{-# OPTIONS -fno-cse #-}
+{-# LANGUAGE NamedFieldPuns #-}
-- -fno-cse is needed for GLOBAL_VAR's to behave properly
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
module DriverPipeline (
- -- Run a series of compilation steps in a pipeline, for a
- -- collection of source files.
+ -- Run a series of compilation steps in a pipeline, for a
+ -- collection of source files.
oneShot, compileFile,
- -- Interfaces for the batch-mode driver
+ -- Interfaces for the batch-mode driver
linkBinary,
- -- Interfaces for the compilation manager (interpreted/batch-mode)
- preprocess,
+ -- Interfaces for the compilation manager (interpreted/batch-mode)
+ preprocess,
compile, compile',
- link,
+ link,
) where
import HscTypes
import Outputable
import Module
-import LazyUniqFM ( eltsUFM )
+import UniqFM ( eltsUFM )
import ErrUtils
import DynFlags
-import StaticFlags ( v_Ld_inputs, opt_Static, WayName(..) )
+import StaticFlags ( v_Ld_inputs, opt_PIC, opt_Static, WayName(..) )
import Config
import Panic
import Util
-import StringBuffer ( hGetStringBuffer )
-import BasicTypes ( SuccessFlag(..) )
-import Maybes ( expectJust )
-import ParserCoreUtils ( getCoreModuleName )
+import StringBuffer ( hGetStringBuffer )
+import BasicTypes ( SuccessFlag(..) )
+import Maybes ( expectJust )
+import ParserCoreUtils ( getCoreModuleName )
import SrcLoc
import FastString
--- import MonadUtils
+import LlvmCodeGen ( llvmFixupAsm )
+import MonadUtils
+import Platform
--- import Data.Either
import Exception
-import Data.IORef ( readIORef )
--- import GHC.Exts ( Int(..) )
+import Data.IORef ( readIORef )
import System.Directory
import System.FilePath
import System.IO
-import System.IO.Error as IO
import Control.Monad
-import Data.List ( isSuffixOf )
+import Data.List ( isSuffixOf )
import Data.Maybe
import System.Environment
+import Data.Char
-- ---------------------------------------------------------------------------
-- Pre-process
-- We return the augmented DynFlags, because they contain the result
-- of slurping in the OPTIONS pragmas
-preprocess :: GhcMonad m =>
- HscEnv
+preprocess :: HscEnv
-> (FilePath, Maybe Phase) -- ^ filename and starting phase
- -> m (DynFlags, FilePath)
+ -> IO (DynFlags, FilePath)
preprocess hsc_env (filename, mb_phase) =
- ASSERT2(isJust mb_phase || isHaskellSrcFilename filename, text filename)
- runPipeline anyHsc hsc_env (filename, mb_phase)
- Nothing Temporary Nothing{-no ModLocation-}
+ ASSERT2(isJust mb_phase || isHaskellSrcFilename filename, text filename)
+ runPipeline anyHsc hsc_env (filename, mb_phase)
+ Nothing Temporary Nothing{-no ModLocation-} Nothing{-no stub-}
-- ---------------------------------------------------------------------------
--
-- 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.
+-- reading the OPTIONS pragma from the source file, converting the
+-- C or assembly that GHC produces into an object file, and compiling
+-- FFI stub files.
--
-- NB. No old interface can also mean that the source has changed.
-compile :: GhcMonad m =>
- HscEnv
+compile :: HscEnv
-> ModSummary -- ^ summary for module being compiled
-> Int -- ^ module N ...
-> Int -- ^ ... of M
-> Maybe ModIface -- ^ old interface, if we have one
-> Maybe Linkable -- ^ old linkable, if we have one
- -> m HomeModInfo -- ^ the complete HomeModInfo, if successful
+ -> IO HomeModInfo -- ^ the complete HomeModInfo, if successful
compile = compile' (hscCompileNothing, hscCompileInteractive, hscCompileBatch)
-type Compiler m a = HscEnv -> ModSummary -> Bool
- -> Maybe ModIface -> Maybe (Int, Int)
- -> m a
-
-compile' :: GhcMonad m =>
- (Compiler m (HscStatus, ModIface, ModDetails),
- Compiler m (InteractiveStatus, ModIface, ModDetails),
- Compiler m (HscStatus, ModIface, ModDetails))
+compile' ::
+ (Compiler (HscStatus, ModIface, ModDetails),
+ Compiler (InteractiveStatus, ModIface, ModDetails),
+ Compiler (HscStatus, ModIface, ModDetails))
-> HscEnv
-> ModSummary -- ^ summary for module being compiled
-> Int -- ^ module N ...
-> Int -- ^ ... of M
-> Maybe ModIface -- ^ old interface, if we have one
-> Maybe Linkable -- ^ old linkable, if we have one
- -> m HomeModInfo -- ^ the complete HomeModInfo, if successful
+ -> IO HomeModInfo -- ^ the complete HomeModInfo, if successful
compile' (nothingCompiler, interactiveCompiler, batchCompiler)
hsc_env0 summary mod_index nmods mb_old_iface maybe_old_linkable
let dflags0 = ms_hspp_opts summary
this_mod = ms_mod summary
src_flavour = ms_hsc_src summary
- location = ms_location summary
- input_fn = expectJust "compile:hs" (ml_hs_file location)
+ location = ms_location summary
+ input_fn = expectJust "compile:hs" (ml_hs_file location)
input_fnpp = ms_hspp_file summary
- liftIO $ debugTraceMsg dflags0 2 (text "compile: input file" <+> text input_fnpp)
+ debugTraceMsg dflags0 2 (text "compile: input file" <+> text input_fnpp)
let basename = dropExtension input_fn
hsc_env = hsc_env0 {hsc_dflags = dflags}
-- Figure out what lang we're generating
- let hsc_lang = hscMaybeAdjustTarget dflags StopLn src_flavour (hscTarget dflags)
+ let hsc_lang = 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 <- liftIO $ getOutputFilename next_phase
- Temporary basename dflags next_phase (Just location)
+ output_fn <- getOutputFilename next_phase
+ Temporary basename dflags next_phase (Just location)
let dflags' = dflags { hscTarget = hsc_lang,
- hscOutName = output_fn,
- extCoreName = basename ++ ".hcr" }
+ hscOutName = output_fn,
+ extCoreName = basename ++ ".hcr" }
let hsc_env' = hsc_env { hsc_dflags = dflags' }
-- -fforce-recomp should also work with --make
source_unchanged = isJust maybe_old_linkable && not force_recomp
object_filename = ml_obj_file location
- let getStubLinkable False = return []
- getStubLinkable True
- = do stub_o <- compileStub hsc_env' this_mod location
- return [ DotO stub_o ]
-
- handleBatch HscNoRecomp
+ let handleBatch HscNoRecomp
= ASSERT (isJust maybe_old_linkable)
return maybe_old_linkable
return maybe_old_linkable
| otherwise
- = do stub_unlinked <- getStubLinkable hasStub
- (hs_unlinked, unlinked_time) <-
+ = do (hs_unlinked, unlinked_time) <-
case hsc_lang of
- HscNothing
- -> return ([], ms_hs_date summary)
+ HscNothing ->
+ return ([], ms_hs_date summary)
-- We're in --make mode: finish the compilation pipeline.
- _other
- -> do _ <- runPipeline StopLn hsc_env' (output_fn,Nothing)
+ _other -> do
+ maybe_stub_o <- case hasStub of
+ Nothing -> return Nothing
+ Just stub_c -> do
+ stub_o <- compileStub hsc_env' stub_c
+ return (Just stub_o)
+ _ <- runPipeline StopLn hsc_env' (output_fn,Nothing)
(Just basename)
Persistent
(Just location)
+ maybe_stub_o
-- The object filename comes from the ModLocation
- o_time <- liftIO $ getModificationTime object_filename
- return ([DotO object_filename], o_time)
- let linkable = LM unlinked_time this_mod
- (hs_unlinked ++ stub_unlinked)
+ o_time <- getModificationTime object_filename
+ return ([DotO object_filename], o_time)
+
+ let linkable = LM unlinked_time this_mod hs_unlinked
return (Just linkable)
handleInterpreted HscNoRecomp
= ASSERT (isHsBoot src_flavour)
return maybe_old_linkable
handleInterpreted (HscRecomp hasStub (Just (comp_bc, modBreaks)))
- = do stub_unlinked <- getStubLinkable hasStub
+ = do stub_o <- case hasStub of
+ Nothing -> return []
+ Just stub_c -> do
+ stub_o <- compileStub hsc_env' stub_c
+ return [DotO stub_o]
+
let hs_unlinked = [BCOs comp_bc modBreaks]
unlinked_time = ms_hs_date summary
-- Why do we use the timestamp of the source file here,
-- if the source is modified, then the linkable will
-- be out of date.
let linkable = LM unlinked_time this_mod
- (hs_unlinked ++ stub_unlinked)
+ (hs_unlinked ++ stub_o)
return (Just linkable)
let -- runCompiler :: Compiler result -> (result -> Maybe Linkable)
hm_linkable = linkable })
-- run the compiler
case hsc_lang of
- HscInterpreted ->
- runCompiler interactiveCompiler handleInterpreted
- HscNothing ->
- runCompiler nothingCompiler handleBatch
- _other ->
- runCompiler batchCompiler handleBatch
-
+ HscInterpreted -> runCompiler interactiveCompiler handleInterpreted
+ HscNothing -> runCompiler nothingCompiler handleBatch
+ _other -> runCompiler batchCompiler 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.
+-- The object file created by compiling the _stub.c file is put into a
+-- temporary file, which will be later combined with the main .o file
+-- (see the MergeStubs phase).
-compileStub :: GhcMonad m => HscEnv -> Module -> ModLocation
- -> m FilePath
-compileStub hsc_env mod location = do
- -- compile the _stub.c file w/ gcc
- let (stub_c,_,stub_o) = mkStubPaths (hsc_dflags hsc_env)
- (moduleName mod) location
-
- _ <- runPipeline StopLn hsc_env (stub_c,Nothing) Nothing
- (SpecificFile stub_o) Nothing{-no ModLocation-}
-
- return stub_o
+compileStub :: HscEnv -> FilePath -> IO FilePath
+compileStub hsc_env stub_c = do
+ (_, stub_o) <- runPipeline StopLn hsc_env (stub_c,Nothing) Nothing
+ Temporary Nothing{-no ModLocation-} Nothing
+ return stub_o
-- ---------------------------------------------------------------------------
-- Link
-- exports main, i.e., we have good reason to believe that linking
-- will succeed.
