1 {-# OPTIONS -#include "hschooks.h" #-}
3 -----------------------------------------------------------------------------
4 -- $Id: DriverFlags.hs,v 1.87 2002/03/04 17:01:30 simonmar Exp $
8 -- (c) Simon Marlow 2000
10 -----------------------------------------------------------------------------
13 processArgs, OptKind(..), static_flags, dynamic_flags,
19 #include "HsVersions.h"
20 #include "../includes/config.h"
22 import BinIface ( compileIface )
23 import MkIface ( showIface )
35 import System ( exitWith, ExitCode(..) )
42 -----------------------------------------------------------------------------
45 -- Flag parsing is now done in stages:
47 -- * parse the initial list of flags and remove any flags understood
48 -- by the driver only. Determine whether we're in multi-compilation
49 -- or single-compilation mode (done in Main.main).
51 -- * gather the list of "static" hsc flags, and assign them to the global
52 -- static hsc flags variable.
54 -- * build the inital DynFlags from the remaining flags.
56 -- * complain if we've got any flags left over.
58 -- * for each source file: grab the OPTIONS, and build a new DynFlags
59 -- to pass to the compiler.
61 -----------------------------------------------------------------------------
62 -- Process command-line
65 = NoArg (IO ()) -- flag with no argument
66 | HasArg (String -> IO ()) -- flag has an argument (maybe prefix)
67 | SepArg (String -> IO ()) -- flag has a separate argument
68 | Prefix (String -> IO ()) -- flag is a prefix only
69 | OptPrefix (String -> IO ()) -- flag may be a prefix
70 | AnySuffix (String -> IO ()) -- flag is a prefix, pass whole arg to fn
71 | PassFlag (String -> IO ()) -- flag with no arg, pass flag to fn
72 | PrefixPred (String -> Bool) (String -> IO ())
73 | AnySuffixPred (String -> Bool) (String -> IO ())
75 processArgs :: [(String,OptKind)] -> [String] -> [String]
76 -> IO [String] -- returns spare args
77 processArgs _spec [] spare = return (reverse spare)
79 processArgs spec args@(('-':arg):args') spare = do
80 case findArg spec arg of
81 Just (rest,action) -> do args' <- processOneArg action rest args
82 processArgs spec args' spare
83 Nothing -> processArgs spec args' (('-':arg):spare)
85 processArgs spec (arg:args) spare =
86 processArgs spec args (arg:spare)
88 processOneArg :: OptKind -> String -> [String] -> IO [String]
89 processOneArg action rest (dash_arg@('-':arg):args) =
93 then io >> return args
94 else unknownFlagErr dash_arg
98 then fio rest >> return args
100 [] -> unknownFlagErr dash_arg
101 (arg1:args1) -> fio arg1 >> return args1
105 [] -> unknownFlagErr dash_arg
106 (arg1:args1) -> fio arg1 >> return args1
110 then fio rest >> return args
111 else unknownFlagErr dash_arg
115 then fio rest >> return args
116 else unknownFlagErr dash_arg
118 OptPrefix fio -> fio rest >> return args
120 AnySuffix fio -> fio dash_arg >> return args
122 AnySuffixPred p fio -> fio dash_arg >> return args
126 then unknownFlagErr dash_arg
127 else fio dash_arg >> return args
129 findArg :: [(String,OptKind)] -> String -> Maybe (String,OptKind)
131 = case [ (remove_spaces rest, k)
133 Just rest <- [my_prefix_match pat arg],
139 arg_ok (NoArg _) rest arg = null rest
140 arg_ok (HasArg _) rest arg = True
141 arg_ok (SepArg _) rest arg = null rest
142 arg_ok (Prefix _) rest arg = not (null rest)
143 arg_ok (PrefixPred p _) rest arg = not (null rest) && p rest
144 arg_ok (OptPrefix _) rest arg = True
145 arg_ok (PassFlag _) rest arg = null rest
146 arg_ok (AnySuffix _) rest arg = True
147 arg_ok (AnySuffixPred p _) rest arg = p arg
149 -----------------------------------------------------------------------------
152 -- note that ordering is important in the following list: any flag which
153 -- is a prefix flag (i.e. HasArg, Prefix, OptPrefix, AnySuffix) will override
154 -- flags further down the list with the same prefix.
