1 -----------------------------------------------------------------------------
4 -- (c) Simon Marlow 2000
6 -----------------------------------------------------------------------------
8 module Main (main) where
27 #define GLOBAL_VAR(name,value,ty) \
28 name = global (value) :: IORef (ty); \
31 -----------------------------------------------------------------------------
34 -- time commands when run with -v
40 -- make sure OPTIONS in .hs file propogate to .hc file if -C or -keep-hc-file-too
42 -----------------------------------------------------------------------------
43 -- Differences vs. old driver:
45 -- No more "Enter your Haskell program, end with ^D (on a line of its own):"
46 -- consistency checking removed (may do this properly later)
48 -- no hi diffs (could be added later)
51 -----------------------------------------------------------------------------
52 -- non-configured things
54 cHaskell1Version = "5" -- i.e., Haskell 98
56 -----------------------------------------------------------------------------
60 hPutStr stderr "\nUsage: For basic information, try the `-help' option.\n"
64 let usage_filename = "ghc-usage.txt"
65 usage_dir = findFile usage_filename cGHC_DRIVER_DIR
66 usage <- readFile (usage_dir ++ "/" ++ usage_filename)
71 dump ('$':'$':s) = hPutStr stderr get_prog_name >> dump s
72 dump (c:s) = hPutChar stderr c >> dump s
74 version_str = cProjectVersion ++
75 ( if cProjectPatchLevel /= "0" && cProjectPatchLevel /= ""
76 then '.':cProjectPatchLevel
79 -----------------------------------------------------------------------------
83 Phase of the | Suffix saying | Flag saying | (suffix of)
84 compilation system | ``start here''| ``stop after''| output file
86 literate pre-processor | .lhs | - | -
87 C pre-processor (opt.) | - | -E | -
88 Haskell compiler | .hs | -C, -S | .hc, .s
89 C compiler (opt.) | .hc or .c | -S | .s
90 assembler | .s or .S | -c | .o
91 linker | other | - | a.out
95 = MkDependHS -- haskell dependency generation
100 | HCc -- Haskellised C (as opposed to vanilla C) compilation
101 | Mangle -- assembly mangling, now done by a separate script.
102 | SplitMangle -- after mangler if splitting
106 deriving (Eq,Ord,Enum,Ix,Show,Bounded)
108 initial_phase = Unlit
110 -----------------------------------------------------------------------------
114 = UnknownFileType String
117 | MultipleSrcsOneOutput
118 | UnknownPackage String
119 | WayCombinationNotSupported [WayName]
120 | PhaseFailed String ExitCode
125 GLOBAL_VAR(prog_name, "ghc", String)
127 get_prog_name = unsafePerformIO (readIORef prog_name) -- urk!
129 instance Show BarfKind where
131 = showString get_prog_name . showString ": " . showBarf e
133 showBarf AmbiguousPhase
134 = showString "only one of the flags -M, -E, -C, -S, -c is allowed"
135 showBarf (UnknownFileType s)
136 = showString "unknown file type, and linking not done: " . showString s
137 showBarf (UnknownFlag s)
138 = showString "unrecognised flag: " . showString s
139 showBarf MultipleSrcsOneOutput
140 = showString "can't apply -o option to multiple source files"
141 showBarf (UnknownPackage s)
142 = showString "unknown package name: " . showString s
143 showBarf (WayCombinationNotSupported ws)
144 = showString "combination not supported: "
145 . foldr1 (\a b -> a . showChar '/' . b)
146 (map (showString . wayName . lkupWay) ws)
147 showBarf (NoInputFiles)
148 = showString "no input files"
150 barfKindTc = mkTyCon "BarfKind"
152 instance Typeable BarfKind where
153 typeOf _ = mkAppTy barfKindTc []
155 -----------------------------------------------------------------------------
158 GLOBAL_VAR(files_to_clean, [], [String])
160 cleanTempFiles :: IO ()
162 fs <- readIORef files_to_clean
163 verb <- readIORef verbose
166 (do on verb (hPutStrLn stderr ("removing: " ++ f))
167 if '*' `elem` f then system ("rm -f " ++ f) >> return ()
170 (\e -> on verb (hPutStrLn stderr
171 ("warning: can't remove tmp file" ++ f)))
174 -----------------------------------------------------------------------------
175 -- Which phase to stop at
177 GLOBAL_VAR(stop_after, Ln, Phase)
179 end_phase_flag :: String -> Maybe Phase
180 end_phase_flag "-M" = Just MkDependHS
181 end_phase_flag "-E" = Just Cpp
182 end_phase_flag "-C" = Just Hsc
183 end_phase_flag "-S" = Just Mangle
184 end_phase_flag "-c" = Just As
185 end_phase_flag _ = Nothing
187 getStopAfter :: [String]
188 -> IO ( [String] -- rest of command line
189 , Phase -- stop after phase
190 , Bool -- do linking?
193 = case my_partition end_phase_flag flags of
194 ([] , rest) -> return (rest, As, True)
195 ([one], rest) -> return (rest, one, False)
196 (_ , rest) -> throwDyn AmbiguousPhase
198 -----------------------------------------------------------------------------
199 -- Global compilation flags
202 GLOBAL_VAR(cpp_flag, False, Bool)
203 hs_source_cpp_opts = global
204 [ "-D__HASKELL1__="++cHaskell1Version
205 , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
207 , "-D__CONCURRENT_HASKELL__"
210 -- Keep output from intermediate phases
211 GLOBAL_VAR(keep_hi_diffs, False, Bool)
212 GLOBAL_VAR(keep_hc_files, False, Bool)
213 GLOBAL_VAR(keep_s_files, False, Bool)
214 GLOBAL_VAR(keep_raw_s_files, False, Bool)
216 -- Compiler RTS options
217 GLOBAL_VAR(specific_heap_size, 6 * 1000 * 1000, Integer)
218 GLOBAL_VAR(specific_stack_size, 1000 * 1000, Integer)
219 GLOBAL_VAR(scale_sizes_by, 1.0, Double)
222 GLOBAL_VAR(verbose, False, Bool)
223 is_verbose = do v <- readIORef verbose; if v then return "-v" else return ""
226 GLOBAL_VAR(dry_run, False, Bool)
227 GLOBAL_VAR(recomp, True, Bool)
228 GLOBAL_VAR(tmp_prefix, cTMPDIR, String)
229 GLOBAL_VAR(stolen_x86_regs, 4, Int)
230 GLOBAL_VAR(static, True, Bool) -- ToDo: not for mingw32
231 GLOBAL_VAR(collect_ghc_timing, False, Bool)
232 GLOBAL_VAR(do_asm_mangling, True, Bool)
234 -----------------------------------------------------------------------------
235 -- Splitting object files (for libraries)
237 GLOBAL_VAR(split_object_files, False, Bool)
238 GLOBAL_VAR(split_prefix, "", String)
239 GLOBAL_VAR(n_split_files, 0, Int)
242 can_split = prefixMatch "i386" cTARGETPLATFORM
243 || prefixMatch "alpha" cTARGETPLATFORM
244 || prefixMatch "hppa" cTARGETPLATFORM
245 || prefixMatch "m68k" cTARGETPLATFORM
246 || prefixMatch "mips" cTARGETPLATFORM
247 || prefixMatch "powerpc" cTARGETPLATFORM
248 || prefixMatch "rs6000" cTARGETPLATFORM
249 || prefixMatch "sparc" cTARGETPLATFORM
251 -----------------------------------------------------------------------------
252 -- Compiler output options
259 GLOBAL_VAR(hsc_lang, if cGhcWithNativeCodeGen == "YES" &&
260 prefixMatch "i386" cTARGETPLATFORM
265 GLOBAL_VAR(output_dir, Nothing, Maybe String)
266 GLOBAL_VAR(output_suf, Nothing, Maybe String)
267 GLOBAL_VAR(output_file, Nothing, Maybe String)
268 GLOBAL_VAR(output_hi, Nothing, Maybe String)
270 GLOBAL_VAR(ld_inputs, [], [String])
272 odir_ify :: String -> IO String
274 odir_opt <- readIORef output_dir
277 Just d -> return (newdir d f)
279 osuf_ify :: String -> IO String
281 osuf_opt <- readIORef output_suf
284 Just s -> return (newsuf s f)
286 -----------------------------------------------------------------------------
289 GLOBAL_VAR(produceHi, True, Bool)
290 GLOBAL_VAR(hi_on_stdout, False, Bool)
291 GLOBAL_VAR(hi_with, "", String)
292 GLOBAL_VAR(hi_suf, "hi", String)
294 data HiDiffFlag = NormalHiDiffs | UsageHiDiffs | NoHiDiffs
295 GLOBAL_VAR(hi_diffs, NoHiDiffs, HiDiffFlag)
297 -----------------------------------------------------------------------------
298 -- Warnings & sanity checking
300 -- Warning packages that are controlled by -W and -Wall. The 'standard'
301 -- warnings that you get all the time are
303 -- -fwarn-overlapping-patterns
304 -- -fwarn-missing-methods
305 -- -fwarn-missing-fields
306 -- -fwarn-deprecations
307 -- -fwarn-duplicate-exports
309 -- these are turned off by -Wnot.
