1 -----------------------------------------------------------------------------
2 -- $Id: DriverPipeline.hs,v 1.59 2001/03/26 12:28:15 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
151 osuf <- readIORef v_Object_suf
154 ----------- ----- ---- --- -- -- - - -
155 (_basename, suffix) = splitFilename filename
157 start = startPhase suffix
159 -- special case for mkdependHS: .hspp files go through MkDependHS
160 start_phase | todo == DoMkDependHS && start == Hsc = MkDependHS
163 haskellish = haskellish_suffix suffix
164 cish = cish_suffix suffix
166 -- for a .hc file we need to force lang to HscC
167 real_lang | start_phase == HCc = HscC
171 ----------- ----- ---- --- -- -- - - -
173 | todo == DoMkDependHS = [ Unlit, Cpp, MkDependHS ]
177 HscC | split && mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle,
178 SplitMangle, SplitAs ]
179 | mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle, As ]
181 | otherwise -> [ Unlit, Cpp, Hsc, HCc, As ]
183 HscAsm | split -> [ Unlit, Cpp, Hsc, SplitMangle, SplitAs ]
184 | otherwise -> [ Unlit, Cpp, Hsc, As ]
186 HscJava | split -> not_valid
187 | otherwise -> error "not implemented: compiling via Java"
189 HscILX | split -> not_valid
190 | otherwise -> [ Unlit, Cpp, Hsc ]
195 | otherwise = [ ] -- just pass this file through to the linker
197 -- ToDo: this is somewhat cryptic
199 not_valid = throwDyn (OtherError ("invalid option combination"))
200 ----------- ----- ---- --- -- -- - - -
202 -- this shouldn't happen.
203 if start_phase /= Ln && start_phase `notElem` pipeline
204 then throwDyn (OtherError ("can't find starting phase for "
209 ----------- ----- ---- --- -- -- - - -
210 myPhaseInputExt Ln = case osuf of Nothing -> phaseInputExt Ln
212 myPhaseInputExt other = phaseInputExt other
215 :: [Phase] -- raw pipeline
216 -> Phase -- phase to stop before
217 -> [(Phase, IntermediateFileType, String{-file extension-})]
218 annotatePipeline [] _ = []
219 annotatePipeline (Ln:_) _ = []
220 annotatePipeline (phase:next_phase:ps) stop =
221 (phase, keep_this_output, myPhaseInputExt next_phase)
222 : annotatePipeline (next_phase:ps) stop
226 = if persistent_output then Persistent else Temporary
230 Mangle | keep_raw_s -> Persistent
231 As | keep_s -> Persistent
232 HCc | keep_hc -> Persistent
235 -- add information about output files to the pipeline
236 -- the suffix on an output file is determined by the next phase
237 -- in the pipeline, so we add linking to the end of the pipeline
238 -- to force the output from the final phase to be a .o file.
239 stop_phase = case todo of
240 StopBefore As | split -> SplitAs
241 StopBefore phase -> phase
245 annotated_pipeline = annotatePipeline (pipeline ++ [Ln]) stop_phase
247 phase_ne p (p1,_,_) = (p1 /= p)
248 ----------- ----- ---- --- -- -- - - -
250 -- if we can't find the phase we're supposed to stop before,
251 -- something has gone wrong. This test carefully avoids the
252 -- case where we aren't supposed to do any compilation, because the file
253 -- is already in linkable form (for example).
254 if start_phase `elem` pipeline &&
255 (stop_phase /= Ln && stop_phase `notElem` pipeline)
256 then throwDyn (OtherError
257 ("flag " ++ stop_flag
258 ++ " is incompatible with source file `" ++ filename ++ "'"))
262 takeWhile (phase_ne stop_phase ) $
263 dropWhile (phase_ne start_phase) $
269 :: [ (Phase, IntermediateFileType, String) ] -- phases to run
270 -> String -- input file
271 -> Bool -- doing linking afterward?
272 -> Bool -- take into account -o when generating output?
