1 -----------------------------------------------------------------------------
2 -- $Id: DriverPipeline.hs,v 1.20 2000/11/13 14:34:37 sewardj Exp $
6 -- (c) Simon Marlow 2000
8 -----------------------------------------------------------------------------
10 module DriverPipeline (
12 -- interfaces for the batch-mode driver
13 GhcMode(..), getGhcMode, v_GhcMode,
14 genPipeline, runPipeline,
16 -- interfaces for the compilation manager (interpreted/batch-mode)
17 preprocess, compile, CompResult(..),
19 -- batch-mode linking interface
23 #include "HsVersions.h"
50 -----------------------------------------------------------------------------
51 -- GHC modes of operation
54 = DoMkDependHS -- ghc -M
55 | DoMkDLL -- ghc -mk-dll
56 | StopBefore Phase -- ghc -E | -C | -S | -c
57 | DoMake -- ghc --make
58 | DoInteractive -- ghc --interactive
59 | DoLink -- [ the default ]
62 GLOBAL_VAR(v_GhcMode, error "todo", GhcMode)
64 modeFlag :: String -> Maybe GhcMode
65 modeFlag "-M" = Just $ DoMkDependHS
66 modeFlag "-E" = Just $ StopBefore Hsc
67 modeFlag "-C" = Just $ StopBefore HCc
68 modeFlag "-S" = Just $ StopBefore As
69 modeFlag "-c" = Just $ StopBefore Ln
70 modeFlag "--make" = Just $ DoMake
71 modeFlag "--interactive" = Just $ DoInteractive
74 getGhcMode :: [String]
75 -> IO ( [String] -- rest of command line
77 , String -- "GhcMode" flag
80 = case my_partition modeFlag flags of
81 ([] , rest) -> return (rest, DoLink, "") -- default is to do linking
82 ([(flag,one)], rest) -> return (rest, one, flag)
85 "only one of the flags -M, -E, -C, -S, -c, --make, --interactive is allowed")
87 -----------------------------------------------------------------------------
90 -- Herein is all the magic about which phases to run in which order, whether
91 -- the intermediate files should be in /tmp or in the current directory,
92 -- what the suffix of the intermediate files should be, etc.
94 -- The following compilation pipeline algorithm is fairly hacky. A
95 -- better way to do this would be to express the whole comilation as a
96 -- data flow DAG, where the nodes are the intermediate files and the
97 -- edges are the compilation phases. This framework would also work
98 -- nicely if a haskell dependency generator was included in the
101 -- It would also deal much more cleanly with compilation phases that
102 -- generate multiple intermediates, (eg. hsc generates .hc, .hi, and
103 -- possibly stub files), where some of the output files need to be
104 -- processed further (eg. the stub files need to be compiled by the C
107 -- A cool thing to do would then be to execute the data flow graph
108 -- concurrently, automatically taking advantage of extra processors on
109 -- the host machine. For example, when compiling two Haskell files
110 -- where one depends on the other, the data flow graph would determine
111 -- that the C compiler from the first comilation can be overlapped
112 -- with the hsc comilation for the second file.
114 data IntermediateFileType
120 :: GhcMode -- when to stop
121 -> String -- "stop after" flag (for error messages)
122 -> Bool -- True => output is persistent
123 -> String -- original filename
124 -> IO [ -- list of phases to run for this file
126 IntermediateFileType, -- keep the output from this phase?
127 String) -- output file suffix
130 genPipeline todo stop_flag persistent_output filename
132 split <- readIORef v_Split_object_files
133 mangle <- readIORef v_Do_asm_mangling
134 lang <- readIORef v_Hsc_Lang
135 keep_hc <- readIORef v_Keep_hc_files
136 keep_raw_s <- readIORef v_Keep_raw_s_files
137 keep_s <- readIORef v_Keep_s_files
138 osuf <- readIORef v_Object_suf
141 ----------- ----- ---- --- -- -- - - -
142 (_basename, suffix) = splitFilename filename
144 start_phase = startPhase suffix
146 haskellish = haskellish_suffix suffix
147 cish = cish_suffix suffix
149 -- for a .hc file, or if the -C flag is given, we need to force lang to HscC
150 real_lang | suffix == "hc" = HscC
154 ----------- ----- ---- --- -- -- - - -
156 | todo == DoMkDependHS = [ Unlit, Cpp, MkDependHS ]
160 HscC | split && mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle,
161 SplitMangle, SplitAs ]
162 | mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle, As ]
164 | otherwise -> [ Unlit, Cpp, Hsc, HCc, As ]
166 HscAsm | split -> [ Unlit, Cpp, Hsc, SplitMangle, SplitAs ]
167 | otherwise -> [ Unlit, Cpp, Hsc, As ]
169 HscJava | split -> not_valid
170 | otherwise -> error "not implemented: compiling via Java"
174 | otherwise = [ ] -- just pass this file through to the linker
176 -- ToDo: this is somewhat cryptic
177 not_valid = throwDyn (OtherError ("invalid option combination"))
178 ----------- ----- ---- --- -- -- - - -
180 -- this shouldn't happen.
