1 -----------------------------------------------------------------------------
2 -- $Id: DriverPipeline.hs,v 1.98 2001/08/15 09:32:40 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, unDosifyPath )
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 -> (FilePath, String) -- original filename & its suffix
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,suffix)
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 start = startPhase suffix
148 -- special case for mkdependHS: .hspp files go through MkDependHS
149 start_phase | todo == DoMkDependHS && start == Hsc = MkDependHS
152 haskellish = haskellish_suffix suffix
153 cish = cish_suffix suffix
155 -- for a .hc file we need to force lang to HscC
156 real_lang | start_phase == HCc || start_phase == Mangle = HscC
160 ----------- ----- ---- --- -- -- - - -
162 | todo == DoMkDependHS = [ Unlit, Cpp, MkDependHS ]
166 HscC | split && mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle,
167 SplitMangle, SplitAs ]
168 | mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle, As ]
170 | otherwise -> [ Unlit, Cpp, Hsc, HCc, As ]
172 HscAsm | split -> [ Unlit, Cpp, Hsc, SplitMangle, SplitAs ]
173 | otherwise -> [ Unlit, Cpp, Hsc, As ]
175 HscJava | split -> not_valid
176 | otherwise -> error "not implemented: compiling via Java"
177 HscILX | split -> not_valid
178 | otherwise -> [ Unlit, Cpp, Hsc, Ilx2Il, Ilasm ]
182 | otherwise = [ ] -- just pass this file through to the linker
184 -- ToDo: this is somewhat cryptic
185 not_valid = throwDyn (UsageError ("invalid option combination"))
187 stop_phase = case todo of
188 StopBefore As | split -> SplitAs
189 StopBefore phase -> phase
192 ----------- ----- ---- --- -- -- - - -
194 -- this shouldn't happen.
195 if start_phase /= Ln && start_phase `notElem` pipeline
196 then throwDyn (CmdLineError ("can't find starting phase for "
200 -- if we can't find the phase we're supposed to stop before,
201 -- something has gone wrong. This test carefully avoids the
202 -- case where we aren't supposed to do any compilation, because the file
203 -- is already in linkable form (for example).
204 if start_phase `elem` pipeline &&
205 (stop_phase /= Ln && stop_phase `notElem` pipeline)
206 then throwDyn (UsageError
207 ("flag " ++ stop_flag
208 ++ " is incompatible with source file `" ++ filename ++ "'"))
212 -- .o and .hc suffixes can be overriden by command-line options:
213 myPhaseInputExt Ln | Just s <- osuf = s
214 myPhaseInputExt HCc | Just s <- hcsuf = s
215 myPhaseInputExt other = phaseInputExt other
218 :: [Phase] -- raw pipeline
219 -> Phase -- phase to stop before
220 -> [(Phase, IntermediateFileType, String{-file extension-})]
221 annotatePipeline [] _ = []
222 annotatePipeline (Ln:_) _ = []
223 annotatePipeline (phase:next_phase:ps) stop =
224 (phase, keep_this_output, myPhaseInputExt next_phase)
225 : annotatePipeline (next_phase:ps) stop
229 = if persistent_output then Persistent else Temporary
233 Mangle | keep_raw_s -> Persistent
234 As | keep_s -> Persistent
235 HCc | keep_hc -> Persistent
238 -- add information about output files to the pipeline
239 -- the suffix on an output file is determined by the next phase
240 -- in the pipeline, so we add linking to the end of the pipeline
241 -- to force the output from the final phase to be a .o file.
243 annotated_pipeline = annotatePipeline (pipeline ++ [Ln]) stop_phase
245 phase_ne p (p1,_,_) = (p1 /= p)
246 ----------- ----- ---- --- -- -- - - -
249 takeWhile (phase_ne stop_phase ) $
250 dropWhile (phase_ne start_phase) $
256 :: [ (Phase, IntermediateFileType, String) ] -- phases to run
257 -> (String,String) -- input file
258 -> Bool -- doing linking afterward?
259 -> Bool -- take into account -o when generating output?