311 standardWarnings = [ "-fwarn-overlapping-patterns"
312 , "-fwarn-missing-methods"
313 , "-fwarn-missing-fields"
314 , "-fwarn-deprecations"
315 , "-fwarn-duplicate-exports"
317 minusWOpts = standardWarnings ++
318 [ "-fwarn-unused-binds"
319 , "-fwarn-unused-matches"
320 , "-fwarn-incomplete-patterns"
321 , "-fwarn-unused-imports"
323 minusWallOpts = minusWOpts ++
324 [ "-fwarn-type-defaults"
325 , "-fwarn-name-shadowing"
326 , "-fwarn-missing-signatures"
329 data WarningState = W_default | W_ | W_all | W_not
331 GLOBAL_VAR(warning_opt, W_default, WarningState)
333 -----------------------------------------------------------------------------
334 -- Compiler optimisation options
336 GLOBAL_VAR(opt_level, 0, Int)
338 setOptLevel :: String -> IO ()
339 setOptLevel "" = do { writeIORef opt_level 1; go_via_C }
340 setOptLevel "not" = writeIORef opt_level 0
341 setOptLevel [c] | isDigit c = do
342 let level = ord c - ord '0'
343 writeIORef opt_level level
344 on (level >= 1) go_via_C
345 setOptLevel s = throwDyn (UnknownFlag ("-O"++s))
348 l <- readIORef hsc_lang
349 case l of { HscAsm -> writeIORef hsc_lang HscC;
350 _other -> return () }
352 GLOBAL_VAR(opt_minus_o2_for_C, False, Bool)
354 GLOBAL_VAR(opt_MaxSimplifierIterations, 4, Int)
355 GLOBAL_VAR(opt_StgStats, False, Bool)
356 GLOBAL_VAR(opt_UsageSPInf, False, Bool) -- Off by default
358 hsc_minusO2_flags = hsc_minusO_flags -- for now
360 hsc_minusNoO_flags = do
361 iter <- readIORef opt_MaxSimplifierIterations
363 "-fignore-interface-pragmas",
364 "-fomit-interface-pragmas",
367 "-fmax-simplifier-iterations" ++ show iter,
371 hsc_minusO_flags = do
372 iter <- readIORef opt_MaxSimplifierIterations
373 usageSP <- readIORef opt_UsageSPInf
374 stgstats <- readIORef opt_StgStats
379 "-fdo-eta-reduction",
380 "-fdo-lambda-eta-expansion",
385 -- initial simplify: mk specialiser happy: minimum effort please
390 -- Don't inline anything till full laziness has bitten
391 -- In particular, inlining wrappers inhibits floating
392 -- e.g. ...(case f x of ...)...
393 -- ==> ...(case (case x of I# x# -> fw x#) of ...)...
394 -- ==> ...(case x of I# x# -> case fw x# of ...)...
395 -- and now the redex (f x) isn't floatable any more
398 -- Similarly, don't apply any rules until after full
399 -- laziness. Notably, list fusion can prevent floating.
402 -- Don't do case-of-case transformations.
403 -- This makes full laziness work better
405 "-fmax-simplifier-iterations2",
408 -- Specialisation is best done before full laziness
409 -- so that overloaded functions have all their dictionary lambdas manifest
418 -- Want to run with inline phase 1 after the specialiser to give
419 -- maximum chance for fusion to work before we inline build/augment
420 -- in phase 2. This made a difference in 'ansi' where an
421 -- overloaded function wasn't inlined till too late.
422 "-fmax-simplifier-iterations" ++ show iter,
425 -- infer usage information here in case we need it later.
426 -- (add more of these where you need them --KSW 1999-04)
427 if usageSP then "-fusagesp" else "",
431 -- Need inline-phase2 here so that build/augment get
432 -- inlined. I found that spectral/hartel/genfft lost some useful
433 -- strictness in the function sumcode' if augment is not inlined
434 -- before strictness analysis runs
437 "-fmax-simplifier-iterations2",
443 "-fmax-simplifier-iterations2",
444 -- No -finline-phase: allow all Ids to be inlined now
445 -- This gets foldr inlined before strictness analysis
454 "-fmax-simplifier-iterations" ++ show iter,
455 -- No -finline-phase: allow all Ids to be inlined now
459 -- nofib/spectral/hartel/wang doubles in speed if you
460 -- do full laziness late in the day. It only happens
461 -- after fusion and other stuff, so the early pass doesn't
462 -- catch it. For the record, the redex is
463 -- f_el22 (f_el21 r_midblock)
465 -- Leave out lambda lifting for now
466 -- "-fsimplify", -- Tidy up results of full laziness
468 -- "-fmax-simplifier-iterations2",
470 -- "-ffloat-outwards-full",
472 -- We want CSE to follow the final full-laziness pass, because it may
473 -- succeed in commoning up things floated out by full laziness.
475 -- CSE must immediately follow a simplification pass, because it relies
476 -- on the no-shadowing invariant. See comments at the top of CSE.lhs
477 -- So it must NOT follow float-inwards, which can give rise to shadowing,
478 -- even if its input doesn't have shadows. Hence putting it between
485 -- Case-liberation for -O2. This should be after
486 -- strictness analysis and the simplification which follows it.
