysTools.FileOption "" output_fn
972 ++ map SysTools.Option machdep_opts)
974 return (next_phase, dflags, maybe_loc, output_fn)
976 -----------------------------------------------------------------------------
979 runPhase SplitMangle _stop hsc_env _basename _suff input_fn _get_output_fn maybe_loc
980 = do -- tmp_pfx is the prefix used for the split .s files
981 -- We also use it as the file to contain the no. of split .s files (sigh)
982 let dflags = hsc_dflags hsc_env
983 split_s_prefix <- SysTools.newTempName dflags "split"
984 let n_files_fn = split_s_prefix
986 SysTools.runSplit dflags
987 [ SysTools.FileOption "" input_fn
988 , SysTools.FileOption "" split_s_prefix
989 , SysTools.FileOption "" n_files_fn
992 -- Save the number of split files for future references
993 s <- readFile n_files_fn
994 let n_files = read s :: Int
995 writeIORef v_Split_info (split_s_prefix, n_files)
997 -- Remember to delete all these files
998 addFilesToClean [ split_s_prefix ++ "__" ++ show n ++ ".s"
1001 return (SplitAs, dflags, maybe_loc, "**splitmangle**")
1002 -- we don't use the filename
1004 -----------------------------------------------------------------------------
1007 runPhase As _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
1008 = do let dflags = hsc_dflags hsc_env
1009 let as_opts = getOpts dflags opt_a
1010 let cmdline_include_paths = includePaths dflags
1012 output_fn <- get_output_fn dflags StopLn maybe_loc
1014 -- we create directories for the object file, because it
1015 -- might be a hierarchical module.
1016 createDirectoryHierarchy (takeDirectory output_fn)
1018 SysTools.runAs dflags
1019 (map SysTools.Option as_opts
1020 ++ [ SysTools.Option ("-I" ++ p) | p <- cmdline_include_paths ]
1021 #ifdef sparc_TARGET_ARCH
1022 -- We only support SparcV9 and better because V8 lacks an atomic CAS
1023 -- instruction so we have to make sure that the assembler accepts the
1024 -- instruction set. Note that the user can still override this
1025 -- (e.g., -mcpu=ultrasparc). GCC picks the "best" -mcpu flag
1026 -- regardless of the ordering.
1028 -- This is a temporary hack.
1029 ++ [ SysTools.Option "-mcpu=v9" ]
1031 ++ [ SysTools.Option "-c"
1032 , SysTools.FileOption "" input_fn
1033 , SysTools.Option "-o"
1034 , SysTools.FileOption "" output_fn
1037 return (StopLn, dflags, maybe_loc, output_fn)
1040 runPhase SplitAs _stop hsc_env _basename _suff _input_fn get_output_fn maybe_loc
1042 let dflags = hsc_dflags hsc_env
1043 output_fn <- get_output_fn dflags StopLn maybe_loc
1045 let base_o = dropExtension output_fn
1046 split_odir = base_o ++ "_split"
1047 osuf = objectSuf dflags
1049 createDirectoryHierarchy split_odir
1051 -- remove M_split/ *.o, because we're going to archive M_split/ *.o
1052 -- later and we don't want to pick up any old objects.
1053 fs <- getDirectoryContents split_odir
1054 mapM_ removeFile $ map (split_odir </>) $ filter (osuf `isSuffixOf`) fs
1056 let as_opts = getOpts dflags opt_a
1058 (split_s_prefix, n) <- readIORef v_Split_info
1060 let split_s n = split_s_prefix ++ "__" ++ show n <.> "s"
1061 split_obj n = split_odir </>
1062 takeFileName base_o ++ "__" ++ show n <.> osuf
1065 = SysTools.runAs dflags
1066 (map SysTools.Option as_opts ++
1067 [ SysTools.Option "-c"
1068 , SysTools.Option "-o"
1069 , SysTools.FileOption "" (split_obj n)
1070 , SysTools.FileOption "" (split_s n)
1073 mapM_ assemble_file [1..n]
1075 -- and join the split objects into a single object file:
1076 let ld_r args = SysTools.runLink dflags ([
1077 SysTools.Option "-nostdlib",
1078 SysTools.Option "-nodefaultlibs",
1079 SysTools.Option "-Wl,-r",
1080 SysTools.Option ld_x_flag,
1081 SysTools.Option "-o",
1082 SysTools.FileOption "" output_fn ] ++ args)
1083 ld_x_flag | null cLD_X = ""
1084 | otherwise = "-Wl,-x"
1086 if cLdIsGNULd == "YES"
1088 let script = split_odir </> "ld.script"
1090 "INPUT(" ++ unwords (map split_obj [1..n]) ++ ")"
1091 ld_r [SysTools.FileOption "" script]
1093 ld_r (map (SysTools.FileOption "" . split_obj) [1..n])
1095 return (StopLn, dflags, maybe_loc, output_fn)
1097 -- warning suppression
1098 runPhase other _stop _dflags _basename _suff _input_fn _get_output_fn _maybe_loc =
1099 panic ("runPhase: don't know how to run phase " ++ show other)
1100 -----------------------------------------------------------------------------
1101 -- MoveBinary sort-of-phase
1102 -- After having produced a binary, move it somewhere else and generate a
1103 -- wrapper script calling the binary. Currently, we need this only in
1104 -- a parallel way (i.e. in GUM), because PVM expects the binary in a
1105 -- central directory.
