2 -- Temporary, until rtsIsProfiled is fixed
8 -- (c) The University of Glasgow 2005
11 -- Most flags are dynamic flags, which means they can change from
12 -- compilation to compilation using @OPTIONS_GHC@ pragmas, and in a
13 -- multi-session GHC each session can be using different dynamic
14 -- flags. Dynamic flags can also be set at the prompt in GHCi.
16 -- * Dynamic flags and associated configuration types
28 HscTarget(..), isObjectTarget, defaultObjectTarget,
29 GhcMode(..), isOneShot,
30 GhcLink(..), isNoLink,
34 fFlags, fLangFlags, xFlags,
35 DPHBackend(..), dphPackageMaybe,
38 -- ** Manipulating DynFlags
39 defaultDynFlags, -- DynFlags
40 initDynFlags, -- DynFlags -> IO DynFlags
42 getOpts, -- DynFlags -> (DynFlags -> [a]) -> [a]
49 -- ** Parsing DynFlags
51 parseDynamicNoPackageFlags,
54 supportedLanguagesAndExtensions,
56 -- ** DynFlag C compiler options
57 machdepCCOpts, picCCOpts,
59 -- * Configuration of the stg-to-stg passes
63 -- * Compiler configuration suitable for display to the user
67 -- Only in stage 2 can we be sure that the RTS
68 -- exposes the appropriate runtime boolean
73 #include "HsVersions.h"
75 #ifndef OMIT_NATIVE_CODEGEN
80 import PrelNames ( mAIN )
82 import {-# SOURCE #-} Packages (PackageState)
83 import DriverPhases ( Phase(..), phaseInputExt )
86 import Constants ( mAX_CONTEXT_REDUCTION_DEPTH )
89 import Maybes ( orElse )
93 import Foreign.C ( CInt )
94 import {-# SOURCE #-} ErrUtils ( Severity(..), Message, mkLocMessage )
96 import System.IO.Unsafe ( unsafePerformIO )
98 import Control.Monad ( when )
102 import Data.Map (Map)
103 import qualified Data.Map as Map
105 import System.FilePath
106 import System.IO ( stderr, hPutChar )
108 -- -----------------------------------------------------------------------------
111 -- | Enumerates the simple on-or-off dynamic flags
118 | Opt_D_dump_cmmz_pretty
122 | Opt_D_dump_asm_native
123 | Opt_D_dump_asm_liveness
124 | Opt_D_dump_asm_coalesce
125 | Opt_D_dump_asm_regalloc
126 | Opt_D_dump_asm_regalloc_stages
127 | Opt_D_dump_asm_conflicts
128 | Opt_D_dump_asm_stats
129 | Opt_D_dump_asm_expanded
131 | Opt_D_dump_core_stats
137 | Opt_D_dump_inlinings
138 | Opt_D_dump_rule_firings
139 | Opt_D_dump_rule_rewrites
140 | Opt_D_dump_occur_anal
144 | Opt_D_dump_simpl_iterations
145 | Opt_D_dump_simpl_phases
154 | Opt_D_dump_worker_wrapper
155 | Opt_D_dump_rn_trace
156 | Opt_D_dump_rn_stats
158 | Opt_D_dump_simpl_stats
159 | Opt_D_dump_cs_trace -- Constraint solver in type checker
160 | Opt_D_dump_tc_trace
161 | Opt_D_dump_if_trace
162 | Opt_D_dump_vt_trace
169 | Opt_D_verbose_core2core
170 | Opt_D_verbose_stg2stg
172 | Opt_D_dump_hi_diffs
173 | Opt_D_dump_minimal_imports
174 | Opt_D_dump_mod_cycles
175 | Opt_D_dump_view_pattern_commoning
176 | Opt_D_faststring_stats
177 | Opt_DumpToFile -- ^ Append dump output to files instead of stdout.
178 | Opt_D_no_debug_output
184 | Opt_WarnIsError -- -Werror; makes warnings fatal
185 | Opt_WarnDuplicateExports
187 | Opt_WarnImplicitPrelude
188 | Opt_WarnIncompletePatterns
189 | Opt_WarnIncompleteUniPatterns
190 | Opt_WarnIncompletePatternsRecUpd
191 | Opt_WarnMissingFields
192 | Opt_WarnMissingImportList
193 | Opt_WarnMissingMethods
194 | Opt_WarnMissingSigs
195 | Opt_WarnMissingLocalSigs
196 | Opt_WarnNameShadowing
197 | Opt_WarnOverlappingPatterns
198 | Opt_WarnTypeDefaults
199 | Opt_WarnMonomorphism
200 | Opt_WarnUnusedBinds
201 | Opt_WarnUnusedImports
202 | Opt_WarnUnusedMatches
203 | Opt_WarnWarningsDeprecations
204 | Opt_WarnDeprecatedFlags
205 | Opt_WarnDodgyExports
206 | Opt_WarnDodgyImports
208 | Opt_WarnAutoOrphans
211 | Opt_WarnUnrecognisedPragmas
212 | Opt_WarnDodgyForeignImports
213 | Opt_WarnLazyUnliftedBindings
214 | Opt_WarnUnusedDoBind
215 | Opt_WarnWrongDoBind
216 | Opt_WarnAlternativeLayoutRuleTransitional
218 | Opt_PrintExplicitForalls
225 | Opt_StaticArgumentTransformation
229 | Opt_DoLambdaEtaExpansion
233 | Opt_UnboxStrictFields
234 | Opt_MethodSharing -- Now a no-op; remove in GHC 7.2
236 | Opt_EnableRewriteRules -- Apply rewrite rules during simplification
238 | Opt_RegsGraph -- do graph coloring register allocation
239 | Opt_RegsIterative -- do iterative coalescing graph coloring register allocation
242 | Opt_IgnoreInterfacePragmas
243 | Opt_OmitInterfacePragmas
244 | Opt_ExposeAllUnfoldings
247 | Opt_AutoSccsOnAllToplevs
248 | Opt_AutoSccsOnExportedToplevs
249 | Opt_AutoSccsOnIndividualCafs
255 | Opt_ExcessPrecision
256 | Opt_EagerBlackHoling
257 | Opt_ReadUserPackageConf
261 | Opt_HideAllPackages
262 | Opt_PrintBindResult
266 | Opt_BreakOnException
268 | Opt_PrintEvldWithShow
269 | Opt_PrintBindContents
272 | Opt_EmitExternalCore
274 | Opt_BuildingCabalPackage
282 | Opt_ConvertToZipCfgAndBack
283 | Opt_AutoLinkPackages
284 | Opt_ImplicitImportQualified
292 | Opt_KeepRawTokenStream
297 data Language = Haskell98 | Haskell2010
301 | Opt_OverlappingInstances
302 | Opt_UndecidableInstances
303 | Opt_IncoherentInstances
304 | Opt_MonomorphismRestriction
307 | Opt_RelaxedPolyRec -- Deprecated
308 | Opt_ExtendedDefaultRules -- Use GHC's extended rules for defaulting
309 | Opt_ForeignFunctionInterface
310 | Opt_UnliftedFFITypes
311 | Opt_GHCForeignImportPrim
312 | Opt_ParallelArrays -- Syntactic support for parallel arrays
313 | Opt_Arrows -- Arrow-notation syntax
314 | Opt_TemplateHaskell
317 | Opt_Generics -- "Derivable type classes"
318 | Opt_ImplicitPrelude
319 | Opt_ScopedTypeVariables
323 | Opt_OverloadedStrings
324 | Opt_DisambiguateRecordFields
325 | Opt_RecordWildCards
331 | Opt_DoAndIfThenElse
332 | Opt_RebindableSyntax
334 | Opt_StandaloneDeriving
335 | Opt_DeriveDataTypeable
337 | Opt_DeriveTraversable
340 | Opt_TypeSynonymInstances
341 | Opt_FlexibleContexts
342 | Opt_FlexibleInstances
343 | Opt_ConstrainedClassMethods
344 | Opt_MultiParamTypeClasses
345 | Opt_FunctionalDependencies
347 | Opt_PolymorphicComponents
348 | Opt_ExistentialQuantification
352 | Opt_ParallelListComp
353 | Opt_TransformListComp
354 | Opt_MonadComprehensions
355 | Opt_GeneralizedNewtypeDeriving
358 | Opt_PostfixOperators
361 | Opt_LiberalTypeSynonyms
364 | Opt_ImpredicativeTypes
368 | Opt_AlternativeLayoutRule
369 | Opt_AlternativeLayoutRuleTransitional
370 | Opt_DatatypeContexts
371 | Opt_NondecreasingIndentation
375 -- | Contains not only a collection of 'DynFlag's but also a plethora of
376 -- information relating to the compilation of a single file or GHC session
377 data DynFlags = DynFlags {
380 hscTarget :: HscTarget,
381 hscOutName :: String, -- ^ Name of the output file
382 extCoreName :: String, -- ^ Name of the .hcr output file
383 verbosity :: Int, -- ^ Verbosity level: see Note [Verbosity levels]
384 optLevel :: Int, -- ^ Optimisation level
385 simplPhases :: Int, -- ^ Number of simplifier phases
386 maxSimplIterations :: Int, -- ^ Max simplifier iterations
387 shouldDumpSimplPhase :: Maybe String,
388 ruleCheck :: Maybe String,
389 strictnessBefore :: [Int], -- ^ Additional demand analysis
391 specConstrThreshold :: Maybe Int, -- ^ Threshold for SpecConstr
392 specConstrCount :: Maybe Int, -- ^ Max number of specialisations for any one function
393 liberateCaseThreshold :: Maybe Int, -- ^ Threshold for LiberateCase
394 floatLamArgs :: Maybe Int, -- ^ Arg count for lambda floating
395 -- See CoreMonad.FloatOutSwitches
397 #ifndef OMIT_NATIVE_CODEGEN
398 targetPlatform :: Platform, -- ^ The platform we're compiling for. Used by the NCG.
400 cmdlineHcIncludes :: [String], -- ^ @\-\#includes@
401 importPaths :: [FilePath],
403 mainFunIs :: Maybe String,
404 ctxtStkDepth :: Int, -- ^ Typechecker context stack depth
406 dphBackend :: DPHBackend,
408 thisPackage :: PackageId, -- ^ name of package currently being compiled
411 ways :: [Way], -- ^ Way flags from the command line
412 buildTag :: String, -- ^ The global \"way\" (e.g. \"p\" for prof)
413 rtsBuildTag :: String, -- ^ The RTS \"way\"
415 -- For object splitting
416 splitInfo :: Maybe (String,Int),
419 objectDir :: Maybe String,
420 dylibInstallName :: Maybe String,
421 hiDir :: Maybe String,
422 stubDir :: Maybe String,
428 outputFile :: Maybe String,
429 outputHi :: Maybe String,
430 dynLibLoader :: DynLibLoader,
432 -- | This is set by 'DriverPipeline.runPipeline' based on where
433 -- its output is going.
434 dumpPrefix :: Maybe FilePath,
436 -- | Override the 'dumpPrefix' set by 'DriverPipeline.runPipeline'.
437 -- Set by @-ddump-file-prefix@
438 dumpPrefixForce :: Maybe FilePath,
440 includePaths :: [String],
441 libraryPaths :: [String],
442 frameworkPaths :: [String], -- used on darwin only
443 cmdlineFrameworks :: [String], -- ditto
444 tmpDir :: String, -- no trailing '/'
446 ghcUsagePath :: FilePath, -- Filled in by SysTools
447 ghciUsagePath :: FilePath, -- ditto
448 rtsOpts :: Maybe String,
449 rtsOptsEnabled :: RtsOptsEnabled,
451 hpcDir :: String, -- ^ Path to store the .mix files
453 -- options for particular phases
461 opt_windres :: [String],
462 opt_lo :: [String], -- LLVM: llvm optimiser
463 opt_lc :: [String], -- LLVM: llc static compiler
465 -- commands for particular phases
467 pgm_P :: (String,[Option]),
469 pgm_c :: (String,[Option]),
470 pgm_s :: (String,[Option]),
471 pgm_a :: (String,[Option]),
472 pgm_l :: (String,[Option]),
473 pgm_dll :: (String,[Option]),
475 pgm_sysman :: String,
476 pgm_windres :: String,
477 pgm_lo :: (String,[Option]), -- LLVM: opt llvm optimiser
478 pgm_lc :: (String,[Option]), -- LLVM: llc static compiler
481 depMakefile :: FilePath,
482 depIncludePkgDeps :: Bool,
483 depExcludeMods :: [ModuleName],
484 depSuffixes :: [String],
487 extraPkgConfs :: [FilePath],
488 topDir :: FilePath, -- filled in by SysTools
489 systemPackageConfig :: FilePath, -- ditto
490 -- ^ The @-package-conf@ flags given on the command line, in the order
493 packageFlags :: [PackageFlag],
494 -- ^ The @-package@ and @-hide-package@ flags from the command-line
497 -- NB. do not modify this field, it is calculated by
498 -- Packages.initPackages and Packages.updatePackages.