157 [ ------- help / version ----------------------------------------------
158 ( "?" , NoArg showGhcUsage)
159 , ( "-help" , NoArg showGhcUsage)
160 , ( "-print-libdir" , NoArg (do getTopDir >>= putStrLn
161 exitWith ExitSuccess))
162 , ( "-version" , NoArg (do putStrLn (cProjectName
163 ++ ", version " ++ cProjectVersion)
164 exitWith ExitSuccess))
165 , ( "-numeric-version", NoArg (do putStrLn cProjectVersion
166 exitWith ExitSuccess))
168 ------- interfaces ----------------------------------------------------
169 , ( "-show-iface" , HasArg (\f -> do showIface f
170 exitWith ExitSuccess))
171 , ( "-compile-iface" , HasArg (\f -> do compileIface f
172 exitWith ExitSuccess))
174 ------- verbosity ----------------------------------------------------
175 , ( "n" , NoArg setDryRun )
177 ------- primary modes ------------------------------------------------
178 , ( "M" , PassFlag (setMode DoMkDependHS))
179 , ( "E" , PassFlag (setMode (StopBefore Hsc)))
180 , ( "C" , PassFlag (\f -> do setMode (StopBefore HCc) f
182 , ( "S" , PassFlag (setMode (StopBefore As)))
183 , ( "c" , PassFlag (setMode (StopBefore Ln)))
184 , ( "-make" , PassFlag (setMode DoMake))
185 , ( "-interactive" , PassFlag (setMode DoInteractive))
186 , ( "-mk-dll" , PassFlag (setMode DoMkDLL))
188 -- -fno-code says to stop after Hsc but don't generate any code.
189 , ( "fno-code" , PassFlag (\f -> do setMode (StopBefore HCc) f
191 writeIORef v_Recomp False))
193 ------- GHCi -------------------------------------------------------
194 , ( "ignore-dot-ghci", NoArg (writeIORef v_Read_DotGHCi False) )
195 , ( "read-dot-ghci" , NoArg (writeIORef v_Read_DotGHCi True) )
197 ------- recompilation checker --------------------------------------
198 , ( "recomp" , NoArg (writeIORef v_Recomp True) )
199 , ( "no-recomp" , NoArg (writeIORef v_Recomp False) )
201 ------- ways --------------------------------------------------------
202 , ( "prof" , NoArg (addNoDups v_Ways WayProf) )
203 , ( "unreg" , NoArg (addNoDups v_Ways WayUnreg) )
204 , ( "ticky" , NoArg (addNoDups v_Ways WayTicky) )
205 , ( "parallel" , NoArg (addNoDups v_Ways WayPar) )
206 , ( "gransim" , NoArg (addNoDups v_Ways WayGran) )
207 , ( "smp" , NoArg (addNoDups v_Ways WaySMP) )
208 , ( "debug" , NoArg (addNoDups v_Ways WayDebug) )
209 , ( "ndp" , NoArg (addNoDups v_Ways WayNDP) )
212 ------ Debugging ----------------------------------------------------
213 , ( "dppr-noprags", PassFlag (add v_Opt_C) )
214 , ( "dppr-debug", PassFlag (add v_Opt_C) )
215 , ( "dppr-user-length", AnySuffix (add v_Opt_C) )
216 -- rest of the debugging flags are dynamic
218 --------- Profiling --------------------------------------------------
219 , ( "auto-dicts" , NoArg (add v_Opt_C "-fauto-sccs-on-dicts") )
220 , ( "auto-all" , NoArg (add v_Opt_C "-fauto-sccs-on-all-toplevs") )
221 , ( "auto" , NoArg (add v_Opt_C "-fauto-sccs-on-exported-toplevs") )
