1 -----------------------------------------------------------------------------
2 -- $Id: DriverPipeline.hs,v 1.65 2001/05/01 16:01:06 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 = 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 ++ "'"))
265 takeWhile (phase_ne stop_phase ) $
266 dropWhile (phase_ne start_phase) $
272 :: [ (Phase, IntermediateFileType, String) ] -- phases to run
273 -> String -- input file
274 -> Bool -- doing linking afterward?
275 -> Bool -- take into account -o when generating output?
276 -> IO String -- return final filename
278 runPipeline pipeline input_fn do_linking use_ofile
279 = pipeLoop pipeline input_fn do_linking use_ofile basename suffix
280 where (basename, suffix) = splitFilename input_fn
282 pipeLoop [] input_fn _ _ _ _ = return input_fn
283 pipeLoop ((phase, keep, o_suffix):phases)
284 input_fn do_linking use_ofile orig_basename orig_suffix
287 output_fn <- outputFileName (null phases) keep o_suffix
289 carry_on <- run_phase phase orig_basename orig_suffix input_fn output_fn
290 -- sometimes we bail out early, eg. when the compiler's recompilation
291 -- checker has determined that recompilation isn't necessary.
293 then do let (_,keep,final_suffix) = last phases
294 ofile <- outputFileName True keep final_suffix
296 else do -- carry on ...
298 pipeLoop phases output_fn do_linking use_ofile orig_basename orig_suffix
301 outputFileName last_phase keep suffix
302 = do o_file <- readIORef v_Output_file
303 if last_phase && not do_linking && use_ofile && isJust o_file
306 Nothing -> error "outputFileName"
307 else if keep == Persistent
308 then odir_ify (orig_basename ++ '.':suffix)
309 else newTempName suffix
311 -------------------------------------------------------------------------------
314 run_phase Unlit _basename _suff input_fn output_fn
315 = do unlit <- readIORef v_Pgm_L
316 unlit_flags <- getOpts opt_L
317 runSomething "Literate pre-processor"
318 ("echo '# 1 \"" ++input_fn++"\"' > "++output_fn++" && "
319 ++ unlit ++ ' ':input_fn ++ " - >> " ++ output_fn)
322 -------------------------------------------------------------------------------
325 run_phase Cpp basename suff input_fn output_fn
326 = do src_opts <- getOptionsFromSource input_fn
327 unhandled_flags <- processArgs dynamic_flags src_opts []
328 checkProcessArgsResult unhandled_flags basename suff
330 do_cpp <- dynFlag cppFlag
333 cpp <- readIORef v_Pgm_P
334 hscpp_opts <- getOpts opt_P
335 hs_src_cpp_opts <- readIORef v_Hs_source_cpp_opts
337 cmdline_include_paths <- readIORef v_Include_paths
338 pkg_include_dirs <- getPackageIncludePath
339 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
343 (md_c_flags, _) <- machdepCCOpts
345 runSomething "C pre-processor"
347 (["echo '{-# LINE 1 \"" ++ input_fn ++ "\" #-}'", ">", output_fn, "&&",
353 ++ [ "-x", "c", input_fn, ">>", output_fn ]
356 runSomething "Ineffective C pre-processor"
357 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" #-}' > "
358 ++ output_fn ++ " && cat " ++ input_fn
359 ++ " >> " ++ output_fn)
362 -----------------------------------------------------------------------------
365 run_phase MkDependHS basename suff input_fn _output_fn = do
366 src <- readFile input_fn
367 let (import_sources, import_normals, module_name) = getImports src
369 let orig_fn = basename ++ '.':suff
370 deps_sources <- mapM (findDependency True orig_fn) import_sources
371 deps_normals <- mapM (findDependency False orig_fn) import_normals
372 let deps = deps_sources ++ deps_normals
374 osuf_opt <- readIORef v_Object_suf
375 let osuf = case osuf_opt of
376 Nothing -> phaseInputExt Ln
379 extra_suffixes <- readIORef v_Dep_suffixes
380 let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
381 ofiles = map (\suf -> basename ++ '.':suf) suffixes
383 objs <- mapM odir_ify ofiles
385 hdl <- readIORef v_Dep_tmp_hdl
387 -- std dependency of the object(s) on the source file
388 hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
390 let genDep (dep, False {- not an hi file -}) =
391 hPutStrLn hdl (unwords objs ++ " : " ++ dep)
392 genDep (dep, True {- is an hi file -}) = do
393 hisuf <- readIORef v_Hi_suf
394 let dep_base = remove_suffix '.' dep
395 deps = (dep_base ++ hisuf)
396 : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
397 -- length objs should be == length deps
398 sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
400 mapM genDep [ d | Just d <- deps ]
404 -- add the lines to dep_makefile:
408 -- if the dependency is on something other than a .hi file:
409 -- this.o this.p_o ... : dep
411 -- if the import is {-# SOURCE #-}
412 -- this.o this.p_o ... : dep.hi-boot[-$vers]
415 -- this.o ... : dep.hi
416 -- this.p_o ... : dep.p_hi
419 -- (where .o is $osuf, and the other suffixes come from
420 -- the cmdline -s options).
