1 {-# OPTIONS -W -fno-warn-incomplete-patterns #-}
2 -----------------------------------------------------------------------------
3 -- $Id: Main.hs,v 1.1 2000/10/10 13:25:19 simonmar 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
16 import CmSummarise ( getImports )
17 import CmStaticInfo ( Package(..) )
23 #ifndef mingw32_TARGET_OS
38 -----------------------------------------------------------------------------
41 -- certain options in OPTIONS pragmas are persistent through subsequent compilations.
42 -- new mkdependHS doesn't support all the options that the old one did (-X et al.)
43 -- time commands when run with -v
48 -- Win32 support: proper signal handling
49 -- make sure OPTIONS in .hs file propogate to .hc file if -C or -keep-hc-file-too
50 -- reading the package configuration file is too slow
51 -- -H, -K, -Rghc-timing
53 -----------------------------------------------------------------------------
54 -- Differences vs. old driver:
56 -- No more "Enter your Haskell program, end with ^D (on a line of its own):"
57 -- consistency checking removed (may do this properly later)
59 -- no hi diffs (could be added later)
62 -----------------------------------------------------------------------------
63 -- non-configured things
65 cHaskell1Version = "5" -- i.e., Haskell 98
67 -----------------------------------------------------------------------------
70 short_usage = "Usage: For basic information, try the `--help' option."
73 let usage_file = "ghc-usage.txt"
74 usage_path = findFile usage_file (cGHC_DRIVER_DIR ++ '/':usage_file)
75 usage <- readFile usage_path
80 dump ('$':'$':s) = hPutStr stderr get_prog_name >> dump s
81 dump (c:s) = hPutChar stderr c >> dump s
83 version_str = cProjectVersion
85 -----------------------------------------------------------------------------
88 -- certain flags can be specified on a per-file basis, in an OPTIONS
89 -- pragma at the beginning of the source file. This means that when
90 -- compiling mulitple files, we have to restore the global option
91 -- settings before compiling a new file.
93 -- The DriverState record contains the per-file-mutable state.
95 data DriverState = DriverState {
97 -- are we runing cpp on this file?
101 specific_heap_size :: Integer,
102 specific_stack_size :: Integer,
105 stolen_x86_regs :: Int,
106 excess_precision :: Bool,
107 warning_opt :: WarningState,
108 cmdline_hc_includes :: [String],
110 -- options for a particular phase
111 anti_opt_C :: [String],
123 initDriverState = DriverState {
125 specific_heap_size = 6 * 1000 * 1000,
126 specific_stack_size = 1000 * 1000,
128 excess_precision = False,
129 warning_opt = W_default,
130 cmdline_hc_includes = [],
143 GLOBAL_VAR(driver_state, initDriverState, DriverState)
145 readState :: (DriverState -> a) -> IO a
146 readState f = readIORef driver_state >>= return . f
148 updateState :: (DriverState -> DriverState) -> IO ()
149 updateState f = readIORef driver_state >>= writeIORef driver_state . f
151 addAntiOpt_C a = updateState (\s -> s{anti_opt_C = a : anti_opt_C s})
152 addOpt_dep a = updateState (\s -> s{opt_dep = a : opt_dep s})
153 addOpt_L a = updateState (\s -> s{opt_L = a : opt_L s})
154 addOpt_P a = updateState (\s -> s{opt_P = a : opt_P s})
155 addOpt_C a = updateState (\s -> s{opt_C = a : opt_C s})
156 addOpt_c a = updateState (\s -> s{opt_c = a : opt_c s})
157 addOpt_a a = updateState (\s -> s{opt_a = a : opt_a s})
158 addOpt_m a = updateState (\s -> s{opt_m = a : opt_m s})
159 addOpt_l a = updateState (\s -> s{opt_l = a : opt_l s})
160 addOpt_dll a = updateState (\s -> s{opt_dll = a : opt_dll s})
162 addCmdlineHCInclude a =
163 updateState (\s -> s{cmdline_hc_includes = a : cmdline_hc_includes s})
165 -- we add to the options from the front, so we need to reverse the list
166 getOpts :: (DriverState -> [a]) -> IO [a]
167 getOpts opts = readState opts >>= return . reverse
169 newHeapSize :: Integer -> IO ()
170 newHeapSize new = updateState
171 (\s -> let current = specific_heap_size s in
172 s{ specific_heap_size = if new > current then new else current })
174 newStackSize :: Integer -> IO ()
175 newStackSize new = updateState
176 (\s -> let current = specific_stack_size s in
177 s{ specific_stack_size = if new > current then new else current })
179 -----------------------------------------------------------------------------
183 Phase of the | Suffix saying | Flag saying | (suffix of)
184 compilation system | ``start here''| ``stop after''| output file
186 literate pre-processor | .lhs | - | -
187 C pre-processor (opt.) | - | -E | -
188 Haskell compiler | .hs | -C, -S | .hc, .s
189 C compiler (opt.) | .hc or .c | -S | .s
190 assembler | .s or .S | -c | .o
191 linker | other | - | a.out
195 = MkDependHS -- haskell dependency generation
200 | HCc -- Haskellised C (as opposed to vanilla C) compilation
201 | Mangle -- assembly mangling, now done by a separate script.
202 | SplitMangle -- after mangler if splitting
208 -----------------------------------------------------------------------------
212 = PhaseFailed String ExitCode
214 | UsageError String -- prints the short usage msg after the error
215 | OtherError String -- just prints the error message
218 GLOBAL_VAR(prog_name, "ghc", String)
220 get_prog_name = unsafePerformIO (readIORef prog_name) -- urk!
222 instance Show BarfKind where
223 showsPrec _ e = showString get_prog_name . showString ": " . showBarf e
225 showBarf (UsageError str) = showString str . showChar '\n' . showString short_usage
226 showBarf (OtherError str) = showString str
227 showBarf (PhaseFailed phase code) =
228 showString phase . showString " failed, code = " . shows code
229 showBarf (Interrupted) = showString "interrupted"
231 unknownFlagErr f = throwDyn (UsageError ("unrecognised flag: " ++ f))
233 barfKindTc = mkTyCon "BarfKind"
234 instance Typeable BarfKind where
235 typeOf _ = mkAppTy barfKindTc []
237 -----------------------------------------------------------------------------
238 -- Global compilation flags
242 hs_source_cpp_opts = global
243 [ "-D__HASKELL1__="++cHaskell1Version
244 , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
246 , "-D__CONCURRENT_HASKELL__"
250 GLOBAL_VAR(verbose, False, Bool)
251 is_verbose = do v <- readIORef verbose; if v then return "-v" else return ""
253 -- Keep output from intermediate phases
254 GLOBAL_VAR(keep_hi_diffs, False, Bool)
255 GLOBAL_VAR(keep_hc_files, False, Bool)
256 GLOBAL_VAR(keep_s_files, False, Bool)
257 GLOBAL_VAR(keep_raw_s_files, False, Bool)
258 GLOBAL_VAR(keep_tmp_files, False, Bool)
261 GLOBAL_VAR(scale_sizes_by, 1.0, Double)
262 GLOBAL_VAR(dry_run, False, Bool)
263 #if !defined(HAVE_WIN32_DLL_SUPPORT) || defined(DONT_WANT_WIN32_DLL_SUPPORT)
264 GLOBAL_VAR(static, True, Bool)
266 GLOBAL_VAR(static, False, Bool)
268 GLOBAL_VAR(collect_ghc_timing, False, Bool)
269 GLOBAL_VAR(do_asm_mangling, True, Bool)
271 -----------------------------------------------------------------------------
272 -- Splitting object files (for libraries)
274 GLOBAL_VAR(split_object_files, False, Bool)
275 GLOBAL_VAR(split_prefix, "", String)
276 GLOBAL_VAR(n_split_files, 0, Int)
279 can_split = prefixMatch "i386" cTARGETPLATFORM
280 || prefixMatch "alpha" cTARGETPLATFORM
281 || prefixMatch "hppa" cTARGETPLATFORM
282 || prefixMatch "m68k" cTARGETPLATFORM
283 || prefixMatch "mips" cTARGETPLATFORM
284 || prefixMatch "powerpc" cTARGETPLATFORM
285 || prefixMatch "rs6000" cTARGETPLATFORM
286 || prefixMatch "sparc" cTARGETPLATFORM
288 -----------------------------------------------------------------------------
289 -- Compiler output options
297 GLOBAL_VAR(hsc_lang, if cGhcWithNativeCodeGen == "YES" &&
298 (prefixMatch "i386" cTARGETPLATFORM ||
299 prefixMatch "sparc" cTARGETPLATFORM)
304 GLOBAL_VAR(output_dir, Nothing, Maybe String)
305 GLOBAL_VAR(output_suf, Nothing, Maybe String)
306 GLOBAL_VAR(output_file, Nothing, Maybe String)
307 GLOBAL_VAR(output_hi, Nothing, Maybe String)
309 GLOBAL_VAR(ld_inputs, [], [String])
311 odir_ify :: String -> IO String
313 odir_opt <- readIORef output_dir
316 Just d -> return (newdir d f)
318 osuf_ify :: String -> IO String
320 osuf_opt <- readIORef output_suf
323 Just s -> return (newsuf s f)
325 -----------------------------------------------------------------------------
328 GLOBAL_VAR(produceHi, True, Bool)
329 GLOBAL_VAR(hi_on_stdout, False, Bool)
330 GLOBAL_VAR(hi_with, "", String)
331 GLOBAL_VAR(hi_suf, "hi", String)
333 data HiDiffFlag = NormalHiDiffs | UsageHiDiffs | NoHiDiffs
334 GLOBAL_VAR(hi_diffs, NoHiDiffs, HiDiffFlag)
336 -----------------------------------------------------------------------------
337 -- Warnings & sanity checking
339 -- Warning packages that are controlled by -W and -Wall. The 'standard'
340 -- warnings that you get all the time are
342 -- -fwarn-overlapping-patterns
343 -- -fwarn-missing-methods
344 -- -fwarn-missing-fields
345 -- -fwarn-deprecations
346 -- -fwarn-duplicate-exports
348 -- these are turned off by -Wnot.
