1 -----------------------------------------------------------------------------
4 -- (c) Simon Marlow 2000
6 -----------------------------------------------------------------------------
8 module Main (main) where
28 #define GLOBAL_VAR(name,value,ty) \
29 name = global (value) :: IORef (ty); \
32 -----------------------------------------------------------------------------
35 -- time commands when run with -v
41 -- make sure OPTIONS in .hs file propogate to .hc file if -C or -keep-hc-file-too
42 -- reading the package configuration file is too slow
44 -----------------------------------------------------------------------------
45 -- Differences vs. old driver:
47 -- No more "Enter your Haskell program, end with ^D (on a line of its own):"
48 -- consistency checking removed (may do this properly later)
50 -- no hi diffs (could be added later)
53 -----------------------------------------------------------------------------
54 -- non-configured things
56 cHaskell1Version = "5" -- i.e., Haskell 98
58 -----------------------------------------------------------------------------
62 hPutStr stderr "\nUsage: For basic information, try the `-help' option.\n"
66 let usage_filename = "ghc-usage.txt"
67 usage_dir = findFile usage_filename cGHC_DRIVER_DIR
68 usage <- readFile (usage_dir ++ "/" ++ usage_filename)
73 dump ('$':'$':s) = hPutStr stderr get_prog_name >> dump s
74 dump (c:s) = hPutChar stderr c >> dump s
76 version_str = cProjectVersion ++
77 ( if cProjectPatchLevel /= "0" && cProjectPatchLevel /= ""
78 then '.':cProjectPatchLevel
81 -----------------------------------------------------------------------------
85 Phase of the | Suffix saying | Flag saying | (suffix of)
86 compilation system | ``start here''| ``stop after''| output file
88 literate pre-processor | .lhs | - | -
89 C pre-processor (opt.) | - | -E | -
90 Haskell compiler | .hs | -C, -S | .hc, .s
91 C compiler (opt.) | .hc or .c | -S | .s
92 assembler | .s or .S | -c | .o
93 linker | other | - | a.out
97 = MkDependHS -- haskell dependency generation
102 | HCc -- Haskellised C (as opposed to vanilla C) compilation
103 | Mangle -- assembly mangling, now done by a separate script.
104 | SplitMangle -- after mangler if splitting
108 deriving (Eq,Ord,Enum,Ix,Show,Bounded)
110 initial_phase = Unlit
112 -----------------------------------------------------------------------------
116 = UnknownFileType String
119 | MultipleSrcsOneOutput
120 | UnknownPackage String
121 | WayCombinationNotSupported [WayName]
122 | PhaseFailed String ExitCode
128 GLOBAL_VAR(prog_name, "ghc", String)
130 get_prog_name = unsafePerformIO (readIORef prog_name) -- urk!
132 instance Show BarfKind where
134 = showString get_prog_name . showString ": " . showBarf e
136 showBarf AmbiguousPhase
137 = showString "only one of the flags -M, -E, -C, -S, -c is allowed"
138 showBarf (UnknownFileType s)
139 = showString "unknown file type, and linking not done: " . showString s
140 showBarf (UnknownFlag s)
141 = showString "unrecognised flag: " . showString s
142 showBarf MultipleSrcsOneOutput
143 = showString "can't apply -o option to multiple source files"
144 showBarf (UnknownPackage s)
145 = showString "unknown package name: " . showString s
146 showBarf (WayCombinationNotSupported ws)
147 = showString "combination not supported: "
148 . foldr1 (\a b -> a . showChar '/' . b)
149 (map (showString . wayName . lkupWay) ws)
150 showBarf (NoInputFiles)
151 = showString "no input files"
152 showBarf (OtherError str)
155 barfKindTc = mkTyCon "BarfKind"
157 instance Typeable BarfKind where
158 typeOf _ = mkAppTy barfKindTc []
160 -----------------------------------------------------------------------------
163 GLOBAL_VAR(files_to_clean, [], [String])
165 cleanTempFiles :: IO ()
167 fs <- readIORef files_to_clean
168 verb <- readIORef verbose
171 (do on verb (hPutStrLn stderr ("removing: " ++ f))
172 if '*' `elem` f then system ("rm -f " ++ f) >> return ()
175 (\e -> on verb (hPutStrLn stderr
176 ("warning: can't remove tmp file" ++ f)))
179 -----------------------------------------------------------------------------
180 -- Which phase to stop at
182 GLOBAL_VAR(stop_after, Ln, Phase)
184 end_phase_flag :: String -> Maybe Phase
185 end_phase_flag "-M" = Just MkDependHS
186 end_phase_flag "-E" = Just Cpp
187 end_phase_flag "-C" = Just Hsc
188 end_phase_flag "-S" = Just Mangle
189 end_phase_flag "-c" = Just As
190 end_phase_flag _ = Nothing
192 getStopAfter :: [String]
193 -> IO ( [String] -- rest of command line
194 , Phase -- stop after phase
195 , Bool -- do linking?
198 = case my_partition end_phase_flag flags of
199 ([] , rest) -> return (rest, As, True)
200 ([one], rest) -> return (rest, one, False)
201 (_ , rest) -> throwDyn AmbiguousPhase
203 -----------------------------------------------------------------------------
204 -- Global compilation flags
207 GLOBAL_VAR(cpp_flag, False, Bool)
208 hs_source_cpp_opts = global
209 [ "-D__HASKELL1__="++cHaskell1Version
210 , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
212 , "-D__CONCURRENT_HASKELL__"
215 -- Keep output from intermediate phases
216 GLOBAL_VAR(keep_hi_diffs, False, Bool)
217 GLOBAL_VAR(keep_hc_files, False, Bool)
218 GLOBAL_VAR(keep_s_files, False, Bool)
219 GLOBAL_VAR(keep_raw_s_files, False, Bool)
221 -- Compiler RTS options
222 GLOBAL_VAR(specific_heap_size, 6 * 1000 * 1000, Integer)
223 GLOBAL_VAR(specific_stack_size, 1000 * 1000, Integer)
224 GLOBAL_VAR(scale_sizes_by, 1.0, Double)
227 GLOBAL_VAR(verbose, False, Bool)
228 is_verbose = do v <- readIORef verbose; if v then return "-v" else return ""
231 GLOBAL_VAR(dry_run, False, Bool)
232 GLOBAL_VAR(recomp, True, Bool)
233 GLOBAL_VAR(tmp_prefix, cTMPDIR, String)
234 GLOBAL_VAR(stolen_x86_regs, 4, Int)
235 GLOBAL_VAR(static, True, Bool) -- ToDo: not for mingw32
236 GLOBAL_VAR(collect_ghc_timing, False, Bool)
237 GLOBAL_VAR(do_asm_mangling, True, Bool)
239 -----------------------------------------------------------------------------
240 -- Splitting object files (for libraries)
242 GLOBAL_VAR(split_object_files, False, Bool)
243 GLOBAL_VAR(split_prefix, "", String)
244 GLOBAL_VAR(n_split_files, 0, Int)
247 can_split = prefixMatch "i386" cTARGETPLATFORM
248 || prefixMatch "alpha" cTARGETPLATFORM
249 || prefixMatch "hppa" cTARGETPLATFORM
250 || prefixMatch "m68k" cTARGETPLATFORM
251 || prefixMatch "mips" cTARGETPLATFORM
252 || prefixMatch "powerpc" cTARGETPLATFORM
253 || prefixMatch "rs6000" cTARGETPLATFORM
254 || prefixMatch "sparc" cTARGETPLATFORM
256 -----------------------------------------------------------------------------
257 -- Compiler output options
264 GLOBAL_VAR(hsc_lang, if cGhcWithNativeCodeGen == "YES" &&
265 prefixMatch "i386" cTARGETPLATFORM
270 GLOBAL_VAR(output_dir, Nothing, Maybe String)
271 GLOBAL_VAR(output_suf, Nothing, Maybe String)
272 GLOBAL_VAR(output_file, Nothing, Maybe String)
273 GLOBAL_VAR(output_hi, Nothing, Maybe String)
275 GLOBAL_VAR(ld_inputs, [], [String])
277 odir_ify :: String -> IO String
279 odir_opt <- readIORef output_dir
282 Just d -> return (newdir d f)
284 osuf_ify :: String -> IO String
286 osuf_opt <- readIORef output_suf
289 Just s -> return (newsuf s f)
291 -----------------------------------------------------------------------------
294 GLOBAL_VAR(produceHi, True, Bool)
295 GLOBAL_VAR(hi_on_stdout, False, Bool)
296 GLOBAL_VAR(hi_with, "", String)
297 GLOBAL_VAR(hi_suf, "hi", String)
299 data HiDiffFlag = NormalHiDiffs | UsageHiDiffs | NoHiDiffs
300 GLOBAL_VAR(hi_diffs, NoHiDiffs, HiDiffFlag)
302 -----------------------------------------------------------------------------
303 -- Warnings & sanity checking
305 -- Warning packages that are controlled by -W and -Wall. The 'standard'
306 -- warnings that you get all the time are
308 -- -fwarn-overlapping-patterns
309 -- -fwarn-missing-methods
310 -- -fwarn-missing-fields
311 -- -fwarn-deprecations
312 -- -fwarn-duplicate-exports
314 -- these are turned off by -Wnot.
