1 -----------------------------------------------------------------------------
2 -- $Id: DriverState.hs,v 1.6 2000/10/24 16:08:16 simonmar Exp $
4 -- Settings for the driver
6 -- (c) The University of Glasgow 2000
8 -----------------------------------------------------------------------------
10 module DriverState where
12 #include "HsVersions.h"
29 -----------------------------------------------------------------------------
32 -- certain flags can be specified on a per-file basis, in an OPTIONS
33 -- pragma at the beginning of the source file. This means that when
34 -- compiling mulitple files, we have to restore the global option
35 -- settings before compiling a new file.
37 -- The DriverState record contains the per-file-mutable state.
39 data DriverState = DriverState {
41 -- are we runing cpp on this file?
45 stolen_x86_regs :: Int,
46 cmdline_hc_includes :: [String],
48 -- options for a particular phase
56 initDriverState = DriverState {
59 cmdline_hc_includes = [],
67 GLOBAL_VAR(driver_state, initDriverState, DriverState)
69 readState :: (DriverState -> a) -> IO a
70 readState f = readIORef driver_state >>= return . f
72 updateState :: (DriverState -> DriverState) -> IO ()
73 updateState f = readIORef driver_state >>= writeIORef driver_state . f
75 addOpt_L a = updateState (\s -> s{opt_L = a : opt_L s})
76 addOpt_P a = updateState (\s -> s{opt_P = a : opt_P s})
77 addOpt_c a = updateState (\s -> s{opt_c = a : opt_c s})
78 addOpt_a a = updateState (\s -> s{opt_a = a : opt_a s})
79 addOpt_m a = updateState (\s -> s{opt_m = a : opt_m s})
81 addCmdlineHCInclude a =
82 updateState (\s -> s{cmdline_hc_includes = a : cmdline_hc_includes s})
84 -- we add to the options from the front, so we need to reverse the list
85 getOpts :: (DriverState -> [a]) -> IO [a]
86 getOpts opts = readState opts >>= return . reverse
88 -----------------------------------------------------------------------------
89 -- non-configured things
91 cHaskell1Version = "5" -- i.e., Haskell 98
93 -----------------------------------------------------------------------------
94 -- Global compilation flags
96 -- location of compiler-related files
97 GLOBAL_VAR(topDir, clibdir, String)
98 GLOBAL_VAR(inplace, False, Bool)
101 hs_source_cpp_opts = global
102 [ "-D__HASKELL1__="++cHaskell1Version
103 , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
105 , "-D__CONCURRENT_HASKELL__"
109 GLOBAL_VAR(verbose, False, Bool)
110 is_verbose = do v <- readIORef verbose; if v then return "-v" else return ""
112 -- where to keep temporary files
113 GLOBAL_VAR(v_TmpDir, cDEFAULT_TMPDIR, String )
115 -- Keep output from intermediate phases
116 GLOBAL_VAR(keep_hi_diffs, False, Bool)
117 GLOBAL_VAR(keep_hc_files, False, Bool)
118 GLOBAL_VAR(keep_s_files, False, Bool)
119 GLOBAL_VAR(keep_raw_s_files, False, Bool)
120 GLOBAL_VAR(keep_tmp_files, False, Bool)
123 GLOBAL_VAR(scale_sizes_by, 1.0, Double)
124 GLOBAL_VAR(dry_run, False, Bool)
125 #if !defined(HAVE_WIN32_DLL_SUPPORT) || defined(DONT_WANT_WIN32_DLL_SUPPORT)
126 GLOBAL_VAR(static, True, Bool)
128 GLOBAL_VAR(static, False, Bool)
130 GLOBAL_VAR(recomp, True, Bool)
131 GLOBAL_VAR(collect_ghc_timing, False, Bool)
132 GLOBAL_VAR(do_asm_mangling, True, Bool)
133 GLOBAL_VAR(excess_precision, False, Bool)
135 -----------------------------------------------------------------------------
136 -- Splitting object files (for libraries)
138 GLOBAL_VAR(split_object_files, False, Bool)
139 GLOBAL_VAR(split_prefix, "", String)
140 GLOBAL_VAR(n_split_files, 0, Int)
143 can_split = prefixMatch "i386" cTARGETPLATFORM
144 || prefixMatch "alpha" cTARGETPLATFORM
145 || prefixMatch "hppa" cTARGETPLATFORM
146 || prefixMatch "m68k" cTARGETPLATFORM
147 || prefixMatch "mips" cTARGETPLATFORM
148 || prefixMatch "powerpc" cTARGETPLATFORM