488 -- ( ($OptLevel != 2)
490 -- : "-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 ]" ),
492 -- "-fliberate-case",
494 -- Final clean-up simplification:
497 "-fmax-simplifier-iterations" ++ show iter,
498 -- No -finline-phase: allow all Ids to be inlined now
503 -----------------------------------------------------------------------------
506 split_marker = ':' -- not configurable
508 import_paths, include_paths, library_paths :: IORef [String]
509 GLOBAL_VAR(import_paths, ["."], [String])
510 GLOBAL_VAR(include_paths, ["."], [String])
511 GLOBAL_VAR(library_paths, [], [String])
513 GLOBAL_VAR(cmdline_libraries, [], [String])
514 GLOBAL_VAR(cmdline_hc_includes, [], [String])
516 augment_import_paths :: String -> IO ()
517 augment_import_paths "" = writeIORef import_paths []
518 augment_import_paths path
519 = do paths <- readIORef import_paths
520 writeIORef import_paths (paths ++ dirs)
521 where dirs = split split_marker path
523 augment_include_paths :: String -> IO ()
524 augment_include_paths path
525 = do paths <- readIORef include_paths
526 writeIORef include_paths (paths ++ split split_marker path)
528 augment_library_paths :: String -> IO ()
529 augment_library_paths path
530 = do paths <- readIORef library_paths
531 writeIORef library_paths (paths ++ split split_marker path)
533 -----------------------------------------------------------------------------
536 -- package list is maintained in dependency order
537 packages = global ["std", "rts", "gmp"] :: IORef [String]
538 -- comma in value, so can't use macro, grrr
539 {-# NOINLINE packages #-}
541 addPackage :: String -> IO ()
543 = do pkg_details <- readIORef package_details
544 case lookup package pkg_details of
545 Nothing -> throwDyn (UnknownPackage package)
547 ps <- readIORef packages
550 else do mapM_ addPackage (package_deps details)
551 ps <- readIORef packages
552 writeIORef packages (package:ps)
554 getPackageImportPath :: IO [String]
555 getPackageImportPath = do
556 ps <- readIORef packages
557 ps' <- getPackageDetails ps
558 return (nub (concat (map import_dirs ps')))
560 getPackageIncludePath :: IO [String]
561 getPackageIncludePath = do
562 ps <- readIORef packages
563 ps' <- getPackageDetails ps
564 return (nub (filter (not.null) (map include_dir ps')))
566 -- includes are in reverse dependency order (i.e. rts first)
567 getPackageCIncludes :: IO [String]
568 getPackageCIncludes = do
569 ps <- readIORef packages
570 ps' <- getPackageDetails ps
571 return (reverse (nub (filter (not.null) (map c_include ps'))))
573 getPackageLibraryPath :: IO [String]
574 getPackageLibraryPath = do
575 ps <- readIORef packages
576 ps' <- getPackageDetails ps
577 return (nub (concat (map library_dirs ps')))
579 getPackageLibraries :: IO [String]
580 getPackageLibraries = do
581 ps <- readIORef packages
582 ps' <- getPackageDetails ps
583 tag <- readIORef build_tag
584 let suffix = if null tag then "" else '_':tag
585 return (concat (map libraries ps'))
587 getPackageExtraGhcOpts :: IO [String]
588 getPackageExtraGhcOpts = do
589 ps <- readIORef packages
590 ps' <- getPackageDetails ps
591 return (map extra_ghc_opts ps')
593 getPackageExtraCcOpts :: IO [String]
594 getPackageExtraCcOpts = do
595 ps <- readIORef packages
596 ps' <- getPackageDetails ps
597 return (map extra_cc_opts ps')
599 getPackageExtraLdOpts :: IO [String]
600 getPackageExtraLdOpts = do
601 ps <- readIORef packages
602 ps' <- getPackageDetails ps
603 return (map extra_ld_opts ps')
605 getPackageDetails ps = do
606 pkg_details <- readIORef package_details
607 let getDetails p = case lookup p pkg_details of
608 Just details -> return details
609 Nothing -> error "getPackageDetails"
612 GLOBAL_VAR(package_details, (error "package_details"), [(String,Package)])
614 -----------------------------------------------------------------------------
617 -- The central concept of a "way" is that all objects in a given
618 -- program must be compiled in the same "way". Certain options change
619 -- parameters of the virtual machine, eg. profiling adds an extra word
620 -- to the object header, so profiling objects cannot be linked with
621 -- non-profiling objects.
623 -- After parsing the command-line options, we determine which "way" we
624 -- are building - this might be a combination way, eg. profiling+ticky-ticky.
626 -- We then find the "build-tag" associated with this way, and this
627 -- becomes the suffix used to find .hi files and libraries used in
630 GLOBAL_VAR(build_tag, "", String)
659 GLOBAL_VAR(ways, [] ,[WayName])
661 allowed_combinations =
662 [ [WayProf,WayUnreg],
663 [WayProf,WaySMP] -- works???
666 findBuildTag :: IO [String] -- new options
668 way_names <- readIORef ways
669 case sort way_names of
670 [] -> do writeIORef build_tag ""
673 [w] -> do let details = lkupWay w
674 writeIORef build_tag (wayTag details)
675 return (wayOpts details)
677 ws -> if ws `notElem` allowed_combinations
678 then throwDyn (WayCombinationNotSupported ws)
679 else let stuff = map lkupWay ws
680 tag = concat (map wayTag stuff)
681 flags = map wayOpts stuff
683 writeIORef build_tag tag
684 return (concat flags)
687 case lookup w way_details of
688 Nothing -> error "findBuildTag"
689 Just details -> details
697 way_details :: [ (WayName, Way) ]
699 [ (WayProf, Way "p" "Profiling"
702 , "-optc-DPROFILING" ]),
704 (WayTicky, Way "t" "Ticky-ticky Profiling"
707 , "-optc-DTICKY_TICKY" ]),
709 (WayUnreg, Way "u" "Unregisterised"
711 , "-optc-DUSE_MINIINTERPRETER"
712 , "-fno-asm-mangling"
713 , "-funregisterised" ]),
715 (WayPar, Way "mp" "Parallel"
718 , "-D__PARALLEL_HASKELL__"
720 , "-package concurrent" ]),
722 (WayGran, Way "mg" "Gransim"
727 , "-package concurrent" ]),
729 (WaySMP, Way "s" "SMP"
735 (WayUser_a, Way "a" "User way 'a'" ["$WAY_a_REAL_OPTS"]),
736 (WayUser_b, Way "b" "User way 'b'" ["$WAY_b_REAL_OPTS"]),
737 (WayUser_c, Way "c" "User way 'c'" ["$WAY_c_REAL_OPTS"]),
738 (WayUser_d, Way "d" "User way 'd'" ["$WAY_d_REAL_OPTS"]),
739 (WayUser_e, Way "e" "User way 'e'" ["$WAY_e_REAL_OPTS"]),
740 (WayUser_f, Way "f" "User way 'f'" ["$WAY_f_REAL_OPTS"]),
741 (WayUser_g, Way "g" "User way 'g'" ["$WAY_g_REAL_OPTS"]),
742 (WayUser_h, Way "h" "User way 'h'" ["$WAY_h_REAL_OPTS"]),
743 (WayUser_i, Way "i" "User way 'i'" ["$WAY_i_REAL_OPTS"]),
744 (WayUser_j, Way "j" "User way 'j'" ["$WAY_j_REAL_OPTS"]),
745 (WayUser_k, Way "k" "User way 'k'" ["$WAY_k_REAL_OPTS"]),
746 (WayUser_l, Way "l" "User way 'l'" ["$WAY_l_REAL_OPTS"]),
747 (WayUser_m, Way "m" "User way 'm'" ["$WAY_m_REAL_OPTS"]),
748 (WayUser_n, Way "n" "User way 'n'" ["$WAY_n_REAL_OPTS"]),
749 (WayUser_o, Way "o" "User way 'o'" ["$WAY_o_REAL_OPTS"]),
750 (WayUser_A, Way "A" "User way 'A'" ["$WAY_A_REAL_OPTS"]),
751 (WayUser_B, Way "B" "User way 'B'" ["$WAY_B_REAL_OPTS"])
754 -----------------------------------------------------------------------------
755 -- Programs for particular phases
757 GLOBAL_VAR(pgm_dep, findFile "mkdependHS" cGHC_MKDEPENDHS, String)
758 GLOBAL_VAR(pgm_L, findFile "unlit" cGHC_UNLIT, String)
759 GLOBAL_VAR(pgm_P, cRAWCPP, String)
760 GLOBAL_VAR(pgm_C, findFile "hsc" cGHC_HSC, String)
761 GLOBAL_VAR(pgm_c, cGCC, String)
762 GLOBAL_VAR(pgm_m, findFile "ghc-asm" cGHC_MANGLER, String)
763 GLOBAL_VAR(pgm_s, findFile "ghc-split" cGHC_SPLIT, String)
764 GLOBAL_VAR(pgm_a, cGCC, String)
765 GLOBAL_VAR(pgm_l, cGCC, String)
767 -----------------------------------------------------------------------------
768 -- Options for particular phases
770 GLOBAL_VAR(opt_dep, [], [String])
771 GLOBAL_VAR(opt_L, [], [String])
772 GLOBAL_VAR(opt_P, [], [String])
773 GLOBAL_VAR(opt_C, [], [String])
774 GLOBAL_VAR(opt_Crts, [], [String])
775 GLOBAL_VAR(opt_c, [], [String])
776 GLOBAL_VAR(opt_a, [], [String])
777 GLOBAL_VAR(opt_m, [], [String])
778 GLOBAL_VAR(opt_l, [], [String])
779 GLOBAL_VAR(opt_dll, [], [String])
781 -- we add to the options from the front, so we need to reverse the list
782 getOpts :: IORef [String] -> IO [String]
783 getOpts opts = readIORef opts >>= return . reverse
785 GLOBAL_VAR(anti_opt_C, [], [String])
787 -----------------------------------------------------------------------------
788 -- Via-C compilation stuff
790 -- flags returned are: ( all C compilations
791 -- , registerised HC compilations
795 | prefixMatch "alpha" cTARGETPLATFORM
796 = return ( ["-static"], [] )
798 | prefixMatch "hppa" cTARGETPLATFORM
799 -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
800 -- (very nice, but too bad the HP /usr/include files don't agree.)
