------------------------------------------------------------------------------
---
+-- |
-- Dynamic flags
--
--- Most flags are dynamic flags, which means they can change from
--- compilation to compilation using OPTIONS_GHC pragmas, and in a
--- multi-session GHC each session can be using different dynamic
--- flags. Dynamic flags can also be set at the prompt in GHCi.
--
-- (c) The University of Glasgow 2005
--
------------------------------------------------------------------------------
+-- Most flags are dynamic flags, which means they can change from
+-- compilation to compilation using @OPTIONS_GHC@ pragmas, and in a
+-- multi-session GHC each session can be using different dynamic
+-- flags. Dynamic flags can also be set at the prompt in GHCi.
module DynFlags (
- -- Dynamic flags
- DynFlag(..),
- DynFlags(..),
- HscTarget(..),
- GhcMode(..), isOneShot,
- GhcLink(..), isNoLink,
- PackageFlag(..),
- Option(..),
-
- -- Configuration of the core-to-core and stg-to-stg phases
- CoreToDo(..),
- StgToDo(..),
- SimplifierSwitch(..),
- SimplifierMode(..), FloatOutSwitches(..),
- getCoreToDo, getStgToDo,
-
- -- Manipulating DynFlags
- defaultDynFlags, -- DynFlags
- initDynFlags, -- DynFlags -> IO DynFlags
-
- dopt, -- DynFlag -> DynFlags -> Bool
- dopt_set, dopt_unset, -- DynFlags -> DynFlag -> DynFlags
- getOpts, -- (DynFlags -> [a]) -> IO [a]
- getVerbFlag,
- updOptLevel,
- setTmpDir,
-
- -- parsing DynFlags
- parseDynamicFlags,
+ -- * Dynamic flags and associated configuration types
+ DynFlag(..),
+ DynFlags(..),
+ HscTarget(..), isObjectTarget, defaultObjectTarget,
+ GhcMode(..), isOneShot,
+ GhcLink(..), isNoLink,
+ PackageFlag(..),
+ Option(..), showOpt,
+ DynLibLoader(..),
+ fFlags, xFlags,
+ dphPackage,
+ wayNames,
+
+ -- ** Manipulating 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,
+ setTmpDir,
+ setPackageName,
+ doingTickyProfiling,
+
+ -- ** Parsing DynFlags
+ parseDynamicFlags,
+ parseDynamicNoPackageFlags,
allFlags,
- -- misc stuff
- machdepCCOpts, picCCOpts,
+ supportedLanguages, languageOptions,
+
+ -- ** DynFlag C compiler options
+ machdepCCOpts, picCCOpts,
+
+ -- * Configuration of the stg-to-stg passes
+ StgToDo(..),
+ getStgToDo,
+
+ -- * Compiler configuration suitable for display to the user
+ Printable(..),
+ compilerInfo
) where
#include "HsVersions.h"
-import Module ( Module, mkModule )
-import PrelNames ( mAIN )
-import StaticFlags ( opt_Static, opt_PIC,
- WayName(..), v_Ways, v_Build_tag, v_RTS_Build_tag )
+#ifndef OMIT_NATIVE_CODEGEN
+import Platform
+#endif
+import Module
+import PackageConfig
+import PrelNames ( mAIN )
+import StaticFlags
import {-# SOURCE #-} Packages (PackageState)
-import DriverPhases ( Phase(..), phaseInputExt )
+import DriverPhases ( Phase(..), phaseInputExt )
import Config
import CmdLineParser
-import Panic ( panic, GhcException(..) )
-import Util ( notNull, splitLongestPrefix, split, normalisePath )
-import SrcLoc ( SrcSpan )
-
-import DATA_IOREF ( readIORef )
-import EXCEPTION ( throwDyn )
-import Monad ( when )
-#ifdef mingw32_TARGET_OS
-import Data.List ( isPrefixOf )
-#endif
-import Maybe ( fromJust )
-import Char ( isDigit, isUpper )
+import Constants ( mAX_CONTEXT_REDUCTION_DEPTH )
+import Panic
+import Util
+import Maybes ( orElse )
+import SrcLoc
+import FastString
+import FiniteMap
import Outputable
-import System.IO ( hPutStrLn, stderr )
import {-# SOURCE #-} ErrUtils ( Severity(..), Message, mkLocMessage )
+import Data.IORef
+import Control.Monad ( when )
+
+import Data.Char
+import Data.List
+import System.FilePath
+import System.IO ( stderr, hPutChar )
+
-- -----------------------------------------------------------------------------
-- DynFlags
+-- | Enumerates the simple on-or-off dynamic flags
data DynFlag
-- debugging flags
= Opt_D_dump_cmm
+ | Opt_D_dump_cmmz
+ | Opt_D_dump_cmmz_pretty
+ | Opt_D_dump_cps_cmm
+ | Opt_D_dump_cvt_cmm
| Opt_D_dump_asm
+ | Opt_D_dump_asm_native
+ | Opt_D_dump_asm_liveness
+ | Opt_D_dump_asm_coalesce
+ | Opt_D_dump_asm_regalloc
+ | Opt_D_dump_asm_regalloc_stages
+ | Opt_D_dump_asm_conflicts
+ | Opt_D_dump_asm_stats
+ | Opt_D_dump_asm_expanded
| Opt_D_dump_cpranal
| Opt_D_dump_deriv
| Opt_D_dump_ds
| Opt_D_dump_flatC
| Opt_D_dump_foreign
| Opt_D_dump_inlinings
+ | Opt_D_dump_rule_firings
| Opt_D_dump_occur_anal
| Opt_D_dump_parsed
| Opt_D_dump_rn
| Opt_D_dump_simpl
| Opt_D_dump_simpl_iterations
+ | Opt_D_dump_simpl_phases
| Opt_D_dump_spec
| Opt_D_dump_prep
| Opt_D_dump_stg
| Opt_D_dump_splices
| Opt_D_dump_BCOs
| Opt_D_dump_vect
+ | Opt_D_dump_hpc
+ | Opt_D_dump_rtti
| Opt_D_source_stats
| Opt_D_verbose_core2core
| Opt_D_verbose_stg2stg
| Opt_D_dump_hi
| Opt_D_dump_hi_diffs
| Opt_D_dump_minimal_imports
+ | Opt_D_dump_mod_cycles
+ | Opt_D_dump_view_pattern_commoning
| Opt_D_faststring_stats
+ | Opt_DumpToFile -- ^ Append dump output to files instead of stdout.
+ | Opt_D_no_debug_output
| Opt_DoCoreLinting
| Opt_DoStgLinting
| Opt_DoCmmLinting
+ | Opt_DoAsmLinting
- | Opt_WarnIsError -- -Werror; makes warnings fatal
+ | Opt_WarnIsError -- -Werror; makes warnings fatal
| Opt_WarnDuplicateExports
| Opt_WarnHiShadows
+ | Opt_WarnImplicitPrelude
| Opt_WarnIncompletePatterns
| Opt_WarnIncompletePatternsRecUpd
| Opt_WarnMissingFields
| Opt_WarnOverlappingPatterns
| Opt_WarnSimplePatterns
| Opt_WarnTypeDefaults
+ | Opt_WarnMonomorphism
| Opt_WarnUnusedBinds
| Opt_WarnUnusedImports
| Opt_WarnUnusedMatches
- | Opt_WarnDeprecations
+ | Opt_WarnWarningsDeprecations
+ | Opt_WarnDeprecatedFlags
+ | Opt_WarnDodgyExports
| Opt_WarnDodgyImports
| Opt_WarnOrphans
+ | Opt_WarnTabs
+ | Opt_WarnUnrecognisedPragmas
+ | Opt_WarnDodgyForeignImports
+ | Opt_WarnLazyUnliftedBindings
+ | Opt_WarnUnusedDoBind
+ | Opt_WarnWrongDoBind
+ | Opt_WarnAlternativeLayoutRuleTransitional
+
-- language opts
- | Opt_AllowOverlappingInstances
- | Opt_AllowUndecidableInstances
- | Opt_AllowIncoherentInstances
+ | Opt_OverlappingInstances
+ | Opt_UndecidableInstances
+ | Opt_IncoherentInstances
| Opt_MonomorphismRestriction
- | Opt_GlasgowExts
- | Opt_FFI
- | Opt_PArr -- syntactic support for parallel arrays
- | Opt_Arrows -- Arrow-notation syntax
- | Opt_TH
+ | 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
- | Opt_ImplicitPrelude
+ | 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
| Opt_Strictness
| Opt_FullLaziness
+ | Opt_FloatIn
+ | Opt_Specialise
+ | Opt_StaticArgumentTransformation
| Opt_CSE
- | Opt_IgnoreInterfacePragmas
- | Opt_OmitInterfacePragmas
+ | Opt_LiberateCase
+ | Opt_SpecConstr
| Opt_DoLambdaEtaExpansion
| Opt_IgnoreAsserts
- | Opt_IgnoreBreakpoints
| Opt_DoEtaReduction
| Opt_CaseMerge
| Opt_UnboxStrictFields
+ | Opt_MethodSharing
+ | Opt_DictsCheap
+ | Opt_EnableRewriteRules -- Apply rewrite rules during simplification
+ | Opt_Vectorise
+ | Opt_RegsGraph -- do graph coloring register allocation
+ | Opt_RegsIterative -- do iterative coalescing graph coloring register allocation
+
+ -- Interface files
+ | Opt_IgnoreInterfacePragmas
+ | Opt_OmitInterfacePragmas
+ | Opt_ExposeAllUnfoldings
+
+ -- profiling opts
+ | Opt_AutoSccsOnAllToplevs
+ | Opt_AutoSccsOnExportedToplevs
+ | Opt_AutoSccsOnIndividualCafs
-- misc opts
| Opt_Cpp
| Opt_Pp
- | Opt_RecompChecking
+ | Opt_ForceRecomp
| Opt_DryRun
| Opt_DoAsmMangling
| Opt_ExcessPrecision
+ | Opt_EagerBlackHoling
| Opt_ReadUserPackageConf
| Opt_NoHsMain
| Opt_SplitObjs
| Opt_StgStats
| Opt_HideAllPackages
+ | Opt_PrintBindResult
+ | Opt_Haddock
+ | Opt_HaddockOptions
+ | Opt_Hpc_No_Auto
+ | Opt_BreakOnException
+ | Opt_BreakOnError
+ | Opt_PrintEvldWithShow
+ | Opt_PrintBindContents
+ | Opt_GenManifest
+ | Opt_EmbedManifest
+ | Opt_EmitExternalCore
+ | Opt_SharedImplib
+ | Opt_BuildingCabalPackage
+ | Opt_SSE2
+
+ -- temporary flags
+ | Opt_RunCPS
+ | Opt_RunCPSZ
+ | Opt_ConvertToZipCfgAndBack
+ | Opt_AutoLinkPackages
+ | Opt_ImplicitImportQualified
+ | Opt_TryNewCodeGen
-- keeping stuff
| Opt_KeepHiDiffs
| Opt_KeepSFiles
| Opt_KeepRawSFiles
| Opt_KeepTmpFiles
+ | Opt_KeepRawTokenStream
- deriving (Eq)
-
+ 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 {
- ghcMode :: GhcMode,
- ghcLink :: GhcLink,
- coreToDo :: Maybe [CoreToDo], -- reserved for -Ofile
- stgToDo :: Maybe [StgToDo], -- similarly
- hscTarget :: HscTarget,
- hscOutName :: String, -- name of the output file
- extCoreName :: String, -- name of the .core output file
- verbosity :: Int, -- verbosity level
- optLevel :: Int, -- optimisation level
- maxSimplIterations :: Int, -- max simplifier iterations
- ruleCheck :: Maybe String,
- stolen_x86_regs :: Int,
- cmdlineHcIncludes :: [String], -- -#includes
- importPaths :: [FilePath],
- mainModIs :: Module,
- mainFunIs :: Maybe String,
+ ghcMode :: GhcMode,
+ ghcLink :: GhcLink,
+ hscTarget :: HscTarget,
+ hscOutName :: String, -- ^ Name of the output file
+ extCoreName :: String, -- ^ Name of the .hcr output file
+ verbosity :: Int, -- ^ Verbosity level: see Note [Verbosity levels]
+ optLevel :: Int, -- ^ Optimisation level
+ simplPhases :: Int, -- ^ Number of simplifier phases
+ maxSimplIterations :: Int, -- ^ Max simplifier iterations
+ shouldDumpSimplPhase :: Maybe String,
+ ruleCheck :: Maybe String,
+ strictnessBefore :: [Int], -- ^ Additional demand analysis
+
+ specConstrThreshold :: Maybe Int, -- ^ Threshold for SpecConstr
+ specConstrCount :: Maybe Int, -- ^ Max number of specialisations for any one function
+ liberateCaseThreshold :: Maybe Int, -- ^ Threshold for LiberateCase
+
+#ifndef OMIT_NATIVE_CODEGEN
+ targetPlatform :: Platform, -- ^ The platform we're compiling for. Used by the NCG.