422 -----------------------------------------------------------------------------
425 -- Compilation of a single module, in "legacy" mode (_not_ under
426 -- the direction of the compilation manager).
427 run_phase Hsc basename suff input_fn output_fn
430 -- we add the current directory (i.e. the directory in which
431 -- the .hs files resides) to the import path, since this is
432 -- what gcc does, and it's probably what you want.
433 let current_dir = getdir basename
435 paths <- readIORef v_Include_paths
436 writeIORef v_Include_paths (current_dir : paths)
438 -- figure out where to put the .hi file
439 ohi <- readIORef v_Output_hi
440 hisuf <- readIORef v_Hi_suf
441 let hifile = case ohi of
442 Nothing -> basename ++ '.':hisuf
445 -- figure out which header files to #include in a generated .hc file
446 c_includes <- getPackageCIncludes
447 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
449 let cc_injects = unlines (map mk_include
450 (c_includes ++ reverse cmdline_includes))
453 '"':_{-"-} -> "#include "++h_file
454 '<':_ -> "#include "++h_file
455 _ -> "#include \""++h_file++"\""
457 writeIORef v_HCHeader cc_injects
459 -- figure out if the source has changed, for recompilation avoidance.
460 -- only do this if we're eventually going to generate a .o file.
461 -- (ToDo: do when generating .hc files too?)
463 -- Setting source_unchanged to True means that M.o seems
464 -- to be up to date wrt M.hs; so no need to recompile unless imports have
465 -- changed (which the compiler itself figures out).
466 -- Setting source_unchanged to False tells the compiler that M.o is out of
467 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
468 do_recomp <- readIORef v_Recomp
469 todo <- readIORef v_GhcMode
470 o_file' <- odir_ify (basename ++ '.':phaseInputExt Ln)
471 o_file <- osuf_ify o_file'
473 if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln ))
475 else do t1 <- getModificationTime (basename ++ '.':suff)
476 o_file_exists <- doesFileExist o_file
478 then return False -- Need to recompile
479 else do t2 <- getModificationTime o_file
484 -- build a ModuleLocation to pass to hscMain.
485 (srcimps,imps,mod_name) <- getImportsFromFile input_fn
488 <- mkHomeModuleLocn mod_name basename (basename ++ '.':suff)
491 dyn_flags <- readIORef v_DynFlags
493 let dyn_flags' = dyn_flags { hscOutName = output_fn,
494 hscStubCOutName = basename ++ "_stub.c",
495 hscStubHOutName = basename ++ "_stub.h" }
498 pcs <- initPersistentCompilerState
499 result <- hscMain OneShot
501 location{ ml_hspp_file=Just input_fn }
505 emptyModuleEnv -- HomeSymbolTable
506 emptyModuleEnv -- HomeIfaceTable
511 HscFail pcs -> throwDyn (PhaseFailed "hsc" (ExitFailure 1));
513 HscNoRecomp pcs details iface ->
515 runSomething "Touching object file" ("touch " ++ o_file);
519 HscRecomp pcs details iface stub_h_exists stub_c_exists
520 _maybe_interpreted_code -> do
523 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
526 Just stub_o -> add v_Ld_inputs stub_o
531 -----------------------------------------------------------------------------
534 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
535 -- way too many hacks, and I can't say I've ever used it anyway.