316 standardWarnings = [ "-fwarn-overlapping-patterns"
317 , "-fwarn-missing-methods"
318 , "-fwarn-missing-fields"
319 , "-fwarn-deprecations"
320 , "-fwarn-duplicate-exports"
322 minusWOpts = standardWarnings ++
323 [ "-fwarn-unused-binds"
324 , "-fwarn-unused-matches"
325 , "-fwarn-incomplete-patterns"
326 , "-fwarn-unused-imports"
328 minusWallOpts = minusWOpts ++
329 [ "-fwarn-type-defaults"
330 , "-fwarn-name-shadowing"
331 , "-fwarn-missing-signatures"
334 data WarningState = W_default | W_ | W_all | W_not
336 GLOBAL_VAR(warning_opt, W_default, WarningState)
338 -----------------------------------------------------------------------------
339 -- Compiler optimisation options
341 GLOBAL_VAR(opt_level, 0, Int)
343 setOptLevel :: String -> IO ()
344 setOptLevel "" = do { writeIORef opt_level 1; go_via_C }
345 setOptLevel "not" = writeIORef opt_level 0
346 setOptLevel [c] | isDigit c = do
347 let level = ord c - ord '0'
348 writeIORef opt_level level
349 on (level >= 1) go_via_C
350 setOptLevel s = throwDyn (UnknownFlag ("-O"++s))
353 l <- readIORef hsc_lang
354 case l of { HscAsm -> writeIORef hsc_lang HscC;
355 _other -> return () }
357 GLOBAL_VAR(opt_minus_o2_for_C, False, Bool)
359 GLOBAL_VAR(opt_MaxSimplifierIterations, 4, Int)
360 GLOBAL_VAR(opt_StgStats, False, Bool)
361 GLOBAL_VAR(opt_UsageSPInf, False, Bool) -- Off by default
363 hsc_minusO2_flags = hsc_minusO_flags -- for now
365 hsc_minusNoO_flags = do
366 iter <- readIORef opt_MaxSimplifierIterations
368 "-fignore-interface-pragmas",
369 "-fomit-interface-pragmas",
372 "-fmax-simplifier-iterations" ++ show iter,
376 hsc_minusO_flags = do
377 iter <- readIORef opt_MaxSimplifierIterations
378 usageSP <- readIORef opt_UsageSPInf
379 stgstats <- readIORef opt_StgStats
384 "-fdo-eta-reduction",
385 "-fdo-lambda-eta-expansion",
390 -- initial simplify: mk specialiser happy: minimum effort please
395 -- Don't inline anything till full laziness has bitten
396 -- In particular, inlining wrappers inhibits floating
397 -- e.g. ...(case f x of ...)...
398 -- ==> ...(case (case x of I# x# -> fw x#) of ...)...
399 -- ==> ...(case x of I# x# -> case fw x# of ...)...
400 -- and now the redex (f x) isn't floatable any more
403 -- Similarly, don't apply any rules until after full
404 -- laziness. Notably, list fusion can prevent floating.
407 -- Don't do case-of-case transformations.
408 -- This makes full laziness work better
410 "-fmax-simplifier-iterations2",
413 -- Specialisation is best done before full laziness
414 -- so that overloaded functions have all their dictionary lambdas manifest
423 -- Want to run with inline phase 1 after the specialiser to give
424 -- maximum chance for fusion to work before we inline build/augment
425 -- in phase 2. This made a difference in 'ansi' where an
426 -- overloaded function wasn't inlined till too late.
427 "-fmax-simplifier-iterations" ++ show iter,
430 -- infer usage information here in case we need it later.
431 -- (add more of these where you need them --KSW 1999-04)
432 if usageSP then "-fusagesp" else "",
436 -- Need inline-phase2 here so that build/augment get
437 -- inlined. I found that spectral/hartel/genfft lost some useful
438 -- strictness in the function sumcode' if augment is not inlined
439 -- before strictness analysis runs
442 "-fmax-simplifier-iterations2",
448 "-fmax-simplifier-iterations2",
449 -- No -finline-phase: allow all Ids to be inlined now
450 -- This gets foldr inlined before strictness analysis
459 "-fmax-simplifier-iterations" ++ show iter,
460 -- No -finline-phase: allow all Ids to be inlined now
464 -- nofib/spectral/hartel/wang doubles in speed if you
465 -- do full laziness late in the day. It only happens
466 -- after fusion and other stuff, so the early pass doesn't
467 -- catch it. For the record, the redex is
468 -- f_el22 (f_el21 r_midblock)
470 -- Leave out lambda lifting for now
471 -- "-fsimplify", -- Tidy up results of full laziness
473 -- "-fmax-simplifier-iterations2",
475 -- "-ffloat-outwards-full",
477 -- We want CSE to follow the final full-laziness pass, because it may
478 -- succeed in commoning up things floated out by full laziness.
480 -- CSE must immediately follow a simplification pass, because it relies
481 -- on the no-shadowing invariant. See comments at the top of CSE.lhs
482 -- So it must NOT follow float-inwards, which can give rise to shadowing,
483 -- even if its input doesn't have shadows. Hence putting it between
490 -- Case-liberation for -O2. This should be after
491 -- strictness analysis and the simplification which follows it.
493 -- ( ($OptLevel != 2)
495 -- : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
497 -- "-fliberate-case",
499 -- Final clean-up simplification:
502 "-fmax-simplifier-iterations" ++ show iter,
503 -- No -finline-phase: allow all Ids to be inlined now
508 -----------------------------------------------------------------------------
511 split_marker = ':' -- not configurable
513 import_paths, include_paths, library_paths :: IORef [String]
514 GLOBAL_VAR(import_paths, ["."], [String])
515 GLOBAL_VAR(include_paths, ["."], [String])
516 GLOBAL_VAR(library_paths, [], [String])
518 GLOBAL_VAR(cmdline_libraries, [], [String])
519 GLOBAL_VAR(cmdline_hc_includes, [], [String])
521 augment_import_paths :: String -> IO ()
522 augment_import_paths "" = writeIORef import_paths []
523 augment_import_paths path
524 = do paths <- readIORef import_paths
525 writeIORef import_paths (paths ++ dirs)
526 where dirs = split split_marker path
528 augment_include_paths :: String -> IO ()
529 augment_include_paths path
530 = do paths <- readIORef include_paths
531 writeIORef include_paths (paths ++ split split_marker path)
533 augment_library_paths :: String -> IO ()
534 augment_library_paths path
535 = do paths <- readIORef library_paths
536 writeIORef library_paths (paths ++ split split_marker path)
538 -----------------------------------------------------------------------------
541 GLOBAL_VAR(package_config, (findFile "package.conf" (cGHC_DRIVER_DIR++"/package.conf.inplace")), String)
543 listPackages :: IO ()
545 details <- readIORef package_details
546 hPutStr stdout (listPkgs details)
553 details <- readIORef package_details
554 hPutStr stdout "Reading package info from stdin... "
556 let new_pkg = read stuff :: (String,Package)
558 (\e -> throwDyn (OtherError "parse error in package info"))
559 hPutStrLn stdout "done."
560 if (fst new_pkg `elem` map fst details)
561 then throwDyn (OtherError ("package `" ++ fst new_pkg ++
562 "' already installed"))
564 conf_file <- readIORef package_config
565 savePackageConfig conf_file
566 maybeRestoreOldConfig conf_file $ do
567 writeNewConfig conf_file ( ++ [new_pkg])
570 deletePackage :: String -> IO ()
571 deletePackage pkg = do
573 details <- readIORef package_details
574 if (pkg `notElem` map fst details)
575 then throwDyn (OtherError ("package `" ++ pkg ++ "' not installed"))
577 conf_file <- readIORef package_config
578 savePackageConfig conf_file
579 maybeRestoreOldConfig conf_file $ do
580 writeNewConfig conf_file (filter ((/= pkg) . fst))
583 checkConfigAccess :: IO ()
584 checkConfigAccess = do
585 conf_file <- readIORef package_config
586 access <- fileAccess conf_file True True False
588 then throwDyn (OtherError "you don't have permission to modify the package configuration file")
591 maybeRestoreOldConfig :: String -> IO () -> IO ()
592 maybeRestoreOldConfig conf_file io
593 = catchAllIO io (\e -> do
594 hPutStr stdout "\nWARNING: an error was encountered while the new \n\
595 \configuration was being written. Attempting to \n\
596 \restore the old configuration... "
597 system ("cp " ++ conf_file ++ ".old " ++ conf_file)
598 hPutStrLn stdout "done."