260 -> IO (String, String) -- return final filename
262 runPipeline pipeline (input_fn,suffix) do_linking use_ofile
263 = pipeLoop pipeline (input_fn,suffix) do_linking use_ofile basename suffix
264 where (basename, _) = splitFilename input_fn
266 pipeLoop [] input_fn _ _ _ _ = return input_fn
267 pipeLoop ((phase, keep, o_suffix):phases)
268 (input_fn,real_suff) do_linking use_ofile orig_basename orig_suffix
271 output_fn <- outputFileName (null phases) keep o_suffix
273 mbCarryOn <- run_phase phase orig_basename orig_suffix input_fn output_fn
274 -- sometimes we bail out early, eg. when the compiler's recompilation
275 -- checker has determined that recompilation isn't necessary.
278 let (_,keep,final_suffix) = last phases
279 ofile <- outputFileName True keep final_suffix
280 return (ofile, final_suffix)
284 Notice that in order to keep the invariant that we can
285 determine a compilation pipeline's 'start phase' just
286 by looking at the input filename, the input filename
287 to the next stage/phase is associated here with the suffix
288 of the output file, *even* if it does not have that
291 Why is this important? Because we may run a compilation
292 pipeline in stages (cf. Main.main.compileFile's two stages),
293 so when generating the next stage we need to be precise
294 about what kind of file (=> suffix) is given as input.
296 [Not having to generate a pipeline in stages seems like
297 the right way to go, but I've punted on this for now --sof]
300 pipeLoop phases (fn, o_suffix) do_linking use_ofile
301 orig_basename orig_suffix
303 outputFileName last_phase keep suffix
304 = do o_file <- readIORef v_Output_file
305 if last_phase && not do_linking && use_ofile && isJust o_file
308 Nothing -> error "outputFileName"
309 else if keep == Persistent
310 then odir_ify (orig_basename ++ '.':suffix)
311 else newTempName suffix
314 -> String -- basename of original input source
315 -> String -- its extension
316 -> FilePath -- name of file which contains the input to this phase.
317 -> FilePath -- where to stick the result.
318 -> IO (Maybe FilePath)
319 -- Nothing => stop the compilation pipeline
320 -- Just fn => the result of this phase can be found in 'fn'
321 -- (this can either be 'input_fn' or 'output_fn').
322 -------------------------------------------------------------------------------
325 run_phase Unlit _basename _suff input_fn output_fn
326 = do unlit_flags <- getOpts opt_L
327 -- The -h option passes the file name for unlit to put in a #line directive;
328 -- we undosify it so that it doesn't contain backslashes in Windows, which
329 -- would disappear in error messages
330 SysTools.runUnlit (map SysTools.Option unlit_flags ++
331 [ SysTools.Option "-h"
332 , SysTools.Option input_fn
333 , SysTools.FileOption input_fn
334 , SysTools.FileOption output_fn
336 return (Just output_fn)
338 -------------------------------------------------------------------------------
341 run_phase Cpp basename suff input_fn output_fn
342 = do src_opts <- getOptionsFromSource input_fn
343 unhandled_flags <- processArgs dynamic_flags src_opts []
344 checkProcessArgsResult unhandled_flags basename suff
346 do_cpp <- dynFlag cppFlag
348 -- no need to preprocess CPP, just pass input file along
349 -- to the next phase of the pipeline.