+#endif
+ stolen_x86_regs :: Int,
+ cmdlineHcIncludes :: [String], -- ^ @\-\#includes@
+ importPaths :: [FilePath],
+ mainModIs :: Module,
+ mainFunIs :: Maybe String,
+ ctxtStkDepth :: Int, -- ^ Typechecker context stack depth
+
+ dphBackend :: DPHBackend,
+
+ thisPackage :: PackageId, -- ^ name of package currently being compiled
-- ways
- wayNames :: [WayName], -- way flags from the cmd line
- buildTag :: String, -- the global "way" (eg. "p" for prof)
- rtsBuildTag :: String, -- the RTS "way"
-
+ ways :: [Way], -- ^ Way flags from the command line
+ buildTag :: String, -- ^ The global \"way\" (e.g. \"p\" for prof)
+ rtsBuildTag :: String, -- ^ The RTS \"way\"
+
+ -- For object splitting
+ splitInfo :: Maybe (String,Int),
+
-- paths etc.
- objectDir :: Maybe String,
- hiDir :: Maybe String,
- stubDir :: Maybe String,
-
- objectSuf :: String,
- hcSuf :: String,
- hiSuf :: String,
-
- outputFile :: Maybe String,
- outputHi :: Maybe String,
-
- includePaths :: [String],
- libraryPaths :: [String],
- frameworkPaths :: [String], -- used on darwin only
- cmdlineFrameworks :: [String], -- ditto
- tmpDir :: String, -- no trailing '/'
-
+ objectDir :: Maybe String,
+ dylibInstallName :: Maybe String,
+ hiDir :: Maybe String,
+ stubDir :: Maybe String,
+
+ objectSuf :: String,
+ hcSuf :: String,
+ hiSuf :: String,
+
+ outputFile :: Maybe String,
+ outputHi :: Maybe String,
+ dynLibLoader :: DynLibLoader,
+
+ -- | This is set by 'DriverPipeline.runPipeline' based on where
+ -- its output is going.
+ dumpPrefix :: Maybe FilePath,
+
+ -- | Override the 'dumpPrefix' set by 'DriverPipeline.runPipeline'.
+ -- Set by @-ddump-file-prefix@
+ dumpPrefixForce :: Maybe FilePath,
+
+ includePaths :: [String],
+ libraryPaths :: [String],
+ frameworkPaths :: [String], -- used on darwin only
+ cmdlineFrameworks :: [String], -- ditto
+ tmpDir :: String, -- no trailing '/'
+
+ ghcUsagePath :: FilePath, -- Filled in by SysTools
+ ghciUsagePath :: FilePath, -- ditto
+
+ hpcDir :: String, -- ^ Path to store the .mix files
+
-- options for particular phases
- opt_L :: [String],
- opt_P :: [String],
- opt_F :: [String],
- opt_c :: [String],
- opt_m :: [String],
- opt_a :: [String],
- opt_l :: [String],
- opt_dll :: [String],
- opt_dep :: [String],
+ opt_L :: [String],
+ opt_P :: [String],
+ opt_F :: [String],
+ opt_c :: [String],
+ opt_m :: [String],
+ opt_a :: [String],
+ opt_l :: [String],
+ opt_windres :: [String],
-- commands for particular phases
- pgm_L :: String,
- pgm_P :: (String,[Option]),
- pgm_F :: String,
- pgm_c :: (String,[Option]),
- pgm_m :: (String,[Option]),
- pgm_s :: (String,[Option]),
- pgm_a :: (String,[Option]),
- pgm_l :: (String,[Option]),
- pgm_dll :: (String,[Option]),
-
- -- ** Package flags
- extraPkgConfs :: [FilePath],
- -- The -package-conf flags given on the command line, in the order
- -- they appeared.
-
- packageFlags :: [PackageFlag],
- -- The -package and -hide-package flags from the command-line
-
- -- ** Package state
- pkgState :: PackageState,
+ pgm_L :: String,
+ pgm_P :: (String,[Option]),
+ pgm_F :: String,
+ pgm_c :: (String,[Option]),
+ pgm_m :: (String,[Option]),
+ pgm_s :: (String,[Option]),
+ pgm_a :: (String,[Option]),
+ pgm_l :: (String,[Option]),
+ pgm_dll :: (String,[Option]),
+ pgm_T :: String,
+ pgm_sysman :: String,
+ pgm_windres :: String,
+
+ -- For ghc -M
+ depMakefile :: FilePath,
+ depIncludePkgDeps :: Bool,
+ depExcludeMods :: [ModuleName],
+ depSuffixes :: [String],
+
+ -- Package flags
+ extraPkgConfs :: [FilePath],
+ topDir :: FilePath, -- filled in by SysTools
+ systemPackageConfig :: FilePath, -- ditto
+ -- ^ The @-package-conf@ flags given on the command line, in the order
+ -- they appeared.
+
+ packageFlags :: [PackageFlag],
+ -- ^ The @-package@ and @-hide-package@ flags from the command-line
+
+ -- Package state
+ -- NB. do not modify this field, it is calculated by
+ -- Packages.initPackages and Packages.updatePackages.
+ pkgDatabase :: Maybe [PackageConfig],
+ pkgState :: PackageState,
+
+ -- Temporary files
+ -- 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),
-- hsc dynamic flags
- flags :: [DynFlag],
-
- -- message output
- log_action :: Severity -> SrcSpan -> PprStyle -> Message -> IO ()
+ flags :: [DynFlag],
+
+ -- | Message output action: use "ErrUtils" instead of this if you can
+ log_action :: Severity -> SrcSpan -> PprStyle -> Message -> IO (),
+
+ haddockOptions :: Maybe String
}
+wayNames :: DynFlags -> [WayName]
+wayNames = map wayName . ways
+
+-- | The target code type of the compilation (if any).
+--
+-- Whenever you change the target, also make sure to set 'ghcLink' to
+-- something sensible.
+--
+-- 'HscNothing' can be used to avoid generating any output, however, note
+-- that:
+--
+-- * This will not run the desugaring step, thus no warnings generated in
+-- this step will be output. In particular, this includes warnings related
+-- to pattern matching. You can run the desugarer manually using
+-- 'GHC.desugarModule'.
+--
+-- * If a program uses Template Haskell the typechecker may try to run code
+-- from an imported module. This will fail if no code has been generated
+-- for this module. You can use 'GHC.needsTemplateHaskell' to detect
+-- whether this might be the case and choose to either switch to a
+-- different target or avoid typechecking such modules. (The latter may
+-- preferable for security reasons.)
+--
data HscTarget
- = HscC
- | HscAsm
- | HscJava
- | HscILX
- | HscInterpreted
- | HscNothing
+ = HscC -- ^ Generate C code.
+ | HscAsm -- ^ Generate assembly using the native code generator.
+ | HscJava -- ^ Generate Java bytecode.
+ | HscInterpreted -- ^ Generate bytecode. (Requires 'LinkInMemory')
+ | HscNothing -- ^ Don't generate any code. See notes above.
deriving (Eq, Show)
+-- | Will this target result in an object file on the disk?
+isObjectTarget :: HscTarget -> Bool
+isObjectTarget HscC = True
+isObjectTarget HscAsm = True
+isObjectTarget _ = False
+
+-- | The 'GhcMode' tells us whether we're doing multi-module
+-- compilation (controlled via the "GHC" API) or one-shot
+-- (single-module) compilation. This makes a difference primarily to
+-- the "Finder": in one-shot mode we look for interface files for
+-- imported modules, but in multi-module mode we look for source files
+-- in order to check whether they need to be recompiled.
data GhcMode
- = BatchCompile -- | @ghc --make Main@
- | Interactive -- | @ghc --interactive@
- | OneShot -- | @ghc -c Foo.hs@
- | JustTypecheck -- | Development environemnts, refactorer, etc.
- | MkDepend
+ = CompManager -- ^ @\-\-make@, GHCi, etc.
+ | OneShot -- ^ @ghc -c Foo.hs@
+ | MkDepend -- ^ @ghc -M@, see "Finder" for why we need this
deriving Eq
+instance Outputable GhcMode where
+ ppr CompManager = ptext (sLit "CompManager")
+ ppr OneShot = ptext (sLit "OneShot")
+ ppr MkDepend = ptext (sLit "MkDepend")
+
isOneShot :: GhcMode -> Bool
isOneShot OneShot = True
isOneShot _other = False
-data GhcLink -- What to do in the link step, if there is one
- = -- Only relevant for modes
- -- DoMake and StopBefore StopLn
- NoLink -- Don't link at all
- | StaticLink -- Ordinary linker [the default]
- | MkDLL -- Make a DLL
+-- | What to do in the link step, if there is one.
+data GhcLink
+ = NoLink -- ^ Don't link at all
+ | LinkBinary -- ^ Link object code into a binary
+ | LinkInMemory -- ^ Use the in-memory dynamic linker (works for both
+ -- bytecode and object code).
+ | LinkDynLib -- ^ Link objects into a dynamic lib (DLL on Windows, DSO on ELF platforms)
+ deriving (Eq, Show)
isNoLink :: GhcLink -> Bool
isNoLink NoLink = True
-isNoLink other = False
+isNoLink _ = False
+
+-- Is it worth evaluating this Bool and caching it in the DynFlags value
+-- during initDynFlags?
+doingTickyProfiling :: DynFlags -> Bool
+doingTickyProfiling _ = opt_Ticky
+ -- XXX -ticky is a static flag, because it implies -debug which is also
+ -- static. If the way flags were made dynamic, we could fix this.
data PackageFlag
= ExposePackage String
+ | ExposePackageId String
| HidePackage String
| IgnorePackage String
+ deriving Eq
-defaultHscTarget
- | cGhcWithNativeCodeGen == "YES" = HscAsm
- | otherwise = HscC
+defaultHscTarget :: HscTarget
+defaultHscTarget = defaultObjectTarget
+-- | The 'HscTarget' value corresponding to the default way to create
+-- object files on the current platform.