273 -> IO String -- return final filename
275 runPipeline pipeline input_fn do_linking use_ofile
276 = pipeLoop pipeline input_fn do_linking use_ofile basename suffix
277 where (basename, suffix) = splitFilename input_fn
279 pipeLoop [] input_fn _ _ _ _ = return input_fn
280 pipeLoop ((phase, keep, o_suffix):phases)
281 input_fn do_linking use_ofile orig_basename orig_suffix
284 output_fn <- outputFileName (null phases) keep o_suffix
286 carry_on <- run_phase phase orig_basename orig_suffix input_fn output_fn
287 -- sometimes we bail out early, eg. when the compiler's recompilation
288 -- checker has determined that recompilation isn't necessary.
290 then do let (_,keep,final_suffix) = last phases
291 ofile <- outputFileName True keep final_suffix
293 else do -- carry on ...
295 pipeLoop phases output_fn do_linking use_ofile orig_basename orig_suffix
298 outputFileName last_phase keep suffix
299 = do o_file <- readIORef v_Output_file
300 if last_phase && not do_linking && use_ofile && isJust o_file
303 Nothing -> error "outputFileName"
304 else if keep == Persistent
305 then odir_ify (orig_basename ++ '.':suffix)
306 else newTempName suffix
308 -------------------------------------------------------------------------------
311 run_phase Unlit _basename _suff input_fn output_fn
312 = do unlit <- readIORef v_Pgm_L
313 unlit_flags <- getOpts opt_L
314 runSomething "Literate pre-processor"
315 ("echo '# 1 \"" ++input_fn++"\"' > "++output_fn++" && "
316 ++ unlit ++ ' ':input_fn ++ " - >> " ++ output_fn)
319 -------------------------------------------------------------------------------
322 run_phase Cpp basename suff input_fn output_fn
323 = do src_opts <- getOptionsFromSource input_fn
324 unhandled_flags <- processArgs dynamic_flags src_opts []
325 checkProcessArgsResult unhandled_flags basename suff
327 do_cpp <- dynFlag cppFlag
330 cpp <- readIORef v_Pgm_P
331 hscpp_opts <- getOpts opt_P
332 hs_src_cpp_opts <- readIORef v_Hs_source_cpp_opts
334 cmdline_include_paths <- readIORef v_Include_paths
335 pkg_include_dirs <- getPackageIncludePath
336 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
340 (md_c_flags, _) <- machdepCCOpts
342 runSomething "C pre-processor"
344 (["echo '{-# LINE 1 \"" ++ input_fn ++ "\" #-}'", ">", output_fn, "&&",
350 ++ [ "-x", "c", input_fn, ">>", output_fn ]
353 runSomething "Ineffective C pre-processor"
354 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" #-}' > "
355 ++ output_fn ++ " && cat " ++ input_fn
356 ++ " >> " ++ output_fn)
359 -----------------------------------------------------------------------------
362 run_phase MkDependHS basename suff input_fn _output_fn = do
363 src <- readFile input_fn
364 let (import_sources, import_normals, module_name) = getImports src
366 deps_sources <- mapM (findDependency True basename) import_sources
367 deps_normals <- mapM (findDependency False basename) import_normals
368 let deps = deps_sources ++ deps_normals
370 osuf_opt <- readIORef v_Object_suf
371 let osuf = case osuf_opt of
372 Nothing -> phaseInputExt Ln
375 extra_suffixes <- readIORef v_Dep_suffixes
376 let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
377 ofiles = map (\suf -> basename ++ '.':suf) suffixes
379 objs <- mapM odir_ify ofiles
381 hdl <- readIORef v_Dep_tmp_hdl
383 -- std dependency of the object(s) on the source file
384 hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
386 let genDep (dep, False {- not an hi file -}) =
387 hPutStrLn hdl (unwords objs ++ " : " ++ dep)
388 genDep (dep, True {- is an hi file -}) = do
389 hisuf <- readIORef v_Hi_suf
390 let dep_base = remove_suffix '.' dep
391 deps = (dep_base ++ hisuf)
392 : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
393 -- length objs should be == length deps
394 sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
396 mapM genDep [ d | Just d <- deps ]
400 -- add the lines to dep_makefile:
404 -- if the dependency is on something other than a .hi file:
405 -- this.o this.p_o ... : dep
407 -- if the import is {-# SOURCE #-}
408 -- this.o this.p_o ... : dep.hi-boot[-$vers]
411 -- this.o ... : dep.hi
412 -- this.p_o ... : dep.p_hi
415 -- (where .o is $osuf, and the other suffixes come from
416 -- the cmdline -s options).
