1 -----------------------------------------------------------------------------
2 -- $Id: DriverPipeline.hs,v 1.71 2001/05/28 03:31:19 sof 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"
49 import Time ( getClockTime )
62 -----------------------------------------------------------------------------
63 -- GHC modes of operation
66 = DoMkDependHS -- ghc -M
67 | DoMkDLL -- ghc --mk-dll
68 | StopBefore Phase -- ghc -E | -C | -S | -c
69 | DoMake -- ghc --make
70 | DoInteractive -- ghc --interactive
71 | DoLink -- [ the default ]
74 GLOBAL_VAR(v_GhcMode, error "todo", GhcMode)
76 modeFlag :: String -> Maybe GhcMode
77 modeFlag "-M" = Just $ DoMkDependHS
78 modeFlag "--mk-dll" = Just $ DoMkDLL
79 modeFlag "-E" = Just $ StopBefore Hsc
80 modeFlag "-C" = Just $ StopBefore HCc
81 modeFlag "-S" = Just $ StopBefore As
82 modeFlag "-c" = Just $ StopBefore Ln
83 modeFlag "--make" = Just $ DoMake
84 modeFlag "--interactive" = Just $ DoInteractive
87 getGhcMode :: [String]
88 -> IO ( [String] -- rest of command line
90 , String -- "GhcMode" flag
93 = case my_partition modeFlag flags of
94 ([] , rest) -> return (rest, DoLink, "") -- default is to do linking
95 ([(flag,one)], rest) -> return (rest, one, flag)
98 "only one of the flags -M, -E, -C, -S, -c, --make, --interactive, -mk-dll is allowed")
100 -----------------------------------------------------------------------------
103 -- Herein is all the magic about which phases to run in which order, whether
104 -- the intermediate files should be in TMPDIR or in the current directory,
105 -- what the suffix of the intermediate files should be, etc.
107 -- The following compilation pipeline algorithm is fairly hacky. A
108 -- better way to do this would be to express the whole compilation as a
109 -- data flow DAG, where the nodes are the intermediate files and the
110 -- edges are the compilation phases. This framework would also work
111 -- nicely if a haskell dependency generator was included in the
114 -- It would also deal much more cleanly with compilation phases that
115 -- generate multiple intermediates, (eg. hsc generates .hc, .hi, and
116 -- possibly stub files), where some of the output files need to be
117 -- processed further (eg. the stub files need to be compiled by the C
120 -- A cool thing to do would then be to execute the data flow graph
121 -- concurrently, automatically taking advantage of extra processors on
122 -- the host machine. For example, when compiling two Haskell files
123 -- where one depends on the other, the data flow graph would determine
124 -- that the C compiler from the first compilation can be overlapped
125 -- with the hsc compilation for the second file.
127 data IntermediateFileType
133 :: GhcMode -- when to stop
134 -> String -- "stop after" flag (for error messages)
135 -> Bool -- True => output is persistent
136 -> HscLang -- preferred output language for hsc
137 -> String -- original filename
138 -> IO [ -- list of phases to run for this file
140 IntermediateFileType, -- keep the output from this phase?
141 String) -- output file suffix
144 genPipeline todo stop_flag persistent_output lang filename
146 split <- readIORef v_Split_object_files
147 mangle <- readIORef v_Do_asm_mangling
148 keep_hc <- readIORef v_Keep_hc_files
149 keep_raw_s <- readIORef v_Keep_raw_s_files
150 keep_s <- readIORef v_Keep_s_files
151 osuf <- readIORef v_Object_suf
152 hcsuf <- readIORef v_HC_suf
155 ----------- ----- ---- --- -- -- - - -
156 (_basename, suffix) = splitFilename filename
158 start = startPhase suffix
160 -- special case for mkdependHS: .hspp files go through MkDependHS
161 start_phase | todo == DoMkDependHS && start == Hsc = MkDependHS
164 haskellish = haskellish_suffix suffix
165 cish = cish_suffix suffix
167 -- for a .hc file we need to force lang to HscC
168 real_lang | start_phase == HCc || start_phase == Mangle = HscC
172 ----------- ----- ---- --- -- -- - - -
174 | todo == DoMkDependHS = [ Unlit, Cpp, MkDependHS ]
178 HscC | split && mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle,
179 SplitMangle, SplitAs ]
180 | mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle, As ]
182 | otherwise -> [ Unlit, Cpp, Hsc, HCc, As ]
184 HscAsm | split -> [ Unlit, Cpp, Hsc, SplitMangle, SplitAs ]
185 | otherwise -> [ Unlit, Cpp, Hsc, As ]
187 HscJava | split -> not_valid
188 | otherwise -> error "not implemented: compiling via Java"
189 HscILX | split -> not_valid
190 | otherwise -> [ Unlit, Cpp, Hsc ]
194 | otherwise = [ ] -- just pass this file through to the linker
196 -- ToDo: this is somewhat cryptic
198 not_valid = throwDyn (UsageError ("invalid option combination"))
199 ----------- ----- ---- --- -- -- - - -
201 -- this shouldn't happen.