801 = return ( ["-static", "-D_HPUX_SOURCE"], [] )
803 | prefixMatch "m68k" cTARGETPLATFORM
804 -- -fno-defer-pop : for the .hc files, we want all the pushing/
805 -- popping of args to routines to be explicit; if we let things
806 -- be deferred 'til after an STGJUMP, imminent death is certain!
808 -- -fomit-frame-pointer : *don't*
809 -- It's better to have a6 completely tied up being a frame pointer
810 -- rather than let GCC pick random things to do with it.
811 -- (If we want to steal a6, then we would try to do things
812 -- as on iX86, where we *do* steal the frame pointer [%ebp].)
813 = return ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] )
815 | prefixMatch "i386" cTARGETPLATFORM
816 -- -fno-defer-pop : basically the same game as for m68k
818 -- -fomit-frame-pointer : *must* in .hc files; because we're stealing
819 -- the fp (%ebp) for our register maps.
820 = do n_regs <- readIORef stolen_x86_regs
821 sta <- readIORef static
822 return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else "" ],
823 [ "-fno-defer-pop", "-fomit-frame-pointer",
824 "-DSTOLEN_X86_REGS="++show n_regs ]
827 | prefixMatch "mips" cTARGETPLATFORM
828 = return ( ["static"], [] )
830 | prefixMatch "powerpc" cTARGETPLATFORM || prefixMatch "rs6000" cTARGETPLATFORM
831 = return ( ["static"], ["-finhibit-size-directive"] )
836 -----------------------------------------------------------------------------
837 -- Build the Hsc command line
839 build_hsc_opts :: IO [String]
841 opt_C_ <- getOpts opt_C -- misc hsc opts
844 warn_level <- readIORef warning_opt
845 let warn_opts = case warn_level of
846 W_default -> standardWarnings
848 W_all -> minusWallOpts
852 minus_o <- readIORef opt_level
855 0 -> hsc_minusNoO_flags
856 1 -> hsc_minusO_flags
857 2 -> hsc_minusO2_flags
861 ways_ <- readIORef ways
862 let stg_massage | WayProf `elem` ways_ = "-fmassage-stg-for-profiling"
865 stg_stats <- readIORef opt_StgStats
866 let stg_stats_flag | stg_stats = "-dstg-stats"
869 let stg_opts = [ stg_massage, stg_stats_flag, "-flet-no-escape" ]
870 -- let-no-escape always on for now
873 let hi_vers = "-fhi-version="++cProjectVersionInt
874 static <- (do s <- readIORef static; if s then return "-static" else return "")
876 l <- readIORef hsc_lang
879 HscAsm -> "-olang=asm"
880 HscJava -> "-olang=java"
882 -- get hi-file suffix
883 hisuf <- readIORef hi_suf
885 -- hi-suffix for packages depends on the build tag.
887 do tag <- readIORef build_tag
890 else return (tag ++ "_hi")
892 import_dirs <- readIORef import_paths
893 package_import_dirs <- getPackageImportPath
895 let hi_map = "-himap=" ++
896 makeHiMap import_dirs hisuf
897 package_import_dirs package_hisuf
900 hi_map_sep = "-himap-sep=" ++ [split_marker]
902 scale <- readIORef scale_sizes_by
903 heap <- readIORef specific_heap_size
904 stack <- readIORef specific_stack_size
905 cmdline_rts_opts <- getOpts opt_Crts
906 let heap' = truncate (fromIntegral heap * scale) :: Integer
907 stack' = truncate (fromIntegral stack * scale) :: Integer
908 rts_opts = [ "+RTS", "-H"++show heap', "-K"++show stack' ]
909 ++ cmdline_rts_opts ++ [ "-RTS" ]
911 -- take into account -fno-* flags by removing the equivalent -f*
912 -- flag from our list.
913 anti_flags <- getOpts anti_opt_C
914 let basic_opts = opt_C_ ++ warn_opts ++ optimisation_opts ++ stg_opts
915 filtered_opts = filter (`notElem` anti_flags) basic_opts
920 -- ToDo: C stub files
921 ++ [ hi_vers, static, verb, lang, hi_map, hi_map_sep ]
926 (import_dirs :: [String])
927 (hi_suffix :: String)
928 (package_import_dirs :: [String])
929 (package_hi_suffix :: String)
930 (split_marker :: Char)
931 = foldr (add_dir hi_suffix)
932 (foldr (add_dir package_hi_suffix) "" package_import_dirs)
935 add_dir hisuf dir str = dir ++ "%." ++ hisuf ++ split_marker : str
939 :: String -- input file
940 -> IO [String] -- options, if any
941 getOptionsFromSource file
942 = do h <- openFile file ReadMode
948 () | null l -> look h
949 | prefixMatch "#" l -> look h
950 | prefixMatch "{-# LINE" l -> look h
951 | Just (opts:_) <- matchRegex optionRegex l
952 -> return (words opts)
953 | otherwise -> return []
955 optionRegex = mkRegex "{-#[ \t]+OPTIONS[ \t]+(.*)#-}"
957 -----------------------------------------------------------------------------
960 get_source_files :: [String] -> ([String],[String])
961 get_source_files = partition (('-' /=) . head)
963 suffixes :: [(String,Phase)]
975 phase_input_ext Unlit = "lhs"
976 phase_input_ext Cpp = "lpp"
977 phase_input_ext Hsc = "cpp"
978 phase_input_ext HCc = "hc"
979 phase_input_ext Cc = "c"
980 phase_input_ext Mangle = "raw_s"
981 phase_input_ext SplitMangle = "split_s" -- not really generated
982 phase_input_ext As = "s"
983 phase_input_ext SplitAs = "split_s" -- not really generated
984 phase_input_ext Ln = "o"
986 find_phase :: String -> ([(Phase,String)], [String])
987 -> ([(Phase,String)], [String])
988 find_phase f (phase_srcs, unknown_srcs)
989 = case lookup ext suffixes of
990 Just the_phase -> ((the_phase,f):phase_srcs, unknown_srcs)
991 Nothing -> (phase_srcs, f:unknown_srcs)
992 where (basename,ext) = split_filename f
995 find_phases srcs = (phase_srcs, unknown_srcs)
996 where (phase_srcs, unknown_srcs) = foldr find_phase ([],[]) srcs
999 -- all error messages are propagated as exceptions
1000 my_catchDyn (\dyn -> case dyn of
1001 PhaseFailed phase code -> exitWith code
1002 Interrupted -> exitWith (ExitFailure 1)
1003 _ -> do hPutStrLn stderr (show (dyn :: BarfKind))
1004 exitWith (ExitFailure 1)) $
1006 later cleanTempFiles $
1007 -- exceptions will be blocked while we clean the temporary files,
1008 -- so there shouldn't be any difficulty if we receive further
1012 -- install signal handlers
1013 main_thread <- myThreadId
1014 let sig_handler = Catch (raiseInThread main_thread
1015 (DynException (toDyn Interrupted)))
1016 installHandler sigQUIT sig_handler Nothing
1017 installHandler sigINT sig_handler Nothing
1020 writeIORef prog_name pgm
1024 -- grab any -B options from the command line first
1025 argv' <- setTopDir argv
1027 -- read the package configuration
1028 let conf = findFile "package.conf" (cGHC_DRIVER_DIR++"/package.conf.inplace")
1029 contents <- readFile conf
1030 writeIORef package_details (read contents)
1032 -- find the phase to stop after (i.e. -E, -C, -c, -S flags)
1033 (flags2, stop_phase, do_linking) <- getStopAfter argv'
1035 -- process all the other arguments, and get the source files
1036 srcs <- processArgs flags2 []
1038 -- find the build tag, and re-process the build-specific options
1039 more_opts <- findBuildTag
1040 _ <- processArgs more_opts []
1042 if stop_phase == MkDependHS -- mkdependHS is special
1043 then do_mkdependHS flags2 srcs
1046 -- for each source file, find which phase to start at
1047 let (phase_srcs, unknown_srcs) = find_phases srcs
1049 o_file <- readIORef output_file
1050 if isJust o_file && not do_linking && length phase_srcs > 1
1051 then throwDyn MultipleSrcsOneOutput
1054 if null unknown_srcs && null phase_srcs
1055 then throwDyn NoInputFiles
1058 -- if we have unknown files, and we're not doing linking, complain
1059 -- (otherwise pass them through to the linker).
