hackport-0.5.5: cabal/Cabal/Distribution/Simple/LHC.hs
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE RankNTypes #-}
-----------------------------------------------------------------------------
-- |
-- Module : Distribution.Simple.LHC
-- Copyright : Isaac Jones 2003-2007
-- License : BSD3
--
-- Maintainer : cabal-devel@haskell.org
-- Portability : portable
--
-- This is a fairly large module. It contains most of the GHC-specific code for
-- configuring, building and installing packages. It also exports a function
-- for finding out what packages are already installed. Configuring involves
-- finding the @ghc@ and @ghc-pkg@ programs, finding what language extensions
-- this version of ghc supports and returning a 'Compiler' value.
--
-- 'getInstalledPackages' involves calling the @ghc-pkg@ program to find out
-- what packages are installed.
--
-- Building is somewhat complex as there is quite a bit of information to take
-- into account. We have to build libs and programs, possibly for profiling and
-- shared libs. We have to support building libraries that will be usable by
-- GHCi and also ghc's @-split-objs@ feature. We have to compile any C files
-- using ghc. Linking, especially for @split-objs@ is remarkably complex,
-- partly because there tend to be 1,000's of @.o@ files and this can often be
-- more than we can pass to the @ld@ or @ar@ programs in one go.
--
-- Installing for libs and exes involves finding the right files and copying
-- them to the right places. One of the more tricky things about this module is
-- remembering the layout of files in the build directory (which is not
-- explicitly documented) and thus what search dirs are used for various kinds
-- of files.
module Distribution.Simple.LHC (
configure, getInstalledPackages,
buildLib, buildExe,
installLib, installExe,
registerPackage,
hcPkgInfo,
ghcOptions,
ghcVerbosityOptions
) where
import Prelude ()
import Distribution.Compat.Prelude
import Distribution.Types.UnqualComponentName
import Distribution.PackageDescription as PD hiding (Flag)
import Distribution.InstalledPackageInfo
import qualified Distribution.InstalledPackageInfo as InstalledPackageInfo
import Distribution.Simple.PackageIndex
import qualified Distribution.Simple.PackageIndex as PackageIndex
import Distribution.Simple.LocalBuildInfo
import Distribution.Simple.BuildPaths
import Distribution.Simple.Utils
import Distribution.Package
import qualified Distribution.ModuleName as ModuleName
import Distribution.Simple.Program
import qualified Distribution.Simple.Program.HcPkg as HcPkg
import Distribution.Simple.Compiler
import Distribution.Version
import Distribution.Verbosity
import Distribution.Text
import Distribution.Compat.Exception
import Distribution.System
import Language.Haskell.Extension
import qualified Data.Map as Map ( empty )
import System.Directory ( removeFile, renameFile,
getDirectoryContents, doesFileExist,
getTemporaryDirectory )
import System.FilePath ( (</>), (<.>), takeExtension,
takeDirectory, replaceExtension )
import System.IO (hClose, hPutStrLn)
-- -----------------------------------------------------------------------------
-- Configuring
configure :: Verbosity -> Maybe FilePath -> Maybe FilePath
-> ProgramDb -> IO (Compiler, Maybe Platform, ProgramDb)
configure verbosity hcPath hcPkgPath progdb = do
(lhcProg, lhcVersion, progdb') <-
requireProgramVersion verbosity lhcProgram
(orLaterVersion (mkVersion [0,7]))
(userMaybeSpecifyPath "lhc" hcPath progdb)
(lhcPkgProg, lhcPkgVersion, progdb'') <-