350 standardWarnings = [ "-fwarn-overlapping-patterns"
351 , "-fwarn-missing-methods"
352 , "-fwarn-missing-fields"
353 , "-fwarn-deprecations"
354 , "-fwarn-duplicate-exports"
356 minusWOpts = standardWarnings ++
357 [ "-fwarn-unused-binds"
358 , "-fwarn-unused-matches"
359 , "-fwarn-incomplete-patterns"
360 , "-fwarn-unused-imports"
362 minusWallOpts = minusWOpts ++
363 [ "-fwarn-type-defaults"
364 , "-fwarn-name-shadowing"
365 , "-fwarn-missing-signatures"
366 , "-fwarn-hi-shadowing"
369 data WarningState = W_default | W_ | W_all | W_not
371 -----------------------------------------------------------------------------
372 -- Compiler optimisation options
374 GLOBAL_VAR(opt_level, 0, Int)
376 setOptLevel :: String -> IO ()
377 setOptLevel "" = do { writeIORef opt_level 1; go_via_C }
378 setOptLevel "not" = writeIORef opt_level 0
379 setOptLevel [c] | isDigit c = do
380 let level = ord c - ord '0'
381 writeIORef opt_level level
382 when (level >= 1) go_via_C
383 setOptLevel s = unknownFlagErr ("-O"++s)
386 l <- readIORef hsc_lang
387 case l of { HscAsm -> writeIORef hsc_lang HscC;
388 _other -> return () }
390 GLOBAL_VAR(opt_minus_o2_for_C, False, Bool)
392 GLOBAL_VAR(opt_MaxSimplifierIterations, 4, Int)
393 GLOBAL_VAR(opt_StgStats, False, Bool)
394 GLOBAL_VAR(opt_UsageSPInf, False, Bool) -- Off by default
396 hsc_minusO2_flags = hsc_minusO_flags -- for now
398 hsc_minusNoO_flags = do
399 iter <- readIORef opt_MaxSimplifierIterations
401 "-fignore-interface-pragmas",
402 "-fomit-interface-pragmas",
405 "-fmax-simplifier-iterations" ++ show iter,
409 hsc_minusO_flags = do
410 iter <- readIORef opt_MaxSimplifierIterations
411 usageSP <- readIORef opt_UsageSPInf
412 stgstats <- readIORef opt_StgStats
417 "-fdo-eta-reduction",
418 "-fdo-lambda-eta-expansion",
423 -- initial simplify: mk specialiser happy: minimum effort please
428 -- Don't inline anything till full laziness has bitten
429 -- In particular, inlining wrappers inhibits floating
430 -- e.g. ...(case f x of ...)...
431 -- ==> ...(case (case x of I# x# -> fw x#) of ...)...
432 -- ==> ...(case x of I# x# -> case fw x# of ...)...
433 -- and now the redex (f x) isn't floatable any more
436 -- Similarly, don't apply any rules until after full
437 -- laziness. Notably, list fusion can prevent floating.
440 -- Don't do case-of-case transformations.
441 -- This makes full laziness work better
443 "-fmax-simplifier-iterations2",
446 -- Specialisation is best done before full laziness
447 -- so that overloaded functions have all their dictionary lambdas manifest
456 -- Want to run with inline phase 1 after the specialiser to give
457 -- maximum chance for fusion to work before we inline build/augment
458 -- in phase 2. This made a difference in 'ansi' where an
459 -- overloaded function wasn't inlined till too late.
460 "-fmax-simplifier-iterations" ++ show iter,
463 -- infer usage information here in case we need it later.
464 -- (add more of these where you need them --KSW 1999-04)
465 if usageSP then "-fusagesp" else "",
469 -- Need inline-phase2 here so that build/augment get
470 -- inlined. I found that spectral/hartel/genfft lost some useful
471 -- strictness in the function sumcode' if augment is not inlined
472 -- before strictness analysis runs
475 "-fmax-simplifier-iterations2",
480 "-fmax-simplifier-iterations2",
481 -- No -finline-phase: allow all Ids to be inlined now
482 -- This gets foldr inlined before strictness analysis
492 "-fmax-simplifier-iterations" ++ show iter,
493 -- No -finline-phase: allow all Ids to be inlined now
497 -- nofib/spectral/hartel/wang doubles in speed if you
498 -- do full laziness late in the day. It only happens
499 -- after fusion and other stuff, so the early pass doesn't
500 -- catch it. For the record, the redex is
501 -- f_el22 (f_el21 r_midblock)
503 -- Leave out lambda lifting for now
504 -- "-fsimplify", -- Tidy up results of full laziness
506 -- "-fmax-simplifier-iterations2",
508 -- "-ffloat-outwards-full",
510 -- We want CSE to follow the final full-laziness pass, because it may
511 -- succeed in commoning up things floated out by full laziness.
513 -- CSE must immediately follow a simplification pass, because it relies
514 -- on the no-shadowing invariant. See comments at the top of CSE.lhs
515 -- So it must NOT follow float-inwards, which can give rise to shadowing,
516 -- even if its input doesn't have shadows. Hence putting it between
523 -- Case-liberation for -O2. This should be after
524 -- strictness analysis and the simplification which follows it.
526 -- ( ($OptLevel != 2)
528 -- : "-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 ]" ),
530 -- "-fliberate-case",
532 -- Final clean-up simplification:
535 "-fmax-simplifier-iterations" ++ show iter,
536 -- No -finline-phase: allow all Ids to be inlined now
541 -----------------------------------------------------------------------------
544 split_marker = ':' -- not configurable (ToDo)
546 import_paths, include_paths, library_paths :: IORef [String]
547 GLOBAL_VAR(import_paths, ["."], [String])
548 GLOBAL_VAR(include_paths, ["."], [String])
549 GLOBAL_VAR(library_paths, [], [String])
551 GLOBAL_VAR(cmdline_libraries, [], [String])
553 addToDirList :: IORef [String] -> String -> IO ()
554 addToDirList ref path
555 = do paths <- readIORef ref
556 writeIORef ref (paths ++ split split_marker path)
558 -----------------------------------------------------------------------------
561 GLOBAL_VAR(package_config, (findFile "package.conf" (cGHC_DRIVER_DIR++"/package.conf.inplace")), String)
563 listPackages :: IO ()
565 details <- readIORef package_details
566 hPutStr stdout (listPkgs details)
573 details <- readIORef package_details
574 hPutStr stdout "Reading package info from stdin... "
576 let new_pkg = read stuff :: Package
578 (\_ -> throwDyn (OtherError "parse error in package info"))
579 hPutStrLn stdout "done."
580 if (name new_pkg `elem` map name details)
581 then throwDyn (OtherError ("package `" ++ name new_pkg ++
582 "' already installed"))
584 conf_file <- readIORef package_config
585 savePackageConfig conf_file
586 maybeRestoreOldConfig conf_file $ do
587 writeNewConfig conf_file ( ++ [new_pkg])
590 deletePackage :: String -> IO ()
591 deletePackage pkg = do
593 details <- readIORef package_details
594 if (pkg `notElem` map name details)
595 then throwDyn (OtherError ("package `" ++ pkg ++ "' not installed"))
597 conf_file <- readIORef package_config
598 savePackageConfig conf_file
599 maybeRestoreOldConfig conf_file $ do
600 writeNewConfig conf_file (filter ((/= pkg) . name))
603 checkConfigAccess :: IO ()
604 checkConfigAccess = do
605 conf_file <- readIORef package_config
606 access <- getPermissions conf_file
607 unless (writable access)
608 (throwDyn (OtherError "you don't have permission to modify the package configuration file"))
610 maybeRestoreOldConfig :: String -> IO () -> IO ()
611 maybeRestoreOldConfig conf_file io
612 = catchAllIO io (\e -> do
613 hPutStr stdout "\nWARNING: an error was encountered while the new \n\
614 \configuration was being written. Attempting to \n\
615 \restore the old configuration... "
616 system ("cp " ++ conf_file ++ ".old " ++ conf_file)
617 hPutStrLn stdout "done."
621 writeNewConfig :: String -> ([Package] -> [Package]) -> IO ()
622 writeNewConfig conf_file fn = do
623 hPutStr stdout "Writing new package config file... "
624 old_details <- readIORef package_details
625 h <- openFile conf_file WriteMode
626 hPutStr h (dumpPackages (fn old_details))
628 hPutStrLn stdout "done."
630 savePackageConfig :: String -> IO ()
631 savePackageConfig conf_file = do
632 hPutStr stdout "Saving old package config file... "
633 -- mv rather than cp because we've already done an hGetContents
634 -- on this file so we won't be able to open it for writing
635 -- unless we move the old one out of the way...
636 system ("mv " ++ conf_file ++ " " ++ conf_file ++ ".old")
637 hPutStrLn stdout "done."
