1 -----------------------------------------------------------------------------
2 -- $Id: DriverPipeline.hs,v 1.66 2001/05/08 10:58:48 simonmar 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
152 writeIORef v_Object_suf (Just "ilx")
154 osuf <- readIORef v_Object_suf
157 ----------- ----- ---- --- -- -- - - -
158 (_basename, suffix) = splitFilename filename
160 start = startPhase suffix
162 -- special case for mkdependHS: .hspp files go through MkDependHS
163 start_phase | todo == DoMkDependHS && start == Hsc = MkDependHS
166 haskellish = haskellish_suffix suffix
167 cish = cish_suffix suffix
169 -- for a .hc file we need to force lang to HscC
170 real_lang | start_phase == HCc || start_phase == Mangle = HscC
174 ----------- ----- ---- --- -- -- - - -
176 | todo == DoMkDependHS = [ Unlit, Cpp, MkDependHS ]
180 HscC | split && mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle,
181 SplitMangle, SplitAs ]
182 | mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle, As ]
184 | otherwise -> [ Unlit, Cpp, Hsc, HCc, As ]
186 HscAsm | split -> [ Unlit, Cpp, Hsc, SplitMangle, SplitAs ]
187 | otherwise -> [ Unlit, Cpp, Hsc, As ]
189 HscJava | split -> not_valid
190 | otherwise -> error "not implemented: compiling via Java"
192 HscILX | split -> not_valid
193 | otherwise -> [ Unlit, Cpp, Hsc ]
198 | otherwise = [ ] -- just pass this file through to the linker
200 -- ToDo: this is somewhat cryptic
202 not_valid = throwDyn (UsageError ("invalid option combination"))
203 ----------- ----- ---- --- -- -- - - -
205 -- this shouldn't happen.
206 if start_phase /= Ln && start_phase `notElem` pipeline
207 then throwDyn (CmdLineError ("can't find starting phase for "
212 ----------- ----- ---- --- -- -- - - -
213 myPhaseInputExt Ln = case osuf of Nothing -> phaseInputExt Ln
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.
242 stop_phase = case todo of
243 StopBefore As | split -> SplitAs
244 StopBefore phase -> phase
248 annotated_pipeline = annotatePipeline (pipeline ++ [Ln]) stop_phase
250 phase_ne p (p1,_,_) = (p1 /= p)
251 ----------- ----- ---- --- -- -- - - -
253 -- if we can't find the phase we're supposed to stop before,
254 -- something has gone wrong. This test carefully avoids the
255 -- case where we aren't supposed to do any compilation, because the file
256 -- is already in linkable form (for example).
257 if start_phase `elem` pipeline &&
258 (stop_phase /= Ln && stop_phase `notElem` pipeline)
259 then throwDyn (UsageError
260 ("flag " ++ stop_flag
261 ++ " is incompatible with source file `" ++ filename ++ "'"))
264 print (show pipeline ++ show annotated_pipeline ++ show stop_phase)
267 takeWhile (phase_ne stop_phase ) $
268 dropWhile (phase_ne start_phase) $
274 :: [ (Phase, IntermediateFileType, String) ] -- phases to run
275 -> String -- input file
276 -> Bool -- doing linking afterward?
277 -> Bool -- take into account -o when generating output?
278 -> IO String -- return final filename
280 runPipeline pipeline input_fn do_linking use_ofile
281 = pipeLoop pipeline input_fn do_linking use_ofile basename suffix
282 where (basename, suffix) = splitFilename input_fn
284 pipeLoop [] input_fn _ _ _ _ = return input_fn
285 pipeLoop ((phase, keep, o_suffix):phases)
286 input_fn do_linking use_ofile orig_basename orig_suffix
289 output_fn <- outputFileName (null phases) keep o_suffix
291 carry_on <- run_phase phase orig_basename orig_suffix input_fn output_fn
292 -- sometimes we bail out early, eg. when the compiler's recompilation
293 -- checker has determined that recompilation isn't necessary.
295 then do let (_,keep,final_suffix) = last phases
296 ofile <- outputFileName True keep final_suffix
298 else do -- carry on ...
