-----------------------------------------------------------------------------
--- $Id: DriverFlags.hs,v 1.6 2000/10/18 09:40:18 simonmar Exp $
--
-- Driver flags
--
--- (c) Simon Marlow 2000
+-- (c) The University of Glasgow 2000-2003
--
-----------------------------------------------------------------------------
-module DriverFlags where
+module DriverFlags (
+ processDynamicFlags,
+ processStaticFlags,
+
+ addCmdlineHCInclude,
+ buildStaticHscOpts,
+ machdepCCOpts,
+
+ processArgs, OptKind(..), -- for DriverMkDepend only
+ ) where
#include "HsVersions.h"
-import PackageMaintenance
+import MkIface ( showIface )
import DriverState
+import DriverPhases
import DriverUtil
+import SysTools
import CmdLineOpts
import Config
import Util
-import CmdLineOpts
+import Panic
+import FastString ( mkFastString )
+
+import EXCEPTION
+import DATA_IOREF ( IORef, readIORef, writeIORef )
-import Exception
-import IOExts
+import System ( exitWith, ExitCode(..) )
import IO
-import System
+import Maybe
+import Monad
import Char
-----------------------------------------------------------------------------
--
-- * 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.
+-- 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.
-----------------------------------------------------------------------------
-- Process command-line
+processStaticFlags :: [String] -> IO [String]
+processStaticFlags opts = processArgs static_flags opts []
+
data OptKind
= NoArg (IO ()) -- flag with no argument
| HasArg (String -> IO ()) -- flag has an argument (maybe prefix)
| AnySuffixPred (String -> Bool) (String -> IO ())
processArgs :: [(String,OptKind)] -> [String] -> [String]
- -> IO [String] -- returns spare args
+ -> IO [String] -- returns spare args
processArgs _spec [] spare = return (reverse spare)
-processArgs spec args@(arg@('-':_):args') spare = do
+
+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)
+ 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)
if rest /= ""
then fio rest >> return args
else case args of
- [] -> unknownFlagErr dash_arg
+ [] -> missingArgErr dash_arg
(arg1:args1) -> fio arg1 >> return args1
SepArg fio ->
findArg :: [(String,OptKind)] -> String -> Maybe (String,OptKind)
findArg spec arg
= case [ (remove_spaces rest, k)
- | (pat,k) <- spec, Just rest <- [my_prefix_match pat arg],
- arg_ok k arg rest ]
+ | (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 = not (null rest)
-arg_ok (PrefixPred p _) rest arg = not (null rest) && p 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 = not (null rest)
-arg_ok (AnySuffixPred p _) rest arg = not (null rest) && p arg
+arg_ok (AnySuffix _) rest arg = True
+arg_ok (AnySuffixPred p _) rest arg = p arg
-----------------------------------------------------------------------------
-- Static flags
-- flags further down the list with the same prefix.