-#ifdef GHCI
link LinkInMemory _ _ _
- = do -- Not Linking...(demand linker will do the job)
- return Succeeded
-#endif
+ = if cGhcWithInterpreter == "YES"
+ then -- Not Linking...(demand linker will do the job)
+ return Succeeded
+ else panicBadLink LinkInMemory
link NoLink _ _ _
= return Succeeded
link LinkDynLib dflags batch_attempt_linking hpt
= link' dflags batch_attempt_linking hpt
-#ifndef GHCI
--- warning suppression
-link other _ _ _ = panicBadLink other
-#endif
-
panicBadLink :: GhcLink -> a
panicBadLink other = panic ("link: GHC not built to link this way: " ++
show other)
-- modification times on all of the objects and libraries, then omit
-- linking (unless the -fforce-recomp flag was given).
let exe_file = exeFileName dflags
- e_exe_time <- IO.try $ getModificationTime exe_file
+ e_exe_time <- tryIO $ getModificationTime exe_file
case e_exe_time of
Left _ -> return True
Right t -> do
-- first check object files and extra_ld_inputs
extra_ld_inputs <- readIORef v_Ld_inputs
- e_extra_times <- mapM (IO.try . getModificationTime) extra_ld_inputs
+ e_extra_times <- mapM (tryIO . getModificationTime) extra_ld_inputs
let (errs,extra_times) = splitEithers e_extra_times
let obj_times = map linkableTime linkables ++ extra_times
if not (null errs) || any (t <) obj_times
- then return True
+ then return True
else do
-- next, check libraries. XXX this only checks Haskell libraries,
pkg_libfiles <- mapM (uncurry findHSLib) pkg_hslibs
if any isNothing pkg_libfiles then return True else do
- e_lib_times <- mapM (IO.try . getModificationTime)
+ e_lib_times <- mapM (tryIO . getModificationTime)
(catMaybes pkg_libfiles)
let (lib_errs,lib_times) = splitEithers e_lib_times
if not (null lib_errs) || any (t <) lib_times
then return True
- else return False
+ else checkLinkInfo dflags pkg_deps exe_file
+
+-- Returns 'False' if it was, and we can avoid linking, because the
+-- previous binary was linked with "the same options".
+checkLinkInfo :: DynFlags -> [PackageId] -> FilePath -> IO Bool
+checkLinkInfo dflags pkg_deps exe_file
+ | isWindowsTarget || isDarwinTarget
+ -- ToDo: Windows and OS X do not use the ELF binary format, so
+ -- readelf does not work there. We need to find another way to do
+ -- this.
+ = return False -- conservatively we should return True, but not
+ -- linking in this case was the behaviour for a long
+ -- time so we leave it as-is.
+ | otherwise
+ = do
+ link_info <- getLinkInfo dflags pkg_deps
+ debugTraceMsg dflags 3 $ text ("Link info: " ++ link_info)
+ m_exe_link_info <- readElfSection dflags ghcLinkInfoSectionName exe_file
+ debugTraceMsg dflags 3 $ text ("Exe link info: " ++ show m_exe_link_info)
+ return (Just link_info /= m_exe_link_info)
+
+ghcLinkInfoSectionName :: String
+ghcLinkInfoSectionName = ".debug-ghc-link-info"
+ -- if we use the ".debug" prefix, then strip will strip it by default
findHSLib :: [String] -> String -> IO (Maybe FilePath)
findHSLib dirs lib = do
-- -----------------------------------------------------------------------------
-- Compile files in one-shot mode.
-oneShot :: GhcMonad m =>
- HscEnv -> Phase -> [(String, Maybe Phase)] -> m ()
+oneShot :: HscEnv -> Phase -> [(String, Maybe Phase)] -> IO ()
oneShot hsc_env stop_phase srcs = do
o_files <- mapM (compileFile hsc_env stop_phase) srcs
- liftIO $ doLink (hsc_dflags hsc_env) stop_phase o_files
+ doLink (hsc_dflags hsc_env) stop_phase o_files
-compileFile :: GhcMonad m =>
- HscEnv -> Phase -> (FilePath, Maybe Phase) -> m FilePath
+compileFile :: HscEnv -> Phase -> (FilePath, Maybe Phase) -> IO FilePath
compileFile hsc_env stop_phase (src, mb_phase) = do
- exists <- liftIO $ doesFileExist src
- when (not exists) $
- ghcError (CmdLineError ("does not exist: " ++ src))
-
+ exists <- doesFileExist src
+ when (not exists) $
+ ghcError (CmdLineError ("does not exist: " ++ src))
+
let
dflags = hsc_dflags hsc_env
- split = dopt Opt_SplitObjs dflags
- mb_o_file = outputFile dflags
- ghc_link = ghcLink dflags -- Set by -c or -no-link
+ 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.
+ -- 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
+ | 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
_ -> stop_phase
( _, out_file) <- runPipeline stop_phase' hsc_env
(src, mb_phase) Nothing output
- Nothing{-no ModLocation-}
+ Nothing{-no ModLocation-} Nothing
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
+ = return () -- We stopped before the linking phase
| otherwise
= case ghcLink dflags of
- NoLink -> return ()
- LinkBinary -> linkBinary dflags o_files link_pkgs
- LinkDynLib -> linkDynLib dflags o_files []
+ NoLink -> return ()
+ LinkBinary -> linkBinary dflags o_files []
+ LinkDynLib -> linkDynLib dflags o_files []
other -> panicBadLink other
- where
- -- Always link in the haskell98 package for static linking. Other
- -- packages have to be specified via the -package flag.
- link_pkgs
- | dopt Opt_AutoLinkPackages dflags = [haskell98PackageId]
- | otherwise = []
-- ---------------------------------------------------------------------------
-data PipelineOutput
+data PipelineOutput
= Temporary
- -- ^ Output should be to a temporary file: we're going to
- -- run more compilation steps on this output later.
+ -- ^ 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.
+ -- ^ 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.
+ -- ^ The output must go into the specified file.
-- | Run a compilation pipeline, consisting of multiple phases.
--
-- OPTIONS_GHC pragmas), and the changes affect later phases in the
-- pipeline.
runPipeline
- :: GhcMonad m =>
- Phase -- ^ When to stop
+ :: Phase -- ^ When to stop
-> HscEnv -- ^ Compilation environment
-> (FilePath,Maybe Phase) -- ^ Input filename (and maybe -x suffix)
-> Maybe FilePath -- ^ original basename (if different from ^^^)
- -> PipelineOutput -- ^ Output filename
+ -> PipelineOutput -- ^ Output filename
-> Maybe ModLocation -- ^ A ModLocation, if this is a Haskell module
- -> m (DynFlags, FilePath) -- ^ (final flags, output filename)
+ -> Maybe FilePath -- ^ stub object, if we have one
+ -> IO (DynFlags, FilePath) -- ^ (final flags, output filename)
-runPipeline stop_phase hsc_env0 (input_fn, mb_phase) mb_basename output maybe_loc
+runPipeline stop_phase hsc_env0 (input_fn, mb_phase)
+ mb_basename output maybe_loc maybe_stub_o
= do
let dflags0 = hsc_dflags hsc_env0
(input_basename, suffix) = splitExtension input_fn
dflags = dflags0 { dumpPrefix = Just (basename ++ ".") }
hsc_env = hsc_env0 {hsc_dflags = dflags}
- -- If we were given a -x flag, then use that phase to start from
+ -- If we were given a -x flag, then use that phase to start from
start_phase = fromMaybe (startPhase suffix') mb_phase
-- We want to catch cases of "you can't get there from here" before
-- before B in a normal compilation pipeline.
when (not (start_phase `happensBefore` stop_phase)) $
- ghcError (UsageError
- ("cannot compile this file to desired target: "
- ++ input_fn))
+ ghcError (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 stop_phase output basename
-- Execute the pipeline...
- (dflags', output_fn, maybe_loc) <-
- pipeLoop hsc_env start_phase stop_phase input_fn
- basename suffix' get_output_fn maybe_loc
+ let env = PipeEnv{ stop_phase,
+ src_basename = basename,
+ src_suffix = suffix',
+ output_spec = output }
+
+ state = PipeState{ hsc_env, maybe_loc, maybe_stub_o = maybe_stub_o }
+
+ (state', output_fn) <- unP (pipeLoop start_phase input_fn) env state
+
+ let PipeState{ hsc_env=hsc_env', maybe_loc } = state'
+ dflags' = hsc_dflags hsc_env'
-- 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
-- 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 -> liftIO $
- do final_fn <- get_output_fn dflags' stop_phase maybe_loc
- when (final_fn /= output_fn) $ do
+ Temporary ->
+ return (dflags', output_fn)
+ _other ->
+ do final_fn <- get_output_fn dflags' stop_phase maybe_loc
+ 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)
-
-
+ copyWithHeader dflags msg line_prag output_fn final_fn
+ return (dflags', final_fn)
-pipeLoop :: GhcMonad m =>
- HscEnv -> Phase -> Phase
- -> FilePath -> String -> Suffix
- -> (DynFlags -> Phase -> Maybe ModLocation -> IO FilePath)
- -> Maybe ModLocation
- -> m (DynFlags, FilePath, Maybe ModLocation)
-
-pipeLoop hsc_env phase stop_phase
- input_fn orig_basename orig_suff
- orig_get_output_fn maybe_loc
-
- | phase `eqPhase` stop_phase -- All done
- = return (hsc_dflags hsc_env, input_fn, maybe_loc)
+-- -----------------------------------------------------------------------------
+-- The pipeline uses a monad to carry around various bits of information
+
+-- PipeEnv: invariant information passed down
+data PipeEnv = PipeEnv {
+ stop_phase :: Phase, -- ^ Stop just before this phase
+ src_basename :: String, -- ^ basename of original input source
+ src_suffix :: String, -- ^ its extension
+ output_spec :: PipelineOutput -- ^ says where to put the pipeline output
+ }
+
+-- PipeState: information that might change during a pipeline run
+data PipeState = PipeState {
+ hsc_env :: HscEnv,
+ -- ^ only the DynFlags change in the HscEnv. The DynFlags change
+ -- at various points, for example when we read the OPTIONS_GHC
+ -- pragmas in the Cpp phase.