149 || prefixMatch "rs6000" cTARGETPLATFORM
150 || prefixMatch "sparc" cTARGETPLATFORM
152 -----------------------------------------------------------------------------
153 -- Compiler output options
155 GLOBAL_VAR(hsc_lang, if cGhcWithNativeCodeGen == "YES" &&
156 (prefixMatch "i386" cTARGETPLATFORM ||
157 prefixMatch "sparc" cTARGETPLATFORM)
162 GLOBAL_VAR(output_dir, Nothing, Maybe String)
163 GLOBAL_VAR(output_suf, Nothing, Maybe String)
164 GLOBAL_VAR(output_file, Nothing, Maybe String)
165 GLOBAL_VAR(output_hi, Nothing, Maybe String)
167 GLOBAL_VAR(ld_inputs, [], [String])
169 odir_ify :: String -> IO String
171 odir_opt <- readIORef output_dir
174 Just d -> return (newdir d f)
176 osuf_ify :: String -> IO String
178 osuf_opt <- readIORef output_suf
181 Just s -> return (newsuf s f)
183 -----------------------------------------------------------------------------
186 GLOBAL_VAR(produceHi, True, Bool)
187 GLOBAL_VAR(hi_on_stdout, False, Bool)
188 GLOBAL_VAR(hi_suf, "hi", String)
190 -----------------------------------------------------------------------------
191 -- Warnings & sanity checking
193 -- Warning packages that are controlled by -W and -Wall. The 'standard'
194 -- warnings that you get all the time are
196 -- -fwarn-overlapping-patterns
197 -- -fwarn-missing-methods
198 -- -fwarn-missing-fields
199 -- -fwarn-deprecations
200 -- -fwarn-duplicate-exports
202 -- these are turned off by -Wnot.
205 standardWarnings = [ "-fwarn-overlapping-patterns"
206 , "-fwarn-missing-methods"
207 , "-fwarn-missing-fields"
208 , "-fwarn-deprecations"
209 , "-fwarn-duplicate-exports"
211 minusWOpts = standardWarnings ++
212 [ "-fwarn-unused-binds"
213 , "-fwarn-unused-matches"
214 , "-fwarn-incomplete-patterns"
215 , "-fwarn-unused-imports"
217 minusWallOpts = minusWOpts ++
218 [ "-fwarn-type-defaults"
219 , "-fwarn-name-shadowing"
220 , "-fwarn-missing-signatures"
221 , "-fwarn-hi-shadowing"
224 data WarningState = W_default | W_ | W_all | W_not
225 GLOBAL_VAR(warning_opt, W_default, WarningState)
227 -----------------------------------------------------------------------------
228 -- Compiler optimisation options
230 GLOBAL_VAR(v_OptLevel, 0, Int)
232 setOptLevel :: String -> IO ()
233 setOptLevel "" = do { writeIORef v_OptLevel 1; go_via_C }
234 setOptLevel "not" = writeIORef v_OptLevel 0
235 setOptLevel [c] | isDigit c = do
236 let level = ord c - ord '0'
237 writeIORef v_OptLevel level
238 when (level >= 1) go_via_C
239 setOptLevel s = unknownFlagErr ("-O"++s)
242 l <- readIORef hsc_lang
243 case l of { HscAsm -> writeIORef hsc_lang HscC;
244 _other -> return () }
246 GLOBAL_VAR(v_minus_o2_for_C, False, Bool)
248 GLOBAL_VAR(v_MaxSimplifierIterations, 4, Int)
249 GLOBAL_VAR(v_StgStats, False, Bool)
250 GLOBAL_VAR(v_UsageSPInf, False, Bool) -- Off by default
251 GLOBAL_VAR(v_Strictness, True, Bool)
252 GLOBAL_VAR(v_CPR, True, Bool)
253 GLOBAL_VAR(v_CSE, True, Bool)
255 hsc_minusO2_flags = hsc_minusO_flags -- for now
259 "-fignore-interface-pragmas",
260 "-fomit-interface-pragmas"
266 "-fdo-eta-reduction",
267 "-fdo-lambda-eta-expansion",
273 buildCoreToDo :: IO [CoreToDo]
275 opt_level <- readIORef v_OptLevel
276 max_iter <- readIORef v_MaxSimplifierIterations
277 usageSP <- readIORef v_UsageSPInf
278 strictness <- readIORef v_Strictness
279 cpr <- readIORef v_CPR
280 cse <- readIORef v_CSE
282 if opt_level == 0 then return
284 CoreDoSimplify (isAmongSimpl [
285 MaxSimplifierIterations max_iter
289 else {- level >= 1 -} return [
291 -- initial simplify: mk specialiser happy: minimum effort please
292 CoreDoSimplify (isAmongSimpl [
294 -- Don't inline anything till full laziness has bitten
295 -- In particular, inlining wrappers inhibits floating
296 -- e.g. ...(case f x of ...)...