499 pkgDatabase :: Maybe [PackageConfig],
500 pkgState :: PackageState,
503 -- These have to be IORefs, because the defaultCleanupHandler needs to
504 -- know what to clean when an exception happens
505 filesToClean :: IORef [FilePath],
506 dirsToClean :: IORef (Map FilePath FilePath),
510 -- Don't change this without updating extensionFlags:
511 language :: Maybe Language,
512 -- Don't change this without updating extensionFlags:
513 extensions :: [OnOff ExtensionFlag],
514 -- extensionFlags should always be equal to
515 -- flattenExtensionFlags language extensions
516 extensionFlags :: [ExtensionFlag],
518 -- | Message output action: use "ErrUtils" instead of this if you can
519 log_action :: Severity -> SrcSpan -> PprStyle -> Message -> IO (),
521 haddockOptions :: Maybe String
524 wayNames :: DynFlags -> [WayName]
525 wayNames = map wayName . ways
527 -- | The target code type of the compilation (if any).
529 -- Whenever you change the target, also make sure to set 'ghcLink' to
530 -- something sensible.
532 -- 'HscNothing' can be used to avoid generating any output, however, note
535 -- * This will not run the desugaring step, thus no warnings generated in
536 -- this step will be output. In particular, this includes warnings related
537 -- to pattern matching. You can run the desugarer manually using
538 -- 'GHC.desugarModule'.
540 -- * If a program uses Template Haskell the typechecker may try to run code
541 -- from an imported module. This will fail if no code has been generated
542 -- for this module. You can use 'GHC.needsTemplateHaskell' to detect
543 -- whether this might be the case and choose to either switch to a
544 -- different target or avoid typechecking such modules. (The latter may
545 -- preferable for security reasons.)
548 = HscC -- ^ Generate C code.
549 | HscAsm -- ^ Generate assembly using the native code generator.
550 | HscLlvm -- ^ Generate assembly using the llvm code generator.
551 | HscJava -- ^ Generate Java bytecode.
552 | HscInterpreted -- ^ Generate bytecode. (Requires 'LinkInMemory')
553 | HscNothing -- ^ Don't generate any code. See notes above.
556 -- | Will this target result in an object file on the disk?
557 isObjectTarget :: HscTarget -> Bool
558 isObjectTarget HscC = True
559 isObjectTarget HscAsm = True
560 isObjectTarget HscLlvm = True
561 isObjectTarget _ = False
563 -- | The 'GhcMode' tells us whether we're doing multi-module
564 -- compilation (controlled via the "GHC" API) or one-shot
565 -- (single-module) compilation. This makes a difference primarily to
566 -- the "Finder": in one-shot mode we look for interface files for
567 -- imported modules, but in multi-module mode we look for source files
568 -- in order to check whether they need to be recompiled.
570 = CompManager -- ^ @\-\-make@, GHCi, etc.
571 | OneShot -- ^ @ghc -c Foo.hs@
572 | MkDepend -- ^ @ghc -M@, see "Finder" for why we need this
575 instance Outputable GhcMode where
576 ppr CompManager = ptext (sLit "CompManager")
577 ppr OneShot = ptext (sLit "OneShot")
578 ppr MkDepend = ptext (sLit "MkDepend")
580 isOneShot :: GhcMode -> Bool
581 isOneShot OneShot = True
582 isOneShot _other = False
584 -- | What to do in the link step, if there is one.
586 = NoLink -- ^ Don't link at all
587 | LinkBinary -- ^ Link object code into a binary
588 | LinkInMemory -- ^ Use the in-memory dynamic linker (works for both
589 -- bytecode and object code).
590 | LinkDynLib -- ^ Link objects into a dynamic lib (DLL on Windows, DSO on ELF platforms)
593 isNoLink :: GhcLink -> Bool
594 isNoLink NoLink = True
597 -- Is it worth evaluating this Bool and caching it in the DynFlags value
598 -- during initDynFlags?
599 doingTickyProfiling :: DynFlags -> Bool
600 doingTickyProfiling _ = opt_Ticky
601 -- XXX -ticky is a static flag, because it implies -debug which is also
602 -- static. If the way flags were made dynamic, we could fix this.
605 = ExposePackage String
606 | ExposePackageId String
608 | IgnorePackage String
611 defaultHscTarget :: HscTarget
612 defaultHscTarget = defaultObjectTarget
614 -- | The 'HscTarget' value corresponding to the default way to create
615 -- object files on the current platform.
616 defaultObjectTarget :: HscTarget
618 | cGhcWithNativeCodeGen == "YES" = HscAsm
626 data RtsOptsEnabled = RtsOptsNone | RtsOptsSafeOnly | RtsOptsAll
629 -- | Used by 'GHC.newSession' to partially initialize a new 'DynFlags' value
630 initDynFlags :: DynFlags -> IO DynFlags
631 initDynFlags dflags = do
632 -- someday these will be dynamic flags
633 ways <- readIORef v_Ways
634 refFilesToClean <- newIORef []
635 refDirsToClean <- newIORef Map.empty
638 buildTag = mkBuildTag (filter (not . wayRTSOnly) ways),
639 rtsBuildTag = mkBuildTag ways,
640 filesToClean = refFilesToClean,
641 dirsToClean = refDirsToClean
644 -- | The normal 'DynFlags'. Note that they is not suitable for use in this form
645 -- and must be fully initialized by 'GHC.newSession' first.
646 defaultDynFlags :: DynFlags
649 ghcMode = CompManager,
650 ghcLink = LinkBinary,
651 hscTarget = defaultHscTarget,
657 maxSimplIterations = 4,
658 shouldDumpSimplPhase = Nothing,
660 specConstrThreshold = Just 200,
661 specConstrCount = Just 3,
662 liberateCaseThreshold = Just 200,
663 floatLamArgs = Just 0, -- Default: float only if no fvs
664 strictnessBefore = [],
666 #ifndef OMIT_NATIVE_CODEGEN
667 targetPlatform = defaultTargetPlatform,
669 cmdlineHcIncludes = [],
673 ctxtStkDepth = mAX_CONTEXT_REDUCTION_DEPTH,
675 dphBackend = DPHNone,
677 thisPackage = mainPackageId,
680 dylibInstallName = Nothing,
684 objectSuf = phaseInputExt StopLn,
685 hcSuf = phaseInputExt HCc,
688 outputFile = Nothing,
690 dynLibLoader = SystemDependent,
691 dumpPrefix = Nothing,
692 dumpPrefixForce = Nothing,
696 cmdlineFrameworks = [],
697 tmpDir = cDEFAULT_TMPDIR,
699 rtsOptsEnabled = RtsOptsSafeOnly,
705 then ["-D__PIC__", "-U __PIC__"] -- this list is reversed
718 pkgDatabase = Nothing,
719 pkgState = panic "no package state yet: call GHC.setSessionDynFlags",
720 ways = panic "defaultDynFlags: No ways",
721 buildTag = panic "defaultDynFlags: No buildTag",
722 rtsBuildTag = panic "defaultDynFlags: No rtsBuildTag",
724 -- initSysTools fills all these in
725 ghcUsagePath = panic "defaultDynFlags: No ghciUsagePath",
726 ghciUsagePath = panic "defaultDynFlags: No ghciUsagePath",
727 topDir = panic "defaultDynFlags: No topDir",
728 systemPackageConfig = panic "no systemPackageConfig: call GHC.setSessionDynFlags",
729 pgm_L = panic "defaultDynFlags: No pgm_L",
730 pgm_P = panic "defaultDynFlags: No pgm_P",
731 pgm_F = panic "defaultDynFlags: No pgm_F",
732 pgm_c = panic "defaultDynFlags: No pgm_c",
733 pgm_s = panic "defaultDynFlags: No pgm_s",
734 pgm_a = panic "defaultDynFlags: No pgm_a",
735 pgm_l = panic "defaultDynFlags: No pgm_l",
736 pgm_dll = panic "defaultDynFlags: No pgm_dll",
737 pgm_T = panic "defaultDynFlags: No pgm_T",
738 pgm_sysman = panic "defaultDynFlags: No pgm_sysman",
739 pgm_windres = panic "defaultDynFlags: No pgm_windres",
740 pgm_lo = panic "defaultDynFlags: No pgm_lo",
741 pgm_lc = panic "defaultDynFlags: No pgm_lc",
742 -- end of initSysTools values
744 depMakefile = "Makefile",
745 depIncludePkgDeps = False,
748 -- end of ghc -M values
749 filesToClean = panic "defaultDynFlags: No filesToClean",
750 dirsToClean = panic "defaultDynFlags: No dirsToClean",
751 haddockOptions = Nothing,
752 flags = defaultFlags,
755 extensionFlags = flattenExtensionFlags Nothing [],
757 log_action = \severity srcSpan style msg ->
759 SevOutput -> printOutput (msg style)
760 SevInfo -> printErrs (msg style)
761 SevFatal -> printErrs (msg style)
764 printErrs ((mkLocMessage srcSpan msg) style)
765 -- careful (#2302): printErrs prints in UTF-8, whereas
766 -- converting to string first and using hPutStr would
767 -- just emit the low 8 bits of each unicode char.
771 Note [Verbosity levels]
772 ~~~~~~~~~~~~~~~~~~~~~~~
773 0 | print errors & warnings only
774 1 | minimal verbosity: print "compiling M ... done." for each module.
775 2 | equivalent to -dshow-passes
776 3 | equivalent to existing "ghc -v"
777 4 | "ghc -v -ddump-most"
778 5 | "ghc -v -ddump-all"
784 -- OnOffs accumulate in reverse order, so we use foldr in order to
785 -- process them in the right order
786 flattenExtensionFlags :: Maybe Language -> [OnOff ExtensionFlag]
788 flattenExtensionFlags ml = foldr f defaultExtensionFlags
789 where f (On f) flags = f : delete f flags
790 f (Off f) flags = delete f flags
791 defaultExtensionFlags = languageExtensions ml
793 languageExtensions :: Maybe Language -> [ExtensionFlag]
795 languageExtensions Nothing
796 -- Nothing => the default case
797 = Opt_MonoPatBinds -- Experimentally, I'm making this non-standard
798 -- behaviour the default, to see if anyone notices
800 -- In due course I'd like Opt_MonoLocalBinds to be on by default
801 -- But NB it's implied by GADTs etc
802 -- SLPJ September 2010
803 : Opt_NondecreasingIndentation -- This has been on by default for some time
804 : languageExtensions (Just Haskell2010)
806 languageExtensions (Just Haskell98)
807 = [Opt_ImplicitPrelude,
808 Opt_MonomorphismRestriction,
810 Opt_DatatypeContexts,
811 Opt_NondecreasingIndentation
812 -- strictly speaking non-standard, but we always had this
813 -- on implicitly before the option was added in 7.1, and
814 -- turning it off breaks code, so we're keeping it on for
815 -- backwards compatibility. Cabal uses -XHaskell98 by
816 -- default unless you specify another language.
