1 -----------------------------------------------------------------------------
2 -- $Id: DriverPipeline.hs,v 1.87 2001/07/11 01:27:04 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"
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 mbCarryOn <- 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.
280 let (_,keep,final_suffix) = last phases
281 ofile <- outputFileName True keep final_suffix
284 Just fn -> pipeLoop phases fn do_linking use_ofile orig_basename orig_suffix
286 outputFileName last_phase keep suffix
287 = do o_file <- readIORef v_Output_file
288 if last_phase && not do_linking && use_ofile && isJust o_file
291 Nothing -> error "outputFileName"
292 else if keep == Persistent
293 then odir_ify (orig_basename ++ '.':suffix)
294 else newTempName suffix
296 -------------------------------------------------------------------------------
299 run_phase Unlit _basename _suff input_fn output_fn
300 = do unlit_flags <- getOpts opt_L
301 SysTools.runUnlit (unlit_flags ++ ["-h", input_fn, input_fn, output_fn])
302 return (Just output_fn)
304 -------------------------------------------------------------------------------
307 run_phase Cpp basename suff input_fn output_fn
308 = do src_opts <- getOptionsFromSource input_fn
309 unhandled_flags <- processArgs dynamic_flags src_opts []
310 checkProcessArgsResult unhandled_flags basename suff
312 do_cpp <- dynFlag cppFlag
314 -- no need to preprocess CPP, just pass input file along
315 -- to the next phase of the pipeline.
316 return (Just input_fn)
318 hscpp_opts <- getOpts opt_P
319 hs_src_cpp_opts <- readIORef v_Hs_source_cpp_opts
321 cmdline_include_paths <- readIORef v_Include_paths
322 pkg_include_dirs <- getPackageIncludePath
323 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
327 (md_c_flags, _) <- machdepCCOpts
329 SysTools.runCpp ([verb]
334 ++ [ "-x", "c", input_fn, "-o", output_fn ])
335 return (Just output_fn)
337 -----------------------------------------------------------------------------
340 run_phase MkDependHS basename suff input_fn output_fn = do
341 src <- readFile input_fn
342 let (import_sources, import_normals, _) = getImports src
344 let orig_fn = basename ++ '.':suff
345 deps_sources <- mapM (findDependency True orig_fn) import_sources
346 deps_normals <- mapM (findDependency False orig_fn) import_normals
347 let deps = deps_sources ++ deps_normals
349 osuf_opt <- readIORef v_Object_suf
350 let osuf = case osuf_opt of
351 Nothing -> phaseInputExt Ln
354 extra_suffixes <- readIORef v_Dep_suffixes
355 let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
356 ofiles = map (\suf -> basename ++ '.':suf) suffixes
358 objs <- mapM odir_ify ofiles
360 -- Handle for file that accumulates dependencies
361 hdl <- readIORef v_Dep_tmp_hdl
363 -- std dependency of the object(s) on the source file
364 hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
366 let genDep (dep, False {- not an hi file -}) =
367 hPutStrLn hdl (unwords objs ++ " : " ++ dep)
368 genDep (dep, True {- is an hi file -}) = do
369 hisuf <- readIORef v_Hi_suf
370 let dep_base = remove_suffix '.' dep
371 deps = (dep_base ++ hisuf)
372 : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
373 -- length objs should be == length deps
374 sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
376 mapM genDep [ d | Just d <- deps ]
378 return (Just output_fn)
380 -- add the lines to dep_makefile:
384 -- if the dependency is on something other than a .hi file:
385 -- this.o this.p_o ... : dep
387 -- if the import is {-# SOURCE #-}
388 -- this.o this.p_o ... : dep.hi-boot[-$vers]
391 -- this.o ... : dep.hi
392 -- this.p_o ... : dep.p_hi
395 -- (where .o is $osuf, and the other suffixes come from
396 -- the cmdline -s options).
398 -----------------------------------------------------------------------------
401 -- Compilation of a single module, in "legacy" mode (_not_ under
402 -- the direction of the compilation manager).