602 writeNewConfig :: String -> ([(String,Package)] -> [(String,Package)]) -> IO ()
603 writeNewConfig conf_file fn = do
604 hPutStr stdout "Writing new package config file... "
605 old_details <- readIORef package_details
606 h <- openFile conf_file WriteMode
607 hPutStr h (dumpPackages (fn old_details))
609 hPutStrLn stdout "done."
611 savePackageConfig :: String -> IO ()
612 savePackageConfig conf_file = do
613 hPutStr stdout "Saving old package config file... "
614 -- mv rather than cp because we've already done an hGetContents
615 -- on this file so we won't be able to open it for writing
616 -- unless we move the old one out of the way...
617 system ("mv " ++ conf_file ++ " " ++ conf_file ++ ".old")
618 hPutStrLn stdout "done."
620 -- package list is maintained in dependency order
621 packages = global ["std", "rts", "gmp"] :: IORef [String]
622 -- comma in value, so can't use macro, grrr
623 {-# NOINLINE packages #-}
625 addPackage :: String -> IO ()
627 = do pkg_details <- readIORef package_details
628 case lookup package pkg_details of
629 Nothing -> throwDyn (UnknownPackage package)
631 ps <- readIORef packages
634 else do mapM_ addPackage (package_deps details)
635 ps <- readIORef packages
636 writeIORef packages (package:ps)
638 getPackageImportPath :: IO [String]
639 getPackageImportPath = do
640 ps <- readIORef packages
641 ps' <- getPackageDetails ps
642 return (nub (concat (map import_dirs ps')))
644 getPackageIncludePath :: IO [String]
645 getPackageIncludePath = do
646 ps <- readIORef packages
647 ps' <- getPackageDetails ps
648 return (nub (filter (not.null) (concatMap include_dirs ps')))
650 -- includes are in reverse dependency order (i.e. rts first)
651 getPackageCIncludes :: IO [String]
652 getPackageCIncludes = do
653 ps <- readIORef packages
654 ps' <- getPackageDetails ps
655 return (reverse (nub (filter (not.null) (concatMap c_includes ps'))))
657 getPackageLibraryPath :: IO [String]
658 getPackageLibraryPath = do
659 ps <- readIORef packages
660 ps' <- getPackageDetails ps
661 return (nub (concat (map library_dirs ps')))
663 getPackageLibraries :: IO [String]
664 getPackageLibraries = do
665 ps <- readIORef packages
666 ps' <- getPackageDetails ps
667 tag <- readIORef build_tag
668 let suffix = if null tag then "" else '_':tag
669 return (concat (map libraries ps'))
671 getPackageExtraGhcOpts :: IO [String]
672 getPackageExtraGhcOpts = do
673 ps <- readIORef packages
674 ps' <- getPackageDetails ps
675 return (concatMap extra_ghc_opts ps')
677 getPackageExtraCcOpts :: IO [String]
678 getPackageExtraCcOpts = do
679 ps <- readIORef packages
680 ps' <- getPackageDetails ps
681 return (concatMap extra_cc_opts ps')
683 getPackageExtraLdOpts :: IO [String]
684 getPackageExtraLdOpts = do
685 ps <- readIORef packages
686 ps' <- getPackageDetails ps
687 return (concatMap extra_ld_opts ps')
689 getPackageDetails :: [String] -> IO [Package]
690 getPackageDetails ps = do
691 pkg_details <- readIORef package_details
692 return [ pkg | p <- ps, Just pkg <- [ lookup p pkg_details ] ]
694 GLOBAL_VAR(package_details, (error "package_details"), [(String,Package)])
696 -----------------------------------------------------------------------------
699 -- The central concept of a "way" is that all objects in a given
700 -- program must be compiled in the same "way". Certain options change
701 -- parameters of the virtual machine, eg. profiling adds an extra word
702 -- to the object header, so profiling objects cannot be linked with
703 -- non-profiling objects.
705 -- After parsing the command-line options, we determine which "way" we
706 -- are building - this might be a combination way, eg. profiling+ticky-ticky.
708 -- We then find the "build-tag" associated with this way, and this
709 -- becomes the suffix used to find .hi files and libraries used in
712 GLOBAL_VAR(build_tag, "", String)
741 GLOBAL_VAR(ways, [] ,[WayName])
743 allowed_combinations =
744 [ [WayProf,WayUnreg],
745 [WayProf,WaySMP] -- works???
748 findBuildTag :: IO [String] -- new options
750 way_names <- readIORef ways
751 case sort way_names of
752 [] -> do writeIORef build_tag ""
755 [w] -> do let details = lkupWay w
756 writeIORef build_tag (wayTag details)
757 return (wayOpts details)
759 ws -> if ws `notElem` allowed_combinations
760 then throwDyn (WayCombinationNotSupported ws)
761 else let stuff = map lkupWay ws
762 tag = concat (map wayTag stuff)
763 flags = map wayOpts stuff
765 writeIORef build_tag tag
766 return (concat flags)
769 case lookup w way_details of
770 Nothing -> error "findBuildTag"
771 Just details -> details
779 way_details :: [ (WayName, Way) ]
781 [ (WayProf, Way "p" "Profiling"
784 , "-optc-DPROFILING" ]),
786 (WayTicky, Way "t" "Ticky-ticky Profiling"
789 , "-optc-DTICKY_TICKY" ]),
791 (WayUnreg, Way "u" "Unregisterised"
793 , "-optc-DUSE_MINIINTERPRETER"
794 , "-fno-asm-mangling"
795 , "-funregisterised" ]),
797 (WayPar, Way "mp" "Parallel"
800 , "-D__PARALLEL_HASKELL__"
802 , "-package concurrent" ]),
804 (WayGran, Way "mg" "Gransim"
809 , "-package concurrent" ]),
811 (WaySMP, Way "s" "SMP"
817 (WayUser_a, Way "a" "User way 'a'" ["$WAY_a_REAL_OPTS"]),
818 (WayUser_b, Way "b" "User way 'b'" ["$WAY_b_REAL_OPTS"]),
819 (WayUser_c, Way "c" "User way 'c'" ["$WAY_c_REAL_OPTS"]),
820 (WayUser_d, Way "d" "User way 'd'" ["$WAY_d_REAL_OPTS"]),
821 (WayUser_e, Way "e" "User way 'e'" ["$WAY_e_REAL_OPTS"]),
822 (WayUser_f, Way "f" "User way 'f'" ["$WAY_f_REAL_OPTS"]),
823 (WayUser_g, Way "g" "User way 'g'" ["$WAY_g_REAL_OPTS"]),
824 (WayUser_h, Way "h" "User way 'h'" ["$WAY_h_REAL_OPTS"]),
825 (WayUser_i, Way "i" "User way 'i'" ["$WAY_i_REAL_OPTS"]),
826 (WayUser_j, Way "j" "User way 'j'" ["$WAY_j_REAL_OPTS"]),
827 (WayUser_k, Way "k" "User way 'k'" ["$WAY_k_REAL_OPTS"]),
828 (WayUser_l, Way "l" "User way 'l'" ["$WAY_l_REAL_OPTS"]),
829 (WayUser_m, Way "m" "User way 'm'" ["$WAY_m_REAL_OPTS"]),
830 (WayUser_n, Way "n" "User way 'n'" ["$WAY_n_REAL_OPTS"]),
831 (WayUser_o, Way "o" "User way 'o'" ["$WAY_o_REAL_OPTS"]),
832 (WayUser_A, Way "A" "User way 'A'" ["$WAY_A_REAL_OPTS"]),
833 (WayUser_B, Way "B" "User way 'B'" ["$WAY_B_REAL_OPTS"])
836 -----------------------------------------------------------------------------
837 -- Programs for particular phases
839 GLOBAL_VAR(pgm_dep, findFile "mkdependHS" cGHC_MKDEPENDHS, String)
840 GLOBAL_VAR(pgm_L, findFile "unlit" cGHC_UNLIT, String)
841 GLOBAL_VAR(pgm_P, cRAWCPP, String)
842 GLOBAL_VAR(pgm_C, findFile "hsc" cGHC_HSC, String)
843 GLOBAL_VAR(pgm_c, cGCC, String)
844 GLOBAL_VAR(pgm_m, findFile "ghc-asm" cGHC_MANGLER, String)
845 GLOBAL_VAR(pgm_s, findFile "ghc-split" cGHC_SPLIT, String)
846 GLOBAL_VAR(pgm_a, cGCC, String)
847 GLOBAL_VAR(pgm_l, cGCC, String)
849 -----------------------------------------------------------------------------
850 -- Options for particular phases
852 GLOBAL_VAR(opt_dep, [], [String])
853 GLOBAL_VAR(opt_L, [], [String])
854 GLOBAL_VAR(opt_P, [], [String])
855 GLOBAL_VAR(opt_C, [], [String])
856 GLOBAL_VAR(opt_Crts, [], [String])
857 GLOBAL_VAR(opt_c, [], [String])
858 GLOBAL_VAR(opt_a, [], [String])
859 GLOBAL_VAR(opt_m, [], [String])
860 GLOBAL_VAR(opt_l, [], [String])
861 GLOBAL_VAR(opt_dll, [], [String])
863 -- we add to the options from the front, so we need to reverse the list
864 getOpts :: IORef [String] -> IO [String]
865 getOpts opts = readIORef opts >>= return . reverse
867 GLOBAL_VAR(anti_opt_C, [], [String])
869 -----------------------------------------------------------------------------
870 -- Via-C compilation stuff
872 -- flags returned are: ( all C compilations
873 -- , registerised HC compilations
877 | prefixMatch "alpha" cTARGETPLATFORM
878 = return ( ["-static"], [] )
880 | prefixMatch "hppa" cTARGETPLATFORM
881 -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
882 -- (very nice, but too bad the HP /usr/include files don't agree.)