819 languageExtensions (Just Haskell2010)
820 = [Opt_ImplicitPrelude,
821 Opt_MonomorphismRestriction,
822 Opt_DatatypeContexts,
824 Opt_ForeignFunctionInterface,
829 -- | Test whether a 'DynFlag' is set
830 dopt :: DynFlag -> DynFlags -> Bool
831 dopt f dflags = f `elem` (flags dflags)
834 dopt_set :: DynFlags -> DynFlag -> DynFlags
835 dopt_set dfs f = dfs{ flags = f : flags dfs }
837 -- | Unset a 'DynFlag'
838 dopt_unset :: DynFlags -> DynFlag -> DynFlags
839 dopt_unset dfs f = dfs{ flags = filter (/= f) (flags dfs) }
841 -- | Test whether a 'ExtensionFlag' is set
842 xopt :: ExtensionFlag -> DynFlags -> Bool
843 xopt f dflags = f `elem` extensionFlags dflags
845 -- | Set a 'ExtensionFlag'
846 xopt_set :: DynFlags -> ExtensionFlag -> DynFlags
848 = let onoffs = On f : extensions dfs
849 in dfs { extensions = onoffs,
850 extensionFlags = flattenExtensionFlags (language dfs) onoffs }
852 -- | Unset a 'ExtensionFlag'
853 xopt_unset :: DynFlags -> ExtensionFlag -> DynFlags
855 = let onoffs = Off f : extensions dfs
856 in dfs { extensions = onoffs,
857 extensionFlags = flattenExtensionFlags (language dfs) onoffs }
859 setLanguage :: Language -> DynP ()
860 setLanguage l = upd f
861 where f dfs = let mLang = Just l
862 oneoffs = extensions dfs
865 extensionFlags = flattenExtensionFlags mLang oneoffs
868 -- | Retrieve the options corresponding to a particular @opt_*@ field in the correct order
869 getOpts :: DynFlags -- ^ 'DynFlags' to retrieve the options from
870 -> (DynFlags -> [a]) -- ^ Relevant record accessor: one of the @opt_*@ accessors
871 -> [a] -- ^ Correctly ordered extracted options
872 getOpts dflags opts = reverse (opts dflags)
873 -- We add to the options from the front, so we need to reverse the list
875 -- | Gets the verbosity flag for the current verbosity level. This is fed to
876 -- other tools, so GHC-specific verbosity flags like @-ddump-most@ are not included
877 getVerbFlags :: DynFlags -> [String]
879 | verbosity dflags >= 4 = ["-v"]
882 setObjectDir, setHiDir, setStubDir, setOutputDir, setDylibInstallName,
883 setObjectSuf, setHiSuf, setHcSuf, parseDynLibLoaderMode,
884 setPgmP, addOptl, addOptP,
885 addCmdlineFramework, addHaddockOpts
886 :: String -> DynFlags -> DynFlags
887 setOutputFile, setOutputHi, setDumpPrefixForce
888 :: Maybe String -> DynFlags -> DynFlags
890 setObjectDir f d = d{ objectDir = Just f}
891 setHiDir f d = d{ hiDir = Just f}
892 setStubDir f d = d{ stubDir = Just f, includePaths = f : includePaths d }
893 -- -stubdir D adds an implicit -I D, so that gcc can find the _stub.h file
894 -- \#included from the .hc file when compiling via C (i.e. unregisterised
896 setOutputDir f = setObjectDir f . setHiDir f . setStubDir f
897 setDylibInstallName f d = d{ dylibInstallName = Just f}
899 setObjectSuf f d = d{ objectSuf = f}
900 setHiSuf f d = d{ hiSuf = f}
901 setHcSuf f d = d{ hcSuf = f}
903 setOutputFile f d = d{ outputFile = f}
904 setOutputHi f d = d{ outputHi = f}
906 parseDynLibLoaderMode f d =
908 ("deploy", "") -> d{ dynLibLoader = Deployable }
909 ("sysdep", "") -> d{ dynLibLoader = SystemDependent }
910 _ -> ghcError (CmdLineError ("Unknown dynlib loader: " ++ f))
912 setDumpPrefixForce f d = d { dumpPrefixForce = f}
914 -- XXX HACK: Prelude> words "'does not' work" ===> ["'does","not'","work"]
915 -- Config.hs should really use Option.
916 setPgmP f d = let (pgm:args) = words f in d{ pgm_P = (pgm, map Option args)}
917 addOptl f d = d{ opt_l = f : opt_l d}
918 addOptP f d = d{ opt_P = f : opt_P d}
921 setDepMakefile :: FilePath -> DynFlags -> DynFlags
922 setDepMakefile f d = d { depMakefile = deOptDep f }
924 setDepIncludePkgDeps :: Bool -> DynFlags -> DynFlags
925 setDepIncludePkgDeps b d = d { depIncludePkgDeps = b }
927 addDepExcludeMod :: String -> DynFlags -> DynFlags
929 = d { depExcludeMods = mkModuleName (deOptDep m) : depExcludeMods d }
931 addDepSuffix :: FilePath -> DynFlags -> DynFlags
932 addDepSuffix s d = d { depSuffixes = deOptDep s : depSuffixes d }
935 -- We used to use "-optdep-flag -optdeparg", so for legacy applications
936 -- we need to strip the "-optdep" off of the arg
937 deOptDep :: String -> String
938 deOptDep x = case stripPrefix "-optdep" x of
942 addCmdlineFramework f d = d{ cmdlineFrameworks = f : cmdlineFrameworks d}
944 addHaddockOpts f d = d{ haddockOptions = Just f}
946 -- -----------------------------------------------------------------------------
947 -- Command-line options
949 -- | When invoking external tools as part of the compilation pipeline, we
950 -- pass these a sequence of options on the command-line. Rather than
951 -- just using a list of Strings, we use a type that allows us to distinguish
952 -- between filepaths and 'other stuff'. The reason for this is that
953 -- this type gives us a handle on transforming filenames, and filenames only,
954 -- to whatever format they're expected to be on a particular platform.
956 = FileOption -- an entry that _contains_ filename(s) / filepaths.
957 String -- a non-filepath prefix that shouldn't be
958 -- transformed (e.g., "/out=")
959 String -- the filepath/filename portion
962 showOpt :: Option -> String
963 showOpt (FileOption pre f) = pre ++ f
964 showOpt (Option s) = s
966 -----------------------------------------------------------------------------
967 -- Setting the optimisation level
969 updOptLevel :: Int -> DynFlags -> DynFlags
970 -- ^ Sets the 'DynFlags' to be appropriate to the optimisation level
972 = dfs2{ optLevel = final_n }
974 final_n = max 0 (min 2 n) -- Clamp to 0 <= n <= 2
975 dfs1 = foldr (flip dopt_unset) dfs remove_dopts
976 dfs2 = foldr (flip dopt_set) dfs1 extra_dopts
978 extra_dopts = [ f | (ns,f) <- optLevelFlags, final_n `elem` ns ]
979 remove_dopts = [ f | (ns,f) <- optLevelFlags, final_n `notElem` ns ]
981 -- -----------------------------------------------------------------------------
982 -- StgToDo: abstraction of stg-to-stg passes to run.
985 = StgDoMassageForProfiling -- should be (next to) last
986 -- There's also setStgVarInfo, but its absolute "lastness"
987 -- is so critical that it is hardwired in (no flag).
990 getStgToDo :: DynFlags -> [StgToDo]
994 stg_stats = dopt Opt_StgStats dflags
996 todo1 = if stg_stats then [D_stg_stats] else []
998 todo2 | WayProf `elem` wayNames dflags
999 = StgDoMassageForProfiling : todo1
1003 {- **********************************************************************
1007 %********************************************************************* -}
1009 -- -----------------------------------------------------------------------------
1010 -- Parsing the dynamic flags.
1012 -- | Parse dynamic flags from a list of command line arguments. Returns the
1013 -- the parsed 'DynFlags', the left-over arguments, and a list of warnings.
1014 -- Throws a 'UsageError' if errors occurred during parsing (such as unknown
1015 -- flags or missing arguments).
1016 parseDynamicFlags :: Monad m =>
1017 DynFlags -> [Located String]
1018 -> m (DynFlags, [Located String], [Located String])
1019 -- ^ Updated 'DynFlags', left-over arguments, and
1020 -- list of warnings.
1021 parseDynamicFlags dflags args = parseDynamicFlags_ dflags args True
1023 -- | Like 'parseDynamicFlags' but does not allow the package flags (-package,
1024 -- -hide-package, -ignore-package, -hide-all-packages, -package-conf).
1025 parseDynamicNoPackageFlags :: Monad m =>
1026 DynFlags -> [Located String]
1027 -> m (DynFlags, [Located String], [Located String])
1028 -- ^ Updated 'DynFlags', left-over arguments, and
1029 -- list of warnings.
1030 parseDynamicNoPackageFlags dflags args = parseDynamicFlags_ dflags args False
1032 parseDynamicFlags_ :: Monad m =>
1033 DynFlags -> [Located String] -> Bool
1034 -> m (DynFlags, [Located String], [Located String])
1035 parseDynamicFlags_ dflags0 args pkg_flags = do
1036 -- XXX Legacy support code
1037 -- We used to accept things like
1038 -- optdep-f -optdepdepend
1039 -- optdep-f -optdep depend
1040 -- optdep -f -optdepdepend
1041 -- optdep -f -optdep depend
1042 -- but the spaces trip up proper argument handling. So get rid of them.
1043 let f (L p "-optdep" : L _ x : xs) = (L p ("-optdep" ++ x)) : f xs
1044 f (x : xs) = x : f xs
1048 -- Note: -ignore-package (package_flags) must precede -i* (dynamic_flags)
1049 flag_spec | pkg_flags = package_flags ++ dynamic_flags
1050 | otherwise = dynamic_flags
1052 let ((leftover, errs, warns), dflags1)
1053 = runCmdLine (processArgs flag_spec args') dflags0
1054 when (not (null errs)) $ ghcError $ errorsToGhcException errs
1056 let (pic_warns, dflags2)
1057 #if !(x86_64_TARGET_ARCH && linux_TARGET_OS)
1058 | (not opt_Static || opt_PIC) && hscTarget dflags1 == HscLlvm
1059 = ([L noSrcSpan $ "Warning: -fllvm is incompatible with -fPIC and -"
1060 ++ "dynamic on this platform;\n ignoring -fllvm"],
1061 dflags1{ hscTarget = HscAsm })
1063 | otherwise = ([], dflags1)
1065 return (dflags2, leftover, pic_warns ++ warns)
1068 {- **********************************************************************
1070 DynFlags specifications
1072 %********************************************************************* -}
1074 allFlags :: [String]
1075 allFlags = map ('-':) $
1076 [ flagName flag | flag <- dynamic_flags, ok (flagOptKind flag) ] ++
1077 map ("fno-"++) flags ++
1078 map ("f"++) flags ++
1079 map ("f"++) flags' ++
1080 map ("X"++) supportedExtensions
1081 where ok (PrefixPred _ _) = False
1083 flags = [ name | (name, _, _) <- fFlags ]
1084 flags' = [ name | (name, _, _) <- fLangFlags ]
1086 --------------- The main flags themselves ------------------
1087 dynamic_flags :: [Flag (CmdLineP DynFlags)]
1089 Flag "n" (NoArg (setDynFlag Opt_DryRun))
1090 , Flag "cpp" (NoArg (setExtensionFlag Opt_Cpp))
1091 , Flag "F" (NoArg (setDynFlag Opt_Pp))
1093 (HasArg (\s -> do { addCmdlineHCInclude s
1094 ; addWarn "-#include and INCLUDE pragmas are deprecated: They no longer have any effect" }))
1095 , Flag "v" (OptIntSuffix setVerbosity)
1097 ------- Specific phases --------------------------------------------
1098 -- need to appear before -pgmL to be parsed as LLVM flags.
1099 , Flag "pgmlo" (hasArg (\f d -> d{ pgm_lo = (f,[])}))
1100 , Flag "pgmlc" (hasArg (\f d -> d{ pgm_lc = (f,[])}))
1101 , Flag "pgmL" (hasArg (\f d -> d{ pgm_L = f}))
1102 , Flag "pgmP" (hasArg setPgmP)
1103 , Flag "pgmF" (hasArg (\f d -> d{ pgm_F = f}))
1104 , Flag "pgmc" (hasArg (\f d -> d{ pgm_c = (f,[])}))
1105 , Flag "pgmm" (HasArg (\_ -> addWarn "The -keep-raw-s-files flag does nothing; it will be removed in a future GHC release"))
1106 , Flag "pgms" (hasArg (\f d -> d{ pgm_s = (f,[])}))
1107 , Flag "pgma" (hasArg (\f d -> d{ pgm_a = (f,[])}))
1108 , Flag "pgml" (hasArg (\f d -> d{ pgm_l = (f,[])}))
1109 , Flag "pgmdll" (hasArg (\f d -> d{ pgm_dll = (f,[])}))
1110 , Flag "pgmwindres" (hasArg (\f d -> d{ pgm_windres = f}))
1112 -- need to appear before -optl/-opta to be parsed as LLVM flags.