639 -- package list is maintained in dependency order
640 packages = global ["std", "rts", "gmp"] :: IORef [String]
641 -- comma in value, so can't use macro, grrr
642 {-# NOINLINE packages #-}
644 addPackage :: String -> IO ()
646 = do pkg_details <- readIORef package_details
647 case lookupPkg package pkg_details of
648 Nothing -> throwDyn (OtherError ("unknown package name: " ++ package))
650 ps <- readIORef packages
651 unless (package `elem` ps) $ do
652 mapM_ addPackage (package_deps details)
653 ps <- readIORef packages
654 writeIORef packages (package:ps)
656 getPackageImportPath :: IO [String]
657 getPackageImportPath = do
658 ps <- readIORef packages
659 ps' <- getPackageDetails ps
660 return (nub (concat (map import_dirs ps')))
662 getPackageIncludePath :: IO [String]
663 getPackageIncludePath = do
664 ps <- readIORef packages
665 ps' <- getPackageDetails ps
666 return (nub (filter (not.null) (concatMap include_dirs ps')))
668 -- includes are in reverse dependency order (i.e. rts first)
669 getPackageCIncludes :: IO [String]
670 getPackageCIncludes = do
671 ps <- readIORef packages
672 ps' <- getPackageDetails ps
673 return (reverse (nub (filter (not.null) (concatMap c_includes ps'))))
675 getPackageLibraryPath :: IO [String]
676 getPackageLibraryPath = do
677 ps <- readIORef packages
678 ps' <- getPackageDetails ps
679 return (nub (concat (map library_dirs ps')))
681 getPackageLibraries :: IO [String]
682 getPackageLibraries = do
683 ps <- readIORef packages
684 ps' <- getPackageDetails ps
685 tag <- readIORef build_tag
686 let suffix = if null tag then "" else '_':tag
688 map (\p -> map (++suffix) (hs_libraries p) ++ extra_libraries p) ps'
691 getPackageExtraGhcOpts :: IO [String]
692 getPackageExtraGhcOpts = do
693 ps <- readIORef packages
694 ps' <- getPackageDetails ps
695 return (concatMap extra_ghc_opts ps')
697 getPackageExtraCcOpts :: IO [String]
698 getPackageExtraCcOpts = do
699 ps <- readIORef packages
700 ps' <- getPackageDetails ps
701 return (concatMap extra_cc_opts ps')
703 getPackageExtraLdOpts :: IO [String]
704 getPackageExtraLdOpts = do
705 ps <- readIORef packages
706 ps' <- getPackageDetails ps
707 return (concatMap extra_ld_opts ps')
709 getPackageDetails :: [String] -> IO [Package]
710 getPackageDetails ps = do
711 pkg_details <- readIORef package_details
712 return [ pkg | p <- ps, Just pkg <- [ lookupPkg p pkg_details ] ]
714 GLOBAL_VAR(package_details, (error "package_details"), [Package])
716 lookupPkg :: String -> [Package] -> Maybe Package
718 = case [p | p <- ps, name p == nm] of
722 -----------------------------------------------------------------------------
725 -- The central concept of a "way" is that all objects in a given
726 -- program must be compiled in the same "way". Certain options change
727 -- parameters of the virtual machine, eg. profiling adds an extra word
728 -- to the object header, so profiling objects cannot be linked with
729 -- non-profiling objects.
731 -- After parsing the command-line options, we determine which "way" we
732 -- are building - this might be a combination way, eg. profiling+ticky-ticky.
734 -- We then find the "build-tag" associated with this way, and this
735 -- becomes the suffix used to find .hi files and libraries used in
738 GLOBAL_VAR(build_tag, "", String)
768 GLOBAL_VAR(ways, [] ,[WayName])
770 -- ToDo: allow WayDll with any other allowed combination
772 allowed_combinations =
773 [ [WayProf,WayUnreg],
774 [WayProf,WaySMP] -- works???
777 findBuildTag :: IO [String] -- new options
779 way_names <- readIORef ways
780 case sort way_names of
781 [] -> do writeIORef build_tag ""
784 [w] -> do let details = lkupWay w
785 writeIORef build_tag (wayTag details)
786 return (wayOpts details)
788 ws -> if ws `notElem` allowed_combinations
789 then throwDyn (OtherError $
790 "combination not supported: " ++
791 foldr1 (\a b -> a ++ '/':b)
792 (map (wayName . lkupWay) ws))
793 else let stuff = map lkupWay ws
794 tag = concat (map wayTag stuff)
795 flags = map wayOpts stuff
797 writeIORef build_tag tag
798 return (concat flags)
801 case lookup w way_details of
802 Nothing -> error "findBuildTag"
803 Just details -> details
811 way_details :: [ (WayName, Way) ]
813 [ (WayProf, Way "p" "Profiling"
819 (WayTicky, Way "t" "Ticky-ticky Profiling"
822 , "-optc-DTICKY_TICKY"
825 (WayUnreg, Way "u" "Unregisterised"
827 , "-optc-DUSE_MINIINTERPRETER"
828 , "-fno-asm-mangling"
832 (WayDll, Way "dll" "DLLized"
835 (WayPar, Way "mp" "Parallel"
837 , "-D__PARALLEL_HASKELL__"
839 , "-package concurrent"
842 (WayGran, Way "mg" "Gransim"
846 , "-package concurrent"
849 (WaySMP, Way "s" "SMP"
856 (WayUser_a, Way "a" "User way 'a'" ["$WAY_a_REAL_OPTS"]),
857 (WayUser_b, Way "b" "User way 'b'" ["$WAY_b_REAL_OPTS"]),
858 (WayUser_c, Way "c" "User way 'c'" ["$WAY_c_REAL_OPTS"]),
859 (WayUser_d, Way "d" "User way 'd'" ["$WAY_d_REAL_OPTS"]),
860 (WayUser_e, Way "e" "User way 'e'" ["$WAY_e_REAL_OPTS"]),
861 (WayUser_f, Way "f" "User way 'f'" ["$WAY_f_REAL_OPTS"]),
862 (WayUser_g, Way "g" "User way 'g'" ["$WAY_g_REAL_OPTS"]),
863 (WayUser_h, Way "h" "User way 'h'" ["$WAY_h_REAL_OPTS"]),
864 (WayUser_i, Way "i" "User way 'i'" ["$WAY_i_REAL_OPTS"]),
865 (WayUser_j, Way "j" "User way 'j'" ["$WAY_j_REAL_OPTS"]),
866 (WayUser_k, Way "k" "User way 'k'" ["$WAY_k_REAL_OPTS"]),
867 (WayUser_l, Way "l" "User way 'l'" ["$WAY_l_REAL_OPTS"]),
868 (WayUser_m, Way "m" "User way 'm'" ["$WAY_m_REAL_OPTS"]),
869 (WayUser_n, Way "n" "User way 'n'" ["$WAY_n_REAL_OPTS"]),
870 (WayUser_o, Way "o" "User way 'o'" ["$WAY_o_REAL_OPTS"]),
871 (WayUser_A, Way "A" "User way 'A'" ["$WAY_A_REAL_OPTS"]),
872 (WayUser_B, Way "B" "User way 'B'" ["$WAY_B_REAL_OPTS"])
875 -----------------------------------------------------------------------------
876 -- Programs for particular phases
878 GLOBAL_VAR(pgm_L, findFile "unlit" cGHC_UNLIT, String)
879 GLOBAL_VAR(pgm_P, cRAWCPP, String)
880 GLOBAL_VAR(pgm_C, findFile "hsc" cGHC_HSC, String)
881 GLOBAL_VAR(pgm_c, cGCC, String)
882 GLOBAL_VAR(pgm_m, findFile "ghc-asm" cGHC_MANGLER, String)
883 GLOBAL_VAR(pgm_s, findFile "ghc-split" cGHC_SPLIT, String)
884 GLOBAL_VAR(pgm_a, cGCC, String)
885 GLOBAL_VAR(pgm_l, cGCC, String)
887 -----------------------------------------------------------------------------
888 -- Via-C compilation stuff
890 -- flags returned are: ( all C compilations
891 -- , registerised HC compilations
895 | prefixMatch "alpha" cTARGETPLATFORM
896 = return ( ["-static"], [] )
898 | prefixMatch "hppa" cTARGETPLATFORM
899 -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
900 -- (very nice, but too bad the HP /usr/include files don't agree.)
901 = return ( ["-static", "-D_HPUX_SOURCE"], [] )
903 | prefixMatch "m68k" cTARGETPLATFORM
904 -- -fno-defer-pop : for the .hc files, we want all the pushing/
905 -- popping of args to routines to be explicit; if we let things
906 -- be deferred 'til after an STGJUMP, imminent death is certain!
908 -- -fomit-frame-pointer : *don't*
909 -- It's better to have a6 completely tied up being a frame pointer
910 -- rather than let GCC pick random things to do with it.
911 -- (If we want to steal a6, then we would try to do things
912 -- as on iX86, where we *do* steal the frame pointer [%ebp].)
913 = return ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] )
915 | prefixMatch "i386" cTARGETPLATFORM
916 -- -fno-defer-pop : basically the same game as for m68k
918 -- -fomit-frame-pointer : *must* in .hc files; because we're stealing
919 -- the fp (%ebp) for our register maps.
920 = do n_regs <- readState stolen_x86_regs
921 sta <- readIORef static
922 return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else "" ],
923 [ "-fno-defer-pop", "-fomit-frame-pointer",
924 "-DSTOLEN_X86_REGS="++show n_regs ]
927 | prefixMatch "mips" cTARGETPLATFORM
928 = return ( ["static"], [] )
930 | prefixMatch "powerpc" cTARGETPLATFORM || prefixMatch "rs6000" cTARGETPLATFORM
931 = return ( ["static"], ["-finhibit-size-directive"] )
936 -----------------------------------------------------------------------------
937 -- Build the Hsc command line
939 build_hsc_opts :: IO [String]
941 opt_C_ <- getOpts opt_C -- misc hsc opts
944 warn_level <- readState warning_opt
945 let warn_opts = case warn_level of
946 W_default -> standardWarnings
948 W_all -> minusWallOpts
952 minus_o <- readIORef opt_level
955 0 -> hsc_minusNoO_flags
956 1 -> hsc_minusO_flags
957 2 -> hsc_minusO2_flags
958 _ -> error "unknown opt level"
962 ways_ <- readIORef ways
963 let stg_massage | WayProf `elem` ways_ = "-fmassage-stg-for-profiling"
966 stg_stats <- readIORef opt_StgStats
967 let stg_stats_flag | stg_stats = "-dstg-stats"
970 let stg_opts = [ stg_massage, stg_stats_flag, "-flet-no-escape" ]
971 -- let-no-escape always on for now
974 let hi_vers = "-fhi-version="++cProjectVersionInt
975 static <- (do s <- readIORef static; if s then return "-static" else return "")
977 l <- readIORef hsc_lang
980 HscAsm -> "-olang=asm"
981 HscJava -> "-olang=java"
983 -- get hi-file suffix
984 hisuf <- readIORef hi_suf
986 -- hi-suffix for packages depends on the build tag.
988 do tag <- readIORef build_tag
991 else return (tag ++ "_hi")
993 import_dirs <- readIORef import_paths
994 package_import_dirs <- getPackageImportPath
996 let hi_map = "-himap=" ++
997 makeHiMap import_dirs hisuf
998 package_import_dirs package_hisuf
1001 hi_map_sep = "-himap-sep=" ++ [split_marker]
1003 scale <- readIORef scale_sizes_by
1004 heap <- readState specific_heap_size
1005 stack <- readState specific_stack_size
1007 -- take into account -fno-* flags by removing the equivalent -f*
1008 -- flag from our list.