300 pipeLoop phases output_fn do_linking use_ofile 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
313 -------------------------------------------------------------------------------
316 run_phase Unlit _basename _suff input_fn output_fn
317 = do unlit <- readIORef v_Pgm_L
318 unlit_flags <- getOpts opt_L
319 runSomething "Literate pre-processor"
320 ("echo '# 1 \"" ++input_fn++"\"' > "++output_fn++" && "
321 ++ unlit ++ ' ':input_fn ++ " - >> " ++ output_fn)
324 -------------------------------------------------------------------------------
327 run_phase Cpp basename suff input_fn output_fn
328 = do src_opts <- getOptionsFromSource input_fn
329 unhandled_flags <- processArgs dynamic_flags src_opts []
330 checkProcessArgsResult unhandled_flags basename suff
332 do_cpp <- dynFlag cppFlag
335 cpp <- readIORef v_Pgm_P
336 hscpp_opts <- getOpts opt_P
337 hs_src_cpp_opts <- readIORef v_Hs_source_cpp_opts
339 cmdline_include_paths <- readIORef v_Include_paths
340 pkg_include_dirs <- getPackageIncludePath
341 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
345 (md_c_flags, _) <- machdepCCOpts
347 runSomething "C pre-processor"
349 (["echo '{-# LINE 1 \"" ++ input_fn ++ "\" #-}'", ">", output_fn, "&&",
355 ++ [ "-x", "c", input_fn, ">>", output_fn ]
358 runSomething "Ineffective C pre-processor"
359 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" #-}' > "
360 ++ output_fn ++ " && cat " ++ input_fn
361 ++ " >> " ++ output_fn)
364 -----------------------------------------------------------------------------
367 run_phase MkDependHS basename suff input_fn _output_fn = do
368 src <- readFile input_fn
369 let (import_sources, import_normals, module_name) = getImports src
371 let orig_fn = basename ++ '.':suff
372 deps_sources <- mapM (findDependency True orig_fn) import_sources
373 deps_normals <- mapM (findDependency False orig_fn) import_normals
374 let deps = deps_sources ++ deps_normals
376 osuf_opt <- readIORef v_Object_suf
377 let osuf = case osuf_opt of
378 Nothing -> phaseInputExt Ln
381 extra_suffixes <- readIORef v_Dep_suffixes
382 let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
383 ofiles = map (\suf -> basename ++ '.':suf) suffixes
385 objs <- mapM odir_ify ofiles
387 hdl <- readIORef v_Dep_tmp_hdl
389 -- std dependency of the object(s) on the source file
390 hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
392 let genDep (dep, False {- not an hi file -}) =
393 hPutStrLn hdl (unwords objs ++ " : " ++ dep)
394 genDep (dep, True {- is an hi file -}) = do
395 hisuf <- readIORef v_Hi_suf
396 let dep_base = remove_suffix '.' dep
397 deps = (dep_base ++ hisuf)
398 : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
399 -- length objs should be == length deps
400 sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
402 mapM genDep [ d | Just d <- deps ]
406 -- add the lines to dep_makefile:
410 -- if the dependency is on something other than a .hi file:
411 -- this.o this.p_o ... : dep
413 -- if the import is {-# SOURCE #-}
414 -- this.o this.p_o ... : dep.hi-boot[-$vers]
417 -- this.o ... : dep.hi
418 -- this.p_o ... : dep.p_hi
421 -- (where .o is $osuf, and the other suffixes come from
422 -- the cmdline -s options).
424 -----------------------------------------------------------------------------
427 -- Compilation of a single module, in "legacy" mode (_not_ under
428 -- the direction of the compilation manager).
429 run_phase Hsc basename suff input_fn output_fn
432 -- we add the current directory (i.e. the directory in which
433 -- the .hs files resides) to the import path, since this is
434 -- what gcc does, and it's probably what you want.