+defaultObjectTarget :: HscTarget
+defaultObjectTarget
+ | cGhcWithNativeCodeGen == "YES" = HscAsm
+ | otherwise = HscC
+
+data DynLibLoader
+ = Deployable
+ | Wrapped (Maybe String)
+ | SystemDependent
+ deriving Eq
+
+-- | 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
- build_tag <- readIORef v_Build_tag
- rts_build_tag <- readIORef v_RTS_Build_tag
+ refFilesToClean <- newIORef []
+ refDirsToClean <- newIORef emptyFM
return dflags{
- wayNames = ways,
- buildTag = build_tag,
- rtsBuildTag = rts_build_tag
- }
-
+ ways = ways,
+ buildTag = mkBuildTag (filter (not . wayRTSOnly) ways),
+ rtsBuildTag = mkBuildTag ways,
+ filesToClean = refFilesToClean,
+ dirsToClean = refDirsToClean
+ }
+
+-- | The normal 'DynFlags'. Note that they is not suitable for use in this form
+-- and must be fully initialized by 'GHC.newSession' first.
+defaultDynFlags :: DynFlags
defaultDynFlags =
DynFlags {
- ghcMode = OneShot,
- ghcLink = StaticLink,
- coreToDo = Nothing,
- stgToDo = Nothing,
- hscTarget = defaultHscTarget,
- hscOutName = "",
- extCoreName = "",
- verbosity = 0,
- optLevel = 0,
- maxSimplIterations = 4,
- ruleCheck = Nothing,
- stolen_x86_regs = 4,
- cmdlineHcIncludes = [],
- importPaths = ["."],
- mainModIs = mAIN,
- mainFunIs = Nothing,
-
- wayNames = panic "ways",
- buildTag = panic "buildTag",
- rtsBuildTag = panic "rtsBuildTag",
-
- objectDir = Nothing,
- hiDir = Nothing,
- stubDir = Nothing,
-
- objectSuf = phaseInputExt StopLn,
- hcSuf = phaseInputExt HCc,
- hiSuf = "hi",
-
- outputFile = Nothing,
- outputHi = Nothing,
- includePaths = [],
- libraryPaths = [],
- frameworkPaths = [],
- cmdlineFrameworks = [],
- tmpDir = cDEFAULT_TMPDIR,
-
- opt_L = [],
- opt_P = [],
- opt_F = [],
- opt_c = [],
- opt_a = [],
- opt_m = [],
- opt_l = [],
- opt_dll = [],
- opt_dep = [],
-
- pgm_L = panic "pgm_L",
- pgm_P = panic "pgm_P",
- pgm_F = panic "pgm_F",
- pgm_c = panic "pgm_c",
- pgm_m = panic "pgm_m",
- pgm_s = panic "pgm_s",
- pgm_a = panic "pgm_a",
- pgm_l = panic "pgm_l",
- pgm_dll = panic "pgm_mkdll",
-
- extraPkgConfs = [],
- packageFlags = [],
- pkgState = panic "pkgState",
-
- flags = [
- Opt_RecompChecking,
- Opt_ReadUserPackageConf,
-
- Opt_ImplicitPrelude,
- Opt_MonomorphismRestriction,
- Opt_Strictness,
- -- strictness is on by default, but this only
- -- applies to -O.
- Opt_CSE, -- similarly for CSE.
- Opt_FullLaziness, -- ...and for full laziness
-
- 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.
-
- Opt_DoAsmMangling,
-
- -- and the default no-optimisation options:
- Opt_IgnoreInterfacePragmas,
- Opt_OmitInterfacePragmas
-
- ] ++ standardWarnings,
-
- log_action = \severity srcSpan style msg ->
+ ghcMode = CompManager,
+ ghcLink = LinkBinary,
+ hscTarget = defaultHscTarget,
+ hscOutName = "",
+ extCoreName = "",
+ verbosity = 0,
+ optLevel = 0,
+ simplPhases = 2,
+ maxSimplIterations = 4,
+ shouldDumpSimplPhase = Nothing,
+ ruleCheck = Nothing,
+ specConstrThreshold = Just 200,
+ specConstrCount = Just 3,
+ liberateCaseThreshold = Just 200,
+ strictnessBefore = [],
+
+#ifndef OMIT_NATIVE_CODEGEN
+ targetPlatform = defaultTargetPlatform,
+#endif
+ stolen_x86_regs = 4,
+ cmdlineHcIncludes = [],
+ importPaths = ["."],
+ mainModIs = mAIN,
+ mainFunIs = Nothing,
+ ctxtStkDepth = mAX_CONTEXT_REDUCTION_DEPTH,
+
+ dphBackend = DPHPar,
+
+ thisPackage = mainPackageId,
+
+ objectDir = Nothing,
+ dylibInstallName = Nothing,
+ hiDir = Nothing,
+ stubDir = Nothing,
+
+ objectSuf = phaseInputExt StopLn,
+ hcSuf = phaseInputExt HCc,
+ hiSuf = "hi",
+
+ outputFile = Nothing,
+ outputHi = Nothing,
+ dynLibLoader = SystemDependent,
+ dumpPrefix = Nothing,
+ dumpPrefixForce = Nothing,
+ includePaths = [],
+ libraryPaths = [],
+ frameworkPaths = [],
+ cmdlineFrameworks = [],
+ tmpDir = cDEFAULT_TMPDIR,
+
+ hpcDir = ".hpc",
+
+ opt_L = [],
+ opt_P = (if opt_PIC
+ then ["-D__PIC__", "-U __PIC__"] -- this list is reversed
+ else []),
+ opt_F = [],
+ opt_c = [],
+ opt_a = [],
+ opt_m = [],
+ opt_l = [],
+ opt_windres = [],
+
+ extraPkgConfs = [],
+ packageFlags = [],
+ pkgDatabase = Nothing,
+ pkgState = panic "no package state yet: call GHC.setSessionDynFlags",
+ ways = panic "defaultDynFlags: No ways",
+ buildTag = panic "defaultDynFlags: No buildTag",
+ rtsBuildTag = panic "defaultDynFlags: No rtsBuildTag",
+ splitInfo = Nothing,
+ -- initSysTools fills all these in
+ ghcUsagePath = panic "defaultDynFlags: No ghciUsagePath",
+ ghciUsagePath = panic "defaultDynFlags: No ghciUsagePath",
+ topDir = panic "defaultDynFlags: No topDir",
+ systemPackageConfig = panic "no systemPackageConfig: call GHC.setSessionDynFlags",
+ pgm_L = panic "defaultDynFlags: No pgm_L",
+ pgm_P = panic "defaultDynFlags: No pgm_P",
+ pgm_F = panic "defaultDynFlags: No pgm_F",
+ pgm_c = panic "defaultDynFlags: No pgm_c",
+ pgm_m = panic "defaultDynFlags: No pgm_m",
+ pgm_s = panic "defaultDynFlags: No pgm_s",
+ pgm_a = panic "defaultDynFlags: No pgm_a",
+ pgm_l = panic "defaultDynFlags: No pgm_l",
+ pgm_dll = panic "defaultDynFlags: No pgm_dll",
+ pgm_T = panic "defaultDynFlags: No pgm_T",
+ pgm_sysman = panic "defaultDynFlags: No pgm_sysman",
+ pgm_windres = panic "defaultDynFlags: No pgm_windres",
+ -- end of initSysTools values
+ -- ghc -M values
+ depMakefile = "Makefile",
+ depIncludePkgDeps = False,
+ depExcludeMods = [],
+ depSuffixes = [],
+ -- end of ghc -M values
+ 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,
+
+ log_action = \severity srcSpan style msg ->
case severity of
- SevInfo -> hPutStrLn stderr (show (msg style))
- SevFatal -> hPutStrLn stderr (show (msg style))
- _ -> hPutStrLn stderr ('\n':show ((mkLocMessage srcSpan 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
+ -- converting to string first and using hPutStr would
+ -- just emit the low 8 bits of each unicode char.
}
-{-
- Verbosity levels:
-
- 0 | print errors & warnings only
+{-
+Note [Verbosity levels]
+~~~~~~~~~~~~~~~~~~~~~~~
+ 0 | print errors & warnings only
1 | minimal verbosity: print "compiling M ... done." for each module.
2 | equivalent to -dshow-passes
3 | equivalent to existing "ghc -v"
5 | "ghc -v -ddump-all"
-}
+-- | Test whether a 'DynFlag' is set
dopt :: DynFlag -> DynFlags -> Bool
dopt f dflags = f `elem` (flags dflags)
+-- | Set a 'DynFlag'
dopt_set :: DynFlags -> DynFlag -> DynFlags
dopt_set dfs f = dfs{ flags = f : flags dfs }
+-- | Unset a 'DynFlag'
dopt_unset :: DynFlags -> DynFlag -> DynFlags
dopt_unset dfs f = dfs{ flags = filter (/= f) (flags dfs) }
-getOpts :: DynFlags -> (DynFlags -> [a]) -> [a]
+-- | 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
+ -> [a] -- ^ Correctly ordered extracted options
getOpts dflags opts = reverse (opts dflags)
- -- We add to the options from the front, so we need to reverse the list
+ -- We add to the options from the front, so we need to reverse the list
+-- | Gets the verbosity flag for the current verbosity level. This is fed to
+-- other tools, so GHC-specific verbosity flags like @-ddump-most@ are not included
getVerbFlag :: DynFlags -> String
-getVerbFlag dflags
- | verbosity dflags >= 3 = "-v"
+getVerbFlag dflags
+ | verbosity dflags >= 3 = "-v"
| otherwise = ""
-setObjectDir f d = d{ objectDir = f}
-setHiDir f d = d{ hiDir = f}
-setStubDir f d = d{ stubDir = f}
+setObjectDir, setHiDir, setStubDir, setOutputDir, setDylibInstallName,
+ setObjectSuf, setHiSuf, setHcSuf, parseDynLibLoaderMode,
+ setPgmP, setPgmL, setPgmF, setPgmc, setPgmm, setPgms, setPgma, setPgml, setPgmdll, setPgmwindres,
+ addOptL, addOptP, addOptF, addOptc, addOptm, addOpta, addOptl, addOptwindres,
+ addCmdlineFramework, addHaddockOpts
+ :: String -> DynFlags -> DynFlags
+setOutputFile, setOutputHi, setDumpPrefixForce
+ :: Maybe String -> DynFlags -> DynFlags
+
+setObjectDir f d = d{ objectDir = Just f}
+setHiDir f d = d{ hiDir = Just f}
+setStubDir f d = d{ stubDir = Just f, includePaths = f : includePaths d }
+ -- -stubdir D adds an implicit -I D, so that gcc can find the _stub.h file
+ -- \#included from the .hc file when compiling with -fvia-C.