181 if start_phase /= Ln && start_phase `notElem` pipeline
182 then throwDyn (OtherError ("can't find starting phase for "
186 -- if we can't find the phase we're supposed to stop before,
187 -- something has gone wrong.
191 && phase `notElem` pipeline
192 && not (phase == As && SplitAs `elem` pipeline)) $
194 ("flag " ++ stop_flag
195 ++ " is incompatible with source file `" ++ filename ++ "'"))
199 ----------- ----- ---- --- -- -- - - -
200 myPhaseInputExt Ln = case osuf of Nothing -> phaseInputExt Ln
202 myPhaseInputExt other = phaseInputExt other
205 :: [Phase] -- raw pipeline
206 -> Phase -- phase to stop before
207 -> [(Phase, IntermediateFileType, String{-file extension-})]
208 annotatePipeline [] _ = []
209 annotatePipeline (Ln:_) _ = []
210 annotatePipeline (phase:next_phase:ps) stop =
211 (phase, keep_this_output, myPhaseInputExt next_phase)
212 : annotatePipeline (next_phase:ps) stop
216 = if persistent_output then Persistent else Temporary
220 Mangle | keep_raw_s -> Persistent
221 As | keep_s -> Persistent
222 HCc | keep_hc -> Persistent
225 -- add information about output files to the pipeline
226 -- the suffix on an output file is determined by the next phase
227 -- in the pipeline, so we add linking to the end of the pipeline
228 -- to force the output from the final phase to be a .o file.
229 stop_phase = case todo of StopBefore phase -> phase
232 annotated_pipeline = annotatePipeline (pipeline ++ [ Ln ]) stop_phase
234 phase_ne p (p1,_,_) = (p1 /= p)
235 ----------- ----- ---- --- -- -- - - -
238 dropWhile (phase_ne start_phase) .
239 foldr (\p ps -> if phase_ne stop_phase p then p:ps else []) []
244 :: [ (Phase, IntermediateFileType, String) ] -- phases to run
245 -> String -- input file
246 -> Bool -- doing linking afterward?
247 -> Bool -- take into account -o when generating output?
248 -> IO String -- return final filename
250 runPipeline pipeline input_fn do_linking use_ofile
251 = pipeLoop pipeline input_fn do_linking use_ofile basename suffix
252 where (basename, suffix) = splitFilename input_fn
254 pipeLoop [] input_fn _ _ _ _ = return input_fn
255 pipeLoop ((phase, keep, o_suffix):phases)
256 input_fn do_linking use_ofile orig_basename orig_suffix
259 output_fn <- outputFileName (null phases) keep o_suffix
261 carry_on <- run_phase phase orig_basename orig_suffix input_fn output_fn
262 -- sometimes we bail out early, eg. when the compiler's recompilation
263 -- checker has determined that recompilation isn't necessary.
265 then do let (_,keep,final_suffix) = last phases
266 ofile <- outputFileName True keep final_suffix
268 else do -- carry on ...
