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 Class ( Class )
25 import CoreSyn ( CoreBind )
26 import StgSyn ( StgBinding )
27 import AbsCSyn ( AbstractC )
28 import PprAbsC ( dumpRealC, writeRealC )
29 import UniqSupply ( UniqSupply )
30 import Module ( Module )
32 import ErrUtils ( dumpIfSet_dyn )
34 import CmdLineOpts ( DynFlags(..), HscLang(..) )
35 import TmpFiles ( newTmpName )
37 import IO ( IOMode(..), hClose, openFile, Handle )
41 %************************************************************************
45 %************************************************************************
48 codeOutput :: DynFlags
50 -> [TyCon] -> [Class] -- Local tycons and classes
51 -> [CoreBind] -- Core bindings
52 -> [(StgBinding,[Id])] -- The STG program with SRTs
53 -> SDoc -- C stubs for foreign exported functions
54 -> SDoc -- Header file prototype for foreign exported functions
55 -> AbstractC -- Compiled abstract C
57 -> IO (Maybe FilePath, Maybe FilePath)
58 codeOutput dflags mod_name tycons classes core_binds stg_binds
59 c_code h_code flat_abstractC ncg_uniqs
60 = -- You can have C (c_output) or assembly-language (ncg_output),
61 -- but not both. [Allowing for both gives a space leak on
62 -- flat_abstractC. WDP 94/10]
64 -- Dunno if the above comment is still meaningful now. JRS 001024.
66 do stub_names <- outputForeignStubs c_code h_code
67 case dopt_HscLang dflags of
68 HscInterpreter -> return stub_names
69 HscAsm filenm -> outputAsm dflags filenm flat_abstractC ncg_uniqs
71 HscC filenm -> outputC dflags filenm flat_abstractC
73 HscJava filenm -> outputJava dflags filenm mod_name tycons core_binds
76 doOutput :: (Handle -> IO ()) -> IO ()
77 doOutput filenm io_action
78 = (do handle <- openFile filenm WriteMode
81 `catch` (\err -> pprPanic "Failed to open or write code output file"
86 %************************************************************************
90 %************************************************************************
93 outputC dflags filenm flat_absC
94 = do dumpIfSet_dyn Opt_D_dump_realC dflags "Real C" (dumpRealC flat_absC)
95 doOutput filenm (\ h -> writeRealC h flat_absC)
99 %************************************************************************
101 \subsection{Assembler}
103 %************************************************************************
106 outputAsm dflags filenm flat_absC ncg_uniqs
108 #ifndef OMIT_NATIVE_CODEGEN
110 = do dumpIfSet_dyn Opt_D_dump_stix dflags "Final stix code" stix_final
111 dumpIfSet_dyn Opt_D_dump_asm dflags "Asm code" ncg_output_d
112 doOutput filenm ( \f -> printForAsm f ncg_output_d)
114 (stix_final, ncg_output_d) = nativeCodeGen flat_absC ncg_uniqs
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 Opt_D_dump_foreign dflags
151 "Foreign export header file" stub_h_output_d
154 <- outputForeignStubs_help True{-.h output-} stub_h_output_w
156 dumpIfSet_dyn Opt_D_dump_foreign dflags
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 switch "" = return Nothing
177 outputForeignStubs_help is_header switch doc_str =
179 Nothing -> return Nothing
180 Just fname -> newTempName suffix >>= \ fname ->
181 writeFile fname (include_prefix ++ doc_str) >>
185 | is_header = "h_stub"
186 | otherwise = "c_stub"
188 | is_header = "#include \"Rts.h\"\n"
189 | otherwise = "#include \"RtsAPI.h\"\n"