403 run_phase Hsc basename suff input_fn output_fn
406 -- we add the current directory (i.e. the directory in which
407 -- the .hs files resides) to the import path, since this is
408 -- what gcc does, and it's probably what you want.
409 let current_dir = getdir basename
411 paths <- readIORef v_Include_paths
412 writeIORef v_Include_paths (current_dir : paths)
414 -- figure out which header files to #include in a generated .hc file
415 c_includes <- getPackageCIncludes
416 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
418 let cc_injects = unlines (map mk_include
419 (c_includes ++ reverse cmdline_includes))
422 '"':_{-"-} -> "#include "++h_file
423 '<':_ -> "#include "++h_file
424 _ -> "#include \""++h_file++"\""
426 writeIORef v_HCHeader cc_injects
428 -- gather the imports and module name
429 (srcimps,imps,mod_name) <- getImportsFromFile input_fn
431 -- build a ModuleLocation to pass to hscMain.
432 Just (mod, location')
433 <- mkHomeModuleLocn mod_name basename (Just (basename ++ '.':suff))
435 -- take -ohi into account if present
436 ohi <- readIORef v_Output_hi
437 let location | Just fn <- ohi = location'{ ml_hi_file = fn }
438 | otherwise = location'
440 -- figure out if the source has changed, for recompilation avoidance.
441 -- only do this if we're eventually going to generate a .o file.
442 -- (ToDo: do when generating .hc files too?)
444 -- Setting source_unchanged to True means that M.o seems
445 -- to be up to date wrt M.hs; so no need to recompile unless imports have
446 -- changed (which the compiler itself figures out).
447 -- Setting source_unchanged to False tells the compiler that M.o is out of
448 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
449 do_recomp <- readIORef v_Recomp
450 todo <- readIORef v_GhcMode
451 expl_o_file <- readIORef v_Output_file
454 Nothing -> unJust "source_unchanged" (ml_obj_file location)
457 if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln ))
459 else do t1 <- getModificationTime (basename ++ '.':suff)
460 o_file_exists <- doesFileExist o_file
462 then return False -- Need to recompile
463 else do t2 <- getModificationTime o_file
469 dyn_flags <- getDynFlags
471 let dyn_flags' = dyn_flags { hscOutName = output_fn,
472 hscStubCOutName = basename ++ "_stub.c",
473 hscStubHOutName = basename ++ "_stub.h",
474 extCoreName = basename ++ ".core" }
477 pcs <- initPersistentCompilerState
478 result <- hscMain OneShot
480 location{ ml_hspp_file=Just input_fn }
484 emptyModuleEnv -- HomeSymbolTable
485 emptyModuleEnv -- HomeIfaceTable
490 HscFail pcs -> throwDyn (PhaseFailed "hsc" (ExitFailure 1));
492 HscNoRecomp pcs details iface -> do { SysTools.touch "Touching object file" o_file
495 HscRecomp pcs details iface stub_h_exists stub_c_exists
496 _maybe_interpreted_code -> do
499 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
502 Just stub_o -> add v_Ld_inputs stub_o
504 return (Just output_fn)
507 -----------------------------------------------------------------------------
510 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
511 -- way too many hacks, and I can't say I've ever used it anyway.