297 -- ==> ...(case (case x of I# x# -> fw x#) of ...)...
298 -- ==> ...(case x of I# x# -> case fw x# of ...)...
299 -- and now the redex (f x) isn't floatable any more
301 -- Similarly, don't apply any rules until after full
302 -- laziness. Notably, list fusion can prevent floating.
304 -- Don't do case-of-case transformations.
305 -- This makes full laziness work better
306 MaxSimplifierIterations max_iter
309 -- Specialisation is best done before full laziness
310 -- so that overloaded functions have all their dictionary lambdas manifest
313 CoreDoFloatOutwards False{-not full-},
316 CoreDoSimplify (isAmongSimpl [
318 -- Want to run with inline phase 1 after the specialiser to give
319 -- maximum chance for fusion to work before we inline build/augment
320 -- in phase 2. This made a difference in 'ansi' where an
321 -- overloaded function wasn't inlined till too late.
322 MaxSimplifierIterations max_iter
325 -- infer usage information here in case we need it later.
326 -- (add more of these where you need them --KSW 1999-04)
327 if usageSP then CoreDoUSPInf else CoreDoNothing,
329 CoreDoSimplify (isAmongSimpl [
330 -- Need inline-phase2 here so that build/augment get
331 -- inlined. I found that spectral/hartel/genfft lost some useful
332 -- strictness in the function sumcode' if augment is not inlined
333 -- before strictness analysis runs
335 MaxSimplifierIterations max_iter
338 CoreDoSimplify (isAmongSimpl [
339 MaxSimplifierIterations 2
340 -- No -finline-phase: allow all Ids to be inlined now
341 -- This gets foldr inlined before strictness analysis
344 if strictness then CoreDoStrictness else CoreDoNothing,
345 if cpr then CoreDoCPResult else CoreDoNothing,
349 CoreDoSimplify (isAmongSimpl [
350 MaxSimplifierIterations max_iter
351 -- No -finline-phase: allow all Ids to be inlined now
354 CoreDoFloatOutwards False{-not full-},
355 -- nofib/spectral/hartel/wang doubles in speed if you
356 -- do full laziness late in the day. It only happens
357 -- after fusion and other stuff, so the early pass doesn't
358 -- catch it. For the record, the redex is
359 -- f_el22 (f_el21 r_midblock)
361 -- Leave out lambda lifting for now
362 -- "-fsimplify", -- Tidy up results of full laziness
364 -- "-fmax-simplifier-iterations2",
366 -- "-ffloat-outwards-full",
368 -- We want CSE to follow the final full-laziness pass, because it may
369 -- succeed in commoning up things floated out by full laziness.
371 -- CSE must immediately follow a simplification pass, because it relies
372 -- on the no-shadowing invariant. See comments at the top of CSE.lhs
373 -- So it must NOT follow float-inwards, which can give rise to shadowing,
374 -- even if its input doesn't have shadows. Hence putting it between
376 if cse then CoreCSE else CoreDoNothing,
380 -- Case-liberation for -O2. This should be after
381 -- strictness analysis and the simplification which follows it.