435 let current_dir = getdir basename
437 paths <- readIORef v_Include_paths
438 writeIORef v_Include_paths (current_dir : paths)
440 -- figure out where to put the .hi file
441 ohi <- readIORef v_Output_hi
442 hisuf <- readIORef v_Hi_suf
443 let hifile = case ohi of
444 Nothing -> basename ++ '.':hisuf
447 -- figure out which header files to #include in a generated .hc file
448 c_includes <- getPackageCIncludes
449 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
451 let cc_injects = unlines (map mk_include
452 (c_includes ++ reverse cmdline_includes))
455 '"':_{-"-} -> "#include "++h_file
456 '<':_ -> "#include "++h_file
457 _ -> "#include \""++h_file++"\""
459 writeIORef v_HCHeader cc_injects
461 -- figure out if the source has changed, for recompilation avoidance.
462 -- only do this if we're eventually going to generate a .o file.
463 -- (ToDo: do when generating .hc files too?)
465 -- Setting source_unchanged to True means that M.o seems
466 -- to be up to date wrt M.hs; so no need to recompile unless imports have
467 -- changed (which the compiler itself figures out).
468 -- Setting source_unchanged to False tells the compiler that M.o is out of
469 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
470 do_recomp <- readIORef v_Recomp
471 todo <- readIORef v_GhcMode
472 o_file' <- odir_ify (basename ++ '.':phaseInputExt Ln)
473 o_file <- osuf_ify o_file'
475 if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln ))
477 else do t1 <- getModificationTime (basename ++ '.':suff)
478 o_file_exists <- doesFileExist o_file
480 then return False -- Need to recompile
481 else do t2 <- getModificationTime o_file
486 -- build a ModuleLocation to pass to hscMain.
487 (srcimps,imps,mod_name) <- getImportsFromFile input_fn
490 <- mkHomeModuleLocn mod_name basename (basename ++ '.':suff)
493 dyn_flags <- readIORef v_DynFlags
495 let dyn_flags' = dyn_flags { hscOutName = output_fn,
496 hscStubCOutName = basename ++ "_stub.c",
497 hscStubHOutName = basename ++ "_stub.h" }
500 pcs <- initPersistentCompilerState
501 result <- hscMain OneShot
503 location{ ml_hspp_file=Just input_fn }
507 emptyModuleEnv -- HomeSymbolTable
508 emptyModuleEnv -- HomeIfaceTable
513 HscFail pcs -> throwDyn (PhaseFailed "hsc" (ExitFailure 1));
515 HscNoRecomp pcs details iface ->
517 runSomething "Touching object file" ("touch " ++ o_file);
521 HscRecomp pcs details iface stub_h_exists stub_c_exists
522 _maybe_interpreted_code -> do
525 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
528 Just stub_o -> add v_Ld_inputs stub_o
533 -----------------------------------------------------------------------------
536 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
537 -- way too many hacks, and I can't say I've ever used it anyway.
539 run_phase cc_phase basename suff input_fn output_fn
540 | cc_phase == Cc || cc_phase == HCc
541 = do cc <- readIORef v_Pgm_c
542 cc_opts <- (getOpts opt_c)
543 cmdline_include_dirs <- readIORef v_Include_paths
545 let hcc = cc_phase == HCc
547 -- add package include paths even if we're just compiling
548 -- .c files; this is the Value Add(TM) that using
549 -- ghc instead of gcc gives you :)
550 pkg_include_dirs <- getPackageIncludePath
551 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
554 mangle <- readIORef v_Do_asm_mangling
555 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
559 o2 <- readIORef v_minus_o2_for_C
560 let opt_flag | o2 = "-O2"
563 pkg_extra_cc_opts <- getPackageExtraCcOpts
565 split_objs <- readIORef v_Split_object_files
566 let split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