883 = return ( ["-static", "-D_HPUX_SOURCE"], [] )
885 | prefixMatch "m68k" cTARGETPLATFORM
886 -- -fno-defer-pop : for the .hc files, we want all the pushing/
887 -- popping of args to routines to be explicit; if we let things
888 -- be deferred 'til after an STGJUMP, imminent death is certain!
890 -- -fomit-frame-pointer : *don't*
891 -- It's better to have a6 completely tied up being a frame pointer
892 -- rather than let GCC pick random things to do with it.
893 -- (If we want to steal a6, then we would try to do things
894 -- as on iX86, where we *do* steal the frame pointer [%ebp].)
895 = return ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] )
897 | prefixMatch "i386" cTARGETPLATFORM
898 -- -fno-defer-pop : basically the same game as for m68k
900 -- -fomit-frame-pointer : *must* in .hc files; because we're stealing
901 -- the fp (%ebp) for our register maps.
902 = do n_regs <- readIORef stolen_x86_regs
903 sta <- readIORef static
904 return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else "" ],
905 [ "-fno-defer-pop", "-fomit-frame-pointer",
906 "-DSTOLEN_X86_REGS="++show n_regs ]
909 | prefixMatch "mips" cTARGETPLATFORM
910 = return ( ["static"], [] )
912 | prefixMatch "powerpc" cTARGETPLATFORM || prefixMatch "rs6000" cTARGETPLATFORM
913 = return ( ["static"], ["-finhibit-size-directive"] )
918 -----------------------------------------------------------------------------
919 -- Build the Hsc command line
921 build_hsc_opts :: IO [String]
923 opt_C_ <- getOpts opt_C -- misc hsc opts
926 warn_level <- readIORef warning_opt
927 let warn_opts = case warn_level of
928 W_default -> standardWarnings
930 W_all -> minusWallOpts
934 minus_o <- readIORef opt_level
937 0 -> hsc_minusNoO_flags
938 1 -> hsc_minusO_flags
939 2 -> hsc_minusO2_flags
943 ways_ <- readIORef ways
944 let stg_massage | WayProf `elem` ways_ = "-fmassage-stg-for-profiling"
947 stg_stats <- readIORef opt_StgStats
948 let stg_stats_flag | stg_stats = "-dstg-stats"
951 let stg_opts = [ stg_massage, stg_stats_flag, "-flet-no-escape" ]
952 -- let-no-escape always on for now
955 let hi_vers = "-fhi-version="++cProjectVersionInt
956 static <- (do s <- readIORef static; if s then return "-static" else return "")
958 l <- readIORef hsc_lang
961 HscAsm -> "-olang=asm"
962 HscJava -> "-olang=java"
964 -- get hi-file suffix
965 hisuf <- readIORef hi_suf
967 -- hi-suffix for packages depends on the build tag.
969 do tag <- readIORef build_tag
972 else return (tag ++ "_hi")
974 import_dirs <- readIORef import_paths
975 package_import_dirs <- getPackageImportPath
977 let hi_map = "-himap=" ++
978 makeHiMap import_dirs hisuf
979 package_import_dirs package_hisuf
982 hi_map_sep = "-himap-sep=" ++ [split_marker]
984 scale <- readIORef scale_sizes_by
985 heap <- readIORef specific_heap_size
986 stack <- readIORef specific_stack_size
987 cmdline_rts_opts <- getOpts opt_Crts
988 let heap' = truncate (fromIntegral heap * scale) :: Integer
989 stack' = truncate (fromIntegral stack * scale) :: Integer
990 rts_opts = [ "+RTS", "-H"++show heap', "-K"++show stack' ]
991 ++ cmdline_rts_opts ++ [ "-RTS" ]
993 -- take into account -fno-* flags by removing the equivalent -f*
994 -- flag from our list.
995 anti_flags <- getOpts anti_opt_C
996 let basic_opts = opt_C_ ++ warn_opts ++ optimisation_opts ++ stg_opts
997 filtered_opts = filter (`notElem` anti_flags) basic_opts
1002 -- ToDo: C stub files
1003 ++ [ hi_vers, static, verb, lang, hi_map, hi_map_sep ]
1008 (import_dirs :: [String])
1009 (hi_suffix :: String)
1010 (package_import_dirs :: [String])
1011 (package_hi_suffix :: String)
1012 (split_marker :: Char)
1013 = foldr (add_dir hi_suffix)
1014 (foldr (add_dir package_hi_suffix) "" package_import_dirs)
1017 add_dir hisuf dir str = dir ++ "%." ++ hisuf ++ split_marker : str
1020 getOptionsFromSource
1021 :: String -- input file
1022 -> IO [String] -- options, if any
1023 getOptionsFromSource file
1024 = do h <- openFile file ReadMode
1030 () | null l -> look h
1031 | prefixMatch "#" l -> look h
1032 | prefixMatch "{-# LINE" l -> look h
1033 | Just (opts:_) <- matchRegex optionRegex l
1034 -> return (words opts)
1035 | otherwise -> return []
1037 optionRegex = mkRegex "{-#[ \t]+OPTIONS[ \t]+(.*)#-}"
1039 -----------------------------------------------------------------------------
1042 get_source_files :: [String] -> ([String],[String])
1043 get_source_files = partition (('-' /=) . head)
1045 suffixes :: [(String,Phase)]
1057 phase_input_ext Unlit = "lhs"
1058 phase_input_ext Cpp = "lpp"
1059 phase_input_ext Hsc = "cpp"
1060 phase_input_ext HCc = "hc"
1061 phase_input_ext Cc = "c"
1062 phase_input_ext Mangle = "raw_s"
1063 phase_input_ext SplitMangle = "split_s" -- not really generated
1064 phase_input_ext As = "s"
1065 phase_input_ext SplitAs = "split_s" -- not really generated
1066 phase_input_ext Ln = "o"
1068 find_phase :: String -> ([(Phase,String)], [String])
1069 -> ([(Phase,String)], [String])
1070 find_phase f (phase_srcs, unknown_srcs)
1071 = case lookup ext suffixes of
1072 Just the_phase -> ((the_phase,f):phase_srcs, unknown_srcs)
1073 Nothing -> (phase_srcs, f:unknown_srcs)
1074 where (basename,ext) = split_filename f
1077 find_phases srcs = (phase_srcs, unknown_srcs)
1078 where (phase_srcs, unknown_srcs) = foldr find_phase ([],[]) srcs
1081 -- all error messages are propagated as exceptions
1082 my_catchDyn (\dyn -> case dyn of
1083 PhaseFailed phase code -> exitWith code
1084 Interrupted -> exitWith (ExitFailure 1)
1085 _ -> do hPutStrLn stderr (show (dyn :: BarfKind))
1086 exitWith (ExitFailure 1)) $
1088 later cleanTempFiles $
1089 -- exceptions will be blocked while we clean the temporary files,
1090 -- so there shouldn't be any difficulty if we receive further
1094 -- install signal handlers
1095 main_thread <- myThreadId
1096 let sig_handler = Catch (raiseInThread main_thread
1097 (DynException (toDyn Interrupted)))
1098 installHandler sigQUIT sig_handler Nothing
1099 installHandler sigINT sig_handler Nothing
1102 writeIORef prog_name pgm
1106 -- grab any -B options from the command line first
1107 argv' <- setTopDir argv
1109 -- read the package configuration
1110 conf_file <- readIORef package_config
1111 contents <- readFile conf_file
1112 writeIORef package_details (read contents)
1114 -- find the phase to stop after (i.e. -E, -C, -c, -S flags)
1115 (flags2, stop_phase, do_linking) <- getStopAfter argv'
1117 -- process all the other arguments, and get the source files
1118 srcs <- processArgs flags2 []
1120 -- find the build tag, and re-process the build-specific options
1121 more_opts <- findBuildTag
1122 _ <- processArgs more_opts []
1125 verb <- readIORef verbose
1127 when verb (hPutStrLn stderr ("Using package config file: " ++ conf_file))
1129 if stop_phase == MkDependHS -- mkdependHS is special
1130 then do_mkdependHS flags2 srcs
1133 -- for each source file, find which phase to start at
1134 let (phase_srcs, unknown_srcs) = find_phases srcs
1136 o_file <- readIORef output_file
1137 if isJust o_file && not do_linking && length phase_srcs > 1
1138 then throwDyn MultipleSrcsOneOutput
1141 if null unknown_srcs && null phase_srcs
1142 then throwDyn NoInputFiles
1145 -- if we have unknown files, and we're not doing linking, complain
1146 -- (otherwise pass them through to the linker).
