+++ /dev/null
-%
-% (c) The GRASP/AQUA Project, Glasgow University, 1993-1998
-%
-\section{Code output phase}
-
-\begin{code}
-module CodeOutput( codeOutput, outputForeignStubs ) where
-
-#include "HsVersions.h"
-
-#ifndef OMIT_NATIVE_CODEGEN
-import UniqSupply ( mkSplitUniqSupply )
-import AsmCodeGen ( nativeCodeGen )
-#endif
-
-#ifdef ILX
-import IlxGen ( ilxGen )
-#endif
-
-#ifdef JAVA
-import JavaGen ( javaGen )
-import qualified PrintJava
-import OccurAnal ( occurAnalyseBinds )
-#endif
-
-import Finder ( mkStubPaths )
-import PprC ( writeCs )
-import CmmLint ( cmmLint )
-import Packages
-import Util
-import FastString ( unpackFS )
-import Cmm ( Cmm )
-import HscTypes
-import DynFlags
-import ErrUtils ( dumpIfSet_dyn, showPass, ghcExit )
-import Outputable
-import Pretty ( Mode(..), printDoc )
-import Module ( Module, ModLocation(..) )
-import List ( nub )
-import Maybes ( firstJust )
-
-import Distribution.Package ( showPackageId )
-import Directory ( doesFileExist )
-import Monad ( when )
-import IO
-\end{code}
-
-%************************************************************************
-%* *
-\subsection{Steering}
-%* *
-%************************************************************************
-
-\begin{code}
-codeOutput :: DynFlags
- -> Module
- -> ModLocation
- -> ForeignStubs
- -> [PackageId]
- -> [Cmm] -- Compiled C--
- -> IO (Bool{-stub_h_exists-}, Bool{-stub_c_exists-})
-
-codeOutput dflags this_mod location foreign_stubs pkg_deps flat_abstractC
- =
- -- You can have C (c_output) or assembly-language (ncg_output),
- -- but not both. [Allowing for both gives a space leak on
- -- flat_abstractC. WDP 94/10]
-
- -- Dunno if the above comment is still meaningful now. JRS 001024.
-
- do { when (dopt Opt_DoCmmLinting dflags) $ do
- { showPass dflags "CmmLint"
- ; let lints = map cmmLint flat_abstractC
- ; case firstJust lints of
- Just err -> do { printDump err
- ; ghcExit dflags 1
- }
- Nothing -> return ()
- }
-
- ; showPass dflags "CodeOutput"
- ; let filenm = hscOutName dflags
- ; stubs_exist <- outputForeignStubs dflags this_mod location foreign_stubs
- ; case hscTarget dflags of {
- HscInterpreted -> return ();
- HscAsm -> outputAsm dflags filenm flat_abstractC;
- HscC -> outputC dflags filenm this_mod location
- flat_abstractC stubs_exist pkg_deps
- foreign_stubs;
- HscJava ->
-#ifdef JAVA
- outputJava dflags filenm mod_name tycons core_binds;
-#else
- panic "Java support not compiled into this ghc";
-#endif
- HscILX ->
-#ifdef ILX
- let tycons = typeEnvTyCons type_env in
- outputIlx dflags filenm mod_name tycons stg_binds;
-#else
- panic "ILX support not compiled into this ghc";
-#endif
- }
- ; return stubs_exist
- }
-
-doOutput :: String -> (Handle -> IO ()) -> IO ()
-doOutput filenm io_action = bracket (openFile filenm WriteMode) hClose io_action
-\end{code}
-
-
-%************************************************************************
-%* *
-\subsection{C}
-%* *
-%************************************************************************
-
-\begin{code}
-outputC dflags filenm mod location flat_absC
- (stub_h_exists, _) packages foreign_stubs
- = do
- -- figure out which header files to #include in the generated .hc file:
- --
- -- * extra_includes from packages
- -- * -#include options from the cmdline and OPTIONS pragmas
- -- * the _stub.h file, if there is one.
- --
- pkg_configs <- getExplicitPackagesAnd dflags packages
- let pkg_names = map (showPackageId.package) pkg_configs
-
- c_includes <- getPackageCIncludes pkg_configs
- let cmdline_includes = cmdlineHcIncludes dflags -- -#include options
-
- ffi_decl_headers
- = case foreign_stubs of
- NoStubs -> []
- ForeignStubs _ _ fdhs _ -> map unpackFS (nub fdhs)
- -- Remove duplicates, because distinct foreign import decls
- -- may cite the same #include. Order doesn't matter.