202 if start_phase /= Ln && start_phase `notElem` pipeline
203 then throwDyn (CmdLineError ("can't find starting phase for "
208 -- .o and .hc suffixes can be overriden by command-line options:
209 myPhaseInputExt Ln | Just s <- osuf = s
210 myPhaseInputExt HCc | Just s <- hcsuf = s
211 myPhaseInputExt other = phaseInputExt other
214 :: [Phase] -- raw pipeline
215 -> Phase -- phase to stop before
216 -> [(Phase, IntermediateFileType, String{-file extension-})]
217 annotatePipeline [] _ = []
218 annotatePipeline (Ln:_) _ = []
219 annotatePipeline (phase:next_phase:ps) stop =
220 (phase, keep_this_output, myPhaseInputExt next_phase)
221 : annotatePipeline (next_phase:ps) stop
225 = if persistent_output then Persistent else Temporary
229 Mangle | keep_raw_s -> Persistent
230 As | keep_s -> Persistent
231 HCc | keep_hc -> Persistent
234 -- add information about output files to the pipeline
235 -- the suffix on an output file is determined by the next phase
236 -- in the pipeline, so we add linking to the end of the pipeline
237 -- to force the output from the final phase to be a .o file.
238 stop_phase = case todo of
239 StopBefore As | split -> SplitAs
240 StopBefore phase -> phase
244 annotated_pipeline = annotatePipeline (pipeline ++ [Ln]) stop_phase
246 phase_ne p (p1,_,_) = (p1 /= p)
247 ----------- ----- ---- --- -- -- - - -
249 -- if we can't find the phase we're supposed to stop before,
250 -- something has gone wrong. This test carefully avoids the
251 -- case where we aren't supposed to do any compilation, because the file
252 -- is already in linkable form (for example).
253 if start_phase `elem` pipeline &&
254 (stop_phase /= Ln && stop_phase `notElem` pipeline)
255 then throwDyn (UsageError
256 ("flag " ++ stop_flag
257 ++ " is incompatible with source file `" ++ filename ++ "'"))
261 takeWhile (phase_ne stop_phase ) $
262 dropWhile (phase_ne start_phase) $
268 :: [ (Phase, IntermediateFileType, String) ] -- phases to run
269 -> String -- input file
270 -> Bool -- doing linking afterward?
271 -> Bool -- take into account -o when generating output?
272 -> IO String -- return final filename
274 runPipeline pipeline input_fn do_linking use_ofile
275 = pipeLoop pipeline input_fn do_linking use_ofile basename suffix
276 where (basename, suffix) = splitFilename input_fn
278 pipeLoop [] input_fn _ _ _ _ = return input_fn
279 pipeLoop ((phase, keep, o_suffix):phases)
280 input_fn do_linking use_ofile orig_basename orig_suffix
283 output_fn <- outputFileName (null phases) keep o_suffix
285 carry_on <- run_phase phase orig_basename orig_suffix input_fn output_fn
286 -- sometimes we bail out early, eg. when the compiler's recompilation
287 -- checker has determined that recompilation isn't necessary.
289 then do let (_,keep,final_suffix) = last phases
290 ofile <- outputFileName True keep final_suffix
292 else do -- carry on ...
