----------------------------------------------------------------------------- -- -- Driver flags -- -- (c) The University of Glasgow 2000-2003 -- ----------------------------------------------------------------------------- module DriverFlags ( processArgs, OptKind(..), static_flags, dynamic_flags, addCmdlineHCInclude, buildStaticHscOpts, machdepCCOpts ) where #include "HsVersions.h" #include "../includes/ghcconfig.h" import MkIface ( showIface ) import DriverState import DriverPhases import DriverUtil import SysTools import CmdLineOpts import Config import Util import Panic import EXCEPTION import DATA_IOREF ( readIORef, writeIORef ) import System ( exitWith, ExitCode(..) ) import IO import Maybe import Monad import Char ----------------------------------------------------------------------------- -- Flags -- Flag parsing is now done in stages: -- -- * parse the initial list of flags and remove any flags understood -- by the driver only. Determine whether we're in multi-compilation -- or single-compilation mode (done in Main.main). -- -- * gather the list of "static" hsc flags, and assign them to the global -- static hsc flags variable. -- -- * build the inital DynFlags from the remaining flags. -- -- * complain if we've got any flags left over. -- -- * for each source file: grab the OPTIONS, and build a new DynFlags -- to pass to the compiler. ----------------------------------------------------------------------------- -- Process command-line data OptKind = NoArg (IO ()) -- flag with no argument | HasArg (String -> IO ()) -- flag has an argument (maybe prefix) | SepArg (String -> IO ()) -- flag has a separate argument | Prefix (String -> IO ()) -- flag is a prefix only | OptPrefix (String -> IO ()) -- flag may be a prefix | AnySuffix (String -> IO ()) -- flag is a prefix, pass whole arg to fn | PassFlag (String -> IO ()) -- flag with no arg, pass flag to fn | PrefixPred (String -> Bool) (String -> IO ()) | AnySuffixPred (String -> Bool) (String -> IO ()) processArgs :: [(String,OptKind)] -> [String] -> [String] -> IO [String] -- returns spare args processArgs _spec [] spare = return (reverse spare) processArgs spec args@(('-':arg):args') spare = do case findArg spec arg of Just (rest,action) -> do args' <- processOneArg action rest args processArgs spec args' spare Nothing -> processArgs spec args' (('-':arg):spare) processArgs spec (arg:args) spare = processArgs spec args (arg:spare) processOneArg :: OptKind -> String -> [String] -> IO [String] processOneArg action rest (dash_arg@('-':arg):args) = case action of NoArg io -> if rest == "" then io >> return args else unknownFlagErr dash_arg HasArg fio -> if rest /= "" then fio rest >> return args else case args of [] -> missingArgErr dash_arg (arg1:args1) -> fio arg1 >> return args1 SepArg fio -> case args of [] -> unknownFlagErr dash_arg (arg1:args1) -> fio arg1 >> return args1 Prefix fio -> if rest /= "" then fio rest >> return args else unknownFlagErr dash_arg PrefixPred p fio -> if rest /= "" then fio rest >> return args else unknownFlagErr dash_arg OptPrefix fio -> fio rest >> return args AnySuffix fio -> fio dash_arg >> return args AnySuffixPred p fio -> fio dash_arg >> return args PassFlag fio -> if rest /= "" then unknownFlagErr dash_arg else fio dash_arg >> return args findArg :: [(String,OptKind)] -> String -> Maybe (String,OptKind) findArg spec arg = case [ (remove_spaces rest, k) | (pat,k) <- spec, Just rest <- [maybePrefixMatch pat arg], arg_ok k rest arg ] of [] -> Nothing (one:_) -> Just