{-# OPTIONS -fno-cse #-}
+{-# LANGUAGE NamedFieldPuns #-}
-- -fno-cse is needed for GLOBAL_VAR's to behave properly
-----------------------------------------------------------------------------
import FastString
import LlvmCodeGen ( llvmFixupAsm )
import MonadUtils
+import Platform
--- import Data.Either
import Exception
import Data.IORef ( readIORef )
--- import GHC.Exts ( Int(..) )
import System.Directory
import System.FilePath
import System.IO
import Data.List ( isSuffixOf )
import Data.Maybe
import System.Environment
+import Data.Char
-- ---------------------------------------------------------------------------
-- Pre-process
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-}
+ Nothing Temporary Nothing{-no ModLocation-} Nothing{-no stub-}
-- ---------------------------------------------------------------------------
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
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 <- 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)
-- 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 :: HscEnv -> Module -> ModLocation -> IO 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
+-- 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).
- _ <- runPipeline StopLn hsc_env (stub_c,Nothing) Nothing
- (SpecificFile stub_o) Nothing{-no ModLocation-}
+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)
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
( _, out_file) <- runPipeline stop_phase' hsc_env
(src, mb_phase) Nothing output
- Nothing{-no ModLocation-}
+ Nothing{-no ModLocation-} Nothing
return out_file
-> Maybe FilePath -- ^ original basename (if different from ^^^)
-> PipelineOutput -- ^ Output filename
-> Maybe ModLocation -- ^ A ModLocation, if this is a Haskell module
+ -> 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
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
copyWithHeader dflags msg line_prag output_fn final_fn
return (dflags', final_fn)
+-- -----------------------------------------------------------------------------
+-- 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
-
-pipeLoop :: HscEnv -> Phase -> Phase
- -> FilePath -> String -> Suffix
- -> (DynFlags -> Phase -> Maybe ModLocation -> IO FilePath)
- -> Maybe ModLocation
- -> IO (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)
-
- | not (phase `happensBefore` 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 ++
+ -> panic ("pipeLoop: at phase " ++ show phase ++
" but I wanted to stop at phase " ++ show stop_phase)
- | otherwise
- = do debugTraceMsg (hsc_dflags hsc_env) 4
+ | otherwise
+ -> do io $ debugTraceMsg (hsc_dflags hsc_env) 4
(ptext (sLit "Running phase") <+> ppr phase)
- (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
+ dflags <- getDynFlags
+ (next_phase, output_fn) <- runPhase phase input_fn dflags
+ pipeLoop next_phase output_fn
+
+-- -----------------------------------------------------------------------------
+-- 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
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
keep_bc = dopt Opt_KeepLlvmFiles dflags
- myPhaseInputExt HCc = hcsuf
- myPhaseInputExt StopLn = osuf
- myPhaseInputExt other = phaseInputExt other
+ 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
- StopLn -> True
- Mangle | keep_raw_s -> True
As | keep_s -> True
LlvmOpt | keep_bc -> True
HCc | keep_hc -> True
-- 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
- -> 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
- -> IO (Phase, -- next phase
- DynFlags, -- new dynamic flags
- Maybe ModLocation, -- the ModLocation, if we have one
- FilePath) -- output filename
+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
-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 <- 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
]
- 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
-runPhase (Cpp sf) _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
- = do let dflags0 = hsc_dflags hsc_env
- src_opts <- getOptionsFromFile dflags0 input_fn
+runPhase (Cpp sf) input_fn dflags0
+ = do
+ src_opts <- io $ getOptionsFromFile dflags0 input_fn
(dflags1, unhandled_flags, warns)
- <- parseDynamicNoPackageFlags dflags0 src_opts
- checkProcessArgsResult unhandled_flags
+ <- 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) $ handleFlagWarnings dflags1 warns
+ unless (dopt Opt_Pp dflags1) $ io $ handleFlagWarnings dflags1 warns
-- no need to preprocess CPP, just pass input file along
-- to the next phase of the pipeline.
