X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fmain%2FDriverPipeline.hs;h=16a172598351af288384511ed61ff21e0f9b0c8a;hp=d66f1473b0c53b8ec07eff4f69e8255e8bba2ade;hb=b1ab4b8a607addc4d097588db5761313c996a41f;hpb=ee565d464248078a4f2d46f98667aa4fcdc56db4 diff --git a/compiler/main/DriverPipeline.hs b/compiler/main/DriverPipeline.hs index d66f147..16a1725 100644 --- a/compiler/main/DriverPipeline.hs +++ b/compiler/main/DriverPipeline.hs @@ -29,8 +29,7 @@ module DriverPipeline ( import Packages import HeaderInfo import DriverPhases -import SysTools ( newTempName, addFilesToClean, copy ) -import qualified SysTools +import SysTools import HscMain import Finder import HscTypes @@ -50,17 +49,17 @@ import ParserCoreUtils ( getCoreModuleName ) import SrcLoc ( unLoc ) import SrcLoc ( Located(..) ) -import EXCEPTION -import DATA_IOREF ( readIORef, writeIORef, IORef ) -import GLAEXTS ( Int(..) ) - -import Directory -import System -import IO -import Monad +import Control.Exception as Exception +import Data.IORef ( readIORef, writeIORef, IORef ) +import GHC.Exts ( Int(..) ) +import System.Directory +import System.IO +import SYSTEM_IO_ERROR as IO +import Control.Monad import Data.List ( isSuffixOf ) -import Maybe - +import Data.Maybe +import System.Exit +import System.Environment -- --------------------------------------------------------------------------- -- Pre-process @@ -74,7 +73,8 @@ import Maybe preprocess :: DynFlags -> (FilePath, Maybe Phase) -> IO (DynFlags, FilePath) preprocess dflags (filename, mb_phase) = ASSERT2(isJust mb_phase || isHaskellSrcFilename filename, text filename) - runPipeline anyHsc dflags (filename, mb_phase) Temporary Nothing{-no ModLocation-} + runPipeline anyHsc dflags (filename, mb_phase) + Nothing Temporary Nothing{-no ModLocation-} -- --------------------------------------------------------------------------- -- Compile @@ -144,8 +144,8 @@ compile hsc_env mod_summary maybe_old_linkable old_iface mod_index nmods = do extCoreName = basename ++ ".hcr" } -- -no-recomp should also work with --make - let do_recomp = dopt Opt_RecompChecking dflags - source_unchanged = isJust maybe_old_linkable && do_recomp + let force_recomp = dopt Opt_ForceRecomp dflags + source_unchanged = isJust maybe_old_linkable && not force_recomp hsc_env' = hsc_env { hsc_dflags = dflags' } object_filename = ml_obj_file location @@ -168,7 +168,9 @@ compile hsc_env mod_summary maybe_old_linkable old_iface mod_index nmods = do -> return ([], ms_hs_date mod_summary) -- We're in --make mode: finish the compilation pipeline. _other - -> do runPipeline StopLn dflags (output_fn,Nothing) Persistent + -> do runPipeline StopLn dflags (output_fn,Nothing) + (Just basename) + Persistent (Just location) -- The object filename comes from the ModLocation o_time <- getModificationTime object_filename @@ -237,7 +239,7 @@ compileStub dflags mod location = do -- compile the _stub.c file w/ gcc let (stub_c,_) = mkStubPaths dflags (moduleName mod) location - runPipeline StopLn dflags (stub_c,Nothing) + runPipeline StopLn dflags (stub_c,Nothing) Nothing (SpecificFile stub_o) Nothing{-no ModLocation-} return stub_o @@ -246,7 +248,7 @@ compileStub dflags mod location = do -- --------------------------------------------------------------------------- -- Link -link :: GhcMode -- interactive or batch +link :: GhcLink -- interactive or batch -> DynFlags -- dynamic flags -> Bool -- attempt linking in batch mode? -> HomePackageTable -- what to link @@ -260,15 +262,15 @@ link :: GhcMode -- interactive or batch -- will succeed. #ifdef GHCI -link Interactive dflags batch_attempt_linking hpt +link LinkInMemory dflags batch_attempt_linking hpt = do -- Not Linking...