1060 if not (null unknown_srcs) && not do_linking
1061 then throwDyn (UnknownFileType (head unknown_srcs))
1064 let compileFile :: (Phase, String) -> IO String
1065 compileFile (phase, src) = do
1066 let (orig_base, _) = split_filename src
1067 if phase < Ln -- anything to do?
1068 then run_pipeline stop_phase do_linking True orig_base (phase,src)
1071 o_files <- mapM compileFile phase_srcs
1074 then do_link o_files unknown_srcs
1078 -- The following compilation pipeline algorithm is fairly hacky. A
1079 -- better way to do this would be to express the whole comilation as a
1080 -- data flow DAG, where the nodes are the intermediate files and the
1081 -- edges are the compilation phases. This framework would also work
1082 -- nicely if a haskell dependency generator was included in the
1085 -- It would also deal much more cleanly with compilation phases that
1086 -- generate multiple intermediates, (eg. hsc generates .hc, .hi, and
1087 -- possibly stub files), where some of the output files need to be
1088 -- processed further (eg. the stub files need to be compiled by the C
1091 -- A cool thing to do would then be to execute the data flow graph
1092 -- concurrently, automatically taking advantage of extra processors on
1093 -- the host machine. For example, when compiling two Haskell files
1094 -- where one depends on the other, the data flow graph would determine
1095 -- that the C compiler from the first comilation can be overlapped
1096 -- with the hsc comilation for the second file.
1099 :: Phase -- phase to end on (never Linker)
1100 -> Bool -- doing linking afterward?
1101 -> Bool -- take into account -o when generating output?
1102 -> String -- original basename (eg. Main)
1103 -> (Phase, String) -- phase to run, input file
1104 -> IO String -- return final filename
1106 run_pipeline last_phase do_linking use_ofile orig_basename (phase, input_fn)
1107 | phase > last_phase = return input_fn
1111 let (basename,ext) = split_filename input_fn
1113 split <- readIORef split_object_files
1114 mangle <- readIORef do_asm_mangling
1115 lang <- readIORef hsc_lang
1117 -- figure out what the next phase is. This is
1118 -- straightforward, apart from the fact that hsc can generate
1119 -- either C or assembler direct, and assembly mangling is
1120 -- optional, and splitting involves one extra phase and an alternate
1126 HscAsm | split -> SplitMangle
1129 HCc | mangle -> Mangle
1134 Mangle | not split -> As
1135 SplitMangle -> SplitAs
1141 -- filename extension for the output, determined by next_phase
1142 let new_ext = phase_input_ext next_phase
1144 -- Figure out what the output from this pass should be called.
1146 -- If we're keeping the output from this phase, then we just save
1147 -- it in the current directory, otherwise we generate a new temp file.
1148 keep_s <- readIORef keep_s_files
1149 keep_raw_s <- readIORef keep_raw_s_files
1150 keep_hc <- readIORef keep_hc_files
1151 let keep_this_output =
1154 Mangle | keep_raw_s -> True -- first enhancement :)
1156 Cc | keep_hc -> True
1160 (if phase == last_phase && not do_linking && use_ofile
1161 then do o_file <- readIORef output_file
1165 f <- odir_ify (orig_basename ++ '.':new_ext)
1168 -- .o files are always kept. .s files and .hc file may be kept.
1169 else if keep_this_output
1170 then odir_ify (orig_basename ++ '.':new_ext)
1171 else do filename <- newTempName new_ext
1172 add files_to_clean filename
1176 run_phase phase orig_basename input_fn output_fn
1178 -- sadly, ghc -E is supposed to write the file to stdout. We
1179 -- generate <file>.cpp, so we also have to cat the file here.
1180 if (next_phase > last_phase && last_phase == Cpp)
1181 then run_something "Dump pre-processed file to stdout"
1182 ("cat " ++ output_fn)
1185 run_pipeline last_phase do_linking use_ofile
1186 orig_basename (next_phase, output_fn)
1189 -- find a temporary name that doesn't already exist.
1190 newTempName :: String -> IO String
1191 newTempName extn = do
1193 tmp_dir <- readIORef tmp_prefix
1194 findTempName tmp_dir x
1195 where findTempName tmp_dir x = do
1196 let filename = tmp_dir ++ "/ghc" ++ show x ++ '.':extn
1197 b <- fileExist filename
1198 if b then findTempName tmp_dir (x+1)
1199 else return filename
1201 -------------------------------------------------------------------------------
1204 do_mkdependHS :: [String] -> [String] -> IO ()
1205 do_mkdependHS cmd_opts srcs = do
1207 let quote_include_opt o | prefixMatch "-#include" o = "'" ++ o ++ "'"
1210 mkdependHS <- readIORef pgm_dep
1211 mkdependHS_opts <- getOpts opt_dep
1212 hs_src_cpp_opts <- readIORef hs_source_cpp_opts
1214 run_something "Dependency generation"
1215 (unwords (mkdependHS :
1218 ++ ("--" : map quote_include_opt cmd_opts )
1222 -------------------------------------------------------------------------------
1225 run_phase Unlit basename input_fn output_fn
1226 = do unlit <- readIORef pgm_L
1227 unlit_flags <- getOpts opt_L
1228 run_something "Literate pre-processor"
1229 ("echo '# 1 \"" ++input_fn++"\"' > "++output_fn++" && "
1230 ++ unlit ++ ' ':input_fn ++ " - >> " ++ output_fn)
1232 -------------------------------------------------------------------------------
1235 run_phase Cpp basename input_fn output_fn
1236 = do src_opts <- getOptionsFromSource input_fn
1237 processArgs src_opts []
1239 do_cpp <- readIORef cpp_flag
1242 cpp <- readIORef pgm_P
1243 hscpp_opts <- getOpts opt_P
1244 hs_src_cpp_opts <- readIORef hs_source_cpp_opts
1246 cmdline_include_paths <- readIORef include_paths
1247 pkg_include_dirs <- getPackageIncludePath
1248 let include_paths = map (\p -> "-I"++p) (cmdline_include_paths
1249 ++ pkg_include_dirs)
1252 run_something "C pre-processor"
1254 (["echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}'", ">", output_fn, "&&",
1259 ++ [ "-x", "c", input_fn, ">>", output_fn ]
1262 run_something "Inefective C pre-processor"
1263 ("echo '{-# LINE 1 \"" ++ input_fn ++ "\" -}' > "
1264 ++ output_fn ++ " && cat " ++ input_fn
1265 ++ " >> " ++ output_fn)
1267 -----------------------------------------------------------------------------
1270 run_phase Hsc basename input_fn output_fn
1271 = do hsc <- readIORef pgm_C
1273 -- we add the current directory (i.e. the directory in which
1274 -- the .hs files resides) to the import path, since this is
1275 -- what gcc does, and it's probably what you want.
1276 let current_dir = getdir basename
1278 paths <- readIORef include_paths
1279 writeIORef include_paths (current_dir : paths)
1281 -- build the hsc command line
1282 hsc_opts <- build_hsc_opts
1284 doing_hi <- readIORef produceHi
1285 tmp_hi_file <- if doing_hi
1286 then do fn <- newTempName "hi"
1287 add files_to_clean fn
1291 let hi_flag = if doing_hi then "-hifile=" ++ tmp_hi_file
1294 -- deal with -Rghc-timing
1295 timing <- readIORef collect_ghc_timing
1296 stat_file <- newTempName "stat"
1297 add files_to_clean stat_file
1298 let stat_opts | timing = [ "+RTS", "-S"++stat_file, "-RTS" ]
1301 -- tmp files for foreign export stub code
1302 tmp_stub_h <- newTempName "stub_h"
1303 tmp_stub_c <- newTempName "stub_c"
1304 add files_to_clean tmp_stub_h
1305 add files_to_clean tmp_stub_c
1307 -- figure out where to put the .hi file
1308 ohi <- readIORef output_hi
1309 hisuf <- readIORef hi_suf
1310 let hi_flags = case ohi of
1311 Nothing -> [ "-hidir="++current_dir, "-hisuf="++hisuf ]
1312 Just fn -> [ "-hifile="++fn ]
1314 -- run the compiler!
