+{-# OPTIONS -fno-warn-missing-fields #-}
-----------------------------------------------------------------------------
--
-- Dynamic flags
getVerbFlag,
updOptLevel,
setTmpDir,
+ setPackageName,
-- parsing DynFlags
parseDynamicFlags,
allFlags,
-- misc stuff
- machdepCCOpts, picCCOpts,
+ machdepCCOpts, picCCOpts
) where
#include "HsVersions.h"
-import Module ( Module, mkModule )
+import Module ( Module, mkModuleName, mkModule )
+import PackageConfig
import PrelNames ( mAIN )
-import StaticFlags ( opt_Static, opt_PIC,
- WayName(..), v_Ways, v_Build_tag, v_RTS_Build_tag )
+#ifdef i386_TARGET_ARCH
+import StaticFlags ( opt_Static )
+#endif
+import StaticFlags ( opt_PIC, WayName(..), v_Ways, v_Build_tag,
+ v_RTS_Build_tag )
import {-# SOURCE #-} Packages (PackageState)
import DriverPhases ( Phase(..), phaseInputExt )
import Config
import CmdLineParser
+import Constants ( mAX_CONTEXT_REDUCTION_DEPTH )
import Panic ( panic, GhcException(..) )
-import Util ( notNull, splitLongestPrefix, split, normalisePath )
+import UniqFM ( UniqFM )
+import Util ( notNull, splitLongestPrefix, normalisePath )
+import Maybes ( fromJust, orElse )
import SrcLoc ( SrcSpan )
+import Outputable
+import {-# SOURCE #-} ErrUtils ( Severity(..), Message, mkLocMessage )
-import DATA_IOREF ( readIORef )
-import EXCEPTION ( throwDyn )
-import Monad ( when )
+import Data.IORef ( readIORef )
+import Control.Exception ( throwDyn )
+import Control.Monad ( when )
#ifdef mingw32_TARGET_OS
import Data.List ( isPrefixOf )
+#else
+import Util ( split )
#endif
-import Maybe ( fromJust )
-import Char ( isDigit, isUpper )
-import Outputable
+
+import Data.Char ( isDigit, isUpper )
import System.IO ( hPutStrLn, stderr )
-import {-# SOURCE #-} ErrUtils ( Severity(..), Message, mkLocMessage )
-- -----------------------------------------------------------------------------
-- DynFlags
| Opt_AllowUndecidableInstances
| Opt_AllowIncoherentInstances
| Opt_MonomorphismRestriction
+ | Opt_MonoPatBinds
+ | Opt_ExtendedDefaultRules -- Use GHC's extended rules for defaulting
| Opt_GlasgowExts
| Opt_FFI
- | Opt_PArr -- syntactic support for parallel arrays
- | Opt_Arrows -- Arrow-notation syntax
+ | Opt_PArr -- Syntactic support for parallel arrays
+ | Opt_Arrows -- Arrow-notation syntax
| Opt_TH
| Opt_ImplicitParams
| Opt_Generics
| Opt_ImplicitPrelude
| Opt_ScopedTypeVariables
| Opt_BangPatterns
+ | Opt_IndexedTypes
-- optimisation opts
| Opt_Strictness
| Opt_DoEtaReduction
| Opt_CaseMerge
| Opt_UnboxStrictFields
+ | Opt_DictsCheap
-- misc opts
| Opt_Cpp
| Opt_Pp
- | Opt_RecompChecking
+ | Opt_ForceRecomp
| Opt_DryRun
| Opt_DoAsmMangling
| Opt_ExcessPrecision
| Opt_SplitObjs
| Opt_StgStats
| Opt_HideAllPackages
+ | Opt_PrintBindResult
+ | Opt_Haddock
-- keeping stuff
| Opt_KeepHiDiffs
importPaths :: [FilePath],
mainModIs :: Module,
mainFunIs :: Maybe String,
+ ctxtStkDepth :: Int, -- Typechecker context stack depth
+
+ thisPackage :: PackageId,
-- ways
wayNames :: [WayName], -- way flags from the cmd line
cmdlineFrameworks :: [String], -- ditto
tmpDir :: String, -- no trailing '/'
+ ghcUsagePath :: FilePath, -- Filled in by SysTools
+ ghciUsagePath :: FilePath, -- ditto
+
-- options for particular phases
opt_L :: [String],
opt_P :: [String],
pgm_a :: (String,[Option]),
pgm_l :: (String,[Option]),
pgm_dll :: (String,[Option]),
+ pgm_T :: String,
+ pgm_sysman :: String,
- -- ** Package flags
+ -- 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
+ -- Package state
+ -- NB. do not modify this field, it is calculated by
+ -- Packages.initPackages and Packages.updatePackages.
