X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FDriverPipeline.hs;h=cec8928496806795df15a595704e850a6566125a;hb=392095c950c3e242e88bf56bb401869a2f291abf;hp=7dd690aee36988783b2b59efe28941fffc8eb5b1;hpb=76293b141bba4c15a6fd619dd980502e98614790;p=ghc-hetmet.git diff --git a/ghc/compiler/main/DriverPipeline.hs b/ghc/compiler/main/DriverPipeline.hs index 7dd690a..cec8928 100644 --- a/ghc/compiler/main/DriverPipeline.hs +++ b/ghc/compiler/main/DriverPipeline.hs @@ -10,14 +10,14 @@ module DriverPipeline ( - -- interfaces for the batch-mode driver - genPipeline, runPipeline, pipeLoop, + -- Interfaces for the batch-mode driver + genPipeline, runPipeline, pipeLoop, staticLink, - -- interfaces for the compilation manager (interpreted/batch-mode) - preprocess, compile, CompResult(..), + -- Interfaces for the compilation manager (interpreted/batch-mode) + preprocess, + compile, CompResult(..), + link, - -- batch-mode linking interface - doLink, -- DLL building doMkDLL ) where @@ -25,7 +25,6 @@ module DriverPipeline ( #include "HsVersions.h" import Packages -import CmTypes import GetImports import DriverState import DriverUtil @@ -44,24 +43,271 @@ import CmdLineOpts import Config import Panic import Util +import BasicTypes ( SuccessFlag(..) ) +import Maybes ( expectJust ) + +import ParserCoreUtils ( getCoreModuleName ) + +import EXCEPTION +import DATA_IOREF ( readIORef, writeIORef ) #ifdef GHCI import Time ( getClockTime ) #endif import Directory import System -import IOExts -import Exception - import IO import Monad import Maybe -import PackedString ------------------------------------------------------------------------------ --- genPipeline +-- --------------------------------------------------------------------------- +-- Pre-process + +-- Just preprocess a file, put the result in a temp. file (used by the +-- compilation manager during the summary phase). + +preprocess :: FilePath -> IO FilePath +preprocess filename = + ASSERT(haskellish_src_file filename) + do restoreDynFlags -- Restore to state of last save + let fInfo = (filename, getFileSuffix filename) + pipeline <- genPipeline (StopBefore Hsc) ("preprocess") False + defaultHscLang fInfo + (fn,_) <- runPipeline pipeline fInfo + False{-no linking-} False{-no -o flag-} + return fn + +-- --------------------------------------------------------------------------- +-- Compile + +-- Compile a single module, under the control of the compilation manager. -- +-- This is the interface between the compilation manager and the +-- compiler proper (hsc), where we deal with tedious details like +-- reading the OPTIONS pragma from the source file, and passing the +-- output of hsc through the C compiler. + +-- The driver sits between 'compile' and 'hscMain', translating calls +-- to the former into calls to the latter, and results from the latter +-- into results from the former. It does things like preprocessing +-- the .hs file if necessary, and compiling up the .stub_c files to +-- generate Linkables. + +-- NB. No old interface can also mean that the source has changed. + +compile :: GhciMode -- distinguish batch from interactive + -> Module + -> ModLocation + -> Bool -- True <=> source unchanged + -> Bool -- True <=> have object + -> Maybe ModIface -- old interface, if available + -> HomePackageTable -- For home-module stuff + -> PersistentCompilerState -- persistent compiler state + -> IO CompResult + +data CompResult + = CompOK PersistentCompilerState -- Updated PCS + ModDetails -- New details + ModIface -- New iface + (Maybe Linkable) -- New code; Nothing => compilation was not reqd + -- (old code is still