294 pipeLoop phases output_fn do_linking use_ofile orig_basename orig_suffix
297 outputFileName last_phase keep suffix
298 = do o_file <- readIORef v_Output_file
299 if last_phase && not do_linking && use_ofile && isJust o_file
302 Nothing -> error "outputFileName"
303 else if keep == Persistent
304 then odir_ify (orig_basename ++ '.':suffix)
305 else newTempName suffix
307 -------------------------------------------------------------------------------
310 run_phase Unlit _basename _suff input_fn output_fn
311 = do unlit <- readIORef v_Pgm_L
312 unlit_flags <- getOpts opt_L
313 runSomething "Literate pre-processor"
314 (unlit ++ unwords unlit_flags ++
315 " -h " ++ input_fn ++
320 -------------------------------------------------------------------------------
323 run_phase Cpp basename suff input_fn output_fn
324 = do src_opts <- getOptionsFromSource input_fn
325 unhandled_flags <- processArgs dynamic_flags src_opts []
326 checkProcessArgsResult unhandled_flags basename suff
328 do_cpp <- dynFlag cppFlag
331 cpp <- readIORef v_Pgm_P >>= prependToolDir
332 hscpp_opts <- getOpts opt_P
333 hs_src_cpp_opts <- readIORef v_Hs_source_cpp_opts
335 cmdline_include_paths <- readIORef v_Include_paths
336 pkg_include_dirs <- getPackageIncludePath
337 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
341 (md_c_flags, _) <- machdepCCOpts
343 runSomething "C pre-processor"
350 ++ [ "-x", "c", input_fn, "-o", output_fn ]
352 -- ToDo: switch away from using 'echo' alltogether (but need
353 -- a faster alternative than what's done below).
354 #if defined(mingw32_TARGET_OS) && defined(MINIMAL_UNIX_DEPS)
356 h <- openFile output_fn WriteMode
357 hPutStrLn h ("{-# LINE 1 \"" ++ input_fn ++ "\" #-}")
358 ls <- readFile input_fn -- inefficient, but it'll do for now.
359 -- ToDo: speed up via slurping.
361 hClose h) `catchAllIO`
362 (\_ -> throwDyn (PhaseFailed "Ineffective C pre-processor" (ExitFailure 1)))
365 runSomething "Ineffective C pre-processor"
366 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" #-}' > "
367 ++ output_fn ++ " && cat " ++ input_fn
368 ++ " >> " ++ output_fn)
372 -----------------------------------------------------------------------------
375 run_phase MkDependHS basename suff input_fn _output_fn = do
376 src <- readFile input_fn
377 let (import_sources, import_normals, module_name) = getImports src
379 let orig_fn = basename ++ '.':suff
380 deps_sources <- mapM (findDependency True orig_fn) import_sources
381 deps_normals <- mapM (findDependency False orig_fn) import_normals
382 let deps = deps_sources ++ deps_normals
384 osuf_opt <- readIORef v_Object_suf
385 let osuf = case osuf_opt of
386 Nothing -> phaseInputExt Ln
389 extra_suffixes <- readIORef v_Dep_suffixes
390 let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
391 ofiles = map (\suf -> basename ++ '.':suf) suffixes
393 objs <- mapM odir_ify ofiles
395 hdl <- readIORef v_Dep_tmp_hdl
397 -- std dependency of the object(s) on the source file
398 hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
400 let genDep (dep, False {- not an hi file -}) =
401 hPutStrLn hdl (unwords objs ++ " : " ++ dep)
402 genDep (dep, True {- is an hi file -}) = do
403 hisuf <- readIORef v_Hi_suf
404 let dep_base = remove_suffix '.' dep
405 deps = (dep_base ++ hisuf)
406 : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
407 -- length objs should be == length deps
408 sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
410 mapM genDep [ d | Just d <- deps ]
414 -- add the lines to dep_makefile:
418 -- if the dependency is on something other than a .hi file:
419 -- this.o this.p_o ... : dep
421 -- if the import is {-# SOURCE #-}
422 -- this.o this.p_o ... : dep.hi-boot[-$vers]
425 -- this.o ... : dep.hi
426 -- this.p_o ... : dep.p_hi
429 -- (where .o is $osuf, and the other suffixes come from
430 -- the cmdline -s options).
432 -----------------------------------------------------------------------------
435 -- Compilation of a single module, in "legacy" mode (_not_ under
436 -- the direction of the compilation manager).
437 run_phase Hsc basename suff input_fn output_fn
440 -- we add the current directory (i.e. the directory in which
441 -- the .hs files resides) to the import path, since this is
442 -- what gcc does, and it's probably what you want.