1113 , Flag "optlo" (hasArg (\f d -> d{ opt_lo = f : opt_lo d}))
1114 , Flag "optlc" (hasArg (\f d -> d{ opt_lc = f : opt_lc d}))
1115 , Flag "optL" (hasArg (\f d -> d{ opt_L = f : opt_L d}))
1116 , Flag "optP" (hasArg addOptP)
1117 , Flag "optF" (hasArg (\f d -> d{ opt_F = f : opt_F d}))
1118 , Flag "optc" (hasArg (\f d -> d{ opt_c = f : opt_c d}))
1119 , Flag "optm" (hasArg (\f d -> d{ opt_m = f : opt_m d}))
1120 , Flag "opta" (hasArg (\f d -> d{ opt_a = f : opt_a d}))
1121 , Flag "optl" (hasArg addOptl)
1122 , Flag "optwindres" (hasArg (\f d -> d{ opt_windres = f : opt_windres d}))
1125 (NoArg (if can_split
1126 then setDynFlag Opt_SplitObjs
1127 else addWarn "ignoring -fsplit-objs"))
1129 -------- ghc -M -----------------------------------------------------
1130 , Flag "dep-suffix" (hasArg addDepSuffix)
1131 , Flag "optdep-s" (hasArgDF addDepSuffix "Use -dep-suffix instead")
1132 , Flag "dep-makefile" (hasArg setDepMakefile)
1133 , Flag "optdep-f" (hasArgDF setDepMakefile "Use -dep-makefile instead")
1134 , Flag "optdep-w" (NoArg (deprecate "doesn't do anything"))
1135 , Flag "include-pkg-deps" (noArg (setDepIncludePkgDeps True))
1136 , Flag "optdep--include-prelude" (noArgDF (setDepIncludePkgDeps True) "Use -include-pkg-deps instead")
1137 , Flag "optdep--include-pkg-deps" (noArgDF (setDepIncludePkgDeps True) "Use -include-pkg-deps instead")
1138 , Flag "exclude-module" (hasArg addDepExcludeMod)
1139 , Flag "optdep--exclude-module" (hasArgDF addDepExcludeMod "Use -exclude-module instead")
1140 , Flag "optdep-x" (hasArgDF addDepExcludeMod "Use -exclude-module instead")
1142 -------- Linking ----------------------------------------------------
1143 , Flag "no-link" (noArg (\d -> d{ ghcLink=NoLink }))
1144 , Flag "shared" (noArg (\d -> d{ ghcLink=LinkDynLib }))
1145 , Flag "dynload" (hasArg parseDynLibLoaderMode)
1146 , Flag "dylib-install-name" (hasArg setDylibInstallName)
1148 ------- Libraries ---------------------------------------------------
1149 , Flag "L" (Prefix addLibraryPath)
1150 , Flag "l" (AnySuffix (upd . addOptl))
1152 ------- Frameworks --------------------------------------------------
1153 -- -framework-path should really be -F ...
1154 , Flag "framework-path" (HasArg addFrameworkPath)
1155 , Flag "framework" (hasArg addCmdlineFramework)
1157 ------- Output Redirection ------------------------------------------
1158 , Flag "odir" (hasArg setObjectDir)
1159 , Flag "o" (SepArg (upd . setOutputFile . Just))
1160 , Flag "ohi" (hasArg (setOutputHi . Just ))
1161 , Flag "osuf" (hasArg setObjectSuf)
1162 , Flag "hcsuf" (hasArg setHcSuf)
1163 , Flag "hisuf" (hasArg setHiSuf)
1164 , Flag "hidir" (hasArg setHiDir)
1165 , Flag "tmpdir" (hasArg setTmpDir)
1166 , Flag "stubdir" (hasArg setStubDir)
1167 , Flag "outputdir" (hasArg setOutputDir)
1168 , Flag "ddump-file-prefix" (hasArg (setDumpPrefixForce . Just))
1170 ------- Keeping temporary files -------------------------------------
1171 -- These can be singular (think ghc -c) or plural (think ghc --make)
1172 , Flag "keep-hc-file" (NoArg (setDynFlag Opt_KeepHcFiles))
1173 , Flag "keep-hc-files" (NoArg (setDynFlag Opt_KeepHcFiles))
1174 , Flag "keep-s-file" (NoArg (setDynFlag Opt_KeepSFiles))
1175 , Flag "keep-s-files" (NoArg (setDynFlag Opt_KeepSFiles))
1176 , Flag "keep-raw-s-file" (NoArg (addWarn "The -keep-raw-s-file flag does nothing; it will be removed in a future GHC release"))
1177 , Flag "keep-raw-s-files" (NoArg (addWarn "The -keep-raw-s-files flag does nothing; it will be removed in a future GHC release"))
1178 , Flag "keep-llvm-file" (NoArg (setDynFlag Opt_KeepLlvmFiles))
1179 , Flag "keep-llvm-files" (NoArg (setDynFlag Opt_KeepLlvmFiles))
1180 -- This only makes sense as plural
1181 , Flag "keep-tmp-files" (NoArg (setDynFlag Opt_KeepTmpFiles))
1183 ------- Miscellaneous ----------------------------------------------
1184 , Flag "no-auto-link-packages" (NoArg (unSetDynFlag Opt_AutoLinkPackages))
1185 , Flag "no-hs-main" (NoArg (setDynFlag Opt_NoHsMain))
1186 , Flag "with-rtsopts" (HasArg setRtsOpts)
1187 , Flag "rtsopts" (NoArg (setRtsOptsEnabled RtsOptsAll))
1188 , Flag "rtsopts=all" (NoArg (setRtsOptsEnabled RtsOptsAll))
1189 , Flag "rtsopts=some" (NoArg (setRtsOptsEnabled RtsOptsSafeOnly))
1190 , Flag "rtsopts=none" (NoArg (setRtsOptsEnabled RtsOptsNone))
1191 , Flag "no-rtsopts" (NoArg (setRtsOptsEnabled RtsOptsNone))
1192 , Flag "main-is" (SepArg setMainIs)
1193 , Flag "haddock" (NoArg (setDynFlag Opt_Haddock))
1194 , Flag "haddock-opts" (hasArg addHaddockOpts)
1195 , Flag "hpcdir" (SepArg setOptHpcDir)
1197 ------- recompilation checker --------------------------------------
1198 , Flag "recomp" (NoArg (do { unSetDynFlag Opt_ForceRecomp
1199 ; deprecate "Use -fno-force-recomp instead" }))
1200 , Flag "no-recomp" (NoArg (do { setDynFlag Opt_ForceRecomp
1201 ; deprecate "Use -fforce-recomp instead" }))
1203 ------ HsCpp opts ---------------------------------------------------
1204 , Flag "D" (AnySuffix (upd . addOptP))
1205 , Flag "U" (AnySuffix (upd . addOptP))
1207 ------- Include/Import Paths ----------------------------------------
1208 , Flag "I" (Prefix addIncludePath)
1209 , Flag "i" (OptPrefix addImportPath)
1211 ------ Debugging ----------------------------------------------------
1212 , Flag "dstg-stats" (NoArg (setDynFlag Opt_StgStats))
1214 , Flag "ddump-cmm" (setDumpFlag Opt_D_dump_cmm)
1215 , Flag "ddump-raw-cmm" (setDumpFlag Opt_D_dump_raw_cmm)
1216 , Flag "ddump-cmmz" (setDumpFlag Opt_D_dump_cmmz)
1217 , Flag "ddump-cmmz-pretty" (setDumpFlag Opt_D_dump_cmmz_pretty)
1218 , Flag "ddump-core-stats" (setDumpFlag Opt_D_dump_core_stats)
1219 , Flag "ddump-cps-cmm" (setDumpFlag Opt_D_dump_cps_cmm)
1220 , Flag "ddump-cvt-cmm" (setDumpFlag Opt_D_dump_cvt_cmm)
1221 , Flag "ddump-asm" (setDumpFlag Opt_D_dump_asm)
1222 , Flag "ddump-asm-native" (setDumpFlag Opt_D_dump_asm_native)
1223 , Flag "ddump-asm-liveness" (setDumpFlag Opt_D_dump_asm_liveness)
1224 , Flag "ddump-asm-coalesce" (setDumpFlag Opt_D_dump_asm_coalesce)
1225 , Flag "ddump-asm-regalloc" (setDumpFlag Opt_D_dump_asm_regalloc)
1226 , Flag "ddump-asm-conflicts" (setDumpFlag Opt_D_dump_asm_conflicts)
1227 , Flag "ddump-asm-regalloc-stages" (setDumpFlag Opt_D_dump_asm_regalloc_stages)
1228 , Flag "ddump-asm-stats" (setDumpFlag Opt_D_dump_asm_stats)
1229 , Flag "ddump-asm-expanded" (setDumpFlag Opt_D_dump_asm_expanded)
1230 , Flag "ddump-llvm" (NoArg (do { setObjTarget HscLlvm
1231 ; setDumpFlag' Opt_D_dump_llvm}))
1232 , Flag "ddump-cpranal" (setDumpFlag Opt_D_dump_cpranal)
1233 , Flag "ddump-deriv" (setDumpFlag Opt_D_dump_deriv)
1234 , Flag "ddump-ds" (setDumpFlag Opt_D_dump_ds)
1235 , Flag "ddump-flatC" (setDumpFlag Opt_D_dump_flatC)
1236 , Flag "ddump-foreign" (setDumpFlag Opt_D_dump_foreign)
1237 , Flag "ddump-inlinings" (setDumpFlag Opt_D_dump_inlinings)
1238 , Flag "ddump-rule-firings" (setDumpFlag Opt_D_dump_rule_firings)
1239 , Flag "ddump-rule-rewrites" (setDumpFlag Opt_D_dump_rule_rewrites)
1240 , Flag "ddump-occur-anal" (setDumpFlag Opt_D_dump_occur_anal)
1241 , Flag "ddump-parsed" (setDumpFlag Opt_D_dump_parsed)
1242 , Flag "ddump-rn" (setDumpFlag Opt_D_dump_rn)
1243 , Flag "ddump-simpl" (setDumpFlag Opt_D_dump_simpl)
1244 , Flag "ddump-simpl-iterations" (setDumpFlag Opt_D_dump_simpl_iterations)
1245 , Flag "ddump-simpl-phases" (OptPrefix setDumpSimplPhases)
1246 , Flag "ddump-spec" (setDumpFlag Opt_D_dump_spec)
1247 , Flag "ddump-prep" (setDumpFlag Opt_D_dump_prep)
1248 , Flag "ddump-stg" (setDumpFlag Opt_D_dump_stg)
1249 , Flag "ddump-stranal" (setDumpFlag Opt_D_dump_stranal)
1250 , Flag "ddump-tc" (setDumpFlag Opt_D_dump_tc)
1251 , Flag "ddump-types" (setDumpFlag Opt_D_dump_types)
1252 , Flag "ddump-rules" (setDumpFlag Opt_D_dump_rules)
1253 , Flag "ddump-cse" (setDumpFlag Opt_D_dump_cse)
1254 , Flag "ddump-worker-wrapper" (setDumpFlag Opt_D_dump_worker_wrapper)
1255 , Flag "ddump-rn-trace" (setDumpFlag Opt_D_dump_rn_trace)
1256 , Flag "ddump-if-trace" (setDumpFlag Opt_D_dump_if_trace)
1257 , Flag "ddump-cs-trace" (setDumpFlag Opt_D_dump_cs_trace)
1258 , Flag "ddump-tc-trace" (setDumpFlag Opt_D_dump_tc_trace)
1259 , Flag "ddump-vt-trace" (setDumpFlag Opt_D_dump_vt_trace)
1260 , Flag "ddump-splices" (setDumpFlag Opt_D_dump_splices)
1261 , Flag "ddump-rn-stats" (setDumpFlag Opt_D_dump_rn_stats)
1262 , Flag "ddump-opt-cmm" (setDumpFlag Opt_D_dump_opt_cmm)
1263 , Flag "ddump-simpl-stats" (setDumpFlag Opt_D_dump_simpl_stats)
1264 , Flag "ddump-bcos" (setDumpFlag Opt_D_dump_BCOs)
1265 , Flag "dsource-stats" (setDumpFlag Opt_D_source_stats)
1266 , Flag "dverbose-core2core" (NoArg (do { setVerbosity (Just 2)
1267 ; setVerboseCore2Core }))
1268 , Flag "dverbose-stg2stg" (setDumpFlag Opt_D_verbose_stg2stg)
1269 , Flag "ddump-hi" (setDumpFlag Opt_D_dump_hi)
1270 , Flag "ddump-minimal-imports" (setDumpFlag Opt_D_dump_minimal_imports)
1271 , Flag "ddump-vect" (setDumpFlag Opt_D_dump_vect)
1272 , Flag "ddump-hpc" (setDumpFlag Opt_D_dump_hpc)
1273 , Flag "ddump-mod-cycles" (setDumpFlag Opt_D_dump_mod_cycles)
1274 , Flag "ddump-view-pattern-commoning" (setDumpFlag Opt_D_dump_view_pattern_commoning)
1275 , Flag "ddump-to-file" (setDumpFlag Opt_DumpToFile)
1276 , Flag "ddump-hi-diffs" (setDumpFlag Opt_D_dump_hi_diffs)
1277 , Flag "ddump-rtti" (setDumpFlag Opt_D_dump_rtti)
1278 , Flag "dcore-lint" (NoArg (setDynFlag Opt_DoCoreLinting))
1279 , Flag "dstg-lint" (NoArg (setDynFlag Opt_DoStgLinting))
1280 , Flag "dcmm-lint" (NoArg (setDynFlag Opt_DoCmmLinting))
1281 , Flag "dasm-lint" (NoArg (setDynFlag Opt_DoAsmLinting))
1282 , Flag "dshow-passes" (NoArg (do forceRecompile
1283 setVerbosity (Just 2)))
