+++ /dev/null
------------------------------------------------------------------------------
---
--- GHC Driver
---
--- (c) The University of Glasgow 2005
---
------------------------------------------------------------------------------
-
-module DriverPipeline (
- -- Run a series of compilation steps in a pipeline, for a
- -- collection of source files.
- oneShot, compileFile,
-
- -- Interfaces for the batch-mode driver
- staticLink,
-
- -- Interfaces for the compilation manager (interpreted/batch-mode)
- preprocess,
- compile, CompResult(..),
- link,
-
- -- DLL building
- doMkDLL,
-
- ) where
-
-#include "HsVersions.h"
-
-import Packages
-import HeaderInfo
-import DriverPhases
-import SysTools ( newTempName, addFilesToClean, getSysMan, copy )
-import qualified SysTools
-import HscMain
-import Finder
-import HscTypes
-import Outputable
-import Module
-import ErrUtils
-import DynFlags
-import StaticFlags ( v_Ld_inputs, opt_Static, WayName(..) )
-import Config
-import Panic
-import Util
-import StringBuffer ( hGetStringBuffer )
-import BasicTypes ( SuccessFlag(..) )
-import Maybes ( expectJust )
-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 Data.List ( isSuffixOf )
-import Maybe
-
-
--- ---------------------------------------------------------------------------
--- Pre-process
-
--- Just preprocess a file, put the result in a temp. file (used by the
--- compilation manager during the summary phase).
---
--- We return the augmented DynFlags, because they contain the result
--- of slurping in the OPTIONS pragmas
-
-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-}
-
--- ---------------------------------------------------------------------------
--- 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.
-
--- NB. No old interface can also mean that the source has changed.
-
-compile :: HscEnv
- -> ModSummary
- -> Maybe Linkable -- Just linkable <=> source unchanged
- -> Maybe ModIface -- Old interface, if available
- -> Int -> Int
- -> IO CompResult
-
-data CompResult
- = CompOK ModDetails -- New details
- ModIface -- New iface
- (Maybe Linkable) -- a Maybe, for the same reasons as hm_linkable
-
- | CompErrs
-
-
-compile hsc_env mod_summary maybe_old_linkable old_iface mod_index nmods = do
-
- let dflags0 = ms_hspp_opts mod_summary
- this_mod = ms_mod mod_summary
- src_flavour = ms_hsc_src mod_summary
-
- have_object
- | Just l <- maybe_old_linkable, isObjectLinkable l = True
- | otherwise = False
-
- -- FIXME: We need to know whether or not we're recompiling the file. Move this to HscMain?
- --showPass dflags0 ("Compiling " ++ showModMsg have_object mod_summary)
-
- let location = ms_location mod_summary
- let input_fn = expectJust "compile:hs" (ml_hs_file location)
- let input_fnpp = ms_hspp_file mod_summary
-
- debugTraceMsg dflags0 2 (text "compile: input file" <+> text input_fnpp)
-
- let (basename, _) = splitFilename input_fn
-
- -- We add the directory in which the .hs files resides) to the import path.
- -- This is needed when we try to compile the .hc file later, if it
- -- imports a _stub.h file that we created here.
- let current_dir = directoryOf basename
- old_paths = includePaths dflags0
- dflags = dflags0 { includePaths = current_dir : old_paths }
-
- -- Figure out what lang we're generating
- let hsc_lang = hscMaybeAdjustTarget dflags StopLn src_flavour (hscTarget dflags)
- -- ... and what the next phase should be
- let next_phase = hscNextPhase dflags src_flavour hsc_lang
- -- ... and what file to generate the output into
- output_fn <- getOutputFilename dflags next_phase
- Temporary basename next_phase (Just location)
-
- let dflags' = dflags { hscTarget = hsc_lang,
- hscOutName = output_fn,
- 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
- hsc_env' = hsc_env { hsc_dflags = dflags' }
- object_filename = ml_obj_file location
-
- let getStubLinkable False = return []
- getStubLinkable True
- = do stub_o <- compileStub dflags' this_mod location
- return [ DotO stub_o ]
-
- handleBatch (HscNoRecomp, iface, details)
- = ASSERT (isJust maybe_old_linkable)
- return (CompOK details iface maybe_old_linkable)
- handleBatch (HscRecomp hasStub, iface, details)
- | isHsBoot src_flavour
- = return (CompOK details iface Nothing)
- | otherwise
- = do stub_unlinked <- getStubLinkable hasStub
- (hs_unlinked, unlinked_time) <-
- case hsc_lang of
- HscNothing
- -> return ([], ms_hs_date mod_summary)
- -- We're in --make mode: finish the compilation pipeline.
- _other
- -> do runPipeline StopLn dflags (output_fn,Nothing) Persistent
- (Just location)
- -- The object filename comes from the ModLocation
- o_time <- getModificationTime object_filename
- return ([DotO object_filename], o_time)
- let linkable = LM unlinked_time this_mod
- (hs_unlinked ++ stub_unlinked)
- return (CompOK details iface (Just linkable))
-
- handleInterpreted (InteractiveNoRecomp, iface, details)
- = ASSERT (isJust maybe_old_linkable)
- return (CompOK details iface maybe_old_linkable)
- handleInterpreted (InteractiveRecomp hasStub comp_bc, iface, details)
- = do stub_unlinked <- getStubLinkable hasStub
- let hs_unlinked = [BCOs comp_bc]
- unlinked_time = ms_hs_date mod_summary
- -- Why do we use the timestamp of the source file here,
- -- rather than the current time? This works better in
- -- the case where the local clock is out of sync
- -- with the filesystem's clock. It's just as accurate:
- -- if the source is modified, then the linkable will
- -- be out of date.