static_flags =
- [ ------- help -------------------------------------------------------
- ( "?" , NoArg long_usage)
- , ( "-help" , NoArg long_usage)
-
-
- ------- version ----------------------------------------------------
- , ( "-version" , NoArg (do hPutStrLn stdout (cProjectName
- ++ ", version " ++ version_str)
- exitWith ExitSuccess))
- , ( "-numeric-version", NoArg (do hPutStrLn stdout version_str
+ [ ------- 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 ----------------------------------------------------
- , ( "v" , NoArg (writeIORef verbose True) )
- , ( "n" , NoArg (writeIORef dry_run True) )
+ , ( "n" , NoArg setDryRun )
+
+ ------- primary modes ------------------------------------------------
+ , ( "M" , PassFlag (setMode DoMkDependHS))
+ , ( "E" , PassFlag (setMode (StopBefore anyHsc)))
+ , ( "C" , PassFlag (\f -> do setMode (StopBefore HCc) f
+ setTarget HscC))
+ , ( "S" , PassFlag (setMode (StopBefore As)))
+ , ( "-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
+ setTarget HscNothing
+ setRecompFlag 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 recomp True) )
- , ( "no-recomp" , NoArg (writeIORef recomp False) )
+ , ( "recomp" , NoArg (setRecompFlag True) )
+ , ( "no-recomp" , NoArg (setRecompFlag False) )
------- ways --------------------------------------------------------
- , ( "prof" , NoArg (addNoDups ways WayProf) )
- , ( "unreg" , NoArg (addNoDups ways WayUnreg) )
- , ( "dll" , NoArg (addNoDups ways WayDll) )
- , ( "ticky" , NoArg (addNoDups ways WayTicky) )
- , ( "parallel" , NoArg (addNoDups ways WayPar) )
- , ( "gransim" , NoArg (addNoDups ways WayGran) )
- , ( "smp" , NoArg (addNoDups ways WaySMP) )
- , ( "debug" , NoArg (addNoDups ways WayDebug) )
+ , ( "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 opt_C) )
- , ( "dppr-debug", PassFlag (add opt_C) )
- , ( "dppr-user-length", AnySuffix (add opt_C) )
+ , ( "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
- ------- Interface files ---------------------------------------------
- , ( "hi" , NoArg (writeIORef produceHi True) )
- , ( "nohi" , NoArg (writeIORef produceHi False) )
-
--------- Profiling --------------------------------------------------
- , ( "auto-dicts" , NoArg (add opt_C "-fauto-sccs-on-dicts") )
- , ( "auto-all" , NoArg (add opt_C "-fauto-sccs-on-all-toplevs") )
- , ( "auto" , NoArg (add opt_C "-fauto-sccs-on-exported-toplevs") )
- , ( "caf-all" , NoArg (add opt_C "-fauto-sccs-on-individual-cafs") )
+ , ( "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 anti_opt_C "-fauto-sccs-on-dicts") )
- , ( "no-auto-all" , NoArg (add anti_opt_C "-fauto-sccs-on-all-toplevs") )
- , ( "no-auto" , NoArg (add anti_opt_C "-fauto-sccs-on-exported-toplevs") )
- , ( "no-caf-all" , NoArg (add anti_opt_C "-fauto-sccs-on-individual-cafs") )
+ , ( "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 output_dir . Just) )
- , ( "o" , SepArg (writeIORef output_file . Just) )
- , ( "osuf" , HasArg (writeIORef output_suf . Just) )
- , ( "hisuf" , HasArg (writeIORef hi_suf) )
- , ( "tmpdir" , HasArg (writeIORef v_TmpDir . (++ "/")) )
- , ( "ohi" , HasArg (\s -> case s of
- "-" -> writeIORef hi_on_stdout True
- _ -> writeIORef output_hi (Just s)) )
+ , ( "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 ) )
+ , ( "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 keep_hc_files True) )
