1 -----------------------------------------------------------------------------
4 -- (c) Simon Marlow 2000
6 -----------------------------------------------------------------------------
8 module Main (main) where
28 #define GLOBAL_VAR(name,value,ty) \
29 name = global (value) :: IORef (ty); \
32 -----------------------------------------------------------------------------
35 -- time commands when run with -v
41 -- make sure OPTIONS in .hs file propogate to .hc file if -C or -keep-hc-file-too
42 -- reading the package configuration file is too slow
44 -----------------------------------------------------------------------------
45 -- Differences vs. old driver:
47 -- No more "Enter your Haskell program, end with ^D (on a line of its own):"
48 -- consistency checking removed (may do this properly later)
50 -- no hi diffs (could be added later)
53 -----------------------------------------------------------------------------
54 -- non-configured things
56 cHaskell1Version = "5" -- i.e., Haskell 98
58 -----------------------------------------------------------------------------
62 hPutStr stderr "\nUsage: For basic information, try the `-help' option.\n"
66 let usage_filename = "ghc-usage.txt"
67 usage_dir = findFile usage_filename cGHC_DRIVER_DIR
68 usage <- readFile (usage_dir ++ "/" ++ usage_filename)
73 dump ('$':'$':s) = hPutStr stderr get_prog_name >> dump s
74 dump (c:s) = hPutChar stderr c >> dump s
76 version_str = cProjectVersion ++
77 ( if cProjectPatchLevel /= "0" && cProjectPatchLevel /= ""
78 then '.':cProjectPatchLevel
81 -----------------------------------------------------------------------------
85 Phase of the | Suffix saying | Flag saying | (suffix of)
86 compilation system | ``start here''| ``stop after''| output file
88 literate pre-processor | .lhs | - | -
89 C pre-processor (opt.) | - | -E | -
90 Haskell compiler | .hs | -C, -S | .hc, .s
91 C compiler (opt.) | .hc or .c | -S | .s
92 assembler | .s or .S | -c | .o
93 linker | other | - | a.out
97 = MkDependHS -- haskell dependency generation
102 | HCc -- Haskellised C (as opposed to vanilla C) compilation
103 | Mangle -- assembly mangling, now done by a separate script.
104 | SplitMangle -- after mangler if splitting
108 deriving (Eq,Ord,Enum,Ix,Show,Bounded)
110 initial_phase = Unlit
112 -----------------------------------------------------------------------------
116 = UnknownFileType String
119 | MultipleSrcsOneOutput
120 | UnknownPackage String
121 | WayCombinationNotSupported [WayName]
122 | PhaseFailed String ExitCode
128 GLOBAL_VAR(prog_name, "ghc", String)
130 get_prog_name = unsafePerformIO (readIORef prog_name) -- urk!
132 instance Show BarfKind where
134 = showString get_prog_name . showString ": " . showBarf e
136 showBarf AmbiguousPhase
137 = showString "only one of the flags -M, -E, -C, -S, -c is allowed"
138 showBarf (UnknownFileType s)
139 = showString "unknown file type, and linking not done: " . showString s
140 showBarf (UnknownFlag s)
141 = showString "unrecognised flag: " . showString s
142 showBarf MultipleSrcsOneOutput
143 = showString "can't apply -o option to multiple source files"
144 showBarf (UnknownPackage s)
145 = showString "unknown package name: " . showString s
146 showBarf (WayCombinationNotSupported ws)
147 = showString "combination not supported: "
148 . foldr1 (\a b -> a . showChar '/' . b)
149 (map (showString . wayName . lkupWay) ws)
150 showBarf (NoInputFiles)
151 = showString "no input files"
152 showBarf (OtherError str)
155 barfKindTc = mkTyCon "BarfKind"
157 instance Typeable BarfKind where
158 typeOf _ = mkAppTy barfKindTc []
160 -----------------------------------------------------------------------------
163 GLOBAL_VAR(files_to_clean, [], [String])
165 cleanTempFiles :: IO ()
167 fs <- readIORef files_to_clean
168 verb <- readIORef verbose
171 (do on verb (hPutStrLn stderr ("removing: " ++ f))
172 if '*' `elem` f then system ("rm -f " ++ f) >> return ()
175 (\e -> on verb (hPutStrLn stderr
176 ("warning: can't remove tmp file" ++ f)))
179 -----------------------------------------------------------------------------
180 -- Which phase to stop at
182 GLOBAL_VAR(stop_after, Ln, Phase)
184 end_phase_flag :: String -> Maybe Phase
185 end_phase_flag "-M" = Just MkDependHS
186 end_phase_flag "-E" = Just Cpp
187 end_phase_flag "-C" = Just Hsc
188 end_phase_flag "-S" = Just Mangle
189 end_phase_flag "-c" = Just As
190 end_phase_flag _ = Nothing
192 getStopAfter :: [String]
193 -> IO ( [String] -- rest of command line
194 , Phase -- stop after phase
195 , Bool -- do linking?
198 = case my_partition end_phase_flag flags of
199 ([] , rest) -> return (rest, As, True)
200 ([one], rest) -> return (rest, one, False)
201 (_ , rest) -> throwDyn AmbiguousPhase
203 -----------------------------------------------------------------------------
204 -- Global compilation flags
207 GLOBAL_VAR(cpp_flag, False, Bool)
208 hs_source_cpp_opts = global
209 [ "-D__HASKELL1__="++cHaskell1Version
210 , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
212 , "-D__CONCURRENT_HASKELL__"
215 -- Keep output from intermediate phases
216 GLOBAL_VAR(keep_hi_diffs, False, Bool)
217 GLOBAL_VAR(keep_hc_files, False, Bool)
218 GLOBAL_VAR(keep_s_files, False, Bool)
219 GLOBAL_VAR(keep_raw_s_files, False, Bool)
221 -- Compiler RTS options
222 GLOBAL_VAR(specific_heap_size, 6 * 1000 * 1000, Integer)
223 GLOBAL_VAR(specific_stack_size, 1000 * 1000, Integer)
224 GLOBAL_VAR(scale_sizes_by, 1.0, Double)
227 GLOBAL_VAR(verbose, False, Bool)
228 is_verbose = do v <- readIORef verbose; if v then return "-v" else return ""
231 GLOBAL_VAR(dry_run, False, Bool)
232 GLOBAL_VAR(recomp, True, Bool)
233 GLOBAL_VAR(tmp_prefix, cTMPDIR, String)
234 GLOBAL_VAR(stolen_x86_regs, 4, Int)
235 GLOBAL_VAR(static, True, Bool) -- ToDo: not for mingw32
236 GLOBAL_VAR(collect_ghc_timing, False, Bool)
237 GLOBAL_VAR(do_asm_mangling, True, Bool)
239 -----------------------------------------------------------------------------
240 -- Splitting object files (for libraries)
242 GLOBAL_VAR(split_object_files, False, Bool)
243 GLOBAL_VAR(split_prefix, "", String)
244 GLOBAL_VAR(n_split_files, 0, Int)
247 can_split = prefixMatch "i386" cTARGETPLATFORM
248 || prefixMatch "alpha" cTARGETPLATFORM
249 || prefixMatch "hppa" cTARGETPLATFORM
250 || prefixMatch "m68k" cTARGETPLATFORM
251 || prefixMatch "mips" cTARGETPLATFORM
252 || prefixMatch "powerpc" cTARGETPLATFORM
253 || prefixMatch "rs6000" cTARGETPLATFORM
254 || prefixMatch "sparc" cTARGETPLATFORM
256 -----------------------------------------------------------------------------
257 -- Compiler output options
264 GLOBAL_VAR(hsc_lang, if cGhcWithNativeCodeGen == "YES" &&
265 prefixMatch "i386" cTARGETPLATFORM
270 GLOBAL_VAR(output_dir, Nothing, Maybe String)
271 GLOBAL_VAR(output_suf, Nothing, Maybe String)
272 GLOBAL_VAR(output_file, Nothing, Maybe String)
273 GLOBAL_VAR(output_hi, Nothing, Maybe String)
275 GLOBAL_VAR(ld_inputs, [], [String])
277 odir_ify :: String -> IO String
279 odir_opt <- readIORef output_dir
282 Just d -> return (newdir d f)
284 osuf_ify :: String -> IO String
286 osuf_opt <- readIORef output_suf
289 Just s -> return (newsuf s f)
291 -----------------------------------------------------------------------------
294 GLOBAL_VAR(produceHi, True, Bool)
295 GLOBAL_VAR(hi_on_stdout, False, Bool)
296 GLOBAL_VAR(hi_with, "", String)
297 GLOBAL_VAR(hi_suf, "hi", String)
299 data HiDiffFlag = NormalHiDiffs | UsageHiDiffs | NoHiDiffs
300 GLOBAL_VAR(hi_diffs, NoHiDiffs, HiDiffFlag)
302 -----------------------------------------------------------------------------
303 -- Warnings & sanity checking
305 -- Warning packages that are controlled by -W and -Wall. The 'standard'
306 -- warnings that you get all the time are
308 -- -fwarn-overlapping-patterns
309 -- -fwarn-missing-methods
310 -- -fwarn-missing-fields
311 -- -fwarn-deprecations
312 -- -fwarn-duplicate-exports
314 -- these are turned off by -Wnot.