one arg_ok (NoArg _) rest arg = null rest arg_ok (HasArg _) rest arg = True arg_ok (SepArg _) rest arg = null rest arg_ok (Prefix _) rest arg = notNull rest arg_ok (PrefixPred p _) rest arg = notNull rest && p rest arg_ok (OptPrefix _) rest arg = True arg_ok (PassFlag _) rest arg = null rest arg_ok (AnySuffix _) rest arg = True arg_ok (AnySuffixPred p _) rest arg = p arg ----------------------------------------------------------------------------- -- Static flags -- note that ordering is important in the following list: any flag which -- is a prefix flag (i.e. HasArg, Prefix, OptPrefix, AnySuffix) will override -- flags further down the list with the same prefix. static_flags = [ ------- help / version ---------------------------------------------- ( "?" , NoArg showGhcUsage) , ( "-help" , NoArg showGhcUsage) , ( "-print-libdir" , NoArg (do getTopDir >>= putStrLn exitWith ExitSuccess)) , ( "V" , NoArg showVersion) , ( "-version" , NoArg showVersion) , ( "-numeric-version", NoArg (do putStrLn cProjectVersion exitWith ExitSuccess)) ------- interfaces ---------------------------------------------------- , ( "-show-iface" , HasArg (\f -> do showIface f exitWith ExitSuccess)) ------- verbosity ---------------------------------------------------- , ( "n" , NoArg setDryRun ) ------- primary modes ------------------------------------------------ , ( "M" , PassFlag (setMode DoMkDependHS)) , ( "E" , PassFlag (setMode (StopBefore Hsc))) , ( "C" , PassFlag (\f -> do setMode (StopBefore HCc) f setLang HscC)) , ( "S" , PassFlag (setMode (StopBefore As))) , ( "c" , PassFlag (setMode (StopBefore Ln))) , ( "-make" , PassFlag (setMode DoMake)) , ( "-interactive" , PassFlag (setMode DoInteractive)) , ( "-mk-dll" , PassFlag (setMode DoMkDLL)) , ( "e" , HasArg (\s -> setMode (DoEval s) "-e")) -- -fno-code says to stop after Hsc but don't generate any code. , ( "fno-code" , PassFlag (\f -> do setMode (StopBefore HCc) f setLang HscNothing writeIORef v_Recomp False)) ------- GHCi ------------------------------------------------------- , ( "ignore-dot-ghci", NoArg (writeIORef v_Read_DotGHCi False) ) , ( "read-dot-ghci" , NoArg (writeIORef v_Read_DotGHCi True) ) ------- recompilation checker -------------------------------------- , ( "recomp" , NoArg (writeIORef v_Recomp True) ) , ( "no-recomp" , NoArg (writeIORef v_Recomp False) ) ------- ways -------------------------------------------------------- , ( "prof" , NoArg (addNoDups v_Ways WayProf) ) , ( "unreg" , NoArg (addNoDups v_Ways WayUnreg) ) , ( "ticky" , NoArg (addNoDups v_Ways WayTicky) ) , ( "parallel" , NoArg (addNoDups v_Ways WayPar) ) , ( "gransim" , NoArg (addNoDups v_Ways WayGran) ) , ( "smp" , NoArg (addNoDups v_Ways WaySMP) ) , ( "debug" , NoArg (addNoDups v_Ways WayDebug) ) , ( "ndp" , NoArg (addNoDups v_Ways WayNDP) ) , ( "threaded" , NoArg (addNoDups v_Ways WayThreaded) ) -- ToDo: user ways ------ RTS ways ----------------------------------------------------- ------ Debugging ---------------------------------------------------- , ( "dppr-noprags", PassFlag (add v_Opt_C) ) , ( "dppr-debug", PassFlag (add v_Opt_C) ) , ( "dppr-user-length", AnySuffix (add v_Opt_C) ) -- rest of the debugging flags are dynamic --------- Profiling -------------------------------------------------- , ( "auto-dicts" , NoArg (add v_Opt_C "-fauto-sccs-on-dicts") ) , ( "auto-all" , NoArg (add v_Opt_C "-fauto-sccs-on-all-toplevs") ) , ( "auto" , NoArg (add v_Opt_C "-fauto-sccs-on-exported-toplevs") ) , ( "caf-all" , NoArg (add