- , ( "keep-s-file" , AnySuffix (\_ -> writeIORef keep_s_files True) )
- , ( "keep-raw-s-file", AnySuffix (\_ -> writeIORef keep_raw_s_files True) )
- , ( "keep-tmp-files" , AnySuffix (\_ -> writeIORef keep_tmp_files True) )
+ , ( "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 split_object_files True
- add opt_C "-fglobalise-toplev-names"
--- TODO!!!!! add opt_c "-DUSE_SPLIT_MARKERS"
+ 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"
+ "warning: don't know how to split object files on this architecture"
) )
-
+
------- Include/Import Paths ----------------------------------------
- , ( "i" , OptPrefix (addToDirList import_paths) )
- , ( "I" , Prefix (addToDirList include_paths) )
+ , ( "I" , Prefix (addToDirList v_Include_paths) )
------- Libraries ---------------------------------------------------
- , ( "L" , Prefix (addToDirList library_paths) )
- , ( "l" , Prefix (add cmdline_libraries) )
-
- ------- Packages ----------------------------------------------------
- , ( "package-name" , HasArg (\s -> add opt_C ("-inpackage="++s)) )
-
- , ( "package" , HasArg (addPackage) )
- , ( "syslib" , HasArg (addPackage) ) -- for compatibility w/ old vsns
-
- , ( "-list-packages" , NoArg (listPackages) )
- , ( "-add-package" , NoArg (newPackage) )
- , ( "-delete-package" , SepArg (deletePackage) )
-
+ , ( "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
------- Specific phases --------------------------------------------
- , ( "pgmL" , HasArg (writeIORef pgm_L) )
- , ( "pgmP" , HasArg (writeIORef pgm_P) )
- , ( "pgmc" , HasArg (writeIORef pgm_c) )
- , ( "pgmm" , HasArg (writeIORef pgm_m) )
- , ( "pgms" , HasArg (writeIORef pgm_s) )
- , ( "pgma" , HasArg (writeIORef pgm_a) )
- , ( "pgml" , HasArg (writeIORef pgm_l) )
-
- , ( "optdep" , HasArg (add opt_dep) )
- , ( "optl" , HasArg (add opt_l) )
- , ( "optdll" , HasArg (add opt_dll) )
-
- ------ Warning opts -------------------------------------------------
- , ( "W" , NoArg (writeIORef warning_opt W_) )
- , ( "Wall" , NoArg (writeIORef warning_opt W_all) )
- , ( "Wnot" , NoArg (writeIORef warning_opt W_not) )
- , ( "w" , NoArg (writeIORef warning_opt W_not) )
+ , ( "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 --------------------------------------------------------
- , ( "static" , NoArg (writeIORef static True) )
-
- ------ Compiler flags -----------------------------------------------
- , ( "O2-for-C" , NoArg (writeIORef opt_minus_o2_for_C True) )
- , ( "O" , OptPrefix (setOptLevel) )
-
- , ( "fasm" , OptPrefix (\_ -> writeIORef hsc_lang HscAsm) )
-
- , ( "fvia-c" , NoArg (writeIORef hsc_lang HscC) )
- , ( "fvia-C" , NoArg (writeIORef hsc_lang HscC) )
-
- , ( "fno-asm-mangling" , NoArg (writeIORef do_asm_mangling False) )
-
- , ( "fmax-simplifier-iterations",
- Prefix (writeIORef opt_MaxSimplifierIterations . read) )
+ , ( "c" , NoArg (writeIORef v_NoLink True) )
+ , ( "no-link" , NoArg (writeIORef v_NoLink True) ) -- Deprecated
+ , ( "static" , NoArg (writeIORef v_Static True) )
+ , ( "dynamic" , NoArg (writeIORef v_Static False) )
+ , ( "rdynamic" , NoArg (return ()) ) -- ignored for compat w/ gcc
- , ( "fusagesp" , NoArg (do writeIORef opt_UsageSPInf True
- add opt_C "-fusagesp-on") )
+ ----- RTS opts ------------------------------------------------------