350 return (Just input_fn)
352 hscpp_opts <- getOpts opt_P
353 hs_src_cpp_opts <- readIORef v_Hs_source_cpp_opts
355 cmdline_include_paths <- readIORef v_Include_paths
356 pkg_include_dirs <- getPackageIncludePath
357 let include_paths = foldr (\ x xs -> "-I" : x : xs) []
358 (cmdline_include_paths ++ pkg_include_dirs)
361 (md_c_flags, _) <- machdepCCOpts
363 SysTools.runCpp ([SysTools.Option verb]
364 ++ map SysTools.Option include_paths
365 ++ map SysTools.Option hs_src_cpp_opts
366 ++ map SysTools.Option hscpp_opts
367 ++ map SysTools.Option md_c_flags
368 ++ [ SysTools.Option "-x"
369 , SysTools.Option "c"
370 , SysTools.FileOption input_fn
371 , SysTools.Option "-o"
372 , SysTools.FileOption output_fn
374 return (Just output_fn)
376 -----------------------------------------------------------------------------
379 run_phase MkDependHS basename suff input_fn output_fn = do
380 src <- readFile input_fn
381 let (import_sources, import_normals, _) = getImports src
383 let orig_fn = basename ++ '.':suff
384 deps_sources <- mapM (findDependency True orig_fn) import_sources
385 deps_normals <- mapM (findDependency False orig_fn) import_normals
386 let deps = deps_sources ++ deps_normals
388 osuf_opt <- readIORef v_Object_suf
389 let osuf = case osuf_opt of
390 Nothing -> phaseInputExt Ln
393 extra_suffixes <- readIORef v_Dep_suffixes
394 let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
395 ofiles = map (\suf -> basename ++ '.':suf) suffixes
397 objs <- mapM odir_ify ofiles
399 -- Handle for file that accumulates dependencies
400 hdl <- readIORef v_Dep_tmp_hdl
402 -- std dependency of the object(s) on the source file
403 hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
405 let genDep (dep, False {- not an hi file -}) =
406 hPutStrLn hdl (unwords objs ++ " : " ++ dep)
407 genDep (dep, True {- is an hi file -}) = do
408 hisuf <- readIORef v_Hi_suf
409 let dep_base = remove_suffix '.' dep
410 deps = (dep_base ++ hisuf)
411 : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
412 -- length objs should be == length deps
413 sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
415 mapM genDep [ d | Just d <- deps ]
417 return (Just output_fn)
419 -- add the lines to dep_makefile:
423 -- if the dependency is on something other than a .hi file:
424 -- this.o this.p_o ... : dep
426 -- if the import is {-# SOURCE #-}
427 -- this.o this.p_o ... : dep.hi-boot[-$vers]
430 -- this.o ... : dep.hi
431 -- this.p_o ... : dep.p_hi
434 -- (where .o is $osuf, and the other suffixes come from
435 -- the cmdline -s options).
437 -----------------------------------------------------------------------------
440 -- Compilation of a single module, in "legacy" mode (_not_ under
441 -- the direction of the compilation manager).
442 run_phase Hsc basename suff input_fn output_fn
445 -- we add the current directory (i.e. the directory in which
446 -- the .hs files resides) to the import path, since this is
447 -- what gcc does, and it's probably what you want.
448 let current_dir = getdir basename
450 paths <- readIORef v_Include_paths
451 writeIORef v_Include_paths (current_dir : paths)
453 -- figure out which header files to #include in a generated .hc file
454 c_includes <- getPackageCIncludes
455 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
457 let cc_injects = unlines (map mk_include
458 (c_includes ++ reverse cmdline_includes))
461 '"':_{-"-} -> "#include "++h_file
462 '<':_ -> "#include "++h_file
463 _ -> "#include \""++h_file++"\""
465 writeIORef v_HCHeader cc_injects
467 -- gather the imports and module name
468 (srcimps,imps,mod_name) <- getImportsFromFile input_fn
470 -- build a ModuleLocation to pass to hscMain.
472 <- mkHomeModuleLocn mod_name basename (Just (basename ++ '.':suff))
474 -- take -ohi into account if present
475 ohi <- readIORef v_Output_hi
476 let location | Just fn <- ohi = location'{ ml_hi_file = fn }
477 | otherwise = location'
479 -- figure out if the source has changed, for recompilation avoidance.
480 -- only do this if we're eventually going to generate a .o file.
481 -- (ToDo: do when generating .hc files too?)
483 -- Setting source_unchanged to True means that M.o seems
484 -- to be up to date wrt M.hs; so no need to recompile unless imports have
485 -- changed (which the compiler itself figures out).
