{-# OPTIONS -cpp #-}
-----------------------------------------------------------------------------
-- |
-- Module : Distribution.Simple.GHC
-- Copyright : Isaac Jones 2003-2007
--
-- Maintainer : Isaac Jones <[email protected]>
-- Stability : alpha
-- Portability : portable
--
-- Build and Install implementations for GHC. See
-- 'Distribution.Simple.GHCPackageConfig.GHCPackageConfig' for
-- registration-related stuff.
{- Copyright (c) 2003-2005, Isaac Jones
All rights reserved.
Redistribution and use in source and binary forms, with or without
modiication, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
* Neither the name of Isaac Jones nor the names of other
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -}
module Distribution.Simple.GHC (
build, makefile, installLib, installExe
) where
import Distribution.Simple.GHCMakefile
import Distribution.Setup ( MakefileFlags(..) )
import Distribution.PackageDescription
( PackageDescription(..), BuildInfo(..),
withLib, setupMessage,
Executable(..), withExe, Library(..),
libModules, hcOptions )
import Distribution.Simple.LocalBuildInfo
( LocalBuildInfo(..), autogenModulesDir )
import Distribution.Simple.Utils( createDirectoryIfMissingVerbose,
rawSystemExit, rawSystemPathExit,
xargs, die, moduleToFilePath,
smartCopySources, findFile, copyFileVerbose,
mkLibName, mkProfLibName, dotToSep,
exeExtension, objExtension)
import Distribution.Package ( PackageIdentifier(..), showPackageId )
import Distribution.Program ( rawSystemProgram, ranlibProgram,
Program(..), ProgramConfiguration(..),
ProgramLocation(..),
lookupProgram, arProgram )
import Distribution.Compiler ( Compiler(..), CompilerFlavor(..),
extensionsToGHCFlag )
import Distribution.Version ( Version(..) )
import qualified Distribution.Simple.GHCPackageConfig as GHC
( localPackageConfig,
canReadLocalPackageConfig )
import Distribution.Verbosity
import Language.Haskell.Extension (Extension(..))
import Control.Monad ( unless, when )
import Data.List ( nub )
import System.Directory ( removeFile, renameFile,
getDirectoryContents, doesFileExist )
import System.FilePath ( (</>), (<.>), takeExtension,
takeDirectory, replaceExtension )
import System.IO
-- System.IO used to export a different try, so we can't use try unqualified
#ifndef __NHC__
import Control.Exception as Try
#else
import IO as Try
#endif
-- -----------------------------------------------------------------------------
-- Building
-- |Building for GHC. If .ghc-packages exists and is readable, add
-- it to the command-line.
build :: PackageDescription -> LocalBuildInfo -> Verbosity -> IO ()
build pkg_descr lbi verbosity = do
let pref = buildDir lbi
let ghcPath = compilerPath (compiler lbi)
ifVanillaLib forceVanilla = when (forceVanilla || withVanillaLib lbi)
ifProfLib = when (withProfLib lbi)
ifGHCiLib = when (withGHCiLib lbi)
-- GHC versions prior to 6.4 didn't have the user package database,
-- so we fake it. TODO: This can go away in due course.
pkg_conf <- if versionBranch (compilerVersion (compiler lbi)) >= [6,4]
then return []
else do pkgConf <- GHC.localPackageConfig
pkgConfReadable <- GHC.canReadLocalPackageConfig
if pkgConfReadable
then return ["-package-conf", pkgConf]
else return []
-- Build lib
withLib pkg_descr () $ \lib -> do
when (verbosity >= verbose) (putStrLn "Building library...")