+ , ( "H" , HasArg (setHeapSize . fromIntegral . decodeSize) )
+ , ( "Rghc-timing" , NoArg (enableTimingStats) )
- , ( "fexcess-precision" , NoArg (do writeIORef excess_precision True
- add opt_C "-fexcess-precision"))
+ ------ Compiler flags -----------------------------------------------
+ , ( "fno-asm-mangling" , NoArg (writeIORef v_Do_asm_mangling False) )
- -- flags that are "active negatives"
- , ( "fno-implicit-prelude" , PassFlag (add opt_C) )
- , ( "fno-prune-tydecls" , PassFlag (add opt_C) )
- , ( "fno-prune-instdecls" , PassFlag (add opt_C) )
- , ( "fno-pre-inlining" , PassFlag (add opt_C) )
+ , ( "fexcess-precision" , NoArg (do writeIORef v_Excess_precision True
+ add v_Opt_C "-fexcess-precision"))
-- All other "-fno-<blah>" options cancel out "-f<blah>" on the hsc cmdline
, ( "fno-", PrefixPred (\s -> isStaticHscFlag ("f"++s))
- (\s -> add anti_opt_C ("-f"++s)) )
+ (\s -> add v_Anti_opt_C ("-f"++s)) )
-- Pass all remaining "-f<blah>" options to hsc
- , ( "f", AnySuffixPred (isStaticHscFlag) (add opt_C) )
+ , ( "f", AnySuffixPred (isStaticHscFlag) (add v_Opt_C) )
]
------------------------------------------------------------------------------
--- parse the dynamic arguments
-
-GLOBAL_VAR(v_InitDynFlags, error "no InitDynFlags", DynFlags)
-GLOBAL_VAR(v_DynFlags, error "no DynFlags", DynFlags)
-
-setDynFlag f = do
- dfs <- readIORef v_DynFlags
- writeIORef v_DynFlags dfs{ flags = f : flags dfs }
-
-unSetDynFlag f = do
- dfs <- readIORef v_DynFlags
- writeIORef v_DynFlags dfs{ flags = filter (/= f) (flags dfs) }
-
dynamic_flags = [
- ( "cpp", NoArg (updateState (\s -> s{ cpp_flag = True })) )
+ ( "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
+
+ ------- Packages ----------------------------------------------------
+ , ( "package-conf" , HasArg extraPkgConf_ )
+ , ( "no-user-package-conf", NoArg noUserPkgConf_ )
+ , ( "package-name" , HasArg ignorePackage ) -- for compatibility
+ , ( "package" , HasArg exposePackage )
+ , ( "hide-package" , HasArg hidePackage )
+ , ( "ignore-package" , HasArg ignorePackage )
+ , ( "syslib" , HasArg exposePackage ) -- for compatibility
------ HsCpp opts ---------------------------------------------------
- , ( "D", Prefix (\s -> addOpt_P ("-D'"++s++"'") ) )
- , ( "U", Prefix (\s -> addOpt_P ("-U'"++s++"'") ) )
+ , ( "D", AnySuffix addOpt_P )
+ , ( "U", AnySuffix addOpt_P )
+
+ ------- Paths & stuff -----------------------------------------------
+ , ( "i" , OptPrefix addImportPath )
------ Debugging ----------------------------------------------------
- , ( "dstg-stats", NoArg (writeIORef opt_StgStats True) )
-
- , ( "ddump_all", NoArg (setDynFlag Opt_D_dump_all) )
- , ( "ddump_most", NoArg (setDynFlag Opt_D_dump_most) )
- , ( "ddump_absC", NoArg (setDynFlag Opt_D_dump_absC) )
- , ( "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_realC", NoArg (setDynFlag Opt_D_dump_realC) )
- , ( "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_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_usagesp", NoArg (setDynFlag Opt_D_dump_usagesp) )
- , ( "ddump_cse", NoArg (setDynFlag Opt_D_dump_cse) )
- , ( "ddump_worker_wrapper", NoArg (setDynFlag Opt_D_dump_worker_wrapper) )
- , ( "dshow_passes", NoArg (setDynFlag Opt_D_show_passes) )
- , ( "ddump_rn_trace", NoArg (setDynFlag Opt_D_dump_rn_trace) )