requireProgramVersion verbosity lhcPkgProgram
(orLaterVersion (mkVersion [0,7]))
(userMaybeSpecifyPath "lhc-pkg" hcPkgPath progdb')
when (lhcVersion /= lhcPkgVersion) $ die' verbosity $
"Version mismatch between lhc and lhc-pkg: "
++ programPath lhcProg ++ " is version " ++ display lhcVersion ++ " "
++ programPath lhcPkgProg ++ " is version " ++ display lhcPkgVersion
languages <- getLanguages verbosity lhcProg
extensions <- getExtensions verbosity lhcProg
let comp = Compiler {
compilerId = CompilerId LHC lhcVersion,
compilerAbiTag = NoAbiTag,
compilerCompat = [],
compilerLanguages = languages,
compilerExtensions = extensions,
compilerProperties = Map.empty
}
progdb''' = configureToolchain lhcProg progdb'' -- configure gcc and ld
compPlatform = Nothing
return (comp, compPlatform, progdb''')
-- | Adjust the way we find and configure gcc and ld
--
configureToolchain :: ConfiguredProgram -> ProgramDb
-> ProgramDb
configureToolchain lhcProg =
addKnownProgram gccProgram {
programFindLocation = findProg gccProgram (baseDir </> "gcc.exe"),
programPostConf = configureGcc
}
. addKnownProgram ldProgram {
programFindLocation = findProg ldProgram (gccLibDir </> "ld.exe"),
programPostConf = configureLd
}
where
compilerDir = takeDirectory (programPath lhcProg)
baseDir = takeDirectory compilerDir
gccLibDir = baseDir </> "gcc-lib"
includeDir = baseDir </> "include" </> "mingw"
isWindows = case buildOS of Windows -> True; _ -> False
-- on Windows finding and configuring ghc's gcc and ld is a bit special
findProg :: Program -> FilePath
-> Verbosity -> ProgramSearchPath
-> IO (Maybe (FilePath, [FilePath]))
findProg prog location | isWindows = \verbosity searchpath -> do
exists <- doesFileExist location
if exists then return (Just (location, []))
else do warn verbosity ("Couldn't find " ++ programName prog ++ " where I expected it. Trying the search path.")
programFindLocation prog verbosity searchpath
| otherwise = programFindLocation prog
configureGcc :: Verbosity -> ConfiguredProgram -> NoCallStackIO ConfiguredProgram
configureGcc
| isWindows = \_ gccProg -> case programLocation gccProg of
-- if it's found on system then it means we're using the result
-- of programFindLocation above rather than a user-supplied path
-- that means we should add this extra flag to tell ghc's gcc
-- where it lives and thus where gcc can find its various files:
FoundOnSystem {} -> return gccProg {
programDefaultArgs = ["-B" ++ gccLibDir,
"-I" ++ includeDir]
}
UserSpecified {} -> return gccProg
| otherwise = \_ gccProg -> return gccProg
-- we need to find out if ld supports the -x flag
configureLd :: Verbosity -> ConfiguredProgram -> IO ConfiguredProgram
configureLd verbosity ldProg = do
tempDir <- getTemporaryDirectory
ldx <- withTempFile tempDir ".c" $ \testcfile testchnd ->
withTempFile tempDir ".o" $ \testofile testohnd -> do
hPutStrLn testchnd "int foo() { return 0; }"
hClose testchnd; hClose testohnd
runProgram verbosity lhcProg ["-c", testcfile,
"-o", testofile]
withTempFile tempDir ".o" $ \testofile' testohnd' ->
do
hClose testohnd'
_ <- getProgramOutput verbosity ldProg
["-x", "-r", testofile, "-o", testofile']
return True
`catchIO` (\_ -> return False)
`catchExit` (\_ -> return False)
if ldx
then return ldProg { programDefaultArgs = ["-x"] }
else return ldProg
getLanguages :: Verbosity -> ConfiguredProgram -> NoCallStackIO [(Language, Flag)]
getLanguages _ _ = return [(Haskell98, "")]
--FIXME: does lhc support -XHaskell98 flag? from what version?
