1 -----------------------------------------------------------------------------
4 -- (c) Simon Marlow 2000
6 -----------------------------------------------------------------------------
8 -- with path so that ghc -M can find config.h
9 #include "../includes/config.h"
11 module Main (main) where
18 #ifndef mingw32_TARGET_OS
34 #ifdef mingw32_TARGET_OS
35 foreign import "_getpid" getProcessID :: IO Int
38 #define GLOBAL_VAR(name,value,ty) \
39 name = global (value) :: IORef (ty); \
42 -----------------------------------------------------------------------------
45 -- time commands when run with -v
50 -- Win32 support: proper signal handling
51 -- make sure OPTIONS in .hs file propogate to .hc file if -C or -keep-hc-file-too
52 -- reading the package configuration file is too slow
54 -----------------------------------------------------------------------------
55 -- Differences vs. old driver:
57 -- No more "Enter your Haskell program, end with ^D (on a line of its own):"
58 -- consistency checking removed (may do this properly later)
60 -- no hi diffs (could be added later)
63 -----------------------------------------------------------------------------
64 -- non-configured things
66 cHaskell1Version = "5" -- i.e., Haskell 98
68 -----------------------------------------------------------------------------
72 hPutStr stderr "\nUsage: For basic information, try the `-help' option.\n"
76 let usage_file = "ghc-usage.txt"
77 usage_path = findFile usage_file (cGHC_DRIVER_DIR ++ '/':usage_file)
78 usage <- readFile usage_path
83 dump ('$':'$':s) = hPutStr stderr get_prog_name >> dump s
84 dump (c:s) = hPutChar stderr c >> dump s
86 version_str = cProjectVersion ++
87 ( if cProjectPatchLevel /= "0" && cProjectPatchLevel /= ""
88 then '.':cProjectPatchLevel
91 -----------------------------------------------------------------------------
95 Phase of the | Suffix saying | Flag saying | (suffix of)
96 compilation system | ``start here''| ``stop after''| output file
98 literate pre-processor | .lhs | - | -
99 C pre-processor (opt.) | - | -E | -
100 Haskell compiler | .hs | -C, -S | .hc, .s
101 C compiler (opt.) | .hc or .c | -S | .s
102 assembler | .s or .S | -c | .o
103 linker | other | - | a.out
107 = MkDependHS -- haskell dependency generation
112 | HCc -- Haskellised C (as opposed to vanilla C) compilation
113 | Mangle -- assembly mangling, now done by a separate script.
114 | SplitMangle -- after mangler if splitting
118 deriving (Eq,Ord,Enum,Ix,Show,Bounded)
120 initial_phase = Unlit
122 -----------------------------------------------------------------------------
126 = UnknownFileType String
129 | MultipleSrcsOneOutput
130 | UnknownPackage String
131 | WayCombinationNotSupported [WayName]
132 | PhaseFailed String ExitCode
138 GLOBAL_VAR(prog_name, "ghc", String)
140 get_prog_name = unsafePerformIO (readIORef prog_name) -- urk!
142 instance Show BarfKind where
144 = showString get_prog_name . showString ": " . showBarf e
146 showBarf AmbiguousPhase
147 = showString "only one of the flags -M, -E, -C, -S, -c is allowed"
148 showBarf (UnknownFileType s)
149 = showString "unknown file type, and linking not done: " . showString s
150 showBarf (UnknownFlag s)
151 = showString "unrecognised flag: " . showString s
152 showBarf MultipleSrcsOneOutput
153 = showString "can't apply -o option to multiple source files"
154 showBarf (UnknownPackage s)
155 = showString "unknown package name: " . showString s
156 showBarf (WayCombinationNotSupported ws)
157 = showString "combination not supported: "
158 . foldr1 (\a b -> a . showChar '/' . b)
159 (map (showString . wayName . lkupWay) ws)
160 showBarf (NoInputFiles)
161 = showString "no input files"
162 showBarf (OtherError str)
165 barfKindTc = mkTyCon "BarfKind"
167 instance Typeable BarfKind where
168 typeOf _ = mkAppTy barfKindTc []
170 -----------------------------------------------------------------------------
173 GLOBAL_VAR(files_to_clean, [], [String])
174 GLOBAL_VAR(keep_tmp_files, False, Bool)
176 cleanTempFiles :: IO ()
178 forget_it <- readIORef keep_tmp_files
179 unless forget_it $ do
181 fs <- readIORef files_to_clean
182 verb <- readIORef verbose
185 (do on verb (hPutStrLn stderr ("removing: " ++ f))
186 if '*' `elem` f then system ("rm -f " ++ f) >> return ()
189 (\e -> on verb (hPutStrLn stderr
190 ("warning: can't remove tmp file" ++ f)))
193 -----------------------------------------------------------------------------
194 -- Which phase to stop at
196 GLOBAL_VAR(stop_after, Ln, Phase)
198 end_phase_flag :: String -> Maybe Phase
199 end_phase_flag "-M" = Just MkDependHS
200 end_phase_flag "-E" = Just Cpp
201 end_phase_flag "-C" = Just Hsc
202 end_phase_flag "-S" = Just Mangle
203 end_phase_flag "-c" = Just As
204 end_phase_flag _ = Nothing
206 getStopAfter :: [String]
207 -> IO ( [String] -- rest of command line
208 , Phase -- stop after phase
209 , Bool -- do linking?
212 = case my_partition end_phase_flag flags of
213 ([] , rest) -> return (rest, As, True)
214 ([one], rest) -> return (rest, one, False)
215 (_ , rest) -> throwDyn AmbiguousPhase
217 -----------------------------------------------------------------------------
218 -- Global compilation flags
221 GLOBAL_VAR(cpp_flag, False, Bool)
222 hs_source_cpp_opts = global
223 [ "-D__HASKELL1__="++cHaskell1Version
224 , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
226 , "-D__CONCURRENT_HASKELL__"
229 -- Keep output from intermediate phases
230 GLOBAL_VAR(keep_hi_diffs, False, Bool)
231 GLOBAL_VAR(keep_hc_files, False, Bool)
232 GLOBAL_VAR(keep_s_files, False, Bool)
233 GLOBAL_VAR(keep_raw_s_files, False, Bool)
235 -- Compiler RTS options
236 GLOBAL_VAR(specific_heap_size, 6 * 1000 * 1000, Integer)
237 GLOBAL_VAR(specific_stack_size, 1000 * 1000, Integer)
238 GLOBAL_VAR(scale_sizes_by, 1.0, Double)
241 GLOBAL_VAR(verbose, False, Bool)
242 is_verbose = do v <- readIORef verbose; if v then return "-v" else return ""
245 GLOBAL_VAR(dry_run, False, Bool)
246 GLOBAL_VAR(recomp, True, Bool)
247 GLOBAL_VAR(tmp_prefix, cTMPDIR, String)
248 GLOBAL_VAR(stolen_x86_regs, 4, Int)
249 #if !defined(HAVE_WIN32_DLL_SUPPORT) || defined(DONT_WANT_WIN32_DLL_SUPPORT)
250 GLOBAL_VAR(static, True, Bool)
252 GLOBAL_VAR(static, False, Bool)
254 GLOBAL_VAR(collect_ghc_timing, False, Bool)
255 GLOBAL_VAR(do_asm_mangling, True, Bool)
257 -----------------------------------------------------------------------------
258 -- Splitting object files (for libraries)
260 GLOBAL_VAR(split_object_files, False, Bool)
261 GLOBAL_VAR(split_prefix, "", String)
262 GLOBAL_VAR(n_split_files, 0, Int)
265 can_split = prefixMatch "i386" cTARGETPLATFORM
266 || prefixMatch "alpha" cTARGETPLATFORM
267 || prefixMatch "hppa" cTARGETPLATFORM
268 || prefixMatch "m68k" cTARGETPLATFORM
269 || prefixMatch "mips" cTARGETPLATFORM
270 || prefixMatch "powerpc" cTARGETPLATFORM
271 || prefixMatch "rs6000" cTARGETPLATFORM
272 || prefixMatch "sparc" cTARGETPLATFORM
274 -----------------------------------------------------------------------------
275 -- Compiler output options
282 GLOBAL_VAR(hsc_lang, if cGhcWithNativeCodeGen == "YES" &&
283 (prefixMatch "i386" cTARGETPLATFORM ||
284 prefixMatch "sparc" cTARGETPLATFORM)
289 GLOBAL_VAR(output_dir, Nothing, Maybe String)
290 GLOBAL_VAR(output_suf, Nothing, Maybe String)
291 GLOBAL_VAR(output_file, Nothing, Maybe String)
292 GLOBAL_VAR(output_hi, Nothing, Maybe String)
294 GLOBAL_VAR(ld_inputs, [], [String])
296 odir_ify :: String -> IO String
298 odir_opt <- readIORef output_dir
301 Just d -> return (newdir d f)
303 osuf_ify :: String -> IO String
305 osuf_opt <- readIORef output_suf
308 Just s -> return (newsuf s f)
310 -----------------------------------------------------------------------------
313 GLOBAL_VAR(produceHi, True, Bool)
314 GLOBAL_VAR(hi_on_stdout, False, Bool)
315 GLOBAL_VAR(hi_with, "", String)
316 GLOBAL_VAR(hi_suf, "hi", String)
318 data HiDiffFlag = NormalHiDiffs | UsageHiDiffs | NoHiDiffs
319 GLOBAL_VAR(hi_diffs, NoHiDiffs, HiDiffFlag)
321 -----------------------------------------------------------------------------
322 -- Warnings & sanity checking
324 -- Warning packages that are controlled by -W and -Wall. The 'standard'
325 -- warnings that you get all the time are
327 -- -fwarn-overlapping-patterns
328 -- -fwarn-missing-methods
329 -- -fwarn-missing-fields
330 -- -fwarn-deprecations
331 -- -fwarn-duplicate-exports
333 -- these are turned off by -Wnot.