+ maybe_loc :: Maybe ModLocation,
+ -- ^ the ModLocation. This is discovered during compilation,
+ -- in the Hsc phase where we read the module header.
+ maybe_stub_o :: Maybe FilePath
+ -- ^ the stub object. This is set by the Hsc phase if a stub
+ -- object was created. The stub object will be joined with
+ -- the main compilation object using "ld -r" at the end.
+ }
+
+getPipeEnv :: CompPipeline PipeEnv
+getPipeEnv = P $ \env state -> return (state, env)
+
+getPipeState :: CompPipeline PipeState
+getPipeState = P $ \_env state -> return (state, state)
+
+getDynFlags :: CompPipeline DynFlags
+getDynFlags = P $ \_env state -> return (state, hsc_dflags (hsc_env state))
+
+setDynFlags :: DynFlags -> CompPipeline ()
+setDynFlags dflags = P $ \_env state ->
+ return (state{hsc_env= (hsc_env state){ hsc_dflags = dflags }}, ())
+
+setModLocation :: ModLocation -> CompPipeline ()
+setModLocation loc = P $ \_env state ->
+ return (state{ maybe_loc = Just loc }, ())
+
+setStubO :: FilePath -> CompPipeline ()
+setStubO stub_o = P $ \_env state ->
+ return (state{ maybe_stub_o = Just stub_o }, ())
+
+newtype CompPipeline a = P { unP :: PipeEnv -> PipeState -> IO (PipeState, a) }
+
+instance Monad CompPipeline where
+ return a = P $ \_env state -> return (state, a)
+ P m >>= k = P $ \env state -> do (state',a) <- m env state
+ unP (k a) env state'
+
+io :: IO a -> CompPipeline a
+io m = P $ \_env state -> do a <- m; return (state, a)
+
+phaseOutputFilename :: Phase{-next phase-} -> CompPipeline FilePath
+phaseOutputFilename next_phase = do
+ PipeEnv{stop_phase, src_basename, output_spec} <- getPipeEnv
+ PipeState{maybe_loc, hsc_env} <- getPipeState
+ let dflags = hsc_dflags hsc_env
+ io $ getOutputFilename stop_phase output_spec
+ src_basename dflags next_phase 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)
+-- ---------------------------------------------------------------------------
+-- outer pipeline loop
+
+-- | pipeLoop runs phases until we reach the stop phase
+pipeLoop :: Phase -> FilePath -> CompPipeline FilePath
+pipeLoop phase input_fn = do
+ PipeEnv{stop_phase} <- getPipeEnv
+ PipeState{hsc_env} <- getPipeState
+ case () of
+ _ | phase `eqPhase` stop_phase -- All done
+ -> return input_fn
+
+ | 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 io $ debugTraceMsg (hsc_dflags hsc_env) 4
+ (ptext (sLit "Running phase") <+> ppr phase)
+ dflags <- getDynFlags
+ (next_phase, output_fn) <- runPhase phase input_fn dflags
+ pipeLoop next_phase output_fn
- | otherwise
- = do (next_phase, dflags', maybe_loc, output_fn)
- <- runPhase phase stop_phase hsc_env orig_basename
- orig_suff input_fn orig_get_output_fn maybe_loc
- let hsc_env' = hsc_env {hsc_dflags = dflags'}
- pipeLoop hsc_env' next_phase stop_phase output_fn
- orig_basename orig_suff orig_get_output_fn maybe_loc
+-- -----------------------------------------------------------------------------
+-- In each phase, we need to know into what filename to generate the
+-- output. All the logic about which filenames we generate output
+-- into is embodied in the following function.
getOutputFilename
:: Phase -> PipelineOutput -> String
getOutputFilename stop_phase output basename
= func
where
- func dflags 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
- 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
-
- 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 <.> suffix
-
- odir_persistent
- | Just loc <- maybe_location = ml_obj_file loc
- | Just d <- odir = d </> persistent
- | otherwise = persistent
+ func dflags 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
+ hcsuf = hcSuf dflags
+ odir = objectDir dflags
+ osuf = objectSuf dflags
+ keep_hc = dopt Opt_KeepHcFiles dflags
+ keep_s = dopt Opt_KeepSFiles dflags
+ keep_bc = dopt Opt_KeepLlvmFiles dflags
+
+ myPhaseInputExt HCc = hcsuf
+ myPhaseInputExt MergeStub = osuf
+ myPhaseInputExt StopLn = osuf
+ myPhaseInputExt other = phaseInputExt other
+
+ is_last_phase = next_phase `eqPhase` stop_phase
+
+ -- sometimes, we keep output from intermediate stages
+ keep_this_output =
+ case next_phase of
+ As | keep_s -> True
+ LlvmOpt | keep_bc -> 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 <.> suffix
+
+ odir_persistent
+ | Just loc <- maybe_location = ml_obj_file loc
+ | Just d <- odir = d </> persistent
+ | otherwise = persistent
-- -----------------------------------------------------------------------------
-- 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 :: GhcMonad m =>
- Phase -- ^ Do this phase first
- -> Phase -- ^ Stop just before this phase
- -> HscEnv
- -> String -- ^ basename of original input source
- -> String -- ^ its extension
- -> FilePath -- ^ name of file which contains the input to this phase.
- -> (DynFlags -> Phase -> Maybe ModLocation -> IO FilePath)
- -- ^ how to calculate the output filename
- -> Maybe ModLocation -- ^ the ModLocation, if we have one
- -> m (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
+runPhase :: Phase -- ^ Run this phase
+ -> FilePath -- ^ name of the input file
+ -> DynFlags -- ^ for convenience, we pass the current dflags in
+ -> CompPipeline (Phase, -- next phase to run
+ 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
+-- Unlit phase
-runPhase (Unlit sf) _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
+runPhase (Unlit sf) input_fn dflags
= do
- let dflags = hsc_dflags hsc_env
- output_fn <- liftIO $ get_output_fn dflags (Cpp sf) maybe_loc
+ output_fn <- phaseOutputFilename (Cpp sf)
let unlit_flags = getOpts dflags opt_L
flags = map SysTools.Option unlit_flags ++
, SysTools.FileOption "" output_fn
]
- liftIO $ SysTools.runUnlit dflags flags
+ io $ SysTools.runUnlit dflags flags
- return (Cpp sf, dflags, maybe_loc, output_fn)
+ return (Cpp sf, output_fn)
-------------------------------------------------------------------------------
-- Cpp phase : (a) gets OPTIONS out of file
--- (b) runs cpp if necessary
+-- (b) runs cpp if necessary
-runPhase (Cpp sf) _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
- = do let dflags0 = hsc_dflags hsc_env
- src_opts <- liftIO $ getOptionsFromFile dflags0 input_fn
- (dflags, unhandled_flags, warns)
- <- liftIO $ parseDynamicNoPackageFlags dflags0 src_opts
- handleFlagWarnings dflags warns
- checkProcessArgsResult unhandled_flags
+runPhase (Cpp sf) input_fn dflags0
+ = do
+ src_opts <- io $ getOptionsFromFile dflags0 input_fn
+ (dflags1, unhandled_flags, warns)
+ <- io $ parseDynamicNoPackageFlags dflags0 src_opts
+ setDynFlags dflags1
+ io $ checkProcessArgsResult unhandled_flags
+
+ if not (xopt Opt_Cpp dflags1) then do
+ -- we have to be careful to emit warnings only once.
+ unless (dopt Opt_Pp dflags1) $ io $ handleFlagWarnings dflags1 warns
- 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 <- liftIO $ get_output_fn dflags (HsPp sf) maybe_loc
- liftIO $ doCpp dflags True{-raw-} False{-no CC opts-} input_fn output_fn
- return (HsPp sf, dflags, maybe_loc, output_fn)
+ -- to the next phase of the pipeline.
+ return (HsPp sf, input_fn)
+ else do
+ output_fn <- phaseOutputFilename (HsPp sf)
+ io $ doCpp dflags1 True{-raw-} False{-no CC opts-} input_fn output_fn
+ -- re-read the pragmas now that we've preprocessed the file
+ -- See #2464,#3457
+ src_opts <- io $ getOptionsFromFile dflags0 output_fn
+ (dflags2, unhandled_flags, warns)
+ <- io $ parseDynamicNoPackageFlags dflags0 src_opts
+ io $ checkProcessArgsResult unhandled_flags
+ unless (dopt Opt_Pp dflags2) $ io $ handleFlagWarnings dflags2 warns
+ -- the HsPp pass below will emit warnings
+
+ setDynFlags dflags2
+
+ return (HsPp sf, output_fn)
-------------------------------------------------------------------------------
--- HsPp phase
+-- HsPp phase
-runPhase (HsPp sf) _stop hsc_env basename suff input_fn get_output_fn maybe_loc
- = do let dflags = hsc_dflags hsc_env
+runPhase (HsPp sf) input_fn dflags
+ = 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 <.> suff
- output_fn <- liftIO $ get_output_fn dflags (Hsc sf) maybe_loc
- liftIO $ 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)
+ -- to the next phase of the pipeline.
+ return (Hsc sf, input_fn)
+ else do
+ let hspp_opts = getOpts dflags opt_F
+ PipeEnv{src_basename, src_suffix} <- getPipeEnv
+ let orig_fn = src_basename <.> src_suffix
+ output_fn <- phaseOutputFilename (Hsc sf)
+ io $ SysTools.runPp dflags
+ ( [ SysTools.Option orig_fn
+ , SysTools.Option input_fn
+ , SysTools.FileOption "" output_fn
+ ] ++
+ map SysTools.Option hspp_opts
+ )
+
+ -- re-read pragmas now that we've parsed the file (see #3674)
+ src_opts <- io $ getOptionsFromFile dflags output_fn
+ (dflags1, unhandled_flags, warns)
+ <- io $ parseDynamicNoPackageFlags dflags src_opts
+ setDynFlags dflags1
+ io $ checkProcessArgsResult unhandled_flags
+ io $ handleFlagWarnings dflags1 warns
+
+ return (Hsc sf, 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 hsc_env basename suff input_fn get_output_fn _maybe_loc
- = do -- normal Hsc mode, not mkdependHS
- let dflags0 = hsc_dflags hsc_env
+runPhase (Hsc src_flavour) input_fn dflags0
+ = do -- normal Hsc mode, not mkdependHS
+
+ PipeEnv{ stop_phase=stop,
+ src_basename=basename,
+ src_suffix=suff } <- getPipeEnv
-- we add the current directory (i.e. the directory in which
-- the .hs files resides) to the include path, since this is
-- what gcc does, and it's probably what you want.