getExtensions :: Verbosity -> ConfiguredProgram -> IO [(Extension, Flag)]
getExtensions verbosity lhcProg = do
exts <- rawSystemStdout verbosity (programPath lhcProg)
["--supported-languages"]
-- GHC has the annoying habit of inverting some of the extensions
-- so we have to try parsing ("No" ++ ghcExtensionName) first
let readExtension str = do
ext <- simpleParse ("No" ++ str)
case ext of
UnknownExtension _ -> simpleParse str
_ -> return ext
return $ [ (ext, "-X" ++ display ext)
| Just ext <- map readExtension (lines exts) ]
getInstalledPackages :: Verbosity -> PackageDBStack -> ProgramDb
-> IO InstalledPackageIndex
getInstalledPackages verbosity packagedbs progdb = do
checkPackageDbStack verbosity packagedbs
pkgss <- getInstalledPackages' lhcPkg verbosity packagedbs progdb
let indexes = [ PackageIndex.fromList (map (substTopDir topDir) pkgs)
| (_, pkgs) <- pkgss ]
return $! (mconcat indexes)
where
-- On Windows, various fields have $topdir/foo rather than full
-- paths. We need to substitute the right value in so that when
-- we, for example, call gcc, we have proper paths to give it
Just ghcProg = lookupProgram lhcProgram progdb
Just lhcPkg = lookupProgram lhcPkgProgram progdb
compilerDir = takeDirectory (programPath ghcProg)
topDir = takeDirectory compilerDir
checkPackageDbStack :: Verbosity -> PackageDBStack -> IO ()
checkPackageDbStack _ (GlobalPackageDB:rest)
| GlobalPackageDB `notElem` rest = return ()
checkPackageDbStack verbosity _ =
die' verbosity $
"GHC.getInstalledPackages: the global package db must be "
++ "specified first and cannot be specified multiple times"
-- | Get the packages from specific PackageDBs, not cumulative.
--
getInstalledPackages' :: ConfiguredProgram -> Verbosity
-> [PackageDB] -> ProgramDb
-> IO [(PackageDB, [InstalledPackageInfo])]
getInstalledPackages' lhcPkg verbosity packagedbs progdb
=
sequenceA
[ do str <- getDbProgramOutput verbosity lhcPkgProgram progdb
["dump", packageDbGhcPkgFlag packagedb]
`catchExit` \_ -> die' verbosity $ "ghc-pkg dump failed"
case parsePackages str of
Left ok -> return (packagedb, ok)
_ -> die' verbosity "failed to parse output of 'ghc-pkg dump'"
| packagedb <- packagedbs ]
where
parsePackages str =
let parsed = map parseInstalledPackageInfo (splitPkgs str)
in case [ msg | ParseFailed msg <- parsed ] of
[] -> Left [ pkg | ParseOk _ pkg <- parsed ]
msgs -> Right msgs
splitPkgs :: String -> [String]
splitPkgs = map unlines . splitWith ("---" ==) . lines
where
splitWith :: (a -> Bool) -> [a] -> [[a]]
splitWith p xs = ys : case zs of
[] -> []
_:ws -> splitWith p ws
where (ys,zs) = break p xs
packageDbGhcPkgFlag GlobalPackageDB = "--global"
packageDbGhcPkgFlag UserPackageDB = "--user"
packageDbGhcPkgFlag (SpecificPackageDB path) = "--" ++ packageDbFlag ++ "=" ++ path
packageDbFlag
| programVersion lhcPkg < Just (mkVersion [7,5])
= "package-conf"
| otherwise
= "package-db"
substTopDir :: FilePath -> InstalledPackageInfo -> InstalledPackageInfo
substTopDir topDir ipo
= ipo {
InstalledPackageInfo.importDirs
= map f (InstalledPackageInfo.importDirs ipo),
InstalledPackageInfo.libraryDirs
= map f (InstalledPackageInfo.libraryDirs ipo),
InstalledPackageInfo.includeDirs
= map f (InstalledPackageInfo.includeDirs ipo),
InstalledPackageInfo.frameworkDirs
= map f (InstalledPackageInfo.frameworkDirs ipo),
InstalledPackageInfo.haddockInterfaces
= map f (InstalledPackageInfo.haddockInterfaces ipo),
InstalledPackageInfo.haddockHTMLs
= map f (InstalledPackageInfo.haddockHTMLs ipo)
}
where f ('$':'t':'o':'p':'d':'i':'r':rest) = topDir ++ rest
f x = x
-- -----------------------------------------------------------------------------
-- Building
-- | Build a library with LHC.
