1 {-# OPTIONS -W -fno-warn-incomplete-patterns #-}
2 -----------------------------------------------------------------------------
3 -- $Id: Main.hs,v 1.67 2000/10/11 10:21:10 rrt Exp $
7 -- (c) Simon Marlow 2000
9 -----------------------------------------------------------------------------
11 -- with path so that ghc -M can find config.h
12 #include "../includes/config.h"
14 module Main (main) where
22 #ifndef mingw32_TARGET_OS
37 #ifdef mingw32_TARGET_OS
38 foreign import "_getpid" getProcessID :: IO Int
41 #define GLOBAL_VAR(name,value,ty) \
42 name = global (value) :: IORef (ty); \
45 -----------------------------------------------------------------------------
48 -- certain options in OPTIONS pragmas are persistent through subsequent compilations.
49 -- new mkdependHS doesn't support all the options that the old one did (-X et al.)
50 -- time commands when run with -v
55 -- Win32 support: proper signal handling
56 -- make sure OPTIONS in .hs file propogate to .hc file if -C or -keep-hc-file-too
57 -- reading the package configuration file is too slow
59 -----------------------------------------------------------------------------
60 -- Differences vs. old driver:
62 -- No more "Enter your Haskell program, end with ^D (on a line of its own):"
63 -- consistency checking removed (may do this properly later)
65 -- no hi diffs (could be added later)
68 -----------------------------------------------------------------------------
69 -- non-configured things
71 cHaskell1Version = "5" -- i.e., Haskell 98
73 -----------------------------------------------------------------------------
76 short_usage = "Usage: For basic information, try the `--help' option."
79 let usage_file = "ghc-usage.txt"
80 usage_path = findFile usage_file (cGHC_DRIVER_DIR ++ '/':usage_file)
81 usage <- readFile usage_path
86 dump ('$':'$':s) = hPutStr stderr get_prog_name >> dump s
87 dump (c:s) = hPutChar stderr c >> dump s
89 version_str = cProjectVersion
91 -----------------------------------------------------------------------------
94 -- certain flags can be specified on a per-file basis, in an OPTIONS
95 -- pragma at the beginning of the source file. This means that when
96 -- compiling mulitple files, we have to restore the global option
97 -- settings before compiling a new file.
99 -- The DriverState record contains the per-file-mutable state.
101 data DriverState = DriverState {
103 -- are we runing cpp on this file?
107 specific_heap_size :: Integer,
108 specific_stack_size :: Integer,
111 stolen_x86_regs :: Int,
112 excess_precision :: Bool,
113 warning_opt :: WarningState,
114 cmdline_hc_includes :: [String],
116 -- options for a particular phase
117 anti_opt_C :: [String],
122 opt_Crts :: [String],
130 initDriverState = DriverState {
132 specific_heap_size = 6 * 1000 * 1000,
133 specific_stack_size = 1000 * 1000,
135 excess_precision = False,
136 warning_opt = W_default,
137 cmdline_hc_includes = [],
151 GLOBAL_VAR(driver_state, initDriverState, DriverState)
153 readState :: (DriverState -> a) -> IO a
154 readState f = readIORef driver_state >>= return . f
156 updateState :: (DriverState -> DriverState) -> IO ()
157 updateState f = readIORef driver_state >>= writeIORef driver_state . f
159 addAntiOpt_C a = updateState (\s -> s{anti_opt_C = a : anti_opt_C s})
160 addOpt_dep a = updateState (\s -> s{opt_dep = a : opt_dep s})
161 addOpt_L a = updateState (\s -> s{opt_L = a : opt_L s})
162 addOpt_P a = updateState (\s -> s{opt_P = a : opt_P s})
163 addOpt_C a = updateState (\s -> s{opt_C = a : opt_C s})
164 addOpt_Crts a = updateState (\s -> s{opt_Crts = a : opt_Crts s})
165 addOpt_c a = updateState (\s -> s{opt_c = a : opt_c s})
166 addOpt_a a = updateState (\s -> s{opt_a = a : opt_a s})
167 addOpt_m a = updateState (\s -> s{opt_m = a : opt_m s})
168 addOpt_l a = updateState (\s -> s{opt_l = a : opt_l s})
169 addOpt_dll a = updateState (\s -> s{opt_dll = a : opt_dll s})
171 addCmdlineHCInclude a =
172 updateState (\s -> s{cmdline_hc_includes = a : cmdline_hc_includes s})
174 -- we add to the options from the front, so we need to reverse the list
175 getOpts :: (DriverState -> [a]) -> IO [a]
176 getOpts opts = readState opts >>= return . reverse
178 newHeapSize :: Integer -> IO ()
179 newHeapSize new = updateState
180 (\s -> let current = specific_heap_size s in
181 s{ specific_heap_size = if new > current then new else current })
183 newStackSize :: Integer -> IO ()
184 newStackSize new = updateState
185 (\s -> let current = specific_stack_size s in
186 s{ specific_stack_size = if new > current then new else current })
188 -----------------------------------------------------------------------------
192 Phase of the | Suffix saying | Flag saying | (suffix of)
193 compilation system | ``start here''| ``stop after''| output file
195 literate pre-processor | .lhs | - | -
196 C pre-processor (opt.) | - | -E | -
197 Haskell compiler | .hs | -C, -S | .hc, .s
198 C compiler (opt.) | .hc or .c | -S | .s
199 assembler | .s or .S | -c | .o
200 linker | other | - | a.out
204 = MkDependHS -- haskell dependency generation
209 | HCc -- Haskellised C (as opposed to vanilla C) compilation
210 | Mangle -- assembly mangling, now done by a separate script.
211 | SplitMangle -- after mangler if splitting
217 -----------------------------------------------------------------------------
221 = PhaseFailed String ExitCode
223 | UsageError String -- prints the short usage msg after the error
224 | OtherError String -- just prints the error message
227 GLOBAL_VAR(prog_name, "ghc", String)
229 get_prog_name = unsafePerformIO (readIORef prog_name) -- urk!
231 instance Show BarfKind where
233 = showString get_prog_name . showString ": " . showBarf e
235 showBarf (UsageError str) = showString str . showChar '\n' . showString short_usage
236 showBarf (OtherError str) = showString str
237 showBarf (PhaseFailed phase code) =
238 showString phase . showString " failed, code = " . shows code
239 showBarf (Interrupted) = showString "interrupted"
241 unknownFlagErr f = throwDyn (UsageError ("unrecognised flag: " ++ f))
243 barfKindTc = mkTyCon "BarfKind"
244 instance Typeable BarfKind where
245 typeOf _ = mkAppTy barfKindTc []
247 -----------------------------------------------------------------------------
250 GLOBAL_VAR(files_to_clean, [], [String])
251 GLOBAL_VAR(keep_tmp_files, False, Bool)
253 cleanTempFiles :: IO ()
255 forget_it <- readIORef keep_tmp_files
256 unless forget_it $ do
258 fs <- readIORef files_to_clean
259 verb <- readIORef verbose
262 (do when verb (hPutStrLn stderr ("removing: " ++ f))
263 if '*' `elem` f then system ("rm -f " ++ f) >> return ()
266 (\_ -> when verb (hPutStrLn stderr
267 ("warning: can't remove tmp file" ++ f)))
270 -----------------------------------------------------------------------------
271 -- Global compilation flags
274 hs_source_cpp_opts = global
275 [ "-D__HASKELL1__="++cHaskell1Version
276 , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
278 , "-D__CONCURRENT_HASKELL__"
282 GLOBAL_VAR(verbose, False, Bool)
283 is_verbose = do v <- readIORef verbose; if v then return "-v" else return ""
285 -- Keep output from intermediate phases
286 GLOBAL_VAR(keep_hi_diffs, False, Bool)
287 GLOBAL_VAR(keep_hc_files, False, Bool)
288 GLOBAL_VAR(keep_s_files, False, Bool)
289 GLOBAL_VAR(keep_raw_s_files, False, Bool)
292 GLOBAL_VAR(scale_sizes_by, 1.0, Double)
293 GLOBAL_VAR(dry_run, False, Bool)
294 GLOBAL_VAR(recomp, True, Bool)
295 GLOBAL_VAR(tmpdir, cDEFAULT_TMPDIR, String)
296 #if !defined(HAVE_WIN32_DLL_SUPPORT) || defined(DONT_WANT_WIN32_DLL_SUPPORT)
297 GLOBAL_VAR(static, True, Bool)
299 GLOBAL_VAR(static, False, Bool)
301 GLOBAL_VAR(collect_ghc_timing, False, Bool)
302 GLOBAL_VAR(do_asm_mangling, True, Bool)
304 -----------------------------------------------------------------------------
305 -- Splitting object files (for libraries)
307 GLOBAL_VAR(split_object_files, False, Bool)
308 GLOBAL_VAR(split_prefix, "", String)
309 GLOBAL_VAR(n_split_files, 0, Int)
312 can_split = prefixMatch "i386" cTARGETPLATFORM
313 || prefixMatch "alpha" cTARGETPLATFORM
314 || prefixMatch "hppa" cTARGETPLATFORM
315 || prefixMatch "m68k" cTARGETPLATFORM
316 || prefixMatch "mips" cTARGETPLATFORM
317 || prefixMatch "powerpc" cTARGETPLATFORM
318 || prefixMatch "rs6000" cTARGETPLATFORM
319 || prefixMatch "sparc" cTARGETPLATFORM
321 -----------------------------------------------------------------------------
322 -- Compiler output options
330 GLOBAL_VAR(hsc_lang, if cGhcWithNativeCodeGen == "YES" &&
331 (prefixMatch "i386" cTARGETPLATFORM ||
332 prefixMatch "sparc" cTARGETPLATFORM)
337 GLOBAL_VAR(output_dir, Nothing, Maybe String)
338 GLOBAL_VAR(output_suf, Nothing, Maybe String)
339 GLOBAL_VAR(output_file, Nothing, Maybe String)
340 GLOBAL_VAR(output_hi, Nothing, Maybe String)
342 GLOBAL_VAR(ld_inputs, [], [String])
344 odir_ify :: String -> IO String
346 odir_opt <- readIORef output_dir
349 Just d -> return (newdir d f)
351 osuf_ify :: String -> IO String
353 osuf_opt <- readIORef output_suf
356 Just s -> return (newsuf s f)
358 -----------------------------------------------------------------------------
361 GLOBAL_VAR(produceHi, True, Bool)
362 GLOBAL_VAR(hi_on_stdout, False, Bool)
363 GLOBAL_VAR(hi_with, "", String)
364 GLOBAL_VAR(hi_suf, "hi", String)
366 data HiDiffFlag = NormalHiDiffs | UsageHiDiffs | NoHiDiffs
367 GLOBAL_VAR(hi_diffs, NoHiDiffs, HiDiffFlag)
369 -----------------------------------------------------------------------------
370 -- Warnings & sanity checking
372 -- Warning packages that are controlled by -W and -Wall. The 'standard'
373 -- warnings that you get all the time are
375 -- -fwarn-overlapping-patterns
376 -- -fwarn-missing-methods
377 -- -fwarn-missing-fields
378 -- -fwarn-deprecations
379 -- -fwarn-duplicate-exports
381 -- these are turned off by -Wnot.
