1 -----------------------------------------------------------------------------
2 -- $Id: DriverPipeline.hs,v 1.85 2001/06/29 12:58:20 rrt Exp $
6 -- (c) Simon Marlow 2000
8 -----------------------------------------------------------------------------
10 #include "../includes/config.h"
12 module DriverPipeline (
14 -- interfaces for the batch-mode driver
15 GhcMode(..), getGhcMode, v_GhcMode,
16 genPipeline, runPipeline, pipeLoop,
18 -- interfaces for the compilation manager (interpreted/batch-mode)
19 preprocess, compile, CompResult(..),
21 -- batch-mode linking interface
27 #include "HsVersions.h"
37 import SysTools ( newTempName, addFilesToClean, getSysMan )
38 import qualified SysTools
50 import Time ( getClockTime )
63 -----------------------------------------------------------------------------
64 -- GHC modes of operation
66 modeFlag :: String -> Maybe GhcMode
67 modeFlag "-M" = Just $ DoMkDependHS
68 modeFlag "--mk-dll" = Just $ DoMkDLL
69 modeFlag "-E" = Just $ StopBefore Hsc
70 modeFlag "-C" = Just $ StopBefore HCc
71 modeFlag "-S" = Just $ StopBefore As
72 modeFlag "-c" = Just $ StopBefore Ln
73 modeFlag "--make" = Just $ DoMake
74 modeFlag "--interactive" = Just $ DoInteractive
77 getGhcMode :: [String]
78 -> IO ( [String] -- rest of command line
80 , String -- "GhcMode" flag
83 = case my_partition modeFlag flags of
84 ([] , rest) -> return (rest, DoLink, "") -- default is to do linking
85 ([(flag,one)], rest) -> return (rest, one, flag)
88 "only one of the flags -M, -E, -C, -S, -c, --make, --interactive, -mk-dll is allowed")
90 -----------------------------------------------------------------------------
93 -- Herein is all the magic about which phases to run in which order, whether
94 -- the intermediate files should be in TMPDIR or in the current directory,
95 -- what the suffix of the intermediate files should be, etc.
97 -- The following compilation pipeline algorithm is fairly hacky. A
98 -- better way to do this would be to express the whole compilation as a
99 -- data flow DAG, where the nodes are the intermediate files and the
100 -- edges are the compilation phases. This framework would also work
101 -- nicely if a haskell dependency generator was included in the
104 -- It would also deal much more cleanly with compilation phases that
105 -- generate multiple intermediates, (eg. hsc generates .hc, .hi, and
106 -- possibly stub files), where some of the output files need to be
107 -- processed further (eg. the stub files need to be compiled by the C
110 -- A cool thing to do would then be to execute the data flow graph
111 -- concurrently, automatically taking advantage of extra processors on
112 -- the host machine. For example, when compiling two Haskell files
113 -- where one depends on the other, the data flow graph would determine
114 -- that the C compiler from the first compilation can be overlapped
115 -- with the hsc compilation for the second file.
117 data IntermediateFileType
123 :: GhcMode -- when to stop
124 -> String -- "stop after" flag (for error messages)