let libBi = libBuildInfo lib
libTargetDir = pref
forceVanillaLib = TemplateHaskell `elem` extensions libBi
-- TH always needs vanilla libs, even when building for profiling
createDirectoryIfMissingVerbose verbosity True libTargetDir
-- put hi-boot files into place for mutually recurive modules
smartCopySources verbosity (hsSourceDirs libBi)
libTargetDir (libModules pkg_descr) ["hi-boot"] False False
let ghc_vers = compilerVersion (compiler lbi)
packageId | versionBranch ghc_vers >= [6,4]
= showPackageId (package pkg_descr)
| otherwise = pkgName (package pkg_descr)
-- Only use the version number with ghc-6.4 and later
ghcArgs =
pkg_conf
++ ["-package-name", packageId ]
++ constructGHCCmdLine lbi libBi libTargetDir verbosity
++ (libModules pkg_descr)
ghcArgsProf = ghcArgs
++ ["-prof",
"-hisuf", "p_hi",
"-osuf", "p_o"
]
++ ghcProfOptions libBi
unless (null (libModules pkg_descr)) $
do ifVanillaLib forceVanillaLib (rawSystemExit verbosity ghcPath ghcArgs)
ifProfLib (rawSystemExit verbosity ghcPath ghcArgsProf)
-- build any C sources
unless (null (cSources libBi)) $ do
when (verbosity >= verbose) (putStrLn "Building C Sources...")
sequence_ [do let (odir,args) = constructCcCmdLine lbi libBi pref
filename verbosity
createDirectoryIfMissingVerbose verbosity True odir
rawSystemExit verbosity ghcPath args
| filename <- cSources libBi]
-- link:
when (verbosity > verbose) (putStrLn "cabal-linking...")
let cObjs = map (`replaceExtension` objExtension) (cSources libBi)
libName = mkLibName pref (showPackageId (package pkg_descr))
profLibName = mkProfLibName pref (showPackageId (package pkg_descr))
ghciLibName = mkGHCiLibName pref (showPackageId (package pkg_descr))
stubObjs <- sequence [moduleToFilePath [libTargetDir] (x ++"_stub") [objExtension]
| x <- libModules pkg_descr ] >>= return . concat
stubProfObjs <- sequence [moduleToFilePath [libTargetDir] (x ++"_stub") ["p_" ++ objExtension]
| x <- libModules pkg_descr ] >>= return . concat
hObjs <- getHaskellObjects pkg_descr libBi lbi
pref objExtension
hProfObjs <-
if (withProfLib lbi)
then getHaskellObjects pkg_descr libBi lbi
pref ("p_" ++ objExtension)
else return []
unless (null hObjs && null cObjs && null stubObjs) $ do
Try.try (removeFile libName) -- first remove library if it exists
Try.try (removeFile profLibName) -- first remove library if it exists
Try.try (removeFile ghciLibName) -- first remove library if it exists
let arArgs = ["q"++ (if verbosity >= deafening then "v" else "")]
++ [libName]
arObjArgs =
hObjs
++ map (pref </>) cObjs
++ stubObjs
arProfArgs = ["q"++ (if verbosity >= deafening then "v" else "")]
++ [profLibName]
arProfObjArgs =
hProfObjs
++ map (pref </>) cObjs
++ stubProfObjs
ldArgs = ["-r"]
++ ["-x"] -- FIXME: only some systems's ld support the "-x" flag
++ ["-o", ghciLibName <.> "tmp"]
ldObjArgs =
hObjs
++ map (pref </>) cObjs
++ stubObjs
runLd ld args = do
exists <- doesFileExist ghciLibName
-- SDM: we always remove ghciLibName above, so isn't this
-- always False? What is this stuff for anyway?