1147 if not (null unknown_srcs) && not do_linking
1148 then throwDyn (UnknownFileType (head unknown_srcs))
1151 let compileFile :: (Phase, String) -> IO String
1152 compileFile (phase, src) = do
1153 let (orig_base, _) = split_filename src
1154 if phase < Ln -- anything to do?
1155 then run_pipeline stop_phase do_linking True orig_base (phase,src)
1158 o_files <- mapM compileFile phase_srcs
1161 then do_link o_files unknown_srcs
1165 -- The following compilation pipeline algorithm is fairly hacky. A
1166 -- better way to do this would be to express the whole comilation as a
1167 -- data flow DAG, where the nodes are the intermediate files and the
1168 -- edges are the compilation phases. This framework would also work
1169 -- nicely if a haskell dependency generator was included in the
1172 -- It would also deal much more cleanly with compilation phases that
1173 -- generate multiple intermediates, (eg. hsc generates .hc, .hi, and
1174 -- possibly stub files), where some of the output files need to be
1175 -- processed further (eg. the stub files need to be compiled by the C
1178 -- A cool thing to do would then be to execute the data flow graph
1179 -- concurrently, automatically taking advantage of extra processors on
1180 -- the host machine. For example, when compiling two Haskell files
1181 -- where one depends on the other, the data flow graph would determine
1182 -- that the C compiler from the first comilation can be overlapped
1183 -- with the hsc comilation for the second file.
1186 :: Phase -- phase to end on (never Linker)
1187 -> Bool -- doing linking afterward?
1188 -> Bool -- take into account -o when generating output?
1189 -> String -- original basename (eg. Main)
1190 -> (Phase, String) -- phase to run, input file
1191 -> IO String -- return final filename
1193 run_pipeline last_phase do_linking use_ofile orig_basename (phase, input_fn)
1194 | phase > last_phase = return input_fn
1198 let (basename,ext) = split_filename input_fn
1200 split <- readIORef split_object_files
1201 mangle <- readIORef do_asm_mangling
1202 lang <- readIORef hsc_lang
1204 -- figure out what the next phase is. This is
1205 -- straightforward, apart from the fact that hsc can generate
1206 -- either C or assembler direct, and assembly mangling is
1207 -- optional, and splitting involves one extra phase and an alternate
1213 HscAsm | split -> SplitMangle
1216 HCc | mangle -> Mangle
1221 Mangle | not split -> As
1222 SplitMangle -> SplitAs
1228 -- filename extension for the output, determined by next_phase
1229 let new_ext = phase_input_ext next_phase
1231 -- Figure out what the output from this pass should be called.
1233 -- If we're keeping the output from this phase, then we just save
1234 -- it in the current directory, otherwise we generate a new temp file.
1235 keep_s <- readIORef keep_s_files
1236 keep_raw_s <- readIORef keep_raw_s_files
1237 keep_hc <- readIORef keep_hc_files
1238 let keep_this_output =
1241 Mangle | keep_raw_s -> True -- first enhancement :)
1243 HCc | keep_hc -> True
1247 (if next_phase > last_phase && not do_linking && use_ofile
1248 then do o_file <- readIORef output_file
1252 f <- odir_ify (orig_basename ++ '.':new_ext)
1255 -- .o files are always kept. .s files and .hc file may be kept.
1256 else if keep_this_output
1257 then odir_ify (orig_basename ++ '.':new_ext)
1258 else do filename <- newTempName new_ext
1259 add files_to_clean filename
1263 run_phase phase orig_basename input_fn output_fn
1265 -- sadly, ghc -E is supposed to write the file to stdout. We
1266 -- generate <file>.cpp, so we also have to cat the file here.
1267 if (next_phase > last_phase && last_phase == Cpp)
1268 then run_something "Dump pre-processed file to stdout"
1269 ("cat " ++ output_fn)
1272 run_pipeline last_phase do_linking use_ofile
1273 orig_basename (next_phase, output_fn)
1276 -- find a temporary name that doesn't already exist.
1277 newTempName :: String -> IO String
1278 newTempName extn = do
1280 tmp_dir <- readIORef tmp_prefix
1281 findTempName tmp_dir x
1282 where findTempName tmp_dir x = do
1283 let filename = tmp_dir ++ "/ghc" ++ show x ++ '.':extn
1284 b <- fileExist filename
1285 if b then findTempName tmp_dir (x+1)
1286 else return filename
1288 -------------------------------------------------------------------------------
1291 do_mkdependHS :: [String] -> [String] -> IO ()
1292 do_mkdependHS cmd_opts srcs = do
1294 let quote_include_opt o | prefixMatch "-#include" o = "'" ++ o ++ "'"
1297 mkdependHS <- readIORef pgm_dep
1298 mkdependHS_opts <- getOpts opt_dep
1299 hs_src_cpp_opts <- readIORef hs_source_cpp_opts
1301 run_something "Dependency generation"
1302 (unwords (mkdependHS :
1305 ++ ("--" : map quote_include_opt cmd_opts )
1309 -------------------------------------------------------------------------------
1312 run_phase Unlit basename input_fn output_fn
1313 = do unlit <- readIORef pgm_L
1314 unlit_flags <- getOpts opt_L
1315 run_something "Literate pre-processor"
1316 ("echo '# 1 \"" ++input_fn++"\"' > "++output_fn++" && "
1317 ++ unlit ++ ' ':input_fn ++ " - >> " ++ output_fn)
1319 -------------------------------------------------------------------------------
1322 run_phase Cpp basename input_fn output_fn
1323 = do src_opts <- getOptionsFromSource input_fn
1324 processArgs src_opts []
1326 do_cpp <- readIORef cpp_flag
1329 cpp <- readIORef pgm_P
1330 hscpp_opts <- getOpts opt_P
1331 hs_src_cpp_opts <- readIORef hs_source_cpp_opts
1333 cmdline_include_paths <- readIORef include_paths
1334 pkg_include_dirs <- getPackageIncludePath
1335 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
1336 ++ pkg_include_dirs)
1339 run_something "C pre-processor"
1341 (["echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}'", ">", output_fn, "&&",
1346 ++ [ "-x", "c", input_fn, ">>", output_fn ]
1349 run_something "Inefective C pre-processor"
1350 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}' > "
1351 ++ output_fn ++ " && cat " ++ input_fn
1352 ++ " >> " ++ output_fn)
1354 -----------------------------------------------------------------------------
1357 run_phase Hsc basename input_fn output_fn
1358 = do hsc <- readIORef pgm_C
1360 -- we add the current directory (i.e. the directory in which
1361 -- the .hs files resides) to the import path, since this is
1362 -- what gcc does, and it's probably what you want.
