-----------------------------------------------------------------------------
--- $Id: DriverMkDepend.hs,v 1.17 2002/02/05 14:42:08 simonpj Exp $
+-- $Id: DriverMkDepend.hs,v 1.34 2004/11/26 16:20:52 simonmar Exp $
--
-- GHC Driver
--
--
-----------------------------------------------------------------------------
-module DriverMkDepend where
+module DriverMkDepend (
+ doMkDependHSPhase, beginMkDependHS, endMkDependHS
+ ) where
#include "HsVersions.h"
-import DriverState
+import HscTypes ( IfacePackage(..) )
+import GetImports ( getImports )
+import CmdLineOpts ( DynFlags )
+import DriverState
import DriverUtil
import DriverFlags
import SysTools ( newTempName )
import qualified SysTools
-import Module
-import Module ( isHomeModule )
-import Finder ( findModuleDep )
-import HscTypes ( ModuleLocation(..) )
-import Util
+import Module ( Module, ModLocation(..), moduleUserString)
+import Finder ( findModule, hiBootExt, hiBootVerExt,
+ mkHomeModLocation, FindResult(..) )
+import Util ( global, maybePrefixMatch )
import Panic
-import IOExts
-import Exception
+import DATA_IOREF ( IORef, readIORef, writeIORef )
+import EXCEPTION
import Directory
import IO
-import Monad
-import Maybe
+import Monad ( when )
+import Maybe ( isJust )
+
+#if __GLASGOW_HASKELL__ <= 408
+import Panic ( catchJust, ioErrors )
+#endif
-------------------------------------------------------------------------------
-- mkdependHS
-- flags
GLOBAL_VAR(v_Dep_makefile, "Makefile", String);
GLOBAL_VAR(v_Dep_include_prelude, False, Bool);
-GLOBAL_VAR(v_Dep_exclude_mods, [], [String]);
+GLOBAL_VAR(v_Dep_exclude_mods, ["GHC.Prim"], [String]);
GLOBAL_VAR(v_Dep_suffixes, [], [String]);
GLOBAL_VAR(v_Dep_warnings, True, Bool);
GLOBAL_VAR(v_Dep_makefile_hdl, error "dep_makefile_hdl", Maybe Handle);
GLOBAL_VAR(v_Dep_tmp_file, error "dep_tmp_file", String);
GLOBAL_VAR(v_Dep_tmp_hdl, error "dep_tmp_hdl", Handle);
-GLOBAL_VAR(v_Dep_dir_contents, error "dep_dir_contents", [(String,[String])]);
depStartMarker = "# DO NOT DELETE: Beginning of Haskell dependencies"
depEndMarker = "# DO NOT DELETE: End of Haskell dependencies"
-- write the magic marker into the tmp file
hPutStrLn tmp_hdl depStartMarker
- -- cache the contents of all the import directories, for future
- -- reference.
- import_dirs <- readIORef v_Import_paths
- pkg_import_dirs <- getPackageImportPath
- import_dir_contents <- mapM softGetDirectoryContents import_dirs
- pkg_import_dir_contents <- mapM softGetDirectoryContents pkg_import_dirs
- writeIORef v_Dep_dir_contents
- (zip import_dirs import_dir_contents ++
- zip pkg_import_dirs pkg_import_dir_contents)
-
return ()
-endMkDependHS :: IO ()
-endMkDependHS = do
+doMkDependHSPhase dflags basename suff input_fn
+ = do src <- readFile input_fn
+ let (import_sources, import_normals, mod_name) = getImports src
+ let orig_fn = basename ++ '.':suff
+ location' <- mkHomeModLocation mod_name orig_fn
+
+ -- take -ohi into account if present
+ ohi <- readIORef v_Output_hi
+ let location | Just fn <- ohi = location'{ ml_hi_file = fn }
+ | otherwise = location'
+
+ deps_sources <- mapM (findDependency dflags True orig_fn) import_sources
+ deps_normals <- mapM (findDependency dflags False orig_fn) import_normals
+ let deps = deps_sources ++ deps_normals
+
+ osuf <- readIORef v_Object_suf
+ extra_suffixes <- readIORef v_Dep_suffixes
+ let suffixes = map (++ ('_':osuf)) extra_suffixes
+ obj_file = ml_obj_file location
+ objs = obj_file : map (replaceFilenameSuffix obj_file) suffixes
+
+ -- Handle for file that accumulates dependencies
+ hdl <- readIORef v_Dep_tmp_hdl
+
+ -- std dependency of the object(s) on the source file
+ hPutStrLn hdl (unwords (map escapeSpaces objs) ++ " : " ++
+ escapeSpaces (basename ++ '.':suff))
+
+ let genDep (dep, False {- not an hi file -}) =
+ hPutStrLn hdl (unwords (map escapeSpaces objs) ++ " : " ++
+ escapeSpaces dep)
+ genDep (dep, True {- is an hi file -}) = do
+ hisuf <- readIORef v_Hi_suf
+ let
+ -- In order to construct hi files with alternate suffixes, we
+ -- now have to find the "basename" of the hi file. This is
+ -- difficult because we can't just split the hi filename
+ -- at the last dot - the hisuf might have dots in it. So we
+ -- check whether the hi filename ends in hisuf, and if it does,
+ -- we strip off hisuf, otherwise we strip everything after the
+ -- last dot.