1106 -- This is called from linkBinary below, after linking. I haven't made it
1107 -- a separate phase to minimise interfering with other modules, and
1108 -- we don't need the generality of a phase (MoveBinary is always
1109 -- done after linking and makes only sense in a parallel setup) -- HWL
1111 runPhase_MoveBinary :: DynFlags -> FilePath -> [PackageId] -> IO Bool
1112 runPhase_MoveBinary dflags input_fn dep_packages
1113 | WayPar `elem` (wayNames dflags) && not opt_Static =
1114 panic ("Don't know how to combine PVM wrapper and dynamic wrapper")
1115 | WayPar `elem` (wayNames dflags) = do
1116 let sysMan = pgm_sysman dflags
1117 pvm_root <- getEnv "PVM_ROOT"
1118 pvm_arch <- getEnv "PVM_ARCH"
1120 pvm_executable_base = "=" ++ input_fn
1121 pvm_executable = pvm_root ++ "/bin/" ++ pvm_arch ++ "/" ++ pvm_executable_base
1122 -- nuke old binary; maybe use configur'ed names for cp and rm?
1123 tryIO (removeFile pvm_executable)
1124 -- move the newly created binary into PVM land
1125 copy dflags "copying PVM executable" input_fn pvm_executable
1126 -- generate a wrapper script for running a parallel prg under PVM
1127 writeFile input_fn (mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan)
1130 case (dynLibLoader dflags) of
1133 let (o_base, o_ext) = splitExtension input_fn
1134 let wrapped_executable | o_ext == "exe" = (o_base ++ "_real") <.> o_ext
1135 | otherwise = input_fn ++ "_real"
1136 behaviour <- wrapper_behaviour dflags wrapmode dep_packages
1138 -- THINKME isn't this possible to do a bit nicer?
1139 let behaviour' = concatMap (\x -> if x=='\\' then "\\\\" else [x]) behaviour
1140 renameFile input_fn wrapped_executable
1141 let rtsDetails = (getPackageDetails (pkgState dflags) rtsPackageId);
1142 SysTools.runCc dflags
1143 ([ SysTools.FileOption "" ((head (libraryDirs rtsDetails)) ++ "/dyn-wrapper.c")
1144 , SysTools.Option ("-DBEHAVIOUR=\"" ++ behaviour' ++ "\"")
1145 , SysTools.Option "-o"
1146 , SysTools.FileOption "" input_fn
1147 ] ++ map (SysTools.FileOption "-I") (includeDirs rtsDetails))
1150 | otherwise = return True
1152 wrapper_behaviour :: DynFlags -> Maybe [Char] -> [PackageId] -> IO [Char]
1153 wrapper_behaviour dflags mode dep_packages =
1154 let seperateBySemiColon strs = tail $ concatMap (';':) strs
1157 pkg_lib_paths <- getPackageLibraryPath dflags dep_packages
1158 return ('H' : (seperateBySemiColon pkg_lib_paths))
1160 allpkg <- getPreloadPackagesAnd dflags dep_packages
1161 putStrLn (unwords (map (packageIdString . packageConfigId) allpkg))
1162 return $ 'F':s ++ ';':(seperateBySemiColon (map (packageIdString . packageConfigId) allpkg))
1164 -- generates a Perl skript starting a parallel prg under PVM
1165 mk_pvm_wrapper_script :: String -> String -> String -> String
1166 mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $
1168 "eval 'exec perl -S $0 ${1+\"$@\"}'",
1169 " if $running_under_some_shell;",
1170 "# =!=!=!=!=!=!=!=!=!=!=!",
1171 "# This script is automatically generated: DO NOT EDIT!!!",
1172 "# Generated by Glasgow Haskell Compiler",