537 run_phase cc_phase basename suff input_fn output_fn
538 | cc_phase == Cc || cc_phase == HCc
539 = do cc <- readIORef v_Pgm_c
540 cc_opts <- (getOpts opt_c)
541 cmdline_include_dirs <- readIORef v_Include_paths
543 let hcc = cc_phase == HCc
545 -- add package include paths even if we're just compiling
546 -- .c files; this is the Value Add(TM) that using
547 -- ghc instead of gcc gives you :)
548 pkg_include_dirs <- getPackageIncludePath
549 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
552 mangle <- readIORef v_Do_asm_mangling
553 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
557 o2 <- readIORef v_minus_o2_for_C
558 let opt_flag | o2 = "-O2"
561 pkg_extra_cc_opts <- getPackageExtraCcOpts
563 split_objs <- readIORef v_Split_object_files
564 let split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
567 excessPrecision <- readIORef v_Excess_precision
569 runSomething "C Compiler"
570 (unwords ([ cc, "-x", "c", input_fn, "-o", output_fn ]
572 ++ (if cc_phase == HCc && mangle
575 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
576 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
579 ++ (if excessPrecision then [] else [ "-ffloat-store" ])
585 -- ToDo: postprocess the output from gcc
587 -----------------------------------------------------------------------------
590 run_phase Mangle _basename _suff input_fn output_fn
591 = do mangler <- readIORef v_Pgm_m
592 mangler_opts <- getOpts opt_m
594 if (prefixMatch "i386" cTARGETPLATFORM)
595 then do n_regs <- dynFlag stolen_x86_regs
596 return [ show n_regs ]
598 runSomething "Assembly Mangler"
601 ++ [ input_fn, output_fn ]
606 -----------------------------------------------------------------------------
609 run_phase SplitMangle _basename _suff input_fn _output_fn
610 = do splitter <- readIORef v_Pgm_s
612 -- this is the prefix used for the split .s files
613 tmp_pfx <- readIORef v_TmpDir
615 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
616 writeIORef v_Split_prefix split_s_prefix
617 addFilesToClean [split_s_prefix ++ "__*"] -- d:-)
619 -- allocate a tmp file to put the no. of split .s files in (sigh)
620 n_files <- newTempName "n_files"
622 runSomething "Split Assembly File"
629 -- save the number of split files for future references
630 s <- readFile n_files
631 let n = read s :: Int
632 writeIORef v_N_split_files n
635 -----------------------------------------------------------------------------
638 run_phase As _basename _suff input_fn output_fn
639 = do as <- readIORef v_Pgm_a
640 as_opts <- getOpts opt_a
642 cmdline_include_paths <- readIORef v_Include_paths
643 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
644 runSomething "Assembler"
645 (unwords (as : as_opts
646 ++ cmdline_include_flags
647 ++ [ "-c", input_fn, "-o", output_fn ]
651 run_phase SplitAs basename _suff _input_fn _output_fn
652 = do as <- readIORef v_Pgm_a
653 as_opts <- getOpts opt_a
655 split_s_prefix <- readIORef v_Split_prefix
656 n <- readIORef v_N_split_files
658 odir <- readIORef v_Output_dir
659 let real_odir = case odir of
663 let assemble_file n = do
664 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
665 let output_o = newdir real_odir
666 (basename ++ "__" ++ show n ++ ".o")
667 real_o <- osuf_ify output_o
668 runSomething "Assembler"
669 (unwords (as : as_opts
670 ++ [ "-c", "-o", real_o, input_s ]
673 mapM_ assemble_file [1..n]
676 -----------------------------------------------------------------------------
677 -- MoveBinary sort-of-phase
678 -- After having produced a binary, move it somewhere else and generate a
679 -- wrapper script calling the binary. Currently, we need this only in
680 -- a parallel way (i.e. in GUM), because PVM expects the binary in a
681 -- central directory.
682 -- This is called from doLink below, after linking. I haven't made it
683 -- a separate phase to minimise interfering with other modules, and
684 -- we don't need the generality of a phase (MoveBinary is always
685 -- done after linking and makes only sense in a parallel setup) -- HWL
687 run_phase_MoveBinary input_fn
689 top_dir <- readIORef v_TopDir
690 pvm_root <- getEnv "PVM_ROOT"
691 pvm_arch <- getEnv "PVM_ARCH"
693 pvm_executable_base = "=" ++ input_fn
694 pvm_executable = pvm_root ++ "/bin/" ++ pvm_arch ++ "/" ++ pvm_executable_base
695 sysMan = top_dir ++ "/ghc/rts/parallel/SysMan";
696 -- nuke old binary; maybe use configur'ed names for cp and rm?