316 standardWarnings = [ "-fwarn-overlapping-patterns"
317 , "-fwarn-missing-methods"
318 , "-fwarn-missing-fields"
319 , "-fwarn-deprecations"
320 , "-fwarn-duplicate-exports"
322 minusWOpts = standardWarnings ++
323 [ "-fwarn-unused-binds"
324 , "-fwarn-unused-matches"
325 , "-fwarn-incomplete-patterns"
326 , "-fwarn-unused-imports"
328 minusWallOpts = minusWOpts ++
329 [ "-fwarn-type-defaults"
330 , "-fwarn-name-shadowing"
331 , "-fwarn-missing-signatures"
334 data WarningState = W_default | W_ | W_all | W_not
336 GLOBAL_VAR(warning_opt, W_default, WarningState)
338 -----------------------------------------------------------------------------
339 -- Compiler optimisation options
341 GLOBAL_VAR(opt_level, 0, Int)
343 setOptLevel :: String -> IO ()
344 setOptLevel "" = do { writeIORef opt_level 1; go_via_C }
345 setOptLevel "not" = writeIORef opt_level 0
346 setOptLevel [c] | isDigit c = do
347 let level = ord c - ord '0'
348 writeIORef opt_level level
349 on (level >= 1) go_via_C
350 setOptLevel s = throwDyn (UnknownFlag ("-O"++s))
353 l <- readIORef hsc_lang
354 case l of { HscAsm -> writeIORef hsc_lang HscC;
355 _other -> return () }
357 GLOBAL_VAR(opt_minus_o2_for_C, False, Bool)
359 GLOBAL_VAR(opt_MaxSimplifierIterations, 4, Int)
360 GLOBAL_VAR(opt_StgStats, False, Bool)
361 GLOBAL_VAR(opt_UsageSPInf, False, Bool) -- Off by default
363 hsc_minusO2_flags = hsc_minusO_flags -- for now
365 hsc_minusNoO_flags = do
366 iter <- readIORef opt_MaxSimplifierIterations
368 "-fignore-interface-pragmas",
369 "-fomit-interface-pragmas",
372 "-fmax-simplifier-iterations" ++ show iter,
376 hsc_minusO_flags = do
377 iter <- readIORef opt_MaxSimplifierIterations
378 usageSP <- readIORef opt_UsageSPInf
379 stgstats <- readIORef opt_StgStats
384 "-fdo-eta-reduction",
385 "-fdo-lambda-eta-expansion",
390 -- initial simplify: mk specialiser happy: minimum effort please
395 -- Don't inline anything till full laziness has bitten
396 -- In particular, inlining wrappers inhibits floating
397 -- e.g. ...(case f x of ...)...
398 -- ==> ...(case (case x of I# x# -> fw x#) of ...)...
399 -- ==> ...(case x of I# x# -> case fw x# of ...)...
400 -- and now the redex (f x) isn't floatable any more
403 -- Similarly, don't apply any rules until after full
404 -- laziness. Notably, list fusion can prevent floating.
407 -- Don't do case-of-case transformations.
408 -- This makes full laziness work better
410 "-fmax-simplifier-iterations2",
413 -- Specialisation is best done before full laziness
414 -- so that overloaded functions have all their dictionary lambdas manifest
423 -- Want to run with inline phase 1 after the specialiser to give
424 -- maximum chance for fusion to work before we inline build/augment
425 -- in phase 2. This made a difference in 'ansi' where an
426 -- overloaded function wasn't inlined till too late.
427 "-fmax-simplifier-iterations" ++ show iter,
430 -- infer usage information here in case we need it later.
431 -- (add more of these where you need them --KSW 1999-04)
432 if usageSP then "-fusagesp" else "",
436 -- Need inline-phase2 here so that build/augment get
437 -- inlined. I found that spectral/hartel/genfft lost some useful
438 -- strictness in the function sumcode' if augment is not inlined
439 -- before strictness analysis runs
442 "-fmax-simplifier-iterations2",
448 "-fmax-simplifier-iterations2",
449 -- No -finline-phase: allow all Ids to be inlined now
450 -- This gets foldr inlined before strictness analysis
459 "-fmax-simplifier-iterations" ++ show iter,
460 -- No -finline-phase: allow all Ids to be inlined now
464 -- nofib/spectral/hartel/wang doubles in speed if you
465 -- do full laziness late in the day. It only happens
466 -- after fusion and other stuff, so the early pass doesn't
467 -- catch it. For the record, the redex is
468 -- f_el22 (f_el21 r_midblock)
470 -- Leave out lambda lifting for now
471 -- "-fsimplify", -- Tidy up results of full laziness
473 -- "-fmax-simplifier-iterations2",
475 -- "-ffloat-outwards-full",
477 -- We want CSE to follow the final full-laziness pass, because it may
478 -- succeed in commoning up things floated out by full laziness.
480 -- CSE must immediately follow a simplification pass, because it relies
481 -- on the no-shadowing invariant. See comments at the top of CSE.lhs
482 -- So it must NOT follow float-inwards, which can give rise to shadowing,
483 -- even if its input doesn't have shadows. Hence putting it between
490 -- Case-liberation for -O2. This should be after
491 -- strictness analysis and the simplification which follows it.
493 -- ( ($OptLevel != 2)
495 -- : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
497 -- "-fliberate-case",
499 -- Final clean-up simplification:
502 "-fmax-simplifier-iterations" ++ show iter,
503 -- No -finline-phase: allow all Ids to be inlined now
508 -----------------------------------------------------------------------------
511 split_marker = ':' -- not configurable
513 import_paths, include_paths, library_paths :: IORef [String]
514 GLOBAL_VAR(import_paths, ["."], [String])
515 GLOBAL_VAR(include_paths, ["."], [String])
516 GLOBAL_VAR(library_paths, [], [String])
518 GLOBAL_VAR(cmdline_libraries, [], [String])
519 GLOBAL_VAR(cmdline_hc_includes, [], [String])
521 augment_import_paths :: String -> IO ()
522 augment_import_paths "" = writeIORef import_paths []
523 augment_import_paths path
524 = do paths <- readIORef import_paths
525 writeIORef import_paths (paths ++ dirs)
526 where dirs = split split_marker path
528 augment_include_paths :: String -> IO ()
529 augment_include_paths path
530 = do paths <- readIORef include_paths
531 writeIORef include_paths (paths ++ split split_marker path)
533 augment_library_paths :: String -> IO ()
534 augment_library_paths path
535 = do paths <- readIORef library_paths
536 writeIORef library_paths (paths ++ split split_marker path)
538 -----------------------------------------------------------------------------
541 GLOBAL_VAR(package_config, (findFile "package.conf" (cGHC_DRIVER_DIR++"/package.conf.inplace")), String)
543 listPackages :: IO ()
545 details <- readIORef package_details
546 hPutStr stdout (listPkgs details)
553 details <- readIORef package_details
554 hPutStr stdout "Reading package info from stdin... "
556 let new_pkg = read stuff :: (String,Package)
558 (\e -> throwDyn (OtherError "parse error in package info"))
559 hPutStrLn stdout "done."
560 if (fst new_pkg `elem` map fst details)
561 then throwDyn (OtherError ("package `" ++ fst new_pkg ++
562 "' already installed"))
564 conf_file <- readIORef package_config
565 savePackageConfig conf_file
566 maybeRestoreOldConfig conf_file $ do
567 writeNewConfig conf_file ( ++ [new_pkg])
570 deletePackage :: String -> IO ()
571 deletePackage pkg = do
573 details <- readIORef package_details
574 if (pkg `notElem` map fst details)
575 then throwDyn (OtherError ("package `" ++ pkg ++ "' not installed"))
577 conf_file <- readIORef package_config
578 savePackageConfig conf_file
579 maybeRestoreOldConfig conf_file $ do
580 writeNewConfig conf_file (filter ((/= pkg) . fst))
583 checkConfigAccess :: IO ()
584 checkConfigAccess = do
585 conf_file <- readIORef package_config
586 access <- fileAccess conf_file True True False
588 then throwDyn (OtherError "you don't have permission to modify the package configuration file")
591 maybeRestoreOldConfig :: String -> IO () -> IO ()
592 maybeRestoreOldConfig conf_file io
593 = catchAllIO io (\e -> do
594 hPutStr stdout "\nWARNING: an error was encountered while the new \n\
595 \configuration was being written. Attempting to \n\
596 \restore the old configuration... "
597 system ("cp " ++ conf_file ++ ".old " ++ conf_file)
598 hPutStrLn stdout "done."