+setOutputDir f = setObjectDir f . setHiDir f . setStubDir f
+setDylibInstallName f d = d{ dylibInstallName = Just f}
setObjectSuf f d = d{ objectSuf = f}
setHiSuf f d = d{ hiSuf = f}
setOutputFile f d = d{ outputFile = f}
setOutputHi f d = d{ outputHi = f}
+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}
+
-- 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)}
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}
addOptL f d = d{ opt_L = f : opt_L d}
addOptP f d = d{ opt_P = f : opt_P 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}
-addOptdll f d = d{ opt_dll = f : opt_dll d}
-addOptdep f d = d{ opt_dep = f : opt_dep d}
+addOptwindres f d = d{ opt_windres = f : opt_windres d}
+
+setDepMakefile :: FilePath -> DynFlags -> DynFlags
+setDepMakefile f d = d { depMakefile = deOptDep f }
+
+setDepIncludePkgDeps :: Bool -> DynFlags -> DynFlags
+setDepIncludePkgDeps b d = d { depIncludePkgDeps = b }
+
+addDepExcludeMod :: String -> DynFlags -> DynFlags
+addDepExcludeMod m d
+ = d { depExcludeMods = mkModuleName (deOptDep m) : depExcludeMods d }
+
+addDepSuffix :: FilePath -> DynFlags -> DynFlags
+addDepSuffix s d = d { depSuffixes = deOptDep s : depSuffixes d }
+
+-- XXX Legacy code:
+-- We used to use "-optdep-flag -optdeparg", so for legacy applications
+-- we need to strip the "-optdep" off of the arg
+deOptDep :: String -> String
+deOptDep x = case stripPrefix "-optdep" x of
+ Just rest -> rest
+ Nothing -> x
addCmdlineFramework f d = d{ cmdlineFrameworks = f : cmdlineFrameworks d}
+addHaddockOpts f d = d{ haddockOptions = Just f}
+
-- -----------------------------------------------------------------------------
-- Command-line options
--- When invoking external tools as part of the compilation pipeline, we
+-- | When invoking external tools as part of the compilation pipeline, we
-- pass these a sequence of options on the command-line. Rather than
-- just using a list of Strings, we use a type that allows us to distinguish
--- between filepaths and 'other stuff'. [The reason being, of course, that
+-- between filepaths and 'other stuff'. The reason for this is that
-- this type gives us a handle on transforming filenames, and filenames only,
--- to whatever format they're expected to be on a particular platform.]
-
+-- to whatever format they're expected to be on a particular platform.
data Option
= FileOption -- an entry that _contains_ filename(s) / filepaths.
- String -- a non-filepath prefix that shouldn't be
- -- transformed (e.g., "/out=")
- String -- the filepath/filename portion
+ String -- a non-filepath prefix that shouldn't be
+ -- transformed (e.g., "/out=")
+ String -- the filepath/filename portion
| Option String
-
+
+showOpt :: Option -> String
+showOpt (FileOption pre f) = pre ++ f
+showOpt (Option s) = s
+
-----------------------------------------------------------------------------
-- Setting the optimisation level
updOptLevel :: Int -> DynFlags -> DynFlags
--- Set dynflags appropriate to the optimisation level
+-- ^ Sets the 'DynFlags' to be appropriate to the optimisation level
updOptLevel n dfs
- = if (n >= 1)
- then dfs2{ hscTarget = HscC, optLevel = n } -- turn on -fvia-C with -O
- else dfs2{ optLevel = n }
+ = dfs2{ optLevel = final_n }
where
+ final_n = max 0 (min 2 n) -- Clamp to 0 <= n <= 2
dfs1 = foldr (flip dopt_unset) dfs remove_dopts
dfs2 = foldr (flip dopt_set) dfs1 extra_dopts
- extra_dopts
- | n == 0 = opt_0_dopts
- | otherwise = opt_1_dopts
-
- remove_dopts
- | n == 0 = opt_1_dopts
- | otherwise = opt_0_dopts
-
-opt_0_dopts = [
- Opt_IgnoreInterfacePragmas,
- Opt_OmitInterfacePragmas
+ 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.
]
-opt_1_dopts = [
- Opt_IgnoreAsserts,
- Opt_DoEtaReduction,
- Opt_CaseMerge
- ]
-
-- -----------------------------------------------------------------------------
-- Standard sets of warning options
+standardWarnings :: [DynFlag]
standardWarnings
- = [ Opt_WarnDeprecations,
- Opt_WarnOverlappingPatterns,
- Opt_WarnMissingFields,
- Opt_WarnMissingMethods,
- Opt_WarnDuplicateExports
+ = [ 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_WarnDodgyImports
+ = 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_WarnTypeDefaults,
+ Opt_WarnNameShadowing,
+ Opt_WarnMissingSigs,
+ Opt_WarnHiShadows,
+ Opt_WarnOrphans,
+ Opt_WarnUnusedDoBind
]
--- -----------------------------------------------------------------------------
--- CoreToDo: abstraction of core-to-core passes to run.
-
-data CoreToDo -- These are diff core-to-core passes,
- -- which may be invoked in any order,
- -- as many times as you like.
-
- = CoreDoSimplify -- The core-to-core simplifier.
- SimplifierMode
- [SimplifierSwitch]
- -- Each run of the simplifier can take a different
- -- set of simplifier-specific flags.
- | CoreDoFloatInwards
- | CoreDoFloatOutwards FloatOutSwitches
- | CoreLiberateCase
- | CoreDoPrintCore
- | CoreDoStaticArgs
- | CoreDoStrictness
- | CoreDoWorkerWrapper
- | CoreDoSpecialising
- | CoreDoSpecConstr
- | CoreDoOldStrictness
- | CoreDoGlomBinds
- | CoreCSE
- | CoreDoRuleCheck Int{-CompilerPhase-} String -- Check for non-application of rules
- -- matching this string
-
- | CoreDoNothing -- useful when building up lists of these things
-
-data SimplifierMode -- See comments in SimplMonad
- = SimplGently
- | SimplPhase Int
-
-data SimplifierSwitch
- = MaxSimplifierIterations Int
- | NoCaseOfCase
-
-data FloatOutSwitches
- = FloatOutSw Bool -- True <=> float lambdas to top level
- Bool -- True <=> float constants to top level,
- -- even if they do not escape a lambda
-
-
--- The core-to-core pass ordering is derived from the DynFlags:
-
-getCoreToDo :: DynFlags -> [CoreToDo]
-getCoreToDo dflags
- | Just todo <- coreToDo dflags = todo -- set explicitly by user
- | otherwise = core_todo
- where
- opt_level = optLevel dflags
- max_iter = maxSimplIterations dflags
- strictness = dopt Opt_Strictness dflags
- full_laziness = dopt Opt_FullLaziness dflags
- cse = dopt Opt_CSE dflags
- rule_check = ruleCheck dflags
-
- core_todo =
- if opt_level == 0 then
- [
- CoreDoSimplify (SimplPhase 0) [
- MaxSimplifierIterations max_iter
- ]
+-- minuswRemovesOpts should be every warning option
+minuswRemovesOpts :: [DynFlag]
+minuswRemovesOpts
+ = minusWallOpts ++
+ [Opt_WarnImplicitPrelude,
+ Opt_WarnIncompletePatternsRecUpd,
+ Opt_WarnSimplePatterns,
+ Opt_WarnMonomorphism,
+ Opt_WarnUnrecognisedPragmas,
+ Opt_WarnTabs
]
- else {- opt_level >= 1 -} [
-
- -- initial simplify: mk specialiser happy: minimum effort please
- CoreDoSimplify SimplGently [
- -- Simplify "gently"
- -- Don't inline anything till full laziness has bitten
- -- In particular, inlining wrappers inhibits floating
- -- e.g. ...(case f x of ...)...
- -- ==> ...(case (case x of I# x# -> fw x#) of ...)...
- -- ==> ...(case x of I# x# -> case fw x# of ...)...
- -- and now the redex (f x) isn't floatable any more
- -- Similarly, don't apply any rules until after full
- -- laziness. Notably, list fusion can prevent floating.
-
- NoCaseOfCase,
- -- Don't do case-of-case transformations.
- -- This makes full laziness work better
- MaxSimplifierIterations max_iter
- ],
-
- -- Specialisation is best done before full laziness
- -- so that overloaded functions have all their dictionary lambdas manifest
- CoreDoSpecialising,
-
- if full_laziness then CoreDoFloatOutwards (FloatOutSw False False)
- else CoreDoNothing,
-
- CoreDoFloatInwards,
-
- CoreDoSimplify (SimplPhase 2) [
- -- Want to run with inline phase 2 after the specialiser to give
- -- maximum chance for fusion to work before we inline build/augment
- -- in phase 1. This made a difference in 'ansi' where an
- -- overloaded function wasn't inlined till too late.
- MaxSimplifierIterations max_iter
- ],
- case rule_check of { Just pat -> CoreDoRuleCheck 2 pat; Nothing -> CoreDoNothing },
-
- CoreDoSimplify (SimplPhase 1) [
- -- Need inline-phase2 here so that build/augment get
- -- inlined. I found that spectral/hartel/genfft lost some useful
- -- strictness in the function sumcode' if augment is not inlined
- -- before strictness analysis runs
- MaxSimplifierIterations max_iter
- ],
- case rule_check of { Just pat -> CoreDoRuleCheck 1 pat; Nothing -> CoreDoNothing },
-
- CoreDoSimplify (SimplPhase 0) [
- -- Phase 0: allow all Ids to be inlined now
- -- This gets foldr inlined before strictness analysis
-
- MaxSimplifierIterations 3
- -- At least 3 iterations because otherwise we land up with
- -- huge dead expressions because of an infelicity in the
- -- simpifier.
- -- let k = BIG in foldr k z xs
- -- ==> let k = BIG in letrec go = \xs -> ...(k x).... in go xs
- -- ==> let k = BIG in letrec go = \xs -> ...(BIG x).... in go xs
- -- Don't stop now!
-
- ],
- case rule_check of { Just pat -> CoreDoRuleCheck 0 pat; Nothing -> CoreDoNothing },
-
-#ifdef OLD_STRICTNESS
- CoreDoOldStrictness
-#endif
- if strictness then CoreDoStrictness else CoreDoNothing,
- CoreDoWorkerWrapper,
- CoreDoGlomBinds,
-
- CoreDoSimplify (SimplPhase 0) [
- MaxSimplifierIterations max_iter
- ],
-
- if full_laziness then
- CoreDoFloatOutwards (FloatOutSw False -- Not lambdas
- True) -- Float constants
- else CoreDoNothing,
- -- nofib/spectral/hartel/wang doubles in speed if you
- -- do full laziness late in the day. It only happens
- -- after fusion and other stuff, so the early pass doesn't
- -- catch it. For the record, the redex is
- -- f_el22 (f_el21 r_midblock)
-
-
- -- We want CSE to follow the final full-laziness pass, because it may
- -- succeed in commoning up things floated out by full laziness.
- -- CSE used to rely on the no-shadowing invariant, but it doesn't any more
-
- if cse then CoreCSE else CoreDoNothing,
-
- CoreDoFloatInwards,
-
--- Case-liberation for -O2. This should be after
--- strictness analysis and the simplification which follows it.