1363 let current_dir = getdir basename
1365 paths <- readIORef include_paths
1366 writeIORef include_paths (current_dir : paths)
1368 -- build the hsc command line
1369 hsc_opts <- build_hsc_opts
1371 doing_hi <- readIORef produceHi
1372 tmp_hi_file <- if doing_hi
1373 then do fn <- newTempName "hi"
1374 add files_to_clean fn
1378 let hi_flag = if doing_hi then "-hifile=" ++ tmp_hi_file
1381 -- deal with -Rghc-timing
1382 timing <- readIORef collect_ghc_timing
1383 stat_file <- newTempName "stat"
1384 add files_to_clean stat_file
1385 let stat_opts | timing = [ "+RTS", "-S"++stat_file, "-RTS" ]
1388 -- tmp files for foreign export stub code
1389 tmp_stub_h <- newTempName "stub_h"
1390 tmp_stub_c <- newTempName "stub_c"
1391 add files_to_clean tmp_stub_h
1392 add files_to_clean tmp_stub_c
1394 -- figure out where to put the .hi file
1395 ohi <- readIORef output_hi
1396 hisuf <- readIORef hi_suf
1397 let hi_flags = case ohi of
1398 Nothing -> [ "-hidir="++current_dir, "-hisuf="++hisuf ]
1399 Just fn -> [ "-hifile="++fn ]
1401 -- run the compiler!
1402 run_something "Haskell Compiler"
1403 (unwords (hsc : input_fn : (
1407 "-ofile="++output_fn,
1414 -- Generate -Rghc-timing info
1416 run_something "Generate timing stats"
1417 (findFile "ghc-stats" cGHC_STATS ++ ' ':stat_file)
1421 let stub_h = basename ++ "_stub.h"
1422 let stub_c = basename ++ "_stub.c"
1424 -- copy .h_stub file into current dir if present
1425 b <- fileExist tmp_stub_h
1427 run_something "Copy stub .h file"
1428 ("cp " ++ tmp_stub_h ++ ' ':stub_h)
1430 -- #include <..._stub.h> in .hc file
1431 add cmdline_hc_includes tmp_stub_h -- hack
1433 -- copy the _stub.c file into the current dir
1434 run_something "Copy stub .c file"
1436 "rm -f", stub_c, "&&",
1437 "echo \'#include \""++stub_h++"\"\' >"++stub_c, " &&",
1438 "cat", tmp_stub_c, ">> ", stub_c
1441 -- compile the _stub.c file w/ gcc
1442 run_pipeline As False{-no linking-}
1443 False{-no -o option-}
1447 add ld_inputs (basename++"_stub.o")
1450 -----------------------------------------------------------------------------
1453 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
1454 -- way too many hacks, and I can't say I've ever used it anyway.
1456 run_phase cc_phase basename input_fn output_fn
1457 | cc_phase == Cc || cc_phase == HCc
1458 = do cc <- readIORef pgm_c
1459 cc_opts <- getOpts opt_c
1460 cmdline_include_dirs <- readIORef include_paths
1461 -- ToDo: $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
1463 let hcc = cc_phase == HCc
1465 -- add package include paths even if we're just compiling
1466 -- .c files; this is the Value Add(TM) that using
1467 -- ghc instead of gcc gives you :)
1468 pkg_include_dirs <- getPackageIncludePath
1469 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
1470 ++ pkg_include_dirs)
1472 c_includes <- getPackageCIncludes
1473 cmdline_includes <- readIORef cmdline_hc_includes -- -#include options
1475 let cc_injects | hcc = unlines (map mk_include
1476 (c_includes ++ reverse cmdline_includes))
1480 '"':_{-"-} -> "#include "++h_file
1481 '<':_ -> "#include "++h_file
1482 _ -> "#include \""++h_file++"\""
1484 cc_help <- newTempName "c"
1485 add files_to_clean cc_help
1486 h <- openFile cc_help WriteMode
1487 hPutStr h cc_injects
1488 hPutStrLn h ("#include \"" ++ input_fn ++ "\"\n")
1491 ccout <- newTempName "ccout"
1492 add files_to_clean ccout
1494 mangle <- readIORef do_asm_mangling
1495 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
1499 o2 <- readIORef opt_minus_o2_for_C
1500 let opt_flag | o2 = "-O2"
1503 pkg_extra_cc_opts <- getPackageExtraCcOpts
1505 run_something "C Compiler"
1506 (unwords ([ cc, "-x", "c", cc_help, "-o", output_fn ]
1508 ++ (if cc_phase == HCc && mangle
1509 then md_regd_c_flags
1511 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
1512 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
1515 ++ pkg_extra_cc_opts
1519 -- ToDo: postprocess the output from gcc
1521 -----------------------------------------------------------------------------
1524 run_phase Mangle basename input_fn output_fn
1525 = do mangler <- readIORef pgm_m
1526 mangler_opts <- getOpts opt_m
1528 if (prefixMatch "i386" cTARGETPLATFORM)
1529 then do n_regs <- readIORef stolen_x86_regs
1530 return [ show n_regs ]
1532 run_something "Assembly Mangler"
1535 ++ [ input_fn, output_fn ]
1539 -----------------------------------------------------------------------------
1542 run_phase SplitMangle basename input_fn outputfn
1543 = do splitter <- readIORef pgm_s
1545 -- this is the prefix used for the split .s files
1546 tmp_pfx <- readIORef tmp_prefix
1548 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
1549 writeIORef split_prefix split_s_prefix
1550 add files_to_clean (split_s_prefix ++ "__*") -- d:-)
1552 -- allocate a tmp file to put the no. of split .s files in (sigh)
1553 n_files <- newTempName "n_files"
1554 add files_to_clean n_files
1556 run_something "Split Assembly File"
1563 -- save the number of split files for future references
1564 s <- readFile n_files
1565 let n = read s :: Int
1566 writeIORef n_split_files n
1568 -----------------------------------------------------------------------------
1571 run_phase As basename input_fn output_fn
1572 = do as <- readIORef pgm_a
1573 as_opts <- getOpts opt_a
1575 cmdline_include_paths <- readIORef include_paths
1576 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
1577 run_something "Assembler"
1578 (unwords (as : as_opts
1579 ++ cmdline_include_flags
1580 ++ [ "-c", input_fn, "-o", output_fn ]
1583 run_phase SplitAs basename input_fn output_fn
1584 = do as <- readIORef pgm_a
1585 as_opts <- getOpts opt_a
1587 odir_opt <- readIORef output_dir
1588 let odir | Just s <- odir_opt = s
1589 | otherwise = basename
1591 split_s_prefix <- readIORef split_prefix
1592 n <- readIORef n_split_files
1594 odir <- readIORef output_dir
1595 let real_odir = case odir of
1599 let assemble_file n = do
1600 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
1601 let output_o = newdir real_odir
1602 (basename ++ "__" ++ show n ++ ".o")
1603 real_o <- osuf_ify output_o
1604 run_something "Assembler"
1605 (unwords (as : as_opts
1606 ++ [ "-c", "-o", real_o, input_s ]
1609 mapM_ assemble_file [1..n]
1611 -----------------------------------------------------------------------------
1614 do_link :: [String] -> [String] -> IO ()
1615 do_link o_files unknown_srcs = do
1616 ln <- readIORef pgm_l
1618 o_file <- readIORef output_file
1619 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
1621 pkg_lib_paths <- getPackageLibraryPath
1622 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
1624 lib_paths <- readIORef library_paths
1625 let lib_path_opts = map ("-L"++) lib_paths
1627 pkg_libs <- getPackageLibraries
1628 let pkg_lib_opts = map ("-l"++) pkg_libs
1630 libs <- readIORef cmdline_libraries
1631 let lib_opts = map ("-l"++) (reverse libs)
1632 -- reverse because they're added in reverse order from the cmd line
1634 pkg_extra_ld_opts <- getPackageExtraLdOpts
1636 -- probably _stub.o files
1637 extra_ld_inputs <- readIORef ld_inputs
1639 -- opts from -optl-<blah>
1640 extra_ld_opts <- getOpts opt_l
1642 run_something "Linker"
1644 ([ ln, verb, "-o", output_fn ]
1650 ++ pkg_lib_path_opts
1652 ++ pkg_extra_ld_opts
1657 -----------------------------------------------------------------------------
1658 -- Running an external program
1660 run_something phase_name cmd
1662 verb <- readIORef verbose
1671 n <- readIORef dry_run
1672 if n then return () else do
1675 exit_code <- system cmd `catchAllIO`
1676 (\e -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
1678 if exit_code /= ExitSuccess
1679 then throwDyn (PhaseFailed phase_name exit_code)
1680 else do on verb (putStr "\n")
1683 -----------------------------------------------------------------------------
1687 = NoArg (IO ()) -- flag with no argument
1688 | HasArg (String -> IO ()) -- flag has an argument (maybe prefix)
1689 | SepArg (String -> IO ()) -- flag has a separate argument
1690 | Prefix (String -> IO ()) -- flag is a prefix only
1691 | OptPrefix (String -> IO ()) -- flag may be a prefix
1692 | AnySuffix (String -> IO ()) -- flag is a prefix, pass whole arg to fn
1693 | PassFlag (String -> IO ()) -- flag with no arg, pass flag to fn
1695 -- note that ordering is important in the following list: any flag which
1696 -- is a prefix flag (i.e. HasArg, Prefix, OptPrefix, AnySuffix) will override
1697 -- flags further down the list with the same prefix.