- , ( "ddump_rn_stats", NoArg (setDynFlag Opt_D_dump_rn_stats) )
- , ( "ddump_stix", NoArg (setDynFlag Opt_D_dump_stix) )
- , ( "ddump_simpl_stats", NoArg (setDynFlag Opt_D_dump_simpl_stats) )
- , ( "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_minimal_imports", NoArg (setDynFlag Opt_D_dump_minimal_imports) )
- , ( "DoCoreLinting", NoArg (setDynFlag Opt_DoCoreLinting) )
- , ( "DoStgLinting", NoArg (setDynFlag Opt_DoStgLinting) )
- , ( "DoUSPLinting", NoArg (setDynFlag Opt_DoUSPLinting) )
-
- ------ Warnings ----------------------------------------------------
-
- , ( "-fwarn-duplicate-exports", NoArg (setDynFlag Opt_WarnDuplicateExports) )
- , ( "-fwarn-hi-shadowing", NoArg (setDynFlag Opt_WarnHiShadows) )
- , ( "-fwarn-incomplete-patterns", NoArg (setDynFlag Opt_WarnIncompletePatterns) )
- , ( "-fwarn-missing-fields", NoArg (setDynFlag Opt_WarnMissingFields) )
- , ( "-fwarn-missing-methods", NoArg (setDynFlag Opt_WarnMissingMethods))
- , ( "-fwarn-missing-signatures", NoArg (setDynFlag Opt_WarnMissingSigs) )
- , ( "-fwarn-name-shadowing", NoArg (setDynFlag Opt_WarnNameShadowin) )
- , ( "-fwarn-overlapping-patterns", NoArg (setDynFlag Opt_WarnOverlappingPatterns )) )
- , ( "-fwarn-simple-patterns", NoArg (setDynFlag Opt_WarnSimplePatterns))
- , ( "-fwarn-type-defaults", NoArg (setDynFlag Opt_WarnTypeDefaults) )
- , ( "-fwarn-unused-binds", NoArg (setDynFlag Opt_WarnUnusedBinds) )
- , ( "-fwarn-unused-imports", NoArg (setDynFlag Opt_WarnUnusedImports) )
- , ( "-fwarn-unused-matches", NoArg (setDynFlag Opt_WarnUnusedMatches) )
- , ( "-fwarn-deprecations", NoArg (setDynFlag Opt_WarnDeprecations) )
+ , ( "dstg-stats", NoArg (writeIORef v_StgStats True) )
+
+ , ( "ddump-cmm", setDumpFlag Opt_D_dump_cmm)
+ , ( "ddump-asm", setDumpFlag Opt_D_dump_asm)
+ , ( "ddump-cpranal", setDumpFlag Opt_D_dump_cpranal)
+ , ( "ddump-deriv", setDumpFlag Opt_D_dump_deriv)
+ , ( "ddump-ds", setDumpFlag Opt_D_dump_ds)
+ , ( "ddump-flatC", setDumpFlag Opt_D_dump_flatC)
+ , ( "ddump-foreign", setDumpFlag Opt_D_dump_foreign)
+ , ( "ddump-inlinings", setDumpFlag Opt_D_dump_inlinings)
+ , ( "ddump-occur-anal", setDumpFlag Opt_D_dump_occur_anal)
+ , ( "ddump-parsed", setDumpFlag Opt_D_dump_parsed)
+ , ( "ddump-rn", setDumpFlag Opt_D_dump_rn)
+ , ( "ddump-simpl", setDumpFlag Opt_D_dump_simpl)
+ , ( "ddump-simpl-iterations", setDumpFlag Opt_D_dump_simpl_iterations)
+ , ( "ddump-spec", setDumpFlag Opt_D_dump_spec)
+ , ( "ddump-prep", setDumpFlag Opt_D_dump_prep)
+ , ( "ddump-stg", setDumpFlag Opt_D_dump_stg)
+ , ( "ddump-stranal", setDumpFlag Opt_D_dump_stranal)
+ , ( "ddump-tc", setDumpFlag Opt_D_dump_tc)
+ , ( "ddump-types", setDumpFlag Opt_D_dump_types)
+ , ( "ddump-rules", setDumpFlag Opt_D_dump_rules)
+ , ( "ddump-cse", setDumpFlag Opt_D_dump_cse)
+ , ( "ddump-worker-wrapper", setDumpFlag Opt_D_dump_worker_wrapper)
+ , ( "ddump-rn-trace", setDumpFlag Opt_D_dump_rn_trace)
+ , ( "ddump-if-trace", setDumpFlag Opt_D_dump_if_trace)
+ , ( "ddump-tc-trace", setDumpFlag Opt_D_dump_tc_trace)
+ , ( "ddump-splices", setDumpFlag Opt_D_dump_splices)
+ , ( "ddump-rn-stats", setDumpFlag Opt_D_dump_rn_stats)
+ , ( "ddump-opt-cmm", setDumpFlag Opt_D_dump_opt_cmm)
+ , ( "ddump-simpl-stats", setDumpFlag Opt_D_dump_simpl_stats)
+ , ( "ddump-bcos", setDumpFlag Opt_D_dump_BCOs)
+ , ( "dsource-stats", setDumpFlag Opt_D_source_stats)