- return (HsPp sf, dflags1, maybe_loc, input_fn)
+ return (HsPp sf, input_fn)
else do
- output_fn <- get_output_fn dflags1 (HsPp sf) maybe_loc
- doCpp dflags1 True{-raw-} False{-no CC opts-} input_fn output_fn
+ 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 <- getOptionsFromFile dflags0 output_fn
+ src_opts <- io $ getOptionsFromFile dflags0 output_fn
(dflags2, unhandled_flags, warns)
- <- parseDynamicNoPackageFlags dflags0 src_opts
- unless (dopt Opt_Pp dflags2) $ handleFlagWarnings dflags2 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
- checkProcessArgsResult unhandled_flags
- return (HsPp sf, dflags2, maybe_loc, output_fn)
+ setDynFlags dflags2
+
+ return (HsPp sf, output_fn)
-------------------------------------------------------------------------------
-- 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)
+ return (Hsc sf, input_fn)
else do
let hspp_opts = getOpts dflags opt_F
- let orig_fn = basename <.> suff
- output_fn <- get_output_fn dflags (Hsc sf) maybe_loc
- SysTools.runPp dflags
+ 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
)
-- re-read pragmas now that we've parsed the file (see #3674)
- src_opts <- getOptionsFromFile dflags output_fn
+ src_opts <- io $ getOptionsFromFile dflags output_fn
(dflags1, unhandled_flags, warns)
- <- parseDynamicNoPackageFlags dflags src_opts
- handleFlagWarnings dflags1 warns
- checkProcessArgsResult unhandled_flags
+ <- io $ parseDynamicNoPackageFlags dflags src_opts
+ setDynFlags dflags1
+ io $ checkProcessArgsResult unhandled_flags
+ io $ handleFlagWarnings dflags1 warns
- return (Hsc sf, dflags1, maybe_loc, output_fn)
+ 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
+runPhase (Hsc src_flavour) input_fn dflags0
= do -- normal Hsc mode, not mkdependHS
- let dflags0 = hsc_dflags hsc_env
+
+ 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
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 <- getCoreModuleName input_fn
-- 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
+ location1 <- io $ mkHomeModLocation2 dflags mod_name basename suff
-- Boot-ify it if necessary
let location2 | isHsBoot src_flavour = addBootSuffixLocn location1
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 <- getModificationTime (basename <.> suff)
+ src_timestamp <- io $ getModificationTime (basename <.> suff)
let force_recomp = dopt Opt_ForceRecomp dflags
- hsc_lang = hscMaybeAdjustTarget dflags stop src_flavour (hscTarget dflags)
- source_unchanged <-
+ 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
-- get the DynFlags
let next_phase = hscNextPhase dflags src_flavour hsc_lang
- output_fn <- get_output_fn dflags next_phase (Just location4)
+ 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'}
+ setDynFlags dflags'
+ PipeState{hsc_env=hsc_env'} <- getPipeState
-- Tell the finder cache about this module
- mod <- addHomeModuleToFinder hsc_env' mod_name location4
+ mod <- io $ addHomeModuleToFinder hsc_env' mod_name location4
-- Make the ModSummary to hand to hscMain
let
ms_srcimps = src_imps }
-- run the compiler!
- result <- hscCompileOneShot hsc_env'
+ result <- io $ hscCompileOneShot hsc_env'
mod_summary source_unchanged
Nothing -- No iface
Nothing -- No "module i of n" progress info
case result of
HscNoRecomp
- -> do 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
+ -> 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) $
- 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 <- get_output_fn dflags Cmm maybe_loc
- 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)
+ PipeEnv{src_basename} <- getPipeEnv
+ let hsc_lang = hscTarget dflags
+
let next_phase = hscNextPhase dflags HsSrcFile hsc_lang
- output_fn <- get_output_fn dflags next_phase maybe_loc
+
+ 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'}
+ extCoreName = src_basename ++ ".hcr" }
- hscCompileCmmFile 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))
- 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
+runPhase cc_phase input_fn dflags
| cc_phase `eqPhase` Cc || cc_phase `eqPhase` Ccpp || cc_phase `eqPhase` HCc || cc_phase `eqPhase` Cobjc
- = do let dflags = hsc_dflags hsc_env
+ = 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 []
+ 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 <- getPackageIncludePath dflags pkgs
+ pkg_include_dirs <- io $ 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
- gcc_extra_viac_flags <- 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 getPackageExtraCcOpts dflags pkgs
#ifdef darwin_TARGET_OS
- pkg_framework_paths <- getPackageFrameworkPath dflags pkgs
+ pkg_framework_paths <- io $ getPackageFrameworkPath dflags pkgs
let cmdline_framework_paths = frameworkPaths dflags
let framework_paths = map ("-F"++)
(cmdline_framework_paths ++ pkg_framework_paths)
-- Decide next phase
- let mangle = dopt Opt_DoAsmMangling dflags
- next_phase
- | hcc && mangle = Mangle
- | otherwise = As
- output_fn <- get_output_fn dflags next_phase maybe_loc
+ let next_phase = As
+ output_fn <- phaseOutputFilename next_phase
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
+ (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.