443 let current_dir = getdir basename
445 paths <- readIORef v_Include_paths
446 writeIORef v_Include_paths (current_dir : paths)
448 -- figure out where to put the .hi file
449 ohi <- readIORef v_Output_hi
450 hisuf <- readIORef v_Hi_suf
451 let hifile = case ohi of
452 Nothing -> basename ++ '.':hisuf
455 -- figure out which header files to #include in a generated .hc file
456 c_includes <- getPackageCIncludes
457 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
459 let cc_injects = unlines (map mk_include
460 (c_includes ++ reverse cmdline_includes))
463 '"':_{-"-} -> "#include "++h_file
464 '<':_ -> "#include "++h_file
465 _ -> "#include \""++h_file++"\""
467 writeIORef v_HCHeader cc_injects
469 -- figure out if the source has changed, for recompilation avoidance.
470 -- only do this if we're eventually going to generate a .o file.
471 -- (ToDo: do when generating .hc files too?)
473 -- Setting source_unchanged to True means that M.o seems
474 -- to be up to date wrt M.hs; so no need to recompile unless imports have
475 -- changed (which the compiler itself figures out).
476 -- Setting source_unchanged to False tells the compiler that M.o is out of
477 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
478 do_recomp <- readIORef v_Recomp
479 todo <- readIORef v_GhcMode
480 o_file' <- odir_ify (basename ++ '.':phaseInputExt Ln)
481 o_file <- osuf_ify o_file'
483 if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln ))
485 else do t1 <- getModificationTime (basename ++ '.':suff)
486 o_file_exists <- doesFileExist o_file
488 then return False -- Need to recompile
489 else do t2 <- getModificationTime o_file
494 -- build a ModuleLocation to pass to hscMain.
495 (srcimps,imps,mod_name) <- getImportsFromFile input_fn
498 <- mkHomeModuleLocn mod_name basename (basename ++ '.':suff)
501 dyn_flags <- readIORef v_DynFlags
503 let dyn_flags' = dyn_flags { hscOutName = output_fn,
504 hscStubCOutName = basename ++ "_stub.c",
505 hscStubHOutName = basename ++ "_stub.h" }
508 pcs <- initPersistentCompilerState
509 result <- hscMain OneShot
511 location{ ml_hspp_file=Just input_fn }
515 emptyModuleEnv -- HomeSymbolTable
516 emptyModuleEnv -- HomeIfaceTable
521 HscFail pcs -> throwDyn (PhaseFailed "hsc" (ExitFailure 1));
523 HscNoRecomp pcs details iface ->
525 #if defined(mingw32_TARGET_OS) && defined(MINIMAL_UNIX_DEPS)
526 touch <- readIORef v_Pgm_T;
527 runSomething "Touching object file" (unwords [dosifyPath touch, dosifyPath o_file]);
529 runSomething "Touching object file" (cTOUCH ++ o_file);
534 HscRecomp pcs details iface stub_h_exists stub_c_exists
535 _maybe_interpreted_code -> do
538 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
541 Just stub_o -> add v_Ld_inputs stub_o
546 -----------------------------------------------------------------------------
549 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
550 -- way too many hacks, and I can't say I've ever used it anyway.
