2 % (c) The GRASP/AQUA Project, Glasgow University, 1993-1998
4 \section{Code output phase}
7 module CodeOutput( codeOutput ) where
9 #include "HsVersions.h"
11 #ifndef OMIT_NATIVE_CODEGEN
12 import AsmCodeGen ( nativeCodeGen )
16 import IlxGen ( ilxGen )
19 import JavaGen ( javaGen )
20 import qualified PrintJava
22 import TyCon ( TyCon )
24 import CoreSyn ( CoreBind )
25 import StgSyn ( StgBinding )
26 import AbsCSyn ( AbstractC )
27 import PprAbsC ( dumpRealC, writeRealC )
28 import Module ( Module )
30 import ErrUtils ( dumpIfSet_dyn )
32 import CmdLineOpts ( DynFlags, HscLang(..), dopt_OutName )
33 import TmpFiles ( newTempName )
34 import UniqSupply ( mkSplitUniqSupply )
36 import IO ( IOMode(..), hClose, openFile, Handle )
40 %************************************************************************
44 %************************************************************************
47 codeOutput :: DynFlags
49 -> [TyCon] -- Local tycons
50 -> [CoreBind] -- Core bindings
51 -> [(StgBinding,[Id])] -- The STG program with SRTs
52 -> SDoc -- C stubs for foreign exported functions
53 -> SDoc -- Header file prototype for foreign exported functions
54 -> AbstractC -- Compiled abstract C
55 -> IO (Maybe FilePath, Maybe FilePath)
56 codeOutput dflags mod_name tycons core_binds stg_binds
57 c_code h_code flat_abstractC
58 = -- You can have C (c_output) or assembly-language (ncg_output),
59 -- but not both. [Allowing for both gives a space leak on
60 -- flat_abstractC. WDP 94/10]
62 -- Dunno if the above comment is still meaningful now. JRS 001024.
64 do let filenm = dopt_OutName dflags
65 stub_names <- outputForeignStubs dflags c_code h_code
66 case dopt_HscLang dflags of
67 HscInterpreted -> return stub_names
68 HscAsm -> outputAsm dflags filenm flat_abstractC
70 HscC -> outputC dflags filenm flat_abstractC
72 HscJava -> outputJava dflags filenm mod_name tycons core_binds
75 doOutput :: String -> (Handle -> IO ()) -> IO ()
76 doOutput filenm io_action
77 = (do handle <- openFile filenm WriteMode
80 `catch` (\err -> pprPanic "Failed to open or write code output file"
85 %************************************************************************
89 %************************************************************************
92 outputC dflags filenm flat_absC
93 = do dumpIfSet_dyn dflags Opt_D_dump_realC "Real C" (dumpRealC flat_absC)
94 doOutput filenm (\ h -> writeRealC h flat_absC)
98 %************************************************************************
100 \subsection{Assembler}
102 %************************************************************************
105 outputAsm dflags filenm flat_absC
107 #ifndef OMIT_NATIVE_CODEGEN
109 = do ncg_uniqs <- mkSplitUniqSupply 'n'
110 let (stix_final, ncg_output_d) = nativeCodeGen flat_absC ncg_uniqs
111 dumpIfSet_dyn dflags Opt_D_dump_stix "Final stix code" stix_final
112 dumpIfSet_dyn dflags Opt_D_dump_asm "Asm code" ncg_output_d
113 doOutput filenm ( \f -> printForAsm f ncg_output_d)
116 #else /* OMIT_NATIVE_CODEGEN */
118 = pprPanic "This compiler was built without a native code generator"
119 (text "Use -fvia-C instead")
125 %************************************************************************
129 %************************************************************************
132 outputJava dflags filenm mod tycons core_binds
133 = doOutput filenm (\ f -> printForUser f pp_java)
134 -- User style printing for now to keep indentation
136 java_code = javaGen mod [{- Should be imports-}] tycons core_binds
137 pp_java = PrintJava.compilationUnit java_code
141 %************************************************************************
143 \subsection{Foreign import/export}
145 %************************************************************************
148 outputForeignStubs dflags c_code h_code
150 dumpIfSet_dyn dflags Opt_D_dump_foreign
151 "Foreign export header file" stub_h_output_d
154 <- outputForeignStubs_help True{-.h output-} stub_h_output_w
156 dumpIfSet_dyn dflags Opt_D_dump_foreign
157 "Foreign export stubs" stub_c_output_d
160 <- outputForeignStubs_help False{-not .h-} stub_c_output_w
162 return (maybe_stub_h_file, maybe_stub_c_file)
164 -- C stubs for "foreign export"ed functions.
165 stub_c_output_d = pprCode CStyle c_code
166 stub_c_output_w = showSDoc stub_c_output_d
168 -- Header file protos for "foreign export"ed functions.
169 stub_h_output_d = pprCode CStyle h_code
170 stub_h_output_w = showSDoc stub_h_output_d
173 -- Don't use doOutput for dumping the f. export stubs
174 -- since it is more than likely that the stubs file will
175 -- turn out to be empty, in which case no file should be created.
176 outputForeignStubs_help is_header "" = return Nothing
177 outputForeignStubs_help is_header doc_str
178 = newTempName suffix >>= \ fname ->
179 writeFile fname (include_prefix ++ doc_str) >>
183 | is_header = "h_stub"
184 | otherwise = "c_stub"
186 | is_header = "#include \"HsFFI.h\"\n"
187 | otherwise = "#include \"RtsAPI.h\"\n"