- let current_dir = case takeDirectory basename of
+ let current_dir = case takeDirectory basename of
"" -> "." -- XXX Hack
d -> d
-
- paths = includePaths dflags0
- dflags = dflags0 { includePaths = current_dir : paths }
-
+
+ paths = includePaths dflags0
+ dflags = dflags0 { includePaths = current_dir : paths }
+
+ setDynFlags dflags
+
-- gather the imports and module name
- (hspp_buf,mod_name,imps,src_imps) <-
+ (hspp_buf,mod_name,imps,src_imps) <- io $
case src_flavour of
ExtCoreFile -> do -- no explicit imports in ExtCore input.
- m <- liftIO $ getCoreModuleName input_fn
+ m <- getCoreModuleName input_fn
return (Nothing, mkModuleName m, [], [])
_ -> do
- buf <- liftIO $ hGetStringBuffer input_fn
+ buf <- hGetStringBuffer input_fn
(src_imps,imps,L _ mod_name) <- getImports dflags buf input_fn (basename <.> suff)
return (Just buf, mod_name, imps, src_imps)
-- 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
+ -- 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
+ -- as any to generate them, and better than most. (e.g. takes
-- into accout the -osuf flags)
- location1 <- liftIO $ mkHomeModLocation2 dflags mod_name basename suff
+ location1 <- io $ mkHomeModLocation2 dflags mod_name basename suff
-- Boot-ify it if necessary
- let location2 | isHsBoot src_flavour = addBootSuffixLocn location1
- | otherwise = location1
-
+ 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
+ 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
+ let expl_o_file = outputFile dflags
+ location4 | Just ofile <- expl_o_file
+ , isNoLink (ghcLink dflags)
+ = location3 { ml_obj_file = ofile }
+ | otherwise = location3
- o_file = ml_obj_file location4 -- The real object file
+ o_file = ml_obj_file location4 -- The real object file
+ setModLocation location4
-- Figure out if the source has changed, for recompilation avoidance.
--
-- 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.
- src_timestamp <- liftIO $ getModificationTime (basename <.> suff)
+ src_timestamp <- io $ getModificationTime (basename <.> suff)
- let force_recomp = dopt Opt_ForceRecomp dflags
- source_unchanged <-
+ let force_recomp = dopt Opt_ForceRecomp dflags
+ hsc_lang = hscTarget dflags
+ source_unchanged <- io $
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)
- then return False
- -- Otherwise look at file modification dates
- else do o_file_exists <- liftIO $ doesFileExist o_file
- if not o_file_exists
- then return False -- Need to recompile
- else do t2 <- liftIO $ getModificationTime o_file
- if t2 > src_timestamp
- then return True
- else return False
+ -- 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 <- liftIO $ get_output_fn dflags next_phase (Just location4)
+ let next_phase = hscNextPhase dflags src_flavour hsc_lang
+ output_fn <- phaseOutputFilename next_phase
let dflags' = dflags { hscTarget = hsc_lang,
- hscOutName = output_fn,
- extCoreName = basename ++ ".hcr" }
+ hscOutName = output_fn,
+ extCoreName = basename ++ ".hcr" }
- let hsc_env' = hsc_env {hsc_dflags = dflags'}
+ setDynFlags dflags'
+ PipeState{hsc_env=hsc_env'} <- getPipeState
-- Tell the finder cache about this module
- mod <- liftIO $ addHomeModuleToFinder hsc_env' mod_name location4
+ mod <- io $ addHomeModuleToFinder hsc_env' mod_name location4
-- Make the ModSummary to hand to hscMain
- let
- mod_summary = ModSummary { ms_mod = mod,
- ms_hsc_src = src_flavour,
- ms_hspp_file = input_fn,
+ let
+ mod_summary = ModSummary { ms_mod = mod,
+ 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 = imps,
- ms_srcimps = src_imps }
+ ms_hspp_buf = hspp_buf,
+ ms_location = location4,
+ ms_hs_date = src_timestamp,
+ ms_obj_date = Nothing,
+ ms_imps = imps,
+ ms_srcimps = src_imps }
-- run the compiler!
- result <- hscCompileOneShot hsc_env'
- mod_summary source_unchanged
- Nothing -- No iface
+ result <- io $ hscCompileOneShot hsc_env'
+ mod_summary source_unchanged
+ Nothing -- No iface
Nothing -- No "module i of n" progress info
- case result of
+ case result of
HscNoRecomp
- -> do liftIO $ SysTools.touch dflags' "Touching object file" o_file
+ -> do io $ 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)
+ return (StopLn, o_file)
(HscRecomp hasStub _)
- -> do when hasStub $
- do stub_o <- compileStub hsc_env' mod location4
- liftIO $ consIORef v_Ld_inputs stub_o
- -- In the case of hs-boot files, generate a dummy .o-boot
+ -> do case hasStub of
+ Nothing -> return ()
+ Just stub_c ->
+ do stub_o <- io $ compileStub hsc_env' stub_c
+ setStubO 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) $
- liftIO $ SysTools.touch dflags' "Touching object file" o_file
- return (next_phase, dflags', Just location4, output_fn)
+ io $ SysTools.touch dflags' "Touching object file" o_file
+ return (next_phase, output_fn)
-----------------------------------------------------------------------------
-- Cmm phase
-runPhase CmmCpp _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
+runPhase CmmCpp input_fn dflags
= do
- let dflags = hsc_dflags hsc_env
- output_fn <- liftIO $ get_output_fn dflags Cmm maybe_loc
- liftIO $ doCpp dflags False{-not raw-} True{-include CC opts-} input_fn output_fn
- return (Cmm, dflags, maybe_loc, output_fn)
+ output_fn <- phaseOutputFilename Cmm
+ io $ doCpp dflags False{-not raw-} True{-include CC opts-}
+ input_fn output_fn
+ return (Cmm, output_fn)
-runPhase Cmm stop hsc_env basename _ input_fn get_output_fn maybe_loc
+runPhase Cmm input_fn dflags
= do
- let dflags = hsc_dflags hsc_env
- let hsc_lang = hscMaybeAdjustTarget dflags stop HsSrcFile (hscTarget dflags)
- let next_phase = hscNextPhase dflags HsSrcFile hsc_lang
- output_fn <- liftIO $ get_output_fn dflags next_phase maybe_loc
+ PipeEnv{src_basename} <- getPipeEnv
+ let hsc_lang = hscTarget dflags
+
+ let next_phase = hscNextPhase dflags HsSrcFile hsc_lang
+
+ output_fn <- phaseOutputFilename next_phase
let dflags' = dflags { hscTarget = hsc_lang,
- hscOutName = output_fn,
- extCoreName = basename ++ ".hcr" }
- let hsc_env' = hsc_env {hsc_dflags = dflags'}
+ hscOutName = output_fn,
+ extCoreName = src_basename ++ ".hcr" }
- hscCmmFile hsc_env' input_fn
+ setDynFlags dflags'
+ PipeState{hsc_env} <- getPipeState
+
+ io $ hscCompileCmmFile hsc_env input_fn
-- XXX: catch errors above and convert them into ghcError? Original
-- code was:
--
- --when (not ok) $ ghcError (PhaseFailed "cmm" (ExitFailure 1))
+ --when (not ok) $ ghcError (PhaseFailed "cmm" (ExitFailure 1))
- return (next_phase, dflags, maybe_loc, output_fn)
+ return (next_phase, 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 hsc_env _basename _suff input_fn get_output_fn maybe_loc
- | cc_phase `eqPhase` Cc || cc_phase `eqPhase` Ccpp || cc_phase `eqPhase` HCc
- = do let dflags = hsc_dflags hsc_env
+runPhase cc_phase input_fn dflags
+ | cc_phase `eqPhase` Cc || cc_phase `eqPhase` Ccpp || cc_phase `eqPhase` HCc || cc_phase `eqPhase` Cobjc
+ = do
let cc_opts = getOpts dflags opt_c
- hcc = cc_phase `eqPhase` HCc
+ hcc = cc_phase `eqPhase` HCc
- let cmdline_include_paths = includePaths dflags
+ let cmdline_include_paths = includePaths dflags
- -- HC files have the dependent packages stamped into them
- pkgs <- if hcc then liftIO (getHCFilePackages input_fn) else return []
+ -- HC files have the dependent packages stamped into them
+ pkgs <- if hcc then io $ 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 <- liftIO $ getPackageIncludePath dflags pkgs
+ -- 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 <- io $ getPackageIncludePath dflags pkgs
let include_paths = foldr (\ x xs -> "-I" : x : xs) []
- (cmdline_include_paths ++ pkg_include_dirs)
+ (cmdline_include_paths ++ pkg_include_dirs)
- let (md_c_flags, md_regd_c_flags) = machdepCCOpts dflags
- gcc_extra_viac_flags <- liftIO $ getExtraViaCOpts dflags
+ let gcc_extra_viac_flags = extraGccViaCFlags dflags
let pic_c_flags = picCCOpts dflags
- let verb = getVerbFlag dflags
+ let verbFlags = getVerbFlags dflags
-- cc-options are not passed when compiling .hc files. Our
-- hc code doesn't not #include any header files anyway, so these
-- options aren't necessary.