1284 , Flag "dfaststring-stats" (NoArg (setDynFlag Opt_D_faststring_stats))
1286 ------ Machine dependant (-m<blah>) stuff ---------------------------
1288 , Flag "monly-2-regs" (NoArg (addWarn "The -monly-2-regs flag does nothing; it will be removed in a future GHC release"))
1289 , Flag "monly-3-regs" (NoArg (addWarn "The -monly-3-regs flag does nothing; it will be removed in a future GHC release"))
1290 , Flag "monly-4-regs" (NoArg (addWarn "The -monly-4-regs flag does nothing; it will be removed in a future GHC release"))
1291 , Flag "msse2" (NoArg (setDynFlag Opt_SSE2))
1293 ------ Warning opts -------------------------------------------------
1294 , Flag "W" (NoArg (mapM_ setDynFlag minusWOpts))
1295 , Flag "Werror" (NoArg (setDynFlag Opt_WarnIsError))
1296 , Flag "Wwarn" (NoArg (unSetDynFlag Opt_WarnIsError))
1297 , Flag "Wall" (NoArg (mapM_ setDynFlag minusWallOpts))
1298 , Flag "Wnot" (NoArg (do { mapM_ unSetDynFlag minusWallOpts
1299 ; deprecate "Use -w instead" }))
1300 , Flag "w" (NoArg (mapM_ unSetDynFlag minuswRemovesOpts))
1302 ------ Optimisation flags ------------------------------------------
1303 , Flag "O" (noArg (setOptLevel 1))
1304 , Flag "Onot" (noArgDF (setOptLevel 0) "Use -O0 instead")
1305 , Flag "Odph" (noArg setDPHOpt)
1306 , Flag "O" (OptIntSuffix (\mb_n -> upd (setOptLevel (mb_n `orElse` 1))))
1307 -- If the number is missing, use 1
1309 , Flag "fsimplifier-phases" (intSuffix (\n d -> d{ simplPhases = n }))
1310 , Flag "fmax-simplifier-iterations" (intSuffix (\n d -> d{ maxSimplIterations = n }))
1311 , Flag "fspec-constr-threshold" (intSuffix (\n d -> d{ specConstrThreshold = Just n }))
1312 , Flag "fno-spec-constr-threshold" (noArg (\d -> d{ specConstrThreshold = Nothing }))
1313 , Flag "fspec-constr-count" (intSuffix (\n d -> d{ specConstrCount = Just n }))
1314 , Flag "fno-spec-constr-count" (noArg (\d -> d{ specConstrCount = Nothing }))
1315 , Flag "fliberate-case-threshold" (intSuffix (\n d -> d{ liberateCaseThreshold = Just n }))
1316 , Flag "fno-liberate-case-threshold" (noArg (\d -> d{ liberateCaseThreshold = Nothing }))
1317 , Flag "frule-check" (SepArg (\s -> upd (\d -> d{ ruleCheck = Just s })))
1318 , Flag "fcontext-stack" (intSuffix (\n d -> d{ ctxtStkDepth = n }))
1319 , Flag "fstrictness-before" (intSuffix (\n d -> d{ strictnessBefore = n : strictnessBefore d }))
1320 , Flag "ffloat-lam-args" (intSuffix (\n d -> d{ floatLamArgs = Just n }))
1321 , Flag "ffloat-all-lams" (intSuffix (\n d -> d{ floatLamArgs = Nothing }))
1323 ------ Profiling ----------------------------------------------------
1325 -- XXX Should the -f* flags be deprecated?
1326 -- They don't seem to be documented
1327 , Flag "fauto-sccs-on-all-toplevs" (NoArg (setDynFlag Opt_AutoSccsOnAllToplevs))
1328 , Flag "auto-all" (NoArg (setDynFlag Opt_AutoSccsOnAllToplevs))
1329 , Flag "no-auto-all" (NoArg (unSetDynFlag Opt_AutoSccsOnAllToplevs))
1330 , Flag "fauto-sccs-on-exported-toplevs" (NoArg (setDynFlag Opt_AutoSccsOnExportedToplevs))
1331 , Flag "auto" (NoArg (setDynFlag Opt_AutoSccsOnExportedToplevs))
1332 , Flag "no-auto" (NoArg (unSetDynFlag Opt_AutoSccsOnExportedToplevs))
1333 , Flag "fauto-sccs-on-individual-cafs" (NoArg (setDynFlag Opt_AutoSccsOnIndividualCafs))
1334 , Flag "caf-all" (NoArg (setDynFlag Opt_AutoSccsOnIndividualCafs))
1335 , Flag "no-caf-all" (NoArg (unSetDynFlag Opt_AutoSccsOnIndividualCafs))
1337 ------ DPH flags ----------------------------------------------------
1339 , Flag "fdph-seq" (NoArg (setDPHBackend DPHSeq))
1340 , Flag "fdph-par" (NoArg (setDPHBackend DPHPar))
1341 , Flag "fdph-this" (NoArg (setDPHBackend DPHThis))
1342 , Flag "fdph-none" (NoArg (setDPHBackend DPHNone))
1344 ------ Compiler flags -----------------------------------------------
1346 , Flag "fasm" (NoArg (setObjTarget HscAsm))
1347 , Flag "fvia-c" (NoArg
1348 (addWarn "The -fvia-c flag does nothing; it will be removed in a future GHC release"))
1349 , Flag "fvia-C" (NoArg
1350 (addWarn "The -fvia-C flag does nothing; it will be removed in a future GHC release"))
1351 , Flag "fllvm" (NoArg (setObjTarget HscLlvm))
1353 , Flag "fno-code" (NoArg (do upd $ \d -> d{ ghcLink=NoLink }
1354 setTarget HscNothing))
1355 , Flag "fbyte-code" (NoArg (setTarget HscInterpreted))
1356 , Flag "fobject-code" (NoArg (setTarget defaultHscTarget))
1357 , Flag "fglasgow-exts" (NoArg (enableGlasgowExts >> deprecate "Use individual extensions instead"))
1358 , Flag "fno-glasgow-exts" (NoArg (disableGlasgowExts >> deprecate "Use individual extensions instead"))
1360 ++ map (mkFlag turnOn "f" setDynFlag ) fFlags
1361 ++ map (mkFlag turnOff "fno-" unSetDynFlag) fFlags
1362 ++ map (mkFlag turnOn "f" setExtensionFlag ) fLangFlags
1363 ++ map (mkFlag turnOff "fno-" unSetExtensionFlag) fLangFlags
1364 ++ map (mkFlag turnOn "X" setExtensionFlag ) xFlags
1365 ++ map (mkFlag turnOff "XNo" unSetExtensionFlag) xFlags
1366 ++ map (mkFlag turnOn "X" setLanguage) languageFlags
1368 package_flags :: [Flag (CmdLineP DynFlags)]
1370 ------- Packages ----------------------------------------------------
1371 Flag "package-conf" (HasArg extraPkgConf_)
1372 , Flag "no-user-package-conf" (NoArg (unSetDynFlag Opt_ReadUserPackageConf))
1373 , Flag "package-name" (hasArg setPackageName)
1374 , Flag "package-id" (HasArg exposePackageId)
1375 , Flag "package" (HasArg exposePackage)
1376 , Flag "hide-package" (HasArg hidePackage)
1377 , Flag "hide-all-packages" (NoArg (setDynFlag Opt_HideAllPackages))
1378 , Flag "ignore-package" (HasArg ignorePackage)
1379 , Flag "syslib" (HasArg (\s -> do { exposePackage s
1380 ; deprecate "Use -package instead" }))
1383 type TurnOnFlag = Bool -- True <=> we are turning the flag on
1384 -- False <=> we are turning the flag off
1385 turnOn :: TurnOnFlag; turnOn = True
1386 turnOff :: TurnOnFlag; turnOff = False
1389 = ( String -- Flag in string form
1390 , flag -- Flag in internal form
1391 , TurnOnFlag -> DynP ()) -- Extra action to run when the flag is found
1392 -- Typically, emit a warning or error
1394 mkFlag :: TurnOnFlag -- ^ True <=> it should be turned on
1395 -> String -- ^ The flag prefix
1396 -> (flag -> DynP ()) -- ^ What to do when the flag is found
1397 -> FlagSpec flag -- ^ Specification of this particular flag
1398 -> Flag (CmdLineP DynFlags)
1399 mkFlag turn_on flagPrefix f (name, flag, extra_action)
1400 = Flag (flagPrefix ++ name) (NoArg (f flag >> extra_action turn_on))
1402 deprecatedForExtension :: String -> TurnOnFlag -> DynP ()
1403 deprecatedForExtension lang turn_on
1404 = deprecate ("use -X" ++ flag ++ " or pragma {-# LANGUAGE " ++ flag ++ " #-} instead")
1406 flag | turn_on = lang
1407 | otherwise = "No"++lang
1409 useInstead :: String -> TurnOnFlag -> DynP ()
1410 useInstead flag turn_on
1411 = deprecate ("Use -f" ++ no ++ flag ++ " instead")
1413 no = if turn_on then "" else "no-"
1415 nop :: TurnOnFlag -> DynP ()
1418 -- | These @-f\<blah\>@ flags can all be reversed with @-fno-\<blah\>@
1419 fFlags :: [FlagSpec DynFlag]
1421 ( "warn-dodgy-foreign-imports", Opt_WarnDodgyForeignImports, nop ),
1422 ( "warn-dodgy-exports", Opt_WarnDodgyExports, nop ),
1423 ( "warn-dodgy-imports", Opt_WarnDodgyImports, nop ),
1424 ( "warn-duplicate-exports", Opt_WarnDuplicateExports, nop ),
1425 ( "warn-hi-shadowing", Opt_WarnHiShadows, nop ),
1426 ( "warn-implicit-prelude", Opt_WarnImplicitPrelude, nop ),
1427 ( "warn-incomplete-patterns", Opt_WarnIncompletePatterns, nop ),
1428 ( "warn-incomplete-uni-patterns", Opt_WarnIncompleteUniPatterns, nop ),
1429 ( "warn-incomplete-record-updates", Opt_WarnIncompletePatternsRecUpd, nop ),
1430 ( "warn-missing-fields", Opt_WarnMissingFields, nop ),
1431 ( "warn-missing-import-lists", Opt_WarnMissingImportList, nop ),
1432 ( "warn-missing-methods", Opt_WarnMissingMethods, nop ),
1433 ( "warn-missing-signatures", Opt_WarnMissingSigs, nop ),
1434 ( "warn-missing-local-sigs", Opt_WarnMissingLocalSigs, nop ),
1435 ( "warn-name-shadowing", Opt_WarnNameShadowing, nop ),
1436 ( "warn-overlapping-patterns", Opt_WarnOverlappingPatterns, nop ),
1437 ( "warn-type-defaults", Opt_WarnTypeDefaults, nop ),
1438 ( "warn-monomorphism-restriction", Opt_WarnMonomorphism, nop ),
1439 ( "warn-unused-binds", Opt_WarnUnusedBinds, nop ),
1440 ( "warn-unused-imports", Opt_WarnUnusedImports, nop ),
1441 ( "warn-unused-matches", Opt_WarnUnusedMatches, nop ),
1442 ( "warn-warnings-deprecations", Opt_WarnWarningsDeprecations, nop ),
1443 ( "warn-deprecations", Opt_WarnWarningsDeprecations, nop ),
1444 ( "warn-deprecated-flags", Opt_WarnDeprecatedFlags, nop ),
1445 ( "warn-orphans", Opt_WarnOrphans, nop ),
1446 ( "warn-identities", Opt_WarnIdentities, nop ),
1447 ( "warn-auto-orphans", Opt_WarnAutoOrphans, nop ),
1448 ( "warn-tabs", Opt_WarnTabs, nop ),
1449 ( "warn-unrecognised-pragmas", Opt_WarnUnrecognisedPragmas, nop ),
1450 ( "warn-lazy-unlifted-bindings", Opt_WarnLazyUnliftedBindings, nop),
1451 ( "warn-unused-do-bind", Opt_WarnUnusedDoBind, nop ),
1452 ( "warn-wrong-do-bind", Opt_WarnWrongDoBind, nop ),
1453 ( "warn-alternative-layout-rule-transitional", Opt_WarnAlternativeLayoutRuleTransitional, nop ),
1454 ( "print-explicit-foralls", Opt_PrintExplicitForalls, nop ),
1455 ( "strictness", Opt_Strictness, nop ),
1456 ( "specialise", Opt_Specialise, nop ),
1457 ( "float-in", Opt_FloatIn, nop ),
1458 ( "static-argument-transformation", Opt_StaticArgumentTransformation, nop ),
1459 ( "full-laziness", Opt_FullLaziness, nop ),
1460 ( "liberate-case", Opt_LiberateCase, nop ),
1461 ( "spec-constr", Opt_SpecConstr, nop ),
1462 ( "cse", Opt_CSE, nop ),
1463 ( "ignore-interface-pragmas", Opt_IgnoreInterfacePragmas, nop ),