(demand linker will do the job) return Succeeded #endif -link JustTypecheck dflags batch_attempt_linking hpt +link NoLink dflags batch_attempt_linking hpt = return Succeeded -link BatchCompile dflags batch_attempt_linking hpt +link LinkBinary dflags batch_attempt_linking hpt | batch_attempt_linking = do let @@ -302,7 +304,7 @@ link BatchCompile dflags batch_attempt_linking hpt | Right t <- e_exe_time = any (t <) (map linkableTime linkables) - if dopt Opt_RecompChecking dflags && not linking_needed + if not (dopt Opt_ForceRecomp dflags) && not linking_needed then do debugTraceMsg dflags 2 (text exe_file <+> ptext SLIT("is up to date, linking not required.")) return Succeeded else do @@ -313,7 +315,7 @@ link BatchCompile dflags batch_attempt_linking hpt -- Don't showPass in Batch mode; doLink will do that for us. let link = case ghcLink dflags of MkDLL -> doMkDLL - StaticLink -> staticLink + LinkBinary -> staticLink link dflags obj_files pkg_deps debugTraceMsg dflags 3 (text "link: done") @@ -360,7 +362,8 @@ compileFile dflags stop_phase (src, mb_phase) = do other -> stop_phase (_, out_file) <- runPipeline stop_phase' dflags - (src, mb_phase) output Nothing{-no ModLocation-} + (src, mb_phase) Nothing output + Nothing{-no ModLocation-} return out_file @@ -372,7 +375,7 @@ doLink dflags stop_phase o_files | otherwise = case ghcLink dflags of NoLink -> return () - StaticLink -> staticLink dflags o_files link_pkgs + LinkBinary -> staticLink dflags o_files link_pkgs MkDLL -> doMkDLL dflags o_files link_pkgs where -- Always link in the haskell98 package for static linking. Other @@ -406,18 +409,19 @@ runPipeline :: Phase -- When to stop -> DynFlags -- Dynamic flags -> (FilePath,Maybe Phase) -- Input filename (and maybe -x suffix) + -> Maybe FilePath -- original basename (if different from ^^^) -> PipelineOutput -- Output filename -> Maybe ModLocation -- A ModLocation, if this is a Haskell module -> IO (DynFlags, FilePath) -- (final flags, output filename) -runPipeline stop_phase dflags (input_fn, mb_phase) output maybe_loc +runPipeline stop_phase dflags (input_fn, mb_phase) mb_basename output maybe_loc = do - let (basename, suffix) = splitFilename input_fn + let (input_basename, suffix) = splitFilename input_fn + basename | Just b <- mb_basename = b + | otherwise = input_basename -- If we were given a -x flag, then use that phase to start from - start_phase - | Just x_phase <- mb_phase = x_phase - | otherwise = startPhase suffix + start_phase = fromMaybe (startPhase suffix) mb_phase -- We want to catch cases of "you can't get there from here" before -- we start the pipeline, because otherwise it will just run off the @@ -443,17 +447,19 @@ runPipeline stop_phase dflags (input_fn, mb_phase) output maybe_loc -- Sometimes, a compilation phase doesn't actually generate any output -- (eg. the CPP phase when -fcpp is not turned on). If we end on this -- stage, but we wanted to keep the output, then we have to explicitly - -- copy the file. + -- copy the file, remembering to prepend a {-# LINE #-} pragma so that + -- further compilation stages can tell what the original filename was. case output of Temporary -> return (dflags', output_fn) _other -> do final_fn <- get_output_fn dflags' stop_phase maybe_loc - when (final_fn /= output_fn) $ - copy dflags ("Copying `" ++ output_fn ++ "' to `" ++ final_fn - ++ "'") output_fn final_fn + when (final_fn /= output_fn) $ do + let msg = ("Copying `" ++ output_fn ++"' to `" ++ final_fn ++ "'") + line_prag = Just ("{-# LINE 1 \"" ++ input_fn ++ "\" #-}\n") + copyWithHeader dflags msg line_prag output_fn final_fn return (dflags', final_fn) - + pipeLoop :: DynFlags -> Phase -> Phase @@ -688,9 +694,9 @@ runPhase (Hsc src_flavour) stop dflags0 basename suff input_fn get_output_fn _ma -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless. src_timestamp <- getModificationTime (basename `joinFileExt` suff) - let do_recomp = dopt Opt_RecompChecking dflags + let force_recomp = dopt Opt_ForceRecomp dflags source_unchanged <- - if not do_recomp || not (isStopLn stop) + if force_recomp || not (isStopLn stop) -- Set source_unchanged to False unconditionally if -- (a) recompilation checker is off, or -- (b) we aren't going all the way to .o file (e.g. ghc -S) @@ -789,7 +795,7 @@ runPhase Cmm stop dflags basename suff input_fn get_output_fn maybe_loc -- way too many hacks, and I can't say I've ever used it anyway. runPhase cc_phase stop dflags basename suff input_fn get_output_fn maybe_loc - | cc_phase `eqPhase` Cc || cc_phase `eqPhase` HCc + | cc_phase `eqPhase` Cc || cc_phase `eqPhase` Ccpp || cc_phase `eqPhase` HCc = do let cc_opts = getOpts dflags opt_c hcc = cc_phase `eqPhase` HCc @@ -851,7 +857,8 @@ runPhase cc_phase stop dflags basename suff input_fn get_output_fn maybe_loc -- compiling .hc files, by adding the -x c option. -- Also useful for plain .c files, just in case GHC saw a -- -x c option. - [ SysTools.Option "-x", SysTools.Option "c"] ++ + [ SysTools.Option "-x", if cc_phase `eqPhase` Ccpp + then SysTools.Option "c++" else SysTools.Option "c"] ++ [ SysTools.FileOption "" input_fn , SysTools.Option "-o" , SysTools.FileOption "" output_fn @@ -880,6 +887,10 @@ runPhase cc_phase stop dflags basename suff input_fn get_output_fn maybe_loc ++ split_opt ++ include_paths ++ pkg_extra_cc_opts +#ifdef HAVE_GCC_HAS_WRAPV + -- We need consistent integer overflow (trac #952) + ++ ["-fwrapv"] +#endif )) return (next_phase, dflags, maybe_loc, output_fn) @@ -1053,9 +1064,9 @@ runPhase_MoveBinary dflags input_fn pvm_executable_base = "=" ++ input_fn pvm_executable = pvm_root ++ "/bin/" ++ pvm_arch ++ "/" ++ pvm_executable_base -- nuke old binary; maybe use configur'ed names for cp and rm? - system ("rm -f " ++ pvm_executable) + Panic.try (removeFile pvm_executable) -- move the newly created binary into PVM land - system ("cp -p " ++ input_fn ++ " " ++ pvm_executable) + copy dflags "copying PVM executable" input_fn pvm_executable -- generate a wrapper script for running a parallel prg under PVM writeFile input_fn (mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan) return True @@ -1093,18 +1104,18 @@ mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $ "", "args: while ($a = shift(@ARGV)) {", " if ( $a eq '+RTS' ) {", - " $in_RTS_args = 1;", + " $in_RTS_args = 1;", " } elsif ( $a eq '-RTS' ) {", - " $in_RTS_args = 0;", + " $in_RTS_args = 0;", " }", " if ( $a eq '-d' && $in_RTS_args ) {", - " $debug = '-';", + " $debug = '-';", " } elsif ( $a =~ /^-qN(\\d+)/ && $in_RTS_args ) {", - " $nprocessors = $1;", + " $nprocessors = $1;", " } elsif ( $a =~ /^-qp(\\d+)/ && $in_RTS_args ) {", - " $nprocessors = $1;", + " $nprocessors = $1;", " } else {", - " push(@nonPVM_args, $a);", + " push(@nonPVM_args, $a);", " }", "}", "", @@ -1132,7 +1143,7 @@ checkProcessArgsResult flags filename getHCFilePackages :: FilePath -> IO [PackageId] getHCFilePackages filename = - EXCEPTION.bracket (openFile filename ReadMode) hClose $ \h -> do + Exception.bracket (openFile filename ReadMode) hClose $ \h -> do l <- hGetLine h case l of '/':'*':' ':'G':'H':'C':'_':'P':'A':'C':'K':'A':'G':'E':'S':rest ->