222 , ( "caf-all" , NoArg (add v_Opt_C "-fauto-sccs-on-individual-cafs") )
223 -- "ignore-sccs" doesn't work (ToDo)
225 , ( "no-auto-dicts" , NoArg (add v_Anti_opt_C "-fauto-sccs-on-dicts") )
226 , ( "no-auto-all" , NoArg (add v_Anti_opt_C "-fauto-sccs-on-all-toplevs") )
227 , ( "no-auto" , NoArg (add v_Anti_opt_C "-fauto-sccs-on-exported-toplevs") )
228 , ( "no-caf-all" , NoArg (add v_Anti_opt_C "-fauto-sccs-on-individual-cafs") )
230 ------- Miscellaneous -----------------------------------------------
231 , ( "no-link-chk" , NoArg (return ()) ) -- ignored for backwards compat
232 , ( "no-hs-main" , NoArg (writeIORef v_NoHsMain True) )
234 ------- Output Redirection ------------------------------------------
235 , ( "odir" , HasArg (writeIORef v_Output_dir . Just) )
236 , ( "o" , SepArg (writeIORef v_Output_file . Just) )
237 , ( "osuf" , HasArg (writeIORef v_Object_suf . Just) )
238 , ( "hcsuf" , HasArg (writeIORef v_HC_suf . Just) )
239 , ( "hisuf" , HasArg (writeIORef v_Hi_suf) )
240 , ( "hidir" , HasArg (writeIORef v_Hi_dir . Just) )
241 , ( "buildtag" , HasArg (writeIORef v_Build_tag) )
242 , ( "tmpdir" , HasArg setTmpDir)
243 , ( "ohi" , HasArg (writeIORef v_Output_hi . Just) )
246 , ( "keep-hc-file" , AnySuffix (\_ -> writeIORef v_Keep_hc_files True) )
247 , ( "keep-s-file" , AnySuffix (\_ -> writeIORef v_Keep_s_files True) )
248 , ( "keep-raw-s-file", AnySuffix (\_ -> writeIORef v_Keep_raw_s_files True) )
250 , ( "keep-il-file" , AnySuffix (\_ -> writeIORef v_Keep_il_files True) )
251 , ( "keep-ilx-file" , AnySuffix (\_ -> writeIORef v_Keep_ilx_files True) )
253 , ( "keep-tmp-files" , AnySuffix (\_ -> writeIORef v_Keep_tmp_files True) )
255 , ( "split-objs" , NoArg (if can_split
256 then do writeIORef v_Split_object_files True
257 add v_Opt_C "-fglobalise-toplev-names"
258 else hPutStrLn stderr
259 "warning: don't know how to split \
260 \object files on this architecture"
263 ------- Include/Import Paths ----------------------------------------
264 , ( "i" , OptPrefix (addToDirList v_Import_paths) )
265 , ( "I" , Prefix (addToDirList v_Include_paths) )
267 ------- Libraries ---------------------------------------------------
268 , ( "L" , Prefix (addToDirList v_Library_paths) )
269 , ( "l" , Prefix (add v_Cmdline_libraries) )
271 ------- Packages ----------------------------------------------------
272 , ( "package-name" , HasArg (\s -> add v_Opt_C ("-inpackage="++s)) )
274 , ( "package-conf" , HasArg (readPackageConf) )
275 , ( "package" , HasArg (addPackage) )
276 , ( "syslib" , HasArg (addPackage) ) -- for compatibility w/ old vsns
278 ------- Specific phases --------------------------------------------
279 , ( "pgmP" , HasArg setPgmP )
280 , ( "pgmF" , HasArg setPgmF )
281 , ( "pgmc" , HasArg setPgmc )
282 , ( "pgmm" , HasArg setPgmm )
283 , ( "pgms" , HasArg setPgms )
284 , ( "pgma" , HasArg setPgma )
285 , ( "pgml" , HasArg setPgml )
287 , ( "pgmI" , HasArg setPgmI )
