-----------------------------------------------------------------------------
--- $Id: DriverState.hs,v 1.87 2002/12/17 13:50:29 simonmar Exp $
+-- $Id: DriverState.hs,v 1.97 2003/09/23 14:33:00 simonmar Exp $
--
-- Settings for the driver
--
#include "../includes/config.h"
#include "HsVersions.h"
-import SysTools ( getTopDir )
import ParsePkgConf ( loadPackageConfig )
-import Packages ( PackageConfig(..), PackageConfigMap,
- PackageName, mkPackageName, packageNameString,
- packageDependents,
- mungePackagePaths, emptyPkgMap, extendPkgMap, lookupPkg,
- basePackage, rtsPackage, haskell98Package )
+import SysTools ( getTopDir )
+import Packages
import CmdLineOpts
import DriverPhases
import DriverUtil
+import UniqFM ( eltsUFM )
import Util
import Config
import Panic
import List
import Char
import Monad
-import Maybe ( fromJust, isJust )
-import Directory ( doesDirectoryExist )
+import Maybe ( fromJust, isJust )
+import Directory ( doesDirectoryExist )
-----------------------------------------------------------------------------
-- non-configured things
| DoMake -- ghc --make
| DoInteractive -- ghc --interactive
| DoLink -- [ the default ]
+ | DoEval String -- ghc -e
deriving (Eq,Show)
GLOBAL_VAR(v_GhcMode, DoLink, GhcMode)
GLOBAL_VAR(v_Static, True, Bool)
GLOBAL_VAR(v_NoLink, False, Bool)
GLOBAL_VAR(v_NoHsMain, False, Bool)
+GLOBAL_VAR(v_MainModIs, Nothing, Maybe String)
+GLOBAL_VAR(v_MainFunIs, Nothing, Maybe String)
GLOBAL_VAR(v_Recomp, True, Bool)
GLOBAL_VAR(v_Collect_ghc_timing, False, Bool)
GLOBAL_VAR(v_Do_asm_mangling, True, Bool)
osuf <- readIORef v_Object_suf
return (replaceFilenameSuffix f osuf)
------------------------------------------------------------------------------
--- Compiler optimisation options
-
-GLOBAL_VAR(v_OptLevel, 0, Int)
-
-setOptLevel :: Int -> IO ()
-setOptLevel n = do
- when (n >= 1) $ setLang HscC -- turn on -fvia-C with -O
- writeIORef v_OptLevel n
-
-GLOBAL_VAR(v_minus_o2_for_C, False, Bool)
-GLOBAL_VAR(v_MaxSimplifierIterations, 4, Int)
GLOBAL_VAR(v_StgStats, False, Bool)
-GLOBAL_VAR(v_UsageSPInf, False, Bool) -- Off by default
-GLOBAL_VAR(v_Strictness, True, Bool)
-GLOBAL_VAR(v_CSE, True, Bool)
-GLOBAL_VAR(v_RuleCheck, Nothing, Maybe String)
-
--- these are the static flags you get without -O.
-hsc_minusNoO_flags =
- [
- "-fignore-interface-pragmas",
- "-fomit-interface-pragmas",
- "-fdo-lambda-eta-expansion", -- 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.
- "-flet-no-escape"
- ]
-
--- these are the static flags you get when -O is on.
-hsc_minusO_flags =
- [
- "-fignore-asserts",
- "-ffoldr-build-on",
- "-fdo-eta-reduction",
- "-fdo-lambda-eta-expansion",
- "-fcase-merge",
- "-flet-to-case",
- "-flet-no-escape"
- ]
-
-hsc_minusO2_flags = hsc_minusO_flags -- for now
-
-getStaticOptimisationFlags 0 = hsc_minusNoO_flags
-getStaticOptimisationFlags 1 = hsc_minusO_flags
-getStaticOptimisationFlags n = hsc_minusO2_flags
-
-buildCoreToDo :: IO [CoreToDo]
-buildCoreToDo = do
- opt_level <- readIORef v_OptLevel
- max_iter <- readIORef v_MaxSimplifierIterations
- usageSP <- readIORef v_UsageSPInf
- strictness <- readIORef v_Strictness
- cse <- readIORef v_CSE
- rule_check <- readIORef v_RuleCheck
-
- if opt_level == 0 then return
- [
- CoreDoSimplify (SimplPhase 0) [
- MaxSimplifierIterations max_iter
- ]
- ]
-
- else {- opt_level >= 1 -} return [
-
- -- 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,
-
- CoreDoFloatOutwards (FloatOutSw False False),
- 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 },
-
- -- infer usage information here in case we need it later.