383 -- ( ($OptLevel != 2)
385 -- : "-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 ]" ),
387 -- "-fliberate-case",
389 -- Final clean-up simplification:
390 CoreDoSimplify (isAmongSimpl [
391 MaxSimplifierIterations max_iter
392 -- No -finline-phase: allow all Ids to be inlined now
396 buildStgToDo :: IO [ StgToDo ]
398 stg_stats <- readIORef v_StgStats
399 let flags1 | stg_stats = [ D_stg_stats ]
403 ways_ <- readIORef ways
404 let flags2 | WayProf `elem` ways_ = StgDoMassageForProfiling : flags1
409 -----------------------------------------------------------------------------
412 split_marker = ':' -- not configurable (ToDo)
414 import_paths, include_paths, library_paths :: IORef [String]
415 GLOBAL_VAR(import_paths, ["."], [String])
416 GLOBAL_VAR(include_paths, ["."], [String])
417 GLOBAL_VAR(library_paths, [], [String])
419 GLOBAL_VAR(cmdline_libraries, [], [String])
421 addToDirList :: IORef [String] -> String -> IO ()
422 addToDirList ref path
423 = do paths <- readIORef ref
424 writeIORef ref (paths ++ split split_marker path)
426 -----------------------------------------------------------------------------
429 GLOBAL_VAR(path_package_config, error "path_package_config", String)
431 -- package list is maintained in dependency order
432 packages = global ["std", "rts", "gmp"] :: IORef [String]
433 -- comma in value, so can't use macro, grrr
434 {-# NOINLINE packages #-}
436 addPackage :: String -> IO ()
438 = do pkg_details <- readIORef package_details
439 case lookupPkg package pkg_details of
440 Nothing -> throwDyn (OtherError ("unknown package name: " ++ package))
442 ps <- readIORef packages
443 unless (package `elem` ps) $ do
444 mapM_ addPackage (package_deps details)
445 ps <- readIORef packages
446 writeIORef packages (package:ps)
448 getPackageImportPath :: IO [String]
449 getPackageImportPath = do
450 ps <- readIORef packages
451 ps' <- getPackageDetails ps
452 return (nub (concat (map import_dirs ps')))
454 getPackageIncludePath :: IO [String]
455 getPackageIncludePath = do
456 ps <- readIORef packages
457 ps' <- getPackageDetails ps
458 return (nub (filter (not.null) (concatMap include_dirs ps')))
460 -- includes are in reverse dependency order (i.e. rts first)
461 getPackageCIncludes :: IO [String]
462 getPackageCIncludes = do
463 ps <- readIORef packages
464 ps' <- getPackageDetails ps
465 return (reverse (nub (filter (not.null) (concatMap c_includes ps'))))
467 getPackageLibraryPath :: IO [String]
468 getPackageLibraryPath = do
469 ps <- readIORef packages
470 ps' <- getPackageDetails ps
471 return (nub (concat (map library_dirs ps')))
473 getPackageLibraries :: IO [String]
474 getPackageLibraries = do
475 ps <- readIORef packages
476 ps' <- getPackageDetails ps
477 tag <- readIORef build_tag
478 let suffix = if null tag then "" else '_':tag
480 map (\p -> map (++suffix) (hs_libraries p) ++ extra_libraries p) ps'
483 getPackageExtraGhcOpts :: IO [String]
484 getPackageExtraGhcOpts = do
485 ps <- readIORef packages
486 ps' <- getPackageDetails ps
487 return (concatMap extra_ghc_opts ps')
489 getPackageExtraCcOpts :: IO [String]
490 getPackageExtraCcOpts = do
491 ps <- readIORef packages
492 ps' <- getPackageDetails ps
493 return (concatMap extra_cc_opts ps')
495 getPackageExtraLdOpts :: IO [String]
496 getPackageExtraLdOpts = do
497 ps <- readIORef packages
498 ps' <- getPackageDetails ps
499 return (concatMap extra_ld_opts ps')
501 getPackageDetails :: [String] -> IO [Package]
502 getPackageDetails ps = do
503 pkg_details <- readIORef package_details
504 return [ pkg | p <- ps, Just pkg <- [ lookupPkg p pkg_details ] ]
506 GLOBAL_VAR(package_details, (error "package_details"), [Package])
508 lookupPkg :: String -> [Package] -> Maybe Package
510 = case [p | p <- ps, name p == nm] of
513 -----------------------------------------------------------------------------
516 -- The central concept of a "way" is that all objects in a given
517 -- program must be compiled in the same "way". Certain options change
518 -- parameters of the virtual machine, eg. profiling adds an extra word
519 -- to the object header, so profiling objects cannot be linked with
520 -- non-profiling objects.
