1 {-# OPTIONS -W -fno-warn-incomplete-patterns #-}
2 -----------------------------------------------------------------------------
3 -- $Id: Main.hs,v 1.57 2000/09/07 16:31:45 simonpj 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
329 GLOBAL_VAR(hsc_lang, if cGhcWithNativeCodeGen == "YES" &&
330 (prefixMatch "i386" cTARGETPLATFORM ||
331 prefixMatch "sparc" cTARGETPLATFORM)
336 GLOBAL_VAR(output_dir, Nothing, Maybe String)
337 GLOBAL_VAR(output_suf, Nothing, Maybe String)
338 GLOBAL_VAR(output_file, Nothing, Maybe String)
339 GLOBAL_VAR(output_hi, Nothing, Maybe String)
341 GLOBAL_VAR(ld_inputs, [], [String])
343 odir_ify :: String -> IO String
345 odir_opt <- readIORef output_dir
348 Just d -> return (newdir d f)
350 osuf_ify :: String -> IO String
352 osuf_opt <- readIORef output_suf
355 Just s -> return (newsuf s f)
357 -----------------------------------------------------------------------------
360 GLOBAL_VAR(produceHi, True, Bool)
361 GLOBAL_VAR(hi_on_stdout, False, Bool)
362 GLOBAL_VAR(hi_with, "", String)
363 GLOBAL_VAR(hi_suf, "hi", String)
365 data HiDiffFlag = NormalHiDiffs | UsageHiDiffs | NoHiDiffs
366 GLOBAL_VAR(hi_diffs, NoHiDiffs, HiDiffFlag)
368 -----------------------------------------------------------------------------
369 -- Warnings & sanity checking
371 -- Warning packages that are controlled by -W and -Wall. The 'standard'
372 -- warnings that you get all the time are
374 -- -fwarn-overlapping-patterns
375 -- -fwarn-missing-methods
376 -- -fwarn-missing-fields
377 -- -fwarn-deprecations
378 -- -fwarn-duplicate-exports
380 -- these are turned off by -Wnot.
382 standardWarnings = [ "-fwarn-overlapping-patterns"
383 , "-fwarn-missing-methods"
384 , "-fwarn-missing-fields"
385 , "-fwarn-deprecations"
386 , "-fwarn-duplicate-exports"
388 minusWOpts = standardWarnings ++
389 [ "-fwarn-unused-binds"
390 , "-fwarn-unused-matches"
391 , "-fwarn-incomplete-patterns"
392 , "-fwarn-unused-imports"
394 minusWallOpts = minusWOpts ++
395 [ "-fwarn-type-defaults"
396 , "-fwarn-name-shadowing"
397 , "-fwarn-missing-signatures"
400 data WarningState = W_default | W_ | W_all | W_not
402 -----------------------------------------------------------------------------
403 -- Compiler optimisation options
405 GLOBAL_VAR(opt_level, 0, Int)
407 setOptLevel :: String -> IO ()
408 setOptLevel "" = do { writeIORef opt_level 1; go_via_C }
409 setOptLevel "not" = writeIORef opt_level 0
410 setOptLevel [c] | isDigit c = do
411 let level = ord c - ord '0'
412 writeIORef opt_level level
413 when (level >= 1) go_via_C
414 setOptLevel s = unknownFlagErr ("-O"++s)
417 l <- readIORef hsc_lang
418 case l of { HscAsm -> writeIORef hsc_lang HscC;
419 _other -> return () }
421 GLOBAL_VAR(opt_minus_o2_for_C, False, Bool)
423 GLOBAL_VAR(opt_MaxSimplifierIterations, 4, Int)
424 GLOBAL_VAR(opt_StgStats, False, Bool)
425 GLOBAL_VAR(opt_UsageSPInf, False, Bool) -- Off by default
427 hsc_minusO2_flags = hsc_minusO_flags -- for now
429 hsc_minusNoO_flags = do
430 iter <- readIORef opt_MaxSimplifierIterations
432 "-fignore-interface-pragmas",
433 "-fomit-interface-pragmas",
436 "-fmax-simplifier-iterations" ++ show iter,
440 hsc_minusO_flags = do
441 iter <- readIORef opt_MaxSimplifierIterations
442 usageSP <- readIORef opt_UsageSPInf
443 stgstats <- readIORef opt_StgStats
448 "-fdo-eta-reduction",
449 "-fdo-lambda-eta-expansion",
454 -- initial simplify: mk specialiser happy: minimum effort please
459 -- Don't inline anything till full laziness has bitten
460 -- In particular, inlining wrappers inhibits floating
461 -- e.g. ...(case f x of ...)...
462 -- ==> ...(case (case x of I# x# -> fw x#) of ...)...
463 -- ==> ...(case x of I# x# -> case fw x# of ...)...
464 -- and now the redex (f x) isn't floatable any more
467 -- Similarly, don't apply any rules until after full
468 -- laziness. Notably, list fusion can prevent floating.
471 -- Don't do case-of-case transformations.
472 -- This makes full laziness work better
474 "-fmax-simplifier-iterations2",
477 -- Specialisation is best done before full laziness
478 -- so that overloaded functions have all their dictionary lambdas manifest
487 -- Want to run with inline phase 1 after the specialiser to give
488 -- maximum chance for fusion to work before we inline build/augment
489 -- in phase 2. This made a difference in 'ansi' where an
490 -- overloaded function wasn't inlined till too late.
491 "-fmax-simplifier-iterations" ++ show iter,
494 -- infer usage information here in case we need it later.
495 -- (add more of these where you need them --KSW 1999-04)
496 if usageSP then "-fusagesp" else "",
500 -- Need inline-phase2 here so that build/augment get
501 -- inlined. I found that spectral/hartel/genfft lost some useful
502 -- strictness in the function sumcode' if augment is not inlined
503 -- before strictness analysis runs
506 "-fmax-simplifier-iterations2",
512 "-fmax-simplifier-iterations2",
513 -- No -finline-phase: allow all Ids to be inlined now
514 -- This gets foldr inlined before strictness analysis
524 "-fmax-simplifier-iterations" ++ show iter,
525 -- No -finline-phase: allow all Ids to be inlined now
529 -- nofib/spectral/hartel/wang doubles in speed if you
530 -- do full laziness late in the day. It only happens
531 -- after fusion and other stuff, so the early pass doesn't
532 -- catch it. For the record, the redex is
533 -- f_el22 (f_el21 r_midblock)
535 -- Leave out lambda lifting for now
536 -- "-fsimplify", -- Tidy up results of full laziness
538 -- "-fmax-simplifier-iterations2",
540 -- "-ffloat-outwards-full",
542 -- We want CSE to follow the final full-laziness pass, because it may
543 -- succeed in commoning up things floated out by full laziness.
545 -- CSE must immediately follow a simplification pass, because it relies
546 -- on the no-shadowing invariant. See comments at the top of CSE.lhs
547 -- So it must NOT follow float-inwards, which can give rise to shadowing,
548 -- even if its input doesn't have shadows. Hence putting it between
555 -- Case-liberation for -O2. This should be after
556 -- strictness analysis and the simplification which follows it.
558 -- ( ($OptLevel != 2)
560 -- : "-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 ]" ),
562 -- "-fliberate-case",
564 -- Final clean-up simplification:
567 "-fmax-simplifier-iterations" ++ show iter,
568 -- No -finline-phase: allow all Ids to be inlined now
573 -----------------------------------------------------------------------------
576 split_marker = ':' -- not configurable (ToDo)
578 import_paths, include_paths, library_paths :: IORef [String]
579 GLOBAL_VAR(import_paths, ["."], [String])
580 GLOBAL_VAR(include_paths, ["."], [String])
581 GLOBAL_VAR(library_paths, [], [String])
583 GLOBAL_VAR(cmdline_libraries, [], [String])
585 addToDirList :: IORef [String] -> String -> IO ()
586 addToDirList ref path
587 = do paths <- readIORef ref
588 writeIORef ref (paths ++ split split_marker path)
590 -----------------------------------------------------------------------------
593 GLOBAL_VAR(package_config, (findFile "package.conf" (cGHC_DRIVER_DIR++"/package.conf.inplace")), String)
595 listPackages :: IO ()
597 details <- readIORef package_details
598 hPutStr stdout (listPkgs details)
605 details <- readIORef package_details
606 hPutStr stdout "Reading package info from stdin... "
608 let new_pkg = read stuff :: (String,Package)
610 (\_ -> throwDyn (OtherError "parse error in package info"))
611 hPutStrLn stdout "done."