+ pkgDatabase :: Maybe (UniqFM InstalledPackageInfo),
pkgState :: PackageState,
-- hsc dynamic flags
= HscC
| HscAsm
| HscJava
- | HscILX
| HscInterpreted
| HscNothing
deriving (Eq, Show)
= ExposePackage String
| HidePackage String
| IgnorePackage String
+ deriving Eq
defaultHscTarget
| cGhcWithNativeCodeGen == "YES" = HscAsm
importPaths = ["."],
mainModIs = mAIN,
mainFunIs = Nothing,
-
- wayNames = panic "ways",
- buildTag = panic "buildTag",
- rtsBuildTag = panic "rtsBuildTag",
+ ctxtStkDepth = mAX_CONTEXT_REDUCTION_DEPTH,
+
+ thisPackage = mainPackageId,
objectDir = Nothing,
hiDir = Nothing,
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",
+ pkgDatabase = Nothing,
+ pkgState = panic "no package state yet: call GHC.setSessionDynFlags",
flags = [
- Opt_RecompChecking,
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_Strictness,
-- and the default no-optimisation options:
Opt_IgnoreInterfacePragmas,
- Opt_OmitInterfacePragmas
+ Opt_OmitInterfacePragmas,
+ -- on by default:
+ Opt_PrintBindResult
] ++ standardWarnings,
log_action = \severity srcSpan style msg ->
-- 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
+ NoCaseOfCase, -- Don't do case-of-case transformations.
+ -- This makes full laziness work better
MaxSimplifierIterations max_iter
],
-- 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 },
+ 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,
+ (if opt_level >= 2 then
+ [ CoreLiberateCase,
+ CoreDoSimplify (SimplPhase 0) [
+ MaxSimplifierIterations max_iter
+ ], -- Run the simplifier after LiberateCase to vastly
+ -- reduce the possiblility of shadowing
+ -- Reason: see Note [Shadowing] in SpecConstr.lhs
+ CoreDoSpecConstr
+ ]
+ else
+ [])
+
+ ++
-- Final clean-up simplification:
- CoreDoSimplify (SimplPhase 0) [
+ [ CoreDoSimplify (SimplPhase 0) [
MaxSimplifierIterations max_iter
]
]
, ( "cpp" , NoArg (setDynFlag Opt_Cpp))
, ( "F" , NoArg (setDynFlag Opt_Pp))
, ( "#include" , HasArg (addCmdlineHCInclude) )
- , ( "v" , OptPrefix (setVerbosity) )
-
+ , ( "v" , OptIntSuffix setVerbosity )
------- Specific phases --------------------------------------------
, ( "pgmL" , HasArg (upd . setPgmL) )
, ( "pgmP" , HasArg (upd . setPgmP) )
------- Miscellaneous ----------------------------------------------
, ( "no-hs-main" , NoArg (setDynFlag Opt_NoHsMain))
, ( "main-is" , SepArg setMainIs )
+ , ( "haddock" , NoArg (setDynFlag Opt_Haddock) )
- ------- recompilation checker --------------------------------------
- , ( "recomp" , NoArg (setDynFlag Opt_RecompChecking) )
- , ( "no-recomp" , NoArg (unSetDynFlag Opt_RecompChecking) )
+ ------- recompilation checker (DEPRECATED, use -fforce-recomp) -----
+ , ( "recomp" , NoArg (unSetDynFlag Opt_ForceRecomp) )
+ , ( "no-recomp" , NoArg (setDynFlag Opt_ForceRecomp) )
------- Packages ----------------------------------------------------
, ( "package-conf" , HasArg extraPkgConf_ )
, ( "no-user-package-conf", NoArg (unSetDynFlag Opt_ReadUserPackageConf) )
- , ( "package-name" , HasArg ignorePackage ) -- for compatibility
+ , ( "package-name" , HasArg (upd . setPackageName) )
, ( "package" , HasArg exposePackage )
, ( "hide-package" , HasArg hidePackage )
, ( "hide-all-packages", NoArg (setDynFlag Opt_HideAllPackages) )
, ( "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") )
+ , ( "dshow-passes", NoArg (do setDynFlag Opt_ForceRecomp
+ setVerbosity (Just 2)) )
, ( "dfaststring-stats", NoArg (setDynFlag Opt_D_faststring_stats))
------ Machine dependant (-m<blah>) stuff ---------------------------