602 writeNewConfig :: String -> ([(String,Package)] -> [(String,Package)]) -> IO ()
603 writeNewConfig conf_file fn = do
604 hPutStr stdout "Writing new package config file... "
605 old_details <- readIORef package_details
606 h <- openFile conf_file WriteMode
607 hPutStr h (dumpPackages (fn old_details))
609 hPutStrLn stdout "done."
611 savePackageConfig :: String -> IO ()
612 savePackageConfig conf_file = do
613 hPutStr stdout "Saving old package config file... "
614 -- mv rather than cp because we've already done an hGetContents
615 -- on this file so we won't be able to open it for writing
616 -- unless we move the old one out of the way...
617 system ("mv " ++ conf_file ++ " " ++ conf_file ++ ".old")
618 hPutStrLn stdout "done."
620 -- package list is maintained in dependency order
621 packages = global ["std", "rts", "gmp"] :: IORef [String]
622 -- comma in value, so can't use macro, grrr
623 {-# NOINLINE packages #-}
625 addPackage :: String -> IO ()
627 = do pkg_details <- readIORef package_details
628 case lookup package pkg_details of
629 Nothing -> throwDyn (UnknownPackage package)
631 ps <- readIORef packages
634 else do mapM_ addPackage (package_deps details)
635 ps <- readIORef packages
636 writeIORef packages (package:ps)
638 getPackageImportPath :: IO [String]
639 getPackageImportPath = do
640 ps <- readIORef packages
641 ps' <- getPackageDetails ps
642 return (nub (concat (map import_dirs ps')))
644 getPackageIncludePath :: IO [String]
645 getPackageIncludePath = do
646 ps <- readIORef packages
647 ps' <- getPackageDetails ps
648 return (nub (filter (not.null) (map include_dir ps')))
650 -- includes are in reverse dependency order (i.e. rts first)
651 getPackageCIncludes :: IO [String]
652 getPackageCIncludes = do
653 ps <- readIORef packages
654 ps' <- getPackageDetails ps
655 return (reverse (nub (filter (not.null) (map c_include ps'))))
657 getPackageLibraryPath :: IO [String]
658 getPackageLibraryPath = do
659 ps <- readIORef packages
660 ps' <- getPackageDetails ps
661 return (nub (concat (map library_dirs ps')))
663 getPackageLibraries :: IO [String]
664 getPackageLibraries = do
665 ps <- readIORef packages
666 ps' <- getPackageDetails ps
667 tag <- readIORef build_tag
668 let suffix = if null tag then "" else '_':tag
669 return (concat (map libraries ps'))
671 getPackageExtraGhcOpts :: IO [String]
672 getPackageExtraGhcOpts = do
673 ps <- readIORef packages
674 ps' <- getPackageDetails ps
675 return (map extra_ghc_opts ps')
677 getPackageExtraCcOpts :: IO [String]
678 getPackageExtraCcOpts = do
679 ps <- readIORef packages
680 ps' <- getPackageDetails ps
681 return (map extra_cc_opts ps')
683 getPackageExtraLdOpts :: IO [String]
684 getPackageExtraLdOpts = do
685 ps <- readIORef packages
686 ps' <- getPackageDetails ps
687 return (map extra_ld_opts ps')
689 getPackageDetails ps = do
690 pkg_details <- readIORef package_details
691 let getDetails p = case lookup p pkg_details of
692 Just details -> return details
693 Nothing -> error "getPackageDetails"
696 GLOBAL_VAR(package_details, (error "package_details"), [(String,Package)])
698 -----------------------------------------------------------------------------
701 -- The central concept of a "way" is that all objects in a given
702 -- program must be compiled in the same "way". Certain options change
703 -- parameters of the virtual machine, eg. profiling adds an extra word
704 -- to the object header, so profiling objects cannot be linked with
705 -- non-profiling objects.
707 -- After parsing the command-line options, we determine which "way" we
708 -- are building - this might be a combination way, eg. profiling+ticky-ticky.
710 -- We then find the "build-tag" associated with this way, and this
711 -- becomes the suffix used to find .hi files and libraries used in
714 GLOBAL_VAR(build_tag, "", String)
743 GLOBAL_VAR(ways, [] ,[WayName])
745 allowed_combinations =
746 [ [WayProf,WayUnreg],
747 [WayProf,WaySMP] -- works???
750 findBuildTag :: IO [String] -- new options
752 way_names <- readIORef ways
753 case sort way_names of
754 [] -> do writeIORef build_tag ""
757 [w] -> do let details = lkupWay w
758 writeIORef build_tag (wayTag details)
759 return (wayOpts details)
761 ws -> if ws `notElem` allowed_combinations
762 then throwDyn (WayCombinationNotSupported ws)
763 else let stuff = map lkupWay ws
764 tag = concat (map wayTag stuff)
765 flags = map wayOpts stuff
767 writeIORef build_tag tag
768 return (concat flags)
771 case lookup w way_details of
772 Nothing -> error "findBuildTag"
773 Just details -> details
781 way_details :: [ (WayName, Way) ]
783 [ (WayProf, Way "p" "Profiling"
786 , "-optc-DPROFILING" ]),
788 (WayTicky, Way "t" "Ticky-ticky Profiling"
791 , "-optc-DTICKY_TICKY" ]),
793 (WayUnreg, Way "u" "Unregisterised"
795 , "-optc-DUSE_MINIINTERPRETER"
796 , "-fno-asm-mangling"
797 , "-funregisterised" ]),
799 (WayPar, Way "mp" "Parallel"
802 , "-D__PARALLEL_HASKELL__"
804 , "-package concurrent" ]),
806 (WayGran, Way "mg" "Gransim"
811 , "-package concurrent" ]),
813 (WaySMP, Way "s" "SMP"
819 (WayUser_a, Way "a" "User way 'a'" ["$WAY_a_REAL_OPTS"]),
820 (WayUser_b, Way "b" "User way 'b'" ["$WAY_b_REAL_OPTS"]),
821 (WayUser_c, Way "c" "User way 'c'" ["$WAY_c_REAL_OPTS"]),
822 (WayUser_d, Way "d" "User way 'd'" ["$WAY_d_REAL_OPTS"]),
823 (WayUser_e, Way "e" "User way 'e'" ["$WAY_e_REAL_OPTS"]),
824 (WayUser_f, Way "f" "User way 'f'" ["$WAY_f_REAL_OPTS"]),
825 (WayUser_g, Way "g" "User way 'g'" ["$WAY_g_REAL_OPTS"]),
826 (WayUser_h, Way "h" "User way 'h'" ["$WAY_h_REAL_OPTS"]),
827 (WayUser_i, Way "i" "User way 'i'" ["$WAY_i_REAL_OPTS"]),
828 (WayUser_j, Way "j" "User way 'j'" ["$WAY_j_REAL_OPTS"]),
829 (WayUser_k, Way "k" "User way 'k'" ["$WAY_k_REAL_OPTS"]),
830 (WayUser_l, Way "l" "User way 'l'" ["$WAY_l_REAL_OPTS"]),
831 (WayUser_m, Way "m" "User way 'm'" ["$WAY_m_REAL_OPTS"]),
832 (WayUser_n, Way "n" "User way 'n'" ["$WAY_n_REAL_OPTS"]),
833 (WayUser_o, Way "o" "User way 'o'" ["$WAY_o_REAL_OPTS"]),
834 (WayUser_A, Way "A" "User way 'A'" ["$WAY_A_REAL_OPTS"]),
835 (WayUser_B, Way "B" "User way 'B'" ["$WAY_B_REAL_OPTS"])
838 -----------------------------------------------------------------------------
839 -- Programs for particular phases
841 GLOBAL_VAR(pgm_dep, findFile "mkdependHS" cGHC_MKDEPENDHS, String)
842 GLOBAL_VAR(pgm_L, findFile "unlit" cGHC_UNLIT, String)
843 GLOBAL_VAR(pgm_P, cRAWCPP, String)
844 GLOBAL_VAR(pgm_C, findFile "hsc" cGHC_HSC, String)
845 GLOBAL_VAR(pgm_c, cGCC, String)
846 GLOBAL_VAR(pgm_m, findFile "ghc-asm" cGHC_MANGLER, String)
847 GLOBAL_VAR(pgm_s, findFile "ghc-split" cGHC_SPLIT, String)
848 GLOBAL_VAR(pgm_a, cGCC, String)
849 GLOBAL_VAR(pgm_l, cGCC, String)
851 -----------------------------------------------------------------------------
852 -- Options for particular phases
854 GLOBAL_VAR(opt_dep, [], [String])
855 GLOBAL_VAR(opt_L, [], [String])
856 GLOBAL_VAR(opt_P, [], [String])
857 GLOBAL_VAR(opt_C, [], [String])
858 GLOBAL_VAR(opt_Crts, [], [String])
859 GLOBAL_VAR(opt_c, [], [String])
860 GLOBAL_VAR(opt_a, [], [String])
861 GLOBAL_VAR(opt_m, [], [String])
862 GLOBAL_VAR(opt_l, [], [String])
863 GLOBAL_VAR(opt_dll, [], [String])
865 -- we add to the options from the front, so we need to reverse the list
866 getOpts :: IORef [String] -> IO [String]
867 getOpts opts = readIORef opts >>= return . reverse
869 GLOBAL_VAR(anti_opt_C, [], [String])
871 -----------------------------------------------------------------------------
872 -- Via-C compilation stuff
874 -- flags returned are: ( all C compilations
875 -- , registerised HC compilations
879 | prefixMatch "alpha" cTARGETPLATFORM
880 = return ( ["-static"], [] )
882 | prefixMatch "hppa" cTARGETPLATFORM
883 -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
884 -- (very nice, but too bad the HP /usr/include files don't agree.)
