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(..), dopt_OutName )
35 import TmpFiles ( newTempName )
36 import UniqSupply ( mkSplitUniqSupply )
38 import IO ( IOMode(..), hClose, openFile, Handle )
42 %************************************************************************
46 %************************************************************************
49 codeOutput :: DynFlags
51 -> [TyCon] -- Local tycons
52 -> [CoreBind] -- Core bindings
53 -> [(StgBinding,[Id])] -- The STG program with SRTs
54 -> SDoc -- C stubs for foreign exported functions
55 -> SDoc -- Header file prototype for foreign exported functions
56 -> AbstractC -- Compiled abstract C
57 -> IO (Maybe FilePath, Maybe FilePath)
58 codeOutput dflags mod_name tycons core_binds stg_binds
59 c_code h_code flat_abstractC
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 let filenm = dopt_OutName dflags
67 stub_names <- outputForeignStubs dflags c_code h_code
68 case dopt_HscLang dflags of
69 HscInterpreted -> return stub_names
70 HscAsm -> outputAsm dflags filenm flat_abstractC
72 HscC -> outputC dflags filenm flat_abstractC
74 HscJava -> outputJava dflags filenm mod_name tycons core_binds
77 doOutput :: String -> (Handle -> IO ()) -> IO ()
78 doOutput filenm io_action
79 = (do handle <- openFile filenm WriteMode
82 `catch` (\err -> pprPanic "Failed to open or write code output file"
87 %************************************************************************
91 %************************************************************************
94 outputC dflags filenm flat_absC
95 = do dumpIfSet_dyn dflags Opt_D_dump_realC "Real C" (dumpRealC flat_absC)
96 doOutput filenm (\ h -> writeRealC h flat_absC)
100 %************************************************************************
102 \subsection{Assembler}
104 %************************************************************************
107 outputAsm dflags filenm flat_absC
109 #ifndef OMIT_NATIVE_CODEGEN
111 = do ncg_uniqs <- mkSplitUniqSupply 'n'
112 let (stix_final, ncg_output_d) = nativeCodeGen flat_absC ncg_uniqs
113 dumpIfSet_dyn dflags Opt_D_dump_stix "Final stix code" stix_final
114 dumpIfSet_dyn dflags Opt_D_dump_asm "Asm code" ncg_output_d
115 doOutput filenm ( \f -> printForAsm f ncg_output_d)
118 #else /* OMIT_NATIVE_CODEGEN */
120 = pprPanic "This compiler was built without a native code generator"
121 (text "Use -fvia-C instead")
127 %************************************************************************
131 %************************************************************************
134 outputJava dflags filenm mod tycons core_binds
135 = doOutput filenm (\ f -> printForUser f pp_java)
136 -- User style printing for now to keep indentation
138 java_code = javaGen mod [{- Should be imports-}] tycons core_binds
139 pp_java = PrintJava.compilationUnit java_code
143 %************************************************************************
145 \subsection{Foreign import/export}
147 %************************************************************************
150 outputForeignStubs dflags c_code h_code
152 dumpIfSet_dyn dflags Opt_D_dump_foreign
153 "Foreign export header file" stub_h_output_d
156 <- outputForeignStubs_help True{-.h output-} stub_h_output_w
158 dumpIfSet_dyn dflags Opt_D_dump_foreign
159 "Foreign export stubs" stub_c_output_d
162 <- outputForeignStubs_help False{-not .h-} stub_c_output_w
164 return (maybe_stub_h_file, maybe_stub_c_file)
166 -- C stubs for "foreign export"ed functions.
167 stub_c_output_d = pprCode CStyle c_code
168 stub_c_output_w = showSDoc stub_c_output_d
170 -- Header file protos for "foreign export"ed functions.
171 stub_h_output_d = pprCode CStyle h_code
172 stub_h_output_w = showSDoc stub_h_output_d
175 -- Don't use doOutput for dumping the f. export stubs
176 -- since it is more than likely that the stubs file will
177 -- turn out to be empty, in which case no file should be created.
178 outputForeignStubs_help is_header "" = return Nothing
179 outputForeignStubs_help is_header doc_str
180 = 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"