- let linkable = LM unlinked_time this_mod
- (hs_unlinked ++ stub_unlinked)
- return (CompOK details iface (Just linkable))
-
- let runCompiler compiler handle
- = do mbResult <- compiler hsc_env' mod_summary
- source_unchanged old_iface
- (Just (mod_index, nmods))
- case mbResult of
- Nothing -> return CompErrs
- Just result -> handle result
- -- run the compiler
- case hsc_lang of
- HscInterpreted | not (isHsBoot src_flavour) -- We can't compile boot files to
- -- bytecode so don't even try.
- -> runCompiler hscCompileInteractive handleInterpreted
- HscNothing
- -> runCompiler hscCompileNothing handleBatch
- _other
- -> runCompiler hscCompileBatch handleBatch
-
------------------------------------------------------------------------------
--- stub .h and .c files (for foreign export support)
-
--- The _stub.c file is derived from the haskell source file, possibly taking
--- into account the -stubdir option.
---
--- Consequently, we derive the _stub.o filename from the haskell object
--- filename.
---
--- This isn't necessarily the same as the object filename we
--- would get if we just compiled the _stub.c file using the pipeline.
--- For example:
---
--- ghc src/A.hs -odir obj
---
--- results in obj/A.o, and src/A_stub.c. If we compile src/A_stub.c with
--- -odir obj, we would get obj/src/A_stub.o, which is wrong; we want
--- obj/A_stub.o.
-
-compileStub :: DynFlags -> Module -> ModLocation -> IO FilePath
-compileStub dflags mod location = do
- let (o_base, o_ext) = splitFilename (ml_obj_file location)
- stub_o = o_base ++ "_stub" `joinFileExt` o_ext
-
- -- compile the _stub.c file w/ gcc
- let (stub_c,_) = mkStubPaths dflags mod location
- runPipeline StopLn dflags (stub_c,Nothing)
- (SpecificFile stub_o) Nothing{-no ModLocation-}
-
- return stub_o
-
-
--- ---------------------------------------------------------------------------
--- Link
-
-link :: GhcMode -- 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 JustTypecheck dflags batch_attempt_linking hpt
- = return Succeeded
-
-link BatchCompile 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 (expectJust "link".hm_linkable) home_mod_infos
-
- debugTraceMsg dflags 3 (text "link: linkables are ..." $$ vcat (map ppr linkables))
-
- -- check for the -no-link flag
- if isNoLink (ghcLink dflags)
- then do debugTraceMsg dflags 3 (text "link(batch): linking omitted (-c flag given).")
- return Succeeded
- else do
-
- let getOfiles (LM _ _ us) = map nameOfObject (filter isObject us)
- obj_files = concatMap getOfiles linkables
-
- exe_file = exeFileName dflags
-
- -- if the modification time on the executable is later than the
- -- modification times on all of the objects, then omit linking
- -- (unless the -no-recomp flag was given).
- e_exe_time <- IO.try $ getModificationTime exe_file
- let linking_needed
- | Left _ <- e_exe_time = True
- | Right t <- e_exe_time =
- any (t <) (map linkableTime linkables)
-
- if dopt Opt_RecompChecking dflags && not linking_needed
- then do debugTraceMsg dflags 1 (text exe_file <+> ptext SLIT("is up to date, linking not required."))
- return Succeeded
- else do
-
- debugTraceMsg dflags 1 (ptext SLIT("Linking") <+> text exe_file
- <+> text "...")
-
- -- Don't showPass in Batch mode; doLink will do that for us.
- let link = case ghcLink dflags of
- MkDLL -> doMkDLL
- StaticLink -> staticLink
- link dflags obj_files pkg_deps
-
- debugTraceMsg dflags 3 (text "link: done")
-
- -- staticLink only returns if it succeeds
- return Succeeded
-
- | otherwise
- = do debugTraceMsg dflags 3 (text "link(batch): upsweep (partially) failed OR" $$
- text " Main.main not exported; not linking.")
- return Succeeded
-
-
--- -----------------------------------------------------------------------------
--- Compile files in one-shot mode.
-
-oneShot :: DynFlags -> Phase -> [(String, Maybe Phase)] -> IO ()
-oneShot dflags stop_phase srcs = do
- o_files <- mapM (compileFile dflags stop_phase) srcs
- doLink dflags stop_phase o_files
-
-compileFile :: DynFlags -> Phase -> (FilePath, Maybe Phase) -> IO FilePath
-compileFile dflags stop_phase (src, mb_phase) = do
- exists <- doesFileExist src
- when (not exists) $
- throwDyn (CmdLineError ("does not exist: " ++ src))
-
- let
- split = dopt Opt_SplitObjs dflags
- mb_o_file = outputFile dflags
- ghc_link = ghcLink dflags -- Set by -c or -no-link
-
- -- When linking, the -o argument refers to the linker's output.
- -- otherwise, we use it as the name for the pipeline's output.
- output
- | StopLn <- stop_phase, not (isNoLink ghc_link) = Persistent
- -- -o foo applies to linker
- | Just o_file <- mb_o_file = SpecificFile o_file
- -- -o foo applies to the file we are compiling now
- | otherwise = Persistent
-
- stop_phase' = case stop_phase of
- As | split -> SplitAs
- other -> stop_phase
-
- (_, out_file) <- runPipeline stop_phase' dflags
- (src, mb_phase) output Nothing{-no ModLocation-}
- return out_file
-
-
-doLink :: DynFlags -> Phase -> [FilePath] -> IO ()
-doLink dflags stop_phase o_files
- | not (isStopLn stop_phase)
- = return () -- We stopped before the linking phase
-
- | otherwise
- = case ghcLink dflags of
- NoLink -> return ()
- StaticLink -> staticLink dflags o_files link_pkgs
- MkDLL -> doMkDLL dflags o_files link_pkgs
- where
- -- Always link in the haskell98 package for static linking. Other
- -- packages have to be specified via the -package flag.
- link_pkgs
- | ExtPackage h98_id <- haskell98PackageId (pkgState dflags) = [h98_id]
- | otherwise = []
-
-
--- ---------------------------------------------------------------------------
--- Run a compilation pipeline, consisting of multiple phases.