522 -- After parsing the command-line options, we determine which "way" we
523 -- are building - this might be a combination way, eg. profiling+ticky-ticky.
525 -- We then find the "build-tag" associated with this way, and this
526 -- becomes the suffix used to find .hi files and libraries used in
529 GLOBAL_VAR(build_tag, "", String)
559 GLOBAL_VAR(ways, [] ,[WayName])
561 -- ToDo: allow WayDll with any other allowed combination
563 allowed_combinations =
564 [ [WayProf,WayUnreg],
565 [WayProf,WaySMP] -- works???
568 findBuildTag :: IO [String] -- new options
570 way_names <- readIORef ways
571 case sort way_names of
572 [] -> do writeIORef build_tag ""
575 [w] -> do let details = lkupWay w
576 writeIORef build_tag (wayTag details)
577 return (wayOpts details)
579 ws -> if ws `notElem` allowed_combinations
580 then throwDyn (OtherError $
581 "combination not supported: " ++
582 foldr1 (\a b -> a ++ '/':b)
583 (map (wayName . lkupWay) ws))
584 else let stuff = map lkupWay ws
585 tag = concat (map wayTag stuff)
586 flags = map wayOpts stuff
588 writeIORef build_tag tag
589 return (concat flags)
592 case lookup w way_details of
593 Nothing -> error "findBuildTag"
594 Just details -> details
602 way_details :: [ (WayName, Way) ]
604 [ (WayProf, Way "p" "Profiling"
610 (WayTicky, Way "t" "Ticky-ticky Profiling"
613 , "-optc-DTICKY_TICKY"
616 (WayUnreg, Way "u" "Unregisterised"
618 , "-optc-DUSE_MINIINTERPRETER"
619 , "-fno-asm-mangling"
623 (WayDll, Way "dll" "DLLized"
626 (WayPar, Way "mp" "Parallel"
628 , "-D__PARALLEL_HASKELL__"
630 , "-package concurrent"
633 (WayGran, Way "mg" "Gransim"
637 , "-package concurrent"
640 (WaySMP, Way "s" "SMP"
647 (WayUser_a, Way "a" "User way 'a'" ["$WAY_a_REAL_OPTS"]),
648 (WayUser_b, Way "b" "User way 'b'" ["$WAY_b_REAL_OPTS"]),
649 (WayUser_c, Way "c" "User way 'c'" ["$WAY_c_REAL_OPTS"]),
650 (WayUser_d, Way "d" "User way 'd'" ["$WAY_d_REAL_OPTS"]),
651 (WayUser_e, Way "e" "User way 'e'" ["$WAY_e_REAL_OPTS"]),
652 (WayUser_f, Way "f" "User way 'f'" ["$WAY_f_REAL_OPTS"]),
653 (WayUser_g, Way "g" "User way 'g'" ["$WAY_g_REAL_OPTS"]),
654 (WayUser_h, Way "h" "User way 'h'" ["$WAY_h_REAL_OPTS"]),
655 (WayUser_i, Way "i" "User way 'i'" ["$WAY_i_REAL_OPTS"]),
656 (WayUser_j, Way "j" "User way 'j'" ["$WAY_j_REAL_OPTS"]),
657 (WayUser_k, Way "k" "User way 'k'" ["$WAY_k_REAL_OPTS"]),
658 (WayUser_l, Way "l" "User way 'l'" ["$WAY_l_REAL_OPTS"]),
659 (WayUser_m, Way "m" "User way 'm'" ["$WAY_m_REAL_OPTS"]),
660 (WayUser_n, Way "n" "User way 'n'" ["$WAY_n_REAL_OPTS"]),
661 (WayUser_o, Way "o" "User way 'o'" ["$WAY_o_REAL_OPTS"]),
662 (WayUser_A, Way "A" "User way 'A'" ["$WAY_A_REAL_OPTS"]),
663 (WayUser_B, Way "B" "User way 'B'" ["$WAY_B_REAL_OPTS"])
666 -----------------------------------------------------------------------------
667 -- Programs for particular phases
669 GLOBAL_VAR(pgm_L, error "pgm_L", String)
670 GLOBAL_VAR(pgm_P, cRAWCPP, String)