612 if (fst new_pkg `elem` map fst details)
613 then throwDyn (OtherError ("package `" ++ fst new_pkg ++
614 "' already installed"))
616 conf_file <- readIORef package_config
617 savePackageConfig conf_file
618 maybeRestoreOldConfig conf_file $ do
619 writeNewConfig conf_file ( ++ [new_pkg])
622 deletePackage :: String -> IO ()
623 deletePackage pkg = do
625 details <- readIORef package_details
626 if (pkg `notElem` map fst details)
627 then throwDyn (OtherError ("package `" ++ pkg ++ "' not installed"))
629 conf_file <- readIORef package_config
630 savePackageConfig conf_file
631 maybeRestoreOldConfig conf_file $ do
632 writeNewConfig conf_file (filter ((/= pkg) . fst))
635 checkConfigAccess :: IO ()
636 checkConfigAccess = do
637 conf_file <- readIORef package_config
638 access <- getPermissions conf_file
639 unless (writable access)
640 (throwDyn (OtherError "you don't have permission to modify the package configuration file"))
642 maybeRestoreOldConfig :: String -> IO () -> IO ()
643 maybeRestoreOldConfig conf_file io
644 = catchAllIO io (\e -> do
645 hPutStr stdout "\nWARNING: an error was encountered while the new \n\
646 \configuration was being written. Attempting to \n\
647 \restore the old configuration... "
648 system ("cp " ++ conf_file ++ ".old " ++ conf_file)
649 hPutStrLn stdout "done."
653 writeNewConfig :: String -> ([(String,Package)] -> [(String,Package)]) -> IO ()
654 writeNewConfig conf_file fn = do
655 hPutStr stdout "Writing new package config file... "
656 old_details <- readIORef package_details
657 h <- openFile conf_file WriteMode
658 hPutStr h (dumpPackages (fn old_details))
660 hPutStrLn stdout "done."
662 savePackageConfig :: String -> IO ()
663 savePackageConfig conf_file = do
664 hPutStr stdout "Saving old package config file... "
665 -- mv rather than cp because we've already done an hGetContents
666 -- on this file so we won't be able to open it for writing
667 -- unless we move the old one out of the way...
668 system ("mv " ++ conf_file ++ " " ++ conf_file ++ ".old")
669 hPutStrLn stdout "done."
671 -- package list is maintained in dependency order
672 packages = global ["std", "rts", "gmp"] :: IORef [String]
673 -- comma in value, so can't use macro, grrr
674 {-# NOINLINE packages #-}
676 addPackage :: String -> IO ()
678 = do pkg_details <- readIORef package_details
679 case lookup package pkg_details of
680 Nothing -> throwDyn (OtherError ("unknown package name: " ++ package))
682 ps <- readIORef packages
683 unless (package `elem` ps) $ do
684 mapM_ addPackage (package_deps details)
685 ps <- readIORef packages
686 writeIORef packages (package:ps)
688 getPackageImportPath :: IO [String]
689 getPackageImportPath = do
690 ps <- readIORef packages
691 ps' <- getPackageDetails ps
692 return (nub (concat (map import_dirs ps')))
694 getPackageIncludePath :: IO [String]
695 getPackageIncludePath = do
696 ps <- readIORef packages
697 ps' <- getPackageDetails ps
698 return (nub (filter (not.null) (concatMap include_dirs ps')))
700 -- includes are in reverse dependency order (i.e. rts first)
701 getPackageCIncludes :: IO [String]
702 getPackageCIncludes = do
703 ps <- readIORef packages
704 ps' <- getPackageDetails ps
705 return (reverse (nub (filter (not.null) (concatMap c_includes ps'))))
707 getPackageLibraryPath :: IO [String]
708 getPackageLibraryPath = do
709 ps <- readIORef packages
710 ps' <- getPackageDetails ps
711 return (nub (concat (map library_dirs ps')))
713 getPackageLibraries :: IO [String]
714 getPackageLibraries = do
715 ps <- readIORef packages
716 ps' <- getPackageDetails ps
717 tag <- readIORef build_tag
718 let suffix = if null tag then "" else '_':tag
720 map (\p -> map (++suffix) (hs_libraries p) ++ extra_libraries p) ps'
723 getPackageExtraGhcOpts :: IO [String]
724 getPackageExtraGhcOpts = do
725 ps <- readIORef packages
726 ps' <- getPackageDetails ps
727 return (concatMap extra_ghc_opts ps')
729 getPackageExtraCcOpts :: IO [String]
730 getPackageExtraCcOpts = do
731 ps <- readIORef packages
732 ps' <- getPackageDetails ps
733 return (concatMap extra_cc_opts ps')
735 getPackageExtraLdOpts :: IO [String]
736 getPackageExtraLdOpts = do
737 ps <- readIORef packages
738 ps' <- getPackageDetails ps
739 return (concatMap extra_ld_opts ps')
741 getPackageDetails :: [String] -> IO [Package]
742 getPackageDetails ps = do
743 pkg_details <- readIORef package_details
744 return [ pkg | p <- ps, Just pkg <- [ lookup p pkg_details ] ]
746 GLOBAL_VAR(package_details, (error "package_details"), [(String,Package)])
748 -----------------------------------------------------------------------------
751 -- The central concept of a "way" is that all objects in a given
752 -- program must be compiled in the same "way". Certain options change
753 -- parameters of the virtual machine, eg. profiling adds an extra word
754 -- to the object header, so profiling objects cannot be linked with
755 -- non-profiling objects.
757 -- After parsing the command-line options, we determine which "way" we
758 -- are building - this might be a combination way, eg. profiling+ticky-ticky.
760 -- We then find the "build-tag" associated with this way, and this
761 -- becomes the suffix used to find .hi files and libraries used in
764 GLOBAL_VAR(build_tag, "", String)
794 GLOBAL_VAR(ways, [] ,[WayName])
796 -- ToDo: allow WayDll with any other allowed combination
798 allowed_combinations =
799 [ [WayProf,WayUnreg],
800 [WayProf,WaySMP] -- works???
803 findBuildTag :: IO [String] -- new options
805 way_names <- readIORef ways
806 case sort way_names of
807 [] -> do writeIORef build_tag ""
810 [w] -> do let details = lkupWay w
811 writeIORef build_tag (wayTag details)
812 return (wayOpts details)
814 ws -> if ws `notElem` allowed_combinations
815 then throwDyn (OtherError $
816 "combination not supported: " ++
817 foldr1 (\a b -> a ++ '/':b)
818 (map (wayName . lkupWay) ws))
819 else let stuff = map lkupWay ws
820 tag = concat (map wayTag stuff)
821 flags = map wayOpts stuff
823 writeIORef build_tag tag
824 return (concat flags)
827 case lookup w way_details of
828 Nothing -> error "findBuildTag"
829 Just details -> details
837 way_details :: [ (WayName, Way) ]
839 [ (WayProf, Way "p" "Profiling"
845 (WayTicky, Way "t" "Ticky-ticky Profiling"
848 , "-optc-DTICKY_TICKY"
851 (WayUnreg, Way "u" "Unregisterised"
853 , "-optc-DUSE_MINIINTERPRETER"
854 , "-fno-asm-mangling"
858 (WayDll, Way "dll" "DLLized"
861 (WayPar, Way "mp" "Parallel"
864 , "-D__PARALLEL_HASKELL__"
866 , "-package concurrent"
869 (WayGran, Way "mg" "Gransim"
874 , "-package concurrent"
877 (WaySMP, Way "s" "SMP"
884 (WayUser_a, Way "a" "User way 'a'" ["$WAY_a_REAL_OPTS"]),
885 (WayUser_b, Way "b" "User way 'b'" ["$WAY_b_REAL_OPTS"]),
886 (WayUser_c, Way "c" "User way 'c'" ["$WAY_c_REAL_OPTS"]),
887 (WayUser_d, Way "d" "User way 'd'" ["$WAY_d_REAL_OPTS"]),
888 (WayUser_e, Way "e" "User way 'e'" ["$WAY_e_REAL_OPTS"]),
889 (WayUser_f, Way "f" "User way 'f'" ["$WAY_f_REAL_OPTS"]),
890 (WayUser_g, Way "g" "User way 'g'" ["$WAY_g_REAL_OPTS"]),
891 (WayUser_h, Way "h" "User way 'h'" ["$WAY_h_REAL_OPTS"]),
892 (WayUser_i, Way "i" "User way 'i'" ["$WAY_i_REAL_OPTS"]),
893 (WayUser_j, Way "j" "User way 'j'" ["$WAY_j_REAL_OPTS"]),
894 (WayUser_k, Way "k" "User way 'k'" ["$WAY_k_REAL_OPTS"]),
895 (WayUser_l, Way "l" "User way 'l'" ["$WAY_l_REAL_OPTS"]),
896 (WayUser_m, Way "m" "User way 'm'" ["$WAY_m_REAL_OPTS"]),
897 (WayUser_n, Way "n" "User way 'n'" ["$WAY_n_REAL_OPTS"]),
898 (WayUser_o, Way "o" "User way 'o'" ["$WAY_o_REAL_OPTS"]),
899 (WayUser_A, Way "A" "User way 'A'" ["$WAY_A_REAL_OPTS"]),
900 (WayUser_B, Way "B" "User way 'B'" ["$WAY_B_REAL_OPTS"])
903 -----------------------------------------------------------------------------
904 -- Programs for particular phases
906 GLOBAL_VAR(pgm_L, findFile "unlit" cGHC_UNLIT, String)
907 GLOBAL_VAR(pgm_P, cRAWCPP, String)
908 GLOBAL_VAR(pgm_C, findFile "hsc" cGHC_HSC, String)
909 GLOBAL_VAR(pgm_c, cGCC, String)
910 GLOBAL_VAR(pgm_m, findFile "ghc-asm" cGHC_MANGLER, String)
911 GLOBAL_VAR(pgm_s, findFile "ghc-split" cGHC_SPLIT, String)
912 GLOBAL_VAR(pgm_a, cGCC, String)
913 GLOBAL_VAR(pgm_l, cGCC, String)
915 -----------------------------------------------------------------------------
916 -- Via-C compilation stuff
918 -- flags returned are: ( all C compilations
919 -- , registerised HC compilations
923 | prefixMatch "alpha" cTARGETPLATFORM
924 = return ( ["-static"], [] )
926 | prefixMatch "hppa" cTARGETPLATFORM
927 -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
928 -- (very nice, but too bad the HP /usr/include files don't agree.)