486 -- Setting source_unchanged to False tells the compiler that M.o is out of
487 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
488 do_recomp <- readIORef v_Recomp
489 todo <- readIORef v_GhcMode
490 expl_o_file <- readIORef v_Output_file
493 Nothing -> unJust "source_unchanged" (ml_obj_file location)
496 if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln ))
498 else do t1 <- getModificationTime (basename ++ '.':suff)
499 o_file_exists <- doesFileExist o_file
501 then return False -- Need to recompile
502 else do t2 <- getModificationTime o_file
508 dyn_flags <- getDynFlags
510 let dyn_flags' = dyn_flags { hscOutName = output_fn,
511 hscStubCOutName = basename ++ "_stub.c",
512 hscStubHOutName = basename ++ "_stub.h",
513 extCoreName = basename ++ ".core" }
516 pcs <- initPersistentCompilerState
517 result <- hscMain OneShot
519 location{ ml_hspp_file=Just input_fn }
523 emptyModuleEnv -- HomeSymbolTable
524 emptyModuleEnv -- HomeIfaceTable
529 HscFail pcs -> throwDyn (PhaseFailed "hsc" (ExitFailure 1));
531 HscNoRecomp pcs details iface -> do { SysTools.touch "Touching object file" 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
543 return (Just output_fn)
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_opts <- getOpts opt_c
555 cmdline_include_paths <- readIORef v_Include_paths
557 let hcc = cc_phase == HCc
559 -- add package include paths even if we're just compiling
560 -- .c files; this is the Value Add(TM) that using
561 -- ghc instead of gcc gives you :)
562 pkg_include_dirs <- getPackageIncludePath
563 let include_paths = foldr (\ x xs -> "-I" : x : xs) []
564 (cmdline_include_paths ++ pkg_include_dirs)
566 mangle <- readIORef v_Do_asm_mangling
567 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
571 o2 <- readIORef v_minus_o2_for_C
572 let opt_flag | o2 = "-O2"
575 pkg_extra_cc_opts <- getPackageExtraCcOpts
577 split_objs <- readIORef v_Split_object_files
578 let split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
581 excessPrecision <- readIORef v_Excess_precision
582 SysTools.runCc ([ SysTools.Option "-x", SysTools.Option "c"
583 , SysTools.FileOption input_fn
584 , SysTools.Option "-o"
585 , SysTools.FileOption output_fn
587 ++ map SysTools.Option (
589 ++ (if cc_phase == HCc && mangle
592 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
593 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
596 ++ (if excessPrecision then [] else [ "-ffloat-store" ])
600 return (Just output_fn)
602 -- ToDo: postprocess the output from gcc
604 -----------------------------------------------------------------------------
607 run_phase Mangle _basename _suff input_fn output_fn
608 = do mangler_opts <- getOpts opt_m
609 machdep_opts <- if (prefixMatch "i386" cTARGETPLATFORM)
610 then do n_regs <- dynFlag stolen_x86_regs
611 return [ show n_regs ]
614 SysTools.runMangle (map SysTools.Option mangler_opts
615 ++ [ SysTools.FileOption input_fn
616 , SysTools.FileOption output_fn
618 ++ map SysTools.Option machdep_opts)
619 return (Just output_fn)
621 -----------------------------------------------------------------------------
624 run_phase SplitMangle _basename _suff input_fn output_fn
625 = do -- tmp_pfx is the prefix used for the split .s files
626 -- We also use it as the file to contain the no. of split .s files (sigh)