569 excessPrecision <- readIORef v_Excess_precision
571 runSomething "C Compiler"
572 (unwords ([ cc, "-x", "c", input_fn, "-o", output_fn ]
574 ++ (if cc_phase == HCc && mangle
577 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
578 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
581 ++ (if excessPrecision then [] else [ "-ffloat-store" ])
587 -- ToDo: postprocess the output from gcc
589 -----------------------------------------------------------------------------
592 run_phase Mangle _basename _suff input_fn output_fn
593 = do mangler <- readIORef v_Pgm_m
594 mangler_opts <- getOpts opt_m
596 if (prefixMatch "i386" cTARGETPLATFORM)
597 then do n_regs <- dynFlag stolen_x86_regs
598 return [ show n_regs ]
600 runSomething "Assembly Mangler"
603 ++ [ input_fn, output_fn ]
608 -----------------------------------------------------------------------------
611 run_phase SplitMangle _basename _suff input_fn _output_fn
612 = do splitter <- readIORef v_Pgm_s
614 -- this is the prefix used for the split .s files
615 tmp_pfx <- readIORef v_TmpDir
617 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
618 writeIORef v_Split_prefix split_s_prefix
619 addFilesToClean [split_s_prefix ++ "__*"] -- d:-)
621 -- allocate a tmp file to put the no. of split .s files in (sigh)
622 n_files <- newTempName "n_files"
624 runSomething "Split Assembly File"
631 -- save the number of split files for future references
632 s <- readFile n_files
633 let n = read s :: Int
634 writeIORef v_N_split_files n
637 -----------------------------------------------------------------------------
640 run_phase As _basename _suff input_fn output_fn
641 = do as <- readIORef v_Pgm_a
642 as_opts <- getOpts opt_a
644 cmdline_include_paths <- readIORef v_Include_paths
645 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
646 runSomething "Assembler"
647 (unwords (as : as_opts
648 ++ cmdline_include_flags
649 ++ [ "-c", input_fn, "-o", output_fn ]
653 run_phase SplitAs basename _suff _input_fn _output_fn
654 = do as <- readIORef v_Pgm_a
655 as_opts <- getOpts opt_a
657 split_s_prefix <- readIORef v_Split_prefix
658 n <- readIORef v_N_split_files
660 odir <- readIORef v_Output_dir
661 let real_odir = case odir of
665 let assemble_file n = do
666 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
667 let output_o = newdir real_odir
668 (basename ++ "__" ++ show n ++ ".o")
669 real_o <- osuf_ify output_o
670 runSomething "Assembler"
671 (unwords (as : as_opts
672 ++ [ "-c", "-o", real_o, input_s ]
675 mapM_ assemble_file [1..n]
678 -----------------------------------------------------------------------------
679 -- MoveBinary sort-of-phase
680 -- After having produced a binary, move it somewhere else and generate a
681 -- wrapper script calling the binary. Currently, we need this only in
682 -- a parallel way (i.e. in GUM), because PVM expects the binary in a
683 -- central directory.
684 -- This is called from doLink below, after linking. I haven't made it
685 -- a separate phase to minimise interfering with other modules, and
686 -- we don't need the generality of a phase (MoveBinary is always
687 -- done after linking and makes only sense in a parallel setup) -- HWL
689 run_phase_MoveBinary input_fn
691 top_dir <- readIORef v_TopDir
692 pvm_root <- getEnv "PVM_ROOT"
693 pvm_arch <- getEnv "PVM_ARCH"
695 pvm_executable_base = "=" ++ input_fn
696 pvm_executable = pvm_root ++ "/bin/" ++ pvm_arch ++ "/" ++ pvm_executable_base
697 sysMan = top_dir ++ "/ghc/rts/parallel/SysMan";
698 -- nuke old binary; maybe use configur'ed names for cp and rm?