+ , ( "dverbose-core2core", setDumpFlag Opt_D_verbose_core2core)
+ , ( "dverbose-stg2stg", setDumpFlag Opt_D_verbose_stg2stg)
+ , ( "ddump-hi-diffs", setDumpFlag Opt_D_dump_hi_diffs)
+ , ( "ddump-hi", setDumpFlag Opt_D_dump_hi)
+ , ( "ddump-minimal-imports", setDumpFlag Opt_D_dump_minimal_imports)
+ , ( "ddump-vect", setDumpFlag Opt_D_dump_vect)
+ , ( "dcore-lint", setDumpFlag Opt_DoCoreLinting)
+ , ( "dstg-lint", setDumpFlag Opt_DoStgLinting)
+ , ( "dcmm-lint", setDumpFlag Opt_DoCmmLinting)
+ , ( "dshow-passes", NoArg (setRecompFlag False >> setVerbosity "2") )
------ Machine dependant (-m<blah>) stuff ---------------------------
- , ( "monly-2-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 2}) ))
- , ( "monly-3-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 3}) ))
- , ( "monly-4-regs", NoArg (updateState (\s -> s{stolen_x86_regs = 4}) ))
+ , ( "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}) ))
- ------ Compiler flags -----------------------------------------------
+ ------ 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) )
- , ( "fglasgow-exts", NoArg (setDynFlag Opt_GlasgowExts) )
+ ------ Optimisation flags ------------------------------------------
+ , ( "O" , NoArg (setOptLevel 1))
+ , ( "Onot" , NoArg (setOptLevel 0))
+ , ( "O" , PrefixPred (all isDigit) (setOptLevel . read))
- , ( "fallow-overlapping-instances",
- NoArg (setDynFlag Opt_AllowOverlappingInstances) )
+ , ( "fmax-simplifier-iterations",
+ PrefixPred (all isDigit)
+ (\n -> updDynFlags (\dfs ->
+ dfs{ maxSimplIterations = read n })) )
+
+ , ( "frule-check",
+ SepArg (\s -> updDynFlags (\dfs -> dfs{ ruleCheck = Just s })))
- , ( "fallow-undecidable-instances",
- NoArg (setDynFlag Opt_AllowUndecidableInstances) )
+ ------ Compiler flags -----------------------------------------------
- , ( "fgenerics", NoArg (setDynFlag Opt_Generics) )
+ , ( "fasm", AnySuffix (\_ -> setTarget HscAsm) )
+ , ( "fvia-c", NoArg (setTarget HscC) )
+ , ( "fvia-C", NoArg (setTarget HscC) )
+ , ( "filx", NoArg (setTarget HscILX) )
- , ( "freport-compile", NoArg (setDynFlag Opt_ReportCompile) )
+ , ( "fglasgow-exts", NoArg (mapM_ setDynFlag glasgowExtsFlags) )
+ , ( "fno-glasgow-exts", NoArg (mapM_ unSetDynFlag glasgowExtsFlags) )
+
+ -- 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<blah> flags can all be reversed with -fno-<blah>
+
+fFlags = [
+ ( "warn-duplicate-exports", Opt_WarnDuplicateExports ),
+ ( "warn-hi-shadowing", Opt_WarnHiShadows ),
+ ( "warn-incomplete-patterns", Opt_WarnIncompletePatterns ),
+ ( "warn-incomplete-record-updates", Opt_WarnIncompletePatternsRecUpd ),
+ ( "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 ),
+ ( "warn-orphans", Opt_WarnOrphans ),
+ ( "fi", Opt_FFI ), -- support `-ffi'...
+ ( "ffi", Opt_FFI ), -- ...and also `-fffi'
+ ( "arrows", Opt_Arrows ), -- arrow syntax
+ ( "parr", Opt_PArr ),
+ ( "th", Opt_TH ),
+ ( "implicit-prelude", Opt_ImplicitPrelude ),
+ ( "scoped-type-variables", Opt_ScopedTypeVariables ),
+ ( "monomorphism-restriction", Opt_MonomorphismRestriction ),
+ ( "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, Opt_ScopedTypeVariables ]
+
+isFFlag f = f `elem` (map fst fFlags)
+getFFlag f = fromJust (lookup f fFlags)
+
+-- -----------------------------------------------------------------------------
+-- Parsing the dynamic flags.