-
- case rule_check of { Just pat -> CoreDoRuleCheck 0 pat; Nothing -> CoreDoNothing },
-
- if opt_level >= 2 then
- CoreLiberateCase
- else
- CoreDoNothing,
- if opt_level >= 2 then
- CoreDoSpecConstr
- else
- CoreDoNothing,
-
- -- Final clean-up simplification:
- CoreDoSimplify (SimplPhase 0) [
- MaxSimplifierIterations max_iter
- ]
- ]
-- -----------------------------------------------------------------------------
-- StgToDo: abstraction of stg-to-stg passes to run.
getStgToDo :: DynFlags -> [StgToDo]
getStgToDo dflags
- | Just todo <- stgToDo dflags = todo -- set explicitly by user
- | otherwise = todo2
+ = todo2
where
- stg_stats = dopt Opt_StgStats dflags
+ stg_stats = dopt Opt_StgStats dflags
- todo1 = if stg_stats then [D_stg_stats] else []
+ todo1 = if stg_stats then [D_stg_stats] else []
- todo2 | WayProf `elem` wayNames dflags
- = StgDoMassageForProfiling : todo1
- | otherwise
- = todo1
+ todo2 | WayProf `elem` wayNames dflags
+ = StgDoMassageForProfiling : todo1
+ | otherwise
+ = todo1
-- -----------------------------------------------------------------------------
-- DynFlags parser
allFlags :: [String]
allFlags = map ('-':) $
- [ name | (name, optkind) <- dynamic_flags, ok optkind ] ++
+ [ flagName flag | flag <- dynamic_flags, ok (flagOptKind flag) ] ++
map ("fno-"++) flags ++
- map ("f"++) flags
+ map ("f"++) flags ++
+ map ("X"++) supportedLanguages ++
+ map ("XNo"++) supportedLanguages
where ok (PrefixPred _ _) = False
ok _ = True
- flags = map fst fFlags
+ flags = [ name | (name, _, _) <- fFlags ]
-dynamic_flags :: [(String, OptKind DynP)]
+dynamic_flags :: [Flag DynP]
dynamic_flags = [
- ( "n" , NoArg (setDynFlag Opt_DryRun) )
- , ( "cpp" , NoArg (setDynFlag Opt_Cpp))
- , ( "F" , NoArg (setDynFlag Opt_Pp))
- , ( "#include" , HasArg (addCmdlineHCInclude) )
- , ( "v" , OptPrefix (setVerbosity) )
+ 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))
+ (Deprecated "No longer has any effect")
+ , Flag "v" (OptIntSuffix setVerbosity) Supported
------- Specific phases --------------------------------------------
- , ( "pgmL" , HasArg (upd . setPgmL) )
- , ( "pgmP" , HasArg (upd . setPgmP) )
- , ( "pgmF" , HasArg (upd . setPgmF) )
- , ( "pgmc" , HasArg (upd . setPgmc) )
- , ( "pgmm" , HasArg (upd . setPgmm) )
- , ( "pgms" , HasArg (upd . setPgms) )
- , ( "pgma" , HasArg (upd . setPgma) )
- , ( "pgml" , HasArg (upd . setPgml) )
- , ( "pgmdll" , HasArg (upd . setPgmdll) )
-
- , ( "optL" , HasArg (upd . addOptL) )
- , ( "optP" , HasArg (upd . addOptP) )
- , ( "optF" , HasArg (upd . addOptF) )
- , ( "optc" , HasArg (upd . addOptc) )
- , ( "optm" , HasArg (upd . addOptm) )
- , ( "opta" , HasArg (upd . addOpta) )
- , ( "optl" , HasArg (upd . addOptl) )
- , ( "optdll" , HasArg (upd . addOptdll) )
- , ( "optdep" , HasArg (upd . addOptdep) )
-
- , ( "split-objs" , NoArg (if can_split
- then setDynFlag Opt_SplitObjs
- else return ()) )
-
- -------- Linking ----------------------------------------------------
- , ( "c" , NoArg (upd $ \d -> d{ ghcLink=NoLink } ))
- , ( "no-link" , NoArg (upd $ \d -> d{ ghcLink=NoLink } )) -- Dep.
- , ( "-mk-dll" , NoArg (upd $ \d -> d{ ghcLink=MkDLL } ))
-
- ------- Libraries ---------------------------------------------------
- , ( "L" , Prefix addLibraryPath )
- , ( "l" , AnySuffix (\s -> do upd (addOptl s)
- upd (addOptdll s)))
-
- ------- Frameworks --------------------------------------------------
+ , 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 "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 "split-objs"
+ (NoArg (if can_split then setDynFlag Opt_SplitObjs else return ()))
+ Supported
+
+ -------- 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")
+
+ -------- Linking ----------------------------------------------------
+ , Flag "c" (NoArg (upd $ \d -> d{ ghcLink=NoLink } ))
+ Supported
+ , Flag "no-link" (NoArg (upd $ \d -> d{ ghcLink=NoLink } ))
+ (Deprecated "Use -c instead")
+ , Flag "shared" (NoArg (upd $ \d -> d{ ghcLink=LinkDynLib } ))
+ Supported
+ , Flag "dynload" (HasArg (upd . parseDynLibLoaderMode))
+ Supported
+ , Flag "dylib-install-name" (HasArg (upd . setDylibInstallName)) Supported
+
+ ------- Libraries ---------------------------------------------------
+ , Flag "L" (Prefix addLibraryPath ) Supported
+ , Flag "l" (AnySuffix (\s -> do upd (addOptl s))) Supported
+
+ ------- Frameworks --------------------------------------------------
-- -framework-path should really be -F ...
- , ( "framework-path" , HasArg addFrameworkPath )
- , ( "framework" , HasArg (upd . addCmdlineFramework) )
-
- ------- Output Redirection ------------------------------------------
- , ( "odir" , HasArg (upd . setObjectDir . Just))
- , ( "o" , SepArg (upd . setOutputFile . Just))
- , ( "ohi" , HasArg (upd . setOutputHi . Just ))
- , ( "osuf" , HasArg (upd . setObjectSuf))
- , ( "hcsuf" , HasArg (upd . setHcSuf))
- , ( "hisuf" , HasArg (upd . setHiSuf))
- , ( "hidir" , HasArg (upd . setHiDir . Just))
- , ( "tmpdir" , HasArg (upd . setTmpDir))
- , ( "stubdir" , HasArg (upd . setStubDir . Just))
-
- ------- Keeping temporary files -------------------------------------
- , ( "keep-hc-file" , AnySuffix (\_ -> setDynFlag Opt_KeepHcFiles))
- , ( "keep-s-file" , AnySuffix (\_ -> setDynFlag Opt_KeepSFiles))
- , ( "keep-raw-s-file", AnySuffix (\_ -> setDynFlag Opt_KeepRawSFiles))
- , ( "keep-tmp-files" , AnySuffix (\_ -> setDynFlag Opt_KeepTmpFiles))
-
- ------- Miscellaneous ----------------------------------------------
- , ( "no-hs-main" , NoArg (setDynFlag Opt_NoHsMain))
- , ( "main-is" , SepArg setMainIs )
-
- ------- recompilation checker --------------------------------------
- , ( "recomp" , NoArg (setDynFlag Opt_RecompChecking) )
- , ( "no-recomp" , NoArg (unSetDynFlag Opt_RecompChecking) )
-
- ------- Packages ----------------------------------------------------
- , ( "package-conf" , HasArg extraPkgConf_ )
- , ( "no-user-package-conf", NoArg (unSetDynFlag Opt_ReadUserPackageConf) )
- , ( "package-name" , HasArg ignorePackage ) -- for compatibility
- , ( "package" , HasArg exposePackage )
- , ( "hide-package" , HasArg hidePackage )
- , ( "hide-all-packages", NoArg (setDynFlag Opt_HideAllPackages) )
- , ( "ignore-package" , HasArg ignorePackage )
- , ( "syslib" , HasArg exposePackage ) -- for compatibility
-
- ------ HsCpp opts ---------------------------------------------------
- , ( "D", AnySuffix (upd . addOptP) )
- , ( "U", AnySuffix (upd . addOptP) )
-
- ------- Include/Import Paths ----------------------------------------
- , ( "I" , Prefix addIncludePath)
- , ( "i" , OptPrefix addImportPath )
-
- ------ Debugging ----------------------------------------------------
- , ( "dstg-stats", NoArg (setDynFlag Opt_StgStats))
-
- , ( "ddump-cmm", setDumpFlag Opt_D_dump_cmm)
- , ( "ddump-asm", setDumpFlag Opt_D_dump_asm)
- , ( "ddump-cpranal", setDumpFlag Opt_D_dump_cpranal)
- , ( "ddump-deriv", setDumpFlag Opt_D_dump_deriv)
- , ( "ddump-ds", setDumpFlag Opt_D_dump_ds)
- , ( "ddump-flatC", setDumpFlag Opt_D_dump_flatC)
- , ( "ddump-foreign", setDumpFlag Opt_D_dump_foreign)
- , ( "ddump-inlinings", setDumpFlag Opt_D_dump_inlinings)
- , ( "ddump-occur-anal", setDumpFlag Opt_D_dump_occur_anal)
- , ( "ddump-parsed", setDumpFlag Opt_D_dump_parsed)
- , ( "ddump-rn", setDumpFlag Opt_D_dump_rn)
- , ( "ddump-simpl", setDumpFlag Opt_D_dump_simpl)
- , ( "ddump-simpl-iterations", setDumpFlag Opt_D_dump_simpl_iterations)
- , ( "ddump-spec", setDumpFlag Opt_D_dump_spec)
- , ( "ddump-prep", setDumpFlag Opt_D_dump_prep)
- , ( "ddump-stg", setDumpFlag Opt_D_dump_stg)
- , ( "ddump-stranal", setDumpFlag Opt_D_dump_stranal)
- , ( "ddump-tc", setDumpFlag Opt_D_dump_tc)
- , ( "ddump-types", setDumpFlag Opt_D_dump_types)
- , ( "ddump-rules", setDumpFlag Opt_D_dump_rules)
- , ( "ddump-cse", setDumpFlag Opt_D_dump_cse)
- , ( "ddump-worker-wrapper", setDumpFlag Opt_D_dump_worker_wrapper)
- , ( "ddump-rn-trace", NoArg (setDynFlag Opt_D_dump_rn_trace))
- , ( "ddump-if-trace", NoArg (setDynFlag Opt_D_dump_if_trace))
- , ( "ddump-tc-trace", setDumpFlag Opt_D_dump_tc_trace)
- , ( "ddump-splices", setDumpFlag Opt_D_dump_splices)
- , ( "ddump-rn-stats", NoArg (setDynFlag Opt_D_dump_rn_stats))
- , ( "ddump-opt-cmm", setDumpFlag Opt_D_dump_opt_cmm)
- , ( "ddump-simpl-stats", setDumpFlag Opt_D_dump_simpl_stats)
- , ( "ddump-bcos", setDumpFlag Opt_D_dump_BCOs)
- , ( "dsource-stats", setDumpFlag Opt_D_source_stats)
- , ( "dverbose-core2core", setDumpFlag Opt_D_verbose_core2core)
- , ( "dverbose-stg2stg", setDumpFlag Opt_D_verbose_stg2stg)
- , ( "ddump-hi-diffs", NoArg (setDynFlag Opt_D_dump_hi_diffs))
- , ( "ddump-hi", setDumpFlag Opt_D_dump_hi)
- , ( "ddump-minimal-imports", NoArg (setDynFlag Opt_D_dump_minimal_imports))
- , ( "ddump-vect", setDumpFlag Opt_D_dump_vect)
- , ( "dcore-lint", NoArg (setDynFlag Opt_DoCoreLinting))
- , ( "dstg-lint", NoArg (setDynFlag Opt_DoStgLinting))
- , ( "dcmm-lint", NoArg (setDynFlag Opt_DoCmmLinting))
- , ( "dshow-passes", NoArg (do unSetDynFlag Opt_RecompChecking
- setVerbosity "2") )
- , ( "dfaststring-stats", NoArg (setDynFlag Opt_D_faststring_stats))
-
- ------ Machine dependant (-m<blah>) stuff ---------------------------
-
- , ( "monly-2-regs", NoArg (upd (\s -> s{stolen_x86_regs = 2}) ))
- , ( "monly-3-regs", NoArg (upd (\s -> s{stolen_x86_regs = 3}) ))
- , ( "monly-4-regs", NoArg (upd (\s -> s{stolen_x86_regs = 4}) ))
-
- ------ Warning opts -------------------------------------------------
- , ( "W" , NoArg (mapM_ setDynFlag minusWOpts) )
- , ( "Werror" , NoArg (setDynFlag Opt_WarnIsError) )
- , ( "Wall" , NoArg (mapM_ setDynFlag minusWallOpts) )
- , ( "Wnot" , NoArg (mapM_ unSetDynFlag minusWallOpts) ) /* DEPREC */
- , ( "w" , NoArg (mapM_ unSetDynFlag minusWallOpts) )
-
- ------ Optimisation flags ------------------------------------------
- , ( "O" , NoArg (upd (setOptLevel 1)))
- , ( "Onot" , NoArg (upd (setOptLevel 0)))
- , ( "O" , PrefixPred (all isDigit)
- (\f -> upd (setOptLevel (read f))))
-
- , ( "fmax-simplifier-iterations",
- PrefixPred (all isDigit)
- (\n -> upd (\dfs ->