929 = return ( ["-static", "-D_HPUX_SOURCE"], [] )
931 | prefixMatch "m68k" cTARGETPLATFORM
932 -- -fno-defer-pop : for the .hc files, we want all the pushing/
933 -- popping of args to routines to be explicit; if we let things
934 -- be deferred 'til after an STGJUMP, imminent death is certain!
936 -- -fomit-frame-pointer : *don't*
937 -- It's better to have a6 completely tied up being a frame pointer
938 -- rather than let GCC pick random things to do with it.
939 -- (If we want to steal a6, then we would try to do things
940 -- as on iX86, where we *do* steal the frame pointer [%ebp].)
941 = return ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] )
943 | prefixMatch "i386" cTARGETPLATFORM
944 -- -fno-defer-pop : basically the same game as for m68k
946 -- -fomit-frame-pointer : *must* in .hc files; because we're stealing
947 -- the fp (%ebp) for our register maps.
948 = do n_regs <- readState stolen_x86_regs
949 sta <- readIORef static
950 return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else "" ],
951 [ "-fno-defer-pop", "-fomit-frame-pointer",
952 "-DSTOLEN_X86_REGS="++show n_regs ]
955 | prefixMatch "mips" cTARGETPLATFORM
956 = return ( ["static"], [] )
958 | prefixMatch "powerpc" cTARGETPLATFORM || prefixMatch "rs6000" cTARGETPLATFORM
959 = return ( ["static"], ["-finhibit-size-directive"] )
964 -----------------------------------------------------------------------------
965 -- Build the Hsc command line
967 build_hsc_opts :: IO [String]
969 opt_C_ <- getOpts opt_C -- misc hsc opts
972 warn_level <- readState warning_opt
973 let warn_opts = case warn_level of
974 W_default -> standardWarnings
976 W_all -> minusWallOpts
980 minus_o <- readIORef opt_level
983 0 -> hsc_minusNoO_flags
984 1 -> hsc_minusO_flags
985 2 -> hsc_minusO2_flags
986 _ -> error "unknown opt level"
990 ways_ <- readIORef ways
991 let stg_massage | WayProf `elem` ways_ = "-fmassage-stg-for-profiling"
994 stg_stats <- readIORef opt_StgStats
995 let stg_stats_flag | stg_stats = "-dstg-stats"
998 let stg_opts = [ stg_massage, stg_stats_flag, "-flet-no-escape" ]
999 -- let-no-escape always on for now
1002 let hi_vers = "-fhi-version="++cProjectVersionInt
1003 static <- (do s <- readIORef static; if s then return "-static" else return "")
1005 l <- readIORef hsc_lang
1006 let lang = case l of
1008 HscAsm -> "-olang=asm"
1009 HscJava -> "-olang=java"
1011 -- get hi-file suffix
1012 hisuf <- readIORef hi_suf
1014 -- hi-suffix for packages depends on the build tag.
1016 do tag <- readIORef build_tag
1019 else return (tag ++ "_hi")
1021 import_dirs <- readIORef import_paths
1022 package_import_dirs <- getPackageImportPath
1024 let hi_map = "-himap=" ++
1025 makeHiMap import_dirs hisuf
1026 package_import_dirs package_hisuf
1029 hi_map_sep = "-himap-sep=" ++ [split_marker]
1031 scale <- readIORef scale_sizes_by
1032 heap <- readState specific_heap_size
1033 stack <- readState specific_stack_size
1034 cmdline_rts_opts <- getOpts opt_Crts
1035 let heap' = truncate (fromIntegral heap * scale) :: Integer
1036 stack' = truncate (fromIntegral stack * scale) :: Integer
1037 rts_opts = [ "+RTS", "-H"++show heap', "-K"++show stack' ]
1038 ++ cmdline_rts_opts ++ [ "-RTS" ]
1040 -- take into account -fno-* flags by removing the equivalent -f*
1041 -- flag from our list.
1042 anti_flags <- getOpts anti_opt_C
1043 let basic_opts = opt_C_ ++ warn_opts ++ optimisation_opts ++ stg_opts
1044 filtered_opts = filter (`notElem` anti_flags) basic_opts
1049 -- ToDo: C stub files
1050 ++ [ hi_vers, static, verb, lang, hi_map, hi_map_sep ]
1055 (import_dirs :: [String])
1056 (hi_suffix :: String)
1057 (package_import_dirs :: [String])
1058 (package_hi_suffix :: String)
1059 (split_marker :: Char)
1060 = foldr (add_dir hi_suffix)
1061 (foldr (add_dir package_hi_suffix) "" package_import_dirs)
1064 add_dir hisuf dir str = dir ++ "%." ++ hisuf ++ split_marker : str
1067 getOptionsFromSource
1068 :: String -- input file
1069 -> IO [String] -- options, if any
1070 getOptionsFromSource file
1071 = do h <- openFile file ReadMode
1072 catchJust ioErrors (look h)
1073 (\e -> if isEOFError e then return [] else ioError e)
1078 () | null l -> look h
1079 | prefixMatch "#" l -> look h
1080 | prefixMatch "{-# LINE" l -> look h -- -}
1081 | Just (opts:_) <- matchRegex optionRegex l
1082 -> return (words opts)
1083 | otherwise -> return []
1085 optionRegex = mkRegex "\\{-#[ \t]+OPTIONS[ \t]+(.*)#-\\}" -- -}
1087 -----------------------------------------------------------------------------
1090 get_source_files :: [String] -> ([String],[String])
1091 get_source_files = partition (('-' /=) . head)
1094 -- all error messages are propagated as exceptions
1095 my_catchDyn (\dyn -> case dyn of
1096 PhaseFailed _phase code -> exitWith code
1097 Interrupted -> exitWith (ExitFailure 1)
1098 _ -> do hPutStrLn stderr (show (dyn :: BarfKind))
1099 exitWith (ExitFailure 1)
1102 later cleanTempFiles $
1103 -- exceptions will be blocked while we clean the temporary files,
1104 -- so there shouldn't be any difficulty if we receive further
1108 -- install signal handlers
1109 main_thread <- myThreadId
1111 #ifndef mingw32_TARGET_OS
1112 let sig_handler = Catch (raiseInThread main_thread
1113 (DynException (toDyn Interrupted)))
1114 installHandler sigQUIT sig_handler Nothing
1115 installHandler sigINT sig_handler Nothing
1119 writeIORef prog_name pgm
1123 -- grab any -B options from the command line first
1124 argv' <- setTopDir argv
1126 -- check whether TMPDIR is set in the environment
1127 IO.try (do dir <- getEnv "TMPDIR" -- fails if not set
1128 writeIORef tmpdir dir)
1130 -- read the package configuration
1131 conf_file <- readIORef package_config
1132 contents <- readFile conf_file
1133 writeIORef package_details (read contents)
1135 -- find the phase to stop after (i.e. -E, -C, -c, -S flags)
1136 (flags2, todo, stop_flag) <- getToDo argv'
1138 -- process all the other arguments, and get the source files
1139 srcs <- processArgs driver_opts flags2 []
1141 -- find the build tag, and re-process the build-specific options
1142 more_opts <- findBuildTag
1143 _ <- processArgs driver_opts more_opts []
1146 verb <- readIORef verbose
1148 when verb (hPutStrLn stderr ("Using package config file: " ++ conf_file))
1150 -- mkdependHS is special
1151 when (todo == DoMkDependHS) beginMkDependHS
1153 -- for each source file, find which phases to run
1154 pipelines <- mapM (genPipeline todo stop_flag) srcs
1155 let src_pipelines = zip srcs pipelines
1157 o_file <- readIORef output_file
1158 if isJust o_file && todo /= DoLink && length srcs > 1
1159 then throwDyn (UsageError "can't apply -o option to multiple source files")
1162 if null srcs then throwDyn (UsageError "no input files") else do
1164 -- save the flag state, because this could be modified by OPTIONS pragmas
1165 -- during the compilation, and we'll need to restore it before starting
1166 -- the next compilation.
