--
-- GHC Driver
--
--- (c) Simon Marlow 2000
+-- (c) The University of Glasgow 2002
--
-----------------------------------------------------------------------------
module DriverPipeline (
- -- interfaces for the batch-mode driver
- GhcMode(..), getGhcMode, v_GhcMode,
- genPipeline, runPipeline, pipeLoop,
+ -- Interfaces for the batch-mode driver
+ runPipeline, staticLink,
- -- interfaces for the compilation manager (interpreted/batch-mode)
- preprocess, compile, CompResult(..),
+ -- Interfaces for the compilation manager (interpreted/batch-mode)
+ preprocess,
+ compile, CompResult(..),
+ link,
- -- batch-mode linking interface
- doLink,
-- DLL building
doMkDLL
) where
#include "HsVersions.h"
import Packages
-import CmTypes
import GetImports
import DriverState
import DriverUtil
import DriverMkDepend
import DriverPhases
import DriverFlags
-import SysTools ( newTempName, addFilesToClean, getSysMan, unDosifyPath )
+import SysTools ( newTempName, addFilesToClean, getSysMan, copy )
import qualified SysTools
import HscMain
import Finder
import Config
import Panic
import Util
+import BasicTypes ( SuccessFlag(..) )
+import Maybes ( expectJust )
+import ParserCoreUtils ( getCoreModuleName )
+
+import EXCEPTION
+import DATA_IOREF ( readIORef, writeIORef )
+
+#ifdef GHCI
import Time ( getClockTime )
+#endif
import Directory
import System
-import IOExts
-import Exception
-
import IO
import Monad
import Maybe
-import PackedString
-import MatchPS
------------------------------------------------------------------------------
--- GHC modes of operation
-
-modeFlag :: String -> Maybe GhcMode
-modeFlag "-M" = Just $ DoMkDependHS
-modeFlag "--mk-dll" = Just $ DoMkDLL
-modeFlag "-E" = Just $ StopBefore Hsc
-modeFlag "-C" = Just $ StopBefore HCc
-modeFlag "-S" = Just $ StopBefore As
-modeFlag "-c" = Just $ StopBefore Ln
-modeFlag "--make" = Just $ DoMake
-modeFlag "--interactive" = Just $ DoInteractive
-modeFlag _ = Nothing
-
-getGhcMode :: [String]
- -> IO ( [String] -- rest of command line
- , GhcMode
- , String -- "GhcMode" flag
- )
-getGhcMode flags
- = case my_partition modeFlag flags of
- ([] , rest) -> return (rest, DoLink, "") -- default is to do linking
- ([(flag,one)], rest) -> return (rest, one, flag)
- (_ , _ ) ->
- throwDyn (UsageError
- "only one of the flags -M, -E, -C, -S, -c, --make, --interactive, -mk-dll is allowed")
+-- ---------------------------------------------------------------------------
+-- Pre-process
------------------------------------------------------------------------------
--- genPipeline
+-- Just preprocess a file, put the result in a temp. file (used by the
+-- compilation manager during the summary phase).
+
+preprocess :: FilePath -> IO FilePath
+preprocess filename =
+ ASSERT(haskellish_src_file filename)
+ do restoreDynFlags -- Restore to state of last save
+ runPipeline (StopBefore Hsc) ("preprocess")
+ False{-temporary output file-}
+ Nothing{-no specific output file-}
+ filename
+ Nothing{-no ModLocation-}
+
+-- ---------------------------------------------------------------------------
+-- Compile
+
+-- Compile a single module, under the control of the compilation manager.
--
--- Herein is all the magic about which phases to run in which order, whether
--- the intermediate files should be in TMPDIR or in the current directory,
--- what the suffix of the intermediate files should be, etc.
-
--- The following compilation pipeline algorithm is fairly hacky. A
--- better way to do this would be to express the whole compilation as a
--- data flow DAG, where the nodes are the intermediate files and the
--- edges are the compilation phases. This framework would also work
--- nicely if a haskell dependency generator was included in the
--- driver.
-
--- It would also deal much more cleanly with compilation phases that
--- generate multiple intermediates, (eg. hsc generates .hc, .hi, and
--- possibly stub files), where some of the output files need to be
--- processed further (eg. the stub files need to be compiled by the C
--- compiler).
-
--- A cool thing to do would then be to execute the data flow graph
--- concurrently, automatically taking advantage of extra processors on
--- the host machine. For example, when compiling two Haskell files
--- where one depends on the other, the data flow graph would determine
--- that the C compiler from the first compilation can be overlapped
--- with the hsc compilation for the second file.
-
-data IntermediateFileType
- = Temporary
- | Persistent
- deriving (Eq, Show)
-
-genPipeline
- :: GhcMode -- when to stop
- -> String -- "stop after" flag (for error messages)
- -> Bool -- True => output is persistent
- -> HscLang -- preferred output language for hsc
- -> (FilePath, String) -- original filename & its suffix
- -> IO [ -- list of phases to run for this file
- (Phase,
- IntermediateFileType, -- keep the output from this phase?
- String) -- output file suffix
- ]
-
-genPipeline todo stop_flag persistent_output lang (filename,suffix)
- = do
- split <- readIORef v_Split_object_files
- mangle <- readIORef v_Do_asm_mangling
- keep_hc <- readIORef v_Keep_hc_files
- keep_raw_s <- readIORef v_Keep_raw_s_files
- keep_s <- readIORef v_Keep_s_files
- osuf <- readIORef v_Object_suf
- hcsuf <- readIORef v_HC_suf
+-- 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.
- let
- ----------- ----- ---- --- -- -- - - -
- start = startPhase suffix
+-- The driver sits between 'compile' and 'hscMain', translating calls
+-- to the former into calls to the latter, and results from the latter
+-- into results from the former. It does things like preprocessing
+-- the .hs file if necessary, and compiling up the .stub_c files to
+-- generate Linkables.
+
+-- NB. No old interface can also mean that the source has changed.