1315 run_something "Haskell Compiler"
1316 (unwords (hsc : input_fn : (
1320 "-ofile="++output_fn,
1327 -- Generate -Rghc-timing info
1329 run_something "Generate timing stats"
1330 (findFile "ghc-stats" cGHC_STATS ++ ' ':stat_file)
1334 let stub_h = basename ++ "_stub.h"
1335 let stub_c = basename ++ "_stub.c"
1337 -- copy .h_stub file into current dir if present
1338 b <- fileExist tmp_stub_h
1340 run_something "Copy stub .h file"
1341 ("cp " ++ tmp_stub_h ++ ' ':stub_h)
1343 -- #include <..._stub.h> in .hc file
1344 add cmdline_hc_includes tmp_stub_h -- hack
1346 -- copy the _stub.c file into the current dir
1347 run_something "Copy stub .c file"
1349 "rm -f", stub_c, "&&",
1350 "echo \'#include \""++stub_h++"\"\' >"++stub_c, " &&",
1351 "cat", tmp_stub_c, ">> ", stub_c
1354 -- compile the _stub.c file w/ gcc
1355 run_pipeline As False{-no linking-}
1356 False{-no -o option-}
1360 add ld_inputs (basename++"_stub.o")
1363 -----------------------------------------------------------------------------
1366 -- we don't support preprocessing .c files (with -E) now. Doing so introduces
1367 -- way too many hacks, and I can't say I've ever used it anyway.
1369 run_phase cc_phase basename input_fn output_fn
1370 | cc_phase == Cc || cc_phase == HCc
1371 = do cc <- readIORef pgm_c
1372 cc_opts <- getOpts opt_c
1373 cmdline_include_dirs <- readIORef include_paths
1374 -- ToDo: $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
1376 let hcc = cc_phase == HCc
1378 -- add package include paths even if we're just compiling
1379 -- .c files; this is the Value Add(TM) that using
1380 -- ghc instead of gcc gives you :)
1381 pkg_include_dirs <- getPackageIncludePath
1382 let include_paths = map (\p -> "-I"++p) (cmdline_include_dirs
1383 ++ pkg_include_dirs)
1385 c_includes <- getPackageCIncludes
1386 cmdline_includes <- readIORef cmdline_hc_includes -- -#include options
1388 let cc_injects | hcc = unlines (map mk_include
1389 (c_includes ++ reverse cmdline_includes))
1393 '"':_{-"-} -> "#include "++h_file
1394 '<':_ -> "#include "++h_file
1395 _ -> "#include \""++h_file++"\""
1397 cc_help <- newTempName "c"
1398 add files_to_clean cc_help
1399 h <- openFile cc_help WriteMode
1400 hPutStr h cc_injects
1401 hPutStrLn h ("#include \"" ++ input_fn ++ "\"\n")
1404 ccout <- newTempName "ccout"
1405 add files_to_clean ccout
1407 mangle <- readIORef do_asm_mangling
1408 (md_c_flags, md_regd_c_flags) <- machdepCCOpts
1412 o2 <- readIORef opt_minus_o2_for_C
1413 let opt_flag | o2 = "-O2"
1416 pkg_extra_cc_opts <- getPackageExtraCcOpts
1418 run_something "C Compiler"
1419 (unwords ([ cc, "-x", "c", cc_help, "-o", output_fn ]
1421 ++ (if cc_phase == HCc && mangle
1422 then md_regd_c_flags
1424 ++ [ verb, "-S", "-Wimplicit", opt_flag ]
1425 ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
1428 ++ pkg_extra_cc_opts
1432 -- ToDo: postprocess the output from gcc
1434 -----------------------------------------------------------------------------
1437 run_phase Mangle basename input_fn output_fn
1438 = do mangler <- readIORef pgm_m
1439 mangler_opts <- getOpts opt_m
1441 if (prefixMatch "i386" cTARGETPLATFORM)
1442 then do n_regs <- readIORef stolen_x86_regs
1443 return [ show n_regs ]
1445 run_something "Assembly Mangler"
1448 ++ [ input_fn, output_fn ]
1452 -----------------------------------------------------------------------------
1455 run_phase SplitMangle basename input_fn outputfn
1456 = do splitter <- readIORef pgm_s
1458 -- this is the prefix used for the split .s files
1459 tmp_pfx <- readIORef tmp_prefix
1461 let split_s_prefix = tmp_pfx ++ "/ghc" ++ show x
1462 writeIORef split_prefix split_s_prefix
1463 add files_to_clean (split_s_prefix ++ "__*") -- d:-)
1465 -- allocate a tmp file to put the no. of split .s files in (sigh)
1466 n_files <- newTempName "n_files"
1467 add files_to_clean n_files
1469 run_something "Split Assembly File"
1476 -- save the number of split files for future references
1477 s <- readFile n_files
1478 let n = read s :: Int
1479 writeIORef n_split_files n
1481 -----------------------------------------------------------------------------
1484 run_phase As basename input_fn output_fn
1485 = do as <- readIORef pgm_a
1486 as_opts <- getOpts opt_a
1488 cmdline_include_paths <- readIORef include_paths
1489 let cmdline_include_flags = map (\p -> "-I"++p) cmdline_include_paths
1490 run_something "Assembler"
1491 (unwords (as : as_opts
1492 ++ cmdline_include_flags
1493 ++ [ "-c", input_fn, "-o", output_fn ]
1496 run_phase SplitAs basename input_fn output_fn
1497 = do as <- readIORef pgm_a
1498 as_opts <- getOpts opt_a
1500 odir_opt <- readIORef output_dir
1501 let odir | Just s <- odir_opt = s
1502 | otherwise = basename
1504 split_s_prefix <- readIORef split_prefix
1505 n <- readIORef n_split_files
1507 odir <- readIORef output_dir
1508 let real_odir = case odir of
1512 let assemble_file n = do
1513 let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
1514 let output_o = newdir real_odir
1515 (basename ++ "__" ++ show n ++ ".o")
1516 real_o <- osuf_ify output_o
1517 run_something "Assembler"
1518 (unwords (as : as_opts
1519 ++ [ "-c", "-o", real_o, input_s ]
1522 mapM_ assemble_file [1..n]
1524 -----------------------------------------------------------------------------
1527 do_link :: [String] -> [String] -> IO ()
1528 do_link o_files unknown_srcs = do
1529 ln <- readIORef pgm_l
1531 o_file <- readIORef output_file
1532 let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
1534 pkg_lib_paths <- getPackageLibraryPath
1535 let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
1537 lib_paths <- readIORef library_paths
1538 let lib_path_opts = map ("-L"++) lib_paths
1540 pkg_libs <- getPackageLibraries
1541 let pkg_lib_opts = map ("-l"++) pkg_libs
1543 libs <- readIORef cmdline_libraries
1544 let lib_opts = map ("-l"++) (reverse libs)
1545 -- reverse because they're added in reverse order from the cmd line
1547 pkg_extra_ld_opts <- getPackageExtraLdOpts
1549 -- probably _stub.o files
1550 extra_ld_inputs <- readIORef ld_inputs
1552 -- opts from -optl-<blah>
1553 extra_ld_opts <- getOpts opt_l
1555 run_something "Linker"
1557 ([ ln, verb, "-o", output_fn ]
1563 ++ pkg_lib_path_opts
1565 ++ pkg_extra_ld_opts
1570 -----------------------------------------------------------------------------
1571 -- Running an external program
1573 run_something phase_name cmd
1575 verb <- readIORef verbose
1584 n <- readIORef dry_run
1585 if n then return () else do
1588 exit_code <- system cmd `catchAllIO`
1589 (\e -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
1591 if exit_code /= ExitSuccess
1592 then throwDyn (PhaseFailed phase_name exit_code)
1593 else do on verb (putStr "\n")
1596 -----------------------------------------------------------------------------
1600 = NoArg (IO ()) -- flag with no argument
1601 | HasArg (String -> IO ()) -- flag has an argument (maybe prefix)
1602 | SepArg (String -> IO ()) -- flag has a separate argument
1603 | Prefix (String -> IO ()) -- flag is a prefix only
1604 | OptPrefix (String -> IO ()) -- flag may be a prefix
1605 | AnySuffix (String -> IO ()) -- flag is a prefix, pass whole arg to fn
1606 | PassFlag (String -> IO ()) -- flag with no arg, pass flag to fn
1608 -- note that ordering is important in the following list: any flag which
1609 -- is a prefix flag (i.e. HasArg, Prefix, OptPrefix, AnySuffix) will override
1610 -- flags further down the list with the same prefix.