885 = return ( ["-static", "-D_HPUX_SOURCE"], [] )
887 | prefixMatch "m68k" cTARGETPLATFORM
888 -- -fno-defer-pop : for the .hc files, we want all the pushing/
889 -- popping of args to routines to be explicit; if we let things
890 -- be deferred 'til after an STGJUMP, imminent death is certain!
892 -- -fomit-frame-pointer : *don't*
893 -- It's better to have a6 completely tied up being a frame pointer
894 -- rather than let GCC pick random things to do with it.
895 -- (If we want to steal a6, then we would try to do things
896 -- as on iX86, where we *do* steal the frame pointer [%ebp].)
897 = return ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] )
899 | prefixMatch "i386" cTARGETPLATFORM
900 -- -fno-defer-pop : basically the same game as for m68k
902 -- -fomit-frame-pointer : *must* in .hc files; because we're stealing
903 -- the fp (%ebp) for our register maps.
904 = do n_regs <- readIORef stolen_x86_regs
905 sta <- readIORef static
906 return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else "" ],
907 [ "-fno-defer-pop", "-fomit-frame-pointer",
908 "-DSTOLEN_X86_REGS="++show n_regs ]
911 | prefixMatch "mips" cTARGETPLATFORM
912 = return ( ["static"], [] )
914 | prefixMatch "powerpc" cTARGETPLATFORM || prefixMatch "rs6000" cTARGETPLATFORM
915 = return ( ["static"], ["-finhibit-size-directive"] )
920 -----------------------------------------------------------------------------
921 -- Build the Hsc command line
923 build_hsc_opts :: IO [String]
925 opt_C_ <- getOpts opt_C -- misc hsc opts
928 warn_level <- readIORef warning_opt
929 let warn_opts = case warn_level of
930 W_default -> standardWarnings
932 W_all -> minusWallOpts
936 minus_o <- readIORef opt_level
939 0 -> hsc_minusNoO_flags
940 1 -> hsc_minusO_flags
941 2 -> hsc_minusO2_flags
945 ways_ <- readIORef ways
946 let stg_massage | WayProf `elem` ways_ = "-fmassage-stg-for-profiling"
949 stg_stats <- readIORef opt_StgStats
950 let stg_stats_flag | stg_stats = "-dstg-stats"
953 let stg_opts = [ stg_massage, stg_stats_flag, "-flet-no-escape" ]
954 -- let-no-escape always on for now
957 let hi_vers = "-fhi-version="++cProjectVersionInt
958 static <- (do s <- readIORef static; if s then return "-static" else return "")
960 l <- readIORef hsc_lang
963 HscAsm -> "-olang=asm"
964 HscJava -> "-olang=java"
966 -- get hi-file suffix
967 hisuf <- readIORef hi_suf
969 -- hi-suffix for packages depends on the build tag.
971 do tag <- readIORef build_tag
974 else return (tag ++ "_hi")
976 import_dirs <- readIORef import_paths
977 package_import_dirs <- getPackageImportPath
979 let hi_map = "-himap=" ++
980 makeHiMap import_dirs hisuf
981 package_import_dirs package_hisuf
984 hi_map_sep = "-himap-sep=" ++ [split_marker]
986 scale <- readIORef scale_sizes_by
987 heap <- readIORef specific_heap_size
988 stack <- readIORef specific_stack_size
989 cmdline_rts_opts <- getOpts opt_Crts
990 let heap' = truncate (fromIntegral heap * scale) :: Integer
991 stack' = truncate (fromIntegral stack * scale) :: Integer
992 rts_opts = [ "+RTS", "-H"++show heap', "-K"++show stack' ]
993 ++ cmdline_rts_opts ++ [ "-RTS" ]
995 -- take into account -fno-* flags by removing the equivalent -f*
996 -- flag from our list.
997 anti_flags <- getOpts anti_opt_C
998 let basic_opts = opt_C_ ++ warn_opts ++ optimisation_opts ++ stg_opts
999 filtered_opts = filter (`notElem` anti_flags) basic_opts
1004 -- ToDo: C stub files
1005 ++ [ hi_vers, static, verb, lang, hi_map, hi_map_sep ]
1010 (import_dirs :: [String])
1011 (hi_suffix :: String)
1012 (package_import_dirs :: [String])
1013 (package_hi_suffix :: String)
1014 (split_marker :: Char)
1015 = foldr (add_dir hi_suffix)
1016 (foldr (add_dir package_hi_suffix) "" package_import_dirs)
1019 add_dir hisuf dir str = dir ++ "%." ++ hisuf ++ split_marker : str
1022 getOptionsFromSource
1023 :: String -- input file
1024 -> IO [String] -- options, if any
1025 getOptionsFromSource file
1026 = do h <- openFile file ReadMode
1032 () | null l -> look h
1033 | prefixMatch "#" l -> look h
1034 | prefixMatch "{-# LINE" l -> look h
1035 | Just (opts:_) <- matchRegex optionRegex l
1036 -> return (words opts)
1037 | otherwise -> return []
1039 optionRegex = mkRegex "{-#[ \t]+OPTIONS[ \t]+(.*)#-}"
1041 -----------------------------------------------------------------------------
1044 get_source_files :: [String] -> ([String],[String])
1045 get_source_files = partition (('-' /=) . head)
1047 suffixes :: [(String,Phase)]
1059 phase_input_ext Unlit = "lhs"
1060 phase_input_ext Cpp = "lpp"
1061 phase_input_ext Hsc = "cpp"
1062 phase_input_ext HCc = "hc"
1063 phase_input_ext Cc = "c"
1064 phase_input_ext Mangle = "raw_s"
1065 phase_input_ext SplitMangle = "split_s" -- not really generated
1066 phase_input_ext As = "s"
1067 phase_input_ext SplitAs = "split_s" -- not really generated
1068 phase_input_ext Ln = "o"
1070 find_phase :: String -> ([(Phase,String)], [String])
1071 -> ([(Phase,String)], [String])
1072 find_phase f (phase_srcs, unknown_srcs)
1073 = case lookup ext suffixes of
1074 Just the_phase -> ((the_phase,f):phase_srcs, unknown_srcs)
1075 Nothing -> (phase_srcs, f:unknown_srcs)
1076 where (basename,ext) = split_filename f
1079 find_phases srcs = (phase_srcs, unknown_srcs)
1080 where (phase_srcs, unknown_srcs) = foldr find_phase ([],[]) srcs
1083 -- all error messages are propagated as exceptions
1084 my_catchDyn (\dyn -> case dyn of
1085 PhaseFailed phase code -> exitWith code
1086 Interrupted -> exitWith (ExitFailure 1)
1087 _ -> do hPutStrLn stderr (show (dyn :: BarfKind))
1088 exitWith (ExitFailure 1)) $
1090 later cleanTempFiles $
1091 -- exceptions will be blocked while we clean the temporary files,
1092 -- so there shouldn't be any difficulty if we receive further
1096 -- install signal handlers
1097 main_thread <- myThreadId
1098 let sig_handler = Catch (raiseInThread main_thread
1099 (DynException (toDyn Interrupted)))
1100 installHandler sigQUIT sig_handler Nothing
1101 installHandler sigINT sig_handler Nothing
1104 writeIORef prog_name pgm
1108 -- grab any -B options from the command line first
1109 argv' <- setTopDir argv
1111 -- read the package configuration
1112 conf_file <- readIORef package_config
1113 contents <- readFile conf_file
1114 writeIORef package_details (read contents)
1116 -- find the phase to stop after (i.e. -E, -C, -c, -S flags)
1117 (flags2, stop_phase, do_linking) <- getStopAfter argv'
1119 -- process all the other arguments, and get the source files
1120 srcs <- processArgs flags2 []
1122 -- find the build tag, and re-process the build-specific options
1123 more_opts <- findBuildTag
1124 _ <- processArgs more_opts []
1127 verb <- readIORef verbose
1129 when verb (hPutStrLn stderr ("Using package config file: " ++ conf_file))
1131 if stop_phase == MkDependHS -- mkdependHS is special
1132 then do_mkdependHS flags2 srcs
1135 -- for each source file, find which phase to start at
1136 let (phase_srcs, unknown_srcs) = find_phases srcs
1138 o_file <- readIORef output_file
1139 if isJust o_file && not do_linking && length phase_srcs > 1
1140 then throwDyn MultipleSrcsOneOutput
1143 if null unknown_srcs && null phase_srcs
1144 then throwDyn NoInputFiles
1147 -- if we have unknown files, and we're not doing linking, complain
1148 -- (otherwise pass them through to the linker).