1464 ( "omit-interface-pragmas", Opt_OmitInterfacePragmas, nop ),
1465 ( "expose-all-unfoldings", Opt_ExposeAllUnfoldings, nop ),
1466 ( "do-lambda-eta-expansion", Opt_DoLambdaEtaExpansion, nop ),
1467 ( "ignore-asserts", Opt_IgnoreAsserts, nop ),
1468 ( "do-eta-reduction", Opt_DoEtaReduction, nop ),
1469 ( "case-merge", Opt_CaseMerge, nop ),
1470 ( "unbox-strict-fields", Opt_UnboxStrictFields, nop ),
1471 ( "method-sharing", Opt_MethodSharing,
1472 \_ -> deprecate "doesn't do anything any more"),
1473 -- Remove altogether in GHC 7.2
1474 ( "dicts-cheap", Opt_DictsCheap, nop ),
1475 ( "excess-precision", Opt_ExcessPrecision, nop ),
1476 ( "eager-blackholing", Opt_EagerBlackHoling, nop ),
1477 ( "print-bind-result", Opt_PrintBindResult, nop ),
1478 ( "force-recomp", Opt_ForceRecomp, nop ),
1479 ( "hpc-no-auto", Opt_Hpc_No_Auto, nop ),
1480 ( "rewrite-rules", Opt_EnableRewriteRules, useInstead "enable-rewrite-rules" ),
1481 ( "enable-rewrite-rules", Opt_EnableRewriteRules, nop ),
1482 ( "break-on-exception", Opt_BreakOnException, nop ),
1483 ( "break-on-error", Opt_BreakOnError, nop ),
1484 ( "print-evld-with-show", Opt_PrintEvldWithShow, nop ),
1485 ( "print-bind-contents", Opt_PrintBindContents, nop ),
1486 ( "run-cps", Opt_RunCPS, nop ),
1487 ( "run-cpsz", Opt_RunCPSZ, nop ),
1488 ( "new-codegen", Opt_TryNewCodeGen, nop ),
1489 ( "convert-to-zipper-and-back", Opt_ConvertToZipCfgAndBack, nop ),
1490 ( "vectorise", Opt_Vectorise, nop ),
1491 ( "regs-graph", Opt_RegsGraph, nop ),
1492 ( "regs-iterative", Opt_RegsIterative, nop ),
1493 ( "gen-manifest", Opt_GenManifest, nop ),
1494 ( "embed-manifest", Opt_EmbedManifest, nop ),
1495 ( "ext-core", Opt_EmitExternalCore, nop ),
1496 ( "shared-implib", Opt_SharedImplib, nop ),
1497 ( "ghci-sandbox", Opt_GhciSandbox, nop ),
1498 ( "helpful-errors", Opt_HelpfulErrors, nop ),
1499 ( "building-cabal-package", Opt_BuildingCabalPackage, nop ),
1500 ( "implicit-import-qualified", Opt_ImplicitImportQualified, nop )
1503 -- | These @-f\<blah\>@ flags can all be reversed with @-fno-\<blah\>@
1504 fLangFlags :: [FlagSpec ExtensionFlag]
1506 ( "th", Opt_TemplateHaskell,
1507 deprecatedForExtension "TemplateHaskell" >> checkTemplateHaskellOk ),
1508 ( "fi", Opt_ForeignFunctionInterface,
1509 deprecatedForExtension "ForeignFunctionInterface" ),
1510 ( "ffi", Opt_ForeignFunctionInterface,
1511 deprecatedForExtension "ForeignFunctionInterface" ),
1512 ( "arrows", Opt_Arrows,
1513 deprecatedForExtension "Arrows" ),
1514 ( "generics", Opt_Generics,
1515 deprecatedForExtension "Generics" ),
1516 ( "implicit-prelude", Opt_ImplicitPrelude,
1517 deprecatedForExtension "ImplicitPrelude" ),
1518 ( "bang-patterns", Opt_BangPatterns,
1519 deprecatedForExtension "BangPatterns" ),
1520 ( "monomorphism-restriction", Opt_MonomorphismRestriction,
1521 deprecatedForExtension "MonomorphismRestriction" ),
1522 ( "mono-pat-binds", Opt_MonoPatBinds,
1523 deprecatedForExtension "MonoPatBinds" ),
1524 ( "extended-default-rules", Opt_ExtendedDefaultRules,
1525 deprecatedForExtension "ExtendedDefaultRules" ),
1526 ( "implicit-params", Opt_ImplicitParams,
1527 deprecatedForExtension "ImplicitParams" ),
1528 ( "scoped-type-variables", Opt_ScopedTypeVariables,
1529 deprecatedForExtension "ScopedTypeVariables" ),
1530 ( "parr", Opt_ParallelArrays,
1531 deprecatedForExtension "ParallelArrays" ),
1532 ( "PArr", Opt_ParallelArrays,
1533 deprecatedForExtension "ParallelArrays" ),
1534 ( "allow-overlapping-instances", Opt_OverlappingInstances,
1535 deprecatedForExtension "OverlappingInstances" ),
1536 ( "allow-undecidable-instances", Opt_UndecidableInstances,
1537 deprecatedForExtension "UndecidableInstances" ),
1538 ( "allow-incoherent-instances", Opt_IncoherentInstances,
1539 deprecatedForExtension "IncoherentInstances" )
1542 supportedLanguages :: [String]
1543 supportedLanguages = [ name | (name, _, _) <- languageFlags ]
1545 supportedExtensions :: [String]
1546 supportedExtensions = [ name' | (name, _, _) <- xFlags, name' <- [name, "No" ++ name] ]
1548 supportedLanguagesAndExtensions :: [String]
1549 supportedLanguagesAndExtensions = supportedLanguages ++ supportedExtensions
1551 -- | These -X<blah> flags cannot be reversed with -XNo<blah>
1552 languageFlags :: [FlagSpec Language]
1554 ( "Haskell98", Haskell98, nop ),
1555 ( "Haskell2010", Haskell2010, nop )
1558 -- | These -X<blah> flags can all be reversed with -XNo<blah>
1559 xFlags :: [FlagSpec ExtensionFlag]
1561 ( "CPP", Opt_Cpp, nop ),
1562 ( "PostfixOperators", Opt_PostfixOperators, nop ),
1563 ( "TupleSections", Opt_TupleSections, nop ),
1564 ( "PatternGuards", Opt_PatternGuards, nop ),
1565 ( "UnicodeSyntax", Opt_UnicodeSyntax, nop ),
1566 ( "MagicHash", Opt_MagicHash, nop ),
1567 ( "PolymorphicComponents", Opt_PolymorphicComponents, nop ),
1568 ( "ExistentialQuantification", Opt_ExistentialQuantification, nop ),
1569 ( "KindSignatures", Opt_KindSignatures, nop ),
1570 ( "EmptyDataDecls", Opt_EmptyDataDecls, nop ),
1571 ( "ParallelListComp", Opt_ParallelListComp, nop ),
1572 ( "TransformListComp", Opt_TransformListComp, nop ),
1573 ( "MonadComprehensions", Opt_MonadComprehensions, nop),
1574 ( "ForeignFunctionInterface", Opt_ForeignFunctionInterface, nop ),
1575 ( "UnliftedFFITypes", Opt_UnliftedFFITypes, nop ),
1576 ( "GHCForeignImportPrim", Opt_GHCForeignImportPrim, nop ),
1577 ( "LiberalTypeSynonyms", Opt_LiberalTypeSynonyms, nop ),
1578 ( "Rank2Types", Opt_Rank2Types, nop ),
1579 ( "RankNTypes", Opt_RankNTypes, nop ),
1580 ( "ImpredicativeTypes", Opt_ImpredicativeTypes, nop),
1581 ( "TypeOperators", Opt_TypeOperators, nop ),
1582 ( "RecursiveDo", Opt_RecursiveDo,
1583 deprecatedForExtension "DoRec"),
1584 ( "DoRec", Opt_DoRec, nop ),
1585 ( "Arrows", Opt_Arrows, nop ),
1586 ( "ParallelArrays", Opt_ParallelArrays, nop ),
1587 ( "TemplateHaskell", Opt_TemplateHaskell, checkTemplateHaskellOk ),
1588 ( "QuasiQuotes", Opt_QuasiQuotes, nop ),
1589 ( "Generics", Opt_Generics, nop ),
1590 ( "ImplicitPrelude", Opt_ImplicitPrelude, nop ),
1591 ( "RecordWildCards", Opt_RecordWildCards, nop ),
1592 ( "NamedFieldPuns", Opt_RecordPuns, nop ),
1593 ( "RecordPuns", Opt_RecordPuns,
1594 deprecatedForExtension "NamedFieldPuns" ),
1595 ( "DisambiguateRecordFields", Opt_DisambiguateRecordFields, nop ),
1596 ( "OverloadedStrings", Opt_OverloadedStrings, nop ),
1597 ( "GADTs", Opt_GADTs, nop ),
1598 ( "GADTSyntax", Opt_GADTSyntax, nop ),
1599 ( "ViewPatterns", Opt_ViewPatterns, nop ),
1600 ( "TypeFamilies", Opt_TypeFamilies, nop ),
1601 ( "BangPatterns", Opt_BangPatterns, nop ),
1602 ( "MonomorphismRestriction", Opt_MonomorphismRestriction, nop ),
1603 ( "NPlusKPatterns", Opt_NPlusKPatterns, nop ),
1604 ( "DoAndIfThenElse", Opt_DoAndIfThenElse, nop ),
1605 ( "RebindableSyntax", Opt_RebindableSyntax, nop ),
1606 ( "MonoPatBinds", Opt_MonoPatBinds, nop ),
1607 ( "ExplicitForAll", Opt_ExplicitForAll, nop ),
1608 ( "AlternativeLayoutRule", Opt_AlternativeLayoutRule, nop ),
1609 ( "AlternativeLayoutRuleTransitional",Opt_AlternativeLayoutRuleTransitional, nop ),
1610 ( "DatatypeContexts", Opt_DatatypeContexts, nop ),
1611 ( "NondecreasingIndentation", Opt_NondecreasingIndentation, nop ),
1612 ( "RelaxedLayout", Opt_RelaxedLayout, nop ),
1613 ( "MonoLocalBinds", Opt_MonoLocalBinds, nop ),
1614 ( "RelaxedPolyRec", Opt_RelaxedPolyRec,
1615 \ turn_on -> if not turn_on
1616 then deprecate "You can't turn off RelaxedPolyRec any more"
1618 ( "ExtendedDefaultRules", Opt_ExtendedDefaultRules, nop ),
1619 ( "ImplicitParams", Opt_ImplicitParams, nop ),
1620 ( "ScopedTypeVariables", Opt_ScopedTypeVariables, nop ),
1622 ( "PatternSignatures", Opt_ScopedTypeVariables,
1623 deprecatedForExtension "ScopedTypeVariables" ),
1625 ( "UnboxedTuples", Opt_UnboxedTuples, nop ),
1626 ( "StandaloneDeriving", Opt_StandaloneDeriving, nop ),
1627 ( "DeriveDataTypeable", Opt_DeriveDataTypeable, nop ),
1628 ( "DeriveFunctor", Opt_DeriveFunctor, nop ),
1629 ( "DeriveTraversable", Opt_DeriveTraversable, nop ),
1630 ( "DeriveFoldable", Opt_DeriveFoldable, nop ),
1631 ( "TypeSynonymInstances", Opt_TypeSynonymInstances, nop ),
1632 ( "FlexibleContexts", Opt_FlexibleContexts, nop ),
1633 ( "FlexibleInstances", Opt_FlexibleInstances, nop ),
1634 ( "ConstrainedClassMethods", Opt_ConstrainedClassMethods, nop ),
1635 ( "MultiParamTypeClasses", Opt_MultiParamTypeClasses, nop ),
1636 ( "FunctionalDependencies", Opt_FunctionalDependencies, nop ),
1637 ( "GeneralizedNewtypeDeriving", Opt_GeneralizedNewtypeDeriving, nop ),
1638 ( "OverlappingInstances", Opt_OverlappingInstances, nop ),
1639 ( "UndecidableInstances", Opt_UndecidableInstances, nop ),
1640 ( "IncoherentInstances", Opt_IncoherentInstances, nop ),
1641 ( "PackageImports", Opt_PackageImports, nop )
1644 defaultFlags :: [DynFlag]
1646 = [ Opt_AutoLinkPackages,
1647 Opt_ReadUserPackageConf,
1651 #if GHC_DEFAULT_NEW_CODEGEN
1657 Opt_PrintBindContents,
1662 ++ [f | (ns,f) <- optLevelFlags, 0 `elem` ns]
1663 -- The default -O0 options
1667 impliedFlags :: [(ExtensionFlag, TurnOnFlag, ExtensionFlag)]
1669 = [ (Opt_RankNTypes, turnOn, Opt_ExplicitForAll)
1670 , (Opt_Rank2Types, turnOn, Opt_ExplicitForAll)
1671 , (Opt_ScopedTypeVariables, turnOn, Opt_ExplicitForAll)
1672 , (Opt_LiberalTypeSynonyms, turnOn, Opt_ExplicitForAll)
1673 , (Opt_ExistentialQuantification, turnOn, Opt_ExplicitForAll)
1674 , (Opt_PolymorphicComponents, turnOn, Opt_ExplicitForAll)
1675 , (Opt_FlexibleInstances, turnOn, Opt_TypeSynonymInstances)
1676 , (Opt_FunctionalDependencies, turnOn, Opt_MultiParamTypeClasses)
1678 , (Opt_RebindableSyntax, turnOff, Opt_ImplicitPrelude) -- NB: turn off!