125 -> Bool -- True => output is persistent
126 -> HscLang -- preferred output language for hsc
127 -> String -- original filename
128 -> IO [ -- list of phases to run for this file
130 IntermediateFileType, -- keep the output from this phase?
131 String) -- output file suffix
134 genPipeline todo stop_flag persistent_output lang filename
136 split <- readIORef v_Split_object_files
137 mangle <- readIORef v_Do_asm_mangling
138 keep_hc <- readIORef v_Keep_hc_files
139 keep_raw_s <- readIORef v_Keep_raw_s_files
140 keep_s <- readIORef v_Keep_s_files
141 osuf <- readIORef v_Object_suf
142 hcsuf <- readIORef v_HC_suf
145 ----------- ----- ---- --- -- -- - - -
146 (_basename, suffix) = splitFilename filename
148 start = startPhase suffix
150 -- special case for mkdependHS: .hspp files go through MkDependHS
151 start_phase | todo == DoMkDependHS && start == Hsc = MkDependHS
154 haskellish = haskellish_suffix suffix
155 cish = cish_suffix suffix
157 -- for a .hc file we need to force lang to HscC
158 real_lang | start_phase == HCc || start_phase == Mangle = HscC
162 ----------- ----- ---- --- -- -- - - -
164 | todo == DoMkDependHS = [ Unlit, Cpp, MkDependHS ]
168 HscC | split && mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle,
169 SplitMangle, SplitAs ]
170 | mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle, As ]
172 | otherwise -> [ Unlit, Cpp, Hsc, HCc, As ]
174 HscAsm | split -> [ Unlit, Cpp, Hsc, SplitMangle, SplitAs ]
175 | otherwise -> [ Unlit, Cpp, Hsc, As ]
177 HscJava | split -> not_valid
178 | otherwise -> error "not implemented: compiling via Java"
179 HscILX | split -> not_valid
180 | otherwise -> [ Unlit, Cpp, Hsc ]
184 | otherwise = [ ] -- just pass this file through to the linker
186 -- ToDo: this is somewhat cryptic
187 not_valid = throwDyn (UsageError ("invalid option combination"))
189 stop_phase = case todo of
190 StopBefore As | split -> SplitAs
191 StopBefore phase -> phase
194 ----------- ----- ---- --- -- -- - - -
196 -- this shouldn't happen.
197 if start_phase /= Ln && start_phase `notElem` pipeline
198 then throwDyn (CmdLineError ("can't find starting phase for "
202 -- if we can't find the phase we're supposed to stop before,
203 -- something has gone wrong. This test carefully avoids the
204 -- case where we aren't supposed to do any compilation, because the file
205 -- is already in linkable form (for example).
206 if start_phase `elem` pipeline &&
207 (stop_phase /= Ln && stop_phase `notElem` pipeline)
208 then throwDyn (UsageError
209 ("flag " ++ stop_flag
210 ++ " is incompatible with source file `" ++ filename ++ "'"))
214 -- .o and .hc suffixes can be overriden by command-line options:
215 myPhaseInputExt Ln | Just s <- osuf = s
216 myPhaseInputExt HCc | Just s <- hcsuf = s
217 myPhaseInputExt other = phaseInputExt other
220 :: [Phase] -- raw pipeline
221 -> Phase -- phase to stop before
222 -> [(Phase, IntermediateFileType, String{-file extension-})]
223 annotatePipeline [] _ = []
224 annotatePipeline (Ln:_) _ = []
225 annotatePipeline (phase:next_phase:ps) stop =
226 (phase, keep_this_output, myPhaseInputExt next_phase)
227 : annotatePipeline (next_phase:ps) stop
231 = if persistent_output then Persistent else Temporary
235 Mangle | keep_raw_s -> Persistent
236 As | keep_s -> Persistent
237 HCc | keep_hc -> Persistent
240 -- add information about output files to the pipeline
241 -- the suffix on an output file is determined by the next phase
242 -- in the pipeline, so we add linking to the end of the pipeline
243 -- to force the output from the final phase to be a .o file.
245 annotated_pipeline = annotatePipeline (pipeline ++ [Ln]) stop_phase
247 phase_ne p (p1,_,_) = (p1 /= p)
248 ----------- ----- ---- --- -- -- - - -
251 takeWhile (phase_ne stop_phase ) $
252 dropWhile (phase_ne start_phase) $
258 :: [ (Phase, IntermediateFileType, String) ] -- phases to run
259 -> String -- input file
260 -> Bool -- doing linking afterward?
261 -> Bool -- take into account -o when generating output?
262 -> IO String -- return final filename
264 runPipeline pipeline input_fn do_linking use_ofile
265 = pipeLoop pipeline input_fn do_linking use_ofile basename suffix
266 where (basename, suffix) = splitFilename input_fn
268 pipeLoop [] input_fn _ _ _ _ = return input_fn
269 pipeLoop ((phase, keep, o_suffix):phases)
270 input_fn do_linking use_ofile orig_basename orig_suffix
273 output_fn <- outputFileName (null phases) keep o_suffix
275 carry_on <- run_phase phase orig_basename orig_suffix input_fn output_fn
276 -- sometimes we bail out early, eg. when the compiler's recompilation
277 -- checker has determined that recompilation isn't necessary.
