X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FCodeOutput.lhs;h=8e4abbc9685d5cbdb61b89cff0032b5cbc343b78;hb=5c67b7e313b2455ca65d5aa5970d86889145e97e;hp=c3209649ce3353f7f84b3d166246b222e2d010f1;hpb=ecb42f44d097573ec943be38660137cf7fb3ad61;p=ghc-hetmet.git diff --git a/ghc/compiler/main/CodeOutput.lhs b/ghc/compiler/main/CodeOutput.lhs index c320964..8e4abbc 100644 --- a/ghc/compiler/main/CodeOutput.lhs +++ b/ghc/compiler/main/CodeOutput.lhs @@ -4,7 +4,7 @@ \section{Code output phase} \begin{code} -module CodeOutput( codeOutput ) where +module CodeOutput( codeOutput, outputForeignStubs ) where #include "HsVersions.h" @@ -17,28 +17,34 @@ import AsmCodeGen ( nativeCodeGen ) import IlxGen ( ilxGen ) #endif +#ifdef JAVA import JavaGen ( javaGen ) import qualified PrintJava - -import TyCon ( TyCon ) -import Id ( Id ) -import CoreSyn ( CoreBind ) import OccurAnal ( occurAnalyseBinds ) -import StgSyn ( StgBinding ) -import AbsCSyn ( AbstractC ) -import PprAbsC ( dumpRealC, writeRealC ) -import Module ( Module ) -import CmdLineOpts -import ErrUtils ( dumpIfSet_dyn, showPass ) -import Outputable -import CmdLineOpts ( DynFlags, HscLang(..), dopt_OutName ) -import TmpFiles ( newTempName ) +#endif -import IO ( IOMode(..), hClose, openFile, Handle ) -import IO ( hPutStr, stderr) -- Debugging +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} @@ -48,45 +54,63 @@ import IO ( hPutStr, stderr) -- Debugging \begin{code} codeOutput :: DynFlags -> Module - -> [TyCon] -- Local tycons - -> [CoreBind] -- Core bindings - -> [(StgBinding,[Id])] -- The STG program with SRTs - -> SDoc -- C stubs for foreign exported functions - -> SDoc -- Header file prototype for foreign exported functions - -> AbstractC -- Compiled abstract C - -> IO (Maybe FilePath, Maybe FilePath) -codeOutput dflags mod_name tycons core_binds stg_binds - c_code h_code flat_abstractC - = -- You can have C (c_output) or assembly-language (ncg_output), + -> 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 + | HscNothing <- hscTarget dflags + -- We aren't interested in any code when HscNothing is our target. + = return (False, False) + | otherwise + = + -- 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 { showPass dflags "CodeOutput" - ; let filenm = dopt_OutName dflags - ; stub_names <- outputForeignStubs dflags c_code h_code - ; case dopt_HscLang dflags of - HscInterpreted -> return stub_names - HscAsm -> outputAsm dflags filenm flat_abstractC - >> return stub_names - HscC -> outputC dflags filenm flat_abstractC - >> return stub_names - HscJava -> outputJava dflags filenm mod_name tycons core_binds - >> return stub_names + 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 - HscILX -> outputIlx dflags filenm mod_name tycons stg_binds - >> return stub_names + let tycons = typeEnvTyCons type_env in + outputIlx dflags filenm mod_name tycons stg_binds; +#else + panic "ILX support not compiled into this ghc"; #endif + HscNothing -> return (); + } + ; return stubs_exist } doOutput :: String -> (Handle -> IO ()) -> IO () -doOutput filenm io_action - = (do handle <- openFile filenm WriteMode - io_action handle - hClose handle) - `catch` (\err -> pprPanic "Failed to open or write code output file" - (text filenm)) +doOutput filenm io_action = bracket (openFile filenm WriteMode) hClose io_action \end{code} @@ -97,9 +121,47 @@ doOutput filenm io_action %************************************************************************ \begin{code} -outputC dflags filenm flat_absC - = do dumpIfSet_dyn dflags Opt_D_dump_realC "Real C" (dumpRealC flat_absC) - doOutput filenm (\ h -> writeRealC h flat_absC) +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} @@ -115,11 +177,11 @@ outputAsm dflags filenm flat_absC #ifndef OMIT_NATIVE_CODEGEN = do ncg_uniqs <- mkSplitUniqSupply 'n' - let (stix_final, ncg_output_d) = _scc_ "NativeCodeGen" - nativeCodeGen flat_absC ncg_uniqs - dumpIfSet_dyn dflags Opt_D_dump_stix "Final stix code" stix_final - dumpIfSet_dyn dflags Opt_D_dump_asm "Asm code" ncg_output_d - _scc_ "OutputAsm" doOutput filenm ( \f -> printForAsm f ncg_output_d) + 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 */ @@ -138,6 +200,7 @@ outputAsm dflags filenm flat_absC %************************************************************************ \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 @@ -146,6 +209,7 @@ outputJava dflags filenm mod tycons 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} @@ -172,45 +236,73 @@ outputIlx dflags filename mod tycons stg_binds %************************************************************************ \begin{code} -outputForeignStubs dflags c_code h_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 - maybe_stub_h_file - <- outputForeignStubs_help True{-.h output-} stub_h_output_w + -- 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 - maybe_stub_c_file - <- outputForeignStubs_help False{-not .h-} stub_c_output_w - - return (maybe_stub_h_file, maybe_stub_c_file) + 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 - -- C stubs for "foreign export"ed functions. - 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 + (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 is_header "" = return Nothing -outputForeignStubs_help is_header doc_str - = do fname <- newTempName suffix - writeFile fname (include_prefix ++ doc_str) - return (Just fname) - where - suffix - | is_header = "h_stub" - | otherwise = "c_stub" - include_prefix - | is_header = "#include \"HsFFI.h\"\n" - | otherwise = "#include \"RtsAPI.h\"\n" +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}