1613 [ ------- help -------------------------------------------------------
1614 ( "?" , NoArg long_usage)
1615 , ( "-help" , NoArg long_usage)
1618 ------- version ----------------------------------------------------
1619 , ( "-version" , NoArg (do hPutStrLn stderr (cProjectName
1620 ++ ", version " ++ version_str)
1621 exitWith ExitSuccess))
1622 , ( "-numeric-version", NoArg (do hPutStrLn stderr version_str
1623 exitWith ExitSuccess))
1625 ------- verbosity ----------------------------------------------------
1626 , ( "v" , NoArg (writeIORef verbose True) )
1627 , ( "n" , NoArg (writeIORef dry_run True) )
1629 ------- recompilation checker --------------------------------------
1630 , ( "recomp" , NoArg (writeIORef recomp True) )
1631 , ( "no-recomp" , NoArg (writeIORef recomp False) )
1633 ------- ways --------------------------------------------------------
1634 , ( "prof" , NoArg (addNoDups ways WayProf) )
1635 , ( "unreg" , NoArg (addNoDups ways WayUnreg) )
1636 , ( "ticky" , NoArg (addNoDups ways WayTicky) )
1637 , ( "parallel" , NoArg (addNoDups ways WayPar) )
1638 , ( "gransim" , NoArg (addNoDups ways WayGran) )
1639 , ( "smp" , NoArg (addNoDups ways WaySMP) )
1640 , ( "debug" , NoArg (addNoDups ways WayDebug) )
1643 ------- Interface files ---------------------------------------------
1644 , ( "hi" , NoArg (writeIORef produceHi True) )
1645 , ( "nohi" , NoArg (writeIORef produceHi False) )
1646 , ( "hi-diffs" , NoArg (writeIORef hi_diffs NormalHiDiffs) )
1647 , ( "no-hi-diffs" , NoArg (writeIORef hi_diffs NoHiDiffs) )
1648 , ( "hi-diffs-with-usages" , NoArg (writeIORef hi_diffs UsageHiDiffs) )
1649 , ( "keep-hi-diffs" , NoArg (writeIORef keep_hi_diffs True) )
1650 --"hi-with-*" -> hiw <- readIORef hi_with (ToDo)
1652 --------- Profiling --------------------------------------------------
1653 , ( "auto-dicts" , NoArg (add opt_C "-fauto-sccs-on-dicts") )
1654 , ( "auto-all" , NoArg (add opt_C "-fauto-sccs-on-all-toplevs") )
1655 , ( "auto" , NoArg (add opt_C "-fauto-sccs-on-exported-toplevs") )
1656 , ( "caf-all" , NoArg (add opt_C "-fauto-sccs-on-individual-cafs") )
1657 -- "ignore-sccs" doesn't work (ToDo)
1659 ------- Miscellaneous -----------------------------------------------
1660 , ( "cpp" , NoArg (writeIORef cpp_flag True) )
1661 , ( "#include" , HasArg (add cmdline_hc_includes) )
1662 , ( "no-link-chk" , NoArg (return ()) ) -- ignored for backwards compat
1664 ------- Output Redirection ------------------------------------------
1665 , ( "odir" , HasArg (writeIORef output_dir . Just) )
1666 , ( "o" , SepArg (writeIORef output_file . Just) )
1667 , ( "osuf" , HasArg (writeIORef output_suf . Just) )
1668 , ( "hisuf" , HasArg (writeIORef hi_suf) )
1669 , ( "tmpdir" , HasArg (writeIORef tmp_prefix . (++ "/")) )
1670 , ( "ohi" , HasArg (\s -> case s of
1671 "-" -> writeIORef hi_on_stdout True
1672 _ -> writeIORef output_hi (Just s)) )
1675 , ( "keep-hc-file" , AnySuffix (\_ -> writeIORef keep_hc_files True) )
1676 , ( "keep-s-file" , AnySuffix (\_ -> writeIORef keep_s_files True) )
1677 , ( "keep-raw-s-file", AnySuffix (\_ -> writeIORef keep_raw_s_files True) )
1679 , ( "split-objs" , NoArg (if can_split
1680 then do writeIORef split_object_files True
1681 writeIORef hsc_lang HscC
1682 add opt_C "-fglobalise-toplev-names"
1683 add opt_c "-DUSE_SPLIT_MARKERS"
1684 else hPutStrLn stderr
1685 "warning: don't know how to split \
1686 \object files on this architecture"
1689 ------- Include/Import Paths ----------------------------------------
1690 , ( "i" , OptPrefix augment_import_paths )
1691 , ( "I" , Prefix augment_include_paths )
1693 ------- Libraries ---------------------------------------------------
1694 , ( "L" , Prefix augment_library_paths )
1695 , ( "l" , Prefix (add cmdline_libraries) )
1697 ------- Packages ----------------------------------------------------
1698 , ( "package-name" , HasArg (\s -> add opt_C ("-inpackage="++s)) )
1700 , ( "package" , HasArg (addPackage) )
1701 , ( "syslib" , HasArg (addPackage) ) -- for compatibility w/ old vsns
1703 ------- Specific phases --------------------------------------------
1704 , ( "pgmdep" , HasArg (writeIORef pgm_dep) )
1705 , ( "pgmL" , HasArg (writeIORef pgm_L) )
1706 , ( "pgmP" , HasArg (writeIORef pgm_P) )
1707 , ( "pgmC" , HasArg (writeIORef pgm_C) )
1708 , ( "pgmc" , HasArg (writeIORef pgm_c) )
1709 , ( "pgmm" , HasArg (writeIORef pgm_m) )
1710 , ( "pgms" , HasArg (writeIORef pgm_s) )
1711 , ( "pgma" , HasArg (writeIORef pgm_a) )
1712 , ( "pgml" , HasArg (writeIORef pgm_l) )
1714 , ( "optdep" , HasArg (add opt_dep) )
1715 , ( "optL" , HasArg (add opt_L) )
1716 , ( "optP" , HasArg (add opt_P) )
1717 , ( "optCrts" , HasArg (add opt_Crts) )
1718 , ( "optC" , HasArg (add opt_C) )
1719 , ( "optc" , HasArg (add opt_c) )
1720 , ( "optm" , HasArg (add opt_m) )
1721 , ( "opta" , HasArg (add opt_a) )
1722 , ( "optl" , HasArg (add opt_l) )
1723 , ( "optdll" , HasArg (add opt_dll) )
1725 ------ HsCpp opts ---------------------------------------------------
1726 , ( "D" , Prefix (\s -> add opt_P ("-D'"++s++"'") ) )
1727 , ( "U" , Prefix (\s -> add opt_P ("-U'"++s++"'") ) )
1729 ------ Warning opts -------------------------------------------------
1730 , ( "W" , NoArg (writeIORef warning_opt W_))
1731 , ( "Wall" , NoArg (writeIORef warning_opt W_all))
1732 , ( "Wnot" , NoArg (writeIORef warning_opt W_not))
1733 , ( "w" , NoArg (writeIORef warning_opt W_not))
1735 ----- Linker --------------------------------------------------------
1736 , ( "static" , NoArg (writeIORef static True) )
1738 ------ Compiler RTS options -----------------------------------------
1739 , ( "H" , HasArg (sizeOpt specific_heap_size) )
1740 , ( "K" , HasArg (sizeOpt specific_stack_size) )
1741 , ( "Rscale-sizes" , HasArg (floatOpt scale_sizes_by) )
1742 , ( "Rghc-timing" , NoArg (writeIORef collect_ghc_timing True) )
1744 ------ Debugging ----------------------------------------------------
1745 , ( "dstg-stats" , NoArg (writeIORef opt_StgStats True) )
1747 , ( "dno-" , Prefix (\s -> add anti_opt_C ("-d"++s)) )
1748 , ( "d" , AnySuffix (add opt_C) )
1750 ------ Machine dependant (-m<blah>) stuff ---------------------------
1752 , ( "monly-2-regs", NoArg (writeIORef stolen_x86_regs 2) )
1753 , ( "monly-3-regs", NoArg (writeIORef stolen_x86_regs 3) )
1754 , ( "monly-4-regs", NoArg (writeIORef stolen_x86_regs 4) )
1756 ------ Compiler flags -----------------------------------------------
1757 , ( "O2-for-C" , NoArg (writeIORef opt_minus_o2_for_C True) )
1758 , ( "O" , OptPrefix (setOptLevel) )