279 then do let (_,keep,final_suffix) = last phases
280 ofile <- outputFileName True keep final_suffix
282 else do -- carry on ...
284 pipeLoop phases output_fn do_linking use_ofile orig_basename orig_suffix
287 outputFileName last_phase keep suffix
288 = do o_file <- readIORef v_Output_file
289 if last_phase && not do_linking && use_ofile && isJust o_file
292 Nothing -> error "outputFileName"
293 else if keep == Persistent
294 then odir_ify (orig_basename ++ '.':suffix)
295 else newTempName suffix
297 -------------------------------------------------------------------------------
300 run_phase Unlit _basename _suff input_fn output_fn
301 = do unlit_flags <- getOpts opt_L
302 SysTools.runUnlit (unlit_flags ++ ["-h", input_fn, input_fn, output_fn])
305 -------------------------------------------------------------------------------
308 run_phase Cpp basename suff input_fn output_fn
309 = do src_opts <- getOptionsFromSource input_fn
310 unhandled_flags <- processArgs dynamic_flags src_opts []
311 checkProcessArgsResult unhandled_flags basename suff
313 do_cpp <- dynFlag cppFlag
316 hscpp_opts <- getOpts opt_P
317 hs_src_cpp_opts <- readIORef v_Hs_source_cpp_opts
319 cmdline_include_paths <- readIORef v_Include_paths
320 pkg_include_dirs <- getPackageIncludePath
321 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
325 (md_c_flags, _) <- machdepCCOpts
327 SysTools.runCpp ([verb]
332 ++ [ "-x", "c", input_fn, "-o", output_fn ])
334 -- ToDo: switch away from using 'echo' altogether (but need
335 -- a faster alternative than what's done below).
336 #if defined(mingw32_TARGET_OS) && defined(MINIMAL_UNIX_DEPS)
338 h <- openFile output_fn WriteMode
339 hPutStrLn h ("{-# LINE 1 \"" ++ input_fn ++ "\" #-}")
340 ls <- readFile input_fn -- inefficient, but it'll do for now.
341 -- ToDo: speed up via slurping.
346 SysTools.runSomething "Ineffective C pre-processor"
347 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" #-}' > "
348 ++ output_fn ++ " && cat " ++ input_fn
349 ++ " >> " ++ output_fn) []
353 -----------------------------------------------------------------------------
356 run_phase MkDependHS basename suff input_fn _output_fn = do
357 src <- readFile input_fn
358 let (import_sources, import_normals, _) = getImports src
360 let orig_fn = basename ++ '.':suff
361 deps_sources <- mapM (findDependency True orig_fn) import_sources
362 deps_normals <- mapM (findDependency False orig_fn) import_normals
363 let deps = deps_sources ++ deps_normals
365 osuf_opt <- readIORef v_Object_suf
366 let osuf = case osuf_opt of
367 Nothing -> phaseInputExt Ln
370 extra_suffixes <- readIORef v_Dep_suffixes
371 let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
372 ofiles = map (\suf -> basename ++ '.':suf) suffixes
374 objs <- mapM odir_ify ofiles
376 -- Handle for file that accumulates dependencies
377 hdl <- readIORef v_Dep_tmp_hdl
379 -- std dependency of the object(s) on the source file
380 hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
382 let genDep (dep, False {- not an hi file -}) =
383 hPutStrLn hdl (unwords objs ++ " : " ++ dep)
384 genDep (dep, True {- is an hi file -}) = do
385 hisuf <- readIORef v_Hi_suf
386 let dep_base = remove_suffix '.' dep
387 deps = (dep_base ++ hisuf)
388 : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
389 -- length objs should be == length deps
390 sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
392 mapM genDep [ d | Just d <- deps ]
396 -- add the lines to dep_makefile:
400 -- if the dependency is on something other than a .hi file:
401 -- this.o this.p_o ... : dep
403 -- if the import is {-# SOURCE #-}
404 -- this.o this.p_o ... : dep.hi-boot[-$vers]
407 -- this.o ... : dep.hi
408 -- this.p_o ... : dep.p_hi
411 -- (where .o is $osuf, and the other suffixes come from
412 -- the cmdline -s options).