383 standardWarnings = [ "-fwarn-overlapping-patterns"
384 , "-fwarn-missing-methods"
385 , "-fwarn-missing-fields"
386 , "-fwarn-deprecations"
387 , "-fwarn-duplicate-exports"
389 minusWOpts = standardWarnings ++
390 [ "-fwarn-unused-binds"
391 , "-fwarn-unused-matches"
392 , "-fwarn-incomplete-patterns"
393 , "-fwarn-unused-imports"
395 minusWallOpts = minusWOpts ++
396 [ "-fwarn-type-defaults"
397 , "-fwarn-name-shadowing"
398 , "-fwarn-missing-signatures"
399 , "-fwarn-hi-shadowing"
402 data WarningState = W_default | W_ | W_all | W_not
404 -----------------------------------------------------------------------------
405 -- Compiler optimisation options
407 GLOBAL_VAR(opt_level, 0, Int)
409 setOptLevel :: String -> IO ()
410 setOptLevel "" = do { writeIORef opt_level 1; go_via_C }
411 setOptLevel "not" = writeIORef opt_level 0
412 setOptLevel [c] | isDigit c = do
413 let level = ord c - ord '0'
414 writeIORef opt_level level
415 when (level >= 1) go_via_C
416 setOptLevel s = unknownFlagErr ("-O"++s)
419 l <- readIORef hsc_lang
420 case l of { HscAsm -> writeIORef hsc_lang HscC;
421 _other -> return () }
423 GLOBAL_VAR(opt_minus_o2_for_C, False, Bool)
425 GLOBAL_VAR(opt_MaxSimplifierIterations, 4, Int)
426 GLOBAL_VAR(opt_StgStats, False, Bool)
427 GLOBAL_VAR(opt_UsageSPInf, False, Bool) -- Off by default
429 hsc_minusO2_flags = hsc_minusO_flags -- for now
431 hsc_minusNoO_flags = do
432 iter <- readIORef opt_MaxSimplifierIterations
434 "-fignore-interface-pragmas",
435 "-fomit-interface-pragmas",
438 "-fmax-simplifier-iterations" ++ show iter,
442 hsc_minusO_flags = do
443 iter <- readIORef opt_MaxSimplifierIterations
444 usageSP <- readIORef opt_UsageSPInf
445 stgstats <- readIORef opt_StgStats
450 "-fdo-eta-reduction",
451 "-fdo-lambda-eta-expansion",
456 -- initial simplify: mk specialiser happy: minimum effort please
461 -- Don't inline anything till full laziness has bitten
462 -- In particular, inlining wrappers inhibits floating
463 -- e.g. ...(case f x of ...)...
464 -- ==> ...(case (case x of I# x# -> fw x#) of ...)...
465 -- ==> ...(case x of I# x# -> case fw x# of ...)...
466 -- and now the redex (f x) isn't floatable any more
469 -- Similarly, don't apply any rules until after full
470 -- laziness. Notably, list fusion can prevent floating.
473 -- Don't do case-of-case transformations.
474 -- This makes full laziness work better
476 "-fmax-simplifier-iterations2",
479 -- Specialisation is best done before full laziness
480 -- so that overloaded functions have all their dictionary lambdas manifest
489 -- Want to run with inline phase 1 after the specialiser to give
490 -- maximum chance for fusion to work before we inline build/augment
491 -- in phase 2. This made a difference in 'ansi' where an
492 -- overloaded function wasn't inlined till too late.
493 "-fmax-simplifier-iterations" ++ show iter,
496 -- infer usage information here in case we need it later.
497 -- (add more of these where you need them --KSW 1999-04)
498 if usageSP then "-fusagesp" else "",
502 -- Need inline-phase2 here so that build/augment get
503 -- inlined. I found that spectral/hartel/genfft lost some useful
504 -- strictness in the function sumcode' if augment is not inlined
505 -- before strictness analysis runs
508 "-fmax-simplifier-iterations2",
513 "-fmax-simplifier-iterations2",
514 -- No -finline-phase: allow all Ids to be inlined now
515 -- This gets foldr inlined before strictness analysis
525 "-fmax-simplifier-iterations" ++ show iter,
526 -- No -finline-phase: allow all Ids to be inlined now
530 -- nofib/spectral/hartel/wang doubles in speed if you
531 -- do full laziness late in the day. It only happens
532 -- after fusion and other stuff, so the early pass doesn't
533 -- catch it. For the record, the redex is
534 -- f_el22 (f_el21 r_midblock)
536 -- Leave out lambda lifting for now
537 -- "-fsimplify", -- Tidy up results of full laziness
539 -- "-fmax-simplifier-iterations2",
541 -- "-ffloat-outwards-full",
543 -- We want CSE to follow the final full-laziness pass, because it may
544 -- succeed in commoning up things floated out by full laziness.
546 -- CSE must immediately follow a simplification pass, because it relies
547 -- on the no-shadowing invariant. See comments at the top of CSE.lhs
548 -- So it must NOT follow float-inwards, which can give rise to shadowing,
549 -- even if its input doesn't have shadows. Hence putting it between
556 -- Case-liberation for -O2. This should be after
557 -- strictness analysis and the simplification which follows it.
559 -- ( ($OptLevel != 2)
561 -- : "-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 ]" ),
563 -- "-fliberate-case",
565 -- Final clean-up simplification:
568 "-fmax-simplifier-iterations" ++ show iter,
569 -- No -finline-phase: allow all Ids to be inlined now
574 -----------------------------------------------------------------------------
577 split_marker = ':' -- not configurable (ToDo)
579 import_paths, include_paths, library_paths :: IORef [String]
580 GLOBAL_VAR(import_paths, ["."], [String])
581 GLOBAL_VAR(include_paths, ["."], [String])
582 GLOBAL_VAR(library_paths, [], [String])
584 GLOBAL_VAR(cmdline_libraries, [], [String])
586 addToDirList :: IORef [String] -> String -> IO ()
587 addToDirList ref path
588 = do paths <- readIORef ref
589 writeIORef ref (paths ++ split split_marker path)
591 -----------------------------------------------------------------------------
594 GLOBAL_VAR(package_config, (findFile "package.conf" (cGHC_DRIVER_DIR++"/package.conf.inplace")), String)
596 listPackages :: IO ()
598 details <- readIORef package_details
599 hPutStr stdout (listPkgs details)
606 details <- readIORef package_details
607 hPutStr stdout "Reading package info from stdin... "
609 let new_pkg = read stuff :: Package
611 (\_ -> throwDyn (OtherError "parse error in package info"))
612 hPutStrLn stdout "done."
613 if (name new_pkg `elem` map name details)
614 then throwDyn (OtherError ("package `" ++ name new_pkg ++
615 "' already installed"))
617 conf_file <- readIORef package_config
618 savePackageConfig conf_file
619 maybeRestoreOldConfig conf_file $ do
620 writeNewConfig conf_file ( ++ [new_pkg])
623 deletePackage :: String -> IO ()
624 deletePackage pkg = do
626 details <- readIORef package_details
627 if (pkg `notElem` map name details)
628 then throwDyn (OtherError ("package `" ++ pkg ++ "' not installed"))
630 conf_file <- readIORef package_config
631 savePackageConfig conf_file
632 maybeRestoreOldConfig conf_file $ do
633 writeNewConfig conf_file (filter ((/= pkg) . name))
636 checkConfigAccess :: IO ()
637 checkConfigAccess = do
638 conf_file <- readIORef package_config
639 access <- getPermissions conf_file
640 unless (writable access)
641 (throwDyn (OtherError "you don't have permission to modify the package configuration file"))
643 maybeRestoreOldConfig :: String -> IO () -> IO ()
644 maybeRestoreOldConfig conf_file io
645 = catchAllIO io (\e -> do
646 hPutStr stdout "\nWARNING: an error was encountered while the new \n\
647 \configuration was being written. Attempting to \n\
648 \restore the old configuration... "
649 system ("cp " ++ conf_file ++ ".old " ++ conf_file)
650 hPutStrLn stdout "done."
654 writeNewConfig :: String -> ([Package] -> [Package]) -> IO ()
655 writeNewConfig conf_file fn = do
656 hPutStr stdout "Writing new package config file... "
657 old_details <- readIORef package_details
658 h <- openFile conf_file WriteMode
659 hPutStr h (dumpPackages (fn old_details))
661 hPutStrLn stdout "done."
663 savePackageConfig :: String -> IO ()
664 savePackageConfig conf_file = do
665 hPutStr stdout "Saving old package config file... "
666 -- mv rather than cp because we've already done an hGetContents
667 -- on this file so we won't be able to open it for writing
668 -- unless we move the old one out of the way...
669 system ("mv " ++ conf_file ++ " " ++ conf_file ++ ".old")
670 hPutStrLn stdout "done."