+
+-- we use a temporary global variable, for convenience
+
+GLOBAL_VAR(v_DynFlags, defaultDynFlags, DynFlags)
+
+processDynamicFlags :: [String] -> DynFlags -> IO (DynFlags,[String])
+processDynamicFlags args dflags = do
+ writeIORef v_DynFlags dflags
+ spare <- processArgs dynamic_flags args []
+ dflags <- readIORef v_DynFlags
+ return (dflags,spare)
+
+updDynFlags :: (DynFlags -> DynFlags) -> IO ()
+updDynFlags f = do dfs <- readIORef v_DynFlags
+ writeIORef v_DynFlags (f dfs)
+
+setDynFlag, unSetDynFlag :: DynFlag -> IO ()
+setDynFlag f = updDynFlags (\dfs -> dopt_set dfs f)
+unSetDynFlag f = updDynFlags (\dfs -> dopt_unset dfs f)
+
+setDumpFlag :: DynFlag -> OptKind
+setDumpFlag dump_flag
+ = NoArg (setRecompFlag False >> setDynFlag dump_flag)
+ -- Whenver we -ddump, switch off the recompilation checker,
+ -- else you don't see the dump!
+
+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
+
+setRecompFlag :: Bool -> IO ()
+setRecompFlag recomp = updDynFlags (\dfs -> dfs{ recompFlag = recomp })
+
+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<n>)")
+
+addCmdlineHCInclude a = updDynFlags (\s -> s{cmdlineHcIncludes = a : cmdlineHcIncludes s})
+
+extraPkgConf_ p = updDynFlags (\s -> s{ extraPkgConfs = p : extraPkgConfs s })
+noUserPkgConf_ = updDynFlags (\s -> s{ readUserPkgConf = False })
+
+exposePackage p =
+ updDynFlags (\s -> s{ packageFlags = ExposePackage p : packageFlags s })
+hidePackage p =
+ updDynFlags (\s -> s{ packageFlags = HidePackage p : packageFlags s })
+ignorePackage p =
+ updDynFlags (\s -> s{ packageFlags = IgnorePackage p : packageFlags s })
+
+-- -i on its own deletes the import paths
+addImportPath "" = updDynFlags (\s -> s{importPaths = []})
+addImportPath p = do
+ paths <- splitPathList p
+ updDynFlags (\s -> s{importPaths = importPaths s ++ paths})
+
+-- we can only switch between HscC, HscAsmm, and HscILX with dynamic flags
+-- (-fvia-C, -fasm, -filx respectively).
+setTarget l = updDynFlags (\dfs -> case hscTarget dfs of
+ HscC -> dfs{ hscTarget = l }
+ HscAsm -> dfs{ hscTarget = l }
+ HscILX -> dfs{ hscTarget = l }
+ _ -> dfs)
+
+setOptLevel :: Int -> IO ()
+setOptLevel n
+ = do dflags <- readIORef v_DynFlags
+ if hscTarget dflags == HscInterpreted && n > 0
+ then putStr "warning: -O conflicts with --interactive; -O ignored.\n"
+ else writeIORef v_DynFlags (updOptLevel n dflags)
+
-----------------------------------------------------------------------------
-- convert sizes like "3.5M" into integers
| 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 (OtherError ("can't decode size: " ++ str))
+ | otherwise = throwDyn (CmdLineError ("can't decode size: " ++ str))
where (m, c) = span pred str
n = read m :: Double
pred c = isDigit c || c == '.'