627 split_s_prefix <- SysTools.newTempName "split"
628 let n_files_fn = split_s_prefix
630 SysTools.runSplit [ SysTools.FileOption input_fn
631 , SysTools.FileOption split_s_prefix
632 , SysTools.FileOption n_files_fn
635 -- Save the number of split files for future references
636 s <- readFile n_files_fn
637 let n_files = read s :: Int
638 writeIORef v_Split_info (split_s_prefix, n_files)
640 -- Remember to delete all these files
641 addFilesToClean [ split_s_prefix ++ "__" ++ show n ++ ".s"
644 return (Just output_fn)
646 -----------------------------------------------------------------------------
649 run_phase As _basename _suff input_fn output_fn
650 = do as_opts <- getOpts opt_a
651 cmdline_include_paths <- readIORef v_Include_paths
653 SysTools.runAs (map SysTools.Option as_opts
654 ++ [ SysTools.Option ("-I" ++ p) | p <- cmdline_include_paths ]
655 ++ [ SysTools.Option "-c"
656 , SysTools.FileOption input_fn
657 , SysTools.Option "-o"
658 , SysTools.FileOption output_fn
660 return (Just output_fn)
662 run_phase SplitAs basename _suff _input_fn output_fn
663 = do as_opts <- getOpts opt_a
665 (split_s_prefix, n) <- readIORef v_Split_info
667 odir <- readIORef v_Output_dir
668 let real_odir = case odir of
673 = do let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
674 let output_o = newdir real_odir
675 (basename ++ "__" ++ show n ++ ".o")
676 real_o <- osuf_ify output_o
677 SysTools.runAs (map SysTools.Option as_opts ++
678 [ SysTools.Option "-c"
679 , SysTools.Option "-o"
680 , SysTools.FileOption real_o
681 , SysTools.FileOption input_s
684 mapM_ assemble_file [1..n]
685 return (Just output_fn)
688 -----------------------------------------------------------------------------
690 -- Run ilx2il over the ILX output, getting an IL file
692 run_phase Ilx2Il _basename _suff input_fn output_fn
693 = do ilx2il_opts <- getOpts opt_I
694 SysTools.runIlx2il (ilx2il_opts
695 ++ [ "--no-add-suffix-to-assembly", "mscorlib",
696 "-o", output_fn, input_fn ])
697 return (Just output_fn)
699 -----------------------------------------------------------------------------
701 -- Run ilasm over the IL, getting a DLL
703 run_phase Ilasm _basename _suff input_fn output_fn
704 = do ilasm_opts <- getOpts opt_i
705 SysTools.runIlasm (ilasm_opts
706 ++ [ "/QUIET", "/DLL", "/OUT="++output_fn, input_fn ])
707 return (Just output_fn)
711 -----------------------------------------------------------------------------
712 -- MoveBinary sort-of-phase
713 -- After having produced a binary, move it somewhere else and generate a
714 -- wrapper script calling the binary. Currently, we need this only in
715 -- a parallel way (i.e. in GUM), because PVM expects the binary in a
716 -- central directory.
717 -- This is called from doLink below, after linking. I haven't made it
718 -- a separate phase to minimise interfering with other modules, and
719 -- we don't need the generality of a phase (MoveBinary is always
720 -- done after linking and makes only sense in a parallel setup) -- HWL
722 run_phase_MoveBinary input_fn
725 pvm_root <- getEnv "PVM_ROOT"
726 pvm_arch <- getEnv "PVM_ARCH"
728 pvm_executable_base = "=" ++ input_fn
729 pvm_executable = pvm_root ++ "/bin/" ++ pvm_arch ++ "/" ++ pvm_executable_base
730 -- nuke old binary; maybe use configur'ed names for cp and rm?