672 -- package list is maintained in dependency order
673 packages = global ["std", "rts", "gmp"] :: IORef [String]
674 -- comma in value, so can't use macro, grrr
675 {-# NOINLINE packages #-}
677 addPackage :: String -> IO ()
679 = do pkg_details <- readIORef package_details
680 case lookupPkg package pkg_details of
681 Nothing -> throwDyn (OtherError ("unknown package name: " ++ package))
683 ps <- readIORef packages
684 unless (package `elem` ps) $ do
685 mapM_ addPackage (package_deps details)
686 ps <- readIORef packages
687 writeIORef packages (package:ps)
689 getPackageImportPath :: IO [String]
690 getPackageImportPath = do
691 ps <- readIORef packages
692 ps' <- getPackageDetails ps
693 return (nub (concat (map import_dirs ps')))
695 getPackageIncludePath :: IO [String]
696 getPackageIncludePath = do
697 ps <- readIORef packages
698 ps' <- getPackageDetails ps
699 return (nub (filter (not.null) (concatMap include_dirs ps')))
701 -- includes are in reverse dependency order (i.e. rts first)
702 getPackageCIncludes :: IO [String]
703 getPackageCIncludes = do
704 ps <- readIORef packages
705 ps' <- getPackageDetails ps
706 return (reverse (nub (filter (not.null) (concatMap c_includes ps'))))
708 getPackageLibraryPath :: IO [String]
709 getPackageLibraryPath = do
710 ps <- readIORef packages
711 ps' <- getPackageDetails ps
712 return (nub (concat (map library_dirs ps')))
714 getPackageLibraries :: IO [String]
715 getPackageLibraries = do
716 ps <- readIORef packages
717 ps' <- getPackageDetails ps
718 tag <- readIORef build_tag
719 let suffix = if null tag then "" else '_':tag
721 map (\p -> map (++suffix) (hs_libraries p) ++ extra_libraries p) ps'
724 getPackageExtraGhcOpts :: IO [String]
725 getPackageExtraGhcOpts = do
726 ps <- readIORef packages
727 ps' <- getPackageDetails ps
728 return (concatMap extra_ghc_opts ps')
730 getPackageExtraCcOpts :: IO [String]
731 getPackageExtraCcOpts = do
732 ps <- readIORef packages
733 ps' <- getPackageDetails ps
734 return (concatMap extra_cc_opts ps')
736 getPackageExtraLdOpts :: IO [String]
737 getPackageExtraLdOpts = do
738 ps <- readIORef packages
739 ps' <- getPackageDetails ps
740 return (concatMap extra_ld_opts ps')
742 getPackageDetails :: [String] -> IO [Package]
743 getPackageDetails ps = do
744 pkg_details <- readIORef package_details
745 return [ pkg | p <- ps, Just pkg <- [ lookupPkg p pkg_details ] ]
747 GLOBAL_VAR(package_details, (error "package_details"), [Package])
749 lookupPkg :: String -> [Package] -> Maybe Package
751 = case [p | p <- ps, name p == nm] of
755 -----------------------------------------------------------------------------
758 -- The central concept of a "way" is that all objects in a given
759 -- program must be compiled in the same "way". Certain options change
760 -- parameters of the virtual machine, eg. profiling adds an extra word
761 -- to the object header, so profiling objects cannot be linked with
762 -- non-profiling objects.
764 -- After parsing the command-line options, we determine which "way" we
765 -- are building - this might be a combination way, eg. profiling+ticky-ticky.
767 -- We then find the "build-tag" associated with this way, and this
768 -- becomes the suffix used to find .hi files and libraries used in
771 GLOBAL_VAR(build_tag, "", String)
801 GLOBAL_VAR(ways, [] ,[WayName])
803 -- ToDo: allow WayDll with any other allowed combination
805 allowed_combinations =
806 [ [WayProf,WayUnreg],
807 [WayProf,WaySMP] -- works???
810 findBuildTag :: IO [String] -- new options
812 way_names <- readIORef ways
813 case sort way_names of
814 [] -> do writeIORef build_tag ""
817 [w] -> do let details = lkupWay w
818 writeIORef build_tag (wayTag details)
819 return (wayOpts details)
821 ws -> if ws `notElem` allowed_combinations
822 then throwDyn (OtherError $
823 "combination not supported: " ++
824 foldr1 (\a b -> a ++ '/':b)
825 (map (wayName . lkupWay) ws))
826 else let stuff = map lkupWay ws
827 tag = concat (map wayTag stuff)
828 flags = map wayOpts stuff
830 writeIORef build_tag tag
831 return (concat flags)
834 case lookup w way_details of
835 Nothing -> error "findBuildTag"
836 Just details -> details
844 way_details :: [ (WayName, Way) ]
846 [ (WayProf, Way "p" "Profiling"
852 (WayTicky, Way "t" "Ticky-ticky Profiling"
855 , "-optc-DTICKY_TICKY"
858 (WayUnreg, Way "u" "Unregisterised"
860 , "-optc-DUSE_MINIINTERPRETER"
861 , "-fno-asm-mangling"
865 (WayDll, Way "dll" "DLLized"
868 (WayPar, Way "mp" "Parallel"
871 , "-D__PARALLEL_HASKELL__"
873 , "-package concurrent"
876 (WayGran, Way "mg" "Gransim"
881 , "-package concurrent"
884 (WaySMP, Way "s" "SMP"
891 (WayUser_a, Way "a" "User way 'a'" ["$WAY_a_REAL_OPTS"]),
892 (WayUser_b, Way "b" "User way 'b'" ["$WAY_b_REAL_OPTS"]),
893 (WayUser_c, Way "c" "User way 'c'" ["$WAY_c_REAL_OPTS"]),
894 (WayUser_d, Way "d" "User way 'd'" ["$WAY_d_REAL_OPTS"]),
895 (WayUser_e, Way "e" "User way 'e'" ["$WAY_e_REAL_OPTS"]),
896 (WayUser_f, Way "f" "User way 'f'" ["$WAY_f_REAL_OPTS"]),
897 (WayUser_g, Way "g" "User way 'g'" ["$WAY_g_REAL_OPTS"]),
898 (WayUser_h, Way "h" "User way 'h'" ["$WAY_h_REAL_OPTS"]),
899 (WayUser_i, Way "i" "User way 'i'" ["$WAY_i_REAL_OPTS"]),
900 (WayUser_j, Way "j" "User way 'j'" ["$WAY_j_REAL_OPTS"]),
901 (WayUser_k, Way "k" "User way 'k'" ["$WAY_k_REAL_OPTS"]),
902 (WayUser_l, Way "l" "User way 'l'" ["$WAY_l_REAL_OPTS"]),
903 (WayUser_m, Way "m" "User way 'm'" ["$WAY_m_REAL_OPTS"]),
904 (WayUser_n, Way "n" "User way 'n'" ["$WAY_n_REAL_OPTS"]),
905 (WayUser_o, Way "o" "User way 'o'" ["$WAY_o_REAL_OPTS"]),
906 (WayUser_A, Way "A" "User way 'A'" ["$WAY_A_REAL_OPTS"]),
907 (WayUser_B, Way "B" "User way 'B'" ["$WAY_B_REAL_OPTS"])
910 -----------------------------------------------------------------------------
911 -- Programs for particular phases
913 GLOBAL_VAR(pgm_L, findFile "unlit" cGHC_UNLIT, String)
914 GLOBAL_VAR(pgm_P, cRAWCPP, String)
915 GLOBAL_VAR(pgm_C, findFile "hsc" cGHC_HSC, String)
916 GLOBAL_VAR(pgm_c, cGCC, String)
917 GLOBAL_VAR(pgm_m, findFile "ghc-asm" cGHC_MANGLER, String)
918 GLOBAL_VAR(pgm_s, findFile "ghc-split" cGHC_SPLIT, String)
919 GLOBAL_VAR(pgm_a, cGCC, String)
920 GLOBAL_VAR(pgm_l, cGCC, String)
922 -----------------------------------------------------------------------------
923 -- Via-C compilation stuff
925 -- flags returned are: ( all C compilations
926 -- , registerised HC compilations
930 | prefixMatch "alpha" cTARGETPLATFORM
931 = return ( ["-static"], [] )
933 | prefixMatch "hppa" cTARGETPLATFORM
934 -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
935 -- (very nice, but too bad the HP /usr/include files don't agree.)
936 = return ( ["-static", "-D_HPUX_SOURCE"], [] )
938 | prefixMatch "m68k" cTARGETPLATFORM
939 -- -fno-defer-pop : for the .hc files, we want all the pushing/
940 -- popping of args to routines to be explicit; if we let things
941 -- be deferred 'til after an STGJUMP, imminent death is certain!
943 -- -fomit-frame-pointer : *don't*
944 -- It's better to have a6 completely tied up being a frame pointer
945 -- rather than let GCC pick random things to do with it.
946 -- (If we want to steal a6, then we would try to do things
947 -- as on iX86, where we *do* steal the frame pointer [%ebp].)
948 = return ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] )
950 | prefixMatch "i386" cTARGETPLATFORM
951 -- -fno-defer-pop : basically the same game as for m68k
953 -- -fomit-frame-pointer : *must* in .hc files; because we're stealing
954 -- the fp (%ebp) for our register maps.
955 = do n_regs <- readState stolen_x86_regs
956 sta <- readIORef static
957 return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else "" ],
958 [ "-fno-defer-pop", "-fomit-frame-pointer",
959 "-DSTOLEN_X86_REGS="++show n_regs ]
962 | prefixMatch "mips" cTARGETPLATFORM
963 = return ( ["static"], [] )
965 | prefixMatch "powerpc" cTARGETPLATFORM || prefixMatch "rs6000" cTARGETPLATFORM
966 = return ( ["static"], ["-finhibit-size-directive"] )
971 -----------------------------------------------------------------------------
972 -- Build the Hsc command line
974 build_hsc_opts :: IO [String]
976 opt_C_ <- getOpts opt_C -- misc hsc opts
979 warn_level <- readState warning_opt
980 let warn_opts = case warn_level of
981 W_default -> standardWarnings
983 W_all -> minusWallOpts
987 minus_o <- readIORef opt_level
990 0 -> hsc_minusNoO_flags
991 1 -> hsc_minusO_flags
992 2 -> hsc_minusO2_flags
993 _ -> error "unknown opt level"
997 ways_ <- readIORef ways
998 let stg_massage | WayProf `elem` ways_ = "-fmassage-stg-for-profiling"
1001 stg_stats <- readIORef opt_StgStats
1002 let stg_stats_flag | stg_stats = "-dstg-stats"
1005 let stg_opts = [ stg_massage, stg_stats_flag, "-flet-no-escape" ]
1006 -- let-no-escape always on for now
1009 let hi_vers = "-fhi-version="++cProjectVersionInt
1010 static <- (do s <- readIORef static; if s then return "-static" else return "")
1012 l <- readIORef hsc_lang
1013 let lang = case l of
1015 HscAsm -> "-olang=asm"
1016 HscJava -> "-olang=java"
1018 -- get hi-file suffix
1019 hisuf <- readIORef hi_suf
1021 -- hi-suffix for packages depends on the build tag.
1023 do tag <- readIORef build_tag
1026 else return (tag ++ "_hi")
1028 import_dirs <- readIORef import_paths
1029 package_import_dirs <- getPackageImportPath
1031 let hi_map = "-himap=" ++
1032 makeHiMap import_dirs hisuf
1033 package_import_dirs package_hisuf
1036 hi_map_sep = "-himap-sep=" ++ [split_marker]
1038 scale <- readIORef scale_sizes_by
1039 heap <- readState specific_heap_size
1040 stack <- readState specific_stack_size
1041 cmdline_rts_opts <- getOpts opt_Crts
1042 let heap' = truncate (fromIntegral heap * scale) :: Integer
1043 stack' = truncate (fromIntegral stack * scale) :: Integer
1044 rts_opts = [ "+RTS", "-H"++show heap', "-K"++show stack' ]
1045 ++ cmdline_rts_opts ++ [ "-RTS" ]
1047 -- take into account -fno-* flags by removing the equivalent -f*
1048 -- flag from our list.