1167 saved_driver_state <- readIORef driver_state
1169 let compileFile (src, phases) = do
1170 r <- run_pipeline phases src (todo==DoLink) True orig_base orig_suff
1171 writeIORef driver_state saved_driver_state
1173 where (orig_base, orig_suff) = splitFilename src
1175 o_files <- mapM compileFile src_pipelines
1177 when (todo == DoMkDependHS) endMkDependHS
1179 when (todo == DoLink) (do_link o_files)
1182 -----------------------------------------------------------------------------
1183 -- Which phase to stop at
1185 data ToDo = DoMkDependHS | DoMkDLL | StopBefore Phase | DoLink
1188 todoFlag :: String -> Maybe ToDo
1189 todoFlag "-M" = Just $ DoMkDependHS
1190 todoFlag "-E" = Just $ StopBefore Hsc
1191 todoFlag "-C" = Just $ StopBefore HCc
1192 todoFlag "-S" = Just $ StopBefore As
1193 todoFlag "-c" = Just $ StopBefore Ln
1194 todoFlag _ = Nothing
1197 -> IO ( [String] -- rest of command line
1198 , ToDo -- phase to stop at
1199 , String -- "stop at" flag
1202 = case my_partition todoFlag flags of
1203 ([] , rest) -> return (rest, DoLink, "") -- default is to do linking
1204 ([(flag,one)], rest) -> return (rest, one, flag)
1206 throwDyn (OtherError "only one of the flags -M, -E, -C, -S, -c is allowed")
1208 -----------------------------------------------------------------------------
1211 -- Herein is all the magic about which phases to run in which order, whether
1212 -- the intermediate files should be in /tmp or in the current directory,
1213 -- what the suffix of the intermediate files should be, etc.
1215 -- The following compilation pipeline algorithm is fairly hacky. A
1216 -- better way to do this would be to express the whole comilation as a
1217 -- data flow DAG, where the nodes are the intermediate files and the
1218 -- edges are the compilation phases. This framework would also work
1219 -- nicely if a haskell dependency generator was included in the
1222 -- It would also deal much more cleanly with compilation phases that
1223 -- generate multiple intermediates, (eg. hsc generates .hc, .hi, and
1224 -- possibly stub files), where some of the output files need to be
1225 -- processed further (eg. the stub files need to be compiled by the C
1228 -- A cool thing to do would then be to execute the data flow graph
1229 -- concurrently, automatically taking advantage of extra processors on
1230 -- the host machine. For example, when compiling two Haskell files
1231 -- where one depends on the other, the data flow graph would determine
1232 -- that the C compiler from the first comilation can be overlapped
1233 -- with the hsc comilation for the second file.
1235 data IntermediateFileType
1240 -- the first compilation phase for a given file is determined
1242 startPhase "lhs" = Unlit
1243 startPhase "hs" = Cpp
1244 startPhase "hc" = HCc
1246 startPhase "raw_s" = Mangle
1250 startPhase _ = Ln -- all unknown file types
1253 :: ToDo -- when to stop
1254 -> String -- "stop after" flag (for error messages)
1255 -> String -- original filename
1256 -> IO [ -- list of phases to run for this file
1258 IntermediateFileType, -- keep the output from this phase?
1259 String) -- output file suffix
1262 genPipeline todo stop_flag filename
1264 split <- readIORef split_object_files
1265 mangle <- readIORef do_asm_mangling
1266 lang <- readIORef hsc_lang
1267 keep_hc <- readIORef keep_hc_files
1268 keep_raw_s <- readIORef keep_raw_s_files
1269 keep_s <- readIORef keep_s_files
1272 ----------- ----- ---- --- -- -- - - -
1273 start_phase = startPhase suffix
1275 (_basename, suffix) = splitFilename filename
1277 haskell_ish_file = suffix `elem` [ "hs", "lhs", "hc" ]
1278 c_ish_file = suffix `elem` [ "c", "s", "S" ] -- maybe .cc et al.??
1280 -- hack for .hc files
1281 real_lang | suffix == "hc" = HscC
1285 | todo == DoMkDependHS = [ Unlit, Cpp, MkDependHS ]
1287 | haskell_ish_file =
1289 HscC | split && mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle,
1290 SplitMangle, SplitAs ]
1291 | mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle, As ]
1292 | split -> not_valid
1293 | otherwise -> [ Unlit, Cpp, Hsc, HCc, As ]
1295 HscAsm | split -> [ Unlit, Cpp, Hsc, SplitMangle, SplitAs ]
1296 | otherwise -> [ Unlit, Cpp, Hsc, As ]
1298 HscJava | split -> not_valid
1299 | otherwise -> error "not implemented: compiling via Java"
1301 | c_ish_file = [ Cc, As ]
1303 | otherwise = [ ] -- just pass this file through to the linker
1305 -- ToDo: this is somewhat cryptic
1306 not_valid = throwDyn (OtherError ("invalid option combination"))
1307 ----------- ----- ---- --- -- -- - - -
1309 -- this shouldn't happen.
1310 if start_phase /= Ln && start_phase `notElem` pipeline
1311 then throwDyn (OtherError ("can't find starting phase for "
1315 -- if we can't find the phase we're supposed to stop before,
1316 -- something has gone wrong.
1320 && phase `notElem` pipeline
1321 && not (phase == As && SplitAs `elem` pipeline)) $
1322 throwDyn (OtherError
1323 ("flag " ++ stop_flag
1324 ++ " is incompatible with source file `" ++ filename ++ "'"))
1328 ----------- ----- ---- --- -- -- - - -
1330 :: [Phase] -- raw pipeline
1331 -> Phase -- phase to stop before
1332 -> [(Phase, IntermediateFileType, String{-file extension-})]
1333 annotatePipeline [] _ = []
1334 annotatePipeline (Ln:_) _ = []
1335 annotatePipeline (phase:next_phase:ps) stop =
1336 (phase, keep_this_output, phase_input_ext next_phase)
1337 : annotatePipeline (next_phase:ps) stop
1340 | next_phase == stop = Persistent
1344 Mangle | keep_raw_s -> Persistent
1345 As | keep_s -> Persistent
1346 HCc | keep_hc -> Persistent
1349 -- add information about output files to the pipeline
1350 -- the suffix on an output file is determined by the next phase
1351 -- in the pipeline, so we add linking to the end of the pipeline
1352 -- to force the output from the final phase to be a .o file.
1353 stop_phase = case todo of StopBefore phase -> phase
1356 annotated_pipeline = annotatePipeline (pipeline ++ [ Ln ]) stop_phase
1358 phase_ne p (p1,_,_) = (p1 /= p)
1359 ----------- ----- ---- --- -- -- - - -
1362 dropWhile (phase_ne start_phase) .
1363 foldr (\p ps -> if phase_ne stop_phase p then p:ps else []) []
1364 $ annotated_pipeline
1368 -- the output suffix for a given phase is uniquely determined by
1369 -- the input requirements of the next phase.
1370 phase_input_ext Unlit = "lhs"
1371 phase_input_ext Cpp = "lpp"
1372 phase_input_ext Hsc = "cpp"
1373 phase_input_ext HCc = "hc"
1374 phase_input_ext Cc = "c"
1375 phase_input_ext Mangle = "raw_s"
1376 phase_input_ext SplitMangle = "split_s" -- not really generated
1377 phase_input_ext As = "s"
1378 phase_input_ext SplitAs = "split_s" -- not really generated
1379 phase_input_ext Ln = "o"
1380 phase_input_ext MkDependHS = "dep"
1383 :: [ (Phase, IntermediateFileType, String) ] -- phases to run
1384 -> String -- input file
1385 -> Bool -- doing linking afterward?
1386 -> Bool -- take into account -o when generating output?
1387 -> String -- original basename (eg. Main)
1388 -> String -- original suffix (eg. hs)
1389 -> IO String -- return final filename
1391 run_pipeline [] input_fn _ _ _ _ = return input_fn
1392 run_pipeline ((phase, keep, o_suffix):phases)
1393 input_fn do_linking use_ofile orig_basename orig_suffix
1397 (if null phases && not do_linking && use_ofile
1398 then do o_file <- readIORef output_file
1402 f <- odir_ify (orig_basename ++ '.':o_suffix)
1405 else if keep == Persistent
1406 then odir_ify (orig_basename ++ '.':o_suffix)
1407 else do filename <- newTempName o_suffix
1408 add files_to_clean filename
1412 run_phase phase orig_basename orig_suffix input_fn output_fn
1414 -- sadly, ghc -E is supposed to write the file to stdout. We
1415 -- generate <file>.cpp, so we also have to cat the file here.
1416 when (null phases && phase == Cpp) $
1417 run_something "Dump pre-processed file to stdout"
1418 ("cat " ++ output_fn)
1420 run_pipeline phases output_fn do_linking use_ofile orig_basename orig_suffix
1423 -- find a temporary name that doesn't already exist.