335 standardWarnings = [ "-fwarn-overlapping-patterns"
336 , "-fwarn-missing-methods"
337 , "-fwarn-missing-fields"
338 , "-fwarn-deprecations"
339 , "-fwarn-duplicate-exports"
341 minusWOpts = standardWarnings ++
342 [ "-fwarn-unused-binds"
343 , "-fwarn-unused-matches"
344 , "-fwarn-incomplete-patterns"
345 , "-fwarn-unused-imports"
347 minusWallOpts = minusWOpts ++
348 [ "-fwarn-type-defaults"
349 , "-fwarn-name-shadowing"
350 , "-fwarn-missing-signatures"
353 data WarningState = W_default | W_ | W_all | W_not
355 GLOBAL_VAR(warning_opt, W_default, WarningState)
357 -----------------------------------------------------------------------------
358 -- Compiler optimisation options
360 GLOBAL_VAR(opt_level, 0, Int)
362 setOptLevel :: String -> IO ()
363 setOptLevel "" = do { writeIORef opt_level 1; go_via_C }
364 setOptLevel "not" = writeIORef opt_level 0
365 setOptLevel [c] | isDigit c = do
366 let level = ord c - ord '0'
367 writeIORef opt_level level
368 on (level >= 1) go_via_C
369 setOptLevel s = throwDyn (UnknownFlag ("-O"++s))
372 l <- readIORef hsc_lang
373 case l of { HscAsm -> writeIORef hsc_lang HscC;
374 _other -> return () }
376 GLOBAL_VAR(opt_minus_o2_for_C, False, Bool)
378 GLOBAL_VAR(opt_MaxSimplifierIterations, 4, Int)
379 GLOBAL_VAR(opt_StgStats, False, Bool)
380 GLOBAL_VAR(opt_UsageSPInf, False, Bool) -- Off by default
382 hsc_minusO2_flags = hsc_minusO_flags -- for now
384 hsc_minusNoO_flags = do
385 iter <- readIORef opt_MaxSimplifierIterations
387 "-fignore-interface-pragmas",
388 "-fomit-interface-pragmas",
391 "-fmax-simplifier-iterations" ++ show iter,
395 hsc_minusO_flags = do
396 iter <- readIORef opt_MaxSimplifierIterations
397 usageSP <- readIORef opt_UsageSPInf
398 stgstats <- readIORef opt_StgStats
403 "-fdo-eta-reduction",
404 "-fdo-lambda-eta-expansion",
409 -- initial simplify: mk specialiser happy: minimum effort please
414 -- Don't inline anything till full laziness has bitten
415 -- In particular, inlining wrappers inhibits floating
416 -- e.g. ...(case f x of ...)...
417 -- ==> ...(case (case x of I# x# -> fw x#) of ...)...
418 -- ==> ...(case x of I# x# -> case fw x# of ...)...
419 -- and now the redex (f x) isn't floatable any more
422 -- Similarly, don't apply any rules until after full
423 -- laziness. Notably, list fusion can prevent floating.
426 -- Don't do case-of-case transformations.
427 -- This makes full laziness work better
429 "-fmax-simplifier-iterations2",
432 -- Specialisation is best done before full laziness
433 -- so that overloaded functions have all their dictionary lambdas manifest
442 -- Want to run with inline phase 1 after the specialiser to give
443 -- maximum chance for fusion to work before we inline build/augment
444 -- in phase 2. This made a difference in 'ansi' where an
445 -- overloaded function wasn't inlined till too late.
446 "-fmax-simplifier-iterations" ++ show iter,
449 -- infer usage information here in case we need it later.
450 -- (add more of these where you need them --KSW 1999-04)
451 if usageSP then "-fusagesp" else "",
455 -- Need inline-phase2 here so that build/augment get
456 -- inlined. I found that spectral/hartel/genfft lost some useful
457 -- strictness in the function sumcode' if augment is not inlined
458 -- before strictness analysis runs
461 "-fmax-simplifier-iterations2",
467 "-fmax-simplifier-iterations2",
468 -- No -finline-phase: allow all Ids to be inlined now
469 -- This gets foldr inlined before strictness analysis
478 "-fmax-simplifier-iterations" ++ show iter,
479 -- No -finline-phase: allow all Ids to be inlined now
483 -- nofib/spectral/hartel/wang doubles in speed if you
484 -- do full laziness late in the day. It only happens
485 -- after fusion and other stuff, so the early pass doesn't
486 -- catch it. For the record, the redex is
487 -- f_el22 (f_el21 r_midblock)
489 -- Leave out lambda lifting for now
490 -- "-fsimplify", -- Tidy up results of full laziness
492 -- "-fmax-simplifier-iterations2",
494 -- "-ffloat-outwards-full",
496 -- We want CSE to follow the final full-laziness pass, because it may
497 -- succeed in commoning up things floated out by full laziness.
499 -- CSE must immediately follow a simplification pass, because it relies
500 -- on the no-shadowing invariant. See comments at the top of CSE.lhs
501 -- So it must NOT follow float-inwards, which can give rise to shadowing,
502 -- even if its input doesn't have shadows. Hence putting it between
509 -- Case-liberation for -O2. This should be after
510 -- strictness analysis and the simplification which follows it.
512 -- ( ($OptLevel != 2)
514 -- : "-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 ]" ),
516 -- "-fliberate-case",
518 -- Final clean-up simplification:
521 "-fmax-simplifier-iterations" ++ show iter,
522 -- No -finline-phase: allow all Ids to be inlined now
527 -----------------------------------------------------------------------------
530 split_marker = ':' -- not configurable
532 import_paths, include_paths, library_paths :: IORef [String]
533 GLOBAL_VAR(import_paths, ["."], [String])
534 GLOBAL_VAR(include_paths, ["."], [String])
535 GLOBAL_VAR(library_paths, [], [String])
537 GLOBAL_VAR(cmdline_libraries, [], [String])
538 GLOBAL_VAR(cmdline_hc_includes, [], [String])
540 augment_import_paths :: String -> IO ()
541 augment_import_paths "" = writeIORef import_paths []
542 augment_import_paths path
543 = do paths <- readIORef import_paths
544 writeIORef import_paths (paths ++ dirs)
545 where dirs = split split_marker path
547 augment_include_paths :: String -> IO ()
548 augment_include_paths path
549 = do paths <- readIORef include_paths
550 writeIORef include_paths (paths ++ split split_marker path)
552 augment_library_paths :: String -> IO ()
553 augment_library_paths path
554 = do paths <- readIORef library_paths
555 writeIORef library_paths (paths ++ split split_marker path)
557 -----------------------------------------------------------------------------
560 GLOBAL_VAR(package_config, (findFile "package.conf" (cGHC_DRIVER_DIR++"/package.conf.inplace")), String)
562 listPackages :: IO ()
564 details <- readIORef package_details
565 hPutStr stdout (listPkgs details)
572 details <- readIORef package_details
573 hPutStr stdout "Reading package info from stdin... "
575 let new_pkg = read stuff :: (String,Package)
577 (\e -> throwDyn (OtherError "parse error in package info"))
578 hPutStrLn stdout "done."