v_Opt_C "-fauto-sccs-on-individual-cafs") ) -- "ignore-sccs" doesn't work (ToDo) , ( "no-auto-dicts" , NoArg (add v_Anti_opt_C "-fauto-sccs-on-dicts") ) , ( "no-auto-all" , NoArg (add v_Anti_opt_C "-fauto-sccs-on-all-toplevs") ) , ( "no-auto" , NoArg (add v_Anti_opt_C "-fauto-sccs-on-exported-toplevs") ) , ( "no-caf-all" , NoArg (add v_Anti_opt_C "-fauto-sccs-on-individual-cafs") ) ------- Miscellaneous ----------------------------------------------- , ( "no-link-chk" , NoArg (return ()) ) -- ignored for backwards compat , ( "no-hs-main" , NoArg (writeIORef v_NoHsMain True) ) , ( "main-is" , SepArg setMainIs ) ------- Output Redirection ------------------------------------------ , ( "odir" , HasArg (writeIORef v_Output_dir . Just) ) , ( "o" , SepArg (writeIORef v_Output_file . Just) ) , ( "osuf" , HasArg (writeIORef v_Object_suf) ) , ( "hcsuf" , HasArg (writeIORef v_HC_suf . Just) ) , ( "hisuf" , HasArg (writeIORef v_Hi_suf) ) , ( "hidir" , HasArg (writeIORef v_Hi_dir . Just) ) , ( "buildtag" , HasArg (writeIORef v_Build_tag) ) , ( "tmpdir" , HasArg setTmpDir) , ( "ohi" , HasArg (writeIORef v_Output_hi . Just) ) -- -odump? , ( "keep-hc-file" , AnySuffix (\_ -> writeIORef v_Keep_hc_files True) ) , ( "keep-s-file" , AnySuffix (\_ -> writeIORef v_Keep_s_files True) ) , ( "keep-raw-s-file", AnySuffix (\_ -> writeIORef v_Keep_raw_s_files True) ) #ifdef ILX , ( "keep-il-file" , AnySuffix (\_ -> writeIORef v_Keep_il_files True) ) , ( "keep-ilx-file" , AnySuffix (\_ -> writeIORef v_Keep_ilx_files True) ) #endif , ( "keep-tmp-files" , AnySuffix (\_ -> writeIORef v_Keep_tmp_files True) ) , ( "split-objs" , NoArg (if can_split then do writeIORef v_Split_object_files True add v_Opt_C "-fglobalise-toplev-names" else hPutStrLn stderr "warning: don't know how to split object files on this architecture" ) ) ------- Include/Import Paths ---------------------------------------- , ( "i" , OptPrefix (addToOrDeleteDirList v_Import_paths) ) , ( "I" , Prefix (addToDirList v_Include_paths) ) ------- Libraries --------------------------------------------------- , ( "L" , Prefix (addToDirList v_Library_paths) ) , ( "l" , AnySuffix (\s -> add v_Opt_l s >> add v_Opt_dll s) ) #ifdef darwin_TARGET_OS ------- Frameworks -------------------------------------------------- -- -framework-path should really be -F ... , ( "framework-path" , HasArg (addToDirList v_Framework_paths) ) , ( "framework" , HasArg (add v_Cmdline_frameworks) ) #endif ------- Packages ---------------------------------------------------- , ( "package-name" , HasArg (\s -> add v_Opt_C ("-inpackage="++s)) ) , ( "package-conf" , HasArg (readPackageConf) ) , ( "package" , HasArg (addPackage) ) , ( "syslib" , HasArg (addPackage) ) -- for compatibility w/ old vsns ------- Specific phases -------------------------------------------- , ( "pgmL" , HasArg setPgmL ) , ( "pgmP" , HasArg setPgmP ) , ( "pgmF" , HasArg setPgmF ) , ( "pgmc" , HasArg setPgmc ) , ( "pgmm" , HasArg setPgmm ) , ( "pgms" , HasArg setPgms ) , ( "pgma" , HasArg setPgma ) , ( "pgml" , HasArg setPgml ) , ( "pgmdll" , HasArg setPgmDLL ) #ifdef ILX , ( "pgmI" , HasArg setPgmI ) , ( "pgmi" , HasArg setPgmi ) #endif , ( "optdep" , HasArg (add v_Opt_dep) ) , ( "optl" , HasArg (add v_Opt_l) ) , ( "optdll" , HasArg (add v_Opt_dll) ) ----- Linker -------------------------------------------------------- , ( "no-link" , NoArg (writeIORef v_NoLink True) ) , ( "static" , NoArg (writeIORef v_Static True) ) , ( "dynamic" , NoArg (writeIORef v_Static False) ) , ( "rdynamic" , NoArg (return ()) ) -- ignored for compat w/ gcc ----- RTS opts ------------------------------------------------------ , ( "H" , HasArg (setHeapSize . fromIntegral . decodeSize) ) , ( "Rghc-timing" , NoArg (enableTimingStats) ) ------ Compiler flags ----------------------------------------------- , ( "fno-asm-mangling" , NoArg (writeIORef v_Do_asm_mangling False) ) , ( "fexcess-precision" , NoArg (do writeIORef v_Excess_precision True add v_Opt_C "-fexcess-precision")) -- All other "-fno-" options cancel out "-f" on the hsc cmdline , ( "fno-", PrefixPred (\s -> isStaticHscFlag ("f"++s)) (\s -> add v_Anti_opt_C ("-f"++s)) ) -- Pass all remaining "-f" options to hsc , ( "f", AnySuffixPred (isStaticHscFlag) (add v_Opt_C) ) ] dynamic_flags = [ ( "cpp", NoArg (updDynFlags (\s -> s{ cppFlag = True })) ) , ( "F", NoArg (updDynFlags (\s -> s{ ppFlag = True })) ) , ( "#include", HasArg (addCmdlineHCInclude) ) , ( "v", OptPrefix (setVerbosity) ) , ( "optL", HasArg (addOpt_L) ) , ( "optP", HasArg (addOpt_P) ) , ( "optF", HasArg (addOpt_F) ) , ( "optc", HasArg (addOpt_c) ) , ( "optm", HasArg (addOpt_m) ) , ( "opta", HasArg (addOpt_a) ) #ifdef ILX , ( "optI", HasArg (addOpt_I) ) , ( "opti", HasArg (addOpt_i) ) #endif ------ HsCpp opts --------------------------------------------------- , ( "D", AnySuffix addOpt_P ) , ( "U", AnySuffix addOpt_P ) ------ Debugging ---------------------------------------------------- , ( "dstg-stats", NoArg (writeIORef v_StgStats True) ) , ( "ddump-cmm", NoArg (setDynFlag Opt_D_dump_cmm) ) , ( "ddump-asm", NoArg (setDynFlag Opt_D_dump_asm) ) , ( "ddump-cpranal", NoArg (setDynFlag Opt_D_dump_cpranal) ) , ( "ddump-deriv", NoArg (setDynFlag Opt_D_dump_deriv) ) , ( "ddump-ds", NoArg (setDynFlag Opt_D_dump_ds) ) , ( "ddump-flatC", NoArg (setDynFlag Opt_D_dump_flatC) ) , ( "ddump-foreign", NoArg (setDynFlag Opt_D_dump_foreign) ) , ( "ddump-inlinings", NoArg (setDynFlag Opt_D_dump_inlinings) ) , ( "ddump-occur-anal", NoArg (setDynFlag Opt_D_dump_occur_anal) ) , ( "ddump-parsed", NoArg (setDynFlag Opt_D_dump_parsed) ) , ( "ddump-rn", NoArg (setDynFlag Opt_D_dump_rn) ) , ( "ddump-simpl", NoArg (setDynFlag Opt_D_dump_simpl) ) , ( "ddump-simpl-iterations", NoArg (setDynFlag Opt_D_dump_simpl_iterations) ) , ( "ddump-spec", NoArg (setDynFlag Opt_D_dump_spec) ) , ( "ddump-prep", NoArg (setDynFlag Opt_D_dump_prep) ) , ( "ddump-stg", NoArg (setDynFlag Opt_D_dump_stg) ) , ( "ddump-stranal", NoArg (setDynFlag Opt_D_dump_stranal) ) , ( "ddump-tc", NoArg (setDynFlag Opt_D_dump_tc) ) , ( "ddump-types", NoArg (setDynFlag Opt_D_dump_types) ) , ( "ddump-rules", NoArg (setDynFlag Opt_D_dump_rules) ) , ( "ddump-cse", NoArg (setDynFlag Opt_D_dump_cse) ) , ( "ddump-worker-wrapper", NoArg (setDynFlag Opt_D_dump_worker_wrapper) ) , ( "dshow-passes", NoArg (setVerbosity "2") ) , ( "ddump-rn-trace", NoArg (setDynFlag Opt_D_dump_rn_trace) ) , ( "ddump-if-trace", NoArg (setDynFlag Opt_D_dump_if_trace) ) , ( "ddump-tc-trace", NoArg (setDynFlag Opt_D_dump_tc_trace) ) , ( "ddump-splices", NoArg (setDynFlag Opt_D_dump_splices) ) , ( "ddump-rn-stats", NoArg (setDynFlag Opt_D_dump_rn_stats) ) , ( "ddump-opt-cmm", NoArg (setDynFlag Opt_D_dump_opt_cmm) ) , ( "ddump-simpl-stats", NoArg (setDynFlag Opt_D_dump_simpl_stats) ) , ( "ddump-bcos", NoArg (setDynFlag Opt_D_dump_BCOs) ) , ( "dsource-stats", NoArg (setDynFlag Opt_D_source_stats) ) , ( "dverbose-core2core", NoArg (setDynFlag Opt_D_verbose_core2core) ) , ( "dverbose-stg2stg", NoArg (setDynFlag