-
- all_headers = c_includes
- ++ reverse cmdline_includes
- ++ ffi_decl_headers
-
- let cc_injects = unlines (map mk_include all_headers)
- mk_include h_file =
- case h_file of
- '"':_{-"-} -> "#include "++h_file
- '<':_ -> "#include "++h_file
- _ -> "#include \""++h_file++"\""
-
- doOutput filenm $ \ h -> do
- hPutStr h ("/* GHC_PACKAGES " ++ unwords pkg_names ++ "\n*/\n")
- hPutStr h cc_injects
- when stub_h_exists $
- hPutStrLn h ("#include \"" ++ (filenameOf stub_h) ++ "\"")
- writeCs dflags h flat_absC
- where
- (_, stub_h) = mkStubPaths dflags mod location
-\end{code}
-
-
-%************************************************************************
-%* *
-\subsection{Assembler}
-%* *
-%************************************************************************
-
-\begin{code}
-outputAsm dflags filenm flat_absC
-
-#ifndef OMIT_NATIVE_CODEGEN
-
- = do ncg_uniqs <- mkSplitUniqSupply 'n'
- ncg_output_d <- _scc_ "NativeCodeGen"
- nativeCodeGen dflags flat_absC ncg_uniqs
- dumpIfSet_dyn dflags Opt_D_dump_asm "Asm code" (docToSDoc ncg_output_d)
- _scc_ "OutputAsm" doOutput filenm $
- \f -> printDoc LeftMode f ncg_output_d
- where
-
-#else /* OMIT_NATIVE_CODEGEN */
-
- = pprPanic "This compiler was built without a native code generator"
- (text "Use -fvia-C instead")
-
-#endif
-\end{code}
-
-
-%************************************************************************
-%* *
-\subsection{Java}
-%* *
-%************************************************************************
-
-\begin{code}
-#ifdef JAVA
-outputJava dflags filenm mod tycons core_binds
- = doOutput filenm (\ f -> printForUser f alwaysQualify pp_java)
- -- User style printing for now to keep indentation
- where
- occ_anal_binds = occurAnalyseBinds core_binds
- -- Make sure we have up to date dead-var information
- java_code = javaGen mod [{- Should be imports-}] tycons occ_anal_binds
- pp_java = PrintJava.compilationUnit java_code
-#endif
-\end{code}
-
-
-%************************************************************************
-%* *
-\subsection{Ilx}
-%* *
-%************************************************************************
-
-\begin{code}
-#ifdef ILX
-outputIlx dflags filename mod tycons stg_binds
- = doOutput filename (\ f -> printForC f pp_ilx)
- where
- pp_ilx = ilxGen mod tycons stg_binds
-#endif
-\end{code}
-
-
-%************************************************************************
-%* *
-\subsection{Foreign import/export}
-%* *
-%************************************************************************
-
-\begin{code}
-outputForeignStubs :: DynFlags -> Module -> ModLocation -> ForeignStubs
- -> IO (Bool, -- Header file created
- Bool) -- C file created
-outputForeignStubs dflags mod location stubs
- | NoStubs <- stubs = do
- -- When compiling External Core files, may need to use stub
- -- files from a previous compilation
- stub_c_exists <- doesFileExist stub_c
- stub_h_exists <- doesFileExist stub_h
- return (stub_h_exists, stub_c_exists)
-
- | ForeignStubs h_code c_code _ _ <- stubs
- = do
- let
- stub_c_output_d = pprCode CStyle c_code
- stub_c_output_w = showSDoc stub_c_output_d
-
- -- Header file protos for "foreign export"ed functions.
- stub_h_output_d = pprCode CStyle h_code
- stub_h_output_w = showSDoc stub_h_output_d
- -- in
-
- createDirectoryHierarchy (directoryOf stub_c)
-
- dumpIfSet_dyn dflags Opt_D_dump_foreign
- "Foreign export header file" stub_h_output_d
-
- -- we need the #includes from the rts package for the stub files
- let rtsid = rtsPackageId (pkgState dflags)
- rts_includes
- | ExtPackage pid <- rtsid =
- let rts_pkg = getPackageDetails (pkgState dflags) pid in
- concatMap mk_include (includes rts_pkg)
- | otherwise = []
- mk_include i = "#include \"" ++ i ++ "\"\n"
-
- stub_h_file_exists
- <- outputForeignStubs_help stub_h stub_h_output_w
- ("#include \"HsFFI.h\"\n" ++ cplusplus_hdr) cplusplus_ftr
-
- dumpIfSet_dyn dflags Opt_D_dump_foreign
- "Foreign export stubs" stub_c_output_d
-
- stub_c_file_exists
- <- outputForeignStubs_help stub_c stub_c_output_w
- ("#define IN_STG_CODE 0\n" ++
- "#include \"Rts.h\"\n" ++
- rts_includes ++
- cplusplus_hdr)
- cplusplus_ftr
- -- We're adding the default hc_header to the stub file, but this
- -- isn't really HC code, so we need to define IN_STG_CODE==0 to
- -- avoid the register variables etc. being enabled.
-
- return (stub_h_file_exists, stub_c_file_exists)
- where
- (stub_c, stub_h) = mkStubPaths dflags mod location
-
-cplusplus_hdr = "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"
-cplusplus_ftr = "#ifdef __cplusplus\n}\n#endif\n"
-
--- Don't use doOutput for dumping the f. export stubs
--- since it is more than likely that the stubs file will
--- turn out to be empty, in which case no file should be created.
-outputForeignStubs_help fname "" header footer = return False
-outputForeignStubs_help fname doc_str header footer
- = do writeFile fname (header ++ doc_str ++ '\n':footer ++ "\n")
- return True
-\end{code}
-
projects / ghc-hetmet.git / blobdiff