-
--- This is the interface to the compilation pipeline, which runs
--- a series of compilation steps on a single source file, specifying
--- at which stage to stop.
-
--- The DynFlags can be modified by phases in the pipeline (eg. by
--- GHC_OPTIONS pragmas), and the changes affect later phases in the
--- pipeline.
-
-data PipelineOutput
- = Temporary
- -- output should be to a temporary file: we're going to
- -- run more compilation steps on this output later
- | Persistent
- -- we want a persistent file, i.e. a file in the current directory
- -- derived from the input filename, but with the appropriate extension.
- -- eg. in "ghc -c Foo.hs" the output goes into ./Foo.o.
- | SpecificFile FilePath
- -- the output must go into the specified file.
-
-runPipeline
- :: Phase -- When to stop
- -> DynFlags -- Dynamic flags
- -> (FilePath,Maybe Phase) -- Input filename (and maybe -x suffix)
- -> 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
- = do
- let (basename, suffix) = splitFilename input_fn
-
- -- 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
-
- -- 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
- -- end.
- --
- -- There is a partial ordering on phases, where A < B iff A occurs
- -- before B in a normal compilation pipeline.
-
- when (not (start_phase `happensBefore` stop_phase)) $
- throwDyn (UsageError
- ("cannot compile this file to desired target: "
- ++ input_fn))
-
- -- this is a function which will be used to calculate output file names
- -- as we go along (we partially apply it to some of its inputs here)
- let get_output_fn = getOutputFilename dflags stop_phase output basename
-
- -- Execute the pipeline...
- (dflags', output_fn, maybe_loc) <-
- pipeLoop dflags start_phase stop_phase input_fn
- basename suffix get_output_fn 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.
- case output of
- Temporary ->
- return (dflags', output_fn)
- _other ->
- do final_fn <- get_output_fn stop_phase maybe_loc
- when (final_fn /= output_fn) $
- copy dflags ("Copying `" ++ output_fn ++ "' to `" ++ final_fn
- ++ "'") output_fn final_fn
- return (dflags', final_fn)
-
-
-
-pipeLoop :: DynFlags -> Phase -> Phase
- -> FilePath -> String -> Suffix
- -> (Phase -> Maybe ModLocation -> IO FilePath)
- -> Maybe ModLocation
- -> IO (DynFlags, FilePath, Maybe ModLocation)
-
-pipeLoop dflags phase stop_phase
- input_fn orig_basename orig_suff
- orig_get_output_fn maybe_loc
-
- | phase `eqPhase` stop_phase -- All done
- = return (dflags, input_fn, maybe_loc)
-
- | not (phase `happensBefore` stop_phase)
- -- Something has gone wrong. We'll try to cover all the cases when
- -- this could happen, so if we reach here it is a panic.
- -- eg. it might happen if the -C flag is used on a source file that
- -- has {-# OPTIONS -fasm #-}.
- = panic ("pipeLoop: at phase " ++ show phase ++
- " but I wanted to stop at phase " ++ show stop_phase)
-
- | otherwise
- = do { (next_phase, dflags', maybe_loc, output_fn)
- <- runPhase phase stop_phase dflags orig_basename
- orig_suff input_fn orig_get_output_fn maybe_loc
- ; pipeLoop dflags' next_phase stop_phase output_fn
- orig_basename orig_suff orig_get_output_fn maybe_loc }
-
-getOutputFilename
- :: DynFlags -> Phase -> PipelineOutput -> String
- -> Phase{-next phase-} -> Maybe ModLocation -> IO FilePath
-getOutputFilename dflags stop_phase output basename
- = func
- where
- hcsuf = hcSuf dflags
- odir = objectDir dflags
- osuf = objectSuf dflags
- keep_hc = dopt Opt_KeepHcFiles dflags
- keep_raw_s = dopt Opt_KeepRawSFiles dflags
- keep_s = dopt Opt_KeepSFiles dflags
-
- myPhaseInputExt HCc = hcsuf
- myPhaseInputExt StopLn = osuf
- myPhaseInputExt other = phaseInputExt other
-
- func next_phase maybe_location
- | is_last_phase, Persistent <- output = persistent_fn
- | is_last_phase, SpecificFile f <- output = return f
- | keep_this_output = persistent_fn
- | otherwise = newTempName dflags suffix
- where
- is_last_phase = next_phase `eqPhase` stop_phase
-
- -- sometimes, we keep output from intermediate stages
- keep_this_output =
- case next_phase of
- StopLn -> True
- Mangle | keep_raw_s -> True
- As | keep_s -> True
- HCc | keep_hc -> True
- _other -> False
-
- suffix = myPhaseInputExt next_phase
-
- -- persistent object files get put in odir
- persistent_fn
- | StopLn <- next_phase = return odir_persistent
- | otherwise = return persistent
-
- persistent = basename `joinFileExt` suffix
-
- odir_persistent
- | Just loc <- maybe_location = ml_obj_file loc
- | Just d <- odir = d `joinFileName` persistent
- | otherwise = persistent
-
-
--- -----------------------------------------------------------------------------
--- Each phase in the pipeline returns the next phase to execute, and the
--- name of the file in which the output was placed.
---
--- We must do things dynamically this way, because we often don't know
--- what the rest of the phases will be until part-way through the
--- compilation: for example, an {-# OPTIONS -fasm #-} at the beginning
--- of a source file can change the latter stages of the pipeline from
--- taking the via-C route to using the native code generator.
-
-runPhase :: Phase -- Do this phase first
- -> Phase -- Stop just before this phase
- -> DynFlags
- -> String -- basename of original input source
- -> String -- its extension
- -> FilePath -- name of file which contains the input to this phase.