552 run_phase cc_phase basename suff input_fn output_fn
553 | cc_phase == Cc || cc_phase == HCc
554 = do cc <- readIORef v_Pgm_c >>= prependToolDir >>= appendInstallDir
555 cc_opts <- (getOpts opt_c)
556 cmdline_include_dirs <- readIORef v_Include_paths
558 let hcc = cc_phase == HCc
560 -- add package include paths even if we're just compiling
561 -- .c files; this is the Value Add(TM) that using
562 -- ghc instead of gcc gives you :)
563 pkg_include_dirs <- getPackageIncludePath
564 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
567 mangle <- readIORef v_Do_asm_mangling
568 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
572 o2 <- readIORef v_minus_o2_for_C
573 let opt_flag | o2 = "-O2"
576 pkg_extra_cc_opts <- getPackageExtraCcOpts
578 split_objs <- readIORef v_Split_object_files
579 let split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
582 excessPrecision <- readIORef v_Excess_precision
583 runSomething "C Compiler"
584 (unwords ([ cc, "-x", "c", input_fn, "-o", output_fn ]
586 ++ (if cc_phase == HCc && mangle
589 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
590 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
593 ++ (if excessPrecision then [] else [ "-ffloat-store" ])
599 -- ToDo: postprocess the output from gcc
601 -----------------------------------------------------------------------------
604 run_phase Mangle _basename _suff input_fn output_fn
605 = do mangler <- readIORef v_Pgm_m
606 mangler_opts <- getOpts opt_m
608 if (prefixMatch "i386" cTARGETPLATFORM)
609 then do n_regs <- dynFlag stolen_x86_regs
610 return [ show n_regs ]
612 #if defined(mingw32_TARGET_OS) && defined(MINIMAL_UNIX_DEPS)
613 perl_path <- prependToolDir ("perl")
614 let real_mangler = unwords [perl_path, mangler]
616 let real_mangler = mangler
618 runSomething "Assembly Mangler"
619 (unwords (real_mangler : mangler_opts
620 ++ [ input_fn, output_fn ]
625 -----------------------------------------------------------------------------
628 run_phase SplitMangle _basename _suff input_fn _output_fn
629 = do splitter <- readIORef v_Pgm_s
630 -- this is the prefix used for the split .s files
631 tmp_pfx <- readIORef v_TmpDir
633 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
634 writeIORef v_Split_prefix split_s_prefix
635 addFilesToClean [split_s_prefix ++ "__*"] -- d:-)
637 -- allocate a tmp file to put the no. of split .s files in (sigh)
638 n_files <- newTempName "n_files"
640 #if defined(mingw32_TARGET_OS) && defined(MINIMAL_UNIX_DEPS)
641 perl_path <- prependToolDir ("perl")
642 let real_splitter = unwords [perl_path, splitter]
644 let real_splitter = splitter
646 runSomething "Split Assembly File"
647 (unwords [ real_splitter
653 -- save the number of split files for future references
654 s <- readFile n_files
655 let n = read s :: Int
656 writeIORef v_N_split_files n
659 -----------------------------------------------------------------------------
662 run_phase As _basename _suff input_fn output_fn
663 = do as <- readIORef v_Pgm_a >>= prependToolDir >>= appendInstallDir
664 as_opts <- getOpts opt_a
666 cmdline_include_paths <- readIORef v_Include_paths
667 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
668 runSomething "Assembler"
669 (unwords (as : as_opts
670 ++ cmdline_include_flags
671 ++ [ "-c", input_fn, "-o", output_fn ]
675 run_phase SplitAs basename _suff _input_fn _output_fn
676 = do as <- readIORef v_Pgm_a
677 as_opts <- getOpts opt_a
679 split_s_prefix <- readIORef v_Split_prefix
680 n <- readIORef v_N_split_files
682 odir <- readIORef v_Output_dir
683 let real_odir = case odir of
687 let assemble_file n = do
688 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
689 let output_o = newdir real_odir
690 (basename ++ "__" ++ show n ++ ".o")
691 real_o <- osuf_ify output_o
692 runSomething "Assembler"
693 (unwords (as : as_opts
694 ++ [ "-c", "-o", real_o, input_s ]
697 mapM_ assemble_file [1..n]
700 -----------------------------------------------------------------------------
701 -- MoveBinary sort-of-phase
702 -- After having produced a binary, move it somewhere else and generate a
703 -- wrapper script calling the binary. Currently, we need this only in
704 -- a parallel way (i.e. in GUM), because PVM expects the binary in a
705 -- central directory.
706 -- This is called from doLink below, after linking. I haven't made it
707 -- a separate phase to minimise interfering with other modules, and
708 -- we don't need the generality of a phase (MoveBinary is always
709 -- done after linking and makes only sense in a parallel setup) -- HWL
711 run_phase_MoveBinary input_fn
713 top_dir <- readIORef v_TopDir
714 pvm_root <- getEnv "PVM_ROOT"
715 pvm_arch <- getEnv "PVM_ARCH"
717 pvm_executable_base = "=" ++ input_fn
718 pvm_executable = pvm_root ++ "/bin/" ++ pvm_arch ++ "/" ++ pvm_executable_base
719 sysMan = top_dir ++ "/ghc/rts/parallel/SysMan";
720 -- nuke old binary; maybe use configur'ed names for cp and rm?