1009 anti_flags <- getOpts anti_opt_C
1010 let basic_opts = opt_C_ ++ warn_opts ++ optimisation_opts ++ stg_opts
1011 filtered_opts = filter (`notElem` anti_flags) basic_opts
1016 -- ToDo: C stub files
1017 ++ [ hi_vers, static, verb, lang, hi_map, hi_map_sep ]
1022 (import_dirs :: [String])
1023 (hi_suffix :: String)
1024 (package_import_dirs :: [String])
1025 (package_hi_suffix :: String)
1026 (split_marker :: Char)
1027 = foldr (add_dir hi_suffix)
1028 (foldr (add_dir package_hi_suffix) "" package_import_dirs)
1031 add_dir hisuf dir str = dir ++ "%." ++ hisuf ++ split_marker : str
1034 getOptionsFromSource
1035 :: String -- input file
1036 -> IO [String] -- options, if any
1037 getOptionsFromSource file
1038 = do h <- openFile file ReadMode
1039 catchJust ioErrors (look h)
1040 (\e -> if isEOFError e then return [] else ioError e)
1045 () | null l -> look h
1046 | prefixMatch "#" l -> look h
1047 | prefixMatch "{-# LINE" l -> look h -- -}
1048 | Just (opts:_) <- matchRegex optionRegex l
1049 -> return (words opts)
1050 | otherwise -> return []
1052 optionRegex = mkRegex "\\{-#[ \t]+OPTIONS[ \t]+(.*)#-\\}" -- -}
1054 -----------------------------------------------------------------------------
1057 get_source_files :: [String] -> ([String],[String])
1058 get_source_files = partition (('-' /=) . head)
1061 -- all error messages are propagated as exceptions
1062 my_catchDyn (\dyn -> case dyn of
1063 PhaseFailed _phase code -> exitWith code
1064 Interrupted -> exitWith (ExitFailure 1)
1065 _ -> do hPutStrLn stderr (show (dyn :: BarfKind))
1066 exitWith (ExitFailure 1)
1069 -- make sure we clean up after ourselves
1070 later (do forget_it <- readIORef keep_tmp_files
1071 unless forget_it $ do
1072 verb <- readIORef verbose
1075 -- exceptions will be blocked while we clean the temporary files,
1076 -- so there shouldn't be any difficulty if we receive further
1080 -- install signal handlers
1081 main_thread <- myThreadId
1083 #ifndef mingw32_TARGET_OS
1084 let sig_handler = Catch (raiseInThread main_thread
1085 (DynException (toDyn Interrupted)))
1086 installHandler sigQUIT sig_handler Nothing
1087 installHandler sigINT sig_handler Nothing
1091 (hPutStr stderr "Glasgow Haskell Compiler, Version " >>
1092 hPutStr stderr compiler_version >>
1093 hPutStr stderr ", for Haskell 98, compiled by GHC version " >>
1094 hPutStr stderr booter_version >>
1095 hPutStr stderr "\n") >>
1098 writeIORef prog_name pgm
1102 -- grab any -B options from the command line first
1103 argv' <- setTopDir argv
1105 -- read the package configuration
1106 conf_file <- readIORef package_config
1107 contents <- readFile conf_file
1108 writeIORef package_details (read contents)
1110 -- find the phase to stop after (i.e. -E, -C, -c, -S flags)
1111 (flags2, todo, stop_flag) <- getToDo argv'
1112 writeIORef v_todo todo
1114 -- process all the other arguments, and get the source files
1115 srcs <- processArgs driver_opts flags2 []
1117 -- find the build tag, and re-process the build-specific options
1118 more_opts <- findBuildTag
1119 _ <- processArgs driver_opts more_opts []
1122 verb <- readIORef verbose
1124 when verb (hPutStrLn stderr ("Using package config file: " ++ conf_file))
1126 -- mkdependHS is special
1127 when (todo == DoMkDependHS) beginMkDependHS
1129 -- for each source file, find which phases to run
1130 pipelines <- mapM (genPipeline todo stop_flag) srcs
1131 let src_pipelines = zip srcs pipelines
1133 o_file <- readIORef output_file
1134 if isJust o_file && todo /= DoLink && length srcs > 1
1135 then throwDyn (UsageError "can't apply -o option to multiple source files")
1138 if null srcs then throwDyn (UsageError "no input files") else do
1140 -- save the flag state, because this could be modified by OPTIONS pragmas
1141 -- during the compilation, and we'll need to restore it before starting
1142 -- the next compilation.
1143 saved_driver_state <- readIORef driver_state
1145 let compileFile (src, phases) = do
1146 r <- run_pipeline phases src (todo==DoLink) True orig_base orig_suff
1147 writeIORef driver_state saved_driver_state
1149 where (orig_base, orig_suff) = splitFilename src
1151 o_files <- mapM compileFile src_pipelines
1153 when (todo == DoMkDependHS) endMkDependHS
1155 when (todo == DoLink) (do_link o_files)
1158 -----------------------------------------------------------------------------
1159 -- Which phase to stop at
1161 data ToDo = DoMkDependHS | DoMkDLL | StopBefore Phase | DoLink
1164 GLOBAL_VAR(v_todo, error "todo", ToDo)
1166 todoFlag :: String -> Maybe ToDo
1167 todoFlag "-M" = Just $ DoMkDependHS
1168 todoFlag "-E" = Just $ StopBefore Hsc
1169 todoFlag "-C" = Just $ StopBefore HCc
1170 todoFlag "-S" = Just $ StopBefore As
1171 todoFlag "-c" = Just $ StopBefore Ln
1172 todoFlag _ = Nothing
1175 -> IO ( [String] -- rest of command line
1176 , ToDo -- phase to stop at
1177 , String -- "stop at" flag
1180 = case my_partition todoFlag flags of
1181 ([] , rest) -> return (rest, DoLink, "") -- default is to do linking
1182 ([(flag,one)], rest) -> return (rest, one, flag)
1184 throwDyn (OtherError "only one of the flags -M, -E, -C, -S, -c is allowed")
1186 -----------------------------------------------------------------------------
1189 -- Herein is all the magic about which phases to run in which order, whether
1190 -- the intermediate files should be in /tmp or in the current directory,
1191 -- what the suffix of the intermediate files should be, etc.
1193 -- The following compilation pipeline algorithm is fairly hacky. A
1194 -- better way to do this would be to express the whole comilation as a
1195 -- data flow DAG, where the nodes are the intermediate files and the
1196 -- edges are the compilation phases. This framework would also work
1197 -- nicely if a haskell dependency generator was included in the
1200 -- It would also deal much more cleanly with compilation phases that
1201 -- generate multiple intermediates, (eg. hsc generates .hc, .hi, and
1202 -- possibly stub files), where some of the output files need to be
1203 -- processed further (eg. the stub files need to be compiled by the C
1206 -- A cool thing to do would then be to execute the data flow graph
1207 -- concurrently, automatically taking advantage of extra processors on
1208 -- the host machine. For example, when compiling two Haskell files
1209 -- where one depends on the other, the data flow graph would determine
1210 -- that the C compiler from the first comilation can be overlapped
1211 -- with the hsc comilation for the second file.
1213 data IntermediateFileType
1218 -- the first compilation phase for a given file is determined
1220 startPhase "lhs" = Unlit
1221 startPhase "hs" = Cpp
1222 startPhase "hc" = HCc
1224 startPhase "raw_s" = Mangle
1228 startPhase _ = Ln -- all unknown file types
1231 :: ToDo -- when to stop
1232 -> String -- "stop after" flag (for error messages)
1233 -> String -- original filename
1234 -> IO [ -- list of phases to run for this file
1236 IntermediateFileType, -- keep the output from this phase?
1237 String) -- output file suffix
1240 genPipeline todo stop_flag filename
1242 split <- readIORef split_object_files
1243 mangle <- readIORef do_asm_mangling
1244 lang <- readIORef hsc_lang
1245 keep_hc <- readIORef keep_hc_files
1246 keep_raw_s <- readIORef keep_raw_s_files
1247 keep_s <- readIORef keep_s_files
1250 ----------- ----- ---- --- -- -- - - -
1251 (_basename, suffix) = splitFilename filename
1253 start_phase = startPhase suffix
1255 haskell_ish_file = suffix `elem` [ "hs", "lhs", "hc" ]
1256 c_ish_file = suffix `elem` [ "c", "s", "S" ] -- maybe .cc et al.??
1258 -- for a .hc file, or if the -C flag is given, we need to force lang to HscC
1260 | suffix == "hc" = HscC
1261 | todo == StopBefore HCc && lang /= HscC && haskell_ish_file = HscC
1265 ----------- ----- ---- --- -- -- - - -
1267 | todo == DoMkDependHS = [ Unlit, Cpp, MkDependHS ]
1269 | haskell_ish_file =
1271 HscC | split && mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle,
1272 SplitMangle, SplitAs ]
1273 | mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle, As ]
1274 | split -> not_valid
1275 | otherwise -> [ Unlit, Cpp, Hsc, HCc, As ]
1277 HscAsm | split -> [ Unlit, Cpp, Hsc, SplitMangle, SplitAs ]
1278 | otherwise -> [ Unlit, Cpp, Hsc, As ]
1280 HscJava | split -> not_valid
1281 | otherwise -> error "not implemented: compiling via Java"
1283 | c_ish_file = [ Cc, As ]
1285 | otherwise = [ ] -- just pass this file through to the linker
1287 -- ToDo: this is somewhat cryptic
1288 not_valid = throwDyn (OtherError ("invalid option combination"))
1289 ----------- ----- ---- --- -- -- - - -
1291 -- this shouldn't happen.
1292 if start_phase /= Ln && start_phase `notElem` pipeline
1293 then throwDyn (OtherError ("can't find starting phase for "
1297 -- if we can't find the phase we're supposed to stop before,
1298 -- something has gone wrong.
1302 && phase `notElem` pipeline
1303 && not (phase == As && SplitAs `elem` pipeline)) $
1304 throwDyn (OtherError
1305 ("flag " ++ stop_flag
1306 ++ " is incompatible with source file `" ++ filename ++ "'"))
1310 ----------- ----- ---- --- -- -- - - -
1312 :: [Phase] -- raw pipeline
1313 -> Phase -- phase to stop before
1314 -> [(Phase, IntermediateFileType, String{-file extension-})]
1315 annotatePipeline [] _ = []
1316 annotatePipeline (Ln:_) _ = []
1317 annotatePipeline (phase:next_phase:ps) stop =
1318 (phase, keep_this_output, phase_input_ext next_phase)
1319 : annotatePipeline (next_phase:ps) stop
1322 | next_phase == stop = Persistent
1326 Mangle | keep_raw_s -> Persistent
1327 As | keep_s -> Persistent
1328 HCc | keep_hc -> Persistent
1331 -- add information about output files to the pipeline
1332 -- the suffix on an output file is determined by the next phase
1333 -- in the pipeline, so we add linking to the end of the pipeline
1334 -- to force the output from the final phase to be a .o file.