valid) + + | CompErrs PersistentCompilerState -- Updated PCS + + +compile ghci_mode this_mod location + source_unchanged have_object + old_iface hpt pcs = do + + dyn_flags <- restoreDynFlags -- Restore to the state of the last save + + showPass dyn_flags + (showSDoc (text "Compiling" <+> ppr this_mod)) + + let verb = verbosity dyn_flags + let input_fn = expectJust "compile:hs" (ml_hs_file location) + let input_fnpp = expectJust "compile:hspp" (ml_hspp_file location) + let mod_name = moduleName this_mod + + when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp)) + + opts <- getOptionsFromSource input_fnpp + processArgs dynamic_flags opts [] + dyn_flags <- getDynFlags + + let hsc_lang = hscLang dyn_flags + (basename, _) = splitFilename input_fn + + keep_hc <- readIORef v_Keep_hc_files +#ifdef ILX + keep_il <- readIORef v_Keep_il_files +#endif + keep_s <- readIORef v_Keep_s_files + + output_fn <- + case hsc_lang of + HscAsm | keep_s -> return (basename ++ '.':phaseInputExt As) + | otherwise -> newTempName (phaseInputExt As) + HscC | keep_hc -> return (basename ++ '.':phaseInputExt HCc) + | otherwise -> newTempName (phaseInputExt HCc) + HscJava -> newTempName "java" -- ToDo +#ifdef ILX + HscILX | keep_il -> return (basename ++ '.':phaseInputExt Ilasm) + | otherwise -> newTempName (phaseInputExt Ilx2Il) +#endif + HscInterpreted -> return (error "no output file") + HscNothing -> return (error "no output file") + + let dyn_flags' = dyn_flags { hscOutName = output_fn, + hscStubCOutName = basename ++ "_stub.c", + hscStubHOutName = basename ++ "_stub.h", + extCoreName = basename ++ ".hcr" } + + -- -no-recomp should also work with --make + do_recomp <- readIORef v_Recomp + let source_unchanged' = source_unchanged && do_recomp + hsc_env = HscEnv { hsc_mode = ghci_mode, + hsc_dflags = dyn_flags', + hsc_HPT = hpt } + + -- run the compiler + hsc_result <- hscMain hsc_env pcs this_mod location + source_unchanged' have_object old_iface + + case hsc_result of + HscFail pcs -> return (CompErrs pcs) + + HscNoRecomp pcs details iface -> return (CompOK pcs details iface Nothing) + + HscRecomp pcs details iface + stub_h_exists stub_c_exists maybe_interpreted_code -> do + let + maybe_stub_o <- compileStub dyn_flags' stub_c_exists + let stub_unlinked = case maybe_stub_o of + Nothing -> [] + Just stub_o -> [ DotO stub_o ] + + (hs_unlinked, unlinked_time) <- + case hsc_lang of + + -- in interpreted mode, just return the compiled code + -- as our "unlinked" object. + HscInterpreted -> + case maybe_interpreted_code of +#ifdef GHCI + Just comp_bc -> do tm <- getClockTime + return ([BCOs comp_bc], tm) +#endif + Nothing -> panic "compile: no interpreted code" + + -- we're in batch mode: finish the compilation pipeline. + _other -> do pipe <- genPipeline (StopBefore Ln) "" True + hsc_lang (output_fn, getFileSuffix output_fn) + -- runPipeline takes input_fn so it can split off + -- the base name and use it as the base of + -- the output object file. + let (basename, suffix) = splitFilename input_fn + (o_file,_) <- + pipeLoop pipe (output_fn, getFileSuffix output_fn) + False False + basename suffix + o_time <- getModificationTime o_file + return ([DotO o_file], o_time) + + let linkable = LM unlinked_time mod_name + (hs_unlinked ++ stub_unlinked) + + return (CompOK pcs details iface (Just linkable)) + +----------------------------------------------------------------------------- +-- stub .h and .c files (for foreign export support) + +compileStub dflags stub_c_exists + | not stub_c_exists = return Nothing + | stub_c_exists = do + -- compile the _stub.c file w/ gcc + let stub_c = hscStubCOutName dflags + pipeline <- genPipeline (StopBefore Ln) "" True defaultHscLang (stub_c,"c") + (stub_o,_) <- runPipeline pipeline (stub_c,"c") False{-no linking-} + False{-no -o option-} + return (Just stub_o) + + +-- --------------------------------------------------------------------------- +-- Link + +link :: GhciMode -- interactive or batch + -> DynFlags -- dynamic flags + -> Bool -- attempt linking in batch mode? + -> HomePackageTable -- what to link + -> IO SuccessFlag + +-- For the moment, in the batch linker, we don't bother to tell doLink +-- which packages to link -- it just tries all that are available. +-- batch_attempt_linking should only be *looked at* in batch mode. It +-- should only be True if the upsweep was successful and someone +-- exports main, i.e., we have good reason to believe that linking +-- will succeed. + +#ifdef GHCI +link Interactive dflags batch_attempt_linking hpt + = do -- Not Linking...(demand linker will do the job) + return Succeeded +#endif + +link Batch dflags batch_attempt_linking hpt + | batch_attempt_linking + = do + let + home_mod_infos = moduleEnvElts hpt + + -- the packages we depend on + pkg_deps = concatMap (dep_pkgs . mi_deps . hm_iface) home_mod_infos + + -- the linkables to link + linkables = map hm_linkable home_mod_infos + + when (verb >= 3) $ do + hPutStrLn stderr "link: linkables are ..." + hPutStrLn stderr (showSDoc (vcat (map ppr linkables))) + + -- check for the -no-link flag + omit_linking <- readIORef v_NoLink + if omit_linking + then do when (verb >= 3) $ + hPutStrLn stderr "link(batch): linking omitted (-no-link flag given)." + return Succeeded + else do + + when (verb >= 1) $ + hPutStrLn stderr "Linking ..." + + let getOfiles (LM _ _ us) = map nameOfObject (filter isObject us) + obj_files = concatMap getOfiles linkables + + -- Don't showPass in Batch mode; doLink will do that for us. + staticLink obj_files pkg_deps + + when (verb >= 3) (hPutStrLn stderr "link: done") + + -- staticLink only returns if it succeeds + return Succeeded + + | otherwise + = do when (verb >= 3) $ do + hPutStrLn stderr "link(batch): upsweep (partially) failed OR" + hPutStrLn stderr " Main.main not exported; not linking." + return Succeeded + where + verb = verbosity dflags + + + + +-- -------------------------------------------------------------------------- +-- genPipeline: Pipeline construction + -- Herein is all the magic about which phases to run in which order, whether -- the intermediate files should be in TMPDIR or in the current directory, -- what the suffix of the intermediate files should be, etc. @@ -152,11 +398,6 @@ genPipeline todo stop_flag persistent_output lang (filename,suffix) | split -> not_valid | otherwise -> [ Hsc, HCc, As ] - HscCore | split && mangle -> [ Hsc, HCc, Mangle, SplitMangle, SplitAs ] - | mangle -> [ Hsc, HCc, Mangle, As ] - | split -> not_valid - | otherwise -> [ Hsc, HCc, As ] - HscAsm | split -> [ Hsc, SplitMangle, SplitAs ] | otherwise -> [ Hsc, As ] @@ -203,9 +444,9 @@ genPipeline todo stop_flag persistent_output lang (filename,suffix) ++ filename ++ "'" ++ show pipeline ++ show stop_phase))) let -- .o and .hc suffixes can be overriden by command-line options: - myPhaseInputExt Ln | Just s <- osuf = s myPhaseInputExt HCc | Just s <- hcsuf = s - myPhaseInputExt other = phaseInputExt other + myPhaseInputExt Ln = osuf + myPhaseInputExt other = phaseInputExt other annotatePipeline :: [Phase] -- raw pipeline @@ -368,7 +609,8 @@ run_phase Cpp basename suff input_fn output_fn hs_src_cpp_opts <- readIORef v_Hs_source_cpp_opts cmdline_include_paths <- readIORef v_Include_paths - pkg_include_dirs <- getPackageIncludePath + + pkg_include_dirs <- getPackageIncludePath [] let include_paths = foldr (\ x xs -> "-I" : x : xs) [] (cmdline_include_paths ++ pkg_include_dirs) @@ -398,12 +640,9 @@ run_phase Cpp basename suff input_fn output_fn ------------------------------------------------------------------------------- -- HsPp phase -run_phase HsPp basename suff input_fn output_fn - = do src_opts <- getOptionsFromSource input_fn - unhandled_flags <- processArgs dynamic_flags src_opts [] - checkProcessArgsResult unhandled_flags basename suff - let orig_fn = basename ++ '.':suff +run_phase HsPp basename suff input_fn output_fn + = do let orig_fn = basename ++ '.':suff do_pp <- dynFlag ppFlag if not do_pp then -- no need to preprocess, just pass input file along @@ -432,10 +671,7 @@ run_phase MkDependHS basename suff input_fn output_fn deps_normals <- mapM (findDependency False orig_fn) import_normals let deps = deps_sources ++ deps_normals - osuf_opt <- readIORef v_Object_suf - let osuf = case osuf_opt of - Nothing -> phaseInputExt Ln - Just s -> s + osuf <- readIORef v_Object_suf extra_suffixes <- readIORef v_Dep_suffixes let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes @@ -494,31 +730,24 @@ run_phase Hsc basename suff input_fn output_fn -- we add the current directory (i.e. the directory in which -- the .hs files resides) to the import path, since this is -- what gcc does, and it's probably what you want. - let current_dir = getdir basename + let current_dir = directoryOf basename paths <- readIORef v_Include_paths writeIORef v_Include_paths (current_dir : paths) - -- figure out which header files to #include in a generated .hc file - c_includes <- getPackageCIncludes - cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options - - let cc_injects = unlines (map mk_include - (c_includes ++ reverse cmdline_includes)) - mk_include h_file = - case h_file of - '"':_{-"-} -> "#include "++h_file - '<':_ -> "#include "++h_file - _ -> "#include \""++h_file++"\"" - - writeIORef v_HCHeader cc_injects - -- gather the imports and module name - (srcimps,imps,mod_name) <- getImportsFromFile input_fn - - -- build a ModuleLocation to pass to hscMain. - (mod, location') - <- mkHomeModuleLocn mod_name basename (basename ++ '.':suff) + (srcimps,imps,mod_name) <- + if extcoreish_suffix suff + then do + -- no explicit imports in ExtCore input. + m <- getCoreModuleName input_fn + return ([], [], mkModuleName m) + else + getImportsFromFile input_fn + + -- build a ModLocation to pass to hscMain. + let (path,file) = splitFilenameDir basename + (mod, location') <- mkHomeModLocation mod_name True path file suff -- take -ohi into account if present ohi <- readIORef v_Output_hi @@ -542,7 +771,7 @@ run_phase Hsc basename suff input_fn output_fn -- THIS COMPILATION, then use that to determine if the -- source is unchanged. | Just x <- expl_o_file, todo == StopBefore Ln = x - | otherwise = unJust "source_unchanged" (ml_obj_file location) + | otherwise = ml_obj_file location source_unchanged <- if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln )) @@ -563,18 +792,18 @@ run_phase Hsc basename suff input_fn output_fn hscStubCOutName = basename ++ "_stub.c", hscStubHOutName = basename ++ "_stub.h", extCoreName = basename ++ ".hcr" } + hsc_env = HscEnv { hsc_mode = OneShot, + hsc_dflags = dyn_flags', + hsc_HPT = emptyHomePackageTable } + -- run the compiler! pcs <- initPersistentCompilerState - result <- hscMain OneShot - dyn_flags' mod + result <- hscMain hsc_env pcs mod location{ ml_hspp_file=Just input_fn } source_unchanged False Nothing -- no iface - emptyModuleEnv -- HomeSymbolTable - emptyModuleEnv -- HomeIfaceTable - pcs case result of { @@ -609,10 +838,13 @@ run_phase cc_phase basename suff input_fn output_fn let hcc = cc_phase == HCc - -- add package include paths even if we're just compiling - -- .c files; this is the Value Add(TM) that using - -- ghc instead of gcc gives you :) - pkg_include_dirs <- getPackageIncludePath + -- HC files have the dependent packages stamped into them + pkgs <- if hcc then getHCFilePackages input_fn else return [] + + -- add package include paths even if we're just compiling .c + -- files; this is the Value Add(TM) that using ghc instead of + -- gcc gives you :) + pkg_include_dirs <- getPackageIncludePath pkgs let include_paths = foldr (\ x xs -> "-I" : x : xs) [] (cmdline_include_paths ++ pkg_include_dirs) @@ -625,7 +857,7 @@ run_phase cc_phase basename suff input_fn output_fn let opt_flag | o2 = "-O2" | otherwise = "-O" - pkg_extra_cc_opts <- getPackageExtraCcOpts + pkg_extra_cc_opts <- getPackageExtraCcOpts pkgs split_objs <- readIORef v_Split_object_files let split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ] @@ -731,8 +963,9 @@ run_phase SplitAs basename _suff _input_fn output_fn let assemble_file n = do let input_s = split_s_prefix ++ "__" ++ show n ++ ".s" - let output_o = newdir real_odir + let output_o = replaceFilenameDirectory (basename ++ "__" ++ show n ++ ".o") + real_odir real_o <- osuf_ify output_o SysTools.runAs (map SysTools.Option as_opts ++ [ SysTools.Option "-c" @@ -780,7 +1013,7 @@ run_phase Ilasm _basename _suff input_fn output_fn -- wrapper script calling the binary. Currently, we need this only in -- a parallel way (i.e. in GUM), because PVM expects the binary in a -- central directory. --- This is called from doLink below, after linking. I haven't made it +-- This is called from staticLink below, after linking. I haven't made it -- a separate phase to minimise interfering with other modules, and -- we don't need the generality of a phase (MoveBinary is always -- done after linking and makes only sense in a parallel setup) -- HWL @@ -862,51 +1095,86 @@ mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $ -- Complain about non-dynamic flags in OPTIONS pragmas checkProcessArgsResult flags basename suff - = do when (not (null flags)) (throwDyn (ProgramError ( - basename ++ "." ++ suff - ++ ": static flags are not allowed in {-# OPTIONS #-} pragmas:\n\t" - ++ unwords flags)) (ExitFailure 1)) + = do when (notNull flags) (throwDyn (ProgramError ( + showSDoc (hang (text basename <> text ('.':suff) <> char ':') + 4 (text "unknown flags in {-# OPTIONS #-} pragma:" <+> + hsep (map text flags))) + ))) + +----------------------------------------------------------------------------- +-- Look for the /* GHC_PACKAGES ... */ comment at the top of a .hc file + +getHCFilePackages :: FilePath -> IO [PackageName] +getHCFilePackages filename = + 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 -> + return (map mkPackageName (words rest)) + _other -> + return [] ----------------------------------------------------------------------------- --- Linking +-- Static linking, of .o files + +-- The list of packages passed to link is the list of packages on +-- which this program depends, as discovered by the compilation +-- manager. It is combined with the list of packages that the user +-- specifies on the command line with -package flags. +-- +-- In one-shot linking mode, we can't discover the package +-- dependencies (because we haven't actually done any compilation or +-- read any interface files), so the user must explicitly specify all +-- the