721 system ("rm -f " ++ pvm_executable)
722 -- move the newly created binary into PVM land
723 system ("cp -p " ++ input_fn ++ " " ++ pvm_executable)
724 -- generate a wrapper script for running a parallel prg under PVM
725 writeFile input_fn (mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan)
728 -- generates a Perl skript starting a parallel prg under PVM
729 mk_pvm_wrapper_script :: String -> String -> String -> String
730 mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $
732 "eval 'exec perl -S $0 ${1+\"$@\"}'",
733 " if $running_under_some_shell;",
734 "# =!=!=!=!=!=!=!=!=!=!=!",
735 "# This script is automatically generated: DO NOT EDIT!!!",
736 "# Generated by Glasgow Haskell Compiler",
737 "# ngoqvam choHbogh vaj' vIHoHnISbej !!!!",
739 "$pvm_executable = '" ++ pvm_executable ++ "';",
740 "$pvm_executable_base = '" ++ pvm_executable_base ++ "';",
741 "$SysMan = '" ++ sysMan ++ "';",
743 {- ToDo: add the magical shortcuts again iff we actually use them -- HWL
744 "# first, some magical shortcuts to run "commands" on the binary",
745 "# (which is hidden)",
746 "if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {",
747 " local($cmd) = $1;",
748 " system("$cmd $pvm_executable");",
749 " exit(0); # all done",
752 "# Now, run the real binary; process the args first",
753 "$ENV{'PE'} = $pvm_executable_base;", -- ++ pvm_executable_base,
755 "$nprocessors = 0; # the default: as many PEs as machines in PVM config",
756 "@nonPVM_args = ();",
759 "args: while ($a = shift(@ARGV)) {",
760 " if ( $a eq '+RTS' ) {",
761 " $in_RTS_args = 1;",
762 " } elsif ( $a eq '-RTS' ) {",
763 " $in_RTS_args = 0;",
765 " if ( $a eq '-d' && $in_RTS_args ) {",
767 " } elsif ( $a =~ /^-qN(\\d+)/ && $in_RTS_args ) {",
768 " $nprocessors = $1;",
769 " } elsif ( $a =~ /^-qp(\\d+)/ && $in_RTS_args ) {",
770 " $nprocessors = $1;",
772 " push(@nonPVM_args, $a);",
776 "local($return_val) = 0;",
777 "# Start the parallel execution by calling SysMan",
778 "system(\"$SysMan $debug $pvm_executable $nprocessors @nonPVM_args\");",
780 "# ToDo: fix race condition moving files and flushing them!!",
781 "system(\"cp $ENV{'HOME'}/$pvm_executable_base.???.gr .\") if -f \"$ENV{'HOME'}/$pvm_executable_base.002.gr\";",
785 -----------------------------------------------------------------------------
786 -- Complain about non-dynamic flags in OPTIONS pragmas
788 checkProcessArgsResult flags basename suff
789 = do when (not (null flags)) (throwDyn (ProgramError (
790 basename ++ "." ++ suff
791 ++ ": static flags are not allowed in {-# OPTIONS #-} pragmas:\n\t"
792 ++ unwords flags)) (ExitFailure 1))
794 -----------------------------------------------------------------------------
797 doLink :: [String] -> IO ()
799 ln <- readIORef v_Pgm_l >>= prependToolDir >>= appendInstallDir
801 static <- readIORef v_Static
802 let imp = if static then "" else "_imp"
803 no_hs_main <- readIORef v_NoHsMain
805 o_file <- readIORef v_Output_file
806 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
808 pkg_lib_paths <- getPackageLibraryPath
809 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
811 lib_paths <- readIORef v_Library_paths
812 let lib_path_opts = map ("-L"++) lib_paths
814 pkg_libs <- getPackageLibraries
815 let pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
817 libs <- readIORef v_Cmdline_libraries
818 let lib_opts = map ("-l"++) (reverse libs)
819 -- reverse because they're added in reverse order from the cmd line
821 pkg_extra_ld_opts <- getPackageExtraLdOpts
823 -- probably _stub.o files
824 extra_ld_inputs <- readIORef v_Ld_inputs
826 -- opts from -optl-<blah>
827 extra_ld_opts <- getStaticOpts v_Opt_l
829 rts_pkg <- getPackageDetails ["rts"]
830 std_pkg <- getPackageDetails ["std"]
831 #ifdef mingw32_TARGET_OS
832 let extra_os = if static || no_hs_main