- dfs{ maxSimplIterations = read n })) )
-
- , ( "frule-check",
- SepArg (\s -> upd (\dfs -> dfs{ ruleCheck = Just s })))
+ , Flag "framework-path" (HasArg addFrameworkPath ) Supported
+ , Flag "framework" (HasArg (upd . addCmdlineFramework)) Supported
+
+ ------- 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
+
+ ------- 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
+ -- This only makes sense as plural
+ , Flag "keep-tmp-files" (NoArg (setDynFlag Opt_KeepTmpFiles)) Supported
+
+ ------- Miscellaneous ----------------------------------------------
+ , Flag "no-auto-link-packages" (NoArg (unSetDynFlag Opt_AutoLinkPackages)) Supported
+ , Flag "no-hs-main" (NoArg (setDynFlag Opt_NoHsMain)) 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
+
+ ------- 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")
+
+ ------ HsCpp opts ---------------------------------------------------
+ , Flag "D" (AnySuffix (upd . addOptP)) Supported
+ , Flag "U" (AnySuffix (upd . addOptP)) Supported
+
+ ------- Include/Import Paths ----------------------------------------
+ , Flag "I" (Prefix addIncludePath) Supported
+ , Flag "i" (OptPrefix addImportPath ) Supported
+
+ ------ Debugging ----------------------------------------------------
+ , Flag "dstg-stats" (NoArg (setDynFlag Opt_StgStats)) Supported
+
+ , 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-stats" (setDumpFlag Opt_D_dump_asm_stats)
+ Supported
+ , Flag "ddump-asm-expanded" (setDumpFlag Opt_D_dump_asm_expanded)
+ 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 "dfaststring-stats" (NoArg (setDynFlag Opt_D_faststring_stats))
+ Supported
+
+ ------ Machine dependant (-m<blah>) 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
+
+ ------ 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 "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" (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
+
+ ------ 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
+
+ ------ DPH flags ----------------------------------------------------
+
+ , Flag "fdph-seq"
+ (NoArg (setDPHBackend DPHSeq))
+ Supported
+ , Flag "fdph-par"
+ (NoArg (setDPHBackend DPHPar))
+ Supported
+ , Flag "fdph-this"
+ (NoArg (setDPHBackend DPHThis))
+ Supported
------ Compiler flags -----------------------------------------------
- , ( "fno-code", NoArg (setTarget HscNothing))
- , ( "fasm", AnySuffix (\_ -> setTarget HscAsm) )
- , ( "fvia-c", NoArg (setTarget HscC) )
- , ( "fvia-C", NoArg (setTarget HscC) )
- , ( "filx", NoArg (setTarget HscILX) )
+ , Flag "fasm" (NoArg (setObjTarget HscAsm)) Supported
+ , Flag "fvia-c" (NoArg (setObjTarget HscC)) Supported
+ , Flag "fvia-C" (NoArg (setObjTarget HscC)) Supported
- , ( "fglasgow-exts", NoArg (mapM_ setDynFlag glasgowExtsFlags) )
- , ( "fno-glasgow-exts", NoArg (mapM_ unSetDynFlag glasgowExtsFlags) )
+ , Flag "fno-code" (NoArg (setTarget HscNothing)) Supported
+ , Flag "fbyte-code" (NoArg (setTarget HscInterpreted)) Supported
+ , Flag "fobject-code" (NoArg (setTarget defaultHscTarget)) Supported
- -- the rest of the -f* and -fno-* flags
- , ( "fno-", PrefixPred (\f -> isFFlag f) (\f -> unSetDynFlag (getFFlag f)) )
- , ( "f", PrefixPred (\f -> isFFlag f) (\f -> setDynFlag (getFFlag f)) )
+ , Flag "fglasgow-exts" (NoArg (mapM_ setDynFlag glasgowExtsFlags))
+ Supported
+ , Flag "fno-glasgow-exts" (NoArg (mapM_ unSetDynFlag glasgowExtsFlags))
+ Supported
]
+ ++ map (mkFlag True "f" setDynFlag ) fFlags
+ ++ map (mkFlag False "fno-" unSetDynFlag) fFlags
+ ++ map (mkFlag True "X" setDynFlag ) xFlags
+ ++ map (mkFlag False "XNo" unSetDynFlag) xFlags
--- these -f<blah> flags can all be reversed with -fno-<blah>
+package_flags :: [Flag DynP]
+package_flags = [
+ ------- Packages ----------------------------------------------------
+ Flag "package-conf" (HasArg extraPkgConf_) Supported
+ , 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")
+ ]
+
+mkFlag :: Bool -- ^ 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")
+ where
+ flag | turn_on = lang
+ | otherwise = "No"++lang
+
+useInstead :: String -> Bool -> Deprecated
+useInstead flag turn_on
+ = Deprecated ("Use -f" ++ no ++ flag ++ " instead")
+ where
+ no = if turn_on then "" else "no-"
+-- | These @-f\<blah\>@ flags can all be reversed with @-fno-\<blah\>@
+fFlags :: [(String, DynFlag, Bool -> Deprecated)]
fFlags = [
- ( "warn-duplicate-exports", Opt_WarnDuplicateExports ),
- ( "warn-hi-shadowing", Opt_WarnHiShadows ),
- ( "warn-incomplete-patterns", Opt_WarnIncompletePatterns ),
- ( "warn-incomplete-record-updates", Opt_WarnIncompletePatternsRecUpd ),
- ( "warn-missing-fields", Opt_WarnMissingFields ),
- ( "warn-missing-methods", Opt_WarnMissingMethods ),
- ( "warn-missing-signatures", Opt_WarnMissingSigs ),
- ( "warn-name-shadowing", Opt_WarnNameShadowing ),
- ( "warn-overlapping-patterns", Opt_WarnOverlappingPatterns ),
- ( "warn-simple-patterns", Opt_WarnSimplePatterns ),
- ( "warn-type-defaults", Opt_WarnTypeDefaults ),
- ( "warn-unused-binds", Opt_WarnUnusedBinds ),
- ( "warn-unused-imports", Opt_WarnUnusedImports ),
- ( "warn-unused-matches", Opt_WarnUnusedMatches ),
- ( "warn-deprecations", Opt_WarnDeprecations ),
- ( "warn-orphans", Opt_WarnOrphans ),
- ( "fi", Opt_FFI ), -- support `-ffi'...
- ( "ffi", Opt_FFI ), -- ...and also `-fffi'
- ( "arrows", Opt_Arrows ), -- arrow syntax
- ( "parr", Opt_PArr ),
- ( "th", Opt_TH ),
- ( "implicit-prelude", Opt_ImplicitPrelude ),
- ( "scoped-type-variables", Opt_ScopedTypeVariables ),
- ( "bang-patterns", Opt_BangPatterns ),
- ( "monomorphism-restriction", Opt_MonomorphismRestriction ),
- ( "implicit-params", Opt_ImplicitParams ),
- ( "allow-overlapping-instances", Opt_AllowOverlappingInstances ),
- ( "allow-undecidable-instances", Opt_AllowUndecidableInstances ),
- ( "allow-incoherent-instances", Opt_AllowIncoherentInstances ),
- ( "generics", Opt_Generics ),
- ( "strictness", Opt_Strictness ),
- ( "full-laziness", Opt_FullLaziness ),
- ( "cse", Opt_CSE ),
- ( "ignore-interface-pragmas", Opt_IgnoreInterfacePragmas ),
- ( "omit-interface-pragmas", Opt_OmitInterfacePragmas ),
- ( "do-lambda-eta-expansion", Opt_DoLambdaEtaExpansion ),
- ( "ignore-asserts", Opt_IgnoreAsserts ),
- ( "ignore-breakpoints", Opt_IgnoreBreakpoints),
- ( "do-eta-reduction", Opt_DoEtaReduction ),
- ( "case-merge", Opt_CaseMerge ),
- ( "unbox-strict-fields", Opt_UnboxStrictFields ),
- ( "excess-precision", Opt_ExcessPrecision ),
- ( "asm-mangling", Opt_DoAsmMangling )
+ ( "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 ),
+ ( "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 ),
+ ( "th", Opt_TemplateHaskell,
+ deprecatedForLanguage "TemplateHaskell" ),
+ ( "fi", Opt_ForeignFunctionInterface,
+ deprecatedForLanguage "ForeignFunctionInterface" ),
+ ( "ffi", Opt_ForeignFunctionInterface,
+ deprecatedForLanguage "ForeignFunctionInterface" ),
+ ( "arrows", Opt_Arrows,
+ deprecatedForLanguage "Arrows" ),
+ ( "generics", Opt_Generics,
+ deprecatedForLanguage "Generics" ),
+ ( "implicit-prelude", Opt_ImplicitPrelude,
+ deprecatedForLanguage "ImplicitPrelude" ),
+ ( "bang-patterns", Opt_BangPatterns,
+ deprecatedForLanguage "BangPatterns" ),
+ ( "monomorphism-restriction", Opt_MonomorphismRestriction,
+ deprecatedForLanguage "MonomorphismRestriction" ),
+ ( "mono-pat-binds", Opt_MonoPatBinds,
+ deprecatedForLanguage "MonoPatBinds" ),
+ ( "extended-default-rules", Opt_ExtendedDefaultRules,
+ deprecatedForLanguage "ExtendedDefaultRules" ),
+ ( "implicit-params", Opt_ImplicitParams,
+ deprecatedForLanguage "ImplicitParams" ),
+ ( "scoped-type-variables", Opt_ScopedTypeVariables,
+ deprecatedForLanguage "ScopedTypeVariables" ),
+ ( "parr", Opt_PArr,
+ deprecatedForLanguage "PArr" ),
+ ( "allow-overlapping-instances", Opt_OverlappingInstances,
+ deprecatedForLanguage "OverlappingInstances" ),
+ ( "allow-undecidable-instances", Opt_UndecidableInstances,
+ deprecatedForLanguage "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 )
]
-glasgowExtsFlags = [
- Opt_GlasgowExts,
- Opt_FFI,
- Opt_TH,
- Opt_ImplicitParams,
- Opt_ScopedTypeVariables,
- Opt_BangPatterns ]
+supportedLanguages :: [String]
+supportedLanguages = [ name | (name, _, _) <- xFlags ]
+
+-- This may contain duplicates
+languageOptions :: [DynFlag]
+languageOptions = [ dynFlag | (_, dynFlag, _) <- xFlags ]
+
+-- | These -X<blah> flags can all be reversed with -XNo<blah>
+xFlags :: [(String, DynFlag, Bool -> Deprecated)]
+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 ),
+ ( "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 ),
+ ( "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 ),
+
+ ( "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 )
+ ]
+
+impliedFlags :: [(DynFlag, DynFlag)]
+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
+ -- all over the place
+
+ , (Opt_ScopedTypeVariables, Opt_RelaxedPolyRec) -- Ditto for scoped type variables; see
+ -- Note [Scoped tyvars] in TcBinds
+ , (Opt_ImpredicativeTypes, 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)
+ ]
-isFFlag f = f `elem` (map fst fFlags)
-getFFlag f = fromJust (lookup f fFlags)
+glasgowExtsFlags :: [DynFlag]
+glasgowExtsFlags = [
+ Opt_PrintExplicitForalls
+ , Opt_ForeignFunctionInterface
+ , Opt_UnliftedFFITypes
+ , Opt_GADTs
+ , Opt_ImplicitParams
+ , Opt_ScopedTypeVariables
+ , Opt_UnboxedTuples
+ , Opt_TypeSynonymInstances
+ , Opt_StandaloneDeriving
+ , Opt_DeriveDataTypeable
+ , Opt_DeriveFunctor
+ , Opt_DeriveFoldable
+ , Opt_DeriveTraversable
+ , Opt_FlexibleContexts
+ , Opt_FlexibleInstances
+ , Opt_ConstrainedClassMethods
+ , Opt_MultiParamTypeClasses
+ , Opt_FunctionalDependencies
+ , Opt_MagicHash
+ , Opt_PolymorphicComponents
+ , Opt_ExistentialQuantification
+ , Opt_UnicodeSyntax
+ , Opt_PostfixOperators
+ , Opt_PatternGuards
+ , Opt_LiberalTypeSynonyms
+ , Opt_RankNTypes
+ , Opt_TypeOperators
+ , Opt_DoRec
+ , Opt_ParallelListComp
+ , Opt_EmptyDataDecls
+ , Opt_KindSignatures
+ , Opt_GeneralizedNewtypeDeriving
+ , Opt_TypeFamilies ]
-- -----------------------------------------------------------------------------
-- Parsing the dynamic flags.