418 -----------------------------------------------------------------------------
421 -- Compilation of a single module, in "legacy" mode (_not_ under
422 -- the direction of the compilation manager).
423 run_phase Hsc basename suff input_fn output_fn
426 -- we add the current directory (i.e. the directory in which
427 -- the .hs files resides) to the import path, since this is
428 -- what gcc does, and it's probably what you want.
429 let current_dir = getdir basename
431 paths <- readIORef v_Include_paths
432 writeIORef v_Include_paths (current_dir : paths)
434 -- figure out where to put the .hi file
435 ohi <- readIORef v_Output_hi
436 hisuf <- readIORef v_Hi_suf
437 let hifile = case ohi of
438 Nothing -> basename ++ '.':hisuf
441 -- figure out which header files to #include in a generated .hc file
442 c_includes <- getPackageCIncludes
443 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
445 let cc_injects = unlines (map mk_include
446 (c_includes ++ reverse cmdline_includes))
449 '"':_{-"-} -> "#include "++h_file
450 '<':_ -> "#include "++h_file
451 _ -> "#include \""++h_file++"\""
453 writeIORef v_HCHeader cc_injects
455 -- figure out if the source has changed, for recompilation avoidance.
456 -- only do this if we're eventually going to generate a .o file.
457 -- (ToDo: do when generating .hc files too?)
459 -- Setting source_unchanged to True means that M.o seems
460 -- to be up to date wrt M.hs; so no need to recompile unless imports have
461 -- changed (which the compiler itself figures out).
462 -- Setting source_unchanged to False tells the compiler that M.o is out of
463 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
464 do_recomp <- readIORef v_Recomp
465 todo <- readIORef v_GhcMode
466 o_file' <- odir_ify (basename ++ '.':phaseInputExt Ln)
467 o_file <- osuf_ify o_file'
469 if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln ))
471 else do t1 <- getModificationTime (basename ++ '.':suff)
472 o_file_exists <- doesFileExist o_file
474 then return False -- Need to recompile
475 else do t2 <- getModificationTime o_file
480 -- build a ModuleLocation to pass to hscMain.
481 modsrc <- readFile input_fn
482 let (srcimps,imps,mod_name) = getImports modsrc
485 <- mkHomeModuleLocn mod_name basename (basename ++ '.':suff)
488 dyn_flags <- readIORef v_DynFlags
490 let dyn_flags' = dyn_flags { hscOutName = output_fn,
491 hscStubCOutName = basename ++ "_stub.c",
492 hscStubHOutName = basename ++ "_stub.h" }
495 pcs <- initPersistentCompilerState
496 result <- hscMain OneShot
498 location{ ml_hspp_file=Just input_fn }
502 emptyModuleEnv -- HomeSymbolTable
503 emptyModuleEnv -- HomeIfaceTable
508 HscFail pcs -> throwDyn (PhaseFailed "hsc" (ExitFailure 1));
510 HscNoRecomp pcs details iface ->
512 runSomething "Touching object file" ("touch " ++ o_file);
516 HscRecomp pcs details iface stub_h_exists stub_c_exists
517 _maybe_interpreted_code -> do
520 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
523 Just stub_o -> add v_Ld_inputs stub_o
528 -----------------------------------------------------------------------------
531 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
532 -- way too many hacks, and I can't say I've ever used it anyway.