697 system ("rm -f " ++ pvm_executable)
698 -- move the newly created binary into PVM land
699 system ("cp -p " ++ input_fn ++ " " ++ pvm_executable)
700 -- generate a wrapper script for running a parallel prg under PVM
701 writeFile input_fn (mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan)
704 -- generates a Perl skript starting a parallel prg under PVM
705 mk_pvm_wrapper_script :: String -> String -> String -> String
706 mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $
708 "eval 'exec perl -S $0 ${1+\"$@\"}'",
709 " if $running_under_some_shell;",
710 "# =!=!=!=!=!=!=!=!=!=!=!",
711 "# This script is automatically generated: DO NOT EDIT!!!",
712 "# Generated by Glasgow Haskell Compiler",
713 "# ngoqvam choHbogh vaj' vIHoHnISbej !!!!",
715 "$pvm_executable = '" ++ pvm_executable ++ "';",
716 "$pvm_executable_base = '" ++ pvm_executable_base ++ "';",
717 "$SysMan = '" ++ sysMan ++ "';",
719 {- ToDo: add the magical shortcuts again iff we actually use them -- HWL
720 "# first, some magical shortcuts to run "commands" on the binary",
721 "# (which is hidden)",
722 "if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {",
723 " local($cmd) = $1;",
724 " system("$cmd $pvm_executable");",
725 " exit(0); # all done",
728 "# Now, run the real binary; process the args first",
729 "$ENV{'PE'} = $pvm_executable_base;", -- ++ pvm_executable_base,
731 "$nprocessors = 0; # the default: as many PEs as machines in PVM config",
732 "@nonPVM_args = ();",
735 "args: while ($a = shift(@ARGV)) {",
736 " if ( $a eq '+RTS' ) {",
737 " $in_RTS_args = 1;",
738 " } elsif ( $a eq '-RTS' ) {",
739 " $in_RTS_args = 0;",
741 " if ( $a eq '-d' && $in_RTS_args ) {",
743 " } elsif ( $a =~ /^-qN(\\d+)/ && $in_RTS_args ) {",
744 " $nprocessors = $1;",
745 " } elsif ( $a =~ /^-qp(\\d+)/ && $in_RTS_args ) {",
746 " $nprocessors = $1;",
748 " push(@nonPVM_args, $a);",
752 "local($return_val) = 0;",
753 "# Start the parallel execution by calling SysMan",
754 "system(\"$SysMan $debug $pvm_executable $nprocessors @nonPVM_args\");",
756 "# ToDo: fix race condition moving files and flushing them!!",
757 "system(\"cp $ENV{'HOME'}/$pvm_executable_base.???.gr .\") if -f \"$ENV{'HOME'}/$pvm_executable_base.002.gr\";",
761 -----------------------------------------------------------------------------
762 -- Complain about non-dynamic flags in OPTIONS pragmas
764 checkProcessArgsResult flags basename suff
765 = do when (not (null flags)) (throwDyn (ProgramError (
766 basename ++ "." ++ suff
767 ++ ": static flags are not allowed in {-# OPTIONS #-} pragmas:\n\t"
768 ++ unwords flags)) (ExitFailure 1))
770 -----------------------------------------------------------------------------
773 doLink :: [String] -> IO ()
775 ln <- readIORef v_Pgm_l
777 static <- readIORef v_Static
778 let imp = if static then "" else "_imp"
779 no_hs_main <- readIORef v_NoHsMain
781 o_file <- readIORef v_Output_file
782 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
784 pkg_lib_paths <- getPackageLibraryPath
785 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
787 lib_paths <- readIORef v_Library_paths
788 let lib_path_opts = map ("-L"++) lib_paths
790 pkg_libs <- getPackageLibraries
791 let pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
793 libs <- readIORef v_Cmdline_libraries
794 let lib_opts = map ("-l"++) (reverse libs)
795 -- reverse because they're added in reverse order from the cmd line
797 pkg_extra_ld_opts <- getPackageExtraLdOpts
799 -- probably _stub.o files
800 extra_ld_inputs <- readIORef v_Ld_inputs
802 -- opts from -optl-<blah>
803 extra_ld_opts <- getStaticOpts v_Opt_l
805 rts_pkg <- getPackageDetails ["rts"]
806 std_pkg <- getPackageDetails ["std"]
807 #ifdef mingw32_TARGET_OS
808 let extra_os = if static || no_hs_main