+
+compile :: GhciMode -- distinguish batch from interactive
+ -> Module
+ -> ModLocation
+ -> Bool -- True <=> source unchanged
+ -> Bool -- True <=> have object
+ -> Maybe ModIface -- old interface, if available
+ -> HomePackageTable -- For home-module stuff
+ -> PersistentCompilerState -- persistent compiler state
+ -> IO CompResult
+
+data CompResult
+ = CompOK PersistentCompilerState -- Updated PCS
+ ModDetails -- New details
+ ModIface -- New iface
+ (Maybe Linkable) -- New code; Nothing => compilation was not reqd
+ -- (old code is still valid)
- -- special case for mkdependHS: .hspp files go through MkDependHS
- start_phase | todo == DoMkDependHS && start == Hsc = MkDependHS
- | otherwise = start
+ | CompErrs PersistentCompilerState -- Updated PCS
- haskellish = haskellish_suffix suffix
- cish = cish_suffix suffix
- -- for a .hc file we need to force lang to HscC
- real_lang | start_phase == HCc || start_phase == Mangle = HscC
- | otherwise = lang
+compile ghci_mode this_mod location
+ source_unchanged have_object
+ old_iface hpt pcs = do
- let
- ----------- ----- ---- --- -- -- - - -
- pipeline
- | todo == DoMkDependHS = [ Unlit, Cpp, MkDependHS ]
-
- | haskellish =
- case real_lang of
- HscC | split && mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle,
- SplitMangle, SplitAs ]
- | mangle -> [ Unlit, Cpp, Hsc, HCc, Mangle, As ]
- | split -> not_valid
- | otherwise -> [ Unlit, Cpp, Hsc, HCc, As ]
-
- HscAsm | split -> [ Unlit, Cpp, Hsc, SplitMangle, SplitAs ]
- | otherwise -> [ Unlit, Cpp, Hsc, As ]
-
- HscJava | split -> not_valid
- | otherwise -> error "not implemented: compiling via Java"
-#ifdef ILX
- HscILX | split -> not_valid
- | otherwise -> [ Unlit, Cpp, Hsc, Ilx2Il, Ilasm ]
+ dyn_flags <- restoreDynFlags -- Restore to the state of the last save
+
+ showPass dyn_flags
+ (showSDoc (text "Compiling" <+> ppr this_mod))
+
+ let verb = verbosity dyn_flags
+ let input_fn = expectJust "compile:hs" (ml_hs_file location)
+ let input_fnpp = expectJust "compile:hspp" (ml_hspp_file location)
+ let mod_name = moduleName this_mod
+
+ when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp))
+
+ opts <- getOptionsFromSource input_fnpp
+ processArgs dynamic_flags opts []
+ dyn_flags <- getDynFlags
+
+ let (basename, _) = splitFilename input_fn
+
+ -- figure out what lang we're generating
+ hsc_lang <- hscMaybeAdjustLang (hscLang dyn_flags)
+ -- figure out what the next phase should be
+ next_phase <- hscNextPhase hsc_lang
+ -- figure out what file to generate the output into
+ get_output_fn <- genOutputFilenameFunc False Nothing next_phase basename
+ output_fn <- get_output_fn next_phase (Just location)
+
+ let dyn_flags' = dyn_flags { hscLang = hsc_lang,
+ hscOutName = output_fn,
+ hscStubCOutName = basename ++ "_stub.c",
+ hscStubHOutName = basename ++ "_stub.h",
+ extCoreName = basename ++ ".hcr" }
+
+ -- -no-recomp should also work with --make
+ do_recomp <- readIORef v_Recomp
+ let source_unchanged' = source_unchanged && do_recomp
+ hsc_env = HscEnv { hsc_mode = ghci_mode,
+ hsc_dflags = dyn_flags',
+ hsc_HPT = hpt }
+
+ -- run the compiler
+ hsc_result <- hscMain hsc_env pcs this_mod location
+ source_unchanged' have_object old_iface
+
+ case hsc_result of
+ HscFail pcs -> return (CompErrs pcs)
+
+ HscNoRecomp pcs details iface -> return (CompOK pcs details iface Nothing)
+
+ HscRecomp pcs details iface
+ stub_h_exists stub_c_exists maybe_interpreted_code -> do
+ let
+ maybe_stub_o <- compileStub dyn_flags' stub_c_exists
+ let stub_unlinked = case maybe_stub_o of
+ Nothing -> []
+ Just stub_o -> [ DotO stub_o ]
+
+ (hs_unlinked, unlinked_time) <-
+ case hsc_lang of
+
+ -- in interpreted mode, just return the compiled code
+ -- as our "unlinked" object.
+ HscInterpreted ->
+ case maybe_interpreted_code of
+#ifdef GHCI
+ Just comp_bc -> do tm <- getClockTime
+ return ([BCOs comp_bc], tm)
#endif
- HscNothing -> [ Unlit, Cpp, Hsc ]
+ Nothing -> panic "compile: no interpreted code"
- | cish = [ Cc, As ]
+ -- we're in batch mode: finish the compilation pipeline.
+ _other -> do
+ let object_filename = ml_obj_file location
+ object_dir = directoryOf object_filename
- | otherwise = [ ] -- just pass this file through to the linker
+ -- create the object dir if it doesn't exist
+ createDirectoryHierarchy object_dir
- -- ToDo: this is somewhat cryptic
- not_valid = throwDyn (UsageError ("invalid option combination"))
+ runPipeline (StopBefore Ln) ""
+ True Nothing output_fn (Just location)
+ -- the object filename comes from the ModLocation
- stop_phase = case todo of
- StopBefore As | split -> SplitAs
- StopBefore phase -> phase
- DoMkDependHS -> Ln
- DoLink -> Ln
- ----------- ----- ---- --- -- -- - - -
+ o_time <- getModificationTime object_filename
+ return ([DotO object_filename], o_time)
- -- this shouldn't happen.
- if start_phase /= Ln && start_phase `notElem` pipeline
- then throwDyn (CmdLineError ("can't find starting phase for "
- ++ filename))
- else do
+ let linkable = LM unlinked_time mod_name
+ (hs_unlinked ++ stub_unlinked)
- -- if we can't find the phase we're supposed to stop before,
- -- something has gone wrong. This test carefully avoids the
- -- case where we aren't supposed to do any compilation, because the file
- -- is already in linkable form (for example).
- if start_phase `elem` pipeline &&
- (stop_phase /= Ln && stop_phase `notElem` pipeline)
- then throwDyn (UsageError
- ("flag " ++ stop_flag
- ++ " is incompatible with source file `" ++ filename ++ "'"))
- else do
+ return (CompOK pcs details iface (Just linkable))
- let
- -- .o and .hc suffixes can be overriden by command-line options:
- myPhaseInputExt Ln | Just s <- osuf = s
- myPhaseInputExt HCc | Just s <- hcsuf = s
- myPhaseInputExt other = phaseInputExt other
-
- annotatePipeline
- :: [Phase] -- raw pipeline
- -> Phase -- phase to stop before
- -> [(Phase, IntermediateFileType, String{-file extension-})]
- annotatePipeline [] _ = []
- annotatePipeline (Ln:_) _ = []
- annotatePipeline (phase:next_phase:ps) stop =
- (phase, keep_this_output, myPhaseInputExt next_phase)
- : annotatePipeline (next_phase:ps) stop
- where
- keep_this_output
- | next_phase == stop
- = if persistent_output then Persistent else Temporary
- | otherwise
- = case next_phase of
- Ln -> Persistent
- Mangle | keep_raw_s -> Persistent
- As | keep_s -> Persistent
- HCc | keep_hc -> Persistent
- _other -> Temporary
+-----------------------------------------------------------------------------
+-- stub .h and .c files (for foreign export support)
+
+compileStub dflags stub_c_exists
+ | not stub_c_exists = return Nothing
+ | stub_c_exists = do
+ -- compile the _stub.c file w/ gcc
+ let stub_c = hscStubCOutName dflags
+ stub_o <- runPipeline (StopBefore Ln) "stub-compile"
+ True{-persistent output-}
+ Nothing{-no specific output file-}
+ stub_c
+ Nothing{-no ModLocation-}
+ return (Just stub_o)
+
+
+-- ---------------------------------------------------------------------------
+-- Link
+
+link :: GhciMode -- interactive or batch
+ -> DynFlags -- dynamic flags
+ -> Bool -- attempt linking in batch mode?
+ -> HomePackageTable -- what to link
+ -> IO SuccessFlag
+
+-- For the moment, in the batch linker, we don't bother to tell doLink
+-- which packages to link -- it just tries all that are available.
+-- batch_attempt_linking should only be *looked at* in batch mode. It
+-- should only be True if the upsweep was successful and someone
+-- exports main, i.e., we have good reason to believe that linking
+-- will succeed.
+
+#ifdef GHCI
+link Interactive dflags batch_attempt_linking hpt
+ = do -- Not Linking...(demand linker will do the job)
+ return Succeeded
+#endif
+
+link Batch dflags batch_attempt_linking hpt
+ | batch_attempt_linking
+ = do
+ let
+ home_mod_infos = moduleEnvElts hpt
+
+ -- the packages we depend on
+ pkg_deps = concatMap (dep_pkgs . mi_deps . hm_iface) home_mod_infos
+
+ -- the linkables to link
+ linkables = map hm_linkable home_mod_infos
- -- add information about output files to the pipeline
- -- the suffix on an output file is determined by the next phase
- -- in the pipeline, so we add linking to the end of the pipeline
- -- to force the output from the final phase to be a .o file.