414 -----------------------------------------------------------------------------
417 -- Compilation of a single module, in "legacy" mode (_not_ under
418 -- the direction of the compilation manager).
419 run_phase Hsc basename suff input_fn output_fn
422 -- we add the current directory (i.e. the directory in which
423 -- the .hs files resides) to the import path, since this is
424 -- what gcc does, and it's probably what you want.
425 let current_dir = getdir basename
427 paths <- readIORef v_Include_paths
428 writeIORef v_Include_paths (current_dir : paths)
430 -- figure out which header files to #include in a generated .hc file
431 c_includes <- getPackageCIncludes
432 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
434 let cc_injects = unlines (map mk_include
435 (c_includes ++ reverse cmdline_includes))
438 '"':_{-"-} -> "#include "++h_file
439 '<':_ -> "#include "++h_file
440 _ -> "#include \""++h_file++"\""
442 writeIORef v_HCHeader cc_injects
444 -- gather the imports and module name
445 (srcimps,imps,mod_name) <- getImportsFromFile input_fn
447 -- build a ModuleLocation to pass to hscMain.
448 Just (mod, location')
449 <- mkHomeModuleLocn mod_name basename (Just (basename ++ '.':suff))
451 -- take -ohi into account if present
452 ohi <- readIORef v_Output_hi
453 let location | Just fn <- ohi = location'{ ml_hi_file = fn }
454 | otherwise = location'
456 -- figure out if the source has changed, for recompilation avoidance.
457 -- only do this if we're eventually going to generate a .o file.
458 -- (ToDo: do when generating .hc files too?)
460 -- Setting source_unchanged to True means that M.o seems
461 -- to be up to date wrt M.hs; so no need to recompile unless imports have
462 -- changed (which the compiler itself figures out).
463 -- Setting source_unchanged to False tells the compiler that M.o is out of
464 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
465 do_recomp <- readIORef v_Recomp
466 todo <- readIORef v_GhcMode
467 expl_o_file <- readIORef v_Output_file
470 Nothing -> unJust "source_unchanged" (ml_obj_file location)
473 if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln ))
475 else do t1 <- getModificationTime (basename ++ '.':suff)
476 o_file_exists <- doesFileExist o_file
478 then return False -- Need to recompile
479 else do t2 <- getModificationTime o_file
485 dyn_flags <- getDynFlags
487 let dyn_flags' = dyn_flags { hscOutName = output_fn,
488 hscStubCOutName = basename ++ "_stub.c",
489 hscStubHOutName = basename ++ "_stub.h",
490 extCoreName = basename ++ ".core" }
493 pcs <- initPersistentCompilerState
494 result <- hscMain OneShot
496 location{ ml_hspp_file=Just input_fn }
500 emptyModuleEnv -- HomeSymbolTable
501 emptyModuleEnv -- HomeIfaceTable
506 HscFail pcs -> throwDyn (PhaseFailed "hsc" (ExitFailure 1));
508 HscNoRecomp pcs details iface -> do { SysTools.touch "Touching object file" o_file
511 HscRecomp pcs details iface stub_h_exists stub_c_exists
512 _maybe_interpreted_code -> do
515 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
518 Just stub_o -> add v_Ld_inputs stub_o
523 -----------------------------------------------------------------------------
526 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
527 -- way too many hacks, and I can't say I've ever used it anyway.