810 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
811 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
813 (md_c_flags, _) <- machdepCCOpts
814 runSomething "Linker"
816 ([ ln, verb, "-o", output_fn ]
819 #ifdef mingw32_TARGET_OS
829 #ifdef mingw32_TARGET_OS
830 ++ if static then [ "-u _PrelMain_mainIO_closure" , "-u ___init_PrelMain"] else []
832 ++ [ "-u PrelMain_mainIO_closure" , "-u __init_PrelMain"]
836 -- parallel only: move binary to another dir -- HWL
837 ways_ <- readIORef v_Ways
838 when (WayPar `elem` ways_) (do
839 success <- run_phase_MoveBinary output_fn
840 if success then return ()
841 else throwDyn (InstallationError ("cannot move binary to PVM dir")))
843 -----------------------------------------------------------------------------
846 -- only for Win32, but bits that are #ifdefed in doLn are still #ifdefed here
847 -- in a vain attempt to aid future portability
848 doMkDLL :: [String] -> IO ()
850 ln <- readIORef v_Pgm_dll
852 static <- readIORef v_Static
853 let imp = if static then "" else "_imp"
854 no_hs_main <- readIORef v_NoHsMain
856 o_file <- readIORef v_Output_file
857 let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
859 pkg_lib_paths <- getPackageLibraryPath
860 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
862 lib_paths <- readIORef v_Library_paths
863 let lib_path_opts = map ("-L"++) lib_paths
865 pkg_libs <- getPackageLibraries
866 let pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
868 libs <- readIORef v_Cmdline_libraries
869 let lib_opts = map ("-l"++) (reverse libs)
870 -- reverse because they're added in reverse order from the cmd line
872 pkg_extra_ld_opts <- getPackageExtraLdOpts
874 -- probably _stub.o files
875 extra_ld_inputs <- readIORef v_Ld_inputs
877 -- opts from -optdll-<blah>
878 extra_ld_opts <- getStaticOpts v_Opt_dll
880 rts_pkg <- getPackageDetails ["rts"]
881 std_pkg <- getPackageDetails ["std"]
882 #ifdef mingw32_TARGET_OS
883 let extra_os = if static || no_hs_main
885 else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
886 head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
888 (md_c_flags, _) <- machdepCCOpts
889 runSomething "DLL creator"
891 ([ ln, verb, "-o", output_fn ]
894 #ifdef mingw32_TARGET_OS
896 ++ [ "--target=i386-mingw32" ]
904 ++ (case findPS (packString (concat extra_ld_opts)) (packString "--def") of
905 Nothing -> [ "--export-all" ]
911 -----------------------------------------------------------------------------
912 -- Just preprocess a file, put the result in a temp. file (used by the
913 -- compilation manager during the summary phase).
915 preprocess :: FilePath -> IO FilePath
916 preprocess filename =
917 ASSERT(haskellish_file filename)
918 do init_dyn_flags <- readIORef v_InitDynFlags
919 writeIORef v_DynFlags init_dyn_flags
920 pipeline <- genPipeline (StopBefore Hsc) ("preprocess") False
921 defaultHscLang filename
922 runPipeline pipeline filename False{-no linking-} False{-no -o flag-}
924 -----------------------------------------------------------------------------
925 -- Compile a single module, under the control of the compilation manager.
927 -- This is the interface between the compilation manager and the
928 -- compiler proper (hsc), where we deal with tedious details like
929 -- reading the OPTIONS pragma from the source file, and passing the
930 -- output of hsc through the C compiler.
932 -- The driver sits between 'compile' and 'hscMain', translating calls
933 -- to the former into calls to the latter, and results from the latter
934 -- into results from the former. It does things like preprocessing
935 -- the .hs file if necessary, and compiling up the .stub_c files to
936 -- generate Linkables.
938 -- NB. No old interface can also mean that the source has changed.