-parseDynamicFlags :: DynFlags -> [String] -> IO (DynFlags,[String])
-parseDynamicFlags dflags args = do
- let ((leftover,errs),dflags')
- = runCmdLine (processArgs dynamic_flags args) dflags
- when (not (null errs)) $ do
- throwDyn (UsageError (unlines errs))
- return (dflags', leftover)
-
+-- | 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) =
+ 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)
+
+ return (dflags2, leftover, pic_warns ++ warns)
type DynP = CmdLineP DynFlags
upd :: (DynFlags -> DynFlags) -> DynP ()
-upd f = do
+upd f = do
dfs <- getCmdLineState
putCmdLineState $! (f dfs)
+--------------------------
setDynFlag, unSetDynFlag :: DynFlag -> DynP ()
-setDynFlag f = upd (\dfs -> dopt_set dfs f)
+setDynFlag f = do { upd (\dfs -> dopt_set dfs f)
+ ; mapM_ setDynFlag deps }
+ where
+ deps = [ d | (f', 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)
+
unSetDynFlag f = upd (\dfs -> dopt_unset dfs f)
+--------------------------
setDumpFlag :: DynFlag -> OptKind DynP
-setDumpFlag dump_flag
- = NoArg (unSetDynFlag Opt_RecompChecking >> setDynFlag dump_flag)
- -- Whenver we -ddump, switch off the recompilation checker,
- -- else you don't see the dump!
+setDumpFlag dump_flag
+ = NoArg (do { setDynFlag dump_flag
+ ; when want_recomp forceRecompile })
+ where
+ -- Certain dumpy-things are really interested in what's going
+ -- on during recompilation checking, so in those cases we
+ -- don't want to turn it off.
+ want_recomp = dump_flag `notElem` [Opt_D_dump_if_trace,
+ Opt_D_dump_hi_diffs]
+
+forceRecompile :: DynP ()
+-- Whenver we -ddump, force recompilation (by switching off the
+-- 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
+ ; when (force_recomp dfs) (setDynFlag Opt_ForceRecomp) }
+ where
+ force_recomp dfs = isOneShot (ghcMode dfs)
+
+setVerboseCore2Core :: DynP ()
+setVerboseCore2Core = do forceRecompile
+ setDynFlag Opt_D_verbose_core2core
+ upd (\dfs -> dfs { shouldDumpSimplPhase = Nothing })
+
+
+setDumpSimplPhases :: String -> DynP ()
+setDumpSimplPhases s = do forceRecompile
+ upd (\dfs -> dfs { shouldDumpSimplPhase = Just spec })
+ where
+ spec = case s of { ('=' : s') -> s'; _ -> s }
-setVerbosity "" = upd (\dfs -> dfs{ verbosity = 3 })
-setVerbosity n
- | all isDigit n = upd (\dfs -> dfs{ verbosity = read n })
- | otherwise = throwDyn (UsageError "can't parse verbosity flag (-v<n>)")
+setVerbosity :: Maybe Int -> DynP ()
+setVerbosity mb_n = upd (\dfs -> dfs{ verbosity = mb_n `orElse` 3 })
+addCmdlineHCInclude :: String -> DynP ()
addCmdlineHCInclude a = upd (\s -> s{cmdlineHcIncludes = a : cmdlineHcIncludes s})
+extraPkgConf_ :: FilePath -> DynP ()
extraPkgConf_ p = upd (\s -> s{ extraPkgConfs = p : extraPkgConfs s })
-exposePackage p =
+exposePackage, exposePackageId, hidePackage, ignorePackage :: String -> DynP ()
+exposePackage p =
upd (\s -> s{ packageFlags = ExposePackage p : packageFlags s })
-hidePackage p =
+exposePackageId p =
+ upd (\s -> s{ packageFlags = ExposePackageId p : packageFlags s })
+hidePackage p =
upd (\s -> s{ packageFlags = HidePackage p : packageFlags s })
-ignorePackage p =
+ignorePackage p =
upd (\s -> s{ packageFlags = IgnorePackage p : packageFlags s })
--- we can only switch between HscC, HscAsmm, and HscILX with dynamic flags
--- (-fvia-C, -fasm, -filx respectively).
-setTarget l = upd (\dfs -> case hscTarget dfs of
- HscC -> dfs{ hscTarget = l }
- HscAsm -> dfs{ hscTarget = l }
- HscILX -> dfs{ hscTarget = l }
- _ -> dfs)
+setPackageName :: String -> DynFlags -> DynFlags
+setPackageName p s = s{ thisPackage = stringToPackageId p }
+
+-- If we're linking a binary, then only targets that produce object
+-- code are allowed (requests for other target types are ignored).
+setTarget :: HscTarget -> DynP ()
+setTarget l = upd set
+ where
+ set dfs
+ | ghcLink dfs /= LinkBinary || isObjectTarget l = dfs{ hscTarget = l }
+ | otherwise = dfs
+
+-- Changes the target only if we're compiling object code. This is
+-- used by -fasm and -fvia-C, which switch from one to the other, but
+-- not from bytecode to object-code. The idea is that -fasm/-fvia-C
+-- can be safely used in an OPTIONS_GHC pragma.
+setObjTarget :: HscTarget -> DynP ()
+setObjTarget l = upd set
+ where
+ set dfs
+ | isObjectTarget (hscTarget dfs) = dfs { hscTarget = l }
+ | otherwise = dfs
setOptLevel :: Int -> DynFlags -> DynFlags
setOptLevel n dflags
| hscTarget dflags == HscInterpreted && n > 0
- = dflags
- -- not in IO any more, oh well:
- -- putStr "warning: -O conflicts with --interactive; -O ignored.\n"
+ = dflags
+ -- not in IO any more, oh well:
+ -- putStr "warning: -O conflicts with --interactive; -O ignored.\n"
| otherwise
- = updOptLevel n dflags
+ = updOptLevel n dflags
+-- -Odph is equivalent to
+--
+-- -O2 optimise as much as possible
+-- -fno-method-sharing sharing specialisation defeats fusion
+-- sometimes
+-- -fdicts-cheap always inline dictionaries
+-- -fmax-simplifier-iterations20 this is necessary sometimes
+-- -fsimplifier-phases=3 we use an additional simplifier phase
+-- for fusion
+-- -fno-spec-constr-threshold run SpecConstr even for big loops
+-- -fno-spec-constr-count SpecConstr as much as possible
+-- -finline-enough-args hack to prevent excessive inlining
+--
+setDPHOpt :: DynFlags -> DynFlags
+setDPHOpt dflags = setOptLevel 2 (dflags { maxSimplIterations = 20
+ , simplPhases = 3
+ , specConstrThreshold = Nothing
+ , specConstrCount = Nothing
+ })
+ `dopt_set` Opt_DictsCheap
+ `dopt_unset` Opt_MethodSharing
+
+data DPHBackend = DPHPar
+ | DPHSeq
+ | DPHThis
+ deriving(Eq, Ord, Enum, Show)
+
+setDPHBackend :: DPHBackend -> DynP ()
+setDPHBackend backend
+ = do
+ upd $ \dflags -> dflags { dphBackend = backend }
+ mapM_ exposePackage (dph_packages backend)
+ where
+ dph_packages DPHThis = []
+ dph_packages DPHPar = ["dph-prim-par", "dph-par"]
+ dph_packages DPHSeq = ["dph-prim-seq", "dph-seq"]
+
+dphPackage :: DynFlags -> PackageId
+dphPackage dflags = case dphBackend dflags of
+ DPHPar -> dphParPackageId
+ DPHSeq -> dphSeqPackageId
+ DPHThis -> thisPackage dflags
+
setMainIs :: String -> DynP ()
setMainIs arg
- | not (null main_fn) -- The arg looked like "Foo.baz"
+ | not (null main_fn) && isLower (head main_fn)
+ -- The arg looked like "Foo.Bar.baz"
= upd $ \d -> d{ mainFunIs = Just main_fn,
- mainModIs = mkModule main_mod }
+ mainModIs = mkModule mainPackageId (mkModuleName main_mod) }
- | isUpper (head main_mod) -- The arg looked like "Foo"
- = upd $ \d -> d{ mainModIs = mkModule main_mod }
-
- | otherwise -- The arg looked like "baz"
- = upd $ \d -> d{ mainFunIs = Just main_mod }
+ | isUpper (head arg) -- The arg looked like "Foo" or "Foo.Bar"
+ = upd $ \d -> d{ mainModIs = mkModule mainPackageId (mkModuleName arg) }
+
+ | otherwise -- The arg looked like "baz"
+ = upd $ \d -> d{ mainFunIs = Just arg }
where
(main_mod, main_fn) = splitLongestPrefix arg (== '.')
-----------------------------------------------------------------------------
-- Paths & Libraries
+addImportPath, addLibraryPath, addIncludePath, addFrameworkPath :: FilePath -> DynP ()
+
-- -i on its own deletes the import paths
addImportPath "" = upd (\s -> s{importPaths = []})
addImportPath p = upd (\s -> s{importPaths = importPaths s ++ splitPathList p})
-addLibraryPath p =
+addLibraryPath p =
upd (\s -> s{libraryPaths = libraryPaths s ++ splitPathList p})
-addIncludePath p =
+addIncludePath p =
upd (\s -> s{includePaths = includePaths s ++ splitPathList p})
-addFrameworkPath p =
+addFrameworkPath p =
upd (\s -> s{frameworkPaths = frameworkPaths s ++ splitPathList p})
+#ifndef mingw32_TARGET_OS
+split_marker :: Char
split_marker = ':' -- not configurable (ToDo)
+#endif
splitPathList :: String -> [String]
splitPathList s = filter notNull (splitUp s)
- -- empty paths are ignored: there might be a trailing
- -- ':' in the initial list, for example. Empty paths can
- -- cause confusion when they are translated into -I options
- -- for passing to gcc.