+ dep_base
+ | Just rest <- maybePrefixMatch rev_hisuf rev_dep
+ = reverse rest
+ | otherwise
+ = remove_suffix '.' dep
+ where
+ rev_hisuf = reverse hisuf
+ rev_dep = reverse dep
+
+ deps = dep : map (\suf -> dep_base ++ suf ++ '_':hisuf)
+ extra_suffixes
+ -- length objs should be == length deps
+ sequence_ (zipWith (\o d -> hPutStrLn hdl (escapeSpaces o ++ " : " ++ escapeSpaces d)) objs deps)
+
+ sequence_ (map genDep [ d | Just d <- deps ])
+ return location
+
+-- add the lines to dep_makefile:
+ -- always:
+ -- this.o : this.hs
+
+ -- if the dependency is on something other than a .hi file:
+ -- this.o this.p_o ... : dep
+ -- otherwise
+ -- if the import is {-# SOURCE #-}
+ -- this.o this.p_o ... : dep.hi-boot[-$vers]
+
+ -- else
+ -- this.o ... : dep.hi
+ -- this.p_o ... : dep.p_hi
+ -- ...
+
+ -- (where .o is $osuf, and the other suffixes come from
+ -- the cmdline -s options).
+
+
+
+endMkDependHS :: DynFlags -> IO ()
+endMkDependHS dflags = do
makefile <- readIORef v_Dep_makefile
makefile_hdl <- readIORef v_Dep_makefile_hdl
tmp_file <- readIORef v_Dep_tmp_file
-- Create a backup of the original makefile
when (isJust makefile_hdl)
- (SysTools.copy ("Backing up " ++ makefile) makefile (makefile++".bak"))
+ (SysTools.copy dflags ("Backing up " ++ makefile)
+ makefile (makefile++".bak"))
-- Copy the new makefile in place
- SysTools.copy "Installing new makefile" tmp_file makefile
+ SysTools.copy dflags "Installing new makefile" tmp_file makefile
-findDependency :: Bool -> FilePath -> ModuleName -> IO (Maybe (String, Bool))
-findDependency is_source src imp = do
+findDependency :: DynFlags -> Bool -> FilePath -> Module -> IO (Maybe (String, Bool))
+findDependency dflags is_source src imp = do
excl_mods <- readIORef v_Dep_exclude_mods
include_prelude <- readIORef v_Dep_include_prelude
- let imp_mod = moduleNameUserString imp
+ let imp_mod = moduleUserString imp
if imp_mod `elem` excl_mods
then return Nothing
else do
- r <- findModuleDep imp is_source
+ r <- findModule dflags imp True{-explicit-}
case r of
- Just (mod,loc)
- | isHomeModule mod || include_prelude
- -> return (Just (ml_hi_file loc, not is_source))
- | otherwise
+ Found loc pkg
+ -- not in this package: we don't need a dependency
+ | ExternalPackage _ <- pkg, not include_prelude
-> return Nothing
- Nothing -> throwDyn (ProgramError
- (src ++ ": " ++ "can't locate import `" ++ imp_mod ++ "'"))
+
+ -- normal import: just depend on the .hi file
+ | not is_source
+ -> return (Just (ml_hi_file loc, not is_source))
+
+ -- if it's a source import, we want to generate a dependency
+ -- on the .hi-boot file, not the .hi file
+ | otherwise
+ -> let hi_file = ml_hi_file loc
+ boot_hi_file = replaceFilenameSuffix hi_file hiBootExt
+ boot_ver_hi_file = replaceFilenameSuffix hi_file hiBootVerExt
+ in do
+ b <- doesFileExist boot_ver_hi_file
+ if b
+ then return (Just (boot_ver_hi_file, not is_source))
+ else do
+ b <- doesFileExist boot_hi_file
+ if b
+ then return (Just (boot_hi_file, not is_source))
+ else return (Just (hi_file, not is_source))
+
+ _ -> throwDyn (ProgramError
+ (src ++ ": " ++ "can't locate import `" ++ imp_mod ++ "'" ++
+ if is_source then " (SOURCE import)" else ""))
projects / ghc-hetmet.git / blobdiff