1173 "# ngoqvam choHbogh vaj' vIHoHnISbej !!!!",
1175 "$pvm_executable = '" ++ pvm_executable ++ "';",
1176 "$pvm_executable_base = '" ++ pvm_executable_base ++ "';",
1177 "$SysMan = '" ++ sysMan ++ "';",
1179 {- ToDo: add the magical shortcuts again iff we actually use them -- HWL
1180 "# first, some magical shortcuts to run "commands" on the binary",
1181 "# (which is hidden)",
1182 "if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {",
1183 " local($cmd) = $1;",
1184 " system("$cmd $pvm_executable");",
1185 " exit(0); # all done",
1188 "# Now, run the real binary; process the args first",
1189 "$ENV{'PE'} = $pvm_executable_base;", -- ++ pvm_executable_base,
1191 "$nprocessors = 0; # the default: as many PEs as machines in PVM config",
1192 "@nonPVM_args = ();",
1193 "$in_RTS_args = 0;",
1195 "args: while ($a = shift(@ARGV)) {",
1196 " if ( $a eq '+RTS' ) {",
1197 " $in_RTS_args = 1;",
1198 " } elsif ( $a eq '-RTS' ) {",
1199 " $in_RTS_args = 0;",
1201 " if ( $a eq '-d' && $in_RTS_args ) {",
1203 " } elsif ( $a =~ /^-qN(\\d+)/ && $in_RTS_args ) {",
1204 " $nprocessors = $1;",
1205 " } elsif ( $a =~ /^-qp(\\d+)/ && $in_RTS_args ) {",
1206 " $nprocessors = $1;",
1208 " push(@nonPVM_args, $a);",
1212 "local($return_val) = 0;",
1213 "# Start the parallel execution by calling SysMan",
1214 "system(\"$SysMan $debug $pvm_executable $nprocessors @nonPVM_args\");",
1215 "$return_val = $?;",
1216 "# ToDo: fix race condition moving files and flushing them!!",
1217 "system(\"cp $ENV{'HOME'}/$pvm_executable_base.???.gr .\") if -f \"$ENV{'HOME'}/$pvm_executable_base.002.gr\";",
1218 "exit($return_val);"
1221 -----------------------------------------------------------------------------
1222 -- Look for the /* GHC_PACKAGES ... */ comment at the top of a .hc file
1224 getHCFilePackages :: FilePath -> IO [PackageId]
1225 getHCFilePackages filename =
1226 Exception.bracket (openFile filename ReadMode) hClose $ \h -> do
1229 '/':'*':' ':'G':'H':'C':'_':'P':'A':'C':'K':'A':'G':'E':'S':rest ->
1230 return (map stringToPackageId (words rest))
1234 -----------------------------------------------------------------------------
1235 -- Static linking, of .o files
1237 -- The list of packages passed to link is the list of packages on
1238 -- which this program depends, as discovered by the compilation
1239 -- manager. It is combined with the list of packages that the user
1240 -- specifies on the command line with -package flags.
1242 -- In one-shot linking mode, we can't discover the package
1243 -- dependencies (because we haven't actually done any compilation or
1244 -- read any interface files), so the user must explicitly specify all
1247 linkBinary :: DynFlags -> [FilePath] -> [PackageId] -> IO ()
1248 linkBinary dflags o_files dep_packages = do
1249 let verb = getVerbFlag dflags
1250 output_fn = exeFileName dflags
1252 -- get the full list of packages to link with, by combining the
1253 -- explicit packages with the auto packages and all of their
1254 -- dependencies, and eliminating duplicates.