1680 , (Opt_GADTs, turnOn, Opt_GADTSyntax)
1681 , (Opt_GADTs, turnOn, Opt_MonoLocalBinds)
1682 , (Opt_TypeFamilies, turnOn, Opt_MonoLocalBinds)
1684 , (Opt_TypeFamilies, turnOn, Opt_KindSignatures) -- Type families use kind signatures
1685 -- all over the place
1687 , (Opt_ImpredicativeTypes, turnOn, Opt_RankNTypes)
1689 -- Record wild-cards implies field disambiguation
1690 -- Otherwise if you write (C {..}) you may well get
1691 -- stuff like " 'a' not in scope ", which is a bit silly
1692 -- if the compiler has just filled in field 'a' of constructor 'C'
1693 , (Opt_RecordWildCards, turnOn, Opt_DisambiguateRecordFields)
1695 , (Opt_ParallelArrays, turnOn, Opt_ParallelListComp)
1698 optLevelFlags :: [([Int], DynFlag)]
1700 = [ ([0], Opt_IgnoreInterfacePragmas)
1701 , ([0], Opt_OmitInterfacePragmas)
1703 , ([1,2], Opt_IgnoreAsserts)
1704 , ([1,2], Opt_EnableRewriteRules) -- Off for -O0; see Note [Scoping for Builtin rules]
1706 , ([1,2], Opt_DoEtaReduction)
1707 , ([1,2], Opt_CaseMerge)
1708 , ([1,2], Opt_Strictness)
1710 , ([1,2], Opt_FullLaziness)
1711 , ([1,2], Opt_Specialise)
1712 , ([1,2], Opt_FloatIn)
1714 , ([2], Opt_LiberateCase)
1715 , ([2], Opt_SpecConstr)
1716 , ([2], Opt_RegsGraph)
1718 -- , ([2], Opt_StaticArgumentTransformation)
1719 -- Max writes: I think it's probably best not to enable SAT with -O2 for the
1720 -- 6.10 release. The version of SAT in HEAD at the moment doesn't incorporate
1721 -- several improvements to the heuristics, and I'm concerned that without
1722 -- those changes SAT will interfere with some attempts to write "high
1723 -- performance Haskell", as we saw in some posts on Haskell-Cafe earlier
1724 -- this year. In particular, the version in HEAD lacks the tail call
1725 -- criterion, so many things that look like reasonable loops will be
1726 -- turned into functions with extra (unneccesary) thunk creation.
1728 , ([0,1,2], Opt_DoLambdaEtaExpansion)
1729 -- This one is important for a tiresome reason:
1730 -- we want to make sure that the bindings for data
1731 -- constructors are eta-expanded. This is probably
1732 -- a good thing anyway, but it seems fragile.
1735 -- -----------------------------------------------------------------------------
1736 -- Standard sets of warning options
1738 standardWarnings :: [DynFlag]
1740 = [ Opt_WarnWarningsDeprecations,
1741 Opt_WarnDeprecatedFlags,
1742 Opt_WarnUnrecognisedPragmas,
1743 Opt_WarnOverlappingPatterns,
1744 Opt_WarnMissingFields,
1745 Opt_WarnMissingMethods,
1746 Opt_WarnDuplicateExports,
1747 Opt_WarnLazyUnliftedBindings,
1748 Opt_WarnDodgyForeignImports,
1749 Opt_WarnWrongDoBind,
1750 Opt_WarnAlternativeLayoutRuleTransitional
1753 minusWOpts :: [DynFlag]
1754 -- Things you get with -W
1756 = standardWarnings ++
1757 [ Opt_WarnUnusedBinds,
1758 Opt_WarnUnusedMatches,
1759 Opt_WarnUnusedImports,
1760 Opt_WarnIncompletePatterns,
1761 Opt_WarnDodgyExports,
1762 Opt_WarnDodgyImports
1765 minusWallOpts :: [DynFlag]
1766 -- Things you get with -Wall
1769 [ Opt_WarnTypeDefaults,
1770 Opt_WarnNameShadowing,
1771 Opt_WarnMissingSigs,
1774 Opt_WarnUnusedDoBind
1777 minuswRemovesOpts :: [DynFlag]
1778 -- minuswRemovesOpts should be every warning option
1782 Opt_WarnIncompletePatternsRecUpd,
1783 Opt_WarnIncompleteUniPatterns,
1784 Opt_WarnMonomorphism,
1785 Opt_WarnUnrecognisedPragmas,
1786 Opt_WarnAutoOrphans,
1787 Opt_WarnImplicitPrelude
1790 enableGlasgowExts :: DynP ()
1791 enableGlasgowExts = do setDynFlag Opt_PrintExplicitForalls
1792 mapM_ setExtensionFlag glasgowExtsFlags
1794 disableGlasgowExts :: DynP ()
1795 disableGlasgowExts = do unSetDynFlag Opt_PrintExplicitForalls
1796 mapM_ unSetExtensionFlag glasgowExtsFlags
1798 glasgowExtsFlags :: [ExtensionFlag]
1799 glasgowExtsFlags = [
1800 Opt_ForeignFunctionInterface
1801 , Opt_UnliftedFFITypes
1802 , Opt_ImplicitParams
1803 , Opt_ScopedTypeVariables
1805 , Opt_TypeSynonymInstances
1806 , Opt_StandaloneDeriving
1807 , Opt_DeriveDataTypeable
1809 , Opt_DeriveFoldable
1810 , Opt_DeriveTraversable
1811 , Opt_FlexibleContexts
1812 , Opt_FlexibleInstances
1813 , Opt_ConstrainedClassMethods
1814 , Opt_MultiParamTypeClasses
1815 , Opt_FunctionalDependencies
1817 , Opt_PolymorphicComponents
1818 , Opt_ExistentialQuantification
1820 , Opt_PostfixOperators
1822 , Opt_LiberalTypeSynonyms
1826 , Opt_ParallelListComp
1827 , Opt_EmptyDataDecls
1828 , Opt_KindSignatures
1829 , Opt_GeneralizedNewtypeDeriving ]
1832 -- Consult the RTS to find whether GHC itself has been built profiled
1833 -- If so, you can't use Template Haskell
1834 foreign import ccall unsafe "rts_isProfiled" rtsIsProfiledIO :: IO CInt
1836 rtsIsProfiled :: Bool
1837 rtsIsProfiled = unsafePerformIO rtsIsProfiledIO /= 0
1839 checkTemplateHaskellOk :: Bool -> DynP ()
1840 checkTemplateHaskellOk turn_on
1841 | turn_on && rtsIsProfiled
1842 = addErr "You can't use Template Haskell with a profiled compiler"
1846 -- In stage 1 we don't know that the RTS has rts_isProfiled,
1847 -- so we simply say "ok". It doesn't matter because TH isn't
1848 -- available in stage 1 anyway.
1849 checkTemplateHaskellOk turn_on = return ()
1852 {- **********************************************************************
1854 DynFlags constructors
1856 %********************************************************************* -}
1858 type DynP = EwM (CmdLineP DynFlags)
1860 upd :: (DynFlags -> DynFlags) -> DynP ()
1861 upd f = liftEwM (do { dfs <- getCmdLineState
1862 ; putCmdLineState $! (f dfs) })
1864 --------------- Constructor functions for OptKind -----------------
1865 noArg :: (DynFlags -> DynFlags) -> OptKind (CmdLineP DynFlags)
1866 noArg fn = NoArg (upd fn)
1868 noArgDF :: (DynFlags -> DynFlags) -> String -> OptKind (CmdLineP DynFlags)
1869 noArgDF fn deprec = NoArg (upd fn >> deprecate deprec)
1871 hasArg :: (String -> DynFlags -> DynFlags) -> OptKind (CmdLineP DynFlags)
1872 hasArg fn = HasArg (upd . fn)
1874 hasArgDF :: (String -> DynFlags -> DynFlags) -> String -> OptKind (CmdLineP DynFlags)
1875 hasArgDF fn deprec = HasArg (\s -> do { upd (fn s)
1876 ; deprecate deprec })
1878 intSuffix :: (Int -> DynFlags -> DynFlags) -> OptKind (CmdLineP DynFlags)
1879 intSuffix fn = IntSuffix (\n -> upd (fn n))
1881 setDumpFlag :: DynFlag -> OptKind (CmdLineP DynFlags)
1882 setDumpFlag dump_flag = NoArg (setDumpFlag' dump_flag)
1884 --------------------------
1885 setDynFlag, unSetDynFlag :: DynFlag -> DynP ()
1886 setDynFlag f = upd (\dfs -> dopt_set dfs f)
1887 unSetDynFlag f = upd (\dfs -> dopt_unset dfs f)
1889 --------------------------
1890 setExtensionFlag, unSetExtensionFlag :: ExtensionFlag -> DynP ()
1891 setExtensionFlag f = do { upd (\dfs -> xopt_set dfs f)
1894 deps = [ if turn_on then setExtensionFlag d
1895 else unSetExtensionFlag d
1896 | (f', turn_on, d) <- impliedFlags, f' == f ]
1897 -- When you set f, set the ones it implies
1898 -- NB: use setExtensionFlag recursively, in case the implied flags
1899 -- implies further flags
1901 unSetExtensionFlag f = upd (\dfs -> xopt_unset dfs f)
1902 -- When you un-set f, however, we don't un-set the things it implies
1903 -- (except for -fno-glasgow-exts, which is treated specially)
1905 --------------------------
1906 setDumpFlag' :: DynFlag -> DynP ()
1907 setDumpFlag' dump_flag
1908 = do { setDynFlag dump_flag
1909 ; when want_recomp forceRecompile }
1911 -- Certain dumpy-things are really interested in what's going
1912 -- on during recompilation checking, so in those cases we
1913 -- don't want to turn it off.