+ when (verb >= 3) $ do
+ hPutStrLn stderr "link: linkables are ..."
+ hPutStrLn stderr (showSDoc (vcat (map ppr linkables)))
- annotated_pipeline = annotatePipeline (pipeline ++ [Ln]) stop_phase
+ -- check for the -no-link flag
+ omit_linking <- readIORef v_NoLink
+ if omit_linking
+ then do when (verb >= 3) $
+ hPutStrLn stderr "link(batch): linking omitted (-no-link flag given)."
+ return Succeeded
+ else do
- phase_ne p (p1,_,_) = (p1 /= p)
- ----------- ----- ---- --- -- -- - - -
+ when (verb >= 1) $
+ hPutStrLn stderr "Linking ..."
- return (
- takeWhile (phase_ne stop_phase ) $
- dropWhile (phase_ne start_phase) $
- annotated_pipeline
- )
+ let getOfiles (LM _ _ us) = map nameOfObject (filter isObject us)
+ obj_files = concatMap getOfiles linkables
+ -- Don't showPass in Batch mode; doLink will do that for us.
+ staticLink obj_files pkg_deps
+
+ when (verb >= 3) (hPutStrLn stderr "link: done")
+
+ -- staticLink only returns if it succeeds
+ return Succeeded
+
+ | otherwise
+ = do when (verb >= 3) $ do
+ hPutStrLn stderr "link(batch): upsweep (partially) failed OR"
+ hPutStrLn stderr " Main.main not exported; not linking."
+ return Succeeded
+ where
+ verb = verbosity dflags
+
+-- ---------------------------------------------------------------------------
+-- Run a compilation pipeline, consisting of multiple phases.
runPipeline
- :: [ (Phase, IntermediateFileType, String) ] -- phases to run
- -> (String,String) -- input file
- -> Bool -- doing linking afterward?
- -> Bool -- take into account -o when generating output?
- -> IO (String, String) -- return final filename
-
-runPipeline pipeline (input_fn,suffix) do_linking use_ofile
- = pipeLoop pipeline (input_fn,suffix) do_linking use_ofile basename suffix
- where (basename, _) = splitFilename input_fn
-
-pipeLoop [] input_fn _ _ _ _ = return input_fn
-pipeLoop (all_phases@((phase, keep, o_suffix):phases))
- (input_fn,real_suff) do_linking use_ofile orig_basename orig_suffix
+ :: GhcMode -- when to stop
+ -> String -- "stop after" flag
+ -> Bool -- final output is persistent?
+ -> Maybe FilePath -- where to put the output, optionally
+ -> FilePath -- input filename
+ -> Maybe ModLocation -- a ModLocation for this module, if we have one
+ -> IO FilePath -- output filename
+
+runPipeline todo stop_flag keep_output maybe_output_filename input_fn maybe_loc
= do
+ split <- readIORef v_Split_object_files
+ let (basename, suffix) = splitFilename input_fn
+ start_phase = startPhase suffix
+
+ stop_phase = case todo of
+ StopBefore As | split -> SplitAs
+ StopBefore phase -> phase
+ DoMkDependHS -> Ln
+ DoLink -> Ln
+ DoMkDLL -> Ln
+
+ -- We want to catch cases of "you can't get there from here" before
+ -- we start the pipeline, because otherwise it will just run off the
+ -- end.
+ --
+ -- There is a partial ordering on phases, where A < B iff A occurs
+ -- before B in a normal compilation pipeline.
+ --
+ when (not (start_phase `happensBefore` stop_phase)) $
+ throwDyn (UsageError
+ ("flag `" ++ stop_flag
+ ++ "' is incompatible with source file `"
+ ++ input_fn ++ "'"))
+
+ -- generate a function which will be used to calculate output file names
+ -- as we go along.
+ get_output_fn <- genOutputFilenameFunc keep_output maybe_output_filename
+ stop_phase basename
+
+ -- and execute the pipeline...
+ (output_fn, maybe_loc) <-
+ pipeLoop start_phase stop_phase input_fn basename suffix
+ get_output_fn maybe_loc
+
+ -- sometimes, a compilation phase doesn't actually generate any output
+ -- (eg. the CPP phase when -fcpp is not turned on). If we end on this
+ -- stage, but we wanted to keep the output, then we have to explicitly
+ -- copy the file.
+ if keep_output
+ then do final_fn <- get_output_fn stop_phase maybe_loc
+ when (final_fn /= output_fn) $
+ copy ("Copying `" ++ output_fn ++ "' to `" ++ final_fn
+ ++ "'") output_fn final_fn
+ return final_fn
+ else
+ return output_fn
+
+
+pipeLoop :: Phase -> Phase -> FilePath -> String -> Suffix
+ -> (Phase -> Maybe ModLocation -> IO FilePath)
+ -> Maybe ModLocation -> IO (FilePath, Maybe ModLocation)
+
+pipeLoop phase stop_phase input_fn orig_basename orig_suff
+ get_output_fn maybe_loc
+
+ | phase == stop_phase = return (input_fn, maybe_loc) -- all done
+
+ | 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
+ maybe_next_phase <- runPhase phase orig_basename orig_suff input_fn
+ get_output_fn maybe_loc
+ case maybe_next_phase of
+ (Nothing, maybe_loc, output_fn) -> do
+ -- we stopped early, but return the *final* filename
+ -- (it presumably already exists)
+ final_fn <- get_output_fn stop_phase maybe_loc
+ return (final_fn, maybe_loc)
+ (Just next_phase, maybe_loc, output_fn) ->
+ pipeLoop next_phase stop_phase output_fn
+ orig_basename orig_suff get_output_fn maybe_loc
+
+
+genOutputFilenameFunc :: Bool -> Maybe FilePath -> Phase -> String
+ -> IO (Phase{-next phase-} -> Maybe ModLocation -> IO FilePath)
+genOutputFilenameFunc keep_output maybe_output_filename stop_phase basename
+ = do
+ hcsuf <- readIORef v_HC_suf
+ odir <- readIORef v_Output_dir
+ osuf <- readIORef v_Object_suf
+ keep_hc <- readIORef v_Keep_hc_files
+#ifdef ILX
+ keep_il <- readIORef v_Keep_il_files
+ keep_ilx <- readIORef v_Keep_ilx_files
+#endif
+ keep_raw_s <- readIORef v_Keep_raw_s_files
+ keep_s <- readIORef v_Keep_s_files
+ let
+ myPhaseInputExt HCc | Just s <- hcsuf = s
+ myPhaseInputExt Ln = osuf
+ myPhaseInputExt other = phaseInputExt other
+
+ func next_phase maybe_location
+ | next_phase == stop_phase
+ = case maybe_output_filename of
+ Just file -> return file
+ Nothing
+ | Ln <- next_phase -> return odir_persistent
+ | keep_output -> return persistent
+ | otherwise -> newTempName suffix
+ -- sometimes, we keep output from intermediate stages
+ | otherwise
+ = case next_phase of
+ Ln -> return odir_persistent
+ Mangle | keep_raw_s -> return persistent
+ As | keep_s -> return persistent
+ HCc | keep_hc -> return persistent
+ _other -> newTempName suffix
+ where
+ suffix = myPhaseInputExt next_phase
+ persistent = basename ++ '.':suffix
+
+ odir_persistent
+ | Just loc <- maybe_location = ml_obj_file loc
+ | Just d <- odir = replaceFilenameDirectory persistent d
+ | otherwise = persistent
+
+ return func
+
+
+-- -----------------------------------------------------------------------------
+-- Each phase in the pipeline returns the next phase to execute, and the
+-- name of the file in which the output was placed.