1256 pkg_lib_paths <- getPackageLibraryPath dflags dep_packages
1257 let pkg_lib_path_opts = concat (map get_pkg_lib_path_opts pkg_lib_paths)
1258 #ifdef linux_TARGET_OS
1259 get_pkg_lib_path_opts l | (dynLibLoader dflags)==SystemDependent && not opt_Static = ["-L" ++ l, "-Wl,-rpath", "-Wl," ++ l]
1260 | otherwise = ["-L" ++ l]
1262 get_pkg_lib_path_opts l = ["-L" ++ l]
1265 let lib_paths = libraryPaths dflags
1266 let lib_path_opts = map ("-L"++) lib_paths
1268 pkg_link_opts <- getPackageLinkOpts dflags dep_packages
1270 #ifdef darwin_TARGET_OS
1271 pkg_framework_paths <- getPackageFrameworkPath dflags dep_packages
1272 let pkg_framework_path_opts = map ("-F"++) pkg_framework_paths
1274 let framework_paths = frameworkPaths dflags
1275 framework_path_opts = map ("-F"++) framework_paths
1277 pkg_frameworks <- getPackageFrameworks dflags dep_packages
1278 let pkg_framework_opts = concat [ ["-framework", fw] | fw <- pkg_frameworks ]
1280 let frameworks = cmdlineFrameworks dflags
1281 framework_opts = concat [ ["-framework", fw] | fw <- reverse frameworks ]
1282 -- reverse because they're added in reverse order from the cmd line
1284 #ifdef mingw32_TARGET_OS
1285 let dynMain = if not opt_Static then
1286 (head (libraryDirs (getPackageDetails (pkgState dflags) rtsPackageId))) ++ "/Main.dyn_o"
1290 -- probably _stub.o files
1291 extra_ld_inputs <- readIORef v_Ld_inputs
1293 -- opts from -optl-<blah> (including -l<blah> options)
1294 let extra_ld_opts = getOpts dflags opt_l
1296 let ways = wayNames dflags
1298 -- Here are some libs that need to be linked at the *end* of
1299 -- the command line, because they contain symbols that are referred to
1300 -- by the RTS. We can't therefore use the ordinary way opts for these.
1302 debug_opts | WayDebug `elem` ways = [
1303 #if defined(HAVE_LIBBFD)
1310 thread_opts | WayThreaded `elem` ways = [
1311 #if !defined(mingw32_TARGET_OS) && !defined(freebsd_TARGET_OS)
1314 #if defined(osf3_TARGET_OS)
1320 rc_objs <- maybeCreateManifest dflags output_fn
1322 let (md_c_flags, _) = machdepCCOpts dflags
1323 SysTools.runLink dflags (
1324 [ SysTools.Option verb
1325 , SysTools.Option "-o"
1326 , SysTools.FileOption "" output_fn
1328 ++ map SysTools.Option (
1331 #ifdef mingw32_TARGET_OS
1338 #ifdef darwin_TARGET_OS
1339 ++ framework_path_opts
1342 ++ pkg_lib_path_opts
1344 #ifdef darwin_TARGET_OS
1345 ++ pkg_framework_path_opts
1346 ++ pkg_framework_opts
1352 -- parallel only: move binary to another dir -- HWL
1353 success <- runPhase_MoveBinary dflags output_fn dep_packages
1354 if success then return ()
1355 else ghcError (InstallationError ("cannot move binary"))
1358 exeFileName :: DynFlags -> FilePath
1360 | Just s <- outputFile dflags =
1361 #if defined(mingw32_HOST_OS)
1362 if null (takeExtension s)
1369 #if defined(mingw32_HOST_OS)
1377 -> FilePath -- filename of executable
1378 -> IO [FilePath] -- extra objects to embed, maybe
1379 #ifndef mingw32_TARGET_OS
1380 maybeCreateManifest _ _ = do
1383 maybeCreateManifest dflags exe_filename = do
1384 if not (dopt Opt_GenManifest dflags) then return [] else do
1386 let manifest_filename = exe_filename <.> "manifest"
1388 writeFile manifest_filename $
1389 "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n"++
1390 " <assembly xmlns=\"urn:schemas-microsoft-com:asm.v1\" manifestVersion=\"1.0\">\n"++
1391 " <assemblyIdentity version=\"1.0.0.0\"\n"++
1392 " processorArchitecture=\"X86\"\n"++
1393 " name=\"" ++ dropExtension exe_filename ++ "\"\n"++
1394 " type=\"win32\"/>\n\n"++
1395 " <trustInfo xmlns=\"urn:schemas-microsoft-com:asm.v3\">\n"++
1397 " <requestedPrivileges>\n"++
1398 " <requestedExecutionLevel level=\"asInvoker\" uiAccess=\"false\"/>\n"++
1399 " </requestedPrivileges>\n"++
1404 -- Windows will find the manifest file if it is named foo.exe.manifest.
1405 -- However, for extra robustness, and so that we can move the binary around,
1406 -- we can embed the manifest in the binary itself using windres:
1407 if not (dopt Opt_EmbedManifest dflags) then return [] else do
1409 rc_filename <- newTempName dflags "rc"
1410 rc_obj_filename <- newTempName dflags (objectSuf dflags)
1412 writeFile rc_filename $
1413 "1 24 MOVEABLE PURE " ++ show manifest_filename ++ "\n"
1414 -- magic numbers :-)
1415 -- show is a bit hackish above, but we need to escape the
1416 -- backslashes in the path.
