\section{Code output phase}
\begin{code}
-module CodeOutput( codeOutput ) where
+module CodeOutput( codeOutput, outputForeignStubs ) where
#include "HsVersions.h"
#ifdef JAVA
import JavaGen ( javaGen )
import qualified PrintJava
+import OccurAnal ( occurAnalyseBinds )
#endif
-import DriverState ( v_HCHeader )
-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 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 CmdLineOpts ( DynFlags, HscLang(..), dopt_OutName )
+import Module ( Module, ModLocation(..) )
+import List ( nub )
+import Maybes ( firstJust )
-import IOExts
+import Distribution.Package ( showPackageId )
+import Directory ( doesFileExist )
import Monad ( when )
import IO
\end{code}
-
%************************************************************************
%* *
\subsection{Steering}
\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
+ -> ModLocation
+ -> ForeignStubs
+ -> [PackageId]
+ -> [Cmm] -- Compiled C--
-> IO (Bool{-stub_h_exists-}, Bool{-stub_c_exists-})
-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),
+
+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 { 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 stub_names
- >> 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
- >> return stub_names
+ outputJava dflags filenm mod_name tycons core_binds;
#else
- panic "Java support not compiled into this ghc"
+ panic "Java support not compiled into this ghc";
#endif
HscILX ->
#ifdef ILX
- 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"
+ 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}
%************************************************************************
\begin{code}
-outputC dflags filenm flat_absC (stub_h_exists, _)
- = do dumpIfSet_dyn dflags Opt_D_dump_realC "Real C" (dumpRealC flat_absC)
- header <- readIORef v_HCHeader
+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 header
+ hPutStr h ("/* GHC_PACKAGES " ++ unwords pkg_names ++ "\n*/\n")
+ hPutStr h cc_injects
when stub_h_exists $
- hPutStrLn h ("#include \"" ++ (hscStubHOutName dflags) ++ "\"")
- writeRealC h flat_absC
+ hPutStrLn h ("#include \"" ++ (filenameOf stub_h) ++ "\"")
+ writeCs dflags h flat_absC
+ where
+ (_, stub_h) = mkStubPaths dflags mod location
\end{code}
#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
+ 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
%************************************************************************
\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
+ -- 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 (hscStubHOutName dflags) stub_h_output_w
+ <- 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
- hc_header <- readIORef v_HCHeader
-
stub_c_file_exists
- <- outputForeignStubs_help (hscStubCOutName dflags) stub_c_output_w
+ <- outputForeignStubs_help stub_c stub_c_output_w
("#define IN_STG_CODE 0\n" ++
- hc_header ++
- "#include \"RtsAPI.h\"\n" ++
+ "#include \"Rts.h\"\n" ++
+ rts_includes ++
cplusplus_hdr)
cplusplus_ftr
- -- we're adding the default hc_header to the stub file, but this
+ -- 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"
projects / ghc-hetmet.git / blobdiff