513 run_phase cc_phase basename suff input_fn output_fn
514 | cc_phase == Cc || cc_phase == HCc
515 = do cc_opts <- getOpts opt_c
516 cmdline_include_dirs <- readIORef v_Include_paths
518 let hcc = cc_phase == HCc
520 -- add package include paths even if we're just compiling
521 -- .c files; this is the Value Add(TM) that using
522 -- ghc instead of gcc gives you :)
523 pkg_include_dirs <- getPackageIncludePath
524 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
527 mangle <- readIORef v_Do_asm_mangling
528 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
532 o2 <- readIORef v_minus_o2_for_C
533 let opt_flag | o2 = "-O2"
536 pkg_extra_cc_opts <- getPackageExtraCcOpts
538 split_objs <- readIORef v_Split_object_files
539 let split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
542 excessPrecision <- readIORef v_Excess_precision
543 SysTools.runCc ([ "-x", "c", input_fn, "-o", output_fn ]
545 ++ (if cc_phase == HCc && mangle
548 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
549 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
552 ++ (if excessPrecision then [] else [ "-ffloat-store" ])
556 return (Just output_fn)
558 -- ToDo: postprocess the output from gcc
560 -----------------------------------------------------------------------------
563 run_phase Mangle _basename _suff input_fn output_fn
564 = do mangler_opts <- getOpts opt_m
565 machdep_opts <- if (prefixMatch "i386" cTARGETPLATFORM)
566 then do n_regs <- dynFlag stolen_x86_regs
567 return [ show n_regs ]
570 SysTools.runMangle (mangler_opts
571 ++ [ input_fn, output_fn ]
573 return (Just output_fn)
575 -----------------------------------------------------------------------------
578 run_phase SplitMangle _basename _suff input_fn output_fn
579 = do -- tmp_pfx is the prefix used for the split .s files
580 -- We also use it as the file to contain the no. of split .s files (sigh)
581 split_s_prefix <- SysTools.newTempName "split"
582 let n_files_fn = split_s_prefix
584 SysTools.runSplit [input_fn, split_s_prefix, n_files_fn]
586 -- Save the number of split files for future references
587 s <- readFile n_files_fn
588 let n_files = read s :: Int
589 writeIORef v_Split_info (split_s_prefix, n_files)
591 -- Remember to delete all these files
592 addFilesToClean [ split_s_prefix ++ "__" ++ show n ++ ".s"
595 return (Just output_fn)
597 -----------------------------------------------------------------------------
600 run_phase As _basename _suff input_fn output_fn
601 = do as_opts <- getOpts opt_a
602 cmdline_include_paths <- readIORef v_Include_paths
604 SysTools.runAs (as_opts
605 ++ [ "-I" ++ p | p <- cmdline_include_paths ]
606 ++ [ "-c", input_fn, "-o", output_fn ])
607 return (Just output_fn)
609 run_phase SplitAs basename _suff _input_fn output_fn
610 = do as_opts <- getOpts opt_a
612 (split_s_prefix, n) <- readIORef v_Split_info
614 odir <- readIORef v_Output_dir
615 let real_odir = case odir of
620 = do let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
621 let output_o = newdir real_odir
622 (basename ++ "__" ++ show n ++ ".o")
623 real_o <- osuf_ify output_o
624 SysTools.runAs (as_opts ++ ["-c", "-o", real_o, input_s])
626 mapM_ assemble_file [1..n]
627 return (Just output_fn)
629 -----------------------------------------------------------------------------
630 -- MoveBinary sort-of-phase
631 -- After having produced a binary, move it somewhere else and generate a
632 -- wrapper script calling the binary. Currently, we need this only in
633 -- a parallel way (i.e. in GUM), because PVM expects the binary in a
634 -- central directory.
635 -- This is called from doLink below, after linking. I haven't made it
636 -- a separate phase to minimise interfering with other modules, and
637 -- we don't need the generality of a phase (MoveBinary is always
638 -- done after linking and makes only sense in a parallel setup) -- HWL
640 run_phase_MoveBinary input_fn
643 pvm_root <- getEnv "PVM_ROOT"
644 pvm_arch <- getEnv "PVM_ARCH"
646 pvm_executable_base = "=" ++ input_fn
647 pvm_executable = pvm_root ++ "/bin/" ++ pvm_arch ++ "/" ++ pvm_executable_base
648 -- nuke old binary; maybe use configur'ed names for cp and rm?
