-
-- |
-- Dynamic flags
--
GhcMode(..), isOneShot,
GhcLink(..), isNoLink,
PackageFlag(..),
- Option(..),
+ Option(..), showOpt,
DynLibLoader(..),
fFlags, xFlags,
dphPackage,
dopt_set, dopt_unset, -- DynFlags -> DynFlag -> DynFlags
getOpts, -- DynFlags -> (DynFlags -> [a]) -> [a]
getVerbFlag,
- getMainFun,
updOptLevel,
setTmpDir,
setPackageName,
+ doingTickyProfiling,
-- ** Parsing DynFlags
parseDynamicFlags,
getStgToDo,
-- * Compiler configuration suitable for display to the user
+ Printable(..),
compilerInfo
) where
#include "HsVersions.h"
+#ifndef OMIT_NATIVE_CODEGEN
+import Platform
+#endif
import Module
import PackageConfig
-import PrelNames ( mAIN, main_RDR_Unqual )
-import RdrName ( RdrName, mkRdrUnqual )
-import OccName ( mkVarOccFS )
-#ifdef i386_TARGET_ARCH
+import PrelNames ( mAIN )
+#if defined(i386_TARGET_ARCH) || (!defined(mingw32_TARGET_OS) && !defined(darwin_TARGET_OS))
import StaticFlags ( opt_Static )
#endif
import StaticFlags ( opt_PIC, WayName(..), v_Ways, v_Build_tag,
import Maybes ( orElse )
import SrcLoc
import FastString
+import FiniteMap
import Outputable
import {-# SOURCE #-} ErrUtils ( Severity(..), Message, mkLocMessage )
-import Data.IORef ( readIORef )
+import Data.IORef
import Control.Monad ( when )
import Data.Char
-import Data.List ( intersperse )
+import Data.List
import System.FilePath
import System.IO ( stderr, hPutChar )
| 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_WarnUnusedMatches
| Opt_WarnWarningsDeprecations
| Opt_WarnDeprecatedFlags
+ | Opt_WarnDodgyExports
| Opt_WarnDodgyImports
| Opt_WarnOrphans
| Opt_WarnTabs
| Opt_WarnUnrecognisedPragmas
| Opt_WarnDodgyForeignImports
+ | Opt_WarnLazyUnliftedBindings
+ | Opt_WarnUnusedDoBind
+ | Opt_WarnWrongDoBind
+
-- language opts
| Opt_OverlappingInstances
| Opt_IncoherentInstances
| Opt_MonomorphismRestriction
| Opt_MonoPatBinds
+ | Opt_MonoLocalBinds
| Opt_ExtendedDefaultRules -- Use GHC's extended rules for defaulting
| Opt_ForeignFunctionInterface
| Opt_UnliftedFFITypes
+ | Opt_GHCForeignImportPrim
| Opt_PArr -- Syntactic support for parallel arrays
| Opt_Arrows -- Arrow-notation syntax
| Opt_TemplateHaskell
| Opt_ViewPatterns
| Opt_GADTs
| Opt_RelaxedPolyRec
+
| Opt_StandaloneDeriving
| Opt_DeriveDataTypeable
+ | Opt_DeriveFunctor
+ | Opt_DeriveTraversable
+ | Opt_DeriveFoldable
+
| Opt_TypeSynonymInstances
| Opt_FlexibleContexts
| Opt_FlexibleInstances
| Opt_GeneralizedNewtypeDeriving
| Opt_RecursiveDo
| Opt_PostfixOperators
+ | Opt_TupleSections
| Opt_PatternGuards
| Opt_LiberalTypeSynonyms
| Opt_Rank2Types
| Opt_RegsGraph -- do graph coloring register allocation
| Opt_RegsIterative -- do iterative coalescing graph coloring register allocation
+ -- profiling opts
+ | Opt_AutoSccsOnAllToplevs
+ | Opt_AutoSccsOnExportedToplevs
+ | Opt_AutoSccsOnIndividualCafs
+
-- misc opts
| Opt_Cpp
| Opt_Pp
| Opt_PrintBindContents
| Opt_GenManifest
| Opt_EmbedManifest
+ | Opt_EmitExternalCore
+ | Opt_SharedImplib
-- temporary flags
| Opt_RunCPS
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],
pkgDatabase :: Maybe (UniqFM 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],
-- | 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.