534 run_phase cc_phase basename suff input_fn output_fn
535 | cc_phase == Cc || cc_phase == HCc
536 = do cc <- readIORef v_Pgm_c
537 cc_opts <- (getOpts opt_c)
538 cmdline_include_dirs <- readIORef v_Include_paths
540 let hcc = cc_phase == HCc
542 -- add package include paths even if we're just compiling
543 -- .c files; this is the Value Add(TM) that using
544 -- ghc instead of gcc gives you :)
545 pkg_include_dirs <- getPackageIncludePath
546 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
549 mangle <- readIORef v_Do_asm_mangling
550 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
554 o2 <- readIORef v_minus_o2_for_C
555 let opt_flag | o2 = "-O2"
558 pkg_extra_cc_opts <- getPackageExtraCcOpts
560 split_objs <- readIORef v_Split_object_files
561 let split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
564 excessPrecision <- readIORef v_Excess_precision
566 runSomething "C Compiler"
567 (unwords ([ cc, "-x", "c", input_fn, "-o", output_fn ]
569 ++ (if cc_phase == HCc && mangle
572 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
573 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
576 ++ (if excessPrecision then [] else [ "-ffloat-store" ])
582 -- ToDo: postprocess the output from gcc
584 -----------------------------------------------------------------------------
587 run_phase Mangle _basename _suff input_fn output_fn
588 = do mangler <- readIORef v_Pgm_m
589 mangler_opts <- getOpts opt_m
591 if (prefixMatch "i386" cTARGETPLATFORM)
592 then do n_regs <- dynFlag stolen_x86_regs
593 return [ show n_regs ]
595 runSomething "Assembly Mangler"
598 ++ [ input_fn, output_fn ]
603 -----------------------------------------------------------------------------
606 run_phase SplitMangle _basename _suff input_fn _output_fn
607 = do splitter <- readIORef v_Pgm_s
609 -- this is the prefix used for the split .s files
610 tmp_pfx <- readIORef v_TmpDir
612 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
613 writeIORef v_Split_prefix split_s_prefix
614 addFilesToClean [split_s_prefix ++ "__*"] -- d:-)
616 -- allocate a tmp file to put the no. of split .s files in (sigh)
617 n_files <- newTempName "n_files"
619 runSomething "Split Assembly File"
626 -- save the number of split files for future references
627 s <- readFile n_files
628 let n = read s :: Int
629 writeIORef v_N_split_files n
632 -----------------------------------------------------------------------------
635 run_phase As _basename _suff input_fn output_fn
636 = do as <- readIORef v_Pgm_a
637 as_opts <- getOpts opt_a
639 cmdline_include_paths <- readIORef v_Include_paths
640 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
641 runSomething "Assembler"
642 (unwords (as : as_opts
643 ++ cmdline_include_flags
644 ++ [ "-c", input_fn, "-o", output_fn ]
648 run_phase SplitAs basename _suff _input_fn _output_fn
649 = do as <- readIORef v_Pgm_a
650 as_opts <- getOpts opt_a
652 split_s_prefix <- readIORef v_Split_prefix
653 n <- readIORef v_N_split_files
655 odir <- readIORef v_Output_dir
656 let real_odir = case odir of
660 let assemble_file n = do
661 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
662 let output_o = newdir real_odir
663 (basename ++ "__" ++ show n ++ ".o")
664 real_o <- osuf_ify output_o
665 runSomething "Assembler"
666 (unwords (as : as_opts
667 ++ [ "-c", "-o", real_o, input_s ]
670 mapM_ assemble_file [1..n]
673 -----------------------------------------------------------------------------
674 -- MoveBinary sort-of-phase
675 -- After having produced a binary, move it somewhere else and generate a
676 -- wrapper script calling the binary. Currently, we need this only in
677 -- a parallel way (i.e. in GUM), because PVM expects the binary in a
678 -- central directory.
679 -- This is called from doLink below, after linking. I haven't made it
680 -- a separate phase to minimise interfering with other modules, and
681 -- we don't need the generality of a phase (MoveBinary is always
682 -- done after linking and makes only sense in a parallel setup) -- HWL
684 run_phase_MoveBinary input_fn
686 top_dir <- readIORef v_TopDir
687 pvm_root <- getEnv "PVM_ROOT"
688 pvm_arch <- getEnv "PVM_ARCH"
690 pvm_executable_base = "=" ++ input_fn
691 pvm_executable = pvm_root ++ "/bin/" ++ pvm_arch ++ "/" ++ pvm_executable_base
692 sysMan = top_dir ++ "/ghc/rts/parallel/SysMan";
693 -- nuke old binary; maybe use configur'ed names for cp and rm?