1335 stop_phase = case todo of StopBefore phase -> phase
1338 annotated_pipeline = annotatePipeline (pipeline ++ [ Ln ]) stop_phase
1340 phase_ne p (p1,_,_) = (p1 /= p)
1341 ----------- ----- ---- --- -- -- - - -
1344 dropWhile (phase_ne start_phase) .
1345 foldr (\p ps -> if phase_ne stop_phase p then p:ps else []) []
1346 $ annotated_pipeline
1350 -- the output suffix for a given phase is uniquely determined by
1351 -- the input requirements of the next phase.
1352 phase_input_ext Unlit = "lhs"
1353 phase_input_ext Cpp = "lpp"
1354 phase_input_ext Hsc = "cpp"
1355 phase_input_ext HCc = "hc"
1356 phase_input_ext Cc = "c"
1357 phase_input_ext Mangle = "raw_s"
1358 phase_input_ext SplitMangle = "split_s" -- not really generated
1359 phase_input_ext As = "s"
1360 phase_input_ext SplitAs = "split_s" -- not really generated
1361 phase_input_ext Ln = "o"
1362 phase_input_ext MkDependHS = "dep"
1365 :: [ (Phase, IntermediateFileType, String) ] -- phases to run
1366 -> String -- input file
1367 -> Bool -- doing linking afterward?
1368 -> Bool -- take into account -o when generating output?
1369 -> String -- original basename (eg. Main)
1370 -> String -- original suffix (eg. hs)
1371 -> IO String -- return final filename
1373 run_pipeline [] input_fn _ _ _ _ = return input_fn
1374 run_pipeline ((phase, keep, o_suffix):phases)
1375 input_fn do_linking use_ofile orig_basename orig_suffix
1378 output_fn <- outputFileName (null phases) keep o_suffix
1380 carry_on <- run_phase phase orig_basename orig_suffix input_fn output_fn
1381 -- sometimes we bail out early, eg. when the compiler's recompilation
1382 -- checker has determined that recompilation isn't necessary.
1384 then do let (_,keep,final_suffix) = last phases
1385 ofile <- outputFileName True keep final_suffix
1387 else do -- carry on ...
1389 -- sadly, ghc -E is supposed to write the file to stdout. We
1390 -- generate <file>.cpp, so we also have to cat the file here.
1391 when (null phases && phase == Cpp) $
1392 run_something "Dump pre-processed file to stdout"
1393 ("cat " ++ output_fn)
1395 run_pipeline phases output_fn do_linking use_ofile orig_basename orig_suffix
1398 outputFileName last_phase keep suffix
1399 = do o_file <- readIORef output_file
1400 if last_phase && not do_linking && use_ofile && isJust o_file
1403 Nothing -> error "outputFileName"
1404 else if keep == Persistent
1405 then do f <- odir_ify (orig_basename ++ '.':suffix)
1407 else do filename <- newTempName suffix
1408 add files_to_clean filename
1411 -------------------------------------------------------------------------------
1415 GLOBAL_VAR(dep_makefile, "Makefile", String);
1416 GLOBAL_VAR(dep_include_prelude, False, Bool);
1417 GLOBAL_VAR(dep_ignore_dirs, [], [String]);
1418 GLOBAL_VAR(dep_suffixes, [], [String]);
1419 GLOBAL_VAR(dep_warnings, True, Bool);
1422 GLOBAL_VAR(dep_makefile_hdl, error "dep_makefile_hdl", Maybe Handle);
1423 GLOBAL_VAR(dep_tmp_file, error "dep_tmp_file", String);
1424 GLOBAL_VAR(dep_tmp_hdl, error "dep_tmp_hdl", Handle);
1425 GLOBAL_VAR(dep_dir_contents, error "dep_dir_contents", [(String,[String])]);
1427 depStartMarker = "# DO NOT DELETE: Beginning of Haskell dependencies"
1428 depEndMarker = "# DO NOT DELETE: End of Haskell dependencies"
1430 -- for compatibility with the old mkDependHS, we accept options of the form
1431 -- -optdep-f -optdep.depend, etc.
1433 ( "s", SepArg (add dep_suffixes) ),
1434 ( "f", SepArg (writeIORef dep_makefile) ),
1435 ( "w", NoArg (writeIORef dep_warnings False) ),
1436 ( "-include-prelude", NoArg (writeIORef dep_include_prelude True) ),
1437 ( "X", Prefix (addToDirList dep_ignore_dirs) ),
1438 ( "-exclude-directory=", Prefix (addToDirList dep_ignore_dirs) )
1441 beginMkDependHS :: IO ()
1442 beginMkDependHS = do
1444 -- slurp in the mkdependHS-style options
1445 flags <- getOpts opt_dep
1446 _ <- processArgs dep_opts flags []
1448 -- open a new temp file in which to stuff the dependency info
1450 dep_file <- newTempName "dep"
1451 add files_to_clean dep_file
1452 writeIORef dep_tmp_file dep_file
1453 tmp_hdl <- openFile dep_file WriteMode
1454 writeIORef dep_tmp_hdl tmp_hdl
1456 -- open the makefile
1457 makefile <- readIORef dep_makefile
1458 exists <- doesFileExist makefile
1461 writeIORef dep_makefile_hdl Nothing
1465 makefile_hdl <- openFile makefile ReadMode
1466 writeIORef dep_makefile_hdl (Just makefile_hdl)
1468 -- slurp through until we get the magic start string,
1469 -- copying the contents into dep_makefile
1471 l <- hGetLine makefile_hdl
1472 if (l == depStartMarker)
1474 else do hPutStrLn tmp_hdl l; slurp
1476 -- slurp through until we get the magic end marker,
1477 -- throwing away the contents
1479 l <- hGetLine makefile_hdl
1480 if (l == depEndMarker)
1484 catchJust ioErrors slurp
1485 (\e -> if isEOFError e then return () else ioError e)
1486 catchJust ioErrors chuck
1487 (\e -> if isEOFError e then return () else ioError e)
1490 -- write the magic marker into the tmp file
1491 hPutStrLn tmp_hdl depStartMarker
1493 -- cache the contents of all the import directories, for future
1495 import_dirs <- readIORef import_paths
1496 pkg_import_dirs <- getPackageImportPath
1497 import_dir_contents <- mapM getDirectoryContents import_dirs
1498 pkg_import_dir_contents <- mapM getDirectoryContents pkg_import_dirs
1499 writeIORef dep_dir_contents
1500 (zip import_dirs import_dir_contents ++
1501 zip pkg_import_dirs pkg_import_dir_contents)
1503 -- ignore packages unless --include-prelude is on
1504 include_prelude <- readIORef dep_include_prelude
1505 when (not include_prelude) $
1506 mapM_ (add dep_ignore_dirs) pkg_import_dirs
1511 endMkDependHS :: IO ()
1513 makefile <- readIORef dep_makefile
1514 makefile_hdl <- readIORef dep_makefile_hdl
1515 tmp_file <- readIORef dep_tmp_file
1516 tmp_hdl <- readIORef dep_tmp_hdl
1518 -- write the magic marker into the tmp file
1519 hPutStrLn tmp_hdl depEndMarker
1521 case makefile_hdl of
1522 Nothing -> return ()
1525 -- slurp the rest of the orignal makefile and copy it into the output
1531 catchJust ioErrors slurp
1532 (\e -> if isEOFError e then return () else ioError e)
1536 hClose tmp_hdl -- make sure it's flushed
1538 -- create a backup of the original makefile
1539 when (isJust makefile_hdl) $
1540 run_something ("Backing up " ++ makefile)
1541 (unwords [ "cp", makefile, makefile++".bak" ])
1543 -- copy the new makefile in place
1544 run_something "Installing new makefile"
1545 (unwords [ "cp", tmp_file, makefile ])
1548 findDependency :: String -> Import -> IO (Maybe (String, Bool))
1549 findDependency mod imp = do
1550 dir_contents <- readIORef dep_dir_contents
1551 ignore_dirs <- readIORef dep_ignore_dirs
1552 hisuf <- readIORef hi_suf
1555 (imp_mod, is_source) =
1557 Normal str -> (str, False)
1558 Source str -> (str, True )
1560 imp_hi = imp_mod ++ '.':hisuf
1561 imp_hiboot = imp_mod ++ ".hi-boot"
1562 imp_hiboot_v = imp_mod ++ ".hi-boot-" ++ cHscIfaceFileVersion
1563 imp_hs = imp_mod ++ ".hs"
1564 imp_lhs = imp_mod ++ ".lhs"
1566 deps | is_source = [ imp_hiboot_v, imp_hiboot, imp_hs, imp_lhs ]
1567 | otherwise = [ imp_hi, imp_hs, imp_lhs ]
1569 search [] = throwDyn (OtherError ("can't find one of the following: " ++
1570 unwords (map (\d -> '`': d ++ "'") deps) ++
1571 " (imported from `" ++ mod ++ "')"))
1572 search ((dir, contents) : dirs)
1573 | null present = search dirs
1575 if dir `elem` ignore_dirs
1578 then if dep /= imp_hiboot_v
1579 then return (Just (dir++'/':imp_hiboot, False))
1580 else return (Just (dir++'/':dep, False))
1581 else return (Just (dir++'/':imp_hi, not is_source))
1583 present = filter (`elem` contents) deps
1590 -------------------------------------------------------------------------------
1593 run_phase Unlit _basename _suff input_fn output_fn
1594 = do unlit <- readIORef pgm_L
1595 unlit_flags <- getOpts opt_L
1596 run_something "Literate pre-processor"
1597 ("echo '# 1 \"" ++input_fn++"\"' > "++output_fn++" && "
1598 ++ unlit ++ ' ':input_fn ++ " - >> " ++ output_fn)
1601 -------------------------------------------------------------------------------
1604 run_phase Cpp _basename _suff input_fn output_fn
1605 = do src_opts <- getOptionsFromSource input_fn
1606 -- ToDo: this is *wrong* if we're processing more than one file:
1607 -- the OPTIONS will persist through the subsequent compilations.