1700 [ ------- help -------------------------------------------------------
1701 ( "?" , NoArg long_usage)
1702 , ( "-help" , NoArg long_usage)
1705 ------- version ----------------------------------------------------
1706 , ( "-version" , NoArg (do hPutStrLn stderr (cProjectName
1707 ++ ", version " ++ version_str)
1708 exitWith ExitSuccess))
1709 , ( "-numeric-version", NoArg (do hPutStrLn stderr version_str
1710 exitWith ExitSuccess))
1712 ------- verbosity ----------------------------------------------------
1713 , ( "v" , NoArg (writeIORef verbose True) )
1714 , ( "n" , NoArg (writeIORef dry_run True) )
1716 ------- recompilation checker --------------------------------------
1717 , ( "recomp" , NoArg (writeIORef recomp True) )
1718 , ( "no-recomp" , NoArg (writeIORef recomp False) )
1720 ------- ways --------------------------------------------------------
1721 , ( "prof" , NoArg (addNoDups ways WayProf) )
1722 , ( "unreg" , NoArg (addNoDups ways WayUnreg) )
1723 , ( "ticky" , NoArg (addNoDups ways WayTicky) )
1724 , ( "parallel" , NoArg (addNoDups ways WayPar) )
1725 , ( "gransim" , NoArg (addNoDups ways WayGran) )
1726 , ( "smp" , NoArg (addNoDups ways WaySMP) )
1727 , ( "debug" , NoArg (addNoDups ways WayDebug) )
1730 ------- Interface files ---------------------------------------------
1731 , ( "hi" , NoArg (writeIORef produceHi True) )
1732 , ( "nohi" , NoArg (writeIORef produceHi False) )
1733 , ( "hi-diffs" , NoArg (writeIORef hi_diffs NormalHiDiffs) )
1734 , ( "no-hi-diffs" , NoArg (writeIORef hi_diffs NoHiDiffs) )
1735 , ( "hi-diffs-with-usages" , NoArg (writeIORef hi_diffs UsageHiDiffs) )
1736 , ( "keep-hi-diffs" , NoArg (writeIORef keep_hi_diffs True) )
1737 --"hi-with-*" -> hiw <- readIORef hi_with (ToDo)
1739 --------- Profiling --------------------------------------------------
1740 , ( "auto-dicts" , NoArg (add opt_C "-fauto-sccs-on-dicts") )
1741 , ( "auto-all" , NoArg (add opt_C "-fauto-sccs-on-all-toplevs") )
1742 , ( "auto" , NoArg (add opt_C "-fauto-sccs-on-exported-toplevs") )
1743 , ( "caf-all" , NoArg (add opt_C "-fauto-sccs-on-individual-cafs") )
1744 -- "ignore-sccs" doesn't work (ToDo)
1746 ------- Miscellaneous -----------------------------------------------
1747 , ( "cpp" , NoArg (writeIORef cpp_flag True) )
1748 , ( "#include" , HasArg (add cmdline_hc_includes) )
1749 , ( "no-link-chk" , NoArg (return ()) ) -- ignored for backwards compat
1751 ------- Output Redirection ------------------------------------------
1752 , ( "odir" , HasArg (writeIORef output_dir . Just) )
1753 , ( "o" , SepArg (writeIORef output_file . Just) )
1754 , ( "osuf" , HasArg (writeIORef output_suf . Just) )
1755 , ( "hisuf" , HasArg (writeIORef hi_suf) )
1756 , ( "tmpdir" , HasArg (writeIORef tmp_prefix . (++ "/")) )
1757 , ( "ohi" , HasArg (\s -> case s of
1758 "-" -> writeIORef hi_on_stdout True
1759 _ -> writeIORef output_hi (Just s)) )
1762 , ( "keep-hc-file" , AnySuffix (\_ -> writeIORef keep_hc_files True) )
1763 , ( "keep-s-file" , AnySuffix (\_ -> writeIORef keep_s_files True) )
1764 , ( "keep-raw-s-file", AnySuffix (\_ -> writeIORef keep_raw_s_files True) )
1766 , ( "split-objs" , NoArg (if can_split
1767 then do writeIORef split_object_files True
1768 add opt_C "-fglobalise-toplev-names"
1769 add opt_c "-DUSE_SPLIT_MARKERS"
1770 else hPutStrLn stderr
1771 "warning: don't know how to split \
1772 \object files on this architecture"
1775 ------- Include/Import Paths ----------------------------------------
1776 , ( "i" , OptPrefix augment_import_paths )
1777 , ( "I" , Prefix augment_include_paths )
1779 ------- Libraries ---------------------------------------------------
1780 , ( "L" , Prefix augment_library_paths )
1781 , ( "l" , Prefix (add cmdline_libraries) )
1783 ------- Packages ----------------------------------------------------
1784 , ( "package-name" , HasArg (\s -> add opt_C ("-inpackage="++s)) )
1786 , ( "package" , HasArg (addPackage) )
1787 , ( "syslib" , HasArg (addPackage) ) -- for compatibility w/ old vsns
1789 , ( "-list-packages" , NoArg (listPackages) )
1790 , ( "-add-package" , NoArg (newPackage) )
1791 , ( "-delete-package" , SepArg (deletePackage) )
1793 ------- Specific phases --------------------------------------------
1794 , ( "pgmdep" , HasArg (writeIORef pgm_dep) )
1795 , ( "pgmL" , HasArg (writeIORef pgm_L) )
1796 , ( "pgmP" , HasArg (writeIORef pgm_P) )
1797 , ( "pgmC" , HasArg (writeIORef pgm_C) )
1798 , ( "pgmc" , HasArg (writeIORef pgm_c) )
1799 , ( "pgmm" , HasArg (writeIORef pgm_m) )
1800 , ( "pgms" , HasArg (writeIORef pgm_s) )
1801 , ( "pgma" , HasArg (writeIORef pgm_a) )
1802 , ( "pgml" , HasArg (writeIORef pgm_l) )
1804 , ( "optdep" , HasArg (add opt_dep) )
1805 , ( "optL" , HasArg (add opt_L) )
1806 , ( "optP" , HasArg (add opt_P) )
1807 , ( "optCrts" , HasArg (add opt_Crts) )
1808 , ( "optC" , HasArg (add opt_C) )
1809 , ( "optc" , HasArg (add opt_c) )
1810 , ( "optm" , HasArg (add opt_m) )
1811 , ( "opta" , HasArg (add opt_a) )
1812 , ( "optl" , HasArg (add opt_l) )
1813 , ( "optdll" , HasArg (add opt_dll) )
1815 ------ HsCpp opts ---------------------------------------------------
1816 , ( "D" , Prefix (\s -> add opt_P ("-D'"++s++"'") ) )
1817 , ( "U" , Prefix (\s -> add opt_P ("-U'"++s++"'") ) )
1819 ------ Warning opts -------------------------------------------------
1820 , ( "W" , NoArg (writeIORef warning_opt W_))
1821 , ( "Wall" , NoArg (writeIORef warning_opt W_all))
1822 , ( "Wnot" , NoArg (writeIORef warning_opt W_not))
1823 , ( "w" , NoArg (writeIORef warning_opt W_not))
1825 ----- Linker --------------------------------------------------------
1826 , ( "static" , NoArg (writeIORef static True) )
1828 ------ Compiler RTS options -----------------------------------------
1829 , ( "H" , HasArg (sizeOpt specific_heap_size) )
1830 , ( "K" , HasArg (sizeOpt specific_stack_size) )
1831 , ( "Rscale-sizes" , HasArg (floatOpt scale_sizes_by) )
1832 , ( "Rghc-timing" , NoArg (writeIORef collect_ghc_timing True) )
1834 ------ Debugging ----------------------------------------------------
1835 , ( "dstg-stats" , NoArg (writeIORef opt_StgStats True) )
1837 , ( "dno-" , Prefix (\s -> add anti_opt_C ("-d"++s)) )
1838 , ( "d" , AnySuffix (add opt_C) )
1840 ------ Machine dependant (-m<blah>) stuff ---------------------------
1842 , ( "monly-2-regs", NoArg (writeIORef stolen_x86_regs 2) )
1843 , ( "monly-3-regs", NoArg (writeIORef stolen_x86_regs 3) )
1844 , ( "monly-4-regs", NoArg (writeIORef stolen_x86_regs 4) )
1846 ------ Compiler flags -----------------------------------------------
1847 , ( "O2-for-C" , NoArg (writeIORef opt_minus_o2_for_C True) )