- -- (add more of these where you need them --KSW 1999-04)
- if usageSP then CoreDoUSPInf else 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
- ],
-
- CoreDoFloatOutwards (FloatOutSw False -- Not lambdas
- True), -- Float constants
- -- 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
- ]
- ]
buildStgToDo :: IO [ StgToDo ]
buildStgToDo = do
splitUp xs = return (split split_marker xs)
#endif
-GLOBAL_VAR(v_HCHeader, "", String)
-
------------------------------------------------------------------------------
--- Packages
-
-------------------------
--- The PackageConfigMap is read in from the configuration file
--- It doesn't change during a run
-GLOBAL_VAR(v_Package_details, emptyPkgMap, PackageConfigMap)
+-- ----------------------------------------------------------------------------
+-- Loading the package config file
readPackageConf :: String -> IO ()
readPackageConf conf_file = do
proto_pkg_configs <- loadPackageConfig conf_file
top_dir <- getTopDir
- old_pkg_map <- readIORef v_Package_details
-
let pkg_configs = mungePackagePaths top_dir proto_pkg_configs
- new_pkg_map = extendPkgMap old_pkg_map pkg_configs
-
- writeIORef v_Package_details new_pkg_map
+ extendPackageConfigMap pkg_configs
+
+mungePackagePaths :: String -> [PackageConfig] -> [PackageConfig]
+-- Replace the string "$libdir" at the beginning of a path
+-- with the current libdir (obtained from the -B option).
+mungePackagePaths top_dir ps = map munge_pkg ps
+ where
+ munge_pkg p = p{ import_dirs = munge_paths (import_dirs p),
+ include_dirs = munge_paths (include_dirs p),
+ library_dirs = munge_paths (library_dirs p),
+ framework_dirs = munge_paths (framework_dirs p) }
+
+ munge_paths = map munge_path
-getPackageConfigMap :: IO PackageConfigMap
-getPackageConfigMap = readIORef v_Package_details
+ munge_path p
+ | Just p' <- maybePrefixMatch "$libdir" p = top_dir ++ p'
+ | otherwise = p
-------------------------
--- The package list reflects what was given as command-line options,
--- plus their dependent packages.
--- It is maintained in dependency order;
--- earlier ones depend on later ones, but not vice versa
-GLOBAL_VAR(v_Packages, initPackageList, [PackageName])
+-- -----------------------------------------------------------------------------
+-- The list of packages requested on the command line
-getPackages :: IO [PackageName]
-getPackages = readIORef v_Packages
+-- The package list reflects what packages were given as command-line options,
+-- plus their dependent packages. It is maintained in dependency order;
+-- earlier packages may depend on later ones, but not vice versa
+GLOBAL_VAR(v_ExplicitPackages, initPackageList, [PackageName])
-initPackageList = [haskell98Package,
- basePackage,
- rtsPackage]
+initPackageList = [basePackage, rtsPackage]
+ -- basePackage is part of this list entirely because of
+ -- wired-in names in GHCi. See the notes on wired-in names in
+ -- Linker.linkExpr. By putting the base backage in initPackageList
+ -- we make sure that it'll always by linked.
+
+-- add a package requested from the command-line
addPackage :: String -> IO ()
-addPackage package
- = do { pkg_details <- getPackageConfigMap
- ; ps <- readIORef v_Packages
- ; ps' <- add_package pkg_details ps (mkPackageName package)
+addPackage package = do
+ pkg_details <- getPackageConfigMap
+ ps <- readIORef v_ExplicitPackages
+ ps' <- add_package pkg_details ps (mkPackageName package)
-- Throws an exception if it fails
- ; writeIORef v_Packages ps' }
+ writeIORef v_ExplicitPackages ps'
+-- internal helper
add_package :: PackageConfigMap -> [PackageName]
-> PackageName -> IO [PackageName]
add_package pkg_details ps p
| p `elem` ps -- Check if we've already added this package
= return ps
| Just details <- lookupPkg pkg_details p
- = do { -- Add the package's dependents first
- ps' <- foldM (add_package pkg_details) ps
- (packageDependents details)
- ; return (p : ps') }
-
+ -- Add the package's dependents also
+ = do ps' <- foldM (add_package pkg_details) ps (packageDependents details)
+ return (p : ps')
| otherwise
= throwDyn (CmdLineError ("unknown package name: " ++ packageNameString p))
-getPackageImportPath :: IO [String]
+
+-- -----------------------------------------------------------------------------
+-- Extracting information from the packages in scope
+
+-- Many of these functions take a list of packages: in those cases,
+-- the list is expected to contain the "dependent packages",
+-- i.e. those packages that were found to be depended on by the
+-- current module/program. These can be auto or non-auto packages, it
+-- doesn't really matter. The list is always combined with the list
+-- of explicit (command-line) packages to determine which packages to
+-- use.