529 run_phase cc_phase basename suff input_fn output_fn
530 | cc_phase == Cc || cc_phase == HCc
531 = do cc_opts <- getOpts opt_c
532 cmdline_include_dirs <- readIORef v_Include_paths
534 let hcc = cc_phase == HCc
536 -- add package include paths even if we're just compiling
537 -- .c files; this is the Value Add(TM) that using
538 -- ghc instead of gcc gives you :)
539 pkg_include_dirs <- getPackageIncludePath
540 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
543 mangle <- readIORef v_Do_asm_mangling
544 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
548 o2 <- readIORef v_minus_o2_for_C
549 let opt_flag | o2 = "-O2"
552 pkg_extra_cc_opts <- getPackageExtraCcOpts
554 split_objs <- readIORef v_Split_object_files
555 let split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
558 excessPrecision <- readIORef v_Excess_precision
559 SysTools.runCc ([ "-x", "c", input_fn, "-o", output_fn ]
561 ++ (if cc_phase == HCc && mangle
564 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
565 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
568 ++ (if excessPrecision then [] else [ "-ffloat-store" ])
574 -- ToDo: postprocess the output from gcc
576 -----------------------------------------------------------------------------
579 run_phase Mangle _basename _suff input_fn output_fn
580 = do mangler_opts <- getOpts opt_m
581 machdep_opts <- if (prefixMatch "i386" cTARGETPLATFORM)
582 then do n_regs <- dynFlag stolen_x86_regs
583 return [ show n_regs ]
586 SysTools.runMangle (mangler_opts
587 ++ [ input_fn, output_fn ]
591 -----------------------------------------------------------------------------
594 run_phase SplitMangle _basename _suff input_fn _output_fn
595 = do -- tmp_pfx is the prefix used for the split .s files
596 -- We also use it as the file to contain the no. of split .s files (sigh)
597 split_s_prefix <- SysTools.newTempName "split"
598 let n_files_fn = split_s_prefix
600 SysTools.runSplit [input_fn, split_s_prefix, n_files_fn]
602 -- Save the number of split files for future references
603 s <- readFile n_files_fn
604 let n_files = read s :: Int
605 writeIORef v_Split_info (split_s_prefix, n_files)
607 -- Remember to delete all these files
608 addFilesToClean [ split_s_prefix ++ "__" ++ show n ++ ".s"
613 -----------------------------------------------------------------------------
616 run_phase As _basename _suff input_fn output_fn
617 = do as_opts <- getOpts opt_a
618 cmdline_include_paths <- readIORef v_Include_paths
620 SysTools.runAs (as_opts
621 ++ [ "-I" ++ p | p <- cmdline_include_paths ]
622 ++ [ "-c", input_fn, "-o", output_fn ])
625 run_phase SplitAs basename _suff _input_fn _output_fn
626 = do as_opts <- getOpts opt_a
628 (split_s_prefix, n) <- readIORef v_Split_info
630 odir <- readIORef v_Output_dir
631 let real_odir = case odir of
636 = do 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 SysTools.runAs (as_opts ++ ["-c", "-o", real_o, input_s])
642 mapM_ assemble_file [1..n]
645 -----------------------------------------------------------------------------
646 -- MoveBinary sort-of-phase
647 -- After having produced a binary, move it somewhere else and generate a
648 -- wrapper script calling the binary. Currently, we need this only in
649 -- a parallel way (i.e. in GUM), because PVM expects the binary in a
650 -- central directory.
651 -- This is called from doLink below, after linking. I haven't made it
652 -- a separate phase to minimise interfering with other modules, and
653 -- we don't need the generality of a phase (MoveBinary is always
654 -- done after linking and makes only sense in a parallel setup) -- HWL
656 run_phase_MoveBinary input_fn
659 pvm_root <- getEnv "PVM_ROOT"
660 pvm_arch <- getEnv "PVM_ARCH"
662 pvm_executable_base = "=" ++ input_fn
663 pvm_executable = pvm_root ++ "/bin/" ++ pvm_arch ++ "/" ++ pvm_executable_base
664 -- nuke old binary; maybe use configur'ed names for cp and rm?