270 pipeLoop phases output_fn do_linking use_ofile orig_basename orig_suffix
273 outputFileName last_phase keep suffix
274 = do o_file <- readIORef v_Output_file
275 if last_phase && not do_linking && use_ofile && isJust o_file
278 Nothing -> error "outputFileName"
279 else if keep == Persistent
280 then odir_ify (orig_basename ++ '.':suffix)
281 else newTempName suffix
283 -------------------------------------------------------------------------------
286 run_phase Unlit _basename _suff input_fn output_fn
287 = do unlit <- readIORef v_Pgm_L
288 unlit_flags <- getOpts opt_L
289 run_something "Literate pre-processor"
290 ("echo '# 1 \"" ++input_fn++"\"' > "++output_fn++" && "
291 ++ unlit ++ ' ':input_fn ++ " - >> " ++ output_fn)
294 -------------------------------------------------------------------------------
297 run_phase Cpp basename suff input_fn output_fn
298 = do src_opts <- getOptionsFromSource input_fn
299 unhandled_flags <- processArgs dynamic_flags src_opts []
301 when (not (null unhandled_flags))
302 (throwDyn (OtherError (
303 basename ++ "." ++ suff
304 ++ ": static flags are not allowed in {-# OPTIONS #-} pragmas:\n\t"
305 ++ unwords unhandled_flags)) (ExitFailure 1))
307 do_cpp <- readState cpp_flag
310 cpp <- readIORef v_Pgm_P
311 hscpp_opts <- getOpts opt_P
312 hs_src_cpp_opts <- readIORef v_Hs_source_cpp_opts
314 cmdline_include_paths <- readIORef v_Include_paths
315 pkg_include_dirs <- getPackageIncludePath
316 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
320 run_something "C pre-processor"
322 (["echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}'", ">", output_fn, "&&",
327 ++ [ "-x", "c", input_fn, ">>", output_fn ]
330 run_something "Ineffective C pre-processor"
331 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}' > "
332 ++ output_fn ++ " && cat " ++ input_fn
333 ++ " >> " ++ output_fn)
336 -----------------------------------------------------------------------------
339 run_phase MkDependHS basename suff input_fn _output_fn = do
340 src <- readFile input_fn
341 let imports = getImports src
343 deps <- mapM (findDependency basename) imports
345 osuf_opt <- readIORef v_Object_suf
346 let osuf = case osuf_opt of
347 Nothing -> phaseInputExt Ln
350 extra_suffixes <- readIORef v_Dep_suffixes
351 let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
352 ofiles = map (\suf -> basename ++ '.':suf) suffixes
354 objs <- mapM odir_ify ofiles
356 hdl <- readIORef v_Dep_tmp_hdl
358 -- std dependency of the object(s) on the source file
359 hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
361 let genDep (dep, False {- not an hi file -}) =
362 hPutStrLn hdl (unwords objs ++ " : " ++ dep)
363 genDep (dep, True {- is an hi file -}) = do
364 hisuf <- readIORef v_Hi_suf
365 let dep_base = remove_suffix '.' dep
366 deps = (dep_base ++ hisuf)
367 : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
368 -- length objs should be == length deps
369 sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
371 mapM genDep [ d | Just d <- deps ]
375 -- add the lines to dep_makefile:
379 -- if the dependency is on something other than a .hi file:
380 -- this.o this.p_o ... : dep
382 -- if the import is {-# SOURCE #-}
383 -- this.o this.p_o ... : dep.hi-boot[-$vers]
386 -- this.o ... : dep.hi
387 -- this.p_o ... : dep.p_hi
390 -- (where .o is $osuf, and the other suffixes come from
391 -- the cmdline -s options).
393 -----------------------------------------------------------------------------
396 -- Compilation of a single module, in "legacy" mode (_not_ under
397 -- the direction of the compilation manager).
398 run_phase Hsc basename suff input_fn output_fn
401 -- we add the current directory (i.e. the directory in which
402 -- the .hs files resides) to the import path, since this is
403 -- what gcc does, and it's probably what you want.
404 let current_dir = getdir basename
406 paths <- readIORef v_Include_paths
407 writeIORef v_Include_paths (current_dir : paths)
409 -- figure out where to put the .hi file
410 ohi <- readIORef v_Output_hi
411 hisuf <- readIORef v_Hi_suf
412 let hifile = case ohi of
413 Nothing -> current_dir ++ "/" ++ basename
417 -- figure out if the source has changed, for recompilation avoidance.
418 -- only do this if we're eventually going to generate a .o file.
419 -- (ToDo: do when generating .hc files too?)
421 -- Setting source_unchanged to True means that M.o seems
422 -- to be up to date wrt M.hs; so no need to recompile unless imports have
423 -- changed (which the compiler itself figures out).