694 system ("rm -f " ++ pvm_executable)
695 -- move the newly created binary into PVM land
696 system ("cp -p " ++ input_fn ++ " " ++ pvm_executable)
697 -- generate a wrapper script for running a parallel prg under PVM
698 writeFile input_fn (mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan)
701 -- generates a Perl skript starting a parallel prg under PVM
702 mk_pvm_wrapper_script :: String -> String -> String -> String
703 mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $
705 "eval 'exec perl -S $0 ${1+\"$@\"}'",
706 " if $running_under_some_shell;",
707 "# =!=!=!=!=!=!=!=!=!=!=!",
708 "# This script is automatically generated: DO NOT EDIT!!!",
709 "# Generated by Glasgow Haskell Compiler",
710 "# ngoqvam choHbogh vaj' vIHoHnISbej !!!!",
712 "$pvm_executable = '" ++ pvm_executable ++ "';",
713 "$pvm_executable_base = '" ++ pvm_executable_base ++ "';",
714 "$SysMan = '" ++ sysMan ++ "';",
716 {- ToDo: add the magical shortcuts again iff we actually use them -- HWL
717 "# first, some magical shortcuts to run "commands" on the binary",
718 "# (which is hidden)",
719 "if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {",
720 " local($cmd) = $1;",
721 " system("$cmd $pvm_executable");",
722 " exit(0); # all done",
725 "# Now, run the real binary; process the args first",
726 "$ENV{'PE'} = $pvm_executable_base;", -- ++ pvm_executable_base,
728 "$nprocessors = 0; # the default: as many PEs as machines in PVM config",
729 "@nonPVM_args = ();",
732 "args: while ($a = shift(@ARGV)) {",
733 " if ( $a eq '+RTS' ) {",
734 " $in_RTS_args = 1;",
735 " } elsif ( $a eq '-RTS' ) {",
736 " $in_RTS_args = 0;",
738 " if ( $a eq '-d' && $in_RTS_args ) {",
740 " } elsif ( $a =~ /^-qN(\\d+)/ && $in_RTS_args ) {",
741 " $nprocessors = $1;",
742 " } elsif ( $a =~ /^-qp(\\d+)/ && $in_RTS_args ) {",
743 " $nprocessors = $1;",
745 " push(@nonPVM_args, $a);",
749 "local($return_val) = 0;",
750 "# Start the parallel execution by calling SysMan",
751 "system(\"$SysMan $debug $pvm_executable $nprocessors @nonPVM_args\");",
753 "# ToDo: fix race condition moving files and flushing them!!",
754 "system(\"cp $ENV{'HOME'}/$pvm_executable_base.???.gr .\") if -f \"$ENV{'HOME'}/$pvm_executable_base.002.gr\";",
758 -----------------------------------------------------------------------------
759 -- Complain about non-dynamic flags in OPTIONS pragmas
761 checkProcessArgsResult flags basename suff
762 = do when (not (null flags)) (throwDyn (OtherError (
763 basename ++ "." ++ suff
764 ++ ": static flags are not allowed in {-# OPTIONS #-} pragmas:\n\t"
765 ++ unwords flags)) (ExitFailure 1))
767 -----------------------------------------------------------------------------
770 doLink :: [String] -> IO ()
772 ln <- readIORef v_Pgm_l
774 static <- readIORef v_Static
775 let imp = if static then "" else "_imp"
776 no_hs_main <- readIORef v_NoHsMain
778 o_file <- readIORef v_Output_file
779 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
781 pkg_lib_paths <- getPackageLibraryPath
782 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
784 lib_paths <- readIORef v_Library_paths
785 let lib_path_opts = map ("-L"++) lib_paths
787 pkg_libs <- getPackageLibraries
788 let pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
790 libs <- readIORef v_Cmdline_libraries
791 let lib_opts = map ("-l"++) (reverse libs)
792 -- reverse because they're added in reverse order from the cmd line
794 pkg_extra_ld_opts <- getPackageExtraLdOpts
796 -- probably _stub.o files
797 extra_ld_inputs <- readIORef v_Ld_inputs
799 -- opts from -optl-<blah>
800 extra_ld_opts <- getStaticOpts v_Opt_l
802 rts_pkg <- getPackageDetails ["rts"]
803 std_pkg <- getPackageDetails ["std"]
804 #ifdef mingw32_TARGET_OS
805 let extra_os = if static || no_hs_main