1149 if not (null unknown_srcs) && not do_linking
1150 then throwDyn (UnknownFileType (head unknown_srcs))
1153 let compileFile :: (Phase, String) -> IO String
1154 compileFile (phase, src) = do
1155 let (orig_base, _) = split_filename src
1156 if phase < Ln -- anything to do?
1157 then run_pipeline stop_phase do_linking True orig_base (phase,src)
1160 o_files <- mapM compileFile phase_srcs
1163 then do_link o_files unknown_srcs
1167 -- The following compilation pipeline algorithm is fairly hacky. A
1168 -- better way to do this would be to express the whole comilation as a
1169 -- data flow DAG, where the nodes are the intermediate files and the
1170 -- edges are the compilation phases. This framework would also work
1171 -- nicely if a haskell dependency generator was included in the
1174 -- It would also deal much more cleanly with compilation phases that
1175 -- generate multiple intermediates, (eg. hsc generates .hc, .hi, and
1176 -- possibly stub files), where some of the output files need to be
1177 -- processed further (eg. the stub files need to be compiled by the C
1180 -- A cool thing to do would then be to execute the data flow graph
1181 -- concurrently, automatically taking advantage of extra processors on
1182 -- the host machine. For example, when compiling two Haskell files
1183 -- where one depends on the other, the data flow graph would determine
1184 -- that the C compiler from the first comilation can be overlapped
1185 -- with the hsc comilation for the second file.
1188 :: Phase -- phase to end on (never Linker)
1189 -> Bool -- doing linking afterward?
1190 -> Bool -- take into account -o when generating output?
1191 -> String -- original basename (eg. Main)
1192 -> (Phase, String) -- phase to run, input file
1193 -> IO String -- return final filename
1195 run_pipeline last_phase do_linking use_ofile orig_basename (phase, input_fn)
1196 | phase > last_phase = return input_fn
1200 let (basename,ext) = split_filename input_fn
1202 split <- readIORef split_object_files
1203 mangle <- readIORef do_asm_mangling
1204 lang <- readIORef hsc_lang
1206 -- figure out what the next phase is. This is
1207 -- straightforward, apart from the fact that hsc can generate
1208 -- either C or assembler direct, and assembly mangling is
1209 -- optional, and splitting involves one extra phase and an alternate
1215 HscAsm | split -> SplitMangle
1218 HCc | mangle -> Mangle
1223 Mangle | not split -> As
1224 SplitMangle -> SplitAs
1230 -- filename extension for the output, determined by next_phase
1231 let new_ext = phase_input_ext next_phase
1233 -- Figure out what the output from this pass should be called.
1235 -- If we're keeping the output from this phase, then we just save
1236 -- it in the current directory, otherwise we generate a new temp file.
1237 keep_s <- readIORef keep_s_files
1238 keep_raw_s <- readIORef keep_raw_s_files
1239 keep_hc <- readIORef keep_hc_files
1240 let keep_this_output =
1243 Mangle | keep_raw_s -> True -- first enhancement :)
1245 Cc | keep_hc -> True
1249 (if next_phase > last_phase && not do_linking && use_ofile
1250 then do o_file <- readIORef output_file
1254 f <- odir_ify (orig_basename ++ '.':new_ext)
1257 -- .o files are always kept. .s files and .hc file may be kept.
1258 else if keep_this_output
1259 then odir_ify (orig_basename ++ '.':new_ext)
1260 else do filename <- newTempName new_ext
1261 add files_to_clean filename
1265 run_phase phase orig_basename input_fn output_fn
1267 -- sadly, ghc -E is supposed to write the file to stdout. We
1268 -- generate <file>.cpp, so we also have to cat the file here.
1269 if (next_phase > last_phase && last_phase == Cpp)
1270 then run_something "Dump pre-processed file to stdout"
1271 ("cat " ++ output_fn)
1274 run_pipeline last_phase do_linking use_ofile
1275 orig_basename (next_phase, output_fn)
1278 -- find a temporary name that doesn't already exist.
1279 newTempName :: String -> IO String
1280 newTempName extn = do
1282 tmp_dir <- readIORef tmp_prefix
1283 findTempName tmp_dir x
1284 where findTempName tmp_dir x = do
1285 let filename = tmp_dir ++ "/ghc" ++ show x ++ '.':extn
1286 b <- fileExist filename
1287 if b then findTempName tmp_dir (x+1)
1288 else return filename
1290 -------------------------------------------------------------------------------
1293 do_mkdependHS :: [String] -> [String] -> IO ()
1294 do_mkdependHS cmd_opts srcs = do
1296 let quote_include_opt o | prefixMatch "-#include" o = "'" ++ o ++ "'"
1299 mkdependHS <- readIORef pgm_dep
1300 mkdependHS_opts <- getOpts opt_dep
1301 hs_src_cpp_opts <- readIORef hs_source_cpp_opts
1303 run_something "Dependency generation"
1304 (unwords (mkdependHS :
1307 ++ ("--" : map quote_include_opt cmd_opts )
1311 -------------------------------------------------------------------------------
1314 run_phase Unlit basename input_fn output_fn
1315 = do unlit <- readIORef pgm_L
1316 unlit_flags <- getOpts opt_L
1317 run_something "Literate pre-processor"
1318 ("echo '# 1 \"" ++input_fn++"\"' > "++output_fn++" && "
1319 ++ unlit ++ ' ':input_fn ++ " - >> " ++ output_fn)
1321 -------------------------------------------------------------------------------
1324 run_phase Cpp basename input_fn output_fn
1325 = do src_opts <- getOptionsFromSource input_fn
1326 processArgs src_opts []
1328 do_cpp <- readIORef cpp_flag
1331 cpp <- readIORef pgm_P
1332 hscpp_opts <- getOpts opt_P
1333 hs_src_cpp_opts <- readIORef hs_source_cpp_opts
1335 cmdline_include_paths <- readIORef include_paths
1336 pkg_include_dirs <- getPackageIncludePath
1337 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
1338 ++ pkg_include_dirs)
1341 run_something "C pre-processor"
1343 (["echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}'", ">", output_fn, "&&",
1348 ++ [ "-x", "c", input_fn, ">>", output_fn ]
1351 run_something "Inefective C pre-processor"
1352 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}' > "
1353 ++ output_fn ++ " && cat " ++ input_fn
1354 ++ " >> " ++ output_fn)
1356 -----------------------------------------------------------------------------
1359 run_phase Hsc basename input_fn output_fn
1360 = do hsc <- readIORef pgm_C
1362 -- we add the current directory (i.e. the directory in which
1363 -- the .hs files resides) to the import path, since this is
1364 -- what gcc does, and it's probably what you want.