1424 newTempName :: String -> IO String
1425 newTempName extn = do
1427 tmp_dir <- readIORef tmpdir
1428 findTempName tmp_dir x
1429 where findTempName tmp_dir x = do
1430 let filename = tmp_dir ++ "/ghc" ++ show x ++ '.':extn
1431 b <- doesFileExist filename
1432 if b then findTempName tmp_dir (x+1)
1433 else return filename
1435 -------------------------------------------------------------------------------
1439 GLOBAL_VAR(dep_makefile, "Makefile", String);
1440 GLOBAL_VAR(dep_include_prelude, False, Bool);
1441 GLOBAL_VAR(dep_ignore_dirs, [], [String]);
1442 GLOBAL_VAR(dep_suffixes, [], [String]);
1443 GLOBAL_VAR(dep_warnings, True, Bool);
1446 GLOBAL_VAR(dep_makefile_hdl, error "dep_makefile_hdl", Maybe Handle);
1447 GLOBAL_VAR(dep_tmp_file, error "dep_tmp_file", String);
1448 GLOBAL_VAR(dep_tmp_hdl, error "dep_tmp_hdl", Handle);
1449 GLOBAL_VAR(dep_dir_contents, error "dep_dir_contents", [(String,[String])]);
1451 depStartMarker = "# DO NOT DELETE: Beginning of Haskell dependencies"
1452 depEndMarker = "# DO NOT DELETE: End of Haskell dependencies"
1454 -- for compatibility with the old mkDependHS, we accept options of the form
1455 -- -optdep-f -optdep.depend, etc.
1457 ( "s", SepArg (add dep_suffixes) ),
1458 ( "f", SepArg (writeIORef dep_makefile) ),
1459 ( "w", NoArg (writeIORef dep_warnings False) ),
1460 ( "-include-prelude", NoArg (writeIORef dep_include_prelude True) ),
1461 ( "X", Prefix (addToDirList dep_ignore_dirs) ),
1462 ( "-exclude-directory=", Prefix (addToDirList dep_ignore_dirs) )
1465 beginMkDependHS :: IO ()
1466 beginMkDependHS = do
1468 -- slurp in the mkdependHS-style options
1469 flags <- getOpts opt_dep
1470 _ <- processArgs dep_opts flags []
1472 -- open a new temp file in which to stuff the dependency info
1474 dep_file <- newTempName "dep"
1475 add files_to_clean dep_file
1476 writeIORef dep_tmp_file dep_file
1477 tmp_hdl <- openFile dep_file WriteMode
1478 writeIORef dep_tmp_hdl tmp_hdl
1480 -- open the makefile
1481 makefile <- readIORef dep_makefile
1482 exists <- doesFileExist makefile
1485 writeIORef dep_makefile_hdl Nothing
1489 makefile_hdl <- openFile makefile ReadMode
1490 writeIORef dep_makefile_hdl (Just makefile_hdl)
1492 -- slurp through until we get the magic start string,
1493 -- copying the contents into dep_makefile
1495 l <- hGetLine makefile_hdl
1496 if (l == depStartMarker)
1498 else do hPutStrLn tmp_hdl l; slurp
1500 -- slurp through until we get the magic end marker,
1501 -- throwing away the contents
1503 l <- hGetLine makefile_hdl
1504 if (l == depEndMarker)
1508 catchJust ioErrors slurp
1509 (\e -> if isEOFError e then return () else ioError e)
1510 catchJust ioErrors chuck
1511 (\e -> if isEOFError e then return () else ioError e)
1514 -- write the magic marker into the tmp file
1515 hPutStrLn tmp_hdl depStartMarker
1517 -- cache the contents of all the import directories, for future
1519 import_dirs <- readIORef import_paths
1520 pkg_import_dirs <- getPackageImportPath
1521 import_dir_contents <- mapM getDirectoryContents import_dirs
1522 pkg_import_dir_contents <- mapM getDirectoryContents pkg_import_dirs
1523 writeIORef dep_dir_contents
1524 (zip import_dirs import_dir_contents ++
1525 zip pkg_import_dirs pkg_import_dir_contents)
1527 -- ignore packages unless --include-prelude is on
1528 include_prelude <- readIORef dep_include_prelude
1529 when (not include_prelude) $
1530 mapM_ (add dep_ignore_dirs) pkg_import_dirs
1535 endMkDependHS :: IO ()
1537 makefile <- readIORef dep_makefile
1538 makefile_hdl <- readIORef dep_makefile_hdl
1539 tmp_file <- readIORef dep_tmp_file
1540 tmp_hdl <- readIORef dep_tmp_hdl
1542 -- write the magic marker into the tmp file
1543 hPutStrLn tmp_hdl depEndMarker
1545 case makefile_hdl of
1546 Nothing -> return ()
1549 -- slurp the rest of the orignal makefile and copy it into the output
1555 catchJust ioErrors slurp
1556 (\e -> if isEOFError e then return () else ioError e)
1560 hClose tmp_hdl -- make sure it's flushed
1562 -- create a backup of the original makefile
1563 when (isJust makefile_hdl) $
1564 run_something ("Backing up " ++ makefile)
1565 (unwords [ "cp", makefile, makefile++".bak" ])
1567 -- copy the new makefile in place
1568 run_something "Installing new makefile"
1569 (unwords [ "cp", tmp_file, makefile ])
1572 findDependency :: String -> Import -> IO (Maybe (String, Bool))
1573 findDependency mod imp = do
1574 dir_contents <- readIORef dep_dir_contents
1575 ignore_dirs <- readIORef dep_ignore_dirs
1576 hisuf <- readIORef hi_suf
1579 (imp_mod, is_source) =
1581 Normal str -> (str, False)
1582 Source str -> (str, True )
1584 imp_hi = imp_mod ++ '.':hisuf
1585 imp_hiboot = imp_mod ++ ".hi-boot"
1586 imp_hiboot_v = imp_mod ++ ".hi-boot-" ++ cHscIfaceFileVersion
1587 imp_hs = imp_mod ++ ".hs"
1588 imp_lhs = imp_mod ++ ".lhs"
1590 deps | is_source = [ imp_hiboot_v, imp_hiboot, imp_hs, imp_lhs ]
1591 | otherwise = [ imp_hi, imp_hs, imp_lhs ]
1593 search [] = throwDyn (OtherError ("can't find one of the following: " ++
1594 unwords (map (\d -> '`': d ++ "'") deps) ++
1595 " (imported from `" ++ mod ++ "')"))
1596 search ((dir, contents) : dirs)
1597 | null present = search dirs
1599 if dir `elem` ignore_dirs
1602 then if dep /= imp_hiboot_v
1603 then return (Just (dir++'/':imp_hiboot, False))
1604 else return (Just (dir++'/':dep, False))
1605 else return (Just (dir++'/':imp_hi, not is_source))
1607 present = filter (`elem` contents) deps
1614 -------------------------------------------------------------------------------
1617 run_phase Unlit _basename _suff input_fn output_fn
1618 = do unlit <- readIORef pgm_L
1619 unlit_flags <- getOpts opt_L
1620 run_something "Literate pre-processor"
1621 ("echo '# 1 \"" ++input_fn++"\"' > "++output_fn++" && "
1622 ++ unlit ++ ' ':input_fn ++ " - >> " ++ output_fn)
1624 -------------------------------------------------------------------------------
1627 run_phase Cpp _basename _suff input_fn output_fn
1628 = do src_opts <- getOptionsFromSource input_fn
1629 -- ToDo: this is *wrong* if we're processing more than one file:
1630 -- the OPTIONS will persist through the subsequent compilations.
1631 _ <- processArgs driver_opts src_opts []
1633 do_cpp <- readState cpp_flag
1636 cpp <- readIORef pgm_P
1637 hscpp_opts <- getOpts opt_P
1638 hs_src_cpp_opts <- readIORef hs_source_cpp_opts
1640 cmdline_include_paths <- readIORef include_paths
1641 pkg_include_dirs <- getPackageIncludePath
1642 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
1643 ++ pkg_include_dirs)
1646 run_something "C pre-processor"
1648 (["echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}'", ">", output_fn, "&&",
1653 ++ [ "-x", "c", input_fn, ">>", output_fn ]
1656 run_something "Inefective C pre-processor"
1657 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}' > "
1658 ++ output_fn ++ " && cat " ++ input_fn
1659 ++ " >> " ++ output_fn)
1661 -----------------------------------------------------------------------------
1664 run_phase MkDependHS basename suff input_fn _output_fn = do
1665 src <- readFile input_fn
1666 let imports = getImports src
1668 deps <- mapM (findDependency basename) imports
1670 osuf_opt <- readIORef output_suf
1671 let osuf = case osuf_opt of
1675 extra_suffixes <- readIORef dep_suffixes
1676 let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
1677 ofiles = map (\suf -> basename ++ '.':suf) suffixes
1679 objs <- mapM odir_ify ofiles
1681 hdl <- readIORef dep_tmp_hdl
1683 -- std dependeny of the object(s) on the source file
1684 hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
1686 let genDep (dep, False {- not an hi file -}) =
1687 hPutStrLn hdl (unwords objs ++ " : " ++ dep)
1688 genDep (dep, True {- is an hi file -}) = do
1689 hisuf <- readIORef hi_suf
1690 let dep_base = remove_suffix '.' dep
1691 deps = (dep_base ++ hisuf)
1692 : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
1693 -- length objs should be == length deps
1694 sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
1696 mapM genDep [ d | Just d <- deps ]
1700 -- add the lines to dep_makefile:
1704 -- if the dependency is on something other than a .hi file:
1705 -- this.o this.p_o ... : dep
1707 -- if the import is {-# SOURCE #-}
1708 -- this.o this.p_o ... : dep.hi-boot[-$vers]
1711 -- this.o ... : dep.hi
1712 -- this.p_o ... : dep.p_hi
1715 -- (where .o is $osuf, and the other suffixes come from
1716 -- the cmdline -s options).