rawSystemLd verbosity ld
(args ++ if exists then [ghciLibName] else [])
renameFile (ghciLibName <.> "tmp") ghciLibName
#if defined(mingw32_TARGET_OS) || defined(mingw32_HOST_OS)
rawSystemLd = rawSystemExit
maxCommandLineSize = 30 * 1024
#else
rawSystemLd = rawSystemPathExit
--TODO: discover this at configure time on unix
maxCommandLineSize = 30 * 1024
#endif
ld <- findLdProgram lbi
mbAr <- lookupProgram "ar" (withPrograms lbi)
arProg <- case mbAr of
Nothing -> die "no 'ar' program configured"
Just p -> return p
ifVanillaLib False $ xargs maxCommandLineSize
(rawSystemProgram verbosity) arProg arArgs arObjArgs
ifProfLib $ xargs maxCommandLineSize
(rawSystemProgram verbosity) arProg arProfArgs arProfObjArgs
ifGHCiLib $ xargs maxCommandLineSize
runLd ld ldArgs ldObjArgs
-- build any executables
withExe pkg_descr $ \ (Executable exeName' modPath exeBi) -> do
when (verbosity >= verbose)
(putStrLn $ "Building executable: " ++ exeName' ++ "...")
-- 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
-- put hi-boot files into place for mutually recursive modules
-- FIX: what about exeName.hi-boot?
smartCopySources verbosity (hsSourceDirs exeBi)
exeDir (otherModules exeBi) ["hi-boot"] False False
-- build executables
unless (null (cSources exeBi)) $ do
when (verbosity >= verbose) (putStrLn "Building C Sources.")
sequence_ [do let (odir,args) = constructCcCmdLine lbi exeBi
exeDir filename verbosity
createDirectoryIfMissingVerbose verbosity True odir
rawSystemExit verbosity ghcPath args
| filename <- cSources exeBi]
srcMainFile <- findFile (hsSourceDirs exeBi) modPath
let cObjs = map (`replaceExtension` objExtension) (cSources exeBi)
let binArgs linkExe profExe =
pkg_conf
++ (if linkExe
then ["-o", targetDir </> exeNameReal]
else ["-c"])
++ constructGHCCmdLine lbi exeBi exeDir verbosity
++ [exeDir </> x | x <- cObjs]
++ [srcMainFile]
++ ldOptions exeBi
++ ["-l"++lib | lib <- extraLibs exeBi]
++ ["-L"++libDir | libDir <- extraLibDirs exeBi]
++ if profExe
then ["-prof",
"-hisuf", "p_hi",
"-osuf", "p_o"
] ++ ghcProfOptions 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 && TemplateHaskell `elem` extensions exeBi)
(rawSystemExit verbosity ghcPath (binArgs False False))
rawSystemExit verbosity ghcPath (binArgs True (withProfExe lbi))
-- when using -split-objs, we need to search for object files in the
-- Module_split directory for each module.
getHaskellObjects :: PackageDescription -> BuildInfo -> LocalBuildInfo
-> FilePath -> String -> IO [FilePath]
getHaskellObjects pkg_descr _ lbi pref wanted_obj_ext
| splitObjs lbi = do
let dirs = [ pref </> (dotToSep x ++ "_split")
| x <- libModules pkg_descr ]
objss <- mapM 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 </> dotToSep x <.> wanted_obj_ext
| x <- libModules pkg_descr ]
constructGHCCmdLine
:: LocalBuildInfo
-> BuildInfo
-> FilePath
-> Verbosity
-> [String]
constructGHCCmdLine lbi bi odir verbosity =
["--make"]
++ ( if verbosity >= deafening then ["-v"]
else if verbosity >= normal then []
else ["-w", "-v0"])
-- Unsupported extensions have already been checked by configure
++ ghcOptions lbi bi odir
ghcOptions :: LocalBuildInfo -> BuildInfo -> FilePath -> [String]
ghcOptions lbi bi odir
= (if compilerVersion (compiler lbi) > Version [6,4] []
then ["-hide-all-packages"]
else [])
++ (if splitObjs lbi then ["-split-objs"] else [])
++ ["-i"]
++ ["-i" ++ autogenModulesDir lbi]
++ ["-i" ++ buildDir lbi]
++ ["-i" ++ l | l <- nub (hsSourceDirs bi)]
++ ["-I" ++ buildDir lbi]
++ ["-I" ++ dir | dir <- includeDirs bi]
++ ["-optc" ++ opt | opt <- ccOptions bi]
++ [ "-#include \"" ++ inc ++ "\"" | inc <- includes bi ]
++ [ "-odir", odir, "-hidir", odir ]
++ (concat [ ["-package", showPackageId pkg] | pkg <- packageDeps lbi ])
++ (if withOptimization lbi then ["-O"] else [])
++ hcOptions GHC (options bi)
++ snd (extensionsToGHCFlag (extensions bi))
constructCcCmdLine :: LocalBuildInfo -> BuildInfo -> FilePath
-> FilePath -> Verbosity -> (FilePath,[String])
constructCcCmdLine lbi bi pref filename verbosity
= let odir | compilerVersion (compiler lbi) >= Version [6,4,1] [] = pref
| otherwise = pref </> takeDirectory filename
-- ghc 6.4.1 fixed a bug in -odir handling
-- for C compilations.