288 , ( "pgmi" , HasArg setPgmi )
291 , ( "optdep" , HasArg (add v_Opt_dep) )
292 , ( "optl" , HasArg (add v_Opt_l) )
293 , ( "optdll" , HasArg (add v_Opt_dll) )
295 ----- Linker --------------------------------------------------------
296 , ( "static" , NoArg (writeIORef v_Static True) )
297 , ( "dynamic" , NoArg (writeIORef v_Static False) )
298 , ( "rdynamic" , NoArg (return ()) ) -- ignored for compat w/ gcc
300 ----- RTS opts ------------------------------------------------------
301 , ( "H" , HasArg (setHeapSize . fromIntegral . decodeSize) )
302 , ( "Rghc-timing" , NoArg (enableTimingStats) )
304 ------ Compiler flags -----------------------------------------------
305 , ( "O2-for-C" , NoArg (writeIORef v_minus_o2_for_C True) )
306 , ( "O" , NoArg (setOptLevel 1))
307 , ( "Onot" , NoArg (setOptLevel 0))
308 , ( "O" , PrefixPred (all isDigit) (setOptLevel . read))
310 , ( "fno-asm-mangling" , NoArg (writeIORef v_Do_asm_mangling False) )
312 , ( "fmax-simplifier-iterations",
313 Prefix (writeIORef v_MaxSimplifierIterations . read) )
316 SepArg (\s -> writeIORef v_RuleCheck (Just s)) )
318 , ( "fusagesp" , NoArg (do writeIORef v_UsageSPInf True
319 add v_Opt_C "-fusagesp-on") )
321 , ( "fexcess-precision" , NoArg (do writeIORef v_Excess_precision True
322 add v_Opt_C "-fexcess-precision"))
324 -- Optimisation flags are treated specially, so the normal
325 -- -fno-* pattern below doesn't work. We therefore allow
326 -- certain optimisation passes to be turned off explicitly:
327 , ( "fno-strictness" , NoArg (writeIORef v_Strictness False) )
329 , ( "fno-cpr" , NoArg (writeIORef v_CPR False) )
331 , ( "fno-cse" , NoArg (writeIORef v_CSE False) )
333 -- All other "-fno-<blah>" options cancel out "-f<blah>" on the hsc cmdline
334 , ( "fno-", PrefixPred (\s -> isStaticHscFlag ("f"++s))
335 (\s -> add v_Anti_opt_C ("-f"++s)) )
337 -- Pass all remaining "-f<blah>" options to hsc
338 , ( "f", AnySuffixPred (isStaticHscFlag) (add v_Opt_C) )
343 ( "cpp", NoArg (updDynFlags (\s -> s{ cppFlag = True })) )
344 , ( "F", NoArg (updDynFlags (\s -> s{ ppFlag = True })) )
345 , ( "#include", HasArg (addCmdlineHCInclude) )
347 , ( "v", OptPrefix (setVerbosity) )
349 , ( "optL", HasArg (addOpt_L) )
350 , ( "optP", HasArg (addOpt_P) )
351 , ( "optF", HasArg (addOpt_F) )
352 , ( "optc", HasArg (addOpt_c) )
353 , ( "optm", HasArg (addOpt_m) )
354 , ( "opta", HasArg (addOpt_a) )
356 , ( "optI", HasArg (addOpt_I) )
357 , ( "opti", HasArg (addOpt_i) )
360 ------ HsCpp opts ---------------------------------------------------
361 -- With a C compiler whose system() doesn't use a UNIX shell (i.e.
362 -- mingwin gcc), -D and -U args must *not* be quoted, as the quotes
363 -- will be interpreted as part of the arguments, and not stripped;
364 -- on all other systems, quoting is necessary, to avoid interpretation
365 -- of shell metacharacters in the arguments (e.g. green-card's
366 -- -DBEGIN_GHC_ONLY='}-' trick).