1608 _ <- processArgs driver_opts src_opts []
1610 do_cpp <- readState cpp_flag
1613 cpp <- readIORef pgm_P
1614 hscpp_opts <- getOpts opt_P
1615 hs_src_cpp_opts <- readIORef hs_source_cpp_opts
1617 cmdline_include_paths <- readIORef include_paths
1618 pkg_include_dirs <- getPackageIncludePath
1619 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
1620 ++ pkg_include_dirs)
1623 run_something "C pre-processor"
1625 (["echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}'", ">", output_fn, "&&",
1630 ++ [ "-x", "c", input_fn, ">>", output_fn ]
1633 run_something "Ineffective C pre-processor"
1634 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}' > "
1635 ++ output_fn ++ " && cat " ++ input_fn
1636 ++ " >> " ++ output_fn)
1639 -----------------------------------------------------------------------------
1642 run_phase MkDependHS basename suff input_fn _output_fn = do
1643 src <- readFile input_fn
1644 let imports = getImports src
1646 deps <- mapM (findDependency basename) imports
1648 osuf_opt <- readIORef output_suf
1649 let osuf = case osuf_opt of
1653 extra_suffixes <- readIORef dep_suffixes
1654 let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
1655 ofiles = map (\suf -> basename ++ '.':suf) suffixes
1657 objs <- mapM odir_ify ofiles
1659 hdl <- readIORef dep_tmp_hdl
1661 -- std dependeny of the object(s) on the source file
1662 hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
1664 let genDep (dep, False {- not an hi file -}) =
1665 hPutStrLn hdl (unwords objs ++ " : " ++ dep)
1666 genDep (dep, True {- is an hi file -}) = do
1667 hisuf <- readIORef hi_suf
1668 let dep_base = remove_suffix '.' dep
1669 deps = (dep_base ++ hisuf)
1670 : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
1671 -- length objs should be == length deps
1672 sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
1674 mapM genDep [ d | Just d <- deps ]
1678 -- add the lines to dep_makefile:
1682 -- if the dependency is on something other than a .hi file:
1683 -- this.o this.p_o ... : dep
1685 -- if the import is {-# SOURCE #-}
1686 -- this.o this.p_o ... : dep.hi-boot[-$vers]
1689 -- this.o ... : dep.hi
1690 -- this.p_o ... : dep.p_hi
1693 -- (where .o is $osuf, and the other suffixes come from
1694 -- the cmdline -s options).
1696 -----------------------------------------------------------------------------
1699 run_phase Hsc basename suff input_fn output_fn
1700 = do hsc <- readIORef pgm_C
1702 -- we add the current directory (i.e. the directory in which
1703 -- the .hs files resides) to the import path, since this is
1704 -- what gcc does, and it's probably what you want.
1705 let current_dir = getdir basename
1707 paths <- readIORef include_paths
1708 writeIORef include_paths (current_dir : paths)
1710 -- build the hsc command line
1711 hsc_opts <- build_hsc_opts
1713 doing_hi <- readIORef produceHi
1714 tmp_hi_file <- if doing_hi
1715 then do fn <- newTempName "hi"
1716 add files_to_clean fn
1720 -- tmp files for foreign export stub code
1721 tmp_stub_h <- newTempName "stub_h"
1722 tmp_stub_c <- newTempName "stub_c"
1723 add files_to_clean tmp_stub_h
1724 add files_to_clean tmp_stub_c
1726 -- figure out where to put the .hi file
1727 ohi <- readIORef output_hi
1728 hisuf <- readIORef hi_suf
1729 let hi_flags = case ohi of
1730 Nothing -> [ "-hidir="++current_dir, "-hisuf="++hisuf ]
1731 Just fn -> [ "-hifile="++fn ]
1733 -- figure out if the source has changed, for recompilation avoidance.
1734 -- only do this if we're eventually going to generate a .o file.
1735 -- (ToDo: do when generating .hc files too?)
1737 -- Setting source_unchanged to "-fsource_unchanged" means that M.o seems
1738 -- to be up to date wrt M.hs; so no need to recompile unless imports have
1739 -- changed (which the compiler itself figures out).
1740 -- Setting source_unchanged to "" tells the compiler that M.o is out of
1741 -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
1742 do_recomp <- readIORef recomp
1743 todo <- readIORef v_todo
1744 o_file <- odir_ify (basename ++ '.':phase_input_ext Ln)
1746 if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln ))
1748 else do t1 <- getModificationTime (basename ++ '.':suff)
1749 o_file_exists <- doesFileExist o_file
1750 if not o_file_exists
1751 then return "" -- Need to recompile
1752 else do t2 <- getModificationTime o_file
1754 then return "-fsource-unchanged"
1757 -- run the compiler!
1758 run_something "Haskell Compiler"
1759 (unwords (hsc : input_fn : (
1764 "-ofile="++output_fn,
1771 -- check whether compilation was performed, bail out if not
1772 b <- doesFileExist output_fn
1773 if not b && not (null source_unchanged) -- sanity
1774 then do run_something "Touching object file"
1775 ("touch " ++ o_file)
1777 else do -- carry on...
1780 let stub_h = basename ++ "_stub.h"
1781 let stub_c = basename ++ "_stub.c"
1783 -- copy .h_stub file into current dir if present
1784 b <- doesFileExist tmp_stub_h
1786 run_something "Copy stub .h file"
1787 ("cp " ++ tmp_stub_h ++ ' ':stub_h)
1789 -- #include <..._stub.h> in .hc file
1790 addCmdlineHCInclude tmp_stub_h -- hack
1792 -- copy the _stub.c file into the current dir
1793 run_something "Copy stub .c file"
1795 "rm -f", stub_c, "&&",
1796 "echo \'#include \""++stub_h++"\"\' >"++stub_c, " &&",
1797 "cat", tmp_stub_c, ">> ", stub_c
1800 -- compile the _stub.c file w/ gcc
1801 pipeline <- genPipeline (StopBefore Ln) "" stub_c
1802 run_pipeline pipeline stub_c False{-no linking-}
1803 False{-no -o option-}
1804 (basename++"_stub") "c"
1806 add ld_inputs (basename++"_stub.o")
1810 -----------------------------------------------------------------------------
1813 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
1814 -- way too many hacks, and I can't say I've ever used it anyway.
1816 run_phase cc_phase _basename _suff input_fn output_fn
1817 | cc_phase == Cc || cc_phase == HCc
1818 = do cc <- readIORef pgm_c
1819 cc_opts <- (getOpts opt_c)
1820 cmdline_include_dirs <- readIORef include_paths
1822 let hcc = cc_phase == HCc
1824 -- add package include paths even if we're just compiling
1825 -- .c files; this is the Value Add(TM) that using
1826 -- ghc instead of gcc gives you :)
1827 pkg_include_dirs <- getPackageIncludePath
1828 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
1829 ++ pkg_include_dirs)
1831 c_includes <- getPackageCIncludes
1832 cmdline_includes <- readState cmdline_hc_includes -- -#include options
1834 let cc_injects | hcc = unlines (map mk_include
1835 (c_includes ++ reverse cmdline_includes))
1839 '"':_{-"-} -> "#include "++h_file
1840 '<':_ -> "#include "++h_file
1841 _ -> "#include \""++h_file++"\""
1843 cc_help <- newTempName "c"
1844 add files_to_clean cc_help
1845 h <- openFile cc_help WriteMode
1846 hPutStr h cc_injects
1847 hPutStrLn h ("#include \"" ++ input_fn ++ "\"\n")
1850 ccout <- newTempName "ccout"
1851 add files_to_clean ccout
1853 mangle <- readIORef do_asm_mangling
1854 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
1858 o2 <- readIORef opt_minus_o2_for_C
1859 let opt_flag | o2 = "-O2"
1862 pkg_extra_cc_opts <- getPackageExtraCcOpts
1864 excessPrecision <- readState excess_precision
1866 run_something "C Compiler"
1867 (unwords ([ cc, "-x", "c", cc_help, "-o", output_fn ]
1869 ++ (if cc_phase == HCc && mangle
1870 then md_regd_c_flags
1872 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
1873 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
1875 #ifdef mingw32_TARGET_OS
1878 ++ (if excessPrecision then [] else [ "-ffloat-store" ])
1880 ++ pkg_extra_cc_opts
1885 -- ToDo: postprocess the output from gcc
1887 -----------------------------------------------------------------------------
1890 run_phase Mangle _basename _suff input_fn output_fn
1891 = do mangler <- readIORef pgm_m
1892 mangler_opts <- getOpts opt_m
1894 if (prefixMatch "i386" cTARGETPLATFORM)
1895 then do n_regs <- readState stolen_x86_regs
1896 return [ show n_regs ]
1898 run_something "Assembly Mangler"
1901 ++ [ input_fn, output_fn ]
1906 -----------------------------------------------------------------------------
1909 run_phase SplitMangle _basename _suff input_fn _output_fn
1910 = do splitter <- readIORef pgm_s
1912 -- this is the prefix used for the split .s files
1913 tmp_pfx <- readIORef tmpdir
1915 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
1916 writeIORef split_prefix split_s_prefix
1917 add files_to_clean (split_s_prefix ++ "__*") -- d:-)
1919 -- allocate a tmp file to put the no. of split .s files in (sigh)
1920 n_files <- newTempName "n_files"
1921 add files_to_clean n_files
1923 run_something "Split Assembly File"
1930 -- save the number of split files for future references
1931 s <- readFile n_files