+ -- empty paths are ignored: there might be a trailing
+ -- ':' in the initial list, for example. Empty paths can
+ -- cause confusion when they are translated into -I options
+ -- for passing to gcc.
where
#ifndef mingw32_TARGET_OS
splitUp xs = split split_marker xs
-#else
+#else
-- Windows: 'hybrid' support for DOS-style paths in directory lists.
- --
+ --
-- That is, if "foo:bar:baz" is used, this interpreted as
-- consisting of three entries, 'foo', 'bar', 'baz'.
-- However, with "c:/foo:c:\\foo;x:/bar", this is interpreted
-- So, use either.
splitUp [] = []
splitUp (x:':':div:xs) | div `elem` dir_markers
- = ((x:':':div:p): splitUp rs)
- where
- (p,rs) = findNextPath xs
- -- we used to check for existence of the path here, but that
- -- required the IO monad to be threaded through the command-line
- -- parser which is quite inconvenient. The
+ = ((x:':':div:p): splitUp rs)
+ where
+ (p,rs) = findNextPath xs
+ -- we used to check for existence of the path here, but that
+ -- required the IO monad to be threaded through the command-line
+ -- parser which is quite inconvenient. The
splitUp xs = cons p (splitUp rs)
- where
- (p,rs) = findNextPath xs
-
- cons "" xs = xs
- cons x xs = x:xs
+ where
+ (p,rs) = findNextPath xs
+
+ cons "" xs = xs
+ cons x xs = x:xs
-- will be called either when we've consumed nought or the
-- "<Drive>:/" part of a DOS path, so splitting is just a Q of
-- finding the next split marker.
- findNextPath xs =
+ findNextPath xs =
case break (`elem` split_markers) xs of
- (p, d:ds) -> (p, ds)
- (p, xs) -> (p, xs)
+ (p, _:ds) -> (p, ds)
+ (p, xs) -> (p, xs)
split_markers :: [Char]
split_markers = [':', ';']
-- tmpDir, where we store temporary files.
setTmpDir :: FilePath -> DynFlags -> DynFlags
-setTmpDir dir dflags = dflags{ tmpDir = canonicalise dir }
- where
-#if !defined(mingw32_HOST_OS)
- canonicalise p = normalisePath p
-#else
- -- Canonicalisation of temp path under win32 is a bit more
- -- involved: (a) strip trailing slash,
- -- (b) normalise slashes
- -- (c) just in case, if there is a prefix /cygdrive/x/, change to x:
- --
- canonicalise path = normalisePath (xltCygdrive (removeTrailingSlash path))
-
- -- if we're operating under cygwin, and TMP/TEMP is of
- -- the form "/cygdrive/drive/path", translate this to
- -- "drive:/path" (as GHC isn't a cygwin app and doesn't
- -- understand /cygdrive paths.)
- xltCygdrive path
- | "/cygdrive/" `isPrefixOf` path =
- case drop (length "/cygdrive/") path of
- drive:xs@('/':_) -> drive:':':xs
- _ -> path
- | otherwise = path
-
- -- strip the trailing backslash (awful, but we only do this once).
- removeTrailingSlash path =
- case last path of
- '/' -> init path
- '\\' -> init path
- _ -> path
-#endif
+setTmpDir dir dflags = dflags{ tmpDir = normalise dir }
+ -- we used to fix /cygdrive/c/.. on Windows, but this doesn't
+ -- seem necessary now --SDM 7/2/2008
+
+-----------------------------------------------------------------------------
+-- Hpc stuff
+
+setOptHpcDir :: String -> DynP ()
+setOptHpcDir arg = upd $ \ d -> d{hpcDir = arg}
-----------------------------------------------------------------------------
-- Via-C compilation stuff
+-- There are some options that we need to pass to gcc when compiling
+-- Haskell code via C, but are only supported by recent versions of
+-- gcc. The configure script decides which of these options we need,
+-- and puts them in the file "extra-gcc-opts" in $topdir, which is
+-- read before each via-C compilation. The advantage of having these
+-- in a separate file is that the file can be created at install-time
+-- depending on the available gcc version, and even re-generated later
+-- if gcc is upgraded.
+--
+-- The options below are not dependent on the version of gcc, only the
+-- platform.
+
machdepCCOpts :: DynFlags -> ([String], -- flags for all C compilations
- [String]) -- for registerised HC compilations
-machdepCCOpts dflags
+ [String]) -- for registerised HC compilations
+machdepCCOpts _dflags
#if alpha_TARGET_ARCH
- = ( ["-w", "-mieee"
+ = ( ["-w", "-mieee"
#ifdef HAVE_THREADED_RTS_SUPPORT
- , "-D_REENTRANT"
+ , "-D_REENTRANT"
#endif
- ], [] )
- -- For now, to suppress the gcc warning "call-clobbered
- -- register used for global register variable", we simply
- -- disable all warnings altogether using the -w flag. Oh well.
+ ], [] )
+ -- For now, to suppress the gcc warning "call-clobbered
+ -- register used for global register variable", we simply
+ -- disable all warnings altogether using the -w flag. Oh well.
#elif hppa_TARGET_ARCH
-- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
-- (very nice, but too bad the HP /usr/include files don't agree.)
- = ( ["-D_HPUX_SOURCE"], [] )
+ = ( ["-D_HPUX_SOURCE"], [] )
#elif m68k_TARGET_ARCH
-- -fno-defer-pop : for the .hc files, we want all the pushing/
-- rather than let GCC pick random things to do with it.
-- (If we want to steal a6, then we would try to do things
-- as on iX86, where we *do* steal the frame pointer [%ebp].)
- = ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] )
+ = ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] )
#elif i386_TARGET_ARCH
-- -fno-defer-pop : basically the same game as for m68k
--
-- -fomit-frame-pointer : *must* in .hc files; because we're stealing
-- the fp (%ebp) for our register maps.
- = let n_regs = stolen_x86_regs dflags
- sta = opt_Static
- in
- ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else ""
--- , if suffixMatch "mingw32" cTARGETPLATFORM then "-mno-cygwin" else ""
- ],
- [ "-fno-defer-pop",
-#ifdef HAVE_GCC_MNO_OMIT_LFPTR
- -- Some gccs are configured with
- -- -momit-leaf-frame-pointer on by default, and it
- -- apparently takes precedence over
- -- -fomit-frame-pointer, so we disable it first here.
- "-mno-omit-leaf-frame-pointer",
+ = 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
- "-fomit-frame-pointer",
- -- we want -fno-builtin, because when gcc inlines
- -- built-in functions like memcpy() it tends to
- -- run out of registers, requiring -monly-n-regs
- "-fno-builtin",
- "-DSTOLEN_X86_REGS="++show n_regs ]
- )
+ [ "-fno-defer-pop",
+ "-fomit-frame-pointer",
+ -- we want -fno-builtin, because when gcc inlines
+ -- built-in functions like memcpy() it tends to
+ -- run out of registers, requiring -monly-n-regs
+ "-fno-builtin",
+ "-DSTOLEN_X86_REGS="++show n_regs ]
+ )
#elif ia64_TARGET_ARCH
- = ( [], ["-fomit-frame-pointer", "-G0"] )
+ = ( [], ["-fomit-frame-pointer", "-G0"] )
#elif x86_64_TARGET_ARCH
- = ( [], ["-fomit-frame-pointer",
- "-fno-asynchronous-unwind-tables",
- -- the unwind tables are unnecessary for HC code,
- -- and get in the way of -split-objs. Another option
- -- would be to throw them away in the mangler, but this
- -- is easier.
- "-fno-unit-at-a-time",
- -- unit-at-a-time doesn't do us any good, and screws
- -- up -split-objs by moving the split markers around.
- -- It's only turned on with -O2, but put it here just
- -- in case someone uses -optc-O2.
- "-fno-builtin"
- -- calling builtins like strlen() using the FFI can
- -- cause gcc to run out of regs, so use the external
- -- version.
- ] )
-
-#elif mips_TARGET_ARCH
- = ( ["-static"], [] )
+ = (
+#if darwin_TARGET_OS
+ ["-m64"],
+#else
+ [],
+#endif
+ ["-fomit-frame-pointer",
+ "-fno-asynchronous-unwind-tables",
+ -- the unwind tables are unnecessary for HC code,
+ -- and get in the way of -split-objs. Another option
+ -- would be to throw them away in the mangler, but this
+ -- is easier.
+ "-fno-builtin"
+ -- calling builtins like strlen() using the FFI can
+ -- cause gcc to run out of regs, so use the external
+ -- version.
+ ] )
#elif sparc_TARGET_ARCH
- = ( [], ["-w"] )
- -- For now, to suppress the gcc warning "call-clobbered
- -- register used for global register variable", we simply
- -- disable all warnings altogether using the -w flag. Oh well.
+ = ( [], ["-w"] )
+ -- For now, to suppress the gcc warning "call-clobbered
+ -- register used for global register variable", we simply
+ -- disable all warnings altogether using the -w flag. Oh well.
#elif powerpc_apple_darwin_TARGET
-- -no-cpp-precomp:
-- declarations.
= ( [], ["-no-cpp-precomp"] )
#else
- = ( [], [] )
+ = ( [], [] )
#endif
picCCOpts :: DynFlags -> [String]
-picCCOpts dflags
+picCCOpts _dflags
#if darwin_TARGET_OS
-- Apple prefers to do things the other way round.
-- PIC is on by default.
-- in dynamic libraries.
| opt_PIC
- = ["-fno-common"]
+ = ["-fno-common", "-U __PIC__","-D__PIC__"]
| otherwise
= ["-mdynamic-no-pic"]
#elif mingw32_TARGET_OS
-- no -fPIC for Windows
+ | opt_PIC
+ = ["-U __PIC__","-D__PIC__"]
+ | otherwise
= []
#else
- | opt_PIC
- = ["-fPIC"]
+ | opt_PIC || not opt_Static
+ = ["-fPIC", "-U __PIC__", "-D__PIC__"]
| otherwise
= []
#endif
-- Splitting
can_split :: Bool
-can_split =
-#if defined(i386_TARGET_ARCH) \
- || defined(x86_64_TARGET_ARCH) \
- || defined(alpha_TARGET_ARCH) \
- || defined(hppa_TARGET_ARCH) \
- || defined(m68k_TARGET_ARCH) \
- || defined(mips_TARGET_ARCH) \
- || defined(powerpc_TARGET_ARCH) \
- || defined(rs6000_TARGET_ARCH) \
- || defined(sparc_TARGET_ARCH)
- True
-#else
- False
-#endif
+can_split = cSplitObjs == "YES"
+
+-- -----------------------------------------------------------------------------
+-- Compiler Info
+
+data Printable = String String
+ | FromDynFlags (DynFlags -> String)
+
+compilerInfo :: [(String, Printable)]
+compilerInfo = [("Project name", String cProjectName),
+ ("Project version", String cProjectVersion),
+ ("Booter version", String cBooterVersion),
+ ("Stage", String cStage),
+ ("Have interpreter", String cGhcWithInterpreter),
+ ("Object splitting", String cSplitObjs),
+ ("Have native code generator", String cGhcWithNativeCodeGen),
+ ("Support SMP", String cGhcWithSMP),
+ ("Unregisterised", String cGhcUnregisterised),
+ ("Tables next to code", String cGhcEnableTablesNextToCode),
+ ("Win32 DLLs", String cEnableWin32DLLs),
+ ("RTS ways", String cGhcRTSWays),
+ ("Leading underscore", String cLeadingUnderscore),
+ ("Debug on", String (show debugIsOn)),
+ ("LibDir", FromDynFlags topDir)
+ ]