1049 anti_flags <- getOpts anti_opt_C
1050 let basic_opts = opt_C_ ++ warn_opts ++ optimisation_opts ++ stg_opts
1051 filtered_opts = filter (`notElem` anti_flags) basic_opts
1056 -- ToDo: C stub files
1057 ++ [ hi_vers, static, verb, lang, hi_map, hi_map_sep ]
1062 (import_dirs :: [String])
1063 (hi_suffix :: String)
1064 (package_import_dirs :: [String])
1065 (package_hi_suffix :: String)
1066 (split_marker :: Char)
1067 = foldr (add_dir hi_suffix)
1068 (foldr (add_dir package_hi_suffix) "" package_import_dirs)
1071 add_dir hisuf dir str = dir ++ "%." ++ hisuf ++ split_marker : str
1074 getOptionsFromSource
1075 :: String -- input file
1076 -> IO [String] -- options, if any
1077 getOptionsFromSource file
1078 = do h <- openFile file ReadMode
1079 catchJust ioErrors (look h)
1080 (\e -> if isEOFError e then return [] else ioError e)
1085 () | null l -> look h
1086 | prefixMatch "#" l -> look h
1087 | prefixMatch "{-# LINE" l -> look h -- -}
1088 | Just (opts:_) <- matchRegex optionRegex l
1089 -> return (words opts)
1090 | otherwise -> return []
1092 optionRegex = mkRegex "\\{-#[ \t]+OPTIONS[ \t]+(.*)#-\\}" -- -}
1094 -----------------------------------------------------------------------------
1097 get_source_files :: [String] -> ([String],[String])
1098 get_source_files = partition (('-' /=) . head)
1101 -- all error messages are propagated as exceptions
1102 my_catchDyn (\dyn -> case dyn of
1103 PhaseFailed _phase code -> exitWith code
1104 Interrupted -> exitWith (ExitFailure 1)
1105 _ -> do hPutStrLn stderr (show (dyn :: BarfKind))
1106 exitWith (ExitFailure 1)
1109 later cleanTempFiles $
1110 -- exceptions will be blocked while we clean the temporary files,
1111 -- so there shouldn't be any difficulty if we receive further
1115 -- install signal handlers
1116 main_thread <- myThreadId
1118 #ifndef mingw32_TARGET_OS
1119 let sig_handler = Catch (raiseInThread main_thread
1120 (DynException (toDyn Interrupted)))
1121 installHandler sigQUIT sig_handler Nothing
1122 installHandler sigINT sig_handler Nothing
1126 writeIORef prog_name pgm
1130 -- grab any -B options from the command line first
1131 argv' <- setTopDir argv
1133 -- check whether TMPDIR is set in the environment
1134 #ifndef mingw32_TARGET_OS
1135 IO.try (do dir <- getEnv "TMPDIR" -- fails if not set
1136 writeIORef tmpdir dir)
1139 -- read the package configuration
1140 conf_file <- readIORef package_config
1141 contents <- readFile conf_file
1142 writeIORef package_details (read contents)
1144 -- find the phase to stop after (i.e. -E, -C, -c, -S flags)
1145 (flags2, todo, stop_flag) <- getToDo argv'
1146 writeIORef v_todo todo
1148 -- process all the other arguments, and get the source files
1149 srcs <- processArgs driver_opts flags2 []
1151 -- find the build tag, and re-process the build-specific options
1152 more_opts <- findBuildTag
1153 _ <- processArgs driver_opts more_opts []
1156 verb <- readIORef verbose
1158 when verb (hPutStrLn stderr ("Using package config file: " ++ conf_file))
1160 -- mkdependHS is special
1161 when (todo == DoMkDependHS) beginMkDependHS
1163 -- for each source file, find which phases to run
1164 pipelines <- mapM (genPipeline todo stop_flag) srcs
1165 let src_pipelines = zip srcs pipelines
1167 o_file <- readIORef output_file
1168 if isJust o_file && todo /= DoLink && length srcs > 1
1169 then throwDyn (UsageError "can't apply -o option to multiple source files")
1172 if null srcs then throwDyn (UsageError "no input files") else do
1174 -- save the flag state, because this could be modified by OPTIONS pragmas
1175 -- during the compilation, and we'll need to restore it before starting
1176 -- the next compilation.
1177 saved_driver_state <- readIORef driver_state
1179 let compileFile (src, phases) = do
1180 r <- run_pipeline phases src (todo==DoLink) True orig_base orig_suff
1181 writeIORef driver_state saved_driver_state
1183 where (orig_base, orig_suff) = splitFilename src
1185 o_files <- mapM compileFile src_pipelines
1187 when (todo == DoMkDependHS) endMkDependHS
1189 when (todo == DoLink) (do_link o_files)
1192 -----------------------------------------------------------------------------
1193 -- Which phase to stop at
1195 data ToDo = DoMkDependHS | DoMkDLL | StopBefore Phase | DoLink
1198 GLOBAL_VAR(v_todo, error "todo", ToDo)
1200 todoFlag :: String -> Maybe ToDo
1201 todoFlag "-M" = Just $ DoMkDependHS
1202 todoFlag "-E" = Just $ StopBefore Hsc
1203 todoFlag "-C" = Just $ StopBefore HCc
1204 todoFlag "-S" = Just $ StopBefore As
1205 todoFlag "-c" = Just $ StopBefore Ln
1206 todoFlag _ = Nothing
1209 -> IO ( [String] -- rest of command line
1210 , ToDo -- phase to stop at
1211 , String -- "stop at" flag
1214 = case my_partition todoFlag flags of
1215 ([] , rest) -> return (rest, DoLink, "") -- default is to do linking
1216 ([(flag,one)], rest) -> return (rest, one, flag)
1218 throwDyn (OtherError "only one of the flags -M, -E, -C, -S, -c is allowed")
1220 -----------------------------------------------------------------------------
1223 -- Herein is all the magic about which phases to run in which order, whether
1224 -- the intermediate files should be in /tmp or in the current directory,
1225 -- what the suffix of the intermediate files should be, etc.
1227 -- The following compilation pipeline algorithm is fairly hacky. A
1228 -- better way to do this would be to express the whole compilation as a
1229 -- data flow DAG, where the nodes are the intermediate files and the
1230 -- edges are the compilation phases. This framework would also work
1231 -- nicely if a Haskell dependency generator were included in the
1234 -- It would also deal much more cleanly with compilation phases that
1235 -- generate multiple intermediates, (eg. hsc generates .hc, .hi, and
1236 -- possibly stub files), where some of the output files need to be
1237 -- processed further (eg. the stub files need to be compiled by the C
1240 -- A cool thing to do would then be to execute the data flow graph
1241 -- concurrently, automatically taking advantage of extra processors on
1242 -- the host machine. For example, when compiling two Haskell files
1243 -- where one depends on the other, the data flow graph would determine
1244 -- that the C compiler from the first comilation can be overlapped
1245 -- with the hsc compilation for the second file.
1247 data IntermediateFileType
1252 -- the first compilation phase for a given file is determined
1254 startPhase "lhs" = Unlit
1255 startPhase "hs" = Cpp
1256 startPhase "hc" = HCc
1258 startPhase "raw_s" = Mangle
1262 startPhase _ = Ln -- all unknown file types
1265 :: ToDo -- when to stop
1266 -> String -- "stop after" flag (for error messages)
1267 -> String -- original filename
1268 -> IO [ -- list of phases to run for this file
1270 IntermediateFileType, -- keep the output from this phase?
1271 String) -- output file suffix
1274 genPipeline todo stop_flag filename
1276 split <- readIORef split_object_files
1277 mangle <- readIORef do_asm_mangling
1278 lang <- readIORef hsc_lang
1279 keep_hc <- readIORef keep_hc_files
1280 keep_raw_s <- readIORef keep_raw_s_files
1281 keep_s <- readIORef keep_s_files
1284 ----------- ----- ---- --- -- -- - - -
1285 (_basename, suffix) = splitFilename filename
1287 start_phase = startPhase suffix
1289 haskell_ish_file = suffix `elem` [ "hs", "lhs", "hc" ]
1290 c_ish_file = suffix `elem` [ "c", "s", "S" ] -- maybe .cc et al.??
1292 -- for a .hc file, or if the -C flag is given, we need to force lang to HscC
1294 | suffix == "hc" = HscC
1295 | todo == StopBefore HCc && lang /= HscC && haskell_ish_file = HscC
1299 ----------- ----- ---- --- -- -- - - -
1301 | todo == DoMkDependHS = [ Unlit, Cpp, MkDependHS ]
1303 | haskell_ish_file =
1305 HscC | split && mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle,
1306 SplitMangle, SplitAs ]
1307 | mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle, As ]
1308 | split -> not_valid
1309 | otherwise -> [ Unlit, Cpp, Hsc, HCc, As ]
1311 HscAsm | split -> [ Unlit, Cpp, Hsc, SplitMangle, SplitAs ]
1312 | otherwise -> [ Unlit, Cpp, Hsc, As ]
1314 HscJava | split -> not_valid
1315 | otherwise -> error "not implemented: compiling via Java"
1317 | c_ish_file = [ Cc, As ]
1319 | otherwise = [ ] -- just pass this file through to the linker
1321 -- ToDo: this is somewhat cryptic
1322 not_valid = throwDyn (OtherError ("invalid option combination"))
1323 ----------- ----- ---- --- -- -- - - -
1325 -- this shouldn't happen.
1326 if start_phase /= Ln && start_phase `notElem` pipeline
1327 then throwDyn (OtherError ("can't find starting phase for "
1331 -- if we can't find the phase we're supposed to stop before,
1332 -- something has gone wrong.