579 if (fst new_pkg `elem` map fst details)
580 then throwDyn (OtherError ("package `" ++ fst new_pkg ++
581 "' already installed"))
583 conf_file <- readIORef package_config
584 savePackageConfig conf_file
585 maybeRestoreOldConfig conf_file $ do
586 writeNewConfig conf_file ( ++ [new_pkg])
589 deletePackage :: String -> IO ()
590 deletePackage pkg = do
592 details <- readIORef package_details
593 if (pkg `notElem` map fst details)
594 then throwDyn (OtherError ("package `" ++ pkg ++ "' not installed"))
596 conf_file <- readIORef package_config
597 savePackageConfig conf_file
598 maybeRestoreOldConfig conf_file $ do
599 writeNewConfig conf_file (filter ((/= pkg) . fst))
602 checkConfigAccess :: IO ()
603 checkConfigAccess = do
604 conf_file <- readIORef package_config
605 access <- getPermissions conf_file
606 unless (writable access)
607 (throwDyn (OtherError "you don't have permission to modify the package configuration file"))
609 maybeRestoreOldConfig :: String -> IO () -> IO ()
610 maybeRestoreOldConfig conf_file io
611 = catchAllIO io (\e -> do
612 hPutStr stdout "\nWARNING: an error was encountered while the new \n\
613 \configuration was being written. Attempting to \n\
614 \restore the old configuration... "
615 system ("cp " ++ conf_file ++ ".old " ++ conf_file)
616 hPutStrLn stdout "done."
620 writeNewConfig :: String -> ([(String,Package)] -> [(String,Package)]) -> IO ()
621 writeNewConfig conf_file fn = do
622 hPutStr stdout "Writing new package config file... "
623 old_details <- readIORef package_details
624 h <- openFile conf_file WriteMode
625 hPutStr h (dumpPackages (fn old_details))
627 hPutStrLn stdout "done."
629 savePackageConfig :: String -> IO ()
630 savePackageConfig conf_file = do
631 hPutStr stdout "Saving old package config file... "
632 -- mv rather than cp because we've already done an hGetContents
633 -- on this file so we won't be able to open it for writing
634 -- unless we move the old one out of the way...
635 system ("mv " ++ conf_file ++ " " ++ conf_file ++ ".old")
636 hPutStrLn stdout "done."
638 -- package list is maintained in dependency order
639 packages = global ["std", "rts", "gmp"] :: IORef [String]
640 -- comma in value, so can't use macro, grrr
641 {-# NOINLINE packages #-}
643 addPackage :: String -> IO ()
645 = do pkg_details <- readIORef package_details
646 case lookup package pkg_details of
647 Nothing -> throwDyn (UnknownPackage package)
649 ps <- readIORef packages
650 unless (package `elem` ps) $ do
651 mapM_ addPackage (package_deps details)
652 ps <- readIORef packages
653 writeIORef packages (package:ps)
655 getPackageImportPath :: IO [String]
656 getPackageImportPath = do
657 ps <- readIORef packages
658 ps' <- getPackageDetails ps
659 return (nub (concat (map import_dirs ps')))
661 getPackageIncludePath :: IO [String]
662 getPackageIncludePath = do
663 ps <- readIORef packages
664 ps' <- getPackageDetails ps
665 return (nub (filter (not.null) (concatMap include_dirs ps')))
667 -- includes are in reverse dependency order (i.e. rts first)
668 getPackageCIncludes :: IO [String]
669 getPackageCIncludes = do
670 ps <- readIORef packages
671 ps' <- getPackageDetails ps
672 return (reverse (nub (filter (not.null) (concatMap c_includes ps'))))
674 getPackageLibraryPath :: IO [String]
675 getPackageLibraryPath = do
676 ps <- readIORef packages
677 ps' <- getPackageDetails ps
678 return (nub (concat (map library_dirs ps')))
680 getPackageLibraries :: IO [String]
681 getPackageLibraries = do
682 ps <- readIORef packages
683 ps' <- getPackageDetails ps
684 tag <- readIORef build_tag
685 let suffix = if null tag then "" else '_':tag
686 return (concat (map libraries ps'))
688 getPackageExtraGhcOpts :: IO [String]
689 getPackageExtraGhcOpts = do
690 ps <- readIORef packages
691 ps' <- getPackageDetails ps
692 return (concatMap extra_ghc_opts ps')
694 getPackageExtraCcOpts :: IO [String]
695 getPackageExtraCcOpts = do
696 ps <- readIORef packages
697 ps' <- getPackageDetails ps
698 return (concatMap extra_cc_opts ps')
700 getPackageExtraLdOpts :: IO [String]
701 getPackageExtraLdOpts = do
702 ps <- readIORef packages
703 ps' <- getPackageDetails ps
704 return (concatMap extra_ld_opts ps')
706 getPackageDetails :: [String] -> IO [Package]
707 getPackageDetails ps = do
708 pkg_details <- readIORef package_details
709 return [ pkg | p <- ps, Just pkg <- [ lookup p pkg_details ] ]
711 GLOBAL_VAR(package_details, (error "package_details"), [(String,Package)])
713 -----------------------------------------------------------------------------
716 -- The central concept of a "way" is that all objects in a given
717 -- program must be compiled in the same "way". Certain options change
718 -- parameters of the virtual machine, eg. profiling adds an extra word
719 -- to the object header, so profiling objects cannot be linked with
720 -- non-profiling objects.
722 -- After parsing the command-line options, we determine which "way" we
723 -- are building - this might be a combination way, eg. profiling+ticky-ticky.
725 -- We then find the "build-tag" associated with this way, and this
726 -- becomes the suffix used to find .hi files and libraries used in
729 GLOBAL_VAR(build_tag, "", String)
758 GLOBAL_VAR(ways, [] ,[WayName])
760 allowed_combinations =
761 [ [WayProf,WayUnreg],
762 [WayProf,WaySMP] -- works???
765 findBuildTag :: IO [String] -- new options
767 way_names <- readIORef ways
768 case sort way_names of
769 [] -> do writeIORef build_tag ""
772 [w] -> do let details = lkupWay w
773 writeIORef build_tag (wayTag details)
774 return (wayOpts details)
776 ws -> if ws `notElem` allowed_combinations
777 then throwDyn (WayCombinationNotSupported ws)
778 else let stuff = map lkupWay ws
779 tag = concat (map wayTag stuff)
780 flags = map wayOpts stuff
782 writeIORef build_tag tag
783 return (concat flags)
786 case lookup w way_details of
787 Nothing -> error "findBuildTag"
788 Just details -> details
796 way_details :: [ (WayName, Way) ]
798 [ (WayProf, Way "p" "Profiling"
801 , "-optc-DPROFILING" ]),
803 (WayTicky, Way "t" "Ticky-ticky Profiling"
806 , "-optc-DTICKY_TICKY" ]),
808 (WayUnreg, Way "u" "Unregisterised"
810 , "-optc-DUSE_MINIINTERPRETER"
811 , "-fno-asm-mangling"
812 , "-funregisterised" ]),
814 (WayPar, Way "mp" "Parallel"
817 , "-D__PARALLEL_HASKELL__"
819 , "-package concurrent" ]),
821 (WayGran, Way "mg" "Gransim"
826 , "-package concurrent" ]),
828 (WaySMP, Way "s" "SMP"
834 (WayUser_a, Way "a" "User way 'a'" ["$WAY_a_REAL_OPTS"]),
835 (WayUser_b, Way "b" "User way 'b'" ["$WAY_b_REAL_OPTS"]),
836 (WayUser_c, Way "c" "User way 'c'" ["$WAY_c_REAL_OPTS"]),
837 (WayUser_d, Way "d" "User way 'd'" ["$WAY_d_REAL_OPTS"]),
838 (WayUser_e, Way "e" "User way 'e'" ["$WAY_e_REAL_OPTS"]),
839 (WayUser_f, Way "f" "User way 'f'" ["$WAY_f_REAL_OPTS"]),
840 (WayUser_g, Way "g" "User way 'g'" ["$WAY_g_REAL_OPTS"]),
841 (WayUser_h, Way "h" "User way 'h'" ["$WAY_h_REAL_OPTS"]),
842 (WayUser_i, Way "i" "User way 'i'" ["$WAY_i_REAL_OPTS"]),
843 (WayUser_j, Way "j" "User way 'j'" ["$WAY_j_REAL_OPTS"]),
844 (WayUser_k, Way "k" "User way 'k'" ["$WAY_k_REAL_OPTS"]),
845 (WayUser_l, Way "l" "User way 'l'" ["$WAY_l_REAL_OPTS"]),
846 (WayUser_m, Way "m" "User way 'm'" ["$WAY_m_REAL_OPTS"]),
847 (WayUser_n, Way "n" "User way 'n'" ["$WAY_n_REAL_OPTS"]),
848 (WayUser_o, Way "o" "User way 'o'" ["$WAY_o_REAL_OPTS"]),
849 (WayUser_A, Way "A" "User way 'A'" ["$WAY_A_REAL_OPTS"]),
850 (WayUser_B, Way "B" "User way 'B'" ["$WAY_B_REAL_OPTS"])
853 -----------------------------------------------------------------------------
854 -- Programs for particular phases
856 GLOBAL_VAR(pgm_dep, findFile "mkdependHS" cGHC_MKDEPENDHS, String)
857 GLOBAL_VAR(pgm_L, findFile "unlit" cGHC_UNLIT, String)
858 GLOBAL_VAR(pgm_P, cRAWCPP, String)
859 GLOBAL_VAR(pgm_C, findFile "hsc" cGHC_HSC, String)
860 GLOBAL_VAR(pgm_c, cGCC, String)
861 GLOBAL_VAR(pgm_m, findFile "ghc-asm" cGHC_MANGLER, String)
862 GLOBAL_VAR(pgm_s, findFile "ghc-split" cGHC_SPLIT, String)
863 GLOBAL_VAR(pgm_a, cGCC, String)
864 GLOBAL_VAR(pgm_l, cGCC, String)
866 -----------------------------------------------------------------------------
867 -- Options for particular phases
869 GLOBAL_VAR(opt_dep, [], [String])
870 GLOBAL_VAR(opt_L, [], [String])
871 GLOBAL_VAR(opt_P, [], [String])
872 GLOBAL_VAR(opt_C, [], [String])
873 GLOBAL_VAR(opt_Crts, [], [String])
874 GLOBAL_VAR(opt_c, [], [String])
875 GLOBAL_VAR(opt_a, [], [String])
876 GLOBAL_VAR(opt_m, [], [String])
877 GLOBAL_VAR(opt_l, [], [String])
878 GLOBAL_VAR(opt_dll, [], [String])
880 -- we add to the options from the front, so we need to reverse the list
881 getOpts :: IORef [String] -> IO [String]
882 getOpts opts = readIORef opts >>= return . reverse
884 GLOBAL_VAR(anti_opt_C, [], [String])
886 -----------------------------------------------------------------------------
887 -- Via-C compilation stuff
889 -- flags returned are: ( all C compilations
890 -- , registerised HC compilations
894 | prefixMatch "alpha" cTARGETPLATFORM
895 = return ( ["-static"], [] )
897 | prefixMatch "hppa" cTARGETPLATFORM
898 -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
899 -- (very nice, but too bad the HP /usr/include files don't agree.)