367 #ifndef mingw32_TARGET_OS
368 , ( "D", Prefix (\s -> addOpt_P ("-D'"++s++"'") ) )
369 , ( "U", Prefix (\s -> addOpt_P ("-U'"++s++"'") ) )
371 , ( "D", Prefix (\s -> addOpt_P ("-D"++s) ) )
372 , ( "U", Prefix (\s -> addOpt_P ("-U"++s) ) )
375 ------ Debugging ----------------------------------------------------
376 , ( "dstg-stats", NoArg (writeIORef v_StgStats True) )
378 , ( "ddump-absC", NoArg (setDynFlag Opt_D_dump_absC) )
379 , ( "ddump-asm", NoArg (setDynFlag Opt_D_dump_asm) )
380 , ( "ddump-cpranal", NoArg (setDynFlag Opt_D_dump_cpranal) )
381 , ( "ddump-deriv", NoArg (setDynFlag Opt_D_dump_deriv) )
382 , ( "ddump-ds", NoArg (setDynFlag Opt_D_dump_ds) )
383 , ( "ddump-flatC", NoArg (setDynFlag Opt_D_dump_flatC) )
384 , ( "ddump-foreign", NoArg (setDynFlag Opt_D_dump_foreign) )
385 , ( "ddump-inlinings", NoArg (setDynFlag Opt_D_dump_inlinings) )
386 , ( "ddump-occur-anal", NoArg (setDynFlag Opt_D_dump_occur_anal) )
387 , ( "ddump-parsed", NoArg (setDynFlag Opt_D_dump_parsed) )
388 , ( "ddump-realC", NoArg (setDynFlag Opt_D_dump_realC) )
389 , ( "ddump-rn", NoArg (setDynFlag Opt_D_dump_rn) )
390 , ( "ddump-simpl", NoArg (setDynFlag Opt_D_dump_simpl) )
391 , ( "ddump-simpl-iterations", NoArg (setDynFlag Opt_D_dump_simpl_iterations) )
392 , ( "ddump-spec", NoArg (setDynFlag Opt_D_dump_spec) )
393 , ( "ddump-prep", NoArg (setDynFlag Opt_D_dump_prep) )
394 , ( "ddump-stg", NoArg (setDynFlag Opt_D_dump_stg) )
395 , ( "ddump-stranal", NoArg (setDynFlag Opt_D_dump_stranal) )
396 , ( "ddump-tc", NoArg (setDynFlag Opt_D_dump_tc) )
397 , ( "ddump-types", NoArg (setDynFlag Opt_D_dump_types) )
398 , ( "ddump-rules", NoArg (setDynFlag Opt_D_dump_rules) )
399 , ( "ddump-usagesp", NoArg (setDynFlag Opt_D_dump_usagesp) )
400 , ( "ddump-cse", NoArg (setDynFlag Opt_D_dump_cse) )
401 , ( "ddump-worker-wrapper", NoArg (setDynFlag Opt_D_dump_worker_wrapper) )
402 , ( "dshow-passes", NoArg (setVerbosity "2") )
403 , ( "ddump-rn-trace", NoArg (setDynFlag Opt_D_dump_rn_trace) )
404 , ( "ddump-tc-trace", NoArg (setDynFlag Opt_D_dump_tc_trace) )
405 , ( "ddump-rn-stats", NoArg (setDynFlag Opt_D_dump_rn_stats) )
406 , ( "ddump-stix", NoArg (setDynFlag Opt_D_dump_stix) )
407 , ( "ddump-simpl-stats", NoArg (setDynFlag Opt_D_dump_simpl_stats) )
408 , ( "ddump-bcos", NoArg (setDynFlag Opt_D_dump_BCOs) )
409 , ( "dsource-stats", NoArg (setDynFlag Opt_D_source_stats) )
410 , ( "dverbose-core2core", NoArg (setDynFlag Opt_D_verbose_core2core) )
411 , ( "dverbose-stg2stg", NoArg (setDynFlag Opt_D_verbose_stg2stg) )
412 , ( "ddump-hi-diffs", NoArg (setDynFlag Opt_D_dump_hi_diffs) )
413 , ( "ddump-hi", NoArg (setDynFlag Opt_D_dump_hi) )
414 , ( "ddump-minimal-imports", NoArg (setDynFlag Opt_D_dump_minimal_imports) )
415 , ( "ddump-vect", NoArg (setDynFlag Opt_D_dump_vect) )
416 , ( "dcore-lint", NoArg (setDynFlag Opt_DoCoreLinting) )
417 , ( "dstg-lint", NoArg (setDynFlag Opt_DoStgLinting) )
418 , ( "dusagesp-lint", NoArg (setDynFlag Opt_DoUSPLinting) )
420 ------ Machine dependant (-m<blah>) stuff ---------------------------
422 , ( "monly-2-regs", NoArg (updDynFlags (\s -> s{stolen_x86_regs = 2}) ))
423 , ( "monly-3-regs", NoArg (updDynFlags (\s -> s{stolen_x86_regs = 3}) ))
424 , ( "monly-4-regs", NoArg (updDynFlags (\s -> s{stolen_x86_regs = 4}) ))
426 ------ Warning opts -------------------------------------------------
427 , ( "W" , NoArg (mapM_ setDynFlag minusWOpts) )