let gcc_lang_opt | cc_phase `eqPhase` Ccpp = "c++"
| cc_phase `eqPhase` Cobjc = "objective-c"
| otherwise = "c"
- SysTools.runCc dflags (
+ 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
, SysTools.FileOption "" output_fn
]
++ map SysTools.Option (
- md_c_flags
- ++ pic_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
+ ++ (if platformOS (targetPlatform dflags) == OSMinGW32 &&
+ 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.
--
-- 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 platformArch (targetPlatform dflags) == ArchSPARC
+ then ["-mcpu=v9"]
+ else [])
+
++ (if hcc
- then more_hcc_opts
+ then gcc_extra_viac_flags ++ more_hcc_opts
else [])
- ++ [ verb, "-S", "-Wimplicit", cc_opt ]
+ ++ verbFlags
+ ++ [ "-S", "-Wimplicit", cc_opt ]
++ [ "-D__GLASGOW_HASKELL__="++cProjectVersionInt ]
#ifdef darwin_TARGET_OS
++ framework_paths
++ pkg_extra_cc_opts
))
- return (next_phase, dflags, maybe_loc, output_fn)
+ return (next_phase, output_fn)
-- 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 <- get_output_fn dflags 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 hsc_env _basename _suff input_fn _get_output_fn maybe_loc
+runPhase SplitMangle input_fn dflags
= 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"
+
+ split_s_prefix <- io $ SysTools.newTempName dflags "split"
let n_files_fn = split_s_prefix
- SysTools.runSplit dflags
+ io $ 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
+ s <- io $ 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]]
+ io $ addFilesToClean dflags' [ split_s_prefix ++ "__" ++ show n ++ ".s"
+ | n <- [1..n_files]]
- return (SplitAs, dflags', maybe_loc, "**splitmangle**")
+ 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
- = 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)
+ io $ createDirectoryHierarchy (takeDirectory output_fn)
- let (md_c_flags, _) = machdepCCOpts dflags
- SysTools.runAs dflags
+ io $ 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 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.FileOption "" input_fn
, SysTools.Option "-o"
, SysTools.FileOption "" output_fn
- ]
- ++ map SysTools.Option md_c_flags)
+ ])
- return (StopLn, dflags, maybe_loc, output_fn)
+ return (next_phase, output_fn)
-runPhase SplitAs _stop hsc_env _basename _suff _input_fn get_output_fn maybe_loc
+runPhase SplitAs _input_fn dflags
= do
- let dflags = hsc_dflags hsc_env
- output_fn <- get_output_fn dflags StopLn maybe_loc
+ -- 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)
-
- mapM_ assemble_file [1..n]
+ ])
+
+ 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].