packages. -doLink :: [String] -> IO () -doLink o_files = do +staticLink :: [FilePath] -> [PackageName] -> IO () +staticLink o_files dep_packages = do verb <- getVerbFlag static <- readIORef v_Static no_hs_main <- readIORef v_NoHsMain + -- get the full list of packages to link with, by combining the + -- explicit packages with the auto packages and all of their + -- dependencies, and eliminating duplicates. + o_file <- readIORef v_Output_file let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; } - pkg_lib_paths <- getPackageLibraryPath + pkg_lib_paths <- getPackageLibraryPath dep_packages let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths lib_paths <- readIORef v_Library_paths let lib_path_opts = map ("-L"++) lib_paths - pkg_libs <- getPackageLibraries - let imp = if static then "" else "_imp" - pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs + pkg_link_opts <- getPackageLinkOpts dep_packages - libs <- readIORef v_Cmdline_libraries - let lib_opts = map ("-l"++) (reverse libs) - -- reverse because they're added in reverse order from the cmd line +#ifdef darwin_TARGET_OS + pkg_framework_paths <- getPackageFrameworkPath dep_packages + let pkg_framework_path_opts = map ("-F"++) pkg_framework_paths + + framework_paths <- readIORef v_Framework_paths + let framework_path_opts = map ("-F"++) framework_paths - pkg_extra_ld_opts <- getPackageExtraLdOpts + pkg_frameworks <- getPackageFrameworks dep_packages + let pkg_framework_opts = map ("-framework " ++) pkg_frameworks + + frameworks <- readIORef v_Cmdline_frameworks + let framework_opts = map ("-framework "++) (reverse frameworks) + -- reverse because they're added in reverse order from the cmd line +#endif -- probably _stub.o files extra_ld_inputs <- readIORef v_Ld_inputs - -- opts from -optl- + -- opts from -optl- (including -l options) extra_ld_opts <- getStaticOpts v_Opt_l - rts_pkg <- getPackageDetails ["rts"] - std_pkg <- getPackageDetails ["std"] + [rts_pkg, std_pkg] <- getPackageDetails [rtsPackage, basePackage] + let extra_os = if static || no_hs_main then [] - else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o", - head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ] + else [ head (library_dirs rts_pkg) ++ "/Main.dll_o", + head (library_dirs std_pkg) ++ "/PrelMain.dll_o" ] (md_c_flags, _) <- machdepCCOpts SysTools.runLink ( [ SysTools.Option verb @@ -919,11 +1187,17 @@ doLink o_files = do ++ extra_os ++ extra_ld_inputs ++ lib_path_opts - ++ lib_opts - ++ pkg_lib_path_opts - ++ pkg_lib_opts - ++ pkg_extra_ld_opts ++ extra_ld_opts +#ifdef darwin_TARGET_OS + ++ framework_path_opts + ++ framework_opts +#endif + ++ pkg_lib_path_opts + ++ pkg_link_opts +#ifdef darwin_TARGET_OS + ++ pkg_framework_path_opts + ++ pkg_framework_opts +#endif ++ if static && not no_hs_main then [ "-u", prefixUnderscore "Main_zdmain_closure"] else [])) @@ -947,21 +1221,13 @@ doMkDLL o_files = do o_file <- readIORef v_Output_file let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; } - pkg_lib_paths <- getPackageLibraryPath + pkg_lib_paths <- getPackageLibraryPath [] let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths lib_paths <- readIORef v_Library_paths let lib_path_opts = map ("-L"++) lib_paths - pkg_libs <- getPackageLibraries - let imp = if static then "" else "_imp" - pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs - - libs <- readIORef v_Cmdline_libraries - let lib_opts = map ("-l"++) (reverse libs) - -- reverse because they're added in reverse order from the cmd line - - pkg_extra_ld_opts <- getPackageExtraLdOpts + pkg_link_opts <- getPackageLinkOpts [] -- probably _stub.o