+--
+-- We must do things dynamically this way, because we often don't know
+-- what the rest of the phases will be until part-way through the
+-- compilation: for example, an {-# OPTIONS -fasm #-} at the beginning
+-- of a source file can change the latter stages of the pipeline from
+-- taking the via-C route to using the native code generator.
+
+runPhase :: Phase
+ -> String -- basename of original input source
+ -> String -- its extension
+ -> FilePath -- name of file which contains the input to this phase.
+ -> (Phase -> Maybe ModLocation -> IO FilePath)
+ -- how to calculate the output filename
+ -> Maybe ModLocation -- the ModLocation, if we have one
+ -> IO (Maybe Phase, -- next phase
+ Maybe ModLocation, -- the ModLocation, if we have one
+ FilePath) -- output filename
- output_fn <- outputFileName (null phases) keep o_suffix
-
- mbCarryOn <- run_phase phase orig_basename orig_suffix input_fn output_fn
- -- sometimes we bail out early, eg. when the compiler's recompilation
- -- checker has determined that recompilation isn't necessary.
- case mbCarryOn of
- Nothing -> do
- let (_,keep,final_suffix) = last all_phases
- ofile <- outputFileName True keep final_suffix
- return (ofile, final_suffix)
- -- carry on ...
- Just fn ->
- {-
- Notice that in order to keep the invariant that we can
- determine a compilation pipeline's 'start phase' just
- by looking at the input filename, the input filename
- to the next stage/phase is associated here with the suffix
- of the output file, *even* if it does not have that
- suffix in reality.
-
- Why is this important? Because we may run a compilation
- pipeline in stages (cf. Main.main.compileFile's two stages),
- so when generating the next stage we need to be precise
- about what kind of file (=> suffix) is given as input.
-
- [Not having to generate a pipeline in stages seems like
- the right way to go, but I've punted on this for now --sof]
-
- -}
- pipeLoop phases (fn, o_suffix) do_linking use_ofile
- orig_basename orig_suffix
- where
- outputFileName last_phase keep suffix
- = do o_file <- readIORef v_Output_file
- if last_phase && not do_linking && use_ofile && isJust o_file
- then case o_file of
- Just s -> return s
- Nothing -> error "outputFileName"
- else if keep == Persistent
- then odir_ify (orig_basename ++ '.':suffix)
- else newTempName suffix
-
-run_phase :: Phase
- -> String -- basename of original input source
- -> String -- its extension
- -> FilePath -- name of file which contains the input to this phase.
- -> FilePath -- where to stick the result.
- -> IO (Maybe FilePath)
- -- Nothing => stop the compilation pipeline
- -- Just fn => the result of this phase can be found in 'fn'
- -- (this can either be 'input_fn' or 'output_fn').
-------------------------------------------------------------------------------
-- Unlit phase
-run_phase Unlit _basename _suff input_fn output_fn
+runPhase Unlit _basename _suff input_fn get_output_fn maybe_loc
= do unlit_flags <- getOpts opt_L
- -- The -h option passes the file name for unlit to put in a #line directive;
- -- we undosify it so that it doesn't contain backslashes in Windows, which
- -- would disappear in error messages
+ -- The -h option passes the file name for unlit to put in a #line directive
+ output_fn <- get_output_fn Cpp maybe_loc
+
SysTools.runUnlit (map SysTools.Option unlit_flags ++
[ SysTools.Option "-h"
, SysTools.Option input_fn
, SysTools.FileOption "" input_fn
, SysTools.FileOption "" output_fn
])
- return (Just output_fn)
+
+ return (Just Cpp, maybe_loc, output_fn)
-------------------------------------------------------------------------------
-- Cpp phase
-run_phase Cpp basename suff input_fn output_fn
+runPhase Cpp basename suff input_fn get_output_fn maybe_loc
= do src_opts <- getOptionsFromSource input_fn
unhandled_flags <- processArgs dynamic_flags src_opts []
checkProcessArgsResult unhandled_flags basename suff
if not do_cpp then
-- no need to preprocess CPP, just pass input file along
-- to the next phase of the pipeline.
- return (Just input_fn)
+ return (Just HsPp, maybe_loc, input_fn)
else do
hscpp_opts <- getOpts opt_P
hs_src_cpp_opts <- readIORef v_Hs_source_cpp_opts
cmdline_include_paths <- readIORef v_Include_paths
- pkg_include_dirs <- getPackageIncludePath
+
+ pkg_include_dirs <- getPackageIncludePath []
let include_paths = foldr (\ x xs -> "-I" : x : xs) []
(cmdline_include_paths ++ pkg_include_dirs)
verb <- getVerbFlag
(md_c_flags, _) <- machdepCCOpts
+ output_fn <- get_output_fn HsPp maybe_loc
+
SysTools.runCpp ([SysTools.Option verb]
++ map SysTools.Option include_paths
++ map SysTools.Option hs_src_cpp_opts
++ map SysTools.Option md_c_flags
++ [ SysTools.Option "-x"
, SysTools.Option "c"
- , SysTools.FileOption "" input_fn
+ , 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
])
- return (Just output_fn)
------------------------------------------------------------------------------
--- MkDependHS phase
-
-run_phase MkDependHS basename suff input_fn output_fn = do
- src <- readFile input_fn
- let (import_sources, import_normals, _) = getImports src
-
- let orig_fn = basename ++ '.':suff
- deps_sources <- mapM (findDependency True orig_fn) import_sources
- deps_normals <- mapM (findDependency False orig_fn) import_normals
- let deps = deps_sources ++ deps_normals
-
- osuf_opt <- readIORef v_Object_suf
- let osuf = case osuf_opt of
- Nothing -> phaseInputExt Ln
- Just s -> s
-
- extra_suffixes <- readIORef v_Dep_suffixes
- let suffixes = osuf : map (++ ('_':osuf)) extra_suffixes
- ofiles = map (\suf -> basename ++ '.':suf) suffixes
-
- objs <- mapM odir_ify ofiles
-
- -- Handle for file that accumulates dependencies
- hdl <- readIORef v_Dep_tmp_hdl
-
- -- std dependency of the object(s) on the source file
- hPutStrLn hdl (unwords objs ++ " : " ++ basename ++ '.':suff)
-
- let genDep (dep, False {- not an hi file -}) =
- hPutStrLn hdl (unwords objs ++ " : " ++ dep)
- genDep (dep, True {- is an hi file -}) = do
- hisuf <- readIORef v_Hi_suf
- let dep_base = remove_suffix '.' dep
- deps = (dep_base ++ hisuf)
- : map (\suf -> dep_base ++ suf ++ '_':hisuf) extra_suffixes
- -- length objs should be == length deps
- sequence_ (zipWith (\o d -> hPutStrLn hdl (o ++ " : " ++ d)) objs deps)
-
- mapM genDep [ d | Just d <- deps ]
-
- return (Just output_fn)
-
--- add the lines to dep_makefile:
- -- always:
- -- this.o : this.hs
-
- -- if the dependency is on something other than a .hi file:
- -- this.o this.p_o ... : dep
- -- otherwise
- -- if the import is {-# SOURCE #-}
- -- this.o this.p_o ... : dep.hi-boot[-$vers]
-
- -- else
- -- this.o ... : dep.hi
- -- this.p_o ... : dep.p_hi
- -- ...
-
- -- (where .o is $osuf, and the other suffixes come from
- -- the cmdline -s options).