699 system ("rm -f " ++ pvm_executable)
700 -- move the newly created binary into PVM land
701 system ("cp -p " ++ input_fn ++ " " ++ pvm_executable)
702 -- generate a wrapper script for running a parallel prg under PVM
703 writeFile input_fn (mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan)
706 -- generates a Perl skript starting a parallel prg under PVM
707 mk_pvm_wrapper_script :: String -> String -> String -> String
708 mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $
710 "eval 'exec perl -S $0 ${1+\"$@\"}'",
711 " if $running_under_some_shell;",
712 "# =!=!=!=!=!=!=!=!=!=!=!",
713 "# This script is automatically generated: DO NOT EDIT!!!",
714 "# Generated by Glasgow Haskell Compiler",
715 "# ngoqvam choHbogh vaj' vIHoHnISbej !!!!",
717 "$pvm_executable = '" ++ pvm_executable ++ "';",
718 "$pvm_executable_base = '" ++ pvm_executable_base ++ "';",
719 "$SysMan = '" ++ sysMan ++ "';",
721 {- ToDo: add the magical shortcuts again iff we actually use them -- HWL
722 "# first, some magical shortcuts to run "commands" on the binary",
723 "# (which is hidden)",
724 "if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {",
725 " local($cmd) = $1;",
726 " system("$cmd $pvm_executable");",
727 " exit(0); # all done",
730 "# Now, run the real binary; process the args first",
731 "$ENV{'PE'} = $pvm_executable_base;", -- ++ pvm_executable_base,
733 "$nprocessors = 0; # the default: as many PEs as machines in PVM config",
734 "@nonPVM_args = ();",
737 "args: while ($a = shift(@ARGV)) {",
738 " if ( $a eq '+RTS' ) {",
739 " $in_RTS_args = 1;",
740 " } elsif ( $a eq '-RTS' ) {",
741 " $in_RTS_args = 0;",
743 " if ( $a eq '-d' && $in_RTS_args ) {",
745 " } elsif ( $a =~ /^-qN(\\d+)/ && $in_RTS_args ) {",
746 " $nprocessors = $1;",
747 " } elsif ( $a =~ /^-qp(\\d+)/ && $in_RTS_args ) {",
748 " $nprocessors = $1;",
750 " push(@nonPVM_args, $a);",
754 "local($return_val) = 0;",
755 "# Start the parallel execution by calling SysMan",
756 "system(\"$SysMan $debug $pvm_executable $nprocessors @nonPVM_args\");",
758 "# ToDo: fix race condition moving files and flushing them!!",
759 "system(\"cp $ENV{'HOME'}/$pvm_executable_base.???.gr .\") if -f \"$ENV{'HOME'}/$pvm_executable_base.002.gr\";",
763 -----------------------------------------------------------------------------
764 -- Complain about non-dynamic flags in OPTIONS pragmas
766 checkProcessArgsResult flags basename suff
767 = do when (not (null flags)) (throwDyn (ProgramError (
768 basename ++ "." ++ suff
769 ++ ": static flags are not allowed in {-# OPTIONS #-} pragmas:\n\t"
770 ++ unwords flags)) (ExitFailure 1))
772 -----------------------------------------------------------------------------
775 doLink :: [String] -> IO ()
777 ln <- readIORef v_Pgm_l
779 static <- readIORef v_Static
780 let imp = if static then "" else "_imp"
781 no_hs_main <- readIORef v_NoHsMain
783 o_file <- readIORef v_Output_file
784 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
786 pkg_lib_paths <- getPackageLibraryPath
787 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
789 lib_paths <- readIORef v_Library_paths
790 let lib_path_opts = map ("-L"++) lib_paths
792 pkg_libs <- getPackageLibraries
793 let pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
795 libs <- readIORef v_Cmdline_libraries
796 let lib_opts = map ("-l"++) (reverse libs)
797 -- reverse because they're added in reverse order from the cmd line
799 pkg_extra_ld_opts <- getPackageExtraLdOpts
801 -- probably _stub.o files
802 extra_ld_inputs <- readIORef v_Ld_inputs
804 -- opts from -optl-<blah>
805 extra_ld_opts <- getStaticOpts v_Opt_l
807 rts_pkg <- getPackageDetails ["rts"]
808 std_pkg <- getPackageDetails ["std"]
809 #ifdef mingw32_TARGET_OS
810 let extra_os = if static || no_hs_main