424 -- Setting source_unchanged to False tells the compiler that M.o is out of
425 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
426 do_recomp <- readIORef v_Recomp
427 todo <- readIORef v_GhcMode
428 o_file <- odir_ify (basename ++ '.':phaseInputExt Ln)
430 if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln ))
432 else do t1 <- getModificationTime (basename ++ '.':suff)
433 o_file_exists <- doesFileExist o_file
435 then return False -- Need to recompile
436 else do t2 <- getModificationTime o_file
441 -- build a ModuleLocation to pass to hscMain.
442 let location = ModuleLocation {
443 ml_hs_file = Nothing,
444 ml_hspp_file = Just input_fn,
445 ml_hi_file = Just hifile,
446 ml_obj_file = Just o_file
450 dyn_flags <- readIORef v_DynFlags
453 pcs <- initPersistentCompilerState
454 result <- hscMain dyn_flags{ hscOutName = output_fn }
458 emptyModuleEnv -- HomeSymbolTable
459 emptyModuleEnv -- HomeIfaceTable
464 HscFail pcs -> throwDyn (PhaseFailed "hsc" (ExitFailure 1));
466 HscOK details maybe_iface maybe_stub_h maybe_stub_c
467 _maybe_interpreted_code pcs -> do
470 maybe_stub_o <- dealWithStubs basename maybe_stub_h maybe_stub_c
473 Just stub_o -> add v_Ld_inputs stub_o
475 let keep_going = case maybe_iface of Just _ -> True; Nothing -> False
479 -----------------------------------------------------------------------------
482 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
483 -- way too many hacks, and I can't say I've ever used it anyway.
485 run_phase cc_phase _basename _suff input_fn output_fn
486 | cc_phase == Cc || cc_phase == HCc
487 = do cc <- readIORef v_Pgm_c
488 cc_opts <- (getOpts opt_c)
489 cmdline_include_dirs <- readIORef v_Include_paths
491 let hcc = cc_phase == HCc
493 -- add package include paths even if we're just compiling
494 -- .c files; this is the Value Add(TM) that using
495 -- ghc instead of gcc gives you :)
496 pkg_include_dirs <- getPackageIncludePath
497 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
500 c_includes <- getPackageCIncludes
501 cmdline_includes <- readState cmdline_hc_includes -- -#include options
503 let cc_injects | hcc = unlines (map mk_include
504 (c_includes ++ reverse cmdline_includes))
508 '"':_{-"-} -> "#include "++h_file
509 '<':_ -> "#include "++h_file
510 _ -> "#include \""++h_file++"\""
512 cc_help <- newTempName "c"
513 h <- openFile cc_help WriteMode
515 hPutStrLn h ("#include \"" ++ input_fn ++ "\"\n")
518 ccout <- newTempName "ccout"
520 mangle <- readIORef v_Do_asm_mangling
521 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
525 o2 <- readIORef v_minus_o2_for_C
526 let opt_flag | o2 = "-O2"
529 pkg_extra_cc_opts <- getPackageExtraCcOpts
531 split_objs <- readIORef v_Split_object_files
532 let split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
535 excessPrecision <- readIORef v_Excess_precision
537 run_something "C Compiler"
538 (unwords ([ cc, "-x", "c", cc_help, "-o", output_fn ]
540 ++ (if cc_phase == HCc && mangle
543 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
544 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
547 #ifdef mingw32_TARGET_OS
550 ++ (if excessPrecision then [] else [ "-ffloat-store" ])
557 -- ToDo: postprocess the output from gcc
559 -----------------------------------------------------------------------------
562 run_phase Mangle _basename _suff input_fn output_fn
563 = do mangler <- readIORef v_Pgm_m
564 mangler_opts <- getOpts opt_m
566 if (prefixMatch "i386" cTARGETPLATFORM)
567 then do n_regs <- readState stolen_x86_regs
568 return [ show n_regs ]
570 run_something "Assembly Mangler"
573 ++ [ input_fn, output_fn ]
578 -----------------------------------------------------------------------------
581 run_phase SplitMangle _basename _suff input_fn _output_fn
582 = do splitter <- readIORef v_Pgm_s
584 -- this is the prefix used for the split .s files
585 tmp_pfx <- readIORef v_TmpDir
587 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
588 writeIORef v_Split_prefix split_s_prefix
589 addFilesToClean [split_s_prefix ++ "__*"] -- d:-)