in
(odir,
ghcCcOptions bi odir
++ (if verbosity > deafening then ["-v"] else [])
++ ["-c",filename])
ghcCcOptions :: BuildInfo -> FilePath -> [String]
ghcCcOptions bi odir
= ["-I" ++ dir | dir <- includeDirs bi]
++ ["-optc" ++ opt | opt <- ccOptions bi]
++ ["-odir", odir]
mkGHCiLibName :: FilePath -- ^file Prefix
-> String -- ^library name.
-> String
mkGHCiLibName pref lib = pref </> ("HS" ++ lib) <.> ".o"
findLdProgram :: LocalBuildInfo -> IO FilePath
#if defined(mingw32_TARGET_OS) || defined(mingw32_HOST_OS)
findLdProgram lbi =
let
compilerDir = takeDirectory $ compilerPath (compiler lbi)
baseDir = takeDirectory compilerDir
binInstallLd = baseDir </> "gcc-lib" </> "ld.exe"
in do
mb <- lookupProgram "ld" (withPrograms lbi)
case fmap programLocation mb of
Just (UserSpecified s) -> return s
-- assume we're using an installed copy of GHC..
_ -> return binInstallLd
#else
findLdProgram _ =
return "ld"
#endif
-- -----------------------------------------------------------------------------
-- Building a Makefile
makefile :: PackageDescription -> LocalBuildInfo -> MakefileFlags -> IO ()
makefile pkg_descr lbi flags = do
let file = case makefileFile flags of
Just f -> f
_otherwise -> "Makefile"
targetExists <- doesFileExist file
when targetExists $
die ("Not overwriting existing copy of " ++ file)
h <- openFile file WriteMode
let Just lib = library pkg_descr
bi = libBuildInfo lib
ghc_vers = compilerVersion (compiler lbi)
packageId | versionBranch ghc_vers >= [6,4]
= showPackageId (package pkg_descr)
| otherwise = pkgName (package pkg_descr)
mbAr <- lookupProgram "ar" (withPrograms lbi)
let arProg = mbAr `programOrElse` "ar"
ld <- findLdProgram lbi
let builddir = buildDir lbi
let decls = [
("modules", unwords (exposedModules lib ++ otherModules bi)),
("GHC", compilerPath (compiler lbi)),
("WAYS", if withProfLib lbi then "p" else ""),
("odir", builddir),
("srcdir", case hsSourceDirs bi of
[one] -> one
_ -> error "makefile: can't cope with multiple hs-source-dirs yet, sorry"),
("package", packageId),
("GHC_OPTS", unwords (
["-package-name", packageId ]
++ ghcOptions lbi bi (buildDir lbi))),
("MAKEFILE", file),
("C_SRCS", unwords (cSources bi)),
("GHC_CC_OPTS", unwords (ghcCcOptions bi (buildDir lbi))),
("GHCI_LIB", mkGHCiLibName builddir (showPackageId (package pkg_descr))),
("AR", arProg),
("LD", ld)
]
hPutStrLn h "# DO NOT EDIT! Automatically generated by Cabal\n"
hPutStrLn h (unlines (map (\(a,b)-> a ++ " = " ++ munge b) decls))
hPutStrLn h makefileTemplate
hClose h
where
munge "" = ""
munge ('#':s) = '\\':'#':munge s
munge ('\\':s) = '/':munge s
-- for Windows, we want to use forward slashes in our pathnames in the Makefile
munge (c:s) = c : munge s
-- -----------------------------------------------------------------------------
-- Installing
-- |Install executables for GHC.