812 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
813 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
815 (md_c_flags, _) <- machdepCCOpts
816 runSomething "Linker"
818 ([ ln, verb, "-o", output_fn ]
821 #ifdef mingw32_TARGET_OS
831 #ifdef mingw32_TARGET_OS
832 ++ if static then [ "-u _PrelMain_mainIO_closure" , "-u ___init_PrelMain"] else []
834 ++ [ "-u PrelMain_mainIO_closure" , "-u __init_PrelMain"]
838 -- parallel only: move binary to another dir -- HWL
839 ways_ <- readIORef v_Ways
840 when (WayPar `elem` ways_) (do
841 success <- run_phase_MoveBinary output_fn
842 if success then return ()
843 else throwDyn (InstallationError ("cannot move binary to PVM dir")))
845 -----------------------------------------------------------------------------
848 -- only for Win32, but bits that are #ifdefed in doLn are still #ifdefed here
849 -- in a vain attempt to aid future portability
850 doMkDLL :: [String] -> IO ()
852 ln <- readIORef v_Pgm_dll
854 static <- readIORef v_Static
855 let imp = if static then "" else "_imp"
856 no_hs_main <- readIORef v_NoHsMain
858 o_file <- readIORef v_Output_file
859 let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
861 pkg_lib_paths <- getPackageLibraryPath
862 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
864 lib_paths <- readIORef v_Library_paths
865 let lib_path_opts = map ("-L"++) lib_paths
867 pkg_libs <- getPackageLibraries
868 let pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
870 libs <- readIORef v_Cmdline_libraries
871 let lib_opts = map ("-l"++) (reverse libs)
872 -- reverse because they're added in reverse order from the cmd line
874 pkg_extra_ld_opts <- getPackageExtraLdOpts
876 -- probably _stub.o files
877 extra_ld_inputs <- readIORef v_Ld_inputs
879 -- opts from -optdll-<blah>
880 extra_ld_opts <- getStaticOpts v_Opt_dll
882 rts_pkg <- getPackageDetails ["rts"]
883 std_pkg <- getPackageDetails ["std"]
884 #ifdef mingw32_TARGET_OS
885 let extra_os = if static || no_hs_main
887 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
888 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
890 (md_c_flags, _) <- machdepCCOpts
891 runSomething "DLL creator"
893 ([ ln, verb, "-o", output_fn ]
896 #ifdef mingw32_TARGET_OS
898 ++ [ "--target=i386-mingw32" ]
906 ++ (case findPS (packString (concat extra_ld_opts)) (packString "--def") of
907 Nothing -> [ "--export-all" ]
913 -----------------------------------------------------------------------------
914 -- Just preprocess a file, put the result in a temp. file (used by the
915 -- compilation manager during the summary phase).
917 preprocess :: FilePath -> IO FilePath
918 preprocess filename =
919 ASSERT(haskellish_src_file filename)
920 do init_dyn_flags <- readIORef v_InitDynFlags
921 writeIORef v_DynFlags init_dyn_flags
922 pipeline <- genPipeline (StopBefore Hsc) ("preprocess") False
923 defaultHscLang filename
924 runPipeline pipeline filename False{-no linking-} False{-no -o flag-}
926 -----------------------------------------------------------------------------
927 -- Compile a single module, under the control of the compilation manager.
929 -- This is the interface between the compilation manager and the
930 -- compiler proper (hsc), where we deal with tedious details like
931 -- reading the OPTIONS pragma from the source file, and passing the
932 -- output of hsc through the C compiler.
934 -- The driver sits between 'compile' and 'hscMain', translating calls
935 -- to the former into calls to the latter, and results from the latter
936 -- into results from the former. It does things like preprocessing
937 -- the .hs file if necessary, and compiling up the .stub_c files to
938 -- generate Linkables.
940 -- NB. No old interface can also mean that the source has changed.