-
+ return (Just HsPp, maybe_loc, output_fn)
+
+-------------------------------------------------------------------------------
+-- HsPp phase
+
+runPhase HsPp basename suff input_fn get_output_fn maybe_loc
+ = do do_pp <- dynFlag ppFlag
+ if not do_pp then
+ -- no need to preprocess, just pass input file along
+ -- to the next phase of the pipeline.
+ return (Just Hsc, maybe_loc, input_fn)
+ else do
+ hspp_opts <- getOpts opt_F
+ hs_src_pp_opts <- readIORef v_Hs_source_pp_opts
+ let orig_fn = basename ++ '.':suff
+ output_fn <- get_output_fn Hsc maybe_loc
+ SysTools.runPp ( [ SysTools.Option orig_fn
+ , SysTools.Option input_fn
+ , SysTools.FileOption "" output_fn
+ ] ++
+ map SysTools.Option hs_src_pp_opts ++
+ map SysTools.Option hspp_opts
+ )
+ return (Just Hsc, maybe_loc, output_fn)
+
-----------------------------------------------------------------------------
-- Hsc phase
-- Compilation of a single module, in "legacy" mode (_not_ under
-- the direction of the compilation manager).
-run_phase Hsc basename suff input_fn output_fn
- = do
-
+runPhase Hsc basename suff input_fn get_output_fn _maybe_loc = do
+ todo <- readIORef v_GhcMode
+ if todo == DoMkDependHS then do
+ locn <- doMkDependHSPhase basename suff input_fn
+ return (Nothing, Just locn, input_fn) -- Ln is a dummy stop phase
+
+ else do
+ -- normal Hsc mode, not mkdependHS
+
-- we add the current directory (i.e. the directory in which
-- the .hs files resides) to the import path, since this is
-- what gcc does, and it's probably what you want.
- let current_dir = getdir basename
+ let current_dir = directoryOf basename
paths <- readIORef v_Include_paths
writeIORef v_Include_paths (current_dir : paths)
- -- figure out which header files to #include in a generated .hc file
- c_includes <- getPackageCIncludes
- cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
-
- let cc_injects = unlines (map mk_include
- (c_includes ++ reverse cmdline_includes))
- mk_include h_file =
- case h_file of
- '"':_{-"-} -> "#include "++h_file
- '<':_ -> "#include "++h_file
- _ -> "#include \""++h_file++"\""
-
- writeIORef v_HCHeader cc_injects
-
-- gather the imports and module name
- (srcimps,imps,mod_name) <- getImportsFromFile input_fn
-
- -- build a ModuleLocation to pass to hscMain.
- (mod, location')
- <- mkHomeModuleLocn mod_name basename (basename ++ '.':suff)
+ (_,_,mod_name) <-
+ if extcoreish_suffix suff
+ then do
+ -- no explicit imports in ExtCore input.
+ m <- getCoreModuleName input_fn
+ return ([], [], mkModuleName m)
+ else
+ getImportsFromFile input_fn
+
+ -- build a ModLocation to pass to hscMain.
+ (mod, location') <- mkHomeModLocation mod_name (basename ++ '.':suff)
-- take -ohi into account if present
ohi <- readIORef v_Output_hi
-- 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.
do_recomp <- readIORef v_Recomp
- todo <- readIORef v_GhcMode
expl_o_file <- readIORef v_Output_file
- let o_file =
- case expl_o_file of
- Nothing -> unJust "source_unchanged" (ml_obj_file location)
- Just x -> x
+
+ let o_file -- if the -o option is given and IT IS THE OBJECT FILE FOR
+ -- THIS COMPILATION, then use that to determine if the
+ -- source is unchanged.
+ | Just x <- expl_o_file, todo == StopBefore Ln = x
+ | otherwise = ml_obj_file location
+
source_unchanged <-
if not (do_recomp && ( todo == DoLink || todo == StopBefore Ln ))
then return False
-- get the DynFlags
dyn_flags <- getDynFlags
+ hsc_lang <- hscMaybeAdjustLang (hscLang dyn_flags)
+ next_phase <- hscNextPhase hsc_lang
+ output_fn <- get_output_fn next_phase (Just location)
- let dyn_flags' = dyn_flags { hscOutName = output_fn,
+ let dyn_flags' = dyn_flags { hscLang = hsc_lang,
+ hscOutName = output_fn,
hscStubCOutName = basename ++ "_stub.c",
hscStubHOutName = basename ++ "_stub.h",
- extCoreName = basename ++ ".core" }
+ extCoreName = basename ++ ".hcr" }
+ hsc_env = HscEnv { hsc_mode = OneShot,
+ hsc_dflags = dyn_flags',
+ hsc_HPT = emptyHomePackageTable }
+
-- run the compiler!
pcs <- initPersistentCompilerState
- result <- hscMain OneShot
- dyn_flags' mod
+ result <- hscMain hsc_env pcs mod
location{ ml_hspp_file=Just input_fn }
source_unchanged
False
Nothing -- no iface
- emptyModuleEnv -- HomeSymbolTable
- emptyModuleEnv -- HomeIfaceTable
- pcs
- case result of {
+ case result of
- HscFail pcs -> throwDyn (PhaseFailed "hsc" (ExitFailure 1));
+ HscFail pcs -> throwDyn (PhaseFailed "hsc" (ExitFailure 1))
- HscNoRecomp pcs details iface -> do { SysTools.touch "Touching object file" o_file
- ; return Nothing } ;
+ HscNoRecomp pcs details iface -> do
+ SysTools.touch "Touching object file" o_file
+ return (Nothing, Just location, output_fn)
- HscRecomp pcs details iface stub_h_exists stub_c_exists
+ HscRecomp _pcs _details _iface stub_h_exists stub_c_exists
_maybe_interpreted_code -> do
- -- deal with stubs
- maybe_stub_o <- compileStub dyn_flags' stub_c_exists
- case maybe_stub_o of
- Nothing -> return ()
- Just stub_o -> add v_Ld_inputs stub_o
- case hscLang dyn_flags of
- HscNothing -> return Nothing
- _ -> return (Just output_fn)
- }
+ -- deal with stubs
+ maybe_stub_o <- compileStub dyn_flags' stub_c_exists
+ case maybe_stub_o of
+ Nothing -> return ()
+ Just stub_o -> add v_Ld_inputs stub_o
+ case hscLang dyn_flags of
+ HscNothing -> return (Nothing, Just location, output_fn)
+ _ -> return (Just next_phase, Just location, 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.
-run_phase cc_phase basename suff input_fn output_fn
+runPhase cc_phase basename suff input_fn get_output_fn maybe_loc
| cc_phase == Cc || cc_phase == HCc
- = do cc_opts <- getOpts opt_c
+ = do cc_opts <- getOpts opt_c
cmdline_include_paths <- readIORef v_Include_paths
+ split <- readIORef v_Split_object_files
+ mangle <- readIORef v_Do_asm_mangling
+
let hcc = cc_phase == HCc
- -- add package include paths even if we're just compiling
- -- .c files; this is the Value Add(TM) that using
- -- ghc instead of gcc gives you :)
- pkg_include_dirs <- getPackageIncludePath
+ next_phase
+ | hcc && mangle = Mangle
+ | otherwise = As
+
+ output_fn <- get_output_fn next_phase maybe_loc
+
+ -- HC files have the dependent packages stamped into them
+ pkgs <- if hcc then getHCFilePackages input_fn else return []
+
+ -- add package include paths even if we're just compiling .c
+ -- files; this is the Value Add(TM) that using ghc instead of
+ -- gcc gives you :)
+ pkg_include_dirs <- getPackageIncludePath pkgs
let include_paths = foldr (\ x xs -> "-I" : x : xs) []
(cmdline_include_paths ++ pkg_include_dirs)
let opt_flag | o2 = "-O2"
| otherwise = "-O"
- pkg_extra_cc_opts <- getPackageExtraCcOpts
+ pkg_extra_cc_opts <- getPackageExtraCcOpts pkgs
split_objs <- readIORef v_Split_object_files
let split_opt | hcc && split_objs = [ "-DUSE_SPLIT_MARKERS" ]
| otherwise = [ ]
excessPrecision <- readIORef v_Excess_precision
- SysTools.runCc ([ SysTools.Option "-x", SysTools.Option "c"
- , SysTools.FileOption "" input_fn
+
+ -- force the C compiler to interpret this file as C when
+ -- compiling .hc files, by adding the -x c option.