1336 && phase `notElem` pipeline
1337 && not (phase == As && SplitAs `elem` pipeline)) $
1338 throwDyn (OtherError
1339 ("flag " ++ stop_flag
1340 ++ " is incompatible with source file `" ++ filename ++ "'"))
1344 ----------- ----- ---- --- -- -- - - -
1346 :: [Phase] -- raw pipeline
1347 -> Phase -- phase to stop before
1348 -> [(Phase, IntermediateFileType, String{-file extension-})]
1349 annotatePipeline [] _ = []
1350 annotatePipeline (Ln:_) _ = []
1351 annotatePipeline (phase:next_phase:ps) stop =
1352 (phase, keep_this_output, phase_input_ext next_phase)
1353 : annotatePipeline (next_phase:ps) stop
1356 | next_phase == stop = Persistent
1360 Mangle | keep_raw_s -> Persistent
1361 As | keep_s -> Persistent
1362 HCc | keep_hc -> Persistent
1365 -- add information about output files to the pipeline
1366 -- the suffix on an output file is determined by the next phase
1367 -- in the pipeline, so we add linking to the end of the pipeline
1368 -- to force the output from the final phase to be a .o file.
1369 stop_phase = case todo of StopBefore phase -> phase
1372 annotated_pipeline = annotatePipeline (pipeline ++ [ Ln ]) stop_phase
1374 phase_ne p (p1,_,_) = (p1 /= p)
1375 ----------- ----- ---- --- -- -- - - -
1378 dropWhile (phase_ne start_phase) .
1379 foldr (\p ps -> if phase_ne stop_phase p then p:ps else []) []
1380 $ annotated_pipeline
1384 -- the output suffix for a given phase is uniquely determined by
1385 -- the input requirements of the next phase.
1386 phase_input_ext Unlit = "lhs"
1387 phase_input_ext Cpp = "lpp"
1388 phase_input_ext Hsc = "cpp"
1389 phase_input_ext HCc = "hc"
1390 phase_input_ext Cc = "c"
1391 phase_input_ext Mangle = "raw_s"
1392 phase_input_ext SplitMangle = "split_s" -- not really generated
1393 phase_input_ext As = "s"
1394 phase_input_ext SplitAs = "split_s" -- not really generated
1395 phase_input_ext Ln = "o"
1396 phase_input_ext MkDependHS = "dep"
1399 :: [ (Phase, IntermediateFileType, String) ] -- phases to run
1400 -> String -- input file
1401 -> Bool -- doing linking afterward?
1402 -> Bool -- take into account -o when generating output?
1403 -> String -- original basename (eg. Main)
1404 -> String -- original suffix (eg. hs)
1405 -> IO String -- return final filename
1407 run_pipeline [] input_fn _ _ _ _ = return input_fn
1408 run_pipeline ((phase, keep, o_suffix):phases)
1409 input_fn do_linking use_ofile orig_basename orig_suffix
1412 output_fn <- outputFileName (null phases) keep o_suffix
1414 carry_on <- run_phase phase orig_basename orig_suffix input_fn output_fn
1415 -- sometimes we bail out early, eg. when the compiler's recompilation
1416 -- checker has determined that recompilation isn't necessary.
1418 then do let (_,keep,final_suffix) = last phases
1419 ofile <- outputFileName True keep final_suffix
1421 else do -- carry on ...
1423 -- sadly, ghc -E is supposed to write the file to stdout. We
1424 -- generate <file>.cpp, so we also have to cat the file here.
1425 when (null phases && phase == Cpp) $
1426 run_something "Dump pre-processed file to stdout"
1427 ("cat " ++ output_fn)
1429 run_pipeline phases output_fn do_linking use_ofile orig_basename orig_suffix
1432 outputFileName last_phase keep suffix
1433 = do o_file <- readIORef output_file
1434 if last_phase && not do_linking && use_ofile && isJust o_file
1437 Nothing -> error "outputFileName"
1438 else if keep == Persistent
1439 then do f <- odir_ify (orig_basename ++ '.':suffix)
1441 else do filename <- newTempName suffix
1442 add files_to_clean filename
1445 -- find a temporary name that doesn't already exist.
1446 newTempName :: String -> IO String
1447 newTempName extn = do
1449 tmp_dir <- readIORef tmpdir
1450 findTempName tmp_dir x
1451 where findTempName tmp_dir x = do
1452 let filename = tmp_dir ++ "/ghc" ++ show x ++ '.':extn
1453 b <- doesFileExist filename
1454 if b then findTempName tmp_dir (x+1)
1455 else return filename
1457 -------------------------------------------------------------------------------
1461 GLOBAL_VAR(dep_makefile, "Makefile", String);
1462 GLOBAL_VAR(dep_include_prelude, False, Bool);
1463 GLOBAL_VAR(dep_ignore_dirs, [], [String]);
1464 GLOBAL_VAR(dep_suffixes, [], [String]);
1465 GLOBAL_VAR(dep_warnings, True, Bool);
1468 GLOBAL_VAR(dep_makefile_hdl, error "dep_makefile_hdl", Maybe Handle);
1469 GLOBAL_VAR(dep_tmp_file, error "dep_tmp_file", String);
1470 GLOBAL_VAR(dep_tmp_hdl, error "dep_tmp_hdl", Handle);
1471 GLOBAL_VAR(dep_dir_contents, error "dep_dir_contents", [(String,[String])]);
1473 depStartMarker = "# DO NOT DELETE: Beginning of Haskell dependencies"
1474 depEndMarker = "# DO NOT DELETE: End of Haskell dependencies"
1476 -- for compatibility with the old mkDependHS, we accept options of the form
1477 -- -optdep-f -optdep.depend, etc.
1479 ( "s", SepArg (add dep_suffixes) ),
1480 ( "f", SepArg (writeIORef dep_makefile) ),
1481 ( "w", NoArg (writeIORef dep_warnings False) ),
1482 ( "-include-prelude", NoArg (writeIORef dep_include_prelude True) ),
1483 ( "X", Prefix (addToDirList dep_ignore_dirs) ),
1484 ( "-exclude-directory=", Prefix (addToDirList dep_ignore_dirs) )
1487 beginMkDependHS :: IO ()
1488 beginMkDependHS = do
1490 -- slurp in the mkdependHS-style options
1491 flags <- getOpts opt_dep
1492 _ <- processArgs dep_opts flags []
1494 -- open a new temp file in which to stuff the dependency info
1496 dep_file <- newTempName "dep"
1497 add files_to_clean dep_file
1498 writeIORef dep_tmp_file dep_file
1499 tmp_hdl <- openFile dep_file WriteMode
1500 writeIORef dep_tmp_hdl tmp_hdl
1502 -- open the makefile
1503 makefile <- readIORef dep_makefile
1504 exists <- doesFileExist makefile
1507 writeIORef dep_makefile_hdl Nothing
1511 makefile_hdl <- openFile makefile ReadMode
1512 writeIORef dep_makefile_hdl (Just makefile_hdl)
1514 -- slurp through until we get the magic start string,
1515 -- copying the contents into dep_makefile
1517 l <- hGetLine makefile_hdl
1518 if (l == depStartMarker)
1520 else do hPutStrLn tmp_hdl l; slurp
1522 -- slurp through until we get the magic end marker,
1523 -- throwing away the contents
1525 l <- hGetLine makefile_hdl
1526 if (l == depEndMarker)
1530 catchJust ioErrors slurp
1531 (\e -> if isEOFError e then return () else ioError e)
1532 catchJust ioErrors chuck
1533 (\e -> if isEOFError e then return () else ioError e)
1536 -- write the magic marker into the tmp file
1537 hPutStrLn tmp_hdl depStartMarker
1539 -- cache the contents of all the import directories, for future
1541 import_dirs <- readIORef import_paths
1542 pkg_import_dirs <- getPackageImportPath
1543 import_dir_contents <- mapM getDirectoryContents import_dirs
1544 pkg_import_dir_contents <- mapM getDirectoryContents pkg_import_dirs
1545 writeIORef dep_dir_contents
1546 (zip import_dirs import_dir_contents ++
1547 zip pkg_import_dirs pkg_import_dir_contents)
1549 -- ignore packages unless --include-prelude is on
1550 include_prelude <- readIORef dep_include_prelude
1551 when (not include_prelude) $
1552 mapM_ (add dep_ignore_dirs) pkg_import_dirs
1557 endMkDependHS :: IO ()
1559 makefile <- readIORef dep_makefile
1560 makefile_hdl <- readIORef dep_makefile_hdl
1561 tmp_file <- readIORef dep_tmp_file
1562 tmp_hdl <- readIORef dep_tmp_hdl
1564 -- write the magic marker into the tmp file
1565 hPutStrLn tmp_hdl depEndMarker
1567 case makefile_hdl of
1568 Nothing -> return ()
1571 -- slurp the rest of the orignal makefile and copy it into the output
1577 catchJust ioErrors slurp
1578 (\e -> if isEOFError e then return () else ioError e)
1582 hClose tmp_hdl -- make sure it's flushed
1584 -- create a backup of the original makefile
1585 when (isJust makefile_hdl) $
1586 run_something ("Backing up " ++ makefile)
1587 (unwords [ "cp", makefile, makefile++".bak" ])
1589 -- copy the new makefile in place
1590 run_something "Installing new makefile"
1591 (unwords [ "cp", tmp_file, makefile ])
1594 findDependency :: String -> Import -> IO (Maybe (String, Bool))
1595 findDependency mod imp = do
1596 dir_contents <- readIORef dep_dir_contents
1597 ignore_dirs <- readIORef dep_ignore_dirs
1598 hisuf <- readIORef hi_suf
1601 (imp_mod, is_source) =
1603 Normal str -> (str, False)
1604 Source str -> (str, True )
1606 imp_hi = imp_mod ++ '.':hisuf
1607 imp_hiboot = imp_mod ++ ".hi-boot"
1608 imp_hiboot_v = imp_mod ++ ".hi-boot-" ++ cHscIfaceFileVersion
1609 imp_hs = imp_mod ++ ".hs"
1610 imp_lhs = imp_mod ++ ".lhs"
1612 deps | is_source = [ imp_hiboot_v, imp_hiboot, imp_hs, imp_lhs ]
1613 | otherwise = [ imp_hi, imp_hs, imp_lhs ]
1615 search [] = throwDyn (OtherError ("can't find one of the following: " ++
1616 unwords (map (\d -> '`': d ++ "'") deps) ++
1617 " (imported from `" ++ mod ++ "')"))
1618 search ((dir, contents) : dirs)
1619 | null present = search dirs
1621 if dir `elem` ignore_dirs
1624 then if dep /= imp_hiboot_v
1625 then return (Just (dir++'/':imp_hiboot, False))
1626 else return (Just (dir++'/':dep, False))
1627 else return (Just (dir++'/':imp_hi, not is_source))
1629 present = filter (`elem` contents) deps
1636 -------------------------------------------------------------------------------
1639 run_phase Unlit _basename _suff input_fn output_fn
1640 = do unlit <- readIORef pgm_L
1641 unlit_flags <- getOpts opt_L
1642 run_something "Literate pre-processor"
1643 ("echo '# 1 \"" ++input_fn++"\"' > "++output_fn++" && "
1644 ++ unlit ++ ' ':input_fn ++ " - >> " ++ output_fn)
1647 -------------------------------------------------------------------------------
1650 run_phase Cpp _basename _suff input_fn output_fn
1651 = do src_opts <- getOptionsFromSource input_fn
1652 -- ToDo: this is *wrong* if we're processing more than one file:
1653 -- the OPTIONS will persist through the subsequent compilations.