Opt_D_verbose_stg2stg) ) , ( "ddump-hi-diffs", NoArg (setDynFlag Opt_D_dump_hi_diffs) ) , ( "ddump-hi", NoArg (setDynFlag Opt_D_dump_hi) ) , ( "ddump-minimal-imports", NoArg (setDynFlag Opt_D_dump_minimal_imports) ) , ( "ddump-vect", NoArg (setDynFlag Opt_D_dump_vect) ) , ( "dcore-lint", NoArg (setDynFlag Opt_DoCoreLinting) ) , ( "dstg-lint", NoArg (setDynFlag Opt_DoStgLinting) ) , ( "dcmm-lint", NoArg (setDynFlag Opt_DoCmmLinting) ) ------ Machine dependant (-m) stuff --------------------------- , ( "monly-2-regs", NoArg (updDynFlags (\s -> s{stolen_x86_regs = 2}) )) , ( "monly-3-regs", NoArg (updDynFlags (\s -> s{stolen_x86_regs = 3}) )) , ( "monly-4-regs", NoArg (updDynFlags (\s -> s{stolen_x86_regs = 4}) )) ------ Warning opts ------------------------------------------------- , ( "W" , NoArg (mapM_ setDynFlag minusWOpts) ) , ( "Werror" , NoArg (setDynFlag Opt_WarnIsError) ) , ( "Wall" , NoArg (mapM_ setDynFlag minusWallOpts) ) , ( "Wnot" , NoArg (mapM_ unSetDynFlag minusWallOpts) ) /* DEPREC */ , ( "w" , NoArg (mapM_ unSetDynFlag minusWallOpts) ) ------ Optimisation flags ------------------------------------------ , ( "O" , NoArg (setOptLevel 1)) , ( "Onot" , NoArg (setOptLevel 0)) , ( "O" , PrefixPred (all isDigit) (setOptLevel . read)) , ( "fmax-simplifier-iterations", PrefixPred (all isDigit) (\n -> updDynFlags (\dfs -> dfs{ maxSimplIterations = read n })) ) , ( "frule-check", SepArg (\s -> updDynFlags (\dfs -> dfs{ ruleCheck = Just s }))) ------ Compiler flags ----------------------------------------------- , ( "fasm", AnySuffix (\_ -> setLang HscAsm) ) , ( "fvia-c", NoArg (setLang HscC) ) , ( "fvia-C", NoArg (setLang HscC) ) , ( "filx", NoArg (setLang HscILX) ) , ( "fglasgow-exts", NoArg (mapM_ setDynFlag glasgowExtsFlags) ) , ( "fno-glasgow-exts", NoArg (mapM_ unSetDynFlag glasgowExtsFlags) ) -- "active negatives" , ( "fno-implicit-prelude", NoArg (setDynFlag Opt_NoImplicitPrelude) ) , ( "fno-monomorphism-restriction", NoArg (setDynFlag Opt_NoMonomorphismRestriction) ) -- the rest of the -f* and -fno-* flags , ( "fno-", PrefixPred (\f -> isFFlag f) (\f -> unSetDynFlag (getFFlag f)) ) , ( "f", PrefixPred (\f -> isFFlag f) (\f -> setDynFlag (getFFlag f)) ) ] -- these -f flags can all be reversed with -fno- fFlags = [ ( "warn-duplicate-exports", Opt_WarnDuplicateExports ), ( "warn-hi-shadowing", Opt_WarnHiShadows ), ( "warn-incomplete-patterns", Opt_WarnIncompletePatterns ), ( "warn-missing-fields", Opt_WarnMissingFields ), ( "warn-missing-methods", Opt_WarnMissingMethods ), ( "warn-missing-signatures", Opt_WarnMissingSigs ), ( "warn-name-shadowing", Opt_WarnNameShadowing ), ( "warn-overlapping-patterns", Opt_WarnOverlappingPatterns ), ( "warn-simple-patterns", Opt_WarnSimplePatterns ), ( "warn-type-defaults", Opt_WarnTypeDefaults ), ( "warn-unused-binds", Opt_WarnUnusedBinds ), ( "warn-unused-imports", Opt_WarnUnusedImports ), ( "warn-unused-matches", Opt_WarnUnusedMatches ), ( "warn-deprecations", Opt_WarnDeprecations ), ( "fi", Opt_FFI ), -- support `-ffi'... ( "ffi", Opt_FFI ), -- ...and also `-fffi' ( "arrows", Opt_Arrows ), -- arrow syntax ( "parr", Opt_PArr ), ( "th", Opt_TH ), ( "implicit-params", Opt_ImplicitParams ), ( "allow-overlapping-instances", Opt_AllowOverlappingInstances ), ( "allow-undecidable-instances", Opt_AllowUndecidableInstances ), ( "allow-incoherent-instances", Opt_AllowIncoherentInstances ), ( "generics", Opt_Generics ), ( "strictness", Opt_Strictness ), ( "full-laziness", Opt_FullLaziness ), ( "cse", Opt_CSE ), ( "ignore-interface-pragmas", Opt_IgnoreInterfacePragmas ), ( "omit-interface-pragmas", Opt_OmitInterfacePragmas ), ( "do-lambda-eta-expansion", Opt_DoLambdaEtaExpansion ), ( "ignore-asserts", Opt_IgnoreAsserts ), ( "do-eta-reduction", Opt_DoEtaReduction ), ( "case-merge", Opt_CaseMerge ), ( "unbox-strict-fields", Opt_UnboxStrictFields ) ] glasgowExtsFlags = [ Opt_GlasgowExts, Opt_FFI, Opt_TH, Opt_ImplicitParams ] isFFlag f = f `elem` (map fst fFlags) getFFlag f = fromJust (lookup f fFlags) ----------------------------------------------------------------------------- -- convert sizes like "3.5M" into integers decodeSize :: String -> Integer decodeSize str | c == "" = truncate n | c == "K" || c == "k" = truncate (n * 1000) | c == "M" || c == "m" = truncate (n * 1000 * 1000) | c == "G" || c == "g" = truncate (n * 1000 * 1000 * 1000) | otherwise = throwDyn (CmdLineError ("can't decode size: " ++ str)) where (m, c) = span pred str n = read m :: Double pred c = isDigit c || c == '.' ----------------------------------------------------------------------------- -- RTS Hooks #if __GLASGOW_HASKELL__ >= 504 foreign import ccall unsafe "setHeapSize" setHeapSize :: Int -> IO () foreign import ccall unsafe "enableTimingStats" enableTimingStats :: IO () #else foreign import "setHeapSize" unsafe setHeapSize :: Int -> IO () foreign import "enableTimingStats" unsafe enableTimingStats :: IO () #endif ----------------------------------------------------------------------------- -- Build the Hsc static command line opts buildStaticHscOpts :: IO [String] buildStaticHscOpts = do opt_C_ <- getStaticOpts v_Opt_C -- misc hsc opts from the command line -- take into account -fno-* flags by removing the equivalent -f* -- flag from our list. anti_flags <- getStaticOpts v_Anti_opt_C let basic_opts = opt_C_ filtered_opts = filter (`notElem` anti_flags) basic_opts static <- (do s <- readIORef v_Static; if s then return "-static" else return "") return ( static : filtered_opts ) setMainIs :: String -> IO () setMainIs arg | not (null main_mod) -- The arg looked like "Foo.baz" = do { writeIORef v_MainFunIs (Just main_fn) ; writeIORef v_MainModIs (Just main_mod) } | isUpper (head main_fn) -- The arg looked like "Foo" = writeIORef v_MainModIs (Just main_fn) | otherwise -- The arg looked like "baz" = writeIORef v_MainFunIs (Just main_fn) where (main_mod, main_fn) = split_longest_prefix arg (== '.') ----------------------------------------------------------------------------- -- Via-C compilation stuff -- flags returned are: ( all C compilations -- , registerised HC compilations -- ) machdepCCOpts | prefixMatch "alpha" cTARGETPLATFORM = return ( ["-static", "-w", "-mieee" #ifdef HAVE_THREADED_RTS_SUPPORT , "-D_REENTRANT" #endif ], [] ) -- For now, to suppress the gcc warning "call-clobbered -- register used for global register variable", we simply -- disable all warnings altogether using the -w flag. Oh well. | prefixMatch "hppa" cTARGETPLATFORM -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi! -- (very nice, but too bad the HP /usr/include files don't agree.) = return ( ["-static", "-D_HPUX_SOURCE"], [] ) | prefixMatch "m68k" cTARGETPLATFORM -- -fno-defer-pop : for the .hc files, we want all the pushing/ -- popping of args to routines to be explicit; if we let things -- be deferred 'til after an STGJUMP, imminent death is certain! -- -- -fomit-frame-pointer : *don't* -- It's better to have a6 completely tied up being a frame pointer -- rather than let GCC pick random things to do with it. -- (If