834 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
835 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
837 (md_c_flags, _) <- machdepCCOpts
838 runSomething "Linker"
840 ([ ln, verb, "-o", output_fn ]
843 #ifdef mingw32_TARGET_OS
853 #ifdef mingw32_TARGET_OS
854 ++ if static then [ "-u _PrelMain_mainIO_closure" , "-u ___init_PrelMain"] else []
856 ++ [ "-u PrelMain_mainIO_closure" , "-u __init_PrelMain"]
860 -- parallel only: move binary to another dir -- HWL
861 ways_ <- readIORef v_Ways
862 when (WayPar `elem` ways_) (do
863 success <- run_phase_MoveBinary output_fn
864 if success then return ()
865 else throwDyn (InstallationError ("cannot move binary to PVM dir")))
867 -----------------------------------------------------------------------------
870 -- only for Win32, but bits that are #ifdefed in doLn are still #ifdefed here
871 -- in a vain attempt to aid future portability
872 doMkDLL :: [String] -> IO ()
874 ln <- readIORef v_Pgm_dll >>= prependToolDir >>= appendInstallDir
876 static <- readIORef v_Static
877 let imp = if static then "" else "_imp"
878 no_hs_main <- readIORef v_NoHsMain
880 o_file <- readIORef v_Output_file
881 let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
883 pkg_lib_paths <- getPackageLibraryPath
884 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
886 lib_paths <- readIORef v_Library_paths
887 let lib_path_opts = map ("-L"++) lib_paths
889 pkg_libs <- getPackageLibraries
890 let pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
892 libs <- readIORef v_Cmdline_libraries
893 let lib_opts = map ("-l"++) (reverse libs)
894 -- reverse because they're added in reverse order from the cmd line
896 pkg_extra_ld_opts <- getPackageExtraLdOpts
898 -- probably _stub.o files
899 extra_ld_inputs <- readIORef v_Ld_inputs
901 -- opts from -optdll-<blah>
902 extra_ld_opts <- getStaticOpts v_Opt_dll
904 rts_pkg <- getPackageDetails ["rts"]
905 std_pkg <- getPackageDetails ["std"]
906 #ifdef mingw32_TARGET_OS
907 let extra_os = if static || no_hs_main
909 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
910 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
912 (md_c_flags, _) <- machdepCCOpts
913 runSomething "DLL creator"
915 ([ ln, verb, "-o", output_fn ]
918 #ifdef mingw32_TARGET_OS
920 ++ [ "--target=i386-mingw32" ]
928 ++ (case findPS (packString (concat extra_ld_opts)) (packString "--def") of
929 Nothing -> [ "--export-all" ]
935 -----------------------------------------------------------------------------
936 -- Just preprocess a file, put the result in a temp. file (used by the
937 -- compilation manager during the summary phase).
939 preprocess :: FilePath -> IO FilePath
940 preprocess filename =
941 ASSERT(haskellish_src_file filename)
942 do init_dyn_flags <- readIORef v_InitDynFlags
943 writeIORef v_DynFlags init_dyn_flags
944 pipeline <- genPipeline (StopBefore Hsc) ("preprocess") False
945 defaultHscLang filename
946 runPipeline pipeline filename False{-no linking-} False{-no -o flag-}
948 -----------------------------------------------------------------------------
949 -- Compile a single module, under the control of the compilation manager.
951 -- This is the interface between the compilation manager and the
952 -- compiler proper (hsc), where we deal with tedious details like
953 -- reading the OPTIONS pragma from the source file, and passing the
954 -- output of hsc through the C compiler.
956 -- The driver sits between 'compile' and 'hscMain', translating calls
957 -- to the former into calls to the latter, and results from the latter
958 -- into results from the former. It does things like preprocessing
959 -- the .hs file if necessary, and compiling up the .stub_c files to
960 -- generate Linkables.
962 -- NB. No old interface can also mean that the source has changed.