1654 _ <- processArgs driver_opts src_opts []
1656 do_cpp <- readState cpp_flag
1659 cpp <- readIORef pgm_P
1660 hscpp_opts <- getOpts opt_P
1661 hs_src_cpp_opts <- readIORef hs_source_cpp_opts
1663 cmdline_include_paths <- readIORef include_paths
1664 pkg_include_dirs <- getPackageIncludePath
1665 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
1666 ++ pkg_include_dirs)
1669 run_something "C pre-processor"
1671 (["echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}'", ">", output_fn, "&&",
1676 ++ [ "-x", "c", input_fn, ">>", output_fn ]
1679 run_something "Ineffective C pre-processor"
1680 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}' > "
1681 ++ output_fn ++ " && cat " ++ input_fn
1682 ++ " >> " ++ output_fn)
1685 -----------------------------------------------------------------------------
1688 run_phase MkDependHS basename suff input_fn _output_fn = do
1689 src <- readFile input_fn
1690 let imports = getImports src
1692 deps <- mapM (findDependency basename) imports
1694 osuf_opt <- readIORef output_suf
1695 let osuf = case osuf_opt of
1699 extra_suffixes <- readIORef dep_suffixes
1700 let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
1701 ofiles = map (\suf -> basename ++ '.':suf) suffixes
1703 objs <- mapM odir_ify ofiles
1705 hdl <- readIORef dep_tmp_hdl
1707 -- std dependeny of the object(s) on the source file
1708 hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
1710 let genDep (dep, False {- not an hi file -}) =
1711 hPutStrLn hdl (unwords objs ++ " : " ++ dep)
1712 genDep (dep, True {- is an hi file -}) = do
1713 hisuf <- readIORef hi_suf
1714 let dep_base = remove_suffix '.' dep
1715 deps = (dep_base ++ hisuf)
1716 : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
1717 -- length objs should be == length deps
1718 sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
1720 mapM genDep [ d | Just d <- deps ]
1724 -- add the lines to dep_makefile:
1728 -- if the dependency is on something other than a .hi file:
1729 -- this.o this.p_o ... : dep
1731 -- if the import is {-# SOURCE #-}
1732 -- this.o this.p_o ... : dep.hi-boot[-$vers]
1735 -- this.o ... : dep.hi
1736 -- this.p_o ... : dep.p_hi
1739 -- (where .o is $osuf, and the other suffixes come from
1740 -- the cmdline -s options).
1742 -----------------------------------------------------------------------------
1745 run_phase Hsc basename suff input_fn output_fn
1746 = do hsc <- readIORef pgm_C
1748 -- we add the current directory (i.e. the directory in which
1749 -- the .hs files resides) to the import path, since this is
1750 -- what gcc does, and it's probably what you want.
1751 let current_dir = getdir basename
1753 paths <- readIORef include_paths
1754 writeIORef include_paths (current_dir : paths)
1756 -- build the hsc command line
1757 hsc_opts <- build_hsc_opts
1759 doing_hi <- readIORef produceHi
1760 tmp_hi_file <- if doing_hi
1761 then do fn <- newTempName "hi"
1762 add files_to_clean fn
1766 -- deal with -Rghc-timing
1767 timing <- readIORef collect_ghc_timing
1768 stat_file <- newTempName "stat"
1769 add files_to_clean stat_file
1770 let stat_opts | timing = [ "+RTS", "-S"++stat_file, "-RTS" ]
1773 -- tmp files for foreign export stub code
1774 tmp_stub_h <- newTempName "stub_h"
1775 tmp_stub_c <- newTempName "stub_c"
1776 add files_to_clean tmp_stub_h
1777 add files_to_clean tmp_stub_c
1779 -- figure out where to put the .hi file
1780 ohi <- readIORef output_hi
1781 hisuf <- readIORef hi_suf
1782 let hi_flags = case ohi of
1783 Nothing -> [ "-hidir="++current_dir, "-hisuf="++hisuf ]
1784 Just fn -> [ "-hifile="++fn ]
1786 -- figure out if the source has changed, for recompilation avoidance.
1787 -- only do this if we're eventually going to generate a .o file.
1788 -- (ToDo: do when generating .hc files too?)
1790 -- Setting source_unchanged to "-fsource_unchanged" means that M.o seems
1791 -- to be up to date wrt M.hs; so no need to recompile unless imports have
1792 -- changed (which the compiler itself figures out).
1793 -- Setting source_unchanged to "" tells the compiler that M.o is out of
1794 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
1795 do_recomp <- readIORef recomp
1796 todo <- readIORef v_todo
1797 o_file <- odir_ify (basename ++ '.':phase_input_ext Ln)
1799 if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln ))
1801 else do t1 <- getModificationTime (basename ++ '.':suff)
1802 o_file_exists <- doesFileExist o_file
1803 if not o_file_exists
1804 then return "" -- Need to recompile
1805 else do t2 <- getModificationTime o_file
1807 then return "-fsource-unchanged"
1810 -- run the compiler!
1811 run_something "Haskell Compiler"
1812 (unwords (hsc : input_fn : (
1817 "-ofile="++output_fn,
1824 -- check whether compilation was performed, bail out if not
1825 b <- doesFileExist output_fn
1826 if not b && not (null source_unchanged) -- sanity
1827 then do run_something "Touching object file"
1828 ("touch " ++ o_file)
1830 else do -- carry on...
1832 -- Generate -Rghc-timing info
1834 run_something "Generate timing stats"
1835 (findFile "ghc-stats" cGHC_STATS ++ ' ':stat_file)
1839 let stub_h = basename ++ "_stub.h"
1840 let stub_c = basename ++ "_stub.c"
1842 -- copy .h_stub file into current dir if present
1843 b <- doesFileExist tmp_stub_h
1845 run_something "Copy stub .h file"
1846 ("cp " ++ tmp_stub_h ++ ' ':stub_h)
1848 -- #include <..._stub.h> in .hc file
1849 addCmdlineHCInclude tmp_stub_h -- hack
1851 -- copy the _stub.c file into the current dir
1852 run_something "Copy stub .c file"
1854 "rm -f", stub_c, "&&",
1855 "echo \'#include \""++stub_h++"\"\' >"++stub_c, " &&",
1856 "cat", tmp_stub_c, ">> ", stub_c
1859 -- compile the _stub.c file w/ gcc
1860 pipeline <- genPipeline (StopBefore Ln) "" stub_c
1861 run_pipeline pipeline stub_c False{-no linking-}
1862 False{-no -o option-}
1863 (basename++"_stub") "c"
1865 add ld_inputs (basename++"_stub.o")
1869 -----------------------------------------------------------------------------
1872 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
1873 -- way too many hacks, and I can't say I've ever used it anyway.
1875 run_phase cc_phase _basename _suff input_fn output_fn
1876 | cc_phase == Cc || cc_phase == HCc
1877 = do cc <- readIORef pgm_c
1878 cc_opts <- (getOpts opt_c)
1879 cmdline_include_dirs <- readIORef include_paths
1881 let hcc = cc_phase == HCc
1883 -- add package include paths even if we're just compiling
1884 -- .c files; this is the Value Add(TM) that using
1885 -- ghc instead of gcc gives you :)
1886 pkg_include_dirs <- getPackageIncludePath
1887 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
1888 ++ pkg_include_dirs)
1890 c_includes <- getPackageCIncludes
1891 cmdline_includes <- readState cmdline_hc_includes -- -#include options
1893 let cc_injects | hcc = unlines (map mk_include
1894 (c_includes ++ reverse cmdline_includes))
1898 '"':_{-"-} -> "#include "++h_file
1899 '<':_ -> "#include "++h_file
1900 _ -> "#include \""++h_file++"\""
1902 cc_help <- newTempName "c"
1903 add files_to_clean cc_help
1904 h <- openFile cc_help WriteMode
1905 hPutStr h cc_injects
1906 hPutStrLn h ("#include \"" ++ input_fn ++ "\"\n")
1909 ccout <- newTempName "ccout"
1910 add files_to_clean ccout
1912 mangle <- readIORef do_asm_mangling
1913 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
1917 o2 <- readIORef opt_minus_o2_for_C
1918 let opt_flag | o2 = "-O2"
1921 pkg_extra_cc_opts <- getPackageExtraCcOpts
1923 excessPrecision <- readState excess_precision
1925 run_something "C Compiler"
1926 (unwords ([ cc, "-x", "c", cc_help, "-o", output_fn ]
1928 ++ (if cc_phase == HCc && mangle
1929 then md_regd_c_flags
1931 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
1932 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
1934 #ifdef mingw32_TARGET_OS
1937 ++ (if excessPrecision then [] else [ "-ffloat-store" ])
1939 ++ pkg_extra_cc_opts
1944 -- ToDo: postprocess the output from gcc
1946 -----------------------------------------------------------------------------
1949 run_phase Mangle _basename _suff input_fn output_fn
1950 = do mangler <- readIORef pgm_m
1951 mangler_opts <- getOpts opt_m
1953 if (prefixMatch "i386" cTARGETPLATFORM)
1954 then do n_regs <- readState stolen_x86_regs
1955 return [ show n_regs ]
1957 run_something "Assembly Mangler"
1960 ++ [ input_fn, output_fn ]
1965 -----------------------------------------------------------------------------
1968 run_phase SplitMangle _basename _suff input_fn _output_fn
1969 = do splitter <- readIORef pgm_s
1971 -- this is the prefix used for the split .s files
1972 tmp_pfx <- readIORef tmpdir
1974 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
1975 writeIORef split_prefix split_s_prefix
1976 add files_to_clean (split_s_prefix ++ "__*") -- d:-)
1978 -- allocate a tmp file to put the no. of split .s files in (sigh)