671 GLOBAL_VAR(pgm_c, cGCC, String)
672 GLOBAL_VAR(pgm_m, error "pgm_m", String)
673 GLOBAL_VAR(pgm_s, error "pgm_s", String)
674 GLOBAL_VAR(pgm_a, cGCC, String)
675 GLOBAL_VAR(pgm_l, cGCC, String)
677 GLOBAL_VAR(opt_dep, [], [String])
678 GLOBAL_VAR(anti_opt_C, [], [String])
679 GLOBAL_VAR(opt_C, [], [String])
680 GLOBAL_VAR(opt_l, [], [String])
681 GLOBAL_VAR(opt_dll, [], [String])
683 getStaticOpts :: IORef [String] -> IO [String]
684 getStaticOpts ref = readIORef ref >>= return . reverse
686 -----------------------------------------------------------------------------
687 -- Via-C compilation stuff
689 -- flags returned are: ( all C compilations
690 -- , registerised HC compilations
694 | prefixMatch "alpha" cTARGETPLATFORM
695 = return ( ["-static"], [] )
697 | prefixMatch "hppa" cTARGETPLATFORM
698 -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
699 -- (very nice, but too bad the HP /usr/include files don't agree.)
700 = return ( ["-static", "-D_HPUX_SOURCE"], [] )
702 | prefixMatch "m68k" cTARGETPLATFORM
703 -- -fno-defer-pop : for the .hc files, we want all the pushing/
704 -- popping of args to routines to be explicit; if we let things
705 -- be deferred 'til after an STGJUMP, imminent death is certain!
707 -- -fomit-frame-pointer : *don't*
708 -- It's better to have a6 completely tied up being a frame pointer
709 -- rather than let GCC pick random things to do with it.
710 -- (If we want to steal a6, then we would try to do things
711 -- as on iX86, where we *do* steal the frame pointer [%ebp].)
712 = return ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] )
714 | prefixMatch "i386" cTARGETPLATFORM
715 -- -fno-defer-pop : basically the same game as for m68k
717 -- -fomit-frame-pointer : *must* in .hc files; because we're stealing
718 -- the fp (%ebp) for our register maps.
719 = do n_regs <- readState stolen_x86_regs
720 sta <- readIORef static
721 return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else "" ],
722 [ "-fno-defer-pop", "-fomit-frame-pointer",
723 "-DSTOLEN_X86_REGS="++show n_regs ]
726 | prefixMatch "mips" cTARGETPLATFORM
727 = return ( ["static"], [] )
729 | prefixMatch "powerpc" cTARGETPLATFORM || prefixMatch "rs6000" cTARGETPLATFORM
730 = return ( ["static"], ["-finhibit-size-directive"] )
736 -----------------------------------------------------------------------------
737 -- Running an external program
739 run_something phase_name cmd
741 verb <- readIORef verbose
749 n <- readIORef dry_run
753 #ifndef mingw32_TARGET_OS
754 exit_code <- system cmd `catchAllIO`
755 (\_ -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
757 tmp <- newTempName "sh"
758 h <- openFile tmp WriteMode
761 exit_code <- system ("sh - " ++ tmp) `catchAllIO`
762 (\e -> throwDyn (PhaseFailed phase_name (ExitFailure 1)))
766 if exit_code /= ExitSuccess
767 then throwDyn (PhaseFailed phase_name exit_code)
768 else do when verb (putStr "\n")