--
buildLib :: Verbosity -> PackageDescription -> LocalBuildInfo
-> Library -> ComponentLocalBuildInfo -> IO ()
buildLib verbosity pkg_descr lbi lib clbi = do
let lib_name = componentUnitId clbi
pref = componentBuildDir lbi clbi
pkgid = packageId pkg_descr
runGhcProg = runDbProgram verbosity lhcProgram (withPrograms lbi)
ifVanillaLib forceVanilla = when (forceVanilla || withVanillaLib lbi)
ifProfLib = when (withProfLib lbi)
ifSharedLib = when (withSharedLib lbi)
ifGHCiLib = when (withGHCiLib lbi && withVanillaLib lbi)
libBi <- hackThreadedFlag verbosity
(compiler lbi) (withProfLib lbi) (libBuildInfo lib)
let libTargetDir = pref
forceVanillaLib = usesTemplateHaskellOrQQ libBi
-- TH always needs vanilla libs, even when building for profiling
createDirectoryIfMissingVerbose verbosity True libTargetDir
-- TODO: do we need to put hs-boot files into place for mutually recursive modules?
let ghcArgs =
["-package-name", display pkgid ]
++ constructGHCCmdLine lbi libBi clbi libTargetDir verbosity
++ map display (allLibModules lib clbi)
lhcWrap x = ["--build-library", "--ghc-opts=" ++ unwords x]
ghcArgsProf = ghcArgs
++ ["-prof",
"-hisuf", "p_hi",
"-osuf", "p_o"
]
++ hcProfOptions GHC libBi
ghcArgsShared = ghcArgs
++ ["-dynamic",
"-hisuf", "dyn_hi",
"-osuf", "dyn_o", "-fPIC"
]
++ hcSharedOptions GHC libBi
unless (null (allLibModules lib clbi)) $
do ifVanillaLib forceVanillaLib (runGhcProg $ lhcWrap ghcArgs)
ifProfLib (runGhcProg $ lhcWrap ghcArgsProf)
ifSharedLib (runGhcProg $ lhcWrap ghcArgsShared)
-- build any C sources
unless (null (cSources libBi)) $ do
info verbosity "Building C Sources..."
sequence_ [do let (odir,args) = constructCcCmdLine lbi libBi clbi pref
filename verbosity
createDirectoryIfMissingVerbose verbosity True odir
runGhcProg args
ifSharedLib (runGhcProg (args ++ ["-fPIC", "-osuf dyn_o"]))
| filename <- cSources libBi]
-- link:
info verbosity "Linking..."
let cObjs = map (`replaceExtension` objExtension) (cSources libBi)
cSharedObjs = map (`replaceExtension` ("dyn_" ++ objExtension)) (cSources libBi)
cid = compilerId (compiler lbi)
vanillaLibFilePath = libTargetDir </> mkLibName lib_name
profileLibFilePath = libTargetDir </> mkProfLibName lib_name
sharedLibFilePath = libTargetDir </> mkSharedLibName cid lib_name
ghciLibFilePath = libTargetDir </> mkGHCiLibName lib_name
stubObjs <- fmap catMaybes $ sequenceA
[ findFileWithExtension [objExtension] [libTargetDir]
(ModuleName.toFilePath x ++"_stub")
| x <- allLibModules lib clbi ]
stubProfObjs <- fmap catMaybes $ sequenceA
[ findFileWithExtension ["p_" ++ objExtension] [libTargetDir]
(ModuleName.toFilePath x ++"_stub")
| x <- allLibModules lib clbi ]
stubSharedObjs <- fmap catMaybes $ sequenceA
[ findFileWithExtension ["dyn_" ++ objExtension] [libTargetDir]
(ModuleName.toFilePath x ++"_stub")
| x <- allLibModules lib clbi ]
hObjs <- getHaskellObjects lib lbi clbi
pref objExtension True
hProfObjs <-
if (withProfLib lbi)
then getHaskellObjects lib lbi clbi
pref ("p_" ++ objExtension) True
else return []
hSharedObjs <-
if (withSharedLib lbi)
then getHaskellObjects lib lbi clbi
pref ("dyn_" ++ objExtension) False
else return []
unless (null hObjs && null cObjs && null stubObjs) $ do