- pkg_extra_cc_opts <-
+ pkg_extra_cc_opts <- io $
if cc_phase `eqPhase` HCc
then return []
- else liftIO $ getPackageExtraCcOpts dflags pkgs
+ else getPackageExtraCcOpts dflags pkgs
#ifdef darwin_TARGET_OS
- pkg_framework_paths <- liftIO $ getPackageFrameworkPath dflags pkgs
+ pkg_framework_paths <- io $ getPackageFrameworkPath dflags pkgs
let cmdline_framework_paths = frameworkPaths dflags
- let framework_paths = map ("-F"++)
+ let framework_paths = map ("-F"++)
(cmdline_framework_paths ++ pkg_framework_paths)
#endif
- let split_objs = dopt Opt_SplitObjs dflags
- split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
- | otherwise = [ ]
-
- 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 <- liftIO $ get_output_fn dflags 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 dopt Opt_ExcessPrecision dflags
- then []
- else [ "-ffloat-store" ]) ++
-#endif
+ let split_objs = dopt Opt_SplitObjs dflags
+ split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
+ | otherwise = [ ]
+
+ let cc_opt | optLevel dflags >= 2 = "-O2"
+ | otherwise = "-O"
+
+ -- Decide next phase
+
+ let next_phase = As
+ output_fn <- phaseOutputFilename next_phase
+
+ let
+ more_hcc_opts =
+ -- 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 platformArch (targetPlatform dflags) == ArchX86 &&
+ not (dopt Opt_ExcessPrecision dflags)
+ then [ "-ffloat-store" ]
+ else []) ++
+
+ -- 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"]
+
+ let gcc_lang_opt | cc_phase `eqPhase` Ccpp = "c++"
+ | cc_phase `eqPhase` Cobjc = "objective-c"
+ | otherwise = "c"
+ io $ 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 gcc_lang_opt
+ , SysTools.FileOption "" input_fn
+ , SysTools.Option "-o"
+ , SysTools.FileOption "" output_fn
+ ]
+ ++ map SysTools.Option (
+ pic_c_flags
+
+ -- Stub files generated for foreign exports references the runIO_closure
+ -- and runNonIO_closure symbols, which are defined in the base package.
+ -- These symbols are imported into the stub.c file via RtsAPI.h, and the
+ -- way we do the import depends on whether we're currently compiling
+ -- the base package or not.
+ ++ (if platformOS (targetPlatform dflags) == OSMinGW32 &&
+ thisPackage dflags == basePackageId
+ then [ "-DCOMPILING_BASE_PACKAGE" ]
+ else [])
- -- 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"]
-
- liftIO $ 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", if cc_phase `eqPhase` Ccpp
- then SysTools.Option "c++"
- else SysTools.Option "c"] ++
- [ SysTools.FileOption "" input_fn
- , SysTools.Option "-o"
- , SysTools.FileOption "" output_fn
- ]
- ++ map SysTools.Option (
- md_c_flags
- ++ pic_c_flags
-
-#if defined(mingw32_TARGET_OS)
- -- Stub files generated for foreign exports references the runIO_closure
- -- and runNonIO_closure symbols, which are defined in the base package.
- -- These symbols are imported into the stub.c file via RtsAPI.h, and the
- -- way we do the import depends on whether we're currently compiling
- -- the base package or not.
- ++ (if thisPackage dflags == basePackageId
- then [ "-DCOMPILING_BASE_PACKAGE" ]
- else [])
-#endif
-
-#ifdef sparc_TARGET_ARCH
-- We only support SparcV9 and better because V8 lacks an atomic CAS
-- instruction. Note that the user can still override this
- -- (e.g., -mcpu=ultrasparc) as GCC picks the "best" -mcpu flag
- -- regardless of the ordering.
+ -- (e.g., -mcpu=ultrasparc) as GCC picks the "best" -mcpu flag
+ -- regardless of the ordering.
--
-- This is a temporary hack.
- ++ ["-mcpu=v9"]
-#endif
- ++ (if hcc && mangle
- then md_regd_c_flags
- else [])
- ++ (if hcc
- then if mangle
- then gcc_extra_viac_flags
- else filter (=="-fwrapv")
- gcc_extra_viac_flags
- -- still want -fwrapv even for unreg'd
- else [])
- ++ (if hcc
- then more_hcc_opts
- else [])
- ++ [ verb, "-S", "-Wimplicit", cc_opt ]
- ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
+ ++ (if platformArch (targetPlatform dflags) == ArchSPARC
+ then ["-mcpu=v9"]
+ else [])
+
+ ++ (if hcc
+ then gcc_extra_viac_flags ++ more_hcc_opts
+ else [])
+ ++ verbFlags
+ ++ [ "-S", "-Wimplicit", cc_opt ]
+ ++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
#ifdef darwin_TARGET_OS
++ framework_paths
#endif
- ++ cc_opts
- ++ split_opt
- ++ include_paths
- ++ pkg_extra_cc_opts
- ))
+ ++ cc_opts
+ ++ split_opt
+ ++ include_paths
+ ++ pkg_extra_cc_opts
+ ))
- return (next_phase, dflags, maybe_loc, output_fn)
+ return (next_phase, output_fn)
- -- ToDo: postprocess the output from gcc
+ -- ToDo: postprocess the output from gcc
-----------------------------------------------------------------------------
--- Mangle phase
-
-runPhase Mangle _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
- = do let dflags = hsc_dflags hsc_env
- 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 <- liftIO $ get_output_fn dflags next_phase maybe_loc
-
- liftIO $ SysTools.runMangle dflags (map SysTools.Option mangler_opts
- ++ [ SysTools.FileOption "" input_fn
- , SysTools.FileOption "" output_fn
- ]
- ++ map SysTools.Option machdep_opts)
+-- Splitting phase
- return (next_phase, dflags, maybe_loc, output_fn)
+runPhase SplitMangle input_fn dflags
+ = do -- tmp_pfx is the prefix used for the split .s files
------------------------------------------------------------------------------
--- Splitting phase
+ split_s_prefix <- io $ SysTools.newTempName dflags "split"
+ let n_files_fn = split_s_prefix
-runPhase SplitMangle _stop hsc_env _basename _suff input_fn _get_output_fn maybe_loc
- = liftIO $
- 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)
- let dflags = hsc_dflags hsc_env
- split_s_prefix <- SysTools.newTempName dflags "split"
- let n_files_fn = split_s_prefix
+ io $ SysTools.runSplit dflags
+ [ SysTools.FileOption "" input_fn
+ , SysTools.FileOption "" split_s_prefix
+ , SysTools.FileOption "" n_files_fn
+ ]
- 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 <- io $ readFile n_files_fn
+ let n_files = read s :: Int
+ dflags' = dflags { splitInfo = Just (split_s_prefix, n_files) }
- -- Save the number of split files for future references
- s <- readFile n_files_fn
- let n_files = read s :: Int
- dflags' = dflags { splitInfo = Just (split_s_prefix, n_files) }
+ setDynFlags dflags'
- -- Remember to delete all these files
- addFilesToClean dflags' [ split_s_prefix ++ "__" ++ show n ++ ".s"
- | n <- [1..n_files]]
+ -- Remember to delete all these files
+ io $ addFilesToClean dflags' [ split_s_prefix ++ "__" ++ show n ++ ".s"
+ | n <- [1..n_files]]
- return (SplitAs, dflags', maybe_loc, "**splitmangle**")
- -- we don't use the filename
+ return (SplitAs, "**splitmangle**")
+ -- we don't use the filename
-----------------------------------------------------------------------------
-- As phase
-runPhase As _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
- = liftIO $
- do let dflags = hsc_dflags hsc_env
+runPhase As input_fn dflags
+ = do
let as_opts = getOpts dflags opt_a
let cmdline_include_paths = includePaths dflags
- output_fn <- get_output_fn dflags StopLn maybe_loc
+ next_phase <- maybeMergeStub
+ output_fn <- phaseOutputFilename next_phase
- -- we create directories for the object file, because it
- -- might be a hierarchical module.
- createDirectoryHierarchy (takeDirectory output_fn)
+ -- we create directories for the object file, because it
+ -- might be a hierarchical module.
+ io $ createDirectoryHierarchy (takeDirectory output_fn)
+
+ io $ SysTools.runAs dflags
+ (map SysTools.Option as_opts
+ ++ [ SysTools.Option ("-I" ++ p) | p <- cmdline_include_paths ]
- let (md_c_flags, _) = machdepCCOpts dflags
- SysTools.runAs dflags
- (map SysTools.Option as_opts
- ++ [ SysTools.Option ("-I" ++ p) | p <- cmdline_include_paths ]
-#ifdef sparc_TARGET_ARCH
-- We only support SparcV9 and better because V8 lacks an atomic CAS
- -- instruction so we have to make sure that the assembler accepts the
+ -- instruction so we have to make sure that the assembler accepts the
-- instruction set. Note that the user can still override this
- -- (e.g., -mcpu=ultrasparc). GCC picks the "best" -mcpu flag
- -- regardless of the ordering.
- --
- -- This is a temporary hack.
- ++ [ SysTools.Option "-mcpu=v9" ]
-#endif
- ++ [ SysTools.Option "-c"
- , SysTools.FileOption "" input_fn
- , SysTools.Option "-o"
- , SysTools.FileOption "" output_fn
- ]
- ++ map SysTools.Option md_c_flags)
+ -- (e.g., -mcpu=ultrasparc). GCC picks the "best" -mcpu flag
+ -- regardless of the ordering.
+ --
+ -- This is a temporary hack.
+ ++ (if platformArch (targetPlatform dflags) == ArchSPARC
+ then [SysTools.Option "-mcpu=v9"]
+ else [])
- return (StopLn, dflags, maybe_loc, output_fn)
+ ++ [ SysTools.Option "-c"
+ , SysTools.FileOption "" input_fn
+ , SysTools.Option "-o"
+ , SysTools.FileOption "" output_fn
+ ])
+ return (next_phase, output_fn)
-runPhase SplitAs _stop hsc_env _basename _suff _input_fn get_output_fn maybe_loc
- = liftIO $ do
- let dflags = hsc_dflags hsc_env
- output_fn <- get_output_fn dflags StopLn maybe_loc
+
+runPhase SplitAs _input_fn dflags
+ = do
+ -- we'll handle the stub_o file in this phase, so don't MergeStub,
+ -- just jump straight to StopLn afterwards.
+ let next_phase = StopLn
+ output_fn <- phaseOutputFilename next_phase
let base_o = dropExtension output_fn
osuf = objectSuf dflags
split_odir = base_o ++ "_" ++ osuf ++ "_split"
- createDirectoryHierarchy split_odir
+ io $ 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 </>) $ filter (osuf `isSuffixOf`) fs
+ fs <- io $ getDirectoryContents split_odir
+ io $ mapM_ removeFile $
+ map (split_odir </>) $ filter (osuf `isSuffixOf`) fs
let as_opts = getOpts dflags opt_a
Just x -> x
let split_s n = split_s_prefix ++ "__" ++ show n <.> "s"
+
+ split_obj :: Int -> FilePath
split_obj n = split_odir </>
takeFileName base_o ++ "__" ++ show n <.> osuf
- let (md_c_flags, _) = machdepCCOpts dflags
let assemble_file n
= SysTools.runAs dflags
(map SysTools.Option as_opts ++
-#ifdef sparc_TARGET_ARCH
+
-- We only support SparcV9 and better because V8 lacks an atomic CAS
-- instruction so we have to make sure that the assembler accepts the
-- instruction set. Note that the user can still override this
-- regardless of the ordering.