+ let langopt
+ | cc_phase == HCc = [ SysTools.Option "-x", SysTools.Option "c"]
+ | otherwise = [ ]
+
+ SysTools.runCc (langopt ++
+ [ SysTools.FileOption "" input_fn
, SysTools.Option "-o"
, SysTools.FileOption "" output_fn
]
++ include_paths
++ pkg_extra_cc_opts
))
- return (Just output_fn)
+
+ return (Just next_phase, maybe_loc, output_fn)
-- ToDo: postprocess the output from gcc
-----------------------------------------------------------------------------
-- Mangle phase
-run_phase Mangle _basename _suff input_fn output_fn
- = do mangler_opts <- getOpts opt_m
- machdep_opts <- if (prefixMatch "i386" cTARGETPLATFORM)
- then do n_regs <- dynFlag stolen_x86_regs
- return [ show n_regs ]
- else return []
+runPhase Mangle _basename _suff input_fn get_output_fn maybe_loc
+ = do mangler_opts <- getOpts opt_m
+ machdep_opts <- if (prefixMatch "i386" cTARGETPLATFORM)
+ then do n_regs <- dynFlag stolen_x86_regs
+ return [ show n_regs ]
+ else return []
- SysTools.runMangle (map SysTools.Option mangler_opts
+ split <- readIORef v_Split_object_files
+ let next_phase
+ | split = SplitMangle
+ | otherwise = As
+ output_fn <- get_output_fn next_phase maybe_loc
+
+ SysTools.runMangle (map SysTools.Option mangler_opts
++ [ SysTools.FileOption "" input_fn
, SysTools.FileOption "" output_fn
]
++ map SysTools.Option machdep_opts)
- return (Just output_fn)
+
+ return (Just next_phase, maybe_loc, output_fn)
-----------------------------------------------------------------------------
-- Splitting phase
-run_phase SplitMangle _basename _suff input_fn output_fn
+runPhase SplitMangle _basename _suff input_fn get_output_fn maybe_loc
= do -- tmp_pfx is the prefix used for the split .s files
-- We also use it as the file to contain the no. of split .s files (sigh)
split_s_prefix <- SysTools.newTempName "split"
addFilesToClean [ split_s_prefix ++ "__" ++ show n ++ ".s"
| n <- [1..n_files]]
- return (Just output_fn)
+ return (Just SplitAs, maybe_loc, "**splitmangle**")
+ -- we don't use the filename
-----------------------------------------------------------------------------
-- As phase
-run_phase As _basename _suff input_fn output_fn
+runPhase As _basename _suff input_fn get_output_fn maybe_loc
= do as_opts <- getOpts opt_a
cmdline_include_paths <- readIORef v_Include_paths
+ output_fn <- get_output_fn Ln maybe_loc
+
SysTools.runAs (map SysTools.Option as_opts
++ [ SysTools.Option ("-I" ++ p) | p <- cmdline_include_paths ]
++ [ SysTools.Option "-c"
, SysTools.Option "-o"
, SysTools.FileOption "" output_fn
])
- return (Just output_fn)
-run_phase SplitAs basename _suff _input_fn output_fn
+ return (Just Ln, maybe_loc, output_fn)
+
+
+runPhase SplitAs basename _suff _input_fn get_output_fn maybe_loc
= do as_opts <- getOpts opt_a
(split_s_prefix, n) <- readIORef v_Split_info
odir <- readIORef v_Output_dir
let real_odir = case odir of
- Nothing -> basename
+ Nothing -> basename ++ "_split"
Just d -> d
let assemble_file n
= do let input_s = split_s_prefix ++ "__" ++ show n ++ ".s"
- let output_o = newdir real_odir
+ let output_o = replaceFilenameDirectory
(basename ++ "__" ++ show n ++ ".o")
+ real_odir
real_o <- osuf_ify output_o
SysTools.runAs (map SysTools.Option as_opts ++
[ SysTools.Option "-c"
])
mapM_ assemble_file [1..n]
- return (Just output_fn)
+
+ output_fn <- get_output_fn Ln maybe_loc
+ return (Just Ln, maybe_loc, output_fn)
#ifdef ILX
-----------------------------------------------------------------------------
-- Ilx2Il phase
-- Run ilx2il over the ILX output, getting an IL file
-run_phase Ilx2Il _basename _suff input_fn output_fn
+runPhase Ilx2Il _basename _suff input_fn get_output_fn maybe_loc
= do ilx2il_opts <- getOpts opt_I
SysTools.runIlx2il (map SysTools.Option ilx2il_opts
++ [ SysTools.Option "--no-add-suffix-to-assembly",
SysTools.Option "-o",
SysTools.FileOption "" output_fn,
SysTools.FileOption "" input_fn ])
- return (Just output_fn)
+ return True
-----------------------------------------------------------------------------
-- Ilasm phase
-- Run ilasm over the IL, getting a DLL
-run_phase Ilasm _basename _suff input_fn output_fn
+runPhase Ilasm _basename _suff input_fn get_output_fn maybe_loc
= do ilasm_opts <- getOpts opt_i
SysTools.runIlasm (map SysTools.Option ilasm_opts
++ [ SysTools.Option "/QUIET",
SysTools.Option "/DLL",
SysTools.FileOption "/OUT=" output_fn,
SysTools.FileOption "" input_fn ])
- return (Just output_fn)
+ return True
-#endif -- ILX
+#endif /* ILX */
-----------------------------------------------------------------------------
-- MoveBinary sort-of-phase
-- wrapper script calling the binary. Currently, we need this only in
-- a parallel way (i.e. in GUM), because PVM expects the binary in a
-- central directory.
--- This is called from doLink below, after linking. I haven't made it
+-- This is called from staticLink below, after linking. I haven't made it
-- a separate phase to minimise interfering with other modules, and
-- we don't need the generality of a phase (MoveBinary is always
-- done after linking and makes only sense in a parallel setup) -- HWL
-run_phase_MoveBinary input_fn
+runPhase_MoveBinary input_fn
= do
sysMan <- getSysMan
pvm_root <- getEnv "PVM_ROOT"
-- Complain about non-dynamic flags in OPTIONS pragmas
checkProcessArgsResult flags basename suff
- = do when (not (null flags)) (throwDyn (ProgramError (
- basename ++ "." ++ suff
- ++ ": static flags are not allowed in {-# OPTIONS #-} pragmas:\n\t"
- ++ unwords flags)) (ExitFailure 1))
+ = do when (notNull flags) (throwDyn (ProgramError (
+ showSDoc (hang (text basename <> text ('.':suff) <> char ':')
+ 4 (text "unknown flags in {-# OPTIONS #-} pragma:" <+>
+ hsep (map text flags)))
+ )))
+
+-----------------------------------------------------------------------------
+-- Look for the /* GHC_PACKAGES ... */ comment at the top of a .hc file
+
+getHCFilePackages :: FilePath -> IO [PackageName]
+getHCFilePackages filename =
+ EXCEPTION.bracket (openFile filename ReadMode) hClose $ \h -> do
+ l <- hGetLine h
+ case l of
+ '/':'*':' ':'G':'H':'C':'_':'P':'A':'C':'K':'A':'G':'E':'S':rest ->
+ return (map mkPackageName (words rest))
+ _other ->
+ return []
-----------------------------------------------------------------------------
--- Linking
+-- Static linking, of .o files
-doLink :: [String] -> IO ()
-doLink o_files = do
+-- The list of packages passed to link is the list of packages on
+-- which this program depends, as discovered by the compilation
+-- manager. It is combined with the list of packages that the user
+-- specifies on the command line with -package flags.