1979 n_files <- newTempName "n_files"
1980 add files_to_clean n_files
1982 run_something "Split Assembly File"
1989 -- save the number of split files for future references
1990 s <- readFile n_files
1991 let n = read s :: Int
1992 writeIORef n_split_files n
1995 -----------------------------------------------------------------------------
1998 run_phase As _basename _suff input_fn output_fn
1999 = do as <- readIORef pgm_a
2000 as_opts <- getOpts opt_a
2002 cmdline_include_paths <- readIORef include_paths
2003 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
2004 run_something "Assembler"
2005 (unwords (as : as_opts
2006 ++ cmdline_include_flags
2007 ++ [ "-c", input_fn, "-o", output_fn ]
2011 run_phase SplitAs basename _suff _input_fn _output_fn
2012 = do as <- readIORef pgm_a
2013 as_opts <- getOpts opt_a
2015 split_s_prefix <- readIORef split_prefix
2016 n <- readIORef n_split_files
2018 odir <- readIORef output_dir
2019 let real_odir = case odir of
2023 let assemble_file n = do
2024 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
2025 let output_o = newdir real_odir
2026 (basename ++ "__" ++ show n ++ ".o")
2027 real_o <- osuf_ify output_o
2028 run_something "Assembler"
2029 (unwords (as : as_opts
2030 ++ [ "-c", "-o", real_o, input_s ]
2033 mapM_ assemble_file [1..n]
2036 -----------------------------------------------------------------------------
2039 do_link :: [String] -> IO ()
2040 do_link o_files = do
2041 ln <- readIORef pgm_l
2043 o_file <- readIORef output_file
2044 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
2046 pkg_lib_paths <- getPackageLibraryPath
2047 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
2049 lib_paths <- readIORef library_paths
2050 let lib_path_opts = map ("-L"++) lib_paths
2052 pkg_libs <- getPackageLibraries
2053 let pkg_lib_opts = map (\lib -> "-l"++lib) pkg_libs
2055 libs <- readIORef cmdline_libraries
2056 let lib_opts = map ("-l"++) (reverse libs)
2057 -- reverse because they're added in reverse order from the cmd line
2059 pkg_extra_ld_opts <- getPackageExtraLdOpts
2061 -- probably _stub.o files
2062 extra_ld_inputs <- readIORef ld_inputs
2064 -- opts from -optl-<blah>
2065 extra_ld_opts <- getOpts opt_l
2067 run_something "Linker"
2069 ([ ln, verb, "-o", output_fn ]
2074 ++ pkg_lib_path_opts
2076 ++ pkg_extra_ld_opts
2081 -----------------------------------------------------------------------------
2082 -- Running an external program
2084 run_something phase_name cmd
2086 verb <- readIORef verbose
2094 n <- readIORef dry_run
2098 #ifndef mingw32_TARGET_OS
2099 exit_code <- system cmd `catchAllIO`
2100 (\_ -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
2102 tmp <- newTempName "sh"
2103 h <- openFile tmp WriteMode
2106 exit_code <- system ("sh - " ++ tmp) `catchAllIO`
2107 (\e -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
2111 if exit_code /= ExitSuccess
2112 then throwDyn (PhaseFailed phase_name exit_code)
2113 else do when verb (putStr "\n")
2116 -----------------------------------------------------------------------------
2120 = NoArg (IO ()) -- flag with no argument
2121 | HasArg (String -> IO ()) -- flag has an argument (maybe prefix)
2122 | SepArg (String -> IO ()) -- flag has a separate argument
2123 | Prefix (String -> IO ()) -- flag is a prefix only
2124 | OptPrefix (String -> IO ()) -- flag may be a prefix
2125 | AnySuffix (String -> IO ()) -- flag is a prefix, pass whole arg to fn
2126 | PassFlag (String -> IO ()) -- flag with no arg, pass flag to fn
2128 -- note that ordering is important in the following list: any flag which
2129 -- is a prefix flag (i.e. HasArg, Prefix, OptPrefix, AnySuffix) will override
2130 -- flags further down the list with the same prefix.
2133 [ ------- help -------------------------------------------------------
2134 ( "?" , NoArg long_usage)
2135 , ( "-help" , NoArg long_usage)
2138 ------- version ----------------------------------------------------
2139 , ( "-version" , NoArg (do hPutStrLn stdout (cProjectName
2140 ++ ", version " ++ version_str)
2141 exitWith ExitSuccess))
2142 , ( "-numeric-version", NoArg (do hPutStrLn stdout version_str
2143 exitWith ExitSuccess))
2145 ------- verbosity ----------------------------------------------------
2146 , ( "v" , NoArg (writeIORef verbose True) )
2147 , ( "n" , NoArg (writeIORef dry_run True) )
2149 ------- recompilation checker --------------------------------------
2150 , ( "recomp" , NoArg (writeIORef recomp True) )
2151 , ( "no-recomp" , NoArg (writeIORef recomp False) )
2153 ------- ways --------------------------------------------------------
2154 , ( "prof" , NoArg (addNoDups ways WayProf) )
2155 , ( "unreg" , NoArg (addNoDups ways WayUnreg) )
2156 , ( "dll" , NoArg (addNoDups ways WayDll) )
2157 , ( "ticky" , NoArg (addNoDups ways WayTicky) )
2158 , ( "parallel" , NoArg (addNoDups ways WayPar) )
2159 , ( "gransim" , NoArg (addNoDups ways WayGran) )
2160 , ( "smp" , NoArg (addNoDups ways WaySMP) )
2161 , ( "debug" , NoArg (addNoDups ways WayDebug) )
2164 ------- Interface files ---------------------------------------------
2165 , ( "hi" , NoArg (writeIORef produceHi True) )
2166 , ( "nohi" , NoArg (writeIORef produceHi False) )
2167 , ( "hi-diffs" , NoArg (writeIORef hi_diffs NormalHiDiffs) )
2168 , ( "no-hi-diffs" , NoArg (writeIORef hi_diffs NoHiDiffs) )
2169 , ( "hi-diffs-with-usages" , NoArg (writeIORef hi_diffs UsageHiDiffs) )
2170 , ( "keep-hi-diffs" , NoArg (writeIORef keep_hi_diffs True) )
2171 --"hi-with-*" -> hiw <- readIORef hi_with (ToDo)
2173 --------- Profiling --------------------------------------------------
2174 , ( "auto-dicts" , NoArg (addOpt_C "-fauto-sccs-on-dicts") )
2175 , ( "auto-all" , NoArg (addOpt_C "-fauto-sccs-on-all-toplevs") )
2176 , ( "auto" , NoArg (addOpt_C "-fauto-sccs-on-exported-toplevs") )
2177 , ( "caf-all" , NoArg (addOpt_C "-fauto-sccs-on-individual-cafs") )
2178 -- "ignore-sccs" doesn't work (ToDo)
2180 , ( "no-auto-dicts" , NoArg (addAntiOpt_C "-fauto-sccs-on-dicts") )
2181 , ( "no-auto-all" , NoArg (addAntiOpt_C "-fauto-sccs-on-all-toplevs") )
2182 , ( "no-auto" , NoArg (addAntiOpt_C "-fauto-sccs-on-exported-toplevs") )
2183 , ( "no-caf-all" , NoArg (addAntiOpt_C "-fauto-sccs-on-individual-cafs") )
2185 ------- Miscellaneous -----------------------------------------------
2186 , ( "cpp" , NoArg (updateState (\s -> s{ cpp_flag = True })) )
2187 , ( "#include" , HasArg (addCmdlineHCInclude) )
2188 , ( "no-link-chk" , NoArg (return ()) ) -- ignored for backwards compat
2190 ------- Output Redirection ------------------------------------------
2191 , ( "odir" , HasArg (writeIORef output_dir . Just) )
2192 , ( "o" , SepArg (writeIORef output_file . Just) )
2193 , ( "osuf" , HasArg (writeIORef output_suf . Just) )
2194 , ( "hisuf" , HasArg (writeIORef hi_suf) )
2195 , ( "tmpdir" , HasArg (writeIORef tmpdir . (++ "/")) )
2196 , ( "ohi" , HasArg (\s -> case s of
2197 "-" -> writeIORef hi_on_stdout True
2198 _ -> writeIORef output_hi (Just s)) )
2201 , ( "keep-hc-file" , AnySuffix (\_ -> writeIORef keep_hc_files True) )
2202 , ( "keep-s-file" , AnySuffix (\_ -> writeIORef keep_s_files True) )
2203 , ( "keep-raw-s-file", AnySuffix (\_ -> writeIORef keep_raw_s_files True) )
2204 , ( "keep-tmp-files" , AnySuffix (\_ -> writeIORef keep_tmp_files True) )
2206 , ( "split-objs" , NoArg (if can_split
2207 then do writeIORef split_object_files True
2208 addOpt_C "-fglobalise-toplev-names"
2209 addOpt_c "-DUSE_SPLIT_MARKERS"
2210 else hPutStrLn stderr
2211 "warning: don't know how to split \
2212 \object files on this architecture"
2215 ------- Include/Import Paths ----------------------------------------
2216 , ( "i" , OptPrefix (addToDirList import_paths) )
2217 , ( "I" , Prefix (addToDirList include_paths) )
2219 ------- Libraries ---------------------------------------------------
2220 , ( "L" , Prefix (addToDirList library_paths) )
2221 , ( "l" , Prefix (add cmdline_libraries) )
2223 ------- Packages ----------------------------------------------------
2224 , ( "package-name" , HasArg (\s -> addOpt_C ("-inpackage="++s)) )
2226 , ( "package" , HasArg (addPackage) )
2227 , ( "syslib" , HasArg (addPackage) ) -- for compatibility w/ old vsns
2229 , ( "-list-packages" , NoArg (listPackages) )
2230 , ( "-add-package" , NoArg (newPackage) )
2231 , ( "-delete-package" , SepArg (deletePackage) )
2233 ------- Specific phases --------------------------------------------
2234 , ( "pgmL" , HasArg (writeIORef pgm_L) )
2235 , ( "pgmP" , HasArg (writeIORef pgm_P) )
2236 , ( "pgmC" , HasArg (writeIORef pgm_C) )
2237 , ( "pgmc" , HasArg (writeIORef pgm_c) )
2238 , ( "pgmm" , HasArg (writeIORef pgm_m) )
2239 , ( "pgms" , HasArg (writeIORef pgm_s) )
2240 , ( "pgma" , HasArg (writeIORef pgm_a) )
2241 , ( "pgml" , HasArg (writeIORef pgm_l) )
2243 , ( "optdep" , HasArg (addOpt_dep) )