files extra_ld_inputs <- readIORef v_Ld_inputs @@ -969,13 +1235,12 @@ doMkDLL o_files = do -- opts from -optdll- extra_ld_opts <- getStaticOpts v_Opt_dll - rts_pkg <- getPackageDetails ["rts"] - std_pkg <- getPackageDetails ["std"] + [rts_pkg, std_pkg] <- getPackageDetails [rtsPackage, basePackage] let extra_os = if static || no_hs_main then [] - else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o", - head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ] + else [ head (library_dirs rts_pkg) ++ "/Main.dll_o", + head (library_dirs std_pkg) ++ "/PrelMain.dll_o" ] (md_c_flags, _) <- machdepCCOpts SysTools.runMkDLL @@ -990,193 +1255,10 @@ doMkDLL o_files = do ++ [ "--target=i386-mingw32" ] ++ extra_ld_inputs ++ lib_path_opts - ++ lib_opts + ++ extra_ld_opts ++ pkg_lib_path_opts - ++ pkg_lib_opts - ++ pkg_extra_ld_opts + ++ pkg_link_opts ++ (if "--def" `elem` (concatMap words extra_ld_opts) then [ "" ] else [ "--export-all" ]) - ++ extra_ld_opts )) - ------------------------------------------------------------------------------ --- Just preprocess a file, put the result in a temp. file (used by the --- compilation manager during the summary phase). - -preprocess :: FilePath -> IO FilePath -preprocess filename = - ASSERT(haskellish_src_file filename) - do restoreDynFlags -- Restore to state of last save - let fInfo = (filename, getFileSuffix filename) - pipeline <- genPipeline (StopBefore Hsc) ("preprocess") False - defaultHscLang fInfo - (fn,_) <- runPipeline pipeline fInfo - False{-no linking-} False{-no -o flag-} - return fn - ------------------------------------------------------------------------------ --- Compile a single module, under the control of the compilation manager. --- --- This is the interface between the compilation manager and the --- compiler proper (hsc), where we deal with tedious details like --- reading the OPTIONS pragma from the source file, and passing the --- output of hsc through the C compiler. - --- The driver sits between 'compile' and 'hscMain', translating calls --- to the former into calls to the latter, and results from the latter --- into results from the former. It does things like preprocessing --- the .hs file if necessary, and compiling up the .stub_c files to --- generate Linkables. - --- NB. No old interface can also mean that the source has changed. - -compile :: GhciMode -- distinguish batch from interactive - -> ModSummary -- summary, including source - -> Bool -- True <=> source unchanged - -> Bool -- True <=> have object - -> Maybe ModIface -- old interface, if available - -> HomeSymbolTable -- for home module ModDetails - -> HomeIfaceTable -- for home module Ifaces - -> PersistentCompilerState -- persistent compiler state - -> IO CompResult - -data CompResult - = CompOK PersistentCompilerState -- updated PCS - ModDetails -- new details (HST additions) - ModIface -- new iface (HIT additions) - (Maybe Linkable) - -- new code; Nothing => compilation was not reqd - -- (old code is still valid) - - | CompErrs PersistentCompilerState -- updated PCS - - -compile ghci_mode summary source_unchanged have_object - old_iface hst hit pcs = do - dyn_flags <- restoreDynFlags -- Restore to the state of the last save - - - showPass dyn_flags - (showSDoc (text "Compiling" <+> ppr (modSummaryName summary))) - - let verb = verbosity dyn_flags - let location = ms_location summary - let input_fn = unJust "compile:hs" (ml_hs_file location) - let input_fnpp = unJust "compile:hspp" (ml_hspp_file location) - - when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp)) - - opts <- getOptionsFromSource input_fnpp - processArgs