1418 let wr_opts = getOpts dflags opt_windres
1419 runWindres dflags $ map SysTools.Option $
1420 ["--input="++rc_filename,
1421 "--output="++rc_obj_filename,
1422 "--output-format=coff"]
1424 -- no FileOptions here: windres doesn't like seeing
1425 -- backslashes, apparently
1427 return [rc_obj_filename]
1431 linkDynLib :: DynFlags -> [String] -> [PackageId] -> IO ()
1432 linkDynLib dflags o_files dep_packages = do
1433 let verb = getVerbFlag dflags
1434 let o_file = outputFile dflags
1436 -- We don't want to link our dynamic libs against the RTS package,
1437 -- because the RTS lib comes in several flavours and we want to be
1438 -- able to pick the flavour when a binary is linked.
1439 pkgs <- getPreloadPackagesAnd dflags dep_packages
1440 let pkgs_no_rts = filter ((/= rtsPackageId) . packageConfigId) pkgs
1442 let pkg_lib_paths = collectLibraryPaths pkgs_no_rts
1443 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
1445 let lib_paths = libraryPaths dflags
1446 let lib_path_opts = map ("-L"++) lib_paths
1448 let pkg_link_opts = collectLinkOpts dflags pkgs_no_rts
1450 -- probably _stub.o files
1451 extra_ld_inputs <- readIORef v_Ld_inputs
1453 let (md_c_flags, _) = machdepCCOpts dflags
1454 let extra_ld_opts = getOpts dflags opt_l
1455 #if defined(mingw32_HOST_OS)
1456 -----------------------------------------------------------------------------
1458 -----------------------------------------------------------------------------
1459 let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
1461 SysTools.runLink dflags
1462 ([ SysTools.Option verb
1463 , SysTools.Option "-o"
1464 , SysTools.FileOption "" output_fn
1465 , SysTools.Option "-shared"
1466 , SysTools.FileOption "-Wl,--out-implib=" (output_fn ++ ".a")
1468 ++ map (SysTools.FileOption "") o_files
1469 ++ map SysTools.Option (
1474 ++ pkg_lib_path_opts
1477 #elif defined(darwin_TARGET_OS)
1478 -----------------------------------------------------------------------------
1479 -- Making a darwin dylib
1480 -----------------------------------------------------------------------------
1481 -- About the options used for Darwin:
1483 -- Apple's way of saying -shared
1484 -- -undefined dynamic_lookup:
1485 -- Without these options, we'd have to specify the correct dependencies
1486 -- for each of the dylibs. Note that we could (and should) do without this
1487 -- for all libraries except the RTS; all we need to do is to pass the
1488 -- correct HSfoo_dyn.dylib files to the link command.
1489 -- This feature requires Mac OS X 10.3 or later; there is a similar feature,
1490 -- -flat_namespace -undefined suppress, which works on earlier versions,
1491 -- but it has other disadvantages.
1493 -- Build the dynamic library as a single "module", i.e. no dynamic binding
1494 -- nonsense when referring to symbols from within the library. The NCG
1495 -- assumes that this option is specified (on i386, at least).
1496 -- -Wl,-macosx_version_min -Wl,10.3
1497 -- Tell the linker its safe to assume that the library will run on 10.3 or
1498 -- later, so that it will not complain about the use of the option
1499 -- -undefined dynamic_lookup above.
1501 -- Causes the dynamic linker to ignore the DYLD_LIBRARY_PATH when loading
1502 -- this lib and instead look for it at its absolute path.
1503 -- When installing the .dylibs (see target.mk), we'll change that path to
1504 -- point to the place they are installed. Therefore, we won't have to set
1505 -- up DYLD_LIBRARY_PATH specifically for ghc.