900 = return ( ["-static", "-D_HPUX_SOURCE"], [] )
902 | prefixMatch "m68k" cTARGETPLATFORM
903 -- -fno-defer-pop : for the .hc files, we want all the pushing/
904 -- popping of args to routines to be explicit; if we let things
905 -- be deferred 'til after an STGJUMP, imminent death is certain!
907 -- -fomit-frame-pointer : *don't*
908 -- It's better to have a6 completely tied up being a frame pointer
909 -- rather than let GCC pick random things to do with it.
910 -- (If we want to steal a6, then we would try to do things
911 -- as on iX86, where we *do* steal the frame pointer [%ebp].)
912 = return ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] )
914 | prefixMatch "i386" cTARGETPLATFORM
915 -- -fno-defer-pop : basically the same game as for m68k
917 -- -fomit-frame-pointer : *must* in .hc files; because we're stealing
918 -- the fp (%ebp) for our register maps.
919 = do n_regs <- readIORef stolen_x86_regs
920 sta <- readIORef static
921 return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else "" ],
922 [ "-fno-defer-pop", "-fomit-frame-pointer",
923 "-DSTOLEN_X86_REGS="++show n_regs ]
926 | prefixMatch "mips" cTARGETPLATFORM
927 = return ( ["static"], [] )
929 | prefixMatch "powerpc" cTARGETPLATFORM || prefixMatch "rs6000" cTARGETPLATFORM
930 = return ( ["static"], ["-finhibit-size-directive"] )
935 -----------------------------------------------------------------------------
936 -- Build the Hsc command line
938 build_hsc_opts :: IO [String]
940 opt_C_ <- getOpts opt_C -- misc hsc opts
943 warn_level <- readIORef warning_opt
944 let warn_opts = case warn_level of
945 W_default -> standardWarnings
947 W_all -> minusWallOpts
951 minus_o <- readIORef opt_level
954 0 -> hsc_minusNoO_flags
955 1 -> hsc_minusO_flags
956 2 -> hsc_minusO2_flags
960 ways_ <- readIORef ways
961 let stg_massage | WayProf `elem` ways_ = "-fmassage-stg-for-profiling"
964 stg_stats <- readIORef opt_StgStats
965 let stg_stats_flag | stg_stats = "-dstg-stats"
968 let stg_opts = [ stg_massage, stg_stats_flag, "-flet-no-escape" ]
969 -- let-no-escape always on for now
972 let hi_vers = "-fhi-version="++cProjectVersionInt
973 static <- (do s <- readIORef static; if s then return "-static" else return "")
975 l <- readIORef hsc_lang
978 HscAsm -> "-olang=asm"
979 HscJava -> "-olang=java"
981 -- get hi-file suffix
982 hisuf <- readIORef hi_suf
984 -- hi-suffix for packages depends on the build tag.
986 do tag <- readIORef build_tag
989 else return (tag ++ "_hi")
991 import_dirs <- readIORef import_paths
992 package_import_dirs <- getPackageImportPath
994 let hi_map = "-himap=" ++
995 makeHiMap import_dirs hisuf
996 package_import_dirs package_hisuf
999 hi_map_sep = "-himap-sep=" ++ [split_marker]
1001 scale <- readIORef scale_sizes_by
1002 heap <- readIORef specific_heap_size
1003 stack <- readIORef specific_stack_size
1004 cmdline_rts_opts <- getOpts opt_Crts
1005 let heap' = truncate (fromIntegral heap * scale) :: Integer
1006 stack' = truncate (fromIntegral stack * scale) :: Integer
1007 rts_opts = [ "+RTS", "-H"++show heap', "-K"++show stack' ]
1008 ++ cmdline_rts_opts ++ [ "-RTS" ]
1010 -- take into account -fno-* flags by removing the equivalent -f*
1011 -- flag from our list.
1012 anti_flags <- getOpts anti_opt_C
1013 let basic_opts = opt_C_ ++ warn_opts ++ optimisation_opts ++ stg_opts
1014 filtered_opts = filter (`notElem` anti_flags) basic_opts
1019 -- ToDo: C stub files
1020 ++ [ hi_vers, static, verb, lang, hi_map, hi_map_sep ]
1025 (import_dirs :: [String])
1026 (hi_suffix :: String)
1027 (package_import_dirs :: [String])
1028 (package_hi_suffix :: String)
1029 (split_marker :: Char)
1030 = foldr (add_dir hi_suffix)
1031 (foldr (add_dir package_hi_suffix) "" package_import_dirs)
1034 add_dir hisuf dir str = dir ++ "%." ++ hisuf ++ split_marker : str
1037 getOptionsFromSource
1038 :: String -- input file
1039 -> IO [String] -- options, if any
1040 getOptionsFromSource file
1041 = do h <- openFile file ReadMode
1047 () | null l -> look h
1048 | prefixMatch "#" l -> look h
1049 | prefixMatch "{-# LINE" l -> look h
1050 | Just (opts:_) <- matchRegex optionRegex l
1051 -> return (words opts)
1052 | otherwise -> return []
1054 optionRegex = mkRegex "{-#[ \t]+OPTIONS[ \t]+(.*)#-}"
1056 -----------------------------------------------------------------------------
1059 get_source_files :: [String] -> ([String],[String])
1060 get_source_files = partition (('-' /=) . head)
1062 suffixes :: [(String,Phase)]
1074 phase_input_ext Unlit = "lhs"
1075 phase_input_ext Cpp = "lpp"
1076 phase_input_ext Hsc = "cpp"
1077 phase_input_ext HCc = "hc"
1078 phase_input_ext Cc = "c"
1079 phase_input_ext Mangle = "raw_s"
1080 phase_input_ext SplitMangle = "split_s" -- not really generated
1081 phase_input_ext As = "s"
1082 phase_input_ext SplitAs = "split_s" -- not really generated
1083 phase_input_ext Ln = "o"
1085 find_phase :: String -> ([(Phase,String)], [String])
1086 -> ([(Phase,String)], [String])
1087 find_phase f (phase_srcs, unknown_srcs)
1088 = case lookup ext suffixes of
1089 Just the_phase -> ((the_phase,f):phase_srcs, unknown_srcs)
1090 Nothing -> (phase_srcs, f:unknown_srcs)
1091 where (basename,ext) = split_filename f
1094 find_phases srcs = (phase_srcs, unknown_srcs)
1095 where (phase_srcs, unknown_srcs) = foldr find_phase ([],[]) srcs
1098 -- all error messages are propagated as exceptions
1099 my_catchDyn (\dyn -> case dyn of
1100 PhaseFailed phase code -> exitWith code
1101 Interrupted -> exitWith (ExitFailure 1)
1102 _ -> do hPutStrLn stderr (show (dyn :: BarfKind))
1103 exitWith (ExitFailure 1)) $
1105 later cleanTempFiles $
1106 -- exceptions will be blocked while we clean the temporary files,
1107 -- so there shouldn't be any difficulty if we receive further
1111 -- install signal handlers
1112 main_thread <- myThreadId
1114 #ifndef mingw32_TARGET_OS
1115 let sig_handler = Catch (raiseInThread main_thread
1116 (DynException (toDyn Interrupted)))
1117 installHandler sigQUIT sig_handler Nothing
1118 installHandler sigINT sig_handler Nothing
1122 writeIORef prog_name pgm
1126 -- grab any -B options from the command line first
1127 argv' <- setTopDir argv
1129 -- read the package configuration
1130 conf_file <- readIORef package_config
1131 contents <- readFile conf_file
1132 writeIORef package_details (read contents)
1134 -- find the phase to stop after (i.e. -E, -C, -c, -S flags)
1135 (flags2, stop_phase, do_linking) <- getStopAfter argv'
1137 -- process all the other arguments, and get the source files
1138 srcs <- processArgs flags2 []
1140 -- find the build tag, and re-process the build-specific options
1141 more_opts <- findBuildTag
1142 _ <- processArgs more_opts []
1145 verb <- readIORef verbose
1147 when verb (hPutStrLn stderr ("Using package config file: " ++ conf_file))
1149 if stop_phase == MkDependHS -- mkdependHS is special
1150 then do_mkdependHS flags2 srcs
1153 -- for each source file, find which phase to start at
1154 let (phase_srcs, unknown_srcs) = find_phases srcs
1156 o_file <- readIORef output_file
1157 if isJust o_file && not do_linking && length phase_srcs > 1
1158 then throwDyn MultipleSrcsOneOutput
1161 if null unknown_srcs && null phase_srcs
1162 then throwDyn NoInputFiles
1165 -- if we have unknown files, and we're not doing linking, complain
1166 -- (otherwise pass them through to the linker).