649 system ("rm -f " ++ pvm_executable)
650 -- move the newly created binary into PVM land
651 system ("cp -p " ++ input_fn ++ " " ++ pvm_executable)
652 -- generate a wrapper script for running a parallel prg under PVM
653 writeFile input_fn (mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan)
656 -- generates a Perl skript starting a parallel prg under PVM
657 mk_pvm_wrapper_script :: String -> String -> String -> String
658 mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $
660 "eval 'exec perl -S $0 ${1+\"$@\"}'",
661 " if $running_under_some_shell;",
662 "# =!=!=!=!=!=!=!=!=!=!=!",
663 "# This script is automatically generated: DO NOT EDIT!!!",
664 "# Generated by Glasgow Haskell Compiler",
665 "# ngoqvam choHbogh vaj' vIHoHnISbej !!!!",
667 "$pvm_executable = '" ++ pvm_executable ++ "';",
668 "$pvm_executable_base = '" ++ pvm_executable_base ++ "';",
669 "$SysMan = '" ++ sysMan ++ "';",
671 {- ToDo: add the magical shortcuts again iff we actually use them -- HWL
672 "# first, some magical shortcuts to run "commands" on the binary",
673 "# (which is hidden)",
674 "if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {",
675 " local($cmd) = $1;",
676 " system("$cmd $pvm_executable");",
677 " exit(0); # all done",
680 "# Now, run the real binary; process the args first",
681 "$ENV{'PE'} = $pvm_executable_base;", -- ++ pvm_executable_base,
683 "$nprocessors = 0; # the default: as many PEs as machines in PVM config",
684 "@nonPVM_args = ();",
687 "args: while ($a = shift(@ARGV)) {",
688 " if ( $a eq '+RTS' ) {",
689 " $in_RTS_args = 1;",
690 " } elsif ( $a eq '-RTS' ) {",
691 " $in_RTS_args = 0;",
693 " if ( $a eq '-d' && $in_RTS_args ) {",
695 " } elsif ( $a =~ /^-qN(\\d+)/ && $in_RTS_args ) {",
696 " $nprocessors = $1;",
697 " } elsif ( $a =~ /^-qp(\\d+)/ && $in_RTS_args ) {",
698 " $nprocessors = $1;",
700 " push(@nonPVM_args, $a);",
704 "local($return_val) = 0;",
705 "# Start the parallel execution by calling SysMan",
706 "system(\"$SysMan $debug $pvm_executable $nprocessors @nonPVM_args\");",
708 "# ToDo: fix race condition moving files and flushing them!!",
709 "system(\"cp $ENV{'HOME'}/$pvm_executable_base.???.gr .\") if -f \"$ENV{'HOME'}/$pvm_executable_base.002.gr\";",
713 -----------------------------------------------------------------------------
714 -- Complain about non-dynamic flags in OPTIONS pragmas
716 checkProcessArgsResult flags basename suff
717 = do when (not (null flags)) (throwDyn (ProgramError (
718 basename ++ "." ++ suff
719 ++ ": static flags are not allowed in {-# OPTIONS #-} pragmas:\n\t"
720 ++ unwords flags)) (ExitFailure 1))
722 -----------------------------------------------------------------------------
725 doLink :: [String] -> IO ()
728 static <- readIORef v_Static
729 no_hs_main <- readIORef v_NoHsMain
731 o_file <- readIORef v_Output_file
732 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
734 pkg_lib_paths <- getPackageLibraryPath
735 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
737 lib_paths <- readIORef v_Library_paths
738 let lib_path_opts = map ("-L"++) lib_paths
740 pkg_libs <- getPackageLibraries
741 let imp = if static then "" else "_imp"
742 pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
744 libs <- readIORef v_Cmdline_libraries
745 let lib_opts = map ("-l"++) (reverse libs)
746 -- reverse because they're added in reverse order from the cmd line
748 pkg_extra_ld_opts <- getPackageExtraLdOpts
750 -- probably _stub.o files
751 extra_ld_inputs <- readIORef v_Ld_inputs
753 -- opts from -optl-<blah>
754 extra_ld_opts <- getStaticOpts v_Opt_l