1718 -----------------------------------------------------------------------------
1721 run_phase Hsc basename _suff input_fn output_fn
1722 = do hsc <- readIORef pgm_C
1724 -- we add the current directory (i.e. the directory in which
1725 -- the .hs files resides) to the import path, since this is
1726 -- what gcc does, and it's probably what you want.
1727 let current_dir = getdir basename
1729 paths <- readIORef include_paths
1730 writeIORef include_paths (current_dir : paths)
1732 -- build the hsc command line
1733 hsc_opts <- build_hsc_opts
1735 doing_hi <- readIORef produceHi
1736 tmp_hi_file <- if doing_hi
1737 then do fn <- newTempName "hi"
1738 add files_to_clean fn
1742 -- deal with -Rghc-timing
1743 timing <- readIORef collect_ghc_timing
1744 stat_file <- newTempName "stat"
1745 add files_to_clean stat_file
1746 let stat_opts | timing = [ "+RTS", "-S"++stat_file, "-RTS" ]
1749 -- tmp files for foreign export stub code
1750 tmp_stub_h <- newTempName "stub_h"
1751 tmp_stub_c <- newTempName "stub_c"
1752 add files_to_clean tmp_stub_h
1753 add files_to_clean tmp_stub_c
1755 -- figure out where to put the .hi file
1756 ohi <- readIORef output_hi
1757 hisuf <- readIORef hi_suf
1758 let hi_flags = case ohi of
1759 Nothing -> [ "-hidir="++current_dir, "-hisuf="++hisuf ]
1760 Just fn -> [ "-hifile="++fn ]
1762 -- run the compiler!
1763 run_something "Haskell Compiler"
1764 (unwords (hsc : input_fn : (
1768 "-ofile="++output_fn,
1775 -- Generate -Rghc-timing info
1777 run_something "Generate timing stats"
1778 (findFile "ghc-stats" cGHC_STATS ++ ' ':stat_file)
1782 let stub_h = basename ++ "_stub.h"
1783 let stub_c = basename ++ "_stub.c"
1785 -- copy .h_stub file into current dir if present
1786 b <- doesFileExist tmp_stub_h
1788 run_something "Copy stub .h file"
1789 ("cp " ++ tmp_stub_h ++ ' ':stub_h)
1791 -- #include <..._stub.h> in .hc file
1792 addCmdlineHCInclude tmp_stub_h -- hack
1794 -- copy the _stub.c file into the current dir
1795 run_something "Copy stub .c file"
1797 "rm -f", stub_c, "&&",
1798 "echo \'#include \""++stub_h++"\"\' >"++stub_c, " &&",
1799 "cat", tmp_stub_c, ">> ", stub_c
1802 -- compile the _stub.c file w/ gcc
1803 pipeline <- genPipeline (StopBefore Ln) "" stub_c
1804 run_pipeline pipeline stub_c False{-no linking-}
1805 False{-no -o option-}
1806 (basename++"_stub") "c"
1808 add ld_inputs (basename++"_stub.o")
1811 -----------------------------------------------------------------------------
1814 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
1815 -- way too many hacks, and I can't say I've ever used it anyway.
1817 run_phase cc_phase _basename _suff input_fn output_fn
1818 | cc_phase == Cc || cc_phase == HCc
1819 = do cc <- readIORef pgm_c
1820 cc_opts <- (getOpts opt_c)
1821 cmdline_include_dirs <- readIORef include_paths
1823 let hcc = cc_phase == HCc
1825 -- add package include paths even if we're just compiling
1826 -- .c files; this is the Value Add(TM) that using
1827 -- ghc instead of gcc gives you :)
1828 pkg_include_dirs <- getPackageIncludePath
1829 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
1830 ++ pkg_include_dirs)
1832 c_includes <- getPackageCIncludes
1833 cmdline_includes <- readState cmdline_hc_includes -- -#include options
1835 let cc_injects | hcc = unlines (map mk_include
1836 (c_includes ++ reverse cmdline_includes))
1840 '"':_{-"-} -> "#include "++h_file
1841 '<':_ -> "#include "++h_file
1842 _ -> "#include \""++h_file++"\""
1844 cc_help <- newTempName "c"
1845 add files_to_clean cc_help
1846 h <- openFile cc_help WriteMode
1847 hPutStr h cc_injects
1848 hPutStrLn h ("#include \"" ++ input_fn ++ "\"\n")
1851 ccout <- newTempName "ccout"
1852 add files_to_clean ccout
1854 mangle <- readIORef do_asm_mangling
1855 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
1859 o2 <- readIORef opt_minus_o2_for_C
1860 let opt_flag | o2 = "-O2"
1863 pkg_extra_cc_opts <- getPackageExtraCcOpts
1865 excessPrecision <- readState excess_precision
1867 run_something "C Compiler"
1868 (unwords ([ cc, "-x", "c", cc_help, "-o", output_fn ]
1870 ++ (if cc_phase == HCc && mangle
1871 then md_regd_c_flags
1873 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
1874 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
1876 #ifdef mingw32_TARGET_OS
1879 ++ (if excessPrecision then [] else [ "-ffloat-store" ])
1881 ++ 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 ]
1905 -----------------------------------------------------------------------------
1908 run_phase SplitMangle _basename _suff input_fn _output_fn
1909 = do splitter <- readIORef pgm_s
1911 -- this is the prefix used for the split .s files
1912 tmp_pfx <- readIORef tmpdir
1914 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
1915 writeIORef split_prefix split_s_prefix
1916 add files_to_clean (split_s_prefix ++ "__*") -- d:-)
1918 -- allocate a tmp file to put the no. of split .s files in (sigh)
1919 n_files <- newTempName "n_files"
1920 add files_to_clean n_files
1922 run_something "Split Assembly File"
1929 -- save the number of split files for future references
1930 s <- readFile n_files
1931 let n = read s :: Int
1932 writeIORef n_split_files n
1934 -----------------------------------------------------------------------------
1937 run_phase As _basename _suff input_fn output_fn
1938 = do as <- readIORef pgm_a
1939 as_opts <- getOpts opt_a
1941 cmdline_include_paths <- readIORef include_paths
1942 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
1943 run_something "Assembler"
1944 (unwords (as : as_opts
1945 ++ cmdline_include_flags
1946 ++ [ "-c", input_fn, "-o", output_fn ]
1949 run_phase SplitAs basename _suff _input_fn _output_fn
1950 = do as <- readIORef pgm_a
1951 as_opts <- getOpts opt_a
1953 split_s_prefix <- readIORef split_prefix
1954 n <- readIORef n_split_files
1956 odir <- readIORef output_dir
1957 let real_odir = case odir of
1961 let assemble_file n = do
1962 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
1963 let output_o = newdir real_odir
1964 (basename ++ "__" ++ show n ++ ".o")
1965 real_o <- osuf_ify output_o
1966 run_something "Assembler"
1967 (unwords (as : as_opts
1968 ++ [ "-c", "-o", real_o, input_s ]
1971 mapM_ assemble_file [1..n]
1973 -----------------------------------------------------------------------------
1976 do_link :: [String] -> IO ()
1977 do_link o_files = do
1978 ln <- readIORef pgm_l
1980 o_file <- readIORef output_file
1981 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
1983 pkg_lib_paths <- getPackageLibraryPath
1984 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
1986 lib_paths <- readIORef library_paths
1987 let lib_path_opts = map ("-L"++) lib_paths
1989 pkg_libs <- getPackageLibraries
1990 let pkg_lib_opts = map (\lib -> "-l"++lib) pkg_libs
1992 libs <- readIORef cmdline_libraries
1993 let lib_opts = map ("-l"++) (reverse libs)
1994 -- reverse because they're added in reverse order from the cmd line
1996 pkg_extra_ld_opts <- getPackageExtraLdOpts
1998 -- probably _stub.o files
1999 extra_ld_inputs <- readIORef ld_inputs
2001 -- opts from -optl-<blah>
2002 extra_ld_opts <- getOpts opt_l
2004 run_something "Linker"
2006 ([ ln, verb, "-o", output_fn ]
2011 ++ pkg_lib_path_opts
2013 ++ pkg_extra_ld_opts
2018 -----------------------------------------------------------------------------
2019 -- Running an external program
2021 run_something phase_name cmd
2023 verb <- readIORef verbose
2031 n <- readIORef dry_run
2035 #ifndef mingw32_TARGET_OS
2036 exit_code <- system cmd `catchAllIO`
2037 (\_ -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
2039 tmp <- newTempName "sh"
2040 h <- openFile tmp WriteMode
2043 exit_code <- system ("sh - " ++ tmp) `catchAllIO`
2044 (\e -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
2048 if exit_code /= ExitSuccess
2049 then throwDyn (PhaseFailed phase_name exit_code)
2050 else do when verb (putStr "\n")
2053 -----------------------------------------------------------------------------
2057 = NoArg (IO ()) -- flag with no argument
2058 | HasArg (String -> IO ()) -- flag has an argument (maybe prefix)
2059 | SepArg (String -> IO ()) -- flag has a separate argument
2060 | Prefix (String -> IO ()) -- flag is a prefix only
2061 | OptPrefix (String -> IO ()) -- flag may be a prefix
2062 | AnySuffix (String -> IO ()) -- flag is a prefix, pass whole arg to fn
2063 | PassFlag (String -> IO ()) -- flag with no arg, pass flag to fn
2065 -- note that ordering is important in the following list: any flag which
2066 -- is a prefix flag (i.e. HasArg, Prefix, OptPrefix, AnySuffix) will override
2067 -- flags further down the list with the same prefix.