- -> (Phase -> Maybe ModLocation -> IO FilePath)
- -- how to calculate the output filename
- -> Maybe ModLocation -- the ModLocation, if we have one
- -> IO (Phase, -- next phase
- DynFlags, -- new dynamic flags
- Maybe ModLocation, -- the ModLocation, if we have one
- FilePath) -- output filename
-
- -- Invariant: the output filename always contains the output
- -- Interesting case: Hsc when there is no recompilation to do
- -- Then the output filename is still a .o file
-
--------------------------------------------------------------------------------
--- Unlit phase
-
-runPhase (Unlit sf) _stop dflags _basename _suff input_fn get_output_fn maybe_loc
- = do let unlit_flags = getOpts dflags opt_L
- -- The -h option passes the file name for unlit to put in a #line directive
- output_fn <- get_output_fn (Cpp sf) maybe_loc
-
- SysTools.runUnlit dflags
- (map SysTools.Option unlit_flags ++
- [ SysTools.Option "-h"
- , SysTools.Option input_fn
- , SysTools.FileOption "" input_fn
- , SysTools.FileOption "" output_fn
- ])
-
- return (Cpp sf, dflags, maybe_loc, output_fn)
-
--------------------------------------------------------------------------------
--- Cpp phase : (a) gets OPTIONS out of file
--- (b) runs cpp if necessary
-
-runPhase (Cpp sf) _stop dflags0 basename suff input_fn get_output_fn maybe_loc
- = do src_opts <- getOptionsFromFile input_fn
- (dflags,unhandled_flags) <- parseDynamicFlags dflags0 (map unLoc src_opts)
- checkProcessArgsResult unhandled_flags (basename `joinFileExt` suff)
-
- if not (dopt Opt_Cpp dflags) then
- -- no need to preprocess CPP, just pass input file along
- -- to the next phase of the pipeline.
- return (HsPp sf, dflags, maybe_loc, input_fn)
- else do
- output_fn <- get_output_fn (HsPp sf) maybe_loc
- doCpp dflags True{-raw-} False{-no CC opts-} input_fn output_fn
- return (HsPp sf, dflags, maybe_loc, output_fn)
-
--------------------------------------------------------------------------------
--- HsPp phase
-
-runPhase (HsPp sf) _stop dflags basename suff input_fn get_output_fn maybe_loc
- = do if not (dopt Opt_Pp dflags) then
- -- no need to preprocess, just pass input file along
- -- to the next phase of the pipeline.
- return (Hsc sf, dflags, maybe_loc, input_fn)
- else do
- let hspp_opts = getOpts dflags opt_F
- let orig_fn = basename `joinFileExt` suff
- output_fn <- get_output_fn (Hsc sf) maybe_loc
- SysTools.runPp dflags
- ( [ SysTools.Option orig_fn
- , SysTools.Option input_fn
- , SysTools.FileOption "" output_fn
- ] ++
- map SysTools.Option hspp_opts
- )
- return (Hsc sf, dflags, maybe_loc, output_fn)
-
------------------------------------------------------------------------------
--- Hsc phase
-
--- Compilation of a single module, in "legacy" mode (_not_ under
--- the direction of the compilation manager).
-runPhase (Hsc src_flavour) stop dflags0 basename suff input_fn get_output_fn _maybe_loc
- = do -- normal Hsc mode, not mkdependHS
-
- -- 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 = directoryOf basename
-
- paths = includePaths dflags0
- dflags = dflags0 { includePaths = current_dir : paths }
-
- -- gather the imports and module name
- (hspp_buf,mod_name) <-
- case src_flavour of
- ExtCoreFile -> do { -- no explicit imports in ExtCore input.
- ; m <- getCoreModuleName input_fn
- ; return (Nothing, mkModule m) }
-
- other -> do { buf <- hGetStringBuffer input_fn
- ; (_,_,L _ mod_name) <- getImports dflags buf input_fn
- ; return (Just buf, mod_name) }
-
- -- Build a ModLocation to pass to hscMain.
- -- The source filename is rather irrelevant by now, but it's used
- -- by hscMain for messages. hscMain also needs
- -- the .hi and .o filenames, and this is as good a way
- -- as any to generate them, and better than most. (e.g. takes
- -- into accout the -osuf flags)
- location1 <- mkHomeModLocation2 dflags mod_name basename suff
-
- -- Boot-ify it if necessary
- let location2 | isHsBoot src_flavour = addBootSuffixLocn location1
- | otherwise = location1
-
-
- -- Take -ohi into account if present
- -- This can't be done in mkHomeModuleLocation because
- -- it only applies to the module being compiles
- let ohi = outputHi dflags
- location3 | Just fn <- ohi = location2{ ml_hi_file = fn }
- | otherwise = location2
-
- -- Take -o into account if present
- -- Very like -ohi, but we must *only* do this if we aren't linking
- -- (If we're linking then the -o applies to the linked thing, not to
- -- the object file for one module.)
- -- Note the nasty duplication with the same computation in compileFile above
- let expl_o_file = outputFile dflags
- location4 | Just ofile <- expl_o_file
- , isNoLink (ghcLink dflags)
- = location3 { ml_obj_file = ofile }
- | otherwise = location3
-
- -- Make the ModSummary to hand to hscMain
- src_timestamp <- getModificationTime (basename `joinFileExt` suff)
- let
- unused_field = panic "runPhase:ModSummary field"
- -- Some fields are not looked at by hscMain
- mod_summary = ModSummary { ms_mod = mod_name,
- ms_hsc_src = src_flavour,
- ms_hspp_file = input_fn,
- ms_hspp_opts = dflags,
- ms_hspp_buf = hspp_buf,
- ms_location = location4,
- ms_hs_date = src_timestamp,
- ms_obj_date = Nothing,
- ms_imps = unused_field,
- ms_srcimps = unused_field }
-
- o_file = ml_obj_file location4 -- The real object file
-
-
- -- Figure out if the source has changed, for recompilation avoidance.
- --
- -- Setting source_unchanged to True means that M.o seems
- -- to be up to date wrt M.hs; so no need to recompile unless imports have
- -- changed (which the compiler itself figures out).
- -- Setting source_unchanged to False tells the compiler that M.o is out of
- -- date wrt M.hs (or M.o doesn't exist) so we must recompile regardless.