1365 let current_dir = getdir basename
1367 paths <- readIORef include_paths
1368 writeIORef include_paths (current_dir : paths)
1370 -- build the hsc command line
1371 hsc_opts <- build_hsc_opts
1373 doing_hi <- readIORef produceHi
1374 tmp_hi_file <- if doing_hi
1375 then do fn <- newTempName "hi"
1376 add files_to_clean fn
1380 let hi_flag = if doing_hi then "-hifile=" ++ tmp_hi_file
1383 -- deal with -Rghc-timing
1384 timing <- readIORef collect_ghc_timing
1385 stat_file <- newTempName "stat"
1386 add files_to_clean stat_file
1387 let stat_opts | timing = [ "+RTS", "-S"++stat_file, "-RTS" ]
1390 -- tmp files for foreign export stub code
1391 tmp_stub_h <- newTempName "stub_h"
1392 tmp_stub_c <- newTempName "stub_c"
1393 add files_to_clean tmp_stub_h
1394 add files_to_clean tmp_stub_c
1396 -- figure out where to put the .hi file
1397 ohi <- readIORef output_hi
1398 hisuf <- readIORef hi_suf
1399 let hi_flags = case ohi of
1400 Nothing -> [ "-hidir="++current_dir, "-hisuf="++hisuf ]
1401 Just fn -> [ "-hifile="++fn ]
1403 -- run the compiler!
1404 run_something "Haskell Compiler"
1405 (unwords (hsc : input_fn : (
1409 "-ofile="++output_fn,
1416 -- Generate -Rghc-timing info
1418 run_something "Generate timing stats"
1419 (findFile "ghc-stats" cGHC_STATS ++ ' ':stat_file)
1423 let stub_h = basename ++ "_stub.h"
1424 let stub_c = basename ++ "_stub.c"
1426 -- copy .h_stub file into current dir if present
1427 b <- fileExist tmp_stub_h
1429 run_something "Copy stub .h file"
1430 ("cp " ++ tmp_stub_h ++ ' ':stub_h)
1432 -- #include <..._stub.h> in .hc file
1433 add cmdline_hc_includes tmp_stub_h -- hack
1435 -- copy the _stub.c file into the current dir
1436 run_something "Copy stub .c file"
1438 "rm -f", stub_c, "&&",
1439 "echo \'#include \""++stub_h++"\"\' >"++stub_c, " &&",
1440 "cat", tmp_stub_c, ">> ", stub_c
1443 -- compile the _stub.c file w/ gcc
1444 run_pipeline As False{-no linking-}
1445 False{-no -o option-}
1449 add ld_inputs (basename++"_stub.o")
1452 -----------------------------------------------------------------------------
1455 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
1456 -- way too many hacks, and I can't say I've ever used it anyway.
1458 run_phase cc_phase basename input_fn output_fn
1459 | cc_phase == Cc || cc_phase == HCc
1460 = do cc <- readIORef pgm_c
1461 cc_opts <- getOpts opt_c
1462 cmdline_include_dirs <- readIORef include_paths
1463 -- ToDo: $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
1465 let hcc = cc_phase == HCc
1467 -- add package include paths even if we're just compiling
1468 -- .c files; this is the Value Add(TM) that using
1469 -- ghc instead of gcc gives you :)
1470 pkg_include_dirs <- getPackageIncludePath
1471 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
1472 ++ pkg_include_dirs)
1474 c_includes <- getPackageCIncludes
1475 cmdline_includes <- readIORef cmdline_hc_includes -- -#include options
1477 let cc_injects | hcc = unlines (map mk_include
1478 (c_includes ++ reverse cmdline_includes))
1482 '"':_{-"-} -> "#include "++h_file
1483 '<':_ -> "#include "++h_file
1484 _ -> "#include \""++h_file++"\""
1486 cc_help <- newTempName "c"
1487 add files_to_clean cc_help
1488 h <- openFile cc_help WriteMode
1489 hPutStr h cc_injects
1490 hPutStrLn h ("#include \"" ++ input_fn ++ "\"\n")
1493 ccout <- newTempName "ccout"
1494 add files_to_clean ccout
1496 mangle <- readIORef do_asm_mangling
1497 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
1501 o2 <- readIORef opt_minus_o2_for_C
1502 let opt_flag | o2 = "-O2"
1505 pkg_extra_cc_opts <- getPackageExtraCcOpts
1507 run_something "C Compiler"
1508 (unwords ([ cc, "-x", "c", cc_help, "-o", output_fn ]
1510 ++ (if cc_phase == HCc && mangle
1511 then md_regd_c_flags
1513 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
1514 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
1517 ++ pkg_extra_cc_opts
1521 -- ToDo: postprocess the output from gcc
1523 -----------------------------------------------------------------------------
1526 run_phase Mangle basename input_fn output_fn
1527 = do mangler <- readIORef pgm_m
1528 mangler_opts <- getOpts opt_m
1530 if (prefixMatch "i386" cTARGETPLATFORM)
1531 then do n_regs <- readIORef stolen_x86_regs
1532 return [ show n_regs ]
1534 run_something "Assembly Mangler"
1537 ++ [ input_fn, output_fn ]
1541 -----------------------------------------------------------------------------
1544 run_phase SplitMangle basename input_fn outputfn
1545 = do splitter <- readIORef pgm_s
1547 -- this is the prefix used for the split .s files
1548 tmp_pfx <- readIORef tmp_prefix
1550 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
1551 writeIORef split_prefix split_s_prefix
1552 add files_to_clean (split_s_prefix ++ "__*") -- d:-)
1554 -- allocate a tmp file to put the no. of split .s files in (sigh)
1555 n_files <- newTempName "n_files"
1556 add files_to_clean n_files
1558 run_something "Split Assembly File"
1565 -- save the number of split files for future references
1566 s <- readFile n_files
1567 let n = read s :: Int
1568 writeIORef n_split_files n
1570 -----------------------------------------------------------------------------
1573 run_phase As basename input_fn output_fn
1574 = do as <- readIORef pgm_a
1575 as_opts <- getOpts opt_a
1577 cmdline_include_paths <- readIORef include_paths
1578 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
1579 run_something "Assembler"
1580 (unwords (as : as_opts
1581 ++ cmdline_include_flags
1582 ++ [ "-c", input_fn, "-o", output_fn ]
1585 run_phase SplitAs basename input_fn output_fn
1586 = do as <- readIORef pgm_a
1587 as_opts <- getOpts opt_a
1589 odir_opt <- readIORef output_dir
1590 let odir | Just s <- odir_opt = s
1591 | otherwise = basename
1593 split_s_prefix <- readIORef split_prefix
1594 n <- readIORef n_split_files
1596 odir <- readIORef output_dir
1597 let real_odir = case odir of
1601 let assemble_file n = do
1602 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
1603 let output_o = newdir real_odir
1604 (basename ++ "__" ++ show n ++ ".o")
1605 real_o <- osuf_ify output_o
1606 run_something "Assembler"
1607 (unwords (as : as_opts
1608 ++ [ "-c", "-o", real_o, input_s ]
1611 mapM_ assemble_file [1..n]
1613 -----------------------------------------------------------------------------
1616 do_link :: [String] -> [String] -> IO ()
1617 do_link o_files unknown_srcs = do
1618 ln <- readIORef pgm_l
1620 o_file <- readIORef output_file
1621 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
1623 pkg_lib_paths <- getPackageLibraryPath
1624 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
1626 lib_paths <- readIORef library_paths
1627 let lib_path_opts = map ("-L"++) lib_paths
1629 pkg_libs <- getPackageLibraries
1630 let pkg_lib_opts = map ("-l"++) pkg_libs
1632 libs <- readIORef cmdline_libraries
1633 let lib_opts = map ("-l"++) (reverse libs)
1634 -- reverse because they're added in reverse order from the cmd line
1636 pkg_extra_ld_opts <- getPackageExtraLdOpts
1638 -- probably _stub.o files
1639 extra_ld_inputs <- readIORef ld_inputs
1641 -- opts from -optl-<blah>
1642 extra_ld_opts <- getOpts opt_l
1644 run_something "Linker"
1646 ([ ln, verb, "-o", output_fn ]
1652 ++ pkg_lib_path_opts
1654 ++ pkg_extra_ld_opts
1659 -----------------------------------------------------------------------------
1660 -- Running an external program
1662 run_something phase_name cmd
1664 verb <- readIORef verbose
1673 n <- readIORef dry_run
1674 if n then return () else do
1677 exit_code <- system cmd `catchAllIO`
1678 (\e -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
1680 if exit_code /= ExitSuccess
1681 then throwDyn (PhaseFailed phase_name exit_code)
1682 else do on verb (putStr "\n")
1685 -----------------------------------------------------------------------------
1689 = NoArg (IO ()) -- flag with no argument
1690 | HasArg (String -> IO ()) -- flag has an argument (maybe prefix)
1691 | SepArg (String -> IO ()) -- flag has a separate argument
1692 | Prefix (String -> IO ()) -- flag is a prefix only
1693 | OptPrefix (String -> IO ()) -- flag may be a prefix
1694 | AnySuffix (String -> IO ()) -- flag is a prefix, pass whole arg to fn
1695 | PassFlag (String -> IO ()) -- flag with no arg, pass flag to fn
1697 -- note that ordering is important in the following list: any flag which
1698 -- is a prefix flag (i.e. HasArg, Prefix, OptPrefix, AnySuffix) will override
1699 -- flags further down the list with the same prefix.