428 , ( "Wall" , NoArg (mapM_ setDynFlag minusWallOpts) )
429 , ( "Wnot" , NoArg (mapM_ unSetDynFlag minusWallOpts) ) /* DEPREC */
430 , ( "w" , NoArg (mapM_ unSetDynFlag minusWallOpts) )
432 ------ Compiler flags -----------------------------------------------
434 , ( "fasm", AnySuffix (\_ -> setLang HscAsm) )
435 , ( "fvia-c", NoArg (setLang HscC) )
436 , ( "fvia-C", NoArg (setLang HscC) )
437 , ( "filx", NoArg (setLang HscILX) )
439 -- "active negatives"
440 , ( "fno-implicit-prelude", NoArg (setDynFlag Opt_NoImplicitPrelude) )
441 , ( "fno-monomorphism-restriction",
442 NoArg (setDynFlag Opt_NoMonomorphismRestriction) )
444 -- the rest of the -f* and -fno-* flags
445 , ( "fno-", PrefixPred (\f -> isFFlag f) (\f -> unSetDynFlag (getFFlag f)) )
446 , ( "f", PrefixPred (\f -> isFFlag f) (\f -> setDynFlag (getFFlag f)) )
449 -- these -f<blah> flags can all be reversed with -fno-<blah>
452 ( "warn-duplicate-exports", Opt_WarnDuplicateExports ),
453 ( "warn-hi-shadowing", Opt_WarnHiShadows ),
454 ( "warn-incomplete-patterns", Opt_WarnIncompletePatterns ),
455 ( "warn-missing-fields", Opt_WarnMissingFields ),
456 ( "warn-missing-methods", Opt_WarnMissingMethods ),
457 ( "warn-missing-signatures", Opt_WarnMissingSigs ),
458 ( "warn-name-shadowing", Opt_WarnNameShadowing ),
459 ( "warn-overlapping-patterns", Opt_WarnOverlappingPatterns ),
460 ( "warn-simple-patterns", Opt_WarnSimplePatterns ),
461 ( "warn-type-defaults", Opt_WarnTypeDefaults ),
462 ( "warn-unused-binds", Opt_WarnUnusedBinds ),
463 ( "warn-unused-imports", Opt_WarnUnusedImports ),
464 ( "warn-unused-matches", Opt_WarnUnusedMatches ),
465 ( "warn-deprecations", Opt_WarnDeprecations ),
466 ( "glasgow-exts", Opt_GlasgowExts ),
467 ( "parr", Opt_PArr ),
468 ( "allow-overlapping-instances", Opt_AllowOverlappingInstances ),
469 ( "allow-undecidable-instances", Opt_AllowUndecidableInstances ),
470 ( "allow-incoherent-instances", Opt_AllowIncoherentInstances ),
471 ( "generics", Opt_Generics )
474 isFFlag f = f `elem` (map fst fFlags)
475 getFFlag f = fromJust (lookup f fFlags)
477 -----------------------------------------------------------------------------
478 -- convert sizes like "3.5M" into integers
480 decodeSize :: String -> Integer
482 | c == "" = truncate n
483 | c == "K" || c == "k" = truncate (n * 1000)
484 | c == "M" || c == "m" = truncate (n * 1000 * 1000)
485 | c == "G" || c == "g" = truncate (n * 1000 * 1000 * 1000)
486 | otherwise = throwDyn (CmdLineError ("can't decode size: " ++ str))
487 where (m, c) = span pred str
489 pred c = isDigit c || c == '.'
492 -----------------------------------------------------------------------------
495 foreign import "setHeapSize" unsafe setHeapSize :: Int -> IO ()
496 foreign import "enableTimingStats" unsafe enableTimingStats :: IO ()
498 -----------------------------------------------------------------------------
499 -- Build the Hsc static command line opts
501 buildStaticHscOpts :: IO [String]
502 buildStaticHscOpts = do
504 opt_C_ <- getStaticOpts v_Opt_C -- misc hsc opts from the command line
507 minus_o <- readIORef v_OptLevel
508 let optimisation_opts =
510 0 -> hsc_minusNoO_flags
511 1 -> hsc_minusO_flags
512 2 -> hsc_minusO2_flags
513 n -> throwDyn (CmdLineError ("unknown optimisation level: "
517 -- take into account -fno-* flags by removing the equivalent -f*
518 -- flag from our list.