- let do_recomp = dopt Opt_RecompChecking dflags
- source_unchanged <-
- if not do_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)
- then return False
- -- Otherwise look at file modification dates
- else do o_file_exists <- doesFileExist o_file
- if not o_file_exists
- then return False -- Need to recompile
- else do t2 <- getModificationTime o_file
- if t2 > src_timestamp
- then return True
- else return False
-
- -- get the DynFlags
- let hsc_lang = hscMaybeAdjustTarget dflags stop src_flavour (hscTarget dflags)
- let next_phase = hscNextPhase dflags src_flavour hsc_lang
- output_fn <- get_output_fn next_phase (Just location4)
-
- let dflags' = dflags { hscTarget = hsc_lang,
- hscOutName = output_fn,
- extCoreName = basename ++ ".hcr" }
-
- hsc_env <- newHscEnv dflags'
-
- -- Tell the finder cache about this module
- addHomeModuleToFinder hsc_env mod_name location4
-
- -- run the compiler!
- mbResult <- hscCompileOneShot hsc_env
- mod_summary source_unchanged
- Nothing -- No iface
- Nothing -- No "module i of n" progress info
-
- case mbResult of
- Nothing -> throwDyn (PhaseFailed "hsc" (ExitFailure 1))
- Just HscNoRecomp
- -> do SysTools.touch dflags' "Touching object file" o_file
- -- The .o file must have a later modification date
- -- than the source file (else we wouldn't be in HscNoRecomp)
- -- but we touch it anyway, to keep 'make' happy (we think).
- return (StopLn, dflags', Just location4, o_file)
- Just (HscRecomp hasStub)
- -> do when hasStub $
- do stub_o <- compileStub dflags' mod_name location4
- consIORef v_Ld_inputs stub_o
- -- In the case of hs-boot files, generate a dummy .o-boot
- -- stamp file for the benefit of Make
- when (isHsBoot src_flavour) $
- SysTools.touch dflags' "Touching object file" o_file
- return (next_phase, dflags', Just location4, output_fn)
-
------------------------------------------------------------------------------
--- Cmm phase
-
-runPhase CmmCpp stop dflags basename suff input_fn get_output_fn maybe_loc
- = do
- output_fn <- get_output_fn Cmm maybe_loc
- doCpp dflags False{-not raw-} True{-include CC opts-} input_fn output_fn
- return (Cmm, dflags, maybe_loc, output_fn)
-
-runPhase Cmm stop dflags basename suff input_fn get_output_fn maybe_loc
- = do
- let hsc_lang = hscMaybeAdjustTarget dflags stop HsSrcFile (hscTarget dflags)
- let next_phase = hscNextPhase dflags HsSrcFile hsc_lang
- output_fn <- get_output_fn next_phase maybe_loc
-
- let dflags' = dflags { hscTarget = hsc_lang,
- hscOutName = output_fn,
- extCoreName = basename ++ ".hcr" }
-
- ok <- hscCmmFile dflags' input_fn
-
- when (not ok) $ throwDyn (PhaseFailed "cmm" (ExitFailure 1))
-
- return (next_phase, dflags, maybe_loc, output_fn)
-
------------------------------------------------------------------------------
--- Cc phase
-
--- we don't support preprocessing .c files (with -E) now. Doing so introduces
--- 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
- = do let cc_opts = getOpts dflags opt_c
- hcc = cc_phase `eqPhase` HCc
-
- let cmdline_include_paths = includePaths dflags
-
- -- 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 dflags pkgs
- let include_paths = foldr (\ x xs -> "-I" : x : xs) []
- (cmdline_include_paths ++ pkg_include_dirs)
-
- let (md_c_flags, md_regd_c_flags) = machdepCCOpts dflags
- let pic_c_flags = picCCOpts dflags
-
- let verb = getVerbFlag dflags
-
- pkg_extra_cc_opts <- getPackageExtraCcOpts dflags pkgs
-
- let split_objs = dopt Opt_SplitObjs dflags
- split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
- | otherwise = [ ]
-
- let excessPrecision = dopt Opt_ExcessPrecision dflags
-
- let cc_opt | optLevel dflags >= 2 = "-O2"
- | otherwise = "-O"
-
- -- Decide next phase
-
- let mangle = dopt Opt_DoAsmMangling dflags
- next_phase
- | hcc && mangle = Mangle
- | otherwise = As
- output_fn <- get_output_fn next_phase maybe_loc
-
- let
- more_hcc_opts =
-#if i386_TARGET_ARCH
- -- on x86 the floating point regs have greater precision
- -- than a double, which leads to unpredictable results.
- -- By default, we turn this off with -ffloat-store unless
- -- the user specified -fexcess-precision.
- (if excessPrecision then [] else [ "-ffloat-store" ]) ++
-#endif
- -- gcc's -fstrict-aliasing allows two accesses to memory
- -- to be considered non-aliasing if they have different types.
- -- This interacts badly with the C code we generate, which is
- -- very weakly typed, being derived from C--.