1702 [ ------- help -------------------------------------------------------
1703 ( "?" , NoArg long_usage)
1704 , ( "-help" , NoArg long_usage)
1707 ------- version ----------------------------------------------------
1708 , ( "-version" , NoArg (do hPutStrLn stderr (cProjectName
1709 ++ ", version " ++ version_str)
1710 exitWith ExitSuccess))
1711 , ( "-numeric-version", NoArg (do hPutStrLn stderr version_str
1712 exitWith ExitSuccess))
1714 ------- verbosity ----------------------------------------------------
1715 , ( "v" , NoArg (writeIORef verbose True) )
1716 , ( "n" , NoArg (writeIORef dry_run True) )
1718 ------- recompilation checker --------------------------------------
1719 , ( "recomp" , NoArg (writeIORef recomp True) )
1720 , ( "no-recomp" , NoArg (writeIORef recomp False) )
1722 ------- ways --------------------------------------------------------
1723 , ( "prof" , NoArg (addNoDups ways WayProf) )
1724 , ( "unreg" , NoArg (addNoDups ways WayUnreg) )
1725 , ( "ticky" , NoArg (addNoDups ways WayTicky) )
1726 , ( "parallel" , NoArg (addNoDups ways WayPar) )
1727 , ( "gransim" , NoArg (addNoDups ways WayGran) )
1728 , ( "smp" , NoArg (addNoDups ways WaySMP) )
1729 , ( "debug" , NoArg (addNoDups ways WayDebug) )
1732 ------- Interface files ---------------------------------------------
1733 , ( "hi" , NoArg (writeIORef produceHi True) )
1734 , ( "nohi" , NoArg (writeIORef produceHi False) )
1735 , ( "hi-diffs" , NoArg (writeIORef hi_diffs NormalHiDiffs) )
1736 , ( "no-hi-diffs" , NoArg (writeIORef hi_diffs NoHiDiffs) )
1737 , ( "hi-diffs-with-usages" , NoArg (writeIORef hi_diffs UsageHiDiffs) )
1738 , ( "keep-hi-diffs" , NoArg (writeIORef keep_hi_diffs True) )
1739 --"hi-with-*" -> hiw <- readIORef hi_with (ToDo)
1741 --------- Profiling --------------------------------------------------
1742 , ( "auto-dicts" , NoArg (add opt_C "-fauto-sccs-on-dicts") )
1743 , ( "auto-all" , NoArg (add opt_C "-fauto-sccs-on-all-toplevs") )
1744 , ( "auto" , NoArg (add opt_C "-fauto-sccs-on-exported-toplevs") )
1745 , ( "caf-all" , NoArg (add opt_C "-fauto-sccs-on-individual-cafs") )
1746 -- "ignore-sccs" doesn't work (ToDo)
1748 ------- Miscellaneous -----------------------------------------------
1749 , ( "cpp" , NoArg (writeIORef cpp_flag True) )
1750 , ( "#include" , HasArg (add cmdline_hc_includes) )
1751 , ( "no-link-chk" , NoArg (return ()) ) -- ignored for backwards compat
1753 ------- Output Redirection ------------------------------------------
1754 , ( "odir" , HasArg (writeIORef output_dir . Just) )
1755 , ( "o" , SepArg (writeIORef output_file . Just) )
1756 , ( "osuf" , HasArg (writeIORef output_suf . Just) )
1757 , ( "hisuf" , HasArg (writeIORef hi_suf) )
1758 , ( "tmpdir" , HasArg (writeIORef tmp_prefix . (++ "/")) )
1759 , ( "ohi" , HasArg (\s -> case s of
1760 "-" -> writeIORef hi_on_stdout True
1761 _ -> writeIORef output_hi (Just s)) )
1764 , ( "keep-hc-file" , AnySuffix (\_ -> writeIORef keep_hc_files True) )
1765 , ( "keep-s-file" , AnySuffix (\_ -> writeIORef keep_s_files True) )
1766 , ( "keep-raw-s-file", AnySuffix (\_ -> writeIORef keep_raw_s_files True) )
1768 , ( "split-objs" , NoArg (if can_split
1769 then do writeIORef split_object_files True
1770 add opt_C "-fglobalise-toplev-names"
1771 add opt_c "-DUSE_SPLIT_MARKERS"
1772 else hPutStrLn stderr
1773 "warning: don't know how to split \
1774 \object files on this architecture"
1777 ------- Include/Import Paths ----------------------------------------
1778 , ( "i" , OptPrefix augment_import_paths )
1779 , ( "I" , Prefix augment_include_paths )
1781 ------- Libraries ---------------------------------------------------
1782 , ( "L" , Prefix augment_library_paths )
1783 , ( "l" , Prefix (add cmdline_libraries) )
1785 ------- Packages ----------------------------------------------------
1786 , ( "package-name" , HasArg (\s -> add opt_C ("-inpackage="++s)) )
1788 , ( "package" , HasArg (addPackage) )
1789 , ( "syslib" , HasArg (addPackage) ) -- for compatibility w/ old vsns
1791 , ( "-list-packages" , NoArg (listPackages) )
1792 , ( "-add-package" , NoArg (newPackage) )
1793 , ( "-delete-package" , SepArg (deletePackage) )
1795 ------- Specific phases --------------------------------------------
1796 , ( "pgmdep" , HasArg (writeIORef pgm_dep) )
1797 , ( "pgmL" , HasArg (writeIORef pgm_L) )
1798 , ( "pgmP" , HasArg (writeIORef pgm_P) )
1799 , ( "pgmC" , HasArg (writeIORef pgm_C) )
1800 , ( "pgmc" , HasArg (writeIORef pgm_c) )
1801 , ( "pgmm" , HasArg (writeIORef pgm_m) )
1802 , ( "pgms" , HasArg (writeIORef pgm_s) )
1803 , ( "pgma" , HasArg (writeIORef pgm_a) )
1804 , ( "pgml" , HasArg (writeIORef pgm_l) )
1806 , ( "optdep" , HasArg (add opt_dep) )
1807 , ( "optL" , HasArg (add opt_L) )
1808 , ( "optP" , HasArg (add opt_P) )
1809 , ( "optCrts" , HasArg (add opt_Crts) )
1810 , ( "optC" , HasArg (add opt_C) )
1811 , ( "optc" , HasArg (add opt_c) )
1812 , ( "optm" , HasArg (add opt_m) )
1813 , ( "opta" , HasArg (add opt_a) )
1814 , ( "optl" , HasArg (add opt_l) )
1815 , ( "optdll" , HasArg (add opt_dll) )
1817 ------ HsCpp opts ---------------------------------------------------
1818 , ( "D" , Prefix (\s -> add opt_P ("-D'"++s++"'") ) )
1819 , ( "U" , Prefix (\s -> add opt_P ("-U'"++s++"'") ) )
1821 ------ Warning opts -------------------------------------------------
1822 , ( "W" , NoArg (writeIORef warning_opt W_))
1823 , ( "Wall" , NoArg (writeIORef warning_opt W_all))
1824 , ( "Wnot" , NoArg (writeIORef warning_opt W_not))
1825 , ( "w" , NoArg (writeIORef warning_opt W_not))
1827 ----- Linker --------------------------------------------------------
1828 , ( "static" , NoArg (writeIORef static True) )
1830 ------ Compiler RTS options -----------------------------------------
1831 , ( "H" , HasArg (sizeOpt specific_heap_size) )
1832 , ( "K" , HasArg (sizeOpt specific_stack_size) )
1833 , ( "Rscale-sizes" , HasArg (floatOpt scale_sizes_by) )
1834 , ( "Rghc-timing" , NoArg (writeIORef collect_ghc_timing True) )
1836 ------ Debugging ----------------------------------------------------
1837 , ( "dstg-stats" , NoArg (writeIORef opt_StgStats True) )
1839 , ( "dno-" , Prefix (\s -> add anti_opt_C ("-d"++s)) )
1840 , ( "d" , AnySuffix (add opt_C) )
1842 ------ Machine dependant (-m<blah>) stuff ---------------------------
1844 , ( "monly-2-regs", NoArg (writeIORef stolen_x86_regs 2) )
1845 , ( "monly-3-regs", NoArg (writeIORef stolen_x86_regs 3) )
1846 , ( "monly-4-regs", NoArg (writeIORef stolen_x86_regs 4) )
1848 ------ Compiler flags -----------------------------------------------
1849 , ( "O2-for-C" , NoArg (writeIORef opt_minus_o2_for_C True) )