, ( "fasm", AnySuffix (\_ -> setTarget HscAsm) )
, ( "fvia-c", NoArg (setTarget HscC) )
, ( "fvia-C", NoArg (setTarget HscC) )
- , ( "filx", NoArg (setTarget HscILX) )
, ( "fglasgow-exts", NoArg (mapM_ setDynFlag glasgowExtsFlags) )
, ( "fno-glasgow-exts", NoArg (mapM_ unSetDynFlag glasgowExtsFlags) )
+ , ( "fcontext-stack" , OptIntSuffix $ \mb_n -> upd $ \dfs ->
+ dfs{ ctxtStkDepth = mb_n `orElse` 3 })
+
-- 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)) )
( "implicit-prelude", Opt_ImplicitPrelude ),
( "scoped-type-variables", Opt_ScopedTypeVariables ),
( "bang-patterns", Opt_BangPatterns ),
+ ( "indexed-types", Opt_IndexedTypes ),
( "monomorphism-restriction", Opt_MonomorphismRestriction ),
+ ( "mono-pat-binds", Opt_MonoPatBinds ),
+ ( "extended-default-rules", Opt_ExtendedDefaultRules ),
( "implicit-params", Opt_ImplicitParams ),
( "allow-overlapping-instances", Opt_AllowOverlappingInstances ),
( "allow-undecidable-instances", Opt_AllowUndecidableInstances ),
( "do-eta-reduction", Opt_DoEtaReduction ),
( "case-merge", Opt_CaseMerge ),
( "unbox-strict-fields", Opt_UnboxStrictFields ),
+ ( "dicts-cheap", Opt_DictsCheap ),
( "excess-precision", Opt_ExcessPrecision ),
- ( "asm-mangling", Opt_DoAsmMangling )
+ ( "asm-mangling", Opt_DoAsmMangling ),
+ ( "print-bind-result", Opt_PrintBindResult ),
+ ( "force-recomp", Opt_ForceRecomp )
]
+
glasgowExtsFlags = [
Opt_GlasgowExts,
Opt_FFI,
Opt_ImplicitParams,
Opt_ScopedTypeVariables,
- Opt_BangPatterns ]
+ Opt_IndexedTypes ]
isFFlag f = f `elem` (map fst fFlags)
getFFlag f = fromJust (lookup f fFlags)
setDumpFlag :: DynFlag -> OptKind DynP
setDumpFlag dump_flag
- = NoArg (unSetDynFlag Opt_RecompChecking >> setDynFlag dump_flag)
+ = NoArg (setDynFlag Opt_ForceRecomp >> setDynFlag dump_flag)
-- Whenver we -ddump, switch off the recompilation checker,
-- else you don't see the dump!
-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 a = upd (\s -> s{cmdlineHcIncludes = a : cmdlineHcIncludes s})
ignorePackage p =
upd (\s -> s{ packageFlags = IgnorePackage p : packageFlags s })
--- we can only switch between HscC, HscAsmm, and HscILX with dynamic flags
+setPackageName p
+ | Nothing <- unpackPackageId pid
+ = throwDyn (CmdLineError ("cannot parse \'" ++ p ++ "\' as a package identifier"))
+ | otherwise
+ = \s -> s{ thisPackage = pid }
+ where
+ pid = stringToPackageId p
+
+-- we can only switch between HscC, and HscAsmm 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)
setOptLevel :: Int -> DynFlags -> DynFlags
setMainIs arg
| not (null main_fn) -- The arg looked like "Foo.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 }
+ = upd $ \d -> d{ mainModIs = mkModule mainPackageId (mkModuleName main_mod) }
| otherwise -- The arg looked like "baz"
= upd $ \d -> d{ mainFunIs = Just main_mod }
-- -fomit-frame-pointer, so we disable it first here.
"-mno-omit-leaf-frame-pointer",
#endif
+#ifdef HAVE_GCC_HAS_NO_UNIT_AT_A_TIME
+ "-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.
+#endif
"-fomit-frame-pointer",
-- we want -fno-builtin, because when gcc inlines
-- built-in functions like memcpy() it tends to
-- and get in the way of -split-objs. Another option
-- would be to throw them away in the mangler, but this
-- is easier.
+#ifdef HAVE_GCC_HAS_NO_UNIT_AT_A_TIME
"-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.
+#endif
"-fno-builtin"
-- calling builtins like strlen() using the FFI can
-- cause gcc to run out of regs, so use the external