--
-- This is a temporary hack.
- [ SysTools.Option "-mcpu=v9" ] ++
-#endif
+ (if platformArch (targetPlatform dflags) == ArchSPARC
+ then [SysTools.Option "-mcpu=v9"]
+ else []) ++
+
[ SysTools.Option "-c"
, SysTools.Option "-o"
, SysTools.FileOption "" (split_obj n)
, SysTools.FileOption "" (split_s n)
- ]
- ++ map SysTools.Option md_c_flags)
+ ])
+
+ io $ mapM_ assemble_file [1..n]
+
+ -- Note [pipeline-split-init]
+ -- If we have a stub file, it may contain constructor
+ -- functions for initialisation of this module. We can't
+ -- simply leave the stub as a separate object file, because it
+ -- will never be linked in: nothing refers to it. We need to
+ -- ensure that if we ever refer to the data in this module
+ -- that needs initialisation, then we also pull in the
+ -- initialisation routine.
+ --
+ -- To that end, we make a DANGEROUS ASSUMPTION here: the data
+ -- that needs to be initialised is all in the FIRST split
+ -- object. See Note [codegen-split-init].
- mapM_ assemble_file [1..n]
+ PipeState{maybe_stub_o} <- getPipeState
+ case maybe_stub_o of
+ Nothing -> return ()
+ Just stub_o -> io $ do
+ tmp_split_1 <- newTempName dflags osuf
+ let split_1 = split_obj 1
+ copyFile split_1 tmp_split_1
+ removeFile split_1
+ joinObjectFiles dflags [tmp_split_1, stub_o] split_1
- -- 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 ]
- ++ map SysTools.Option md_c_flags
- ++ args)
- ld_x_flag | null cLD_X = ""
- | otherwise = "-Wl,-x"
-
- if cLdIsGNULd == "YES"
- then do
- let script = split_odir </> "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])
+ -- join them into a single .o file
+ io $ joinObjectFiles dflags (map split_obj [1..n]) output_fn
+
+ return (next_phase, output_fn)
+
+-----------------------------------------------------------------------------
+-- LlvmOpt phase
+
+runPhase LlvmOpt input_fn dflags
+ = do
+ let lo_opts = getOpts dflags opt_lo
+ let opt_lvl = max 0 (min 2 $ optLevel dflags)
+ -- don't specify anything if user has specified commands. We do this for
+ -- opt but not llc since opt is very specifically for optimisation passes
+ -- only, so if the user is passing us extra options we assume they know
+ -- what they are doing and don't get in the way.
+ let optFlag = if null lo_opts
+ then [SysTools.Option (llvmOpts !! opt_lvl)]
+ else []
+
+ output_fn <- phaseOutputFilename LlvmLlc
+
+ io $ SysTools.runLlvmOpt dflags
+ ([ SysTools.FileOption "" input_fn,
+ SysTools.Option "-o",
+ SysTools.FileOption "" output_fn]
+ ++ optFlag
+ ++ map SysTools.Option lo_opts)
+
+ return (LlvmLlc, output_fn)
+ where
+ -- we always (unless -optlo specified) run Opt since we rely on it to
+ -- fix up some pretty big deficiencies in the code we generate
+ llvmOpts = ["-mem2reg", "-O1", "-O2"]
+
+-----------------------------------------------------------------------------
+-- LlvmLlc phase
+
+runPhase LlvmLlc input_fn dflags
+ = do
+ let lc_opts = getOpts dflags opt_lc
+ opt_lvl = max 0 (min 2 $ optLevel dflags)
+ rmodel | opt_PIC = "pic"
+ | not opt_Static = "dynamic-no-pic"
+ | otherwise = "static"
+
+ output_fn <- phaseOutputFilename LlvmMangle
+
+ io $ SysTools.runLlvmLlc dflags
+ ([ SysTools.Option (llvmOpts !! opt_lvl),
+ SysTools.Option $ "-relocation-model=" ++ rmodel,
+ SysTools.FileOption "" input_fn,
+ SysTools.Option "-o", SysTools.FileOption "" output_fn]
+ ++ map SysTools.Option lc_opts)
+
+ return (LlvmMangle, output_fn)
+ where
+ -- Bug in LLVM at O3 on OSX.
+ llvmOpts = if platformOS (targetPlatform dflags) == OSDarwin
+ then ["-O1", "-O2", "-O2"]
+ else ["-O1", "-O2", "-O3"]
+
+-----------------------------------------------------------------------------
+-- LlvmMangle phase
+
+runPhase LlvmMangle input_fn _dflags
+ = do
+ output_fn <- phaseOutputFilename As
+ io $ llvmFixupAsm input_fn output_fn
+ return (As, output_fn)
+
+-----------------------------------------------------------------------------
+-- merge in stub objects
- return (StopLn, dflags, maybe_loc, output_fn)
+runPhase MergeStub input_fn dflags
+ = do
+ PipeState{maybe_stub_o} <- getPipeState
+ output_fn <- phaseOutputFilename StopLn
+ case maybe_stub_o of
+ Nothing ->
+ panic "runPhase(MergeStub): no stub"
+ Just stub_o -> do
+ io $ joinObjectFiles dflags [input_fn, stub_o] output_fn
+ return (StopLn, output_fn)
-- warning suppression
-runPhase other _stop _dflags _basename _suff _input_fn _get_output_fn _maybe_loc =
+runPhase other _input_fn _dflags =
panic ("runPhase: don't know how to run phase " ++ show other)
+
+maybeMergeStub :: CompPipeline Phase
+maybeMergeStub
+ = do
+ PipeState{maybe_stub_o} <- getPipeState
+ if isJust maybe_stub_o then return MergeStub else return StopLn
+
-----------------------------------------------------------------------------
-- 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
+-- 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 linkBinary below, after linking. I haven't made it
-- 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 :: DynFlags -> FilePath -> [PackageId] -> IO Bool
-runPhase_MoveBinary dflags input_fn dep_packages
+runPhase_MoveBinary :: DynFlags -> FilePath -> IO Bool
+runPhase_MoveBinary dflags input_fn
| WayPar `elem` (wayNames dflags) && not opt_Static =
- panic ("Don't know how to combine PVM wrapper and dynamic wrapper")
+ panic ("Don't know how to combine PVM wrapper and dynamic wrapper")
| WayPar `elem` (wayNames dflags) = do
let sysMan = pgm_sysman dflags
pvm_root <- getEnv "PVM_ROOT"
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
- | not opt_Static =
- case (dynLibLoader dflags) of
- Wrapped wrapmode ->
- do
- let (o_base, o_ext) = splitExtension input_fn
- let wrapped_executable | o_ext == "exe" = (o_base ++ ".dyn") <.> o_ext
- | otherwise = input_fn ++ ".dyn"
- behaviour <- wrapper_behaviour dflags wrapmode dep_packages
-
- -- THINKME isn't this possible to do a bit nicer?
- let behaviour' = concatMap (\x -> if x=='\\' then "\\\\" else [x]) behaviour
- renameFile input_fn wrapped_executable
- let rtsDetails = (getPackageDetails (pkgState dflags) rtsPackageId);
- SysTools.runCc dflags
- ([ SysTools.FileOption "" ((head (libraryDirs rtsDetails)) ++ "/dyn-wrapper.c")
- , SysTools.Option ("-DBEHAVIOUR=\"" ++ behaviour' ++ "\"")
- , SysTools.Option "-o"
- , SysTools.FileOption "" input_fn
- ] ++ map (SysTools.FileOption "-I") (includeDirs rtsDetails))
- return True
- _ -> return True
+ return True
| otherwise = return True
-wrapper_behaviour :: DynFlags -> Maybe [Char] -> [PackageId] -> IO [Char]
-wrapper_behaviour dflags mode dep_packages =
- let seperateBySemiColon strs = tail $ concatMap (';':) strs
- in case mode of
- Nothing -> do
- pkg_lib_paths <- getPackageLibraryPath dflags dep_packages
- return ('H' : (seperateBySemiColon pkg_lib_paths))
- Just s -> do
- allpkg <- getPreloadPackagesAnd dflags dep_packages
- putStrLn (unwords (map (packageIdString . packageConfigId) allpkg))
- return $ 'F':s ++ ';':(seperateBySemiColon (map (packageIdString . packageConfigId) allpkg))
+mkExtraCObj :: DynFlags -> String -> IO FilePath
+mkExtraCObj dflags xs
+ = do cFile <- newTempName dflags "c"
+ oFile <- newTempName dflags "o"
+ writeFile cFile xs
+ let rtsDetails = getPackageDetails (pkgState dflags) rtsPackageId
+ SysTools.runCc dflags
+ ([Option "-c",
+ FileOption "" cFile,
+ Option "-o",
+ FileOption "" oFile] ++
+ map (FileOption "-I") (includeDirs rtsDetails))
+ return oFile
+
+mkExtraObjToLinkIntoBinary :: DynFlags -> [PackageId] -> IO FilePath
+mkExtraObjToLinkIntoBinary dflags dep_packages = do
+ link_info <- getLinkInfo dflags dep_packages
+ mkExtraCObj dflags (showSDoc (vcat [rts_opts_enabled,
+ extra_rts_opts,
+ link_opts link_info]
+ <> char '\n')) -- final newline, to
+ -- keep gcc happy
+
+ where
+ mk_rts_opts_enabled val
+ = vcat [text "#include \"Rts.h\"",
+ text "#include \"RtsOpts.h\"",
+ text "const RtsOptsEnabledEnum rtsOptsEnabled = " <>
+ text val <> semi ]
+
+ rts_opts_enabled = case rtsOptsEnabled dflags of
+ RtsOptsNone -> mk_rts_opts_enabled "RtsOptsNone"
+ RtsOptsSafeOnly -> empty -- The default
+ RtsOptsAll -> mk_rts_opts_enabled "RtsOptsAll"
+
+ extra_rts_opts = case rtsOpts dflags of
+ Nothing -> empty
+ Just opts -> text "char *ghc_rts_opts = " <> text (show opts) <> semi
+
+ link_opts info
+ | isDarwinTarget = empty
+ | isWindowsTarget = empty
+ | otherwise = hcat [
+ text "__asm__(\"\\t.section ", text ghcLinkInfoSectionName,
+ text ",\\\"\\\",@note\\n",
+ text "\\t.ascii \\\"", info', text "\\\"\\n\");" ]
+ where
+ -- we need to escape twice: once because we're inside a C string,
+ -- and again because we're inside an asm string.