-- first remove library files if they exists
sequence_
[ removeFile libFilePath `catchIO` \_ -> return ()
| libFilePath <- [vanillaLibFilePath, profileLibFilePath
,sharedLibFilePath, ghciLibFilePath] ]
let arVerbosity | verbosity >= deafening = "v"
| verbosity >= normal = ""
| otherwise = "c"
arArgs = ["q"++ arVerbosity]
++ [vanillaLibFilePath]
arObjArgs =
hObjs
++ map (pref </>) cObjs
++ stubObjs
arProfArgs = ["q"++ arVerbosity]
++ [profileLibFilePath]
arProfObjArgs =
hProfObjs
++ map (pref </>) cObjs
++ stubProfObjs
ldArgs = ["-r"]
++ ["-o", ghciLibFilePath <.> "tmp"]
ldObjArgs =
hObjs
++ map (pref </>) cObjs
++ stubObjs
ghcSharedObjArgs =
hSharedObjs
++ map (pref </>) cSharedObjs
++ stubSharedObjs
-- After the relocation lib is created we invoke ghc -shared
-- with the dependencies spelled out as -package arguments
-- and ghc invokes the linker with the proper library paths
ghcSharedLinkArgs =
[ "-no-auto-link-packages",
"-shared",
"-dynamic",
"-o", sharedLibFilePath ]
++ ghcSharedObjArgs
++ ["-package-name", display pkgid ]
++ ghcPackageFlags lbi clbi
++ ["-l"++extraLib | extraLib <- extraLibs libBi]
++ ["-L"++extraLibDir | extraLibDir <- extraLibDirs libBi]
runLd ldLibName args = do
exists <- doesFileExist ldLibName
-- This method is called iteratively by xargs. The
-- output goes to <ldLibName>.tmp, and any existing file
-- named <ldLibName> is included when linking. The
-- output is renamed to <lib_name>.
runDbProgram verbosity ldProgram (withPrograms lbi)
(args ++ if exists then [ldLibName] else [])
renameFile (ldLibName <.> "tmp") ldLibName
runAr = runDbProgram verbosity arProgram (withPrograms lbi)
--TODO: discover this at configure time or runtime on Unix
-- The value is 32k on Windows and POSIX specifies a minimum of 4k
-- but all sensible Unixes use more than 4k.
-- we could use getSysVar ArgumentLimit but that's in the Unix lib
maxCommandLineSize = 30 * 1024
ifVanillaLib False $ xargs maxCommandLineSize
runAr arArgs arObjArgs
ifProfLib $ xargs maxCommandLineSize
runAr arProfArgs arProfObjArgs
ifGHCiLib $ xargs maxCommandLineSize
(runLd ghciLibFilePath) ldArgs ldObjArgs
ifSharedLib $ runGhcProg ghcSharedLinkArgs
-- | Build an executable with LHC.
--
buildExe :: Verbosity -> PackageDescription -> LocalBuildInfo
-> Executable -> ComponentLocalBuildInfo -> IO ()
buildExe verbosity _pkg_descr lbi
exe@Executable { exeName = exeName', modulePath = modPath } clbi = do
let exeName'' = unUnqualComponentName exeName'
let pref = buildDir lbi
runGhcProg = runDbProgram verbosity lhcProgram (withPrograms lbi)
exeBi <- hackThreadedFlag verbosity
(compiler lbi) (withProfExe lbi) (buildInfo exe)
-- exeNameReal, the name that GHC really uses (with .exe on Windows)
let exeNameReal = exeName'' <.>
(if null $ takeExtension exeName'' then exeExtension else "")
let targetDir = pref </> exeName''
let exeDir = targetDir </> (exeName'' ++ "-tmp")
createDirectoryIfMissingVerbose verbosity True targetDir
createDirectoryIfMissingVerbose verbosity True exeDir
-- TODO: do we need to put hs-boot files into place for mutually recursive modules?
-- FIX: what about exeName.hi-boot?
-- build executables
unless (null (cSources exeBi)) $ do
info verbosity "Building C Sources."