1506 -----------------------------------------------------------------------------
1508 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
1510 pwd <- getCurrentDirectory
1511 SysTools.runLink dflags
1512 ([ SysTools.Option verb
1513 , SysTools.Option "-dynamiclib"
1514 , SysTools.Option "-o"
1515 , SysTools.FileOption "" output_fn
1517 ++ map SysTools.Option (
1520 ++ [ "-undefined", "dynamic_lookup", "-single_module", "-Wl,-macosx_version_min","-Wl,10.3", "-install_name " ++ (pwd </> output_fn) ]
1524 ++ pkg_lib_path_opts
1528 -----------------------------------------------------------------------------
1530 -----------------------------------------------------------------------------
1532 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
1534 SysTools.runLink dflags
1535 ([ SysTools.Option verb
1536 , SysTools.Option "-o"
1537 , SysTools.FileOption "" output_fn
1539 ++ map SysTools.Option (
1542 ++ [ "-shared", "-Wl,-Bsymbolic" ] -- we need symbolic linking to resolve non-PIC intra-package-relocations
1546 ++ pkg_lib_path_opts
1550 -- -----------------------------------------------------------------------------
1553 doCpp :: DynFlags -> Bool -> Bool -> FilePath -> FilePath -> IO ()
1554 doCpp dflags raw include_cc_opts input_fn output_fn = do
1555 let hscpp_opts = getOpts dflags opt_P
1556 let cmdline_include_paths = includePaths dflags
1558 pkg_include_dirs <- getPackageIncludePath dflags []
1559 let include_paths = foldr (\ x xs -> "-I" : x : xs) []
1560 (cmdline_include_paths ++ pkg_include_dirs)
1562 let verb = getVerbFlag dflags
1565 | not include_cc_opts = []
1566 | otherwise = (optc ++ md_c_flags)
1568 optc = getOpts dflags opt_c
1569 (md_c_flags, _) = machdepCCOpts dflags
1571 let cpp_prog args | raw = SysTools.runCpp dflags args
1572 | otherwise = SysTools.runCc dflags (SysTools.Option "-E" : args)
1575 [ "-D" ++ HOST_OS ++ "_BUILD_OS=1",
1576 "-D" ++ HOST_ARCH ++ "_BUILD_ARCH=1",
1577 "-D" ++ TARGET_OS ++ "_HOST_OS=1",
1578 "-D" ++ TARGET_ARCH ++ "_HOST_ARCH=1" ]
1579 -- remember, in code we *compile*, the HOST is the same our TARGET,
1580 -- and BUILD is the same as our HOST.
1582 cpp_prog ([SysTools.Option verb]
1583 ++ map SysTools.Option include_paths
1584 ++ map SysTools.Option hsSourceCppOpts
1585 ++ map SysTools.Option hscpp_opts
1586 ++ map SysTools.Option cc_opts
1587 ++ map SysTools.Option target_defs
1588 ++ [ SysTools.Option "-x"
1589 , SysTools.Option "c"
1590 , SysTools.Option input_fn
1591 -- We hackily use Option instead of FileOption here, so that the file
1592 -- name is not back-slashed on Windows. cpp is capable of
1593 -- dealing with / in filenames, so it works fine. Furthermore
1594 -- if we put in backslashes, cpp outputs #line directives
1595 -- with *double* backslashes. And that in turn means that
1596 -- our error messages get double backslashes in them.
1597 -- In due course we should arrange that the lexer deals
1598 -- with these \\ escapes properly.
1599 , SysTools.Option "-o"
1600 , SysTools.FileOption "" output_fn
1603 cHaskell1Version :: String
1604 cHaskell1Version = "5" -- i.e., Haskell 98
1606 hsSourceCppOpts :: [String]
1607 -- Default CPP defines in Haskell source
1609 [ "-D__HASKELL1__="++cHaskell1Version
1610 , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
1612 , "-D__CONCURRENT_HASKELL__"
1616 -- -----------------------------------------------------------------------------
1619 hscNextPhase :: DynFlags -> HscSource -> HscTarget -> Phase
1620 hscNextPhase _ HsBootFile _ = StopLn
1621 hscNextPhase dflags _ hsc_lang =
1624 HscAsm | dopt Opt_SplitObjs dflags -> SplitMangle
1626 HscNothing -> StopLn
1627 HscInterpreted -> StopLn
1631 hscMaybeAdjustTarget :: DynFlags -> Phase -> HscSource -> HscTarget -> HscTarget
1632 hscMaybeAdjustTarget dflags stop _ current_hsc_lang
1635 keep_hc = dopt Opt_KeepHcFiles dflags
1637 -- don't change the lang if we're interpreting
1638 | current_hsc_lang == HscInterpreted = current_hsc_lang
1640 -- force -fvia-C if we are being asked for a .hc file
1641 | HCc <- stop = HscC
1643 -- otherwise, stick to the plan
1644 | otherwise = current_hsc_lang
1646 GLOBAL_VAR(v_Split_info, ("",0), (String,Int))
1647 -- The split prefix and number of files