665 system ("rm -f " ++ pvm_executable)
666 -- move the newly created binary into PVM land
667 system ("cp -p " ++ input_fn ++ " " ++ pvm_executable)
668 -- generate a wrapper script for running a parallel prg under PVM
669 writeFile input_fn (mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan)
672 -- generates a Perl skript starting a parallel prg under PVM
673 mk_pvm_wrapper_script :: String -> String -> String -> String
674 mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $
676 "eval 'exec perl -S $0 ${1+\"$@\"}'",
677 " if $running_under_some_shell;",
678 "# =!=!=!=!=!=!=!=!=!=!=!",
679 "# This script is automatically generated: DO NOT EDIT!!!",
680 "# Generated by Glasgow Haskell Compiler",
681 "# ngoqvam choHbogh vaj' vIHoHnISbej !!!!",
683 "$pvm_executable = '" ++ pvm_executable ++ "';",
684 "$pvm_executable_base = '" ++ pvm_executable_base ++ "';",
685 "$SysMan = '" ++ sysMan ++ "';",
687 {- ToDo: add the magical shortcuts again iff we actually use them -- HWL
688 "# first, some magical shortcuts to run "commands" on the binary",
689 "# (which is hidden)",
690 "if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {",
691 " local($cmd) = $1;",
692 " system("$cmd $pvm_executable");",
693 " exit(0); # all done",
696 "# Now, run the real binary; process the args first",
697 "$ENV{'PE'} = $pvm_executable_base;", -- ++ pvm_executable_base,
699 "$nprocessors = 0; # the default: as many PEs as machines in PVM config",
700 "@nonPVM_args = ();",
703 "args: while ($a = shift(@ARGV)) {",
704 " if ( $a eq '+RTS' ) {",
705 " $in_RTS_args = 1;",
706 " } elsif ( $a eq '-RTS' ) {",
707 " $in_RTS_args = 0;",
709 " if ( $a eq '-d' && $in_RTS_args ) {",
711 " } elsif ( $a =~ /^-qN(\\d+)/ && $in_RTS_args ) {",
712 " $nprocessors = $1;",
713 " } elsif ( $a =~ /^-qp(\\d+)/ && $in_RTS_args ) {",
714 " $nprocessors = $1;",
716 " push(@nonPVM_args, $a);",
720 "local($return_val) = 0;",
721 "# Start the parallel execution by calling SysMan",
722 "system(\"$SysMan $debug $pvm_executable $nprocessors @nonPVM_args\");",
724 "# ToDo: fix race condition moving files and flushing them!!",
725 "system(\"cp $ENV{'HOME'}/$pvm_executable_base.???.gr .\") if -f \"$ENV{'HOME'}/$pvm_executable_base.002.gr\";",
729 -----------------------------------------------------------------------------
730 -- Complain about non-dynamic flags in OPTIONS pragmas
732 checkProcessArgsResult flags basename suff
733 = do when (not (null flags)) (throwDyn (ProgramError (
734 basename ++ "." ++ suff
735 ++ ": static flags are not allowed in {-# OPTIONS #-} pragmas:\n\t"
736 ++ unwords flags)) (ExitFailure 1))
738 -----------------------------------------------------------------------------
741 doLink :: [String] -> IO ()
744 static <- readIORef v_Static
745 no_hs_main <- readIORef v_NoHsMain
747 o_file <- readIORef v_Output_file
748 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
750 pkg_lib_paths <- getPackageLibraryPath
751 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
753 lib_paths <- readIORef v_Library_paths
754 let lib_path_opts = map ("-L"++) lib_paths
756 pkg_libs <- getPackageLibraries
757 let imp = if static then "" else "_imp"
758 pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
760 libs <- readIORef v_Cmdline_libraries
761 let lib_opts = map ("-l"++) (reverse libs)
762 -- reverse because they're added in reverse order from the cmd line
764 pkg_extra_ld_opts <- getPackageExtraLdOpts
766 -- probably _stub.o files
767 extra_ld_inputs <- readIORef v_Ld_inputs
769 -- opts from -optl-<blah>
770 extra_ld_opts <- getStaticOpts v_Opt_l