964 compile :: GhciMode -- distinguish batch from interactive
965 -> ModSummary -- summary, including source
966 -> Bool -- True <=> source unchanged
967 -> Bool -- True <=> have object
968 -> Maybe ModIface -- old interface, if available
969 -> HomeSymbolTable -- for home module ModDetails
970 -> HomeIfaceTable -- for home module Ifaces
971 -> PersistentCompilerState -- persistent compiler state
975 = CompOK PersistentCompilerState -- updated PCS
976 ModDetails -- new details (HST additions)
977 ModIface -- new iface (HIT additions)
979 -- new code; Nothing => compilation was not reqd
980 -- (old code is still valid)
982 | CompErrs PersistentCompilerState -- updated PCS
985 compile ghci_mode summary source_unchanged have_object
986 old_iface hst hit pcs = do
987 init_dyn_flags <- readIORef v_InitDynFlags
988 writeIORef v_DynFlags init_dyn_flags
990 showPass init_dyn_flags
991 (showSDoc (text "Compiling" <+> ppr (name_of_summary summary)))
993 let verb = verbosity init_dyn_flags
994 let location = ms_location summary
995 let input_fn = unJust "compile:hs" (ml_hs_file location)
996 let input_fnpp = unJust "compile:hspp" (ml_hspp_file location)
998 when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp))
1000 opts <- getOptionsFromSource input_fnpp
1001 processArgs dynamic_flags opts []
1002 dyn_flags <- readIORef v_DynFlags
1004 let hsc_lang = hscLang dyn_flags
1005 (basename, _) = splitFilename input_fn
1007 output_fn <- case hsc_lang of
1008 HscAsm -> newTempName (phaseInputExt As)
1009 HscC -> newTempName (phaseInputExt HCc)
1010 HscJava -> newTempName "java" -- ToDo
1011 HscILX -> return (basename ++ ".ilx") -- newTempName "ilx" -- ToDo
1012 HscInterpreted -> return (error "no output file")
1014 let dyn_flags' = dyn_flags { hscOutName = output_fn,
1015 hscStubCOutName = basename ++ "_stub.c",
1016 hscStubHOutName = basename ++ "_stub.h" }
1018 -- figure out which header files to #include in a generated .hc file
1019 c_includes <- getPackageCIncludes
1020 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
1022 let cc_injects = unlines (map mk_include
1023 (c_includes ++ reverse cmdline_includes))
1026 '"':_{-"-} -> "#include "++h_file
1027 '<':_ -> "#include "++h_file
1028 _ -> "#include \""++h_file++"\""
1030 writeIORef v_HCHeader cc_injects
1033 hsc_result <- hscMain ghci_mode dyn_flags'
1034 (ms_mod summary) location
1035 source_unchanged have_object old_iface hst hit pcs
1038 HscFail pcs -> return (CompErrs pcs)
1040 HscNoRecomp pcs details iface -> return (CompOK pcs details iface Nothing)
1042 HscRecomp pcs details iface
1043 stub_h_exists stub_c_exists maybe_interpreted_code -> do
1046 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
1047 let stub_unlinked = case maybe_stub_o of
1049 Just stub_o -> [ DotO stub_o ]
1051 (hs_unlinked, unlinked_time) <-
1054 -- in interpreted mode, just return the compiled code
1055 -- as our "unlinked" object.
1057 case maybe_interpreted_code of
1058 Just (bcos,itbl_env) -> do tm <- getClockTime
1059 return ([BCOs bcos itbl_env], tm)
1060 Nothing -> panic "compile: no interpreted code"
1062 -- we're in batch mode: finish the compilation pipeline.
1063 _other -> do pipe <- genPipeline (StopBefore Ln) "" True
1065 -- runPipeline takes input_fn so it can split off
1066 -- the base name and use it as the base of
1067 -- the output object file.
1068 let (basename, suffix) = splitFilename input_fn
1069 o_file <- pipeLoop pipe output_fn False False
1071 o_time <- getModificationTime o_file
1072 return ([DotO o_file], o_time)
1074 let linkable = LM unlinked_time (moduleName (ms_mod summary))
1075 (hs_unlinked ++ stub_unlinked)
1077 return (CompOK pcs details iface (Just linkable))
1080 -----------------------------------------------------------------------------
1081 -- stub .h and .c files (for foreign export support)
1083 compileStub dflags stub_c_exists
1084 | not stub_c_exists = return Nothing
1085 | stub_c_exists = do
1086 -- compile the _stub.c file w/ gcc
1087 let stub_c = hscStubCOutName dflags
1088 pipeline <- genPipeline (StopBefore Ln) "" True defaultHscLang stub_c
1089 stub_o <- runPipeline pipeline stub_c False{-no linking-}
1090 False{-no -o option-}
1092 return (Just stub_o)