+ info' = text $ (escape.escape) info
+
+ escape :: String -> String
+ escape = concatMap (charToC.fromIntegral.ord)
+
+-- The "link info" is a string representing the parameters of the
+-- link. We save this information in the binary, and the next time we
+-- link, if nothing else has changed, we use the link info stored in
+-- the existing binary to decide whether to re-link or not.
+getLinkInfo :: DynFlags -> [PackageId] -> IO String
+getLinkInfo dflags dep_packages = do
+ package_link_opts <- getPackageLinkOpts dflags dep_packages
+#ifdef darwin_TARGET_OS
+ pkg_frameworks <- getPackageFrameworks dflags dep_packages
+#endif
+ extra_ld_inputs <- readIORef v_Ld_inputs
+ let
+ link_info = (package_link_opts,
+#ifdef darwin_TARGET_OS
+ pkg_frameworks,
+#endif
+ rtsOpts dflags,
+ rtsOptsEnabled dflags,
+ dopt Opt_NoHsMain dflags,
+ extra_ld_inputs,
+ getOpts dflags opt_l)
+ --
+ return (show link_info)
-- 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 ${1+\"$@\"}'",
+ "eval 'exec perl -S $0 ${1+\"$@\"}'",
" if $running_under_some_shell;",
"# =!=!=!=!=!=!=!=!=!=!=!",
"# This script is automatically generated: DO NOT EDIT!!!",
l <- hGetLine h
case l of
'/':'*':' ':'G':'H':'C':'_':'P':'A':'C':'K':'A':'G':'E':'S':rest ->
- return (map stringToPackageId (words rest))
+ return (map stringToPackageId (words rest))
_other ->
- return []
+ 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.
+-- 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
linkBinary :: DynFlags -> [FilePath] -> [PackageId] -> IO ()
linkBinary dflags o_files dep_packages = do
- let verb = getVerbFlag dflags
+ let verbFlags = getVerbFlags dflags
output_fn = exeFileName dflags
-- get the full list of packages to link with, by combining the
pkg_lib_paths <- getPackageLibraryPath dflags dep_packages
let pkg_lib_path_opts = concat (map get_pkg_lib_path_opts pkg_lib_paths)
-#ifdef linux_TARGET_OS
+#ifdef elf_OBJ_FORMAT
get_pkg_lib_path_opts l | (dynLibLoader dflags)==SystemDependent && not opt_Static = ["-L" ++ l, "-Wl,-rpath", "-Wl," ++ l]
| otherwise = ["-L" ++ l]
#else
let main_lib | no_hs_main = []
| otherwise = [ "-lHSrtsmain" ]
+ extraLinkObj <- mkExtraObjToLinkIntoBinary dflags dep_packages
+
pkg_link_opts <- getPackageLinkOpts dflags dep_packages
#ifdef darwin_TARGET_OS
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
+ -- reverse because they're added in reverse order from the cmd line
#endif
- -- probably _stub.o files
+ -- probably _stub.o files
extra_ld_inputs <- readIORef v_Ld_inputs
- -- opts from -optl-<blah> (including -l<blah> options)
+ -- opts from -optl-<blah> (including -l<blah> options)
let extra_ld_opts = getOpts dflags opt_l
let ways = wayNames dflags
-- 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 = [
+ debug_opts | WayDebug `elem` ways = [
#if defined(HAVE_LIBBFD)
- "-lbfd", "-liberty"
+ "-lbfd", "-liberty"
#endif
- ]
- | otherwise = []
+ ]
+ | otherwise = []
let
- thread_opts | WayThreaded `elem` ways = [
-#if !defined(mingw32_TARGET_OS) && !defined(freebsd_TARGET_OS) && !defined(haiku_TARGET_OS)
- "-lpthread"
+ thread_opts | WayThreaded `elem` ways = [
+#if !defined(mingw32_TARGET_OS) && !defined(freebsd_TARGET_OS) && !defined(openbsd_TARGET_OS) && !defined(haiku_TARGET_OS)
+ "-lpthread"
#endif
#if defined(osf3_TARGET_OS)
- , "-lexc"
+ , "-lexc"
#endif
- ]
- | otherwise = []
+ ]
+ | otherwise = []
rc_objs <- maybeCreateManifest dflags output_fn
- 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
+ SysTools.runLink dflags (
+ map SysTools.Option verbFlags
+ ++ [ SysTools.Option "-o"
+ , SysTools.FileOption "" output_fn
+ ]
+ ++ map SysTools.Option (
+ []
-#ifdef mingw32_TARGET_OS
-- Permit the linker to auto link _symbol to _imp_symbol.
- -- This lets us link against DLLs without needing an "import library".
- ++ ["-Wl,--enable-auto-import"]
-#endif
- ++ o_files
- ++ extra_ld_inputs
- ++ lib_path_opts
- ++ extra_ld_opts
+ -- This lets us link against DLLs without needing an "import library".
+ ++ (if platformOS (targetPlatform dflags) == OSMinGW32
+ then ["-Wl,--enable-auto-import"]
+ else [])
+
+ ++ o_files
+ ++ extra_ld_inputs
+ ++ lib_path_opts
+ ++ extra_ld_opts
++ rc_objs
#ifdef darwin_TARGET_OS
- ++ framework_path_opts
- ++ framework_opts
+ ++ framework_path_opts
+ ++ framework_opts
#endif
- ++ pkg_lib_path_opts
+ ++ pkg_lib_path_opts
++ main_lib
- ++ pkg_link_opts
+ ++ [extraLinkObj]
+ ++ pkg_link_opts
#ifdef darwin_TARGET_OS
- ++ pkg_framework_path_opts
- ++ pkg_framework_opts
+ ++ pkg_framework_path_opts
+ ++ pkg_framework_opts
#endif
- ++ debug_opts
- ++ thread_opts
- ))
+ ++ debug_opts
+ ++ thread_opts
+ ))
-- parallel only: move binary to another dir -- HWL
- success <- runPhase_MoveBinary dflags output_fn dep_packages
+ success <- runPhase_MoveBinary dflags output_fn
if success then return ()
else ghcError (InstallationError ("cannot move binary"))
exeFileName :: DynFlags -> FilePath
exeFileName dflags
| Just s <- outputFile dflags =
-#if defined(mingw32_HOST_OS)
- if null (takeExtension s)
- then s <.> "exe"
- else s
-#else
- s
-#endif
- | otherwise =
-#if defined(mingw32_HOST_OS)
- "main.exe"
-#else
- "a.out"
-#endif
+ if platformOS (targetPlatform dflags) == OSMinGW32
+ then if null (takeExtension s)
+ then s <.> "exe"
+ else s
+ else s
+ | otherwise =
+ if platformOS (targetPlatform dflags) == OSMinGW32
+ then "main.exe"
+ else "a.out"
maybeCreateManifest
:: DynFlags
let manifest_filename = exe_filename <.> "manifest"
- writeFile manifest_filename $
+ writeFile manifest_filename $
"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n"++
" <assembly xmlns=\"urn:schemas-microsoft-com:asm.v1\" manifestVersion=\"1.0\">\n"++
" <assemblyIdentity version=\"1.0.0.0\"\n"++
let wr_opts = getOpts dflags opt_windres
runWindres dflags $ map SysTools.Option $
- ["--input="++rc_filename,
+ ["--input="++rc_filename,
"--output="++rc_obj_filename,
- "--output-format=coff"]
+ "--output-format=coff"]
++ wr_opts
-- no FileOptions here: windres doesn't like seeing
-- backslashes, apparently
linkDynLib :: DynFlags -> [String] -> [PackageId] -> IO ()
linkDynLib dflags o_files dep_packages = do
- let verb = getVerbFlag dflags
+ let verbFlags = getVerbFlags dflags
let o_file = outputFile dflags
- -- We don't want to link our dynamic libs against the RTS package,
- -- because the RTS lib comes in several flavours and we want to be
- -- able to pick the flavour when a binary is linked.
pkgs <- getPreloadPackagesAnd dflags dep_packages
- -- On Windows we need to link the RTS import lib as Windows does
- -- not allow undefined symbols.
-#if !defined(mingw32_HOST_OS)
- let pkgs_no_rts = filter ((/= rtsPackageId) . packageConfigId) pkgs
-#else
- let pkgs_no_rts = pkgs
-#endif
- let pkg_lib_paths = collectLibraryPaths pkgs_no_rts
+ let pkg_lib_paths = collectLibraryPaths pkgs
let pkg_lib_path_opts = concatMap get_pkg_lib_path_opts pkg_lib_paths
-#ifdef linux_TARGET_OS
+#ifdef elf_OBJ_FORMAT
get_pkg_lib_path_opts l | (dynLibLoader dflags)==SystemDependent && not opt_Static = ["-L" ++ l, "-Wl,-rpath", "-Wl," ++ l]
| otherwise = ["-L" ++ l]
#else
let lib_paths = libraryPaths dflags
let lib_path_opts = map ("-L"++) lib_paths
+ -- We don't want to link our dynamic libs against the RTS package,
+ -- because the RTS lib comes in several flavours and we want to be
+ -- able to pick the flavour when a binary is linked.
+ -- On Windows we need to link the RTS import lib as Windows does
+ -- not allow undefined symbols.
+ -- The RTS library path is still added to the library search path
+ -- above in case the RTS is being explicitly linked in (see #3807).
