X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fmain%2FDynFlags.hs;h=4c52d2a9e8ccb6f9d21b68ebfb153a883d2b3a67;hp=031fa07d26a7be899d129062da59703d997e3cc1;hb=5fa086c51816f09d03fb1a089dde64df6bd2d8a3;hpb=2cf29639c5e6f120e50d9806110bb9077c8451b6 diff --git a/compiler/main/DynFlags.hs b/compiler/main/DynFlags.hs index 031fa07..4c52d2a 100644 --- a/compiler/main/DynFlags.hs +++ b/compiler/main/DynFlags.hs @@ -1,3 +1,6 @@ +{-# OPTIONS_GHC -w #-} +-- Temporary, until rtsIsProfiled is fixed + -- | -- Dynamic flags -- @@ -12,14 +15,23 @@ module DynFlags ( -- * Dynamic flags and associated configuration types DynFlag(..), + ExtensionFlag(..), + glasgowExtsFlags, + dopt, + dopt_set, + dopt_unset, + xopt, + xopt_set, + xopt_unset, DynFlags(..), + RtsOptsEnabled(..), HscTarget(..), isObjectTarget, defaultObjectTarget, GhcMode(..), isOneShot, GhcLink(..), isNoLink, PackageFlag(..), Option(..), showOpt, DynLibLoader(..), - fFlags, xFlags, + fFlags, fLangFlags, xFlags, dphPackage, wayNames, @@ -27,8 +39,6 @@ module DynFlags ( defaultDynFlags, -- DynFlags initDynFlags, -- DynFlags -> IO DynFlags - dopt, -- DynFlag -> DynFlags -> Bool - dopt_set, dopt_unset, -- DynFlags -> DynFlag -> DynFlags getOpts, -- DynFlags -> (DynFlags -> [a]) -> [a] getVerbFlag, updOptLevel, @@ -41,7 +51,7 @@ module DynFlags ( parseDynamicNoPackageFlags, allFlags, - supportedLanguages, languageOptions, + supportedLanguagesAndExtensions, -- ** DynFlag C compiler options machdepCCOpts, picCCOpts, @@ -53,6 +63,11 @@ module DynFlags ( -- * Compiler configuration suitable for display to the user Printable(..), compilerInfo +#ifdef GHCI +-- Only in stage 2 can we be sure that the RTS +-- exposes the appropriate runtime boolean + , rtsIsProfiled +#endif ) where #include "HsVersions.h" @@ -74,15 +89,18 @@ import Util import Maybes ( orElse ) import SrcLoc import FastString -import FiniteMap import Outputable +import Foreign.C ( CInt ) import {-# SOURCE #-} ErrUtils ( Severity(..), Message, mkLocMessage ) +import System.IO.Unsafe ( unsafePerformIO ) import Data.IORef import Control.Monad ( when ) import Data.Char import Data.List +import Data.Map (Map) +import qualified Data.Map as Map import System.FilePath import System.IO ( stderr, hPutChar ) @@ -108,7 +126,6 @@ data DynFlag | Opt_D_dump_asm_stats | Opt_D_dump_asm_expanded | Opt_D_dump_llvm - | Opt_D_dump_llvm_opt | Opt_D_dump_cpranal | Opt_D_dump_deriv | Opt_D_dump_ds @@ -165,11 +182,12 @@ data DynFlag | Opt_WarnIncompletePatterns | Opt_WarnIncompletePatternsRecUpd | Opt_WarnMissingFields + | Opt_WarnMissingImportList | Opt_WarnMissingMethods | Opt_WarnMissingSigs + | Opt_WarnMissingLocalSigs | Opt_WarnNameShadowing | Opt_WarnOverlappingPatterns - | Opt_WarnSimplePatterns | Opt_WarnTypeDefaults | Opt_WarnMonomorphism | Opt_WarnUnusedBinds @@ -180,6 +198,8 @@ data DynFlag | Opt_WarnDodgyExports | Opt_WarnDodgyImports | Opt_WarnOrphans + | Opt_WarnAutoOrphans + | Opt_WarnIdentities | Opt_WarnTabs | Opt_WarnUnrecognisedPragmas | Opt_WarnDodgyForeignImports @@ -188,75 +208,6 @@ data DynFlag | Opt_WarnWrongDoBind | Opt_WarnAlternativeLayoutRuleTransitional - - -- language opts - | Opt_OverlappingInstances - | Opt_UndecidableInstances - | Opt_IncoherentInstances - | Opt_MonomorphismRestriction - | Opt_MonoPatBinds - | Opt_MonoLocalBinds - | Opt_ExtendedDefaultRules -- Use GHC's extended rules for defaulting - | Opt_ForeignFunctionInterface - | Opt_UnliftedFFITypes - | Opt_GHCForeignImportPrim - | Opt_PArr -- Syntactic support for parallel arrays - | Opt_Arrows -- Arrow-notation syntax - | Opt_TemplateHaskell - | Opt_QuasiQuotes - | Opt_ImplicitParams - | Opt_Generics -- "Derivable type classes" - | Opt_ImplicitPrelude - | Opt_ScopedTypeVariables - | Opt_UnboxedTuples - | Opt_BangPatterns - | Opt_TypeFamilies - | Opt_OverloadedStrings - | Opt_DisambiguateRecordFields - | Opt_RecordWildCards - | Opt_RecordPuns - | Opt_ViewPatterns - | Opt_GADTs - | Opt_RelaxedPolyRec - | Opt_NPlusKPatterns - - | Opt_StandaloneDeriving - | Opt_DeriveDataTypeable - | Opt_DeriveFunctor - | Opt_DeriveTraversable - | Opt_DeriveFoldable - - | Opt_TypeSynonymInstances - | Opt_FlexibleContexts - | Opt_FlexibleInstances - | Opt_ConstrainedClassMethods - | Opt_MultiParamTypeClasses - | Opt_FunctionalDependencies - | Opt_UnicodeSyntax - | Opt_PolymorphicComponents - | Opt_ExistentialQuantification - | Opt_MagicHash - | Opt_EmptyDataDecls - | Opt_KindSignatures - | Opt_ParallelListComp - | Opt_TransformListComp - | Opt_GeneralizedNewtypeDeriving - | Opt_RecursiveDo - | Opt_DoRec - | Opt_PostfixOperators - | Opt_TupleSections - | Opt_PatternGuards - | Opt_LiberalTypeSynonyms - | Opt_Rank2Types - | Opt_RankNTypes - | Opt_ImpredicativeTypes - | Opt_TypeOperators - | Opt_PackageImports - | Opt_NewQualifiedOperators - | Opt_ExplicitForAll - | Opt_AlternativeLayoutRule - | Opt_AlternativeLayoutRuleTransitional - | Opt_PrintExplicitForalls -- optimisation opts @@ -273,7 +224,7 @@ data DynFlag | Opt_DoEtaReduction | Opt_CaseMerge | Opt_UnboxStrictFields - | Opt_MethodSharing + | Opt_MethodSharing -- Now a no-op; remove in GHC 7.2 | Opt_DictsCheap | Opt_EnableRewriteRules -- Apply rewrite rules during simplification | Opt_Vectorise @@ -291,7 +242,6 @@ data DynFlag | Opt_AutoSccsOnIndividualCafs -- misc opts - | Opt_Cpp | Opt_Pp | Opt_ForceRecomp | Opt_DryRun @@ -300,7 +250,6 @@ data DynFlag | Opt_EagerBlackHoling | Opt_ReadUserPackageConf | Opt_NoHsMain - | Opt_RtsOptsEnabled | Opt_SplitObjs | Opt_StgStats | Opt_HideAllPackages @@ -318,6 +267,7 @@ data DynFlag | Opt_SharedImplib | Opt_BuildingCabalPackage | Opt_SSE2 + | Opt_GhciSandbox -- temporary flags | Opt_RunCPS @@ -338,6 +288,83 @@ data DynFlag deriving (Eq, Show) +data Language = Haskell98 | Haskell2010 + +data ExtensionFlag + = Opt_Cpp + | Opt_OverlappingInstances + | Opt_UndecidableInstances + | Opt_IncoherentInstances + | Opt_MonomorphismRestriction + | Opt_MonoPatBinds + | Opt_MonoLocalBinds + | Opt_RelaxedPolyRec -- Deprecated + | Opt_ExtendedDefaultRules -- Use GHC's extended rules for defaulting + | Opt_ForeignFunctionInterface + | Opt_UnliftedFFITypes + | Opt_GHCForeignImportPrim + | Opt_PArr -- Syntactic support for parallel arrays + | Opt_Arrows -- Arrow-notation syntax + | Opt_TemplateHaskell + | Opt_QuasiQuotes + | Opt_ImplicitParams + | Opt_Generics -- "Derivable type classes" + | Opt_ImplicitPrelude + | Opt_ScopedTypeVariables + | Opt_UnboxedTuples + | Opt_BangPatterns + | Opt_TypeFamilies + | Opt_OverloadedStrings + | Opt_DisambiguateRecordFields + | Opt_RecordWildCards + | Opt_RecordPuns + | Opt_ViewPatterns + | Opt_GADTs + | Opt_NPlusKPatterns + | Opt_DoAndIfThenElse + | Opt_RebindableSyntax + + | Opt_StandaloneDeriving + | Opt_DeriveDataTypeable + | Opt_DeriveFunctor + | Opt_DeriveTraversable + | Opt_DeriveFoldable + + | Opt_TypeSynonymInstances + | Opt_FlexibleContexts + | Opt_FlexibleInstances + | Opt_ConstrainedClassMethods + | Opt_MultiParamTypeClasses + | Opt_FunctionalDependencies + | Opt_UnicodeSyntax + | Opt_PolymorphicComponents + | Opt_ExistentialQuantification + | Opt_MagicHash + | Opt_EmptyDataDecls + | Opt_KindSignatures + | Opt_ParallelListComp + | Opt_TransformListComp + | Opt_GeneralizedNewtypeDeriving + | Opt_RecursiveDo + | Opt_DoRec + | Opt_PostfixOperators + | Opt_TupleSections + | Opt_PatternGuards + | Opt_LiberalTypeSynonyms + | Opt_Rank2Types + | Opt_RankNTypes + | Opt_ImpredicativeTypes + | Opt_TypeOperators + | Opt_PackageImports + | Opt_NewQualifiedOperators + | Opt_ExplicitForAll + | Opt_AlternativeLayoutRule + | Opt_AlternativeLayoutRuleTransitional + | Opt_DatatypeContexts + | Opt_NondecreasingIndentation + | Opt_RelaxedLayout + deriving (Eq, Show) + -- | Contains not only a collection of 'DynFlag's but also a plethora of -- information relating to the compilation of a single file or GHC session data DynFlags = DynFlags { @@ -357,6 +384,8 @@ data DynFlags = DynFlags { specConstrThreshold :: Maybe Int, -- ^ Threshold for SpecConstr specConstrCount :: Maybe Int, -- ^ Max number of specialisations for any one function liberateCaseThreshold :: Maybe Int, -- ^ Threshold for LiberateCase + floatLamArgs :: Maybe Int, -- ^ Arg count for lambda floating + -- See CoreMonad.FloatOutSwitches #ifndef OMIT_NATIVE_CODEGEN targetPlatform :: Platform, -- ^ The platform we're compiling for. Used by the NCG. @@ -411,6 +440,7 @@ data DynFlags = DynFlags { ghcUsagePath :: FilePath, -- Filled in by SysTools ghciUsagePath :: FilePath, -- ditto rtsOpts :: Maybe String, + rtsOptsEnabled :: RtsOptsEnabled, hpcDir :: String, -- ^ Path to store the .mix files @@ -423,7 +453,6 @@ data DynFlags = DynFlags { opt_a :: [String], opt_l :: [String], opt_windres :: [String], - opt_la :: [String], -- LLVM: llvm-as assembler opt_lo :: [String], -- LLVM: llvm optimiser opt_lc :: [String], -- LLVM: llc static compiler @@ -440,7 +469,6 @@ data DynFlags = DynFlags { pgm_T :: String, pgm_sysman :: String, pgm_windres :: String, - pgm_la :: (String,[Option]), -- LLVM: llvm-as assembler pgm_lo :: (String,[Option]), -- LLVM: opt llvm optimiser pgm_lc :: (String,[Option]), -- LLVM: llc static compiler @@ -470,10 +498,17 @@ data DynFlags = DynFlags { -- These have to be IORefs, because the defaultCleanupHandler needs to -- know what to clean when an exception happens filesToClean :: IORef [FilePath], - dirsToClean :: IORef (FiniteMap FilePath FilePath), + dirsToClean :: IORef (Map FilePath FilePath), -- hsc dynamic flags flags :: [DynFlag], + -- Don't change this without updating extensionFlags: + language :: Maybe Language, + -- Don't change this without updating extensionFlags: + extensions :: [OnOff ExtensionFlag], + -- extensionFlags should always be equal to + -- flattenExtensionFlags language extensions + extensionFlags :: [ExtensionFlag], -- | Message output action: use "ErrUtils" instead of this if you can log_action :: Severity -> SrcSpan -> PprStyle -> Message -> IO (), @@ -580,17 +615,18 @@ defaultObjectTarget data DynLibLoader = Deployable - | Wrapped (Maybe String) | SystemDependent deriving Eq +data RtsOptsEnabled = RtsOptsNone | RtsOptsSafeOnly | RtsOptsAll + -- | Used by 'GHC.newSession' to partially initialize a new 'DynFlags' value initDynFlags :: DynFlags -> IO DynFlags initDynFlags dflags = do -- someday these will be dynamic flags ways <- readIORef v_Ways refFilesToClean <- newIORef [] - refDirsToClean <- newIORef emptyFM + refDirsToClean <- newIORef Map.empty return dflags{ ways = ways, buildTag = mkBuildTag (filter (not . wayRTSOnly) ways), @@ -618,6 +654,7 @@ defaultDynFlags = specConstrThreshold = Just 200, specConstrCount = Just 3, liberateCaseThreshold = Just 200, + floatLamArgs = Just 0, -- Default: float only if no fvs strictnessBefore = [], #ifndef OMIT_NATIVE_CODEGEN @@ -654,6 +691,7 @@ defaultDynFlags = cmdlineFrameworks = [], tmpDir = cDEFAULT_TMPDIR, rtsOpts = Nothing, + rtsOptsEnabled = RtsOptsSafeOnly, hpcDir = ".hpc", @@ -667,7 +705,6 @@ defaultDynFlags = opt_m = [], opt_l = [], opt_windres = [], - opt_la = [], opt_lo = [], opt_lc = [], @@ -696,7 +733,6 @@ defaultDynFlags = pgm_T = panic "defaultDynFlags: No pgm_T", pgm_sysman = panic "defaultDynFlags: No pgm_sysman", pgm_windres = panic "defaultDynFlags: No pgm_windres", - pgm_la = panic "defaultDynFlags: No pgm_la", pgm_lo = panic "defaultDynFlags: No pgm_lo", pgm_lc = panic "defaultDynFlags: No pgm_lc", -- end of initSysTools values @@ -709,37 +745,17 @@ defaultDynFlags = filesToClean = panic "defaultDynFlags: No filesToClean", dirsToClean = panic "defaultDynFlags: No dirsToClean", haddockOptions = Nothing, - flags = [ - Opt_AutoLinkPackages, - Opt_ReadUserPackageConf, - - Opt_MonoPatBinds, -- Experimentally, I'm making this non-standard - -- behaviour the default, to see if anyone notices - -- SLPJ July 06 - - Opt_ImplicitPrelude, - Opt_MonomorphismRestriction, - Opt_NPlusKPatterns, - - Opt_MethodSharing, - - Opt_DoAsmMangling, - - Opt_SharedImplib, - - Opt_GenManifest, - Opt_EmbedManifest, - Opt_PrintBindContents - ] - ++ [f | (ns,f) <- optLevelFlags, 0 `elem` ns] - -- The default -O0 options - ++ standardWarnings, + flags = defaultFlags, + language = Nothing, + extensions = [], + extensionFlags = flattenExtensionFlags Nothing [], log_action = \severity srcSpan style msg -> case severity of - SevInfo -> printErrs (msg style) - SevFatal -> printErrs (msg style) - _ -> do + SevOutput -> printOutput (msg style) + SevInfo -> printErrs (msg style) + SevFatal -> printErrs (msg style) + _ -> do hPutChar stderr '\n' printErrs ((mkLocMessage srcSpan msg) style) -- careful (#2302): printErrs prints in UTF-8, whereas @@ -758,6 +774,48 @@ Note [Verbosity levels] 5 | "ghc -v -ddump-all" -} +data OnOff a = On a + | Off a + +-- OnOffs accumulate in reverse order, so we use foldr in order to +-- process them in the right order +flattenExtensionFlags :: Maybe Language -> [OnOff ExtensionFlag] + -> [ExtensionFlag] +flattenExtensionFlags ml = foldr f defaultExtensionFlags + where f (On f) flags = f : delete f flags + f (Off f) flags = delete f flags + defaultExtensionFlags = languageExtensions ml + +languageExtensions :: Maybe Language -> [ExtensionFlag] + +languageExtensions Nothing + -- Nothing => the default case + = Opt_MonoPatBinds -- Experimentally, I'm making this non-standard + -- behaviour the default, to see if anyone notices + -- SLPJ July 06 + -- In due course I'd like Opt_MonoLocalBinds to be on by default + -- But NB it's implied by GADTs etc + -- SLPJ September 2010 + : Opt_NondecreasingIndentation -- This has been on by default for some time + : Opt_RelaxedLayout -- This has been on by default for some time + : languageExtensions (Just Haskell2010) + +languageExtensions (Just Haskell98) + = [Opt_ImplicitPrelude, + Opt_MonomorphismRestriction, + Opt_NPlusKPatterns, + Opt_DatatypeContexts] + +languageExtensions (Just Haskell2010) + = [Opt_ImplicitPrelude, + Opt_MonomorphismRestriction, + Opt_DatatypeContexts, + Opt_EmptyDataDecls, + Opt_ForeignFunctionInterface, + Opt_PatternGuards, + Opt_DoAndIfThenElse, + Opt_RelaxedPolyRec] + -- | Test whether a 'DynFlag' is set dopt :: DynFlag -> DynFlags -> Bool dopt f dflags = f `elem` (flags dflags) @@ -770,6 +828,33 @@ dopt_set dfs f = dfs{ flags = f : flags dfs } dopt_unset :: DynFlags -> DynFlag -> DynFlags dopt_unset dfs f = dfs{ flags = filter (/= f) (flags dfs) } +-- | Test whether a 'ExtensionFlag' is set +xopt :: ExtensionFlag -> DynFlags -> Bool +xopt f dflags = f `elem` extensionFlags dflags + +-- | Set a 'ExtensionFlag' +xopt_set :: DynFlags -> ExtensionFlag -> DynFlags +xopt_set dfs f + = let onoffs = On f : extensions dfs + in dfs { extensions = onoffs, + extensionFlags = flattenExtensionFlags (language dfs) onoffs } + +-- | Unset a 'ExtensionFlag' +xopt_unset :: DynFlags -> ExtensionFlag -> DynFlags +xopt_unset dfs f + = let onoffs = Off f : extensions dfs + in dfs { extensions = onoffs, + extensionFlags = flattenExtensionFlags (language dfs) onoffs } + +setLanguage :: Language -> DynP () +setLanguage l = upd f + where f dfs = let mLang = Just l + oneoffs = extensions dfs + in dfs { + language = mLang, + extensionFlags = flattenExtensionFlags mLang oneoffs + } + -- | Retrieve the options corresponding to a particular @opt_*@ field in the correct order getOpts :: DynFlags -- ^ 'DynFlags' to retrieve the options from -> (DynFlags -> [a]) -- ^ Relevant record accessor: one of the @opt_*@ accessors @@ -786,10 +871,8 @@ getVerbFlag dflags setObjectDir, setHiDir, setStubDir, setOutputDir, setDylibInstallName, setObjectSuf, setHiSuf, setHcSuf, parseDynLibLoaderMode, - setPgmP, setPgmL, setPgmF, setPgmc, setPgmm, setPgms, setPgma, setPgml, setPgmdll, setPgmwindres, - setPgmla, setPgmlo, setPgmlc, - addOptL, addOptP, addOptF, addOptc, addOptm, addOpta, addOptl, addOptwindres, addOptla, addOptlo, - addOptlc, addCmdlineFramework, addHaddockOpts + setPgmP, addOptl, addOptP, + addCmdlineFramework, addHaddockOpts :: String -> DynFlags -> DynFlags setOutputFile, setOutputHi, setDumpPrefixForce :: Maybe String -> DynFlags -> DynFlags @@ -813,9 +896,6 @@ parseDynLibLoaderMode f d = case splitAt 8 f of ("deploy", "") -> d{ dynLibLoader = Deployable } ("sysdep", "") -> d{ dynLibLoader = SystemDependent } - ("wrapped", "") -> d{ dynLibLoader = Wrapped Nothing } - ("wrapped:", "hard") -> d{ dynLibLoader = Wrapped Nothing } - ("wrapped:", flex) -> d{ dynLibLoader = Wrapped (Just flex) } _ -> ghcError (CmdLineError ("Unknown dynlib loader: " ++ f)) setDumpPrefixForce f d = d { dumpPrefixForce = f} @@ -823,31 +903,9 @@ setDumpPrefixForce f d = d { dumpPrefixForce = f} -- XXX HACK: Prelude> words "'does not' work" ===> ["'does","not'","work"] -- Config.hs should really use Option. setPgmP f d = let (pgm:args) = words f in d{ pgm_P = (pgm, map Option args)} - -setPgmL f d = d{ pgm_L = f} -setPgmF f d = d{ pgm_F = f} -setPgmc f d = d{ pgm_c = (f,[])} -setPgmm f d = d{ pgm_m = (f,[])} -setPgms f d = d{ pgm_s = (f,[])} -setPgma f d = d{ pgm_a = (f,[])} -setPgml f d = d{ pgm_l = (f,[])} -setPgmdll f d = d{ pgm_dll = (f,[])} -setPgmwindres f d = d{ pgm_windres = f} -setPgmla f d = d{ pgm_la = (f,[])} -setPgmlo f d = d{ pgm_lo = (f,[])} -setPgmlc f d = d{ pgm_lc = (f,[])} - -addOptL f d = d{ opt_L = f : opt_L d} -addOptP f d = d{ opt_P = f : opt_P d} -addOptF f d = d{ opt_F = f : opt_F d} -addOptc f d = d{ opt_c = f : opt_c d} -addOptm f d = d{ opt_m = f : opt_m d} -addOpta f d = d{ opt_a = f : opt_a d} addOptl f d = d{ opt_l = f : opt_l d} -addOptwindres f d = d{ opt_windres = f : opt_windres d} -addOptla f d = d{ opt_la = f : opt_la d} -addOptlo f d = d{ opt_lo = f : opt_lo d} -addOptlc f d = d{ opt_lc = f : opt_lc d} +addOptP f d = d{ opt_P = f : opt_P d} + setDepMakefile :: FilePath -> DynFlags -> DynFlags setDepMakefile f d = d { depMakefile = deOptDep f } @@ -909,94 +967,6 @@ updOptLevel n dfs extra_dopts = [ f | (ns,f) <- optLevelFlags, final_n `elem` ns ] remove_dopts = [ f | (ns,f) <- optLevelFlags, final_n `notElem` ns ] -optLevelFlags :: [([Int], DynFlag)] -optLevelFlags - = [ ([0], Opt_IgnoreInterfacePragmas) - , ([0], Opt_OmitInterfacePragmas) - - , ([1,2], Opt_IgnoreAsserts) - , ([1,2], Opt_EnableRewriteRules) -- Off for -O0; see Note [Scoping for Builtin rules] - -- in PrelRules - , ([1,2], Opt_DoEtaReduction) - , ([1,2], Opt_CaseMerge) - , ([1,2], Opt_Strictness) - , ([1,2], Opt_CSE) - , ([1,2], Opt_FullLaziness) - , ([1,2], Opt_Specialise) - , ([1,2], Opt_FloatIn) - - , ([2], Opt_LiberateCase) - , ([2], Opt_SpecConstr) - --- , ([2], Opt_StaticArgumentTransformation) --- Max writes: I think it's probably best not to enable SAT with -O2 for the --- 6.10 release. The version of SAT in HEAD at the moment doesn't incorporate --- several improvements to the heuristics, and I'm concerned that without --- those changes SAT will interfere with some attempts to write "high --- performance Haskell", as we saw in some posts on Haskell-Cafe earlier --- this year. In particular, the version in HEAD lacks the tail call --- criterion, so many things that look like reasonable loops will be --- turned into functions with extra (unneccesary) thunk creation. - - , ([0,1,2], Opt_DoLambdaEtaExpansion) - -- This one is important for a tiresome reason: - -- we want to make sure that the bindings for data - -- constructors are eta-expanded. This is probably - -- a good thing anyway, but it seems fragile. - ] - --- ----------------------------------------------------------------------------- --- Standard sets of warning options - -standardWarnings :: [DynFlag] -standardWarnings - = [ Opt_WarnWarningsDeprecations, - Opt_WarnDeprecatedFlags, - Opt_WarnUnrecognisedPragmas, - Opt_WarnOverlappingPatterns, - Opt_WarnMissingFields, - Opt_WarnMissingMethods, - Opt_WarnDuplicateExports, - Opt_WarnLazyUnliftedBindings, - Opt_WarnDodgyForeignImports, - Opt_WarnWrongDoBind, - Opt_WarnAlternativeLayoutRuleTransitional - ] - -minusWOpts :: [DynFlag] -minusWOpts - = standardWarnings ++ - [ Opt_WarnUnusedBinds, - Opt_WarnUnusedMatches, - Opt_WarnUnusedImports, - Opt_WarnIncompletePatterns, - Opt_WarnDodgyExports, - Opt_WarnDodgyImports - ] - -minusWallOpts :: [DynFlag] -minusWallOpts - = minusWOpts ++ - [ Opt_WarnTypeDefaults, - Opt_WarnNameShadowing, - Opt_WarnMissingSigs, - Opt_WarnHiShadows, - Opt_WarnOrphans, - Opt_WarnUnusedDoBind - ] - --- minuswRemovesOpts should be every warning option -minuswRemovesOpts :: [DynFlag] -minuswRemovesOpts - = minusWallOpts ++ - [Opt_WarnImplicitPrelude, - Opt_WarnIncompletePatternsRecUpd, - Opt_WarnSimplePatterns, - Opt_WarnMonomorphism, - Opt_WarnUnrecognisedPragmas, - Opt_WarnTabs - ] - -- ----------------------------------------------------------------------------- -- StgToDo: abstraction of stg-to-stg passes to run. @@ -1019,704 +989,795 @@ getStgToDo dflags | otherwise = todo1 +{- ********************************************************************** +%* * + DynFlags parser +%* * +%********************************************************************* -} + -- ----------------------------------------------------------------------------- --- DynFlags parser +-- Parsing the dynamic flags. + +-- | Parse dynamic flags from a list of command line arguments. Returns the +-- the parsed 'DynFlags', the left-over arguments, and a list of warnings. +-- Throws a 'UsageError' if errors occurred during parsing (such as unknown +-- flags or missing arguments). +parseDynamicFlags :: Monad m => + DynFlags -> [Located String] + -> m (DynFlags, [Located String], [Located String]) + -- ^ Updated 'DynFlags', left-over arguments, and + -- list of warnings. +parseDynamicFlags dflags args = parseDynamicFlags_ dflags args True + +-- | Like 'parseDynamicFlags' but does not allow the package flags (-package, +-- -hide-package, -ignore-package, -hide-all-packages, -package-conf). +parseDynamicNoPackageFlags :: Monad m => + DynFlags -> [Located String] + -> m (DynFlags, [Located String], [Located String]) + -- ^ Updated 'DynFlags', left-over arguments, and + -- list of warnings. +parseDynamicNoPackageFlags dflags args = parseDynamicFlags_ dflags args False + +parseDynamicFlags_ :: Monad m => + DynFlags -> [Located String] -> Bool + -> m (DynFlags, [Located String], [Located String]) +parseDynamicFlags_ dflags0 args pkg_flags = do + -- XXX Legacy support code + -- We used to accept things like + -- optdep-f -optdepdepend + -- optdep-f -optdep depend + -- optdep -f -optdepdepend + -- optdep -f -optdep depend + -- but the spaces trip up proper argument handling. So get rid of them. + let f (L p "-optdep" : L _ x : xs) = (L p ("-optdep" ++ x)) : f xs + f (x : xs) = x : f xs + f xs = xs + args' = f args + + -- Note: -ignore-package (package_flags) must precede -i* (dynamic_flags) + flag_spec | pkg_flags = package_flags ++ dynamic_flags + | otherwise = dynamic_flags + + let ((leftover, errs, warns), dflags1) + = runCmdLine (processArgs flag_spec args') dflags0 + when (not (null errs)) $ ghcError $ errorsToGhcException errs + + -- Cannot use -fPIC with registerised -fvia-C, because the mangler + -- isn't up to the job. We know that if hscTarget == HscC, then the + -- user has explicitly used -fvia-C, because -fasm is the default, + -- unless there is no NCG on this platform. The latter case is + -- checked when the -fPIC flag is parsed. + -- + let (pic_warns, dflags2) + | opt_PIC && hscTarget dflags1 == HscC && cGhcUnregisterised == "NO" + = ([L noSrcSpan $ "Warning: -fvia-C is incompatible with -fPIC; ignoring -fvia-C"], + dflags1{ hscTarget = HscAsm }) +#if !