- ["-fno-strict-aliasing"]
-
-
-
- SysTools.runCc dflags (
- -- force the C compiler to interpret this file as C when
- -- 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.FileOption "" input_fn
- , SysTools.Option "-o"
- , SysTools.FileOption "" output_fn
- ]
- ++ map SysTools.Option (
- md_c_flags
- ++ pic_c_flags
- ++ (if hcc && mangle
- then md_regd_c_flags
- else [])
- ++ (if hcc
- then more_hcc_opts
- else [])
- ++ [ verb, "-S", "-Wimplicit", cc_opt ]
- ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
- ++ cc_opts
- ++ split_opt
- ++ include_paths
- ++ pkg_extra_cc_opts
- ))
-
- return (next_phase, dflags, maybe_loc, output_fn)
-
- -- ToDo: postprocess the output from gcc
-
------------------------------------------------------------------------------
--- Mangle phase
-
-runPhase Mangle stop dflags _basename _suff input_fn get_output_fn maybe_loc
- = do let mangler_opts = getOpts dflags opt_m
-
-#if i386_TARGET_ARCH
- machdep_opts <- return [ show (stolen_x86_regs dflags) ]
-#else
- machdep_opts <- return []
-#endif
-
- let split = dopt Opt_SplitObjs dflags
- next_phase
- | split = SplitMangle
- | otherwise = As
- output_fn <- get_output_fn next_phase maybe_loc
-
- SysTools.runMangle dflags (map SysTools.Option mangler_opts
- ++ [ SysTools.FileOption "" input_fn
- , SysTools.FileOption "" output_fn
- ]
- ++ map SysTools.Option machdep_opts)
-
- return (next_phase, dflags, maybe_loc, output_fn)
-
------------------------------------------------------------------------------
--- Splitting phase
-
-runPhase SplitMangle stop dflags _basename _suff input_fn get_output_fn maybe_loc
- = do -- tmp_pfx is the prefix used for the split .s files
- -- We also use it as the file to contain the no. of split .s files (sigh)
- split_s_prefix <- SysTools.newTempName dflags "split"
- let n_files_fn = split_s_prefix
-
- SysTools.runSplit dflags
- [ SysTools.FileOption "" input_fn
- , SysTools.FileOption "" split_s_prefix
- , SysTools.FileOption "" n_files_fn
- ]
-
- -- Save the number of split files for future references
- s <- readFile n_files_fn
- let n_files = read s :: Int
- writeIORef v_Split_info (split_s_prefix, n_files)
-
- -- Remember to delete all these files
- addFilesToClean [ split_s_prefix ++ "__" ++ show n ++ ".s"
- | n <- [1..n_files]]
-
- return (SplitAs, dflags, maybe_loc, "**splitmangle**")
- -- we don't use the filename
-
------------------------------------------------------------------------------
--- As phase
-
-runPhase As stop dflags _basename _suff input_fn get_output_fn maybe_loc
- = do let as_opts = getOpts dflags opt_a
- let cmdline_include_paths = includePaths dflags
-
- output_fn <- get_output_fn StopLn maybe_loc
-
- -- we create directories for the object file, because it
- -- might be a hierarchical module.
- createDirectoryHierarchy (directoryOf output_fn)
-
- SysTools.runAs dflags
- (map SysTools.Option as_opts
- ++ [ SysTools.Option ("-I" ++ p) | p <- cmdline_include_paths ]
- ++ [ SysTools.Option "-c"
- , SysTools.FileOption "" input_fn
- , SysTools.Option "-o"
- , SysTools.FileOption "" output_fn
- ])
-
- return (StopLn, dflags, maybe_loc, output_fn)
-
-
-runPhase SplitAs stop dflags basename _suff _input_fn get_output_fn maybe_loc
- = do
- output_fn <- get_output_fn StopLn maybe_loc
-
- let (base_o, _) = splitFilename output_fn
- split_odir = base_o ++ "_split"
- osuf = objectSuf dflags
-
- createDirectoryHierarchy split_odir
-
- -- remove M_split/ *.o, because we're going to archive M_split/ *.o
- -- later and we don't want to pick up any old objects.
- fs <- getDirectoryContents split_odir
- mapM_ removeFile $ map (split_odir `joinFileName`)
- $ filter (osuf `isSuffixOf`) fs
-
- let as_opts = getOpts dflags opt_a
-
- (split_s_prefix, n) <- readIORef v_Split_info
-
- let split_s n = split_s_prefix ++ "__" ++ show n `joinFileExt` "s"
- split_obj n = split_odir `joinFileName`
- filenameOf base_o ++ "__" ++ show n
- `joinFileExt` osuf
-
- let assemble_file n
- = SysTools.runAs dflags
- (map SysTools.Option as_opts ++
- [ SysTools.Option "-c"
- , SysTools.Option "-o"
- , SysTools.FileOption "" (split_obj n)
- , SysTools.FileOption "" (split_s n)
- ])
-
- mapM_ assemble_file [1..n]
-
- -- and join the split objects into a single object file:
- let ld_r args = SysTools.runLink dflags ([
- SysTools.Option "-nostdlib",
- SysTools.Option "-nodefaultlibs",
- SysTools.Option "-Wl,-r",
- SysTools.Option ld_x_flag,
- SysTools.Option "-o",
- SysTools.FileOption "" output_fn ] ++ args)
- ld_x_flag | null cLD_X = ""
- | otherwise = "-Wl,-x"
-
- if cLdIsGNULd == "YES"
- then do
- let script = split_odir `joinFileName` "ld.script"
- writeFile script $
- "INPUT(" ++ unwords (map split_obj [1..n]) ++ ")"
- ld_r [SysTools.FileOption "" script]
- else do
- ld_r (map (SysTools.FileOption "" . split_obj) [1..n])
-
- return (StopLn, dflags, maybe_loc, output_fn)
-
-
------------------------------------------------------------------------------
--- MoveBinary sort-of-phase
--- After having produced a binary, move it somewhere else and generate a
--- 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 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
-
-runPhase_MoveBinary input_fn
- = do
- sysMan <- getSysMan
- pvm_root <- getEnv "PVM_ROOT"
- pvm_arch <- getEnv "PVM_ARCH"