591 -- allocate a tmp file to put the no. of split .s files in (sigh)
592 n_files <- newTempName "n_files"
594 run_something "Split Assembly File"
601 -- save the number of split files for future references
602 s <- readFile n_files
603 let n = read s :: Int
604 writeIORef v_N_split_files n
607 -----------------------------------------------------------------------------
610 run_phase As _basename _suff input_fn output_fn
611 = do as <- readIORef v_Pgm_a
612 as_opts <- getOpts opt_a
614 cmdline_include_paths <- readIORef v_Include_paths
615 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
616 run_something "Assembler"
617 (unwords (as : as_opts
618 ++ cmdline_include_flags
619 ++ [ "-c", input_fn, "-o", output_fn ]
623 run_phase SplitAs basename _suff _input_fn _output_fn
624 = do as <- readIORef v_Pgm_a
625 as_opts <- getOpts opt_a
627 split_s_prefix <- readIORef v_Split_prefix
628 n <- readIORef v_N_split_files
630 odir <- readIORef v_Output_dir
631 let real_odir = case odir of
635 let assemble_file n = do
636 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
637 let output_o = newdir real_odir
638 (basename ++ "__" ++ show n ++ ".o")
639 real_o <- osuf_ify output_o
640 run_something "Assembler"
641 (unwords (as : as_opts
642 ++ [ "-c", "-o", real_o, input_s ]
645 mapM_ assemble_file [1..n]
648 -----------------------------------------------------------------------------
651 doLink :: [String] -> IO ()
653 ln <- readIORef v_Pgm_l
655 static <- readIORef v_Static
656 let imp = if static then "" else "_imp"
657 no_hs_main <- readIORef v_NoHsMain
659 o_file <- readIORef v_Output_file
660 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
662 pkg_lib_paths <- getPackageLibraryPath
663 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
665 lib_paths <- readIORef v_Library_paths
666 let lib_path_opts = map ("-L"++) lib_paths
668 pkg_libs <- getPackageLibraries
669 let pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
671 libs <- readIORef v_Cmdline_libraries
672 let lib_opts = map ("-l"++) (reverse libs)
673 -- reverse because they're added in reverse order from the cmd line
675 pkg_extra_ld_opts <- getPackageExtraLdOpts
677 -- probably _stub.o files
678 extra_ld_inputs <- readIORef v_Ld_inputs
680 -- opts from -optl-<blah>
681 extra_ld_opts <- getStaticOpts v_Opt_l
683 rts_pkg <- getPackageDetails ["rts"]
684 std_pkg <- getPackageDetails ["std"]
685 #ifdef mingw32_TARGET_OS
686 let extra_os = if static || no_hs_main
688 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
689 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
691 (md_c_flags, _) <- machdepCCOpts
692 run_something "Linker"
694 ([ ln, verb, "-o", output_fn ]
697 #ifdef mingw32_TARGET_OS
707 #ifdef mingw32_TARGET_OS
708 ++ if static then [ "-u _PrelMain_mainIO_closure" , "-u ___init_PrelMain"] else []
710 ++ [ "-u PrelMain_mainIO_closure" , "-u __init_PrelMain"]
715 -----------------------------------------------------------------------------
716 -- Just preprocess a file, put the result in a temp. file (used by the
717 -- compilation manager during the summary phase).
719 preprocess :: FilePath -> IO FilePath
720 preprocess filename =
721 ASSERT(haskellish_file filename)
722 do pipeline <- genPipeline (StopBefore Hsc) ("preprocess") False filename
723 runPipeline pipeline filename False{-no linking-} False{-no -o flag-}
726 -----------------------------------------------------------------------------
727 -- Compile a single module, under the control of the compilation manager.
729 -- This is the interface between the compilation manager and the
730 -- compiler proper (hsc), where we deal with tedious details like
731 -- reading the OPTIONS pragma from the source file, and passing the
732 -- output of hsc through the C compiler.
734 -- The driver sits between 'compile' and 'hscMain', translating calls
735 -- to the former into calls to the latter, and results from the latter
736 -- into results from the former. It does things like preprocessing
737 -- the .hs file if necessary, and compiling up the .stub_c files to
738 -- generate Linkables.