1914 want_recomp = dump_flag `notElem` [Opt_D_dump_if_trace,
1915 Opt_D_dump_hi_diffs]
1917 forceRecompile :: DynP ()
1918 -- Whenver we -ddump, force recompilation (by switching off the
1919 -- recompilation checker), else you don't see the dump! However,
1920 -- don't switch it off in --make mode, else *everything* gets
1921 -- recompiled which probably isn't what you want
1922 forceRecompile = do { dfs <- liftEwM getCmdLineState
1923 ; when (force_recomp dfs) (setDynFlag Opt_ForceRecomp) }
1925 force_recomp dfs = isOneShot (ghcMode dfs)
1927 setVerboseCore2Core :: DynP ()
1928 setVerboseCore2Core = do forceRecompile
1929 setDynFlag Opt_D_verbose_core2core
1930 upd (\dfs -> dfs { shouldDumpSimplPhase = Nothing })
1933 setDumpSimplPhases :: String -> DynP ()
1934 setDumpSimplPhases s = do forceRecompile
1935 upd (\dfs -> dfs { shouldDumpSimplPhase = Just spec })
1937 spec = case s of { ('=' : s') -> s'; _ -> s }
1939 setVerbosity :: Maybe Int -> DynP ()
1940 setVerbosity mb_n = upd (\dfs -> dfs{ verbosity = mb_n `orElse` 3 })
1942 addCmdlineHCInclude :: String -> DynP ()
1943 addCmdlineHCInclude a = upd (\s -> s{cmdlineHcIncludes = a : cmdlineHcIncludes s})
1945 extraPkgConf_ :: FilePath -> DynP ()
1946 extraPkgConf_ p = upd (\s -> s{ extraPkgConfs = p : extraPkgConfs s })
1948 exposePackage, exposePackageId, hidePackage, ignorePackage :: String -> DynP ()
1950 upd (\s -> s{ packageFlags = ExposePackage p : packageFlags s })
1952 upd (\s -> s{ packageFlags = ExposePackageId p : packageFlags s })
1954 upd (\s -> s{ packageFlags = HidePackage p : packageFlags s })
1956 upd (\s -> s{ packageFlags = IgnorePackage p : packageFlags s })
1958 setPackageName :: String -> DynFlags -> DynFlags
1959 setPackageName p s = s{ thisPackage = stringToPackageId p }
1961 -- If we're linking a binary, then only targets that produce object
1962 -- code are allowed (requests for other target types are ignored).
1963 setTarget :: HscTarget -> DynP ()
1964 setTarget l = upd set
1967 | ghcLink dfs /= LinkBinary || isObjectTarget l = dfs{ hscTarget = l }
1970 -- Changes the target only if we're compiling object code. This is
1971 -- used by -fasm and -fllvm, which switch from one to the other, but
1972 -- not from bytecode to object-code. The idea is that -fasm/-fllvm
1973 -- can be safely used in an OPTIONS_GHC pragma.
1974 setObjTarget :: HscTarget -> DynP ()
1975 setObjTarget l = upd set
1978 | isObjectTarget (hscTarget dfs) = dfs { hscTarget = l }
1981 setOptLevel :: Int -> DynFlags -> DynFlags
1982 setOptLevel n dflags
1983 | hscTarget dflags == HscInterpreted && n > 0
1985 -- not in IO any more, oh well:
1986 -- putStr "warning: -O conflicts with --interactive; -O ignored.\n"
1988 = updOptLevel n dflags
1991 -- -Odph is equivalent to
1993 -- -O2 optimise as much as possible
1994 -- -fmax-simplifier-iterations20 this is necessary sometimes
1995 -- -fsimplifier-phases=3 we use an additional simplifier phase for fusion
1997 setDPHOpt :: DynFlags -> DynFlags
1998 setDPHOpt dflags = setOptLevel 2 (dflags { maxSimplIterations = 20
2002 -- Determines the package used by the vectoriser for the symbols of the vectorised code.
2003 -- 'DPHNone' indicates that no data-parallel backend library is available; hence, the
2004 -- vectoriser cannot be used.
2006 data DPHBackend = DPHPar -- "dph-par"
2007 | DPHSeq -- "dph-seq"
2008 | DPHThis -- the currently compiled package
2009 | DPHNone -- no DPH library available
2010 deriving(Eq, Ord, Enum, Show)
2012 setDPHBackend :: DPHBackend -> DynP ()
2013 setDPHBackend backend = upd $ \dflags -> dflags { dphBackend = backend }
2015 -- Query the DPH backend package to be used by the vectoriser and desugaring of DPH syntax.
2017 dphPackageMaybe :: DynFlags -> Maybe PackageId
2018 dphPackageMaybe dflags
2019 = case dphBackend dflags of
2020 DPHPar -> Just dphParPackageId
2021 DPHSeq -> Just dphSeqPackageId
2022 DPHThis -> Just (thisPackage dflags)
2025 setMainIs :: String -> DynP ()
2027 | not (null main_fn) && isLower (head main_fn)
2028 -- The arg looked like "Foo.Bar.baz"
2029 = upd $ \d -> d{ mainFunIs = Just main_fn,
2030 mainModIs = mkModule mainPackageId (mkModuleName main_mod) }
2032 | isUpper (head arg) -- The arg looked like "Foo" or "Foo.Bar"
2033 = upd $ \d -> d{ mainModIs = mkModule mainPackageId (mkModuleName arg) }
2035 | otherwise -- The arg looked like "baz"
2036 = upd $ \d -> d{ mainFunIs = Just arg }
2038 (main_mod, main_fn) = splitLongestPrefix arg (== '.')
2040 -----------------------------------------------------------------------------
2041 -- Paths & Libraries
2043 addImportPath, addLibraryPath, addIncludePath, addFrameworkPath :: FilePath -> DynP ()
2045 -- -i on its own deletes the import paths
2046 addImportPath "" = upd (\s -> s{importPaths = []})
2047 addImportPath p = upd (\s -> s{importPaths = importPaths s ++ splitPathList p})
2051 upd (\s -> s{libraryPaths = libraryPaths s ++ splitPathList p})
2054 upd (\s -> s{includePaths = includePaths s ++ splitPathList p})
2056 addFrameworkPath p =
2057 upd (\s -> s{frameworkPaths = frameworkPaths s ++ splitPathList p})
2059 #ifndef mingw32_TARGET_OS
2060 split_marker :: Char
2061 split_marker = ':' -- not configurable (ToDo)
2064 splitPathList :: String -> [String]
2065 splitPathList s = filter notNull (splitUp s)
2066 -- empty paths are ignored: there might be a trailing
2067 -- ':' in the initial list, for example. Empty paths can
2068 -- cause confusion when they are translated into -I options
2069 -- for passing to gcc.
2071 #ifndef mingw32_TARGET_OS
2072 splitUp xs = split split_marker xs
2074 -- Windows: 'hybrid' support for DOS-style paths in directory lists.
2076 -- That is, if "foo:bar:baz" is used, this interpreted as
2077 -- consisting of three entries, 'foo', 'bar', 'baz'.
2078 -- However, with "c:/foo:c:\\foo;x:/bar", this is interpreted
2079 -- as 3 elts, "c:/foo", "c:\\foo", "x:/bar"
2081 -- Notice that no attempt is made to fully replace the 'standard'
2082 -- split marker ':' with the Windows / DOS one, ';'. The reason being
2083 -- that this will cause too much breakage for users & ':' will
2084 -- work fine even with DOS paths, if you're not insisting on being silly.
2087 splitUp (x:':':div:xs) | div `elem` dir_markers
2088 = ((x:':':div:p): splitUp rs)
2090 (p,rs) = findNextPath xs
2091 -- we used to check for existence of the path here, but that
2092 -- required the IO monad to be threaded through the command-line
2093 -- parser which is quite inconvenient. The
2094 splitUp xs = cons p (splitUp rs)
2096 (p,rs) = findNextPath xs
2101 -- will be called either when we've consumed nought or the
2102 -- "<Drive>:/" part of a DOS path, so splitting is just a Q of
2103 -- finding the next split marker.
2105 case break (`elem` split_markers) xs of
2106 (p, _:ds) -> (p, ds)
2109 split_markers :: [Char]
2110 split_markers = [':', ';']
2112 dir_markers :: [Char]
2113 dir_markers = ['/', '\\']
2116 -- -----------------------------------------------------------------------------
2117 -- tmpDir, where we store temporary files.
2119 setTmpDir :: FilePath -> DynFlags -> DynFlags
2120 setTmpDir dir dflags = dflags{ tmpDir = normalise dir }
2121 -- we used to fix /cygdrive/c/.. on Windows, but this doesn't
2122 -- seem necessary now --SDM 7/2/2008
2124 -----------------------------------------------------------------------------
2127 setRtsOpts :: String -> DynP ()
2128 setRtsOpts arg = upd $ \ d -> d {rtsOpts = Just arg}
2130 setRtsOptsEnabled :: RtsOptsEnabled -> DynP ()
2131 setRtsOptsEnabled arg = upd $ \ d -> d {rtsOptsEnabled = arg}
2133 -----------------------------------------------------------------------------
2136 setOptHpcDir :: String -> DynP ()
2137 setOptHpcDir arg = upd $ \ d -> d{hpcDir = arg}
2139 -----------------------------------------------------------------------------
2140 -- Via-C compilation stuff
2142 -- There are some options that we need to pass to gcc when compiling
2143 -- Haskell code via C, but are only supported by recent versions of
2144 -- gcc. The configure script decides which of these options we need,
2145 -- and puts them in the file "extra-gcc-opts" in $topdir, which is
2146 -- read before each via-C compilation. The advantage of having these
2147 -- in a separate file is that the file can be created at install-time
2148 -- depending on the available gcc version, and even re-generated later
2149 -- if gcc is upgraded.
2151 -- The options below are not dependent on the version of gcc, only the
2154 machdepCCOpts :: DynFlags -> [String] -- flags for all C compilations
2155 machdepCCOpts dflags = cCcOpts ++ machdepCCOpts'
2157 machdepCCOpts' :: [String] -- flags for all C compilations
2159 #if alpha_TARGET_ARCH
2161 #ifdef HAVE_THREADED_RTS_SUPPORT
2165 -- For now, to suppress the gcc warning "call-clobbered
2166 -- register used for global register variable", we simply
2167 -- disable all warnings altogether using the -w flag. Oh well.
2169 #elif hppa_TARGET_ARCH
2170 -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
2171 -- (very nice, but too bad the HP /usr/include files don't agree.)
2172 = ["-D_HPUX_SOURCE"]
2174 #elif i386_TARGET_ARCH
2175 -- -fno-defer-pop : basically the same game as for m68k
2177 -- -fomit-frame-pointer : *must* in .hc files; because we're stealing
2178 -- the fp (%ebp) for our register maps.
2179 = if opt_Static then ["-DDONT_WANT_WIN32_DLL_SUPPORT"] else []
2185 picCCOpts :: DynFlags -> [String]
2187 #if darwin_TARGET_OS
2188 -- Apple prefers to do things the other way round.
2189 -- PIC is on by default.
2190 -- -mdynamic-no-pic:
2191 -- Turn off PIC code generation.
2193 -- Don't generate "common" symbols - these are unwanted
2194 -- in dynamic libraries.
2197 = ["-fno-common", "-U __PIC__","-D__PIC__"]
2199 = ["-mdynamic-no-pic"]
2200 #elif mingw32_TARGET_OS
2201 -- no -fPIC for Windows
2203 = ["-U __PIC__","-D__PIC__"]
2207 -- we need -fPIC for C files when we are compiling with -dynamic,
2208 -- otherwise things like stub.c files don't get compiled
2209 -- correctly. They need to reference data in the Haskell
2210 -- objects, but can't without -fPIC. See
2211 -- http://hackage.haskell.org/trac/ghc/wiki/Commentary/PositionIndependentCode
2212 | opt_PIC || not opt_Static
2213 = ["-fPIC", "-U __PIC__", "-D__PIC__"]
2218 -- -----------------------------------------------------------------------------
2222 can_split = cSupportsSplitObjs == "YES"
2224 -- -----------------------------------------------------------------------------
2227 data Printable = String String
2228 | FromDynFlags (DynFlags -> String)
2230 compilerInfo :: [(String, Printable)]
2231 compilerInfo = [("Project name", String cProjectName),
2232 ("Project version", String cProjectVersion),
2233 ("Booter version", String cBooterVersion),
2234 ("Stage", String cStage),
2235 ("Build platform", String cBuildPlatformString),
2236 ("Host platform", String cHostPlatformString),
2237 ("Target platform", String cTargetPlatformString),
2238 ("Have interpreter", String cGhcWithInterpreter),
2239 ("Object splitting supported", String cSupportsSplitObjs),
2240 ("Have native code generator", String cGhcWithNativeCodeGen),
2241 ("Support SMP", String cGhcWithSMP),
2242 ("Unregisterised", String cGhcUnregisterised),
2243 ("Tables next to code", String cGhcEnableTablesNextToCode),
2244 ("RTS ways", String cGhcRTSWays),
2245 ("Leading underscore", String cLeadingUnderscore),
2246 ("Debug on", String (show debugIsOn)),
2247 ("LibDir", FromDynFlags topDir),
2248 ("Global Package DB", FromDynFlags systemPackageConfig),
2249 ("C compiler flags", String (show cCcOpts)),
2250 ("Gcc Linker flags", String (show cGccLinkerOpts)),
2251 ("Ld Linker flags", String (show cLdLinkerOpts))