2244 , ( "optL" , HasArg (addOpt_L) )
2245 , ( "optP" , HasArg (addOpt_P) )
2246 , ( "optCrts" , HasArg (addOpt_Crts) )
2247 , ( "optC" , HasArg (addOpt_C) )
2248 , ( "optc" , HasArg (addOpt_c) )
2249 , ( "optm" , HasArg (addOpt_m) )
2250 , ( "opta" , HasArg (addOpt_a) )
2251 , ( "optl" , HasArg (addOpt_l) )
2252 , ( "optdll" , HasArg (addOpt_dll) )
2254 ------ HsCpp opts ---------------------------------------------------
2255 , ( "D" , Prefix (\s -> addOpt_P ("-D'"++s++"'") ) )
2256 , ( "U" , Prefix (\s -> addOpt_P ("-U'"++s++"'") ) )
2258 ------ Warning opts -------------------------------------------------
2259 , ( "W" , NoArg (updateState (\s -> s{ warning_opt = W_ })))
2260 , ( "Wall" , NoArg (updateState (\s -> s{ warning_opt = W_all })))
2261 , ( "Wnot" , NoArg (updateState (\s -> s{ warning_opt = W_not })))
2262 , ( "w" , NoArg (updateState (\s -> s{ warning_opt = W_not })))
2264 ----- Linker --------------------------------------------------------
2265 , ( "static" , NoArg (writeIORef static True) )
2267 ------ Compiler RTS options -----------------------------------------
2268 , ( "H" , HasArg (newHeapSize . decodeSize) )
2269 , ( "K" , HasArg (newStackSize . decodeSize) )
2270 , ( "Rscale-sizes" , HasArg (floatOpt scale_sizes_by) )
2271 , ( "Rghc-timing" , NoArg (writeIORef collect_ghc_timing True) )
2273 ------ Debugging ----------------------------------------------------
2274 , ( "dstg-stats" , NoArg (writeIORef opt_StgStats True) )
2276 , ( "dno-" , Prefix (\s -> addAntiOpt_C ("-d"++s)) )
2277 , ( "d" , AnySuffix (addOpt_C) )
2279 ------ Machine dependant (-m<blah>) stuff ---------------------------
2281 , ( "monly-2-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 2}) ))
2282 , ( "monly-3-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 3}) ))
2283 , ( "monly-4-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 4}) ))
2285 ------ Compiler flags -----------------------------------------------
2286 , ( "O2-for-C" , NoArg (writeIORef opt_minus_o2_for_C True) )
2287 , ( "O" , OptPrefix (setOptLevel) )
2289 , ( "fglasgow-exts-no-lang", NoArg ( do addOpt_C "-fglasgow-exts") )
2291 , ( "fglasgow-exts" , NoArg (do addOpt_C "-fglasgow-exts"
2294 , ( "fasm" , OptPrefix (\_ -> writeIORef hsc_lang HscAsm) )
2296 , ( "fvia-c" , NoArg (writeIORef hsc_lang HscC) )
2297 , ( "fvia-C" , NoArg (writeIORef hsc_lang HscC) )
2299 , ( "fno-asm-mangling" , NoArg (writeIORef do_asm_mangling False) )
2301 , ( "fmax-simplifier-iterations",
2302 Prefix (writeIORef opt_MaxSimplifierIterations . read) )
2304 , ( "fusagesp" , NoArg (do writeIORef opt_UsageSPInf True
2305 addOpt_C "-fusagesp-on") )
2307 , ( "fexcess-precision" , NoArg (do updateState
2308 (\s -> s{ excess_precision = True })
2309 addOpt_C "-fexcess-precision"))
2311 -- flags that are "active negatives"
2312 , ( "fno-implicit-prelude" , PassFlag (addOpt_C) )
2313 , ( "fno-prune-tydecls" , PassFlag (addOpt_C) )
2314 , ( "fno-prune-instdecls" , PassFlag (addOpt_C) )
2315 , ( "fno-pre-inlining" , PassFlag (addOpt_C) )
2317 -- All other "-fno-<blah>" options cancel out "-f<blah>" on the hsc cmdline
2318 , ( "fno-", Prefix (\s -> addAntiOpt_C ("-f"++s)) )
2320 -- Pass all remaining "-f<blah>" options to hsc
2321 , ( "f", AnySuffix (addOpt_C) )
2324 -----------------------------------------------------------------------------
2325 -- Process command-line
2327 processArgs :: [(String,OptKind)] -> [String] -> [String]
2328 -> IO [String] -- returns spare args
2329 processArgs _spec [] spare = return (reverse spare)
2330 processArgs spec args@(('-':_):_) spare = do
2331 args' <- processOneArg spec args
2332 processArgs spec args' spare
2333 processArgs spec (arg:args) spare =
2334 processArgs spec args (arg:spare)
2336 processOneArg :: [(String,OptKind)] -> [String] -> IO [String]
2337 processOneArg spec (('-':arg):args) = do
2338 let (rest,action) = findArg spec arg
2344 then io >> return args
2345 else unknownFlagErr dash_arg
2349 then fio rest >> return args
2351 [] -> unknownFlagErr dash_arg
2352 (arg1:args1) -> fio arg1 >> return args1
2356 [] -> unknownFlagErr dash_arg
2357 (arg1:args1) -> fio arg1 >> return args1
2361 then fio rest >> return args
2362 else unknownFlagErr dash_arg
2364 OptPrefix fio -> fio rest >> return args
2366 AnySuffix fio -> fio ('-':arg) >> return args
2370 then unknownFlagErr dash_arg
2371 else fio ('-':arg) >> return args
2373 findArg :: [(String,OptKind)] -> String -> (String,OptKind)
2375 = case [ (remove_spaces rest, k) | (pat,k) <- spec,
2376 Just rest <- [my_prefix_match pat arg],
2377 is_prefix k || null rest ] of
2378 [] -> unknownFlagErr ('-':arg)
2381 is_prefix (NoArg _) = False
2382 is_prefix (SepArg _) = False
2383 is_prefix (PassFlag _) = False
2386 -----------------------------------------------------------------------------
2387 -- convert sizes like "3.5M" into integers
2389 decodeSize :: String -> Integer
2391 | c == "" = truncate n
2392 | c == "K" || c == "k" = truncate (n * 1000)
2393 | c == "M" || c == "m" = truncate (n * 1000 * 1000)
2394 | c == "G" || c == "g" = truncate (n * 1000 * 1000 * 1000)
2395 | otherwise = throwDyn (OtherError ("can't decode size: " ++ str))
2396 where (m, c) = span pred str
2397 n = read m :: Double
2398 pred c = isDigit c || c == '.'
2400 floatOpt :: IORef Double -> String -> IO ()
2402 = writeIORef ref (read str :: Double)
2404 -----------------------------------------------------------------------------
2405 -- Finding files in the installation
2407 GLOBAL_VAR(topDir, clibdir, String)
2409 -- grab the last -B option on the command line, and
2410 -- set topDir to its value.
2411 setTopDir :: [String] -> IO [String]
2413 let (minusbs, others) = partition (prefixMatch "-B") args
2415 [] -> writeIORef topDir clibdir
2416 some -> writeIORef topDir (drop 2 (last some)))
2419 findFile name alt_path = unsafePerformIO (do
2420 top_dir <- readIORef topDir
2421 let installed_file = top_dir ++ '/':name
2422 let inplace_file = top_dir ++ '/':cCURRENT_DIR ++ '/':alt_path
2423 b <- doesFileExist inplace_file
2424 if b then return inplace_file
2425 else return installed_file
2428 -----------------------------------------------------------------------------
2431 my_partition :: (a -> Maybe b) -> [a] -> ([(a,b)],[a])
2432 my_partition _ [] = ([],[])
2433 my_partition p (a:as)
2434 = let (bs,cs) = my_partition p as in
2436 Nothing -> (bs,a:cs)
2437 Just b -> ((a,b):bs,cs)
2439 my_prefix_match :: String -> String -> Maybe String
2440 my_prefix_match [] rest = Just rest
2441 my_prefix_match (_:_) [] = Nothing
2442 my_prefix_match (p:pat) (r:rest)
2443 | p == r = my_prefix_match pat rest
2444 | otherwise = Nothing
2446 prefixMatch :: Eq a => [a] -> [a] -> Bool
2447 prefixMatch [] _str = True
2448 prefixMatch _pat [] = False
2449 prefixMatch (p:ps) (s:ss) | p == s = prefixMatch ps ss
2452 postfixMatch :: String -> String -> Bool
2453 postfixMatch pat str = prefixMatch (reverse pat) (reverse str)
2455 later = flip finally
2457 my_catchDyn = flip catchDyn
2459 global :: a -> IORef a
2460 global a = unsafePerformIO (newIORef a)
2462 splitFilename :: String -> (String,String)
2463 splitFilename f = (reverse (stripDot rev_basename), reverse rev_ext)
2464 where (rev_ext, rev_basename) = span ('.' /=) (reverse f)
2465 stripDot ('.':xs) = xs
2468 suffixOf :: String -> String
2469 suffixOf s = drop_longest_prefix s '.'
2471 split :: Char -> String -> [String]
2472 split c s = case rest of
2474 _:rest -> chunk : split c rest
2475 where (chunk, rest) = break (==c) s
2477 add :: IORef [a] -> a -> IO ()
2480 writeIORef var (x:xs)
2482 addNoDups :: Eq a => IORef [a] -> a -> IO ()
2483 addNoDups var x = do
2485 unless (x `elem` xs) $ writeIORef var (x:xs)
2487 remove_suffix :: Char -> String -> String
2489 | null pre = reverse suf
2490 | otherwise = reverse pre
2491 where (suf,pre) = break (==c) (reverse s)
2493 drop_longest_prefix :: String -> Char -> String
2494 drop_longest_prefix s c = reverse suf
2495 where (suf,_pre) = break (==c) (reverse s)
2497 take_longest_prefix :: String -> Char -> String
2498 take_longest_prefix s c = reverse pre
2499 where (_suf,pre) = break (==c) (reverse s)
2501 newsuf :: String -> String -> String
2502 newsuf suf s = remove_suffix '.' s ++ suf
2504 -- getdir strips the filename off the input string, returning the directory.
2505 getdir :: String -> String
2506 getdir s = if null dir then "." else init dir
2507 where dir = take_longest_prefix s '/'
2509 newdir :: String -> String -> String
2510 newdir dir s = dir ++ '/':drop_longest_prefix s '/'
2512 remove_spaces :: String -> String
2513 remove_spaces = reverse . dropWhile isSpace . reverse . dropWhile isSpace
2515 -----------------------------------------------------------------------------
2516 -- compatibility code
2518 #if __GLASGOW_HASKELL__ <= 408
2520 ioErrors = justIoErrors