740 compile :: ModSummary -- summary, including source
741 -> Maybe ModIface -- old interface, if available
742 -> HomeSymbolTable -- for home module ModDetails
743 -> HomeIfaceTable -- for home module Ifaces
744 -> PersistentCompilerState -- persistent compiler state
748 = CompOK ModDetails -- new details (HST additions)
749 (Maybe (ModIface, Linkable))
750 -- summary and code; Nothing => compilation not reqd
751 -- (old summary and code are still valid)
752 PersistentCompilerState -- updated PCS
754 | CompErrs PersistentCompilerState -- updated PCS
757 compile summary old_iface hst hit pcs = do
758 verb <- readIORef v_Verbose
759 when verb (hPutStrLn stderr
760 (showSDoc (text "compile: compiling"
761 <+> ppr (name_of_summary summary))))
763 init_dyn_flags <- readIORef v_InitDynFlags
764 writeIORef v_DynFlags init_dyn_flags
766 let location = ms_location summary
767 let input_fn = unJust (ml_hs_file location) "compile:hs"
769 when verb (hPutStrLn stderr ("compile: input file " ++ input_fn))
771 opts <- getOptionsFromSource input_fn
772 processArgs dynamic_flags opts []
773 dyn_flags <- readIORef v_DynFlags
775 hsc_lang <- readIORef v_Hsc_Lang
776 output_fn <- case hsc_lang of
777 HscAsm -> newTempName (phaseInputExt As)
778 HscC -> newTempName (phaseInputExt HCc)
779 HscJava -> newTempName "java" -- ToDo
780 HscInterpreted -> return (error "no output file")
783 hsc_result <- hscMain dyn_flags{ hscOutName = output_fn }
784 (panic "compile:source_unchanged")
785 location old_iface hst hit pcs
788 HscFail pcs -> return (CompErrs pcs);
790 HscOK details maybe_iface
791 maybe_stub_h maybe_stub_c maybe_interpreted_code pcs -> do
793 -- if no compilation happened, bail out early
794 case maybe_iface of {
795 Nothing -> return (CompOK details Nothing pcs);
798 let (basename, _) = splitFilename input_fn
799 maybe_stub_o <- dealWithStubs basename maybe_stub_h maybe_stub_c
800 let stub_unlinked = case maybe_stub_o of
802 Just stub_o -> [ DotO stub_o ]
807 -- in interpreted mode, just return the compiled code
808 -- as our "unlinked" object.
810 case maybe_interpreted_code of
811 Just (code,itbl_env) -> return [Trees code itbl_env]
812 Nothing -> panic "compile: no interpreted code"
814 -- we're in batch mode: finish the compilation pipeline.
815 _other -> do pipe <- genPipeline (StopBefore Ln) "" True output_fn
816 o_file <- runPipeline pipe output_fn False False
817 return [ DotO o_file ]
819 let linkable = LM (moduleName (ms_mod summary))
820 (hs_unlinked ++ stub_unlinked)
822 return (CompOK details (Just (iface, linkable)) pcs)
826 -----------------------------------------------------------------------------
827 -- stub .h and .c files (for foreign export support)
829 dealWithStubs basename maybe_stub_h maybe_stub_c
831 = do let stub_h = basename ++ "_stub.h"
832 let stub_c = basename ++ "_stub.c"
834 -- copy the .stub_h file into the current dir if necessary
837 Just tmp_stub_h -> do
838 run_something "Copy stub .h file"
839 ("cp " ++ tmp_stub_h ++ ' ':stub_h)
841 -- #include <..._stub.h> in .hc file
842 addCmdlineHCInclude tmp_stub_h -- hack
844 -- copy the .stub_c file into the current dir, and compile it, if necessary
846 Nothing -> return Nothing
847 Just tmp_stub_c -> do -- copy the _stub.c file into the current dir
848 run_something "Copy stub .c file"
850 "rm -f", stub_c, "&&",
851 "echo \'#include \""++stub_h++"\"\' >"++stub_c, " &&",
852 "cat", tmp_stub_c, ">> ", stub_c
855 -- compile the _stub.c file w/ gcc
856 pipeline <- genPipeline (StopBefore Ln) "" True stub_c
857 stub_o <- runPipeline pipeline stub_c False{-no linking-}
858 False{-no -o option-}