(x86_64_TARGET_ARCH && linux_TARGET_OS) + | (not opt_Static || opt_PIC) && hscTarget dflags1 == HscLlvm + = ([L noSrcSpan $ "Warning: -fllvm is incompatible with -fPIC and -" + ++ "dynamic on this platform;\n ignoring -fllvm"], + dflags1{ hscTarget = HscAsm }) +#endif + | otherwise = ([], dflags1) + + return (dflags2, leftover, pic_warns ++ warns) + + +{- ********************************************************************** +%* * + DynFlags specifications +%* * +%********************************************************************* -} allFlags :: [String] allFlags = map ('-':) $ [ flagName flag | flag <- dynamic_flags, ok (flagOptKind flag) ] ++ map ("fno-"++) flags ++ map ("f"++) flags ++ - map ("X"++) supportedLanguages + map ("f"++) flags' ++ + map ("X"++) supportedExtensions where ok (PrefixPred _ _) = False ok _ = True flags = [ name | (name, _, _) <- fFlags ] + flags' = [ name | (name, _, _) <- fLangFlags ] -dynamic_flags :: [Flag DynP] +--------------- The main flags themselves ------------------ +dynamic_flags :: [Flag (CmdLineP DynFlags)] dynamic_flags = [ - Flag "n" (NoArg (setDynFlag Opt_DryRun)) Supported - , Flag "cpp" (NoArg (setDynFlag Opt_Cpp)) Supported - , Flag "F" (NoArg (setDynFlag Opt_Pp)) Supported - , Flag "#include" (HasArg (addCmdlineHCInclude)) - (DeprecatedFullText "-#include and INCLUDE pragmas are deprecated: They no longer have any effect") - , Flag "v" (OptIntSuffix setVerbosity) Supported + Flag "n" (NoArg (setDynFlag Opt_DryRun)) + , Flag "cpp" (NoArg (setExtensionFlag Opt_Cpp)) + , Flag "F" (NoArg (setDynFlag Opt_Pp)) + , Flag "#include" + (HasArg (\s -> do { addCmdlineHCInclude s + ; addWarn "-#include and INCLUDE pragmas are deprecated: They no longer have any effect" })) + , Flag "v" (OptIntSuffix setVerbosity) ------- Specific phases -------------------------------------------- -- need to appear before -pgmL to be parsed as LLVM flags. - , Flag "pgmla" (HasArg (upd . setPgmla)) Supported - , Flag "pgmlo" (HasArg (upd . setPgmlo)) Supported - , Flag "pgmlc" (HasArg (upd . setPgmlc)) Supported - - , Flag "pgmL" (HasArg (upd . setPgmL)) Supported - , Flag "pgmP" (HasArg (upd . setPgmP)) Supported - , Flag "pgmF" (HasArg (upd . setPgmF)) Supported - , Flag "pgmc" (HasArg (upd . setPgmc)) Supported - , Flag "pgmm" (HasArg (upd . setPgmm)) Supported - , Flag "pgms" (HasArg (upd . setPgms)) Supported - , Flag "pgma" (HasArg (upd . setPgma)) Supported - , Flag "pgml" (HasArg (upd . setPgml)) Supported - , Flag "pgmdll" (HasArg (upd . setPgmdll)) Supported - , Flag "pgmwindres" (HasArg (upd . setPgmwindres)) Supported + , Flag "pgmlo" (hasArg (\f d -> d{ pgm_lo = (f,[])})) + , Flag "pgmlc" (hasArg (\f d -> d{ pgm_lc = (f,[])})) + , Flag "pgmL" (hasArg (\f d -> d{ pgm_L = f})) + , Flag "pgmP" (hasArg setPgmP) + , Flag "pgmF" (hasArg (\f d -> d{ pgm_F = f})) + , Flag "pgmc" (hasArg (\f d -> d{ pgm_c = (f,[])})) + , Flag "pgmm" (hasArg (\f d -> d{ pgm_m = (f,[])})) + , Flag "pgms" (hasArg (\f d -> d{ pgm_s = (f,[])})) + , Flag "pgma" (hasArg (\f d -> d{ pgm_a = (f,[])})) + , Flag "pgml" (hasArg (\f d -> d{ pgm_l = (f,[])})) + , Flag "pgmdll" (hasArg (\f d -> d{ pgm_dll = (f,[])})) + , Flag "pgmwindres" (hasArg (\f d -> d{ pgm_windres = f})) -- need to appear before -optl/-opta to be parsed as LLVM flags. - , Flag "optla" (HasArg (upd . addOptla)) Supported - , Flag "optlo" (HasArg (upd . addOptlo)) Supported - , Flag "optlc" (HasArg (upd . addOptlc)) Supported - - , Flag "optL" (HasArg (upd . addOptL)) Supported - , Flag "optP" (HasArg (upd . addOptP)) Supported - , Flag "optF" (HasArg (upd . addOptF)) Supported - , Flag "optc" (HasArg (upd . addOptc)) Supported - , Flag "optm" (HasArg (upd . addOptm)) Supported - , Flag "opta" (HasArg (upd . addOpta)) Supported - , Flag "optl" (HasArg (upd . addOptl)) Supported - , Flag "optwindres" (HasArg (upd . addOptwindres)) Supported + , Flag "optlo" (hasArg (\f d -> d{ opt_lo = f : opt_lo d})) + , Flag "optlc" (hasArg (\f d -> d{ opt_lc = f : opt_lc d})) + , Flag "optL" (hasArg (\f d -> d{ opt_L = f : opt_L d})) + , Flag "optP" (hasArg addOptP) + , Flag "optF" (hasArg (\f d -> d{ opt_F = f : opt_F d})) + , Flag "optc" (hasArg (\f d -> d{ opt_c = f : opt_c d})) + , Flag "optm" (hasArg (\f d -> d{ opt_m = f : opt_m d})) + , Flag "opta" (hasArg (\f d -> d{ opt_a = f : opt_a d})) + , Flag "optl" (hasArg addOptl) + , Flag "optwindres" (hasArg (\f d -> d{ opt_windres = f : opt_windres d})) , Flag "split-objs" - (NoArg (if can_split then setDynFlag Opt_SplitObjs else return ())) - Supported + (NoArg (if can_split + then setDynFlag Opt_SplitObjs + else addWarn "ignoring -fsplit-objs")) -------- ghc -M ----------------------------------------------------- - , Flag "dep-suffix" (HasArg (upd . addDepSuffix)) Supported - , Flag "optdep-s" (HasArg (upd . addDepSuffix)) - (Deprecated "Use -dep-suffix instead") - , Flag "dep-makefile" (HasArg (upd . setDepMakefile)) Supported - , Flag "optdep-f" (HasArg (upd . setDepMakefile)) - (Deprecated "Use -dep-makefile instead") - , Flag "optdep-w" (NoArg (return ())) - (Deprecated "-optdep-w doesn't do anything") - , Flag "include-pkg-deps" (NoArg (upd (setDepIncludePkgDeps True))) Supported - , Flag "optdep--include-prelude" (NoArg (upd (setDepIncludePkgDeps True))) - (Deprecated "Use -include-pkg-deps instead") - , Flag "optdep--include-pkg-deps" (NoArg (upd (setDepIncludePkgDeps True))) - (Deprecated "Use -include-pkg-deps instead") - , Flag "exclude-module" (HasArg (upd . addDepExcludeMod)) Supported - , Flag "optdep--exclude-module" (HasArg (upd . addDepExcludeMod)) - (Deprecated "Use -exclude-module instead") - , Flag "optdep-x" (HasArg (upd . addDepExcludeMod)) - (Deprecated "Use -exclude-module instead") + , Flag "dep-suffix" (hasArg addDepSuffix) + , Flag "optdep-s" (hasArgDF addDepSuffix "Use -dep-suffix instead") + , Flag "dep-makefile" (hasArg setDepMakefile) + , Flag "optdep-f" (hasArgDF setDepMakefile "Use -dep-makefile instead") + , Flag "optdep-w" (NoArg (deprecate "doesn't do anything")) + , Flag "include-pkg-deps" (noArg (setDepIncludePkgDeps True)) + , Flag "optdep--include-prelude" (noArgDF (setDepIncludePkgDeps True) "Use -include-pkg-deps instead") + , Flag "optdep--include-pkg-deps" (noArgDF (setDepIncludePkgDeps True) "Use -include-pkg-deps instead") + , Flag "exclude-module" (hasArg addDepExcludeMod) + , Flag "optdep--exclude-module" (hasArgDF addDepExcludeMod "Use -exclude-module instead") + , Flag "optdep-x" (hasArgDF addDepExcludeMod "Use -exclude-module instead") -------- Linking ---------------------------------------------------- - , Flag "no-link" (NoArg (upd $ \d -> d{ ghcLink=NoLink } )) - Supported - , Flag "shared" (NoArg (upd $ \d -> d{ ghcLink=LinkDynLib } )) - Supported - , Flag "dynload" (HasArg (upd . parseDynLibLoaderMode)) - Supported - , Flag "dylib-install-name" (HasArg (upd . setDylibInstallName)) Supported + , Flag "no-link" (noArg (\d -> d{ ghcLink=NoLink })) + , Flag "shared" (noArg (\d -> d{ ghcLink=LinkDynLib })) + , Flag "dynload" (hasArg parseDynLibLoaderMode) + , Flag "dylib-install-name" (hasArg setDylibInstallName) ------- Libraries --------------------------------------------------- - , Flag "L" (Prefix addLibraryPath ) Supported - , Flag "l" (AnySuffix (\s -> do upd (addOptl s))) Supported + , Flag "L" (Prefix addLibraryPath) + , Flag "l" (AnySuffix (upd . addOptl)) ------- Frameworks -------------------------------------------------- -- -framework-path should really be -F ... - , Flag "framework-path" (HasArg addFrameworkPath ) Supported - , Flag "framework" (HasArg (upd . addCmdlineFramework)) Supported + , Flag "framework-path" (HasArg addFrameworkPath) + , Flag "framework" (hasArg addCmdlineFramework) ------- Output Redirection ------------------------------------------ - , Flag "odir" (HasArg (upd . setObjectDir)) Supported - , Flag "o" (SepArg (upd . setOutputFile . Just)) Supported - , Flag "ohi" (HasArg (upd . setOutputHi . Just )) Supported - , Flag "osuf" (HasArg (upd . setObjectSuf)) Supported - , Flag "hcsuf" (HasArg (upd . setHcSuf)) Supported - , Flag "hisuf" (HasArg (upd . setHiSuf)) Supported - , Flag "hidir" (HasArg (upd . setHiDir)) Supported - , Flag "tmpdir" (HasArg (upd . setTmpDir)) Supported - , Flag "stubdir" (HasArg (upd . setStubDir)) Supported - , Flag "outputdir" (HasArg (upd . setOutputDir)) Supported - , Flag "ddump-file-prefix" (HasArg (upd . setDumpPrefixForce . Just)) - Supported + , Flag "odir" (hasArg setObjectDir) + , Flag "o" (SepArg (upd . setOutputFile . Just)) + , Flag "ohi" (hasArg (setOutputHi . Just )) + , Flag "osuf" (hasArg setObjectSuf) + , Flag "hcsuf" (hasArg setHcSuf) + , Flag "hisuf" (hasArg setHiSuf) + , Flag "hidir" (hasArg setHiDir) + , Flag "tmpdir" (hasArg setTmpDir) + , Flag "stubdir" (hasArg setStubDir) + , Flag "outputdir" (hasArg setOutputDir) + , Flag "ddump-file-prefix" (hasArg (setDumpPrefixForce . Just)) ------- Keeping temporary files ------------------------------------- -- These can be singular (think ghc -c) or plural (think ghc --make) - , Flag "keep-hc-file" (NoArg (setDynFlag Opt_KeepHcFiles)) Supported - , Flag "keep-hc-files" (NoArg (setDynFlag Opt_KeepHcFiles)) Supported - , Flag "keep-s-file" (NoArg (setDynFlag Opt_KeepSFiles)) Supported - , Flag "keep-s-files" (NoArg (setDynFlag Opt_KeepSFiles)) Supported - , Flag "keep-raw-s-file" (NoArg (setDynFlag Opt_KeepRawSFiles)) Supported - , Flag "keep-raw-s-files" (NoArg (setDynFlag Opt_KeepRawSFiles)) Supported - , Flag "keep-llvm-file" (NoArg (setDynFlag Opt_KeepLlvmFiles)) Supported - , Flag "keep-llvm-files" (NoArg (setDynFlag Opt_KeepLlvmFiles)) Supported + , Flag "keep-hc-file" (NoArg (setDynFlag Opt_KeepHcFiles)) + , Flag "keep-hc-files" (NoArg (setDynFlag Opt_KeepHcFiles)) + , Flag "keep-s-file" (NoArg (setDynFlag Opt_KeepSFiles)) + , Flag "keep-s-files" (NoArg (setDynFlag Opt_KeepSFiles)) + , Flag "keep-raw-s-file" (NoArg (setDynFlag Opt_KeepRawSFiles)) + , Flag "keep-raw-s-files" (NoArg (setDynFlag Opt_KeepRawSFiles)) + , Flag "keep-llvm-file" (NoArg (setDynFlag Opt_KeepLlvmFiles)) + , Flag "keep-llvm-files" (NoArg (setDynFlag Opt_KeepLlvmFiles)) -- This only makes sense as plural - , Flag "keep-tmp-files" (NoArg (setDynFlag Opt_KeepTmpFiles)) Supported + , Flag "keep-tmp-files" (NoArg (setDynFlag Opt_KeepTmpFiles)) ------- Miscellaneous ---------------------------------------------- - , Flag "no-auto-link-packages" (NoArg (unSetDynFlag Opt_AutoLinkPackages)) Supported - , Flag "no-hs-main" (NoArg (setDynFlag Opt_NoHsMain)) Supported - , Flag "with-rtsopts" (HasArg setRtsOpts) Supported - , Flag "rtsopts" (NoArg (setDynFlag Opt_RtsOptsEnabled)) Supported - , Flag "no-rtsopts" (NoArg (unSetDynFlag Opt_RtsOptsEnabled)) Supported - , Flag "main-is" (SepArg setMainIs ) Supported - , Flag "haddock" (NoArg (setDynFlag Opt_Haddock)) Supported - , Flag "haddock-opts" (HasArg (upd . addHaddockOpts)) Supported - , Flag "hpcdir" (SepArg setOptHpcDir) Supported + , Flag "no-auto-link-packages" (NoArg (unSetDynFlag Opt_AutoLinkPackages)) + , Flag "no-hs-main" (NoArg (setDynFlag Opt_NoHsMain)) + , Flag "with-rtsopts" (HasArg setRtsOpts) + , Flag "rtsopts" (NoArg (setRtsOptsEnabled RtsOptsAll)) + , Flag "rtsopts=all" (NoArg (setRtsOptsEnabled RtsOptsAll)) + , Flag "rtsopts=some" (NoArg (setRtsOptsEnabled RtsOptsSafeOnly)) + , Flag "rtsopts=none" (NoArg (setRtsOptsEnabled RtsOptsNone)) + , Flag "no-rtsopts" (NoArg (setRtsOptsEnabled RtsOptsNone)) + , Flag "main-is" (SepArg setMainIs) + , Flag "haddock" (NoArg (setDynFlag Opt_Haddock)) + , Flag "haddock-opts" (hasArg addHaddockOpts) + , Flag "hpcdir" (SepArg setOptHpcDir) ------- recompilation checker -------------------------------------- - , Flag "recomp" (NoArg (unSetDynFlag Opt_ForceRecomp)) - (Deprecated "Use -fno-force-recomp instead") - , Flag "no-recomp" (NoArg (setDynFlag Opt_ForceRecomp)) - (Deprecated "Use -fforce-recomp instead") + , Flag "recomp" (NoArg (do { unSetDynFlag Opt_ForceRecomp + ; deprecate "Use -fno-force-recomp instead" })) + , Flag "no-recomp" (NoArg (do { setDynFlag Opt_ForceRecomp + ; deprecate "Use -fforce-recomp instead" })) ------ HsCpp opts --------------------------------------------------- - , Flag "D" (AnySuffix (upd . addOptP)) Supported - , Flag "U" (AnySuffix (upd . addOptP)) Supported + , Flag "D" (AnySuffix (upd . addOptP)) + , Flag "U" (AnySuffix (upd . addOptP)) ------- Include/Import Paths ---------------------------------------- - , Flag "I" (Prefix addIncludePath) Supported - , Flag "i" (OptPrefix addImportPath ) Supported + , Flag "I" (Prefix addIncludePath) + , Flag "i" (OptPrefix addImportPath) ------ Debugging ---------------------------------------------------- - , Flag "dstg-stats" (NoArg (setDynFlag Opt_StgStats)) Supported + , Flag "dstg-stats" (NoArg (setDynFlag Opt_StgStats)) , Flag "ddump-cmm" (setDumpFlag Opt_D_dump_cmm) - Supported , Flag "ddump-cmmz" (setDumpFlag Opt_D_dump_cmmz) - Supported , Flag "ddump-cmmz-pretty" (setDumpFlag Opt_D_dump_cmmz_pretty) - Supported , Flag "ddump-cps-cmm" (setDumpFlag Opt_D_dump_cps_cmm) - Supported , Flag "ddump-cvt-cmm" (setDumpFlag Opt_D_dump_cvt_cmm) - Supported , Flag "ddump-asm" (setDumpFlag Opt_D_dump_asm) - Supported , Flag "ddump-asm-native" (setDumpFlag Opt_D_dump_asm_native) - Supported , Flag "ddump-asm-liveness" (setDumpFlag Opt_D_dump_asm_liveness) - Supported , Flag "ddump-asm-coalesce" (setDumpFlag Opt_D_dump_asm_coalesce) - Supported , Flag "ddump-asm-regalloc" (setDumpFlag Opt_D_dump_asm_regalloc) - Supported , Flag "ddump-asm-conflicts" (setDumpFlag Opt_D_dump_asm_conflicts) - Supported - , Flag "ddump-asm-regalloc-stages" - (setDumpFlag Opt_D_dump_asm_regalloc_stages) - Supported + , Flag "ddump-asm-regalloc-stages" (setDumpFlag Opt_D_dump_asm_regalloc_stages) , Flag "ddump-asm-stats" (setDumpFlag Opt_D_dump_asm_stats) - Supported , Flag "ddump-asm-expanded" (setDumpFlag Opt_D_dump_asm_expanded) - Supported , Flag "ddump-llvm" (NoArg (do { setObjTarget HscLlvm ; setDumpFlag' Opt_D_dump_llvm})) - Supported - , Flag "ddump-opt-llvm" (setDumpFlag Opt_D_dump_llvm_opt) - Supported , Flag "ddump-cpranal" (setDumpFlag Opt_D_dump_cpranal) - Supported , Flag "ddump-deriv" (setDumpFlag Opt_D_dump_deriv) - Supported , Flag "ddump-ds" (setDumpFlag Opt_D_dump_ds) - Supported , Flag "ddump-flatC" (setDumpFlag Opt_D_dump_flatC) - Supported , Flag "ddump-foreign" (setDumpFlag Opt_D_dump_foreign) - Supported , Flag "ddump-inlinings" (setDumpFlag Opt_D_dump_inlinings) - Supported , Flag "ddump-rule-firings" (setDumpFlag Opt_D_dump_rule_firings) - Supported , Flag "ddump-occur-anal" (setDumpFlag Opt_D_dump_occur_anal) - Supported , Flag "ddump-parsed" (setDumpFlag Opt_D_dump_parsed) - Supported , Flag "ddump-rn" (setDumpFlag Opt_D_dump_rn) - Supported , Flag "ddump-simpl" (setDumpFlag Opt_D_dump_simpl) - Supported , Flag "ddump-simpl-iterations" (setDumpFlag Opt_D_dump_simpl_iterations) - Supported , Flag "ddump-simpl-phases" (OptPrefix setDumpSimplPhases) - Supported , Flag "ddump-spec" (setDumpFlag Opt_D_dump_spec) - Supported , Flag "ddump-prep" (setDumpFlag Opt_D_dump_prep) - Supported , Flag "ddump-stg" (setDumpFlag Opt_D_dump_stg) - Supported , Flag "ddump-stranal" (setDumpFlag Opt_D_dump_stranal) - Supported , Flag "ddump-tc" (setDumpFlag Opt_D_dump_tc) - Supported , Flag "ddump-types" (setDumpFlag Opt_D_dump_types) - Supported , Flag "ddump-rules" (setDumpFlag Opt_D_dump_rules) - Supported , Flag "ddump-cse" (setDumpFlag Opt_D_dump_cse) - Supported , Flag "ddump-worker-wrapper" (setDumpFlag Opt_D_dump_worker_wrapper) - Supported , Flag "ddump-rn-trace" (setDumpFlag Opt_D_dump_rn_trace) - Supported , Flag "ddump-if-trace" (setDumpFlag Opt_D_dump_if_trace) - Supported , Flag "ddump-tc-trace" (setDumpFlag Opt_D_dump_tc_trace) - Supported , Flag "ddump-splices" (setDumpFlag Opt_D_dump_splices) - Supported , Flag "ddump-rn-stats" (setDumpFlag Opt_D_dump_rn_stats) - Supported , Flag "ddump-opt-cmm" (setDumpFlag Opt_D_dump_opt_cmm) - Supported , Flag "ddump-simpl-stats" (setDumpFlag Opt_D_dump_simpl_stats) - Supported , Flag "ddump-bcos" (setDumpFlag Opt_D_dump_BCOs) - Supported , Flag "dsource-stats" (setDumpFlag Opt_D_source_stats) - Supported , Flag "dverbose-core2core" (NoArg (do { setVerbosity (Just 2) ; setVerboseCore2Core })) - Supported , Flag "dverbose-stg2stg" (setDumpFlag Opt_D_verbose_stg2stg) - Supported , Flag "ddump-hi" (setDumpFlag Opt_D_dump_hi) - Supported , Flag "ddump-minimal-imports" (setDumpFlag Opt_D_dump_minimal_imports) - Supported , Flag "ddump-vect" (setDumpFlag Opt_D_dump_vect) - Supported , Flag "ddump-hpc" (setDumpFlag Opt_D_dump_hpc) - Supported , Flag "ddump-mod-cycles" (setDumpFlag Opt_D_dump_mod_cycles) - Supported , Flag "ddump-view-pattern-commoning" (setDumpFlag Opt_D_dump_view_pattern_commoning) - Supported , Flag "ddump-to-file" (setDumpFlag Opt_DumpToFile) - Supported , Flag "ddump-hi-diffs" (setDumpFlag Opt_D_dump_hi_diffs) - Supported , Flag "ddump-rtti" (setDumpFlag Opt_D_dump_rtti) - Supported - , Flag "dcore-lint" (NoArg (setDynFlag Opt_DoCoreLinting)) - Supported , Flag "dstg-lint" (NoArg (setDynFlag Opt_DoStgLinting)) - Supported , Flag "dcmm-lint" (NoArg (setDynFlag Opt_DoCmmLinting)) - Supported , Flag "dasm-lint" (NoArg (setDynFlag Opt_DoAsmLinting)) - Supported - , Flag "dshow-passes" - (NoArg (do forceRecompile - setVerbosity (Just 2))) - Supported + , Flag "dshow-passes" (NoArg (do forceRecompile + setVerbosity (Just 2))) , Flag "dfaststring-stats" (NoArg (setDynFlag Opt_D_faststring_stats)) - Supported ------ Machine dependant (-m) stuff --------------------------- - , Flag "monly-2-regs" (NoArg (upd (\s -> s{stolen_x86_regs = 2}) )) - Supported - , Flag "monly-3-regs" (NoArg (upd (\s -> s{stolen_x86_regs = 3}) )) - Supported - , Flag "monly-4-regs" (NoArg (upd (\s -> s{stolen_x86_regs = 4}) )) - Supported - - , Flag "msse2" (NoArg (setDynFlag Opt_SSE2)) - Supported + , Flag "monly-2-regs" (noArg (\s -> s{stolen_x86_regs = 2})) + , Flag "monly-3-regs" (noArg (\s -> s{stolen_x86_regs = 3})) + , Flag "monly-4-regs" (noArg (\s -> s{stolen_x86_regs = 4})) + , Flag "msse2" (NoArg (setDynFlag Opt_SSE2)) ------ Warning opts ------------------------------------------------- , Flag "W" (NoArg (mapM_ setDynFlag minusWOpts)) - Supported , Flag "Werror" (NoArg (setDynFlag Opt_WarnIsError)) - Supported , Flag "Wwarn" (NoArg (unSetDynFlag Opt_WarnIsError)) - Supported , Flag "Wall" (NoArg (mapM_ setDynFlag minusWallOpts)) - Supported - , Flag "Wnot" (NoArg (mapM_ unSetDynFlag minusWallOpts)) - (Deprecated "Use -w instead") + , Flag "Wnot" (NoArg (do { mapM_ unSetDynFlag minusWallOpts + ; deprecate "Use -w instead" })) , Flag "w" (NoArg (mapM_ unSetDynFlag minuswRemovesOpts)) - Supported ------ Optimisation flags ------------------------------------------ - , Flag "O" (NoArg (upd (setOptLevel 1))) Supported - , Flag "Onot" (NoArg (upd (setOptLevel 0))) - (Deprecated "Use -O0 instead") - , Flag "Odph" (NoArg (upd setDPHOpt)) Supported + , Flag "O" (noArg (setOptLevel 1)) + , Flag "Onot" (noArgDF (setOptLevel 0) "Use -O0 instead") + , Flag "Odph" (noArg setDPHOpt) , Flag "O" (OptIntSuffix (\mb_n -> upd (setOptLevel (mb_n `orElse` 1)))) - Supported -- If the number is missing, use 1 - , Flag "fsimplifier-phases" - (IntSuffix (\n -> upd (\dfs -> dfs{ simplPhases = n }))) - Supported - , Flag "fmax-simplifier-iterations" - (IntSuffix (\n -> upd (\dfs -> dfs{ maxSimplIterations = n }))) - Supported - - , Flag "fspec-constr-threshold" - (IntSuffix (\n -> upd (\dfs -> dfs{ specConstrThreshold = Just n }))) - Supported - , Flag "fno-spec-constr-threshold" - (NoArg (upd (\dfs -> dfs{ specConstrThreshold = Nothing }))) - Supported - , Flag "fspec-constr-count" - (IntSuffix (\n -> upd (\dfs -> dfs{ specConstrCount = Just n }))) - Supported - , Flag "fno-spec-constr-count" - (NoArg (upd (\dfs -> dfs{ specConstrCount = Nothing }))) - Supported - , Flag "fliberate-case-threshold" - (IntSuffix (\n -> upd (\dfs -> dfs{ liberateCaseThreshold = Just n }))) - Supported - , Flag "fno-liberate-case-threshold" - (NoArg (upd (\dfs -> dfs{ liberateCaseThreshold = Nothing }))) - Supported - - , Flag "frule-check" - (SepArg (\s -> upd (\dfs -> dfs{ ruleCheck = Just s }))) - Supported - , Flag "fcontext-stack" - (IntSuffix $ \n -> upd $ \dfs -> dfs{ ctxtStkDepth = n }) - Supported - - , Flag "fstrictness-before" - (IntSuffix (\n -> upd (\dfs -> dfs{ strictnessBefore = n : strictnessBefore dfs }))) - Supported + , Flag "fsimplifier-phases" (intSuffix (\n d -> d{ simplPhases = n })) + , Flag "fmax-simplifier-iterations" (intSuffix (\n d -> d{ maxSimplIterations = n })) + , Flag "fspec-constr-threshold" (intSuffix (\n d -> d{ specConstrThreshold = Just n })) + , Flag "fno-spec-constr-threshold" (noArg (\d -> d{ specConstrThreshold = Nothing })) + , Flag "fspec-constr-count" (intSuffix (\n d -> d{ specConstrCount = Just n })) + , Flag "fno-spec-constr-count" (noArg (\d -> d{ specConstrCount = Nothing })) + , Flag "fliberate-case-threshold" (intSuffix (\n d -> d{ liberateCaseThreshold = Just n })) + , Flag "fno-liberate-case-threshold" (noArg (\d -> d{ liberateCaseThreshold = Nothing })) + , Flag "frule-check" (SepArg (\s -> upd (\d -> d{ ruleCheck = Just s }))) + , Flag "fcontext-stack" (intSuffix (\n d -> d{ ctxtStkDepth = n })) + , Flag "fstrictness-before" (intSuffix (\n d -> d{ strictnessBefore = n : strictnessBefore d })) + , Flag "ffloat-lam-args" (intSuffix (\n d -> d{ floatLamArgs = Just n })) + , Flag "ffloat-all-lams" (intSuffix (\n d -> d{ floatLamArgs = Nothing })) ------ Profiling ---------------------------------------------------- -- XXX Should the -f* flags be deprecated? -- They don't seem to be documented - , Flag "fauto-sccs-on-all-toplevs" - (NoArg (setDynFlag Opt_AutoSccsOnAllToplevs)) - Supported - , Flag "auto-all" - (NoArg (setDynFlag Opt_AutoSccsOnAllToplevs)) - Supported - , Flag "no-auto-all" - (NoArg (unSetDynFlag Opt_AutoSccsOnAllToplevs)) - Supported - , Flag "fauto-sccs-on-exported-toplevs" - (NoArg (setDynFlag Opt_AutoSccsOnExportedToplevs)) - Supported - , Flag "auto" - (NoArg (setDynFlag Opt_AutoSccsOnExportedToplevs)) - Supported - , Flag "no-auto" - (NoArg (unSetDynFlag Opt_AutoSccsOnExportedToplevs)) - Supported - , Flag "fauto-sccs-on-individual-cafs" - (NoArg (setDynFlag Opt_AutoSccsOnIndividualCafs)) - Supported - , Flag "caf-all" - (NoArg (setDynFlag Opt_AutoSccsOnIndividualCafs)) - Supported - , Flag "no-caf-all" - (NoArg (unSetDynFlag Opt_AutoSccsOnIndividualCafs)) - Supported + , Flag "fauto-sccs-on-all-toplevs" (NoArg (setDynFlag Opt_AutoSccsOnAllToplevs)) + , Flag "auto-all" (NoArg (setDynFlag Opt_AutoSccsOnAllToplevs)) + , Flag "no-auto-all" (NoArg (unSetDynFlag Opt_AutoSccsOnAllToplevs)) + , Flag "fauto-sccs-on-exported-toplevs" (NoArg (setDynFlag Opt_AutoSccsOnExportedToplevs)) + , Flag "auto" (NoArg (setDynFlag Opt_AutoSccsOnExportedToplevs)) + , Flag "no-auto" (NoArg (unSetDynFlag Opt_AutoSccsOnExportedToplevs)) + , Flag "fauto-sccs-on-individual-cafs" (NoArg (setDynFlag Opt_AutoSccsOnIndividualCafs)) + , Flag "caf-all" (NoArg (setDynFlag Opt_AutoSccsOnIndividualCafs)) + , Flag "no-caf-all" (NoArg (unSetDynFlag Opt_AutoSccsOnIndividualCafs)) ------ DPH flags ---------------------------------------------------- - , Flag "fdph-seq" - (NoArg (setDPHBackend DPHSeq)) - Supported - , Flag "fdph-par" - (NoArg (setDPHBackend DPHPar)) - Supported - , Flag "fdph-this" - (NoArg (setDPHBackend DPHThis)) - Supported + , Flag "fdph-seq" (NoArg (setDPHBackend DPHSeq)) + , Flag "fdph-par" (NoArg (setDPHBackend DPHPar)) + , Flag "fdph-this" (NoArg (setDPHBackend DPHThis)) ------ Compiler flags ----------------------------------------------- - , Flag "fasm" (NoArg (setObjTarget HscAsm)) Supported - , Flag "fvia-c" (NoArg (setObjTarget HscC)) - (Deprecated "The -fvia-c flag will be removed in a future GHC release") - , Flag "fvia-C" (NoArg (setObjTarget HscC)) - (Deprecated "The -fvia-C flag will be removed in a future GHC release") - , Flag "fllvm" (NoArg (setObjTarget HscLlvm)) Supported + , Flag "fasm" (NoArg (setObjTarget HscAsm)) + , Flag "fvia-c" (NoArg (setObjTarget HscC >> + (addWarn "The -fvia-c flag will be removed in a future GHC release"))) + , Flag "fvia-C" (NoArg (setObjTarget HscC >> + (addWarn "The -fvia-C flag will be removed in a future GHC release"))) + , Flag "fllvm" (NoArg (setObjTarget HscLlvm)) , Flag "fno-code" (NoArg (do upd $ \d -> d{ ghcLink=NoLink } setTarget HscNothing)) - Supported - , Flag "fbyte-code" (NoArg (setTarget HscInterpreted)) Supported - , Flag "fobject-code" (NoArg (setTarget defaultHscTarget)) Supported - - , Flag "fglasgow-exts" (NoArg (mapM_ setDynFlag glasgowExtsFlags)) - Supported - , Flag "fno-glasgow-exts" (NoArg (mapM_ unSetDynFlag glasgowExtsFlags)) - Supported + , Flag "fbyte-code" (NoArg (setTarget HscInterpreted)) + , Flag "fobject-code" (NoArg (setTarget defaultHscTarget)) + , Flag "fglasgow-exts" (NoArg (enableGlasgowExts >> deprecate "Use individual extensions instead")) + , Flag "fno-glasgow-exts" (NoArg (disableGlasgowExts >> deprecate "Use individual extensions instead")) ] - ++ map (mkFlag True "f" setDynFlag ) fFlags - ++ map (mkFlag False "fno-" unSetDynFlag) fFlags - ++ map (mkFlag True "X" setDynFlag ) xFlags - ++ map (mkFlag False "XNo" unSetDynFlag) xFlags - -package_flags :: [Flag DynP] + ++ map (mkFlag turnOn "f" setDynFlag ) fFlags + ++ map (mkFlag turnOff "fno-" unSetDynFlag) fFlags + ++ map (mkFlag turnOn "f" setExtensionFlag ) fLangFlags + ++ map (mkFlag turnOff "fno-" unSetExtensionFlag) fLangFlags + ++ map (mkFlag turnOn "X" setExtensionFlag ) xFlags + ++ map (mkFlag turnOff "XNo" unSetExtensionFlag) xFlags + ++ map (mkFlag turnOn "X" setLanguage) languageFlags + +package_flags :: [Flag (CmdLineP DynFlags)] package_flags = [ ------- Packages ---------------------------------------------------- - Flag "package-conf" (HasArg extraPkgConf_) Supported + Flag "package-conf" (HasArg extraPkgConf_) , Flag "no-user-package-conf" (NoArg (unSetDynFlag Opt_ReadUserPackageConf)) - Supported - , Flag "package-name" (HasArg (upd . setPackageName)) Supported - , Flag "package-id" (HasArg exposePackageId) Supported - , Flag "package" (HasArg exposePackage) Supported - , Flag "hide-package" (HasArg hidePackage) Supported - , Flag "hide-all-packages" (NoArg (setDynFlag Opt_HideAllPackages)) - Supported - , Flag "ignore-package" (HasArg ignorePackage) - Supported - , Flag "syslib" (HasArg exposePackage) - (Deprecated "Use -package instead") + , Flag "package-name" (hasArg setPackageName) + , Flag "package-id" (HasArg exposePackageId) + , Flag "package" (HasArg exposePackage) + , Flag "hide-package" (HasArg hidePackage) + , Flag "hide-all-packages" (NoArg (setDynFlag Opt_HideAllPackages)) + , Flag "ignore-package" (HasArg ignorePackage) + , Flag "syslib" (HasArg (\s -> do { exposePackage s + ; deprecate "Use -package instead" })) ] -mkFlag :: Bool -- ^ True <=> it should be turned on +type TurnOnFlag = Bool -- True <=> we are turning the flag on + -- False <=> we are turning the flag off +turnOn :: TurnOnFlag; turnOn = True +turnOff :: TurnOnFlag; turnOff = False + +type FlagSpec flag + = ( String -- Flag in string form + , flag -- Flag in internal form + , TurnOnFlag -> DynP ()) -- Extra action to run when the flag is found + -- Typically, emit a warning or error + +mkFlag :: TurnOnFlag -- ^ True <=> it should be turned on -> String -- ^ The flag prefix - -> (DynFlag -> DynP ()) - -> (String, DynFlag, Bool -> Deprecated) - -> Flag DynP -mkFlag turnOn flagPrefix f (name, dynflag, deprecated) - = Flag (flagPrefix ++ name) (NoArg (f dynflag)) (deprecated turnOn) - -deprecatedForLanguage :: String -> Bool -> Deprecated -deprecatedForLanguage lang turn_on - = Deprecated ("use -X" ++ flag ++ " or pragma {-# LANGUAGE " ++ flag ++ " #-} instead") + -> (flag -> DynP ()) -- ^ What to do when the flag is found + -> FlagSpec flag -- ^ Specification of this particular flag + -> Flag (CmdLineP DynFlags) +mkFlag turn_on flagPrefix f (name, flag, extra_action) + = Flag (flagPrefix ++ name) (NoArg (f flag >> extra_action turn_on)) + +deprecatedForExtension :: String -> TurnOnFlag -> DynP () +deprecatedForExtension lang turn_on + = deprecate ("use -X" ++ flag ++ " or pragma {-# LANGUAGE " ++ flag ++ " #-} instead") where flag | turn_on = lang | otherwise = "No"++lang -useInstead :: String -> Bool -> Deprecated +useInstead :: String -> TurnOnFlag -> DynP () useInstead flag turn_on - = Deprecated ("Use -f" ++ no ++ flag ++ " instead") + = deprecate ("Use -f" ++ no ++ flag ++ " instead") where no = if turn_on then "" else "no-" +nop :: TurnOnFlag -> DynP () +nop _ = return () + -- | These @-f\@ flags can all be reversed with @-fno-\@ -fFlags :: [(String, DynFlag, Bool -> Deprecated)] +fFlags :: [FlagSpec DynFlag] fFlags = [ - ( "warn-dodgy-foreign-imports", Opt_WarnDodgyForeignImports, const Supported ), - ( "warn-dodgy-exports", Opt_WarnDodgyExports, const Supported ), - ( "warn-dodgy-imports", Opt_WarnDodgyImports, const Supported ), - ( "warn-duplicate-exports", Opt_WarnDuplicateExports, const Supported ), - ( "warn-hi-shadowing", Opt_WarnHiShadows, const Supported ), - ( "warn-implicit-prelude", Opt_WarnImplicitPrelude, const Supported ), - ( "warn-incomplete-patterns", Opt_WarnIncompletePatterns, const Supported ), - ( "warn-incomplete-record-updates", Opt_WarnIncompletePatternsRecUpd, const Supported ), - ( "warn-missing-fields", Opt_WarnMissingFields, const Supported ), - ( "warn-missing-methods", Opt_WarnMissingMethods, const Supported ), - ( "warn-missing-signatures", Opt_WarnMissingSigs, const Supported ), - ( "warn-name-shadowing", Opt_WarnNameShadowing, const Supported ), - ( "warn-overlapping-patterns", Opt_WarnOverlappingPatterns, const Supported ), - ( "warn-simple-patterns", Opt_WarnSimplePatterns, const Supported ), - ( "warn-type-defaults", Opt_WarnTypeDefaults, const Supported ), - ( "warn-monomorphism-restriction", Opt_WarnMonomorphism, const Supported ), - ( "warn-unused-binds", Opt_WarnUnusedBinds, const Supported ), - ( "warn-unused-imports", Opt_WarnUnusedImports, const Supported ), - ( "warn-unused-matches", Opt_WarnUnusedMatches, const Supported ), - ( "warn-warnings-deprecations", Opt_WarnWarningsDeprecations, const Supported ), - ( "warn-deprecations", Opt_WarnWarningsDeprecations, const Supported ), - ( "warn-deprecated-flags", Opt_WarnDeprecatedFlags, const Supported ), - ( "warn-orphans", Opt_WarnOrphans, const Supported ), - ( "warn-tabs", Opt_WarnTabs, const Supported ), - ( "warn-unrecognised-pragmas", Opt_WarnUnrecognisedPragmas, const Supported ), - ( "warn-lazy-unlifted-bindings", Opt_WarnLazyUnliftedBindings, - const $ Deprecated "lazy unlifted bindings will be an error in GHC 6.14, and this flag will no longer exist"), - ( "warn-unused-do-bind", Opt_WarnUnusedDoBind, const Supported ), - ( "warn-wrong-do-bind", Opt_WarnWrongDoBind, const Supported ), - ( "warn-alternative-layout-rule-transitional", Opt_WarnAlternativeLayoutRuleTransitional, const Supported ), - ( "print-explicit-foralls", Opt_PrintExplicitForalls, const Supported ), - ( "strictness", Opt_Strictness, const Supported ), - ( "specialise", Opt_Specialise, const Supported ), - ( "float-in", Opt_FloatIn, const Supported ), - ( "static-argument-transformation", Opt_StaticArgumentTransformation, const Supported ), - ( "full-laziness", Opt_FullLaziness, const Supported ), - ( "liberate-case", Opt_LiberateCase, const Supported ), - ( "spec-constr", Opt_SpecConstr, const Supported ), - ( "cse", Opt_CSE, const Supported ), - ( "ignore-interface-pragmas", Opt_IgnoreInterfacePragmas, const Supported ), - ( "omit-interface-pragmas", Opt_OmitInterfacePragmas, const Supported ), - ( "expose-all-unfoldings", Opt_ExposeAllUnfoldings, const Supported ), - ( "do-lambda-eta-expansion", Opt_DoLambdaEtaExpansion, const Supported ), - ( "ignore-asserts", Opt_IgnoreAsserts, const Supported ), - ( "do-eta-reduction", Opt_DoEtaReduction, const Supported ), - ( "case-merge", Opt_CaseMerge, const Supported ), - ( "unbox-strict-fields", Opt_UnboxStrictFields, const Supported ), - ( "method-sharing", Opt_MethodSharing, const Supported ), - ( "dicts-cheap", Opt_DictsCheap, const Supported ), - ( "excess-precision", Opt_ExcessPrecision, const Supported ), - ( "eager-blackholing", Opt_EagerBlackHoling, const Supported ), - ( "asm-mangling", Opt_DoAsmMangling, const Supported ), - ( "print-bind-result", Opt_PrintBindResult, const Supported ), - ( "force-recomp", Opt_ForceRecomp, const Supported ), - ( "hpc-no-auto", Opt_Hpc_No_Auto, const Supported ), + ( "warn-dodgy-foreign-imports", Opt_WarnDodgyForeignImports, nop ), + ( "warn-dodgy-exports", Opt_WarnDodgyExports, nop ), + ( "warn-dodgy-imports", Opt_WarnDodgyImports, nop ), + ( "warn-duplicate-exports", Opt_WarnDuplicateExports, nop ), + ( "warn-hi-shadowing", Opt_WarnHiShadows, nop ), + ( "warn-implicit-prelude", Opt_WarnImplicitPrelude, nop ), + ( "warn-incomplete-patterns", Opt_WarnIncompletePatterns, nop ), + ( "warn-incomplete-record-updates", Opt_WarnIncompletePatternsRecUpd, nop ), + ( "warn-missing-fields", Opt_WarnMissingFields, nop ), + ( "warn-missing-import-lists", Opt_WarnMissingImportList, nop ), + ( "warn-missing-methods", Opt_WarnMissingMethods, nop ), + ( "warn-missing-signatures", Opt_WarnMissingSigs, nop ), + ( "warn-missing-local-sigs", Opt_WarnMissingLocalSigs, nop ), + ( "warn-name-shadowing", Opt_WarnNameShadowing, nop ), + ( "warn-overlapping-patterns", Opt_WarnOverlappingPatterns, nop ), + ( "warn-type-defaults", Opt_WarnTypeDefaults, nop ), + ( "warn-monomorphism-restriction", Opt_WarnMonomorphism, nop ), + ( "warn-unused-binds", Opt_WarnUnusedBinds, nop ), + ( "warn-unused-imports", Opt_WarnUnusedImports, nop ), + ( "warn-unused-matches", Opt_WarnUnusedMatches, nop ), + ( "warn-warnings-deprecations", Opt_WarnWarningsDeprecations, nop ), + ( "warn-deprecations", Opt_WarnWarningsDeprecations, nop ), + ( "warn-deprecated-flags", Opt_WarnDeprecatedFlags, nop ), + ( "warn-orphans", Opt_WarnOrphans, nop ), + ( "warn-identities", Opt_WarnIdentities, nop ), + ( "warn-auto-orphans", Opt_WarnAutoOrphans, nop ), + ( "warn-tabs", Opt_WarnTabs, nop ), + ( "warn-unrecognised-pragmas", Opt_WarnUnrecognisedPragmas, nop ), + ( "warn-lazy-unlifted-bindings", Opt_WarnLazyUnliftedBindings, nop), + ( "warn-unused-do-bind", Opt_WarnUnusedDoBind, nop ), + ( "warn-wrong-do-bind", Opt_WarnWrongDoBind, nop ), + ( "warn-alternative-layout-rule-transitional", Opt_WarnAlternativeLayoutRuleTransitional, nop ), + ( "print-explicit-foralls", Opt_PrintExplicitForalls, nop ), + ( "strictness", Opt_Strictness, nop ), + ( "specialise", Opt_Specialise, nop ), + ( "float-in", Opt_FloatIn, nop ), + ( "static-argument-transformation", Opt_StaticArgumentTransformation, nop ), + ( "full-laziness", Opt_FullLaziness, nop ), + ( "liberate-case", Opt_LiberateCase, nop ), + ( "spec-constr", Opt_SpecConstr, nop ), + ( "cse", Opt_CSE, nop ), + ( "ignore-interface-pragmas", Opt_IgnoreInterfacePragmas, nop ), + ( "omit-interface-pragmas", Opt_OmitInterfacePragmas, nop ), + ( "expose-all-unfoldings", Opt_ExposeAllUnfoldings, nop ), + ( "do-lambda-eta-expansion", Opt_DoLambdaEtaExpansion, nop ), + ( "ignore-asserts", Opt_IgnoreAsserts, nop ), + ( "do-eta-reduction", Opt_DoEtaReduction, nop ), + ( "case-merge", Opt_CaseMerge, nop ), + ( "unbox-strict-fields", Opt_UnboxStrictFields, nop ), + ( "method-sharing", Opt_MethodSharing, + \_ -> deprecate "doesn't do anything any more"), + -- Remove altogether in GHC 7.2 + ( "dicts-cheap", Opt_DictsCheap, nop ), + ( "excess-precision", Opt_ExcessPrecision, nop ), + ( "eager-blackholing", Opt_EagerBlackHoling, nop ), + ( "asm-mangling", Opt_DoAsmMangling, nop ), + ( "print-bind-result", Opt_PrintBindResult, nop ), + ( "force-recomp", Opt_ForceRecomp, nop ), + ( "hpc-no-auto", Opt_Hpc_No_Auto, nop ), ( "rewrite-rules", Opt_EnableRewriteRules, useInstead "enable-rewrite-rules" ), - ( "enable-rewrite-rules", Opt_EnableRewriteRules, const Supported ), - ( "break-on-exception", Opt_BreakOnException, const Supported ), - ( "break-on-error", Opt_BreakOnError, const Supported ), - ( "print-evld-with-show", Opt_PrintEvldWithShow, const Supported ), - ( "print-bind-contents", Opt_PrintBindContents, const Supported ), - ( "run-cps", Opt_RunCPS, const Supported ), - ( "run-cpsz", Opt_RunCPSZ, const Supported ), - ( "new-codegen", Opt_TryNewCodeGen, const Supported ), - ( "convert-to-zipper-and-back", Opt_ConvertToZipCfgAndBack, const Supported ), - ( "vectorise", Opt_Vectorise, const Supported ), - ( "regs-graph", Opt_RegsGraph, const Supported ), - ( "regs-iterative", Opt_RegsIterative, const Supported ), + ( "enable-rewrite-rules", Opt_EnableRewriteRules, nop ), + ( "break-on-exception", Opt_BreakOnException, nop ), + ( "break-on-error", Opt_BreakOnError, nop ), + ( "print-evld-with-show", Opt_PrintEvldWithShow, nop ), + ( "print-bind-contents", Opt_PrintBindContents, nop ), + ( "run-cps", Opt_RunCPS, nop ), + ( "run-cpsz", Opt_RunCPSZ, nop ), + ( "new-codegen", Opt_TryNewCodeGen, nop ), + ( "convert-to-zipper-and-back", Opt_ConvertToZipCfgAndBack, nop ), + ( "vectorise", Opt_Vectorise, nop ), + ( "regs-graph", Opt_RegsGraph, nop ), + ( "regs-iterative", Opt_RegsIterative, nop ), + ( "gen-manifest", Opt_GenManifest, nop ), + ( "embed-manifest", Opt_EmbedManifest, nop ), + ( "ext-core", Opt_EmitExternalCore, nop ), + ( "shared-implib", Opt_SharedImplib, nop ), + ( "ghci-sandbox", Opt_GhciSandbox, nop ), + ( "building-cabal-package", Opt_BuildingCabalPackage, nop ), + ( "implicit-import-qualified", Opt_ImplicitImportQualified, nop ) + ] + +-- | These @-f\@ flags can all be reversed with @-fno-\@ +fLangFlags :: [FlagSpec ExtensionFlag] +fLangFlags = [ ( "th", Opt_TemplateHaskell, - deprecatedForLanguage "TemplateHaskell" ), + deprecatedForExtension "TemplateHaskell" >> checkTemplateHaskellOk ), ( "fi", Opt_ForeignFunctionInterface, - deprecatedForLanguage "ForeignFunctionInterface" ), + deprecatedForExtension "ForeignFunctionInterface" ), ( "ffi", Opt_ForeignFunctionInterface, - deprecatedForLanguage "ForeignFunctionInterface" ), + deprecatedForExtension "ForeignFunctionInterface" ), ( "arrows", Opt_Arrows, - deprecatedForLanguage "Arrows" ), + deprecatedForExtension "Arrows" ), ( "generics", Opt_Generics, - deprecatedForLanguage "Generics" ), + deprecatedForExtension "Generics" ), ( "implicit-prelude", Opt_ImplicitPrelude, - deprecatedForLanguage "ImplicitPrelude" ), + deprecatedForExtension "ImplicitPrelude" ), ( "bang-patterns", Opt_BangPatterns, - deprecatedForLanguage "BangPatterns" ), + deprecatedForExtension "BangPatterns" ), ( "monomorphism-restriction", Opt_MonomorphismRestriction, - deprecatedForLanguage "MonomorphismRestriction" ), + deprecatedForExtension "MonomorphismRestriction" ), ( "mono-pat-binds", Opt_MonoPatBinds, - deprecatedForLanguage "MonoPatBinds" ), + deprecatedForExtension "MonoPatBinds" ), ( "extended-default-rules", Opt_ExtendedDefaultRules, - deprecatedForLanguage "ExtendedDefaultRules" ), + deprecatedForExtension "ExtendedDefaultRules" ), ( "implicit-params", Opt_ImplicitParams, - deprecatedForLanguage "ImplicitParams" ), + deprecatedForExtension "ImplicitParams" ), ( "scoped-type-variables", Opt_ScopedTypeVariables, - deprecatedForLanguage "ScopedTypeVariables" ), + deprecatedForExtension "ScopedTypeVariables" ), ( "parr", Opt_PArr, - deprecatedForLanguage "PArr" ), + deprecatedForExtension "PArr" ), ( "allow-overlapping-instances", Opt_OverlappingInstances, - deprecatedForLanguage "OverlappingInstances" ), + deprecatedForExtension "OverlappingInstances" ), ( "allow-undecidable-instances", Opt_UndecidableInstances, - deprecatedForLanguage "UndecidableInstances" ), + deprecatedForExtension "UndecidableInstances" ), ( "allow-incoherent-instances", Opt_IncoherentInstances, - deprecatedForLanguage "IncoherentInstances" ), - ( "gen-manifest", Opt_GenManifest, const Supported ), - ( "embed-manifest", Opt_EmbedManifest, const Supported ), - ( "ext-core", Opt_EmitExternalCore, const Supported ), - ( "shared-implib", Opt_SharedImplib, const Supported ), - ( "building-cabal-package", Opt_BuildingCabalPackage, const Supported ), - ( "implicit-import-qualified", Opt_ImplicitImportQualified, const Supported ) + deprecatedForExtension "IncoherentInstances" ) ] supportedLanguages :: [String] -supportedLanguages = [ name' | (name, _, _) <- xFlags, name' <- [name, "No" ++ name] ] +supportedLanguages = [ name | (name, _, _) <- languageFlags ] + +supportedExtensions :: [String] +supportedExtensions = [ name' | (name, _, _) <- xFlags, name' <- [name, "No" ++ name] ] --- This may contain duplicates -languageOptions :: [DynFlag] -languageOptions = [ dynFlag | (_, dynFlag, _) <- xFlags ] +supportedLanguagesAndExtensions :: [String] +supportedLanguagesAndExtensions = supportedLanguages ++ supportedExtensions + +-- | These -X flags cannot be reversed with -XNo +languageFlags :: [FlagSpec Language] +languageFlags = [ + ( "Haskell98", Haskell98, nop ), + ( "Haskell2010", Haskell2010, nop ) + ] -- | These -X flags can all be reversed with -XNo -xFlags :: [(String, DynFlag, Bool -> Deprecated)] +xFlags :: [FlagSpec ExtensionFlag] xFlags = [ - ( "CPP", Opt_Cpp, const Supported ), - ( "PostfixOperators", Opt_PostfixOperators, const Supported ), - ( "TupleSections", Opt_TupleSections, const Supported ), - ( "PatternGuards", Opt_PatternGuards, const Supported ), - ( "UnicodeSyntax", Opt_UnicodeSyntax, const Supported ), - ( "MagicHash", Opt_MagicHash, const Supported ), - ( "PolymorphicComponents", Opt_PolymorphicComponents, const Supported ), - ( "ExistentialQuantification", Opt_ExistentialQuantification, const Supported ), - ( "KindSignatures", Opt_KindSignatures, const Supported ), - ( "EmptyDataDecls", Opt_EmptyDataDecls, const Supported ), - ( "ParallelListComp", Opt_ParallelListComp, const Supported ), - ( "TransformListComp", Opt_TransformListComp, const Supported ), - ( "ForeignFunctionInterface", Opt_ForeignFunctionInterface, const Supported ), - ( "UnliftedFFITypes", Opt_UnliftedFFITypes, const Supported ), - ( "GHCForeignImportPrim", Opt_GHCForeignImportPrim, const Supported ), - ( "LiberalTypeSynonyms", Opt_LiberalTypeSynonyms, const Supported ), - ( "Rank2Types", Opt_Rank2Types, const Supported ), - ( "RankNTypes", Opt_RankNTypes, const Supported ), - ( "ImpredicativeTypes", Opt_ImpredicativeTypes, - const $ Deprecated "impredicative polymorphism will be simplified or removed in GHC 6.14" ), - ( "TypeOperators", Opt_TypeOperators, const Supported ), + ( "CPP", Opt_Cpp, nop ), + ( "PostfixOperators", Opt_PostfixOperators, nop ), + ( "TupleSections", Opt_TupleSections, nop ), + ( "PatternGuards", Opt_PatternGuards, nop ), + ( "UnicodeSyntax", Opt_UnicodeSyntax, nop ), + ( "MagicHash", Opt_MagicHash, nop ), + ( "PolymorphicComponents", Opt_PolymorphicComponents, nop ), + ( "ExistentialQuantification", Opt_ExistentialQuantification, nop ), + ( "KindSignatures", Opt_KindSignatures, nop ), + ( "EmptyDataDecls", Opt_EmptyDataDecls, nop ), + ( "ParallelListComp", Opt_ParallelListComp, nop ), + ( "TransformListComp", Opt_TransformListComp, nop ), + ( "ForeignFunctionInterface", Opt_ForeignFunctionInterface, nop ), + ( "UnliftedFFITypes", Opt_UnliftedFFITypes, nop ), + ( "GHCForeignImportPrim", Opt_GHCForeignImportPrim, nop ), + ( "LiberalTypeSynonyms", Opt_LiberalTypeSynonyms, nop ), + ( "Rank2Types", Opt_Rank2Types, nop ), + ( "RankNTypes", Opt_RankNTypes, nop ), + ( "ImpredicativeTypes", Opt_ImpredicativeTypes, nop), + ( "TypeOperators", Opt_TypeOperators, nop ), ( "RecursiveDo", Opt_RecursiveDo, - deprecatedForLanguage "DoRec"), - ( "DoRec", Opt_DoRec, const Supported ), - ( "Arrows", Opt_Arrows, const Supported ), - ( "PArr", Opt_PArr, const Supported ), - ( "TemplateHaskell", Opt_TemplateHaskell, const Supported ), - ( "QuasiQuotes", Opt_QuasiQuotes, const Supported ), - ( "Generics", Opt_Generics, const Supported ), - -- On by default: - ( "ImplicitPrelude", Opt_ImplicitPrelude, const Supported ), - ( "RecordWildCards", Opt_RecordWildCards, const Supported ), - ( "NamedFieldPuns", Opt_RecordPuns, const Supported ), + deprecatedForExtension "DoRec"), + ( "DoRec", Opt_DoRec, nop ), + ( "Arrows", Opt_Arrows, nop ), + ( "PArr", Opt_PArr, nop ), + ( "TemplateHaskell", Opt_TemplateHaskell, checkTemplateHaskellOk ), + ( "QuasiQuotes", Opt_QuasiQuotes, nop ), + ( "Generics", Opt_Generics, nop ), + ( "ImplicitPrelude", Opt_ImplicitPrelude, nop ), + ( "RecordWildCards", Opt_RecordWildCards, nop ), + ( "NamedFieldPuns", Opt_RecordPuns, nop ), ( "RecordPuns", Opt_RecordPuns, - deprecatedForLanguage "NamedFieldPuns" ), - ( "DisambiguateRecordFields", Opt_DisambiguateRecordFields, const Supported ), - ( "OverloadedStrings", Opt_OverloadedStrings, const Supported ), - ( "GADTs", Opt_GADTs, const Supported ), - ( "ViewPatterns", Opt_ViewPatterns, const Supported ), - ( "TypeFamilies", Opt_TypeFamilies, const Supported ), - ( "BangPatterns", Opt_BangPatterns, const Supported ), - -- On by default: - ( "MonomorphismRestriction", Opt_MonomorphismRestriction, const Supported ), - -- On by default: - ( "NPlusKPatterns", Opt_NPlusKPatterns, const Supported ), - -- On by default (which is not strictly H98): - ( "MonoPatBinds", Opt_MonoPatBinds, const Supported ), - ( "ExplicitForAll", Opt_ExplicitForAll, const Supported ), - ( "AlternativeLayoutRule", Opt_AlternativeLayoutRule, const Supported ), - ( "AlternativeLayoutRuleTransitional",Opt_AlternativeLayoutRuleTransitional, const Supported ), - ( "MonoLocalBinds", Opt_MonoLocalBinds, const Supported ), - ( "RelaxedPolyRec", Opt_RelaxedPolyRec, const Supported ), - ( "ExtendedDefaultRules", Opt_ExtendedDefaultRules, const Supported ), - ( "ImplicitParams", Opt_ImplicitParams, const Supported ), - ( "ScopedTypeVariables", Opt_ScopedTypeVariables, const Supported ), + deprecatedForExtension "NamedFieldPuns" ), + ( "DisambiguateRecordFields", Opt_DisambiguateRecordFields, nop ), + ( "OverloadedStrings", Opt_OverloadedStrings, nop ), + ( "GADTs", Opt_GADTs, nop ), + ( "ViewPatterns", Opt_ViewPatterns, nop ), + ( "TypeFamilies", Opt_TypeFamilies, nop ), + ( "BangPatterns", Opt_BangPatterns, nop ), + ( "MonomorphismRestriction", Opt_MonomorphismRestriction, nop ), + ( "NPlusKPatterns", Opt_NPlusKPatterns, nop ), + ( "DoAndIfThenElse", Opt_DoAndIfThenElse, nop ), + ( "RebindableSyntax", Opt_RebindableSyntax, nop ), + ( "MonoPatBinds", Opt_MonoPatBinds, nop ), + ( "ExplicitForAll", Opt_ExplicitForAll, nop ), + ( "AlternativeLayoutRule", Opt_AlternativeLayoutRule, nop ), + ( "AlternativeLayoutRuleTransitional",Opt_AlternativeLayoutRuleTransitional, nop ), + ( "DatatypeContexts", Opt_DatatypeContexts, nop ), + ( "NondecreasingIndentation", Opt_NondecreasingIndentation, nop ), + ( "RelaxedLayout", Opt_RelaxedLayout, nop ), + ( "MonoLocalBinds", Opt_MonoLocalBinds, nop ), + ( "RelaxedPolyRec", Opt_RelaxedPolyRec, + \ turn_on -> if not turn_on + then deprecate "You can't turn off RelaxedPolyRec any more" + else return () ), + ( "ExtendedDefaultRules", Opt_ExtendedDefaultRules, nop ), + ( "ImplicitParams", Opt_ImplicitParams, nop ), + ( "ScopedTypeVariables", Opt_ScopedTypeVariables, nop ), ( "PatternSignatures", Opt_ScopedTypeVariables, - deprecatedForLanguage "ScopedTypeVariables" ), - - ( "UnboxedTuples", Opt_UnboxedTuples, const Supported ), - ( "StandaloneDeriving", Opt_StandaloneDeriving, const Supported ), - ( "DeriveDataTypeable", Opt_DeriveDataTypeable, const Supported ), - ( "DeriveFunctor", Opt_DeriveFunctor, const Supported ), - ( "DeriveTraversable", Opt_DeriveTraversable, const Supported ), - ( "DeriveFoldable", Opt_DeriveFoldable, const Supported ), - ( "TypeSynonymInstances", Opt_TypeSynonymInstances, const Supported ), - ( "FlexibleContexts", Opt_FlexibleContexts, const Supported ), - ( "FlexibleInstances", Opt_FlexibleInstances, const Supported ), - ( "ConstrainedClassMethods", Opt_ConstrainedClassMethods, const Supported ), - ( "MultiParamTypeClasses", Opt_MultiParamTypeClasses, const Supported ), - ( "FunctionalDependencies", Opt_FunctionalDependencies, const Supported ), - ( "GeneralizedNewtypeDeriving", Opt_GeneralizedNewtypeDeriving, const Supported ), - ( "OverlappingInstances", Opt_OverlappingInstances, const Supported ), - ( "UndecidableInstances", Opt_UndecidableInstances, const Supported ), - ( "IncoherentInstances", Opt_IncoherentInstances, const Supported ), - ( "PackageImports", Opt_PackageImports, const Supported ), - ( "NewQualifiedOperators", Opt_NewQualifiedOperators, const Supported ) + deprecatedForExtension "ScopedTypeVariables" ), + + ( "UnboxedTuples", Opt_UnboxedTuples, nop ), + ( "StandaloneDeriving", Opt_StandaloneDeriving, nop ), + ( "DeriveDataTypeable", Opt_DeriveDataTypeable, nop ), + ( "DeriveFunctor", Opt_DeriveFunctor, nop ), + ( "DeriveTraversable", Opt_DeriveTraversable, nop ), + ( "DeriveFoldable", Opt_DeriveFoldable, nop ), + ( "TypeSynonymInstances", Opt_TypeSynonymInstances, nop ), + ( "FlexibleContexts", Opt_FlexibleContexts, nop ), + ( "FlexibleInstances", Opt_FlexibleInstances, nop ), + ( "ConstrainedClassMethods", Opt_ConstrainedClassMethods, nop ), + ( "MultiParamTypeClasses", Opt_MultiParamTypeClasses, nop ), + ( "FunctionalDependencies", Opt_FunctionalDependencies, nop ), + ( "GeneralizedNewtypeDeriving", Opt_GeneralizedNewtypeDeriving, nop ), + ( "OverlappingInstances", Opt_OverlappingInstances, nop ), + ( "UndecidableInstances", Opt_UndecidableInstances, nop ), + ( "IncoherentInstances", Opt_IncoherentInstances, nop ), + ( "PackageImports", Opt_PackageImports, nop ), + ( "NewQualifiedOperators", Opt_NewQualifiedOperators, + \_ -> deprecate "The new qualified operator syntax was rejected by Haskell'" ) ] -impliedFlags :: [(DynFlag, DynFlag)] +defaultFlags :: [DynFlag] +defaultFlags + = [ Opt_AutoLinkPackages, + Opt_ReadUserPackageConf, + + Opt_DoAsmMangling, + + Opt_SharedImplib, + + Opt_GenManifest, + Opt_EmbedManifest, + Opt_PrintBindContents, + Opt_GhciSandbox + ] + + ++ [f | (ns,f) <- optLevelFlags, 0 `elem` ns] + -- The default -O0 options + + ++ standardWarnings + +impliedFlags :: [(ExtensionFlag, TurnOnFlag, ExtensionFlag)] impliedFlags - = [ (Opt_RankNTypes, Opt_ExplicitForAll) - , (Opt_Rank2Types, Opt_ExplicitForAll) - , (Opt_ScopedTypeVariables, Opt_ExplicitForAll) - , (Opt_LiberalTypeSynonyms, Opt_ExplicitForAll) - , (Opt_ExistentialQuantification, Opt_ExplicitForAll) - , (Opt_PolymorphicComponents, Opt_ExplicitForAll) - - , (Opt_GADTs, Opt_RelaxedPolyRec) -- We want type-sig variables to - -- be completely rigid for GADTs - - , (Opt_TypeFamilies, Opt_RelaxedPolyRec) -- Trac #2944 gives a nice example - , (Opt_TypeFamilies, Opt_KindSignatures) -- Type families use kind signatures + = [ (Opt_RankNTypes, turnOn, Opt_ExplicitForAll) + , (Opt_Rank2Types, turnOn, Opt_ExplicitForAll) + , (Opt_ScopedTypeVariables, turnOn, Opt_ExplicitForAll) + , (Opt_LiberalTypeSynonyms, turnOn, Opt_ExplicitForAll) + , (Opt_ExistentialQuantification, turnOn, Opt_ExplicitForAll) + , (Opt_PolymorphicComponents, turnOn, Opt_ExplicitForAll) + + , (Opt_RebindableSyntax, turnOff, Opt_ImplicitPrelude) -- NB: turn off! + + , (Opt_GADTs, turnOn, Opt_MonoLocalBinds) + , (Opt_TypeFamilies, turnOn, Opt_MonoLocalBinds) + + , (Opt_TypeFamilies, turnOn, Opt_KindSignatures) -- Type families use kind signatures -- all over the place - , (Opt_ScopedTypeVariables, Opt_RelaxedPolyRec) -- Ditto for scoped type variables; see - -- Note [Scoped tyvars] in TcBinds - , (Opt_ImpredicativeTypes, Opt_RankNTypes) + , (Opt_ImpredicativeTypes, turnOn, Opt_RankNTypes) -- Record wild-cards implies field disambiguation -- Otherwise if you write (C {..}) you may well get -- stuff like " 'a' not in scope ", which is a bit silly -- if the compiler has just filled in field 'a' of constructor 'C' - , (Opt_RecordWildCards, Opt_DisambiguateRecordFields) + , (Opt_RecordWildCards, turnOn, Opt_DisambiguateRecordFields) ] -glasgowExtsFlags :: [DynFlag] +optLevelFlags :: [([Int], DynFlag)] +optLevelFlags + = [ ([0], Opt_IgnoreInterfacePragmas) + , ([0], Opt_OmitInterfacePragmas) + + , ([1,2], Opt_IgnoreAsserts) + , ([1,2], Opt_EnableRewriteRules) -- Off for -O0; see Note [Scoping for Builtin rules] + -- in PrelRules + , ([1,2], Opt_DoEtaReduction) + , ([1,2], Opt_CaseMerge) + , ([1,2], Opt_Strictness) + , ([1,2], Opt_CSE) + , ([1,2], Opt_FullLaziness) + , ([1,2], Opt_Specialise) + , ([1,2], Opt_FloatIn) + + , ([2], Opt_LiberateCase) + , ([2], Opt_SpecConstr) + , ([2], Opt_RegsGraph) + +-- , ([2], Opt_StaticArgumentTransformation) +-- Max writes: I think it's probably best not to enable SAT with -O2 for the +-- 6.10 release. The version of SAT in HEAD at the moment doesn't incorporate +-- several improvements to the heuristics, and I'm concerned that without +-- those changes SAT will interfere with some attempts to write "high +-- performance Haskell", as we saw in some posts on Haskell-Cafe earlier +-- this year. In particular, the version in HEAD lacks the tail call +-- criterion, so many things that look like reasonable loops will be +-- turned into functions with extra (unneccesary) thunk creation. + + , ([0,1,2], Opt_DoLambdaEtaExpansion) + -- This one is important for a tiresome reason: + -- we want to make sure that the bindings for data + -- constructors are eta-expanded. This is probably + -- a good thing anyway, but it seems fragile. + ] + +-- ----------------------------------------------------------------------------- +-- Standard sets of warning options + +standardWarnings :: [DynFlag] +standardWarnings + = [ Opt_WarnWarningsDeprecations, + Opt_WarnDeprecatedFlags, + Opt_WarnUnrecognisedPragmas, + Opt_WarnOverlappingPatterns, + Opt_WarnMissingFields, + Opt_WarnMissingMethods, + Opt_WarnDuplicateExports, + Opt_WarnLazyUnliftedBindings, + Opt_WarnDodgyForeignImports, + Opt_WarnWrongDoBind, + Opt_WarnAlternativeLayoutRuleTransitional + ] + +minusWOpts :: [DynFlag] +minusWOpts + = standardWarnings ++ + [ Opt_WarnUnusedBinds, + Opt_WarnUnusedMatches, + Opt_WarnUnusedImports, + Opt_WarnIncompletePatterns, + Opt_WarnDodgyExports, + Opt_WarnDodgyImports + ] + +minusWallOpts :: [DynFlag] +minusWallOpts + = minusWOpts ++ + [ Opt_WarnTypeDefaults, + Opt_WarnNameShadowing, + Opt_WarnMissingSigs, + Opt_WarnHiShadows, + Opt_WarnOrphans, + Opt_WarnUnusedDoBind, + Opt_WarnIdentities + ] + +-- minuswRemovesOpts should be every warning option +minuswRemovesOpts :: [DynFlag] +minuswRemovesOpts + = minusWallOpts ++ + [Opt_WarnImplicitPrelude, + Opt_WarnIncompletePatternsRecUpd, + Opt_WarnMonomorphism, + Opt_WarnUnrecognisedPragmas, + Opt_WarnAutoOrphans, + Opt_WarnTabs + ] + +enableGlasgowExts :: DynP () +enableGlasgowExts = do setDynFlag Opt_PrintExplicitForalls + mapM_ setExtensionFlag glasgowExtsFlags + +disableGlasgowExts :: DynP () +disableGlasgowExts = do unSetDynFlag Opt_PrintExplicitForalls + mapM_ unSetExtensionFlag glasgowExtsFlags + +glasgowExtsFlags :: [ExtensionFlag] glasgowExtsFlags = [ - Opt_PrintExplicitForalls - , Opt_ForeignFunctionInterface + Opt_ForeignFunctionInterface , Opt_UnliftedFFITypes - , Opt_GADTs , Opt_ImplicitParams , Opt_ScopedTypeVariables , Opt_UnboxedTuples @@ -1744,99 +1805,87 @@ glasgowExtsFlags = [ , Opt_ParallelListComp , Opt_EmptyDataDecls , Opt_KindSignatures - , Opt_GeneralizedNewtypeDeriving - , Opt_TypeFamilies ] - --- ----------------------------------------------------------------------------- --- Parsing the dynamic flags. + , Opt_GeneralizedNewtypeDeriving ] + +#ifdef GHCI +-- Consult the RTS to find whether GHC itself has been built profiled +-- If so, you can't use Template Haskell +foreign import ccall unsafe "rts_isProfiled" rtsIsProfiledIO :: IO CInt + +rtsIsProfiled :: Bool +rtsIsProfiled = unsafePerformIO rtsIsProfiledIO /= 0 + +checkTemplateHaskellOk :: Bool -> DynP () +checkTemplateHaskellOk turn_on + | turn_on && rtsIsProfiled + = addErr "You can't use Template Haskell with a profiled compiler" + | otherwise + = return () +#else +-- In stage 1 we don't know that the RTS has rts_isProfiled, +-- so we simply say "ok". It doesn't matter because TH isn't +-- available in stage 1 anyway. +checkTemplateHaskellOk turn_on = return () +#endif --- | Parse dynamic flags from a list of command line arguments. Returns the --- the parsed 'DynFlags', the left-over arguments, and a list of warnings. --- Throws a 'UsageError' if errors occurred during parsing (such as unknown --- flags or missing arguments). -parseDynamicFlags :: Monad m => - DynFlags -> [Located String] - -> m (DynFlags, [Located String], [Located String]) - -- ^ Updated 'DynFlags', left-over arguments, and - -- list of warnings. -parseDynamicFlags dflags args = parseDynamicFlags_ dflags args True +{- ********************************************************************** +%* * + DynFlags constructors +%* * +%********************************************************************* -} --- | Like 'parseDynamicFlags' but does not allow the package flags (-package, --- -hide-package, -ignore-package, -hide-all-packages, -package-conf). -parseDynamicNoPackageFlags :: Monad m => - DynFlags -> [Located String] - -> m (DynFlags, [Located String], [Located String]) - -- ^ Updated 'DynFlags', left-over arguments, and - -- list of warnings. -parseDynamicNoPackageFlags dflags args = parseDynamicFlags_ dflags args False +type DynP = EwM (CmdLineP DynFlags) -parseDynamicFlags_ :: Monad m => - DynFlags -> [Located String] -> Bool - -> m (DynFlags, [Located String], [Located String]) -parseDynamicFlags_ dflags0 args pkg_flags = do - -- XXX Legacy support code - -- We used to accept things like - -- optdep-f -optdepdepend - -- optdep-f -optdep depend - -- optdep -f -optdepdepend - -- optdep -f -optdep depend - -- but the spaces trip up proper argument handling. So get rid of them. - let f (L p "-optdep" : L _ x : xs) = (L p ("-optdep" ++ x)) : f xs - f (x : xs) = x : f xs - f xs = xs - args' = f args +upd :: (DynFlags -> DynFlags) -> DynP () +upd f = liftEwM (do { dfs <- getCmdLineState + ; putCmdLineState $! (f dfs) }) - -- Note: -ignore-package (package_flags) must precede -i* (dynamic_flags) - flag_spec | pkg_flags = package_flags ++ dynamic_flags - | otherwise = dynamic_flags +--------------- Constructor functions for OptKind ----------------- +noArg :: (DynFlags -> DynFlags) -> OptKind (CmdLineP DynFlags) +noArg fn = NoArg (upd fn) - let ((leftover, errs, warns), dflags1) - = runCmdLine (processArgs flag_spec args') dflags0 - when (not (null errs)) $ ghcError $ errorsToGhcException errs +noArgDF :: (DynFlags -> DynFlags) -> String -> OptKind (CmdLineP DynFlags) +noArgDF fn deprec = NoArg (upd fn >> deprecate deprec) - -- Cannot use -fPIC with registerised -fvia-C, because the mangler - -- isn't up to the job. We know that if hscTarget == HscC, then the - -- user has explicitly used -fvia-C, because -fasm is the default, - -- unless there is no NCG on this platform. The latter case is - -- checked when the -fPIC flag is parsed. - -- - let (pic_warns, dflags2) = - if opt_PIC && hscTarget dflags1 == HscC && cGhcUnregisterised == "NO" - then ([L noSrcSpan $ "Warning: -fvia-C is incompatible with -fPIC; ignoring -fvia-C"], - dflags1{ hscTarget = HscAsm }) - else ([], dflags1) +hasArg :: (String -> DynFlags -> DynFlags) -> OptKind (CmdLineP DynFlags) +hasArg fn = HasArg (upd . fn) - return (dflags2, leftover, pic_warns ++ warns) +hasArgDF :: (String -> DynFlags -> DynFlags) -> String -> OptKind (CmdLineP DynFlags) +hasArgDF fn deprec = HasArg (\s -> do { upd (fn s) + ; deprecate deprec }) -type DynP = CmdLineP DynFlags +intSuffix :: (Int -> DynFlags -> DynFlags) -> OptKind (CmdLineP DynFlags) +intSuffix fn = IntSuffix (\n -> upd (fn n)) -upd :: (DynFlags -> DynFlags) -> DynP () -upd f = do - dfs <- getCmdLineState - putCmdLineState $! (f dfs) +setDumpFlag :: DynFlag -> OptKind (CmdLineP DynFlags) +setDumpFlag dump_flag = NoArg (setDumpFlag' dump_flag) -------------------------- setDynFlag, unSetDynFlag :: DynFlag -> DynP () -setDynFlag f = do { upd (\dfs -> dopt_set dfs f) - ; mapM_ setDynFlag deps } +setDynFlag f = upd (\dfs -> dopt_set dfs f) +unSetDynFlag f = upd (\dfs -> dopt_unset dfs f) + +-------------------------- +setExtensionFlag, unSetExtensionFlag :: ExtensionFlag -> DynP () +setExtensionFlag f = do { upd (\dfs -> xopt_set dfs f) + ; sequence_ deps } where - deps = [ d | (f', d) <- impliedFlags, f' == f ] + deps = [ if turn_on then setExtensionFlag d + else unSetExtensionFlag d + | (f', turn_on, d) <- impliedFlags, f' == f ] -- When you set f, set the ones it implies - -- NB: use setDynFlag recursively, in case the implied flags - -- implies further flags - -- When you un-set f, however, we don't un-set the things it implies - -- (except for -fno-glasgow-exts, which is treated specially) + -- NB: use setExtensionFlag recursively, in case the implied flags + -- implies further flags -unSetDynFlag f = upd (\dfs -> dopt_unset dfs f) +unSetExtensionFlag f = upd (\dfs -> xopt_unset dfs f) + -- When you un-set f, however, we don't un-set the things it implies + -- (except for -fno-glasgow-exts, which is treated specially) -------------------------- -setDumpFlag :: DynFlag -> OptKind DynP -setDumpFlag dump_flag = NoArg (setDumpFlag' dump_flag) - setDumpFlag' :: DynFlag -> DynP () setDumpFlag' dump_flag = do { setDynFlag dump_flag - ; when want_recomp forceRecompile } + ; when want_recomp forceRecompile } where -- Certain dumpy-things are really interested in what's going -- on during recompilation checking, so in those cases we @@ -1849,7 +1898,7 @@ forceRecompile :: DynP () -- recompilation checker), else you don't see the dump! However, -- don't switch it off in --make mode, else *everything* gets -- recompiled which probably isn't what you want -forceRecompile = do { dfs <- getCmdLineState +forceRecompile = do { dfs <- liftEwM getCmdLineState ; when (force_recomp dfs) (setDynFlag Opt_ForceRecomp) } where force_recomp dfs = isOneShot (ghcMode dfs) @@ -1938,7 +1987,6 @@ setDPHOpt dflags = setOptLevel 2 (dflags { maxSimplIterations = 20 , specConstrCount = Nothing }) `dopt_set` Opt_DictsCheap - `dopt_unset` Opt_MethodSharing data DPHBackend = DPHPar | DPHSeq @@ -2066,6 +2114,9 @@ setTmpDir dir dflags = dflags{ tmpDir = normalise dir } setRtsOpts :: String -> DynP () setRtsOpts arg = upd $ \ d -> d {rtsOpts = Just arg} +setRtsOptsEnabled :: RtsOptsEnabled -> DynP () +setRtsOptsEnabled arg = upd $ \ d -> d {rtsOptsEnabled = arg} + ----------------------------------------------------------------------------- -- Hpc stuff @@ -2089,7 +2140,12 @@ setOptHpcDir arg = upd $ \ d -> d{hpcDir = arg} machdepCCOpts :: DynFlags -> ([String], -- flags for all C compilations [String]) -- for registerised HC compilations -machdepCCOpts _dflags +machdepCCOpts dflags = let (flagsAll, flagsRegHc) = machdepCCOpts' dflags + in (cCcOpts ++ flagsAll, flagsRegHc) + +machdepCCOpts' :: DynFlags -> ([String], -- flags for all C compilations + [String]) -- for registerised HC compilations +machdepCCOpts' _dflags #if alpha_TARGET_ARCH = ( ["-w", "-mieee" #ifdef HAVE_THREADED_RTS_SUPPORT @@ -2124,19 +2180,9 @@ machdepCCOpts _dflags -- the fp (%ebp) for our register maps. = let n_regs = stolen_x86_regs _dflags in - ( -#if darwin_TARGET_OS - -- By default, gcc on OS X will generate SSE - -- instructions, which need things 16-byte aligned, - -- but we don't 16-byte align things. Thus drop - -- back to generic i686 compatibility. Trac #2983. - -- - -- Since Snow Leopard (10.6), gcc defaults to x86_64. - ["-march=i686", "-m32"], -#else + ( [ if opt_Static then "-DDONT_WANT_WIN32_DLL_SUPPORT" else "" ], -#endif [ "-fno-defer-pop", "-fomit-frame-pointer", -- we want -fno-builtin, because when gcc inlines @@ -2151,11 +2197,7 @@ machdepCCOpts _dflags #elif x86_64_TARGET_ARCH = ( -#if darwin_TARGET_OS - ["-m64"], -#else - [], -#endif + [], ["-fomit-frame-pointer", "-fno-asynchronous-unwind-tables", -- the unwind tables are unnecessary for HC code, @@ -2206,6 +2248,11 @@ picCCOpts _dflags | otherwise = [] #else + -- we need -fPIC for C files when we are compiling with -dynamic, + -- otherwise things like stub.c files don't get compiled + -- correctly. They need to reference data in the Haskell + -- objects, but can't without -fPIC. See + -- http://hackage.haskell.org/trac/ghc/wiki/Commentary/PositionIndependentCode | opt_PIC || not opt_Static = ["-fPIC", "-U __PIC__", "-D__PIC__"] | otherwise @@ -2229,10 +2276,14 @@ compilerInfo = [("Project name", String cProjectName), ("Project version", String cProjectVersion), ("Booter version", String cBooterVersion), ("Stage", String cStage), + ("Build platform", String cBuildPlatform), + ("Host platform", String cHostPlatform), + ("Target platform", String cTargetPlatform), ("Have interpreter", String cGhcWithInterpreter), ("Object splitting", String cSplitObjs), ("Have native code generator", String cGhcWithNativeCodeGen), ("Have llvm code generator", String cGhcWithLlvmCodeGen), + ("Use archives for ghci", String (show cUseArchivesForGhci)), ("Support SMP", String cGhcWithSMP), ("Unregisterised", String cGhcUnregisterised), ("Tables next to code", String cGhcEnableTablesNextToCode),