1167 if not (null unknown_srcs) && not do_linking
1168 then throwDyn (UnknownFileType (head unknown_srcs))
1171 let compileFile :: (Phase, String) -> IO String
1172 compileFile (phase, src) = do
1173 let (orig_base, _) = split_filename src
1174 if phase < Ln -- anything to do?
1175 then run_pipeline stop_phase do_linking True orig_base (phase,src)
1178 o_files <- mapM compileFile phase_srcs
1181 do_link o_files unknown_srcs
1184 -- The following compilation pipeline algorithm is fairly hacky. A
1185 -- better way to do this would be to express the whole comilation as a
1186 -- data flow DAG, where the nodes are the intermediate files and the
1187 -- edges are the compilation phases. This framework would also work
1188 -- nicely if a haskell dependency generator was included in the
1191 -- It would also deal much more cleanly with compilation phases that
1192 -- generate multiple intermediates, (eg. hsc generates .hc, .hi, and
1193 -- possibly stub files), where some of the output files need to be
1194 -- processed further (eg. the stub files need to be compiled by the C
1197 -- A cool thing to do would then be to execute the data flow graph
1198 -- concurrently, automatically taking advantage of extra processors on
1199 -- the host machine. For example, when compiling two Haskell files
1200 -- where one depends on the other, the data flow graph would determine
1201 -- that the C compiler from the first comilation can be overlapped
1202 -- with the hsc comilation for the second file.
1205 :: Phase -- phase to end on (never Linker)
1206 -> Bool -- doing linking afterward?
1207 -> Bool -- take into account -o when generating output?
1208 -> String -- original basename (eg. Main)
1209 -> (Phase, String) -- phase to run, input file
1210 -> IO String -- return final filename
1212 run_pipeline last_phase do_linking use_ofile orig_basename (phase, input_fn)
1213 | phase > last_phase = return input_fn
1217 let (basename,ext) = split_filename input_fn
1219 split <- readIORef split_object_files
1220 mangle <- readIORef do_asm_mangling
1221 lang <- readIORef hsc_lang
1223 -- figure out what the next phase is. This is
1224 -- straightforward, apart from the fact that hsc can generate
1225 -- either C or assembler direct, and assembly mangling is
1226 -- optional, and splitting involves one extra phase and an alternate
1232 HscAsm | split -> SplitMangle
1235 HCc | mangle -> Mangle
1240 Mangle | not split -> As
1241 SplitMangle -> SplitAs
1247 -- filename extension for the output, determined by next_phase
1248 let new_ext = phase_input_ext next_phase
1250 -- Figure out what the output from this pass should be called.
1252 -- If we're keeping the output from this phase, then we just save
1253 -- it in the current directory, otherwise we generate a new temp file.
1254 keep_s <- readIORef keep_s_files
1255 keep_raw_s <- readIORef keep_raw_s_files
1256 keep_hc <- readIORef keep_hc_files
1257 let keep_this_output =
1260 Mangle | keep_raw_s -> True -- first enhancement :)
1262 HCc | keep_hc -> True
1266 (if next_phase > last_phase && not do_linking && use_ofile
1267 then do o_file <- readIORef output_file
1271 f <- odir_ify (orig_basename ++ '.':new_ext)
1274 -- .o files are always kept. .s files and .hc file may be kept.
1275 else if keep_this_output
1276 then odir_ify (orig_basename ++ '.':new_ext)
1277 else do filename <- newTempName new_ext
1278 add files_to_clean filename
1282 run_phase phase orig_basename input_fn output_fn
1284 -- sadly, ghc -E is supposed to write the file to stdout. We
1285 -- generate <file>.cpp, so we also have to cat the file here.
1286 when (next_phase > last_phase && last_phase == Cpp) $
1287 run_something "Dump pre-processed file to stdout"
1288 ("cat " ++ output_fn)
1290 run_pipeline last_phase do_linking use_ofile
1291 orig_basename (next_phase, output_fn)
1294 -- find a temporary name that doesn't already exist.
1295 newTempName :: String -> IO String
1296 newTempName extn = do
1298 tmp_dir <- readIORef tmp_prefix
1299 findTempName tmp_dir x
1300 where findTempName tmp_dir x = do
1301 let filename = tmp_dir ++ "/ghc" ++ show x ++ '.':extn
1302 b <- doesFileExist filename
1303 if b then findTempName tmp_dir (x+1)
1304 else return filename
1306 -------------------------------------------------------------------------------
1309 do_mkdependHS :: [String] -> [String] -> IO ()
1310 do_mkdependHS cmd_opts srcs = do
1312 let quote_include_opt o | prefixMatch "-#include" o = "'" ++ o ++ "'"
1315 mkdependHS <- readIORef pgm_dep
1316 mkdependHS_opts <- getOpts opt_dep
1317 hs_src_cpp_opts <- readIORef hs_source_cpp_opts
1319 run_something "Dependency generation"
1320 (unwords (mkdependHS :
1323 ++ ("--" : map quote_include_opt cmd_opts )
1327 -------------------------------------------------------------------------------
1330 run_phase Unlit basename input_fn output_fn
1331 = do unlit <- readIORef pgm_L
1332 unlit_flags <- getOpts opt_L
1333 run_something "Literate pre-processor"
1334 ("echo '# 1 \"" ++input_fn++"\"' > "++output_fn++" && "
1335 ++ unlit ++ ' ':input_fn ++ " - >> " ++ output_fn)
1337 -------------------------------------------------------------------------------
1340 run_phase Cpp basename input_fn output_fn
1341 = do src_opts <- getOptionsFromSource input_fn
1342 processArgs src_opts []
1344 do_cpp <- readIORef cpp_flag
1347 cpp <- readIORef pgm_P
1348 hscpp_opts <- getOpts opt_P
1349 hs_src_cpp_opts <- readIORef hs_source_cpp_opts
1351 cmdline_include_paths <- readIORef include_paths
1352 pkg_include_dirs <- getPackageIncludePath
1353 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
1354 ++ pkg_include_dirs)
1357 run_something "C pre-processor"
1359 (["echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}'", ">", output_fn, "&&",
1364 ++ [ "-x", "c", input_fn, ">>", output_fn ]
1367 run_something "Inefective C pre-processor"
1368 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}' > "
1369 ++ output_fn ++ " && cat " ++ input_fn
1370 ++ " >> " ++ output_fn)
1372 -----------------------------------------------------------------------------
1375 run_phase Hsc basename input_fn output_fn
1376 = do hsc <- readIORef pgm_C
1378 -- we add the current directory (i.e. the directory in which
1379 -- the .hs files resides) to the import path, since this is
1380 -- what gcc does, and it's probably what you want.