731 system ("rm -f " ++ pvm_executable)
732 -- move the newly created binary into PVM land
733 system ("cp -p " ++ input_fn ++ " " ++ pvm_executable)
734 -- generate a wrapper script for running a parallel prg under PVM
735 writeFile input_fn (mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan)
738 -- generates a Perl skript starting a parallel prg under PVM
739 mk_pvm_wrapper_script :: String -> String -> String -> String
740 mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $
742 "eval 'exec perl -S $0 ${1+\"$@\"}'",
743 " if $running_under_some_shell;",
744 "# =!=!=!=!=!=!=!=!=!=!=!",
745 "# This script is automatically generated: DO NOT EDIT!!!",
746 "# Generated by Glasgow Haskell Compiler",
747 "# ngoqvam choHbogh vaj' vIHoHnISbej !!!!",
749 "$pvm_executable = '" ++ pvm_executable ++ "';",
750 "$pvm_executable_base = '" ++ pvm_executable_base ++ "';",
751 "$SysMan = '" ++ sysMan ++ "';",
753 {- ToDo: add the magical shortcuts again iff we actually use them -- HWL
754 "# first, some magical shortcuts to run "commands" on the binary",
755 "# (which is hidden)",
756 "if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {",
757 " local($cmd) = $1;",
758 " system("$cmd $pvm_executable");",
759 " exit(0); # all done",
762 "# Now, run the real binary; process the args first",
763 "$ENV{'PE'} = $pvm_executable_base;", -- ++ pvm_executable_base,
765 "$nprocessors = 0; # the default: as many PEs as machines in PVM config",
766 "@nonPVM_args = ();",
769 "args: while ($a = shift(@ARGV)) {",
770 " if ( $a eq '+RTS' ) {",
771 " $in_RTS_args = 1;",
772 " } elsif ( $a eq '-RTS' ) {",
773 " $in_RTS_args = 0;",
775 " if ( $a eq '-d' && $in_RTS_args ) {",
777 " } elsif ( $a =~ /^-qN(\\d+)/ && $in_RTS_args ) {",
778 " $nprocessors = $1;",
779 " } elsif ( $a =~ /^-qp(\\d+)/ && $in_RTS_args ) {",
780 " $nprocessors = $1;",
782 " push(@nonPVM_args, $a);",
786 "local($return_val) = 0;",
787 "# Start the parallel execution by calling SysMan",
788 "system(\"$SysMan $debug $pvm_executable $nprocessors @nonPVM_args\");",
790 "# ToDo: fix race condition moving files and flushing them!!",
791 "system(\"cp $ENV{'HOME'}/$pvm_executable_base.???.gr .\") if -f \"$ENV{'HOME'}/$pvm_executable_base.002.gr\";",
795 -----------------------------------------------------------------------------
796 -- Complain about non-dynamic flags in OPTIONS pragmas
798 checkProcessArgsResult flags basename suff
799 = do when (not (null flags)) (throwDyn (ProgramError (
800 basename ++ "." ++ suff
801 ++ ": static flags are not allowed in {-# OPTIONS #-} pragmas:\n\t"
802 ++ unwords flags)) (ExitFailure 1))
804 -----------------------------------------------------------------------------
807 doLink :: [String] -> IO ()
810 static <- readIORef v_Static
811 no_hs_main <- readIORef v_NoHsMain
813 o_file <- readIORef v_Output_file
814 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
816 pkg_lib_paths <- getPackageLibraryPath
817 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
819 lib_paths <- readIORef v_Library_paths
820 let lib_path_opts = map ("-L"++) lib_paths
822 pkg_libs <- getPackageLibraries
823 let imp = if static then "" else "_imp"
824 pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
826 libs <- readIORef v_Cmdline_libraries
827 let lib_opts = map ("-l"++) (reverse libs)
828 -- reverse because they're added in reverse order from the cmd line
830 pkg_extra_ld_opts <- getPackageExtraLdOpts
832 -- probably _stub.o files
833 extra_ld_inputs <- readIORef v_Ld_inputs
835 -- opts from -optl-<blah>
836 extra_ld_opts <- getStaticOpts v_Opt_l
838 rts_pkg <- getPackageDetails ["rts"]
839 std_pkg <- getPackageDetails ["std"]
840 let extra_os = if static || no_hs_main
842 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