+
+ 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
-- join them into a single .o file
- joinObjectFiles dflags (map split_obj [1..n]) output_fn
+ io $ joinObjectFiles dflags (map split_obj [1..n]) output_fn
- return (StopLn, dflags, maybe_loc, output_fn)
+ return (next_phase, output_fn)
-----------------------------------------------------------------------------
-- LlvmOpt phase
-runPhase LlvmOpt _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
+runPhase LlvmOpt input_fn dflags
= do
- let dflags = hsc_dflags hsc_env
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
then [SysTools.Option (llvmOpts !! opt_lvl)]
else []
- output_fn <- get_output_fn dflags LlvmLlc maybe_loc
+ output_fn <- phaseOutputFilename LlvmLlc
- SysTools.runLlvmOpt dflags
+ io $ SysTools.runLlvmOpt dflags
([ SysTools.FileOption "" input_fn,
SysTools.Option "-o",
SysTools.FileOption "" output_fn]
++ optFlag
++ map SysTools.Option lo_opts)
- return (LlvmLlc, dflags, maybe_loc, output_fn)
+ 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 _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
+runPhase LlvmLlc input_fn dflags
= do
- let dflags = hsc_dflags hsc_env
let lc_opts = getOpts dflags opt_lc
- let opt_lvl = max 0 (min 2 $ optLevel dflags)
-#if darwin_TARGET_OS
- let nphase = LlvmMangle
-#else
- let nphase = As
-#endif
- let rmodel | opt_PIC = "pic"
+ opt_lvl = max 0 (min 2 $ optLevel dflags)
+ rmodel | opt_PIC = "pic"
| not opt_Static = "dynamic-no-pic"
| otherwise = "static"
- output_fn <- get_output_fn dflags nphase maybe_loc
+ output_fn <- phaseOutputFilename LlvmMangle
- SysTools.runLlvmLlc dflags
+ 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 (nphase, dflags, maybe_loc, output_fn)
+ return (LlvmMangle, output_fn)
where
-#if darwin_TARGET_OS
- llvmOpts = ["-O1", "-O2", "-O2"]
-#else
- llvmOpts = ["-O1", "-O2", "-O3"]
-#endif
-
+ -- 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 _stop hsc_env _basename _suff input_fn get_output_fn maybe_loc
+runPhase LlvmMangle input_fn _dflags
= do
- let dflags = hsc_dflags hsc_env
- output_fn <- get_output_fn dflags As maybe_loc
- llvmFixupAsm input_fn output_fn
- return (As, dflags, maybe_loc, output_fn)
+ output_fn <- phaseOutputFilename As
+ io $ llvmFixupAsm input_fn output_fn
+ return (As, output_fn)
+-----------------------------------------------------------------------------
+-- merge in stub objects
+
+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
return True
| otherwise = return True
-mkExtraCObj :: DynFlags -> [String] -> IO FilePath
+mkExtraCObj :: DynFlags -> String -> IO FilePath
mkExtraCObj dflags xs
= do cFile <- newTempName dflags "c"
oFile <- newTempName dflags "o"
- writeFile cFile $ unlines xs
+ writeFile cFile xs
let rtsDetails = getPackageDetails (pkgState dflags) rtsPackageId
- (md_c_flags, _) = machdepCCOpts dflags
SysTools.runCc dflags
([Option "-c",
FileOption "" cFile,
Option "-o",
FileOption "" oFile] ++
- map (FileOption "-I") (includeDirs rtsDetails) ++
- map Option md_c_flags)
+ map (FileOption "-I") (includeDirs rtsDetails))
return oFile
-mkRtsOptionsLevelObj :: DynFlags -> IO [FilePath]
-mkRtsOptionsLevelObj dflags
- = do let mkRtsEnabledObj val
- = do fn <- mkExtraCObj dflags
- ["#include \"Rts.h\"",
- "#include \"RtsOpts.h\"",
- "const rtsOptsEnabledEnum rtsOptsEnabled = "
- ++ val ++ ";"]
- return [fn]
- case rtsOptsEnabled dflags of
- RtsOptsNone -> mkRtsEnabledObj "rtsOptsNone"
- RtsOptsSafeOnly -> return [] -- The default
- RtsOptsAll -> mkRtsEnabledObj "rtsOptsAll"
+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
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
let no_hs_main = dopt Opt_NoHsMain dflags
let main_lib | no_hs_main = []
| otherwise = [ "-lHSrtsmain" ]
- rtsEnabledObj <- mkRtsOptionsLevelObj dflags