756 rts_pkg <- getPackageDetails ["rts"]
757 std_pkg <- getPackageDetails ["std"]
758 let extra_os = if static || no_hs_main
760 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
761 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
763 (md_c_flags, _) <- machdepCCOpts
764 SysTools.runLink ( [verb, "-o", output_fn]
775 ++ if static && not no_hs_main then
776 #ifdef LEADING_UNDERSCORE
777 [ "-u _PrelMain_mainIO_closure" ,
778 "-u ___init_PrelMain"]
780 [ "-u PrelMain_mainIO_closure" ,
781 "-u __init_PrelMain"]
785 -- parallel only: move binary to another dir -- HWL
786 ways_ <- readIORef v_Ways
787 when (WayPar `elem` ways_)
788 (do success <- run_phase_MoveBinary output_fn
789 if success then return ()
790 else throwDyn (InstallationError ("cannot move binary to PVM dir")))
792 -----------------------------------------------------------------------------
793 -- Making a DLL (only for Win32)
795 doMkDLL :: [String] -> IO ()
798 static <- readIORef v_Static
799 no_hs_main <- readIORef v_NoHsMain
801 o_file <- readIORef v_Output_file
802 let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
804 pkg_lib_paths <- getPackageLibraryPath
805 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
807 lib_paths <- readIORef v_Library_paths
808 let lib_path_opts = map ("-L"++) lib_paths
810 pkg_libs <- getPackageLibraries
811 let imp = if static then "" else "_imp"
812 pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
814 libs <- readIORef v_Cmdline_libraries
815 let lib_opts = map ("-l"++) (reverse libs)
816 -- reverse because they're added in reverse order from the cmd line
818 pkg_extra_ld_opts <- getPackageExtraLdOpts
820 -- probably _stub.o files
821 extra_ld_inputs <- readIORef v_Ld_inputs
823 -- opts from -optdll-<blah>
824 extra_ld_opts <- getStaticOpts v_Opt_dll
826 rts_pkg <- getPackageDetails ["rts"]
827 std_pkg <- getPackageDetails ["std"]
829 let extra_os = if static || no_hs_main
831 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
832 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
834 (md_c_flags, _) <- machdepCCOpts
836 ([ verb, "-o", output_fn ]
840 ++ [ "--target=i386-mingw32" ]
847 ++ (case findPS (packString (concat extra_ld_opts)) (packString "--def") of
848 Nothing -> [ "--export-all" ]
853 -----------------------------------------------------------------------------
854 -- Just preprocess a file, put the result in a temp. file (used by the
855 -- compilation manager during the summary phase).
857 preprocess :: FilePath -> IO FilePath
858 preprocess filename =
859 ASSERT(haskellish_src_file filename)
860 do restoreDynFlags -- Restore to state of last save
861 pipeline <- genPipeline (StopBefore Hsc) ("preprocess") False
862 defaultHscLang filename
863 runPipeline pipeline filename False{-no linking-} False{-no -o flag-}
865 -----------------------------------------------------------------------------
866 -- Compile a single module, under the control of the compilation manager.
868 -- This is the interface between the compilation manager and the
869 -- compiler proper (hsc), where we deal with tedious details like
870 -- reading the OPTIONS pragma from the source file, and passing the
871 -- output of hsc through the C compiler.
873 -- The driver sits between 'compile' and 'hscMain', translating calls
874 -- to the former into calls to the latter, and results from the latter
875 -- into results from the former. It does things like preprocessing
876 -- the .hs file if necessary, and compiling up the .stub_c files to
877 -- generate Linkables.
879 -- NB. No old interface can also mean that the source has changed.