we want to steal a6, then we would try to do things -- as on iX86, where we *do* steal the frame pointer [%ebp].) = return ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] ) | prefixMatch "i386" cTARGETPLATFORM -- -fno-defer-pop : basically the same game as for m68k -- -- -fomit-frame-pointer : *must* in .hc files; because we're stealing -- the fp (%ebp) for our register maps. = do n_regs <- dynFlag stolen_x86_regs sta <- readIORef v_Static return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else "" -- , if suffixMatch "mingw32" cTARGETPLATFORM then "-mno-cygwin" else "" ], [ "-fno-defer-pop", #ifdef HAVE_GCC_MNO_OMIT_LFPTR -- Some gccs are configured with -- -momit-leaf-frame-pointer on by default, and it -- apparently takes precedence over -- -fomit-frame-pointer, so we disable it first here. "-mno-omit-leaf-frame-pointer", #endif "-fomit-frame-pointer", -- we want -fno-builtin, because when gcc inlines -- built-in functions like memcpy() it tends to -- run out of registers, requiring -monly-n-regs "-fno-builtin", "-DSTOLEN_X86_REGS="++show n_regs ] ) | prefixMatch "ia64" cTARGETPLATFORM = return ( [], ["-fomit-frame-pointer", "-G0"] ) | prefixMatch "x86_64" cTARGETPLATFORM = return ( [], ["-fomit-frame-pointer"] ) | prefixMatch "mips" cTARGETPLATFORM = return ( ["-static"], [] ) | prefixMatch "sparc" cTARGETPLATFORM = return ( [], ["-w"] ) -- For now, to suppress the gcc warning "call-clobbered -- register used for global register variable", we simply -- disable all warnings altogether using the -w flag. Oh well. | prefixMatch "powerpc-apple-darwin" cTARGETPLATFORM -- -no-cpp-precomp: -- Disable Apple's precompiling preprocessor. It's a great thing -- for "normal" programs, but it doesn't support register variable -- declarations. -- -mdynamic-no-pic: -- As we don't support haskell code in shared libraries anyway, -- we might as well turn of PIC code generation and save space and time. -- This is completely optional. = return ( ["-no-cpp-precomp","-mdynamic-no-pic"], [] ) | otherwise = return ( [], [] ) ----------------------------------------------------------------------------- -- local utils addOpt_L a = updDynFlags (\s -> s{opt_L = a : opt_L s}) addOpt_P a = updDynFlags (\s -> s{opt_P = a : opt_P s}) addOpt_F a = updDynFlags (\s -> s{opt_F = a : opt_F s}) addOpt_c a = updDynFlags (\s -> s{opt_c = a : opt_c s}) addOpt_a a = updDynFlags (\s -> s{opt_a = a : opt_a s}) addOpt_m a = updDynFlags (\s -> s{opt_m = a : opt_m s}) #ifdef ILX addOpt_I a = updDynFlags (\s -> s{opt_I = a : opt_I s}) addOpt_i a = updDynFlags (\s -> s{opt_i = a : opt_i s}) #endif setVerbosity "" = updDynFlags (\dfs -> dfs{ verbosity = 3 }) setVerbosity n | all isDigit n = updDynFlags (\dfs -> dfs{ verbosity = read n }) | otherwise = throwDyn (UsageError "can't parse verbosity flag (-v)") addCmdlineHCInclude a = updDynFlags (\s -> s{cmdlineHcIncludes = a : cmdlineHcIncludes s}) -- ----------------------------------------------------------------------------- -- Version and usage messages showVersion :: IO () showVersion = do putStrLn (cProjectName ++ ", version " ++ cProjectVersion) exitWith ExitSuccess showGhcUsage = do (ghc_usage_path,ghci_usage_path) <- getUsageMsgPaths mode <- readIORef v_GhcMode let usage_path | mode == DoInteractive = ghci_usage_path | otherwise = ghc_usage_path usage <- readFile usage_path dump usage exitWith ExitSuccess where dump "" = return () dump ('$':'$':s) = hPutStr stderr progName >> dump s dump (c:s) = hPutChar stderr c >> dump s