772 rts_pkg <- getPackageDetails ["rts"]
773 std_pkg <- getPackageDetails ["std"]
774 let extra_os = if static || no_hs_main
776 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
777 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
779 (md_c_flags, _) <- machdepCCOpts
780 SysTools.runLink ( [verb, "-o", output_fn]
791 ++ if static && not no_hs_main then
792 #ifdef LEADING_UNDERSCORE
793 [ "-u _PrelMain_mainIO_closure" ,
794 "-u ___init_PrelMain"]
796 [ "-u PrelMain_mainIO_closure" ,
797 "-u __init_PrelMain"]
801 -- parallel only: move binary to another dir -- HWL
802 ways_ <- readIORef v_Ways
803 when (WayPar `elem` ways_)
804 (do success <- run_phase_MoveBinary output_fn
805 if success then return ()
806 else throwDyn (InstallationError ("cannot move binary to PVM dir")))
808 -----------------------------------------------------------------------------
809 -- Making a DLL (only for Win32)
811 doMkDLL :: [String] -> IO ()
814 static <- readIORef v_Static
815 no_hs_main <- readIORef v_NoHsMain
817 o_file <- readIORef v_Output_file
818 let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
820 pkg_lib_paths <- getPackageLibraryPath
821 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
823 lib_paths <- readIORef v_Library_paths
824 let lib_path_opts = map ("-L"++) lib_paths
826 pkg_libs <- getPackageLibraries
827 let imp = if static then "" else "_imp"
828 pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
830 libs <- readIORef v_Cmdline_libraries
831 let lib_opts = map ("-l"++) (reverse libs)
832 -- reverse because they're added in reverse order from the cmd line
834 pkg_extra_ld_opts <- getPackageExtraLdOpts
836 -- probably _stub.o files
837 extra_ld_inputs <- readIORef v_Ld_inputs
839 -- opts from -optdll-<blah>
840 extra_ld_opts <- getStaticOpts v_Opt_dll
842 rts_pkg <- getPackageDetails ["rts"]
843 std_pkg <- getPackageDetails ["std"]
845 let extra_os = if static || no_hs_main
847 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
848 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
850 (md_c_flags, _) <- machdepCCOpts
852 ([ verb, "-o", output_fn ]
856 ++ [ "--target=i386-mingw32" ]
863 ++ (case findPS (packString (concat extra_ld_opts)) (packString "--def") of
864 Nothing -> [ "--export-all" ]
869 -----------------------------------------------------------------------------
870 -- Just preprocess a file, put the result in a temp. file (used by the
871 -- compilation manager during the summary phase).
873 preprocess :: FilePath -> IO FilePath
874 preprocess filename =
875 ASSERT(haskellish_src_file filename)
876 do restoreDynFlags -- Restore to state of last save
877 pipeline <- genPipeline (StopBefore Hsc) ("preprocess") False
878 defaultHscLang filename
879 runPipeline pipeline filename False{-no linking-} False{-no -o flag-}
881 -----------------------------------------------------------------------------
882 -- Compile a single module, under the control of the compilation manager.
884 -- This is the interface between the compilation manager and the
885 -- compiler proper (hsc), where we deal with tedious details like
886 -- reading the OPTIONS pragma from the source file, and passing the
887 -- output of hsc through the C compiler.
889 -- The driver sits between 'compile' and 'hscMain', translating calls
890 -- to the former into calls to the latter, and results from the latter
891 -- into results from the former. It does things like preprocessing
892 -- the .hs file if necessary, and compiling up the .stub_c files to
893 -- generate Linkables.
895 -- NB. No old interface can also mean that the source has changed.