sequence_ [do let (odir,args) = constructCcCmdLine lbi exeBi clbi
exeDir filename verbosity
createDirectoryIfMissingVerbose verbosity True odir
runGhcProg args
| filename <- cSources exeBi]
srcMainFile <- findFile (exeDir : hsSourceDirs exeBi) modPath
let cObjs = map (`replaceExtension` objExtension) (cSources exeBi)
let lhcWrap x = ("--ghc-opts\"":x) ++ ["\""]
let binArgs linkExe profExe =
(if linkExe
then ["-o", targetDir </> exeNameReal]
else ["-c"])
++ constructGHCCmdLine lbi exeBi clbi exeDir verbosity
++ [exeDir </> x | x <- cObjs]
++ [srcMainFile]
++ ["-optl" ++ opt | opt <- PD.ldOptions exeBi]
++ ["-l"++lib | lib <- extraLibs exeBi]
++ ["-L"++extraLibDir | extraLibDir <- extraLibDirs exeBi]
++ concat [["-framework", f] | f <- PD.frameworks exeBi]
++ if profExe
then ["-prof",
"-hisuf", "p_hi",
"-osuf", "p_o"
] ++ hcProfOptions GHC exeBi
else []
-- For building exe's for profiling that use TH we actually
-- have to build twice, once without profiling and the again
-- with profiling. This is because the code that TH needs to
-- run at compile time needs to be the vanilla ABI so it can
-- be loaded up and run by the compiler.
when (withProfExe lbi && usesTemplateHaskellOrQQ exeBi)
(runGhcProg $ lhcWrap (binArgs False False))
runGhcProg (binArgs True (withProfExe lbi))
-- | Filter the "-threaded" flag when profiling as it does not
-- work with ghc-6.8 and older.
hackThreadedFlag :: Verbosity -> Compiler -> Bool -> BuildInfo -> IO BuildInfo
hackThreadedFlag verbosity comp prof bi
| not mustFilterThreaded = return bi
| otherwise = do
warn verbosity $ "The ghc flag '-threaded' is not compatible with "
++ "profiling in ghc-6.8 and older. It will be disabled."
return bi { options = filterHcOptions (/= "-threaded") (options bi) }
where
mustFilterThreaded = prof && compilerVersion comp < mkVersion [6, 10]
&& "-threaded" `elem` hcOptions GHC bi
filterHcOptions p hcoptss =
[ (hc, if hc == GHC then filter p opts else opts)
| (hc, opts) <- hcoptss ]
-- when using -split-objs, we need to search for object files in the
-- Module_split directory for each module.
getHaskellObjects :: Library -> LocalBuildInfo -> ComponentLocalBuildInfo
-> FilePath -> String -> Bool -> NoCallStackIO [FilePath]
getHaskellObjects lib lbi clbi pref wanted_obj_ext allow_split_objs
| splitObjs lbi && allow_split_objs = do
let dirs = [ pref </> (ModuleName.toFilePath x ++ "_split")
| x <- allLibModules lib clbi ]
objss <- traverse getDirectoryContents dirs
let objs = [ dir </> obj
| (objs',dir) <- zip objss dirs, obj <- objs',
let obj_ext = takeExtension obj,
'.':wanted_obj_ext == obj_ext ]
return objs
| otherwise =
return [ pref </> ModuleName.toFilePath x <.> wanted_obj_ext
| x <- allLibModules lib clbi ]
constructGHCCmdLine
:: LocalBuildInfo
-> BuildInfo
-> ComponentLocalBuildInfo
-> FilePath
-> Verbosity
-> [String]
constructGHCCmdLine lbi bi clbi odir verbosity =
["--make"]
++ ghcVerbosityOptions verbosity
-- Unsupported extensions have already been checked by configure
++ ghcOptions lbi bi clbi odir
ghcVerbosityOptions :: Verbosity -> [String]
ghcVerbosityOptions verbosity
| verbosity >= deafening = ["-v"]
| verbosity >= normal = []
| otherwise = ["-w", "-v0"]
ghcOptions :: LocalBuildInfo -> BuildInfo -> ComponentLocalBuildInfo
-> FilePath -> [String]
ghcOptions lbi bi clbi odir
= ["-hide-all-packages"]
++ ghcPackageDbOptions lbi
++ (if splitObjs lbi then ["-split-objs"] else [])
++ ["-i"]
++ ["-i" ++ odir]
++ ["-i" ++ l | l <- nub (hsSourceDirs bi)]
++ ["-i" ++ autogenComponentModulesDir lbi clbi]
++ ["-i" ++ autogenPackageModulesDir lbi]
++ ["-I" ++ autogenComponentModulesDir lbi clbi]
++ ["-I" ++ autogenPackageModulesDir lbi]
++ ["-I" ++ odir]
