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module Rules.Rts (rtsRules, needRtsSymLinks) where
import Packages (rts)
import Hadrian.Utilities
import Settings.Builders.Common
-- | Dynamic RTS library files need symlinks without the dummy version number.
-- This is for backwards compatibility (the old make build system omitted the
-- dummy version number).
-- This rule has priority 2 to override the general rule for generating share
-- library files (see Rules.Library.libraryRules).
rtsRules :: Rules ()
rtsRules = priority 2 $ do
root <- buildRootRules
[ root -/- "//libHSrts_*-ghc*.so",
root -/- "//libHSrts_*-ghc*.dylib",
root -/- "//libHSrts-ghc*.so",
root -/- "//libHSrts-ghc*.dylib"]
|%> \ rtsLibFilePath' -> createFileLinkUntracked
(addRtsDummyVersion $ takeFileName rtsLibFilePath')
rtsLibFilePath'
-- Need symlinks generated by rtsRules.
needRtsSymLinks :: Stage -> [Way] -> Action ()
needRtsSymLinks stage rtsWays
= forM_ (filter (wayUnit Dynamic) rtsWays) $ \ way -> do
let ctx = Context stage rts way
libPath <- libPath ctx
distDir <- distDir stage
rtsLibFile <- takeFileName <$> pkgLibraryFile ctx
need [removeRtsDummyVersion (libPath </> distDir </> rtsLibFile)]
prefix, versionlessPrefix :: String
versionlessPrefix = "libHSrts"
prefix = versionlessPrefix ++ "-1.0"
-- removeRtsDummyVersion "a/libHSrts-1.0-ghc1.2.3.4.so"
-- == "a/libHSrts-ghc1.2.3.4.so"
removeRtsDummyVersion :: FilePath -> FilePath
removeRtsDummyVersion = replaceLibFilePrefix prefix versionlessPrefix
-- addRtsDummyVersion "a/libHSrts-ghc1.2.3.4.so"
-- == "a/libHSrts-1.0-ghc1.2.3.4.so"
addRtsDummyVersion :: FilePath -> FilePath
addRtsDummyVersion = replaceLibFilePrefix versionlessPrefix prefix
replaceLibFilePrefix :: String -> String -> FilePath -> FilePath
replaceLibFilePrefix oldPrefix newPrefix oldFilePath = let
oldFileName = takeFileName oldFilePath
newFileName = maybe
(error $ "Expected RTS library file to start with " ++ oldPrefix)
(newPrefix ++)
(stripPrefix oldPrefix oldFileName)
in replaceFileName oldFilePath newFileName
|