+-- this step will be output. In particular, this includes warnings related
+-- to pattern matching. You can run the desugarer manually using
+-- 'GHC.desugarModule'.
--
--- * At the moment switching from 'HscNothing' to 'HscInterpreted' without
--- unloading first is not safe. To unload use
--- @GHC.setTargets [] >> GHC.load LoadAllTargets@.
+-- * 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
- | 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?
data GhcLink
= NoLink -- ^ Don't link at all
| LinkBinary -- ^ Link object code into a binary
- | LinkInMemory -- ^ Use the in-memory dynamic linker
+ | 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 NoLink = True
isNoLink _ = False
+-- Is it worth evaluating this Bool and caching it in the DynFlags value
+-- during initDynFlags?
+doingTickyProfiling :: DynFlags -> Bool
+doingTickyProfiling dflags = WayTicky `elem` wayNames dflags
+
data PackageFlag
= ExposePackage String
| HidePackage String
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
+ rtsBuildTag = rts_build_tag,
+ filesToClean = refFilesToClean,
+ dirsToClean = refDirsToClean
}
-- | The normal 'DynFlags'. Note that they is not suitable for use in this form
specConstrThreshold = Just 200,
specConstrCount = Just 3,
liberateCaseThreshold = Just 200,
+#ifndef OMIT_NATIVE_CODEGEN
+ targetPlatform = defaultTargetPlatform,
+#endif
stolen_x86_regs = 4,
cmdlineHcIncludes = [],
importPaths = ["."],
outputFile = Nothing,
outputHi = Nothing,
- dynLibLoader = Deployable,
+ dynLibLoader = SystemDependent,
dumpPrefix = Nothing,
dumpPrefixForce = Nothing,
includePaths = [],
depExcludeMods = [],
depSuffixes = [],
-- end of ghc -M values
+ filesToClean = panic "defaultDynFlags: No filesToClean",
+ dirsToClean = panic "defaultDynFlags: No dirsToClean",
haddockOptions = Nothing,
flags = [
Opt_AutoLinkPackages,
Opt_DoAsmMangling,
+ Opt_SharedImplib,
+
Opt_GenManifest,
Opt_EmbedManifest,
Opt_PrintBindContents
-- 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 maybePrefixMatch "-optdep" x of
+deOptDep x = case stripPrefix "-optdep" x of
Just rest -> rest
Nothing -> x
String -- the filepath/filename portion
| Option String
+showOpt :: Option -> String
+showOpt (FileOption pre f) = pre ++ f
+showOpt (Option s) = s
+
-----------------------------------------------------------------------------
-- Setting the optimisation level
Opt_WarnMissingFields,
Opt_WarnMissingMethods,
Opt_WarnDuplicateExports,
- Opt_WarnDodgyForeignImports
+ Opt_WarnLazyUnliftedBindings,
+ Opt_WarnDodgyForeignImports,
+ Opt_WarnWrongDoBind
]
minusWOpts :: [DynFlag]
Opt_WarnUnusedMatches,
Opt_WarnUnusedImports,
Opt_WarnIncompletePatterns,
+ Opt_WarnDodgyExports,
Opt_WarnDodgyImports
]
Opt_WarnNameShadowing,
Opt_WarnMissingSigs,
Opt_WarnHiShadows,
- Opt_WarnOrphans
+ Opt_WarnOrphans,
+ Opt_WarnUnusedDoBind
]
-- minuswRemovesOpts should be every warning option
pp_not False = text "not"
-- | Switches that specify the minimum amount of floating out
-gentleFloatOutSwitches :: FloatOutSwitches
-gentleFloatOutSwitches = FloatOutSwitches False False
+-- gentleFloatOutSwitches :: FloatOutSwitches
+-- gentleFloatOutSwitches = FloatOutSwitches False False
-- | Switches that do not specify floating out of lambdas, just of constants
constantsOnlyFloatOutSwitches :: FloatOutSwitches
-- so that overloaded functions have all their dictionary lambdas manifest
CoreDoSpecialising,
- runWhen full_laziness (CoreDoFloatOutwards gentleFloatOutSwitches),
+ runWhen full_laziness (CoreDoFloatOutwards constantsOnlyFloatOutSwitches),
+ -- Was: gentleFloatOutSwitches
+ -- I have no idea why, but not floating constants to top level is
+ -- very bad in some cases.