++ ["-I" ++ dir | dir <- PD.includeDirs bi]
++ ["-optP" ++ opt | opt <- cppOptions bi]
++ [ "-optP-include", "-optP"++ (autogenComponentModulesDir lbi clbi </> cppHeaderName) ]
++ [ "-#include \"" ++ inc ++ "\"" | inc <- PD.includes bi ]
++ [ "-odir", odir, "-hidir", odir ]
++ (if compilerVersion c >= mkVersion [6,8]
then ["-stubdir", odir] else [])
++ ghcPackageFlags lbi clbi
++ (case withOptimization lbi of
NoOptimisation -> []
NormalOptimisation -> ["-O"]
MaximumOptimisation -> ["-O2"])
++ hcOptions GHC bi
++ languageToFlags c (defaultLanguage bi)
++ extensionsToFlags c (usedExtensions bi)
where c = compiler lbi
ghcPackageFlags :: LocalBuildInfo -> ComponentLocalBuildInfo -> [String]
ghcPackageFlags lbi clbi
| ghcVer >= mkVersion [6,11]
= concat [ ["-package-id", display ipkgid]
| (ipkgid, _) <- componentPackageDeps clbi ]
| otherwise = concat [ ["-package", display pkgid]
| (_, pkgid) <- componentPackageDeps clbi ]
where
ghcVer = compilerVersion (compiler lbi)
ghcPackageDbOptions :: LocalBuildInfo -> [String]
ghcPackageDbOptions lbi = case dbstack of
(GlobalPackageDB:UserPackageDB:dbs) -> concatMap specific dbs
(GlobalPackageDB:dbs) -> ("-no-user-" ++ packageDbFlag)
: concatMap specific dbs
_ -> ierror
where
specific (SpecificPackageDB db) = [ '-':packageDbFlag, db ]
specific _ = ierror
ierror = error ("internal error: unexpected package db stack: " ++ show dbstack)
dbstack = withPackageDB lbi
packageDbFlag
| compilerVersion (compiler lbi) < mkVersion [7,5]
= "package-conf"
| otherwise
= "package-db"
constructCcCmdLine :: LocalBuildInfo -> BuildInfo -> ComponentLocalBuildInfo
-> FilePath -> FilePath -> Verbosity -> (FilePath,[String])
constructCcCmdLine lbi bi clbi pref filename verbosity
= let odir | compilerVersion (compiler lbi) >= mkVersion [6,4,1] = pref
| otherwise = pref </> takeDirectory filename
-- ghc 6.4.1 fixed a bug in -odir handling
-- for C compilations.
in
(odir,
ghcCcOptions lbi bi clbi odir
++ (if verbosity >= deafening then ["-v"] else [])
++ ["-c",filename])
ghcCcOptions :: LocalBuildInfo -> BuildInfo -> ComponentLocalBuildInfo
-> FilePath -> [String]
ghcCcOptions lbi bi clbi odir
= ["-I" ++ dir | dir <- PD.includeDirs bi]
++ ghcPackageDbOptions lbi
++ ghcPackageFlags lbi clbi
++ ["-optc" ++ opt | opt <- PD.ccOptions bi]
++ (case withOptimization lbi of
NoOptimisation -> []
_ -> ["-optc-O2"])
++ ["-odir", odir]
mkGHCiLibName :: UnitId -> String
mkGHCiLibName lib = getHSLibraryName lib <.> "o"
-- -----------------------------------------------------------------------------
-- Installing
-- |Install executables for GHC.
installExe :: Verbosity
-> LocalBuildInfo
-> FilePath -- ^Where to copy the files to
-> FilePath -- ^Build location
-> (FilePath, FilePath) -- ^Executable (prefix,suffix)
-> PackageDescription
-> Executable
-> IO ()
installExe verbosity lbi binDir buildPref (progprefix, progsuffix) _pkg exe = do
createDirectoryIfMissingVerbose verbosity True binDir
let exeFileName = unUnqualComponentName (exeName exe) <.> exeExtension
fixedExeBaseName = progprefix ++ unUnqualComponentName (exeName exe) ++ progsuffix
installBinary dest = do
installExecutableFile verbosity
(buildPref </> unUnqualComponentName (exeName exe) </> exeFileName)
(dest <.> exeExtension)
stripExe verbosity lbi exeFileName (dest <.> exeExtension)
installBinary (binDir </> fixedExeBaseName)
stripExe :: Verbosity -> LocalBuildInfo -> FilePath -> FilePath -> IO ()
stripExe verbosity lbi name path = when (stripExes lbi) $
case lookupProgram stripProgram (withPrograms lbi) of
Just strip -> runProgram verbosity strip args
Nothing -> unless (buildOS == Windows) $
-- Don't bother warning on windows, we don't expect them to
-- have the strip program anyway.