+--
+-- In one-shot linking mode, we can't discover the package
+-- dependencies (because we haven't actually done any compilation or
+-- read any interface files), so the user must explicitly specify all
+-- the packages.
+
+staticLink :: [FilePath] -> [PackageName] -> IO ()
+staticLink o_files dep_packages = do
verb <- getVerbFlag
static <- readIORef v_Static
no_hs_main <- readIORef v_NoHsMain
+ -- get the full list of packages to link with, by combining the
+ -- explicit packages with the auto packages and all of their
+ -- dependencies, and eliminating duplicates.
+
o_file <- readIORef v_Output_file
let output_fn = case o_file of { Just s -> s; Nothing -> "a.out"; }
- pkg_lib_paths <- getPackageLibraryPath
+ pkg_lib_paths <- getPackageLibraryPath dep_packages
let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
lib_paths <- readIORef v_Library_paths
let lib_path_opts = map ("-L"++) lib_paths
- pkg_libs <- getPackageLibraries
- let imp = if static then "" else "_imp"
- pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
+ pkg_link_opts <- getPackageLinkOpts dep_packages
- libs <- readIORef v_Cmdline_libraries
- let lib_opts = map ("-l"++) (reverse libs)
- -- reverse because they're added in reverse order from the cmd line
+#ifdef darwin_TARGET_OS
+ pkg_framework_paths <- getPackageFrameworkPath dep_packages
+ let pkg_framework_path_opts = map ("-F"++) pkg_framework_paths
+
+ framework_paths <- readIORef v_Framework_paths
+ let framework_path_opts = map ("-F"++) framework_paths
- pkg_extra_ld_opts <- getPackageExtraLdOpts
+ pkg_frameworks <- getPackageFrameworks dep_packages
+ let pkg_framework_opts = concat [ ["-framework", fw] | fw <- pkg_frameworks ]
+
+ frameworks <- readIORef v_Cmdline_frameworks
+ let framework_opts = concat [ ["-framework", fw] | fw <- reverse frameworks ]
+ -- reverse because they're added in reverse order from the cmd line
+#endif
-- probably _stub.o files
extra_ld_inputs <- readIORef v_Ld_inputs
- -- opts from -optl-<blah>
+ -- opts from -optl-<blah> (including -l<blah> options)
extra_ld_opts <- getStaticOpts v_Opt_l
- rts_pkg <- getPackageDetails ["rts"]
- std_pkg <- getPackageDetails ["std"]
+ [rts_pkg, std_pkg] <- getPackageDetails [rtsPackage, basePackage]
+
let extra_os = if static || no_hs_main
then []
- else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
- head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
+ else [ head (library_dirs rts_pkg) ++ "/Main.dll_o",
+ head (library_dirs std_pkg) ++ "/PrelMain.dll_o" ]
(md_c_flags, _) <- machdepCCOpts
SysTools.runLink ( [ SysTools.Option verb
++ extra_os
++ extra_ld_inputs
++ lib_path_opts
- ++ lib_opts
- ++ pkg_lib_path_opts
- ++ pkg_lib_opts
- ++ pkg_extra_ld_opts
++ extra_ld_opts
+#ifdef darwin_TARGET_OS
+ ++ framework_path_opts
+ ++ framework_opts
+#endif
+ ++ pkg_lib_path_opts
+ ++ pkg_link_opts
+#ifdef darwin_TARGET_OS
+ ++ pkg_framework_path_opts
+ ++ pkg_framework_opts
+#endif
++ if static && not no_hs_main then
- [ "-u", prefixUnderscore "PrelMain_mainIO_closure" ,
- "-u", prefixUnderscore "__init_PrelMain"]
+ [ "-u", prefixUnderscore "Main_zdmain_closure"]
else []))
-- parallel only: move binary to another dir -- HWL
ways_ <- readIORef v_Ways
when (WayPar `elem` ways_)
- (do success <- run_phase_MoveBinary output_fn
+ (do success <- runPhase_MoveBinary output_fn
if success then return ()
else throwDyn (InstallationError ("cannot move binary to PVM dir")))
-----------------------------------------------------------------------------
-- Making a DLL (only for Win32)
-doMkDLL :: [String] -> IO ()
-doMkDLL o_files = do
+doMkDLL :: [String] -> [PackageName] -> IO ()
+doMkDLL o_files dep_packages = do
verb <- getVerbFlag
static <- readIORef v_Static
no_hs_main <- readIORef v_NoHsMain
o_file <- readIORef v_Output_file
let output_fn = case o_file of { Just s -> s; Nothing -> "HSdll.dll"; }
- pkg_lib_paths <- getPackageLibraryPath
+ pkg_lib_paths <- getPackageLibraryPath dep_packages
let pkg_lib_path_opts = map ("-L"++) pkg_lib_paths
lib_paths <- readIORef v_Library_paths
let lib_path_opts = map ("-L"++) lib_paths
- pkg_libs <- getPackageLibraries
- let imp = if static then "" else "_imp"
- pkg_lib_opts = map (\lib -> "-l" ++ lib ++ imp) pkg_libs
-
- libs <- readIORef v_Cmdline_libraries
- let lib_opts = map ("-l"++) (reverse libs)
- -- reverse because they're added in reverse order from the cmd line
-
- pkg_extra_ld_opts <- getPackageExtraLdOpts
+ pkg_link_opts <- getPackageLinkOpts dep_packages
-- probably _stub.o files
extra_ld_inputs <- readIORef v_Ld_inputs
-- opts from -optdll-<blah>
extra_ld_opts <- getStaticOpts v_Opt_dll
- rts_pkg <- getPackageDetails ["rts"]
- std_pkg <- getPackageDetails ["std"]
+ [rts_pkg, std_pkg] <- getPackageDetails [rtsPackage, basePackage]
let extra_os = if static || no_hs_main
then []
- else [ head (library_dirs (head rts_pkg)) ++ "/Main.dll_o",
- head (library_dirs (head std_pkg)) ++ "/PrelMain.dll_o" ]
+ else [ head (library_dirs rts_pkg) ++ "/Main.dll_o",
+ head (library_dirs std_pkg) ++ "/PrelMain.dll_o" ]
(md_c_flags, _) <- machdepCCOpts
SysTools.runMkDLL
++ [ "--target=i386-mingw32" ]
++ extra_ld_inputs
++ lib_path_opts
- ++ lib_opts
- ++ pkg_lib_path_opts
- ++ pkg_lib_opts
- ++ pkg_extra_ld_opts
- ++ (case findPS (packString (concat extra_ld_opts)) (packString "--def") of
- Nothing -> [ "--export-all" ]
- Just _ -> [ "" ])
++ extra_ld_opts
+ ++ pkg_lib_path_opts
+ ++ pkg_link_opts
+ ++ (if "--def" `elem` (concatMap words extra_ld_opts)
+ then [ "" ]
+ else [ "--export-all" ])
))
------------------------------------------------------------------------------
--- Just preprocess a file, put the result in a temp. file (used by the
--- compilation manager during the summary phase).