807 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
808 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
810 (md_c_flags, _) <- machdepCCOpts
811 runSomething "Linker"
813 ([ ln, verb, "-o", output_fn ]
816 #ifdef mingw32_TARGET_OS
826 #ifdef mingw32_TARGET_OS
827 ++ if static then [ "-u _PrelMain_mainIO_closure" , "-u ___init_PrelMain"] else []
829 ++ [ "-u PrelMain_mainIO_closure" , "-u __init_PrelMain"]
833 -- parallel only: move binary to another dir -- HWL
834 ways_ <- readIORef v_Ways
835 when (WayPar `elem` ways_) (do
836 success <- run_phase_MoveBinary output_fn
837 if success then return ()
838 else throwDyn (OtherError ("cannot move binary to PVM dir")))
840 -----------------------------------------------------------------------------
843 -- only for Win32, but bits that are #ifdefed in doLn are still #ifdefed here
844 -- in a vain attempt to aid future portability
845 doMkDLL :: [String] -> IO ()
847 ln <- readIORef v_Pgm_dll
849 static <- readIORef v_Static
850 let imp = if static then "" else "_imp"
851 no_hs_main <- readIORef v_NoHsMain
853 o_file <- readIORef v_Output_file
854 let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
856 pkg_lib_paths <- getPackageLibraryPath
857 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
859 lib_paths <- readIORef v_Library_paths
860 let lib_path_opts = map ("-L"++) lib_paths
862 pkg_libs <- getPackageLibraries
863 let pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
865 libs <- readIORef v_Cmdline_libraries
866 let lib_opts = map ("-l"++) (reverse libs)
867 -- reverse because they're added in reverse order from the cmd line
869 pkg_extra_ld_opts <- getPackageExtraLdOpts
871 -- probably _stub.o files
872 extra_ld_inputs <- readIORef v_Ld_inputs
874 -- opts from -optdll-<blah>
875 extra_ld_opts <- getStaticOpts v_Opt_dll
877 rts_pkg <- getPackageDetails ["rts"]
878 std_pkg <- getPackageDetails ["std"]
879 #ifdef mingw32_TARGET_OS
880 let extra_os = if static || no_hs_main
882 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
883 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
885 (md_c_flags, _) <- machdepCCOpts
886 runSomething "DLL creator"
888 ([ ln, verb, "-o", output_fn ]
891 #ifdef mingw32_TARGET_OS
893 ++ [ "--target=i386-mingw32" ]
901 ++ (case findPS (packString (concat extra_ld_opts)) (packString "--def") of
902 Nothing -> [ "--export-all" ]
908 -----------------------------------------------------------------------------
909 -- Just preprocess a file, put the result in a temp. file (used by the
910 -- compilation manager during the summary phase).
912 preprocess :: FilePath -> IO FilePath
913 preprocess filename =
914 ASSERT(haskellish_file filename)
915 do init_dyn_flags <- readIORef v_InitDynFlags
916 writeIORef v_DynFlags init_dyn_flags
917 pipeline <- genPipeline (StopBefore Hsc) ("preprocess") False
918 defaultHscLang filename
919 runPipeline pipeline filename False{-no linking-} False{-no -o flag-}
921 -----------------------------------------------------------------------------
922 -- Compile a single module, under the control of the compilation manager.
924 -- This is the interface between the compilation manager and the
925 -- compiler proper (hsc), where we deal with tedious details like
926 -- reading the OPTIONS pragma from the source file, and passing the
927 -- output of hsc through the C compiler.
929 -- The driver sits between 'compile' and 'hscMain', translating calls
930 -- to the former into calls to the latter, and results from the latter
931 -- into results from the former. It does things like preprocessing
932 -- the .hs file if necessary, and compiling up the .stub_c files to
933 -- generate Linkables.
935 -- NB. No old interface can also mean that the source has changed.