+#if !defined(mingw32_HOST_OS)
+ let pkgs_no_rts = filter ((/= rtsPackageId) . packageConfigId) pkgs
+#else
+ let pkgs_no_rts = pkgs
+#endif
let pkg_link_opts = collectLinkOpts dflags pkgs_no_rts
- -- probably _stub.o files
+ -- probably _stub.o files
extra_ld_inputs <- readIORef v_Ld_inputs
- let (md_c_flags, _) = machdepCCOpts dflags
let extra_ld_opts = getOpts dflags opt_l
+
+ extraLinkObj <- mkExtraObjToLinkIntoBinary dflags dep_packages
+
#if defined(mingw32_HOST_OS)
-----------------------------------------------------------------------------
-- Making a DLL
-----------------------------------------------------------------------------
let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
- SysTools.runLink dflags
- ([ SysTools.Option verb
- , SysTools.Option "-o"
- , SysTools.FileOption "" output_fn
- , SysTools.Option "-shared"
- ] ++
- [ SysTools.FileOption "-Wl,--out-implib=" (output_fn ++ ".a")
- | dopt Opt_SharedImplib dflags
- ]
- ++ map (SysTools.FileOption "") o_files
- ++ map SysTools.Option (
- md_c_flags
-
+ SysTools.runLink dflags (
+ map SysTools.Option verbFlags
+ ++ [ SysTools.Option "-o"
+ , SysTools.FileOption "" output_fn
+ , SysTools.Option "-shared"
+ ] ++
+ [ SysTools.FileOption "-Wl,--out-implib=" (output_fn ++ ".a")
+ | dopt Opt_SharedImplib dflags
+ ]
+ ++ map (SysTools.FileOption "") o_files
+ ++ map SysTools.Option (
+
-- Permit the linker to auto link _symbol to _imp_symbol
- -- This lets us link against DLLs without needing an "import library"
- ++ ["-Wl,--enable-auto-import"]
-
- ++ extra_ld_inputs
- ++ lib_path_opts
- ++ extra_ld_opts
- ++ pkg_lib_path_opts
- ++ pkg_link_opts
- ))
+ -- This lets us link against DLLs without needing an "import library"
+ ["-Wl,--enable-auto-import"]
+
+ ++ extra_ld_inputs
+ ++ lib_path_opts
+ ++ extra_ld_opts
+ ++ pkg_lib_path_opts
+ ++ [extraLinkObj]
+ ++ pkg_link_opts
+ ))
#elif defined(darwin_TARGET_OS)
-----------------------------------------------------------------------------
-- Making a darwin dylib
-- -undefined dynamic_lookup:
-- Without these options, we'd have to specify the correct dependencies
-- for each of the dylibs. Note that we could (and should) do without this
- -- for all libraries except the RTS; all we need to do is to pass the
- -- correct HSfoo_dyn.dylib files to the link command.
- -- This feature requires Mac OS X 10.3 or later; there is a similar feature,
- -- -flat_namespace -undefined suppress, which works on earlier versions,
- -- but it has other disadvantages.
+ -- for all libraries except the RTS; all we need to do is to pass the
+ -- correct HSfoo_dyn.dylib files to the link command.
+ -- This feature requires Mac OS X 10.3 or later; there is a similar feature,
+ -- -flat_namespace -undefined suppress, which works on earlier versions,
+ -- but it has other disadvantages.
-- -single_module
- -- Build the dynamic library as a single "module", i.e. no dynamic binding
- -- nonsense when referring to symbols from within the library. The NCG
- -- assumes that this option is specified (on i386, at least).
- -- -Wl,-macosx_version_min -Wl,10.3
- -- Tell the linker its safe to assume that the library will run on 10.3 or
- -- later, so that it will not complain about the use of the option
- -- -undefined dynamic_lookup above.
+ -- Build the dynamic library as a single "module", i.e. no dynamic binding
+ -- nonsense when referring to symbols from within the library. The NCG
+ -- assumes that this option is specified (on i386, at least).
-- -install_name
-- Mac OS/X stores the path where a dynamic library is (to be) installed
-- in the library itself. It's called the "install name" of the library.
Nothing -> do
pwd <- getCurrentDirectory
return $ pwd `combine` output_fn
- SysTools.runLink dflags
- ([ SysTools.Option verb
- , SysTools.Option "-dynamiclib"
- , SysTools.Option "-o"
- , SysTools.FileOption "" output_fn
- ]
- ++ map SysTools.Option (
- md_c_flags
- ++ o_files
- ++ [ "-undefined", "dynamic_lookup", "-single_module", "-Wl,-macosx_version_min","-Wl,10.5",
- "-Wl,-read_only_relocs,suppress", "-install_name", instName ]
- ++ extra_ld_inputs
- ++ lib_path_opts
- ++ extra_ld_opts
- ++ pkg_lib_path_opts
- ++ pkg_link_opts
- ))
+ SysTools.runLink dflags (
+ map SysTools.Option verbFlags
+ ++ [ SysTools.Option "-dynamiclib"
+ , SysTools.Option "-o"
+ , SysTools.FileOption "" output_fn
+ ]
+ ++ map SysTools.Option (
+ o_files
+ ++ [ "-undefined", "dynamic_lookup", "-single_module",
+#if !defined(x86_64_TARGET_ARCH)
+ "-Wl,-read_only_relocs,suppress",
+#endif
+ "-install_name", instName ]
+ ++ extra_ld_inputs
+ ++ lib_path_opts
+ ++ extra_ld_opts
+ ++ pkg_lib_path_opts
+ ++ [extraLinkObj]
+ ++ pkg_link_opts
+ ))
#else
-----------------------------------------------------------------------------
-- Making a DSO
-----------------------------------------------------------------------------
let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
-
- SysTools.runLink dflags
- ([ SysTools.Option verb
- , SysTools.Option "-o"
- , SysTools.FileOption "" output_fn
- ]
- ++ map SysTools.Option (
- md_c_flags
- ++ o_files
- ++ [ "-shared", "-Wl,-Bsymbolic" ] -- we need symbolic linking to resolve non-PIC intra-package-relocations
- ++ [ "-Wl,-soname," ++ takeFileName output_fn ] -- set the library soname
- ++ extra_ld_inputs
- ++ lib_path_opts
- ++ extra_ld_opts
- ++ pkg_lib_path_opts
- ++ pkg_link_opts
- ))
+ let buildingRts = thisPackage dflags == rtsPackageId
+ let bsymbolicFlag = if buildingRts
+ then -- -Bsymbolic breaks the way we implement
+ -- hooks in the RTS
+ []
+ else -- we need symbolic linking to resolve
+ -- non-PIC intra-package-relocations
+ ["-Wl,-Bsymbolic"]
+
+ SysTools.runLink dflags (
+ map SysTools.Option verbFlags
+ ++ [ SysTools.Option "-o"
+ , SysTools.FileOption "" output_fn
+ ]
+ ++ map SysTools.Option (
+ o_files
+ ++ [ "-shared" ]
+ ++ bsymbolicFlag
+ -- Set the library soname. We use -h rather than -soname as
+ -- Solaris 10 doesn't support the latter:
+ ++ [ "-Wl,-h," ++ takeFileName output_fn ]
+ ++ extra_ld_inputs
+ ++ lib_path_opts
+ ++ extra_ld_opts
+ ++ pkg_lib_path_opts
+ ++ [extraLinkObj]
+ ++ pkg_link_opts
+ ))
#endif
-- -----------------------------------------------------------------------------
-- Running CPP
pkg_include_dirs <- getPackageIncludePath dflags []
let include_paths = foldr (\ x xs -> "-I" : x : xs) []
- (cmdline_include_paths ++ pkg_include_dirs)
+ (cmdline_include_paths ++ pkg_include_dirs)
- let verb = getVerbFlag dflags
+ let verbFlags = getVerbFlags dflags
let cc_opts
- | not include_cc_opts = []
- | otherwise = (optc ++ md_c_flags)
- where
- optc = getOpts dflags opt_c
- (md_c_flags, _) = machdepCCOpts dflags
+ | include_cc_opts = getOpts dflags opt_c
+ | otherwise = []
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 :: String
-cHaskell1Version = "5" -- i.e., Haskell 98
+ | 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 ( map SysTools.Option verbFlags
+ ++ map SysTools.Option include_paths
+ ++ map SysTools.Option hsSourceCppOpts
+ ++ map SysTools.Option target_defs
+ ++ map SysTools.Option hscpp_opts
+ ++ map SysTools.Option cc_opts
+ ++ [ 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
+ ])
hsSourceCppOpts :: [String]
-- Default CPP defines in Haskell source
hsSourceCppOpts =
- [ "-D__HASKELL1__="++cHaskell1Version
- , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
- , "-D__HASKELL98__"
- , "-D__CONCURRENT_HASKELL__"
- ]
+ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
+
+-- ---------------------------------------------------------------------------
+-- join object files into a single relocatable object file, using ld -r
+
+joinObjectFiles :: DynFlags -> [FilePath] -> FilePath -> IO ()
+joinObjectFiles dflags o_files output_fn = do
+ let ld_r args = SysTools.runLink dflags ([
+ SysTools.Option "-nostdlib",
+ SysTools.Option "-nodefaultlibs",
+ SysTools.Option "-Wl,-r",
+ SysTools.Option ld_build_id,
+ SysTools.Option ld_x_flag,
+ SysTools.Option "-o",
+ SysTools.FileOption "" output_fn ]
+ ++ args)
+ ld_x_flag | null cLD_X = ""
+ | otherwise = "-Wl,-x"
+
+ -- suppress the generation of the .note.gnu.build-id section,
+ -- which we don't need and sometimes causes ld to emit a
+ -- warning:
+ ld_build_id | cLdHasBuildId == "YES" = "-Wl,--build-id=none"
+ | otherwise = ""
+
+ if cLdIsGNULd == "YES"
+ then do
+ script <- newTempName dflags "ldscript"
+ writeFile script $ "INPUT(" ++ unwords o_files ++ ")"
+ ld_r [SysTools.FileOption "" script]
+ else do
+ ld_r (map (SysTools.FileOption "") o_files)
-- -----------------------------------------------------------------------------
-- Misc.
hscNextPhase :: DynFlags -> HscSource -> HscTarget -> Phase
hscNextPhase _ HsBootFile _ = StopLn
-hscNextPhase dflags _ hsc_lang =
+hscNextPhase dflags _ 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 _ 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
+ HscC -> HCc
+ HscAsm | dopt Opt_SplitObjs dflags -> SplitMangle
+ | otherwise -> As
+ HscLlvm -> LlvmOpt
+ HscNothing -> StopLn
+ HscInterpreted -> StopLn
projects / ghc-hetmet.git / blobdiff