1848 , ( "O" , OptPrefix (setOptLevel) )
1850 , ( "fglasgow-exts-no-lang", NoArg ( do add opt_C "-fglasgow-exts") )
1852 , ( "fglasgow-exts" , NoArg (do add opt_C "-fglasgow-exts"
1855 , ( "fasm" , OptPrefix (\_ -> writeIORef hsc_lang HscAsm) )
1857 , ( "fvia-C" , NoArg (writeIORef hsc_lang HscC) )
1859 , ( "fno-asm-mangling" , NoArg (writeIORef do_asm_mangling False) )
1861 , ( "fmax-simplifier-iterations",
1862 Prefix (writeIORef opt_MaxSimplifierIterations . read) )
1864 , ( "fusagesp", NoArg (do writeIORef opt_UsageSPInf True
1865 add opt_C "-fusagesp-on") )
1867 -- flags that are "active negatives"
1868 , ( "fno-implicit-prelude" , PassFlag (add opt_C) )
1869 , ( "fno-prune-tydecls" , PassFlag (add opt_C) )
1870 , ( "fno-prune-instdecls" , PassFlag (add opt_C) )
1871 , ( "fno-pre-inlining" , PassFlag (add opt_C) )
1873 -- All other "-fno-<blah>" options cancel out "-f<blah>" on the hsc cmdline
1874 , ( "fno-", Prefix (\s -> add anti_opt_C ("-f"++s)) )
1876 -- Pass all remaining "-f<blah>" options to hsc
1877 , ( "f", AnySuffix (add opt_C) )
1880 -----------------------------------------------------------------------------
1881 -- Process command-line
1883 processArgs :: [String] -> [String] -> IO [String] -- returns spare args
1884 processArgs [] spare = return (reverse spare)
1885 processArgs args@(('-':_):_) spare = do
1886 args' <- processOneArg args
1887 processArgs args' spare
1888 processArgs (arg:args) spare =
1889 processArgs args (arg:spare)
1891 processOneArg :: [String] -> IO [String]
1892 processOneArg (('-':arg):args) = do
1893 let (rest,action) = findArg arg
1899 then io >> return args
1900 else throwDyn (UnknownFlag dash_arg)
1904 then fio rest >> return args
1906 [] -> throwDyn (UnknownFlag dash_arg)
1907 (arg1:args1) -> fio arg1 >> return args1
1911 [] -> throwDyn (UnknownFlag dash_arg)
1912 (arg1:args1) -> fio arg1 >> return args1
1916 then fio rest >> return args
1917 else throwDyn (UnknownFlag dash_arg)
1919 OptPrefix fio -> fio rest >> return args
1921 AnySuffix fio -> fio ('-':arg) >> return args
1925 then throwDyn (UnknownFlag dash_arg)
1926 else fio ('-':arg) >> return args
1928 findArg :: String -> (String,OptKind)
1930 = case [ (remove_spaces rest, k) | (pat,k) <- opts,
1931 Just rest <- [my_prefix_match pat arg],
1932 is_prefix k || null rest ] of
1933 [] -> throwDyn (UnknownFlag ('-':arg))
1936 is_prefix (NoArg _) = False
1937 is_prefix (SepArg _) = False
1938 is_prefix (PassFlag _) = False
1941 -----------------------------------------------------------------------------
1942 -- convert sizes like "3.5M" into integers
1944 sizeOpt :: IORef Integer -> String -> IO ()
1946 | c == "" = writeSizeOpt ref (truncate n)
1947 | c == "K" || c == "k" = writeSizeOpt ref (truncate (n * 1000))
1948 | c == "M" || c == "m" = writeSizeOpt ref (truncate (n * 1000 * 1000))
1949 | c == "G" || c == "g" = writeSizeOpt ref (truncate (n * 1000 * 1000 * 1000))
1950 | otherwise = throwDyn (UnknownFlag str)
1951 where (m, c) = span pred str
1952 n = read m :: Double
1953 pred c = isDigit c || c == '.'
1955 writeSizeOpt :: IORef Integer -> Integer -> IO ()
1956 writeSizeOpt ref new = do
1957 current <- readIORef ref
1959 then writeIORef ref new
1962 floatOpt :: IORef Double -> String -> IO ()
1964 = writeIORef ref (read str :: Double)
1966 -----------------------------------------------------------------------------
1967 -- Finding files in the installation
1969 GLOBAL_VAR(topDir, clibdir, String)
1971 -- grab the last -B option on the command line, and
1972 -- set topDir to its value.
1973 setTopDir :: [String] -> IO [String]
1975 let (minusbs, others) = partition (prefixMatch "-B") args
1977 [] -> writeIORef topDir clibdir
1978 some -> writeIORef topDir (drop 2 (last some)))
1981 findFile name alt_path = unsafePerformIO (do
1982 top_dir <- readIORef topDir
1983 let installed_file = top_dir ++ '/':name
1984 let inplace_file = top_dir ++ '/':cCURRENT_DIR ++ '/':alt_path
1985 b <- fileExist inplace_file
1986 if b then return inplace_file
1987 else return installed_file
1990 -----------------------------------------------------------------------------
1993 my_partition :: (a -> Maybe b) -> [a] -> ([b],[a])
1994 my_partition p [] = ([],[])
1995 my_partition p (a:as)
1996 = let (bs,cs) = my_partition p as in
1998 Nothing -> (bs,a:cs)
2001 my_prefix_match :: String -> String -> Maybe String
2002 my_prefix_match [] rest = Just rest
2003 my_prefix_match (p:pat) [] = Nothing
2004 my_prefix_match (p:pat) (r:rest)
2005 | p == r = my_prefix_match pat rest
2006 | otherwise = Nothing
2008 prefixMatch :: Eq a => [a] -> [a] -> Bool
2009 prefixMatch [] str = True
2010 prefixMatch pat [] = False
2011 prefixMatch (p:ps) (s:ss) | p == s = prefixMatch ps ss
2014 postfixMatch :: String -> String -> Bool
2015 postfixMatch pat str = prefixMatch (reverse pat) (reverse str)
2017 later = flip finally
2019 on b io = if b then io >> return (error "on") else return (error "on")
2021 my_catch = flip catchAllIO
2022 my_catchDyn = flip catchDyn
2024 global :: a -> IORef a
2025 global a = unsafePerformIO (newIORef a)
2027 split_filename :: String -> (String,String)
2028 split_filename f = (reverse rev_basename, reverse rev_ext)
2029 where (rev_ext, '.':rev_basename) = span ('.' /=) (reverse f)
2031 split :: Char -> String -> [String]
2032 split c s = case rest of
2034 _:rest -> chunk : split c rest
2035 where (chunk, rest) = break (==c) s
2037 add :: IORef [a] -> a -> IO ()
2040 writeIORef var (x:xs)
2042 addNoDups :: Eq a => IORef [a] -> a -> IO ()
2043 addNoDups var x = do
2045 if x `elem` xs then return () else writeIORef var (x:xs)
2047 remove_suffix :: String -> Char -> String
2049 | null pre = reverse suf
2050 | otherwise = reverse pre
2051 where (suf,pre) = break (==c) (reverse s)
2053 drop_longest_prefix :: String -> Char -> String
2054 drop_longest_prefix s c = reverse suf
2055 where (suf,pre) = break (==c) (reverse s)
2057 take_longest_prefix :: String -> Char -> String
2058 take_longest_prefix s c = reverse pre
2059 where (suf,pre) = break (==c) (reverse s)
2061 newsuf :: String -> String -> String
2062 newsuf suf s = remove_suffix s '.' ++ suf
2064 -- getdir strips the filename off the input string, returning the directory.
2065 getdir :: String -> String
2066 getdir s = if null dir then "." else init dir
2067 where dir = take_longest_prefix s '/'
2069 newdir :: String -> String -> String
2070 newdir dir s = dir ++ '/':drop_longest_prefix s '/'
2072 remove_spaces :: String -> String
2073 remove_spaces = reverse . dropWhile isSpace . reverse . dropWhile isSpace