937 compile :: GhciMode -- distinguish batch from interactive
938 -> ModSummary -- summary, including source
939 -> Bool -- True <=> source unchanged
940 -> Bool -- True <=> have object
941 -> Maybe ModIface -- old interface, if available
942 -> HomeSymbolTable -- for home module ModDetails
943 -> HomeIfaceTable -- for home module Ifaces
944 -> PersistentCompilerState -- persistent compiler state
948 = CompOK PersistentCompilerState -- updated PCS
949 ModDetails -- new details (HST additions)
950 ModIface -- new iface (HIT additions)
952 -- new code; Nothing => compilation was not reqd
953 -- (old code is still valid)
955 | CompErrs PersistentCompilerState -- updated PCS
958 compile ghci_mode summary source_unchanged have_object
959 old_iface hst hit pcs = do
960 init_dyn_flags <- readIORef v_InitDynFlags
961 writeIORef v_DynFlags init_dyn_flags
963 showPass init_dyn_flags
964 (showSDoc (text "Compiling" <+> ppr (name_of_summary summary)))
966 let verb = verbosity init_dyn_flags
967 let location = ms_location summary
968 let input_fn = unJust "compile:hs" (ml_hs_file location)
969 let input_fnpp = unJust "compile:hspp" (ml_hspp_file location)
971 when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp))
973 opts <- getOptionsFromSource input_fnpp
974 processArgs dynamic_flags opts []
975 dyn_flags <- readIORef v_DynFlags
977 let hsc_lang = hscLang dyn_flags
978 output_fn <- case hsc_lang of
979 HscAsm -> newTempName (phaseInputExt As)
980 HscC -> newTempName (phaseInputExt HCc)
981 HscJava -> newTempName "java" -- ToDo
983 HscILX -> newTempName "ilx" -- ToDo
985 HscInterpreted -> return (error "no output file")
987 let (basename, _) = splitFilename input_fn
988 dyn_flags' = dyn_flags { hscOutName = output_fn,
989 hscStubCOutName = basename ++ "_stub.c",
990 hscStubHOutName = basename ++ "_stub.h" }
993 hsc_result <- hscMain ghci_mode dyn_flags'
994 (ms_mod summary) location
995 source_unchanged have_object old_iface hst hit pcs
998 HscFail pcs -> return (CompErrs pcs)
1000 HscNoRecomp pcs details iface -> return (CompOK pcs details iface Nothing)
1002 HscRecomp pcs details iface
1003 stub_h_exists stub_c_exists maybe_interpreted_code -> do
1006 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
1007 let stub_unlinked = case maybe_stub_o of
1009 Just stub_o -> [ DotO stub_o ]
1011 (hs_unlinked, unlinked_time) <-
1014 -- in interpreted mode, just return the compiled code
1015 -- as our "unlinked" object.
1017 case maybe_interpreted_code of
1018 Just (bcos,itbl_env) -> do tm <- getClockTime
1019 return ([BCOs bcos itbl_env], tm)
1020 Nothing -> panic "compile: no interpreted code"
1022 -- we're in batch mode: finish the compilation pipeline.
1023 _other -> do pipe <- genPipeline (StopBefore Ln) "" True
1025 -- runPipeline takes input_fn so it can split off
1026 -- the base name and use it as the base of
1027 -- the output object file.
1028 let (basename, suffix) = splitFilename input_fn
1029 o_file <- pipeLoop pipe output_fn False False
1031 o_time <- getModificationTime o_file
1032 return ([DotO o_file], o_time)
1034 let linkable = LM unlinked_time (moduleName (ms_mod summary))
1035 (hs_unlinked ++ stub_unlinked)
1037 return (CompOK pcs details iface (Just linkable))
1040 -----------------------------------------------------------------------------
1041 -- stub .h and .c files (for foreign export support)
1043 compileStub dflags stub_c_exists
1044 | not stub_c_exists = return Nothing
1045 | stub_c_exists = do
1046 -- compile the _stub.c file w/ gcc
1047 let stub_c = hscStubCOutName dflags
1048 pipeline <- genPipeline (StopBefore Ln) "" True defaultHscLang stub_c
1049 stub_o <- runPipeline pipeline stub_c False{-no linking-}
1050 False{-no -o option-}
1052 return (Just stub_o)