519 anti_flags <- getStaticOpts v_Anti_opt_C
520 let basic_opts = opt_C_ ++ optimisation_opts
521 filtered_opts = filter (`notElem` anti_flags) basic_opts
523 static <- (do s <- readIORef v_Static; if s then return "-static"
526 return ( static : filtered_opts )
528 -----------------------------------------------------------------------------
529 -- Via-C compilation stuff
531 -- flags returned are: ( all C compilations
532 -- , registerised HC compilations
536 | prefixMatch "alpha" cTARGETPLATFORM
537 = return ( ["-static", "-w", "-mieee"], [] )
538 -- For now, to suppress the gcc warning "call-clobbered
539 -- register used for global register variable", we simply
540 -- disable all warnings altogether using the -w flag. Oh well.
542 | prefixMatch "hppa" cTARGETPLATFORM
543 -- ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
544 -- (very nice, but too bad the HP /usr/include files don't agree.)
545 = return ( ["-static", "-D_HPUX_SOURCE"], [] )
547 | prefixMatch "m68k" cTARGETPLATFORM
548 -- -fno-defer-pop : for the .hc files, we want all the pushing/
549 -- popping of args to routines to be explicit; if we let things
550 -- be deferred 'til after an STGJUMP, imminent death is certain!
552 -- -fomit-frame-pointer : *don't*
553 -- It's better to have a6 completely tied up being a frame pointer
554 -- rather than let GCC pick random things to do with it.
555 -- (If we want to steal a6, then we would try to do things
556 -- as on iX86, where we *do* steal the frame pointer [%ebp].)
557 = return ( [], ["-fno-defer-pop", "-fno-omit-frame-pointer"] )
559 | prefixMatch "i386" cTARGETPLATFORM
560 -- -fno-defer-pop : basically the same game as for m68k
562 -- -fomit-frame-pointer : *must* in .hc files; because we're stealing
563 -- the fp (%ebp) for our register maps.
564 = do n_regs <- dynFlag stolen_x86_regs
565 sta <- readIORef v_Static
566 return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else "",
567 if suffixMatch "mingw32" cTARGETPLATFORM then "-mno-cygwin" else "" ],
568 [ "-fno-defer-pop", "-fomit-frame-pointer",
569 "-DSTOLEN_X86_REGS="++show n_regs ]
572 | prefixMatch "mips" cTARGETPLATFORM
573 = return ( ["-static"], [] )
575 | prefixMatch "sparc" cTARGETPLATFORM
576 = return ( [], ["-w"] )
577 -- For now, to suppress the gcc warning "call-clobbered
578 -- register used for global register variable", we simply
579 -- disable all warnings altogether using the -w flag. Oh well.
581 | prefixMatch "powerpc-apple-darwin" cTARGETPLATFORM
582 = return ( ["-no-cpp-precomp"], [""] )
584 | prefixMatch "powerpc" cTARGETPLATFORM || prefixMatch "rs6000" cTARGETPLATFORM
585 = return ( ["-static"], ["-finhibit-size-directive"] )
590 -----------------------------------------------------------------------------
593 addOpt_L a = updDynFlags (\s -> s{opt_L = a : opt_L s})
594 addOpt_P a = updDynFlags (\s -> s{opt_P = a : opt_P s})
595 addOpt_F a = updDynFlags (\s -> s{opt_F = a : opt_F s})
596 addOpt_c a = updDynFlags (\s -> s{opt_c = a : opt_c s})
597 addOpt_a a = updDynFlags (\s -> s{opt_a = a : opt_a s})
598 addOpt_m a = updDynFlags (\s -> s{opt_m = a : opt_m s})
600 addOpt_I a = updDynFlags (\s -> s{opt_I = a : opt_I s})
601 addOpt_i a = updDynFlags (\s -> s{opt_i = a : opt_i s})
604 setVerbosity "" = updDynFlags (\dfs -> dfs{ verbosity = 3 })
606 | all isDigit n = updDynFlags (\dfs -> dfs{ verbosity = read n })
607 | otherwise = throwDyn (UsageError "can't parse verbosity flag (-v<n>)")
609 addCmdlineHCInclude a = updDynFlags (\s -> s{cmdlineHcIncludes = a : cmdlineHcIncludes s})