1932 let n = read s :: Int
1933 writeIORef n_split_files n
1936 -----------------------------------------------------------------------------
1939 run_phase As _basename _suff input_fn output_fn
1940 = do as <- readIORef pgm_a
1941 as_opts <- getOpts opt_a
1943 cmdline_include_paths <- readIORef include_paths
1944 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
1945 run_something "Assembler"
1946 (unwords (as : as_opts
1947 ++ cmdline_include_flags
1948 ++ [ "-c", input_fn, "-o", output_fn ]
1952 run_phase SplitAs basename _suff _input_fn _output_fn
1953 = do as <- readIORef pgm_a
1954 as_opts <- getOpts opt_a
1956 split_s_prefix <- readIORef split_prefix
1957 n <- readIORef n_split_files
1959 odir <- readIORef output_dir
1960 let real_odir = case odir of
1964 let assemble_file n = do
1965 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
1966 let output_o = newdir real_odir
1967 (basename ++ "__" ++ show n ++ ".o")
1968 real_o <- osuf_ify output_o
1969 run_something "Assembler"
1970 (unwords (as : as_opts
1971 ++ [ "-c", "-o", real_o, input_s ]
1974 mapM_ assemble_file [1..n]
1977 -----------------------------------------------------------------------------
1980 do_link :: [String] -> IO ()
1981 do_link o_files = do
1982 ln <- readIORef pgm_l
1984 o_file <- readIORef output_file
1985 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
1987 pkg_lib_paths <- getPackageLibraryPath
1988 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
1990 lib_paths <- readIORef library_paths
1991 let lib_path_opts = map ("-L"++) lib_paths
1993 pkg_libs <- getPackageLibraries
1994 let pkg_lib_opts = map (\lib -> "-l"++lib) pkg_libs
1996 libs <- readIORef cmdline_libraries
1997 let lib_opts = map ("-l"++) (reverse libs)
1998 -- reverse because they're added in reverse order from the cmd line
2000 pkg_extra_ld_opts <- getPackageExtraLdOpts
2002 -- probably _stub.o files
2003 extra_ld_inputs <- readIORef ld_inputs
2005 -- opts from -optl-<blah>
2006 extra_ld_opts <- getOpts opt_l
2008 run_something "Linker"
2010 ([ ln, verb, "-o", output_fn ]
2015 ++ pkg_lib_path_opts
2017 ++ pkg_extra_ld_opts
2022 -----------------------------------------------------------------------------
2023 -- Running an external program
2025 run_something phase_name cmd
2027 verb <- readIORef verbose
2035 n <- readIORef dry_run
2039 #ifndef mingw32_TARGET_OS
2040 exit_code <- system cmd `catchAllIO`
2041 (\_ -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
2043 tmp <- newTempName "sh"
2044 h <- openFile tmp WriteMode
2047 exit_code <- system ("sh - " ++ tmp) `catchAllIO`
2048 (\e -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
2052 if exit_code /= ExitSuccess
2053 then throwDyn (PhaseFailed phase_name exit_code)
2054 else do when verb (putStr "\n")
2057 -----------------------------------------------------------------------------
2061 = NoArg (IO ()) -- flag with no argument
2062 | HasArg (String -> IO ()) -- flag has an argument (maybe prefix)
2063 | SepArg (String -> IO ()) -- flag has a separate argument
2064 | Prefix (String -> IO ()) -- flag is a prefix only
2065 | OptPrefix (String -> IO ()) -- flag may be a prefix
2066 | AnySuffix (String -> IO ()) -- flag is a prefix, pass whole arg to fn
2067 | PassFlag (String -> IO ()) -- flag with no arg, pass flag to fn
2069 -- note that ordering is important in the following list: any flag which
2070 -- is a prefix flag (i.e. HasArg, Prefix, OptPrefix, AnySuffix) will override
2071 -- flags further down the list with the same prefix.
2074 [ ------- help -------------------------------------------------------
2075 ( "?" , NoArg long_usage)
2076 , ( "-help" , NoArg long_usage)
2079 ------- version ----------------------------------------------------
2080 , ( "-version" , NoArg (do hPutStrLn stdout (cProjectName
2081 ++ ", version " ++ version_str)
2082 exitWith ExitSuccess))
2083 , ( "-numeric-version", NoArg (do hPutStrLn stdout version_str
2084 exitWith ExitSuccess))
2086 ------- verbosity ----------------------------------------------------
2087 , ( "v" , NoArg (writeIORef verbose True) )
2088 , ( "n" , NoArg (writeIORef dry_run True) )
2090 ------- recompilation checker --------------------------------------
2091 , ( "recomp" , NoArg (writeIORef recomp True) )
2092 , ( "no-recomp" , NoArg (writeIORef recomp False) )
2094 ------- ways --------------------------------------------------------
2095 , ( "prof" , NoArg (addNoDups ways WayProf) )
2096 , ( "unreg" , NoArg (addNoDups ways WayUnreg) )
2097 , ( "dll" , NoArg (addNoDups ways WayDll) )
2098 , ( "ticky" , NoArg (addNoDups ways WayTicky) )
2099 , ( "parallel" , NoArg (addNoDups ways WayPar) )
2100 , ( "gransim" , NoArg (addNoDups ways WayGran) )
2101 , ( "smp" , NoArg (addNoDups ways WaySMP) )
2102 , ( "debug" , NoArg (addNoDups ways WayDebug) )
2105 ------- Interface files ---------------------------------------------
2106 , ( "hi" , NoArg (writeIORef produceHi True) )
2107 , ( "nohi" , NoArg (writeIORef produceHi False) )
2108 , ( "hi-diffs" , NoArg (writeIORef hi_diffs NormalHiDiffs) )
2109 , ( "no-hi-diffs" , NoArg (writeIORef hi_diffs NoHiDiffs) )
2110 , ( "hi-diffs-with-usages" , NoArg (writeIORef hi_diffs UsageHiDiffs) )
2111 , ( "keep-hi-diffs" , NoArg (writeIORef keep_hi_diffs True) )
2112 --"hi-with-*" -> hiw <- readIORef hi_with (ToDo)
2114 --------- Profiling --------------------------------------------------
2115 , ( "auto-dicts" , NoArg (addOpt_C "-fauto-sccs-on-dicts") )
2116 , ( "auto-all" , NoArg (addOpt_C "-fauto-sccs-on-all-toplevs") )
2117 , ( "auto" , NoArg (addOpt_C "-fauto-sccs-on-exported-toplevs") )
2118 , ( "caf-all" , NoArg (addOpt_C "-fauto-sccs-on-individual-cafs") )
2119 -- "ignore-sccs" doesn't work (ToDo)
2121 , ( "no-auto-dicts" , NoArg (addAntiOpt_C "-fauto-sccs-on-dicts") )
2122 , ( "no-auto-all" , NoArg (addAntiOpt_C "-fauto-sccs-on-all-toplevs") )
2123 , ( "no-auto" , NoArg (addAntiOpt_C "-fauto-sccs-on-exported-toplevs") )
2124 , ( "no-caf-all" , NoArg (addAntiOpt_C "-fauto-sccs-on-individual-cafs") )
2126 ------- Miscellaneous -----------------------------------------------
2127 , ( "cpp" , NoArg (updateState (\s -> s{ cpp_flag = True })) )
2128 , ( "#include" , HasArg (addCmdlineHCInclude) )
2129 , ( "no-link-chk" , NoArg (return ()) ) -- ignored for backwards compat
2131 ------- Output Redirection ------------------------------------------
2132 , ( "odir" , HasArg (writeIORef output_dir . Just) )
2133 , ( "o" , SepArg (writeIORef output_file . Just) )
2134 , ( "osuf" , HasArg (writeIORef output_suf . Just) )
2135 , ( "hisuf" , HasArg (writeIORef hi_suf) )
2136 , ( "tmpdir" , HasArg (writeIORef tmpdir . (++ "/")) )
2137 , ( "ohi" , HasArg (\s -> case s of
2138 "-" -> writeIORef hi_on_stdout True
2139 _ -> writeIORef output_hi (Just s)) )
2142 , ( "keep-hc-file" , AnySuffix (\_ -> writeIORef keep_hc_files True) )
2143 , ( "keep-s-file" , AnySuffix (\_ -> writeIORef keep_s_files True) )
2144 , ( "keep-raw-s-file", AnySuffix (\_ -> writeIORef keep_raw_s_files True) )
2145 , ( "keep-tmp-files" , AnySuffix (\_ -> writeIORef keep_tmp_files True) )
2147 , ( "split-objs" , NoArg (if can_split
2148 then do writeIORef split_object_files True
2149 addOpt_C "-fglobalise-toplev-names"
2150 addOpt_c "-DUSE_SPLIT_MARKERS"
2151 else hPutStrLn stderr
2152 "warning: don't know how to split \
2153 \object files on this architecture"
2156 ------- Include/Import Paths ----------------------------------------
2157 , ( "i" , OptPrefix (addToDirList import_paths) )
2158 , ( "I" , Prefix (addToDirList include_paths) )
2160 ------- Libraries ---------------------------------------------------
2161 , ( "L" , Prefix (addToDirList library_paths) )
2162 , ( "l" , Prefix (add cmdline_libraries) )
2164 ------- Packages ----------------------------------------------------
2165 , ( "package-name" , HasArg (\s -> addOpt_C ("-inpackage="++s)) )
2167 , ( "package" , HasArg (addPackage) )
2168 , ( "syslib" , HasArg (addPackage) ) -- for compatibility w/ old vsns
2170 , ( "-list-packages" , NoArg (listPackages) )
2171 , ( "-add-package" , NoArg (newPackage) )
2172 , ( "-delete-package" , SepArg (deletePackage) )
2174 ------- Specific phases --------------------------------------------
2175 , ( "pgmL" , HasArg (writeIORef pgm_L) )
2176 , ( "pgmP" , HasArg (writeIORef pgm_P) )
2177 , ( "pgmC" , HasArg (writeIORef pgm_C) )
2178 , ( "pgmc" , HasArg (writeIORef pgm_c) )
2179 , ( "pgmm" , HasArg (writeIORef pgm_m) )
2180 , ( "pgms" , HasArg (writeIORef pgm_s) )
2181 , ( "pgma" , HasArg (writeIORef pgm_a) )
2182 , ( "pgml" , HasArg (writeIORef pgm_l) )
2184 , ( "optdep" , HasArg (addOpt_dep) )
2185 , ( "optL" , HasArg (addOpt_L) )