installExe :: Verbosity -- ^verbosity
-> FilePath -- ^install location
-> FilePath -- ^Build location
-> PackageDescription
-> IO ()
installExe verbosity pref buildPref pkg_descr
= do createDirectoryIfMissingVerbose verbosity True pref
withExe pkg_descr $ \ (Executable e _ _) -> do
let exeFileName = e <.> exeExtension
copyFileVerbose verbosity (buildPref </> e </> exeFileName) (pref </> exeFileName)
-- |Install for ghc, .hi, .a and, if --with-ghci given, .o
installLib :: Verbosity -- ^verbosity
-> ProgramConfiguration
-> Bool -- ^has vanilla library
-> Bool -- ^has profiling library
-> Bool -- ^has GHCi libs
-> FilePath -- ^install location
-> FilePath -- ^Build location
-> PackageDescription -> IO ()
installLib verbosity programConf hasVanilla hasProf hasGHCi pref buildPref
pd@PackageDescription{library=Just _,
package=p}
= do ifVanilla $ smartCopySources verbosity [buildPref] pref (libModules pd) ["hi"] True False
ifProf $ smartCopySources verbosity [buildPref] pref (libModules pd) ["p_hi"] True False
let libTargetLoc = mkLibName pref (showPackageId p)
profLibTargetLoc = mkProfLibName pref (showPackageId p)
libGHCiTargetLoc = mkGHCiLibName pref (showPackageId p)
ifVanilla $ copyFileVerbose verbosity (mkLibName buildPref (showPackageId p)) libTargetLoc
ifProf $ copyFileVerbose verbosity (mkProfLibName buildPref (showPackageId p)) profLibTargetLoc
ifGHCi $ copyFileVerbose verbosity (mkGHCiLibName buildPref (showPackageId p)) libGHCiTargetLoc
-- use ranlib or ar -s to build an index. this is necessary
-- on some systems like MacOS X. If we can't find those,
-- don't worry too much about it.
let ranlibProgName = programName $ ranlibProgram
mRanlibProg <- lookupProgram ranlibProgName programConf
case foundProg mRanlibProg of
Just rl -> do ifVanilla $ rawSystemProgram verbosity rl [libTargetLoc]
ifProf $ rawSystemProgram verbosity rl [profLibTargetLoc]
Nothing -> do let arProgName = programName $ arProgram
mArProg <- lookupProgram arProgName programConf
case mArProg of
Just ar -> do ifVanilla $ rawSystemProgram verbosity ar ["-s", libTargetLoc]
ifProf $ rawSystemProgram verbosity ar ["-s", profLibTargetLoc]
Nothing -> setupMessage verbosity "Warning: Unable to generate index for library (missing ranlib and ar)" pd
return ()
where ifVanilla action = when hasVanilla (action >> return ())
ifProf action = when hasProf (action >> return ())
ifGHCi action = when hasGHCi (action >> return ())
installLib _ _ _ _ _ _ _ PackageDescription{library=Nothing}
= die $ "Internal Error. installLibGHC called with no library."
-- Also checks whether the program was actually found.
foundProg :: Maybe Program -> Maybe Program
foundProg Nothing = Nothing
foundProg (Just Program{programLocation=EmptyLocation}) = Nothing
foundProg x = x
programOrElse :: Maybe Program -> FilePath -> FilePath
mb_prog `programOrElse` q =
case mb_prog of
Nothing -> q
Just Program{programLocation=l} ->
case l of
UserSpecified x -> x
FoundOnSystem x -> x
EmptyLocation -> q
|