1381 let current_dir = getdir basename
1383 paths <- readIORef include_paths
1384 writeIORef include_paths (current_dir : paths)
1386 -- build the hsc command line
1387 hsc_opts <- build_hsc_opts
1389 doing_hi <- readIORef produceHi
1390 tmp_hi_file <- if doing_hi
1391 then do fn <- newTempName "hi"
1392 add files_to_clean fn
1396 let hi_flag = if doing_hi then "-hifile=" ++ tmp_hi_file
1399 -- deal with -Rghc-timing
1400 timing <- readIORef collect_ghc_timing
1401 stat_file <- newTempName "stat"
1402 add files_to_clean stat_file
1403 let stat_opts | timing = [ "+RTS", "-S"++stat_file, "-RTS" ]
1406 -- tmp files for foreign export stub code
1407 tmp_stub_h <- newTempName "stub_h"
1408 tmp_stub_c <- newTempName "stub_c"
1409 add files_to_clean tmp_stub_h
1410 add files_to_clean tmp_stub_c
1412 -- figure out where to put the .hi file
1413 ohi <- readIORef output_hi
1414 hisuf <- readIORef hi_suf
1415 let hi_flags = case ohi of
1416 Nothing -> [ "-hidir="++current_dir, "-hisuf="++hisuf ]
1417 Just fn -> [ "-hifile="++fn ]
1419 -- run the compiler!
1420 run_something "Haskell Compiler"
1421 (unwords (hsc : input_fn : (
1425 "-ofile="++output_fn,
1432 -- Generate -Rghc-timing info
1434 run_something "Generate timing stats"
1435 (findFile "ghc-stats" cGHC_STATS ++ ' ':stat_file)
1439 let stub_h = basename ++ "_stub.h"
1440 let stub_c = basename ++ "_stub.c"
1442 -- copy .h_stub file into current dir if present
1443 b <- doesFileExist tmp_stub_h
1445 run_something "Copy stub .h file"
1446 ("cp " ++ tmp_stub_h ++ ' ':stub_h)
1448 -- #include <..._stub.h> in .hc file
1449 add cmdline_hc_includes tmp_stub_h -- hack
1451 -- copy the _stub.c file into the current dir
1452 run_something "Copy stub .c file"
1454 "rm -f", stub_c, "&&",
1455 "echo \'#include \""++stub_h++"\"\' >"++stub_c, " &&",
1456 "cat", tmp_stub_c, ">> ", stub_c
1459 -- compile the _stub.c file w/ gcc
1460 run_pipeline As False{-no linking-}
1461 False{-no -o option-}
1465 add ld_inputs (basename++"_stub.o")
1468 -----------------------------------------------------------------------------
1471 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
1472 -- way too many hacks, and I can't say I've ever used it anyway.
1474 run_phase cc_phase basename input_fn output_fn
1475 | cc_phase == Cc || cc_phase == HCc
1476 = do cc <- readIORef pgm_c
1477 cc_opts <- (getOpts opt_c)
1478 cmdline_include_dirs <- readIORef include_paths
1480 let hcc = cc_phase == HCc
1482 -- add package include paths even if we're just compiling
1483 -- .c files; this is the Value Add(TM) that using
1484 -- ghc instead of gcc gives you :)
1485 pkg_include_dirs <- getPackageIncludePath
1486 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
1487 ++ pkg_include_dirs)
1489 c_includes <- getPackageCIncludes
1490 cmdline_includes <- readIORef cmdline_hc_includes -- -#include options
1492 let cc_injects | hcc = unlines (map mk_include
1493 (c_includes ++ reverse cmdline_includes))
1497 '"':_{-"-} -> "#include "++h_file
1498 '<':_ -> "#include "++h_file
1499 _ -> "#include \""++h_file++"\""
1501 cc_help <- newTempName "c"
1502 add files_to_clean cc_help
1503 h <- openFile cc_help WriteMode
1504 hPutStr h cc_injects
1505 hPutStrLn h ("#include \"" ++ input_fn ++ "\"\n")
1508 ccout <- newTempName "ccout"
1509 add files_to_clean ccout
1511 mangle <- readIORef do_asm_mangling
1512 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
1516 o2 <- readIORef opt_minus_o2_for_C
1517 let opt_flag | o2 = "-O2"
1520 pkg_extra_cc_opts <- getPackageExtraCcOpts
1522 run_something "C Compiler"
1523 (unwords ([ cc, "-x", "c", cc_help, "-o", output_fn ]
1525 ++ (if cc_phase == HCc && mangle
1526 then md_regd_c_flags
1528 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
1529 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
1531 #ifdef mingw32_TARGET_OS
1535 ++ pkg_extra_cc_opts
1539 -- ToDo: postprocess the output from gcc
1541 -----------------------------------------------------------------------------
1544 run_phase Mangle basename input_fn output_fn
1545 = do mangler <- readIORef pgm_m
1546 mangler_opts <- getOpts opt_m
1548 if (prefixMatch "i386" cTARGETPLATFORM)
1549 then do n_regs <- readIORef stolen_x86_regs
1550 return [ show n_regs ]
1552 run_something "Assembly Mangler"
1555 ++ [ input_fn, output_fn ]
1559 -----------------------------------------------------------------------------
1562 run_phase SplitMangle basename input_fn outputfn
1563 = do splitter <- readIORef pgm_s
1565 -- this is the prefix used for the split .s files
1566 tmp_pfx <- readIORef tmp_prefix
1568 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
1569 writeIORef split_prefix split_s_prefix
1570 add files_to_clean (split_s_prefix ++ "__*") -- d:-)
1572 -- allocate a tmp file to put the no. of split .s files in (sigh)
1573 n_files <- newTempName "n_files"
1574 add files_to_clean n_files
1576 run_something "Split Assembly File"
1583 -- save the number of split files for future references
1584 s <- readFile n_files
1585 let n = read s :: Int
1586 writeIORef n_split_files n
1588 -----------------------------------------------------------------------------
1591 run_phase As basename input_fn output_fn
1592 = do as <- readIORef pgm_a
1593 as_opts <- getOpts opt_a
1595 cmdline_include_paths <- readIORef include_paths
1596 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
1597 run_something "Assembler"
1598 (unwords (as : as_opts
1599 ++ cmdline_include_flags
1600 ++ [ "-c", input_fn, "-o", output_fn ]
1603 run_phase SplitAs basename input_fn output_fn
1604 = do as <- readIORef pgm_a
1605 as_opts <- getOpts opt_a
1607 odir_opt <- readIORef output_dir
1608 let odir | Just s <- odir_opt = s
1609 | otherwise = basename
1611 split_s_prefix <- readIORef split_prefix
1612 n <- readIORef n_split_files
1614 odir <- readIORef output_dir
1615 let real_odir = case odir of
1619 let assemble_file n = do
1620 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
1621 let output_o = newdir real_odir
1622 (basename ++ "__" ++ show n ++ ".o")
1623 real_o <- osuf_ify output_o
1624 run_something "Assembler"
1625 (unwords (as : as_opts
1626 ++ [ "-c", "-o", real_o, input_s ]
1629 mapM_ assemble_file [1..n]
1631 -----------------------------------------------------------------------------
1634 do_link :: [String] -> [String] -> IO ()
1635 do_link o_files unknown_srcs = do
1636 ln <- readIORef pgm_l
1638 o_file <- readIORef output_file
1639 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
1641 pkg_lib_paths <- getPackageLibraryPath
1642 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
1644 lib_paths <- readIORef library_paths
1645 let lib_path_opts = map ("-L"++) lib_paths
1647 pkg_libs <- getPackageLibraries
1648 let pkg_lib_opts = map ("-l"++) pkg_libs
1650 libs <- readIORef cmdline_libraries
1651 let lib_opts = map ("-l"++) (reverse libs)
1652 -- reverse because they're added in reverse order from the cmd line
1654 pkg_extra_ld_opts <- getPackageExtraLdOpts
1656 -- probably _stub.o files
1657 extra_ld_inputs <- readIORef ld_inputs
1659 -- opts from -optl-<blah>
1660 extra_ld_opts <- getOpts opt_l
1662 run_something "Linker"
1664 ([ ln, verb, "-o", output_fn ]
1670 ++ pkg_lib_path_opts
1672 ++ pkg_extra_ld_opts
1677 -----------------------------------------------------------------------------
1678 -- Running an external program
1680 run_something phase_name cmd
1682 verb <- readIORef verbose
1689 n <- readIORef dry_run
1693 exit_code <- system ("sh -c \"" ++ cmd ++ "\"") `catchAllIO`
1694 (\e -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
1696 if exit_code /= ExitSuccess
1697 then throwDyn (PhaseFailed phase_name exit_code)
1698 else do on verb (putStr "\n")
1701 -----------------------------------------------------------------------------
1705 = NoArg (IO ()) -- flag with no argument
1706 | HasArg (String -> IO ()) -- flag has an argument (maybe prefix)
1707 | SepArg (String -> IO ()) -- flag has a separate argument
1708 | Prefix (String -> IO ()) -- flag is a prefix only
1709 | OptPrefix (String -> IO ()) -- flag may be a prefix
1710 | AnySuffix (String -> IO ()) -- flag is a prefix, pass whole arg to fn
1711 | PassFlag (String -> IO ()) -- flag with no arg, pass flag to fn
1713 -- note that ordering is important in the following list: any flag which
1714 -- is a prefix flag (i.e. HasArg, Prefix, OptPrefix, AnySuffix) will override
1715 -- flags further down the list with the same prefix.