843 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
845 (md_c_flags, _) <- machdepCCOpts
846 SysTools.runLink ( [ SysTools.Option verb
847 , SysTools.Option "-o"
848 , SysTools.FileOption output_fn
850 ++ map SysTools.Option (
861 ++ if static && not no_hs_main then
862 #ifdef LEADING_UNDERSCORE
863 [ "-u", "_PrelMain_mainIO_closure" ,
864 "-u", "___init_PrelMain"]
866 [ "-u", prefixUnderscore "PrelMain_mainIO_closure" ,
867 "-u", prefixUnderscore "__init_PrelMain"]
871 -- parallel only: move binary to another dir -- HWL
872 ways_ <- readIORef v_Ways
873 when (WayPar `elem` ways_)
874 (do success <- run_phase_MoveBinary output_fn
875 if success then return ()
876 else throwDyn (InstallationError ("cannot move binary to PVM dir")))
878 -----------------------------------------------------------------------------
879 -- Making a DLL (only for Win32)
881 doMkDLL :: [String] -> IO ()
884 static <- readIORef v_Static
885 no_hs_main <- readIORef v_NoHsMain
887 o_file <- readIORef v_Output_file
888 let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
890 pkg_lib_paths <- getPackageLibraryPath
891 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
893 lib_paths <- readIORef v_Library_paths
894 let lib_path_opts = map ("-L"++) lib_paths
896 pkg_libs <- getPackageLibraries
897 let imp = if static then "" else "_imp"
898 pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
900 libs <- readIORef v_Cmdline_libraries
901 let lib_opts = map ("-l"++) (reverse libs)
902 -- reverse because they're added in reverse order from the cmd line
904 pkg_extra_ld_opts <- getPackageExtraLdOpts
906 -- probably _stub.o files
907 extra_ld_inputs <- readIORef v_Ld_inputs
909 -- opts from -optdll-<blah>
910 extra_ld_opts <- getStaticOpts v_Opt_dll
912 rts_pkg <- getPackageDetails ["rts"]
913 std_pkg <- getPackageDetails ["std"]
915 let extra_os = if static || no_hs_main
917 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
918 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
920 (md_c_flags, _) <- machdepCCOpts
922 ([ SysTools.Option verb
923 , SysTools.Option "-o"
924 , SysTools.FileOption output_fn
926 ++ map SysTools.Option (
930 ++ [ "--target=i386-mingw32" ]
937 ++ (case findPS (packString (concat extra_ld_opts)) (packString "--def") of
938 Nothing -> [ "--export-all" ]
943 -----------------------------------------------------------------------------
944 -- Just preprocess a file, put the result in a temp. file (used by the
945 -- compilation manager during the summary phase).
947 preprocess :: FilePath -> IO FilePath
948 preprocess filename =
949 ASSERT(haskellish_src_file filename)
950 do restoreDynFlags -- Restore to state of last save
951 pipeline <- genPipeline (StopBefore Hsc) ("preprocess") False
952 defaultHscLang (filename, getFileSuffix filename)
953 (fn,_) <- runPipeline pipeline (filename,getFileSuffix filename)
954 False{-no linking-} False{-no -o flag-}
957 -----------------------------------------------------------------------------
958 -- Compile a single module, under the control of the compilation manager.
960 -- This is the interface between the compilation manager and the
961 -- compiler proper (hsc), where we deal with tedious details like
962 -- reading the OPTIONS pragma from the source file, and passing the
963 -- output of hsc through the C compiler.
965 -- The driver sits between 'compile' and 'hscMain', translating calls
966 -- to the former into calls to the latter, and results from the latter
967 -- into results from the former. It does things like preprocessing
968 -- the .hs file if necessary, and compiling up the .stub_c files to
969 -- generate Linkables.
971 -- NB. No old interface can also mean that the source has changed.