warn verbosity $ "Unable to strip executable '" ++ name
++ "' (missing the 'strip' program)"
where
args = path : case buildOS of
OSX -> ["-x"] -- By default, stripping the ghc binary on at least
-- some OS X installations causes:
-- HSbase-3.0.o: unknown symbol `_environ'"
-- The -x flag fixes that.
_ -> []
-- |Install for ghc, .hi, .a and, if --with-ghci given, .o
installLib :: Verbosity
-> LocalBuildInfo
-> FilePath -- ^install location
-> FilePath -- ^install location for dynamic libraries
-> FilePath -- ^Build location
-> PackageDescription
-> Library
-> ComponentLocalBuildInfo
-> IO ()
installLib verbosity lbi targetDir dynlibTargetDir builtDir _pkg lib clbi = do
-- copy .hi files over:
let copy src dst n = do
createDirectoryIfMissingVerbose verbosity True dst
installOrdinaryFile verbosity (src </> n) (dst </> n)
copyModuleFiles ext =
findModuleFiles [builtDir] [ext] (allLibModules lib clbi)
>>= installOrdinaryFiles verbosity targetDir
ifVanilla $ copyModuleFiles "hi"
ifProf $ copyModuleFiles "p_hi"
hcrFiles <- findModuleFiles (builtDir : hsSourceDirs (libBuildInfo lib)) ["hcr"] (allLibModules lib clbi)
flip traverse_ hcrFiles $ \(srcBase, srcFile) -> runLhc ["--install-library", srcBase </> srcFile]
-- copy the built library files over:
ifVanilla $ copy builtDir targetDir vanillaLibName
ifProf $ copy builtDir targetDir profileLibName
ifGHCi $ copy builtDir targetDir ghciLibName
ifShared $ copy builtDir dynlibTargetDir sharedLibName
where
cid = compilerId (compiler lbi)
lib_name = componentUnitId clbi
vanillaLibName = mkLibName lib_name
profileLibName = mkProfLibName lib_name
ghciLibName = mkGHCiLibName lib_name
sharedLibName = mkSharedLibName cid lib_name
hasLib = not $ null (allLibModules lib clbi)
&& null (cSources (libBuildInfo lib))
ifVanilla = when (hasLib && withVanillaLib lbi)
ifProf = when (hasLib && withProfLib lbi)
ifGHCi = when (hasLib && withGHCiLib lbi)
ifShared = when (hasLib && withSharedLib lbi)
runLhc = runDbProgram verbosity lhcProgram (withPrograms lbi)
-- -----------------------------------------------------------------------------
-- Registering
registerPackage
:: Verbosity
-> ProgramDb
-> PackageDBStack
-> InstalledPackageInfo
-> HcPkg.RegisterOptions
-> IO ()
registerPackage verbosity progdb packageDbs installedPkgInfo registerOptions =
HcPkg.register (hcPkgInfo progdb) verbosity packageDbs
installedPkgInfo registerOptions
hcPkgInfo :: ProgramDb -> HcPkg.HcPkgInfo
hcPkgInfo progdb = HcPkg.HcPkgInfo { HcPkg.hcPkgProgram = lhcPkgProg
, HcPkg.noPkgDbStack = False
, HcPkg.noVerboseFlag = False
, HcPkg.flagPackageConf = False
, HcPkg.supportsDirDbs = True
, HcPkg.requiresDirDbs = True
, HcPkg.nativeMultiInstance = False -- ?
, HcPkg.recacheMultiInstance = False -- ?
, HcPkg.suppressFilesCheck = True
}
where
Just lhcPkgProg = lookupProgram lhcPkgProgram progdb