1718 [ ------- help -------------------------------------------------------
1719 ( "?" , NoArg long_usage)
1720 , ( "-help" , NoArg long_usage)
1723 ------- version ----------------------------------------------------
1724 , ( "-version" , NoArg (do hPutStrLn stderr (cProjectName
1725 ++ ", version " ++ version_str)
1726 exitWith ExitSuccess))
1727 , ( "-numeric-version", NoArg (do hPutStrLn stderr version_str
1728 exitWith ExitSuccess))
1730 ------- verbosity ----------------------------------------------------
1731 , ( "v" , NoArg (writeIORef verbose True) )
1732 , ( "n" , NoArg (writeIORef dry_run True) )
1734 ------- recompilation checker --------------------------------------
1735 , ( "recomp" , NoArg (writeIORef recomp True) )
1736 , ( "no-recomp" , NoArg (writeIORef recomp False) )
1738 ------- ways --------------------------------------------------------
1739 , ( "prof" , NoArg (addNoDups ways WayProf) )
1740 , ( "unreg" , NoArg (addNoDups ways WayUnreg) )
1741 , ( "ticky" , NoArg (addNoDups ways WayTicky) )
1742 , ( "parallel" , NoArg (addNoDups ways WayPar) )
1743 , ( "gransim" , NoArg (addNoDups ways WayGran) )
1744 , ( "smp" , NoArg (addNoDups ways WaySMP) )
1745 , ( "debug" , NoArg (addNoDups ways WayDebug) )
1748 ------- Interface files ---------------------------------------------
1749 , ( "hi" , NoArg (writeIORef produceHi True) )
1750 , ( "nohi" , NoArg (writeIORef produceHi False) )
1751 , ( "hi-diffs" , NoArg (writeIORef hi_diffs NormalHiDiffs) )
1752 , ( "no-hi-diffs" , NoArg (writeIORef hi_diffs NoHiDiffs) )
1753 , ( "hi-diffs-with-usages" , NoArg (writeIORef hi_diffs UsageHiDiffs) )
1754 , ( "keep-hi-diffs" , NoArg (writeIORef keep_hi_diffs True) )
1755 --"hi-with-*" -> hiw <- readIORef hi_with (ToDo)
1757 --------- Profiling --------------------------------------------------
1758 , ( "auto-dicts" , NoArg (add opt_C "-fauto-sccs-on-dicts") )
1759 , ( "auto-all" , NoArg (add opt_C "-fauto-sccs-on-all-toplevs") )
1760 , ( "auto" , NoArg (add opt_C "-fauto-sccs-on-exported-toplevs") )
1761 , ( "caf-all" , NoArg (add opt_C "-fauto-sccs-on-individual-cafs") )
1762 -- "ignore-sccs" doesn't work (ToDo)
1764 ------- Miscellaneous -----------------------------------------------
1765 , ( "cpp" , NoArg (writeIORef cpp_flag True) )
1766 , ( "#include" , HasArg (add cmdline_hc_includes) )
1767 , ( "no-link-chk" , NoArg (return ()) ) -- ignored for backwards compat
1769 ------- Output Redirection ------------------------------------------
1770 , ( "odir" , HasArg (writeIORef output_dir . Just) )
1771 , ( "o" , SepArg (writeIORef output_file . Just) )
1772 , ( "osuf" , HasArg (writeIORef output_suf . Just) )
1773 , ( "hisuf" , HasArg (writeIORef hi_suf) )
1774 , ( "tmpdir" , HasArg (writeIORef tmp_prefix . (++ "/")) )
1775 , ( "ohi" , HasArg (\s -> case s of
1776 "-" -> writeIORef hi_on_stdout True
1777 _ -> writeIORef output_hi (Just s)) )
1780 , ( "keep-hc-file" , AnySuffix (\_ -> writeIORef keep_hc_files True) )
1781 , ( "keep-s-file" , AnySuffix (\_ -> writeIORef keep_s_files True) )
1782 , ( "keep-raw-s-file", AnySuffix (\_ -> writeIORef keep_raw_s_files True) )
1783 , ( "keep-tmp-files" , AnySuffix (\_ -> writeIORef keep_tmp_files True) )
1785 , ( "split-objs" , NoArg (if can_split
1786 then do writeIORef split_object_files True
1787 add opt_C "-fglobalise-toplev-names"
1788 add opt_c "-DUSE_SPLIT_MARKERS"
1789 else hPutStrLn stderr
1790 "warning: don't know how to split \
1791 \object files on this architecture"
1794 ------- Include/Import Paths ----------------------------------------
1795 , ( "i" , OptPrefix augment_import_paths )
1796 , ( "I" , Prefix augment_include_paths )
1798 ------- Libraries ---------------------------------------------------
1799 , ( "L" , Prefix augment_library_paths )
1800 , ( "l" , Prefix (add cmdline_libraries) )
1802 ------- Packages ----------------------------------------------------
1803 , ( "package-name" , HasArg (\s -> add opt_C ("-inpackage="++s)) )
1805 , ( "package" , HasArg (addPackage) )
1806 , ( "syslib" , HasArg (addPackage) ) -- for compatibility w/ old vsns
1808 , ( "-list-packages" , NoArg (listPackages) )
1809 , ( "-add-package" , NoArg (newPackage) )
1810 , ( "-delete-package" , SepArg (deletePackage) )
1812 ------- Specific phases --------------------------------------------
1813 , ( "pgmdep" , HasArg (writeIORef pgm_dep) )
1814 , ( "pgmL" , HasArg (writeIORef pgm_L) )
1815 , ( "pgmP" , HasArg (writeIORef pgm_P) )
1816 , ( "pgmC" , HasArg (writeIORef pgm_C) )
1817 , ( "pgmc" , HasArg (writeIORef pgm_c) )
1818 , ( "pgmm" , HasArg (writeIORef pgm_m) )
1819 , ( "pgms" , HasArg (writeIORef pgm_s) )
1820 , ( "pgma" , HasArg (writeIORef pgm_a) )
1821 , ( "pgml" , HasArg (writeIORef pgm_l) )
1823 , ( "optdep" , HasArg (add opt_dep) )
1824 , ( "optL" , HasArg (add opt_L) )
1825 , ( "optP" , HasArg (add opt_P) )
1826 , ( "optCrts" , HasArg (add opt_Crts) )
1827 , ( "optC" , HasArg (add opt_C) )
1828 , ( "optc" , HasArg (add opt_c) )
1829 , ( "optm" , HasArg (add opt_m) )
1830 , ( "opta" , HasArg (add opt_a) )
1831 , ( "optl" , HasArg (add opt_l) )
1832 , ( "optdll" , HasArg (add opt_dll) )
1834 ------ HsCpp opts ---------------------------------------------------
1835 , ( "D" , Prefix (\s -> add opt_P ("-D'"++s++"'") ) )
1836 , ( "U" , Prefix (\s -> add opt_P ("-U'"++s++"'") ) )
1838 ------ Warning opts -------------------------------------------------
1839 , ( "W" , NoArg (writeIORef warning_opt W_))
1840 , ( "Wall" , NoArg (writeIORef warning_opt W_all))
1841 , ( "Wnot" , NoArg (writeIORef warning_opt W_not))
1842 , ( "w" , NoArg (writeIORef warning_opt W_not))
1844 ----- Linker --------------------------------------------------------
1845 , ( "static" , NoArg (writeIORef static True) )
1847 ------ Compiler RTS options -----------------------------------------
1848 , ( "H" , HasArg (sizeOpt specific_heap_size) )
1849 , ( "K" , HasArg (sizeOpt specific_stack_size) )
1850 , ( "Rscale-sizes" , HasArg (floatOpt scale_sizes_by) )
1851 , ( "Rghc-timing" , NoArg (writeIORef collect_ghc_timing True) )
1853 ------ Debugging ----------------------------------------------------
1854 , ( "dstg-stats" , NoArg (writeIORef opt_StgStats True) )
1856 , ( "dno-" , Prefix (\s -> add anti_opt_C ("-d"++s)) )
1857 , ( "d" , AnySuffix (add opt_C) )
1859 ------ Machine dependant (-m<blah>) stuff ---------------------------
1861 , ( "monly-2-regs", NoArg (writeIORef stolen_x86_regs 2) )
1862 , ( "monly-3-regs", NoArg (writeIORef stolen_x86_regs 3) )
1863 , ( "monly-4-regs", NoArg (writeIORef stolen_x86_regs 4) )
1865 ------ Compiler flags -----------------------------------------------
1866 , ( "O2-for-C" , NoArg (writeIORef opt_minus_o2_for_C True) )