1760 , ( "fglasgow-exts-no-lang", NoArg ( do add opt_C "-fglasgow-exts") )
1762 , ( "fglasgow-exts" , NoArg (do add opt_C "-fglasgow-exts"
1765 , ( "fasm" , OptPrefix (\_ -> writeIORef hsc_lang HscAsm) )
1767 , ( "fvia-C" , NoArg (writeIORef hsc_lang HscC) )
1769 , ( "fno-asm-mangling" , NoArg (writeIORef do_asm_mangling False) )
1771 , ( "fmax-simplifier-iterations",
1772 Prefix (writeIORef opt_MaxSimplifierIterations . read) )
1774 , ( "fusagesp", NoArg (do writeIORef opt_UsageSPInf True
1775 add opt_C "-fusagesp-on") )
1777 -- flags that are "active negatives"
1778 , ( "fno-implicit-prelude" , PassFlag (add opt_C) )
1779 , ( "fno-prune-tydecls" , PassFlag (add opt_C) )
1780 , ( "fno-prune-instdecls" , PassFlag (add opt_C) )
1781 , ( "fno-pre-inlining" , PassFlag (add opt_C) )
1783 -- All other "-fno-<blah>" options cancel out "-f<blah>" on the hsc cmdline
1784 , ( "fno-", Prefix (\s -> add anti_opt_C ("-f"++s)) )
1786 -- Pass all remaining "-f<blah>" options to hsc
1787 , ( "f", AnySuffix (add opt_C) )
1790 -----------------------------------------------------------------------------
1791 -- Process command-line
1793 processArgs :: [String] -> [String] -> IO [String] -- returns spare args
1794 processArgs [] spare = return (reverse spare)
1795 processArgs args@(('-':_):_) spare = do
1796 args' <- processOneArg args
1797 processArgs args' spare
1798 processArgs (arg:args) spare =
1799 processArgs args (arg:spare)
1801 processOneArg :: [String] -> IO [String]
1802 processOneArg (('-':arg):args) = do
1803 let (rest,action) = findArg arg
1809 then io >> return args
1810 else throwDyn (UnknownFlag dash_arg)
1814 then fio rest >> return args
1816 [] -> throwDyn (UnknownFlag dash_arg)
1817 (arg1:args1) -> fio arg1 >> return args1
1821 [] -> throwDyn (UnknownFlag dash_arg)
1822 (arg1:args1) -> fio arg1 >> return args1
1826 then fio rest >> return args
1827 else throwDyn (UnknownFlag dash_arg)
1829 OptPrefix fio -> fio rest >> return args
1831 AnySuffix fio -> fio ('-':arg) >> return args
1835 then throwDyn (UnknownFlag dash_arg)
1836 else fio ('-':arg) >> return args
1838 findArg :: String -> (String,OptKind)
1840 = case [ (remove_spaces rest, k) | (pat,k) <- opts,
1841 Just rest <- [my_prefix_match pat arg],
1842 is_prefix k || null rest ] of
1843 [] -> throwDyn (UnknownFlag ('-':arg))
1846 is_prefix (NoArg _) = False
1847 is_prefix (SepArg _) = False
1848 is_prefix (PassFlag _) = False
1851 -----------------------------------------------------------------------------
1852 -- convert sizes like "3.5M" into integers
1854 sizeOpt :: IORef Integer -> String -> IO ()
1856 | c == "" = writeSizeOpt ref (truncate n)
1857 | c == "K" || c == "k" = writeSizeOpt ref (truncate (n * 1000))
1858 | c == "M" || c == "m" = writeSizeOpt ref (truncate (n * 1000 * 1000))
1859 | c == "G" || c == "g" = writeSizeOpt ref (truncate (n * 1000 * 1000 * 1000))
1860 | otherwise = throwDyn (UnknownFlag str)
1861 where (m, c) = span pred str
1862 n = read m :: Double
1863 pred c = isDigit c || c == '.'
1865 writeSizeOpt :: IORef Integer -> Integer -> IO ()
1866 writeSizeOpt ref new = do
1867 current <- readIORef ref
1869 then writeIORef ref new
1872 floatOpt :: IORef Double -> String -> IO ()
1874 = writeIORef ref (read str :: Double)
1876 -----------------------------------------------------------------------------
1877 -- Finding files in the installation
1879 GLOBAL_VAR(topDir, clibdir, String)
1881 -- grab the last -B option on the command line, and
1882 -- set topDir to its value.
1883 setTopDir :: [String] -> IO [String]
1885 let (minusbs, others) = partition (prefixMatch "-B") args
1887 [] -> writeIORef topDir clibdir
1888 some -> writeIORef topDir (drop 2 (last some)))
1891 findFile name alt_path = unsafePerformIO (do
1892 top_dir <- readIORef topDir
1893 let installed_file = top_dir ++ '/':name
1894 let inplace_file = top_dir ++ '/':cCURRENT_DIR ++ '/':alt_path
1895 b <- fileExist inplace_file
1896 if b then return inplace_file
1897 else return installed_file
1900 -----------------------------------------------------------------------------
1903 my_partition :: (a -> Maybe b) -> [a] -> ([b],[a])
1904 my_partition p [] = ([],[])
1905 my_partition p (a:as)
1906 = let (bs,cs) = my_partition p as in
1908 Nothing -> (bs,a:cs)
1911 my_prefix_match :: String -> String -> Maybe String
1912 my_prefix_match [] rest = Just rest
1913 my_prefix_match (p:pat) [] = Nothing
1914 my_prefix_match (p:pat) (r:rest)
1915 | p == r = my_prefix_match pat rest
1916 | otherwise = Nothing
1918 prefixMatch :: Eq a => [a] -> [a] -> Bool
1919 prefixMatch [] str = True
1920 prefixMatch pat [] = False
1921 prefixMatch (p:ps) (s:ss) | p == s = prefixMatch ps ss
1924 postfixMatch :: String -> String -> Bool
1925 postfixMatch pat str = prefixMatch (reverse pat) (reverse str)
1927 later = flip finally
1929 on b io = if b then io >> return (error "on") else return (error "on")
1931 my_catch = flip catchAllIO
1932 my_catchDyn = flip catchDyn
1934 global :: a -> IORef a
1935 global a = unsafePerformIO (newIORef a)
1937 split_filename :: String -> (String,String)
1938 split_filename f = (reverse rev_basename, reverse rev_ext)
1939 where (rev_ext, '.':rev_basename) = span ('.' /=) (reverse f)
1941 split :: Char -> String -> [String]
1942 split c s = case rest of
1944 _:rest -> chunk : split c rest
1945 where (chunk, rest) = break (==c) s
1947 add :: IORef [a] -> a -> IO ()
1950 writeIORef var (x:xs)
1952 addNoDups :: Eq a => IORef [a] -> a -> IO ()
1953 addNoDups var x = do
1955 if x `elem` xs then return () else writeIORef var (x:xs)
1957 remove_suffix :: String -> Char -> String
1959 | null pre = reverse suf
1960 | otherwise = reverse pre
1961 where (suf,pre) = break (==c) (reverse s)
1963 drop_longest_prefix :: String -> Char -> String
1964 drop_longest_prefix s c = reverse suf
1965 where (suf,pre) = break (==c) (reverse s)
1967 take_longest_prefix :: String -> Char -> String
1968 take_longest_prefix s c = reverse pre
1969 where (suf,pre) = break (==c) (reverse s)
1971 newsuf :: String -> String -> String
1972 newsuf suf s = remove_suffix s '.' ++ suf
1974 -- getdir strips the filename off the input string, returning the directory.
1975 getdir :: String -> String
1976 getdir s = if null dir then "." else init dir
1977 where dir = take_longest_prefix s '/'
1979 newdir :: String -> String -> String
1980 newdir dir s = dir ++ '/':drop_longest_prefix s '/'
1982 remove_spaces :: String -> String
1983 remove_spaces = reverse . dropWhile isSpace . reverse . dropWhile isSpace