940 compile :: GhciMode -- distinguish batch from interactive
941 -> ModSummary -- summary, including source
942 -> Bool -- True <=> source unchanged
943 -> Bool -- True <=> have object
944 -> Maybe ModIface -- old interface, if available
945 -> HomeSymbolTable -- for home module ModDetails
946 -> HomeIfaceTable -- for home module Ifaces
947 -> PersistentCompilerState -- persistent compiler state
951 = CompOK PersistentCompilerState -- updated PCS
952 ModDetails -- new details (HST additions)
953 ModIface -- new iface (HIT additions)
955 -- new code; Nothing => compilation was not reqd
956 -- (old code is still valid)
958 | CompErrs PersistentCompilerState -- updated PCS
961 compile ghci_mode summary source_unchanged have_object
962 old_iface hst hit pcs = do
963 init_dyn_flags <- readIORef v_InitDynFlags
964 writeIORef v_DynFlags init_dyn_flags
966 showPass init_dyn_flags
967 (showSDoc (text "Compiling" <+> ppr (name_of_summary summary)))
969 let verb = verbosity init_dyn_flags
970 let location = ms_location summary
971 let input_fn = unJust "compile:hs" (ml_hs_file location)
972 let input_fnpp = unJust "compile:hspp" (ml_hspp_file location)
974 when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp))
976 opts <- getOptionsFromSource input_fnpp
977 processArgs dynamic_flags opts []
978 dyn_flags <- readIORef v_DynFlags
980 let hsc_lang = hscLang dyn_flags
981 output_fn <- case hsc_lang of
982 HscAsm -> newTempName (phaseInputExt As)
983 HscC -> newTempName (phaseInputExt HCc)
984 HscJava -> newTempName "java" -- ToDo
986 HscILX -> newTempName "ilx" -- ToDo
988 HscInterpreted -> return (error "no output file")
990 let (basename, _) = splitFilename input_fn
991 dyn_flags' = dyn_flags { hscOutName = output_fn,
992 hscStubCOutName = basename ++ "_stub.c",
993 hscStubHOutName = basename ++ "_stub.h" }
995 -- figure out which header files to #include in a generated .hc file
996 c_includes <- getPackageCIncludes
997 cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
999 let cc_injects = unlines (map mk_include
1000 (c_includes ++ reverse cmdline_includes))
1003 '"':_{-"-} -> "#include "++h_file
1004 '<':_ -> "#include "++h_file
1005 _ -> "#include \""++h_file++"\""
1007 writeIORef v_HCHeader cc_injects
1010 hsc_result <- hscMain ghci_mode dyn_flags'
1011 (ms_mod summary) location
1012 source_unchanged have_object old_iface hst hit pcs
1015 HscFail pcs -> return (CompErrs pcs)
1017 HscNoRecomp pcs details iface -> return (CompOK pcs details iface Nothing)
1019 HscRecomp pcs details iface
1020 stub_h_exists stub_c_exists maybe_interpreted_code -> do
1023 maybe_stub_o <- compileStub dyn_flags' stub_c_exists
1024 let stub_unlinked = case maybe_stub_o of
1026 Just stub_o -> [ DotO stub_o ]
1028 (hs_unlinked, unlinked_time) <-
1031 -- in interpreted mode, just return the compiled code
1032 -- as our "unlinked" object.
1034 case maybe_interpreted_code of
1035 Just (bcos,itbl_env) -> do tm <- getClockTime
1036 return ([BCOs bcos itbl_env], tm)
1037 Nothing -> panic "compile: no interpreted code"
1039 -- we're in batch mode: finish the compilation pipeline.
1040 _other -> do pipe <- genPipeline (StopBefore Ln) "" True
1042 -- runPipeline takes input_fn so it can split off
1043 -- the base name and use it as the base of
1044 -- the output object file.
1045 let (basename, suffix) = splitFilename input_fn
1046 o_file <- pipeLoop pipe output_fn False False
1048 o_time <- getModificationTime o_file
1049 return ([DotO o_file], o_time)
1051 let linkable = LM unlinked_time (moduleName (ms_mod summary))
1052 (hs_unlinked ++ stub_unlinked)
1054 return (CompOK pcs details iface (Just linkable))
1057 -----------------------------------------------------------------------------
1058 -- stub .h and .c files (for foreign export support)
1060 compileStub dflags stub_c_exists
1061 | not stub_c_exists = return Nothing
1062 | stub_c_exists = do
1063 -- compile the _stub.c file w/ gcc
1064 let stub_c = hscStubCOutName dflags
1065 pipeline <- genPipeline (StopBefore Ln) "" True defaultHscLang stub_c
1066 stub_o <- runPipeline pipeline stub_c False{-no linking-}
1067 False{-no -o option-}
1069 return (Just stub_o)