1867 , ( "O" , OptPrefix (setOptLevel) )
1869 , ( "fglasgow-exts-no-lang", NoArg ( do add opt_C "-fglasgow-exts") )
1871 , ( "fglasgow-exts" , NoArg (do add opt_C "-fglasgow-exts"
1874 , ( "fasm" , OptPrefix (\_ -> writeIORef hsc_lang HscAsm) )
1876 , ( "fvia-c" , NoArg (writeIORef hsc_lang HscC) )
1877 , ( "fvia-C" , NoArg (writeIORef hsc_lang HscC) )
1879 , ( "fno-asm-mangling" , NoArg (writeIORef do_asm_mangling False) )
1881 , ( "fmax-simplifier-iterations",
1882 Prefix (writeIORef opt_MaxSimplifierIterations . read) )
1884 , ( "fusagesp" , NoArg (do writeIORef opt_UsageSPInf True
1885 add opt_C "-fusagesp-on") )
1887 , ( "fstrictfp" , NoArg (do add opt_C "-fstrictfp"
1888 add opt_c "-ffloat-store"))
1890 -- flags that are "active negatives"
1891 , ( "fno-implicit-prelude" , PassFlag (add opt_C) )
1892 , ( "fno-prune-tydecls" , PassFlag (add opt_C) )
1893 , ( "fno-prune-instdecls" , PassFlag (add opt_C) )
1894 , ( "fno-pre-inlining" , PassFlag (add opt_C) )
1896 -- All other "-fno-<blah>" options cancel out "-f<blah>" on the hsc cmdline
1897 , ( "fno-", Prefix (\s -> add anti_opt_C ("-f"++s)) )
1899 -- Pass all remaining "-f<blah>" options to hsc
1900 , ( "f", AnySuffix (add opt_C) )
1903 -----------------------------------------------------------------------------
1904 -- Process command-line
1906 processArgs :: [String] -> [String] -> IO [String] -- returns spare args
1907 processArgs [] spare = return (reverse spare)
1908 processArgs args@(('-':_):_) spare = do
1909 args' <- processOneArg args
1910 processArgs args' spare
1911 processArgs (arg:args) spare =
1912 processArgs args (arg:spare)
1914 processOneArg :: [String] -> IO [String]
1915 processOneArg (('-':arg):args) = do
1916 let (rest,action) = findArg arg
1922 then io >> return args
1923 else throwDyn (UnknownFlag dash_arg)
1927 then fio rest >> return args
1929 [] -> throwDyn (UnknownFlag dash_arg)
1930 (arg1:args1) -> fio arg1 >> return args1
1934 [] -> throwDyn (UnknownFlag dash_arg)
1935 (arg1:args1) -> fio arg1 >> return args1
1939 then fio rest >> return args
1940 else throwDyn (UnknownFlag dash_arg)
1942 OptPrefix fio -> fio rest >> return args
1944 AnySuffix fio -> fio ('-':arg) >> return args
1948 then throwDyn (UnknownFlag dash_arg)
1949 else fio ('-':arg) >> return args
1951 findArg :: String -> (String,OptKind)
1953 = case [ (remove_spaces rest, k) | (pat,k) <- opts,
1954 Just rest <- [my_prefix_match pat arg],
1955 is_prefix k || null rest ] of
1956 [] -> throwDyn (UnknownFlag ('-':arg))
1959 is_prefix (NoArg _) = False
1960 is_prefix (SepArg _) = False
1961 is_prefix (PassFlag _) = False
1964 -----------------------------------------------------------------------------
1965 -- convert sizes like "3.5M" into integers
1967 sizeOpt :: IORef Integer -> String -> IO ()
1969 | c == "" = writeSizeOpt ref (truncate n)
1970 | c == "K" || c == "k" = writeSizeOpt ref (truncate (n * 1000))
1971 | c == "M" || c == "m" = writeSizeOpt ref (truncate (n * 1000 * 1000))
1972 | c == "G" || c == "g" = writeSizeOpt ref (truncate (n * 1000 * 1000 * 1000))
1973 | otherwise = throwDyn (UnknownFlag str)
1974 where (m, c) = span pred str
1975 n = read m :: Double
1976 pred c = isDigit c || c == '.'
1978 writeSizeOpt :: IORef Integer -> Integer -> IO ()
1979 writeSizeOpt ref new = do
1980 current <- readIORef ref
1981 when (new > current) $
1984 floatOpt :: IORef Double -> String -> IO ()
1986 = writeIORef ref (read str :: Double)
1988 -----------------------------------------------------------------------------
1989 -- Finding files in the installation
1991 GLOBAL_VAR(topDir, clibdir, String)
1993 -- grab the last -B option on the command line, and
1994 -- set topDir to its value.
1995 setTopDir :: [String] -> IO [String]
1997 let (minusbs, others) = partition (prefixMatch "-B") args
1999 [] -> writeIORef topDir clibdir
2000 some -> writeIORef topDir (drop 2 (last some)))
2003 findFile name alt_path = unsafePerformIO (do
2004 top_dir <- readIORef topDir
2005 let installed_file = top_dir ++ '/':name
2006 let inplace_file = top_dir ++ '/':cCURRENT_DIR ++ '/':alt_path
2007 b <- doesFileExist inplace_file
2008 if b then return inplace_file
2009 else return installed_file
2012 -----------------------------------------------------------------------------
2015 my_partition :: (a -> Maybe b) -> [a] -> ([b],[a])
2016 my_partition p [] = ([],[])
2017 my_partition p (a:as)
2018 = let (bs,cs) = my_partition p as in
2020 Nothing -> (bs,a:cs)
2023 my_prefix_match :: String -> String -> Maybe String
2024 my_prefix_match [] rest = Just rest
2025 my_prefix_match (p:pat) [] = Nothing
2026 my_prefix_match (p:pat) (r:rest)
2027 | p == r = my_prefix_match pat rest
2028 | otherwise = Nothing
2030 prefixMatch :: Eq a => [a] -> [a] -> Bool
2031 prefixMatch [] str = True
2032 prefixMatch pat [] = False
2033 prefixMatch (p:ps) (s:ss) | p == s = prefixMatch ps ss
2036 postfixMatch :: String -> String -> Bool
2037 postfixMatch pat str = prefixMatch (reverse pat) (reverse str)
2039 later = flip finally
2041 on b io = if b then io >> return (error "on") else return (error "on")
2043 my_catch = flip catchAllIO
2044 my_catchDyn = flip catchDyn
2046 global :: a -> IORef a
2047 global a = unsafePerformIO (newIORef a)
2049 split_filename :: String -> (String,String)
2050 split_filename f = (reverse (stripDot rev_basename), reverse rev_ext)
2051 where (rev_ext, rev_basename) = span ('.' /=) (reverse f)
2052 stripDot ('.':xs) = xs
2055 split :: Char -> String -> [String]
2056 split c s = case rest of
2058 _:rest -> chunk : split c rest
2059 where (chunk, rest) = break (==c) s
2061 add :: IORef [a] -> a -> IO ()
2064 writeIORef var (x:xs)
2066 addNoDups :: Eq a => IORef [a] -> a -> IO ()
2067 addNoDups var x = do
2069 unless (x `elem` xs) $ writeIORef var (x:xs)
2071 remove_suffix :: String -> Char -> String
2073 | null pre = reverse suf
2074 | otherwise = reverse pre
2075 where (suf,pre) = break (==c) (reverse s)
2077 drop_longest_prefix :: String -> Char -> String
2078 drop_longest_prefix s c = reverse suf
2079 where (suf,pre) = break (==c) (reverse s)
2081 take_longest_prefix :: String -> Char -> String
2082 take_longest_prefix s c = reverse pre
2083 where (suf,pre) = break (==c) (reverse s)
2085 newsuf :: String -> String -> String
2086 newsuf suf s = remove_suffix s '.' ++ suf
2088 -- getdir strips the filename off the input string, returning the directory.
2089 getdir :: String -> String
2090 getdir s = if null dir then "." else init dir
2091 where dir = take_longest_prefix s '/'
2093 newdir :: String -> String -> String
2094 newdir dir s = dir ++ '/':drop_longest_prefix s '/'
2096 remove_spaces :: String -> String
2097 remove_spaces = reverse . dropWhile isSpace . reverse . dropWhile isSpace