1850 , ( "O" , OptPrefix (setOptLevel) )
1852 , ( "fglasgow-exts-no-lang", NoArg ( do add opt_C "-fglasgow-exts") )
1854 , ( "fglasgow-exts" , NoArg (do add opt_C "-fglasgow-exts"
1857 , ( "fasm" , OptPrefix (\_ -> writeIORef hsc_lang HscAsm) )
1859 , ( "fvia-C" , NoArg (writeIORef hsc_lang HscC) )
1861 , ( "fno-asm-mangling" , NoArg (writeIORef do_asm_mangling False) )
1863 , ( "fmax-simplifier-iterations",
1864 Prefix (writeIORef opt_MaxSimplifierIterations . read) )
1866 , ( "fusagesp", NoArg (do writeIORef opt_UsageSPInf True
1867 add opt_C "-fusagesp-on") )
1869 -- flags that are "active negatives"
1870 , ( "fno-implicit-prelude" , PassFlag (add opt_C) )
1871 , ( "fno-prune-tydecls" , PassFlag (add opt_C) )
1872 , ( "fno-prune-instdecls" , PassFlag (add opt_C) )
1873 , ( "fno-pre-inlining" , PassFlag (add opt_C) )
1875 -- All other "-fno-<blah>" options cancel out "-f<blah>" on the hsc cmdline
1876 , ( "fno-", Prefix (\s -> add anti_opt_C ("-f"++s)) )
1878 -- Pass all remaining "-f<blah>" options to hsc
1879 , ( "f", AnySuffix (add opt_C) )
1882 -----------------------------------------------------------------------------
1883 -- Process command-line
1885 processArgs :: [String] -> [String] -> IO [String] -- returns spare args
1886 processArgs [] spare = return (reverse spare)
1887 processArgs args@(('-':_):_) spare = do
1888 args' <- processOneArg args
1889 processArgs args' spare
1890 processArgs (arg:args) spare =
1891 processArgs args (arg:spare)
1893 processOneArg :: [String] -> IO [String]
1894 processOneArg (('-':arg):args) = do
1895 let (rest,action) = findArg arg
1901 then io >> return args
1902 else throwDyn (UnknownFlag dash_arg)
1906 then fio rest >> return args
1908 [] -> throwDyn (UnknownFlag dash_arg)
1909 (arg1:args1) -> fio arg1 >> return args1
1913 [] -> throwDyn (UnknownFlag dash_arg)
1914 (arg1:args1) -> fio arg1 >> return args1
1918 then fio rest >> return args
1919 else throwDyn (UnknownFlag dash_arg)
1921 OptPrefix fio -> fio rest >> return args
1923 AnySuffix fio -> fio ('-':arg) >> return args
1927 then throwDyn (UnknownFlag dash_arg)
1928 else fio ('-':arg) >> return args
1930 findArg :: String -> (String,OptKind)
1932 = case [ (remove_spaces rest, k) | (pat,k) <- opts,
1933 Just rest <- [my_prefix_match pat arg],
1934 is_prefix k || null rest ] of
1935 [] -> throwDyn (UnknownFlag ('-':arg))
1938 is_prefix (NoArg _) = False
1939 is_prefix (SepArg _) = False
1940 is_prefix (PassFlag _) = False
1943 -----------------------------------------------------------------------------
1944 -- convert sizes like "3.5M" into integers
1946 sizeOpt :: IORef Integer -> String -> IO ()
1948 | c == "" = writeSizeOpt ref (truncate n)
1949 | c == "K" || c == "k" = writeSizeOpt ref (truncate (n * 1000))
1950 | c == "M" || c == "m" = writeSizeOpt ref (truncate (n * 1000 * 1000))
1951 | c == "G" || c == "g" = writeSizeOpt ref (truncate (n * 1000 * 1000 * 1000))
1952 | otherwise = throwDyn (UnknownFlag str)
1953 where (m, c) = span pred str
1954 n = read m :: Double
1955 pred c = isDigit c || c == '.'
1957 writeSizeOpt :: IORef Integer -> Integer -> IO ()
1958 writeSizeOpt ref new = do
1959 current <- readIORef ref
1961 then writeIORef ref new
1964 floatOpt :: IORef Double -> String -> IO ()
1966 = writeIORef ref (read str :: Double)
1968 -----------------------------------------------------------------------------
1969 -- Finding files in the installation
1971 GLOBAL_VAR(topDir, clibdir, String)
1973 -- grab the last -B option on the command line, and
1974 -- set topDir to its value.
1975 setTopDir :: [String] -> IO [String]
1977 let (minusbs, others) = partition (prefixMatch "-B") args
1979 [] -> writeIORef topDir clibdir
1980 some -> writeIORef topDir (drop 2 (last some)))
1983 findFile name alt_path = unsafePerformIO (do
1984 top_dir <- readIORef topDir
1985 let installed_file = top_dir ++ '/':name
1986 let inplace_file = top_dir ++ '/':cCURRENT_DIR ++ '/':alt_path
1987 b <- fileExist inplace_file
1988 if b then return inplace_file
1989 else return installed_file
1992 -----------------------------------------------------------------------------
1995 my_partition :: (a -> Maybe b) -> [a] -> ([b],[a])
1996 my_partition p [] = ([],[])
1997 my_partition p (a:as)
1998 = let (bs,cs) = my_partition p as in
2000 Nothing -> (bs,a:cs)
2003 my_prefix_match :: String -> String -> Maybe String
2004 my_prefix_match [] rest = Just rest
2005 my_prefix_match (p:pat) [] = Nothing
2006 my_prefix_match (p:pat) (r:rest)
2007 | p == r = my_prefix_match pat rest
2008 | otherwise = Nothing
2010 prefixMatch :: Eq a => [a] -> [a] -> Bool
2011 prefixMatch [] str = True
2012 prefixMatch pat [] = False
2013 prefixMatch (p:ps) (s:ss) | p == s = prefixMatch ps ss
2016 postfixMatch :: String -> String -> Bool
2017 postfixMatch pat str = prefixMatch (reverse pat) (reverse str)
2019 later = flip finally
2021 on b io = if b then io >> return (error "on") else return (error "on")
2023 my_catch = flip catchAllIO
2024 my_catchDyn = flip catchDyn
2026 global :: a -> IORef a
2027 global a = unsafePerformIO (newIORef a)
2029 split_filename :: String -> (String,String)
2030 split_filename f = (reverse rev_basename, reverse rev_ext)
2031 where (rev_ext, '.':rev_basename) = span ('.' /=) (reverse f)
2033 split :: Char -> String -> [String]
2034 split c s = case rest of
2036 _:rest -> chunk : split c rest
2037 where (chunk, rest) = break (==c) s
2039 add :: IORef [a] -> a -> IO ()
2042 writeIORef var (x:xs)
2044 addNoDups :: Eq a => IORef [a] -> a -> IO ()
2045 addNoDups var x = do
2047 if x `elem` xs then return () else writeIORef var (x:xs)
2049 remove_suffix :: String -> Char -> String
2051 | null pre = reverse suf
2052 | otherwise = reverse pre
2053 where (suf,pre) = break (==c) (reverse s)
2055 drop_longest_prefix :: String -> Char -> String
2056 drop_longest_prefix s c = reverse suf
2057 where (suf,pre) = break (==c) (reverse s)
2059 take_longest_prefix :: String -> Char -> String
2060 take_longest_prefix s c = reverse pre
2061 where (suf,pre) = break (==c) (reverse s)
2063 newsuf :: String -> String -> String
2064 newsuf suf s = remove_suffix s '.' ++ suf
2066 -- getdir strips the filename off the input string, returning the directory.
2067 getdir :: String -> String
2068 getdir s = if null dir then "." else init dir
2069 where dir = take_longest_prefix s '/'
2071 newdir :: String -> String -> String
2072 newdir dir s = dir ++ '/':drop_longest_prefix s '/'
2074 remove_spaces :: String -> String
2075 remove_spaces = reverse . dropWhile isSpace . reverse . dropWhile isSpace