2070 [ ------- help -------------------------------------------------------
2071 ( "?" , NoArg long_usage)
2072 , ( "-help" , NoArg long_usage)
2075 ------- version ----------------------------------------------------
2076 , ( "-version" , NoArg (do hPutStrLn stdout (cProjectName
2077 ++ ", version " ++ version_str)
2078 exitWith ExitSuccess))
2079 , ( "-numeric-version", NoArg (do hPutStrLn stdout version_str
2080 exitWith ExitSuccess))
2082 ------- verbosity ----------------------------------------------------
2083 , ( "v" , NoArg (writeIORef verbose True) )
2084 , ( "n" , NoArg (writeIORef dry_run True) )
2086 ------- recompilation checker --------------------------------------
2087 , ( "recomp" , NoArg (writeIORef recomp True) )
2088 , ( "no-recomp" , NoArg (writeIORef recomp False) )
2090 ------- ways --------------------------------------------------------
2091 , ( "prof" , NoArg (addNoDups ways WayProf) )
2092 , ( "unreg" , NoArg (addNoDups ways WayUnreg) )
2093 , ( "dll" , NoArg (addNoDups ways WayDll) )
2094 , ( "ticky" , NoArg (addNoDups ways WayTicky) )
2095 , ( "parallel" , NoArg (addNoDups ways WayPar) )
2096 , ( "gransim" , NoArg (addNoDups ways WayGran) )
2097 , ( "smp" , NoArg (addNoDups ways WaySMP) )
2098 , ( "debug" , NoArg (addNoDups ways WayDebug) )
2101 ------- Interface files ---------------------------------------------
2102 , ( "hi" , NoArg (writeIORef produceHi True) )
2103 , ( "nohi" , NoArg (writeIORef produceHi False) )
2104 , ( "hi-diffs" , NoArg (writeIORef hi_diffs NormalHiDiffs) )
2105 , ( "no-hi-diffs" , NoArg (writeIORef hi_diffs NoHiDiffs) )
2106 , ( "hi-diffs-with-usages" , NoArg (writeIORef hi_diffs UsageHiDiffs) )
2107 , ( "keep-hi-diffs" , NoArg (writeIORef keep_hi_diffs True) )
2108 --"hi-with-*" -> hiw <- readIORef hi_with (ToDo)
2110 --------- Profiling --------------------------------------------------
2111 , ( "auto-dicts" , NoArg (addOpt_C "-fauto-sccs-on-dicts") )
2112 , ( "auto-all" , NoArg (addOpt_C "-fauto-sccs-on-all-toplevs") )
2113 , ( "auto" , NoArg (addOpt_C "-fauto-sccs-on-exported-toplevs") )
2114 , ( "caf-all" , NoArg (addOpt_C "-fauto-sccs-on-individual-cafs") )
2115 -- "ignore-sccs" doesn't work (ToDo)
2117 , ( "no-auto-dicts" , NoArg (addAntiOpt_C "-fauto-sccs-on-dicts") )
2118 , ( "no-auto-all" , NoArg (addAntiOpt_C "-fauto-sccs-on-all-toplevs") )
2119 , ( "no-auto" , NoArg (addAntiOpt_C "-fauto-sccs-on-exported-toplevs") )
2120 , ( "no-caf-all" , NoArg (addAntiOpt_C "-fauto-sccs-on-individual-cafs") )
2122 ------- Miscellaneous -----------------------------------------------
2123 , ( "cpp" , NoArg (updateState (\s -> s{ cpp_flag = True })) )
2124 , ( "#include" , HasArg (addCmdlineHCInclude) )
2125 , ( "no-link-chk" , NoArg (return ()) ) -- ignored for backwards compat
2127 ------- Output Redirection ------------------------------------------
2128 , ( "odir" , HasArg (writeIORef output_dir . Just) )
2129 , ( "o" , SepArg (writeIORef output_file . Just) )
2130 , ( "osuf" , HasArg (writeIORef output_suf . Just) )
2131 , ( "hisuf" , HasArg (writeIORef hi_suf) )
2132 , ( "tmpdir" , HasArg (writeIORef tmpdir . (++ "/")) )
2133 , ( "ohi" , HasArg (\s -> case s of
2134 "-" -> writeIORef hi_on_stdout True
2135 _ -> writeIORef output_hi (Just s)) )
2138 , ( "keep-hc-file" , AnySuffix (\_ -> writeIORef keep_hc_files True) )
2139 , ( "keep-s-file" , AnySuffix (\_ -> writeIORef keep_s_files True) )
2140 , ( "keep-raw-s-file", AnySuffix (\_ -> writeIORef keep_raw_s_files True) )
2141 , ( "keep-tmp-files" , AnySuffix (\_ -> writeIORef keep_tmp_files True) )
2143 , ( "split-objs" , NoArg (if can_split
2144 then do writeIORef split_object_files True
2145 addOpt_C "-fglobalise-toplev-names"
2146 addOpt_c "-DUSE_SPLIT_MARKERS"
2147 else hPutStrLn stderr
2148 "warning: don't know how to split \
2149 \object files on this architecture"
2152 ------- Include/Import Paths ----------------------------------------
2153 , ( "i" , OptPrefix (addToDirList import_paths) )
2154 , ( "I" , Prefix (addToDirList include_paths) )
2156 ------- Libraries ---------------------------------------------------
2157 , ( "L" , Prefix (addToDirList library_paths) )
2158 , ( "l" , Prefix (add cmdline_libraries) )
2160 ------- Packages ----------------------------------------------------
2161 , ( "package-name" , HasArg (\s -> addOpt_C ("-inpackage="++s)) )
2163 , ( "package" , HasArg (addPackage) )
2164 , ( "syslib" , HasArg (addPackage) ) -- for compatibility w/ old vsns
2166 , ( "-list-packages" , NoArg (listPackages) )
2167 , ( "-add-package" , NoArg (newPackage) )
2168 , ( "-delete-package" , SepArg (deletePackage) )
2170 ------- Specific phases --------------------------------------------
2171 , ( "pgmL" , HasArg (writeIORef pgm_L) )
2172 , ( "pgmP" , HasArg (writeIORef pgm_P) )
2173 , ( "pgmC" , HasArg (writeIORef pgm_C) )
2174 , ( "pgmc" , HasArg (writeIORef pgm_c) )
2175 , ( "pgmm" , HasArg (writeIORef pgm_m) )
2176 , ( "pgms" , HasArg (writeIORef pgm_s) )
2177 , ( "pgma" , HasArg (writeIORef pgm_a) )
2178 , ( "pgml" , HasArg (writeIORef pgm_l) )
2180 , ( "optdep" , HasArg (addOpt_dep) )
2181 , ( "optL" , HasArg (addOpt_L) )
2182 , ( "optP" , HasArg (addOpt_P) )
2183 , ( "optCrts" , HasArg (addOpt_Crts) )
2184 , ( "optC" , HasArg (addOpt_C) )
2185 , ( "optc" , HasArg (addOpt_c) )
2186 , ( "optm" , HasArg (addOpt_m) )
2187 , ( "opta" , HasArg (addOpt_a) )
2188 , ( "optl" , HasArg (addOpt_l) )
2189 , ( "optdll" , HasArg (addOpt_dll) )
2191 ------ HsCpp opts ---------------------------------------------------
2192 , ( "D" , Prefix (\s -> addOpt_P ("-D'"++s++"'") ) )
2193 , ( "U" , Prefix (\s -> addOpt_P ("-U'"++s++"'") ) )
2195 ------ Warning opts -------------------------------------------------
2196 , ( "W" , NoArg (updateState (\s -> s{ warning_opt = W_ })))
2197 , ( "Wall" , NoArg (updateState (\s -> s{ warning_opt = W_all })))
2198 , ( "Wnot" , NoArg (updateState (\s -> s{ warning_opt = W_not })))
2199 , ( "w" , NoArg (updateState (\s -> s{ warning_opt = W_not })))
2201 ----- Linker --------------------------------------------------------
2202 , ( "static" , NoArg (writeIORef static True) )
2204 ------ Compiler RTS options -----------------------------------------
2205 , ( "H" , HasArg (newHeapSize . decodeSize) )
2206 , ( "K" , HasArg (newStackSize . decodeSize) )
2207 , ( "Rscale-sizes" , HasArg (floatOpt scale_sizes_by) )
2208 , ( "Rghc-timing" , NoArg (writeIORef collect_ghc_timing True) )
2210 ------ Debugging ----------------------------------------------------
2211 , ( "dstg-stats" , NoArg (writeIORef opt_StgStats True) )
2213 , ( "dno-" , Prefix (\s -> addAntiOpt_C ("-d"++s)) )
2214 , ( "d" , AnySuffix (addOpt_C) )
2216 ------ Machine dependant (-m<blah>) stuff ---------------------------
2218 , ( "monly-2-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 2}) ))
2219 , ( "monly-3-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 3}) ))
2220 , ( "monly-4-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 4}) ))
