module CodeOutput( codeOutput, outputForeignStubs ) where
#include "HsVersions.h"
import GhcPrelude
import AsmCodeGen ( nativeCodeGen )
import LlvmCodeGen ( llvmCodeGen )
import UniqSupply ( mkSplitUniqSupply )
import Finder ( mkStubPaths )
import PprC ( writeCs )
import CmmLint ( cmmLint )
import Packages
import Cmm ( RawCmmGroup )
import HscTypes
import DynFlags
import Config
import Stream (Stream)
import qualified Stream
import FileCleanup
import ErrUtils
import Outputable
import Module
import SrcLoc
import Control.Exception
import System.Directory
import System.FilePath
import System.IO
codeOutput :: DynFlags
-> Module
-> FilePath
-> ModLocation
-> ForeignStubs
-> [(ForeignSrcLang, FilePath)]
-> [InstalledUnitId]
-> Stream IO RawCmmGroup ()
-> IO (FilePath,
(Bool, Maybe FilePath),
[(ForeignSrcLang, FilePath)])
codeOutput dflags this_mod filenm location foreign_stubs foreign_fps pkg_deps
cmm_stream
=
do {
; let linted_cmm_stream =
if gopt Opt_DoCmmLinting dflags
then Stream.mapM do_lint cmm_stream
else cmm_stream
do_lint cmm = withTiming (pure dflags)
(text "CmmLint"<+>brackets (ppr this_mod))
(const ()) $ do
{ case cmmLint dflags cmm of
Just err -> do { log_action dflags
dflags
NoReason
SevDump
noSrcSpan
(defaultDumpStyle dflags)
err
; ghcExit dflags 1
}
Nothing -> return ()
; return cmm
}
; stubs_exist <- outputForeignStubs dflags this_mod location foreign_stubs
; case hscTarget dflags of {
HscAsm -> outputAsm dflags this_mod location filenm
linted_cmm_stream;
HscC -> outputC dflags filenm linted_cmm_stream pkg_deps;
HscLlvm -> outputLlvm dflags filenm linted_cmm_stream;
HscInterpreted -> panic "codeOutput: HscInterpreted";
HscNothing -> panic "codeOutput: HscNothing"
}
; return (filenm, stubs_exist, foreign_fps)
}
doOutput :: String -> (Handle -> IO a) -> IO a
doOutput filenm io_action = bracket (openFile filenm WriteMode) hClose io_action
outputC :: DynFlags
-> FilePath
-> Stream IO RawCmmGroup ()
-> [InstalledUnitId]
-> IO ()
outputC dflags filenm cmm_stream packages
= do
rawcmms <- Stream.collect cmm_stream
let rts = getPackageDetails dflags rtsUnitId
let cc_injects = unlines (map mk_include (includes rts))
mk_include h_file =
case h_file of
'"':_ -> "#include "++h_file
'<':_ -> "#include "++h_file
_ -> "#include \""++h_file++"\""
let pkg_names = map installedUnitIdString packages
doOutput filenm $ \ h -> do
hPutStr h ("/* GHC_PACKAGES " ++ unwords pkg_names ++ "\n*/\n")
hPutStr h cc_injects
writeCs dflags h rawcmms
outputAsm :: DynFlags -> Module -> ModLocation -> FilePath
-> Stream IO RawCmmGroup ()
-> IO ()
outputAsm dflags this_mod location filenm cmm_stream
| cGhcWithNativeCodeGen == "YES"
= do ncg_uniqs <- mkSplitUniqSupply 'n'
debugTraceMsg dflags 4 (text "Outputing asm to" <+> text filenm)
_ <- doOutput filenm $
\h ->
nativeCodeGen dflags this_mod location h ncg_uniqs cmm_stream
return ()
| otherwise
= panic "This compiler was built without a native code generator"
outputLlvm :: DynFlags -> FilePath -> Stream IO RawCmmGroup () -> IO ()
outputLlvm dflags filenm cmm_stream
= do ncg_uniqs <- mkSplitUniqSupply 'n'
doOutput filenm $
\f ->
llvmCodeGen dflags f ncg_uniqs cmm_stream
outputForeignStubs :: DynFlags -> Module -> ModLocation -> ForeignStubs
-> IO (Bool,
Maybe FilePath)
outputForeignStubs dflags mod location stubs
= do
let stub_h = mkStubPaths dflags (moduleName mod) location
stub_c <- newTempName dflags TFL_CurrentModule "c"
case stubs of
NoStubs ->
return (False, Nothing)
ForeignStubs h_code c_code -> do
let
stub_c_output_d = pprCode CStyle c_code
stub_c_output_w = showSDoc dflags stub_c_output_d
stub_h_output_d = pprCode CStyle h_code
stub_h_output_w = showSDoc dflags stub_h_output_d
createDirectoryIfMissing True (takeDirectory stub_h)
dumpIfSet_dyn dflags Opt_D_dump_foreign
"Foreign export header file" stub_h_output_d
let rts_includes =
let rts_pkg = getPackageDetails dflags rtsUnitId in
concatMap mk_include (includes rts_pkg)
mk_include i = "#include \"" ++ i ++ "\"\n"
ffi_includes | cLibFFI = "#include \"ffi.h\"\n"
| otherwise = ""
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
stub_c_file_exists
<- outputForeignStubs_help stub_c stub_c_output_w
("#define IN_STG_CODE 0\n" ++
"#include \"Rts.h\"\n" ++
rts_includes ++
ffi_includes ++
cplusplus_hdr)
cplusplus_ftr
return (stub_h_file_exists, if stub_c_file_exists
then Just stub_c
else Nothing )
where
cplusplus_hdr = "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"
cplusplus_ftr = "#ifdef __cplusplus\n}\n#endif\n"
outputForeignStubs_help :: FilePath -> String -> String -> String -> IO Bool
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