897 compile :: GhciMode -- distinguish batch from interactive
898 -> ModSummary -- summary, including source
899 -> Bool -- True <=> source unchanged
900 -> Bool -- True <=> have object
901 -> Maybe ModIface -- old interface, if available
902 -> HomeSymbolTable -- for home module ModDetails
903 -> HomeIfaceTable -- for home module Ifaces
904 -> PersistentCompilerState -- persistent compiler state
908 = CompOK PersistentCompilerState -- updated PCS
909 ModDetails -- new details (HST additions)
910 ModIface -- new iface (HIT additions)
912 -- new code; Nothing => compilation was not reqd
913 -- (old code is still valid)
915 | CompErrs PersistentCompilerState -- updated PCS
918 compile ghci_mode summary source_unchanged have_object
919 old_iface hst hit pcs = do
920 dyn_flags <- restoreDynFlags -- Restore to the state of the last save
924 (showSDoc (text "Compiling" <+> ppr (name_of_summary summary)))
926 let verb = verbosity dyn_flags
927 let location = ms_location summary
928 let input_fn = unJust "compile:hs" (ml_hs_file location)
929 let input_fnpp = unJust "compile:hspp" (ml_hspp_file location)
931 when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp))
933 opts <- getOptionsFromSource input_fnpp
934 processArgs dynamic_flags opts []
935 dyn_flags <- getDynFlags
937 let hsc_lang = hscLang dyn_flags
938 (basename, _) = splitFilename input_fn
940 output_fn <- case hsc_lang of
941 HscAsm -> newTempName (phaseInputExt As)
942 HscC -> newTempName (phaseInputExt HCc)
943 HscJava -> newTempName "java" -- ToDo
944 HscILX -> return (basename ++ ".ilx") -- newTempName "ilx" -- ToDo
945 HscInterpreted -> return (error "no output file")
947 let dyn_flags' = dyn_flags { hscOutName = output_fn,
948 hscStubCOutName = basename ++ "_stub.c",
949 hscStubHOutName = basename ++ "_stub.h",
950 extCoreName = basename ++ ".core" }
952 -- figure out which header files to #include in a generated .hc file
953 c_includes <- getPackageCIncludes
954 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
956 let cc_injects = unlines (map mk_include
957 (c_includes ++ reverse cmdline_includes))
960 '"':_{-"-} -> "#include "++h_file
961 '<':_ -> "#include "++h_file
962 _ -> "#include \""++h_file++"\""
964 writeIORef v_HCHeader cc_injects
967 hsc_result <- hscMain ghci_mode dyn_flags'
968 (ms_mod summary) location
969 source_unchanged have_object old_iface hst hit pcs
972 HscFail pcs -> return (CompErrs pcs)
974 HscNoRecomp pcs details iface -> return (CompOK pcs details iface Nothing)
976 HscRecomp pcs details iface
977 stub_h_exists stub_c_exists maybe_interpreted_code -> do
980 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
981 let stub_unlinked = case maybe_stub_o of
983 Just stub_o -> [ DotO stub_o ]
985 (hs_unlinked, unlinked_time) <-
988 -- in interpreted mode, just return the compiled code
989 -- as our "unlinked" object.
991 case maybe_interpreted_code of
992 Just (bcos,itbl_env) -> do tm <- getClockTime
993 return ([BCOs bcos itbl_env], tm)
994 Nothing -> panic "compile: no interpreted code"
996 -- we're in batch mode: finish the compilation pipeline.
997 _other -> do pipe <- genPipeline (StopBefore Ln) "" True
999 -- runPipeline takes input_fn so it can split off
1000 -- the base name and use it as the base of
1001 -- the output object file.
1002 let (basename, suffix) = splitFilename input_fn
1003 o_file <- pipeLoop pipe output_fn False False
1005 o_time <- getModificationTime o_file
1006 return ([DotO o_file], o_time)
1008 let linkable = LM unlinked_time (moduleName (ms_mod summary))
1009 (hs_unlinked ++ stub_unlinked)
1011 return (CompOK pcs details iface (Just linkable))
1014 -----------------------------------------------------------------------------
1015 -- stub .h and .c files (for foreign export support)
1017 compileStub dflags stub_c_exists
1018 | not stub_c_exists = return Nothing
1019 | stub_c_exists = do
1020 -- compile the _stub.c file w/ gcc
1021 let stub_c = hscStubCOutName dflags
1022 pipeline <- genPipeline (StopBefore Ln) "" True defaultHscLang stub_c
1023 stub_o <- runPipeline pipeline stub_c False{-no linking-}
1024 False{-no -o option-}
1026 return (Just stub_o)