+ -- Notably: p_ident in spectral/rewrite
+ -- Changing from "gentle" to "constantsOnly" improved
+ -- rewrite's allocation by 19%, and made 0.0% difference
+ -- to any other nofib benchmark
CoreDoFloatInwards,
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)
(IntSuffix $ \n -> upd $ \dfs -> dfs{ ctxtStkDepth = n })
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"
fFlags :: [(String, DynFlag, Bool -> Deprecated)]
fFlags = [
( "warn-dodgy-foreign-imports", Opt_WarnDodgyForeignImports, const Supported ),
+ ( "warn-dodgy-exports", Opt_WarnDodgyExports, const Supported ),
( "warn-dodgy-imports", Opt_WarnDodgyImports, const Supported ),
( "warn-duplicate-exports", Opt_WarnDuplicateExports, const Supported ),
( "warn-hi-shadowing", Opt_WarnHiShadows, const Supported ),
( "warn-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 ),
( "print-explicit-foralls", Opt_PrintExplicitForalls, const Supported ),
( "strictness", Opt_Strictness, const Supported ),
( "static-argument-transformation", Opt_StaticArgumentTransformation, const Supported ),
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 ),
( "implicit-import-qualified", Opt_ImplicitImportQualified, const Supported )
]
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 ),
( "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 ),
( "MonomorphismRestriction", Opt_MonomorphismRestriction, const Supported ),
-- On by default (which is not strictly H98):
( "MonoPatBinds", Opt_MonoPatBinds, const Supported ),
+ ( "MonoLocalBinds", Opt_MonoLocalBinds, const Supported ),
( "RelaxedPolyRec", Opt_RelaxedPolyRec, const Supported ),
( "ExtendedDefaultRules", Opt_ExtendedDefaultRules, const Supported ),
( "ImplicitParams", Opt_ImplicitParams, const Supported ),
( "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 ),
= [ (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)
]
glasgowExtsFlags :: [DynFlag]
, Opt_TypeSynonymInstances
, Opt_StandaloneDeriving
, Opt_DeriveDataTypeable
+ , Opt_DeriveFunctor
+ , Opt_DeriveFoldable
+ , Opt_DeriveTraversable
, Opt_FlexibleContexts
, Opt_FlexibleInstances
, Opt_ConstrainedClassMethods
, Opt_PatternGuards
, Opt_LiberalTypeSynonyms
, Opt_RankNTypes
- , Opt_ImpredicativeTypes
, Opt_TypeOperators
, Opt_RecursiveDo
, Opt_ParallelListComp
-- 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
})
where
(main_mod, main_fn) = splitLongestPrefix arg (== '.')
--- | Get the unqualified name of the function to use as the \"main\" for the main module.
--- Either returns the default name or the one configured on the command line with -main-is
-getMainFun :: DynFlags -> RdrName
-getMainFun dflags = case (mainFunIs dflags) of
- Just fn -> mkRdrUnqual (mkVarOccFS (mkFastString fn))
- Nothing -> main_RDR_Unqual
-
-----------------------------------------------------------------------------
-- Paths & Libraries
= ( [], ["-fomit-frame-pointer", "-G0"] )
#elif x86_64_TARGET_ARCH
- = ( [], ["-fomit-frame-pointer",
+ = (
+#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
| otherwise
= []
#else
- | opt_PIC
+ | opt_PIC || not opt_Static
= ["-fPIC", "-U __PIC__", "-D__PIC__"]
| otherwise
= []
-- -----------------------------------------------------------------------------
-- Compiler Info
-compilerInfo :: [(String, String)]
-compilerInfo = [("Project name", cProjectName),
- ("Project version", cProjectVersion),
- ("Booter version", cBooterVersion),
- ("Stage", cStage),
- ("Interface file version", cHscIfaceFileVersion),
- ("Have interpreter", cGhcWithInterpreter),
- ("Object splitting", cSplitObjs),
- ("Have native code generator", cGhcWithNativeCodeGen),
- ("Support SMP", cGhcWithSMP),
- ("Unregisterised", cGhcUnregisterised),
- ("Tables next to code", cGhcEnableTablesNextToCode),
- ("Win32 DLLs", cEnableWin32DLLs),
- ("RTS ways", cGhcRTSWays),
- ("Leading underscore", cLeadingUnderscore),
- ("Debug on", show debugIsOn)
+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)
]
projects / ghc-hetmet.git / blobdiff