- let
- 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)
- -- move the newly created binary into PVM land
- system ("cp -p " ++ 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
-
--- generates a Perl skript starting a parallel prg under PVM
-mk_pvm_wrapper_script :: String -> String -> String -> String
-mk_pvm_wrapper_script pvm_executable pvm_executable_base sysMan = unlines $
- [
- "eval 'exec perl -S $0 ${1+\"$@\"}'",
- " if $running_under_some_shell;",
- "# =!=!=!=!=!=!=!=!=!=!=!",
- "# This script is automatically generated: DO NOT EDIT!!!",
- "# Generated by Glasgow Haskell Compiler",
- "# ngoqvam choHbogh vaj' vIHoHnISbej !!!!",
- "#",
- "$pvm_executable = '" ++ pvm_executable ++ "';",
- "$pvm_executable_base = '" ++ pvm_executable_base ++ "';",
- "$SysMan = '" ++ sysMan ++ "';",
- "",
- {- ToDo: add the magical shortcuts again iff we actually use them -- HWL
- "# first, some magical shortcuts to run "commands" on the binary",
- "# (which is hidden)",
- "if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {",
- " local($cmd) = $1;",
- " system("$cmd $pvm_executable");",
- " exit(0); # all done",
- "}", -}
- "",
- "# Now, run the real binary; process the args first",
- "$ENV{'PE'} = $pvm_executable_base;", -- ++ pvm_executable_base,
- "$debug = '';",
- "$nprocessors = 0; # the default: as many PEs as machines in PVM config",
- "@nonPVM_args = ();",
- "$in_RTS_args = 0;",
- "",
- "args: while ($a = shift(@ARGV)) {",
- " if ( $a eq '+RTS' ) {",
- " $in_RTS_args = 1;",
- " } elsif ( $a eq '-RTS' ) {",
- " $in_RTS_args = 0;",
- " }",
- " if ( $a eq '-d' && $in_RTS_args ) {",
- " $debug = '-';",
- " } elsif ( $a =~ /^-qN(\\d+)/ && $in_RTS_args ) {",
- " $nprocessors = $1;",
- " } elsif ( $a =~ /^-qp(\\d+)/ && $in_RTS_args ) {",
- " $nprocessors = $1;",
- " } else {",
- " push(@nonPVM_args, $a);",
- " }",
- "}",
- "",
- "local($return_val) = 0;",
- "# Start the parallel execution by calling SysMan",
- "system(\"$SysMan $debug $pvm_executable $nprocessors @nonPVM_args\");",
- "$return_val = $?;",
- "# ToDo: fix race condition moving files and flushing them!!",
- "system(\"cp $ENV{'HOME'}/$pvm_executable_base.???.gr .\") if -f \"$ENV{'HOME'}/$pvm_executable_base.002.gr\";",
- "exit($return_val);"
- ]
-
------------------------------------------------------------------------------
--- Complain about non-dynamic flags in OPTIONS pragmas
-
-checkProcessArgsResult flags filename
- = do when (notNull flags) (throwDyn (ProgramError (
- showSDoc (hang (text filename <> 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 [PackageId]
-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 stringToPackageId (words rest))
- _other ->
- return []
-
------------------------------------------------------------------------------
--- 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.
-
-staticLink :: DynFlags -> [FilePath] -> [PackageId] -> IO ()
-staticLink dflags o_files dep_packages = do
- let verb = getVerbFlag dflags
- output_fn = exeFileName dflags
-
- -- 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.
-
- pkg_lib_paths <- getPackageLibraryPath dflags dep_packages
- let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
-
- let lib_paths = libraryPaths dflags
- let lib_path_opts = map ("-L"++) lib_paths
-
- pkg_link_opts <- getPackageLinkOpts dflags dep_packages
-
-#ifdef darwin_TARGET_OS
- pkg_framework_paths <- getPackageFrameworkPath dflags dep_packages
- let pkg_framework_path_opts = map ("-F"++) pkg_framework_paths
-
- let framework_paths = frameworkPaths dflags
- framework_path_opts = map ("-F"++) framework_paths
-
- pkg_frameworks <- getPackageFrameworks dflags dep_packages
- let pkg_framework_opts = concat [ ["-framework", fw] | fw <- pkg_frameworks ]
-
- let frameworks = cmdlineFrameworks dflags
- framework_opts = concat [ ["-framework", fw] | fw <- 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-<blah> (including -l<blah> options)
- let extra_ld_opts = getOpts dflags opt_l
-
- let ways = wayNames dflags
-
- -- Here are some libs that need to be linked at the *end* of
- -- the command line, because they contain symbols that are referred to
- -- by the RTS. We can't therefore use the ordinary way opts for these.
- let
- debug_opts | WayDebug `elem` ways = [
-#if defined(HAVE_LIBBFD)
- "-lbfd", "-liberty"
-#endif
- ]
- | otherwise = []
-
- let
- thread_opts | WayThreaded `elem` ways = [
-#if !defined(mingw32_TARGET_OS) && !defined(freebsd_TARGET_OS)
- "-lpthread"
-#endif
-#if defined(osf3_TARGET_OS)
- , "-lexc"
-#endif
- ]
- | otherwise = []
-
- let (md_c_flags, _) = machdepCCOpts dflags
- SysTools.runLink dflags (
- [ SysTools.Option verb
- , SysTools.Option "-o"
- , SysTools.FileOption "" output_fn
- ]
- ++ map SysTools.Option (
- md_c_flags
- ++ o_files
- ++ extra_ld_inputs
- ++ lib_path_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
- ++ debug_opts
- ++ thread_opts
- ))
-
- -- parallel only: move binary to another dir -- HWL
- when (WayPar `elem` ways)
- (do success <- runPhase_MoveBinary output_fn
- if success then return ()
- else throwDyn (InstallationError ("cannot move binary to PVM dir")))
-
-
-exeFileName :: DynFlags -> FilePath
-exeFileName dflags
- | Just s <- outputFile dflags =
-#if defined(mingw32_HOST_OS)
- if null (suffixOf s)