-floatOpt :: IORef Double -> String -> IO ()
-floatOpt ref str
- = writeIORef ref (read str :: Double)
+
+-----------------------------------------------------------------------------
+-- 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
-build_hsc_opts :: IO [String]
-build_hsc_opts = do
- opt_C_ <- getStaticOpts opt_C -- misc hsc opts
-
- -- warnings
- warn_level <- readIORef warning_opt
- let warn_opts = case warn_level of
- W_default -> standardWarnings
- W_ -> minusWOpts
- W_all -> minusWallOpts
- W_not -> []
-
- -- optimisation
- minus_o <- readIORef opt_level
- optimisation_opts <-
- case minus_o of
- 0 -> hsc_minusNoO_flags
- 1 -> hsc_minusO_flags
- 2 -> hsc_minusO2_flags
- _ -> error "unknown opt level"
- -- ToDo: -Ofile
-
- -- STG passes
- ways_ <- readIORef ways
- let stg_massage | WayProf `elem` ways_ = "-fmassage-stg-for-profiling"
- | otherwise = ""
-
- stg_stats <- readIORef opt_StgStats
- let stg_stats_flag | stg_stats = "-dstg-stats"
- | otherwise = ""
-
- let stg_opts = [ stg_massage, stg_stats_flag, "-flet-no-escape" ]
- -- let-no-escape always on for now
+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 anti_opt_C
- let basic_opts = opt_C_ ++ warn_opts ++ optimisation_opts ++ stg_opts
+ anti_flags <- getStaticOpts v_Anti_opt_C
+ let basic_opts = opt_C_
filtered_opts = filter (`notElem` anti_flags) basic_opts
- verb <- is_verbose
- let hi_vers = "-fhi-version="++cProjectVersionInt
-
- static <- (do s <- readIORef static; if s then return "-static" else return "")
+ static <- (do s <- readIORef v_Static; if s then return "-static"
+ else return "")
- -- get hi-file suffix
- hisuf <- readIORef hi_suf
+ return ( static : filtered_opts )
- -- hi-suffix for packages depends on the build tag.
- package_hisuf <-
- do tag <- readIORef build_tag
- if null tag
- then return "hi"
- else return (tag ++ "_hi")
+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) }
- import_dirs <- readIORef import_paths
- package_import_dirs <- getPackageImportPath
+ | isUpper (head main_fn) -- The arg looked like "Foo"
+ = writeIORef v_MainModIs (Just main_fn)
- return
- (
- filtered_opts
- ++ [ hi_vers, static, verb ]
- )
+ | 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 dflags
+#if alpha_TARGET_ARCH
+ = return ( ["-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.
+
+#elif hppa_TARGET_ARCH
+ -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
+ -- (very nice, but too bad the HP /usr/include files don't agree.)
+ = return ( ["-D_HPUX_SOURCE"], [] )
+
+#elif m68k_TARGET_ARCH
+ -- -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"] )
+
+#elif i386_TARGET_ARCH
+ -- -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 let n_regs = stolen_x86_regs dflags
+ 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 ]
+ )
+
+#elif ia64_TARGET_ARCH
+ = return ( [], ["-fomit-frame-pointer", "-G0"] )
+
+#elif x86_64_TARGET_ARCH
+ = return ( [], ["-fomit-frame-pointer"] )
+
+#elif mips_TARGET_ARCH
+ = return ( ["-static"], [] )
+
+#elif sparc_TARGET_ARCH
+ = 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.
+
+#elif powerpc_apple_darwin_TARGET
+ -- -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:
+ -- Turn off PIC code generation to save space and time.
+ -- -fno-common:
+ -- Don't generate "common" symbols - these are unwanted
+ -- in dynamic libraries.
+
+ = if opt_PIC
+ then return ( ["-no-cpp-precomp", "-fno-common"],
+ ["-fno-common"] )
+ else return ( ["-no-cpp-precomp", "-mdynamic-no-pic"],
+ ["-mdynamic-no-pic"] )
+
+#elif powerpc_TARGET_ARCH
+ | opt_PIC
+ = return ( ["-fPIC"], ["-fPIC"] )
+ | otherwise
+ = return ( [], [] )
+#endif
+
+-----------------------------------------------------------------------------
+-- local utils
+
+-- -----------------------------------------------------------------------------
+-- 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
+ | DoInteractive <- mode = 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