881 compile :: GhciMode -- distinguish batch from interactive
882 -> ModSummary -- summary, including source
883 -> Bool -- True <=> source unchanged
884 -> Bool -- True <=> have object
885 -> Maybe ModIface -- old interface, if available
886 -> HomeSymbolTable -- for home module ModDetails
887 -> HomeIfaceTable -- for home module Ifaces
888 -> PersistentCompilerState -- persistent compiler state
892 = CompOK PersistentCompilerState -- updated PCS
893 ModDetails -- new details (HST additions)
894 ModIface -- new iface (HIT additions)
896 -- new code; Nothing => compilation was not reqd
897 -- (old code is still valid)
899 | CompErrs PersistentCompilerState -- updated PCS
902 compile ghci_mode summary source_unchanged have_object
903 old_iface hst hit pcs = do
904 dyn_flags <- restoreDynFlags -- Restore to the state of the last save
908 (showSDoc (text "Compiling" <+> ppr (name_of_summary summary)))
910 let verb = verbosity dyn_flags
911 let location = ms_location summary
912 let input_fn = unJust "compile:hs" (ml_hs_file location)
913 let input_fnpp = unJust "compile:hspp" (ml_hspp_file location)
915 when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp))
917 opts <- getOptionsFromSource input_fnpp
918 processArgs dynamic_flags opts []
919 dyn_flags <- getDynFlags
921 let hsc_lang = hscLang dyn_flags
922 (basename, _) = splitFilename input_fn
924 output_fn <- case hsc_lang of
925 HscAsm -> newTempName (phaseInputExt As)
926 HscC -> newTempName (phaseInputExt HCc)
927 HscJava -> newTempName "java" -- ToDo
928 HscILX -> return (basename ++ ".ilx") -- newTempName "ilx" -- ToDo
929 HscInterpreted -> return (error "no output file")
931 let dyn_flags' = dyn_flags { hscOutName = output_fn,
932 hscStubCOutName = basename ++ "_stub.c",
933 hscStubHOutName = basename ++ "_stub.h",
934 extCoreName = basename ++ ".core" }
936 -- figure out which header files to #include in a generated .hc file
937 c_includes <- getPackageCIncludes
938 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
940 let cc_injects = unlines (map mk_include
941 (c_includes ++ reverse cmdline_includes))
944 '"':_{-"-} -> "#include "++h_file
945 '<':_ -> "#include "++h_file
946 _ -> "#include \""++h_file++"\""
948 writeIORef v_HCHeader cc_injects
951 hsc_result <- hscMain ghci_mode dyn_flags'
952 (ms_mod summary) location
953 source_unchanged have_object old_iface hst hit pcs
956 HscFail pcs -> return (CompErrs pcs)
958 HscNoRecomp pcs details iface -> return (CompOK pcs details iface Nothing)
960 HscRecomp pcs details iface
961 stub_h_exists stub_c_exists maybe_interpreted_code -> do
964 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
965 let stub_unlinked = case maybe_stub_o of
967 Just stub_o -> [ DotO stub_o ]
969 (hs_unlinked, unlinked_time) <-
972 -- in interpreted mode, just return the compiled code
973 -- as our "unlinked" object.
975 case maybe_interpreted_code of
976 Just (bcos,itbl_env) -> do tm <- getClockTime
977 return ([BCOs bcos itbl_env], tm)
978 Nothing -> panic "compile: no interpreted code"
980 -- we're in batch mode: finish the compilation pipeline.
981 _other -> do pipe <- genPipeline (StopBefore Ln) "" True
983 -- runPipeline takes input_fn so it can split off
984 -- the base name and use it as the base of
985 -- the output object file.
986 let (basename, suffix) = splitFilename input_fn
987 o_file <- pipeLoop pipe output_fn False False
989 o_time <- getModificationTime o_file
990 return ([DotO o_file], o_time)
992 let linkable = LM unlinked_time (moduleName (ms_mod summary))
993 (hs_unlinked ++ stub_unlinked)
995 return (CompOK pcs details iface (Just linkable))
998 -----------------------------------------------------------------------------
999 -- stub .h and .c files (for foreign export support)
1001 compileStub dflags stub_c_exists
1002 | not stub_c_exists = return Nothing
1003 | stub_c_exists = do
1004 -- compile the _stub.c file w/ gcc
1005 let stub_c = hscStubCOutName dflags
1006 pipeline <- genPipeline (StopBefore Ln) "" True defaultHscLang stub_c
1007 stub_o <- runPipeline pipeline stub_c False{-no linking-}
1008 False{-no -o option-}
1010 return (Just stub_o)