dynamic_flags opts [] - dyn_flags <- getDynFlags - - let hsc_lang = hscLang dyn_flags - (basename, _) = splitFilename input_fn - - keep_hc <- readIORef v_Keep_hc_files -#ifdef ILX - keep_il <- readIORef v_Keep_il_files -#endif - keep_s <- readIORef v_Keep_s_files - - output_fn <- - case hsc_lang of - HscAsm | keep_s -> return (basename ++ '.':phaseInputExt As) - | otherwise -> newTempName (phaseInputExt As) - HscC | keep_hc -> return (basename ++ '.':phaseInputExt HCc) - | otherwise -> newTempName (phaseInputExt HCc) - HscJava -> newTempName "java" -- ToDo -#ifdef ILX - HscILX | keep_il -> return (basename ++ '.':phaseInputExt Ilasm) - | otherwise -> newTempName (phaseInputExt Ilx2Il) -#endif - HscInterpreted -> return (error "no output file") - HscNothing -> return (error "no output file") - - let dyn_flags' = dyn_flags { hscOutName = output_fn, - hscStubCOutName = basename ++ "_stub.c", - hscStubHOutName = basename ++ "_stub.h", - extCoreName = basename ++ ".hcr" } - - -- figure out which header files to #include in a generated .hc file - c_includes <- getPackageCIncludes - cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options - - let cc_injects = unlines (map mk_include - (c_includes ++ reverse cmdline_includes)) - mk_include h_file = - case h_file of - '"':_{-"-} -> "#include "++h_file - '<':_ -> "#include "++h_file - _ -> "#include \""++h_file++"\"" - - writeIORef v_HCHeader cc_injects - - -- -no-recomp should also work with --make - do_recomp <- readIORef v_Recomp - let source_unchanged' = source_unchanged && do_recomp - - -- run the compiler - hsc_result <- hscMain ghci_mode dyn_flags' - (ms_mod summary) location - source_unchanged' have_object old_iface hst hit pcs - - case hsc_result of - HscFail pcs -> return (CompErrs pcs) - - HscNoRecomp pcs details iface -> return (CompOK pcs details iface Nothing) - - HscRecomp pcs details iface - stub_h_exists stub_c_exists maybe_interpreted_code -> do - let - maybe_stub_o <- compileStub dyn_flags' stub_c_exists - let stub_unlinked = case maybe_stub_o of - Nothing -> [] - Just stub_o -> [ DotO stub_o ] - - (hs_unlinked, unlinked_time) <- - case hsc_lang of - - -- in interpreted mode, just return the compiled code - -- as our "unlinked" object. - HscInterpreted -> - case maybe_interpreted_code of -#ifdef GHCI - Just (bcos,itbl_env) -> do tm <- getClockTime - return ([BCOs bcos itbl_env], tm) -#endif - Nothing -> panic "compile: no interpreted code" - - -- we're in batch mode: finish the compilation pipeline. - _other -> do pipe <- genPipeline (StopBefore Ln) "" True - hsc_lang (output_fn, getFileSuffix output_fn) - -- runPipeline takes input_fn so it can split off - -- the base name and use it as the base of - -- the output object file. - let (basename, suffix) = splitFilename input_fn - (o_file,_) <- - pipeLoop pipe (output_fn, getFileSuffix output_fn) - False False - basename suffix - o_time <- getModificationTime o_file - return ([DotO o_file], o_time) - - let linkable = LM unlinked_time (modSummaryName summary) - (hs_unlinked ++ stub_unlinked) - - return (CompOK pcs details iface (Just linkable)) - - ------------------------------------------------------------------------------ --- stub .h and .c files (for foreign export support) - -compileStub dflags stub_c_exists - | not stub_c_exists = return Nothing - | stub_c_exists = do - -- compile the _stub.c file w/ gcc - let stub_c = hscStubCOutName dflags - pipeline <- genPipeline (StopBefore Ln) "" True defaultHscLang (stub_c,"c") - (stub_o,_) <- runPipeline pipeline (stub_c,"c") False{-no linking-} - False{-no -o option-} - return (Just stub_o)