- then s `joinFileExt` "exe"
- else s
-#else
- s
-#endif
- | otherwise =
-#if defined(mingw32_HOST_OS)
- "main.exe"
-#else
- "a.out"
-#endif
-
------------------------------------------------------------------------------
--- Making a DLL (only for Win32)
-
-doMkDLL :: DynFlags -> [String] -> [PackageId] -> IO ()
-doMkDLL dflags o_files dep_packages = do
- let verb = getVerbFlag dflags
- let static = opt_Static
- let no_hs_main = dopt Opt_NoHsMain dflags
- let o_file = outputFile dflags
- let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
-
- pkg_lib_paths <- getPackageLibraryPath dflags dep_packages
- let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
-
- let lib_paths = libraryPaths dflags
- let lib_path_opts = map ("-L"++) lib_paths
-
- pkg_link_opts <- getPackageLinkOpts dflags dep_packages
-
- -- probably _stub.o files
- extra_ld_inputs <- readIORef v_Ld_inputs
-
- -- opts from -optdll-<blah>
- let extra_ld_opts = getOpts dflags opt_dll
-
- let pstate = pkgState dflags
- rts_id | ExtPackage id <- rtsPackageId pstate = id
- | otherwise = panic "staticLink: rts package missing"
- base_id | ExtPackage id <- basePackageId pstate = id
- | otherwise = panic "staticLink: base package missing"
- rts_pkg = getPackageDetails pstate rts_id
- base_pkg = getPackageDetails pstate base_id
-
- let extra_os = if static || no_hs_main
- then []
- else [ head (libraryDirs rts_pkg) ++ "/Main.dll_o",
- head (libraryDirs base_pkg) ++ "/PrelMain.dll_o" ]
-
- let (md_c_flags, _) = machdepCCOpts dflags
- SysTools.runMkDLL dflags
- ([ SysTools.Option verb
- , SysTools.Option "-o"
- , SysTools.FileOption "" output_fn
- ]
- ++ map SysTools.Option (
- md_c_flags
- ++ o_files
- ++ extra_os
- ++ [ "--target=i386-mingw32" ]
- ++ extra_ld_inputs
- ++ lib_path_opts
- ++ extra_ld_opts
- ++ pkg_lib_path_opts
- ++ pkg_link_opts
- ++ (if "--def" `elem` (concatMap words extra_ld_opts)
- then [ "" ]
- else [ "--export-all" ])
- ))
-
--- -----------------------------------------------------------------------------
--- Running CPP
-
-doCpp :: DynFlags -> Bool -> Bool -> FilePath -> FilePath -> IO ()
-doCpp dflags raw include_cc_opts input_fn output_fn = do
- let hscpp_opts = getOpts dflags opt_P
- let cmdline_include_paths = includePaths dflags
-
- pkg_include_dirs <- getPackageIncludePath dflags []
- let include_paths = foldr (\ x xs -> "-I" : x : xs) []
- (cmdline_include_paths ++ pkg_include_dirs)
-
- let verb = getVerbFlag dflags
-
- let cc_opts
- | not include_cc_opts = []
- | otherwise = (optc ++ md_c_flags)
- where
- optc = getOpts dflags opt_c
- (md_c_flags, _) = machdepCCOpts dflags
-
- let cpp_prog args | raw = SysTools.runCpp dflags args
- | otherwise = SysTools.runCc dflags (SysTools.Option "-E" : args)
-
- let target_defs =
- [ "-D" ++ HOST_OS ++ "_BUILD_OS=1",
- "-D" ++ HOST_ARCH ++ "_BUILD_ARCH=1",
- "-D" ++ TARGET_OS ++ "_HOST_OS=1",
- "-D" ++ TARGET_ARCH ++ "_HOST_ARCH=1" ]
- -- remember, in code we *compile*, the HOST is the same our TARGET,
- -- and BUILD is the same as our HOST.
-
- cpp_prog ([SysTools.Option verb]
- ++ map SysTools.Option include_paths
- ++ map SysTools.Option hsSourceCppOpts
- ++ map SysTools.Option hscpp_opts
- ++ map SysTools.Option cc_opts
- ++ map SysTools.Option target_defs
- ++ [ SysTools.Option "-x"
- , SysTools.Option "c"
- , SysTools.Option input_fn
- -- We hackily use Option instead of FileOption here, so that the file
- -- name is not back-slashed on Windows. cpp is capable of
- -- dealing with / in filenames, so it works fine. Furthermore
- -- if we put in backslashes, cpp outputs #line directives
- -- with *double* backslashes. And that in turn means that
- -- our error messages get double backslashes in them.
- -- In due course we should arrange that the lexer deals
- -- with these \\ escapes properly.
- , SysTools.Option "-o"
- , SysTools.FileOption "" output_fn
- ])
-
-cHaskell1Version = "5" -- i.e., Haskell 98
-
--- Default CPP defines in Haskell source
-hsSourceCppOpts =
- [ "-D__HASKELL1__="++cHaskell1Version
- , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
- , "-D__HASKELL98__"
- , "-D__CONCURRENT_HASKELL__"
- ]
-
-
--- -----------------------------------------------------------------------------
--- Misc.
-
-hscNextPhase :: DynFlags -> HscSource -> HscTarget -> Phase
-hscNextPhase dflags HsBootFile hsc_lang = StopLn
-hscNextPhase dflags other hsc_lang =
- case hsc_lang of
- HscC -> HCc
- HscAsm | dopt Opt_SplitObjs dflags -> SplitMangle
- | otherwise -> As
- HscNothing -> StopLn
- HscInterpreted -> StopLn
- _other -> StopLn
-
-
-hscMaybeAdjustTarget :: DynFlags -> Phase -> HscSource -> HscTarget -> HscTarget
-hscMaybeAdjustTarget dflags stop HsBootFile current_hsc_lang
- = HscNothing -- No output (other than Foo.hi-boot) for hs-boot files
-hscMaybeAdjustTarget dflags stop other current_hsc_lang
- = hsc_lang
- where
- keep_hc = dopt Opt_KeepHcFiles dflags
- hsc_lang
- -- don't change the lang if we're interpreting
- | current_hsc_lang == HscInterpreted = current_hsc_lang
-
- -- force -fvia-C if we are being asked for a .hc file
- | HCc <- stop = HscC
- | keep_hc = HscC
- -- otherwise, stick to the plan
- | otherwise = current_hsc_lang
-
-GLOBAL_VAR(v_Split_info, ("",0), (String,Int))
- -- The split prefix and number of files
projects / ghc-hetmet.git / blobdiff