2186 , ( "optP" , HasArg (addOpt_P) )
2187 , ( "optC" , HasArg (addOpt_C) )
2188 , ( "optc" , HasArg (addOpt_c) )
2189 , ( "optm" , HasArg (addOpt_m) )
2190 , ( "opta" , HasArg (addOpt_a) )
2191 , ( "optl" , HasArg (addOpt_l) )
2192 , ( "optdll" , HasArg (addOpt_dll) )
2194 ------ HsCpp opts ---------------------------------------------------
2195 , ( "D" , Prefix (\s -> addOpt_P ("-D'"++s++"'") ) )
2196 , ( "U" , Prefix (\s -> addOpt_P ("-U'"++s++"'") ) )
2198 ------ Warning opts -------------------------------------------------
2199 , ( "W" , NoArg (updateState (\s -> s{ warning_opt = W_ })))
2200 , ( "Wall" , NoArg (updateState (\s -> s{ warning_opt = W_all })))
2201 , ( "Wnot" , NoArg (updateState (\s -> s{ warning_opt = W_not })))
2202 , ( "w" , NoArg (updateState (\s -> s{ warning_opt = W_not })))
2204 ----- Linker --------------------------------------------------------
2205 , ( "static" , NoArg (writeIORef static True) )
2207 ------ Compiler RTS options -----------------------------------------
2208 , ( "H" , HasArg (newHeapSize . decodeSize) )
2209 , ( "K" , HasArg (newStackSize . decodeSize) )
2210 , ( "Rscale-sizes" , HasArg (floatOpt scale_sizes_by) )
2212 ------ Debugging ----------------------------------------------------
2213 , ( "dstg-stats" , NoArg (writeIORef opt_StgStats True) )
2215 , ( "dno-" , Prefix (\s -> addAntiOpt_C ("-d"++s)) )
2216 , ( "d" , AnySuffix (addOpt_C) )
2218 ------ Machine dependant (-m<blah>) stuff ---------------------------
2220 , ( "monly-2-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 2}) ))
2221 , ( "monly-3-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 3}) ))
2222 , ( "monly-4-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 4}) ))
2224 ------ Compiler flags -----------------------------------------------
2225 , ( "O2-for-C" , NoArg (writeIORef opt_minus_o2_for_C True) )
2226 , ( "O" , OptPrefix (setOptLevel) )
2228 , ( "fglasgow-exts-no-lang", NoArg ( do addOpt_C "-fglasgow-exts") )
2230 , ( "fglasgow-exts" , NoArg (do addOpt_C "-fglasgow-exts"
2233 , ( "fasm" , OptPrefix (\_ -> writeIORef hsc_lang HscAsm) )
2235 , ( "fvia-c" , NoArg (writeIORef hsc_lang HscC) )
2236 , ( "fvia-C" , NoArg (writeIORef hsc_lang HscC) )
2238 , ( "fno-asm-mangling" , NoArg (writeIORef do_asm_mangling False) )
2240 , ( "fmax-simplifier-iterations",
2241 Prefix (writeIORef opt_MaxSimplifierIterations . read) )
2243 , ( "fusagesp" , NoArg (do writeIORef opt_UsageSPInf True
2244 addOpt_C "-fusagesp-on") )
2246 , ( "fexcess-precision" , NoArg (do updateState
2247 (\s -> s{ excess_precision = True })
2248 addOpt_C "-fexcess-precision"))
2250 -- flags that are "active negatives"
2251 , ( "fno-implicit-prelude" , PassFlag (addOpt_C) )
2252 , ( "fno-prune-tydecls" , PassFlag (addOpt_C) )
2253 , ( "fno-prune-instdecls" , PassFlag (addOpt_C) )
2254 , ( "fno-pre-inlining" , PassFlag (addOpt_C) )
2256 -- All other "-fno-<blah>" options cancel out "-f<blah>" on the hsc cmdline
2257 , ( "fno-", Prefix (\s -> addAntiOpt_C ("-f"++s)) )
2259 -- Pass all remaining "-f<blah>" options to hsc
2260 , ( "f", AnySuffix (addOpt_C) )
2263 -----------------------------------------------------------------------------
2264 -- Process command-line
2266 processArgs :: [(String,OptKind)] -> [String] -> [String]
2267 -> IO [String] -- returns spare args
2268 processArgs _spec [] spare = return (reverse spare)
2269 processArgs spec args@(('-':_):_) spare = do
2270 args' <- processOneArg spec args
2271 processArgs spec args' spare
2272 processArgs spec (arg:args) spare =
2273 processArgs spec args (arg:spare)
2275 processOneArg :: [(String,OptKind)] -> [String] -> IO [String]
2276 processOneArg spec (('-':arg):args) = do
2277 let (rest,action) = findArg spec arg
2283 then io >> return args
2284 else unknownFlagErr dash_arg
2288 then fio rest >> return args
2290 [] -> unknownFlagErr dash_arg
2291 (arg1:args1) -> fio arg1 >> return args1
2295 [] -> unknownFlagErr dash_arg
2296 (arg1:args1) -> fio arg1 >> return args1
2300 then fio rest >> return args
2301 else unknownFlagErr dash_arg
2303 OptPrefix fio -> fio rest >> return args
2305 AnySuffix fio -> fio ('-':arg) >> return args
2309 then unknownFlagErr dash_arg
2310 else fio ('-':arg) >> return args
2312 findArg :: [(String,OptKind)] -> String -> (String,OptKind)
2314 = case [ (remove_spaces rest, k) | (pat,k) <- spec,
2315 Just rest <- [my_prefix_match pat arg],
2316 is_prefix k || null rest ] of
2317 [] -> unknownFlagErr ('-':arg)
2320 is_prefix (NoArg _) = False
2321 is_prefix (SepArg _) = False
2322 is_prefix (PassFlag _) = False
2325 -----------------------------------------------------------------------------
2326 -- convert sizes like "3.5M" into integers
2328 decodeSize :: String -> Integer
2330 | c == "" = truncate n
2331 | c == "K" || c == "k" = truncate (n * 1000)
2332 | c == "M" || c == "m" = truncate (n * 1000 * 1000)
2333 | c == "G" || c == "g" = truncate (n * 1000 * 1000 * 1000)
2334 | otherwise = throwDyn (OtherError ("can't decode size: " ++ str))
2335 where (m, c) = span pred str
2336 n = read m :: Double
2337 pred c = isDigit c || c == '.'
2339 floatOpt :: IORef Double -> String -> IO ()
2341 = writeIORef ref (read str :: Double)
2343 -----------------------------------------------------------------------------
2344 -- Finding files in the installation
2346 GLOBAL_VAR(topDir, clibdir, String)
2348 -- grab the last -B option on the command line, and
2349 -- set topDir to its value.
2350 setTopDir :: [String] -> IO [String]
2352 let (minusbs, others) = partition (prefixMatch "-B") args
2354 [] -> writeIORef topDir clibdir
2355 some -> writeIORef topDir (drop 2 (last some)))
2358 findFile name alt_path = unsafePerformIO (do
2359 top_dir <- readIORef topDir
2360 let installed_file = top_dir ++ '/':name
2361 let inplace_file = top_dir ++ '/':cCURRENT_DIR ++ '/':alt_path
2362 b <- doesFileExist inplace_file
2363 if b then return inplace_file
2364 else return installed_file
2367 -----------------------------------------------------------------------------
2370 my_partition :: (a -> Maybe b) -> [a] -> ([(a,b)],[a])
2371 my_partition _ [] = ([],[])
2372 my_partition p (a:as)
2373 = let (bs,cs) = my_partition p as in
2375 Nothing -> (bs,a:cs)
2376 Just b -> ((a,b):bs,cs)
2378 my_prefix_match :: String -> String -> Maybe String
2379 my_prefix_match [] rest = Just rest
2380 my_prefix_match (_:_) [] = Nothing
2381 my_prefix_match (p:pat) (r:rest)
2382 | p == r = my_prefix_match pat rest
2383 | otherwise = Nothing
2385 prefixMatch :: Eq a => [a] -> [a] -> Bool
2386 prefixMatch [] _str = True
2387 prefixMatch _pat [] = False
2388 prefixMatch (p:ps) (s:ss) | p == s = prefixMatch ps ss
2391 postfixMatch :: String -> String -> Bool
2392 postfixMatch pat str = prefixMatch (reverse pat) (reverse str)
2394 later = flip finally
2396 my_catchDyn = flip catchDyn
2398 splitFilename :: String -> (String,String)
2399 splitFilename f = (reverse (stripDot rev_basename), reverse rev_ext)
2400 where (rev_ext, rev_basename) = span ('.' /=) (reverse f)
2401 stripDot ('.':xs) = xs
2404 suffixOf :: String -> String
2405 suffixOf s = drop_longest_prefix s '.'
2407 split :: Char -> String -> [String]
2408 split c s = case rest of
2410 _:rest -> chunk : split c rest
2411 where (chunk, rest) = break (==c) s
2413 add :: IORef [a] -> a -> IO ()
2416 writeIORef var (x:xs)
2418 addNoDups :: Eq a => IORef [a] -> a -> IO ()
2419 addNoDups var x = do
2421 unless (x `elem` xs) $ writeIORef var (x:xs)
2423 remove_suffix :: Char -> String -> String
2425 | null pre = reverse suf
2426 | otherwise = reverse pre
2427 where (suf,pre) = break (==c) (reverse s)
2429 drop_longest_prefix :: String -> Char -> String
2430 drop_longest_prefix s c = reverse suf
2431 where (suf,_pre) = break (==c) (reverse s)
2433 take_longest_prefix :: String -> Char -> String
2434 take_longest_prefix s c = reverse pre
2435 where (_suf,pre) = break (==c) (reverse s)
2437 newsuf :: String -> String -> String
2438 newsuf suf s = remove_suffix '.' s ++ suf
2440 -- getdir strips the filename off the input string, returning the directory.
2441 getdir :: String -> String
2442 getdir s = if null dir then "." else init dir
2443 where dir = take_longest_prefix s '/'
2445 newdir :: String -> String -> String
2446 newdir dir s = dir ++ '/':drop_longest_prefix s '/'
2448 remove_spaces :: String -> String
2449 remove_spaces = reverse . dropWhile isSpace . reverse . dropWhile isSpace
2451 -----------------------------------------------------------------------------
2452 -- compatibility code
2454 #if __GLASGOW_HASKELL__ <= 408
2456 ioErrors = justIoErrors
2459 #ifdef mingw32_TARGET_OS
2460 foreign import "_getpid" getProcessID :: IO Int