- rtsOptsObj <- case rtsOpts dflags of
- Just opts ->
- do fn <- mkExtraCObj dflags
- -- We assume that the Haskell "show" does
- -- the right thing here
- ["char *ghc_rts_opts = " ++ show opts ++ ";"]
- return [fn]
- Nothing -> return []
+
+ extraLinkObj <- mkExtraObjToLinkIntoBinary dflags dep_packages
pkg_link_opts <- getPackageLinkOpts dflags dep_packages
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 verbFlags
+ ++ [ SysTools.Option "-o"
+ , SysTools.FileOption "" output_fn
+ ]
++ map SysTools.Option (
- md_c_flags
+ []
-#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
+ ++ (if platformOS (targetPlatform dflags) == OSMinGW32
+ then ["-Wl,--enable-auto-import"]
+ else [])
+
++ o_files
++ extra_ld_inputs
++ lib_path_opts
#endif
++ pkg_lib_path_opts
++ main_lib
- ++ rtsEnabledObj
- ++ rtsOptsObj
+ ++ [extraLinkObj]
++ pkg_link_opts
#ifdef darwin_TARGET_OS
++ pkg_framework_path_opts
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
+ if platformOS (targetPlatform dflags) == OSMinGW32
+ then if null (takeExtension s)
+ then s <.> "exe"
+ else s
+ else s
| otherwise =
-#if defined(mingw32_HOST_OS)
- "main.exe"
-#else
- "a.out"
-#endif
+ if platformOS (targetPlatform dflags) == OSMinGW32
+ then "main.exe"
+ else "a.out"
maybeCreateManifest
:: DynFlags
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
pkgs <- getPreloadPackagesAnd dflags dep_packages
-- 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
- rtsEnabledObj <- mkRtsOptionsLevelObj dflags
+ extraLinkObj <- mkExtraObjToLinkIntoBinary dflags dep_packages
#if defined(mingw32_HOST_OS)
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
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
- ]
+ 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 (
- md_c_flags
-- 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"]
+ ["-Wl,--enable-auto-import"]
++ extra_ld_inputs
++ lib_path_opts
++ extra_ld_opts
++ pkg_lib_path_opts
- ++ rtsEnabledObj
+ ++ [extraLinkObj]
++ pkg_link_opts
))
#elif defined(darwin_TARGET_OS)
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
- ]
+ SysTools.runLink dflags (
+ map SysTools.Option verbFlags
+ ++ [ SysTools.Option "-dynamiclib"
+ , SysTools.Option "-o"
+ , SysTools.FileOption "" output_fn
+ ]
++ map SysTools.Option (
- md_c_flags
- ++ o_files
+ o_files
++ [ "-undefined", "dynamic_lookup", "-single_module",
#if !defined(x86_64_TARGET_ARCH)
"-Wl,-read_only_relocs,suppress",
++ lib_path_opts
++ extra_ld_opts
++ pkg_lib_path_opts
- ++ rtsEnabledObj
+ ++ [extraLinkObj]
++ pkg_link_opts
))
#else
-- non-PIC intra-package-relocations
["-Wl,-Bsymbolic"]
- SysTools.runLink dflags
- ([ SysTools.Option verb
- , SysTools.Option "-o"
- , SysTools.FileOption "" output_fn
- ]
+ SysTools.runLink dflags (
+ map SysTools.Option verbFlags
+ ++ [ SysTools.Option "-o"
+ , SysTools.FileOption "" output_fn
+ ]
++ map SysTools.Option (
- md_c_flags
- ++ o_files
+ o_files
++ [ "-shared" ]
++ bsymbolicFlag
-- Set the library soname. We use -h rather than -soname as
++ lib_path_opts
++ extra_ld_opts
++ pkg_lib_path_opts
- ++ rtsEnabledObj
+ ++ [extraLinkObj]
++ pkg_link_opts
))
#endif
let include_paths = foldr (\ x xs -> "-I" : x : xs) []
(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)
-- 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]
+ cpp_prog ( map SysTools.Option verbFlags
++ map SysTools.Option include_paths
++ map SysTools.Option hsSourceCppOpts
++ map SysTools.Option target_defs
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 ]
- ++ map SysTools.Option md_c_flags
++ args)
+
ld_x_flag | null cLD_X = ""
| otherwise = "-Wl,-x"
- (md_c_flags, _) = machdepCCOpts dflags
-
+ -- 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"
HscLlvm -> LlvmOpt
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
projects / ghc-hetmet.git / blobdiff