-
-preprocess :: FilePath -> IO FilePath
-preprocess filename =
- ASSERT(haskellish_src_file filename)
- do restoreDynFlags -- Restore to state of last save
- pipeline <- genPipeline (StopBefore Hsc) ("preprocess") False
- defaultHscLang (filename, getFileSuffix filename)
- (fn,_) <- runPipeline pipeline (filename,getFileSuffix filename)
- False{-no linking-} False{-no -o flag-}
- return fn
-
------------------------------------------------------------------------------
--- Compile a single module, under the control of the compilation manager.
---
--- This is the interface between the compilation manager and the
--- compiler proper (hsc), where we deal with tedious details like
--- reading the OPTIONS pragma from the source file, and passing the
--- output of hsc through the C compiler.
-
--- The driver sits between 'compile' and 'hscMain', translating calls
--- to the former into calls to the latter, and results from the latter
--- into results from the former. It does things like preprocessing
--- the .hs file if necessary, and compiling up the .stub_c files to
--- generate Linkables.
-
--- NB. No old interface can also mean that the source has changed.
-
-compile :: GhciMode -- distinguish batch from interactive
- -> ModSummary -- summary, including source
- -> Bool -- True <=> source unchanged
- -> Bool -- True <=> have object
- -> Maybe ModIface -- old interface, if available
- -> HomeSymbolTable -- for home module ModDetails
- -> HomeIfaceTable -- for home module Ifaces
- -> PersistentCompilerState -- persistent compiler state
- -> IO CompResult
-
-data CompResult
- = CompOK PersistentCompilerState -- updated PCS
- ModDetails -- new details (HST additions)
- ModIface -- new iface (HIT additions)
- (Maybe Linkable)
- -- new code; Nothing => compilation was not reqd
- -- (old code is still valid)
-
- | CompErrs PersistentCompilerState -- updated PCS
-
-
-compile ghci_mode summary source_unchanged have_object
- old_iface hst hit pcs = do
- dyn_flags <- restoreDynFlags -- Restore to the state of the last save
-
-
- showPass dyn_flags
- (showSDoc (text "Compiling" <+> ppr (name_of_summary summary)))
-
- let verb = verbosity dyn_flags
- let location = ms_location summary
- let input_fn = unJust "compile:hs" (ml_hs_file location)
- let input_fnpp = unJust "compile:hspp" (ml_hspp_file location)
-
- when (verb >= 2) (hPutStrLn stderr ("compile: input file " ++ input_fnpp))
-
- opts <- getOptionsFromSource input_fnpp
- processArgs dynamic_flags opts []
- dyn_flags <- getDynFlags
-
- let hsc_lang = hscLang dyn_flags
- (basename, _) = splitFilename input_fn
-
- keep_hc <- readIORef v_Keep_hc_files
- keep_s <- readIORef v_Keep_s_files
-
- output_fn <-
- case hsc_lang of
- HscAsm | keep_s -> return (basename ++ '.':phaseInputExt As)
- | otherwise -> newTempName (phaseInputExt As)
- HscC | keep_hc -> return (basename ++ '.':phaseInputExt HCc)
- | otherwise -> newTempName (phaseInputExt HCc)
- HscJava -> newTempName "java" -- ToDo
-#ifdef ILX
- HscILX -> return (phaseInputExt Ilx2Il)
-#endif
- HscInterpreted -> return (error "no output file")
- HscNothing -> return (error "no output file")
-
- let dyn_flags' = dyn_flags { hscOutName = output_fn,
- hscStubCOutName = basename ++ "_stub.c",
- hscStubHOutName = basename ++ "_stub.h",
- extCoreName = basename ++ ".core" }
-
- -- figure out which header files to #include in a generated .hc file
- c_includes <- getPackageCIncludes
- cmdline_includes <- dynFlag cmdlineHcIncludes -- -#include options
-
- let cc_injects = unlines (map mk_include
- (c_includes ++ reverse cmdline_includes))
- mk_include h_file =
- case h_file of
- '"':_{-"-} -> "#include "++h_file
- '<':_ -> "#include "++h_file
- _ -> "#include \""++h_file++"\""
-
- writeIORef v_HCHeader cc_injects
-
- -- -no-recomp should also work with --make
- do_recomp <- readIORef v_Recomp
- let source_unchanged' = source_unchanged && do_recomp
-
- -- run the compiler
- hsc_result <- hscMain ghci_mode dyn_flags'
- (ms_mod summary) location
- source_unchanged' have_object old_iface hst hit pcs
-
- case hsc_result of
- HscFail pcs -> return (CompErrs pcs)
-
- HscNoRecomp pcs details iface -> return (CompOK pcs details iface Nothing)
-
- HscRecomp pcs details iface
- stub_h_exists stub_c_exists maybe_interpreted_code -> do
-
- let
- maybe_stub_o <- compileStub dyn_flags' stub_c_exists
- let stub_unlinked = case maybe_stub_o of
- Nothing -> []
- Just stub_o -> [ DotO stub_o ]
-
- (hs_unlinked, unlinked_time) <-
- case hsc_lang of
-
- -- in interpreted mode, just return the compiled code
- -- as our "unlinked" object.
- HscInterpreted ->
- case maybe_interpreted_code of
-#ifdef GHCI
- Just (bcos,itbl_env) -> do tm <- getClockTime
- return ([BCOs bcos itbl_env], tm)
-#endif
- Nothing -> panic "compile: no interpreted code"
-
- -- we're in batch mode: finish the compilation pipeline.
- _other -> do pipe <- genPipeline (StopBefore Ln) "" True
- hsc_lang (output_fn, getFileSuffix output_fn)
- -- runPipeline takes input_fn so it can split off
- -- the base name and use it as the base of
- -- the output object file.
- let (basename, suffix) = splitFilename input_fn
- (o_file,_) <-
- pipeLoop pipe (output_fn, getFileSuffix output_fn)
- False False
- basename suffix
- o_time <- getModificationTime o_file
- return ([DotO o_file], o_time)
-
- let linkable = LM unlinked_time (moduleName (ms_mod summary))
- (hs_unlinked ++ stub_unlinked)
-
- return (CompOK pcs details iface (Just linkable))
-
-
------------------------------------------------------------------------------
--- stub .h and .c files (for foreign export support)
-
-compileStub dflags stub_c_exists
- | not stub_c_exists = return Nothing
- | stub_c_exists = do
- -- compile the _stub.c file w/ gcc
- let stub_c = hscStubCOutName dflags
- pipeline <- genPipeline (StopBefore Ln) "" True defaultHscLang (stub_c,"c")
- (stub_o,_) <- runPipeline pipeline (stub_c,"c") False{-no linking-}
- False{-no -o option-}
- return (Just stub_o)
+-- -----------------------------------------------------------------------------
+-- Misc.
+
+hscNextPhase :: HscLang -> IO Phase
+hscNextPhase hsc_lang = do
+ split <- readIORef v_Split_object_files
+ return (case hsc_lang of
+ HscC -> HCc
+ HscAsm | split -> SplitMangle
+ | otherwise -> As
+ HscNothing -> HCc -- dummy (no output will be generated)
+ HscInterpreted -> HCc -- "" ""
+ _other -> HCc -- "" ""
+ )
+
+hscMaybeAdjustLang :: HscLang -> IO HscLang
+hscMaybeAdjustLang current_hsc_lang = do
+ todo <- readIORef v_GhcMode
+ keep_hc <- readIORef v_Keep_hc_files
+ let 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
+ | todo == StopBefore HCc || keep_hc = HscC
+ -- force -fvia-C when profiling or ticky-ticky is on
+ | opt_SccProfilingOn || opt_DoTickyProfiling = HscC
+ -- otherwise, stick to the plan
+ | otherwise = current_hsc_lang
+ return hsc_lang
projects / ghc-hetmet.git / blobdiff