2222 ------ Compiler flags -----------------------------------------------
2223 , ( "O2-for-C" , NoArg (writeIORef opt_minus_o2_for_C True) )
2224 , ( "O" , OptPrefix (setOptLevel) )
2226 , ( "fglasgow-exts-no-lang", NoArg ( do addOpt_C "-fglasgow-exts") )
2228 , ( "fglasgow-exts" , NoArg (do addOpt_C "-fglasgow-exts"
2231 , ( "fasm" , OptPrefix (\_ -> writeIORef hsc_lang HscAsm) )
2233 , ( "fvia-c" , NoArg (writeIORef hsc_lang HscC) )
2234 , ( "fvia-C" , NoArg (writeIORef hsc_lang HscC) )
2236 , ( "fno-asm-mangling" , NoArg (writeIORef do_asm_mangling False) )
2238 , ( "fmax-simplifier-iterations",
2239 Prefix (writeIORef opt_MaxSimplifierIterations . read) )
2241 , ( "fusagesp" , NoArg (do writeIORef opt_UsageSPInf True
2242 addOpt_C "-fusagesp-on") )
2244 , ( "fexcess-precision" , NoArg (do updateState
2245 (\s -> s{ excess_precision = True })
2246 addOpt_C "-fexcess-precision"))
2248 -- flags that are "active negatives"
2249 , ( "fno-implicit-prelude" , PassFlag (addOpt_C) )
2250 , ( "fno-prune-tydecls" , PassFlag (addOpt_C) )
2251 , ( "fno-prune-instdecls" , PassFlag (addOpt_C) )
2252 , ( "fno-pre-inlining" , PassFlag (addOpt_C) )
2254 -- All other "-fno-<blah>" options cancel out "-f<blah>" on the hsc cmdline
2255 , ( "fno-", Prefix (\s -> addAntiOpt_C ("-f"++s)) )
2257 -- Pass all remaining "-f<blah>" options to hsc
2258 , ( "f", AnySuffix (addOpt_C) )
2261 -----------------------------------------------------------------------------
2262 -- Process command-line
2264 processArgs :: [(String,OptKind)] -> [String] -> [String]
2265 -> IO [String] -- returns spare args
2266 processArgs _spec [] spare = return (reverse spare)
2267 processArgs spec args@(('-':_):_) spare = do
2268 args' <- processOneArg spec args
2269 processArgs spec args' spare
2270 processArgs spec (arg:args) spare =
2271 processArgs spec args (arg:spare)
2273 processOneArg :: [(String,OptKind)] -> [String] -> IO [String]
2274 processOneArg spec (('-':arg):args) = do
2275 let (rest,action) = findArg spec arg
2281 then io >> return args
2282 else unknownFlagErr dash_arg
2286 then fio rest >> return args
2288 [] -> unknownFlagErr dash_arg
2289 (arg1:args1) -> fio arg1 >> return args1
2293 [] -> unknownFlagErr dash_arg
2294 (arg1:args1) -> fio arg1 >> return args1
2298 then fio rest >> return args
2299 else unknownFlagErr dash_arg
2301 OptPrefix fio -> fio rest >> return args
2303 AnySuffix fio -> fio ('-':arg) >> return args
2307 then unknownFlagErr dash_arg
2308 else fio ('-':arg) >> return args
2310 findArg :: [(String,OptKind)] -> String -> (String,OptKind)
2312 = case [ (remove_spaces rest, k) | (pat,k) <- spec,
2313 Just rest <- [my_prefix_match pat arg],
2314 is_prefix k || null rest ] of
2315 [] -> unknownFlagErr ('-':arg)
2318 is_prefix (NoArg _) = False
2319 is_prefix (SepArg _) = False
2320 is_prefix (PassFlag _) = False
2323 -----------------------------------------------------------------------------
2324 -- convert sizes like "3.5M" into integers
2326 decodeSize :: String -> Integer
2328 | c == "" = truncate n
2329 | c == "K" || c == "k" = truncate (n * 1000)
2330 | c == "M" || c == "m" = truncate (n * 1000 * 1000)
2331 | c == "G" || c == "g" = truncate (n * 1000 * 1000 * 1000)
2332 | otherwise = throwDyn (OtherError ("can't decode size: " ++ str))
2333 where (m, c) = span pred str
2334 n = read m :: Double
2335 pred c = isDigit c || c == '.'
2337 floatOpt :: IORef Double -> String -> IO ()
2339 = writeIORef ref (read str :: Double)
2341 -----------------------------------------------------------------------------
2342 -- Finding files in the installation
2344 GLOBAL_VAR(topDir, clibdir, String)
2346 -- grab the last -B option on the command line, and
2347 -- set topDir to its value.
2348 setTopDir :: [String] -> IO [String]
2350 let (minusbs, others) = partition (prefixMatch "-B") args
2352 [] -> writeIORef topDir clibdir
2353 some -> writeIORef topDir (drop 2 (last some)))
2356 findFile name alt_path = unsafePerformIO (do
2357 top_dir <- readIORef topDir
2358 let installed_file = top_dir ++ '/':name
2359 let inplace_file = top_dir ++ '/':cCURRENT_DIR ++ '/':alt_path
2360 b <- doesFileExist inplace_file
2361 if b then return inplace_file
2362 else return installed_file
2365 -----------------------------------------------------------------------------
2368 my_partition :: (a -> Maybe b) -> [a] -> ([(a,b)],[a])
2369 my_partition _ [] = ([],[])
2370 my_partition p (a:as)
2371 = let (bs,cs) = my_partition p as in
2373 Nothing -> (bs,a:cs)
2374 Just b -> ((a,b):bs,cs)
2376 my_prefix_match :: String -> String -> Maybe String
2377 my_prefix_match [] rest = Just rest
2378 my_prefix_match (_:_) [] = Nothing
2379 my_prefix_match (p:pat) (r:rest)
2380 | p == r = my_prefix_match pat rest
2381 | otherwise = Nothing
2383 prefixMatch :: Eq a => [a] -> [a] -> Bool
2384 prefixMatch [] _str = True
2385 prefixMatch _pat [] = False
2386 prefixMatch (p:ps) (s:ss) | p == s = prefixMatch ps ss
2389 postfixMatch :: String -> String -> Bool
2390 postfixMatch pat str = prefixMatch (reverse pat) (reverse str)
2392 later = flip finally
2394 my_catchDyn = flip catchDyn
2396 global :: a -> IORef a
2397 global a = unsafePerformIO (newIORef a)
2399 splitFilename :: String -> (String,String)
2400 splitFilename f = (reverse (stripDot rev_basename), reverse rev_ext)
2401 where (rev_ext, rev_basename) = span ('.' /=) (reverse f)
2402 stripDot ('.':xs) = xs
2405 suffixOf :: String -> String
2406 suffixOf s = drop_longest_prefix s '.'
2408 split :: Char -> String -> [String]
2409 split c s = case rest of
2411 _:rest -> chunk : split c rest
2412 where (chunk, rest) = break (==c) s
2414 add :: IORef [a] -> a -> IO ()
2417 writeIORef var (x:xs)
2419 addNoDups :: Eq a => IORef [a] -> a -> IO ()
2420 addNoDups var x = do
2422 unless (x `elem` xs) $ writeIORef var (x:xs)
2424 remove_suffix :: Char -> String -> String
2426 | null pre = reverse suf
2427 | otherwise = reverse pre
2428 where (suf,pre) = break (==c) (reverse s)
2430 drop_longest_prefix :: String -> Char -> String
2431 drop_longest_prefix s c = reverse suf
2432 where (suf,_pre) = break (==c) (reverse s)
2434 take_longest_prefix :: String -> Char -> String
2435 take_longest_prefix s c = reverse pre
2436 where (_suf,pre) = break (==c) (reverse s)
2438 newsuf :: String -> String -> String
2439 newsuf suf s = remove_suffix '.' s ++ suf
2441 -- getdir strips the filename off the input string, returning the directory.
2442 getdir :: String -> String
2443 getdir s = if null dir then "." else init dir
2444 where dir = take_longest_prefix s '/'
2446 newdir :: String -> String -> String
2447 newdir dir s = dir ++ '/':drop_longest_prefix s '/'
2449 remove_spaces :: String -> String
2450 remove_spaces = reverse . dropWhile isSpace . reverse . dropWhile isSpace
2452 -----------------------------------------------------------------------------
2453 -- compatibility code
2455 #if __GLASGOW_HASKELL__ <= 408
2457 ioErrors = justIoErrors