942 compile :: GhciMode -- distinguish batch from interactive
943 -> ModSummary -- summary, including source
944 -> Bool -- True <=> source unchanged
945 -> Bool -- True <=> have object
946 -> Maybe ModIface -- old interface, if available
947 -> HomeSymbolTable -- for home module ModDetails
948 -> HomeIfaceTable -- for home module Ifaces
949 -> PersistentCompilerState -- persistent compiler state
953 = CompOK PersistentCompilerState -- updated PCS
954 ModDetails -- new details (HST additions)
955 ModIface -- new iface (HIT additions)
957 -- new code; Nothing => compilation was not reqd
958 -- (old code is still valid)
960 | CompErrs PersistentCompilerState -- updated PCS
963 compile ghci_mode summary source_unchanged have_object
964 old_iface hst hit pcs = do
965 init_dyn_flags <- readIORef v_InitDynFlags
966 writeIORef v_DynFlags init_dyn_flags
968 showPass init_dyn_flags
969 (showSDoc (text "Compiling" <+> ppr (name_of_summary summary)))
971 let verb = verbosity init_dyn_flags
972 let location = ms_location summary
973 let input_fn = unJust "compile:hs" (ml_hs_file location)
974 let input_fnpp = unJust "compile:hspp" (ml_hspp_file location)
976 when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp))
978 opts <- getOptionsFromSource input_fnpp
979 processArgs dynamic_flags opts []
980 dyn_flags <- readIORef v_DynFlags
982 let hsc_lang = hscLang dyn_flags
983 output_fn <- case hsc_lang of
984 HscAsm -> newTempName (phaseInputExt As)
985 HscC -> newTempName (phaseInputExt HCc)
986 HscJava -> newTempName "java" -- ToDo
988 HscILX -> newTempName "ilx" -- ToDo
990 HscInterpreted -> return (error "no output file")
992 let (basename, _) = splitFilename input_fn
993 dyn_flags' = dyn_flags { hscOutName = output_fn,
994 hscStubCOutName = basename ++ "_stub.c",
995 hscStubHOutName = basename ++ "_stub.h" }
997 -- figure out which header files to #include in a generated .hc file
998 c_includes <- getPackageCIncludes
999 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
1001 let cc_injects = unlines (map mk_include
1002 (c_includes ++ reverse cmdline_includes))
1005 '"':_{-"-} -> "#include "++h_file
1006 '<':_ -> "#include "++h_file
1007 _ -> "#include \""++h_file++"\""
1009 writeIORef v_HCHeader cc_injects
1012 hsc_result <- hscMain ghci_mode dyn_flags'
1013 (ms_mod summary) location
1014 source_unchanged have_object old_iface hst hit pcs
1017 HscFail pcs -> return (CompErrs pcs)
1019 HscNoRecomp pcs details iface -> return (CompOK pcs details iface Nothing)
1021 HscRecomp pcs details iface
1022 stub_h_exists stub_c_exists maybe_interpreted_code -> do
1025 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
1026 let stub_unlinked = case maybe_stub_o of
1028 Just stub_o -> [ DotO stub_o ]
1030 (hs_unlinked, unlinked_time) <-
1033 -- in interpreted mode, just return the compiled code
1034 -- as our "unlinked" object.
1036 case maybe_interpreted_code of
1037 Just (bcos,itbl_env) -> do tm <- getClockTime
1038 return ([BCOs bcos itbl_env], tm)
1039 Nothing -> panic "compile: no interpreted code"
1041 -- we're in batch mode: finish the compilation pipeline.
1042 _other -> do pipe <- genPipeline (StopBefore Ln) "" True
1044 -- runPipeline takes input_fn so it can split off
1045 -- the base name and use it as the base of
1046 -- the output object file.
1047 let (basename, suffix) = splitFilename input_fn
1048 o_file <- pipeLoop pipe output_fn False False
1050 o_time <- getModificationTime o_file
1051 return ([DotO o_file], o_time)
1053 let linkable = LM unlinked_time (moduleName (ms_mod summary))
1054 (hs_unlinked ++ stub_unlinked)
1056 return (CompOK pcs details iface (Just linkable))
1059 -----------------------------------------------------------------------------
1060 -- stub .h and .c files (for foreign export support)
1062 compileStub dflags stub_c_exists
1063 | not stub_c_exists = return Nothing
1064 | stub_c_exists = do
1065 -- compile the _stub.c file w/ gcc
1066 let stub_c = hscStubCOutName dflags
1067 pipeline <- genPipeline (StopBefore Ln) "" True defaultHscLang stub_c
1068 stub_o <- runPipeline pipeline stub_c False{-no linking-}
1069 False{-no -o option-}
1071 return (Just stub_o)