+
+getPackageImportPath :: IO [String]
getPackageImportPath = do
- ps <- getPackageInfo
+ ps <- getExplicitAndAutoPackageConfigs
+ -- import dirs are always derived from the 'auto'
+ -- packages as well as the explicit ones
return (nub (filter notNull (concatMap import_dirs ps)))
-getPackageIncludePath :: IO [String]
-getPackageIncludePath = do
- ps <- getPackageInfo
+getPackageIncludePath :: [PackageName] -> IO [String]
+getPackageIncludePath pkgs = do
+ ps <- getExplicitPackagesAnd pkgs
return (nub (filter notNull (concatMap include_dirs ps)))
-- includes are in reverse dependency order (i.e. rts first)
-getPackageCIncludes :: IO [String]
-getPackageCIncludes = do
- ps <- getPackageInfo
- return (reverse (nub (filter notNull (concatMap c_includes ps))))
-
-getPackageLibraryPath :: IO [String]
-getPackageLibraryPath = do
- ps <- getPackageInfo
+getPackageCIncludes :: [PackageConfig] -> IO [String]
+getPackageCIncludes pkg_configs = do
+ return (reverse (nub (filter notNull (concatMap c_includes pkg_configs))))
+
+getPackageLibraryPath :: [PackageName] -> IO [String]
+getPackageLibraryPath pkgs = do
+ ps <- getExplicitPackagesAnd pkgs
return (nub (filter notNull (concatMap library_dirs ps)))
-getPackageLinkOpts :: IO [String]
-getPackageLinkOpts = do
- ps <- getPackageInfo
+getPackageLinkOpts :: [PackageName] -> IO [String]
+getPackageLinkOpts pkgs = do
+ ps <- getExplicitPackagesAnd pkgs
tag <- readIORef v_Build_tag
static <- readIORef v_Static
let
getPackageExtraGhcOpts :: IO [String]
getPackageExtraGhcOpts = do
- ps <- getPackageInfo
+ ps <- getExplicitAndAutoPackageConfigs
return (concatMap extra_ghc_opts ps)
-getPackageExtraCcOpts :: IO [String]
-getPackageExtraCcOpts = do
- ps <- getPackageInfo
+getPackageExtraCcOpts :: [PackageName] -> IO [String]
+getPackageExtraCcOpts pkgs = do
+ ps <- getExplicitPackagesAnd pkgs
return (concatMap extra_cc_opts ps)
#ifdef darwin_TARGET_OS
-getPackageFrameworkPath :: IO [String]
-getPackageFrameworkPath = do
- ps <- getPackageInfo
+getPackageFrameworkPath :: [PackageName] -> IO [String]
+getPackageFrameworkPath pkgs = do
+ ps <- getExplicitPackagesAnd pkgs
return (nub (filter notNull (concatMap framework_dirs ps)))
-getPackageFrameworks :: IO [String]
-getPackageFrameworks = do
- ps <- getPackageInfo
+getPackageFrameworks :: [PackageName] -> IO [String]
+getPackageFrameworks pkgs = do
+ ps <- getExplicitPackagesAnd pkgs
return (concatMap extra_frameworks ps)
#endif
-getPackageInfo :: IO [PackageConfig]
-getPackageInfo = do ps <- getPackages
- getPackageDetails ps
+-- -----------------------------------------------------------------------------
+-- Package Utils
-getPackageDetails :: [PackageName] -> IO [PackageConfig]
-getPackageDetails ps = do
- pkg_details <- getPackageConfigMap
- return [ pkg | Just pkg <- map (lookupPkg pkg_details) ps ]
+getExplicitPackagesAnd :: [PackageName] -> IO [PackageConfig]
+getExplicitPackagesAnd pkg_names = do
+ pkg_map <- getPackageConfigMap
+ expl <- readIORef v_ExplicitPackages
+ all_pkgs <- foldM (add_package pkg_map) expl pkg_names
+ getPackageDetails all_pkgs
+-- return all packages, including both the auto packages and the explicit ones
+getExplicitAndAutoPackageConfigs :: IO [PackageConfig]
+getExplicitAndAutoPackageConfigs = do
+ pkg_map <- getPackageConfigMap
+ let auto_packages = [ mkPackageName (name p) | p <- eltsUFM pkg_map, auto p ]
+ getExplicitPackagesAnd auto_packages
-----------------------------------------------------------------------------
-- Ways
(WaySMP, Way "s" "SMP"
[ "-fsmp"
, "-optc-pthread"
+#ifndef freebsd_TARGET_OS
, "-optl-pthread"
+#endif
, "-optc-DSMP"
, "-fvia-C" ]),
projects / ghc-hetmet.git / blobdiff