973 compile :: GhciMode -- distinguish batch from interactive
974 -> ModSummary -- summary, including source
975 -> Bool -- True <=> source unchanged
976 -> Bool -- True <=> have object
977 -> Maybe ModIface -- old interface, if available
978 -> HomeSymbolTable -- for home module ModDetails
979 -> HomeIfaceTable -- for home module Ifaces
980 -> PersistentCompilerState -- persistent compiler state
984 = CompOK PersistentCompilerState -- updated PCS
985 ModDetails -- new details (HST additions)
986 ModIface -- new iface (HIT additions)
988 -- new code; Nothing => compilation was not reqd
989 -- (old code is still valid)
991 | CompErrs PersistentCompilerState -- updated PCS
994 compile ghci_mode summary source_unchanged have_object
995 old_iface hst hit pcs = do
996 dyn_flags <- restoreDynFlags -- Restore to the state of the last save
1000 (showSDoc (text "Compiling" <+> ppr (name_of_summary summary)))
1002 let verb = verbosity dyn_flags
1003 let location = ms_location summary
1004 let input_fn = unJust "compile:hs" (ml_hs_file location)
1005 let input_fnpp = unJust "compile:hspp" (ml_hspp_file location)
1007 when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp))
1009 opts <- getOptionsFromSource input_fnpp
1010 processArgs dynamic_flags opts []
1011 dyn_flags <- getDynFlags
1013 let hsc_lang = hscLang dyn_flags
1014 (basename, _) = splitFilename input_fn
1016 keep_hc <- readIORef v_Keep_hc_files
1017 keep_s <- readIORef v_Keep_s_files
1021 HscAsm | keep_s -> return (basename ++ '.':phaseInputExt As)
1022 | otherwise -> newTempName (phaseInputExt As)
1023 HscC | keep_hc -> return (basename ++ '.':phaseInputExt HCc)
1024 | otherwise -> newTempName (phaseInputExt HCc)
1025 HscJava -> newTempName "java" -- ToDo
1026 HscILX -> return (phaseInputExt Ilx2Il)
1027 HscInterpreted -> return (error "no output file")
1029 let dyn_flags' = dyn_flags { hscOutName = output_fn,
1030 hscStubCOutName = basename ++ "_stub.c",
1031 hscStubHOutName = basename ++ "_stub.h",
1032 extCoreName = basename ++ ".core" }
1034 -- figure out which header files to #include in a generated .hc file
1035 c_includes <- getPackageCIncludes
1036 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
1038 let cc_injects = unlines (map mk_include
1039 (c_includes ++ reverse cmdline_includes))
1042 '"':_{-"-} -> "#include "++h_file
1043 '<':_ -> "#include "++h_file
1044 _ -> "#include \""++h_file++"\""
1046 writeIORef v_HCHeader cc_injects
1049 hsc_result <- hscMain ghci_mode dyn_flags'
1050 (ms_mod summary) location
1051 source_unchanged have_object old_iface hst hit pcs
1054 HscFail pcs -> return (CompErrs pcs)
1056 HscNoRecomp pcs details iface -> return (CompOK pcs details iface Nothing)
1058 HscRecomp pcs details iface
1059 stub_h_exists stub_c_exists maybe_interpreted_code -> do
1062 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
1063 let stub_unlinked = case maybe_stub_o of
1065 Just stub_o -> [ DotO stub_o ]
1067 (hs_unlinked, unlinked_time) <-
1070 -- in interpreted mode, just return the compiled code
1071 -- as our "unlinked" object.
1073 case maybe_interpreted_code of
1075 Just (bcos,itbl_env) -> do tm <- getClockTime
1076 return ([BCOs bcos itbl_env], tm)
1078 Nothing -> panic "compile: no interpreted code"
1080 -- we're in batch mode: finish the compilation pipeline.
1081 _other -> do pipe <- genPipeline (StopBefore Ln) "" True
1082 hsc_lang (output_fn, getFileSuffix output_fn)
1083 -- runPipeline takes input_fn so it can split off
1084 -- the base name and use it as the base of
1085 -- the output object file.
1086 let (basename, suffix) = splitFilename input_fn
1088 pipeLoop pipe (output_fn, getFileSuffix output_fn)
1091 o_time <- getModificationTime o_file
1092 return ([DotO o_file], o_time)
1094 let linkable = LM unlinked_time (moduleName (ms_mod summary))
1095 (hs_unlinked ++ stub_unlinked)
1097 return (CompOK pcs details iface (Just linkable))
1100 -----------------------------------------------------------------------------
1101 -- stub .h and .c files (for foreign export support)
1103 compileStub dflags stub_c_exists
1104 | not stub_c_exists = return Nothing
1105 | stub_c_exists = do
1106 -- compile the _stub.c file w/ gcc
1107 let stub_c = hscStubCOutName dflags
1108 pipeline <- genPipeline (StopBefore Ln) "" True defaultHscLang (stub_c,"c")
1109 (stub_o,_) <- runPipeline pipeline (stub_c,"c") False{-no linking-}
1110 False{-no -o option-}
1111 return (Just stub_o)